Railway bridge spherical support positioning device

Abstract

The utility model provides a railway bridge spherical support positioning device which comprises two lifting plates arranged above an upper support plate and two positioning plates arranged below the upper support plate, the lifting plates and the positioning plates are arranged in a # shape, the two ends of the lifting plates exceed the upper support plate, and the lower portions of the lifting plates are connected with driving parts. A fixing structure is arranged above the positioning plate, the upper end of the fixing structure abuts against the lower surface of the upper support plate, a mounting plate used for mounting the fixing structure is arranged on the positioning plate, and the lifting plate is in threaded connection with the upper support plate through a threaded hole formed in the upper support plate and used for being connected with an upper structure; the lifting plate is driven by the driving part to move, so that the upper support plate is in a horizontal state, then the upper end of the fixing structure abuts against the lower surface of the upper support plate by adjusting the fixing structure, rapid leveling of the spherical support is achieved, a large number of repeated working steps are reduced, and fatigue of workers caused by long-time repeated working is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge structure related technical field, especially railway bridge ball type support positioning device. BACKGROUND

[0002] The ball support is usually composed of an upper support plate, a lower support plate, a spherical plate, a polytetrafluoroethylene sliding plate (a planar and spherical surface part), a stainless steel plate, an anchoring bolt, a dust cover and other components. The upper support plate is connected with an upper structure (such as a beam body of a bridge), and the lower support plate is fixed on a lower structure (such as a pier cap beam). The spherical plate is embedded between the upper and lower support plates and plays a key role in rotation.

[0003] When installing the ball support, the levelness of the top surface needs to be accurately controlled. Generally, high-precision leveling instruments are used to measure the elevation of the support installation position at the installation site, and then appropriate leveling steel plates, wedge-shaped pads and other methods are set at the bottom of the support to adjust the levelness of the support, so as to ensure that each part is uniformly stressed when bearing vertical load and avoid the occurrence of local stress concentration and the impact on vertical load balance due to uneven initial installation of the support.

[0004] When using the adjusting bolt to accurately level, the adjustment range needs to be small each time, such as rotating the adjusting bolt by no more than 1 / 4 turn each time, and then measuring. According to the measurement results, the height of the support is gradually adjusted until the elevation difference of each measurement point meets the design requirements. During the adjustment process, the overall stability of the support needs to be observed to prevent the support from tilting or displacing. The adjustment process is slow and complex, requiring a large amount of fine work and being difficult to control. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a railway bridge ball support positioning device that can quickly level the upper support plate.

[0006] To this end, the utility model adopts the following technical scheme: a railway bridge ball support positioning device, comprising two lifting plates arranged above the upper support plate and two positioning plates arranged below the upper support plate, the lifting plates and the positioning plates are arranged in a "#" shape, the two ends of the lifting plates exceed the upper support plate and are connected with driving members below, the positioning plates are provided with fixed structures above, the upper ends of the fixed structures abut against the lower surface of the upper support plate, the positioning plates are provided with mounting plates for mounting the fixed structures, and the lifting plates are threadedly connected to the upper support plate through threaded holes on the upper support plate for connecting the upper structure.

[0007] As the preferred scheme of the above, the fixing structure comprises two spaced screw connection assemblies arranged on the mounting plate, the screw connection assembly comprises a nut arranged on the mounting plate and a bolt screwed on the nut, and the head of the bolt abuts against the lower surface of the upper support plate.

[0008] Further preferably, the mounting plate is formed into an L shape by bending a steel plate, and the horizontal section of the mounting plate is placed above for mounting the nut.

[0009] Further preferably, the lifting plate and the positioning plate are both made of angle steel.

[0010] Further preferably, the end of the horizontal section and the vertical section of the mounting plate are respectively welded on the vertical section and the horizontal section of the positioning plate.

[0011] Further preferably, the positioning plate is provided below with a cushion block.

[0012] Further preferably, the driving member is a jack.

[0013] The ball-type support is quickly leveled, a large number of repeated work steps are reduced, and the fatigue of the workers caused by long-time repeated work is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the utility model Figure 1 .

[0015] Figure 2 is a structural schematic diagram of the utility model Figure 2 . DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings and examples.

[0017] As Figures 1-2 shown, a railway bridge ball-type support positioning device, including setting in the two lifting plates 2 of upper support plate 1 above and setting in the two positioning plates 3 of upper support plate 1 below, lifting plate 2 and positioning plate 3 are arranged in the shape of "#", and the two ends of lifting plate 2 exceed upper support plate 1 and are connected with driving member 4 below, and the upper end of the fixing structure abuts against the lower surface of the upper support plate 1, and the mounting plate 5 for installing the fixing structure is arranged on the positioning plate 3, and the lifting plate 2 is screwed on the upper support plate 1 through the screw hole on the upper support plate 1 for connecting the upper structure.

[0018] The fixing structure comprises two threaded connection assemblies arranged on the mounting plate 5, and each threaded connection assembly comprises a nut 501 arranged on the mounting plate 5 and a bolt 502 threaded on the nut 501, and the head of the bolt 502 abuts against the lower surface of the upper support plate 1. The threaded connection assembly is connected to the mounting plate 5 and can be disassembled, has high standardization, is convenient for maintenance and replacement of parts, can adjust the height of the threaded connection assembly by screwing or unscrewing the threads, is more convenient to use, has less influence on heat, and reduces the risk of material deformation.

[0019] The mounting plate 5 is formed by bending a steel plate into an "L" shape, and the horizontal section of the mounting plate 5 is arranged above for mounting the nut 501.

[0020] The lifting plate 2 and the positioning plate 3 are both made of angle steel. The angle steel has high strength and an L-shaped cross section, and can bear forces perpendicular to the cross section.

[0021] The end of the horizontal section and the vertical section of the mounting plate 5 is welded to the vertical section and the horizontal section of the positioning plate 3, respectively. The welding ensures basic strength and can bear the weight of the upper support plate 1 above.

[0022] A cushion block 6 is arranged below the positioning plate 3. The cushion block 6 is arranged to make it more convenient to install and disassemble the positioning plate 3.

[0023] The driving member 4 is a jack. The jack has light weight, compact structure, small inertia, can realize stepless speed regulation in a large range, and can transmit motion uniformly and stably.

[0024] The driving member 4 drives the lifting plate 2 to move, so that the upper support plate 1 is in a horizontal state, and then the fixing structure is adjusted so that the upper end abuts against the lower surface of the upper support plate 1, thereby realizing rapid leveling of the spherical support, reducing a large number of repeated work steps, and avoiding fatigue of workers due to long-term repeated work.

[0025] A level gauge is arranged in front of the spherical support, for detecting whether the spherical support is horizontal. When the spherical support is not in a horizontal state, the driving member 4 on the same side is started, the driving member 4 drives one end of the lifting plate 2 to move upward, thereby lifting one side of the upper support plate 1, until the upper support plate 1 is in a horizontal state, the elevation difference of the top surface of the support is within the allowable range of ±1-2mm, at this time the driving member 4 is kept stationary, the bolt 502 on the same side of the driving member 4 is rotated to move upward on the nut 501, until it abuts against the lower surface of the upper support plate 1, the spherical support is fixed by the positioning plate 3, and the driving member 4 is turned off. The concrete below the spherical support is poured, and after pouring is completed, the lifting plate 2 and the positioning plate 3 are removed.

[0026] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A railway bridge ball-type support positioning device, characterized by: The utility model provides a lifting and positioning device for upper structure, including two lifting plates (2) set above upper support plate (1) and two positioning plates (3) set below upper support plate (1), the lifting plate (2) and positioning plate (3) are arranged in the shape of "#", the both ends of lifting plate (2) are beyond upper support plate (1) and are connected with driving part (4) below, the fixed structure is provided above positioning plate (3), the upper end of fixed structure is butted in the lower surface of upper support plate (1), the mounting plate (5) for installing fixed structure is provided on positioning plate (3), lifting plate (2) is connected on upper support plate (1) through the threaded hole for connecting upper structure on upper support plate (1).

2. A railway bridge ball-type support positioning device according to claim 1, characterized in that: The fixed structure includes two spaced apart threaded connection assemblies on mounting plate (5), the threaded connection assembly includes nut (501) arranged on mounting plate (5) and bolt (502) threaded on nut (501), the head of bolt (502) is butted in the lower surface of upper support plate (1).

3. A railway bridge ball-type bearing positioning device according to claim 2, characterized in that: The mounting plate (5) is formed into the shape of "L" by bending steel plate, and the horizontal section of mounting plate (5) is placed above for mounting nut (501).

4. A railway bridge ball-type bearing positioning device according to claim 3, characterized in that: The lifting plate (2) and positioning plate (3) are both angle steels.

5. A railway bridge ball-type bearing positioning device according to claim 4, characterized in that: The end of the horizontal section and the vertical section of the mounting plate (5) is respectively welded on the vertical section and the horizontal section of the positioning plate (3).

6. A railway bridge ball-type bearing positioning device according to claim 1, characterized in that: The positioning plate (3) is provided below with a cushion block (6).

7. A railway bridge ball-type bearing positioning device according to claim 1, characterized in that: The driving part (4) is a jack.

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