WO2009056807A1 - Bearing plate - Google Patents

Bearing plate Download PDF

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Publication number
WO2009056807A1
WO2009056807A1 PCT/GB2008/003629 GB2008003629W WO2009056807A1 WO 2009056807 A1 WO2009056807 A1 WO 2009056807A1 GB 2008003629 W GB2008003629 W GB 2008003629W WO 2009056807 A1 WO2009056807 A1 WO 2009056807A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing plate
groove
bearing
plate according
boltholes
Prior art date
Application number
PCT/GB2008/003629
Other languages
French (fr)
Inventor
Alan James Roddis
Original Assignee
Aes Engineering 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 Aes Engineering Ltd filed Critical Aes Engineering Ltd
Priority to DE212008000082U priority Critical patent/DE212008000082U1/en
Priority to GB1006928.4A priority patent/GB2467066B/en
Publication of WO2009056807A1 publication Critical patent/WO2009056807A1/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
    • 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
    • F16C33/72—Sealings
    • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
    • 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
    • F16C33/72—Sealings
    • 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
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/042—Housings for rolling element bearings for rotary movement
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3268—Mounting of sealing rings
    • F16J15/3276—Mounting of sealing rings with additional static sealing between the sealing, or its casing or support, and the surface on which it is mounted

Definitions

  • This invention relates to bearing plates which are used to cap and seal off bearing chambers containing lubricants such as oils or greases.
  • Bearing plates are known which are attached to bearing chambers and sealed by means of gaskets. In practice, it is found that any slight misalignment between the bearing plate and the bearing chamber results in the gaskets not providing a good seal.
  • a bearing plate provided with at least one toroidal elastomeric member to seal against a bearing chamber when the bearing plate is attached thereto.
  • the bearing plate is provided with one or more grooves in a surface which, when the bearing plate is attached to the bearing chamber, abuts against the bearing chamber, each groove being for accommodating a toroidal elastomeric member.
  • the toroidal elastomeric member is an O ring.
  • the bearing plate is normally provided with one or more boltholes to enable the plate to be attached to the bearing chamber.
  • a plurality of boltholes are provided.
  • three boltholes are provided with equal circumferential spacing therebetween.
  • the bearing plate is provided with a groove which extends around the outside of the boltholes.
  • this groove is of substantially circular shape.
  • each bolthole is also provided with a circumferential groove or recess which accommodates a toroidal elastomeric member providing sealing around that bolthole. More preferably, the groove surrounding a bolthole extends close to the inner diameter of the groove extending around the entire periphery of the bearing plate. The bolthole grooves may impinge upon the outer groove in such a way that the bolthole O rings contact the outer O ring to provide sealing therebetween.
  • the bearing plate is provided with a groove which extends circumferentially around the entire surface of the bearing plate which, in use, will abut the bearing chamber.
  • this groove extends inwardly of the boltholes.
  • the shape of the groove will depend on the design of the bearing plate but may, for instance, be substantially triangular, in the case where there are three boltholes, with each side of the triangle being at least somewhat outwardly curved.
  • the groove passes between an inner abutment or location spigot of the bearing plate, which facilitates the location of the bearing plate at the bearing chamber end, and the boltholes.
  • the bearing plate may be provided with, in addition to the location spigot, one or more oil drain recesses which interrupt the location spigot and extend radially outwardly at least part way across the face of the plate.
  • the O ring groove may, in this case, run radially outwardly of both the location spigot and the oil drain recesses and radially inwardly of the boltholes.
  • Figure 1 is an end view of a bearing plate in accordance with a first embodiment of the present invention.
  • FIG. 2 is an end view of a second embodiment of a bearing plate in accordance with the present invention. Detailed Description of the Invention
  • Bearing plate 1 which is a first embodiment of the present invention.
  • Bearing plate 1 is generally known structure being a shaped annular metal element with a central hole 3 and a thickness of from about 0.5 - 1cm.
  • the bearing 1 is connected to a bearing chamber, the end seen in Figure 1 abutting against the end of the bearing chamber and with a drive shaft extending through hole 3.
  • Extending peripherally around hole 3 is a location spigot 5 which is interrupted by three circumferentially spaced apart oil drain recesses 7.
  • Adjacently outer peripheral surface of plate 1 is a circular groove 9 within which is located an O ring 11.
  • Bearing plate 1 is provided with 3 circumferentially equally spaced apart boltholes 13, each of which is provided with a groove or recess 15 set into the end surface 17, which groove 15 runs, at its outer edge into groove 9. Accommodated within groove 15 is a small O ring 19.
  • O ring 11 and O rings 19 provide effective sealing to prevent oil or grease leaking outwardly from between bearing plate and the bearing chamber (O ring 11) and between the bearing chamber and the boltholes 13 (O rings 15). - v. .
  • O rings instead of thin gaskets provides accommodation for any misalignment of the attachment of the bearing plate to the bearing chamber.
  • a second embodiment according to the present invention is a bearing plate 21 essentially similar to that described above with reference to Figure 1. However, in this case sealing between the bearing plate and the bearing chamber is provided by means of O ring 23 which is accommodated in a substantially triangular groove 25 which, as can been seen in
  • Figure 2 includes three outwardly curved sides 27 such that the groove extends radially outwards of spigot 5 and oil drain recesses 7 and inwardly of boltholes 13. In this way the need for a plurality of grooves, and corresponding O rings, is avoided.
  • a single groove and O ring provides sealing both against the escape of oil outwardly from between the bearing chamber and the bearing plate and also through the boltholes.
  • the O ring accommodating grooves in the above described embodiments may be provided with one or two side-walls which may be perpendicular to the base of the groove or inclined inwardly.
  • the groove may be of half-dovetail (one inclined wall) or full dovetail (two inclined walls) cross-sectional shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Gasket Seals (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sealing Of Bearings (AREA)

Abstract

A bearing plate (1 ) is provided with at least one toroidal elastomeric member (19) which seals against the bearing chamber when the bearing plate is attached thereto. The bearing plate may be provided with one or more grooves (15), (25) in a surface which, when the bearing plate is attached to the bearing chamber, abuts against the bearing chamber, each groove being for accommodating a toroidal elastomeric member.

Description

BEARING PLATE
Field of the Invention
This invention relates to bearing plates which are used to cap and seal off bearing chambers containing lubricants such as oils or greases.
Background to the Invention
Bearing plates are known which are attached to bearing chambers and sealed by means of gaskets. In practice, it is found that any slight misalignment between the bearing plate and the bearing chamber results in the gaskets not providing a good seal.
Statements of the Invention
According to the present invention that is provided a bearing plate provided with at least one toroidal elastomeric member to seal against a bearing chamber when the bearing plate is attached thereto.
Preferably the bearing plate is provided with one or more grooves in a surface which, when the bearing plate is attached to the bearing chamber, abuts against the bearing chamber, each groove being for accommodating a toroidal elastomeric member.
Preferably the toroidal elastomeric member is an O ring.
The bearing plate is normally provided with one or more boltholes to enable the plate to be attached to the bearing chamber. Typically a plurality of boltholes are provided. In one example, three boltholes are provided with equal circumferential spacing therebetween.
In one embodiment of present invention the bearing plate is provided with a groove which extends around the outside of the boltholes. Preferably, this groove is of substantially circular shape.
More preferably, each bolthole is also provided with a circumferential groove or recess which accommodates a toroidal elastomeric member providing sealing around that bolthole. More preferably, the groove surrounding a bolthole extends close to the inner diameter of the groove extending around the entire periphery of the bearing plate. The bolthole grooves may impinge upon the outer groove in such a way that the bolthole O rings contact the outer O ring to provide sealing therebetween.
In another aspect of the present invention, the bearing plate is provided with a groove which extends circumferentially around the entire surface of the bearing plate which, in use, will abut the bearing chamber. However, this groove extends inwardly of the boltholes. The shape of the groove will depend on the design of the bearing plate but may, for instance, be substantially triangular, in the case where there are three boltholes, with each side of the triangle being at least somewhat outwardly curved. The groove passes between an inner abutment or location spigot of the bearing plate, which facilitates the location of the bearing plate at the bearing chamber end, and the boltholes.
The bearing plate may be provided with, in addition to the location spigot, one or more oil drain recesses which interrupt the location spigot and extend radially outwardly at least part way across the face of the plate. The O ring groove may, in this case, run radially outwardly of both the location spigot and the oil drain recesses and radially inwardly of the boltholes.
Brief Description of Drawings
The accompanying drawings are as follows:-
Figure 1 is an end view of a bearing plate in accordance with a first embodiment of the present invention; and
Figure 2 is an end view of a second embodiment of a bearing plate in accordance with the present invention. Detailed Description of the Invention
Referring to Figure 1 of the accompanying drawings, there is illustrated a bearing plate 1 which is a first embodiment of the present invention. Bearing plate 1 is generally known structure being a shaped annular metal element with a central hole 3 and a thickness of from about 0.5 - 1cm. In use, the bearing 1 is connected to a bearing chamber, the end seen in Figure 1 abutting against the end of the bearing chamber and with a drive shaft extending through hole 3.
Extending peripherally around hole 3 is a location spigot 5 which is interrupted by three circumferentially spaced apart oil drain recesses 7.
Adjacently outer peripheral surface of plate 1 is a circular groove 9 within which is located an O ring 11.
Bearing plate 1 is provided with 3 circumferentially equally spaced apart boltholes 13, each of which is provided with a groove or recess 15 set into the end surface 17, which groove 15 runs, at its outer edge into groove 9. Accommodated within groove 15 is a small O ring 19.
The combination of O ring 11 and O rings 19 provides effective sealing to prevent oil or grease leaking outwardly from between bearing plate and the bearing chamber (O ring 11) and between the bearing chamber and the boltholes 13 (O rings 15). - v. .
The use of O rings instead of thin gaskets provides accommodation for any misalignment of the attachment of the bearing plate to the bearing chamber.
Referring now to Figure 2 of the accompanying drawings, a second embodiment according to the present invention is a bearing plate 21 essentially similar to that described above with reference to Figure 1. However, in this case sealing between the bearing plate and the bearing chamber is provided by means of O ring 23 which is accommodated in a substantially triangular groove 25 which, as can been seen in
Figure 2, includes three outwardly curved sides 27 such that the groove extends radially outwards of spigot 5 and oil drain recesses 7 and inwardly of boltholes 13. In this way the need for a plurality of grooves, and corresponding O rings, is avoided. A single groove and O ring provides sealing both against the escape of oil outwardly from between the bearing chamber and the bearing plate and also through the boltholes.
The O ring accommodating grooves in the above described embodiments may be provided with one or two side-walls which may be perpendicular to the base of the groove or inclined inwardly. In the latter case the groove may be of half-dovetail (one inclined wall) or full dovetail (two inclined walls) cross-sectional shape.

Claims

Claims
1. A bearing plate provided with at least one toroidal elastomeric member to seal against a bearing chamber when the bearing plate is attached thereto.
2. A bearing plate according to Claim 1 , wherein the plate is provided with one or more grooves in a surface which, when the bearing plate is attached to the bearing chamber, abuts against the bearing chamber, each groove being for accommodating a toroidal elastomeric member.
3. A bearing plate according to Claim 1 or Claim 2 wherein the toroidal elastomeric member is an O ring.
4. A bearing plate according to any of the preceding Claims, wherein the plate is provided with one or more boltholes to enable the plate to be attached to the bearing chamber.
5. A bearing plate according to Claim 4, wherein three boltholes are provided in the bearing plate, the boltholes being provided with equal circumferential spacing therebetween.
6. A bearing plate according to any of the preceding Claims, wherein, the plate is provided with a groove which extends around the outside of the boltholes.
7. A bearing plate according to Claim 6 wherein the groove is of substantially circular shape.
8. A bearing plate according to any of the preceding Claims, wherein each bolthole is provided with a circumferential groove or recess which accommodates the toroidal elastomeric member providing sealing around that bolthole.
9. A bearing plate according to Claim 8 wherein the groove surrounding a bolthole extends close the inner diameter of the groove extending around the entire periphery of the bearing plate.
10. A bearing plate according to Claim 9 wherein the bolthole grooves impinge upon the outer groove in such a way that the bolthole O rings contact the outer O ring to provide sealing therebetween.
A bearing plate provided with a groove which extends circumferentially around the entire surface of the bearing plate which, in use, will abut the bearing chamber.
11. A bearing plate according to Claim 10 wherein the groove extends inwardly of the boltholes of which the bearing plate is provided.
12. A bearing plate according to Claim 10 or Claim 11 in which the groove is substantially triangular.
13. A bearing plate according to Claim 12 wherein each side of the triangle of the groove is a least somewhat outwardly curved.
14. A bearing plate according to any of the Claims 11 to 13 wherein the groove passes between an inner abutment or location spigot of the bearing plate, which facilitates location of the bearing plate at bearing chamber end, and boltholes with which the bearing plate is provided.
15. A bearing plate according to any of the preceding Claims, wherein the bearing plate is provided with a location spigot and one or more oil drain recesses which interrupt the location spigot and extends radially outwardly at least part way across the face of the plate.
16. A bearing plate according to Claim 15 wherein the O ring groove runs radiallly outwardly of the location spigot and the oil drain recesses and radially inwardly of the boltholes.
17. A bearing plate according to Claim 1 or Claim 13 and substantially as herein described.
18. A bearing plate substantially described with reference to either Figure 1 or Figure 2 of the accompanying drawings.
PCT/GB2008/003629 2007-10-31 2008-10-24 Bearing plate WO2009056807A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE212008000082U DE212008000082U1 (en) 2007-10-31 2008-10-24 bearing plate
GB1006928.4A GB2467066B (en) 2007-10-31 2008-10-24 Bearing plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0721383.8 2007-10-31
GBGB0721383.8A GB0721383D0 (en) 2007-10-31 2007-10-31 Bearing plate

Publications (1)

Publication Number Publication Date
WO2009056807A1 true WO2009056807A1 (en) 2009-05-07

Family

ID=38834610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/003629 WO2009056807A1 (en) 2007-10-31 2008-10-24 Bearing plate

Country Status (3)

Country Link
DE (1) DE212008000082U1 (en)
GB (2) GB0721383D0 (en)
WO (1) WO2009056807A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014067674A1 (en) * 2012-10-30 2014-05-08 Alfa Laval Corporate Ab Gasket and assembly
WO2015023493A1 (en) * 2013-08-16 2015-02-19 Applied Materials, Inc. Sealing groove methods for semiconductor equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062555A (en) * 1960-05-11 1962-11-06 Hydromatics Inc Packed joint
JPS55119221A (en) * 1979-03-05 1980-09-12 Hitachi Ltd Bearing device
DE3619754A1 (en) * 1985-07-31 1987-02-12 Toyota Motor Co Ltd LUBRICATING DEVICE FOR A TURNING MACHINE
US5658053A (en) * 1995-03-24 1997-08-19 Vencill; R. Lee Shaft re-greasing hub
US6581939B1 (en) * 2000-11-22 2003-06-24 Emerson Power Transmission Manufacturing, L.P. Bearing end cap with integrated seal
JP2004052832A (en) * 2002-07-17 2004-02-19 Koyo Seiko Co Ltd Rolling bearing device
DE102005015261A1 (en) * 2005-04-04 2006-10-05 Robert Bosch Gmbh Wheel bearing rotation measuring device for motor vehicle, has sensor assembly with retaining ring, which supports plastic part and pressed in with fixed part of bearing under insertion of seal, and formed as cylindrical part with flange

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062555A (en) * 1960-05-11 1962-11-06 Hydromatics Inc Packed joint
JPS55119221A (en) * 1979-03-05 1980-09-12 Hitachi Ltd Bearing device
DE3619754A1 (en) * 1985-07-31 1987-02-12 Toyota Motor Co Ltd LUBRICATING DEVICE FOR A TURNING MACHINE
US5658053A (en) * 1995-03-24 1997-08-19 Vencill; R. Lee Shaft re-greasing hub
US6581939B1 (en) * 2000-11-22 2003-06-24 Emerson Power Transmission Manufacturing, L.P. Bearing end cap with integrated seal
JP2004052832A (en) * 2002-07-17 2004-02-19 Koyo Seiko Co Ltd Rolling bearing device
DE102005015261A1 (en) * 2005-04-04 2006-10-05 Robert Bosch Gmbh Wheel bearing rotation measuring device for motor vehicle, has sensor assembly with retaining ring, which supports plastic part and pressed in with fixed part of bearing under insertion of seal, and formed as cylindrical part with flange

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014067674A1 (en) * 2012-10-30 2014-05-08 Alfa Laval Corporate Ab Gasket and assembly
JP2015534020A (en) * 2012-10-30 2015-11-26 アルファ−ラヴァル・コーポレート・アーベー Gasket and assembly
AU2013339801B2 (en) * 2012-10-30 2016-06-02 Alfa Laval Corporate Ab Gasket and assembly
KR20170000403A (en) * 2012-10-30 2017-01-02 알파 라발 코포레이트 에이비 Gasket and assembly
US9903668B2 (en) 2012-10-30 2018-02-27 Alfa Laval Corporate Ab Gasket and assembly
KR101896170B1 (en) 2012-10-30 2018-09-07 알파 라발 코포레이트 에이비 Gasket and assembly
WO2015023493A1 (en) * 2013-08-16 2015-02-19 Applied Materials, Inc. Sealing groove methods for semiconductor equipment
JP2016534299A (en) * 2013-08-16 2016-11-04 アプライド マテリアルズ インコーポレイテッドＡｐｐｌｉｅｄ Ｍａｔｅｒｉａｌｓ，Ｉｎｃｏｒｐｏｒａｔｅｄ Sealing groove method for semiconductor devices
US9646807B2 (en) 2013-08-16 2017-05-09 Applied Materials, Inc. Sealing groove methods for semiconductor equipment

Also Published As

Publication number Publication date
GB201006928D0 (en) 2010-06-09
DE212008000082U1 (en) 2010-08-19
GB2467066A (en) 2010-07-21
GB0721383D0 (en) 2007-12-12
GB2467066B (en) 2012-04-25

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