Study on cutting resistance of different blade structures in condition of similar blade-edge
The structures of flat blades were improved considering two ways of reducing the rake angle of the flat blade and adding horizontal plate, and the blades improved by the two ways were regarded as simple blade and complex blade, respectively. The concept of edge similarity among different blade structures was introduced, and three groups of simple blades and complex blades with average values of 56.8, 114.6 and 187.8 mm were designed. Based on self-designed testing apparatus, contrast tests under three different cutting depths of 30, 60 and 90 mm on grading soil were carried out to compare the cutting resistance. The results show that four groups of test’s cutting resistances of the simple blades are less than those of the complex blades, and other four groups of tests present a similar cutting resistance, and only one group of test’s cutting resistance of simple blade is higher than that of the complex blade. Therefore, it is an effective and feasible method that complex blades structure is replaced by simple ones in condition of different blades’ structures with similar blade-edge with only considering cutting resistance.
国家科技期刊平台
NSTL
万方数据
维普
