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173 条记录 (耗时 0.019 秒)

    ANTI-RUPTURE TUBE DEVICE
    1.
    发明公开
    ANTI-RUPTURE TUBE DEVICE 审中-公开
    防破裂管装置

    公开(公告)号：EP3312436A1

    公开(公告)日：2018-04-25

    申请号：EP17197491.8

    申请日：2017-10-20

    申请人： Atlantic Fluid Tech S.r.l.

    发明人： STORCI, Christian

    IPC分类号： F15B20/00 ,  F15B13/042 ,  F15B13/02 ,  E02F9/22

    CPC分类号： F15B20/005 ,  E02F9/226 ,  F15B13/023 ,  F15B13/0422 ,  F15B2211/8636

    摘要： A hydraulic tube rupture protection device is disclosed that ensures safety conditions in the event of rupture of a flexible tube connected to a hydraulic actuator of an arm of an excavator, in which the tube rupture protection device comprises a control valve controlled by a pilot line connected to a control member that is manoeuvrable by an operator, a logic element is arranged on a connecting line that connects the pilot line to the flexible tube; in the event of rupture of the flexible tube, without moving the control member, the logic element will open at least partially, causing the at least partial closure of the control valve, limiting the descent speed of the arm of the excavator.

    摘要翻译： 公开了一种液压管道破裂保护装置，其确保在连接到挖掘机的臂的液压致动器的挠性管的破裂时的安全状况，其中管道破裂保护装置包括由连接的先导管线控制的控制阀 涉及一种操作人员可操作的控制部件，逻辑元​​件被布置在连接导向线与柔性管的连接线上; 在挠性管破裂的情况下，在不移动控制构件的情况下，逻辑元件将至少部分地打开，导致控制阀的至少部分关闭，限制挖掘机的臂的下降速度。

    HYDRAULIC CONTROL SYSTEM FOR CONSTRUCTION MACHINERY
    3.
    发明公开
    HYDRAULIC CONTROL SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开
    水UL UN UN GS。。。。。。。。。

    公开(公告)号：EP2743516A1

    公开(公告)日：2014-06-18

    申请号：EP11870581.3

    申请日：2011-08-09

    申请人： Volvo Construction Equipment AB

    发明人： LEE, Chun-Han

    IPC分类号： F15B13/042 ,  E02F9/22 ,  F15B13/02 ,  F15B13/044 ,  G05G9/047

    CPC分类号： E02F9/2228 ,  E02F9/2296 ,  F15B11/0423 ,  F15B11/055 ,  F15B13/0422 ,  F15B13/0426 ,  Y10T137/87225

    摘要： The present invention relates to a hydraulic control system for construction machinery capable of variably adjusting a set pressure of a relief valve, which controls a set pressure of a hydraulic system, according to a value inputted by means of pressure in the hydraulic system or the manipulation of a joystick. The hydraulic control system comprises: a flow control valve installed in a passage between a hydraulic pump and a hydraulic actuator, for controlling the driving of the hydraulic actuator by being switched by a control signal according to the manipulation of the joystick; a main relief valve installed in a passage between an upstream-side discharge passage of the hydraulic pump and a hydraulic tank, for returning a working fluid to the hydraulic tank when a high load exceeding a set pressure occurs in the system; a pressure controlling means for controlling, either continuously or in stages, a set pressure of the main relief valve; a pressure sensing means for sensing a pressure at a discharge side of the hydraulic pump; and a controller for determining the value inputted by the manipulation of the joystick, and a required set pressure for the relief valve according to the system pressure sensed by the pressure sensing means, and then outputting a control signal to the pressure controlling means to enable a set pressure of the relief valve to be variably adjusted to a determined set pressure.

    摘要翻译： 本发明涉及一种用于工程机械的液压控制系统，其能够根据通过液压系统中的压力或操纵输入的值可变地调节安全阀的设定压力，该安全阀控制液压系统的设定压力 的操纵杆 液压控制系统包括：安装在液压泵和液压致动器之间的通道中的流量控制阀，用于通过根据操纵杆的操纵通过控制信号切换来控制液压致动器的驱动; 安装在液压泵的上游侧排出通道和液压箱之间的通道中的主安全阀，用于当系统中发生超过设定压力的高负载时将工作流体返回到液压箱; 压力控制装置，连续地或分阶段地控制主安全阀的设定压力; 压力检测装置，用于检测液压泵排出侧的压力; 以及控制器，用于根据由压力感测装置感测到的系统压力确定由操纵杆操纵输入的值和安全阀所需的设定压力，然后将控制信号输出到压力控制装置，使得能够 安全阀的设定压力可变地调整到确定的设定压力。

    HYDRAULIC PUMP CONTROL SYSTEM FOR CONSTRUCTION MACHINERY
    4.
    发明公开
    HYDRAULIC PUMP CONTROL SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开
    建筑机械用液压泵控制系统

    公开(公告)号：EP2647850A1

    公开(公告)日：2013-10-09

    申请号：EP10860312.7

    申请日：2010-11-30

    申请人： Volvo Construction Equipment AB

    发明人： KIM, Mi-Ok ,  BANG, Sang-Ho

    IPC分类号： F15B9/08 ,  F15B13/02 ,  E02F9/22

    CPC分类号： F15B15/18 ,  E02F9/123 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B13/0422

    摘要： Disclosed is a hydraulic pump control system for minimising flow loss by optimally limiting the discharge flow volume of the hydraulic pump when an upper swivel body is made to swivel abruptly. The hydraulic pump control system according to the present invention comprises: a swivel motor which is connected to a hydraulic pump; a control spool for the swivel motor, which controls the hydraulic fluid supplied to the swivel motor during switch back by means of a control signal for a remote control valve; an orifice which is provided on the furthest downstream side of a centre bypass pathway; a regulator which controls the angle of inclination of the swash plate of the hydraulic pump; a swivel operation signal detection means which detects a swivel operation signal output from the remote control valve; an electronic proportional pressure reducing valve which outputs a secondary pressure proportional to the detection signal of the swivel operation signal detection means; and a shuttle valve of which the input sides are respectively coupled to the orifice and the electronic proportional pressure reducing valve, and the output side is coupled to the regulator.

    摘要翻译： 公开了一种液压泵控制系统，用于通过在上部旋转体突然旋转时优化地限制液压泵的排出流量来最小化流量损失。 根据本发明的液压泵控制系统包括：旋转马达，其连接到液压泵; 用于回转马达的控制阀芯，其通过用于遥控阀的控制信号来控制在回切期间供应到回转马达的液压流体; 设置在中心旁路通路的最下游侧的节流孔; 调节器，其控制液压泵的斜盘的倾斜角度; 旋转操作信号检测装置，其检测从远程控制阀输出的旋转操作信号; 电子比例减压阀，其输出与旋转操作信号检测装置的检测信号成比例的次级压力; 以及梭阀，其输入侧分别连接到节流孔和电子比例减压阀，并且输出侧连接到调节器。

    WORK MACHINE
    5.
    发明授权
    WORK MACHINE 有权
    工作机器

    公开(公告)号：EP1801424B1

    公开(公告)日：2011-01-26

    申请号：EP05782311.4

    申请日：2005-09-08

    申请人： Hitachi Construction Machinery Co., Ltd.

    发明人： ISHIKAWA, Kouji ., Hitachi Constrct. Machinery Co. Ltd. ,  SHIMAMURA, Tadatoshi , Hitachi Constrct. Machinery Co. Ltd. ,  SATAKE, Hidetoshi , Hitachi Constrct. Machinery Co. Ltd. ,  ARIGA, Nobuei ., Hitachi Constrct. Machinery Co. Ltd.

    IPC分类号： F15B11/08 ,  E02F9/20 ,  E02F9/22

    CPC分类号： F15B21/005 ,  E02F9/2246 ,  E02F9/2285 ,  F15B13/0422 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/7053

    摘要： [PROBLEMS] To provide a work machine comprising a starter for starting a prime mover from the pressure oil in a hydraulic actuator for driving a front work machine can be drained without providing a special hydraulic apparatus. [MEANS FOR SOLVING PROBLEMS] The work machine comprises a boom cylinder (34) for driving a front work machine (35), a flow control valve (8) for controlling the flow of the pressure oil supplied to the boom cylinder (34), and a pilot valve (11) driven by an engine (1) and outputting a pilot operation signal for switching the flow control valve (8) using the pressure oil delivered from a pilot hydraulic pump (10) as the primary pressure. The work machine is further provided with a fuel stop switch (31) performing supply stop control of fuel for driving the engine (1) and a switch (30) for keeping a starter motor (2) for starting the engine (1) in a drivable state depending on fuel supply stop control of the engine (1) by the fuel stop switch (31).

    摘要翻译： 发明内容本发明的目的在于提供一种作业机械，其不需要特别的液压装置，能够排出用于驱动前部作业机械的液压致动器中的用于起动原动机的起动机的作业机械。 解决课题的手段作业机械具备用于驱动前作业机（35）的动臂油缸（34），用于控制向动臂油缸（34）供给的压力油的流量的流量控制阀（8） 以及由发动机（1）驱动的先导阀（11），并且使用从先导液压泵（10）输出的压力油作为主压力输出用于切换流量控制阀（8）的先导操作信号。 作业机械还具备进行用于驱动发动机（1）的燃料的供给停止控制的燃料停止开关（31）和使发动机（1）起动的起动电动机（2）保持为一定状态的开关（30） 根据由燃料停止开关（31）对发动机（1）的燃料供给停止控制来进行驱动。

    Actuation unit for distribution valves
    9.
    发明公开
    Actuation unit for distribution valves 审中-公开
    操作单元阀门

    公开(公告)号：EP1574721A3

    公开(公告)日：2009-02-18

    申请号：EP05101883.6

    申请日：2005-03-10

    申请人： SALAMI S.p.A.

    发明人： Garcea, Rocco ,  Giovanardi, Marco

    IPC分类号： F15B13/042

    CPC分类号： F15B13/0422 ,  F16K31/54 ,  F16K35/00 ,  F16K35/10

    摘要： An actuation unit (1) for distribution valves, comprising: a supporting body (2), which is provided internally with a receptacle (3) that is open at one face (2a) of the body and can be associated with a distribution valve; a transmission stem (4), which is accommodated so that it can move along the receptacle and is provided with a first end, which is arranged at the face (2a) and can be associated with the slider of the distribution valve; means (5) for actuating the rotation of a pivot (6) that is supported rotatably within the supporting body and is arranged substantially transversely to the receptacle; and transmission means (7) for the actuation of the stem with an alternating translational motion, which are interposed between the pivot and the stem and comprise a pinion (8), which is rigidly rotationally associated with the pivot (6) at the receptacle (3), and a rack (9), which engages the pinion (8) and is accommodated so that it can slide along the receptacle and is associated with the stem (4).

    DISPOSITIF DISTRIBUTEUR DE FLUIDE SOUS PRESSION A REGULATION INVERSEE
    10.
    发明授权
    DISPOSITIF DISTRIBUTEUR DE FLUIDE SOUS PRESSION A REGULATION INVERSEE 有权
    药物分销商的流动性压力调节反馈

    公开(公告)号：EP1646791B1

    公开(公告)日：2006-11-08

    申请号：EP04767315.7

    申请日：2004-06-10

    申请人： Bosch Rexroth D.S.I.

    发明人： FERNANDEZ, Antonio ,  LAROZE, Gérard

    IPC分类号： F15B13/043

    CPC分类号： F15B13/0422

    摘要： The inventive reversing control device consists of a body (2) comprising a pressure reducer (3) which is provided with a pusher (5) extending between a head (6) and a leg (7), a distributing channel (10) arranged in the body, an input pipe (21) and an output pipe (22) discharging into the distributing channel (10), a movable plunger (25) provided with a large head (26), a slide valve (30) movably connected to the plunger, a cup (35) coaxially mounted on the plunger and a cup return spring (40). The pusher comprises a through central boring (45), in which the plunger head is movably arranged. A control spring is arranged in the central boring of the pusher between the large head thereof and the cup bottom in such a way that the pusher cavity provokes the release of the control spring and reduction of the controlled pressure value in the output pipe.

    摘要翻译： 本发明的换向控制装置由包括减压器（3）的主体（2）组成，该减压器设有在头部（6）和腿部（7）之间延伸的推动器（5），分配通道（10） 本体，排入分配通道10内的输入管21和输出管22，设有大头26的可动柱塞25，可动柱塞25， 柱塞，同轴地安装在柱塞上的杯子（35）和杯子回位弹簧（40）。 推动器包括贯穿中央钻孔（45），柱塞头可移动地布置在钻孔中。 控制弹簧布置在推进器的大头部和杯底部之间的中心孔内，使得推进器腔体引起控制弹簧的释放和输出管道中的受控压力值的减小。