Working principle of planetary reducer, structural breakdown, important advantages and products

A ring gear (A) is tightly connected to the gearbox housing, with a sun gear (B) driven by external power at the center of the ring teeth. Between the two, there is a set of planetary gear sets (C) consisting of three gears evenly divided and combined on a tray. The set of planetary gears relies on the output shaft, inner ring gear, and sun gear support to float during this period; When the input side power drives the sun gear, the planetary gearbox can drive the planetary gear to rotate and follow the trajectory of the inner ring gear to revolve around the center. The rotation of the planetary gear drives the output shaft connected to the tray to output power.
Structural decomposition
Decomposition diagram of planetary gearbox
The main transmission structure of the planetary gearbox is: planetary gear, sun gear, and internal ring gear.
The left image shows the detailed structure.
Important advantages
The internal gears of the planetary reducer are made of 20CrMnTi carburizing quenching and gear grinding, which have the characteristics of small size, light weight, high load-bearing capacity, long service life, smooth operation, low noise, large output torque, high speed ratio, high efficiency, and safe performance. It has the characteristics of power splitting and multi tooth meshing for exclusive use. It is a new type of gearbox with wide versatility. The maximum input power can reach 104 kW. Suitable for industrial sectors such as lifting and transportation, engineering machinery, metallurgy, mining, petrochemicals, construction machinery, light industry and textiles, medical equipment, instruments and meters, automobiles, ships, weapons, and aerospace. These planetary series new varieties include WGN fixed axis transmission reducers, WN mother and child gear transmission reducers, and elastic load less tooth difference reducers.
product
Planetary gear reducers have the characteristics of light weight, small size, wide transmission ratio range, high efficiency, smooth operation, low noise, and strong adaptability. Gearboxes are widely used in industrial sectors such as metallurgy, mining, lifting and transportation, electricity, energy, building materials, light industry, and transportation.
Product Description:
1. The P series planetary gear reducer adopts modular design and can be combined according to customer requirements,
2. The reducer adopts involute planetary gear transmission, making reasonable use of internal and external meshing and power splitting,
3. The box is made of ductile iron, which greatly improves the rigidity and seismic resistance of the box,
4. The gears are all treated with carburizing and quenching to obtain a high hardness and wear-resistant surface. After heat treatment, all teeth of the gears are ground, reducing noise and improving the efficiency and service life of the whole machine.
5. The P series planetary gearbox products have 9-34 specifications, and the planetary transmission stages are 2 and 3.
Reduction ratio: 25~4000r/min (combined with RX, R, K series to achieve higher speed ratios)
Output torque: up to 2600000Nm
Motor power: 0.4-12934kW