是能固定或分(fen)檔改(gai)變(bian)輸(shu)出軸(zhou)和輸(shu)入(ru)軸(zhou)傳(chuan)(chuan)動比的(de)齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動裝置。又稱變(bian)速(su)(su)(su)(su)箱。變(bian)速(su)(su)(su)(su)器(qi)由傳(chuan)(chuan)動機構(gou)(gou)(gou)和變(bian)速(su)(su)(su)(su)機構(gou)(gou)(gou)組成(cheng)，可制(zhi)成(cheng)單獨變(bian)速(su)(su)(su)(su)機構(gou)(gou)(gou)或與傳(chuan)(chuan)動機構(gou)(gou)(gou)合(he)(he)裝在同(tong)一(yi)殼體內。傳(chuan)(chuan)動機構(gou)(gou)(gou)大多(duo)用(yong)(yong)普通齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動，也(ye)有(you)的(de)用(yong)(yong)行(xing)星齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動。普通齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動變(bian)速(su)(su)(su)(su)機構(gou)(gou)(gou)一(yi)般用(yong)(yong)滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)和離合(he)(he)器(qi)等。滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)有(you)多(duo)聯滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)和變(bian)位滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)之分(fen)。用(yong)(yong)三聯滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)變(bian)速(su)(su)(su)(su)，軸(zhou)向(xiang)尺寸大；用(yong)(yong)變(bian)位滑移(yi)齒(chi)(chi)(chi)輪(lun)(lun)變(bian)速(su)(su)(su)(su) ，結(jie)構(gou)(gou)(gou)緊(jin)湊 ，但傳(chuan)(chuan)動比變(bian)化(hua)小。離合(he)(he)器(qi)有(you)嚙合(he)(he)式(shi)和摩(mo)擦(ca)式(shi)之分(fen)。用(yong)(yong)嚙合(he)(he)式(shi)離合(he)(he)器(qi)時(shi)，變(bian)速(su)(su)(su)(su)應在停車或轉速(su)(su)(su)(su)差很小時(shi)進(jin)行(xing)，用(yong)(yong)摩(mo)擦(ca)式(shi)離合(he)(he)器(qi)可在運轉中任意轉速(su)(su)(su)(su)差時(shi)進(jin)行(xing)變(bian)速(su)(su)(su)(su)，但承載(zai)能力小，且不(bu)能保證兩(liang)軸(zhou)嚴格同(tong)步(bu)。為(wei)克服這(zhe)一(yi)缺點，在嚙合(he)(he)式(shi)離合(he)(he)器(qi)上裝以摩(mo)擦(ca)片，變(bian)速(su)(su)(su)(su)時(shi)先靠摩(mo)擦(ca)片把從動輪(lun)(lun)帶到同(tong)步(bu)轉速(su)(su)(su)(su)后再(zai)進(jin)行(xing)接(jie)合(he)(he)。行(xing)星齒(chi)(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動變(bian)速(su)(su)(su)(su)器(qi)可用(yong)(yong)制(zhi)動器(qi)控制(zhi)變(bian)速(su)(su)(su)(su)。

festo分水過濾器

費(fei)斯托自動排水(shui)過(guo)濾(lv)器濾(lv)芯

FESTO分水過(guo)濾器(qi)(qi)(qi)：激磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)線圈(quan)(quan)通電(dian)時(shi)形成磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)，磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)粉(fen)在磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)作用(yong)下磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)化(hua),形成磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)粉(fen)鏈,并(bing)在固定的(de)(de)(de)導磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)體與轉子間聚合，靠磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)粉(fen)的(de)(de)(de)結(jie)合力(li)(li)(li)和摩擦力(li)(li)(li)實(shi)現制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。激磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)電(dian)流消失時(shi)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)粉(fen)處于自由松散狀態，制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)作用(yong)解(jie)除。這種(zhong)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)體積小(xiao)，重量輕,激磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)功率小(xiao),而(er)且制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)力(li)(li)(li)矩與轉動(dong)(dong)(dong)(dong)(dong)(dong)(dong)件(jian)轉速無關(guan)，可通過(guo)調(diao)節電(dian)流來調(diao)節制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)扭矩，但(dan)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)粉(fen)會引(yin)起零件(jian)磨損。它便(bian)于自動(dong)(dong)(dong)(dong)(dong)(dong)(dong)控(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)，適用(yong)于各(ge)種(zhong)機(ji)器(qi)(qi)(qi)的(de)(de)(de)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)系統。②電(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)渦流制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)：激磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)線圈(quan)(quan)通電(dian)時(shi)形成磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)。制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)軸上(shang)的(de)(de)(de)電(dian)樞(shu)(shu)旋轉切(qie)割(ge)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)力(li)(li)(li)線而(er)產生渦流。電(dian)樞(shu)(shu)內(nei)的(de)(de)(de)渦流與磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)相互(hu)作用(yong)形成制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)力(li)(li)(li)矩。電(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)渦流制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)堅固耐用(yong)、維修(xiu)方便(bian)、調(diao)速范圍大；但(dan)低速時(shi)效(xiao)率低、溫升高，必須采取散熱措施。這種(zhong)制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)常用(yong)于有(you)垂直載荷的(de)(de)(de)機(ji)械中。③電(dian)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)摩擦式制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)器(qi)(qi)(qi)：激磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)線圈(quan)(quan)通電(dian)產生磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)場(chang)(chang)，通過(guo)磁(ci)(ci)(ci)(ci)(ci)(ci)(ci)軛吸(xi)合銜鐵(tie)，銜鐵(tie)通過(guo)聯結(jie)件(jian)實(shi)現制(zhi)(zhi)(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)。

FESTO分(fen)(fen)水過濾器齒(chi)輪(lun)(lun)在正常(chang)工作條件下,齒(chi)面(mian)(mian)呈現出均(jun)勻的磨(mo)損,要求沿齒(chi)長方向磨(mo)損不(bu)應(ying)(ying)超過原齒(chi)長的百分(fen)(fen)之30;齒(chi)厚不(bu)應(ying)(ying)超過0.40;齒(chi)輪(lun)(lun)嚙(nie)(nie)合面(mian)(mian)積不(bu)低于齒(chi)面(mian)(mian)的3分(fen)(fen)之2;運轉齒(chi)輪(lun)(lun)嚙(nie)(nie)合間隙(xi)一般應(ying)(ying)為(wei)0.15-0.26mm,使用(yong)限度為(wei)0.80mm;接合齒(chi)輪(lun)(lun)嚙(nie)(nie)合間隙(xi)應(ying)(ying)為(wei)0.10-0.15mm,使用(yong)限度為(wei)0.60mm.可(ke)用(yong)百分(fen)(fen)表或軟金(jin)屬(shu)傾軋(ya)法測量.如(ru)果超過間隙(xi),應(ying)(ying)成對更換(huan).

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