Wind speed gearbox input shaft is generally 10-20 rev / min, due to the relatively low speed, causing the input shaft bearing is the planet carrier support bearing oil film formation is often more difficult. The role of bearing measurement bearing operation at the time of separating the two metal contact surfaces, avoid direct metal to metal contact occurs. We can introduce a parameter λ to characterize the bearing lubrication (λ is defined as the film thickness and roughness of the two contact surfaces and the ratio).
Wind turbine bearing production process:
1, to control the forging temperature, not coarse grains;
2, to control the modulation quality process to ensure that quenched their core part of the organization to ensure its mechanical properties;
3, IF quenching surface hardened layer depth control;
4, to avoid surface micro-cracks.
回复删除Nice! To ensure optimal bearing performance, slewing bearing should always be stored flat, indoors, in low humidity and in original packaging.