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21.发明公开公开(公告)号：US20230400867A1
公开(公告)日：2023-12-14
申请号：US18260388
申请日：2022-04-25
Inventor： Yunyue XIE , Shaoqi ZHANG , Weikang SONG , Maolin TIAN , Hongtian XIAO , Zhaosheng MENG
IPC: G05D3/20
CPC classification number: G05D3/20
Abstract: A monitoring and controlling method for a supporting pose of a hydraulic support includes reading length parameters of props; establishing a pose monitoring mathematic model; based on an interpolation algorithm, obtaining pose parameters including associated pose parameters of an angle of height, an angle of roof attachment, and angles of inclination of the props. The method further includes based on the support pose monitoring process, determining a current supporting pose; obtaining a contour line of a roof above the support, and determining a bulging edge of the roof; obtaining a height difference of a support canopy and the roof; calculating a target height and a target angle of roof attachment of the hydraulic support; based on a pose control mathematic model, calculating a target angle of height of the support; and substituting the target parameters into the pose monitoring mathematic model to solve target lengths of the props.
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22.发明公开公开(公告)号：US20230400397A1
公开(公告)日：2023-12-14
申请号：US17807244
申请日：2022-06-16
Inventor： Xuesheng LIU , Shenglong YANG , Yunliang TAN , Deyuan FAN , Xuebin LI , Hu SONG
CPC classification number: G01N3/34 , G01N2203/0252 , G01N2203/0005 , G01N33/24
Abstract: A cyclic dynamic loading-confining pressure instantaneous unloading test device includes a load-supporting frame system, a cyclic dynamic loading system, a confining pressure loading system, a monitoring system, a control system and a data analysis system; the top of the load-supporting frame system is equipped with the cyclic dynamic loading system, the cyclic dynamic loading system is connected with the control system, the bottom of the load-supporting frame system is equipped with the confining pressure loading system, the cyclic dynamic loading system and the confining pressure loading system are equipped with the monitoring system, the monitoring system and the control system are connected with the data analysis system.
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公开(公告)号：US11834949B2
公开(公告)日：2023-12-05
申请号：US18178385
申请日：2023-03-03
Inventor： Weiyao Guo , Lexin Chen , Yan Tan , Yunliang Tan , Tongbin Zhao
Abstract: A collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting provided by the disclosure includes the following steps: step 1, driving into a coal seam to release pressure; step 2, low roof pre-splitting during driving process; step 3, supporting of roadway surrounding rock and support reinforcement; step 4, floor destressing of the roadway; step 5, high roof pre-splitting before mining; step 6, destressing and supporting of the advanced roadway surrounding rock during the mining process of the working face. The collaborative erosion-control method of releasing-splitting-supporting based on coal mass pressure relief and roof pre-splitting, and to carry out local pressure relief, roof pre-splitting and reinforcement support construction in the whole cycle of the coal working face in a progressive manner, so as to achieve the prevention and control of rock burst in the working face.
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公开(公告)号：US20230313859A1
公开(公告)日：2023-10-05
申请号：US18043733
申请日：2021-06-15
Inventor： Chenglong WANG , Meng CHEN
CPC classification number: F16F13/007 , F16F9/3242 , F16F9/34 , F16F9/368 , F16F9/535 , F16F7/12 , F16F9/3292 , F16F2226/048 , F16F2226/04 , F16F2224/02 , F16F2228/066 , F16F2222/12 , F16F2230/08 , F16F2230/18 , F16F2230/30 , F16F2230/42 , F16F2232/08 , F16F2236/045
Abstract: Disclosed are a compound impact-resistant device and an application thereof. The compound impact-resistant device includes an inner cylinder, a first pressure sensor and an outer cylinder; an inner cavity of the inner cylinder is connected to a magnetorheological damper, a spiral valve element, a floating piston and a spring from bottom to top; and the outer cylinder is connected to a piston rod, a bottom end of the piston rod penetrates a top of the inner cylinder, the spring and the floating piston to be connected to the spiral valve element, and a portion below the spiral valve element is filled with hydraulic oil. The compound impact-resistant device can provide specific initial support force and achieve active self-adaptation to dynamic impact, thus solving the problems that traditional hydraulic buffers cannot provide initial support force and traditional mechanical crushing members have difficulty in providing large support force.
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公开(公告)号：US11691043B2
公开(公告)日：2023-07-04
申请号：US17868037
申请日：2022-07-19
Inventor： Xiangming Hu , Weimin Cheng , Bingrui Yan , Yanyun Zhao , Di Xue , Mingyue Wu , Zhenglong He , Guangxing Bai , Zonglei Mou
CPC classification number: A62D1/005 , B01D11/0288 , C09K21/02 , C09K21/06 , E21F15/005
Abstract: Provided is a multi-functional plugging agent for a coal mine and a preparation method thereof. The preparation method comprises: by taking Ecklonia Kurome Okam as a raw material, mixing an Ecklonia Kurome Okam suspension with phosphorus pentoxide for reaction, then performing biodegradation to obtain an Ecklonia Kurome Okam biological extract, adding urea for neutralization, mixing a neutralization product with an inorganic catalyst and melamine for reaction to obtain a bio-based plugging synergist solution, finally cooling the bio-based plugging synergist solution, and mixing the cooled bio-based plugging synergist solution with a certain amount of pentaerythritol and ammonium polyphosphate to obtain the multi-functional plugging agent for the coal mine based on the Ecklonia Kurome Okam biological extract. According to the invention, not only a coal crack can be effectively plugged for a long time, but also an efficient flame-retardant effect can be achieved in a complete period of coal spontaneous combustion.
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Patent Agency Ranking
公开(公告)号：US20230134633A1
公开(公告)日：2023-05-04
申请号：US17781812
申请日：2021-04-16
Inventor： Linjing XIAO , Yu WANG , Yulong ZHANG , Yanxin LI , Qinghui SONG , Qiang LIU
IPC: E21C50/02
Abstract: A self-propelled towing simulator for a hydraulic lift system carries a gyro pose control system and a six-degree-of-freedom (DOF) platform to control the overall pose of the simulator, so that the simulator simulates six-DOF motion states including swaying, surging, yawing, rolling, pitching and heaving generated by a mining vessel under the combined action of waves and flows and required by the experimental working conditions; interventions in the pose of the simulator may be positive or negative, so that the simulator may be applied to the uncontrollable natural water bodies so as to approximate to the working conditions of the experimental requirements. The simulator may carry out experiments in open natural water bodies by use of its own autonomous sailing capability under remote wireless control and may acquire parameters such as dynamic characteristics and spatial configuration and the like of a deep-sea mining hydraulic lift subsystem in real time.
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公开(公告)号：US11624635B1
公开(公告)日：2023-04-11
申请号：US17910024
申请日：2021-06-21
Inventor： Lijun Li , Tianzong Xu , Qian Ma , Xiaolei Liu , Jianhong Sun , Zhaochuan Zhang
IPC: G01D5/353
Abstract: The present invention provides a method for realizing high stability of micro-nano optical fiber sagnac loop output by means of filter mode control, and belongs to the field of photoelectric detection technologies. In the present invention, the optical filter is combined with the micro-nano optical fiber Sagnac interference structure so as to control the Sagnac in-loop working mode by use of the mode selection characteristics of the filter. In this way, the interference mode is suppressed to better concentrate energy on the working mode, thereby improving the spectrum output uniformity and stability of the Sagnac loop. Further, the reflection and transmission modes of the optical filter do not participate in interference spectrum output and thus the performance of the system will not be affected. By designing and changing the parameters of the optical filter, the output characteristics of the interferometer can be dynamically controlled.
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公开(公告)号：US11480263B2
公开(公告)日：2022-10-25
申请号：US17435704
申请日：2020-05-07
Inventor： Chenglong Wang , Genyuan Miao , Yifang Chen , Xueting Wang , Meng Chen , Qingliang Zeng
Abstract: Disclosed is a magnetically controlled material-based magnetorheological pilot operated safety valve for a hydraulic support. The safety valve comprises a valve body, a valve core, a reset spring, and a pilot valve; the valve core is disposed in a valve core chamber provided in the valve body, and the pilot valve is disposed in a pilot valve chamber provided in the valve body; the pilot valve includes a magnetically controlled shape memory alloy, an electromagnet, a push rod, a piston, a magnetorheological fluid control coil, and a pilot valve core, which are arranged sequentially from left to right; a plurality of magnetically controlled material control coils are provided on the electromagnet; the magnetically controlled shape memory alloy runs through the electromagnet and is then connected to the push rod, the push rod is connected to the piston, the magnetorheological fluid lies between the piston and the pilot valve core.
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公开(公告)号：US20220299387A1
公开(公告)日：2022-09-22
申请号：US17633083
申请日：2021-08-11
Inventor： Lijun LI , Tianzong XU , Qian MA , Zhaochuan ZHANG , Jiajun SHEN
Abstract: An intelligent optical fiber tactile sounding system and a method thereof, and belongs to the field of intelligent optical fiber sensing. The system includes a flexible optical fiber tactile sensing array, a photoelectric detection system, an intelligent pressure analysis software and an acoustic emission system; a small-scale distributed tactile sensing array is constructed by embedding a fiber-core mismatched optical fiber interferometric sensor into a flexible substrate material and performing sensing region division for an asymmetrical structure with an optical fiber structure as a delimiting line ; a tactile sensor transmits tactile signals to the photoelectric detection system in the form of optical signals, the photoelectric detection system inputs these pressure signals into the intelligent pressure analysis software to determine a region and a size of a tactile source, and then sends an instruction to the acoustic emission system to enable the acoustic emission system to emit different sounds.
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公开(公告)号：US11408806B2
公开(公告)日：2022-08-09
申请号：US16976715
申请日：2018-08-24
Inventor： Wenbin Sun , Houqian Du , Yanchao Xue , Jianli Shao , Liming Yin , Fei Zhou
Abstract: A system and method for monitoring crack propagation of a transparent rock specimen monitors a breakage process of a specimen loading process. In the system and method for monitoring crack propagation of a transparent rock specimen, under the condition of no contact with a rock specimen, intensity changes of laser light passing through the transparent rock specimen in a loading state are determined, such that a computer (5) forms, according to laser intensity change data, a three-dimensional diagram of crack propagation of the transparent rock specimen (4) in a continuously loaded state at a plurality of set time points. This is used to analyze a breakage starting point and a crack propagation path and process of the transparent rock specimen (4) in the loading state, and achieve the purpose of qualitative analysis of the rock specimen.
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