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Joint cross-type universal joint yoke and manufacturing method therefor

A technology of universal joint and manufacturing method, applied in the direction of coupling, elastic coupling, rigid shaft coupling, etc., can solve the problems of inevitable cost increase and processing cost of cross-shaft universal joint, etc. low cost effect

Active Publication Date: 2016-12-14
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of any of the inventions described in Patent Documents 2 and 3, in order to suppress the occurrence of rattling, special processing is required for joining the arm portion or the cup.
Therefore, the processing cost of the cross-shaft universal joint becomes higher, and the cost rise is inevitable

Method used

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  • Joint cross-type universal joint yoke and manufacturing method therefor
  • Joint cross-type universal joint yoke and manufacturing method therefor
  • Joint cross-type universal joint yoke and manufacturing method therefor

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0094] Figure 1-6 An example of the yoke for a cross-type universal joint according to the first embodiment of the present invention is shown. Furthermore, the yoke 10a of this embodiment is characterized in that the alignment direction of the pair of joint arm portions 12a, 12a is out of phase with the alignment direction of the first and second flange portions 14a, 15a in the circumferential direction (non-parallel). local configuration). Since the structure and function of other parts are the same as those mentioned above Figures 9 to 14 The same applies to the conventional structure shown, so the same reference numerals are assigned to equivalent parts, and repeated descriptions are omitted or simplified. Hereinafter, descriptions will focus on parts that have not been described before and the characteristic parts of this embodiment.

[0095] The yoke 10a of this embodiment is a so-called pressed yoke obtained by sequentially punching and bending metal plates such as s...

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Abstract

A joint cross-type universal joint yoke in which the phases of the array direction (X) of a pair of coupling arm parts (12, 12) and the array direction (Y) of a first and a second flange part (14a, 15a) are offset in the circumferential direction. In addition, by tightening a bolt (32) and by the first and second flange parts (14a, 15a) approaching one another, a force is made to act upon the coupling arm parts (12, 12) in a direction that is inclined relative to the central axis of circular holes (19a) and in the direction in which the flange parts approach one another. Thus, cap bearings (29) incorporated in the circular holes (19a) are pressed onto the end parts of shaft parts (28a) that constitute a joint cross (27). Thus, it is possible to suppress rattling between the bearings incorporated inside the circular holes and the end parts of the shaft parts of the joint cross, said end parts being rotatably supported by the bearings.

Description

technical field [0001] The present invention relates to an improvement of a yoke constituting a cross-type universal joint (joint joint) for torque-transmittable connection of rotating shafts constituting a steering device for an automobile, for example. Background technique [0002] car steering gear Figure 7 constructed as shown. The movement of the steering wheel 1 operated by the driver is transmitted to the input shaft 6 of the steering gear unit 5 via the steering shaft 2 , the universal joint 3 , the intermediate shaft 4 , and the other universal joint 3 . Furthermore, by using the rack and pinion mechanism built in the steering gear unit 5, the left and right pair of tie rods 7, 7 are pushed and pulled, and an appropriate steering angle is given to the left and right pair of steered wheels according to the amount of operation of the steering wheel 1. In addition, as the intermediate shaft 4, generally used such as Figure 8 The shown intermediate shaft is an inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/26
CPCF16D1/0864F16D3/387B21D53/88B23P15/00
Inventor 仲村拓真黒川祥史
Owner NSK LTD
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