Rear-drive constant-speed drive shaft assembly

Abstract

The invention discloses a rear-drive constant-speed drive shaft assembly, which mainly comprises a solid shaft and the like. The two ends of the solid shaft are each connected with a three-ball pin, the three-ball pins are axially limited through shaft check rings, the two ends of the solid shaft are connected with spherical bowls, and one ends of springs are connected into the spherical bowls. The other end of the spring is installed in an installation hole in the inner bottom of the wheel side three-column groove shell and an installation hole in the inner bottom of the transmission side three-column groove shell in an interference mode, and a supporting cushion block is arranged in the spring at the same time and installed at the inner bottom of the wheel side three-column groove shelland the inner bottom of the transmission side three-column groove shell through bolts. Mobile end tripod constant velocity universal joints are adopted on the transmission side and the wheel side, therequirements for small corner changes and installation and use displacement in the use process are met, the types of parts are reduced, the assembly process is simplified, and the purposes of designand cost reduction are achieved; a spring support hole is designed in the bottom of an inner cavity of the three-column groove shell to ensure reliable connection with a transmission side bevel gear;a special-shaped steel cable baffle ring is installed at the opening of the inner cavity of the three-column groove shell and can limit the position of the three-ball pin.

Description

technical field [0001] The invention relates to the field of constant-velocity drive shafts, in particular to a rear-drive constant-velocity drive shaft assembly. Background technique [0002] The existing rear-drive constant velocity drive shaft assembly is composed of the external splines at both ends of the solid shaft 2 and the internal splines of the star sleeve 19 of the fixed end spherical cage type constant velocity universal joint, and the three ball pin type constant velocity universal joint at the moving end. The splines in the tripod frame of the knuckle are limited by steel wire retaining ring 18 and shaft retaining ring 8 respectively, and lubricating grease is injected into the constant velocity universal joint and sealed with a dust cover. The existing technology mainly has the following defects: the structure of the assembly is consistent with that of the constant velocity drive shaft assembly of the front drive, that is, the fixed end ball cage type constan...

AI Technical Summary

Problems solved by technology

The existing technology mainly has the following defects: the structure of the assembly is consistent with that of the constant velocity drive shaft assembly of the front drive, that is, the fixed end ball cage type constant velocity universal joint and the moving end three ball pin type constant velocity universal joint are respectively used at both ends. Considering that when the front-drive constant-velocity drive shaft is installed and used, the steering angle is large and the displacement is long, and the rear-drive constant-velocity drive shaft is also installed and used, the steering angle is small and the displacement is short; The three-column housing of the knuckle is installed on the transmission side, and there are problems such as installation difficulty, difficulty in disassembly, easy detachment from the bevel gear on the transmission side, and easy slippage of the three-column housing from the three-column housing.

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