小型内燃机与摩托车
小型內燃機與摩託車
소형내연궤여마탁차
SMALL INTERNAL COMBUSTION ENGINE
2014年
4期
49-52
,共4页
左云%冀晓栋%于鹏飞%李佳%孙富强%宋清哲
左雲%冀曉棟%于鵬飛%李佳%孫富彊%宋清哲
좌운%기효동%우붕비%리가%손부강%송청철
平衡轴%抱轴%配合间隙%NVH%润滑系统
平衡軸%抱軸%配閤間隙%NVH%潤滑繫統
평형축%포축%배합간극%NVH%윤활계통
Balance shaft%Journal sticking%Fit clearance%NVH%Lubrication system
平衡轴系统配合间隙的设计要考虑形状公差及位置公差、材料线膨胀系数等因素的综合影响，考虑不全面会导致实际工作的配合间隙不合理，过大或者过小都可能导致抱轴问题的发生。优化配合间隙能够有效地解决抱轴问题，但需要重新评价对整机润滑系统、NVH性能的影响并加以验证。试验结果表明：间隙的优化有效解决了平衡轴抱轴问题，同时对系统油压、NVH性能带来影响在可接受的范围内。
平衡軸繫統配閤間隙的設計要攷慮形狀公差及位置公差、材料線膨脹繫數等因素的綜閤影響，攷慮不全麵會導緻實際工作的配閤間隙不閤理，過大或者過小都可能導緻抱軸問題的髮生。優化配閤間隙能夠有效地解決抱軸問題，但需要重新評價對整機潤滑繫統、NVH性能的影響併加以驗證。試驗結果錶明：間隙的優化有效解決瞭平衡軸抱軸問題，同時對繫統油壓、NVH性能帶來影響在可接受的範圍內。
평형축계통배합간극적설계요고필형상공차급위치공차、재료선팽창계수등인소적종합영향，고필불전면회도치실제공작적배합간극불합리，과대혹자과소도가능도치포축문제적발생。우화배합간극능구유효지해결포축문제，단수요중신평개대정궤윤활계통、NVH성능적영향병가이험증。시험결과표명：간극적우화유효해결료평형축포축문제，동시대계통유압、NVH성능대래영향재가접수적범위내。
The comprehensive influence of form tolerance,position tolerance,linear expansion coefficient of material and other factors should be considered during the design of fit clearance. Incomplete considera-tion will result that the fit clearance in real work has too much deviation with theoretical calculation,which can lead to journal sticking. The changing of fit clearance can effectively solve journal sticking,but it also has some negative effects to lubrication system and NVH performance of complete engine. The design change needs detailed verification.
