Mining load limiting type permanent magnetic transmission device

Abstract

The invention discloses a mining load limiting type permanent magnetic transmission device which is arranged between a motor and a working machine. The mining load limiting type permanent magnetic transmission device comprises a mining load limiting type magnetic coupler, an input end rotary speed sensor, an output end rotary speed sensor, an input end infrared temperature sensor, an output end infrared temperature sensor and a PLC. The mining load limiting type permanent magnetic transmission device is applied to on-site practical production of a coal mine, a few problems occurred in traditional mechanical and hydraulic coupling transmission devices are solved, a practical transmission problem on site is well solved, transmission efficiency is high, soft start of a motor can be achieved, motor overload protection is achieved, bearing of volatility of load is achieved, real-time monitoring can be conducted on the operation state of equipment through a remote monitoring system, and fault diagnosis can be conducted on unusual conditions.

Description

technical field [0001] The invention belongs to the field of transmission of mining equipment, and in particular provides a torque-limiting permanent magnet transmission device for mining. Background technique [0002] At present, most of the transmission devices used in coal mines are traditional mechanical transmissions and torque-limiting hydraulic couplings. Traditional mechanical transmissions are not targeted in the application of coal mine production, and many details fail to meet coal mine safety. Standards, and there are disadvantages such as energy consumption, easy wear, and high alignment requirements. The maintenance of the hydraulic coupling is laborious, the sealing is difficult to guarantee, and the oil leakage at the oil seal is serious. The input and output ends must have good neutrality. The wear and tear of parts seriously reduces the service life of equipment. [0003] In the field of mining mechanical transmission, due to the uncertainty of the load, ...

AI Technical Summary

Problems solved by technology

When local overload occurs, the hydraulic coupling will spray oil to protect the motor, which will cause overloading of other hydraulic couplings one after another, and all hydraulic couplings will be in the state of oil injection. When normal production is restored, it is necessary to Carrying out oil change and other maintenance on the hydraulic coupling, which is time-consuming and laborious, prolongs the production cycle of the coal mine and causes great economic losses to the coal production

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