Popularity丨What is a wind power gearbox?

2024,09,13

With the development of wind power technology, the stand-alone capacity of wind turbines is increasing, which requires that the supporting wind turbine and generator power also needs to be increased, the wind power gear box came into being.

Gearboxes are important transmission components in wind turbines, and this article provides a detailed explanation of the classification, structure, production process, and operating characteristics of wind power gearboxes.

The wind turbine gearbox is one of the key components in the wind power generation equipment, which is used to transfer the kinetic energy of the wind turbine rotation to the generator, so as to produce electrical energy. It usually consists of a number of gears, which are used to increase the rotational speed of the wind turbine through precise transmission ratios and convert it into a rotational speed suitable for generator operation. Usually the rotational speed of the wind turbine is very low, far less than the required speed of the generator power generation, must be realized through the gear box gears to increase the speed of the role, so the gear box is also called the speed box.

Therefore, the design and manufacture of the gear box is quite critical. At the same time, the wind turbine gear box due to its use of the limitations of the conditions, the requirements of small size, light weight, excellent performance, reliable operation, low failure rate. Most of the gearboxes on the most used double-fed models are planetary wheel system + parallel shaft drive.

Wind turbine gearboxes are gearboxes specially applied in the field of wind power generation, the main role is to convert the high torque and low rotational speed of the wind turbine impeller into the low torque and high rotational speed of the wind turbine generator side, in order to adapt to the generator's operating requirements, and the gearbox will also offset the impeller side of the various directions of the complex load, so that only the torque is transferred to the generator.

According to the overall arrangement of the unit requirements, sometimes directly connected with the wind turbine hub drive shaft (commonly known as the big shaft) and the gear box into one, but also the big shaft and gear box are arranged separately, the use of the expansion sleeve device or coupling connection structure. In order to increase the braking capacity of the unit, often set up at the input or output end of the gear box brake, with the tip brake (fixed pitch wind turbine) or variable pitch braking device together on the unit drive system for joint braking.

Author:

Ms. Davina

E-mail:

davina@bochequipment.com

Phone/WhatsApp:

+852 59360273