具有输送量控制的泥浆泵

    公开(公告)号:CN1571886A

    公开(公告)日:2005-01-26

    申请号:CN02820594.4

    申请日:2002-10-04

    Abstract: 本发明涉及一种控制输送量的泥浆泵。泥浆泵有一个优选地设计为内燃机的驱动马达(50)、一台可驱动马达(50)连接优选地设计为可逆泵且其置换容积(V)可变的液压泵(6)、以及两个与液压泵(6)连接且可通过它们按推挽式控制并分别与一个泥浆输送缸(7、7′)连接的液压缸(5、5′)。为驱动马达(50)配设一个调整转速(N)的调节器,而为液压泵(6)配设一个调整置换容积(V)的调节机构(18、20)。此外,设一个用于调整马达转速(N)和置换容积(V)的控制装置(54)。按本发明控制装置(54)有一个用于调整输送缸(7、7′)的泥浆输送量(F)的调整机构(56)和一个响应调整机构(56)的位置、用于为转速调节器和置换容积调节机构(20)在软件支持下给定额定值(N、V)的电子控制系统(108)。采取这些措施达到改善泥浆泵的操作舒适性和在实际使用时减小燃料消耗量和噪声以及废气排放。

    Power management control system for a hydraulic work machine
    14.
    发明授权
    Power management control system for a hydraulic work machine 失效
    液压作业机电源管理控制系统

    公开(公告)号:US5967756A

    公开(公告)日:1999-10-19

    申请号:US886727

    申请日:1997-07-01

    Abstract: An apparatus for controlling an electrohydraulic system of a work machine having an engine that drives a variable displacement pump is disclosed. A pump displacement setting device produces a pump command signal indicative of a desired displacement of the variable displacement pump. An engine speed setting device produces an engine command signal indicative of a desired rotational speed of the engine. A power manager receives the pump and engine command signals, determines an efficient engine speed and pump displacement, and produces an engine control signal that decreases the engine speed to the efficient engine speed and a pump control signal that increases the pump displacement to an efficient pump displacement, while maintaining a substantially constant pump flow rate.

    Abstract translation: 公开了一种用于控制具有驱动变排量泵的发动机的作业机械的电动液压系统的装置。 泵位移设定装置产生指示可变排量泵的期望位移的泵指令信号。 发动机转速设定装置产生指示发动机的期望转速的发动机指令信号。 功率管理器接收泵和发动机指令信号,确定有效的发动机转速和泵排量,并且产生将发动机转速降低到有效的发动机转速的发动机控制信号以及将泵排量增加到高效泵的泵控制信号 同时保持基本恒定的泵流量。

    Control device for variable hydraulic machines
    15.
    发明授权
    Control device for variable hydraulic machines 失效
    可变液压机控制装置

    公开(公告)号:US5881629A

    公开(公告)日:1999-03-16

    申请号:US808236

    申请日:1997-02-28

    Abstract: A control device for variable hydraulic machines, and specifically for variable axial piston machines equipped with a servo system that is connected to a swash plate so that the discharge/displacement volume is infinitely variable. The hydraulic machine is equipped with a sensor that detects the piston displacement and is connected with an electronical control unit that controls the swash angle position of the swash plate and is pressure controlling the servo system by an electrohydraulic converter. A method for the infinite controlling of the volume flow of hydraulic machines, by which the servo system is connected to the swash plate of the hydraulic machine, and by which a conduction of a signal from a sensor to the control unit, a pressure controlling of the servo system by an electrohydraulic converter as well as the controlling of the swash angle position of the swash plate by the electronical control unit is realized.

    Abstract translation: 一种用于可变液压机的控制装置,特别是用于可变轴向活塞机,其配备有连接到斜盘的伺服系统,使得排放/排出体积是无限可变的。 液压机配备有检测活塞位移的传感器,并且与控制斜盘的斜角位置的电子控制单元连接,并通过电动液压转换器对伺服系统进行压力控制。 一种用于无限制地控制液压机的体积流量的方法,通过该方法伺服系统连接到液压机的斜盘,并且通过该方法将传感器的信号传导到控制单元,压力控制 通过电动液压转换器的伺服系统以及通过电子控制单元控制斜盘的斜角位置被实现。

    VERSCHIEBBARE HYDRAULISCHE LEISTUNGS- BZW. MOMENTENREGELEINRICHTUNG
    17.
    发明授权
    VERSCHIEBBARE HYDRAULISCHE LEISTUNGS- BZW. MOMENTENREGELEINRICHTUNG 失效
    滑动液压动力OR 力矩控制装置

    公开(公告)号:EP0826110B1

    公开(公告)日:1999-01-27

    申请号:EP96919743.3

    申请日:1996-05-09

    CPC classification number: F04B49/08 F04B2201/1204 F04B2205/08

    Abstract: The invention concerns an output and moment regulation device for an adjustable hydraulic pump (1) with a hydraulic servo setter for the continuous adjustment of the delivery rate. Adjustment of the delivery rate is dependent on the delivery pressure of the hydraulic pump (1) in a delivery pressure line (10) and an actuating pressure in a control line (12), and the setter is provided with a spring (4) which forces a pump regulating member (3) in the direction of maximum delivery rate and with at least one piston (6) which acts on the pump regulating member (3) in the direction of delivery rate reduction. The piston face can be subjected via a hydraulically operated control valve (8) to the feed pressure, or is connected to a discharge (19), the control valve (8) is actuated by actuating pressure in the control line (12), and a moment valve (17) is provided whose closure force is set by a metering spring arrangement (18) connected to the pump regulating member (3) and pre-stressed in accordance with the delivery pressure setting; and the moment valve (17) connects the control line (12) to the discharge (19) in accordance with the control pressure in the control line (12) and the pre-stress in the metering spring arrangement (18); and the control line (12) which branches off from the operating pressure line (15) of the pump is provided with an adjustable choke device (13) for adjusting the control pressure acting on the control valve (8) and moment valve (17), specifically, on the closure members thereof.

    HYDRAULISCHER STEUERVENTILBLOCK
    18.
    发明公开
    HYDRAULISCHER STEUERVENTILBLOCK 失效
    水力控制阀块

    公开(公告)号:EP0717817A1

    公开(公告)日:1996-06-26

    申请号:EP94926905.0

    申请日:1994-08-29

    Abstract: A standard hydraulic control valve block has a first control valve (2) and a second control valve (3) that co-operates with the first control valve and communicates therewith through hydraulic medium lines (28-31, 33). The second control valve (3) has a valve piston (5) controlled on the one hand by a hydraulic control pressure in a pressure chamber (25) and on the other hand by a spring pressure part (7). In order to simplify the construction and mounting of the control valve block without affecting its operation and using a remote controlled seat valve, an additional hydraulic medium line (36) is designed in the control valve block and the spring pressure part (7) of the second control valve (3) is replaced by an electrically controlled seat valve (60.1; 60.2). The seat valve (60.1; 60.2) has an electromechanical control part (66.1; 66.2) and at least two hydraulic connections (63.1; 64.1) that act as a valve inlet (63) and a valve outlet (64.1; 64.2). The valve piston (5) of the second control valve (3) is at rest so that one (64.1; 64.2) of both hydraulic connections (63, 64.1; 64.2) of the seat valve (60.1; 60.2) is at the same time connected to an available hydraulic connection (T) and the other hydraulic connection (63) is connected to the additional hydraulic medium line (36).

    SLIDING HYDRAULIC OUTPUT AND MOMENT REGULATION DEVICE
    19.
    发明申请
    SLIDING HYDRAULIC OUTPUT AND MOMENT REGULATION DEVICE 审中-公开
    滑动液压动力OR 力矩控制装置

    公开(公告)号:WO1996036813A1

    公开(公告)日:1996-11-21

    申请号:PCT/EP1996001970

    申请日:1996-05-09

    CPC classification number: F04B49/08 F04B2201/1204 F04B2205/08

    Abstract: The invention concerns an output and moment regulation device for an adjustable hydraulic pump (1) with a hydraulic servo setter for the continuous adjustment of the delivery rate. Adjustment of the delivery rate is dependent on the delivery pressure of the hydraulic pump (1) in a delivery pressure line (10) and an actuating pressure in a control line (12), and the setter is provided with a spring (4) which forces a pump regulating member (3) in the direction of maximum delivery rate and with at least one piston (6) which acts on the pump regulating member (3) in the direction of delivery rate reduction. The piston face can be subjected via a hydraulically operated control valve (8) to the feed pressure, or is connected to a discharge (19), the control valve (8) is actuated by actuating pressure in the control line (12), and a moment valve (17) is provided whose closure force is set by a metering spring arrangement (18) connected to the pump regulating member (3) and pre-stressed in accordance with the delivery pressure setting; and the moment valve (17) connects the control line (12) to the discharge (19) in accordance with the control pressure in the control line (12) and the pre-stress in the metering spring arrangement (18); and the control line (12) which branches off from the operating pressure line (15) of the pump is provided with an adjustable choke device (13) for adjusting the control pressure acting on the control valve (8) and moment valve (17), specifically, on the closure members thereof.

    Abstract translation: 本发明涉及一种动力或力矩调节装置用于可调节液压泵(1)具有用于泵排出流量的无级调节的液压伺服致动器,其中,所述流量调整作为液压泵的输送压力的函数(1)的输送压力管线(10)和一个控制压力 在控制线(12)和具有在最大输送速率弹簧的方向的泵送致动器(3)交替致动装置(4)确定和(3)上在还原递送速率活塞(6),其活塞面积上的方向作用的泵致动器的至少一个 液压致动的控制阀(8)被连接到进料压力或漏极(19)采取行动,和所述控制阀(8)的方法通过在控制线(12)的控制压力,由此提供了一种时刻阀(17),其致动 关闭测量弹簧布置的力(18)被确定,D IE被连接到所述泵的致动器(3)和在所述流量设定依赖性被偏压,并且其中,所述扭矩阀(17)响应于在所述控制线(12)的控制压力的控制线(12)和测量弹簧装置(18)的偏压与 出口(19),和所述用于控制阀的调节泵控制线(12),一个可调节的节流装置(13)的工作压力管路(15)分支(8)的时刻和阀(17)或它们的Schliessglieder作用控制压力 布置。

    CAPACITY CONTROLLER OF VARIABLE CAPACITY HYDRAULIC PUMP
    20.
    发明申请
    CAPACITY CONTROLLER OF VARIABLE CAPACITY HYDRAULIC PUMP 审中-公开
    可变容量液压泵的容量控制器

    公开(公告)号:WO1996008652A1

    公开(公告)日:1996-03-21

    申请号:PCT/JP1995001839

    申请日:1995-09-14

    Inventor: KOMATSU LTD.

    CPC classification number: F04B49/002 F04B49/08 F04B2201/1204 F04B2205/08

    Abstract: A capacitor controller of a variable capacity hydraulic pump comprising a capacity control cylinder (6) including a capacity control piston (6a) for driving a capacity control member (5) of a variable capacity hydraulic pump, and a large diameter chamber (7) and a small diameter chamber (10) disposed on both sides of the capacity control piston (6a), for driving the capacity control piston (6a) in a capacity decreasing direction by a pressure oil supplied to the large diameter chamber (7) and driving the capacity control piston (6a) in a capacity increasing direction by the pressure oil supplied to the small diameter chamber (10), a passage allowing the small diameter chamber (10) to communicate with a pump exhaust path (2), at least one control valve (8, 9) for controlling the capacity of the variable capacity pump by selectively allowing the large diameter chamber (7) to communicate with the pump exhaust passage (2) or with a tank (56), and a variable throttle valve (30) disposed in a passage which allows the large diameter chamber (7) to communicate with the pump exhaust passage (2) or with the tank (56), and controlling the flow of the pressure oil supplied to, or flowing out from, the large diameter chamber (7), wherein the variable throttle valve (30) can be switched between a first state where the throttle open area is inversely proportional to the self exhaust pressure of the pump exhaust passage (2) and a second state where the throttle open area is set to a predetermined open area by an external signal irrespective of the self exhaust pressure.

    Abstract translation: 一种可变容量液压泵的电容器控制器,包括容量控制缸(6),容量控制缸(6)包括用于驱动可变容量液压泵的容量控制构件(5)的容量控制活塞(6a)和大直径室(7),以及 设置在容量控制活塞(6a)的两侧的小直径室(10),用于通过供给到大直径室(7)的压力油沿容积减小方向驱动容量控制活塞(6a),并驱动 容量控制活塞(6a)通过供给到小直径室(10)的压力油在容量增加方向上,允许小直径室(10)与泵排气路径(2)连通的通道,至少一个控制 阀(8,9),用于通过选择性地允许大直径腔室(7)与泵排气通道(2)或罐(56)连通,以及可变节流阀(30)来控制可变容量泵的容量 ) 允许大直径室(7)与泵排气通道(2)或罐(56)连通的通道,并且控制供应到大直径室(或从其流出)的压力油的流动 7),其中所述可变节流阀(30)可以在所述节气门开度与所述泵排气通道(2)的自排气压力成反比的第一状态和设定所述节气门开度区域的第二状态之间切换 通过外部信号到达预定的开放区域,而与自身排气压力无关。

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