Bridge rotation self-balancing deviation rectifying device

Abstract

The utility model discloses a bridge swivel self-balancing deviation rectifying device which comprises a hoop support, a rotating disc, a steering block, a lifting rope, a counter weight, vehicle-mounted equipment and a fixing point arranged at the bottom of a to-be-swivel beam section, the hoop support is arranged at the top of a middle pier to serve as an installation structure of the rotating disc and the steering block, and the lifting rope and the counter weight are connected through the fixing point. By arranging the balancing device, the friction torque generated between the beam section and the turntable when the beam section is driven by the vehicle-mounted equipment and the turntable to rotate is balanced, so that the stability and the safety of a bridge structure in the rotation process are enhanced, and the safety of bridge rotation construction is ensured; and the state balance of the whole structure of the to-be-rotated beam section and whether the position in the horizontal plane deviates or not can be judged through the change of the acting force of the jacking beam section, and the deviation amount of beam section rotation can be corrected by adjusting the driving state of vehicle-mounted equipment and the jacking state of jacking equipment in time.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge rotation construction, and more specifically, to a bridge rotation self-balancing deviation correction device. Background Art

[0002] The bridge rotation construction is to prefabricate the bridge structure at both ends or at an appropriate position using the terrain and simple brackets, and then use the bridge structure itself as the rotating body and some machinery and equipment to rotate the bridge structure to the designated bridge axis position. According to the purpose, stage and technical characteristics of the rotation construction, the bridge rotation construction can be roughly divided into two types: the new construction of the rotating bridge and the secondary use of the rotation of the existing bridge. The rotation construction methods of the bridge superstructure mainly include turntable support rotation, track support rotation, and train support rotation. Correspondingly, it is necessary to set up a rotation system including a turntable and a vehicle support system. At present, the rotation construction technology of the newly built bridge is relatively mature and has been applied in many engineering projects, while the rotation of the existing bridge is relatively rare. It uses multi-point jacking jacks to lift upward and rotate around one of the piers as a fulcrum. The core and difficulty of its rotation construction is multi-point support and rotation. During the rotation process, there is a lack of measures to maintain the balance of the bridge beam, which is easy to cause rotation offset and generate large torque, affecting the safety of structural construction. Utility Model Content

[0003] The utility model aims to provide a self-balancing and deviation-correcting device for a bridge swivel, so as to solve the technical problem in the prior art that imbalance and torque are easily generated during the bridge swivel process, thus affecting the safety of the bridge structure.

[0004] In order to achieve these purposes and other advantages according to the utility model, a bridge swivel self-balancing and deviation-correcting device is provided, comprising:

[0005] The fixed points are arranged symmetrically along the axis of the middle pier at the bottom of the beam section to be rotated at the middle pier;

[0006] A hoop bracket is buckled downwardly and fastened to the upper end of the outer side of the middle pier and is arranged in accordance with the top size of the middle pier;

[0007] The lower end of the turntable is a fixed end and is fixed on the hoop bracket along the same axis as the middle pier;

[0008] A steering block is provided directly below each fixed point and is fixedly connected to the outer side of the clamp bracket. All steering blocks are located at the same horizontal height, and a through hole is vertically provided on the upper edge of the steering block;

[0009] A sling, one end of which is fixedly connected to a fixed point, and the other end of which extends downward through a corresponding through hole and is connected to a counterweight;

[0010] The vehicle-mounted equipment has a vehicle-mounted lifting mechanism at its upper end for abutting upward against the bottom of the beam section to be rotated, and the vehicle-mounted mobile equipment is used to drive the beam section to rotate.

[0011] Preferably, a baffle is further provided on the clamp bracket on the outer side of the turntable, and the baffle is symmetrically arranged on the outer side of the turntable.

[0012] Preferably, load-bearing jacks are symmetrically arranged along the axial direction of the turntable on the outer side of the turntable on the clamp bracket, and the load-bearing jacks are communicatively connected to a control terminal, which is used to obtain and display the pressure applied by the load-bearing jacks.

[0013] Preferably, the clamp bracket includes a pair of semicircular clamp plates, which are fastened together by bolts, and a lap piece is provided on the upper edge of each clamp plate in a horizontal direction toward the inside, and the lap piece is used to abut against the top surface of the middle pier, and all the lap pieces are commonly covered and connected with a top plate.

[0014] Preferably, a stiffening plate is connected between the bottom of the steering block and the outer side of the correspondingly connected hoop plate.

[0015] The utility model includes at least the following beneficial effects: the bridge rotation self-balancing and correcting device of the utility model includes a clamp bracket, a turntable, a steering block, a lifting rope, a counterweight, a vehicle-mounted equipment and a fixed point arranged at the bottom of the beam section to be rotated, and a clamp bracket is arranged on the top of the middle pier as an installation structure of the turntable and the steering block, and the lifting rope and the counterweight are connected through the fixed point to balance the friction torque generated between the beam section and the turntable when the beam section is driven to rotate by the vehicle-mounted equipment and the turntable, thereby enhancing the stability and safety of the bridge structure during the rotation process and ensuring the safety of the bridge rotation construction. By further arranging a load-bearing jack, the balance of the overall structural state of the beam section to be rotated and whether the position in the horizontal plane is offset can be judged by the change in the force of lifting the beam section, and the driving state of the vehicle-mounted equipment and the lifting state of the lifting equipment can be adjusted in time to correct the deviation of the beam section rotation.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front structural view of the bridge rotation self-balancing and deviation-correcting device of the utility model;

[0018] Figure 2 for Figure 1 AA top view structural diagram;

[0019] Figure 3The utility model is a schematic structural diagram of a bridge rotation self-balancing and deviation-correcting device arranged at the bottom of a bridge.

[0020] Figure numerals in the specification: 1. middle pier, 2. vehicle-mounted equipment, 3. beam section, 4. clamp bracket, 5. steering block, 6. fixing point, 7. lifting rope, 8. counterweight, 9. through hole, 10. turntable, 11. baffle, 12. load-bearing jack, 13. stiffening plate. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0022] In the description of the present invention, terms such as "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] like Figure 1-3 As shown, the bridge rotating self-balancing and deviation-correcting device of the utility model comprises:

[0024] The fixing points 6 are symmetrically arranged along the axis of the middle pier at the bottom of the beam section 3 to be rotated at the middle pier 1;

[0025] A hoop bracket 4 is buckled downwardly and fastened to the upper end of the outer side of the middle pier and is arranged in accordance with the top size of the middle pier;

[0026] The lower end of the turntable 10 is a fixed end and is fixed on the hoop bracket along the same axis as the middle pier;

[0027] A steering block 5 is provided directly below each fixed point and fixedly connected to the outer side of the clamp bracket 4. All steering blocks 5 are located at the same level. A through hole 9 is vertically provided on the steering block 5.

[0028] A suspension rope 7, one end of which is fixedly connected to a fixed point, and the other end of which extends downward through a corresponding through hole 9 and is connected to a counterweight 8;

[0029] The vehicle-mounted equipment 2 has a vehicle-mounted lifting mechanism at its upper end for abutting upward against the bottom of the beam section to be rotated, and the vehicle-mounted mobile equipment is used to drive the beam section 3 to rotate.

[0030] The total height of the turntable is 165mm. It adopts 75mm thick lower steel plate + 15mm stainless steel plate + 75mm MGA sliding plate. The diameter of the MGA sliding plate disc is 40mm, R = 0.2m. The vehicle-mounted lifting mechanism is generally set as a vehicle-mounted jack. First, symmetrically install the fixed points near the bottom of the beam section to be rotated at the middle pier. Use the vehicle-mounted equipment to lift the beam section to be rotated upward, remove the original support at the middle pier, install the hoop bracket, align the position of the steering block and the fixed point, so that the through hole and the fixed point are in the same vertical direction, and then align the axis and install the turntable on the inner side of the upper end of the hoop bracket. Fix the bottom of the beam section to be rotated by planting reinforcement for connection. The steel plate touching the turntable is then installed with a lifting rope. The lifting rope passes freely downward through the hole and is connected to the counterweight. The fixed point, lifting rope and counterweight are used together to balance the friction torque generated by the beam section relative to the turntable surface under the limiting action of the steering block. The weight of the counterweight is calculated based on the friction torque when the bridge rotates. After the preparation is completed, the moving route of the vehicle-mounted equipment is planned to rotate around the middle pier. Under the action of the turntable, the beam section to be rotated rotates. At the same time, the lifting rope applies a force in the opposite direction to the fixed point to balance the friction torque, thereby enhancing the stability and safety of the bridge structure during the rotation process and ensuring the safety of the bridge rotation construction.

[0031] In another technical solution, Figure 1 As shown, the hoop bracket is further provided with a baffle 11 on the outer side of the turntable, and the baffles are symmetrically arranged on the outer side of the turntable. The hoop bracket is installed, and the baffle is fixed on the upper surface of the hoop bracket in advance. By setting the baffle, the space where the suspension rope and the turntable are located is separated to prevent mutual influence.

[0032] In another technical solution, Figure 1-2 As shown, on the clamp bracket 4, a load-bearing jack 12 is symmetrically arranged along the axial direction of the turntable on the outer side of the turntable. The load-bearing jack 12 is communicatively connected to a control terminal, and the control terminal is used to obtain and display the pressure applied by the load-bearing jack.

[0033] Load-bearing jacks are symmetrically arranged on the middle pier. On the one hand, the beam can be lifted to increase the space between the beam and the support pad stone, thereby removing the original support and installing a rotating turntable. On the other hand, the oil pressure of the load-bearing jacks can be read through the control terminal connected by communication to determine whether all the load-bearing jacks bear equal pressure, thereby determining whether the state of the bridge beam is balanced. The direction of the beam inclination can also be determined by the difference in data of each load-bearing jack.

[0034] In another technical solution, Figure 1-2 As shown, the clamp bracket 4 includes a pair of semicircular clamp plates, which are fastened together by bolts, and a lap piece is provided on the upper edge of each clamp plate in the horizontal direction toward the inside, and the lap piece is used to abut against the top surface of the middle pier, and all the lap pieces are covered and connected with a top plate.

[0035] By setting a clamp bracket to install the fixed steering block, it is convenient to align the fixed point position, and setting a lap piece to improve the connection support capacity of the clamp bracket installed on the top of the middle pier. The top plate serves as a support plate with complete structural symmetry, which is convenient for the subsequent installation of structures such as turntables. The steel clamp plates are connected by high-strength bolts.

[0036] In another technical solution, Figure 1 As shown, a stiffening plate 13 is further connected between the bottom of the steering block 5 and the outer side of the correspondingly connected hoop plate to improve the stability of the steering block mounting structure.

[0037] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. The self-balancing and deviation-correcting device for bridge rotation is characterized by: include: The fixed points are arranged symmetrically along the axis of the middle pier at the bottom of the beam section to be rotated at the middle pier; A hoop bracket is buckled downwardly and fastened to the upper end of the outer side of the middle pier and is arranged in accordance with the top size of the middle pier; The lower end of the turntable is a fixed end and is fixed on the hoop bracket along the same axis as the middle pier; A steering block is provided directly below each fixed point and is fixedly connected to the outer side of the clamp bracket. All steering blocks are located at the same horizontal height, and a through hole is vertically provided on the upper edge of the steering block; A sling, one end of which is fixedly connected to a fixed point, and the other end of which extends downward through a corresponding through hole and is connected to a counterweight; The vehicle-mounted equipment has a vehicle-mounted lifting mechanism at its upper end for abutting upward against the bottom of the beam section to be rotated, and the vehicle-mounted mobile equipment is used to drive the beam section to rotate.

2. The self-balancing and deviation-correcting device for bridge swivel according to claim 1, characterized in that: The hoop bracket is also provided with a baffle on the outer side of the turntable, and the baffle is symmetrically arranged on the outer side of the turntable.

3. The self-balancing and deviation-correcting device for bridge swivel according to claim 1, characterized in that: On the hoop bracket, load-bearing jacks are symmetrically arranged along the axial direction of the turntable on the outer side of the turntable. The load-bearing jacks are communicatively connected to a control terminal, and the control terminal is used to obtain and display the pressure applied by the load-bearing jacks.

4. The self-balancing and deviation-correcting device for bridge swivel according to claim 1, characterized in that: The clamp bracket includes a pair of semicircular clamp plates, which are fastened together by bolts. An overlap piece is arranged on the upper edge of each clamp plate in a horizontal direction toward the inside, and the overlap piece is used to abut against the top surface of the middle pier. All the overlap pieces are covered and connected with a top plate.

5. The self-balancing and deviation-correcting device for bridge swivel according to claim 4, characterized in that: A stiffening plate is also connected between the bottom of the steering block and the outer side of the correspondingly connected hoop plate.

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