A hoisting wire rope rope tension measuring device

Abstract

The invention relates to a wrap angle adjustable tension measuring device for a hoisting rope. The wrap angle adjustable tension measuring device comprises a support, wherein a head sheave for a to-be-measured hoisting rope to bypass is arranged at the top of an upright post of the support; a locating seat for being connected with the first end of the to-be-measured hoisting rope is arranged on the support; a hoist drum for applying traction acting force to the second end of the to-be-measured hoisting rope is also arranged on the support; the support is also provided with reverse wheels capable of moving towards the left side and the right side. Actual use conditions of the hoisting rope are simulated by using the hoist drum, the upright post, the head sheave and the locating seat; wrap angles formed by the to-be-measured hoisting rope and two leads of the head sheave can be adjusted by changing the positions of the reverse wheels so as to adapt to different testing conditions; during measurement, the tension of a corresponding rope wire is measured by matching a corresponding grating type optical fiber sensor; key technical parameters such as tension variations of the rope wires under the working condition that all the rope wires of the steel wire rope are bent and tensioned, total tension, friction moment of the hoisting rope and the head sheave and the like are quickly and accurately measured; the wrap angle adjustable tension measuring device has important significance for evaluating service life of the steel wire rope.

Description

technical field [0001] The invention relates to a device for measuring the tension of a hoisting wire rope. Background technique [0002] As an important part connecting drum, top wheel and cage in mine hoisting, hoisting wire rope bears very complex loads. When the hoisting wire rope goes around the sky wheel, due to its helical winding structure, it is subjected to nonlinear tension and bending stress changes, which seriously affects the mechanical properties and service life of the hoisting wire rope, especially the potential difference between the wires. The frictional sliding and micro-abrasion of the rope wire are likely to lead to the stress concentration of the steel wire in the rope and the risk of fatigue failure caused thereby. Once the working wire rope fails, it will lead to major safety accidents and cause serious personal and property losses. [0003] At present, there is no mature theory on the damage mechanism of steel wire ropes, and it is impossible to a...

AI Technical Summary

Problems solved by technology

The change of tension when the wire rope goes around the sky wheel is an important reason for shortening the life of the wire rope.

In the process of lifting the wire rope around the sky wheel, the tension difference of each wire in the wire rope changes too much, resulting in a significant reduction in its life. So far, there is no perfect testing device and method to test the tension of the wire rope

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