【文章內(nèi)容簡介】 2D工程圖紙，由于工程圖紙和3D零件動態(tài)連接，因此當(dāng)用戶修改生成視圖的3D模型時，零件視圖、尺寸和注釋等都自動更新，節(jié)約了圖紙管理和維護(hù)的時間。2． 演示市場銷售Pro/E的渲染工具可幫助用戶以真實(shí)的照片有效地交流其設(shè)計。用戶完成高質(zhì)量的零件、裝配圖、裝配爆炸效果圖，可用于演示、設(shè)計檢查、市場銷售、制作說明書等用途。最直觀的 Pro/E 拋棄傳統(tǒng) CAD/CAM 軟件中的線框和表面模型，而直接于 3D 實(shí)體。這使我們的設(shè)計環(huán)境完全從 2D 或 2D 與 3D 混合狀態(tài)上升為純3D 模式。產(chǎn)品或模具的描述信息變得更加完整，概念更加清晰，更易于抓住設(shè)計意圖。設(shè)計質(zhì)量和速度也大大提高，尤其是結(jié)合快速原型技術(shù)，可以大大縮短產(chǎn)品設(shè)計生產(chǎn)上市周期?？傊S著 Pro/E 的不斷完善和發(fā)展，越來越多的問題將被解決，越來越多的理想將變?yōu)楝F(xiàn)實(shí)。 Pro/E 的魅力將更多地體現(xiàn)為生產(chǎn)力水平的極大提高。 5. 支重輪主要由值軸、輪體、軸套、浮動油封座、螺塞、墊圈、浮動油封、環(huán)形圈、銷等組成。首先對各個零件進(jìn)行建模，圖51為支重輪輪體的PRO/E三維模型，圖52為支重輪浮動油封座的PRO/E三維模型，53為支重輪軸的PRO/E三維模型。 圖51支重輪體圖52支重輪浮動油封座 圖53支重輪軸完成零件建模后，進(jìn)行支重輪裝配，如圖54：圖54支重輪導(dǎo)向輪主要由導(dǎo)向輪軸、O形密封圈、導(dǎo)向輪堵板、圓柱銷、導(dǎo)向輪輪體、鐵套、雙金屬軸套。首先對導(dǎo)向輪各個零件進(jìn)行建模，圖55為引導(dǎo)輪輪體的PRO/E三維模型，圖56為引導(dǎo)輪軸的PRO/E三維模型。 圖55為引導(dǎo)輪輪體圖56引導(dǎo)輪軸完成零件建模后，進(jìn)行引導(dǎo)輪裝配，得圖57 圖57引導(dǎo)輪 本章簡單介紹了支重輪與引導(dǎo)輪的三維Pro/E視圖、以及Pro/E簡介，著重于進(jìn)一步對支重輪與引導(dǎo)輪結(jié)構(gòu)形式的表達(dá)，使讀者更能清楚地了解其結(jié)構(gòu)，從而對支重輪、引導(dǎo)輪的深入研究以及對其結(jié)構(gòu)的優(yōu)化設(shè)計做了有利的前提條件，為以后打下了良好基礎(chǔ)。第六章 結(jié)論 本文對旋挖鉆機(jī)的現(xiàn)狀及發(fā)展趨勢作了充分分析，了解了支重輪、引導(dǎo)輪的結(jié)構(gòu)形式及組成，并對其做了結(jié)構(gòu)尺寸設(shè)計及履帶行走裝置行走受力分析和詳細(xì)計算。本設(shè)計是以三一SR150旋挖鉆機(jī)為參考進(jìn)行設(shè)計，現(xiàn)將主要工作和進(jìn)展總結(jié)如下：（1）本文分析了支重輪、引導(dǎo)輪的結(jié)構(gòu)形式及其分類、特點(diǎn)和工作原理，并對履帶行走裝置的牽引力進(jìn)行了詳細(xì)的分析和計算，符合實(shí)際能應(yīng)用于實(shí)際當(dāng)中。（2）第四章詳細(xì)介紹了支重輪、引導(dǎo)輪的結(jié)構(gòu)設(shè)計，并參照國標(biāo)且確定了各輪的結(jié)構(gòu)尺寸、組成部分及各種參數(shù)及技術(shù)要求。（3）最后對支重輪、引導(dǎo)輪進(jìn)行三維建模進(jìn)一步了解其結(jié)構(gòu)形式，并簡單介紹的Pro/E。通過這次畢業(yè)設(shè)計不僅使我掌握了對各類軟件的使用，而且還很好的對以前所學(xué)的各類知識做了系統(tǒng)的復(fù)習(xí)與加深，并對工程設(shè)計的流程有了一定的了解。通過對支重輪、引導(dǎo)輪的設(shè)計與計算，讓我了解了履帶行走裝置的行駛原理，并對整機(jī)的結(jié)構(gòu)及工作情況有了初步的認(rèn)識。同時在結(jié)束之際我很感謝指導(dǎo)老師周友行以及研究生助教姚小海對我的指導(dǎo)與幫助，讓我在這次畢業(yè)設(shè)計中學(xué)到了許多從來沒有學(xué)到的東西，另外還有其他同組同學(xué)的協(xié)助與幫忙。參考文獻(xiàn)[1][M]. 北京：國防工業(yè)出版社. [2][M]. 北京：化學(xué)工業(yè)出版社. [3][M]. 北京：[4]濮良貴，（第七版）[M].北京：西北工業(yè)大學(xué)機(jī)械原理及機(jī)械零件教研室，高等教育出版社，2000．[5][M]. 北京：高等教育出版，2002.[6]（第三版）[M].北京：清華大學(xué)出版社，2001[7][M].北京：高等教育出版社，．[8]張鳳山，[M].北京：人民郵電出版社，2007.[9][M]北京：中國建筑工業(yè)出版社，1986.[10]GB/,：中國標(biāo)準(zhǔn)出版社. [11]GB/T91401996，液壓挖掘機(jī)結(jié)構(gòu)與性能. 北京：中國標(biāo)準(zhǔn)出版社. [12]JB/T591999,液壓挖掘機(jī)支重輪. 北京：[13]JB/T26022001，：機(jī)械科學(xué)研究院. [14]JB/，履帶式推土機(jī)總成. 北京：[15]孫恒，（第六版）[M].北京：高等教育出版社，2001.[16][J].工程機(jī)械,1987Rapid Prototyping and manufacturingIntroduction The term “rapid prototyping” (RP) is a relatively new expression for the generation of threedimensional models manufactured without the need for machining or products designed on a puter aided design system, the first rapid prototyping system was introduced on to the US market in 1988 and gave the engineer the opportunity to produce 3 dimensional objects directly from Computer Aided Design (CAD) date and succeed in the costeffective production of patterns and moulds with plex surfaces.The principle advantages of using this technology are:n High speed at which the solid model is generated.n The plexity of the model does not form any limitation to its production.n The early use of these models was to assist the designer in determining fitness and form. It also provided the sales team with a 3 dimensional object to show to a prospective customer, this being far better than the traditional orthographic drawing which many people find difficult to interpret.n The benefits of RP:n Converts 3D CAD images into accurate physical models at a fraction of the cost of traditional methods.n Improves design munication and helps eliminate design mistakes.n Reduces “time to market” for a new product.n Can be used as a powerful marketing tool since the prototype can be seen rather than the drawing.The development of this technology has reached into many of the traditional fields, attracting the interest of artisans whose skill any knowledge has led to 3D objects being used directly and indirectly as patterns and model for soft tooling. Production of models by machining has a number of limitations.l Material removed during forming is difficult to reclaim. l Machining in the form of drilling turning milling spark erosion etc., is limited by the shapes it can produce.l In the event of design change, conventional tooling such as patterns ,core boxes, dies, jigs etc. ,bee expensive to alter ，and in many cases, may require plete remanufacture.Rapid prototyping differs with conventional manufacturing methods by adding material layer by layer until the desired sharp is achieved, immediately reducing or avoiding the loss of material.What RPamp。M CAN DO?To substantially shorten the time for developing patterns, moulds, and prototypes, some manufacturing enterprises have started to use rapid prototyping methods for plex patterns making and ponent prototyping. Over the past few years, a variety of new rapid manufacturing technologies, generally called Rapid Prototyping and Manufacturing(RPamp。M),have emerged 。the technologies developed include Stereo lithography (SL), selected laser sintering(SLS),fused deposition modeling(FDM),laminated object manufacturing(LOM),and three dimensional printing (3D Print).They have a mon important feature 。the prototype part is produced by adding materials rather than removing materials. This simplifies the 3D part producing processes to 2D layer adding processes so that a part can be produced directly from its puter model. THE BASIC PROCESS IN RPRP machines process