The purpose of timken bearing fault diagnosis is to ensure that the bearing can be reliably and effectively carried out under a certain working environment (under a certain load, running at a certain speed, etc.) and within a certain working period (a certain life), so as to ensure the work of the entire machine. precision. In accordance with this purpose, the fault diagnosis of thrust cylindrical roller bearing is to identify the light bearing state through the observation, analysis and processing of the signals that can reflect the working state of the bearing. Therefore, to a certain extent, it can be said that bearing fault diagnosis is bearing status identification. Diagnosis (state analysis) According to the symptoms, further analyze the relevant state and its development trend; when the bearing is faulty, analyze the type, nature, location, cause and trend of the fault in detail. 1. Immersion method: Timken bearings are immersed in anti-rust grease, and the surface is adhered to a layer of anti-rust grease. Oil film thickness can be achieved by controlling the temperature or viscosity of the anti-rust grease. 2. Brushing method: It is used for thrust cylindrical roller bearings or bearings with special shapes that are not suitable for immersion or spraying. When brushing, attention should be paid not only to prevent the accumulation of anti-rust oil, but also to prevent leakage. 3. Spray method: Some large timken bearings cannot be oiled by immersion method. Generally, the compressed air with a pressure of about 0.7mpa is used for spraying in a clean air place. The spray method is suitable for solvent-diluted anti-rust oil or thin-layer anti-rust oil, but perfect fire protection and labor protection measures must be adopted. The cleanliness of timken bearings has a considerable impact on the bearing life. We have conducted special tests for this, and the result is that the difference is several times or even dozens of times. The higher the cleanliness of the thrust cylindrical roller bearing, the longer the service life. The test shows that the lubricating oil with different cleanliness has a great influence on the life of the ball bearing. Therefore, improving the cleanliness of the lubricating oil can prolong the life of the bearing. In addition, if the dirt particles in the lubricating oil are controlled below 10um, the life of the timken bearing will also increase several times.
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