Rotor shaft bearing

The same with spindle bearing ,wind power bearing must also carrying such a load torque and speed changes. In light load to the load area suddenly when the wind blows heavy load range wide in operation, is a major feature of fan bearing.

Rotor shaft bearing, often bear the load changes, and repeated irregular starting, acceleration, deceleration, stop.

In addition to rotor shaft bearing, the use of the site, especially for studying on the best technology condition of various conditions of  minimum load, the average load and maximum load, bearing type, bearing clearance,bearing roller number, convexity processing, holder of bearing ,which is very important.

Schematic diagram of fan generator room

In the rotor shaft bearings , slewing gear box (growth machine), generator, yaw gear box (reducer), and yaw rotation seat, blade pitch moment rotation seat, hydraulic pumps and so on, many sites all use wind power bearing.

The instability of the use environment，wind power bearing

Rotor shaft bearings , supporting the blade and rotor,  transmitted the rotating torque to the growth machine. Because the wind often change, the load and torque acting on the spindle bearing have great changes.

  Below the starting wind speed (for minimum wind speed power required) , the main shaft of the rotor is in idle state, at low speed and light load operation, but when above the starting wind speed, the rated revolution power state, rise, also reached the average load. Especially when the wind power bearing suddenly blows , through the blade, rotor, spindle bearing can bear great load.

The wind power

The world wind power bearing generating capacity by the end of 2002, about 31000MW, a 27% increase over the previous year. The wind power generation is no carbon dioxide emissions and clean energy minimum influence on the environment,with  the rapid popularization in the world  in recent years.

  In the field of wind power,wheel bearing improve equipment reliability and reduce the cost of power generation to improve its economy is the main subject. An important component of bearing support of wind power generator, to fully consider the use of the environment, need to the best design of high reliability and high economy coexist.

wheel bearing

The main function of deck crane bearing is to provide accurate guidance for the wheel hub bearing and rotating, it not only bear the axial load but also bear radial load,which is a very important component .

  The wheel of the car with the traditional thin section bearing is composed of two sets of tapered roller bearing and ball bearing assembly, bearing installation, greased, sealed and clearance adjustment is carried out in the automobile production line. This structure makes it difficult in assembly, automobile production plants of high cost, poor reliability, and vehicle repair points in the maintenance, also need cleaning, oiling and adjustment of the bearing.

  wheel bearing unit is developed in the standard angular contact ball bearings and tapered roller bearings on the up, it will be two sets of bearings are made into a whole, has good assembly performance, can omit clearance adjustment, light weight, compact structure, large load capacity, to advance into the seal bearing grease, ellipsis and external hub seal free from repair and other advantages, has been widely used in cars, in a truck is also gradually expand the application trend.

wind power bearing

The world wind power bearing generating capacity by the end of 2002, about 31000MW, a 27% increase over the previous year. The wind power generation is no carbon dioxide emissions and clean energyminimum influence on the environment, in recent years deck crane bearing the rapid popularization in the world.

   In the field of wind power, improve equipment reliability and reduce the cost of power generation to improve its economy is the main subject. An important component of support bearing of wind generator, fully consider the environment, need to the best design of high reliability and high economy coexist.

Thin-walled deep groove ball bearings which should have specific advantages in industrial use

Thin-walled deep groove ball bearings use roller made of special polymer materials, has the advantages of light weight, small rotational inertia characteristics. Thin-walled deep groove ball bearings installed below the receive segments in conveyor, conveyor belt material to reduce the impact of falling material. Because of the smaller friction between the bearing thin-walled deep groove ball and ring, so better able to extend the service life of conveyor belt. Here we describe specific protective effect of thin-walled deep groove ball bearing play:

(1) the temperature protection of linear plain bearings‍ thin

Belt conveyor roller and bearing friction causes the temperature exceeds the limit, the detection device is installed close to the drum emit ultra-high temperature signal, the receiver receives the signal, the 3S delay, make the execution part action to cut off the motor power supply, automatic stop running conveyor thin-walled deep groove ball bearings, plays the temperature protection function.

(2) speed protection of deep groove ball bearing thin

When the conveyor agricultural bearings‍ failure occurred in the process of operation, installation is SG accident sensor on the motivation of magnetic switch can not be closed or not according to the normal speed closed on the conveyor, the control system will be the inverse time characteristics after a certain delay, speed protection circuit works, make the implementation of part of the action, cut off slewing bearing manufacturer‍ motor power supply, to avoid accident expansion.‍