Bridge rotation posture adjusting device

Abstract

The utility model discloses a bridge rotation posture adjusting device which comprises a bridge rotation support, a concentric annular sliding way is arranged on the outer side of the bridge rotation support, a plurality of sliding supporting feet are distributed on the circumference of the annular sliding way, the sliding supporting feet are of lifting structures, outer concrete counter-force bases corresponding to the sliding supporting feet one to one are arranged on the outer side of the annular sliding way, and the outer concrete counter-force bases are connected with the annular sliding way. A steel frame is fixed to the outer concrete counter-force base, a transverse jack is fixed to the sliding supporting foot, and the telescopic end of the transverse jack is rotationally connected with the steel frame. According to the utility model, the posture adjustment and over-rotation callback functions of the bridge swivel are integrated, the accurate control of the height and angle of the bridge swivel is realized, the accuracy of bridge swivel construction is greatly improved, the over-rotation callback operation process is simplified, the construction efficiency is obviously improved, and the overall structure has high strength and high stability, and is suitable for popularization and application. And structural deformation or damage caused by overlarge stress is avoided, and safety and reliability in the construction process are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a bridge rotation posture adjustment device. Background Technology

[0002] In bridge construction, the bridge rotation technique is widely used because it effectively solves construction challenges such as crossing existing traffic lines and complex terrain. During bridge rotation, the bridge's attitude adjustment is crucial; precise adjustment ensures that the bridge's position after rotation meets design requirements. Simultaneously, due to various factors, over-rotation may occur during the process, necessitating a reliable over-rotation correction device to ensure construction quality and safety.

[0003] Chinese patent application CN202411948600.0 discloses a device and method for controlling the attitude during the unbalanced rotation of a cable-stayed bridge. The attitude control device includes a circular slide rail positioned between the upper and lower rotating sections; eight sliding components evenly distributed on the slide rail, each including a support foot plate positioned below the beam; a sliding steel pad positioned at the bottom of the support foot plate in the forward direction; and a polytetrafluoroethylene (PTFE) plate positioned between the slide rail and the sliding steel pad. This technical solution, by employing a combination of slide rail, sliding components, and PTFE plate during the construction of the rotating bridge, solves the problem of difficulty in controlling the bridge's rotation attitude in existing technologies, achieving a smooth bridge rotation and overcoming the drawbacks of conventional operating methods.

[0004] While existing bridge rotation attitude adjustment devices can achieve smooth bridge rotation, they suffer from shortcomings in terms of ease of adjustment, flexibility, and stress stability during over-rotation and correction. Adjustment accuracy is also difficult to guarantee, and their adaptability to different working conditions is poor, failing to adequately meet actual construction needs. Therefore, this application proposes a bridge rotation attitude adjustment device to address these problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a bridge rotation posture adjustment device that is easy to operate, has good stability and high adjustment accuracy.

[0006] To solve the above-mentioned technical problems, the present invention includes a bridge slewing support. The outer side of the bridge slewing support is provided with a concentric annular slide. Multiple sliding support feet are distributed circumferentially on the annular slide. The sliding support feet are lifting structures. The outer side of the annular slide is provided with an outer concrete reaction seat corresponding to each sliding support foot. A steel frame is fixed on the outer concrete reaction seat. A transverse jack is fixed on the sliding support foot. The telescopic end of the transverse jack is rotatably connected to the steel frame.

[0007] Preferably, the sliding support includes a support column, a roller cart, and a longitudinal jack. The longitudinal jack is embedded in the support column, and the telescopic end of the longitudinal jack is fixedly connected to the top surface of the roller cart.

[0008] Preferably, a steel plate frame is fixed to the side of the support column, and reinforcing ribs are welded at the connection between the steel plate frame and the support column, and the transverse jack is installed inside the steel plate frame.

[0009] Preferably, the steel frame includes a crossbeam and a longitudinal beam, the crossbeam and the longitudinal beam are arranged perpendicularly and welded to each other, the crossbeam is fixedly connected to the outer concrete reaction seat, and the longitudinal beam is connected to the transverse jack through a rotating component.

[0010] Preferably, the rotating component includes a central shaft, on which an upper shaft sleeve and a lower shaft sleeve are rotatably connected. The upper shaft sleeve is fixedly connected to a transverse jack, and the lower shaft sleeve is fixedly connected to a longitudinal beam.

[0011] Preferably, damping teeth are provided at the junction of the upper and lower bushings.

[0012] Preferably, the inner side of the annular slide is provided with an inner concrete reaction seat, which is symmetrically arranged with the outer concrete reaction seat.

[0013] The beneficial effects of this utility model are as follows: This utility model integrates the posture adjustment and over-rotation correction functions of bridge rotation. Through the lifting and lowering adjustment of the sliding support feet and the separate action of the lateral jacks, it achieves precise control of the height and angle of bridge rotation, which greatly improves the accuracy of bridge rotation construction, simplifies the over-rotation correction operation process, significantly improves construction efficiency, and the overall structure has high strength and high stability, avoiding structural deformation or damage due to excessive force, and ensuring the safety and reliability of the construction process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic plan view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the connection between the sliding support foot and the external concrete reaction seat in this utility model;

[0017] Figure 4 for Figure 3 A plan view;

[0018] Figure 5 for Figure 4 Schematic diagram of the AA section.

[0019] In the diagram: 1. Bridge rotation bearing; 2. Circular slide; 3. Sliding support foot; 31. Support column; 32. Roller cart; 33. Longitudinal jack; 34. Steel plate frame; 35. Reinforcing rib; 4. External concrete reaction seat; 5. Steel frame; 51. Crossbeam; 52. Longitudinal beam; 6. Transverse jack; 7. Embedded part; 8. Ribbed reinforcement; 9. Rotating part; 91. Central shaft; 92. Upper shaft sleeve; 93. Lower shaft sleeve; 94. Damping gear; 10. Internal concrete reaction seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All directional indicators (such as up, down, left, right, front, back, etc.) in the present utility model are only used to explain the relative positional relationship and movement of each component in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indicator will also change accordingly.

[0021] like Figure 1-5 As shown, this embodiment provides a bridge rotation attitude adjustment device, including a bridge rotation support 1. The outer side of the bridge rotation support 1 is provided with a concentric annular slide 2. Multiple sliding support legs 3 are distributed around the annular slide 2. In this example, there are six sliding support legs 3. The sliding support legs 3 are lifting structures. The outer side of the annular slide 2 is provided with an outer concrete reaction seat 4 that corresponds one-to-one with the sliding support legs 3. A steel frame 5 is fixed on the outer concrete reaction seat 4. A transverse jack 6 is fixed on the sliding support legs 3. The telescopic end of the transverse jack 6 is rotatably connected to the steel frame 5.

[0022] like Figure 3-5 As shown, the sliding support leg 3 includes a support column 31, a roller trolley 32, and a longitudinal jack 33. The longitudinal jack 33 is embedded in the support column 31, and the telescopic end of the longitudinal jack 33 is fixedly connected to the top surface of the roller trolley 32. In the design, an installation space for accommodating the longitudinal jack 33 is provided at the bottom of the support column 31. The longitudinal jack 33 is installed upside down, with its bottom end fixed inside the support column 31 and its top end connected to the top of the roller trolley 32. The roller trolley 32 contacts the annular slide 2 and can roll along the surface of the annular slide 2. Through the telescopic movement of the longitudinal jack 33, the roller trolley 32 can be driven to move up and down relative to the support column 31, thereby adjusting the height of the support column 31 and realizing the adjustment of the bridge's rotation posture in the vertical direction. In this example, each sliding support leg 3 has two support columns 31 and roller carriages 32, and the two support columns 31 are fixedly connected to improve the support strength. The roller carriages 32 are made of high-strength wear-resistant alloy steel, which can adapt to the long-term rolling friction of the circular slide and extend its service life. The rollers are in close contact with the slide, ensuring that the support columns 31 do not wobble during movement and providing stable support for posture adjustment.

[0023] A steel plate frame 34 is fixed to the side of the support column 31, and a reinforcing rib 35 is welded at the connection between the steel plate frame 34 and the support column 31. The transverse jack 6 is installed inside the steel plate frame 34. The reinforcing rib 35 is evenly distributed along the surface of the support column 31, thereby enhancing the connection strength between the steel plate frame 34 and the support column 31. The steel plate frame 34 is provided with an installation position that matches the transverse jack 6, and the transverse jack 6 is fixed at this position.

[0024] Furthermore, the steel frame 5 includes a crossbeam 51 and a longitudinal beam 52. The crossbeam 51 and the longitudinal beam 52 are arranged perpendicularly and welded to each other. The crossbeam 51 is fixedly connected to the outer concrete reaction seat 4. The side of the outer concrete reaction seat 4 is provided with an embedded part 7, which is welded to the crossbeam 51 to ensure effective force transmission. At the same time, a reinforcing bar 8 is welded at the connection between the embedded part 7 and the crossbeam 51, and a reinforcing bar 8 is also welded at the connection between the crossbeam 51 and the longitudinal beam 52, thereby improving the bending resistance of the overall structure of the steel frame 5. The longitudinal beam 52 is connected to the transverse jack 6 through a rotating part 9. Specifically, the rotating component 9 includes a central shaft 91, on which an upper bushing 92 and a lower bushing 93 are rotatably connected. The upper bushing 92 is fixedly connected to the transverse jack 6, and the lower bushing 93 is fixedly connected to the longitudinal beam 52. A damping tooth 94 is provided at the junction of the upper bushing 92 and the lower bushing 93. The damping tooth 94 and the side of the upper bushing 92 and the lower bushing 93 that are close to each other are provided with annular serrations. The serrations have a certain elasticity, and the serrations on the upper bushing 92 and the lower bushing 93 mesh with each other to prevent the sliding support foot 3 from sliding and affecting the accuracy of the bridge rotation angle.

[0025] The inner side of the annular slide 2 is provided with an inner concrete reaction seat 10, which is symmetrically arranged with the outer concrete reaction seat 4. The inner concrete reaction seat 10 and the outer concrete reaction seat 4 work together to provide a stable reaction support foundation for the entire structure. The inner and outer concrete reaction seats 4 and the annular slide 2 are integrally cast to ensure a firm connection with the foundation and resist the reaction force generated during the jacking process.

[0026] Its working principle is as follows: When the bridge's rotation posture and height need to be adjusted, the longitudinal jack 33 is operated. If the support column 31 needs to be raised, the longitudinal jack 33 is extended, and its top pushes the roller trolley 32 downward until the roller trolley 32 is in close contact with the annular slide 2 and lifts the support column 31. If the support column 31 needs to be lowered, the longitudinal jack 33 is retracted, and the roller trolley 32 moves downward accordingly, lowering the height of the support column 31. During the adjustment process, the roller trolley 32 always rolls along the surface of the annular slide 2 to ensure the smooth movement of the support column 31.

[0027] When the bridge rotation over-rotates and needs to be corrected, the transverse jack 6 is activated. The transverse jack 6 outputs thrust, which is transmitted to the longitudinal beam 52 through the rotating component 9. The longitudinal beam 52 transmits the force to the transverse beam 51, and the transverse beam 51 applies the force to the outer concrete reaction seat 4 through the embedded component 7. With the help of the reaction force of the outer concrete reaction seat 4, the support column 31 is pushed to move along the annular slide 2 in the opposite direction of the rotation, realizing the over-rotation correction. The rotating component 9 can flexibly adjust the angle according to the relative position of the outer concrete reaction seat 4 and the support column 31 to ensure that the thrust direction of the transverse jack 6 is consistent with the force requirement and to avoid the structure bearing additional torque. The longitudinal jack 33 and the transverse jack 6 are both screw jacks. The transverse jack 6 and the longitudinal jack 33 are both hydraulically driven, with the characteristics of large output force and stable speed adjustment. The hydraulic control system can realize precise thrust and displacement control. During the jacking process, pressure and displacement data can be monitored in real time to ensure that the adjustment accuracy meets the construction requirements.

[0028] Throughout the entire operation of the device, the inner concrete reaction seat 10 can help balance the lateral forces during the rotation process, while the reinforcing ribs 8 and reinforcing bars 35 continuously ensure the structural stability of each connection part, ensuring that the device can safely and reliably complete the attitude adjustment and over-rotation correction operations during bridge rotation construction.

[0029] This invention integrates posture adjustment and over-rotation / reverse adjustment functions. Through the separate actions of the longitudinal jack 33 and the transverse jack 6, precise control of height and angle is achieved, solving the problems of dispersed functions and low adjustment accuracy in traditional systems, and significantly improving the accuracy of rotation construction. Furthermore, the angle adjustment function of the rotating component 9 allows the transverse jack 6 to adapt to different positions of the external concrete reaction seat 4, ensuring reasonable and stable force distribution. Simultaneously, the rigid connection design between the crossbeam 51 and the external concrete reaction seat 4 simplifies the over-rotation / reverse adjustment operation process, significantly improving construction efficiency. The addition of reinforcing ribs 8 and ribs 35 at key connection points enhances the overall structural strength and stability of the system, preventing structural deformation or damage due to excessive force, and ensuring the safety and reliability of the construction process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge rotation posture adjustment device, comprising a bridge rotation support, characterized in that, The outer side of the bridge rotation support is provided with a concentric annular slide rail. Multiple sliding support feet are distributed around the circumference of the annular slide rail. The sliding support feet are lifting structures. The outer side of the annular slide rail is provided with an outer concrete reaction seat corresponding to each sliding support foot. A steel frame is fixed on the outer concrete reaction seat. A transverse jack is fixed on the sliding support foot. The telescopic end of the transverse jack is rotatably connected to the steel frame.

2. The bridge rotation posture adjustment device according to claim 1, characterized in that, The sliding support includes a support column, a roller cart, and a longitudinal jack. The longitudinal jack is embedded in the support column, and the telescopic end of the longitudinal jack is fixedly connected to the top surface of the roller cart.

3. The bridge rotation posture adjustment device according to claim 2, characterized in that, A steel plate frame is fixed to the side of the support column, and reinforcing ribs are welded at the connection between the steel plate frame and the support column. The transverse jack is installed inside the steel plate frame.

4. The bridge rotation posture adjustment device according to claim 1, characterized in that, The steel frame includes crossbeams and longitudinal beams. The crossbeams are arranged perpendicularly to the longitudinal beams and are welded and fixed to the longitudinal beams. The crossbeams are fixedly connected to the outer concrete reaction seat. The longitudinal beams are connected to the transverse jacks through rotating parts.

5. A bridge rotation posture adjustment device according to claim 4, characterized in that, The rotating component includes a central shaft, on which an upper shaft sleeve and a lower shaft sleeve are rotatably connected. The upper shaft sleeve is fixedly connected to a transverse jack, and the lower shaft sleeve is fixedly connected to a longitudinal beam.

6. A bridge rotation posture adjustment device according to claim 5, characterized in that, The junction of the upper and lower bushings is provided with damping teeth.

7. A bridge rotation posture adjustment device according to claim 1, characterized in that, The inner side of the annular slide is provided with an inner concrete reaction seat, which is symmetrically arranged with the outer concrete reaction seat.

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