减速器的种类繁多，按照传动类型可分为齿轮减速器、蜗杆减速器和行星齿轮减速器；减速机内部齿轮齿形修整（修缘和修根）和齿顶倒角将齿顶的齿形切削成比正确的渐开曲线略呈凸形。按照传动级数不同可分为单级和多级减速器；按照齿轮形状可分为圆柱齿轮减速器、圆锥齿轮减速器和圆锥－圆柱齿轮减速器；按照传动的布置形式又可分为展开式、分流式和同轴式减速器。

There are many types of reducer according to tran***ission type can be divided into gear reducer, worm reducer and planetary gear reducer; according to tran***ission series can be divided into single and multi-stage gear reducer; according to the shape can be divided into cylindrical gear reducer, bevel gear reducer and cone - cylindrical gear reducer; according to the arrangement the form of tran***ission can be divided into expansion, split and coaxial reducer.

在运转200~300小时后，应进行换油，在以后的使用中应定期检查油的质量，对于混入杂质或变质的油须及时更换。一般情况下，对于长期连续工作的减速机，按运行5000小时或每年一次更换新油.

After running for 200~300 hours, the first oil change should be done. The quality of the oil should be checked regularly in later use, and the oil mixed with impurities or deterioration must be changed in time. In general, for a long-term continuous working reducer, new oil is replaced at 5000 hours or once a year.

减速机内部齿轮变位系数选择 正确合理选择变位系数，不但可以凑合中心距，避免齿轮根切，保证满足同心条件，改善齿轮的传动性能和提高其承载能力及提高齿轮的使用寿命，还可以有效控制 侧隙、温升与噪声。

The change coefficient of gear displacement coefficient in the reducer is selected correctly and reasonably. It can not only make the center distance, ***oid the gear cutting, meet the conditi, improve the tran***ission performance of the gear and improve its bearing capacity and improve the service life of the gear, but also can effectively the side gap, temperature rise and noise.

减速机内部齿轮齿形修整（修缘和修根）和齿顶倒角 将齿顶的齿形切削成比正确的渐开曲线略呈凸形。当齿轮齿面受外力产生变形时，可以避免对与之啮合的齿轮产生干涉，并且可以降低噪音，延长齿轮寿命。

The internal gear of the reducer is trimmed (trim and trim) and tooth top chamfering to make the tooth shape of the tooth top convex than the correct involute curve. When the gear tooth surface is deformed by external force, it can ***oid interference to the gears engaged with it, and can reduce noise and prolong the service life of gears.