全文总字数：8949字
1. 研究目的与意义（文献综述）
The development of theeconomy has made the proportion of automobiles in people's lives more and morelarge, while medium-sized cargo vehicles have a large share in the productionof automobiles, and the demand for simple structures and low-cost drivingbridges has increased. It can reduce the total cost of production and promotethe development of the cargo car economy[1].
The role of the truck drivebridge is to get the torque from the car engine[2] .By passing themain speed reducer, differential, drive shaft and other parts to the frontdrive wheel of the truck, the main speed reducer will reduce the transmissionspeed and obtain a relatively high output torque. The main speed reducer double-sidedgear pair and the bevel gear pair can change the torque transmission direction[3]. During the journey of the truck, the drive bridge uses the differentialto make the wheels on both sides of the truck produce differential effects whenturning and turning, so that the wheels on the outside and inside sides of thetruck turn at different speeds at the same time. The Effect of Load andTransfer Power on the Shell Body of Carbridge and the Wheel of Truck[4].
Domesticdrive bridges mostly use hoof type or disc type dry type brake, disc type brakeis divided into two types: clamp disc type and total type[5].Comparedwith foreign advanced products, the domestic technology level of driving bridgegear transmission is still relatively low, and there are two main shortcomings:First, there is a certain gap between gear, shaft, shell and other parts andmaterials compared with foreign products. There are defects such as largeoverall weight and volume, short service life, etc.. Second, the technicalperformance is relatively backward, and there is generally no advanced devicesuch as self-locking Anti-Slip differential and wet brake[6]. Thepromotion of self-locking Anti-Slip differential and wet brake in the tire typeengineering mechanical drive bridge is one of the ways to improve the technicallevel of the engineering mechanical drive bridge, and it is also an inevitabletrend of the development of domestic mechanical drive bridge technology.
2. 研究的基本内容与方案
2.1Basic content, objectives of the study
3. 研究计划与安排
| 周次(时间) | 工作内容 | 提交内容(阶段末) |
| 1-2（7 学期第19、20周） | 毕业设计动员、确定毕业设计选题、毕业设计任务书(相关参数)、校内资料收集 | 毕业设计任务书 |
| 3（8 学期第1周） | 方案构思、文献检索、完成开题报告 | 文献检索、开题报告 |
| 毕业实习两周（8学期第2-3周） | 校外实习、校外资料收集、完成实习报告 | 实习报告 |
| 4（8学期第4周） | 外文翻译、资料再收集 | 外文翻译 |
| 5~7（8学期第5~7周） | 设计计算、草图绘制 | 设计计算草稿、草图 |
| 第7周末 | 期中答辩 |
|
| 8~10（8学期第8~10周） | 图样绘制、编写设计计算说明书（论文）、预答辩 | 图样、论文初稿 |
| 11~13（8学期第11~13周） | 图样及设计计算说明书整理、资料袋整理，答辩资格审查 | 正式图样、论文 |
| 14（8学期第14周） | 学生提出答辩申请，并作答辩准备；教师审阅图纸、说明书 | 毕业设计资料袋 |
| 15~16（8学期15~16周） | 参加答辩、推荐省优 | 毕业设计成绩、省优毕业论文 |
4. 参考文献（12篇以上）
[1]袁敬琰,史振萍.低速载货汽车驱动桥的设计[J], 德州学院,2016.11
[2]过学迅. 汽车设计(第二版)[M].北京:人民交通出版社，2013.08
[3]陈家瑞. 汽车构造（第五版）[M].北京:人民交通出版社，2005.09
以上是毕业论文开题报告，课题毕业论文、任务书、外文翻译、程序设计、图纸设计等资料可联系客服协助查找。
