Due to the different principles, gas springs have many advantages over ordinary springs: relatively slow speed, little dynamic force change (generally within), and easy to control; the disadvantage is that the relative volume is not small, the cost is high, and the life is relatively short. Different from mechanical springs, gas springs have almost linear elasticity. The elastic coefficient X of the standard gas spring is between 1.2 and 1.4, and other parameters can be defined according to requirements and working conditions.
The gas spring needs to be preloaded in order to achieve the ballast force required by the design, and its ballast pressure varies with the stroke. This non-constant ballast force may cause the parts to be unable to form, which is not ideal for the drawing force. of. This situation often affects the quality of stamping parts, makes the design of the mold structure more complicated, and affects the time of mold replacement on the press.
The principle of the gas spring is to fill a closed pressure cylinder with inert gas or a mixture of oil and gas, and use the pressure difference generated by the cross-sectional area of the piston rod to be smaller than the cross-sectional area of the piston to realize the movement of the piston rod. The calculation principle of gas spring is a combination of lever principle and straight line inverse proportional theorem.
Post time: Dec-31-2020