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    • 1. 发明授权
    • Mineral mining installation
    • 矿山开采装置
    • US4427321A
    • 1984-01-24
    • US305977
    • 1981-09-28
    • Walter WeirichHarry RosenbergKunibert Becker
    • Walter WeirichHarry RosenbergKunibert Becker
    • E21D23/12E21D23/00E21D23/06E21D23/16E21D15/14E21D23/18E21D23/26
    • E21D23/0043E21D23/063E21D23/16
    • A longwall mineral mining installation has a conveyor and a plurality of roof support units positioned side-by-side on the goaf side of the conveyor. Each roof support unit has a roof shield having an advanceable shield extension. Each unit has a first hydraulic ram for extending its shield extension, and a second hydraulic ram for advancing the conveyor. The extension of each first ram is controlled in dependence upon the retraction of one of the second rams (either the second ram of the same unit or that of an adjacent unit). This control is effected by controlling the supply of pressurized hydraulic fluid to the first rams. In one embodiment this is carried out by a control valve which has a spring-loaded plunger which engages with a series of equispaced cams on the movable cylinder of the associated second ram. In another embodiment, the piston rods of the rams are provided with series of equispaced magnets. The cylinders of the rams are provided with sensors, which sense the magnets and generate control signals. A control box is provided to direct the control signals to control valves associated with the rams, so that the first rams are extended by the same distance as that through which the second rams are retracted.
    • 长壁矿物开采设备具有输送机和多个屋顶支撑单元并排设置在输送机的侧壁上。 每个屋顶支撑单元具有具有可推进的屏蔽延伸部的屋顶屏蔽。 每个单元具有用于延伸其屏蔽延伸部的第一液压柱塞和用于推进输送机的第二液压柱塞。 每个第一柱塞的延伸根据第二个柱塞中的一个(相同单元的第二柱塞或相邻单元的第二柱塞)的缩回来控制。 该控制通过控制向第一公柱供应加压液压流体来实现。 在一个实施例中,该控制阀由具有弹簧加载柱塞的控制阀进行,弹簧加载柱塞与相关联的第二压头的可移动圆柱体上的一系列等间隔的凸轮啮合。 在另一个实施例中,柱塞的活塞杆设置有一系列等间隔的磁体。 传感器的气缸设有传感器,感测磁体并产生控制信号。 提供控制箱以将控制信号引导到与公柱相关联的控制阀,使得第一公柱延伸与第二公柱缩回相同的距离。
    • 2. 发明授权
    • Mineral mining installation
    • 矿山开采装置
    • US4307981A
    • 1981-12-29
    • US145982
    • 1980-05-02
    • Walter WeirichHarry RosenbergKunibert Becker
    • Walter WeirichHarry RosenbergKunibert Becker
    • E21D23/12E21D23/00E21D23/06E21D23/16E21D15/14
    • E21D23/0043E21D23/063E21D23/16
    • A longwall mineral mining installation has a conveyor and a plurality of roof support units positioned side-by-side on the goaf side of the conveyor. Each roof support unit has a roof shield having an advanceable shield extension. Each unit has a first hydraulic ram for extending its shield extension, and a second hydraulic ram for advancing the conveyor. The extension of each first ram is controlled in dependence upon the retraction of one of the second rams (either the second ram of the same unit or that of an adjacent unit). This control is effected by controlling the supply of pressurized hydraulic fluid to the first rams. In one embodiment this is carried out by a control valve which has a spring-loaded plunger which engages with a series of equispaced cams on the movable cylinder of the associated second ram. In another embodiment, the piston rods of the rams are provided with series of equispaced magnets. The cylinders of the rams are provided with sensors, which sense the magnets and generate control signals. A control box is provided to direct the control signals to control valves associated with the rams, so that the first rams are extended by the same distance as that through which the second rams are retracted.
    • 长壁矿物开采设备具有输送机和多个屋顶支撑单元并排设置在输送机的侧壁上。 每个屋顶支撑单元具有具有可推进的屏蔽延伸部的屋顶屏蔽。 每个单元具有用于延伸其屏蔽延伸部的第一液压柱塞和用于推进输送机的第二液压柱塞。 每个第一柱塞的延伸根据第二个柱塞中的一个(相同单元的第二柱塞或相邻单元的第二柱塞)的缩回来控制。 该控制通过控制向第一公柱供应加压液压流体来实现。 在一个实施例中,该控制阀由具有弹簧加载柱塞的控制阀进行,弹簧加载柱塞与相关联的第二压头的可移动圆柱体上的一系列等间隔的凸轮啮合。 在另一个实施例中,柱塞的活塞杆设置有一系列等间隔的磁体。 传感器的气缸设有传感器,感测磁体并产生控制信号。 提供控制箱以将控制信号引导到与公柱相关联的控制阀,使得第一公柱延伸与第二公柱缩回相同的距离。
    • 3. 发明授权
    • Hydraulic control systems for mining apparatus
    • 采矿设备液压控制系统
    • US4391181A
    • 1983-07-05
    • US207507
    • 1980-11-17
    • Walter WeirichMichael DettmersKunibert BeckerHarry Rosenberg
    • Walter WeirichMichael DettmersKunibert BeckerHarry Rosenberg
    • E21D23/16E21D23/26F15B13/04
    • E21D23/16E21D23/26
    • A hydraulic control system, particularly for controlling the operation of roof support props of a mine working, employs control devices operated manually to feed pressure fluid to the working chambers of the props to effect extension or retraction thereof. A two-state valve device is operated when the props are extended to ensure that the correct setting pressure is established. This valve device has a control piston which is actuated to cause the device to establish independent connection between the main fluid pressure line and the associated working chambers of the props charged with fluid by the initial operation of the control devices. The connection established by the valve device is maintained even if the control devices break connection between the chambers and the pressure line. When the correct setting pressure is reached, a further control piston of the valve device is actuated to break the connection established by the valve device ready for the next operative cycle.
    • 特别是用于控制矿山作业的屋顶支撑道具的操作的液压控制系统使用手动操作的控制装置将压力流体供给到道具的工作室以实现其延伸或缩回。 当道具伸展时,操作双态阀装置,以确保建立正确的设定压力。 该阀装置具有控制活塞,该控制活塞被致动以使装置通过控制装置的初始操作在主流体压力管线和充满流体的道具的相关联的工作室之间建立独立的连接。 即使控制装置断开室和压力管线之间的连接,也保持由阀装置建立的连接。 当达到正确的设定压力时,阀装置的另一控制活塞被致动以打破由阀装置建立的连接准备下一个操作循环。
    • 4. 发明授权
    • Mine roof support assembly
    • 矿山屋顶支撑组件
    • US4217067A
    • 1980-08-12
    • US12018
    • 1979-02-14
    • Gunter LagodkaHarry RosenbergKunibert BeckerGerd Dunkel
    • Gunter LagodkaHarry RosenbergKunibert BeckerGerd Dunkel
    • E21D23/00E21D23/04E21D15/44E21D19/02
    • E21D23/0017E21D23/0481
    • The invention relates to a mine roof support assembly for use in winning mineral material from a mineral mining working having a mineral face. The assembly comprises three roof support units positioned side-by-side along the face, and a goaf shield common to the three units. Each of the roof support units has a roof shield supported on a floor sill. The goaf shield is adjustable in height so as to extend from the floor to the roof of the working. Advance means are provided for advancing the roof support units towards the face, and further advance means are provided for advancing the goaf shield to follow up the advance of the roof support units. The further advance means acts between the goaf shield and the roof support units, and is such as to advance the goaf shield by a distance greater than the distance through which the advance means advances the roof support units.
    • 本发明涉及一种用于从具有矿物面的矿物开采工作中获得矿物材料的矿山屋顶支撑组件。 组件包括沿着面并排定位的三个屋顶支撑单元,以及三个单元共同的侧壁屏蔽。 每个屋顶支撑单元具有支撑在地板上的屋顶护罩。 舷窗盾牌高度可调,以便从地板延伸到工作的屋顶。 提供用于将屋顶支撑单元朝向面部推进的预先装置,并且提供进一步的前进装置用于推进舷窗护罩以跟随屋顶支撑单元的前进。 进一步的提前意味着在舷墙护罩和屋顶支撑单元之间的作用,并且使得将舷墙护罩推进距离大于前进装置推进屋顶支撑单元的距离。
    • 7. 发明授权
    • Hydraulic control means
    • 液压控制装置
    • US4306822A
    • 1981-12-22
    • US61116
    • 1979-07-26
    • Walter WeirichHarry Rosenberg
    • Walter WeirichHarry Rosenberg
    • E21D23/06E21D23/26E21D23/16
    • E21D23/26
    • Hydraulic control means are provided for controlling an auxiliary shield positioned at one side of the roof shield of a mine roof support unit. The auxiliary shield is moved laterally of its roof shield by means of three hydraulic rams and the roof shield is supported by hydraulic props. The hydraulic control means comprises a control valve device and two pilot check valves. One pilot check valve is positioned in a line leading from the control valve device to two hydraulic rams which act in tandem. The other pilot check valve is positioned in a line leading from the control valve device to the other hydraulic ram. The pilot check valves are actuated in dependence upon the pressurization of the hydraulic props whereby the hydraulic rams are depressurised when the props are pressurized and vice versa.
    • 提供液压控制装置,用于控制位于矿山屋顶支撑单元的屋顶护罩一侧的辅助屏蔽。 辅助屏蔽通过三个液压柱塞从其屋顶屏蔽横向移动,并且屋顶屏蔽由液压道具支撑。 液压控制装置包括控制阀装置和两个导向止回阀。 一个先导止回阀定位在从控制阀装置引导到一串串联的两个液压柱塞上。 另一个导向止回阀定位在从控制阀装置到另一个液压柱塞的一条直线上。 导向止回阀根据液压支柱的加压动作,从而当道具加压时液压柱塞减压,反之亦然。
    • 8. 发明授权
    • Control unit for an electro-hydraulic roof support control arrangement
    • 电动液压车顶支撑控制装置的控制单元
    • US4378027A
    • 1983-03-29
    • US249316
    • 1981-03-31
    • Walter WeirichHarry Rosenberg
    • Walter WeirichHarry Rosenberg
    • E21D23/26F16K27/00F15B13/06
    • E21D23/26F16K27/003Y10T137/8158Y10T137/87209Y10T137/87217Y10T137/87885Y10T137/87893
    • A control unit/hydraulic control mechanism for controlling the hydraulic working appliances of a mine roof support unit has a control unit mounted on one side of a distributor plate, and a valve block mounted on the other side of the distributor plate. The distributor plate and the valve block constitute the hydraulic control mechanism, the valve block being constituted by a stack of pilot-operated hydraulic control valves. The control unit has a protective casing defining first and second chambers. The first chamber accomodates a plurality of electromagnetic valves. The second chamber constitutes a lead-through chamber for leading electric cables to the electromagnetic valves. The second chamber is provided with a respective socket for each of the electric cables. Each of the sockets is shaped to mate with a complementary member attached to the associated electric cable, whereby the electric cables can be connected to the control unit so as to resist tensile forces, and in such a manner that the interior of the second chamber is sealed with respect to the external atmosphere.
    • 用于控制矿山屋顶支撑单元的液压工作装置的控制单元/液压控制机构具有安装在分配板的一侧的控制单元和安装在分配板的另一侧上的阀块。 分配板和阀块构成液压控制机构,阀块由一组先导式液压控制阀构成。 控制单元具有限定第一和第二腔室的保护壳体。 第一室容纳多个电磁阀。 第二室构成用于将电缆引导到电磁阀的引导室。 第二室设置有用于每个电缆的相应的插座。 每个插座被成形为与附接到相关联的电缆的互补构件配合,由此电缆可以连接到控制单元以便抵抗张力,并且以这样的方式使得第二室的内部 相对于外部气氛密封。