在实际生产中,有很大一部分传动比大并且大轮的节锥角在60°以上的弧齿锥齿轮副,其从动大轮可以考虑采用精锻工艺生产,小轮采用常规铣齿工艺与大轮相配。根据以上加工方法,设计具有良好啮合性能的齿面加工参数,并根据该加工参数创建齿轮副的精确三维模型,本模型可以用于制作弧齿锥齿轮的精锻大轮模具。以一对弧齿锥齿轮为例,完成了大轮的精锻工艺试制,以及小轮的铣齿配对试验。试验结果表明,精锻大轮的齿距误差精度可以控制在7~8级,小轮通过铣齿加工与精锻大轮相配,齿面接触区良好。本工艺可以大幅度的提高弧齿锥齿轮的生产效率,降低能耗,增大齿轮副的整体强度,具有广阔的应用前景。
In actual gear manufacturing, there is a large part of spiral bevel gears with big transmission rasion ing and its driven gear cone angle is larger than sixty degrees. The above driven gear can be produced by preciforging technics, and the pinion can be produced by traditional face - milling method to match for the forggear. According to the process method mentioned upon, the tooth surface machining parameters which ensure spiral bevel gear has good meshing performance is designed. And according to the accurate machining parameters, spiral bevel gear 3D model can be created. This 3D model can be used to make driven gear precision improving the machining efficiency of spiral bevel gear, reducing energy consumption, enhancing the gear strength, it must has a broad application prospect.