Hemisphere valve sphere eccentricity measuring device

The invention discloses a hemisphere valve sphere eccentricity measuring device and specifically relates to the technical field of eccentricity measurement. The device comprises a fixed seat, the bottom end of the fixing base is connected with a supporting frame. Wheels are installed at the positions, close to the four corners of the fixing base, in the supporting frame. Telescopic cylinders are connected to the top ends of the wheels and are positioned in the fixed seats; an air pump is mounted in the fixed seat; a three-way pipe is arranged at the top end of the air pump, a control switch isinstalled on the outer wall of the fixing base, a fixing shell is installed on the side, close to the lower portion of the control switch, of the outer wall of the fixing base, a first motor is installed on the outer side of the fixing shell, and an output shaft of the first motor is located in the fixing shell and connected with a first bevel gear. The stable placement of the device is facilitated through the extension