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公开(公告)号：US20120104829A1
公开(公告)日：2012-05-03
申请号：US13382207
申请日：2010-06-18
申请人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
发明人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
CPC分类号： E21D23/26 , E21D23/18 , F15B19/005 , Y10T137/8158
摘要： A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields comprises a pressure monitoring device in the pressure line between the load maintaining valve and the shield control valve. Said pressure monitoring device can be a device for monitoring the piston position of the shield control valve which device signals a deviation of the set position predetermined by the shield control device from the measured actual position of the piston of the shield control valve in the form of a deviation signal. It may also be a pressure sensor which signals the deviation of the set pressure predetermined by the shield control device from the measured actual pressure in the form of a deviation signal. Signaling can be acoustic or optical.
摘要翻译： 用于通过多个支撑屏蔽支撑长壁的用于地下采矿的长壁支撑的液压回路包括在负载保持阀和屏蔽控制阀之间的压力线中的压力监测装置。 所述压力监测装置可以是用于监测屏蔽控制阀的活塞位置的装置，该装置将屏蔽控制装置预定的设定位置的偏差与屏蔽控制阀的活塞的测量实际位置的信号以 偏差信号。 它也可以是一个压力传感器，其以屏蔽控制装置预定的设定压力的偏差与偏离信号形式的测量的实际压力进行通信。 信号可以是声学或光学的。
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公开(公告)号：US20120170981A1
公开(公告)日：2012-07-05
申请号：US13420891
申请日：2012-03-15
申请人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
发明人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
IPC分类号： E21D17/05
摘要： A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields comprises in the annular piston line of each cylinder/piston unit a pressure sensor. Said pressure sensor upon reaching a predetermined maximum pressure activates a pressure deviation signal, which causes the entire longwall to be depressurized by means of a longwall shut-off valve. The pressure deviation signal is blocked for one of the hydraulic valves against each triggering signal.
摘要翻译： 用于在地下采矿中用于通过多个支撑屏蔽支撑长壁的长壁支撑的液压回路包括在每个气缸/活塞单元的环形活塞线中的压力传感器。 所述压力传感器在达到预定最大压力时启动压力偏差信号，这使得整个长壁通过长壁截止阀被减压。 一个液压阀的压力偏差信号针对每个触发信号被阻挡。
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公开(公告)号：US08960807B2
公开(公告)日：2015-02-24
申请号：US13382207
申请日：2010-06-18
申请人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
发明人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
CPC分类号： E21D23/26 , E21D23/18 , F15B19/005 , Y10T137/8158
摘要： A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields incorporates a pressure monitoring device in the pressure line between the load maintaining valve and the shield control valve. The pressure monitoring device can be a device for monitoring the piston position of the shield control valve which device signals a deviation of the set position predetermined by the shield control device from the measured actual position of the piston of the shield control valve in the form of a deviation signal. It may also be a pressure sensor which signals the deviation of the set pressure predetermined by the shield control device from the measured actual pressure in the form of a deviation signal. Signaling can be acoustic or optical.
摘要翻译： 用于在地下采矿中用于通过多个支撑屏蔽支撑长壁的长壁支撑的液压回路包括在负载保持阀和屏蔽控制阀之间的压力线中的压力监测装置。 压力监视装置可以是用于监视屏蔽控制阀的活塞位置的装置，该装置将屏蔽控制装置预定的设定位置的偏差与屏蔽控制阀的活塞的测量实际位置的信号以 偏差信号。 它也可以是一个压力传感器，其以屏蔽控制装置预定的设定压力的偏差与偏离信号形式的测量的实际压力进行通信。 信号可以是声学或光学的。
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公开(公告)号：US08876218B2
公开(公告)日：2014-11-04
申请号：US13420891
申请日：2012-03-15
申请人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
发明人： Wilfried Weigel , Gerhard Wülfing , Peter Rahms
摘要： A hydraulic circuit for longwall support for use in underground mining for supporting a longwall by means of a plurality of support shields includes in the annular piston line of each cylinder/piston unit a pressure sensor. The pressure sensor, upon reaching a predetermined maximum pressure activates a pressure deviation signal, causes the entire longwall to be depressurized by means of a longwall shut-off valve. The pressure deviation signal is blocked for one of the hydraulic valves against each triggering signal.
摘要翻译： 用于在地下采矿中用于通过多个支撑屏蔽支撑长壁的长壁支撑的液压回路包括在每个气缸/活塞单元的环形活塞线中的压力传感器。 压力传感器在达到预定的最大压力时启动压力偏差信号，通过长壁截止阀使整个长壁被减压。 一个液压阀的压力偏差信号针对每个触发信号被阻挡。
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公开(公告)号：US20130048093A1
公开(公告)日：2013-02-28
申请号：US13586604
申请日：2012-08-15
申请人： Gerhard Wülfing
发明人： Gerhard Wülfing
IPC分类号： F16K31/12
CPC分类号： E21D23/16 , E21D23/26 , Y10T137/0324 , Y10T137/7758 , Y10T137/8326 , Y10T137/86614 , Y10T137/87885
摘要： The invention relates to a control device for an extracting unit in the face of a mine, for actuating the hydraulic actuator in the sense of drawing, stepping, setting, and having a plurality of main valves for connecting the actuator of the extracting unit to a main pressure line and a main return line, and a similar plurality of pilot valves, each associated with a main valve for adjusting same and connected to the main pressure line via a pilot pressure line common to all pilot valves and connected to the main return line via a return line common to the main valves and the pilot valves. The pilot pressure line can be shut off and the return line can be blocked off from the main return line and connected to a measuring device for measuring escaping hydraulic fluid.
摘要翻译： 本发明涉及一种用于矿井面上的提取单元的控制装置，用于致动液压致动器的拉伸，步进，设定和多个主阀，用于将提取单元的致动器连接到一个 主压力管线和主回流管路，以及类似的多个先导阀，每个先导阀与主阀相关联，主阀用于调节主阀，并通过所有先导阀共用的先导压力管线连接到主压力管路，并连接到主回流管线 通过主阀和先导阀共同的回流管路。 可以关闭先导压力管路，并且可以将主回路线从主回流管路中断开，并连接到用于测量泄漏液压油的测量装置。
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公开(公告)号：US08726937B2
公开(公告)日：2014-05-20
申请号：US13586604
申请日：2012-08-15
申请人： Gerhard Wülfing
发明人： Gerhard Wülfing
IPC分类号： F15B13/043
CPC分类号： E21D23/16 , E21D23/26 , Y10T137/0324 , Y10T137/7758 , Y10T137/8326 , Y10T137/86614 , Y10T137/87885
摘要： The invention relates to a control device for an extracting unit in the face of a mine, for actuating the hydraulic actuator in the sense of drawing, stepping, setting, and having a plurality of main valves for connecting the actuator of the extracting unit to a main pressure line and a main return line, and a similar plurality of pilot valves, each associated with a main valve for adjusting same and connected to the main pressure line via a pilot pressure line common to all pilot valves and connected to the main return line via a return line common to the main valves and the pilot valves. The pilot pressure line can be shut off and the return line can be blocked off from the main return line and connected to a measuring device for measuring escaping hydraulic fluid.
摘要翻译： 本发明涉及一种用于矿井面上的提取单元的控制装置，用于致动液压致动器的拉伸，步进，设定和多个主阀，用于将提取单元的致动器连接到一个 主压力管线和主回流管路，以及类似的多个先导阀，每个先导阀与主阀相关联，主阀用于调节主阀，并通过所有先导阀共用的先导压力管线连接到主压力管路，并连接到主回流管线 通过主阀和先导阀共同的回流管路。 可以关闭先导压力管路，并且可以将主回路线从主回流管路中断开，并连接到用于测量泄漏液压油的测量装置。
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