公开(公告)号：US10250101B2

公开(公告)日：2019-04-02

申请号：US15316567

申请日：2015-06-08

Applicant: NORTHEASTERN UNIVERSITY

Inventor： Elias Brassitos ,  Brian Weinberg ,  Qingchao Kong ,  Constantinos Mavroidis

IPC: H02K7/10 ,  H02K7/116 ,  F16H1/28 ,  H02K5/20 ,  H02K9/22 ,  H02K9/10 ,  H02K11/215 ,  B25J9/10 ,  F16C19/54 ,  F16H57/08

Abstract: A balanced planetary gearbox including an assembly having an input stage and an output stage. The assembly includes two grounds, each with ground rollers and ground rings. The two grounds are fixedly attached to one another. The assembly includes a sun gear and planet sub-assemblies between the two grounds. The planet sub-assemblies include at least one input planet gear and one output planet gear. The sun gear and the input planet gears include rollers. An abutment of rollers in the gearbox keeps the sun gear and the planet gears in alignment. The output gear meshes with an output ring disposed in between the two ground rings, such that a combination of the at least one input planet gears from each of the plurality of planet sub-assemblies provides a structural symmetry to the planetary gearbox.

公开(公告)号：US10174810B2

公开(公告)日：2019-01-08

申请号：US14779272

申请日：2014-03-24

Applicant: Northeastern University

Inventor： Elias Brassitos ,  Brian Weinberg ,  Qingchao Kong ,  Constantinos Mavroidis

IPC: F16H1/28 ,  F16H57/02 ,  F16H1/46 ,  H02K21/22 ,  H02K7/116 ,  F16H57/00

Abstract: In some embodiments, systems and methods are described for a gear contact system configured to support radial, thrust, and moment loads, the system comprising a first gear comprising a first roller having a first roller bearing surface, the first roller bearing surface having a convex curvature defined by a first radius of curvature; and a second gear comprising a second roller having a second roller bearing surface, the second roller bearing surface having a concave curvature defined by a second radius of curvature.

公开(公告)号：US20160290490A1

公开(公告)日：2016-10-06

申请号：US15037991

申请日：2014-12-08

Applicant: NORTHEASTERN UNIVERSITY

Inventor： Elias Brassitos ,  Constantinos Mavroidis ,  Quingchao Kong

IPC: F16H57/08 ,  F16H1/28

CPC classification number: F16H57/08 ,  F16H1/28 ,  F16H57/02004 ,  F16H57/082 ,  F16H2001/324 ,  F16H2057/085

Abstract: The present disclosure provides a gear set. The gear set includes a ring gear including a plurality of ring gear teeth on an inner radial edge of the ring gear and an arcuate ring roller positioned axially outward of the ring gear teeth. The gear set includes a sun gear having a plurality of sun gear teeth positioned about an outer radial sun gear edge and an arcuate sun gear roller positioned axially outward of the sun gear teeth. The gear set includes a planetary gear positioned in the ring gear between the sun gear and the ring gear. The planetary gear includes a plurality of planetary gear teeth positioned about an outer radial planetary gear edge. The plurality of planetary gear teeth engage the sun gear teeth and the ring gear teeth. The planetary gear includes an arcuate planetary gear roller positioned axially outward of the planetary gear teeth. The arcuate planetary gear roller engages the arcuate ring roller and the arcuate sun gear roller.

Abstract translation: 本公开提供了一种齿轮组。 该齿轮组包括齿圈，该齿圈包括在齿圈的内径向边缘上的多个齿圈齿轮和位于齿圈齿轮的轴向外侧的弧形环形滚子。 齿轮组包括具有围绕外径向太阳齿轮边缘定位的多个太阳齿轮的太阳齿轮和位于太阳齿轮齿轴向外侧的弧形太阳齿轮。 齿轮组包括位于太阳齿轮和齿圈之间的齿圈中的行星齿轮。 行星齿轮包括围绕外径向行星齿轮边缘定位的多个行星齿轮齿。 多个行星齿轮齿接合太阳齿轮齿和齿圈齿。 行星齿轮包括一个位于行星齿轮齿轴向外侧的弓形行星齿轮。 弧形行星齿轮滚子与弧形环形滚轮和弧形太阳齿轮滚子接合。