【正文】 支承面以下較深處的挖掘作業(yè)。關鍵詞：裝載機、發(fā)動機、活塞、變速箱 Keyword: loaders engine piston gearbox2 / 661 / 66目錄第一章緒論 ................................................................................................................................................1 裝 載 機 行 業(yè) 的 發(fā) 展 .......................................................................................................................2 中 國 裝 載 機 行 業(yè) 的 發(fā) 展 ....................................................................................................2 輪 式 裝 載 機 的 發(fā) 展 趨 勢 ......................................................................................................3 裝載機的分類 ..................................................................................................................................4 裝載機的結構組成 ..........................................................................................................................5 主要部件 ..................................................................................................................................6 工作裝置 ..................................................................................................................................6 裝載機特殊工作裝置 ..............................................................................................................7第二章 ZL50 型裝載機結構 和原理 ........................................................................................................9 組成與結構特點 ..............................................................................................................................9 發(fā)動機的啟動與停止 ....................................................................................................................12 裝載機主要參數(shù)總體幾何參數(shù) ....................................................................................................13第三章 ZL50 型裝 載機發(fā)動機故障診斷與修復 ...................................................................................19 起動困難診斷與修復 ....................................................................................................................19 發(fā)動機在冬季起動為什么更困難 ........................................................................................19 發(fā)動機起動時可以轉動，不能起動（無煙）的診斷與處理 ............................................20 發(fā)動機熱起動困難的診斷與處理 ........................................................................................21 發(fā)動機起動時，曲軸不能轉動的機械故障診斷與修復 ....................................................22 從排氣管排煙情況診斷發(fā)動機故障與排除 ................................................................................24 發(fā)動機起動困難或不能起動，排氣管大量排白煙的診斷與處理 ....................................24 發(fā)動機起動困難或不能起動，排氣管大量冒灰白煙的診斷與處理 ................................24 發(fā)動機起動困難或不能起動，排氣管大量冒黑煙的診斷與處理 ....................................25 發(fā)動機低速正常且有短時高速，排煙過少的診斷與處理 ................................................26 發(fā)動機低速正常但無高速，排煙過少的診斷與修理 ........................................................26 發(fā)動機動力不足，排灰白煙的診斷與處理 ........................................................................27 發(fā)動機動力不足，排濃黑煙的診斷與處理 ........................................................................28 發(fā)動機動力不足，排藍煙的診斷與處理 ............................................................................29 從速度和聲音診斷發(fā)動機的故障與排除 ....................................................................................30 發(fā)動機無怠速的診斷與處理 ................................................................................................30 怠速過高的診斷與處理 ........................................................................................................31 怠速不穩(wěn) ................................................................................................................................32 發(fā)動機運轉中突然熄火 ........................................................................................................33 發(fā)動機運轉中緩慢熄火 ........................................................................................................332 / 66 發(fā)動機工作粗暴 ....................................................................................................................34 發(fā)動機“游車” ....................................................................................................................35 發(fā)動機“飛車”時的應急措施及處理方法 ........................................................................37 發(fā)動機抖動 ............................................................................................................................3發(fā)動機不能熄火 ...............................................................................................................39 發(fā)動機異響的故障診斷與排除 ....................................................................................................39 活塞敲缸 ................................................................................................................................40 活塞環(huán)異響 ............................................................................................................................41 活塞銷異響 ............................................................................................................................42 連桿軸承異響 ........................................................................................................................42 曲軸軸承異響 ........................................................................................................................44 拉缸響 ....................................................................................................................................44 發(fā)動機著火敲擊聲 ................................................................................................................45 氣門腳響 ................................................................................................................................47 氣門彈簧響 ............................................................................................................................47 氣門挺桿異響 .......................................................................................................