Smooth primary school asked - — Oil film bearing oil

The oil film bearing is the basis of the principle of fluid dynamic pressure smooth, namely by shaft and bearing components of relative motion, with the help of the smooth oil viscosity and oil wedge in the bearing pair clearance of fluid dynamic pressure effect, and constitute the bearing oil film bearing. Typical application: warmwalzwerk roll bearing oil film. Hence the scope change bearing pressure, impact resistance, speed, rolling precision request such as size, structure and use life. According to incomplete statistics, the status quo of the domestic tonier parts of oil film bearing friction losses more than 80% are due to the smooth of the oil film bearing oil or smooth system problems or improper use, particularly with smooth solid particles of pollution in the oil, water and oil of metamorphosis. At present, the domestic scientific research units and user units are trying to improve the oil film bearing seal structure, avoid the water. But the water portion of the oil film bearing, especially of pure rolling mill oil film bearing, because it is a state of dynamic seal, and appear in the process of rolling steel pile accident is easy to form 0 type sealing ring seal performance, it is hard to guard against in the process of consumption. Water into the oil film bearing oil, make certain additives hydrolysis and failure, and may constitute a turbulent, destroyed under the normal operation of the fluid is smooth, provoked abnormal wear and easy corrosion equipment, worsen oil emulsion and waterborne,, oxidation resistance and resistance to bubble. In addition, water and oil oxidation products and sludge generated in use, form colloidal oil group, possible infarction filtering equipment. Cooling water mixed with smooth system, will have serious damage on consumption. Usually smooth system moisture content shall not be higher than 0. 5%, moisture content exceeds bid, will incur smooth oil viscosity is reduced, water and smooth oil antiwear agent, antioxidant role in accelerating the metamorphosis of the oil, root oil degradation process speeds up, oil water performance, etc. Contains free water and acids material was not smooth oil circulate in the system of degradation, corrosion in the system's components, especially the corrosion of bearing parts, such as corrosion of bearing can easily produce the problem such as fatigue spalling, wear and agglutination; The aperture of the oil film bearing wear cause its shape is irregular, destroying oil wedge formation conditions, finally incur a shaft, gear, bearing, such as corrosion, roller and bearing damage, more serious is that a frame system of burning loss can cause pollution, provoked other rack chain reaction. Materials indicate that the main reason of mechanical problem or early wear, more than half of them are related to the smooth technology. Smooth management well, to avoid bearing, gear friction in the moving parts, such as scratches or sintering, avoid and reduce the wear and tear, reduce the friction resistance, prevent the onset of equipment accident, advance equipment consumption efficiency; Energy conservation, the progress of energy efficient utility ratio, increasing the economic benefit, is the main task of the mill and smooth work. （ 1) Under the precondition of reasonable fuel tank capacity, adhere to the reasonable tank oil level, often to the oil tank fill smooth, make the oil tank of oil has been in a reasonable operation, the oil degassing, precipitation machine noise, separation of water and reduce the oil temperature in the cabinet are favorable. （ 2) Timing, automatic positioning sample during testing operation, from product flavor, color, viscosity, water content, water change, pollutant category and content, anti-foam performance such as stop testing laboratory. Enter the smooth water content in oil of beyond zero. Sharply increased 1%, the mechanical wear and tear; Beyond zero. 5% when the situation will be very smooth and equipment risk. （ 3) Automatically analyze the match each test records, prediction to stop the bad smooth forecast, work out improvement or measures are avoided. On the system of the oil level, oil, oil temperature, oil pressure alarm and interlock control to secure peace, smooth eradicate the attack of the accident. （ 4) Smooth control of oil pollution, low oil major project acceptance the reinspection: viscosity, viscosity index, water content, emulsification, extreme pressure resistance. Cleanliness request mechanical impurities in 0. Within 01%, no traces of water and sediment and so on. Low at the top of the tank manhole cover plate should cover tightly, do not open. Set air filter filtration precision in more than 100 mesh, regular check clearing, a drain valve timing emissions at the bottom of the tank. Smooth oil pipeline pump, the petrol tank fill and furnish appropriate filtration precision filter. Precipitation tank should be regularly clearing sludge, are not allowed to use with wipe fiber fabric appearance inside the tank. To change infarction of the filter core, should be no oil filter cartridge memory, watch the dirt into the filter downstream piping, forming serious not second pollution, otherwise will directly endanger the normal smooth smooth points. Low basis in the shade of the oil, viscosity, water and pollution index change situation, on time and qualified gas and oil change.