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    • 5. 发明申请
    • REVERSIBLE HYDRAULIC PRESSURE CONVERTER EMPLOYING TUBULAR VALVES
    • 可逆式液压变压器使用管状阀
    • US20150053075A1
    • 2015-02-26
    • US14461850
    • 2014-08-18
    • Vianney RABHI
    • Vianney RABHI
    • F15B3/00F03C1/007
    • F15B3/00F03C1/0073F03C1/0076F04B9/113F15B1/024
    • The reversible hydraulic pressure converter (1) employing tubular valves includes a medium-pressure stage (44) consisting of a medium-pressure cylinder (2) and a double-acting medium-pressure piston (3) the position of which is sent to a control computer of the converter (19) by a piston position sensor (14), the cylinder (2) and the piston (3) forming two medium-pressure chambers (5) that can be placed in communication with a medium-pressure inlet-outlet circuit (15) by at least one tubular valve (12), the converter (1) also including two high-pressure cylinders (9) each cooperating with a high-pressure piston (8) of smaller diameter and defining two high-pressure chambers (11) that can be placed in communication with a high-pressure inlet-outlet circuit (16) by at least one tubular valve (12), each of the various tubular valves (12) cooperating with an independent valve actuator (13).
    • 使用管状阀的可逆式液压变换器(1)包括由中压缸(2)和双作用中压活塞(3)组成的中压级(44),其中位置被送至 通过活塞位置传感器(14),转子(19)的控制计算机,气缸(2)和活塞(3)形成两个中压室(5),该中压室可以与中压入口 - 出口回路(15)通过至少一个管状阀(12),转换器(1)还包括两个高压缸(9),每个高压缸(9)与较小直径的高压活塞(8)配合,并限定两个高压 能够通过至少一个管状阀(12)与高压入口 - 出口回路(16)连通的室(11),各个管状阀(12)与独立的阀致动器(13)配合, 。
    • 6. 发明授权
    • Hydraulically operable linear motor
    • 液压可操作的直线电机
    • US4020746A
    • 1977-05-03
    • US637465
    • 1975-12-03
    • Friedrich Karl Arndt
    • Friedrich Karl Arndt
    • F15B11/15F01L25/06F03C1/007F01L25/04F01B7/18
    • F03C1/0073F01L25/066
    • A hydraulically operable linear motor with a double-acting reciprocable piston in a cylinder, in which one side of the piston has connected thereto a piston rod so as to form with this one side an annular piston surface which is continuously exposed to a desired working pressure. The other side of the piston is by means of a hydraulically actuated control valve alternately exposed to the working pressure and to the pressure in an exhaust conduit. The pressure for actuating the valve spool of the control valve is generated in a conduit section which communicates with two annular grooves in the two cylinder sections separated from each other by the piston and adapted alternately to be closed off from the above mentioned conduit section. This conduit section communicates through throttles with the exhaust conduit. The annular groove located in that cylinder section which is defined by the annular piston surface and the cylinder end wall faced thereby communicates through a preloaded check valve with the exhaust conduit.
    • 一种在液压缸中具有双作用往复活塞的液压可操作的直线电动机,其中活塞的一侧连接有活塞杆,以便在该一侧形成连续暴露于所需工作压力的环形活塞表面 。 活塞的另一侧是通过液压致动的控制阀交替地暴露于工作压力和排气管道中的压力。 用于致动控制阀的阀芯的压力是在与两个气缸部分中的两个环形槽连通的管道部分中产生的,该两个环形槽通过活塞彼此分开,并交替地与上述管道部分封闭。 该导管部分通过节流阀与排气导管连通。 由环形活塞表面和面向的气缸端壁限定的位于该气缸部分的环形槽通过预先安装的止回阀与排气导管连通。
    • 7. 发明授权
    • Hydraulic operated rock drilling apparatus
    • 液压操作凿岩机
    • US4006783A
    • 1977-02-08
    • US558688
    • 1975-03-17
    • Sven Granholm
    • Sven Granholm
    • B23B47/22B25D9/14B25D9/26E21B1/26E21B6/00F01L25/06F03C1/007E21C3/20
    • F01L25/066B25D9/145B25D9/26E21B6/00F03C1/007F03C1/0073
    • A rock drilling apparatus comprises a hydraulically rotated drill, a percussion motor having a piston which transfers impact energy to the drill, the piston defining together with the machine housing first and second pressure chambers for receiving pressure liquid to move the piston, the percussion motor having a hydraulic circuit including a high pressure side and a low pressure side, a pressure liquid distributing valve having a control input for receiving a control pressure, the distributing valve being located in the hydraulic circuit of the percussion motor for alternately connecting at least one of the pressure chambers to the high pressure side and low pressure side, respectively, of the hydraulic circuit in response to the control pressure, the hydraulic circuit for rotating the drill being separate from the hydraulic circuit of the percussion motor and including a high pressure side and a low pressure side separate from the high and low pressure sides of the percussion motor, a control valve for controlling the control pressure in response to the pressure at the high pressure side of said rotary motor.
    • 一种凿岩装置包括液压旋转的钻头,具有活塞的打击乐马达,所述活塞将撞击能量传递到钻头,所述活塞与所述机器壳体一起限定第一和第二压力室,用于接收压力液体以移动所述活塞,所述冲击马达具有 包括高压侧和低压侧的液压回路,具有用于接收控制压力的控制输入的压力液体分配阀,分配阀位于冲击电动机的液压回路中,用于交替地连接至少一个 压力室分别响应于控制压力分配到液压回路的高压侧和低压侧,用于使钻头旋转的液压回路与冲击马达的液压回路分离,并包括高压侧和 低压侧与冲击电机的高低压侧分开, 用于响应于所述旋转电动机的高压侧的压力来控制控制压力的控制阀。