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- 1 - 西北工業大學 機械原理課程設計說明書 -- 包裝機推包機構運動簡圖與傳動系統設計 指導老師 : 班 級 : 學生姓名 : 學 號: 組 員: 目 錄 - 2 - 一、設計題目和要求 ··············································3 二、設計方案的選定 ··············································3 三、機構的尺寸設計 ··············································8 1、曲柄滑塊結構的尺寸計算· ··································8 2、凸輪尺寸設計·············································9 四、電動機的選擇及傳動方案的設計 ············