NDLI: Tooth Contact Analysis and Manufacture on Multi-Tasking Machine of Large-Sized Straight Bevel Gears

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Kawasaki, Kazumasa Tsuji, Isamu Gunbara, Hiroshi
Copyright Year	2011
Abstract	Straight bevel gears are widely used in the plant of large-sized power generation when the gears have large size. The purpose of this study is to manufacture the large-sized straight bevel gears with equi-depth on multi-tasking machine. The manufacturing method has the advantages of arbitrary modification of the tooth surface and machining of the part without the tooth surface. For this study, first the mathematical model of straight bevel gears by complementary crown gears considering manufacture on multi-tasking machine is proposed, and the tooth contact pattern and transmission errors of these straight bevel gears with modified tooth surfaces are analyzed in order to clarify the meshing and contact of these gears. Next, the numerical coordinates on the tooth surfaces of the bevel gears are calculated and the tooth profiles are modeled using a 3D-CAD system. 5-axis control machines were utilized. The gear-work was machining by a swarf cutting using a coated carbide end mill. After rough cutting, the gear-work was heat-treated, and it was finished based on a CAM process through the calculated numerical coordinates. The pinion was also machined similarly. The real tooth surfaces were measured using a coordinate measuring machine and the tooth flank form errors were detected using the measured coordinates. As a result, the obtained tooth flank form errors were small. In addition, the tooth contact pattern of the manufactured large-sized straight bevel gears was compared with those of tooth contact analysis. As a result, there was good agreement.
Sponsorship	Design Engineering Division and Computers and Information in Engineering Division
Starting Page	63
Ending Page	71
Page Count	9
File Format	PDF
ISBN	9780791854853
DOI	10.1115/DETC2011-48760
Volume Number	Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and Tire Technologies
Conference Proceedings	ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
Language	English
Publisher Date	2011-08-28
Publisher Place	Washington, DC, USA
Access Restriction	Subscribed
Subject Keyword	Machining Scrap metals Surface roughness Machinery Errors Cutting Coordinate measuring machines Heat Gears Three-dimensional computer-aided design Bevel gears Energy generation Manufacturing
Content Type	Text
Resource Type	Article

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