A mine hoist safety braking performance test bench
A mine hoist and safety braking technology, which is applied in the testing of machines/structural components, measuring devices, instruments, etc., can solve the problems of ignoring the moment of inertia of the hoist, complex control system, and difficulty in achieving high precision
Active Publication Date: 2021-07-06
TAIYUAN UNIV OF TECH
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Problems solved by technology
The tower-type counterweight test bench is to install a fixed pulley on a steel frame to simulate the sky wheel, and measure the maximum pulling force of the hoist by changing the mass of the weight. Without a large enough weight, it is impossible to simulate a high-power hoist, and it is limited by the height of the steel frame. , can not simulate the actual working conditions of the hoist, and the volume is large; the hydraulic loading test bench adopts the hydraulic loading device as the hoist load, and can continuously carry out the hoist load test without being limited by the stroke, but ignores the moment of inertia of the actual hoist At the same time, the hydraulic loading is torque simulation, which leads to high requirements on the hydraulic motor in the small torque range, and the control system is complicated. It is difficult to achieve high precision due to friction, and it requires hydraulic source, power consumption and noise. , low energy utilization rate, easy oil leakage, inconvenient maintenance and repair
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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0025] A mine hoist safety brake performance test bench, including a control and power unit, a detection and display unit, and a brake test unit;
[0026] The control and power unit includes a computer 20, a servo driver 1, a servo motor 2, a detachable flywheel group 5, a fixed flywheel group 6, bolts 4, a flywheel shaft 7, a flywheel shaft bearing block 17 and a motor support 18, the servo driver and The servo motor is fixed on the motor bracket, the computer is connected to the servo driver, the servo driver is connected to the servo motor through a cable, and the shaft end of the servo motor is connected to the left end of the flywheel shaft through A coupling 3; the detachable flywheel set includes at least one detachable flywheel , the detachable flywheel is composed of two semi-circular rings 501, and the semi-circular rings are symmetrically distribut...
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The invention discloses a test bench for testing the safety brake performance of a mine hoist. The mine hoist safety braking performance test bench includes a control and power unit, a detection and display unit, and a braking test unit. It has the advantages of fast speed, and can be adjusted in two directions, simulating the safe braking conditions of different types of mine hoists at different speeds and different loads, and effectively verifying the braking effect of the hydraulic safety braking system.
Description
technical field [0001] The invention belongs to the technical field of hoisting equipment, and in particular relates to a safety braking performance test bench for a mine hoist. Background technique [0002] Mine hoists undertake the important task of conveying materials and personnel above and below the mine in the coal industry, and are called throat equipment. The braking system is an important part of mine hoisting equipment and the fundamental guarantee for its safe, reliable and efficient operation. Safety braking is a braking condition of the hoist. It means that when an abnormal situation occurs, the braking system can quickly respond and brake the friction wheel. It is the last and most important safety guarantee measure for the mine hoist. Its performance is very important to mine safety production. [0003] With the development of my country's coal industry, higher requirements are put forward for the performance of the safety braking system. In order to ensure...
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IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 黄家海汪晓娜郝惠敏宋字宇
Owner TAIYUAN UNIV OF TECH