Centrifugal pendulum

Patent metadata

Field	Value
Publication number	US-10393222-B2
Application number	US-201515300689-A
Country	US
Kind code	B2
Filing date	Mar 31, 2015
Priority date	Apr 1, 2014
Publication date	Aug 27, 2019
Grant date	Aug 27, 2019

Abstract

A centrifugal pendulum having a pendulum flange, a first pendulum mass and a second pendulum mass and a spring arrangement, wherein the first pendulum mass and the second pendulum mass are positioned side-by-side in the circumferential direction, wherein the first pendulum mass is coupled with the pendulum flange by a first slotted guide and the second pendulum mass is coupled with the pendulum flange by a second slotted guide. The first slotted guide guides the first pendulum mass along a first oscillation path and the second slotted guide guides the second pendulum mass along a second oscillation path in an oscillating motion. The spring arrangement at least partially couples the first pendulum mass with the second pendulum mass, wherein at least one of the two pendulum masses has a receptacle. The spring arrangement includes a spring element and a protective device, wherein the protective device is positioned at least partially in the receptacle of the pendulum mass.

First claim

What is claimed is:

1. A centrifugal pendulum mountable rotatably around an axis of rotation and comprising:
a pendulum flange;
a first pendulum mass;
a second pendulum mass; and
a spring arrangement, the first pendulum mass and the second pendulum mass being positioned side-by-side in a circumferential direction, the first pendulum mass being coupled with the pendulum flange by a first slotted guide, and the second pendulum mass being coupled with the pendulum flange by a second slotted guide, the first slotted guide being designed to guide the first pendulum mass along a first oscillation path in an oscillating motion, and the second slotted guide being designed to guide the second pendulum mass along a second oscillation path in a second oscillating motion, the spring arrangement being positioned between the first and second pendulum masses in the circumferential direction, and coupling the first pendulum mass at least partially with the second pendulum mass, at least one of the first and second pendulum masses having a receptacle, the spring arrangement including at least one spring element and one protective device, the protective device being positioned at least partially in the receptacle and being separate piece from the first and second pendulum masses, the protective device separating the spring element from a floor of the receptacle.

2. The centrifugal pendulum as recited in claim 1 wherein at least one of the first and second pendulum masses includes a fastening segment extending at least partially in the circumferential direction, the protective device being designed at least partially in the form of a hollow body, the spring element at least partially surrounding the protective device circumferentially, and the protective device at least partially surrounding the fastening segment with an inner circumferential surface.

3. The centrifugal pendulum as recited in claim 2 wherein the protective device is connected positively or frictionally by the inner circumferential surface to the fastening segment.

4. The centrifugal pendulum as recited in claim 1 wherein the protective device includes a first segment and a second segment, the first segment reaching into the receptacle and providing a connection of the protective device to the receptacle, the second segment being designed at least partially in the form of a peg.

5. The centrifugal pendulum as recited in claim 4 wherein the first segment has an eyelet, the protective device has a pin and a recess is positioned in the first or second pendulum mass corresponding to the pin, the pin extending through the recess and the eyelet and connecting the protective device to the first or second pendulum mass by a positive lock.

6. The centrifugal pendulum as recited in claim 5 wherein the recess is aligned parallel to the axis of rotation.

7. The centrifugal pendulum as recited in claim 4 wherein the protective device includes a first protective element and a second protective element, wherein the first protective element has the first segment and the second segment, and wherein the second protective element is at least partially in the form of a hollow body and surrounds the second segment of the first protective element circumferentially.

8. The centrifugal pendulum as recited in claim 4 wherein the protective device includes a third segment, wherein the second segment is positioned between the first segment and the third segment in the circumferential direction, wherein the first pendulum mass includes the receptacle and the second pendulum mass includes a different receptacle positioned opposite the first pendulum mass in the circumferential direction, wherein the protective device reaches with the first segment into the receptacle and is connected to the receptacle by a positive or frictional connection, wherein the spring element surrounds the second segment circumferentially, wherein the third segment reaches into the different receptacle with free play, and is designed to enable a relative movement of the different receptacle to the third segment.

9. The centrifugal pendulum as recited in claim 1 wherein the protective device includes a transverse segment extending at least partially in a radial direction.

10. The centrifugal pendulum as recited in claim 9 wherein the transverse segment is positioned between spring element and at least one of the first and second pendulum masses in the circumferential direction.

11. The centrifugal pendulum as recited in claim 9 wherein the receptacle has a recess designed corresponding to the transverse segment and at least partially receives the transverse segment.

12. The centrifugal pendulum as recited in claim 1 wherein at least one of the first and second pendulum masses, to delimit the receptacle, has at least one bracing element positioned radially to the outside of the spring element, the bracing element having an inside surface, wherein the inside surface is positioned tangentially to an outer circumferential surface of the spring element.

13. The centrifugal pendulum as recited in claim 1 wherein the spring element at least partially surrounds the protective device circumferentially or the protective device surrounds the spring element circumferentially.

14. The centrifugal pendulum as recited in claim 1 wherein the protective device has a transverse segment positioned transversely to a longitudinal axis of the spring element.

15. The centrifugal pendulum as recited in claim 14 wherein the transverse segment is positioned between the floor of the receptacle and a longitudinal end of the spring element.

16. The centrifugal pendulum as recited in claim 1 wherein at least one of the first and second pendulum masses includes a fastening segment fixed directly to a first segment of the protective device, the protective device including a second segment separating the spring element from a floor of the receptacle.

17. The centrifugal pendulum as recited in claim 16 wherein the first segment extends inside of the spring element axially with respect to a longitudinal axis of the spring element.

18. The centrifugal pendulum as recited in claim 16 wherein the second segment extends radially outward from the first segment.

19. The centrifugal pendulum as recited in claim 16 wherein the fastening segment is received inside the protective device.

20. A centrifugal pendulum mountable rotatably around an axis of rotation and comprising:
a pendulum flange;
a first pendulum mass;
a second pendulum mass; and
a spring arrangement, the first pendulum mass and the second pendulum mass being positioned side-by-side in a circumferential direction, the first pendulum mass being coupled with the pendulum flange by a first slotted guide, and the second pendulum mass being coupled with the pendulum flange by a second slotted guide, the first slotted guide being designed to guide the first pendulum mass along a first oscillation path in an oscillating motion, and the second slotted guide being designed to guide the second pendulum mass along a second oscillation path in a second oscillating motion, the spring arrangement being positioned between the first and second pendulum masses in the circumferential direction, and coupling the first pendulum mass at least partially with the second pendulum mass, at least one of the first and second pendulum masses having a receptacle, the spring arrangement including at least one spring element and one protective device, the protective device being positioned at least partially in the receptacle,

Assignees

• Schaeffler Technologies Ag

Inventors

• Dinger Christian
• Hoffmann Jan

Classifications

• F16F15/145 Primary

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

• F16F15/1414

  Masses driven by elastic elements (F16F15/145, F16F15/1464 take precedence) · CPC title