中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2011年
19期
2293-2297
,共5页
王福吉%阳江源%贾振元%王威%卢晓红
王福吉%暘江源%賈振元%王威%盧曉紅
왕복길%양강원%가진원%왕위%로효홍
滚珠丝杠副%非协调性接触%轴向接触刚度%有限元仿真
滾珠絲槓副%非協調性接觸%軸嚮接觸剛度%有限元倣真
곤주사강부%비협조성접촉%축향접촉강도%유한원방진
ball screw%non-conformal contact%axial contact stiffness%finite element simulation
滚珠丝杠副中滚珠与丝杠滚道和螺母滚道的接触是一种典型的非协调性接触,这种接触的特性对滚珠丝杠副的承载能力、传动效率和定位精度等都有着重要的影响。为此,采用Hertz接触理论建立了滚珠丝杠副轴向接触刚度的求解公式,然后从滚珠丝杠副轴向负载、设计参数和材料属性等方面分析了滚珠丝杠副的接触特性,最后运用有限元分析软件ANSYS对滚珠与丝杠滚道的接触进行仿真,仿真结果与理论结果非常相近,从而验证了理论分析的正确性。研究结果为高速、重载和精密滚珠丝杠副的设计与使用提供了理论指导。
滾珠絲槓副中滾珠與絲槓滾道和螺母滾道的接觸是一種典型的非協調性接觸,這種接觸的特性對滾珠絲槓副的承載能力、傳動效率和定位精度等都有著重要的影響。為此,採用Hertz接觸理論建立瞭滾珠絲槓副軸嚮接觸剛度的求解公式,然後從滾珠絲槓副軸嚮負載、設計參數和材料屬性等方麵分析瞭滾珠絲槓副的接觸特性,最後運用有限元分析軟件ANSYS對滾珠與絲槓滾道的接觸進行倣真,倣真結果與理論結果非常相近,從而驗證瞭理論分析的正確性。研究結果為高速、重載和精密滾珠絲槓副的設計與使用提供瞭理論指導。
곤주사강부중곤주여사강곤도화라모곤도적접촉시일충전형적비협조성접촉,저충접촉적특성대곤주사강부적승재능력、전동효솔화정위정도등도유착중요적영향。위차,채용Hertz접촉이론건립료곤주사강부축향접촉강도적구해공식,연후종곤주사강부축향부재、설계삼수화재료속성등방면분석료곤주사강부적접촉특성,최후운용유한원분석연건ANSYS대곤주여사강곤도적접촉진행방진,방진결과여이론결과비상상근,종이험증료이론분석적정학성。연구결과위고속、중재화정밀곤주사강부적설계여사용제공료이론지도。
The contact between balls and screw races or nut races is a kind of typical non-conformal contact and its characteristics will influence greatly on ball screw's load capacity,transmission efficiency and positioning accuracy.Thus Hertz contact theory was adopted to construct the solution formula of ball screw's contact stiffness,then ball screw's contact characteristics in terms of axial load,design parameters and material properties were analyzed,and the contact deformation values of the contact between balls and screw races were obtained through finite element simulation method.The simulation results are close to the theoretic ones,which proves the correctness of the theoretic analyses.The present study offers theoretical support for the design and application of high speed,heavy load and precision ball screws.