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霍曼(H.Heumann)氏在1913年发表了他的文章以后,推动了轮缘导向这一科学的发展。他发表了不少有价值的研究成果,并且曾经借此克服了英国铁路车辆走行部分设计中的许多问题,同时也产生了利用几种断面形状的轮箍来研究车辆在轨道上的运行特性和经济的愿望。参阅图1可以看出,在钢轨和轮箍外形之间,存在着某些不协调性。轮箍具有1:20或约2°50′的锥度,而钢轨则在铅垂面上做成1:20的斜度。轮箍锥度一直延伸到轮缘根圆半径处,使车轮有可能同时以A和A_1两点接触钢轨;A点是荷重支承点,而A_1则是导向点。
After his publication in 1913, H. Heumann promoted the development of rim-oriented science. He has published many valuable research results and has thus overcome many of the problems in the design of the British rail vehicle’s runway and has also produced the use of several cross-sectional shapes of the wheel hub to study the behavior of the vehicle on the orbit Economic aspirations. Referring to Figure 1, it can be seen that there is some mismatch between rail and tire profile. The rim has a taper of 1:20 or about 2 ° 50 ’while the rails make a 1:20 slope on the vertical plane. The rim taper extends to the radius of the root flange of the rim, making it possible for the wheel to contact the rail at two points A and A_1 at the same time; point A is the point of load support and A_1 is the guide point.