CN219240317U

CN219240317U - Large-span bridge girder steel concatenation rack

Info

Publication number: CN219240317U
Application number: CN202320877841.5U
Authority: CN
Inventors: 乐建冬; 曹治香; 曹洲畅; 曹宗道; 潘盛明
Original assignee: Hubei Jiazhong Electromechanical Engineering Co ltd
Current assignee: Hubei Jiazhong Electromechanical Engineering Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-06-23
Anticipated expiration: 2033-04-17

Abstract

The utility model provides a large-span bridge steel beam splicing rack, which relates to the technical field of steel beam splicing and comprises a splicing workbench, a base and steel beam ascending workbench, wherein the bases are arranged on two sides of the splicing workbench, one side of the bottom of the steel beam ascending workbench is rotationally connected with the base, one end, close to the splicing workbench, of the steel beam ascending workbench is provided with an ascending guide roller, two sides above the splicing workbench are provided with ascending hoisting mechanisms, a splicing workbench groove is arranged in the middle of the splicing workbench, grooves are formed in the splicing workbench on two sides of the splicing workbench groove, and a moving mechanism is arranged in the grooves; according to the utility model, the steel beams to be spliced can be pulled to the splicing workbench by using simple pulling equipment under the action of the uplink guide rollers, a large hoisting equipment is not required to be used for hoisting the steel beams in the process, and meanwhile, the process of transferring the steel beams to the splicing workbench is carried out on the steel beam uplink workbench and the splicing workbench, so that the operation safety of a construction site is ensured.

Description

Large-span bridge girder steel concatenation rack

Technical Field

The utility model relates to the technical field of steel beam splicing, in particular to a large-span bridge steel beam splicing rack.

Background

The steel structure bridge is mainly applied to coastal, navigation and municipal overpass overpasses at present, and the structural types of the steel structure bridge are suspension bridges, cable-stayed bridges and box girder bridges. The steel structure bridge has the advantages of high strength, light weight, assembled construction, recoverability and the like. But is limited by the limitation of large relief of mountainous terrain, poor transportation conditions and long transportation distance away from a production factory, and the steel structure bridge cannot be well popularized in mountainous areas. Because the standard span steel-concrete I-steel composite beam is applied for the first time in Guizhou mountain areas, the standard span steel-concrete I-steel composite beam is limited by transportation conditions, and the steel beam is required to be assembled by transporting parts to a construction site, and is erected and installed after the assembly is completed.

Bridge girder steel concatenation rack among the prior art need the reason large-scale crane to hoist the girder steel to the rack when transporting the girder steel to rack top, and the crane lifts by crane the girder steel and has following shortcoming when carrying out the concatenation on the rack: the suspended steel beam after hoisting has a falling risk on a construction site, and the operation safety of the construction site is affected. Therefore, the utility model provides a large-span bridge steel beam splicing rack to solve the defects in the prior art.

Disclosure of Invention

The utility model aims to solve the problems, and provides a large-span bridge steel beam splicing rack, which can utilize simple traction equipment to draw a steel beam to be spliced onto a splicing workbench under the action of an uplink guide roller, so that large hoisting equipment is not required to be used for hoisting the steel beam in the process, and meanwhile, the process of transferring the steel beam to the splicing workbench is carried out on the steel beam uplink workbench and the splicing workbench, so that the operation safety of a construction site is ensured.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a large-span bridge girder steel concatenation rack, includes splice table, base and girder steel ascending table, splice table both sides are equipped with the base, the base top is equipped with girder steel ascending table, girder steel ascending table bottom one side is connected with the base rotation, girder steel ascending table is close to splice table's one end and is equipped with the ascending deflector roll, splice table top both sides are equipped with ascending hoisting mechanism, ascending hoisting mechanism lower extreme and splice table lateral wall installation, girder steel ascending table is close to splice table's one end top symmetry and is equipped with the lug, ascending hoisting mechanism is connected with the lug, splice table intermediate department is equipped with splice working groove, be equipped with the recess on the splice table of splice working groove both sides, be equipped with moving mechanism in the recess.

The further improvement is that: the lifting mechanism comprises a lifting frame, a rotating shaft, a lifting motor, a winding roller and a steel cable, wherein the rotating shaft is rotatably arranged on the lifting frame, the winding roller is symmetrically arranged on the rotating shaft, the steel cable is arranged on the winding roller, the lower end of the steel cable is connected with the lifting lug, the lifting motor is arranged on the lifting frame, and the lifting motor drives the rotating shaft.

The further improvement is that: the moving mechanism comprises a first hydraulic cylinder, a bracket and a moving roller, wherein the first hydraulic cylinder is arranged in the groove, a plurality of groups of the first hydraulic cylinders are arranged, the bracket is arranged at the upper end of each group of the first hydraulic cylinders, the moving roller is rotatably arranged in the bracket, and a plurality of groups of the moving rollers are arranged.

The further improvement is that: the steel beam lifting workbench is characterized in that a moving groove is formed in the steel beam lifting workbench, baffles are symmetrically arranged in the moving groove, an installation groove is formed in the splicing workbench, two groups of second hydraulic cylinders are arranged in the installation groove, and the two groups of second hydraulic cylinders are respectively connected with one side of the lower end of each baffle.

The further improvement is that: the steel beam ascending workbench on one side of the movable groove is symmetrically provided with fixing plates, one side of each fixing plate is provided with a third hydraulic cylinder, and the output end of each third hydraulic cylinder is provided with a limiting plate.

The further improvement is that: the assembly plate is characterized in that assembly plates are arranged above and below one side of the limiting plate, limiting guide rollers are rotatably arranged between the two groups of assembly plates, and a plurality of groups of limiting guide rollers are arranged.

The beneficial effects of the utility model are as follows: according to the utility model, the steel beam ascending workbench, the ascending guide roller and the ascending lifting mechanism are arranged, the gradient of the steel beam ascending workbench can be adjusted by the ascending lifting mechanism, one end of the steel beam ascending workbench is in butt joint with the splicing workbench, the steel beam to be spliced can be pulled onto the splicing workbench by using simple traction equipment under the action of the ascending guide roller, meanwhile, the moving mechanism on the splicing workbench can facilitate the steel beam to move on the splicing workbench, the steel beam is not required to be lifted by using large lifting equipment in the process, and meanwhile, the steel beam transferring process is carried out on the steel beam ascending workbench and the splicing workbench, so that the operation safety of a construction site is ensured.

Drawings

FIG. 1 is a schematic diagram of the front view of the structure of the present utility model;

FIG. 2 is a schematic top cross-sectional view of a second hydraulic cylinder mounting structure of the present utility model;

FIG. 3 is a schematic view of a cross-sectional front view of the movement mechanism of the present utility model;

fig. 4 is a schematic diagram of the working principle of the structure of the steel beam uplink workbench.

Wherein: 1. splicing a workbench; 2. a base; 3. a steel beam ascending workbench; 4. an uplink guide roller; 5. an ascending lifting mechanism; 6. lifting lugs; 7. splicing the working grooves; 8. a groove; 9. a lifting frame; 10. a rotating shaft; 11. lifting a motor; 12. a wind-up roll; 13. a wire rope; 14. a first hydraulic cylinder; 15. a bracket; 16. a moving roller; 17. a moving groove; 18. a baffle; 19. a mounting groove; 20. a second hydraulic cylinder; 21. a fixing plate; 22. a third hydraulic cylinder; 23. a limiting plate; 24. an assembly plate; 25. and limiting the guide roller.

Detailed Description

The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

Example 1

According to the fig. 1-4, this embodiment provides a large-span bridge girder steel concatenation rack, including concatenation workstation 1, base 2 and girder steel ascending workstation 3, concatenation workstation 1 both sides are equipped with base 2, the base 2 top is equipped with girder steel ascending workstation 3, girder steel ascending workstation 3 bottom one side is connected with base 2 rotation, girder steel ascending workstation 3 is close to the one end of concatenation workstation 1 and is equipped with ascending deflector roll 4, concatenation workstation 1 top both sides are equipped with ascending hoisting mechanism 5, ascending hoisting mechanism 5 lower extreme and concatenation workstation 1 lateral wall installation, girder steel ascending workstation 3 is close to the one end top symmetry of concatenation workstation 1 and is equipped with lug 6, ascending hoisting mechanism 5 is connected with lug 6, concatenation workstation 1 intermediate position is equipped with concatenation work groove 7, be equipped with recess 8 on the concatenation workstation 1 of concatenation work groove 7 both sides, be equipped with moving mechanism in the recess 8.

When the splicing bench is used for splicing two groups of beam steels, the two groups of steel beams are firstly respectively arranged above the two groups of steel beam ascending work tables 3, one ends of the steel beams are kept to be positioned on the ascending guide rails 4, then the two groups of steel beams are respectively pulled by the two traction devices, the ascending lifting mechanism 5 is started before the steel beams are pulled by the traction devices, one ends of the steel beam ascending work tables 3 are lifted to be matched with the splicing work tables 1 by the ascending lifting mechanism 5, then the traction devices start to carry out traction, when the steel beams are pulled onto the splicing work tables 1, the moving mechanism is controlled to move out of the groove 8, at the moment, the steel beams can move more quickly under the cooperation of the moving mechanism, when the splicing ends of the two groups of steel beams move to the position of the splicing work grooves 7, the moving mechanism is controlled to reset into the groove 8, at the moment, the steel beams can stably stay on the splicing work tables 1, and an operator can finish the splicing work of the two groups of steel beams at the splicing work grooves 7.

The lifting mechanism 5 comprises a lifting frame 9, a rotating shaft 10, a lifting motor 11, a winding roller 12 and a steel cable 13, wherein the rotating shaft 10 is rotatably arranged on the lifting frame 9, winding rollers 12 are symmetrically arranged on the rotating shaft 10, the winding rollers 12 are provided with the steel cable 13, the lower end of the steel cable 13 is connected with the lifting lug 6, the lifting motor 11 is arranged on the lifting frame 9, and the lifting motor 11 drives the rotating shaft 10. When the ascending lifting mechanism 5 operates, the lifting motor 11 is started to drive the rotating shaft 10 to rotate, so that the two groups of winding rollers 12 are driven to rotate, and winding and unwinding control of the steel cable 13 is realized.

The moving mechanism comprises a first hydraulic cylinder 14, a bracket 15 and a moving roller 16, wherein the first hydraulic cylinder 14 is arranged in the groove 8, a plurality of groups of the first hydraulic cylinders 14 are arranged, the upper ends of the plurality of groups of the first hydraulic cylinders 14 are provided with the bracket 15, the moving roller 16 is arranged in the bracket 15 in a rotating mode, a plurality of groups of the moving roller 16 are arranged, and the height of the bracket 15 in the groove 8 is controlled through the first hydraulic cylinders 14.

Example two

The steel beam ascending workbench 3 is provided with a movable groove 17, baffle plates 18 are symmetrically arranged in the movable groove 17, the splicing workbench 1 is internally provided with a mounting groove 19, second hydraulic cylinders 20 are arranged in the mounting groove 19, two groups of second hydraulic cylinders 20 are arranged, and the two groups of second hydraulic cylinders 20 are respectively connected with one side of the lower end of each baffle plate 18. According to the utility model, the baffle 18 is arranged to limit one end of the steel beam when the steel beam is completely positioned on the steel beam ascending workbench 3, so that the steel beam is prevented from sliding off from the steel beam ascending workbench 3 after the gradient change of the steel beam ascending workbench 3, and the traction stability of the steel beam on the steel beam ascending workbench 3 is improved.

The steel beam ascending workbench 3 on one side of the movable groove 17 is symmetrically provided with a fixed plate 21, one side of the fixed plate 21 is provided with a third hydraulic cylinder 22, and the output end of the third hydraulic cylinder 22 is provided with a limiting plate 23. The utility model discloses a steel beam lifting table, including girder lifting table 3, limiting plate 23, mounting plate 24 is all equipped with to limiting plate 23 one side top and below, two sets of it is equipped with limiting guide roller 25 to rotate between the mounting plate 24, limiting guide roller 25 is equipped with the multiunit, can realize prescribing a limit to girder steel on girder steel lifting table 3 traction movement's passageway width through setting up limiting plate 23, and cooperation limiting guide roller 25 can make the girder steel accurate by traction to splice table 1 intermediate position department.

According to the utility model, by arranging the steel beam ascending workbench 3, the ascending guide roller 4 and the ascending lifting mechanism 5, the gradient of the steel beam ascending workbench 3 can be adjusted by utilizing the ascending lifting mechanism 5, so that one end of the steel beam ascending workbench 3 is in butt joint with the splicing workbench 1, the steel beam to be spliced can be pulled onto the splicing workbench 1 by utilizing simple traction equipment under the action of the ascending guide roller 4, meanwhile, the steel beam can be conveniently moved on the splicing workbench 1 by the moving mechanism on the splicing workbench 1, a large-scale lifting equipment is not required to be used for lifting the steel beam in the process, and meanwhile, the steel beam is transferred to the splicing workbench 1 on the steel beam ascending workbench 3 and the splicing workbench 1, so that the operation safety of a construction site is ensured.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a large-span bridge girder steel concatenation rack which characterized in that: including concatenation workstation (1), base (2) and girder steel ascending workstation (3), concatenation workstation (1) both sides are equipped with base (2), base (2) top is equipped with girder steel ascending workstation (3), girder steel ascending workstation (3) bottom one side is connected with base (2) rotation, girder steel ascending workstation (3) are close to the one end of concatenation workstation (1) and are equipped with ascending deflector roll (4), concatenation workstation (1) top both sides are equipped with ascending hoisting mechanism (5), ascending hoisting mechanism (5) lower extreme and concatenation workstation (1) lateral wall installation, one end top symmetry that girder steel ascending workstation (3) are close to concatenation workstation (1) is equipped with lug (6), ascending hoisting mechanism (5) are connected with lug (6), concatenation workstation (1) middle department is equipped with concatenation work groove (7), be equipped with recess (8) on concatenation workstation (1) of concatenation work groove (7) both sides, be equipped with moving mechanism in recess (8).

2. The large span bridge steel girder splicing rack of claim 1, wherein: ascending hoist mechanism (5) are including lifting frame (9), pivot (10), lift by crane motor (11), wind-up roll (12) and cable wire (13), it is equipped with pivot (10) to rotate on lifting frame (9), the symmetry is equipped with wind-up roll (12) on pivot (10), be equipped with cable wire (13) on wind-up roll (12), cable wire (13) lower extreme is connected with lug (6), be equipped with on lifting frame (9) and lift by crane motor (11), lift by crane motor (11) drive pivot (10).

3. The large span bridge steel girder splicing rack of claim 1, wherein: the moving mechanism comprises a first hydraulic cylinder (14), a bracket (15) and a moving roller (16), wherein the first hydraulic cylinder (14) is arranged in the groove (8), a plurality of groups of the first hydraulic cylinders (14) are arranged, the bracket (15) is arranged at the upper end of each of the first hydraulic cylinders (14), the moving roller (16) is arranged in the bracket (15) in a rotating mode, and a plurality of groups of the moving roller (16) are arranged.

4. The large span bridge steel girder splicing rack of claim 1, wherein: the steel beam lifting workbench is characterized in that a moving groove (17) is formed in the steel beam lifting workbench (3), baffles (18) are symmetrically arranged in the moving groove (17), an installation groove (19) is formed in the splicing workbench (1), second hydraulic cylinders (20) are arranged in the installation groove (19), two groups of second hydraulic cylinders (20) are arranged, and the two groups of second hydraulic cylinders (20) are connected with one side of the lower end of each baffle (18).

5. The large span bridge steel girder splicing rack of claim 4, wherein: the steel beam ascending workbench (3) on one side of the movable groove (17) is symmetrically provided with a fixed plate (21), one side of the fixed plate (21) is provided with a third hydraulic cylinder (22), and the output end of the third hydraulic cylinder (22) is provided with a limiting plate (23).

6. The large span bridge steel girder splicing rack as claimed in claim 5, wherein: the upper part and the lower part of one side of the limiting plate (23) are respectively provided with an assembly plate (24), two groups of the assembly plates (24) are rotatably provided with limiting guide rollers (25), and the limiting guide rollers (25) are provided with a plurality of groups.