A rocker type rack support device for automobile steering gear

Abstract

The invention discloses a rocker-type rack support device of an automobile steering gear, comprising a positioning tube and a support part located in the positioning tube, the support part includes a support frame, a support plate, a traction plate and a driving gear, and the support frame is connected from A lower seat plate, a middle connecting frame and an upper beam are arranged in sequence from bottom to top, and the number of the middle connecting frames is two and they are respectively located at both ends of the upper beam. In the present invention, a support portion is arranged in the positioning tube, a lower seat plate is arranged on the support portion, two support plates are arranged on the lower seat plate, the two support plates form a figure-eight shape, an oval matching hole is provided on the support plate, and the two support plates When the elliptical matching holes on the top are coaxially distributed, their axial projection is a circle, so when the elliptical matching holes support the rack shaft, it not only increases the contact area with the rack shaft, but also facilitates the improvement of the two elliptical shafts. The alignment of the mating holes makes the frictional resistance applied by the rack shaft to the elliptical mating holes uniform.

Description

technical field [0001] The invention relates to the technical field of rack support for automobile steering gear, in particular to a rocker type rack supporting device for automobile steering gear. Background technique [0002] A reversing rack is set in the housing of the automobile mechanical steering gear. The rack moves axially in the housing to realize the reversing operation. A support sleeve is usually installed in the housing, which is sleeved on the outside of the rack, and the support sleeve supports and guides the rack. For the purpose of fixing, the number of support sleeves is usually two, which are usually distributed at both ends of the shell, and auxiliary support devices are provided at the meshing position with the gear to avoid deformation of the rack. Since the support sleeve is fixedly installed in the shell, it is easy to appear. The problem of poor alignment between the two support sleeves and relative housing, and when the two support sleeves are supp...

AI Technical Summary

Problems solved by technology

[0002] A reversing rack is installed in the housing of the steering gear of an automobile, and the rack moves axially in the housing to realize the reversing operation. A support sleeve is usually installed outside the rack in the housing, and the support sleeve supports and guides the rack. For the role of fixing, the number of supporting sleeves is usually two, which are usually distributed at both ends of the housing, and an auxiliary supporting device is provided at the place where it meshes with the gear to avoid deformation of the rack. Since the supporting sleeve is fixedly installed in the housing, it is easy to appear The problem of the poor alignment of the two support sleeves and the poor alignment of the relative shell, and then when the two support sleeves support the rack shaft, the frictional resistance exerted by the rack shaft on the support sleeve is uneven, and it is easy to accelerate the inner gasket of the support sleeve. wear, there will be transmission noise after wear, and the gap is difficult to adjust after wear

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