Hydraulic type anti-skidding bit feed tool
A drilling tool and anti-skid technology, which is applied to rotary drilling rigs, drilling equipment and methods, construction, etc., can solve problems such as difficulty in feeding a horizontal well drill string, and achieve the effects of reducing friction and simple control methods.
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[0013] Such as figure 1 with figure 2 As shown, a hydraulic non-slip drilling tool of the present invention is composed of a sleeve 1, a half ring 2, a slider 3, a center tube 4, a slip seat 5, a slip 6, a spring 7, an upper cylinder 8, The lower cylinder body 9, the throttle tube 10, the output shaft 11 and the anti-dropping shell 12 are formed; its structural feature is: three "T"-shaped grooves are uniformly arranged in the circumferential direction of the lower end of the slip base 5, and the upper end of the three slips 6 The "T"-shaped hooks are installed in the three "T"-shaped grooves at the lower end of the slip base 5. The raised outer edges on both sides of the lower end are installed in the grooves on both sides of the three slopes of the upper cylinder 8. The slip base 5 The upper end and the lower end of the sleeve 1 are threaded connection; the spring 7 is installed on the inner hole step of the upper cylinder 8, the central tube 4 is installed in the inner hole ...
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