Underground command vehicle is becoming more and more popular on the construction site, and its use effect is very worthy of recognition. Even if the working environment is very bad, its use effect is also very good. Then, it is inevitable that there will be failures when working under bad conditions. I think we will encounter the problem of steering failure when using it. This is a serious phenomenon and dangerous, so let's introduce the countermeasures when we encounter this situation.

由于井下指揮車(chē)使用過(guò)程中，出現(xiàn)過(guò)轉(zhuǎn)向失靈故障，方向盤(pán)轉(zhuǎn)不動(dòng)，或者用力才能轉(zhuǎn)動(dòng)一點(diǎn)。轉(zhuǎn)向是由液壓轉(zhuǎn)向器控制的，檢查是否是液壓轉(zhuǎn)向器內(nèi)部機(jī)械卡死，拆開(kāi)轉(zhuǎn)向器，看有沒(méi)有發(fā)現(xiàn)任何零件脫落卡住現(xiàn)象。

During the use of the underground command car, there was a steering failure, and the steering wheel could not rotate, or it could only rotate a little with force. The steering is controlled by the hydraulic steering gear. First, check whether the internal machinery of the hydraulic steering gear is stuck. Disassemble the steering gear to see if any parts fall off and get stuck.

再檢查發(fā)現(xiàn)轉(zhuǎn)向器閥塊的進(jìn)油口是否有小塊顆粒狀雜物，將進(jìn)油口附近的單向閥堵住。清理干凈雜物后，轉(zhuǎn)向器即恢復(fù)正常。

Then check whether there are small granular sundries at the oil inlet of the steering gear valve block, and block the check valve near the oil inlet. After the sundries are cleaned, the steering gear will return to normal.

因此，當(dāng)其他井下指揮車(chē)出現(xiàn)類(lèi)似故障時(shí)，很快就排除。對(duì)這些雜物來(lái)源作了調(diào)查，原來(lái)液壓系統(tǒng)回油管路上有個(gè)線(xiàn)隙濾油器，使用的一種粘合劑易脫落，脫落的顆粒順著回油管到油箱，再經(jīng)油泵到轉(zhuǎn)向器，滯留在單向閥上造成故障。

Therefore, when other underground command vehicles have similar faults, they will be eliminated soon. The sources of these sundries were investigated. There was a line gap oil filter on the oil return pipeline of the hydraulic system. An adhesive used was easy to fall off. The fallen particles went along the oil return pipe to the oil tank, then to the steering gear through the oil pump, and remained on the one-way valve, causing failure.

為了減少轉(zhuǎn)向失靈的現(xiàn)象，在使用指揮車(chē)的液壓系統(tǒng)上的任何元件，都不應(yīng)使用易脫落或被液壓油浸泡后會(huì)成碎片的材料制作，避免因材料不好造成的堵塞，液壓元件生產(chǎn)廠(chǎng)家尤應(yīng)重視。

In order to reduce the phenomenon of steering failure, any component on the hydraulic system of the command vehicle should not be made of materials that are easy to fall off or will become fragmented after being soaked in hydraulic oil, so as to avoid blockage caused by poor materials. The manufacturer of hydraulic components should pay particular attention to it.

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