Secondary Vibrational Vibration and Finite Element Analysis of Horizontal Vibrating Centrifuge
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Foreign countries have researched and developed a secondary vibrating horizontal vibrating centrifuge, which is widely used in China's coal preparation industry. However, foreign equipment has the drawbacks of inconvenient maintenance and replacement of rubber springs. Maintenance is quite troublesome (the rubber spring is relied on When the rubber block and the steel member are cold-pressed and bonded together, when the rubber and the adhesive lose their effect, the device can only be overhauled because the spring cannot be replaced, and the domestic maintenance level is low, failing to reach Claim).
At present, the Tangshan Research Institute of the Coal Science Research Institute has developed a horizontal vibrating centrifuge with secondary vibration. The rubber spring can be easily and quickly replaced, and the maintenance is convenient. Therefore, it has great application prospects.
In summary, the key to truly affect the amplitude and stability of the system is the quality of the primary and secondary vibrating bodies and the selection and calculation of the stiffness of the two springs. When the feed changes, the change in the natural frequency of the secondary vibrating body due to the mass of the material does not affect the amplitude and vibration stability of the system. Since the frequency of operation and the natural frequency of the secondary vibrating body are substantially the same, the secondary vibrating horizontal vibrating centrifuge is a linear vibration system in which the primary and secondary vibrating bodies are close to resonance.