1、保證汽(qi)車(che)(che)平穩起(qi)(qi)步(bu)(bu) 這(zhe)是(shi)離(li)(li)合(he)(he)(he)(he)器(qi)(qi)的(de)(de)(de)首要(yao)功能(neng)。在(zai)(zai)汽(qi)車(che)(che)起(qi)(qi)步(bu)(bu)前(qian),自然要(yao)先起(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)。而(er)(er)(er)汽(qi)車(che)(che)起(qi)(qi)步(bu)(bu)時,汽(qi)車(che)(che)是(shi)從完(wan)全靜止(zhi)(zhi)的(de)(de)(de)狀態逐步(bu)(bu)加速(su)(su)的(de)(de)(de)。如果傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)(它(ta)聯系(xi)著整(zheng)個(ge)汽(qi)車(che)(che))與發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)剛(gang)性地聯系(xi),則(ze)變(bian)速(su)(su)器(qi)(qi)一(yi)掛上檔,汽(qi)車(che)(che)將(jiang)(jiang)突然向前(qian)沖(chong)一(yi)下(xia)(xia),但(dan)并(bing)不(bu)能(neng)起(qi)(qi)步(bu)(bu)。這(zhe)是(shi)因(yin)為汽(qi)車(che)(che)從靜止(zhi)(zhi)到前(qian)沖(chong)時,產生很(hen)大慣(guan)性力(li)(li),對發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)造(zao)成很(hen)大地阻力(li)(li)矩(ju)。在(zai)(zai)這(zhe)慣(guan)性阻力(li)(li)矩(ju)作(zuo)用下(xia)(xia),發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)在(zai)(zai)瞬(shun)時間轉(zhuan)速(su)(su)急劇下(xia)(xia)降到最低(di)(di)穩定轉(zhuan)速(su)(su)(一(yi)般(ban)300-500RPM)以下(xia)(xia),發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)即(ji)(ji)熄火(huo)而(er)(er)(er)不(bu)能(neng)工(gong)作(zuo),當然汽(qi)車(che)(che)也不(bu)能(neng)起(qi)(qi)步(bu)(bu)。 因(yin)此,我們就(jiu)需要(yao)離(li)(li)合(he)(he)(he)(he)器(qi)(qi)的(de)(de)(de)幫助了。在(zai)(zai)發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)起(qi)(qi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)后(hou),汽(qi)車(che)(che)起(qi)(qi)步(bu)(bu)之(zhi)前(qian),駕駛員(yuan)先踩下(xia)(xia)離(li)(li)合(he)(he)(he)(he)器(qi)(qi)踏板,將(jiang)(jiang)離(li)(li)合(he)(he)(he)(he)器(qi)(qi)分離(li)(li),使(shi)發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)和傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)脫開,再將(jiang)(jiang)變(bian)速(su)(su)器(qi)(qi)掛上檔,然后(hou)逐漸松開離(li)(li)合(he)(he)(he)(he)器(qi)(qi)踏板,使(shi)離(li)(li)合(he)(he)(he)(he)器(qi)(qi)逐漸接合(he)(he)(he)(he)。在(zai)(zai)接合(he)(he)(he)(he)過(guo)程中,發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)所(suo)受阻力(li)(li)矩(ju)逐漸增大,故應同時逐漸踩下(xia)(xia)加速(su)(su)踏板,即(ji)(ji)逐步(bu)(bu)增加對發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)燃料供(gong)給(gei)量,使(shi)發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)(de)轉(zhuan)速(su)(su)始終保持在(zai)(zai)最低(di)(di)穩定轉(zhuan)速(su)(su)上,而(er)(er)(er)不(bu)致(zhi)熄火(huo)。同時,由(you)于離(li)(li)合(he)(he)(he)(he)器(qi)(qi)的(de)(de)(de)接合(he)(he)(he)(he)緊密程度逐漸增大,發(fa)(fa)(fa)(fa)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)經傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)系(xi)傳(chuan)給(gei)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)車(che)(che)輪的(de)(de)(de)轉(zhuan)矩(ju)便逐漸增加,到牽(qian)引力(li)(li)足以克服起(qi)(qi)步(bu)(bu)阻力(li)(li)時,汽(qi)車(che)(che)即(ji)(ji)從靜止(zhi)(zhi)開始運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)并(bing)逐步(bu)(bu)加速(su)(su)
2、保證傳(chuan)(chuan)(chuan)動(dong)系換(huan)檔(dang)時工(gong)(gong)作平(ping)順 2:實(shi)(shi)現平(ping)順的(de)(de)換(huan)檔(dang) 在汽車行(xing)駛過程中,為適應不(bu)斷變(bian)化的(de)(de)行(xing)駛條(tiao)件,傳(chuan)(chuan)(chuan)動(dong)系經常要更(geng)換(huan)不(bu)同檔(dang)位(wei)(wei)工(gong)(gong)作。實(shi)(shi)現齒輪(lun)式變(bian)速器的(de)(de)換(huan)檔(dang),一(yi)般是撥(bo)動(dong)齒輪(lun)或其(qi)他掛檔(dang)機構,使(shi)原用(yong)檔(dang)位(wei)(wei)的(de)(de)某(mou)一(yi)齒輪(lun)副推出傳(chuan)(chuan)(chuan)動(dong),再(zai)使(shi)另一(yi)檔(dang)位(wei)(wei)的(de)(de)齒輪(lun)副進(jin)入工(gong)(gong)作。在換(huan)檔(dang)前必(bi)須踩下離合(he)(he)(he)器踏板(ban),中斷動(dong)力(li)傳(chuan)(chuan)(chuan)動(dong),便于(yu)使(shi)原檔(dang)位(wei)(wei)的(de)(de)嚙(nie)合(he)(he)(he)副脫開,同時使(shi)新檔(dang)位(wei)(wei)嚙(nie)合(he)(he)(he)副的(de)(de)嚙(nie)合(he)(he)(he)部位(wei)(wei)的(de)(de)速度逐步(bu)趨向同步(bu),這樣(yang)進(jin)入嚙(nie)合(he)(he)(he)時的(de)(de)沖擊可(ke)以大(da)大(da)的(de)(de)減小,實(shi)(shi)現平(ping)順的(de)(de)換(huan)檔(dang)。
3、防止傳(chuan)動(dong)(dong)系(xi)(xi)過(guo)載 當汽車進行緊急制動(dong)(dong)時,若(ruo)沒有離(li)(li)合(he)器(qi),則發動(dong)(dong)機將因和傳(chuan)動(dong)(dong)系(xi)(xi)剛性連接而(er)急劇降低轉速(su),因而(er)其(qi)(qi)中所有運動(dong)(dong)件將產生很大的(de)慣性力矩(其(qi)(qi)數值可能(neng)大大超過(guo)發動(dong)(dong)機正(zheng)常工(gong)作時所發出的(de)最大扭(niu)距),對傳(chuan)動(dong)(dong)系(xi)(xi)造成超過(guo)其(qi)(qi)承載能(neng)力的(de)載荷,而(er)使(shi)機件損壞。有了離(li)(li)合(he)器(qi),便可以依靠離(li)(li)合(he)器(qi)主(zhu)動(dong)(dong)部分(fen)和從動(dong)(dong)部分(fen)之間可能(neng)產生的(de)相對運動(dong)(dong)以消除這一危險。因此,我們(men)需要離(li)(li)合(he)器(qi)來限(xian)制傳(chuan)動(dong)(dong)系(xi)(xi)所承受的(de)最大扭(niu)距,保(bao)證安(an)全。 離(li)(li)合(he)器(qi)可分(fen)為:摩擦(ca)離(li)(li)合(he)器(qi),或(huo)是利用液(ye)體(ti)作為傳(chuan)動(dong)(dong)的(de)介質(即液(ye)力偶合(he)器(qi)),或(huo)是利用磁力傳(chuan)動(dong)(dong)(即電(dian)磁離(li)(li)合(he)器(qi)}
離合器撥叉是汽車變速箱的一部分,屬于變速箱附件,主要用于離合器換擋。與變速手柄連接,位于手柄下端,撥動中間變速輪改變輸入輸出速比。撥叉一般是指手動變速箱的汽車,位于變速箱和發動機之間的離合器系統中。
踏板通過傳動系統將力傳遞給撥叉,撥叉推動分離軸承壓下離合器壓盤,將發動機和變速箱之間的動力傳遞分離。離合器接合時,踏板處于最高位置,分離桿和分離軸承之間有間隙δ。壓盤在壓緊彈簧的作用下壓緊從動盤,發動機的扭矩通過飛輪和壓盤傳遞到從動盤,再傳遞到變速器的第一軸。
離合器傳遞的最大扭矩取決于從動盤摩擦面的最大靜摩擦力。它與摩擦表面之間的壓力、摩擦面積和摩擦材料的性能有關。對于具有一定結構的離合器,其最大靜摩擦力是一個固定值。如果傳動系統傳遞的扭矩超過這個固定值,離合器就會打滑,從而起到過載保護的作用。
內飾個人感覺蠻好!沒開過別的什么高檔車!!對于這個級別來說,感覺比豪華車還好,側身的線條優雅流(liu)暢,車輪的造型也很有動感,比(bi)較受年輕人群的喜歡。外觀硬朗,前(qian)臉賊帥,一(yi)般(ban)男人看到一(yi)般(ban)都會心動。
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