【正文】 a；計(jì)算應(yīng)力　σp = MPa；校核計(jì)算結(jié)果： σ≤[σ] 滿足。 圖42 齒輪2毛坯：鍛件。 撥叉軸 毛坯：鍛件。工序：10 銑端面；20 銑另一端面；30 粗鏜φ42孔；40 車(chē)外圓（φ62，φ92）；50 粗鏜φ62孔；60 半精鏜φ42孔；70 磨φ62孔；80 磨φ62孔端面；80 車(chē)1：5錐面；90 倒圓角；100 倒角；110 鉆孔φ7；120 鉆孔φ2；130 最終檢驗(yàn)。20CrMnTi的工藝性能較好，鍛造后以正火來(lái)改善其切削加工性。20CrMnTi其淬透性較高,在保證淬透情況下,具有較高的強(qiáng)度和韌性,特加工變形微小,:用于齒輪,軸類(lèi),在保證淬透情況下,具有較高的強(qiáng)度和韌性經(jīng)滲碳淬火后具有硬而耐磨的表面與堅(jiān)韌的心部,特別是具有較高的低溫沖擊韌性。軸承蓋材料選用HT200。第五章 取力器潤(rùn)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(rùn)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(rùn)滑各齒輪副，利用齒輪的轉(zhuǎn)動(dòng)講齒輪油送到軸與軸承等零件表面。第六章 結(jié)論以上是對(duì)EQ1061貨車(chē)變速器取力器的設(shè)計(jì)。取力器的發(fā)展進(jìn)步便顯得尤為重要了通過(guò)計(jì)算，該取力器到達(dá)設(shè)計(jì)要求。王老師就是我們心中的榜樣，前進(jìn)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(cái)富。d2=26。an=20*pi/180。a1=85。a5=180。Xg=Pn*a1/a2Yg=Rn*a1/a2Zg=QnG=sqrt(Xg^2+Yg^2)Xc=PnXgYc=RnYgC=sqrt(Xc^2+Yc^2)Xf=(Pn*a3Po*a4)/a5Yf=(Pn*a3+Ro*a4+Qo*d2/2Qn*d8/2)/a5Zf=QnQoF=sqrt(Xf^2+Yf^2)Xe=Po+XfPnYe=Ro+RnYfE=sqrt(Xe^2+Ye^2)Xb=(Po*a6Xc*a7)/a8Yb=(Ro*a6+Yc*a7Qo*d1/2)/a8Zb=QoX=sqrt(Xb^2+Yb^2)Xa=Xb+XcPoYa=YbRoYcA=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(dòng)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 dollars more. Take power from the side is a highmargin products. Take as long as the banner of the Institute of Power tree up, step up publicity in the research and development, quality efforts, do a good job in three of the work of lower manufacturing costs, so that modified depot know that you do get in power, and the quality of well, step by step will be large scale, and fragmented the munity39。世界上發(fā)達(dá)國(guó)家專(zhuān)用汽車(chē)的品種多達(dá)五六千種。改裝車(chē)廠更是像雨后的春筍遍布全國(guó)。什么是取力器？取力器在專(zhuān)用汽車(chē)中起什么作用？專(zhuān)用汽車(chē)分兩部分：一是專(zhuān)用汽車(chē)底盤(pán)由各大關(guān)于專(zhuān)用汽車(chē)取力器的研究與市場(chǎng)分析汽車(chē)廠制造，通用性強(qiáng)。取力器是把發(fā)動(dòng)機(jī)的動(dòng)力輸給專(zhuān)用裝置的一個(gè)特殊部件。汽車(chē)底盤(pán)零部件制造商變速箱廠只能提供通用性強(qiáng)用量大的幾種取力器。一個(gè)改裝車(chē)廠少的年生產(chǎn)幾十臺(tái)，多的幾百臺(tái)車(chē)，沒(méi)有能力和精力來(lái)生產(chǎn)適應(yīng)于專(zhuān)用裝置的取力器，只能依靠底盤(pán)零部件生產(chǎn)企業(yè)。為了達(dá)到滿意的專(zhuān)用功能，改裝車(chē)廠也尋找一些廠家生產(chǎn)取力器，終因數(shù)量少，品種多，投入與產(chǎn)出相差大，無(wú)利可圖不愿干，或者勉強(qiáng)干了質(zhì)量也保證不了。因是仿制，得不到變速箱準(zhǔn)確技術(shù)參數(shù)，如取力齒輪對(duì)的中心距、取力齒輪的參數(shù)、安裝尺寸等，導(dǎo)致取力器不能正常工作，質(zhì)量差，壽命短，甚至引起變速箱齒輪打齒，影響變速箱的正常使用。由行業(yè)協(xié)會(huì)組織牽頭成立一個(gè)集研發(fā)制造為一體的取力器研究所，是一條可行之路。也為各底盤(pán)生產(chǎn)廠解決了因取力原因影響底盤(pán)的銷(xiāo)售問(wèn)題。從這方面看取力器是一種高利潤(rùn)產(chǎn)品。另外與取力器相匹配的各類(lèi)泵，國(guó)內(nèi)的品種、質(zhì)量也是制約專(zhuān)業(yè)汽車(chē)發(fā)展的要點(diǎn)，國(guó)內(nèi)的專(zhuān)業(yè)油泵、空泵在品種、規(guī)格、質(zhì)量、服務(wù)上遠(yuǎn)遠(yuǎn)不能滿足專(zhuān)業(yè)汽車(chē)的需求，在泵、缸、閥、儀表等部件方面也有可發(fā)展的空間。取力器的研發(fā)是一個(gè)有前景的產(chǎn)業(yè)，搶占商機(jī)至關(guān)重要。取力器的制造成本，通常單級(jí)取力器在300～400元/臺(tái)，雙級(jí)取力器為400～500元/臺(tái)，銷(xiāo)售價(jià)在800～1000元/臺(tái)，有特殊變化大的、數(shù)量少的銷(xiāo)售價(jià)在千元以上。成立了取力器研究所就可以從全局的高度，收集各種專(zhuān)用汽車(chē)所需取力器的轉(zhuǎn)速、輸出扭距、接口形式和各類(lèi)底盤(pán)的發(fā)動(dòng)機(jī)、變速箱取力窗口的位置、安裝尺寸，以及取力齒輪的參數(shù)、中心距等資料，分類(lèi)設(shè)計(jì)，做好通用化、系列化、標(biāo)準(zhǔn)化工作，把制造成本降下來(lái)，滿足各改裝車(chē)廠的不同需求。專(zhuān)用汽車(chē)的快速發(fā)展，取力器發(fā)展緩慢滯后的矛盾越來(lái)越突出。據(jù)了解，以前有一家取力器研究所，是湖北汽車(chē)齒輪廠下屬的一個(gè)叫“云夢(mèng)取力器研究所”，當(dāng)時(shí)聲譽(yù)很高，全國(guó)僅此一家，在進(jìn)行體制改革后消失了。變速箱廠不予重視，只能在通用性強(qiáng)批量大的自卸車(chē)取力器上做有限的改動(dòng)，或由改裝車(chē)廠自己改，導(dǎo)致降低專(zhuān)用裝置功能。遠(yuǎn)遠(yuǎn)滿足不了專(zhuān)用裝置多樣化的需求。取力器從汽車(chē)的傳動(dòng)系統(tǒng)取力，主要是經(jīng)過(guò)變速箱設(shè)計(jì)時(shí)預(yù)留的取力窗口取力，