DE19909285A1 - Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts - Google Patents

Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts

Info

Publication number
DE19909285A1
DE19909285A1 DE1999109285 DE19909285A DE19909285A1 DE 19909285 A1 DE19909285 A1 DE 19909285A1 DE 1999109285 DE1999109285 DE 1999109285 DE 19909285 A DE19909285 A DE 19909285A DE 19909285 A1 DE19909285 A1 DE 19909285A1
Authority
DE
Germany
Prior art keywords
hub
brake disc
wheel bearing
projections
bearing unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1999109285
Other languages
German (de)
Inventor
Heinrich Hofmann
Bernhard Wilm
Berthold Krautkraemer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHO Holding GmbH and Co KG
Original Assignee
FAG Automobiltechnik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FAG Automobiltechnik AG filed Critical FAG Automobiltechnik AG
Priority to DE1999109285 priority Critical patent/DE19909285A1/en
Publication of DE19909285A1 publication Critical patent/DE19909285A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/001—Hubs with roller-bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1308—Structure one-part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1356—Connection interlocking
    • F16D2065/1364—Connection interlocking with relative movement axially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/134—Connection
    • F16D2065/1384—Connection to wheel hub

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)

Abstract

The unit consists of hub with wheel bearing flange, to hold brake disc and rim. The hub (11) has radially outward directed projections (12) with fastening holes (13) in a first plane (15), and similar radial teeth (14) in a second plane (16), to hold the brake disc (41), which is mounted from the outside. Projections and teeth are positioned relative to each other, so that the projection width is directed into the free spaces between the teeth. The width of the space between two projections is the same as or larger than that of the radially inward raised parts (42) of the brake disc.

Description

Gebiet der ErfindungField of the Invention

Die Erfindung betrifft die Radlagereinheiten der Nutzfahrzeuge nach dem Oberbegriff des Anspruches 1.The invention relates to the wheel bearing units of commercial vehicles according to the Preamble of claim 1.

Hintergrund der ErfindungBackground of the Invention

In den Schriften "Fortschrittliche Radlagersysteme für Nutzfahrzeuge" ATZ Au­ tomobiltechnische Zeitschrift 96 (1994) 12 und in der SKF-Schrift "RVI Trucks fahren mit SKF Truck Hub Units" Dd 7611-92, sind Radlagereinheiten für Nutzfahrzeuge gezeigt, die folgenden Aufbau haben. Eine Nabe, an der über Schrauben die topfförmige Bremsscheibe und gleichzeitig ein Adapter befestigt ist. An diesem Adapter wird dann die Felge über einen zweiten Satz Schrauben befestigt. Die Nabe ist über Wälzlager mit dem Wellenzapfen verbunden.In the publications "Advanced Wheel Bearing Systems for Commercial Vehicles" ATZ Au tomobiltechnische Zeitschrift 96 (1994) 12 and in the SKF publication "RVI Trucks drive with SKF Truck Hub Units "Dd 7611-92, are wheel bearing units for Commercial vehicles shown that have the following structure. A hub on which over Screw the cup-shaped brake disc and at the same time an adapter is attached is. The rim is then attached to this adapter using a second set of screws attached. The hub is connected to the shaft journal via roller bearings.

Diese Konstruktion hat das Problem, daß sie aus vielen Einzelteilen besteht und daß diese Konstruktion schwer baut. So sind an einem Adapter zwei Rei­ hen Schrauben auf verschiedenen Teilkreisen notwendig, um die Felge zu be­ festigen. Die topfförmige Befestigungskonstruktion der Bremsscheibe ermög­ licht zwar eine Montage von der Felgenseite aus (d. h. Außenseite), besitzt aber aufgrund des topfförmigen Querschnittes ein großes Gewicht. Die Schrauben, die den Adapter und gleichzeitig die topfförmige Bremsscheibe befestigen, sind höchstbelastet, da das ganze Bremsmoment (bei angetriebe­ nen Rädern auch das Antriebsmoment) über die Vorspannung dieser Schrau­ ben auf einem kleinen Teilkreisdurchmesser übertragen werden muß.The problem with this construction is that it consists of many individual parts and that this construction is difficult to build. So there are two rows on one adapter hen screws on different pitch circles are necessary to the rim consolidate. The cup-shaped mounting structure of the brake disc enables light has an assembly from the rim side (i.e. outside) but due to the cup-shaped cross-section, it is very heavy. The Screws the adapter and at the same time the cup-shaped brake disc fasten, are extremely stressed, since the entire braking torque (with drive drive wheels) via the preload of this screw ben must be transmitted on a small pitch circle diameter.

Aufgabe der ErfindungObject of the invention

Es ergibt sich daraus die Aufgabe, eine Radlagereinheit für Nutzfahrzeuge auf­ zuzeigen, die ein kleineres Gewicht besitzt, aus weniger Teilen besteht und bei dem die Bremsscheibe leicht von außen zu montieren ist.This results in the task of creating a wheel bearing unit for commercial vehicles show that has a smaller weight, consists of fewer parts and at which the brake disc is easy to install from the outside.

Zusammenfassung der ErfindungSummary of the invention

Erfindungsgemäß wird dieses Problem durch den kennzeichnenden Teil des Anspruches 1 gelöst. Die Ansprüche 2 und 3 zeigen bevorzugte Ausführungs­ varianten.According to the invention, this problem is solved by the characterizing part of the Claim 1 solved. The claims 2 and 3 show preferred embodiment variants.

Durch das erfindungsgemäße direkte Befestigen der Felge an radialen Vor­ sprüngen der Nabe entfällt der ganze Adapter mit seiner Befestigung. Dies hat eine deutliche Reduzierung der Teile, sowie des Gewichtes zur Folge und die Befestigung liegt nun auf einem größeren Teilkreis. Letzteres bewirkt weiterhin, daß die Schraubenverbindung betriebssicherer wird.By directly attaching the rim to radial front according to the invention If the hub jumps, the entire adapter and its attachment are not required. this has a significant reduction in parts and weight, and the Attachment is now on a larger pitch circle. The latter continues to cause that the screw connection becomes more reliable.

Die Bremsscheibe ist bei der erfindungsgemäßen Konstruktion als ebene Bremsscheibe mit radial innenliegenden Erhebungen ausgeführt. Die ebene Bremsscheibe hat ein deutlich geringeres Gewicht, als die topfförmige Gestal­ tung nach dem Stand der Technik.The brake disc is in the construction according to the invention as a plane Brake disc with radially internal elevations. The level Brake disc has a significantly lower weight than the cup-shaped frame state of the art.

Um die ebene Bremsscheibe von der Außenseite aus montieren zu können, sind die Aussparungen zwischen den radialen Vorsprüngen der ersten Ebene und der Außendurchmesser dieser Vorsprünge so ausgelegt, daß die ebene Bremsscheibe mit den innenliegenden Erhebungen darüber geschoben werden kann. Die Bremsscheibe wird dann in der zweiten Ebene von den Zähnen auf­ genommen, wobei die innenliegenden Erhebungen eine formschlüssige Ver­ drehsicherung zwischen den Zähnen bewirken.In order to be able to mount the flat brake disc from the outside, are the recesses between the radial projections of the first level and the outer diameter of these projections designed so that the flat Brake disc with the internal elevations are pushed over it can. The brake disc is then on the second level by the teeth taken, the inner elevations a positive Ver cause rotation lock between the teeth.

Die Vorsprünge der ersten Ebene und die Verzahnung der zweiten Ebene sind so zueinander axial versetzt, daß bei einer Projektion der Freiräume zwischen zwei Vorsprüngen der ersten Ebene in die zweite Ebene die Breite der Verzah­ nung innerhalb der Freiräume liegt. Der Vorteil dieser Anordnung besteht darin, daß durch das Versetzen der Vorsprünge und Zähne in axialer Richtung keine Hinterscheidungen entstehen. Dies vereinfacht das Gießen dieses Teiles er­ heblich, da durch diese Konstruktion der Außenkern entfällt.The protrusions of the first level and the teeth of the second level are so axially offset from each other that when projecting the free spaces between two projections of the first level in the second level the width of the gear voltage lies within the open spaces. The advantage of this arrangement is that by moving the projections and teeth in the axial direction none  Differences arise. This simplifies the casting of this part Significantly, since this construction eliminates the outer core.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Die Erfindung wird anhand von vier Figuren näher beschriebenThe invention is described in more detail with reference to four figures

Fig. 1 zeigt den Stand der Technik einer Radlagereinheit bei Nutzfahrzeugen im Schnitt parallel zur Rotationsachse. Fig. 1 shows the prior art of a wheel bearing unit in commercial vehicles in a section parallel to the axis of rotation.

Fig. 2 zeigt einen Schnitt durch die erfindungsgemäße Radlagereinheit im Schnitt parallel zur Rotationsachse. Fig. 2 shows a section through the wheel bearing unit according to the invention in a section parallel to the axis of rotation.

Fig. 3 zeigt die erfindungsgemäße Nabe in der Draufsicht. Fig. 3 shows the hub according to the invention in plan view.

Fig. 4 zeigt die erfindungsgemäße Nabe in dreidimensionaler Darstellung mit montierter ebener Bremsscheibe. Fig. 4 shows the hub according to the invention in a three-dimensional representation with a flat brake disc mounted.

Detaillierte Beschreibung der ZeichnungDetailed description of the drawing

Fig. 1 zeigt den Stand der Technik. Der Wellenzapfen 8 führt über die Wälzla­ gerung 9 die Nabe 10. An der Nabe 10 ist über die hochbelasteten Schrau­ ben 20 der Adapter 30 und die topfförmige Bremsscheibe 40 befestigt. Am Ad­ apter 30 ist über die Schraubverbindung 50 die Felge 60 festgelegt. Fig. 1 shows the prior art. The shaft journal 8 leads over the Wälzla 9, the hub 10th On the hub 10 , the adapter 30 and the cup-shaped brake disk 40 are attached via the highly loaded screws ben 20 . The rim 60 is fixed on the adapter 30 via the screw connection 50 .

Fig. 2 zeigt die erfindungsgemäße Konstruktion der Radlagereinheit. Der Wellenzapfen 8 führt über die Wälzlagerung 9 die neue Nabe 11. An der Nabe 11 sind in der ersten Ebene 15 die radialen Vorsprünge 12 mit den axia­ len Bohrungen 13 angebracht. In der zweiten Ebene 16 sind die radialen Zäh­ ne 14 angeordnet. Die ebene Bremsscheibe 41 kann von der Außenseite aus montiert werden. Die radial innenliegenden Erhebungen 42 passen dabei durch den Freiraum zwischen den Vorsprüngen 12 und sind zur Verdrehsicherung der Bremsscheibe 41 in die Freiräume zwischen den Zähnen 14 angeordnet. Die Felge 61 wird über die Verschraubung 50 direkt mit der Nabe 11 verbunden. Fig. 2 shows the construction of the wheel bearing unit according to the invention. The shaft journal 8 guides the new hub 11 via the roller bearing 9 . On the hub 11 , the radial projections 12 with the axia len bores 13 are attached in the first plane 15 . In the second plane 16 , the radial teeth ne 14 are arranged. The flat brake disc 41 can be mounted from the outside. The radially inner elevations 42 fit through the space between the projections 12 and are arranged to prevent rotation of the brake disk 41 in the spaces between the teeth 14 . The rim 61 is connected directly to the hub 11 via the screw connection 50 .

Fig. 3 zeigt die Nabe 11 in der Draufsicht. Dabei ist die axial versetzte Anord­ nung der Vorsprünge 12 und der Zähne 14 deutlich sichtbar. Fig. 3 shows the hub 11 in plan view. The axially offset arrangement of the projections 12 and the teeth 14 is clearly visible.

Fig. 4 zeigt die Nabe 11 in 3D-Darstellung. Hierbei ist die montierte ebene Bremsscheibe 41 dargestellt. Die innenliegenden Erhebungen 42 der Brems­ scheibe 41 passen hierbei zwischen die Zähne 14 zur Verdrehsicherung der Bremsscheibe 41 in Umfangsrichtung. Fig. 4 shows the hub 11 in 3D. Here, the assembled flat brake disc 41 is shown. The internal elevations 42 of the brake disc 41 fit between the teeth 14 to prevent rotation of the brake disc 41 in the circumferential direction.

BezugszeichenlisteReference list

88th

Wellenzapfen
Shaft journal

99

Wälzlagerung
Rolling bearing

1010th

Nabe (Stand der Technik)
Hub (state of the art)

1111

Nabe mit Flansch
Flanged hub

1212th

Vorsprünge
Ledges

1313

Bohrung
drilling

1414

Zähne
teeth

1515

erste Ebene
first floor

1616

zweite Ebene
second level

2020th

Schrauben (Stand der Technik)
Screws (state of the art)

3030th

Adapter
adapter

4040

topfförmige Bremsscheibe (Stand der Technik)
cup-shaped brake disc (state of the art)

4141

ebene Bremsscheibe
flat brake disc

4242

innenliegende Erhebungen
internal surveys

5050

Schraubverbindung
Screw connection

5151

Radbolzen
Wheel bolts

6060

Felge (Stand der Technik)
Rim (state of the art)

6161

Felge
rim

Claims (3)

1. Radlagereinheit für Nutzfahrzeuge bestehend u. a. aus einer Nabe mit Radlagerflansch, der die von der Außenseite aus montierbare Brems­ scheibe und die Felge aufnimmt, dadurch gekennzeichnet, daß an der Nabe (11) an radial nach außen gerichteten Vorsprüngen (12) in einer er­ sten Ebene (15) Befestigungslöcher (13) vorgesehen sind und über ra­ dial nach außen gerichtete Zähne (14) in einer zweiten Ebene (16) die Bremsscheibe (41) aufgenommen wird, wobei die Vorsprünge (12) und die Zähne (14) so zueinander angeordnet sind, daß die Projektion der Breite der Vorsprünge (12) in die zweite Ebene (16) dort in die Freiräume zwischen den Zähnen (14) trifft.1. Wheel bearing unit for commercial vehicles consisting, inter alia, of a hub with a wheel bearing flange which accommodates the brake disk which can be mounted from the outside and the rim, characterized in that on the hub ( 11 ) on radially outward projections ( 12 ) in one he most Level ( 15 ) mounting holes ( 13 ) are provided and via ra dial outwardly directed teeth ( 14 ) in a second level ( 16 ) the brake disc ( 41 ) is received, the projections ( 12 ) and the teeth ( 14 ) so to each other are arranged so that the projection of the width of the projections ( 12 ) in the second plane ( 16 ) meets the free spaces between the teeth ( 14 ) there. 2. Radlagereinheit für Nutzfahrzeuge nach Anspruch 1, dadurch gekenn­ zeichnet, daß die Breite des Freiraums zwischen zwei Vorsprüngen (12) breiter oder gleich der Breite der radial innenliegenden Erhebungen (42) der Bremsscheibe (41) ist.2. Wheel bearing unit for commercial vehicles according to claim 1, characterized in that the width of the free space between two projections ( 12 ) is wider than or equal to the width of the radially inner elevations ( 42 ) of the brake disc ( 41 ). 3. Radlagereinheit für Nutzfahrzeuge nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Gußform der Nabe (11) mit Axialschieber her­ gestellt wird und somit der Außenkern beim Gießen entfällt.3. wheel bearing unit for commercial vehicles according to claim 1 or 2, characterized in that the mold of the hub ( 11 ) is provided with axial slide forth and thus eliminates the outer core during casting.
DE1999109285 1999-03-03 1999-03-03 Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts Withdrawn DE19909285A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999109285 DE19909285A1 (en) 1999-03-03 1999-03-03 Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999109285 DE19909285A1 (en) 1999-03-03 1999-03-03 Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts

Publications (1)

Publication Number Publication Date
DE19909285A1 true DE19909285A1 (en) 2000-09-07

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ID=7899552

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999109285 Withdrawn DE19909285A1 (en) 1999-03-03 1999-03-03 Wheel bearing unit for utility vehicles has rim fastened directly to axial projections on hub, and flat brake disc with radial inner raised parts

Country Status (1)

Country Link
DE (1) DE19909285A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025274A1 (en) * 2006-05-31 2007-12-06 Daimlerchrysler Ag Hub bearing unit for commercial motor vehicle, has outer ring attached into recess of hub ring, and stop unit of outer partial rings and elevation of recess of hub ring arranged opposite to each other
FR2921302A1 (en) * 2007-09-21 2009-03-27 Michelin Soc Tech Powered axle for semi-trailer tractor truck, has shaft with external part that is guided in rotation in bore by bearings, where internal rings of bearings are integrated to periphery of shaft and external rings are mounted in bore
WO2009068230A1 (en) * 2007-11-28 2009-06-04 Daimler Ag Wheel head for an axle of a motor vehicle
EP2098383A1 (en) * 2008-03-03 2009-09-09 Consolidated Metco, Inc. Disc rotor pilot
DE102008018326A1 (en) 2008-04-11 2009-10-15 Audi Ag Fixing device for friction ring of brake unit at wheel hub of motor vehicle, has detachable force-fit and form-fit connecting units for connecting friction ring and wheel hub, and radially formed towards axial extension

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025274A1 (en) * 2006-05-31 2007-12-06 Daimlerchrysler Ag Hub bearing unit for commercial motor vehicle, has outer ring attached into recess of hub ring, and stop unit of outer partial rings and elevation of recess of hub ring arranged opposite to each other
FR2921302A1 (en) * 2007-09-21 2009-03-27 Michelin Soc Tech Powered axle for semi-trailer tractor truck, has shaft with external part that is guided in rotation in bore by bearings, where internal rings of bearings are integrated to periphery of shaft and external rings are mounted in bore
WO2009068230A1 (en) * 2007-11-28 2009-06-04 Daimler Ag Wheel head for an axle of a motor vehicle
EP2098383A1 (en) * 2008-03-03 2009-09-09 Consolidated Metco, Inc. Disc rotor pilot
DE102008018326A1 (en) 2008-04-11 2009-10-15 Audi Ag Fixing device for friction ring of brake unit at wheel hub of motor vehicle, has detachable force-fit and form-fit connecting units for connecting friction ring and wheel hub, and radially formed towards axial extension
DE102008018326B4 (en) * 2008-04-11 2013-12-05 Audi Ag Fastening device for a friction ring of a brake unit

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: FAG KUGELFISCHER GEORG SCHAEFER AG, 97421 SCHWEINFURT

8127 New person/name/address of the applicant

Owner name: FAG KUGELFISCHER AG & CO. KG, 97421 SCHWEINFURT, D

8127 New person/name/address of the applicant

Owner name: FAG KUGELFISCHER AG, 97421 SCHWEINFURT, DE

8127 New person/name/address of the applicant

Owner name: FAG KUGELFISCHER AG & CO. OHG, 97421 SCHWEINFURT,

8141 Disposal/no request for examination