
輪胎聯軸器采用輪胎(tai)體狀橡膠(jiao)元件,與兩個半聯(lian)(lian)經過螺栓聯(lian)(lian)接(jie),實現(xian)扭矩傳(chuan)遞和位移(yi)補(bu)償(chang)。橡膠(jiao)輪胎(tai)聯(lian)(lian)軸器(qi)具有(you)較高的(de)彈性(xing)性(xing)能(neng)(neng),扭轉(zhuan)剛度小,減震能(neng)(neng)力強,軸向(xiang)補(bu)償(chang)能(neng)(neng)力較大,有(you)良好的(de)阻尼性(xing)能(neng)(neng)。
彈(dan)性輪(lun)(lun)胎(tai)(tai)(tai)(tai)聯(lian)軸(zhou)器(qi)輪(lun)(lun)胎(tai)(tai)(tai)(tai)體(ti)是輪(lun)(lun)胎(tai)(tai)(tai)(tai)聯(lian)軸(zhou)器(qi)必要(yao)的(de)(de)備件之(zhi)一,相應(ying)的(de)(de)分為UL、LA、LB輪(lun)(lun)胎(tai)(tai)(tai)(tai)體(ti)。輪(lun)(lun)胎(tai)(tai)(tai)(tai)式聯(lian)軸(zhou)器(qi)分為凸型(xing)(xing)和(he)凹(ao)型(xing)(xing)兩大類,凸型(xing)(xing)又分為帶(dai)骨(gu)(gu)(gu)架(jia)整體(ti)式、無骨(gu)(gu)(gu)整體(ti)式和(he)徑(jing)向(xiang)切(qie)口(kou)式三(san)種。輪(lun)(lun)胎(tai)(tai)(tai)(tai)環內側用硫化方法與鋼(gang)質骨(gu)(gu)(gu)架(jia)粘(zhan)接成一體(ti),骨(gu)(gu)(gu)架(jia)上的(de)(de)螺栓孔處焊有螺母(mu)。裝配時用螺栓與兩半聯(lian)軸(zhou)器(qi)的(de)(de)凸緣(yuan)(yuan)連接,依(yi)靠擰緊螺栓使輪(lun)(lun)胎(tai)(tai)(tai)(tai)與凸緣(yuan)(yuan)端面之(zhi)間產生(sheng)(sheng)的(de)(de)摩擦力來傳(chuan)遞轉(zhuan)矩(ju),輪(lun)(lun)胎(tai)(tai)(tai)(tai)環工作(zuo)時發生(sheng)(sheng)扭轉(zhuan)剪切(qie)變形,故輪(lun)(lun)胎(tai)(tai)(tai)(tai)聯(lian)軸(zhou)器(qi)具有很(hen)高的(de)(de)彈(dan)性,補償兩軸(zhou)相對(dui)位移的(de)(de)能(neng)力較(jiao)大,并有良好(hao)的(de)(de)阻尼,而且結(jie)構簡(jian)單(dan)、不需潤滑、裝拆和(he)維(wei)護都比較(jiao)方便(bian)。
輪胎式聯軸器缺點是(shi)承(cheng)載能力(li)不高、外形尺寸(cun)較大,隨著兩軸相對扭轉角的增加使(shi)(shi)輪(lun)胎(tai)(tai)外形扭歪,軸向(xiang)(xiang)(xiang)(xiang)尺寸(cun)略(lve)有減小(xiao),將在(zai)兩軸上(shang)產(chan)生較大的附加軸向(xiang)(xiang)(xiang)(xiang)力(li),使(shi)(shi)軸承(cheng)負載加大而(er)降低壽命(ming)。輪(lun)胎(tai)(tai)聯軸器(qi)(qi)高速運轉時,輪(lun)胎(tai)(tai)外緣由于離(li)心力(li)的作用而(er)向(xiang)(xiang)(xiang)(xiang)外擴張,將進一步增大附加軸向(xiang)(xiang)(xiang)(xiang)力(li)。為(wei)此(ci),在(zai)安裝聯軸器(qi)(qi)時應(ying)采取措施(shi),使(shi)(shi)輪(lun)胎(tai)(tai)中的應(ying)力(li)方(fang)向(xiang)(xiang)(xiang)(xiang)與工(gong)作時產(chan)生的應(ying)力(li)方(fang)向(xiang)(xiang)(xiang)(xiang)相反,以抵消部分附加軸向(xiang)(xiang)(xiang)(xiang)力(li),達(da)到改善聯軸器(qi)(qi)和兩軸承(cheng)的工(gong)和條件(jian)。
輪胎式聯軸(zhou)器由于種種原因(yin)使其質心或慣(guan)性(xing)主(zhu)軸(zhou)與其加轉(zhuan)軸(zhou)線(xian)不(bu)(bu)(bu)重合,在運(yun)轉(zhuan)時將產(chan)生(sheng)不(bu)(bu)(bu)平(ping)衡(heng)離心慣(guan)性(xing)力、離心慣(guan)性(xing)力偶和動撓(nao)度(振(zhen)型)的(de)(de)現(xian)象(xiang),稱為轉(zhuan)子的(de)(de)不(bu)(bu)(bu)平(ping)衡(heng)現(xian)象(xiang),這(zhe)種不(bu)(bu)(bu)平(ping)衡(heng)現(xian)象(xiang)必(bi)然引(yin)起軸(zhou)系的(de)(de)振(zhen)動,從(cong)而(er)影(ying)響機器的(de)(de)正常(chang)工作(zuo)和使用壽命(ming),因(yin)而(er)對(dui)其必(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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