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71. 发明专利

JP4206194B2 Control device and a control method of the hydraulic drive unit 有权
公开(公告)号：JP4206194B2
公开(公告)日：2009-01-07
申请号：JP2000390436
申请日：2000-12-22
申请人：山洋電気株式会社 , 豊興工業株式会社
发明人：昌彦伊藤 , 紘吉川 , 光雄坂井 , 教正小椋 , 晃三山路 , 孝夫谷口 , 哲勇長坂 , 貴也長濱
IPC分类号： F15B9/09 , F15B9/04

72. 发明专利

JP2007146973A Hydraulic actuator control method and its device 有权
标题翻译：液压执行器控制方法及其装置
公开(公告)号：JP2007146973A
公开(公告)日：2007-06-14
申请号：JP2005342595
申请日：2005-11-28
申请人： Riken Seiki Kk , 理研精機株式会社
发明人： IGARASHI SHUICHI
IPC分类号： F15B9/04 , F15B11/028 , G01N3/10
摘要： PROBLEM TO BE SOLVED: To improve the reliability and the safety of control by pressurization-controlling a push-side chamber or a pull-side chamber in a pressurization process of the push-side chamber or the pull-side chamber by using a discharge-amount variable pump, by depressurization-controlling the chambers by using a high-speed on/off-valve connected to a push-side duct or a high-speed on/off-valve conncted to a pull-side duct, and by pressurization-controlling the pull-side chamber or the push-side chamber that opposes the push-side chamber or the pull-side chamber that is depressurization-controlled via a pull-side selector valve or a push-side selector valve by using the discharge-amount variable pump. SOLUTION: The push-side selector valve 2 is connected to the push-side chamber S of an hydraulic actuator 1, and the pull-side selector valve 3 is connected to the pull-side chamber L. A liquid supply duct 6 is connected to the selector valve on each of the push and pull sides. A liquid return duct 9 is connected to each of a push-side duct 7 connecting the push-side selector valve to the push-side chamber and a pull-side duct 8 connecting the pull-side selector valve to the pull-side chamber. The high-speed on/off-valve 11/12 is provided in each liquid return duct. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了通过使用在推侧室或拉动室的加压过程中对推侧室或拉侧室进行加压控制来提高控制的可靠性和安全性，排气量可变泵，通过使用与推侧管道连接的高速开/关阀或与拉侧管道连接的高速开/关阀对室进行减压控制，以及通过对通过拉动侧选择阀或推侧选择阀进行减压控制的推侧室或拉动侧室的拉动侧室或推侧室进行加压控制，排量变量泵。解决方案：推侧切换阀2与液压执行器1的推侧室S连接，拉动侧选择阀3与拉动侧室L连接。液体供给管6 在每个推拉侧连接到选择阀。与将推侧侧选择阀连接到推侧室的推侧管道7和将拉动侧选择阀连接到拉动室的拉动侧管道8连接有液体返回管道9。每个液体返回管道中设置有高速开/关阀11/12。版权所有（C）2007，JPO＆INPIT

73. 发明专利

JP2006300187A Hydraulic servo device 审中-公开
标题翻译：液压伺服装置
公开(公告)号：JP2006300187A
公开(公告)日：2006-11-02
申请号：JP2005121369
申请日：2005-04-19
申请人： Kawasaki Precision Machinery Ltd , 株式会社カワサキプレシジョンマシナリ
发明人： FUJII KOUU , MITSUI HIROAKI , SOTANI YASUSHI , ODA SHIRO
IPC分类号： F15B9/09 , B30B1/32 , B30B15/16 , B30B15/18 , F15B9/04 , F15B11/08
CPC分类号： F15B2211/6336
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic servo device applicable to various industrial hydraulic machines including a machine tool such as a press, and to accurately control a stroke position of a hydraulic cylinder regardless of the kind of a workpiece. SOLUTION: A cylinder 11 is vertically arranged, and pressure on a tube side generated by the own weight of a cylinder rod 21 is guided to a hydraulic pump 13. Pilot pressure is used for switching the capacity of the hydraulic pump 13. Higher pressure between the pressure on tube side of the cylinder 11 and the pressure on the rod side is used for pressure for switching the capacity of the hydraulic pump 13. The pilot pressure is obtained by switching an electromagnetic selector valve 16. The switching of the electromagnetic selector valve 16 follows a stroke of the cylinder rod 21. The stroke of the cylinder rod 21 is detected by a position sensor 14. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供适用于包括诸如压机的机床的各种工业液压机械的液压伺服装置，并且不管工件的种类如何，精确地控制液压缸的冲程位置。解决方案：气缸11垂直布置，并且由缸杆21的自重产生的管侧的压力被引导到液压泵13.先导压力用于切换液压泵13的容量。气缸11的管侧的压力与杆侧的压力之间的压力被使用用于切换液压泵13的容量的压力。先导压力通过切换电磁选择阀16来获得。电磁选择阀16跟随气缸杆21的行程。气缸杆21的行程由位置传感器14检测。版权所有（C）2007，JPO＆INPIT

74. 发明专利

JP2006029366A Position control method and device for hydraulic closed circuit 审中-公开
标题翻译：液压闭合电路的位置控制方法和装置
公开(公告)号：JP2006029366A
公开(公告)日：2006-02-02
申请号：JP2004204960
申请日：2004-07-12
申请人： Nachi Fujikoshi Corp , 株式会社不二越
发明人： OGIURA YOICHI
IPC分类号： F15B9/04 , F15B11/08
摘要： PROBLEM TO BE SOLVED: To provide a position control method and a device for a hydraulic closed circuit improving position control by controlling thrust and speed of a single rod cylinder and a rod displacement position of the single rod cylinder.
SOLUTION: Pressure sensors 45, 46 are connected to pressure chambers 32, 36 on a head side and a rod side of the cylinder 31 and the pressure chambers 32, 36 are connected to a hydraulic pump 35 united with a servo motor 47. A load 41 is applied to the piston rod 40 and a position sensor 48 is provided near a tip of the piston rod 40 for detecting the displacement position of the rod 40. Output of the pressure sensors 45, 46 is inputted into a thrust detection circuit 52 and is then inputted from a tare compensation circuit 56 into an arithmetic circuit 55. Output of the position sensor 48 is inputted from a position deviation detection circuit 54 into a position deviation-thrust conversion circuit 55. An output value calculated by the position deviation-thrust conversion circuit 55 is inputted from a cylinder area compensation circuit 57 into an servo amplifier 50 and the servo motor 47 is controlled.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过控制单杆气缸的推力和速度以及单杆气缸的杆位移来提供位置控制方法和液压闭路改善位置控制装置。解决方案：压力传感器45,46连接到气缸31的头侧和杆侧的压力室32,36，压力室32,36连接到与伺服电机47结合的液压泵35 负载41被施加到活塞杆40上，位置传感器48设置在活塞杆40的顶端附近，用于检测杆40的位移位置。压力传感器45,46的输出被输入到推力检测电路52，然后从皮重补偿电路56输入到运算电路55.位置传感器48的输出从位置偏差检测电路54输入到位置偏差推力转换电路55.由位置计算出的输出值偏移推力转换电路55从气缸区域补偿电路57输入到伺服放大器50中，控制伺服电动机47。版权所有（C）2006，JPO＆NCIPI

75. 发明专利

JP3247617B2 失效
公开(公告)号：JP3247617B2
公开(公告)日：2002-01-21
申请号：JP23411496
申请日：1996-09-04
IPC分类号： F15B9/04 , F15B11/02 , F15B11/08

76. 发明专利

JP2001214903A HYDRAULIC DRIVE UNIT 失效
公开(公告)号：JP2001214903A
公开(公告)日：2001-08-10
申请号：JP2000024964
申请日：2000-02-02
申请人： KAYABA INDUSTRY CO LTD
发明人： KUBOTA TOMOO , SATO KOSUKE
IPC分类号： F15B9/04 , F15B11/02 , F15B11/08
摘要： PROBLEM TO BE SOLVED: To provide a device capable of simultaneously attaining high efficiency and high control performance, in the hydraulic drive unit using a hydraulic cylinder. SOLUTION: A separate oil hydraulic pump 21, 22 is connected respectively to an extending/contacting side oil chamber 11, 12 of a hydraulic cylinder 10, these pumps are driven by a separate electric servomotor 31, 32. In a control means 1, a command relating to the electric servomotor 31, 32 is respectively calculated, based on displacement and its target value of the hydraulic cylinder 10 detected by a displacement detector 14. In this way, by independently controlling the respective oil hydraulic motors 21, 22, this constitution, though generating no loss flow amount, can prevent generation of a negative pressure in the hydraulic cylinder 10 with no use of a check valve or the like.

77. 发明专利

JPH09329103A HYDRAULIC DEVICE 失效
公开(公告)号：JPH09329103A
公开(公告)日：1997-12-22
申请号：JP14618296
申请日：1996-06-07
申请人： OPTON KK
发明人： YOGO TERUAKI
IPC分类号： F15B9/04 , F15B9/08 , F15B11/20
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic device which can be driven and controlled by directly connecting a plurality of hydraulic actuators to a single hydraulic pump. SOLUTION: A hydraulic pump 1 is used which is driven by an electric motor 6 and can be rotated in both directions according to its forward or backward rotation. Ports 15 to 20 of each of the hydraulic actuators 12 to 14 are connected in parallel to both ports 2 and 4 of the hydraulic pump 1 through pipe lines 8 and 10, and electromagnetic valves 22 to 24 are provided in the pipe line 8 for each of the hydraulic actuators 12 to 14. The hydraulic actuators 12 to 14 to be driven are controlled by opening/closing of each of the electromagnetic valves 22 to 24, and the operating direction of the hydraulic actuators 12 to 14 is controlled by forward/backward rotation of the electric motor 6. Moreover, a positional sensor 36 is provided for detecting displacement of the single hydraulic actuator 12, and the electric motor 6 is controlled based on its signal.

78. 发明专利

JPH0968201A HYDRAULIC CONTROL CIRCUIT OF CONSTRUCTION MACHINE 失效
公开(公告)号：JPH0968201A
公开(公告)日：1997-03-11
申请号：JP22314595
申请日：1995-08-31
申请人： SUMITOMO CONSTR MACH
发明人： TSUKAMOTO HIROYUKI
IPC分类号： E02F9/22 , F15B9/04 , F15B11/00 , F15B11/04 , F15B11/16
摘要： PROBLEM TO BE SOLVED: To enhance the controllability of an actuator when it is operated in combination with other actuators at crawling speeds, regardless of whether the load on the actuator is heavy or light. SOLUTION: A directional control valve 3 controlling the amount of flow supplied to a revolving motor 1 has a bleed-off throttle 15 which branches downstream of a meter-in throttle 3b. During the stroke of the directional control valve 3, if the load pressure on the revolving motor 1 is high, a part of operating oil flowing to the revolving motor 1 is allowed to escape from the bleed-off throttle 15 to a tank 8, so that the quick action of the revolving motor 1 can be prevented. Also, a check valve 16 is provided downstream of the meter-in throttle 3b and the branch of the bleed-off throttle 15. When the amount of oil supplied to the revolving motor 1 is less than the amount of bleeding, the check valve 16 prevents the operating oil from flowing back from the oil passage 17, thus making it possible to prevent rotation of the revolving motor 1 from being reversed.

79. 发明专利

JPH059641B2 失效
公开(公告)号：JPH059641B2
公开(公告)日：1993-02-05
申请号：JP9779588
申请日：1988-04-20
申请人： RIKEN SEIKI KK , NIPPON KENCHIKU SOGO SHIKENJO , RIKEN KIKI KK
发明人： IGARASHI SHUICHI , MASUO KYOSHI , ISHIKAWA MASAKAZU
IPC分类号： G01N3/10 , F15B9/04 , F15B11/028

80. 实用新型

JPH0318320Y2 失效
公开(公告)号：JPH0318320Y2
公开(公告)日：1991-04-17
申请号：JP13138683
申请日：1983-08-25
IPC分类号： F15B9/04 , B63H25/30

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