Mechanical horizontal steel wire rope bending fatigue testing machine and mechanical rotation driving device

Abstract

The invention discloses a mechanical horizontal steel wire rope bending fatigue testing machine and a ring-shaped combination gasket. 180-degree positive and negative rotating movement of the testing machine is realized by two half umbrella-shaped bevel gears. The machine is matched with a polyester friction gasket according to the rope diameter to carry out bending fatigue test on steel wire ropes with different diameters. The circular arc radius of the polyester friction gasket is consistent with the radius of the section of the tested steel wire rope. The polyester friction gasket can be randomly disassembled and replaced from rope sleeves of a driving wheel and a testing wheel to be installed as required. A constant value load of the machine is realized by a frame structure such as a power device, a pressure sensor, a spring and the like. A heavy method of applying a load by hanging a weight, which is adopted by other like equipment, is changed. The mechanical horizontal steel wire rope bending fatigue testing machine has high accuracy. The 1:1 steel wire rope winding testing wheel is adopted. The mechanical horizontal steel wire rope bending fatigue testing machine is consistent with the actual working condition, has simple and reasonable structure, occupies a small space and has high rigidity and strength, low deformation and small overall size.

Description

[0001] technical field [0002] The invention relates to a detection technology for the bending fatigue test of a mine steel wire rope and a detection technology for a lining used for a mine hoisting wheel, in particular to a mechanical horizontal steel wire rope bending fatigue test machine and a mechanical rotary drive device. Background technique [0003] Coal mine main shaft and auxiliary shaft are the "throats" of coal mine production. Wire rope is an important part of the main shaft and auxiliary shaft hoisting equipment, which is directly related to the normal production of coal mines, personnel safety and economic operation. [0004] Like other metal components, the steel wire rope is subjected to various stresses during work, such as static stress, dynamic stress, bending stress, torsional stress, contact stress, extrusion and twisting stress, etc. The repeated action of these stresses will cause the wire rope to appear Fatigue and broken wires, in addition wear an...

AI Technical Summary

Problems solved by technology

[0008] The currently used steel wire rope bending fatigue test is widely used in aviation, but they are all small diameter, which cannot meet the needs of existing mining hoisting and large diameter steel wire rope testing. Some production units are only to verify whether the product is qualified or not. Use the connecting rod as the swing mechanism to realize the wire rope bending fatigue testing machine, which is noisy and takes up a lot of space. At the same time, the inertial impact force is relatively large, which wastes energy.

There are oscillating bending fatigue testing machines and planetary bending fatigue testing machines in foreign countries. On the one hand, the domestic technology is immature, and on the other hand, there is a lack of relevant test data, which is not suitable for the national conditions.

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