Permanent magnet type overwinding protection test stand of deep well hoisting system

Abstract

Disclosed is a permanent magnet type overwinding protection test stand of a deep well hoisting system. The test stand comprises a test stand bracket, a pneumatic device, friction wheel acceleration devices, a permanent-magnet retarder and a reverse self-locking braking device, wherein the pneumatic device, the friction wheel acceleration devices, the permanent-magnet retarder and the reverse self-locking braking device are sequentially arranged on the test stand bracket; the middle of the test stand bracket is provided with a guide rail, a moving trolley capable of sliding freely is arranged on the guide rail, the pneumatic device is located at the front end of the guide rail, the friction wheel acceleration devices are located at the two sides of the guide rail at the front side of the test stand bracket, the permanent magnet retarder is located in the middle of the test stand bracket, and the reverse self-locking braking device is positioned at the rear side of the test stand bracket. The test stand solves the problems of high operation difficulty, high risk coefficient, high experimental cost and the like in the process of detecting the performance of permanent magnet type overwinding protection devices of deep well hoisting systems on field tests in the prior art, and has the advantages of being compact in structure, safe in performance, convenient to operate and high in reliability.

Description

technical field [0001] The invention relates to an overwinding protection test bench, in particular to a deep well hoisting system permanent magnet overwinding protection test bench suitable for testing the safety of the hoisting machine system. Background technique [0002] Improving the reliability of equipment and improving the overall technical level of mining machinery and equipment is one of the future development directions of the coal industry. Deep well hoisting equipment, as an important equipment connecting the underground and the ground, has complex power transmission characteristics, frequent motor commutation, and is often in the state of overload operation and continuous switching of starting and braking. Therefore, in the case of effectively ensuring the lifting load, speed, efficiency and lifting height, improving the safety and reliability of the deep well lifting system at the same time has important practical significance for reducing the occurrence of fa...

AI Technical Summary

Problems solved by technology

[0007] Technical problem: The purpose of the present invention is to solve the problems of high operational difficulty, high risk factor, and high experimental cost in the field test and detection of the performance of the permanent magnet overwind protection device of the deep well hoisting system in the prior art, and to provide a detection deep well Safer, more convenient and reliable permanent magnet overwind protection test bench for deep well hoisting system

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