軸承用途應用
軸承作用
jiuqizuoyonglaijiangyinggaishizhicheng,jizimianjieshiyonglaichengzhoude,danzhezhishiqizuoyongdeyibufen,zhichengqishizhijiushinenggouchengdanjingxiangzaihe。yekeyilijieweitashiyonglaigudingzhoude。zhouchengkuaiyiyouzidonghuaxuanxingyoushoulu。jiushigudingzhoushiqizhinengshixianzhuandong,erkongzhiqizhouxianghejingxiangdeyidong。dianjimeiyouzhouchengdehuagenbenjiubunenggongzuo。yinweizhoukenengxiangrenhefangxiangyundong,erdianjigongzuoshiyaoqiuzhouzhinengzuozhuandong。conglilunshanglaijiangbukenengshixianchuandongdezuoyong,bujinruci,zhouchenghaihuiyingxiangchuandong,weilejiangdizhegeyingxiangzaigaosuzhoudezhouchengshangbixushixianlianghaoderunhua,youdezhouchengbenshenyijingyourunhua,jiaozuoyurunhuazhoucheng,erdaduoshudezhouchengbixuyourunhuayou,fuzezaigaosuyunzhuanshi,youyumocabujinhuizengjianenghao,gengkepadeshihenrongyisunhuaizhoucheng。bahuadongmocazhuanbianweigundongmocadeshuofashipianmiande,yinweiyouzhongjiaohuadongzhouchengdedongxi。
潤滑
滾動軸承的潤滑目有減少軸承內部摩擦及磨損,防止燒粘;延長其使用壽命;排出摩擦熱、冷卻,防止軸承過熱,防止潤滑油自身老化;也有防止異物侵入軸承內部,或防止生鏽、腐蝕之效果。
潤滑方法
軸承的潤滑方法,分為脂潤滑和油潤滑。為了使軸承很好地發揮機能,首先,要選擇適合使用條件、使(shi)用(yong)目(mu)的(de)的(de)潤(run)滑(hua)方(fang)法(fa)。若(ruo)隻(zhi)考(kao)慮(lv)潤(run)滑(hua),油(you)潤(run)滑(hua)的(de)潤(run)滑(hua)性(xing)占(zhan)優(you)勢(shi)。但(dan)是(shi),脂(zhi)潤(run)滑(hua)有(you)可(ke)以(yi)簡(jian)化(hua)軸(zhou)承(cheng)周(zhou)圍(wei)結(jie)構(gou)的(de)特(te)長(chang),將(jiang)脂(zhi)潤(run)滑(hua)和(he)油(you)潤(run)滑(hua)的(de)利(li)弊(bi)比(bi)較(jiao)。潤(run)滑(hua)時(shi)要(yao)特(te)別(bie)注(zhu)意(yi)用(yong)量(liang),不(bu)管(guan)是(shi)油(you)潤(run)滑(hua)還(hai)是(shi)脂(zhi)潤(run)滑(hua),量(liang)太(tai)少(shao)潤(run)滑(hua)不(bu)充(chong)分(fen)影(ying)響(xiang)軸(zhou)承(cheng)壽(shou)命(ming),量(liang)太(tai)多(duo)會(hui)產(chan)生(sheng)大(da)的(de)阻(zu)力(li),影(ying)響(xiang)轉(zhuan)速(su)。
密封
軸承的密封可分為自帶密封和外加密封兩類。所謂軸承自帶密封就是把軸承本身製造成具有密封性能裝置的。如軸承帶防塵蓋、密mi封feng圈quan等deng。這zhe種zhong密mi封feng占zhan用yong空kong間jian很hen小xiao,安an裝zhuang拆chai卸xie方fang便bian,造zao價jia也ye比bi較jiao低di。所suo謂wei軸zhou承cheng外wai加jia密mi封feng性xing能neng裝zhuang置zhi,就jiu是shi在zai安an裝zhuang端duan蓋gai等deng內nei部bu製zhi造zao成cheng具ju有you各ge種zhong性xing能neng的de密mi封feng裝zhuang置zhi。軸zhou承cheng外wai加jia密mi封feng又you分fen為wei非fei接jie觸chu式shi密mi封feng與yu接jie觸chu式shi密mi封feng兩liang種zhong。其qi中zhong非fei接jie觸chu式shi密mi封feng適shi用yong於yu高gao速su和he高gao溫wen場chang合he,有you間jian隙xi式shi、迷宮式和墊圈式等不同結構形式。接觸式密封適用於中、低速的工作條件,常用的有毛氈密封、皮碗密封等結構形式。
根gen據ju軸zhou承cheng工gong作zuo狀zhuang況kuang和he工gong作zuo環huan境jing對dui密mi封feng程cheng度du的de要yao求qiu,在zai工gong程cheng設she計ji上shang常chang常chang是shi綜zong合he運yun用yong各ge種zhong密mi封feng形xing式shi,以yi達da到dao更geng好hao的de密mi封feng效xiao果guo。對dui軸zhou承cheng外wai加jia密mi封feng的de選xuan擇ze應ying考kao慮lv下xia列lie幾ji種zhong主zhu要yao因yin素su:
軸承潤滑劑和種類(潤滑脂和潤滑油);
軸承的工作環境,占用空間的大小;
軸的支承結構優點,允許角度偏差;
密封表麵的圓周速度;
軸承的工作溫度;
製造成本。
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