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公开(公告)号：US20220136390A1
公开(公告)日：2022-05-05
申请号：US17436172
申请日：2020-03-02
发明人： Euan KIRKHOPE , Johannes WESSELMANN
摘要： The present invention pertains to a method for monitoring operation of a mining machine unit, particularly of a longwall mining system, having a shield unit connected to a material removing unit by means of an actuator for adjusting a distance between the shield unit and the material removing unit, the method comprises the steps of determining a position change of the shield unit during an actuating operation of the actuator; and a step of detecting a malfunction of the mining machine unit based on the determined position change.
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公开(公告)号：US10508540B2
公开(公告)日：2019-12-17
申请号：US15513872
申请日：2015-04-01
摘要： The present disclosure relates to a plow guide assembly for guiding a mining plow. The plow guide assembly may comprise a base member including a first guide beam for guideing the mining plow and extending along a first axis, and a second guide beam spaced apart the first guide beam for defining a service clearance therebetween, and extending along a second axis axially aligned to the first axis. The plow guide assembly may further comprise an insert element insertable into the service clearance and having a third guide beam extending along a third axis. In an assembled state of the insert element, the third axis is axially aligned to the first and second axes.
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公开(公告)号：US20180363462A1
公开(公告)日：2018-12-20
申请号：US15778370
申请日：2016-12-07
发明人： Joachim RASCHKA , Ulrich BECHEM
摘要： A milling device for excavating mining materials is disclosed. The milling device comprises a milling drum rotatable about a drum axis; a first group of excavating heads arranged around a periphery of the milling drum and driven to rotate about a first rotational axis extending substantially radially to the drum axis; and a second group of excavating heads arranged around the periphery of the milling drum and rotatable about a second rotational axis extending substantially radially to the drum axis. The first group of excavating heads includes a plurality of first excavating tools configured to perform a first, cutting operation, and the second group of excavating heads includes a plurality of second excavating tools configured to perform a second excavating operation different from the first, cutting operation.
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公开(公告)号：US20180298753A1
公开(公告)日：2018-10-18
申请号：US15490542
申请日：2017-04-18
发明人： Carl John Moberg , Oliver Kortmann , Thomas Temmann , Konstantin Halle , Bjoern-Andre Huehn , Carsten Butz , Frank Kühnemund
摘要： A control system for controlling operation of a cutter motor and a cutter boom movement mechanism of a machine includes a sensor that measures an amount of load associated with the cutter motor. A controller determines whether the load on the cutter motor is different from a cutter motor load limit. If so, the controller is configured to adjust a velocity of the cutter boom movement mechanism relative to a tip velocity of a rotary cutting tool associated with the machine based on the difference between the measured cutter motor load and the cutter motor load limit until a torque error of the cutter motor reaches a particular value, for instance, zero. Moreover, the controller may also adjust a current speed of the cutter motor in driving the rotary cutting tool based on the adjusted velocity of the cutter boom movement mechanism.
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公开(公告)号：US10053982B2
公开(公告)日：2018-08-21
申请号：US14890234
申请日：2014-05-09
发明人： Joachim Raschka , Jens Steinberg , Ulrich Bechem
CPC分类号： E21C25/08 , E01C23/088 , E01C23/09 , E21C25/10 , E21C27/22 , E21C31/02 , E21D9/1013
摘要： A milling device is disclosed. The milling device may have a shaft. The shaft may have a shaft axis (A). The milling device may also have a spindle drum rotatably mounted relative to the shaft axis (A) and rotatable about a spindle drum axis (B) coaxial to the shaft axis (A). Further, the milling device may have a plurality of tool spindles rotatably mounted in the spindle drum and rotatable about tool spindle axes (D). Each tool spindle axis (D) may be parallely arranged and spaced apart from the shaft axis (A) and may have a same distance to the shaft axis (A). The milling machine may also have a plurality of machining tools carried by the tool spindles. At least two of the plurality of machining tools may be positioned displaced from one another in a direction of the shaft axis (A).
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公开(公告)号：US20180171796A1
公开(公告)日：2018-06-21
申请号：US15383660
申请日：2016-12-19
发明人： Carl J. Moberg , Thomas Temmann , Martin Teiner , Frank Kuehnemund , Paul Kornev
摘要： A machine includes an undercarriage having propulsions devices such as continuous tracks and a cutter head disposed on a cutter boom that is slidably supported over the undercarriage. During operation, the cutter head is positioned proximate to the cutting surface and may be maneuvered through a predetermined set of operations to make a plurality of horizontal or vertical cuts while feeding the cutter head into the surface. Once the cutter boom is fully extended, the machine must be trammed to a new position using the continuous tracks to conduct the next predetermined set of operations. The machine may be configured to retract the cutter boom prior to tramming the machine to avoid damage to the cutter boom and/or cutting surface.
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公开(公告)号：US09988904B2
公开(公告)日：2018-06-05
申请号：US15313379
申请日：2015-05-22
IPC分类号： E21C27/44 , E21C35/193 , E21C27/36
CPC分类号： E21C35/193 , E21C27/36 , E21C27/44 , E21C35/1936
摘要： A plow bit for a bit holder including a recess of a mining plow is disclosed. The plow bit also has a bit shank configured to be inserted into the recess of the bit holder. The bit shank has a front shank face, which is concave. The bit shank also has a rear shank face disposed on an opposite side of the bit shank with respect to the front shank face. The bit shank further has a first lateral shank face connected to the front shank face and the rear shank face. The first lateral shank face includes a first groove extending from the front shank face in direction of the rear shank face. The groove receives a securing pin.
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公开(公告)号：US09933282B2
公开(公告)日：2018-04-03
申请号：US15318904
申请日：2015-06-17
发明人： Muhammet Tekin
IPC分类号： G01D5/14
CPC分类号： G01D5/145 , F15B15/2861
摘要： A sensing device for a digital linear position sensor is disclosed. The sensing device may have a mounting device including a mounting surface. The sensing device may also have a plurality of resistors mounted on the mounting surface. The plurality of resistors may be electrically connected between a first voltage node (Uin) and a second voltage node (GND). Further, the sensing device may have a plurality of Hall switches mounted on the mounting surface at predetermined intervals in a longitudinal direction of the mounting device. Each of the plurality of Hall switches may be configured to adjust a total resistance of the plurality of resistors between the first voltage node (Uin) and the second voltage node (GND) upon actuation by an applied magnetic field.
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公开(公告)号：US20170108016A1
公开(公告)日：2017-04-20
申请号：US15300581
申请日：2015-03-27
CPC分类号： F15B15/1438 , E21D15/15 , E21D15/44 , E21D15/51 , E21D15/56 , F15B15/1461 , F15B15/16
摘要： A hydraulic cylinder is disclosed. The hydraulic cylinder may have an outer cylindrical tube including an open end, a first female threaded portion, and a second female threaded portion. The hydraulic cylinder may also have a movable element received in the outer cylindrical tube through the open end. Further, the hydraulic cylinder may have a sleeve holder engaged with the first female threaded portion to seal an annular space between the outer cylindrical tube and the movable element. The sleeve holder may have a first male threaded portion mating with the first female threaded portion. In addition, the hydraulic cylinder may have a locking ring engaged with the second female threaded portion to secure the sleeve holder to the outer cylindrical tube. The locking ring may have a second male threaded portion mating with the second female threaded portion.
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10.发明授权Drive connection with integrated chain tensioning apparatus for face conveyors 有权用于面部输送机的集成链条张紧装置的驱动连接公开(公告)号：US09499347B2
公开(公告)日：2016-11-22
申请号：US14890250
申请日：2014-04-24
发明人： Adam Gacka , Andreas Scheer , Dennis Grimm , Tobias Kleinbongartz , Thomas Hoelken , Michael Nafe , Peter Pientka , Svenja Bauhaus , Alexander Jänsch , Jessica Johnson
CPC分类号： B65G23/44 , E21C29/145
摘要： A drive connection is disclosed. The drive connection may be configured to be interconnected between a main driving unit and a main gear unit of a driving device configured to drive a chain of a conveyor of a longwall device. The drive connection may have a housing configured to be connected to the main driving unit and to the main gear unit. The drive connection may also have a drive shaft disposed within the housing and configured to transmit torque from the main driving unit to the main gear unit. In addition, the drive connection may have a chain tensioning apparatus disposed within the housing. The chain tensioning apparatus may have a worm drive interacting with the drive shaft. The chain tensioning apparatus may be configured to drive the drive shaft for tensioning the chain of the conveyor when the main driving unit is in a non-operative state.
摘要翻译： 公开了一种驱动连接。 驱动连接可以被构造成在构造成驱动长壁装置的输送机链条的驱动装置的主驱动单元和主齿轮单元之间互连。 驱动连接可以具有被构造成连接到主驱动单元和主减速器的壳体。 驱动连接还可以具有设置在壳体内的驱动轴，并且构造成将扭矩从主驱动单元传递到主减速器。 此外，驱动连接可以具有设置在壳体内的链条张紧装置。 链条张紧装置可以具有与驱动轴相互作用的蜗杆驱动器。 链条张紧装置可以构造成当主驱动单元处于非操作状态时驱动驱动轴以张紧输送机的链条。
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