Worm supporting structure for electric steering tubular column of automobile

Abstract

The invention discloses a worm screw supporting structure for an automobile electric steering column, which comprises a worm screw, a first bearing, a riveted retaining ring, an O-shaped rubber ring and a second bearing. The beneficial effect of the present invention is that: in the worm support structure, by arranging the first bearing and the second bearing at both ends of the worm, the first bearing at one end and the worm are fixed by riveting retaining rings, so that the worm Reliable fixation is obtained in the axial direction. An O-shaped rubber ring is installed between the hole of the second bearing at the other end and the worm, so that the O-shaped rubber ring can absorb part of the impact of the worm gear and worm during the transmission process, thereby reducing the damage of the second bearing and the worm, and prolonging the life of the second bearing. 2. The service life of bearings and worms; the structure is fixed by riveting retaining rings in the axial direction and O-shaped rubber rings in the radial direction, so that the structure has simple structure, convenient assembly, high reliability, and the coordination of various parts The accuracy requirements are not high, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to a worm support structure, in particular to a worm support structure for an automobile electric steering column, and belongs to the technical application field of automobile parts. Background technique [0002] Now in the electric steering column of automobiles, the worm gear reduction mechanism is widely used, and the function of the worm is to transmit the output torque of the motor to the worm gear. Since the worm gear transmission needs to meet the requirements of smooth torque transmission, two-way transmission, low noise, etc., the realization of the requirements requires a reliable support structure for the worm. [0003] However, the existing worm support structure still has certain defects in use. The structure of the existing worm support structure is too complicated, and the assembly process is too complicated. At the same time, due to the lack of buffer between the bearing and the worm, the service life of the bearin...

AI Technical Summary

Problems solved by technology

[0003] However, the existing worm support structure still has certain defects in use. The structure of the existing worm support structure is too complicated, and the assembly process is too complicated. At the same time, due to the lack of buffer between the bearing and the worm, the service life of the bearing and the worm is reduced.

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