
輪胎聯軸器采用輪胎體狀橡(xiang)膠元件,與兩個(ge)半聯經過(guo)螺栓聯接(jie),實現扭矩傳(chuan)遞和位移補(bu)償。橡(xiang)膠輪胎聯軸器具有較高的彈性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng),扭轉(zhuan)剛度(du)小,減震能(neng)力(li)強(qiang),軸向補(bu)償能(neng)力(li)較大,有良好的阻尼性(xing)(xing)(xing)能(neng)。
彈(dan)性(xing)輪(lun)(lun)(lun)胎(tai)(tai)聯(lian)軸(zhou)器(qi)(qi)輪(lun)(lun)(lun)胎(tai)(tai)體是輪(lun)(lun)(lun)胎(tai)(tai)聯(lian)軸(zhou)器(qi)(qi)必要的(de)(de)備(bei)件(jian)之一,相應的(de)(de)分(fen)為(wei)UL、LA、LB輪(lun)(lun)(lun)胎(tai)(tai)體。輪(lun)(lun)(lun)胎(tai)(tai)式(shi)聯(lian)軸(zhou)器(qi)(qi)分(fen)為(wei)凸(tu)(tu)型和凹型兩大類,凸(tu)(tu)型又分(fen)為(wei)帶(dai)骨(gu)架整(zheng)體式(shi)、無骨(gu)整(zheng)體式(shi)和徑向切(qie)口式(shi)三種。輪(lun)(lun)(lun)胎(tai)(tai)環內側(ce)用硫化方(fang)法(fa)與鋼質骨(gu)架粘接(jie)成一體,骨(gu)架上的(de)(de)螺栓孔處(chu)焊有(you)螺母。裝(zhuang)配(pei)時用螺栓與兩半聯(lian)軸(zhou)器(qi)(qi)的(de)(de)凸(tu)(tu)緣(yuan)連(lian)接(jie),依靠擰緊螺栓使輪(lun)(lun)(lun)胎(tai)(tai)與凸(tu)(tu)緣(yuan)端面(mian)之間產生的(de)(de)摩擦力來傳遞轉(zhuan)矩(ju),輪(lun)(lun)(lun)胎(tai)(tai)環工作時發生扭轉(zhuan)剪(jian)切(qie)變形,故輪(lun)(lun)(lun)胎(tai)(tai)聯(lian)軸(zhou)器(qi)(qi)具有(you)很高的(de)(de)彈(dan)性(xing),補(bu)償兩軸(zhou)相對位(wei)移(yi)的(de)(de)能(neng)力較(jiao)大,并有(you)良好(hao)的(de)(de)阻尼,而(er)且結構簡單、不需潤滑(hua)、裝(zhuang)拆(chai)和維護都比較(jiao)方(fang)便(bian)。
輪胎式聯軸器缺點是承載(zai)能(neng)力不高(gao)、外(wai)形(xing)尺寸較(jiao)大(da),隨著兩軸(zhou)相對(dui)扭轉角的(de)增加使輪胎外(wai)形(xing)扭歪,軸(zhou)向(xiang)(xiang)尺寸略有減(jian)小,將在兩軸(zhou)上產生(sheng)較(jiao)大(da)的(de)附加軸(zhou)向(xiang)(xiang)力,使軸(zhou)承負載(zai)加大(da)而降低壽命。輪胎聯(lian)軸(zhou)器高(gao)速運(yun)轉時(shi)(shi),輪胎外(wai)緣由于離心力的(de)作用而向(xiang)(xiang)外(wai)擴張,將進(jin)一(yi)步增大(da)附加軸(zhou)向(xiang)(xiang)力。為(wei)此(ci),在安(an)裝聯(lian)軸(zhou)器時(shi)(shi)應(ying)采取措施,使輪胎中的(de)應(ying)力方(fang)向(xiang)(xiang)與(yu)工(gong)(gong)作時(shi)(shi)產生(sheng)的(de)應(ying)力方(fang)向(xiang)(xiang)相反,以(yi)抵消部分附加軸(zhou)向(xiang)(xiang)力,達到改善(shan)聯(lian)軸(zhou)器和(he)兩軸(zhou)承的(de)工(gong)(gong)和(he)條件。
輪胎(tai)式聯軸(zhou)(zhou)器(qi)由于(yu)種(zhong)種(zhong)原因(yin)使(shi)其質心或(huo)慣性主軸(zhou)(zhou)與其加轉軸(zhou)(zhou)線不(bu)重合,在運(yun)轉時將(jiang)產生不(bu)平(ping)衡(heng)離(li)心慣性力、離(li)心慣性力偶和動(dong)撓度(振型)的(de)(de)現(xian)象(xiang),稱為轉子的(de)(de)不(bu)平(ping)衡(heng)現(xian)象(xiang),這(zhe)種(zhong)不(bu)平(ping)衡(heng)現(xian)象(xiang)必然(ran)引起軸(zhou)(zhou)系(xi)的(de)(de)振動(dong),從而(er)影響機器(qi)的(de)(de)正(zheng)常工(gong)作和使(shi)用(yong)壽命,因(yin)而(er)對(dui)其必須加以(yi)重視(shi)。
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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