Detection device and detection method of torsional deformation of hoisting hook

A detection device and a technology for lifting hooks, which are applied in the field of on-site rapid quantitative detection devices, lifting hook torsional deformation detection devices, and lifting hook torsional deformation detection fields. Realization and other issues, to achieve the effect of low processing and manufacturing costs, convenient operation, and simple structure

Inactive Publication Date: 2010-01-27
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method is accurate, it is not easy to implement on site. It requires a water platform and some special measuring tools. The operation is complicated, costly, time-consuming, and requires downtime, which affects the normal production of the enterprise.

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  • Detection device and detection method of torsional deformation of hoisting hook
  • Detection device and detection method of torsional deformation of hoisting hook
  • Detection device and detection method of torsional deformation of hoisting hook

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Embodiment Construction

[0053] The torsional deformation detection device and detection method of the lifting hook of the present invention will be described in more detail below with reference to the accompanying drawings.

[0054] figure 1 It is a schematic diagram of the installation positions of the hook 1 to be tested and the torsional deformation detection device 2 of the lifting hook (hereinafter referred to as the detection device).

[0055] see figure 2, the detection device 2 is composed of a fixture 3, a reference hook frame 4 and a sliding measurement frame 5, a positioning pointer 8 is welded on the reference hook frame 4, and the reference hook frame 4 is clamped and positioned on the crane to be tested by the fixture 3 and the positioning pointer 8. The hook shank of hook 1 is used to determine the theoretical centerline benchmark required for testing. The sliding measurement frame 5 is rollingly connected with the reference hook frame 4 .

[0056] see image 3 The part of the fix...

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Abstract

The invention provides a detection device of the torsional deformation of a hoisting hook. The device comprises a clamp, a reference hook frame and a slide measurement frame, wherein the reference hook frame is designed into a shape of a theoretical central line of a hook to be measured; and the slide measurement frame measures an actual central line in a slide mode along the reference hook frame. The invention also provides a detection method of the torsional deformation of the hoisting hook, which comprises the following steps: clamping and fixing the reference hook frame on a handle part of the hook to be measured through the clamp and a positioning pointer welded on the reference hook frame; operating the slide measurement frame and recording a lateral outline central line of the hook to be measured; fitting out the actual central line; and comparing the theoretical central line with the actual central line to calculate out a torsional deformation angle. The invention has quick and convenient measurement process, no need of extra shut down, quantitative and objective measurement result and simple manufacture and is suitable for inspection and detection of various hoisting hooks.

Description

technical field [0001] The invention relates to a torsional deformation detection device of a lifting hook, in particular to an on-site rapid quantitative detection device. The invention also relates to a method for detecting torsional deformation of a lifting hook, which belongs to the field of inspection and detection of special equipment. Background technique [0002] Hoisting machinery belongs to special equipment. In order to ensure its safe operation, the state stipulates that regular inspections must be carried out on hoisting machinery. The hook is the main part of the hoisting machinery, which plays the role of connecting the hoisting machinery and heavy objects. Therefore, the regular safety inspection of the hook is the key to ensure the safe use of the hoisting machinery. It is clearly stipulated in the national technical standards for hook safety inspection that the torsional deformation of the hook body is strictly prohibited to exceed 10°. [0003] At presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/30G01B5/24
Inventor 李力王红梅陈向前张屹邓代军徐成尧
Owner CHINA THREE GORGES UNIV
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