CN104813055B

CN104813055B - free wheel cage

Info

Publication number: CN104813055B
Application number: CN201380061790.8A
Authority: CN
Inventors: 亚历山大·赖姆兴
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2012-11-28
Filing date: 2013-10-29
Publication date: 2017-12-15
Anticipated expiration: 2033-10-29
Also published as: WO2014082631A1; KR20150088859A; DE102012221717A1; CN104813055A

Abstract

A freewheel cage with a base body (1a), wherein the base body (1a) has two cage rings (2, 3) arranged about a common axis, and wherein a cage web (4) extends axially between the two cage rings (2, 3), whereby a cage pocket (5) is formed, wherein the cage rings (2, 3) and the cage web (4) are formed in one piece with one another, and wherein one of the two cage rings (2, 3) has an integrally formed radially projecting element in such a way that the projecting element serves for rotation protection in the freewheel.

Description

Freewheel retainer

Technical field

The present invention relates to a kind of freewheel retainer, such as being used in clip roller freewheel mechanism.

Background technology

A kind of freewheel retainer as known in the A1 of DE 10 2,009 037 255, it includes matrix.The matrix has There are multiple retainer pocket portions arranged in a manner of being distributed circumferentially.These retainer pocket portions are used to accommodate clip body or clip Roller.Spring element is used for elasticity pressing clip body or clip roller.One in two retainer rings is configured so that the guarantor Holding the outward flange shape of frame ring has and clip is domatic moves towards corresponding shape.

The A1 of DE 10 2,008 037 972 disclose a kind of freewheel retainer, and it has matrix.In order to by matrix It is fixed on freewheel, edge disk is provided with matrix.The edge disk is configured to single component, and can be such as It is connected by welding or riveting with matrix.The trend that the outward flange shape of edge disk is domatic with clip matches.

A kind of freewheel retainer for clip body as known in the A1 of DE 10 2,008 030 017.The freedom Wheel mechanism retainer has multiple retainer pocket portions arranged in a manner of being distributed circumferentially, the cloth in these retainer pocket portions It is equipped with clip body.Clip body guides by the edge in retainer pocket portion.Freewheel retainer has the outside of tubular Edge shape.

The content of the invention

The task of the present invention is, there is provided a kind of freewheel retainer that can inexpensively manufacture.

According to the present invention, the task solves by a kind of with the freewheel retainer of matrix, wherein, matrix tool There are the two retainer rings arranged around common axis, and wherein, retainer contact pin axial direction between two retainer rings Extension, thus constructs retainer pocket portion, and wherein, constructs to retainer ring and retainer contact pin formula integral with one another, and One in two retainer rings as follows with integral molding and the element that diametrically protrudes, i.e. so that should The element of protrusion is used for the anti-torsion in freewheel.

Freewheel retainer is used for different freewheel types.Freewheel retainer itself is used to accommodate Clip body/clip roller and spring element.Freewheel retainer is arranged between actuator and driven member mostly, herein certainly By wheel mechanism retainer, either with actuator or with driven member, (drehfest) is connected in anti-relative rotation.

In the freewheel retainer according to the present invention, retainer ring and the retainer contact pin each other one of matrix are formed Construct to body formula, and in addition, one of retainer ring has the element of the protrusion of integral molding.The integral type structure of matrix The advantages of making resides in reduced production stage and manufacturing cost, because eliminating all parts, such as retainer ring and guarantor Hold the welding to each other of bridge joint piece or riveting etc..

The element of multiple protrusions arranged in a manner of being distributed circumferentially is favourable, that is to say, that for example to each Retainer pocket portion all attaches troops to a unit the element of protrusion.On the one hand the element of protrusion is used to ensure to prevent freewheel retainer in freedom Reversed in wheel mechanism.On the other hand can be realized by the element of protrusion makes freewheel retainer fixed exactly in assembling Position is in freewheel.Thus, it is possible to the mistake occurred during assembling is avoided, such as retainer contact pin is curved or spring quilt Compress.

In a preferable make, the exterior contour of the element of protrusion has and the domatic wheel to match of clip It is wide.Thus, it is possible to the element of protrusion is set to be embedded into the domatic region of clip of freewheel, so that freewheel is protected Hold the anti-torsion of frame.Preferably, the element of protrusion is constructed such that its exterior contour is corresponded to by the domatic recess formed of clip. Exterior contour can also be designed to make it move towards corresponding to the domatic whole trend of clip or part.

In a favourable design, matrix is made up of steel band, and the end of matrix is welded to one another.By by steel Matrix made of band is accomplished that, can be manufactured inexpensively out different retainer diameters.Rushed in the retainer steel band of shaping Extrude retainer pocket portion.Steel band is partitioned from corresponding length and is then bent.End is welded each other.One-piece construction The element of protrusion on retainer ring is bent in the corresponding direction.

In another preferable design of the present invention, matrix has the transverse section of section material of W shapes.

Preferably, freewheel retainer is arranged in clip roller freewheel mechanism.Clip roller freewheel machine The freewheel retainer that structure has ring and is adjacently positioned with the ring, the ring have clip domatic.Kept in freewheel Clip roller and spring element are provided with frame, wherein, spring element presses clip roller against the domatic elasticity of clip.Ring can be with It is configured to outer shroud or inner ring.

Preferably, the element of the protrusion of freewheel retainer is embedded into by the domatic recess formed of clip.This It can be realized by the corresponding exterior contour of the element of protrusion.

In the preferable design of the present invention, spring element can be fixed in retainer contact pin with end. Spring element for example can be fixed on retainer by being fastened and connected, or is fixed on by grab on retainer.But It is contemplated that other connection possibilities.

Freewheel can use in different engineering machinery and automotive field, such as the starting in automotive industry Used in machine unit or transmission device.According to the difference of application, the ring of freewheel is configured to outer shroud and inner ring.With In the freewheel of outer shroud and in the freewheel with inner ring, what working method was just as.

Brief description of the drawings

Below, embodiments of the invention are shown with reference to three accompanying drawings.Wherein：

Fig. 1 shows the stereogram of the freewheel retainer according to the present invention；

Fig. 2 shows the stereogram of the freewheel retainer according to the present invention；And

Fig. 3 shows the longitudinal section of the freewheel with the freewheel retainer according to the present invention.

Embodiment

Fig. 1 shows the freewheel retainer 1 according to the present invention.Freewheel retainer 1 has matrix 1a.Base Body 1a has two retainer rings 2,3.Retainer contact pin 4 extends between retainer ring 2,3, and they form retainer pocket together Portion 5.Construct to 4 formula integral with one another of retainer ring 2,3 and retainer contact pin.Retainer contact pin 4 has the transverse section of section material of W shapes.

Retainer ring 2 has the exterior contour of tubular.Exterior contour of the retainer ring 3 with tubular and in addition with more The element 6 of the individual protrusion arranged in a manner of being distributed circumferentially.The element 6 of protrusion is integrally molded over retainer ring herein On 3.The element 6 of protrusion is particularly for the anti-torsion in freewheel.As seen from Figure 1, the element 6 of protrusion is arranged in retainer In the region in pocket portion 5, but wherein, the element 6 of protrusion does not extend in the whole length in retainer pocket portion 5.

From Figure 2 it can be seen that it is provided with spring element 7 and clip roller 8 in retainer pocket portion 5.Spring element 7 is supported on guarantor Hold on bridge joint piece 4.In this embodiment, spring element 7 is configured to the leaf spring 9 through repeatedly folding.

Fig. 3 shows the longitudinal section with the freewheel retainer 1 according to the present invention.

As can be seen, freewheel 10 has outer shroud 11, and the outer shroud is configured to the part of tubular.In outer shroud It is configured with clip domatic 12 on 11 inner surface, these clips are domatic with unshowned part, the track of the cylinder shape of such as axle Form clip gap 15.Clip gap 15 forms narrow positions 16 in side.Spring element 7 presses against domatic 12 elasticity of clip Clip roller 8, that is to say, that clip roller 8 is clamped in clip gap 15.

In opposite side, the clip gap 15 formed by clip domatic 12 forms recess 13.Freewheel retainer 1 The element 6 of protrusion is embedded into recess 13.Therefore, region phase of the exterior contour 14 and clip domatic 12 of the element 6 of protrusion Matching.

Reference numerals list

1 freewheel retainer

1a matrixes

2 retainer rings

3 retainer rings

4 retainer contact pin

5 retainer pocket portions

The element of 6 protrusions

7 spring elements

8 clip rollers

9 leaf springs

10 freewheels

11 outer shrouds

12 clips are domatic

13 recesses

14 exterior contours

15 clip gaps

16 narrow positions

Claims

1. A freewheel cage having a base body (1a), wherein the base body (1a) has two cage rings (2, 3) arranged around a common axis, and Here, the cage web (4) extends axially between the two cage rings (2, 3), thereby forming a cage pocket (5), characterized in that the cage ring ( 2, 3) and the cage webs (4) are formed in one piece with each other, and one of the two cage rings (2, 3) has a one-piece molded and radially An upwardly protruding element (6), i.e. such that the protruding element serves to prevent rotation in a freewheel mechanism (10), wherein the outer contour (14) of the protruding element (6) corresponds to part of the clipping ramp (12), and the protruding elements (6) are arranged in the region of the cage pocket (5) but not over the entire length of the cage pocket (5) Extend up.

2. Freewheeling cage according to claim 1, wherein the base body (1a) can be produced from a steel strip, and wherein the ends of the base body (1a) are welded to each other.

3. Freewheeling cage according to claim 1 or 2, wherein the basic body (1a) has a W-shaped profile section.

4. A clamping roller free wheel mechanism, the clamping roller free wheel mechanism has a ring (11) and a ring (11) adjacent to the arrangement according to any one of claims 1 to 3 freewheel cage, wherein the ring (11) is provided with clip ramps (12), and wherein clip rollers (8) and spring elements are arranged in the freewheel cage (7), wherein the spring element (7) elastically presses the clamping roller (8) against the clamping slope (12).

5. Clipping roller freewheel mechanism according to claim 4, wherein the protruding element (6) engages in a recess (13) formed by the clipping ramp (12).

6 . The clamping roller freewheel mechanism according to claim 4 , wherein the spring element ( 7 ) can be fastened at the end to the cage web ( 4 ). 7 .