雙螺桿壓縮機(jī)的設(shè)計(jì)
1.9萬(wàn)字 45頁(yè)

包括中英文翻譯及設(shè)計(jì)圖



【摘要】雙螺桿壓縮機(jī)是一種比較新穎的壓縮機(jī)，因其可靠性高、操作維修方便、動(dòng)力平衡性好、適應(yīng)性強(qiáng)等優(yōu)點(diǎn)，而廣泛地應(yīng)用于礦山、化工、動(dòng)力、冶金、建筑、機(jī)械、制冷等工業(yè)部門。雙螺桿壓縮機(jī)已經(jīng)超過(guò)所有工業(yè)壓縮機(jī)的50 ％，其市場(chǎng)份額超過(guò)80 ％，今后其市場(chǎng)份額還將繼續(xù)擴(kuò)大?？梢?，研究雙螺桿壓縮機(jī)具有十分重要的意義。本課題主要是設(shè)計(jì)通用的噴油雙螺桿空氣壓縮機(jī)，采用單邊不對(duì)稱擺線-銷齒圓弧型型線，陰、陽(yáng)轉(zhuǎn)子齒數(shù)比為6：4。設(shè)計(jì)新型轉(zhuǎn)子型線，目的是使接觸線長(zhǎng)度、泄漏三角形面積和封閉余隙容積3者達(dá)到最優(yōu)化設(shè)計(jì)，以進(jìn)一步提高雙螺桿壓縮機(jī)的機(jī)械性能。重點(diǎn)研究的是雙螺桿壓縮機(jī)的轉(zhuǎn)子型線設(shè)計(jì)、幾何特性、受力分析、熱力學(xué)計(jì)算。

【關(guān)鍵詞】雙螺桿壓縮機(jī) 轉(zhuǎn)子型線 嚙合線 齒間容積


The design of twin screw compressor
[Abstract] The twin-screw compressor is a kind of newly emerging compressor. Because of its high reliability, easy repair, good balance and good adaptability etc, and widely applied to such industrial departments as mine, chemical industry, power, metallurgy, architecture, machinery, refrigeration, etc. By designing the project, the volumetric efficiency is 70%, the compressed temperature is more 80℃。It is very important to design and research a twin-screw compressor in industrial. The project is to design a universal twin-screw air compressor, and to adopt single side asymmetric swept line unilaterally and dowel tooth circular rotor profile. There are six lobes on the female rotor and four lobes on the male rotor. The aim of designing a new rotor profile is to optimize the contact line length, blowhole area and clearance volume. That can improve the mechanical performance of a twin-screw compressor further. The project is mainly to research a twin-screw compressor rotor profile, geometry characteristic, mechanics analysis, thermodynamics calculation

[Keywords] A twin-screw compressor, rotor profile, mesh curve, tooth space volume.




目 錄
畢業(yè)設(shè)計(jì)(論文)任務(wù)書…………………………………………………………………..Ⅰ
開題報(bào)告………………………………………………………………………………….Ⅱ
指導(dǎo)教師審查意見……………………………………………………………………….Ⅲ
評(píng)閱教師評(píng)語(yǔ)…………………………………………………………………………….Ⅳ
答辯會(huì)議記錄…………………………………………………………………………….Ⅴ
中文摘要………………………………………………………………………………….Ⅵ
外文摘要………………………………………………………………………………….Ⅶ
前言…………………………………………………………………………………. ….1
1選題背景……………………………………………………………………………. ….3
1.1研究雙螺桿壓縮機(jī)的目的和意義……………………………………………3
1.2雙螺桿壓縮機(jī)的特點(diǎn)和應(yīng)用前景……………………………………………3
1.3國(guó)內(nèi)外雙螺桿壓縮機(jī)研究的進(jìn)展……………………………………………5
1.4雙螺桿壓縮機(jī)基本結(jié)構(gòu)和工作原理…………………………………………6
2雙螺桿壓縮機(jī)的轉(zhuǎn)子型線設(shè)計(jì)……………………………………………………. ….9
2.1轉(zhuǎn)子型線設(shè)計(jì)原則……………………………………………………………9
2.2型線方程和嚙合線方程………………………………………………………10
2.3單邊不對(duì)稱擺線-銷齒圓弧型線………………………………………… … 10
3雙螺桿壓縮機(jī)螺桿尺寸的確定……………………………………………………. …23
4幾何特性……………………………………………………………………………. …23
4.1齒間面積和面積利用系數(shù)……………………………………………………23
4.2齒間容積及其變化過(guò)程………………………………………………………24
4.3扭角系數(shù)及內(nèi)容積比…………………………………………………………27
5雙螺桿壓縮機(jī)的熱力學(xué)計(jì)算……………………………………………………. …28
5.1內(nèi)壓力比………………………………………………………………………28
5.2容積流量及容積效率…………………………………………………………28
5.3軸功率…………………………………………………………………………29
5.4電動(dòng)機(jī)功率……………………………………………………………………31
5.5電功率…………………………………………………………………………31
6雙螺桿壓縮機(jī)的結(jié)構(gòu)設(shè)計(jì)……………………………………………………………31
7雙螺桿壓縮機(jī)的力學(xué)計(jì)算……………………………………………………………31
7.1徑向力的計(jì)算…………………………………………………………………32
7.2軸承支反力的計(jì)算……………………………………………………………34
7.3軸向力的計(jì)算…………………………………………………………………34
8雙螺桿壓縮機(jī)的吸、排氣孔口設(shè)計(jì)…………………………………………………35
8.1吸氣孔口………………………………………………………………………36
8.2排氣孔口………………………………………………………………………37
9主要零部件設(shè)計(jì)和選材……………………………………………………………. .38
10雙螺桿壓縮機(jī)壓力脈動(dòng)計(jì)算………………………………………………………39
結(jié)束語(yǔ)………………………………………………………………………………. …43
參考文獻(xiàn)…………………………………………………………………………. …. .44
附錄………………………………………………………………………………. …. .Ⅸ



參考文獻(xiàn)
[1] 劉小平，王平，平行雙螺桿機(jī)構(gòu)的發(fā)展及應(yīng)用，輕工機(jī)械
[2] 吳華根，邢子文，束鵬程，淺析雙螺桿制冷壓縮機(jī)技術(shù)，機(jī)電產(chǎn)品市場(chǎng)