Speed-adjustable permanent magnet inductive worm and wormwheel transmission device

Abstract

The invention relates to the technical field of mechanical transmission, in particular to a speed-adjustable permanent magnet inductive worm and wormwheel transmission device which comprises a drive assembly, a driven assembly and a speed adjusting device assembly. The drive assembly is fixed arranged on the speed adjusting device assembly, a worm of the drive assembly and a wormwheel of the driven assembly form an included angle of 90 degrees, and uniform air gaps are formed between the worm and the wormwheel. When the worm is driven by a drive motor to rotate, the whole drive assembly can be driven by the speed adjusting device assembly to conduct side-to-side motion, so that the worm can be driven to move away from the wormwheel or move close to the wormwheel, and at the same time, sizes of the air gaps of conductive bodies or conductive body layers on the worm and of the permanent magnet on the wormwheel are changed and magnetic flux of an air-gap magnetic field can be quickly adjusted. Output rotating speed and torque can be better and more quickly controlled and the aim of achieving infinitely variable speed and transmitting motion and power between two mutually perpendicular shafts is achieved.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering transmission, and is an adjustable-speed permanent magnet induction worm gear transmission device, which can be widely used in power transmission mechanisms and other power transmissions between large-vibration motors and loads in industries such as mining, chemical industry, and shipping. device. Background technique [0002] At present, most of the speed regulation methods used by the high-power blowers and induced draft fans of domestic and foreign thermal power plant boiler main engines are frequency conversion speed regulation; in view of the problems that occur in the production and operation of frequency conversion speed regulators, especially the failure of frequency conversion equipment Uncertainty has brought hidden dangers to the production of power plants, directly affected the continuity, stability and reliability of production and operation, and also brought large econ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of permanent magnet induction worm gear with adjustable speed, which avoids the shortcomings of traditional mechanical transmission such as unstable transmission, high noise, large impact load, and serious friction and wear; The purpose of step speed change and the transmission of motion and power between two vertical axes in space, and solve the problem of motor heating and even failure due to excessive induction current when the motor load is started.

Images