公开(公告)号：US10065804B1

公开(公告)日：2018-09-04

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

IPC: B65G43/06 ,  B65G19/08 ,  G01L1/22 ,  B65G19/22

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.

公开(公告)号：US11097925B2

公开(公告)日：2021-08-24

申请号：US16613806

申请日：2018-09-21

Applicant: China University of Mining and Technology ,  XUZHOU ZHIRUN MINING EQUIPMENT SCIENCE AND TECHNOLOGY CO., LTD ,  INNER MONGOLIA UNIVERSITY OF TECHNOLOGY

Inventor： Guohua Cao ,  Zhencai Zhu ,  Ying Wang ,  Ke Wang ,  Chunli Hua ,  Gongbo Zhou ,  Weihong Peng ,  Yuxing Peng ,  Wei Li ,  Yu Tang ,  Shanzeng Liu ,  Xin Zhang

IPC: B66B5/28 ,  B66B15/06 ,  B66B5/02 ,  B66B7/10

Abstract: A device for cage jamming buffer of large-tonnage hoisting system of ultra-deep shaft is provided. End cage jamming buffer mechanisms are added at both ends of an automatic wire rope tension balancing mechanism, wherein the end cage jamming buffer mechanisms include an end buffer module and an end fixing module, and the end buffer module and the end fixing module are respectively mounted on shafts of the automatic wire rope tension balancing mechanisms at two ends. The end buffer module mainly consists of a buffer bearing pedestal, a limit block, a buffer block, and a stop block sequentially mounted on the shaft of the automatic wire rope tension balancing mechanism at one end. The end fixing module mainly consists of a fixing bearing pedestal and a fixing block mounted on the shaft, wherein the fixing bearing pedestal is connected to a transmission gear by an adjusting bolt.

公开(公告)号：US10913636B2

公开(公告)日：2021-02-09

申请号：US16077981

申请日：2017-12-01

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY ,  XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.

Inventor： Guohua Cao ,  Lifei Jiang ,  Zhencai Zhu ,  Weihong Peng ,  Chunli Hua ,  Gongbo Zhou ,  Yuxing Peng ,  Wei Li ,  Shizhe Feng ,  Shanzeng Liu

IPC: B66B7/10

Abstract: The present invention discloses a device and method for adjusting tension of a steel wire rope of an ultra-deep vertical shaft at a hoisting-container-end. The device includes two stages of steel wire rope tension adjusting devices provided on a hoisting container, where a primary steel wire rope tension adjusting device includes left and right steel wire rope tension adjusting devices that are symmetrically arranged, and a secondary steel wire rope tension adjusting device is provided below the primary steel wire rope tension adjusting device. By use of two stages of steel wire rope tension adjusting devices, tension on four steel wire ropes can be adjusted to equalize the tension, thus meeting the requirement for tension equalization in a hoisting process. The four steel wire ropes are equally divided into two groups. Tension of two steel wire ropes is adjusted by rotating a primary drum around which the two steel wire ropes are wound, and then tension of the four steel wire ropes is adjusted by rotating a secondary drum around which the multiple steel wire ropes are wound, thus achieving a final purpose. The device of the present invention has a simple structure, and is conveniently mounted and easily detached. The tension is automatically adjusted by rotating the drums. This solution is novel and has wide application.