GB2388876A - Gear lubricant/grease retention arrangement - Google Patents

Gear lubricant/grease retention arrangement Download PDF

Info

Publication number
GB2388876A
GB2388876A GB0211534A GB0211534A GB2388876A GB 2388876 A GB2388876 A GB 2388876A GB 0211534 A GB0211534 A GB 0211534A GB 0211534 A GB0211534 A GB 0211534A GB 2388876 A GB2388876 A GB 2388876A
Authority
GB
United Kingdom
Prior art keywords
gear
housing
lubricant
brushes
grease
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.)
Withdrawn
Application number
GB0211534A
Other versions
GB0211534D0 (en
Inventor
Jamie A Mcmullin
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB0211534A priority Critical patent/GB2388876A/en
Publication of GB0211534D0 publication Critical patent/GB0211534D0/en
Publication of GB2388876A publication Critical patent/GB2388876A/en
Withdrawn legal-status Critical Current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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0493—Gearings with spur or bevel gears
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • 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
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0463—Grease lubrication; Drop-feed lubrication
    • F16H57/0464—Grease lubrication
    • 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
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/12—Gearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

First and second pinion gear elements 2, 4 are arranged so as to have an engagement/interface region 6 and brush/scraper seal means 12 which assists in retaining the lubricant/grease within interface region 6 by effectively brushing one of the gears 2 as it moves relative to the other gear 4. A housing which incorporates this arrangement is also disclosed where by similar means, lubricant/grease is kept within the housing during the movement of one gear relative to the other.

Description

( 1 2388876
GEAR REGREASING AND GREASE RE-DISTRIBUTION SYSTEM
The present invention relates to lubrication of the interface between two gears. In particular, the present invention relates to the efficient use of lubricant at the interface between a pinion gear and a large diameter geared ring.
According to the present invention there is provided an arrangement to provide effective lubrication of an interface between a first gear and a second gear comprises sealing means adapted to retain a lubricant in the vicinity of the interface.
According to a further aspect of the present invention a housing, which substantially surrounds an interface between a first gear and a second gear, is provided with at least one aperture to permit relative movement between the second gear and the housing wherein the at least one aperture is provided with sealing means is adapted to remove lubricant from the teeth of the gear ring and retain it within the housing.
Figure 1 shows, schematically, a first pinion gear 2 used to turn a second large diameter gear ring, 4. At the engagement region 6 between the pinion gear 2 and gear ring 4, a lubricant (not shown) is used to lubricate the interaction between the two components 2,4.
Figure 2 shows a different view of the pinion gear ring assembly equipped with a housing 8 according to the present invention. The housing 8, preferably made of a titanium alloy, surrounds the pinion gear 2, and has a first aperture 10 and a second aperture (not shown) to facilitate movement of the ring gear 4 through the housing 8.
The housing 8 is open at its lower face 11, and so does not fully enclose that part of the ring gear between apertures 10. The apertures 10 are equipped with brushes 12 made, preferably from 0.002" Haines 25 wire.
Turning now to Figure 3, the brushes 12 are shown without the housing 8 for clarity.
The brushes 12 are wider than the gear ring 4 and extend from a pitch circle diameter
- 2 ( 14 greater than that of the gear ring 4 to a pitch circle diameter 16 approximately the mid height of the teeth on the gear ring 4. Further seals (not shown) are provided to seal any other gaps between the housing 8 and the gear ring 4. During operation, the pinion gear 2 is turned clockwise or anticlockwise with the result that the gear ring 4 turns anticlockwise or clockwise respectively. As the two gears 2,8 turn, so the lubricant adheres to, and moves with, the teeth of both gears 2,4 away from the engagement point 6. The pinion gear 2 is small and the lubricant is allowed to recirculate within the housing 8. The lubricant which adheres to the gear ring 4 is swept from the teeth by the interaction of gear teeth 8 and brushes 12. Thus it is kept within the housing 8.
It will be understood that the brushes 12 of the arrangement shown can be replaced by a number of alternatives.
In a first alternative the brushes are replaced with spring rollers in the same location as the brushes 12. The rollers have improved wear and friction properties when compared with brushes.
In a second alternative the brushes 12 are replaced with spring scrapers.
In a third alternative the brushes 12 are replaced with a sprung flap, pivoting at a point above the teeth of the rig gear 8.
In a further alternative, each brush 12 is replaced with a pair of brushes in series. The gap between brushes can be packed with grease on assembly and subsequently replenished via a grease nipple on the housing 8.

Claims (2)

- 3 CLAIMS
1 An arrangement to provide effective lubrication of an interface between a first gear and a second gear comprises sealing means adapted to retain a lubricant in the vicinity of the interface.
2 A housing, which substantially surrounds an interface between a first gear and a second gear, is provided with at least one aperture to permit relative movement between the second gear and the housing wherein the at least one aperture is provided with sealing means which sealing means is adapted to remove a lubricant from the teeth of the gear ring and retain it within the housing.
GB0211534A 2002-05-20 2002-05-20 Gear lubricant/grease retention arrangement Withdrawn GB2388876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0211534A GB2388876A (en) 2002-05-20 2002-05-20 Gear lubricant/grease retention arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0211534A GB2388876A (en) 2002-05-20 2002-05-20 Gear lubricant/grease retention arrangement

Publications (2)

Publication Number Publication Date
GB0211534D0 GB0211534D0 (en) 2002-06-26
GB2388876A true GB2388876A (en) 2003-11-26

Family

ID=9937012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0211534A Withdrawn GB2388876A (en) 2002-05-20 2002-05-20 Gear lubricant/grease retention arrangement

Country Status (1)

Country Link
GB (1) GB2388876A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100826A (en) * 2014-07-09 2014-10-15 史丹利化肥宁陵有限公司 Lubricating oil collecting and recycling device
DE102016213316A1 (en) * 2016-07-21 2018-01-25 Wobben Properties Gmbh Gear arrangement, in particular for a rotary connection of a wind turbine, wind energy with selbiger and sealing element for selbige

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1426352A (en) * 1973-02-09 1976-02-25 Holmes Co Ltd W C Gear lubrication device
GB1543756A (en) * 1975-04-24 1979-04-04 Westdeutsche Getriebewerk Gmbh Epicyclic gearing with enclosing casing
EP0077617A2 (en) * 1981-10-19 1983-04-27 Kurtz, Helen Lou Lubricant retainer and gear case fitted therewith
GB2116646A (en) * 1982-03-17 1983-09-28 Harcross Engineering Improvements in the lubrication of rack and pinion apparatus
US4488730A (en) * 1982-06-23 1984-12-18 Krupp Polysius Ag Device for sealing a ring gear
US4603865A (en) * 1985-02-25 1986-08-05 General Motors Corporation Drive motor gear lubricant seal for locomotives and the like
US5048363A (en) * 1990-09-05 1991-09-17 Burle Technologies, Inc. Worm gear lubrication retainer and transfer apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1426352A (en) * 1973-02-09 1976-02-25 Holmes Co Ltd W C Gear lubrication device
GB1543756A (en) * 1975-04-24 1979-04-04 Westdeutsche Getriebewerk Gmbh Epicyclic gearing with enclosing casing
EP0077617A2 (en) * 1981-10-19 1983-04-27 Kurtz, Helen Lou Lubricant retainer and gear case fitted therewith
GB2116646A (en) * 1982-03-17 1983-09-28 Harcross Engineering Improvements in the lubrication of rack and pinion apparatus
US4488730A (en) * 1982-06-23 1984-12-18 Krupp Polysius Ag Device for sealing a ring gear
US4603865A (en) * 1985-02-25 1986-08-05 General Motors Corporation Drive motor gear lubricant seal for locomotives and the like
US5048363A (en) * 1990-09-05 1991-09-17 Burle Technologies, Inc. Worm gear lubrication retainer and transfer apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100826A (en) * 2014-07-09 2014-10-15 史丹利化肥宁陵有限公司 Lubricating oil collecting and recycling device
DE102016213316A1 (en) * 2016-07-21 2018-01-25 Wobben Properties Gmbh Gear arrangement, in particular for a rotary connection of a wind turbine, wind energy with selbiger and sealing element for selbige

Also Published As

Publication number Publication date
GB0211534D0 (en) 2002-06-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)