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HKD640微型客車設計（前橋、前懸架與轉(zhuǎn)向系設計）
摘 要
本次設計中我的設計任務微型客車的前橋、前懸架與轉(zhuǎn)向系設計。由于本車前橋采用了麥弗遜式獨立懸架，所以前橋采用與之相配合的斷開式車橋，屬于轉(zhuǎn)向驅(qū)動橋。前懸架有獨立懸架與非獨立懸架之分，本車前懸架采用了麥弗遜式獨立懸架，其優(yōu)點是增加懸架了兩前輪內(nèi)測的空間，便于發(fā)動機和起一些不簡單布置。主要對懸架的性能參數(shù)進行確定，對彈性元件進行了計算，并選擇了合適的減振器。通過對懸架主要參數(shù)的設計與計算，從而保證本車的行駛平順性與減震性能。汽車轉(zhuǎn)向系的設計主要包括了轉(zhuǎn)向前橋設計，轉(zhuǎn)向器選擇的是循環(huán)球式轉(zhuǎn)向器，并通過計算使之符合設計要求，并對專項題型進行計算，并通過優(yōu)化使之接近理想狀態(tài)。為保障整車性能，在設計時盡量對前橋和轉(zhuǎn)向系進行優(yōu)化。
設計中，主要通過查看實際車輛，總結(jié)課本知識，翻閱有關汽車方面的文章來研究前橋、前懸架和轉(zhuǎn)向系，并驗算了有關零部件的結(jié)構強度和剛度。最后進行了設計總結(jié)。
關鍵字：微型客車、前懸掛系統(tǒng)、轉(zhuǎn)向系統(tǒng)、轉(zhuǎn)向梯形、
非獨立懸架、獨立懸架
HKD640 minibus design (front axle, front suspension and steering system design)
Abstract
The design of the task of designing my first mini-bus bridge, the front suspension and steering design. As the front McPherson independent suspension bridge used, so use with matching front axle disconnect axles, drive axles are turning. Front suspension with independent suspension and divided into non-independent suspension, the car front suspension uses McPherson independent suspension, its advantage is to increase the front suspension of the two closed beta of space, easy starting engine and a number of simple layout. The main performance parameters of the suspension to determine, on the elastic components were calculated, and select the appropriate shock absorber. The main parameters of the suspension through the design and calculation, in order to ensure the vehicle ride comfort and shock absorption properties. Automotive Steering System Design includes the design of steering front axle, steering gear choice is a recirculating ball steering, and through calculation to conform to design requirements, and special Questions in calculation, and by optimizing to near Lixiangzhuangtai. For the protection of vehicle performance, as far as possible in the design of the front axle and steering system optimization.
Design, mainly by looking at the actual vehicles, concluded textbook knowledge, read the article in respect of the vehicle to study the front axle, front suspension and steering systems, and checking the relevant parts of the structural strength and rigidity. Finally, the design summary.
KEY WORDS: The miniature passenger train, the front hangs system, the steering system, the steering trapezium, the non-independent suspension fork, the independent suspension fork