Turbine stator and rotor combination piece for linear projection blade and turbine motor

Abstract

The invention provides a turbine stator and rotor combination piece for linear projection blade and a turbine motor. The turbine stator and rotor combination piece comprises a stator and a rotor which are coaxially sleeved, wherein the stator comprises a stator body, a stator blade and a stator shroud; the rotor comprises a rotor body, a rotor blade and a rotor shroud; the inner wall of the stator shroud and the outer wall of the rotor body are coaxially sleeved; points on an outer outline line of the stator blade and an intersection line of the corresponding equivalent meridian plane form a first intersecting line; the first intersecting line is vertically intersected with a first projection straight line passing through the inside of the stator shroud; points on the outer outline line of the rotor blade and an intersection line of the corresponding equivalent meridian plane form a second intersecting line; the second intersecting line is vertically intersected with a second projection straight line passing through the inside of the rotor shroud. The turbine stator and rotor combination piece provided by the invention has the advantages of high hydraulic efficiency. The turbine motor provided by the invention has the advantages of simple structure and large torque, and is applicable to drilling boreholes with various sizes.

Description

technical field [0001] The invention relates to a downhole power drilling tool for rotary drilling in the fields of petroleum, natural gas, coal bed methane, shale gas exploitation, etc., or for wellbore or hole drilling in the fields of geology, railway, electric power, communication, etc., especially a high-torque turbo drill The utility model relates to a stator-rotor assembly and a turbine motor, belonging to the technical field of mechanical manufacturing. Background technique [0002] Turbine drilling technology has good economic and social benefits, and is one of the cutting-edge technologies in the petroleum industry. Turbo drilling reduces consumption and reduces costs. Turbodrilling tool is the earliest downhole power drilling tool in industrial application. It consists of three parts: turbine motor, cardan shaft and transmission shaft. Its function is to convert the fluid pressure energy of the working fluid into the rotational mechanical energy of the output sha...

AI Technical Summary

Problems solved by technology

[0003] Historically, turbodrilling tools have been used as one of the commonly used downhole dynamic drilling tools in oil fields since they were invented and developed. However, their development is slow and they have not been well used. , small torque, single model, short working life, not compatible with the development level of existing drilling equipment and tools

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