Sealed hydrocylinder

• Main Authors: LIU MIN, HUANG YUN, WANG DONGEN
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2012
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model discloses a sealed hydrocylinder which comprises a cylinder barrel and a cylinder block, wherein the cylinder block and the cylinder barrel are welded into a whole; the cylinder block is provided with an oil inlet and outlet runner; a piston is arranged in the cylinder barrel; one end of the piston rod is fixedly welded on the piston; the other end of the piston rod passes through the cylinder barrel; the top of the cylinder barrel is provided with a round barrel plug; the inner side wall of the round barrel plug is provided with a support ring, a dust-proof ring 1 and a dust-proof ring 2; the support ring, the dust-proof ring 1 and the dust-proof ring 2 are all sheathed on the piston rod; an oil seal ring is arranged between the support ring and the dust-proof ring; and a seal ring is arranged between the dust-proof ring 1 and the dust-proof ring 2. According to the sealed hydrocylinder, the oil leakage phenomenon and the oil leakage possibility are greatly lowered, and meanwhile the dust-p