實時無隙鋼球精密傳動嚙合副本體溫度場分析
發(fā)布時間:2018-09-14 09:24
【摘要】:根據(jù)傳熱學理論,建立實時無隙鋼球精密傳動嚙合副本體溫度場的計算模型,結合機構的結構特點,推導出嚙合副相對滑動速度、最大接觸應力和摩擦因數(shù)的計算公式,建立了嚙合副熱流密度以及擺線槽嚙合面、鋼球表面和嚙合副端面等區(qū)域的對流換熱系數(shù)數(shù)學模型。通過有限元軟件計算出嚙合副本體溫度場,分析了機構設計參數(shù)對本體溫度場的影響規(guī)律。結果表明:中心盤的本體溫度高于行星盤,且參數(shù)變化對嚙合副本體溫度場有較明顯的影響。研究結果為實時無隙鋼球精密傳動嚙合副熱彈耦合分析與可靠性研究奠定了理論基礎。
[Abstract]:According to the theory of heat transfer, the calculation model of the temperature field of the meshing replica body of the real time steel ball precision transmission is established. The relative sliding velocity, maximum contact stress and friction coefficient of the meshing pair are derived according to the structural characteristics of the mechanism. A mathematical model of heat flux of meshing pair and convection heat transfer coefficient of cycloidal groove meshing surface, steel ball surface and meshing pair end surface are established. The temperature field of meshing replica body is calculated by finite element software, and the influence of mechanism design parameters on bulk temperature field is analyzed. The results show that the body temperature of the central disk is higher than that of the planetary disk, and the change of the parameters has obvious influence on the temperature field of the meshing replica. The results lay a theoretical foundation for the thermoelastic coupling analysis and reliability study of the meshing pair of real time steel ball precision transmission.
【作者單位】: 燕山大學機械工程學院;
【基金】:國家自然科學基金項目(51275440) 河北省自然科學基金項目(E2013203085)資助~~
【分類號】:TH132.41
本文編號:2242296
[Abstract]:According to the theory of heat transfer, the calculation model of the temperature field of the meshing replica body of the real time steel ball precision transmission is established. The relative sliding velocity, maximum contact stress and friction coefficient of the meshing pair are derived according to the structural characteristics of the mechanism. A mathematical model of heat flux of meshing pair and convection heat transfer coefficient of cycloidal groove meshing surface, steel ball surface and meshing pair end surface are established. The temperature field of meshing replica body is calculated by finite element software, and the influence of mechanism design parameters on bulk temperature field is analyzed. The results show that the body temperature of the central disk is higher than that of the planetary disk, and the change of the parameters has obvious influence on the temperature field of the meshing replica. The results lay a theoretical foundation for the thermoelastic coupling analysis and reliability study of the meshing pair of real time steel ball precision transmission.
【作者單位】: 燕山大學機械工程學院;
【基金】:國家自然科學基金項目(51275440) 河北省自然科學基金項目(E2013203085)資助~~
【分類號】:TH132.41
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