
輪胎聯軸器采用輪胎體狀橡(xiang)膠元(yuan)件,與兩個(ge)半(ban)聯經(jing)過螺栓聯接,實現扭(niu)矩傳遞和位(wei)移補(bu)(bu)償。橡(xiang)膠輪胎聯軸器具(ju)有較高的彈(dan)性(xing)(xing)性(xing)(xing)能,扭(niu)轉剛度小,減震能力強,軸向補(bu)(bu)償能力較大,有良好的阻尼性(xing)(xing)能。
彈(dan)性(xing)輪(lun)胎(tai)(tai)(tai)(tai)聯軸器(qi)(qi)輪(lun)胎(tai)(tai)(tai)(tai)體是(shi)輪(lun)胎(tai)(tai)(tai)(tai)聯軸器(qi)(qi)必要的(de)備件之(zhi)一(yi),相應的(de)分為UL、LA、LB輪(lun)胎(tai)(tai)(tai)(tai)體。輪(lun)胎(tai)(tai)(tai)(tai)式(shi)聯軸器(qi)(qi)分為凸(tu)型(xing)和(he)凹(ao)型(xing)兩大(da)類,凸(tu)型(xing)又分為帶骨(gu)架整(zheng)體式(shi)、無骨(gu)整(zheng)體式(shi)和(he)徑向切口(kou)式(shi)三種。輪(lun)胎(tai)(tai)(tai)(tai)環內(nei)側用(yong)硫(liu)化(hua)方法與(yu)鋼質骨(gu)架粘接成(cheng)一(yi)體,骨(gu)架上(shang)的(de)螺栓(shuan)孔處(chu)焊有(you)螺母。裝(zhuang)配時(shi)(shi)用(yong)螺栓(shuan)與(yu)兩半(ban)聯軸器(qi)(qi)的(de)凸(tu)緣(yuan)連接,依靠擰緊螺栓(shuan)使輪(lun)胎(tai)(tai)(tai)(tai)與(yu)凸(tu)緣(yuan)端(duan)面之(zhi)間產生的(de)摩(mo)擦力(li)來傳(chuan)遞轉矩,輪(lun)胎(tai)(tai)(tai)(tai)環工作時(shi)(shi)發生扭轉剪切變形,故輪(lun)胎(tai)(tai)(tai)(tai)聯軸器(qi)(qi)具有(you)很高(gao)的(de)彈(dan)性(xing),補償兩軸相對(dui)位移的(de)能力(li)較大(da),并有(you)良(liang)好的(de)阻尼(ni),而且結(jie)構簡(jian)單、不需潤滑(hua)、裝(zhuang)拆(chai)和(he)維護都比較方便(bian)。
輪胎式聯軸器缺點(dian)是(shi)承載(zai)能力(li)(li)不高(gao)、外(wai)形尺寸較大,隨著兩(liang)(liang)軸(zhou)相(xiang)(xiang)對扭轉(zhuan)角的增加使(shi)輪(lun)胎外(wai)形扭歪(wai),軸(zhou)向(xiang)(xiang)尺寸略有減小,將(jiang)在兩(liang)(liang)軸(zhou)上產(chan)生(sheng)較大的附加軸(zhou)向(xiang)(xiang)力(li)(li),使(shi)軸(zhou)承負載(zai)加大而(er)(er)降低壽(shou)命。輪(lun)胎聯(lian)軸(zhou)器(qi)高(gao)速運轉(zhuan)時(shi),輪(lun)胎外(wai)緣由(you)于離心力(li)(li)的作用而(er)(er)向(xiang)(xiang)外(wai)擴(kuo)張(zhang),將(jiang)進一步增大附加軸(zhou)向(xiang)(xiang)力(li)(li)。為此,在安裝聯(lian)軸(zhou)器(qi)時(shi)應采取措施(shi),使(shi)輪(lun)胎中(zhong)的應力(li)(li)方(fang)向(xiang)(xiang)與工作時(shi)產(chan)生(sheng)的應力(li)(li)方(fang)向(xiang)(xiang)相(xiang)(xiang)反(fan),以抵消部分附加軸(zhou)向(xiang)(xiang)力(li)(li),達到改善聯(lian)軸(zhou)器(qi)和(he)兩(liang)(liang)軸(zhou)承的工和(he)條(tiao)件。
輪胎(tai)式聯軸(zhou)(zhou)器(qi)由于種(zhong)(zhong)種(zhong)(zhong)原因使(shi)其質心(xin)(xin)或慣性(xing)主軸(zhou)(zhou)與其加轉軸(zhou)(zhou)線不重合,在運轉時將(jiang)產生(sheng)不平(ping)衡離心(xin)(xin)慣性(xing)力、離心(xin)(xin)慣性(xing)力偶和動(dong)撓度(振(zhen)型)的(de)(de)現象,稱為轉子(zi)的(de)(de)不平(ping)衡現象,這種(zhong)(zhong)不平(ping)衡現象必(bi)然(ran)引起軸(zhou)(zhou)系的(de)(de)振(zhen)動(dong),從而影(ying)響(xiang)機(ji)器(qi)的(de)(de)正(zheng)常工(gong)作和使(shi)用(yong)壽命,因而對其必(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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