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    • 1. 发明公开
    • 편로드 유압실린더용 적응 제어식 유압장치
    • 一体式液压缸自适应控制液压装置
    • KR1020120072614A
    • 2012-07-04
    • KR1020100134456
    • 2010-12-24
    • 두산인프라코어 주식회사
    • 안현식
    • F15B13/02E02F9/22F15B11/032F15B15/14E02F3/96B60K7/00
    • F15B13/021B60K7/0015E02F3/961E02F9/2203F15B11/0325F15B15/1409
    • PURPOSE: An adaptive controlled hydraulic device for a single rod hydraulic cylinder is provided to adaptively control the amount of pressure oil supplied to a hydraulic cylinder according as the pressure sizes of a head side and a rod side of the hydraulic cylinder are reversed each other by external load. CONSTITUTION: An adaptive controlled hydraulic device for a single rod hydraulic cylinder(200) comprises a head side manometer(214), a rod side manometer(215), a bidirectional hydraulic motor pump(220), a rod sensor(216), and an adaptive mass flow controller(280). The head side manometer measures the pressure of a head side coming under one side based on a piston(212) inside a driving cylinder(211). The rod side manometer measures the pressure of a rod side coming under the other side based on the piston inside the driving cylinder. The bidirectional hydraulic motor pump supplies pressure oil to the head side or the rod side of the driving cylinder to control the operational speed of a rod(213). The rod sensor measures the moving speed of the rod. The adaptive mass flow controller determines which pressure among the head side and the rod side of the driving cylinder is higher and also determines a moving direction of the rod. If a direction where the pressure is higher is not matched with the moving direction of the rod, the discharge amount of the hydraulic motor pump is controlled so that the amount of the pressure oil supplied to a direction where the pressure is lower can be increased.
    • 目的:提供一种用于单杆液压缸的自适应控制液压装置,用于根据液压缸的头侧和杆侧的压力尺寸相互相反的方式自适应地控制供给到液压缸的压力油的量, 外部负载。 构造:用于单杆液压缸(200)的自适应控制液压装置包括头侧压力计(214),杆侧压力计(215),双向液压马达泵(220),杆传感器(216)和 自适应质量流量控制器(280)。 头侧压力计基于驱动气缸(211)内的活塞(212)来测量在一侧下方的头侧的压力。 杆侧压力计基于驱动气缸内的活塞来测量进入另一侧的杆侧的压力。 双向液压马达泵向驱动缸的头侧或杆侧供给压力油,以控制杆(213)的操作速度。 杆传感器测量杆的移动速度。 自适应质量流量控制器确定驱动气缸的头侧和杆侧之间的压力较高,并且还确定杆的移动方向。 如果压力较高的方向与杆的移动方向不匹配,则可以控制液压马达泵的排出量,使得供给到压力较低的方向的压力油的量可以增加。
    • 2. 发明授权
    • 증압 실린더
    • 加压气缸
    • KR100486847B1
    • 2005-04-29
    • KR1020020088057
    • 2002-12-31
    • 주재석
    • 주재석
    • F15B15/22
    • F15B11/0325F15B2211/214F15B2211/40515F15B2211/40584F15B2211/41536F15B2211/7053
    • 본 발명은 산업 전분야에서 널리 사용하는 공압실린더와 유압실린더의 성능과 출력을 향상시킨 증압실린더에 관한 것으로, 공압식 혹은 유압식으로 동작되는 증압실린더에서 본체의 전/후방에 형성되어 작동피스톤과 가압피스톤을 구동시키는 제 1, 2 작동실에 유압차 혹은 공압차에 의하여 개폐가 제어되는 빠이롯드 밸브를 설치하고, 후방에 형성되어 가압피스톤을 구동하는 제 2작동실에 체크밸브를 더 설치하여, 전진중 저부하시에는 상기 체크밸브와 빠이롯드 밸브가 모두 닫힌 상태를 유지하여 작동피스톤만 전진하도록 하고, 전진중 고부하시에는 체크밸브는 닫히고 빠이롯드 밸브는 유압 혹은 공압에 의하여 열리도록 하여 가압피스톤이 작동피스톤에 힘을 가하도록 하며, 후진시에는 빠이롯드 밸브는 닫히고 체크밸브는 열리면서 유압 혹은 � �압이 제 1, 2 작동실에 모두 주입되도록 하여 작동피스톤과 가압피스톤을 원복시킴으로써 증압실린더의 전/후진을 신속하게 함과 아울러 오동작이 발생하지 않도록 한 것이다.
    • 7. 发明授权
    • 유압식 증압실린더
    • 유압식증압실린더
    • KR100380121B1
    • 2003-04-14
    • KR1020000013031
    • 2000-03-15
    • 주재석
    • 주재석이상석
    • F15B15/22
    • F15B11/0325F15B2211/216F15B2211/775
    • Disclosed is a hydraulic pressure booster cylinder. In a low pressure stroke, in a state wherein a slide piston is positioned close to a third piston, as compressed air is supplied into a second pneumatic chamber, a second piston is moved toward a bore, and thereby the third piston and the slide piston are integrally moved to allow a piston rod to extend out of a cylinder case. In a high pressure stroke, when movement of the second piston is blocked by a load, the slide piston is moved toward a check valve and pushes the check valve in one direction, compressed air flows into a first pneumatic chamber and air existing in the second pneumatic chamber is discharged to the outside, and, by movement of a first piston, a trunk piston portion is moved toward the third piston through the bore while maintaining airtightness.
    • 公开了一种液压增压缸。 在低压行程中,在滑动活塞靠近第三活塞的状态下,随着压缩空气被供给到第二气压室中,第二活塞朝向孔移动,由此第三活塞和滑动活塞 整体移动以允许活塞杆从气缸壳体伸出。 在高压行程中,当第二活塞的运动被负载阻挡时,滑动活塞朝向止回阀移动并且将止回阀沿一个方向推动,压缩空气流入第一气压室并且存在于第二气压室中的空气 气动室被排出到外部,并且通过第一活塞的移动,在维持气密性的同时,筒体活塞部分通过孔朝向第三活塞移动。