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聯系人：劉老師

電話：400-879-1999

公司：山東山汽工程機械（集團）有限公司

地址：山東省萊州市206國道與308省道交叉口東南50米

從攪拌車異響上可以判斷出什么故障？

所屬分類：行業(yè)動態(tài) 發(fā)布時間：2022-06-02 來源：http://klalyy.cn/ 瀏覽量：0

經常駕駛攪拌車的人對攪拌車的常見故障都是非常了解的，甚從攪拌車的一些聲響上就可以判斷出攪拌車出現了什么故障，今天就教大家?guī)渍校涸趺赐ㄟ^攪拌車的異響判斷故障問題。

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. 當柴油機忽然改動負荷時，在曲軸箱左近可明顯地聽到急促的“空、空、空”鈍啞的敲擊聲，并隨著負荷或轉速的增加而急劇變化，響聲大，翻開加油機蓋可聽得更分明，無負荷時則不明顯。這是由于連桿瓦過度磨損而形成連桿瓦與曲軸連桿軸頸配合間隙過大所致，若使柴油機某缸斷油，異響立刻消失，則證明是該缸的連桿瓦響。

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. 當柴油機在其曲軸箱下部有繁重而連續(xù)的敲擊聲，低速時聲音清晰可辨，重負荷時更加明顯，同時油壓隨著降低，這是曲軸主軸瓦間隙過大造成的，當發(fā)動機低速忽然改動轉速時，在氣缸上部發(fā)出“鐺、鐺”的響聲，這一般是活塞銷與連桿襯套、或與活塞銷座的配合間隙過大所致。

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. 如果在攪拌車發(fā)動機高速運轉時，發(fā)出“咯噔、咯噔”的悶擊聲，忽然減小油門尤為嚴重，這是因主軸瓦軸向間隙過大所致，在氣缸全長部位聽到轟鳴、沉悶的“空咚、空咚”的敲擊聲，且翻開加油機口蓋時發(fā)現有氣泡，這是活塞與缸套配合間隙過大所致。

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軸方向聽到“嘎、嘎、嘎”的撞擊聲，則是連桿扭曲致使其在工作中搖晃的敲擊聲，后兩種聲響在改動轉速時更能明顯聽到，且較易于區(qū)別，沿氣缸上下各處均有相似小鐵錘輕擊鐵塊的聲音，柴油機排氣管冒藍煙（伴有燒機油現象），用長柄螺絲刀抵在缸體處更易于聽出，這種情況就是活塞環(huán)側隙過大或環(huán)折斷所致。

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.

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