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1. (WO2018128062) METHOD FOR DIAGNOSING ROLLING DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/128062 International Application No.: PCT/JP2017/044745
Publication Date: 12.07.2018 International Filing Date: 13.12.2017
IPC:
G01M 13/04 (2006.01) ,G01N 27/04 (2006.01)
G PHYSICS
01
MEASURING; TESTING
M
TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
13
Testing of machine parts
04
Testing of bearings
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27
Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
02
by investigating impedance
04
by investigating resistance
Applicants:
日本精工株式会社 NSK LTD. [JP/JP]; 東京都品川区大崎一丁目6番3号 6-3, Ohsaki 1-chome, Shinagawa-ku, Tokyo 1418560, JP
Inventors:
前田 成志 MAEDA Masayuki; JP
丸山 泰右 MARUYAMA Taisuke; JP
中野 健 NAKANO Ken; JP
Agent:
特許業務法人栄光特許事務所 EIKOH PATENT FIRM, P.C.; 東京都港区西新橋一丁目7番13号 虎ノ門イーストビルディング10階 Toranomon East Bldg. 10F, 7-13, Nishi-Shimbashi 1-chome, Minato-ku, Tokyo 1050003, JP
Priority Data:
2017-00101906.01.2017JP
Title (EN) METHOD FOR DIAGNOSING ROLLING DEVICE
(FR) PROCÉDÉ PERMETTANT DE DIAGNOSTIQUER UN DISPOSITIF DE ROULEMENT
(JA) 転動装置の診断方法
Abstract:
(EN) The present invention is a method for diagnosing a rolling device provided with an outer member, an inner member, and rolling elements, wherein: an alternating voltage is applied to an electric circuit configured by the outer member, the rolling elements, and the inner member; an impedance and a phase angle of the electric circuit when the alternating voltage is applied is measured; and a lubrication film thickness and a metal contact ratio are calculated between the outer member and the rolling elements and/or the inner member and the rolling elements, on the basis of the measured impedance and phase angle.
(FR) La présente invention concerne un procédé permettant de diagnostiquer un dispositif de roulement pourvu d'un élément externe, d'un élément interne et d'éléments de roulement. Une tension alternative est appliquée à un circuit électrique configuré par l'élément externe, les éléments de roulement et l'élément interne ; une impédance et un angle de phase du circuit électrique lorsque la tension alternative est appliquée, sont mesurés ; et une épaisseur de film de lubrification et un rapport de contact métallique sont calculés entre l'élément externe et les éléments de roulement et/ou l'élément interne et les éléments de roulement, sur la base de l'impédance mesurée et de l'angle de phase mesuré.
(JA) 外方部材と、内方部材と、転動体とを備える転動装置の診断方法であって、外方部材と、転動体と、内方部材とから構成される電気回路に交流電圧を印加し、交流電圧の印加時の電気回路のインピーダンスおよび位相角を測定し、測定したインピーダンスおよび位相角に基づき、外方部材と転動体の間または内方部材と転動体の間の少なくとも一つにおける潤滑膜厚さおよび金属接触割合を算出する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
US16089869