Roof caving prevention device for jacking process of tower crane

A tower crane and jacking technology, applied in the directions of cranes, transportation and packaging, load hanging components, etc., can solve problems such as collapse and the emergence of guide wheels of the frame, so as to improve safety, ensure personal safety, and avoid collapse. effect of accident

Inactive Publication Date: 2018-09-07
安徽中安检测中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is no anti-roofing device, the installation workers did not respond in time, the hydraulic cylinder continued to push, and the guide wheel of the sleeve frame came out of the standard joint, resulting in a collapse accident

Method used

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  • Roof caving prevention device for jacking process of tower crane
  • Roof caving prevention device for jacking process of tower crane

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Embodiment Construction

[0017] In order to make the technical means, creative features, goals and effects of the invention easy to understand, the present invention will be further elaborated below in conjunction with specific illustrations.

[0018] like figure 1 and figure 2 As shown in the figure, a roof fall prevention device in the jacking process of a tower crane includes a mandrel 8 and a sheath beam 14, a sheave 1 and a support plate 6 are respectively provided on both sides of the mandrel 8, and a roller 4 is provided on the left side of the mandrel 8. , the roller 4 and the mandrel 8 are connected to the rope wheel 1 and the support plate 6 through screws, the rope pressure plate 2 is arranged on the outer side of the rope wheel 1, a steel wire rope 16 is arranged between the rope wheel 1 and the roller 4, and a hook 19 is connected to the end of the wire rope 16 , the sheave 1 is internally provided with a coil spring 15, one end of the mandrel 8 is connected to the limit switch 11 throu...

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PUM

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Abstract

The invention discloses a roof caving prevention device for a jacking process of a tower crane. The roof caving prevention device comprises a core shaft and a sleeve frame transverse beam, wherein a rope wheel and a supporting plate are arranged at two sides of the core shaft respectively; a rolling wheel is arranged at the left side of the core shaft; the rolling wheel and the core shaft are connected with the rope wheel and the supporting plate through screws; a rope pressing plate is arranged at the outer side of the rope wheel; a steel wire rope is arranged between the rope wheel and the rolling wheel; a hook is connected with the tail end of the steel wire rope; a curling spring is arranged in the rope wheel; one end of the core shaft is connected with a limiting switch through a shaft coupler; a limiting switch bracket is arranged below the limiting switch; the limiting switch bracket is fixed with the supporting plate through a connecting part A; the supporting plate is fixed with a device shell through a connecting part B; a U-shaped clamp is arranged below the device shell. The device is simple in structure and can be used for effectively preventing a collapse accident inthe jacking process of the tower crane, and the safety of construction personnel is ensured.

Description

technical field [0001] The invention relates to the technical field of protection equipment for construction hoists, and more specifically, relates to a roof-fall prevention device during the jacking up process of a tower crane. Background technique [0002] The tower body of the tower crane is assembled by fastening bolts with standard sections one by one. When the height of the tower crane is not enough, the height of the tower crane can be increased by adding standard sections. Use the tower crane auxiliary hook to lift a standard section and transport it to the space just lifted, dock with the previous standard section, fasten it, and complete a lift; if you continue to rise, the steps Same, disassembly steps are the same. Because there is no anti-roof fall device, the installation workers did not respond in time, the hydraulic cylinder continued to push, and the guide wheel of the sleeve frame came out of the standard joint, resulting in a collapse accident. Most of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/90B66C13/50
Inventor 王俊峰张申生顾金柱马少奎
Owner 安徽中安检测中心有限公司
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