鑄(zhu)鐵聯軸器應用(yong)在高轉速功率的(de)馬達上是(shi)否(fou)會發生扭斷現象
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鑄(zhu)鐵(tie)(tie)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)主要(yao)應(ying)該在馬達電機(ji)和水泵上(shang)使用(yong),因為鑄(zhu)鐵(tie)(tie)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)加工簡單,成本低(di)所以(yi)用(yong)量較(jiao)為廣泛。每臺水泵和電機(ji)之間(jian)都需要(yao)鑄(zhu)鐵(tie)(tie)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)連(lian)接,*常見的(de)(de)鑄(zhu)鐵(tie)(tie)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)有三爪(zhua)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)和彈性(xing)(xing)套柱銷聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)及彈性(xing)(xing)柱銷聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)三種。鑄(zhu)鐵(tie)(tie)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)材質有球墨鑄(zhu)鐵(tie)(tie)及灰鐵(tie)(tie)兩種,但是在高轉(zhuan)速大功率的(de)(de)電機(ji)上(shang)使用(yong)此(ci)聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)是否會出現扭斷現象,對于高轉(zhuan)速的(de)(de)扭轉(zhuan)下(xia),聯(lian)(lian)(lian)(lian)(lian)(lian)(lian)軸(zhou)(zhou)器(qi)中的(de)(de)彈性(xing)(xing)體(ti)是否會受熱軟(ruan)化變(bian)形;
對此,拓(tuo)進(jin)(jin)(jin)機械廠技(ji)術人員進(jin)(jin)(jin)行(xing)了(le)**分析(xi),主(zhu)要(yao)得(de)到以下結論,對于高轉(zhuan)速的介質中(zhong),彈性(xing)體(ti)必(bi)(bi)須(xu)(xu)采用聚(ju)氨酯材質,耐高溫(wen)(wen)(wen)情況達(da)到100攝氏(shi)度(du),對于高扭矩介質中(zhong),鑄(zhu)鐵(tie)(tie)聯軸(zhou)(zhou)器(qi)材質必(bi)(bi)須(xu)(xu)要(yao)使用可鍛(duan)鑄(zhu)鐵(tie)(tie),因為(wei)一般鑄(zhu)件(jian)加熱到Afc1以上30~50℃(Afc1代(dai)表加熱時A形成(cheng)終了(le)溫(wen)(wen)(wen)度(du)),保溫(wen)(wen)(wen)后(hou)淬入(ru)油(you)中(zhong),得(de)到馬氏(shi)體(ti)組織。為(wei)了(le)適當降低淬火(huo)后(hou)的殘余應力(li),一般淬火(huo)后(hou)應進(jin)(jin)(jin)行(xing)回火(huo),低溫(wen)(wen)(wen)回火(huo)組織為(wei)回火(huo)馬氏(shi)作(zuo)加殘留貝(bei)氏(shi)體(ti)再加球狀石墨。這(zhe)種(zhong)組織耐磨(mo)性(xing)好(hao),用于要(yao)求高耐磨(mo)性(xing),高強度(du)的零(ling)件(jian),從而使聯軸(zhou)(zhou)器(qi)不(bu)會發生扭斷現象。