Three-edged sleeve type detection apparatus for tension force of steel wire rope and method thereof

Abstract

The invention relates to a three-edged sleeve type detection apparatus for a tension force of a steel wire rope and a method thereof. The apparatus includes a three-edged sleeve type tension force induction plate that is buckled and pressed on a steel wire rope; a plurality of resistance strain gauges that are in an interval arrangement are arranged at positions where three surfaces of the three-edged sleeve type tension force induction plate and the steel wire rope are contacted with each other; a hollow rectangular clamping cover is arranged outside the three-edged sleeve type tension force induction plate, wherein the upper portion and the low portion of the hollow rectangular clamping cover are buckled on the steel wire rope; and a signal processor is arranged at a bottom of an inner side of the hollow rectangular clamping cover. The three-edged sleeve type tension force induction plate that is buckled and pressed on the steel wire rope is utilized; radial contraction and expansion of the steel wire rope under the effect of the tension force are converted into voltage changes of the resistance strain gauges that are arranged on the outer wall of the three-edged sleeve type tension force induction plate along a central axis; the signal processor is used to detect output voltage changes of the resistance strain gauges and a tension force change of the steel wire rope is calculated; and a radio frequency device is used to transmit tension force data of the steel wire rope to an industrial control computer, thereby realizing detection on the tension force of the steel wire rope. According to the invention, the apparatus has advantages of simple structure, convenient operation, high detection efficiency and fast detection speed.

Description

technical field [0001] The invention relates to a triangular sleeve type steel wire rope tension detection device and method, especially suitable for tension detection of round strand steel wire ropes. Background technique [0002] As a key component of hoisting, traction, and load-bearing mechanisms, wire ropes are widely used in mine hoisting, bridge suspension, aerial ropeways, etc., and their tension directly reflects the operating status of the equipment. At present, the steel wire rope tension detection mainly adopts the following three methods: one is the direct detection method of connecting the sensor in series with the steel wire rope; the other is the indirect detection method of using the three-point bending method to detect the lateral force of the steel wire rope; Oscillatory wave method for relationship between wave propagation velocities. The rope tension measuring device whose publication number is CN 200810185697.9 uses a three-point bending method to meas...

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Problems solved by technology

These methods have the following problems: one is to destroy the integrity of the steel wire rope; the other is to exert additional force on the steel wire rope, which affects its mechanical properties; the third is to install complicatedly and the detection efficiency is low

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