EP0215207B1 - Device for pushing out the hub of a wheel flange or a splined flange hub of a motor car or the like from a shaft bearing - Google Patents

Device for pushing out the hub of a wheel flange or a splined flange hub of a motor car or the like from a shaft bearing Download PDF

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Publication number
EP0215207B1
EP0215207B1 EP86108835A EP86108835A EP0215207B1 EP 0215207 B1 EP0215207 B1 EP 0215207B1 EP 86108835 A EP86108835 A EP 86108835A EP 86108835 A EP86108835 A EP 86108835A EP 0215207 B1 EP0215207 B1 EP 0215207B1
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EP
European Patent Office
Prior art keywords
supporting member
sectors
bearing
axial
threaded
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
Application number
EP86108835A
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German (de)
French (fr)
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EP0215207A1 (en
Inventor
Horst Klann
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Individual
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Individual
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Priority to AT86108835T priority Critical patent/ATE48390T1/en
Publication of EP0215207A1 publication Critical patent/EP0215207A1/en
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Publication of EP0215207B1 publication Critical patent/EP0215207B1/en
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49822—Disassembling by applying force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53861—Work-engager arms along or parallel to screw
    • Y10T29/5387—Pivotal arms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53878—Tubular or tube segment forms work-engager

Definitions

  • the invention relates to a device for pressing out wheel flange hubs or flange spline hubs of motor vehicles or the like. From a shaft bearing which is fixedly arranged in a bearing receptacle which is provided with an annular groove-like recess at least on one side of the bearing face, consisting of spreading sectors, each of which adjoins One end is supported on a support member having a central threaded bore and each is provided at its ends of its outer lateral surfaces opposite the support member with radial anchoring projections which can be positively inserted into the recess in the bearing receptacle, the spreading sectors being screwed into the threaded bore of the support member by means of an intermediate cone and with Threaded spindle surfaces provided are expandable and in a central, continuous, at least partially provided with a nut thread axial bore of the expansion cone or the threaded spindle a pressure spindle is screwed in with a pressure piece, which has a key head at one end.
  • a trigger device for the drive pinion of electric motors which corresponds to the generic device.
  • the spreading sectors are formed by axial slots and are an integral part of an annular body which is centered on a flange ring.
  • This flange ring is adjustably screwed onto the external thread of a sleeve body provided with an expansion cone and with an internal thread and with a pressure spindle and serves as a support member for the expansion sectors.
  • This trigger device is only suitable for removing drive pinions with a very specific inner diameter. No other use is possible.
  • the pressure medium used to pull off the wheel flange hub from a double-row ball bearing of the bearing cylinder consists of a plurality of bolts which are screwed into axial threaded holes in the flange of the edge flange hub and face each other support a radial surface of the bearing cylinder. Since it is not possible to turn all the bolts evenly at the same time, it is also not possible to prevent the wheel flange hub from tilting with these means. These means are therefore extremely inadequate for the professional removal of the wheel flange hub from its ball bearings.
  • FR-PS 959 338 Devices for pressing out shaft ends from pressed-on bearing rings or the like are also already known (FR-PS 959 338), in which a plurality of clamping sectors are guided in an axially movable manner in a cylindrical sleeve concentrically to the sleeve axis, which are moved axially by means of an expansion cone which is inserted in a Internal thread of the outer sleeve is screwed in, can be clamped such that its ends opposite the expanding cone engage behind the ring to be removed in a hook-like manner or that inner annular beads of the clamping sectors engage in an annular groove of a bearing ring.
  • the end of the sleeve opposite the internal thread is provided with an inner cone on which the clamping sectors are supported in order to be moved radially inward when axially displaced.
  • the expansion cone itself is also provided with a coaxial threaded hole into which a pressure spindle is screwed, with which the axial pressure required for pressing out can be exerted on the end face of the shaft end.
  • diametrically opposed, radially adjustable support feet are arranged on a cross member with respect to a threaded spindle, which on the edge of a component on the For example, a ball bearing should be pulled out, can be placed (DE-PS 857 329).
  • the threaded spindle is provided at its lower end with a collet, the neck of which engages with the thread of the threaded spindle by means of an internal thread and the expansion limbs of which can be expanded by means of an expansion cone.
  • the expansion cone has a long shaft which projects through the hollow body and which is provided at its upper end with a thread protruding from the upper end of the threaded spindle and clamped in the axial direction by means of a nut which is seated on the upper end face of the hollow threaded spindle can be.
  • the threaded spindle itself is also provided with a clamping nut, which is supported on a ring bearing of the cross member.
  • devices of this type are not suitable for pressing out wheel flange hubs or spline hubs from the shaft bearings of a bearing cylinder of motor vehicles.
  • the expansion sleeve can be moved axially relative to the drawing tube, so that the expansion fingers can be expanded.
  • a threaded pressure spindle which is provided with a key head at its end protruding from the threaded bolt and with a pressure piece at the opposite end, which can be placed on the end face of a shaft enclosed by the ring seal .
  • This device is also not suitable for the purpose according to the invention.
  • This device has a support bell, which can be placed on the end face of the tube from which the ring or the ball bearing is to be pulled out.
  • This support bell is a freely rotatable threaded spindle, the lower end of which is provided with an expansion cone and the upper end, which protrudes from the support bell, is provided with a toggle nut which is seated on a counterpressure surface of the support bell.
  • On the expanding cone are two diametrically opposed spreading fingers, which are provided with radially outwardly projecting hook-like gripping elements which can reach behind the ring to be pulled out.
  • These spreading fingers are provided with radial angle pieces which have bores through which the threaded spindle protrudes. Threaded nuts are arranged above and below these two angle pieces, with the help of which the axial position of these spreading fingers can be fixed on the threaded spindle.
  • the invention has for its object to provide a simple, space-saving and adjustable to different diameters of bearing cylinders device of the type mentioned, with which it is possible in a simple manner and with the necessary operational reliability, wheel flange hubs or flange splines of motor vehicles from their Push out shaft bearings in which they are stuck, thereby ensuring that the compressive forces required for pressing out act in exactly the coaxial direction and that damage to the hub is avoided with certainty.
  • the two spreading sectors consist of separate, shell-like, semi-cylindrical bodies, each of which has axially arranged axial pins on their end faces facing an annular disk-like support member, in that the support member has a plurality of axial bores each lying in pairs on the same radius with different distances from the central axis of the threaded bore is provided, in which the axial pins can be inserted pivotably, and that the pressure piece is plate-like.
  • the design according to the invention ensures the advantageous possibility that the device can be easily dismantled and assembled, and that the spreading sectors can be set in a very simple manner to different inside diameters of different bearing cylinders.
  • the particular advantage is that the device is simple in construction and, above all, easy to handle.
  • claims 2 and 3 ensures that the pressure piece automatically centers itself in the bore of the wheel flange hub or flange spline hub when the pressure forces become effective.
  • the expansion cone is still in the axial direction within the two expansion sectors and is not a hindrance when the expansion sectors are set in an annular groove if these are set to the smallest possible expansion diameter. This extends the use of the same device in that it can be easily adjusted to different inside diameters of bearing cylinders.
  • the bearing cylinder 1 of a motor vehicle steering knuckle 2 with a wheel flange hub 3 is also shown.
  • the wheel flange hub 3 has a cylindrical, hollow spline hub 4, which is pressed into a roller bearing 5 serving as a wheel bearing and is to be pressed out with the aid of the device according to the invention in the direction of arrow 6 from this roller bearing 5, which at least initially remains in the bearing cylinder 1.
  • the roller bearing 5 is pressed into the cylindrical bore 7 of the bearing cylinder 1 and gesi against axial displacement by two locking rings 10 seated in ring grooves 8 and 9 chert.
  • the pressure tool 11 which serves to press the wheel flange hub out of the roller bearing 5
  • the securing ring 10 has already been removed from the annular groove 8 and is therefore not visible in FIGS. 1 and 2.
  • the pressure tool 11 consists of two spreading sectors 13 and 14, which are diametrically or mirror-image opposite one another with respect to a common axis 12, a support member 15, a spreading cone 16 with a hollow threaded spindle 17, which is provided with a nut thread 18, and a pressure spindle 19 and a pressure piece 20, which is arranged elastically on a cylindrical end projection 21 of the pressure spindle 19.
  • the nut thread does not have to extend over the entire length of the threaded spindle 17.
  • the two spreading sectors 13 and 14, which are of identical design, are each provided on their end faces facing the support member 15 with axial pins 22 and 23 arranged on the side, which can be inserted in axial bores 24 and 25, respectively, of the same pressure, which are arranged in pairs on the same radius are.
  • the diameter of the axial bores 24 and 25 are larger than the diameter of the axial pins 22 and 23, so that the expansion sectors 13 and 14, when the axial pins 22 and 23 are inserted in the axial bores 24 and 25, can also be pivoted in the radial direction. As can be seen from FIGS.
  • the pressure piece has a total of three pairs of such axial bores, namely still the additional pairs of axial bores 26 and 27 or 28 and 29, which are each arranged symmetrically to the central axis or to the center of the disk-shaped support member 15 and whose distances R1 or R2 and R3 are of different sizes or are arranged in pairs on differently sized radii R1 / 2, R2 / 2 or R3 / 2.
  • R1 or R2 and R3 are of different sizes or are arranged in pairs on differently sized radii R1 / 2, R2 / 2 or R3 / 2.
  • the two expansion sectors 13, 14 have, on the end sections facing away from the support member 15, enlarged inner recesses 33 into which the expansion cone 16 can be freely inserted, while the remaining sections of the two Spreading sectors each have semicircular recesses 34 of smaller diameter, which each form spreading edges 35 at the transition to the larger recesses 33, which can be conical or rounded and against which the spreading cone 16 lies with its conical outer surface. It can be seen from FIG. 2 that the spreading edges 35 are at a certain axial distance from the end edges 13 'and 14' of the spreading sectors 13 and 14, respectively.
  • This distance is chosen so that when the two expansion sectors 13 and 14 are set to the smallest possible diameter of a bearing bore 7 or an annular groove 8, the expansion cone 16 does not axially out of the expansion sectors when the expansion sectors 13, 14 are inserted into the annular groove 8 13, 14 protrudes.
  • the minimum distance must at least correspond to the expansion stroke of the expansion cone 16.
  • the two expansion sectors 13 and 14 have radially outwardly projecting, rib-like anchoring projections 36 and 37 which, as can be seen from FIG. 2, can be inserted in a form-fitting manner in the annular groove 8 of the bearing cylinder 1.
  • the expansion cone 16 is moved with the aid of the threaded spindle 17 relative to the two expansion sectors 13 and 14 in the direction of the arrow 38, so that the two expansion sectors 13 and 14 are axially anchored in the annular groove 8 results. Thereafter, it is only necessary to turn the pressure spindle 19 by attaching a rotary key to the hexagon key head 32 so that an axial movement occurs in the direction of arrow 6, through which the pressure piece 20, which is located on the bore of the spline hub 4 provided with splines 4 ′ can center itself, pushes the wheel flange hub 3 out of the roller bearing 5, which is still secured against axial displacement by the locking ring 10.
  • a helical spring 39 is provided which is joined to form a ring and is guided in outer annular grooves 40 of the two expansion sectors 13 and 14.
  • the annular groove 8 of the bearing cylinder 1, into which the rib-like anchoring projections 36 and 37 of the two expansion sectors 13 and 14 are anchored, is in the immediate vicinity of the end face of the rolling bearing 5 or the spline hub 4, it is necessary for the pressure piece 20 within the axial length of the two expansion sectors 13 and 14 to provide a space in which the pressure piece 20 can be sunk in the axial direction when the two expansion sectors 13 and 14 are fastened in the annular groove 8.
  • the two Recesses 33 are sufficient to be able to insert the pressure piece 20 axially deep enough into the two ring sectors 13 and 14.

Abstract

A device to push a wheel flange hub or splined hub of motor vehicles out of a shaft bearing press-fitted in a bearing cylinder is of simple design and easy to handle and, in addition, adjustable to different diameters of various bearing cylinders. The device includes two each semi-cylindrical spreader sectors supported on the one hand by axial pins in eccentric axial holes in a supporting member resembling an internally threaded ring so they can swivel while having at their opposite ends projections which project radially outward and can be inserted in form closing fashion into an annular groove of the bearing cylinder. A threaded spindle equipped with a wrench engagement head and a spreading cone is adjustably screwed into a central, tapped hole of the supporting member by means of which threaded spindle the spreader sectors can be spread apart. Seated in a central, tapped hole of the threaded spindle is a pressure screw with a pressure transmitting part and a wrench head. The supporting member is provided with several pairs of holes, each pair located on the same radii of different size, to accommodate the pins of the spreader sectors.

Description

Die Erfindung betrifft eine Vorrichtung zum Herausdrücken von Radflanschnaben oder Flanschkeilnaben von Kraftfahrzeugen od. dgl. aus einem Wellenlager, welches festsitzend in einer Lageraufnahme angeordnet ist, die wenigstens auf der einen Lagerstimseite mit einer ringnutartigen Ausnehmung versehen ist, bestehend aus Spreizsektoren, die sich jeweils an einem Ende an einem eine zentrale Gewindebohrung aufweisenden Stützglied abstützen und jeweils an ihren dem Stützglied gegenüberliegenden Enden ihrer äußeren Mantelflächen mit formschlüssig in die Ausnehmung der Lageraufnahme einsetzbaren radialen Verankerungsvorsprüngen versehen sind, wobei die Spreizsektoren mittels eines dazwischenliegenden Spreizkegels einer in die Gewindebohrung des Stützgliedes eingeschraubten und mit Drehschlüsselflächen versehenen Gewindespindel spreizbar sind und wobei in einer zentralen, durchgehenden, wenigstens teilweise mit einem Muttergewinde versehenen Axialbohrung des Spreizkegels bzw. der Gewindespindel eine Druckspindel mit einem Druckstück eingeschraubt ist, welche an einem Ende einen Schlüsselkopf aufweist.The invention relates to a device for pressing out wheel flange hubs or flange spline hubs of motor vehicles or the like. From a shaft bearing which is fixedly arranged in a bearing receptacle which is provided with an annular groove-like recess at least on one side of the bearing face, consisting of spreading sectors, each of which adjoins One end is supported on a support member having a central threaded bore and each is provided at its ends of its outer lateral surfaces opposite the support member with radial anchoring projections which can be positively inserted into the recess in the bearing receptacle, the spreading sectors being screwed into the threaded bore of the support member by means of an intermediate cone and with Threaded spindle surfaces provided are expandable and in a central, continuous, at least partially provided with a nut thread axial bore of the expansion cone or the threaded spindle a pressure spindle is screwed in with a pressure piece, which has a key head at one end.

Aus DE-C 427 850 ist bereits eine Abzugvorrichtung für die Antriebssritzel von Elektromotoren bekannt, welche der gattungsgemäßen Vorrichtung entspricht. Bei dieser bekannten Abzugsvorrichtung sind die Spreizsektoren durch Axialschlitze gebildet einstückiger Bestandteil eines Ringkörpers, der sich zentriert auf einem Flanschring abstützt. Dieser Flanschring ist auf das Außengewinde eines mit einem Spreizkonus und mit einem Innengewinde sowie mit einer Druckspindel versehenen Hülsenkörpers verstellbar aufgeschraubt und dient als Stützglied für die Spreizsektoren. Diese Abzugsvorrichtung ist nur zum Abziehen von Antriebsritzeln mit einem ganz bestimmten Innendurchmesser geeignet. Eine andere Verwendung ist nicht möglich. Bei einer bekannten Vorrichtung dieser Art (D-GM 8 434 762) bestehen die Druckmittel, die zum Abziehen der Radflanschnabe aus einem zweireihigen Kugellager des Lagerzylinders verwendet werden, aus mehreren Schraubenbolzen, die in axiale Gewindebohrungen des Flansches der Randflanschnabe eingeschraubt werden und sich stirnseitig an einer Radialfläche des Lagerzylinders abstützen. Da es nicht möglich ist, gleichzeitig alle Schraubenbolzen gleichmäßig zu drehen, ist es auch nicht möglich, mit diesen Mitteln ein Verkanten der Radflanschnabe zu vermeiden. Für eine fachgerechte Entfernung der Radflanschnabe aus ihren Kugellagern sind diese Mittel somit höchst unzulänglich.From DE-C 427 850 a trigger device for the drive pinion of electric motors is already known, which corresponds to the generic device. In this known trigger device, the spreading sectors are formed by axial slots and are an integral part of an annular body which is centered on a flange ring. This flange ring is adjustably screwed onto the external thread of a sleeve body provided with an expansion cone and with an internal thread and with a pressure spindle and serves as a support member for the expansion sectors. This trigger device is only suitable for removing drive pinions with a very specific inner diameter. No other use is possible. In a known device of this type (D-GM 8 434 762), the pressure medium used to pull off the wheel flange hub from a double-row ball bearing of the bearing cylinder consists of a plurality of bolts which are screwed into axial threaded holes in the flange of the edge flange hub and face each other support a radial surface of the bearing cylinder. Since it is not possible to turn all the bolts evenly at the same time, it is also not possible to prevent the wheel flange hub from tilting with these means. These means are therefore extremely inadequate for the professional removal of the wheel flange hub from its ball bearings.

Es sind auch bereits Vorrichtungen zum Herausdrücken von Wellenenden aus aufgepreßten Lagerringen od. dgl. bekannt (FR-PS 959 338), bei denen in einer zylindrischen Hülse konzentrisch zur Hülsenachse mehrere Klemmsektoren axial radial beweglich geführt sind, die mittels eines Spreizkegels, der in ein Innengewinde der äußeren Hülse eingeschraubt ist, derart verspannt werden können, daß ihre dem Spreizkegel gegenüberliegenden Enden den abzuziehenden Ring hakenartig hintergreifen bzw. daß innere Ringwülste der Klemmsektoren in eine Ringnut eines Lagerringes eingreifen. Dabei ist das dem Innengewinde gegenüberliegende Ende der Hülse mit einem Innenkonus versehen, auf dem sich die Klemmsektoren abstützen um bei axialer Verschiebung zugleich radial nach innen bewegt zu werden. Der Spreizkegel selbst ist ebenfalls mit einer koaxialen Gewindebohrung versehen, in welche eine Druckspindel eingeschraubt ist mit welcher der zum Herausdrücken erforderliche Axialdruck auf die Stirnseite des Wellenendes ausgeübt werden kann.Devices for pressing out shaft ends from pressed-on bearing rings or the like are also already known (FR-PS 959 338), in which a plurality of clamping sectors are guided in an axially movable manner in a cylindrical sleeve concentrically to the sleeve axis, which are moved axially by means of an expansion cone which is inserted in a Internal thread of the outer sleeve is screwed in, can be clamped such that its ends opposite the expanding cone engage behind the ring to be removed in a hook-like manner or that inner annular beads of the clamping sectors engage in an annular groove of a bearing ring. The end of the sleeve opposite the internal thread is provided with an inner cone on which the clamping sectors are supported in order to be moved radially inward when axially displaced. The expansion cone itself is also provided with a coaxial threaded hole into which a pressure spindle is screwed, with which the axial pressure required for pressing out can be exerted on the end face of the shaft end.

Weil bei diesen Vorrichtungen keine Möglichkeit vorhanden ist, irgendwelche Stützelemente mit dem Lagerzylinder in formschlüssigen Eingriff zu bringen, sind diese Vorrichtungen für den erfindungsgemäßen Zweck nicht verwendbar.Because there is no possibility in these devices to bring any support elements into positive engagement with the bearing cylinder, these devices cannot be used for the purpose according to the invention.

Bei einer anderen bekannten Vorrichtung zum Herausziehen von Kugellagern, Lagerbüchsen und Lagerringen od. dgl. aus ihren Fassungen und Gehäusen, sind an einem Querträger sich in bezug auf eine Gewindespindel diametral gegenüberliegende, radial verstellbare Stützfüße angeordnet, die auf dem Rand eines Bauteiles, auf dem beispielsweise ein Kugellager herausgezogen werden soll, aufgesetzt werden können (DE-PS 857 329). Die Gewindespindel ist an ihrem unteren Ende mit einer Spannzange versehen, deren Hals durch ein Innengewinde mit dem Gewinde der Gewindespindel in Eingriff steht und deren Spreizschenkel mittels eines Spreizkegels gespreizt werden können. Der Spreizkegel besitzt einen langen, die als Hohlkörper ausgebildete Gewindespindel durchragenden Schaft, der an seinem oberen Ende mit einem aus dem oberen Ende der Gewindespindel herausragenden Gewinde versehen ist und mittels einer Mutter, die auf der oberen Stirnfläche der hohlen Gewindespindel aufsitzt, in axialer Richtung gespannt werden kann. Die Gewindespindel selbst ist ebenfalls mit einer Spannmutter versehen, die sich auf einem Ringlager des Querträgers abstützt.In another known device for pulling out ball bearings, bearing bushes and bearing rings or the like from their sockets and housings, diametrically opposed, radially adjustable support feet are arranged on a cross member with respect to a threaded spindle, which on the edge of a component on the For example, a ball bearing should be pulled out, can be placed (DE-PS 857 329). The threaded spindle is provided at its lower end with a collet, the neck of which engages with the thread of the threaded spindle by means of an internal thread and the expansion limbs of which can be expanded by means of an expansion cone. The expansion cone has a long shaft which projects through the hollow body and which is provided at its upper end with a thread protruding from the upper end of the threaded spindle and clamped in the axial direction by means of a nut which is seated on the upper end face of the hollow threaded spindle can be. The threaded spindle itself is also provided with a clamping nut, which is supported on a ring bearing of the cross member.

Mit dieser Vorrichtung können zwar ringartige Teile aus Bohrungen herausgezogen werden. Zum Herausdrücken von Radflanschnaben oder Keilnaben aus Wellenlagern eines Lagerzylinders von Kraftfahrzeugen sind derartige Vorrichtungen jedoch nicht geeignet.With this device ring-like parts can be pulled out of bores. However, devices of this type are not suitable for pressing out wheel flange hubs or spline hubs from the shaft bearings of a bearing cylinder of motor vehicles.

Bei einer anderen bekannten Vorrichtung ähnlicher Art (US-PS 3 611 540), die zum Herausziehen einer aus einem Metallring und einem elastischen Ring bestehenden, in einer zylindrischen Bohrung sitzenden und einen Wellenstumpf umschließenden Ringdichtung dient, ist ein Ziehrohr vorgesehen, das an seinem vorderen Ende in radialer Richtung verjüngte, relativ dünne, mit hakenförmigen Greifschultern versehene Spreizfinger aufweist, die durch den elastischen Ring hindurchgeschoben werden können. In diesem Ziehrohr sitzt eine axial bewegliche Spreizhülse, deren aus den Spreizfingern herausragendes Ende eine konusartige Erweiterung aufweist und deren gegenüberliegendes Ende mit einem Innengewinde versehen ist, in weiches ein Gewindebolzen eingeschraubt ist, der mit einem Schlüsselkopf auf dem stirnseitigen Ende eines Ziehrohres aufsitzt. Mit Hilfe dieses Gewindebolzens läßt sich die Spreizhülse relativ zum Ziehrohr axial bewegen, so daß die Spreizfinger gespreizt werden können. Im Gewindebolzen selbst, der mit einer koaxialen Gewindebohrung versehen ist, sitzt eine Gewindedruckspindel, die an ihrem aus dem Gewindebolzen herausragenden Ende mit einem Schlüsselkopf und am gegenüberliegenden Ende mit einem Druckstück versehen ist, das auf der Stirnfläche einer von der Ringdichtung umschlossenen Welle aufgesetzt werden kann. Auch diese Vorrichtung ist nicht für den erfindungsgemäßen Zweck geeignet.In another known device of a similar type (US Pat. No. 3,611,540), which is used to pull out a ring seal consisting of a metal ring and an elastic ring, which is seated in a cylindrical bore and surrounds a stub shaft, a pulling tube is provided, which is provided on its front End has in the radial direction tapered, relatively thin, provided with hook-shaped gripping shoulders, which can be pushed through the elastic ring. In this drawing tube sits an axially movable expansion sleeve, the end protruding from the expansion fingers has a cone-like extension and the opposite end is provided with an internal thread into which a threaded bolt is screwed, which with a Key head sits on the front end of a pull tube. With the help of this threaded bolt, the expansion sleeve can be moved axially relative to the drawing tube, so that the expansion fingers can be expanded. In the threaded bolt itself, which is provided with a coaxial threaded bore, there is a threaded pressure spindle, which is provided with a key head at its end protruding from the threaded bolt and with a pressure piece at the opposite end, which can be placed on the end face of a shaft enclosed by the ring seal . This device is also not suitable for the purpose according to the invention.

Dasselbe gilt auch für eine andere bekannte Ziehvorrichtung, die zum Herausziehen von eingepreßten Ringen oder Kugellagern aus Hohlwellen, Rohren od. dgl. dient (US-PS 2 031 998). Diese Vorrichtung weist eine Stützglocke auf, die stirnseitig auf das Rohr, aus weicher der Ring oder das Kugellager herausgezogen werden soll, aufgesetzt werden kann. In dieser Stützglocke befindet sich frei drehbar eine Gewindespindel, deren unteres Ende mit einem Spreizkegel versehen ist und deren oberes, aus der Stützglocke herausragendes Ende mit einer Knebelmutter versehen ist, die auf einer Gegendruckfläche der Stützglocke aufsitzt. Auf dem Spreizkegel sitzen zwei sich diametral gegenüberliegend angeordnete Spreizfinger, die mit radial nach außen vorspringenden hakenartigen Greifelementen versehen sind, welche den herauszuziehenden Ring hintergreifen können. Diese Spreizfinger sind mit radialen Winkelstücken versehen, die Bohrungen aufweisen, durch welche die Gewindespindel hindurchragt. Oberhalb und unterhalb dieser beiden Winkelstücke sind jeweils Gewindemuttern angeordnet, mit deren Hilfe die axiale Position dieser Spreizfinger auf der Gewindespindel festgelegt werden kann.The same also applies to another known pulling device, which is used to pull pressed rings or ball bearings out of hollow shafts, pipes or the like (US Pat. No. 2,031,998). This device has a support bell, which can be placed on the end face of the tube from which the ring or the ball bearing is to be pulled out. In this support bell is a freely rotatable threaded spindle, the lower end of which is provided with an expansion cone and the upper end, which protrudes from the support bell, is provided with a toggle nut which is seated on a counterpressure surface of the support bell. On the expanding cone are two diametrically opposed spreading fingers, which are provided with radially outwardly projecting hook-like gripping elements which can reach behind the ring to be pulled out. These spreading fingers are provided with radial angle pieces which have bores through which the threaded spindle protrudes. Threaded nuts are arranged above and below these two angle pieces, with the help of which the axial position of these spreading fingers can be fixed on the threaded spindle.

Abgesehen davon, daß alle bekannten Vorrichtungen nicht für den erfindungsgemäßen Zweck verwendbar sind, haftet ihnen zusätzlich noch der Mangel an, daß ihre Spreizelemente jeweils auf ganz bestimmte Durchmesser abgestimmt sind und daß sie deshalb nicht auf relative weite Durchmesserbereiche eingestellt werden können.In addition to the fact that all known devices cannot be used for the purpose according to the invention, they also suffer from the lack that their spreading elements are each matched to very specific diameters and that they can therefore not be adjusted to relatively wide diameter ranges.

Der Erfindung liegt die Aufgabe zu Grunde, eine einfache, möglichst raumsparende und auf unterschiedliche Durchmesser von Lagerzylindern einstellbare Vorrichtung der eingangs genannten Art zu schaffen, mit der es auf einfache Weise und mit der erforderlichen Betriebssicherheit möglich ist, Radflanschnaben bzw. Flanschkeilnaben von Kraftfahrzeugen aus ihren Wellenlagern, in denen sie festsitzen, herauszudrücken und dabei sicher zu stellen, daß die Druckkräfte, die zum Herausdrücken erforderlich sind, in exakt koaxialer Richtung wirksam werden und daß eine Beschädigung der Nabe mit Sicherheit vermieden wird.The invention has for its object to provide a simple, space-saving and adjustable to different diameters of bearing cylinders device of the type mentioned, with which it is possible in a simple manner and with the necessary operational reliability, wheel flange hubs or flange splines of motor vehicles from their Push out shaft bearings in which they are stuck, thereby ensuring that the compressive forces required for pressing out act in exactly the coaxial direction and that damage to the hub is avoided with certainty.

Gelöst wird diese Aufgabe erfindungsgemäß dadurch, daß die beiden Spreizsektoren aus separaten, schalenartigen, halbzylindrischen Körpern bestehen, die an ihren einem ringscheibenartigen Stützglied zugewandten Stirnflächen jeweils mittig angeordnete Axialstifte aufweisen, daß das Stützglied mit mehreren jeweils paarweise auf gleichen Radien liegenden Axialbohrungen mit unterschiedlichen Abständen von der Mittelachse der Gewindebohrung versehen ist, in welche die Axialstifte schwenkbeweglich einsteckbar sind, und daß das Druckstück tellerartig ist.This object is achieved according to the invention in that the two spreading sectors consist of separate, shell-like, semi-cylindrical bodies, each of which has axially arranged axial pins on their end faces facing an annular disk-like support member, in that the support member has a plurality of axial bores each lying in pairs on the same radius with different distances from the central axis of the threaded bore is provided, in which the axial pins can be inserted pivotably, and that the pressure piece is plate-like.

Durch die erfindungsgemäße Gestaltung ist die vorteilhafte Möglichkeit gewährleistet, daß die Vorrichtung leicht zerlegbar und montierbar ist, und daß die Spreizsektoren auf sehr einfache Weise auf unterschiedliche Innendurchmesser verschiedener Lagerzylinder eingestellt werden können. Dabei ist der besondere Vorteil darin zu sehen, daß die Vorrichtung einfach aufgebaut und vor allem auf einfache Weise handhabbar ist.The design according to the invention ensures the advantageous possibility that the device can be easily dismantled and assembled, and that the spreading sectors can be set in a very simple manner to different inside diameters of different bearing cylinders. The particular advantage is that the device is simple in construction and, above all, easy to handle.

Durch die Ausgestaltung der Ansprüche 2 und 3 ist gewährleistet, daß das Druckstück sich selbsttätig beim Wirksamwerden der Druckkräfte in der Bohrung der zu lösenden Radflanschnabe bzw. Flanschkeilnabe zentriert.The configuration of claims 2 and 3 ensures that the pressure piece automatically centers itself in the bore of the wheel flange hub or flange spline hub when the pressure forces become effective.

Durch die Ausgestaltung der Erfindung nach den Ansprüchen 4 und 5 ist sichergestellt, daß die Vorrichtung auch in solchen Fällen mit dem beweglichen Druckstück angewendet werden kann, bei denen die Ringnut des Lagerzylinders sich unmittelbar an der Stirnfläche des Wellenlagers befindet.The embodiment of the invention according to claims 4 and 5 ensures that the device can also be used with the movable pressure piece in those cases in which the annular groove of the bearing cylinder is located directly on the end face of the shaft bearing.

Des weiteren wird durch die Merkmale des Anspruches 5 gewährleistet, daß sich der Spreizkegel in axialer Richtung auch dann noch innerhalb der beiden Spreizsektoren befindet und beim Ansetzen der Spreizsektoren in einer Ringnut nicht hinderlich ist, wenn diese auf den kleinstmöglichen Spreizdurchmesser eingestellt sind. Das erweitert die Anwendung derselben Vorrichtung insofern, als sie auf unterschiedliche Innendurchmesser von Lagerzylindern ohne weiteres einstellbar ist.Furthermore, it is ensured by the features of claim 5 that the expansion cone is still in the axial direction within the two expansion sectors and is not a hindrance when the expansion sectors are set in an annular groove if these are set to the smallest possible expansion diameter. This extends the use of the same device in that it can be easily adjusted to different inside diameters of bearing cylinders.

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

  • Fig. 1 in perspektivischer Explosionsdarstellung eine Vorrichtung der eingangs genannten Art mit einer in einem Radlager eines Kraftfahrzeuges sitzenden Radflanschnabe bzw. Flanschkeilnabe;
  • Fig. 2 in häufig geschnittener Darstellung die Vorrichtung der Fig. 1 in ihrer Benutzungslage;
  • Fig. 3 ein als Ringscheibe ausgebildetes Stützglied in axialer Stirnansicht;
  • Fig. 4 eine Stirnansicht der beiden Spreizsektoren.
An embodiment of the invention will now be explained in more detail with reference to the drawing. It shows:
  • 1 shows a perspective exploded view of a device of the type mentioned at the outset with a wheel flange hub or flange spline hub seated in a wheel bearing of a motor vehicle;
  • FIG. 2 shows the device of FIG. 1 in its position of use in a frequently cut representation;
  • 3 shows a support member designed as an annular disk in an axial end view;
  • Fig. 4 is an end view of the two spreading sectors.

In den Fig. 1 und 2 der Zeichnung ist außer der erfindungsgemäßen Vorrichtung auch der Lagerzylinder 1 eines Kraftfahrzeug-Achsschenkels 2 mit einer Radflanschnabe 3 dargestellt. Die Radflanschnabe 3 besitzt eine zylindrische, hohle Keilnabe 4, die in ein als Radlager dienendes Wälzlager 5 festsitzend eingepreßt ist und mit Hilfe der erfindungsgemäßen Vorrichtung in Richtung des Pfeiles 6 aus diesem Wälzlager 5, welches zumindest zunächst im Lagerzylinder 1 verbleibt, herausgedrückt werden soll. Das Wälzlager 5 ist in die zylindrische Bohrung 7 des Lagerzylinders 1 eingepreßt und gegen Axialverschiebung durch zwei in Ringnuten 8 und 9 sitzende Sicherungsringe 10 gesichert. Zum Ansetzen der im folgenden als Druckwerkzeug 11 bezeichneten erfindungsgemäßen Vorrichtung, die zum Herausdrücken der Radflanschnabe aus dem Wälzlager 5 dient, ist der Sicherungsring 10 aus der Ringnut 8 bereits entfernt worden und deshalb in Fig. 1 und 2 nicht sichtbar.1 and 2 of the drawing, in addition to the device according to the invention, the bearing cylinder 1 of a motor vehicle steering knuckle 2 with a wheel flange hub 3 is also shown. The wheel flange hub 3 has a cylindrical, hollow spline hub 4, which is pressed into a roller bearing 5 serving as a wheel bearing and is to be pressed out with the aid of the device according to the invention in the direction of arrow 6 from this roller bearing 5, which at least initially remains in the bearing cylinder 1. The roller bearing 5 is pressed into the cylindrical bore 7 of the bearing cylinder 1 and gesi against axial displacement by two locking rings 10 seated in ring grooves 8 and 9 chert. To attach the device according to the invention, hereinafter referred to as the pressure tool 11, which serves to press the wheel flange hub out of the roller bearing 5, the securing ring 10 has already been removed from the annular groove 8 and is therefore not visible in FIGS. 1 and 2.

Das Druckwerkzeug 11 besteht aus zwei sich in bezug auf eine gemeinsame Achse 12 diametral bzw. spiegelbildlich gegenüberliegenden, aus halbzylindrischen Schalenkörpern bestehende Spreizsektoren 13 und 14, einem Stützglied 15, einem Spreizkegel 16 mit einer hohlen Gewindespindel 17, die mit einem Muttergewinde 18 versehen ist, und einer Druckspindel 19 sowie einem Druckstück 20, welches elastisch auf einem zylindrischen Stirnansatz 21 der Druckspindel 19 angeordnet ist. Das Muttergewinde braucht sich nicht über die gesamte Länge der Gewindespindel 17 erstrecken. Die beiden an sich gleich ausgebildeten Spreizsektoren 13 und 14 sind an ihren dem Stützglied 15 zugekehrten Stirnseiten jeweils mit seitig angeordneten Axiaistiften 22 bzw. 23 versehen, welche in paarweise auf jeweils gleichem Radius angeordnete Axialbohrungen 24 bzw. 25 des als zylindrische Scheibe ausgebildeten Druckstückes 15 einsteckbar sind. Die Durchmesser der Axialbohrungen 24 und 25 sind dabei größer als die Durchmesser der Axialstifte 22 und 23, so daß die Spreizsektoren 13 und 14, wenn die Axialstifte 22 und 23 in den Axialbohrungen 24 und 25 stecken, auch in radialer Richtung schwenkbeweglich sind. Wie aus den Fig. 1 und 3 ersichtlich ist, besitzt das Druckstück insgesamt drei Paare solcher Axialbohrungen, nämlich noch die zusätzlichen Axialbohrungspaare 26 und 27 bzw. 28 und 29, die jeweils symmetrisch zur Mittelachse bzw. zum Zentrum des scheibenförmigen Stützgliedes 15 angeordnet sind und deren Abstände R1 bzw. R2 und R3 unterschiedlich groß sind bzw. jeweils paarweise auf unterschiedlich großen Radien R1/2, R2/2 bzw. R3/2 angeordnet sind. Mit Hilfe dieser unterschiedlich weit voneinander angeordneten Axialbohrungen 24 bis 29 ist es möglich, die beiden Spreizsektoren 14 und 15 auf verschiedene Spanndurchmesser einzustellen. Das scheibenförmige Stützglied 15 ist zudem mit einer zentralen Gewindebohrung 30 ver sehen, in welche die Gewindespindel 17 einschraubbar bzw. im montierten Zustand eingeschraubt ist. Um die Gewindespindel 17 mittels eines Schlüssels in der Gewindebohrung 30 verdrehen zu können, ist sie an ihrem freien Ende mit zwei sich diametral gegenüberliegenden Schlüsselflächen 31 versehen, während die Druckspindel 19 einen Sechskantschlüsselkopf 32 besitzt. Auf dem Stirnansatz 21 der Druckspindel 19 ist in einer entsprechenden Ringnut ein gummielastischer O-Ring 21' angeordnet, auf den das aus einer konischen Scheibe bestehende Druckstück 20, dessen zentrale Bohrung 20' einen größeren Durchmesser aufweist als der Stirnansatz 21 der Druckspindel 19, mit leichtem Spannsitz aufgeschoben ist. Wie am besten aus den Fig. 1 und 2 ersichtlich ist, weisen die beiden Spreizsektoren 13, 14 an den vom Stützglied 15 abgewandten Endabschnitten im Durchmesser erweiterte innere Ausnehmungen 33 auf, in welche der Spreizkegel 16 frei einführbar ist, während die restlichen Abschnitte der beiden Spreizsektoren jeweils halbkreisförmige Ausnehmungen 34 kleineren Durchmessers aufweisen, welche am Übergang zu den größeren Ausnehmungen 33 jeweils Spreizkanten 35 bilden, die konisch oder abgerundet sein können und an denen der Spreizkegel 16 mit seiner kegeligen Mantelfläche anliegt. Es ist aus Fig. 2 ersichtlich, daß die Spreizkanten 35 von den Stirnkanten 13' bzw. 14' der Spreizsektoren 13 bzw. 14 einen gewissen axialen Abstand aufweisen. Dieser Abstand ist so gewählt, daß dann, wenn die beiden Spreizsektoren 13 und 14 auf den kleinstmöglichen Durchmesser einer Lagerbohrung 7 bzw. einer Ringnut 8 eingestellt sind, der Spreizkegel 16 beim Einführen der Spreizsektoren 13, 14 in die Ringnut 8 nicht axial aus den Spreizsektoren 13, 14 herausragt. Der Mindestabstand muß dabei wenigstens annähern dem Spreizhub des Spreizkegels 16 entsprechen. An den dem Stützglied 15 gegenüberliegenden Enden besitzen die beiden Spreizsektoren 13 und 14 radial nach außen vorspringende, rippenartige Verankerungsvorsprünge 36 und 37, die, wie aus Fig. 2 ersichtlich ist, formschlüssig in die Ringnut 8 des Lagerzylinders 1 einsetzbar sind. Zum Verspannen dieser Verankerungsvorsprünge 36, 37 in der Ringnut 8 wird der Spreizkegel 16 mit Hilfe der Gewindespindel 17 relativ zu den beiden Spreizsektoren 13 und 14 in Richtung des Pfeiles 38 bewegt, so daß sich eine axiale Verankerung der beiden Spreizsektoren 13 und 14 in der Ringnut 8 ergibt. Danach ist es lediglich noch erforderlich, die Druckspindel 19 durch Ansetzen eines Drehschlüssels am Sechskantschlüsselkopf 32 so zu drehen, daß eine Axialbewegung in Richtung des Pfeiles 6 entsteht, durch welche das Druckstück 20, das sich an der mit Keilnuten 4' versehenen Bohrung der Keilnabe 4 selbst zentrieren kann, die Radflanschnabe 3 insgesamt aus dem Wälzlager 5, das weiterhin gegen Axialverschiebung durch den Sicherungsring 10 gesichert ist, herausdrückt. Gelöst wird danach das Druckwerkzeug 11 aus dem Lagerzylinder 1 dadurch, daß die Gewindespindel 17 in entgegengesetzter Richtung gedreht wird, so daß der Spreizkegel 16 sich relativ zu den beiden Spreizsektoren 13 und 14 in Richtung des Pfeiles 6 bewegt und dadurch ein Lösen der Verankerungsvorsprünge 36 und 37 aus der Ringnut 8 ermöglicht. Um die beiden Spreizsektoren 13 und 14 auch im gelösten Zustand des Druckwerkzeuges 11 zusammen zu halten, ist eine zu einem Ring zusammengefügte Schraubenfeder 39 vorgesehen, die in äußeren Ringnuten 40 der beiden Spreizsektoren 13 und 14 geführt ist. Weil die Ringnut 8 des Lagerzylinders 1, in weiche die rippenartigen Verankerungsvorsprünge 36 und 37 der beiden Spreizsektoren 13 und 14 verankert werden, in unmittelbarer Nähe der Stirnfläche des Wälzlagers 5 bzw. der Keilnabe 4 liegt ist es erforderlich, für das Druckstück 20 innerhalb der Axiallänge der beiden Spreizsektoren 13 und 14 einen Freiraum vorzusehen, in welchen das Druckstück 20 in axialer Richtung versenkt werden kann, wenn die Befestigung der beiden Spreizsektoren 13 und 14 in der Ringnut 8 erfolgt. Für Anwendungsfälle, bei denen der Ringnutdurchmesser 8 bzw. der Durchmesser der Zylinderbohrung 7 des Lagerzylinders 1 so groß ist, daß die beiden Spreizsektoren 13 und 14 relativ weit gespreizt werden müssen und zu diesem Zweck der Spreizkegel 16 in axialer Richtung relativ weit in die Spreizsektoren 13 und 14 hineingezogen würden, wie aus der Fig. 2 ersichtlich ist, die beiden Ausnehmungen 33 ausreichen, das Druckstück 20 axial tief genug in die beiden Ringsektoren 13 und 14 einführen zu können. In Fällen jedoch, bei denen kleinere Durchmesser einer Ringnut 8 vorliegen und demzufolge der Spreizkegel 16 beim Ansetzen der Verankerungsvorsprünge 36, 37 in die Ringnut 8 mit seiner hinteren Stirnfläche 41 in unmittelbarer Nähe der Ringnut 8 liegt, ist es erforderlich, in der Stirnfläche 41 des Spreizkegels 16 eine Ausnehmung 42 vorzusehen, in welche das Druckstück 20 versenkt werden kann.The pressure tool 11 consists of two spreading sectors 13 and 14, which are diametrically or mirror-image opposite one another with respect to a common axis 12, a support member 15, a spreading cone 16 with a hollow threaded spindle 17, which is provided with a nut thread 18, and a pressure spindle 19 and a pressure piece 20, which is arranged elastically on a cylindrical end projection 21 of the pressure spindle 19. The nut thread does not have to extend over the entire length of the threaded spindle 17. The two spreading sectors 13 and 14, which are of identical design, are each provided on their end faces facing the support member 15 with axial pins 22 and 23 arranged on the side, which can be inserted in axial bores 24 and 25, respectively, of the same pressure, which are arranged in pairs on the same radius are. The diameter of the axial bores 24 and 25 are larger than the diameter of the axial pins 22 and 23, so that the expansion sectors 13 and 14, when the axial pins 22 and 23 are inserted in the axial bores 24 and 25, can also be pivoted in the radial direction. As can be seen from FIGS. 1 and 3, the pressure piece has a total of three pairs of such axial bores, namely still the additional pairs of axial bores 26 and 27 or 28 and 29, which are each arranged symmetrically to the central axis or to the center of the disk-shaped support member 15 and whose distances R1 or R2 and R3 are of different sizes or are arranged in pairs on differently sized radii R1 / 2, R2 / 2 or R3 / 2. With the help of these differently spaced axial bores 24 to 29, it is possible to set the two expansion sectors 14 and 15 to different clamping diameters. The disc-shaped support member 15 is also seen with a central threaded bore 30 ver, in which the threaded spindle 17 can be screwed or screwed in the assembled state. In order to be able to turn the threaded spindle 17 in the threaded bore 30 by means of a key, it is provided at its free end with two diametrically opposed key surfaces 31, while the pressure spindle 19 has a hexagon key head 32. On the front end 21 of the pressure spindle 19, a rubber-elastic O-ring 21 'is arranged in a corresponding annular groove, onto which the pressure piece 20 consisting of a conical disc, the central bore 20' of which has a larger diameter than the front end 21 of the pressure spindle 19 slight tension seat is pushed on. As can best be seen from FIGS. 1 and 2, the two expansion sectors 13, 14 have, on the end sections facing away from the support member 15, enlarged inner recesses 33 into which the expansion cone 16 can be freely inserted, while the remaining sections of the two Spreading sectors each have semicircular recesses 34 of smaller diameter, which each form spreading edges 35 at the transition to the larger recesses 33, which can be conical or rounded and against which the spreading cone 16 lies with its conical outer surface. It can be seen from FIG. 2 that the spreading edges 35 are at a certain axial distance from the end edges 13 'and 14' of the spreading sectors 13 and 14, respectively. This distance is chosen so that when the two expansion sectors 13 and 14 are set to the smallest possible diameter of a bearing bore 7 or an annular groove 8, the expansion cone 16 does not axially out of the expansion sectors when the expansion sectors 13, 14 are inserted into the annular groove 8 13, 14 protrudes. The minimum distance must at least correspond to the expansion stroke of the expansion cone 16. At the ends opposite the support member 15, the two expansion sectors 13 and 14 have radially outwardly projecting, rib-like anchoring projections 36 and 37 which, as can be seen from FIG. 2, can be inserted in a form-fitting manner in the annular groove 8 of the bearing cylinder 1. To brace these anchoring projections 36, 37 in the annular groove 8, the expansion cone 16 is moved with the aid of the threaded spindle 17 relative to the two expansion sectors 13 and 14 in the direction of the arrow 38, so that the two expansion sectors 13 and 14 are axially anchored in the annular groove 8 results. Thereafter, it is only necessary to turn the pressure spindle 19 by attaching a rotary key to the hexagon key head 32 so that an axial movement occurs in the direction of arrow 6, through which the pressure piece 20, which is located on the bore of the spline hub 4 provided with splines 4 ′ can center itself, pushes the wheel flange hub 3 out of the roller bearing 5, which is still secured against axial displacement by the locking ring 10. Then the printing tool 11 is released from the bearing cylinder 1 in that the threaded spindle 17 is rotated in the opposite direction, so that the expansion cone 16 moves relative to the two expansion sectors 13 and 14 in the direction of arrow 6 and thereby loosening the anchoring projections 36 and 37 from the annular groove 8 allows. In order to hold the two expansion sectors 13 and 14 together even when the printing tool 11 is in the released state, a helical spring 39 is provided which is joined to form a ring and is guided in outer annular grooves 40 of the two expansion sectors 13 and 14. Because the annular groove 8 of the bearing cylinder 1, into which the rib-like anchoring projections 36 and 37 of the two expansion sectors 13 and 14 are anchored, is in the immediate vicinity of the end face of the rolling bearing 5 or the spline hub 4, it is necessary for the pressure piece 20 within the axial length of the two expansion sectors 13 and 14 to provide a space in which the pressure piece 20 can be sunk in the axial direction when the two expansion sectors 13 and 14 are fastened in the annular groove 8. For applications in which the annular groove diameter 8 or the diameter of the cylinder bore 7 of the Bearing cylinder 1 is so large that the two expansion sectors 13 and 14 must be spread relatively far and for this purpose the expansion cone 16 would be drawn relatively far into the expansion sectors 13 and 14 in the axial direction, as can be seen from FIG. 2, the two Recesses 33 are sufficient to be able to insert the pressure piece 20 axially deep enough into the two ring sectors 13 and 14. In cases, however, in which there are smaller diameters of an annular groove 8 and consequently the expansion cone 16 when the anchoring projections 36, 37 are placed in the annular groove 8 with its rear end face 41 in the immediate vicinity of the annular groove 8, it is necessary in the end face 41 of the Spreading cone 16 to provide a recess 42 into which the pressure piece 20 can be sunk.

Durch das gleichzeitige Ansetzen der beiden sich diametral gegenüberliegenden Verankerungsvorsprünge 36 und 37 der beiden Spreizsektoren 13 und 14 in der Ringnut 8 und durch deren gleichmäßiges, d.h. symmetrische Spreizen, das durch den Spreizkegel 16 bewirkt wird, ergibt sich zugleich eine Zentrierung der Spreizkegelachse bzw. der damit identischen Gewindespindelachse in bezug auf die Achse der Ringnut 8 und somit auch auf die Achse des Wälzlagers 5. Daraus folgt, daß auch die Druckspindel 19 eine zur Achse 12 des Wälzlagers 5 bzw. der darin befestigten Keilnabe 4 eine exakt koaxiale Lage einnimmt, wenn die Achse der Ringnut 8 und die Achse der Bohrung 7, in welcher das Wälzlager 5 sitzt, exakt koaxial zueinander verlaufen. Geringe diesbezügliche Abweichungen können durch die elastische Lagerung des Druckstückes 20 auf dem Stirnansatz 21 der Druckspindel 19 ohne weiteres ausgeglichen werden. Es ist somit sichergestellt, daß die beim Drehen der Druckspindel 19 über das Druckstück 20 auf die Keilnabe 4 bzw. Radflanschnabe 3 ausgeübten Druckkräfte in bestmöglicher Weise achsparallel zur Achse des Wälzlagers 5 verlaufen und somit die größtmögliche Wirksamkeit und Funktionssicherheit gewährleisten. Aus der vorstehenden Beschreibung und der zeichnerischen Darstellungen ist für den Fachmann auch leicht erkennbar, daß sowohl der Aufbau als auch die Handhabung des Druckwerkzeuges 11 insgesamt sehr einfach ist.By the simultaneous placement of the two diametrically opposite anchoring projections 36 and 37 of the two expansion sectors 13 and 14 in the annular groove 8 and by their uniform, i.e. Symmetrical spreading, which is caused by the expansion cone 16, also results in a centering of the expansion cone axis or the threaded spindle axis, which is identical therewith, with respect to the axis of the annular groove 8 and thus also on the axis of the roller bearing 5. It follows that the pressure spindle 19 one to the axis 12 of the roller bearing 5 or the spline hub 4 fastened therein assumes an exactly coaxial position if the axis of the annular groove 8 and the axis of the bore 7 in which the roller bearing 5 is seated are exactly coaxial to one another. Small deviations in this regard can be easily compensated for by the elastic mounting of the pressure piece 20 on the front end 21 of the pressure spindle 19. It is thus ensured that the pressure forces exerted on the spline hub 4 or wheel flange hub 3 when the pressure spindle 19 is rotated via the pressure piece 20 run in the best possible way axially parallel to the axis of the roller bearing 5 and thus ensure the greatest possible effectiveness and functional reliability. From the above description and the drawings, it is also readily apparent to the person skilled in the art that both the structure and the handling of the printing tool 11 are very simple overall.

Claims (5)

1. A device for pressing wheel flange hubs or spline bore hubs on motor vehicles or the like out of a shaft bearing which is rigidly disposed in a bearing housing (1) provided at least on the end face of the bearing with an annular groove-like recess (8), consisting of expanding segments (13, 14) which are in each case braced at one end on a supporting member (15) having a central screw-threaded bore (30) and being provided in each case at the ends of their outer shells opposite the supporting member (15) with radial anchoring projections (36, 37) adapted for form-locking insertion into the recess in the bearing housing (1), the expanding segments (13, 14) being adapted to be opened out by means of an intermediate expanding cone (16) of a screw-threaded spindle (17) screwed into the screw-threaded bore (30) of the supporting member and provided with turnkey flats (31), there being screwed into a central continuous at least partially female threaded (18) axial bore in the expanding cone (16) or screw-threaded spindle (17), a thrust spindle (19) with a thrust member (20) which has a key head (32) at one end, characterised in that the two expanding segments (13, 14) consist of separate shell-like semi-cylindrical bodies having on their end faces towards an annular disc-like supporting member (15) centrally disposed axial pins (22, 23) and in that the supporting member (15) is provided with a plurality of axial bores (24, 25 or 26, 27 or 28, 29) disposed in pairs on the same radii (R1, R2, R3) and situated at different distances from the central axis of the screw-threaded bore into which the axial pins (18) are pivotally movably insertable, and in that the thrust member is of plate-like construction.
2. A device according to Claim 1, characterised in that the thrust member (20) has a frustoconical outer surface.
3. A device according to Claim 1 or 2, characterised in that the thrust member (20) is, by means of an O-ring (21') resiliently mounted on a journal (21) at the end of the thrust spindle (9).
4. A device according to Claim 1, characterised in that the expanding segments (13, 14) have on their inside an annular edge (35) or annular surface seated on the expanding cone (16) and which is offset in relation to the anchoring projections (36, 37) towards the supporting member (15) and axially by an amount which corresponds at least to the axial expansion travel of the expanding cone (16).
5. A device according to Claim 1, characterised in that the expanding cone (16) has on its end face (14) which is opposite the screw-threaded spindle (17) a depression (42) in which the thrust member (2) of the thrust spindle (19) is adapted to be at least partially and axially concealed.
EP86108835A 1985-08-28 1986-06-28 Device for pushing out the hub of a wheel flange or a splined flange hub of a motor car or the like from a shaft bearing Expired EP0215207B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86108835T ATE48390T1 (en) 1985-08-28 1986-06-28 DEVICE FOR PRESSING OUT WHEEL FLANGE HUBS OR FLANGE HUBS FROM MOTOR VEHICLES OD. DGL. FROM A SHAFT BEARING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3530726A DE3530726C1 (en) 1985-08-28 1985-08-28 Device for pushing out wheel flange hubs or flange splined hubs of motor vehicles or the like. from a shaft bearing
DE3530726 1985-08-28

Publications (2)

Publication Number Publication Date
EP0215207A1 EP0215207A1 (en) 1987-03-25
EP0215207B1 true EP0215207B1 (en) 1989-12-06

Family

ID=6279572

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86108835A Expired EP0215207B1 (en) 1985-08-28 1986-06-28 Device for pushing out the hub of a wheel flange or a splined flange hub of a motor car or the like from a shaft bearing

Country Status (9)

Country Link
US (1) US4682395A (en)
EP (1) EP0215207B1 (en)
JP (1) JPS6248467A (en)
AT (1) ATE48390T1 (en)
AU (1) AU579488B2 (en)
CA (1) CA1256680A (en)
DE (1) DE3530726C1 (en)
DK (1) DK157235C (en)
ES (1) ES295326Y (en)

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DE3730017C1 (en) * 1987-09-08 1989-01-26 Horst Klann Device for pressing in and pulling out bearings or sleeves, in particular for axle bearings and / or wheel flange hubs on motor vehicles
US4896412A (en) * 1989-02-27 1990-01-30 Brunswick Corporation Assembly tool for marine drive lower gearcase
US4977661A (en) * 1989-08-07 1990-12-18 Wood Thomas H Carrier bearing and axle bearing puller
US5131129A (en) * 1991-08-27 1992-07-21 Caterpillar Inc. Tool assembly
US5210919A (en) * 1992-04-27 1993-05-18 Caterpillar Inc. Tool assembly
DE29715780U1 (en) * 1997-09-03 1999-01-07 Arends Berend Puller, preferably for motor vehicle wheel bearings
US5991994A (en) * 1998-02-03 1999-11-30 Chrysler Corporation Bearing removal tool for a wheel hub
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
US6539601B1 (en) 2002-06-10 2003-04-01 Floyd E. Cloward Bearing press
US6886227B1 (en) 2003-03-13 2005-05-03 Terry L. Hedrick Low impact shaft remover
DE102005011806B4 (en) * 2004-03-20 2008-10-02 Klann-Spezial-Werkzeugbau-Gmbh Flexible squeezing device for damping bushes of a motor vehicle axle
DE202005008241U1 (en) * 2005-05-23 2005-07-21 Klann-Spezial-Werkzeugbau-Gmbh Tool system for the exchange of a glow plug, at a diesel motor cylinder head, has clamping and centering sleeves inserted into the cylinder head opening to align and center the tools
DE102010052122A1 (en) * 2010-11-22 2012-05-24 Tracto-Technik Gmbh & Co. Kg Device for removing a seated on a wheel hub of a motor vehicle rim
CN104842146A (en) * 2015-05-22 2015-08-19 泉州市汉威机械制造有限公司 Method of removing hub of die wheel
CN106323739A (en) * 2016-09-28 2017-01-11 重庆圣巴巴拉实业有限公司 Rotation bending testing machine hub retreating device
TWM578743U (en) * 2018-08-01 2019-06-01 蘭陽水漾科技股份有限公司 Improved device of water pumping device
USD931698S1 (en) * 2020-01-30 2021-09-28 G & G Technics Pty Ltd Harmonic balancer puller

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Also Published As

Publication number Publication date
EP0215207A1 (en) 1987-03-25
US4682395A (en) 1987-07-28
AU6189086A (en) 1987-03-05
JPH0217307B2 (en) 1990-04-20
ES295326Y (en) 1987-08-01
DE3530726C1 (en) 1986-09-18
AU579488B2 (en) 1988-11-24
DK405086A (en) 1987-03-01
JPS6248467A (en) 1987-03-03
DK405086D0 (en) 1986-08-26
CA1256680A (en) 1989-07-04
DK157235C (en) 1990-05-28
DK157235B (en) 1989-11-27
ES295326U (en) 1986-12-01
ATE48390T1 (en) 1989-12-15

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