TORQUE WRENCH CAPABLE OF CORRECTING TORQUE AND TORQUE CORRECTION METHOD THEREOF

摘要

A torque wrench includes a mechanical structure and an electronic structure. The mechanical structure includes a tubular body, a flexible rod, an abutment member, an elastic member, a trip mechanism, an adjustment mechanism and a mechanical scale indication mounted in the tubular body for indicating the set torque of the wrench. The electronic structure includes at least one torque sensor and a display unit. When correcting the torque value of the mechanical structure, a force is applied to the wrench and the torque sensor detects the trip torque value of the wrench. The torque value of the mechanical structure is adjusted to match the torque value detected by the torque sensor so as to eliminate the error of the torque value of the mechanical structure.

主权项

1. A torque wrench capable of correcting torque, comprising:
a tubular body; a head section positioned at a front end of the tubular body; a flexible rod pivotally disposed at the front end of the tubular body, the flexible rod being swingable, a rear end of the flexible rod being positioned in the tubular body, a front end of the flexible rod being fixedly connected with the head section; an abutment member and an elastic member disposed in the tubular body, the abutment member being positioned behind the flexible rod and movable within the tubular body; a front end of the elastic member elastically abutting against the abutment member; a trip mechanism disposed between the rear end of the flexible rod and the front end of the abutment member; the flexible rod and the abutment member being in contact with each other via the trip mechanism; an adjustment mechanism disposed at the rear end of the tubular body in contact with the elastic member for adjusting the elastic force applied by the elastic member to the abutment member; a mechanical scale indication positioned on the tubular body for reading the set torque value of the wrench; at least one torque sensor disposed on one side of the flexible rod for detecting the strain of the flexible rod; and at least one display unit disposed on the tubular body for displaying the torque value detected by the torque sensor.