【正文】 stract III The race apparatus is the family and apparatus always on the alert of gymnasium, and the simplest one in the bodybuilding apparatus of the current family, it is the best choice of the family building up body device . The experts believe the race apparatus market will take high price products as the leading factor in the future. Low price products sell too good, price in recent years had the tendency to rise. Pay attention to consumers with fashionable life and think the price of the race apparatus is the natural thing above 1000 . dollars. These signs indicate , the race apparatus will still increase continuously in the future. Have used the threedimensional entity software SOLIDWORKS to carry on the entity modeling of the part in the course of designing, design with the ensemble architecture . Design and include the support , the base shelf , the cylinder , run board, is it bring to run, design consult domestic and international every brand structure and design, carry on accurate calculation by anization to transmission, and design stress shock attenuation systematic importance and run the static proof functionality of the board especially, the design enables persons who run to experience the strength of the race apparatus. Because of the particularity of the race apparatus, safe problem is worth paying close attention toer, how to use the race apparatus correctly, it is as important as maintenance of the race apparatus. Key word: Overall structure； Main transfer machinery； Damping system； Run board；Run , machine use； Muti_function design IV 多功能跑步機設(shè)計 目 錄 緒論 ................................................................ 1 第 1章 總體方案設(shè)計 ................................................ 2 . 基本功能 .................................................. 2 . 構(gòu)造設(shè)計 .................................................... 2 . 功能原理的確定 .............................................. 3 小結(jié) ............................................................ 3 第 2章 電動機類型與參數(shù)的選擇 ....................................... 4 . 類型功率選擇 ................................................ 4 . 技術(shù)參數(shù) .................................................... 4 小結(jié) ............................................................ 5 第 3章 傳動機構(gòu)設(shè)計 ................................................ 6 . 設(shè)計步 驟及參數(shù)選擇 ........................................... 6 . 多楔帶帶輪結(jié)構(gòu)和尺寸選擇 ...................................... 9 . 帶傳動的張緊裝置的選擇 ...................................... 11 小結(jié) ........................................................... 12 第 4章 外型結(jié)構(gòu)設(shè)計 ............................................... 13 . 基架的設(shè)計 ................................................. 13 . 支架的設(shè)計 ................................................. 14 . 前后罩 .................................................... 15 小結(jié) ........................................................... 16 第 5章 前后滾筒 ................................................... 16 . 軸承的計算 ................................................. 16 . 軸結(jié)構(gòu)的設(shè)計 ............................................... 17 . 強度計算 ................................................... 18 . 滾筒要求 ................................................... 19 小結(jié) ........................................................... 20 第 6章 跑步板及跑步帶設(shè)計 .......................................... 20 . 跑步板 .................................................... 20 . 跑步帶 .................................................... 21 . 跑帶調(diào)整：兩個螺栓調(diào)整法 ..................................... 21 . 跑臺潤滑油的填加 ............................................ 22 小結(jié) ........................................................... 23 第 7章 避震系統(tǒng)的設(shè)計 ............................................. 23 小結(jié) ........................................................... 24 第 8章 多功能設(shè)計 ................................................. 25 . 扭腰盤設(shè)計 ................................................. 25 . 連接結(jié)構(gòu)設(shè)計 ............................................... 26 . 旋轉(zhuǎn)結(jié)構(gòu)設(shè)計 ............................................... 27 . 仰臥起坐架的設(shè)計 ............................................ 28 V 小結(jié) ........................................................... 29 第 9章 使用和維護 ........