Spiral transmission push rod for realizing linear motion of centrifugal pipe casting machine

The utility model relates to a spiral transmission push rod for realizing linear motion of a centrifugal pipe casting machine, and belongs to the field of mechanical equipment. The push rod comprisesa walking sleeve, a push rod body and a push rod guide sleeve, and is structurally characterized by further comprising a nut, a screw rod and a butt joint device, the push rod body is located in the push rod guide sleeve, the screw rod is located in the walking sleeve, the push rod body is connected with the screw rod through the butt joint device, and the nut is arranged on the screw rod in a sleeved mode. According to the spiral transmission push rod for achieving linear motion of the centrifugal pipe casting machine, external power is changed into linear motion of the screw rod through rotation of the nut, the linear motion of the screw rod is transmitted to the centrifugal pipe casting machine, the centrifugal pipe casting machine is driven to do constant-speed linear motion, and the working function of the ce