The fan bearing wear - bearing knowledge at the site

Cement industry tail exhaust fan is finished product dust collecting fan, general power is larger, flow, speed is higher, the fan in the running process of the operation of the bearing parts precision demand is higher, at the same time, the impeller dynamic balance calibration is very critical. Due to the using conditions, long running process, the bearing lubrication system once the failure will lead to severe impact fan production.     Fan bearing wear of the main reasons: & emsp;   1) Bearing the lack of lubrication, caused by working temperature is higher, bearing damage and wear bearing;     2) Size tolerance, caused by bearing and bearing clearance between relative motion and the wear and tear;     3) Bearing axial channeling, bearing gland not pressure or bearing a size too big cause bearing can't locate, fan operation cause the axial channeling and wear and tear.     Traditional repair process & emsp;   For bearing wear, traditional online technology to repair scheme has the following categories: ( 1) With non-standard sets ( 2) Pitting, direct bearing assembly ( 3) Replace & emsp;   Low set non-standard sets & emsp;   Mosaic of non-standard sets, must logoff machining processing, make it difficult to implement for fan and other important equipment downtime of production for a long time to repair, enterprises generally do not adopt this technology.     Low scutching point & emsp;   Scutching point repair technology is a kind of emergency measures, and is limited to wear very mild, after repair of the bearing inner ring and shaft fit only for contacts, so in the operation process under the condition of large load, pitting susceptible to fatigue wear and short service life, is only a temporary emergency.     Low replacement & emsp;   Replace the new parts is one of the most simple processing method, its characteristic is to small devices or components is relatively simple measures, but for large equipment, remove the equipment complex, high cost and generally difficult to implement and parts purchasing cycle is long, continuous production is difficult to wait.     Therefore, bearing wear occurs, how to repair process become a big problem, now, a new technology, sauvy carbon nano polymer technology, is arises at the historic moment, just to solve the process repair on this board.     The fan speed: 960 r/min. Power: 710 kw; Bearing diameter: & Oslash; 120mm； Bearing model: 22224; Bearing a 58 mm width, the wear depth: 1 ~ 2 mm or so.     Sauvy industrial carbon nano polymer materials field repair the fan bearing a wear & emsp;   Sauvy industrial carbon nanometer polymer repair technology is the use of carbon nanotubes unique mechanical properties of polymer materials and the corresponding repair process online repair including roller press, roller mill, blower, hoist, motor, reducer and other large axial of wear and tear.     Repair process is simple: use the sauvy tooling repair process of wear surface processing in the first place, then put the carbon applied directly to a specific part of the wear and tear of polymer materials, complete the repair with repair tooling material molding and curing after heating. Repair material size to the bearing design size, satisfies the requirement of fan operation in cooperation with this part.