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Assembly method for cross shaft type universal joint

An assembly method and cross shaft technology, applied in the direction of couplings, elastic couplings, shafts and bearings, etc., can solve the problem that the input shaft 5 cannot be arranged in the same straight line.

Active Publication Date: 2017-05-10
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steering shaft 2 and the input shaft 5 of the steering gear unit 4 cannot usually be arranged on the same straight line

Method used

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  • Assembly method for cross shaft type universal joint
  • Assembly method for cross shaft type universal joint
  • Assembly method for cross shaft type universal joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] [An example of the first embodiment]

[0059] figure 1 (A)~ Figure 4 An example of the first embodiment of the present invention is shown. The cross-shaft universal joint that is the object of this example is the same as the known structure, and includes: a yoke 7a including a pair of joint arm parts 10 and a pair of circular joints formed at the front ends of the pair of joint arm parts 10. The hole 15 , the cross shaft 8 including shaft portions 17 a and 17 b , and a pair of cup bearings 18 for rotatably supporting both ends of the shaft portion 8 inside the pair of circular holes 15 . The assembly method of the cross-shaft type universal joint of this example is also the same as the existing method, and at least has the following steps: fixing a pair of joint arm parts 10 so that the inner surface of the front end of a pair of joint arm parts 10 can be fixed The process of keeping the distance between each other constant; and in the state where a pair of joint a...

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PUM

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Abstract

In order to be able to precisely install a cup bearing (18) at a section that is between the tip of a shaft part (17a) of a cross shaft (8) and a circular hole (15) that is formed in a joining arm part (10) of a yoke (7a, 7b) of a cross shaft type universal joint (6) regardless of variations in the dimensions of the joining arm part (10), the circular hole (15) in the tip thereof, and the cup bearing (18) and regardless of the elastic deformation of the joining arm part (10) of the yoke (7a) that accompanies the press-fitting of the cup bearing (18), a press-fitting punch (33) is used to press-fit the cup bearing (18) into the circular hole (15) up to a preset reference position, the value of the pressure applied to the press-fitting punch (33) at the reference position is set as a reference pressure, and the cup bearing (18) is determined to have reached a press-fitting completion position when the pressure applied to the press-fitting punch (33) is larger than the reference pressure by a preset designated value.

Description

technical field [0001] The present invention relates to a method for assembling a cross shaft type universal joint assembled in a steering device or the like for transmitting the motion of a steering shaft to a steering gear. Background technique [0002] Such as Figure 10 As shown, the steering device of the automobile is configured to transmit the movement of the steering wheel 1 to the steering gear unit 4 for steering the wheels via the steering shaft 2 and the intermediate shaft 3 . Usually, the steering shaft 2 and the input shaft 5 of the steering gear unit 4 cannot be arranged on the same straight line. Therefore, an intermediate shaft 3 is provided between the steering shaft 2 and the input shaft 5, and both ends of the intermediate shaft 3, the steering shaft 2, and the input shaft are connected via a cross-type universal joint 6 called a universal joint. The ends of the shaft 5 are connected respectively. With this configuration, it is possible to transmit rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/41
CPCF16C21/005F16C35/067F16C2361/41F16D3/382F16D3/385F16D3/405F16D3/41F16D2300/12F16C43/04F16D3/387F16D2250/0084
Inventor 村田敏和鹿内靖友
Owner NSK LTD
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