IKO bearings in quality analysis of fault judgment

Auto bearing before you will deliver the routine inspection to remove the oil seal packing, and turn it into oil containing 3% no acid washing gasoline or kerosene, rotate the outer ring and bracket will be washed thoroughly, rolling element and the raceway border, the requirements will be any hidden part of residual oil stains thoroughly clean off. IKO bearings should be attached to clean after washing clean oil spray dry, in line with clean neutral lining paper work table to dry, or dry slowly in the far infrared drying oven. Since oil spray dry clean and dry or drying, the process can not turn the car bearing ring, cage or any rolling element. Has to dry or drying auto bearing, should be in accordance with the provisions, drip into the lubricating oil and check for immediate delivery, IKO bearing outer surface at this time no oil film protection, in the whole process of inspection shall not directly touch the skin of hands, the operator should wear clean gloves, or hand coated with anti-rust agent, but the rust inhibitor must avoid hand car with bearing rolling surface, otherwise it will result in deviation of measurement results. Auto bearing in the check has been completed, should be used for immediate delivery or rust inventory processing, also should take to complete the entire inspection process, so as to avoid took too long to cause corrosion. Pay attention to the use of pure gasoline cleaning without oil can also cause corrosion. Auto bearing before the check has exiguity and inspection gauge block, standard parts, and measuring instruments used in the common place in the examination place a piece of metal plate, which can quickly make these objects of homogenization temperature and room temperature. A, the vibration diagnosis technology IKO bearing element surface fatigue spalling, indentation, or the local corrosion, auto bearing will appear in the operation of the periodic pulse signal. The periodic signal can be installed on the bearing seat of sensors ( Type speed or acceleration) To receive, and through the analysis of the vibration signal to diagnose the faults of the bearing. Features: vibration diagnosis technology widely used; Can realize on-line monitoring; Diagnosis, diagnosis theory has been mature. Application: apply is especially suitable for IKO bearing fault in rotating machinery monitoring. Second, the ferrographic diagnosis technology auto bearing wear particles and their working conditions are closely linked. With wear particles in lubricating oil by a strong magnetic field, under the action of strong magnetic field, grinding grain on precipitation in iron spectrum according to certain rules, can be made on the ferrographic microscope ferrographic pieces in qualitative observation and quantitative instrument testing, judge the working condition of bearing. Characteristic: the machine without disintegration; Low investment and good effect; Can find IKO bearing early fatigue failure; Can do wear mechanism research. Application range: applicable to oil lubrication bearing fault diagnosis, with grease lubricated bearings is relatively difficult. Three, good lubrication performance of the oil film resistor diagnostic technique of IKO bearings, due to the effect of oil film, there is a lot of resistance between inner and outer ring. Therefore, by measuring the resistance of the bearing inner and outer ring, bearing abnormal judgment. Features: can use the same criteria for different working conditions. The surface spalling, indentation and crack the diagnosis of abnormal effect is poor. Application range: applicable to the axis of rotation exposed. Four monitoring and diagnosis technology, optical fiber monitoring is a kind of direct bearing ring surface to extract the signal from the car diagnostic technology. Made of optical fiber bundle displacement sensor consists of transmitting fiber bundle and receiving optical fiber bundle. Light fiber bundle sensors end face and the launch IKO gap reflected on the surface of the bearing ring, by the receiving fiber bundle, converted into electric signal by photoelectric component, through the analysis of the electrical signal processing, can be to evaluate bearing condition. Features: high sensitivity optical fiber displacement sensor; Directly from the IKO bearing surface to extract the signal and improve the signal-to-noise ratio; Can directly reflect the manufacturing quality of rolling bearing, the surface abrasion degree, load, lubrication and clearance. Application range: applicable to the sensor can be installed on the bearing seat inside the machine. Five, if produce some abnormal temperature diagnosis technology bearing, IKO bearing temperature changes. Therefore, according to the change of temperature, can for bearing fault diagnosis, but to the anomaly judgment ability is very low. Features: simple diagnosis; For bearing burn judgment effect is better. Application range: applicable to the machine simple routine diagnosis of bearing. Six, acoustic emission diagnosis technology of metal materials due to internal lattice dislocation and grain boundary sliding or due to the occurrence and development of internal crack, all need to release the elastic wave, this phenomenon is called acoustic emission phenomenon. Peeling or crack, rolling bearing cars can produce different types of acoustic emission signal, on the basis of bearing condition assessment. Features: diagnosis of quick, easy; Can online monitoring. Application: in recent years the development of new technology, less in IKO bearing condition monitoring application.