EP0734815A1 - Outils pour Ôter des paliers - Google Patents

Outils pour Ôter des paliers Download PDF

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Publication number
EP0734815A1
EP0734815A1 EP96103022A EP96103022A EP0734815A1 EP 0734815 A1 EP0734815 A1 EP 0734815A1 EP 96103022 A EP96103022 A EP 96103022A EP 96103022 A EP96103022 A EP 96103022A EP 0734815 A1 EP0734815 A1 EP 0734815A1
Authority
EP
European Patent Office
Prior art keywords
gripping
sleeve
fingers
control surface
elements
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
EP96103022A
Other languages
German (de)
English (en)
Other versions
EP0734815B1 (fr
Inventor
Hans Joachim Peffeköver
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.)
Johann Peffekover & Co KG Werkzeugfabrik GmbH
Original Assignee
Johann Peffekover & Co KG Werkzeugfabrik GmbH
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 Johann Peffekover & Co KG Werkzeugfabrik GmbH filed Critical Johann Peffekover & Co KG Werkzeugfabrik GmbH
Publication of EP0734815A1 publication Critical patent/EP0734815A1/fr
Application granted granted Critical
Publication of EP0734815B1 publication Critical patent/EP0734815B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 invention relates to a removal tool for bearing rings, in particular tapered roller bearing inner rings, with a gripping sleeve which has a plurality of resilient gripping fingers distributed over its circumference, which are provided at their free ends with gripping elements which extend radially inwards for engaging behind the bearing ring, and with a clamping sleeve which has a control surface which acts against the end regions of the gripping fingers and which presses the gripping elements inwards when there is a relative movement between the clamping sleeve and the gripping sleeve.
  • the adapter sleeve is usually a cylindrical component, the gripping elements are usually claw-shaped ends of the gripping fingers.
  • the control surfaces of the clamping sleeve are generally conical and either compress the gripping fingers when the clamping sleeve moves relative to the bearing ring (DE-GM 94 00 044) or when it moves in the opposite direction (DE-AS 12 69 069). whereby the gripping elements engage behind the bearing rings.
  • a pulling device in which an expansion element located in the gripping sleeve is connected to a tensioning element for tensioning the gripping elements, which expands the gripping elements to the outside.
  • an additional component is to be provided by the expansion element, which increases the manufacturing costs and the susceptibility of the tool to damage.
  • connecting elements between the tensioning element and the expansion element can result in projections projecting outwards, which give rise to a risk of injury.
  • the object of the invention is to develop the known pulling tools in such a way that the snap-in of the gripping fingers in the gripping position and the reliable release of the removed bearing ring are made possible without the need for an additional spreading element.
  • the clamping sleeve has a second control surface which presses the gripping fingers inward when there is a relative movement between the clamping sleeve and gripping sleeve and which acts against a region of the gripping fingers which is at a distance from the free end.
  • the distance is selected so that the resilient material of the gripping fingers between the second control surface and the gripping elements enables a resilient movement of the gripping elements to the outside.
  • the clamping sleeve is designed such that it completely releases the bearing ring in the neutral position of the resilient gripping fingers. This ensures easy removal of the bearing ring from the adapter sleeve.
  • the additional control surface of the clamping sleeve which is at a distance from the free end of the gripping fingers, makes it possible to move the gripping fingers into a "ready position" before pushing on the clamping sleeve. In this ready position, the gripping sleeve has a diameter in the end region of its gripping fingers that is slightly smaller than the outer diameter of the bearing ring.
  • the gripper finger ends can continue to spring outwards, it is possible to slide the gripping sleeve over the bearing ring, the gripping elements snapping behind the outer diameter of the bearing ring in the gripping position of the gripping sleeve and thus engaging behind the bearing ring. Subsequently, by further displacement of the clamping sleeve relative to the gripping sleeve with the first control surface, the gripping finger ends can be pressed against the bearing ring and the removal process can be initiated.
  • each ramp is suitable as a control surface that acts against an abutment of the gripping elements of the gripping sleeve.
  • the control surfaces are advantageously conical and act against the gripping elements when the clamping sleeve is displaced radially relative to the gripping sleeve.
  • the conical control surfaces open against the pulling direction of the bearing ring, ie towards the gripping elements of the gripping fingers. By moving the clamping sleeve against the pulling direction, the gripping elements are deflected inwards.
  • the abutment for the second conical control surface of the clamping sleeve is preferably formed by an annular collar at the root area of the gripping fingers.
  • a stop for the bearing ring can be provided within the gripping sleeve, which is preferably annular.
  • the independent claim 7 relates to a removal tool for a bearing outer ring located in a bore.
  • the operation of the two control surfaces of the clamping part is identical to the operation of the control surfaces of the clamping sleeve from claim 1, with the difference that the gripping elements are moved radially outwards.
  • the tool shown in FIGS. 1 to 3 consists of a gripping sleeve 1 with four resilient gripping fingers 2 distributed regularly over its circumference.
  • the gripping sleeve 1 is provided for pulling off tapered roller bearing inner rings 11. For this reason, the inner end regions of the gripper fingers 2 are tapered.
  • the ends of the gripper fingers 2 face each other radially inwardly extending, claw-shaped gripping elements 3.
  • the upper area of the gripping sleeve 1 is provided with a connecting thread 10 onto which a puller spindle holder (not shown) can be screwed.
  • FIG. 2 The removal process with this gripping sleeve 1 is shown in FIG. 2.
  • the clamping cone 6 presses with its lower conical control surface 7 against the conical circumferential surface 8 of the end region of the gripping sleeve 1.
  • the gripping elements 3 are moved radially inward and engage behind the rollers of the tapered roller bearing inner ring 11.
  • the position of the collar 5 is to be chosen on the one hand such that the area between the closed cylindrical section of the clamping sleeve 1 and the collar 5 has sufficient elasticity to allow the gripping fingers 2 to deflect due to the pressure of the control surface 9 on the collar 5.
  • the collar 5 must be at a sufficiently large distance from the end of the gripping fingers 2 so that the gripping fingers 2 between the collar 5 and the gripping elements 3 located at their ends have sufficient elasticity to allow the gripping elements 3 to spring outwards.
  • the inside diameter of the gripping sleeve 1 in the area of its gripping elements 3 is a little smaller than the largest outside diameter of the Tapered roller bearing inner ring 11 at the lower end of its rollers.
  • the gripping sleeve 1 is pushed onto the tapered roller bearing inner ring 11, the gripping elements 3 are pressed radially outward until they reach behind the largest outer diameter of the tapered roller bearing inner ring 11 in their end position (see FIG. 2) and the pulling-off process described above can be initiated.
  • the end faces or the inner circumferential surfaces of the gripping elements 3 must be chamfered conically. This conical bevel causes the gripping fingers 2 to be pushed apart when pushed onto a cylindrical bearing ring.
  • the clamping sleeve 6 To remove the tapered roller bearing inner ring 11 from the gripping sleeve 1, the clamping sleeve 6 must be moved into the neutral position, in which the gripping fingers 2 are moved into the position of the largest opening of the gripping elements 3 by their inherent elasticity. In this position, shown in FIG. 3, neither the first control surface 7 nor the second control surface 9 exerts a radial pressure on the gripping fingers, and the tapered roller bearing inner ring 11 can simply be removed from the gripping sleeve.
  • the embodiment of the removal tool shown in FIG. 4 has a gripping sleeve 1 with six gripping fingers 2.
  • the gripping fingers 2 In the vicinity of the ends of the gripping fingers 2 provided with the gripping elements 3 and approximately in the region in which the conical peripheral surface 8 merges into the cylindrical region of the gripping sleeve 1, the gripping fingers 2 have projections 13 extending radially inwards. These projections 13 form a stop for the tapered roller bearing inner ring 11. This ensures that the tapered roller bearing inner ring 11 is not inserted too far into the gripping sleeve 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP96103022A 1995-03-25 1996-02-29 Outils pour Ôter des paliers Expired - Lifetime EP0734815B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29505146U DE29505146U1 (de) 1995-03-25 1995-03-25 Abziehwerkzeug für Lagerringe
DE29505146U 1995-03-25

Publications (2)

Publication Number Publication Date
EP0734815A1 true EP0734815A1 (fr) 1996-10-02
EP0734815B1 EP0734815B1 (fr) 1998-10-28

Family

ID=8005928

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103022A Expired - Lifetime EP0734815B1 (fr) 1995-03-25 1996-02-29 Outils pour Ôter des paliers

Country Status (2)

Country Link
EP (1) EP0734815B1 (fr)
DE (2) DE29505146U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478757A (en) * 2010-03-16 2011-09-21 Ho Chi Entpr Co Ltd Bearing puller
CN106903648A (zh) * 2017-04-25 2017-06-30 浙江日发纺机技术有限公司 一种锭子轴承拆卸装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010010953U1 (de) * 2010-08-03 2011-11-23 Karl-Heinz Weitner Vorrichtung zum Verschieben eines Körpers
CN106002830A (zh) * 2016-08-09 2016-10-12 河南柴油机重工有限责任公司 发动机气门阀座取出装置
CN108098310B (zh) * 2017-12-30 2023-07-25 浙江崴光工贸有限公司 一种自动压装输出座压装产品的压装机
DE102019214350A1 (de) * 2019-09-20 2021-03-25 Zf Friedrichshafen Ag Abziehvorrichtung sowie Verfahren zum Abziehen eines Innenrings eines Wälzlagers

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2154867A (en) * 1936-11-17 1939-04-18 James H Robinson Bushing puller
DE1269069B (de) * 1962-08-23 1968-05-22 Albert Schrem Werkzeugfabrik Abziehvorrichtung zum Abziehen von Waelzlagern oder Teilen davon von einer Welle
US4852235A (en) * 1988-08-19 1989-08-01 Trease Dwaine A Bearing puller
EP0512498A1 (fr) * 1991-05-08 1992-11-11 ALBERT SCHREM WERKZEUGFABRIK GmbH Outil pour ôter un palier d'un axe
US5276951A (en) * 1993-01-08 1994-01-11 Hpc, Inc. Tubular lock puller
DE9402355U1 (de) * 1994-02-12 1994-03-31 Kemmerich, Hugo, 51789 Lindlar Abziehwerkzeug für Wälzlagerringe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2154867A (en) * 1936-11-17 1939-04-18 James H Robinson Bushing puller
DE1269069B (de) * 1962-08-23 1968-05-22 Albert Schrem Werkzeugfabrik Abziehvorrichtung zum Abziehen von Waelzlagern oder Teilen davon von einer Welle
US4852235A (en) * 1988-08-19 1989-08-01 Trease Dwaine A Bearing puller
EP0512498A1 (fr) * 1991-05-08 1992-11-11 ALBERT SCHREM WERKZEUGFABRIK GmbH Outil pour ôter un palier d'un axe
US5276951A (en) * 1993-01-08 1994-01-11 Hpc, Inc. Tubular lock puller
DE9402355U1 (de) * 1994-02-12 1994-03-31 Kemmerich, Hugo, 51789 Lindlar Abziehwerkzeug für Wälzlagerringe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2478757A (en) * 2010-03-16 2011-09-21 Ho Chi Entpr Co Ltd Bearing puller
CN106903648A (zh) * 2017-04-25 2017-06-30 浙江日发纺机技术有限公司 一种锭子轴承拆卸装置

Also Published As

Publication number Publication date
DE29505146U1 (de) 1995-05-18
DE59600726D1 (de) 1998-12-03
EP0734815B1 (fr) 1998-10-28

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