Torsional vibration damper with friction element

By optimizing the connection and alignment design between the friction element and the cover element, a low-cost, simple-to-install, and highly efficient vibration damping device for torsional vibration has been achieved. This solves the problems of complex installation and easy damage to the friction element in the existing technology, and improves the protection and vibration damping effect of the friction element.

CN116892590BActive Publication Date: 2026-06-09SCHAEFFLER TECHNOLOGIES AG & CO KG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SCHAEFFLER TECHNOLOGIES AG & CO KG
Filing Date
2023-03-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing torsional vibration dampers have problems such as high cost and large space occupation during installation and manufacturing, and the friction elements are susceptible to overload and wear.

Method used

A torsional vibration damper with a friction element that can rotate relative to a cover element was designed. By optimizing the connection and centering of the friction element and the cover element, the installation is simplified and the load on the friction area is reduced. A diaphragm spring is used as the axial spring element to achieve precise orientation and rotational accommodation of the friction element.

Benefits of technology

It achieves lower cost and simpler installation and manufacturing, reduces the risk of wear on friction elements, lowers the load on the friction area, and improves the efficiency of torsional vibration dampers.

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Abstract

The invention relates to a torsional vibration damper (10) for reducing torsional vibrations, having a damper input (16) which can be rotated about an axis of rotation (14), having a cover element (20) which comprises a cover inner circumference (62), a damper output (30) which can be rotated relative to the damper input (16) against the action of at least one spring element (26), a friction element (54) which is arranged between the damper output (30) and the damper input (16), which at least partially surrounds the cover inner circumference (62) in the circumferential direction and is axially clamped on the cover element (20), an axial spring element (56) which exerts a force on the friction element (54) in the axial direction and can be rotated relative thereto, wherein the friction element (54) is rotatably received relative to the cover element (20).
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