空氣壓縮機(jī)的設(shè)計(jì)【含CAD圖紙、說明書】

摘 要空氣壓縮機(jī)是一種用來壓縮空氣、提高氣體壓力或輸送氣體的機(jī)械，是將原動(dòng)機(jī)的機(jī)械轉(zhuǎn)化為壓力能的工作機(jī)，簡稱空壓機(jī)。而本次設(shè)計(jì)的活塞壓縮機(jī)是依靠活塞在氣缸內(nèi)作往復(fù)運(yùn)動(dòng)而實(shí)現(xiàn)工作容積的周期性變化來工作的。本次設(shè)計(jì)的為角度式V型壓縮機(jī)，分為兩列，其中一列為一、二級(jí)氣缸壓縮，另外一列為一、三級(jí)氣缸壓縮，兩列夾角為90，平衡性達(dá)到最佳。活塞式壓縮機(jī)是利用活塞在汽缸中往復(fù)運(yùn)動(dòng)使容積縮小而提高氣體濃度、壓力的。相比于其它形式的壓縮機(jī)有許多優(yōu)點(diǎn)，如：效率高；適應(yīng)性強(qiáng)，特別是用于排氣量小的情況；涉及的壓力范圍廣，低壓和高壓都適用。在實(shí)際的生產(chǎn)、生活中，此型號(hào)的壓縮機(jī)的應(yīng)用范圍比較廣泛。本設(shè)計(jì)的內(nèi)容包括壓縮機(jī)整體的設(shè)計(jì)、曲軸箱的設(shè)計(jì)、曲軸的設(shè)計(jì)。主要通過熱力計(jì)算和動(dòng)力計(jì)算來初步確定壓縮機(jī)的整體設(shè)計(jì)。同時(shí)，對(duì)曲軸箱、曲軸進(jìn)行設(shè)計(jì)，并繪出壓縮機(jī)的總裝配圖，曲軸箱、軸承蓋、曲軸、軸承座，風(fēng)葉輪等的零部件設(shè)計(jì)。關(guān)鍵詞：壓縮機(jī)；活塞；曲軸箱；曲軸AbstractThe air compressor is a machine used to compress air, improve the gas pressure or gas transportation, is the original motivation of mechanical work into pressure energy, referred to as the compressor. While the piston compressor in this design is to rely on the piston in the cylinder for reciprocating motion and periodic variation of the volume of work to work.The design for the angle type V type compressor, divided into two columns, one tier one or two cylinder compression, the other as a, three cylinder, two angle is 90 , balance to achieve the best. Piston type compressor is the use of a piston in a cylinder of reciprocating motion to decrease in volume and improve the gas concentration, pressure. Compared to other forms of compressor has many advantages, such as: high efficiency; good adaptability, especially for exhaust volume small; pressure range wide, low pressure and high pressure are applicable. In the actual production, life, the scope of application of this type of compressor is widely.The design includes the overall design, the compressor crankcase design, the design of crankshaft. Through the calculation of thermodynamic calculation and dynamic to preliminary determine the overall design of the compressor. At the same time, the design of the crankcase, crankshaft, and the general assembly drawing of the compressor, crankshaft box, bearing cover, crankshaft, bearing, impeller and other parts design.Key words: compressor; piston; crankshaft; the crankshaft目 錄摘 要ABSTRACT目 錄1 緒論11.1 本課題的研究內(nèi)容和意義11.2 壓縮機(jī)的工作原理12壓縮機(jī)總體設(shè)計(jì)22.1 結(jié)構(gòu)方案選擇22.2 級(jí)數(shù)的選擇和各級(jí)壓力比的分配22.2.1級(jí)數(shù)的選擇22.2.2 各級(jí)壓力比的分配32.3 壓縮機(jī)轉(zhuǎn)數(shù)和行程的確定33 壓縮機(jī)的熱力計(jì)算53.1 初步確定各級(jí)公稱壓力和溫度53.1.1 初步確定各級(jí)公稱壓力53.1.2 計(jì)算絕熱指數(shù)k53.1.3 計(jì)算各級(jí)排氣溫度T63.2 計(jì)算各級(jí)排氣系數(shù)63.2.1容積系數(shù)63.2.1 壓力系數(shù)83.2.2 溫度系數(shù)83.2.3 氣密系數(shù)93.3 計(jì)算干氣系數(shù)和抽氣系數(shù)103.3.1 計(jì)算干氣系數(shù)103.3.2 計(jì)算抽氣系數(shù)113.4 壓縮機(jī)各級(jí)行程容積的確定113.5 壓縮機(jī)各級(jí)氣缸直徑的確定123.6 修正各級(jí)公稱壓力和溫度133.6.1 確定圓整后各級(jí)實(shí)際行程容積133.6.2 確定各級(jí)壓力修正系數(shù)及133.6.3 修正后各級(jí)公稱壓力和壓力比133.6.4 修正后各級(jí)排氣溫度143.7 計(jì)算活塞力143.7.1 計(jì)算氣缸內(nèi)實(shí)際吸排氣壓力143.7.2 計(jì)算各列的活塞力153.8 計(jì)算軸功率，選取電機(jī)153.8.1 計(jì)算各級(jí)指示功率153.8.2 計(jì)算軸功率173.8.3 驅(qū)動(dòng)機(jī)功率，選取電動(dòng)機(jī)174 壓縮機(jī)的動(dòng)力計(jì)算184.1 壓縮機(jī)中的作用力194.2 作各級(jí)氣缸示功圖204.3 作往各列氣缸復(fù)慣性力圖224.4 作各列氣缸綜合活塞力圖244.5 作各列氣缸切向力圖264.6 確定飛輪矩305 機(jī)體的設(shè)計(jì)325.1 機(jī)體的結(jié)構(gòu)設(shè)計(jì)325.1.1 機(jī)體結(jié)構(gòu)設(shè)計(jì)的基本原則325.1.2 機(jī)體主要結(jié)構(gòu)尺寸的確定325.1.3 機(jī)體的壁厚325.1.4 機(jī)體加強(qiáng)筋的布置325.1.5 連接螺栓的布置335.2螺栓的強(qiáng)度計(jì)算335.3 機(jī)體的基本計(jì)算要求335.3.1 對(duì)材料的要求335.3.2 對(duì)毛坯件的要求335.3.3 對(duì)熱處理的要求345.3.4 對(duì)機(jī)械加工的要求345.4 其它346 曲軸基本尺寸的設(shè)計(jì)356.1 曲軸基本結(jié)構(gòu)356.1.1 曲軸結(jié)構(gòu)設(shè)計(jì)356.1.2 曲頸和曲柄356.1.3 過渡圓角366.1.4 油孔366.1.5 曲軸的軸向定位366.1.6 油封376.1.7 軸端376.1.8 平衡鐵376.2 曲軸結(jié)構(gòu)設(shè)計(jì)376.2.1 曲軸設(shè)計(jì)基本原則376.2.2 曲軸基本尺寸的設(shè)計(jì)386.2.3 曲軸平衡的計(jì)算386.2.4 曲軸受力分析396.2.5 曲軸基本技術(shù)要求397 結(jié)論與不足417.1 結(jié)論417.2 不足之處41致謝42參考文獻(xiàn)43本人畢業(yè)（論文）設(shè)計(jì)題目