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AIR SPRINGS
NASEEL IBNU AZEEZAsst. ProfessorMechanical EngineeringEmail: [email protected]
Its produces spring action with the help of compressed air
Components Of Air Spring
Types Of Air Springs
Working Of Air Springs
Design Considerations1. Stiffness Of The Spring Change In Pressure Change In Effective area
2.Pressure Inside The Bellow/Diaphragm
3.Stroke
4.Zero Torsion
5.Tilt Angle
Operating Temperature Range Fabric - reinforced Wingprene: - 40°F to 150°F (-40°C to 65°C) Fabric - reinforced Natural Rubber: - 76°F to 150°F (-60°C to 65°C)
Standard Materials Flex Members: Fabric - reinforced Wingprene Fabric - reinforced natural rubber
End Retainers: Forged steel Cast zinc alloy Cast aluminum
ADVANTAGES LOW COSTGenerally, initial cost is one-half or less than conventional pneumatic or hydraulic cylinders of the same force capabilities. This initial cost advantage is many times greater in he larger sizes. WIDE SIZE RANGEAir stroke actuators are available in sizes ranging from 2.2 inches to 37 inches in diameter.The force capability is 100,000 pounds. Strokes of up to 14 inches are possible.
DURABLE FOR LONG LIFE
NO MAINTENANCE OR LUBRICATION REQUIRED
FRICTION FREE FOR IMMEDIATE RESPONSE Since Air stroke actuators have no sliding seals, there is no breakaway friction as with conventional cylinders
FLEXIBLE MEDIA An Air stroke actuator can do its work with either a liquid or gas
ANGULAR CAPABILITYAn Air stroke possesses the unique capability of stroking through an arc without a clevis.Angular motion of up to 30 degrees is possible, along with the design advantage of generally less complex linkages.
Applications
Actuation Spring Vibration Isolation