全液壓轉(zhuǎn)向器故障分析與排除課件

培訓(xùn)室12023/10/64、全液壓轉(zhuǎn)向器故障分析與排除培訓(xùn)室12023/10/64、全液壓轉(zhuǎn)向器故障分析與排除培訓(xùn)室22023/10/6EnginePFCPumpReservoirFilterLTRPEFCFpLS6.泵嚴(yán)重磨損或損壞,容積效率低.產(chǎn)生的壓力和流量不能滿足系統(tǒng)要求.4.轉(zhuǎn)向柱與轉(zhuǎn)向器連接部位有干涉現(xiàn)象,裝配后給轉(zhuǎn)向器閥芯產(chǎn)生軸向或徑向力.2.優(yōu)先閥LS管扭結(jié)或太長(zhǎng).阻尼孔被堵塞或漏油.問(wèn)題1-轉(zhuǎn)向沉重

9.優(yōu)先閥主閥芯被異物卡滯或主彈簧彈性變小.7.機(jī)械連桿有干涉現(xiàn)象.8.整個(gè)轉(zhuǎn)向系統(tǒng)管路中有被堵塞的地方,形成嚴(yán)重節(jié)流,造成轉(zhuǎn)向沉.5.回油濾油器被堵塞.3.轉(zhuǎn)向柱本身?yè)p壞,轉(zhuǎn)動(dòng)力矩較大.1.轉(zhuǎn)向器入口單向閥損壞堵塞轉(zhuǎn)向器入口.培訓(xùn)室22023/10/6EnginePFCPumpR培訓(xùn)室32023/10/6問(wèn)題2–

蛇行，車輛不走直線.培訓(xùn)室32023/10/6問(wèn)題2–蛇行，車輛不走直線.培訓(xùn)室42023/10/6問(wèn)題2–蛇行，車輛不走直線.培訓(xùn)室42023/10/6問(wèn)題2–蛇行，車輛不走直線.培訓(xùn)室52023/10/6

ReservoirEnginePFCPumpFilterLTRPp1.檢查氣穴現(xiàn)象.2.泵吸油管及連接處進(jìn)氣,.3.油箱液面低4.油缸銷子松動(dòng)或桿彎曲.5.油缸內(nèi)泄漏6.雙向過(guò)載閥或雙向補(bǔ)油閥泄漏問(wèn)題2:蛇行（車輛不能在方向盤不動(dòng)時(shí)沿直線行駛）培訓(xùn)室52023/10/6ReservoirEngine培訓(xùn)室62023/10/6問(wèn)題3:車輛跑偏培訓(xùn)室62023/10/6問(wèn)題3:車輛跑偏培訓(xùn)室72023/10/6問(wèn)題3:車輛跑偏培訓(xùn)室72023/10/6問(wèn)題3:車輛跑偏培訓(xùn)室82023/10/6閉芯轉(zhuǎn)向器中位時(shí)向油缸口的泄漏.閉芯轉(zhuǎn)向器系統(tǒng)有輕微跑偏是正常.2.檢查油缸連接桿是否松動(dòng).3.油缸內(nèi)泄漏.4.兩輪胎氣壓差異較大.5.雙向過(guò)載閥或雙向補(bǔ)油閥有一側(cè)泄漏.6.油液中有空氣EngineFixedPumpReservoirFilterLTRPp檢查此部位問(wèn)題3:車輛跑偏的原因培訓(xùn)室82023/10/6閉芯轉(zhuǎn)向器中位時(shí)向油缸口Engin培訓(xùn)室92023/10/6EngineFixedPumpReservoirFilterLTRPp檢查油缸連接桿是否松動(dòng).2.油缸內(nèi)泄漏.3.雙向過(guò)載閥或雙向補(bǔ)油閥有一側(cè)泄漏.4.油液中有空氣.檢查此部位問(wèn)題4:方向盤滑移（方向盤慢轉(zhuǎn)不能使轉(zhuǎn)向輪同步動(dòng)作）培訓(xùn)室92023/10/6EngineFixedPumpR培訓(xùn)室102023/10/6活塞密封件損壞QinQout問(wèn)題4:方向盤滑移（方向盤慢轉(zhuǎn)不能使轉(zhuǎn)向輪同步動(dòng)作）油缸內(nèi)泄漏培訓(xùn)室102023/10/6活塞密封件損壞QinQout問(wèn)題培訓(xùn)室112023/10/6EngineFixedPumpReservoirFilterLTRPp10F-40F較長(zhǎng)時(shí)間不工作,轉(zhuǎn)向器元件與系統(tǒng)油液溫差較大.問(wèn)題5:熱沖擊(啟動(dòng)時(shí)短暫的轉(zhuǎn)向不靈活):培訓(xùn)室112023/10/6EngineFixedPump培訓(xùn)室122023/10/6系統(tǒng)中有空氣;油缸銷子松動(dòng);熱沖擊.4.優(yōu)先閥或分流閥主閥芯有卡滯現(xiàn)象;5.油缸有泄漏.6.泵效率低,造成壓力不穩(wěn).EngineFixedPumpReservoirFilterLTRPp問(wèn)題6:轉(zhuǎn)向不準(zhǔn)確培訓(xùn)室122023/10/6系統(tǒng)中有空氣;EngineFix培訓(xùn)室132023/10/6EngineFixedPumpReservoirFilterLTRPp系統(tǒng)中有空氣問(wèn)題7:轉(zhuǎn)向油缸蠕動(dòng)現(xiàn)象培訓(xùn)室132023/10/6EngineFixedPump培訓(xùn)室142023/10/6EngineFixedPumpReservoirFilterLTRPp1.轉(zhuǎn)向柱與方向盤螺母脫落2.轉(zhuǎn)向柱芯軸與轉(zhuǎn)向器閥芯聯(lián)結(jié)脫落3.油箱油面過(guò)低方向盤可自由轉(zhuǎn)動(dòng),沒(méi)有壓力感覺(jué)或轉(zhuǎn)向輪不動(dòng)問(wèn)題8

培訓(xùn)室142023/10/6EngineFixedPump培訓(xùn)室152023/10/6EngineFixedPumpReservoirFilterLTRPp1.雙向過(guò)載閥或雙向補(bǔ)油閥泄漏嚴(yán)重.2.油缸活塞泄漏嚴(yán)重方向盤輕松轉(zhuǎn)動(dòng),轉(zhuǎn)向輪不動(dòng)或動(dòng)作緩慢問(wèn)題9-培訓(xùn)室152023/10/6EngineFixedPump培訓(xùn)室162023/10/6EngineFixedPumpReservoirFilterLTRPp1.方向盤螺母松動(dòng)

2.轉(zhuǎn)向柱與轉(zhuǎn)向器連接磨損或損壞問(wèn)題10–方向盤空行程培訓(xùn)室162023/10/6EngineFixedPump培訓(xùn)室172023/10/6EngineFixedPumpReservoirFilterLTRPp問(wèn)題10–方向盤空行程3.油液中有空氣.4.雙向過(guò)載閥和雙向補(bǔ)油閥泄漏.培訓(xùn)室172023/10/6EngineFixedPump培訓(xùn)室182023/10/66.油缸泄露5.油缸與轉(zhuǎn)向連桿處磨損間隙大或損壞問(wèn)題10–

方向盤空行程培訓(xùn)室182023/10/66.油缸泄露5.油缸與培訓(xùn)室192023/10/6EngineFixedPumpReservoirFilterLTRPp2.較大的回油備壓可造成回位不好1、轉(zhuǎn)向柱與轉(zhuǎn)向器連接緊或干涉.方向盤停止轉(zhuǎn)動(dòng)手離開方向盤后,方向盤仍繼續(xù)轉(zhuǎn),或加油門時(shí)繼續(xù)轉(zhuǎn),這種現(xiàn)象多由此原因造成.3.大的污染顆粒進(jìn)入閥芯閥套之間,造成不能回位;4.轉(zhuǎn)向器彈簧片損壞或彈性較小.問(wèn)題11-

回位不好或跟轉(zhuǎn)培訓(xùn)室192023/10/6EngineFixedPump培訓(xùn)室202023/10/63.撥銷斷裂2.嚴(yán)重研傷

1.大而且硬的污染顆粒進(jìn)入定轉(zhuǎn)子幅中間4.熱沖擊(50度溫度差異時(shí))

問(wèn)題12-轉(zhuǎn)向器元件損壞培訓(xùn)室202023/10/63.撥銷斷裂2.嚴(yán)重研傷1培訓(xùn)室212023/10/6LTRP裝配關(guān)系錯(cuò)誤,拆修重裝時(shí),聯(lián)動(dòng)軸撥銷槽對(duì)應(yīng)的花鍵齒與轉(zhuǎn)子齒凹的內(nèi)花鍵齒凹對(duì)應(yīng).將進(jìn)油接到R或L口上,則轉(zhuǎn)向器向馬達(dá)一樣自轉(zhuǎn).問(wèn)題13-方向盤震蕩或自轉(zhuǎn)培訓(xùn)室212023/10/6LTRP裝配關(guān)系錯(cuò)誤,拆修重裝問(wèn)培訓(xùn)室222023/10/6LTRPR,L口接反左轉(zhuǎn)問(wèn)題14-轉(zhuǎn)向輪與方向盤方向相反培訓(xùn)室222023/10/6LTRPR,L口接反左轉(zhuǎn)問(wèn)題14培訓(xùn)室232023/10/6入口單向閥損壞

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入口單向閥的作用是防止油缸在外力作用下壓力高于入口壓力油液倒流,而產(chǎn)生方向盤反彈現(xiàn)象.問(wèn)題15-方向盤反彈培訓(xùn)室232023/10