The advantages and disadvantages of the gearbox of the gearbox motor

The gearbox is an important mechanical component that is widely used in wind turbines. Its main function is to transmit the power generated by the wind wheel under the action of the wind to the generator and make it get the corresponding speed. The gear box bears the force from the wind wheel and the reaction force generated during gear transmission, and must have sufficient rigidity to withstand the action of force and torque, prevent deformation and ensure transmission quality. The design of the gearbox housing should be carried out in accordance with the requirements of the wind turbine power transmission layout, processing and assembly conditions, and ease of inspection and maintenance. With the rapid development of the gearbox industry, more and more industries and different companies have used gearboxes, and more and more companies have developed and grown in the gearbox industry.

       The advantage of variable frequency speed regulation is that it can realize a wide range of stepless speed regulation, and it can be any speed within the range, and the motor does not need to stop when changing the speed. The price of the inverter is not very high now. But there are also shortcomings. The reliability of electronic products is much worse than that of mechanical products, and even normal operation is prone to problems. And there is another problem that when adjusting the speed, the speed adjustment at the rated speed is a constant torque speed adjustment process, that is to say, the speed goes down, but the torque does not change, that is, the output power of the motor becomes smaller.

       Due to the limitation of gear strength, when the total transmission is large, the gear motor may not be able to withstand the locked-rotor torque, and the load torque at this time cannot exceed the maximum allowable short-time load torque. The gear box is composed of multi-stage gear pairs. Each stage includes a pair of gear pairs meshing with each other consisting of a chip gear and a pinion gear. The first pinion is mounted on the output shaft of the motor. The bearing used in the output shaft of the gearbox is usually an oil bearing made of copper or iron sintered.