CN216462577U

CN216462577U - Welding device for steel box girder tied arch bridge

Info

Publication number: CN216462577U
Application number: CN202122471250.1U
Authority: CN
Inventors: 陈庆鹏; 许腾; 贾广超
Original assignee: Shandong China Eighth Engineering Division Investment and Construction Co Ltd
Current assignee: Shandong China Eighth Engineering Division Investment and Construction Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-05-10
Anticipated expiration: 2031-10-14

Abstract

The utility model relates to the technical field of steel box girder tied arch bridges, in particular to a welding device of a steel box girder tied arch bridge, which comprises the following components: the welding device comprises a base, wherein a support column is arranged at the top of the base, a support frame is arranged at the top of the support column, and a welding table is arranged at the top of the support frame; the anti-skidding piece comprises a rotating piece and a telescopic piece; the lifting piece is arranged at the bottom of the base; the beneficial effects are that: the lifting column can be lifted when the gear provided by the utility model rotates, the pulley is lowered when the welding device needs to be moved, and the pulley is lifted and retracted into the base when welding is carried out, so that the contact area between the bottom of the base and the ground is enlarged, and the sliding is prevented; according to the utility model, after the screw rod rotates, the movable block can extend out of the base, and when the pulley is retracted into the base, the movable block extends out of the base, so that the contact area between the bottom of the base and the ground is increased.

Description

Welding device for steel box girder tied arch bridge

Technical Field

The utility model relates to the technical field of steel box girder tied arch bridges, in particular to a welding device for a steel box girder tied arch bridge.

Background

The span of the steel box girder tied arch bridge is larger, some spans are about one hundred twenty meters, the construction of the arch bridge adopts the construction process of on-site segmented assembly, when the arch bridge is assembled, two parallel main girders are required to be arranged along the extension direction of the arch bridge, a plurality of parallel middle cross girders are arranged between the main girders at intervals, the middle cross girders are vertical to the main girders, a plurality of steel structures are laid on the upper parts of the adjacent middle cross girders, the steel structures are parallel to the main girders, each steel structure forms the bridge floor of the arch bridge, and because the steel structures and the steel structures as well as the steel structures and the middle cross girders are required to be welded, a large number of welding tasks are required between the adjacent middle cross girders;

in the prior art, a pulley at the bottom of a welding device of a steel box girder tied arch bridge is fixed when in use, but has a small contact area with the ground, so that the pulley is easy to slide.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding device for a tied arch bridge of a steel box girder, which solves the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a welding device for a steel box girder tied arch bridge comprises:

the welding device comprises a base, wherein a support column is arranged at the top of the base, a support frame is arranged at the top of the support column, and a welding table is arranged at the top of the support frame;

the anti-skid piece comprises a rotating piece and a telescopic piece; and

the lifting piece is arranged at the bottom of the base.

Preferably, the support columns are installed at the top of the base, the number of the support columns is two, the support frame is installed at the top of the support columns, and the welding table at the top of the support frame can slide at the top of the support frame for welding.

Preferably, the rotating part comprises a double-end motor and a rotating shaft, the double-end motor is arranged in the base, and the rotating shaft is arranged at two ends of the double-end motor.

Preferably, the extensible member includes a moving block and a sliding groove, the moving block is mounted at the bottom of the base, the sliding groove is formed in the moving block, and a rotating member is arranged in the extensible member.

Preferably, the rotating part comprises a limiting ring, a screw rod and a thread groove, the screw rod is arranged at the end part of the rotating shaft, the limiting ring is arranged at the end part of the screw rod, and the thread groove is formed in the side wall of the sliding groove.

Preferably, the lift piece includes gear, lift post, accomodates groove and pulley, and the gear is installed in double-end motor's outside, and circular-arc when lift post one side, tooth are installed to one side, and the groove was accomodate in one side of lift post and gear engagement sets up in the bottom of base, and the pulley is installed in the bottom of lift post.

Compared with the prior art, the utility model has the beneficial effects that:

1. the lifting column can be lifted when the gear provided by the utility model rotates, the pulley is lowered when the welding device needs to be moved, and the pulley is lifted and retracted into the base when welding is carried out, so that the contact area between the bottom of the base and the ground is enlarged, and the sliding is prevented;

2. according to the utility model, after the screw rod rotates, the movable block can extend out of the base, and when the pulley is retracted into the base, the movable block extends out of the base, so that the contact area between the bottom of the base and the ground is increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a base structure according to the present invention;

FIG. 3 is a schematic view of the structure of B-B of the present invention;

fig. 4 is an enlarged view of a structure shown in fig. 3.

In the figure: the device comprises a base 1, a support column 2, a support frame 3, a welding table 4, a moving block 5, a limiting ring 6, a sliding groove 7, a screw 8, a gear 9, a containing groove 10, a pulley 11, a lifting column 12, a rotating shaft 13, a double-end motor 14 and a thread groove 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a welding device for a steel box girder tied arch bridge comprises: the welding device comprises a base 1, wherein support columns 2 are arranged at the top of the base 1, support frames 3 are arranged at the tops of the support columns 2, welding tables 4 are arranged at the tops of the support frames 3, the support columns 2 are arranged at the top of the base 1, two groups of support columns 2 are arranged, the support frames 3 are arranged at the tops of the support columns 2, and the welding tables 4 at the tops of the support frames 3 can slide at the tops of the support frames 3 for welding;

the anti-skidding part comprises a rotating part and a telescopic part, the rotating part comprises a double-end motor 14 and a rotating shaft 13, the double-end motor 14 is installed inside the base 1, the rotating shaft 13 is installed at two ends of the double-end motor 14, and after the position is determined, the double-end motor 14 is started, and the rotating shaft 13 starts to rotate;

the telescopic part comprises a moving block 5 and a sliding groove 7, the moving block 5 is installed at the bottom of the base 1, the sliding groove 7 is formed in the moving block 5, a rotating part is arranged in the telescopic part, the moving block 5 moves towards the outer side under the action of a threaded groove 15, the limiting ring 6 moves in the sliding groove 7, and the limiting ring 6 prevents the moving block 5 from falling out of the screw 8;

the rotating piece comprises a limiting ring 6, a screw 8 and a thread groove 15, the screw 8 is installed at the end of the rotating shaft 13, the limiting ring 6 is installed at the end of the screw 8, the thread groove 15 is formed in the side wall of the sliding groove 7, the screw 8 rotates, the moving block 5 moves towards the outer side under the action of the thread groove 15, the limiting ring 6 moves in the sliding groove 7, and the limiting ring 6 prevents the moving block 5 from falling out of the screw 8;

the lifter, locate base 1's bottom, the lifter includes gear 9, lift post 12, accomodate groove 10 and pulley 11, gear 9 installs the outside at double-end motor 14, it is circular-arc during lift post 12 one side, tooth is installed to one side, the groove 10 is accomodate in one side and the gear 9 meshing of lift post 12 is seted up in base 1's bottom, pulley 11 installs the bottom at lift post 12, use pulley 11 to remove, after the confirmation position, start double-end motor 14, pivot 13 begins to rotate, gear 9 rotates back drive lift post 12 and rises, make pulley 11 withdraw and accomodate in the groove 10, base 1 bottom direct contact ground.

The working principle is as follows: during the in-service use, use pulley 11 to remove, after confirming the position, start double-end motor 14, pivot 13 begins to rotate, gear 9 rotates back drive lift post 12 and rises, make pulley 11 retrieve and receive in groove 10, base 1 bottom direct contact ground, simultaneously, screw rod 8 rotates, movable block 5 moves towards the outside under the effect of thread groove 15, spacing ring 6 removes in spout 7, spacing ring 6 prevents that movable block 5 from droing out screw rod 8, movable block 5 stretches the outside of base 1 and makes base 1 bottom area of contact increase, increase frictional force, prevent that base 1 from sliding, under the support of support column 2, welding bench 4 slides at the top of support frame 3 and carries out welding operation.

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

Claims

1. The utility model provides a welding set of steel box girder tied arch bridge which characterized in that: the welding device of the steel box girder tied arch bridge comprises:

the welding device comprises a base (1), wherein a support column (2) is arranged at the top of the base (1), a support frame (3) is arranged at the top of the support column (2), and a welding table (4) is arranged at the top of the support frame (3);

the anti-skid piece comprises a rotating piece and a telescopic piece; and

the lifting piece is arranged at the bottom of the base (1).

2. The welding device for the tied arch bridge of the steel box girder according to claim 1, wherein: the support column (2) is installed at the top of the base (1), the support column (2) is provided with two groups, the support frame (3) is installed at the top of the support column (2), and the welding table (4) at the top of the support frame (3) can slide at the top of the support frame (3) for welding.

3. The welding device for the tied arch bridge of the steel box girder according to claim 2, wherein: the rotating piece comprises a double-end motor (14) and a rotating shaft (13), the double-end motor (14) is installed in the base (1), and the rotating shaft (13) is installed at two ends of the double-end motor (14).

4. The welding device for the tied arch bridge of the steel box girder according to claim 3, wherein: the telescopic piece comprises a moving block (5) and a sliding groove (7), the moving block (5) is installed at the bottom of the base (1), the sliding groove (7) is formed in the moving block (5), and a rotating piece is arranged in the telescopic piece.

5. The welding device for the tied arch bridge of the steel box girder according to claim 4, wherein: the rotating piece comprises a limiting ring (6), a screw rod (8) and a thread groove (15), the screw rod (8) is installed at the end of the rotating shaft (13), the limiting ring (6) is installed at the end of the screw rod (8), and the thread groove (15) is formed in the side wall of the sliding groove (7).

6. The welding device for the tied arch bridge of the steel box girder according to claim 3, wherein: the lifting piece comprises a gear (9), a lifting column (12), a containing groove (10) and a pulley (11), the gear (9) is installed outside the double-end motor (14), the lifting column (12) is arc-shaped when being arranged on one side, teeth are installed on one side, the groove (10) is arranged on one side of the lifting column (12) and meshed with the gear (9) and arranged at the bottom of the base (1), and the pulley (11) is installed at the bottom of the lifting column (12).