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Method and assembly for turning over large bar under working condition of single gantry crane

A technology of gantry cranes and rods, which is applied in the direction of load hanging components, transportation and packaging, etc., which can solve the problems of large minimum specific distance between two common rail gantry cranes, lack of workshop conditions, and difficulty in turning over.

Pending Publication Date: 2020-10-20
CHINA TIESIJU CIVIL ENG GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the construction site, there is often only a single gantry crane, or the minimum specific distance between two common rail gantry cranes is relatively large, and it is difficult to complete the turning over without the conditions of the workshop

Method used

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  • Method and assembly for turning over large bar under working condition of single gantry crane
  • Method and assembly for turning over large bar under working condition of single gantry crane
  • Method and assembly for turning over large bar under working condition of single gantry crane

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are only some of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and cannot be understood as ind...

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Abstract

The invention discloses a method and assembly for turning over a large bar under the working condition of a single gantry crane. The assembly comprises a carrying pole, wherein at least one pair of upper lifting lugs are symmetrically installed at the upper part of the carrying pole and connected with a gantry crane main hook separately; at least one pair of lower lifting lugs are installed at thelower part of the carrying pole and connected with a pair of fixed pulleys respectively; and the upper lifting lugs at the upper part of the carrying pole are connected with the gantry crane main hook through U-shaped clamps and a first steel wire rope. The assembly further comprises second steel wire ropes and a gantry crane secondary hook, the second steel wire ropes are connected with the corresponding fixed pulleys by bypassing the bar to be turned over, and the gantry crane secondary hook is used for being connected with the bar through lifting lugs at the corners of the bar. According to the method and the assembly, the danger coefficient is effectively reduced, turnover is steady and reliable, and the efficiency of on-site construction is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of turning over workpieces, and in particular relates to a method and an assembly for turning over large rods under the working condition of a single gantry crane. Background technique [0002] The overturning of large-scale members is often involved in the manufacture, trial assembly and installation of large-scale bridge members. The factory conditions are relatively good, and equipment such as turning brackets and moulds can be used to turn over the poles. Two cranes can also be used: one end uses the main hook of the crane to wrap around the fixed pulley through the wire rope, and the other end uses the main and auxiliary hooks of the other crane to respectively hang the two sides of the L-shaped spreader to wrap the rod. Through the lifting and lowering of the main and auxiliary hooks, the L-shaped spreader is driven to rotate to complete the turning of the rod. [0003] On the construction site, ther...

Claims

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Application Information

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IPC IPC(8): B66C1/12B66C13/08
CPCB66C1/12B66C13/08
Inventor 杜伸云姬明辉张建金张连兵李鹏钱磊李科玉杨需要李松哲李齐格卢长龙黄绍泉崔亚琦陈威王雨周姬凯健王勋周锐
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD
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