Road and bridge maintenance and repair device

Abstract

The utility model discloses a road and bridge maintenance and repair device which comprises a repair vehicle, the repair vehicle comprises a vehicle frame, a movable rod and a pressing plate are arranged on the vehicle frame, a supporting plate is arranged on the vehicle frame, a driving shaft, a driven shaft and a movable half gear are arranged on the supporting plate, and a movable rack matched with the movable half gear is arranged on the movable rod. A driving motor and a motor shaft are arranged on the supporting plate, an anti-overload device is arranged between the motor shaft and the driving shaft and comprises an adjusting groove, a U-shaped ring is arranged on the adjusting groove in a sliding mode, an overload groove is formed in the motor shaft in the circumferential direction, and an adjusting block, an adjusting spring and an extrusion block are arranged in the adjusting groove; a movable half gear drives a movable rack and a movable rod to move in the vertical direction, when the movable rack is separated from the movable gear, the movable rod and a pressing plate do free falling motion in the vertical direction, then repairing asphalt is tamped, the extrusion force of an extrusion block on a U-shaped ring is adjusted, and then the bearing capacity of connection of a motor shaft and a driving shaft is adjusted; and motor damage caused by motor overload is prevented.

Description

Technical Field

[0001] This utility model relates to the field of road maintenance technology, and more specifically, to a road and bridge maintenance and repair device. Background Technology

[0002] Road and bridge maintenance and repair equipment is the core equipment in the field of road and bridge maintenance. It is mainly used for road surface crack filling, pothole repair and structural reinforcement. At present, maintenance equipment on the market is mainly divided into two categories: manual operation equipment and semi-automatic machinery. They generally suffer from problems such as low efficiency, poor accuracy and insufficient adaptability.

[0003] Traditional manual repair methods rely on manual filling of asphalt or concrete. The repair quality is significantly affected by the skill level of the workers, and the work efficiency is low (a single pothole repair takes 30-50 minutes). In busy traffic sections, it is easy to cause secondary congestion. At the same time, there is a shortage of asphalt materials for repair. Traditional equipment lacks a gravity acceleration impact mechanism and cannot achieve instantaneous high-energy impact. When the tamping hammer gets stuck or encounters a hard object, the instantaneous torque of the motor increases sharply, which can easily cause the winding to burn out and affect the service life of the repair vehicle. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a road and bridge maintenance and repair device to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a road and bridge maintenance and repair device, comprising a repair vehicle, the repair vehicle comprising a frame, a movable rod provided on the frame, a pressure plate provided at the bottom of the movable rod, a support plate provided on the frame, a drive shaft and a driven shaft provided on the support plate, a movable half gear provided on the drive shaft and the driven shaft, a movable rack provided on the movable rod that cooperates with the movable half gear, a drive motor and a motor shaft provided on the support plate, an overload protection device provided between the motor shaft and the drive shaft, the overload protection device comprising an adjustment groove, the adjustment groove being circumferentially disposed within the drive shaft, a U-shaped ring slidably disposed on the adjustment groove, an overload groove being circumferentially disposed on the motor shaft, an adjustment block provided within the adjustment groove, an adjustment spring provided on the adjustment block, and a compression block cooperating with the U-shaped ring being disposed at the other end of the adjustment spring.

[0008] The present invention is further configured such that a transmission gear is provided between the driving shaft and the driven shaft to realize the synchronous rotation of the driving wheel and the driven wheel.

[0009] The present invention is further configured such that the drive shaft is provided with a sliding groove, and the adjusting block and the pressing block are provided with sliding blocks that cooperate with the sliding groove to restrict the movement direction of the pressing block and the adjusting block.

[0010] The present invention is further configured such that an adjusting screw is rotatably provided on the drive shaft, and the adjusting screw is threadedly connected to the adjusting block, so that the position of the adjusting block can be easily adjusted by adjusting the adjusting screw.

[0011] The present invention is further configured such that an adjusting gear is provided on the adjusting screw, and an adjusting gear ring is rotatably provided on the drive shaft. The adjusting gear ring drives the adjusting gear to rotate, thereby driving the adjusting screw to rotate.

[0012] The present invention is further provided that the outer circumferential surface of the adjusting tooth ring is provided with anti-slip texture, which facilitates the rotation of the adjusting tooth ring.

[0013] The present invention is further configured such that the frame is equipped with a hydraulic cylinder and a stabilizing plate, which improves the compaction of the repair vehicle.

[0014] The present invention is further configured such that a support frame is provided between the moving rod and the pressure plate, and a counterweight is provided on the support frame to facilitate adjustment of the weight of the pressure plate and the compaction effect.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a road and bridge maintenance and repair device, which has the following features:

[0017] Beneficial effects:

[0018] 1. The drive motor drives the drive shaft to rotate, and through the synchronous transmission of the transmission gears, it drives the two moving half gears to rotate synchronously in opposite directions. The moving half gears drive the moving rack and moving rod to move vertically. When the moving rack disengages from the moving gear, the moving rod and pressure plate undergo free fall vertically, thereby compacting the repaired asphalt and improving the repair effect.

[0019] 2. The U-shaped ring and the overload groove facilitate the limiting connection between the motor shaft and the drive shaft. The adjusting gear ring drives the adjusting gear to rotate, which in turn drives the adjusting screw to rotate. The adjusting screw adjusts the position of the adjusting block, adjusts the deformation and elasticity of the adjusting spring, and adjusts the squeezing force of the squeezing block on the U-shaped ring. This adjusts the load-bearing capacity of the connection between the motor shaft and the drive shaft, preventing the motor from being damaged by overload.

[0020] 3. By setting up hydraulic cylinders and stabilizing plates, it is easy to provide stable support for the repair vehicle during operation. By setting up support frames and counterweights, the compaction effect is improved. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a road and bridge maintenance and repair device according to the present invention;

[0022] Figure 2 This is a schematic diagram of the meshing structure of the moving rod, pressure plate, support plate, drive shaft, driven shaft, moving half gear and moving rack in this utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the overload protection device in this utility model;

[0024] Figure 4 This is a cross-sectional view of the overload protection device in this utility model;

[0025] Figure 5 This is a cross-sectional view of the overload protection device of this utility model from another angle.

[0026] In the diagram: 1. Repair vehicle; 2. Frame; 3. Moving rod; 4. Pressure plate; 5. Support plate; 6. Drive shaft; 7. Driven shaft; 8. Moving half gear; 9. Moving rack; 10. Drive motor; 11. Motor shaft; 12. Adjusting groove; 13. U-ring; 14. Overload groove; 15. Adjusting block; 16. Adjusting spring; 17. Pressing block; 18. Transmission gear; 19. Sliding groove; 20. Sliding block; 21. Adjusting screw; 22. Adjusting gear; 23. Adjusting gear ring; 24. Anti-slip texture; 25. Hydraulic cylinder; 26. Stabilizing plate; 27. Support frame; 28. Counterweight. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A road and bridge maintenance and repair device includes a repair vehicle 1. The repair vehicle 1 includes a frame 2, a movable rod 3 mounted on the frame 2, a pressure plate 4 at the bottom of the movable rod 3, a support plate 5 mounted on the frame 2, a drive shaft 6 and a driven shaft 7 mounted on the support plate 5, movable half gears 8 mounted on the drive shaft 6 and the driven shaft 7, a movable rack 9 on the movable rod 3 that meshes with the movable half gears 8, a drive motor 10 and a motor shaft 11 mounted on the support plate 5, and an overload protection device between the motor shaft 11 and the drive shaft 6. The load-bearing device includes an adjustment groove 12, which is circumferentially arranged inside the drive shaft 6. A U-shaped ring 13 is slidably arranged on the adjustment groove 12. An overload groove 14 is circumferentially arranged on the motor shaft 11. An adjustment block 15 is arranged inside the adjustment groove 12. An adjustment spring 16 is arranged on the adjustment block 15. An extrusion block 17 that cooperates with the U-shaped ring 13 is arranged at the other end of the adjustment spring 16. A hydraulic cylinder 25 and a stabilizing plate 26 are arranged on the frame 2. A support frame 27 is arranged between the moving rod 3 and the pressure plate 4. A counterweight block 28 is arranged on the support frame 27.

[0031] In this embodiment, asphalt is filled into the defects in the road and bridge asphalt, and then the asphalt needs to be compacted. The vehicle frame 2 is moved to the asphalt repair position, and the stabilizing plate 26 is driven by the hydraulic cylinder 25 to provide stable support for the vehicle frame 2, which improves the stability during the compaction work. The weight of the pressure plate 4 is adjusted by adjusting the number of counterweights 28. Then, the drive motor 10 is started, and the motor shaft 11 of the drive motor 10 drives the drive shaft 6 to rotate. Through the transmission action of the transmission gear 18, the driven shaft 7 rotates synchronously. The moving half gear 8 drives the moving rack 9 and the moving rod 3 to move upward. When the moving half gear When the teeth of the moving rack 8 and the moving rod 9 disengage, the moving rack 9 and the moving rod 3, under the gravity of the pressure plate 4 and the counterweight 28, fall onto the ground to compact the asphalt. After the moving half gear 8 rotates half a turn, it meshes with the teeth of the moving rack 9 again, continuing to drive the moving rack 9 and the moving rod 3 to move upward and continue to compact the asphalt. This process is repeated to facilitate the compaction of the repaired asphalt. After compaction is completed, the counterweight 28 is removed, and the relative position of the moving rod 3 is fixed by anchor bolts and other limiting devices to reduce the wear between the moving rack 9 and the moving half gear 8 when the repair vehicle 1 is not in operation.

[0032] Please see Figures 3-5 As one embodiment of the overload protection device: a transmission gear 18 is provided between the drive shaft 6 and the driven shaft 7, a sliding groove 19 is provided on the drive shaft 6, and sliding blocks 20 that cooperate with the sliding groove 19 are provided on the adjusting block 15 and the pressing block 17. An adjusting screw 21 is rotatably provided on the drive shaft 6, and the adjusting screw 21 is threadedly connected to the adjusting block 15. An adjusting gear 22 is provided on the adjusting screw 21, and an adjusting gear ring 23 is rotatably provided on the drive shaft 6. The outer circumferential surface of the adjusting gear ring 23 is provided with anti-slip texture 24.

[0033] More specifically, based on the power of the drive motor 10, the adjusting gear ring 23 is rotated via the anti-slip texture 24. The adjusting gear ring 23 drives the adjusting gear 22 to rotate, which in turn drives the adjusting screw 21 to rotate. The adjusting screw 21 then drives the adjusting block 15 to move. The adjusting block 15, through the cooperation of the sliding block 20 and the sliding groove 19, can only move along the axial direction of the adjusting screw 21. The movement of the adjusting block 15 compresses the adjusting spring 16, changing the deformation of the adjusting spring 16 and the elastic force given to the compression block 17, thereby adjusting the compression force of the compression block 17 on the U-shaped ring 13. Through the snap-fit ​​cooperation between the adjusting block 15 and the overload groove 14, the drive shaft 6 and the motor shaft 11 are connected. When the drive motor 10 is overloaded, the U-shaped ring 13 disengages from the overload groove 14 and compresses the compression block 17 outward. The compression block 17 further compresses the adjusting spring 16, thus reducing the weight of the counterweight block 28, thereby protecting the motor shaft 11 of the drive motor 10 and preventing damage to the drive motor 10 due to overload.

[0034] In summary, during the use or operation of the overall equipment: Asphalt is filled into defects in the road and bridge asphalt, followed by compaction. The chassis 2 is moved to the asphalt repair position. The hydraulic cylinder 25 drives the stabilizing plate 26 to provide stable support for the chassis 2, improving stability during compaction. The weight of the pressure plate 4 is adjusted by changing the number of counterweights 28. Then, the drive motor 10 is started. The motor shaft 11 of the drive motor 10 drives the drive shaft 6 to rotate. Through the transmission gear 18, the driven shaft 7 rotates synchronously. The moving half gear 8 drives the moving rack 9 and the moving rod 3 to move upwards. When the teeth of the moving half gear 8 and the moving rack 9 disengage, the moving rack 9 and the moving rod 3, under the weight of the pressure plate 4 and the counterweight 28, fall onto the ground to compact the asphalt. After the moving half gear 8 rotates half a turn, it meshes with the teeth of the moving rack 9 again, continuing to drive the moving rack 9 and the moving rod 3 upward to continue compacting the asphalt. This process is repeated to facilitate the compaction of the repaired asphalt. After compaction is completed, the counterweight 28 is removed, and the relative position of the moving rod 3 is fixed by anchor bolts and other limiting devices to reduce wear between the moving rack 9 and the moving half gear 8 when the repair vehicle 1 is not in operation.

[0035] According to the power of the drive motor 10, the adjusting gear ring 23 is rotated through the anti-slip texture 24. The adjusting gear ring 23 drives the adjusting gear 22 to rotate, and the adjusting gear 22 drives the adjusting screw 21 to rotate. The adjusting screw 21 drives the adjusting block 15 to move. The adjusting block 15 can only move along the axial direction of the adjusting screw 21 through the cooperation of the sliding block 20 and the sliding groove 19. The movement of the adjusting block 15 compresses the adjusting spring 16, changes the deformation of the adjusting spring 16 and the elastic force given to the compression block 17, and thus adjusts the compression force of the compression block 17 on the U-shaped ring 13. The drive shaft 6 and the motor shaft 11 are connected through the snap-fit ​​cooperation between the adjusting block 15 and the overload groove 14. When the drive motor 10 is overloaded, the U-shaped ring 13 disengages from the overload groove 14 and compresses the compression block 17 outward. The compression block 17 further compresses the adjusting spring 16, thereby reducing the weight of the counterweight block 28, thus protecting the motor shaft 11 of the drive motor 10 and preventing the drive motor 10 from being damaged by overload.

[0036] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0037] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0038] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their electrical connection relationships and specific circuit structures will not be elaborated here.

[0039] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

Claims

1. A road and bridge maintenance and repair device, comprising a repair vehicle (1), characterized in that: The repair vehicle (1) includes a frame (2), a movable rod (3) on the frame (2), a pressure plate (4) at the bottom of the movable rod (3), a support plate (5) on the frame (2), a drive shaft (6) and a driven shaft (7) on the support plate (5), a movable half gear (8) on the drive shaft (6) and the driven shaft (7), a movable rack (9) that meshes with the movable half gear (8) on the movable rod (3), a drive motor (10) and a motor shaft (11) on the support plate (5), and the motor... An overload protection device is provided between the shaft (11) and the drive shaft (6). The overload protection device includes an adjustment groove (12), which is circumferentially arranged in the drive shaft (6). A U-shaped ring (13) is slidably provided on the adjustment groove (12). An overload groove (14) is circumferentially provided on the motor shaft (11). An adjustment block (15) is provided in the adjustment groove (12). An adjustment spring (16) is provided on the adjustment block (15). An extrusion block (17) that cooperates with the U-shaped ring (13) is provided at the other end of the adjustment spring (16).

2. The road and bridge maintenance and repair device according to claim 1, characterized in that: Both the drive shaft (6) and the driven shaft (7) are equipped with transmission gears (18).

3. The road and bridge maintenance and repair device according to claim 1, characterized in that: The drive shaft (6) is provided with a sliding groove (19), and the adjusting block (15) and the pressing block (17) are provided with sliding blocks (20) that cooperate with the sliding groove (19).

4. The road and bridge maintenance and repair device according to claim 3, characterized in that: An adjusting screw (21) is rotatably mounted on the drive shaft (6), and the adjusting screw (21) is threadedly connected to the adjusting block (15).

5. A road and bridge maintenance and repair device according to claim 4, characterized in that: The adjusting screw (21) is provided with an adjusting gear (22), and the drive shaft (6) is provided with an adjusting gear ring (23) for rotation.

6. A road and bridge maintenance and repair device according to claim 5, characterized in that: The adjusting toothed ring (23) has anti-slip texture (24) on its outer circumference.

7. The road and bridge maintenance and repair device according to claim 1, characterized in that: The frame (2) is equipped with a hydraulic cylinder (25) and a stabilizer plate (26).

8. The road and bridge maintenance and repair device according to claim 1, characterized in that: A support frame (27) is provided between the moving rod (3) and the pressure plate (4), and a counterweight (28) is provided on the support frame (27).

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