CN219604180U

CN219604180U - Steel box girder splicing pushing device

Info

Publication number: CN219604180U
Application number: CN202320645623.9U
Authority: CN
Inventors: 李秉海; 刘敏; 蒋放; 陈孟鸿; 谭超; 王云峰
Original assignee: China Construction Fifth Engineering Bureau Co Ltd
Current assignee: China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-08-29
Anticipated expiration: 2033-03-28

Abstract

The utility model belongs to the field of bridge construction, in particular to a steel box girder splicing pushing device, which comprises a steel box girder, a box body and a motor fixedly arranged at one side of the box body; the output end of the motor penetrates through the box body and is in threaded connection with moving plates through a threaded mechanism, two moving plates are arranged, a rotating plate is connected between the two moving plates through bearings in a rotating mode, temporary piers are fixedly connected to two sides of the top of the rotating plate through jacks, the bottom of the inner surface of the box body is in threaded connection with a lifting plate through an adjusting mechanism, a limiting hole is formed in the bottom of the rotating plate, and a protruding rod matched with the limiting hole is fixedly connected to the top of the lifting plate; the lifting plate is driven to move downwards to the bottommost part of the box body through the screw rod, so that the protruding rod is separated from the limiting hole, the rotating plate, the jack and the temporary pier are conveniently rotated downwards to be stored in the box body, the occupied space can be reduced, the lifting plate is convenient to transport and move, and the practicability is strong.

Description

Steel box girder splicing pushing device

Technical Field

The utility model relates to the field of bridge construction, in particular to a steel box girder splicing pushing device.

Background

The steel box girder, also called steel plate box girder, is a common structural form for long span bridges, is generally used on bridges with larger spans, is called as a steel box girder because of being like a box, and is a large number of continuous steel box girder bridges in the fields of highways, urban traffic, railways and the like along with the continuous improvement of the technical level of bridge design and construction in China, and is formed by splicing a plurality of groups of steel box girders, wherein pushing construction is generally needed after the steel box girder bridges are spliced and assembled.

The pushing device is usually composed of temporary piers, jacks and other structures, and in actual construction, the beam body is usually processed in sections and longitudinally connected into a whole, the horizontal jacks apply force, the beams are pushed forward section by means of slide ways, sliding blocks and the like, and the bridge is usually installed by transporting the pushing device to a construction site on the premise of carrying out pushing construction.

Because the pushing device is generally provided with a transverse driving device and a vertical driving device, the pushing device is further generally large in size, and occupies a relatively large space when the pushing device is transported, but the existing steel box girder pushing device cannot be adjusted, and further cannot reduce the occupied space, so that the pushing device is inconvenient to transport, and therefore the steel box girder splicing pushing device is provided for the problems.

Disclosure of Invention

In order to overcome the defects in the prior art and solve the problems, the utility model provides a steel box girder splicing pushing device.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a steel box girder splicing pushing device, which comprises a steel box girder, a box body and a motor fixedly arranged at one side of the box body; the output of motor runs through the box and has the movable plate through screw mechanism threaded connection, the quantity of movable plate is provided with two, two be connected with the rotor plate through the bearing rotation between the movable plate, the both sides at rotor plate top are all through the temporary mound of jack fixedly connected with, the bottom of box internal surface has the lifter plate through adjustment mechanism threaded connection, spacing hole has been seted up to the bottom of rotor plate, the top fixedly connected with of lifter plate and spacing hole looks adaptation's protruding pole.

Preferably, the screw thread mechanism comprises a screw rod, one end of the screw rod is rotationally connected with the bottom of the middle part of one side of the inner surface of the box body through a bearing, the output end of the motor penetrates through the box body and is fixedly connected with the other end of the screw rod, and a limiting rod is fixedly connected with the bottom between two walls of the box body and positioned on the front side and the back side of the screw rod.

Preferably, the middle parts of one side of the two moving plates are in threaded connection with the outer surface of the screw rod through threaded holes, and the front and the back of one side of the moving plates are in sliding connection with the outer surface of the limiting rod through sliding holes.

Preferably, the adjusting mechanism comprises a screw, the bottom end of the screw is rotationally connected with the front surface of the bottom of the inner cavity of the box body through a bearing, the back of the bottom of the inner cavity of the box body is fixedly connected with a vertical rod, the front surface of the bottom of the lifting plate is in threaded connection with the outer surface of the screw through a threaded hole, and the back of the bottom of the lifting plate is in sliding connection with the outer surface of the vertical rod through a sliding hole.

Preferably, the number of the limiting holes and the number of the protruding rods are all provided with a plurality of limiting holes and protruding rods.

Preferably, the top fixedly connected with slipmat of interim mound, the top of slipmat is laminated with the bottom of steel case roof beam mutually.

The utility model has the advantages that:

1. according to the utility model, the lifting plate is driven by the screw rod to move downwards to the bottommost part of the box body, so that the protruding rod is separated from the limiting hole on the rotating plate, and the rotating plate, the jack and the temporary pier are conveniently rotated downwards and accommodated in the box body, so that the occupied space can be reduced, the transportation and the movement of the lifting plate are convenient, and the practicability is higher;

2. according to the utility model, the friction force of the temporary pier when pushing the steel box girder can be increased through the anti-slip pad, so that the situation that the temporary pier slips when pushing the steel box girder is avoided, and further the pushing construction implementation area can be smoother.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a schematic view of the structural connection of the temporary piers of the present utility model;

FIG. 3 is a schematic diagram of the structural connection of the case of the present utility model;

FIG. 4 is a schematic view of the structural connection of the screw of the present utility model;

fig. 5 is a schematic structural connection diagram of the lifter plate according to the present utility model.

In the figure: 1. a steel box girder; 2. a case; 3. a motor; 4. a moving plate; 5. a rotating plate; 6. a jack; 7. temporary piers; 8. a lifting plate; 9. a limiting hole; 10. a protruding rod; 11. a screw rod; 12. a limit rod; 13. a screw; 14. a vertical rod; 15. an anti-slip mat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a steel box girder splicing pushing device comprises a steel box girder 1, a box body 2 and a motor 3 fixedly arranged at one side of the box body 2; the output end of the motor 3 penetrates through the box body 2 and is in threaded connection with moving plates 4 through a threaded mechanism, two moving plates 4 are arranged, a rotating plate 5 is rotatably connected between the two moving plates 4 through bearings, two sides of the top of the rotating plate 5 are fixedly connected with temporary piers 7 through jacks 6, the bottom of the inner surface of the box body 2 is in threaded connection with lifting plates 8 through an adjusting mechanism, limiting holes 9 are formed in the bottom of the rotating plate 5, and protruding rods 10 matched with the limiting holes 9 are fixedly connected to the top of the lifting plates 8; because thrusters generally have transverse driving and vertical driving, and then its volume is usually great, when transporting it, can comparatively occupation space, but current steel case roof beam 1 thrusters can't adjust, and then can't reduce occupation space, be inconvenient for transporting, during operation, drive lifter plate 8 through screw rod 13 and move to box 2 bottommost, make protruding pole 10 break away from spacing hole 9 on the rotor plate 5, thereby the convenience is accomodate rotor plate 5, jack 6 and interim mound 7 rotate down to box 2 inside, thereby can reduce occupation space, the convenience is transported and removed it, the practicality is stronger, front and the back of box 2 just are located the both sides of lifter plate 8 all offered with the opening, because lifter plate 8, jack 6 and interim mound 7 need certain range of motion when rotating down and accomodate into box 2 inside, can avoid causing it to shelter from through the open-ended setting, thereby the convenience accomodates processing to interim mound 7, the practicality is stronger.

The screw thread mechanism comprises a screw rod 11, one end of the screw rod 11 is rotatably connected with the bottom of the middle part of one side of the inner surface of the box body 2 through a bearing, the output end of the motor 3 penetrates through the box body 2 and is fixedly connected with the other end of the screw rod 11, and a limiting rod 12 is fixedly connected with the bottom between the two walls of the box body 2 and positioned on the front and back of the screw rod 11; during operation, the moving direction of the moving plate 4 can be limited through the limiting rods 12, and meanwhile, the supporting force on the moving plate 4 can be enhanced through the arrangement of the two limiting rods 12, so that the stability of the moving plate 4 is improved.

The middle parts of one side of the two moving plates 4 are in threaded connection with the outer surface of the screw rod 11 through threaded holes, and the front and the back of one side of the moving plates 4 are in sliding connection with the outer surface of the limiting rod 12 through sliding holes; during operation, the two moving plates 4 synchronously and in the same direction move when the screw rod 11 rotates, so that the same distance is kept between the two moving plates 4 all the time.

The adjusting mechanism comprises a screw rod 13, the bottom end of the screw rod 13 is rotationally connected with the front surface of the bottom of the inner cavity of the box body 2 through a bearing, the back of the bottom of the inner cavity of the box body 2 is fixedly connected with a vertical rod 14, the front surface of the bottom of the lifting plate 8 is in threaded connection with the outer surface of the screw rod 13 through a threaded hole, and the back of the bottom of the lifting plate 8 is in sliding connection with the outer surface of the vertical rod 14 through a sliding hole; during operation, the top fixedly connected with of screw rod 13 twists the hand, makes things convenient for constructor to operate screw rod 13 rotation through twisting the hand, comparatively facilitates the use.

The number of the limiting holes 9 and the number of the convex rods 10 are all provided with a plurality of limiting holes; in operation, the stability of the device can be enhanced by the arrangement of the plurality of limiting holes 9 and the convex rods 10.

The top of the temporary pier 7 is fixedly connected with an anti-slip pad 15, and the top of the anti-slip pad 15 is attached to the bottom of the steel box girder 1; during operation, friction force of the temporary pier 7 when pushing the steel box girder 1 can be increased through the anti-slip pad 15, slipping of the temporary pier 7 when pushing the steel box girder 1 is avoided, and pushing construction implementation land can be smoother.

The working principle is that the pushing device is usually provided with a transverse driving and a vertical driving, so that the pushing device is usually large in size, and occupies a relatively large space when the pushing device is transported, but the existing steel box girder 1 pushing device cannot be adjusted, so that the occupied space cannot be reduced, and the transportation is inconvenient, because the pushing device is required to be used in bridge construction, and then the pushing device is required to be transported to a construction site before the steel box girder 1 is pushed for construction, when the pushing device is required to be transported, the screw 13 is driven by rotating the screwing hand to rotate anticlockwise, so that the lifting rod is driven to move downwards until the lifting rod moves to the bottommost position of the box body 2, at the moment, the protruding rod 10 on the lifting plate 8 is completely separated from the limiting hole 9 and is far away from the rotating plate 5, at the moment, the rotating plate 5, the jack 6 and the temporary pier 7 are downwards rotated, so that the jack 6 and the temporary pier 7 enter the box body 2, thereby reducing the occupied space of the device and facilitating transportation, when the device is transported to a construction site for installation and pushing construction is needed, the rotating plate 5 is rotated upwards, so that the jack 6 and the temporary pier 7 are both rotated upwards to the original position, then the screw 13 is driven to rotate by clockwise rotation of the screwing hands, so that the lifting plate 8 is moved upwards until the lifting plate 8 is moved to the highest position of the screw 13, at the moment, the protruding rod 10 on the lifting plate 8 can completely enter the limiting hole 9, thereby playing the roles of supporting the rotating plate 5 and limiting the rotating plate 5, then the jack 6 is started to drive the temporary pier 7 to move upwards until the anti-skid pad 15 is completely tightly attached to the steel box girder 1, the screw 11 is driven to rotate clockwise by the motor 3, so that the steel box girder 1 is pushed to move rightwards until the moving plate 4 is moved to the position contacted with the right wall of the box body 2, the control jack 6 drives the temporary pier 7 to move downwards and away from the steel box girder 1, and then the motor 3 is controlled to rotate anticlockwise to drive the screw rod 11 to rotate, so that the moving plate 4 and the temporary pier 7 move leftwards until the moving plate 4 on the left side moves to be contacted with the left wall of the box body 2, and pushing operation is repeated according to the operation.

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.

Claims

1. A steel box girder splicing pushing device comprises a steel box girder (1), a box body (2) and a motor (3) fixedly arranged at one side of the box body (2); the method is characterized in that: the output of motor (3) runs through box (2) and has movable plate (4) through screw mechanism threaded connection, the quantity of movable plate (4) is provided with two, two be connected with rotor plate (5) through the bearing rotation between movable plate (4), the both sides at rotor plate (5) top are all through jack (6) fixedly connected with temporary mound (7), the bottom of box (2) internal surface is through adjustment mechanism threaded connection has lifter plate (8), spacing hole (9) have been seted up to the bottom of rotor plate (5), the top fixedly connected with of lifter plate (8) with protruding pole (10) of spacing hole (9) looks adaptation.

2. The steel box girder splicing pushing device according to claim 1, wherein: the screw thread mechanism comprises a screw rod (11), one end of the screw rod (11) is rotationally connected with the bottom of one side middle part of the inner surface of the box body (2) through a bearing, the output end of the motor (3) penetrates through the box body (2) and is fixedly connected with the other end of the screw rod (11), and a limiting rod (12) is fixedly connected with the bottom between two walls of the box body (2) and located on the front side and the back of the screw rod (11).

3. The steel box girder splicing pushing device according to claim 2, wherein: the middle parts of one side of the two movable plates (4) are in threaded connection with the outer surface of the screw rod (11) through threaded holes, and the front and the back of one side of the movable plates (4) are both in sliding connection with the outer surface of the limiting rod (12) through sliding holes.

4. A steel box girder splicing pushing device according to claim 3, wherein: the adjusting mechanism comprises a screw rod (13), the bottom end of the screw rod (13) is rotationally connected with the front surface of the bottom of the inner cavity of the box body (2) through a bearing, the back of the bottom of the inner cavity of the box body (2) is fixedly connected with a vertical rod (14), the front surface of the bottom of the lifting plate (8) is in threaded connection with the outer surface of the screw rod (13) through a threaded hole, and the back of the bottom of the lifting plate (8) is in sliding connection with the outer surface of the vertical rod (14) through a sliding hole.

5. The steel box girder splicing pushing device according to claim 4, wherein: the number of the limiting holes (9) and the number of the protruding rods (10) are all provided with a plurality of limiting holes.

6. The steel box girder splicing pushing device according to claim 5, wherein: the top of interim mound (7) fixedly connected with slipmat (15), the top of slipmat (15) is laminated with the bottom of steel case roof beam (1).