機(jī)械工程及自動(dòng)化畢業(yè)論文范文免費(fèi)預(yù)覽

1、小型清雪車的總體設(shè)計(jì)和三維建模 小型清雪車的總體設(shè)計(jì)和三維建模學(xué) 院 機(jī)械工程學(xué)院 機(jī)械工程學(xué)院專 業(yè) 機(jī)械工程及自動(dòng)化 機(jī)械工程及自動(dòng)化濟(jì)南大學(xué)機(jī)械工程學(xué)院二零零七年六月中文摘要本文在分析了目前國(guó)內(nèi)外的主要除雪方法的基礎(chǔ)上，提出一種適合中國(guó)國(guó)情的小型機(jī)械旋轉(zhuǎn)式清雪車的設(shè)計(jì)方案，并對(duì)其進(jìn)行了理論分析和實(shí)用結(jié)構(gòu)設(shè)計(jì)分析，同時(shí)用 Solid Edge 軟件繪制了三維實(shí)體造型效果圖和二維工程圖

2、，為國(guó)內(nèi)生產(chǎn)該種清雪車提供了完整技術(shù)資料。本文首先對(duì)道路上的壓實(shí)積雪的物理機(jī)械性能進(jìn)行分析研究，并查閱參考了目前的國(guó)內(nèi)外有關(guān)該設(shè)備的大量資料，在已有成果的基礎(chǔ)上，進(jìn)行設(shè)計(jì)計(jì)算和機(jī)構(gòu)創(chuàng)新，這些資料為本文設(shè)計(jì)計(jì)算提供了重要的理論依據(jù)。在分析大型旋轉(zhuǎn)式除雪機(jī)結(jié)構(gòu)和設(shè)計(jì)理論的基礎(chǔ)上，針對(duì)國(guó)內(nèi)單位清雪分塊承擔(dān)的特點(diǎn)，本文對(duì)小型螺旋旋轉(zhuǎn)式清雪車進(jìn)行了深入分析，并進(jìn)行了完善，設(shè)計(jì)了此種清雪設(shè)備。通過(guò)對(duì)已有小型清雪設(shè)備的分析研究，表明現(xiàn)有設(shè)備能實(shí)現(xiàn)基本

3、的集雪、運(yùn)雪和拋雪功能。但尚存在操作不方便，清雪效率不高等缺點(diǎn)。根據(jù)已有的理論研究基礎(chǔ)，針對(duì)目前已有機(jī)械的不足，本文設(shè)計(jì)了帶有拋雪葉輪、加有內(nèi)置蝸桿傳動(dòng)和螺旋狀集雪攪龍裝置的清雪車，確定了其主要參數(shù)，傳動(dòng)方案和結(jié)構(gòu)形式。設(shè)計(jì)時(shí)充分考慮了各種因素，對(duì)其中的關(guān)鍵部件—拋雪輪進(jìn)行了有限元分析，并應(yīng)用人機(jī)工程學(xué)原理，可對(duì)扶手高度進(jìn)行調(diào)節(jié)，使操作更加舒適方便。提出了一整套實(shí)用結(jié)構(gòu)，使得該機(jī)型大小適中，操作方便，外表美觀。本文在設(shè)計(jì)和繪圖中，采用先

4、進(jìn)的工程軟件 Solid Edge 進(jìn)行三維實(shí)體造型設(shè)計(jì)、二維工程圖的繪制和有限元分析，為國(guó)內(nèi)生產(chǎn)該種清雪車提供了一整套技術(shù)資料。各專業(yè)畢業(yè)論文范文盡在道客巴巴下載 www.doc88.com各專業(yè)畢業(yè)論文范文盡在道客巴巴下載 www.doc88.comABSTRACTAfter analyzing the various means of snow-clearings in the world at present, the pro

5、ject of a sort of mini snow-blower fit for China is put forward in this paper. Based on the theory study and applied structural design, the three-dimensional solid model and planar drawing have be completed with Solid

6、Edge engineering software, which can offer an entire technical data and engineering drawings for producing factory. This paper first analyse the physical and mechanical properties of snow compaction on the road, then a

7、ccess to a lot of information about this equipment at home and abroad. Design calculations and institutional innovation is based on the result which has been researched. All this information has provided an important

8、theoretical basis for the design calculations and institutional innovate in this paper. On the basis of analysis structure and design theory of the large rotary Snowremoveing machine, arm to the characteristic of snowr

9、emoveing in the national company, Mini Snow-blower is deeply reseached and consummated in this paper. Mini Snow-blower is designed.Overpass the research and analysis of mini Snow-blower nowadays,we realize that the eq

10、uipment nowadays can carry out the functions of collecting,carrying and throwing snow.But there are some disadvantages,for e example, the manipulation is discommodiousness,the efficiency of snow removing is low. Referi

11、ng to the foundation of the academic researches nowadays, contraposing the deficiency of mini Snow-blower , we devise a type of mini Snow-blower which with impeller, worm inside and twist collect equipment. Mostly par

12、ameters, blue print of drive and modality of structure are ensured.All complications are calculated during design.The shrowing equipment is finite element analysisd which is pivotal part in mini Snow- blower.The princi

13、pium of ergonomics is applied too,the height of handrail can be accommodated. Manipulations get more comfortable.A complete set of banausic structures are brought forward.The magnitude of this equipment is moderate. M

14、anipulation is convenience. Appearance is beautiful.During the designing and ploting, the three-dimensional solid model, planar drawing and finite element analysis have been completed with Solid Edge engineering softwa