风动凿岩机
- 网络pneumatic rock drill;air hammer drill
风动凿岩机-
在普通风动凿岩机钻孔困难的情况下，通过人工开设药孔，用药壶法成功爆破了100m3的碎石质土壤。
In the case of being difficult of drilling with common pneumatic drill , about 100 m3 of debris soil is blasted out successfully by using sprung method through man-made setting up bulled holes .
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风动凿岩机噪声分析及控制
Analysis and Control of the Noise of Rock Drills
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针对现有风动凿岩机消声器的缺点，从凿岩机的工作特性和噪声机理分析入手，提出降低噪声的控制方法，并研制高效实用的排气消声装置。
Taking into consideration the weak points of mufflers of the present rock drills and by analyzing the working characteristic and the noise mechanism , the author has put forward the method to control and reduce the noise , and trial-produced more effective and practical device of mufflers .