WS萬向聯軸器所聯(lian)(lian)(lian)接的兩軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)不在(zai)(zai)同(tong)一(yi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)線上時(shi), 主(zhu)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)等速(su)(su)運(yun)動(dong)(dong)(dong)(dong)、從(cong)(cong)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)將(jiang)在(zai)(zai)某一(yi)范圍內(nei)(nei)作周期性變(bian)(bian)(bian)速(su)(su)運(yun)動(dong)(dong)(dong)(dong), 即兩軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)不同(tong)步(bu)。雙(shuang)聯(lian)(lian)(lian)十字(zi)(zi)(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)等角速(su)(su)傳(chuan)動(dong)(dong)(dong)(dong)理論(lun)認為(wei)將(jiang)兩個(ge)十字(zi)(zi)(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)萬(wan)向聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)串(chuan)聯(lian)(lian)(lian)起來使用, 則能消除(chu)單個(ge)十字(zi)(zi)(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)萬(wan)向聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)器(qi)傳(chuan)動(dong)(dong)(dong)(dong)的不均勻性, 可以(yi)實(shi)現等速(su)(su)傳(chuan)動(dong)(dong)(dong)(dong), 但需滿足如下條件:a 、中間(jian)(jian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)、主(zhu)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)和從(cong)(cong)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)三軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)應(ying)在(zai)(zai)同(tong)一(yi)平面(mian)(mian)內(nei)(nei);b 、中間(jian)(jian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)兩端叉(cha)形接頭的叉(cha)口(kou)應(ying)位(wei)于同(tong)一(yi)平面(mian)(mian)內(nei)(nei);雙(shuang)聯(lian)(lian)(lian)十字(zi)(zi)(zi)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)萬(wan)向聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)器(qi), 從(cong)(cong)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)可以(yi)得到穩定(ding)的角速(su)(su)度及轉矩, 并且(qie)中間(jian)(jian)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)可以(yi)伸縮(suo),以(yi)滿足一(yi)些行走機械或實(shi)驗(yan)設備對主(zhu)、從(cong)(cong)動(dong)(dong)(dong)(dong)軸(zhou)(zhou)(zhou)(zhou)(zhou)(zhou)位(wei)置在(zai)(zai)傳(chuan)動(dong)(dong)(dong)(dong)中隨(sui)時(shi)變(bian)(bian)(bian)化的要求(qiu), 即α1 、α2 隨(sui)時(shi)變(bian)(bian)(bian)化的要求(qiu)。
但這類萬(wan)(wan)向(xiang)(xiang)(xiang)聯軸(zhou)(zhou)器(qi)中(zhong)間(jian)軸(zhou)(zhou)的(de)(de)(de)速(su)度(du)是(shi)變化(hua)的(de)(de)(de), 從(cong)而(er)會(hui)引起附加慣性(xing)轉矩, 產(chan)生(sheng)扭轉振(zhen)動(dong)(dong)和(he)振(zhen)動(dong)(dong)噪聲(sheng)。因(yin)此為實現傳動(dong)(dong)軸(zhou)(zhou)的(de)(de)(de)平(ping)衡(heng)運轉, 通常規定(ding)慣性(xing)力矩不能超(chao)過萬(wan)(wan)向(xiang)(xiang)(xiang)軸(zhou)(zhou)額(e)定(ding)轉矩的(de)(de)(de)8 %, 最大不能超(chao)過萬(wan)(wan)向(xiang)(xiang)(xiang)軸(zhou)(zhou)額(e)定(ding)轉矩的(de)(de)(de)30 %。另(ling)外中(zhong)間(jian)軸(zhou)(zhou)的(de)(de)(de)存在(zai)使萬(wan)(wan)向(xiang)(xiang)(xiang)節的(de)(de)(de)軸(zhou)(zhou)向(xiang)(xiang)(xiang)尺寸加大,并且中(zhong)間(jian)軸(zhou)(zhou)伸(shen)縮會(hui)導致軸(zhou)(zhou)向(xiang)(xiang)(xiang)力的(de)(de)(de)產(chan)生(sheng)(當中(zhong)間(jian)軸(zhou)(zhou)伸(shen)長時在(zai)節叉處產(chan)生(sheng)軸(zhou)(zhou)向(xiang)(xiang)(xiang)拉(la)力, 縮短時則產(chan)生(sheng)軸(zhou)(zhou)向(xiang)(xiang)(xiang)壓力)。
軸向力作用于十字(zi)軸軸承上, 同時也引起(qi)傳動軸支承處的軸向載荷及徑向載荷。
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