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21. 发明专利

JPH08232904A SERVO DEVICE 失效
公开(公告)号：JPH08232904A
公开(公告)日：1996-09-10
申请号：JP6863995
申请日：1995-03-02
申请人： EBARA CORP
发明人： MOCHIZUKI NOBUHIRO , YAMASHINA TOMOSHIROU , USAMI YUICHI
IPC分类号： G21D1/00 , F04B49/06 , F15B9/09
摘要： PURPOSE: To provide a servo device for use in the radiation field such as nuclear reactors, which is capable of improving the danger of contaminating water, reduction in output density due to mechanical limitation, and the limitation of control accuracy and operating speed, in which the danger of polluting water is extremely reduced while high output density is held, and which is capable of realizing smooth action of an actuator, high-speed, high precision positioning, control of optional, speeds. CONSTITUTION: In a servo device provided with a servo mechanism for operating apparatuses in the radiation field, and a servo control unit for controlling the servo mechanism, the servo mechanism i.s provided with an actuator 1 which is connected to a machine system 7 as an object to be controlled and in which water serves as a working fluid, a water-pressure servo valve 2 for controlling the supply and discharge of water to and from the actuator 1, a water-pressure pipelines 9 connecting the actuator 1 to the water-pressure servo valve 2, and a high pressure water generating device 5 for supplying high-pressure water to the water-pressure servo valve 2. Further, the servo control unit is provided with a servo controller 4 for controlling the water-pressure servo valve 2, and a servo driver 3.

22. 发明专利

JP2002235710A HYDRAULIC DRIVE SYSTEM 失效
公开(公告)号：JP2002235710A
公开(公告)日：2002-08-23
申请号：JP2001035321
申请日：2001-02-13
申请人： EBARA CORP , MAEKAWA SEISAKUSHO KK
发明人： SHINODA MASAO , MIYAGAWA SHINPEI , YAMASHINA TOMOSHIRO , TAKAHASHI YOSHIMIZU , MOCHIZUKI NOBUHIRO , MANMOTO SHINZO , KUMAZAWA SHIRO , KODAMA RYUJI
IPC分类号： F15B1/26 , F15B21/04 , F15B21/06
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic drive system capable of preventing water as a working fluid from being decomposed by preventing the efficiency of actuators such as a hydraulic cylinder and a hydraulic motor forming a working device from being lowered, and an optimum operation of equipment such as a flow control valve from being obstructed due to an increase in resistance (back pressure) in a return flow passage caused by an increase in distance between the working device and a hydraulic pressure generating device. SOLUTION: This hydraulic drive system using water as a hydraulic fluid comprises the working devices 10, 20, and 30 for working an object and a hydraulic pressure generating device 40 for generating high-pressure water for driving the working devices 10, 20, and 30. A main tank 41 is installed in the hydraulic pressure generating device 40, an auxiliary tank 54 is installed in the return flow passage 52 allowing to flow the working fluid from constitutent devices of the working devices 10, 20, and 30, and a water disposing device 56 is installed in a flow passage 57 allowing to flow the working fluid from the auxiliary tank 54 to the main tank 41.

23. 发明专利

JP2001074162A FLUID CONTROL VALVE AND PLATE WITH FILTER 失效
公开(公告)号：JP2001074162A
公开(公告)日：2001-03-23
申请号：JP24797299
申请日：1999-09-01
申请人： EBARA CORP
发明人： TAKAHASHI YOSHIMIZU , MOCHIZUKI NOBUHIRO
IPC分类号： F15B11/00 , F15B13/043 , F15B21/04 , F16K27/04 , F16K31/383 , F16K51/00
摘要： PROBLEM TO BE SOLVED: To provide a fluid control valve and a plate with filters used in the fluid control value capable of facilitating the exchange of filters and shortening the exchange operation time. SOLUTION: In this fluid control value formed by installing a valve body 30 in which ports are formed in correspondence with the positions of respective ports of a valve block 10 on the valve block 10, a plate 20 is provided between the valve block 10 and the valve body 30. Passages communicating the respective ports of the valve block 10 and the respective ports of the valve body 30 are formed in the plate 20, and filters 24, 25 are provided on the passages.

24. 发明专利

JP2003156007A HYDRAULIC DRIVING SYSTEM 审中-公开
公开(公告)号：JP2003156007A
公开(公告)日：2003-05-30
申请号：JP2001355951
申请日：2001-11-21
申请人： EBARA CORP
发明人： NOWATARI HIROYASU , MOCHIZUKI NOBUHIRO , YAMASHINA TOMOSHIRO , MIYAGAWA SHINPEI
IPC分类号： F15B11/17
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic driving system that is suitable as a driving system for barrier free home use equipment of an environmental reconciliation type, is easily handled by a living weak such as an aged person or a physically disabled person, is easily maintained and managed, improves convenience of a user by preventing a failure, and sufficiently effectively uses a water resource. SOLUTION: This hydraulic driving system has a hydraulic generating device 30 comprising a low pressure generating hydraulic pump 1, a high pressure generating hydraulic pump 14, and a water tank 13 for reserving operating water. Pipes for passing operating water are arranged so that equipment such as the home use equipment having hydraulic driving devices 3 and 4 for low pressure and hydraulic driving devices 16 and 17 for high pressure corresponding to respective pressure levels is driven by water pressure generated by the low pressure generating hydraulic pump 1 and the high pressure generating hydraulic pump 14.

25. 发明专利

JP2002238444A AUTOMATICALLY BONE-REMOVING TREATMENT SYSTEM FOR UPPER HALF CHICKEN MEAT CARCASS 失效
公开(公告)号：JP2002238444A
公开(公告)日：2002-08-27
申请号：JP2001037646
申请日：2001-02-14
申请人： EBARA CORP , MAEKAWA SEISAKUSHO KK
发明人： SHINODA MASAO , MIYAGAWA SHINPEI , YAMASHINA TOMOSHIRO , TAKAHASHI YOSHIMIZU , MOCHIZUKI NOBUHIRO , MANMOTO SHINZO , KUMAZAWA SHIRO , KODAMA RYUJI
IPC分类号： A22C17/00 , A22C21/00
摘要： PROBLEM TO BE SOLVED: To provide an automatically bone-removing treatment system for upper half chicken meat carcass, free from any problem involved in electrically, hydraulically or pneumatically driven motors and/or cylinders, safe even if washed with high-pressure water, and hygienically operable. SOLUTION: This system includes a lift dividing table 1 with work-attaching jigs 2 set at specified intervals on the upper surface of the outer circumference thereof and a plurality of stations 1st to 12th each provided with a bone-removing-related treatment unit. This system works in such a way that upper half chicken meat carcasses attached respectively to the jigs 2 through a work charge mounting unit 101 are put to bone-removing-related treatment at the relevant sections of the respective stations during repeated actions of the lift dividing table 1 including advancing, stopping, ascending, descending and advancing again by a lift dividing mechanism; wherein the lift dividing mechanism includes a lift mechanism functioning to vertically move the table 1 and an advancing mechanism functioning to advance the table 1, the driving unit for driving the lift mechanism comprises a hydraulic cylinder with water as the hydraulic fluid, the driving unit for the advancing mechanism comprises a hydraulic motor with water as the hydraulic fluid, and both driving controls of the hydraulic cylinder and the hydraulic motor are conducted using a hydraulic control valve.

26. 发明专利

JP2002149204A CONTROL DEVICE 失效
公开(公告)号：JP2002149204A
公开(公告)日：2002-05-24
申请号：JP2000346671
申请日：2000-11-14
申请人： EBARA CORP
发明人： TAKAHASHI YOSHIMIZU , MOCHIZUKI NOBUHIRO
IPC分类号： F15B9/09 , G05B11/32 , G05B11/36 , G05D3/12
摘要： PROBLEM TO BE SOLVED: To provide such a control device that the correspondence relation among parameters to be adjusted for multiple control specifications can be easily recognized and the response waveform of a controlled system can be easily and visually adjusted. SOLUTION: This control device is equipped with a target signal generator 11 which generates a target signal, a feedback compensator 15 which computes a first manipulated variable according to the deviation of the output signal S of the controlled system from the target value signal, and a feedforward compensator 14 which computes a second manipulated variable according to the target value signal branched off from the target value signal generator 11 and performs two-degree-of-freedom control so that the first and second manipulated variables are added to obtain a manipulated variable of the controlled system and the output of the controlled system is made to coincide with the target value signal; and the target value signal is inputted to the feedback compensator 15 and feedforward compensator 14 via different filters 12 and 13, respectively.

27. 发明专利

JP2000344477A HYDRAULIC DRIVEN LIFTING INDEXING DEVICE 失效
公开(公告)号：JP2000344477A
公开(公告)日：2000-12-12
申请号：JP15519099
申请日：1999-06-02
申请人： EBARA CORP , MAEKAWA SEISAKUSHO KK
发明人： MOCHIZUKI NOBUHIRO , YAMASHINA TOMOSHIRO , TAKAHASHI YOSHIMIZU , MIYAGAWA SHINPEI , MANMOTO SHINZO , KODAMA RYUJI
IPC分类号： A22C17/00 , B23Q1/00 , B23Q1/01 , B23Q1/30 , B23Q1/48 , B23Q16/02 , B23Q39/04 , B66F7/18 , B66F7/28
摘要： PROBLEM TO BE SOLVED: To provide a compact hydraulic driven lifting indexing device having cleanliness, washing resistance, high responsiveness, large outputs and high positioning accuracy at a conveying installation part used particularly as the base machine of a food processing machine. SOLUTION: This device comprises a pivoting table 5 freely rotationally supported by a cross roller bearing 15, a hydraulic motor 9 and a hydraulic cylinder 8 secured to a table base 14 supporting the cross roller bearing 15, with a power transfer mechanism and an output shaft connected thereto, a lifting main spindle 7 connected to the output shaft of the hydraulic cylinder 8, a lift indexing table 1 connected to the lifting main spindle 7 via a bearing 7a in such a way as to be capable of rising and falling relative to the pivoting table 5 and to be bound in a rotating direction, and a casing 18 located outside the table base 14 to surround the power transfer mechanism.

28. 发明专利

JPH11294312A HYDRAULIC ACTUATOR 失效
公开(公告)号：JPH11294312A
公开(公告)日：1999-10-26
申请号：JP9963998
申请日：1998-04-10
申请人： EBARA CORP , MAEKAWA SEISAKUSHO KK
发明人： MOCHIZUKI NOBUHIRO , YAMASHINA TOMOSHIRO , TAKAHASHI YOSHIMIZU , MIYAGAWA SHINPEI , MANMOTO SHINZO , NOMURA HIROAKI
IPC分类号： F03C1/24 , A22C13/00
摘要： PROBLEM TO BE SOLVED: To provide a hydraulic actuator requiring no separate provision of a water jet device used for purifying work in the work environment by providing a hydraulic actuator with a nozzle, and a flow passage supplying high pressure water to a nozzle in the inside of the hydraulic actuator. SOLUTION: A hydraulic motor 10 is provided with a casing 11 in which a return port 17 to be connected to a tank as well as a port supplying high pressure water are provided. A flow passage communicating with a supply port 16 is divided into two, where one of the flow passages communicates with a drive side to convert a movement of a piston inside of the casing 11 to a rotational movement and the other communicates with a nozzle 19 provided at the casing 11. With the integral constitution of the motor and the nozzle 19, work carried out by driving the motor 10 and washing work carried out by jetting water are implemented simultaneously. It is also made unnecessary to provide piping parts or hose, etc., for performing connection between the motor 10, nozzle 19 and a high pressure water generation device.

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