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公开(公告)号：US11329589B2
公开(公告)日：2022-05-10
申请号：US13842707
申请日：2013-03-15
发明人： Peter M. Dalton , Michael Jordan
摘要： A mining machine including a motor, an adjustable speed drive providing a voltage to the motor, the voltage having an excitation component comprising a magnitude and a frequency for operating the motor at a desired speed and including an additional voltage component for use in detecting a ground fault condition, and a ground fault relay for detecting a ground fault current when the ground fault current exceeds a predetermined threshold.
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公开(公告)号：US11319809B2
公开(公告)日：2022-05-03
申请号：US16795173
申请日：2020-02-19
摘要： Methods and systems of monitoring and controlling a longwall mining system. One system includes a shearer including a cutter drum and a sensor mounted to the shearer. The system also includes an electronic controller including a processor and a memory, the electronic controller communicatively coupled to the sensor. The electronic controller is configured to receive vibration data from the sensor and determine a current vibration level associated with the shearer based on the vibration data. The electronic controller is also configured to compare the current vibration level to a vibration threshold. The electronic controller is also configured to, in response to the current vibration level exceeding the vibration threshold, adjust a cutting parameter for the cutter drum of the shearer. The electronic controller is also configured to control the cutter drum with the adjusted cutting parameter.
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公开(公告)号：US20220112805A1
公开(公告)日：2022-04-14
申请号：US17556707
申请日：2021-12-20
发明人： Peter Hanna , Callum Tyler , Brad Neilson
摘要： A boom for supporting a drilling and bolting tool includes a first portion including a first end and a second end, a longitudinal axis extending between the first end and the second end; a second portion including a proximal end and a distal end, the proximal end supported for translational movement relative to the first portion in a direction parallel to the longitudinal axis, the distal end configured to support the drilling and bolting tool; an actuator for moving the second portion relative to the first portion parallel to the longitudinal axis; and a fluid passage for conveying pressurized fluid between the first end of the first portion and the drilling and bolting tool adjacent the distal end of the second portion, the fluid passage positioned within the first portion and the second portion.
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公开(公告)号：US11274506B2
公开(公告)日：2022-03-15
申请号：US16432639
申请日：2019-06-05
IPC分类号： E21B19/084 , E21D20/00 , E21B7/02
摘要： A drill device includes a base frame, a feed frame supported for movement relative to the base frame, and a feed device for inserting a drill element into a rock surface. The base frame includes a pair of fluid cylinders. The feed frame extends along a feed axis and includes a plurality of guide bars aligned parallel to the feed axis. The feed device is supported for movement relative to the feed frame in a direction parallel to the feed axis. The feed device includes a first guide member and a second guide member. The first guide member engages a surface of at least one of the guide bars, and the second guide member engages another surface of at least one of the guide bars.
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公开(公告)号：US11180992B2
公开(公告)日：2021-11-23
申请号：US16795184
申请日：2020-02-19
摘要： Methods and systems of monitoring and controlling a longwall mining system. One system includes a shearer including a cutter drum and a sensor mounted to the shearer. The system also includes an electronic controller including a processor and a memory, the electronic controller communicatively coupled to the sensor. The electronic controller is configured to receive vibration data from the sensor and determine a current vibration level experienced by a cutter drum of the shearer based on the vibration data. The electronic controller is also configured to compare the current vibration level to a vibration threshold. The electronic controller is also configured to detect an impact event associated with the cutter drum of the shearer based on the comparison and generate an impact event indication associated with the impact event.
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公开(公告)号：US11174731B2
公开(公告)日：2021-11-16
申请号：US15952567
申请日：2018-04-13
IPC分类号： E21D20/00 , E21B7/02 , G06T7/00 , G01C3/08 , G01C3/14 , G06K9/62 , G06K9/32 , G06T7/62 , G06T7/73 , B62D11/02 , G01V8/10 , G01V1/00
摘要： A industrial machine including a chassis, a first sensor configured to sense a roof bolt, a second sensor configured to sense the roof bolt, and a controller. The controller configured to receive sensor information from the first and second sensors, and determine a location of the roof bolt based on the sensor information from the first and second sensor.
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公开(公告)号：US20210285327A1
公开(公告)日：2021-09-16
申请号：US17200348
申请日：2021-03-12
摘要： A longwall mining system including a longwall shearer having cutting drums. The cutting picks on the cutting drum are monitored for wear using imaging devices mounted to the longwall mining system. Methods for monitoring wear includes a controller receiving image data from an imaging device directed at a cutting drum of a shearer. The controller analyzes the image data to determine a wear level of a cutting pick on the cutting drum. The controller then determines the wear level exceeds a wear threshold and, in response, generates an alert indicating that the cutting pick is worn in response to determining that the wear level exceeds the wear threshold.
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公开(公告)号：US11035232B2
公开(公告)日：2021-06-15
申请号：US16222609
申请日：2018-12-17
摘要： An industrial machine including a sensor and a controller. The sensor is configured to sense a characteristic of a fluid of the industrial machine. Wherein the characteristic is indicative of a contaminant level. The controller has an electronic processor and a memory. The controller is configured to receive a signal from the sensor indicative of the contaminant level, compare the contaminant level to a threshold, and upon the contaminant level crossing the threshold perform at least one selected from a group consisting of output an alert, and commence a shutdown procedure of the industrial machine.
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公开(公告)号：US10989050B2
公开(公告)日：2021-04-27
申请号：US16820224
申请日：2020-03-16
IPC分类号： E21C27/00 , E21C27/20 , E21D9/10 , E21C27/02 , E02F9/28 , E02F5/18 , B26D1/00 , E21B3/02 , E21C25/06 , E21C25/18 , E21C27/16 , E21C31/02 , E02F5/20 , E21B3/03
摘要： A cutting device for engaging a rock face includes a disc body supported for rotation about an axis of rotation, and a plurality of peripheral portions removably secured to the disc body. Each of the peripheral portions including a plurality of cutting bits positioned on a peripheral edge. The peripheral edge of each peripheral portion is aligned with the peripheral edges of adjacent peripheral portions.
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公开(公告)号：US10981728B2
公开(公告)日：2021-04-20
申请号：US16572133
申请日：2019-09-16
IPC分类号： B65G19/20 , B65G17/40 , E21C35/20 , B65G21/20 , B65G17/06 , B65G19/18 , B65G19/24 , E21F13/06 , B65G17/44 , B65G19/08 , B65G23/06 , B65G17/26 , B65G21/12 , E21C25/34 , E21C31/06 , B65G23/08 , B65G23/22 , B65G17/38 , B65G19/26 , B65G19/22 , E21C31/12
摘要： In some aspects, a conveyor chain includes a first link, a second link, and a coupler link coupled between the first link and the second link. The first link includes a first portion and a second portion, the second portion oriented parallel to and laterally spaced apart from the first portion. The first portion includes a first sprocket-engaging pin protruding laterally, and the second portion includes a second sprocket-engaging pin protruding laterally. The second link includes a first portion and a second portion. The first portion includes a first sprocket-engaging portion protruding laterally, and the second portion includes a second sprocket-engaging portion protruding laterally. A flight bar is positioned adjacent an end of the first sprocket-engaging portion of the first link.
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