An Asymmetric Rotor Linear Rotary Motion Converter

Abstract

The invention discloses a linear and rotary motion converter for an asymmetric rotor. The linear and rotary motion converter can transmit torque and mechanical energy to achieve mutual conversion of linear motion and rotary motion. The linear and rotary motion converter for the asymmetric rotor comprises a rotary unit, a linear unit and a magnetism-adjusting mechanism, wherein the rotary unit comprises a rotor iron core and permanent magnet poles, and the permanent magnet poles are formed by splicing NdFeB permanent magnets and ferrite permanent magnets and are stuck onto the surface of the rotor iron core by adopting a segmental structure; the linear unit comprises a rotor yoke and permanent magnet poles, and radially-magnetized N-pole permanent magnets and radially-magnetized S-pole permanent magnets are stuck onto the surface of the rotor yoke alternately; the magnetism-adjusting mechanism consists of a magnetism-adjusting iron blocks for guiding magnetism. The rotary unit adopts a novel permanent magnetic rotor structure, so that the torque ripple is effectively reduced, jitter and loss of converter are reduced and the moving stability and the energy conversion efficiency of the converter are improved; the low-cost permanent magnets are used together with the high-cost permanent magnets, so that the manufacturing cost of the converter is reduced and the cost performance is improved.

Description

technical field [0001] The invention relates to an asymmetrical rotor linear rotary motion converter, which is suitable for non-contact variable speed driving occasions and belongs to the technical field of power transmission. Background technique [0002] In the fields of industrial and agricultural production, national defense, aviation, aerospace and other fields, it is often necessary to change rotary motion into linear motion, or convert linear motion into rotary motion. According to different applications, people have developed various conversion devices or equipment to meet the above requirements, such as rack and pinion, chain, wire rope, transmission belt, screw rod, crank connecting rod, slider mechanism, cam ejector mechanism, etc. In these transforming devices, linear motion parts and rotary motion parts are in contact with each other, causing problems of friction, vibration, noise, and the like. [0003] Permanent magnet rack and pinion is a non-contact transmi...

AI Technical Summary

Problems solved by technology

[0004] The traditional permanent magnet rotor uses high-performance permanent magnet materials to obtain high magnetic energy density, but also increases the torque ripple of the rotor, resulting in aggravated vibration of the converter, increased noise, and reduced operating efficiency

Images