JPH0469151A - Polishing and cleaning machine for floor face - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a floor polishing and cleaning machine for repairing rain damage and floor stains on concrete floors, and particularly relates to This invention relates to a floor polishing and cleaning machine that can perform polishing and cleaning operations at the same time.

(Conventional technology) Conventionally, floor polishing and cleaning work for rain-damaged concrete floor repair work and floor stain repair work has been done by manually polishing the floor surface using a polisher equipped with a grindstone, and then using a , the polishing slag is collected and disposed of.

(Problems to be Solved by the Invention) In the conventional floor surface polishing and cleaning method, the floor surface is polished manually, so it is difficult to uniformly polish various parts of a wide floor surface, and polishing spots may occur. This is also undesirable from this point of view, as it requires long hours of work under unfavorable working conditions in which polishing slag and dust are scattered.

In addition, cleaning work must be performed after the polishing work, and this cleaning work is also a long time work under poor working conditions, so there is a need for labor saving and improvement of the working environment.

The present invention was developed in view of the current situation, and enables floor polishing and floor cleaning to be performed uniformly and completely.
The purpose of the present invention is to provide a floor polishing and cleaning machine that can save labor and improve the working environment.

[Structure of the invention]

(Means for Solving the Problems) As a means for achieving the above object, the present invention drives a rotary disk that is attached to the front part of a self-propelled vehicle so that it can be raised and lowered and that has a grindstone set on its lower surface to rotate around a vertical axis. A polishing device that polishes the concrete floor surface, and a sweeping brush that is attached to the rear of the polishing device on a self-propelled vehicle so that it can be raised and lowered, and that is rotated around a horizontal axis perpendicular to the traveling direction of the self-propelled vehicle, are used to polish the polishing ring. The present invention is characterized in that it is provided with a cleaning device for sweeping up, and a dust collector mounted on a self-propelled vehicle to suction and collect small polishing rings and dust generated by the polishing device and the cleaning device.

(Function) In the floor surface polishing and cleaning machine according to the present invention, the rotating disk is driven to rotate around the vertical axis, and the polishing device is lowered to bring the grindstone on the lower surface of the rotating disk into contact with the concrete floor surface. Drive a self-propelled vehicle. As a result, the concrete floor surface is polished by the width of the polishing device.

Small particles and dust on the polishing ring generated by polishing are sucked directly from the polishing device into the dust collector and collected, but the remaining part is
left on the concrete floor. This polishing ring is swept up and collected by a sweeping brush of a cleaning device located at the rear of the polishing device. Therefore, simply by driving the self-propelled vehicle along the concrete floor surface, floor polishing and floor cleaning can be performed simultaneously and uniformly. In addition, small polishing rings and dust generated during polishing and cleaning are sucked into the dust collector, so they are not scattered to the surroundings, making it possible to improve the working environment.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing an example of a floor polishing and cleaning machine according to the present invention, and FIG. 2 is a plan view thereof. The self-propelled vehicle 2 has a three-wheel structure including a drive wheel 4 at the rear of the two-wheel structure, and a drive wheel 4 at the rear of the two-wheel structure.

This self-propelled vehicle 2 is provided with a polishing device 5 at its front end and a cleaning device 6 between the steering wheel 3 and the driving wheel 4. While the floor surface 7 is polished, the concrete floor surface 7 is also cleaned by the cleaning device 6. The polishing ring produced by polishing is then sucked and collected by a dust collector 8 mounted on the self-propelled vehicle 2.

As shown in FIGS. 3 to 5, the polishing device 5 includes a support frame 9 having a generally pentagonal planar shape, and a horizontal upper cover 10g and a horizontal upper cover 10g are provided at the peripheral edge of the support frame 9. ,
A dustproof cover 10 consisting of a side cover 10b made of, for example, rubber and hanging from the periphery of the upper cover 10a and whose lower end contacts the concrete floor surface 7 is attached to prevent the polishing ring and dust generated by polishing from scattering around. It has become.

As particularly shown in FIG. 5, on the lower surface side of the support frame 9, a support substrate 12 is fixedly provided, which constitutes a gear chamber 11 with a sealed structure between it and the support frame 9. A drive shaft 14 and a driven shaft 15, each having a grindstone set 13 attached to its lower end, are supported on both front sides of the support substrate 12 via bearings 17 so as to be rotatable around a vertical axis. Further, as shown in FIG. 4, a driven shaft 16 is vertically provided at the rear of the center of the support board 12, and a drive gear 18, a driven gear 19, and Central driven gear 20
are installed respectively.

As shown in FIGS. 3 and 5, the drive gear 18 is connected via two intermediate gears 24.25 having shafts 21.22 rotatably supported on the support substrate 12 via bearings 23. , are interlocked with the driven gear 19, and are also interlocked with the central driven gear 20 via an intermediate gear 24. The drive gear 18 has its drive shaft 14 connected to the support frame 9.
It is rotated clockwise in FIG. 3 by a hydraulic motor 26 installed above. As a result, the driven gear 19 is driven to rotate counterclockwise in FIG. 3, and the central driven gear 20 is driven to rotate clockwise in FIG. 3.

As shown in FIGS. 4 to 6, each grindstone set 13 includes a rotating disk 27 fixed to the lower end of the shaft 14, 15, 16, and a grindstone mounting plate 28 attached to the lower surface of the rotating disk 27. The set consists of, for example, six square-shaped grindstones 29 that are detachably and replaceably attached to each other, and the diameter of each of these grindstones 13 is approximately the same as the width of the self-propelled vehicle 2, as shown in FIG. The dimensions are set so that the area can be completely polished in one run.

On the upper surface side of the support frame 9, as shown in FIGS. 4 and 5, the horizontal axis 30g of the cross-shaped member 30, in which the horizontal axis 30a and the vertical axis 30b integrally intersect in a cross shape, is attached to a bracket 31. The vertical shaft 30b of the cross-shaped member 30 is pivotally connected to the upper support frame 33 via a support plate 32.

This upper support shaft frame 33 is connected to a support frame 34 fixed to the vehicle body portion 2a of the self-propelled vehicle 2 via a parallel link 35, and the polishing device 5 is moved horizontally by driving an elevating drive device 36. It is designed to rise and fall while maintaining its condition.

The elevating drive device t36 includes a swinging arm 39 having a generally V shape that is pivotally connected via a support shaft 38 to a support bracket 37 fixed to the vehicle body 2a of the self-propelled vehicle 2, and a swinging arm 39 whose lower end is pivotally connected to the upper support frame 33. and a connecting arm 40 whose upper end is pivotally connected to one tip of the swing arm 39, whose base end is pivoted to the vehicle body 2a, and whose tip is pivoted to the other tip of the swing arm 39. The hydraulic cylinder 41 has a rod 41a. The polishing device 5 is driven up and down by the expansion and contraction operation of the hydraulic cylinder 41.

The upper support frame 33 also includes a contact rod 43 whose lower end 43a abuts against the upper surface of the bracket 3-1 and whose lower end 43a is prevented from being removed by a contact nut 42, as shown in FIG. As shown, contact rods 45 are provided, each of which is prevented from being removed by a contact nut 44 and whose lower end 45a abuts against the upper surface of the bracket 31. Posture-holding springs 46 and 47 for holding the polishing device 5 in a substantially horizontal posture are attached to the contact rods 43 and 45, respectively.

On the other hand, as shown in FIGS. 7 and 8, the cleaning device 6 includes a horizontally elongated brush chamber 48 that opens forward and downward. A sweeping brush 50 is arranged to be detachably and replaceably attached to a horizontal rotating shaft 49 perpendicular to the direction. The sweep-up brush 5o is rotated clockwise in FIG. 8 by a hydraulic motor 51 attached to the outer surface of one side of the brush chamber 48.

As shown in FIGS. 7 and 8, a bracket 52 is fixed to the upper part of the brush chamber 48, and this bracket 52 is attached to the body portion 2a of the self-propelled vehicle 2 via a parallel link 53. By driving an elevating drive device 54, which will be described later, it is raised and lowered while maintaining the horizontal state.

That is, the parallel link 53 at the front in the traveling direction of the self-propelled vehicle 2
The upper end is pivotally attached to a bracket 55 attached to the vehicle body part 2a, and the upper end of the parallel link 53 at the rear in the running direction is rotatably attached to a pivot shaft 57 attached to the vehicle body part 2a via a fulcrum pin 56. is fixed. On the other hand, the elevating drive device 54 includes a hydraulic cylinder 58 whose base end is pivotally connected to the vehicle body portion 2a with a pin 58b.
The tip of a is pivotally attached to the lower end of a drive arm 59 whose upper end is fixed to the rotation shaft 57. The expansion and contraction of the hydraulic cylinder 58 causes the rotating shaft 57 to rotate forward and backward via the drive arm 59, thereby rotating the parallel link 53 and moving the brush chamber 48 up and down.

A box-shaped hopper 60 that opens only to the rear is disposed at the front opening of the brush chamber 48.
A plurality of support members 61 having rotatable support rollers 61a are arranged on the upper part of the hopper 60. is supported. As shown in FIG. 7, the hopper 60 is pulled out toward the handle 63 using the support rail 62 as a guide by grasping and pulling the handle 63 provided at the negative end. The slag can be disposed of. This hopper 60 is connected to the brush chamber 48 by locking devices 64 provided on both sides.
It is connected to and cannot normally be pulled out. Further, as shown in FIG. 8, flaps 65 made of rubber, for example, are attached to the lower edge of the opening of the hopper 60 and the lower edge of the brush chamber 48, respectively, so that the polishing slag swept up by the sweep-up brush 50 can be removed. This prevents dust from scattering outside.

As shown in FIG. 9, the dust collector 8 includes a negative pressure chamber 66 in which a dust collection box 67 is retractably housed at the lower end. It is connected to the inside of the dustproof cover 10 of the polishing device 5, and also connected to the inside of the brush chamber 48 of the cleaning device 6 via a vacuum hose 69.

This negative pressure chamber 66 is also connected to the suction side of a suction blower 71 via a filter 70, as shown in FIG.
The inside of the negative pressure chamber 66 becomes negative pressure by activation of the suction blower 71, and small polishing slag and dust are sucked through the vacuum hoses 68 and 69. The polishing slag and dust sucked into the negative pressure chamber 66 are collected in the dust collection box 67 due to free fall, and the suction blower 7
Exhaust gas from 1 is discharged to the outside via an exhaust lower 2.

In FIG. 3, reference numeral 73 indicates an air intake port provided in the upper cover 10a of the dustproof cover 10 in order to improve dust collection efficiency.

Next, the operation of this embodiment will be explained.

When polishing and cleaning the concrete floor surface 7, first the hydraulic motor 26 is started to rotate the grindstone set 13, and the elevating drive device 36 is started to bring the rotating grindstone set 13 into contact with the concrete floor surface 7.

At the same time, the hydraulic motor 51 is started to rotate the sweeping brush 50, and the lifting drive device 54 is started to move the rotating sweeping brush 50 to the concrete floor surface 7.
contact with.

Furthermore, at the same time, the suction blower 71 is activated to make the inside of the negative pressure chamber 66 negative pressure.

By the way, as shown in FIGS. 4 and 5, the upper support frame 33 of the polishing device 5 is provided with abutment rods 43 and 45 equipped with posture holding springs 46 and 47.
The support frame 9 is held in a substantially horizontal state;
are supported so as to be tiltable back and forth and left and right against the posture holding springs 46 and 47, so each grinding wheel set 13 contacts the concrete floor surface 7 evenly and polishes uniformly and without unevenness. . Then, when the self-propelled vehicle 2 is driven in this state, the floor surface is polished in a band shape with the width of the polishing device 5.

Small polishing slag and dust generated by polishing the concrete floor surface 7 are thrown up by the rotation of the grindstone set 13, but since the periphery of the support frame 9 is surrounded by the dustproof cover 10, they are not scattered to the outside. vacuum hose 6
8 and is collected by the dust collector 8. The remaining portion is left on the concrete floor surface 7.

The polishing slag left on the concrete floor surface 7 is removed by the polishing device 5.
is swept up by the sweeping brush 50 of the cleaning device 6 located at the rear of the cleaning device 6, and collected in the hopper 60. Small abrasive slag and dust generated during sweeping are sent to the dust collector via the vacuum hose 69. It is collected at 8.

In this way, the polishing device 5, the cleaning device 6 and the dust collector 8
The concrete floor surface 7 can be polished and cleaned simply by running the self-propelled vehicle 2 in a state where the concrete floor surface 7 is activated, and it is possible to greatly save labor.

Moreover, since each grindstone set 13 of the polishing device 5 comes into even contact with the concrete floor surface 7, it is possible to uniformly polish the floor surface without polishing spots.

Further, since the area around the polishing device 5 and the cleaning device 6 are surrounded by the dustproof cover 10 and the flap 65, there is no possibility that small polishing slag and dust thrown up during polishing or cleaning will be scattered outside. Also, small polishing slag and dust sucked into the dust collector 8 are prevented from dissipating to the outside by the filter 70 at the outlet of the negative pressure chamber 66, and the working environment can be greatly improved.

〔Effect of the invention〕

As explained above, the present invention provides a self-propelled vehicle with a polishing device for polishing a concrete floor surface, a cleaning device for sweeping up polishing slag, and a dust collector for sucking and collecting small polishing slag and dust. Therefore, polishing and cleaning of the concrete floor surface can be completed simply by driving the self-propelled vehicle, which greatly saves labor and enables uniform and complete polishing and cleaning to be performed in a short time.

Further, since small polishing slag and dust generated by polishing are sucked into the dust collector, the polishing slag and dust do not fly up, and the working environment can be greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a floor polishing and cleaning machine according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is an enlarged plan view of the polishing device, and FIG. Figure 5 is a sectional view taken along line v-v in Figure 3, Figure 6 is a configuration diagram of the whetstone set seen from above, Figure 7 is an enlarged plan view of the cleaning device, 8
The figure is a sectional view taken along the line ■--■ in FIG. 7, and FIG. 9 is a configuration diagram of the dust collector. 1... Floor polishing and cleaning machine, 2... Self-propelled vehicle, 5...
Polishing device, 6... Cleaning device, 7... Concrete floor surface, 8... Dust collector, 10... Dust-proof cover, 13.
... Grinding wheel set, 26.51 ... Hydraulic motor, 36.
54... Lifting device, 48... Brush room, 50...
Sweeping brush, 60... hopper, 65... flap, 66... negative pressure chamber, 67... dust collection box, 68.
69...Vacuum hose, 71...Suction blower. Applicant's agent Sato - Male%2 Figure 3

Claims (1)

[Claims] A polishing device for polishing a concrete floor surface, which is attached to the front of a self-propelled vehicle so that it can be raised and lowered, and includes a rotating disk that has a grindstone set on the underside and can rotate around a vertical axis, and its rotational drive device. The device is attached to the rear of the polishing device on a self-propelled vehicle so that it can be raised and lowered.
It is equipped with a sweeping brush that is rotated around a horizontal axis perpendicular to the traveling direction of the self-propelled vehicle, and this sweeping brush allows
The present invention is characterized by comprising: a cleaning device that sweeps up polishing slag; and a dust collector that is mounted on a self-propelled vehicle and that sucks and collects small polishing slag and dust generated by the polishing device and the cleaning device. Floor polishing cleaning machine.