PLANETARY REDUCTION GEARING

• US 3,635,103 A
• Filed: 12/23/1969
• Issued: 01/18/1972
• Est. Priority Date: 12/24/1968
• Status: Expired due to Term

• Current Assignee: Giancarlo Monti
• Original Assignee: Giancarlo Monti
• Inventors: Monti, Giancarlo
• Primary Examiner(s): McKeon, Arthur T.
• Application Number:
  US04/887,797
• Time in Patent Office: 756 Days
• Field of Search: 74/801,802 308/62
• US Class Current: 475/346
• CPC Class Codes: F16C 23/10 Bearings, parts of which are eccentrically adjustable with respect to each other
• CPC Class Codes: F16C 2361/61 Toothed gear systems, e.g. support of pinion shafts
• CPC Class Codes: F16H 1/2836 by allowing limited movement of the planets relative to the planet carrier or by using free floating planets
• CPC Class Codes: F16H 2057/0224 using eccentric bushes
• CPC Class Codes: F16H 57/082 Planet carriers

Abstract

System for mounting a planet wheel on a planet carrier wherein the axis of rotation of said wheel is concentric with the pitch circle thereof and the planet wheel is supported about an axis eccentric thereto.

Claims

1. In a planetary gear unit, the combination of a sun wheel, a ring gear, a set of planet wheels meshing with said sub wheel and with said ring gear, a planet wheel carrier adapted to be rotated in one direction when the sun wheel is driven, a set of shafts supported by said carrier, and a set of sleeves eccentrically mounted on said shafts so that the axes of the shafts are offset from the axes of said sleeves in a direction opposite to said one direction of rotation of said carrier, said planet wheels being rotatably mounted on said sleeves concentrically with the sleeve axes, the gear unit being further characterized in that said sleeves with said planet wheels thereon are eccentrically selfadjusting independently on one another on their respective shafts.

2. The planetary gear unit as defined in claim 1 together with a set of spherical bearing members provided on the respective shafts, said sleeves with their associated planet wheels being rockable on said bearing members in planes parallel to the shaft axes.

3. The planetary gear unit as defined in claim 1 together with antifriction bearing means provided between said sleeves and the respective planet wheels.