Front supporting leg diagonal bracing mechanism of bridge girder erection machine

Abstract

The utility model relates to the technical field of bridge construction, and discloses a front supporting leg diagonal bracing mechanism of a bridge erecting machine, which comprises a main body assembly, the main body assembly comprises a lower cross beam, and lower supporting legs are symmetrically arranged at the top of the lower cross beam; each lower supporting leg is provided with the corresponding upper supporting leg; the upper cross beam is fixedly connected to the tops of the two upper supporting legs; the U-shaped plates are symmetrically arranged on the lower cross beam, and the number of the U-shaped plates is two; the device has the advantages that the upper inclined rod and the lower inclined rod are convenient to disassemble and maintain, when the two inclined rods need to be disassembled, an operator screws the driving rod on one side to drive the bidirectional threaded rod to rotate, so that the two limiting blocks are driven to move out of the two limiting grooves at the same time, limiting and fixing of the fixing blocks are canceled, and the working efficiency is improved. By arranging the U-shaped plates, an operator can drive the fixing blocks to move out of the box body through the U-shaped plates, the multiple U-shaped plates can drive the two inclined rods to be detached by repeating operation for multiple times, and the problem that the upper inclined rods and the lower inclined rods are inconvenient to maintain or replace due to the fact that the upper inclined rods and the lower inclined rods are inconvenient to detach is solved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a front outrigger inclined support mechanism for a bridge erecting machine. Background Technology

[0002] The bridge erection machine operates by first prefabricating the box girders to be erected in sections at the beam fabrication yard, then transporting them by a beam transport vehicle to the rear of the bridge erection machine, which has already been erected at the bridge opening position. The gantry crane on the bridge erection machine then suspends the prefabricated beam sections that have been transported one after another in an orderly manner under the main beam of the bridge erection machine, which has been aligned with the bridge opening. Finally, each beam section is lowered onto the bridge pier.

[0003] In existing bridge erecting machines, as the main beam moves forward along the top roller of the front support leg, the front support leg must resist the horizontal recoil force of the roller, otherwise it will tip over. Existing technology uses adjustable diagonal supports to adapt to the height changes of the front support leg of the bridge erecting machine. The adjustable diagonal supports are divided into upper and lower diagonal bars, which are hinged by connecting pins to achieve folding between the column and the upper base. However, in actual use, the upper and lower diagonal bars are not easy to disassemble, making it inconvenient to maintain or replace the device, thus lacking practicality. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a front outrigger diagonal bracing mechanism for a bridge erecting machine, which has the advantage of facilitating the disassembly and maintenance of the upper and lower diagonal braces, thus solving the problem that the upper and lower diagonal braces are inconvenient to disassemble, leading to difficulties in maintenance or replacement.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a front support leg diagonal bracing mechanism for a bridge erecting machine, comprising a main body assembly; the main body assembly includes a lower crossbeam, on which lower support legs are symmetrically arranged; upper support legs, on which each lower support leg is provided; an upper crossbeam, fixedly connected to the top of the two upper support legs; U-shaped plates, symmetrically arranged on the lower crossbeam, and provided in two sets; diagonal rods, on which each set of U-shaped plates is hinged; a disassembly assembly is provided on the lower crossbeam, the disassembly assembly including: a fixing block, on which a fixing block is fixedly connected to the outer wall of each U-shaped plate; a box, on which a box is provided; a drive rod, through which a drive rod is provided in each box; a bidirectional threaded rod, on which a bidirectional threaded rod is fixedly connected to the outer wall of each drive rod; a moving plate, on which a moving plate is threadedly connected to the outer wall of each bidirectional threaded rod; a limiting block, on which a limiting block is fixedly connected to the outer wall of each moving plate; and a limiting groove, on which a limiting groove is symmetrically opened on the outer wall of each fixing block.

[0008] Preferably, a handwheel is fixedly connected to one end of each drive rod.

[0009] Preferably, both of the two drive rods on the same side have a linkage rod fixedly connected to their opposite surfaces.

[0010] Preferably, each of the boxes is provided with an auxiliary component inside, and each set of auxiliary components includes: a push plate, which is disposed inside the box; and a spring, which is disposed on the push plate.

[0011] Preferably, multiple springs are provided.

[0012] Preferably, each of the fixed blocks has a positioning plate fixedly connected to its outer side wall.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a front outrigger diagonal bracing mechanism for a bridge erecting machine, which has the following beneficial effects:

[0015] This invention has the advantage of facilitating the disassembly and maintenance of the upper and lower inclined rods. When it is necessary to disassemble the two inclined rods, the operator turns one of the drive rods, causing the bidirectional threaded rod on it to rotate, thereby moving the two limit blocks out of the two limit slots at the same time, thus canceling the limitation and fixation of the fixing block. This allows the operator to move the fixing block out of the box through the U-shaped plate. By repeating the operation multiple times, the two inclined rods can be removed by multiple U-shaped plates. This solves the problem that the upper and lower inclined rods are inconvenient to disassemble, which makes it difficult to maintain or replace them. 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 cross-sectional structural diagram of the box body in this utility model;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of part A in the middle.

[0020] In the picture:

[0021] 1. Main body components; 11. Lower crossbeam; 12. Lower support leg; 13. Upper support leg; 14. Upper crossbeam; 15. U-shaped plate; 16. Diagonal brace;

[0022] 2. Disassembly components; 21. Fixing block; 22. Housing; 23. Drive rod; 24. Two-way threaded rod; 25. Moving plate; 26. Limiting block; 27. Limiting groove;

[0023] 3. Auxiliary components; 31. Push plate; 32. Spring;

[0024] 4. Linkage rod; 5. Positioning plate; 6. Handwheel. Detailed Implementation

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See Figure 1-4 A bridge erecting machine front support leg diagonal bracing mechanism includes a main body assembly 1; the main body assembly 1 includes a lower crossbeam 11, on which lower support legs 12 are symmetrically arranged; upper support legs 13, on which each of the lower support legs 12 is provided; an upper crossbeam 14, fixedly connected to the top of the two upper support legs 13; U-shaped plates 15, symmetrically arranged on the lower crossbeam 11, and two sets of them are provided; diagonal rods 16, on which each set of U-shaped plates 15 is hinged; a disassembly assembly 2 is provided on the lower crossbeam 11, the disassembly assembly 2 including: a fixing block 21, on which the outer wall of each U-shaped plate 15 is fixedly connected; and a box body 22, on which each Each of the fixed blocks 21 is provided with a housing 22; a drive rod 23, which is provided through each housing 22; a bidirectional threaded rod 24, which is fixedly connected to the outer wall of each drive rod 23; a moving plate 25, which is threadedly connected to the outer wall of each bidirectional threaded rod 24; a limiting block 26, which is fixedly connected to the outer wall of each moving plate 25; and limiting grooves 27, which are symmetrically provided on the outer wall of each fixed block 21; a handwheel 6 is fixedly connected to one end of each drive rod 23; and a linkage rod 4 is fixedly connected to the opposite faces of two drive rods 23 on the same side.

[0028] When ready for use, place the lower crossbeam 11 in the designated position. The upper crossbeam 14 is supported by the lower support leg 12 and the upper support leg 13. Multiple U-shaped plates 15 are respectively installed on the upper crossbeam 14 and the lower support leg 12. Then, the upper crossbeam 14 is supported by the diagonal rods 16 on the U-shaped plates 15. When it is necessary to disassemble the two diagonal rods 16, the operator turns one side of the drive rod 23, causing the drive rod 23 to drive the bidirectional threaded rod 24 on it to rotate in the fixed block 21. This causes the two moving plates 25 in one fixed block 21 to move away from each other, thereby causing the two moving plates 25 to drive the two limiting blocks 26 to move away from each other and move out of the two limiting grooves 27. This removes the limiting fixation of the fixed block 21, allowing the operator to drive the fixed block 26 through the U-shaped plates 15. 1. By removing the housing 22 and repeating the operation multiple times, the multiple U-shaped plates 15 and the two diagonal rods 16 can be removed, making it easier for operators to maintain or fix them, ensuring the stability of the support, and thus improving the practicality of the device. The operator can turn the handwheel 6 by hand to drive the drive rod 23 to rotate, avoiding the difficulty of turning the drive rod 23 when the operator directly turns it due to its smooth surface, thus improving the convenience of the device. When the operator turns one drive rod 23, the rotation of one drive rod 23 drives the linkage rod 4 to rotate simultaneously, causing the linkage rod 4 to drive the other drive rod 23 to rotate simultaneously, so that the operator does not need to manually turn the other drive rod 23 again, improving the operator's work efficiency.

[0029] Example 2

[0030] See Figure 1-4 Based on Embodiment 1, auxiliary functions have been added;

[0031] Each of the housings 22 is provided with an auxiliary component 3 inside. Each set of auxiliary components 3 includes: a push plate 31, which is disposed inside the housing 22; a spring 32, which is disposed on the push plate 31; and multiple springs 32 are provided. A positioning plate 5 is fixedly connected to the outer wall of each fixing block 21.

[0032] When the operator installs the diagonal bar 16, they pick up a U-shaped plate 15, causing the U-shaped plate 15 to drive the fixing block 21 into the housing 22. This causes the fixing block 21 to press against the push plate 31, which in turn presses against the spring 32, causing the spring 32 to contract. When the operator turns the drive rod 23 to release the limiting fixation, the spring 32 pushes the push plate 31, which then automatically ejects the fixing block 21 out of the device without requiring the operator to pull it out manually, thus improving the convenience of the device. Multiple springs 32 simultaneously push the push plate 31, enabling the push plate 31 to stably eject the fixing block 21 out, thereby improving the stability of the device. When the operator installs the fixing block 21, after the fixing block 21 presses against the push plate 31, when the fixing block 21 drives the positioning plate 5 to be pressed against the housing 22, the limiting groove 27 and the limiting block 26 are aligned, preventing the operator from inconveniently viewing the inside of the housing 22 and affecting the installation efficiency.

[0033] 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 front outrigger diagonal bracing mechanism for a bridge erecting machine, comprising a main body assembly (1); the main body assembly (1) includes... The lower crossbeam (11) has symmetrically arranged lower support legs (12) at its top. Upper support leg (13), each of the lower support legs (12) is provided with an upper support leg (13); The upper crossbeam (14) is fixedly connected to the top of the two upper support legs (13); U-shaped plates (15) are symmetrically arranged on the lower crossbeam (11), and there are two sets of them; Diagonal brace (16), each U-shaped plate (15) is hinged with a diagonal brace (16); Its features are: A disassembly assembly (2) is provided on the lower crossbeam (11), the disassembly assembly (2) comprising: Fixing block (21), each of the U-shaped plates (15) is fixedly connected to the outer side wall of the fixing block (21); Box (22), each of the fixed blocks (21) is provided with a box (22); Drive rod (23), each of the boxes (22) is provided with a drive rod (23); A bidirectional threaded rod (24) is fixedly connected to the outer wall of each of the drive rods (23); The movable plate (25) is threaded to the outer wall of each of the two-way threaded rods (24); Limiting block (26), each of the movable plates (25) is fixedly connected to the outer side wall of the limiting block (26); Limiting groove (27): Each of the fixed blocks (21) has a symmetrically provided limiting groove (27) on its outer side wall.

2. The bridge erecting machine front support leg diagonal bracing mechanism according to claim 1, characterized in that: Each of the drive rods (23) has a handwheel (6) fixedly connected to one end.

3. The bridge erecting machine front support leg diagonal bracing mechanism according to claim 1, characterized in that: Both drive rods (23) on the same side are fixedly connected to each other with a linkage rod (4).

4. The bridge erecting machine front support leg diagonal bracing mechanism according to claim 1, characterized in that: Each of the housings (22) is provided with an auxiliary component (3), and each set of the auxiliary components (3) includes: A push plate (31) is disposed inside the housing (22); A spring (32) is disposed on the push plate (31).

5. The bridge erecting machine front support leg diagonal bracing mechanism according to claim 4, characterized in that: Multiple springs (32) are provided.

6. The bridge erecting machine front support leg diagonal bracing mechanism according to claim 1, characterized in that: Each of the fixed blocks (21) has a positioning plate (5) fixedly connected to its outer side wall.

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