The effect of different spring stiffness on the torsional vibration displacement of the saw blade by the torsion plate spring tension system. The effect of different spring stiffness of the plate spring tensioning system on the torsional vibration speed of the saw blade. As the spring stiffness increases, the torsional vibration speed of the saw blade increases, and the torsional vibration displacement of the saw blade decreases, which is due to the increase in spring stiffness. For this reason, in the actual selection of springs, from the perspective of reducing the torsional vibration of the saw blade and improving the processing quality of the sawn timber, the appropriate spring stiffness coefficient should be reasonably selected. When the saw is not working, the upper and lower saw card distance is 556mm, and the saw card clearance is 0.27mm. Select the upper saw wheel front plate spring as the input point, the saw blade lateral vibration as the output point, and the glass frosted wire as the input. , the cross-power spectrum analysis of the output, and the self-power spectrum analysis of the output. The plate spring tensioning system band saw machine has a lateral vibration displacement of 0.37 mm, which is 60% lower than the original lever pressure type tensioning system. The lateral vibration speed of the leaf spring tensioning system saw blade is reduced by 41.5% compared with the original lever compression tensioning system saw blade. The lateral vibration of the saw blade of the band saw machine is the main factor affecting the vibration of the band saw machine. The main frequency of the lateral vibration of the saw blade is 76.176 Hz. The leaf spring tensioning system has a large effect on reducing the lateral vibration of the band saw blade. The lateral vibration of the saw blade and the sawtooth is the main factor affecting the vibration of the band saw machine. The main frequency of the saw blade and sawtooth lateral vibration is 62.508 Hz. As the spring stiffness increases, the torsional vibration speed of the saw blade increases, and the torsional vibration displacement of the saw blade decreases. Plate spring tensioning system The band saw machine's torsional vibration displacement is reduced by 70% compared to the original lever compression type tensioning system.
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As the spring stiffness increases, the torsional vibration speed of the saw blade increases.