DE1480519A1 - Safety friction dome for motor vehicles - Google Patents
Safety friction dome for motor vehiclesInfo
- Publication number
- DE1480519A1 DE1480519A1 DE19611480519 DE1480519A DE1480519A1 DE 1480519 A1 DE1480519 A1 DE 1480519A1 DE 19611480519 DE19611480519 DE 19611480519 DE 1480519 A DE1480519 A DE 1480519A DE 1480519 A1 DE1480519 A1 DE 1480519A1
- Authority
- DE
- Germany
- Prior art keywords
- spring
- clutch
- tension
- friction clutch
- plate spring
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000750 progressive effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/22—Friction clutches with axially-movable clutching members
- F16D13/38—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs
- F16D13/46—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
- F16D13/48—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
- F16D13/50—Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
- F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
- F16D43/213—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces
- F16D43/215—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces with flat friction surfaces, e.g. discs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Description
Sicherheitsreibungskupplung für Kraftfahrzeuge Die Erfindung betrifft eine Weiterbildung und Verbesserung der Sicherheitsreibungskupplung mit Reibscheiben, die mit einer vorgespannten, im degressiven Kennungsbereich wirk- samen Tellerfeder gegeneinander gepreßt sind und einer Spreizvorrichtung, weiche die Federspannung in Abhängig- keit von dem jeweils zur Übertragung anliegenden Drehmoment einstellt, nach Patent Nr. 1 211 874, für Kraftfahrzeuge mit dem Ziel, die Vorteile nach dem genannten Patent auch bei einer fortschreitenden Abnutzung der Reibbeläge auf- recht zu erhalten. Mit zunehmender Abnutzung der Reibbeläge tritt eine unerwünschte Veränderung der Vorspannung der im degressiven Kennungsbereich wirksamen Tellerfeder ein,, welche die Konstanz des Produktes aus Reibbeiwert und Federspannung stört. Safety friction clutch for motor vehicles The invention relates to a further development and improvement of the safety friction clutch with friction disks which are pressed against one another with a pre-tensioned cup spring that is effective in the degressive identification range and a spreading device which adjusts the spring tension as a function of the torque applied in each case for transmission , according to patent no. 1 211 874, for motor vehicles with the aim of maintaining the advantages according to the patent mentioned even with progressive wear of the friction linings . With increasing wear of the friction linings , there is an undesirable change in the preload of the disc spring, which is effective in the degressive identification area , which disturbs the constancy of the product of the coefficient of friction and spring tension.
Nach der vorliegenden Zusatzerfindung wird dem dadurch begegnet, daß bei der Sicherheitsreibungskupplung für Kraftfahrzeuge der eingangs erwähnten Art nach dem Hauptpatent die infolge des Kupplungsverschleisses ver- änderte Spannung der Tellerfeder durch eine zusätzliche Feder bzw. Federgruppe korrigiert wird. According to the present additional invention, this is countered by the fact that in the safety friction clutch for motor vehicles of the type mentioned in the main patent, the tension of the disc spring changed as a result of clutch wear is corrected by an additional spring or group of springs.
Zu diesem Zweck ist bei einer bevorzugten Ausführungs-For this purpose, in a preferred embodiment form der Erfindung neben der Tellerfeder eine zweiteshape the invention in addition to the plate spring a second Feder angebracht, welche mit fortschreitender Belag-Feather attached, which with progressive coating abnutzung eine wachsende Gegenkraft zur Tellerfederwear a growing counterforce to the disc spring liefert.supplies.
Bei einem anderen Ausführungsbeispiel der Erfindung be- steht die zusätzliche Feder aus einer Federgruppe, die bei neuen Kupplungsbelägen zusätzlich zur Kraft der Tellerfeder eine Höchstspannung liefert, welche sich mit fortschreitender Abnutzung des Reibbelages abbaut. In weiterer Ausgestaltung des Erfindungsgedankens werden bei einer Sieherheitsreibungskupplung mit zwei konzentrisch zur Kupplungsnabe angeordneten Ringen, welche an ihren einander zugekehrten Stirnflächen mit Vertiefungen versehen sindg in denen Kugeln ruhen, die Kugeln durch die Vorspannung der Tellerfeder belastet. In another exemplary embodiment of the invention , the additional spring consists of a group of springs which, in the case of new clutch linings, delivers a maximum tension in addition to the force of the plate spring, which is reduced as the friction lining becomes more and more worn. In a further embodiment of the inventive concept, in a safety friction clutch with two rings arranged concentrically to the clutch hub, which are provided with depressions on their facing end faces in which balls rest, the balls are loaded by the bias of the plate spring.
Nach einem weiteren Merkmal der Zusatzerfindung ist auf einem Haltering an dem Kupplungskorb eine zusätzliche Tellerfeder angebrachte deren Spannung mit Hilfe von Regelmuttern verstellt werden kann.According to a further feature of the additional invention is on a retaining ring an additional disc spring attached to the clutch basket with its tension Can be adjusted using regulating nuts.
Nach einem anderen Merkmal der Zusatzerfindung trägt der Kupplungskorb in symmetrisch angeordneten Vertiefungen drehfest eingelegte Muttern, an denen über Stellschrauben Federteller schwenkbar abgestützt sind, Die Sicherheitsreibungskupplung für Kraftfahrzeuge nach der Zusatzerfindung erhält auch mit fortschreitender Abnutzung der Kupplung die Konstanz des Produktes aus Reibbeiwert und Federspannung unabhängig von einem schwankenden Reibbeiwert aufrecht. Solche Kupplungen können daher auch längere Zeit ohne Überholung benutzt werden. Figur 1 zeigt in Seitenansicht geschnitten ein Ausführungsbeispiel.According to another feature of the additional invention, the clutch basket carries in symmetrically arranged recesses rotatably inserted nuts, on which over Adjusting screws spring plate are pivotably supported, the safety friction clutch for motor vehicles according to the additional invention is also given with progressive wear and tear of the clutch, the constancy of the product of the coefficient of friction and spring tension is independent by a fluctuating coefficient of friction. Such couplings can therefore also be used for a long time without overhaul. Figure 1 shows a side view in section an embodiment.
Figur 2 zeigt einen Teilschnitt in der Ebene A-B aus Figur 1.FIG. 2 shows a partial section in the plane A-B from FIG.
Figur 3 zeigt ein anderes Ausführungsbeispiel der Kupplung. Mit dem
nabenförmigen Kupplungsteil (1) ist die Kupplungsscheibe (2) fest verbunden. Dieselbe
wird zwischen einem Druckring (3) und einer Planfläche (4) im Gehäuse (5) durch
die Spannung einer Tellerfeder(6) eingepreßt. Der Druck-
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW0030759 | 1961-09-26 | ||
DEW0030759 | 1961-09-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1480519A1 true DE1480519A1 (en) | 1970-08-06 |
DE1480519C DE1480519C (en) | 1973-07-12 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1625849A1 (en) * | 1967-12-01 | 1970-08-20 | Zahnradfabrik Friedrichshafen | Friction clutch, especially for boat gears |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1625849A1 (en) * | 1967-12-01 | 1970-08-20 | Zahnradfabrik Friedrichshafen | Friction clutch, especially for boat gears |
Also Published As
Publication number | Publication date |
---|---|
GB940011A (en) | 1963-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 | ||
C3 | Grant after two publication steps (3rd publication) | ||
EGZ | Application of addition ceased through non-payment of annual fee of main patent |