Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018181033) COOLING STRUCTURE FOR BEARING DEVICE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2018/181033 International Application No.: PCT/JP2018/011809
Publication Date: 04.10.2018 International Filing Date: 23.03.2018
IPC:
F16C 37/00 (2006.01) ,F16C 19/06 (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
37
Cooling of bearings
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
19
Bearings with rolling contact, for exclusively rotary movement
02
with bearing balls essentially of the same size in one or more circular rows
04
for radial load mainly
06
with a single row of balls
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:
那須 惠介 NASU, Keisuke; JP
小畑 智彦 OBATA, Tomohiko; JP
吉野 真人 YOSHINO, Masato; JP
Agent:
杉本 修司 SUGIMOTO, Shuji; JP
野田 雅士 NODA, Masashi; JP
堤 健郎 TSUTSUMI, Takeo; JP
Priority Data:
2017-06518329.03.2017JP
2017-19761911.10.2017JP
2017-19762011.10.2017JP
Title (EN) COOLING STRUCTURE FOR BEARING DEVICE
(FR) STRUCTURE DE REFROIDISSEMENT DESTINÉE À UN DISPOSITIF DE PALIER
(JA) 軸受装置の冷却構造
Abstract:
(EN) An outer ring spacer (4) and an inner ring spacer (5) are interposed between a plurality of rolling bearings (1) arranged in the axial direction in a bearing device (J). A supply port (10) for supplying cooling compressed air A toward the outer circumferential surface of the inner ring spacer (5) is provided in the inner circumferential surface of the outer ring spacer (4). An exhaust port (20) for the compressed air (A) is provided in the axial end surface of the outer ring spacer (4). Barrier walls (15) for preventing the compressed air supplied through the supply port (10) from flowing into a bearing space (30) are provided at both axial ends of the inner ring spacer (5) so as to protrude toward the radially outer side. A part of the barrier walls (15) faces the inner ring spacer (5) through a minute gap (16) to form a first labyrinth seal (LS).
(FR) Un écarteur de bague externe (4) et un écarteur de bague interne (5) sont interposés entre une pluralité de paliers à roulement (1) disposés dans la direction axiale dans un dispositif de palier (J). Un orifice d'alimentation (10) conçu pour fournir de l'air comprimé de refroidissement A vers la surface circonférentielle externe de l'écarteur de bague interne (5) est placé dans la surface circonférentielle interne de l'écarteur de bague externe (4). Un orifice d'échappement (20) pour l'air comprimé (A) est placé dans la surface d'extrémité axiale de l'écarteur de bague externe (4). Des parois de barrière (15) destinées à empêcher l'air comprimé fourni par l'orifice d'alimentation (10) de s'écouler dans un espace de palier (30) sont placées aux deux extrémités axiales de l'écarteur de bague interne (5) de façon à faire saillie vers le côté radialement externe. Une partie des parois de barrière (15) fait face à l'écarteur de bague interne (5) à travers un espace minuscule (16) pour former un premier joint à labyrinthe (LS).
(JA) 軸受装置(J)は、軸方向に並ぶ複数の転がり軸受(1)の間に外輪間座(4)および内輪間座(5)が介在されている。外輪間座(4)の内周面に、内輪間座(5)の外周面に向けて冷却用の圧縮エアAを供給する供給口(10)が設けられ、外輪間座(4)の軸方向端面に、圧縮エア(A)の排気口(20)が設けられている。内輪間座(5)の軸方向両端部に、外径側に張り出して供給口(10)から供給された圧縮エアが軸受空間(30)へ流入することを阻止する障害壁(15)が設けられている。障害壁(15)の一部が内輪間座(5)と微小な隙間(16)を介して対向し、第1ラビリンスシール(LS)を構成している。
front page image
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)