What is a BE type rubber shock absorber?

The BE rubber isolator is made of metal and rubber composite, and the metal surface is all covered with rubber, which can prevent metal corrosion. The product has oil resistance, sea water resistance, salt spray resistance and sunshine resistance, etc., can meet various environmental conditions such as land and marine, and the product quality indicators have reached the relevant military indicators of the United States.

BE rubber shock absorber main features::

The natural frequency of the BE type rubber isolator is low, the damping ratio is appropriate, the lateral stiffness is higher than the vertical stiffness, and it is suitable for various installation forms such as horizontal, inverted and side-mounted, and has good lateral stability when used horizontally.

When bearing a large impact, it can automatically limit the protection, and at the same time, the inflection ability of the resonance peak is very strong, and the natural vibration energy caused by the transient impact response to the transient excessive working condition quickly disappears, and the equipment will not have any shaking, and the product has a fairly obvious vibration isolation effect in a wide range of interference frequencies.

BE rubber shock absorber main uses:

It can be applied to all kinds of land and marine machinery and equipment, such as diesel engines, fans, pumps, air compressors, air conditioners, precision instruments and other small and medium-sized machinery and equipment vibration isolation. For mechanical equipment with horizontal disturbance, the use of this vibration isolator can achieve a good vibration isolation effect.

Scope of application of rubber shock absorbers:

1.Vibration sources are attributed to vibration damping and noise control of high-frequency rotating industrial equipment. For example, fans, centrifugal pumps, diesel generators, air conditioning hosts, etc. The rotation frequency of industrial equipment should be high, and 1000 rpm rubber shock absorbers should be selected.

2.The impact frequency of the stamping equipment should bypass the resonance frequency of the rubber shock absorber. For example, stamping machines, die-cutting machines, punching machines, etc.

3.Because rubber shock absorbers have a shock-absorbing effect, they are used in machinery and equipment, ocean navigation and other industries.

4.Other industrial equipment. Because of the characteristics of rubber shock absorbers, there are many places where the field of rubber and plastic products is very unsuitable.

Rubber will become brittle at minus 30 degrees, lose its own ductility and elastic deformation, at this time can not play the effect of shock absorption, so in too cold conditions, do not need to apply rubber shock absorbing goods, in case of achieving the desired actual effect. Rubber can't withstand high temperatures. As long as it exceeds 75, its internal structure will change, and the ductility will be reduced and carried back, and naturally there will be no more shock absorption work.

If the temperature continues to rise, it may ignite. Therefore, if you are in very high temperature conditions, do not use rubber shock absorbers, otherwise it is not easy to have the predicted shock absorption effect. Based on the above statement, we can conclude that we should apply different rubber shock absorbers in different regions, and different products will have different practical effects, but no matter which products are used, we need to fully grasp the characteristics of hail dust rubber shock absorbers in the early stage.

Only by selecting the right rubber shock absorbers and applying them in the right area will it be able to get the most out of it.

The damping properties of rubber are converted from absorbing vibration energy to heat energy, and its vibration resistance is greater than that of metal, which is suitable for high-frequency vibration. The rubber shock absorber has simple structure, easy maintenance, no wear, no corrosion, no lubricating oil, relatively safe and reliable use, low cost and long service life. Its presence is a great uproar, which reduces many vibrational effects; Not only is the noise associated with vibration reduction reduced, but it can be said to be the largest of all shock absorbers on the market; Rubber is an ideal shock-absorbing material with a vibration-damping effect; The compressive strength of rubber is much greater than the tensile strength.

In general, the length of stretch rubber is about 6 times the distance of compression reed. When subjected to stretching or stretching, the natural vibration frequency of rubber is different; Rubber has great linear flexibility, can elongate to fracture without losing elasticity, does not lose elasticity, bears alternating stress, and is not easy to fatigue; Rubber can hardly be compressed like water, and only elastic deformation will occur after pressure, but the volume remains the same; There are many kinds of rubber shock absorbers available on the market, including shock absorbing pads, such as low-frequency composite rubber shock absorbers are typical; The low-frequency composite rubber shock absorber is composed of metal and rubber, the metal surface can effectively prevent metal corrosion, and the natural frequency of the product is low, so the shock absorption ratio is appropriate. If the horizontal stiffness is greater than the vertical stiffness, it is suitable for horizontal, inverted, side-mounted and other installation forms.

In the horizontal state, the horizontal stability is good, and the rubber shock absorber has an obvious shock absorption effect. When subjected to a large impact, it can be automatically limited for protection. If it is resistant to resonance peaks at the same time, the resistance is strong, and it can respond to the instantaneous impact masking caused by transient overworking conditions.

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The structure of the rubber shock absorber.

It consists of a metal coil spring and vulcanized rubber wound around it, and usually has some elastic deformation ability. Since the structure is composite, it can have the advantages of rubber and metal.

Features of rubber shock absorbers.

1.The rubber shock absorber is integrated, which overcomes the shortcomings of high rigidity, high working noise, small weight of rubber springs, poor shape and poor mechanical stability.

2. It has a certain coefficient of friction, which has a better effect on shock absorption and noise reduction. In addition, its elastic deformation becomes larger, so it has a large load-bearing capacity, stable operation and a short resonance interval.

3.Although the shape of the rubber shock absorber is fixed, due to the large elastic deformation of the rubber, it is easy to meet the nonlinear requirements and works better on the individual components. Features of rubber shock absorbers.

1.Rubber has high elasticity and viscoelasticity;

2.Compared with steel, rubber has large elastic deformation and small elastic mold.

3.The impact bending stiffness of rubber exceeds the dynamic bending stiffness, and the dynamic bending stiffness exceeds the static data bending stiffness, which is beneficial to reduce impact deformation and dynamic deformation.

4.The in-situ stress-strain curve diagram is an elliptical backward line, and the total area is equivalent to the kinetic energy (damping) of thermal vibration converted into each vibration cycle, which can be adjusted by the design scheme.

5.Rubber shock absorbers are raw materials that cannot be reduced (modulus of elasticity;

6.The appearance of the rubber shock absorber plastic can be arbitrarily selected, and the strength can be adjusted according to the secret recipe design scheme, which can achieve the strength and compressive strength requirements of different directions;

7.It is difficult to achieve the resonance frequency of rubber shock absorber below 5Hz;

8.The strength of rubber shock absorbers to resist natural environment and high temperature transition is poor, and the service life is short;

9.The rubber shock absorber does not have a rolling part, which is easy to maintain.

Rubber shock absorbers are quite different from other shock absorbers, but its effect is to reduce vibration.

The main purpose of rubber shock absorber: rubber shock absorber is a key shock absorbing component, the main use of rubber shock absorber is relatively wide, has been widely used in various mechanical equipment, trolleys, railway line electric locomotives, marine vehicles, airports and other spacecraft. At this stage, it applies to the following 4 levels:

1. Rubber shock absorber for automobiles.

2. Rubber shock-absorbing handicrafts for railway line electric locomotives and railway line sleeper pads.

3. Rubber shock absorbers for highway bridges.

4. Rubber shock absorbers for engineering construction.

Rubber shock absorber characteristics:

The use of rubber shock absorbers is very common, with long-term high elasticity, excellent shock absorption, impact isolation and sound insulation performance. Its styling design and suppression are convenient, and the shape and specification can be selected at will to take into account the requirements of stiffness and strength; It has a certain vibration damping performance, which can digest and absorb mechanical kinetic energy, and the digestion and absorption of high-frequency vibration kinetic energy is particularly prominent; Because the rubber raw material and the metal surface can be firmly bonded, it is not only convenient for production and installation, but also can be used to reduce the bending stiffness and change its frequency range, which is of high quality and low price.

All items will not have, so a rubber shock absorber is not seamless, it also has some insufficiency, such as susceptible to temperature, oil, active oxygen, sunlight and organic chemical organic solvent corrosion, resulting in performance transformation and embrittlement, easy to relax, so the service life is generally about 8 years, but no left and right corrosion service life can exceed 10 years.

The performance of the rubber shock absorber is related to the shape and formula of the rubber pad and the strength, with high strength, large bending stiffness, heavy load-bearing, low strength, low bending stiffness and small load-bearing. The strength of some rubber shock-absorbing pads is varied, and you should pay attention to it when using it.

Not only elastic cotton, but also high viscoelasticity, the ductility of rubber is due to the change in its rolling molecular structure, the conversion between rubber molecules will hinder the molecular chain of the molecular chain, and there are mainly viscous characteristics that cause internal stress and strain force to be in an unbalanced state. The secondary ring force between the long chain type and the molecular structure of this kind of film is weak, which promotes the rubber material to show viscosity and ductility, so it has good shock absorption, sound insulation and noise reduction properties. Rubber components are widely used to protect vibration and absorb impact because of their backwardness, vibration damping, interruptibility and reversibility.

In addition, rubber has two characteristics: backward and rolling friction, which are generally expressed by the loss coefficient, the larger the loss coefficient, the more obvious the vibration damping and heat generation of the rubber, and the more obvious the shock absorption effect.

1) Rubber shock absorbers that support a small range of various equipment;

2) Rubber hydraulic buffer for the purpose of absorbing the peak;

3) Rubber shock absorbers used as components for the operation of machinery and equipment;

4) Remove the power shock absorber that vibrates at special vibration frequencies;

5) Rubber joints are also included in the range of rubber shock absorbers.

As an important type of shock absorbing components, rubber shock absorbers have been widely used in various machinery, automobiles, railway locomotives, water vehicles, aircraft and other aircraft. It can be said that rubber shock absorbers are needed wherever shock absorption and isolation are needed.

The reason why rubber shock absorbers are so widely used is that it effectively uses the following characteristics of rubber:

1) Rubber has high elasticity and viscoelasticity;

2) Compared with steel, the elastic deformation of 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 impact deformation and dynamic deformation;

4) The stress-strain curve is an elliptical hysteresis line, and its area is equal to the vibration energy (damping) converted into heat in each vibration cycle, which can be adjusted by formula design;

5) Rubber is an incompressible material (Poisson's ratio is;

6) The rubber shape can be freely selected, and the hardness can be adjusted by formula design, which can meet the requirements of stiffness and strength in different directions.

1) The shape can be determined freely, and the hardness can be controlled by adjusting the components of the rubber formula, which can meet the requirements for stiffness and strength in all directions;

2) The internal friction is large, and the shock absorption effect is good, which is conducive to crossing the resonance zone and attenuating high-frequency vibration and noise;

3) The elastic modulus is much smaller than that of metal, which can produce large elastic deformation;

4) No sliding part, easy to maintain;

5) Small weight, easy to install and disassemble.

6) The impact stiffness is higher than the static stiffness and dynamic stiffness, which is conducive to impact deformation.

1) The appearance design can be arbitrarily changed, and the strength can be manipulated by adjusting the components of the rubber formula, so that the stiffness and strength can be achieved in every direction;

2) The internal friction is large, and the shock absorption effect is good, which is conducive to crossing the resonance area and trapping the chain, and losing high-frequency vibration and noise;

3) The elastic mold is much smaller than that of the metal material, resulting in large elastic deformation;

4) There is no rolling part, which is easy to maintain;

5) Small quality, easy to install and disassemble.

6) The impact bending stiffness is higher than the static bending stiffness and dynamic stiffness, which is beneficial to the impact deformation of the finch.

Disadvantages of rubber shock absorber: of course, the working frequency is relatively high, the pressure amount is small, it is very susceptible to external environmental hazards, the characteristic ruler seepage is not stable, and the application service life is short.

The advantages of rubber shock absorbers are as follows:

1. Its existence will greatly reduce many vibration effects;

2. Not only the vibration is reduced, but the accompanying noise is also reduced, and the degree of reduction can be said to be the largest among all the shock absorbers on the market;

3. Since rubber is an ideal shock-absorbing material, it has a damping effect on vibration;

4. The compressive strength of rubber is much greater than the tensile strength. The stretchable length of rubber is generally about 6 times greater than the compression distance. When rubber is stretched or compressed, its natural vibration frequency is not the same;

5. Rubber has great linear flexibility, which can be stretched to rupture without losing its elasticity, and can withstand alternating stress without being prone to fatigue;

6. Rubber, like water, is almost incompressible, and will only produce elastic deformation after compression, but its volume is unchanged;

7. There are quite a lot of types of rubber shock absorbers on the market, including shock absorber pads, such as low-frequency composite rubber shock absorbers, which is a typical one;

8. The components of the low-frequency composite rubber shock absorber: made of metal and rubber composite, if the metal surface is fully covered with rubber, it can effectively prevent metal corrosion, and the natural frequency of the product is low, so the damping ratio is appropriate, if the lateral stiffness is higher than the vertical rigid Li Ling degree, it is suitable for flat, inverted and side-mounted and other installation forms. Good lateral stability when used in a flat state;

9. The rubber shock absorber has an obvious shock absorption effect, and can be automatically limited to protect when bearing a large impact, at this time, if it is a strong resistance to the resonance peak at the same time, it can respond to the transient impact and the self-shock energy caused by the instantaneous excessive working conditions will disappear quickly, and the equipment will not have any shaking;

10. Rubber shock absorbers are widely used in many industries, which can not only have a fairly obvious seismic isolation effect in a wide range of interference frequencies, but also can be applied to all kinds of land and marine machinery and equipment, such as diesel engines, fans, pumps, air compressors, air conditioners, precision instruments and other small and medium-sized machinery and equipment. It can also achieve good seismic isolation effect for mechanical equipment with horizontal disturbance.