Ball cage type constant velocity universal joint

Abstract

The invention relates to a ball cage type constant velocity universal joint which comprises a bell-shaped shell, a retainer, steel balls and a star-shaped sleeve. The ball cage type constant velocityuniversal joint is characterized in that an arc channel is selected as an inner channel of the bell-shaped shell; a double-center arc channel is selected as outer channels of the star-shaped sleeve, and the intersection points of a left arc line and a right arc line of the double-center arc channel meet on a line O1; the positions of the circle centers of the steel balls in the two adjacent outerchannels of the star-shaped sleeve are different, the positions of the circle centers of some of the steel balls meet on the line O1, while the positions of the circle centers of some of the steel balls meet on a line O2; and the linear distance between the line O1 and the line O2 is L. Due to the fact that the inner channel of the bell-shaped shell is the arc channel, the outer channels of the star-shaped sleeve are the double-center arc channel, and the steel balls of the ball cage type constant velocity universal joint are in a three-point contact channel section form, the internal contactcondition of the constant velocity universal joint is improved, the internal contact stress is effectively reduced, accordingly, the bearing capacity of the ball cage type constant velocity universaljoint can be improved, and the service life of the ball cage type constant velocity universal joint is prolonged.

Description

technical field [0001] The invention relates to the technical field of universal joints, in particular to a cage-type constant velocity universal joint. Background technique [0002] Because the ball cage type constant velocity universal joint is difficult to process and requires high precision in manufacturing, the clearance of the ball cage type constant velocity universal joint in the direction of rotation will cause greater vibration and noise during the working process of the ball cage type constant velocity universal joint. When the clearance of the universal joints in the direction of rotation is too large, an interference phenomenon will occur between the interiors of the universal joints, thereby further increasing the noise and impact that will be generated by the constant velocity universal joints. In addition, the universal joint will also be affected by other external conditions to generate vibration. Contents of the invention [0003] The technical problem t...

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Problems solved by technology

[0002] Because the ball cage type constant velocity universal joint is difficult to process and requires high precision in manufacturing, the clearance of the ball cage type constant velocity universal joint in the direction of rotation will cause greater vibration and noise during the working process of the ball cage type constant velocity universal joint. When the gap between the universal joints in the direction of rotation is too large, interference will occur between the joints, which will further increase the noise and impact that the constant velocity joint will produce

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