Its advantage is: it can be made into various shapes and different stiffness. It can be used for cutting, compressing, or cutting pressure, and it is rarely used for tension. They require good vibration isolation, buffering and noise reduction capabilities, stable performance, long service life, easy to form the required shape, and strong adhesion to metal. The main design parameters of rubber vibration isolators are used as the rubber of vibration isolators. The TJ1 spiral steel spring vibration isolator made in China has a load of 17~1020 kg, a natural frequency of 3.5~2.2 Hz, and a static compression of 20~52 mm. After the natural frequency is given, the vertical stiffness K of a single spring is calculated (N/m is Newton per meter). It is easy to produce rocking motion, so external damping (such as metal Silk, rubber, felt, etc.) and inert blocks. Steel springs have spiral, disc, ring, and plate shapes, and spiral springs are the most widely used. It is easy to transmit vibration along the steel wire at high frequency 3. The damping is very small (the damping ratio is about 0.005), so that the transmission rate is very large at resonance 2. The characteristics change little when mass production. Resistance to corrosion by oil, water, and solvents, and not affected by temperature changes 3. Large static compression, low natural frequency, and good low-frequency vibration isolation 2. The advantages of this type of vibration isolator are 1. They are usually used where static compression is greater than 5 cm or where temperature and other environmental conditions do not allow the use of rubber and other materials. 2. Steel Spring Vibration Isolatorįrom equipment weighing hundreds of tons to lightweight precision instruments, steel spring isolators can be applied. It is especially suitable for hostile environments such as aviation, aerospace, navigation, and the chemical industry. They can be made into a variety of vibration isolators and are suitable for vibration damping and isolation of various electronic instruments, power equipment, and pipelines. Vibration damping and vibration isolation components made of metal rubber are characterized by small size and lightweight. Special requirements for component materials. Therefore, various components made of it can not only work in the above-mentioned harsh environment, but also maintain very good properties in this environment, and can meet the special needs of spacecraft for national defense and some special working environments. And the working temperature of natural rubber is -40☌~60☌ and the working temperature of metal rubber is -150☌~+360☌, its advantages are obvious. For example, because the damping material of the bridge damping bearing is made of natural rubber, it is conceivable that the replacement engineering amount and economic loss caused by the failure of aging can be imagined. The metal rubber component has the characteristics of long storage and long service life, and no aging phenomenon. As the magnitude of the external excitation increases, the "natural frequency" of this product decreases, so it has a good vibration isolation effect it can be said that metal rubber is a loose structure material with high elasticity and good damping characteristics, and its density is only metal About 0.3.īecause the metal rubber material can withstand high temperature, high pressure, high vacuum, and ultra-low temperature, it does not evaporate in the space environment and is not afraid of space radiation and particle impact. That is, the effect of gradually softening stiffness appears, which will reduce the "natural frequency" of the system's spatial direction. Its stiffness characteristic also presents a linear-soft characteristic-hard characteristic non-linear characteristic with increasing amplitude. In the vibration isolation zone, the internal damping decreases rapidly, so it has excellent damping characteristics, with a damping ratio of 0.2 to 0.3. The damping in the resonance zone is significantly increased, which can effectively suppress the resonance peak. Under the action of alternating stress and strain, a large amount of vibration energy is dissipated. The inside is a network, similar to the macromolecular structure of natural rubber. It is especially suitable for solving high and low temperature, large temperature differences, high pressure, and high vacuum. The metal rubber component is made of metal wire and does not contain any natural rubber, but it has the same elasticity and porosity as natural rubber. Metal rubber is a simulation product of natural rubber.
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