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文中叙述了冲击钻进时钻杆的工作条件。指出,钎杆的热处理能提高其耐磨程度。分析了冲击钻进时钎杆尾部的工作条件。为了提高钎杆的耐磨程度和强度,建议增大钎杆横截
The article describes the impact drill when drilling rod working conditions. Pointed out that the rod heat treatment can improve the degree of wear. The working conditions of the end of the drill rod during impact drilling are analyzed. In order to improve the wear resistance and strength of the drill rod, it is suggested to increase the drill rod cross section