
輪胎聯軸器采用輪(lun)胎體狀(zhuang)橡(xiang)膠元件,與兩(liang)個(ge)半聯經過螺栓(shuan)聯接,實現(xian)扭矩傳(chuan)遞和位移(yi)補(bu)償。橡(xiang)膠輪(lun)胎聯軸器具有(you)較高的彈(dan)性性能(neng),扭轉(zhuan)剛度小,減(jian)震(zhen)能(neng)力強,軸向補(bu)償能(neng)力較大(da),有(you)良(liang)好(hao)的阻尼(ni)性能(neng)。
彈性(xing)輪(lun)(lun)(lun)(lun)胎(tai)聯(lian)(lian)軸(zhou)器(qi)輪(lun)(lun)(lun)(lun)胎(tai)體(ti)(ti)是(shi)輪(lun)(lun)(lun)(lun)胎(tai)聯(lian)(lian)軸(zhou)器(qi)必要的備件之(zhi)一,相應的分為(wei)UL、LA、LB輪(lun)(lun)(lun)(lun)胎(tai)體(ti)(ti)。輪(lun)(lun)(lun)(lun)胎(tai)式聯(lian)(lian)軸(zhou)器(qi)分為(wei)凸型和(he)(he)凹型兩大類(lei),凸型又分為(wei)帶骨架(jia)整(zheng)體(ti)(ti)式、無骨整(zheng)體(ti)(ti)式和(he)(he)徑向切口(kou)式三種。輪(lun)(lun)(lun)(lun)胎(tai)環內側用(yong)硫(liu)化(hua)方法與鋼質骨架(jia)粘接(jie)成一體(ti)(ti),骨架(jia)上的螺(luo)栓(shuan)孔處(chu)焊有(you)螺(luo)母(mu)。裝(zhuang)配時用(yong)螺(luo)栓(shuan)與兩半聯(lian)(lian)軸(zhou)器(qi)的凸緣連接(jie),依靠擰緊螺(luo)栓(shuan)使輪(lun)(lun)(lun)(lun)胎(tai)與凸緣端面之(zhi)間產生(sheng)的摩擦力來傳(chuan)遞轉矩(ju),輪(lun)(lun)(lun)(lun)胎(tai)環工(gong)作時發生(sheng)扭轉剪(jian)切變(bian)形(xing),故輪(lun)(lun)(lun)(lun)胎(tai)聯(lian)(lian)軸(zhou)器(qi)具有(you)很高(gao)的彈性(xing),補償兩軸(zhou)相對位移的能力較大,并有(you)良好的阻尼(ni),而(er)且結(jie)構(gou)簡單(dan)、不(bu)需潤滑、裝(zhuang)拆和(he)(he)維護都比較方便。
輪胎式聯軸器缺點是承載(zai)(zai)能力不高、外(wai)形尺寸較大(da)(da),隨著兩軸(zhou)(zhou)相對扭轉角的增加(jia)(jia)使(shi)輪胎(tai)外(wai)形扭歪,軸(zhou)(zhou)向尺寸略有減小,將(jiang)在兩軸(zhou)(zhou)上產生(sheng)(sheng)較大(da)(da)的附加(jia)(jia)軸(zhou)(zhou)向力,使(shi)軸(zhou)(zhou)承負載(zai)(zai)加(jia)(jia)大(da)(da)而降低壽(shou)命(ming)。輪胎(tai)聯(lian)(lian)軸(zhou)(zhou)器(qi)高速運(yun)轉時,輪胎(tai)外(wai)緣由(you)于離心力的作(zuo)用(yong)而向外(wai)擴張,將(jiang)進一步增大(da)(da)附加(jia)(jia)軸(zhou)(zhou)向力。為此(ci),在安(an)裝聯(lian)(lian)軸(zhou)(zhou)器(qi)時應采取措施(shi),使(shi)輪胎(tai)中(zhong)的應力方向與(yu)工作(zuo)時產生(sheng)(sheng)的應力方向相反,以抵消(xiao)部(bu)分附加(jia)(jia)軸(zhou)(zhou)向力,達(da)到改善(shan)聯(lian)(lian)軸(zhou)(zhou)器(qi)和(he)兩軸(zhou)(zhou)承的工和(he)條件。
輪(lun)胎式聯軸(zhou)器(qi)由(you)于種(zhong)種(zhong)原因使其(qi)質心或慣性(xing)主軸(zhou)與其(qi)加轉(zhuan)軸(zhou)線不(bu)重(zhong)合(he),在運轉(zhuan)時將產生(sheng)不(bu)平衡(heng)離(li)心慣性(xing)力、離(li)心慣性(xing)力偶和(he)動撓度(振型)的現(xian)象,稱為(wei)轉(zhuan)子(zi)的不(bu)平衡(heng)現(xian)象,這種(zhong)不(bu)平衡(heng)現(xian)象必然引(yin)起軸(zhou)系的振動,從而(er)影響機器(qi)的正常工作和(he)使用(yong)壽命,因而(er)對(dui)其(qi)必須加以重(zhong)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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