The principle of flange output planetary reducer

Release Time：

2025-03-06

The principle of the flange output planetary reducer is based on the planetary gear system, mainly composed of components such as the sun gear, planetary gear, planetary carrier, and internal gear ring. The specific principle is as follows:

The principle of flange output planetary reducer
The principle of the flange output planetary reducer is based on the planetary gear system, mainly composed of components such as the sun gear, planetary gear, planetary carrier, and internal gear ring. The specific principle is as follows:

-Power input: The drive source is connected to the input shaft, which drives the sun gear to rotate. The sun gear is the active component of the entire transmission system, providing the power source for the system.

-Planetary gear movement: The rotation of the sun gear drives the planetary gears to roll between the sun gear and the ring gear. The planetary gear revolves around the sun gear and also rotates around its own axis. Due to the simultaneous meshing of the planetary gear with the sun gear and inner ring gear, according to the principle of gear transmission, its motion state is determined by factors such as the gear ratio between the sun gear and inner ring gear, as well as the rotational speed of the sun gear.

-Deceleration output: The planetary carrier is connected to the planetary gear, and the revolution of the planetary gear drives the rotation of the planetary carrier. The planetary carrier is connected to a flange output shaft, which transmits the motion and torque after deceleration to the load through the flange, thereby achieving the effect of deceleration and torque increase. The rotational speed of the planetary carrier is lower than that of the sun gear, and the gear ratio between the planetary gear and the sun gear, as well as the inner ring gear, determines the reduction ratio. Usually, the number of teeth on the sun gear is relatively small, while the number of teeth on the inner ring gear is relatively large. By designing the tooth relationship between the three, the planetary carrier can output at a lower speed to achieve deceleration, while increasing the output torque.

In a multi-stage flange output planetary gearbox, the output of the previous stage planetary carrier serves as the input for the next stage sun gear. By cascading multiple sets of planetary gear systems, a higher reduction ratio can be achieved.