毕业设计（论文）-ESU7160型乘用车变速器传动系统设计精选.doc

各专业完整优秀毕业论文设计图纸 摘 要 本次设计的乘用车两轴变速器选择中心距的大小，齿轮的模数等，确定倒档的布置形式，确定齿轮的压力角，螺旋角，齿宽，齿形系数等，然后计算变速器的各档传动比，各齿轮的参数，通过变系数图查找计算变系数，然后对各档齿轮进行变位对齿轮进行校核。轴各段的长度和轴颈大小对轴和轴承进行校核计算 对于本次设计的变速器来说，其特点是：扭矩变化范围大可以满足不同的工况要求，结构简单而且采用挂档，可以使变速器挂档平稳，噪声降低。使用寿命长，工作时噪声低，没有直齿轮的啮合冲击现象，运行比较平稳可以满足汽车在不同的工况下的要求，从而达到其经济性和动力性的要求。 Design of Type ESU7160 Vehicle Gearbox Transmission System ABSTRACT This design is two shaft transmission of a car. First formulated the overall scheme of the transmission, computation select the size of the center distance, the gear, determine the module layout forms of reverse gear, determine the pressure Angle, spiral Angle, the tooth width and tooth coefficient calculation, etc., and then all the gear transmission, the gears transmission ratio of parameters, through the displacements coefficient graph, and then calculate the lookup displacements of each file coefficient of gear, and the gear shift test. The calculation of the length of the shaft paragraphs and shaft neck size, and the shaft and bearings of check calculation. The characteristic for the design of transmission is the torque changes range can satisfy different working conditions requirements, simple structure. In two axis structure, reliable, the structure is simple, but also adopted synchronizer shift, can make the transmission shifting smoothly, and lower noise. All transmission gears is inclined gear, the service life is long, low noise, no work straight gear meshing impact phenomenon, run more smoothly. Can meet different working conditions in the car, so as to achieve the requirements of its economy and performance requirements. The design was eventually relatively satisfactory completion, achieve the stated commitments to study contents. Key words: Ratio, block number, gear parameters, shaft, bearing ESU7160型乘用车变速器传动系统设计 冯 佳 0 引言 如今，中国已成为世界第一大汽车消费国，第一大汽车生产国，第一大潜在市场。但是，汽车工业非常依赖于合资模式，中国汽车工业的飞速发展并没有如期望的那样带来汽车产业竞争力的提升。相反，由于长期以来比较重视引进产品，没有在核心技术的消化吸收上下工夫，缺乏产品研发的实践，形不成产品研发的整体力量，导致我国汽车产品的