
輪胎聯軸器采(cai)用輪胎體狀橡膠元件,與兩個半聯經過螺栓聯接,實(shi)現扭(niu)矩傳遞和(he)位移(yi)補(bu)償。橡膠輪胎聯軸(zhou)器(qi)具有較高的(de)彈性(xing)性(xing)能(neng),扭(niu)轉剛度(du)小,減震能(neng)力強,軸(zhou)向補(bu)償能(neng)力較大,有良好的(de)阻尼性(xing)能(neng)。
彈(dan)性輪(lun)(lun)胎(tai)聯(lian)軸器輪(lun)(lun)胎(tai)體(ti)是輪(lun)(lun)胎(tai)聯(lian)軸器必要的備(bei)件之(zhi)一,相(xiang)應的分(fen)為UL、LA、LB輪(lun)(lun)胎(tai)體(ti)。輪(lun)(lun)胎(tai)式(shi)聯(lian)軸器分(fen)為凸型和(he)凹型兩(liang)大(da)類,凸型又分(fen)為帶(dai)骨(gu)(gu)架整(zheng)(zheng)體(ti)式(shi)、無骨(gu)(gu)整(zheng)(zheng)體(ti)式(shi)和(he)徑向切口(kou)式(shi)三種。輪(lun)(lun)胎(tai)環(huan)內側(ce)用硫化(hua)方(fang)法與鋼(gang)質骨(gu)(gu)架粘接成(cheng)一體(ti),骨(gu)(gu)架上的螺(luo)栓(shuan)(shuan)孔(kong)處(chu)焊有(you)螺(luo)母。裝配時(shi)用螺(luo)栓(shuan)(shuan)與兩(liang)半聯(lian)軸器的凸緣(yuan)連(lian)接,依靠擰(ning)緊螺(luo)栓(shuan)(shuan)使輪(lun)(lun)胎(tai)與凸緣(yuan)端面之(zhi)間產生的摩擦力來傳遞(di)轉矩,輪(lun)(lun)胎(tai)環(huan)工(gong)作時(shi)發(fa)生扭轉剪(jian)切變形(xing),故輪(lun)(lun)胎(tai)聯(lian)軸器具有(you)很(hen)高的彈(dan)性,補償兩(liang)軸相(xiang)對位移的能(neng)力較(jiao)大(da),并有(you)良好(hao)的阻尼,而且結構(gou)簡(jian)單、不需潤滑、裝拆(chai)和(he)維護都比較(jiao)方(fang)便。
輪胎式聯軸器缺點是承(cheng)(cheng)(cheng)載能力(li)(li)(li)不高、外形(xing)尺寸較(jiao)大,隨(sui)著(zhu)兩軸(zhou)相對扭(niu)轉角的(de)增加(jia)使輪(lun)胎(tai)(tai)外形(xing)扭(niu)歪,軸(zhou)向尺寸略有(you)減小,將在(zai)兩軸(zhou)上產(chan)生(sheng)較(jiao)大的(de)附加(jia)軸(zhou)向力(li)(li)(li),使軸(zhou)承(cheng)(cheng)(cheng)負載加(jia)大而降低壽命。輪(lun)胎(tai)(tai)聯(lian)軸(zhou)器(qi)(qi)高速運轉時(shi),輪(lun)胎(tai)(tai)外緣(yuan)由于離心力(li)(li)(li)的(de)作(zuo)用而向外擴張,將進一步增大附加(jia)軸(zhou)向力(li)(li)(li)。為此,在(zai)安裝聯(lian)軸(zhou)器(qi)(qi)時(shi)應(ying)(ying)采(cai)取措施,使輪(lun)胎(tai)(tai)中的(de)應(ying)(ying)力(li)(li)(li)方(fang)向與工作(zuo)時(shi)產(chan)生(sheng)的(de)應(ying)(ying)力(li)(li)(li)方(fang)向相反(fan),以抵消(xiao)部分(fen)附加(jia)軸(zhou)向力(li)(li)(li),達到(dao)改(gai)善聯(lian)軸(zhou)器(qi)(qi)和兩軸(zhou)承(cheng)(cheng)(cheng)的(de)工和條件(jian)。
輪胎式聯軸器由(you)于種(zhong)種(zhong)原因使(shi)其質(zhi)心(xin)或(huo)慣(guan)性(xing)主軸與其加(jia)轉軸線不(bu)重合,在(zai)運(yun)轉時將產生(sheng)不(bu)平(ping)衡(heng)離心(xin)慣(guan)性(xing)力(li)、離心(xin)慣(guan)性(xing)力(li)偶和動撓度(振型)的現象,稱為轉子的不(bu)平(ping)衡(heng)現象,這(zhe)種(zhong)不(bu)平(ping)衡(heng)現象必然引起軸系的振動,從而(er)影響(xiang)機器的正常工作和使(shi)用壽命,因而(er)對(dui)其必須加(jia)以重視。
The tyre coupling adopts tyre body-shaped rubber elements, which are connected with two semi-couplings through bolts to realize torque transmission and displacement compensation. Tyre coupling has high elastic performance, small torsional rigidity, strong damping capacity, large axial compensation capacity, and good damping performance.
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