煤矿井下安全钻机大量使用圆柱形钻杆，钻杆设：计的优劣不伯对钻机的制造成本有极大影响（如ZD－15O型大孔径钻机的钻杆．其制造成本占整机的1／3），而且与煤矿的生产安全和社会、经济效益有着密切的关系。因此，我们在研制矿用钻机时非常重视钻杆的设计研究。本文就钻杆的理 Coal mine safety drilling rigs use a large number of cylindrical drill pipe, drill pipe design: the advantages and disadvantages of the total weight of the drilling rig manufacturing costs have a great impact (such as ZD-15O large-diameter drilling rig drill pipe. 1/3), but also with the coal mine production safety and social and economic benefits are closely related. Therefore, we attach great importance to the design and research of drill pipe when developing mine rigs. This article on the management of drill pipe