CN217352189U

CN217352189U - Manufacturing jig frame for box type steel structure bridge

Info

Publication number: CN217352189U
Application number: CN202221895488.5U
Authority: CN
Inventors: 杨尊加; 张恒; 牛青芃; 张莹莹; 李文君
Original assignee: Henan Dafang Heavy Equipment Co Ltd
Current assignee: Henan Dafang Heavy Equipment Co Ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-09-02
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a box-type steel structure bridge is with preparation bed-jig, including a plurality of bed-jig units that set up along the even interval of length direction of bridge, the bed-jig unit includes the supporting beam who sets up along the width direction of bridge, be provided with a plurality of scalable supporting mechanism along the even interval of its length direction on the supporting beam, scalable supporting mechanism is vertical upwards to be set up, it is the same to be located each scalable supporting mechanism's on same bed-jig unit height homogeneous, the one end of bridge is followed to each scalable supporting mechanism's that the length direction interval of bridge set up highly degressive setting in proper order to the other end of bridge, one side of supporting beam is provided with driving motor, be connected through the drive mechanism transmission between the lower part and the driving motor of each scalable supporting mechanism that is located on the same bed-jig unit. The convenient support slope that forms the bed-jig is adjusted, and the flexible operation is convenient, has improved work efficiency, and fixes a position accurately, has guaranteed the quality that the bridge was made.

Description

Box-type steel structure bridge is with preparation bed-jig

Technical Field

The utility model belongs to the technical field of auxiliary assembly is used in the bridge manufacturing, especially relate to a box shaped steel structure bridge is with preparation bed-jig.

Background

In the manufacturing process of the box-type steel structure bridge, because the top surface of the box-type steel structure bridge needs to have a certain flowing water gradient, during manufacturing, a top plate of the bridge needs to be placed at the top of the manufacturing jig frame, and the gradient of the top surface of the box-type steel structure bridge is positioned by utilizing the gradient of the manufacturing jig frame. After the top plate is placed on the manufacturing jig frame, longitudinal stiffening ribs, side webs, a middle web, transverse partition plates, a cover bottom plate and the like are installed on the top plate, and finally the manufacturing of the box-type steel structure bridge is completed. A commonly-used manufacturing jig frame in the prior art is shown in figure 1 and comprises a plurality of jig frame units arranged at intervals, each jig frame unit is arranged at intervals along the width direction of a box-type steel structure bridge, each jig frame unit comprises a horizontal beam 1, the top of the beam 1 is welded with a plurality of stand columns 2 arranged at uniform intervals along the length direction of the beam, the height of each stand column 2 is gradually reduced from one end of the beam 1 to the other end of the beam 1, the connecting line of the highest points of all the stand columns 2 forms an inclined slope, and the slope of the top surface of the bridge is positioned by utilizing the slope. Because the connected mode between this crossbeam 1 and the stand 2 of preparation bed-jig is the welding, and the height of stand 2 can not be adjusted, leads to the range of application of bed-jig narrow, when meetting the box steel construction bridge that needs the different top surface slopes of preparation, then need change different bed-jigs, extravagant a large amount of material cost and cost of labor influence the progress of manufacturing. In order to solve the existing problems, patent document CN214737413U discloses an adjustable bed-jig for manufacturing a steel box girder, which is composed of i-steel upright posts, channel steel and pin bolts, wherein the i-steel upright posts are vertically arranged, the horizontally arranged channel steel is vertically and horizontally connected between the i-steel upright posts to form a bed-jig body, the upper end of each i-steel upright post is fixedly provided with one pin bolt, and the height of each pin bolt can be adjusted. This bed-jig though can realize the regulation to supporting height, but every round pin axle bolt all needs artifical manual highly to adjust it, not only waste time and energy, and is inefficient, and owing to be provided with a plurality of bed-jigs along box steel structure bridge width direction, the unable assurance lies in but the altitude mixture control that lies in the round pin axle bolt of same row on different bed-jigs is unanimous, increased the error of carrying out the location to the slope of box steel structure bridge top surface, influence the quality of product, the user demand that satisfies that can not be fine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a box steel construction bridge is with preparation bed-jig for solve current bed-jig when fixing a position the slope of box steel construction bridge top surface, exist inconveniently to supporting the slope and adjust, positioning error is big, the technical problem who satisfies the user demand that can not be fine.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the manufacturing jig frame for the box type steel structure bridge comprises a plurality of jig frame units which are uniformly arranged along the length direction of the bridge at intervals, each jig frame unit comprises a supporting cross beam arranged along the width direction of the bridge, a plurality of telescopic supporting mechanisms are uniformly arranged on each supporting cross beam along the length direction of the supporting cross beam at intervals, the telescopic supporting mechanisms are vertically arranged upwards, the heights of the telescopic supporting mechanisms on the same jig frame unit are the same, the heights of the telescopic supporting mechanisms arranged along the length direction of the bridge at intervals are sequentially arranged from one end of the bridge to the other end of the bridge in a descending mode, a driving motor is arranged on one side of each supporting cross beam, and the lower parts of the telescopic supporting mechanisms on the same jig frame unit are in transmission connection with the driving motors through transmission mechanisms; the telescopic supporting mechanism comprises a fixing sleeve which is fixed on the top of a supporting beam and is vertically arranged upwards, the upper end and the lower end of the fixing sleeve are open, the fixing sleeve is arranged in a hollow mode, the supporting beam is a box-shaped beam which is arranged in a hollow mode, the inside of the supporting beam is rotatably connected with a threaded shaft which is arranged vertically upwards, the top end of the threaded shaft penetrates through the top of the supporting beam and extends to the upper portion inside the fixing sleeve, the threaded shaft inside the supporting beam is connected with a transmission mechanism, the outer portion of the threaded shaft above the supporting beam is connected with a movable sleeve in a threaded mode, the top end of the movable sleeve extends upwards to the upper portion of the fixing sleeve and is fixedly connected with a horizontally arranged supporting plate, and a limiting assembly used for limiting and guiding the movable sleeve is arranged between the outer wall of the lower portion of the movable sleeve and the inner wall of the fixing sleeve; the limiting assembly comprises two symmetrically-arranged limiting blocks fixed on the outer wall of the lower portion of the movable sleeve, limiting grooves symmetrically arranged are formed in the inner wall of the fixed sleeve along the length direction of the inner wall of the fixed sleeve, and the limiting blocks are connected inside the limiting grooves in a sliding mode.

Preferably, drive mechanism extends along supporting beam's length direction including rotating the transmission shaft of connection inside supporting beam, and the one end of transmission shaft extends to supporting beam's outside and is connected with driving motor's output shaft transmission through the shaft coupling, and the periphery of the lower part of each threaded shaft is fixed the cover and is equipped with the worm wheel all, and the worm wheel is located inside supporting beam, and the fixed cover in periphery of transmission shaft is equipped with that a plurality of intervals set up and with worm wheel matched with worm, the worm meshes with the worm wheel mutually.

Preferably, the top of the supporting plate is fixed with an anti-skid rubber pad.

The utility model has the advantages that: the structure design is reasonable, the installation and the use are convenient, a plurality of moulding bed units are uniformly arranged at intervals along the length direction of the bridge below the bridge, a plurality of telescopic supporting mechanisms are uniformly arranged at intervals along the width direction of the bridge on each moulding bed unit, the heights of the telescopic supporting mechanisms on the same moulding bed unit are the same, the heights of the telescopic supporting mechanisms arranged at intervals along the length direction of the bridge are sequentially and progressively reduced from one end of the bridge to the other end of the bridge, so as to form an inclined supporting slope, because the lower parts of the telescopic supporting mechanisms on the same moulding bed unit are in transmission connection with the driving motor through the transmission mechanism, when the slope needs to be adjusted, each telescopic supporting mechanism on the same moulding bed unit can keep synchronous lifting under the action of the transmission mechanism, so that the heights of the telescopic supporting mechanisms on the same column (namely arranged along the width direction of the bridge) are kept consistent, because each driving motor autonomous working, can make the height that is located each scalable supporting mechanism of same capable (arranging along the length direction of bridge promptly) set gradually steadily decreasing from the one end of bridge to the other end of bridge, not only conveniently adjust the support slope that the bed-jig formed, the flexible operation is convenient, has improved work efficiency, and the location is accurate moreover, has guaranteed the quality that the bridge was made, and the practicality is strong, can be fine satisfy the user demand.

Drawings

Fig. 1 is a schematic structural view of a prior art jig frame;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the internal structure of the jig frame unit;

FIG. 4 is an enlarged view taken at A in FIG. 3;

fig. 5 is an enlarged view at B in fig. 3.

Reference numerals: the device comprises a beam 1, a column 2, a supporting beam 3, a telescopic supporting mechanism 4, a bridge 5, a driving motor 6, a fixed sleeve 7, a threaded shaft 8, a movable sleeve 9, a supporting plate 10, an anti-skid rubber pad 11, a limiting block 12, a limiting groove 13, a transmission shaft 14, a worm wheel 15 and a worm 16.

Detailed Description

As shown in fig. 2, the utility model discloses a plurality of bed-jig units that set up along the even interval of length direction of bridge 5, as shown in fig. 3, the bed-jig unit includes supporting beam 3 along the width direction setting of bridge 5, supporting beam 3 is last to be provided with a plurality of scalable supporting mechanism 4 along the even interval of its length direction, scalable supporting mechanism 4 is vertical upwards to be set up, it is the same to be located each scalable supporting mechanism 4 on same bed-jig unit highly, highly from the one end of bridge 5 to the other end of bridge 5 degressive setting in proper order of height of each scalable supporting mechanism 4 that sets up along the length direction interval of bridge 5, one side of supporting beam 3 is provided with driving motor 6, be connected through the drive mechanism transmission between the lower part of each scalable supporting mechanism 4 that is located on same bed-jig unit and driving motor 6. The driving motor 6 is a forward and reverse rotating motor. The telescopic supporting mechanism 4 comprises a fixed sleeve 7 which is fixed on the top of the supporting beam 3 and is vertically arranged upwards, the upper end and the lower end of the fixed sleeve 7 are opened, inside cavity sets up, supporting beam 3 is the box girder that inside cavity set up, supporting beam 3's inside rotation is connected with the vertical threaded shaft 8 that upwards sets up, threaded shaft 8's top is run through supporting beam 3's top and is extended to the inside top of fixed sleeve 7, the threaded shaft 8 that is located supporting beam 3 inside is connected with drive mechanism, the outside threaded connection who is located threaded shaft 8 of supporting beam 3 top has movable sleeve 9, movable sleeve 9's top upwards extends to fixed sleeve 7's top and the backup pad 10 that fixed connection has the level to set up, the top of backup pad 10 is fixed with anti-skidding rubber pad 11, increase the frictional force between backup pad 10 and the 5 top surfaces of bridge, make the more firm of connecting between the two. A limiting component used for limiting and guiding the movable sleeve 9 is arranged between the outer wall of the lower part of the movable sleeve 9 and the inner wall of the fixed sleeve 7. As shown in fig. 5, the limiting component comprises two symmetrically arranged limiting blocks 12 fixed on the outer wall of the lower part of the movable sleeve 9, limiting grooves 13 symmetrically arranged are formed in the inner wall of the fixed sleeve 7 along the length direction of the inner wall, and the limiting blocks 12 are slidably connected inside the limiting grooves 13. Due to the existence of the limiting block 12 and the limiting groove 13, when the threaded shaft 8 rotates, the movable sleeve 9 can only slide along the vertical direction and cannot rotate along with the rotation of the threaded shaft 8, and then the height of the supporting plate 10 is adjusted.

As shown in fig. 3 and 4, drive mechanism is including rotating the transmission shaft 14 of connection in supporting beam 3 inside, transmission shaft 14 extends along supporting beam 3's length direction, the one end of transmission shaft 14 extends to supporting beam 3's outside and is connected with driving motor 6's output shaft transmission through the shaft coupling, the periphery of the lower part of each threaded shaft 8 is all fixed the cover and is equipped with worm wheel 15, worm wheel 15 is located supporting beam 3 inside, the fixed cover in periphery of transmission shaft 14 is equipped with a plurality of intervals set up and worm 16 with worm wheel 15 matched with, worm 16 meshes with worm wheel 15 mutually. The output shaft of the driving motor 6 rotates to drive the transmission shaft 14 to rotate, and the transmission shaft 14 drives the worm 16 and the worm wheel 15 to rotate, so that the threaded shafts 8 arranged on the same supporting beam 3 can synchronously rotate, and the supporting plates 10 on the same supporting beam 3 are ensured to be the same in height. The lifting mechanism is convenient to adjust, improves the working efficiency, enables the lifting of the supporting plate 10 on the same jig frame unit to keep synchronous motion, can reduce energy consumption and reduce the use cost.

The utility model discloses a theory of operation and working process: when the device is used, all the jig frame units are arranged at intervals, and the supporting gradient needs to be adjusted, firstly, adjustment is started from one jig frame unit at the end part, the driving motor 6 is started, the output shaft of the driving motor 6 rotates to drive the transmission shaft 14 to rotate, the transmission shaft 14 drives the worm 16 and the worm wheel 15 to rotate, so that the threaded shaft 8 arranged on the same supporting cross beam 3 can synchronously rotate, due to the fact that the movable sleeve 9 is in threaded connection with the threaded shaft 8 and due to the existence of the limiting block 12 and the limiting groove 13, when the threaded shaft 8 rotates, the movable sleeve 9 can only slide along the vertical direction and cannot rotate along with the rotation of the threaded shaft 8, further adjustment of the height of the supporting plates 10 is achieved, after the adjustment is finished, the operations are repeated to sequentially adjust all the jig frame units, and finally, the heights of all the supporting plates 10 which are arranged in the same row (namely, the supporting plates are arranged along the length direction of the bridge 5) are sequentially and gradually reduced from one end of the bridge 5 to the other end of the bridge 5 So as to form an inclined supporting slope, and finally, the top plate of the bridge 5 is placed on the top of each jig frame unit, so that the assembly of each part of the bridge 5 can be started.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. The utility model provides a box shaped steel structure bridge is with preparation bed-jig, includes a plurality of bed-jig units that set up along the even interval of length direction of bridge, its characterized in that: the jig frame unit comprises a supporting beam arranged along the width direction of the bridge, a plurality of telescopic supporting mechanisms are uniformly arranged on the supporting beam at intervals along the length direction of the supporting beam, the telescopic supporting mechanisms are vertically and upwards arranged, the heights of the telescopic supporting mechanisms on the same jig frame unit are the same, the heights of the telescopic supporting mechanisms arranged at intervals along the length direction of the bridge are sequentially and progressively decreased from one end of the bridge to the other end of the bridge, a driving motor is arranged on one side of the supporting beam, and the lower parts of the telescopic supporting mechanisms on the same jig frame unit are in transmission connection with the driving motor through a transmission mechanism; the telescopic supporting mechanism comprises a fixing sleeve which is fixed on the top of a supporting beam and is vertically arranged upwards, the upper end and the lower end of the fixing sleeve are open, the fixing sleeve is arranged in a hollow mode, the supporting beam is a box-shaped beam which is arranged in a hollow mode, the inside of the supporting beam is rotatably connected with a threaded shaft which is arranged vertically upwards, the top end of the threaded shaft penetrates through the top of the supporting beam and extends to the upper portion inside the fixing sleeve, the threaded shaft inside the supporting beam is connected with a transmission mechanism, the outer portion of the threaded shaft above the supporting beam is connected with a movable sleeve in a threaded mode, the top end of the movable sleeve extends upwards to the upper portion of the fixing sleeve and is fixedly connected with a horizontally arranged supporting plate, and a limiting assembly used for limiting and guiding the movable sleeve is arranged between the outer wall of the lower portion of the movable sleeve and the inner wall of the fixing sleeve; the limiting assembly comprises two symmetrically-arranged limiting blocks fixed on the outer wall of the lower portion of the movable sleeve, limiting grooves symmetrically arranged are formed in the inner wall of the fixed sleeve along the length direction of the inner wall of the fixed sleeve, and the limiting blocks are connected inside the limiting grooves in a sliding mode.

2. The manufacturing jig frame for the box type steel structure bridge according to claim 1, characterized in that: drive mechanism is including rotating the transmission shaft of connection in the inside of supporting beam, and the transmission shaft extends along the length direction of supporting beam, and the one end of transmission shaft extends to the outside of supporting beam and is connected with driving motor's output shaft transmission through the shaft coupling, and the periphery of the lower part of each threaded shaft is all fixed the cover and is equipped with the worm wheel, and the worm wheel is located inside the supporting beam, and the fixed cover in periphery of transmission shaft is equipped with that a plurality of intervals set up and with worm wheel matched with worm, worm and worm wheel mesh mutually.

3. The manufacturing jig frame for the box type steel structure bridge according to claim 1 or 2, characterized in that: the top of the supporting plate is fixed with an anti-skid rubber pad.