Maintenance driving device of self feeding concrete mixing tank truck

驅動裝置的作用是驅動混凝土貯罐轉動，它由取力器、萬向軸、液壓泵、液壓馬達、操縱閥、液壓油箱及冷卻裝置組成。如果這部分因故障停止工作，混凝土貯罐將不能轉動，這會導致車內混凝土報廢，嚴重的甚至使整罐混凝土凝結在罐內，造成混凝土攪拌運輸車報廢。因此，驅動裝置是否可靠是使用中一定要高度重視的問題。為保證驅動裝置完好可靠，應做好以下維護工作：

The driving device is used to drive the concrete storage tank to rotate. It is composed of power take-off, universal shaft, hydraulic pump, hydraulic motor, control valve, hydraulic oil tank and cooling device. If this part stops working due to failure, the concrete storage tank will not rotate, which will lead to the scrapping of the concrete in the vehicle, and even cause the whole tank of concrete to condense in the tank, resulting in the scrapping of the concrete mixing truck. Therefore, whether the driving device is reliable or not is a problem that must be paid great attention to in use. In order to ensure the integrity and reliability of the driving device, the following maintenance work shall be done:

a．萬向轉動部分是故障多發部位，應按時加注潤滑脂，并經常檢查磨損情況，及時修理更換。車隊應有備用的萬向軸總成，以保證一旦發生故障能在幾十分鐘內恢復工作。

a. The universal rotating part is the part with frequent faults, so it should be filled with grease on time, and the wear should be checked frequently and repaired and replaced in time. The fleet shall have a spare cardan shaft assembly to ensure that it can resume operation within tens of minutes in case of failure.

b．保證液壓油清潔。混凝土攪拌運輸車工作環境惡劣，一定要防止污水泥沙進入液壓系統。液壓油要按使用手冊要求定期更換。一旦檢查時發現液壓油中混入水或泥沙，就要立即停機清洗液壓系統、更換液壓油。

b. Ensure that the hydraulic oil is clean. The working environment of concrete mixer truck is bad, so it is necessary to prevent dirty cement sand from entering the hydraulic system. The hydraulic oil shall be replaced regularly according to the requirements of the operation manual. Once water or sediment is found in the hydraulic oil during inspection, stop the machine immediately to clean the hydraulic system and replace the hydraulic oil.

c．保證液壓油冷卻裝置有用。要定時清理液壓油散熱器，避免散熱器被水泥堵塞，檢查散熱器電動風扇運轉是否正常，防止液壓油溫度超標。液壓部分只要保證液壓油清潔，一般故障不多；但生產廠家不同，使用壽命則不一樣。

c. Ensure that the hydraulic oil cooling device is useful. Regularly check whether the hydraulic radiator is blocked by the hydraulic oil to prevent the hydraulic radiator from being blocked. As long as the hydraulic part keeps the hydraulic oil clean, there are few general faults; However, different manufacturers have different service life.

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