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攪拌車運(yùn)行時，后軸有噪音，特別是轉(zhuǎn)速急劇變化時，能聽得清清楚楚。當(dāng)有異常聲音時，應(yīng)注意其特點進(jìn)行診斷。

When the mixer truck is running, there is noise on the rear axle, especially when the rotating speed changes sharply, you can hear it clearly. When there is abnormal sound, pay attention to its characteristics for diagnosis.

①自動上料攪拌車運(yùn)行時，后軸連續(xù)有異響或節(jié)律性沖擊噪聲，且隨著車速的增加，噪聲增大。

① When the automatic loading mixer is running, there is continuous abnormal noise or rhythmic impact noise on the rear axle, and the noise increases with the increase of vehicle speed.

②攪拌車運(yùn)行時，后軸有節(jié)律性異響，隨車速的增加而增加，特別是燃油門或節(jié)氣門關(guān)閉時，嚴(yán)重時后軸擺動。

② When the mixer truck is running, the rear axle makes a rhythmic abnormal noise, which increases with the increase of vehicle speed, especially when the fuel valve or throttle valve is closed, and the rear axle swings seriously.

③攪拌車高速（接近60km/h）運(yùn)行，油門縮回時，后軸有異響，后軸有晃動。

③ When the mixer truck runs at high speed (nearly 60km/h) and the accelerator retracts, the rear axle makes abnormal noise and shakes.

后軸的異響故障不僅是噪聲侵襲人、齒輪等零件磨損加劇，而且嚴(yán)重影響車輛的正常行駛。因此，行車中應(yīng)注意檢查和傾聽，及時排除故障。

The abnormal sound fault of the rear axle is not only the noise attacks people, the wear of gear and other parts is aggravated, but also seriously affects the normal driving of the vehicle. Therefore, pay attention to inspection and listening during driving to eliminate the fault in time.

行駛中如有持續(xù)的異響，應(yīng)停車檢查。如果用手觸摸后橋殼，如果發(fā)熱量不大，齒隙過?。蝗绻l(fā)熱嚴(yán)重，一般是缺油，應(yīng)檢查油位。根據(jù)情況調(diào)整齒隙或加潤滑油。行駛中如有撞擊聲，齒隙一般過大。

If there is continuous abnormal noise during driving, stop the vehicle for inspection. If the rear axle housing is touched by hand, if the heat is not large, the backlash is too small; If the heating is serious, it is generally lack of oil, and the oil level should be checked. Adjust the backlash or add lubricating oil according to the situation. If there is an impact sound during driving, the backlash is generally too large.

自動上料攪拌車車速越高，聲音越大，滑行時聲音減小或消失，一般是由于軸承磨損或齒隙異常引起的。急變速或上坡時有異響，說明齒隙過大。更換軸承或根據(jù)情況調(diào)整齒隙。

The higher the speed of the automatic loading mixer truck is, the louder the sound is. The sound decreases or disappears when sliding. It is generally caused by bearing wear or abnormal backlash. There is abnormal noise during rapid speed change or uphill, which indicates that the backlash is too large. Replace the bearing or adjust the backlash as appropriate.

此外攪拌車有時候會在轉(zhuǎn)彎時會有異響，即使低速直線行駛時也會有異響，但隨著車速的提高，異響會消失，主要原因是變速器行星齒輪嚙合間隙過大，或半軸齒輪和鍵槽磨損。如果在行駛過程中后軸突然發(fā)出噪音，大部分是輪齒損壞，應(yīng)立即停車檢查，否則會嚴(yán)重?fù)p壞齒輪。

In addition, the mixer sometimes makes abnormal noise when turning, even when driving at low speed in a straight line. However, with the increase of vehicle speed, the abnormal noise will disappear. The main reason is that the meshing clearance of the transmission planetary gear is too large, or the half shaft gear and keyway are worn. If the rear axle makes a sudden noise during driving, most of which is tooth damage, stop the vehicle immediately for inspection, otherwise the gear will be seriously damaged.

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