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公开(公告)号：EP2952638B1
公开(公告)日：2018-10-24
申请号：EP15170506.8
申请日：2015-06-03
IPC分类号： E02F9/12 , E02F9/20 , E02F9/22 , F15B11/08 , F15B11/042
CPC分类号： F15B11/042 , E02F9/123 , E02F9/2095 , E02F9/2203 , E02F9/2228 , E02F9/2282 , E02F9/2296 , F15B11/08 , F15B2211/20515 , F15B2211/30525 , F15B2211/3059 , F15B2211/6306 , F15B2211/6346 , F15B2211/6355 , F15B2211/6654 , F15B2211/7058 , F15B2211/7135 , F15B2211/75
摘要： An object of the present invention is to provide a hybrid construction machine having a hydraulic motor (3) and an electric motor (14) as driving sources for a swing structure (50), the hybrid construction machine being configured to provide the operator with high manipulability during combined swing operation. This invention provides a hybrid construction machine including a swing structure (50), a hydraulic pump (1), a hydraulic swing motor (3) driving the swing structure (50) using hydraulic fluid from the hydraulic pump (1), an electric swing motor (14) driving the swing structure (50) in conjunction with the hydraulic swing motor (3), a boom cylinder (16) operated simultaneously with the swing structure (50) at times and driven by the hydraulic fluid from the hydraulic pump (1), a first directional control valve (28) controlling flow of the hydraulic fluid supplied from the hydraulic pump (1) to the hydraulic swing motor (3), a second directional control valve (29) controlling the flow of the hydraulic fluid returning from the hydraulic swing motor (3), and a controller (13) and solenoid pressure reducing valves which prevent operation of the second directional control valve (29) when the boom cylinder (16) is operated simultaneously with the swing structure (50).
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公开(公告)号：EP3365513A1
公开(公告)日：2018-08-29
申请号：EP16857888.8
申请日：2016-10-19
申请人： Husqvarna AB
发明人： OLSSON, Tommy
CPC分类号： F15B11/165 , E02F3/965 , E02F9/205 , E02F9/207 , E02F9/2203 , E02F9/2228 , E04G23/08 , F15B11/0406 , F15B11/0423 , F15B2211/20546 , F15B2211/251 , F15B2211/252 , F15B2211/255 , F15B2211/3144 , F15B2211/351 , F15B2211/413 , F15B2211/455 , F15B2211/605 , F15B2211/6306 , F15B2211/6309 , F15B2211/6313 , F15B2211/6652 , F15B2211/6653 , F15B2211/6654 , F15B2211/6658 , F15B2211/7051 , F15B2211/7058 , F15B2211/7135 , F15B2211/851 , G05D1/0011 , G05D2201/0202
摘要： A remote controlled demolition robot (10) comprising a controller (17) and at least one actuator (12) controlled through a hydraulic system (400) comprising at least one valve (13a) connected to a corresponding actuator for a tool (11b) and a pump (410). The controller (17) is configured to operate in a first mode wherein the fluid flow is controlled through the at least one valve (13a), wherein said valve (13a) is a proportional valve, receive a pressure indication indicating a pressure in the hydraulic system (400) and determine if the pressure in the hydraulic system (400) is above a first mode threshold and/or if a pressure change fulfills a first mode condition, and if so operate in a second mode wherein the at least one valve (13a) is in an opened state and the fluid flow is controlled through the pump (410).
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公开(公告)号：EP3203088A4
公开(公告)日：2018-05-30
申请号：EP15845887
申请日：2015-09-29
发明人： HIJIKATA SEIJI , ISHIKAWA KOUJI , IMURA SHINYA
IPC分类号： F15B21/14 , E02F9/22 , F15B11/02 , F15B11/044 , F15B11/05 , F15B11/08 , F15B11/16 , F15B21/08
CPC分类号： F15B21/14 , E02F3/32 , E02F9/2004 , E02F9/22 , E02F9/2217 , E02F9/2232 , E02F9/2267 , E02F9/2271 , E02F9/2285 , E02F9/2296 , F15B11/044 , F15B11/05 , F15B11/16 , F15B21/087 , F15B2211/20546 , F15B2211/3058 , F15B2211/30595 , F15B2211/40515 , F15B2211/41581 , F15B2211/426 , F15B2211/428 , F15B2211/455 , F15B2211/46 , F15B2211/50518 , F15B2211/5159 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6336 , F15B2211/6652 , F15B2211/6654 , F15B2211/6658 , F15B2211/7053 , F15B2211/71 , F15B2211/7142 , F15B2211/761 , F15B2211/88
摘要： Provided is a hydraulic drive system for a work machine configured with a single solenoid proportional valve for a regeneration circuit, wherein substantially the same actuator speed can be secured irrespective of whether or not hydraulic fluid discharged from a hydraulic actuator is regenerated for driving of another hydraulic actuator. The hydraulic drive system includes: a regeneration line that connects a bottom-side hydraulic chamber of a hydraulic cylinder 4 to a portion between a hydraulic pump device 50 and a second hydraulic actuator 8, and a regeneration flow rate adjustment device that supplies, at an adjusted flow rate, at least part of the discharged hydraulic fluid to a portion between the hydraulic pump device 50 and the second hydraulic actuator; a discharge flow rate adjustment device that discharges, at an adjusted flow rate, the discharged hydraulic fluid to a tank; one electric drive device 22 that simultaneously controls the regeneration flow rate adjustment device and the discharge flow rate adjustment device; and a control unit 27 that outputs a control command to the electric drive device in such a manner that falling speed of a first driven body does not vary significantly, irrespective of the magnitude of the regeneration flow rate caused by the regeneration flow rate adjustment device.
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公开(公告)号：EP3306112A1
公开(公告)日：2018-04-11
申请号：EP16803218.3
申请日：2016-05-26
CPC分类号： E02F9/2228 , E02F9/2235 , E02F9/2296 , E02F9/268 , F15B11/04 , F15B11/044 , F15B11/10 , F15B20/00 , F15B2211/30565 , F15B2211/31558 , F15B2211/329 , F15B2211/353 , F15B2211/355 , F15B2211/40515 , F15B2211/41581 , F15B2211/426 , F15B2211/6313 , F15B2211/6316 , F15B2211/6355 , F15B2211/665 , F15B2211/6654 , F15B2211/761 , F15B2211/862
摘要： Disclosed is a hydraulic control system of a construction machine capable of achieving a reduction in meter-out pressure loss in accordance with variation of a negative load acting on a hydraulic actuator and capable of preventing deterioration in operability even when an abnormal condition arises in a pressure sensor detecting the magnitude of a negative load. There are provided meter-out flow lines through which a hydraulic fluid discharged from a hydraulic actuator flows; variable restrictors provided in the meter-out flow lines; a load sensor detecting the magnitude of a negative load which is a load applied to the hydraulic actuator by an external force and which is a load in the same direction as the operating direction of the hydraulic actuator; and a control device which, when the load abnormality sensor does not detect any abnormality in the load sensor, reduces the sum total of the opening areas of the variable restrictors in accordance with an increase in the magnitude of the negative load detected by the load sensor and the operation amount detected by the operation amount sensor and which, when the load abnormality sensor detects abnormality in the load sensor, reduces the sum total of the opening areas of the variable restrictors to a predetermined value in accordance with the operation amount detected by the operation amount sensor.
摘要翻译： 本发明提供一种建筑机械的液压控制装置，其能够根据作用于液压执行机构的负载的变动来实现出口节流用压力损失的降低，即使在压力产生异常的情况下也能够防止操作性的降低 传感器检测负载的大小。 设有流出液压流体的液压流体的流出流路， 设置在出口流量管线中的可变节流器; 负载传感器，其检测负载的大小，所述负负载是通过外力施加至所述液压致动器的负载，并且所述负载是与所述液压致动器的操作方向相同的方向上的负载; 以及控制装置，当所述负载异常传感器未检测到所述负载传感器中的任何异常时，根据由所述负载传感器检测到的所述负载的大小的增加来减小所述可变节流器的开口面积的总和 以及由所述操作量传感器检测到的操作量，并且当所述负载异常传感器检测到所述负载传感器中的异常时，根据由所述操作量检测器检测到的操作量，将所述可变限制器的开口面积的总和减小到预定值 操作量传感器。
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公开(公告)号：EP3149342A4
公开(公告)日：2018-04-11
申请号：EP15802457
申请日：2015-06-02
申请人： PROJECT PHOENIX LLC
发明人： AFSHARI THOMAS
CPC分类号： F15B11/10 , E02F3/425 , E02F9/2271 , F04C2/14 , F04C2/18 , F04C15/008 , F04C15/06 , F04C28/08 , F04C2240/40 , F04C2240/402 , F04C2240/603 , F15B1/26 , F15B11/003 , F15B15/14 , F15B15/18 , F15B2211/2053 , F15B2211/275 , F15B2211/3057 , F15B2211/41563 , F15B2211/41572 , F15B2211/5157 , F15B2211/5158 , F15B2211/6306 , F15B2211/632 , F15B2211/6323 , F15B2211/6343 , F15B2211/6651 , F15B2211/6652 , F15B2211/6653 , F15B2211/6654 , F15B2211/6656 , F15B2211/7053 , F15B2211/7054 , F15B2211/75 , F15B2211/76
摘要： A linear actuator system includes a linear actuator and an integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with two fluid drivers, each fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes the pump in a normal mode of operation in which the prime movers are independently driven and switches to a fail-safe mode of operation in which only one prime mover is operated.
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公开(公告)号：EP3279482A1
公开(公告)日：2018-02-07
申请号：EP15887677.1
申请日：2015-04-03
IPC分类号： F15B11/02
CPC分类号： F15B11/17 , E02F9/2221 , E02F9/2235 , E02F9/2242 , E02F9/2292 , E02F9/2296 , F15B11/02 , F15B2211/20576 , F15B2211/2654 , F15B2211/30595 , F15B2211/6346 , F15B2211/6652 , F15B2211/6654 , F15B2211/7142 , F15B2211/75
摘要： To provide a hydraulic control system for a working machine with high fuel efficiency and higher versatility to be capable of being adapted to special work. The hydraulic control system for the working machine according to the present invention includes: a plurality of directional control valves (31, 32, ...), more than one of which is connected in parallel to each of a plurality of hydraulic pumps (11, 12, 13) to supply hydraulic oil from the hydraulic pump to each of the corresponding actuators (4, 5, 6, 50); operating devices (110, 120, 130, 140) to which an operator inputs manipulated variables; a connection map (182) storing a precedence order for connection between a plurality of hydraulic pumps and a plurality of directional control valves; and a controller (100) controlling the connection conditions of the pumps and the actuators on the basis of the connection a¥map and operation signals.
摘要翻译： 为具有高燃油效率和更高通用性的工作机器提供液压控制系统，以适应特殊工作。 根据本发明的用于工作机械的液压控制系统包括：多个方向控制阀（31,32，...），其多于一个方向控制阀并联连接到多个液压泵（11 ，12,13），用于将来自液压泵的液压油供给到相应的致动器（4,5,6,50）中的每一个; 操作者输入操作变量的操作装置（110,120,130,140） 存储用于多个液压泵与多个方向控制阀之间的连接的优先顺序的连接图（182） 以及基于连接图和操作信号控制泵和致动器的连接状态的控制器（100）。
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公开(公告)号：EP3252237A1
公开(公告)日：2017-12-06
申请号：EP15880192.8
申请日：2015-01-27
发明人： LEE, Sang Hee , LEE, Eun Byeol
CPC分类号： E02F9/2267 , E02F9/20 , E02F9/22 , E02F9/2235 , E02F9/2285 , E02F9/2296 , F15B11/02 , F15B11/0423 , F15B2211/20546 , F15B2211/6316 , F15B2211/6654
摘要： The present invention provides a hydraulic control system comprising: a flow rate control valve; a variable displacement hydraulic pump which is connected to the flow rate control valve and discharges hydraulic pressure to the flow rate control valve; a pump discharge pressure detector which is installed in a section where the flow rate control valve and the variable displacement hydraulic pump are connected, and detects the discharge pressure of the hydraulic pressure discharged from the variable displacement hydraulic pump to the flow rate control valve; and a hydraulic controller comprising a detection unit which is connected to the pump discharge pressure detector, detects the discharge pressure of the variable displacement hydraulic pump and converts the discharge pressure to a pump discharge pressure value, a comparison unit which receives the pump discharge pressure value from the detection unit, compares the pump discharge pressure value with a pre-stored lowest recognition pressure value, and determines whether the pump discharge pressure value is greater or less than the lowest recognition pressure value, and a calculation unit which, by interworking with the comparison unit, if the pump discharge pressure value is less than the lowest recognition pressure value, calculates a control pressure by recognizing the control pressure of the variable displacement hydraulic pump as the lowest recognition pressure value.
摘要翻译： 本发明提供了一种液压控制系统，包括：流量控制阀; 可变容量型液压泵，其与所述流量控制阀连接并向所述流量控制阀排出液压; 泵排出压力检测器，其设置在连接有所述流量控制阀和所述可变容量型液压泵的部分，并检测从所述可变容量型液压泵向所述流量控制阀排出的所述液压的排出压力; 以及液压控制器，该液压控制器包括检测单元，该检测单元连接到泵排出压力检测器，检测可变排量液压泵的排出压力并将排出压力转换成泵排出压力值;比较单元，其接收泵排出压力值 从检测单元将泵排出压力值与预先存储的最低识别压力值进行比较，并且确定泵排出压力值是大于还是小于最小识别压力值;以及计算单元，通过与 比较单元，如果泵排放压力值小于最低识别压力值，则通过将可变排量液压泵的控制压力识别为最低识别压力值来计算控制压力。
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公开(公告)号：EP3202986A1
公开(公告)日：2017-08-09
申请号：EP17153464.7
申请日：2017-01-27
发明人： UEDA, Koji
IPC分类号： E02F9/22 , F15B11/042
CPC分类号： E02F9/2282 , E02F9/2235 , E02F9/2242 , E02F9/2296 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/30595 , F15B2211/45 , F15B2211/665 , F15B2211/6652 , F15B2211/6654 , F15B2211/6658 , F15B2211/7135 , F15B2211/7142
摘要： Provided is a hydraulic drive system capable of causing a specific action of a main actuator and an action of an optional actuator simultaneously and properly. The system includes: first and second pumps (11, 12); a first main supply fluid line and an optional supply fluid line leading to the first pump (11); a second main supply fluid line leading to the second pump (12); a main manipulating device (31) for the main actuator (7); an optional manipulating device (32) for the optional actuator (8); a bleed-off flow rate regulating section (42) to change the bleed-off flow rate for the second pump (12); and a bleed-off control section to operate the bleed-off flow rate regulating section (42) to change the discharge flow rate of the second pump (12) in accordance with a control operation applied to the main manipulating device (31) and to make a bleed-off flow rate in a specific combined manipulation state where a specific main control operation and an optional control operation are simultaneously performed be smaller than that in a single main manipulation state.
摘要翻译： 提供一种液压驱动系统，其能够同时并适当地引起主致动器的特定动作和任选致动器的动作。 该系统包括：第一和第二泵（11,12）; 第一主供应流体管线和通向第一泵（11）的可选供应流体管线; 通向第二泵（12）的第二主供应流体管线; 主致动器（7）的主操纵装置（31）; 用于可选致动器（8）的可选操纵装置（32）; 泄放流量调节部分（42），用于改变第二泵（12）的泄放流量; 以及泄放控制部分，用于根据施加到主操纵装置（31）的控制操作来操作泄放流量调节部分（42）以改变第二泵（12）的泄放流量，并且 在特定的主控制操作和可选的控制操作被同时执行的特定组合操作状态下使泄放流率小于单一主操纵状态下的泄放流率。
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9.发明公开Electro hydrostatic actuator system for retracting/extending landing gear 审中-公开用于缩回/延伸起落架的电动液压执行器系统
公开(公告)号：EP2740944A3
公开(公告)日：2017-06-28
申请号：EP13194678.2
申请日：2013-11-27
发明人： Kondo, Taku , Hagihara, Shogo
CPC分类号： B64C25/22 , B64C13/504 , B64C25/24 , F15B20/004 , F15B2211/20515 , F15B2211/20538 , F15B2211/20576 , F15B2211/6651 , F15B2211/6654 , F15B2211/7114 , F15B2211/75 , F15B2211/783 , F15B2211/8633 , F15B2211/8752
摘要： An electro hydrostatic actuator system for retracting/extending a landing gear includes a plurality of hydraulic actuators and a plurality of hydraulic supply sources each including a single hydraulic pump and a single electric motor and provided in parallel to each other. In a normal state, the hydraulic supply sources together supply operation oil sequentially to the hydraulic actuators. When any of the hydraulic supply sources is failed, the other hydraulic supply source(s) other than the failed hydraulic supply source supplies operation oil sequentially to the hydraulic actuators.
摘要翻译： 用于使起落架缩回/伸出的电动液压致动器系统包括多个液压致动器和多个液压供给源，每个液压供给源均包括单个液压泵和单个电动马达并且彼此平行设置。 在正常状态下，液压供应源一起向液压致动器依次供应操作油。 当任何一个液压供应源失效时，除故障液压供应源以外的其他液压供应源向液压致动器依次供应操作油。
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10.发明公开HYDRAULIC ENERGY REGENERATION APPARATUS FOR MACHINERY 审中-公开VORRICHTUNG ZURRÜCKGEWINNUNGHYDRAULISCHER ENERGIEFÜRMASCHINEN
公开(公告)号：EP3147519A1
公开(公告)日：2017-03-29
申请号：EP14892002.8
申请日：2014-05-16
发明人： HIJIKATA Seiji , ISHIKAWA Kouji , OOKI Takatoshi , IMURA Shinya
CPC分类号： E02F9/2217 , E02F3/32 , E02F9/2095 , E02F9/2232 , E02F9/2235 , E02F9/2242 , E02F9/2292 , E02F9/2296 , F04B49/00 , F15B11/16 , F15B13/06 , F15B21/087 , F15B21/14 , F15B2211/20515 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/255 , F15B2211/61 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6652 , F15B2211/6654
摘要： Provided is a hydraulic fluid energy regeneration device for a work machine, including: a regeneration hydraulic motor driven by discharged return hydraulic fluid; a first hydraulic pump mechanically connected to the regeneration hydraulic motor; a second hydraulic pump that delivers an hydraulic fluid for driving a first hydraulic actuator and/or a second hydraulic actuator; a junction line that allows the hydraulic fluid delivered by the second hydraulic pump to be joined; a second regulator that regulates the delivery flow rate of the second hydraulic pump; and a first regulator that regulates the flow rate of the hydraulic fluid coming from the first hydraulic pump and flowing through the junction line. A control unit includes: a first computing part that calculates a demanded pump flow rate in accordance with the input target replacement command for the second hydraulic pump, the first computing part further outputting a control command to the first regulator in such a manner that the flow rate of the hydraulic fluid coming from the first hydraulic pump and flowing through the junction line equals to or lower than the demanded pump flow rate; and a second computing part that subtracts from the demanded pump flow rate the flow rate of the hydraulic fluid coming from the first hydraulic pump to obtain a target pump flow rate, the second computing part further outputting a control command to the second regulator in such a manner that the calculated target pump flow rate is attained.
摘要翻译： 提供了一种用于作业机械的液压流体能量再生装置，包括：由排出的返回液压流体驱动的再生液压马达; 机械地连接到再生液压马达的第一液压泵; 第二液压泵，其输送用于驱动第一液压致动器和/或第二液压致动器的液压流体; 连接线，其允许由第二液压泵输送的液压流体接合; 第二调节器，其调节第二液压泵的输送流量; 以及第一调节器，其调节来自第一液压泵并流过接合线的液压流体的流量。 控制单元包括：第一计算部，其根据第二液压泵的输入目标替换指令计算要求的泵流量，第一运算部进一步向第一调节器输出控制指令，流量 来自第一液压泵并流过连接管的液压流体的速率等于或低于所需泵流量; 以及第二计算部件，其从所述要求的泵流量中减去来自所述第一液压泵的液压流体的流量以获得目标泵流量，所述第二计算部件进一步向所述第二调节器输出控制命令， 达到计算出的目标泵流量的方式。
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