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11. 发明授权

US11440740B2 Frictional force monitoring system for middle troughs of scraper conveyor 有权
公开(公告)号：US11440740B2
公开(公告)日：2022-09-13
申请号：US17418853
申请日：2019-11-26
申请人： China University of Mining and Technology
发明人： Dagang Wang , Ruixin Wang , Zhencai Zhu , Huilong Zhu , Gang Shen , Xiang Li , Yu Tang
IPC分类号： B65G43/00 , B65G19/28 , B65G47/76 , G01K13/00 , G01L5/16 , G01N19/02
摘要： 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.

12. 发明授权

US11371522B2 Permanent magnet direct-drive slurry pump based on gas film drag reduction 有权
公开(公告)号：US11371522B2
公开(公告)日：2022-06-28
申请号：US17425334
申请日：2020-07-02
申请人： China University of Mining and Technology , SHANDONG ZHANGQIU BLOWER CO., LTD.
发明人： Fangwei Xie , Shupeng Fang , Zuzhi Tian , Gang Shen , Zhencai Zhu , Haifang Zhang , Honglei Li , Chunjie Xu , Wancai Zhou
IPC分类号： F04D29/22 , F04D29/68 , F04D7/04 , F04D13/06 , F04D29/62 , F04D29/20 , F04D29/043 , F04D29/12 , F04D29/58 , F04D29/06 , F04D13/08 , F04D29/28 , F04D29/10 , F04D13/02 , F04D29/66 , F04D29/24
摘要： Disclosed is a permanent magnet direct-drive slurry pump based on gas film drag reduction, which includes a permanent magnet motor, a main shaft, an impeller, and a valve block. The permanent magnet motor includes a housing, a stator core, stator windings, a rotor core, and a permanent magnet. The rotor core and the impeller share the main shaft, and an airflow channel is provided inside the main shaft. The impeller includes a front cover plate, a back cover plate, and blades. The blades are modularly manufactured, and blade gas jet holes and hemispherical pits are provided on the pressure surface. The airflow channel in the main shaft is communicated with the blade gas-jet holes. The valve block is disposed at the tail end of the main shaft so as to control gas exhaust and prevent liquid from entering the shaft. The present invention has such advantages as a small size, high efficiency, and strong wear resistance.

13. 发明授权

US10989695B2 Online monitoring system for crack on hoist spindle and operation method thereof 有权
公开(公告)号：US10989695B2
公开(公告)日：2021-04-27
申请号：US16760040
申请日：2019-07-01
申请人： China University of Mining and Technology
发明人： Zhencai Zhu , Hao Lu , Shuang Cao , Yuxing Peng , Gongbo Zhou , Guohua Cao , Gang Shen , Wei Li , Dagang Wang , Fan Jiang
IPC分类号： G01N29/04 , G08C17/02 , B66D1/48 , G01N29/22
摘要： Disclosed are an online monitoring system for a crack on a hoist spindle and an operation method thereof. The system comprises: a rope power part, a crack detection part, a wireless transmission part, and a computer. The rope power part comprises two traction ropes, two guide wheels, two stepper motors, and two stepper motor drivers. The crack detection part comprises a spiral tube guide rail, a sliding body, and an ultrasonic generator. The wireless transmission part comprises three zigbee wireless sensing modules. The zigbee wireless sensing modules receive instructions from the computer and transmit the instructions to the stepper motor drivers to control the motors to rotate. The stepper motors drive the guide wheels to rotate to realize the winding of the ropes, so as to pull the sliding body to slide on the spiral tube guide rail. The ultrasonic generator clamped on the sliding body monitors the rotating spindle along the spiral tube guide rail. The zigbee wireless sensing modules transmit the detected data to the computer in real time. The present invention can effectively monitor a hoist spindle in time before a failure occurs, thereby avoiding safety accidents.

14. 发明授权

US10882700B1 Embedded scraper rotation angle detection device for scraper conveyor and detection method 有权
公开(公告)号：US10882700B1
公开(公告)日：2021-01-05
申请号：US16967735
申请日：2019-09-12
申请人： China University of Mining and Technology , ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY , HUAIHAI INSTITUTE OF TECHOLOGY
发明人： Yu Tang , Zhencai Zhu , Gang Shen , Yongcun Guo , Xiang Li , Jinsong Chen , Tongqing Li , Dagang Wang , Guohua Cao , Wei Li , Gongbo Zhou , Yuxing Peng , Hao Lu
IPC分类号： B65G43/00 , B65G19/22
摘要： The present invention discloses an embedded scraper rotation angle detection device for a scraper conveyor and a detection method. The detection device includes two extensible detection devices, two signal detection units and a remote processing unit. The two extensible detection devices and the two signal detection units are disposed at two ends of a scraper respectively. The signal detection units detect movement displacements of the extensible detection devices in real time and send out signals through wireless transmission modules, the wireless transmission modules and a wireless receiving module are used for data transmission, and a signal display processing module is used to calculate a rotation angle value of the scraper in real time, output and display the rotation angle value simultaneously, compare the rotation angle value measured in real time with a set safety threshold, and send out an alarm indication when the rotation angle value exceeds the safety threshold.

15. 发明授权

US10870559B2 Apparatus and method for measuring rotational angle of sinking platform 有权
公开(公告)号：US10870559B2
公开(公告)日：2020-12-22
申请号：US16075945
申请日：2017-11-13
申请人： China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD
发明人： Guohua Cao , Yandong Wang , Zhencai Zhu , Weihong Peng , Gang Shen , Shanzeng Liu , Chunli Hua , Zhenhua Jiang , Xuan Dong
IPC分类号： B66C13/16 , B66C13/46
CPC分类号： B66C13/16 , B66C13/46
摘要： An apparatus and a method for measuring a rotational angle of a sinking platform. The apparatus includes a sinking platform being a subject to be measured, suspension ropes and guide ropes connected to the sinking platform, a carriage assembled on the guide ropes, a gyroscope and a gyroscope signal radio transmitter mounted at an upper end of the carriage, and a tilt angle sensor and a radio signal reception processor mounted on the sinking platform. During running of the carriage, the gyroscope keeps measuring a pose of the carriage, and a measured signal is transmitted to the radio transmitter in a wired manner. The radio transmitter transmits a pose signal of the carriage during running to the radio signal reception processor in a wireless manner. A turning angle of the sinking platform in the y direction is accurately obtained by subtracting a pose of the carriage being located at the top of the guide ropes from a pose of the carriage being located at the bottom of the guide ropes. Tilt angles of the sinking platform in the x direction and the z direction can be measured in real time by using the tilt angle sensor. Therefore, rotational angles of the sinking platform in three directions can be conveniently and accurately measured.

16. 发明授权

US10815098B2 Multiple-state health monitoring apparatus and monitoring method for critical components in hoisting system 有权
公开(公告)号：US10815098B2
公开(公告)日：2020-10-27
申请号：US16304127
申请日：2017-12-27
申请人： China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
发明人： Gongbo Zhou , Zhencai Zhu , Wei Li , Yuxing Peng , Guohua Cao , Ping Zhou , Xin Shu , Benliang Hao , Chaoquan Tang , Lin Luo
IPC分类号： B66B7/12 , B66B5/00 , B66B7/06 , G01N21/952
摘要： A multiple-state health monitoring apparatus for critical components in a hoisting system includes a frame. The frame is a square structure formed by welding a plurality of rectangular steels. A steel wire rope is arranged around a periphery of the square structure. A power system, a friction-and-wear apparatus, a brake-and-wear apparatus, and a tensioning apparatus are sequentially mounted from left to right on a bottom layer of the square structure. A bearing signal collection system, a tension sensor, an excitation apparatus, and a steel-wire-rope image collection system are sequentially mounted from left to right on a top layer of the square structure. The steel wire rope sequentially passes through all the apparatuses or systems and is driven by the power system to perform circling. All the apparatuses or systems are used to monitor an operation status of the steel wire rope.

17. 发明授权

US10422709B2 Method of estimating tension of chain of scraper conveyor 有权
公开(公告)号：US10422709B2
公开(公告)日：2019-09-24
申请号：US15548126
申请日：2016-12-02
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Zhencai Zhu , Wei Li , Xing Zhang , Jiang Fan , Gongbo Zhou , Yuxing Peng , Guohua Cao
IPC分类号： G01L5/10 , G01L5/04
摘要： Disclosed is a method for estimating tension of a chain of a scraper conveyor, belonging to a method for estimating chain tension. The method comprises the following steps: embedding strain sensors in a plurality of scrapers of a scraper conveyor to measure the tension of weak coupling points between the scrapers and chains, converting acquired sensor signals into data signals through an A/D conversion unit, transmitting the data signals to a data control center using a wireless transmission module, further processing the tension data information of the weak coupling points through the data control center, establishing a chain tension distribution model, and determining an the estimated tension of the chain of the scraper conveyor. The method provided by the present invention is simple, efficient and practical, and the estimation of tension of the whole continuous moving chain is completed by the tension measurement at limited positions of the chain. The chain of the scraper conveyor is meshed with a sprocket and continuously moves in a middle trough and its tension also changes in real time along with the load; the strain sensors are arranged on the scrapers to measure the tension of the weak coupling points between the scrapers and the chains, and the estimation of tension of the whole chain is completed by tension measurement at limited positions on the chain.

18. 发明授权

US10288549B2 Detection device and method for improving layer-to-layer transition of steel wire ropes 有权
公开(公告)号：US10288549B2
公开(公告)日：2019-05-14
申请号：US16079521
申请日：2017-03-02
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Yuxing Peng , Zhencai Zhu , Wenxue Xu , Zhiyuan Shi , Xiansheng Gong , Xiangdong Chang , Dagang Wang , Guohua Cao , Songyong Liu
IPC分类号： G01N19/02 , G01L5/06
摘要： Systems and methods for detecting a layer-to-layer transition of a lifting steel wire rope on a reel are described. The system includes a reel assembly for winding a steel wire rope on a reel and a tensioning assembly for tensioning a segment of said steel wire rope. The system further includes a loading assembly and a lead screw sliding assembly. The loading assembly provides a vertical loading to the tensioning assembly so as to generate a loading force between the tensioned steel wire rope and the steel wire rope wound around the reel. The lead screw sliding assembly drives the tensioning assembly so as to move on a horizontal guide rail to generate a relative displacement between the tensioned steel wire rope and the steel wire rope wound around the reel. The tensioning assembly is connected to the loading assembly via a first threaded rod and a static torque sensor.

19. 发明授权

US10065804B1 Chain fault diagnosis system and method for scraper conveyor 有权
公开(公告)号：US10065804B1
公开(公告)日：2018-09-04
申请号：US15571045
申请日：2016-12-07
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Fan Jiang , Zhencai Zhu , Wei Li , Sunyang Wu , Gongbo Zhou , Guohua Cao , Yuxing Peng , Hao Lu , Chunli Hua
IPC分类号： B65G43/06 , B65G19/08 , G01L1/22 , B65G19/22
摘要： A chain fault diagnosis system and a chain fault diagnosis method for a scraper conveyor are provided. The diagnosis system includes a strain rosette attached on a top end surface of each sprocket tooth of the scraper conveyor. The strain rosette is connected to a signal gathering unit fixed on a scraper conveyor roller through a shielded conductor, the signal gathering unit sends a gathered signal to a wireless receiving device by means of wireless transmission, and the wireless receiving device transmits the gathered signal obtained thereby to an industrial control computer through a USB interface. The diagnosis method includes the following three steps: chain dislocation/skip fault judgment, chain breakage fault judgment and chain seizure fault judgment. A comprehensive monitoring of the chain state of the scraper conveyor is performed by measuring strain magnitudes in different directions of the sprocket tooth in real-time, transmitting the gathered signal to the industrial control computer via a wireless transmission method and dynamically diagnosing the faults of seizure, dislocation, skip and breakage of the scraper conveyor chain based on the obtained strain data.

20. 发明申请

US20180162700A1 A LAP JOINT PLATFORM OF LARGE-LOAD LIFTING CONTAINER 审中-公开
公开(公告)号：US20180162700A1
公开(公告)日：2018-06-14
申请号：US15112392
申请日：2015-07-09
申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY
发明人： Zhencai Zhu , Guohua Cao , Yang Yang , Weihong Peng , Yuxing Peng , Gongbo Zhou , Wei Li , Shanzeng Liu
IPC分类号： B66B17/18
CPC分类号： B66B17/18 , B66B17/16
摘要： A lap joint platform of a large-load lifting container, comprising a machine frame (18), a rocker arm platform (14), a rear rocker arm platform (17), a locking device and lifting devices. The rocker arm platform (14) is hinged with the top of the machine frame (18) through a shaft set (15) and is provided with mine car rails (24) and a rubber-tired vehicle support face (26). The rear rocker arm platform (17) is fixed with the top of the machine frame (18) through bolts. The locking device is arranged below the rocker arm platform (14) and comprises a locking lower sliding block cover plate (7), a locking lower sliding block (9), a locking upper sliding block (10), a locking oil cylinder front support (11), a locking lower sliding block guide rail (12), a locking inclined rail (13) and a locking oil cylinder (16). The lifting device is arranged below the locking device and comprises a connecting rod lower support (1), a support pawl connecting rod (2), a support pawl push rod (3), a support pawl (5), a support pawl rear end (6), a support oil cylinder rear base (19), a support oil cylinder (20), an anti-collision rear buffer base (21), an anti-collision buffer (22) and a support guide block (23). The lap joint platform is stable in the loading and unloading process, simple to operate and large in steel wire rope compensation height.

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