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1. (WO2019064688) HYDRAULIC DRIVE DEVICE OF CONSTRUCTION MACHINE
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Pub. No.: WO/2019/064688 International Application No.: PCT/JP2018/019890
Publication Date: 04.04.2019 International Filing Date: 23.05.2018
IPC:
E02F 9/22 (2006.01) ,F15B 11/02 (2006.01) ,F15B 11/17 (2006.01)
E FIXED CONSTRUCTIONS
02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
F
DREDGING; SOIL-SHIFTING
9
Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/-E02F7/160
20
Drives; Control devices
22
Hydraulic or pneumatic drives
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
02
Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
15
FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
B
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
11
Servomotor systems without provision for follow-up action
16
with two or more servomotors
17
using two or more pumps
Applicants:
株式会社日立建機ティエラ HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD. [JP/JP]; 滋賀県甲賀市水口町笹が丘1番2号 1-2, Sasagaoka, Minakuchicho, Koka-shi, Shiga 5280061, JP
Inventors:
高橋 究 TAKAHASHI Kiwamu; JP
前原 太平 MAEHARA Taihei; JP
石井 剛史 ISHII Takeshi; JP
竹林 圭文 TAKEBAYASHI Yoshifumi; JP
中村 夏樹 NAKAMURA Natsuki; JP
岡 大輔 OKA Daisuke; JP
Agent:
特許業務法人開知国際特許事務所 KAICHI IP; 東京都中央区日本橋室町四丁目3番16号 3-16, Nihonbashi-muromachi 4-chome, Chuo-ku, Tokyo 1030022, JP
Priority Data:
2017-19155729.09.2017JP
Title (EN) HYDRAULIC DRIVE DEVICE OF CONSTRUCTION MACHINE
(FR) DISPOSITIF D'ENTRAÎNEMENT HYDRAULIQUE D'ENGIN DE CHANTIER
(JA) 建設機械の油圧駆動装置
Abstract:
(EN) When simultaneously driving a turning motor and a boom cylinder, this hydraulic drive device enables optimally adjusting hydraulic pump torque distribution and enables feeding the torque actually consumed in a turning motor-driving hydraulic pump accurately back to a boom driving hydraulic pump. To this end, during simultaneous boom raising and turning operations, the permissible torque of a hydraulic pump 302 which supplies hydraulic oil to a turning motor 3c is corrected downwards by a certain percentage, and the permissible torque of a hydraulic pump 102, 202 which supplies hydraulic oil to the boom cylinder 3a is decreased by the amount of torque consumed in the hydraulic pump 102, 202 which supplies hydraulic oil to the turning motor 3c.
(FR) Selon l'invention, lors de l'entraînement simultané d'un moteur rotatif et d'un vérin de flèche, le dispositif d'entraînement hydraulique permet d'ajuster de manière optimale la distribution de couple de pompe hydraulique et d'alimenter correctement le couple réellement consommé dans une pompe hydraulique d'entraînement de moteur rotatif en retour vers une pompe hydraulique d'entraînement de flèche. A cette fin, pendant des opérations simultanées de levage et de rotation de flèche, le couple admissible d'une pompe hydraulique (302) qui fournit de l'huile hydraulique à un moteur rotatif (3c) est corrigé vers le bas d'un certain pourcentage, et le couple admissible d'une pompe hydraulique (102, 202) qui fournit de l'huile hydraulique au vérin de flèche (3a) est réduit de la quantité de couple consommé dans la pompe hydraulique (102, 202) qui fournit de l'huile hydraulique au moteur rotatif (3c).
(JA) 旋回モータとブームシリンダを同時に駆動した場合に、油圧ポンプのトルク配分を最適に調整することができ、かつ旋回モータ駆動用の油圧ポンプで実際に消費しているトルクを正確にブーム駆動用の油圧ポンプにフィードバックすることができるようにする。そのため、ブーム上げと旋回を同時操作した場合に、旋回モータ3cに圧油を供給する油圧ポンプ302の許容トルクを、ある割合だけ低下させるように補正し、ブームシリンダ3aに圧油を供給する油圧ポンプ102,202の許容トルクを旋回モータ3cに圧油を供給する油圧ポンプ102,202の消費トルクの分だけ減少させる。
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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 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)