Title:
BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/195563
Kind Code:
A1
Abstract:
A bearing device (30) is provided with bearings (5a, 5b), a spacer (6), a nozzle (70), and heat flow sensors (11a, 11b). The bearing (5a) includes an inner ring (5ia) and an outer ring (5ga). The bearing (5b) includes an inner ring (5ib) and an outer ring (5gb). The spacer (6) includes an inner ring spacer (6i) adjacent to the inner rings (5ia, 5ib) and an outer ring spacer (6g) adjacent to the outer rings (5ga, 5gb). The nozzle (70) is provided to the outer ring spacer (6g), and discharges cooling air toward the inner ring spacer (6i). The heat flow sensors (11a, 11b) are disposed in the inner diameter surface (6gA) of the outer ring spacer (6g). Output from the heat flow sensors (11a, 11b) is used for adjusting the flow rate of the cooling air to be discharged from the nozzle (70).
Inventors:
HASHIZUME SHOHEI (JP)
NASU KEISUKE (JP)
NASU KEISUKE (JP)
Application Number:
PCT/JP2020/008594
Publication Date:
October 01, 2020
Filing Date:
March 02, 2020
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C37/00; F16C19/16; F16C19/52; F16C19/54; F16C41/00; B23B19/02; B23Q11/12; B23Q17/00
Foreign References:
| JP2018076923A | 2018-05-17 | |||
| JP2017187451A | 2017-10-12 | |||
| JP2017090318A | 2017-05-25 | |||
| JP2017187450A | 2017-10-12 | |||
| JP2017026078A | 2017-02-02 |
Other References:
See also references of EP 3951200A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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