Spherical hinge structure with automatic gap compensation function

Abstract

The invention provides a spherical hinge structure with an automatic gap compensation function. The spherical hinge structure comprises a gear-shifting shaft, a spherical hinge lining and a spherical hinge base; a bulb is arranged at one end of the gear-shifting shaft and is contained in the spherical hinge lining; the bulb and an inner cavity of the spherical hinge lining form a spherical face pair; the spherical hinge lining is contained in the spherical hinge base and provided with at least two through holes I; a small elastic ball is arranged inside each through hole I; the ball centers of the small elastic balls and the center of the bulb are located on the same plane perpendicular to the axis of the gear-shifting shaft; the ligatures of the ball centers of at least two small elastic balls and the center of the bulb are mutually perpendicular; the small elastic balls make contact with the bulb and the spherical hinge base and are compressed and deformed in the axial direction of the through holes I. Compared with the prior art, the spherical hinge structure has the beneficial effects that a gap can be automatically compensated, the idle stroke of the gear selecting process is avoided, and comfort of driving is improved.

Description

technical field [0001] The invention relates to the field of auto parts manufacturing, in particular to a ball joint structure for automatically compensating gaps of a truck transmission operating mechanism. Background technique [0002] With the renewal of automobiles, the comfort of driving operation has become one of the directions of automobile design. A ball joint structure applied to the control mechanism of the automobile transmission in the prior art: one end of the shift shaft is connected to the joystick, and the other end is provided with a ball head, which is accommodated in the ball joint bushing and connected to the inner cavity of the ball joint bushing. A spherical pair is formed; the shape of the ball hinge bushing and the inner cavity of the ball hinge seat are both cylindrical, and the ball hinge bush is accommodated in the ball hinge seat with a clearance fit; the ball hinge seat is connected to the gear selection arm. When the transmission control mecha...

AI Technical Summary

Problems solved by technology

When the transmission control mechanism performs the gear selection operation, the joystick drives the shift shaft to swing, and the shift shaft drives the ball hinge bush to move. Due to the gap between the ball hinge bush and the ball hinge seat, the ball hinge seat cannot follow the ball hinge. The bushings move perfectly synchronously, with some delay

For the driver, due to the above reasons, the driver will feel that the joystick has a certain empty stroke when performing the gear selection operation, which affects the driver's operating feel.

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