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1. 发明授权

US4796143A Electric transformer for underground mining machine 失效
标题翻译：地下采矿机用电力变压器
公开(公告)号：US4796143A
公开(公告)日：1989-01-03
申请号：US161752
申请日：1988-02-29
申请人： Horst Odenkirchen , Klaus Lodwig
发明人： Horst Odenkirchen , Klaus Lodwig
IPC分类号： H01F27/16 , H01F27/22 , H01F27/40 , H01F30/10 , H02H5/04 , H01F27/10
CPC分类号： H01F30/10 , H01F27/16 , H01F27/22 , H01F27/402 , H01F2027/406
摘要： A transformer for use on an underground mining machine, such as a shearer loader. The transformer is cylindrical in shape and contains a central cavity extending therethrough to allow positioning of the transformer about a drive shaft of the motor of the mining machine. A tubular housing surrounds a cylindrical iron core with such housing containing a helically wound coolant duct to allow coolant fluid to flow therethrough.
摘要翻译：用于地下采矿机的变压器，如采煤机装载机。变压器是圆柱形的，并且包含延伸穿过其中的中心腔，以允许变压器围绕采矿机的电动机的驱动轴定位。管状壳体围绕圆柱形铁芯，这种壳体包含螺旋缠绕的冷却剂管道，以允许冷却剂流体流过其中。

2. 发明授权

US4889393A Drum cutter-loader for underground mining machine 失效
标题翻译：地下采矿机鼓式装载机
公开(公告)号：US4889393A
公开(公告)日：1989-12-26
申请号：US261102
申请日：1988-10-24
申请人： Herbert Schupphaus
发明人： Herbert Schupphaus
IPC分类号： E21C31/10
CPC分类号： E21C31/10
摘要： In a drum cutter-loader underground mining machine, wherein the drum is rotatably carried by an arm arranged adjacent to the coal face side of the machine. The arm is pivotally adjusted by a number of pressure cylinders and carried on an axis arranged between a machine body and a housing of a drive motor for the drum. The cylinders are carried by the machine body on a common axis with their piston rods connected to the housing on a common axis, the pivot axes of the arm, cylinders and the piston rod connections being parallelly arranged.
摘要翻译：在滚筒式装载机地下采矿机中，其中滚筒可旋转地由靠近机器的煤面侧布置的臂旋转。臂通过多个压力缸枢转调节，并承载在设置在机体和用于滚筒的驱动马达的壳体之间的轴上。气缸由机体承载在公共轴线上，其活塞杆在公共轴线上连接到壳体，臂，气缸和活塞杆连接的枢轴平行布置。

3. 发明授权

US4898428A Power supply system for an underground mining machine 失效
标题翻译：地下采矿机供电系统
公开(公告)号：US4898428A
公开(公告)日：1990-02-06
申请号：US229255
申请日：1988-08-05
申请人： Karl-Heinz Weber
发明人： Karl-Heinz Weber
IPC分类号： E21C29/00 , E21C31/00 , E21F17/06
CPC分类号： E21C31/00 , E21F17/06
摘要： A power supply system for a drum-cutter mining machine utilized in longwall mining operations. Three-phase electrical power is supplied to a rectifier circuit positioned remote from the mining machine to rectify the three-phase electrical power. Rectified electrical power is supplied to the mining machine through cables, whereat the electrical power is inverted by inverters. Power transistors are coupled between the inverters and the respective motors of the mining machine. Positioning the rectifier remote from the mining machine allows the body of the mining machine to be of reduced dimensions.
摘要翻译：一种用于长壁采矿作业的滚筒式挖掘机的电源系统。将三相电力供给到远离采矿机的整流电路，以对三相电力进行整流。整流电力通过电缆供应给采矿机，电力由逆变器反转。功率晶体管耦合在逆变器和采矿机的各个电动机之间。将整流器远离采矿机定位允许采矿机的主体尺寸减小。

4. 发明授权

US4850648A Gear rack for driving or guiding a drum cutter loader 失效
标题翻译：用于驱动或引导滚筒装载机的齿条
公开(公告)号：US4850648A
公开(公告)日：1989-07-25
申请号：US255339
申请日：1988-10-11
申请人： Lothar Muller
发明人： Lothar Muller
IPC分类号： E21C29/02 , F16H9/04
CPC分类号： E21C29/02
摘要： A gear rack is made up of rack segments arranged end-to-end supported by and extending along face conveyor for meshing engagement with a gear of a drive to propel a mining machine along a mine face. The teeth of each rack segment extend between longitudinal cheek sections. A thicker one of the cheek sections has a downward extending shoulder at each of opposite ends to engage in a cavity of a bracket and secured therein for limited movement by a fastener pin. A wall section of the bracket extends against a bearing surface formed by a cavity in the underside of the gear tooth at the end portion of the rack segment. The width of the wall section corresponds to the width of the bearing surface.
摘要翻译：齿条由端部至端部布置的齿条段组成，由面传送器支撑并沿着面传送器延伸，用于与驱动器的齿轮啮合，以沿着矿井推进采矿机。每个齿条段的齿在纵向脸颊部分之间延伸。较厚的一个面颊部分在每个相对端处具有向下延伸的肩部，以接合支架的空腔并固定在其中，由紧固销引导有限的运动。托架的壁部分在齿条段的端部处与齿轮齿下侧的空腔形成的支承面相对。壁部的宽度对应于支承面的宽度。

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