CIMR-G3U2011原傳動(dòng)方式是減速機(jī)高速軸與液力偶合器通過鍵剛性聯(lián)接。電機(jī)軸通過聯(lián)軸器與液力偶合器相聯(lián),由于兩半聯(lián)軸器間彈性盤橡膠伴的存在,使得液力偶合器絕大部分自重及由于各種原因產(chǎn)生的附加力矩由減速機(jī)高速軸承受。
1校驗(yàn)原傳動(dòng)布置下高速軸許用應(yīng)力校驗(yàn)包括許用扭應(yīng)力校驗(yàn)和許用彎曲應(yīng)力校驗(yàn)。
1.1許用扭應(yīng)力校驗(yàn)高速軸許用扭應(yīng)力校驗(yàn)實(shí)際軸徑滿足扭應(yīng)力條件。
1.2許用彎曲應(yīng)力校驗(yàn)高速軸受扭應(yīng)力,同時(shí)還受來自液力偶合器自重等產(chǎn)生的彎曲應(yīng)力作用。
CIMR-G3U2011液力偶合器自重產(chǎn)生的彎矩肘。垂直面內(nèi)軸承12徑向游隙造成液力偶合器離心力,而產(chǎn)生彎隨2直面。水面邰其分彎矩。隨lnl,i3電機(jī)軸與1速軸1同軸產(chǎn)生的彎1意方向是梅花彈性盤由于變形而產(chǎn)生的彈力注電機(jī)軸與高速軸1軸度允許4.1.
4液力偶合器制造的不均性造成重心偏離軸心線而產(chǎn)生離軸心線距離。
其合成矩1=.,4由于邙的復(fù)雜性及些因素的不確定性,肘34暫不考慮。
當(dāng)量彎矩肘=2+入丁2T扭矩工程師園地2000.1.中國建材裝備,48,許用最小直徑為,47.732,兩者幾乎相等,若再考慮厘314的影響,實(shí)際軸徑更不能滿足彎曲應(yīng)力條件。
2.改進(jìn)措施由于電機(jī)軸徑為36,完全滿足彎曲應(yīng)力條件,CIMR-G3U2011所以決定將液力偶合器和電機(jī)軸通過鍵剛性聯(lián)接,同時(shí)制作個(gè)過渡法蘭,將減速機(jī)高速軸通過聯(lián)軸器與液力偶合器相聯(lián)。由于液力偶器軸孔內(nèi)徑為348,需將軸孔加工至16和電機(jī)軸配合。過渡法蘭2.過渡法蘭通過螺拴和半聯(lián)軸器鉆孔攻絲相聯(lián),半聯(lián)軸器和偶合器之間安裝梅花彈性塊。
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