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51. 发明授权

EP0425684B1 VALVE APPARATUS AND HYDRAULIC DRIVE SYSTEM 失效
标题翻译：阀装置和液压驱动系统。
公开(公告)号：EP0425684B1
公开(公告)日：1994-12-14
申请号：EP90904937.1
申请日：1990-03-23
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： HIRATA, Toichi , SUGIYAMA, Genroku
IPC分类号： F16K11/07
CPC分类号： F15B13/0842 , F15B13/06 , Y10T137/87185
摘要： A valve device according to the present invention includes a casing (11; 41) provided with at least one pair of parallel arranged spool bores (12a, 13a, etc.; 42a, 43a), one common pump port (19), at least one tank port (16t), and a plurality of actuator ports (22a, 23a, etc.) including two actuator ports communicating with each spool bore; and at least one pair of parallel arranged spools (14a, 15a, etc.; 44a, 45a) inserted slidably in the spool bores in the casing and adapted to control the communication among the common pump port, tank port and two actuator ports. The common pump port communicates with a common pump line (18), which is formed so that the pump line crosses a plane of the axes of the two parallel arranged spool bores and spools, between the spool bores and spools. A hydraulic driving apparatus according to the present invention is constructed by using this valve device.

52. 发明公开

EP0614016A1 HYDRAULIC DRIVE UNIT OF HYDRAULIC WORKING MACHINE 失效
标题翻译：液压驱动系统的液压建筑机械。
公开(公告)号：EP0614016A1
公开(公告)日：1994-09-07
申请号：EP93919566.5
申请日：1993-08-25
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： HIRATA, Toichi , SUGIYAMA, Genroku , ISHIKAWA, Koji , OCHIAI, Masami
IPC分类号： F15B11/00 , E02F9/22
CPC分类号： B01D53/28 , B01D53/40 , B01D53/46 , E02F9/2235 , E02F9/2282 , E02F9/2296 , F15B11/055 , F15B11/165 , F15B21/087 , F15B2211/20553 , F15B2211/253 , F15B2211/30505 , F15B2211/3116 , F15B2211/351 , F15B2211/40507 , F15B2211/41554 , F15B2211/6058 , F15B2211/63 , F15B2211/6309 , F15B2211/6316 , F15B2211/6333 , F15B2211/6355 , F15B2211/6652 , F15B2211/7053 , F15B2211/71
摘要： A hydraulic drive unit of a hydraulic working machine comprising: a hydraulic pump (2) of a variable capacity; at least one actuator (3) driven by pressure oil discharged from said hydraulic pump; a center bypass type direction changeover valve (1) for controlling the flow of the pressure oil supplied from said hydraulic pump to the actuator; a center bypass line (20) for connecting the center bypass path of said direction changeover valve to a tank; a first signal generating means having a fixed throttle (4) provided on the center bypass line, for generating a first control signal for determining a first target capacity of said hydraulic pump by use of pressure generated by said fixed throttle; and a pump regulator (6) for controlling a displacement capacity of said hydraulic pump on the basis of the first control signal, which unit further comprises: a second signal generating means (32 - 26) for generating a second control signal for determining a second target capacity of said hydraulic pump; and a selecting means for selecting one control signal larger in target capacity out of the first and the second control signals as a third control signal to send it to said pump regulator (6). With this arrangement, satisfactory metering characteristics similar to those in the past can be obtained under a light load and satisfactory metering characteristics can be also obtained under a heavy load.

53. 发明授权

EP0432266B1 HYDRAULIC DRIVING UNIT FOR CONSTRUCTION MACHINERY 失效
标题翻译：液压驱动单元进行施工。
公开(公告)号：EP0432266B1
公开(公告)日：1993-11-24
申请号：EP90901893.9
申请日：1990-01-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TATSUMI, Akira , HIRATA, Toichi , HAGA, Masakazu 6-403, Chiyoda-House , IZUMI, Eiki
IPC分类号： F15B11/00 , E02F9/22
CPC分类号： F16H61/4078 , B60W10/06 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F15B2211/20553 , F15B2211/253 , F15B2211/50536 , F16H61/433 , F16H2059/6846
摘要： This invention relates to a hydraulic driving unit provided with: an engine (1); a variable capacity hydraulic pump (2) driven by said engine; at least one hydraulic actuator driven by oil delivered from the pump (6); a control valve means (8) for interconnecting the hydraulic pump and actuator and controlling the flow rate of hydraulic fluid fed to the actuator according to the degree of operation of an operating means (58); a pump control means (17) for controlling the displacement volume of the hydraulic pump according to the degree of operation of the operating means so that the discharge quantity of the hydraulic pump increases as the aforesaid degree of operation increases; and an engine control means (29) for controlling the RPM of the engine. The engine control means (29) monitors whether or not the discharge quantity of the hydraulic pump (2) reaches saturation and, when a specified saturation condition is reached by hydraulic pump, it can exhibit such functions (33, 36) as increasing the RPM of the engine (1) and eliminating saturation.

54. 发明公开

EP0425684A1 VALVE APPARATUS AND HYDRAULIC DRIVE SYSTEM 失效
标题翻译： VENTILANORDNUNG UND HYDRAULISCHES ANTRIEBSSYSTEM。
公开(公告)号：EP0425684A1
公开(公告)日：1991-05-08
申请号：EP90904937.1
申请日：1990-03-23
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： HIRATA, Toichi , SUGIYAMA, Genroku
IPC分类号： F16K11/07
CPC分类号： F15B13/0842 , F15B13/06 , Y10T137/87185
摘要： A valve device according to the present invention includes a casing (11; 41) provided with at least one pair of parallel arranged spool bores (12a, 13a, etc.; 42a, 43a), one common pump port (19), at least one tank port (16t), and a plurality of actuator ports (22a, 23a, etc.) including two actuator ports communicating with each spool bore; and at least one pair of parallel arranged spools (14a, 15a, etc.; 44a, 45a) inserted slidably in the spool bores in the casing and adapted to control the communication among the common pump port, tank port and two actuator ports. The common pump port communicates with a common pump line (18), which is formed so that the pump line crosses a plane of the axes of the two parallel arranged spool bores and spools, between the spool bores and spools. A hydraulic driving apparatus according to the present invention is constructed by using this valve device.
摘要翻译：根据本发明的阀装置包括：壳体（11; 41），至少设置有一对平行布置的卷轴孔（12a，13a等; 42a，43a），至少一个公共泵口（19）一个罐口（16t）和多个致动器端口（22a，23a等），其包括与每个卷轴孔连通的两个致动器端口; 以及至少一对平行布置的线轴（14a，15a等; 44a，45a），其可滑动地插入到所述壳体中的所述卷轴孔中，并且适于控制所述公共泵口，罐口和两个致动器端口之间的连通。公共泵口与公共泵管线（18）连通，泵管线（18）被形成为使得泵管线在阀芯孔和阀芯之间跨过两个平行布置的阀芯孔和阀芯的轴线的平面。根据本发明的液压驱动装置通过使用该阀装置构成。

55. 发明公开

EP0366815A1 HYDRAULIC DRIVE UNIT FOR CONSTRUCTION MACHINERY 失效
标题翻译：水力发电机组（FURR BAUMASCHINEN）。
公开(公告)号：EP0366815A1
公开(公告)日：1990-05-09
申请号：EP89905762.4
申请日：1989-05-10
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： HIRATA, Toichi , SUGIYAMA, Genroku , KAJITA, Yusuke Kawaraba-Apartment 101
IPC分类号： F15B11/05 , F15B11/16
CPC分类号： F15B21/087 , E02F9/2225 , E02F9/2232 , E02F9/2296 , F15B11/163 , F15B13/0417 , F15B2211/20553 , F15B2211/25 , F15B2211/30535 , F15B2211/3057 , F15B2211/3111 , F15B2211/329 , F15B2211/50527 , F15B2211/50536 , F15B2211/5157 , F15B2211/526 , F15B2211/55 , F15B2211/6054 , F15B2211/6313 , F15B2211/6654 , F15B2211/7058 , F15B2211/71
摘要： A hydraulic drive unit comprises a hydraulic pump (1), a plurality of hydraulic actuators (2, 3) driven by the hydraulic oil supplied from the hydraulic pump, a plurality of flow rate control valves (4, 5) for controlling the flow of the hydraulic oil, and a plurality of branch flow compensating valves (6, 7) for respectively controlling the differential pressure preceding or following each of the flow rate control valves, the plurality of actuators (2, 3) including a first actuator (2) whose load pressure tends to become relatively large and a second actuator (3) whose load pressure is smaller than that of the first actuator. Branch flow control means (22, 33) are provided to control the branch flow compensating valve (7) involved in controlling the second actuator in such a manner that, while the first and second actuators (2, 3) are being driven on a multiplicable basis, the preceding and following pressure (Pz2-P12) of the flow rate control valve (5) involved in the second actuator (3) is made greater than the pressure (Pz1-P11) thereof.
摘要翻译：液压驱动单元包括液压泵（1），由从液压泵供应的液压油驱动的多个液压致动器（2,3），多个流量控制阀（4,5），用于控制液压泵液压油和多个用于分别控制每个流量控制阀之前或之后的差压的分支流量补偿阀（6,7），所述多个致动器（2,3）包括第一致动器（2）其负载压力趋于变大，负载压力小于第一致动器的第二致动器（3）。分支流量控制装置（22,33）被设置为控制涉及控制第二致动器的分支流量补偿阀（7），使得在第一和第二致动器（2,3）被驱动的同时，使第二致动器（3）中涉及的流量控制阀（5）的前后压力（Pz2-P12）大于其压力（Pz1-P11）。

56. 发明公开

EP0354972A1 VALVE DEVICE 失效
标题翻译： VENTILANORDNUNG。
公开(公告)号：EP0354972A1
公开(公告)日：1990-02-21
申请号：EP89902812.0
申请日：1989-02-23
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SUGIYAMA, Genroku , HIRATA, Toichi , TANAKA, Hideaki , YUASA, Kazumasa , NOZAWA, Yusaku
IPC分类号： F16K17/04 , F15B11/02
CPC分类号： F15B13/0405 , F16K15/18
摘要： An actuator control valve (6) is fitted on a hydraulic machine having a hydraulic pump (1) and a hydraulic actuator (2) driven by a pressure oil discharged from this hydraulic pump. This valve device has a meter-in circuit (4) adapted to introduce the pressure oil discharged from the hydraulic pump into the actuator, and a meter-out circuit (5) adapted to introduce a return oil from the actuator into a tank (3). The meter-out circuit is provided with pilot circuits (24a, 24b) including a main valve (22) for controlling the return oil from the actuator, and a variable throttle means (23), which main valve is adapted to be closed when the pilot circuits are closed, and to vary the degree of opening of itself in accordance with the throttling rate of the variable throttle means, and control means (27-31) adapted to vary the throttling rate of the variable throttle means in accordance with the driving pressure of the actuator.
摘要翻译：致动器控制阀（6）安装在具有由该液压泵排出的压力油驱动的液压泵（1）和液压致动器（2）的液压机上。该阀装置具有适于将从液压泵排出的压力油引入致动器的计量回路（4）。出口回路（5）适于将来自致动器的返回油引入罐（3）中。出口电路设有包括用于控制来自致动器的返回油的主阀（22）和可变节气门（23）的先导电路（24a，b）。主阀适于在先导电路闭合时闭合，并且根据可变节流阀的节流速率改变其自身的开度。控制器（27-31）适于根据致动器的驱动压力改变可变节气门的节流速度。

57. 发明公开

EP0281635A1 VALVE DEVICE 失效
标题翻译：阀门装置
公开(公告)号：EP0281635A1
公开(公告)日：1988-09-14
申请号：EP87905792.5
申请日：1987-09-07
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SATOH, Shinichi , HIRATA, Toichi , SUGIYAMA, Genroku , TANAKA, Hideaki
IPC分类号： F15B11/08 , F16K31/363 , F16K49/00
CPC分类号： F15B13/0422 , Y10T137/86582 , Y10T137/86606
摘要： A valve device (1; 50; 60,61; 90; 100) having at least one flow rate control valve (21, 22; 63,76; 101) installed in a valve body block (20; 62, 82), wherein the flow rate control valves are joined to the interior of pilot pipes (6-9) which connect a pilot valve (2), into which a pilot pressure oil of a predetermined pressure set by a relief valve (19) is fed, to a pilot type direction change-over valve (3), which is adapted to be driven in accordance with the operation of the pilot valve, thereby permitting a free flow of the pressure oil from the pilot valve to the direction change-over valve and restricting a flow of the pressure oil from the direction change-over valve to the pilot valve. In the valve body block (20; 62, 82), a first passage (31; 52; 68, 81), which is connected to a return pipe 414; 71, 72, 86) extending to the relief valve (19), is formed.
摘要翻译： 1。一种阀装置（1; 50; 60,61; 90; 100），其具有安装在阀体块（20; 62,82）中的至少一个流量控制阀（21,22; 63,76; 101），其中流量控制阀与将先导阀（2）连接的先导管（6-9）的内部连接，先导阀（2）中供给有由安全阀（19）设定的预定压力的先导压力油（3），其适于根据先导阀的操作而被驱动，从而允许压力油从先导阀自由流动到方向切换阀，并且限制a方向切换阀压力油从方向转换阀流向先导阀。在阀体块（20; 62,82）中，连接到回流管414的第一通道（31; 52; 68,81）延伸到安全阀（19）的压力传感器（71,72,86）被形成。

58. 发明授权

EP1273721B1 CONSTRUCTION MACHINE MANAGEMENT SYSTEM AND CONSTRUCTION MACHINE 有权
标题翻译：建筑机械管理系统，以及建筑机械
公开(公告)号：EP1273721B1
公开(公告)日：2013-05-22
申请号：EP01917741.9
申请日：2001-03-30
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ADACHI, Hiroyuki , HIRATA, Toichi , SUGIYAMA, Genroku , WATANABE, Hiroshi , SHIBATA, Koichi , KOMATSU, Hideki
IPC分类号： E02F9/20
CPC分类号： G08G1/20 , E02F9/2045 , E02F9/26 , E02F9/267

59. 发明授权

EP1286003B1 METHOD FOR MANAGING CONSTRUCTION MACHINE AND ARITHMETIC PROCESSING APPARATUS 有权
标题翻译：方法的管理施工机械与计算机单元
公开(公告)号：EP1286003B1
公开(公告)日：2012-05-09
申请号：EP01917691.6
申请日：2001-03-30
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ADACHI, Hiroyuki , HIRATA, Toichi , SUGIYAMA, Genroku , WATANABE, Hiroshi , MIURA, Shuichi , MITSUYA, Koji , SAITO, Yoshiaki , SATO, Atsushi
IPC分类号： G07C5/00 , G07C5/08 , E02F9/20
CPC分类号： E02F9/20 , G07C5/008 , G07C5/085
摘要： A controller (2) is provided to a hydraulic shovel (1) operated on the market. The operation hours of the engine (32), front (15), pivot cab (13), and traveling gear (12) are measured. The data is stored in a memory of the controller (2), transferred to a base station computer (3) through satellite communication or an FD, and stored in a database (100) of the base station computer (3). The base station computer (3) reads data stored in the database (100) for each hydraulic shovel, calculates the operation hours of each component associated with each portion on an operation hour base of the portion, compares the operation hours with the preset target replacement time intervals of the component, and calculates the remaining time until the next replacement of the component, thus managing the replacement scheduled time. In such a way, even if the construction machine has portions of different operation hours, an appropriate replacement scheduled time of each component can be known.

60. 发明授权

EP0790355B1 EXCAVATION REGION SETTING APPARATUS FOR CONTROLLING REGION LIMITED EXCAVATION BY CONSTRUCTION MACHINE 失效
标题翻译：疏浚区固定装置，用于控制工作区域限制挖沙建筑机械
公开(公告)号：EP0790355B1
公开(公告)日：2006-08-30
申请号：EP96926605.5
申请日：1996-08-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： WATANABE, Hiroshi , HIRATA, Toichi , HAGA, Masakazu 9-8, Inayoshihigashi 5-chome , FUJISHIMA, Kazuo Tsukuba-ryo 4-1, Inayoshiminami
IPC分类号： E02F3/43
CPC分类号： E02F3/437 , E02F3/32 , E02F9/2285 , E02F9/2296 , E02F9/26
摘要： In an excavation region setting apparatus for controlling the region limited excavation by a construction machine, which is adapted to calculate a target speed vector Vc for use in controlling a front unit (1A), on the basis of a vehicle body (1B), restrict when the front unit approaches a boundary of a preset excavation region the moving speed thereof in the direction approaching the same boundary, by correcting the target speed vector, and move the front unit along the mentioned boundary, an outer reference 80 is set first in the horizontal direction in a position outside a hydraulic shovel body, and a depth hr between the outer reference and the boundary of the excavation region is then set by using a setter (7), for the purpose of setting the excavation region. The front unit (1A) is then moved, and, when the position of a front reference 70 agrees with that of the outer reference, an outer reference setting switch (71) is pressed. Consequently, a control unit (9) computes a height hf between a vehicle body reference point O and the outer reference, and then a height hs of a boundary surface of the excavation region with respect to the vehicle body reference point O on the basis of this depth hr by using the height hf as a correction value, and set the excavation region based on the vehicle body (1B), on the basis of which the target speed vector Vc is calculated. This enables the setting of an excavation region suitable for an excavation control operation in which computation is carried out on the basis of the vehicle reference to be done, and a highly reliable control operation to be carried out.

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