The working principle of the cylinder - _ cylinder structure

The working principle of the cylinder _ cylinder structure is composed of cylinder, cylinder cover, piston, piston rod and seal, the inner diameter of the cylinder and cylinder size represents the size of the cylinder and output force. Piston within the cylinder do reciprocating sliding smoothly, should reach the inner surface of cylinder surface roughness Ra. um。 Inside the steel cylinder, should also be hard chrome plated surface, to reduce the friction and wear resistance, and can prevent rust. Cylinder material in addition to the use of high carbon steel tube, or use of high strength aluminum alloy and brass. Small cylinder using stainless steel pipe. With magnetic cylinder or switch used in the corrosion environment of cylinder, cylinder should use material such as stainless steel, aluminum alloy or brass. SMCCM two-way sealing is realized by using the combination sealing ring on the piston cylinder, piston and piston rod using the pressure riveting link, no nut. ) End cover on the end cover is equipped with inlet and exhaust his, some are still in the end cover with buffering mechanism. Rod side on the end cover is equipped with the seal and shield, in order to prevent air leakage and outward from the piston rod to prevent external dust entering in cylinder. Rod side on the end cover is equipped with guide sleeve, in order to improve the orientation precision of cylinder, piston rod under the small amount of lateral load, decrease when the piston rod out under bending capacity, extending the service life of the cylinder. Guide sleeve is typically used before sintering oil bearing alloy, copper casting. End cover malleable iron is commonly used in the past, now to reduce weight and anti-rust, often use aluminum alloy die-casting, miniature cylinder with brass material. ) The piston in the cylinder piston pressure parts. Each other so that both cavity to prevent piston gas, is equipped with piston sealing ring. Wear ring on the piston cylinder can be improved guidance, reduce the piston sealing ring wear, reduce frictional resistance. Long wear ring using polyurethane, ptfe, fabric material such as synthetic resin. By the width of the piston ring size and length of sliding parts necessary to decide. Sliding part is too short, easy cause early wear and jammed. The piston material commonly used aluminum alloy and cast iron, small cylinder piston made of brass. ) The stress of the piston rod piston rod cylinder is the most important parts. Often use high carbon steel, hard chrome plating on the surface, or the use of stainless steel, to prevent corrosion, and raise the wearability of seal ring. ) Seal rotating or reciprocating motion component seal is called dynamic seal, still a part of the seal is called static seal. Cylinder and the end cover of connection method basically has the following kinds: overall, riveting, type, flange type, rod type screw thread connection.