Precision Instrument Air Spring Shock Absorber
The Website of Shanghai Songjiang Group Introduce to you: Rubber air springs are commonly known as pneumatic tires, corrugated pneumatic tires, air bags, etc. It is a precision-designed rubber fiber bellows that does not provide force or support load itself, but is filled with compressed air by an air compressor to achieve force transmission and elasticity. According to the requirements of the stroke, the air spring is generally designed with 1-3 curves, and can also be designed and manufactured to 4 or 5 curves if necessary. Under certain conditions, two air springs can be superimposed and used.
The air spring has nonlinear characteristics, and its stiffness changes with the load, so its natural vibration frequency remains almost unchanged under any load, so that the spring device has almost constant characteristics; its performance of absorbing high-frequency vibration and sound insulation is good; It bears axial load and radial load at the same time, and through the adjustment of internal pressure, different bearing capacities can be obtained. Therefore, it can adapt to a variety of load needs.
The air spring can adjust the stiffness, height, cavity volume and bearing capacity of the air spring by increasing or decreasing the inflation pressure within the effective stroke. At the same time, its stiffness, height, cavity volume, and bearing capacity will undergo stable and periodic flexible changes with the increase or decrease of the load, thereby realizing the flexible transmission of bearing capacity, effective adjustment of the stroke, and the adjustment of vibration amplitude and vibration load. Efficient control. Air chambers can also be attached for automatic adjustment.
Due to the above characteristics, air springs are increasingly widely used in trains, automobiles, paper machines, lifting platforms, presses, vibrating conveyors, vibrating screens, air hammers, vibration testing machines, foundry machinery, etc. Seismic and seismic isolation equipment or instruments.
The structure of the air spring:
The air spring is a high-tech elastic bellows with metal end caps. Our standard air springs generally consist of 4 layers.
One layer of extruded rubber lining
The first layer of cord fabric strengthens the skeleton layer
The second layer of cord fabric strengthens the skeleton layer
One layer of calendered rubber cover.
If you have special requirements for the compressive strength of the air spring, please contact our technical department, and special models with 4 layers of reinforced plies can also be customized.
The basic parameters of the air spring:
1. Medium
The inside of the air spring can be filled with compressed air, nitrogen or water. If using water to fill the air spring, then add a rust-proof coating to protect the end caps.
The two characteristics of the air spring filled with liquid are as follows:
Reduce the gas volume inside the air spring, thereby increasing the natural frequency of the air spring.
Since water is an incompressible medium, accurate positioning can be achieved.
2. Temperature
The operating temperature range of our standard industrial air springs is: -40℃～+60℃
3. Pressure
The standard air spring is based on our experience: the operating pressure is 0.7 Mpa.
High-strength (four-layer skeleton layer) air spring pressure 1.25 Mpa.
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