EP3115157A1 - Heizungsvorrichtung zur erwärmung einer dichtung für ein lager - Google Patents

Heizungsvorrichtung zur erwärmung einer dichtung für ein lager Download PDF

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Publication number
EP3115157A1
EP3115157A1 EP15306137.9A EP15306137A EP3115157A1 EP 3115157 A1 EP3115157 A1 EP 3115157A1 EP 15306137 A EP15306137 A EP 15306137A EP 3115157 A1 EP3115157 A1 EP 3115157A1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
heating
seal
channel
heating device
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.)
Granted
Application number
EP15306137.9A
Other languages
English (en)
French (fr)
Other versions
EP3115157B1 (de
Inventor
Michel Nicolas
Jean-Marc DIOGENE
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 AB
Original Assignee
SKF 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 AB filed Critical SKF AB
Priority to EP15306137.9A priority Critical patent/EP3115157B1/de
Publication of EP3115157A1 publication Critical patent/EP3115157A1/de
Application granted granted Critical
Publication of EP3115157B1 publication Critical patent/EP3115157B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25B27/0028—Tools for removing or installing seals

Definitions

  • the present invention relates to the field of bearing assemblies.
  • the present invention relates more particularly to the field of large size bearings, for example large-diameter rolling bearings adapted to be used in wind turbines.
  • Rolling bearings comprise generally two rings and rolling elements interposed between these rings.
  • seals made from synthetic materials such as elastomeric or thermoplastic materials, are interposed between the rings.
  • the mounting of the seals between the rings induces difficulties due to the rigidity of the seals.
  • Such a solution is not satisfying because it is difficult to obtain a controlled temperature of the seals and because there is a risk of overheating of the seals.
  • One aim of the present invention is to facilitate the heating and the mounting of seals between rings of bearings.
  • a heating device for heating a seal having to be placed between rings of a bearing.
  • This heating device comprises two longitudinal parts able to be moved relative to each other between a closed position in which a longitudinal channel is formed there between for being transverse longitudinally by said seal and an open position in which said seal can be introduced in and removed out of said channel, at least one of the said longitudinal part carrying heating means for heating the portion of the seal extending in said channel.
  • the said longitudinal parts can be provided with articulating means having a longitudinal rotation axis and are provided with locking means for maintaining the said longitudinal parts in the said close position.
  • the said longitudinal parts can comprise half longitudinal bodies which form there between said longitudinal channel in said close position and which carries said heating means.
  • the heating means can comprise at least a longitudinal elongated element including at least an electrical resistance.
  • the said longitudinal parts can comprise half longitudinal internal bodies which form there between said longitudinal channel in said close position and half longitudinal external fairings surrounding said half longitudinal internal bodies, the half longitudinal internal bodies carrying heating means.
  • the heating device can comprise end flanges for fixing together, respectively, half longitudinal internal bodies and half longitudinal external fairings.
  • the heating means can comprise at least one longitudinal elongated element inserted in a longitudinal hole of at least one of the half longitudinal internal bodies.
  • the heating device can comprise guiding protuberances (54, 55) able to cooperate with the bearing for guiding the heating device along a circumferential path.
  • a heating device 1 is intended to heat an annular seal 2, this seal 2 being provided with lips and having to be mounted between an internal ring 3 and an external ring 4 of a bearing assembly 5.
  • the bearing assembly 5 comprises at least a row 6 of rolling elements, such as balls, interposed between annular raceways of the rings 3 and 4, the seal 2 being intended to be mounted in an annular location 7 provided at an annular end portion of the space 8 between the ring 3 and 4, in which the rolling elements 6 move.
  • the heating device 1 comprises two half longitudinal elongated parts 10 and 11.
  • the longitudinal elongated parts 10 and 11 comprise respectively half tubular longitudinal inner bodies 12 and 13, formed as half cylinders, and half longitudinal tubular outer fairings 14 and 15, formed as half cylinders, recovering the half tubular longitudinal inner bodies 12 and 13.
  • the half tubular longitudinal inner bodies 12 and 13 are divided in two successive portions 12a, 12b and 13a, 13b, aligned longitudinally, which are respectively connected by longitudinal ankles 17 and 18 ( figure 6 ).
  • the longitudinal parts 10 and 11 comprise further half radial end flanges 19, 20 and 21, 22, formed as half crowns, which are provided at the opposed ends of the inner bodies 12 and 13 and the outer fairings 14 and 15.
  • the half radial end flanges 19, 20 and 21, 22 comprise edges 19a, 20a and 21a, 22a, which extend over the outer faces of the outer fairings 14 and 15.
  • Longitudinal mounting screws 23, 24 and 25, 26 are provided through the end flanges 19, 20 and 21, 22 and are screwed in the opposed end portions of the portions 12a, 12b and 13a, 13b, of the inner bodies 12 and 13.
  • the half longitudinal inner bodies 12 and 13 form a longitudinal central channel 27 between them and the opposed half end flanges 19, 20 and 21, 22 form opposed end apertures 28 and 29 between them, at the ends of the longitudinal channel 27.
  • the longitudinal parts 10 and 11 are provided with a pair of articulating means 30, which are longitudinally spaced apart and which comprise respectively pairs of projecting lugs 31 and 32 respectively on the outer fairings 14 and 15 and longitudinal axles 33 which transverse the lugs 31 et 32.
  • the longitudinal parts 10 and 11 can be pivoted between the said close position ( figures 1-4 ) and an open position ( figure 5 ) in which the longitudinal parts 10 and 11 are spaced apart, such that the channel 27 and the apertures 28 and 29 are opened.
  • the longitudinal parts 10 and 11 are also provided with a pair of locking means 34 for maintaining them in said close position.
  • the locking means 34 are spaced apart longitudinally and are located at a position diametrically opposed to the articulating means 30.
  • the locking means 34 comprise respectively pairs of projecting lugs 35 and 36 respectively on the outer fairings 14 and 15, which respectively come one on the other in the said close position, and comprise threaded rods 37 articulated on the lugs 35 through longitudinal axle 38.
  • the rods 37 can be pivoted between locking positions ( figures 1-4 ) in which the rods 37 are introduced in slots 39 of the lugs 36 and released positions ( figure 5 ) in which the rods 37 are out of the slots 39.
  • the rods 37 carry rings 40, nuts 41 and springs 42 between the rings and the nuts. In the locking position, the nuts 41 apply the ring 40 on the lugs 36 through the springs 42, so as to maintain the heating device 1 in the said close position.
  • the heating device 1 comprises further elongated longitudinal heating elements 43, 44, 45 and 46, respectively inserted in longitudinal holes 47, 48, 49 and 50 of the longitudinal portions 12a, 12b and 13a, 13b of the longitudinal inner bodies 12 and 13.
  • the longitudinal holes 47 and 48 are aligned, the longitudinal holes 49 and 50 are aligned, the longitudinal holes 47 and 49 are diametrically opposed and the longitudinal holes 48 and 50 are diametrically opposed.
  • the heating elements 43, 44, 45 and 46 which include electrical resistances, are connected to a common connector 51, via electrical wires 43a, 44a, 45a and 46a, which is placed in a lateral projecting chamber 52 of the outer fairing 15.
  • the connector 51 is connected to a feeding wire 53 connected to an electrical source (not shown).
  • the outer fairing 14 is provided with projecting radial guiding rods 54 and 55 which are longitudinally spaced apart.
  • the rods 54 and 55 are provided with collar 56 and 57 such that the end portions of the rods 54 and 55 are free.
  • the heating device 1 can be used as following.
  • an operator places the heating device 1 on the bearing 5, with the end portions of the guiding rods 54 and 55 introduced in the space 8 between the rings 3 and 4 and the collar 56 and 57 abutting external annular radial surfaces 59 and 60 of the rings 3 and 4. So, the heating device 1 extends in a parallel position and at a distance of the radial face of the bearing 5.
  • the operator places the heating device 1 in its open position previously mentioned ( Figure 6 ).
  • the operator introduces a portion of the annular seal 2, longitudinally, between the half longitudinal elongated parts 10 and 11.
  • the portion of the annular seal 2 extends longitudinally and freely in the channel 27 and through the end apertures 28 and 29.
  • the portion of the annular seal 2 is heated by the heat of the bodies 12 and 13 including the heating elements 43, 44, 45 and 46, such that the rigidity of this portion is decreasing.
  • the heating of the portion of the seal 2 extending in the channel 27 is controlled and homogenous.
  • the operator moves the heating device 1 circumferentially along the space 8 of the bearing 5, the heating device 1 being guided by the guiding rods 54 and 55 engaged in the circumferential edge portion of the space 8 between the rings 3 and 4.
  • the seal 2 slides longitudinally in the channel 27 and portions of the annular seal 2 are heated.
  • the operator introduces successively or continuously heated portions of the annular seal 2 into the space 8 of the bearing 5, to the location 7.
  • the operator can open the heating device 1, extract the portion of the seal 2 from the heating device 1 and remove the heating device 1 for finishing the installation of the annular seal 2 in the location 7.
  • the present invention is illustrated by the description of an application of a heating device for heating an annular seal having to be mounted in a bearing including one or several rows of rolling elements.
  • the present invention can also be applied to plain bearings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
EP15306137.9A 2015-07-10 2015-07-10 Heizungsvorrichtung zur erwärmung einer dichtung für ein lager Active EP3115157B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15306137.9A EP3115157B1 (de) 2015-07-10 2015-07-10 Heizungsvorrichtung zur erwärmung einer dichtung für ein lager

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15306137.9A EP3115157B1 (de) 2015-07-10 2015-07-10 Heizungsvorrichtung zur erwärmung einer dichtung für ein lager

Publications (2)

Publication Number Publication Date
EP3115157A1 true EP3115157A1 (de) 2017-01-11
EP3115157B1 EP3115157B1 (de) 2020-09-02

Family

ID=53765168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15306137.9A Active EP3115157B1 (de) 2015-07-10 2015-07-10 Heizungsvorrichtung zur erwärmung einer dichtung für ein lager

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EP (1) EP3115157B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10808766B2 (en) 2017-07-31 2020-10-20 Aktiebolaget Skf H-seal mounting tool
US10836023B2 (en) 2017-07-31 2020-11-17 Aktiebolaget Skf Method of using a mounting tool to install an H-Seal in a bearing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487257A1 (de) * 1990-11-19 1992-05-27 BREVILLE R & D PTY. LIMITED Toaster für Sandwiche oder Grill
EP1400193A1 (de) * 2002-09-20 2004-03-24 Seb Sa Haube von einem elektrischen Waffeleisen
WO2011050837A1 (en) * 2009-10-28 2011-05-05 Aktiebolaget Skf X-shaped seal for rolling bearing, in particular for rolling bearing used in a wind turbine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0487257A1 (de) * 1990-11-19 1992-05-27 BREVILLE R & D PTY. LIMITED Toaster für Sandwiche oder Grill
EP1400193A1 (de) * 2002-09-20 2004-03-24 Seb Sa Haube von einem elektrischen Waffeleisen
WO2011050837A1 (en) * 2009-10-28 2011-05-05 Aktiebolaget Skf X-shaped seal for rolling bearing, in particular for rolling bearing used in a wind turbine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10808766B2 (en) 2017-07-31 2020-10-20 Aktiebolaget Skf H-seal mounting tool
US10836023B2 (en) 2017-07-31 2020-11-17 Aktiebolaget Skf Method of using a mounting tool to install an H-Seal in a bearing

Also Published As

Publication number Publication date
EP3115157B1 (de) 2020-09-02

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