膜片聯軸器在傳遞扭矩的同時通過彈性膜片的的變形來補償軸向和角向的位移,是一種高性能的金屬彈性撓性聯軸器。膜片式聯軸器結構緊湊,傳(chuan)遞扭矩大,使用壽命長,免維護(hu),耐高溫,耐酸堿防腐蝕(shi)(shi),適用于高溫高速(su)及有(you)腐蝕(shi)(shi)工(gong)況環境的軸(zhou)系(xi)傳(chuan)動(dong)。
膜片(pian)型聯(lian)(lian)軸(zhou)器能補償主動機(ji)與(yu)從(cong)動機(ji)之間由于制造誤(wu)差、安裝誤(wu)差、承載變形以及溫(wen)升變化的影響等所(suo)引起的軸(zhou)向、徑向和角向偏移。膜片(pian)彈性(xing)(xing)聯(lian)(lian)軸(zhou)器屬金(jin)屬彈性(xing)(xing)元件撓性(xing)(xing)聯(lian)(lian)軸(zhou)器,其依靠金(jin)屬聯(lian)(lian)軸(zhou)器膜片(pian)來聯(lian)(lian)接(jie)主、從(cong)動機(ji)傳遞扭矩,具(ju)有(you)彈性(xing)(xing)減振、無噪聲、不需潤滑的優點。
膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器至少由一(yi)個膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)和(he)兩個軸(zhou)(zhou)套組成。膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)被(bei)用銷(xiao)釘緊(jin)固(gu)在軸(zhou)(zhou)套上(shang)一(yi)般不(bu)會松動或(huo)引(yin)起膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)和(he)軸(zhou)(zhou)套之(zhi)間的(de)反(fan)沖(chong)。有一(yi)些生產商提供(gong)兩個膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)的(de),也(ye)有提供(gong)三個膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)的(de),中間有一(yi)個或(huo)兩個剛性元件,兩邊 再(zai)連在軸(zhou)(zhou)套上(shang)。單膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器和(he)雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器的(de)不(bu)同(tong)之(zhi)處是處理各種(zhong)偏差能(neng)力(li)的(de)不(bu)同(tong),鑒(jian)于其需要膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)能(neng)復雜的(de)彎曲,所以單膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器不(bu)太適應偏心(xin)。而雙(shuang)膜(mo)片(pian)(pian)(pian)(pian)(pian)(pian)聯(lian)軸(zhou)(zhou)器可以同(tong)時曲向不(bu)同(tong)的(de)方向,以此(ci)來補(bu)償偏心(xin)。
梅花聯軸器是一種應用很普遍的聯軸器,也叫爪式聯軸器,是由兩個金屬爪盤和一個彈性體組成。兩個金屬爪盤一般是45號鋼,但是在要求載荷靈敏的情況下也有用鋁合金的。梅花形聯軸器經(jing)過車削,銑削,和拉削等機(ji)加工(gong)方法加工(gong)而(er)成,再經(jing)過整體熱處(chu)理。以保證足夠的機(ji)械強度,市(shi)面上還有一種爪(zhua)盤(pan)是鑄(zhu)件(jian),能夠大(da)批量的生產,而(er)且免去了加工(gong)損耗。
梅花型聯軸器彈性體一般都是由工程塑料或橡膠組成。梅花形彈性聯軸器的壽命也就是彈性體的壽命。由于彈性體是受壓而不易受拉。一般彈性體的壽命為10年。由于彈性體具有緩沖,減振的作用,所以在有強烈振動的場合下使用較多。彈性體的性能極限溫度,決定了梅花彈性聯軸器的使用溫(wen)度(du),一般(ban)為-35至+80度(du)。
星形聯(lian)(lian)軸(zhou)(zhou)器(qi)高(gao)速運轉時由于(yu)受(shou)離心力(li)的(de)作用而產生(sheng)的(de)徑(jing)向運動將(jiang)加(jia)速其磨損,加(jia)設外(wai)(wai)殼(ke)。除(chu)了能(neng)防塵(chen)存油外(wai)(wai),減(jian)薄量(liang)不足(zu)可(ke)能(neng)會(hui)造成(cheng)(cheng)干涉,減(jian)薄量(liang)過大會(hui)削弱齒(chi)(chi)(chi)的(de)強度(du),且會(hui)側隙很大。外(wai)(wai)齒(chi)(chi)(chi)的(de)接觸條件得到改善,避(bi)免了在角位移條件下直齒(chi)(chi)(chi)齒(chi)(chi)(chi)端棱邊擠壓,應(ying)力(li)集中的(de)弊端,同時改善了齒(chi)(chi)(chi)面摩擦(ca)、磨損狀況(kuang),降(jiang)低了噪聲,維修周(zhou)期長。星形彈性聯(lian)(lian)軸(zhou)(zhou)器(qi)外(wai)(wai)齒(chi)(chi)(chi)套齒(chi)(chi)(chi)端呈喇叭(ba)形狀,故(gu)不宜在高(gao)速和(he)有沖擊載(zai)荷情(qing)況(kuang)下使(shi)用,也(ye)不宜用于(yu)立(li)軸(zhou)(zhou)的(de)聯(lian)(lian)接。星型(xing)彈性聯(lian)(lian)軸(zhou)(zhou)器(qi)整體結構設計時,要(yao)充分(fen)注意齒(chi)(chi)(chi)面與(yu)滾子(zi)之間(jian)的(de)潤滑及防塵(chen),還(huan)有安全(quan)防護(hu)作用。因(yin)為鏈條萬(wan)一破斷,可(ke)能(neng)造成(cheng)(cheng)人身事(shi)故(gu)。鼓度(du)曲線曲率(lv)半(ban)徑(jing)與(yu)內齒(chi)(chi)(chi)單側減(jian)薄量(liang)成(cheng)(cheng)正比,即它與(yu)齒(chi)(chi)(chi)的(de)嚙合間(jian)隙有關,使(shi)內、外(wai)(wai)齒(chi)(chi)(chi)裝拆十分(fen)方(fang)便(bian)。
星(xing)(xing)型(xing)聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器有(you)時被誤認為(wei)是梅花聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器,他(ta)們安裝后的(de)外形(xing)幾乎相(xiang)似,但是同等(deng)型(xing)號(hao)下,星(xing)(xing)形(xing)聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器承受的(de)扭力(li)更(geng)(geng)大,相(xiang)對梅花聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器,它的(de)內孔和外形(xing)可以做到(dao)更(geng)(geng)小。星(xing)(xing)形(xing)彈性(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器聚氨脂(zhi)彈性(xing)(xing)體由凸形(xing)爪塊(kuai)限制(zhi),聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器是以工程(cheng)塑(su)(su)料(liao)作彈性(xing)(xing)元(yuan)(yuan)件,適用于聯(lian)(lian)(lian)(lian)(lian)(lian)接兩(liang)(liang)同軸(zhou)(zhou)(zhou)線的(de)傳動軸(zhou)(zhou)(zhou)系,具有(you)補償兩(liang)(liang)軸(zhou)(zhou)(zhou)相(xiang)對偏(pian)移、緩(huan)沖、減(jian)震(zhen)(zhen)、耐磨性(xing)(xing)能(neng),適應場合普遍(bian) ,傳遞(di)轉(zhuan)矩20-35000.N.M,工作溫(wen)度(du)-35-+80攝(she)氏度(du)。星(xing)(xing)型(xing)彈性(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器中的(de)彈性(xing)(xing)元(yuan)(yuan)件是工程(cheng)塑(su)(su)料(liao),由于該工程(cheng)塑(su)(su)料(liao)具有(you)良好(hao)的(de)彈性(xing)(xing)、緩(huan)沖性(xing)(xing)、減(jian)震(zhen)(zhen)性(xing)(xing)、耐磨性(xing)(xing),因此(ci)能(neng)很好(hao)的(de)補償兩(liang)(liang)傳動軸(zhou)(zhou)(zhou)系之間的(de)各種位(wei)移.星(xing)(xing)形(xing)彈性(xing)(xing)聯(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器的(de)聚氨脂(zhi)彈性(xing)(xing)體由凸形(xing)爪塊(kuai)限制(zhi)。特點:預應力(li)下無(wu)齒隙的(de)連接,用于主(zhu)軸(zhou)(zhou)(zhou)傳動、升降平(ping)臺(tai)和機床等(deng)。
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