GB940024A - Improvements in or relating to mechanical gearing - Google Patents

Improvements in or relating to mechanical gearing

Info

Publication number
GB940024A
GB940024A GB41181/59A GB4118159A GB940024A GB 940024 A GB940024 A GB 940024A GB 41181/59 A GB41181/59 A GB 41181/59A GB 4118159 A GB4118159 A GB 4118159A GB 940024 A GB940024 A GB 940024A
Authority
GB
United Kingdom
Prior art keywords
driven
wheels
pinions
bevel
gear
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.)
Expired
Application number
GB41181/59A
Inventor
Kenneth Watson
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.)
Westland Group PLC
Original Assignee
Westland Aircraft 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 Westland Aircraft Ltd filed Critical Westland Aircraft Ltd
Priority to GB41181/59A priority Critical patent/GB940024A/en
Publication of GB940024A publication Critical patent/GB940024A/en
Expired 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/065—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with a plurality of driving or driven shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B64C27/12—Rotor drives
    • 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
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F16H1/14—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising conical gears only

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fertilizing (AREA)

Abstract

940,024. Driving helicopter rotors. WESTLAND AIRCRAFT Ltd. Nov. 23, 1960 [Dec. 4, 1959], No. 41181/59. Headings B7W and B7G. [Also in Division F2] In two-stage bevel reduction gearing, for the rotor 1, Fig. 1, of a helicopter, a bevel gear 2 on the rotor 1 is engaged by two pinions 3, Fig. 2, which rotate on converging axes and are coupled by resilient load-equalising quill shafts 4 to respective bevel wheels 5 engaged by a central driving pinion 13. A distance bush 6 is mounted between each pinion 3 and wheel 5. The bevel wheels have spiral teeth, the pinions 3, 5 having teeth of the same hand to balance end loads. As shown the pinion 13 is driven through flexible couplings 15, 16, free-wheel 30 and two-stage reduction gearing 18 ... 21 from an engine 22. An hydraulic disc brake 23 is provided. The helicopter tail rotor 25 is driven through the bevel gearing shown, and an oil pump 8 is driven by an extension of a quill shaft 4. A crop-spraying pump may be driven by one of the wheels 5. In a modification the gear 2 is engaged by two pairs of pinions 3 and wheels 5 driven by two engines arranged in line on diametrically opposite sides of the gear 2. In a further modification two engines 22, Fig. 4, on converging axes drive pinions 13 engaging two outer wheels 5 and a central wheel 31 driving the tail rotor 25. The gear 2 is driven by three pinions 3 coupled through respective quill shafts to the wheels 5 and 31.
GB41181/59A 1959-12-04 1959-12-04 Improvements in or relating to mechanical gearing Expired GB940024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB41181/59A GB940024A (en) 1959-12-04 1959-12-04 Improvements in or relating to mechanical gearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41181/59A GB940024A (en) 1959-12-04 1959-12-04 Improvements in or relating to mechanical gearing

Publications (1)

Publication Number Publication Date
GB940024A true GB940024A (en) 1963-10-23

Family

ID=10418473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41181/59A Expired GB940024A (en) 1959-12-04 1959-12-04 Improvements in or relating to mechanical gearing

Country Status (1)

Country Link
GB (1) GB940024A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489625A (en) * 1982-11-23 1984-12-25 Transmission Research, Inc. Split torque transmission
EP1193104A3 (en) * 2000-09-28 2004-11-17 Dana Italia S.p.A Tandem axle of simplified structure for industrial vehicles
EP1924784A1 (en) * 2005-08-17 2008-05-28 Harju-Linearwandler GBR A transmission arrangement
EP2826709A1 (en) 2013-07-16 2015-01-21 Airbus Helicopters Modular power plant and aircraft provided with a lift rotor
DE102016207696A1 (en) * 2016-05-04 2017-11-09 Zf Friedrichshafen Ag Transmission with a mechanically driven on a ring gear of the transmission pump

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489625A (en) * 1982-11-23 1984-12-25 Transmission Research, Inc. Split torque transmission
EP1193104A3 (en) * 2000-09-28 2004-11-17 Dana Italia S.p.A Tandem axle of simplified structure for industrial vehicles
EP1924784A1 (en) * 2005-08-17 2008-05-28 Harju-Linearwandler GBR A transmission arrangement
EP1924784A4 (en) * 2005-08-17 2011-10-05 Harju Linearwandler Ab A transmission arrangement
EP2826709A1 (en) 2013-07-16 2015-01-21 Airbus Helicopters Modular power plant and aircraft provided with a lift rotor
FR3008679A1 (en) * 2013-07-16 2015-01-23 Eurocopter France MODULAR AND AIRCRAFT POWER PLANT WITH SUSTENTATION ROTOR
US9346541B2 (en) 2013-07-16 2016-05-24 Airbus Helicopters Modular power plant and an aircraft provided with a lift rotor
DE102016207696A1 (en) * 2016-05-04 2017-11-09 Zf Friedrichshafen Ag Transmission with a mechanically driven on a ring gear of the transmission pump
EP3452741B1 (en) * 2016-05-04 2020-08-26 ZF Friedrichshafen AG Transmission comprising a pump mechanically driven on a ring gear of the transmission

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