KG’s Planetary Gearbox is widely used in many applications.

The planetary gearbox comprises planet gears, sun gears and carriers. The main parts of a typical planetary gearbox are the planet shaft, sun shaft, ring gear and planet carrier. The characteristics of a planetary gearbox are that it contains multiple planet gears with different diameters connected to the same sun gear.

The choice of the correct drive can facilitate the machine’s work to make high-speed manual operation and reduce the working effort. What kind of types of planetary gearboxes are there?

According to the working principle, the planetary gearbox can be divided into three types: single-stage single-axis planetary gearboxes, single-stage double-axis planetary planetary gearboxes, and dual-stage double-axis planetary gearboxes. The working principle is as follows: Single-stage, single-axis planetary gearboxes are widely used in the industry, such as in the cane sugar plants in Brazil.

The working principle of a single-stage single-axis planetary gearbox is as follows: the sun shaft and the ring gear are fixed, and the planet carrier drives the planet gears to rotate around the sun shaft. The output speed is determined by the number of teeth of the sun gear and ring gear. The higher the number of teeth, the slower the output speed. Single-stage double-axis planetary gearboxes are composed of two sets of planet gears with different diameters.

The inner set of planets drives the outer set of planet gears to rotate around the sun shaft. The ring gear also drives the internal set of planet gears to turn so that two sets achieve synchronization while rotating at different speeds. This kind of transmission is generally used in Hoisting Machinery. The double-stage double-axis planetary gearbox consists of two sets of planet shafts placed side by side in parallel.

Each planet shaft has a bunch of planet gears meshed with both the ring gear and a sun gear on an adjacent planet shaft so that three shafts are located on one plane, passing through the center point of the main bearing.