在工業機器人關節用精密減速器頻繁的正反轉運動中,內部軸承的疲勞壽命會受到多方麵的不利影響。
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另外,頻繁的正反轉還會使軸承承受的衝擊載荷增加,雖然每次正反轉的衝擊可能不大,但長期積累下來,會對軸承的滾道、滾動體以及保持架等部件造成累積性的損傷,使軸承的疲勞壽命縮短。例如,保持架可能因為頻繁的受力變化而出現變形、磨(mo)損(sun),導(dao)致(zhi)滾(gun)動(dong)體(ti)的(de)運(yun)行(xing)軌(gui)跡(ji)發(fa)生(sheng)偏(pian)差(cha),進(jin)一(yi)步(bu)加(jia)劇(ju)軸(zhou)承(cheng)內(nei)部(bu)的(de)應(ying)力(li)集(ji)中(zhong),加(jia)速(su)疲(pi)勞(lao)破(po)壞(huai)的(de)進(jin)程(cheng),從(cong)而(er)降(jiang)低(di)軸(zhou)承(cheng)的(de)整(zheng)體(ti)疲(pi)勞(lao)壽(shou)命(ming),影(ying)響(xiang)精(jing)密(mi)減(jian)速(su)器(qi)的(de)正(zheng)常(chang)運(yun)行(xing)和(he)使(shi)用(yong)壽(shou)命(ming)。
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