CN106694271A - Spraying pressure-stable trunk whitening machine - Google Patents

Abstract

The invention discloses a trunk whitewashing machine with stable spray pressure, which comprises a motor vehicle, a working arm is arranged at the front of the motor vehicle, and a spray barrel assembly is arranged at the front end of the work arm, and the spray barrel assembly includes a spray head. The motor car is provided with a mixed liquid tank for storing paint. The mixed liquid tank is connected to the spray head through a paint delivery pipeline. A liquid valve is provided at the connection between the paint delivery pipeline and the spray head. There is a pressure storage tank, and a pressure sensor is arranged on the pressure storage tank, and the pressure sensor is electrically connected to a control circuit, and the control circuit is connected to control the opening and closing of the liquid valve. The invention has the advantage that the spraying pressure can be higher and the spraying effect can be more uniform during the spraying operation of the tree trunk whitening machine.

Description

A tree trunk whitening machine with stable spray pressure

【Technical field】

The invention relates to a tree trunk whitening machine with stable spray pressure, which belongs to the field of tree maintenance equipment.

【Background technique】

In order to prevent tree diseases and insect pests and survive the winter safely, for many years, garden management departments and urban construction management departments at home and abroad have been afforesting trees on both sides of the road and in gardens in order to achieve one tree in winter and less insects in summer. Apply lime water and apply white liquid paint. In winter in most parts of our country, the temperature difference between day and night is large. The trunk is irradiated by the sun during the day, and the temperature on the surface of the trunk rises, especially those dark brown trunks, which are easier to absorb heat, making the temperature of the trunk rise faster, and enter the night. The ambient temperature drops rapidly, one cold and one hot, the bark on the trunk is very easy to crack, especially the thicker trunk is dark in color, the tissue toughness is relatively poor, and it is easier to crack. These cracked bark often become places where pests and diseases occur A place where insect eggs overwinter. Lime has a certain bactericidal and insecticidal effect. It can kill the parasitic eggs in the cracked part of the bark and accelerate the healing of the cracked part. During the day, it can also reflect part of the sunlight, reduce the temperature difference, delay the budding and flowering period of trees while preventing frostbite, and prevent frost damage in early spring.

But for many years, the work of applying lime water to tree trunks has been done manually with brushes and sticks. For northern China, it is unimaginable to paint a large number of tree trunks in the ten days before winter , because if you brush it early, it will be washed away by the rain, and it will not be able to brush it if it is frozen. In the south, it needs to be brushed several times a year. Whenever the rainwater washes away the lime water of the tree trunk, it needs to be repainted. In recent years, there have been several mechanized machines for applying lime water to tree trunks, such as Chinese invention patents: [trunk whitening machine] patent number: ZL2013200219457.6, [tree trunk whitening machine] patent number: 201320087220.3, [spraying tree trunks] White liquid machine] Patent No. 2013 2 0709457.0 There are some problems in the use of these three patents:

1. When the paint is being sprayed, only the working pressure of the pressure pump is used to make the paint fill the pipeline first, and a certain pressure is generated in the pipeline. At the moment when the spraying work starts, the nozzle reaches a certain pressure requirement to achieve the spraying effect, but This kind of pressure is maintained for a short time, and it is easy to cause the problem of sufficient pressure in the early stage and insufficient pressure in the later stage;

2. The stirring mechanism set in the liquid tank can only stir the liquid at the rotation diameter of the stirring wheel in the tank evenly, and the area outside the rotation diameter cannot be effectively stirred, so the precipitation of the liquid in the tank has not been effectively solved;

3. The liquid used to transport the spraying liquid pipeline and the cleaning pipeline cannot be automatically interchanged in terms of liquid exchange. If the user forgets to clean the spraying liquid delivery pipeline at the end of the work from the operating machine, the pipeline will be blocked by the sediment of the liquid , Seriously, the machine may be scrapped.

The above technical differences and defects lead to inconspicuous improvement in efficiency, and the reliability of the machine in use is relatively fragile, so it has not been widely used in the market.

Although some tree trunk lime water spraying machines have been designed in recent years, because it requires 2-3 people to operate, the operation is cumbersome, and it takes a long time to spray a tree. The efficiency is not much different from that of manual brushing. The main thing is that these spraying machines are difficult to overcome the blockage of liquid delivery pipes and nozzles by high-concentration liquids and cannot be used in practical applications.

【Content of invention】

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a tree trunk whitening machine with stable spray pressure, which allows the trunk whitening machine to have a higher spray pressure and a more uniform spraying effect during the spraying operation.

To solve the above technical problems, the present invention adopts the following technical solutions:

A tree trunk whitewashing machine with stable spray pressure, comprising a motor vehicle, the motor vehicle is connected with a working arm, the front end of the working arm is provided with a spray barrel assembly, the spray barrel assembly includes a spray head, and the motor vehicle is provided with a A mixed liquid tank, the mixed liquid tank is connected to the spray head through a paint delivery pipeline, a liquid valve is provided at the connection between the paint delivery pipeline and the spray head, and a pressure storage tank is provided on the paint delivery pipeline. A pressure sensor is provided on the pressure storage tank, and the pressure sensor is electrically connected to a control circuit, and the control circuit is connected to the pressure pump and controls the opening and closing of the pressure pump.

Adopt beneficial effect of the present invention:

In the original technology, when the paint delivery pipeline is spraying, only the working pressure of the pressure pump is used to fill the paint delivery pipeline with the paint first, and a certain pressure is generated in the paint delivery pipeline. At the moment when the spraying work starts, the nozzle reaches A certain pressure is required to achieve the injection effect, but the pressure maintenance time is very short, and it is easy to cause the problem of sufficient pressure in the early stage and insufficient pressure in the later stage. After the pressure storage tank and pressure sensor are added in the present invention, it is more dependent on pressure storage The pressure of the tank is maintained in the later stage, that is, when the pressure pump pressurizes the paint delivery pipeline, a part of the pressure is stored in the pressure storage tank for temporary storage. When the pressure sensor senses that the pressure is sufficient, the pressure pump is turned off, and then it is turned on. During the spraying operation, the pressure in the pressure storage tank will be continuously released, so that the nozzle can always maintain a high pressure state, and finally make the paint more uniform during spraying. In addition, in the present invention, the control circuit is used to realize automatic switching, which can ensure the stable progress of the spraying operation.

Preferably, a liquid valve is provided at the connection between the paint delivery pipeline and the spray head, and the liquid valve is electrically connected to the control circuit.

Preferably, the pressure pump is connected with a pressure pump motor, and the control circuit is configured to: when the pressure sensor is greater than the upper limit preset value, the liquid valve is opened, and the control circuit controls the pressure pump motor to close; When the lower limit preset value is reached, the liquid valve is closed and the pressure pump motor is turned on.

Preferably, the upper limit preset value ranges from 0.3 to 0.6Mpa, and the lower limit preset value ranges from 0.01 to 0.1Mpa.

Preferably, the pressure pump divides the paint delivery pipeline into a high-pressure delivery pipeline and an ordinary delivery pipeline, the ordinary delivery pipeline is directly connected to the mixed liquid tank, and a mixed liquid control valve is provided on the ordinary delivery pipeline.

Preferably, the mixed liquid control valve is connected to the control circuit.

Preferably, the motor vehicle is also provided with a cleaning liquid tank, the cleaning liquid tank is connected with a cleaning liquid pipeline, the cleaning liquid pipeline is connected with the paint delivery pipeline, and the cleaning liquid pipeline is provided with a cleaning liquid control system. valve.

Preferably, the cleaning liquid control valve is connected to the control circuit.

Preferably, a stirring shaft is provided at the bottom of the mixed liquid tank.

These characteristics and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

【Description of drawings】

Below in conjunction with accompanying drawing, the present invention will be further described:

Fig. 1 is the structural representation of the initial working state of the trunk whitening machine of the present invention;

Fig. 2 is the structural representation when the lifting mechanism of the trunk whitewashing machine of the present invention rises;

Fig. 3 is the structural representation of the liquid storage tank in the trunk whitening machine of the present invention;

Fig. 4 is the schematic flow sheet of coating when spraying and reclaiming in the trunk whitening machine of the present invention;

Fig. 5 is the overall schematic diagram of the first connecting mechanism in the trunk whitening machine of the present invention;

Fig. 6 is a schematic diagram of the turning mechanism in the first connection mechanism of the trunk whitening machine of the present invention;

Fig. 7 is a schematic diagram of the first rotating mechanism in the first connecting mechanism of the trunk whitening machine of the present invention;

Fig. 8 is the schematic diagram of lifting mechanism in the trunk whitening machine of the present invention;

Fig. 9 is a schematic diagram of a transverse section in the lifting mechanism of the trunk whitewashing machine of the present invention;

Fig. 10 is a schematic diagram of the connection between the pulley and the telescopic beam frame plate in the lifting mechanism of the trunk whitewashing machine of the present invention;

Fig. 11 is the schematic diagram of the second connection mechanism of the trunk whitening machine of the present invention;

Fig. 12 is a structural schematic diagram of the second connection mechanism and telescopic mechanism of the trunk whitening machine of the present invention;

Fig. 13 is a schematic structural view of the third connection mechanism of the trunk whitewashing machine of the present invention;

Fig. 14 is a schematic diagram of the automatic return mechanism in the third connection mechanism of the trunk whitewashing machine of the present invention;

Fig. 15 is a return flowchart of the trunk whitewashing machine of the present invention under the action of the automatic return mechanism;

Figure 16 is a schematic diagram of one of the rotations of the trunk whitewashing machine of the present invention;

Fig. 17 is another schematic diagram of the rotation of the trunk whitewashing machine of the present invention;

Fig. 18 is a schematic diagram of the trunk whitewashing machine of the present invention when it is rotated 90 degrees by the first rotating mechanism;

Fig. 19 is a schematic structural view of the spray barrel assembly in the trunk whitening machine of the present invention;

Fig. 20 is a simplified top view schematic diagram of the spray barrel assembly in the trunk whitening machine of the present invention;

Fig. 21 is a working schematic diagram of the recycling assembly in the spray barrel assembly of the trunk whitewashing machine of the present invention;

Fig. 22 is a schematic diagram of connection of two return water control valves in the spray barrel assembly of the tree trunk whitening machine of the present invention.

【detailed description】

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

As shown in Fig. 1 and Fig. 2, the present embodiment is a kind of trunk whitewashing machine, comprises motor vehicle, and the front part of motor vehicle is provided with working arm, and the front end of working arm is provided with spray barrel assembly 1, and described spray barrel assembly 1 includes two left half barrels 11 and right half barrels 12 that can be opened and closed. The spray barrel assembly 1 is provided with a nozzle 102. When the left half barrel 11 and the right half barrel 12 are in the open state, they surround the trunk, and then from Spray paint in the nozzle 102, and paint is generally lime mixture, just can finish spraying in a few seconds, start motor vehicle after spraying, can continue to carry out spraying operation on next tree, and spraying efficiency is very high.

In the specific structure of the present embodiment, the motor vehicle includes a frame body, and the frame body includes a frame predecessor 21, a driver's seat 22, and a frame tail 23. In this embodiment, the driver's seat 22 is located at the frame predecessor 21 and the frame tail 23. Among them, a hydraulic oil tank 231, a generator 234, and a motor vehicle engine 235 are installed on the rear part 23 of the vehicle frame, and an air compression pump 37 and a liquid storage box are arranged on the vehicle frame predecessor 21, wherein the liquid storage box is composed of two parts, specifically Referring to Fig. 3, one of them is a mixed liquid tank 31, and the other is a cleaning liquid tank 32. The mixed liquid tank 31 is used to store paint, and the cleaned liquid tank 32 is used to store cleaning liquid. The mixed liquid tank 31 and the spray barrel assembly 1 A paint delivery pipeline is connected between the spray heads 102, and the paint is transported to the spray heads 102 through the paint delivery pipeline for spraying.

As shown in Fig. 3 and Fig. 4, in order to prevent the paint from solidifying in the paint delivery pipeline after the spraying work is finished, a cleaning liquid tank 32 is specially provided in the liquid storage tank in this embodiment, and the cleaning liquid tank 32 Separately connected with a cleaning liquid pipeline 321, the cleaning liquid pipeline 321 communicates with the paint delivery pipeline, and the cleaning liquid pipeline 321 is provided with a cleaning liquid control valve 322. The liquid flushes the paint delivery channel to prevent the paint from solidifying in the paint delivery pipe.

In addition, in this embodiment, in order to achieve more automation of the entire cleaning and spraying process, a pressure pump 33 is provided on the paint delivery pipeline in this embodiment. The pressure pump 33 is connected to a pressure pump motor 331. Under the action of the pressure pump 33, The paint delivery pipeline between the pressure pump 33 and the spray barrel assembly 1 is called a high-pressure delivery pipeline 311, and the high-pressure delivery pipeline 311 is provided with a pressure storage tank 34 and a pressure sensor 341. There is a liquid valve 101, and the liquid valve 101 specifically includes an upper valve 1011 and a lower valve 1012, which will be described in detail below, and between the pressure pump 33 and the mixed liquid tank 31 is a common delivery pipeline 312, that is, the common delivery pipeline in this embodiment 312 and the high-pressure delivery pipeline 311 together form the paint delivery pipeline. The common delivery pipeline 312 is provided with a mixed liquid control valve 313, and the cleaning liquid pipeline 321 is connected with the common delivery pipeline 312. The whole cleaning and spraying process is controlled by a control circuit, and the control circuit It is electrically connected with the liquid valve 101 , the pressure sensor 341 , the pressure pump motor 331 and the cleaning liquid control valve 322 .

When starting to work, the pressure in the pressure storage tank 34 is relatively small, which is less than the lower limit preset value on the pressure sensor 341. The lower limit preset value ranges from 0.01 to 0.1Mpa. At this time, the control circuit controls the pressure pump motor 331 to start, driving the pressure The pump 33 works, the mixed liquid control valve 313 is opened at this time, and the cleaning liquid control valve 322 is closed, the paint enters the high-pressure delivery pipeline 311 through the ordinary delivery pipeline 312, and the liquid valve 101 between the high-pressure delivery pipeline 311 and the spray barrel assembly 1 In the closed state, the pressure in the high-pressure delivery pipeline 311 continues to rise at this time, and a part of the pressure will be stored in the pressure storage tank 34, and the pressure in the pressure storage tank 34 will also increase thereupon. When the pressure sensor at the pressure storage tank 34 When the upper limit preset value is reached at 341, the upper limit preset value ranges from 0.3 to 0.6Mpa, and the pressure pump motor 331 is powered off and stops working. At this time, the liquid valve 101 is opened, and the paint in the high-pressure delivery pipeline 311 is stored in the pressure storage tank. 34, spray from the shower head 102, and when the liquid valve 101 is closed, the paint will not spray from the shower head 102, to repeat the above-mentioned operation process.

In the original technology, the paint is only delivered by the pressure of the pressure pump 33. The disadvantage is that the liquid valve 101 reaches the pressure requirement at the nozzle 102 at the moment when the liquid valve 101 is just opened, but the maintenance time is very short. After the storage tank 34 and the pressure sensor 341, the paint in the high-pressure delivery pipeline 311 not only relies on the action of the pressure pump 33, but also relies more on the pressure of the pressure storage tank 34, so that after the liquid valve 101 is opened, the high-pressure delivery pipeline 311 It can maintain a high pressure state for a long time, and finally make the paint more uniform when spraying.

When the spraying work is completed, the control circuit controls the mixed liquid control valve 313 to close, and at this time the cleaning liquid control valve 322 is opened, and the cleaning liquid enters the high-pressure delivery pipeline 311, thereby washing away the remaining paint in the high-pressure delivery pipeline 311 to prevent The paint is solidified in the high-pressure delivery pipeline 311. In this embodiment, the cleaning liquid control valve 322 and the mixed liquid control valve 313 are both controlled by the control circuit, which can realize automatic switching.

In addition, in order to prevent the paint from being deposited for a long time in the mixed liquid tank 31, in this embodiment, a stirring system is provided in the mixed liquid tank 31. In this embodiment, the stirring system is arranged at the bottom of the mixed liquid tank 31. Because the coating basically settles at the bottom of the mixed liquid tank 31 when it settles, so the stirring system is arranged at the bottom of the mixed liquid tank 31 to maximize the anti-sedimentation effect.

Specifically, as shown in Figure 3, two stirring shaft bearing seats 314 are installed on the inner side wall of the mixed liquid tank 31 in this embodiment, and the two stirring shaft bearing seats 314 are arranged oppositely. A stirring shaft 315 is connected in rotation, and one end of the stirring shaft 315 extends to the outside of the mixed liquid tank 31, and is connected with the stirring power device through a coupling 318. The stirring power device is a stirring motor 316, and after rotation, the stirring shaft 315 is driven. Rotating can stir the sediment in the mixed liquid tank 31 to solve the sedimentation problem in the mixed liquid tank 31 . In addition, a mixing liquid tank cover 317 is provided on the top of the mixing liquid tank 31 , and a cleaning liquid tank cover 323 is provided on the cleaning liquid tank 32 .

The working arm in this embodiment is generally divided into the front section of the working arm and the rear section of the working arm. Taking Figures 1 and 2 as examples, the front section of the working arm mainly includes a telescopic mechanism 5, and the rear section of the working arm mainly includes a lifting mechanism 7. A first connection mechanism 8 is connected between the bottom of the mechanism 7 and the frame predecessor 21, a second connection mechanism 6 is connected between the lifting mechanism 7 and the telescopic mechanism 5, and a third connection mechanism is provided between the telescopic mechanism 5 and the spray barrel assembly 1. Institution 4.

The above-mentioned institutions are described in detail below. In order to make the description more clear and unified, the X-axis, Y-axis, and Z-axis are introduced in this embodiment. The respective directions of the X-axis, Y-axis, and Z-axis can be referred to in Figure 1, which shows the initial state diagram , in this embodiment, the X-axis direction is the forward and backward traveling direction of the vehicle.

First of all, the first connecting mechanism 8, the first connecting mechanism 8 mainly includes three parts: an overturning mechanism, a first lifting mechanism, and a first rotating mechanism. The first pulling mechanism can make the lifting mechanism 7 rotate around the Y axis, and the first rotating mechanism can make the entire lifting mechanism 7 rotate around the Z axis.

Turning mechanism: combined with Figure 5 and Figure 6, it includes a turning cylinder support 81, which is fixedly connected with the frame predecessor 21, and a turning cylinder 82 is arranged on the turning cylinder support 81, and the telescoping direction of the turning cylinder 82 is the Y-axis direction One end of the overturning oil cylinder 82 is fixedly installed on the overturning oil cylinder bracket 81, and the other end is connected with a bent plate 83 of the vehicle frame. The bent plate 83 of the vehicle frame is an L-shaped plate, including a vertical plate 831 of a bent plate and a transverse plate 832 of a bent plate. The bending plate transverse plate 832 itself is connected to the turning cylinder support 81 through the turning shaft 833. A turning sleeve 834 is arranged between the turning shaft 833 and the turning oil cylinder support 81. When the telescopic end of the turning oil cylinder 82 acts on the vertical direction of the bent plate When the board 831 is on the board 831, it will drive the entire frame bending board 83 to rotate with the turning shaft 833 as the axis, that is, to rotate along the X-axis direction, so that the vertical angle of the spray barrel assembly 1 can be adjusted, and corresponding adjustments can be made according to the verticality of the trunk. Adjustment. The angle of turning over by the turning mechanism is relatively small, just a small amount of rotation.

The first lifting mechanism: referring to Fig. 5, it includes a drum base 84, a base swing hinge 841 is provided between the drum base 84 and the frame bend 83, and a base swing hinge 841 is provided between the drum base 84 and the frame bend 83. There is a first lifting cylinder 85, and when the first lifting cylinder 85 is stretching, it drives the drum base 84 around the axis of the base swing hinge 841 to rotate toward the frame bend 83 or away from the frame bend 83, that is, when the vehicle When the frame bending plate 83 is in a horizontal state, the rotating drum base 84 rotates with the Y axis as the axis, so that the vertical angle of the spray barrel assembly 1 can be finally adjusted, which can be adjusted accordingly according to the verticality of the tree trunk. The vertical angle here is different from the vertical angle of the overturning mechanism. The overturning mechanism adjusts the vertical angle in the left-right direction, and the vertical angle in the front-back direction adjusted by the first pulling mechanism.

The first rotating mechanism: with reference to Fig. 5, Fig. 7 and Fig. 8, it includes a rotating drum 86, the rotating drum 86 is arranged above the rotating drum base 84, and a flange ring is radially extended on the outer peripheral side of the rotating drum 86, on the flange ring A ring gear 861 is fixed by bolts, that is, the ring gear 861 is fixed on the outer ring of the drum 86, and the ring gear 861 is engaged with a pinion 871, which is connected with the reducer 87. The inside of the drum 86 is provided with a vertical shaft 88, the vertical shaft 88 and the inwall of rotating drum 86 are provided with rotating drum supporting bearings, rotating drum supporting bearings comprise upper supporting bearings 862 and lower supporting bearings 863, and bearing supporting sleeves 865 are arranged between upper supporting bearings 862 and lower supporting bearings 863. The support bearing 862 is used to bear the pressure above the rotating drum 86 , and the lower supporting bearing 863 is carried between the rotating drum 86 and the rotating drum base 84 . The bottom of the vertical shaft 88 in this embodiment extends into the drum base 84, and a thrust bearing 864 is also provided between the bottom of the drum 86 and the drum base 84. carrying capacity. Based on the first rotating mechanism, when the reducer 87 is started, the rotating cylinder 86 can be driven to rotate around the vertical shaft 88 in a circumferential direction, that is, the rotation is realized with the Z axis as the axis, and the driving method is more efficient by using the motor drive and the pinion gear 871 in cooperation with the ring gear 861. It saves effort, and the rotation accuracy is higher, and the rotation position is more precise.

The top of the drum 86 is directly connected to the lifting mechanism 7 through the connecting flange 89, that is, in the first connecting mechanism 8, rotation around the X axis, Y axis, and Z axis can directly affect the lifting mechanism 7 to generate corresponding rotation.

As shown in Figure 8, the specific structure of lifting mechanism 7:

The lifting mechanism 7 includes an outer lifting cylinder 71 and an inner lifting cylinder 72 telescopic in the outer lifting cylinder 71, the bottom of the outer lifting cylinder 71 is fixedly connected with the connecting flange 89, and the outer lifting cylinder 71 is fixedly provided with a lifting cylinder 73. The bottom end of 73 is fixed on the outer lifting cylinder 71, and the top of the lifting cylinder 73 is connected on the inner lifting cylinder 72, that is, the lifting cylinder 73 drives the inner lifting cylinder 72 to lift in the outer lifting cylinder 71 when telescopic.

In addition, as shown in FIG. 8 to FIG. 10 , the top of the inner lifting tube 72 is provided with a sprocket bracket 74, and the sprocket bracket 74 is connected to a sprocket 741 through a pin shaft, and a chain 742 is wound around the sprocket 741. One end of the chain 742 Fixed on the side of the outer lifting tube 71, the other end of the chain 742 is connected with a chain end rod 75, and the chain end rod 75 is connected with a telescopic beam frame plate 76, and the telescopic beam frame plate 76 and the chain end rod 75 are all built into the inner lifting tube 72 Inside, the telescopic beam frame plate 76 is connected with a pulley through the rotation of the pulley pin shaft 763. In order to make the sliding more stable, the telescopic beam frame plate 76 is provided with an upper pulley 761 and a lower pulley 762. The upper pulley 761 and the lower pulley 762 each A pulley bearing 764 is arranged between the first pulley and the pulley pin shaft 763, and the side portion of the telescopic beam frame plate 76 stretches out the inner lifting tube 72 and the outer lifting tube 71, and is connected with the telescopic mechanism 5 on the front side, and the inner lifting tube 72 All are provided with the perforation that stretches out for telescoping beam frame plate 76 on the side wall of outer elevating tube 71 side walls.

When the lifting cylinder 73 is pushed out upwards, first the inner lifting tube 72 is pushed out, which is temporarily defined as the ejection stroke is H, while the inner lifting tube 72 is rising, the inner telescopic beam frame plate 76 is also rising H accordingly. In addition, The inner lifting tube 72 also drives the sprocket 741 to rise when it rises, and the sprocket 741 will drive the relative movement between the telescopic beam frame plate 76 and the inner lifting tube 72 when it rises, that is, the telescopic beam frame plate 76 is lifted relative to the inner lift tube 72. The tube 72 itself has also risen by H, plus the H that the inner lifting tube 72 itself has risen before, so the telescopic beam frame plate 76 has actually risen by 2H relative to the outer lifting tube 71 . Therefore, from the lifting effect, the lifting oil cylinder 73 rises by H to realize the effect that the telescopic beam frame plate 76 rises by 2H. This design can reduce the length requirement of the inner lifting tube 72, which can not only ensure the lifting height of the telescopic beam frame plate 76, but also ensure that the inner lifting tube 72 will not protrude too high, resulting in poor stability and large shaking. Moreover, the material cost of the inner lifting cylinder 72 can also be reduced to a certain extent.

As shown in Figures 11 to 12, the front side of the telescopic beam frame plate 76 is connected to the telescopic mechanism 5, wherein the connection between the telescopic mechanism 5 and the telescopic beam frame plate 76 is realized through the second connection mechanism 6. In this embodiment, the first The second connection mechanism 6 also includes two parts, that is, it is composed of a second pulling mechanism and a second rotating mechanism. The second pulling mechanism drives the telescopic mechanism 5 to rotate around the Y axis, and the second rotating mechanism drives the telescopic mechanism 5 to rotate around the Z axis. , it should be noted that the rotation around the Y axis and the rotation around the Z axis mentioned in this paragraph, for the sake of clarity of description, are based on the initial state in FIG. Definitions and references are made on the premise that the mechanism, turning mechanism, and first lifting mechanism are not in operation.

The second rotation mechanism: including the vertical positioning bolt 61 installed on the telescopic beam frame plate 76, the positioning bolt 61 is provided with a support sleeve column 62 outside, the bottom of the support sleeve column 62 is fixed with the telescopic beam frame plate 76, and the support sleeve column 62 top is provided with hinge cover 63, and positioning bolt 61 extends the bottom of telescopic beam frame plate 76, and the bottom of telescopic beam frame plate 76 is provided with rotating hinge clamping plate 64, and rotating hinge clamping plate 64 is sleeved on the bottom of positioning bolt 61, and rotates The hinge splint 64 can rotate around the axis of the positioning bolt 61 as the center, and the bottom of the rotating hinge splint 64 is connected with the telescopic mechanism 5, that is, the telescopic mechanism 5 can rotate around the positioning bolt 61, and drive the telescopic mechanism 5 around the positioning bolt 61 What rotate is rotating oil cylinder 65, and rotating oil cylinder 65 is not shown in Fig. 8, can refer to Fig. 16, and rotating oil cylinder 65 one ends are fixed on telescopic beam frame plate 76, and the other end is fixed on telescopic mechanism 5, when rotating oil cylinder 65 telescopic , to drive the telescopic mechanism 5 to rotate around the positioning bolt 61 .

The second lifting mechanism: comprising the telescopic beam rotating hinge 66 located between the rotating hinge splint 64 and the telescopic mechanism 5, for the convenience of installing the telescopic beam rotating hinge 66, the telescoping mechanism 5 is provided with a rotating hinge backing plate 661, utilized The telescopic beam rotates the hinge 66, and the telescopic mechanism 5 can realize rotation along the Y axis, and the second lifting cylinder 67 drives the telescopic rod 52 to realize rotation along the Y axis, and the upper end of the second lifting cylinder 67 is fixed on the hinge sleeve 63 , the lower end is fixed on the telescopic mechanism 5, and when the second lifting cylinder 67 is telescopic, the up and down swing of the telescopic mechanism 5 is realized. Its effect is similar to that of the first pulling mechanism, except that what the first pulling mechanism achieves is to lift the lifting mechanism 7 and the telescopic mechanism 5 synchronously, while the second lifting mechanism only lifts the telescopic mechanism 5 alone.

Telescopic mechanism 5: the telescopic mechanism 5 realizes that the working arm can be extended and contracted along the X-axis direction.

As shown in Figure 11 and Figure 12, the telescopic mechanism 5 specifically includes: a telescopic beam 51, which is hollow inside, and a telescopic rod 52 is arranged inside, the front end of the telescopic rod 52 is connected with a telescopic oil cylinder 53, and the other end of the telescopic oil cylinder 53 Then it is fixed on the side wall of the telescopic beam 51, and when the telescopic oil cylinder 53 stretches, it drives the telescopic rod 52 to move back and forth along the X-axis direction.

As shown in Figures 12 to 14, the front end of the telescopic mechanism 5 is connected to the spray barrel assembly 1, and the telescopic mechanism 5 and the spray barrel assembly 1 are provided with a third connection mechanism 4. The third connection mechanism 4 is mainly composed of three parts, including the first Three rotating mechanisms, a third lifting mechanism and a driving mechanism for opening and closing the spray barrel. Wherein the third rotating mechanism is to realize the rotation of the spray barrel assembly 1 around the Z axis, the third pulling mechanism is to realize the rotation of the spray barrel assembly 1 around the Y axis, and the opening and closing driving mechanism of the spray barrel is to drive the spray barrel assembly 1 The middle left half barrel 11 and the right half barrel 12 are closed or separated. It should be noted that the rotation around the Y axis and the rotation around the Z axis mentioned in this paragraph are all based on the initial state in Figure 1 for the sake of clarity. It is described on the premise that neither the above-mentioned first connecting mechanism 8 nor the second connecting mechanism 6 is in operation.

The third rotating mechanism: the front end of the telescopic rod 52 is hinged with a spray barrel rotating bracket 42 through a rotating bolt 41, the axial direction of the rotating bolt 41 is the Z-axis direction, and the spray barrel rotating bracket 42 is connected with the spray barrel assembly 1, so the spray barrel When the rotating bracket 42 rotates around the rotating bolt 41 , it realizes that the spray barrel assembly 1 rotates around the rotating bolt 41 . In the actual working environment, there is no way for the spray barrel assembly 1 to be very accurately aligned with the tree trunk, so with the help of the third rotating mechanism, automatic fine-tuning is performed at the end of the telescopic rod 52, that is, as long as the trunk is partially located in the left half barrel 11 and the right half barrel 12 can be within the fan-shaped angle range that opens, and when the left half barrel 11 and the right half barrel 12 are closed, they can rotate freely around the rotating bolt 41, eliminating the need for manual fine-tuning.

The third pulling mechanism: Different from the above-mentioned first pulling mechanism and the second pulling mechanism, the third pulling mechanism adopts a manual adjustment method, which is a fine-tuning method. It is connected to the spray barrel rotating bracket 42 and The adjustment screw 43 between the spray barrel assembly 1 is realized, and the axial direction of the adjustment screw 43 is consistent with the X-axis direction. In the present embodiment, the top of the spray barrel rotating bracket 42 extends upward with a bracket upper plate 421, and the spray barrel assembly 1 The top of the top is provided with the spray barrel connecting plate 44, the adjustment screw 43 connects the bracket upper plate 421 and the spray barrel connecting plate 44, and the spray barrel rotating bracket 42 and the spray barrel connecting plate 44 are also provided with the spray barrel rotating hinge 45, The axial direction of the rotating hinge of the spray barrel is the Y-axis direction. When the adjusting screw 43 is manually turned, the connecting plate 44 of the spray barrel can rotate around the axis of the rotating hinge 45 of the spray barrel.

The opening and closing drive mechanism of the spray barrel: in this implementation, the bottom of the spray barrel rotating support 42 extends downward with a support lower plate 422, and the opening and closing execution oil cylinder 46 is installed on the support lower plate 422, and the rear end of the opening and closing execution oil cylinder 46 is fixed. On the bracket lower plate 422, the front end of the opening and closing executive oil cylinder 46 is fixed with a pull rod positioning pin 471, and two pull rods 47 are rotatably connected to the pull rod positioning pin 471, and the front end of one of the pull rods 47 is connected to the spray barrel assembly 1 through the pull rod hinge 472. The left half barrel 11 in the spray barrel assembly 1 is hinged, and the front end of the other pull rod 47 is hinged with the right half barrel 12 in the spray barrel assembly 1 through a pull rod hinge 472 . In this embodiment, when the opening and closing execution oil cylinder 46 stretches out to the front side, the two pull rods 47 respectively push the left half barrel 11 and the right half barrel 12 to open; The pull rod 47 pulls the left half barrel 11 and the right half barrel 12 to close.

In addition, since the third rotating mechanism is free to rotate, after the spraying work is completed, the angle of the spray barrel assembly 1 is often not returned to the original position. In order to solve this problem, the third connecting mechanism 4 in this embodiment also includes a Automatic return mechanism, the automatic return mechanism comprises the spring support 48 that is fixed on the telescopic rod 52, and in the present embodiment, the spring support 48 has two, one extends toward the left side of the telescopic rod 52, and one extends toward the left side of the telescopic rod 52. Extending on the right side, a return spring 49 is connected between the end of each spring support 48 and the lower plate 422 of the support, and after the automatic return mechanism is set, in the spraying alignment stage, the left half barrel 11 touches the trunk, with the help of two The interaction of two return springs 49, wherein one return spring 49 is compressed, and the other return spring 49 is stretched, can rotate normally, and after the spraying work is completed, the compressed return spring 49 is separated under the action of elastic force. The rear end of the closing actuator cylinder 46 generates a force to reset the opening and closing actuator cylinder 46 to its initial position, that is, keep parallel to the axial direction of the telescopic rod 52. The entire flow chart can be seen in FIG. 15 .

With the help of the first connection mechanism 8 and the second connection mechanism 6, the telescopic mechanism 5 and the spray barrel assembly 1 can be rotated to the rear part 23 of the vehicle frame. At the same time, in order to better accommodate and fix the spray barrel assembly 1, in this embodiment, The rear part 23 of the vehicle frame is provided with a storage device for the storage of the spray barrel assembly 1. The storage device can be a simple placement plane, or a fixed column 322 extending upward from the rear part 23 of the vehicle frame. In this embodiment The fixed post 322 is fixed to the spray barrel assembly 1 . After fixed storage, the user can drive a motor vehicle for transportation, which is obviously more convenient for transportation after storage. And in the present embodiment, the first rotating mechanism and the second rotating mechanism are deliberately added, so that the folding rotation is realized, and the main body part of the telescoping mechanism 5 can be turned to the side of the main body of the vehicle frame, so that when the spray barrel assembly 1 is moved When it is stored at the rear part 23 of the vehicle frame, the telescopic mechanism 5 will not block the driver's field of vision, which is safe, and the folding and rotating storage method is more free in the degree of rotation.

Figure 16 and Figure 17 show two ways of turning. In Figure 16, the lifting mechanism 7 is used to lift the telescopic mechanism 5, and then the first rotating mechanism is used to rotate the telescopic mechanism 5 and the second connecting mechanism by 180 degrees. Go over the position, turn to the rear part 23 of the vehicle frame, thereby be fixed with the fixed column 322 . What is shown in Figure 17 is the way of folding and turning. In this way of turning, first use the first turning mechanism to turn the telescopic mechanism and the second connecting mechanism through 90 degrees as a whole, as shown in Figure 18, and then use the second The rotating mechanism will continue to rotate the telescopic mechanism 5 by 90 degrees, and at the same time, the spray barrel assembly 1 can continue to rotate by 90 degrees by using the third rotating mechanism. side for lower transport height and better visibility.

Spray barrel assembly 1: as shown in Figures 19 to 22, the spray barrel assembly 1 in this embodiment mainly includes: spray barrel body, spraying assembly and recovery assembly, and the spray barrel body is mainly left half barrel 11, right half barrel 12 And the middle skeleton pipe 13 between the left half barrel 11 and the right half barrel 12, the spraying component is to introduce the paint from the high-pressure delivery pipeline 311 and spray it out from the spray head 102, and the recovery component is mainly to recover the sprayed paint Return to the mixed liquid tank 31 again.

Spraying assembly: Referring to Figure 19, it includes a three-way connecting pipe 1013. The three-way connecting pipe 1013 communicates with the high-pressure delivery pipeline 311. Through the three-way connection 1013, the high-pressure delivery pipeline 311 is divided into two paths, which are respectively the upper layer delivery pipeline 1031 and the upper-layer delivery pipeline 1031. The lower delivery pipe 1032, and the nozzle 102 is also divided into an upper nozzle 1021 and a lower nozzle 1022, the upper nozzle 1021 corresponds to the upper delivery pipeline 1031, the lower nozzle 1022 corresponds to the lower delivery pipeline 1032, and the upper delivery pipeline 1031 is provided with an upper valve 1011 , the lower delivery pipeline 1032 is provided with a lower valve 1012 .

The function of setting the two valves is to prevent the paint on the upper layer from flowing down into the lower conveying pipeline 1032 under the influence of its own weight after the spraying is completed, so that when the next spraying is started, a relatively large amount of paint is stored in the lower conveying pipeline 1032, while the upper conveying pipeline 1032 Then very empty in the delivery pipe 1031. Such a hidden danger is that when the next spraying is started, the paint needs to be filled in the upper conveying pipe 1031 for a long period of time before reaching the upper nozzle 1021, and as soon as the paint in the lower conveying pipe 1032 is opened, a large amount of paint will be sprayed out, obviously. This kind of spraying operation can cause the problem of uneven spraying on the upper and lower floors, so in this embodiment, the upper conveying pipeline 1031 and the lower conveying pipeline 1032 are separately controlled, so that after the spraying, the paint in the upper conveying pipeline 1031 is not It will flow from the bottom, the amount is more evenly controlled, and finally the effect of uniform spraying in the axial direction of the trunk is achieved.

In order to make the trunk evenly sprayed in the circumferential direction, in the present embodiment, an upper spraying pipeline 1041 and a lower spraying pipeline 1042 arranged along the circumference of the barrel inner wall are arranged in the left half barrel 11 and the right half barrel 12, and the upper spraying pipeline 1041 communicates with the upper conveying pipeline 1031, and the lower spraying pipeline 1042 communicates with the lower conveying pipeline 1032, wherein, the upper spraying pipeline 1041 is distributed with more than two spiral spray nozzles at circumferential intervals, and the lower spraying pipeline 1042 is also distributed with circumferential intervals More than two spiral nozzles, when spraying, there are multiple spiral nozzles in the circumferential direction of the trunk, which makes the spraying in the circumferential direction more uniform. In addition, the upper spraying pipe 1041 and the lower spraying pipe 1042 can also play a skeleton role to strengthen the overall strength of the left half barrel 11 and the right half barrel 12. In order to further strengthen the strength, the vertical middle of the left half barrel 11 and the right half barrel 12 is also reinforced An intermediate pipeline 1023 is provided.

In the design of the upper and lower positions, the height of the upper spraying pipeline 1041 is higher than the upper conveying pipeline 1031, and the height of the lower spraying pipeline 1042 is also higher than the lower conveying pipeline 1032. The reason is to return to the corresponding upper conveying pipeline 1031 and the lower conveying pipeline 1032, instead of staying in a large amount in the upper spraying pipeline 1041 and the lower spraying pipeline 1042, so as to reduce the outflow of paint from the upper spraying head 1021 and the lower spraying head 1022.

Although the design of the above-mentioned height difference can prevent a large amount of paint residual liquid from flowing out from the upper nozzle 1021 and the lower nozzle 1022, there will still be a small amount of residual liquid flowing out from the upper nozzle 1021 and the lower nozzle 1022, and this part of the residual liquid will flow from the upper nozzle 1021 After the spray nozzle 1022 of the lower floor flows out, it will flow down along the barrel walls of the left half barrel 11 and the right half barrel 12, which will cause paint residue to flow on the barrel wall. After long-term use, these paint residues will solidify on the barrel wall surface. It is not easy to clean. In order to solve this problem, in this embodiment, a hopper 105 is provided under the respective corresponding bottoms of the upper nozzle 1021 and the lower nozzle 1022, so that the paint residue flowing out from the upper nozzle 1021 and the lower nozzle 1022 will fall into the In the hopper 105, the staff can regularly clean the hopper 105, which is very convenient. In order to simplify the representation, only part of the receiving hopper 105 is shown in FIG. 17 .

In addition, in order to prevent paint spraying from the top of the spray barrel assembly 1 during spraying operations, a top cloth 18 is provided on the top of the spray barrel assembly. The support tube 106, taking the left half barrel as an example, the top cover is also semicircular, and the arc-shaped edge is fixed in the circular support tube 106 by the fixed steel wire 182, while the straight edge is made of elastic tensile steel wire 181, utilizing the deformability of the stretched steel wire 181, when the two top coverings 18 are closed, they can well surround the trunk surface.

In order to allow the spraying operation to be completed, the paint layer on the tree trunk is relatively regular and integral. In this embodiment, an upper shielding plate 1071 is arranged above the upper sprinkler head 1021, and a lower shielding plate 1072 is arranged below the lower sprinkler head 1022, so that the paint is sprayed from the spray nozzle. When sprayed onto the tree trunk, the upper and lower edges of the coating layer on the tree trunk are neat.

Recovery component: Referring to Figure 21, the recovery component is located at the bottom of the spray barrel component 1, mainly including two parts, one part is a recovery tank 14, and the other part is a recovery cloth 15, and the recovery tank 14 is along the left half barrel 11 and the right half barrel 12 circles Set in the opposite direction, that is, close to the barrel wall, so that the paint can flow down into the recovery tank 14 along the barrel wall, and the recovery cloth 15 is laid on the entire bottom surface of the spray barrel assembly 1, and the recovery cloth 15 in this embodiment is also corresponding There are two pieces, namely the left recovery cloth and the right recovery cloth. The recovery cloth 15 is flexible and elastic. The structure of the recovery cloth 15 is similar to that of the top cloth 18, and the semicircular edge is fixed on the recovery groove 14. On the top, the edge of the straight line is supported by stretched steel wires. When the spray barrel assembly 1 is opened, the tree trunk squeezes in from the opening. When the spray barrel assembly 1 is closed, the left recovery cloth and the right recovery cloth tend to be closed. The elastic reason of stretching steel wire, after being deformed, can fit the trunk surface well and surround the trunk, so that the gap between the trunk and the recovery cloth 15 is very small, and the paint is not easy to flow out from the recovery cloth 15.

It should be noted that, in other embodiments, the recycled cloth may not be split, but may be a whole piece of elastic cloth, one side edge is connected to the left half of the barrel, and the other side edge is connected to the right half, using the elasticity of the recycled cloth, When the tree trunk squeezes the recycled cloth, the recycled cloth will tighten, which can naturally close the left half barrel and the right half barrel, reducing the force of the opening and closing actuator cylinder when closing the spray barrel assembly.

In the present embodiment, recovery tank 14 is connected with recovery pipeline 35, and recovery pump 36 is connected with recovery pipeline 35. Under the action of the recovery pump 36, the paint residual liquid in the recovery tank 14 can be recovered in the mixed liquid tank 31, reducing the waste of paint. In order to allow the paint to flow better into the recovery tank 14, in this embodiment, a tensioning steel wire 161 is fixed on the barrel walls of the left half bucket 11 and the right half bucket 12, and the other end of the tensioning steel wire 161 is connected to On the recovery cloth 15, a lifting cylinder 16 is set in the middle of the tensioning steel wire 161. When spraying, the lifting cylinder 16 is in an elongated state. At this time, the recovery cloth 15 is in an approximately horizontal state. Tighten up, the recovery cloth 15 of this moment is pulled up, and is inclined shape, and the paint on the recovery cloth 15 can flow in the recovery tank 14 automatically because of self gravity reason like this, and can not stagnate on the recovery cloth 15. It should be noted that the lifting cylinder 16 can be replaced with other telescopic actuators.

Because the spray barrel body of the present embodiment comprises the left half barrel 11 and the right half barrel 12, there are two recovery tanks 14, one is located at the bottom of the left half barrel 11, and the other is located at the bottom of the right half barrel 12. The grooves 14 are disconnected. In this embodiment, a recovery suction pipe 17 is set for each recovery groove 14, and a filter 171 is arranged at the end of each recovery suction pipe 17. In addition, each recovery suction pipe 17 is also provided with a backwater The control valve 172 and the two return water control valves 172 are combined into one road through a three-way joint 173 and connected to the recovery pipeline 35 together. In this embodiment, the two return water control valves 172 are connected to a controller through a gas pipe 174. Using the controller, the two return water control valves 172 are controlled so that when one of them is opened, the other is closed, and the two return water control valves 172 are alternately opened for use.

The design purpose of the alternate use of the two backwater control valves 172 is: because the spray barrel assembly 1 in this embodiment is made up of the left half barrel 11 and the right half barrel 12, the recovery tank 14 at the bottom of the left half barrel 11 and the right half barrel 12 They are not connected. Actually, during the spraying process, the spray barrel assembly 1 cannot remain horizontal forever. When the spray barrel assembly 1 is tilted, the recovery suction pipe 17 in the recovery tank 14 at the bottom of the left half barrel 11 may be able to touch the liquid surface , and the recovery suction pipe 17 in the recovery tank 14 at the bottom of the right half bucket 12 cannot touch the liquid surface, which causes the one side end of the three-way joint 173 to absorb the liquid, and the other side end is exposed to the air, so the recovery pump 36 It will be in idling state, long-term use will burn out the recovery pump 36, and after the alternate use is set, it can guarantee that one end must be in a closed state, and no air suction phenomenon will occur, so that it can ensure that the paint residual liquid in the recovery tank 14 will absorb well. , Protected recovery pump 36 from being damaged again.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the accompanying drawings and the description in the above specific embodiments content. Any modifications that do not depart from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims (9)

1. A tree trunk whitewashing machine with stable injection pressure, comprising a motor vehicle, the motor vehicle is connected with a working arm, the front end of the working arm is provided with a spray barrel assembly, and the spray barrel assembly includes a spray nozzle, and the motor vehicle is provided with a A mixed liquid tank for storing paint, the mixed liquid tank is connected to the spray head through a paint delivery pipeline, a pressure pump is provided on the paint delivery pipeline, and it is characterized in that a pressure storage tank is provided on the paint delivery pipeline , the pressure storage tank is provided with a pressure sensor, the pressure sensor is electrically connected to a control circuit, and the control circuit is connected to the pressure pump and controls the opening and closing of the pressure pump. 2. The tree trunk whitewashing machine with stable injection pressure according to claim 1, wherein a liquid valve is provided at the connection between the paint delivery pipeline and the nozzle, and the liquid valve is electrically connected to the control circuit. 3. The tree trunk whitewashing machine with stable spray pressure according to claim 1, characterized in that, the pressure pump is connected with a pressure pump motor, and the control circuit is configured to: when the pressure sensor is greater than the upper limit preset value, the The liquid valve is opened, and the control circuit controls the pressure pump motor to be closed; when the pressure sensor is lower than the lower limit preset value, the liquid valve is closed, and the pressure pump motor is opened. 4. The tree trunk whitewashing machine with stable spray pressure according to claim 3, characterized in that, the range of the preset upper limit is 0.3-0.6Mpa, and the preset lower limit is 0.01-0.1Mpa. 5. The trunk whitewashing machine with stable injection pressure according to claim 1, wherein the pressure pump divides the paint delivery pipeline into a high-pressure delivery pipeline and a common delivery pipeline, and the common delivery pipeline and the mixed liquid tank Directly connected, the common delivery pipeline is provided with a mixed liquid control valve. 6. The tree trunk whitening machine with stable spray pressure according to claim 5, characterized in that, the mixed liquid control valve is connected with the control circuit. 7. The trunk whitewashing machine with stable spray pressure according to any one of claims 1 to 6, characterized in that, the motor vehicle is also provided with a cleaning liquid tank, and the cleaning liquid tank is connected with a cleaning liquid pipeline, and the cleaning liquid tank is connected with a cleaning liquid pipeline. The cleaning liquid pipeline is connected with the paint conveying pipeline, and the cleaning liquid control valve is arranged on the cleaning liquid pipeline. 8. The tree trunk whitening machine with stable spray pressure according to claim 7, characterized in that, the cleaning liquid control valve is connected with the control circuit. 9. The tree trunk whitewashing machine with stable spray pressure according to any one of claims 1 to 6, characterized in that a stirring shaft is arranged at the bottom of the mixed liquid tank.