The most basic maintenance of roots blower is to change the oil. Generally, the oil should be changed after the roots blower has operated for 1000 hours accumulatively. 220 # gear oil shall be used for replacement. The oil level shall be half of the oil mirror, and it shall not be too high or too low.
Pay attention to the position of the oil mirror during daily inspection. Once the oil level is found to be less than half of the oil mirror, it should be supplemented in time. If the Roots blower is short of oil for a long time, the motor will burn down in serious cases. In addition to the daily inspection of oil level, the inspection of belt tightness and air filter element is also important. All parts of Roots blower, no matter how small, are vital. Don't be penny wise and pound foolish because of laziness and neglect.
When changing the oil, drain the oil in the oil tank first and then inject new oil. It is better not to add the oil on the basis of the old oil, because the oil in the oil tank will be too dirty and thick after a long time. This will affect the operation of Roots blower.
The lubricating oil of roots blower bearing should be replaced at least once every six months when it is used normally. When it is used for the first time, it should be replaced after about 200 hours of operation. The second oil change should be conducted in 1 to 2 months. After that, the lubricating oil should be checked once a week. If the lubricating oil is not deteriorated, the oil change can be extended to once every 2 to 4 months, The specified brand of lubricating oil must be used for replacement, and the old oil in the oil tank must be completely drained and cleaned before new oil can be filled.
If the fan bearing needs to be replaced, pay attention to the following:
Before installing the new bearing, the bearing and bearing housing must be very clean. Place the bearing in the oil with a temperature of about 70~80 ℃ and heat it before installing it on the shaft. Do not force assembly to avoid damaging the shaft.
Replacement of lubricating oil. There are generally three management methods for oil change of blower:
Change the oil on time, that is, according to the specified time cycle. For example, change the oil every 3 months or so. As soon as the deadline comes, replace all the oil regardless of its quality. This method is simple and conservative, so it will cause waste and increase operating costs.
Change the oil according to the quality, that is, according to the performance of the lubricating oil. Once the oil quality index exceeds the allowable standard, it shall be replaced regardless of the service time. This method is economical, but it is difficult to judge accurately.
Change the oil on time and according to the quality, that is, refer to a certain oil change cycle, and change the oil according to the change of oil quality. For example, if there is less dust pollution, change the oil every 6 months or so, and if the pollution is serious, change the oil every 3 months or so. If the oil color becomes darker, turbid, and there are dirt deposits and solid particles, the oil change period should be further shortened.
The identification of lubricating oil, no matter which method of oil change, is to ensure that the lubricating oil has its due performance. Therefore, the following simple methods can be used to identify the quality of lubricating oil.
When lubricating oil is used, it will be oxidized and deteriorated due to the influence of air and other media. In order to judge the degree of oxidation deterioration, the sediment sludge at the bottom of the oil tank can be taken and put between the index finger and the thumb to rub against each other. If there is more oil sludge but poor adhesion, it means that the oxidation of oil is not too serious, but it is not clean and needs to be filtered. If there is much gum and strong adhesion, it indicates that the lubricating oil has deteriorated seriously and cannot be used any more.
Mechanical impurities in lubricating oil, including foreign suspended solids or insoluble substances such as dust, sand and metal particles deposited in the oil, will damage the oil film and increase wear. When the impurity content reaches a certain concentration, the lubricating oil cannot be used any more. According to experience, if the color of the oil is still no obvious improvement after filtering after it turns black, it should be replaced.
Water will increase the corrosiveness of the oil and make the oil aging; It is easy to form bubbles and make the oil lose its lubricity. Therefore, the moisture content should be controlled. High quality lubricants should be free of moisture. In practical application, in the case of water cooling, due to the penetration of cooling water, the lubricating oil deteriorates and fails. In order to check whether there is water, clean and dry cotton yarn can be used without lubricating oil and ignited with fire. If there is water in the oil, there will be explosion or flash.
I believe that after reading the above content, you should also understand the replacement standard of Roots blower lubricating oil. I hope it will be helpful to you.
Text term label: Roots blower
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