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从搅拌车异响上可以判断出什么故障?

所属分类: 行业动态 发布时间:2022-06-02 来源:http://www.shanqijituan.cn/ 浏览量:18

经常驾驶搅拌车的人对搅拌车的常见故障都是非常了解的,甚至从搅拌车的一些声响上就可以判断出搅拌车出现了什么故障,今天就教大家几招:怎么通过搅拌车的异响判断故障问题。
People who often drive the mixer truck are very familiar with the common faults of the mixer truck. They can even judge the fault of the mixer truck from some sound of the mixer truck. Today, I will teach you a few tricks: how to judge the fault problem through the abnormal noise of the mixer truck.
1. 当柴油机忽然改动负荷时,在曲轴箱左近可明显地听到急促的“空、空、空”钝哑的敲击声,并随着负荷或转速的增加而急剧变化,响声大,翻开加油机盖可听得更分明,无负荷时则不明显。这是由于连杆瓦过度磨损而形成连杆瓦与曲轴连杆轴颈配合间隙过大所致,若使柴油机某缸断油,异响立刻消失,则证明是该缸的连杆瓦响。
1. when the load of the diesel engine is suddenly changed, the rapid "empty, empty, empty" dull knocking sound can be obviously heard near the crankcase, and it changes sharply with the increase of load or speed. The sound is loud. It can be heard more clearly by opening the fuel dispenser cover, but it is not obvious when there is no load. This is due to the excessive wear of the connecting rod bush, resulting in the excessive fit clearance between the connecting rod bush and the crankshaft connecting rod journal. If the oil supply of a cylinder of the diesel engine is cut off and the abnormal sound disappears immediately, it is proved that the connecting rod bush of the cylinder is making a noise.
2. 当柴油机在其曲轴箱下部有繁重而连续的敲击声,低速时声音清晰可辨,重负荷时更加明显,同时油压随着降低,这是曲轴主轴瓦间隙过大造成的,当发动机低速忽然改动转速时,在气缸上部发出“铛、铛”的响声,这一般是活塞销与连杆衬套、或与活塞销座的配合间隙过大所致。
2. when the diesel engine has a heavy and continuous knocking sound at the lower part of the crankcase, the sound is clear at low speed and more obvious at heavy load. At the same time, the oil pressure decreases, which is caused by the excessive clearance of the crankshaft main bearing. When the engine suddenly changes the speed at low speed, the sound of "clang, clang" is emitted at the upper part of the cylinder, which is generally caused by the excessive clearance between the piston pin and the connecting rod bushing, or the piston pin seat.
3. 如果在搅拌车发动机高速运转时,发出“咯噔、咯噔”的闷击声,忽然减小油门尤为严重,这是因主轴瓦轴向间隙过大所致,在气缸全长部位听到轰鸣、沉闷的“空咚、空咚”的敲击声,且翻开加油机口盖时发现有气泡,这是活塞与缸套配合间隙过大所致。
3. when the mixer truck engine is running at a high speed, it makes a clunky sound of "clunking, clunking", especially when the accelerator is suddenly reduced, which is caused by the excessive axial clearance of the main bearing bush, the roaring and dull "empty clunking, empty clunking" sound is heard at the full length of the cylinder, and bubbles are found when opening the filler cap, which is caused by the excessive clearance between the piston and the cylinder liner.
4. 如果在同一部位略靠曲轴方向听到“嘎、嘎、嘎”的撞击声,则是连杆扭曲致使其在工作中摇晃的敲击声,后两种声响在改动转速时更能明显听到,且较易于区别,沿气缸上下各处均有相似小铁锤轻击铁块的声音,柴油机排气管冒蓝烟(伴有烧机油现象),用长柄螺丝刀抵在缸体处更易于听出,这种情况就是活塞环侧隙过大或环折断所致。
4. if the impact sound of "GA, GA, GA" is heard at the same part slightly near the crankshaft direction, it is the knocking sound caused by the distortion of the connecting rod during operation. The latter two sounds can be heard more clearly when the speed is changed and are easier to distinguish. Similar small hammers tap iron blocks at the top and bottom of the cylinder. The diesel engine exhaust pipe emits blue smoke (accompanied by oil burning). It is easier to hear when the long handle screwdriver is pressed against the cylinder, This situation is caused by excessive piston ring side clearance or ring breakage.
本文的精彩内容由多功能搅拌车提供知识提供,本网站还有很多的精彩内容,更多的内容您可以点击进入:http://www.shanqijituan.cn/我们有专门的客服为您解答问题
The wonderful content of this article is provided by the knowledge provided by the multi-functional mixer. There are many wonderful content on this website. You can click to enter more content: http://www.shanqijituan.cn/ We have special customer service to answer your questions
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