Mesh analysis and test verification on two degrees of freedom linear cutting tools enveloping worm gears

被引：0
|
作者：
Li H. [1 ]
Wei W. [1 ]
Dong X. [1 ]
机构：
[1] College of Engineering, China Agricultural University
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2011年 / 47卷 / 05期
关键词：
Degrees of freedom; Tooth contact analysis; Verification; Worm gears;
D O I：
10.3901/JME.2011.05.019
中图分类号：
学科分类号：
摘要：
In order to improve the contact quality of Hindley worm gears, a dependent linear motion along the axis of the basic member is added to the linear cutting tools besides its rotation when the Hindley worm is cut, i. e. the single degree of freedom motion of the linear cutting tools is changed into two degrees of freedom one. So a new method of manufacturing enveloping worm and a new type of enveloping worm gears, which is called two degrees of freedom linear cutting tools enveloping worm gears, are obtained. The mathematical model of meshing analysis of the worm gears is built and the formula of calculating the helical parameter of the linear cutting tools motion is given. The affecting regularities of the number of the thread of the worm and the helical parameter of the linear cutting tools motion on the undercutting line, the addendum thickness of the side tooth, the contact pattern, the length of the double line contact pattern on the worm and the micro contact quality on the worm gear are studied. A pair of worm gears is manufactured on a normal hob machine. The contact pattern test of the worm gears is carried out to verify the theoretical calculation results. The worm gears can be used with up to six threads of the worm; better contact quality and transmission performance than those of Hindley worm gears can be obtained by selecting suitable helical parameter of the linear cutting tools motion, and which has practical value. © 2011 Journal of Mechanical Engineering.
引用
收藏
页码：19 / 25
页数：6
相关论文
共 11 条
  • [1] Zak P.S., Globoidnaya Transmission, (1962)
  • [2] Qi L., Zhang Y., Li S., Et al., Design of Worm, Volume II, (1987)
  • [3] Luo J., On straight line tooth worm drive with arc surface of parabolic modification form, Chinese Journal of Mechanical Engineering, 23, 4, pp. 28-42, (1987)
  • [4] Luo J., On straight line tooth worm drive with arc surface of parabolic modification form, Chinese Journal of Mechanical Engineering, 1, 1, pp. 75-89, (1988)
  • [5] Wen Q., Research on invariable basic circle modification of hindly worm, Mechanical Design, 8, pp. 45-48, (2001)
  • [6] Dong X., Bi C., Tooth modification of double enveloping worm gearing with straight side profile, Journal of China Agricultural University, 6, 4, pp. 51-55, (2001)
  • [7] Dong X., Design and Modification Of Toroidal Worm Gearing, (2004)
  • [8] Zhou L., Curvity modification of toroidal worm, Chinese Journal of Mechanical Engineering, 38, 2, pp. 112-115, (2002)
  • [9] Zhou L., Modification Theory and Manufacturing Technology of Toroidal Worm, (2005)
  • [10] Li H., Wei W., Dong X., Theory and application of surface generated by curvilinear cutter edge with two degrees of freedom, Journal of Mechanical Engineering, 46, 9, pp. 52-58, (2010)
12