Gearboxes have a wide range of applications, such as in wind turbines. Gearboxes are 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.
Generally, the rotation speed of the wind wheel is very low, far less than the rotation speed required by the generator to generate electricity. It must be realized through the speed increasing effect of the gear pair of the gear box, so the gear box is also called the speed increasing box.
Introduction
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 force and torque, prevent deformation and ensure the transmission quality. The design of the gear box body 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 continuous 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 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 gears and helical gears of the reducer are all carburized and quenched with high-quality alloy steel. The tooth surface hardness is as high as 60±2HRC, and the tooth surface grinding accuracy is as high as 5-6.
The bearings of the transmission parts are all domestic well-known brand bearings or imported bearings, and the seals are skeleton oil seals; the structure of the suction box, the larger surface area of the cabinet and the large fan; reduce the temperature rise and noise of the whole machine, and improve the reliability of operation , The transmission power increases. It can realize parallel shaft, right-angle shaft, vertical and horizontal general box. The input methods include motor flange and shaft input; the output shaft can be output at right angles or horizontally, and solid shaft and hollow shaft, flange-type output shaft are available. . To make the gear box meet the installation requirements of the narrow space, it can also be supplied according to customer needs. Its volume is 1/2 smaller than that of a soft-tooth gearbox, its weight is reduced by half, its service life is increased by 3 to 4 times, and its carrying capacity is increased by 8 to 10 times. Widely used in printing and packaging machinery, three-dimensional garage equipment, environmental protection machinery, conveying equipment, chemical equipment, metallurgical mining equipment, iron and steel power equipment, mixing equipment, road construction machinery, sugar industry, wind power generation, escalator and elevator drives, shipbuilding, light High-power, high-speed ratio, high-torque occasions such as industrial field, papermaking field, metallurgical industry, sewage treatment, building materials industry, lifting machinery, conveyor line, assembly line, etc.
effect
The gearbox has the following functions:
1. Accelerate and decelerate, which is often referred to as a variable speed gearbox.
2. Change the transmission direction. For example, we can use two sector gears to transmit the force vertically to the other rotating shaft.
3. Change the rotating torque. Under the same power condition, the faster the gear rotates, the smaller the torque on the shaft, and vice versa.
4. Clutch function: We can separate the engine from the load by separating the two originally meshed gears. Such as brake clutches and so on.
5. Distribution of 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.