KD1060型货车设计（转向及前桥设计）【含3张CAD图纸】
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含3张CAD图纸
KD1060
货车
设计
转向
前桥
CAD
图纸
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外文资料及翻译Steering system Motor steering system: On the automobile uses for to change or restores its travel direction to suppose the organization to be called the motor turning system specially. Automobiles steering system is uses for to change the automobile travel direction and to maintain the automobile straight line travel organization Composes (1)To change the control mechanism basically mainly by the steering wheel, the steering axle, the steering tube column and so on to be composed. (2) Diverter becomes steering wheels rotation steering arms swinging or the rack axis straight reciprocating motion, and to changes the control force to carry on the enlargement the organization. The diverter fixes generally on the automobile frame or the automobile body, changes the control force after the diverter generally will also change the transmission direction. (3) Steering transmission system the strength which and the movement outputs the diverter passes to the wheel (knuckle), about and causes the wheel to carry on the deflection according to certain relations the organization.Type Crooked to energy difference, the steering system may divide into the machinery steering system and the power steering system two broad headings crooked. Mechanical steering system: And changes the transmission system by the diverter to be composed. Diverter: By the steering wheel, the steering wheel steering axle, changes meshing to pay (diverter) to be composed. Steering transmission system: By drop arm (drop arm), drag link, drag link arm, about trapezoidal arm, steering knuckle tie rod, if a dry bulb joint composes.Power steering system: Changes the augmenter constitution by mechanical steering system Canada.1.Mechanical steering system The mechanical steering system changes the energy by pilots physical strength achievement, all power transmission are the machinery. The mechanical steering system by changes the control mechanism, the diverter and changes the transmission system three major part to be composed.(1) steering control mechanismChanges the control mechanism by the steering wheel, the steering axle, the steering tube column and so on to be composed, its function is rotates the pilot steering wheels control force to pass to the divertor.(2) Divertor The diverter (also often is called steering unit) is completes from the rotary motion to the translation (or approximate straightline motion) a group of gear mechanism, simultaneously is also in the steering system speed reducer drive. At present the commonly used toothed wheel rack type, follows round the world the crank to refer to sells the type, the worm bearing adjuster crank to refer to sells the type, to follow round the world - the tooth rack tooth fan type, the worm bearing adjuster hoop type and so on. We mainly introduce the first several kinds.1) Gear rack type divertorThe gear rack type diverter divides the both sides output type and among (or single end) the output type two kinds .The both sides outputs gear rack type diverter, changes the gear shaft as the transmission vice-host moving parts and installs through the bearing in the diverter shell, its upper extreme through spline and universal joint sliding yoke and steering axle connection. With the steering gear meshing steering rack level arrangement, the both sides with change the steering knuckle tie rod through a ball place to be connected. The spring presses through the briquetting the rack depending in the gear, guarantees ceaseless meshing.Springs pretightening up force available adjustment thread plug adjustment. When rotates the steering wheel, the diverter gear-driven, causes with it meshing rack along the end motion, thus about causes the steering knuckle tie rod to lead about the knuckle to rotate, causes to change the wheel deflection, thus realizes motor turning.Middle output gear rack type diverter, its structure and principle of work and both sides output gear rack type diverter basic same, the difference lies in it to change the steering knuckle tie rod in steering racks middle with the bolt with about to be connected. On single-ended outputs gear rack type diverter, a racks end with changes the steering knuckle tie rod through the inside and outside bracket to be connected.2) Follows round the world-like the divertor Follows round the world-like the diverter is one of present domestic and foreign application most widespread structure patterns, generally has two-stage drive, the first level is screw rod nut transmission, the second level is tooth rack tooth fan transmission. In order to reduce between the steering screw steering nuts friction, the twos thread immediate contact, during is loaded with many steel balls, realizes the rolling friction. On the steering screw and the nut processes the profiled outline is two section or three section of not concentric circular arc composition approximate semicircle spiral groove. The twos spiral groove can coordinate to form the approximate circular cross section the spiral tubular channel. The nut side has two pair of through holes, may henceforth the vent plug enter the steel ball in the helix channel. Outside the steering nut has two steel ball drive pipes, each drive pipes both sides insert the nut side separately in a pair of through hole. In the drive pipe has also packed the steel ball. Thus, in two drive pipes and nuts spiral tubular channels combine two respectively independent seals the steel ball the flow channel . When the steering screw rotates, passes to the steering nut through the steel ball the strength, the nut namely along the end motion. At the same time, friction couple function between the screw rod and the nut and under the steel ball, all steel balls then rolls in the spiral tubular channel, formation ball class . When the diverter works, two rows steel balls are only in the respective seal flow channel internal recycling, will leave.3) The worm bearing adjuster crank refers to sells the type diverter The worm bearing adjuster crank refers to sells the type diverters transmissionvice-(by the steering worm primarily moving parts, it is installs from the moving parts in the rocker arm shaft crank nose refers to sells. When the steering worm rotates, refers to with it meshing sells namely circles the rocker arm shaft spool thread along the circular, and leads the rocker arm shaft rotation.(3) Steering transmission system Steering transmission system the function is the strength which and the movement outputs the diverter passes to the steering axle both sides the knuckle, causes the both sides wheering wheel deflection, and causes two wheering wheel deflection angles according to certain relational change, guarantees when motor turning the wheel and the ground relative sliding is as far as possible small.1) Uses for parts with the non-independent suspension fork changes the transmission system mainly to include the steering arm, to change the drag link, the steering, and the steering trapezium. In the front axle is only in the steering axle situation, by changes the steering trapezium general arrangement which the steering knuckle tie rod and the left and right trapezoidal arm are composed after the front axle, when the wheering wheel is in with the automobile straight line travel corresponding neutral point, trapezoidal arm and steering knuckle tie rod in and path parallel plane (horizontal plane) in angle of intersection 90.In the engine position is low or in the steering axle concurrently sufficient driving axles situation, to avoid the movement interference, often steering trapezium arrangement before the front axle, this time above angle of intersection 90, if the steering arm is not around swings in the automobile fore-and-aft plane, but is shaking right toward left with the path parallel plane, then may change the drag link horizontal, and sells taking advantage of ball leads directly changes the steering knuckle tie rod, thus pushes somebody into doing something the both sides trapezoidal arm rotation.2) Uses for parts with the independent suspension fork changes the transmission systemWhen wheering wheel independent suspension, each wheering wheel needs to be opposite in the frame makes the independence movement, thus the steering axle must be the separation type. With this corresponding, changes in the transmission system the steering trapezium also to be the separation type.3) Steering drag link.Changes drag links function is the strength which and the movement transmits the steering arm passes to the steering trapezium arm (or steering). It receives the strength already has the pulling force, also to have the pressure, therefore the drag link is uses the high quality special steel products manufacture, guarantees the operation reliable. In wheering wheel deflection or because of suspension fork elastic deformation when is opposite beats in the frame, changes the drag link and the steering arm and the steering relative motion is the space motion, for does not have the movement interference, the above three connection uses the pin ball. 转向系统 汽车转向系统：汽车上用来改变或恢复其行驶方向的专设机构称为汽车转向系统。汽车的转向系统是用来改变汽车行驶方向和保持汽车直线行驶的机构基本组成(1)转向操纵机构主要由转向盘、转向轴、转向管柱等组成。(2)转向器将转向盘的转动变为转向摇臂的摆动或齿条轴的直线往复运动，并对转向操纵力进行放大的机构。转向器一般固定在汽车车架或车身上，转向操纵力通过转向器后一般还会改变传动方向。(3)转向传动机构将转向器输出的力和运动传给车轮(转向节)，并使左右车轮按一定关系进行偏转的机构。类型按转向能源的不同，转向系统可分为机械转向系统和动力转向系统两大类。机械转向系：由转向器和转向传动机构组成.转向器：由方向盘，方向盘转向轴，转向啮合付(转向器)组成.转向传动机构：由转向臂(转向垂臂)，直拉杆，直拉杆臂，左右梯形臂，横拉杆，若干球头关节组成.动力转向系：由机械转向系加转向加力装置构成.1机械转向系 机械转向系以驾驶员的体力作为转向能源，其中所有传力件都是机械的。机械转向系由转向操纵机构、转向器和转向传动机构三大部分组成。（1）转向操纵机构 转向操纵机构由方向盘、转向轴、转向管柱等组成，它的作用是将驾驶员转动转向盘的操纵力传给转向器。（2 ）转向器 转向器(也常称为转向机)是完成由旋转运动到直线运动(或近似直线运动)的一组齿轮机构，同时也是转向系中的减速传动装置。 目前较常用的有齿轮齿条式、循环球曲柄指销式、蜗杆曲柄指销式、循环球-齿条齿扇式、蜗杆滚轮式等。我们主要介绍前几种。1）齿轮齿条式转向器 齿轮齿条式转向器分两端输出式和中间（或单端）输出式两种。 两端输出的齿轮齿条式转向器，作为传动副主动件的转向齿轮轴通过轴承和安装在转向器壳体中，其上端通过花键与万向节叉和转向轴连接。与转向齿轮啮合的转向齿条水平布置，两端通过球头座与转向横拉杆相连。弹簧通过压块将齿条压靠在齿轮上，保证无间隙啮合。 弹簧的预紧力可用调整螺塞调整。当转动转向盘时，转向器齿轮转动，使与之啮合的齿条沿轴向移动，从而使左右横拉杆带动转向节左右转动，使转向车轮偏转，从而实现汽车转向。 中间输出的齿轮齿条式转向器，其结构及工作原理与两端输出的齿轮齿条式转向器基本相同，不同之处在于它在转向齿条的中部用螺栓与左右转向横拉杆相连。在单端输出的齿轮齿条式转向器上，齿条的一端通过内外托架
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