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Method for installing crane beam in limited space

A limited space, crane girder technology, applied in the installation field of indoor electric single-girder suspension cranes, can solve the problems of high installation cost, low work efficiency, heavy workload, etc., and achieve safe installation, less labor input, and easy construction high efficiency effect

Pending Publication Date: 2022-03-22
CHINA RAILWAY SEVENTH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the crane girder is made of tailor-welded H-shaped steel with a single section length of about 6 meters, after the crane girder section is pulled up to the position, the position needs to be adjusted, and the manual climbing vehicle is used for welding, and then the next section is installed. The entire construction process The workload is heavy, the process is cumbersome, more manpower and material resources are invested, the work efficiency is low, and the installation cost is high

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  • Method for installing crane beam in limited space
  • Method for installing crane beam in limited space
  • Method for installing crane beam in limited space

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Embodiment Construction

[0022] The installation method of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0023] Taking the installation of an electric single-girder suspension crane in a workshop with a building height of 12.1m as an example, the design elevation of the top of the crane girder is 9.75m, and the height between the roof and the crane girder is 0.83m. Due to the limited installation space, it is not possible to install it by hoisting Crane beam.

[0024] If a conventional upside-down chain hoist is used to install the crane beam, 10 construction workers, 1 climbing vehicle, and 1 forklift are needed, and the construction time will take about 30 days.

[0025] When adopting the method of the present invention to install, the mechanical equipment that needs to be used is:

[0026] 1. Two lifting forklifts of the same model, with a lifting weight of 5t and a lifting height of 6m;

[0027] 2. First, use a forklift to send the ...

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Abstract

The invention discloses a method for installing a crane beam in a limited space. The method is achieved through two forklifts and brackets installed on front forks of the forklifts. The method comprises the steps of firstly installing a platform for temporarily placing crane beam sections; a crane beam section to be installed is placed on the platform; the two forklifts work synchronously, horizontally move and place the crane beam section on the two lifting devices from the two ends of the crane beam section, and synchronously lift and lift the crane beam section to the designed position height; a worker stands on the ladder truck to carry out welding operation, and installation of the crane beam section is completed; and the steps are repeated, and all the crane beam sections are installed in sequence. The maneuverability and the safe lifting performance of the forklift are used in cooperation with the self-made bracket, the crane beam segments can be conveniently pushed in place, the complexity of manually installing the crane beam through a chain block is avoided, the installation work is safer, the labor input amount is small, and the construction efficiency is high.

Description

technical field [0001] The invention relates to the installation of an indoor electric single-girder suspension crane, in particular to a method for installing a crane girder in a limited space. Background technique [0002] The crane beam refers to the running track of the electric single-girder suspension crane installed indoors. It is installed after the construction of the frame structure of the house is completed. Since the crane beam needs to be installed at the lower part of the horizontal frame beam in the house, the installation space is limited. [0003] At present, there are two main methods of installing the crane beam: if the space on the top of the house is large enough (the building is high) and the hoisting conditions are met, the crane (or crank-arm crane) can be used for direct hoisting; if the space on the roof is small , when the direct hoisting conditions are not available, the hoisting ring can be pre-embedded at the roof panel on the upper part of the ...

Claims

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Application Information

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IPC IPC(8): B66C7/08B66C13/04B66F9/06B66F9/12
CPCB66C7/08B66C13/04B66F9/06B66F9/12
Inventor 袁科陆达鹏袁光田华张浩琦王金刚孙成贾彦刚董俊涛
Owner CHINA RAILWAY SEVENTH GRP CO LTD