
輪胎聯軸器采用輪胎體狀(zhuang)橡(xiang)膠元件,與(yu)兩個(ge)半聯(lian)經過(guo)螺栓聯(lian)接,實現扭(niu)矩傳遞(di)和(he)位移補(bu)償(chang)。橡(xiang)膠輪胎聯(lian)軸器具有(you)較高的彈性(xing)性(xing)能(neng),扭(niu)轉剛度小,減震能(neng)力強,軸向(xiang)補(bu)償(chang)能(neng)力較大(da),有(you)良(liang)好的阻尼性(xing)能(neng)。
彈性輪(lun)(lun)胎(tai)(tai)(tai)聯(lian)軸器(qi)(qi)輪(lun)(lun)胎(tai)(tai)(tai)體(ti)是輪(lun)(lun)胎(tai)(tai)(tai)聯(lian)軸器(qi)(qi)必要(yao)的(de)(de)備件之一,相(xiang)應的(de)(de)分為(wei)(wei)UL、LA、LB輪(lun)(lun)胎(tai)(tai)(tai)體(ti)。輪(lun)(lun)胎(tai)(tai)(tai)式(shi)(shi)聯(lian)軸器(qi)(qi)分為(wei)(wei)凸(tu)型(xing)和凹型(xing)兩(liang)(liang)(liang)大類,凸(tu)型(xing)又分為(wei)(wei)帶骨(gu)架(jia)(jia)整(zheng)體(ti)式(shi)(shi)、無骨(gu)整(zheng)體(ti)式(shi)(shi)和徑向切(qie)口(kou)式(shi)(shi)三種。輪(lun)(lun)胎(tai)(tai)(tai)環(huan)內側用硫化方(fang)法與(yu)鋼質骨(gu)架(jia)(jia)粘接成一體(ti),骨(gu)架(jia)(jia)上的(de)(de)螺栓(shuan)孔處(chu)焊有(you)螺母。裝配(pei)時用螺栓(shuan)與(yu)兩(liang)(liang)(liang)半(ban)聯(lian)軸器(qi)(qi)的(de)(de)凸(tu)緣(yuan)(yuan)連接,依靠(kao)擰緊(jin)螺栓(shuan)使輪(lun)(lun)胎(tai)(tai)(tai)與(yu)凸(tu)緣(yuan)(yuan)端面之間產生的(de)(de)摩(mo)擦(ca)力來(lai)傳遞轉矩,輪(lun)(lun)胎(tai)(tai)(tai)環(huan)工(gong)作時發生扭(niu)轉剪切(qie)變形(xing),故輪(lun)(lun)胎(tai)(tai)(tai)聯(lian)軸器(qi)(qi)具有(you)很高的(de)(de)彈性,補償兩(liang)(liang)(liang)軸相(xiang)對(dui)位移(yi)的(de)(de)能力較大,并(bing)有(you)良好(hao)的(de)(de)阻尼,而(er)且結(jie)構(gou)簡單、不需潤滑、裝拆和維護都比(bi)較方(fang)便。
輪胎式聯軸器缺點是承載能力(li)(li)不高(gao)、外(wai)形尺(chi)(chi)寸較大(da),隨著兩(liang)軸相對(dui)扭(niu)轉(zhuan)角的(de)(de)增加使(shi)(shi)輪胎(tai)外(wai)形扭(niu)歪(wai),軸向(xiang)(xiang)(xiang)尺(chi)(chi)寸略有減小,將在兩(liang)軸上產(chan)生(sheng)較大(da)的(de)(de)附加軸向(xiang)(xiang)(xiang)力(li)(li),使(shi)(shi)軸承負(fu)載加大(da)而降低(di)壽命。輪胎(tai)聯(lian)軸器高(gao)速運轉(zhuan)時(shi),輪胎(tai)外(wai)緣由于(yu)離心力(li)(li)的(de)(de)作(zuo)用而向(xiang)(xiang)(xiang)外(wai)擴張,將進一(yi)步(bu)增大(da)附加軸向(xiang)(xiang)(xiang)力(li)(li)。為此,在安裝聯(lian)軸器時(shi)應采(cai)取措(cuo)施(shi),使(shi)(shi)輪胎(tai)中的(de)(de)應力(li)(li)方(fang)(fang)向(xiang)(xiang)(xiang)與(yu)工作(zuo)時(shi)產(chan)生(sheng)的(de)(de)應力(li)(li)方(fang)(fang)向(xiang)(xiang)(xiang)相反(fan),以抵消部分附加軸向(xiang)(xiang)(xiang)力(li)(li),達到(dao)改善聯(lian)軸器和兩(liang)軸承的(de)(de)工和條件。
輪胎(tai)式聯(lian)軸(zhou)器由于種(zhong)(zhong)種(zhong)(zhong)原因使其質心或慣(guan)性(xing)(xing)(xing)主軸(zhou)與其加(jia)轉(zhuan)軸(zhou)線不重合,在運(yun)轉(zhuan)時將產生不平(ping)衡離心慣(guan)性(xing)(xing)(xing)力、離心慣(guan)性(xing)(xing)(xing)力偶(ou)和(he)動撓度(振型(xing))的現象(xiang)(xiang),稱(cheng)為轉(zhuan)子(zi)的不平(ping)衡現象(xiang)(xiang),這種(zhong)(zhong)不平(ping)衡現象(xiang)(xiang)必然引起軸(zhou)系的振動,從而影(ying)響機(ji)器的正常(chang)工(gong)作(zuo)和(he)使用(yong)壽命,因而對其必須加(jia)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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