公开(公告)号：US10824781B2

公开(公告)日：2020-11-03

申请号：US16333218

申请日：2017-12-07

申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

发明人： Hao Lu ,  Zhencai Zhu ,  Gongbo Zhou ,  Yuxing Peng ,  Guohua Cao ,  Wei Li ,  Gang Shen ,  Dagang Wang ,  Fan Jiang

IPC分类号： G06F30/23 ,  E21F13/00 ,  G06F30/17 ,  G06F111/04 ,  G06F111/08 ,  G06F111/10

摘要： 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.

公开(公告)号：US10819128B2

公开(公告)日：2020-10-27

申请号：US16645493

申请日：2018-11-26

申请人： China University of Mining and Technology ,  JIANGSU TIANMING MACHINERY GROUP

发明人： Gongbo Zhou ,  Zhencai Zhu ,  Yaobin Lv ,  Benliang Hao ,  Wei Li ,  Pengpeng Chen ,  Guohua Cao ,  Junhua Yi ,  Yuxing Peng ,  Gang Shen

IPC分类号： H01M10/46 ,  H02J7/00 ,  H02J7/14 ,  H02K7/18

摘要： A device for enabling autonomous powering of a monitoring node of a scraper conveyor chain includes a bottom baffle, a friction wheel drive device, a limiting device, a generator, an energy storage battery, a cable entry device, and dampers. The bottom baffle is connected to a bottom portion of a scraper of a scraper conveyor. The friction wheel drive device comprises a ball, a friction wheel, a drive shaft connected to the generator, and a shaft coupler. The friction wheel is disposed on the drive shaft, and an outer edge of the friction wheel is in contact with a surface of the ball. The limiting device is a ball housing that is connected to the bottom baffle, and is used for limiting the ball within the ball housing. The energy storage battery is connected to the generator, and is used to store electrical energy generated from the generator. The dampers are disposed on the drive shaft.

公开(公告)号：US20180155132A1

公开(公告)日：2018-06-07

申请号：US15558768

申请日：2015-12-29

申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

发明人： Wei Li ,  Xing Zhang ,  Zhencai Zhu ,  Mingquan Qiu ,  Yong Ren ,  Gongbo Zhou ,  Yuxing Peng ,  Guohua Cao

IPC分类号： B65G43/02 ,  G01B11/14 ,  G01S17/08 ,  E21F13/06

CPC分类号： B65G43/02 ,  B65G19/18 ,  B65G2201/04 ,  B65G2203/0275 ,  B65G2203/044 ,  E21F13/066 ,  G01B11/026 ,  G01B11/14 ,  G01B2210/58 ,  G01S17/08 ,  G01S17/88

摘要： A fracture detection system and method for a dumbbell pin of a scraper conveyor. The system comprises a scraper conveyor, a wireless ranging apparatus (2), a wireless communication device, a support controller and a monitoring center. The wireless ranging apparatus (2) is mounted on a ramp plate ledge of a scraper conveyor chute (1), and has a laser range finder and a reflection target plate (24) for detecting a relative displacement between any two adjacent chutes. The wireless communication device realizes communication between the wireless ranging apparatus (2) and the support controller, and transmits the displacement of the laser range finder to the support controller in a wireless transmission manner. The support controller controls an action of the scraper conveyor chute (1). A monitoring center is electrically connected to the support controller, and can perform storage processing on relative displacement data of any adjacent chutes. In the method, by taking a relative displacement value between adjacent chutes as a reference, whether a fracture fault occurs in a dumbbell pin is judged, the position of the fractured dumbbell pin can be accurately determined, and a support controller controls a chute action, thereby having a high promotion and usage value.

公开(公告)号：US09909941B2

公开(公告)日：2018-03-06

申请号：US14909856

申请日：2014-05-29

申请人： CHINA UNIVERSITY OF MINING AND TECHNOLOGY

发明人： Fan Jiang ,  Zhencai Zhu ,  Wei Li ,  Guohua Cao ,  Gongbo Zhou ,  Yuxing Peng ,  Gang Shen ,  Hao Lu

IPC分类号： G01L3/08 ,  G01L3/12

CPC分类号： G01L3/08 ,  G01L3/12

摘要： A hoist main shaft torque monitoring device based on angle measurement, constituted primarily by a first base, a second base, a light generating unit, a shutter, and a light sensing element; the light source, a first lens, and a first optical aperture arranged in the light generating unit, as well as a second optical aperture, second lens, and light sensing element on the shutter, forming a light source generation, propagation, and reception pathway; when the elevator main shaft is subjected to a certain torque, a corresponding displacement is produced between the first optical aperture and the second optical aperture, thus measuring the change in amount of light ultimately reaching the second optical aperture so as to measure the twist angle of the rotary shaft and finally calculate the magnitude of the shaft torque. Without damaging the original equipment and foundation, the device measures the torque of the shaft at different rotational speeds. The device can measure stationary torque and torque at different rotational speeds of the shaft, without the electromagnetic field interfering with wireless transmission; the device is easy to use, maintenance costs are low, and it is of interest for widespread popularization.