Anti-fatigue testing device of special coupling for 8-shaped encoder

The utility model discloses an anti-fatigue testing device of a special coupler for an 8-shaped encoder. The utility model relates to the technical field of anti-fatigue testing. Including a base, a power device, a clamping device and a balance weight device are sequentially arranged on the upper surface of the base. The power device comprises a speed regulating motor mounted on the upper surfaceof the base; a touch screen is mounted on one side of the speed regulating motor; the clamping device comprises a set of oppositely-arranged hydraulic cylinders, an ejector rod is fixedly connected tothe ends of the hydraulic cylinders, a clamping plate is welded to the end of the ejector rod, the balance weight device comprises a second conversion sleeve, and a balance weight block is fixedly connected to the second conversion sleeve. According to the anti-fatigue testing device of the special coupler for the 8-shaped encoder, the power device, the clamping device and the counterweight device are matched with one ano