NDLI: Load Sharing of a Worm Gear With a Plastic Wheel

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Hiltcher, Yann Guingand, Miche`le Vaujany, Jean-Pierre De
Copyright Year	2005
Abstract	The material of the wheel in a worm-gear has to be non-rigid due to very high sliding velocity. Such gears are currently made of plastic in the case of a small module. The present paper describes an original method for studying the quasi-static loaded behavior of a worm gear, with a steel worm and a nylon wheel. Plastics are viscoelastic materials and do not obey Hooke’s law. This paper describes an elaborated method that is a generalization of Kelvin’s model. The computation also uses experimental tests to obtain data relating to the plastic. The computation of the load sharing is described and uses the equation of displacement compatibility. The history of previous deformation and the effect of the nylon’s structural damping are taken into account. At a given constant temperature, the load sharing. meshing stiffness and loaded transmission error depend on the driving torque and time, that is to say speed of rotation.
Sponsorship	Design Engineering Division and Computers and Information in Engineering Division
Starting Page	821
Ending Page	827
Page Count	7
File Format	PDF
ISBN	079184742X
DOI	10.1115/DETC2005-84670
e-ISBN	0791837661
Volume Number	Volume 5b: Power Transmission and Gearing Conference
Conference Proceedings	ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2005-09-24
Publisher Place	Long Beach, California, USA
Access Restriction	Subscribed
Subject Keyword	Damping Temperature Torque Deformation Wheels Hooke's law Steel Rotation Stress Displacement Nylon fabrics Errors Worm gears Gears Computation Stiffness Plastics Viscoelastic materials
Content Type	Text
Resource Type	Article

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Numerical and Experimental Study of Loaded Transmission Error of Worm Gear With a Plastic Wheel

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