100 t steelmaking converter trunnion bearing wear cause analysis, and the online repair method

100 t steelmaking converter trunnion bearing wear cause analysis and repair methods 2019 - online 10 - 16 100 t steelmaking converter are titled semi mounted drive structure, trunnion 900 mm diameter, bearing a double LieDiao heart roller bearings, drive side for fixed, the other end to side of swimming. Trunnion bearing removal and replacement is difficult, you need to converter jacking to certain height, and also need to remove the tilting reducer drive side. , steelmaking converter trunnion wear reason of steel-making converter trunnion bearing the reasons for wear more, after analysis mainly include the following: one is affected by force, the converter trunnion bearing assembly is an important part of converter tilting, supporting the including furnace, liquid metal, steel slag, the entire weight of the bracket circle and its accessories, as well as the weight of suspension reducer. When feeling half suspension mechanism from attack force torque balance device, but also including front scraping scraping the slag, slag when feeding the ladle and the impact of the hopper. Motor through reducer drive bracket circle of converter and 360 & deg; Rotation to complete within the iron, steel, etc, its work environment under high temperature and overloading operation is frequent, bearing parts in the local work. Second, bearing lubrication factor, the converter trunnion in radiative zone of high temperature lubricating grease replacement not lose lubrication effect, combined with the production of converter dust big, after the replacement of bearing is difficult to guarantee the cleanliness of bearing, bearing friction increases, cause a bite the wear of the bearing structure, ball or bracket will be burst fracture on inner and outer rolling bead lateral movement. 3 it is seal damage, converter trunnion seal generally adopts spherical sealing structure, and between the spherical seal cover and spherical compression ring boundary markers packing seal. Once the packing seal failure, when the converter tilting with ash into the bearing internal, destroy the cage, damage to the bearings. Based on the analysis of the above, bearing damage is the main cause of trunnion wear, as long as the regular inspection and specification of repair and maintenance can greatly avoid sudden release of the problem. 2, sauvy technology in the 100 t steelmaking converter trunnion repair applications sauvy engineers in converter maintenance meeting site engineers use AR intelligent system even clues ray remote operations command center consultation question sauvy technical engineers to use remote AR visual system, will the steelmaking converter trunnion wear problems and the operating environment and sauvy remote operations command center to form real-time docking, let sauvy operations command center for real-time control of maintenance schedule, and according to the field of sudden issue guidance advice, to ensure that the entire repair steps rigour. In addition, at the end of the maintenance sauvy technical engineers will help enterprises to establish a qr code maintenance records, namely sauvy equipment maintenance traceability system. It is' sauvy large database is an important part of, just a simple qr code, immediately implement the underlying important data acquisition and maintenance of equipment information for file management, daily tally, equipment problems of early warning work, such as equipment designed work scan qr code by mobile phones, rapid maintenance information query, immediately record daily check data and equipment information, anytime, anywhere to obtain equipment health status information and control equipment, make the management more efficient. Three, sauvy engineer field repair of the 100 t steelmaking converter trunnion steps ( 1) Prepare the new plane fraction bearing; （ 2) According to the trunnion drawing size processing corresponding positioning model feet; （ 3) Demolition of ear shaft parts show fix position; （ 4) The trunnion jacking up 300 - 400 mm spacing to facilitate personnel operations; （ 5) Template rule is used to determine the repair parts of the coaxial degree; （ 6) Test and bearing inner ring, until meet the assembly requirements; （ 7) Surface baked oil treatment to remove surface dust sundry; （ 8) Repair surface grinder grinding processing, remove the oxide layer, bared metal color; （ 9) Bearing inner ring brush SD7000 release agent; （ 10) Sauvy carbon nano polymer SD7101H material dosage, and mixed uniformly; （ 11) Will SD7101H material evenly to the axis of the surface of the repair; （ 12) Install the bearing inner ring, as for the loading position; （ 13) Material after curing, demolition of bearing inner ring and remove excess material; （ 14) Back up and tighten bearing as required.