Centrifugal force pendulum

Patent metadata

Field	Value
Publication number	US-10107358-B2
Application number	US-201415111120-A
Country	US
Kind code	B2
Filing date	Dec 15, 2014
Priority date	Jan 28, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

A centrifugal pendulum for a drivetrain of a motor vehicle, which is mountable rotatably around an axis of rotation, having a pendulum mass, a first sliding block guide and a pendulum flange, where the pendulum mass includes a first pendulum mass part, where the first pendulum mass part is coupled with the pendulum flange via the first sliding block guide, where the first sliding block guide is designed to guide the first pendulum mass part along an oscillation path in an oscillating motion, where the pendulum mass has an additional pendulum mass part and a coupling, where the additional pendulum mass part is coupled with the first pendulum mass part by the coupling so that it is movable at least in the radial direction relative to the pendulum mass part.

First claim

What is claimed is:

1. A centrifugal pendulum for a drivetrain of a motor vehicle, the centrifugal pendulum mountable rotatably around an axis of rotation, and comprising:
a pendulum mass;
a first sliding block guide; and
a pendulum flange,
the pendulum mass including a first pendulum mass part on a first axial side of the pendulum flange and a second pendulum mass part on a second axial side of the pendulum flange, the first pendulum mass part and the second pendulum mass part being coupled with the pendulum flange by the first sliding block guide, the first sliding block guide configured for guiding the first pendulum mass part and the second pendulum mass part in an oscillating motion along a path of oscillation, the pendulum mass having an additional pendulum mass part and a coupling,
the additional pendulum mass part coupled with the first pendulum mass part and the second pendulum mass part by the coupling so that the additional pendulum mass part is movable at least in a radial direction relative to the first pendulum mass part and the second pendulum mass part, the additional pendulum mass part being axially between the first pendulum mass part and the second pendulum mass part, the additional pendulum mass part being coupled to the pendulum flange by the first pendulum mass part and the second pendulum mass part.

2. The centrifugal pendulum as recited in claim 1 wherein the coupling means has a second sliding block guide including a cutout and a guide, wherein the cutout is located in the additional pendulum mass part and the guide is coupled with the first pendulum mass part, or the cutout is located in the first pendulum mass part and the guide is coupled with the additional pendulum mass part, wherein the guide engages the cutout and couples the additional pendulum mass part with the first pendulum mass part.

3. The centrifugal pendulum as recited in claim 2 wherein the cutout extends at least partially in the radial direction.

4. The centrifugal pendulum as recited in claim 3 wherein the cutout extends in a straight line from radially inside to radially outside.

5. The centrifugal pendulum as recited in claim 2 wherein the coupling includes a first clamping element, the first clamping element positioned at least partially between the guide and a cutout contour of the cutout and tightens the additional pendulum mass part relative to the guide.

6. The centrifugal pendulum as recited in claim 5 wherein the first clamping element has a first longitudinal end in contact with a longitudinal end of the cutout and a second longitudinal end in contact with the guide.

7. The centrifugal pendulum as recited in claim 6 wherein the first clamping element is positioned to an inside of the guide.

8. The centrifugal pendulum as recited in claim 2 wherein the guide of the second sliding block guide includes a section of a connecting pin and a guide element, the connecting pin connected to the additional pendulum mass part or to the first pendulum mass part, the guide element having a receptacle engaged by the connecting pin, the cutout having a cutout contour, the guide element having on an outer surface at least one guide surface facing the cutout contour, the guide surface at least partially in contact with the cutout contour, in order to guide the connecting pin in the cutout.

9. The centrifugal pendulum as recited in claim 8 wherein the receptacle is of rectilinear design or extends tangentially relative to the axis of rotation.

10. The centrifugal pendulum as recited in claim 8 wherein a second clamping element is provided in the receptacle, the second clamping element being braced on the receptacle by a first longitudinal end and braced on the connecting pin by a second longitudinal end, the second clamping element being configured for tightening the guide element on the connecting pin.

11. The centrifugal pendulum as recited in claim 1 wherein the additional pendulum mass part being at least partially ring-shaped in a circumferential direction.

12. The centrifugal pendulum as recited in claim 1 wherein the pendulum flange includes a first and a second pendulum flange part, the first pendulum flange part and the second pendulum flange part running essentially parallel radially outward, adjoining the pendulum mass, the additional pendulum mass part being positioned axially between the first pendulum flange part and the second pendulum flange part.

13. The centrifugal pendulum as recited in claim 1 wherein the coupling has a second sliding block guide including a cutout formed in the additional pendulum mass part and a guide received in the cutout, the cutout being radially wider than the guide such that the guide is radially movable within the cutout.

14. The centrifugal pendulum as recited in claim 1 wherein an inner circumferential surface of the additional pendulum mass part is radially outside of an outer circumferential surface of the pendulum flange.

15. A centrifugal pendulum for a drivetrain of a motor vehicle, the centrifugal pendulum mountable rotatably around an axis of rotation, and comprising:
a pendulum mass;
a first sliding block guide; and
a pendulum flange,
the pendulum mass including a first pendulum mass part coupled with the pendulum flange by the first sliding block guide, the first sliding block guide configured for guiding the first pendulum mass part in an oscillating motion along a path of oscillation, the pendulum mass having an additional pendulum mass part and a coupling,
the additional pendulum mass part coupled with the first pendulum mass part by the coupling so that the additional pendulum mass part is movable at least in a radial direction relative to the first pendulum mass part,
wherein the coupling has a second sliding block guide including a cutout and a guide, where the cutout is located in the additional pendulum mass part and the guide is coupled with the first pendulum mass part, or the cutout is located in the first pendulum mass part and the guide is coupled with the additional pendulum mass part, wherein the guide engages the cutout and couples the additional pendulum mass part with the first pendulum mass part,
wherein the coupling includes a first clamping element, the first clamping element positioned at least partially between the guide and a cutout contour of the cutout and tightens the additional pendulum mass part relative to the guide.

16. The centrifugal pendulum as recited in claim 15 wherein the first clamping element has a first longitudinal end in contact with a longitudinal end of the cutout and a second longitudinal end in contact with the guide.

17. The centrifugal pendulum as recited in claim 16 wherein the first clamping element is positioned to an inside of the guide.

18. A centrifugal pendulum for a drivetrain of a motor vehicle, the centrifugal pendulum mountable rotatably around an axis of rotation, and comprising:
a pendulum mass;
a first sliding block guide; and
a pendulum flange,
the pendulum mass including a first pendulum mass part coupled with the pendulum flange by the first sliding block guide, the first sliding block guide configured for guiding the first pendulum mass part in an oscillating motion along a path of oscillation, the pendulum mass having an additional pendulum mass part and a coupling,
the additional pendulum mass part coupled with the first pendulum mass part by the coupling so that the additional pendulum mass part is movable at least in a radial direction relative to the first pendulum mass part,
wherein the coupling has a second sliding block

Assignees

• Schaeffler Technologies Ag

Inventors

• Dinger Christian

Classifications

• F16F15/145 Primary

  Masses mounted with play with respect to driving means thus enabling free movement over a limited range · CPC title