JPS6032015Y2 - lift conveyor - Google Patents

Description

[Detailed description of the invention] This invention relates to a lift conveyor mainly used in civil engineering work.

Conventionally, during subway construction, building construction, industrial complex construction, etc., when carrying earth and sand generated by excavation of land to a relatively high ground, a belt with protrusions on the surface of a packet conveyor or belt conveyor is used. Conveyors etc. are used.

However, if the discharged soil to be transported is highly sticky, such as clay, the discharged soil will adhere to the packets or protrusions, making it difficult to transfer from the conveyor to a dump truck or other means of transport, or This has the disadvantage that transport of the cycle may be hindered.

Furthermore, it is difficult to sufficiently remove the discharged soil remaining in the packets and the soil adhering to the belt during conveyor operation.

In particular, a conveyor with the following structure has been proposed as having features such as easier vertical conveyance, less installation space, and no falling off of loaded items than conventional belt conveyors.

In other words, a large number of plate-shaped fins are protruded from the surface of an endless rubber belt, and these fins are placed along a normal flat belt, and the space between each fin is used as a pocket to store waste soil, which is then held between both belts and lifted. belongs to.

A belt packet conveyor has also been proposed in which packets are provided in the center of an endless belt at predetermined intervals so as to protrude to the back side of the belt, and loaded items are loaded into the four parts of the belt and conveyed vertically.

However, in these vertical conveyor belt conveyors, all the weight of the loaded material is placed on the rubber belt, so in order to maintain the strength of the belt, the belt thickness and other dimensions must be increased, and the material must be specially selected. The transport distance (lifting height) was also very limited.

Furthermore, there is a drawback that the conveyance capacity is naturally limited due to restrictions on the structure and materials.

Furthermore, when transporting highly adhesive materials such as excreted soil as described above, it is not possible to sufficiently wipe off the material adhering to uneven surfaces, which may make transport in the next transport cycle impossible or This had the disadvantage of significantly reducing conveyance capacity.

This invention aims to provide a lift conveyor that solves the above-mentioned problems, and embodiments thereof will be described in detail below as shown in the drawings.

Figure 1 is a front view explaining the principle of the structure and operation of the conveyor of the present invention. A frame 1 made of shaped steel such as channel steel or angle steel is a lift frame 2 that stands vertically.
It consists of a loading frame 3 that projects horizontally to the left at its lower part, and a transfer frame 4 that projects horizontally to the right at the top of the lift frame 2, as well as a support frame 5 and auxiliary supports as necessary. A beam etc. are provided on the base 6.

The ends of the loading frame 3 and the transfer frame 4 and the bottom of the other end of the loading frame 3 (also the bottom of the lift frame).

) Chaino wheels 7 to 9 are pivotally supported on the left and right sides of the frame, respectively, and two endless chains 11 are attached to the left and right chains 1
It is wound approximately horizontally on the loading frame 3 and transfer frame 4, and approximately vertically on the lift frame 2.

Among the wheels, the wheel 8 that is pivotally supported at the tip of the transfer frame 4 is directly or indirectly linked to a prime mover (not shown) such as a motor as a drive wheel.
1 is rotated in the right direction.

Here, from the turning point of the cheno wheels 7 and 8 of the cheno wheels 7 and 8, draw a horizontal running line to the right on the loading frame 3 as A1, a vertical ascending line along the lift frame 2 as A2, and draw a line on the transfer frame 2. The horizontal traveling line to the right is A3, and the lines A1 to A1 are the transport lines A1 to A.
3 is the transport line A, and the lower line of the transfer frame 4 on the opposite side is the vertical descending line along the lift frame 2. The line is based on the horizontal running line to the left on the back side of the loading frame 3. Assuming that B□ to B is the return line B, the running loci of the transport line A and the return line B are formed as follows.

First, on the conveyor line A, on both sides of each frame 3.2.4 and inside the chaino 11, according to the desired running trajectory, so that the chaino 11 runs horizontally on the belts A1 and A3 and vertically on the line A2 between them. A rail-shaped or band-shaped cenoguide 12 formed by bending is provided substantially continuously, and the joining portions between the lines A1 and A1 at the upper and lower ends of the line form a moderate arc.

Outside the line A of the chino guide 12 and its upper and lower ends, chino guides 13 whose upper and lower ends form the arc and form a groove-shaped space for accommodating the chino 11 are fixedly provided on both left and right sides of the frame. There is.

On the other hand, in the return line B, a cheno guide 15 having a horizontal portion and a curved portion outside the chino 11 halfway between lines a and B2 is connected to the chino 11 in the line bird.
Horizontal chino guides 16 are also provided on the outside of the chino guides 16, and chino guides 17 that partially face the lower ends of the chino guides 15 are provided on the inside of the chino 11 in the vertical portion of the line island.

These chino guides 12 to 17 may be formed by bending shaped steel such as angle steel or channel steel, and may be provided as part of the frame.

In addition, instead of the above-mentioned cheno guide, a cheno wheel (not shown) around which the chino 11 is wound from the outside or inside of the chino 11 is mounted on both sides of each frame at the line direction change point at the junction of the horizontal line and the vertical line. It can also be supported.

A packet-shaped carrier 20 as shown in FIGS. 2 and 3 is attached to the cheno 11 forming the running line as described above.
．． 25 are attached at predetermined intervals, and are pulled and driven along the traveling line as the chino 11 rotates.

The main body carrier 20 has a channel-like cross section, and is composed of a bottom plate 21 having a rectangular width that fits between the two left and right chinos 11, 11, and side plates 22, 22 standing upright and facing each other on both sides. An auxiliary carrier 25 having a channel-shaped cross section and having a bottom plate 23 and side plates 24, 24 is connected to the front so as to be bendable and extensible in a range of approximately 90° to 180°.

That is, downwardly protruding brackets 26 and 27 are attached to both lower sides of the front end of the main carrier 20 and lower sides of the rear end of the auxiliary carrier 25, respectively.
It is pivotally supported by a pin 28 at the intersection of the two.

At the same time, both ends of the pin 28 are attached to an engagement tube 29 (see FIG.
(see Figure 4).

The pin 28 and the engagement tube 29 are fixed by a split pin or the like.

A bracket 30 and a pin 31 inserted into the bracket 30 are provided in a similar structure at the lower end of the auxiliary carrier 25, and the pin 31 is inserted into a storage tube 29 protruding from the inner surface of the link part 11a of the chino 11, such as a split pin. It is fixedly fitted through.

As shown in FIGS. 3 and 4, the roller 11b of the chino 11 has a diameter larger than the width of the chain link 11a, and when the chino is running, it rotates in contact with the chino guides 12 to 17 mentioned above, and the chino The structure is such that it runs smoothly.

As a result, the auxiliary carrier 25 always follows the chino 11 over its entire length, and the main carrier 20 is driven to travel together with the chino 11 with only its front end following.

The pin insertion hole 32 of the bracket 30 at the front end of the auxiliary carrier 25 forms a long hole with a long diameter in the front-rear direction, so that the auxiliary carrier 25 can fully move in the direction of the chain at the turning point of the chain 11 or other direction change positions. An adjustment is formed to allow positional variation with the pin 31 so as to be driven.

Further, at the front end of the upper surface of the bottom plate 23 of the auxiliary carrier 25, a rectangular carrier cover 33 of a constant thickness made of flexible rubber or synthetic resin is provided, covering the entire width of the bottom plate 23 and covering the rear end of the main body carrier 20 at the rear. It is attached with such a size that it protrudes by a certain distance.

The carrier cover 33 is also fixed to the rear end of the bottom plate 21 of the carrier 20 with rivet bolts or the like.

As will be described later, this cover 33 serves to form a continuous bottom surface of the carrier even when the carrier 20, 25 bends and stretches as it travels.

At the same time, a flexible auxiliary cover 34 thicker than the carrier cover 33 is also provided on the back side of the front end of the auxiliary carrier 25.
is fixed so as to protrude forward by a certain distance, and when the front end portion of the auxiliary carrier 25 and the rear end of the next carrier main body carrier 20 overlap, the auxiliary cover 34
A gap is created between the two to prevent cargo such as gravel from falling into the conveyor device.

Note that the side plates 22 and 24 of both carriers 20 and 25 also prevent the cargo on the carriers from falling from both sides, but in the loaded state of the carriers, that is, during horizontal and vertical movement on the conveyor belt A. The width is such that at least the rear end of the side plate 24 of the auxiliary carrier 25 is accommodated within the front end of the side plate 22 of the main carrier 20, and the rear end of the side plate 24 is such that the adjacent ends of the side plates 22, 24 always overlap each other. Bottom plate 2
While it is cut at an angle close to right angle to 3,
The other side plate 22 has a shape in which the upper end projects forward at an acute angle (see FIG. 2).

In addition to the above, the bracket 26 in front of the main body carrier 20
The lower end of the guide roller 40 extends further downwardly and forwardly, and a guide roller 40 is pivoted outwardly on both sides at the end thereof.

This guide roller 40 includes a line A2 described below and a rail-shaped pressing guide 41 provided along its upper and lower ends.
Combined with this, it plays a role in keeping the main body carrier 20 horizontal when rising vertically.

That is, the pressing guide 41 has a line on which the chino 11 is placed.
The main body carrier 20 is fixed to the left and right inner sides of the lift frame 2 along the inner side of the travel trajectory of the lift frame 2, and here, the main body carrier 20 presses and rolls the guide roller 40 at the lower front end of the guide 41 against the outer surface of the guide 41, and on the one hand Since the main body carrier 20 is pivotally supported by the pin 28 to the chino 11 which is running in a straight line, the bottom plate 21 of the main body carrier 20 is raised according to the chino 11 while hanging horizontally and with a load placed thereon by these two supporting points.

Further, a pin 42 is provided protruding from the upper outer side of the rear end of the side plate 22 of the main body carrier 20, and the pin 42 also has a guide roller 4.
3 is rotatably supported.

This guide roller 43 is a rail-shaped suspension guide 44 provided on the horizontal running line A19 in the conveyance line A.
, 45, line AI.

This is to maintain the horizontal state of the main body carrier 20 traveling on the ground.

The suspension guides 44 are fixedly provided on both left and right sides of the loading frame 3 so as to extend from the outer periphery of the turning point of the chain by the wheel 7 to the position of the chain guide 14 through the line A1. The guide rollers 43 are circumscribed, and on the line A1, the rear end of the main body carrier 20 is suspended on one side, and the main body carrier 20 is suspended on the other side by the pin 28 at the lower front end.
Therefore, the main body carrier 20 runs horizontally on the line A1 while being supported at two points.

Another suspension guide 45 is curved from the upper end of line A2 to the upper part of line A2, and is attached to each side of the frame so as to pass over the line and be supported horizontally to its end. However, as in the case described above, by circumscribing the guide rollers 43 to suspend the rear end of the main body carrier 20 and supporting the front end of the main body carrier 20 on the chino 11, the main body chino 20 can travel while keeping the load loaded. I am forced to do it.

In this way, in the conveyance line A, the main body carrier 20
always stays horizontal and travels horizontally and rises vertically, so
Earth and sand, excavated soil, etc. are continuously supplied and loaded onto the loading frame 3 using another conveyor, hopper, etc., and the carrier is transported on the transport line A, and the carrier is reversed at the end of the transport frame 4. At the point, the load is allowed to fall naturally (or a soufflage bar may be further installed to wipe off the material adhering to the carrier cover 33), and the load can be transferred to a dump truck, other conveyor, or the like.

In this conveyance operation, when the carrier vertically rises as shown by the imaginary lines in FIGS. 1 and 2, the auxiliary carrier 25 faces vertically in accordance with the direction of the chino 11.
The cargo on the auxiliary frame 25 placed on the line A1 falls onto the following main body carrier 20 in the process of moving vertically upward, and most of the cargo is carried to the end by the main body carrier 20.

In addition to the guides 41, 44, 45, the transfer frame 4
A rail-shaped return guide 46 is provided on the outside of the return line B extending from the outer periphery of the tip to the rear end of the loading frame 3, and is fixed to both sides of each part of the frame. It is curved approximately corresponding to the travel trajectory, and a guide roller 43 at the rear end of the main carrier 20 is internally rolled on the inner surface of the main carrier 20, so that the main carrier 20 can be returned smoothly on the return line while maintaining its posture stably. It becomes.

As shown in FIG. 1, the guides 41, 44-46 are
In order to guide the guide roller 40 or 43 to the external or internal state, the end thereof is appropriately curved to open or close.

Further, these guides 41, 44 to 46 can also serve as a part of the frame as appropriate.

This invention produces concrete effects such as the result method constructed as described above.

(1) Compared to conventional packet conveyors, it is easier to load, transfer, and remove loaded objects attached to the conveyor, and if part of the guide roller is made of rubber, synthetic resin, etc. There is no noise generation.

(2) Compared to conventional vertical conveyor belt conveyors, the packets can be made larger and the loading and conveying capacity is significantly increased.

In other words, the load on the vertically rising part is distributed between the cheno and the guide rail via each carrier, so the cheno load is also reduced (
(The strength of the chain is low), the strength is significantly increased compared to the one that receives the load with an endless belt, and the manufacturing cost is low.

(3) Since the vertical load applied to the cheno is small, the lifting height is significantly increased compared to the one that receives the load with a rubber belt, and it is possible to vertically transport cargo even from a considerable depth of excavation site with a single device, at least as compared to conventional A lift height of 2 to 3 times can be obtained.

4. Particularly in the horizontal running section and vertical lifting section, the frame, chino, and carrier can be easily connected, making it possible to install equipment according to the needs of the construction site.

(5) Since the loading surface is always horizontal, loading is not only easy, but the carrier is stable even when the conveyor is running, so there is less chance of spillage.

(6) The structure of the part where the loaded object transfers and falls, and moreover, when the carrier is reversed in this part, the inverted carrier is completely covered with a carrier cover, so there is no chance of soil etc. falling or adhering to the back side of the carrier. There's nothing to do.

Furthermore, since the structure of this part is simple, an increase in manufacturing costs can be avoided.

(7) The overall structure is simple and the strength is sufficient, and the manufacturing cost is low.

The lift of this invention is not limited to use in civil engineering work, but can be widely used in places where vertical transportation is required, such as unloading of cargo from ships.

[Brief explanation of drawings]

Fig. 1 is a side view illustrating an example of the conveyor frame and running drive line of the present invention; FIG. 4 is a plan view showing the chino and its attached parts. 1: Frame, 2: Lift frame, 3: Loading frame, 4: Transfer frame, ? , 8, 9: Chain wheel, 1
1: Cheno, 11a: Link, 11b: Roller, 12
, 13, 15, 16, 17: Cheno guide, 20: Main body carrier, 21: Bottom plate, 24: Bottom plate, 25: Auxiliary carrier, 33: Carrier cover, 40: Pressing guide, 40.
43 Guide roller, 44, 45: Hanging guide, 46
: Return guide.

Claims (1)

[Claims for Utility Model Registration] 1. A lift frame having a constant height, with a loading frame and a horizontal loading frame and a transport frame provided at the upper and lower ends, respectively, each of which has a cheno wheel pivotally supported at each key point. Wrap endless Che 7 around the Cheno wheel,
A chain guide that forms the travel locus of the chain 7 and a rail-shaped guide are provided in close proximity to the chain guide, and a number of carriers formed by connecting the main carrier and the auxiliary carrier so as to be flexible and extendable are sequentially connected to the chain 7. At the same time, a guide roller pivotally supported on the carrier is brought into contact with and guided by the guide so that the cargo loading bottom plate of the main carrier is always kept horizontal or nearly horizontal when cargo is loaded;
The auxiliary carrier is structured so that it always runs along the chain.
A lift conveyor comprising a flexible carrier cover whose front end is fixed to the bottom plate of the auxiliary carrier and whose rear end is fixed to the bottom plate of the main carrier. 2. Guide rollers are provided at the lower front end and upper rear end of the main carrier, respectively, and are attached as guides to the inside of the vertical lifting drive portion of the check 7 so as to circumscribe the guide rollers at the lower front end when the carrier vertically rises. Claims for registration of a utility model comprising a pressing guide and a hanging guide attached to the upper side of the horizontally traveling portion of the check 7 so as to circumscribe the guide roller at the upper rear end when the carrier travels horizontally. The lift conveyor according to paragraph 1.