Speed-adjusting-type permanent-magnet drive system

Abstract

The invention relates to a speed-adjusting-type permanent-magnet drive system, comprising a conductor rotor (a first rotor), a magnetic rotor (a second rotor) component and a lead screw regulator, wherein the conductor rotor (the first rotor) is arranged on an input shaft; the magnetic rotor (the second rotor) is arranged on an output shaft; the conductor rotor comprises a disk-shaped steel frame and a copper conducting ring; the surface of a steel plate is provided with the copper conducting ring; the opposite surfaces of a permanent-magnet rotor and the conductor rotor are embedded with permanent magnets; the gap of the opposite surfaces of the conductor rotor and the permanent-magnet rotor can adjust an axial air clearance; and the conductor rotor and the permanent-magnet rotor are coupled by the magnetic force. When the conductor rotor rotates, the permanent-magnet rotor also rotates along the same direction with the conductor rotor due to the coupling action of the magnetic force; the conductor rotor (the first rotor) is fixedly connected with the input shaft; the permanent-magnet rotor (the second rotor) is connected with the output shaft by a shaft section; the regulator is arranged on the shaft section; and the air clearance between the disk surfaces of the two rotors can be adjusted by the regulator, thus changing the torque and the rotating speed and achieving the purpose of speed adjustment.

Description

technical field [0001] The invention relates to a speed-regulating permanent magnet drive system, which belongs to high-efficiency and energy-saving speed regulators. Background technique [0002] At present, most of the coupling mechanisms widely used in the industry are rigid connections. Due to the complex and changeable operation of the system, no matter how to ensure the strict alignment of the two axes, the equipment will vibrate after a period of operation, which will accelerate wear and shorten the life of the equipment. The use of permanent magnetic coupling can eliminate the rigid connection between the motor shaft and the load shaft, so that the vibration between the load and the motor is isolated and does not affect each other, allowing greater centering errors. When the equipment is overloaded, it can also protect the equipment and provide soft Start function. At present, frequency conversion speed regulation is widely used in industrial sites, which generates ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the coupling mechanisms widely used in the industry are rigid connections. Due to the complex and changeable operation of the system, no matter how to ensure the strict alignment of the two axes, the equipment will vibrate after a period of operation, thereby accelerating wear and shortening the life of the equipment.

Images