CN220348159U - Stiffening rib installation and compression device for steel box girder - Google Patents

Abstract

The utility model relates to the technical field of steel box girder construction tooling equipment, in particular to a compacting device for installing a stiffening rib of a steel box girder. The steel box girder reinforcing device comprises a portal and a screw jack fixed in the portal, wherein the bottom surface of the portal is fixedly connected with the steel box girder, the screw jack faces towards the stiffening rib, and the stiffening rib is compressed by the downward extension of a sleeve of the screw jack. The purpose of compacting the stiffening ribs is achieved only through the sleeve stroke of the lifting jack by arranging the portal supporting the screw jack, and the device has the advantages of simple structure, light weight and convenience in carrying and recycling; the energy is saved, the cost is low and the safety is high.

Description

Stiffening rib installation and compression device for steel box girder

Technical Field

The utility model relates to the technical field of steel box girder construction tooling equipment, in particular to a compacting device for installing a stiffening rib of a steel box girder.

Background

The steel box girder, called steel plate box girder, is a common structural form of a large-span bridge, and is generally formed by connecting a top plate, a bottom plate, a web plate, a diaphragm plate, a longitudinal diaphragm plate, stiffening ribs and the like in an all-welded mode. In the construction process of steel box girder construction, gaps appear between stiffening and steel plates, which is a problem frequently encountered in processing factories. The factory generally adopts a magnetic lifting appliance of a door crane in a workshop to suck the steel plate to be pulled upwards, or adopts a mode that a weight applies pressure downwards by means of self gravity and the like to eliminate the gap between stiffening and the steel plate. The two ways in the traditional construction all need to be used for dispatching the crane, workers also need to work on the side of the crane, the time and the labor are wasted, the cost is high, the energy is wasted, and the safety is low.

In chinese patent CN 206998157U, a steel beam forming and compacting device is disclosed, which comprises a movable beam capable of moving up and down along a longitudinal direction, wherein the movable beam is connected with a beam driving device; the movable cross beam is provided with a pinch roller mounting groove corresponding to the web plate, the web plate pinch roller is rotationally mounted in the pinch roller mounting groove, and a pinch roller mounting height adjusting mechanism is arranged between the web plate pinch roller and the pinch roller mounting groove. According to the technical scheme, the elevation adjusting range of the web pinch roller can be further enlarged under the condition that the height of the whole machine is unchanged, but the device is complex in structure and still needs to be driven by an oil cylinder, the essence of the device is not greatly different from that of the operation of dispatching the crane, and the device is not energy-saving, and is high in time and labor cost.

Disclosure of Invention

Based on the defects in the prior art, the utility model aims at solving the problems that the operation is inconvenient, the energy consumption is low, the time and labor are wasted and the labor cost is high because the steel plate is pulled up by using a crane in the traditional construction or the gap between the stiffening and the steel plate is eliminated by means of the gravity pressing of a heavy object and the like, and aims to provide the pressing device for installing the stiffening rib of the steel box girder, which achieves the purpose of pressing the stiffening rib only through the sleeve stroke of the lifting jack, and has the advantages of convenient use, energy conservation, low cost and high safety.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the utility model provides a stiffening rib installation closing device for steel case roof beam, includes the portal and fixes screw jack in the portal, portal bottom surface and steel case roof beam fixed connection, screw jack sets up towards the stiffening rib, compresses tightly the stiffening rib through the sleeve downwardly extending of jack.

As a further development of the utility model, the mast comprises a leg and a cross beam, which is fixed to the leg.

As a further improvement of the utility model, the supporting legs are symmetrically arranged, and the bottom surfaces of the supporting legs are fixedly connected with the steel box girder.

As a further improvement of the utility model, the height of the support leg is larger than the sum of the height of the base of the screw jack and the height of the stiffening rib.

The portal landing leg is a stressed component when the screw jack pushes and the sleeve lifts and lowers, and as a preferable mode, the landing leg can adjust the length according to the height of the stiffening rib, and the height of the landing leg is larger than the sum of the height of the base of the screw jack and the height of the stiffening rib, so that a space is reserved for the sleeve stroke of the screw jack.

As a further improvement of the present utility model, the screw jack is fixed to the lower surface of the cross beam.

As a further improvement of the utility model, the portal further comprises a base pad, and the screw jack is fixed on the lower surface of the cross beam through the base pad.

As a further improvement of the utility model, the bottom edge of the supporting leg is also provided with an open groove.

The open slot is arranged so that the pressing device can be detached and transferred after construction is finished, position replacement construction is facilitated, and recycling of the device is realized.

As a further improvement of the utility model, the portal further comprises an anti-tilting toggle plate, wherein the anti-tilting toggle plate is used for preventing the jack screw from being stressed to tilt when pushing.

As a further improvement of the utility model, the anti-tilting toggle plates are symmetrically arranged at two sides of the cross beam.

As a further improvement of the utility model, the anti-tilting toggle plate is triangular, and two right-angle sides of the anti-tilting toggle plate are fixedly connected with the cross beam and the screw jack respectively.

Therefore, the utility model has the following beneficial effects:

according to the compacting device for installing the stiffening ribs of the steel box girder, provided by the scheme, the purpose of compacting the stiffening ribs is achieved only through the sleeve stroke of the lifting jack by arranging the portal supporting the screw jack, and the compacting device is simple in structure, light in weight and convenient to carry and can be recycled; the energy is saved, the cost is low and the safety is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed 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 of the embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic elevational view of a compression device of the present utility model;

FIG. 2 is a schematic side elevational view of the compression device of the present utility model;

FIG. 3 is a schematic view of the operation of the compression device of the present utility model;

reference numerals illustrate, wherein:

portal 1, screw jack 2, base 21, sleeve 22, steel case beam 3, stiffening rib 4, landing leg 11, crossbeam 12, base backing plate 13, open slot 111, anti-tilting bracket 14.

Detailed Description

The utility model is further described below with reference to the drawings and specific examples. Those of ordinary skill in the art will be able to implement the utility model based on these descriptions. In addition, the embodiments of the present utility model referred to in the following description are typically only some, but not all, embodiments of the present utility model. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; either directly, or indirectly, through intermediaries, may be in communication with each other, or may be in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Before explaining the technical scheme of the present embodiment in detail, first, a description is given of a background situation to which the present embodiment is applied.

The compaction device of the stiffening rib 4 is a compaction device tool piece which is used for treating the situation that the connection surface of the stiffening rib 4 and the steel plate of the steel box girder 3 cannot be tightly attached due to the local deformation of the steel plate and the stiffening rib 4 and generating a gap in the construction process of the steel box girder 3, and the compaction device is required to be dismantled after the compaction and welding of the stiffening rib 4 are completed, and mainly has the function of preventing the stiffening rib 4 from being tightly attached to the steel plate of the steel box girder 3. The screw jack 2 is a mechanical jack, and the screw jack 2 includes a base 21 and a sleeve 22 installed in the base 21, and rotates a screw by gear transmission, thereby pushing the screw jack sleeve 22. The screw jack 2 has simple structure, light weight, convenient carrying and safe and reliable use.

Referring to fig. 1, 2 in combination with fig. 3, the present embodiment provides a stiffener-mounting and pressing device for a steel box girder, comprising: portal 1 and jack screw 2, jack screw 2 are fixed in portal 1, the bottom surface and the steel case roof beam 3 fixed connection of portal 1, and jack screw 2 sets up towards stiffening rib 4, compresses tightly stiffening rib 4 and steel case roof beam 3 through the sleeve 22 downwardly extending of jack, and the device has reached the purpose that does not need the dispatch loop wheel machine to realize stiffening and compressing tightly the operation, convenient to use, energy-conservation, with low costs and the security is high.

As shown in fig. 1, the portal 1 comprises supporting legs 11, a cross beam 12, a base backing plate 13 and an anti-tilting toggle plate 14, the supporting legs 11 of the portal 1 are symmetrically arranged, the bottoms of the supporting legs 11 are in spot welding connection with the steel box girder 3, the upper ends of the supporting legs 11 are connected with the cross beam 12, the supporting legs 11 of the portal 1 are connected with the cross beam 12 and the steel plate of the steel box girder 3, and the portal 1 is a stressed member when the screw jack 2 pushes and the sleeve 22 lifts. Preferably, the length of the supporting leg 11 can be adjusted according to the height of the stiffening rib 4, and the height of the supporting leg 11 is larger than the sum of the height of the base 21 of the screw jack 2 and the height of the stiffening rib 4, so that a space is reserved for the travel of the sleeve 22 of the screw jack 2. The bottom edge of the supporting leg 11 is also provided with an open slot 111, and the open slot 111 is arranged so that the pressing device in the embodiment can be detached and transferred after the construction is completed, the construction at the replacement position is convenient, and the recycling of the device is realized.

The screw jack 2 is fixed on the base backing plate 13 by spot welding, and the other surface of the base backing plate 13 is welded with the lower surface of the cross beam, so that the screw jack 2 is arranged on the cross beam 12 to play a role in supporting the screw jack. The anti-tilting toggle plates are symmetrically arranged on two sides of the cross beam, the anti-tilting toggle plates are triangular, and two right-angle sides of the triangular plate are respectively welded and fixed with the cross beam and the screw jack. When the screw jack pushes, the situation that the screw jack inclines to one side due to uneven stress is prevented.

As shown in fig. 3, the working schematic diagram of the pressing device in this embodiment is as follows:

the welding and installation of the parts of the portal frame 1, the screw jack 2 and the steel plate of the steel box girder 3 are finished, the screw jack 2 is pressed downwards, the sleeve 22 extends downwards to the upper end face of the stiffening plate 4, and the gaps between the stiffening ribs 4 and the steel box girder 3 are eliminated along with the downward pressing of the screw jack 2.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. The stiffening rib installation and compression device for the steel box girder is characterized by comprising a portal frame (1) and a screw jack (2) fixed in the portal frame (1), wherein the bottom surface of the portal frame (1) is fixedly connected with the steel box girder, the screw jack (2) is arranged towards the stiffening rib, and the sleeve (22) of the jack extends downwards to compress the stiffening rib.

2. Stiffening rib installation compression device for steel box girders according to claim 1, characterized in that the portal (1) comprises legs (11) and a cross beam (12), which cross beam (12) is fixed to the legs (11).

3. Stiffening rib installation and compression device for steel box girders according to claim 2, characterized in that the legs (11) are symmetrically arranged and the bottom surfaces of the legs (11) are fixedly connected with the steel box girders.

4. Stiffening rib installation and compression device for steel box girders according to claim 2, characterized in that the height of the legs (11) is greater than the sum of the height of the base (21) of the screw jack (2) and the height of the stiffening ribs.

5. Stiffening rib installation compression device for steel box girders according to claim 2, characterized in that the screw jacks (2) are fixed to the lower surface of the cross beams (12).

6. Stiffening rib installation and compression device for steel box girders according to claim 2 or 5, characterized in that the portal (1) further comprises a base (21) pad, the screw jack (2) being fixed to the lower surface of the cross beam (12) by means of the base (21) pad.

7. A stiffener installation compression device for steel box girders according to claim 2, characterized in that the bottom edges of the legs (11) are further provided with open grooves (111).

8. Stiffening rib installation compression device for steel box girders according to claim 2, characterized in that the portal (1) further comprises an anti-tilting toggle plate (14), which anti-tilting toggle plate (14) is used to prevent the screw jack (2) from being tilted under force when pushing.

9. A stiffener installation compression device for steel box girders according to claim 8, characterized in that the anti-tilting toggle plates (14) are symmetrically arranged on both sides of the cross beam (12).

10. A stiffening rib mounting and pressing device for steel box girders according to claim 8, characterized in that the anti-tilting toggle plate (14) is triangular, and the two right-angle sides of the anti-tilting toggle plate (14) are fixedly connected with the cross beam (12) and the screw jack (2), respectively.