Device and method for testing steel wire rope tension of mine friction hoist

Abstract

The invention discloses a tension testing device and method for a steel wire rope of a mining friction type elevator. A cross beam is arranged on a support in a crossing mode, wherein the support is provided with telescopic supporting legs; a sliding rail is transversely arranged on the cross beam; a plurality of positioning holes are uniformly distributed in the sliding rail in the extending direction of the sliding rail; a base is arranged on the sliding rail in a sliding mode; limiting holes are formed in the positions, corresponding to the positioning holes, of the base; positioning pins are inserted into the positioning holes and the limiting holes so as to limit the position of the base; a thrust device is arranged on the base; the thrust device comprises a shear fork type telescopicarm and an inelastic knocking hammer arranged at the end part of the shear fork type telescopic arm; a plurality of steel balls are filled in the inelastic knocking hammer; the thrust device is driven by electromagnetic control; a wireless acceleration sensor is attracted to the steel wire rope of the friction type elevator through magnetic force; the outer part of the wireless acceleration sensor is fixed and clamped through a sensor protection clamp; and the wireless acceleration sensor sends data to a data processing system in a wireless mode. According to the device and the method, the testing efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of coal mine production, in particular to a mine-used friction hoist wire rope tension testing device and method. Background technique [0002] Friction hoist is a common equipment in coal mine production, especially for the lifting and transportation of production personnel and equipment. Once a failure occurs, it will cause serious consequences such as economic losses and even casualties. In all kinds of safety accidents, wire rope scrapping or even broken rope accidents occur frequently due to increased wear caused by unbalanced tension. In addition, the unbalanced tension will lead to uneven wear of the rope groove of the liner. Frequent turning of the rope groove until the replacement of the liner will greatly affect the production efficiency. [0003] In the prior art that can be obtained, the test methods of the tension of the wire rope mainly include: one is to install a pressure sensor in the balan...

AI Technical Summary

Problems solved by technology

However, due to the processing error of the lifting device, the displacement of the steel wire rope is different each time under continuous motion, which will cause the oil cylinder to work at the upper and lower limits and cause measurement errors

Another kind is to adopt three-point bending method, for example, publication number is that CN109230937A discloses " a kind of wire rope tension on-line monitoring device " and application number is that 200810185697.9 discloses a kind of " rope tension measuring device ", and this method has great influence on installation position, precision and The lateral displacement of the middle point of force application is relatively high, so the measurement accuracy is difficult to be guaranteed stably

There is also a steel wire rope tension test method commonly used in coal mines to measure using the vibration method. Publication number CN10726383A discloses a "multi-rope hoist wire rope tension test method and device thereof". Compared with the traditional vibration method, the measurement accuracy has been improved, but in the test process, a single steel wire rope is used for testing, and the work efficiency is low, and the vertical strike method and the hardware structure of the device are not described.

The above method either requires high installation accuracy and reliability, or has an impact on the lifting system, or has low accuracy, which cannot fully meet the needs of coal mine enterprises for wire rope tension testing in actual inspections.

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