Torsion impact speed acceleration device

A torsion impact speed acceleration device, comprising a main body, an anvil, an impact hammer, a conversion member, a mandrel and a throttle nozzle;

• an inner limiting boss is provided at an upper inner side of the main body, a drainage member is mounted between the inner limiting boss and the anvil, a lower conical annular platform which is a frustum having a wide upper portion and a narrow lower portion is provided at an upper inner side of the throttle nozzle, a lower portion of the anvil is fixed with a lower portion of the main body through locating devices, an upper outer side of the mandrel is fixed with a lower inner side of the drainage member, a lower outer side of the mandrel is fixed with a lower inner side of the anvil, an outer side of the throttle nozzle is fixed with a lower inner side of the mandrel, the conversion member and the impact hammer are sheathed sequentially between an outer side of the mandrel and an inner side of the anvil, an annular liquid flow cavity is provided between a middle outer side of the mandrel and an upper inner side of the conversion member, at least one first radial liquid flow via-hole in communication with the annular liquid flow cavity is distributed circumferentially on the mandrel above the throttle nozzle, an inner side of the impact hammer is provided with a first groove and a second groove, an outer side of the conversion member is provided with a first slider rotatable circumferentially in the first groove and a second slider rotatable circumferentially in the second groove, a second radial liquid flow via-hole and a third radial liquid flow via-hole both in communication with the annular liquid flow cavity are distributed circumferentially on the second slider, the second radial liquid flow via-hole is located on the second slider between the first slider and the third radial liquid flow via-hole, the inner side of the anvil is provided with a third groove, an outer side of the impact hammer corresponding to and outward of the second groove is provided with a third slider rotatable circumferentially in the third groove, a fourth radial liquid flow via-hole capable of being in communication with the second radial liquid flow via-hole and a fifth radial liquid flow via-hole capable of being in communication with the third radial liquid flow via-hole are distributed circumferentially on the impact hammer and adjoin two sides of the third slider, respectively, an annular liquid cavity is provided between the outer side of the mandrel and the inner side of the anvil below the conversion member and the impact hammer, and an inclined flow channel in communication with the annular liquid cavity is provided on the mandrel below the throttle nozzle.