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摘 要
畢業(yè)設(shè)計是機械設(shè)計課程重要的綜合性與實踐性教學(xué)環(huán)節(jié)，通過畢業(yè)設(shè)計可綜合運用機械設(shè)計課程和其他先修課程的知識，分析和解決機械設(shè)計問題，進一步鞏固、加深和拓寬所學(xué)的知識。作為機械類工科學(xué)生，完成了此項教學(xué)環(huán)節(jié)，也就為完成本科學(xué)業(yè)及將來的畢業(yè)設(shè)計奠定了良好的基礎(chǔ)。
傳統(tǒng)的畢業(yè)設(shè)計題目常選用通用機械的傳動裝置，例如以齒輪減速器為主體的機械傳動裝置。其主要內(nèi)容包括：傳動裝置的總體設(shè)計；傳動零件、軸、軸承、聯(lián)軸器等的設(shè)計計算和選擇；裝配圖和零件圖設(shè)計；編寫設(shè)計計算說明書?，F(xiàn)選擇以摩托車發(fā)動機傳動和變速部分為主的新設(shè)計課題，設(shè)計方法采用常規(guī)手段與微機輔助相結(jié)合。該新題目較經(jīng)典課題更具復(fù)雜性和體現(xiàn)時代氣息，涉及的機構(gòu)及零部件增多，所覆蓋的知識面更廣泛，結(jié)構(gòu)設(shè)計難度加大，設(shè)計時要求學(xué)生綜合考慮諸多因素，自己分析和解決問題，可以幫助學(xué)生樹立正確的設(shè)計思想，增強創(chuàng)新意識和競爭意識。
關(guān)鍵詞：摩托車發(fā)動機；分析和解決問題；設(shè)計；
Abstract
Curriculum design is important mechanical design courses integrated with practice teaching, Through courses designed to make comprehensive use of mechanical design courses and other courses of the pre-knowledge. Analyze and solve mechanical design issues and further strengthen, deepen and broaden the knowledge learned. As a mechanical engineering students, completed the teaching aspect of it for the completion of undergraduate studies and graduated from the design of the future laid a good foundation.
The traditional curriculum design often choose topics of general machinery drives, such as gear reducer for the main mechanical gear. Its main contents include: transmission of the overall design; transmission parts, axle, bearings, couplings, such as computing and the design of choice; assembly and parts map design; design calculations prepared statement. Now choose to motorcycle engine and transmission speed of the main topics of the new design, using conventional design methods and means of combining computer-assisted. The new title is more complex than the classic issues of the times and the atmosphere, the bodies and parts increased by more extensive coverage of knowledge, difficult to design the structure, designed for students considered many factors, analyze and solve their own Problems, can help students to establish the correct design ideas, strengthen their sense of innovation and the sense of competition.
Key words: Motorcycle engine, analysis and problem-solving; design;