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公开(公告)号：US11807465B2
公开(公告)日：2023-11-07
申请号：US17802188
申请日：2021-06-15
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Hao Lu , Hui Jiang , Zhencai Zhu , Guohua Cao , Yuxing Peng , Gongbo Zhou , Gang Shen , Fan Jiang , Yu Tang , Xiang Li , Wei Wang
Abstract: The present disclosure provides a system for monitoring a scraper chain based on a measurement on transmittance of a torsion spring and a method thereof. The system includes a sprocket-wheel torsion detection device, a fixing device, a wireless receiver, an A/D converter and an industrial computer. In the method, the relative torsion of the two sprocket wheels is converted into the density change of the torsion spring, the light transmission area is converted into the current value by the laser sensing panel, a varying range of the torsion spring is calculated by the industrial computer through the preset threshold and its own program to monitor the operating conditions of the chain. The method has a novel concept, a stable and reliable system, and a high promotion value.
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公开(公告)号：US11761334B2
公开(公告)日：2023-09-19
申请号：US17996664
申请日：2022-01-17
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Shaoyi Xu , Zhencai Zhu , Wei Li , Wenting Lu , Gang Shen , Songyong Liu , Fangfang Xing , Hongxiang Jiang , Lei Si
CPC classification number: E21D9/003 , E21C35/24 , E21C39/00 , E21D9/108 , E21D9/1006
Abstract: An apparatus includes a current excitation source, a roadheader telescopic protection cylinder, an electric rotating apparatus, auxiliary cutting teeth, a cutting head entity, a transmission shaft, an optical fiber ring protective housing, an optical fiber ring, an optical fiber current sensor control unit and a recovery electrode. The apparatus transmits an auxiliary current Ie and a monitoring current Id to a coal seam. The auxiliary current Ie and the monitoring current Id are homologous currents that are incompatible, and the auxiliary current Ie squeezes the monitoring current Id, so the monitoring current Id monitors the environment of the coal seam. The monitoring current Id flows to the coal seam as, and a return current If flows through the transmission shaft and a roadheader expansion part. The optical fiber ring measures the return current If, when the roadheader is heading forward and encounters abnormal geological bodies.
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23.发明授权公开(公告)号：US11155419B1
公开(公告)日：2021-10-26
申请号：US17042952
申请日：2019-07-26
Applicant: China University of Mining and Technology
Inventor： Hao Lu , Zhencai Zhu , Fan Jiang , Wei Li , Yuxing Peng , Gongbo Zhou , Gang Shen , Dagang Wang , Yu Tang , Xiang Li
Abstract: The present invention discloses a dynamic reliability evaluation method for coupling faults of a middle trough of a scraper conveyor. Approximation precision of a moment-based saddlepoint approximation method and a function attribute of dynamic t-copula are fully utilized, and the dynamic reliability evaluation method for the coupling faults of the middle trough of the scraper conveyor is provided, so that dynamic correlation between failure modes of the middle trough of the scraper conveyor under a small sample condition is more accurately described, and accuracy of dynamic reliability evaluation of the coupling faults of the middle trough of the scraper conveyor is improved.
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公开(公告)号：US10233755B2
公开(公告)日：2019-03-19
申请号：US15741192
申请日：2016-08-11
Applicant: China University of Mining and Technology
Inventor： Songyong Liu , Zhencai Zhu , Changlong Du , Hongxiang Jiang , Wei Li , Gang Shen , Yuxing Peng , Hongsheng Li
Abstract: A drilling and bursting heading machine, comprising a drilling and bursting device (1), an angle control device, a forward-backward telescopic device and a cantilever type heading machine (2), wherein the drilling and bursting device (1) is mounted on a forward-backward moving component of the forward-backward telescopic device by means of the angle control device, and the forward-backward telescopic device is mounted on the cantilever type heading machine (2); the drilling and bursting device (1) comprises a fixing support (1-20), as well as a rock drill component and a bursting component fixedly mounted on the fixing support (1-20) respectively; the angle control device comprises a mounting base (1-15), an auxiliary rotary hydraulic motor (1-14), an adjustment hydraulic cylinder (1-13) and a main rotary hydraulic motor (1-12); and when the forward-backward moving component of the forward-backward telescopic device completely extends out, the distance from a front end of the drilling and bursting device (1) to a working plane is shorter than the distance from a front end of a cutting head of the cantilever type heading machine (2) to the working plane. The drilling and bursting heading machine has a compact structure and is able to implement quick drilling and bursting on a hard rock stratum having a rock hardness f greater than 10 without increasing the energy consumption, so that the heading efficiency is improved and potential safety risks are reduced.
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25.发明授权公开(公告)号：US09708160B2
公开(公告)日：2017-07-18
申请号：US15124266
申请日：2015-06-16
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Zhencai Zhu , Xiao Chen , Guohua Cao , Hong Lai , Wenxiang Teng , Gang Shen , Gongbo Zhou , Wei Li
Abstract: A tensioning device and a tensioning method for a steel wire rope of a cage guide of an ultra-deep vertical shaft. The tensioning device comprises an upper rope clamping device, a rope adjustment guide frame, a lower hydraulic rope locking device, and a lower hydraulic rope adjustment device. The upper rope clamping device is provided with a rope clamp and a pressure sensor. The rope adjustment guide frame comprises a steel frame body, double fixed clamp-plates, a balance weight, and a balance weight steel wire rope. Double moving clamp-plates are disposed in a guide groove of the steel frame body. The double moving clamp-plates are provided with a rope clamp and a lower guide pulley. The double fixed clamp-plates are provided with an upper guide pulley. The balance weight is provided with a fastening joint. Each of the upper rope clamping device, the lower hydraulic rope locking device and the lower hydraulic rope adjustment device comprises a wedged iron block and a shim. Each of the lower hydraulic rope locking device and the lower hydraulic rope adjustment device further comprises a lever wedge adjustment mechanism and a wedge adjustment hydraulic cylinder. A wedge adjustment hydraulic pressing rod is connected to the wedged iron block. The bodies of the wedge adjustment hydraulic cylinders are connected to the shims. The tensioning device and the tensioning method can be used for implementing automatic adjustment and control of the tensile force of the steel wire rope of the cage guide of the ultra-deep vertical shaft.
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Patent Agency Ranking
26.发明授权公开(公告)号：US12195307B1
公开(公告)日：2025-01-14
申请号：US18270230
申请日：2022-09-19
Applicant: China University of Mining and Technology
Inventor： Zhencai Zhu , Yu Tang , Gang Shen , Xiang Li , Mengmeng Gao , Wei Wang , Yuxing Peng , Gongbo Zhou , Hao Lu , Qingguo Wang
Abstract: The disclosure discloses a device for detecting idling time of a brake shoe of a monorail hoist and a detection method thereof. The device includes a contact detection unit, a common end roller unit, an idling time detection unit and detection lines. The contact detection unit installed on a brake of the monorail hoist includes a tube in connection with the brake shoe. The common end roller unit is installed on a frame of the monorail hoist and corresponds to a travelling track. A metal probe corresponding to the travelling track is arranged inside the tube. A limiting bolt corresponding to a raised cylindrical block formed on the metal probe is formed on an inner side wall of the tube. The metal probe is contactable with the travelling track or the limiting bolt when the brake shoe brakes.
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27.发明授权公开(公告)号：US12195063B2
公开(公告)日：2025-01-14
申请号：US18034386
申请日：2022-09-30
Inventor： Fan Jiang , Zhencai Zhu , Xingtao Huang , Gongbo Zhou , Niansheng Liu , Libing Wang , Chuansheng Zhang , Yuxing Peng , Gang Shen , Chaofan Zhang , Wenwen Yi , Shuman Cheng , Zhengxu Wang
IPC: B61L25/02
Abstract: The present disclosure discloses a method for positioning an auxiliary transportation vehicle in a coal mine and a positioning system thereof. The method comprises: acquiring a rotation velocity of each wheels and a rotation angle of a steering wheel, constructing a kinematics model based on wheels not for steering of the vehicle and a kinematics model based on wheels for steering of the vehicle respectively, and constructing a kinematics model based on a geometric center of the vehicle according to the above two kinematics models; and according to a travelling condition of the vehicle, integrating the kinematics model based on the geometric center with a strap-down inertial navigation system for positioning, when the vehicle is in a normal travelling state; and integrating, the kinematics model based on the wheels not for steering with the strap-down inertial navigation system for positioning, when the vehicle is in an abnormal travelling state.
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公开(公告)号：US12098639B2
公开(公告)日：2024-09-24
申请号：US18013908
申请日：2022-08-31
Inventor： Gang Shen , Zhencai Zhu , Song Qu , Yunjie Sa , Yu Tang , Xiang Li , Guan Yuan , Zhiou Xu , Jiaqi Zhao , Pengpeng Chen
Abstract: The present application relates to an attitude self-correcting underground transportation apparatus based on UWB technology and a control method thereof. A transport clamping and fastening mechanism is mounted on an upper platform part of a six-degree-of-freedom motion platform. An attitude perception and sensing set at least includes three UWB tags being configured to acquire position information. A control module is electrically connected to the attitude perception and sensing set, the six-degree-of-freedom motion platform, and the transport clamping and fastening mechanism separately, and is configured to send an electric signal to drive the six-degree-of-freedom motion platform and the transport clamping and fastening mechanism to grip an object to be transported, collect positioning information of the attitude perception and sensing set, calculate the attitude of the six-degree-of-freedom motion platform in real time, and perform attitude adjustment with reference to an expected position and attitude to maintain a smooth transportation process.
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29.发明授权公开(公告)号：US11893547B2
公开(公告)日：2024-02-06
申请号：US17919285
申请日：2021-02-23
Applicant: China University of Mining and Technology
Inventor： Hao Lu , Zhencai Zhu , Yuxing Peng , Gongbo Zhou , Gang Shen , Yu Tang , Xiang Li , Wei Wang
Abstract: An intelligent reliability evaluation and service life prediction method for a kilometer deep well hoist brake, the method including: the establishment of a digital twin model for a hoist brake, data acquisition and synchronization, and reliability evaluation and service life prediction, wherein the digital twin model for the hoist brake can accurately reflect actual physical characteristics of the hoist brake, the data acquisition and synchronization can realize real-time mapping between a physical entity of the hoist brake and the digital twin model therefor, and furthermore, on the basis of the digital twin model for the hoist brake, the reliability evaluation and service life prediction are realized. Digital twin technology is combined with a reliability analysis method, so that real-time updating of reliability evaluation and service life prediction of the hoist brake are realized.
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30.发明授权公开(公告)号：US11691846B2
公开(公告)日：2023-07-04
申请号：US16772162
申请日：2019-09-12
Applicant: China University of Mining and Technology
Inventor： Gang Shen , Zhencai Zhu , Xiang Li , Yu Tang , Guohua Cao , Gongbo Zhou , Songyong Liu , Yuxing Peng , Hao Lu
CPC classification number: B66B1/28 , B66B19/00 , F15B15/00 , G05B13/042 , G06F30/23 , G06F2111/10
Abstract: The present invention discloses a hoisting container pose control method of a double-rope winding type ultra-deep vertical shaft hoisting system. The method comprises the following steps of step 1, building a mathematical model of a double-rope winding type ultra-deep vertical shaft hoisting subsystem; step 2, building a position closed-loop mathematical model of an electrohydraulic servo subsystem; step 3, outputting a flatness characteristics of a nonlinear system; step 4, designing a pose leveling flatness controller of a double-rope winding type ultra-deep vertical shaft hoisting subsystem; and step 5, designing a position closed-loop flatness controller of the electrohydraulic servo subsystem.
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