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1.发明公开公开(公告)号：US20230169471A1
公开(公告)日：2023-06-01
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
IPC: G06Q10/20
CPC classification number: G06Q10/20
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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2.发明公开公开(公告)号：US20230349295A1
公开(公告)日：2023-11-02
申请号：US18013908
申请日：2022-08-31
Applicant: China University of Mining and Technology
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 surface of an upper platform part of a six-degree-of-freedom motion platform. An attitude perception and sensing set at least includes three UWB tags, the UWB tags in the attitude perception and sensing set being evenly distributed on the side of the upper platform part of the six-degree-of-freedom motion platform. A control module 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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3.发明公开公开(公告)号：US20230348238A1
公开(公告)日：2023-11-02
申请号：US18027374
申请日：2022-03-04
Applicant: China University of Mining and Technology , Xuzhou Liren Monorail Transportation Equipment Co., Ltd.
Inventor： Zhencai ZHU , Hao LU , Yidong ZHANG , Hengzhen HU , Fuping ZHENG , Yu TANG , Kang XU , Yuzhu ZHANG
Abstract: The present disclosure belongs to the technical field of mining equipment, and in particular related to an automatic driving system of a monorail hoist driven based on a digital twin and a method thereof. The system includes a railroad switch sensor module, a positioning system module, a data transferring system, an intelligent control system, a digital twin system and an automatic driving module. The railroad switch sensor module is configured to sense the connection-position state of a movable track in a monorail hoist railroad switch track. The data transferring system is configured to transmit the data on the surface and underground. A bidirectional transmission is performed between the intelligent control system and the railroad switch sensor module, a bidirectional transmission is performed between the intelligent control system and the positioning system module, and a bidirectional transmission is performed between the digital twin system and the intelligent control system.
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公开(公告)号：US20220073283A1
公开(公告)日：2022-03-10
申请号：US17418853
申请日：2019-11-26
Applicant: China University of Mining and Technology
Inventor： Dagang WANG , Ruixin WANG , Zhencai ZHU , Huilong ZHU , Gang SHEN , Xiang LI , Yu TANG
Abstract: A frictional force monitoring system for middle troughs of a scraper conveyor, comprising a scraper conveyor system and a sensing detection system. The scraper conveyor system consists of a machine body, middle troughs, thrust lugs, scrapers, a double chain, a sprocket, a speed reducer, an electric motor and a frequency converter. The sensing monitoring system consists of force receiving modules, a three-dimensional force sensor, and a pre-embedded temperature sensor. The frictional force monitoring system is able to monitor impact loads, frictional forces, friction coefficients, temperature, etc. between an annular chain, coal bulk, and middle troughs of the scraper conveyor under complex and severe operating conditions, and to provide the technical means for the design, safety early-warning and health evaluation of the scraper conveyor, and can provide a data basis for studying friction wear and fatigue breaking mechanism of middle troughs of a scraper machine.
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公开(公告)号：US20210070586A1
公开(公告)日：2021-03-11
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
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. The present invention has the advantages that a system state variable derivation process is omitted, so that a design process of the controllers is greatly simplified. The response time of the controllers can be shortened, and a hoisting container can fast reach a leveling state. In an application process of the system, sensor measurement noise and system non-modeling characteristics can be amplified through state variable derivation, so that tracking errors can be reduced through design of the flatness controller. A control process is more precise, and good control performance is ensured.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20250002304A1
公开(公告)日：2025-01-02
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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公开(公告)号：US20240391509A1
公开(公告)日：2024-11-28
申请号：US18272805
申请日：2022-09-19
Applicant: China University of Mining and Technology
Inventor： Yu TANG , Zhencai ZHU , Gang SHEN , Xiang LI , Mengmeng GAO , Wei WANG , Yuxing PENG , Gongbo ZHOU , Hao LU , Qingguo WANG
Abstract: The disclosure discloses a system for controlling a multi-point synchronous braking of a monorail hoist and a utilization method thereof. The system comprises a contact detection unit, a common end roller unit, a hydraulic unit, a synchronous control unit and connection cables. The contact detection unit is installed on a brake shoe of a monorail hoist. The common end roller unit is installed on a travelling track and connected with a frame of the monorail hoist. The contact detection unit includes a tube in connection with the brake shoe. A metal probe corresponding to the travelling track is arranged inside the tube. A circular boss is formed on the metal probe. A limiting bolt corresponding to the circular boss 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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公开(公告)号：US20230192453A1
公开(公告)日：2023-06-22
申请号：US18001311
申请日：2022-03-25
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY , XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO., LTD.
Inventor： Hao LU , Zhencai ZHU , Yidong ZHANG , Yuxing PENG , Mai DU , Hengzhen HU , Fuping ZHENG , Yu TANG
Abstract: A gear-track-detachable driving device in a monorail crane for a steep slope includes a driving mechanism, a traveling mechanism, a four-bar linkage mechanism, a connection mechanism, a meshing track plate and transition track plates. The driving mechanism includes driving motors, meshing gears, a bearing rod, and a bearing plate. The traveling mechanism includes traveling wheels, clamping wheels, a shell and telescopic struts. The linkage mechanism includes first and second rockers, a linkage, and a cylinder. The connection mechanism includes fixation plates, a connection plate and connection bolts. When the crane travels to the slope front, the cylinder drives the linkage mechanism to send the meshing gears onto the transition track and adjusts the linkage mechanism into a dead point state, and the telescopic struts are locked. After the crane enters the slope, the meshing gears cooperate with the meshing track plate to provide an auxiliary drive for the crane.
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公开(公告)号：US20230118041A1
公开(公告)日：2023-04-20
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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10.发明申请公开(公告)号：US20210316946A1
公开(公告)日：2021-10-14
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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