What are the different forms of drill rods design for tunneling and rock drilling vehicles?
Time
2022-12-22 22:03
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The drilling drill rod is divided into ordinary drill rods and quick-change drill rods according to the different design forms of connection with the drill tail end.MFThe ordinary drilling rock drilling rig drill rod is connected to the drill tail through a connecting sleeve, which is widely used, while the quick-change drill rod is designed with the connecting sleeve integrated with the drill rod for connection with the drill tail.MFAccording to the different design forms of the connection end with the threaded drill bit, it is divided into structures with a retreating groove and a slow retraction structure. Depending on the different thread forms, the end of the drilling drill rod that connects to the drill tail is mostly threaded.T38Some also useR38threaded connections, and the end connecting to the drill bit mostly usesR32threaded connections, and some also useTR35,SR32thread forms.

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