EP2277666A1 - Extracteur pour palier de roulement ou analogue - Google Patents

Extracteur pour palier de roulement ou analogue Download PDF

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Publication number
EP2277666A1
EP2277666A1 EP10168699A EP10168699A EP2277666A1 EP 2277666 A1 EP2277666 A1 EP 2277666A1 EP 10168699 A EP10168699 A EP 10168699A EP 10168699 A EP10168699 A EP 10168699A EP 2277666 A1 EP2277666 A1 EP 2277666A1
Authority
EP
European Patent Office
Prior art keywords
arms
wedge
stop
shells
spindle
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Withdrawn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
EP10168699A
Other languages
German (de)
English (en)
Inventor
Wolfgang Kleinbongartz
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.)
Kleinbongartz & Kaiser oHG
Original Assignee
Kleinbongartz & Kaiser oHG
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 Kleinbongartz & Kaiser oHG filed Critical Kleinbongartz & Kaiser oHG
Publication of EP2277666A1 publication Critical patent/EP2277666A1/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Withdrawn legal-status Critical Current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
    • B25B27/062—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 using screws

Definitions

  • the invention relates to an internal extractor with at least two, one end side tied together and the other end thereofsp Dahlbaren by means of a spreading arms, the wedge sits at the end of a pull spindle whose threaded portion protrudes through an opening of the tethered ends associated pressure piece on which a pull nut is supported.
  • the well-known internal extractor consists of two half-shells.
  • the half-shells are made of metal and have at one end a groove into which a ring engages in order to tie the two ends together.
  • the tethered ends are covered by a pressure piece in the form of a sleeve. This forms a pivot bearing for the two arms formed by the half-shells.
  • the other ends of the half-shells have lugs which under a bearing ring of a rolling bearing, z. B. a roller, ball or similar bearing can be brought to pull the bearing from a bearing bore by axial train on a pull spindle.
  • the threaded portion of the pulling spindle can be screwed into a pulling spindle of a counter support, which can be supported on the component from which the bearing is to be pulled out.
  • Such internal extractors are manufactured for rolling bearings for different inner diameters.
  • Each internal extractor is designed for a specific diameter range.
  • the minimum diameter of the diameter region of the bearing ring of the rolling bearing to be deducted is determined by the outer diameter of the projections having the end of the arms in the normal position, in which the two half-shells are substantially parallel to each other and the wedge surfaces of the expanding wedge lie completely against the inclined surfaces of the half-shells.
  • the maximum inner diameter is determined by the length of the inclined surfaces on which the wedge surfaces of the expanding wedge slide along, and the maximum spreadability determined thereby.
  • the traction spindle is externally threaded only over a portion so that the tension nut runs against the end of the external thread when the expanding wedge travels its maximum travel and the arms have reached their maximum spread angle.
  • the invention has for its object to make the generic interior extractor tamper-proof.
  • a movement stop is sufficient to limit the displacement path of the expanding wedge.
  • the pressure spindle has two movement stops, which protrude in diametrical opposite position from the shaft of the tension spindle. These form stop cams, which in each case reach into a groove of one of the two shells, which preferably form the arms. The end of each groove forms an end stop against which the stop cam abuts when an end portion of the wedge surface abuts an end portion of the inclined surface. This prevents that the wedge surface leaves the inclined surface during the displacement of the expanding wedge.
  • the grooves of the half-shells lie in a region of the half-shells, which is formed by an outwardly facing bead.
  • the two, in the basic position to a ring bead complementary bulges form accumulations of material, which compensate for the material weakening caused by the groove.
  • the groove may have a substantially rectangular cross-section.
  • Both the shells, as well as the traction spindle with integrally formed expanding wedge can be formed by forgings or metal die castings.
  • the stop cams are not integrally formed material of the tension spindle, but are formed by the ends of a pin which is inserted in an opening of the pressure spindle.
  • the two grooves are window-like slots of the shells.
  • the internal extractor consists of two arms 1, each formed of a half-shell.
  • the shells can be formed by metal parts, but preferably by forgings.
  • the half-shells 1 form a cavity in the assembled state, in which a tension spindle 3 is inserted.
  • One end of the half-shells 1 forms a groove 11 in which a retaining ring 12 rests.
  • This end of the half-shells 1 is captured by a pressure piece 4 formed by a sleeve.
  • the pressure piece has an opening 6, through which a threaded portion 17 of the tension spindle 3 protrudes.
  • the other end of the half-shells is provided with radially outwardly directed lugs 7.
  • the half-shells 1 also form inclined surfaces 10 against which, in a basic position, the wedge surfaces 9 of an expanding wedge 2 rest.
  • the tensioning spindle 3 which is also formed by a metal pressure piece, but preferably by a forging, carries at one of its ends the expanding wedge 2.
  • the expanding wedge 2 is materially connected to the tensioning spindle 3.
  • the wedge surfaces 9 slide on the inclined surfaces 10, so that the ends 7 carrying the ends of the half-shells are spread apart.
  • the tethered by the retaining ring 12 ends of the half-shells 1 form the pivot bearing.
  • the end 16 of the groove 15 forming the pressure piece 4 forms an end stop 16 for the stop cam 14.
  • the stop cam 14 occurs when the tension spindle 3 by turning a screwed onto the threaded portion 17 tension nut 5, which is supported on the pressure piece 4, is displaced axially. The stop position is reached before the wedge surface 9 leaves the inclined surface 10.
  • the embodiment has two half-shells 1.
  • the expanding wedge 2 consists of two roof-like wedge-shaped surfaces 9.
  • the internal extractor can have three or more shells 1, which are arranged in a uniform angular distribution about the tension spindle 3.
  • the wedge surfaces 9 are formed by planes.
  • the wedge surface 9 can also be formed by a conical surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)
EP10168699A 2009-07-24 2010-07-07 Extracteur pour palier de roulement ou analogue Withdrawn EP2277666A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910026247 DE102009026247A1 (de) 2009-07-24 2009-07-24 Innenauszieher für Wälzlager oder dergleichen

Publications (1)

Publication Number Publication Date
EP2277666A1 true EP2277666A1 (fr) 2011-01-26

Family

ID=42670342

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10168699A Withdrawn EP2277666A1 (fr) 2009-07-24 2010-07-07 Extracteur pour palier de roulement ou analogue

Country Status (2)

Country Link
EP (1) EP2277666A1 (fr)
DE (1) DE102009026247A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106976038A (zh) * 2017-04-12 2017-07-25 广州飞机维修工程有限公司 一种大直径薄壁衬套拔出装置
CN110883730A (zh) * 2018-09-07 2020-03-17 中车大同电力机车有限公司 销套拆卸装置
CN112140050A (zh) * 2019-06-26 2020-12-29 中核检修有限公司 一种阀座拆装工具
FR3118594A1 (fr) * 2021-01-04 2022-07-08 Electric Bike Company Outil d’extraction de bagues de guidage d’amortisseurs de cycle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112757217B (zh) * 2021-02-28 2022-01-14 东台市海鹏船舶配件有限公司 一种拆卸式艉管轴承拆卸装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1778802A (en) * 1928-01-30 1930-10-21 White Motor Co Tool for removing bearing races, bushings, and the like
CH256622A (de) 1945-02-16 1948-08-31 Baecker Wilhelm Innenauszieher für Wälzlager.
DE1638558U (de) 1948-12-31 1952-05-21 Kleinbongartz & Kaiser Innenauszieher zum ausziehen von kugellagern oder aeusseren kugellagerringen.
DE19715004A1 (de) * 1997-04-11 1998-10-15 Nexus Werkzeugfabrik Justus Sc Innenauszieher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1778802A (en) * 1928-01-30 1930-10-21 White Motor Co Tool for removing bearing races, bushings, and the like
CH256622A (de) 1945-02-16 1948-08-31 Baecker Wilhelm Innenauszieher für Wälzlager.
DE1638558U (de) 1948-12-31 1952-05-21 Kleinbongartz & Kaiser Innenauszieher zum ausziehen von kugellagern oder aeusseren kugellagerringen.
DE19715004A1 (de) * 1997-04-11 1998-10-15 Nexus Werkzeugfabrik Justus Sc Innenauszieher

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106976038A (zh) * 2017-04-12 2017-07-25 广州飞机维修工程有限公司 一种大直径薄壁衬套拔出装置
CN110883730A (zh) * 2018-09-07 2020-03-17 中车大同电力机车有限公司 销套拆卸装置
CN112140050A (zh) * 2019-06-26 2020-12-29 中核检修有限公司 一种阀座拆装工具
FR3118594A1 (fr) * 2021-01-04 2022-07-08 Electric Bike Company Outil d’extraction de bagues de guidage d’amortisseurs de cycle

Also Published As

Publication number Publication date
DE102009026247A1 (de) 2011-02-10

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