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.

公开(公告)号：US20180186578A1

公开(公告)日：2018-07-05

申请号：US15525284

申请日：2015-12-29

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY

Inventor： Wei LI ,  Xing ZHANG ,  Zhencai ZHU ,  Mingquan QIU ,  Yong REN ,  Gongbo ZHOU ,  Yuxing PENG ,  Guohua CAO

IPC: B65G43/06 ,  B65G43/02 ,  B65G43/04 ,  B65G23/44

CPC classification number: B65G43/06 ,  B65G23/44 ,  B65G43/02 ,  B65G43/04 ,  B66B25/006

Abstract: Provided is a breakage detection system and method for a scraper conveyor, wherein a speed measurement device of the detection system and a sprocket assembly of the scraper conveyor are coaxially installed. Encoders are installed on speed measurement gears of the speed measurement device. An output end of the speed measurement device is connected to an input end of a programmable logic controller (PLC). An output end of the PLC is electrically connected to an automatic alarm device and a digital display module. A power supply module is used for supplying power to the whole system.