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彈性柱銷齒式聯軸器的受熱變形現象

文章出(chu)處://365aixuexi.cn責(ze)任編輯:利永聯軸(zhou)器(qi)人氣:1026發表時間:2020-11-13 14:20:20
 

  彈性柱銷齒式聯軸器需要進行高頻調質處理,由于高頻處理后需要較高溫度進行,會受熱變形。彈性柱銷齒式聯軸器軸孔公差會由于熱脹冷縮而變成負公差,因此對于聯軸器高頻(pin)處(chu)理(li)在加(jia)(jia)熱(re)爐內(nei)加(jia)(jia)熱(re)到(dao)指定溫(wen)度,并檢測工件溫(wen)度。聯(lian)軸節(jie)取出后翻身,放人爐內(nei)繼(ji)續加(jia)(jia)熱(re)。如用木柴(chai)加(jia)(jia)熱(re)大型聯(lian)軸節(jie),則(ze)經(jing)2~3h后,用量棒反(fan)復測量孔(kong)徑(jing),直至尺寸更大的量棒能自由進(jin)入聯(lian)軸節(jie)孔(kong)內(nei),加(jia)(jia)熱(re)即可(ke)結束。

  彈(dan)性柱銷齒(chi)(chi)(chi)式聯軸(zhou)器出(chu)現(xian)(xian)(xian)內齒(chi)(chi)(chi)和外(wai)齒(chi)(chi)(chi)撮合,打齒(chi)(chi)(chi)現(xian)(xian)(xian)象(xiang)(xiang)的原因(yin)是(shi)因(yin)為材質沒有(you)(you)經過高頻(pin)蘸火處理,或者是(shi)內齒(chi)(chi)(chi)和外(wai)齒(chi)(chi)(chi)配合尺寸(cun)間(jian)隙(xi)誤差較(jiao)大(da),從(cong)而在高轉(zhuan)速運轉(zhuan)的情況下會出(chu)現(xian)(xian)(xian)打齒(chi)(chi)(chi)現(xian)(xian)(xian)象(xiang)(xiang)。其次呢,還有(you)(you)一種情況是(shi),外(wai)齒(chi)(chi)(chi)的弧度(du)較(jiao)為大(da),在兩(liang)軸(zhou)傳遞扭(niu)矩間(jian)兩(liang)軸(zhou)會發現(xian)(xian)(xian)不(bu)在同(tong)一水平線(xian)上(shang)的特點,鼓度(du)曲(qu)線(xian)曲(qu)率半徑與(yu)(yu)內齒(chi)(chi)(chi)單側(ce)減(jian)薄量成(cheng)正比,因(yin)此鼓度(du)圓半徑應(ying)盡可能大(da)。鼓度(du)曲(qu)線(xian)曲(qu)率半徑與(yu)(yu)內齒(chi)(chi)(chi)單側(ce)減(jian)薄量成(cheng)正比,即它與(yu)(yu)齒(chi)(chi)(chi)的嚙合間(jian)隙(xi)有(you)(you)關從(cong)事使內外(wai)齒(chi)(chi)(chi)出(chu)現(xian)(xian)(xian)打齒(chi)(chi)(chi)現(xian)(xian)(xian)象(xiang)(xiang),影響(xiang)聯軸(zhou)器使用壽命。

  彈(dan)性(xing)(xing)柱(zhu)銷齒(chi)式(shi)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)在(zai)傳遞中還可能會發生(sheng)螺(luo)栓拗斷,噪音較大,打齒(chi)現象(xiang)(xiang);如果(guo)發生(sheng)此(ci)類現象(xiang)(xiang),應該立刻拆卸彈(dan)性(xing)(xing)柱(zhu)銷齒(chi)式(shi)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi),對(dui)此(ci)進(jin)(jin)行分析檢(jian)查,而且要(yao)對(dui)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)進(jin)(jin)行定期保(bao)養和檢(jian)查,可以(yi)注入(ru)黃油,也需要(yao)對(dui)螺(luo)栓進(jin)(jin)行更換,從而可以(yi)增加(jia)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)的使(shi)用壽命。彈(dan)性(xing)(xing)柱(zhu)銷齒(chi)式(shi)聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)的內外齒(chi)由于(yu)長期磨合使(shi)用,轉速過高(gao),會導致聯(lian)軸(zhou)(zhou)器(qi)(qi)(qi)本(ben)身受熱變形(xing)(xing)。氮化處(chu)理的優點(dian)是表面壓應力大,耐磨性(xing)(xing)好,變形(xing)(xing)小(xiao),但滲(shen)層江,承(cheng)載能力低(di),脆性(xing)(xing)疲(pi)勞(lao)強(qiang)度不(bu)如滲(shen)碳高(gao)。

 
 
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