【摘要】 以两类典型的电动冲击钻为研究基础,分析了电钻工作时噪音的来源及产生机理,提出了提高齿轮加工精度,合理分配安装距,使用较紧凑的结构,选择合适的降噪材料,以及安装降噪套筒等方法,分别从内部传动与外部结构两方面来降低冲击钻噪音.更多还原

【Abstract】 Two typical percussion drillers are investigated,and the sources and generation mechanism of noise of working drillers are analyzed,then noise reduction methods are proposed.Methods including increasing the precision of gear working,use of the compact construction,choice of suitable materials are proposed to realize reduction of the impact of drilling noise based on two aspects,internal transmission part and exterior construction part.更多还原