Two-stage clutch

Patent metadata

Field	Value
Publication number	US-10006500-B2
Application number	US-201414889687-A
Country	US
Kind code	B2
Filing date	May 6, 2014
Priority date	May 6, 2013
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

A two-stage clutch for separable connection of an input shaft to at least one output shaft, having a clutch cover, a clutch basket and a plurality of partial clutches, the partial clutches being operated in series. A first partial clutch is a pilot clutch, which is actively operable. A second partial clutch is a main clutch, which is operable by the pilot clutch, an operating force for the main clutch being produced by a torque transmitted by a shaft. In this two-stage clutch, the clutch cover is firmly connectible to the clutch basket. With the two-stage clutch proposed here, high torques can be transmitted despite small external operating forces. At the same time, the construction and assembly are greatly simplified in spite of the considerable complexity of the two-stage clutch, and the two-stage clutch has a significantly reduced rotating mass.

First claim

The invention claimed is:

1. A two-stage clutch for separable connection of an input shaft to at least one output shaft, comprising:
a clutch cover;
a clutch basket connected to the clutch cover;
a plurality of partial clutches arranged in series, the plurality of partial clutches including:
a first partial clutch including a pilot clutch which is actively operable; and,
a second partial clutch including a main clutch which is operable by:
the pilot clutch; and,
an operating force for the main clutch being produced by a torque transmitted by the input shaft or the at least one output shaft; and,

a torque sensor connecting the main clutch to the output shaft.

2. The two-stage clutch according to claim 1 , wherein a modulating spring is arranged between the clutch basket and a plate carrier of the main clutch to modulate a transmission of power when operating one of the first or second partial clutches.

3. The two-stage clutch according to claim 1 , wherein the two-stage clutch is a wet friction clutch.

4. The two-stage clutch according to claim 3 , wherein a liquid coolant can be brought into the main clutch from a hollow shaft through at least one window in a transmitting element between the pilot clutch and the main clutch.

5. The two-stage clutch according to claim 1 , wherein the clutch basket is fabricated by cold rolling.

6. The two-stage clutch according to claim 5 , wherein the clutch basket is fabricated with a reduced mass.

7. The two-stage clutch according to claim 5 , wherein the clutch cover is connectible and fixable on the clutch basket by means of a bayonet lock.

8. The two-stage clutch according to claim 7 , further comprising a plurality of openings in a disk of the pilot clutch which correspond to at least one pin on the main clutch.

9. The two-stage clutch according to claim 1 , wherein the pilot clutch can be operated by pulling by means of a diaphragm spring.

10. The two-stage clutch according to claim 9 , wherein the pilot clutch forms a separate component.

11. The two-stage clutch according to claim 9 , wherein a transmitting element can be centered between a first ramp element and the main clutch by means of the diaphragm spring.

12. The two-stage clutch according to claim 9 , wherein a clamping force that is produced is absorbed in the clutch basket.

13. The two-stage clutch according to claim 12 , wherein the torque sensor is not detachable from a ramp system without destruction.

14. A motorcycle comprising a drive unit with a second output shaft, a drivetrain, and the two-stage clutch according to claim 1 to connect the second output shaft to the drivetrain separably.

15. The motorcycle according to claim 14 , wherein the two stage clutch is operable by hand.

16. A two-stage clutch for separable connection of an input shaft to at least one output shaft, comprising:
a clutch cover;
a clutch basket connected to the clutch cover;
a plurality of partial clutches arranged in series, the plurality of partial clutches including:
a first partial clutch including a pilot clutch which is actively operable; and,
a second partial clutch including a main clutch which is operable by:
the pilot clutch; and,
an operating force for the main clutch being produced by a torque transmitted by the input shaft or the at least one output shaft;

wherein the pilot clutch comprises a disk including a plurality of openings that correspond to at least one pin on the main clutch.

17. A two-stage clutch for separable connection of an input shaft to at least one output shaft, comprising:
a clutch cover;
a clutch basket connected to the clutch cover;
a plurality of partial clutches arranged in series, the plurality of partial clutches including:
a first partial clutch including a pilot clutch which is actively operable; and,
a second partial clutch including a main clutch which is operable by:
the pilot clutch; and,
an operating force for the main clutch being produced by a torque transmitted by the input shaft or the at least one output shaft; and,

a torque sensor that is not detachable from a ramp system without destruction.

Assignees

• Schaeffler Technologies Ag

Inventors

• Chambrion Martin
• Raber Christoph

Classifications

• F16D13/72

  Features relating to cooling · CPC title

• F16D13/40

  in which the or each axially-movable member is pressed exclusively against an axially-located member · CPC title

• F16D2300/26

  Cover or bell housings; Details or arrangements thereof · CPC title

• F16D21/08 Primary

  Serially-arranged clutches interconnecting two shafts only when all the clutches are engaged (F16D13/08, F16D13/12 take precedence) · CPC title

• F16D13/583

  Diaphragm-springs, e.g. Belleville (co-operation with a disengaging thrust ring or bearing F16D23/14) · CPC title