Shaft hoist load simulation hydraulic loading test device

Abstract

Provided is a shaft hoist load simulation hydraulic loading test device. The device is formed by the fact that a tested hoist rolling barrel of a hoist main lifting mechanism is integrally connected with a steel wire rope wound on an accompany-test rolling barrel of a hoist load simulation hydraulic loading test mechanism through the steel wire rope wound on the tested hoist rolling barrel. The hoist load simulation hydraulic loading test mechanism comprises a hydraulic pump / a motor, a pressure sensor, a single-way valve, an overflow valve, a torque sensor, a clutch and a speed increaser. According to the shaft hoist load simulation hydraulic loading test device, the hydraulic pump / the motor are used as a loading device and a pump device, a proportional overflow valve controls the pressure of the hydraulic pump / the motor, and continuous load and driving torque which meet actual working conditions are provided for a tested hoist.

Description

technical field [0001] The invention relates to a mine hoist load test device, in particular to a mine hoist load simulation hydraulic loading test device. Background technique [0002] Mine hoist is an important lifting equipment for mine production. It is responsible for important tasks such as lifting workers, lifting minerals or equipment, and lowering materials and equipment. It is one of the "four major pieces" of mining machinery and has the reputation of "mine throat". . The quality of its products directly affects the production safety and production efficiency of coal mines. In view of the dangerous accidents such as wire rope breakage and motor burnout in the use of hoists in mines, higher requirements are put forward for the performance of the hoist. Even if the design and manufacture are carefully considered, it should be tested through tests. . Through the test, it can be tested whether the design idea is correct, whether the design intention can be realized...

AI Technical Summary

Problems solved by technology

First of all, the traction force of the new hoist is gradually increasing, so it is very difficult to test, and some high-power hoists cannot be tested because they do not have such a large weight; secondly, due to the height limit of the steel frame, the stroke of the tower test is very short , can not simulate the actual working condition of the hoist working continuously under the mine. Some new hoists are in the form of soft start, and the tower counterweight test bench cannot reflect some characteristics of the hoist when it is started without load; It is the development direction of the hoist brake system at present, and the braking effect of constant deceleration cannot be tested in the production process

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