Gears for acricultural machinery: which direction is the market taking?

agosto 26, 2021

Lately, we hear a lot about the future of agricultural machinery gears and the direction in which the market is heading. From the end of 2020, the recovery scenario is clear. According to Machinery world estimations, in the first half of '21 the regions of Southern Italy bought many agricultural machinery, while the North with Lombardy and Emilia Romagna are confirmed as the major producers of components, assemblies and spare parts for agriculture. In light of this and the new sustainability policies implemented by the European Union to tackle climate change and reduce its consequences, it seems that this is a very favorable sector for those who produce components for agricultural machinery. Talking about sustainability also implies addressing the issue of creating prototypes of mechanical transmissions and gears for new products. To innovate it is necessary to have sufficient production and technological flexibility. In G.S.I. we believe that carrying out projects based on the drawing of the client partner is the prerogative necessary to be able to develop the mechanical sector with a view to sustainability.

Planetary gears for agricultural machinery

As we have argued many times, gears will always be needed to create movement. In fact, despite the trend is going in the direction of electrification of the motor, the control of the wheels of the agricultural machine will still be managed by a planetary or epicyclic gearbox. The planetary gear is a mechanical organ that allows you to alter the speed ratios between the input shaft and the output shaft. It is a train of perfectly matching gears, which rotating together generate movement.

Distinctive features and advantages of planetary gearing

As standard, the planetary transmission is developed in an internally toothed ring that houses a sun gear and satellites, which are sustained by a planetary carrier. One of the main features of forming a planetary gearbox is that at least one of the elements has a moving axis. If all the elements are free to rotate, it would be created a planetary differential. A planetary gearbox can consist of various stages of assembled gears. Each level generates a reduction in speed transmitted to the wheels. In the case of the wheeled or tracked agricultural machine, this epicyclic system is used to reduce the transmission power of the engine at the service of the machinery. Another very important element is the possibility of transmitting large powers with a relatively small size. With the same number of teeth between pinions and ring, the reduction ratio is higher than in a traditional gearbox, this allows the improvement of the performance and cost of the product. Finally, the planetary gear is reversible, which means that it can become a planetary multiplier and thus increase the power transmission speed of the motor with even very high ratio values. By its nature, this kinematics is perfectly balanced in its internal forces that cancel each other out. This allows the load values to be distributed in all directions.

How many types of planetary gears are there?

There are different types of planetary gears and it all depends on the number of rotating and fixed components, but also on the amount of levels present and the structure of the assembly. Let's start by talking about the multistage planetary gear which is nothing more than multiple gears in series with a planetary carrier that unites them. In this case the incoming motion is on the train carrier, connected to the drive shaft, while the outgoing one is used by the shaft connected to the satellite. To conclude, it is possible to find these elements assembled in a harmonic reducer. The parts of which are all perfectly inserted into each other and mesh, generating a reduction in power. Visually it is difficult to define the family to which it belongs, in fact, externally it has an inside toothed ring which is inserted an elastic wheel with a less teeth than the previous one. As a third element there is a cam that acts as a train carrier and allows the rotation of the two previous elements. To reduce the friction of the movement, a bearing is inserted in the outermost area.

In light of all these considerations, we believe that finding a supplier partner who can add value to the project by supporting its development independently from a technical point of view is essential. G.S.I. is constantly looking for partners to develop new projects and who always pose new challenges. We strongly believe in the agricultural sector and in its sustainable development, which is why we are open to the production of customized spare parts and prototypes for planetary gears for agricultural machinery.

If you are interested, please contact us, our sales department is replying you as soon as possible.

Gears for acricultural machinery: which direction is the market taking?

Planetary gears for agricultural machinery

Distinctive features and advantages of planetary gearing

How many types of planetary gears are there?

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