攪拌機的驅動橋輸出扭矩大，結構復雜，容易出現故障。下面我們將介紹常見故障的原因、現象及處理方法。

The drive axle of the mixer has large output torque and complex structure, which is prone to failure. Next, we will introduce the causes, phenomena and treatment methods of common faults.

1、聲音異常。

1. Abnormal sound.

驅動橋發出聲音的原因比較復雜。如果零件質量不達標，主傳動總成調整不當，磨損過大，裝載機工作時會發出噪音。

The reasons for the sound of the drive axle are complex. If the quality of parts is not up to standard, the main drive assembly is improperly adjusted, and the wear is too large, the loader will make noise when working.

(1)齒輪嚙合間隙不當引起的聲音。例如嚙合間隙過大的牙齒相互碰撞，發出有節奏的“咯咯、咯咯”聲；如果嚙合間隙過小，牙齒相互擠壓，聲音為連續的“咳”聲，并伴有發熱；當嚙合間隙不均勻時，聲音為有節奏的“硬”聲，嚴重時驅動橋會擺動。處理方法是拆下主傳動機構，重新調整齒輪的嚙合間隙。

(1) Sound caused by improper gear meshing clearance. For example, teeth with too large meshing gap collide with each other, making a rhythmic "cluck, cluck" sound; If the meshing gap is too small, the teeth squeeze each other, and the sound is a continuous "cough" sound, accompanied by fever; When the meshing clearance is uneven, the sound is a rhythmic "hard" sound, and the drive axle will swing in serious cases. The treatment method is to dismantle the main transmission mechanism and readjust the meshing clearance of the gears.

(2)軸承間隙不當的聲音。若軸承游隙過小，則發出“響……”的連續聲；軸承游隙過大時，會發出凌亂的“哈啦，哈啦”聲。方法是拆下主傳動機構，重新調整軸承游隙。

(2) Sound of improper bearing clearance. If the bearing clearance is too small, a continuous sound of "ring..." will be emitted; When the bearing clearance is too large, it will make a messy "ha, ha" sound. The solution is to remove the main transmission mechanism and readjust the bearing clearance.

(3)差速器異響：如行星齒輪與十字軸卡死時，會出現“嘎嘎、嘎嘎”的聲音，多發生在轉彎時；行星齒輪嚙合不良的聲音比較復雜，機器在直線行駛時是“嗯……”的聲音，機器轉速越高，聲音越大，還會有轉動時發出“咔嚓”聲。處理方法是拆下主傳動機構，更換十字軸或行星齒輪。

(3) Differential abnormal noise: if the planetary gear and cross shaft are stuck, there will be a "quack, quack" sound, which mostly occurs when turning; The sound of poor meshing of planetary gears is more complex. When the machine runs in a straight line, it is the sound of "hum...". The higher the speed of the machine, the louder the sound is, and there will be a "click" sound when it rotates. The treatment method is to remove the main transmission mechanism and replace the spider or planetary gear.

2.過熱。

2. Overheating.

例如，機器運轉或工作一段時間后，如果觸摸橋殼，如果感覺很熱，則說明驅動橋過熱。主要原因是軸承游隙和齒輪嚙合游隙太小，缺少潤滑油。處理方法是先檢查是否缺少潤滑油。如不缺油，應拆下主傳動，檢查調整軸承間隙或齒輪嚙合間隙。

For example, if you touch the axle housing after the machine is running or working for a period of time, if it feels very hot, it means that the drive axle is overheated. The main reason is that the bearing clearance and gear meshing clearance are too small and lack of lubricating oil. The treatment method is to check whether there is a lack of lubricating oil first. If there is no lack of oil, remove the main drive, check and adjust the bearing clearance or gear meshing clearance.

3.漏油。

3. Oil leakage.

漏油現象是自動混凝土攪拌機在運轉或停車時，在主傳動與橋殼的接合處以及輪轂減速器內側有齒輪油滲出。主傳動與橋殼連接處漏油是由于螺栓松動或石棉紙墊片損壞；輪轂減速器內部漏油主要是雙口骨架油封或“O”形密封圈損壞。處理方法是更換雙唇骨架油封或石棉紙墊。

The phenomenon of oil leakage is that when the automatic concrete mixer is running or stopped, there is gear oil seepage at the joint between the main drive and the axle housing and the inner side of the hub reducer. The oil leakage at the connection between the main drive and the axle housing is due to loose bolts or damaged asbestos paper gaskets; The oil leakage inside the hub reducer is mainly caused by the damage of the double port skeleton oil seal or "O" ring. The treatment method is to replace the double lip framework oil seal or asbestos paper pad.

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