Browse Prior Art Database

Automatic Gear Pitch Line Matching

IP.com Disclosure Number: IPCOM000088778D
Original Publication Date: 1977-Aug-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Cely, JV: AUTHOR [+2]

Abstract

Smooth cylinders coaxially mounted with each of two or more gears peripherally engage at the pitch lines to prevent excessive wear and loading of the gears when they are meshed.

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Automatic Gear Pitch Line Matching

Smooth cylinders coaxially mounted with each of two or more gears peripherally engage at the pitch lines to prevent excessive wear and loading of the gears when they are meshed.

Gear 10 is rotatably driven by secured shaft 11, and is coupled by arm 12 to continuously mesh with gear 15. Gear 15 and cylinder 16 are commonly mounted on shaft 18. Gear 20 and smooth cylinder 21 are commonly mounted on shaft 22. Gears 15 and 20 are radially disengaged by appropriate means (not shown), whereas spring 25 normally urges gears 15 and 20 into radial engagement. The perimeters of 16 and 22 match the pitch lines of gears 15 and 20, respectively, to precisely limit the depth of mesh, thereby preventing overtravel or excessive mesh loading. Excessive radial mesh forces are borne by cylinders 16 and 21 rather than by the tooth faces. Cylinders 16 and 21 can be fabricated integrally with gears 15 and 20 or can be independently rotatable.

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