【正文】 檢測(cè)危險(xiǎn)工況保證工作安全。 （ 4） 產(chǎn)品方向 重點(diǎn)發(fā)展 35m以下作業(yè)高度的車(chē)型，著重于輕量化和小型化，并提高產(chǎn)品的安全性、可靠性和人性化，以適應(yīng)我國(guó)城 市空間和場(chǎng)地狹窄、道路地面承重能力差異大等特點(diǎn)。 產(chǎn)品和技術(shù) 目前我國(guó)高空作業(yè)車(chē)年銷(xiāo)售量很低，與國(guó)外相比，產(chǎn)品技術(shù)水平差距較大，產(chǎn)品結(jié)構(gòu)單一， 產(chǎn)品制造工藝落后，產(chǎn)品可靠性差等。大部分專(zhuān)用汽車(chē)企業(yè)采用開(kāi)發(fā)軟件進(jìn)行模塊化仿真設(shè)計(jì)，如 AutoCAD、 Pro／ E、 CATIA等，大大提高了研發(fā)質(zhì)量和縮短了開(kāi)發(fā)周期。 Turntable and hydraulic parts also principles want to calculate and checking. Key words: Aloft work vehicle； Aloft work arm； Turntable； Hydraulic system；Modification design 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì) 目 錄 摘 要 ............................................................................................................................... I Abstract ................................................................................................................................ II 第 1 章 緒 論 .............................................................................................................. 1 概述 .......................................................................................................................... 1 高空作業(yè)車(chē)的發(fā)展現(xiàn)狀 .......................................................................................... 2 專(zhuān)用車(chē)的現(xiàn)狀 ............................................................................................... 2 我國(guó)高空作業(yè)車(chē)的現(xiàn)狀和發(fā)展 ................................................................... 2 高空作業(yè)車(chē)的組成 .................................................................................................. 5 工作裝置 ....................................................................................................... 5 金屬結(jié)構(gòu) ....................................................................................................... 5 控制系統(tǒng) ....................................................................................................... 5 動(dòng)力傳動(dòng)裝置 ............................................................................................... 5 本課題所研究的任務(wù) .............................................................................................. 6 本課題研究的意義 .................................................................................................. 6 第 2 章 確定設(shè)計(jì)方案 ..................................................................................................... 8 總體設(shè)計(jì)要求 .......................................................................................................... 8 動(dòng)作要求 .................................................................................................................. 8 技術(shù)性能要求 .......................................................................................................... 8 總體設(shè)計(jì)方案 .......................................................................................................... 8 確定執(zhí)行元件的形式 .............................................................................................. 9 整體設(shè)計(jì)結(jié)構(gòu)圖 ...................................................................................................... 9 本章小結(jié) .................................................................................................................. 9 第 3 章 底盤(pán)的選擇 ....................................................................................................... 10 高空作業(yè)車(chē)底盤(pán)的類(lèi)型 ........................................................................................ 10 底盤(pán)的選擇 ............................................................................................................ 10 本章小結(jié) .................................................................................................................11 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì) 第 4 章 高空作業(yè)車(chē)臂的設(shè)計(jì) ..................................................................................... 12 材料的選擇 ............................................................................................................ 12 計(jì)算上、下臂的長(zhǎng)度 ............................................................................................ 12 確定液壓缸鉸點(diǎn)的位置 ........................................................................................ 13 確定上臂液壓缸鉸點(diǎn)的位置 ..................................................................... 13 確定下臂液壓缸鉸點(diǎn)的位置 ..................................................................... 13 上臂截面尺寸的確定 ............................................................................................ 13 對(duì)上臂進(jìn)行受力分析 ................................................................................. 14 計(jì)算上臂截面尺寸 ..................................................................................... 15 對(duì)上臂進(jìn)行強(qiáng)度校核 ................................................................................. 16 下臂截面尺寸的確定 ............................................................................................ 17 對(duì)下臂進(jìn)行受力分析 ................................................................................. 17 計(jì)算下臂的截面尺寸 ................................................................................. 19 對(duì)下臂進(jìn)行強(qiáng)度校核 ................................................................................. 20 本章小結(jié) ................................................................................................................ 21 第 5 章 高空作業(yè)車(chē)轉(zhuǎn)臺(tái)結(jié)構(gòu)的設(shè)計(jì) ....................................................................... 22 高空作業(yè)車(chē)轉(zhuǎn)臺(tái)總體結(jié)構(gòu)設(shè)計(jì) ............................................................................ 22 轉(zhuǎn)臺(tái)的受力分析 .................................................................................................... 27 轉(zhuǎn)臺(tái)的自重 ................................................................................................. 27 轉(zhuǎn)臺(tái) 受到的其余的力 ................................................................................. 29 回轉(zhuǎn)支承裝置的計(jì)算 ............................................................................................ 29 回轉(zhuǎn)支承的計(jì)算載荷 ................................................................................. 29 轉(zhuǎn)盤(pán)式回轉(zhuǎn)支承裝置的計(jì)算 .........................................................