3356 三足式離心機設(shè)計,三足式,離心機,設(shè)計 - 0 -目 錄緒 論 ..........................................................................................................................................1第 1 章 材料選擇 ....................................................................................................................51.1 轉(zhuǎn)鼓的材料 .........................................................................................................................51.2 主軸的材料 .........................................................................................................................71.3 油箱和機殼的材料 ..............................................................................................................8第 2 章 轉(zhuǎn)鼓的機械計算 ........................................................................................................92.1 圓筒形轉(zhuǎn)鼓的鼓壁質(zhì)量引起的應力 ......................................................................................92.2 圓筒形轉(zhuǎn)鼓內(nèi)的篩網(wǎng)質(zhì)量引起的應力 ................................................................................112.3 圓筒形轉(zhuǎn)鼓內(nèi)的物料質(zhì)量引起的應力 ................................................................................112.4 圓筒形轉(zhuǎn)鼓的蓋子質(zhì)量引起的應力 ....................................................................................132.5 轉(zhuǎn)鼓壁的強度計算 ............................................................................................................132.5.1 開孔轉(zhuǎn)鼓的計算 ..........................................................................................................142.5.1 轉(zhuǎn)鼓壁厚計算 .............................................................................................................142.5.2 轉(zhuǎn)鼓的剛度分析 ..........................................................................................................15第 3 章 主軸計算 ..................................................................................................................163.1 概述 .................................................................................................................................163.2 軸的結(jié)構(gòu)設(shè)計 ...................................................................................................................163.3 軸的強度計算 ...................................................................................................................173.3.1 按許用切應力計算 ......................................................................................................173.3.2 按許用彎曲應力計算 ...................................................................................................183.3.3 安全系數(shù)校核計算 ......................................................................................................183.3.4 計算主軸受力 .............................................................................................................183.3.5 計算支承反力 .............................................................................................................193..3.6 畫軸彎矩圖 ................................................................................................................193.3.7 畫軸轉(zhuǎn)矩圖 .................................................................................................................203.3.8 許用應力 ....................................................................................................................203.3.9 畫當量彎矩圖 .............................................................................................................213.3.10 校核軸徑...................................................................................................................21第 4 章 臨界轉(zhuǎn)速計算 ..........................................................................................................214.1 概述 .................................................................................................................................224.2 轉(zhuǎn)子的振動和臨界轉(zhuǎn)速 .....................................................................................................224.3 計算臨界轉(zhuǎn)速的解析法 .....................................................................................................23- 1 -4.3.1 特征值法 ....................................................................................................................244.3.2 影響系數(shù)法 .................................................................................................................274.3.3 軸的斷面慣性矩 ..........................................................................................................344.3.4 分別計算各部分的質(zhì)量 ...............................................................................................344..3.5 計算各部分對質(zhì)心 m 的離心力矩 ...............................................................................354.3.6 計算影響因數(shù) .............................................................................................................36第 5 章 傳動系統(tǒng)計算 ..........................................................................................................375.1 帶傳動計算 .......................................................................................................................375.1.1 定 V 帶型號和帶輪直徑 ..............................................................................................385.1.2 計算帶長 ....................................................................................................................385.1.3 求中心距和包角 ..........................................................................................................385.1.4 求帶根數(shù) ....................................................................................................................385.1.5 求軸上載荷 .................................................................................................................385.2 軸承、鍵的選擇和校核 .....................................................................................................395.3 電動機的選擇 ...................................................................................................................40參考文獻..................................................................................................................................41致 謝 ........................................................................................................................................42