What is a planetary reducer? What are the characteristics of planetary reducer

Planetary reducer is an industrial product with a wide range of uses, which can reduce the speed of the motor while increasing the output torque. The planetary reducer can be used as a supporting component in industries such as lifting, excavation, transportation, and construction.

The main transmission structure of the planetary reducer is: bearing, planetary gear, sun gear and inner gear ring.

Working principle of planetary reducer
An inner gear ring (A) is tightly connected to the gearbox housing. The center of the ring gear has a sun gear (B) driven by external power. Between the two, there is a set of three gears that are divided into equal parts. The planetary gear set on the tray (C) This set of planetary gears relies on the output shaft, internal gear ring and sun gear support to float during the period; when the planetary reducer drives the sun gear by the input side power, it can drive the planetary gears to rotate and follow The trajectory of the inner gear ring revolves along the center, and the rotation of the star drives the output shaft connected to the tray to output power.

Features of planetary reducer:
1. The planetary gear reducer adopts modular design, which can be changed and combined according to customer requirements.
2. The reducer adopts involute planetary gear transmission, which makes reasonable use of internal and external meshing and power splitting.
3. The box body is made of ductile iron, which greatly improves the rigidity and seismic resistance of the box body.
4. The gears are all carburized and quenched to obtain a high-hard wear-resistant surface. All gears are ground after heat treatment, which reduces noise and improves the efficiency and service life of the whole machine.
5. The planetary reducer products have 9-34 type specifications, and the planetary transmission stages have 2 and 3 stages.
Reduction ratio: 25～4000r/min (combined with RX, R, K series can achieve greater speed ratio)
Output torque: up to 2600000Nm
Motor power: 0.4-12934kW
Installation form:
1. Foot installation
2. Flange installation
3. Installation of torque arm.
Shaft out method:
1. Solid shaft
2. Solid shaft with involute spline
3. Hollow shaft with open spline
4. Hollow shaft with expansion plate