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1、外文资料及翻译Steering system (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
2、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
3、 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 b
4、road 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,
5、 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 achi
6、evement, 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, t
7、he 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
8、 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
9、 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 diverte
10、r, 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
11、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 dive
12、rter 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 bo
13、th 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 i
14、nside 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 se
15、cond 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 sec
16、tion 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
