特黄 做受又硬又粗又大视频_一本一本久久a久久精品综合麻豆_少妇粉嫩小泬喷水视频www_国产精品久久午夜夜伦鲁鲁

基礎信息Product information

產品名(ming)稱：液壓直(zhi)動制動器

產品型號：DADH195-DZ

產品簡介：

液壓直動(dong)(dong)(dong)制(zhi)動(dong)(dong)(dong)器(qi)(qi)簡(jian)稱(cheng)長沖程制(zhi)動(dong)(dong)(dong)器(qi)(qi)（三相制(zhi)動(dong)(dong)(dong)器(qi)(qi)）；液壓推桿(gan)式雙閘瓦制(zhi)動(dong)(dong)(dong)器(qi)(qi)，簡(jian)稱(cheng)推桿(gan)式制(zhi)動(dong)(dong)(dong)器(qi)(qi)三種(zhong)。抱閘是橋式起重機(ji)的制(zhi)動(dong)(dong)(dong)器(qi)(qi)，還有防撞(zhuang)0位器(qi)(qi)。安(an)裝操作(zuo)情況不同，制(zhi)動(dong)(dong)(dong)器(qi)(qi)分(fen)為常(chang)(chang)閉(bi)(bi)式、常(chang)(chang)開(kai)(kai)式、綜合(he)式三種(zhong)類型。起重機(ji)上多數采用常(chang)(chang)閉(bi)(bi)式制(zhi)動(dong)(dong)(dong)器(qi)(qi)，常(chang)(chang)閉(bi)(bi)式制(zhi)動(dong)(dong)(dong)器(qi)(qi)在機(ji)構不工作(zuo)期間(jian)是閉(bi)(bi)合(he)的。如(ru)果想要(yao)機(ji)構工作(zuo)，只需(xu)要(yao)焦作(zuo)制(zhi)動(dong)(dong)(dong)器(qi)(qi)松閘將(jiang)制(zhi)動(dong)(dong)(dong)器(qi)(qi)的摩擦(ca)副分(fen)開(kai)(kai)。

產品特性Product characteristics

 液壓直動制動器液壓直動制動器

可分(fen)為常(chang)(chang)(chang)閉式(shi)(shi)和常(chang)(chang)(chang)開(kai)式(shi)(shi)兩(liang)種。常(chang)(chang)(chang)閉式(shi)(shi)制(zhi)動器(qi)經(jing)常(chang)(chang)(chang)處(chu)于合閘(zha)(zha)狀(zhuang)(zhuang)(zhuang)態，當(dang)機(ji)構(gou)工(gong)(gong)作時，可用電磁鐵或電力液壓推桿器(qi)等(deng)外力的作用使之松(song)閘(zha)(zha)。常(chang)(chang)(chang)開(kai)式(shi)(shi)制(zhi)動器(qi)與(yu)之相反，它經(jing)常(chang)(chang)(chang)處(chu)于松(song)閘(zha)(zha)狀(zhuang)(zhuang)(zhuang)態，只有施加外力時，才(cai)能(neng)使它合閘(zha)(zha)。從工(gong)(gong)作安全(quan)出發，起重機(ji)的各工(gong)(gong)作機(ji)構(gou)都應(ying)采用常(chang)(chang)(chang)閉式(shi)(shi)制(zhi)動器(qi)。從工(gong)(gong)作狀(zhuang)(zhuang)(zhuang)態來(lai)看，0選(xuan)常閉(bi)式，只(zhi)有通電時(shi)才能松開(kai)工作，以免突然斷(duan)電重物自(zi)由下滑傷人。

制(zhi)動(dong)(dong)器(qi)(qi)的類型與(yu)結(jie)(jie)構(gou)橋式(shi)(shi)起(qi)重機的常用(yong)的制(zhi)動(dong)(dong)器(qi)(qi)有(you)：短行(xing)程(cheng)電(dian)子(zi)塊式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)、長行(xing)程(cheng)瓦(wa)式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)、液壓推(tui)桿瓦(wa)式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)、液壓電(dian)磁(ci)瓦(wa)塊式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)等(deng)。塊式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)①短行(xing)程(cheng)電(dian)子(zi)塊式(shi)(shi)制(zhi)動(dong)(dong)器(qi)(qi)：短行(xing)程(cheng)制(zhi)動(dong)(dong)器(qi)(qi)結(jie)(jie)構(gou)簡單、質量輕、制(zhi)動(dong)(dong)快。缺點是沖擊和噪聲壽命短，制(zhi)動(dong)(dong)力矩小，有(you)時有(you)剩磁(ci)現象，只適用(yong)于起(qi)升機構(gou)，無(wu)防爆型要用(yong)直流電(dian)源時需要更換電(dian)磁(ci)鐵。

長行(xing)程塊式制動(dong)器：這(zhe)種制動(dong)器的優(you)點是行(xing)程可以獲得較0的制動力矩(ju)，制動快，很少有剩磁現象，比較安全。缺點是(shi)沖擊和噪聲(sheng)較壽命不夠長(chang)，構件多(duo)且復雜，體積和質量效(xiao)率低，只(zhi)適用(yong)(yong)于起升機(ji)構。電(dian)力液壓塊(kuai)(kuai)式制動器(qi)：用(yong)(yong)液壓電(dian)磁塊(kuai)(kuai)替代長(chang)行程塊(kuai)(kuai)式制動器(qi)電(dian)磁鐵，有YWZ（液(ye)壓推(tui)桿(gan)）和YDWZ（液(ye)壓(ya)電磁鐵）兩種(zhong)。YWZ型制動平穩。

無噪聲、體積(ji)小，用于運行機(ji)構(gou)和回轉機(ji)構(gou)較好(hao)。因其制停(ting)動作較慢，不適宜(yi)起升(sheng)機(ji)構(gou)使用，以防溜(liu)鉤。YDWZ型各種性能都(dou)較好(hao)，而且不需(xu)經(jing)常調(diao)整，只需(xu)直流電源即可。帶式制動器：在外形尺寸受0制，制動轉矩要求(qiu)很0的場合，可考(kao)慮選用(yong)帶式制動(dong)(dong)(dong)器，流動(dong)(dong)(dong)式起重機上多采用(yong)這種制動(dong)(dong)(dong)裝(zhuang)置。帶式制動(dong)(dong)(dong)器的缺(que)點是安全性較低，制動(dong)(dong)(dong)帶斷裂將(jiang)造(zao)成嚴重后果。