The main function and rapid development of gearbox
The gearbox can withstand the force from the wind wheel and the reaction force generated by the gear transmission during operation. To a certain extent, it must have sufficient rigidity to withstand the force and torque, so as to prevent deformation and effectively The transmission quality and the design of the gearbox casing should be carried out in accordance with the requirements of the layout arrangement of the wind turbine power transmission, the processing and assembly conditions, and the ease of inspection and maintenance.
Now with the rapid development of its gearbox industry, more and more industries and different companies will use gearboxes, and more and more companies are developing and growing in the gearbox industry. The gearbox is based on the modular design principle of the unit structure, which greatly reduces the types of parts and is suitable for mass production and flexible selection. The spiral bevel gear and helical gear of the reducer are all made of high-quality alloy steel carburizing and quenching, the tooth surface hardness is as high as 60±2HRC, and the tooth surface grinding accuracy is as high as 5-6 grades.
The main function of the gearbox:
1. Acceleration and deceleration, which is often referred to as a gear box.
2. Change the transmission direction, for example, we can use two sector gears to transmit the force vertically to another rotating shaft.
3. Change the rotational torque. Under the same power conditions, the faster the speed of the gear rotates, the smaller the torque on the shaft, and vice versa.
4. Clutch function: We can achieve the purpose of separating the engine from the load by separating the two originally meshed gears. such as brakes, etc.
5. Distribute power. For example, we can use one engine to drive multiple slave shafts through the main shaft of the gearbox, so as to realize the function of one engine driving multiple loads.
The lubrication system of the gearbox is of great significance to the normal operation of the gearbox. The large-scale wind power gearbox must be equipped with a reliable forced lubrication system to lubricate the gear meshing area and bearings. Insufficient lubrication accounts for more than half of the reasons for gearbox failure. Lubricant temperature is related to component fatigue and the life of the entire system. - Generally speaking, the oil temperature of the gearbox should not exceed 80 °C during normal operation, and the temperature difference between different bearings should not exceed 15 °C. When the oil temperature is higher than 65℃, the cooling system starts to work; when the oil temperature is lower than 10℃, the lubricating oil should be heated to the predetermined temperature before starting.
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