What kinds of air springs are there?The classification of air springs is different at home and abroad, according to different standard classification is different.Below we will be all of a sudden scientific popularization of air spring classification, this paper will be a thorough air spring type introduction: air spring has a good nonlinear especially hard properties, so can effectively limit the amplitude, avoid resonance, prevent impact.The natural frequency of the air spring isolation system can be set very low, even up to 1Hz, while the natural frequency of the rubber isolator is 5-7hz.Therefore, the vibration isolation efficiency of the air spring is much higher than other vibration isolation elements, and can isolate low-frequency oscillation.Especially because the air spring vibration isolation system is easy to control, as a kind of vibration isolation element with adjustable nonlinear static, dynamic stiffness and damping characteristics, the application of air spring is more and more widely.Up to now, the classification methods of air springs at home and abroad are not unified. They are listed as follows:
(a) by the number of rubber bags music classification: air spring according to the number of rubber bags music is divided into single, hyperbolic, three songs,......, n.As the number of curves increases, the stiffness decreases, and the natural frequency of the air spring vibration isolation system decreases accordingly.But this not only caused manufacturing problems, but also caused the elastic instability of the rubber capsule, since this only applies to 4 curves.
(ii) classification by structural type:
1. Capsule type air spring: tire type, flat model, earlobe type.
2. The classification of our country: air spring: sac type air spring, constraints, membrane type air spring, free film type air spring, rubber air spring capsule type air spring: bladder type air spring is made of rubber membrane lantern shape structure, can be a concatenated or by several paragraphs, parting, single, hyperbolic or more song capsule type air spring.A metal rim is inserted between each section to assume the effect of internal pressure and tension.