The key technology of wind power bearing
Date:2011-08-05 5:15:58
1) design and analysis: still experience analog design is given priority to, stress analysis and load spectrum undergraduates-is. One of the difficulties in the spindle bearing technology is required to thirteen * 104 running without h above, have more than 95% of the reliability; According to the high gear box bearing damage rate high load capacity design, etc.
2) material: from different parts of the bearing using different material and heat treatment, such as improving the yaw and change in 40 CrMo OARS bearing steel low temperature (40 ℃ temperature environment ∽-30 ℃, bearing in 20 ℃ temperature-or so) impact energy mechanical properties such as heat treatment method, the surface of the induction hardening hardened layer depth, surface hardness and soft with width and surface crack control; Speed-up machine with foreign STF bearing is equivalent to the development of the steel, HTF and control its austenite best content of research; Spindle bearing in domestic vacuum deairing with steel quality, there is a certain gap between, use electric slag remelting carburizing steels ZG20Cr2Ni4A manufacture and so on.
3) anti-corrosion and seal.
4) and change the OARS yaw bearing clearance special requirements.
5) yaw and change the way OARS bearing roll grinding.
6) spindle bearing and the transmission of bearing high precision processing.
7) transmission bearing design improvement in a frame.
8) test, etc.
