煤矿用中心通缆式钻杆能由孔口向孔底输送电力信号的同时,又能建立孔口与孔底设备之间的双向和高速的信息通道。介绍了通缆式钻杆外管的设计,内部结构的设计以及对信号传输过程有影响关键点的研究。这种关键技术只有给予充分重视,才能确保最终信号传输的稳定性与可靠性,为煤矿安全高效开采提供保障。 Coal mine center through cable drill pipe hole from the hole to send power signals at the same time, but also to establish the aperture and hole bottom of the device between the two-way and high-speed information channel. This paper introduces the design of the outer pipe of coiled cable drill pipe, the design of its internal structure and the research on the key points influencing the signal transmission process. Only paid enough attention to this key technology can we ensure the stability and reliability of the final signal transmission and provide safeguards for the safe and efficient mining of coal mines.