Long Life Roller Yaw Bearing for Wind Turbine

Long Life Roller Yaw Bearing for wind turbine

Bearing is the joint of mechanical equipment, and wind power bearing is one of the components used to connect the yaw, transmission and other systems in the unit. Generally, it can be divided into three types: main shaft bearing (1-3 sets), yaw bearing (1 set) and pitch bearing (3 sets).

Among them, the main shaft bearing is used to support the main shaft as the name implies, and its theoretical life can be up to 20 years (but the bearing often has lubrication problems). The yaw bearing is used to connect the engine room and tower drum, which can track the change of wind direction and improve the power generation efficiency. The pitch bearing connects the blade and the hub, thus changing the angle of the blade.

LYXQL Long Life Roller Yaw Bearing for wind turbine is also known as the combined slewing bearing. It is a new type of bearing with high load-bearing capacity. It is mainly used in occasions where the load is relatively large, the load-bearing is more complex, and the large tilting moment is required.

LYXQL Long Life Yaw Bearing for Wind turbine bears the axial force and tilting moment in two directions, which is borne by the upper and lower rows of horizontal rollers, and the radial force is borne by the vertically arranged third row of rollers. The bearing capacity of each rolling element has a clear division of labor, and the upper and lower rows of rollers bear 90°, and the bearing capacity of each bearing roller is fully exerted. Therefore, it has a large bearing capacity of axial force, radial force and overturning moment.

The heat treatment state of Long Life Yaw Bearing gear is generally quenched and tempered, and the hardness is 207~262HB. For special requirements, the tooth surface can also be quenched according to the user's requirements. The quenching hardness is HRC55±5, and sufficient depth can be guaranteed. According to different applications, Roller Long Life Yaw Bearing for wind turbine quenching can be divided into full-tooth quenching and single-tooth induction quenching. Single tooth induction hardening can be divided into tooth surface tooth root hardening and tooth surface hardening. The quenching process is divided into: 1. Full tooth quenching 2. Tooth surface root quenching 3. Tooth surface quenching

Anti-corrosion treatment of external surface of Long Life Roller Yaw Bearing for Wind Turbine

For the anti-corrosion requirements of yaw bearing, we adopt the arc spraying long-term anti-corrosion process. It uses special arc spraying equipment to melt, atomize and spray the corrosion resistant metal (pure aluminum or zinc) to the surface of the workpiece to form a metal arc spraying layer, and then seal it with a corrosion resistant coating with strong permeability to form an arc spraying long-term anti-corrosion composite coating. Its technical features are: 1. long anticorrosion life, up to more than 20 years; 2. High adhesion of coating; 3. The coating quality is good. The process route: preparation of semi-finished products of bearing inner and outer rings → pre-cleaning → workpiece pre-protection → sand blasting → arc spraying → sealing treatment.

LYXQL Yaw Bearing for wind turbine- Maintain

1. The slewing bearing should be greased regularly. According to different types of slewing bearings, the specific grease filling time is as follows: the ball type is filled with grease every 100 hours of operation; the roller type is filled with grease every 50 hours of operation.

2. The sundries on the surface of the slewing ring should be removed frequently during use, and the sealing strip of the slewing ring should be checked for aging, cracking, damage or separation. If one of these conditions occurs, the sealing strip should be replaced in time to prevent debris from entering the raceway and the loss of grease.

3. Pay close attention to the operation of the slewing ring during use. If you find that the noise, impact, or power suddenly increases, you should stop the machine immediately for inspection until all the faults are eliminated, and disassemble and inspect if necessary.