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CVT熱潮下：國(guó)產(chǎn)農(nóng)機(jī)無(wú)級(jí)變速升級(jí)“雛形初現(xiàn)”

2021-11-23 14:15:50 來(lái)源：農(nóng)機(jī)網(wǎng)整理發(fā)布 閱讀量：43301 評(píng)論

導(dǎo)讀：在國(guó)外，CVT(中文名全稱“離心齒無(wú)級(jí)變速箱”，英文全稱Centrifugal Gera Continuous Variable Trasmission)早已經(jīng)成為一項(xiàng)成熟的技術(shù)。在2021國(guó)際農(nóng)機(jī)展期間，現(xiàn)場(chǎng)農(nóng)機(jī)網(wǎng)剛好采訪到了凱斯紐荷蘭中國(guó)市場(chǎng)部經(jīng)理。

　　【農(nóng)機(jī)網(wǎng) 編輯視角】在國(guó)外，CVT(中文名全稱“離心齒無(wú)級(jí)變速箱”，英文全稱Centrifugal Gera Continuous Variable Trasmission)早已經(jīng)成為一項(xiàng)成熟的技術(shù)。在2021國(guó)際農(nóng)機(jī)展期間，現(xiàn)場(chǎng)農(nóng)機(jī)網(wǎng)剛好采訪到了凱斯紐荷蘭中國(guó)市場(chǎng)部經(jīng)理。
 
　　據(jù)他介紹，凱斯OPTUM系列拖拉機(jī)的結(jié)構(gòu)尺寸和重量是目前在國(guó)內(nèi)同馬力段功能性很強(qiáng)的拖拉機(jī)。凱斯optum 300CVX drive采用(CVT)無(wú)極變速技術(shù)，應(yīng)用于多種場(chǎng)景。這一系列的拖拉機(jī)專門針對(duì)中大型客戶設(shè)計(jì)，如翻地、深松等。無(wú)極變速變速箱更是可以使燃油經(jīng)濟(jì)性發(fā)揮到極致。
 

 

　　此外，還有愛(ài)科麥賽福格森MF 3404大馬力拖拉機(jī)，是愛(ài)科集團(tuán)在全球市場(chǎng)同步推出的無(wú)級(jí)變速標(biāo)桿產(chǎn)品。業(yè)內(nèi)獨(dú)有的CVT無(wú)級(jí)變速技術(shù)，采用了先進(jìn)的Dyna-VT無(wú)級(jí)變速傳動(dòng)系。
 

 

　　凱斯、愛(ài)科這些美國(guó)大型農(nóng)機(jī)品牌，已經(jīng)成為中國(guó)引進(jìn)高端農(nóng)機(jī)產(chǎn)品的標(biāo)志性設(shè)備。而在我國(guó)，諸多大型農(nóng)機(jī)品牌企業(yè)通過(guò)自主研發(fā)，也相繼推出CVT智能農(nóng)機(jī)，推動(dòng)國(guó)產(chǎn)農(nóng)機(jī)邁入無(wú)級(jí)變速時(shí)代。
 
　　中國(guó)一拖：新一代無(wú)級(jí)變速重型輪式拖拉機(jī)
 
　　2021國(guó)際農(nóng)機(jī)展會(huì)期間首次亮相的東方紅LW2304輪式拖拉機(jī)是中國(guó)一拖為國(guó)內(nèi)大型農(nóng)場(chǎng)及替代進(jìn)口需要而開(kāi)發(fā)的具有完全自主知識(shí)產(chǎn)權(quán)的新一代無(wú)級(jí)變速重型輪式拖拉機(jī)，配備具有滿足非道路國(guó)三標(biāo)準(zhǔn)的全電控增壓中冷柴油機(jī)，通過(guò)電子控制使發(fā)動(dòng)機(jī)始終處于工作狀態(tài)；采用完全自主知識(shí)產(chǎn)權(quán)的新一代拖拉機(jī)無(wú)級(jí)變速傳動(dòng)系，速比連續(xù)，動(dòng)力傳遞平穩(wěn)，操作舒適性好，無(wú)需換檔可實(shí)現(xiàn)連續(xù)變速控制，車速可實(shí)現(xiàn)50km/h；具有手動(dòng)、自動(dòng)以及PTO等三種控制模式，操縱簡(jiǎn)單，有效降低勞動(dòng)強(qiáng)度。
 
　　濰柴雷沃重工：P7000 240馬力CVT智能拖拉機(jī)
 
　　作為中國(guó)首款商業(yè)化CVT智能拖拉機(jī)，采用的濰柴自主研發(fā)的CVT無(wú)級(jí)變速動(dòng)力傳動(dòng)總成，匯集多區(qū)段雙行星匯流高效傳動(dòng)系技術(shù)、一體式泵馬達(dá)液壓變速單元高效傳動(dòng)技術(shù)、CVT動(dòng)力總成控制技術(shù)等多項(xiàng)核心技術(shù)，實(shí)現(xiàn)全作業(yè)區(qū)段的無(wú)級(jí)調(diào)速；針對(duì)特定工況的定制化動(dòng)力傳動(dòng)控制策略，可選田間模式、運(yùn)輸模式，同時(shí)可實(shí)現(xiàn)定速巡航，實(shí)現(xiàn)最佳動(dòng)力性和最佳燃油經(jīng)濟(jì)性的完美結(jié)合，綜合作業(yè)效率提升30%，綜合燃油消耗降低10%；閉芯負(fù)載敏感液壓系統(tǒng)，實(shí)時(shí)反饋，高效響應(yīng)，滿足各種復(fù)合作業(yè)需求；搭載無(wú)人駕駛系統(tǒng)，滿足高精度智能作業(yè)需求。
 
　　玉柴機(jī)器：中國(guó)首款國(guó)產(chǎn)新能源CVT拖拉機(jī)動(dòng)力總成
 
　　IE-POWER電驅(qū)無(wú)級(jí)變速動(dòng)力總成，是由玉柴完全自主研發(fā)的拖拉機(jī)用串聯(lián)式混合動(dòng)力總成技術(shù)解決方案，適配200-260馬力重型拖拉機(jī)。較傳統(tǒng)的拖拉機(jī)傳動(dòng)系，IE-POWER電驅(qū)無(wú)級(jí)變速動(dòng)力總成作業(yè)效率提高10%-30%，節(jié)油率提高10%-30%。采用該系統(tǒng)易實(shí)現(xiàn)拖拉機(jī)輔助駕駛、無(wú)人駕駛，同時(shí)可輕松實(shí)現(xiàn)地頭管理、半坡防溜車、電力輸出等功能。目前，山東五征、廣西柳工均已推出搭載玉柴IE-POWER的大型無(wú)級(jí)變速拖拉機(jī)。
 
　　中聯(lián)農(nóng)機(jī)：無(wú)級(jí)變速CL2404拖拉機(jī)
 
　　該機(jī)智能化程度高，輕松操作；配備六缸高壓共軌柴油發(fā)動(dòng)機(jī)，整機(jī)額定功率可達(dá)176.5kW，動(dòng)力儲(chǔ)備高達(dá)33%；配備CVT無(wú)級(jí)變速變速箱，整機(jī)全電液控制，實(shí)現(xiàn)自動(dòng)換擋及動(dòng)力換向；擁有自主知識(shí)產(chǎn)權(quán)的多功能扶手，可實(shí)現(xiàn)多系統(tǒng)集成控制，操作控制便捷；整車油耗降低，具備公路運(yùn)輸與田間作業(yè)兩種運(yùn)行速度模式；整車配置衛(wèi)星導(dǎo)航及無(wú)人駕駛設(shè)備，具有主動(dòng)避障功能，可實(shí)現(xiàn)故障自診斷。
 
　　在我國(guó)，CVT技術(shù)因受制于技術(shù)研發(fā)跟不上和市場(chǎng)接受度較低等原因，一直難有較明顯的推進(jìn)。待這一技術(shù)在中國(guó)廣闊的土地上推廣應(yīng)用，還有很長(zhǎng)的路要走。
 
　　注：本文由農(nóng)機(jī)網(wǎng)(qktnz.cn)整理發(fā)布，資料來(lái)源：雷沃、玉柴、中國(guó)一拖、中聯(lián)農(nóng)機(jī)

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