BEARING ABNORMALITY DETECTION DEVICE FOR RAILWAY VEHICLE

WIPO Patent Application WO/2015/137219

A1

In the present invention, a bearing abnormality detection device for a railway vehicle detects abnormalities in a plurality of roller bearings incorporated in a journal box (3), and comprises: a plurality of vibration detection devices (15) that detect the operational states of the roller bearings as vibration data; and an analysis device that assesses abnormalities in the roller bearings on the basis of the vibration data detected by these vibration detection devices (15). The bearing abnormality detection device further comprises: a lead measurement start command means that causes the vibration detection device (15) disposed in the vicinity of the wheels of the lead car to start detection of vibration data in response to measurement start input; and a subsequent measurement start command means that, after the measurement start input is input into the lead measurement start command means, causes the vibration detection devices (15) disposed in the vicinity of subsequent wheels to sequentially start the detection of vibration data following a set delay period.

JP3319489	METHOD FOR EVALUATING LIFE OF BEARING BALL
JP2007212432	RESIDUAL RADIAL INTERNAL CLEARANCE ADJUSTABLE GAUGE
JPH0658298	INDUSTRIAL APPLICABILITY: Bearing abnormality diagnostic device

ITO HIROYOSHI (JP)
TOMINAGA MASAYA (JP)

PCT/JP2015/056453

September 17, 2015

March 05, 2015

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NTN TOYO BEARING CO LTD (JP)
ITO HIROYOSHI (JP)
TOMINAGA MASAYA (JP)

G01M13/04; F16C19/52; F16C41/00; G01H17/00

JPH02310464A	1990-12-26
JP2006194629A	2006-07-27
JP2005114637A	2005-04-28
JP2000006807A	2000-01-11
JP2006275954A	2006-10-12
US5150618A	1992-09-29

SUGIMOTO, Shuji et al. (JP)
Shuji Sugimoto (JP)

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