EP0258594A1 - Clamping device for the bearing rings of wheel flange hubs - Google Patents

Clamping device for the bearing rings of wheel flange hubs Download PDF

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Publication number
EP0258594A1
EP0258594A1 EP87110334A EP87110334A EP0258594A1 EP 0258594 A1 EP0258594 A1 EP 0258594A1 EP 87110334 A EP87110334 A EP 87110334A EP 87110334 A EP87110334 A EP 87110334A EP 0258594 A1 EP0258594 A1 EP 0258594A1
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EP
European Patent Office
Prior art keywords
clamping
jaws
clamping jaws
clamping device
longitudinal
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EP87110334A
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German (de)
French (fr)
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EP0258594B1 (en
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Horst Klann
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Individual
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    • 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 a clamping device for removing bearing rings from wheel flange hubs with two clamping jaws which can be moved relative to one another by threaded engagements and which are each provided with recesses opposite one another in a common plane.
  • Devices of this type are required and used to pull off inner rings of ball bearings pressed onto wheel flange hubs of motor vehicles.
  • the two clamping jaws consisting of essentially semicircular disks are parallel by two in a diametrical tangential position mutually extending arrangement on the clamping jaws threaded spindles can be pressed against each other.
  • the two jaws are each provided on the side facing each other with semicircular recesses, which can be more or less appropriately attached and braced on the end face of the collar of the bearing ring to be removed if a corresponding ring groove is present.
  • an additional drawing tool which has two threaded bolts attached to a beam, which can be screwed into the threaded bores of the two clamping jaws, a pressure spindle being arranged in the middle of the beam, with which the flange hub can be axially fixed with the help of a pressure piece Direction can be pushed out of the bearing ring.
  • the invention is based on the object of improving a device of the type mentioned in such a way that it is univer sell usable, easy to handle, attachable to different bearing rings of wheel flange hubs and, if necessary, can be used or used both with a mechanical pulling device having a pressure spindle and on pneumatic, hydraulic or mechanical presses.
  • the two clamping jaws each consist of equally thick, flat, plate-shaped bodies and are arranged in a form-fitting manner in a flat, flat clamping frame consisting of two parallel longitudinal legs and at least one cross leg connecting them such that at least one clamping jaw is movable along the longitudinal limbs and the middle of a threaded spindle seated in a threaded bore of the transverse limb can be pressed against the other by a stop or by screwing to the longitudinal limbs immovable clamping jaw.
  • the device is not only easy to handle and space-saving, but it also has the advantage that the attachment of the clamping jaws on the bearing ring to be removed can be seen and controlled as easily as the removal process itself.
  • Another important advantage of the this design is achieved consists in the fact that the entire device with a clamped bearing ring still seated on the bearing hub of a wheel flange hub can easily be placed on the work table of a pneumatic, hydraulic or mechanical press to push the wheel flange hub downwards.
  • the possibility is given to press out wheel flange hubs with a diameter of 12 cm and more on the press table of a press from the clamped bearing ring, in which the spacer blocks outside the diameter of the wheel flange can be placed as a support under the device .
  • the configuration of the innovation according to claim 4 is provided, the configurations according to claims 5, 6 and 7 serving, on the one hand, to simplify handling and, on the other hand, to increase functional reliability and vigorous resilience.
  • the device can also be used in combination with already known drawing devices or with a drawing device designed as a pull bell or pull bridge.
  • the clamping device 1 for removing bearing rings 2 from wheel flange hubs 3 consists of two clamping jaws 4 and 5, which are arranged between two parallel legs 6 and 7, which are connected at one end by a cross leg 8.
  • the longitudinal legs On their mutually facing inner sides, the longitudinal legs each have spring-like guide ribs 9 and 10, which positively engage in correspondingly profiled lateral longitudinal grooves 11 or 12 or 13 and 14 of the two clamping jaws 4 and 5.
  • the cross leg 8 is provided on both sides with grooves 8 ', in which the guide ribs 9 and 10 of the two longitudinal legs 6, 7 engage in a form-fitting manner, and contribute to the stiffening of the stenter.
  • the clamping jaw 5 is on the guide ribs 9 and 10 between the clamping jaw 4 on the one hand and the cross leg 8, which is also at the other end the two longitudinal legs 6 and 7 is screwed by screws 16, about 30 mm in the longitudinal direction back and forth.
  • the two clamping jaws 5 and 6 each consist of flat, plate-like bodies of the same thickness and that both the longitudinal legs 6 and 7 and the transverse leg 8 have the same thickness as the clamping plates 4 and 5, so that their flat surfaces are each in a common plane.
  • the two jaws 4 and 5 are each provided with semicircular recesses 17 and 18, each of which has a semicircular, rectangular or square in cross-section, spring-like edge rib 19 or 20, which for the positive reception different on the Outer shape of different bearing rings matched clamping shells 21 and 22 and 23 serve.
  • the longitudinal displacement of the clamping jaw 5 takes place by rotating a threaded spindle 24, which is seated in a threaded bore 25 of the transverse leg 8 and the front end of which is rotatably fastened by means of an O-ring 26 in an end blind bore 27 of the clamping jaw 5.
  • a toggle 28 at its free end.
  • the two formed as a semicircular body clamping shells 21 and 22 and also the clamping shells 23 and 23 ⁇ of Fig. 2 are provided on their circumference with an annular groove 29 which is shaped in profile so that it one of the edge ribs 19 or 20 of the two clamping jaws 4 or 5 can be positively but with a certain radial play, which enables exact centering on the bearing ring 2.
  • the two clamping shells 21 and 22 are each provided on their inside with a semicircular profile, inwardly projecting ring rib 30, the clamping shells 23 and 23 ⁇ have an inwardly projecting gripper nose 31 on their lower edges, which in corresponding recesses 32 (Fig.
  • a wheel flange hub 3 can engage behind the front of the bearing ring 2 to be removed, as shown in FIG. 2.
  • bearing rings 2 which have a ball groove 2 ⁇ on their circumference
  • clamping shells 21 and 22 are firmly clamped in the clamping device 1, which have correspondingly profiled ring ribs 30 on their inner sides, as shown in FIG. 3.
  • a pull-off bell 33 can be used, as shown in FIG.
  • the wheel flange hub 3 can be pressed out of the bearing ring 2 by means of a pressure spindle 41, which is rotatably seated in a central threaded bore 43 of the neck of the pull-off bell by means of a toggle 42, by means of a pressure piece 45 placed on the end face of the hollow hub 44. It is expedient to clamp the clamping device 1, for example in a vice, in order to be able to apply the necessary torque more easily to the threaded spindle 41.
  • annular flange 34 is provided with elongated holes 36 and 37 for pushing through the screws 38 so that centering of the pull-off bell 33 to the clamped-in wheel flange hub 2 is possible.
  • a pull-off bell or similar pull-off device for example a pull-off bridge
  • the clamping device 1 with the help of two spacer blocks 50 and 51 on the press table 52 one not further to set the press of any design and function and to push the hollow hub 44 out of the bearing ring 2 with the press ram 53 using a suitable pressure piece 54. It is understood that one can perform the pull-off process more easily with a hydraulically or pneumatically operated or with an eccentric press, which is able to apply several tons of pressure, than with a pull-off bell 33 or a similar pull-off device.
  • the clamping device 1 is designed such that the surfaces of both the clamping jaws 4 and 5 as well as the longitudinal legs 6 and 7 forming a clamping frame each form smooth planes.
  • at least the length or the width of the tensioning device 1 is chosen so large that it projects beyond the largest possible diameter of a wheel flange hub 3 by at least 4 cm, so that the two required spacer blocks 50 and 51 can be placed outside the wheel flange hub.
  • FIGS. 2 and 3 It can be seen from FIGS. 2 and 3 that the pulling-off process can be easily observed from above in one case as in the other.
  • clamping shells 21, 22 and 23, 23 ⁇ are available so that the clamping device 1 can be used universally. Due to the solid and flat design, the frame-like construction has a very high strength, so that high compressive forces can be absorbed or applied both in the clamping direction and in the pulling direction, with the possibility at any time, by appropriate rotation of the threaded spindle 24, the compressive stress with which the bearing rings to be removed are clamped in the device to increase.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Clamps And Clips (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

1. A clamping device for removing bearing rings from wheel flange hubs and having, adapted for movement relatively to each other by engagement of screwthreads, two clamping jaws (4, 5) which are provided with recesses disposed opposite each other in a common plane, the two clamping jaws (4, 5) being form-lockingly guided on two parallel guide rails (6, 7) on which there is a further transverse member (8), one clamping jaw (5) being capable of being pressed by a screwthreaded spindle (24) seated in a screwthreaded bore (25) in the cross-member (8) and against the other clamping jaw (4) which is fixed on the guide members by screwed joints, characterised in that the two clamping jaws (4, 5) consist of plate-like members of identical thickness, provided in each case with at least approximately semi-circular cut-outs (17, 18), and in that the two clamping jaws (4, 5) are disposed between two longitudinal members (6, 7) of identical thickness which are bolted at one end on the fixed clamping jaw (4) and at the other end on the likewise equally thick cross-member (8) disposed between them, to form a flat plane clamping frame, and in that the two longitudinal members (6, 7) are in each case form-lockingly connected by tongue-groove guides to the two clamping jaws (4, 5) and in that for form-locking interchangeable insertion into the cut-outs (17, 18) in the clamping jaws (4, 5), pairwise identically constructed and substantially semi-circular clamping shells (21, 22, 23, 23') are provided which have radially inwardly projecting profiled ribs (30) and/or gripper projections, which can be connected to the clamping jaws (4, 5) by tongue-and-groove engagement (19, 20, 29).

Description

Die Erfindung betrifft eine Spannvorrichtung zum Abziehen von Lagerringen von Radflanschnaben mit zwei durch Gewindeingrif­fe relativ zueinander beweglichen Spannbacken, die jeweils mit sich in einer gemeinsamen Ebene gegenüberstehenden Aus­nehmungen versehen sind.The invention relates to a clamping device for removing bearing rings from wheel flange hubs with two clamping jaws which can be moved relative to one another by threaded engagements and which are each provided with recesses opposite one another in a common plane.

Derartige Vorrichtungen werden zum Abziehen von auf Radflansch­naben von Kraftfahrzeugen aufgepreßten Innenringen von Ku­gellagern benötigt und benutzt.
Bei einer bekannten Vorrichtung dieser Art sind die beiden aus im wesentlichen halbkreisförmigen Scheiben bestehenden Spannbacken durch zwei in diametraler Tangentiallage parallel zueinander verlaufenden Anordnung an den Spannbacken befestigte Gewindespindeln gegeneinander preßbar. Die beiden Spannbacken sind jeweils auf den einander zugekehrten Seite mit halbrun­den Ausnehmungen versehen, welche stirnseitig am Bund des abzuziehenden Lagerringes mehr oder weniger passend angesetzt und verspannt werden können, wenn eine entsprechende Ringrille vorhanden ist. Zum eigentlichen Abziehen des Lagerringes wird ein zusätzliches Ziehwerkzeug benötigt, das zwei an einem Balken befestigte Gewindebolzen aufweist, die in Gewindebohrungen der beiden Spannbacken einschraubbar sind, wobei in der Mitte des Balkens eine Druckspindel angeordnet ist, mit der mit Hilfe eines Druckstückes die Flanschnabe in axialer Richtung aus dem Lagerring herausdrückt werden kann.Devices of this type are required and used to pull off inner rings of ball bearings pressed onto wheel flange hubs of motor vehicles.
In a known device of this type, the two clamping jaws consisting of essentially semicircular disks are parallel by two in a diametrical tangential position mutually extending arrangement on the clamping jaws threaded spindles can be pressed against each other. The two jaws are each provided on the side facing each other with semicircular recesses, which can be more or less appropriately attached and braced on the end face of the collar of the bearing ring to be removed if a corresponding ring groove is present. For the actual removal of the bearing ring, an additional drawing tool is required, which has two threaded bolts attached to a beam, which can be screwed into the threaded bores of the two clamping jaws, a pressure spindle being arranged in the middle of the beam, with which the flange hub can be axially fixed with the help of a pressure piece Direction can be pushed out of the bearing ring.

Abgesehen davon, daß diese bekannte Vorrichtung nicht uni­versell einsetzbar ist, weil ihre Spannbacken nur auf wenige der in der Praxis vorkommende Lagerringe passen, ist auch die hier zu verwendende Abziehvorrichtung insbesondere dann unbefriedigend, wenn sehr hohe Druckkräfte zum Herausdrücken der Lagernabe aus dem Lagerring aufgewendet werden müssen. Häufig ist mit den bekannten Vorrichtungen ein Lösen bzw. Abziehen des inneren Lagerringes eines Wälzlagers von der Hohlnabe eines Radflansches nicht möglich.In addition to the fact that this known device is not universally applicable because its clamping jaws only fit a few of the bearing rings that occur in practice, the pulling device to be used here is also unsatisfactory in particular when very high compressive forces are used to push the bearing hub out of the bearing ring have to. It is often not possible with the known devices to detach or pull off the inner bearing ring of a rolling bearing from the hollow hub of a wheel flange.

Der Erfindung liegt die Aufgabe zu Grunde, eine Vorrichtung der eingangs genannten Art derart zu verbessern, daß sie univer­ sell einsetzbar, leicht handhabbar, an unterschiedliche Lager­ringe von Radflanschnaben ansetzbar und bedarfsweise sowohl mit einer mechanischen, eine Druckspindel aufweisenden Abzieh­vorrichtung, als auch auf pneumatischen, hydraulischen oder mechanischen Pressen verwendbar bzw. einsetzbar ist.The invention is based on the object of improving a device of the type mentioned in such a way that it is univer sell usable, easy to handle, attachable to different bearing rings of wheel flange hubs and, if necessary, can be used or used both with a mechanical pulling device having a pressure spindle and on pneumatic, hydraulic or mechanical presses.

Gelöst wird diese Aufgabe nach der Erfindung im wesentlichen dadurch, daß die beiden Spannbacken jeweils aus gleich dicken, flachen, plattenförmigen Körpern bestehen und formschlüssig in einem aus zwei parallelen Längsschenkeln und wenigstens einem diese verbindenden Querschenkel bestehenden flachen, ebenen Spannrahmen derart angeordnet sind, daß wenigstens eine Spannbacke entlang der Längsschenkel beweglich und mittes einer in einer Gewindebohrung des Querschenkels sitzenden Gewindespindel gegen die andere durch einen Anschlag oder durch Verschraubung mit den Längsschenkeln unbewegliche Spann­backe preßbar ist.This object is essentially achieved in that the two clamping jaws each consist of equally thick, flat, plate-shaped bodies and are arranged in a form-fitting manner in a flat, flat clamping frame consisting of two parallel longitudinal legs and at least one cross leg connecting them such that at least one clamping jaw is movable along the longitudinal limbs and the middle of a threaded spindle seated in a threaded bore of the transverse limb can be pressed against the other by a stop or by screwing to the longitudinal limbs immovable clamping jaw.

Durch die flache Bauweise ist die Vorrichtung nicht nur leicht handbar und platzsparend aufgebaut, sondern sie bietet auch den Vorteil, daß das Ansetzen der Spannbacken an dem abzuzie­henden Lagerring ebenso gut einsehbar und damit kontrollier­bar ist, wie der Abziehvorgang selbst. Ein weiterer wichtiger Vorteil der durch diese Bauform erzielt wird, besteht darin, daß die gesamte Vorrichtung mit einem eingespannten, noch auf der Lagernabe einer Radflanschnabe sitzenden Lagerring leicht auf den Arbeitstisch einer pneumatischen, hydraulischen oder mechanischen Presse gesetzt werden kann, um die Radflansch­nabe nach unten herauszudrücken.Due to the flat design, the device is not only easy to handle and space-saving, but it also has the advantage that the attachment of the clamping jaws on the bearing ring to be removed can be seen and controlled as easily as the removal process itself. Another important advantage of the this design is achieved consists in the fact that the entire device with a clamped bearing ring still seated on the bearing hub of a wheel flange hub can easily be placed on the work table of a pneumatic, hydraulic or mechanical press to push the wheel flange hub downwards.

Um dabei eine gute Auflage der Vorrichtung auf dem Preßtisch bzw. auf Distanzklötzen des Preßtisches zu erzielen, ist die Ausgestaltung der Erfindung gemäß Anspruch 2 vorgesehen.In order to achieve a good support of the device on the press table or on spacer blocks of the press table, the embodiment of the invention is provided according to claim 2.

Durch die Ausgestaltung der Erfindung gemäß Anspruch 3 ist die Möglichkeit gegeben, Radflanschnaben mit einem Durchmesser von 12 cm und mehr auf dem Preßtisch einer Presse aus dem eingespannten Lagerring herauszupressen, in dem die Distanz­klötzte außerhalb des Durchmessers des Radflansches als Auflage unter die Vorrichtung gesetzt werden können.By designing the invention according to claim 3, the possibility is given to press out wheel flange hubs with a diameter of 12 cm and more on the press table of a press from the clamped bearing ring, in which the spacer blocks outside the diameter of the wheel flange can be placed as a support under the device .

Um unterschiedliche Lagerringe von unterschiedlichen Radflansch­naben abziehen zu können, ist die Ausgestaltung der Neuerung gemäß Anspruch 4 vorgesehen, wobei die Ausgestaltungen nach den Ansprüchen 5, 6 und 7 einerseits einer Vereinfachung der Handhabung und andererseits einer Erhöhung der Funktionssicher­heit bzw. kräftemäßigen Belastbarkeit dienen. Mit Hilfe der Ausgestaltungen nach Anspruch 8 und 9 läßt sich die Vorrichtung auch in Kombination mit bereits bekannten bzw. mit einer als Ziehglocke oder als Ziehbrücke ausgebildeten Ziehvorrichtung verwenden.In order to be able to pull off different bearing rings from different wheel flange hubs, the configuration of the innovation according to claim 4 is provided, the configurations according to claims 5, 6 and 7 serving, on the one hand, to simplify handling and, on the other hand, to increase functional reliability and vigorous resilience. With the help of the configurations according to claims 8 and 9, the device can also be used in combination with already known drawing devices or with a drawing device designed as a pull bell or pull bridge.

Anhand der Zeichnung wird im folgenden ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigt:

  • Fig. 1 in perspektivischer Explosionsdarstellung die erfindungs­gemäße Spannvorrichtung mit auswechselbaren Spannschalen, einer Abziehglocke und einer Radflanschnabe mit einem abzuziehenden Lagerring;
  • Fig. 2 die erfindungsgemäße Spannvorrichtung im Schnitt mit einem auf einer Radflanschnabe sitzenden, eingespannten Lagerring und mit aufgesetzter Ziehglocke;
  • Fig. 3 im Schnitt die auf zwei Distanzklötzen eines Pressen­tisches aufsitzende Spannvorrichtung mit eingespanntem Lagerring und stirnseitig von oben auf die Radflanschnabe einwirkenden Preßstempel.
An exemplary embodiment of the invention is explained in more detail below with reference to the drawing. It shows:
  • Figure 1 is a perspective exploded view of the clamping device according to the invention with interchangeable clamping shells, a pull bell and a wheel flange hub with a bearing ring to be removed.
  • 2 shows the tensioning device according to the invention in section with a clamped bearing ring seated on a wheel flange hub and with a pull bell attached;
  • Fig. 3 in section, the clamping device seated on two spacer blocks of a press table with a clamped bearing ring and press ram acting on the end of the wheel flange hub from above.

Die erfindungsgemäße Spannvorrichtung 1 zum Abziehen von Lagerringen 2 von Radflanschnaben 3 besteht aus zwei Spann­backen 4 und 5, die zwischen zwei parallel zueinander verlau­fenden Längsschenkeln 6 und 7 angeordnet, welche am einen Ende durch einen Querschenkel 8 miteinander verbunden sind. Auf ihren einander zugekehrten Innenseiten weisen die Längsschen­kel jeweils federartige Führungsrippen 9 bzw. 10 auf, welche formschlüssig in entsprechend profilierte seitliche Längsnuten 11 bzw. 12 bzw. 13 und 14 der beiden Spannbacken 4 und 5 formschlüssig eingreifen. Auch der Querschenkel 8 ist beidseitig mit Nuten 8ʹ versehen, in welche die Führungsrippen 9 und 10 der beiden Längsschenkel 6, 7 formschlüssig eingreifen, und zur Versteifung des Spannrahmens beitragen. Während die Spannbacke 4 mit den beiden Längsschenkeln 6 und 7 durch querverlaufende Schrauben 16 verschraubt und somit fest mit ihnen verbindung ist, ist die Spannbacke 5 auf den Führungsrippen 9 und 10 zwischen der Spannbacke 4 einerseits und dem Quer­schenkel 8, der ebenfalls am anderen Ende mit den beiden Längsschenkeln 6 und 7 durch Schrauben 16 verschraubt ist, um etwa 30 mm in Längsrichtung hin und her schiebbar. Es ist aus Fig. 1 erkennbar, daß die beiden Spannbacken 5 und 6 jeweils aus gleich dicken, flachen, plattenartigen Körpern bestehen und daß sowohl die beiden Längsschenkel 6 und 7 als auch der Querschenkel 8 die gleiche Dicke wie die Spannplatten 4 und 5 aufweisen, sodaß ihre flachseitigen Oberflächen jeweils in einer gemeinsamen Ebene liegen. An den einander zugekehr­ten Seiten sind die beiden Spannbacken 4 und 5 jeweils mit halbrunden Ausnehmungen 17 bzw. 18 versehen, die jeweils eine halbkreisförmige, im Querschnitt rechteckige bzw. quadra­tische, federartige Randrippe 19 bzw. 20 aufweisen, welche zur formschlüssigen Aufnahme unterschiedlicher, auf die äußere Form unterschiedlicher Lagerringe abgestimmte Spannschalen 21 und 22 bzw. 23 dienen.
Die Längsverschiebung der Spannbacke 5 geschieht durch das Drehen einer Gewindespindel 24, die in einer Gewindebohrung 25 des Querschenkels 8 sitzt und deren vorderes Ende mittels eines O-Ringes 26 in einer stirnseitigen Sackbohrung 27 der Spannbacke 5 drehbar befestigt ist. Um auf die Gewindespindel 24 eine großes Drehmoment ausüben zu können, ist diese an ihrem freien Ende mit einem Knebel 28 versehen.The clamping device 1 according to the invention for removing bearing rings 2 from wheel flange hubs 3 consists of two clamping jaws 4 and 5, which are arranged between two parallel legs 6 and 7, which are connected at one end by a cross leg 8. On their mutually facing inner sides, the longitudinal legs each have spring-like guide ribs 9 and 10, which positively engage in correspondingly profiled lateral longitudinal grooves 11 or 12 or 13 and 14 of the two clamping jaws 4 and 5. The cross leg 8 is provided on both sides with grooves 8 ', in which the guide ribs 9 and 10 of the two longitudinal legs 6, 7 engage in a form-fitting manner, and contribute to the stiffening of the stenter. While the clamping jaw 4 is screwed to the two longitudinal legs 6 and 7 by transverse screws 16 and is thus firmly connected to them, the clamping jaw 5 is on the guide ribs 9 and 10 between the clamping jaw 4 on the one hand and the cross leg 8, which is also at the other end the two longitudinal legs 6 and 7 is screwed by screws 16, about 30 mm in the longitudinal direction back and forth. 1 that the two clamping jaws 5 and 6 each consist of flat, plate-like bodies of the same thickness and that both the longitudinal legs 6 and 7 and the transverse leg 8 have the same thickness as the clamping plates 4 and 5, so that their flat surfaces are each in a common plane. On the mutually facing sides, the two jaws 4 and 5 are each provided with semicircular recesses 17 and 18, each of which has a semicircular, rectangular or square in cross-section, spring-like edge rib 19 or 20, which for the positive reception different on the Outer shape of different bearing rings matched clamping shells 21 and 22 and 23 serve.
The longitudinal displacement of the clamping jaw 5 takes place by rotating a threaded spindle 24, which is seated in a threaded bore 25 of the transverse leg 8 and the front end of which is rotatably fastened by means of an O-ring 26 in an end blind bore 27 of the clamping jaw 5. To on the threaded spindle 24 to be able to exert a large torque, this is provided with a toggle 28 at its free end.

Wie ebenfalls aus Fig. 1 ersichtlich ist, sind die beiden als halbkreisförmige Körper ausgebildeten Spannschalen 21 und 22 sowie auch die Spannschalen 23 und 23ʹ aus Fig. 2 an ihrem Umfang jeweils mit einer Ringnut 29 versehen, welche im Profil so geformt ist, daß sie eine der Randrippen 19 bzw. 20 der beiden Spannbacken 4 oder 5 formschlüssig, jedoch mit einem gewissen radialen Spiel, das eine exakte Zentrierung am Lagerring 2 ermöglicht, aufnehmen kann.
Während die beiden Spannschalen 21 und 22 auf ihrer Innensei­te jeweils mit einer im Profil halbkreisförmigen, nach innen vorspringenden Ringrippe 30 versehen ist, weisen die Spannscha­le 23 und 23ʹ an ihren Unterkanten eine nach innen vorspringende Greifernase 31 auf, welche in entsprechenden Ausnehmungen 32 (Fig. 2) einer Radflanschnabe 3 den abzuziehenden Lagerring 2 stirnseitig hintergreifen können, wie es in Fig. 2 dargestellt ist. Für Lagerringe 2, die an ihrem Umfang eine Kugel-Laufrille 2ʹ aufweisen, werden Spannschalen 21 und 22 in der Spann­vorrichtung 1 fest eingespannt, welche auf ihren Innenseiten entsprechend profilierte Ringrippen 30 aufweisen, wie das in Fig. 3 dargestellt ist. Zum Herausdrücken der Radflanschnabe aus dem nach Fig. 2 oder 3 in die Spannvorrichtung 1 ein­gespannten Laggerring 2 kann entweder, wie in Fig. 2 dargestellt ist, eine Abziehglocke 33 verwendet werden, die einen Spannflansch 34 mit Durchstecköffnungen 36 bzw. 37 aufweist und mittels Schrauben 38, die in Gewindebohrungen 39 der beiden Spannbacken 4 und 5 oder Gewindebohrungen 40 der beiden Längsschenkel 6 und 7 einschraubbar sind, auf der Oberseite der Spannvorrichtung 1 befestigt werden kann. Mittels einer Druckspindel 41, die mit Hilfe eines Knebels 42 drehbar in einer zentralen Gewindeboh­rung 43 des Halses der Abziehglocke sitzt, kann mittels eines auf die Stirnseite der Hohlnabe 44 aufgesetzten Druckstückes 45 die Radflanschnabe 3 aus dem Lagerring 2 herausgedrückt werden. Dabei ist es zweckmäßig, die Spannvorrichtung 1 bei­spielsweise in einen Schraubstock einzuspannen, um an der Gewindespindel 41 das nötige Drehmoment leichter aufbringen zu können.As can also be seen from Fig. 1, the two formed as a semicircular body clamping shells 21 and 22 and also the clamping shells 23 and 23ʹ of Fig. 2 are provided on their circumference with an annular groove 29 which is shaped in profile so that it one of the edge ribs 19 or 20 of the two clamping jaws 4 or 5 can be positively but with a certain radial play, which enables exact centering on the bearing ring 2.
While the two clamping shells 21 and 22 are each provided on their inside with a semicircular profile, inwardly projecting ring rib 30, the clamping shells 23 and 23ʹ have an inwardly projecting gripper nose 31 on their lower edges, which in corresponding recesses 32 (Fig. 2) a wheel flange hub 3 can engage behind the front of the bearing ring 2 to be removed, as shown in FIG. 2. For bearing rings 2, which have a ball groove 2ʹ on their circumference, clamping shells 21 and 22 are firmly clamped in the clamping device 1, which have correspondingly profiled ring ribs 30 on their inner sides, as shown in FIG. 3. To push the wheel flange hub out of the Laggerring 2 clamped in the tensioning device 1 according to FIG. 2 or 3, either a pull-off bell 33 can be used, as shown in FIG. 2, which has a clamping flange 34 with push-through openings 36 and 37 and can be fastened by means of screws 38, which can be screwed into threaded holes 39 of the two clamping jaws 4 and 5 or threaded holes 40 of the two longitudinal legs 6 and 7, on the upper side of the clamping device 1. The wheel flange hub 3 can be pressed out of the bearing ring 2 by means of a pressure spindle 41, which is rotatably seated in a central threaded bore 43 of the neck of the pull-off bell by means of a toggle 42, by means of a pressure piece 45 placed on the end face of the hollow hub 44. It is expedient to clamp the clamping device 1, for example in a vice, in order to be able to apply the necessary torque more easily to the threaded spindle 41.

Es ist aus Fig. 1 erkennbar, daß zum Durchstecken der Schrau­ben 38 der Ringflansch 34 mit Langlöchern 36 bzw. 37 versehen ist, damit eine Zentrierung der Abziehglocke 33 zu der eingespann­ten Radflanschnabe 2 möglich ist.It can be seen from FIG. 1 that the annular flange 34 is provided with elongated holes 36 and 37 for pushing through the screws 38 so that centering of the pull-off bell 33 to the clamped-in wheel flange hub 2 is possible.

Wenn eine Abziehglocke oder ähnliche Abziehvorrichtung, bei spielsweise eine Abziehbrücke, nicht zu Verfügung steht oder die zum Herauspressen der Hohlnabe 44 aus dem eingespannten Lagerring 2 erforderlichen Druckkräfte mit der Druckspindel 41 nicht aufgebracht werden können, besteht auch die Möglich­keit nach Fig. 3, die Spannvorrichtung 1 mit Hilfe zweier Distanz­klötze 50 und 51 auf den Preßtisch 52 einer weiter nicht dar­ gestellten Presse beliebiger Bauart und Funktionsweise zu setzen und das Herausdrücken der Hohlnabe 44 aus dem Lagerring 2 mit dem Preßstempel 53 unter Benutzung eines passenden Druck­stückes 54 zu bewerkstelligen. Es versteht sich, daß man mit einer beispielsweise hydraulisch oder pneumatisch betätigten oder aber mit einer Exzenterpresse, die mehrere Tonnen Preß­druck aufzubringen in der Lage ist, den Abziehvorgang leichter durchführen kann, als mit einer Abziehglocke 33 oder einem ähnlichen Abziehgerät.
Damit die beiden Distanzklötze 50 und 51, durch welche die erforderliche Hubfreiheit zwischen der unteren Stirnseite der Radflanschnabe 3 und dem Preßtisch 52 hergestellt werden soll, an der Unterseite der Spannvorrichtung 1 gut anliegen, ist die Spannvorrichtung 1 so gestaltet, daß die Oberflächen sowohl der Spannbacken 4 und 5 als auch der einen Spannrahmen bildenden Längsschenkel 6 und 7 jeweils glatte Ebenen bilden. Außerdem ist zumindest die Länge oder die Breite der Spannvorrichtung 1 so groß gewählt, daß sie den größtmöglichen Durchmesser einer Radflanschnabe 3 um wenigstens 4 cm überragt, damit die beiden erforderlichen Distanzklötze 50 und 51 außerhalb der Radflanschnabe untergesetzt werden können.If a pull-off bell or similar pull-off device, for example a pull-off bridge, is not available or the pressure forces required to press the hollow hub 44 out of the clamped bearing ring 2 cannot be applied with the pressure spindle 41, there is also the possibility according to FIG. 3, the clamping device 1 with the help of two spacer blocks 50 and 51 on the press table 52 one not further to set the press of any design and function and to push the hollow hub 44 out of the bearing ring 2 with the press ram 53 using a suitable pressure piece 54. It is understood that one can perform the pull-off process more easily with a hydraulically or pneumatically operated or with an eccentric press, which is able to apply several tons of pressure, than with a pull-off bell 33 or a similar pull-off device.
So that the two spacer blocks 50 and 51, by means of which the required freedom of stroke is to be produced between the lower end face of the wheel flange hub 3 and the press table 52, lie well against the underside of the clamping device 1, the clamping device 1 is designed such that the surfaces of both the clamping jaws 4 and 5 as well as the longitudinal legs 6 and 7 forming a clamping frame each form smooth planes. In addition, at least the length or the width of the tensioning device 1 is chosen so large that it projects beyond the largest possible diameter of a wheel flange hub 3 by at least 4 cm, so that the two required spacer blocks 50 and 51 can be placed outside the wheel flange hub.

Es ist aus den Fig. 2 und 3 erkennbar, daß der Abziehvorgang im einen wie im anderen Fall von oben gut zu beobachten ist. Für unterschiedliche Lagerringe 2 stehen, wie bereits erwähnt, unterschiedliche angepaßte Spannschalen 21, 22 und 23, 23ʹ zur Verfügung, so daß die Spannvorrichtung 1 universell ein­setzbar ist. Durch die massive und flache Bauweise hat die rahmenartige Konstruktion eine sehr hohe Festigkeit, so daß hohe Druckkräfte sowohl in Spannrichtung als auch in Abzieh­richtung aufgenommen bzw. aufgebracht werden können, wobei jederzeit die Möglichkeit besteht, durch entsprechende Drehung der Gewindespindel 24 die Druckspannung, mit welcher die abzu­ziehenden Lagerringe in die Vorrichtung eingespannt werden, zu erhöhen.It can be seen from FIGS. 2 and 3 that the pulling-off process can be easily observed from above in one case as in the other. For different bearing rings 2, as already mentioned, there are different adapted clamping shells 21, 22 and 23, 23ʹ are available so that the clamping device 1 can be used universally. Due to the solid and flat design, the frame-like construction has a very high strength, so that high compressive forces can be absorbed or applied both in the clamping direction and in the pulling direction, with the possibility at any time, by appropriate rotation of the threaded spindle 24, the compressive stress with which the bearing rings to be removed are clamped in the device to increase.

Claims (9)

1. Spannvorrichtung zum Abziehen von Lagerringen von Rad­flanschnaben mit zwei durch Gewindeingriff relativ zueinander beweglichen Spannbacken, die jeweils mit sich in einer gemeinsamen Ebene gegenüberliegenden Ausnehmungen ver­sehen sind,
dadurch gekennzeichnet,
daß die beiden Spannbacken (4, 5) jeweils auch gleich dicken flachen, plattenartigen Körpern bestehen und formschlüssig in einem aus zwei parallelen Längsschenkeln (6, 7) und wenigstens einem diese verbindenden Querschenkel (8) be­stehenden, flachen, ebenen Spannrahmen derart angeordnet sind, daß wenigstens eine Spannbacke (5) entlang der Längsschenkel (6, 7) beweglich und mittels einer in einer Gewindebohrung (25) des Querschenkels (8) sitzenden Ge­windespindel (24) gegen die andere durch einen Anschlag oder durch Verschraubung (16) mit den Längsschenkeln (6, 7) unbewegliche Spannbacke (4) preßbar ist.1. Clamping device for removing bearing rings from wheel flange hubs with two clamping jaws which can be moved relative to one another by threaded engagement and which are each provided with recesses lying opposite one another in a common plane,
characterized by
that the two clamping jaws (4, 5) each consist of flat plate-like bodies of the same thickness and are arranged in a form-fitting manner in a flat, flat clamping frame consisting of two parallel longitudinal legs (6, 7) and at least one cross leg (8) connecting them, that at least one clamping jaw (5) is movable along the longitudinal limbs (6, 7) and by means of a threaded spindle (24) seated in a threaded bore (25) of the transverse limb (8) against the other by a stop or by screwing (16) to the longitudinal limbs (6, 7) immovable clamping jaw (4) can be pressed. 2. Spannvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Längs- und Querschenkel (6, 7, 8) des Spannrahmens gleich dick sind wie die Spannbacken (4, 5) und ihre flach­seitigen Oberflächen mit denen der Spannbacken jeweils in einer gemeinsamen Eben liegen.2. Clamping device according to claim 1, characterized in that the longitudinal and transverse legs (6, 7, 8) of the clamping frame are of the same thickness as the clamping jaws (4, 5) and their flat surfaces with those of the clamping jaws each lie in a common plane . 3. Spannvorrichtung nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß der Spannrahmen wenigstens in seiner Länge oder Breite das Maß von 12 cm übersteigt.3. Clamping device according to claim 1 or 2, characterized in that the clamping frame exceeds the dimension of at least 12 cm in length or width. 4. Spannvorrichtung nach Anspruch 1, 2 oder 3, dadurch ge­kennzeichnet, daß zum formschlüssigen, auswechselbaren Einsetzen in die Ausschnitte (17, 18) der Spannbacken (4, 5) jeweils paarweise gleich ausgebildete, im wesentlichen halbkreisförmige Spannschalen (21, 22, 23, 23ʹ) mit radial nach innen vorspringenden Profilrippen (30) und/oder mit Greifnasen vorgesehen sind.4. Clamping device according to claim 1, 2 or 3, characterized in that for form-fitting, interchangeable insertion into the cutouts (17, 18) of the clamping jaws (4, 5) each pair of identical, substantially semicircular clamping shells (21, 22, 23rd , 23ʹ) with radially inwardly projecting profile ribs (30) and / or with gripping lugs. 5. Spannvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die auswechselbaren Spannschalen (21, 22, 23, 23ʹ) durch Nut-Feder-Eingriffe (19, 20, 29) mit den Spannbacken (4, 5) verbindbar sind.5. Clamping device according to claim 4, characterized in that the interchangeable clamping shells (21, 22, 23, 23ʹ) by tongue and groove interventions (19, 20, 29) with the clamping jaws (4, 5) can be connected. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die auswechselbaren Spannschalen (21, 22, 23, 23ʹ) mit radialem Spiel formschlüssig in den Ausschnitten (17, 18) der Spannbacken (4, 5) befestigbar sind.6. The device according to claim 5, characterized in that the interchangeable clamping shells (21, 22, 23, 23ʹ) with radial play in the cutouts (17, 18) of the clamping jaws (4, 5) can be fastened. 7. Spannvorrichtung nach Anspruch 1, dadurch gekennzeich­net, daß die Längsschenkel (6, 7) des Spannrahmens und wenigstens die beweglich zwischen diesen angeordnete Spann­ backe (5) formschlüssig nach Art einer Nut-Feder-Verbindung (9, 10, 13, 14) ineinander greifen.7. Clamping device according to claim 1, characterized in that the longitudinal legs (6, 7) of the clamping frame and at least the clamping arranged movably between them The jaws (5) interlock positively in the manner of a tongue and groove connection (9, 10, 13, 14). 8. Spannvorrichtung nach Anspruch 1 oder einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß die Spannbacken (4, 5) und/oder die Längsschenkel (6, 7) mit Gewindeboh­rungen (39, 40) versehen sind, deren Achsen senkrecht zu den Flachseiten des Spannrahmens bzw. der Spannbacken (4, 5) verlaufen.8. Clamping device according to claim 1 or one of claims 2 to 7, characterized in that the clamping jaws (4, 5) and / or the longitudinal legs (6, 7) are provided with threaded bores (39, 40), the axes of which are perpendicular to the Flat sides of the clamping frame or the clamping jaws (4, 5) run. 9. Spannvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß zum wahlweisen Aufsetzen auf die Spannbacken (4, 5) oder auf den Spannrahmen eine mit einer Druckspindel (41) versehene Ziehglocke (33) oder Ziehbrücke vorgesehen ist, welche mittels in die Gewindebohrungen (39, 40) einsetz­baren Schrauben (38) an den Spannbacken (4, 5) oder Längsschenkeln (6, 7) befestigbar ist.9. Clamping device according to claim 8, characterized in that for optionally placing on the clamping jaws (4, 5) or on the clamping frame, a pull bell (33) provided with a pull bell (33) or pull bridge is provided, which means by means of the threaded holes (39 , 40) insertable screws (38) on the jaws (4, 5) or longitudinal legs (6, 7) can be fastened.
EP87110334A 1986-09-01 1987-07-17 Clamping device for the bearing rings of wheel flange hubs Expired - Lifetime EP0258594B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8623406U 1986-09-01
DE8623406U DE8623406U1 (en) 1986-09-01 1986-09-01 Clamping device for bearing rings of wheel flange hubs

Publications (2)

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EP0258594A1 true EP0258594A1 (en) 1988-03-09
EP0258594B1 EP0258594B1 (en) 1990-01-03

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EP87110334A Expired - Lifetime EP0258594B1 (en) 1986-09-01 1987-07-17 Clamping device for the bearing rings of wheel flange hubs

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EP (1) EP0258594B1 (en)
DE (1) DE8623406U1 (en)
ES (1) ES2012376B3 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370179A2 (en) * 1988-08-29 1990-05-30 Pierino Zecchin Universal stripper for the inner ring of cylindrical ball bearings
EP0803332A1 (en) * 1996-04-24 1997-10-29 Klann Tools Ltd. Device for the pressing out of the pivot pin of a suspension joint and/or of a track rod
CN102528734A (en) * 2012-01-05 2012-07-04 山东华力电机集团股份有限公司 Separable bearing manual press mounting tool
US20150083981A1 (en) * 2013-09-25 2015-03-26 Ronald D. Kruger Concentric slave cylinder removal tool
CN106272241A (en) * 2015-05-29 2017-01-04 Skf公司 Bearing puller

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* Cited by examiner, † Cited by third party
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DE10018799A1 (en) * 2000-04-15 2001-10-25 Volkswagen Ag Assembly unit for mounting wheel bearing hub unit incorporates threaded spindle, support pipe, pressure plate, outer ring, and centering piece
CN102729206A (en) * 2012-07-10 2012-10-17 河南中烟工业有限责任公司 Tobacco suction band wheel bearing dismounting tool of rolling and connecting machine set
CN103639977A (en) * 2013-11-19 2014-03-19 苏州蓝王机床工具科技有限公司 Gear or bearing detaching tool
US20170356338A1 (en) * 2016-06-08 2017-12-14 General Electric Company Installation tool and system for assembling a gas turbine combustor
CN106312857A (en) * 2016-10-18 2017-01-11 安徽省六安市朝晖机械制造有限公司 Bearing clamping device
CN107351012B (en) * 2017-07-04 2020-04-24 京东方科技集团股份有限公司 Positioning device and positioning method using same
CN113843604B (en) * 2021-10-21 2022-09-16 滁州市康达叉车零部件制造有限公司 Press mounting device and method for forklift steering axle hub bearing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE829129C (en) * 1949-12-13 1952-01-24 Kleinbongartz & Kaiser Separating device for loosening ball bearings, fastening rings, toothed wheels or the like from their seat
DE2600280A1 (en) * 1976-01-07 1977-07-14 Heinz Hacks Ball bearing casing removal unit - has twin steel jaws which fit around casing and engage with semicircular cut outs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE829129C (en) * 1949-12-13 1952-01-24 Kleinbongartz & Kaiser Separating device for loosening ball bearings, fastening rings, toothed wheels or the like from their seat
DE2600280A1 (en) * 1976-01-07 1977-07-14 Heinz Hacks Ball bearing casing removal unit - has twin steel jaws which fit around casing and engage with semicircular cut outs

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0370179A2 (en) * 1988-08-29 1990-05-30 Pierino Zecchin Universal stripper for the inner ring of cylindrical ball bearings
EP0370179A3 (en) * 1988-08-29 1991-03-20 Pierino Zecchin Universal stripper for the inner ring of cylindrical ball bearings
EP0803332A1 (en) * 1996-04-24 1997-10-29 Klann Tools Ltd. Device for the pressing out of the pivot pin of a suspension joint and/or of a track rod
US5906034A (en) * 1996-04-24 1999-05-25 Klann Tools Ltd. Pressing-out device for an axle support joint and/or a tie rod end
CN102528734A (en) * 2012-01-05 2012-07-04 山东华力电机集团股份有限公司 Separable bearing manual press mounting tool
US20150083981A1 (en) * 2013-09-25 2015-03-26 Ronald D. Kruger Concentric slave cylinder removal tool
CN106272241A (en) * 2015-05-29 2017-01-04 Skf公司 Bearing puller

Also Published As

Publication number Publication date
EP0258594B1 (en) 1990-01-03
DE8623406U1 (en) 1986-10-23
ES2012376B3 (en) 1990-03-16

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