門式起重機的制動(dong)(dong)(dong)器在使用過程中，由于沖突和磨(mo)損(sun)，會使制動(dong)(dong)(dong)沖突片磨(mo)損(sun)變薄，鉸鏈(lian)副會因(yin)磨(mo)損(sun)形成(cheng)空隙(xi)增(zeng)大，這樣會使制動(dong)(dong)(dong)力矩減小，制動(dong)(dong)(dong)空隙(xi)增(zeng)大，致使制動(dong)(dong)(dong)失效。為了使機構的作業準確、安(an)全(quan)和牢靠，應按作業需要的制動(dong)(dong)(dong)力矩和安(an)全(quan)要求進行調(diao)整。制動(dong)(dong)(dong)器的調(diao)整通常包(bao)含以下三個(ge)方面:調(diao)整作業行程、調(diao)整制動(dong)(dong)(dong)力矩、調(diao)整制動(dong)(dong)(dong)空隙(xi)。

　　制(zhi)動(dong)(dong)(dong)器牢靠的(de)制(zhi)動(dong)(dong)(dong)力矩是經過(guo)調(diao)整主(zhu)繃簧的(de)長(chang)度，即經過(guo)調(diao)整主(zhu)繃簧的(de)張力來(lai)完成(cheng)的(de)。為了使(shi)兩個(ge)制(zhi)動(dong)(dong)(dong)瓦塊(kuai)(kuai)對(dui)制(zhi)動(dong)(dong)(dong)輪的(de)作(zuo)用力均勻、持平(ping)(ping)，兩個(ge)制(zhi)動(dong)(dong)(dong)瓦塊(kuai)(kuai)在張開時與制(zhi)動(dong)(dong)(dong)輪間的(de)空(kong)隙(xi)應均勻持平(ping)(ping)。制(zhi)動(dong)(dong)(dong)空(kong)隙(xi)通常用調(diao)整作(zuo)業行程(cheng)的(de)巨(ju)細來(lai)調(diao)整。

　　當一(yi)套機構有兩套制動(dong)器(qi)時(shi)，應(ying)逐一(yi)調整(zheng)(zheng)各(ge)(ge)制動(dong)器(qi)，確保(bao)各(ge)(ge)制動(dong)器(qi)都能單獨在額定負荷下正常作業。為確保(bao)設備安全，制動(dong)器(qi)調整(zheng)(zheng)時(shi)應(ying)確保(bao)有必要的安全制動(dong)行程。