【正文】 encies, sanitation vehicle quantities are far from reach construction ministry urban environment, sanitation standards CJJ 272021 car/million prescribed standards. Allocation Now urban population, if 375m according to standard requirements, quantities gap, but current vehicles a 40 percent more than 80% are overworked, cannot satisfy the actual needs. Thus, the city garbage every year in demand, and in more than 13,000 car increasing year by year, subject involves the sealed truck belongs to the new special vehicle to its own environmental protection in our country has good have widely application. This paper introduces the design of miniature sealed truck that describes in the design process on the problems and solutions, for different structure parison, garbage sealedbid rational selection, and design a second chassis sealed carriage and hydraulic lifting mechanism, choose the correct hydraulic cylinder to ensure the normal operation of lifting mechanism. Keywords: Miniature Sealed Truck。 Special Vehicle。Tipping i 目 錄 摘要 ........................................................................................................................................ I Abstract ............................................................................................................................... II 第 1 章 緒論 ....................................................................................................................... 1 微型密封式垃圾車設(shè)計(jì)的意義和目的 ....................................................................1 微型密封式垃圾車的設(shè)計(jì)意義 ......................................................................1 微型密封式垃圾車的設(shè)計(jì)目的 ......................................................................1 微型密封式垃圾車的研究現(xiàn)狀與發(fā)展 ....................................................................1 微型密封式垃圾車的發(fā)展前景 ......................................................................1 密封式垃圾車不同結(jié)構(gòu)形式的比較 ........................................................................2 設(shè)計(jì)主要內(nèi)容 ...........................................................................................................2 第 2 章 長安微型密封式垃圾車的總體設(shè)計(jì) .......................................................... 4 整車主要參數(shù)的確定 ................................................................................................4 尺寸參數(shù) ..........................................................................................................4 二類底盤的選擇以及參數(shù)的確定 ..................................................................4 車廂的總體設(shè)計(jì)及質(zhì)量參數(shù)確定 ...........................................................................5 車廂的尺寸確定 ..............................................................................................5 整車質(zhì)量參數(shù)確定 ..........................................................................................5 車廂承載最大垃圾密度 ..................................................................................6 副車架的計(jì)算 ............................................................................................................6 縱梁彎曲應(yīng)力計(jì)算 .........................................................................................6 局部扭轉(zhuǎn)應(yīng)力計(jì)算 ..........................................................................................8 車架扭轉(zhuǎn)時(shí)縱梁應(yīng)力計(jì)算 .............................................................................8 車架載荷分析 .................................................................................................8 車架彎曲強(qiáng)度的計(jì)算 ......................................................................................9 車架扭轉(zhuǎn)應(yīng)力的計(jì)算 ...................................................................................12 第 3 章 液壓舉升機(jī)構(gòu)設(shè)計(jì) ..........................................................................................16 舉升機(jī)構(gòu)設(shè)計(jì)思路 .................................................................................................16 初步設(shè)計(jì) .................................................................................................................16 ii 舉升機(jī)構(gòu)結(jié)構(gòu)型式的分類及特點(diǎn) ..........................................................................16 舉升機(jī)構(gòu)型式的分析與選擇 ..................................................................................18 舉升機(jī)構(gòu)的具體設(shè)計(jì) ..............................................................................................18 確定舉升安全系數(shù)確、定車箱的轉(zhuǎn)軸點(diǎn)、舉升點(diǎn) .....................................18 油缸安裝位置的選擇 .....................................................................................19 車廂舉升點(diǎn)計(jì)算 ............................................................................................19 最大舉升角的確定 ........................................................................................20 油缸總行程 L 的確定 ....................................................................................20 連桿組合式舉升機(jī)構(gòu)計(jì)算 .............................................................................21 液壓缸的選擇 .........................................................................................................26 車廂加強(qiáng)設(shè)計(jì) .........................................................................................................29 舉升機(jī)構(gòu)設(shè)計(jì)小結(jié) .................................................................................................29 第 4 章 取力器的選取 ...................................................................................................30 概述 .........................................................................................................................30 取力器的類型及其特點(diǎn) ..........................................................................................30 取力器的選取 ..........................................................................................................31 取力器的安裝方式 ..................................................................................................32 取力器的輸出連接 ..................................................................................................32 第 5 章 整車性能分析