What are the characteristics of planetary reducer gears?

The main transmission structure of the planetary reducer gear is: planetary gear, sun gear, outer ring gear. Because of structural reasons, the single-stage reduction of planetary reducer gears is as little as 3 and as many as 10. The number of reducers is generally not more than 3, but some large reduction ratios have 4 levels of deceleration compared to custom reducers. Compared with others, planetary reducer gears have the characteristics of high rigidity, high precision (single stage less than 1 point), high transmission efficiency (single stage 97%-98%), high torque/volume ratio, and lifelong maintenance-free. Because of these characteristics, planetary reducer gears are mostly installed on stepper motors and servo motors to reduce speed, increase torque, and match inertia.

The rated input speed of the planetary reducer gear can reach 18000rpm, the output torque is generally not more than 2000Nm, and the special super torque can reach more than 10000Nm. The working temperature is generally around -25 to 100. Changing the grease can change the working temperature.

Several concepts of planetary reducer gear share:

Series: Because one set of gears cannot meet the larger transmission ratio, sometimes two or three sets are needed to meet the requirements of supporting the larger transmission ratio. As the number of star gears increases, the length of the two-stage or three-stage reducer will increase and the efficiency will decrease.

Return clearance: The input end rotates clockwise and counterclockwise, so that the input end produces-2% of the rated torque, the input end of the reducer has a small angular displacement, which is the return gap. The unit is "points", which is the 1/60 of degrees. Some also call it backlash. Planetary reducer gear is a kind of widely used industrial products, its performance and other military grade reducer products, but it has the price of industrial grade products, but it is used in a wide range of industrial occasions.

Planetary reducer gears are small in size, light in weight, high in carrying capacity, long in service life, stable in operation and low in noise. It has the characteristics of power split and multi-tooth meshing. To the large input power can reach 104kW. It is suitable for lifting and transportation, engineering machinery, metallurgy, mining, petrochemical, engineering machinery, textile industry, medical equipment, instrumentation, automobiles, ships, weapons, aerospace and other industrial sectors.

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

To sum up, compared with ordinary gear transmission, planetary reducer gears have a series of outstanding advantages when their parts materials and mechanical properties, manufacturing accuracy, working conditions, etc. are the same, so they are often used as planetary Reducer differential and reversing mechanism and other special purposes.