Torsional impact drilling acceleration tool
A technology of percussion drilling and tools, which is applied in drilling equipment, driving devices for drilling in boreholes, earthwork drilling and production, etc. It can solve problems such as stuck pipe, low safety, and affecting the quality of the wellbore, so as to avoid failure and improve use The effect of longevity
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[0028] Such as figure 1 As shown, the speed-up tool for torsional percussion drilling of the present invention includes a casing 1, a seat body 14, a diversion unit, an impact unit and an anti-drop unit; it is characterized in that the upper end of the casing 1 is provided with a male connecting drill collar Buckle 15, the lower end is provided with a housing spline 16 that cooperates with the seat body spline 20. The housing 1 contains a flow guide unit, an impact unit and an anti-drop unit; the upper end of the seat body 14 is provided with an impact hammer 8 The inner cavity of the lower end is provided with a female buckle 19 for connecting the drill bit and a seat spline 20 for functioning with the housing spline 16; the flow guide unit includes a sand removal sleeve 2, a sealing cover 3 and a screen 6; The impact unit includes a positioning sleeve 7, an impact hammer 8, an upper needle bearing 4, an upper deep groove ball bearing 5, a lower deep groove ball bearing 9 and a...
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