DE1103690B - Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture - Google Patents

Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture

Info

Publication number
DE1103690B
DE1103690B DEL30260A DEL0030260A DE1103690B DE 1103690 B DE1103690 B DE 1103690B DE L30260 A DEL30260 A DE L30260A DE L0030260 A DEL0030260 A DE L0030260A DE 1103690 B DE1103690 B DE 1103690B
Authority
DE
Germany
Prior art keywords
clutches
motor vehicle
spring
hardness
tongues
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEL30260A
Other languages
German (de)
Inventor
Dr-Ing Kurt Haeussermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LuK Lamellen und Kupplungsbau GmbH
Lamellen und Kupplungsbau August Haeussermann GmbH
Original Assignee
LuK Lamellen und Kupplungsbau GmbH
Lamellen und Kupplungsbau August Haeussermann GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LuK Lamellen und Kupplungsbau GmbH, Lamellen und Kupplungsbau August Haeussermann GmbH filed Critical LuK Lamellen und Kupplungsbau GmbH
Priority to DEL30260A priority Critical patent/DE1103690B/en
Publication of DE1103690B publication Critical patent/DE1103690B/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/32Belleville-type springs
    • F16F1/324Belleville-type springs characterised by having tongues or arms directed in a generally radial direction, i.e. diaphragm-type springs
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00Friction clutches
    • F16D13/58Details
    • F16D13/583Diaphragm-springs, e.g. Belleville

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Operated Clutches (AREA)

Description

Tellerfeder für Kupplungen, insbesondere für Kraftfahrzeugkupplungen, und Verfahren zu ihrer Herstellung Die Erfindung bezsieht sich auf Tellerfedern für Kupplungen, insbesondere für Kraftfahrzeugkupplungen, bei denen radial oder schräg nach innen ragende Zungen vorgesehen sind. Diese Zungen -dienen ,im allgemeinen als Angriffspunkte für die mit dem Ausrücken (Druckstück) verbundene Anlaufscheibe. Diese Anlaufscheibe kann drehbar, .beispielsweise in Kugeln, gelagert sein; sie kann aber auch stillstehen und so einen Gleitkörper, beispielsweise aus Stahl, bilden.Disk springs for clutches, in particular for motor vehicle clutches, and method of making them. The invention relates to disc springs for clutches, especially for motor vehicle clutches, where radial or obliquely inwardly projecting tongues are provided. These tongues serve, in general as points of application for the thrust washer connected to the disengagement (pressure piece). This thrust washer can be rotatably mounted, for example in balls; she but can also stand still and thus form a sliding body, for example made of steel.

Die Zungentellerfeder wurde bisher als Ganzes gleichmäßig gehärtet. Infolge der Anlage der einzelnen Spitzen der Zungen der Tellerfeder am Druckring oder der Anlaufscheibe sind diese Spitzen einem sehr erheblichen Verschleiß ausgesetzt, der bisher in Kauf genommen wurde.The tongue disc spring has been hardened evenly as a whole. As a result of the installation of the individual tips of the tongues of the disc spring on the pressure ring or the thrust washer, these tips are exposed to very considerable wear, which has been accepted so far.

Dieser Nachteil wird bei Tellerfedern für Kupplungen, insbesondere Kraftfahrzeugkupplungen, mit nach,innen zu radial oder schräg verlaufenden Zungen gemäß ;der Erfindung dadurch beseitigt, daß die Tellerfeder an .ihren inneren Zungenspitzen eine größere Härte aufweist als in der äußeren Zone.This disadvantage is particularly evident in the case of disc springs for clutches Motor vehicle clutches with tongues extending radially or obliquely inwards in accordance with the invention eliminated in that the disc spring is attached to its inner tongue tips has a greater hardness than in the outer zone.

Vorteilhaft wird dabei so vorgegangen, daß die Tellerfeder zunächst als Ganzes in bekannter Weise auf Federhärte gebracht wird und dann die Zungenspitzen durch eine zweite, nur sie erfassende Härtung zusätzlich auf eine höhere Härte gebracht werden.It is advantageous to proceed in such a way that the plate spring is initially as a whole is brought to spring hardness in a known manner and then the tongue tips by a second hardening that only affects them, it is additionally brought to a higher hardness will.

Durch die Erfindung wird also die Härtung der Federscheibe derart vorgenommen, daß die inneren Zungenenden der Tellerfederscheibe einen höheren Härtegrad erhalten als der übrige Teil der Zungen und die nicht durchbrochene Ringzone :der Tellerfeder aufweisen. Durch diese Maßnahme können .die bekannten Verschleißerscheinungen an den Spitzen der Tellerfedern für Kupplungen vermieden werden, und es wird somit eine weitaus größere Betriebsdauer der Tellerfeder und er Kupplung erreicht.With the invention so the hardening of the spring washer is so made that the inner tongue ends of the Belleville washer have a higher degree of hardness preserved than the rest of the tongues and the uninterrupted ring zone: the Have disc spring. This measure can prevent the known signs of wear at the tips of the disc springs for clutches can be avoided, and thus it will a much longer service life of the disc spring and he clutch achieved.

Die der Erfindung gemäß vorgesehene größere Härte der Zungenenden der Tellerfedern ist nicht nur bei Kupplungen mit Anlaufscheiben von Vorteil, sondern auch bei Kupplungen, in denen diese Zungen unmittelbar in radiale, wechselweise seitlich ,gegeneinander versetzte Öffnungen des Druckstückes eingreifen und das vorzugsweise aus gezogenem Blech hergestellte Druckstück von den Zungen gehalten wird. Da auch bei dieser Konstruktion die Enden der Zungen besonders beansprucht sind, wird !der Verschleiß der Zungenspitzen infolge der weit größeren Härte an diesen Stellen herabgesetzt.The greater hardness of the tongue ends provided according to the invention the disc springs is not only beneficial for clutches with thrust washers, but even with clutches in which these tongues are directly in radial, alternately laterally, mutually offset openings of the pressure piece engage and that Preferably made of drawn sheet metal pressure piece held by the tongues will. Because the ends of the tongues are particularly stressed in this construction the wear of the tongue tips will increase due to the much greater hardness these places are reduced.

In der Zeichnung ist der Gegenstand der Erfindung am Beispiel einer Zungentellerfederdargestellt.In the drawing, the subject matter of the invention is exemplified by one Tongue disc spring shown.

Fig. 1 zeigt eine Ansicht auf ,die Federplatte einer Kupplung; Fig.2 einen Axialschnitt mit schematisch dargestellter Anlaufscheibe. Die Tellerfeder 1 besitzt an sich bekannte Zungen 2, deren Enden 3 gegen eine Anlaufscheibe 4 anliegen.Fig. 1 shows a view of the spring plate of a clutch; 2 shows an axial section with the thrust washer shown schematically. The plate spring 1 has tongues 2 known per se, the ends 3 of which bear against a thrust washer 4.

Die Anlaufscheibe 4 ist mit dem axialbeweglichen Ausrücken der Kupplung verbunden. Beire Durchdrücken des Ausrückers übt ,die Anl.ajufscheibe 4, an welcher die Enden 3 der Tellerfederzungendauernd anliegen, :einen Druck in axialer Richtung aus. Dabei liegen, wie Fig. 2 zeigt, die Enden 3 der Tellerfederzungen dauernd gegen die Anlaufscheibe 4 oder ein sonstiges Druckstück schleifend an und sind stark auf Verschleiß beansprucht. Die bisherige starke Abnutzung wird durch :die mit der vorgesehenen Härtung erzielbaren Erhöhung der Verschleißfestigkeit der Enden 3 vermieden.The thrust washer 4 is connected to the axially movable disengagement of the clutch. When the releaser is pushed through, the stop disc 4, on which the ends 3 of the disc spring tongues are permanently in contact, exerts pressure in the axial direction. Here, as FIG. 2 shows, the ends 3 of the plate spring tongues are constantly rubbing against the thrust washer 4 or some other pressure piece and are subject to heavy wear. The previous heavy wear is avoided by: the increase in the wear resistance of the ends 3 that can be achieved with the intended hardening.

Claims (2)

PATENTANSPRÜCHE: 1. Tellerfeder für Kupplungen, insbesondere Kraftfahrzeugkupplungen, mit nach innen zu radial oder schräg verlaufenden Zungen, dadurch gekennzeichnet, daß die Tellerfeder an ihren inneren Zungenspitzen (3) eine größere Härte aufweist als in der äußeren Zone. PATENT CLAIMS: 1. Disk springs for clutches, especially motor vehicle clutches, with tongues extending radially or obliquely inwards, characterized in that that the disc spring has a greater hardness at its inner tongue tips (3) than in the outer zone. 2. Verfahren zum Herstellen von Tellerfedern nach Anspruch 1, dadurch gekennzeichnet, daß die Tellerfeder zunächst als Ganzes in bekannter Weise auf Federhärte gebracht wird und dann die Zungenspitzen durch eine zweite, nur sie erfassende Härtung zusätzlich auf eine höhere Härte gebracht werden. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 681610, 943 636, 960 780; Ortlinghaus-Werbeblatt Nr.3002/4/53; Motor-Rundschau, 22, 1955, S. 688.2. A method for producing disc springs according to claim 1, characterized in that the disc spring is first brought as a whole in a known manner to spring hardness and then the tongue tips are additionally brought to a higher hardness by a second hardening that only covers them. Considered publications: German Patent Specifications No. 681610, 943 636, 960 780; Ortlinghaus advertising leaflet No. 3002/4/53; Motor-Rundschau, 22, 1955, p. 688.
DEL30260A 1958-04-24 1958-04-24 Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture Pending DE1103690B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL30260A DE1103690B (en) 1958-04-24 1958-04-24 Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL30260A DE1103690B (en) 1958-04-24 1958-04-24 Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture

Publications (1)

Publication Number Publication Date
DE1103690B true DE1103690B (en) 1961-03-30

Family

ID=7265163

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL30260A Pending DE1103690B (en) 1958-04-24 1958-04-24 Disk springs for clutches, in particular for motor vehicle clutches, and process for their manufacture

Country Status (1)

Country Link
DE (1) DE1103690B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217703B (en) * 1961-07-18 1966-05-26 Fichtel & Sachs Ag Disk spring for disc friction clutches, especially for motor vehicles
US4162002A (en) * 1976-09-29 1979-07-24 Luk Lammen Und Kupplungsbau Gmbh Friction clutch
US4496137A (en) * 1982-02-10 1985-01-29 Luk Lamellen Und Kupplungsbau Gmbh Diaphragm spring for use in friction clutches and the like
US4541514A (en) * 1982-02-10 1985-09-17 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch and diaphragm spring therefor
US4629047A (en) * 1983-02-11 1986-12-16 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch and air-flow promoting diaphragm spring therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681610C (en) * 1936-07-25 1939-09-27 Zahnradfabrik Friedrichshafen Electromagnetic clutch, especially for gearboxes in motor vehicles
DE943636C (en) * 1953-10-29 1956-05-24 Lamellen Und Kupplungsbau Augu Friction disc clutch, especially for motor vehicles
DE960780C (en) * 1953-11-26 1957-03-28 Opel Adam Ag Guide sleeve mounted in the opening of a housing, in particular in the shaft passage of the housing of a motor vehicle clutch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE681610C (en) * 1936-07-25 1939-09-27 Zahnradfabrik Friedrichshafen Electromagnetic clutch, especially for gearboxes in motor vehicles
DE943636C (en) * 1953-10-29 1956-05-24 Lamellen Und Kupplungsbau Augu Friction disc clutch, especially for motor vehicles
DE960780C (en) * 1953-11-26 1957-03-28 Opel Adam Ag Guide sleeve mounted in the opening of a housing, in particular in the shaft passage of the housing of a motor vehicle clutch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1217703B (en) * 1961-07-18 1966-05-26 Fichtel & Sachs Ag Disk spring for disc friction clutches, especially for motor vehicles
US4162002A (en) * 1976-09-29 1979-07-24 Luk Lammen Und Kupplungsbau Gmbh Friction clutch
US4496137A (en) * 1982-02-10 1985-01-29 Luk Lamellen Und Kupplungsbau Gmbh Diaphragm spring for use in friction clutches and the like
US4541514A (en) * 1982-02-10 1985-09-17 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch and diaphragm spring therefor
US4629047A (en) * 1983-02-11 1986-12-16 Luk Lamellen Und Kupplungsbau Gmbh Friction clutch and air-flow promoting diaphragm spring therefor

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