Drilling rod power header device, circulation device and rig
A technology of circulation device and power head, which is applied to rotary drilling rigs, drilling tools, earthwork drilling and mining, etc., and can solve problems such as difficulty in drilling wells
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Embodiment 1
[0062] The present invention provides a drill rod power head device, such as figure 1 , figure 2 and Figure 5 As shown, the drill pipe power head device includes a power mechanism 14 and a circulation device; the circulation device includes: a central pipe 5, an inner pipe 8 and an air intake pipe 18; the central pipe 5 is installed on the power mechanism 14, and the power mechanism 14 can drive the central pipe 5 Rotation; the inner tube 8 is arranged in the central tube 5, a first annular space 81 is arranged between the inner tube 8 and the central tube 5, and the upper end of the inner tube 8 is sealed with the inner wall of the central tube 5; The air 81 is connected; when the lower end of the central pipe 5 is connected to the positive circulation drill pipe, the central hole of the inner pipe 8 is communicated with the central hole of the positive circulation drill pipe; at the lower end of the central pipe 5 and the lower end of the inner pipe 8, the connection is r...
Embodiment 2
[0092] The present invention provides a circulation device, which is applied to the above-mentioned drill pipe power head device, such as figure 1 , figure 2 and Figure 5 As shown, the circulation device includes: a central pipe 5, an inner pipe 8 and an intake pipe 18; the inner pipe 8 is arranged in the central pipe 5, and a first annular space 81 is arranged between the central pipe 5 and the inner pipe 8; the intake pipe 18 Connected with the first annulus 81; when the lower end of the central pipe 5 and the lower end of the inner pipe 8 are connected to the reverse circulation drill pipe, the first annulus 81 is communicated with the drill pipe annulus of the reverse circulation drill pipe, and the inner pipe The central hole of 8 communicates with the central hole of the inner pipe of the reverse circulation drill pipe; when the lower end of the central pipe 5 is connected to the positive circulation drill pipe, the central hole of the inner pipe 8 is communicated wit...
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