The fan bearing wear repair procedures and measures

The fan running accuracy of bearing parts in the process of running high, at the same time, the impeller dynamic balance calibration is very critical. Due to the use of harsh, in the process of long-term operation, smooth system once the present problems of bearing will incur fans present serious impact on consumption. Enterprise consumer line after a period of high temperature centrifugal fan support side bearing jammed with shaft sintering to form the inner ring, for bearing a serious wear and tear. Fan bearing wear a repair steps: 1, the scene view detailed wear condition, burning on the shaft bearing inner ring is not complete resection clean, rear axle shoulder appearance lubrication with micrometer to measure the detailed sizes can be used as a locating datum. 2, first turn on the shaft neck treatment of clean, burn clean the shaft bearing inner ring of the liquidation. Using acetylene flame journal with polishing machine grinding shaft neck after baking oil, empty try repair tooling. 3, strict according to the proportion reconcile sauvy SD7101H data, and coating to the bearing wear appearance. 4, clamp tooling and iodine tungsten lamp heating treatment, accelerate the curing speed. 5, remove the tooling inside there is a missing after fulfilling the central, remove redundant data discharge groove after measurement after repair of shaft neck size & # 216; 120 and 0. 1 mm or so, with sand paper to the journal stopped after burnish disposal with anhydrous ethanol to stop cleaning. 6, heating oil bearing, secondary harmonic SD7101H data in repair materials apply a layer of thin at the same time the first didn't fill the void of infill. 7, bearing heated to 120 ° C, circle after demoulding agent directly stop assembly. 8, bearing assembly in place, the enterprise debugging to complete the request. Pay attention to matters: repair tooling order needs strict according to sauvy engineer measurement data specification stop custom. Fan bearing a wear three repair plan: 1. The depth of the brush plating, as a result of wear and tear has up to 3 mm, beyond the range of brush plating to repair, so do not apply. 2. Laser cladding technology, equipment, price, and the defect of cladding is the strength of the plating layer is lower than the strength of the metal, and the use of this fan is temperature above 80 ℃, the method is not applicable. 3. Sauvy carbon nano polymer materials, the materials is a kind of high temperature resistance, strong corrosion resistance and after curing can stop machining metal repair, maintenance, composite material, this material has a good bonding power and mechanical performance, not only itself after curing strength and hardness as metal, also has the concession, can absorb the impact of vibration equipment, can meet the equipment in operation request of various kinds of compound together.