气动凿岩机钎杆的噪声控制研究与应用

Study and application of the drill noise control in the pneumatic rock driller

为了达到降低钎杆噪声的目的,本文对弯曲波的特性进行实测数据分析,其次对钎杆噪声的频率特性进行了分析,总结出钎杆噪声的治理方法,并得出用阻尼材料对钎杆进行处理后可以达到5～17 dB(A)的降噪效果。

For reducing the drill noise, this paper analyzes the drill flexural wave characteristic by measured amount and the noise frequency characteristic, concludes the solution, and achieves the 5 - 17 dB（A） noise reduction after it is treated by damping material.