挖掘機(ji)(ji)維修控(kong)制(zhi)式電控(kong)分(fen)配(pei)泵(beng)1-柴(chai)油(you)機(ji)(ji)轉速傳感器2-溢油(you)控(kong)制(zhi)閥3-噴油(you)正(定) 時(shi)傳感器4- 柴(chai)油(you)機(ji)(ji)5-噴油(you)正時(shi)控(kong)制(zhi)閥

單體泵指一個問題汽缸作為一個沒有油泵，這里的油泵指的是利用高壓油泵，或稱為噴油泵。挖掘機維修最重要的三個參數：操作重量（質量），發動機功率和鏟斗斗容。維修挖掘機第一臺液壓挖掘機由法國波克蘭工廠發明成功。由于液壓技術的應用，20世紀40年代有了在拖拉機上配裝液壓反鏟地懸掛式挖掘機。修理挖掘機常見(jian)的(de)(de)挖掘(jue)機(ji)(ji)(ji)結構(gou)(gou)包括，動(dong)(dong)力(li)裝(zhuang)置(zhi)，工作裝(zhuang)置(zhi)，回轉機(ji)(ji)(ji)構(gou)(gou)，操縱機(ji)(ji)(ji)構(gou)(gou)，傳動(dong)(dong)機(ji)(ji)(ji)構(gou)(gou)，行走機(ji)(ji)(ji)構(gou)(gou)和輔助(zhu)設(she)(she)施等。挖掘(jue)機(ji)(ji)(ji)設(she)(she)備維修電(dian)控(kong)(kong)單(dan)體泵(beng)(beng)式(shi)噴(pen)(pen)油(you)(you)(you)(you)系(xi)統(tong)研究(jiu)主(zhu)要(yao)內(nei)容包括對(dui)于一(yi)個企業帶有出油(you)(you)(you)(you)控(kong)(kong)制(zhi)閥(fa)的(de)(de)高壓油(you)(you)(you)(you)泵(beng)(beng)、機(ji)(ji)(ji)械噴(pen)(pen)油(you)(you)(you)(you)器(qi)(qi)、連接方式(shi)所(suo)需的(de)(de)燃油(you)(you)(you)(you)管(guan)路(lu)、濾清系(xi)統(tong)，其基本經濟(ji)結構(gou)(gou)發展(zhan)特點分析(xi)如下: 將油(you)(you)(you)(you)泵(beng)(beng)柱(zhu)(zhu)塞(sai)運(yun)動(dong)(dong)驅(qu)動(dong)(dong)與柴油(you)(you)(you)(you)機(ji)(ji)(ji)配氣機(ji)(ji)(ji)構(gou)(gou)提供所(suo)需凸輪軸整合為一(yi)體，從而可以(yi)實現設(she)(she)計油(you)(you)(you)(you)泵(beng)(beng)到(dao)噴(pen)(pen)油(you)(you)(you)(you)器(qi)(qi)的(de)(de)燃油(you)(you)(you)(you)管(guan)路(lu)最短化(hua)。柴油(you)(you)(you)(you)機(ji)(ji)(ji)技術工作時(shi)，通過提高柴油(you)(you)(you)(you)機(ji)(ji)(ji)周圍(wei)環境安裝(zhuang)的(de)(de)眾多信息傳感(gan)器(qi)(qi)網絡檢(jian)測柴油(you)(you)(you)(you)機(ji)(ji)(ji)運(yun)行狀態，對(dui)噴(pen)(pen)人汽(qi)缸(gang)的(de)(de)噴(pen)(pen)油(you)(you)(you)(you)量和噴(pen)(pen)油(you)(you)(you)(you)正(zheng)時(shi)正(zheng)常進行更加精(jing)確管(guan)理控(kong)(kong)制(zhi)。電(dian)控(kong)(kong)單(dan)體泵(beng)(beng)見(jian)圖1-4-2。當高壓電(dian)磁閥(fa)不(bu)通電(dian)時(shi)，錐(zhui)閥(fa)打開回油(you)(you)(you)(you)口，柱(zhu)(zhu)塞(sai)向上(shang)運(yun)動(dong)(dong)壓油(you)(you)(you)(you)時(shi)，柱(zhu)(zhu)塞(sai)上(shang)腔的(de)(de)油(you)(you)(you)(you)液(ye)流回油(you)(you)(you)(you)箱。當高壓電(dian)磁閥(fa)通電(dian)時(shi)，錐(zhui)閥(fa)關(guan)閉回油(you)(you)(you)(you)口，柱(zhu)(zhu)塞(sai)上(shang)腔的(de)(de)油(you)(you)(you)(you)液(ye)壓向關(guan)閉一(yi)些時(shi)間不(bu)同長短即(ji)可得(de)到(dao)實現噴(pen)(pen)油(you)(you)(you)(you)量控(kong)(kong)制(zhi)。電(dian)控(kong)(kong)泵(beng)(beng)噴(pen)(pen)嘴(zui)內(nei)部系(xi)統(tong)

電(dian)(dian)(dian)子控制單元(yuan)注入器(qi)系統省去高(gao)壓(ya)油管(guan)，泵送柱塞和噴嘴(zui)（噴射器(qi)）的(de)(de)整體單泵電(dian)(dian)(dian)子控制系統。圖1-4-3，圖1-4-4中所(suo)示(shi)電(dian)(dian)(dian)控泵噴嘴(zui)結構中所(suo)示(shi)的(de)(de)電(dian)(dian)(dian)子控制單元(yuan)注入器(qi)系統。電(dian)(dian)(dian)控泵噴嘴(zui)安裝在所(suo)述氣(qi)缸蓋噸，由于(yu)沒有(you)高(gao)壓(ya)管(guan)，從而消除了(le)壓(ya)力波和高(gao)壓(ya)油燃(ran)料(liao)壓(ya)縮的(de)(de)影(ying)響，大大減少了(le)高(gao)壓(ya)的(de)(de)體積，注射壓(ya)力高(gao)達200MPa的(de)(de)。共軌電(dian)(dian)(dian)子控制燃(ran)料(liao)噴射系統的(de)(de)典型部件

供油(you)(you)(you)(you)(you)泵的作用(yong)是將低壓(ya)控(kong)制燃油(you)(you)(you)(you)(you)的油(you)(you)(you)(you)(you)壓(ya)迅(xun)速升(sheng)高(gao)，將其儲存(cun)在(zai)共(gong)軌組件(jian)(jian)內，等待一個電控(kong)系統單(dan)元的噴射技術指令。供油(you)(you)(you)(you)(you)工作壓(ya)力(li)(li)我們(men)可(ke)以同時通(tong)過學(xue)習壓(ya)力(li)(li)高(gao)度限制器就會(hui)進行研(yan)究設定。轉(zhuan)(zhuan)子式供油(you)(you)(you)(you)(you)泵的結構設計見圖1-5-3，轉(zhuan)(zhuan)子式供油(you)(you)(you)(you)(you)泵由驅動(dong)(dong)(dong)軸(zhou)、柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)、進油(you)(you)(you)(you)(you)閥(fa)(fa)、出(chu)油(you)(you)(you)(you)(you)閥(fa)(fa)、電磁斷油(you)(you)(you)(you)(you)閥(fa)(fa)、壓(ya)力(li)(li)需要(yao)調節閥(fa)(fa)(調壓(ya)閥(fa)(fa)) 和殼(ke)體部(bu)分組成。驅動(dong)(dong)(dong)軸(zhou)由柴油(you)(you)(you)(you)(you)機作為驅動(dong)(dong)(dong)，其偏(pian)心(xin)影(ying)響凸輪有3 個，分別分析(xi)驅動(dong)(dong)(dong)3 個柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)，驅動(dong)(dong)(dong)軸(zhou)轉(zhuan)(zhuan)周(zhou)，3 個柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)各上下對于(yu)運動(dong)(dong)(dong)1次。當柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)下行時，燃油(you)(you)(you)(you)(you)從吸油(you)(you)(you)(you)(you)管經單(dan)向閥(fa)(fa)、進油(you)(you)(you)(you)(you)閥(fa)(fa)吸人，當柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)不斷克服(fu)這些(xie)彈簧使用(yong)彈力(li)(li)上行時，治壓(ya)將進油(you)(you)(you)(you)(you)閥(fa)(fa)進入關閉，產生的高(gao)壓(ya)油(you)(you)(you)(you)(you)頂開出(chu)油(you)(you)(you)(you)(you)閥(fa)(fa)，從高(gao)壓(ya)以及(ji)油(you)(you)(you)(you)(you)管表面壓(ya)出(chu)。柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)業回閥(fa)(fa),出(chu)油(you)(you)(you)(you)(you)閥(fa)(fa),進油(you)(you)(you)(you)(you)閥(fa)(fa),密(mi)封件(jian)(jian),柱(zhu)(zhu)(zhu)塞(sai)(sai)(sai)腔,泵油(you)(you)(you)(you)(you)作用(yong)元件(jian)(jian),高(gao)壓(ya)設備接頭(tou),接向共(gong)軌,偏(pian)心(xin)固定凸輪,驅動(dong)(dong)(dong)軸(zhou).

轉子式(shi)供(gong)油(you)泵(beng)的結(jie)構

針封球和平衡(heng)彈簧。共軌壓(ya)力傳感器安裝在共軌總(zong)(zong)成上(shang)(shang)，以檢查共軌總(zong)(zong)成中的(de)(de)(de)油(you)壓(ya)。當油(you)壓(ya)過(guo)(guo)高時(shi)(shi)，電(dian)(dian)控單元控制壓(ya)力調節(jie)閥打開(kai)安全閥。挖掘機(ji)在修理電(dian)(dian)磁(ci)斷油(you)閥時(shi)(shi)，電(dian)(dian)樞上(shang)(shang)的(de)(de)(de)一(yi)根針打開(kai)進(jin)(jin)油(you)閥，使(shi)供油(you)過(guo)(guo)程中人(ren)們抽(chou)出的(de)(de)(de)油(you)不會被壓(ya)縮，人(ren)們抽(chou)出的(de)(de)(de)油(you)通(tong)過(guo)(guo)進(jin)(jin)油(you)網返回到低壓(ya)油(you)路。高壓(ya)不會在柱塞腔內積聚。電(dian)(dian)磁(ci)關(guan)閉(bi)閥根據柴油(you)機(ji)的(de)(de)(de)工(gong)作狀(zhuang)態(tai)間歇工(gong)作，調節(jie)供油(you)量，減少了(le)柴油(you)機(ji)的(de)(de)(de)功率損失。