Inclined tooth planet gear and ball combined speed reducer

Abstract

The invention relates to the technical field of speed reducers, in particular to an inclined tooth planet gear and ball combined speed reducer. The inclined tooth planet gear ball combined speed reducer comprises a planet gear speed reducing module and a ball speed reducing module; the planet gear speed reducing module comprises a first input shaft, a planet carrier, a first outer shell, a first output disc and multiple inclined tooth planet gears; and the ball speed reducing module comprises a second input shaft, a second outer shell, a driving disc, a cycloidal disc, a second output disc andmultiple elliptic balls. A motion is transferred by using rotation of the inclined tooth planet gears and a first gear ring to realize first-grade speed reduction of a motor, and the motion is transferred by using rolling of the elliptic balls and a cycloidal rail groove to realize second-grade speed reduction of the motor, so that the transmission efficiency is improved; the rolling friction during rolling of the elliptic balls is lower than friction during gear engaging in a traditional gear speed reducer, so that the wear loss is reduced; and the transmission ratio errors of the planet gear speed reducing module and the ball speed reducing module are lower compared with the traditional gear speed reducer, so that the transmission ratio errors are reduced.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a helical planetary gear and ball combined reducer. Background technique [0002] The reducer plays the role of matching speed and transmitting torque between the prime mover and the working machine or the actuator. The reducer is a relatively precise machine. The purpose of using it is to reduce the speed and increase the output torque. The reducer industry is in my country With a development history of nearly 40 years, reducer products are widely used in various fields of national economy and national defense industry. At present, the industries with a relatively large amount of reducers mainly include: industrial robots, electric machinery, metallurgical machinery, environmental protection machinery, electronic appliances, etc. The number of reducer products used in these industries has accounted for 40% to 60% of the total number of reducers used in various industries in the ...

AI Technical Summary

Problems solved by technology

However, the traditional planetary reducer has low transmission efficiency, large transmission ratio error, and relatively low reduction ratio, which cannot meet the needs of modern production.

Images