A steel bridge deck paving auxiliary device

By using a first cylinder and a rotating motor in conjunction with a grinding disc to grind stubborn obstacles, and combining this with the movement of a second cylinder and a scraper to level the surface, the problem of low efficiency in handling stubborn obstacles in existing devices is solved, achieving a highly efficient bridge deck leveling and compaction effect.

CN224281037UActive Publication Date: 2026-05-26HOHAI UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HOHAI UNIV
Filing Date
2025-06-20
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing steel bridge deck paving auxiliary devices cannot effectively handle stubborn obstacles, and the scraper height adjustment is cumbersome and inefficient.

Method used

The device employs a combination of a first cylinder, a rotating motor, and a grinding disc. The moving parts are moved to the location of stubborn obstacles for grinding, and the material is leveled by the cooperation of a second cylinder and a scraper. Components such as support arms and spring damping columns improve the flexibility and compaction effect of the device.

Benefits of technology

It achieves efficient grinding of stubborn obstacles and flexible leveling of materials, reduces bridge surface damage, and improves leveling efficiency and device flexibility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224281037U_ABST
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Abstract

This utility model discloses an auxiliary device for steel bridge deck paving, including two movable supports symmetrically arranged. Each movable support has a drive wheel and a caster wheel at its bottom. A crossbeam is fixedly mounted on the top of each of the two movable supports, and a movable groove is formed at the bottom of the crossbeam. A lead screw is horizontally installed inside the movable groove, and a servo motor is mounted on one end of the lead screw. The servo motor is fixedly installed on the top of one of the movable supports. A movable component is fitted onto the surface of the lead screw. Through the combination of a first cylinder, a rotating motor, a connecting disc, and a grinding disc, when the movable component moves to the location of a stubborn obstacle on the bridge deck, the first cylinder lowers to the obstacle. The rotating motor then drives the grinding disc to perform grinding. The grinding disc is relatively easy to replace. By setting a support arm on one side of the movable component, the second cylinder lowers, causing the scraper to level the material while moving with the grinding disc, thus improving the flexibility and leveling ability of the auxiliary device.
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Description

Technical Field

[0001] This utility model relates to the field of steel bridge deck paving technology, and in particular to an auxiliary device for steel bridge deck paving. Background Technology

[0002] The cast-in-place asphalt concrete construction method for steel bridge deck paving is applicable to new or reconstructed steel bridge deck paving projects. It uses cast-in-place asphalt concrete as the connecting layer for the bridge deck paving, meeting the requirements for rust prevention of steel bridges, adhesion between the steel plate and the paving during the paving's service life, conformity between the paving layer and the steel plate, and resistance to low-temperature cracking, high-temperature deformation, fatigue cracking, and water damage. After the bridge deck paving is completed, leveling is required. Before the bridge deck leveling machine operates, auxiliary devices are needed to adjust large particles or depressions on the bridge deck to avoid affecting the normal operation of the leveling machine.

[0003] However, existing leveling auxiliary devices rely on the forward movement of a single scraper for leveling operations, which cannot handle stubborn obstacles. Furthermore, the existing scraper height adjustment is only manual, which is cumbersome and inefficient. Therefore, we propose a steel bridge deck paving auxiliary device. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this utility model provides an auxiliary device for steel bridge deck paving. Through the combination of a first cylinder, a rotating motor, a connecting disc, and a grinding disc, when the movable part moves to the position of a stubborn obstacle on the bridge deck, the first cylinder lowers to the stubborn obstacle, and the rotating motor drives the grinding disc to perform grinding. The grinding disc is relatively easy to replace. By setting the support arm on one side of the movable part, the second cylinder lowers so that the scraper flattens the material while moving with the grinding disc, thus improving the flexibility and leveling ability of the auxiliary device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a steel bridge deck paving auxiliary device, including two movable supports symmetrically arranged. Each movable support has a drive wheel and a caster wheel at its bottom. A crossbeam is fixedly mounted on the top of each of the two movable supports. A movable groove is formed at the bottom of the crossbeam, and a lead screw is horizontally installed inside the movable groove. A servo motor is mounted on one end of the lead screw, and the servo motor is fixedly mounted on the top of one of the movable supports. A movable component is sleeved on the surface of the lead screw, and a support arm is evenly welded to one side of the movable component. A crossbar is fixedly mounted at the bottom of the support arm. A second cylinder is installed at the bottom of the crossbar. A support plate is fixedly installed at the bottom of the telescopic rod of the second cylinder. Three connecting columns are fixedly installed at the bottom of one side of the support plate. A connecting plate is fixedly installed at the bottom of the connecting columns. A scraper is installed at the bottom of the connecting plate. A first cylinder is fixedly installed at the bottom of the movable part. A mounting plate is fixedly installed at the bottom of the first cylinder. A rotating motor is installed at the bottom of the mounting plate. A connecting plate is welded to the bottom of the drive shaft of the rotating motor. A grinding disc is installed at the bottom of the connecting plate by bolts. A triangular support frame is welded to the bottom of the mounting plate. An arc-shaped protective cover is installed at the bottom of the triangular support frame by screws.

[0006] As a preferred embodiment of this utility model, the support plate has symmetrical through holes on the surface away from the connecting column, a spring damping column is installed inside the through hole, a pressure plate is welded to the bottom of the spring damping column, and a vibration motor is installed at the top of the pressure plate.

[0007] As a preferred technical solution of this utility model, the connecting plate has evenly distributed circular holes on its surface, a threaded column is fixedly provided on the inner wall of the top of the scraper, a spring support column is sleeved on the surface of the threaded column, and an adjusting nut is sleeved on the surface of one end of the threaded column that passes through the circular hole.

[0008] As a preferred embodiment of this utility model, three synchronous second cylinders are installed between the crossbar and the support plate.

[0009] As a preferred embodiment of this utility model, pull rings are symmetrically arranged on both sides of the movable bracket.

[0010] Compared with the prior art, the beneficial effects that this utility model can achieve are: 1. By combining the first cylinder, the rotating motor, the connecting plate, and the grinding disc, when the movable part moves to the position of the stubborn bridge obstacle, the first cylinder is lowered to the stubborn bridge obstacle, and the rotating motor drives the grinding disc to perform grinding. Moreover, the grinding disc is relatively easy to replace. By setting the support arm on one side of the movable part, the second cylinder is lowered so that the scraper flattens the material while moving with the grinding disc, thereby improving the flexibility and leveling of the auxiliary device.

[0011] 2. The combination of spring damping columns, pressure plates, and vibration motors facilitates timely compaction of the bridge surface after grinding, reducing damage to the bridge surface. The combination of connecting plates, round holes, spring support columns, scrapers, threaded columns, and adjusting nuts allows personnel to adjust the tightness or tilt of the scraper as needed, and also facilitates scraper replacement. Attached Figure Description

[0012] Figure 1 This is a partial cross-sectional view of the overall front of this utility model.

[0013] Figure 2 This is a schematic diagram of the overall side structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the support arm leveling assembly of this utility model.

[0015] Figure 4 This is a top view schematic diagram of the grinding disc and arc-shaped protective cover of this utility model.

[0016] Figure 5 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0017] The components are as follows: 1. Movable support; 2. Drive wheel; 3. Servo motor; 4. Crossbeam; 5. Movable part; 6. Lead screw; 7. Support arm; 8. First cylinder; 9. Mounting plate; 10. Rotary motor; 11. Connecting plate; 12. Grinding disc; 13. Triangular support frame; 14. Arc-shaped protective cover; 15. Crossbar; 16. Second cylinder; 17. Support plate; 18. Connecting plate; 19. Connecting column; 20. Round hole; 21. Spring damping column; 22. Pressure plate; 23. Vibration motor; 24. Spring support column; 25. Scraper; 26. Threaded column. Detailed Implementation

[0018] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation are all within the protection scope of this utility model without creative effort.

[0019] For an example, please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, this utility model provides a steel bridge deck paving auxiliary device, including two movable supports 1. Two movable supports 1 are symmetrically arranged. Each movable support 1 has a drive wheel 2 and a caster wheel at its bottom. A crossbeam 4 is fixedly mounted on the top of each of the two movable supports 1. A movable groove is formed at the bottom of the crossbeam 4, and a lead screw 6 is horizontally installed inside the movable groove. A servo motor 3 is mounted on one end of the lead screw 6 and is fixedly mounted on the top of one of the movable supports 1. A movable part 5 is sleeved on the surface of the lead screw 6, and one side of the movable part 5 is uniformly welded... A support arm 7 is connected, and a crossbar 15 is fixedly installed at the bottom end of the support arm 7. A second cylinder 16 is installed at the bottom end of the crossbar 15. A support plate 17 is fixedly installed at the bottom end of the telescopic rod of the second cylinder 16. Three connecting columns 19 are fixedly installed at the bottom end of one side of the support plate 17. A connecting plate 18 is fixedly installed at the bottom end of the connecting columns 19. A scraper 25 is installed at the bottom end of the connecting plate 18. A first cylinder 8 is fixedly installed at the bottom end of the movable part 5. A mounting plate 9 is fixedly installed at the bottom end of the first cylinder 8. A rotating motor 10 is installed at the bottom end of the mounting plate 9. A connecting plate 11 is welded to the bottom of the drive shaft of the rotating motor 10. A grinding disc 12 is bolted to the bottom of the connecting plate 11. A triangular support frame 13 is welded to the bottom of the mounting plate 9. An arc-shaped protective cover 14 is screwed to the bottom of the triangular support frame 13. Through the combination of the moving bracket 1, drive wheel 2, servo motor 3, crossbeam 4, and moving part 5, the paving auxiliary device moves more smoothly and steadily. Through the combination of the first cylinder 8, rotating motor 10, connecting plate 11, and grinding disc 12, the moving part 5 moves... When the device moves to the location of a stubborn obstacle on the bridge surface, the first cylinder 8 lowers to the stubborn obstacle and drives the grinding disc 12 to perform grinding by rotating the motor 10. The grinding disc 12 is relatively easy to replace. By setting the support arm 7 on one side of the movable part 5, the second cylinder 16 lowers so that the scraper 25 scrapes the material and moves with the grinding disc 12, improving the flexibility and leveling of the auxiliary device. The triangular support frame 13 and the arc-shaped protective cover 14 reduce the splashing of material when grinding by the grinding disc 12.

[0020] like Figure 2 , Figure 3 , Figure 5 As shown, the support plate 17 has symmetrical through holes on the side away from the connecting column 19. A spring damping column 21 is installed inside the through hole. A pressure plate 22 is welded to the bottom of the spring damping column 21, and a vibration motor 23 is installed at the top of the pressure plate 22. The combination of the spring damping column 21, the pressure plate 22, and the vibration motor 23 facilitates timely compaction of the bridge surface after grinding by the grinding disc 12, reducing damage to the bridge surface.

[0021] like Figure 2 , Figure 5As shown, the connecting plate 18 has evenly spaced circular holes 20 on its surface. A threaded post 26 is fixedly installed on the inner wall of the top of the scraper 25. A spring support post 24 is fitted on the surface of the threaded post 26. An adjusting nut is fitted on the surface of one end of the threaded post 26, which passes through the circular hole 20. The arrangement of the connecting plate 18, the circular hole 20, the spring support post 24, the scraper 25, the threaded post 26, and the adjusting nut makes it easy for personnel to adjust the tightness or tilt of the scraper 25 according to their needs, and also makes it easy to replace the scraper 25.

[0022] like Figure 3 As shown, three synchronous second cylinders 16 are installed between the crossbar 15 and the support plate 17; by installing three synchronous second cylinders 16 between the crossbar 15 and the support plate 17, the scraper 25 can be flexibly raised and lowered to scrape the excess material after the bridge surface is ground and compacted.

[0023] like Figure 2 As shown, pull rings are symmetrically arranged on both sides of the movable support 1; by symmetrically arranging pull rings on both sides of the movable support 1, it is easy to move the movable support 1.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A steel bridge deck paving auxiliary device, comprising a movable support (1), characterized in that: Two movable supports (1) are symmetrically arranged. The bottom of each movable support (1) is provided with a drive wheel (2) and a caster wheel. A crossbeam (4) is fixedly provided at the top of each of the two movable supports (1). A movable groove is provided at the bottom of the crossbeam (4). A lead screw (6) is installed horizontally inside the movable groove. A servo motor (3) is provided at one end of the lead screw (6). The servo motor (3) is fixedly installed at the top of one of the movable supports (1). A movable part (5) is sleeved on the surface of the lead screw (6). A support arm (7) is evenly welded on one side of the movable part (5). A crossbar (15) is fixedly provided at the bottom of the support arm (7). A second cylinder (16) is installed at the bottom of the crossbar (15). The bottom of the telescopic rod of the second cylinder (16) is fixedly provided with... There is a support plate (17), and three connecting columns (19) are fixedly installed on one side of the bottom end of the support plate (17). A connecting plate (18) is fixedly installed at the bottom end of the connecting column (19). A scraper (25) is installed at the bottom end of the connecting plate (18). A first cylinder (8) is fixedly installed at the bottom end of the movable part (5). A mounting plate (9) is fixedly installed at the bottom end of the first cylinder (8). A rotating motor (10) is installed at the bottom end of the mounting plate (9). A connecting plate (11) is welded to the bottom end of the drive shaft of the rotating motor (10). A grinding disc (12) is installed at the bottom end of the connecting plate (11) by bolts. A triangular support frame (13) is welded to the bottom end of the mounting plate (9). An arc-shaped protective cover (14) is installed at the bottom end of the triangular support frame (13) by screws.

2. The auxiliary device for steel bridge deck paving according to claim 1, characterized in that: The support plate (17) has symmetrical through holes on the side away from the connecting column (19). A spring damping column (21) is installed inside the through hole. A pressure plate (22) is welded to the bottom of the spring damping column (21). A vibration motor (23) is installed at the top of the pressure plate (22).

3. The auxiliary device for steel bridge deck paving according to claim 1, characterized in that: The connecting plate (18) has evenly distributed round holes (20) on its surface. The scraper (25) has a threaded column (26) fixedly installed on the inner wall of its top end. A spring support column (24) is fitted on the surface of the threaded column (26). An adjusting nut is fitted on the surface of the threaded column (26) that passes through the round hole (20).

4. The auxiliary device for steel bridge deck paving according to claim 1, characterized in that: Three synchronous second cylinders (16) are installed between the crossbar (15) and the support plate (17).

5. The auxiliary device for steel bridge deck paving according to claim 1, characterized in that: Pull rings are symmetrically arranged on both sides of the movable support (1).