Permanent magnet motor built-in mining explosion-proof lifting equipment

Abstract

The invention discloses a mine explosion-proof lifting device with a built-in permanent magnet motor, which comprises a main shaft fixed on the ground; a permanent magnet motor stator fixed on the main shaft; The outer rotor of the permanent magnet motor is fixed and rotated relative to the main shaft by a web; the reel is connected with the outer rotor of the permanent magnet motor through an isolation disc; the outer circumferential surface of the outer rotor of the permanent magnet motor The radial distance from the inner wall of the drum is greater than a preset value. The isolation plate ensures that the reel is independent of the outer rotor of the permanent magnet motor and runs synchronously with it, and the reel is independent of the outer rotor of the permanent magnet motor to ensure the air gap between the outer rotor of the permanent magnet motor and the stator core The change value of the flameproof gap of the flameproof joint surface of the motor due to the external load is within the preset range. The mine explosion-proof hoisting equipment with a built-in permanent magnet motor of the present invention can improve the reliability and running stability of the mine explosion-proof hoisting equipment with a built-in permanent magnet motor.

Description

technical field [0001] The invention relates to the field of mine equipment, in particular to a mine explosion-proof hoisting equipment with a built-in permanent magnet motor. Background technique [0002] Mining explosion-proof winch is a shaft suitable for high gas and other flammable and explosive special operating environments such as coal mines, metal mines, and non-metal mines, and is used to lift materials or personnel. However, the current flameproof hydraulic winch and the traditional flameproof three-phase asynchronous motor winch with reducer have a high failure rate, low reliability and unstable operation due to heavy load and harsh operating conditions. Contents of the invention [0003] In view of this, the embodiment of the present invention expects to provide a mine flameproof hoisting equipment with a built-in permanent magnet motor, which can improve the reliability and running stability of the hoisting equipment. [0004] In order to achieve the above o...

AI Technical Summary

Problems solved by technology

However, the current flameproof hydraulic winch and the traditional flameproof three-phase asynchronous motor winch with reducer have a high failure rate, low reliability and unstable operation due to heavy load and harsh use conditions.

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