用户名: 密码: 验证码:
滚珠型弧面凸轮分度系统动力学建模与分析
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
弧面分度凸轮副是各种自动机械的关键功能部件,随着生产率的提高,机械的运转速度越来越高,本文提出了一种新型的基于钢球滚子的点啮合弧面分度凸轮副的结构,同其他形式滚子的弧面分度凸轮机构相比具有适应性强、传动效率好、高速性能优越、精度高、发热少、磨损小等优点,其“旋转—旋转”滚动传动副在目前数控机床等大型设备上还未见普及应用。对该新机构的研究,对于我国凸轮理论研究水平的提升和装备制造业的发展有着重要的实际意义。本课题在对钢球滚子弧面分度凸轮机构进行了建模与动力学方面的分析,主要工作集中在以下几个方面:
     1.分析了钢球滚子弧面分度凸轮机构的约束类型和运动规律的特征值,对其常用的运动规律进行了比较分析,给出了分度凸轮运动规律选取的一般原则。
     2.对钢球滚子弧面分度凸轮进行了啮合理论方面的分析,以空间回转变换张量和空间微分几何理论作为数学工具,采用回转运动群和圆矢量函数等数学表达方法,建立了工作滚道截形为双圆弧的弧面分度凸轮的数学模型,该模型通过控制滚道与钢球滚子的接触角,真正实现了分度盘从动件滚子与凸轮之间的点啮合传动。随后在Pro/e环境下建立了系统的三维几何模型,并对其压力角进行了分析,为后续的动力学分析奠定了基础。
     3.在几何建模的基础上,分析给出了钢球滚子弧面分度凸轮机构的弹性动力学模型,应用拉格朗日方程研究了各个部位的动力学特性,建立了系统的整体动力学方程,并应用振型叠加法对其进行了解耦与求解分析,将结果与线啮合圆柱弧面分度凸轮进行了对比分析,阐述其优越性所在。
     4.对弧面凸轮工作曲面进行了曲率分析,对比分析了修正正弦加速度、修正等速、修正梯形加速度三种运动规律的工作曲面曲率变化情况,应用Hertz接触模型对钢球滚子弧面凸轮机构进行了接触应力与接触变形分析,分析了影响接触应力与接触应变的因素。
Globoidal indexing cam mechanism is a key functional part of all kinds of automatic machines. With the promotion of produce efficiency, the rotational speed of machines goes higher and higher. A new type of Globoidal indexing cam mechanism based on steel balls which is engaged with the cam at one single point is presented. Compared with other types of indexing cam, it has an advantage in wide applicability, high transmission efficiency and precision, minor abrasion, superiority in performance of high rotational speed and better heat quality. The "rotation to rotation" transmission mechanism is rarely used in good-sized numerical control machines at present. It is of vital meaning that studying at the new mechanism to promote the cam academic level and advance the manufacturing. This academic dissertation establishes the model of the cam mechanism and analyses the dynamics response of the cam mechanism, the main work is listed as follows:
     1. The constraint form and the motion law's characteristic value of the Globoidal indexing cam are analyzed, and the motion laws which are most widely used are compared and studied, the principle of how to select the cam mechanism motion law is presented.
     2. The engage theory of the Globoidal indexing cam is studied based on the mathematic means of spatial rotation transformation tensor and space differential geometry theory. The mathematic model of the Globoidal indexing cam with double-arc cross-sectional shape working raceway is established by mathematic methods of rotary motion group and round vendor functions. This model genuinely achieves the point engagement transmission between the cam and indexing plate by controlling the contact angle of raceway and the steel balls. In addition, the geometric model is set up in Pro/e and the stress angle is analyzed, which provides a foundation for the followed dynamics studies.
     3. Based on the geometric model, this dissertation has studied and build the elastodynamics model of the Globoidal indexing cam, analyzed the dynamics characteristic of every component by means of Lagrange equation., and established the dynamics equation of the whole system, solved the equation using the modal superposition method. Finally, the result is compared with the line engagement indexing cam, the superiority is presented.
     4. This dissertation has analyzed the curvature of working surface of the Globoidal indexing cam, compared and studied curvature of three motion laws of revised isokinetic, revised trapezoidal acceleration and revised sine acceleration. In addition, this topic studied the contact stress and deformation of the Globoidal indexing cam using Hertz theory, presented the factors influencing the contact stress and deformation.
引文
[1]彭国勋,肖正扬.自动机械的凸轮机构设计[M].北京:机械工业出版社,1990:19-64
    [2]邹慧君,董师予.凸轮机构的现代设计[M].上海:上海交通大学出版社,1991:102-130
    [3]熊第霖,肖正扬.弧面凸轮机构啮合原理及其应用[J].机械科学与技术,1994(1):23-26
    [4]Hikizu Masatoshi, Seki Hiroaki, Kamiya Yoshitsuqu. Study on High-speed Intermittent Mechanism(Comparison Indexing Cam Mechanism With Servo-System) [C]. Japan,2002: 1191-1197
    [5]张高峰,陈华章,周玉衡,谭援强等.弧面分度凸轮机构的研究综述[J].机械工程师,2003(3):7-9
    [6]Black Ted. New Indexing Cam Mechanisms[J]. Product Engineering (New York).1979,11(50): 55-56
    [7]方代正,李素荣.新型弧面凸轮分度机构压力角分析[J].煤矿机械,2006,27(4):601-603
    [8]Tsay, D.M. and Lin, B.J. Improving the Geometry Design of Cylindrical Cams Using Nonparametric Rational B-splines Computer-Aided Design,1996,28(1):5-15
    [9]张高峰,杨世平,陈华章.弧面分度凸轮机构的研究与展望[J].机械传动,2003,27(3):1-4
    [10]王海燕,赵汝嘉,刘昌祺.弧面分度凸轮理论轮廓面的计算[J].组合机床与自动化加工技术.1999(3):12-16
    [11]殷雪艳.弧面分度凸轮机构的三维建模和数控加工[D].陕西:陕西国防工业职业技术学院,2005.6
    [12]张俊.弧面分度凸轮机构动力学建模与Simulink仿真技术的研究[J].机械设计与制造,2005(9):143-144
    [13]刘言松.基于有限元法的弧面分度凸轮机构的运动学分析与仿真[D].陕西:陕西科技大学,2004.5
    [14]王其超,肖正扬,马力敏等.弧面分度凸轮机构啮合特性的研究[J].机械设计.1993(5):34-38
    [15]李海霞.钢球滚子弧面分度凸轮机构CAD/CAM系统研宄[D].天津:天津大学,2002.6
    [16]刘青松,贺炜.弧面分度凸轮机构动力学仿真[J].现代制造工程,2006(1):118-119
    [17]石则昌,张锦慧.滚齿凸轮机构内啮合间隙的研究[J].机械设计.1989(2):12-15
    [18]王其超,马力敏,肖正扬.新型点啮合式弧面分度凸轮机构的设计与制造[J].机械科学与技术,1996,15(2):203-206
    [19]常宗瑜,张策,杨玉虎等.运用凯恩方程建立弧面分度凸轮机构的动力学模型[J].机械工程 学报,2001,37(3):34-37
    [20]程崇恭,夏尊风.高速凸轮机构动态设计的应用研究[J].机械设计与制造,2003(1):48-50
    [21]赵韩.考虑动力学特性的弧面分度凸轮机构的CAD[J].农业机械学报,1994,25(5):24-27
    [22]沈煜,杨玉虎,张策.含间隙的凸轮分度机构动力学分析[J].机械科学与技术.2001,20(5):714-715
    [23]Backhouse,C.J. and Rees Jones, J. Envelope Theory Applied to Globoidal Cam Surface Geometry Where Cutter Tool and Follower Diameter Differ[J]. Proceedings of the VDI Conference-Kurvengetriebe, Mannheim, Germany, November 1990,20(16):43-46
    [24]杨方等.弧面分度凸轮机构共轭曲面的啮合形态分析[J]机械科学与技术,1996,15(2):63-66
    [25]杨玉虎,陆锡年,张增太等.弧面分度凸轮机构的参数设计[J].机械设计,1994(5):15-19
    [26]荆菁,陶学恒,冯少岭.新型双半球形滚子齿式弧面凸轮分度机构参数化设计[J].大连轻工业学院学报,2006,25(1):60-62
    [27]Hua Qiu,Chang-Jun Lin,Zi-Ye Li. A universal optimal approach to cam curve design and its applications[J]. Mechanism and Machine Theory,2005,40(6):669-692
    [28]王其超,牟敦华,陶学横.平面包络弧面分度凸轮机构凸轮廓面方程与啮合特性的研究[J].机械设计.1998(5):11-13
    [29]王其超,陶学恒,肖正扬等.新型球面包络蜗杆分度凸轮机构的研究[J].西北轻工业学院学报1998,16(3):19-24
    [30]陶学恒,刘健,肖正扬,王其超.包络蜗杆分度凸轮机构的啮合原理及分析[J].大连理工大学学报,1999,39(5):662-666
    [31]陶学恒,肖正扬,王其超等.新型平面包络蜗杆式分度凸轮机构的原理与分析[J].机械科学与技术,2001,20(2):174-176
    [32]葛荣雨.基于NURBS的空间分度凸轮廓面创成与品质评价技术研究[D].山东大学博士学位论文,2008.05
    [33]于云满,张敏.径向蜗形凸轮机构的计算机辅助设计与制造[C],第七届机构学学术讨论会论文集,天津大学学报(增刊),1990:116-121
    [34]王其超等.ATC中多头弧面分度凸轮的计算机辅助制造[J].制造技术与机床,1994(2):8-9
    [35]陈桦等.数控铣床进行弧面分度凸轮轮廓面的精密磨削[J].机械工程师,1999(7):49-50.
    [36]陈立群等.弧面凸轮加工方法研究[J],制造技术与机床,2002(2):24-26.
    [37]赵国勇等.空间弧面凸轮数控加工程序的计算机辅助编制[J].山东工程学院学报,2002,16(3):31-33.
    [38]丁毅,曾珊琪等.在普通镗床上实现蜗形凸轮加工的专用数控转台[J].西北轻工业学院学报,1996(4):10-13.
    [39]陈立群,王海军等.大中心距弧面凸轮的数控加工[J].西北轻工业学院学报,2001,19(1):44-45
    [40]周定伍等.弧面凸轮五轴联动数控行星磨削设备应用[J].数控设备技术.2001,增刊:52-54
    [41]郝英慧,马卫华等.弧面分度凸轮廓面加工精度分析[J].吉林工业大学学报,1996(2):102-105
    [42]王海燕,赵汝嘉等.弧面分度凸轮轮廓的精密测量与误差评定[J].计量技术,1999(6):9-12
    [43]胡秉辰,郝卫国等.在三坐标机上确定弧面分度凸轮轮廓面起始点的最佳逼近法[J],计量技术,1999(6):12-15
    [44]胡秉辰,孔庆沂等.弧面分度凸轮机构精度体系的探讨[J].农业机械学报,1994,(增刊):13-16
    [45]Psang Dain Lin and Ming FarLee, Applications of D-H Notational Machining and On-Line Measurement of Roller-Gear Cams on 5-Axis Machine tools[J].Journal of Manufacturing Science and Engineering, August 1997,(119):393-401
    [46]Backhouse,C.J. and Rees Jones, J. The Application of Differential Geometry in the Computer Aided Analysis and Design of Globoidal Cam Mechanisims[C]. Proceedings of the ASME Conference, Computers in Engineering, Chicago, July 1986
    [47]Backhouse,C.J. and Rees Jones, J. Cam Follower Contact Properties in Globoidal Indexing Mechanisms[J]. Proceedings of the IFTOMM Symposium, Berlin,East Germany, April 1989
    [48]D. M. Tsay and H. C. Hb. Consideration of manufacturing parameters in the design of grooved globoidal cam indexing mechanisms[J]. Proc. Instn Mech. Engrs. Part C, Journal of Mechanical Engineering Science,2001, Vol.215
    [49]Tsay, D. M. and Hwang, G. S. The Synthesis of Follower Motions of Camoids Using Nonpa-rametric B-splines. SME Journal of Mechanical Design,1996, VOL.118
    [50]Tsay, D. M. and Lin, B. J. Improving the Geometry Design of Cylindrical Cams Using Nonparametric B-splines. Computer-Aided Design,1996, vol.28.No.1
    [51]Tsay, D. M. and Huey, C.O. Jr. Application of Rational B-splines to the Synthesis of Cam-follower Motion Programs. ASME Journal of Mechanical Design,1993, Vol.115
    [52]Hong Sen Yan and Hsin Hung Chen. Geometry Design of Globodial Cams With Generalized Meshing Turret-Roller. Journal of Mechanical Design, JUNE 1996. VOL.118
    [53]许致华,杨玉琥,樊玮.弧面分度凸轮机构智能CAD系统的研究[J].机械设计,2003,20(6):7.28
    [54]张高峰,杨世平,陈华章等.弧面分度凸轮的二维CAD[J].机械传动,2003,27(6):38-40
    [55]刘言松,贺炜,唐学飞等.弧面分度凸轮三维实体模型的建立[J].组合机床与自动化加工技术.2004(6):36-37
    [56]郝永平,裴根新,曹莉莉.弧面凸轮分度机构CAD与虚拟产品模型[J].沈阳工业学院学报,1997,16(4):15-19
    [57]方代止.基于Pro/E的弧面凸轮分度机构建模研究[J].机床与液压,2006(6):227-228
    [58]曹志奎,张保刚.空间分度凸轮机构的CAD及其压力角分析[J].传动技术,1998(4):15-22
    [59]余蔚荔.二维与三维凸轮CAD/CAM系统的研究与开发[J].广州:广东工业大学学报.2003(4):23-25
    [60]徐青,金作成,常宏敏,许传俊.圆柱分度凸轮数控加上工艺及数控系统[J].西北轻工业学院学报,1998,16(3):38-40
    [61]徐青.圆柱分度凸轮的加工控制方法[J].山东工业大学学报,1994,24(3):258-261
    [62]郭培全,黄传真.圆柱分度凸轮的数控加工及理论制造误差分析[J].机械科学与技术,2002,21(Supplement):83-86
    [63]王红岩,史锦屏,郭培全.两轴联动数控加上圆柱分度凸轮的理论制造误差分析[J].济南大学学报(自然科学版),2002,16(2):142-144
    [64]岳明君,刘宪伟.基于Pro/E的开放式圆柱凸轮CAD/CAM技术[J].工具技术,2005,39(8):59-61
    [65]曹巨江,徐光中,王茜等.空间凸轮机构从动件研究[J].机械科学与技术,2006,25(10):1238-1240
    [66]王其超,陶学恒,肖正扬等.新型球面包络蜗杆分度凸轮机构的研究[C].第三届全国凸轮机构学术研讨会,1998:19-24
    [67]Hong SenYan.Curvature Analysis of Roller-Follower Cam Mechanisms. Mathematical and Computer Modeling,1992(20):69-87
    [68]苑丛,高速间歇凸轮机构传动性能分析与研究[D].中国民航大学硕士学位论文,2007:6-12.
    [69]从明,刘静,李全普等.复杂弧面分度凸轮精确建模的新方法[J].中国机械工程,2009,20(6):669-672
    [70]张策.机械动力学[M].第二版.北京,高等教育出版社,2007:224-253
    [71]Harris T. A. Rolling Bearing Analysis. John Wiley & Sons.2000:25-59
    [72]万长森.滚动轴承的分析方法[M].北京:机械工业出版社,1987:95-99
    [73]邹慧君.凸轮机构的现代设计[M].上海:上海交通大学出版社,1991:85-92

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700