Speed increase in Geared Drive Train
Speed increase in Geared Drive Train
(OP)
I work for a fishing reel manufacturing company. We are developing a new prototype reel and need to develop a geared drive train that produces a 16:1 ratio (16X increase in speed) between a manual crank handle and the output pinion shaft. We are having difficulty designing this increase in speed with anything less than a two-stage or three-stage transmission.
I know that a planetary gear arrangement is often used to generate a gear reduction in shaft speed, but I was wondering if anyone knew if such an arrangement is a viable alternative to gain an increase in speed so that one revolution of the crank handle could produce up to 16 revolutions of a pinion shaft.
Any suggestions would be most appreciated.
Thank you in advance for any guidance any of you might provide!
I know that a planetary gear arrangement is often used to generate a gear reduction in shaft speed, but I was wondering if anyone knew if such an arrangement is a viable alternative to gain an increase in speed so that one revolution of the crank handle could produce up to 16 revolutions of a pinion shaft.
Any suggestions would be most appreciated.
Thank you in advance for any guidance any of you might provide!





RE: Speed increase in Geared Drive Train
Use the design approach for worm gears. Remember that the worm lead angle is calculated first, and the gear helix angle equals this worm lead angle.
RE: Speed increase in Geared Drive Train
RE: Speed increase in Geared Drive Train
Consider helical gears with very few pinion teeth. For example, say the pinion had only 3 or 4 teeth, then the gear has 48 teeth. At 20 DP, the gear is only 2.5 inches.
The pinion needs to be of a high pressure angle with the tooth tips pointed. The profile contact ratio may fall below 1, so you need helical teeth to provide continous transmission of motion. This is a specialized area of gear design.
RE: Speed increase in Geared Drive Train
RE: Speed increase in Geared Drive Train
You may wish to contact www.kleissgears.com or www.akgears.com for assistance with custom gear design, especially plastic gears.
I've worked with but I'm not affiliated with either Kleiss or AKGears in any way.
Mike
RE: Speed increase in Geared Drive Train