KUBLER編碼器8.5820.3532.1024翊霈優質推薦
發布日期:2023-12-21
簡要描述:
編碼器(encoder)是將信號(如比特流)或數據進行編制、轉換為可用以通訊、傳輸和存儲的信號形式的設備。編碼器把角位移或直線位移轉換成電信號,前者稱為碼盤,后者稱為碼尺。按照讀出方式編碼器可以分為接觸式和非接觸式兩種;
由一(yi)(yi)個(ge)中心有(you)軸(zhou)的(de)光電碼(ma)盤,其上有(you)環形通、暗的(de)刻線,有(you)光電發射和接收器件讀(du)取,獲得四組(zu)正弦波信號組(zu)合成A、B、C、D,每(mei)(mei)個(ge)正弦波相(xiang)差90度相(xiang)位差(相(xiang)對(dui)于一(yi)(yi)個(ge)周(zhou)波為360度),將(jiang)C、D信號反(fan)向,疊加在(zai)A、B兩相(xiang)上,可增強穩定信號;另每(mei)(mei)轉(zhuan)輸(shu)出一(yi)(yi)個(ge)Z相(xiang)脈沖以代(dai)表(biao)零位參考位。
制冷機(refrigerating machine) 將具有較低溫度的被冷卻物體的熱量轉移給環境介質從而獲得冷量的機器。從較低溫度物體轉移的熱量習慣上稱為冷量。制冷機內參與熱力過程變化(能量轉換和熱量轉移)的工質稱為制冷劑。制冷的溫度范圍通常在120K以上,120K以下屬深低溫技術范圍。制冷機廣泛應用于工農業生產和日常生活中。
軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(Bearing)是(shi)(shi)(shi)當(dang)代機械設備中一(yi)(yi)(yi)種(zhong)重要(yao)(yao)(yao)零部(bu)件。它(ta)的(de)(de)(de)主要(yao)(yao)(yao)功能(neng)(neng)是(shi)(shi)(shi)支撐機械旋(xuan)轉(zhuan)體,降(jiang)低(di)其(qi)運(yun)動(dong)過程中的(de)(de)(de)摩(mo)擦(ca)(ca)系(xi)數(shu)(shu)。滾(gun)動(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)之(zhi)壽(shou)(shou)命以轉(zhuan)數(shu)(shu)(或(huo)以一(yi)(yi)(yi)定轉(zhuan)速下的(de)(de)(de)工(gong)作(zuo)(zuo)的(de)(de)(de)小時數(shu)(shu))定義(yi):在(zai)(zai)(zai)此壽(shou)(shou)命以內的(de)(de)(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng),應(ying)(ying)在(zai)(zai)(zai)其(qi)任(ren)(ren)何軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)圈或(huo)滾(gun)動(dong)體上(shang)發(fa)生初步疲勞損(sun)(sun)壞(huai)(剝落或(huo)缺損(sun)(sun))。然而無(wu)(wu)論在(zai)(zai)(zai)實(shi)(shi)驗室試驗或(huo)在(zai)(zai)(zai)實(shi)(shi)際使(shi)(shi)用(yong)中,都可(ke)明顯的(de)(de)(de)看到,在(zai)(zai)(zai)同(tong)(tong)(tong)樣的(de)(de)(de)工(gong)作(zuo)(zuo)條件下的(de)(de)(de)外觀相同(tong)(tong)(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng),實(shi)(shi)際壽(shou)(shou)命大(da)不(bu)相同(tong)(tong)(tong)。此外還(huan)有數(shu)(shu)種(zhong)不(bu)同(tong)(tong)(tong)定義(yi)的(de)(de)(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)“壽(shou)(shou)命”,其(qi)中之(zhi)一(yi)(yi)(yi)即所(suo)謂的(de)(de)(de)“工(gong)作(zuo)(zuo)壽(shou)(shou)命”,它(ta)表(biao)示某一(yi)(yi)(yi)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)在(zai)(zai)(zai)損(sun)(sun)壞(huai)之(zhi)前可(ke)達到的(de)(de)(de)實(shi)(shi)際壽(shou)(shou)命是(shi)(shi)(shi)由磨損(sun)(sun)、損(sun)(sun)壞(huai)通常(chang)并非由疲勞所(suo)致,而是(shi)(shi)(shi)由磨損(sun)(sun)、腐蝕、密(mi)封損(sun)(sun)壞(huai)等原因(yin)造(zao)成。深溝球軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)具代表(biao)性(xing)的(de)(de)(de)滾(gun)動(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)。與(yu)尺寸相同(tong)(tong)(tong)的(de)(de)(de)其(qi)它(ta)類(lei)(lei)(lei)型(xing)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)相比,該類(lei)(lei)(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)摩(mo)擦(ca)(ca)系(xi)數(shu)(shu)小,極(ji)限(xian)轉(zhuan)速高(gao),結構簡單(dan),制造(zao)成本低(di),精度高(gao),無(wu)(wu)需經常(chang)維護,而且尺寸范圍大(da)、形式多(duo),是(shi)(shi)(shi)應(ying)(ying)用(yong)*的(de)(de)(de)一(yi)(yi)(yi)類(lei)(lei)(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)。它(ta)主要(yao)(yao)(yao)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受徑向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he),也(ye)(ye)可(ke)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受一(yi)(yi)(yi)定的(de)(de)(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)。當(dang)其(qi)僅承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受徑向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)時,接(jie)觸角為零。金(jin)屬直(zhi)(zhi)線(xian)(xian)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)一(yi)(yi)(yi)種(zhong)以低(di)成本生產的(de)(de)(de)直(zhi)(zhi)線(xian)(xian)運(yun)動(dong)系(xi)統(tong),用(yong)于(yu)無(wu)(wu)限(xian)行(xing)程與(yu)圓柱(zhu)軸(zhou)(zhou)(zhou)(zhou)(zhou)配合使(shi)(shi)用(yong)。由于(yu)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)載(zai)(zai)(zai)(zai)(zai)(zai)球與(yu)軸(zhou)(zhou)(zhou)(zhou)(zhou)呈點接(jie)觸,故使(shi)(shi)用(yong)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)小。鋼球以極(ji)小的(de)(de)(de)摩(mo)擦(ca)(ca)阻力旋(xuan)轉(zhuan),從而能(neng)(neng)獲得高(gao)精度的(de)(de)(de)平穩運(yun)動(dong)。塑料(liao)直(zhi)(zhi)線(xian)(xian)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)一(yi)(yi)(yi)種(zhong)自潤滑(hua)特(te)性(xing)的(de)(de)(de)直(zhi)(zhi)線(xian)(xian)運(yun)動(dong)系(xi)統(tong),其(qi)于(yu)金(jin)屬直(zhi)(zhi)線(xian)(xian)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)最大(da)的(de)(de)(de)區別就是(shi)(shi)(shi)金(jin)屬直(zhi)(zhi)線(xian)(xian)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)滾(gun)動(dong)摩(mo)擦(ca)(ca),軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)與(yu)圓柱(zhu)軸(zhou)(zhou)(zhou)(zhou)(zhou)之(zhi)間是(shi)(shi)(shi)點接(jie)觸,所(suo)以這(zhe)種(zhong)適(shi)合低(di)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)高(gao)速運(yun)動(dong);而塑料(liao)直(zhi)(zhi)線(xian)(xian)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)滑(hua)動(dong)摩(mo)擦(ca)(ca),軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)與(yu)圓柱(zhu)軸(zhou)(zhou)(zhou)(zhou)(zhou)之(zhi)間是(shi)(shi)(shi)面接(jie)觸,所(suo)以這(zhe)種(zhong)適(shi)合高(gao)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)中低(di)速運(yun)動(dong)。調(diao)心(xin)滾(gun)子軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)有兩列對稱型(xing)球面滾(gun)子,主要(yao)(yao)(yao)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受徑向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he),同(tong)(tong)(tong)時也(ye)(ye)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受任(ren)(ren)一(yi)(yi)(yi)方(fang)向(xiang)(xiang)的(de)(de)(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he),但不(bu)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受純軸(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)(xiang)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)。該類(lei)(lei)(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)外圈滾(gun)道(dao)是(shi)(shi)(shi)球面形,故其(qi)調(diao)心(xin)性(xing)能(neng)(neng)良好,能(neng)(neng)補償同(tong)(tong)(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)度誤差,當(dang)軸(zhou)(zhou)(zhou)(zhou)(zhou)受力彎曲或(huo)安裝不(bu)同(tong)(tong)(tong)心(xin)時軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)仍可(ke)正常(chang)使(shi)(shi)用(yong),調(diao)心(xin)性(xing)隨軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)尺寸系(xi)列不(bu)同(tong)(tong)(tong)而異,一(yi)(yi)(yi)般所(suo)允許的(de)(de)(de)調(diao)心(xin)角度為1~2.5度 ,該類(lei)(lei)(lei)型(xing)軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)(de)(de)負(fu)荷(he)(he)能(neng)(neng)力較(jiao)大(da),除(chu)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受徑向(xiang)(xiang)負(fu)荷(he)(he)外軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)還(huan)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受雙向(xiang)(xiang)作(zuo)(zuo)用(yong)的(de)(de)(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)(xiang)負(fu)荷(he)(he),具有較(jiao)好的(de)(de)(de)抗沖擊能(neng)(neng)力,一(yi)(yi)(yi)般來說調(diao)心(xin)滾(gun)子軸(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)所(suo)允許的(de)(de)(de)工(gong)作(zuo)(zuo)轉(zhuan)速較(jiao)低(di)。適(shi)用(yong)于(yu)重載(zai)(zai)(zai)(zai)(zai)(zai)或(huo)振(zhen)動(dong)載(zai)(zai)(zai)(zai)(zai)(zai)荷(he)(he)下工(gong)作(zuo)(zuo)。
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KUBLER編碼器8.5820.3532.1024翊霈優質推薦
KUBLER編碼器8.5820.3532.1024翊霈優質推薦