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黑龍江工程學院本科生畢業(yè)設計
摘 要
汽車若在冰雪路面或無路的情況下行駛時，就要求增加驅動車輪的數目，以充分利用汽車的重量來增加車輪與道路間的附著力。分動器的主要功用是將發(fā)動機輸出的動力分配到各驅動橋，并且進一步增大扭矩；其另一個功用是兼起副變速器的作用。分動器也是一個齒輪傳動系統(tǒng)，它單獨固定在車架上，其輸入軸與分動器的輸出軸用萬向傳動裝置連接，分動器的輸出軸有若干根，分別經萬向傳動裝置與各驅動橋相連。
本設計根據匹配車型的使用條件和車輛參數選擇分動器的結構形式，并按照分動器總成的設計步驟和要求，對其主要零部件，如齒輪、軸進行了相關的設計工作和校核工作。并根據汽車設計、汽車理論、機械設計、機械設計課程等參考資料提供的相關知識，對計算出的分動器具體參數進行檢驗，并論證設計的合理性。最終，用AutoCAD軟件完成分動器二維裝配圖和零件圖的繪制。
關鍵詞：分動器；分時；中心距；齒輪；軸；結合套
ABSTRACT
If car drive in snow and ice road or no way under the condition of the road, it’s to ask for an increase in the number of driver wheels，To take full advantage of the weight of the car to increase the wheels and the adhesion between road，The main function is to thansfer engine output power distribution to the driving axle, and further increase torque, the other a function is and the deputy variable speed.Thansfer is also a gear transmission system, it alone in frames, the fixed input shaft and thansfer output shaft with universal transmission devices connected, thansfer output shaft several root, the universal respectively with each drive transmission device connected.
This design according to the conditions of use and matching model vehicle parameter selection of structure form, and thansfer according to the design procedures of the assembly thansfer and requirement, for its main parts, such as gear, the shaft related design work and check work. And according to the car design, car theory, mechanical design, mechanical design courses provide reference information for the relevant knowledge, calculated from the concrete parameters for inspection, thansfer and demonstrates the rationality of the design. Finally, with AutoCAD software thansfer 2 d assembly drawings and component drawing.
Key words:Thansfer; points; center distance;Gear；Axis；Meshing sets
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