The invention discloses a self-lubricating jack. The self-lubricating jack comprises a hydraulic cylinder body, a piston arranged in the hydraulic cylinder body and a piston rod arranged on the piston, wherein the hydraulic cylinder body comprises a base, a cylinder wall and a cylinder cover, the inner surface of the cylinder wall is provided with a PTFE (Poly Tetra Fluoro Ethylene) lubricating coating layer, the piston is matched and connected with the cylinder wall in a sliding way, the outer surface of the piston rod is provided with a PTFE lubricating coating layer, the piston rod is matched and connected with the cylinder cover in the sliding way, and a groove is formed in the bottom part of the base. Through the way, the self-lubricating jack disclosed by the invention is simple and reasonable in structure, has self-lubricating performance and is slightly affected by the lubricating performance of oil.
Self-lubricating jack
2015-04-29
Patent
Elektronische Ressource
Englisch
IPC: | B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |