US 8,474,347 B2Granted

High efficiency right angle gearbox

AssigneeHub City, Inc.

InventorsDavid W. Brick, Simon Odland, H. Oscar Schlenker, James Michael Campbell

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Abstract

A right angle gearbox is described that includes an enclosure, an input member, an output member, and an assembly. The enclosure has dimensions such that the gearbox is operable as a drop in replacement for a gearbox that includes a worm gear set. The input member extends from the enclosure and includes a first portion of a helical gear set housed within the enclosure. The output member extends from the enclosure and includes a second portion of a hypoid gear set housed within the enclosure. The output member is substantially orthogonal to the input member. The assembly includes a second portion of the helical gear set and a first portion of the hypoid gear set mechanically coupled to one another.

Claims21

Dependent claims

A right angle gearbox comprising:

a gear set enclosure housing a helical gear set and a hypoid gear set;
an input member extending from said enclosure and comprising a high speed portion of said helical gear set housed within said enclosure, said high speed portion of said helical gear set having a first centerline;
an output member extending from said enclosure and comprising a low speed portion of said hypoid gear set housed within said enclosure, said output member substantially orthogonal to said input member;
and
an assembly comprising a low speed portion of said helical gear set and a high speed portion of said hypoid gear set having a second centerline, said low speed portion of said helical gear set and said high speed portion of said hypoid gear set mechanically coupled to one another, said assembly positioned such that said low speed portion of said helical gear set engages said high speed portion of said helical gear set and said high speed portion of said hypoid gear set engages said low speed portion of said hypoid gear set, wherein a diameter of said high speed portion of said helical gear set is smaller than a diameter of said low speed portion of said helical gear set,
wherein said first centerline and said second centerline are aligned such that said centerlines are oriented in the same vertical plane, said output member being perpendicular to any line that can be drawn within the vertical plane.

3 more elements

A gearbox comprising:

an input member comprising a high speed portion of a helical gear set disposed thereon, said high speed portion having a first centerline;
an output member comprising a low speed portion of a hypoid gear set disposed thereon, said output member having a longitudinal axis substantially orthogonal to a longitudinal axis of said input member;
a low speed portion of said helical gear set mounted for rotatable engagement with said high speed portion of said helical gear set, wherein a diameter of said high speed portion of said helical gear set is smaller than a diameter of said low speed portion of said helical gear set;
a high speed portion of said hypoid gear set mechanically coupled to said low speed portion of said helical gear set and rotatably coupled to said low speed portion of said hypoid gear set, said high speed portion of said hypoid gear set having a second centerline;
and
a gear set enclosure housing said helical gear set and said hypoid gear set, said input member and said output member extending therefrom, wherein the longitudinal axis associated with said output member is between the rotatable coupling of the high speed and low speed portions of said helical gear set and an intersection between said input member and said enclosure, and wherein said first centerline and said second centerline are aligned such that said centerlines are oriented in the same vertical plane, said output member being perpendicular to any line that can be drawn within the vertical plane.

3 more elements

Dependencies are inferred from the claim text.