【正文】 l importance to the performance of the oil pump:stand or fall of the hydraulic design affected the performance and efficiency of the centrifugal pump。Bearing designing be closely bound up with normal running o the centrifugal pump’s hydraulic loss,corrosion control also are better import. Key words: centrifugal pump 。 oile 。 bearing. IV I 目錄 1 緒 論 ........................................................................................................................................... 1 設(shè)計背景 .................................................................................................................................. 1 總的技術(shù)發(fā)展 .......................................................................................................................... 1 關(guān)鍵技術(shù)及現(xiàn)狀 ...................................................................................................................... 1 泵的密封 ....................................................................................................................... 1 材料技術(shù) ....................................................................................................................... 1 注要研究方向 .......................................................................................................................... 2 研究意義 .................................................................................................................................. 2 2 確定泵型 ............................................................................................................................................. 3 確定泵的總體結(jié)構(gòu)設(shè)計 ........................................................................................................... 3 泵吸入口和排出口的確定 ....................................................................................................... 3 確定比轉(zhuǎn)數(shù) ns: ......................................................................................................................... 3 原動機的選擇： ...................................................................................................................... 4 最小軸頸的初步計算 ............................................................................................................... 4 3 泵葉輪的設(shè)計 ..................................................................................................................................... 6 葉輪主要參數(shù)的確定 ............................................................................................................... 6 確定葉輪各參數(shù) ...................................................................................................................... 6 葉輪進口直徑 D0的計算 ............................................................................................ 7 葉輪出口直徑 D2的初步計算 ...................................................................................... 7 葉輪出口寬度 b2 的計算和選擇 .................................................................................. 7 確定葉輪入口寬度 b1 ................................................................................................... 8 葉片厚度 ....................................................................................................................... 8 葉片數(shù)的計算與選擇 .................................................................................................... 9 水利分析 ....................................................................................................................... 9 葉輪外徑 D2的第一次精確計算 ................................................................................ 9 葉輪繪型 ................................................................................................................................ 11 4 壓出室及吸入室 的設(shè)計 .................................................................................................................... 13 吸水室的結(jié)構(gòu)設(shè)計 ................................................................................................................. 13 壓出室的結(jié)構(gòu)設(shè)計 ................................................................................................................. 14 壓水室的作用和要求 .................................................................................................. 14 任意斷面的螺旋壓水室的設(shè)計 .................................................................................. 14 5 離心泵徑向力、軸向力的平衡及平衡裝置的設(shè)計 ........................................................................ 19 離心泵徑向力的平衡及平衡裝置的設(shè) 計計算 ..................................................................... 19 徑向力的平衡 ............................................................................................................. 19 徑向力的計算 ............................................................................................................. 19 離心泵中軸向力的平衡及計算 ............................................................................................. 20 軸向力的計算 ............................................................................................................. 20 軸向力的的平衡 .......................................................................................................... 22 6 離心泵中主要零部件的設(shè)計 ............................................................................................................ 23 軸的機構(gòu)設(shè)計及校核 ............................................................................................................. 23 軸的機構(gòu)設(shè)計 ............................................................................................................. 23 軸的校核 ................................................................................................................................ 24 II 求軸上的載荷 .......................................................................................