Gravity machine push-pull system for aluminum alloy shell

The invention relates to the technical field of gravity machines, and discloses a gravity machine push-pull system for an aluminum alloy shell. The gravity machine push-pull system comprises a base and a rotating block, the upper surface of the base is fixedly connected with a fixing plate, one side of the fixing plate is fixedly connected with a rubber ball, one side of the rubber ball is fixedly connected with an oil conveying pipe, the upper surface of the base is fixedly connected with a fixing frame, a hydraulic cylinder is fixedly connected to the top of the fixing frame, a hydraulic rod is movably connected to the bottom of the hydraulic cylinder, an oil outlet barrel is fixedly connected to the bottom of the hydraulic cylinder, the hydraulic rod penetrates through the oil outlet barrel, and a plurality of nozzles are formed in the circumferential inner wall of the oil outlet barrel. According to the device, the hydraulic rod can be automatically lubricated through matched use of a wedge-shaped block a