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压路机发动机上的增压器如何使用？
来源：/ 日期：2023-03-01
为什么增压器是压路机发动机上容易出故障的总成？因为增压器的额定工作转速在每分钟13万转以上，且处于排气歧管出口处，温度非常高（800℃以上），进、排气压力也较大，即高温、高压、高转速，所以对增压器的润滑和冷却及密封的要求比较高。为了保证增压器的使用寿命，在设计上要保证对增压器浮动轴承的润滑和冷却，同时济南压路机租赁人员认为，在使用中要求做到：
Why is the supercharger an assembly prone to failure on the engine of the road roller? Because the rated working speed of the supercharger is more than 130000 rpm, and it is at the outlet of the exhaust manifold, the temperature is very high (more than 800 ℃), and the inlet and exhaust pressures are also high, that is, high temperature, high pressure, high speed, so the requirements for lubrication, cooling and sealing of the supercharger are higher. In order to ensure the service life of the supercharger, the lubrication and cooling of the floating bearing of the supercharger should be guaranteed in the design. At the same time, the leasing personnel of Jinan roller believed that the following requirements should be met in the use:
①发动机起动后应怠速运转3-5分钟，不要立即加负荷，以保证增压器的良好润滑。主要原因是增压器位于发动机的顶部，如果发动机起动后增压器立即开始高速运转，就会导致机油压力未能及时升高给增压器供油，造成增压器缺油损坏，甚烧坏整个增压器。
① After the engine is started, it should run at idle speed for 3-5 minutes. Do not load it immediately to ensure the good lubrication of the supercharger. The main reason is that the supercharger is located on the top of the engine. If the supercharger starts to run at high speed immediately after the engine is started, the oil pressure will not rise in time to supply oil to the supercharger, causing the supercharger to be damaged due to lack of oil, and even burning the entire supercharger.
②怠速时间不宜过长，一般不超过10分钟，怠速时间过长容易造成压气机端漏油。
② The idle time should not be too long, generally not more than 10 minutes, which is easy to cause oil leakage at the compressor end.
③停车前不要立即关闭发动机，应怠速3-5分钟，以使增压器转速和排气系统的温度降下来，防止发生回热—机油结焦—轴承烧损等故障。经常性的不正确使用会使增压器损坏。
③ Do not shut down the engine immediately before stopping. Idle for 3-5 minutes to reduce the speed of the supercharger and the temperature of the exhaust system, and prevent the failure of heat regeneration - oil coking - bearing burning. Frequent incorrect use will damage the supercharger.
④长期未使用的发动机（一般超过7天），或新换增压器的发动机，在使用前应在增压器的进油口加注机油，否则会因润滑不良降低寿命或损坏增压器。
④ The engine that has not been used for a long time (generally more than 7 days), or the engine with a new supercharger, should be filled with oil at the oil inlet of the supercharger before use, otherwise the life of the supercharger will be reduced or the supercharger will be damaged due to poor lubrication.
⑤定期检查各连接部位是否有松动漏气漏油现象，回油管是否通畅，如有应及时排除。
⑤ Regularly check whether there is looseness, air leakage and oil leakage at all connecting parts, and whether the oil return pipe is smooth. If any, it should be eliminated in time.
⑥保证空气滤清器清洁，并按要求定期更换。
⑥ Ensure that the air filter is clean and replace it regularly as required.
⑦定期更换机油滤清器。
⑦ Replace the oil filter regularly.
⑧定期检查增压器轴的径向轴向间隙，轴向间隙应不大于0.15毫米，径向间隙为：叶轮与压壳的间隙不小于0.10毫米，否则应请专门的人员维修，以免扩大损失。
⑧ Regularly check the radial and axial clearance of the supercharger shaft. The axial clearance should not be greater than 0.15 mm. The radial clearance is: the clearance between the impeller and the pressure housing should not be less than 0.10 mm. Otherwise, special personnel should be invited for maintenance to avoid expanding the loss.
How can the supercharger on the roller engine be used safely? The above is the relevant content of the problem. I hope it can help you. If there is anything else, please come to our website Ask!
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