
輪胎聯軸器采(cai)用輪胎體狀橡膠元(yuan)件,與兩個半聯(lian)經過(guo)螺栓(shuan)聯(lian)接,實現扭矩傳遞和位移補償(chang)。橡膠輪胎聯(lian)軸器具有(you)(you)較高的彈(dan)性(xing)性(xing)能,扭轉剛(gang)度小,減震能力強,軸向補償(chang)能力較大(da),有(you)(you)良好的阻尼性(xing)能。
彈性(xing)輪(lun)(lun)胎(tai)聯(lian)軸(zhou)器(qi)(qi)輪(lun)(lun)胎(tai)體是輪(lun)(lun)胎(tai)聯(lian)軸(zhou)器(qi)(qi)必要(yao)的(de)(de)備件之(zhi)(zhi)一,相應(ying)的(de)(de)分(fen)為UL、LA、LB輪(lun)(lun)胎(tai)體。輪(lun)(lun)胎(tai)式(shi)聯(lian)軸(zhou)器(qi)(qi)分(fen)為凸(tu)(tu)(tu)型和凹型兩(liang)大類,凸(tu)(tu)(tu)型又分(fen)為帶骨架整(zheng)體式(shi)、無骨整(zheng)體式(shi)和徑向切口式(shi)三種。輪(lun)(lun)胎(tai)環內側用(yong)硫化方法與鋼質骨架粘接成一體,骨架上的(de)(de)螺栓孔處焊有(you)(you)螺母(mu)。裝(zhuang)配時用(yong)螺栓與兩(liang)半聯(lian)軸(zhou)器(qi)(qi)的(de)(de)凸(tu)(tu)(tu)緣連接,依靠(kao)擰緊螺栓使輪(lun)(lun)胎(tai)與凸(tu)(tu)(tu)緣端面之(zhi)(zhi)間產生的(de)(de)摩擦力(li)來(lai)傳遞轉矩,輪(lun)(lun)胎(tai)環工作時發生扭轉剪切變形,故(gu)輪(lun)(lun)胎(tai)聯(lian)軸(zhou)器(qi)(qi)具(ju)有(you)(you)很高的(de)(de)彈性(xing),補償兩(liang)軸(zhou)相對位移(yi)的(de)(de)能(neng)力(li)較(jiao)(jiao)大,并有(you)(you)良好的(de)(de)阻尼,而且結構(gou)簡單、不(bu)需潤滑、裝(zhuang)拆(chai)和維護都比較(jiao)(jiao)方便。
輪胎式聯軸器缺點是承(cheng)載能(neng)力(li)不高、外形尺寸較大(da),隨著兩軸(zhou)(zhou)相對扭轉角的(de)增(zeng)加(jia)使(shi)(shi)輪(lun)胎外形扭歪,軸(zhou)(zhou)向(xiang)(xiang)(xiang)尺寸略有減小,將在(zai)(zai)兩軸(zhou)(zhou)上產生(sheng)較大(da)的(de)附(fu)加(jia)軸(zhou)(zhou)向(xiang)(xiang)(xiang)力(li),使(shi)(shi)軸(zhou)(zhou)承(cheng)負載加(jia)大(da)而(er)降低(di)壽命(ming)。輪(lun)胎聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)高速運轉時,輪(lun)胎外緣由于離心力(li)的(de)作用(yong)而(er)向(xiang)(xiang)(xiang)外擴張,將進一步(bu)增(zeng)大(da)附(fu)加(jia)軸(zhou)(zhou)向(xiang)(xiang)(xiang)力(li)。為此,在(zai)(zai)安裝聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)時應采取措施,使(shi)(shi)輪(lun)胎中的(de)應力(li)方(fang)向(xiang)(xiang)(xiang)與(yu)工作時產生(sheng)的(de)應力(li)方(fang)向(xiang)(xiang)(xiang)相反,以(yi)抵消部分附(fu)加(jia)軸(zhou)(zhou)向(xiang)(xiang)(xiang)力(li),達到改善聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)和(he)兩軸(zhou)(zhou)承(cheng)的(de)工和(he)條件。
輪胎(tai)式聯軸器由于種(zhong)(zhong)種(zhong)(zhong)原(yuan)因使其(qi)質心(xin)或慣性主軸與其(qi)加轉軸線不(bu)重合(he),在運(yun)轉時(shi)將產生不(bu)平衡(heng)離心(xin)慣性力、離心(xin)慣性力偶(ou)和動(dong)撓度(振型)的現(xian)象(xiang),稱為轉子的不(bu)平衡(heng)現(xian)象(xiang),這種(zhong)(zhong)不(bu)平衡(heng)現(xian)象(xiang)必(bi)然(ran)引起軸系的振動(dong),從(cong)而影響機器的正(zheng)常工作和使用壽(shou)命,因而對其(qi)必(bi)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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