DE1945233A1 - Disc spring - Google Patents

Description

LuK slats and
Clutch construction

758 Bühl / ?? den
Industriestr. 3

Disc spring

4th Sep-b. 69

0215

The invention relates to a disc spring, in particular for clutches, Gear or the like, with inwardly directed tongues that have a reinforcement which reduces the deflection of the same.

A disc spring has been named by the British patent specification 1.083.226, in which, in order to reduce the deflection of the disc spring tongues, the same are provided with a notch extending almost to the area of the two individual tongues provided with holes or in which the Tongues - seen in cross section - can be arcuate or in the form of a ßujppfen angle. However, the change · the QuerHcl'nittes the guilds encounters particular be ^one of the production difficulties, 'dft aoloh "disc springs in i'IMhemlem state ouch the Planl'-ge in a conical shape

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Must be erected and at the same time the cross section the tongues must be changed. There are great difficulties in inserting the disc spring into the previously determined one Position in the corresponding embossing tool, especially since this insertion process must be done very quickly because the disc spring cools down quickly.

The present invention was based on the "object of a To create disc springs in which the deflection of the disc spring tongues is prevented or largely reduced, their However, production is significantly simpler and the scope of application is expanded by their design according to the invention can be·

According to the invention, this is initially the case with disc springs described type achieved in that at least approximately over those particularly exposed to bending stress A reinforcement in the form of supports or reinforcement tongues is applied to zones of at least some of the tongues.

For this purpose, strip-shaped supports are expediently used, e.g. sheet metal, which can easily consist of a different, for example cheaper material than the disc spring fellbat.

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The reinforcements can be riveted, for example, and with one, two or more rivets, with the one more expedient Zone of greater or greater flexing of the tongue comes to lie between the rivets.

The application of the supports can, however, also take place, for example, by means of a metallic connection, in particular by Welding, namely spot welding or by welding with

Foreign material. .- ~.

ν · - -r

It is also possible to attach this assembly by gluing

Another possibility of applying such tongues is

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«. ■ t ■ · *
stands in the fact that the supports at least partially encompass at least parts of the delimiting contours of the tongues. For this purpose, for example, a sheet metal strip with angled or bent partial areas can be pushed onto the tongues of the disc spring, or sheet metal strips can be used. with a width that is greater than the width of the tongues at the corresponding points, placed on the tongue and then bent.

Another possible application of the present invention is in disc springs with inwardly directed tongues

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ORMStNAL INSPECTED

0215

" ⁴ " 1945203

and / or rait over the outer periphery of the disc spring body protruding readers, whereby according to a further ' Feature of the invention the conditions at least partially over the tongues and at the same time at least partially over the boom can extend. Such disc springs can, for example for the transmission of a tilting movement or a rotary movement or a torque in a particularly advantageous manner Way are used, with the torque on the boom and / or the conditions or »- on the inner diameter - on the Tongue tips or also take place over the pads can.

According to another feature of the invention, ed which for the transmission of a torque or a pivoting movement could serve, formed by the conditions themselves.

Another feature of the present invention is that the requirements at least on those with other elements, e.g. mj.t Druckstüeken or the like coming into contact areas are provided with wear protection.

It (lind already become disc springs are known in which additionally hardened dip tongue tips that come into contact, for example, _{Druckstüeken?} Ie Buf brought a greater hardness

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are as the remainder of the disc spring, by the latter mentioned measure according to the invention this hardening process can be saved and it can be with a VersohleiSschutz provided versions take over the wear reduction. Bas Equipping these requirements with wear protection can be done in done in a particularly simple and rational manner, since it is a matter of small parts that are inexpensive in large quantities can be provided with wear protection

! The wear protection can be harder than the base material of the Disc spring and / or the boom itself. The Vn sc ^ loißi p "'. Utz is more appropriate through a Maesiv hardening or but by a partial hardening baw, by a surface hardening.

However, it is also possible to apply wear protection from foreign material, for example in the form of a chrome or yoLybdenum layer or the like.

Another possibility for reducing the wear and tear of such tarring fi lids is that at least one of the friction, rubbing or scrubbing elements ; -a> b / fciut ri-böLLeri nin Verechlei 3aehufcz is applied, which is further al.) the basic material «ier Telarfeder and / or the on Ingen. A dör'irtl ^ er V * »r« iohleJfl schütz ka., N beiapie 'v.velt' · auu d * ü an aioh 1 »nknown

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BATH ORIGINAL

0215

Metal or plastic bearing materials are made of Combinations of these and those which are also known per se Processes are applied, for example by metal spraying, On sprites, sintering, galvanic etc.

The application of wear protection can also be used in the ■ known Weioe according to the so-called thin-film technology take place.

For some purposes it can be advantageous if are applied on both sides of the tongue pads.

Furthermore, it can be used for various purposes, for example for disc springs !!, which are used in friction clutches find to be particularly advantageous if the supports in the area of the tongue tips are angled in an arc shape, with the curved ends of the supports in the longitudinal direction of the tongues over diounlben hLnEiiifiragan can.

Using lot · B ¹ Ig. I - 3 the invention is explained in more detail.

Mg. 1 shows a plate spring 1 shown in FIG

Annloht while
! Lg, 2 represents a Fehmtt <; eni * ll) of the line TI-II of FIG. 1;

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In the pig. 1 and 2 is only shown on the uatereeten and the uppermost of the tongues 2 a reinforcement. A reinforcement 3, rivets 4 and 5 is attached to the bottom tongue, the reinforcement tongues 3 3 in the radially inner area being provided with an arched bend 6. A pressure piece can, for example, come to rest on the bend b of the booster tongue 3 It is advantageous if the zone of strong or strongest deflection of the plate spring tongues is included in the area between the mets 5.

On the upper tongue of the plate spring 1 it is shown that both sides this tongue 2 is each provided with a booster tongue 7 »8, which is also attached via two meters 4, 5. The upper booster tongue is designed or arranged such that they radially over the circular outer edge 1 'of the ffeller spring protrudes and thus cantilevers are formed.

Fig. 3 shows a cross section through one of the tongues 2, wherein a reinforcing tongue 9, the length edges of the tongue 2 at least partially encompassed. The booster tongue 9 can, for example be designed as a sheet metal plate and grip the plate spring tongue with claws 10 and 11 »

As mentioned earlier, it can be particularly beneficial when the conditions 3, 7, 8 or 9 at least at those points

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SAOORiG) NAL

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with which they work with other elements of a sliding, friction or Are exposed to abrasion, are provided with a wear protection. Is the disc spring according to the invention Used in friction clutches, a pressure piece can come to rest on the arched peaks 6, which is then disengaged the clutch is used. In such a case, at least the part exposed to wear and tear, namely, the tip 6 be provided with a wear protection, in the manner as it is in the introduction to the description has already been described.

The invention is not restricted to the exemplary embodiments shown. In particular, the design of the Amplifier tongues deviate from the shape shown or there can be variations of the most varied of shapes, mounting options and types of wear protection can be used.

109811/1097 BAD ORtGINAt,

Claims (23)

LuK Laneller. and _Λ _. GmbH. J 1345233 Btthl / TWen
Influx tries tr. 3 Sept. 4, 69 0215 Claims [1.jTellorfec3er, especially for clutches, gears or the like with inwardly directed tongues which have a reinforcement that reduces the deflection of the same, characterized in that at least approximately over the zones particularly exposed to sagging stress at least one of the tongues (2) has a reinforcement in Form of pads (3, 7, 8, 9) is applied. 2. Disc spring according to claim 1, characterized in that the supports (3, 7, 8, 9) are formed in a strip shape. 3 * disc spring naoh claim 1 or 2, characterized in that that the supports (3, 7, 8, 9) are riveted. 4t disc spring according to at least one of the preceding ■ prüche, daduroh marked that the conditions (3, 7, 8, 9) through a metallic connection fastened Bind » - 2 109811/1097 0215 5. Disc spring according to, at least one of the preceding Claim, characterized in that the supports (3, 7, Θ, 9) are attached by gluing. 6. Disc spring towards at least «inside of the door going Claims, characterized in that the supports (9) at least file the delimiting contours of the tongues (2) at least partially encompass. 7. Disc spring according to at least one of the preceding claims, characterized in that the supports (3, 7, Θ, 9) with at least two attachment points with the Disc spring (1) are connected. 8. Disc spring according to at least one of the preceding Claims, characterized in that the zone of the greatest deflection »lies between the attachment points (4, 5). 9. Disc spring with inwardly directed tongues and / or with protruding beyond the outer periphery of the disc spring body Brackets, characterized in that the supports (7) at least partially over the tongues (2) and at the same time at least partially extend over the boom. 10. disc spring according to Anspruoh 9 »characterized in that dl» 10 8 811/10 9 7 copy 0215 Outriggers are formed by the supports (7). 11. Disc spring according to at least one of the preceding Claims, characterized in that the supports (3, 7, 8, 9) at least on those in contact with other elements coming areas (e.g. 6) with a wear kit are provided. 12. Disc spring according to claim 11, characterized in that the wear protection is harder than the base material of the Disk spring (1) and / or the extension arm (3, 7, 8, 9) « 13. Disc spring according to claim 10, characterized in that dafl the wear protection is carried out by hardening the supports (3, 7, 8, 9). 14. Disc spring according to claim 12 or 13, characterized in that that the hardening is a partial hardening. 15. Disk spring according to one of claims 12-14, characterized in that that the hardening is a surface hardening. 16. Disc spring according to one of claims 13-15, characterized in that that the hardening is a massive hardening. 17. Disc spring according to at least one of the preceding claims, characterized in that the wear protection from third-party 109811/1097 ^C0PY 0215 material, for example a chromium or a molybdenum layer. 18.! Disk spring according to at least one of the preceding claims, characterized in that the wear protection is softer than the base material of the disc spring (1) and / or the conditions (3> 7 »8, 9). 19. Disc spring according to claim 18, characterized in that the wear protection consists of known metal and / or plastic bearing materials " 20. Disc spring according to one of the preceding claims, characterized in that the wear protection according to the so-called thin-film technology is applied. 21. Disc spring according to at least one of the preceding claims, characterized in that supports (7 »8) are applied to both sides of the tongues (2). 22. Disc spring according to one of the preceding claims, characterized in that the ends (6) of the supports (3) are angled in an arc " 23. Disc spring according to at least one of the preceding ■ inspection heights, characterized in that the curved ends (6) of the supports (3) in the longitudinal direction dir tongues (2) protrude beyond them » 109811/1097 ORIOINAL JNSPeCTHD Blank page