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Jacking unit for beam falling of railway precast beam

A lifting unit and railway technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of low adjustment efficiency and achieve the effect of stable structure, high adjustment efficiency and small overall structure

Pending Publication Date: 2019-08-06
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional bridge positioning is to use equipment such as beam erecting machines, large truck cranes, crawler cranes or wheeled beam lifting machines. This method is greatly affected by construction environmental factors and the adjustment efficiency is low.

Method used

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  • Jacking unit for beam falling of railway precast beam
  • Jacking unit for beam falling of railway precast beam

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Experimental program
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Effect test

Embodiment Construction

[0015] as attached figure 1 , 2 As shown, the present invention includes a bottom plate 8, a horizontal adjustment device arranged on the bottom board 8 for adjusting the horizontal position, and a vertical adjustment device arranged on the horizontal adjustment device, and the vertical adjustment device is in contact with the supported member.

[0016] The horizontal adjustment device includes a reaction force block 7 fixedly arranged on the bottom plate 8 and a horizontal adjustment module and a longitudinal adjustment module arranged on the reaction force block 7. The horizontal adjustment module is the first two-way hydraulic cylinder 6, and the longitudinal adjustment module is the second Two two-way hydraulic cylinders 4, the vertical adjustment device is a vertical lifting jack 3.

[0017] The cylinder bodies of the first two-way hydraulic cylinder 6 and the second two-way hydraulic cylinder 4 are fixedly connected with the vertical adjustment device, and the piston ro...

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Abstract

The invention relates to a jacking unit for beam falling of a railway precast beam. The jacking unit comprises a bottom plate, a vertical adjusting device which is arranged on the bottom plate and used for adjusting the vertical position and a horizontal adjusting device connected with the vertical adjusting device. The jacking device is provided with the horizontal adjusting device and the vertical adjusting device, so three-way displacement adjustment is achieved; the jacking unit is simple, reliable, high in precision, high in efficiency, safe and reliable. In use, the jacking unit is placed on a bridge pier, a precast beam is lifted to the upper part of the jacking unit to support the bridge, and the position of the bridge in three directions can be adjusted through three-way displacement adjustment, so accurate positioning of the bridge is achieved, and the adjusting efficiency is high.

Description

technical field [0001] The invention relates to the technical field of bridge construction engineering, in particular to a jacking unit for railway prefabricated beams. Background technique [0002] After the prefabricated beams are transported from the prefabricated site to the construction site, the position of the bridge usually cannot reach the predetermined accuracy, which requires fine adjustments to the position of the prefabricated beams. The traditional bridge positioning is to use equipment such as beam erecting machines, large truck cranes, crawler cranes or wheeled beam lifting machines. This method is greatly affected by construction environmental factors and the adjustment efficiency is low. Therefore, how to combine the requirements of precise positioning of the girder, and design a three-way adjustment system that meets the requirements of vertical, vertical and horizontal three-way precise adjustment, large-angle slope adjustment, stable structure, safety an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 苏永华胡所亭牛斌王乐然马林班新林张松琦高策江忠贵韩晓强魏峰杨鹏健杨全亮刘文荐马慧君王舒毅陈肖越王鹏崔鑫周勇政仝强吴成亮贾宏亮
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI
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