CN101583508B - Flexible axle with rigid non-deformable crossbar - Google Patents
Flexible axle with rigid non-deformable crossbar Download PDFInfo
- Publication number
- CN101583508B CN101583508B CN2007800497760A CN200780049776A CN101583508B CN 101583508 B CN101583508 B CN 101583508B CN 2007800497760 A CN2007800497760 A CN 2007800497760A CN 200780049776 A CN200780049776 A CN 200780049776A CN 101583508 B CN101583508 B CN 101583508B
- Authority
- CN
- China
- Prior art keywords
- cross member
- back axle
- vehicle
- arm
- flexible back
- 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 - Fee Related
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/20—Semi-rigid axle suspensions
- B60G2200/21—Trailing arms connected by a torsional beam, i.e. twist-beam axles
-
- 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
- B60G2204/14—Mounting of suspension arms
- B60G2204/143—Mounting of suspension arms on the vehicle body or chassis
- B60G2204/1434—Mounting of suspension arms on the vehicle body or chassis in twist-beam axles arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a rear flexible axle for an automotive vehicle including at least two longitudinal oscillating arms (1, 2), each arm being connected to a wheel holder (3, 4) at its end oriented towards the rear of the vehicle while the other front end is connected to the frame of the vehicle through an elastic bearing (7, 8) and said arms being connected by a crossbar (11), characterised in that: the ends of the crossbar are rotatingly mounted on the arms to allow for the rotation of the arms relative to the crossbar about the crossbar axis; and the longitudinal arms each include, on the side of their end supporting the wheel holder, a guiding bar (12, 13) connecting said arm end to the crossbar, each guiding bar being rigidly to the longitudinal arm and rotatingly mounted on the crossbar.
Description
Technical field
The present invention relates to a kind of flexible axle that has the non deformable cross member of rigidity.
Background technology
Existing flexible back axle generally includes two longitudinal oscillation arms, wheel steering joint of each comfortable one end thereof upper support of these swing arms, and on its another end, link to each other with the car body of vehicle.The elastic vibration clamper that rests on these arms is flexibly supporting car body, and the end of anti-inclination cross bar by these two arms of elastically deformable is connected on these two arms rigidly in reversing.
Under the situation of inclination, revolver steering swivel and right the wheel between the steering swivel at vehicle can be seen diff-H, this diff-H is reflected among the specific rotation of two vertical arms with respect to carbody, and this specific rotation is transformed into reversing of the cross member that connects these two arms.Therefore this cross member has guaranteed the radical function on the left and right wheels plane of guiding vehicle bridge.
This cross member also is designed for hanging function usually.Exactly, it must stand vertical power and transverse force, and therefore has certain rigid in bending.Main difficulty is in stress level rigidity gradual between these vertical arms of design and the cross member, described stress level be connected between these parts different elements particularly weld seam can stand.
Because these different stress, steel-particularly THLE steel (steel with very high yield strength) becomes the requisite material that is used to make up cross member, and aluminium and lightweight material then can not use.
A kind of scheme of current research is two kinds of functions that cross member is born are separated, so that all give the bigger service area that is not subjected to limit each other for every kind of function, and allows to use lightweight material.Notably be, carrying out multiple trial, have big anti-roll rate simultaneously, greater than 100mdaN/ ° so that produce the vehicle bridge that in mutual fatigue, can stand greater than the inclination of 100mm.
A solution is to produce does not a kind ofly have torsional stress, be the cross member of rigidity in reversing, vertically arm can rest on this cross member, anti-roll function is then provided by an additional anti-roll bar.
Known vehicle bridge with out-of-run cross member in reversing.
Therefore, document FR 2 481 198 has illustrated a kind of vehicle bridge, and this vehicle bridge comprises a cross member, and the end of this cross member is installed in the sleeve pipe, and described sleeve pipe is made by the elastomeric material that is contained in vertical arm.So cross member is absorbed by these sleeve pipes around the swing of its axis.Yet the sleeve pipe of these elastomeric materials has deformability, and this is unfavorable for keeping the necessary local stiffness of geometric configuration of vertical arm under stress.
Document EP 0 122 891 has illustrated a kind of vehicle bridge, and wherein cross member is attached on each vertical arm by the sleeve pipe of being made by elastomeric material, and antifriction-bearing box prevents that cross member from centering on one and rotating with respect to this arm with the axis of the axis normal of this cross member.
Yet such vehicle bridge has the identical shortcoming of vehicle bridge with explanation in document FR 2 481 198.In these two kinds of examples, there is not geometry deformation just can not be transmitted from the load of these wheels, it is inconsistent that the guiding of these geometry deformations and existing vehicle requires.
Summary of the invention
The objective of the invention is to alleviate these shortcomings by proposing a kind of flexible back axle, this flexible back axle has non deformable cross member, and the guiding to wheel is provided.
Therefore, theme of the present invention is a kind of flexible back axle that is used for power actuated vehicle, this flexible back axle comprises two longitudinal oscillation arms, each arm all is connected with a wheel stand at the place, end that it points to vehicle rear, and its another be positioned at anterior place, end and be connected with the car body of vehicle by elastic bearing, described two arms link to each other by cross member, it is characterized in that:
The end of-this cross member is installed in rotation on the described arm, rotates with respect to this cross member around the axis of this cross member to allow these upper-arm circumferences,
-these vertical arms all comprise the pilot bar that the described end with this arm is connected with this cross member in the end of its supporting wheel support one side, and each pilot bar all is attached on this vertical arm rigidly and is pivotally mounted on this cross member.
Configuration according to vehicle bridge of the present invention makes it to make cross member to avoid any tersional stress, the pilot bar of transmission vertical load and the load on their axial directions makes it to improve the guiding to wheel, keeps the rigidity of the vertical curve of this vehicle bridge simultaneously.
Advantageously, each pilot bar is connected with this cross member by an adjustable for height articulated section, this hinged preferably detouchable.
Therefore might regulate the height of these articulated sections, particularly they are with respect to the height of each articulated section height of vertical arm to the car body of vehicle, and this makes it to limit the load diagram of vehicle bridge when inclination.Therefore might adjust this load diagram according to the vehicle that vehicle bridge is used for wherein.Therefore, vehicle bridge according to the present invention can be used for different vehicles, this be different from prior art vehicle bridge-they are necessary for concrete vehicle and design specially.
Advantageously, this cross member each articulated section on the vertical arm of correspondence all is equipped with a limiting device, thereby prevents that this cross member from moving on its axial direction.Therefore this cross member transmits transverse load.
Preferably, cross member and/or pilot bar are made by lightweight material, preferred aluminium or any other suitable material.
The special permission of the configuration of vehicle bridge is used for such parts with this class material, and described parts bear little stress, particularly do not bear torsion.
In a kind of specific embodiments, vehicle bridge comprises stabilizer rod, and this stabilizer rod is connected on the car body of vehicle and is connected on this cross member, centers on the rotation and/or the distortion of the axis of this cross member to prevent cross member.
This bar is used for especially according to some vehicle bridge of the present invention, causes a moment My for their pendulum spring of stand under load, the rotational that this moment is tended to that vehicle bridge is centered on and traversed vehicle.
Advantageously, the two ends of stabilizer rod are positioned near the hinge-point of vertical arm to the car body of vehicle, and are on the axis that connects these hinge-points, and these ends are hinged on this car body.
Advantageously, this stabilizer rod is connected with this cross member by at least two anchor bearings.
Preferably, this stabilizer rod is connected with this cross member by three anchor bearings, and these anchor bearings are at the longitudinal direction upper offset of vehicle.
Preferably, this vehicle bridge has along the vertical summetry plane of the longitudinal direction of vehicle.
Description of drawings
Referring now to description of drawings the present invention of indefiniteness,, in the accompanying drawings:
-Fig. 1 is the indicative icon according to flexible back axle of the present invention.
The specific embodiment
In the drawings, direction X, Y, Z correspond respectively to vertical, the horizontal and vertical direction of the vehicle that vehicle bridge is installed, and axis X is pointed to the rear portion of vehicle.The vertical and horizontal direction of mentioning in this article is with reference to these directions.
Fig. 1 illustrates one according to flexible axle of the present invention, and this vehicle bridge comprises left and right two longitudinal oscillation arms 1 and 2.This vehicle bridge has the vertical summetry plane along the longitudinal direction of vehicle, with good proportion distribution that is used for load and the symmetry of operating.
For example, each arm is a hollow body, and this hollow body is a rigidity reversing on the meaning.
Each arm 1,2 supports the support 3,4 of a wheel 5,6 separately at its place, end that points to vehicle rear.Other, the leading section of each arm are connected on the car body of this vehicle by an elastic bearing 7,8 respectively.
Each arm 1,2 also has a support 9,10 (steering swivel), and described support is used to admit the pendulum spring (not shown).Each support 9,10 is positioned on the rear side of corresponding vertically arm.
These arms 1,2 link together by a cross member 11, and the two ends of this cross member are installed in rotation on the described arm by articulated section 20,21.Each articulated section all is equipped with a limiting device (not shown), to prevent the horizontal direction superior displacement of this cross member at vehicle.
Described articulated section 20,21 allows the rotational of each vertical upper-arm circumference around this cross member, avoids cross member to rotate thus and/or distortion.So cross member no longer needs to be designed to deformable, thus can by light material for example hollow the or solid of aluminum constitute.
Each vertical arm 1,2 comprises that in end one side of the support 3,4 of its supporting wheel the described end that is used for arm is connected to the pilot bar 12,13 on the cross member.
An end of each pilot bar 12,13 is attached on the vertical arm rigidly, and another end preferably is pivotally mounted on this cross member around a basic horizontal and with the axis of the axis normal of corresponding pilot bar.
According to operational space, described pilot bar directly is attached on each arm backward on vertical arm as far as possible far or is attached on the element that is anchored on this arm, for example on the pendulum spring support.
The articulated section 22,23 of the pilot bar 12,13 on the cross member is positioned near the mid-plane of this cross member for itself, and is in the side that pilot bar wherein is attached to vertical arm.
The height of articulated section 22,23 can be adjusted, and this makes it to adjust their positions with respect to the articulated section on the carbody 7,8, and regulates the geometric configuration, particularly its geometric configuration when inclination of vehicle bridge thus for different vehicle type.
The position of articulated section 20,21 between cross member and vertical arm only has very side effect, and this makes and the design of arm can be combined better with the geometric configuration of wheel stand, shock absorber and spring.
Articulated section 22,23 can be designed to detouchable, so that installation and adjustment are easier.
This vehicle bridge also comprises a stabilizer rod 14, and this stabilizer rod is connected on the car body of vehicle and is connected on this cross member, rotates and/or distortion around the axis of pitch of vehicle so that prevent this cross member.This bar is preferably made by the THLE steel.
The end 15,16 of stabilizer rod 14 is positioned at wherein vertical arm and is connected near the hinge-point 7,8 on the carbody and is on the axis A1 of these articulated sections, and described end 15,16 is hingedly connected on the car body.
In this example, stabilizer rod 14 has three anchor bearings 17,18,19 on cross member, and these anchor bearings are along the longitudinal direction biasing (staggering) of vehicle.
In these three bearings, two bearings 17,18 of end are positioned at identical height in a longitudinal direction, and middle bearing 19 is at this longitudinal direction upper offset.Shown in example in, middle bearing 19 further is offset towards the rear portion of vehicle with respect to bearing at end 17,18.In addition, these three bearings are placed with respect to the longitudinal plane symmetry of vehicle.
Certainly, two bearings also can only be set rotates and/or distortion to prevent cross member.
When pendulum spring is placed into when producing weak moment My,, can save stabilizer rod 14 if when perhaps in addition vehicle bridge being constructed so that articulated section 20,22,23 and 21 align substantially.
In the situation of inclination, will bear around the rotation of the axis that articulated section 7,22 is connected to left arm 1 and around the rotation that articulated section 8,23 is connected to the axis of right arm 2 according to vehicle bridge of the present invention.
As an example, for the vertical arm of 440mm long (effective length between the point of connection on the car body and the axis of wheel stand) and the rear portion track of 1450mm, the inclination that the inclination of 100mm-be equivalent to is 4 °-will between each arm and cross member, cause 7 ° rotation.
Claims (11)
1. the flexible back axle that is used for power actuated vehicle, comprise two longitudinal oscillation arms (1,2), each longitudinal oscillation arm is all at the place, end and wheel stand (3 of the sensing vehicle rear of this longitudinal oscillation arm, 4) link to each other, and link to each other with the car body of this vehicle by elastic bearing (7,8) at the anterior place, the other end of being positioned at of this longitudinal oscillation arm, these two longitudinal oscillation arms are connected by cross member (11), it is characterized in that:
The end of-this cross member is installed on these two longitudinal oscillation arms rotationally, rotates with respect to this cross member around the axis of this cross member to allow described longitudinal oscillation upper-arm circumference,
-described longitudinal oscillation arm all comprises a pilot bar (12 in the end of its supporting wheel support one side, 13), this pilot bar is connected on this cross member the end of the described supporting wheel support of this longitudinal oscillation arm, and each pilot bar all is attached on the longitudinal oscillation arm rigidly and is installed on the cross member rotationally.
2. flexible back axle as claimed in claim 1 is characterized in that, each pilot bar (12,13) all links to each other with this cross member by means of adjustable for height articulated section (22,23).
3. flexible back axle as claimed in claim 2 is characterized in that, described adjustable for height articulated section is a detouchable.
4. flexible back axle as claimed in claim 1 or 2 is characterized in that, makes cross member all be equipped with limiting device with the articulated section (20,21) that corresponding longitudinal oscillation arm links to each other, and this limiting device prevents that this cross member from axial direction moving.
5. flexible back axle as claimed in claim 1 or 2 is characterized in that, described cross member (11) and/or pilot bar (12,13) are made by lightweight material.
6. flexible back axle as claimed in claim 5 is characterized in that, described lightweight material is an aluminium.
7. flexible back axle as claimed in claim 1 or 2 is characterized in that, this back axle comprises stabilizer rod (14), and this stabilizer rod is connected on the car body of vehicle, and is connected on this cross member, to prevent rotational and/or the distortion of this cross member around cross member.
8. flexible back axle as claimed in claim 7 is characterized in that, the end of described stabilizer rod (15,16) are positioned near the described elastic bearing (7,8), and is on the axis (A1) that connects described elastic bearing, and described end is hinged on this car body.
9. flexible back axle as claimed in claim 7 is characterized in that, this stabilizer rod (14) is connected with this cross member (11) by means of at least two anchor bearings.
10. flexible back axle as claimed in claim 9 is characterized in that, this stabilizer rod (14) is connected with this cross member (11) by means of three anchor bearings (17,18,19), and these anchor bearings are along the longitudinal direction biasing of vehicle.
11. flexible back axle as claimed in claim 1 or 2 is characterized in that, this back axle has the vertical summetry plane along the longitudinal direction of vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0610768A FR2909592B1 (en) | 2006-12-11 | 2006-12-11 | SOFT AXLE WITH RIGID NON-DEFORMABLE CROSSBAR. |
| FR0610768 | 2006-12-11 | ||
| PCT/EP2007/062972 WO2008071551A1 (en) | 2006-12-11 | 2007-11-29 | Flexible axle with rigid non-deformable crossbar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101583508A CN101583508A (en) | 2009-11-18 |
| CN101583508B true CN101583508B (en) | 2011-07-13 |
Family
ID=38248909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800497760A Expired - Fee Related CN101583508B (en) | 2006-12-11 | 2007-11-29 | Flexible axle with rigid non-deformable crossbar |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101583508B (en) |
| FR (1) | FR2909592B1 (en) |
| WO (1) | WO2008071551A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2967092A1 (en) * | 2010-11-05 | 2012-05-11 | Renault Sa | FLEXIBLE AXLE FOR AUTOMOTIVE VEHICLE IN PART GLUE. |
| CN110027615A (en) * | 2019-05-20 | 2019-07-19 | 深圳市汇力堡汽车文化传播有限公司 | A kind of adjustable vehicle bridge of mechanical performance, chassis and automobile |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1480441A1 (en) * | 1964-10-31 | 1969-08-07 | Volkswagenwerk Ag | Pendulum axle for motor vehicles |
| DE2249006A1 (en) * | 1970-05-02 | 1974-04-18 | Volkswagenwerk Ag | REAR AXLE FOR MOTOR VEHICLES |
| DE3001530A1 (en) * | 1980-01-17 | 1981-07-23 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Rear axle suspension using transverse torsion bar - has laterally inclined members rigidly fixed to bar and longitudinal members pivoted to bar |
| US4434998A (en) * | 1980-04-26 | 1984-03-06 | General Motors Corporation | Rear axle for vehicles especially motor vehicles |
| EP0122891A1 (en) * | 1983-04-18 | 1984-10-24 | FIAT AUTO S.p.A. | Improvements in motor vehicle suspensions |
| DE3828828A1 (en) * | 1987-09-03 | 1989-03-23 | Volkswagen Ag | Motor vehicle rear axle |
| DE4110571A1 (en) * | 1990-05-30 | 1991-12-05 | Volkswagen Ag | Cross-member rear axle for vehicle - incorporates parallel stabilising brace beam |
| EP0695656A2 (en) * | 1994-08-05 | 1996-02-07 | Mercedes-Benz Ag | Rear axle for a motor vehicle |
| DE19631975A1 (en) * | 1995-08-18 | 1997-02-20 | Volkswagen Ag | Motor vehicle axle which interconnects two longitudinal wheel supports |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5975811A (en) * | 1982-10-21 | 1984-04-28 | Fuji Heavy Ind Ltd | Rear wheel suspension unit for vehicle |
| FR2829428B1 (en) * | 2001-09-07 | 2003-12-19 | Peugeot Citroen Automobiles Sa | PERFECTED REAR AXLE FOR MOTOR VEHICLE OF THE TYPE WITH LONGITUDINAL DRAWN ARMS WITH MAINTENANCE OR TRANSVERSE GUIDE BARS |
| FR2875175B1 (en) * | 2004-09-10 | 2006-12-22 | Auto Chassis Internat Snc Snc | FLEXIBLE AXLE FOR A MOTOR VEHICLE EQUIPPED WITH MEANS FOR TRANSFERRING TRANSVERSE EFFECTS EXERCISING ON LONGITUDINAL ARMS AND VEHICLE CORRESPONDING THERETO |
| FR2879508B1 (en) * | 2004-12-22 | 2009-12-18 | Michelin Soc Tech | SUSPENDED AXLE FOR VEHICLE |
-
2006
- 2006-12-11 FR FR0610768A patent/FR2909592B1/en not_active Expired - Fee Related
-
2007
- 2007-11-29 WO PCT/EP2007/062972 patent/WO2008071551A1/en active Application Filing
- 2007-11-29 CN CN2007800497760A patent/CN101583508B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1480441A1 (en) * | 1964-10-31 | 1969-08-07 | Volkswagenwerk Ag | Pendulum axle for motor vehicles |
| DE2249006A1 (en) * | 1970-05-02 | 1974-04-18 | Volkswagenwerk Ag | REAR AXLE FOR MOTOR VEHICLES |
| DE3001530A1 (en) * | 1980-01-17 | 1981-07-23 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Rear axle suspension using transverse torsion bar - has laterally inclined members rigidly fixed to bar and longitudinal members pivoted to bar |
| US4434998A (en) * | 1980-04-26 | 1984-03-06 | General Motors Corporation | Rear axle for vehicles especially motor vehicles |
| EP0122891A1 (en) * | 1983-04-18 | 1984-10-24 | FIAT AUTO S.p.A. | Improvements in motor vehicle suspensions |
| DE3828828A1 (en) * | 1987-09-03 | 1989-03-23 | Volkswagen Ag | Motor vehicle rear axle |
| DE4110571A1 (en) * | 1990-05-30 | 1991-12-05 | Volkswagen Ag | Cross-member rear axle for vehicle - incorporates parallel stabilising brace beam |
| EP0695656A2 (en) * | 1994-08-05 | 1996-02-07 | Mercedes-Benz Ag | Rear axle for a motor vehicle |
| DE19631975A1 (en) * | 1995-08-18 | 1997-02-20 | Volkswagen Ag | Motor vehicle axle which interconnects two longitudinal wheel supports |
Non-Patent Citations (1)
| Title |
|---|
| JP昭59-75811A 1984.04.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101583508A (en) | 2009-11-18 |
| WO2008071551A1 (en) | 2008-06-19 |
| FR2909592A1 (en) | 2008-06-13 |
| FR2909592B1 (en) | 2009-01-23 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20201129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |