前言提高齿轮承载能力有三个途径,即:改进减速器结构、修改齿形、提高齿轮强度。这三个方面的大量研究工作和不断创新,推动着齿轮承载能力的不断提高。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。大型低速重载齿轮笨重,生产批量少,开展试验研 Preface There are three ways to improve the bearing capacity of the gear, namely: to improve the structure of the gear unit, to modify the gear shape and to increase the gear strength. These three aspects of a large number of research and continuous innovation, to promote the continuous improvement of gear carrying capacity. The above three ways to improve gear strength, the greatest potential, the effect is also more significant. Large low-speed heavy-duty heavy-duty heavy vehicles, production of small quantities, to carry out pilot research