【 Lubrication case 】 A cement plant slow roller bearing damage

【 Lubrication case 】 A cement plant 2019 - slow roller bearing damage 01 - 18 a, case background a cement plant over the years has been widely research testing equipment oil monitoring work. Detected by monitoring purpose mainly through the oil equipment may appear early wear, so as to take timely measures to maintenance. Second, monitoring situation in November 2016, widely research test for the cement plant a vertical mill three roller oil monitoring, found 2 # roller wear indicators of oil PQ, Fe content obviously higher than that of 1 # and 3 # roller, and significantly higher than history. After the 2 # roller samples for further grinding grain analysis, found that the samples are a large number of copper alloy, and a small amount of steel abnormal wear particles, show that the bearing has existed serious abnormal wear and tear, which maintains the wear is more severe. On-site to teardown the grinding machine maintenance, within 2 # roller bearing found a large number of wear particles, the bearing cage wear serious, severe fatigue spalling, bearing inner ring bearing failure, had to make a change. Bearing appear fatigue wear one of the important reason is that the oil film strength is insufficient, and the size of the viscosity is one of the main performance of the oil film strength. Bearing long-term treatment in oil film strength is insufficient, extremely easy to cause the wear of roller and race, at the same time also exacerbate the cage of the wear and tear. 2 # roller oil found in a large number of copper alloy grinding grain of three lubricating oil testing, case revelation of each performance index and the safe operation of the equipment has the close relationship between, when a certain index anomalies, equipment often will not immediately fails, if the abnormal situation can not get attention, once things from quantitative change to qualitative change, the price is often huge. Wide research detection test center in shandong is the domestic specialized in various kinds of industrial oil and fuel oil products such as all-round analysis testing, lubrication reliability management training, lubrication, lubrication reliability management information software, on-line oil monitoring equipment of the third oil monitoring lab organization, the housekeeper type service, to provide comprehensive technical service and support, to provide oil product quality confirmation, equipment for the enterprise to provide testing, preventive maintenance, to help enterprises solve the problem.