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根据相似理论设计制造了大型圆盘锯机模型 ,通过实验对模型锯片的声振特性进行了系统深入的研究。对锯片在径向脉冲激励下 ,采取加大夹盘直径、大夹盘加金属橡胶及锯片钻不同直径孔几种减振降噪措施情况下的声振特性进行了实验测试分析 ,发现虽然几种措施在不同程度上都有减振降噪效果 ,但采用大夹盘加金属橡胶和打孔锯片结合是最有效的综合措施。试验结果将为实际锯机的减振降噪和新型低噪声锯机的设计提供有用数据
According to the similar theory, a large-scale circular sawing machine model is designed and manufactured, and the acoustic vibration characteristics of the model saw blade are systematically studied through experiments. Under the radial pulse excitation of the saw blade, the experimental results show that the vibration and noise reduction under different vibration and noise reduction measures such as increasing the diameter of the chuck, the large chuck, the metal rubber and the saw blade are different. Although several measures have varying degrees of vibration and noise reduction effect, but the use of a large chuck plus metal rubber and punch saw blade combination is the most effective combination of measures. The test results will provide useful data for the vibration and noise reduction of the actual sawing machine and the design of the new low-noise sawing machine