Electric vehicle steering bearing protection structure

Abstract

The utility model relates to electric motor car steering system technical field discloses an electric motor car steering bearing protection structure, including the steering column, the bearing seat of setting up in the outer side of steering column and the steering bearing body of embedding in bearing seat, bearing seat installs on the lower link plate, and the outer side of steering bearing body is equipped with protection subassembly, and protection subassembly includes inside dustproof structure and outside protection structure, inside dustproof structure is the dust ring of setting up on the steering column, and the inner ring of dust ring one end and steering bearing body abuts, and the other end is with the interference fit of steering column, outside protection structure is the protection cover of covering in the outer side of bearing seat, and protection cover is detachably connected in the steering column, and the clearance fit of bottom side inside and bearing seat of protection cover. The utility model inside dustproof ring blocks dust impurity, and outside protection cover adds the sealing ring and blocks rainwater, and the matching protection effect is comprehensive, the protection cover is fixed through the bolt in the outer side joint of steering column, and the dismounting is simple, and the later maintenance replacement is convenient.

Claims

1. A steering bearing protection structure for an electric vehicle, comprising a steering column (1), a bearing housing (2) sleeved on the outside of the steering column (1), and a steering bearing body (3) embedded in the bearing housing (2), wherein the bearing housing (2) is mounted on a lower connecting plate (4), characterized in that: The steering bearing body (3) is provided with a protective component on the outside, the protective component including an inner dustproof structure and an outer protective structure; The inner dustproof structure is a dustproof ring (5) sleeved on the steering column (1). One end of the dustproof ring (5) abuts against the inner ring of the steering bearing body (3), and the other end is interference-fitted with the steering column (1). The outer protective structure is a protective cover (6) that covers the outside of the bearing seat (2). The protective cover (6) is detachably connected to the steering column (1), and the inner side of the bottom edge of the protective cover (6) is clearance-fitted with the bearing seat (2).

2. The electric vehicle steering bearing protection structure according to claim 1, characterized in that: The dustproof ring (5) is made of nitrile rubber and has an inverted L-shaped cross section.

3. The electric vehicle steering bearing protection structure according to claim 2, characterized in that: The dustproof ring (5) extends to the outside of the bearing seat (2) at the top edge and has a downward bending part.

4. The electric vehicle steering bearing protection structure according to claim 1, characterized in that: The protective cover (6) has a trumpet-shaped structure, and a connecting pipe (7) is provided on the upper part of the connecting pipe (7) on the outside of the steering column (1). Multiple set bolts (8) are threaded through the side of the connecting pipe (7).

5. The electric vehicle steering bearing protection structure according to claim 4, characterized in that: The connecting pipe (7) and the protective cover (6) are integrally molded ABS plastic structures.

6. The electric vehicle steering bearing protection structure according to claim 5, characterized in that: A sealing ring (9) is provided between the connecting pipe (7) and the steering column (1).

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