What is A Servo Planetary Reducer?

- Oct 19, 2019-

The servo reducer is a versatile industrial product that is comparable in performance to other military grade reducer products, but has the price of industrial grade products and is used in a wide range of industrial applications.  

The reducer is small in size, light in weight, high in load carrying capacity, long in service life, stable in operation, and low in noise. It has the characteristics of power splitting and multi-tooth meshing. The maximum input power is up to 104kW. Suitable for lifting, transportation, engineering machinery, metallurgy, mining, petrochemical, construction machinery, light industrial textiles, medical equipment, instrumentation, automotive, marine, weapons and aerospace industries, a new series of planetary series WGN fixed shaft transmission reducer , WN sub-mother gear reducer, elastic load-carrying gear reducer.

The planetary reducer is a new type of reducer with wide versatility. The internal gear adopts 20CvMnT carburizing and grinding. The whole machine has the characteristics of small structure size, large output torque, high speed ratio, high efficiency and safe and reliable performance. This machine is mainly used for the slewing mechanism of tower cranes, and can also be used as supporting components for lifting, digging, transportation, construction and other industries.

What is a servo reducer?

Composition and meaning, characteristics

The main transmission structure of the servo reducer is: planetary gear, sun gear, outer ring gear.

Due to structural reasons, the single-stage deceleration of the servo reducer is 3, the maximum is generally less than 10. The common reduction ratio is 3.4.5.6.7.8.10, and the number of reducer is generally not more than 4, but there are some large reduction ratios. The machine has 4 levels of deceleration. 

Compared with other reducers, the servo reducer has high rigidity, high precision (single level can be less than 1 minute), high transmission efficiency (single stage is 97%-98%), high torque/volume ratio, lifetime maintenance free, etc. Features.  

Because of these characteristics, servo reducers are mostly installed on stepper motors and servo motors to reduce the speed, increase the torque, and match the inertia.  

The rated input speed of the servo reducer can reach up to 18000 rpm (depending on the size of the reducer itself, the larger the reducer is, the smaller the rated input speed is). The output torque of the industrial grade planetary reducer is generally not more than 2000Nm. The special super-torque planetary reducer can be used. It can achieve more than 10000Nm. The working temperature is generally between -25°C and 100°C. The working temperature can be changed by changing the grease.  

Several concepts of servo reducer: 

Number of stages: the number of sets of planetary gears. Since a set of star gears cannot satisfy a large gear ratio, sometimes 2 or 3 sets are required to meet the requirements of a larger gear ratio. Due to the increase in the number of star gears, level 2 Or the length of the 3-stage reducer will increase, and the efficiency will decrease.

Return gap: The output end is fixed, the input end rotates clockwise and counterclockwise, so that the input end produces a rated torque +-2% torque, the input end of the reducer has a slight angular displacement, this angular displacement is the return clearance. It is a "point", which is one-sixtieth of a degree. Some people call it backlash.  

The servo reducer is a versatile industrial product that is comparable in performance to other military grade reducer products, but has the price of industrial grade products and is used in a wide range of industrial applications.

The reducer is small in size, light in weight, high in load carrying capacity, long in service life, stable in operation, and low in noise. It has the characteristics of power splitting and multi-tooth meshing. The maximum input power is up to 104kW. Suitable for lifting, transportation, engineering machinery, metallurgy, mining, petrochemical, construction machinery, light industrial textiles, medical equipment, instrumentation, automotive, marine, weapons and aerospace industries, a new series of planetary series WGN fixed shaft transmission reducer , WN sub-mother gear reducer, elastic load-carrying gear reducer.

The planetary reducer is a new type of reducer with wide versatility. The internal gear adopts 20CvMnT carburizing and grinding. The whole machine has the characteristics of small structure size, large output torque, high speed ratio, high efficiency and safe and reliable performance. This machine is mainly used for the slewing mechanism of tower cranes, and can also be used as supporting components for lifting, digging, transportation, construction and other industries.