In the operation of wind power bearing roller bearings in general bear only part of the load at the same time, and the area where this part of the roller bearing area we call the bearing. The bearing load size, the size will be running clearance for bearing zone impact. If the bearing area is too small, the roller in the actual operation is prone to slippage. For wind power gear box, if the spindle is designed with double bearing support program, then theoretically only torque is transmitted to the gearbox. In this case, through simple mechanical analysis, we find that the planet carrier supporting the bearing load is relatively small, so the bearing area of the bearing often relatively small, roller prone to slippage. In the wind turbine gearbox design carrier support bearings generally use two single row tapered roller bearings or cylindrical bearings two full programs.
Bearing is the other parts on the shaft will produce relative motion, used to reduce friction coefficient during power transmission and keep the machine shaft center fixed position, its main function is to support the rotary body, in order to reduce the equipment in the transmission process of mechanical load friction coefficient. According to the motion of the frictional properties of different components, bearings can be divided into two types of rolling bearings and sliding bearings.
2015年11月27日星期五
2015年11月23日星期一
wheel bearing
Traditional automotive wheel bearing by two sets of tapered roller bearings or ball bearings combination, bearing installation, oiled seals and clearance adjustment is carried out in a car production line. This structure makes it in automobile production plant assembly difficulties, high costs, poor reliability, and maintenance of the car at the service points, also need to be cleaned bearings, oiled and adjusted. Developed on the basis of the wheel bearing unit is the standard angular contact ball bearings and tapered roller bearings on
, It will be two sets of bearings as a whole, with good assembly performance, you can omit clearance adjustment, light weight, compact structure, large load capacity, can be pre-loaded to grease sealed bearings, hub wheel and external seal omitted from maintenance etc., have been widely used in cars, the truck also has a tendency to gradually expand the application.
, It will be two sets of bearings as a whole, with good assembly performance, you can omit clearance adjustment, light weight, compact structure, large load capacity, can be pre-loaded to grease sealed bearings, hub wheel and external seal omitted from maintenance etc., have been widely used in cars, the truck also has a tendency to gradually expand the application.
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