The reason why the rubber shock absorber is so widely used is because it effectively uses the following characteristics of rubber:
1) Rubber has high elasticity and viscoelasticity;
2) Compared with the steel material, the elastic deformation of the rubber is very large, and the elastic modulus is very small;
3) The impact stiffness of rubber is greater than the dynamic stiffness, and the dynamic stiffness is greater than the static stiffness, which is conducive to reducing the impact deformation and dynamic deformation;
4) The stress-strain curve is an elliptic lag line, whose area is equal to the heat vibration energy (damping) of each vibration cycle, which can be adjusted by the formula design;
5) Rubber is an incompressible material (Poisson’s ratio is 0.5);
6) The shape of rubber can be selected freely, and the hardness can be adjusted through the formula design, which can meet the requirements of stiffness and strength in different directions.
Classified broadcast
According to the different use conditions, the rubber shock absorber device can be designed into many types. At present, there are more than ten kinds of most commonly used.
1) JP rubber shock absorber: suitable for electronic instruments to protect the whole machine from vibration and impact.
2) JPZ three-way equal stiffness shock absorber: mainly used in aerospace and aviation instruments.
3) JPZ type small aviation shock absorber: used for aerospace, aviation, navigation and other shock isolation and impact prevention devices.
4) JG shear shock absorber: used for fan, air compressor, refrigerator, water pump and precision instruments.
robber absorber
5) Z-type rubber and other frequency shock absorber: widely used in a variety of machinery, instruments, machine tools, equipment, etc.
6) 6 JX shock absorber: used for ships, vehicles and other power machinery.
7) 6 WN type diesel locomotive shock absorber: used for the internal combustion engine host.
8) ” Type 31’rubber shock absorber: used for ship main engine and electronic scale.
9) SH type double plate shock absorber: used for ship machinery and equipment.
Wj rubber shock absorber
10) JV cylindrical spring shock absorber: used for various instruments.
11) YU type cylindrical shock absorber: used for ship main engine, auxiliary equipment and other equipment.
12) WJ rubber shock absorber: it is widely used and can withstand the load in any direction.
13) YXN and XN rubber torsional shock absorber: used for automobile engine crankshaft system.
Advantages of the broadcast
(1) The shape can be freely determined freely, and the hardness can be controlled by adjusting the rubber formula components, which can meet the requirements of stiffness and strength in each direction;
(2) large internal friction, good shock absorption effect, is conducive to cross the resonance area, attenuation of high-frequency vibration and noise;
(3) The elastic modulus is much smaller than that of the metal, which can produce a large elastic deformation;
(4) No sliding part, easy to maintain;
(5) Small quality, easy to install and disassembly.
(6) The impact stiffness is higher than the static stiffness and the dynamic stiffness, which is conducive to the impact deformation.
Application field broadcast
1. Rubber shock absorber for automobile use
2, the railway locomotive and railway sleeper cushion for rubber shock absorption products
3, the rubber shock absorber used for the bridge
4. Rubber shock absorber used for construction engineering
