
輪胎聯軸器采用輪(lun)胎(tai)體狀橡膠元(yuan)件(jian),與兩個半聯經過螺栓(shuan)聯接,實現(xian)扭(niu)矩傳遞和位移補償(chang)(chang)。橡膠輪(lun)胎(tai)聯軸器(qi)具有(you)較高的彈(dan)性(xing)(xing)性(xing)(xing)能(neng),扭(niu)轉剛(gang)度小,減震(zhen)能(neng)力(li)強,軸向補償(chang)(chang)能(neng)力(li)較大(da),有(you)良(liang)好的阻尼(ni)性(xing)(xing)能(neng)。
彈性(xing)輪(lun)(lun)胎(tai)(tai)聯(lian)(lian)軸器輪(lun)(lun)胎(tai)(tai)體(ti)是輪(lun)(lun)胎(tai)(tai)聯(lian)(lian)軸器必(bi)要的(de)(de)(de)(de)(de)備件之一,相(xiang)(xiang)應的(de)(de)(de)(de)(de)分為UL、LA、LB輪(lun)(lun)胎(tai)(tai)體(ti)。輪(lun)(lun)胎(tai)(tai)式(shi)聯(lian)(lian)軸器分為凸(tu)型(xing)和凹(ao)型(xing)兩大類,凸(tu)型(xing)又(you)分為帶骨架整體(ti)式(shi)、無骨整體(ti)式(shi)和徑向切口式(shi)三種。輪(lun)(lun)胎(tai)(tai)環內側用硫化方法與(yu)鋼質骨架粘接(jie)成一體(ti),骨架上的(de)(de)(de)(de)(de)螺(luo)栓孔(kong)處焊(han)有(you)螺(luo)母。裝配時用螺(luo)栓與(yu)兩半聯(lian)(lian)軸器的(de)(de)(de)(de)(de)凸(tu)緣連接(jie),依靠(kao)擰緊螺(luo)栓使輪(lun)(lun)胎(tai)(tai)與(yu)凸(tu)緣端面之間產(chan)生的(de)(de)(de)(de)(de)摩擦力(li)來(lai)傳遞轉矩,輪(lun)(lun)胎(tai)(tai)環工(gong)作時發生扭轉剪切變形,故輪(lun)(lun)胎(tai)(tai)聯(lian)(lian)軸器具有(you)很高(gao)的(de)(de)(de)(de)(de)彈性(xing),補償兩軸相(xiang)(xiang)對位移(yi)的(de)(de)(de)(de)(de)能(neng)力(li)較大,并有(you)良好的(de)(de)(de)(de)(de)阻尼,而且結構簡單、不需潤滑(hua)、裝拆和維護都(dou)比較方便(bian)。
輪胎式聯軸器缺點是承(cheng)載(zai)能力(li)(li)不高、外(wai)形(xing)尺(chi)寸較大(da),隨(sui)著兩(liang)軸(zhou)(zhou)相對扭轉角(jiao)的增(zeng)加(jia)使(shi)(shi)輪胎(tai)外(wai)形(xing)扭歪,軸(zhou)(zhou)向尺(chi)寸略有減小(xiao),將(jiang)在兩(liang)軸(zhou)(zhou)上產生(sheng)較大(da)的附(fu)加(jia)軸(zhou)(zhou)向力(li)(li),使(shi)(shi)軸(zhou)(zhou)承(cheng)負載(zai)加(jia)大(da)而降低壽命。輪胎(tai)聯(lian)(lian)軸(zhou)(zhou)器高速運轉時(shi)(shi),輪胎(tai)外(wai)緣(yuan)由于離心(xin)力(li)(li)的作用而向外(wai)擴張,將(jiang)進(jin)一步增(zeng)大(da)附(fu)加(jia)軸(zhou)(zhou)向力(li)(li)。為此,在安裝聯(lian)(lian)軸(zhou)(zhou)器時(shi)(shi)應(ying)采取措施,使(shi)(shi)輪胎(tai)中的應(ying)力(li)(li)方向與工作時(shi)(shi)產生(sheng)的應(ying)力(li)(li)方向相反(fan),以抵消(xiao)部分附(fu)加(jia)軸(zhou)(zhou)向力(li)(li),達到改善(shan)聯(lian)(lian)軸(zhou)(zhou)器和(he)兩(liang)軸(zhou)(zhou)承(cheng)的工和(he)條件(jian)。
輪胎式聯軸器由于種(zhong)(zhong)種(zhong)(zhong)原因使其質心(xin)(xin)或慣(guan)性(xing)(xing)主(zhu)軸與其加轉(zhuan)軸線不重合,在運(yun)轉(zhuan)時將產(chan)生不平衡離心(xin)(xin)慣(guan)性(xing)(xing)力、離心(xin)(xin)慣(guan)性(xing)(xing)力偶和動(dong)撓(nao)度(振型)的現(xian)象(xiang),稱為轉(zhuan)子的不平衡現(xian)象(xiang),這(zhe)種(zhong)(zhong)不平衡現(xian)象(xiang)必然引起軸系的振動(dong),從而影響機器的正(zheng)常工作和使用壽(shou)命,因而對其必須加以重視。
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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