WO2013043822A3 - Compact planetary gear system with stiffened carrier, carrier assembly process, antifraction bearing and bearing assembly process - Google Patents

Compact planetary gear system with stiffened carrier, carrier assembly process, antifraction bearing and bearing assembly process Download PDF

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Publication number
WO2013043822A3
WO2013043822A3 PCT/US2012/056259 US2012056259W WO2013043822A3 WO 2013043822 A3 WO2013043822 A3 WO 2013043822A3 US 2012056259 W US2012056259 W US 2012056259W WO 2013043822 A3 WO2013043822 A3 WO 2013043822A3
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
planet
bearing
assembly process
pin
Prior art date
Application number
PCT/US2012/056259
Other languages
French (fr)
Other versions
WO2013043822A2 (en
Inventor
Gerald P. Fox
Original Assignee
The Timken Company
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 The Timken Company filed Critical The Timken Company
Publication of WO2013043822A2 publication Critical patent/WO2013043822A2/en
Publication of WO2013043822A3 publication Critical patent/WO2013043822A3/en

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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
    • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
    • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • F16C33/605—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings with a separate retaining member, e.g. flange, shoulder, guide ring, secured to a race ring, adjacent to the race surface, so as to abut the end of the rolling elements, e.g. rollers, or the cage
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii
    • F16C2240/80—Pitch circle diameters [PCD]
    • F16C2240/82—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD
    • F16C2240/84—Degree of filling, i.e. sum of diameters of rolling elements in relation to PCD with full complement of balls or rollers, i.e. sum of clearances less than diameter of one rolling element
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • 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
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H2057/085—Bearings for orbital gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

A planetary gear system (A) includes a sun gear (2), a ring gear (4), planet gears (6), and a straddle-type carrier (8) having two end walls (12, 14) and pockets (18) between them. The planet gears form part of the planet assemblies (B) that are installed as units in the pockets where the planet gears rotate in engagement with the sun and ring gears. Each planet assembly includes a pin (36) about which the planet gear rotates on a bearing (46) that is integrated into the pin and planet gear in that its raceways (48, 50) form surfaces on the planet gear and pin, thus allowing for a planet gear of reduced pitch diameter. The pin is clamped tightly between the two end walls by a cap screw (30) that extends through the pin, and this serves to further stiffen the carrier and resist carrier wind-up.
PCT/US2012/056259 2011-09-22 2012-09-20 Compact planetary gear system with stiffened carrier WO2013043822A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161537841P 2011-09-22 2011-09-22
US61/537,841 2011-09-22

Publications (2)

Publication Number Publication Date
WO2013043822A2 WO2013043822A2 (en) 2013-03-28
WO2013043822A3 true WO2013043822A3 (en) 2013-06-20

Family

ID=46970442

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/056259 WO2013043822A2 (en) 2011-09-22 2012-09-20 Compact planetary gear system with stiffened carrier

Country Status (1)

Country Link
WO (1) WO2013043822A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108253128A (en) * 2018-03-06 2018-07-06 杭州前进齿轮箱集团股份有限公司 A kind of wind turbine gearbox planetary structure

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2537240B (en) * 2013-05-16 2016-12-28 David Brown Gear Systems Ltd Planetary gear assembly
JP6329364B2 (en) * 2013-12-06 2018-05-23 日本トムソン株式会社 Linear motion guide unit with separators between rolling elements
DE102014222275A1 (en) * 2014-10-31 2016-05-04 Aktiebolaget Skf Bearing arrangement for a planetary gear
DE102015223667A1 (en) * 2015-11-30 2017-06-14 Zf Friedrichshafen Ag Planet carrier for a gear stage of a planetary gear
US10267365B2 (en) * 2015-12-11 2019-04-23 General Electric Company Power gearbox pin arrangement
DE102017008877A1 (en) * 2017-09-21 2019-03-21 Imo Holding Gmbh Tapered roller bearings
DE102017219614A1 (en) * 2017-11-06 2019-05-09 Zf Friedrichshafen Ag Planet carrier with flexible bolts
FR3076336B1 (en) * 2017-12-29 2020-09-04 Safran Trans Systems SATELLITE CARRIER FOR AN EPICYCLOIDAL GEAR REDUCER
TWI764462B (en) * 2020-12-23 2022-05-11 姚立和 Short-wheelbase and high-speed ratio gear set structure
TWI781499B (en) * 2020-12-23 2022-10-21 姚立和 Modularized coaxial gear reducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271640A (en) * 1940-05-04 1942-02-03 Jack & Heintz Inc Power transmission device
EP0238921A1 (en) * 1986-03-26 1987-09-30 Manfred Dipl.-Ing. Wittenstein Planet wheel pin for insertion into the planet carrier of a planetary gear
US4856377A (en) * 1987-01-07 1989-08-15 Pratt & Whitney Canada Inc. Planetary gear system for a gas turbine engine
JPH0326855U (en) * 1989-07-27 1991-03-19
US6770007B2 (en) * 2002-06-21 2004-08-03 The Timken Company Epicyclic drive with unified planet assemblies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0002122D0 (en) 2000-01-31 2000-03-22 Hansen Transmissions Int Gear unit
US6764219B2 (en) 2002-04-02 2004-07-20 The Timken Company Full complement antifriction bearing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271640A (en) * 1940-05-04 1942-02-03 Jack & Heintz Inc Power transmission device
EP0238921A1 (en) * 1986-03-26 1987-09-30 Manfred Dipl.-Ing. Wittenstein Planet wheel pin for insertion into the planet carrier of a planetary gear
US4856377A (en) * 1987-01-07 1989-08-15 Pratt & Whitney Canada Inc. Planetary gear system for a gas turbine engine
JPH0326855U (en) * 1989-07-27 1991-03-19
US6770007B2 (en) * 2002-06-21 2004-08-03 The Timken Company Epicyclic drive with unified planet assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108253128A (en) * 2018-03-06 2018-07-06 杭州前进齿轮箱集团股份有限公司 A kind of wind turbine gearbox planetary structure

Also Published As

Publication number Publication date
WO2013043822A2 (en) 2013-03-28

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