CN220265079U - Auxiliary lifting device for steel wire rope of bridge girder erection machine - Google Patents

Abstract

The utility model discloses a bridge girder erection machine steel wire rope auxiliary lifting device which comprises a rectangular box body, wherein pulleys are arranged in the rectangular box body, two sides of each pulley are connected with side plates on two sides of the rectangular box body through rotating shafts, a push rod penetrates through a top plate of the rectangular box body in a sliding mode, one end, located in the rectangular box body, of each push rod is fixed with a mounting plate, limiting rollers are arranged at the bottom of each mounting plate, and telescopic assemblies are arranged on two sides of the top of each mounting plate. This bridge crane wire rope assists hoisting device can pull the hoisting through the pulley to wire rope, can effectually reduce the trouble of manual handling, improves wire rope's installation effectiveness.

Description

Auxiliary lifting device for steel wire rope of bridge girder erection machine

Technical Field

The utility model relates to the technical field of bridge girder erection machine steel wire ropes, in particular to an auxiliary lifting device for the bridge girder erection machine steel wire ropes.

Background

The bridge girder erection machine is equipment for placing prefabricated girder segments on prefabricated piers. Bridge girder erection machines belong to the category of cranes because the main function is to lift up the girder segments, then transport them to the location and then drop them down. Bridge girder erection machines are quite different from cranes in general. The requirements are severe and there is a running on the beam, or longitudinal movement. The bridge girder erection machine is divided into a plurality of types of bridge girder erection machines, such as highway bridge erection, conventional railway bridge erection, passenger-dedicated railway bridge erection and the like.

At present, one end of a steel wire rope of a bridge girder erection machine needs to be welded on a bridge girder erection machine arm with a certain height during installation, and because the traditional steel wire rope is installed in a manually lifting installation mode, the installation mode is time-consuming and labor-consuming, and particularly, a large amount of labor is consumed during installation of the steel wire rope with a large specification, so that the operation process is very inconvenient, and the installation efficiency of the steel wire rope is reduced.

Disclosure of Invention

The utility model aims to provide an auxiliary lifting device for a steel wire rope of a bridge girder erection machine, which solves the problems that the prior steel wire rope of the bridge girder erection machine is usually manually lifted and installed in the installation process, which is time-consuming and labor-consuming, consumes a large amount of labor, causes inconvenience in the operation process and reduces the installation efficiency of the steel wire rope.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bridge crane wire rope auxiliary lifting device, includes the rectangle box, the inside of rectangle box is equipped with the pulley, the both sides of pulley are all connected with the both sides curb plate of rectangle box through the pivot, just slide on the roof of rectangle box and run through there is the push rod, the push rod is located the inside one end of rectangle box and is fixed with the mounting panel, the bottom of mounting panel is equipped with spacing roller, and the both sides at mounting panel top all are equipped with telescopic assembly.

Preferably, the telescopic assembly at the top of the mounting plate comprises a sliding shaft, annular blocks and extension springs, wherein the sliding shaft is fixed on two sides of the top of the mounting plate, the top end of the sliding shaft penetrates through the outer portion of the top plate of the rectangular box body in a sliding mode, the annular blocks are fixedly sleeved outside the lower end of the sliding shaft, the upper end and the lower end of each extension spring are respectively connected with the bottom of the top plate of the rectangular box body and the top of each annular block, and the extension springs are sleeved outside the sliding shaft.

Preferably, the outer end of the rotating shaft penetrates through the outer part of the side plate of the rectangular box body, the bottom of the outer wall of the side plate of the rectangular box body is provided with a fixed block, a screw rod is inserted into the fixed block through a thread structure, and the outer wall of the outer end of the rotating shaft is provided with a threaded hole matched with the end structure of the screw rod.

Preferably, sliding blocks are fixed on two sides of the mounting plate, and sliding grooves matched with the sliding block structures are formed in the inner walls of the upper ends of the side plates of the rectangular box body.

Preferably, a reinforcing sleeve is arranged at the position, corresponding to the pulley, of the inner wall of the rear end of the rectangular box body, and a damping ring is arranged on the inner wall of the reinforcing sleeve.

Preferably, the position of the limiting roller is close to that of the pulley, and a rubber sleeve is sleeved outside the limiting roller.

Compared with the prior art, the utility model has the beneficial effects that: this bridge crane wire rope assists hoisting device can pull the hoisting through the pulley to wire rope, can effectually reduce the trouble of manual handling, improves wire rope's installation effectiveness. This bridge crane wire rope assists hoisting device is through welding on bridge crane hoist and hang the wire rope one end that will install on leaning on the pulley to the limiting roller accessible push pedal and the mounting panel that is equipped with above the pulley mutually support and produce effort to tensile subassembly, so that the limiting roller can support under tensile subassembly's elastic action and press and carry out quick spacing fixedly on wire rope, this makes bridge crane hoist when going up and down can drive wire rope and promote.

Drawings

FIG. 1 is a schematic diagram of a steel wire rope auxiliary lifting device of a bridge girder erection machine;

FIG. 2 is a schematic diagram of a connection structure between a mounting plate and a rectangular box body of the auxiliary lifting device for the steel wire rope of the bridge girder erection machine;

fig. 3 is a schematic diagram of a connection structure between a pulley and a rectangular box body of the auxiliary lifting device for the steel wire rope of the bridge girder erection machine.

In the figure: 1. a rectangular box body; 2. a pulley; 3. a rotating shaft; 4. a screw; 5. a fixed block; 6. a limit roller; 7. a mounting plate; 8. a push rod; 9. a sliding shaft; 10. an annular block; 11. a tension spring; 12. a sliding block; 13. and (5) reinforcing the sleeve.

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. 1-3, the present utility model provides a technical solution: the bridge girder erection machine steel wire rope auxiliary lifting device comprises a rectangular box body 1, wherein the rectangular box body 1 is formed by welding and combining a plurality of metal plates, the front end of the rectangular box body is of an open structure, pulleys 2 are arranged in the rectangular box body 1, two sides of each pulley 2 are connected with side plates on two sides of the rectangular box body 1 through rotating shafts 3, the connecting parts of the rotating shafts 3 and the rectangular box body 1 are connected through bearings, push rods 8 are penetrated through a top plate of the rectangular box body 1 in a sliding manner, rubber rings are arranged at the connecting parts of the rectangular box body 1 and the push rods 8, one end of each push rod 8, which is positioned in the rectangular box body 1, is fixedly welded with a mounting plate 7, the bottom of the mounting plate 7 is provided with limiting rollers 6 through brackets, two ends of each limiting roller 6 are connected with the bottom of the mounting plate 7 through pin shafts in a rotating manner, and two sides of the top of the mounting plate 7 are provided with telescopic components, the rectangular box body 1 with the structure can be welded at a proper position on the lifting appliance of the bridge girder erection machine and one end of a steel wire rope to be installed is hung on the pulley 2, the push rod 8 can drive the installation plate 7 to move up and down by sliding on the top plate of the rectangular box body 1, the limit roller 6 can be propped against the steel wire rope on the pulley 2 under the acting force of the telescopic component when the installation plate 7 moves up and down, so as to realize the function of quickly positioning the steel wire rope hung on the pulley 2, thereby the steel wire rope can be lifted along with the lifting appliance of the bridge girder erection machine on the pulley 2, the operation process is more convenient, the trouble that the prior art is mainly used for manually lifting and installing the steel wire rope is avoided, the labor carrying is effectively reduced, the installation efficiency is higher, the telescopic component at the top of the installation plate 7 comprises the sliding shaft 9, the annular block 10 and the extension spring 11, the sliding shaft 9 is symmetrically welded and fixed on two sides of the top of the installation plate 7, the top end of the sliding shaft 9 is slidably penetrated to the outside of the top plate of the rectangular box body 1, the annular block 10 is fixedly sleeved outside the lower end of the sliding shaft 9, the annular block 10 and the sliding shaft 9 form an integrated structure, the upper end and the lower end of the extension spring 11 are respectively connected with the bottom of the top plate of the rectangular box body 1 and the top of the annular block 10, the extension spring 11 is sleeved outside the sliding shaft 9, the mounting plate 7 of the structure synchronously drives the sliding shaft 9 to slide on the top plate of the rectangular box body 1 when moving up and down, the sliding shaft 9 can generate acting force on the extension spring 11 under the cooperation of the annular block 10 when one end of a steel wire rope is hung on the pulley 2, the mounting plate 7 can drive the limit roller 6 to be pressed on the steel wire rope on the pulley 2 under the acting force of the extension spring 11 so as to realize the effect of quick positioning of the steel wire rope, the outer end of the rotating shaft 3 is penetrated to the outside the side plate of the rectangular box body 1, the bottom of the side plate of the rectangular box body 1 is fixedly welded with the fixed block 5, the inside of the fixed block 5 is penetrated with the threaded screw 4 through the threaded structure, the outer end 3 is fixedly arranged on the side plate 4 of the rotating shaft 3 and the rotating shaft 3 is fixedly connected with the threaded hole 12 of the rotating shaft 3 through the rotating end of the rotating end 3, the rotating end 3 is fixedly arranged on the rotating end of the rotating end 3 through the rotating end of the rotating end 3, and the threaded plate is fixedly arranged in the threaded hole 12 of the rotating end 3 is fixedly arranged in the threaded hole of the rotating end 3 is fixedly connected with the rotating end 3, the mounting panel 7 of this structure can drive sliding block 12 simultaneously and slide in the spout on the curb plate upper end inner wall of rectangular box 1 in the in-process of activity from top to bottom to stability when improving mounting panel 7 activity from top to bottom, more firm drive limiting roller 6 supports and presses on the wire rope on pulley 2, the inner wall of rectangular box 1 rear end and the corresponding position welded fastening of pulley 2 have the cover 13, and be equipped with the damping collar on the inner wall of cover 13 consolidate, the wire rope one end of this structure is hung when leaning on pulley 2 in synchronous accessible interlude in the cover 13 consolidates, the damping collar on the accessible inner wall also plays the limiting effect of removal with the wire rope contact, further improve the stability that the wire rope hung on pulley 2, limiting roller 6 is close to with pulley 2's position, and the outside cover of limiting roller 6 is equipped with the rubber sleeve, limiting roller 6 of this structure can improve frictional force through outside rubber sleeve and wire rope direct contact, this makes the wire rope be difficult for appearing sliding when receiving limiting roller 6's spacing.

Working principle: when using this bridge crane wire rope auxiliary lifting device, at first with the whole welding of rectangle box 1 suitable position on bridge crane hoist, then place pulley 2 in with wire rope one end that needs to install, pulley 2 rotates through pivot 3 and reserves wire rope to suitable string length, and wire rope string's one end accessible interlude consolidates in strengthening sleeve 13, pull push rod 8 upwards on the roof of rectangle box 1 simultaneously in wire rope string's process of leaning, can drive mounting panel 7 synchronous rising when push rod 8 upwards slides, synchronous can drive slide shaft 9 slide on the roof of rectangle box 1 when mounting panel 7 rises, can produce the extrusion to extension spring 11 under the cooperation of annular piece 10 when slide shaft 9 slides, until wire rope hangs on pulley 2 and accomplish the back, loosen push rod 8, when mounting panel 7 does not receive the pulling force of push rod 8, spacing roller 6 can support under the elastic force of extension spring 11 and press and carry out quick location on wire rope on pulley 2, then rotate screw rod 4 respectively, screw rod 4 passes through the inside rotation structure with tip 3 fixed at fixed end of fixed block 5 and the pivot 3, can not receive the pivot 2 when the wire rope is fixed in the bridge crane, can take place the lifting device, thereby the lifting efficiency can be improved effectively, when the lifting device is installed in a series of wire rope 2.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. Bridge crane wire rope assists hoisting device, including rectangle box (1), its characterized in that: the inside of rectangle box (1) is equipped with pulley (2), the both sides of pulley (2) are all connected with the both sides curb plate of rectangle box (1) through pivot (3), just slip on the roof of rectangle box (1) is run through has push rod (8), push rod (8) are located the inside one end of rectangle box (1) and are fixed with mounting panel (7), the bottom of mounting panel (7) is equipped with spacing roller (6), and the both sides at mounting panel (7) top all are equipped with telescopic assembly.

2. The bridge girder erection machine steel wire rope auxiliary lifting device according to claim 1, wherein: the telescopic component at the top of the mounting plate (7) comprises a sliding shaft (9), annular blocks (10) and an extension spring (11), wherein the sliding shaft (9) is fixed on two sides of the top of the mounting plate (7), the top end of the sliding shaft (9) is slidably penetrated outside a top plate of the rectangular box body (1), the annular blocks (10) are fixedly sleeved outside the lower end of the sliding shaft (9), the upper end and the lower end of the extension spring (11) are respectively connected with the bottom of the top plate of the rectangular box body (1) and the top of the annular blocks (10), and the extension spring (11) is sleeved outside the sliding shaft (9).

3. The bridge girder erection machine steel wire rope auxiliary lifting device according to claim 1, wherein: the outer end of the rotating shaft (3) penetrates through the outer part of the side plate of the rectangular box body (1), a fixed block (5) is arranged at the bottom of the outer wall of the side plate of the rectangular box body (1), a screw (4) is inserted into the fixed block (5) through a thread structure, and a threaded hole matched with the end structure of the screw (4) is formed in the outer wall of the outer end of the rotating shaft (3).

4. The bridge girder erection machine steel wire rope auxiliary lifting device according to claim 1, wherein: sliding blocks (12) are fixed on two sides of the mounting plate (7), and sliding grooves matched with the sliding blocks (12) in structure are formed in the inner walls of the upper ends of the side plates of the rectangular box body (1).

5. The bridge girder erection machine steel wire rope auxiliary lifting device according to claim 1, wherein: the inner wall of the rear end of the rectangular box body (1) is provided with a reinforcing sleeve (13) at a position corresponding to the pulley (2), and the inner wall of the reinforcing sleeve (13) is provided with a damping ring.

6. The bridge girder erection machine steel wire rope auxiliary lifting device according to claim 1, wherein: the limiting roller (6) is close to the pulley (2), and a rubber sleeve is sleeved outside the limiting roller (6).