Underground torsion impact stimulation device based on drill string vibration

The invention relates to an underground torsion impact stimulation device based on drill string vibration. The device comprises an upper stress transmission assembly, a reset torsion transmission assembly and a torsion activation transmission assembly, wherein the upper stress transmission assembly comprises a vibration transmission shaft, a spacing ring, a driving torsion impact body and a driving torsion impact body compression block; the reset torsion transmission assembly comprises a spline outer barrel, a spring protection barrel, a spring, a spring lower plugging joint, a torsion transmission protection barrel and a spacing joint; the torsion activation transmission assembly comprises a driven torsion impact body and a conversion joint; the vibration transmission shaft and the driving torsion impact body compression block are in threaded connection; the driving torsion impact body is installed on the mounting surface of the driving torsion impact body of the vibration transmission shaft in a clearance fit way; the driven torsion impact body and the conversion joint are in threaded connection; the spring is arranged in the spring protection barrel. According to the device, conversion to circumferential high-frequency torsion impact vibration from axial vibration can be realized, and vibration frequency can be changed according to the number of inner torsion teeth so as to generate high-frequency torsion impact vibration which meets site requirements.