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山東大學畢業(yè)設計(論文) I 摘 要 AGV 即自動導引小車,它集聲、光、電、計算機技術(shù)于一體,綜合了當今科技領域先進 的理論和應用技術(shù)。廣泛應用在柔性制造系統(tǒng)和自動化工廠中,具有運輸效率高、節(jié)能、工 作可靠、能實現(xiàn)柔性運輸?shù)仍S多優(yōu)點,極大的提高生產(chǎn)自動化程度和生產(chǎn)效率。 本文在分析研究國內(nèi)外 AGV 現(xiàn)狀與發(fā)展的基礎上,設計了兩后輪獨立驅(qū)動的自動導引小 車,其主要工作內(nèi)容包括:小車機械傳動設計、直流伺服電機的選擇、AT89C51 單片機控制 系統(tǒng)硬件電路、運動學分析、控制系統(tǒng)軟件設計及圓弧插補程序。所設計的小車能夠?qū)崿F(xiàn)自 主運行、運動軌跡(圓弧、直線)的控制等功能,達到了沿著設定的路線行駛。 關鍵詞:自動導引小車,單片機控制,設計,PWM 技術(shù) 山東大學畢業(yè)設計(論文) II Abstract The AGV namely Automatic Guided Vehicle, it collect sound, the light, the electricity, the computer technology in a body, and synthesizes the technical domain advanced theory and the application technology. It widespread applied in the flexible manufacturing system and the factory automation, and has the merits of high transportation efficiency, the energy conservation, the work reliable, the flexible transportation. It enormously enhanced production automaticity and production efficiency. Based on the analysis of the domestic and foreign AGV present situation and its development foundation, AGV with two wheel independent drive is designed. The content of the paper includes: design of mechanical structure and drive of the car, the choice of direct current servo motor, the hardware electric circuit of AT89C51 control system, the kinematic analysis, the software design of control system and the procedure of interpolation the circular arc. The designed car can realize the functions of independent movement, the path (circular arc, straight line) control and so on, and has achieved to travel along the hypothesis route. Keyword: Automatic Guided Vehicle, singlechip computer control,Design, PWM 山東大學畢業(yè)設計(論文) 3 目 錄 摘 要 .............................................................I Abstract........................................................II 第一章 緒論 .....................................................1 1.1 AGV 自動導引小車簡介 ...........................................1 1.2 AGV 自動導引小車的分類 .........................................1 1.3 AGV 小車充電保護裝置 1 1.4 國內(nèi)外研究現(xiàn)狀及發(fā)展趨勢 .......................................2 第二章 機械部分設計 ..........................................3 2.1 設計任務 ......................................................3 2.2 確定機械傳動方案 ..............................................3 2.3 直流伺服電動機的選擇 ..........................................4 2.4 聯(lián)軸器的設計 ..................................................7 2.5 蝸桿傳動設計 8 2.6 軸的設 計11 2.7 滾動軸承選擇計 算18 第三章 控制系統(tǒng)的設計 ..................................... 23 3.1 控制系統(tǒng)總體方案 .............................................23 3.2 鑒向 .........................................................24 3.3 計數(shù)的擴展 ...................................................25 3.4 中斷的擴展 ...................................................26 3.5 數(shù)摸轉(zhuǎn)換器的選擇 .............................................27 山東大學畢業(yè)設計(論文) 4 3.6 電機驅(qū)動芯片選擇 .............................................29 3.7 運動學分析 ...................................................33 3.8 控制軟件的設計 ...............................................34 第四章 AGV 運行環(huán)境的安全防護措施 42 結(jié)論 .............................................................43 致謝 .............................................................44 參考文獻(References) .....................................45
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