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1. (WO2019065719) FLUID DYNAMIC PRESSURE BEARING DEVICE AND MOTOR HAVING SAME
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/065719 International Application No.: PCT/JP2018/035651
Publication Date: 04.04.2019 International Filing Date: 26.09.2018
IPC:
F16C 17/10 (2006.01) ,F16C 33/10 (2006.01) ,H02K 5/167 (2006.01) ,H02K 7/08 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
17
Sliding-contact bearings for exclusively rotary movement
10
for both radial and axial load
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
06
Sliding surface mainly made of metal
10
Construction relative to lubrication
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
5
Casings; Enclosures; Supports
04
Casings or enclosures characterised by the shape, form, or construction thereof
16
Means for supporting bearings, e.g. insulating support, means for fitting the bearing in the bearing-shield
167
using sliding-contact or spherical cap bearings
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
7
Arrangements for handling mechanical energy structurally associated with the machine, e.g. structural association with mechanical driving motor or auxiliary dynamo-electric machine
08
Structural association with bearings
Applicants:
NTN株式会社 NTN CORPORATION [JP/JP]; 大阪府大阪市西区京町堀1丁目3番17号 3-17, Kyomachibori 1-chome, Nishi-ku, Osaka-shi, Osaka 5500003, JP
Inventors:
岡 翔平 OKA Shouhei; JP
原田 和慶 HARADA Kazuyoshi; JP
平出 淳 HIRADE Jun; JP
新井 隆生 ARAI Takao; JP
山郷 正志 YAMAGOU Masashi; JP
宋 元霜 SONG Yuanshuang; JP
Agent:
城村 邦彦 SHIROMURA Kunihiko; JP
熊野 剛 KUMANO Tsuyoshi; JP
Priority Data:
2017-18845428.09.2017JP
2018-04184208.03.2018JP
Title (EN) FLUID DYNAMIC PRESSURE BEARING DEVICE AND MOTOR HAVING SAME
(FR) DISPOSITIF DE PALIER À PRESSION DYNAMIQUE DE FLUIDE ET MOTEUR ÉQUIPÉ DUDIT DISPOSITIF
(JA) 流体動圧軸受装置およびこれを備えるモータ
Abstract:
(EN) This fluid dynamic pressure bearing device is provided with: a cylindrical oil holding space 13 which is provided between an upper end outer peripheral section of a bearing member 8 and a cylindrical section of a housing 7, and which can hold the oil surface of a lubrication oil 11; and an axial gap 22 which is formed on an upper end surface 8c of the bearing member 8 and has a radially inside end portion connected to a seal gap S. An annular section 71b in contact with the upper end surface 8c of the bearing member 8 is provided, and the oil holding space 13 and the axial gap 22 are communicated through a second passage 22 formed as a groove section provided in at least one among the upper end surface 8c of the bearing member 8 and a lower end surface 71b1 of the annular section 71b, the lower end surface 71b1 contacting the upper end surface 8c.
(FR) L'invention concerne un dispositif de palier à pression dynamique de fluide qui est pourvu : d'un espace cylindrique de retenue d'huile (13) qui est disposé entre une section périphérique externe d'extrémité supérieure d'un élément palier (8) et une section cylindrique d'un boîtier (7), et qui peut retenir la surface d'huile d'une huile de graissage (11) ; d'un espace axial (22) qui est formé sur une surface d'extrémité supérieure (8c) de l'élément palier (8) et qui possède une partie d'extrémité radialement intérieure reliée à un espace d'étanchéité (S). Une section annulaire (71b) en contact avec la surface d'extrémité supérieure (8c) de l'élément palier (8) est fournie, et l'espace de retenue d'huile (13) et l'espace axial (22) communiquent par l'intermédiaire d'un second passage (22) formé en tant que section de rainure disposée dans la surface d'extrémité supérieure (8c) de l'élément palier (8) et/ou dans une surface d'extrémité inférieure (71b1) de la section annulaire (71b), la surface d'extrémité inférieure (71b1) étant en contact avec la surface d'extrémité supérieure (8c).
(JA) 軸受部材8の上端外周部とハウジング7の筒部71aとの間に設けられ、潤滑油11の油面を保持可能な筒状の保油空間13と、軸受部材8の上端面8cで形成され、径方向内側の端部がシール隙間Sに繋がった軸方向隙間22とを備えた流体動圧軸受装置1である。軸受部材8の上端面8cと当接した環状部71bを有し、保油空間13と軸方向隙間22は、軸受部材8の上端面8cおよびこれに当接する環状部71bの下端面71b1の少なくとも一方に設けた溝部で形成される第2通路22を介して連通している。
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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, 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)