EP1070568A2 - Dispositif et méthode de démontage pour paliers - Google Patents

Dispositif et méthode de démontage pour paliers Download PDF

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Publication number
EP1070568A2
EP1070568A2 EP20000850125 EP00850125A EP1070568A2 EP 1070568 A2 EP1070568 A2 EP 1070568A2 EP 20000850125 EP20000850125 EP 20000850125 EP 00850125 A EP00850125 A EP 00850125A EP 1070568 A2 EP1070568 A2 EP 1070568A2
Authority
EP
European Patent Office
Prior art keywords
bearing
annular body
dismantling
bearings
row
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Withdrawn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
EP20000850125
Other languages
German (de)
English (en)
Inventor
Ove Andersson
Manne Kylstad
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.)
SKF Sverige AB
Original Assignee
SKF Sverige AB
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 SKF Sverige AB filed Critical SKF Sverige AB
Publication of EP1070568A2 publication Critical patent/EP1070568A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races

Definitions

  • the present invention relates to a means for facilitating dismantling of a bearing having an inner bearing ring and an outer bearing ring and a dismantling method for a row of bearings mounted on an axle.
  • the object of the present invention is to solve the above mentioned problems.
  • a means for facilitating dismantling of a bearing having an inner bearing ring and an outer bearing ring characterised by an annular body having a first axial end attached to an end surface of the inner bearing ring and comprising means for co-operation with a dismantling tool.
  • the first end of the annular body is adhesively attached to an end surface of the inner bearing ring and the means for co-operating with a dismantling tool comprises a row of radially directed holes in the annular body or/and a peripherical groove.
  • the annular body can comprise several different means for co-operation with different dismantling tools.
  • the present invention is also related to a method of dismantling a row of at least two bearings having inner bearing rings mounted on an axle and outer bearing rings, characterised by the following steps,
  • the attaching of the annular body to the first bearing in the row of bearings is made in connection with the dismantling of the bearings after removal of the easily dismountable part of the housing.
  • the attaching of the annular body to the first bearing in the row of bearings takes place before use of the bearings.
  • an annular body is successively attached to the end surface of every bearing in the row of bearings after removal of the bearing adjacent thereto and the easily dismountable part of the housing
  • the bearing arrangement disclosed in Figure 1 comprises a row of three angular contact ball bearings 1,2,3 and a cylindrical roller bearing 4.
  • the inner bearing rings 5,6,7,8 of the respective bearing 1-4 have interference fits with an axle A and the outer bearing ring 9 of the cylindrical roller bearing 4 has an interference fit with the surrounding housing 10.
  • the housing 10 can be opened from the outside by removing portions 11 and 12.
  • the inside of the housing is to the left in the Figure and the housing can be split at 13 if desired.
  • a spring loaded ring 14 is axially pressing against the free axial end surface of the outer bearing ring 15 of first bearing 1 in the row of bearings.
  • the bearing arrangement is sealed to the outside with suitable sealing arrangements.
  • annular body 18 has been attached to the inner bearing ring 5 of the first bearing 1 in the row of bearings.
  • the annular body comprises means for co-operating with a dismantling tool (not shown) in the form of radially directed holes, such as at 19 in Figure 1, peripherical grooves or the like in order to permit gripping parts of a simple construction of a dismantling tool to be applied in a simple way.
  • the annular body 18 can be provided with several different types of means that can co-operate with tools of different constructions.
  • the annular body is adhesively attached to the free axial end of the inner bearing ring 5 of the first bearing 1 in the row of bearings. Since the adhesive connection between the inner bearing ring 5 and the annular body 18 will only be subjected to axial forces only during the dismantling of the bearing 1, the join between the bearing ring 5 and the annular body 18 can withstand a very large dismantling force.
  • the annular body 18 is preferably made of steel but other materials such as light metal or brass could also be used. There is a lot of quick setting adhesives available on the market that is suitable for attaching the annular body 18 to the bearing ring 5, for example can Loctite® 496 from Loctite Corp., USA be used.
  • the easily dismountable portions 11 and 12 of the housing 10 is removed together with the springloaded ring 14 and the sealing devices sealing the inner of the housing 10 against the enviroment is removed.
  • the annular body 18 is attached to the inner bearing ring 5 of the first bearing 1 with the help of a quick setting adhesive.
  • the gripping means of a dismantling tool is inserted into the co-operating means in the annular body 18, for example the holes 19, and the annular body and thereby the bearing 1 is subjected to an outwardly directed axial force by actioning of the dismantling tool.
  • the first bearing 1 in the row of bearings 1-4 is thereby taken off the axle A.
  • an new annular body 18 can be adhesivly attached to the second bearing 2 and this bearing can be removed in the same way as the first bearing 1, whereafter the remaining bearings successively are removed in the same way.
  • annular body 18 is attached to bearing 1 before this bearing is mounted on the axle A and thus before the bearing arrangement is sealed by the mounting of portions 11,12 of the housing.
  • the annular body 18 is thus in this embodiment attached to the bearing 1 during the whole operation of the bearing arrangement.
  • the described embodiment can be modified in several ways within the scope of the invention, especially regarding the construction of the bearing arrangement and its housing.
  • the annular body need not have a smooth peripherical surface, as in the disclosed embodiment, but can have projections or the like protruding from the periphery thereof in order to co-operate with a dismantling tool. Such projections are preferably distributed regularly around the periphery.
  • the scope of the invention should therefore only be restricted by the content of the enclosed patent Claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)
EP20000850125 1999-07-22 2000-07-06 Dispositif et méthode de démontage pour paliers Withdrawn EP1070568A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9902761A SE514998C2 (sv) 1999-07-22 1999-07-22 Demonteringsanordning och -metod
SE9902761 1999-07-22

Publications (1)

Publication Number Publication Date
EP1070568A2 true EP1070568A2 (fr) 2001-01-24

Family

ID=20416548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000850125 Withdrawn EP1070568A2 (fr) 1999-07-22 2000-07-06 Dispositif et méthode de démontage pour paliers

Country Status (4)

Country Link
EP (1) EP1070568A2 (fr)
JP (1) JP2001050289A (fr)
CN (1) CN1281774A (fr)
SE (1) SE514998C2 (fr)

Also Published As

Publication number Publication date
JP2001050289A (ja) 2001-02-23
SE9902761D0 (sv) 1999-07-22
SE9902761L (sv) 2001-01-23
SE514998C2 (sv) 2001-05-28
CN1281774A (zh) 2001-01-31

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