124 Driving Performance of High Reduction Planetary Gear Drive with Arc Tooth Profile and Pin

2007 ◽  
Vol 2007 (0) ◽  
pp. 103-106
Author(s):  
Kazuteru NAGAMURA ◽  
Kiyotaka IKEJO ◽  
Eiichirou TANAKA ◽  
Toshiyuki KOUMORI ◽  
Takamasa HIRAI ◽  
...  
Keyword(s):  
Planetary Gear ◽  
Driving Performance ◽  
Tooth Profile ◽  
Gear Drive ◽  
High Reduction

Driving Performance of High Reduction Planetary Gear Drive With Meshing of Arc Tooth Profile Gear and Pin Roller

2007 ◽  
Author(s):  
Kazuteru Nagamura ◽  
Kiyotaka Ikejo ◽  
Eiichirou Tanaka ◽  
Takamasa Hirai ◽  
Toshiyuki Koumori ◽  
...  
Keyword(s):  
High Efficiency ◽  
Planetary Gear ◽  
Transmission Error ◽  
Driving Performance ◽  
Tooth Profile ◽  
Vibration Acceleration ◽  
Gear Noise ◽  
Gear Drive ◽  
New Type ◽  
High Reduction

This paper describes a new type planetary gear drive with the high reduction ratio. The planetary gear drive is mechanically similar to a 2S-C type planetary gear, which has two sun gears and one carrier. The planetary gear drive has two pairs of an arc tooth profile gear and a pin roller, which mesh each other. The planetary gear drive has little backlash, a high efficiency, a long fatigue limit, etc., because the tooth contact holds on concave and convex surfaces. In this study, we measured the vibration acceleration, the transmission error, the gear noise, and the efficiency on the new type planetary gear drive by the running test. We discuss and report the driving performance of the planetary gear drive.

Performance of a High-Reduction Planetary Gear Drive with Respect to Efficiency

1987 ◽  
Vol 201 (4) ◽  
pp. 293-297 ◽  
Author(s):  
S Bekircan
Keyword(s):  
High Speed ◽  
Planetary Gear ◽  
General Analysis ◽  
Speed Ratio ◽  
Gear Drive ◽  
Number Of Factors ◽  
Internal Forces ◽  
High Reduction ◽  
Increase Efficiency

This paper presents some of the general practical problems involved in the design of a high-reduction compound planetary gear drive and examines such a drive for high speed ratio, power circulation and efficiency. The performance of the drive with respect to efficiency of 50–60 per cent has been obtained under various running conditions such as speed, load and temperature. An attempt was also made to balance internal forces in order to increase efficiency. At first sight, the number of factors involved appears to make it impossible for a general analysis of the problem to be made, but broad conclusions have been drawn.

Effect of tooth waist order parameters of double involute gears on lubrication performance of gear drive

2016 ◽  
Vol 68 (6) ◽  
pp. 671-675 ◽  
Author(s):  
Zhimin Fan ◽  
Wanfeng Zhou ◽  
Ruixue Wang ◽  
Na Wang
Keyword(s):  
Elastohydrodynamic Lubrication ◽  
Reference Value ◽  
Tooth Profile ◽  
Order Parameters ◽  
Content Type ◽  
Oil Film ◽  
Gear Drive ◽  
Involute Gear ◽  
Lubrication Performance ◽  
Involute Gears

Purpose The purpose of this paper is to derive a new lubrication model of double involute gears drive and study the effect of the tooth waist order parameters of double involute gears on lubrication performance. Design/methodology/approach The new lubrication model of double involute gears drive was established according to the meshing characteristics of double involute gears drive and the finite length line contact elastohydrodynamic lubrication theory. Numerical calculation of the lubrication model of gear drive was conducted using the multigrid method. Findings The results show that the oil film necking phenomenon and the oil film pressure peak emerged at the tooth waist order area and the tooth profile ends, and when compared with involute gear, the lubrication performance at the tooth waist order area is better than that at the tooth profile ends. The effect of tooth waist order parameters on lubrication performance at the tooth waist order area was greater than that at other areas. Originality/value This research will promote the application of the double involute gear as soon as possible, and it has the reference value for other types of gears.

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