行星减速机主要结构及特点

行星减速机主要传动结构为:行星轮,太阳轮,外齿圈.　　

行星减速机因为结构原因,单级减速最小为3,最大一般不超过10,常见减速比为:3.4.5.6.8.10,减速机级数一般不超过3,但有部分大减速比定制减速机有4级减速.

相对其他减速机,行星减速机具有高刚性,高精度(单级可做到1分以内),高传动效率(单级在97%-98%),高的 扭矩/体积比,终身免维护等特点.

因为这些特点,行星减速机多数是安装在步进电机和伺服电机上,用来降低转速,提升扭矩,匹配惯量. 　　减速机额定输入转速最高可达到18000rpm(与减速机本身大小有关,减速机越大,额定输入转速越小)以上,工业级行星减速机输出扭矩一般不超过2000Nm,特制超大扭矩行星减速机可做到10000Nm以上.工作温度一般在-25℃到100℃左右,通过改变润滑脂可改变其工作温度.

Main structure and characteristics of planetary gearbox
The main transmission structure of the planetary gearbox is: planetary gear, sun gear, and external gear ring
Due to structural reasons, the minimum single-stage reduction of planetary reducers is 3, and the maximum is generally not more than 10. The common reduction ratio is 3.4.5.6.8.10, and the number of reducer stages generally does not exceed 3. However, some customized reducers with large reduction ratios have 4 stages of reduction
Compared to other reducers, planetary reducers have the characteristics of high rigidity, high precision (up to 1 point per stage), high transmission efficiency (97% -98% per stage), high torque/volume ratio, and lifetime maintenance free
Due to these characteristics, planetary gearboxes are mostly installed on stepper motors and servo motors to reduce speed, increase torque, and match inertia The maximum rated input speed of the reducer can reach 18000rpm (depending on the size of the reducer itself, the larger the reducer, the lower the rated input speed). The output torque of industrial grade planetary reducers generally does not exceed 2000Nm, and specially designed ultra high torque planetary reducers can achieve over 10000Nm The working temperature is generally around -25 ℃ to 100 ℃, and its working temperature can be changed by changing the lubricating grease