Cable-stayed support structure of front supporting leg of bridge girder erection machine

Abstract

The utility model discloses a bridge girder erection machine front supporting leg cable-stayed supporting structure which comprises a bridge girder erection machine body, a door-shaped frame is arranged in the bridge girder erection machine body, a stand column is fixedly connected below the door-shaped frame, supporting feet are fixedly connected to the bottom of the stand column, an adjusting assembly is arranged between the supporting feet, and rail assemblies are arranged at the connecting positions of the supporting feet and the stand column. The rail assembly comprises a first rail and a second rail, one end of the first rail is rotationally connected with one end of the second rail, the first rail has a first state and a second state, when the first rail is in the first state, the second rail and the first rail are located on the same straight line, and a crane is used for cooperation, a cage operation mode is adopted, and a connecting pin shaft is disassembled and assembled; after rectification, the operation time is effectively shortened to five or six hours, the operation time is saved by more than half compared with the operation time before transformation, the beam erecting cost is greatly reduced, the operation is simple, convenient and rapid, and the disassembly and assembly are flexible.

Description

Technical Field

[0001] This utility model relates to the field of equipment technology in the construction industry, specifically to a diagonal bracing structure for the front outrigger of a bridge erecting machine. Background Technology

[0002] Bridge erection machines are essential engineering equipment for erecting highway bridges, conventional railway bridges, and high-speed railway bridges. Traditional bridge erection machines have pure box-type outriggers that are not adjustable and can only be used as support points. They have limited functionality and poor adaptability, and cannot meet the many problems encountered in bridge erection work, resulting in low construction efficiency of bridge erection machines.

[0003] Chinese utility model patent CN212956965U discloses a steel structure diagonal brace for buildings, including an upper crossbeam, a lower crossbeam, a steel frame, a diagonal brace, an upper fixing plate, and a lower fixing plate. Both ends of the upper and lower crossbeams have threaded holes, and there are four such holes. The upper and lower ends of the steel frame are fixedly connected with steel frame threaded heads. The steel frame is threadedly connected to the upper and lower crossbeams via these threaded heads. Holes are formed at both ends of the two steel frame surfaces, and fixing threaded heads are installed in these holes. These fixing threaded heads are located on one side of the fixing thread and are fixedly connected to the steel frame via the fixing threaded heads and fixing nuts. This utility model connects the various structures with screws and nuts, increasing the stability of the building and facilitating disassembly. Currently, the diagonal brace extension section of the front support leg of a bridge erecting machine is designed as a double-section with concentric holes. The integrated heightening section has several drawbacks in actual on-site construction. For example, adjusting the height of the diagonal bracing is cumbersome and inconvenient during the erection of continuous beams or the first and last spans of solid block box girders. It requires the use of a crane and a cage operation method to disassemble and assemble the connecting pins, then the inner shaft, and finally the front support diagonal bracing heightening section with the help of personnel. The entire process takes thirteen or fourteen hours, which is tedious and complex, consuming manpower and resources, posing significant safety hazards, increasing the cost of beam erection, and prolonging the operation time. Secondly, the most convenient way to move the lateral track of the front support of the bridge erecting machine forward is to attach it to the front support of the bridge erecting machine and move it forward through the span together. However, for wide, separated double-span bridges, when the left and right spans of the bridge are erected simultaneously, the length of the lateral track of the front support is large. When attaching it forward, the cantilever of the track is too large, which has a significant adverse effect on the deformation of the track itself and the lateral balance of the bridge erecting machine through the span. Therefore, we propose a diagonal bracing structure for the front support of the bridge erecting machine to solve the above problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a diagonal bracing structure for the front outrigger of a bridge erecting machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a bridge erecting machine front support leg diagonal bracing structure, including a bridge erecting machine body, a portal frame inside the bridge erecting machine body, a column fixedly connected below the portal frame, a support leg fixedly connected to the bottom of the column, and an adjustment component provided between the support legs;

[0006] A track assembly is provided at the connection between the support leg and the column. The track assembly is configured as a first track and a second track. One end of the first track is rotatably connected to one end of the second track. The first track has a first state and a second state. When it is in the first state, the second track and the first track are on the same straight line. When it is in the second state, the first track is folded onto the second track.

[0007] A steering mechanism is installed at the bottom of the first track, and the steering mechanism drives the first track to rotate. Both the first track and the second track are provided with slide grooves, and support leg assemblies are movably connected in the slide grooves. Fixing members are fixedly connected to both sides of the first track, and cable reels are fixedly connected to both sides of the second track. The steering mechanism and the fixing members are connected by a steel wire rope. A circular hinge is provided at the connection point between the first track and the second track.

[0008] Preferably, the adjusting assembly includes an unloading cylinder, which is fixedly placed at the bottom of the support leg. Above the portal frame is a support beam, on which a hinge seat diagonal rod is provided. The hinge seat diagonal rod is fixedly installed at the bottom of the hanging component, and the hinge seat diagonal rod cooperates with the hanging component.

[0009] Preferably, the adjusting assembly includes an adjusting rod, which is disposed between the support legs. A screw is connected to the end of the adjusting rod, and several shims are disposed between the unloading cylinder and the support legs.

[0010] Preferably, the outrigger assembly includes a sliding seat, a diagonal brace telescopic rod, a pin hole, a bolt, a heightening section, a flange, and a hinge seat. The bottom of the sliding seat is movably engaged in a sliding groove, and the top of the sliding seat is hinged to a diagonal brace telescopic rod.

[0011] Preferably, the diagonal bracing telescopic rod is composed of several telescopic sections connected together, and the diagonal bracing telescopic rod has several pin holes, which are fixed by bolts. Several height-increasing sections are fixedly connected to the top of the diagonal bracing telescopic rod.

[0012] Preferably, the extension sections are connected by flanges, which are fixed by bolts, and the top of the extension section is movably connected to the crossbeam by a hinged seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the front outrigger support structure of the bridge erecting machine is not only simple in structure, but also adjustable in height, adaptable to various beam erection conditions, and has high construction efficiency;

[0014] The first track is rotatably connected to the second track at one end. The first track and the second track are in two states: straight line and folded. The steering device can drive the first track to rotate, so that the first track and the second track can switch between the two states: straight line and folded. This makes it convenient for the bridge erecting machine's front outrigger to move the track laterally when erecting a wide, separated double-span bridge.

[0015] Traditionally, the erection of continuous beams or solid block first and last span box girders requires the use of cranes and cage-type operations. This involves disassembling and assembling connecting pins, then disassembling and assembling the inner shaft, and finally disassembling and assembling the front outriggers and diagonal bracing sections with the help of personnel. After the modification, the operation time is effectively shortened to five or six hours, saving more than half of the operation time compared to before the modification. This greatly reduces the cost of beam erection and makes the operation simple, fast, and flexible in disassembly and assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the track assembly structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded structure of the track assembly in this utility model.

[0020] In the diagram: 1. Main body of the bridge erecting machine; 11. Column; 12. Portal frame; 13. Hinge seat diagonal bar; 14. Hanging component; 15. Leg; 16. Support beam; 2. Adjustment assembly; 21. Unloading cylinder; 22. Adjusting rod; 23. Screw; 24. Shim; 3. Crossbeam; 4. Track assembly; 41. First track; 42. Second track; 43. Slide groove; 44. Wire rope; 45. Fixing component; 46. Connecting component; 47. Winding device; 48. Steering device; 5. Leg assembly; 51. Sliding seat; 52. Diagonal brace telescopic rod; 53. Pin hole; 54. Bolt; 55. Heightening section; 56. Flange; 57. Hinge seat. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4This utility model provides a technical solution: a bridge erecting machine front support leg diagonal bracing structure, including a bridge erecting machine body 1, a gate frame 12 inside the bridge erecting machine body 1, a column 11 fixedly connected below the gate frame 12, a support leg 15 fixedly connected at the bottom of the column 11, and an adjustment component 2 provided between the support legs 15.

[0023] Please see Figure 1 The adjusting component 2 contains an unloading cylinder 21, which is fixedly placed at the bottom of the support leg 15. Above the portal frame 12 is a support beam 16, on which a hinge seat inclined rod 13 is provided. The hinge seat inclined rod 13 is fixedly installed at the bottom of the hanging component 14, and the hinge seat inclined rod 13 cooperates with the hanging component 14.

[0024] It should be noted that the adjusting assembly 2 contains an adjusting rod 22, which is located between the support legs 15. The end of the adjusting rod 22 is connected to a screw 23, and several shims 24 are provided between the unloading cylinder 21 and the support legs 15.

[0025] Please see Figure 2-3 A track assembly 4 is provided at the connection between the support leg 15 and the column 11. The track assembly 4 is configured as a first track 41 and a second track 42. One end of the first track 41 is rotatably connected to one end of the second track 42. The first track 41 has a first state and a second state. When it is in the first state, the second track 42 and the first track 41 are on the same straight line. When it is in the second state, the first track 41 is folded onto the second track 42.

[0026] It should be noted that a steering device 48 is installed at the bottom of the first track 41, and the steering device 48 drives the first track 41 to rotate. Both the first track 41 and the second track 42 are provided with a slide groove 43. The support leg assembly 5 is movably connected in the slide groove 43. Fixing members 45 are fixedly connected to both sides of the first track 41, and cable reels 47 are fixedly connected to both sides of the second track 42. The steering device 48 and the fixing members 45 are connected by a steel wire rope 44. A circular hinge 46 is provided at the connection between one end of the first track 41 and the second track 42.

[0027] During use, the first track 41 and the second track 42 are rotatably connected by one end of the first track 41 and the second track 42. The first track 41 and the second track 42 are in the same straight line or folded state. The first track 41 can be driven to rotate by the steering device 48, so that the first track 41 and the second track 42 can be switched between the same straight line and folded state. This makes it convenient for the bridge erecting machine leg assembly 5 to be used when erecting a wide, separated double-span bridge.

[0028] Please see Figure 2The outrigger assembly 5 contains a sliding seat 51, a diagonal brace telescopic rod 52, a pin hole 53, a bolt 54, a heightening section 55, a flange 56, and a hinge seat 57. The bottom of the sliding seat 51 is movably engaged in the slide groove 43, and the top of the sliding seat 51 is hinged to the diagonal brace telescopic rod 52.

[0029] It should be noted that the diagonal bracing telescopic rod 52 is composed of several telescopic sections connected together, and several pin holes 53 are opened on the diagonal bracing telescopic rod 52. The pin holes 53 are fixed by bolts 54, and several height-increasing sections 55 are fixedly connected to the top of the diagonal bracing telescopic rod 52.

[0030] During use, the height of the outriggers can be adjusted by the outrigger assembly 5 to adapt to the needs of different occasions. The diagonal bracing telescopic rod 52 is composed of several telescopic sections connected together. The telescopic sections have pin holes 53 and are fixed by bolts 54 to ensure the length of the diagonal bracing telescopic rod 52. In addition, the height of the outriggers can be adjusted by disassembling or assembling the extension section 55. The extension section 55 is connected by a flange 56 for easy installation.

[0031] In addition, the heightening sections 55 are connected by flanges 56, which are fixed by bolts 54. The top of the heightening section 55 is movably connected to the crossbeam 3 by a hinge seat 57, which greatly reduces the cost of beam erection and makes the operation simple, quick and flexible.

[0032] Working principle: In the process of use, the height of the outriggers can be adjusted by the outrigger assembly 5 to adapt to the needs of different occasions. The diagonal bracing telescopic rod 52 is composed of several telescopic sections connected together. The telescopic sections are provided with pin holes 53 and are fixed by bolts 54 to ensure the length of the diagonal bracing telescopic rod 52. In addition, the height of the outriggers can be adjusted by disassembling or assembling the extension section 55. The extension section 55 is connected by a flange 56 for easy installation.

[0033] During use, the diagonal bracing telescopic rod 52 is movably connected to the track assembly 4 through the sliding seat 51. The track assembly 4 is configured as a first track 41 and a second track 42, which are rotatably connected by one end of the first track 41 and one end of the second track 42. The first track 41 and the second track 42 are in two states: the same straight line or folded. The first track 41 can be driven to rotate through the steering device 48, so that the first track 41 and the second track 42 can be switched between the same straight line and folded states. This makes it convenient for the bridge erecting machine's outrigger assembly 5 to be used when erecting a wide, separated double-span bridge.

[0034] 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 girder erecting machine front outrigger diagonal bracing structure comprising a bridge girder erecting machine main body (1), characterized in that: The bridge machine main body (1) contains a door frame (12), the door frame (12) is fixedly connected with a stand (11) below, the stand (11) bottom is fixedly connected with a support leg (15), the support leg (15) is provided with an adjusting assembly (2) between the support leg (15), the support leg (15) and the stand (11) are provided with a track assembly (4), the track assembly (4) is provided with a first track (41) and a second track (42), the first track (41) one end is rotatably connected with the second track (42) one end, and the first track (41) has a first state and a second state, when being in the first state, the second track (42) is located on the same straight line with the first track (41), when being in the second state, the first track (41) is folded on the second track (42), the first track (41) bottom is provided with a steering gear (48), and the steering gear (48) drives the first track (41) to rotate, the first track (41) and the second track (42) are all provided with a sliding groove (43), the sliding groove (43) is movably connected with a support leg assembly (5), the first track (41) both sides are fixedly connected with a fixed part (45), the second track (42) both sides are fixedly connected with a wire winder (47), the steering gear (48) and the fixed part (45) are connected through a steel wire rope (44), the first track (41) one end is provided with a circular hinge part (46) at the second track (42) connection. The adjusting assembly (2) contains an unloading oil cylinder (21), the unloading oil cylinder (21) is fixedly placed in the support leg (15) bottom, the door frame (12) top is a support beam (16), the support beam (16) is provided with a hinged seat inclined rod (13), the hinged seat inclined rod (13) is fixedly installed in the hanger (14) bottom, and the hinged seat inclined rod (13) cooperates with the hanger (14). The adjusting assembly (2) contains an adjusting rod (22), the adjusting rod (22) is arranged between the support leg (15), the adjusting rod (22) end is connected with a screw rod (23), the unloading oil cylinder (21) and the support leg (15) are provided with a plurality of gaskets (24).

2. The front outrigger cable stay structure of a bridge-launching machine according to claim 1, characterized in that: The support leg assembly (5) contains a sliding seat (51), an inclined support telescopic rod (52), a pin hole (53), a bolt (54), a height increasing section (55), a flange plate (56) and a hinge seat (57), the sliding seat (51) bottom is movably clamped in the sliding groove (43), and the sliding seat (51) top is hingedly connected with the inclined support telescopic rod (52).

3. The front outrigger cable stay structure of a bridge-launching machine according to claim 2, characterized in that: The inclined support telescopic rod (52) is sleeved by a plurality of telescopic sections, a plurality of pin holes (53) are formed in the inclined support telescopic rod (52), the pin holes (53) are fixed by the bolt (54), and the inclined support telescopic rod (52) top is fixedly connected with a plurality of height increasing sections (55).

4. The front outrigger cable stay structure of a bridge-launching machine according to claim 1, characterized in that: ​ 5. The front outrigger cable stay structure of a bridge-launching machine according to claim 4, characterized in that: ​ 6. The front outrigger cable stay structure of a bridge-launching machine according to claim 5, characterized in that: The high sections (55) are connected by flanges (56) which are fixed by the bolts (54), and the top of the high sections (55) are movably connected to the crossbeam (3) by hinged seats (57).

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