538 中央傳動(dòng)及轉(zhuǎn)向離合器設(shè)計(jì)（有cad圖+中英文翻譯）
538 中央傳動(dòng)及轉(zhuǎn)向離合器設(shè)計(jì)（有cad圖+中英文翻譯）,538,中央傳動(dòng)及轉(zhuǎn)向離合器設(shè)計(jì)（有cad圖+中英文翻譯）,中央,傳動(dòng),轉(zhuǎn)向離合器,設(shè)計(jì),cad,中英文,翻譯
中央傳動(dòng)及轉(zhuǎn)向離合器設(shè)計(jì)
摘要
中央傳動(dòng)用來(lái)增加傳動(dòng)系的傳動(dòng)比,以達(dá)到減速增扭的目的,通常還用來(lái)改變轉(zhuǎn)矩的傳遞方向,使轉(zhuǎn)矩從縱置的變速箱輸出軸傳遞給橫置的中央傳動(dòng)兩側(cè)輸出軸。
中央傳動(dòng)應(yīng)有適當(dāng)?shù)膫鲃?dòng)比,以保證拖拉機(jī)具有良好的牽引性與經(jīng)濟(jì)性;結(jié)構(gòu)應(yīng)緊湊,以減小后橋尺寸和和質(zhì)量,保證后橋有足夠的離地間隙；齒輪裝置應(yīng)有足夠的承載能力和支承剛度,如系錐齒輪副,則還應(yīng)便于調(diào)整。
中央傳動(dòng)的齒輪形式目前主要有圓柱齒輪和圓錐齒輪。圓柱齒輪結(jié)構(gòu)簡(jiǎn)單,加工較容易,在傳動(dòng)時(shí)不致產(chǎn)生軸向力。但僅適用于采用橫置變速箱的拖拉機(jī)。而圓錐齒輪應(yīng)用則較為廣泛。
履帶拖拉機(jī)在行使過(guò)程中，需要經(jīng)常改變行駛方向，這就需要有一套能夠按照司機(jī)意志來(lái)改變或恢復(fù)拖拉機(jī)行駛方向的專設(shè)機(jī)構(gòu)，它將司機(jī)踩下轉(zhuǎn)向離合器踏板的動(dòng)作轉(zhuǎn)變?yōu)檐囕喌钠D(zhuǎn)動(dòng)作，這就是所謂的轉(zhuǎn)向系統(tǒng)。轉(zhuǎn)向性能是保證車輛安全，減輕駕駛員勞動(dòng)強(qiáng)度和提高作業(yè)效率的重要因素。
轉(zhuǎn)向離合器轉(zhuǎn)向系統(tǒng)由于構(gòu)造簡(jiǎn)單，制造方便，維修容易，在拖拉機(jī)上廣泛采用。它具有轉(zhuǎn)向半徑小，直線行駛性好等優(yōu)點(diǎn)。但由于傳遞的轉(zhuǎn)矩較大，只得采用多片式離合器，而多片式離合器分離徹底性比較差。這對(duì)轉(zhuǎn)向離合器來(lái)說(shuō)，除了使摩擦面的磨損略微增大外，對(duì)整機(jī)性能沒有太大影響，不像主離合器分離不徹底會(huì)造成換檔困難。
關(guān)鍵詞：中央傳動(dòng)，轉(zhuǎn)向離合器，錐齒輪，轉(zhuǎn)向系統(tǒng)
CENTRAL SPREAD TO MOVE AND ATEERING MECHANISM DESIGN
ABSTRACT
Central spread to use to increase to spread to move to fasten of spread and move ratio, the purpose that to attain to decelerate to increase to twist, usually return to use to change the torque to deliver the direction, make torque place become soon the box outputs the stalk to deliver to horizontal place central to spread to move the two sides exportation stalk.
Central spread to move and should have appropriate of spread and move ratio, with the assurance that the tractor has to lead the sex and economy goodly; structure should tightly packed, after to let up the bridge size and and quantity, the assurance is behind the bridge has to leave a ground of cleft enough;The wheel gear device should have the enough loading ability and pay to accept just degree, return if department the bevel gears is vice, should easy to adjustment.
Central spread the dynamic wheel gear form to mainly have the cylinder wheel gear and the bevel gearses currently.The cylinder wheel gear structure is simple, processing to compare easily, produce the stalk toward dint unlikely while spread move.But be applicable to the adoption only horizontal place to become soon the tractor of the box.But the cone wheel gear the application then compare extensively.
The track tractor professional makes in the process, needing to usually change to drive the direction, this need to be have a set of can change or recover the tractor to drive the particularly establish of the direction organization according to the driver will, it deflect the action change that the driver tramples bottom to change direction the clutch pedal for the felloe action, this is to change direction the system so calledly.Change direction the function is to guarantee the vehicle safety, easing the pilot the labor strength and raise important factor of the homework efficiency.
steering mechanism changes direction the system because of structure in brief, make convenience, maintain easily, in the dalliance on board extensive doption.It has the radius of change direction small, drive sex good etc. advantage straightly.But because the torque that deliver compare greatly, have to several type clutches of adoption, but several types clutch separate thoroughly sex is worse.This says towards steering mechanismcome, in addition to making rub to face of wearing away the inching aggrandizement, having no to the whole machine function to affect too greatly, be unlike the main clutch separation ill success and will result in shift gear the difficulty.
KEY WORDS: Central spread to move , steering mechanism ,bevel gears,
the steering system
III
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