变速器文献综述

1、文献综述 文献综述 题 目 乘用车二轴式五档变速器总成设计 学 院 专 业 学 生 学 号 指导教师 1 前言 变速器是汽车传动系统最主要的部件之一 它由变速传动机构和操纵机构组成 根据需要还可加装动力输出器 变速器的功用是改变传动比 扩大驱动轮转矩和转速的变化范围 以适应经常变化的行驶条件 如起步 加速 上坡等 同时使发动机在有利的工况下工作 在发动机旋转方向不变的前提下 使汽车能倒退行驶 利。

2、附 录 A 外文文献Manual transmissionManual transmission is the most basic of transmission of a type, its effect is changing, and provide the transmission reverse and neutral. Usually, the pilot on the clutch pedal through manipulation and in any HuanDangGan can choose between gear. There are a few manual transmission, such as motorcycles, cars, some transmission shift transmission allows only sequence, the transmission is called sequence shift transmission. In recent years, along with the electro。

3、附录 A 英文文献Transmission descriptionTransmission gearboxs function the engines output rotational speed is high, the maximum work rate and the maximum torque appears in certain rotational speed area. In order to display engines optimum performance, must have a set of variable speed gear, is coordinated the engine the rotational speed and wheels actual moving velocity. The transmission gearbox may in the automobile travel process, has the different gear ratio between the engine an。

4、1Transmission designAs we all know,automobile engine to a certain speed can be achieved under the best conditions, when compared issued by the power, fuel economy is relatively good. Therefore, we hope that the engine is always in the best of conditions to work under. However, the use of motor vehicles need to have different speeds, thus creating a conflict. Transmission through this conflict to resolve.Automotive Transmission role sum up in one sentence, called variable speed twisting, twisting。

5、附 录附录 A 英文文献Transmission descriptionTransmission gearboxs function the engines output rotational speed is high, the maximum work rate and the maximum torque appears in certain rotational speed area. In order to display engines optimum performance, must have a set of variable speed gear, is coordinated the engine the rotational speed and wheels actual moving velocity. The transmission gearbox may in the automobile travel process, has the different gear ratio between the engin。

6、附 录 AThe output of the engine speed is very high, the maximum power and the maximum torque in a certain speed area appears. In order to bring into full play the best performance engine, it must have a variable speed device, to coordinate the speed of the engine and the actual speed. Transmission can be in the course of driving in the car, and the engine between different ratios of produce, through the shift can make the engine to the best in the dynamic properties of state. The three main tra。

7、附 录How Manual Transmissions WorkIf you drive a stick-shift car, then you may have several questions floating in your head.How does the funny H pattern that I am moving this shift knob through have any relation to the gears inside the transmission? What is moving inside the transmission when I move the shifter? When I mess up and hear that horrible grinding sound, what is actually grinding? What would happen if I were to accidentally shift into reverse while I am speeding down the fr。

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11、附 录 附录 A 变速器介绍 发动机的输出转速非常高，最大功率及最大扭矩在一定的转速区出现。为了发挥发动机的最佳性能，就必须有一套变速装置，来协调发动机的转速和车轮的实际行驶速度。变速器可以在汽车行驶过程中，在发动机和车轮之间产生不同的变速比，通过换挡可以使发动机工作在其最佳的动力性能状态下。变速器的发展趋势是越来越复杂，自动化程度也越来越高，自动变速器将是未来的主流。 汽车变速器的任务是传递动力 ,并在动力的传递过程中改变传动比，以调节或变换发动机的特性，同时通过变速来适应不同的驾驶要求。由此可见，变 。

12、附录 1 译文 无级变速器的行星齿轮机构采用双行星齿轮机构 ,行星架上固定有内、外行星齿轮和右支架 ,其中右支架是通过螺栓固定在行星架上 ,外行星齿轮和齿圈啮合 ,内行星齿轮和太阳轮啮合。它们可以实现前进和倒档。 无级变速机构由金属传动带和主、被动工作轮组成。金属传动带由两百多个金属片和两组金属环组成 ,每个金属片的厚度为 两侧工作轮挤压力作用下传递动力。每组金属环由 9 或 12 片厚度为 带环叠合而成 ,金属环的功用是提供预紧力 ,在动力传递过程中 ,支撑和引导金属片的运动 ,有时承担部分转矩的传递 。主、被动工作轮由可动。

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15、附 录Market Analysis and Forecast of Light Vehicle Transmission1 Global transmission market statusThe current global vehicle production increases at an average annual rate of 3.5% per year and is expected to at least 89 million at 2015. With the increase in light vehicle production, manual transmission and planetary gear automatic transmission is also expected to yield increases, but they will be occupied a part of the CVT market share by the AMT. Compared with planetary gear transmission, AMT a。