Back to results
US 2021/0356011 A1Published application
Elastic joints having a torsion stop and use of such joints in vibration absorbers
AssigneeFM Energie GmbH & Co. KG
InventorFranz MITSCH
Life of this patent
Estimating the term…
Abstract
Novel elastic torsion stop components based on multilayer elastomer metal elements in cylindrical, conical, or spherical shape. The elastic torsion stop components are particularly suitable for use as maintenance-free and low-wear joints having a large angular spread, for example in vibration absorbers, such as in pendulum vibration absorbers for wind turbines.
Claims25
1-20. (canceled)
An elastic torsion joint which is capable of providing multi-stage deflection angles of at least 50° deflection, the elastic torsion joint comprising:
- an elastic layer element (1, 2) which can move around an inner fixed joint axle or around an inner fixed joint ball and which is composed of a plurality of elastic concentric layers that are separated from one another by intermediate sheets,
- wherein the joint axle (1.14) or the joint ball (2.7) is rigidly connected to the innermost elastic layer of the layer element such that, when the layer element moves relative to the inner fixed joint axle or the inner fixed joint ball, said innermost elastic layer is deformed the most of all the layers, and the joint axle or the joint ball is functionally operatively connected to a torsion stop (1.4, 2.4, 6.4) at at least one position of the layer element,
- the torsion stop and the layer element being designed such that, during rotational movement of the layer element and joint axle relative to one another or during a cardanic movement of the layer element and joint ball (2.7) relative to one another by a defined deflection angle (1.5, 2.20), the torsion stop strikes against the innermost intermediate sheet of the layer element (1, 2) that is closest to the joint axle or the joint ball such that, after the stop strikes against the sheet, the adjacent inner elastic sheet does not undergo any further deformation.
Dependencies are inferred from the claim text.