KUBLER編碼器8.5820.3532.1024翊霈優質推薦
發(fa)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;
由一個(ge)中(zhong)心有軸(zhou)的光(guang)電碼(ma)盤(pan),其上有環形通、暗(an)的刻線,有光(guang)電發射(she)和接收器件讀取,獲得四組(zu)正弦(xian)波信(xin)號(hao)組(zu)合成A、B、C、D,每個(ge)正弦(xian)波相差90度相位差(相對于一個(ge)周(zhou)波為360度),將C、D信(xin)號(hao)反(fan)向,疊加在A、B兩相上,可增強穩定信(xin)號(hao);另每轉輸出一個(ge)Z相脈沖以代表零位參考位。
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)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(Bearing)是(shi)(shi)(shi)(shi)當代機(ji)械設備中(zhong)一種(zhong)重要零(ling)(ling)部件(jian)。它(ta)的(de)主要功(gong)能(neng)(neng)是(shi)(shi)(shi)(shi)支撐機(ji)械旋(xuan)轉(zhuan)體(ti),降低(di)(di)(di)其(qi)(qi)運(yun)動(dong)(dong)(dong)(dong)(dong)過程中(zhong)的(de)摩(mo)擦(ca)(ca)系數(shu)。滾(gun)(gun)動(dong)(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)之壽(shou)(shou)命(ming)以(yi)轉(zhuan)數(shu)(或(huo)以(yi)一定(ding)(ding)轉(zhuan)速(su)下的(de)工(gong)作(zuo)(zuo)的(de)小(xiao)時數(shu))定(ding)(ding)義:在(zai)(zai)此壽(shou)(shou)命(ming)以(yi)內的(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng),應(ying)在(zai)(zai)其(qi)(qi)任何軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)圈或(huo)滾(gun)(gun)動(dong)(dong)(dong)(dong)(dong)體(ti)上發(fa)生(sheng)初步疲勞損(sun)(sun)(sun)壞(剝落或(huo)缺(que)損(sun)(sun)(sun))。然而無(wu)論在(zai)(zai)實(shi)驗室(shi)試(shi)驗或(huo)在(zai)(zai)實(shi)際使用(yong)(yong)(yong)中(zhong),都可(ke)明顯的(de)看到,在(zai)(zai)同(tong)(tong)樣的(de)工(gong)作(zuo)(zuo)條件(jian)下的(de)外觀相(xiang)同(tong)(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng),實(shi)際壽(shou)(shou)命(ming)大不(bu)相(xiang)同(tong)(tong)。此外還有數(shu)種(zhong)不(bu)同(tong)(tong)定(ding)(ding)義的(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)“壽(shou)(shou)命(ming)”,其(qi)(qi)中(zhong)之一即所(suo)謂的(de)“工(gong)作(zuo)(zuo)壽(shou)(shou)命(ming)”,它(ta)表示某(mou)一軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)在(zai)(zai)損(sun)(sun)(sun)壞之前可(ke)達到的(de)實(shi)際壽(shou)(shou)命(ming)是(shi)(shi)(shi)(shi)由(you)(you)磨損(sun)(sun)(sun)、損(sun)(sun)(sun)壞通常并非由(you)(you)疲勞所(suo)致,而是(shi)(shi)(shi)(shi)由(you)(you)磨損(sun)(sun)(sun)、腐(fu)蝕、密封損(sun)(sun)(sun)壞等原因造成。深(shen)溝球(qiu)(qiu)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)(shi)具(ju)代表性的(de)滾(gun)(gun)動(dong)(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)。與尺寸(cun)相(xiang)同(tong)(tong)的(de)其(qi)(qi)它(ta)類(lei)型(xing)(xing)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)相(xiang)比,該(gai)類(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)摩(mo)擦(ca)(ca)系數(shu)小(xiao),極(ji)限(xian)轉(zhuan)速(su)高,結(jie)構(gou)簡單,制造成本(ben)低(di)(di)(di),精度高,無(wu)需經(jing)常維護,而且尺寸(cun)范圍大、形式多,是(shi)(shi)(shi)(shi)應(ying)用(yong)(yong)(yong)*的(de)一類(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)。它(ta)主要承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)徑(jing)向(xiang)載(zai)荷(he)(he)(he),也(ye)可(ke)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)一定(ding)(ding)的(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)載(zai)荷(he)(he)(he)。當其(qi)(qi)僅(jin)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)徑(jing)向(xiang)載(zai)荷(he)(he)(he)時,接觸角(jiao)為(wei)零(ling)(ling)。金(jin)屬(shu)直線軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)(shi)一種(zhong)以(yi)低(di)(di)(di)成本(ben)生(sheng)產的(de)直線運(yun)動(dong)(dong)(dong)(dong)(dong)系統,用(yong)(yong)(yong)于(yu)無(wu)限(xian)行程與圓柱軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)配合(he)使用(yong)(yong)(yong)。由(you)(you)于(yu)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)載(zai)球(qiu)(qiu)與軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)呈點(dian)接觸,故使用(yong)(yong)(yong)載(zai)荷(he)(he)(he)小(xiao)。鋼球(qiu)(qiu)以(yi)極(ji)小(xiao)的(de)摩(mo)擦(ca)(ca)阻力(li)旋(xuan)轉(zhuan),從(cong)而能(neng)(neng)獲得高精度的(de)平穩運(yun)動(dong)(dong)(dong)(dong)(dong)。塑料(liao)直線軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)(shi)一種(zhong)自(zi)潤(run)滑特(te)性的(de)直線運(yun)動(dong)(dong)(dong)(dong)(dong)系統,其(qi)(qi)于(yu)金(jin)屬(shu)直線軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)最(zui)大的(de)區別就是(shi)(shi)(shi)(shi)金(jin)屬(shu)直線軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)(shi)滾(gun)(gun)動(dong)(dong)(dong)(dong)(dong)摩(mo)擦(ca)(ca),軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)與圓柱軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)之間是(shi)(shi)(shi)(shi)點(dian)接觸,所(suo)以(yi)這種(zhong)適(shi)合(he)低(di)(di)(di)載(zai)荷(he)(he)(he)高速(su)運(yun)動(dong)(dong)(dong)(dong)(dong);而塑料(liao)直線軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)是(shi)(shi)(shi)(shi)滑動(dong)(dong)(dong)(dong)(dong)摩(mo)擦(ca)(ca),軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)與圓柱軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)之間是(shi)(shi)(shi)(shi)面(mian)接觸,所(suo)以(yi)這種(zhong)適(shi)合(he)高載(zai)荷(he)(he)(he)中(zhong)低(di)(di)(di)速(su)運(yun)動(dong)(dong)(dong)(dong)(dong)。調(diao)心(xin)滾(gun)(gun)子(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)有兩列對(dui)稱型(xing)(xing)球(qiu)(qiu)面(mian)滾(gun)(gun)子(zi),主要承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)徑(jing)向(xiang)載(zai)荷(he)(he)(he),同(tong)(tong)時也(ye)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)任一方向(xiang)的(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)載(zai)荷(he)(he)(he),但不(bu)能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)純軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)載(zai)荷(he)(he)(he)。該(gai)類(lei)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)外圈滾(gun)(gun)道是(shi)(shi)(shi)(shi)球(qiu)(qiu)面(mian)形,故其(qi)(qi)調(diao)心(xin)性能(neng)(neng)良好,能(neng)(neng)補償同(tong)(tong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)度誤差,當軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)受(shou)力(li)彎(wan)曲(qu)或(huo)安裝不(bu)同(tong)(tong)心(xin)時軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)仍可(ke)正常使用(yong)(yong)(yong),調(diao)心(xin)性隨軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)尺寸(cun)系列不(bu)同(tong)(tong)而異,一般所(suo)允許(xu)的(de)調(diao)心(xin)角(jiao)度為(wei)1~2.5度 ,該(gai)類(lei)型(xing)(xing)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)的(de)負(fu)荷(he)(he)(he)能(neng)(neng)力(li)較(jiao)大,除能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)徑(jing)向(xiang)負(fu)荷(he)(he)(he)外軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)還能(neng)(neng)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)受(shou)雙向(xiang)作(zuo)(zuo)用(yong)(yong)(yong)的(de)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)向(xiang)負(fu)荷(he)(he)(he),具(ju)有較(jiao)好的(de)抗沖擊能(neng)(neng)力(li),一般來說調(diao)心(xin)滾(gun)(gun)子(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)(cheng)所(suo)允許(xu)的(de)工(gong)作(zuo)(zuo)轉(zhuan)速(su)較(jiao)低(di)(di)(di)。適(shi)用(yong)(yong)(yong)于(yu)重載(zai)或(huo)振(zhen)動(dong)(dong)(dong)(dong)(dong)載(zai)荷(he)(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