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In the process of using the mixer, if the hydraulic system has problems, the operation performance of the mixer will be greatly reduced. Only by understanding the causes of the hydraulic system fault and eliminating the fault in time can the mixer recover to normal. Share the reasons, diagnosis and cleaning methods of insufficient or no pressure in the hydraulic system of the mixer, for our reference and learning. If there is insufficient or no pressure in the hydraulic system of the automatic mixer truck, we can check it according to the following aspects:

一、查看液壓泵是否能輸出液壓油。假如是新的液壓泵，無(wú)液壓油輸出，可能是泵體有鑄造缺點(diǎn)（縮孔、砂眼等），使吸油腔和壓油腔相通，失掉壓油能力，應(yīng)及時(shí)找廠(chǎng)家替換。若不是新的液壓泵，無(wú)液壓油輸出，則可能是泵的轉(zhuǎn)向不對(duì)，零件磨損嚴(yán)峻或損壞，及時(shí)替換。

1、 Check whether the hydraulic pump can output hydraulic oil. If it is a new hydraulic pump, no hydraulic oil output, it may be that the pump body has casting defects (shrinkage cavity, sand hole, etc.), so that the oil suction cavity and the pressure oil cavity are connected, and the oil pressure capacity is lost, it should be replaced by the manufacturer in time. If it is not a new hydraulic pump and there is no hydraulic oil output, it may be that the steering direction of the pump is not correct, parts are severely worn or damaged, so replace them in time.

二、自動(dòng)攪拌車(chē)若液壓泵有油液輸出，查看溢流閥作業(yè)是否正常。若不正常，則可能是壓力油路中的某個(gè)閥有污物或其他原因卡住，處于回油方位，致使壓力油路與溢流回路短路，也可能是管接頭松脫，或處于壓力油路中的某些閥走漏嚴(yán)峻，或液壓缸、液壓馬達(dá)的密封損壞，嚴(yán)峻走漏。

2、 If the hydraulic pump of the automatic mixer has oil output, check whether the relief valve works normally. If it is abnormal, it may be that a certain valve in the pressure oil circuit is stuck due to dirt or other reasons, and it is in the oil return direction, resulting in the short circuit between the pressure oil circuit and the overflow circuit, or the loose pipe joint, or serious leakage of some valves in the pressure oil circuit, or the seal damage of the hydraulic cylinder and hydraulic motor.

掃除辦法：拆開(kāi)有關(guān)閥進(jìn)行清洗，查看密封空隙的大小及各種密封設(shè)備，密封設(shè)備損壞應(yīng)替換。

Cleaning method: disassemble the relevant valve for cleaning, check the size of sealing gap and various sealing equipment, and replace the sealing equipment if it is damaged.
              

三、攪拌車(chē)若液壓泵輸出流量隨壓力升高而顯著減小，且壓力達(dá)不到規(guī)定值，則是因?yàn)橐簤罕媚p后空隙增 大所致。

3、 If the output flow of the hydraulic pump of the mixer truck decreases significantly with the increase of the pressure, and the pressure can not reach the specified value, it is due to the increase of the gap after the hydraulic pump is worn.

掃除辦法：測(cè)定液壓泵的容積功率，即可確定該泵是否能繼續(xù)運(yùn)用，對(duì)磨損嚴(yán)峻的零件，應(yīng)進(jìn)行修配或替換。

Cleaning method: determine the volume power of the hydraulic pump to determine whether the pump can continue to use. Repair or replace parts with severe wear.

四、攪拌車(chē)若整個(gè)液壓系統(tǒng)能建立正常壓力，而某些管路或液壓缸（或液壓馬達(dá)）中無(wú)壓力，則可能是因?yàn)楣苈?、小孔或?jié)流閥、換向閥等部位堵塞。此時(shí)，應(yīng)逐段查看壓力和有無(wú)油液經(jīng)過(guò)，找出原因，加以?huà)叱Ｈ缛魯嚢柢?chē)呈現(xiàn)液壓系統(tǒng)壓力不足或完全無(wú)壓力的情況就可依據(jù)以上的辦法排查與處理，讓攪拌車(chē)及時(shí)康復(fù)正常狀況。

4、 If the whole hydraulic system of the mixer can establish normal pressure, but there is no pressure in some pipelines or hydraulic cylinders (or hydraulic motors), it may be due to blockage of pipelines, orifices, throttle valves and directional valves. At this time, check the pressure and whether there is oil passing by section by section, find out the reason and clean it. If there is insufficient or no pressure in the hydraulic system of the mixer, we can check and deal with it according to the above methods, so that the mixer can recover in time.

以上就是怎么處理自動(dòng)攪拌車(chē)系統(tǒng)壓力不足的問(wèn)題介紹，希望對(duì)大家有所幫助，如想了解更多資訊內(nèi)容請(qǐng)多多關(guān)注咱們的網(wǎng)站。

The above is how to deal with the problem of insufficient pressure in the automatic mixer system. I hope it will help you. If you want to know more about it, please pay more attention to our website.