新型組合式選粉機(jī)總體及分級(jí)部分設(shè)計(jì)【含10張CAD圖紙+PDF圖】

喜歡就充值下載吧。。資源目錄里展示的文件全都有，，請(qǐng)放心下載，，有疑問(wèn)咨詢QQ:414951605或者1304139763 ======================== 喜歡就充值下載吧。。資源目錄里展示的文件全都有，，請(qǐng)放心下載，，有疑問(wèn)咨詢QQ:414951605或者1304139763 ======================== 一、設(shè)計(jì)（論文）內(nèi)容 1、選粉機(jī)總體方案的確定 2、分級(jí)工藝相關(guān)參數(shù)的計(jì)算 3、選粉機(jī)總體設(shè)計(jì) 4、選粉機(jī)分級(jí)部分結(jié)構(gòu)設(shè)計(jì) 二、設(shè)計(jì)（論文）依據(jù) 1、分級(jí)粉體 2、風(fēng)量：3000m3/min 3、產(chǎn)量：120~200t/h 4、電機(jī)功率：100~300kw 三、技術(shù)要求 1、機(jī)械設(shè)計(jì)應(yīng)保證其功能良好、使用可靠、維護(hù)方便； 2、零件結(jié)構(gòu)設(shè)計(jì)要選擇合理的毛坯型式和材料，并盡可能的采用標(biāo)準(zhǔn)件和通用件，并 具有良好的工藝性。 四.畢業(yè)設(shè)計(jì)（論文）物化成果的具體內(nèi)容及要求 1、圖紙工作量 新型組合式選粉機(jī)總裝圖 A0、分級(jí)體部裝圖 A1、鼠籠零件圖 A1，反射棱錐體 部裝圖 A3，相關(guān)的零件一套，并折合成0號(hào)圖樣，不得少于3張。 2、設(shè)計(jì)說(shuō)明書要求 （1）、說(shuō)明書中的總體設(shè)計(jì)及結(jié)構(gòu)設(shè)計(jì)要進(jìn)行多方案比較； （2）、對(duì)主要零件進(jìn)行強(qiáng)度和剛度計(jì)算與校核； （3）、說(shuō)明書要有中英文摘要、書寫格式應(yīng)符合學(xué)院的統(tǒng)一要求，并不得少于10000 字； 3、其它要求 設(shè)計(jì)圖樣應(yīng)符合國(guó)家標(biāo)準(zhǔn)中的有關(guān)規(guī)定，并全部用計(jì)算機(jī)繪圖。 五. 畢業(yè)設(shè)計(jì)（論文）進(jìn)度計(jì)劃 起訖日期 工作內(nèi)容 備 注 04.02.16-04.02.27 畢業(yè)實(shí)習(xí) 04.03.01-04.03.12 方案論證 04.03.12-04.05.03 設(shè)計(jì)階段 04.05.03-04.05.20 編寫說(shuō)明書 04.05.20-04.05.24 畢業(yè)設(shè)計(jì)預(yù)答辯 04.05.25-04.06.12 修改設(shè)計(jì)資料 04.06.13-04.06.14 復(fù)查設(shè)計(jì)資料 04.06.16-04.06.18 畢業(yè)答辯 04.06.19-04.06.20 材料整理裝檔 六. 主要參考文獻(xiàn)： 1．吳一善．粉碎學(xué)概論．武漢：武漢工業(yè)大學(xué)出版社，1993 2．許林發(fā)．建筑材料機(jī)械設(shè)計(jì)（一）．武漢：武漢工業(yè)大學(xué)出版社，1990 3．王峰，王皓．篩分機(jī)械．北京：機(jī)械工業(yè)出版社，1998.7 4．潘孝良．硅酸鹽工業(yè)機(jī)械過(guò)程及設(shè)備．武漢：武漢工業(yè)大學(xué)出版社，1993　 5．葉達(dá)森．粉碎與制成．北京：中國(guó)建筑工業(yè)出版社，1992 6．陳全德，曹辰等．新型干法水泥生產(chǎn)技術(shù)．北京：中國(guó)建筑工業(yè)出版社，1987 7．武漢建筑材料工業(yè)學(xué)院等學(xué)校．水泥生產(chǎn)機(jī)械設(shè)備．北京：中國(guó)建筑工業(yè)出版社， 1979 8．武漢建筑材料工業(yè)學(xué)院等學(xué)校．建筑材料機(jī)械及設(shè)備．北京：中國(guó)建筑工業(yè)出版社， 1980 9．朱昆泉，許林發(fā)．建材機(jī)械工程手冊(cè)．武漢：武漢工業(yè)大學(xué)出版社，2000.7 10．楮瑞卿．建材通用機(jī)械與設(shè)備．武漢：武漢工業(yè)大學(xué)出版社，1996.9 　　 七、其他 4 畢業(yè)論文任務(wù)書 課題： 新型組合式選粉機(jī)總體及分級(jí)部分設(shè)計(jì) 專 業(yè) 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 學(xué) 生 姓 名 黃 鴻 飛 班 級(jí) 材機(jī)001 學(xué) 號(hào) B0012107 指 導(dǎo) 教 師 姜煜林 教 研 室 主 任 姜煜林 系 主 任 葛 友 華 發(fā) 放 日 期 2004.1 畢業(yè)設(shè)計(jì)開題報(bào)告 課題： 新型組合式選粉機(jī)總體及分級(jí)部分設(shè)計(jì) 專 業(yè) 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 學(xué)生姓名 黃 鴻 飛 班 級(jí) B材機(jī)001 學(xué) 號(hào) B0012107 指導(dǎo)教師 姜煜林 完成日期 2004.3 課題名稱：新型組合式選粉機(jī)總體及分級(jí)部分設(shè)計(jì) 課題類型： □ 工程設(shè)計(jì)型 □ 工程技術(shù)研究型 □ 軟件開發(fā) □理論研究 （請(qǐng)?jiān)趯?duì)應(yīng)類型前面打√） 一、課題簡(jiǎn)介（課題含義、課題來(lái)源、需要解決的問(wèn)題、已知條件）： 課題含義：將O－Sepa型選粉機(jī)精確分級(jí)的原理結(jié)合旋風(fēng)式選粉機(jī)的旋風(fēng) 筒的收集功能以及通過(guò)式選粉機(jī)的粗粉分離功能而組成的新型組合式選粉機(jī),能 處理較大量的含塵氣體，系統(tǒng)中料路、氣路合一，使整個(gè)系統(tǒng)更簡(jiǎn)單, 特別是在 烘干粉磨系統(tǒng)和風(fēng)掃磨系統(tǒng)中,可省去為處理大量含塵氣體而建立的粗粉分離 器系統(tǒng)，其優(yōu)越性能更加顯著。選粉機(jī)自帶低阻高效旋風(fēng)收塵器，可將80％的 合格成品收集下來(lái)，減輕了下一級(jí)收塵器的處理壓力和工作負(fù)荷，使系統(tǒng)的運(yùn) 轉(zhuǎn)率更高，投資更省，并且，產(chǎn)品細(xì)度調(diào)節(jié)范圍廣，控制簡(jiǎn)單，改變細(xì)度不停 機(jī)。 課題來(lái)源：根據(jù)選粉機(jī)當(dāng)前國(guó)內(nèi)外發(fā)展情況以及企業(yè)實(shí)際需求，而確定該 課題。 需要解決的問(wèn)題：如何將三種選粉機(jī)優(yōu)點(diǎn)有機(jī)的結(jié)合在一起。 已知條件：1、分級(jí)粉體 2、風(fēng)量：3000m3/min 3、產(chǎn)量：120~200t/h 4、電機(jī)功率：100~300kw 二、本課題國(guó)內(nèi)外發(fā)展概況： 圈流粉磨的廣泛應(yīng)用,促進(jìn)了選粉機(jī)的發(fā)展。從選粉機(jī)的性能方面看,可將其分為三代產(chǎn)品。 第一代——普通撒料式空氣選粉機(jī) 這種選粉機(jī)是以給柯(Gayco)型和斯特蒂文特(Sturtevant)型為代表。它們均為空氣在機(jī)內(nèi)循環(huán),利用物料顆粒的離心力和重力不同進(jìn)行分級(jí)的,所以有人把它們稱為內(nèi)部循環(huán)式的離心式選粉機(jī)。 　 第二代——旋風(fēng)式選粉機(jī) 60年代初,西德維達(dá)格(Wedag)公司為解決第一代空氣在內(nèi)部循環(huán)的空氣選粉機(jī)存在的問(wèn)題,首先發(fā)明了帶多個(gè)小旋風(fēng)筒的空氣動(dòng)態(tài)選粉機(jī),其典型代表就是普通的旋風(fēng)式選粉機(jī)。這種選粉機(jī)的特點(diǎn)是空氣在機(jī)內(nèi)外循環(huán) 。 第三代——高效選粉機(jī) 1979年日本小野田公司開發(fā)了O－SEPA選粉機(jī)，不僅保留了旋風(fēng)選式粉機(jī)外循環(huán)的優(yōu)點(diǎn)，而且采用籠型轉(zhuǎn)子平面螺旋氣流選粉原理，從而大幅度提高了選粉效率。以它為代表的籠式選粉機(jī)稱為高效選粉機(jī)，也被稱為第三代選粉機(jī)。 由于O－SEPA型選粉機(jī)優(yōu)點(diǎn)突出，一些著名的水泥設(shè)備制造公司紛紛參照其工作原理，竟相開發(fā)了各自的第三代選粉機(jī)，如丹麥（F.L.Smidth）公司開發(fā)的Sepax型高效選粉機(jī)；洪保（KHD）公司開發(fā)的SKH型和ZUB型型高效選粉機(jī)等等。這些選粉機(jī)的工作原理與O－SEPA型選粉機(jī)相同，但結(jié)構(gòu)上各有特點(diǎn)。 目前國(guó)內(nèi)大多數(shù)的水泥生產(chǎn)廠家所用的選粉分級(jí)系統(tǒng)為離心選粉機(jī)、旋風(fēng)式選粉機(jī)，而新建的水泥生廠線以配用第三代高效選粉機(jī)為主。 附參考文獻(xiàn)： 1 葉達(dá)森．粉碎與制成．北京：中國(guó)建筑工業(yè)出版社，1992 2 吳一善．粉碎學(xué)概論．武漢：武漢工業(yè)大學(xué)出版社，1993 3 許林發(fā)．建材機(jī)械工程手冊(cè)．武漢：武漢工業(yè)大學(xué)出版社，2000.7 4 王峰，王皓．篩分機(jī)械．北京：機(jī)械工業(yè)出版社，1998.7 5 楮瑞卿．建材通用機(jī)械與設(shè)備．武漢：武漢工業(yè)大學(xué)出版社，1996.9 6 許林發(fā)．建筑材料機(jī)械設(shè)計(jì)．武漢：武漢工業(yè)大學(xué)出版社，1990 7 武漢建筑材料工業(yè)學(xué)院等學(xué)校．建筑材料機(jī)械及設(shè)備．北京：中國(guó)建筑工業(yè) 出版社，1980 8 武漢建筑材料工業(yè)學(xué)院等學(xué)校．水泥生產(chǎn)機(jī)械設(shè)備．北京：中國(guó)建筑工業(yè)出 版社，1979 9 陳全德，曹辰等．新型干法水泥生產(chǎn)技術(shù)．北京：中國(guó)建筑工業(yè)出版社，1987 10 潘孝良． 硅酸鹽工業(yè)機(jī)械過(guò)程及設(shè)備． 武漢：武漢工業(yè)大學(xué)出版社，1993 三、完成本課題的總體設(shè)計(jì)思路（本課題的技術(shù)路線簡(jiǎn)介、總體方案論證、對(duì)本課題完成情況的預(yù)計(jì)） （—）總體設(shè)計(jì)概述：新型組合式選粉機(jī)是籠式高效選粉機(jī)和粗粉分離器以及旋風(fēng)收塵器的緊湊組合, 主體可分為上下兩部分，上部為籠式高效選粉機(jī)，為分級(jí)核心；下部相當(dāng)于粗粉分離器，用于初步處理含塵氣體。主體外圍均布多個(gè)旋風(fēng)收塵器，用于收集成品細(xì)粉。可將其構(gòu)造進(jìn)一步細(xì)劃為：分級(jí)核心鼠籠；安裝在選粉室外部的可調(diào)導(dǎo)風(fēng)葉及固定它們的殼體部分；收集粗粉的下部灰斗；收集細(xì)粉的管道、旋風(fēng)筒；主軸和驅(qū)動(dòng)主軸旋轉(zhuǎn)的傳動(dòng)裝置；總體原理為：從磨機(jī)來(lái)的高濃度含塵空氣由下部風(fēng)管進(jìn)入選粉機(jī)，經(jīng)內(nèi)錐體整流后沿外錐體與內(nèi)錐體之間的環(huán)形通道減速上升，其中的粗粉經(jīng)重力沉降后沿外錐體邊壁滑入粗粉收料筒實(shí)現(xiàn)重力分選，重力分選后的空氣在導(dǎo)風(fēng)葉的導(dǎo)流和轉(zhuǎn)子的旋轉(zhuǎn)作用下，在導(dǎo)風(fēng)葉和轉(zhuǎn)子之間形成穩(wěn)定的水平渦流選粉區(qū)。粉磨后的物料從選粉機(jī)進(jìn)料口喂入，其分選原理與O-SEPA選粉機(jī)相同。只是分選后細(xì)小輕微的顆粒隨氣流被吸入內(nèi)部流經(jīng)配風(fēng)室分四路進(jìn)入旋風(fēng)收塵器，大部分成品細(xì)粉被分離出來(lái)，收塵后的空氣從旋風(fēng)收塵器上的排風(fēng)管排出，進(jìn)入下一級(jí)收塵設(shè)備。粗重顆粒則下落經(jīng)內(nèi)錐體匯集到粗粉收料筒，返回磨機(jī)再磨。 （二）設(shè)計(jì)思路及主要技術(shù)路線： 1、確定總體結(jié)構(gòu)的組成、框架及各部分的功能與工作目標(biāo)； 2、根據(jù)設(shè)計(jì)任務(wù)書的要求，初步計(jì)算各工藝參數(shù)和結(jié)構(gòu)參數(shù)； 3、設(shè)計(jì)機(jī)體分級(jí)部分的結(jié)構(gòu)及主要零件結(jié)構(gòu)； 4、檢查其加工工藝性和裝配工藝性； 5、保證與其它部分的接口合理； 6、根據(jù)設(shè)計(jì)結(jié)果，修正設(shè)計(jì)參數(shù)。 （三）課題完成情況預(yù)計(jì)： 1、物化成果 2、完成時(shí)間 總裝圖一張 04.4.15 部裝圖一張 04.4.20 相關(guān)的主要零件一套 04.4.30 整理完說(shuō)明書 04.5.20 四、課題進(jìn)度安排 04.02.16-04.02.27 畢業(yè)實(shí)習(xí) 04.03.01-04.03.12 方案論證 04.03.12-04.05.03 設(shè)計(jì)階段 04.05.03-04.05.20 編寫說(shuō)明書 04.05.20-04.05.24 畢業(yè)設(shè)計(jì)預(yù)答辯 04.05.25-04.06.12 修改設(shè)計(jì)資料 04.06.13-04.06.14 復(fù)查設(shè)計(jì)資料 04.06.16-04.06.18 畢業(yè)答辯 04.06.19-04.06.20 材料整理裝檔 指導(dǎo)導(dǎo)師意見: 指導(dǎo)教師（簽名） 2004年 月 日 教研室意見： 教研室主任（簽字） 2004年 月 日 系部意見： 部門（公章） 系主任（簽名） 2004年 月 日 鹽城工學(xué)院 本科畢業(yè)設(shè)計(jì)說(shuō)明書 2004 摘 要 新型組合式選粉機(jī)從功能上兼具粗粉分離器和選粉機(jī)性能，變系統(tǒng)氣、料兩路走為一路走，實(shí)現(xiàn)了簡(jiǎn)化系統(tǒng)的目的。本設(shè)計(jì)在機(jī)體的分級(jí)結(jié)構(gòu)中將渦流分級(jí)、慣性分級(jí)、離心分級(jí)原理學(xué)科學(xué)地組合在一起，物料在選粉機(jī)內(nèi)不同部位經(jīng)過(guò)了幾次不同方式的反復(fù)分選、清洗、分離徹底，且從結(jié)構(gòu)上消除了風(fēng)速梯度，保證了分選區(qū)氣流場(chǎng)穩(wěn)定，因而可以達(dá)到較高的選粉效率。其自帶一組低阻高效旋風(fēng)收塵器，可將80％的合格成品收集下來(lái)，大大減輕了下一級(jí)收塵器的處理壓力和工作負(fù)荷，使系統(tǒng)的運(yùn)轉(zhuǎn)率更高，投資更省。而且采用下部進(jìn)風(fēng)的型式，使系統(tǒng)阻力更小，工藝布置更緊湊。 關(guān)鍵詞：新型組合式選粉機(jī)、粗粉分離器、分級(jí) Abstract New Combined Separator has Thick Powder Separator simultaneously with Separator performance, changing systematic gas and material from two road into one, and have realized easier systematic purpose. It is designed in organism grade the structural eddy current of lieutenant general grade, inertia grade, centrifugation grade principle subject study land make up together. Stock in Separator different positions have passed the relapse of some of different waives grading, wash, split thorough. It has eliminated the gradient of wind speed just from structure, have guaranteed the grading district site of air current stability and may reach higher choose powder efficiency. Taking a group of low resistance efficient whirlwind receive dust ware. It will qualified finished product of 80% collect , also alleviate next a level receipt dust greatly the handling of ware pressure and working load, make systematic operation rate higher and make fewer investment. Meanwhile, it will enter the type of wind with bottom; so it will make systematic resistance less, technical arrangement more compacter. Keywords: New Combined Separator Thick Powder Separator Grade 中北大學(xué)信息商務(wù)學(xué)院 畢業(yè)設(shè)計(jì)英文參考資料 The world's Latest Mechanical Design Concepts 學(xué)生姓名： 邸洋 學(xué)號(hào)： 12020144X53 系 別： 機(jī)械工程系 專 業(yè)： 機(jī)械設(shè)計(jì)制造及其自動(dòng)化 指導(dǎo)教師： 馬維金 職稱： 教授 2016年 6 月 2 日 The worlds Latest Mechanical Design Conceptssource：China Science and Technology JournalAbstract:According to scholars at home and abroad to carry out mechanicaldesign product design features of the main ideas, product design method of theprogramsummarizedassystematic,modularstructure,basedonproductcharacteristics of knowledge and wisdom. The characteristics of these methods andtheir organic connection between them and put forward to achieve the computerproduct design direction.Key words: Mechanical Product Design MethodDevelopment Trends Design documents will be Semantic Web as a design tool inthe design of its Semantic Web activity of the development of ASK, using nodes andlines to describe the design a network, nodes that components of the cell (such asdesign tasks, functions, components or processing equipment, etc. ), used to adjust thelines and definitions between nodes of different semantic relations, thus the designprocess all the activities and results of pre-built models so that the definition of theearly design requirements to the specific description of each structure can be definedby the relationship between the expression, achieved a computer-aided design process,the leap from the abstract to the concrete.Asystematic design methodThe main features of a systematic design method are: the design as designed by anumber of elements of a system, the independence of each design elements, eachelement of an organic link between the existence of, and is layered, with all the designelements , you can design systems to achieve the required task.Systematic design idea in the 70s by the German scholar Professor Pahl andBeitz, the system based on the theory they developed a general pattern of the design,advocacy design work should have organized. German Engineers Association, on thebasis of this design concept to develop a standard VDI2221 technology systems andproduct development design methods.1.The user needs functional characteristics as a product concept, structuredesign and part design, process planning, job control, etc. based on the macro fromthe product development process of starting the use of quality function deploymentmethod and system to user demand information reasonably and efficiently convertedto the various stages of product development, technical goals and operational controlprocedures method.2.The level of the product life of the organism as a system, and means ofliving systems theory, the product design process can be divided into successfulhierarchy of needs to achieve the functional requirements of the conceptual level andproduct level of the specific design. At the same time life-support systems used toexpress the abstract icons of the product functional requirements, system structureformation of product features.3.The mechanical design of the application of systems science into two basicquestions: First, to be designed as a system dealing with the products, the best way todetermine its component parts (modules) and their mutual relations1; is the productdesign process as a system, according to design objectives, a correct and reasonablydetermine the various aspects of the design work and various design stage.Because each designers point of research questions and to consider the questionof emphasis, to design a specific research methods used is also different. Here aresome representative of the systematic design methods.4.Design Element MethodWith the five design elements (functions, effects, effects vector, shape, elements,and surface parameters) describe the product solutions that a product to determinethe value of the five design elements, the product of all the features and characteristicsof the value of i.e. determined. Scholars in China have adopted similar methodsdesigned to describe the products original understanding.5.Graphic modeling methodAnd developed a design analysis and guidance systems KALEIT, with thelevel of clear graphic description of a products functional structure and its associatedabstract information, to the system structure and function relationship of graphicalmodeling, and functional connection between the layers 2.Assistance will be designed to be divided into two aspects of methodology andexchange of information using the Nijssen Information Analysis Method can be usedgraphic symbols, with a rich semantic model structure, can be described as integrationconditions, can be divided into types of constraints can be achieved in relationsbetween any combination of characteristics , the design method to solve integrationand information technology to realize the design process of information betweendifferent abstraction layers between the graphical modeling.6.Concept - Design methodProducts design is divided into concept and design in two stages. Conceptphase of the task is to find, choose and mix to meet the requirements of the originalunderstanding of design tasks. Design stage of work is a concrete realization of theoriginal understanding of the conceptual stage.Of the programs idea of specific described as: In accordance with theappropriate functional structure, seeking to meet the design requirements of theoriginal understanding of the task. The functional structure of the sub-function isperformed by the structural elements to achieve, and structural elements of thephysical connection between the definition of a feature vector, feature vector andstructural elements further the interaction between the formation of the functionaldiagram ( mechanical diagram). The program design is based on functional diagram,the first qualitative description of all of the feature vector and structural elements,and then quantitatively describe all the structural elements and the connection parts( feature vectors), the shape and location to be structure diagram3. Roper, H. usinggraph theory, by means of which he defines as the total design unit (GE), structuralelements (KE), functional structural elements (FKE), connect structural elements(VKE), Structural Parts (KT), structure element part (KET) concepts, as well asdescribe the structure element size, location, and transmission parameters of theinteractions between a number of kinds of schematics, the intuitive designprofessionals have done a formal design method a description of the formation of aneffective application of existing knowledge, methods, and applied to ideas anddesign stage.7.Bond Graph MethodFunction of the composition of system components will be divided into produceenergy, consumed energy, changing energy forms, such as various types of energytransfer, and to use bond graphs to express the function component solution, hoping tofunction-based model and bond graph combine to achieve functional structure theautomatic generation and functional structure with the bond graph automaticconversion between the search for bond graph generated by a number of designmethods.To promote the product on the basis of functional analysis, the product has somefeatures broken down into one or several modular basic structure, by selection andcombination of the basic structure of these modular form into different products.These basic structures can be parts, components, or even a system.The structure should have a standardized interface (connection and co-operationdepartment),andisserialized,universal,integrated,hierarchical,agile,economic-oriented, with interchangeability, compatibility and relevance. Chinascombination of software component technology and CAD technology, variant designcombined with the modular design, according to modular principle of classification,will be divided into descending Machining Center Machine Tool product level,component level, component level and component level, and use expert knowledgeand CAD technology to combine them into different species, different specificationsof functional blocks, and then by the combination of these functions into differentmodules of the overall program processing center.To design a directory as an alternative variation of the mechanical structure ofthe tool, the solution proposed by the design elements of a complete, structured layout,the formation of the solution set design catalogs. And in the solution set designed tocomment on each one listed in the directory solution additional information, is verybeneficial to design engineers select solution elements.The vigorous development of network technology, collaborative design andmanufacturing, as well as the product from the users functional requirements design processing assembly finished product of this realization of concurrentengineering possible. However, an important prerequisite to achieve these goals oneof the conditions is to realize the effect of product design three-dimensionalvisualization. To this end, three-dimensional graphics software, more and moreintelligent design software programs used in the product design, virtual realitytechnology and multimedia, hypermedia tools for product design is also its first debut.At present, Germany and other developed countries are focused on researchhypermedia technology, product data exchange standard STEP, as well as standardvirtual reality modeling language based on a standard exchange format for virtualenvironments) in the product design applications.Mechanical product design is moving in computer-aided realization of intelligentdesign and to meet the needs of distributed collaborative design and manufacture ofdirection, due to the computer product design Study on the implementation startedlate, not yet mature, to achieve the above objectives program design tools4. Authorbelieves that the integrated use of paper, four types of design method is an effectiveway to achieve this goal. Although the integrated use of these methods are moreinvolved in the field, not only with the mechanical design of the field-relatedknowledge, but also to the systems engineering theory, artificial intelligence theory,computer hardware and software engineering, network technology areas such asdomain knowledge, it is still product design must be working for. Abroad in researchin this area has achieved initial success, our scholars have been aware of CAD designtechnology and the importance of international exchange and cooperation, and itsmeasures to be taken.Feature-based design methodology of knowledge The main features are: using acomputer can identify the language to describe the characteristics of the product andits design experts in the field of knowledge and experience to establish the appropriateknowledge base and inference engine, re-use of stored domain knowledge and theestablishment of the inference mechanism to bring computer-aided product design.The mechanical system design is mainly based on the characteristics of a product,and design experts in the field of knowledge and experience to push volume anddecision-making, the completion of body type, the number of synthesis. To achievethis stage of computer-aided design, must study the automatic acquisition ofknowledge, expression, integration, coordination, management and use. To this end,the design and scholars at home and abroad program for the mechanical systemdesign knowledge of the automated processing done a lot of research work, theapproach can be summarized into the following several.