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Title:
BEARING VIBRATION DAMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172328
Kind Code:
A1
Abstract:
The present invention addresses the problem of preventing an external flow of worn powder from an accommodating space filled with spherical particles in a vibration damping device using the spherical particles as a damper element. This bearing vibration damping device is characterized by: an inner cylinder (4) that can be displaced in a radial direction with respect to an apparatus housing (3); and anti-powder dust seals (12a)(12b) which, in order to prevent a flow of worn powder from an accommodating space (7) provided between an outer peripheral surface of the inner cylinder (4) and an inner peripheral surface of the apparatus housing (3) and filled with spherical particles (6) for producing an anti-vibration action using vibrational friction, are disposed on both sides in an axial direction of the accommodating space (7) filled with the spherical particles (6).

Inventors:
NAKAMURA TOMOYA (JP)
HAYASHI NAO (JP)
KAWASAKI SATOSHI (JP)
SHIMAGAKI MITSURU (JP)
Application Number:
JP2019/008919
Publication Date:
September 12, 2019
Filing Date:
March 06, 2019
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
JAPAN AEROSPACE EXPLORATION (JP)
International Classes:
F16C27/06; F04D29/046; F16F7/01; F16F7/04; F16F15/10; F16F15/12; F16J15/06
Foreign References:
JP2005098410A2005-04-14
JPH0341211A1991-02-21
DE102008040508A12010-01-21
Attorney, Agent or Firm:
TORII Kazuhisa et al. (JP)
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