Environmental monitoring apparatus and method for mine tunneling robot

US11761334B2 · kind B2 · utility

Assignee

• China University of Mining and Technology · CN

Inventors

• Shaoyi Xu · Beijing, CN
• Zhencai Zhu · 安丰镇, CN
• Wei Li · 安丰镇, CN
• Wenting Lu · Xuzhou, CN
• Gang Shen · Shanghai, CN
• Songyong Liu · Suzhou, CN
• Fangfang Xing · 安丰镇, CN
• Hongxiang Jiang · 安丰镇, CN
• Lei Si · Beijing, CN

Key dates

• Filing date: Jan 17, 2022
• Grant date: Sep 19, 2023
• Expiry date: Jan 17, 2042

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E21D9/1006
• WIPO field: Civil engineering
• WIPO sector: Other fields

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.