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公开(公告)号：US11772687B1
公开(公告)日：2023-10-03
申请号：US18029326
申请日：2022-09-30
Inventor： Zhencai Zhu , Fan Jiang , Xingtao Huang , Gongbo Zhou , Niansheng Liu , Libing Wang , Chuansheng Zhang , Junfeng Guo , Gang Shen , Shuman Cheng , Jinlei Ma , Chaofan Zhang , Wenwen Yi
CPC classification number: B61D11/00 , E21F17/18 , G05D1/02 , G05D2201/021
Abstract: The present disclosure discloses a low-energy-consumption grading and positioning method and system for a coal mine auxiliary transportation vehicle, which belongs to the technical field of mine tunnel transportation. The method comprises the following steps: S10, determining an optimal transportation route of a vehicle, and dividing the optimal transportation route into a plurality of locked intervals; S20, determining an initial velocity v0 of the vehicle passing through each locked interval; S30, constructing a discretization mileage estimation model to update a real-time position of the vehicle, and obtaining dynamic track information of the vehicle in each locked interval; S40, constructing a [v0, t] prediction model, and obtaining a theoretical time t0 of the vehicle passing through each locked interval through the prediction model; S50, comparing a actual time t and the theoretical time t0 of the vehicle passing through each locked interval, and selecting whether to start overtime early warning or overtime alarm; and S60, repeating S30 to S50 after the vehicle enters the next locked interval. The low-energy-consumption grading and positioning method and system for the coal mine auxiliary transportation vehicle provided in the present disclosure realizes on-demand positioning of the underground vehicle and reduces the consumption and cost of positioning.
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公开(公告)号：US11305946B2
公开(公告)日：2022-04-19
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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公开(公告)号：US11215046B2
公开(公告)日：2022-01-04
申请号：US17043691
申请日：2019-11-11
Applicant: China University of Mining and Technology
Inventor： Gongbo Zhou , Chaoquan Tang , Zhencai Zhu , Hongwei Tang , Zhenzhi He , Gang Zhang , Wei Li , Fan Jiang
Abstract: Disclosed are a wellbore inspection system and method for an ultra-deep vertical shaft. The wellbore inspection system includes a wire rope moving system, inspection robots, a visual image acquisition system, a wireless communication module, a central control system, and an image post-processing system of an upper computer. The wire rope moving system includes a surface wire rope guide rail, an underground wire rope guide rail, a surface wire rope moving device, an underground wire rope moving device, and a wire rope. The visual image acquisition system includes explosion-proof cameras. After image information acquired by the explosion-proof cameras is processed by a lower computer, the processed image is transmitted by a wireless image transmission module to the image post-processing system of the upper computer. The central control system is connected to the inspection robots and the wire rope moving system, and the inspection robots are connected to the central control system.
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54.发明授权公开(公告)号：US11125072B2
公开(公告)日：2021-09-21
申请号：US17040552
申请日：2019-11-11
Applicant: China University of Mining and Technology
Inventor： Gongbo Zhou , Chaoquan Tang , Zhencai Zhu , Gang Zhang , Zhenzhi He , Hongwei Tang , Wei Li , Fan Jiang
Abstract: Disclosed are a synchronous movement apparatus of tracks in a wellbore inspection system and a control method thereof. The synchronous movement apparatus includes an upper moving track, a lower moving track, an upper wire rope moving device, a lower wire rope moving device, and a control device; the upper moving track and the lower moving track are correspondingly embedded into an inner wall of a wellbore, and the upper moving track is located above the lower moving track; the upper wire rope moving device is fitted in the upper moving track, and the lower wire rope moving device is fitted in the lower moving track; the upper moving track and the lower moving track have the same structure and each include a track body. A rolling face is arranged on the track body, and grooves are evenly distributed on the rolling face along the extending direction of the track body.
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公开(公告)号：US11099146B1
公开(公告)日：2021-08-24
申请号：US17264412
申请日：2020-03-13
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Shaoyi Xu , Zhencai Zhu , Wei Li , Yanjing Sun , Fangfang Xing , Hongyu Xue , Qiang Peng , Feng Dong , Guang Chen
Abstract: When the heading machine tunnels, a current generated by a current excitation source enters a coal seam through a movable cutting pick to form a stray current. The stray current collected by a backflow net returns to a negative electrode of a power supply through a transition resistor. When information such as the water content of the coal seam changes, the stray current and a potential difference across the transition resistor also accordingly change, and the coal seam water content information is converted into an electric signal. When the potential difference across the transition resistor is applied to two ends of a piezoelectric ceramic, the piezoelectric ceramic extends or compresses, and the electric signal is converted into a strain signal. A sensing optical fiber converts the strain signal into an optical signal detectable by a photoelectric detector. The optical signal is analyzed to obtain the coal seam water content information.
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Patent Agency Ranking
公开(公告)号：US10988347B2
公开(公告)日：2021-04-27
申请号：US16955787
申请日：2019-09-04
Applicant: China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
Inventor： Yuxing Peng , Zhencai Zhu , Gongbo Zhou , Changhua Hu , Qingyong Du , Hao Lu , Guohua Cao , Songyong Liu , Gang Shen
Abstract: A large-tonnage coal dropping buffer skip for a mine is disclosed. A loading skip box (14) is installed at the top of a large-tonnage skip (12), a coal dropping buffer device (13) is arranged on the inner sidewall of the large-tonnage skip (12), and the coal dropping buffer device (13) includes: a frame (1) fixedly connected with the inner sidewall of the large-tonnage skip (12); a lining plate guide frame (6) connected with the frame (1) through shock absorbers (2), guide sliding grooves being formed in the lining plate guide frame (6); a lining plate support (4) slidably nested in the guide sliding grooves in the lining plate guide frame (6), hoisting lugs (9) for hoisting being arranged at the top end of the lining plate support (4); and a lining plate (5) detachably connected with the lining plate support (4) through fasteners (7).
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公开(公告)号：US20180195388A1
公开(公告)日：2018-07-12
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
CPC classification number: E21D9/10 , E21C25/66 , E21C27/22 , E21C27/28 , E21D9/1006 , E21D9/1026 , E21D9/106
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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公开(公告)号：US20180170716A1
公开(公告)日：2018-06-21
申请号：US15542601
申请日：2015-12-29
Inventor： Zhencai Zhu , Guohua Cao , Jiancong Qin , Panda Wang , Weihong Peng , Lingyun Ma , Yiping Ma , Ming Gao , Jianrong Yang , Lei Wei
CPC classification number: B66B9/04 , B66B7/027 , B66B11/006 , B66B11/028 , E04F11/0201 , F15B11/20 , F15B15/1428 , F15B2211/7107
Abstract: A hydraulic elevating platform having no guide rails and an elevating method. A hydraulic power pack drives three parallel hydraulic cylinders to work synchronously, thereby implementing the rising and falling of an elevating platform; when the elevating platform reaches a predetermined floor, an upper electric pushrod pushes a pedal assembly out, and then the pedal assembly drives a pedal to rise by means of a pedal elevating system until the pedal is flush with the surface of a loading table of the elevating platform; outward-swinging doors between the elevating platform and a floor open to form pedal guardrails; then sliding doors open and a man can step onto a stair via the pedal assembly. An eccentric loading adjusting means eliminates eccentric loading to achieve balance about the center of gravity, thereby eliminating the eccentric loading of the platform. The elevating platform is simple in structure, safe, reliable, and easy to maintain. The elevating platform, placed within a spiral stair, is convenient for movement of crowds and cargo delivery at certain scenarios and is widely applicable. The elevating method is simple to implement and effectively solves the eccentric loading problem caused by reasons such as outstretching of a pedal of a hydraulic elevating platform and uneven distribution of people on the elevating platform, so that the hydraulic elevating platform is more stable and reliable during operation.
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公开(公告)号：US09975737B2
公开(公告)日：2018-05-22
申请号：US15520478
申请日：2015-12-29
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Zhencai Zhu , Guohua Cao , Yandong Wang , Lu Yan , Weihong Peng , Yuxing Peng , Gongbo Zhou , Wei Li , Gang Shen
Abstract: The present invention relates to a horizontally movable vertical shaft rope guide and a regulating method thereof, which are suitable for guiding of hoisting containers in vertical shafts. The vertical shaft rope guide comprises a hoisting rope, and two hoisting containers suspended from the tail ends of the hoisting rope, wherein, cage guide ropes are led through guide cage lugs arranged on the two sides respectively, a tensioner arranged on the ground at the shaft top is connected to the upper end of each cage guide rope, and a connector arranged under a steel slot at the shaft bottom is connected to the lower end of each cage guide rope; a hydraulic cylinder is connected at the other side of each tensioner and the corresponding connector, and the hydraulic cylinder is connected to the tensioner or connector. During hoisting in the vertical shaft, the hydraulic cylinders are controlled to act in advance, to push the tensioners or connectors to move towards the center between the two hoisting containers, so that the cage guide ropes led through the guide cage lugs on the two sides of the hoisting containers get close to each other at the same time and wrap the hoisting container; thus, the horizontal displacement of the hoisting containers is restrained, and the impact of air flow on the two hoisting containers is minimized when the two hoisting containers meet.
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60.发明授权公开(公告)号：US09963296B2
公开(公告)日：2018-05-08
申请号：US15537523
申请日：2015-08-11
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Xiao Chen , Qianping Wu , Wei Li , Zhencai Zhu , Mingquan Qiu , Gongbo Zhou , Guohua Cao , Yuxing Peng
Abstract: A coal dropping impact energy buffer monitoring device and method for a coal mine belt conveying system. The device comprises a buffer belt roller group, a buffer bracket, buffer springs, impact energy collecting dampers, a signal converting and sending device, and an installation bottom board, the buffer belt roller group being fixed to the buffer bracket, the upper ends and the lower ends of the buffer springs and the impact energy collecting dampers being respectively connected to the buffer bracket and the installation bottom board, and the impact energy collecting dampers being connected to the signal converting and sending device fixed to the installation bottom board through guide lines.
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