How does a planetary gearbox work?

A planetary gear set is comprised of an outer gear ring that’s called the ring gear. As they rotate inside of the ring gear, the planetary gears create pitch circles that can be formed into a gear train that, in turn, is hooked up to input and output shafts.

What is a planetary gearbox used for?

Generally, planetary gears are used as speed reducers. They are used to slow down motors and increase the torque. Torque is the working power of the machine.

What is meant by planetary gearbox?

A planetary gearbox is a gearbox with the input shaft and the output shaft aligned. A planetary gearbox is used to transfer the largest torque in the most compact form (known as torque density). Each planet gear system has a reduction state, a direct coupling and an acceleration mode.

What are the main three components of planetary gearbox?

Each planetary gear train only contains three basic links: the sun gear, the carrier gear, and the ring gear (the planet gear is not considered in this graph model).

How do planetary gears increase torque?

A planetary gearhead takes a high-speed, low-torque input, say from an electric motor, then increases torque and reduces speed at the output by the gearhead ratio. This lets motors run at higher, more-efficient rpms in equipment that operates at low speeds.

What is difference between transmission and gearbox?

We know the gearbox is located at the rear of the transmission, which is a system of gears inside itself that transmits the engine power generated to the wheels and makes a car move. The transmission is the middleman, and gearbox is the transmission’s sidekick.

When should I use planetary gears?

Planetary gears are often used when space and weight are an issue, but a large amount of speed reduction and torque are needed. This requirement applies to a variety of industries, including tractors and construction equipment where a large amount of torque is needed to drive the wheels.

What are the three components of planetary gear and its function?

At Lancereal, we offer three different types of planetary gearbox, a wheel drive, shaft output and spindle output. Here’s what they are and how they work.

Is a 4.10 gear ratio good?

FACT: A 4.10 axle ratio is ideal for towing heavy loads in a mix of city and highway driving and when towing on varied or steep grades. A 4.10 axle ratio will provide improved acceleration in stop and go city traffic.

How does a wheel drive planetary gearbox work?

In a wheel drive planetary gearbox, the sun gear drives the surrounding planetary gears which are fixed to a carrier. When the sun gear is driven, the planet gears rotate the outer ring gear. The wheels can be mounted over the housing of the gearbox. By mounting the wheel directly to the gearbox, the size of the assembly can be minimised.

How are idler gears connected to a planetary gear?

In principle, the present gearbox already forms the pre-stage of a planetary gear. The last step consists only of mounting the idler gears on a so-called carrier. The carrier itself is connected to a shaft and is guided coaxially through the output shaft, which is designed as a hollow shaft.

What are the parts of the planetary gear system?

This system consists of four main parts including the sun gear, planet gear, ring gear and carrier As soon as the ring gear is stationary, the sun gear comes in the rotational motion. At point A, the planet gear should have spin speed and point B the speed will be zero as the ring gear is stationary.

How does a stationary gearbox in a car work?

Stationary gearbox. So-called stationary gearboxes are characterised by the fact that the gear wheels have stationary axes of rotation. The figure below shows a 2-stage stationary transmission with three gears. An input gear drives an output gear by an idler gear (intermediate gear).