浙江明新風機有限公司

冷卻塔風機的維護與檢修：

  冷卻塔風機的(de)(de)(de)主要部件有(you)傘齒(chi)(chi)(chi)輪(lun)(lun)(lun)、傘齒(chi)(chi)(chi)輪(lun)(lun)(lun)、斜齒(chi)(chi)(chi)輪(lun)(lun)(lun)和滾(gun)(gun)動(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)。在(zai)長(chang)期(qi)載(zai)荷作用下，齒(chi)(chi)(chi)輪(lun)(lun)(lun)的(de)(de)(de)失(shi)效(xiao)形式(shi)是(shi)輪(lun)(lun)(lun)齒(chi)(chi)(chi)工作面的(de)(de)(de)磨損(sun)和點(dian)蝕(shi)。齒(chi)(chi)(chi)輪(lun)(lun)(lun)磨損(sun)或點(dian)蝕(shi)后(hou)，運動(dong)(dong)精度(du)降低，噪聲(sheng)和振動(dong)(dong)增(zeng)大。當點(dian)蝕(shi)尺寸較大時，點(dian)蝕(shi)往往成(cheng)為疲勞(lao)的(de)(de)(de)根(gen)源，最終導致(zhi)輪(lun)(lun)(lun)齒(chi)(chi)(chi)疲勞(lao)斷裂。因此(ci)，齒(chi)(chi)(chi)輪(lun)(lun)(lun)接觸(chu)精度(du)和點(dian)蝕(shi)應每(mei)年檢(jian)查一次。接觸(chu)精度(du)要求見(jian)表1。凹坑(keng)的(de)(de)(de)尺寸和長(chang)度(du)不(bu)(bu)應超(chao)過齒(chi)(chi)(chi)長(chang)的(de)(de)(de)1/3和齒(chi)(chi)(chi)高的(de)(de)(de)1/2。滾(gun)(gun)動(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)的(de)(de)(de)常(chang)見(jian)失(shi)效(xiao)形式(shi)是(shi)滾(gun)(gun)動(dong)(dong)體或內外(wai)(wai)環滾(gun)(gun)道的(de)(de)(de)點(dian)蝕(shi)損(sun)傷。當發生點(dian)蝕(shi)失(shi)效(xiao)時，會產生強烈的(de)(de)(de)振動(dong)(dong)、噪聲(sheng)和發熱。由于滾(gun)(gun)動(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)不(bu)(bu)應經常(chang)拆卸，且(qie)受結構和安(an)裝(zhuang)位置的(de)(de)(de)限(xian)制，直接檢(jian)查滾(gun)(gun)動(dong)(dong)軸(zhou)(zhou)承(cheng)(cheng)(cheng)比較困難。停止機器(qi)后(hou)，轉(zhuan)(zhuan)動(dong)(dong)齒(chi)(chi)(chi)輪(lun)(lun)(lun)并(bing)將聲(sheng)音(yin)棒粘在(zai)軸(zhou)(zhou)承(cheng)(cheng)(cheng)箱上。仔細(xi)聽軸(zhou)(zhou)承(cheng)(cheng)(cheng)轉(zhuan)(zhuan)動(dong)(dong)的(de)(de)(de)聲(sheng)音(yin)。軸(zhou)(zhou)承(cheng)(cheng)(cheng)正常(chang)轉(zhuan)(zhuan)動(dong)(dong)的(de)(de)(de)聲(sheng)音(yin)應清晰、連(lian)續(xu)(xu)(xu)、均勻。如果(guo)聲(sheng)音(yin)沉(chen)悶(men)、斷斷續(xu)(xu)(xu)續(xu)(xu)(xu)、發夾，說明軸(zhou)(zhou)承(cheng)(cheng)(cheng)可能有(you)缺陷。應拆下進(jin)行(xing)進(jin)一步檢(jian)查，并(bing)在(zai)確認故障后(hou)更換。此(ci)外(wai)(wai)，使用優質(zhi)潤滑油(you)和添加適(shi)當的(de)(de)(de)添加劑(ji)有(you)助于延(yan)長(chang)齒(chi)(chi)(chi)輪(lun)(lun)(lun)和軸(zhou)(zhou)承(cheng)(cheng)(cheng)的(de)(de)(de)使用壽(shou)命(ming)。我公司定期(qi)對潤滑油(you)的(de)(de)(de)粘度(du)、酸(suan)值、機械雜質(zhi)等重(zhong)要指標進(jin)行(xing)檢(jian)測，不(bu)(bu)合格(ge)及時更換。此(ci)外(wai)(wai)，在(zai)l85a和lf60風機減(jian)速器(qi)中添加了潤滑油(you)添加劑(ji)。這兩臺(tai)風機齒(chi)(chi)(chi)輪(lun)(lun)(lun)和軸(zhou)(zhou)承(cheng)(cheng)(cheng)的(de)(de)(de)設(she)計壽(shou)命(ming)為50000小時。自(zi)1997年以來，它們(men)已連(lian)續(xu)(xu)(xu)運行(xing)6萬多(duo)小時，齒(chi)(chi)(chi)輪(lun)(lun)(lun)和軸(zhou)(zhou)承(cheng)(cheng)(cheng)狀況(kuang)良好。

冷卻塔風機梅花聯軸器檢修：

  保(bao)壓(ya)塔軸(zhou)(zhou)流式風機聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)好壞直(zhi)接(jie)關系到風機的(de)(de)(de)平穩運(yun)行。我公(gong)司(si)Lf47、l85a、lf60冷卻(que)塔風機分別采用彈性(xing)(xing)(xing)(xing)環(huan)銷(xiao)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)、彈性(xing)(xing)(xing)(xing)銷(xiao)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)、膜片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)。這三種聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)都(dou)起到傳遞扭矩和緩(huan)沖振動的(de)(de)(de)作用。其中，彈性(xing)(xing)(xing)(xing)環(huan)銷(xiao)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)彈性(xing)(xing)(xing)(xing)環(huan)、彈性(xing)(xing)(xing)(xing)銷(xiao)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)橡(xiang)膠接(jie)頭(tou)和膜片(pian)(pian)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)彈性(xing)(xing)(xing)(xing)膜片(pian)(pian)都(dou)是彈性(xing)(xing)(xing)(xing)元件(jian)，可以(yi)補償軸(zhou)(zhou)的(de)(de)(de)相對(dui)位移。由于(yu)反復起動的(de)(de)(de)沖擊、長期(qi)的(de)(de)(de)振動磨損(sun)、腐蝕和老化，彈性(xing)(xing)(xing)(xing)元件(jian)會失(shi)效。因此，每(mei)年都(dou)有必要進行定期(qi)檢查。如果橡(xiang)膠元件(jian)老化、磨損(sun)，彈性(xing)(xing)(xing)(xing)膜片(pian)(pian)倒伏或損(sun)壞，應及時更換。另外，在(zai)安裝或維修過程中，為減(jian)少聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)不(bu)對(dui)中的(de)(de)(de)影響，兩(liang)半聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)的(de)(de)(de)同(tong)軸(zhou)(zhou)度誤差不(bu)大于(yu)0.1mm。

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