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WO2019104410A1 - Entraînement coaxial sans orbite - Google Patents

Entraînement coaxial sans orbite Download PDF

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Publication number
WO2019104410A1
WO2019104410A1 PCT/CA2017/051439 CA2017051439W WO2019104410A1 WO 2019104410 A1 WO2019104410 A1 WO 2019104410A1 CA 2017051439 W CA2017051439 W CA 2017051439W WO 2019104410 A1 WO2019104410 A1 WO 2019104410A1
Authority
WO
WIPO (PCT)
Prior art keywords
offset
axis
central
central axis
carrier
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CA2017/051439
Other languages
English (en)
Inventor
Leo STOCCO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orbitless Drives Inc
Original Assignee
Orbitless Drives Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orbitless Drives Inc filed Critical Orbitless Drives Inc
Priority to EP17933642.5A priority Critical patent/EP3538787A4/fr
Priority to CN201780083318.2A priority patent/CN110177957A/zh
Priority to PCT/CA2017/051439 priority patent/WO2019104410A1/fr
Priority to US16/349,564 priority patent/US20200263764A1/en
Priority to US16/484,051 priority patent/US20190353240A1/en
Priority to CN201880013414.4A priority patent/CN110475987A/zh
Priority to EP18757289.6A priority patent/EP3586036A4/fr
Priority to PCT/CA2018/050191 priority patent/WO2018152625A1/fr
Publication of WO2019104410A1 publication Critical patent/WO2019104410A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members

Definitions

  • the disclosure herein relates to a drive comprising a plurality of gears or other engaging members. More particularly, it relates to an apparatus providing two members that rotate at different rates.
  • An orbitless drive comprises a central pinion (sun) and a group of offset pinions (planets) which circulate on a pair of carriers.
  • the central pinion may engage the offset pinions either directly or through a coupling, as disclosed in the prior art.
  • the central pinion and carrier may be attached to an externally supported rotating shaft.
  • This external support may be sufficient to provide alignment, mechanical support and rotatably coupling, thereby eliminating the need for explicit support and rotatable coupling within the orbitless drive.
  • the exemplary embodiments disclosed herein depict an orbitless drive with no explicit mechanical support or rotatable coupling of the central pinion or carrier. This results in fewer parts, reduced cost, a smaller envelope, and allows the pinions to self-align for reduced friction, higher efficiency and longer life.
  • Certain exemplary embodiments disclosed herein include offset pinions with a second offset axis that is rotatably coupled with a second offset carrier. This result in lower internal forces and improved inertial balance when the case is permitted to rotate.
  • Certain exemplary embodiments comprise a reference member (79), a central carrier (9), a first offset carrier (19) and two or more offset members (39), each defining a central axis (70,0,10,30), wherein the reference member (79) and all offset members (39) each comprise a first offset axis (71,31) which is substantially parallel to, and spaced a first offset distance (91) apart from the corresponding central axis (70,30), the central carrier (9) and first offset carrier (19) each comprise a plurality of first radial axes (1,11) which are all substantially parallel to, spaced a first radial distance (93) apart from, and arranged circumferentially around the corresponding central axis (0,10), each offset member (39) central axis (30) and a different central carrier (9) first radial axis (1) are rotatably coupled (80), each offset member (39) first offset axis (31) and a different first offset carrier (19) first radial axis (11) are rotatably coupled
  • Certain exemplary embodiments further comprise a second offset carrier (29) defining a central axis (20) and wherein, the reference member (79) and all offset members (39) each further comprise a second offset axis (72,32) which is substantially parallel to, and spaced a second offset distance (92) apart from the corresponding central axis (70,30), the second offset carrier (29) comprises a plurality of first radial axes (21) which are all substantially parallel to, spaced a first radial distance (93) apart from, and arranged circumferentially around the central axis (20), each offset member (39) second offset axis (32) and a different first radial axis (21) are rotatably coupled (82), and the central axis (20) and reference member (79) second offset axis (72) are rotatably coupled (84).
  • Certain exemplary embodiments further comprise a first central member (41) which simultaneously engages (89) all offset members (39).
  • Certain exemplary embodiments further comprise a second central member (42) and one or more coupling members (59) wherein each coupling member (59) simultaneously engages (88,87) one or more offset members (39) and the second central member (42).
  • the central carrier (9) further comprises a number of second radial axes (2) equal to the number of coupling members (59), all second radial axes (2) are substantially parallel to, spaced a second radial distance (94) apart from, and arranged circumferentially around the central axis (0), and each coupling member (59) defines a central axis (50) which is rotatably coupled (85) with a different second radial axis (2).
  • Fig 1 is a schematic side and front view in accordance with a first exemplary embodiment depicting the present invention.
  • Fig 2 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a second offset carrier (29).
  • FIG 3 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a first central member (41).
  • Fig 4 is a schematic side and front and front view in accordance with the first exemplary embodiment further comprising a second offset carrier (29) and a first central member (41).
  • FIG 5 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a plurality of flexible coupling members (59) and a second central member (42).
  • FIG 6 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a second offset carrier (29), a plurality of flexible coupling members (59) and a second central member (42).
  • FIG 7 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a plurality of coupling members (59) and a second central member (42).
  • FIG 8 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a second offset carrier (29), a plurality of coupling members (59) and a second central member (42).
  • FIG 9 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a plurality of coupling members (59), a first central member (41) and a second central member (42).
  • FIG 10 is a schematic side and front view in accordance with the first exemplary embodiment further comprising a second offset carrier (29), a plurality of coupling members (59), a first central member (41) and a second central member (42).
  • Fig 11 is a perspective view of two exemplary offset member (39).
  • Fig 12 is a schematic side view in accordance with a first exemplary practical implementation of the present invention.
  • Fig 13 is a schematic side view in accordance with a second exemplary practical implementation of the present invention.
  • a gear, sprocket, pulley, friction or magnetic coupling, or any other type of member that engages and transmits power to a mate is defined as an engaging member.
  • An engaging member that engages on its exterior surface is defined as a pinion.
  • An engaging member that engages on its interior surface is defined as a ring.
  • a cable drive comprising two counter-acting, pre-loaded cables that are fixedly attached to two pulleys, is defined as a capstan cable coupling.
  • a chain, belt, cable, or any other means that changes shape while engaging two or more engaging members is defined as a flexible coupling.
  • a flexible coupling that simultaneously engages three or more engaging members is defined as a serpentine coupling.
  • An apparatus that scales the relative speed and torque of two rotating members is defined as a drive, which may or may not comprise any gears.
  • a drive that reduces velocity and amplifies torque is defined as a reduction drive.
  • a drive that amplifies velocity and reduces torque is defined as an overdrive drive.
  • a drive that may function as either a reduction or an overdrive drive is defined as back- drivable.
  • a drive that may function as a reduction drive but not as an overdrive is defined as self- locking.
  • spur gears are depicted in the accompanying drawings, it is understood that many other engaging means would suffice, such as conical, radial, offset, spiral, helical, double helical, herring-bone, or roller tooth gears, friction or magnetic couplings, chains and sprockets, or capstan cable couplings. It is also understood that associated gears may comprise any face width, tooth profile, pressure angle, or module and may be made from metal, plastic, or any other appropriate material.
  • a coupling member (59) is depicted as a pinion in the accompanying drawings, it is understood that it may be often be replaced by a flexible coupling member and that a plurality of flexible coupling members may often be replaced by a serpentine coupling member.
  • each offset member (39) is depicted in the accompanying drawings as comprising a single central rotatable coupling (80), it is understood that a second central rotatable coupling (80) could be added to the opposite side for symmetry.
  • offset members (39) are depicted in the accompanying drawings as being substantially equivalent, it is understood that neighboring offset members (39) may comprise gear teeth that are out of phase with the first and second offset axes (31,32) to improve assemble-ability.
  • first and second radial axes (1,2,11,21) are depicted in the accompanying drawings as being circumferentially equally spaced around the corresponding central axis (0,10,20), it is understood that they may be unequally spaced, although vibration may result.
  • a back-drivable drive may provide either reduction or overdrive gearing by interchanging the roles of its high-speed and low-speed members.
  • the roles of the reference, high-speed member and low-speed member may all be interchanged to obtain a desired reduction or overdrive ratio, or to cause the associated members to rotate in the same or opposite directions.
  • a differential mechanism is obtained. Reduction, overdrive, differential, and reverse drives are all contemplated.
  • any one of the reference member (79), any central member (41,42), any offset member (39), or any carrier (9,19,29) may act as a reference, input or output member.
  • Fig 1 illustrates a first exemplary embodiment of the present invention.
  • the first exemplary embodiment comprises a reference member (79), a central carrier (9), a first offset carrier (19) and two or more offset members (39).
  • the reference member (79) comprises a central axis (70) and a first offset axis (71).
  • the first offset axis (71) is substantially parallel to, and spaced a first offset distance (91) apart from the central axis (70).
  • Each offset member (39) comprises a central axis (30) and a first offset axis (31).
  • Each first offset axis (31) is substantially parallel to, and spaced the first offset distance (91) apart from the corresponding central axis (30).
  • the central carrier (9) comprises a central axis (0) and a number of first radial axes (1) equal to the number of offset members (39). [59] All first radial axes (1) are substantially parallel to, spaced a first radial distance (93) apart from, and arranged circumferentially around the central axis (0).
  • the first offset carrier (19) comprises a central axis (10) and a number of first radial axes (11) equal to the number of offset members (39).
  • All first radial axes (11) are substantially parallel to, spaced the first radial distance (93) apart from, and arranged circumferentially around the central axis (10).
  • Each central axis (30) is substantially co-axial, and rotatably coupled (80) with a different first radial axis (1).
  • Each first offset axis (31) is substantially co-axial, and rotatably coupled (81) with a different first radial axis (11).
  • the central axis (10) is substantially co-axial, and rotatably coupled (83) with the first offset axis (71).
  • FIG 2 illustrates a second exemplary embodiment of the present invention which comprises the features of the first exemplary embodiment and further comprises a second offset carrier (29).
  • the reference member (79) further comprises a second offset axis (72) which is substantially parallel to, and spaced a second offset distance (92) apart from the central axis (70).
  • Each offset member (39) further comprises a second offset axis (32) which is substantially parallel to, and spaced the second offset distance (92) apart from the corresponding central axis (30).
  • the second offset carrier (29) comprises a central axis (20) and a number of first radial axes (21) equal to the number of offset members (39).
  • All first radial axes (21) are substantially parallel to, spaced the first radial distance (93) apart from, and arranged circumferentially around the central axis (20).
  • Each second offset axis (32) is substantially co-axial, and rotatably coupled (82) with a different first radial axis (21).
  • the central axis (20) is substantially co-axial, and rotatably coupled (84) with the second offset axis (72).
  • FIG 3 illustrates a third exemplary embodiment of the present invention which comprises the features of the first exemplary embodiment and further comprises a first central member (41) which simultaneously engages (89) all offset members (39).
  • Fig 4 illustrates a fourth exemplary embodiment of the present invention which combines the unique features of the first, second and third exemplary embodiments.
  • FIG 5 illustrates a fifth exemplary embodiment of the present invention which combines the features of the first exemplary embodiment and further comprises a second central member (42) and a number of flexible coupling members (59) equal to the number of offset members (39).
  • the second central member (42) is substantially co-axial with the central axis (70) and simultaneously engages (87) all flexible coupling members (59) which each engage (88) a different offset member (39).
  • Fig 6 illustrates a sixth exemplary embodiment of the present invention which combines the unique features of the first, second and fifth exemplary embodiments.
  • FIG 7 illustrates a seventh exemplary embodiment of the present invention which combines the features of the first exemplary embodiment and further comprises a second central member (42) and a number of coupling members (59) equal to the number of offset members (39).
  • the second central member (42) is substantially co-axial with the central axis (70) and simultaneously engages (87) all coupling members (59) which each engage (88) a different offset member (39).
  • the central carrier (9) further comprises a number of second radial axes (2) equal to the number of coupling members (59).
  • All second radial axes (2) are substantially parallel to, spaced a second radial distance (94) apart from, and arranged circumferentially around the central axis (0).
  • Each coupling member (59) further comprises a central axis (50) which is substantially co-axial, and rotatably coupled (85) with a different second radial axis (2).
  • Fig 8 illustrates an eighth exemplary embodiment of the present invention which combines the unique features of the first, second and seventh exemplary embodiments.
  • Fig 9 illustrates a ninth exemplary embodiment of the present invention which combines the unique features of the first, third and seventh exemplary embodiments.
  • Fig 10 illustrates a tenth exemplary embodiment of the present invention which combines the unique features of the first, second, third and seventh exemplary embodiments.
  • Fig 11 depicts two exemplary offset members (39a, 39b) that may be included in the second, fourth, eighth, or tenth exemplary embodiment of the present invention.
  • Each offset member (39a, 39b) comprises a symmetric central shaft (33) that is co-axial with the central axis (30).
  • One offset member (39a) illustrates a first offset shaft (34) that is co-axial with the first offset axis (31), and a second offset shaft (35) that is co-axial with the second offset axis (32).
  • the other offset member (39b) illustrates a first offset bore (36) that is co-axial with the first offset axis (31), and a second offset bore (37) that is co-axial with the second offset axis (32).
  • Fig 12 illustrates a first exemplary practical application of an orbitless drive (100) that corresponds to the fourth exemplary embodiment of the present invention.
  • the first exemplary practical application comprises a motor (101), an orbitless drive (100) and a planetary drive (102).
  • the reference members (79) of the motor (101), oribitless drive (100), and planetary drive (102) are all integral.
  • the output shaft (113) of the motor (101) and the first central member (41) of the orbitless drive (100) are co-axial and integral.
  • the input shaft (114) of the planetary drive (102) and the central carrier (9) of the orbitless drive (100) are co-axial and integral.
  • FIG 13 illustrates a second exemplary practical application of an orbitless drive (100) that corresponds to the fourth exemplary embodiment of the present invention.
  • the second exemplary practical application comprises an orbitless drive (100), an activate-able clutch (111), an activate-able brake (112), a high-speed drive-shaft (113), and a low-speed drive-shaft (114).
  • the high-speed drive-shaft (113) and first central member (41) are co-axial and integral.
  • the low-speed drive-shaft (114) and central carrier (9) are co-axial and integral.
  • the central axes (0,70) are substantially co-axial due to mechanical constraints imposed by the first and second offset carriers (19,29).
  • the central axes (0,70) are substantially co-axial due to mechanical constraints imposed by the first and second offset carriers (19,29).
  • the first central member (41) and central axis (70) are substantially co-axial due to mechanical constraints imposed by the engagements (89).
  • a seventh example considers the seventh exemplary embodiment illustrated in Fig 7.
  • the second central member (42) and central axis (70) are substantially co-axial due to mechanical constraints imposed by the engagements (87).
  • Each offset member (39) simultaneously engages (88) a coupling member (59) which engages (87) the second central member (42), causing it to rotate at a different rate than the central carrier (9).
  • the first central member (41) and central axis (70) are substantially co-axial due to mechanical constraints imposed by the engagements (89).
  • the second central member (42) and central axis (70) are substantially co-axial due to mechanical constraints imposed by the engagements (87).
  • Each offset member (39) simultaneously engages (88) a coupling member (59) which engages (87) the second central member (42), causing it to rotate at a different rate than the central carrier (9).
  • Both offset members (39a, 39b) comprise a symmetric pair of central shafts (33) providing the male component of the rotatable coupling (80) on the central axis (30).
  • One offset member (39a) comprises offset shafts (34,35) providing the male components of the rotatable couplings (81,82) on the first and second offset axes (31,32).
  • the other offset member (39b) comprises offset bores (36,37) providing the female components of the rotatable couplings (81,82) on the first and second offset axes (31,32).
  • the drive- shaft (113) of the motor (101) provides co-axial alignment and rotatable coupling between the first central member (41) and the central axis (70) of the reference member (79).
  • the drive- shaft (114) of the planetary drive (102) provides co-axial alignment and rotatable coupling between the central axis (0) of the first central carrier (9) and the central axis (70) of the reference member (79).
  • Certain exemplary embodiments require fewer bearings than a conventional orbitless drive.
  • Certain exemplary embodiments are less expensive to produce than a conventional orbitless drive.
  • Certain exemplary embodiments have a smaller envelope than a conventional orbitless drive.
  • Certain exemplary embodiments provide improved load sharing than a conventional orbitless drive.
  • Certain exemplary embodiments have a higher torque capacity than a conventional orbitless drive.
  • Certain exemplary embodiments develop less vibration when the entire assembly is rotated than a conventional orbitless drive.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

La présente invention concerne un entraînement coaxial sans orbite comprenant un ou deux supports décalés couplés de manière rotative au boîtier et un support central qui ne l'est pas. Grâce à un tel agencement, le coût, la complexité et l'encombrement sont réduits à un minimum. De plus, un tel agencement permet un auto-alignement du support central par rapport à un élément central supporté de manière externe afin d'obtenir un frottement minimal et un partage de charge optimal. Le second support décalé permet un équilibrage inertiel et réduit les forces internes de façon à accroître une capacité de couple et une densité de puissance. La présente invention est bien adaptée à des applications qui nécessitent des axes en ligne et une densité de couple élevée et à des applications automobiles à vitesses multiples qui utilisent des embrayages et des freins pour solidariser ou désolidariser des étages de réduction et/ou d'inversion.
PCT/CA2017/051439 2016-12-13 2017-11-29 Entraînement coaxial sans orbite Ceased WO2019104410A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP17933642.5A EP3538787A4 (fr) 2017-11-29 2017-11-29 Entraînement coaxial sans orbite
CN201780083318.2A CN110177957A (zh) 2017-11-29 2017-11-29 同轴无轨传动装置
PCT/CA2017/051439 WO2019104410A1 (fr) 2017-11-29 2017-11-29 Entraînement coaxial sans orbite
US16/349,564 US20200263764A1 (en) 2016-12-13 2017-11-29 Coaxial orbitless drive
US16/484,051 US20190353240A1 (en) 2017-02-22 2018-02-20 Multi-Speed Orbitless Drive
CN201880013414.4A CN110475987A (zh) 2017-02-22 2018-02-20 多速无轨传动装置
EP18757289.6A EP3586036A4 (fr) 2017-02-22 2018-02-20 Entraînement sans orbite à plusieurs vitesses
PCT/CA2018/050191 WO2018152625A1 (fr) 2017-02-22 2018-02-20 Entraînement sans orbite à plusieurs vitesses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2017/051439 WO2019104410A1 (fr) 2017-11-29 2017-11-29 Entraînement coaxial sans orbite

Publications (1)

Publication Number Publication Date
WO2019104410A1 true WO2019104410A1 (fr) 2019-06-06

Family

ID=66663708

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA2017/051439 Ceased WO2019104410A1 (fr) 2016-12-13 2017-11-29 Entraînement coaxial sans orbite

Country Status (3)

Country Link
EP (1) EP3538787A4 (fr)
CN (1) CN110177957A (fr)
WO (1) WO2019104410A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB430054A (en) * 1934-05-09 1935-06-12 John Richard Kenny Improvements in or relating to variable speed gearing
WO2016026032A1 (fr) * 2014-05-12 2016-02-25 Stocco Leo J Boîte de vitesses sans engrenage orbital
WO2016037271A1 (fr) 2014-09-10 2016-03-17 Stocco Leo Boîte de vitesses hybride sans orbite

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833567A (en) * 1997-03-26 1998-11-10 Fernandez; Angel Inertial power transmission
US8747274B2 (en) * 2012-11-08 2014-06-10 Gm Global Technology Operations, Llc Triple clutch multi-speed transmission
US20140200109A1 (en) * 2013-01-14 2014-07-17 Leo James Stocco Planetary Gear Pump
US9829084B2 (en) * 2014-06-27 2017-11-28 GM Global Technology Operations LLC Integrated gear assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB430054A (en) * 1934-05-09 1935-06-12 John Richard Kenny Improvements in or relating to variable speed gearing
WO2016026032A1 (fr) * 2014-05-12 2016-02-25 Stocco Leo J Boîte de vitesses sans engrenage orbital
US9970509B2 (en) 2014-05-12 2018-05-15 Leo J. Stocco Orbitless gearbox
WO2016037271A1 (fr) 2014-09-10 2016-03-17 Stocco Leo Boîte de vitesses hybride sans orbite
US10247278B2 (en) 2014-09-10 2019-04-02 Orbitless Drives Inc Hybrid orbitless gearbox

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3538787A4

Also Published As

Publication number Publication date
EP3538787A4 (fr) 2020-04-29
CN110177957A (zh) 2019-08-27
EP3538787A1 (fr) 2019-09-18

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