Distributors for pressure fluid control system in mineral mining
installations
    1.
    发明授权
    Distributors for pressure fluid control system in mineral mining installations 失效
    矿山采矿设备压力流体控制系统经销商

    公开(公告)号:US4718458A

    公开(公告)日:1988-01-12

    申请号:US003956

    申请日:1987-01-16

    Abstract: A distributor block for interconnecting a hose bundle to a control device of a pressure fluid control system in an underground mine working has internal passageways for connecting valves of the device to individual hoses. Bores in the block receive detachable elongate coupling members which themselves have internal bores and plugs for engaging in sockets within the control device. The coupling members are journalled in the block for slight transverse and angular movements within seals.

    Abstract translation: 用于将软管束与地下矿井加工中的压力流体控制系统的控制装置互连的分配器块具有用于将装置的阀连接到单个软管的内部通道。 块体中的孔容纳可拆卸的细长联接构件,其本身具有用于接合控制装置内的插孔的内孔和塞子。 联接构件支承在块体中,用于密封件内的轻微横向和角度运动。

    Mine roof support unit having dust suppression means
    2.
    发明授权
    Mine roof support unit having dust suppression means 失效
    具有防尘装置的矿山屋顶支撑单元

    公开(公告)号:US4552487A

    公开(公告)日:1985-11-12

    申请号:US533361

    申请日:1983-09-19

    Applicant: Walter Weirich

    Inventor: Walter Weirich

    CPC classification number: E21D23/0004 E21F5/02

    Abstract: A mine roof support unit has a roof shield for supporting the roof of a mine working, and a goaf shield for screening off the goaf space of the working. The mine roof support unit is provided with dust suppression means constituted by a flat-section spray nozzle arranged along the front edge of the roof shield, or along the top edge of the goaf shield. The spray nozzle is directed upwardly away from the roof support unit and towards the goaf space.

    Abstract translation: 矿山屋顶支撑单元具有用于支撑矿山工作屋顶的屋顶护板,以及用于筛选工作空间的舷窗。 矿山屋顶支撑单元设置有由沿着屋顶护罩的前边缘或沿着舷墙护罩的顶部边缘布置的平坦部分喷嘴构成的防尘装置。 喷嘴被引导向上远离屋顶支撑单元并且朝向顶角空间。

    Control systems for mineral mining installations
    3.
    发明授权
    Control systems for mineral mining installations 失效
    矿山采矿设备控制系统

    公开(公告)号:US4451181A

    公开(公告)日:1984-05-29

    申请号:US361182

    申请日:1982-03-24

    CPC classification number: E21D23/14 E21D23/20

    Abstract: An electro-hydraulic control system for an underground mineral mining installation employs individual control assemblies and devices on a series of support units which are interconnected to one another and to a central control station via lines conveying electrical control signals. Manually-operable selector switches on the units enable groups of the support units to be operated in sequence at will by operating the switches of adjacent units outside the group.

    Abstract translation: 用于地下采矿设备的电液控制系统在通过传送电控信号的线路彼此相互连接并通过中央控制站相互连接的一系列支撑单元上采用单独的控制组件和装置。 单元上的手动操作选择器开关允许通过操作组外的相邻单元的开关来依次操作支持单元的组。

    Hydraulic control arrangement for a roof support unit of a mineral
mining installation
    4.
    发明授权
    Hydraulic control arrangement for a roof support unit of a mineral mining installation 失效
    矿物采矿设备屋顶支撑单元的液压控制装置

    公开(公告)号:US4440522A

    公开(公告)日:1984-04-03

    申请号:US217968

    申请日:1980-12-19

    CPC classification number: E21D23/16 E21D23/063 E21D23/08

    Abstract: 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.

    Abstract translation: 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。

    Multi-core hydraulic duct
    5.
    发明授权
    Multi-core hydraulic duct 失效
    多芯液压管

    公开(公告)号:US4149567A

    公开(公告)日:1979-04-17

    申请号:US868950

    申请日:1978-01-12

    Applicant: Walter Weirich

    Inventor: Walter Weirich

    CPC classification number: F16L39/02 E21D23/26 E21F17/08 F16L11/22

    Abstract: A multi-core duct is constituted by a plurality of resilient conduits bunched together within a protective sleeve. Each of the conduits is formed from a high-strength synthetic plastics material and the protective sleeve is made of a flame-resistant synthetic plastics material.

    Abstract translation: 多芯管道由在保护套管内聚束在一起的多个弹性导管构成。 每个导管由高强度合成塑料材料形成,保护套由耐火合成塑料材料制成。

    Balanced hydraulic valve devices
    6.
    发明授权
    Balanced hydraulic valve devices 失效
    平衡液压阀装置

    公开(公告)号:US5157947A

    公开(公告)日:1992-10-27

    申请号:US312075

    申请日:1989-02-16

    CPC classification number: F16K15/18 Y10T137/7781

    Abstract: A valve device takes the form of a multi-part cartridge with a hollow stepped housing containing a stepped rod. A control piston at one end of the rod is opposed by the force of a main spring in a main chamber remote from the control piston. A valve closure member is axially displaceable relative to the rod. The valve closure member is normally held against a valve seating but pressure on the control piston displaces the rod and causes the valve closure member to be lifted from its seating via stop faces. An auxiliary chamber in the housing leads via a connection to some consumer appliance and forms, the downstream side of the valve. A compensating piston on the rod member opposes a face of the valve closure member open to the auxiliary chamber. A further spring in the auxiliary chamber holds the valve closure member on its seating. The valve can open independently of the control piston should the pressure on the upstream side of the valve exceed the consumer pressure. This upstream side usually leads to either the pressure line or a return line as determined for example, by a change-over valve. The valve closure member will respond reliably to increased pressure on the control piston which only has to overcome predetermined spring force independent of hydraulic pressure in the auxiliary chamber.

    Abstract translation: 阀装置采用具有中空阶梯式壳体的多部分筒形的形式,其包含阶梯式杆。 杆的一端处的控制活塞与远离控制活塞的主室中的主弹簧的力相对。 阀关闭构件可相对于杆轴向移动。 阀关闭构件通常保持在阀座上,但是控制活塞上的压力使杆移位,并使阀关闭构件通过止动面从其座上抬起。 壳体中的辅助室通过与一些消费者用具的连接引出,形成阀的下游侧。 杆构件上的补偿活塞与通向辅助室的阀门关闭构件的面相对。 辅助室中的另一弹簧将阀关闭构件保持在其座上。 如果阀门上游侧的压力超过使用者的压力,阀门可独立于控制活塞打开。 该上游侧通常通过例如通过转换阀确定的压力线或返回线。 阀关闭构件将可靠地响应于控制活塞上的增加的压力,其仅需要克服与辅助室中的液压无关的预定弹簧力。

    Pressure-relief valve devices
    7.
    发明授权
    Pressure-relief valve devices 失效
    减压阀装置

    公开(公告)号:US4790347A

    公开(公告)日:1988-12-13

    申请号:US116299

    申请日:1987-11-04

    Abstract: A pressure-relief valve device has the stem of a valve member guided within a sealed bore of a guide piece screwed into or onto a sleeve-like housing. A spring in the housing acts on a pressure disk to create closure force on the head of the valve member. A connector, which may provide a plug-in connection to some equipment to be controlled, is in screw-threaded engagement with the guide and can be removed to provide ready access to the valve member without disturbing the remainder of the assembly and its setting. The valve member has a piston opposite the head which fits in a recess in the connector. An end wall of the recess forms a stop limiting the closed position of the valve and an end face of the guide forms a complementing stop face limiting the open position of the valve.

    Abstract translation: 减压阀装置具有阀构件的阀杆,该阀构件被引导到螺纹连接到套筒状壳体中或其上的导向件的密封孔中。 壳体中的弹簧作用在压力盘上以在阀构件的头部上产生闭合力。 可以提供与要控制的一些设备的插入式连接的连接器与引导件螺纹接合,并且可以移除以提供对阀构件的准备的访问,而不会干扰组件的其余部分及其设置。 阀构件具有与头部相对的活塞,该活塞装配在连接器中的凹部中。 凹口的端壁形成限制阀的关闭位置的止挡件,并且引导件的端面形成限制阀的打开位置的补充止挡面。

    Control of the actuation of hydraulic consumers
    9.
    发明授权
    Control of the actuation of hydraulic consumers 失效
    控制液压消耗者的动作

    公开(公告)号:US4702148A

    公开(公告)日:1987-10-27

    申请号:US878154

    申请日:1986-06-25

    CPC classification number: F15B11/22 F15B21/08 Y10T137/86686

    Abstract: The invention relates to a method for the simultaneous actuation of a plurality of hydraulic consumers by means of intrinsically-safe electro-hydraulic valves. The consumers are connected by hydraulic directional control valves to a pressure line and/or a return line. These hydraulic directional control valves can be connected in a predetermined manner, via pre-control valves to a control line. The pre-control valves are pressureless, and possess electro-magnets with a current consumption of less than 50 milliamps. By connection of a series-connected electro-hydraulic directional control valve means, the pre-control valves are connected to the control line, and at the same time are hydraulically locked.

    Abstract translation: 本发明涉及通过本质安全电动液压阀同时致动多个液压消耗器的方法。 消费者通过液压方向控制阀连接到压力管线和/或返回管路。 这些液压方向控制阀可以通过预控制阀以预定的方式连接到控制线。 预控阀是无压力的,并且具有消耗电流小于50毫安的电磁体。 通过串联连接的电动液压方向控制阀装置,预控阀连接到控制线,同时被液压锁定。

    Hydraulic connecting device
    10.
    发明授权
    Hydraulic connecting device 失效
    液压连接装置

    公开(公告)号:US4534584A

    公开(公告)日:1985-08-13

    申请号:US464258

    申请日:1983-02-07

    CPC classification number: F16L39/02

    Abstract: A hydraulic connecting device is disclosed, the device being for interconnecting a multi-line hose and a coupling device. The hose has a plurality of flexible hydraulic conduits bunched together within a protective sheath. The coupling device has a plurality of plug pins held within a casing by a retaining disc. The casing is attached to the protective sheath by the connecting device. The connecting device is constituted by a clamping sleeve, which is connected to the protective sheath, and a connecting sleeve, which is connected to the casing. The two sleeves are telescoped together at end portions thereof and are joined together by means of a rotary connection which resists tensile forces. The rotary connection is constituted by a releasable securing element.

    Abstract translation: 公开了一种液压连接装置,该装置用于互连多线软管和耦合装置。 软管具有多个柔性液压导管,其在保护套内聚集在一起。 联接装置具有通过保持盘保持在壳体内的多个插头销。 外壳通过连接装置连接到保护套。 连接装置由连接到保护护套的夹紧套筒和连接到壳体的连接套筒构成。 两个袖子在其端部伸缩在一起,并通过抵抗张力的旋转连接件连接在一起。 旋转连接由可释放的固定元件构成。

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