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(jie)構緊湊,傳遞扭矩大,使用壽命長(chang),免維護,耐高(gao)溫,耐酸堿防腐蝕(shi),適用于高(gao)溫高(gao)速及有腐蝕(shi)工況環境的軸(zhou)系傳動。
膜片(pian)(pian)型聯(lian)(lian)軸器(qi)能補償主動(dong)機(ji)(ji)(ji)與從(cong)(cong)動(dong)機(ji)(ji)(ji)之(zhi)間由于制(zhi)造誤差、安裝誤差、承載變形以及溫(wen)升變化(hua)的(de)影響(xiang)等(deng)所引起的(de)軸向(xiang)、徑向(xiang)和角向(xiang)偏移。膜片(pian)(pian)彈(dan)性(xing)聯(lian)(lian)軸器(qi)屬金屬彈(dan)性(xing)元件(jian)撓性(xing)聯(lian)(lian)軸器(qi),其依靠金屬聯(lian)(lian)軸器(qi)膜片(pian)(pian)來(lai)聯(lian)(lian)接主、從(cong)(cong)動(dong)機(ji)(ji)(ji)傳遞(di)扭矩,具有彈(dan)性(xing)減振、無噪聲(sheng)、不需潤(run)滑的(de)優點。
膜(mo)(mo)(mo)片(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)至少由一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)膜(mo)(mo)(mo)片(pian)和兩個(ge)(ge)(ge)(ge)(ge)軸(zhou)(zhou)套組成。膜(mo)(mo)(mo)片(pian)被用(yong)銷(xiao)釘(ding)緊固在軸(zhou)(zhou)套上(shang)一(yi)(yi)般不(bu)(bu)會(hui)松動或(huo)引(yin)起(qi)膜(mo)(mo)(mo)片(pian)和軸(zhou)(zhou)套之間的(de)反沖。有一(yi)(yi)些生產(chan)商提供兩個(ge)(ge)(ge)(ge)(ge)膜(mo)(mo)(mo)片(pian)的(de),也有提供三(san)個(ge)(ge)(ge)(ge)(ge)膜(mo)(mo)(mo)片(pian)的(de),中間有一(yi)(yi)個(ge)(ge)(ge)(ge)(ge)或(huo)兩個(ge)(ge)(ge)(ge)(ge)剛性元件,兩邊 再連(lian)在軸(zhou)(zhou)套上(shang)。單(dan)膜(mo)(mo)(mo)片(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)和雙膜(mo)(mo)(mo)片(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)的(de)不(bu)(bu)同之處(chu)是處(chu)理各種偏差能力的(de)不(bu)(bu)同,鑒于其需要(yao)膜(mo)(mo)(mo)片(pian)能復雜的(de)彎曲,所以(yi)單(dan)膜(mo)(mo)(mo)片(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)不(bu)(bu)太(tai)適應偏心。而雙膜(mo)(mo)(mo)片(pian)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)可以(yi)同時曲向不(bu)(bu)同的(de)方向,以(yi)此(ci)來補償偏心。
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(guo)車削,銑削,和拉削等(deng)機加(jia)工(gong)方(fang)法(fa)加(jia)工(gong)而成(cheng),再經(jing)過(guo)整體熱處理。以(yi)保(bao)證足夠的機械(xie)強度,市面上還有一種爪盤(pan)是鑄件,能(neng)夠大批(pi)量(liang)的生(sheng)產,而且免(mian)去了加(jia)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度,一般(ban)為-35至+80度。
星(xing)形(xing)聯(lian)軸(zhou)器高(gao)(gao)速(su)運(yun)轉(zhuan)時由于(yu)受離(li)心力的(de)(de)(de)作用而產生的(de)(de)(de)徑(jing)向運(yun)動將加(jia)速(su)其磨(mo)損,加(jia)設外(wai)殼。除了(le)能防(fang)(fang)塵存(cun)油(you)外(wai),減(jian)薄量不(bu)足可能會造成(cheng)干涉,減(jian)薄量過大(da)(da)會削弱齒(chi)(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)強度,且會側隙(xi)很大(da)(da)。外(wai)齒(chi)(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)接(jie)觸條件得到(dao)改善(shan),避免了(le)在角位移條件下(xia)直齒(chi)(chi)(chi)(chi)(chi)(chi)齒(chi)(chi)(chi)(chi)(chi)(chi)端(duan)棱邊擠壓,應力集(ji)中的(de)(de)(de)弊端(duan),同時改善(shan)了(le)齒(chi)(chi)(chi)(chi)(chi)(chi)面摩(mo)擦、磨(mo)損狀況,降低了(le)噪聲,維修周期長。星(xing)形(xing)彈(dan)性(xing)聯(lian)軸(zhou)器外(wai)齒(chi)(chi)(chi)(chi)(chi)(chi)套齒(chi)(chi)(chi)(chi)(chi)(chi)端(duan)呈(cheng)喇叭形(xing)狀,故(gu)不(bu)宜(yi)在高(gao)(gao)速(su)和有沖(chong)擊(ji)載荷(he)情況下(xia)使用,也不(bu)宜(yi)用于(yu)立軸(zhou)的(de)(de)(de)聯(lian)接(jie)。星(xing)型彈(dan)性(xing)聯(lian)軸(zhou)器整體結構設計時,要充分(fen)(fen)注意(yi)齒(chi)(chi)(chi)(chi)(chi)(chi)面與滾子之間的(de)(de)(de)潤滑及防(fang)(fang)塵,還有安全(quan)防(fang)(fang)護(hu)作用。因為鏈條萬一破斷(duan),可能造成(cheng)人身事(shi)故(gu)。鼓(gu)度曲線曲率半(ban)徑(jing)與內齒(chi)(chi)(chi)(chi)(chi)(chi)單側減(jian)薄量成(cheng)正比,即它(ta)與齒(chi)(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)嚙(nie)合(he)間隙(xi)有關,使內、外(wai)齒(chi)(chi)(chi)(chi)(chi)(chi)裝(zhuang)拆(chai)十分(fen)(fen)方(fang)便。
星(xing)型(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)有(you)(you)時被誤(wu)認為是(shi)梅花(hua)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi),他們(men)安裝后的外形(xing)幾(ji)乎相似,但是(shi)同(tong)(tong)等(deng)型(xing)號(hao)下,星(xing)形(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)承(cheng)受(shou)的扭力更大,相對(dui)梅花(hua)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi),它(ta)的內孔和外形(xing)可以做到更小。星(xing)形(xing)彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)聚氨脂彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)體由(you)凸形(xing)爪塊限(xian)制,聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)是(shi)以工(gong)程(cheng)塑(su)(su)料作彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)元件(jian),適用于(yu)聯(lian)(lian)接兩(liang)(liang)同(tong)(tong)軸(zhou)(zhou)(zhou)線的傳(chuan)動(dong)(dong)軸(zhou)(zhou)(zhou)系,具(ju)有(you)(you)補(bu)償(chang)兩(liang)(liang)軸(zhou)(zhou)(zhou)相對(dui)偏移、緩(huan)沖、減震(zhen)、耐磨(mo)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng),適應(ying)場合普遍 ,傳(chuan)遞轉矩20-35000.N.M,工(gong)作溫度-35-+80攝氏(shi)度。星(xing)型(xing)彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)中的彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)元件(jian)是(shi)工(gong)程(cheng)塑(su)(su)料,由(you)于(yu)該工(gong)程(cheng)塑(su)(su)料具(ju)有(you)(you)良好的彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)、緩(huan)沖性(xing)(xing)(xing)(xing)(xing)、減震(zhen)性(xing)(xing)(xing)(xing)(xing)、耐磨(mo)性(xing)(xing)(xing)(xing)(xing),因此能(neng)(neng)很(hen)好的補(bu)償(chang)兩(liang)(liang)傳(chuan)動(dong)(dong)軸(zhou)(zhou)(zhou)系之間的各種(zhong)位(wei)移.星(xing)形(xing)彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)的聚氨脂彈(dan)(dan)(dan)性(xing)(xing)(xing)(xing)(xing)體由(you)凸形(xing)爪塊限(xian)制。特點:預應(ying)力下無(wu)齒隙的連(lian)接,用于(yu)主軸(zhou)(zhou)(zhou)傳(chuan)動(dong)(dong)、升降平臺和機床等(deng)。
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