機械工程及自動化畢業(yè)論文范文免費預覽

1、小型清雪車的總體設計和三維建模 小型清雪車的總體設計和三維建模學 院 機械工程學院 機械工程學院專 業(yè) 機械工程及自動化 機械工程及自動化濟南大學機械工程學院二零零七年六月中文摘要本文在分析了目前國內外的主要除雪方法的基礎上，提出一種適合中國國情的小型機械旋轉式清雪車的設計方案，并對其進行了理論分析和實用結構設計分析，同時用 Solid Edge 軟件繪制了三維實體造型效果圖和二維工程圖

2、，為國內生產該種清雪車提供了完整技術資料。本文首先對道路上的壓實積雪的物理機械性能進行分析研究，并查閱參考了目前的國內外有關該設備的大量資料，在已有成果的基礎上，進行設計計算和機構創(chuàng)新，這些資料為本文設計計算提供了重要的理論依據(jù)。在分析大型旋轉式除雪機結構和設計理論的基礎上，針對國內單位清雪分塊承擔的特點，本文對小型螺旋旋轉式清雪車進行了深入分析，并進行了完善，設計了此種清雪設備。通過對已有小型清雪設備的分析研究，表明現(xiàn)有設備能實現(xiàn)基本

3、的集雪、運雪和拋雪功能。但尚存在操作不方便，清雪效率不高等缺點。根據(jù)已有的理論研究基礎，針對目前已有機械的不足，本文設計了帶有拋雪葉輪、加有內置蝸桿傳動和螺旋狀集雪攪龍裝置的清雪車，確定了其主要參數(shù)，傳動方案和結構形式。設計時充分考慮了各種因素，對其中的關鍵部件—拋雪輪進行了有限元分析，并應用人機工程學原理，可對扶手高度進行調節(jié)，使操作更加舒適方便。提出了一整套實用結構，使得該機型大小適中，操作方便，外表美觀。本文在設計和繪圖中，采用先

4、進的工程軟件 Solid Edge 進行三維實體造型設計、二維工程圖的繪制和有限元分析，為國內生產該種清雪車提供了一整套技術資料。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