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    • 1. 发明授权
    • Valve arrangement
    • 阀门布置
    • US06398181B1
    • 2002-06-04
    • US09460788
    • 1999-12-14
    • Michael DettmersWolfgang KobowWerner Reinelt
    • Michael DettmersWolfgang KobowWerner Reinelt
    • F16K3112
    • F15B13/043E21D23/16F15B1/02F15B11/16F15B2211/212F15B2211/30505F15B2211/30525F15B2211/3057F15B2211/329F15B2211/50518F15B2211/5152F15B2211/555F15B2211/6355F15B2211/71F15B2211/8633F15B2211/8757
    • A valve arrangement (10) for hydraulically actuated machinery installations, especially for powered support assemblies in underground mining, with hydraulically actuated working valves (12, 13, 14) to control hydraulic cylinders (11) or other hydraulically actuated machinery units of the machinery installation and with pilot valves (15) controlling the working valves. In order to avoid the pilot valves (15) and working valves (12, 13, 14) entering an unstable operating condition in the event of a falling off of pressure in the hydraulic fluid supply to the valves, and opening and closing in an uncontrollable and undesired manner, the pilot valves (15) are attached to their own pressure medium supply (17), separate or separable from the hydraulic fluid supply (20) to the working valves (12, 13, 14), so that pressure variations in the hydraulic fluid supply circuit do not affect the pressure medium for the switching of the working valves (12, 13, 14), but the pressure in them is maintained largely constant.
    • 一种用于液压致动机械设备的阀门装置(10),特别是用于地下采矿中的动力支撑组件,具有用于控制液压缸(11)或机械设备的其他液压致动机械单元的液压致动工作阀(12,13,14) 以及控制工作阀的先导阀(15)。 为了避免先导阀(15)和工作阀(12,13,14)在液压油向阀门供应的压力下降时进入不稳定运行状态,以及不可控制的开启和关闭 并且不期望的方式,先导阀(15)附接到它们自己的压力介质供应(17),与液压流体供应(20)分离或分离到工作阀(12,13,14),使得压力变化 液压流体供应回路不影响用于切换工作阀(12,13,14)的压力介质,但是它们中的压力保持在很大程度上恒定。
    • 3. 发明授权
    • Hydraulically trippable check valve for underground mine support
hydraulics
    • 液压可跳闸止回阀,用于地下矿井支持液压
    • US6073654A
    • 2000-06-13
    • US276348
    • 1999-03-25
    • Michael DettmersWolfgang KobowWerner Reinelt
    • Michael DettmersWolfgang KobowWerner Reinelt
    • F16K15/02E21D15/51F15B13/01F16K15/18
    • F15B13/015E21D15/512F16K15/186Y10T137/86944Y10T137/86984
    • The body (1) of the hydraulically trippable check valve for mine support hydraulics according to the invention contains: a valve poppet (13) biased in the closing direction by a spring (22); a control piston (17) which can be acted on by a hydraulic control pressure, causing the poppet (13) to be lifted off its seat (11); and an initial relief valve (20, 21) which can be tripped by the control piston (17) against its spring closing force. Matters are arranged so that the control piston (17) which can be acted on by the hydraulic control pressure is dimensioned in terms of piston surface area (17') so that the poppet (13) of the check valve cannot be lifted off its seat (11) until the opening of the initial relief valve has caused a predetermined initial relief of operating pressure on the high-pressure side. The result is a hydraulically pilot-controlled check valve which has high operational reliability and in which harmful oscillation or chatter of the valve poppet (13) of the check valve and/or control piston (17) cannot occur.
    • 根据本发明的用于矿井支撑液压的液压可跳闸止回阀的主体(1)包括:通过弹簧(22)沿关闭方向偏置的阀提升阀(13); 控制活塞(17),其能够通过液压控制压力作用,使提升阀(13)从其座椅(11)上提起; 和能够被控制活塞(17)克服其弹簧关闭力而跳闸的初始安全阀(20,21)。 物品被布置成使得能够通过液压控制压力起作用的控制活塞(17)的尺寸根据活塞表面积(17')来确定,使得止回阀的提升阀(13)不能从其座椅上提起 (11),直到初始安全阀的打开已经使高压侧的操作压力达到预定的初始释放。 结果是液压先导控制止回阀,其具有高操作可靠性,并且其中不能发生止回阀和/或控制活塞(17)的阀提升阀(13)的有害振荡或颤动。
    • 7. 发明授权
    • Hydraulic shield support
    • 液压屏蔽支架
    • US07237983B2
    • 2007-07-03
    • US10874081
    • 2004-06-22
    • Franz-Heinrich SuilmannFriedrich Wilhelm DannehlMichael DettmersWerner Reinelt
    • Franz-Heinrich SuilmannFriedrich Wilhelm DannehlMichael DettmersWerner Reinelt
    • E21D23/16
    • E21D23/0418E21D23/16
    • A hydraulic shield support is disclosed with at least two adjustable-length hydraulic props supporting a dedicated shield, which are connected through a control bank to a hydraulic fluid supply and borne on base shoes, and to which a pressure in excess of the pressure of the hydraulic fluid may be applied in the set condition of the shield support. In order to provide almost any pressure level at each shield support at a deep face in a simple way, the shield support has at least one pressure intensifier located in a hydraulic pipe system between the hydraulic fluid supply and the hydraulic props, with an oscillating intensifier piston in the form a differential piston effecting the increase in pressure. The low pressure inlet of the pressure intensifier is connected to the setting pressure pipes upstream, and its high-pressure outlet downstream, of a hydraulically-releasable non-return valve.
    • 公开了一种液压屏蔽支架,其具有支撑专用屏蔽的至少两个可调节长度的液压支柱,其通过控制组连接到液压流体供应并承载在底座上,并且压力超过 可以在屏蔽支架的设定状态下施加液压流体。 为了以简单的方式在每个屏蔽支撑件处提供几乎任何的压力水平,屏蔽支架具有至少一个位于液压管道系统中的压力增压器,位于液压流体供应和液压支柱之间,并具有振荡增强器 活塞形成差压活塞,影响压力的增加。 压力增压器的低压入口连接到液压可释放止回阀上游的设定压力管道及其下游的高压出口。
    • 8. 发明申请
    • Valve for hydraulic props of shield-type support frames, and shield-type support frame
    • 屏蔽式支撑框架液压支架阀,屏蔽型支架
    • US20060213363A1
    • 2006-09-28
    • US10551932
    • 2004-05-05
    • Michael DettmersBernd Peters
    • Michael DettmersBernd Peters
    • F15B13/04
    • F15B13/0807E21D23/16F15B13/015F15B13/0832F15B15/149
    • The invention relates to a valve 120, especially a check valve, for hydraulic plungers (3) of shield-type support frames in underground mining with a valve housing 121 and a switchable valve insert received therein, connections 126-129 for high pressure lines connected to the cylinder chamber and/or the annular space of the hydraulic cylinder 3, and at least one connection 30 for an additional unit such as a pressure relief valve, a pressure sensor, and/or a pressure display. The valve housing 121 can be mounted to the hydraulic cylinder 3, and in the mounting stage, the connections 125-129 on the valve housing 121 extend axially parallel to the axis of the hydraulic plunger 3. According to an advantageous further embodiment, the valve housing can be provided with at least one fastening means for an extension housing 40 that can be mounted in a releasable manner to at least one side wall 22B thereof for additional hydraulic functions of the shield-type support frame (see FIG. 2).
    • 本发明涉及一种用于地下采矿中的屏蔽型支撑框架的液压柱塞(3)的阀门120,特别是止回阀,其具有阀壳体121和容纳在其中的可切换阀门插件,用于连接高压管线的连接件126-129 到液压缸3的气缸室和/或环形空间,以及用于附加单元的至少一个连接件30,例如减压阀,压力传感器和/或压力显示器。 阀壳体121可以安装到液压缸3,并且在安装阶段,阀壳体121上的连接125-129在轴向平行于液压柱塞3的轴线延伸。 根据有利的另外的实施例,阀壳体可以设置有用于延伸壳体40的至少一个紧固装置,该紧固装置可以以可释放的方式安装到其至少一个侧壁22B,用于附加的屏蔽型液压功能 支撑框架(参见图2)。
    • 9. 发明授权
    • Hydraulic control arrangement for a roof support unit of a mineral
mining installation
    • 矿物采矿设备屋顶支撑单元的液压控制装置
    • US4440522A
    • 1984-04-03
    • US217968
    • 1980-12-19
    • Michael DettmersWalter Weirich
    • Michael DettmersWalter Weirich
    • E21D23/06E21D23/08E21D23/16E21D15/14E21D23/00F15B11/20
    • E21D23/16E21D23/063E21D23/08
    • A roof support unit for a longwall mineral mining installation has a roof shield supported above a floor sill. A first hydraulic ram is provided for advancing the roof support unit. The roof shield is provided with a forward extension which is advanceable by means of a second hydraulic advance ram. A hydraulic control arrangement, which includes the two hydraulic advance rams is provided for controlling the advance of the roof shield extension in dependence upon the working stroke of the first hydraulic advance ram. The control arrangement is such that the amount of hydraulic fluid supplied to one of the pressure chambers of the second hydraulic advance ram is dependent upon the amount of hydraulic fluid expelled from one of the pressure chambers of the first hydraulic advance ram during the working stroke of the first hydraulic advance ram.
    • 用于长壁矿物开采装置的屋顶支撑单元具有支撑在地板上方的屋顶护罩。 提供第一液压柱塞用于推进屋顶支撑单元。 屋顶护罩设置有可通过第二液压前进柱塞前进的向前延伸部。 提供了包括两个液压前进柱塞的液压控制装置,用于根据第一液压前进柱塞的工作行程来控制屋顶屏蔽延伸部的前进。 控制装置是这样的:供应到第二液压前进压头的一个压力室的液压流体的量取决于在工作冲程期间从第一液压前进压头的一个压力室排出的液压流体的量 第一液压推进柱塞。
    • 10. 发明授权
    • Housing cover for switching solenoid housing
    • 用于切换电磁铁外壳的外壳
    • US07489216B2
    • 2009-02-10
    • US11583615
    • 2006-10-19
    • Michael DettmersSebastian M. MundryJens TitschertUlrich Ballauf
    • Michael DettmersSebastian M. MundryJens TitschertUlrich Ballauf
    • H01H9/02H01H67/02
    • H05K5/06
    • A housing cover for a solenoid housing operable for accommodating solenoids for switching hydraulic directional valves is disclosed. A housing cover box has a plurality of side walls, a top side, and an open bottom side, with first and second actuating guides for guiding first and second solenoid control push rods being located on the top side. A plug connector is located between the actuating guides. At least one screw clearance hole is located at each corner of the housing cover box for locating a screw for joining the housing cover box to the solenoid housing. A sealing plate is located between the housing cover box and the solenoid housing, and at least one mounting foot is located at a corner and on a bottom surface of the housing cover box. A tubular spigot is aligned with and extends each screw clearance hole.
    • 公开了一种可操作用于容纳用于切换液压换向阀的螺线管的螺线管壳体的壳体盖。 壳体盖盒具有多个侧壁,顶侧和敞开的底侧,第一和第二致动引导件用于引导位于顶侧的第一和第二螺线管控制推杆。 插头连接器位于致动引导件之间。 至少一个螺钉间隙孔位于壳体盖箱的每个角落处,用于定位用于将壳体盖盒连接到螺线管壳体的螺钉。 密封板位于壳体盖盒和螺线管壳体之间,并且至少一个安装脚位于壳体盖盒的角部和底部表面。 管状插口与每个螺钉间隙孔对齐并延伸。