Reducer is an important part of concrete mixer truck. What role does reducer play in mixer truck? When you know the working principle of the concrete mixer, you can understand the function of the reducer. The working principle of the mixer is to take out the power of the special vehicle chassis through the power take-off device, drive the variable pump of the hydraulic system, convert the mechanical energy into hydraulic energy and transmit it to the quantitative motor. The motor then drives the reducer, and the reducer drives the mixing device to mix the concrete.

1、漏油： 軸封漏油，軸封漏油多是由于使用不當造成減速機劃傷或減速機輸出軸劃傷及異物纏繞所致。此時需要更換軸封或者是更換油封，在減速機的使用過程中要及時清理油封 處異物。

1. Oil leakage: the shaft seal leaks oil. The oil leakage of the shaft seal is mostly caused by the scratch of the reducer or the scratch of the output shaft of the reducer and the winding of foreign matters caused by improper use. At this time, the shaft seal or oil seal needs to be replaced. During the use of the reducer, the foreign matters at the oil seal shall be cleaned in time.

端蓋與殼體連接處漏油，這種形式的漏油多是由于減速機連接螺栓松動造成的，此時需要及時的復緊端蓋和殼體連接螺栓或者更換減速機，或者是更換減速機端 蓋和殼體間的O型圈。為避免此類情況再發生，平時要定期的檢查螺栓扭力。

There is oil leakage at the connection between the end cover and the housing. This form of oil leakage is mostly caused by the loose connecting bolts of the reducer. At this time, it is necessary to re tighten the connecting bolts of the end cover and the housing in time, or replace the reducer, or replace the O-ring between the end cover and the housing of the reducer. In order to avoid this kind of situation, the bolt torque shall be checked regularly at ordinary times.

馬達和減速機連接處漏油，這主要是因為馬達和減速機在安裝的時候對O型圈的密封不達標。此時需要更換馬達和減速機連接處的O型圈，檢查馬達和減速機安裝表面是否 有劃傷。在攪拌車的平時使用過程中注意檢查馬達和減速機安裝的螺栓是否有松動。

There is oil leakage at the connection between motor and reducer, which is mainly because the O-ring seal of motor and reducer is not up to standard during installation. At this time, it is necessary to replace the O-ring at the connection between the motor and reducer and check whether the mounting surface of the motor and reducer is scratched. During the normal use of the mixer truck, pay attention to check whether the bolts installed on the motor and reducer are loose.

2、異響 在水泥攪拌車的使用過程中減速機如果出現異響，要做一下檢查：查看減速機內是否有齒輪油；在油位觀察窗處檢查油位是否正常；放出少量油液看是否有發黑變質并校對保 養時間；檢查減速機是否受到過外力的沖擊。如果放油發現有大量鐵屑，那就是減速機內部已經損壞，須更換減速機，平時要定期的對減速機做保養。

2. Abnormal noise during the use of cement mixer truck, if the reducer makes abnormal noise, check it: check whether there is gear oil in the reducer; Check whether the oil level is normal at the oil level observation window; Drain a small amount of oil to see if there is blackening and deterioration, and check the maintenance time; Check whether the reducer has been impacted by external force. If a large amount of iron filings is found in the oil drain, the reducer has been damaged. The reducer must be replaced. The reducer should be maintained regularly at ordinary times.

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