Ring gear constant velocity universal joint

Abstract

The invention discloses a ring gear constant velocity universal joint which comprises an outer ring, a middle ring module and an inner ring which are arranged from outside to inside, wherein one end of the outer ring is open, and the inner wall of the outer ring is sphere and provided with two symmetrical first inner arc tooth grooves; the outer wall of the inner ring is sphere and provided with two symmetrical first outer arc teeth; the inner sphere surface and the outer sphere surface of the middle ring module are respectively matched with the contact surface of the inner ring and the outer ring; second arc tooth grooves matched with the first outer arc teeth are formed in the inner sphere surface of the middle ring module; and second outer arc teeth matched with the first inner arc tooth grooves are arranged on the outer sphere surface of the middle ring module. According to the ring gear constant velocity universal joint, a universal joint principle is the same as a constant velocity principle, a steel balls are not used, and adjacent outer arc teeth and inner arc tooth grooves are in linear or surface contact, so that the area of thrust surface is greatly increased, wear failure is effectively reduced, a power transmission angle is greater than that of the traditional universal joint by 20 degrees, and the turning radius of a vehicle is reduced.

Description

technical field [0001] The invention relates to a universal joint, in particular to a gear ring constant velocity universal joint. Background technique [0002] The traditional cage-type constant velocity universal joint is composed of an outer wheel, an inner wheel, a cage and 6 steel balls. The inner cavity structure of the outer wheel is composed of 6 inner arc grooves evenly distributed on the circumference and an inner spherical surface. There is an eccentric distance e1 between the center of rotation of the inner arc groove and the center of the inner spherical surface. The inner wheel structure is composed of 6 outer arc grooves evenly distributed on the circumference and one outer spherical surface. The outer arc groove There is an eccentricity e2 between the center of gyration and the center of the outer spherical surface. The cage connects the inner wheel and the outer wheel through 6 steel balls to form a constant velocity universal joint. [0003] However, the m...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the complex manufacturing process of the traditional constant velocity universal joint. When in use, the steel ball is easy to press out the grooves of the parts in contact with it or the window of the cage, resulting in a ball cage type constant velocity universal joint. Early abnormal sound and vibration failure, and the rotation angle is limited, there are certain limitations

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