WO2013177876A1

WO2013177876A1 - Transfer equipment and method for construction machinery vehicle

Info

Publication number: WO2013177876A1
Application number: PCT/CN2012/081962
Authority: WO
Inventors: 江文; 裴辉; 刘虎; 刘仕奇; 帅国菊
Original assignee: 中联重科股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2012-05-30
Filing date: 2012-09-26
Publication date: 2013-12-05
Also published as: CN102673537B; CN102673537A

Abstract

Provided is a transfer equipment for construction machinery vehicles, used to carry the construction machinery vehicle for transfer. The construction machinery vehicle comprises a drive wheel (11), and a working wheel (12); the working wheel is disposed at the front part of the working end (13) of the construction machinery vehicle; the transfer device comprises a vehicle frame (20), a first wheel (31), and a second wheel (32); the vehicle frame is used to load the working end of the construction machinery vehicle during transfer; the first wheel and the second wheel are respectively and pivotally connected to the two sides of the vehicle frame; and under the drive of the drive wheel, the transfer device travels synchronously with the construction machinery vehicle. Also provided is a transfer method for the construction machinery vehicle: using the transfer device to bear the working end of the construction machinery vehicle, and utilizing the drive wheel of the construction machinery vehicle to enable the transfer device to travel synchronously with the construction machinery vehicle, so as to complete the transfer operation. The transfer device is of simple structure, easy operation and low cost, will not cause damage to the ground, and will not cause the mud scraper of the working wheel to fail, while significantly reducing the risk of the whole vehicle tipping during transfer.

Description

Transition device and method for construction machinery vehicle

Technical field

The present invention relates to the field of construction vehicles, and in particular to a transition device and a transition method for a construction machinery vehicle transition. Background technique

Construction machinery vehicles are widely used in the construction of roads, dams or reservoirs. Among them, the single-roller vibratory roller is used for various compaction operations to make the crushed layer permanently deformed and compacted. During the construction process, the roller needs to perform the transfer operation.

However, since these construction machinery vehicles are prone to damage roads and bridges when they are started, it is generally not allowed to directly drive on road bridges, and a specific transition device is required to perform the transition work.

The patent application No. 201010594567.8 discloses a road roller which can retract four wheels for a transition by means of a lifting device. When the roller needs to be transported by the field, the lifting device lowers the wheel to make the working wheel (ie vibrating) Wheel) Lift off the road and then drive the wheel through the wheel and the rear wheel (ie the drive wheel).

However, since the hydraulic cylinder and the wheel of the prior art roller are in the working area of the working wheel, when the roller is in working state, if there is a virtual soil on the road surface, the soil between the hydraulic cylinder and the working wheel is excessively accumulated. The scraper of the working wheel is invalid; the hydraulic cylinder causes a large impact force during driving, which shortens the service life of the cylinder and even causes damage; and because the diameter of the rear wheel is small, the working end of the roller is heavier, if the road surface is heavy Unevenness is prone to tipping; in addition, due to the design of the four transition wheels, the fuel supply to the cylinder needs to be bypassed from the main system design, and each vehicle needs to be equipped with one set, resulting in an increase in cost.

Therefore, it is necessary to provide a transition device and method for a construction machinery vehicle to facilitate and effectively The ground is transferred to the construction machinery vehicle.

Summary of the invention

The technical problem to be solved by the present invention is to provide a transition device for the transition of a construction machinery vehicle, so as to facilitate the effective transfer operation of the construction machinery vehicle.

In order to solve the above technical problem, a technical solution adopted by the present invention is: providing a transition device for carrying a construction machinery vehicle for performing a transition, the construction machinery vehicle comprising a drive wheel and a work wheel, wherein the work wheel is disposed at the a front portion of the working end of the construction machine vehicle, the transition device including a frame, a first wheel and a second wheel: the frame is used to load a working end of the construction machine vehicle during a transition; the first wheel and the second The wheels are respectively pivotally connected to the two sides of the frame, and the transition device is driven synchronously with the construction machine vehicle under the driving of the driving wheel.

a first side panel is disposed on a first side of the frame, the first wheel is pivotally connected to the frame through the first side panel, and a second side opposite to the first side is disposed on the first side panel There is a second side plate, and the second wheel is pivotally connected to the frame through the second side plate.

Wherein, the first wheel is provided with a first rim and a first bearing cavity disposed in the first rim, the first side plate is provided with a first protruding shaft, and the first protruding shaft and the first bearing cavity Cooperating to rotate the first wheel about the first protruding shaft; and the second wheel is provided with a second rim and a second bearing cavity disposed in the second rim, the second side plate is provided with a second convex The shaft, by the cooperation of the second protruding shaft and the second bearing cavity, rotates the second wheel about the second protruding shaft.

The frame includes a first support portion, a second support portion, and an engaging portion connecting the first support portion and the second support portion, the first support portion and the second support portion are spaced apart for The work wheel travels on the frame.

Wherein, the frame is provided with an anti-skid unit for preventing the work wheel from slipping when driving on the frame.

Wherein, the anti-skid unit is a non-slip steel strip or a non-slip groove.

The front end of the frame is provided with an anti-collision unit. When the transition occurs, the distance from the anti-collision unit to the rear end of the frame is greater than the distance from the front end of the working end to the rear end of the frame. The anti-collision unit is a plurality of anti-collision steel plates arranged in parallel at intervals.

The frame further includes a damper unit, the damper unit is disposed on two sides of the frame adjacent to the rear end of the frame, and elastically abuts against the bottom of the working end during the transition, to elastically lift the working end .

Wherein, the shock absorbing unit comprises a mounting seat mounted on the frame and an elastic member disposed on the mounting seat.

In order to solve the above technical problem, another technical solution adopted by the present invention is: providing a transition method of a construction machinery vehicle, the construction machinery vehicle comprising a driving wheel and a working wheel, the working wheel being disposed at a working end of the construction machinery vehicle In the front part, the construction machinery vehicle adopts the above-mentioned transition device to realize the transition, and the transition method includes:

When a transition is required, the transition device is placed in the traveling direction of the construction machine vehicle, the first wheel and the second wheel are in contact with the ground, the frame is inclined relative to the ground under the action of gravity, and the frame is away from the ground The first wheel and the first end of the second wheel are in contact with the ground;

Driving a work wheel of the construction machine vehicle from the first end of the frame to the frame, wherein the center of gravity of the frame moves forward as the work wheel advances on the frame, so that the frame The second end of the first wheel and the second wheel gradually descends, and the first end of the frame is separated from the ground and gradually rises;

When the working end of the construction machine vehicle is loaded onto the frame, the driving wheel is stopped to be driven, so that the working wheel stops rotating;

The first wheel and the second wheel are used as driven wheels, and the driving wheel drives the first wheel and the second wheel such that the transition device travels in synchronization with the construction machine to perform a transition.

Wherein, when the vehicle is unloaded after the transition, the construction machinery vehicle is placed in the reverse gear position to drive the work wheel, so that the work wheel drives down the frame, and the first frame of the frame is reversed with the work wheel The end gradually descends until it touches the ground.

The beneficial effects of the present invention are: Different from the prior art, the transition device and method of the construction machinery vehicle of the present invention drives the transition device by using the working wheel of the construction machinery vehicle and using the original driving wheel of the construction machinery vehicle. The construction machinery vehicle travels synchronously to complete the transition work. The transition device has the advantages of simple structure, convenient operation, low cost and no damage to the ground, which does not cause the work wheel scraper to fail, and can also significantly reduce the risk of the whole vehicle tipping during the transition. DRAWINGS

1 is a schematic structural view of a construction machine according to an embodiment of the present invention;

Figure 2 is a plan view of a transition device according to an embodiment of the present invention;

Figure 3 is a left side view of the transition device of Figure 2;

Figure 4 is a cross-sectional view of the S-S' viewing direction of the transition device shown in Figure 2;

Figure 5 is a schematic view showing the working principle of the transition device according to the embodiment of the present invention;

Figure 6 is a perspective view of the transfer device of the embodiment of the present invention after carrying the working end of the construction machine vehicle and

7 is a flow chart showing a method of transition of a construction machine according to an embodiment of the present invention. detailed description

Please refer to FIG. 1. FIG. 1 is a schematic structural view of a construction machine according to the present invention.

In the present invention, a construction machine vehicle refers to a vehicle that requires a specific device for a transition due to a special type of work, such as a road roller, which generally includes a drive wheel 11 and a work wheel 12, wherein the work wheel 12 is located in the project The front of the working end 13 of the mechanical vehicle.

Please refer to FIG. 2. FIG. 2 is a plan view of a transition device according to an embodiment of the present invention. In this embodiment, the transition device includes a frame 20, a first wheel 31, and a second wheel 32.

Among them, the frame 20 is used to load the working end 13 of the construction machinery vehicle during the transition. The frame 20 can be made of an alloy material including but not limited to metal or steel, and the shape thereof can be set as a flat plate, a U-shaped plate, a V-shaped plate or other structures suitable for carrying an overweight object according to actual needs, to ensure the present invention. The transition device can be used to load the working end 13 of the construction machine vehicle by the frame 20 during the transition, which is not limited herein.

In this embodiment, the frame 20 includes a first support portion 211, a second support portion 212, and a connection. The connecting portion 22 of the first supporting portion 211 and the second supporting portion 212 is connected. The first support portion 211 and the second support portion 212 are spaced apart for driving the work wheel 12 on the frame 20. As shown in FIG. 2, the frame 20 formed by the first support portion 211, the second support portion 212, and the engaging portion 22 has a U shape. The U-shaped structure saves material relative to the flat type structure under the condition that the frame 20 can support the weight of the working end 13 and is sufficient for the working wheel 12 to travel on the frame 20 without bending deformation or breakage. cost. In addition, a smooth transitional slope having a predetermined angle is formed between the first supporting portion 211 and the second supporting portion 212 and the engaging portion 22, so that the entire frame 20 is also concave, and the rotating device can be effectively controlled by the slope. The dynamic center of gravity is conducive to the loading of the working end 13 during the transition.

The two outer sides of the first support portion 211 and the second support portion 212 are respectively a first side and a second side, and a first side plate 231 is disposed on the first side of the frame 20, and the frame 20 and the first frame The second side plate 232 is disposed on the opposite side of the second side plate 232. The first side plate 231 and the second side plate 232 may be integrally formed with the frame 20 or may be welded to the frame 20, which is not limited herein.

The first wheel 31 and the second wheel 32 are pivotally connected to the two sides of the frame 20, respectively. In this embodiment, the first wheel 31 and the second wheel 32 need not be separately driven by a hydraulic cylinder or the like, and the two can only be driven synchronously by the driving wheel 11, so that the synchronous movement of the transition device and the construction machinery vehicle can be realized. Therefore, resource costs such as fuel can be effectively saved. It should be noted that the first wheel 31 and the second wheel 32 may adopt a tire-type wheel, which has a large contact area with the ground without damaging the ground; and its diameter is almost the same as the diameter of the driving wheel 11, and is subjected to a force during turning. The difference is not large, so that the deviation of the force difference between the first wheel 31 and the second wheel 32 due to the diameter of the first wheel 31 and the second wheel 32 is too large or too large, thereby reducing the risk of the vehicle tipping over.

Compared with the prior art, the present invention can realize the transition of the construction machinery vehicle through the simple structure of the frame 20, the first wheel 31 and the second wheel 32 of the transition device, thereby effectively reducing the prior art transition. The risk of uncertainty when the time comes.

3-4, FIG. 3 is a left side view of the transition device shown in FIG. 2, and FIG. 4 is a cross-sectional view taken along line SS' of the transition device of FIG. As shown in FIG. 3, the first wheel 31 is pivotally connected to the frame 20 through the first side plate 231, and the second wheel 32 is pivotally connected to the frame 20 through the second side plate 232. The first wheel 31 and the second wheel 32 are independent of each other, and the two can pass through the first side plate 231 and the second side plate 232 through the same axle to achieve coaxial connection, and realize forward and reverse synchronization and can realize differential operation when steering . In addition, it is also possible to set the following control to be asynchronously rotated about the respective axes to facilitate the turn control according to actual needs, which is not limited herein.

In this embodiment, as shown in FIG. 1, a first protruding shaft 2311 is disposed on the first side plate 231, and a second protruding shaft 2321 is disposed on the second side plate 232. In FIG. 4, correspondingly, the second wheel 32 is provided with a second rim 321 and a second bearing cavity 322 disposed in the second rim 321 . Similarly, the first wheel 31 is provided with a first rim (not shown). And a first bearing cavity (not shown) disposed in the first rim. In the present embodiment, the first wheel 311 is rotated about the first convex shaft 2311 by the cooperation of the first convex shaft 2311 and the first bearing cavity, and the second second shaft 2321 is coupled with the second bearing cavity 322 to make the second The wheel 32 rotates about the second male shaft 2321.

Referring to FIG. 2 again, in a preferred embodiment, the anti-slip unit 24 may be disposed on the frame 20, wherein the anti-slip unit 24 is disposed on the surface of the frame 20 carrying the working end 13, and the anti-slip unit 24 may be a non-slip strip. The structure of the anti-slip groove or the non-slip rubber sheet, for example, the anti-slip strip may be a non-slip steel strip or a non-slip metal strip. The two ends of the plurality of non-slip strips are respectively connected to the first support portion 211 and the second support portion 212 and are arranged equidistantly along the first support portion 211 or the second support portion 212, or The anti-slip rubber sheet of the sheet is laid on the frame 20, and during the transition, the working wheel 12 increases the friction coefficient by the action of the anti-skid unit 24 to prevent the work wheel 12 from slipping when driving on the frame 20, facilitating the construction machinery vehicle. Load the transfer device.

During the transition, since the first support portion 211 and the second support portion 212 are in abutment against the working end 13 , the wear between the frame 20 and the working end 13 is likely to be large, and if there is a bump or the like, the frame 20 may be caused. There is a danger of separation from the working end 13 due to a steel impact. To prevent this from happening, the frame 20 of the transition device of the present embodiment further includes a first damper unit 251 and a second damper unit 252, and the first damper unit 251 further includes a frame 20 mounted on the frame 20. First mount 2511 The first elastic member 2512 is disposed on the first mounting seat 2511. Similarly, the second damper unit 252 is also provided with a second mounting seat 2521 and a second elastic member 2522. The first mounting seat 2511 and the second mounting seat 2521 may be made of a larger square steel and may be fixed by welding or screwing, and the first elastic member 2512 and the second elastic member 2522 may be rubber pads. , springs, strain gauges, etc., and are connected to the first mount 2511 and the second mount 2521 by screwing, riveting or welding, respectively. Since the first damper unit 251 and the second damper unit 252 are adjacent to the rear end of the frame 20 and are disposed on the first support portion 211 and the second support portion 212 on both sides of the frame 20, both of them are in transition The bottom of the working end 13 is elastically abutted and deformed to generate a certain amount of compression, and can function as an elastic lifting work end 13, thereby effectively avoiding wear between the frame 20 and the working end 13 and the frame 20 and working. A rigid impact between the ends 13. In addition, in order to facilitate the driving wheel 12 to ride on the frame 20, the distance between the first damper unit 251 and the first damper unit 252 should be greater than the axial length of the working wheel 12 to avoid collision or squeezing of the working wheel 12. A damper unit 251 and the first damper unit 252 damage the first damper unit 251 and the first damper unit 252, even when loading is impossible.

Of course, during the transition, there may be a relative slip between the frame 20 and the work wheel 12, causing the working end 13 to pass over the frame 20 and an accident occurs. In order to avoid such an accident, the transition device of the embodiment of the present invention is further provided with an anti-collision unit 26 at the front end of the frame 20. The anti-collision unit 26 is a plurality of anti-collision steel sheets or other cushioning members provided with an elastic cushioning function provided at the front end of the engaging portion 22. In order to uniformly apply force to prevent the frame 20 from being twisted, the plurality of anti-collision units 26 may be disposed in parallel intervals. Further, when the transition occurs, the distance from the anti-collision unit 26 to the rear end of the frame 20 should be greater than the distance from the front end of the working end 13 to the rear end of the frame 20, in other words, the anti-collision unit 26 is from the frame. 20 extends outward.

Please refer to FIG. 5-7. FIG. 5 is a schematic diagram showing the working principle of the transition device according to the embodiment of the present invention. Fig. 6 is a schematic view showing the transfer device of the embodiment of the present invention carrying the working end 13 of the construction machine. Fig. 7 is a flow chart showing the method of transition of the construction machine of the present invention.

In this embodiment, the construction machinery vehicle uses the transition device mentioned in the above embodiment when the vehicle is transferred. The specific structural principle is not limited to the scope of the present invention. The arrangement of the transition device of the present invention before the transition of the construction machinery vehicle is as shown in Fig. 5, and the completion of the loading of the construction machinery vehicle working end 13 is shown in Fig. 6. The transition method of the embodiment of the present invention includes:

Step S600, when a transition is required, a transition device is placed on the traveling direction A of the construction machine vehicle, the first wheel 31 and the second wheel 32 are in contact with the ground, and the frame 20 is inclined with respect to the ground under the action of gravity, and the frame 20 The first end remote from the first wheel 31 and the second wheel 32 is in contact with the ground. In addition, before the transition, the first end of the transition device can be lifted by the forklift and the driven work of the first wheel 31 and the second wheel 32 can be realized to realize the handling of the transfer device, thereby realizing the sharing of multiple construction machinery vehicles. A transition device; in this step, in order to prevent the transition device from sliding relative to the ground, the first wheel 31 and the second wheel 32 may be caught by a pad or the like to prevent rotation thereof.

Step S601, driving the work wheel 12 of the construction machine vehicle to drive from the first end of the frame 20 to the frame 20, wherein the center of gravity of the frame 20 moves forward with the advancement of the work wheel 12 on the frame 20, so that The second end of the frame 20 near the first wheel 31 and the second wheel 32 gradually descends, and the first end of the frame 20 is separated from the ground and gradually rises. It is worth noting that, in general, since the frame 20 is concave, when the working wheel 12 travels to a certain area of the frame 20, the frame 20 is close to the first wheel 31 and the second wheel due to the shift of the center of gravity. The second end of the 32 is gradually lowered, and the first end of the frame 20 is separated from the ground and gradually rises.

Step S602, when the working end 13 of the construction machine vehicle is loaded onto the frame 20, the driving of the working wheel 12 is stopped, so that the working wheel 12 stops rotating. Wherein, the hydraulic hose connecting the brake port of the working wheel 12 is loosened by using a wrench or other tool to cut off the hydraulic system to supply oil to the brake port to stop driving the working wheel 12. If the first damper unit 251 and the second damper unit 252 are disposed on the frame 20, the first damper unit 251 and the second damper unit 252 elastically abut the bottom of the working end 13 to lift the working end. 13 and play a role in reducing the impact of rigidity.

Step S603, the first wheel 31 and the second wheel 32 are used as the driven wheels, and the driving wheel 11 drives the first wheel 31 and the second wheel 32, so that the transition device is synchronized with the construction machinery vehicle to advance Line transition.

Step S604, when the vehicle is unloaded after the transition, the construction machinery vehicle is placed in the reverse gear position, and the work wheel 12 is driven to cause the work wheel 12 to drive off the frame 20, wherein, with the reverse rotation of the work wheel 12, the frame 20 One end gradually descends until it touches the ground. Specifically, the brake port of the working wheel 12 can be connected with the hydraulic hose by a wrench and tightened, so that the hydraulic system can supply oil to the brake port of the working wheel 12. After the hose is connected, the construction machinery vehicle is started and placed in the reverse gear. Position, the construction machinery vehicle is slowly driven to the lower frame 20, and the unloading is completed.

The transition device and method of the construction machine of the present invention completes the transition operation by carrying the working end of the construction machinery vehicle and using the original drive wheel of the construction machinery vehicle to synchronize the transition device with the construction machinery vehicle, thereby completing the transition operation. The utility model has the advantages of simple structure, convenient operation, low cost and no damage to the ground, which does not cause the failure of the working wheel scraping board, and can also significantly reduce the risk of the whole vehicle tipping during the transition.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of the present invention.

Claims

Rights request

A transition device for carrying a construction machine vehicle for performing a transition, the construction machine vehicle comprising a drive wheel and a work wheel, the work wheel being disposed at a front portion of a working end of the construction machinery vehicle, characterized in that The transition device includes:

a frame for loading the working end of the construction machinery vehicle during a transition;

The first wheel and the second wheel are respectively pivotally connected to the two sides of the frame, and the transition device is driven synchronously with the construction machine vehicle under the driving of the driving wheel.

2. Apparatus according to claim 1 wherein:

a first side plate is disposed on a first side of the frame, and the first wheel is pivotally connected to the frame through the first side plate;

A second side panel is disposed on a second side of the frame opposite the first side, and the second wheel is pivotally connected to the frame by the second side panel.

3. Apparatus according to claim 2 wherein:

The first wheel is provided with a first rim and a first bearing cavity disposed in the first rim, and the first side plate is provided with a first protruding shaft, and the first protruding shaft and the first Cooperating with a bearing cavity to rotate the first wheel about the first convex axis;

The second wheel is provided with a second rim and a second bearing cavity disposed in the second rim, and the second side plate is provided with a second protruding shaft, and the second protruding shaft and the first The cooperation of the two bearing chambers causes the second wheel to rotate about the second male shaft.

4. Apparatus according to claim 1 wherein:

The frame includes a first support portion, a second support portion, and an engaging portion connecting the first support portion and the second support portion, and the first support portion and the second support portion are spaced apart, The working wheel is driven on the frame.

The device according to claim 1, wherein the frame is provided with a non-slip unit, and the anti-slip unit is configured to prevent the work wheel from slipping when driving on the frame.

6. The device according to claim 5, wherein the anti-slip unit is a non-slip steel strip or a non-slip groove.

The device according to claim 1, wherein the front end of the frame is provided with an anti-collision unit, and the distance between the anti-collision unit and the rear end of the frame is greater than the work when the transition occurs. The distance from the front end of the end to the rear end of the frame.

8. The apparatus according to claim 7, wherein: the anti-collision unit is a plurality of anti-collision steel sheets disposed at intervals.

9. The device according to claim 1, wherein: the frame further comprises a damper unit, the damper unit is disposed on both sides of the frame adjacent to the rear end of the frame, and is in a transition And elastically abutting against the bottom of the working end to elastically lift the working end.

10. Apparatus according to claim 9 wherein said shock absorbing unit comprises a mounting seat mounted on said frame and an elastic member disposed on said mounting seat.

11. A method of transition of a construction machine vehicle, the construction machine vehicle comprising a drive wheel and a work wheel, the work wheel being disposed at a front portion of a working end of the construction machine vehicle, characterized in that the construction machinery vehicle The transition device is implemented by using the transition device according to any one of claims 1 to 10, wherein the transition method comprises: When a transition is required, the transition device is placed in a traveling direction of the construction machine vehicle, the first wheel and the second wheel are in contact with the ground, and the frame is inclined relative to the ground under the action of gravity, and The frame is in contact with the ground away from the first end of the first wheel and the second wheel;

Driving a work wheel of the construction machine vehicle from the first end of the frame to the frame, wherein a center of gravity of the frame moves forward with the work wheel on the frame Moving, causing the frame to gradually descend toward the second end of the first wheel and the second wheel, the first end of the frame being separated from the ground and gradually rising;

After loading the working end of the construction machine vehicle onto the frame, stopping driving the working wheel, so that the working wheel stops rotating;

Taking the first wheel and the second wheel as driven wheels, the driving wheel drives the first wheel and the second wheel, so that the transition device is driven synchronously with the construction machine to perform Transitions.

12. The method of transition according to claim 11, wherein:

When the vehicle is unloaded after the transition, the construction machinery vehicle is placed in the reverse gear position, and the work wheel is driven to cause the work wheel to drive down the frame, wherein, as the work wheel is reversed, The first end of the frame gradually descends until it touches the ground.