In this article,in order to improve both the disassembly speed of the drill rod and the torque transfer mode,the working principle of the hydraulic pipe's quick joint is used to improve and optimize the ZDY1900 rig's 63.5 mm drill rod;ef-forts are made to design a new connection of the drill rod.A 3D model is set up and imported into the ansys for the statics analy-sis;and the joint structure is optimized according to the results.The optimized quick joint overcomes the threaded joint's disad-vantage that it can only rotate in one direction;instead,the quick joint can achieve the forward-and reverse-rotation,which is fast and convenient for load and unload on one hand and more conducive to both the mechanical load and unload and the development of mining-oriented rig automation on the other hand.
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