Invention Grant
- Patent Title: Environmental monitoring apparatus and method for mine tunneling robot
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Application No.: US17996664Application Date: 2022-01-17
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Publication No.: US11761334B2Publication Date: 2023-09-19
- Inventor: Shaoyi Xu , Zhencai Zhu , Wei Li , Wenting Lu , Gang Shen , Songyong Liu , Fangfang Xing , Hongxiang Jiang , Lei Si
- Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Applicant Address: CN Xuzhou
- Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Current Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
- Current Assignee Address: CN Xuzhou
- Agency: HAUPTMAN HAM, LLP
- Priority: CN 2110125404.3 2021.01.29
- International Application: PCT/CN2022/072309 2022.01.17
- International Announcement: WO2022/161197A 2022.08.04
- Date entered country: 2022-10-20
- Main IPC: E21D9/00
- IPC: E21D9/00 ; E21D9/10 ; E21C35/24 ; E21C39/00

Abstract:
An apparatus includes a current excitation source, a roadheader telescopic protection cylinder, an electric rotating apparatus, auxiliary cutting teeth, a cutting head entity, a transmission shaft, an optical fiber ring protective housing, an optical fiber ring, an optical fiber current sensor control unit and a recovery electrode. The apparatus transmits an auxiliary current Ie and a monitoring current Id to a coal seam. The auxiliary current Ie and the monitoring current Id are homologous currents that are incompatible, and the auxiliary current Ie squeezes the monitoring current Id, so the monitoring current Id monitors the environment of the coal seam. The monitoring current Id flows to the coal seam as, and a return current If flows through the transmission shaft and a roadheader expansion part. The optical fiber ring measures the return current If, when the roadheader is heading forward and encounters abnormal geological bodies.
Public/Granted literature
- US20230127366A1 ENVIRONMENTAL MONITORING APPARATUS AND METHOD FOR MINE TUNNELING ROBOT Public/Granted day:2023-04-27
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