【正文】 the mixing system is concrete mixer JS500. And concrete mixer JS500 is pulsory horizontal axis in a concrete mixer, pulsory mixing concrete mixer can not only dry hard concrete, but also stirred lightweight aggregate concrete, concrete can achieve a strong role in stirring, stirring very uniform, high productivity, quality Low is a new type of domestic mixer with two pact structure, good looks. Mixing device as a core part of the model and directly affects the whole quality and efficiency of the concrete mixing. According to the structural characteristics of twinshaft mixer and analysis of the structural characteristics of the mixing device, determine the design of the mixing system and plete the mixing tube, stirring shaft and stirring blade design. First, through the calculate and determine the overall size mixing tube, determine the structure of the board, the choice to strengthen. Then, establish the size of the device and calculation of mixing power, then check axis and the key. Finally the shaft sealing device design and its parts and checked bearing life. Keyword: concretemixer， mixing system, the mixing tube, mixing shaft 目錄 緒論 ........................................................................................................................ 1 攪拌機概述 .................................................................................................... 1 設計原則 ........................................................................................................ 2 整機總體設計要求 ........................................................................................ 2 原始數(shù)據(jù) ........................................................................................................ 2 設計的主要內(nèi)容 .................................................................................................... 3 攪拌裝置 ........................................................................................................ 3 攪拌傳動系統(tǒng) ................................................................................................ 5 攪拌筒的設計 ........................................................................................................ 7 設計總說明 ..................................................................................................... 7 攪拌筒的總體設計 ......................................................................................... 7 容積利用系數(shù) ...................................................................................... 7 長徑比的確定 ...................................................................................... 7 長寬比確定 .......................................................................................... 8 計算得出攪拌筒的直徑、長度、寬度 .............................................. 8 選擇材料 ........................................................................................................ 8 端板的設計 .................................................................................................... 8 端板的結構確定 .................................................................................. 9 端板留安裝法蘭的孔 ........................................................................ 10 加強筋結構和位置的確定 ................................................................ 10 筒體的設計 .................................................................................................. 11 筒體總長度的確定 ............................................................................ 11 筒體內(nèi)徑和外徑的確定 .................................................................... 11 襯板的設計 ................................................................................................... 12 端面襯板的設計 ................................................................................. 12 圓弧襯板的設計 .................................................