Supporting device for railway wide-span swing bridge construction

By using multiple sets of auxiliary support mechanisms and anti-tilt positioning components during bridge rotation construction, the problems of insufficient support force and unstable rotation of traditional support devices in long-span bridges have been solved, achieving smooth bridge rotation and improving construction safety.

CN224514071UActive Publication Date: 2026-07-17SINOHYDRO ENG BUREAU 4
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SINOHYDRO ENG BUREAU 4
Filing Date
2025-07-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional support devices pose risks of insufficient support, unstable rotation, and easy tilting or overturning in the construction of long-span and heavy bridges, especially when the bridge crosses existing railway lines, rivers or urban roads, affecting construction safety and efficiency.

Method used

Multiple sets of auxiliary support mechanisms and anti-tilt positioning components are adopted. The auxiliary wheels are arranged in a ring array to provide stable support during rotation, prevent tilting and misalignment, and increase the support area and structural stability.

Benefits of technology

It improves the structural stability and safety of bridges during rotation, prevents system instability or overturning under external forces, ensures smooth rotation, and is suitable for various construction environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224514071U_ABST
    Figure CN224514071U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of support devices for railway wide-span swivel bridge construction, including swivel bridge body, the bottom end of swivel bridge body is provided with rotating support assembly, rotating support assembly includes support base and rotating support body, rotating support body has auxiliary support mechanism in annular array of circumferential side, each group of auxiliary support mechanism has at least one auxiliary wheel, so that rotating support body rotates on support base to realize the swivel operation of swivel bridge body, multiple auxiliary wheels rotate on rotating support body and support base circumferential side and landing with rotating support body synchronous operation, the side of each auxiliary wheel is provided with anti-inclination positioning assembly, the end of anti-inclination positioning assembly away from auxiliary wheel and support base sliding friction contact, so that when auxiliary wheel rotates around support base, anti-inclination positioning assembly can support auxiliary wheel stable anti-inclination misplacement.The utility model can expand support area, improve the effect of structural stability in rotation process.
Need to check novelty before this filing date? Find Prior Art

Claims

1. A support device for the construction of a wide-span railway swing bridge, installed at the bottom of the swing bridge body (1), characterized in that, The system includes a rotating support assembly (2) located at the bottom of the main body (1) of the rotating bridge. The rotating support assembly (2) includes a support base (3) cast on the foundation and a rotating support body (4) rotatably mounted on the top of the support base (3). The rotating support body (4) is integrally cast with the bottom of the main body (1). Multiple sets of auxiliary support mechanisms (5) are installed in a circular array around the rotating support body (4). Each set of auxiliary support mechanisms (5) has at least one auxiliary wheel (7), which allows the rotating support body (4) to support the bottom of the bridge. The rotating base (3) rotates to realize the rotation of the main body (1) of the rotating bridge. Multiple auxiliary wheels (7) are on the circumference of the rotating support (4) and the support base (3) and are grounded and rotate synchronously with the rotating support (4). Each auxiliary wheel (7) is provided with an anti-tilt positioning component on one side. The end of the anti-tilt positioning component away from the auxiliary wheel (7) is in sliding friction contact with the support base (3), so that when the auxiliary wheel (7) rotates around the support base (3), the anti-tilt positioning component can support the auxiliary wheel (7) to stabilize and prevent tilting and misalignment.

2. The support device for railway wide-span swing bridge construction according to claim 1, characterized in that: Each auxiliary support mechanism (5) further includes a support shaft (6) fixed to the outer wall of the rotating support (4) and a V-shaped connecting rod (10) fixedly installed on the bottom surface of the free end of the support shaft (6).

3. The support device for railway wide-span swing bridge construction according to claim 2, characterized in that: Each of the auxiliary wheels (7) is rotatably mounted with an inverted U-shaped frame shaft (8), and a supporting vertical shaft (9) is welded to the top of the U-shaped frame shaft (8). The two ends of the V-shaped connecting rod (10) away from the supporting connecting shaft (6) are fixedly connected to the outer periphery of the supporting vertical shaft (9).

4. The support device for railway wide-span swing bridge construction according to claim 3, characterized in that: The outer wall of the support base (3) is provided with a rotating auxiliary track groove (11), and the anti-tilt positioning component is connected between the rotating auxiliary track groove (11) and the support shaft (9).

5. The support device for railway wide-span swing bridge construction according to claim 4, characterized in that: The anti-tilt positioning assembly includes a fixed sleeve (14) welded to the outer wall of the supporting vertical shaft (9) and an anti-tilt positioning rod (13) welded to the outer wall of the fixed sleeve (14). The end of the anti-tilt positioning rod (13) away from the fixed sleeve (14) is inserted into the rotary auxiliary track groove (11).

6. The support device for railway wide-span swing bridge construction according to claim 5, characterized in that: The anti-tilt positioning rod (13) is inserted into the rotary auxiliary track groove (11). The outer wall of one end is provided with an arc-shaped abutment slope (15). The outer wall of the arc-shaped abutment slope (15) is in sliding friction contact with the inner wall of the rotary auxiliary track groove (11).

7. The support device for railway wide-span swing bridge construction according to claim 6, characterized in that: The top surface of the anti-tilt positioning rod (13) is welded to the outer wall of the support shaft (6) with a support fixing rod (12).