专业英语汽车构造演示讲稿.ppt

Specialized English for Automobile Unit 22 Steering System What does the steering system consist of ? The steering system consists of a steering wheel, a steering shaft, a steering column, a steering gear housing with side and lower covers, a globoid worm, a pitman shaft with a triple roller and bearings and a pitman shaft adjusting screw. Diagram of car showing clutch location Pre-questions What are the classifications of steering system ? There are two types of the steering system. They are manual steering system and power steering system. Pre-questions Left knuckle Right knuckle adder type arm slide rod for turning steering knuckle arm main pull rod for turning steering lever deflector transmission shaft cardan joint steering handle steering shaft III. Exercises recirculating-ball steering gear SUV(Sport Utility Vehicle) linear motion rotational motion power steering steering column steerable wheel steering linkage knuckle arm hydraulic power steering system 循环球式转向器 运动型多用途汽车 线性运动 旋转运动 动力转向 转向柱 转向轮 转向杆系 转向节臂 液压助力转向系统 Translate the following expressions into Chinese. IV. Translate the following sentences into Chinese. 1. The manual steering system incorporates: steering wheel and column, a manual gearbox and pitman arm or a rack and pinion assembly, linkages, steering knuckles and ball joints, the wheel spindle assemblies. 2. In pitman arm system, the movement inside the steering box causes the pitman shaft and arm to rotate, applying leverage to the relay rod, which passes the movement to the tie rods. 3. Power steering systems add a hydraulic pump, fluid reservoir, hoses, and either a power assist unit mounted on, or integral with a steering gear assembly. 1.手动转向系统包括方向盘、转向柱、机械转向器和转向摇臂或齿轮齿条装置、 转向杆系、转向节和球头铰链、转向轮总成等组件。 2.在转向摇臂组件中，转向器的运动带动摇臂轴和摇臂旋转，并利用杠杆原理放大后通过转向直拉杆将运动传递到转向横拉杆。 3.动力转向系统包括液压泵、储液罐、油管、助力装置或其它转向装置总成必需的配备等组件。 V. Translate the following sentence