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    Control device of variable capacity type pump
    73.
    发明专利
    Control device of variable capacity type pump 失效
    可变容量型泵的控制装置

    公开(公告)号：JPS593187A

    公开(公告)日：1984-01-09

    申请号：JP11072282

    申请日：1982-06-29

    Applicant: Komatsu Ltd

    Inventor： AKIYAMA TERUO

    IPC: E02F9/22 ,  F04B49/00 ,  F04B49/08

    CPC classification number: F04B49/002 ,  E02F9/2239 ,  E02F9/2292 ,  E02F9/2296 ,  F04B49/08 ,  F04B2201/1204

    Abstract: PURPOSE:To enable a pump swash plate angle to be precisely controlled by allowing pump discharge pressure and control pressure to be applied to the input signal part of a hydraulic servo as piston position displacement. CONSTITUTION:When an arm 37 is displaced clockwise taking a pin 39 as a fulcrum, a spool 38 is again returned in the direction toward the original position, and a servo piston 30 is displaced until said spool 38 returns to the original position to permit a port 72-b to be again blocked. Then, a left side chamber 74 is communicated with a case drain 94 through a passage 73, a port 72-a, and the passage 38-a of the spool 38. Namely, the servo piston 30 is displaced in response to reducing valve output pressure, and a pump is inclined from a minimum swash plate angle position to a position corresponding to the reducing valve output pressure. When said reducing valve output pressure further rises, the left end of a spring seat 43 touches the right end of a spring seat 42 to permit a spring 40 to begin to bend, and at that time a relation between the reducing valve output pressure and the pump swash plate angle is determined in terms of the spring constant.

    Abstract translation: 目的：通过允许泵排出压力和控制压力作为活塞位置位移施加到液压伺服的输入信号部分，使泵斜盘角度得到精确控制。 构成：当臂37以销39为支点顺时针移动时，卷轴38再次朝向原始位置的方向返回，并且伺服活塞30移位，直到所述卷轴38返回到原始位置，以允许 端口72-b再次被阻塞。 然后，左侧室74通过通道73，端口72-a和阀芯38的通道38-a与壳体排出口94连通。即，伺服活塞30响应于减小阀输出而移位 压力，并且泵从最小斜盘角位置倾斜到对应于减压阀输出压力的位置。 当所述减压阀输出压力进一步上升时，弹簧座43的左端接触弹簧座42的右端，以允许弹簧40开始弯曲，此时减压阀输出压力与 泵的斜盘角是根据弹簧常数确定的。

    이송량 제어시스템이 있는 고점도 펌프
    75.
    发明公开
    이송량 제어시스템이 있는 고점도 펌프 有权
    包括运输能力控制系统的厚泵

    公开(公告)号：KR1020050033531A

    公开(公告)日：2005-04-12

    申请号：KR1020047005347

    申请日：2002-10-04

    Applicant: 푸츠마이스터 콘크리트 펌프스 게엠베하

    Inventor： 벤커트,하르트무트 ,  폰베우멘,파울 ,  페트졸트,볼프-미카엘

    IPC: F04B49/06

    CPC classification number: F04B49/065 ,  F04B15/02 ,  F04B2201/1204 ,  F04B2201/1205 ,  F04B2203/0209 ,  F04B2203/0605 ,  Y10S417/90

    Abstract: The invention relates to a thick matter pump comprising a transport capacity control system. Said thick matter pump comprises a driving motor (50) which is preferably embodied as an internal combustion engine, a hydraulic pump (6) which is preferably embodied as a reversible pump, has a variable displacement volume (V) and can be coupled to the driving motor, and two hydraulic cylinders (5, 5') which are connected to the hydraulic pump (6), can be controlled by the same in a push-pull manner, and are each coupled to a transport cylinder (7, 7') for transporting the thick matter. A regulator for regulating the rotational speed (N) is associated with the driving motor (50), and a regulating element (18, 20) for regulating the displacement volume (V) is associated with the hydraulic pump (6). A control unit (54) is also provided for regulating the rotational speed (N) of the motor and the displacement volume (V). According to the invention, said control unit (54) comprises a regulating body (56) for regulating the thick matter transport capacity (F) of the transport cylinders (7, 7'), and an electronic control system (108) which reacts to the position of the regulating body (56) and allocates a nominal value to the rotational speed regulator and to the displacement volume actuator (20), in a software-assisted manner. These measures enable the operational comfort of the thick matter pump to be improved, and the fuel requirements, noise emission and waste gas emission to be reduced during practical use.

    Abstract translation: 本发明涉及一种包括运输能力控制系统的厚物质泵。 所述厚物质泵包括优选地被实施为内燃机的驱动电动机（50），优选地被实施为可逆泵的液压泵（6）具有可变容量（V）并且可以耦合到 驱动马达和与液压泵（6）连接的两个液压缸（5,5'）能够以推挽方式由其进行控制，并且各自联接到运输气缸（7,7'）， ）用于运输厚厚的物质。 用于调节转速（N）的调节器与驱动马达（50）相关联，并且用于调节排量（V）的调节元件（18,20）与液压泵（6）相关联。 还设置有用于调节电机的转速（N）和排量（V）的控制单元（54）。 根据本发明，所述控制单元（54）包括用于调节运输气缸（7,7'）的厚物质输送能力（F）的调节体（56）和一个电子控制系统（108） 调节体（56）的位置，并以软件辅助的方式为转速调节器和位移体积致动器（20）分配标称值。 这些措施可以提高厚料泵的运行舒适度，实际使用中要减少燃油要求，噪音排放和废气排放。

    가변용량형 유압피스톤 펌프의 유량제어장치
    76.
    发明授权
    가변용량형 유압피스톤 펌프의 유량제어장치 失效
    木板泵

    公开(公告)号：KR1019950013009B1

    公开(公告)日：1995-10-24

    申请号：KR1019930001848

    申请日：1993-02-11

    Applicant: 대우중공업(주)

    Inventor： 김영국 ,  김태종

    IPC: F04B1/14

    CPC classification number: F04B49/002 ,  F04B1/324 ,  F04B49/08 ,  F04B2201/1204

    Abstract: The regulator is provided with a hydraulic servo controller capable of controlling the displacement volume of the pump and accomplishing a feedback function. The flow rate of the fluid is controlled by varying the angle of the swash plate. A servo-piston is pivotally mounted to the swash plate. The feedback function is dependent upon the working pressure from the pump, an effective spring force and a pilot pressure. The regulator is provided for variable displacement pump having simplified structure by eliminating linking mechanism which is capable of accomplishing stable flow rate control and reducing energy loss.

    Abstract translation: 该调节器具有能够控制泵的排量并实现反馈功能的液压伺服控制器。 通过改变旋转斜盘的角度来控制流体的流速。 伺服活塞枢转安装在斜盘上。 反馈功能取决于泵的工作压力，有效的弹簧力和先导压力。 通过消除能够实现稳定流量控制和减少能量损失的连接机构，为变量泵提供了具有简化结构的调节器。

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