MOVABLE ELEMENT, DAMPING SYSTEM AND METHOD FOR IMPLEMENTING A MOVABLE ELEMENT

• US 20160312848A1
• Filed: 11/28/2014
• Published: 10/27/2016
• Est. Priority Date: 12/05/2013
• Status: Active Application

• Current Assignee: Seco EPB
• Original Assignee: Seco EPB
• Inventors: FREYERMUTH, Alain, OSTERMANN, Mathieu, GROLL, Yannick, KRUMHORN, Pascal
• Application Number:
  US15/101,471
• Publication Number:
  US 20160312848A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B23Q 11/0035 by adding or adjusting a mass, e.g. counterweights
• CPC Class Codes: F16F 7/1028 the inertia-producing means being a constituent part of the system which is to be damped
• CPC Class Codes: F16F 7/108 on plastics springs

Abstract

A movable element for a damping system includes an absorbent mass arranged to be positioned in a housing. At least two damping assemblies are positioned respectively against the surface of the absorbent mass and bearing against the internal wall of the housing at different parts of the absorbent mass. The movable element is arranged to function with a phase shift and/or shift of displacement amplitude between the oscillations of each part of the absorbent mass in each of the damping assemblies during the operation of the movable element, by generating damping effects and/or having different rigidity for each of the damping assemblies. The present disclosure further relates to damping system and method for implementing a movable element.

Claims

1. A movable element for a damping system comprising:

an absorbant mass disposed in a housing of the damping system, the housing having an internal wall;

at least two damping assembles, each of the damping assemblies being positioned respectively against a surface of the absorbent mass and arranged to bear against the internal wall of the housing at different parts of the absorbent mass, wherein the movable element is arranged to function with a phase shift and/or shift of displacement amplitude between the oscillations of each part of the absorbent mass in each of the damping assemblies during operation of the movable element, by generating damping effects and/or having different rigidity for each of the damping assemblies.

2. The movable element according to claim 1, wherein each of the damping assemblies positioned in each part of the absorbent mass have different damping properties and/or rigidity.

3. The movable element according to claim 1, wherein each of the damping assemblies are formed by a different number of one or more elastic elements held in position between the absorbent mass and internal wall of the housing.

4. The movable element according to claim 3, wherein the elastic elements are positioned in annular grooves arranged at least radially on the periphery of the absorbent mass.

5. The movable element according to claim 3, wherein each of the elastic elements of the damping assemblies have different hardness values.

6. The movable element according to claim 3, wherein each of the elastic elements of the damping assemblies have sections with different diameters.

7. The movable element according to claim 1, wherein the absorbent mass has a different distribution of mass at the respective damping assemblies.

8. The movable element according to claim 7, wherein within the absorbent mass there is a variation in the distribution of mass by having a different density in each of the respective parts of the absorbent mass in contact with a respective damping assembly.

9. The movable element according to claim 7, wherein within the absorbent mass there is a variation in the distribution of mass by having different volumes in each of the respective parts of the absorbent mass in contact with a respective damping assembly.

10. A damping system comprising:

a housing having an internal wall;

at least one movable element disposed in the housing, the at least one movable element including an absorbent mass and a plurality of damping assemblies, each of the damping assemblies being positioned respectively against a surface of the absorbent mass and bearing against the internal wall of the housing at different parts of the absorbent mass, wherein the movable element is arranged to function with a phase shift and/or shift of displacement amplitude between the oscillations of each part of the absorbent mass in each of the damping assemblies during operation of the movable element, by generating damping effects and/or having different rigidity for each of the damping assemblies.

11. The damping system, according to claim 10, wherein the housing is connected to a cutting or drilling apparatus or a cutting or drilling tool.

12. A method for implementing a movable element in a damping system for a vibration damping operation, the method comprising:

providing at least one movable element, the movable element being disposed in a housing of the damping system, the at least one movable element including an absorbent mass and a plurality of damping assemblies, each of the damping assemblies being positioned respectively against a surface of the absorbent mass and bearing against the internal wall of the housing at different parts of the absorbent mass; and

generating a phase shift and/or shift of displacement amplitude between each part of the absorbent mass during an oscillating displacement of the absorbent mass relative to the housing, wherein the movable element is arranged to function with the generated phase shift and/or shift of displacement amplitude between the oscillations of each part of the absorbent mass in each of the damping assemblies during operation of the movable element, by generating damping effects and/or having different rigidity for each of the damping assemblies.