一、什么是機油泵
機油(you)(you)(you)(you)泵是發(fa)動(dong)機內的(de)油(you)(you)(you)(you)泵,它(ta)的(de)作用(yong)是將機油(you)(you)(you)(you)提高到一定壓(ya)力后(hou)(hou),強制(zhi)地壓(ya)送到發(fa)動(dong)機各(ge)零件的(de)運動(dong)表(biao)面上,保證一定的(de)油(you)(you)(you)(you)量。機油(you)(you)(you)(you)泵是發(fa)動(dong)機潤(run)滑系統中機油(you)(you)(you)(you)循環的(de)動(dong)力源,機油(you)(you)(you)(you)泵安裝在發(fa)動(dong)機缸(gang)體下部,旋轉時將油(you)(you)(you)(you)底殼(ke)的(de)機油(you)(you)(you)(you)加壓(ya)排向潤(run)滑油(you)(you)(you)(you)路,經過(guo)機油(you)(you)(you)(you)濾清(qing)器過(guo)濾后(hou)(hou)進(jin)入所需(xu)潤(run)滑部件的(de)表(biao)面。
二、機油泵由哪些零件組成
機(ji)(ji)油(you)(you)泵按照結構(gou)形(xing)式不(bu)同,分為齒輪式機(ji)(ji)油(you)(you)泵和轉子式機(ji)(ji)油(you)(you)泵兩種:
1、齒(chi)輪式(shi)機油泵(beng)由兩個(ge)相同的齒(chi)輪及泵(beng)殼組成,具體零部件包括(kuo)端蓋、油泵(beng)驅(qu)動(dong)(dong)軸、外殼、從動(dong)(dong)齒(chi)輪、從動(dong)(dong)齒(chi)輪軸、主動(dong)(dong)齒(chi)輪、限壓(ya)閥以及驅(qu)動(dong)(dong)齒(chi)輪等。
2、轉(zhuan)(zhuan)(zhuan)子(zi)式(shi)機油泵由殼體、內轉(zhuan)(zhuan)(zhuan)子(zi)、外轉(zhuan)(zhuan)(zhuan)子(zi)和泵蓋等組成(cheng),內轉(zhuan)(zhuan)(zhuan)子(zi)用(yong)鍵(jian)或銷子(zi)固定在轉(zhuan)(zhuan)(zhuan)子(zi)軸上,由曲軸齒(chi)輪(lun)直接(jie)(jie)或間接(jie)(jie)驅(qu)動。
三、汽車機油泵工作原理是什么
汽(qi)車機油泵的結構(gou)不同(tong),原理也(ye)有(you)所不同(tong):
1、齒輪式機油泵原理
當發動(dong)(dong)機工(gong)作時(shi),凸(tu)輪(lun)軸上的(de)(de)(de)驅動(dong)(dong)齒(chi)(chi)輪(lun)帶(dai)動(dong)(dong)機油(you)泵的(de)(de)(de)傳動(dong)(dong)齒(chi)(chi)輪(lun),使固(gu)定在(zai)主(zhu)(zhu)動(dong)(dong)齒(chi)(chi)輪(lun)軸上的(de)(de)(de)主(zhu)(zhu)動(dong)(dong)齒(chi)(chi)輪(lun)旋轉,帶(dai)動(dong)(dong)從動(dong)(dong)齒(chi)(chi)輪(lun)作反(fan)方向的(de)(de)(de)旋轉,將機油(you)從進(jin)油(you)腔沿齒(chi)(chi)隙(xi)與泵壁送至(zhi)出油(you)腔。進(jin)油(you)腔處便形成低壓產生吸(xi)力,把(ba)油(you)底(di)殼(ke)內(nei)的(de)(de)(de)機油(you)吸(xi)進(jin)油(you)腔,由于主(zhu)(zhu)、從動(dong)(dong)齒(chi)(chi)輪(lun)不(bu)斷地旋轉,機油(you)便不(bu)斷地被壓送到需要的(de)(de)(de)部位(wei)。
2、轉子式機油泵原理
轉(zhuan)(zhuan)(zhuan)子(zi)(zi)式機油泵的(de)(de)內、外轉(zhuan)(zhuan)(zhuan)子(zi)(zi)是(shi)(shi)同(tong)向(xiang)不同(tong)步的(de)(de)旋轉(zhuan)(zhuan)(zhuan),轉(zhuan)(zhuan)(zhuan)子(zi)(zi)齒(chi)(chi)形(xing)齒(chi)(chi)廓設計得(de)使轉(zhuan)(zhuan)(zhuan)子(zi)(zi)轉(zhuan)(zhuan)(zhuan)到(dao)(dao)任何角(jiao)度(du)時(shi),內、外轉(zhuan)(zhuan)(zhuan)子(zi)(zi)每(mei)個齒(chi)(chi)的(de)(de)齒(chi)(chi)形(xing)廓線上總能互相(xiang)成點接觸(chu)。這樣內、外轉(zhuan)(zhuan)(zhuan)子(zi)(zi)間(jian)(jian)形(xing)成4個工作(zuo)腔,隨著轉(zhuan)(zhuan)(zhuan)子(zi)(zi)的(de)(de)轉(zhuan)(zhuan)(zhuan)動,這4個工作(zuo)腔的(de)(de)容(rong)積(ji)是(shi)(shi)不斷(duan)(duan)變化的(de)(de)。在進油道(dao)(dao)的(de)(de)一側(ce)空腔,由于轉(zhuan)(zhuan)(zhuan)子(zi)(zi)脫(tuo)開(kai)嚙合,容(rong)積(ji)逐漸增(zeng)大,產(chan)生真(zhen)空,機油被吸(xi)入,轉(zhuan)(zhuan)(zhuan)子(zi)(zi)繼續(xu)旋轉(zhuan)(zhuan)(zhuan),機油被帶到(dao)(dao)出(chu)油道(dao)(dao)的(de)(de)一側(ce),這時(shi),轉(zhuan)(zhuan)(zhuan)子(zi)(zi)正好進入嚙合,使這一空腔容(rong)積(ji)減小(xiao),油壓(ya)升高,機油從齒(chi)(chi)間(jian)(jian)擠出(chu)并經出(chu)油道(dao)(dao)壓(ya)送出(chu)去。這樣,隨著轉(zhuan)(zhuan)(zhuan)子(zi)(zi)的(de)(de)不斷(duan)(duan)旋轉(zhuan)(zhuan)(zhuan),機油就不斷(duan)(duan)地被吸(xi)入和(he)壓(ya)出(chu)。