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1. (WO2019049295) WAVE GENERATOR AND WAVE GEAR DEVICE
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Pub. No.: WO/2019/049295 International Application No.: PCT/JP2017/032380
Publication Date: 14.03.2019 International Filing Date: 07.09.2017
IPC:
F16H 1/32 (2006.01) ,F16C 33/58 (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
H
GEARING
1
Toothed gearings for conveying rotary motion
28
with gears having orbital motion
32
in which the central axis of the gearing lies inside the periphery of an orbital gear
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
30
Parts of ball or roller bearings
58
Raceways; Race rings
Applicants:
株式会社ハーモニック・ドライブ・システムズ HARMONIC DRIVE SYSTEMS INC. [JP/JP]; 東京都品川区南大井6丁目25番3号 25-3, Minamioi 6-chome, Shinagawa-ku, Tokyo 1400013, JP
Inventors:
張 新月 ZHANG Xin Yue; JP
清澤 芳秀 KIYOSAWA Yoshihide; JP
Agent:
横沢 志郎 YOKOZAWA Shiro; JP
Priority Data:
Title (EN) WAVE GENERATOR AND WAVE GEAR DEVICE
(FR) GÉNÉRATEUR D'ONDES ET DISPOSITIF D'ENGRENAGES À ONDES
(JA) 波動発生器および波動歯車装置
Abstract:
(EN) A wave generator (4) in a wave gear device (1) has a rigid plug (5) and a wave bearing (7). The wave bearing (7) is a deep-groove ball bearing mounted to an elliptical outer peripheral surface of the rigid plug (5), and an outer ring (9) and inner ring (8) of the wave bearing are bent into an elliptical shape. When the ball diameter of balls (10) is D, the radius of the raceway of the outer ring is Ro, the radius of the raceway of the inner ring is Ri, the outer ring conformity is Ro/D, and the inner ring conformity is Ri/D, the outer ring conformity Ro/D is greater than the inner ring conformity Ri/D. The frictional torque of the wave bearing (7) can be reduced while maintaining the same degree of service life as with the prior art.
(FR) La présente invention concerne un générateur d'ondes (4) d'un engrenage à ondes (1) qui comprend une fiche rigide (5) et un roulement à ondes (7). Le roulement à ondes (7) est un roulement à billes à rainures profondes monté sur une surface périphérique externe elliptique de la fiche rigide (5), et une bague externe (9) et une bague interne (8) du roulement à ondes sont courbées en une forme elliptique. Lorsque le diamètre de bille des billes (10) est D, que le rayon du chemin de roulement de la bague externe est Ro, que le rayon du chemin de roulement de la bague interne est Ri, que la conformité de bague externe est Ro/D et que la conformité de la bague interne est Ri/D, la conformité de la bague externe Ro/D est supérieure à la conformité de la bague interne Ri/D. Le couple de frottement du roulement à ondes (7) peut être réduit tout en maintenant la même importance de durée de vie que dans l'état de la technique.
(JA) 波動歯車装置(1)の波動発生器(4)は、剛性プラグ(5)とウエーブベアリング(7)を有している。深溝玉軸受式のウエーブベアリング(7)は、剛性プラグ(5)の楕円状外周面に装着され、その外輪(9)、内輪(8)が楕円状に撓められている。ボール(10)のボール径をD、外輪の軌道面半径をRo、内輪の軌道面半径をRiとし、外輪コンフォミティをRo/D、内輪コンフォミティをRi/Dとすると、外輪コンフォミティRo/Dは、内輪コンフォミティRi/Dよりも大きい。ウエーブベアリング(7)の実用寿命を従来と同程度に維持しつつ、その摩擦トルクを低減できる。
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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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)