Clutch device

Patent metadata

Field	Value
Publication number	US-11719286-B2
Application number	US-202217844347-A
Country	US
Kind code	B2
Filing date	Jun 20, 2022
Priority date	Dec 20, 2019
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A clutch device with friction linings includes: a clutch housing, the friction linings including a first friction lining and a second friction lining, the first friction lining being arranged on the clutch housing, the clutch housing including a stop surface; a tapered ring, the second friction lining being arranged on the tapered ring, the plurality of friction linings being arranged relative to one another so that the plurality of friction linings can be brought into full contact with one another in a contact plane, the tapered ring including a reference surface; a spring element; a clutch actuating device, a wear gap being formed between the stop surface and the reference surface, the wear gap configured for becoming wider as the friction linings wear; and a locking element configured for being moved into the wear gap when the wear gap exceeds a definable maximum width.

First claim

What is claimed is:

1. Clutch device with a plurality of friction linings, the clutch device comprising:
a clutch housing configured for being mounted for rotation about a shaft, the plurality of friction linings including a first friction lining and a second friction lining, the first friction lining being arranged on the clutch housing, the clutch housing including a stop surface;
a tapered ring configured for being mounted for rotation about the shaft, the second friction lining being arranged on the tapered ring, the plurality of friction linings being arranged relative to one another so that the plurality of friction linings can be brought into full contact with one another in a contact plane, the tapered ring including a reference surface;
a spring element, by way of which the tapered ring is configured for being moved along the shaft into an engaged position in which the plurality of friction linings are in contact with one another in the contact plane and are held in the engaged position;
a clutch actuating device configured for displacing the tapered ring against a spring force of the spring element into a disengaged position in which the plurality of friction linings are not in contact with each other, a wear gap being formed between the stop surface and the reference surface, the wear gap configured for becoming wider as the plurality of friction linings wear; and
a locking element configured for being moved into the wear gap when the wear gap exceeds a definable maximum width.

2. The clutch device according to claim 1 , wherein the locking element is arranged between the tapered ring and the clutch housing.

3. The clutch device according to claim 1 , further comprising a plurality of the locking element, the tapered ring including a circumference, the plurality of the locking element being distributed over the circumference of the tapered ring.

4. The clutch device according to claim 3 , wherein each respective one of the plurality of the locking element comprises a ball, the tapered ring including a plurality of ball chambers, wherein each ball is assigned a respective one of the plurality of ball chambers in the tapered ring.

5. The clutch device according to claim 1 , wherein the clutch housing includes a first contact surface, the tapered ring including a second contact surface, the wear gap being arranged between the first contact surface and the second contact surface.

6. The clutch device according to claim 5 , wherein the locking element includes a ball, the tapered ring including a ball chamber which has an opening which is configured such that, when the clutch device rotates, the ball is pressed against the first contact surface and the second contact surface by occurring ones of a plurality of centrifugal forces and the ball enters the wear gap if a diameter of the ball is smaller than a width of the wear gap.

7. The clutch device according to claim 1 , wherein the reference surface has a first region in which the reference surface progresses parallel to the stop surface and a second region in which the reference surface progresses at an angle relative to the stop surface.

8. The clutch device according to claim 7 , wherein the tapered ring includes a ball chamber, the first region being arranged radially outside the ball chamber and the second region being arranged at least one of left and right of the first region and the ball chamber, as viewed in an axial direction.

9. The clutch device according to claim 7 , wherein the locking element includes a ball, wherein the second region is configured such that, during a relative torsion of the clutch housing with respect to the tapered ring, the wear gap is increased by the ball so that a force supporting the spring force of the spring element acts on the plurality of friction linings so that the plurality of friction linings are pressed against each other in the contact plane.

10. The clutch device according to claim 1 , wherein the clutch device is configured for switching of at least one ancillary component in a motor vehicle, wherein the at least one ancillary component is a compressor or a retarder.

Assignees

• Voith Patent Gmbh

Inventors

• Pönitz Jonny

Classifications

• F16D13/36 Primary

  in which the clutching pressure is produced by springs only · CPC title

• F16D13/66 Primary

  of conical shape · CPC title

• F16D13/75

  Features relating to adjustment, e.g. slack adjusters · CPC title