EP2683563A1 - Patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile - Google Patents

Patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile

Info

Publication number
EP2683563A1
EP2683563A1 EP12702496.6A EP12702496A EP2683563A1 EP 2683563 A1 EP2683563 A1 EP 2683563A1 EP 12702496 A EP12702496 A EP 12702496A EP 2683563 A1 EP2683563 A1 EP 2683563A1
Authority
EP
European Patent Office
Prior art keywords
attachment point
section
spring carrier
spring
arm according
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Withdrawn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
EP12702496.6A
Other languages
German (de)
English (en)
Inventor
Paul Lenz
Peter HASELBERGER
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen 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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of EP2683563A1 publication Critical patent/EP2683563A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B60G11/16—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/26—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs
    • B60G11/28—Resilient suspensions characterised by arrangement, location or kind of springs having fluid springs only, e.g. hydropneumatic springs characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/15—Fluid spring
    • B60G2202/152—Pneumatic spring
    • B60G2202/1524—Pneumatic spring with two air springs per wheel, arranged before and after the wheel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/014—Constructional features of suspension elements, e.g. arms, dampers, springs with reinforcing nerves or branches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7102—Aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8101—Shaping by casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/14—Buses

Definitions

  • the invention relates to a spring carrier arm of a spring carrier of a motor vehicle axle, in particular a gantry axis, with a curved longitudinal section, a subsequent to the longitudinal section and transverse thereto transverse section and a flange portion, in particular for connection to a Radnabengetriebegeratiuse, wherein the transverse section at least one attachment point for the Connection to a shock absorber and / or receives a suspension.
  • the invention further relates to a motor vehicle axle in which the aforementioned spring carrier arms are used in the area of spring supports.
  • Spring carrier arms of spring carriers are used in motor vehicle axles for applying a connection of the respective motor vehicle axle to suspension and damping elements of the respective motor vehicle.
  • a spring carrier in this case has two spring carrier arms, via which in the vehicle longitudinal direction in front of and behind the wheels of the vehicle axle, a connection to the shock absorbers and air springs positioned there is made.
  • the respective spring carrier may in this case be composed of individual spring carrier arms, which engage an intermediate housing, for example a wheel hub housing, or else be made in one piece. In addition, one-piece designs are familiar with the intermediate housing.
  • the city traffic vehicle axles are also often designed as gantry axles, in which an axle differential is connected to each in the hubs wheeled hub gears.
  • an axle differential is connected to each in the hubs wheeled hub gears.
  • the respective spring carrier is often attached with its spring support arms either to the respective Radnabengetriebegeratiuse, or designed in one piece with this.
  • DE 1 00 28 278 B4 discloses a spring carrier of a gantry axle, which comprises one or more pieces and comprises two spring carrier arms. It has a Spring carrier arm over a curved longitudinal section, which is followed by a cross section extending transversely thereto. At one end of the longitudinal section facing away from the transverse section, there is also provided a flange section via which a connection to a housing accommodating the respective wheel gear of the wheel or in its area also a transition to the intermediate housing even with a one-piece design of the spring carrier.
  • the longitudinal portion, the transverse portion and the flange portion of a Federliniarms are each designed as a solid body.
  • a spring support arm has a curved longitudinal section, a transverse section adjoining the longitudinal section and extending transversely thereto, and a flange section.
  • the transverse section has at least one attachment point for connection to a shock absorber and / or to a suspension.
  • a curved course of the longitudinal section here means a curvature in the direction of the transverse section, but also an additional or alternative curvature in the orthogonal transverse direction of the spring carrier arm. With transverse straightening of the transverse section to the longitudinal section in this case a predominantly orthogonal course to the longitudinal direction of the spring carrier arm is meant.
  • the at least one attachment point of the transverse section is preferably represented by a bore for forming a screw connection with the shock absorber and / or the suspension.
  • Shock absorbers and suspension can be connected as a common assembly with only one attachment point, but also as separate components, each with an associated attachment point at the cross section. be coupled.
  • a shock absorber is meant in particular a hydraulic shock absorber.
  • suspension is in the context of the invention, in particular an air suspension of the motor vehicle into consideration.
  • the spring support arm is formed as a whole casting as a light metal alloy and has at least one ribbing.
  • Such an embodiment of the spring carrier arm has the advantage that the weight can be lowered considerably by the use of a light metal alloy, but by the provision of a corresponding ribbing in this case the resilience of a cast iron variant can be achieved.
  • a light metal alloy usually faster and cutting finishing of the respective spring carrier arm due to higher possible
  • Cutting speeds can be achieved.
  • the use of the material EN-AC-AISi7MgO, 3ST6 or even a comparable material is considered as a light metal alloy.
  • the longitudinal section is provided with a stiffening rib on a side surface facing away from the transverse section.
  • a rib extending between the flange section and the at least one attachment point and along the longitudinal section is provided on a lower side, which rib is formed in a hump-like manner at least in a region of the longitudinal section.
  • the transverse section in this case has a first and a second attachment point, the rib extending from the flange section over the first attachment point to the second attachment point.
  • the flange portion and at least partially the longitudinal portion are hollow.
  • the partial design as a hollow body material can be saved and the manufacturing cost and weight can be further reduced.
  • the cavity can be represented during the casting process by a cantilevered outer core or a slider, so that the manufacturing process is simplified accordingly.
  • the geometry of the spring carrier arm according to the invention in this case sand and Kokillengusstauglich.
  • attachment surfaces of the flange portion and / or the at least one attachment point are provided with a release agent.
  • a release agent By providing a suitable release agent in these areas, a direct contact between the spring support arm and the adjacent component can be avoided while a contact corrosion between the two connection partners are largely excluded. In this case, the use of common surface release is considered.
  • the at least one attachment point on a connecting element which is composed of above and below the transverse section placed elastomeric bodies, which are each arranged with a through hole coaxial with a bore of the at least one attachment point and thereby with an axially projecting Anformung in the bore mounting.
  • attachment surfaces of the at least one fastening point and of the flange section are finished cast or machined.
  • connection surfaces of the flange portion and the at least one attachment point are to be understood as surfaces which, when the spring carrier arm is connected to adjacent components, come into contact with the adjacent components or with connection means used in this case.
  • connection surfaces of the flange portion in this case in particular attachment points for attachment to an adjacent housing with corresponding screw head bearing surfaces or also connecting surfaces for cohesive bonding, for example welding, meant by the adjacent component.
  • Attachment surfaces of the at least one attachment point are to be understood as surfaces on which the transverse portion is in contact with an adjacent component and / or via which it is connected to the adjacent component.
  • Fig. 1 is a perspective view of a preferred embodiment of the spring carrier arm according to the invention.
  • FIG. 2 shows a further perspective view of the spring carrier arm according to the invention from FIG. 1;
  • Fig. 3 is a side view of the spring carrier arm according to the invention from Fig. 1;
  • Fig. 4 is a sectional view in the region of an attachment point and a connecting element of the spring carrier arm according to the invention.
  • FIG. 1 shows a perspective view of a preferred embodiment of the spring carrier arm according to the invention.
  • This is embodied in one piece as a casting made of EN-AC-AISi7MgO, 3ST6 and has a longitudinal section 1, a transverse section 2 extending transversely to the longitudinal section 1 and a flange section 3 which is provided at an end of the longitudinal section 1 facing away from the transverse section 2.
  • the longitudinal section 1 has a curvature oriented in the direction of the transverse section 2 and in the transverse direction orthogonal thereto.
  • the spring support arm in the region of the flange portion 3 and over part of the longitudinal section 1 is designed as a hollow body.
  • the transverse section 2 has a first attachment point 4 and a second attachment point 5, via which holes 6 and 7, respectively, provide a connection of the spring carrier arm according to the invention to a shock absorber and to an air suspension of a motor vehicle can take place.
  • this occurs in the region of a motor vehicle axle the first attachment point 4 a connection with an air suspension and the second attachment point 5 a connection to a shock absorber of the motor vehicle.
  • screw-on points 8 are provided on the flange section 3, via which the spring carrier arm according to the invention can be connected, in particular, to a wheel hub housing of a portal axle of the motor vehicle.
  • the longitudinal section 1 has a stiffening rib 9 oriented opposite to the transverse section 2, which is formed on a side surface of the longitudinal section 1.
  • the vibration behavior of the spring carrier arm can be improved via this stiffening rib 9.
  • this side surface bolting points 10 are also provided, via which a connection to a stabilizer of the motor vehicle can be produced.
  • the spring carrier arm according to the invention has a rib 1 1, which, in particular in FIG. 2 recognizable, on a bottom side starting from the
  • This rib 1 1 forms a bump 12 in the region of the longitudinal section 1, as shown in FIG. 3 can be seen.
  • a voltage-optimized geometry of the spring carrier arm according to the invention can be achieved, so that material can be saved in the connecting portion Flanschabschitt 3 towards the transverse section 2.
  • connecting surfaces 13 and 14 are machined in the area of the flange section 3 and connecting points 15 and 16 of the fastening points 4 and 5 are finished cast. Also a connection surface 17 in the side region of the
  • connection surfaces 13 to 17 As a result, a sufficient surface finish is achieved in the individual connection surfaces 13 to 17 in order to ensure optimum contact of the adjacent component or support of connecting elements, such as screws. Furthermore, due to the only partially necessary post-processing of the designated areas, the production costs can be kept low. Away from the connection surfaces 13 to 17, the surfaces of the spring support arm are also designed to be skewed, so that in These areas can accumulate no liquid and can provide appropriate corrosion.
  • the flange section 3 in the region of the attachment surfaces 13 and the first attachment point 4 in the region of the attachment surfaces 15 are each provided with a release means (not shown here) by which a direct contact of the spring carrier arm with the component adjacent in the installed state is prevented. Accordingly, contact corrosion occurring in these areas can be avoided.
  • FIG. 4 shows a sectional view in the region of the second attachment point 5 of the transverse section 2.
  • a connecting element 19 is provided in the region of the second attachment point 5, which is composed of two elastomer bodies 20 and 21.
  • These elastomeric bodies 20 and 21 each have a through hole 22 and 23, with which they are respectively placed coaxially to the bore 7 of the second attachment point 5.
  • axially projecting projections 24 and 25 are formed on the elastomer bodies 20 and 21, with which the elastomer body 20 and 21 in the axial direction respectively in the bore 7 border.
  • the spring support arm according to the invention By means of the design of a spring carrier arm according to the invention, a significant reduction in weight can be achieved while retaining the same rigidity properties. Due to the design of the respective connection surfaces, the spring support arm according to the invention is also characterized by a low production cost. In addition, the risk of the formation of corrosion by the surface design and the design of the connection surfaces is reduced.

Landscapes

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

Abstract

L'invention concerne une patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile, en particulier d'un essieu portique, comprenant une section longitudinale (1) courbée, une section transversale (2) s'étendant dans le prolongement de la section longitudinale (1), en biais par rapport à celle-ci, et une section de bride (3), en particulier pour l'accouplement à un carter de réducteur de roue, la section transversale (2) comportant au moins un point de fixation (4, 5) pour l'accouplement à un amortisseur de chocs (18) et/ou à une suspension. L'invention se caractérise en ce que la patte de fixation de ressort se présente dans l'ensemble sous la forme d'une pièce moulée en alliage léger et présente au moins un nervurage. L'invention concerne en outre un essieu de véhicule automobile pour lequel des pattes de fixation de ressorts de ce type sont utilisées dans la région des supports de ressorts.
EP12702496.6A 2011-03-09 2012-02-01 Patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile Withdrawn EP2683563A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011005311A DE102011005311A1 (de) 2011-03-09 2011-03-09 Federträgerarm eines Federträgers einer Kraftfahrzeugachse
PCT/EP2012/051621 WO2012119816A1 (fr) 2011-03-09 2012-02-01 Patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile

Publications (1)

Publication Number Publication Date
EP2683563A1 true EP2683563A1 (fr) 2014-01-15

Family

ID=45563012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12702496.6A Withdrawn EP2683563A1 (fr) 2011-03-09 2012-02-01 Patte de fixation de ressort d'un support de ressort d'un essieu de véhicule automobile

Country Status (6)

Country Link
US (1) US20130328281A1 (fr)
EP (1) EP2683563A1 (fr)
KR (1) KR20140052967A (fr)
CN (1) CN103328236A (fr)
DE (1) DE102011005311A1 (fr)
WO (1) WO2012119816A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016005125A1 (fr) * 2014-07-07 2016-01-14 Zf Friedrichshafen Ag Bras de support élastique

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Publication number Priority date Publication date Assignee Title
DE102013212124A1 (de) * 2013-06-25 2015-01-08 Bayerische Motoren Werke Aktiengesellschaft Gußbauteil oder Schmiedebauteil mit einem erhabenen Höcker zur Aufnahme eines Befestigungsmittels
DE102016223374A1 (de) 2016-11-25 2018-05-30 Zf Friedrichshafen Ag Trägerarm für eine Fahrzeugachse sowie Fahrzeugachse mit dem Trägerarm
US20210023941A1 (en) 2019-07-26 2021-01-28 Super ATV, LLC One-piece portal wheel end mounting system
CN112078315B (zh) * 2020-09-24 2025-03-07 浙江方泰汽车配件有限公司 一种减震式汽车悬挂系统用三角控制臂
DE102021202987A1 (de) * 2021-03-26 2022-09-29 Zf Friedrichshafen Ag Portalachsanordnung und Kraftfahrzeug

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JPH0976714A (ja) * 1995-09-13 1997-03-25 Nissan Motor Co Ltd 車両用リヤサスペンション
DE19542522A1 (de) * 1995-11-15 1997-05-22 Opel Adam Ag Verbundlenker-Hinterachse
IT1288797B1 (it) * 1996-10-31 1998-09-24 Iveco Fiat Sospensione pneumatica per un assale di un autoveicolo.
JPH10324126A (ja) * 1997-05-26 1998-12-08 Isuzu Motors Ltd 車両用サスペンション装置
DE19840134A1 (de) * 1998-09-03 2000-03-09 Volkswagen Ag Verbundlenker-Hinterachse für ein Kraftfahrzeug
US6086162A (en) * 1998-12-14 2000-07-11 General Motors Corporation Motor vehicle rear axle and method
DE10028278B4 (de) 2000-06-07 2008-11-13 Zf Friedrichshafen Ag Portalachse
DE10064438B4 (de) * 2000-12-22 2014-10-16 Volkswagen Ag Verbundlenkerachse für Kraftfahrzeuge
DE10163628A1 (de) * 2001-12-21 2003-07-10 Zahnradfabrik Friedrichshafen Befestigung einer Achsbrücke
DE10355468A1 (de) * 2003-11-27 2005-07-14 Daimlerchrysler Ag Kraftfahrzeug
KR100579258B1 (ko) * 2003-12-30 2006-05-11 현대자동차주식회사 후륜 서스펜션 장치
DE102005038274C5 (de) * 2005-08-12 2018-01-11 Saf-Holland Gmbh Radaufhängungslenker
US7543842B1 (en) * 2008-02-22 2009-06-09 Raymond Fiorini Portable and adjustable trailer assembly and method of use thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016005125A1 (fr) * 2014-07-07 2016-01-14 Zf Friedrichshafen Ag Bras de support élastique

Also Published As

Publication number Publication date
WO2012119816A1 (fr) 2012-09-13
DE102011005311A1 (de) 2012-09-13
KR20140052967A (ko) 2014-05-07
US20130328281A1 (en) 2013-12-12
CN103328236A (zh) 2013-09-25

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