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GB201212578D0 - Contra-rotating transmission - Google Patents

Contra-rotating transmission

Info

Publication number
GB201212578D0
GB201212578D0 GBGB1212578.7A GB201212578A GB201212578D0 GB 201212578 D0 GB201212578 D0 GB 201212578D0 GB 201212578 A GB201212578 A GB 201212578A GB 201212578 D0 GB201212578 D0 GB 201212578D0
Authority
GB
United Kingdom
Prior art keywords
bevel gear
shafts
reversing mechanism
gear wheels
contra
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.)
Granted
Application number
GBGB1212578.7A
Other versions
GB2504072B (en
GB2504072A (en
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.)
Romax Technology Ltd
Original Assignee
Romax Technology Ltd
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 Romax Technology Ltd filed Critical Romax Technology Ltd
Priority to GB1212578.7A priority Critical patent/GB2504072B/en
Publication of GB201212578D0 publication Critical patent/GB201212578D0/en
Priority to CN2012206799813U priority patent/CN203114536U/en
Priority to PCT/GB2013/051891 priority patent/WO2014013237A1/en
Publication of GB2504072A publication Critical patent/GB2504072A/en
Application granted granted Critical
Publication of GB2504072B publication Critical patent/GB2504072B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/2854—Toothed gearings for conveying rotary motion with gears having orbital motion involving conical gears
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/0078—Connecting the upper structure to the implant, e.g. bridging bars with platform switching, i.e. platform between implant and abutment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • 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
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/2809—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears
    • F16H1/2827—Toothed gearings for conveying rotary motion with gears having orbital motion with means for equalising the distribution of load on the planet gears by allowing limited movement of the planet carrier, e.g. relative to its shaft
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • 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
    • F16H48/00—Differential gearings
    • F16H48/06—Differential gearings with gears having orbital motion
    • F16H48/08—Differential gearings with gears having orbital motion comprising bevel gears
    • F16H2048/085—Differential gearings with gears having orbital motion comprising bevel gears characterised by shafts or gear carriers for orbital gears
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Wind Motors (AREA)
  • Gear Transmission (AREA)

Abstract

A bevel gear contra-rotating transmission 100, e.g. for a wind turbine, has two shafts 106, 110 coupled to a reversing mechanism 102 which enables the shafts to be rotated at the same speed but in opposite rotational directions. The reversing mechanism 102 includes two bevel gear wheels 104,108 coupled to the two shafts 106,110, and further bevel gear wheels 112 supported by carrier 114 which engage with the two bevel gear wheels 104,108. Reversing mechanism 102 is supported by a flexible coupling means 114 between housing 122 and bevel gear carrier 114. The flexible coupling 114 comprises first and second crowned spline arrangement 118, 120 having equally spaced segments spanning 30o or teeth spanning 360o. This arrangement achieves even load sharing between gear meshes. First and second turbines are connected to the shafts 106, 110 and a generator is connected to an output side of shaft 106. In another embodiment, propellers replace the turbines and an engine replaces the generator.
GB1212578.7A 2012-07-16 2012-07-16 Contra-rotating transmission Expired - Fee Related GB2504072B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1212578.7A GB2504072B (en) 2012-07-16 2012-07-16 Contra-rotating transmission
CN2012206799813U CN203114536U (en) 2012-07-16 2012-12-05 Power transmission system for wind turbine
PCT/GB2013/051891 WO2014013237A1 (en) 2012-07-16 2013-07-15 Contra-rotating transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1212578.7A GB2504072B (en) 2012-07-16 2012-07-16 Contra-rotating transmission

Publications (3)

Publication Number Publication Date
GB201212578D0 true GB201212578D0 (en) 2012-08-29
GB2504072A GB2504072A (en) 2014-01-22
GB2504072B GB2504072B (en) 2014-08-13

Family

ID=46799646

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1212578.7A Expired - Fee Related GB2504072B (en) 2012-07-16 2012-07-16 Contra-rotating transmission

Country Status (3)

Country Link
CN (1) CN203114536U (en)
GB (1) GB2504072B (en)
WO (1) WO2014013237A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2901042B1 (en) * 2012-09-28 2016-11-02 Romax Technology Limited Power gearing system for a wind turbine
CN103850882B (en) * 2014-03-25 2016-04-20 上海电机学院 A kind of wind generating unit and electricity-generating method thereof
AU2020369806B2 (en) * 2019-10-23 2025-11-13 Vestas Wind Systems A/S Assembling or disassembling a gear assembly of a wind turbine
WO2025072972A1 (en) * 2023-09-29 2025-04-03 Linamar Corporation 3-pinion reinforced differential cross shaft support

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737886C (en) * 1939-11-15 1943-07-28 Wilhelm Stoeckicht Dipl Ing Helical planetary gear
DE927859C (en) * 1949-12-16 1955-05-20 Lucien Romani Power plant with a work machine and a wind power machine driving it
DE2558093A1 (en) * 1975-12-19 1977-06-23 Mannesmann Ag PLANETARY GEAR
GB2136084B (en) * 1983-03-01 1986-03-12 Northern Eng Ind Toothed gearing
SU1401201A1 (en) * 1986-03-17 1988-06-07 В.И.Козаренко Screw gearing
KR960007401B1 (en) * 1994-06-27 1996-05-31 신찬 Multi-unit rotor blade system integrated wind turbine
US8264096B2 (en) * 2009-03-05 2012-09-11 Tarfin Micu Drive system for use with flowing fluids having gears to support counter-rotative turbines
KR101205329B1 (en) * 2010-06-11 2012-11-28 신익 Wind Power Generator Having Triple Rotors Integrated System

Also Published As

Publication number Publication date
GB2504072B (en) 2014-08-13
GB2504072A (en) 2014-01-22
CN203114536U (en) 2013-08-07
WO2014013237A1 (en) 2014-01-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20230716