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One-way clutch device

A technology of one-way clutches and clutches, which is applied to one-way clutches, clutches, mechanical equipment, etc., and can solve problems such as troublesome work, inability to maintain the overrunning state, and inability to rotate the bearing retainer 17b

Inactive Publication Date: 2018-03-02
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the bearing cage 17b is strongly clamped, there is a possibility that the bearing cage 17b cannot rotate relative to the inner ring 3 and cannot maintain the overrunning state.
In addition, when assembling the one-way clutch device, in the stage before forming the other outward flange portion 5b, the clutch retainer 11 mounted on the radially outer side of the inner ring 3 may protrude from the outer surface of the inner ring 3. Accidentally falling off from the radial side to the other side of the axial direction
Therefore, the work of forming the other outward flange portion 5b needs to be performed while paying close attention to the falling off of the clutch retainer 11, and accordingly, the work becomes troublesome.

Method used

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  • One-way clutch device
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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0038] [the first example of embodiment]

[0039] Figure 1 to Figure 5 One example of the embodiment of the present invention is shown. The one-way clutch device of this example basically includes the inner ring 3 , a plurality of rollers 10 as a plurality of engaging elements, and a clutch cage 11 a as in the conventional example. The inner ring 3 is made of a metal plate, and includes a cylindrical portion 4 and a pair of outward flange portions 7 a , 7 b provided at both ends in the axial direction of the cylindrical portion 4 . At an axially intermediate portion of the outer peripheral surface of the cylindrical portion 4 , a cam surface 6 serving as an engagement surface on the inner diameter side constituting the roller clutch 1 is provided. On the cam surface 6 , a plurality of cam recesses 8 are formed at equal intervals in the circumferential direction, and the depth of each cam recess 8 increases toward the circumferential direction side. In addition, at both end...

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PUM

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Abstract

The present invention provides a one-way clutch device, which is configured to limit the axial direction of a metal clutch retainer (11a) relative to the inner ring (3a) while suppressing the amount of machining of the inner ring (3a) to a small amount. Displacement limiting parts. A hemispherical engaging concave portion (22) is formed on the cam surface (6) of the inner ring (3a), and a hemispherical engaging convex portion ( twenty three). When attaching the clutch retainer (11a) to the outer diameter side of the cam surface (6), by engaging the engaging concave portion (22) with the engaging convex portion (23), the opposing clutch retainer (11a) is limited. A limiting part for the axial displacement of the inner ring (3a).

Description

technical field [0001] The present invention relates to a one-way clutch device capable of transmitting rotational force between two members concentrically combined only when the two members tend to rotate relative to each other in a predetermined direction. Background technique [0002] A one-way clutch that transmits only rotational motion in a predetermined direction is incorporated in the rotation transmission part of various mechanical devices such as the starter of the idling stop car, the alternator and other automotive accessories, and the oil pump for the transmission. In addition, as described in Japanese Patent No. 3657330, the one-way clutch and the rolling bearing are also unitized by using common components to constitute a one-way clutch device. refer to Figure 8 with Figure 9 An example of such a one-way clutch device will be described. In this one-way clutch device, a roller clutch 1 serving as a one-way clutch and a pair of cylindrical roller bearings 2a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D41/06
CPCF16D41/067F16D41/064
Inventor 森博史
Owner NSK LTD