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41 条记录 (耗时 0.012 秒)

    Scraper conveyor guiding longwall machine
    1.
    发明授权
    Scraper conveyor guiding longwall machine 失效
    刮刀输送机引导长壁机

    公开(公告)号：US3659900A

    公开(公告)日：1972-05-02

    申请号：US3659900D

    申请日：1970-02-03

    申请人： EICKHOFF GEB

    发明人： RENZING OTTO

    IPC分类号： B65G19/04 ,  B65G19/08 ,  B65G19/22 ,  B65G19/28 ,  E21C27/06 ,  E21C35/14

    CPC分类号： B65G19/08 ,  B65G19/22 ,  B65G19/28

    摘要： A scraper conveyor in which the entraining means, such as buckets or scrapers, are connected to endless circulating pulling means and move in grooves or troughs for conveying the material while the conveying trough and the trough for guiding the return section of the conveyor are located adjacent to each other and symmetrically with regard to a partition between said troughs.

    摘要翻译： 刮刀输送机，其中诸如铲斗或刮刀的夹带装置连接到环形循环牵引装置，并且在用于输送材料的槽或槽中移动，而用于引导输送机的返回部分的输送槽和槽位于相邻 相对于所述槽之间的间隔彼此对称。

    Method for automatically creating a defined face opening in longwall mining operations
    6.
    发明授权
    Method for automatically creating a defined face opening in longwall mining operations 有权
    在长墙采矿作业中自动创建定义的面孔的方法

    公开(公告)号：US08567871B2

    公开(公告)日：2013-10-29

    申请号：US12918477

    申请日：2008-02-19

    申请人： Martin Junker ,  Armin Mozar

    发明人： Martin Junker ,  Armin Mozar

    IPC分类号： E21C35/14

    CPC分类号： E21D23/0004 ,  E21C35/14 ,  E21C35/24 ,  E21C41/16 ,  E21D23/0034 ,  E21D23/0043 ,  E21D23/12

    摘要： A method for automatically producing a defined face opening in a longwall mining operation, in underground coal mining, having a face conveyor, at least one extraction machine and hydraulic shield support frames. Inclination sensors are disposed on at least three of the four main components of each shield support frame, such as floor skid, gob shield, support connection rods and gob-side area of the top canopy. From ascertained inclination data, by comparison with base data defining a geometrical orientation of the components and a movement thereof during stepping, a respective shield height of the shield support frames perpendicular to a bed thereof is calculated. From further sensors on the extraction machine, a cutting height thereof is acquired as a face opening. In terms of a location-synchronous analysis, for possible adjustment purposes the cutting height is compared with the shield height when the shield support frame, which trails the extraction machine with a time delay, has reached the position to which relates that cutting height which was used in the comparison.

    摘要翻译： 一种用于在地下采煤中在长壁采矿作业中自动产生限定的开口的方法，其具有面部输送机，至少一个提取机和液压屏障支撑框架。 倾斜传感器设置在每个屏蔽支撑框架的四个主要部件中的至少三个上，例如地板滑动件，料滴罩，支撑连接杆和顶部顶盖的料滴侧区域。 从确定的倾斜数据中，通过与限定部件的几何取向的基本数据及其在步进期间的移动相比较，计算出垂直于其床的屏蔽支撑框架的相应屏蔽高度。 从提取机上的其它传感器获取切割高度作为开口。 在位置同步分析方面，为了可能的调整目的，当屏幕支撑框架延迟提升机器到达其位置时，将切割高度与屏蔽高度进行比较，其中切割高度为 用于比较。

    Longwall mineral mining installation
    7.
    发明授权
    Longwall mineral mining installation 失效
    长壁矿山开采安装

    公开(公告)号：US4389072A

    公开(公告)日：1983-06-21

    申请号：US257033

    申请日：1981-04-24

    申请人： Horst Linke ,  Helmut Erwien ,  Herbert Beyer ,  Bodo Kerklies ,  Bernhard Wleklinski ,  Rudolf Mainusch ,  Dieter Grundken ,  Bernd Kumor ,  Ulrich Mohn

    发明人： Horst Linke ,  Helmut Erwien ,  Herbert Beyer ,  Bodo Kerklies ,  Bernhard Wleklinski ,  Rudolf Mainusch ,  Dieter Grundken ,  Bernd Kumor ,  Ulrich Mohn

    IPC分类号： E21C35/14 ,  E21F13/08 ,  E21C29/02

    CPC分类号： E21C35/14 ,  E21F13/086

    摘要： A mineral mining installation comprises a longwall conveyor, a plough movable to and fro along a guide fixed to the face side of the longwall conveyor, and a drive station at one end of the longwall conveyor. The drive station includes a drive frame supporting drive means for driving the longwall conveyor. A support beam is provided at the goaf side of the drive station. The support beam extends substantially parallel to the drive frame. A floor plate extends beneath the drive frame. The goaf-side end portion of the floor plate is supported on the support beam by means of a lifting device, whereby the goaf-side end portion of the floor plate can be moved up and down relative to the support beam by the lifting device.

    摘要翻译： 一种矿物开采装置包括长壁输送机，沿着固定到长壁输送机的正面侧的引导件来回运动的犁和在长壁输送机的一端的驱动站。 驱动站包括支撑用于驱动长壁输送机的驱动装置的驱动框架。 在驱动台的侧面设有支撑梁。 支撑梁基本上平行于驱动框架延伸。 一个地板板延伸到驱动框架的下面。 底板的侧壁端部通过提升装置支撑在支撑梁上，由此，底板的侧壁端部可以通过提升装置相对于支撑梁上下移动。

    Thrust device using hydraulic jacks
    8.
    发明授权
    Thrust device using hydraulic jacks 失效
    推力装置采用液压千斤顶

    公开(公告)号：US4248136A

    公开(公告)日：1981-02-03

    申请号：US931729

    申请日：1978-08-07

    申请人： Guy Blanpain ,  Pierre Grandfils

    发明人： Guy Blanpain ,  Pierre Grandfils

    IPC分类号： E21D23/16 ,  E21C35/14 ,  E21D23/20 ,  E21F13/08 ,  F15B11/15 ,  F15B11/16 ,  F01L25/06 ,  F01B7/18

    CPC分类号： E21F13/086 ,  E21C35/14 ,  E21D23/20

    摘要： The invention relates to a thrust device using a plurality of hydraulic jacks, and to the automatic control of a plurality of thrust jacks.Two differential jacks have resetting chambers which are permanently under hydraulic pressure. Associated with each jack there is a self-locking piloted valve placed in the active position by a push-rod at the end of a work stroke of the piston of the jack and restored into the inactive position by a piloted valve actuated by a push-rod 39 at the end of the return stroke of the piston to its starting position. In the active position the self-locking piloted valve controls the isolation from the supply of all the work chambers and the venting of the associated work chamber 14.

    摘要翻译： 本发明涉及一种使用多个液压千斤顶的推力装置以及多个推力千斤顶的自动控制。 两个差动千斤顶具有永久在液压下的复位腔。 与每个千斤顶相关联的是，一个自锁导向阀通过推杆在插座的活塞的工作行程结束时置于主动位置，并通过由推杆驱动的导向阀恢复到非活动位置， 杆39在活塞的返回行程结束时到达其起始位置。 在主动位置，自锁导向阀控制从所有工作室的供应和相关联的工作室14的排放的隔离。

    Apparatus for advancing conveyors of mining machines in underground excavations
    9.
    发明授权
    Apparatus for advancing conveyors of mining machines in underground excavations 失效
    采矿机械输送机在地下采掘中的装置

    公开(公告)号：US3857246A

    公开(公告)日：1974-12-31

    申请号：US35046973

    申请日：1973-04-12

    申请人： KLOECKNER WERKE AG

    发明人： ROENSPIES H ,  VOGT M

    IPC分类号： E21C35/14 ,  E21D23/00 ,  E21F13/08 ,  E21D11/00 ,  F15B13/04 ,  F15B15/24

    CPC分类号： E21C35/14 ,  E21D23/0073 ,  E21F13/086

    摘要： A double-acting hydraulic cylinder and piston unit whose cylinder is connected to a mobile mine roof support and whose piston rod is attached to and can push a material evacuating conveyor stepwise toward the mine face in an underground excavation. The piston rod is hollow and its interior communicates with an annular chamber in front of the piston. A plunger in the piston rod is movable between a front stop and a rear stop and is biased against the rear stop by a helical spring. A distributor valve is provided to admit pressurized liquid into a second chamber behind the piston so that the piston moves forwardly and expels fluid from the annular chamber into the piston rod with the result that the plunger moves against the front stop and prevents further forward movement of the piston rod. The valve is then reset to allow the outflow of fluid from the annular chamber while the fluid in the second chamber remains entrapped whereby the plunger returns against the rear stop under the action of the spring. The piston again moves the piston rod and the conveyor forwardly in response to renewed admission of fluid into the second chamber while the annular chamber is sealed against escape of fluid. The piston can complete a stroke of maximum length if the second chamber receives fluid while the valve allows fluid to escape from the annular chamber. The cylinder is moved forwardly to pull the mine roof support toward the mine face by admitting pressurized fluid into the annular chamber while the valve allows fluid to escape from the second chamber.

    摘要翻译： 一个双作用液压缸和活塞单元，其气缸连接到移动式矿山屋顶支撑件，并且其活塞杆连接到并且可以在地下开挖中逐步向矿井面推送材料抽空输送机。 活塞杆是中空的，其内部与活塞前面的环形室连通。 活塞杆中的柱塞可在前挡块和后挡块之间移动，并通过螺旋弹簧抵靠后挡块。 分配阀被设置为允许加压液体进入活塞后面的第二腔室，使得活塞向前移动并且将流体从环形室排出到活塞杆中，结果柱塞抵靠前挡块运动，并防止进一步向前运动 活塞杆。 然后阀被复位以允许来自环形室的流体流出，同时第二室中的流体保持夹带，由此在弹簧的作用下柱塞返回到后挡块上。 活塞再次向前移动活塞杆和输送机，以响应于液体进入第二室的更新进入，而环形室被密封以防止流体逸出。