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黑龍江工程學院本科生畢業(yè)設計 目 錄 要摘…………………………..……………………………………………………Ⅰ ABSTRACT……..…………………………………………………………………Ⅱ 第 1 章緒論 .................................................................................................................................1 1.1 剪板機分類 ......................................................................................................1 1.2 剪板機工作原理 ..............................................................................................2 第 2 章選擇方案對比 .........................................................................................................4 2.1 液壓傳動方案 ..................................................................................................4 2.2 機械傳動方案 ..................................................................................................4 2.2.1 凸輪機構方案 ...........................................................................................5 2..2.2 曲柄滑塊機構方案. .................................................................................5 2.3 剪板機結構設計描述 ......................................................................................5 2.4 本章小結 ..........................................................................................................9 第 3 章總體傳動方案 ..........................................................................................................10 3.1 電動機的選擇 ................................................................................................10 3.1.1 電動機類型結構形式的選擇 .................................................................10 3.1.2 電動機功率的選擇 ................................................................................10 3.1.3 計算傳動裝置運動和動力參數(shù) ...........................................................12 3.2 本章小結 .........................................................................................................12 第 4 章帶傳動的設計及計算 ..............................................................................14 4.1 確定計算功率 ................................................................................................14 4.1 選擇帶型 .........................................................................................................14 4.3 確定小帶輪的基準直徑 .................................................................................14 4.3.1 初選小帶輪的基準直徑 ........................................................................14 4.3.2 計算帶的速度 ........................................................................................14 4.3.3 計算從動輪的基準直徑 .......................................................................15 4.4 確定中心距 a 和帶輪的基準長度 .................................................................15 黑龍江工程學院本科畢業(yè)設計 4.5 驗算主動輪上的包角 .....................................................................................16 4.6 確定帶的根數(shù) .................................................................................................16 4.7 確定帶的預緊力 .............................................................................................16 4.8 計算帶傳動作用在軸上的壓軸力 .................................................................17 4.9 帶輪結構的設計 .............................................................................................17 4.9.1 小帶輪的結構設計 .................................................................................17 4.9.2 大帶輪的結構設計 .................................................................................19 5.0 本章小結 .........................................................................................................20 第 5章軸的設計 .....................................................................................................21 5.1 主動軸設計 ....................................................................................................21 5.1.1 軸的材料 .................................................................................................21 5.1.2 軸頸的最小許用值 ..................................................................................21 5.1.3 確定軸上的零件的裝配方案 ..................................................................22 5.1.4 軸上零件定位 ..........................................................................................22 5.1.5 軸各段直徑和長度的確定 ......................................................................22 5.1.6 繪制主軸上零件的裝配圖及軸的結構圖 ..............................................22 5.1.7 軸的強度校核計算 ..................................................................................22 5.2 從動軸的設計 ..................................................................................................22 5.2.1 材料選擇 ..................................................................................................22 5.2.2 軸頸的最小許用值 ..................................................................................22 5.2.3 確定軸上零件的裝配方案 ......................................................................22 5.2.4 繪制從動軸上零件的裝配圖的結構圖 ..................................................22 5.2.5 軸的強度校核 ..........................................................................................22 5.3 本章小結 .........................................................................................................25 第 6章齒輪設計 .....................................................................................................26 6.1 選定齒輪類型、精度等級、材料及齒數(shù) .....................................................26 6.1.1 齒輪類型的選擇 ......................................................................................26 6.1.2 齒輪材料的選擇 ......................................................................................26 6.1.3 選取精度等級 ..........................................................................................26 6.1.4 選擇齒數(shù) ..................................................................................................26 6.2 按齒面接觸強度設計 ......................................................................................26 6.2.1 確定公式內容計算數(shù)值 ..........................................................................26 黑龍江工程學院本科畢業(yè)設計 6.2.2 計算 ..........................................................................................................27 6.3 按齒根彎曲強度設計 ......................................................................................28 6.3.1 確定公式內容計算數(shù)值 ..........................................................................29 6.3.2 設計計算 ..................................................................................................29 6.4 幾何尺寸計算 .................................................................................................30 6.4.1 計算分度圓直徑 ......................................................................................30 6.4.2 計算中心距 ..............................................................................................30 6.4.3 計算齒輪寬度 ..........................................................................................30 6.5 驗算 .................................................................................................................30 6.6 結構設計及繪制齒輪零件圖 .........................................................................31 6.6.1 對小齒輪的結構設計 ..............................................................................31 6.6.2 對大齒輪的機構設計 ..............................................................................31 6.7 本章小結 .........................................................................................................33 第 7章曲柄滑塊機構設計 ..................................................................................34 7.1 材料的選擇 ......................................................................................................34 7.2 確定曲柄滑塊機構桿件長度 .........................................................................34 7.3 結構設計 .........................................................................................................35 7.4 強度校核 .........................................................................................................35 7.5 電動機校核 .....................................................................................................36 7.6 建立曲柄滑塊機構的數(shù)學模型 .....................................................................36 7.6.1 建立位移方程 ..........................................................................................37 7.6.2 建立速度方程 ..........................................................................................37 7.6.3 建立加速度方程 ......................................................................................37 7.7 本章小結 .........................................................................................................38 結論 ..........................................................................................................39 參考文獻 ..................................................................................................40 致謝 ............................................................................................................................41