Gear Box


Gearbox has a wide range of applications, such as the application in wind turbine. Gearbox is an important mechanical component widely used in wind turbine. Its main function is to transfer the power generated by the wind wheel under the action of wind to the generator and make it get the corresponding speed.

Usually, the speed of the wind wheel is very low, which is far from the speed required by the generator. It must be realized through the speed increasing effect of the gear pair of the gearbox, so the gearbox is also called the speed increasing box.

Gear design

Gear design. Improper parameter selection, too small overlap, improper or no profile modification, unreasonable gearbox structure, etc.

Gear Design

Gear train and gearbox

 Assembly eccentricity, low contact accuracy, poor parallelism of shaft, insufficient stiffness of shaft, bearing and support, low rotation accuracy and improper clearance of bearing, etc.

Gear Train

In gear processing

the pitch error and tooth profile error are too large, the backlash is too large, and the surface roughness is too large.

Other aspects

Input torque from other aspects. Fluctuation of load torque, torsional vibration of shafting, balance of motor and other transmission pairs, etc.


About gearbox

Gearbox design

When the gearbox bears the force from the wind wheel and the reaction force produced by the gear transmission, it must have enough rigidity to bear the force and torque, prevent deformation and ensure the transmission quality. The design of gear box should be carried out according to the layout arrangement, processing and assembly conditions, easy inspection and maintenance of wind turbine power transmission. With the rapid development of the gearbox industry, more and more industries and different enterprises have applied to the gearbox, and more and more enterprises have grown in the gearbox industry.

Design Principle

According to the modular design principle of the unit structure, the gearbox greatly reduces the types of parts, and is suitable for large-scale production and flexible selection. The spiral bevel gear and helical gear of the reducer are carburized and quenched with high quality alloy steel. The hardness of the tooth surface is as high as 60 ± 2hrc, and the grinding accuracy of the tooth surface is as high as Grade 5-6.

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Ever-Power Group Co., Ltd. specializes in manufacturing various mechanical and hydraulic drives, such as planetary gearbox, creeping reducer, in-line helical gear reducer, parallel shaft spiral gear reducer, helical gear reducer, agricultural gearbox, traction gearbox, automatic gearbox, PTO drive shaft, special reducer and related gear assembly and other related products, sprockets, hydraulic system, true Air pump, fluid coupling, gearbox, chain, chain pulley, hydraulic cylinder, gear pump, screw air compressor, journal low back clearance creeping reducer, etc. In addition, we can produce customized gearbox, gear motor, motor and other hydraulic products according to the customer’s drawings.


1. Accelerate and decelerate,

2. Change the direction of transmission,

3. Change the rotational torque.

4. Clutch function: we can separate the engine from the load by separating the two original meshing gears. Such as brake, clutch, etc.

5. Distribute power.


1. Acceleration and deceleration, which is commonly known as the gearbox
2. Change the transmission direction. For example, we can use two sector gears to transfer the force vertically to another shaft
3. Change the rotation torque. Under the same power condition, the faster the speed of the gear, the smaller the torque on the shaft, and vice versa
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.

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