本文利用单点激振多点拾振及信号处理的方法对爪式粉碎机的振动特性作了分析 ,测定了在各阶模态下的固有频率 ,为进一步分析其振动特性及声振关系提供了依据。本文所用的测试方法简单易行 ,对于只需获取低阶模态下的动态特性试验可供参考 In this paper, the vibration characteristic of claw grinder is analyzed by single-point multi-point vibration pick-up and signal processing method. The natural frequencies of the shredder are measured and the vibration frequency and vibration relationship are analyzed The basis. The test method used in this paper is simple and easy, which can be used as a reference only for the dynamic characteristics test under low-order mode