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公开(公告)号：US4900091A
公开(公告)日：1990-02-13
申请号：US243066
申请日：1988-09-09
IPC分类号： E21D23/20
CPC分类号： E21D23/20
摘要： A mining system comprises a laterally deflectable segmented conveyor extending longitudinally along a longitudinal face from which material is to be cut, a mining machine displaceable longitudinally along the conveyor and engageable with the face to cut material therefrom and deposit in the conveyor, and a longitudinal succession of support frames each having a respective actuator connected to a respective segment of the conveyor and each also having a respective a respective retractile roof-engaging flap. The process of this invention comprises bracing the frames and conveyor in a safety zone immediately adjacent the mining machine against the roof with their flaps retracted. The machine is advanced in the safety zone while cutting the face in the safety zone, and the flaps of the frames in a zone immediately downstream of the safety zone are sequentially retracted and the flaps of the frames in a zone upstream of the safety zone are sequentially advanced. The number of frames in the upstream and downstream zone is determined by the stability of the material of the mine roof. The conveyor segments are meanwhile pushed toward the face by extension of the actuators of the frames in a second zone immediately upstream of the upstream zone and the frames are themselves drawn toward the face by contraction of the actuators of the frames in a third zone immediately upstream from the second zone.
摘要翻译： 采矿系统包括横向可偏转的分段输送器，其沿着要从其中切割材料的纵向表面纵向延伸;采矿机器，其沿着输送机纵向移动并且可与所述面部接合以从其中切割材料并沉积在输送机中，并且纵向连续 每个支撑框架各自具有连接到输送机的相应部分的相应致动器，并且每个支撑框架还具有相应的可收回的屋顶接合翼片。 本发明的方法包括在与采矿机相邻的安全区域中将框架和输送机支撑在顶板上并使其翼片缩回。 在安全区切割面时，机器在安全区中前进，紧邻安全区下游的区域中的框架的翼片顺序地缩回，并且在安全区域上游的区域中的框架的翼片是 顺序先进。 上游和下游区域的框架数量由矿山屋顶材料的稳定性决定。 输送段同时通过在紧邻上游区上游的第二区域中的框架的致动器的延伸而朝向面部推动，并且框架本身通过在紧邻上游的第三区域中的框架的致动器的收缩而朝向面部 从第二个区。
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公开(公告)号：US4798417A
公开(公告)日：1989-01-17
申请号：US96678
申请日：1987-09-14
CPC分类号： E21D23/063
摘要： A method in underground coal mining for separating the upper coal of the seam from the roof during the advancement of the upper sliding cap of a support frame, wherein the front edge of the cap is forced in a plane of the cap between the upper coal to be separated and the rock from which the coal is to be separated. During the advancement of the sliding cap, the sliding cap is alternatingly moved backwardly and forwardly, so that the from edge of the sliding cap separates the upper coal during its forward movement. Alternatively or additionally, when the front edge of the sliding cap contacts the upper coal, alternatingly higher and lower pressure can be admitted to the sliding cap in order to obtain a shaking effect. In this combined method, the sliding cap is advanced, the shaking procedure is carried out as the front edge contacts the upper coal, and the sliding cap is subsequently moved backwardly. The cycle is then repeated several times.
摘要翻译： 一种地下采煤方法，用于在支撑框架的上滑动盖的前进过程中将接缝的上部煤层与屋顶分离，其中，盖的前边缘被迫在盖的平面中，在上煤到 与煤分离的岩石。 在滑盖的推进过程中，滑动盖向后和向前交替地移动，使得滑动盖的边缘在其向上运动期间分离上部煤。 或者或另外，当滑盖的前边缘接触上煤时，为了获得振动效果，可以向滑盖接收更高和更低的压力。 在这种组合方法中，滑动盖先进，当前边缘接触上部煤时，摇动过程被执行，滑动盖随后向后移动。 然后重复该循环数次。
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公开(公告)号：US5110187A
公开(公告)日：1992-05-05
申请号：US666399
申请日：1991-03-07
IPC分类号： E21D23/14
CPC分类号： E21D23/14 , E21D23/142
摘要： A mining apparatus of the type in which a mining machine excavates a mining face, especially a coal face in a subterranean mining application, and has a plurality of emitters of electromagnetic waves of different character diverging toward receivers on the individual walking props. The walking props are provided with a control unit which, in response to leading and trailing zones of the respective magnetic beams and/or an overlap region of the two beams, causes the advance of the walking prop as the mining machine travels past it to follow the excavation of the mining face.
摘要翻译： 一种采矿机械，其采矿机械挖掘矿面，特别是地下采矿应用中的煤面，并且具有多个不同性质的电磁波发射器朝向个体步道上的接收器分散。 步行道具设置有控制单元，该控制单元响应于各个磁束的前后区和/或两个横梁的重叠区域，随着采矿机行进通过行走支柱的行进，随之而来 挖掘采矿面。
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公开(公告)号：US5144275A
公开(公告)日：1992-09-01
申请号：US647822
申请日：1991-01-30
IPC分类号： F15B15/28
CPC分类号： F15B15/28
摘要： A positioning cylinder assembly for subterranean mining applications has a rotary potentiometer connected through a friction wheel transmission with the spindle of the cylinder which is rotated when the piston is axially displaced therein. The friction wheel assembly comprises a pinion wheel connected to the spindle and a hollow wheel connected to the rotary potentiometer, that not only matches the pitch of the spindle to the rotary spring of the potentiometer but also functions as a slip clutch for zero setting of the potentionmeter and the piston.
摘要翻译： 用于地下采矿应用的定位气缸组件具有通过摩擦轮传动装置连接的旋转电位器，其中气缸的心轴在活塞在其中轴向位移时旋转。 摩擦轮组件包括连接到主轴的小齿轮和连接到旋转电位计的中空轮，其不仅将主轴的螺距与电位器的旋转弹簧匹配，而且还用作滑动离合器，用于零点设置 电位计和活塞。
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公开(公告)号：US4905520A
公开(公告)日：1990-03-06
申请号：US257104
申请日：1988-10-12
摘要： The pressure sensor has a mechanical pressure receiving member and a mechanical-electrical transducer connected to it. The transducer comprises a permanent magnet attached with a moving portion of the pressure receiving member which cooperates with a locally fixed Hall-effect sensor mounted on the housing. To linearize the characteristic response curve of the transducer the inner surface of the housing wall is shaped like a funnel in a region between the permenent magnet and the Hall-effect sensor and in the vicinity of the permanent magnet. Because of this geometry the field strength lines are bunched increasingly on increasing separation of the permanent magnet from the Hall-effect sensor so that the field strength at the Hall-effect sensor increases and/or decreases approximately linearly with displacement path of the magnet.
摘要翻译： 压力传感器具有连接到其上的机械压力接收部件和机械传感器。 换能器包括一个永久磁铁，该永久磁铁与压力承受部件的运动部分相连，该固定部件与安装在壳体上的局部固定霍尔效应传感器配合。 为了使换能器的特征响应曲线线性化，壳体壁的内表面在容许磁体和霍尔效应传感器之间以及永磁体附近的区域中形成为漏斗。 由于这种几何形状，随着永磁体与霍尔效应传感器的分离增加，场强线越来越多地聚集，使得霍尔效应传感器的场强随着磁体的位移路径的增加和/或大大减小。
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公开(公告)号：US5090775A
公开(公告)日：1992-02-25
申请号：US624222
申请日：1990-12-04
申请人： Karl-Heinz Berger
发明人： Karl-Heinz Berger
IPC分类号： E21F17/00
CPC分类号： E21F17/00
摘要： The noise spectrum in a mining chamber is captured by at least one microphone and is digitized and filtered to separate an operation-typical pattern from an operation atypical pattern. The operation atypical pattern is compared with reference patterns to establish the malfunction or vocal command or emergency and the apparatus is automatically operated in response thereto.
摘要翻译： 采矿室中的噪声谱由至少一个麦克风捕获，并被数字化和滤波，以将操作典型图案与操作非典型图案分离。 将操作非典型模式与参考模式进行比较以建立故障或声音命令或紧急情况，并且该装置响应于此自动操作。
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7.发明授权Method of controlling hydraulically actuatable arrangement in underground mining 失效控制地下采矿中液压可驱动装置的方法
公开(公告)号：US4693640A
公开(公告)日：1987-09-15
申请号：US893568
申请日：1986-08-05
申请人： Karl-Heinz Berger
发明人： Karl-Heinz Berger
IPC分类号： E21D23/12
CPC分类号： E21D23/12
摘要： A method of controlling a plurality of hydraulically-actuated arrangements in underground excavations, comprises the steps of providing an electrical power supply, connecting a plurality of control devices with said power supply and interconnecting the control devices with one another, arranging a plurality of current-suppliable consumers to be connected with the control devices, comparing in each of the control devices a coded information about a number of consumers which have been current supplied from the power supply with a maximum possible number of consumers which can be supplied from the power supply, determining from the comparison the number of the consumers which still can be current-supplied and obtaining by the control device a release for current supplying such consumers, adding consumers which are released by the control device and current supplied with the consumers which have been indicated in the control device as current-supplied, and further transferring the result of the addition in coded form to a next control device.
摘要翻译： 一种在地下挖掘中控制多个液压致动装置的方法，包括以下步骤：提供电源，将多个控制装置与所述电源连接并将所述控制装置相互连接; 可供应的消费者与控制装置连接，在每个控制装置中比较从电源提供的当前提供的许多消费者的编码信息和可从电源提供的最大可能数量的消费者， 从比较来看，仍然可以由当前供应的消费者的数量以及由控制装置获得用于当前供应这种消费者的释放的消费者的数量，添加由控制装置释放的消费者和已经被指示在消费者中的消费者 控制装置作为电流供应，并进一步转移结果o f以编码形式添加到下一个控制装置。
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