【正文】 圓周 力： tF =cos nF?= =； 二、設(shè)計參數(shù) 徑向力 rF = (N)； 軸向力 aF =(N)； 圓周力 tF = (N)； 軸頸直徑 d1=40 (mm)； 轉(zhuǎn)速 n=1150 (r/min)； 要求壽命 Lh39。 mm； 軸的直徑 d =42 mm； 鍵的類型 sType =A 型 ； 鍵的截面尺寸 b h =12x8 mm； 鍵的長度 L =22 mm； 鍵的有效長度 L0 = mm； 接觸高度 k = mm； 最弱的材料 Met =鋼 ； 本科生畢業(yè)設(shè)計（論文） 17 載荷類型 PType =靜載荷 ； 許用應(yīng)力 [σ p] =135 MPa； 計算應(yīng)力 σ p = MPa； 校核計算結(jié)果： σ≤ [σ ] 滿足 。 本科生畢業(yè)設(shè)計（論文） 19 圖 42 齒輪 2 毛坯：鍛件。 圖 撥叉軸 毛坯：鍛件。 工序： 10 銑端面； 20 銑另一端面； 30 粗鏜 φ 42 孔； 40 車外圓（ φ 62，φ 92）； 50 粗鏜 φ 62 孔； 60 半精鏜φ 42 孔； 70 磨φ 62 孔； 80 磨φ 62 孔端面； 80 車 1： 5 錐面； 90 倒圓角； 100 倒角； 110 鉆孔φ 7； 120 鉆孔φ 2； 130 最終檢驗。 20CrMnTi 的工藝性能較好，鍛造后以正火來改善其切削加工性。 軸材料選擇 20CrMnTi其淬透性較高 ,在保證淬透情況下 ,具有較高的強度和韌性 ,特別是具有較高的低溫沖擊韌性 .20CrMnTi 表面滲碳硬化處理用鋼 .良好的加工性 ,特加工變形微小 ,抗疲勞性能相當(dāng)好 .用途 :用于齒輪 ,軸類 ,在保證淬透情況下 ,具有較高的強度和韌性經(jīng)滲碳淬火后具有硬而耐磨的表面與堅韌的心部 ,特別是具有較高的低溫沖擊韌性 。 軸承蓋材料選擇 軸承蓋材料選用 HT200。 本科生畢業(yè)設(shè)計（論文） 24 第五章 取力器潤滑與密 封 在取力器的總成中， 為減少內(nèi)摩擦引起的零件磨損， 潤滑是很重要的環(huán)節(jié)，首先 須在殼體內(nèi)注入齒輪油 ， 采用 飛濺方式潤滑各齒輪副， 利用齒輪的轉(zhuǎn)動講齒輪油送到 軸與軸承等零件表面。 本科生畢業(yè)設(shè)計（論文） 25 第六章 結(jié)論 以上是對 EQ1061 貨車變速器取力器的設(shè)計。取力器的發(fā)展進步便顯得尤 為重要了 通過計算，該取力器到達設(shè)計要求。王老師就是我們心中的榜樣，前進的目標(biāo)，學(xué)習(xí)他那一絲不茍，嚴(yán)謹(jǐn)治學(xué)的優(yōu)良作風(fēng)，我想這也是伴隨著我一生的寶貴財富。d2=26。an=20*pi/180。 a1=85。a5=180。 Xg=Pn*a1/a2 Yg=Rn*a1/a2 Zg=Qn G=sqrt(Xg^2+Yg^2) Xc=PnXg Yc=RnYg C=sqrt(Xc^2+Yc^2) Xf=(Pn*a3Po*a4)/a5 Yf=(Pn*a3+Ro*a4+Qo*d2/2Qn*d8/2)/a5 Zf=QnQo F=sqrt(Xf^2+Yf^2) Xe=Po+XfPn Ye=Ro+RnYf E=sqrt(Xe^2+Ye^2) Xb=(Po*a6Xc*a7)/a8 Yb=(Ro*a6+Yc*a7Qo*d1/2)/a8 Zb=Qo X=sqrt(Xb^2+Yb^2) Xa=Xb+XcPo 本科生畢業(yè)設(shè)計（論文） 29 Ya=YbRoYc A=sqrt(Xa^2+Ya^2) z1=12。 Ms=Rn*a3。 Wt=pi*d^3/16。 fc=Rn*a3^2*(a5a3)^2/(3*210000*I*a5) fs=Pn*a3^2*(a5a3)^2/(3*210000*I*a5) bbbbb=Rn*a3*(a5a3)*(a3(a5a3))/(3*210000*I*a5)。 y1=。 z=[z2]。 y=[y2]。 tg2=temax*z2/z3。%從動齒輪 kt=。 w=2.*Tg1.*cos(bb)*k1*kf2./(pi.*mn.^3.*zw.*kcw*km.*y1)%δw(1) ww=2.*Tg2.*kf1*k1./(pi.*m.^3.*z.*kw*km.*y2)%δw(2) wzw=2.*Tg2.*kf2*k1./(pi.*m.^3.*zzw.*kzw*km.*y3)%δw(3) E=*10^5。 dzw=mn.*zw。 dbzw=m*zzw。 rb=.*db。 bw=mn.*kcw。s rapid development of the national economy, private motor vehicles has grown rapidly to market demand. According to the information shows that heavy modification of the Special Purpose Vehicle after accounting for around 50% of the total output。s interface, speed, power varies. Check power transmission device taken from the car, and the main gearbox design is reserved for taking power from power windows, a small number of check from the engine flywheel power, such as cement mixer from the edge. Special Purpose Vehicle as a result of the diversity of professional installation and decided to take power device products, specifications, form of diversity. Automobile chassis parts and ponents manufacturers to provide unified transmission plants to be large amount of power from several devices. For example, the Dongfeng Motor truck only to adapt the form of flange connecting the output from the power device。s speed, torque output, interface, and various forms of the engine chassis, power transmission from the location of windows, installation size and check the parameters of our gear, the center distance of such information, classification of the design, do a good job in general, the serialization and standardization work, the manufacturing costs down to meet the diverse needs of the depot modification. Give full play to the professional function, to solve the worries. As well as the chassis manufacturing plant due to take force to resolve the factors which might have affected the sale of the chassis. Check power is installed in the engine or transmission on the independence of the annex, not the dominant transmission plant products, its varieties, the output value is not low, but dedicated to OEM chassis market, only production of largevolume, singlespecies power devices from the dump truck. Check power device manufacturing costs, usually from a singlestage power in 300 to 400 yuan / Taiwan, twostage device to check power 400 ~ 500 yuan / Taiwan, sales price in the 800 ~ 1000 yuan / Taiwan, with special changes in large, sales price of a small number in a thousand dollars. Special Purpose Vehicle due to the added value of higher sales prices, check our devices is essential for small manufacturers and products, adapted to their depot to have been accepted by several hundred do。s business from strength to bear the role of convergence. Special Purpose Vehicle of the rapid development of power devices from the contradiction between the slow development of an increasingly prominent lag. There is 本科生畢業(yè)設(shè)計（論文） 34 market demand, a result, low technological contents, the check shoddy device will have a market power, detrimental to the healthy development of Special Purpose Vehicle, which requires trade associations to regulate the market. Led by the industry associations to set up a set of R amp。s future. What is the admission of Power? Take power in the Special Purpose Vehicle in what role? Special Purpose Vehicle in two parts: The first dedicated vehicle chassis from the major power on the Special Purpose Vehicle Research from market analysis and automobile plant manufacturing, high universality. Second, a dedicated device is a dedicated vehicle to achieve its special features the work of installation, modification 本科生畢業(yè)設(shè)計（論文） 32 by depot manufacturing, professional and strong. Special devicespecific functions to achieve its power e from. But also from the chassis to the transmission system, how to lose power transmission devices dedicated to rely on the check on the pletion of power