A support structure for a prefabricated bridge transport machine

Abstract

This utility model relates to the field of precast bridge transport machines, and discloses a support structure for a precast bridge transport machine, including a base. A rubber seat is located at the center of the upper surface of the base. A rotating structure is located on the upper surface of the rubber seat. The rotating structure includes a circular groove located at the center of the upper surface of the rubber seat. A rotating seat is located inside the circular groove. A rectangular seat is located at the center of the upper surface of the rotating seat. Rubber pads are located at the lower center of both the front and rear end faces of the rectangular seat. Circular columns are located at the center of both sides of the rectangular seat. In this utility model, the rotating structure can adapt to the longitudinal inclination of the beam due to the slope, maintaining stable contact between the support structure and the beam at all times, eliminating the need for manual adjustments and improving transport efficiency. Simultaneously, the rotational connection of the seat around the circular columns can convert rigid impacts into flexible rotation. Combined with the buffering effect of the rubber pads, this significantly reduces impact loads and prevents damage to the support structure and the beam due to impact.

Description

Technical Field

[0001] This utility model relates to the field of precast bridge transport machines, and in particular to a support structure for a precast bridge transport machine. Background Technology

[0002] In the field of bridge engineering, prefabrication and assembly technology has become the mainstream mode of modern bridge construction because it can shorten the on-site construction cycle and improve the quality and stability of components. Prefabricated bridge components need to be transported from the production site to the erection site by a special prefabricated bridge transport machine. The transport distance is usually 0.5-10 kilometers, and for some cross-river bridge projects, the transport distance even exceeds 20 kilometers. As the core connecting component between the transport machine and the prefabricated beam, the performance of the support structure directly affects the safety and efficiency of the transportation operation and the structural integrity of the prefabricated beam.

[0003] Existing support structures for precast bridge transport machines often employ a rigid, fixed design, which can only support precast beams of specific specifications and orientations. When the transport route has a slope, the precast beams are prone to longitudinal orientation shift as the transport machine tilts. In this case, the support structure and the beam cannot maintain a stable fit, requiring manual adjustment of the support angle. This not only prolongs transport time and reduces construction efficiency but may also cause structural damage due to uneven stress on the beam during adjustment. Therefore, those skilled in the art have provided a support structure for precast bridge transport machines to solve the problems mentioned in the background art. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a support structure for a prefabricated bridge transport machine. The rotating structure can adapt to the longitudinal tilt of the beam caused by the slope, always maintaining stable contact between the support structure and the beam, eliminating the need for manual stoppage and adjustment, thus improving transport efficiency. At the same time, the rotational connection around the circular column can convert rigid impact into flexible rotation, and with the buffering effect of the rubber pad, it can significantly reduce the impact load and prevent damage to the support structure and the beam due to impact.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a support structure for a prefabricated bridge transport machine, comprising a base, a rubber seat at the center of the upper end face of the base, and a rotating structure on the upper end face of the rubber seat; The rotating structure includes a circular groove located at the center of the upper end face of the rubber seat. A rotating seat is provided inside the circular groove. A rectangular seat is provided at the center of the upper end face of the rotating seat. Rubber pads are provided at the lower center of the front and rear end faces of the rectangular seat. Circular columns are provided at the center of both sides of the rectangular seat. Supporting seats are rotatably connected to the outer sides of the two circular columns. An adjustment structure is provided on the upper end face of the supporting seats. Through the above technical solution, the rubber seat at the center of the upper end face of the base utilizes the elastic deformation characteristics of rubber material to initially absorb vertical vibration loads during the initial placement of the precast beam and the start of transportation, reducing the direct impact of the load on the base and the main structure of the conveyor. During transportation, when the conveyor tilts slightly due to road slope, the rotating seat within the circular groove can rotate flexibly around the center of the groove, causing the rectangular seat and the bearing seat above to adjust their horizontal angle, ensuring that the upper end face of the bearing seat remains in contact with the bottom of the precast beam, avoiding localized stress concentration. Simultaneously, the circular columns on both sides of the rectangular seat form a rotatable connection with the bearing seat, allowing the bearing seat to rotate around the circular columns in the front-to-back direction, further adapting to the precast beam's own... The angular displacement caused by gravity deformation or transportation bumps allows for adaptive adjustment of the angle in both horizontal and forward / backward dimensions. In addition, the rubber pads at both ends of the rectangular base can buffer the collision impact between the base and the rectangular base when the base rotates forward and backward, avoiding wear caused by direct friction between metal parts. At the same time, they absorb the small vibrations generated during rotation. The rotating structure can adapt to the longitudinal tilt of the beam caused by the slope, always maintaining stable contact between the support structure and the beam. No manual stopping for adjustment is required, improving transportation efficiency. At the same time, the rotational connection of the base around the circular column can transform rigid impact into flexible rotation. Combined with the buffering effect of the rubber pads, the impact load is greatly reduced, preventing damage to the support structure and the beam due to impact.

[0006] Furthermore, the adjustment structure includes two sliding grooves, which are located at the front and rear of the center of the upper end face of the bearing seat. Sliding seats are provided at both sides of the center of the interior of each sliding groove. Limiting strips are provided on the upper end faces of both the two sliding seats on one side and the two sliding seats on the other side. Two lead screws are provided inside the rear sliding groove. One lead screw on one side passes through the rear center of one side of the bearing seat and extends into the rear sliding groove. One end of the lead screw on the other side is fixedly connected to one end face of the lead screw on one side, and the other end extends to the center of the other inner wall of the rear sliding groove. A sliding column is provided at the front center of one side of the bearing seat. The sliding column passes through one side of the bearing seat and extends to the other inner wall of the front sliding groove. Rotating heads are provided at the center of one side of both the lead screw and the sliding column on one side. With the above technical solution, when the limiting position needs to be adjusted according to the width of the precast beam, the operator rotates the rotating head on one side of the lead screw, causing both lead screws to rotate. Since the threads of the two lead screws turn in opposite directions, the rotation of one lead screw will cause the other lead screw to rotate synchronously in the opposite direction. The two sliding seats in the rear sliding groove are respectively threadedly connected to the two lead screws. Under the action of the reverse rotation of the lead screws, the sliding seats on both sides of the rear sliding groove will move towards or away from each other along the sliding groove. At the same time, the sliding seats in the front sliding groove are fixedly connected to the sliding column. The operator can rotate the rotating head on the sliding column to drive the sliding column to rotate, thereby driving the sliding seats in the front sliding groove. The seats also move in opposite directions or away from each other, achieving synchronous adjustment of the sliding seats in the front and rear sliding grooves. When the sliding seats move along the sliding grooves, they will drive the corresponding limit strips to move synchronously. After the precast beam is placed on the upper end face of the bearing seat, the adjustment structure adjusts the spacing of the limit strips on both sides to make the limit strips fit tightly against the two sides of the precast beam, thereby achieving lateral limit of the precast beam. This effectively restricts the lateral displacement of the precast beam during transportation, reduces the risk of the precast beam tipping over and colliding, and ensures transportation safety. At the same time, there is no need to replace special support components for precast beams of different widths, which greatly reduces the cost of equipment procurement and replacement, reduces construction downtime caused by component replacement, and improves the transportation efficiency of precast beams.

[0007] Furthermore, mounting grooves are provided at the center of the front and rear inner sidewalls of the two sliding grooves; The above technical solution reduces assembly difficulty and improves installation efficiency by placing two limiting strips and four sliding seats into the sliding groove through the mounting groove.

[0008] Furthermore, the lower end face of the bearing seat is provided with arc grooves at the front and rear of the center, and the upper end face of the rubber seat is provided with springs at the front and rear of the center, and the upper end faces of the two springs are slidably connected inside the two arc grooves. Through the above technical solution, the angle adjustment of the bearing seat mainly relies on the rigid fit between the rotating seat and the circular column. During the adjustment process, excessive frictional resistance can easily lead to uneven adjustment, especially when bearing heavy loads, and may even cause adjustment jamming. The arc-shaped trajectory of the circular groove provides a smooth sliding path for the upper end of the spring, reducing the frictional resistance when the bearing seat rotates, making the angle adjustment smoother. At the same time, the elastic support of the spring can compensate for the problem of uneven load distribution of the precast beam to a certain extent. When the precast beam experiences excessive force on one side of the bearing seat due to the shift of the center of gravity, the spring on that side will bear more load through compression deformation, while the spring on the other side will stretch accordingly, achieving dynamic balance of load, reducing deformation or damage to the support structure caused by uneven load, and reducing the safety risk of overturning and falling during the transportation of the precast beam.

[0009] Furthermore, wheels are provided at the front and rear positions of the center of both sides of the rubber seat; The above technical solution uses a wheel-driven device for movement, which facilitates the transportation of precast beams and meets the movement requirements of the device.

[0010] Furthermore, the two sliding seats at the rear are threadedly connected to the outside of the two lead screws, and the two sliding seats at the front are slidably connected to the outside of the sliding column. The above technical solution ensures that the two lead screws can drive the four sliding seats and limit strips to move when they rotate through threaded and sliding sleeve connections.

[0011] Furthermore, the threads of the two lead screws are arranged in opposite directions; The above technical solution ensures that the four sliding seats and limit bars move in opposite directions when the two lead screws rotate by setting the threads in opposite directions.

[0012] This utility model has the following beneficial effects: In this invention, the rotating support structure of the precast bridge transport machine can adapt to the longitudinal tilt of the beam caused by the slope, and always maintain stable contact between the support structure and the beam. No manual stopping and adjustment is required, which improves the transport efficiency. At the same time, the rotational connection of the seated circular column can transform rigid impact into flexible rotation. Combined with the buffering effect of the rubber pad, the impact load is greatly reduced, and the support structure and beam are prevented from being damaged by impact.

[0013] In this invention, the adjusting structure adjusts the spacing of the limiting strips on both sides so that the limiting strips fit tightly against both sides of the precast beam, thereby achieving lateral limiting of the precast beam. This effectively restricts the lateral displacement of the precast beam during transportation, reduces the risk of tipping over and colliding, and ensures transportation safety. At the same time, it eliminates the need to replace special support components for precast beams of different widths, significantly reducing equipment procurement and replacement costs, minimizing construction downtime caused by component replacement, and improving the transportation efficiency of precast beams. Attached Figure Description

[0014] Figure 1 This is a perspective view of a support structure for a prefabricated bridge transport machine proposed in this utility model; Figure 2 This is a three-dimensional sectional view of a support structure for a prefabricated bridge transporter proposed in this utility model; Figure 3 This is a perspective view of a support structure limiting strip for a prefabricated bridge transporter proposed in this utility model; Figure 4 This is a perspective view of a support structure bearing seat for a prefabricated bridge transporter proposed in this utility model.

[0015] Legend: 1. Base; 2. Rubber seat; 3. Rotating structure; 4. Adjusting structure; 5. Circular groove; 6. Spring; 7. Wheel; 301. Circular groove; 302. Rotating seat; 303. Rectangular seat; 304. Rubber pad; 305. Circular column; 306. Bearing seat; 401. Sliding groove; 402. Sliding seat; 403. Limiting bar; 404. Lead screw; 405. Sliding column; 406. Rotating head; 407. Mounting groove. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-4 One embodiment of this utility model is a support structure for a prefabricated bridge transport machine, including a base 1, a rubber seat 2 at the center of the upper surface of the base 1, and a rotating structure 3 on the upper surface of the rubber seat 2.

[0018] like Figure 1 , 2As shown in Figure 4, the rotating structure 3 includes a circular groove 301 located at the center of the upper end face of the rubber seat 2. A rotating seat 302 is provided inside the circular groove 301. A rectangular seat 303 is provided at the center of the upper end face of the rotating seat 302. Rubber pads 304 are provided at the lower center of both the front and rear end faces of the rectangular seat 303. Circular columns 305 are provided at the center of both sides of the rectangular seat 303. Support seats 306 are rotatably connected to the outer sides of the two circular columns 305. An adjustment structure 4 is provided on the upper end face of the support seat 306. The base 1... The rubber seat 2 at the center of the upper end face utilizes the elastic deformation characteristics of rubber material to initially absorb vertical vibration loads during the initial placement of the precast beam and the initial stage of transportation, reducing the direct impact of the load on the base 1 and the main structure of the conveyor. During transportation, when the conveyor tilts slightly due to the road slope, the rotating seat 302 in the circular groove 301 can rotate flexibly around the center of the circular groove 301, driving the rectangular seat 303 and the bearing seat 306 above to adjust their horizontal angle, ensuring that the upper end face of the bearing seat 306 is in contact with the precast beam. The bottom of the beam remains in contact to avoid local stress concentration. At the same time, the circular columns 305 on both sides of the rectangular seat 303 form a rotatable connection with the bearing seat 306, allowing the bearing seat 306 to rotate around the circular columns 305 in the front and back directions. This further adapts to the angular displacement caused by the precast beam's own weight deformation or transportation bumps, achieving adaptive adjustment of the angle in both horizontal and front and back dimensions. In addition, the rubber pads 304 at both ends of the rectangular seat 303 can buffer the collision impact between the bearing seat 306 and the rectangular seat 303 when the bearing seat 306 rotates back and forth, avoiding wear caused by direct friction between metal parts, and absorbing the small vibrations generated during rotation. The rotating structure 3 can adapt to the longitudinal tilt of the beam caused by the slope, always maintaining stable contact between the support structure and the beam, without the need for manual stopping for adjustment, thus improving transportation efficiency. At the same time, the rotatable connection of the bearing seat 306 around the circular columns 305 can convert rigid impact into flexible rotation. Combined with the buffering effect of the rubber pads 304, the impact load is greatly reduced, preventing damage to the support structure and the beam due to impact.

[0019] like Figure 1 , 2As shown in Figure 3, the adjusting structure 4 includes two sliding grooves 401. The two sliding grooves 401 are located at the front and rear of the center of the upper end face of the bearing seat 306. Sliding seats 402 are provided on both sides of the center of the two sliding grooves 401. Limiting strips 403 are provided on the upper end face of the two sliding seats 402 on one side and the two sliding seats 402 on the other side. Two lead screws 404 are provided inside the rear sliding groove 401. The lead screw 404 on one side passes through the center of the bearing seat 306 at the rear and extends into the rear sliding groove 401. One end of the lead screw 404 on the other side is fixedly connected to one end face of the lead screw 404 on the one side and the other end extends to the rear sliding groove 401. At the center of the other inner side wall of the sliding groove 401, a sliding column 405 is provided at the front of the center of one side of the bearing seat 306. The sliding column 405 passes through one side of the bearing seat 306 and extends to the other inner side wall of the sliding groove 401. A rotating head 406 is provided at the center of one side of both the lead screw 404 and the sliding column 405. When it is necessary to adjust the limiting position according to the width of the precast beam, the operator rotates the rotating head 406 on the lead screw 404 on one side, which drives the two lead screws 404 to rotate. Since the threads of the two lead screws 404 turn in opposite directions, the rotation of the lead screw 404 on one side will drive the lead screw 404 on the other side to rotate in the same direction. When rotated, the two sliding seats 402 in the rear sliding groove 401 are threadedly connected to the lead screws 404 on both sides. Under the action of the lead screws 404 rotating in the opposite direction, the sliding seats 402 on both sides of the rear sliding groove 401 will move towards or away from each other along the sliding groove 401. At the same time, the sliding seat 402 in the front sliding groove 401 is fixedly connected to the sliding column 405. When the operator rotates the rotating head 406 on the sliding column 405, the sliding column 405 can be rotated, thereby driving the sliding seat 402 in the front sliding groove 401 to move towards or away from each other as well, so as to realize the synchronous adjustment of the sliding seats 402 in the front and rear sliding grooves 401. When the sliding seat 402 moves along the sliding groove 401, it will drive the corresponding limiting strip 403 to move synchronously. After the precast beam is placed on the upper surface of the bearing seat 306, the adjusting structure 4 adjusts the spacing of the limiting strips 403 on both sides so that the limiting strips 403 fit tightly against the two sides of the precast beam, thereby achieving lateral limiting of the precast beam. This effectively restricts the lateral displacement of the precast beam during transportation, reduces the risk of the precast beam tipping over and colliding, and ensures transportation safety. At the same time, there is no need to replace special support components for precast beams of different widths, which greatly reduces the cost of equipment procurement and replacement, reduces the construction downtime caused by component replacement, and improves the transportation efficiency of precast beams.

[0020] The two sliding grooves 401 are provided with mounting grooves 407 at the center of the front and rear inner side walls. The two limiting strips 403 and four sliding seats 402 are placed into the sliding grooves 401 through the mounting grooves 407 to reduce assembly difficulty and improve installation efficiency.

[0021] The bearing seat 306 has arc grooves 5 at the front and rear of the center of its lower end face, and springs 6 at the front and rear of the center of the upper end face of the rubber seat 2. The upper ends of the two springs 6 are slidably connected inside the two arc grooves 5. The angle adjustment of the bearing seat 306 mainly relies on the rigid fit between the rotating seat 302 and the circular column 305. During the adjustment process, excessive frictional resistance can easily lead to uneven adjustment, especially when bearing heavy loads, and may even cause adjustment jamming. The arc trajectory of the arc groove 5 provides a smooth sliding path for the upper end of the spring 6, reducing the frictional resistance when the bearing seat 306 rotates, making the angle adjustment smoother. At the same time, the elastic support of the spring 6 can compensate for the problem of uneven load distribution of the precast beam to a certain extent. When the precast beam is shifted due to the center of gravity, causing excessive force on one side of the bearing seat 306, the spring 6 on that side will bear more load through compression deformation, while the spring 6 on the other side will stretch accordingly, realizing dynamic balance of load, reducing deformation or damage to the support structure caused by uneven load, and reducing the safety risk of overturning and falling during the transportation of the precast beam.

[0022] Wheels 7 are provided at the front and rear of the center of both sides of the rubber seat 2. The device is moved by the wheels 7, which facilitates the transportation of the precast beam and meets the movement requirements of the device.

[0023] The two sliding seats 402 at the rear are threadedly connected to the outside of the two lead screws 404, and the two sliding seats 402 at the front are slidably connected to the outside of the sliding column 405. The threaded connection and the slidable connection ensure that when the two lead screws 404 rotate, they can drive the four sliding seats 402 and the limit bar 403 to move.

[0024] The threads of the two lead screws 404 are reversed, which ensures that the four sliding seats 402 and the limit bar 403 move in opposite directions when the two lead screws 404 are rotating.

[0025] Working principle: When using the device, the precast beam is first placed on the bearing seat 306. When it is necessary to adjust the limiting position according to the width of the precast beam, the operator rotates the rotating head 406 on one side of the lead screw 404, which drives the two lead screws 404 to rotate. Since the threads of the two lead screws 404 are opposite, the rotation of one side of the lead screw 404 will drive the other side of the lead screw 404 to rotate synchronously in the opposite direction. The two sliding seats 402 in the sliding groove 401 at the rear are threadedly connected to the lead screws 404 on both sides respectively. Under the action of the reverse rotation of the lead screws 404, the sliding seats 402 on both sides of the sliding groove 401 at the rear will move towards or away from each other along the sliding groove 401. At the same time, the sliding seat 402 in the sliding groove 401 at the front is fixedly connected to the sliding column 405. The operator can rotate the rotating head 406 on the sliding column 405 to drive the sliding column 405 to rotate.

[0026] This drives the sliding seat 402 in the front sliding groove 401 to move in opposite directions or away from each other, so that the sliding seats 402 in the front and rear sliding grooves 401 can be adjusted synchronously. When the sliding seat 402 moves along the sliding groove 401, it will drive the corresponding limiting strip 403 to move synchronously. After the precast beam is placed on the upper surface of the bearing seat 306, the adjustment structure 4 adjusts the spacing of the limiting strips 403 on both sides so that the limiting strips 403 fit tightly against the two sides of the precast beam, thereby achieving lateral limiting of the precast beam, effectively restricting the lateral displacement of the precast beam during transportation, reducing the risk of the precast beam tipping over and colliding, ensuring transportation safety, and eliminating the need to replace special support components for precast beams of different widths, greatly reducing equipment procurement and replacement costs, reducing construction downtime caused by component replacement, and improving the transportation efficiency of precast beams.

[0027] During transportation, the rubber seat 2 at the center of the upper surface of the base 1 utilizes the elastic deformation characteristics of the rubber material to initially absorb vertical vibration loads during the initial placement of the precast beam and the start of transportation, reducing the direct impact of the load on the base 1 and the main structure of the conveyor. When the conveyor tilts slightly due to the road slope during transportation, the rotating seat 302 in the circular groove 301 can rotate flexibly around the center of the circular groove 301, driving the rectangular seat 303 and the bearing seat 306 above to adjust the horizontal angle, ensuring that the upper surface of the bearing seat 306 can keep in contact with the bottom of the precast beam, avoiding local stress concentration. At the same time, the circular columns 305 on both sides of the rectangular seat 303 form a rotatable connection with the bearing seat 306, allowing the bearing seat 306 to rotate around the circular column 305 in the front and back directions, further adapting to the angle displacement caused by the precast beam's own weight deformation or transportation bumps, and realizing adaptive angle adjustment in both horizontal and front and back dimensions.

[0028] In addition, the rubber pads 304 at both ends of the rectangular seat 303 can buffer the collision impact between the support seat 306 and the rectangular seat 303 when the support seat 306 rotates back and forth, avoiding wear caused by direct friction between metal parts, and absorbing the small vibrations generated during rotation. The rotating structure 3 can adapt to the longitudinal tilt of the beam caused by the slope, always maintaining stable contact between the support structure and the beam, without the need for manual stopping for adjustment, thus improving transportation efficiency. At the same time, the rotational connection of the support seat 306 around the circular column 305 can convert rigid impact into flexible rotation. Combined with the buffering effect of the rubber pads 304, the impact load is greatly reduced, preventing the support structure and the beam from being damaged by impact.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A support structure for a prefabricated bridge transport machine, comprising a base (1), characterized in that: A rubber seat (2) is provided at the center of the upper end face of the base (1), and a rotating structure (3) is provided on the upper end face of the rubber seat (2); the rotating structure (3) includes a circular groove (301), the circular groove (301) is located at the center of the upper end face of the rubber seat (2), a rotating seat (302) is provided inside the circular groove (301), a rectangular seat (303) is provided at the center of the upper end face of the rotating seat (302), a rubber pad (304) is provided at the lower center of the front and rear end faces of the rectangular seat (303), a circular column (305) is provided at the center of both sides of the rectangular seat (303), and a bearing seat (306) is rotatably sleeved on the outside of the two circular columns (305), and an adjustment structure (4) is provided on the upper end face of the bearing seat (306).

2. The support structure for a prefabricated bridge transport machine according to claim 1, characterized in that: The adjustment structure (4) includes two sliding grooves (401). The two sliding grooves (401) are located at the front and rear of the center of the upper end face of the bearing seat (306). Sliding seats (402) are provided on both sides of the center of the two sliding grooves (401). Limiting strips (403) are provided on the upper end faces of the two sliding seats (402) on one side and the two sliding seats (402) on the other side. Two lead screws (404) are provided inside the sliding groove (401) at the rear. The lead screw (404) on one side passes through the center of one side of the bearing seat (306) at the rear. The sliding groove (401) leads to the interior of the rear section. One end of the lead screw (404) on the other side is fixedly connected to one end face of the lead screw (404) on the side, and the other end leads to the center of the other inner wall of the sliding groove (401) on the rear section. A sliding column (405) is provided at the center of one side of the bearing seat (306) near the front. The sliding column (405) passes through one side of the bearing seat (306) and leads to the other inner wall of the sliding groove (401) on the front section. A rotating head (406) is provided at the center of one side of both the lead screw (404) and the sliding column (405) on the side.

3. The support structure for a prefabricated bridge transport machine according to claim 2, characterized in that: The two sliding grooves (401) are provided with mounting grooves (407) at the center of the front and rear inner sidewalls.

4. The support structure for a prefabricated bridge transport machine according to claim 1, characterized in that: The bearing seat (306) has a circular arc groove (5) at the front and rear of the center of the lower end face, and the rubber seat (2) has a spring (6) at the front and rear of the center of the upper end face. The upper ends of the two springs (6) are slidably connected inside the two circular arc grooves (5).

5. The support structure for a prefabricated bridge transport machine according to claim 1, characterized in that: Wheels (7) are provided at the front and rear positions of the center of both sides of the rubber seat (2).

6. The support structure for a prefabricated bridge transport machine according to claim 2, characterized in that: The two sliding seats (402) at the rear are threadedly connected to the outside of the two lead screws (404), and the two sliding seats (402) at the front are slidably connected to the outside of the sliding column (405).

7. The support structure for a prefabricated bridge transport machine according to claim 2, characterized in that: The threads of the two lead screws (404) are opposite.

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