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自动搅拌一体车知识
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联系人:王老师

电话:400-879-1999

公司:山东山汽工程机械(集团)有限公司

地址:山东省莱州市206国道与308省道交叉口东南50米

所属分类: 行业动态 发布时间:2021-09-01 来源:http://www.shanqijituan.cn/ 浏览量:18

自动搅拌一体车发动机烧机油的原因和检修

自动搅拌一体车是我们生活中常见的工程车辆,车主们在使用过程重要注意保养周期和方式,不然的话有可能发生危险,现在我们就混凝土搅拌车发动机烧机油的原因来做一个简单的阐述。
Automatic mixer is a common engineering vehicle in our life. Owners should pay attention to the maintenance cycle and mode in the use process, otherwise it may be dangerous. Now we will briefly explain the reasons for the engine oil burning of concrete mixer.
混凝土搅拌车正常行驶条件下每行驶5000公里对制动蹄片检查一次,不仅要检查剩余的厚度,还要检查混凝土搅拌车蹄片磨损的状态,两边磨损的程度是否一样,回位是否自如等,发现不正常情况必须立即处理。更换时要换原厂备件提供的混凝土搅拌车刹车片,只有这样,才能使混凝土搅拌车刹车片和刹车盘之间的制动效果好,磨损小。搅拌车制动蹄片更换后,需磨合200公里方能达到佳的制动效果,刚换的混凝土搅拌车蹄片须谨慎行驶。自动搅拌一体车发动机烧机油的原因和检修的因素下面我们大家一起来了解一下:
Under the normal driving conditions of the concrete mixer, the brake shoe shall be inspected every 5000 km. Not only the remaining thickness, but also the wear state of the concrete mixer shoe, whether the wear degree on both sides is the same, whether it can return freely, etc. if abnormal conditions are found, they must be handled immediately. During replacement, the brake pads of the concrete mixer provided by the original spare parts shall be replaced. Only in this way can the braking effect between the brake pads and brake discs of the concrete mixer be good and the wear is small. After the brake shoe of the mixer is replaced, it needs to be run in for 200km to achieve good braking effect. The newly replaced concrete mixer shoe must be driven carefully. The causes and maintenance factors of engine oil burning of automatic mixer are as follows:

一,自动搅拌一体车混合气在燃烧室内燃烧,其火焰是由点火点以“波”的方式向四周扩散,所以从点火到油气完全燃烧需要一段短暂的时间。
1、 The mixture of the automatic mixing integrated vehicle burns in the combustion chamber, and its flame diffuses from the ignition point in a "wave" way, so it takes a short time from ignition to complete combustion of oil and gas.
二,油气虽然需要靠混凝土搅拌车火花塞点燃,但是过于高温、高压的环境也会使油气自燃。
2、 Although oil and gas need to be ignited by the spark plug of concrete mixer, too high temperature and high pressure environment will also cause oil and gas spontaneous combustion.
一般的爆震是因为燃烧室内油气点火后,火焰尚未完全扩散,远程未燃的油气即因为高温或高压而自燃,其火焰与正规燃烧的火焰撞击而产生较大压力,使得混凝土搅拌车发动机产生不正常的敲击。
The general detonation is because the flame has not fully diffused after the oil and gas in the combustion chamber is ignited. The long-distance unburned oil and gas is spontaneous combustion due to high temperature or high pressure. Its flame collides with the regular combustion flame to produce large pressure, resulting in abnormal knocking of the concrete mixer engine.
造成爆震主要有以下几点原因:
Knock is mainly caused by the following reasons:
一、点火角过于提前:为了使活塞在压缩上止点结束后,一进入动力冲程能立即获得动力,通常都会在活塞达到上止点前提前点火。而过于提早的点火会使得活塞还在压缩行程时,大部分油气已经燃烧,此时未燃烧的油气会承受较大的压力自燃,而造成爆震。
1、 Ignition angle is too early: in order to obtain power immediately after the piston enters the power stroke after the compression TDC, it is usually ignited in advance before the piston reaches the TDC. Too early ignition will cause most of the oil and gas to burn when the piston is still in the compression stroke. At this time, the unburned oil and gas will spontaneous combustion under great pressure, resulting in detonation.
二、自动搅拌一体车发动机过度积碳:混凝土搅拌车发动机于燃烧室内过度积碳,除了会使压缩比增大,也会在积碳表面产生高温热点,使混凝土搅拌车水泥发动机爆震。
2、 Excessive carbon deposition in the engine of the automatic mixer: excessive carbon deposition in the combustion chamber of the concrete mixer engine will not only increase the compression ratio, but also produce high-temperature hot spots on the carbon deposition surface, causing the cement engine of the concrete mixer to knock.
三、空燃比不正确:过于稀的燃料空气混合比,会使得燃烧温度提升,而燃烧温度提高会造成混凝土搅拌车发动机温度提升,当然容易爆震。
3、 Incorrect air-fuel ratio: too thin fuel air mixture ratio will increase the combustion temperature, and the increase of combustion temperature will increase the engine temperature of concrete mixer truck. Of course, it is easy to knock.
四、燃油辛烷值过低:辛烷值是燃油抗爆震的指标,辛烷值越高,抗爆震性越强。压缩比高的混凝土搅拌车发动机,燃烧室的压力较高,若是使用抗爆震性低的燃油,则容易发生爆震。
4、 Low octane number of fuel: octane number is an indicator of fuel anti knock. The higher the octane number, the stronger the anti knock performance. The pressure in the combustion chamber of the concrete mixer engine with high compression ratio is high. If the fuel with low explosion resistance is used, it is easy to knock.
自动搅拌一体车.制动蹄片一般由铁衬板和摩擦材料两部分组成,一定不要等摩擦材料部分都磨没了才更换蹄片。
The brake shoe of the automatic mixing integrated vehicle is generally composed of iron lining plate and friction materials. Do not replace the shoe until the friction materials are worn out.
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