CN212533775U

CN212533775U - Bridge beam supports draw-out device

Info

Publication number: CN212533775U
Application number: CN202021137882.3U
Authority: CN
Inventors: 周敏; 朱建彬
Original assignee: Bridge and Tunnel Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Current assignee: Bridge and Tunnel Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-12
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a bridge bearing extraction device, which comprises a U-shaped mounting seat and a supporting base, wherein the U-shaped mounting seat is slidably arranged on the supporting base, two internal thread pipes are symmetrically and rotatably embedded in the supporting base through a bearing in a front-back manner, threaded rods are connected to the two internal thread pipes in a threaded manner, one ends of the threaded rods, which are far away from the internal thread pipes, are fixedly connected to the U-shaped mounting seat, two connecting blocks are symmetrically arranged on the U-shaped mounting seat, a bidirectional threaded rod is rotatably arranged between the two connecting blocks through the bearing, two clamping plates for clamping and fixing the bridge bearing are symmetrically arranged on the bidirectional threaded rod in a front-back manner, a top plate for jacking a bridge is arranged above the U-shaped mounting seat, a plurality of hydraulic lifting columns are arranged on the supporting base from front to back in an equidistant manner, the device can mechanically extract an old bridge bearing and replace the new bridge bearing, the labor intensity, simple operation, convenient use and high practicability.

Description

Bridge beam supports draw-out device

Technical Field

The utility model relates to a bridge technical field specifically is a bridge beam supports draw-out device.

Background

The bridge bearing is used for transmitting various loads of an upper structure to the abutment, ensuring the free deformation of the upper structure under the action of live load, temperature change, concrete shrinkage, creep and the like, and enabling the actual stress conditions of an upper structure and a lower structure to meet the design purpose.

Bridge beam supports is in under the environment of humidity, easy corrosion oxidation deformation to influence the levelness of bridge, bring harm for the bridge, need to cross deformation bridge beam supports and change, among the prior art, the method of changing bridge beam supports is to lift up the bridge with hydraulic jack, change bridge beam supports, later fall back the jack again, last staff passes through the centre gripping instrument manual work and extracts bridge beam supports, again with new support dress, intensity of labour is great and consuming time long, has brought the degree of difficulty for bridge beam supports's change, consequently, the utility model provides a bridge beam supports extraction device solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model aims to provide a bridge beam supports draw-out device to solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a bridge beam supports draw-out device, including the U-shaped mount pad with support the base, the U-shaped mount pad slides and locates on supporting the base, it inlays through symmetry rotation around the bearing in the base and is equipped with two internal thread pipes, equal threaded connection has the threaded rod on two internal thread pipes, the threaded rod is kept away from the equal fixed connection of one end of internal thread pipe on the U-shaped mount pad, the symmetry is equipped with two connecting blocks on the U-shaped mount pad, rotate through the bearing between two connecting blocks and install two-way threaded rod, two grip blocks that are used for fixing bridge beam supports clamp are worn to be equipped with by the symmetry around on the two-way threaded rod, U-shaped mount pad top is equipped with the roof that is used for the bridge jack-up, be equipped with many hydraulic lifting columns by preceding equidistance after to on supporting.

In one alternative: the support base is provided with a first servo motor through a motor support, an output shaft of the first servo motor is connected with one of the two internal thread pipes through a gear transmission assembly, and the two internal thread pipes are connected through a belt transmission mechanism.

In one alternative: a second servo motor is fixedly mounted on the U-shaped mounting seat through a motor support, and an output shaft of the second servo motor is connected with one end of the bidirectional threaded rod.

In one alternative: and a rubber cushion is fixedly attached to the upper end face of the top plate.

In one alternative: the supporting base bottom symmetry is equipped with a plurality of supporting legss, and every supporting legss bottom is all fixed to be pasted and is equipped with the slipmat.

Compared with the prior art, the embodiment of the utility model has the following beneficial effects:

1. the device can take out old bridge beam supports mechanizedly and more renew bridge beam supports, and is little and weak point consuming time of intensity of labour, easy operation, and convenient to use has the practicality very much.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic view of the connection between the U-shaped mounting base and the supporting base according to the first embodiment of the present invention.

Fig. 3 is a schematic structural view of a U-shaped mounting seat according to a first embodiment of the present invention.

Notations for reference numerals: the device comprises a non-slip mat 1, a non-slip mat 2, supporting legs 2, a U-shaped mounting seat 3, a clamping plate 4, a top plate 5, a rubber cushion 6, a hydraulic lifting column 7, a first servo motor 8, a gear transmission assembly 9, a belt transmission mechanism 10, an internal threaded pipe 11, a supporting base 12, a threaded rod 13, a second servo motor 14, a bidirectional threaded rod 15 and a connecting block 16.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1-3, in the embodiment of the present invention, a bridge support extraction device includes a U-shaped mounting base 3 and a supporting base 12, the U-shaped mounting seat 3 is arranged on the supporting base 12 in a sliding way, the supporting base 12 is provided with a sliding chute for the sliding of the U-shaped mounting seat 3, two internal thread tubes 11 are symmetrically and rotatably embedded in the supporting base 12 in a front-back direction through a bearing, threaded rods 13 are connected to the two internal thread tubes 11 in a threaded way, one ends of the threaded rods 13 far away from the internal thread tubes 11 are fixedly connected to the U-shaped mounting seat 3, in order to realize the gliding function of drive U-shaped mount pad 3, support and have first servo motor 8 through motor support fixed mounting on the base 12, first servo motor 8's output shaft is connected through gear drive assembly 9 with one of two internal thread pipes 11, is connected through belt drive mechanism 10 between two internal thread pipes 11.

Two connecting blocks 16 are symmetrically arranged on the U-shaped mounting seat 3, a bidirectional threaded rod 15 is rotatably arranged between the two connecting blocks 16 through a bearing, the bidirectional threaded rod 15 is a rod piece with opposite thread directions on two rod sections divided by the midpoint of the bidirectional threaded rod, two clamping plates 4 used for clamping and fixing the bridge support are symmetrically arranged on the bidirectional threaded rod 15 in a penetrating manner, the two clamping plates 4 are in threaded connection with the bidirectional threaded rod 15, a second servo motor 14 is fixedly arranged on the U-shaped mounting seat 3 through a motor support, the second servo motor 14 and the first servo motor 8 are positive and negative rotation motors, the output shaft of the second servo motor 14 is connected with one end of the bidirectional threaded rod 15, further, the opposite end faces of the two clamping plates 4 are uneven, the friction force generated when the two clamping plates 4 are in contact with the bridge support is increased, and the clamping firmness is improved.

3 tops of U-shaped mount pad are equipped with roof 5 that is used for jacking the bridge, support on the base 12 by preceding being equipped with many hydraulic lifting post 7 to the back equidistance, the equal fixed connection in roof 5 bottoms in many hydraulic lifting post 7 upper ends, further, fixed the subsides are equipped with rubber cushion 6 on the 5 up end of roof for prevent to gouge it when roof 5 is with bridge jack-up.

Further, a plurality of supporting legs 2 are symmetrically arranged at the bottom of the supporting base 12, and the bottom of each supporting leg 2 is fixedly attached with an anti-skid pad 1.

Furthermore, the supporting base 12 is provided with a power interface for supplying power to each electrical appliance of the device and a control panel for controlling the on/off operation of each electrical appliance of the device.

When the bridge support is used, the hydraulic lifting column 7 is started to extend to jack a bridge to a certain height, then the first servo motor 8 is started to enable the U-shaped mounting seat 3 to slide out of the supporting base 12 until the two clamping plates 4 are positioned on two sides of a bridge support to be replaced, the second servo motor 14 is started to drive the two clamping plates 4 to clamp and fix the bridge support, then the first servo motor 8 is started to enable the first servo motor 8 to rotate reversely to extract the bridge support, a worker unloads the extracted bridge support and clamps the new bridge support through the two clamping plates 4, the first servo motor 8 is started again to send the new bridge support to the original position and loosen the clamping plates 4, and finally the hydraulic lifting column 7 is controlled to slowly shrink to put the bridge down and fall.

Example 2

The embodiment of the utility model provides a different from embodiment 1 lies in, further, in order to guarantee the device structural strength, U-shaped mount pad 3, grip block 4, roof 5 and support base 12 are made by alloy steel material.

The utility model discloses a theory of operation is: the utility model discloses when using, thereby it makes its extension jack-up take the altitude with the bridge to start hydraulic lifting column 7 earlier, then start first servo motor 8 and make U-shaped mount pad 3 follow support base 12 go up the roll-off, until two grip blocks 4 are located the bridge beam supports both sides of waiting to change, start second servo motor 14 afterwards and decide with two grip blocks 4 bridge support clamp fastening of drive, start first servo motor 8 after that and make its reverse rotation take bridge beam supports out, the bridge beam supports that the staff will extract is lifted off and is pressed from both sides the back with new bridge beam supports through two grip blocks 4, restart first servo motor 8 and send new bridge beam supports to original position and loosen grip block 4, it can to put down the fall back with the bridge to control hydraulic lifting column 7 slow shrink at last.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A bridge support extraction device comprises a U-shaped mounting seat (3) and a support base (12), and is characterized in that the U-shaped mounting seat (3) is slidably arranged on the support base (12), two internal thread pipes (11) are symmetrically and rotatably embedded in the support base (12) through bearings in a front-back manner, threaded rods (13) are connected to the two internal thread pipes (11) in a threaded manner, and one ends of the threaded rods (13) far away from the internal thread pipes (11) are fixedly connected to the U-shaped mounting seat (3);

the symmetry is equipped with two connecting blocks (16) on U-shaped mount pad (3), rotate through the bearing between two connecting blocks (16) and install two-way threaded rod (15), two grip blocks (4) that are used for fixing bridge support clamp are worn to be equipped with by the front and back symmetry on two-way threaded rod (15), U-shaped mount pad (3) top is equipped with roof (5) that are used for jacking the bridge, be equipped with many hydraulic lifting post (7) by preceding equidistance after to on supporting base (12), equal fixed connection in roof (5) bottom in many hydraulic lifting post (7) upper end.

2. The bridge bearer extraction device according to claim 1, wherein the support base (12) is fixedly provided with a first servo motor (8) through a motor bracket, an output shaft of the first servo motor (8) is connected with one of the two internally threaded pipes (11) through a gear transmission assembly (9), and the two internally threaded pipes (11) are connected through a belt transmission mechanism (10).

3. The bridge bearing extraction device according to claim 1, wherein a second servo motor (14) is fixedly mounted on the U-shaped mounting seat (3) through a motor bracket, and an output shaft of the second servo motor (14) is connected with one end of a bidirectional threaded rod (15).

4. The bridge bearing extraction device of claim 1, wherein a rubber cushion (6) is fixedly attached to the upper end face of the top plate (5).

5. The bridge bearing extraction device according to any one of claims 1 to 4, characterized in that a plurality of support feet (2) are symmetrically arranged at the bottom of the support base (12), and a non-slip mat (1) is fixedly attached to the bottom of each support foot (2).