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Automobile steering lower transmission shaft assembly without welding structures

A technology without welding and transmission shaft, applied in the direction of mechanical steering gear, etc., to achieve the effect of stable rotation, reduced production cost and simple process

Inactive Publication Date: 2016-12-14
JIANGSU JINYE AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a car steering lower drive shaft assembly with no welding structure. The straightness of the assembly solves the welding deformation problem that has plagued us for a long time

Method used

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  • Automobile steering lower transmission shaft assembly without welding structures
  • Automobile steering lower transmission shaft assembly without welding structures
  • Automobile steering lower transmission shaft assembly without welding structures

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Embodiment Construction

[0025] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0026] Such as Figure 1-10 As shown in the figure, a steering lower transmission shaft assembly of a car without welding structure includes a telescopic transmission device and an upper universal joint and a lower universal joint arranged at both ends of the telescopic transmission device. The upper universal joint includes two upper and lower universal joints The joint fork ...

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Abstract

The invention provides an automobile steering lower transmission shaft assembly without welding structures. The automobile steering lower transmission shaft assembly comprises a telescopic transmission device, an upper universal joint and a lower universal joint, wherein the upper universal joint and the lower universal joint are arranged at two ends of the telescopic transmission device; the upper universal joint comprises two sleeve-loading universal joint forks and an upper universal joint cross shaft arranged between the two sleeve-loading universal joint forks; an upper locking nut is in interference fit with a locking sleeve; the locking sleeve is axially fixed on a connection sleeve; the connection sleeve is fixed on the sleeve-loading universal joint forks; the lower universal joint comprises a sleeve-unloading universal joint fork, a lower universal joint fork and a lower universal joint cross shaft arranged between the sleeve-unloading universal joint fork and the lower universal joint fork; a lower locking nut is in interference fit with the lower universal joint fork; the telescopic transmission device comprises a lower spline shaft; the lower spline shaft is fixed on the sleeve-loading universal joint forks, and is in sliding connection with a lower spline sleeve; a dustproof cover is fastened on the lower spline sleeve, and is fixed on the sleeve-unloading universal joint fork. The automobile steering lower transmission shaft assembly without the welding structures has the advantages that the welding process is eliminated, the problem of welding deformation of workpieces is solved, the overall structure is firm, the process is simple, the product quality is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of automobile steering transmission devices, in particular to an automobile steering lower transmission shaft assembly without welding structure. Background technique [0002] At present, in the domestic production of automobile steering lower drive shaft assembly, the connection between the universal joint yoke at both ends and the shaft and sleeve is welded with carbon dioxide gas protection, and the welding strength is firm and reliable. The problem is that the welding deformation after welding cannot be eliminated. The result is that the straightness of the lower transmission shaft assembly is out of tolerance, the rotation is unbalanced, and it is easy to generate vibration, which directly affects the driver's handling performance. Therefore, how to solve the welding deformation of the shaft and the shaft fork, the sleeve and the sleeve fork has always been An important issue before us needs to be serio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D3/02
CPCB62D3/02
Inventor 徐镇郑云刚丁艳
Owner JIANGSU JINYE AUTO PARTS
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