曲軸和凸輪軸的關系
下面凸輪軸批發,凸輪軸廠家以及凸輪軸品牌公司就來介紹一下曲軸和凸輪軸的關系。
(1)上置凸輪軸安置在氣缸蓋(gai)上,轎車(che)發動(dong)(dong)(dong)機常用(yong)。主要(yao)(yao)優點(dian):運動(dong)(dong)(dong)件少(shao),凸輪軸至氣門的傳(chuan)(chuan)動(dong)(dong)(dong)鏈短,整個機構的剛度大,適合(he)于高速發動(dong)(dong)(dong)機。主要(yao)(yao)缺點(dian):凸輪軸與曲軸傳(chuan)(chuan)動(dong)(dong)(dong)距(ju)離較遠(yuan),一般用(yong)齒形帶傳(chuan)(chuan)動(dong)(dong)(dong)或鏈傳(chuan)(chuan)動(dong)(dong)(dong)。
(2)中置凸(tu)輪軸位于氣(qi)(qi)缸體上部。與(yu)凸(tu)輪軸下(xia)置式相比:減少了推桿(gan)(或推桿(gan)較短(duan)),從(cong)而減輕(qing)了配氣(qi)(qi)機構的往復運動質量,增大了機構的剛度,更(geng)適用于較高轉速發動機。
(3)下置凸(tu)輪軸(zhou)位(wei)于曲軸(zhou)箱內。主要優(you)點(dian):凸(tu)輪軸(zhou)離(li)曲軸(zhou)較(jiao)近(jin),一般(ban)用一對(dui)齒輪驅動(dong)(dong)。主要缺點(dian):運動(dong)(dong)件多(duo),凸(tu)輪軸(zhou)至氣門的(de)傳動(dong)(dong)鏈長,整個機構的(de)剛(gang)度(du)差,多(duo)用于較(jiao)低轉速發動(dong)(dong)機。