製動器是具有使運動部件減速

、停止或保持停止狀態等功能的裝置。它是使機械中的運動件停止或減速的機械零件。俗稱刹車
、閘。製動器主要由製架
、zhidongjianhecaozongzhuangzhidengzucheng。zhidongqifenweigongyezhidongqiheqichezhidongqilianglei。youxiezhidongqihaizhuangyouzhidongjianjianxidezidongtiaozhengzhuangzhi，taduizhongzaiqichedejiashiyuanyouzhehenhaodebaojiahuhangdezuoyong。

      製(zhi)動(dong)係(xi)統(tong)的(de)一(yi)般(ban)工(gong)作(zuo)原(yuan)理(li)是(shi)，利(li)用(yong)與(yu)車(che)身(shen)相(xiang)連(lian)的(de)非(fei)旋(xuan)轉(zhuan)元(yuan)件(jian)和(he)與(yu)車(che)輪(lun)相(xiang)連(lian)的(de)旋(xuan)轉(zhuan)元(yuan)件(jian)之(zhi)間(jian)的(de)相(xiang)互(hu)摩(mo)擦(ca)來(lai)阻(zu)止(zhi)車(che)輪(lun)的(de)轉(zhuan)動(dong)或(huo)轉(zhuan)動(dong)的(de)趨(qu)勢(shi)。可(ke)用(yong)一(yi)種(zhong)簡(jian)單(dan)的(de)液(ye)壓(ya)製(zhi)動(dong)係(xi)統(tong)來(lai)說(shuo)明(ming)製(zhi)動(dong)係(xi)統(tong)的(de)工(gong)作(zuo)原(yuan)理(li)。一(yi)個(ge)以(yi)內(nei)圓(yuan)麵(mian)為(wei)工(gong)作(zuo)表(biao)麵(mian)的(de)金(jin)屬(shu)製(zhi)動(dong)鼓(gu)固(gu)定(ding)在(zai)車(che)輪(lun)輪(lun)轂(gu)上(shang)
，隨(sui)車(che)輪(lun)一(yi)同(tong)旋(xuan)轉(zhuan)。在(zai)固(gu)定(ding)不(bu)動(dong)的(de)製(zhi)動(dong)底(di)板(ban)上(shang)，有(you)兩(liang)個(ge)支(zhi)承(cheng)銷(xiao)
，支(zhi)承(cheng)著(zhe)兩(liang)個(ge)弧(hu)形(xing)製(zhi)動(dong)蹄(ti)的(de)下(xia)端(duan)。製(zhi)動(dong)蹄(ti)的(de)外(wai)圓(yuan)麵(mian)上(shang)裝(zhuang)有(you)摩(mo)擦(ca)片(pian)。製(zhi)動(dong)底(di)板(ban)上(shang)還(hai)裝(zhuang)有(you)液(ye)壓(ya)製(zhi)動(dong)輪(lun)缸(gang)，用(yong)油(you)管(guan)5與裝在車架上的液壓製動主缸相連通。主缸中的活塞3可由駕駛員通過製動踏板機構來操縱。