機(jī)械畢業(yè)設(shè)計(jì)英文外文翻譯-轉(zhuǎn)向系統(tǒng)中英合體

1、<p><b>　　外文資料及翻譯</b></p><p>　　Steering system</p><p>　　(1)To change the control mechanism basically mainly by the steering wheel, the steering axle, the steering tube column and

2、 so on to be composed. </p><p>　　(2) Diverter becomes steering wheel's rotation steering arm's swinging or the rack axis straight reciprocating motion, and to changes the control force to carry on th

3、e 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.

4、 </p><p>　　(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 certai

5、n relations the organization.</p><p><b>　　Type </b></p><p>　　Crooked to energy difference, the steering system may divide into the machinery steering system and the power steering sy

6、stem two broad headings crooked. </p><p>　　Mechanical steering system: And changes the transmission system by the diverter to be composed. </p><p>　　Diverter: By the steering wheel, the steering

7、 wheel steering axle, changes meshing to pay (diverter) to be composed. </p><p>　　Steering transmission system: By drop arm (drop arm), drag link, drag link arm, about trapezoidal arm, steering knuckle tie r

8、od, if a dry bulb joint composes.</p><p>　　Power steering system: Changes the augmenter constitution by mechanical steering system Canada.</p><p>　　1.Mechanical steering system The mechanical st

9、eering system changes the energy by pilot's physical strength achievement, all power transmission are the machinery. The mechanical steering system by changes the control mechanism, the diverter and changes the trans

10、mission system three major part to be composed.</p><p>　　(1) steering control mechanism</p><p>　　Changes the control mechanism by the steering wheel, the steering axle, the steering tube column

11、and so on to be composed, its function is rotates the pilot steering wheel's control force to pass to the divertor.</p><p>　　(2) Divertor </p><p>　　The diverter (also often is called steerin

12、g 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 us

13、ed 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 be

14、aring adjuster hoo</p><p>　　1) Gear rack type divertor</p><p>　　The gear rack type diverter divides the both sides output type and among (or single end) the output type two kinds .The both sides

15、 output's 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 slidin

16、g yoke and steering axle connection. With the steering gear meshing steering rack level arrangement, the both sides with change the steering knuckle tie r</p><p>　　Spring's pretightening up force availab

17、le 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

18、to rotate, causes to change the wheel deflection, thus realizes motor turning.</p><p>　　Middle output gear rack type diverter, its structure and principle of work and both sides output gear rack type diverte

19、r basic same, the difference lies in it to change the steering knuckle tie rod in steering rack's middle with the bolt with about to be connected. On single-ended output's gear rack type diverter, a rack's en

20、d with changes the steering knuckle tie rod through the inside and outside bracket to be connected.</p><p>　　2) Follows round the world-like the divertor</p><p>　　Follows round the world-like th

21、e 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 tra

22、nsmission.</p><p>　　In order to reduce between the steering screw steering nut's friction, the two's thread immediate contact, during is loaded with many steel balls, realizes the rolling friction. O

23、n 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 two's spiral groove can coordinate

24、to form the approximate circular cross section the spiral tubular channel.</p><p>　　The nut side has two pair of through holes, may henceforth the vent plug enter the steel ball in the helix channel. Outside

25、 the steering nut has two steel ball drive pipes, each drive pipe's 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

26、nut's spiral tubular channels combine two respectively independent seals the steel ball " the flow channel ".</p><p>　　When the steering screw rotates, passes to the steering nut through the st

27、eel 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,

28、 formation " ball class ". When the diverter works, two rows steel balls are only in the respective seal flow channel internal recycling, will leave.</p><p>　　3) The worm bearing adjuster crank ref

29、ers to sells the type diverter</p><p>　　The worm bearing adjuster crank refers to sells the type diverter's transmissionvice-(by the steering worm primarily moving parts, it is installs from the moving p

30、arts 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

31、 rotation.</p><p>　　(3) Steering transmission system</p><p>　　Steering transmission system the function is the strength which and the movement outputs the diverter passes to the steering axle bo

32、th 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 relati

33、ve sliding is as far as possible small.</p><p>　　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 steer

34、ing, 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 a

35、re composed after the front axle, when the wheering wheel is in with the automobile straight line travel corresponding neu</p><p>　　Uses for parts with the independent suspension fork changes the transmissio

36、n 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, chan

37、ges in the transmission system the steering trapezium also to be the separation type.</p><p><b>　　,</b></p><p>　　As shown in Figure 9 b. If Pitman is not in the vehicle longitudinal

38、plane backwards and forwards, but is in the plane parallel to the road to shake, you can bring the steering linkage 3 exhaust, and ball head pin directly driven steering tie rod 6, thus pushing the sides of a trapezoid a

39、rm. 2) and independent suspension with the steering linkage when steering wheel independent suspension, each steering wheel needs relative to the frame for independence movement, thereby steering bridge must be </p>

40、;<p>　　The role of steering lever is passed from the Pitman force and motion to steering arm (or steering). It force existing tension and pressure, so direct lever is is the use of high-quality special steel manuf

41、acturing, in order to ensure reliable operation. Linkage of typical structure as shown in Figure 11. In the steering wheel to deflect or elastic deformation due to the suspension and relative to the frame beats, steering

42、 lever and Pitman and steering relative movements are spatial movement, in</p><p>　　Use mechanical steering can implement steering, when steering axle load larger that the pilot's manual as steering ener

43、gy is difficult to turn smoothly. Power steering system is in mechanical steering system on the basis of a set of steering device. Steering device reduces driver operated steering wheel. Steering energy from the driver&#

44、39;s physical strength and motor (or motors), engine (or motors) accounted for the major part, through the steering device. Normally, pilots can easily control the s</p><p><b>　　轉(zhuǎn)向系統(tǒng)</b></p>

45、;<p>　　汽車(chē)轉(zhuǎn)向系統(tǒng)：汽車(chē)上用來(lái)改變或恢復(fù)其行駛方向的專設(shè)機(jī)構(gòu)稱為汽車(chē)轉(zhuǎn)向系統(tǒng)。汽車(chē)的轉(zhuǎn)向系統(tǒng)是用來(lái)改變汽車(chē)行駛方向和保持汽車(chē)直線行駛的機(jī)構(gòu)</p><p><b>　　基本組成</b></p><p>　　(1)轉(zhuǎn)向操縱機(jī)構(gòu)主要由轉(zhuǎn)向盤(pán)、轉(zhuǎn)向軸、轉(zhuǎn)向管柱等組成。</p><p>　　(2)轉(zhuǎn)向器將轉(zhuǎn)向盤(pán)的轉(zhuǎn)動(dòng)變?yōu)檗D(zhuǎn)向搖臂的

46、擺動(dòng)或齒條軸的直線往復(fù)運(yùn)動(dòng)，并對(duì)轉(zhuǎn)向操縱力進(jìn)行放大的機(jī)構(gòu)。轉(zhuǎn)向器一般固定在汽車(chē)車(chē)架或車(chē)身上，轉(zhuǎn)向操縱力通過(guò)轉(zhuǎn)向器后一般還會(huì)改變傳動(dòng)方向。</p><p>　　(3)轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)將轉(zhuǎn)向器輸出的力和運(yùn)動(dòng)傳給車(chē)輪(轉(zhuǎn)向節(jié))，并使左右車(chē)輪按一定關(guān)系進(jìn)行偏轉(zhuǎn)的機(jī)構(gòu)。</p><p><b>　　類(lèi)型</b></p><p>　　按轉(zhuǎn)向能源的不同，轉(zhuǎn)向系統(tǒng)

47、可分為機(jī)械轉(zhuǎn)向系統(tǒng)和動(dòng)力轉(zhuǎn)向系統(tǒng)兩大類(lèi)。</p><p>　　機(jī)械轉(zhuǎn)向系：由轉(zhuǎn)向器和轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)組成.</p><p>　　轉(zhuǎn)向器：由方向盤(pán)，方向盤(pán)轉(zhuǎn)向軸，轉(zhuǎn)向嚙合付(轉(zhuǎn)向器)組成.</p><p>　　轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)：由轉(zhuǎn)向臂(轉(zhuǎn)向垂臂)，直拉桿，直拉桿臂，左右梯形臂，橫拉桿，若干球頭關(guān)節(jié)組成.</p><p>　　動(dòng)力轉(zhuǎn)向系：由機(jī)械轉(zhuǎn)向系加

48、轉(zhuǎn)向加力裝置構(gòu)成.</p><p><b>　　1．機(jī)械轉(zhuǎn)向系</b></p><p>　　機(jī)械轉(zhuǎn)向系以駕駛員的體力作為轉(zhuǎn)向能源，其中所有傳力件都是機(jī)械的。機(jī)械轉(zhuǎn)向系由轉(zhuǎn)向操縱機(jī)構(gòu)、轉(zhuǎn)向器和轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)三大部分組成。</p><p><b>　?。?）轉(zhuǎn)向操縱機(jī)構(gòu)</b></p><p>　　轉(zhuǎn)向操

49、縱機(jī)構(gòu)由方向盤(pán)、轉(zhuǎn)向軸、轉(zhuǎn)向管柱等組成，它的作用是將駕駛員轉(zhuǎn)動(dòng)轉(zhuǎn)向盤(pán)的操縱力傳給轉(zhuǎn)向器。</p><p><b>　?。? ）轉(zhuǎn)向器</b></p><p>　　轉(zhuǎn)向器(也常稱為轉(zhuǎn)向機(jī))是完成由旋轉(zhuǎn)運(yùn)動(dòng)到直線運(yùn)動(dòng)(或近似直線運(yùn)動(dòng))的一組齒輪機(jī)構(gòu)，同時(shí)也是轉(zhuǎn)向系中的減速傳動(dòng)裝置。 </p><p>　　目前較常用的有齒輪齒條式、循環(huán)球曲柄指銷(xiāo)式、

50、蝸桿曲柄指銷(xiāo)式、循環(huán)球-齒條齒扇式、蝸桿滾輪式等。我們主要介紹前幾種。</p><p>　　1）齒輪齒條式轉(zhuǎn)向器</p><p>　　齒輪齒條式轉(zhuǎn)向器分兩端輸出式和中間（或單端）輸出式兩種。</p><p>　　兩端輸出的齒輪齒條式轉(zhuǎn)向器，作為傳動(dòng)副主動(dòng)件的轉(zhuǎn)向齒輪軸通過(guò)軸承和安裝在轉(zhuǎn)向器殼體中，其上端通過(guò)花鍵與萬(wàn)向節(jié)叉和轉(zhuǎn)向軸連接。與轉(zhuǎn)向齒輪嚙合的轉(zhuǎn)向齒條水平布置

51、，兩端通過(guò)球頭座與轉(zhuǎn)向橫拉桿相連。彈簧通過(guò)壓塊將齒條壓靠在齒輪上，保證無(wú)間隙嚙合。</p><p>　　彈簧的預(yù)緊力可用調(diào)整螺塞調(diào)整。當(dāng)轉(zhuǎn)動(dòng)轉(zhuǎn)向盤(pán)時(shí)，轉(zhuǎn)向器齒輪轉(zhuǎn)動(dòng)，使與之嚙合的齒條沿軸向移動(dòng)，從而使左右橫拉桿帶動(dòng)轉(zhuǎn)向節(jié)左右轉(zhuǎn)動(dòng)，使轉(zhuǎn)向車(chē)輪偏轉(zhuǎn)，從而實(shí)現(xiàn)汽車(chē)轉(zhuǎn)向。</p><p>　　中間輸出的齒輪齒條式轉(zhuǎn)向器，其結(jié)構(gòu)及工作原理與兩端輸出的齒輪齒條式轉(zhuǎn)向器基本相同，不同之處在于它在轉(zhuǎn)向齒條

52、的中部用螺栓與左右轉(zhuǎn)向橫拉桿相連。在單端輸出的齒輪齒條式轉(zhuǎn)向器上，齒條的一端通過(guò)內(nèi)外托架與轉(zhuǎn)向橫拉桿相連。</p><p><b>　　2）循環(huán)球式轉(zhuǎn)向器</b></p><p>　　循環(huán)球式轉(zhuǎn)向器是目前國(guó)內(nèi)外應(yīng)用最廣泛的結(jié)構(gòu)型式之一， 一般有兩級(jí)傳動(dòng)副，第一級(jí)是螺桿螺母?jìng)鲃?dòng)副，第二級(jí)是齒條齒扇傳動(dòng)副。</p><p>　　為了減少轉(zhuǎn)向螺桿轉(zhuǎn)向

53、螺母之間的摩擦，二者的螺紋并不直接接觸，其間裝有多個(gè)鋼球，以實(shí)現(xiàn)滾動(dòng)摩擦。轉(zhuǎn)向螺桿和螺母上都加工出斷面輪廓為兩段或三段不同心圓弧組成的近似半圓的螺旋槽。二者的螺旋槽能配合形成近似圓形斷面的螺旋管狀通道。</p><p>　　螺母?jìng)?cè)面有兩對(duì)通孔，可將鋼球從此孔塞入螺旋形通道內(nèi)。轉(zhuǎn)向螺母外有兩根鋼球?qū)Ч埽扛鶎?dǎo)管的兩端分別插入螺母?jìng)?cè)面的一對(duì)通孔中。導(dǎo)管內(nèi)也裝滿了鋼球。這樣，兩根導(dǎo)管和螺母內(nèi)的螺旋管狀通道組合成兩條各自

54、獨(dú)立的封閉的鋼球"流道"。</p><p>　　轉(zhuǎn)向螺桿轉(zhuǎn)動(dòng)時(shí)，通過(guò)鋼球?qū)⒘鹘o轉(zhuǎn)向螺母，螺母即沿軸向移動(dòng)。同時(shí)，在螺桿及螺母與鋼球間的摩擦力偶作用下，所有鋼球便在螺旋管狀通道內(nèi)滾動(dòng)，形成"球流"。在轉(zhuǎn)向器工作時(shí)，兩列鋼球只是在各自的封閉流道內(nèi)循環(huán)，不會(huì)脫出。</p><p>　　3）蝸桿曲柄指銷(xiāo)式轉(zhuǎn)向器</p><p>　　

55、蝸桿曲柄指銷(xiāo)式轉(zhuǎn)向器的傳動(dòng)副(以轉(zhuǎn)向蝸桿為主動(dòng)件，其從動(dòng)件是裝在搖臂軸曲柄端部的指銷(xiāo)。轉(zhuǎn)向蝸桿轉(zhuǎn)動(dòng)時(shí)，與之嚙合的指銷(xiāo)即繞搖臂軸軸線沿圓弧運(yùn)動(dòng)，并帶動(dòng)搖臂軸轉(zhuǎn)動(dòng)。</p><p><b>　?。?）轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)</b></p><p>　　轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)的功用是將轉(zhuǎn)向器輸出的力和運(yùn)動(dòng)傳到轉(zhuǎn)向橋兩側(cè)的轉(zhuǎn)向節(jié)，使兩側(cè)轉(zhuǎn)向輪偏轉(zhuǎn)，且使二轉(zhuǎn)向輪偏轉(zhuǎn)角按一定關(guān)系變化，以保證汽車(chē)轉(zhuǎn)向

56、時(shí)車(chē)輪與地面的相對(duì)滑動(dòng)盡可能小。</p><p>　　1）與非獨(dú)立懸架配用的轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)</p><p>　　與非獨(dú)立懸架配用的轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)主要包括轉(zhuǎn)向搖臂、轉(zhuǎn)向直拉桿、轉(zhuǎn)向節(jié)臂、和轉(zhuǎn)向梯形。在前橋僅為轉(zhuǎn)向橋的情況下，由轉(zhuǎn)向橫拉桿和左、右梯形臂組成的轉(zhuǎn)向梯形一般布置在前橋之后，當(dāng)轉(zhuǎn)向輪處于與汽車(chē)直線行駛相應(yīng)的中立位置時(shí)，梯形臂與橫拉桿在與道路平行的平面(水平面)內(nèi)的交角＞90。</p

57、><p>　　在發(fā)動(dòng)機(jī)位置較低或轉(zhuǎn)向橋兼充驅(qū)動(dòng)橋的情況下，為避免運(yùn)動(dòng)干涉，往往將轉(zhuǎn)向梯形布置在前橋之前，此時(shí)上述交角＜90，若轉(zhuǎn)向搖臂不是在汽車(chē)縱向平面內(nèi)前后擺動(dòng)，而是在與道路平行的平面向左右搖動(dòng)，則可將轉(zhuǎn)向直拉桿橫置，并借球頭銷(xiāo)直接帶動(dòng)轉(zhuǎn)向橫拉桿，從而推使兩側(cè)梯形臂轉(zhuǎn)動(dòng)。</p><p>　　2）與獨(dú)立懸架配用的轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)</p><p>　　當(dāng)轉(zhuǎn)向輪獨(dú)立懸掛時(shí)，每

58、個(gè)轉(zhuǎn)向輪都需要相對(duì)于車(chē)架作獨(dú)立運(yùn)動(dòng)，因而轉(zhuǎn)向橋必須是斷開(kāi)式的。與此相應(yīng)，轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)中的轉(zhuǎn)向梯形也必須是斷開(kāi)式的。</p><p><b>　　3）轉(zhuǎn)向直拉桿</b></p><p>　　轉(zhuǎn)向直拉桿的作用是將轉(zhuǎn)向搖臂傳來(lái)的力和運(yùn)動(dòng)傳給轉(zhuǎn)向梯形臂(或轉(zhuǎn)向節(jié)臂)。它所受的力既有拉力、也有壓力，因此直拉桿都是采用優(yōu)質(zhì)特種鋼材制造的，以保證工作可靠。在轉(zhuǎn)向輪偏轉(zhuǎn)或因懸架彈性變