A method for changing gauge of cranes in service

A crane and gauge technology, applied in the direction of hoisting device, load hanging element, bottom support structure, etc., can solve the problems of lack of market competitiveness, heavy crane structure, lack of design characteristics, etc., to reduce the workload of transformation , The effect of small transformation workload and easy implementation

Active Publication Date: 2020-11-27
SHANGHAI ZHENHUA HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above two transformation methods do not have standardized design features, and the crane structure is heavy and the transformation workload is heavy, which makes the transformation cost high, the transformation period is long, and it does not have market competitiveness.

Method used

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  • A method for changing gauge of cranes in service
  • A method for changing gauge of cranes in service
  • A method for changing gauge of cranes in service

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] Please combine figure 1 As shown, before the crane is transformed, the column part 2 above the connection beam 1 is aligned with the column part 3 below the connection beam 1, and the wheels 4 of the crane are placed on the track 5.

[0032] Please combine figure 2 As shown, when the crane needs to reduce the gauge between the wheels, disconnect the lower column 103 below the contact beam 1, move it inward to a suitable position under the contact beam 1 according to project requirements, ...

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PUM

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Abstract

The invention discloses a gauge changing method of an in-service crane. The method comprises the following steps that when the crane needs to shorten the gauge between wheels, lower stand columns at any side of a linkage beam are disconnected, and the lower stand columns are drawn close to each other inwards; when the gauge is decreased to meet the corresponding requirement, the disconnected lowerstand column is connected and fixed to the linkage beam, then, the two lower stand columns are reinforced by adopting a connecting structure, and the two lower stand columns and the linkage beam arereinforced by adopting connecting structures; when the crane needs to increase the gauge between the wheels, one extension section is connected to any end of the linkage beam, the lower stand columnsat the side with the extension section on the linkage beam are disconnected and moved outwards, when the gauge is increased to meet the corresponding requirement, the disconnected lower stand columnsare connected and fixed to the extension section, then, the two lower stand columns are reinforced by adopting a gauge increasing connecting structure, and the two lower stand columns and the linkagebeam are reinforced by adopting gauge increasing connecting structures. According to the method, the modification workloads are reduced, the construction period is shortened, and the rigidity and intensity of the crane are reinforced.

Description

technical field [0001] The invention relates to a crane transformation and repair technology, and more specifically relates to a method for changing the gauge of an in-service crane. Background technique [0002] At present, the trading market of second-hand shore-to-shore container cranes at home and abroad is becoming more and more mature. After a period of service, many cranes cannot meet the user's requirements, but the cranes have not yet reached their design life, so they will be resold to other users. Since the gauges used by different user terminals are different, the crane needs to be modified so that the wheel spacing can meet the gauge requirements of the new terminal. [0003] At present, there are many ways to improve the gauge of cranes at home and abroad, such as: [0004] 1) Completely replace the door frame on one side, and shorten or lengthen the connecting beam accordingly, so as to achieve the purpose of changing the gauge; [0005] 2) Move the lower co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C5/02
CPCB66C5/02
Inventor 王芝斌熊丁根黄宾王伟伟陈朵朵何强
Owner SHANGHAI ZHENHUA HEAVY IND
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