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CVT熱潮下：國產(chǎn)農(nóng)機無級變速升級“雛形初現(xiàn)”

2021-11-23 14:15:50 來源：農(nóng)機網(wǎng)整理發(fā)布 閱讀量：43303 評論

導(dǎo)讀：在國外，CVT(中文名全稱“離心齒無級變速箱”，英文全稱Centrifugal Gera Continuous Variable Trasmission)早已經(jīng)成為一項成熟的技術(shù)。在2021國際農(nóng)機展期間，現(xiàn)場農(nóng)機網(wǎng)剛好采訪到了凱斯紐荷蘭中國市場部經(jīng)理。

　　【農(nóng)機網(wǎng) 編輯視角】在國外，CVT(中文名全稱“離心齒無級變速箱”，英文全稱Centrifugal Gera Continuous Variable Trasmission)早已經(jīng)成為一項成熟的技術(shù)。在2021國際農(nóng)機展期間，現(xiàn)場農(nóng)機網(wǎng)剛好采訪到了凱斯紐荷蘭中國市場部經(jīng)理。
 
　　據(jù)他介紹，凱斯OPTUM系列拖拉機的結(jié)構(gòu)尺寸和重量是目前在國內(nèi)同馬力段功能性很強的拖拉機。凱斯optum 300CVX drive采用(CVT)無極變速技術(shù)，應(yīng)用于多種場景。這一系列的拖拉機專門針對中大型客戶設(shè)計，如翻地、深松等。無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，還有愛科麥賽福格森MF 3404大馬力拖拉機，是愛科集團(tuán)在全球市場同步推出的無級變速標(biāo)桿產(chǎn)品。業(yè)內(nèi)獨有的CVT無級變速技術(shù)，采用了先進(jìn)的Dyna-VT無級變速傳動系。
 

 

　　凱斯、愛科這些美國大型農(nóng)機品牌，已經(jīng)成為中國引進(jìn)高端農(nóng)機產(chǎn)品的標(biāo)志性設(shè)備。而在我國，諸多大型農(nóng)機品牌企業(yè)通過自主研發(fā)，也相繼推出CVT智能農(nóng)機，推動國產(chǎn)農(nóng)機邁入無級變速時代。
 
　　中國一拖：新一代無級變速重型輪式拖拉機
 
　　2021國際農(nóng)機展會期間首次亮相的東方紅LW2304輪式拖拉機是中國一拖為國內(nèi)大型農(nóng)場及替代進(jìn)口需要而開發(fā)的具有完全自主知識產(chǎn)權(quán)的新一代無級變速重型輪式拖拉機，配備具有滿足非道路國三標(biāo)準(zhǔn)的全電控增壓中冷柴油機，通過電子控制使發(fā)動機始終處于工作狀態(tài)；采用完全自主知識產(chǎn)權(quán)的新一代拖拉機無級變速傳動系，速比連續(xù)，動力傳遞平穩(wěn)，操作舒適性好，無需換檔可實現(xiàn)連續(xù)變速控制，車速可實現(xiàn)50km/h；具有手動、自動以及PTO等三種控制模式，操縱簡單，有效降低勞動強度。
 
　　濰柴雷沃重工：P7000 240馬力CVT智能拖拉機
 
　　作為中國首款商業(yè)化CVT智能拖拉機，采用的濰柴自主研發(fā)的CVT無級變速動力傳動總成，匯集多區(qū)段雙行星匯流高效傳動系技術(shù)、一體式泵馬達(dá)液壓變速單元高效傳動技術(shù)、CVT動力總成控制技術(shù)等多項核心技術(shù)，實現(xiàn)全作業(yè)區(qū)段的無級調(diào)速；針對特定工況的定制化動力傳動控制策略，可選田間模式、運輸模式，同時可實現(xiàn)定速巡航，實現(xiàn)最佳動力性和最佳燃油經(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)，實時反饋，高效響應(yīng)，滿足各種復(fù)合作業(yè)需求；搭載無人駕駛系統(tǒng)，滿足高精度智能作業(yè)需求。
 
　　玉柴機器：中國首款國產(chǎn)新能源CVT拖拉機動力總成
 
　　IE-POWER電驅(qū)無級變速動力總成，是由玉柴完全自主研發(fā)的拖拉機用串聯(lián)式混合動力總成技術(shù)解決方案，適配200-260馬力重型拖拉機。較傳統(tǒng)的拖拉機傳動系，IE-POWER電驅(qū)無級變速動力總成作業(yè)效率提高10%-30%，節(jié)油率提高10%-30%。采用該系統(tǒng)易實現(xiàn)拖拉機輔助駕駛、無人駕駛，同時可輕松實現(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的大型無級變速拖拉機。
 
　　中聯(lián)農(nóng)機：無級變速CL2404拖拉機
 
　　該機智能化程度高，輕松操作；配備六缸高壓共軌柴油發(fā)動機，整機額定功率可達(dá)176.5kW，動力儲備高達(dá)33%；配備CVT無級變速變速箱，整機全電液控制，實現(xiàn)自動換擋及動力換向；擁有自主知識產(chǎn)權(quán)的多功能扶手，可實現(xiàn)多系統(tǒng)集成控制，操作控制便捷；整車油耗降低，具備公路運輸與田間作業(yè)兩種運行速度模式；整車配置衛(wèi)星導(dǎo)航及無人駕駛設(shè)備，具有主動避障功能，可實現(xiàn)故障自診斷。
 
　　在我國，CVT技術(shù)因受制于技術(shù)研發(fā)跟不上和市場接受度較低等原因，一直難有較明顯的推進(jìn)。待這一技術(shù)在中國廣闊的土地上推廣應(yīng)用，還有很長的路要走。
 
　　注：本文由農(nóng)機網(wǎng)(balpclean.com)整理發(fā)布，資料來源：雷沃、玉柴、中國一拖、中聯(lián)農(nóng)機

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