Structure and working principle of gas spring

1.The gas spring is an elastic element with gas and liquid as the working medium. It is composed of a cylinder, a pressure tube, a piston, a piston rod, and a number of coupling parts. Its interior is filled with high-pressure nitrogen, because there are through holes in the piston. The gas pressure at both ends of the piston is equal, and the cross-sectional area on both sides of the piston is different. The piston rod is connected to one end and not at the other end. Under the action of the gas pressure, the pressure to the side with the smaller cross-sectional area is generated, that is, the elastic force of the gas spring. The magnitude of the elastic force can be set by setting different nitrogen pressures or different diameter piston rods.

2.The working principle of the gas spring is to use nitrogen as an elastic medium, with oil (such as transformer oil and turbine oil 50% each) to seal and lubricate and transmit pressure. The elastic element is referred to as gas spring. It is actually a sleeve type air spring. A variant of is also developed to further improve the elastic characteristics of the sleeve-type air spring. Therefore, it also has the general characteristics of the air spring structure. Gas springs are generally composed of cylinders, pistons (rods), seals and external connectors. High-pressure nitrogen or gas and oil form a circuit in the cylinder. The damping on the piston makes the rod chamber and the rodless chamber communicate, so that the pressure in the two chambers is equal. The elastic force is generated by the difference in the force-bearing area of the two chambers and the compressibility of the gas.

3. Gas springs are also called support rods, gas supports, angle adjusters, air pressure rods, dampers, etc. according to their characteristics and different application fields.


Post time: Apr-30-2020