CN212292524U

CN212292524U - Tool for turning over U rib plate unit of steel box girder

Info

Publication number: CN212292524U
Application number: CN202021365374.0U
Authority: CN
Inventors: 孙蕾蕾; 袁俊; 张海涛; 张泉; 张梅艳
Original assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-01-05
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to a tool for turning over a U rib plate unit of a steel box girder, which comprises a main arm of a lifting hook; the installation department is buckled into to the decurrent level of lifting hook main arm one end, the frock still includes the U rib clamp, the U rib clamp is the setting of U type, U rib clamp one end level is extended and is formed the installation piece, installation department and installation piece pass through bolt fixed connection, be the interval setting between lifting hook main arm bottom and the U rib clamp top, first stiffening plate is installed to lifting hook main arm bottom, the lifting hook main arm is extended at both ends around the first stiffening plate, second stiffening plate and third stiffening plate are installed respectively to U rib clamp both sides inner wall, U rib clamp is all extended at both ends around both ends and the third stiffening plate around the second stiffening plate, this frock is used with the cooperation of the U floor unit of steel box girder, the effectual operation of standing up to the steel box girder of realization, guarantee U floor unit can not warp at the in-process simultaneously, avoided standing up and used tiger head card and has stood up the card trace.

Description

Tool for turning over U rib plate unit of steel box girder

Technical Field

The utility model belongs to machinery hoist field, concretely relates to U floor unit of steel case roof beam stands up and uses frock.

Background

With the development of bridges with larger and larger spans at home and abroad, the large thin-wall steel box girder is used more and more. The appearance requirement for the steel box girder preparation is also higher and higher now, how to realize higher appearance requirement, can reduce manufacturing cost again and improve production efficiency, is the problem that needs to solve urgently.

The existing U rib plate unit of the steel box girder is turned over, the side face of a steel plate is clamped by a tiger head clamp mostly, and the tiger head clamp is lifted by a crane to drive the U rib plate unit of the steel box girder to turn over. But there are problems that: the tiger head clamp has the function of realizing firm gripping by the gripping force between the claw and the steel plate, and the heavier the U rib plate unit of the steel box girder, the deeper the generated clamping mark is, the more ugly the appearance is, and the more troublesome the processing is. The tooling of the prior utility model is exactly.

Disclosure of Invention

To the problem that exists among the above-mentioned background art, the utility model provides a use with the cooperation of the U floor unit of steel case roof beam, effectual realization is to the operation of standing up of steel case roof beam, guarantees simultaneously that the U floor unit can not warp at the in-process that stands up, has avoided using tiger head card to stand up for the U floor unit of the card trace that the steel case roof beam stood up and has brought and has used the frock.

The technical scheme of the utility model as follows:

the tool for turning over the U rib plate unit of the steel box girder comprises a main hook arm; the downward level of lifting hook main arm one end is buckled and is formed the installation department, the frock still includes U rib clamp, U rib clamp is the setting of U type, U rib clamp one end level is extended and is formed the installation piece, bolt fixed connection is passed through to installation department and installation piece, be the interval setting between lifting hook main arm bottom and the U rib clamp top, first stiffening plate is installed to lifting hook main arm bottom, the lifting hook main arm is extended at both ends around the first stiffening plate, second stiffening plate and third stiffening plate are installed respectively to U rib clamp both sides inner wall, U rib clamp is all extended at both ends around both ends and the third stiffening plate around the second stiffening plate.

Preferably, one end of the main arm of the lifting hook is provided with a lifting hole.

Preferably, the surface of the mounting portion is provided with a plurality of first mounting holes in a rectangular array.

Preferably, the surface of the mounting block is provided with a plurality of second mounting holes in a rectangular array.

Preferably, a first installation groove is formed in the bottom of the main hook arm corresponding to the first reinforcing plate, and the depth of the first installation groove is equal to the thickness of the first reinforcing plate.

Preferably, the inner walls of the U-rib clamps corresponding to the second reinforcing plate and the third reinforcing plate are respectively provided with a second mounting groove and a third mounting groove, the thickness of the second reinforcing plate is equal to the depth of the second mounting groove, and the thickness of the third reinforcing plate is equal to the depth of the third mounting groove.

Has the advantages that:

the installation part and the installation block of the tool for turning over the U rib plate unit of the steel box girder are fixedly connected through the bolt, so that the main arm of the lifting hook and the U rib clamp form a whole body which is sleeved on the welded U rib plate unit of the steel box girder, and the U rib plate unit of the steel box girder can be turned over by lifting the main arm of the lifting hook by using the crane; first stiffening plate is installed to the lifting hook main arm bottom of setting, the lifting hook main arm is extended at both ends around the first stiffening plate, second stiffening plate and third stiffening plate are installed respectively to U rib clamp both sides inner wall, U rib clamp is all extended at both ends around both ends and the third stiffening plate around the second stiffening plate, through first stiffening plate, the contact area of whole frock and U floor unit can be increased to the not strong board of second and third stiffening plate, thereby guarantee that the atress is even at hoist and mount in-process, can not produce the deformation, the U floor unit of the card trace that has avoided using the tiger head card to stand up for the steel box girder simultaneously stands up and uses the frock.

Drawings

Fig. 1 is a schematic view of the main structure of the tool for turning over the U rib plate unit of the steel box girder.

Fig. 2 is a main view structure schematic diagram of a main arm of a lifting hook of the tool for turning over the U rib plate unit of the steel box girder.

Fig. 3 is a left view structural schematic diagram of a main arm of a lifting hook of the tool for turning over the U rib plate unit of the steel box girder.

Fig. 4 is the structural schematic diagram of the U rib clamp of the tool for turning over the U rib plate unit of the steel box girder.

Fig. 5 is the left side view structure diagram of the U rib clamp of the tool for turning over the U rib plate unit of the steel box girder.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-5, the tool for turning over the U rib plate unit of the steel box girder of the utility model comprises a main arm 1 of a hook; one end of the main hook arm 1 is bent downwards horizontally to form a mounting part 2, and the mounting part 2 and the main hook arm 1 are integrally formed by adopting alloy Q345D. The frock still includes U rib clamp 3, U rib clamp 3 is the setting of U type, 3 one end horizontal extension of U rib clamp forms installation piece 4, and installation piece 4 and U rib clamp adopt alloy Q345D integrated into one piece. Installation department 2 and installation piece 4 pass through bolt 5 fixed connection, and the bolt adopts high strength bolt, guarantees that the installation is firm. The bottom of the main hook arm 1 and the top of the U-rib hoop 3 are arranged at intervals, and the distance between the main hook arm 1 and the U-rib hoop 3 is larger than the thickness of a base material of the U-rib plate unit. A first reinforcing plate 6 is installed at the bottom of the main arm 1 of the lifting hook and fixed in a welding mode. The front end and the rear end of the first reinforcing plate 6 extend out of the main hook arm 1, so that the contact area between the main hook arm 1 and the U rib plate unit can be increased, and the stress is kept uniform. And a second reinforcing plate 7 and a third reinforcing plate 8 are respectively installed on the inner walls of the two sides of the U-rib hoop 3 and are fixed in a welding mode. U rib clamp 3 is all extended at both ends around second stiffening plate 7 and the third stiffening plate 8 both ends, can increase the area of contact of U rib clamp 3 and U floor unit.

And a lifting hole 9 is formed at one end of the main arm 1 of the lifting hook and used for placing a steel cable of a crane.

The surface of the mounting part 2 is provided with a plurality of first mounting holes 10 in a rectangular array. The surface of the mounting block 4 is provided with a plurality of second mounting holes 11 in a rectangular array, and the first mounting holes 10 and the second mounting holes are correspondingly arranged (both are penetrated by bolts 5), so that the firm connection between the main arm 1 of the lifting hook and the U-rib hoop 3 is ensured.

The bottom of the main hook arm 1 corresponding to the first reinforcing plate 6 is provided with a first mounting groove 12, and the depth of the first mounting groove 12 is equal to the thickness of the first reinforcing plate 6, so that the first reinforcing plate 6 is mounted on the rear surface of the bottom of the main hook arm 1 in a parallel and level manner.

The U rib clamp 3 inner wall that second stiffening plate 7 and third stiffening plate 8 correspond is provided with second mounting groove 13 and third mounting groove 14 respectively, the thickness of second stiffening plate 7 equals with the degree of depth of second mounting groove 13, the thickness of third stiffening plate 8 equals with the degree of depth of third mounting groove 14 for second stiffening plate 7 and third stiffening plate 8 are installed at U rib clamp 3 inner wall rear surface parallel and level.

The utility model discloses a theory of operation: sleeving U rib hoops on U rib plate units of the steel box girder to be turned over, and paying attention to paired use, namely sleeving two U rib hoops at two ends of each U rib plate unit; whether the position of the reinforcing plate is proper or not is checked, and the reinforcing plate is attached to the U rib plate unit; the main arm of the lifting hook is connected with the U-rib hoop through a high-strength bolt, and the crane is connected with the main arm of the lifting hook through a steel cable, so that the lifting condition is met; the lifting crane drives the U rib plate unit to lift through an integral combined tool of a main arm of the lifting hook and the U rib hoop; when the U rib plate unit reaches the highest point, the user turns over to the other side.

The above operation satisfies the turning-over function of various U rib plate units. More importantly, the turnover function is realized, the damage of the clamping marks to the parent metal is avoided, the production efficiency is improved, and the turnover device has high practical and popularization values. The method can play a good reference role in the subsequent manufacturing process of similar large steel box girders.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A tool for turning over a U rib plate unit of a steel box girder comprises a main hook arm (1); the method is characterized in that: one end of the main hook arm (1) is bent downwards horizontally to form an installation part (2), the tool further comprises a U-rib hoop (3), the U-shaped rib hoop (3) is arranged in a U shape, one end of the U-shaped rib hoop (3) extends horizontally to form an installation block (4), the mounting part (2) is fixedly connected with the mounting block (4) through a bolt (5), the bottom of the main arm (1) of the lifting hook and the top of the U-shaped rib hoop (3) are arranged at intervals, a first reinforcing plate (6) is arranged at the bottom of the main hook arm (1), the front end and the rear end of the first reinforcing plate (6) extend out of the main hook arm (1), the inner walls of two sides of the U-shaped rib hoop (3) are respectively provided with a second reinforcing plate (7) and a third reinforcing plate (8), u rib clamp (3) all extend from both ends around second stiffening plate (7) and third stiffening plate (8).

2. The tool for turning over the U rib plate unit of the steel box girder as recited in claim 1, wherein: and a lifting hole (9) is formed in one end of the main arm (1) of the lifting hook.

3. The tool for turning over the U rib plate unit of the steel box girder as recited in claim 1, wherein: the surface of the mounting part (2) is provided with a plurality of first mounting holes (10) in a rectangular array.

4. The tool for turning over the U rib plate unit of the steel box girder as recited in claim 1, wherein: the surface of the mounting block (4) is provided with a plurality of second mounting holes (11) in a rectangular array.

5. The tool for turning over the U rib plate unit of the steel box girder as recited in claim 1, wherein: the bottom of the main hook arm (1) corresponding to the first reinforcing plate (6) is provided with a first installation groove (12), and the depth of the first installation groove (12) is equal to the thickness of the first reinforcing plate (6).

6. The tool for turning over the U rib plate unit of the steel box girder as recited in claim 1, wherein: u rib clamp (3) inner wall that second stiffening plate (7) and third stiffening plate (8) correspond is provided with second mounting groove (13) and third mounting groove (14) respectively, the thickness of second stiffening plate (7) equals with the degree of depth of second mounting groove (13), the thickness of third stiffening plate (8) equals with the degree of depth of third mounting groove (14).