Design method of end worm gear drive, including tooth curve geometry and improved lubrication angle formula

被引：0
作者：
Cui, Jian [1 ]
Zhao, Yaping [1 ]
Meng, Qingxiang [2 ]
Hao, Zhiqiang [3 ]
机构：
[1] Northeastern Univ, Sch Mech Engn & Automat, Shenyang 110819, Peoples R China
[2] Yanshan Univ, Sch Mech Engn, Qinhuangdao 066004, Peoples R China
[3] Wuhan Univ Sci & Technol, Key Lab Met Equipment & Control Technol, Minist Educ, Wuhan 430081, Peoples R China
来源：
FRONTIERS OF MECHANICAL ENGINEERING | 2024年 / 19卷 / 06期
基金：
中国国家自然科学基金;
关键词：
end worm gear; tooth curve geometry; lubrication angle; meshing characteristic; nonlinear equation; CONTACT; GENERATION; SIMULATION;
D O I：
10.1007/s11465-024-0808-0
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
End worm gear drives are characterized by their multi-tooth contact, compact contour, and theoretical potential to overcome some inherent flaws of cylindrical worm drives. However, quantitative basic research on end worm gear drives is currently inadequate, which hinders the development of this transmission. This work focuses on the computational design of end worm gear drives and proposes a new Niemann-type design. Meshing models of the proposed drive are established, and its engagement theory is deduced systematically. Based on the derived tooth surface equations, an innovative research methodology for the tooth curve geometry of the end worm gear is created, and the tooth curve in the worm gear reference plane is proved to be a spiral. An improved formula for the lubrication angle is developed, which can provide more rational numerical results for the angle. Theoretically, the modified formula is universally applicable for line contact drives and can be used to quantitatively investigate the lubrication level between the teeth for the proposed drive. Simulation outcomes demonstrate the favorable characteristics of the transmission, including broad conjugate areas, even contact lines, and fine global lubrication state.
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页数：18
相关论文
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