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基礎信息Product information

產品名稱：液(ye)壓直動制動器

產(chan)品型號：DADH195-DZ

產品簡介：

液壓直動(dong)(dong)制(zhi)(zhi)動(dong)(dong)器(qi)簡稱(cheng)(cheng)長沖程制(zhi)(zhi)動(dong)(dong)器(qi)（三相(xiang)制(zhi)(zhi)動(dong)(dong)器(qi)）；液壓推桿式(shi)(shi)雙閘瓦制(zhi)(zhi)動(dong)(dong)器(qi)，簡稱(cheng)(cheng)推桿式(shi)(shi)制(zhi)(zhi)動(dong)(dong)器(qi)三種。抱閘是橋式(shi)(shi)起重(zhong)機的制(zhi)(zhi)動(dong)(dong)器(qi)，還有(you)防撞0位器(qi)。安裝操作(zuo)情況不同，制(zhi)(zhi)動(dong)(dong)器(qi)分(fen)為常閉(bi)(bi)式(shi)(shi)、常開式(shi)(shi)、綜合式(shi)(shi)三種類(lei)型(xing)。起重(zhong)機上多數采用常閉(bi)(bi)式(shi)(shi)制(zhi)(zhi)動(dong)(dong)器(qi)，常閉(bi)(bi)式(shi)(shi)制(zhi)(zhi)動(dong)(dong)器(qi)在機構(gou)不工(gong)作(zuo)期間是閉(bi)(bi)合的。如果想要機構(gou)工(gong)作(zuo)，只(zhi)需要焦作(zuo)制(zhi)(zhi)動(dong)(dong)器(qi)松閘將制(zhi)(zhi)動(dong)(dong)器(qi)的摩擦副(fu)分(fen)開。

產品特性Product characteristics

 液壓直動制動器液壓直動制動器

可分為常閉(bi)式(shi)(shi)和常開式(shi)(shi)兩(liang)種。常閉(bi)式(shi)(shi)制動(dong)器經(jing)常處于合閘(zha)(zha)狀(zhuang)態，當機(ji)(ji)構工(gong)作時，可用(yong)電(dian)磁(ci)鐵或(huo)電(dian)力液壓推桿器等外力的作用(yong)使之松閘(zha)(zha)。常開式(shi)(shi)制動(dong)器與之相(xiang)反，它(ta)(ta)經(jing)常處于松閘(zha)(zha)狀(zhuang)態，只有(you)施加外力時，才(cai)能使它(ta)(ta)合閘(zha)(zha)。從(cong)工(gong)作安全出發(fa)，起重機(ji)(ji)的各(ge)工(gong)作機(ji)(ji)構都應(ying)采用(yong)常閉(bi)式(shi)(shi)制動(dong)器。從(cong)工(gong)作狀(zhuang)態來看(kan)，0選常閉(bi)式(shi)，只有通電時才能(neng)松開工作(zuo)，以免突然斷電重物自由(you)下(xia)滑傷人(ren)。

制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)的(de)類型與結(jie)構橋(qiao)式(shi)(shi)(shi)起(qi)重機的(de)常用的(de)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)有(you)：短行程(cheng)(cheng)電子塊式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)、長行程(cheng)(cheng)瓦式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)、液(ye)壓推(tui)桿瓦式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)、液(ye)壓電磁瓦塊式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)等。塊式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)①短行程(cheng)(cheng)電子塊式(shi)(shi)(shi)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)：短行程(cheng)(cheng)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)器(qi)結(jie)構簡單(dan)、質量輕、制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)快。缺點是沖擊(ji)和噪(zao)聲壽命短，制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)力矩小，有(you)時有(you)剩磁現象，只適用于起(qi)升機構，無防爆型要用直流電源時需要更(geng)換電磁鐵。

長行(xing)(xing)程塊(kuai)式(shi)制(zhi)動器(qi)：這種制(zhi)動器(qi)的優(you)點是行(xing)(xing)程可以獲得較0的制(zhi)(zhi)動(dong)力(li)矩，制(zhi)(zhi)動(dong)快，很少有剩磁(ci)現(xian)象，比較安(an)全。缺點是(shi)沖擊和(he)噪聲較壽命不(bu)夠長(chang)，構件多且復雜，體積和(he)質(zhi)量效率低，只(zhi)適用于起升機構。電(dian)力(li)液壓塊式(shi)制(zhi)(zhi)動(dong)器(qi)：用液壓電(dian)磁(ci)塊替(ti)代長(chang)行程塊式(shi)制(zhi)(zhi)動(dong)器(qi)電(dian)磁(ci)鐵，有YWZ（液(ye)壓推桿）和YDWZ（液(ye)壓電磁鐵）兩種。YWZ型(xing)制(zhi)動平穩。

無噪聲(sheng)、體(ti)積小，用(yong)于運行機(ji)(ji)構和回(hui)轉機(ji)(ji)構較好(hao)。因其制停動作(zuo)較慢，不適宜(yi)起升(sheng)機(ji)(ji)構使用(yong)，以(yi)防溜(liu)鉤。YDWZ型各(ge)種性能都較(jiao)好(hao)，而且(qie)不需經(jing)常(chang)調整，只需直流(liu)電源即可。帶式(shi)制動器：在外(wai)形尺(chi)寸(cun)受0制，制動轉矩(ju)要求很0的(de)場合，可考(kao)慮(lv)選(xuan)用帶式(shi)(shi)制(zhi)動器，流動式(shi)(shi)起重機上多(duo)采(cai)用這種制(zhi)動裝(zhuang)置。帶式(shi)(shi)制(zhi)動器的(de)缺(que)點是(shi)安(an)全性較低，制(zhi)動帶斷裂將造成嚴重后果。