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Bearing affixation structure and steering gear unit using bearing affixation structure

A technology for fixing structures and bearings, applied in the directions of bearing elements, rigid brackets of bearing components, bearings, etc., can solve the problems of rising manufacturing costs, difficult machining, and complex shape of the locking groove 27, and achieve the effect of preventing the locking and falling off.

Inactive Publication Date: 2015-05-13
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the shapes of the tapered snap ring 28 and the locking groove 27 formed on the inner peripheral surface of the housing 11 become complicated, processing is difficult and there is a problem that the manufacturing cost increases.

Method used

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  • Bearing affixation structure and steering gear unit using bearing affixation structure
  • Bearing affixation structure and steering gear unit using bearing affixation structure
  • Bearing affixation structure and steering gear unit using bearing affixation structure

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Embodiment Construction

[0043] In the following, several embodiments of the bearing fixing structure of the present invention will be applied to a rack-and-pinion steering gear unit for fixing the outer ring of the first bearing fitted in the middle part of the pinion shaft to the inner peripheral surface of the housing. The situation is taken as an example and will be described in detail with reference to the accompanying drawings.

[0044] [First example of embodiment]

[0045] Figure 1 ~ Figure 3 The first example of the embodiment of the present invention is shown. The present invention is characterized in that it designs a structure for fixing a bearing to a structural member such as a casing using a tapered split ring in a mechanical device such as a rack-and-pinion steering gear unit. As for the structure of other parts constituting the mechanical device including the steering gear unit, various conventionally known structures can be adopted as long as the present invention is applicable. ...

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PUM

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Abstract

Provided is simple construction, in a mechanical apparatus such as a rack and pinion steering gear unit, for fastening a bearing that supports thrust loads to a member of the mechanical apparatus using a tapered snap ring, such that there is high rigidity against thrust loads. With the outer ring 17 of the bearing 15 positioned with respect to the housing 11a so that the axial length L 27 between the circumferential edge of the axial one side surface 32a of the locking groove 27 and the axial one side surface 34 of the outer ring 17 is less than the maximum thickness T 28a of the tapered snap ring 28a, the tapered snap ring 28a is locked into the locking groove 27. The gap 35 is provided between the axial other side surface 31 of the tapered snap ring 28a and the axial other side surface 33 of the locking groove 33.

Description

technical field [0001] The present invention relates to a structure for fixing a bearing to a member constituting a mechanical device, and more particularly, to a structure for fixing a bearing supporting an axial load to a housing or a shaft using a tapered split ring. In addition, the present invention relates to a steering gear unit constituting a steering device for providing a steering angle to steering wheels of an automobile using the above-mentioned bearing fixing structure, and particularly relates to a rack-and-pinion steering using the above-mentioned bearing fixing structure. gear unit. Background technique [0002] As a mechanism for converting rotational motion input from a steering wheel into linear motion for providing a steering angle to steered wheels, a rack-and-pinion steering gear unit is used. The structure of the steering device having the above-mentioned rack and pinion steering gear unit is as described in JP-A-2009-184591, JP-A-2004-17872, JP-A-61-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D3/12F16B21/18F16C19/10F16C19/46F16C35/07
CPCF16C2226/74F16C35/067F16C19/06F16B21/183F16C2361/61F16C2326/24F16C2240/30F16C2240/40F16C2240/42Y10T74/18808F16C19/16F16C33/1045F16C33/1065F16C33/1075F16C17/03F16C33/108B62D3/12F16C35/07
Inventor 相泽寿幸
Owner NSK LTD
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