CN204300175U

CN204300175U - Clutch disk

Info

Publication number: CN204300175U
Application number: CN201420072016.9U
Authority: CN
Inventors: 罗伯特·诺茨; 奥特玛尔·贝克
Original assignee: Hoerbiger Antriebstechnik Holding GmbH
Current assignee: Hoerbiger Antriebstechnik Holding GmbH
Priority date: 2013-02-20
Filing date: 2014-02-19
Publication date: 2015-04-29
Anticipated expiration: 2024-02-19
Also published as: DE102013101695A1

Abstract

The utility model relates to a kind of clutch disk for transmission synchronizer, there is external tooth (12) and central opening (16), wherein, the periphery of described opening (16) has thickening part (22), radially-inwardly directly adjacent with the tooth root region (26) of external tooth (12) part (26) of the thickness of this thickening part (22) and described clutch disk (10) quite, and is provided with multiple support protuberance (28) erect relative to this end face (24) on the end face (24) of the gear side of described clutch disk (10).

Description

Clutch disk

Technical field

That the utility model relates to a kind of sychronisation for speed changer, that there is external tooth and central opening clutch disk (Kupplungsscheibe).

Background technology

In order to be assembled to by this clutch disk on corresponding gear, the adapter (Stutzen) attaching it to gear is above also such as welded with this adapter mutually.For moment of torsion that can be enough large from clutch disk to gear transmission, the width of weld seam need be made minimum.This is associated with the minimum widith on the opening inner periphery of clutch disk.

And at radially outward edge, the desired thickness of clutch disk is then determined by the depth of engagement of clutch collar (Schiebemuffe) in clutch disk external tooth.The crown of the external tooth of clutch disk makes the staggered engagement between teeth portion easy, and these crowns are such as configured to the shape on slope, roof.The maintenance degree of depth of external tooth must realize the enough power transmission from the teeth portion of clutch collar to clutch disk.But the size needed for this is generally less than to the thickness needed for formation weld seam or utilizes the axial length of clutch collar gear realization fully needed for covering.

Utility model content

The purpose of this utility model is, is optimized in material and manufacturing cost to clutch disk.

According to the utility model, this object is realized by a kind of clutch disk for transmission synchronizer, this clutch disk has external tooth and central opening, wherein, the periphery of described opening has thickening part, the thickness of this thickening part and this clutch disk part that radially-inwardly tooth root region that is direct and external tooth is adjacent is suitable, and on the end face of the gear side of this clutch disk, be provided with multiple support protuberance erect relative to this end face.This clutch disk has different thickness.In the region of central opening, thickness is comparatively large, and to ensure enough weld widths, the radial direction of clutch disk is then selected as directly to the thickness of interior tooth, can realize the tooth of clutch collar is optimally engaged in the external tooth of clutch disk.Although also can realize to make thickness difference enough supporting clutch disk equably on gear, being provided with support protuberance, utilizing these to support protuberance and can support clutch disk and make clutch disk stablize thus on gear.By these two measures, the thickness of clutch disk can be made to reduce major part and therefore save material when stability remains unchanged.

Advantageously, thickening part around opening, thus easily can be set up and welds with the uniform of gear in closed ground in the circumferential.But thickening part also can be formed by multiple protuberance be distributed in circumferentially.

Preferably only thickening part is set on one face.It is flat and without projection substantially that the end face of the gear dorsad of clutch disk can be designed as.

The diameter of preferred center opening is circular on each axial location, and at this, this diameter can expand towards the side of gear dorsad.

Preferably except the crown of external tooth, described thickening part and support protuberance, the thickness of clutch disk is substantial constant.

Clutch disk radially-inwardly directly and the thickness of tooth root bordering region such as can compared with little four/mono-to the half of the thickness in region, thickening part, particularly little by 1/3rd.

This support protuberance and around thickening part preferably end at identical axial height, or like this and gear match: clutch disk can be made in non-loaded state lower support on gear.

Described embodiment makes it possible to use the plate with the uniform strength of materials as the raw material of clutch disk, preferably by suitable metal plate.

Described thickening part and support protuberance can easily be manufactured by shaping.This preferably support protuberance by punching press ( ), connect (Durchstellen), upsetting (Stauchen), deep-draw (Tiefziehen) or punching (Durchsetzen) come shaping.Plastic deformation is such as passed through in thickening part, particularly by the axial bending of open circumferential or by stamping out step to be formed on periphery.

Have in the sychronisation of clutch disk as above according to of the present utility model, the clutch disk with central opening is installed on gear, makes to support protuberance and abuts on gear, at this, particularly welded mutually with gear thickening part.

For the ease of welding, can make the diameter of opening in the region of thickening part axially outwardly, particularly to the side expansion of gear dorsad.

Have in the sychronisation of clutch disk of the present utility model according to of the present utility model, the clutch disk with central opening is arranged on gear, and supports protuberance and abut on gear, is particularly welded mutually with gear thickening part at this.

Accompanying drawing explanation

Also with reference to accompanying drawing, the utility model is described in detail by multiple embodiment below.Shown in figure:

Fig. 1 is the perspective schematic view of the first embodiment according to clutch disk of the present utility model;

Fig. 2 is a part for clutch disk in Fig. 1;

Fig. 3 is the schematic sectional view being welded on the gear that schematically shows, in Fig. 1 clutch disk;

Fig. 4 to Fig. 6 illustrates the manufacturing step of the second embodiment according to clutch disk of the present utility model;

Fig. 7 to Fig. 9 illustrates the manufacturing step of the 3rd embodiment according to clutch disk of the present utility model; And

Figure 10 is the clutch disk under original state before processing.

Detailed description of the invention

Fig. 1 illustrates the clutch disk 10 of transmission synchronizer.Clutch disk 10 has external tooth 12 in its outer radial periphery.The tooth of external tooth 12 has crown 14 (referring to such as Fig. 3 and Fig. 4) in side, these crowns can easily insert in the internal tooth of unshowned clutch collar.

In addition clutch disk 10 also has central opening 16, and clutch disk 10 is installed on (Fig. 3 schematically shows) fixed support portion 20 of formation on gear 18 by this opening.The periphery of opening 16 with being designed to circumferential closure around thickening part 22, the end face 24 that this thickening part 22 exceedes other planes, the i.e. gear side of clutch disk 10 on axial A is given prominence to.

Thickening part 22 only extends relatively little region on radial r, such as, be approximately 5% to 20% of the whole radial direction extension of clutch disk 10.

Clutch disk 10 is in the thickening part 22 radially-inwardly direct region adjacent with the tooth root region 26 of external tooth 12 approximately thinner than thickening part region 1/4th.In this example, it is wide that clutch disk is about 4mm in described thickening part, and the thickness of plane is typically about 3mm.Usually, the direct radial thickness under tooth root 26 can four/mono-to half less of the region of thickening part 22.

In addition, clutch disk 10 has and is evenly distributed on its multiple support protuberances 28 (in this example being six) circumferentially on the end face 24 of gear side, and these support protuberances and erect relative to end face 24 in the axial direction.For clarity sake, Fig. 1 does not mark all supporting protuberance 28.

In this example, each support protuberance 28 extends end face 24 on axial A as thickening part 22, makes thickening part 22 and all support protuberance 28 to have identical height in the axial direction.

If be assembled to by clutch disk 10 on gear 18, then the axial end portion of thickening part 22 and the axial end portion of support protuberance 28, particularly just abut on gear 18 under the no-load condition of clutch disk 10.The remainder of end face 24 is then spaced apart with gear 18.

In addition clutch disk 10 also has multiple recess being designed to through hole, and they are such as the engagement of synchronous ring.

The end face 30 of the gear dorsad of clutch disk 10 is designed to be flat substantially in this example.

Find out as known from Fig. 3, the cross section of opening 16 is always circular on each axial height, but the bending radius owing to existing, the diameter of opening 16 expands on the direction of the end face 30 of the gear dorsad towards clutch disk 10.Gap 32 is produced thus between the surface and the inner edge 34 of opening 16 of the fixing protuberance 20 of gear 18.In the example shown, this gap 32 is used to welding of clutch disk 10 and gear 18, and at this, circular weld 36 is at least arranged in the part in gap 32.

Clutch disk 10 can be manufactured by die forging (Stanzen) and distortion by the flat sheet metal blank of foil form.

External tooth 12 can manufacture in a conventional manner.

Support protuberance 28 to be manufactured by punching press, punching or connection.

Thickening part 22 is such as formed by the axial deformation at opening 16 edge, to obtain above-mentioned bending radius.This distortion can be realized by the axial bending to periphery, punching press, connection and/or upsetting (Stauchen).

In embodiment shown in Fig. 4 to Fig. 6, manufacture method also comprises for clutch disk 10 and the step in region partly removed through sclerosis of hardening.

The sclerosis on clutch disk 10 surface is required, to improve its wearability.But the region of sclerosis is unfavorable for welding.

The blank of clutch disk shown in Fig. 4 had want subsequently manufactured go out the shape and size of clutch disk 10, except the region of inner opening 16.External tooth 12 and support protuberance 28 are formed.

Before the hardening, the thickening part of thickening part 22 will be formed subsequently by making in the axial deformation of opening 16 periphery, but now this thickening part compares to thickening part 22 and some is excessive.

This blank experience hardening process, the surface of material is hardened in this process.The shape of blank does not change when hardening.As shown in Figure 5.

As last procedure of processing, the material on opening 16 inward flange 34 is removed (Fig. 6).At this, the major part of the axial length of opening 16 is carried out constant material and removes Δ d.Additionally, by represent the end face 30 of the gear dorsad of clutch disk 10, the edge of the gear dorsad of opening 16 tiltedly changes, thus opening 16 expanded towards the end face 30 of gear dorsad.This obliqueization makes the gap 32 formed when welding with gear 18 as shown in Figure 3, and this gap 32 makes it possible to form darker weld seam.

During whole process, the end face 30 of the gear dorsad of this clutch disk remains plane substantially.

In embodiment shown in Fig. 7 to 9, in described manufacture method, first manufacture blank as shown in Figure 7.

Before the hardening, blank had with crown 14 external tooth 12 and support protuberance 28.In addition, along the periphery formation thickening part in advance of central opening 16.This thickening part in advance extends beyond the end face 24 of gear side on axial A, and also extends beyond the end face 30 of gear dorsad in part 22 '.But the outstanding width on axial A on gear side end face 24 is selected larger, for approximately doubling the outstanding width on the end face 30 of gear dorsad in this example.This thickening part in advance particularly can be formed by upsetting.

In hardening process subsequently, the shape of this blank does not change, as shown in Figure 8.

After the hardening, the thickening part 22 ' on the end face 30 of gear is dorsad removed completely, such as, its turning is fallen.Equally, be that Δ d, uniform material is removed at the enterprising line length in inner edge 34 of opening 16.By this way, produce flat unhardened region at the edge of the gear dorsad of opening 16, this region may be used for and the welding (Fig. 9) of gear 18.

Figure 10 illustrates the distortion of the blank as shown in Fig. 7 or Fig. 8.Do not arrange in this distortion and support protuberance 28.Can also remove the thickening part 22 of gear side, only arrange the thickening part on the end face 30 of gear dorsad, it is removed to expose face of weld after curing.

In the clutch disk 10 made, the end face 30 of gear is essentially flat at this dorsad.

Those skilled in the art can combine according to preference whole characteristic sum distortion described in embodiments or exchange.

It is emphasized that and can certainly process together with the end face of thickening part 22 protuberance 28 on the end face 24 of gear side after the hardening, to make them in a plane.

Claims

1., for a clutch disk for transmission synchronizer, there is external tooth (12) and central opening (16), wherein,

The periphery of described opening (16) has thickening part (22), the thickness of this thickening part (22) is suitable with a part (26) for described clutch disk (10), this part (26) radially-inwardly tooth root region (26) that is direct and external tooth (12) is adjacent, and

The end face (24) of the gear side of described clutch disk (10) is provided with multiple support protuberance (28) erect relative to this end face (24).

2. clutch disk as claimed in claim 1, is characterized in that, described thickening part (22) are in the circumferential closedly around described opening (16).

3. clutch disk as claimed in claim 1, it is characterized in that, described thickening part (22) are only arranged on an end face (24).

4. clutch disk as claimed in claim 1, it is characterized in that, the end face (30) of the gear dorsad of described clutch disk (10) is flat substantially.

5. clutch disk as claimed in claim 1, it is characterized in that, the extension in the axial direction of described support protuberance (28) is identical with described thickening part (22).

6. clutch disk as claimed in claim 1, it is characterized in that, the raw material for described clutch disk (10) is the plate with homogeneous material intensity.

7. clutch disk as claimed in claim 1, it is characterized in that, described clutch disk (10) defile is about four/tri-to half of the thickness in described thickening part (22) region to inwardly directly adjacent with described tooth root region (26) thickness.

8. clutch disk as claimed in claim 1, is characterized in that, described thickening part (22), by plastic deformation, are particularly formed by the axial bending to described periphery, deep-draw, punching press, connection and/or upsetting.

9. clutch disk as claimed in claim 1, it is characterized in that, described support protuberance (28) is formed by punching press.

10. one kind has the sychronisation as clutch disk in any one of the preceding claims wherein, wherein, the described clutch disk (10) with central opening (16) is arranged on gear (18), and described support protuberance (28) abuts on described gear (18), this particularly described thickening part (22) weld mutually with described gear (18).