Magnetic suspension planetary gear variable-speed motor

Abstract

The invention relates to a magnetic suspension planetary gear variable-speed motor which comprises a ring gear, a sun gear and a plurality of planet gears arranged between the ring gear and the sun gear. The ring gear, the sun gear and the planet gears are respectively provided at least one magnetic block along the radial direction of circumferential direction of an excircle per se, homopolarities of the magnetic blocks on the ring gear and the planet gears are opposite to generate repulsion so that the ring gear drives the planet gears to rotate, and the homopolarities of the magnetic blocks on the planet gears and the sun gear are opposite to generate repulsion so that the planet gears drive the sun gear to rotate. By transmitting a torque between the magnetic block on the ring gear and the magnetic block on the sun gear through the planet gears with the magnetic blocks, the overall volume of a magnetic suspension transmission mechanism is effectively reduced, meanwhile, an air gap between the ring gear as a drive body and the sun gear as a driven body is reduced, the transmission of the magnetic torque is ensured to be stable, and the variable-speed motor has the advantages of safe use, stable torque transmission and long service life.

Description

technical field [0001] The invention relates to a planetary gear speed changer, in particular to a speed changer which utilizes a magnetic levitation structure to drive a planetary gear. Background technique [0002] In the last century, inventors have proposed the magnetic levitation transmission, and used electromagnetics to design the transmission of the magnetic levitation gear. In many different types of gear transmission applications, it is necessary to isolate the active drive assembly from the passive transmission assembly. For example, in the magnetic pump invented in the last century, the active driving component can be surrounded by the first fluid, and the passive transmission component can be surrounded by the second fluid passing through, and the first and second fluids must be isolated from each other. This type of design requires that the fluids of the two must be isolated and physically separated. In order to solve this problem, a non-magnetic diaphragm ca...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the shortcomings of the deceleration or speed-up maglev transmission structure in the prior art that the volume is too large, the air gap between the driven body and the driving body is too large or too small, resulting in too large a transmission torque stall or insufficient driving force, etc., this paper The invention provides a magnetic levitation planetary gear transmission with compact structure, compact volume, small air gap between the driven body and the driving body, and sufficient torque transmission

Images