Oversized heat treatment suspended rotating tool equipment

The utility model relates to the technical field of heat treatment processing, and discloses a heat treatment equipment suspended rotating tool which comprises a suspended rotating tool platform, a large-power rotating device and a variable-diameter rotating workbench, the bottom of the suspended rotating tool platform is fixed on a base, the top of the suspended rotating tool platform is provided with the large-power suspended rotating device, and the variable-diameter rotating workbench is arranged on the large-power suspended rotating device. A variable-diameter rotary workbench for driving a processed workpiece to rotate is arranged at the top end of the high-power suspended rotating device; the variable-diameter rotary workbench comprises a rotary working disc and a movable telescopic sliding block which is located on the radial line of the rotary working disc and moves to change the diameter. The quenching device can be used for carrying out surface quenching processing on a large-diameter heavy-load wo