DE202008003758U1 - Axle arrangement with air suspension - Google Patents

Abstract

Axle arrangement for vehicles (1) with an axle body (7) and end axle attachments (8) and an air suspension (6) with at least one air spring element (24), wherein the air spring element (24) between the axle mountings (8) and arranged with Achskörper (7 ), the nested axle tubes (11, 12), characterized in that the air spring element (24) on the inner and outer axle tube (11, 12) is mounted and supported.

Description

The The invention relates to an axle assembly with an air suspension according to the Features in the preamble of the main claim.

Such axle assembly is from the US 6,921,098 B2 known for a semi-trailer. It shows air suspension bellows in the inner chassis area between the long inside rails and the vehicle wheels. The axle assembly consists of a long and over the vehicle width extending rigid support tube on the outside parallel two rotatable, short stub axles is mounted with an end-side Radschwinghebel. At these external stub axles a rod of the bellows is supported, wherein the housing is connected to the support tube.

The DE 197 33 968 A1 shows a crank axle for motor vehicles and trailers with an air suspension. The air bag is supported at the bottom of a connected to the Radschwinghebel by cross braces console. The console is connected via support arms with the axle body outside.

The DE 40 21 096 A1 discloses a crank axle for motor vehicles and trailers with air suspension. The air bellows is supported at the top on an upper bracket, which is fixed to a chassis-fixed cross member in the interior between the side rails. The lower console is connected via an arm with an inner tube of the axle.

In the axle assembly of US 3,822,908 A1 Bellows are arranged in the interior of the chassis between the longitudinal members and supported on a cross member at the top. They are loaded on the underside by arms that attack the axle. The support arms can be connected to the rotatable inner part of the axle, which carries at the end of the wheel swing lever.

The DE 86 19 274 U1 deals with a rubber spring axle. There is no air suspension.

In the DE 38 21 569 C2 is referred to a chassis and powertrain interference for poor driving distances, which regulates the air suspension in the level and the vibration damper characteristic is adjusted. The bellows are arranged between a body and a chassis of an air-suspension vehicle.

Another axle assembly is from the DE 298 22 564 U1 known. It is a trailing arm axle with an axle body and two end axle brackets for consolidation on the longitudinal members of a chassis of a motor vehicle. The air suspension has two air spring elements with bellows, which are arranged on the outside of the Achsböcke and between the longitudinal member and the vehicle wheel. The bellows are supported on the one hand on a projecting bracket of the Achsbocks and on the other hand on the Radschwinghebel.

It Object of the present invention, an improved axle assembly show with an air suspension.

The Invention solves this problem with the features in the main claim. The claimed axle assembly has the advantage that the air suspension more compact due to the internal arrangement of the air spring elements is formed and can make better use of the available space.

The Radschwinghebel and the vehicle wheel can be closer be arranged on the longitudinal members. The chassis widening is favorable for the driving stability. on the other hand The offers between the axle mounts or axle blocks Achsbereich more space for training and Arrangement of the air spring elements, in particular larger air bellows with a larger interior and a larger one Can have spring force.

at The axle arrangement is preferably the main axle load or spring load applied via the air suspension. The axle can be made of telescoping axle tubes with insert elements, in particular rubber straps, exist. The rubber cords can not or only in the nominal position of the chassis be curious. This allows their leadership and storage function for the inner tube in the surrounding outer tube in the foreground stand. A spring effect unfold the rubber cords if necessary only at a stronger compression of the axle assembly. The no or only very slightly biased rubber cords improve the suspension comfort of the axle assembly. On the other hand a reduction in the tendency to roll of the vehicle is in the foreground, the rubber cords may be slightly in nominal position be tense.

The air suspension can be supported on the axle body and needs no connection to the chassis or to the structure of the vehicle. The axle assembly is thus self-sufficient and can be designed and installed with the air suspension regardless of the type and construction of the chassis and the body. The axle arrangement can also be retrofitted to vehicles or retrofitted and replaced with existing other axles. The axle assembly is preferably designed as a trailing arm axle, but may alternatively be another Type, z. B. as Schräglenkerachse have. For the autarkic design of the axle assembly, it is advantageous to divide the outer axle tube in at least two, preferably three pipe parts and to arrange the air spring elements at the separation points. The axle-resistant carrier can be attached to the at the separation point with spaced outer tube parts and provides the relatively stationary support for the air bellows. The other relatively movable support can reach through the axle-fixed support in the distance or clearance between the outer tube parts and be connected at the separation point with the likewise divided inner tube or the local inner tube part. The inner tube part is in turn connected via the Radschwinghebel with the hub and the vehicle. During compression, the Radschwinghebel rotates the inner tube part and the form-fitting fastened thereto carrier, which is thereby moved relative to the axle-fixed support and biases the pneumatic bellows. One or more stops may limit the relative rotational movement between the carriers during compression and / or rebounding.

The Air suspension may include one or more air spring elements. Preferably, at least air spring elements are available for in each case a vehicle wheel and an inner tube part responsible are. The vehicle wheels can be separated spring in and out of each other. The air spring elements can be designed and adjusted so that the air suspension the Main suspension represents. In particular, wearing in nominal position the air suspension for the most part the wheel load and the suspension load.

The Air spring elements can build very compact, with the design and pipe support of interlocking Carrier is particularly favorable. Also turn restrictors can be implemented simply and with little effort become. The construction costs and costs can be kept low become.

The Air suspension can be adjusted manually or remotely and is particularly applicable to different vehicle loads to adjust. It can also have a regulation and the chassis in a given nominal position or a nominal level. The Air supply can be designed accordingly and a compressor and / or a compressed air storage. In addition, an automatic control in conjunction be present with a measuring device, with the chassis position is recorded. The measuring device can do this one correspondingly have suitable sensors. She also can be connected to an ad that the driver or operator signals the chassis position and a setting or control allows. This can be for the left and right side and for each air spring element one own ad exist.

In a particularly simple and inexpensive design can a manual control be present, the z. B. one or more Ball valves for adjusting the amount of air and pressure in the bellows. The air supply can do this also in a cheaper and easier way than after externally guided compressed air connection in the Art be formed of a tire valve. The air suspension can be like this be designed that the required air pressure in the level moved by tire pressures and thus refilling at gas stations or the like. With the usual air pressure equipment allowed.

The Achsanordnung may also have a stabilizer, to improve the inner tube guidance and ride comfort serves. Furthermore, the air supply with compressor and / or compressed air storage and the automatic control of the axle body be arranged and supported and also need no additional connection or support on the chassis or at the construction. For ergonomic reasons, it can be beneficial be the one or more ads and a manual control and possibly a compressed air connection to one of amen easily accessible Job, in particular to the drawbar of a trailer chassis to lay. These components can become a structural unit be summarized, where for the left and right side of the vehicle in each case one unit is available. The part-selective adjustment option for the air suspension allows compensation of differently distributed Vehicle or payloads and a facility of the chassis position in the desired height and orientation. alternative is a single-circuit air spring system possible.

The claimed axle assembly has the advantage of a particularly cost-effective and compact design. The force is introduced only via the Achsbefestigungen or Achsböcke in the chassis, what for the independence of the axle assembly from the chassis and the structure is particularly favorable. The air suspension offers excellent suspension comfort and allows adjustment the desired spring behavior, the chassis level and the chassis orientation. The air suspension can over the stops also have runflat features, so that in the axle assembly even with a Luftbalgausfall sufficient Driving stability exists and the chassis at a sag is prevented.

With the aforementioned measures, the axle assembly with the air suspension can be built particularly cost-effective, thereby offering an economical alternative to conventional axle Constructions with a pure torsion bar or rubber suspension. Compared with known axles with air suspension, the spring action and the suspension comfort are significantly increased.

The Axle arrangement can be designed as a single axis or tandem axle be. It can be used on any vehicle, these being especially trailers or motor vehicles can. The axle assembly also builds very flat and does not claim significantly more height than a conventional one Rubber spring or torsion bar axle, what for lowered and retrofitted chassis on motor vehicles especially is cheap.

In The dependent claims are further advantageous embodiments of the invention.

The The invention is for example and schematically in the drawings shown. In detail show:

1 FIG. 2: a top view of a vehicle with an axle arrangement and an air suspension, FIG.

2 and 3 different perspective views of the axle assembly and the air suspension,

4 a perspective view of the axle assembly without bellows,

5 : a bottom view of the axle assembly and the air suspension,

6 and 7 : various perspective views of a movable support of air spring elements,

8th and 9 various perspective views of inner tube parts with Radschwinghebel and hub and insert elements,

10 : A side view of the axle assembly according to arrow X of 1 and

11 and 12 : Perspective view of the inner tube parts with a connecting stabilizer.

The invention relates to an axle assembly ( 5 ) for vehicles ( 1 ) with air suspension ( 6 ).

The vehicles ( 1 ) can be of any type and size. You can choose one or more axis arrangements ( 5 ) exhibit. In 1 a vehicle in the form of a trailer is shown. Alternatively, it may be a motor vehicle, in particular a motor vehicle with a lowered and possibly retrofitted chassis, z. B. according to the DE 298 22 564 U1 ,

The vehicle ( 1 ) has a chassis ( 2 ), which at least two spaced parallel longitudinal members ( 4 ), in which the axle arrangement ( 5 ) by means of end axle attachments ( 8th ) is mounted. The axle attachments ( 8th ) can z. B. Axles, the side of the side members ( 4 ), wherein the longitudinal members ( 4 ) may have a recess for the axis at the attachment point. Alternatively, an attachment from below to the side rails ( 4 ) or another type of attachment possible, for. B. in commercial vehicle trailers.

This in 1 shown trailer chassis may have on the front of a rigid drawbar in the form of a V-drawbar or a pipe drawbar having at the front end a trailer hitch and possibly a overrun brake system and a hand brake device which is connected to the wheel brakes / are. In 1 is also a superstructure on the chassis ( 2 ), which can be of any type and size.

The axle arrangement ( 5 ) and the air suspension ( 6 ) can be controlled via the outside axle brackets ( 8th ) only with the chassis ( 2 ) and its longitudinal members ( 4 ) and supported there. You do not need to have any connection with other chassis parts or with the bodywork. The illustrated axle arrangement ( 5 ) with the air suspension ( 6 ) can be exchanged for other conventional axles or replaced with conventional chassis ( 2 ).

The air suspension ( 6 ) has one or more air spring elements ( 24 ) on. Preferably, two or more air spring elements ( 24 ), which cooperate with one vehicle wheel. The air spring elements ( 24 ) are between the axle mounts ( 8th ), z. B. center symmetrical, and the axle body ( 7 ) of the axle arrangement ( 5 ) stored and supported.

The axle body ( 7 ) has on the outside two straight Radschwinghebel ( 9 ) with hubs ( 10 ) for the vehicle wheels. At the hubs ( 10 ), the wheel brakes, z. As the drum brakes shown in the drawings, be arranged.

The axle body ( 7 ) is formed in several parts and has an outer axle tube ( 11 ) and an inner axle tube arranged therein ( 12 ) on. The axle tubes ( 11 . 12 ) may have a usual for rubber spring or torsion bar axes cross section. The outer tube ( 11 ) may have a substantially hexagonal uniform cross section with rounded corners, wherein the inner tube ( 12 ) has a substantially star-shaped contour with z. B. three Ar men and rounded projections. Alternatively, the outer tube ( 11 ) another cross-sectional shape, for. B. as a square tube, wherein the inner tube ( 12 ) adjusted accordingly and z. B. is formed four-armed.

The inner tube ( 12 ) can by this cross-sectional shape grooves ( 14 ) between the projections or arms, each having an insert element ( 13 ), which with its outside on the outer tube ( 11 ) is present. The insert elements ( 13 ) can z. B. rubber cords and together form a string package. Alternatively, it can be torsion bars or other rod-shaped spring elements which are located between the grooves (FIG. 14 ) and the opposite flat side of the outer tube ( 11 ) are clamped.

The inner tube ( 12 ) is with the Radschwinghebeln ( 9 ) and rotates during compression and rebound of the vehicle wheel in the outer tube ( 11 ), wherein the insert elements ( 13 ) provide a circumferential guidance and possibly resiliently stressed and subjected to shear.

The inner tube ( 12 ) is preferably centrally divided in length, whereby two inner tube parts ( 17 . 18 ) are formed, which are separated from each other in the middle axis and possibly something complained of. Each inner pipe part ( 17 . 18 ) has its own insert elements ( 13 ), with which it in the outer tube ( 11 ) is guided and supported. On the outside, the inner tube parts protrude ( 17 . 18 ) from the outer tube ( 11 ) and are each equipped with a wheel swing lever ( 9 ) connected. This may be a positive connection by means of a form console, wherein the Radschwinghebel ( 9 ) one of the outer contour of the inner tube part ( 17 . 18 ) has corresponding plug-in opening and can be fastened with terminal closure or shrink fit if necessary.

The wheel bearing and the pipe layout can be made so that the nominal or nominal height of the chassis above the ground, the insert elements ( 13 ) not or only slightly compared to the chassis-fixed outer tube ( 11 ) are braced. Only during compression of the vehicle wheel and a corresponding rotation of the inner tube part ( 17 . 18 ) finds a tension of the arranged to a package insert elements ( 13 ) instead of. This results in a flat innerspring line and a soft and comfortable suspension. If the suspension comfort in favor of a better roll stability of the vehicle ( 1 ) can be reduced, the axle design and installation position can be made so that in the nominal position of the chassis, the insert elements ( 13 ) are somewhat biased, whereby the innerspring line becomes steeper. In the nominal position, the vehicle ( 1 ) be loaded with a nominal weight.

The air suspension ( 6 ) is designed to be in the nominal position of the chassis ( 2 ) for the most part, possibly 100%, the wheel load or the suspension load carries and the insert elements ( 13 ) relieved accordingly.

The air spring elements ( 24 ) consist of two relatively movable supports ( 26 . 27 ) between which an air bubble ( 25 ) is arranged and clamped, in which a prestressed air cushion is located. By a rotating mutual relative movement of the carrier ( 26 . 27 ) are used in the compression and rebound of the vehicle wheels of the pneumatic bellows ( 25 ) and its air cushion more or less tense and develop a corresponding spring action. The air bellows ( 25 ) closes airtight with the straps ( 26 . 27 ) and can with a subsequently explained air supply ( 37 . 38 ). If required, the air volume and the air pressure can be increased or reduced and the spring action can be changed accordingly.

The one axle-resistant carrier ( 26 ) is with the outer tube ( 11 ) and thus has a relatively stationary position. The other carrier ( 27 ) is connected to the inner tube ( 12 ) or the associated inner tube part ( 17 . 18 ) in a suitable manner, for. B. positively and rotatably connected. During compression of the vehicle wheel and a Innenrohrdrehung rotates the carrier ( 27 ) and loaded or relieved by its change in distance relative to the axle-fixed carrier ( 26 ) the air bellows ( 25 ) and the enclosed air cushion.

To connect the other carriers ( 27 ) with the inner tube parts ( 17 . 18 ), the outer tube ( 11 ) in its length in several pipe parts, for. B. two or three pipe parts ( 19 . 20 . 21 ), wherein the pipe parts ( 19 . 20 . 21 ) at the separation point (s) ( 22 ) an axial distance ( 23 ) to one another and through the free space formed thereby the passage of the carrier ( 27 ) at the separation point ( 22 ) to its inner tube part ( 17 . 18 ) enable. The axle-resistant carrier ( 26 ) is in the range of the respective separation point ( 22 ) relatively stationary on the outer axle tube ( 11 ) arranged. He is doing at the two adjacent pipe parts ( 19 . 21 ) respectively. ( 20 . 21 ) rotatably mounted. In the embodiment shown, the middle tube part ( 21 ) for supporting and stabilizing the axle body ( 7 ). It may alternatively be omitted or replaced by another connection structure.

The axle-resistant carrier ( 26 ) is positively connected to the edge-side outer tube parts ( 19 . 20 ) and the middle or inside outer tube part ( 21 ) positively connected. The carrier ( 26 ) can be in 2 and 4 clarified embodiment in the form of a hollow support housing ( 33 ) to have. This consists of a hollow Ge housing part, on whose side walls ( 34 ) Openings for the positive reception of the outer tube parts ( 19 . 20 . 21 ) are arranged. On the bottom ( 35 ), this housing part has a slot-like opening ( 36 ) with the distance or clearance ( 23 ) between the pipe parts ( 19 . 20 . 21 ) and through which the other movable support ( 27 ) and to its inner tube part ( 17 . 18 ) can get. At the slot walls, a lateral guide for the other carrier ( 27 ) consist. The carrying case ( 33 ) also has a plate-shaped projection ( 29 ) for receiving and supporting the bellows ( 25 ), which at the bottom by an extension of the side wall ( 34 ) receives a stable U-shape. The support plate ( 29 ) is in the longitudinal direction of the vehicle ( 1 ) from the outer tube ( 11 ) spaced.

6 and 7 illustrate the training of the other mobile carrier ( 27 ). This has an angled support arm ( 28 ), which at one end a flat support plate ( 29 ) carrying the thrust bearing for the pneumatic bellows ( 25 ). At the other end, a console ( 30 ), which one to the outer contour of the inner tube part ( 17 . 18 ) forms a form-fitting adapted cuff. Due to the non-rotationally symmetric contour, rotation is achieved. The console or cuff ( 30 ) can with sliding fit on the inner tube part ( 17 . 18 ), wherein during assembly the end position via a fixation ( 31 ), z. B. a clamping screw or the like. Can be formed. The flat and substantially upright aligned support arm ( 28 ) may be stiffened by transverse ribs. In addition, at the bottom of the support arm ( 28 ) an approach with an angled stop ( 32 ) can be arranged. The attack ( 32 ) can with the bottom ( 35 ) of the axle-fixed carrier ( 26 ) and provide for a relative rotation angle limitation during rebound of the vehicle wheel.

The air spring element ( 24 ) can also be a stop, not shown, for limiting the relative rotational movement and approach of the carrier ( 26 . 27 ) during compression. For this purpose, in the interior of the air bellows ( 25 ) z. B. a rod guide and rubber blocks may be arranged, which collide at the end of the permissible angle of rotation.

The axle arrangement ( 5 ), a measuring device ( 41 ) for detecting the position of the chassis ( 2 ), in particular the altitude or the level, have. The measuring device ( 41 ) may be formed in any suitable manner. It can have one or more measuring elements, in particular sensors. Here, each air spring element ( 24 ) be assigned its own sensors, as this 1 illustrated schematically. The sensors can z. B. distance sensors or displacement sensors, which the relative movement or the distance between the carriers ( 26 . 27 ) take up. The measuring device ( 41 ) is preferably on Achskörper ( 7 ) arranged and fixed.

Furthermore, one or more advertisements ( 42 ) present with the measuring device ( 41 ) and display the measured values for the chassis position. Here, the values for the left and right side of the vehicle can be displayed separately, via a combo display or via separate displays ( 42 ) is possible. About the ad ( 42 ), other information, such. B. on the air pressure in the bellows ( 25 ) or the like. Signaled in conjunction with corresponding measuring devices.

The air suspension ( 6 ) one or more air supplies ( 37 . 38 ), which may also be designed differently. Furthermore, the air suspension ( 6 ) a manual control ( 39 ) and / or automatic control ( 40 ).

An air supply ( 37 ) can z. B. be designed as a compressor and / or compressed air storage and is preferably on Achskörper ( 7 ) arranged and fixed. The compressor ( 37 ) has a suitable power supply, the z. B. to the power supply of the vehicle ( 1 ) coupled or alternatively may be self-sufficient. The in the compressor ( 37 ) located air pump can, for. B. an electric motor, from a battery or from the power supply of the vehicle ( 1 ) can be fed. The compressor ( 37 ) is suitably connected to the two air spring elements ( 24 ) and their bellows ( 25 ) connected via lines and can the bellows ( 25 ) supply compressed air separately from each other. The compressor ( 37 ) can suck in air from the environment. In the connecting lines, one or more remotely controllable valves can be arranged with the automatic control ( 40 ) are connected and operated by this. The air volume and pressure in the bellows ( 25 ) be increased or decreased.

The automatic control ( 40 ) may have a hard-wired computing and control unit or a microprocessor and also has a suitable power supply. About the controller ( 40 ) the air suspension ( 6 ) and possibly also regulated. For this purpose, the controller ( 40 ) with the measuring device ( 41 ). The control ( 40 ) can change the spring characteristic depending on the spring travel. On the other hand, it can keep the chassis level at a pre-set value as part of a scheme. In addition, the controller ( 40 ) the left and right air spring elements ( 24 ) act separately from each other and so adjust their spring characteristics on banks of the vehicle and possibly regulate.

Alternatively or additionally, another air supply ( 38 ) be present, the z. B. is formed as a compressed air connection, on the outside directly compressed air into the bellows ( 25 ) can be fed. In this case, each air spring element ( 24 ) its own compressed air connection ( 38 ), which allows a separate suspension adjustment left and right. For this type of air supply ( 38 ), another controller, in particular a manual controller ( 39 ) to be available. This consists z. B. from one or more ball valves, which are designed as a three-way valve. For each air spring element ( 24 ) can be a separate ball valve ( 39 ) to be available.

The controls ( 39 ), Compressed air connections ( 38 ) and ads ( 42 ) can each be converted into a structural unit ( 43 ), wherein for the various air spring elements ( 24 ) and for the left and right side of the vehicle separate units ( 43 ) available. These can be arranged at a convenient location, z. B. on the drawbar ( 3 ). At each drawbar a building unit ( 43 ) be mounted. Alternatively, an association of two building units ( 43 ) to a combination unit with central assembly possible. The parts ( 39 . 38 . 42 ) may alternatively be arranged individually and optionally separately at suitable locations.

The compressed air connections ( 38 ) can be fed from the outside with compressed air from an external compressor or a mobile compressed air storage, as it z. B. at gas stations for refilling the tire air is common. For this purpose, the air suspension ( 6 ) and air bellows ( 25 ) be designed for a corresponding pressure level of, for example, about 3 bar. The compressed air connections ( 38 ) may have a common tire valve for the feed. They are connected via suitable lines directly to the associated air bellows ( 25 ) connected.

11 and 12 illustrate a variant of the axle assembly ( 5 ), in which the axle body ( 7 ) additionally a stabilizer ( 15 ) having. This is designed as a slender torsion bar or torsion bar, which extends through the interior of both inner tube parts ( 17 . 18 ) and at both ends a connection part ( 16 ) for the rotational connection with the respective inner tube part ( 17 . 18 ) having. The connection part ( 16 ) may be a molded part, which to the non-rotationally symmetrical inner contour of the optionally retracted end of the inner tube parts ( 17 . 18 ) and ensures a positive torque transmission.

The axle arrangement ( 5 ) may also have the usual damper. For this purpose, on the preferably straight Radschwinghebeln ( 9 ) may be arranged according to approaches for fixing the movable damper end.

Variations of the embodiments shown and described are possible in various ways. The provided for a trailing arm axle straight axle body ( 7 ) may have a different shape and z. B. be angled to form a Schräglenkerachse arrow-shaped, with the Radschwinghebel are adjusted accordingly. Furthermore, more than two air spring elements ( 24 ) be present with a correspondingly adapted number of outer tube parts.

In the embodiments shown, the air spring arrangement ( 6 ) formed as a multi-circuit system, wherein the air spring elements ( 24 ) are independent of each other and separate pressure chambers or air bellows ( 25 ) to have. They can be adjusted independently. The air spring elements ( 24 ) may alternatively be coupled to their pressure chambers to form a single-circuit air spring system.

In the preferred embodiment, the air supply ( 37 ) and the controller ( 40 ) together on the axle assembly ( 5 ) and in particular on the outer tube ( 11 ) attached. Alternatively, you can change the position of the chassis ( 2 ) can be arranged. It is also possible to use the other air supply ( 38 ) plus manual control ( 39 ) and display ( 42 ) on the axle assembly ( 5 ) and Z. B. on the Achsböcken ( 8th ). The Axbucks ( 8th ) can vary in shape and to different types and sizes of chassis ( 2 ) and longitudinal beams ( 4 ) be adjusted. The axle attachments ( 8th ) may be formed in other ways. They can also be detachable with the preferably pushed through and positively connected outer tube parts ( 19 . 20 ). An attachment may alternatively be made permanently by welding, gluing, soldering or the like. Also with the axle-resistant carriers ( 26 ), the pipe penetration and the positive connection by another connection technology, for. B. a weld or the like. Can be replaced. The same applies to the connection of movable supports ( 27 ) with the inner tube ( 12 ) or its parts ( 17 . 18 ). In the preferred embodiment, the insert elements ( 13 ) in front of the consoles ( 30 ) the carrier ( 27 ). You can alternatively look through the consoles ( 30 ). For air suspension ( 6 ) is a manual operation with an indication on the vehicle in the manner described above ( 1 ) possible. Alternatively, a remote control with wireless signal transmission, z. B. by radio, infrared or the like., Possible. The display and the controls can be located on a possibly mobile manual control unit. The power supply has to be adjusted accordingly.

Furthermore, the air suspension ( 6 ) are operated with another compressible fluid, in particular a gas other than air. The term air suspension ( 6 ), the air spring elements ( 24 ) and the bellows ( 25 ) is to be understood in this sense as broad and general.

1

Vehicle, pendant

2

chassis

3

shaft

4

longitudinal beams

5

Axle

6

air suspension

7

axle body

8th

axle mounting, bulkhead

9

wheel swing

10

hub

11

axle tube, outer tube

12

axle tube, inner tube

13

Insert element, Spring element, rubber cord

14

recess groove

15

Stabilizer, torsion bar

16

Connector, moldings

17

Inner ear portion

18

Inner ear portion

19

Outer tube part, the edge

20

Outer tube part, the edge

21

Outer tube part, inside

22

separation point

23

distance

24

Air spring element

25

bellows

26

carrier axially fixed

27

carrier movable

28

Beam

29

support plate

30

console

31

fixation

32

attack

33

support housing

34

housing wall

35

bottom

36

Opening, slot

37

Air Supply, compressor

38

Air Supply, Compressed air connection

39

control manual, control, ball valve

40

control automatically

41

Measuring device, sensor

42

display

43

unit

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - US 6921098 B2 [0002]
• DE 19733968 A1 [0003]
• DE 4021096 A1 [0004]
• - US 3822908 A1 [0005]
• - DE 8619274 U1 [0006]
• - DE 3821569 C2 [0007]
• - DE 29822564 U1 [0008, 0033]

Claims (30)

Axle arrangement for vehicles ( 1 ) with an axle body ( 7 ) and end axle attachments ( 8th ) and an air suspension ( 6 ) with at least one air spring element ( 24 ), wherein the air spring element ( 24 ) between the axle mounts ( 8th ) and with axle body ( 7 ), the nested axle tubes ( 11 . 12 ), characterized in that the air spring element ( 24 ) on the inner and outer axle tube ( 11 . 12 ) is stored and supported. Axle arrangement according to claim 1, characterized in that the air spring element ( 24 ) two relatively movable supports ( 26 . 27 ) with an air bellows arranged in between ( 25 ) having. Axle arrangement according to claim 1 or 2, characterized in that between the nested axle tubes ( 11 . 12 ) Insert elements ( 13 ), in particular rubber cords, are arranged. Axle arrangement according to claim 1, 2 or 3, characterized in that the inner axle tube ( 12 ) a stabilizer ( 15 ) having. Axle arrangement according to one of the preceding claims, characterized in that the outer axle tube ( 11 ) in length in several at the separation point ( 22 ) spaced ( 23 ) Pipe parts ( 19 . 20 . 21 ) is divided. Axle arrangement according to one of the preceding claims, characterized in that the outer axle tube ( 11 ) three pipe parts ( 19 . 20 . 21 ) and two separation points ( 22 ) having. Axle arrangement according to one of the preceding claims, characterized in that the one carrier ( 26 ) relatively stationary on the outer axle tube ( 11 ) in the region of a separation point ( 22 ) is arranged. Axle arrangement according to one of the preceding claims, characterized in that the one carrier ( 26 ) on two adjacent pipe parts ( 19 . 20 . 20 . 18 ) is rotatably mounted. Axle arrangement according to one of the preceding claims, characterized in that the inner axle tube ( 12 ) in length in several separate pipe parts ( 17 . 18 ) is divided. Axle arrangement according to one of the preceding claims, characterized in that the other carrier ( 27 ) on the inner axle tube ( 12 ) in the region of a separation point ( 22 ) is arranged. Axle arrangement according to one of the preceding claims, characterized in that the other carrier ( 27 ) on a pipe part ( 17 . 18 ) and rotatably mounted together with this. Axle arrangement according to one of the preceding claims, characterized in that the carriers ( 26 . 27 ) positively with their pipe parts ( 17 . 18 . 19 . 20 . 21 ) are connected. Axle arrangement according to one of the preceding claims, characterized in that the one carrier ( 26 ) a hollow support housing ( 33 ) with an opening ( 36 ) on one side for the passage of the other carrier ( 27 ) to the inner axle tube ( 12 ) having. Axle arrangement according to one of the preceding claims, characterized in that the air spring element ( 24 ) at least one stop ( 32 ) for limiting the mutual relative movement of the carriers ( 26 . 27 ) having. Axle arrangement according to one of the preceding claims, characterized in that the air suspension ( 6 ) an air supply ( 37 . 38 ) for the air suspension element (s) ( 24 ) and a manual or automatic control ( 39 . 40 ) having. Axle arrangement according to one of the preceding claims, characterized in that the air spring elements ( 24 ) are individually controllable. Axle arrangement according to one of the preceding claims, characterized in that the air supply ( 37 ) is designed as a compressor and / or compressed air storage. Axle arrangement according to one of claims 1 to 18, characterized in that the air supply ( 38 ) as compressed air connection for the air bellows ( 25 ) is trained. Axle arrangement according to one of the preceding claims, characterized in that the air suspension ( 6 ) a measuring device ( 41 ) has for the chassis position. Axle arrangement according to one of the preceding claims, characterized in that the measuring device ( 41 ) with the automatic control ( 40 ) connected is. Axle arrangement according to one of the preceding claims, characterized in that the air supply ( 37 ), the measuring device ( 41 ) and the automatic control ( 40 ) on the axle body ( 7 ) are arranged. Axle arrangement according to one of the preceding claims, characterized in that the measuring device ( 41 ) with at least one advertisement ( 42 ) connected is. Axle arrangement according to one of the preceding claims, characterized in that the manual control ( 39 ) is designed as a ball valve, in particular as a 3-way valve. Axle arrangement according to one of the preceding claims, characterized in that each air spring elements ( 24 ) a manual control ( 39 ) and an ad ( 42 ) assigned. Axle arrangement according to one of the preceding claims, characterized in that the manual control (s) ( 39 ) and / or the advertisement (s) ( 42 ) on two sides of a chassis ( 2 ) of the vehicle ( 1 ), in particular on both sides of a drawbar ( 3 ) of a trailer, are arranged. Axle arrangement according to one of the preceding claims, characterized in that the axle arrangement ( 5 ) as trailing arm axle with a straight axle body ( 7 ) and with end wheel swing levers ( 9 ) is trained. Axle arrangement according to one of the preceding claims, characterized in that the outer axle tube ( 11 ) with the axle fasteners ( 8th ) is positively connected. Axle arrangement according to one of the preceding claims, characterized in that the inner axle tube ( 12 ) with the wheel swing levers ( 9 ) is positively connected. Axle arrangement according to one of the preceding claims, characterized in that the insert elements ( 13 ) a guide and pivot bearing for the inner tube parts ( 17 . 18 ) form. Axle arrangement according to one of the preceding claims, characterized in that the insert elements ( 13 ) in nominal position of the chassis ( 2 ) are not or only slightly biased, the air suspension ( 6 ) bears for the most part the wheel load and suspension load.