Torsion detection special tool for insert in high-voltage insulated part

The invention provides a torsion detection special tool for an insert in a high-voltage insulated part. The detection tool comprises a detected insulated part positioning and clamping device, a moment arm rod and a torque source, wherein one end of the moment arm rod is provided with a locking crank arm structure connected with the insert and the other end is provided with a torque source loading end; the torque source comprises a hanging rod connected with the torque source loading end of the moment arm rod, a hanging hammer connected with the hanging rod, and a clump weight controlling the size of the torque source; the torque source provides torque for torque detection; the distance between the torque source loading end and the center of the locking crank arm structure is the torque; the moment of the torque source and the moment arm rod to the center of the locking crank arm structure is the torque which needs to be detected; and through controlling the size of the torque source and the distance between t