烟草科技
煙草科技
연초과기
TOBACCO SCIENCE & TECHNOLOGY
2014年
12期
15-18
,共4页
周长江%孙银方%欧育健%康瑛
週長江%孫銀方%歐育健%康瑛
주장강%손은방%구육건%강영
卷接机组%接烟轮%凸轮摆杆机构%间隙%烟支交接%运动学
捲接機組%接煙輪%凸輪襬桿機構%間隙%煙支交接%運動學
권접궤조%접연륜%철륜파간궤구%간극%연지교접%운동학
Cigarette maker%Transfer drum%Cam-swinging link mechanism%Clearance%Cigarette transfer%Kinematics
为研究运动副间隙对烟支交接性能的影响，基于连续接触模型建立了含间隙接烟轮凸轮摆杆机构，并结合拉格朗日方程对其进行了运动分析。通过系统仿真，得到了考虑间隙和不考虑间隙时烟支交接过程中活动手烟道中心和蜘蛛手吸爪中心的相对位移、相对速度和相对加速度的偏差量。结果表明：①运动副间隙对接烟轮凸轮摆杆机构运动性能影响较大。间隙越大，相对位移、相对速度和相对加速度的偏差波动越剧烈；间隙越小，系统运动特性越趋向于理想机构，烟支交接性能越好。②提高构件的加工精度和配合精度，可减小运动副间隙及碰撞引起的波动。③使用耐磨材料和提高摩擦副表面品质，可减少机构的磨损量。考虑运动副间隙的凸轮摆杆机构能够真实反映接烟轮机构的运动学特性，准确预测含间隙机构的交接性能，提高烟支交接系统的稳定性。
為研究運動副間隙對煙支交接性能的影響，基于連續接觸模型建立瞭含間隙接煙輪凸輪襬桿機構，併結閤拉格朗日方程對其進行瞭運動分析。通過繫統倣真，得到瞭攷慮間隙和不攷慮間隙時煙支交接過程中活動手煙道中心和蜘蛛手吸爪中心的相對位移、相對速度和相對加速度的偏差量。結果錶明：①運動副間隙對接煙輪凸輪襬桿機構運動性能影響較大。間隙越大，相對位移、相對速度和相對加速度的偏差波動越劇烈；間隙越小，繫統運動特性越趨嚮于理想機構，煙支交接性能越好。②提高構件的加工精度和配閤精度，可減小運動副間隙及踫撞引起的波動。③使用耐磨材料和提高摩抆副錶麵品質，可減少機構的磨損量。攷慮運動副間隙的凸輪襬桿機構能夠真實反映接煙輪機構的運動學特性，準確預測含間隙機構的交接性能，提高煙支交接繫統的穩定性。
위연구운동부간극대연지교접성능적영향，기우련속접촉모형건립료함간극접연륜철륜파간궤구，병결합랍격랑일방정대기진행료운동분석。통과계통방진，득도료고필간극화불고필간극시연지교접과정중활동수연도중심화지주수흡조중심적상대위이、상대속도화상대가속도적편차량。결과표명：①운동부간극대접연륜철륜파간궤구운동성능영향교대。간극월대，상대위이、상대속도화상대가속도적편차파동월극렬；간극월소，계통운동특성월추향우이상궤구，연지교접성능월호。②제고구건적가공정도화배합정도，가감소운동부간극급팽당인기적파동。③사용내마재료화제고마찰부표면품질，가감소궤구적마손량。고필운동부간극적철륜파간궤구능구진실반영접연륜궤구적운동학특성，준학예측함간극궤구적교접성능，제고연지교접계통적은정성。
To research the influence of clearance in kinetic pairs on cigarette transfer performance, a clearance inclusive cam-swinging link mechanism was built for transfer drum on the basis of a continuous contact model, and its kinematics was analyzed by referring to Lagrange equation. Via system simulation, the deviations of relative displacement, relative velocity and relative accelerated velocity between the rod passage center of the moving catcher and the center of the suction carriers on the spider were obtained in the presence or absence of clearance. The results showed that: 1) The clearance in kinetic pairs affected the kinetic characteristics of the mechanism greatly, the deviations mentioned above fluctuated more drastically with the increase of clearance;while with the decrease of the clearance, the kinetic characteristics of the system increasingly approached to an ideal mechanism, cigarettes would be transferred more smoothly. 2) Raising machining precision and matching precision could reduce clearance in kinetic pairs and the fluctuation caused by impact. 3) Using anti-abrasive material and raising the surface quality in friction pairs would reduce the wear of moving parts. Taking into account the clearance in kinetic pairs could truly reflect the kinetic characteristics of the cam-swinging link mechanism in the transfer drum, accurately predict the transfer performance of the mechanism, and promote the stability of cigarette transfer system.
