EP0734815B1 - Outils pour Ôter des paliers - Google Patents

Outils pour Ôter des paliers Download PDF

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Publication number
EP0734815B1
EP0734815B1 EP96103022A EP96103022A EP0734815B1 EP 0734815 B1 EP0734815 B1 EP 0734815B1 EP 96103022 A EP96103022 A EP 96103022A EP 96103022 A EP96103022 A EP 96103022A EP 0734815 B1 EP0734815 B1 EP 0734815B1
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.)
Expired - Lifetime
Application number
EP96103022A
Other languages
German (de)
English (en)
Other versions
EP0734815A1 (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 one gripping sleeve, the several has resilient gripping fingers distributed over its circumference, which on their free ends with radially inward or outward extending gripping elements for Behind the bearing ring are provided, and with an adapter sleeve has a control surface acting against the end regions of the gripping fingers, which with a relative movement between the clamping sleeve and gripping sleeve Gripping elements pushes inwards or outwards.
  • 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 adapter sleeve are usually conical and cause either with a relative movement of the adapter sleeve in the pulling direction of the Bearing rings (DE-GM 94 00 044) or with a relative movement in the opposite direction (DE-AS 12 69 069) a compression of the Gripping fingers, whereby the gripping elements engage behind the bearing rings.
  • the adapter sleeve has an opening diameter at the end of the resilient gripper fingers which is slightly larger than the outer diameter of the bearing ring. This ensures that the bearing ring can easily be removed from the adapter sleeve can be removed and that the gripping fingers by a relatively short movement can be brought into engagement with the bearing ring.
  • a disadvantage of this known Pulling tools is that the gripping sleeve when clamping the gripping fingers in such a position must be held that the gripping fingers extend beyond the bearing ring and the gripping elements during tensioning reach behind the bearing ring through the adapter sleeve. In the event of incorrect handling the gripping sleeve, it is possible for the gripping elements of the gripping fingers are pressed from the outside against the bearing ring by the adapter sleeve, without resorting to it.
  • a puller is known from DE-GM 94 02 355, which also has the features of the preamble of independent claim 1 and forms the closest prior art to the present.
  • This puller is with a tensioning element for tensioning the Gripping elements inside an expansion element located in the gripping sleeve connected, which spreads the gripping elements outwards.
  • This is it possible to use a gripping sleeve in the elastically neutral position the gripper finger has a slightly smaller diameter in the area of the gripper elements has than the bearing ring.
  • the bearing ring presses the gripper fingers outwards until they reach their gripping position to reach.
  • the gripper fingers spring back due to their elasticity inwards so that they can be tightened using the adapter sleeve are in the gripping position engaging behind the bearing ring.
  • this Puller is an additional component due to the expansion element to provide the manufacturing costs and the vulnerability of the tool increased against damage.
  • fasteners projecting outward between the tensioning element and the expansion element There are protrusions that create a risk of injury.
  • the object of the invention is to develop the known removal tools in such a way that without the need for an additional expansion element Snap the gripping fingers into the gripping position as well as the reliable one Release of the removed bearing ring is made possible.
  • the clamping sleeve has a second control surface, which during a relative movement between Clamping sleeve and gripping sleeve presses the gripping fingers inwards and the against an area of the gripper fingers located at a distance from the free end acts.
  • the distance is chosen so that the resilient material of the gripper fingers a resilient between the second control surface and the gripping elements Allows movement of the gripping elements outwards.
  • the adapter sleeve is designed such that it is in the neutral position of the resilient Gripper finger completely releases the bearing ring. This is one easy removal of the bearing ring from the adapter sleeve ensured.
  • the additional one located at a distance from the free end of the gripper fingers Control surface of the clamping sleeve, it is possible to slide the gripper fingers before sliding them on to move the adapter sleeve into a "standby position".
  • In the gripping sleeve has this ready position in the end region of its gripping fingers a diameter that is slightly smaller than the outer diameter of the bearing ring.
  • the removed bearing ring is removed by using both control surfaces completely release the gripping fingers of the gripping sleeve so that the Gripping elements in the relaxed state of the resilient gripper fingers the bearing ring no longer reach behind.
  • every ramp is suitable as a control surface that is against an abutment the gripping elements of the gripping sleeve acts.
  • These are advantageously Control surfaces - as in the prior art - conical and act against the radial displacement of the adapter sleeve relative to the gripping sleeve Gripping elements.
  • the conical control surfaces oppose the pulling direction of the bearing ring, i.e. towards the gripping elements of the gripping fingers.
  • the abutment for the second conical control surface of the adapter sleeve is preferably by a ring collar at the root area of the gripping fingers educated.
  • a stop for the bearing ring can be located within the gripping sleeve be provided, which is preferably annular.
  • the independent claim 7 relates to a puller for a bearing outer ring located in a bore.
  • the characteristics of the The preamble of this claim is from US-A-4,852,235 known.
  • the outside diameter of the gripping elements in the neutral position of the gripper fingers slightly larger than that Inner diameter of the bearing ring to be removed.
  • the subject matter of claim 7 is also characterized by a second control surface.
  • 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 be moved radially outward.
  • the tool shown in FIGS. 1 to 3 consists of a gripping sleeve 1 with four resilient gripping fingers distributed regularly over its circumference 2.
  • the gripping sleeve 1 is for removing tapered roller bearing inner rings 11 provided. For this reason, the inner end areas run the gripper finger 2 is conical.
  • the ends of the gripper fingers 2 face each other radially inwardly extending, claw-shaped gripping elements 3.
  • Of 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 sleeve 6 presses against it with its lower conical control surface 7 the conical peripheral surface 8 of the end region of the gripping sleeve 1.
  • the gripping elements 3 are moved radially inward and engage behind the Rolling the tapered roller bearing inner ring 11.
  • a second conical one Control surface 9 which cooperates with an annular collar 5 of the gripping sleeve 1.
  • the ring collar 5 is located in the root area of the gripping fingers 2 Gripping sleeve 1, i.e. just behind the area where the cylindrical Split gripping sleeve into gripping fingers 2.
  • the collar 5 at the point where circular openings 4 merge into the longitudinal gap 12 in the gripping sleeve wall Separate two gripper fingers 2 from each other.
  • the location of the collar 5 is to be selected on the one hand so that the area between the closed cylindrical section of the clamping sleeve 1 and the collar 5 sufficient Has spring elasticity to deflect the gripping fingers 2 by the pressure of the control surface 9 on the collar 5.
  • the collar 5 must be a sufficiently large distance from End of the gripper fingers 2, so that the gripper fingers 2 between the collar 5 and the gripping elements 3 located at their ends are sufficient Have spring elasticity to spring the gripping elements 3 to the outside to enable.
  • the inner diameter of the gripping sleeve 1 in the area of Gripping elements 3 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 elements 3 are pressed radially outwards until they are in their end position reach behind the largest outer diameter of the tapered roller bearing inner ring 11 (see FIG. 2) and the pull-off process described above is initiated can be.
  • the tool is designed to remove cylindrical roller bearing rings or other non-tapered bearing rings are used End faces or the inner peripheral surfaces of the gripping elements 3 are conical bevel. This conical bevel causes the spreading apart the gripper finger 2 when pushed onto a cylindrical one Bearing ring.
  • the embodiment of the removal tool shown in FIG. 4 has a gripping sleeve 1 with six gripping fingers 2. Near the one with the Gripping elements 3 provided ends of the gripping fingers 2 and approximately in the Area in which the conical peripheral surface 8 in the cylindrical area passes over the gripping sleeve 1, the gripping fingers 2 point radially inwards extending projections 13. 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 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Claims (7)

  1. Extracteur pour bagues de roulements intérieures, en particulier bagues intérieures (11) de roulements à rouleaux coniques, avec un manchon de prise (1) présentant plusieurs doigts de crochet (2) à ressorts répartis sur sa circonférence et dotés à leurs extrémités libres d'éléments de prise (3) s'étendant radialement vers l'intérieur pour aller par l'arrière saisir les bagues de roulement (11), et avec une douille de serrage (6) présentant une surface de commande (7) prenant appui contre les extrémités des doigts de crochet (2) et repoussant les éléments de prise (3) vers l'intérieur lors d'un mouvement relatif entre la douille de serrage (6) et le manchon de prise (1),
    caractérise en ce que
    la douille de serrage (6) présente une deuxième surface de commande (9) qui, lors d'un mouvement relatif entre la douille de serrage (6) et le manchon de prise (1), repousse vers l'intérieur les doigts de crochet (2) et qui prend appui contre une zone écarté des extrémités libres des doigts de crochet (2), l'écartement étant déterminé de telle sorte que le matériau élastique des doigts de crochet (2), entre la deuxième surface de commande (9) et les éléments de prise (3), permette un mouvement de suspension des éléments de prise (3) vers l'extérieur.
  2. Extracteur selon la revendication 1, caractérisé en ce que les surfaces de commande (7,9) présentent une forme conique et génèrent le mouvement des éléments de prise (3) lors d'un déplacement axial de la douille de serrage (6) relativement au manchon de prise (1).
  3. Extracteur selon la revendication 2, caractérisé en ce que les surfaces coniques de commande (7,9) s'ouvrent vers les éléments de prise (3) des doigts de crochet (2).
  4. Extracteur selon la revendication 2 ou 3, caractérisé en ce que le manchon de prise (1) présente, dans la zone des doigts de crochet (2) éloignée de l'extrémité libre, une embase annulaire (5) coopérant avec la deuxième surface conique de commande (9) de la douille de serrage (6).
  5. Extracteur selon au moins une des revendications précitées, caractérisé en ce qu'un taquet pour la bague de roulement (11) est situé dans le manchon de prise (1).
  6. Extracteur selon revendication 5, caractérisé en ce que le taquet est formé par une saillie (13) s'étendant radialement vers l'intérieur.
  7. Extracteur pour bagues de roulements extérieures, avec un élément de prise, présentant plusieurs doigts de crochet à ressort répartis sur toute sa circonférence et dotés à leurs extrémités libres d'éléments de prise s'étendant radialement vers l'extérieur pour aller saisir par l'arrière les bagues de roulement, et avec un élément de serrage présentant une surface de commande prenant appui contre le bout des doigts de crochet et repoussant les éléments de prise vers l'extérieur lors d'un mouvement relatif entre l'élément de serrage et l'élément de prise,
    caractérise en ce que
    l'élément de serrage présente une deuxième surface de commande qui, lors d'un mouvement relatif entre élément de serrage et élément de prise, repousse les doigts de crochet vers l'extérieur et qui prend appui contre une zone écarté de l'extrémité libre des doigts de crochet, l'écartement étant déterminé de telle sorte que le matériau élastique des doigts de crochet, entre la deuxième surface de commande et les éléments de prise, permette un mouvement de suspension des éléments de prise vers l'intérieur.
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 1995-03-25
DE29505146U DE29505146U1 (de) 1995-03-25 1995-03-25 Abziehwerkzeug für Lagerringe

Publications (2)

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

Families Citing this family (4)

* 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
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

Family Cites Families (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
DE4114994A1 (de) * 1991-05-08 1992-11-12 Schrem Werkzeugfab Albert Abziehvorrichtung zum abziehen eines waelzlagers von einer welle
US5276951A (en) * 1993-01-08 1994-01-11 Hpc, Inc. Tubular lock puller
DE9402355U1 (de) * 1994-02-12 1994-03-31 Kemmerich Hugo Abziehwerkzeug für Wälzlagerringe

Cited By (2)

* 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

Also Published As

Publication number Publication date
DE29505146U1 (de) 1995-05-18
DE59600726D1 (de) 1998-12-03
EP0734815A1 (fr) 1996-10-02

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