微型货车驱动桥设计(全套图纸)

1、毕业设计说明书论文(全套CAD图纸) QQ 36396305 摘 要 驱动桥位于传动系末端，其基本功用是增矩、降速，承受作用于路面和车架或车身之家的作用力。它的性能的好坏直接影响整车性能，而对于载重汽车显得尤其重要。当采用大功率发动机输出大的转矩以满足目前载重汽车的快速、重载的高效率、高效益的需要时，必须搭配一个高效、可靠的驱动桥，所以采用传动效率高的单级减速驱动桥已经成为未来载重汽车的发展方向。驱动桥设计应主要保证汽车在给定的条件下具有最佳的动力性和燃油经济性。本设计根据给定的参数，按照传统设计方法并参考同类型车确定汽车总体参数，再确定主减速器、差速器、半轴、和桥壳的结构类型，最后进行参数设

2、计并对主减速器主从动齿轮、半轴齿轮和行星齿轮进行强度以及寿命的校核。驱动桥设计过程中基本保证结构合理，符合实际应用，总成纪律部件的设计能尽量满足零件的标准化、部件的通用化和产品的系列化及汽车变型的要求，维修保养方便，机件工艺性好，制造容易。关键词：微型货车；驱动桥；主减速器；差速器AbstractDrive axle is at the end of the powertrain, and its basic function is increasing the torque and reducing the speed, bearing the force between the road

3、and the frame or body. Its performance will have a direct impact on automobile performance. Because using the big power engine with the big driving torque satisfied the need of high speed, heavy-loaded, high efficiency ,high benefit today heavy truck , must exploiting the high driven efficiency sing

4、le reduction final drive axle is becoming the heavy truck developing tendency . drive axle should be designed to ensure the best dynamic and fuel economy on given condition . According to the design parameters given , firstly determine the overall vehicle parametres in accordance with the traditiona

5、l design methods and reference the same vehicle parameters , then identify the main reducer , differential , axle and axle housing structure type , finally design the parameters of the main gear ,the driven gear of the final drive, axle gears and spiral bevel gear and check the strength and life of

6、them. In design process of the drive axle ,we should ensure a resonable structure , practical applications, the standardization of parts , components and products univertiality and the seralization and change , convenience of repair and maintenance , good mechanical technology ,being easy to manufac

7、ture.Key words: light truck ; drive axle ; single reduction ;final drive目 录摘要IAbstractII第1章 绪 论11.1 课题研究的意义和目的11.2 国内外研究现状及发展趋势21.3 本论文研究的主要内容2第2章 驱动桥方案拟定3第3章 主减速器设计43.1 主减速器结构形式及选择43.2 主减速器主、从动锥齿轮的支承方案63.3 主减速齿轮类型63.4 主减速器从动锥齿轮基本参数的选择与计算8 3.4.1 主减速器比的确定8 3.4.2 主减速器齿轮计算载荷的确定8 3.4.3 锥齿轮主要参数的选择10 3.4.

8、4 主减速器锥齿轮的材料13 3.4.5 主减速器弧齿锥齿轮的几何尺寸计算13 3.4.6 主减速器弧齿锥齿轮的强度计算173.5 轴承疲劳寿命计算22第4章 差速器设计与计算244.1 对称式圆锥行星齿轮差速器的工作原理254.2 差速器齿轮的主要参数选择264.3 差速器齿轮的材料284.4 差速器齿轮几何尺寸计算284.5 差速器齿轮强度计算324.5.1 差速器齿轮弯曲疲劳强度计算324.5.2 差速器齿轮齿面疲劳强度计算33第5章 半轴设计与计算365.1 半轴结构形式的选择365.2 半轴基本参数计算与校核375.3 半轴的材料选择与热处理39第6章 驱动桥桥壳的设计406.1 桥

9、壳的结构型式选择406.2 桥壳的结构设计与计算426.2.1 桥壳的静弯曲应力分析与计算426.2.2 在不平路面冲击载荷作用下的桥壳强度计算446.2.3 汽车以最大牵引力行驶时桥壳的强度计算446.2.4 汽车紧急制动时的桥壳强度计算46结论49参考文献50致谢51附录52附录1外文文献中文翻译52附录2外文文献原文54their own conditions to develop the correct road, the maximum to avoid investment risk, gain profit.(three) vigorously promote the brand

10、. To establish brand awareness, awareness of the use of brand, brand value, brand acquisition performance, enhance the competitive strength. Concentrated manpower, careful planning, packaging and publicity of a number of unique, market influence and coverage of the brand, the implementation of key b

11、reakthroughs, to enhance the competitive strength, walking business road the competition of alienation and characteristics, the pursuit of stability and development of the market.(four) to promote the integration of resources. To further broaden their horizons, effective integration of resources wit

12、hin the group, the city resources, other industries and regional resources, mutual trust, mutual benefit, seeking win-win principle, in the framework of national policies and regulations, strict inspection and argumentation, legal consultation, examination and approval procedures, strict regulation

13、of economic activities, attract injection the social investment to the industry group, to achieve leveraging the development, ensure that the value of state-owned assets.(five) to strengthen the construction management personnel. Strengthen the management of education and training of cadres and work

14、ers of the existing business, firmly establish the concept of the market, enhance the sense of crisis to adapt to market competition, the sense of urgency, improve the ability to respond to market competition, improve management and operation of the market. At the same time, according to the need of

15、 industrial development, vigorously the introduction of high-quality management management personnel, and strive to build a high-quality professional management team, hard work, and promote the entire workforce knowledge structure, age structure, structure optimization and upgrading ability, enhance

16、 core competitiveness, adapt to the need of market competition.(six) seriously study the policy for policy. Serious research about social support the development of cultural undertakings in the country and the XX policy, especially the policy of industrial development, financial investment policy, f

17、inancial policy and tax policy, and actively seek policy, projects and funds, enterprise and industry group mission to promote leapfrog development.11 哈尔滨工业大学华德应用技术学院毕业设计（论文） 题 目 微型货车驱动桥设计 专 业学 号学 生指 导 教 师答 辩 日 期哈工大华德学院哈工大华德学院毕业设计（论文）评语姓名： 学号： 专业： 毕业设计（论文）题目： 工作起止日期：_ 年_ 月_ 日起 _ 年_ 月_ 日止指导教师对毕业设计（论文

18、）进行情况，完成质量及评分意见：_ 指导教师签字： 指导教师职称： 评阅人评阅意见：_ _ _ _ 评阅教师签字：_ 评阅教师职称：_答辩委员会评语：_根据毕业设计（论文）的材料和学生的答辩情况，答辩委员会作出如下评定：学生 毕业设计（论文）答辩成绩评定为： 对毕业设计（论文）的特殊评语：_ 答辩委员会主任（签字）： 职称：_答辩委员会副主任（签字）： 答辩委员会委员（签字）：_ _ _ _ _ _ _ _ _ _ _ _ _ _ _年 月 日哈工大华德学院毕业设计（论文）任务书 姓 名： 院 （系）：汽车工程系 专 业： 班 号： 任务起至日期： 2010年 10 月 10 日 至 2010 年 12 月 28 日 毕业设计（论文）题目： 微型货车驱动桥设计 立题的目的和意义：汽车驱动桥是汽车的重大总成，承载着汽车的满载簧荷重及地面经车轮、车架及承载式车身经悬架给予的铅垂力、纵向力、横向力及其力矩，以及冲击载荷；驱动桥还传递着传着传动系中最大的转矩，桥壳还承受着反作用力矩。驱动桥结构形式和设计参数除对汽车的可靠性和耐久性有重要影响外，也对汽车的行驶性能入动力性、经济型、平顺性、通过性、机动性和操作稳定性等有直接的影响。另外，汽车驱动桥在汽车各种总成中也是涵盖机械零件、部件、分总成等的品种最多的大总成。例如，驱动桥包含主减速器、差速器、驱动车轮的传