中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2014年
23期
3206-3211
,共6页
无隙钢球精密传动%啮合副%相对滑动速度%滑动率%运动学仿真
無隙鋼毬精密傳動%齧閤副%相對滑動速度%滑動率%運動學倣真
무극강구정밀전동%교합부%상대활동속도%활동솔%운동학방진
no-backlash ball precision transmission%meshing pair%relative sliding velocity%slid-ing ratio%kinematics simulation
针对无隙钢球精密传动啮合副中钢球滚滑现象对传动精度的影响,运用啮合原理和转化机构运动学分析方法,提出采用弧长差表征啮合副滑动特性的方法,阐释了无隙钢球精密传动啮合副传动过程中钢球滑动产生的机理。建立了理论分析数学模型,分析了滑滚状态下啮合副在啮合传动过程中相对滑动速度和滑动率的变化规律,并绘制了其变化曲线。建立了无隙钢球精密传动啮合副三维实体,并利用 ADAMS 进行了运动学仿真分析。结果表明,啮合副传动过程存在微量滑动,钢球与中心盘啮合处的滑动速度和滑动率较大,磨损也较严重。
針對無隙鋼毬精密傳動齧閤副中鋼毬滾滑現象對傳動精度的影響,運用齧閤原理和轉化機構運動學分析方法,提齣採用弧長差錶徵齧閤副滑動特性的方法,闡釋瞭無隙鋼毬精密傳動齧閤副傳動過程中鋼毬滑動產生的機理。建立瞭理論分析數學模型,分析瞭滑滾狀態下齧閤副在齧閤傳動過程中相對滑動速度和滑動率的變化規律,併繪製瞭其變化麯線。建立瞭無隙鋼毬精密傳動齧閤副三維實體,併利用 ADAMS 進行瞭運動學倣真分析。結果錶明,齧閤副傳動過程存在微量滑動,鋼毬與中心盤齧閤處的滑動速度和滑動率較大,磨損也較嚴重。
침대무극강구정밀전동교합부중강구곤활현상대전동정도적영향,운용교합원리화전화궤구운동학분석방법,제출채용호장차표정교합부활동특성적방법,천석료무극강구정밀전동교합부전동과정중강구활동산생적궤리。건립료이론분석수학모형,분석료활곤상태하교합부재교합전동과정중상대활동속도화활동솔적변화규률,병회제료기변화곡선。건립료무극강구정밀전동교합부삼유실체,병이용 ADAMS 진행료운동학방진분석。결과표명,교합부전동과정존재미량활동,강구여중심반교합처적활동속도화활동솔교대,마손야교엄중。
In view of the influences of rolling and slipping of balls of engagement pair on the trans-mission accuracy of no-backlash ball precision transmission,applying engagement theory and conver-ted mechanism kinematic analysis methods,the arc length difference was presented to represent slid-ing characteristics of engagement pairs.Sliding generating mechanism of balls during the transmission process was interpreted.Theoretical analysis mathematical model was established.The change rules of relative sliding velocity and sliding ratio of engagement pairs were analyzed,and variation curves were also plotted.The three-dimensional entity of no-backlash ball precision transmission was estab-lished,and kinematics simulation was carried out by using ADAMS.The results show that there is microscale sliding between meshing pairs.When the central plate engages with balls,sliding velocity and sliding rate is more obvious,the wear will be more serious.