CN212953849U

CN212953849U - Steel box girder rolling and turning-over device

Info

Publication number: CN212953849U
Application number: CN202021542727.XU
Authority: CN
Inventors: 宋朴; 王伟组; 郭继涛; 杨哲; 贺伟达
Original assignee: (CRTB) TYCOON INDUSTRIAL DEVELOPMENT CO LTD
Current assignee: (CRTB) TYCOON INDUSTRIAL DEVELOPMENT CO LTD
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-13
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a steel box girder rolls and stands up device, including distribute in the first rolling device and the second rolling device at steel box girder both ends and with first rolling device and second rolling device connect the locking device who is used for locking the steel box girder, first rolling device and second rolling device include first disc and the second disc, the connection that the interval set up respectively a plurality of support piece of first disc and second disc, first disc and second disc have the through-hole that is used for the steel box girder to pass. The utility model provides a steel box girder roll turning-over device has solved the safety problem that stands up in steel box girder "flip-chip method" work progress, has improved work efficiency, has reduced construction cost.

Description

Steel box girder rolling and turning-over device

Technical Field

The utility model relates to a steel bridge makes technical field, in particular to steel box girder rolls and stands up device.

Background

With the continuous development of economic construction in China, the infrastructure construction of China also enters a vigorous development stage. Especially in the southwest area, because of the limitation of topography, the steel box girder bridges with large span, large section and multiple box chambers are more and more, and the manufacturing process is more and more complicated and precise. Taking a Yuchu high-speed certain steel box girder bridge under construction at present as an example, the bridge has a simple span structure, the span reaches 70 meters, the height of the girder reaches 3.3 meters, and the span and the section are rare. The bridge is of a single-box three-chamber structure with an equal section and is divided into 7 segments and 42 blocks. The maximum individual block height is 3.3 meters, width is 3.2 meters, length is 10 meters, and weight is about 30 tons. The bridge adopts a 'flip-chip method' in the manufacturing process in a factory, and the welding is continued after the block body is integrally turned over after the total assembly is finished. Generally, the conventional turning-over method is to weld lifting lugs on a beam web and a top bottom plate and complete turning-over by matching large and small hooks of a portal crane. The turning-over method is low in construction efficiency, and in the turning-over process of the beam body, large impact force is generated on the gantry crane, and large potential safety hazards exist on the crane and the beam body.

Therefore, a set of safe and efficient turnover device for the large-section steel box girder block is designed, so that the production efficiency in a steel box girder workshop can be improved, the potential safety hazard of the steel structure bridge in the turnover process can be eliminated, and the safety risk is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steel box girder roll turning-over device, solved the safety problem that stands up in steel box girder "flip-chip method" work progress, improved work efficiency, reduced construction cost.

In order to solve the technical problem, the technical scheme of the utility model as follows:

the utility model provides a steel box roof beam rolls and stands up device, including distribute in first rolling device and the second rolling device of steel box roof beam both ends and with first rolling device and second rolling device are connected and are used for locking the locking device of steel box roof beam, first rolling device and second rolling device respectively include first disc and the second disc that the interval set up, connect a plurality of support piece of first disc and second disc, first disc and second disc have the through-hole that is used for the steel box roof beam to pass.

Further, locking device is including locating between first disc and the second disc and the mounting that the butt steel box girder set up, locate first disc and second disc and distribute in a plurality of mounting panels at through-hole edge, locate the mounting panel is used for locking the fastener of mounting.

Further, the mounting plate is arranged on the inner side of the first disc and the second disc.

Further, the fixing piece is made of I-steel.

Further, the fastener is a lead screw.

Further, the through hole is square.

Compared with the prior art, the utility model provides a steel case roof beam rolls turning device, beneficial effect lies in:

the utility model provides a steel box girder roll turning-over device, including distributing in the first rolling device and the second rolling device at steel box girder both ends and be connected the locking device who is used for locking the steel box girder with first rolling device and second rolling device. In the overturning process, firstly, the steel box girder block is integrally placed on the bench by using the portal crane, so that the steel box girder block is separated from the ground, the first rolling device and the second rolling device are sleeved on two sides of the steel box girder by using the portal crane, and the steel box girder is locked and used; the gantry crane lifts the turnover device, takes away the bench, places the turnover device on a flat ground, utilizes the steel wire rope to pull to turn over the whole steel box girder block, utilizes the gantry crane to lift the turnover device after the turnover is completed, places the steel box girder on the bench, takes out the first rolling device and the second rolling device, and the steel box girder is turned over. Therefore, the rolling turnover device for the steel box girder provided by the utility model can avoid the welding and cutting processes of the turnover lifting lug in the prior art, improve the construction efficiency and reduce the damage to the parent metal; meanwhile, the impact on the gantry crane and the steel box girder in the turnover process is avoided, and the safety risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the steel box girder rolling and turning-over device of the present invention;

fig. 2 is a schematic sectional structure view along the line a-a in the steel box girder rolling and overturning device shown in fig. 1.

Detailed Description

In order to make the technical solution in the embodiments of the present invention better understood and make the above objects, features and advantages of the present invention more obvious and understandable, the following description of the embodiments of the present invention is provided with reference to the accompanying drawings.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of the rolling and turning-over device for a steel box girder of the present invention; fig. 2 is a schematic sectional structure view along the line a-a in the steel box girder rolling and overturning device shown in fig. 1. The utility model discloses a steel box girder rolls and stands up device 100 includes relative first rolling device 1 and the second rolling device 2 that sets up and is connected the locking device 3 that is used for locking the steel box girder with first rolling device 1 and second rolling device 2. The first rolling device 1 and the second rolling device 2 are respectively arranged at two ends of the steel box girder 200, and when the first rolling device 1 and the second rolling device 2 roll, the steel box girder 200 is driven to roll integrally.

In this embodiment, the first rolling device 1 and the second rolling device 2 have the same structure, and respectively include a first disk 11 and a second disk 12 that are arranged at intervals, and a plurality of supporting members 13 that connect the first disk 11 and the second disk 12, and the plurality of supporting members 13 connect the first disk 11 and the second disk 12 into a whole, so that the rigidity and strength of the first rolling device 1 and the second rolling device 2 can be ensured.

The centers of the first disc 11 and the second disc 12 are provided with a through hole 111, and in the rolling process of the steel box girder, the steel box girder passes through the through hole 111, so that the first rolling device 1 and the second rolling device 2 are respectively sleeved at two ends of the steel box girder 200. In this embodiment, the through hole 111 is designed to be square according to the specific structure of the steel box girder.

The locking device 3 comprises a fixing member 31 which is arranged between the first disc 11 and the second disc 12 and is abutted to the steel box girder, a plurality of mounting plates 32 which are arranged on the first disc 11 and the second disc 12 and are distributed at the edge of the through hole 111, and a fastening member 33 which is arranged on the mounting plates 32 and is used for locking the fixing member 31.

In this embodiment, the fixing member 31 is made of i-steel, and when there is a gap between the steel box girder and the hole walls of the first disk 11 and the second disk 12, the fixing member 31 is placed and locked by the fastening member 33, so that the steel box girder cannot move. Typically, the fixing 31 is distributed on three sides of the steel box girder, and the other side of the steel box girder is in contact with the through hole wall. In the drawing, the fixing members 31 are distributed on two side surfaces of the steel box girder, and the other two side surfaces of the steel box girder abut against the inner wall of the through hole.

In this embodiment, the mounting plate 32 is disposed inside the first disk 11 and the second disk 12, wherein the inside of the first disk 11 and the inside of the second disk 12 are the sides facing each other. In this embodiment, the fastener 33 is a lead screw.

The utility model provides a steel box girder roll turning-over device, operating method as follows:

firstly, integrally placing a steel box girder block on a bench by using a portal crane to separate the steel box girder block from the ground;

sleeving a first rolling device and a second rolling device on two sides of a steel box girder by using a portal crane, placing a fixing piece between the steel box girder and a gap of a through hole wall, and locking the steel box girder by using a lead screw;

the gantry crane lifts the turnover device, takes the bench away, places the turnover device on a flat ground, and utilizes the steel wire rope to pull the steel box girder block to turn over integrally;

and after the turnover is finished, the gantry crane is used for lifting the turnover device, the steel box girder is placed on the bench, the first rolling device and the second rolling device are taken out, and the turnover of the steel box girder is finished.

The rolling turnover device for the steel box girder provided by the utility model can avoid the welding and cutting processes of the turnover lifting lug in the prior art, improve the construction efficiency and reduce the damage to the parent metal; meanwhile, the impact on the gantry crane and the steel box girder in the turnover process is avoided, and the safety risk is reduced.

The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments will occur to those skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. The steel box girder rolling and turning-over device is characterized by comprising a first rolling device and a second rolling device which are distributed at two ends of a steel box girder, and a locking device which is connected with the first rolling device and the second rolling device and used for locking the steel box girder, wherein the first rolling device and the second rolling device respectively comprise a first disc and a second disc which are arranged at intervals, and a plurality of supporting pieces which are connected with the first disc and the second disc, and the first disc and the second disc are provided with through holes for the steel box girder to pass through.

2. The steel box girder rolling and overturning device as claimed in claim 1, wherein the locking device comprises a fixing member disposed between the first disc and the second disc and abutting against the steel box girder, a plurality of mounting plates disposed on the first disc and the second disc and distributed at the edge of the through hole, and a fastening member disposed on the mounting plates and used for locking the fixing member.

3. The steel box girder rolling and overturning device as claimed in claim 2, wherein the mounting plate is arranged inside the first disc and the second disc.

4. The steel box girder rolling and overturning device as claimed in claim 2, wherein the fixing member is an I-steel.

5. The steel box girder rolling and overturning device as claimed in claim 2, wherein the fastening member is a lead screw.

6. The steel box girder rolling and overturning device as claimed in claim 1, wherein the through hole is square.