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公开(公告)号：US20220063927A1
公开(公告)日：2022-03-03
申请号：US17266628
申请日：2020-04-10
Inventor： Gang SHEN , Zhencai ZHU , Kaiyu DAI , Yu TANG , Xiang LI , Yuxing PENG , Hao LU , Guohua CAO , Gongbo ZHOU , Wei LI , Fan JIANG
Abstract: The present invention discloses a drive system of a scraper conveyor and a control method. The drive system includes a nose sprocket, a tail sprocket, a nose sprocket drive mechanism, and a tail sprocket drive mechanism, where the nose sprocket drive mechanism is a hydraulic motor I, and the tail sprocket drive mechanism is a hydraulic motor II; and a hydraulic system that drives the hydraulic motor I and a hydraulic system that drives the hydraulic motor II include same hydraulic elements, and both include a three-position four-way solenoid directional valve, a two-position two-way solenoid directional valve, a two-position three-way solenoid directional valve, an accumulator, and an oil supplement valve group. The present invention is applicable to rapid starting and stopping of the scraper conveyor in a heavy load status while adjusting chain tension in real time, thereby resolving a power imbalance problem in a dual-drive system, and has a simple structure and a long service life.
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12.发明申请公开(公告)号：US20210053805A1
公开(公告)日：2021-02-25
申请号：US17044841
申请日：2019-09-12
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Zhencai ZHEN , Guohua CAO , Gongbo ZHOU , Yu TANG , Fan JIANG , Yuxing PENG , Gang SHEN , Hao LU
Abstract: A tension balance system for steel wire ropes on a friction hoisting driving end of an ultra-deep well includes a friction wheel, left and right guiding wheels, left and right steel wire ropes, left and right adjustment wheels, left and right rewinding wheels, left and right adjustment oil cylinders, a hydraulic pipeline, a pump station, a pipeline switch group, left and right hoisting containers, balance ropes, and reels. The friction wheel is disposed in the middle, the left and right adjustment wheels and the left and right rewinding wheels are circularly distributed around the friction wheel, the left and right guiding wheels, the left and right adjustment wheels, and left and right rewinding wheels are all symmetrically disposed on two sides of the friction wheel; both a quantity of left steel wire ropes and a quantity of right steel wire ropes are even numbers more than 2.
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公开(公告)号：US20190337773A1
公开(公告)日：2019-11-07
申请号：US16075945
申请日：2017-11-13
Applicant: China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
Inventor： Guohua CAO , Yandong WANG , Zhencai ZHU , Weihong PENG , Gang SHEN , Shanzeng LIU , Chunli HUA , Zhenhua JIANG , Xuan DONG
Abstract: 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.
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公开(公告)号：US20190225287A1
公开(公告)日：2019-07-25
申请号：US16093891
申请日：2016-12-07
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Gongbo ZHOU , ZhaoXing GAO , Chaoquan TANG , Zhencai ZHU , Guohua CAO , Ping ZHOU , Hao CHEN
IPC: B62D57/024 , G01D21/02
Abstract: The present invention discloses an apparatus and method for patrol-inspection of a rigid cage channel. The patrol-inspection apparatus comprises a moving member, a transmission member, a driving member, a guide member, and a housing on a main bottom plate. The driving member comprises a tilt sensor and a pressure sensor connected to a microcontroller, the microcontroller is connected to a driver, the driver is connected to a brushless DC motor, and an output shaft of the brushless DC motor is provided with an optical encoder connected to the driver; The moving member comprises a driving output shaft and a driven output shaft, wheel flanges on the driving output shaft and the driven output shaft are each connected with a wheel hub, a permanent magnet is provided in the wheel hub, and a rubber skin is provided on the outer side of the wheel hub; The transmission member comprises a worm connected with the output shaft of the brushless DC motor, a worm wheel on the driving output shaft and meshed with the worm, timing pulleys on the driving output shaft and the driven output shaft, and a timing belt wound on the timing pulleys. The guide member comprises a guide wheel. The present invention increases inspection speed of the rigid cage channel and improves indirectly the production efficiency of the coal mine enterprise.
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公开(公告)号：US20180229941A1
公开(公告)日：2018-08-16
申请号：US15571045
申请日：2016-12-07
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Fan JIANG , Zhencai ZHU , Wei LI , Sunyang WU , Gongbo ZHOU , Guohua CAO , Yuxing PENG , Hao LU , Chunli HUA
CPC classification number: B65G43/06 , B65G19/08 , B65G19/22 , G01L1/2218 , G01L1/2281
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20180120180A1
公开(公告)日：2018-05-03
申请号：US15548126
申请日：2016-12-02
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Zhencai ZHU , Wei LI , Xing ZHANG , Jiang FAN , Gongbo ZHOU , Yuxing PENG , Guohua CAO
IPC: G01L5/10
Abstract: 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.
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17.发明申请GUIDE RAIL ROPE DEFLECTION INHIBITION MECHANISM AND METHOD FOR PARALLEL SOFT CABLE SUSPENSION SYSTEM 有权导轨轨道偏移阻尼机构及并联软电缆悬挂系统方法公开(公告)号：US20160017708A1
公开(公告)日：2016-01-21
申请号：US14418642
申请日：2014-01-22
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Guohua CAO , Jinjie WANG , Zhencai ZHU , Weihong PENG , Yandong WANG , Lei ZHANG , Gang SHEN , Shanzeng LIU
Abstract: A guide rail rope deflection inhibition mechanism and method for a parallel soft cable suspension system in ultradeep vertical shaft construction. The guide rail rope deflection inhibition mechanism comprises a T-shaped installation support base, a rotating frame, a hydraulic support rod, and a chuck. The T-shaped installation support base comprises a vertical support rod and a horizontal support rod. The hydraulic support rod comprises an upper hydraulic support rod and a lower hydraulic support rod. The rotating frame comprises an upper Y-shaped frame and a lower Y-shaped frame. The chuck comprises an upper chuck and a lower chuck. The guide rail rope deflection inhibition method treats two guide rail rope deflection inhibition mechanisms as one group, and arranges at least two groups along the vertical direction on the shaft wall. While guaranteeing the smooth sliding of a direction guiding frame, the freedom of the guide rail rope part is restrained by the chuck, thereby enhancing the stability and safety of hoisting containers.
Abstract translation: 一种用于超静音垂直轴构造的并联软电缆悬挂系统的导轨钢索偏转抑制机构及方法。 导轨绳索偏转抑制机构包括T形安装支撑基座，旋转框架，液压支撑杆和卡盘。 T形安装支撑底座包括垂直支撑杆和水平支撑杆。 液压支撑杆包括上液压支撑杆和下液压支撑杆。 旋转框架包括上Y形框架和下Y形框架。 卡盘包括上卡盘和下卡盘。 导轨钢索偏转抑制方法将两条导轨钢索偏转抑制机构作为一组，沿轴向沿垂直方向排列至少两组。 在保证方向导向架平滑滑动的同时，通过卡盘来限制导轨绳索部分的自由度，提高起重机的稳定性和安全性。
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18.发明申请公开(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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19.发明申请公开(公告)号：US20190362041A1
公开(公告)日：2019-11-28
申请号：US16333218
申请日：2017-12-07
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Hao LU , Zhencai ZHU , Gongbo ZHOU , Yuxing PENG , Guohua CAO , Wei LI , Gang SHEN , Dagang WANG , Fan JIANG
Abstract: A reliability robust design method for multiple failure modes of an ultra-deep well hoisting container, including: defining randomness of a structural parameter, a material property, and a dynamic load of a hoisting container, and solving a random response of a structural failure for a random parameter using a design of experiment method; establishing reliability performance functions of each failure modes in accordance with failure criterion of the hoisting container; establishing a joint probability model of correlated failures using a copula theory in consideration of probability correlation between the failure modes; establishing, a system reliability model with failure correlation of the hoister container; establishing a sensitivity model concerning each random parameter for system reliability of the hoisting container; and establishing, in conjunction with an optimization design model, a reliability robust optimization design model for the hoisting container using a joint failure probability and parameter sensitivity as constraints.
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20.发明申请公开(公告)号：US20190094127A1
公开(公告)日：2019-03-28
申请号：US16079521
申请日：2017-03-02
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Yuxing PENG , Zhencai ZHU , Wenxue XU , Zhiyuan SHI , Xiansheng GONG , Xiangdong CHANG , Dagang WANG , Guohua CAO , Songyong LIU
Abstract: 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.
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