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228 条记录 (耗时 0.011 秒)

    A hydraulically operated impact device
    32.
    发明公开
    A hydraulically operated impact device 失效
    撞击式液压装置。

    公开(公告)号：EP0035005A1

    公开(公告)日：1981-09-02

    申请号：EP81850021.7

    申请日：1981-02-10

    申请人： Atlas Copco Aktiebolag

    发明人： Eklöf, Ake Torsten

    IPC分类号： E21C3/20

    CPC分类号： B25D9/12 ,  B25D9/26 ,  B25D2250/371

    摘要： In a hydraulic rock drill the valve (27) is controlled by two control lines (37,42) that each has a plurality of branches with ports (38,41) and (43-46) into the cylinder.
    Avalving pin (48) is slidable in a bore that intersects all the branches (38-41), (43-46) of both control lines (37,42) and, by axially displacing the pin (48), the operator can pre-select the stroke length and thereby the impact energy per blow.

    Liquid-injected compressor device
    34.
    发明公开
    Liquid-injected compressor device 失效
    Kompressoranlage mitFlüssigkeitseinspritzung。

    公开(公告)号：EP0007295A2

    公开(公告)日：1980-01-23

    申请号：EP79850063.3

    申请日：1979-06-26

    申请人： Atlas Copco Aktiebolag

    发明人： van Oorschot, Gosewinus Franciscus ,  Emanuelsson, Kaj Bengt Ingemar

    IPC分类号： F04C29/04

    CPC分类号： F04C29/0014 ,  Y10S418/01

    摘要： A liquid-injected compressor device for avoiding condensation of moisture in the outlet of a comprossor is disclosed. The device comprises a control valve which is sctu- sted in opposite directions by two sensors. One of the aensors senses the inlet temperature of the compressor and the other the outlet temperature. A constant temperature difference is maintained between the inlet and outlet of the compressor.

    摘要翻译： 公开了一种用于避免压缩机出口中的水分冷凝的液体注入压缩机装置。 该装置包括通过两个传感器在相反方向致动的控制阀。 其中一个传感器检测压缩机的入口温度，另一个检测出口温度。 在压缩机的入口和出口之间保持恒定的温差。

    A drill boom arrangement
    35.
    发明公开
    A drill boom arrangement 失效
    钻杆布置

    公开(公告)号：EP0004837A2

    公开(公告)日：1979-10-17

    申请号：EP79850025.2

    申请日：1979-04-11

    申请人： Atlas Copco Aktiebolag

    发明人： Kimber, Erich Voldemar ,  Hökby, Nils

    IPC分类号： E21C11/00

    CPC分类号： E21B7/025

    摘要： A hydraulic drill boom arrangement for drifting and tunnelling comprises a boom proper (10) that is universally pivotably carried by a support plate (13) and carries a feed beam (40) for a rock drill (41) at its outer end. Two hydraulic cylinders (16,17) are coupled between the support plate and the boom and located on each side of the boom so that both cylinders are loaded by the weight of the boom, which makes the boom very stable in all positions.

    摘要翻译： 一种用于漂移和掘进的液压钻杆悬臂装置包括一个由支撑板（13）可摆动地支承并且在其外端承载用于凿岩机（41）的进给梁（40）的悬臂本体（10）。 两个液压缸（16,17）连接在支撑板和悬臂之间并位于悬臂的两侧，使得两个缸体通过悬臂的重量加载，这使得悬臂在所有位置都非常稳定。

    Hydraulic torque impulse generator
    37.
    发明公开
    Hydraulic torque impulse generator 失效
    液压扭矩发生器

    公开(公告)号：EP0267169A3

    公开(公告)日：1989-07-12

    申请号：EP87850296.2

    申请日：1987-10-02

    申请人： Atlas Copco Aktiebolag

    发明人： Schoeps, Knut Christian

    IPC分类号： B25B21/02

    CPC分类号： B25B21/02

    摘要： A hydraulic torque impulse generator comprises a drive member (10) drivingly connected to rotation motor and including a cylindrical fluid chamber (11) which is partly defined by a circumferential wall (23) of a non-constant radius, a output spindle (12) rotatably supported in a coaxial relationship with said drive member (10) and comprising a rear portion (13) which extends into said fluid chamber (11) and which has two radial slots (29, 30) in which seal rollers (27, 28) are radially movable. The drive member (10) has a rear end wall (20) which is formed with a forwardly extending hub portion (25) on which is rigidly attached a cam element(26) for positive engagement with the seal rollers (27,28) to move the latters outwardly toward the fluid chamber wall (23) during rotation of said drive member (10) relative to said output spindle (12).

    Seal means for a cylindrical type slide valve
    39.
    发明公开
    Seal means for a cylindrical type slide valve 失效
    用于圆柱型滑阀的密封装置

    公开(公告)号：EP0269597A3

    公开(公告)日：1989-03-22

    申请号：EP87850364.8

    申请日：1987-11-24

    申请人： Atlas Copco Aktiebolag

    发明人： Carlsson, Sven Rune Egon ,  Blomqvist, Per Claes Arne

    IPC分类号： F16K11/07

    CPC分类号： F16K11/0712 ,  F16K11/07

    摘要： A seal means for a cylindrical type slide valve in which the valve element (14) is arranged to control one or more fluid flow ports in a valve housing (10) comprises a number of O-rings (24-29) mounted in circumferential grooves on the valve element (14) and a thin-walled plastic sleeve (31/) mounted by shrinking on said valve element (14). The sleeve (31) assumes substantially the same outer contour as the valve element (14) and the O-rings (24-29) had before the sleeve (31) was mounted. The sleeve consists of a autocrosslinkable high density polyethylene with self-lubricating properties.