DE102019103875A1 - Axial ring for a roll stabilizer, roll stabilizer with the axial ring and method for manufacturing the roll stabilizer - Google Patents

Abstract

Roll stabilizers are used to improve the driving dynamics in a vehicle. The roll stabilizers must have good operational stability. A roll stabilizer 1 is proposed with an actuator assembly 2, a stabilizer arm 3 and an axial ring 9, the axial ring 9 having a central opening 10 for receiving the stabilizer arm 3, the axial ring having a sealing element 33 for sealing the axial ring 9 from the stabilizer arm 3, wherein the sealing element 33 is designed as a radial shaft seal.

Description

The invention relates to a roll stabilizer with an axial ring having the features of the preamble of claim 1. The invention also relates to a method for producing the roll stabilizer.

Roll stabilizers are used in vehicles to suppress rolling movements and thus improve driving dynamics. The roll stabilizers are arranged in the chassis of the vehicle and connected, for example, to a wheel suspension. In general, roll stabilizers are divided into active roll stabilizers and passive roll stabilizers. Active roll stabilizers enable the stabilizer arms to be rotated against each other with the aid of an actuator. To transmit power, the ends of the roll stabilizer are connected to the vehicle with screw connections. In order to avoid unintentional loosening of screw connections and / or other connections within the roll stabilizer, all connections must be optimized in terms of their stability and operational safety. Unintentional loosening of connections can have serious consequences for safety.

In addition to optimizing the screw connections, sealing the housing and the parts of a roll stabilizer against moisture, dirt and dust is a key concern. The seal of the roll stabilizer is often implemented in the form of custom-made products. In addition to sealing, a coating with corrosion-resistant protective layers is also a measure to improve safety and durability.

The pamphlet DE 10 1915 205 967 A1 , which probably represents the closest prior art, describes a castle nut for a roll stabilizer of a motor vehicle. The castle nut is used to axially connect a shaft and an actuator, the castle nut also being designed to seal off the actuator. The sealing element is distributed over the circumference and arranged on an end face.

The invention is based on the object of providing an axial ring for a roll stabilizer which has a safer operating behavior. The object is achieved by the roll stabilizer with an axial ring with the features of claim 1 by a method for producing the roll stabilizer with the features of claim 10. Preferred and / or advantageous embodiments of the invention emerge from the subclaims, the description and the accompanying figures .

According to the invention, a roll stabilizer with an actuator assembly, a stabilizer arm and an axial ring is proposed. The roll stabilizer is designed in particular as an active roll stabilizer. In particular, the roll stabilizer comprises two stabilizer arms which are connected to the actuator assembly. The stabilizer arm comprises and / or is designed as a torsion bar. A free end of the stabilizer arm can be fastened, for example, to the chassis, in particular the wheel suspension. Another free end is fastened and / or can be fastened to the actuator assembly, in particular by means of the axial ring.

The actuator assembly comprises and / or forms an active electromechanical roll stabilizer. The stabilizer arm is preferably connected to the actuator assembly by means of a flange connection. In particular, the actuator assembly can include a gear unit which, for example, forms a gear stage. The gear stage preferably has a gear output, for example a planet carrier, the stabilizer arm being fastened and / or attachable to the transmission output and / or planet carrier, in particular by means of the axial ring, flange and / or screw connection. The actuator assembly has, in particular, a housing, with the gear stage and / or an electromechanical drive being arranged in the housing, for example.

The axial ring is designed as a metal ring, for example. Alternatively, the axial ring can be a plastic ring or a ring made of a mixed material. It is particularly preferred that the axial ring is constructed from a corrosion-resistant material. Alternatively and / or in addition, the axial ring comprises a protective layer, the protective layer being corrosion-resistant. The axial ring is preferably a ring that is uninterrupted and / or continuous in the direction of rotation. The axial ring has a central opening. The central opening is preferably a circular, oval, elliptical or angular recess. The central opening is designed to receive and / or support the stabilizer arm. The central opening can form a support for the stabilizer arm. In the assembled state, the axial ring preferably surrounds the stabilizer arm in a cross section perpendicular to the longitudinal axis of the stabilizer arm. In particular, it can be provided that the axial ring has a flange-like design, the flange-like axial ring having one leg in the axial direction and one leg in the radial direction.

The axial ring has a sealing element for sealing the axial ring against the stabilizer arm. The sealing element can comprise one, two or more sealing lips. In particular, the sealing element has at least one radial inwardly directed sealing lip. The sealing lip is designed to rest on the stabilizer arm. The sealing element is preferably arranged in the area of the central opening. The sealing element preferably forms an annular seal. For example, the sealing lip and / or the sealing element extends in the circumferential direction around the central opening. For example, the stabilizer arm is sealed off from the axial ring in the area of the central opening.

The axial ring is coupled and / or connected to the actuator assembly. For example, the actuator assembly has a housing section, the axial ring being coupled and / or connected to the housing section. The coupling and / or the connection of the axial ring to the actuator assembly is implemented, for example, as a screw connection, in particular by means of a thread.

The axial ring preferably has a shoulder section. The shoulder section is designed in particular as a cylinder jacket surface. The shoulder section has an axial extension. The shoulder section preferably directly adjoins a flange section, the flange section being designed, for example, to form and / or delimit the central opening.

The sealing element is designed as a radial shaft seal. The radial shaft seal has at least one sealing lip, the sealing lip resting, for example, on a sealing surface of the stabilizer arm. The sealing lip is preferably an elastomer lip, a Teflon lip, a rubber lip, a rubber lip or a plastic lip. The radial shaft seal is preferably a standard component, the radial shaft seal representing, for example, a standardized seal, in particular a DIN 3760 standardized radial shaft seal.

The invention is based on the idea of using an axial ring which is connected to the actuator assembly to enable a simpler and more reliable seal between the stabilizer arm and the actuator assembly and to seal the system in a cost-effective manner.

Up until now, the stabilizer arm and the actuator assembly were connected using a pure flange connection. The flange on the transmission side has a toothing, in particular a Hirth toothing, and is axially connected to the planet carrier by means of a screw connection. In the prior art, the connection is sealed by means of a cassette seal. The cassette seals used are often custom-made and are very expensive.

By means of the proposed invention, an optimized and more reliable sealing and connection of the actuator assembly and the stabilizer arm is possible on the transmission side. In particular, the gear structure used is particularly durable and easier to seal. The roll stabilizer that can be provided in this way has improved robustness properties and is less sensitive to environmental influences. Furthermore, there are cost savings through a simplified possibility of manufacture and sealing.

It is optionally provided that the axial ring defines an inside and an outside. When the axial ring is in an assembled state, the inside of the actuator assembly and / or the gear stage is assigned. In the assembled state of the axial ring, the outside is assigned to an environment. By means of the sealing element and / or the sealing ring, the surroundings are separated from the inside and / or sealed against one another.

The axial ring preferably has a groove that is open to the inside. In particular, the groove is a recess in the axial direction. For example, the axial ring has a flange directed radially inward, the flange enclosing and / or forming the groove. The groove is preferably delimited by two cylinder surface sections. The groove forms a cup-shaped recess which is arranged circumferentially around the central opening. The sealing element is preferably designed as a radial shaft sealing element with a carrier.

The radial shaft sealing element preferably comprises at least two sealing lips. The radial shaft sealing element is designed, for example, as a radial shaft sealing ring. The radial shaft sealing element is inserted and / or pressed into the groove. The sealing element is held in the groove in a non-positive, positive, cohesive and / or loss-proof manner in the groove, in particular by means of the carrier. This refinement is based on the consideration of replacing the cost-intensive custom-made products, such as cassette seals, with cheaper radial shaft sealing rings that are stable over the long term.

One embodiment of the invention provides that the sealing element has a first sealing lip for contact with the actuator assembly and a second sealing lip for contact with the stabilizer arm. In particular, both sealing lips form radial sealing lips, for example a common radial shaft sealing ring. For example, the sealing lips can be arranged in the same direction, parallel and / or congruent. The first sealing lip and the second sealing lip are axially spaced from one another. In particular, both the first sealing lip and the second sealing lip are all around the central opening formed. The first sealing lip and the second sealing lip can for example be encompassed by the radial shaft sealing element which is inserted and / or pressed into the groove. In particular, the first sealing lip is designed to seal the transmission, the transmission stage and / or the actuator assembly. The second sealing lip rests on the stabilizer arm and is designed in particular to prevent moisture, dirt and / or dust from penetrating into the intermediate area between the first sealing lip and the second sealing lip. In particular, the second sealing lip is designed to seal a Hirth serration and / or the flange area with which the stabilizer arm is coupled to the actuator assembly. This refinement is based on the idea of providing a seal design which enables the actuator assembly and the coupling area of the actuator assembly with the stabilizer arm to be reliably sealed.

It is particularly preferred that the axial ring has an outer shoulder section directed towards the outside. For example, the outer side section is step-shaped. In particular, this section of the stabilizer arm is also stepped. A gap and / or a labyrinth gap is arranged between the outer shoulder section and the stabilizer arm. The gap and / or the outer shoulder section in combination with the stabilizer arm forms a labyrinth seal. The labyrinth seal runs in particular from the surroundings to the sealing element and in particular to the contact point of the second sealing lip on the stabilizer arm. A further sealing effect is achieved by means of the created gap and / or labyrinth, so that dirt, moisture and / or dust can be partially retained and the wear on the sealing lip can be reduced.

It is particularly preferred that the shoulder section has an annular channel for receiving a sealing ring. The annular channel is designed, for example, as a recess and / or bore into which the sealing ring can be or is inserted. The sealing ring forms a radial shaft sealing ring. For example, the shoulder section is step-shaped, with a radial and an axial surface abutting one another, the bore and / or the annular channel being arranged in particular in the area of the joint area. The sealing ring is designed as an O-ring and preferably as an elastomer ring. In particular, a plurality of ring channels for arranging a plurality of sealing rings can be arranged in the shoulder section.

The axial ring is preferably machined. The annular channel can be introduced as a bore or some other recess. Alternatively, in particular to further reduce costs, the axial ring can be designed as a deep-drawn part. The thread of the shoulder section can for example be introduced by means of roller burnishing.

The shoulder section preferably has a thread. The thread is specifically designed as an external thread. Alternatively, the thread can be designed as an internal thread. The shoulder section and thus the axial ring can be coupled to the actuator assembly by means of the thread. The axial ring is screwed to the actuator assembly with the aid of the shoulder section or the thread. In particular, the thread is designed as an external thread, the actuator assembly having a mating thread which is designed as an internal thread. In particular, the actuator assembly has the housing, the housing having the mating thread and being able to be coupled via it to the axial ring or the shoulder section.

The actuator assembly has in particular a roller bearing. The roller bearing is inserted, for example, into a housing section of the actuator assembly and / or connected to an interference fit. For example, the roller bearing is designed to pivot a connection section, a planet carrier and / or a shaft. In particular, the connection section, the planet carrier or the shaft is designed to be coupled and / or connected to the stabilizer arm. Furthermore, the roller bearing can form a bearing for pivotably receiving the stabilizer arm.

The axial ring optionally forms a securing element for the roller bearing. The axial ring is designed and / or set up to secure the roller bearing as a securing element in an axial position. For example, the axial ring is supported on the roller bearing, in particular supported on an outer ring of the roller bearing. In particular, the axial ring is firmly and / or axially fixed to the actuator assembly by means of the thread, the axial ring securing and / or positioning the rolling bearing axially via a contact and / or a support on the rolling bearing.

It is particularly preferred that the axial ring has a corrosion protection layer. For example, the corrosion protection layer is applied by electroplating the axial ring. In particular, the stabilizer arm and / or flange of the stabilizer arm also has a corrosion protection layer. The corrosion protection layer can also be applied as a powder coating to the axial ring and / or the stabilizer arm. In particular, the sealing surfaces are coated with the corrosion protection layer, for example sealing surfaces the contact areas of the first and second sealing lip.

One embodiment of the invention provides that the axial ring has bores and / or recesses as tool engagement. Easier assembly of the axial ring is possible by means of the bores and recesses. For example, the bores and / or recesses are arranged in a wrench size. It is particularly preferred that the bores and / or recesses are arranged on the outer diameter of the axial ring. By means of this configuration, easier and simple assembly of the axial ring when assembling the roll stabilizer is possible.

The roll stabilizer is designed in particular for a car or truck. The roll stabilizer can, for example, be integrated into a rear axle or a front axle of the vehicle and / or coupled to it.

It is particularly preferred that the stabilizer arm has a radial contact surface for the sealing lip. Furthermore, it is particularly provided that the stabilizer arm has a Hirth serration for coupling to the actuator assembly and in particular to the gear stage. The Hirth coupling is preferably arranged on a flange of the stabilizer arm. It is particularly preferred that the Hirth toothing forms an uncoated section without an anti-corrosion layer, the contact surface being provided with the anti-corrosion layer. For example, the area of the Hirth toothing and / or areas which are to be formed without a corrosion protection layer are masked for coating. The masking can take place, for example, with a silicone mask or a magnetic mask.

The invention also provides a method for producing the roll stabilizer, in particular as described above. To do this, the axial ring is screwed to the actuator assembly. In particular, the axial ring is screwed to a housing of the actuator assembly. It is particularly preferred that the actuator assembly and / or its housing has an internal thread, wherein the axial ring has an external thread and can thus be screwed together. In particular, a sealing element is inserted into the axial ring. For example, the sealing element is inserted and / or pressed into a groove. The stabilizer arm is coupled and / or screwed to the actuator assembly. In this case, the stabilizer arm is pushed in particular through the central opening of the axial ring, and the axial ring is sealed off from the stabilizer arm by means of the sealing element. For example, the actuator assembly has an end face mating toothing, in particular a counter-Hirth toothing, and the stabilizer arm has a toothing, in particular a Hirth toothing, wherein the toothing and the counter-toothing can be coupled and / or connected.

It is particularly preferred that the stabilizer arm is screwed to the actuator assembly. The roll stabilizer is in particular sealed multiple times, with the sealing element sealing the inner area. For example, the sealing element comprises two sealing lips, a first sealing lip sealing the roll stabilizer in such a way that no dirt, moisture or dust can penetrate into the actuator assembly and / or gear stage. The second sealing lip is preferably designed to seal the outer area against the Hirth coupling. A third seal takes place, for example, by inserting a sealing ring into the shoulder section of the axial ring. This seals the thread and mating thread area between the axial ring and the actuator assembly. This enables an inexpensive and safe installation of a roll stabilizer.

• 1 ein Ausführungsbeispiel eines aktiven Wankstabilisators;
• 2 einen Anflanschabschnitt eines Stabilisatorarms gemäß Stand der Technik;
• 3 schematisch eine 3D-Ansicht auf ein Ausführungsbeispiel eines Axialrings;
• 4 einen Querschnitt durch den Axialring aus 3;
• 5 eine Detailansicht eines Ausführungsbeispiels eines Wankstabilisators mit dem Axialring;
• 6 eine Detailansicht in den Bereich des Axialrings aus 5;
• 7a, 7b und 7c ein Montagebeispiel des Dichtungselements und eines Dichtrings im Axialring;

Further advantages, effects and configurations emerge from the attached figures and their description. Show:

• 1 an embodiment of an active roll stabilizer;
• 2 a prior art stabilizer arm flange portion;
• 3 schematically, a 3D view of an embodiment of an axial ring;
• 4th a cross section through the axial ring 3 ;
• 5 a detailed view of an embodiment of a roll stabilizer with the axial ring;
• 6th a detailed view of the area of the axial ring 5 ;
• 7a , 7b and 7c an assembly example of the sealing element and a sealing ring in the axial ring;

1 shows an example of a roll stabilizer 1 with an actuator assembly 2 , a stabilizer arm 3 and an engine side arm 4th . The stabilizer arm 3 is designed, for example, as a torsion bar and attached to the actuator assembly by means of a flange 2 coupled. The actuator assembly 2 forms an electromechanical actuator which, for example, rotates the stabilizer arm 3 and actuator assembly 2 allows each other. The arm is on the motor side 4th also by means of a flange to the actuator assembly 2 coupled. The actuator assembly 2 includes, for example, a motor which can be effectively connected to the stabilizer arm by means of a gear stage. In particular, the Gear stage on a planet carrier. The planet carrier comes with the stabilizer arm 3 connected, for example by means of a flange connection. The two flange connection sections each have a toothing, in particular a Hirth toothing.

2 Figure 3 shows schematically one end of the stabilizer arm 3 in the prior art. The stabilizer arm 3 has a flange 5 on. At the axial free end of the flange 5 is a Hirth coupling 6th arranged, which can be coupled and brought into engagement with a counter-Hirth toothing of the actuator assembly 2 . Furthermore, the flange 5 Drilling 7th on, which are designed to accommodate screws, with the help of which the flange to the actuator assembly 2 can be fastened and / or screwed. On a radial outside, in particular in an area adjacent to the Hirth coupling 6th , the flange points 5 a sealing surface 8th on. On the sealing surface 8th lies in the assembled state of the stabilizer arm 3 in the prior art, a sealing lip of a cassette seal.

3 schematically shows a 3D view of an embodiment of an axial ring 9 for connecting an actuator assembly 2 and a stabilizer arm 3 . The axial ring 9 has a central opening 10 on, which is circular. Furthermore, the axial ring 9 a paragraph section 11 and a flange portion 12 on. The flange section 12 can in particular an external paragraph section 13th exhibit. The heel section preferably stands 11 and the outer section 12 perpendicular to each other. The axial ring 9 also has a plurality of recesses 14th on which a simpler assembly of the axial ring on the actuator assembly 2 enable. The recesses 14th are in particular spaced apart from one another at a distance for a tool. The recesses 14th are on a radially outer portion of the axial ring 9 arranged and circumferentially spaced from one another.

4th shows a cross section through the axial ring 9 out 3 . The axial ring 9 is designed to be rotationally symmetrical about an axis of rotation R, the axis of rotation R passing through the center point of the central opening 10 runs. The axial ring is designed as a metal ring, for example made of steel. The axial ring 9 is in this embodiment a deep-drawn workpiece, alternatively the axial ring 9 be made in a machining process. Furthermore, the axial ring 9 a protective layer 15th on.

The axial ring 9 has a first leg 16 which extends in the axial direction, and a second leg 17th extending in a radially inward direction. First leg 16 and second leg 17th are particularly perpendicular to one another in a joint area. The outer section of the joint area of the first leg 16 and second leg 17th is milled off and / or bevelled with a bevel 18th .

The axial ring 9 has a paragraph section 11 on. The paragraph section 11 is on the first leg 16 arranged. The paragraph section 11 is step-shaped and can, for example, be a cutout in the radial direction on the first leg 16 form. In the step joint area, the shoulder section 11 a ring channel 19th on. In the ring channel 19th For example, a sealing ring can be inserted. The axial ring 9 and especially the paragraph section 11 has a thread 20th on. The thread 20th is designed as an external thread and can be connected to a housing of the actuator assembly 2 be connected and / or screwed.

The second leg 17th has a groove 21st on. The groove 21st can for example through a recess in the second leg 17th be educated. The groove 21st is to the outside area 22nd limited. Furthermore, the groove 21st bounded radially outside and radially inside. In the groove 21st a sealing element can be pushed in and / or pressed in.

The groove 21st is radially inward by means of an axial ring section 23 limited. The axial ring section 23 in particular forms an outer shoulder section 13th , which is stepped. The outside paragraph section 13th is adjacent and / or delimiting the central opening 10 educated.

5 shows a cross section through an embodiment of an actuator assembly 2 , coupled with the stabilizer arm 3 by means of the axial ring 9 . The actuator assembly 2 has a housing 25th on. In the case 25th is a motor unit 26th arranged. The motor unit 26th is by means of a gear stage 27 with a planet carrier 28 connected. The planet carrier 28 points in particular to the Gegen-Hirth section 29 for coupling with the stabilizer arm 3 so that rotational movements between planet carriers 28 or the actuator assembly 2 on the stabilizer arm 3 are transferable. The stabilizer arm 3 is with screws 30th with the actuator assembly 2 connected. The function and attachment of the axial ring 9 can be seen in a detailed view.

The actuator assembly 2 has a rolling bearing 38 on. The roller bearing 38 in the case 25th arranged and / or attached. The roller bearing 38 supports the planet carrier 28 pivotable. By tying the stabilizer arm 3 to the pivoted planet carrier 28 the stabilizer arm is also pivotable by the motor unit 26th . The roller bearing 38 lies axially on the inside of the housing 25th and is secured axially inwards. In order to prevent the roller bearing from shifting and / or slipping axially outwards, the axial ring forms 9 a Securing element for the roller bearing 38 . The axial ring 9 is on an outer ring 39 of the rolling bearing 38 adjacent and / or supported. Thus the rolling bearing 38 axially secured.

6th shows a detail from 5 , which is the area of the axial ring 9 in the roll stabilizer 1 shows. The axial ring 9 is with the case 25th the actuator assembly 2 screwed. The housing 25th a mating thread section 31 in the form of an internal thread. The mating thread section 31 is with the thread 20th of the axial ring 9 coupled. In the axial ring is a seal in the form of a sealing ring 32 inserted, which prevents the penetration of dirt, moisture and dust.

In the groove 21st is a sealing element 33 used. The sealing element 33 becomes form-fit, force-fit and preferably in the groove 21st held. The sealing element 33 is designed as a radial shaft sealing element and has a first sealing lip 34 and a second sealing lip 35 on. The first and second sealing lip 34 , 35 are designed as radial lips and directed radially inward. The first and second lips 34 , 35 are designed in particular as rubber lips. The first lip 34 lies on the actuator assembly 2 on. In particular, the first sealing lip makes contact 34 a section of the actuator assembly 2 in which holes to accommodate the screws 30th are arranged. The second sealing lip 35 contacts the stabilizer arm 3 . The first sealing lip thus points 34 and the second sealing lip 35 different contact partners, once the actuator assembly 2 and once the stabilizer arm 3 .

The outer shoulder section forms a further seal 13th a labyrinth seal 36 together with the stabilizer arm 3 . Between the stabilizer arm 3 and the axial ring 9 is in the area of the outer heel section 13th a gap channel is arranged which forms the labyrinth sealing function.

The axial ring thus enables a multiple sealing effect to seal off the roll stabilizer 1 versus an environment. The sealing ring has a sealing effect 32 , the first sealing lip 34 , the second sealing lip 35 and the labyrinth seal 36 .

7a , 7b and 7c show the assembly of the seals in the axial ring 9 .

7a shows a sealing element 33 , which is designed as a radial shaft sealing element. The sealing element 33 has the first sealing lip 34 and the second sealing lip 35 which are designed as radially inwardly directed sealing lips. The sealing lips 34 and 35 are designed as rubber lips and are held by a carrier 37 held. The carrier 37 can be designed as a metal or a plastic carrier. The carrier 37 in particular forms an annular carrier.

7b shows the axial ring 9 , in which the sealing element and the sealing ring have not yet been introduced. The axial ring 9 is designed as a steel ring. The sealing element is used to assemble the individual seals 33 into the groove 21st inserted. In particular, the carrier forms 37 a form fit with the groove 21st . In particular, the sealing element 33 into the groove 21st pressed in and / or glued in. Furthermore, to realize a sealing effect of the axial ring 9 a sealing ring 32 in the ring channel 19th inserted.

7c shows the axial ring 9 with the inserted sealing ring 32 and the assembled and pressed-in sealing element 33 . The axial ring thus equipped and produced 9 is now ready for assembly and / or coupling with the actuator assembly for the roll stabilizer. Further steps are used to manufacture the roll stabilizer 1 the so-equipped axial ring 9 with the housing of the actuator assembly 2 screwed. The stabilizer arm 3 is then through the central opening of the axial ring 9 out, the stabilizer arm in operative connection, for example by means of the Hirth connection, with the actuator assembly 2 is brought. Actuator assemblies are used to fix the assembly 2 and stabilizer arm 3 by means of the screws 30th connected.

List of reference symbols

1

Roll stabilizer

2

Actuator assembly

3

Stabilizer arm

4th

Motor-side arm

5

flange

6th

Hirth coupling

7th

drilling

8th

Sealing surface

9

Axial ring

10

Central opening

11

Paragraph section

12

Flange section

13

External heel section

14th

Recess

15th

Protective layer

16

First leg

17th

Second leg

18th

bevel

19th

Ring channel

20th

thread

21st

Groove

22nd

Outdoor area

23

Axial ring section

25th

casing

26th

Motor unit

27

Gear stage

28

Planet carrier

29

Counter-Hirth section

30th

screw

31

Mating thread section

32

Sealing ring

33

Sealing element

34

First sealing lip

35

Second sealing lip

36

Labyrinth seal

37

carrier

38

roller bearing

39

Outer ring

R.

Axis of rotation

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 101915205967 A1 [0004]

Claims (10)

Roll stabilizer (1) for a vehicle, with an actuator assembly (2), a stabilizer arm (3) and an axial ring (9), the axial ring (9) having a central opening (10) for receiving the stabilizer arm (3), the axial ring (9) is coupled to the actuator assembly (2), the axial ring (9) having a sealing element (33) for sealing the axial ring (9) against the stabilizer arm (3), characterized in that the sealing element (33) is a radial shaft seal is trained. Roll stabilizer (1) after Claim 1 , characterized in that the sealing element (33) has a first sealing lip (34) for resting on the actuator assembly (2) and a second sealing lip (35) for resting on the stabilizer arm (3). Roll stabilizer (1) after Claim 1 or 2 , characterized in that the axial ring (9) defines an inner side and an outer side, the inner side facing the actuator assembly (2) in an assembled state of the axial ring (9), the axial ring (9) having a groove (21 ), wherein the sealing element (33) is inserted and / or pressed into the groove (21). Roll stabilizer (1) according to one of the preceding claims, characterized in that the axial ring (9) has a shoulder section (11) with an annular channel (19), a sealing ring (32) being arranged in the annular channel. Roll stabilizer (1) according to one of the preceding claims, characterized in that the axial ring (9) has an outer shoulder section (13) directed to the outside, the outer shoulder section (13) forming a labyrinth seal (36) with the stabilizer arm (3). Roll stabilizer (1) according to one of the preceding claims, characterized in that the axial ring (9) has a shoulder section (11) with a thread (20) for coupling to the actuator assembly (2). Roll stabilizer (1) according to one of the preceding claims, characterized in that the actuator assembly (2) has a roller bearing (38), the axial ring (9) forming a securing element for axially securing the roller bearing (38). Roll stabilizer (1) after Claim 7 , characterized in that the roller bearing (38) comprises an outer ring (39), the axial ring (9) being supported on the outer ring (39) for axially securing the roller bearing (38). Roll stabilizer (1) according to one of the preceding claims, characterized by recesses as tool attachment during assembly. Method for manufacturing a roll stabilizer (1) according to one of the preceding claims, wherein the actuator assembly (2) is sealed by means of the sealing element of the axial ring (9).

Images