Bearing diagnosis techniques of gearbox

Gear box running state is often directly affects the transmission device can work normally. Gear box usually contains a gear, rolling bearing and shaft parts. According to statistics, the gear box parts failure cases, gear and bearing failure accounted for the largest, 60% and 19%, respectively. Therefore, the focus in the study of gearbox fault diagnosis is gear and bearing failure mechanism and diagnosis method. As the fault diagnosis of rolling bearings in the gear box, it has a certain skill and particularity, the author according to field experience, from the vibration diagnosis method to fault diagnosis of rolling bearings in the gear box related discussion. Gear box bearing chamber wear on-site maintenance steps ( 1) Overhauling the gearbox parts, confirm the bearing chamber wear state and wear volume; （ 2) Roasted with oxygen acetylene flame bearing chamber for oil processing; （ 3) In the polishing machine polishing treatment to repair the bearing chamber; （ 4) With anhydrous ethanol was carried out on the polishing of the surface of the bearing chamber cleaning; （ 5) In proportion to reconcile sauvy SD7104 carbon nano polymer materials; （ 6) In the repair parts coated sauvy SD7104 carbon nano polymer materials; （ 7) With blade feet along the datum blade coating sauvy carbon nano polymer molding; ( 8) Sauvy carbon nano polymer materials with iodine tungsten lamp SD7104 heated after curing; ( 9) Using the new bearing bearing chamber of repair grinding show points and remove high; ( 10) In the bearing interior surface secondary daub SD7104 sauvy carbon nano polymer materials; ( 11) In the bearing outer ring daub sauvy SD7000 carbon nano polymer materials; ( 12) Back pack each gear shaft parts, gear box body; ( 13) Switched on. Gear box has its particularity in production process, the two output shaft in synchronous rotating in the opposite direction, the impact of the production process of roll pass to force and torque are quite big, such a case the bearing chamber on the extrusion pressure is big, easy to form the shape of the eccentric wear. Sauvy industrial maintenance technology is the use of carbon nanotubes unique mechanical properties of polymer materials and corresponding repair process online repair, including various types of reducer, or large axle shaft hole of the wear and tear.