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前言提高齿轮承载能力有三个途径,即:①改进减速器的结构,例如采用行星传动减速器等,②改进齿形,例如采用修正齿、圆弧齿形等;③提高齿轮强度,例如改进齿轮的材料和热处理,以提高齿轮许用应力值。国内外在这三个方面都进行着大量的研究工作,并不断创新,推动着齿轮承载能力的不断发展。上述三个途径中以提高齿轮强度的潜力最大,效果也较显著,在这方面的研究和发展也较快。大型低速重载齿轮笨重,生产批量少,开展试验研究工作比较困难,比汽车、机床等小型齿轮的发展要慢。
Preface There are three ways to improve the bearing capacity of the gear, namely: ① improving the structure of the reducer, for example, using a planetary gear reducer, etc. ② improving the shape of the tooth, such as using a modified tooth, arc tooth profile, etc .; ③ increasing gear strength, Materials and heat treatment to increase gear allowable stress values. At home and abroad in these three aspects are a lot of research work, and constant innovation, and promote the continuous development of gear carrying capacity. The above three ways to improve gear strength has the greatest potential, the effect is also more significant in this regard, research and development is also faster. Large low-speed heavy-duty heavy-duty heavy vehicles, the production of small quantities, to carry out experimental research more difficult, than cars, machine tools and other small-scale development of the slow.