摘要

随着能源危机的日益严重以及人们环保意识的不断增强，研究开发清洁、节能和安全的汽车成为汽车工业发展的方向。其中电动汽车具有行驶过程中零排放、能源利用多元化和高效化以及方便实现智能等优点，使之成为新型汽车研发的重点之一。
本文以减速型电动轮驱动电动汽车的优势为出发点，设计了利于电动汽车使用减速型电动轮的轮边减速装置，对轮边减速器的结构进行了设计、研究，增强了电机内转子驱动型电动轮在电动汽车上的应用能力。以行星齿轮系为轮边减速器的减速传动形式，在减速传动链的设计中，引入了均载设计来提升行星齿轮传动的优势；出于减小轮边减速器的重量及体积、节省材料的目的，对轮边减速器的行星传动系统进行了以体积为目标的优化设计；为便于制动装置及轮毂与轮边减速器安装，设计了轮毂支承件，在满足功能的同时也减少了零件数目；轮边减速器桥壳的巧妙设计使减速器及其轮毂支承件的安装变得更容易、受力也更合理，为前后轮悬架导向机构、转向拉杆及横向稳定杆提供了支点，更进一步保证所设计的轮边减速器能够精确地实现与电动汽车其它零部件的安装及联接, 保证所设计的轮边减速器满足整车行驶工况要求。
 
 
 
关键词：轮边减速器；电动汽车；电动轮；行星齿轮减速器；电动机

ABSTRACT

With improving environmental protection consciousness and the serious energy crisis，to research and develop the clear, energy-saving and safe auto become the new direction of development of automobile industry. Electric vehicle, which has much advantages, such as no emission, pluralism and high-efficient of energy utilization, and conveniently realizing intelligence erc, is about to become one of the focal points in researching and developing new—type automobile.
The design and research takes a wheel reduction unit applied on reduced wheel-drive electric vehicle as the subjective．Research for the type of structure has been done in this thesis which will contribute to the application capability of reduced electric wheel．Load balancing structure is introduced into the drive line design of the planetary wheel reducer to fulfill the advantage of planetary transmission．In order to decrease weight and volume as well as save to material，the researcher optimized the volume of the planetary transmission．For easy to assemble the break system and the wheel--hub while reducing components number, a connection supporting part is designed．The most particular design is the transmission housing with pivots for assembling the upper and lower control arm，the stabilizer as well as the steering linkage．Optimization of the suspension, steering system and stabilizer bar has made for assembling the wheel reducer more accurate，then the optimization result feedbacks to modify the reducer design .For the purpose of guaranteeing the strength of the wheel reducer in work.
Key words: Wheel Reducer；Electric Vehicle；Electric Wheel；Planetary Gear Reducer；Electric Motor
目  录