Integrated drilling rod drilling tool slope movable sleeve system and matching method thereof

Abstract

The invention discloses an integrated drilling rod drilling tool slope movable sleeve system and a matching method thereof. The slope movable sleeve system adopted in the method comprises a slope semi-circular roller way movable sleeve body, and a singular number of slope semi-circular roller ways accommodating rolling bodies at equal intervals are arranged on the axial outer wall of the slope semi-circular roller way movable sleeve body; slope annular runways of the rolling bodies are constituted by the slope semi-circular roller ways and semi-circular roller ways composed of two static sleeves radially corresponding to the slope semi-circular roller ways; a valley bottom radial diameter line of each slope semi-circular roller way on the slope semi-circular roller way movable sleeve bodyand a combination seam line of the semi-circular roller way composed of the two static sleeves on one side are parallel in the same direction; and a slope is arranged on one side of each slope semi-circular roller way of the slope semi-circular roller way movable sleeve body, and a circular arc roller way is arranged on the other side of each slope semi-circular roller way of the slope semi-circular roller way movable sleeve body, wherein the included angle between the slope and the axis line is 15 degrees to 60 degrees. The integrated drilling rod drilling tool slope movable sleeve system works under the axial pressure of a drilling rod with the large load and has the effects of fragmentation resistance, abrasion resistance and impact resistance, the structural form of the integrated drilling rod drilling tool slope movable sleeve system is kept intact, and the pressure bearing life is long. The integrated drilling rod drilling tool slope movable sleeve system is overall replaced andthus is convenient to mount and demount.

Description

technical field [0001] The invention relates to the technical field of drill-pipe drilling tools, in particular to an integrated drill-pipe drilling tool slope dynamic bushing system and a matching method thereof. Background technique [0002] At present, the dynamic sleeves of drill pipes and drilling tools used in the world are all dynamic sleeves composed of multiple single dynamic sleeves. For example, the dynamic sleeves of drill pipes and drilling tools used in the United States and Russia generally use combined dynamic sleeves. Each single moving sleeve corresponds to each single static sleeve of the static sleeve set, a raceway for the rolling body movement, when the drill pipe is working under heavy load, a single moving sleeve set on the drill pipe The moving sleeve is composed of the static sleeve 1, the static sleeve end 2, the moving sleeve 3, the moving sleeve end 4, the rolling body 5 and the drill pipe 6, such as figure 1 shown. When the drill pipe is worki...

AI Technical Summary

Problems solved by technology

When the drill pipe is working under a heavy load, a single movable sleeve 3 of the upper movable sleeve group of the drill pipe and drilling tool is easily damaged under the axial pressure of 10 tons to 30 tons under a large load. In the case of continued damage, the work must be stopped, and the moving set should be replaced as a whole, which will delay the task time of the project. For this reason, a device that can overcome the above defects is needed

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