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Patent Searching and Data


Title:
ROLLING BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/030559
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a rolling bearing device (10) for stabilizing a supplementary supply of lubricating oil to a rolling bearing (11) over a long period. The rolling bearing device is provided with, in the interior of the rolling bearing (11) or in a spacer adjacent to the rolling bearing, an oil supply unit comprising a lubricating oil tank (46) having a lubricating oil discharge port, a pump (45) for drawing the lubricating oil from the lubricating oil tank (46) and discharging the lubricating oil, and a power unit for driving the pump (45), and the pump is driven intermittently. The power unit for driving the pump (45) comprises a power generator (41) for generating power from the temperature difference between the inner and outer rings of the rolling bearing (11), and a charging unit (42) for storing the electrical power of the power generator (41). The pump (45) is driven when the voltage of the charging unit (42) reaches the driving voltage of the pump (45).

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Inventors:
ITO Hiroyoshi (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
OOMOTO Kaoru (3066 Aza Oyumida, Oaza Higashikata, Kuwana-sh, Mie 11, 〒5110811, JP)
Application Number:
JP2013/071759
Publication Date:
February 27, 2014
Filing Date:
August 12, 2013
Export Citation:
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Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
F16C33/66; F16N7/32
Foreign References:
JP2004108388A2004-04-08
JP2002257294A2002-09-11
JP2005090713A2005-04-07
JP2012102803A2012-05-31
JP2004108388A2004-04-08
JP2005180629A2005-07-07
Other References:
See also references of EP 2886893A4
Attorney, Agent or Firm:
TORII Kazuhisa et al. (PATRIO Patent Office, Hommachi Takeda Building 1-29, Kyutaro-machi 3-chome, Chuo-Ku, Osaka-sh, Osaka 56, 〒5410056, JP)
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