Water-cooled permanent magnet energy-saving speed regulating motor

Abstract

The technology discloses a water-cooled permanent magnet energy-saving speed-regulating motor. The speed-regulating component includes a speed-regulating pull rod, a spiral groove transmission shaft, a spiral groove inner sliding sleeve, a spiral groove outer sliding sleeve and a speed-regulating bearing; the spiral groove inner sliding sleeve and the The motor housing is fixedly connected, the outer sliding sleeve of the spiral groove is set outside the inner sliding sleeve of the spiral groove; the inner sliding sleeve of the spiral groove is provided with a spiral groove, and the transmission shaft of the spiral groove is embedded in the spiral groove The sleeve is fixedly connected; the outer sliding sleeve of the spiral groove is fixedly connected with the drive shaft of the motor through the speed regulating bearing in the axial direction, and is rotationally connected in the circumferential direction; the speed regulating pull rod is fixedly installed on the outer sliding sleeve of the spiral groove; When the speed is adjusted by the speed pull rod, the spiral groove transmission shaft slides in the spiral groove of the spiral groove inner sliding sleeve to push the spiral groove outer sliding sleeve to move axially, and the speed regulating bearing fixed on the spiral groove outer sliding sleeve drives the motor rotor shaft along the axis to move. This technology realizes the purpose of stepless speed regulation, and has simple structure, good reliability and low maintenance cost.

Description

technical field [0001] The technology designs a permanent magnet energy-saving speed-regulating motor in the electromechanical field, and particularly relates to a water-cooled permanent magnet energy-saving speed-regulating motor. Background technique [0002] At present, in large industrial enterprises, such as chemical industry, cement, metallurgy and other industries, a large number of frequency converters are used in production due to the needs of the production process and the purpose of energy saving. Among them, the motors above 200 kW are mostly high-voltage motors. Especially for motors with a rated power above 400 kW, the voltage is basically 6000V or 10000V. The high-voltage frequency converter matched with the high-voltage motor has many disadvantages, mainly including: complex system, difficult maintenance and high cost. In addition, the harmonics it generates will pollute the power grid. For the electromagnetic induction speed controller, because of its sim...

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Problems solved by technology

[0004] The purpose of this technology is to provide a water-cooled permanent magnet energy-saving speed-regulating motor to overcome the shortcomings of the existing motor speed-regulating technology, such as complexity, poor reliability, and high maintenance costs.

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