现在全国大多数电动牙轮钻机、挖掘机的尾部电缆随主机行走移动还用人工，电缆长期在复杂的采场地面拖曳受到很快磨损，甚至发生导电、漏电，极易发生人身、设备事故。因此，广大用户尤其是操作人员都希望做到尾部电缆随主机移动自动同步卷放。本人多年结合实践研究开发的、业 Now most of the electric roller cone drilling rig, excavator tail cable with the host to move with the artificial labor, the long-term cable drag in the complex field of the ground by the rapid wear and tear, or even conductive, leakage, prone to personal and equipment accidents. Therefore, the majority of users, especially operators are hoping to make the tail cable automatically move with the host volume roll. I have many years of practical research and development, industry