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DE2424649A1 - Torsion absorbing rear suspension cross-member - is welded to axle supports with slanted seams - Google Patents

Torsion absorbing rear suspension cross-member - is welded to axle supports with slanted seams

Info

Publication number
DE2424649A1
DE2424649A1 DE2424649A DE2424649A DE2424649A1 DE 2424649 A1 DE2424649 A1 DE 2424649A1 DE 2424649 A DE2424649 A DE 2424649A DE 2424649 A DE2424649 A DE 2424649A DE 2424649 A1 DE2424649 A1 DE 2424649A1
Authority
DE
Germany
Prior art keywords
rotation
axis
console
welded
crank arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE2424649A
Other languages
German (de)
Other versions
DE2424649C2 (en
Inventor
Manfred Schneeweiss
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.)
Audi AG
Original Assignee
Audi NSU Auto Union AG
Audi 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 Audi NSU Auto Union AG, Audi AG filed Critical Audi NSU Auto Union AG
Priority to DE19742424649 priority Critical patent/DE2424649C2/en
Publication of DE2424649A1 publication Critical patent/DE2424649A1/en
Application granted granted Critical
Publication of DE2424649C2 publication Critical patent/DE2424649C2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
    • B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
    • B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
    • B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
    • B60G21/051—Trailing arm twist beam axles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The rear wheels are mounted on training arms (9) hinged on the chassis by elastic bearings (2). The trailing arms are joined by a cross-member formed by a T-profiled metal strip, with the top section of the T (32) vertical. For improved strength the strip is joined to the trailing arms of sloping welds (25), with vertical section cut to lie along the top and bottom faces of the trailing arms. In this way large torsion forces can be transmitted along the strip without any danger of the weld seams tearing.

Description

Kraftwagenhinterachse Die Erfindung bezieht sich auf eine Kraftwagenhinterachse, bei der die Achszapfen der beiden Räder an je einem starren, an der Karosserie schwenkbar gelagerten Kurbelarm befestigt sind, die durch eine drehelastische in einer senkrechten Querebene biegesteife Querstrebe miteinander verbunden sind und bei der nach P 20 21 535.4/21 die Querstrebe als eine beide Kurbelarme vorzugsweise durch Schweißen verbindende Verdrehachse ausgebildet und in für sich bekannter Weise zwischen den Lagersch&len der Kurbelarme und den Achszapfen angeordnet ist. Motor vehicle rear axle The invention relates to a motor vehicle rear axle, in which the axle journals of the two wheels are each rigid and pivotable on the body mounted crank arm are attached by a torsionally flexible in a vertical Transverse plane rigid cross struts are connected to each other and in the case of P 20 21 535.4 / 21 the cross brace as one of the two crank arms, preferably by welding connecting axis of rotation and formed in a manner known per se between the Bearing bushes of the crank arms and the stub axles is arranged.

Aufgabe der Erfindung ist es, eine einfache und preisgünstige Weiterbildung dieser Hinterachse zu schaffen, die jede Entfernung der Verdrehachse von den Lagerschalen der Kurbelarme zuläßt.The object of the invention is to provide a simple and inexpensive further development this rear axle to create the every distance of the axis of rotation from the bearing shells the crank arms allows.

Die Lösung besteht darin, daß die Verdrehachse mit von der neutralen Faser des Querschnittprofils spitzwinkelig nach außen laufender Schweißnaht an den Kurbelarmen verbunden ist.The solution is that the axis of rotation coincides with the neutral Fiber of the cross-sectional profile at an acute angle outwardly running weld seam to the Crank arms is connected.

Die Verbindung der Verdrehachse und der Kurbelarme ist auf diese Weise durch lange Schweißnähte geschaffen, welche die Spannung ohne Gefahr von Anreißen oder Beschädigung übertragen. Nit einer solchen Achse sind, bezogen auf die Spurweite verhältnismäßig große Verdrehwinkel der Verdrehachse und damit große Federwege und ein bequemes und angenehmes Fahren für die Wageninsassen ermöglicht.The connection of the axis of rotation and the crank arms is in this way created by long weld seams, which reduce the tension without the risk of tearing transmitted or damage. There are no such axes, based on the track width relatively large angle of rotation of the axis of rotation and thus large spring travel and enables comfortable and pleasant driving for the car occupants.

Weiter kann die Verdrehachse einen offenen Profilquerschnitt aufweisen. Dadurch ist es möglich beispielsweise die Gurte in je eine Konsole an den Kurbelarmen einlaufen zu lassen und die Stege mit nach außen laufenden Schweißnähten an den Kurbelarmen zu verbinden.Furthermore, the axis of rotation can have an open profile cross-section. This makes it possible, for example, to place the belts in a console on the crank arms to run in and the webs with outwardly running welds on the Connect crank arms.

Bei einem T-förmigen Profilquerschnitt kann an der Verdrehachse an die kastenförmig profilierten Kurbelarme je eine Konsole anschließen, die sich zur Verdrehachse hin keilförmig verjüngt, der Gurt der Verdrehachse kann mit den Rändern der Konsole verschweißt sein und die Enden der Stege der Verdrehachse können die Konsole gabelförmig übergreifen und mit ihr verschweißt sein. So entstehen an den Schweißstellen lange im wesentlichen gleichmäßig belastete Zonen, die in vorteilhafter Weise mit elastischen Wänden der Kurbelarme zusammenwirken.In the case of a T-shaped profile cross-section, an the box-shaped profiled crank arms each connect a console that connects to the The axis of rotation tapers in the shape of a wedge, the belt of the axis of rotation can with the edges the console be welded and the ends of the webs of the axis of rotation can the Fork-shaped console overlap and be welded to her. This is how the Welds long essentially evenly loaded zones, which are advantageous Cooperate way with elastic walls of the crank arms.

Schließlich kann der Gurt der Verdrehachse ein Stück in die Konsole hineinragen. Dadurch ergeben sich zwei leicht herzustellende lange Schweißnähte, die mit zunehmendem Abstand von der neutralen Zone konkav gekrümmt oder in ähnlicher Weise im Verlauf den Spannungen angepaßt sein können.Finally, the belt of the axis of rotation can be part of the console protrude. This results in two easy-to-produce long weld seams, which curve concavely with increasing distance from the neutral zone or similar Way can be adapted to the tensions in the course.

Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.The drawing shows an embodiment of the invention.

Es zeigen: Fig. 1 eine Ansicht teilweise im Schnitt, in der in Fahrtrichtung gesehenen linken Seite der Kraftwagenhinterachse, Fig. 2 eine Draufsicht auf die Kraftwagenhinterachse aus Fig. 1, Fig. 3 einen Schnitt 111-111 aus Fig. 1.1 shows a view partially in section, in the direction of travel seen left side of the motor vehicle rear axle, Fig. 2 is a plan view of the Motor vehicle rear axle from FIG. 1, FIG. 3 shows a section 111-111 from FIG. 1.

Die Verdrehachse 12 ist mit einer Schweißnaht 25 mit dem Kurbelarm 9, 10 verbunden, die von der neutralen Faser - etwa bei 24 - spitzwinkelig nach außen verläuft. Die Verdrehachse 12 weist einen offenen Profilquerschnitt 26 auf, - n.B.The axis of rotation 12 is connected to the crank arm with a weld seam 25 9, 10 connected, that of the neutral fiber - approximately at 24 - at an acute angle to runs outside. The axis of rotation 12 has an open profile cross section 26, - n.B.

einen T- oder L- oder Z-förmigen Profilquerschnitt.a T-, L- or Z-shaped profile cross-section.

Bei einem T-förmigen Profilquerschnitt 26 der Verdrehachse 12 schließt an die kastenförmig profilierten Kurbelarme 9,10 je eine Konsole 27 an. Sie ist zur Verdrehachse 12 hin keilförmig verjüngt. Der Gurt 28 der Verdrehachse 12 ist mit Rändern 29 der Konsole 27 verschweißt. Die Ränder 30, 31 der Stege 32 der Verdrehachse 12 übergreifen die Konsole 27 gabelförmig und sind mit ihr verschweißt.In the case of a T-shaped profile cross section 26, the axis of rotation 12 closes a bracket 27 on each of the box-shaped profiled crank arms 9, 10. she is tapering towards the axis of rotation 12 in the shape of a wedge. The belt 28 of the axis of rotation 12 is welded to the edges 29 of the console 27. The edges 30, 31 of the webs 32 of the axis of rotation 12 overlap the console 27 in the shape of a fork and are welded to it.

Beim ungleichzeitigen Durchfedern der Räder werden die Spannungen an den Verbindungsstellen zwischen der Verdrehachse 12 und dem Kurbelarm 9 durch die Schweißnähte 26 aufgenommen, ohne daß dabei zu hohe Spannungen auftreten und in Abhängigkeit davon Risse entstehen können.If the wheels deflect at the same time, the tensions at the connection points between the axis of rotation 12 and the crank arm 9 the weld seams 26 recorded without excessive stresses occurring and cracks can occur depending on this.

Die gleichen Vorteile wie die Schweißnähte 25 bringen auch die Schweißnähte, mit denen die Enden 30, 31 an der Konsole 27 bzw.The same advantages as the weld seams 25 also bring the weld seams, with which the ends 30, 31 on the console 27 or

dem Kurbelarm 9 verschweißt sind. Auch sie erlauben durch ihre besondere Formgebung und ihre spitzwinkelige Anordnung von der neutralen Faser nach außen hin einen einigermaßen gleichmäßigen Spannungsverlauf.the crank arm 9 are welded. They too allow by their particular Shaping and its acute-angled arrangement from the neutral fiber to the outside a reasonably even tension curve.

Claims (4)

Patentansprüche: Patent claims: Kraftwagenhinterachse, bei der die Achszapfen der beiden Räder an je einem starren, an der Karosserie schwenkbar gelagerten Kurbelarm befestigt sind, die durch eine drehelastische in einer senkrechten Querebene biegesteife Querstrebe miteinander verbunden sind und bei der nach P 20 21 535.4/21 die Querstrebe als eine beide Kurbelarme vorzugsweise durch Schweißen verbindende Verdrehachse ausgebildet und in für sich bekannter Weise zwischen den Lagerschalen der Kurbelarme und den Achszapfen angeordnet ist, dadurch gekennzeichnet, daß die Verdrehachse (12) mit von der neutralen Faser spitzwinkelig nach außen laufenden Schweißnaht (25) an den Kurbelarmen (9,10) ver--bunden ist.Motor vehicle rear axle in which the axle journals of the two wheels are attached are each attached to a rigid crank arm pivoted to the body, the transverse strut that is rigid in a vertical transverse plane thanks to a torsionally flexible cross brace are connected to each other and in the case of P 20 21 535.4 / 21 the cross brace as formed a rotation axis that connects both crank arms, preferably by welding and in a manner known per se between the bearing shells of the crank arms and the Axle journal is arranged, characterized in that the axis of rotation (12) with from the neutral fiber at an acute angle outwardly running weld seam (25) to the Crank arms (9,10) is connected. 2. Kraftwagenhinterachse nach Anspruch 1, dadurch gekennzeichnet, daß die Verdrehachse (12) einen offenen Profilquerschnitt (26) aufweist. 2. Motor vehicle rear axle according to claim 1, characterized in that that the axis of rotation (12) has an open profile cross section (26). 3. Kraftwagenhinterachse nach Anspruch 1 und 2, dadurch gekennzeichnet, daß bei einem T-förmigen Profilquerschnitt der Verdrehachse (12) an die kastenförmig profilierten Kurbelarme (9,10) je eine Konsole (27) anschließt, die sich zur Verdrehachse (12) hin keilförmig verjüngt, der Gurt (28) der Verdrehachse (12) mit den Rändern (29) der Konsole verschweißt ist und die Enden (30,31) der Stege (32) der Verdrehachse (12) die Konsole (27) gabelförmig übergreifen und mit ihr verschweißt sind.3. Motor vehicle rear axle according to claim 1 and 2, characterized in that that with a T-shaped profile cross-section of the axis of rotation (12) to the box-shaped profiled crank arms (9,10) are each connected to a console (27), which is connected to the axis of rotation (12) tapers in the shape of a wedge, the belt (28) of the axis of rotation (12) with the edges (29) of the console is welded and the ends (30,31) of the webs (32) of the axis of rotation (12) overlap the console (27) in the shape of a fork and are welded to it. 4. Kraftwagenhinterachse nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Gurt (28) der Verdrehachse (12) ein Stück in die Konsole (27) hineinragt.4. Motor vehicle rear axle according to one or more of the preceding Claims, characterized in that the belt (28) of the axis of rotation (12) is one piece protrudes into the console (27).
DE19742424649 1974-05-21 1974-05-21 Motor vehicle rear axle Expired DE2424649C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742424649 DE2424649C2 (en) 1974-05-21 1974-05-21 Motor vehicle rear axle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742424649 DE2424649C2 (en) 1974-05-21 1974-05-21 Motor vehicle rear axle

Publications (2)

Publication Number Publication Date
DE2424649A1 true DE2424649A1 (en) 1975-12-04
DE2424649C2 DE2424649C2 (en) 1984-09-06

Family

ID=5916149

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742424649 Expired DE2424649C2 (en) 1974-05-21 1974-05-21 Motor vehicle rear axle

Country Status (1)

Country Link
DE (1) DE2424649C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547540A1 (en) * 1983-06-17 1984-12-21 Citroen Sa Vehicle carrier axle
FR2775935A1 (en) * 1998-03-11 1999-09-17 Peugeot Motor vehicle rear axle
US6672605B2 (en) 2000-12-22 2004-01-06 Mg Rover Group Limited Vehicle suspension systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2103399A1 (en) * 1971-01-26 1972-08-31 Audi Nsu Auto Union Ag, 7107 Neckarsulm Motor vehicle rear axle
DE2220199A1 (en) * 1971-04-27 1972-11-16 DENEB S A elettromco meccanica, Gandria (Schweiz) Seating furniture that can be folded out into a lounger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2103399A1 (en) * 1971-01-26 1972-08-31 Audi Nsu Auto Union Ag, 7107 Neckarsulm Motor vehicle rear axle
DE2220199A1 (en) * 1971-04-27 1972-11-16 DENEB S A elettromco meccanica, Gandria (Schweiz) Seating furniture that can be folded out into a lounger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547540A1 (en) * 1983-06-17 1984-12-21 Citroen Sa Vehicle carrier axle
FR2775935A1 (en) * 1998-03-11 1999-09-17 Peugeot Motor vehicle rear axle
US6672605B2 (en) 2000-12-22 2004-01-06 Mg Rover Group Limited Vehicle suspension systems

Also Published As

Publication number Publication date
DE2424649C2 (en) 1984-09-06

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8120 Willingness to grant licences paragraph 23
8125 Change of the main classification

Ipc: B60G 3/14

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AUDI AG, 8070 INGOLSTADT, DE

8339 Ceased/non-payment of the annual fee