驱动桥Drive axle

驱动桥Drive axle(中文5000字,英文3000字)
驱动桥处于动力传动系的末端，其基本功能是增大由传动轴或变速器传来的转矩，并将动力合理的分配给左、右驱动轮，另外还承受作用于路面和车架或车身之间的垂直立、纵向力和横向力。驱动桥一般由主减速器、差速器、车轮传动装置和驱动桥壳等组成。
驱动桥的设计：
驱动桥设计应当满足如下基本要求：
1.选择的主减速比应能保证汽车具有最佳的动力性和燃料经济性。
2.外形尺寸要小，保证有必要的离地间隙。
3.齿轮及其他传动件工作平稳，噪声小。
4.在各种转速和载荷下具有高的传动效率。
5.在保证足够的强度、刚度条件下，应力求质量小，尤其是簧下质量应尽量小，以改善汽车平顺性。
6.与悬架导向机构运动协调，对于转向驱动桥，还应与转向机构运动相协调。
7.结构简单，加工工艺性好，制造容易，拆装、调整方便。

Drive axle
Drive axle powertrain at the end of their basic function is to increase the transmission came from the drive shaft or torque, and a reasonable distribution of power to the left and right wheel, in addition to acting on the road and under the frame or body legislation between the vertical, longitudinal and lateral force. General from the main drive axle reducer, differential, gear wheels and drive axle housings and other components.
  The design of the Drive axle:
  Drive axle should be designed to meet the basic requirements are as follows:
  1. Select the main reduction ratio should be able to ensure the car has the best power and fuel economy.
  2. Smaller size, to ensure that the necessary ground clearance.
  3. Gear and other pieces of the work of a smooth transmission,and small noise.
  4. In a variety of speed and load with a high transmission efficiency.
  5. In ensuring adequate strength and stiffness conditions, should strive for the quality of small, especially under the mass-spring should be as small as possible in order to improve vehicle ride comfort.
  6. And suspension movement-oriented coordination of steering drive axle, but also with the coordination of steering movement.