WO2021239178A1

WO2021239178A1 - Actuator device for a clutch assembly of a vehicle, and clutch assembly of a vehicle

Info

Publication number: WO2021239178A1
Application number: PCT/DE2021/100389
Authority: WO
Inventors: Fadil Mahracha; Markus Heitbaum; Marc Finkenzeller
Original assignee: Schaeffler Technologies AG & Co. KG
Priority date: 2020-05-27
Filing date: 2021-04-29
Publication date: 2021-12-02
Also published as: DE102020114131A1; DE102020114131B4

Abstract

The invention relates to an actuator device (1) for a clutch assembly (20) of a vehicle, having: - a housing element (2) for connecting to a drive shaft (30), - a piston element (3) for displacing a pressure plate (21) of a clutch assembly (20), and - a pressure chamber (4) between the housing element (2) and the piston element (3), which pressure chamber (4), by taking in or releasing fluid, varies the spacing between housing element (2) and piston element (3), whereby a pressure plate (21) of a clutch assembly (20) is movable towards or away from a clutch disc (22), - wherein the actuator device (1) has a connecting means (5) which is non-destructively releasable and fastenable in order to connect the housing element (2) to a drive shaft (30). The invention furthermore relates to a clutch assembly (20) of a vehicle having an actuator device (1).

Description

Aktorvorrichtunq for a clutch assembly of a vehicle and a clutch assembly of a vehicle

The invention relates to an actuator device for a clutch assembly of a vehicle and a clutch assembly of a vehicle with an actuator device.

Through continuous efforts in the field of flybridization, dual clutch transmissions, for example, have also come into focus.

In the case of conventional clutch assemblies or their actuator devices, it was found that the installation space for installing a standard actuator device or a standard central clutch release (CSC) for actuating a disconnect clutch in a hybridized dual clutch transmission is very limited and almost impossible.

At the same time, it was noticed that, due to the limited installation space, a user-friendly solution is required that allows the actuator device to be installed or removed in a simple manner.

It is therefore the object of the present invention to provide an actuator device for a coupling assembly of a vehicle and a coupling assembly of a vehicle with an actuator device which can be placed in an existing installation space and which preferably ensures a simple type of assembly and disassembly in order to facilitate repair processes .

According to the invention, this object is achieved by the features of the independent patent claims. Further advantageous developments are the subject of the subclaims Un.

In a first aspect of the present invention, an actuator device for a clutch assembly of a vehicle comprises a housing element for connection to a drive shaft.

Furthermore, the actuator device has a piston element for moving a pressure plate of a clutch assembly.

In addition, the actuator device comprises a pressure space between the housing element and the piston element, which by receiving or dispensing fluid Distance between housing element and piston element changed, whereby a pressure plate of a clutch assembly can be moved towards or away from a clutch disc.

Furthermore, the actuator device has a non-destructively detachable and attachable connecting device in order to connect the housing element to a drive shaft.

In this case, the housing element and a drive shaft can be designed so that they can be connected to one another in a rotationally secure or torsionally secure manner, so that torques of the drive shaft can be transmitted to the housing element.

Furthermore, the housing element and the piston element can be designed so that they allow a relative rotation to one another, but a force can be transmitted in the axial direction from the housing element to the piston element and vice versa by flowing a fluid into the pressure chamber or from the pressure chamber.

With the aid of the actuator device presented above, it is possible to design the piston element and the housing element in a space-neutral manner, so that, for example, they can be used in a hybridized dual clutch transmission. This can be achieved in particular in that the piston element and the housing element have a shape that is disk-like or plate-like, for example similar to the housing of a clutch.

Furthermore, the non-destructive detachable and attachable connecting device for connecting the housing element to a drive shaft can be designed so that the housing element can be arranged directly or indirectly with its outside on a drive shaft. The housing element can also be designed such that its inside, which forms part of the pressure chamber, can be tensioned against the drive shaft in order to fasten the housing element to the drive shaft.

Furthermore, the non-destructively detachable and attachable connecting device can have a connecting section for the rotationally secure connection of the housing element to a drive shaft. With the aid of the connecting section, it is possible to connect the housing element of the actuator device to a drive shaft in a form-fitting and / or force-fitting manner. Here, the connection section can be formed by the housing element, wherein, for example, the connection section can be formed close to the axis of rotation of the piston element. Due to the arrangement close to the axis of rotation, centrifugal forces, for example on connecting elements that are introduced into the connecting section, can be reduced.

Furthermore, the connecting section can have at least one passage for a connecting element which connects the housing element to a drive shaft in the axial direction, whereby the housing element can be secured to a drive shaft in the axial direction.

In addition, the connecting section can extend in the axial direction and have a hollow cylindrical shape with an inner and an outer jacket surface.

It is also possible for the connecting section to have a plurality of passages for connecting elements, the passages being arranged symmetrically about the axis of rotation of the piston element. In this way, connecting forces between the connecting portion of the housing element can be distributed over several connecting elements and centrifugal forces can be compensated.

Furthermore, the plurality of passages can be adapted to a plurality of connecting receptacles of a hub element of the connecting device in terms of number and geometric arrangement. This facilitates the assembly of the Aktorvor direction.

The connecting section can also extend in the axial direction and, in cross-section along the axis of rotation, have a shape similar to a double T-beam. It is possible that the connecting section formed by the double T-beam is arranged in relation to the axis of rotation in such a way that the double-T-beam is aligned symmetrically to the axis of rotation.

In addition, the connecting section can have a single passage, the axis of which is arranged congruently to the axis of rotation of the piston element. With just one single passage of the connecting section, the assembly or the assembly or disassembly of the actuator device on a drive shaft is considerably simplified ver. Because now, for example, only a single connecting element is required, which connects the housing element to a drive shaft.

Furthermore, it is conceivable that a splined shaft profile, polygonal profile, splined shaft profile or serration is formed on the outer surface of the connecting section, which can be connected to a corresponding mating profile in order to connect the housing element to a drive shaft via a non-positive and / or positive connection connect to.

In addition, the outer jacket surface can be designed without a profile for a frictional connection in order to connect the housing element to a drive shaft via a non-positive connection.

Furthermore, the non-destructive detachable and attachable connecting device can have a hub element for the rotationally secure connection of the housing element to a drive shaft.

Here, the hub element can have a part of a shaft-hub connection, which can be formed without a profile or by means of a splined shaft profile, polygonal profile, splined shaft profile or serration, which can be connected to a corre sponding counter profile. As a result, the housing element can be connected to a drive shaft via a non-positive and / or positive connection.

Furthermore, the hub element can be connected on its inner lateral surface to a drive shaft, for example the hub element having at least one connec tion receptacle for a connection element which connects the housing element to the hub element in the axial direction. As a result, the housing element can be secured to a drive shaft in the axial direction.

The hub element can also have a plurality of connection receptacles for connec tion elements, the connection receptacles being arranged symmetrically about the axis of rotation of the hub element. Thus, a torque that is transmitted from a drive shaft to the hub element can be securely transmitted to the housing element via the plurality of connection receptacles for connection elements or via the plurality of connection elements. It is possible here for the multiplicity of connection receptacles to be adapted to a multiplicity of passages of a connection section of the connection device in terms of number and geometric arrangement. This facilitates the assembly of the actuator device or the installation of the actuator device on a drive shaft.

In addition, the at least one connection receptacle can have a thread for screwing with a connecting element. In this way, for example, the housing element can be connected to the hub element, in particular when screws are used as connecting elements.

Furthermore, a you telement, in particular an O-ring, for sealing the pressure chamber can be arranged between the hub element and the piston element, in particular the connecting section which is formed by the housing element. This sealing element is used to seal the pressure space, which is partially formed by the housing element and the hub element.

Furthermore, the hub element can be designed as a hollow cylinder and have a splined shaft profile, polygonal profile, toothed shaft profile or serration on its inner surface in order to connect the housing element to a drive shaft via a non-positive and / or positive connection.

The inner jacket surface can also be designed without a profile for a frictional connection in order to connect the housing element to a drive shaft via a non-positive connection.

In addition, the inner jacket surface of the hub element can be connected to the housing element, in particular to the outer jacket surface of the connecting section of the connecting device.

Furthermore, the piston element can have at least one opening through which a tool and connecting element can be inserted in order to detach the housing element from a drive shaft or to attach it to it. In this way, the piston element can reach through to the housing element in order to fasten the housing element in a simple manner to a drive shaft or to detach it therefrom. Furthermore, the piston element can have a plurality of openings for connecting elements, the openings being arranged symmetrically about the axis of rotation of the piston element.

In addition, the multiplicity of openings can be adapted to a multiplicity of connection receptacles of a hub element of the connection device and / or to the multiplicity of passages of a connection section of the connection device in terms of number and geometric arrangement. In this way it can be ensured that through the one-time relative alignment of the piston element to the housing element, all connecting elements that connect the housing element directly or indirectly to a drive shaft can be reached from the piston element.

It is conceivable that the piston element has one closure device per opening, wherein the closure device can be designed as a closure plug.

The sealing plug can also have a sealing element, in particular an O-ring, for resting against the outside of the piston element. In this way, an improved seal can be achieved.

A second aspect of the present invention includes a clutch assembly of a vehicle.

It should be noted that the features of the actuator device, as they are mentioned under the first aspect, can be used individually or in combination with one another in the clutch assembly.

In other words, the features mentioned above under the first aspect of the invention relating to the actuator device can also be combined with further features here under the second aspect of the invention.

For example, a clutch assembly of a vehicle has as an input side an actuator device according to the first aspect, which can be connected to a drive shaft.

Furthermore, the clutch assembly comprises, as the output side, a transmission element that can be connected to a transmission input side, the transmission element producing or interrupting a torque transmission through a releasable connection with the input side. In addition, the clutch assembly comprises at least one connecting element, formed as a screw, wherein either the at least one connecting element connects the housing element to the hub element, or the housing element can be connected to a drive shaft with a single connecting element.

Furthermore, the actuator device and a drive shaft can share a common axis of rotation.

Furthermore, the actuator device can comprise a pressure element, a pressure plate and a movement transmission element, which connects the pressure plate to the piston element of the actuator device, so that a displacement of the piston element causes a displacement of the movement transmission element and thus the pressure plate.

In addition, the pressure element can be fastened on the outside of the housing element of the Aktorvor device, and can be arranged in relation to the pressure plate in such a way that it presses a clutch disc onto the pressure element.

In this case, the transmission element can comprise an output element and a clutch disc, which is arranged between the pressure element and the pressure plate and can be connected to a transmission via the output element.

Finally, it is noted that a fluid for the pressure chamber can be made available through a bore in the drive shaft.

The inventive idea presented above is additionally expressed in other words below.

This idea preferably relates - in simplified form - to a space-neutral actuator device with a piston element rotating relative to one another and a housing element, between which a pressure chamber is arranged.

Because of the pressure space between the piston element and the housing element, a user-friendly solution has to be worked out which enables the actuator device to be mounted or removed.

This solution can consist, among other things, in that an axial and tangential fastening of the actuator device as well as its dismantling (e.g. when visiting a workshop) can be guaranteed. Against this background, it is proposed as a solution that the actuator device has a non-destructively detachable and attachable connecting device in order to connect the housing element to a drive shaft.

In simple terms, the present invention provides a solution to the above-mentioned problem in such a way that the actuator device or its housing element can be fastened, in particular screwed, to a drive shaft.

The invention is explained in more detail below on the basis of exemplary embodiments in conjunction with the associated drawings. Here show schematically:

Fig. 1 is a sectional view of a coupling assembly with a

Actuator device according to a first embodiment;

FIG. 2A shows an enlargement from FIG. 1; FIG.

FIG. 2B shows an enlargement from FIG. 1 with a tool for

Assembly and disassembly; and

Fig. 3 is a sectional view of a coupling assembly with a

Actuator device according to a second embodiment.

In the following description, the same reference numerals are used for the same objects.

Figure 1 shows a sectional view of a clutch assembly 20 with an Aktorvor device 1 according to a first embodiment, where Figure 2A shows an enlargement from Figure 1 as well as Figure 2B, whereas Figure 2B also shows a tool for assembly and disassembly.

For the sake of simplicity and brevity, FIGS. 1, 2A and 2B are described together below.

Shown more precisely, FIGS. 1, 2A and 2B show a clutch assembly 20 of a vehicle which has an actuator device 1 as its input side, which can be connected to a drive shaft 30 (indicated by dashed lines). Furthermore, the clutch assembly 20 has a transmission element 22, 26 as the output side, which can be connected to a transmission input side, the transmission element 22, 26 producing or interrupting a torque transmission through a releasable connection to the input side.

Furthermore, FIGS. 1 to 2B show that the coupling assembly 20 has a multiplicity of connecting elements 23, each designed as a screw.

The connecting elements 23 connect a housing element 2 of the actuator device 1 to a hub element 9 of the actuator device 1.

It is also shown in FIGS. 1, 2A, 2B that the actuator device 1 comprises a pressure element 24, a pressure plate 21 and a movement transmission element 25 which connects the pressure plate 21 to the piston element 3 of the actuator device 1. A displacement of the piston element 3 thus causes a displacement of the movement transmission element 25 and thus the pressure plate 21.

Furthermore, the pressing element 24 is fastened on the outside of the housing element 2 of the actuator device 1 and is arranged in relation to the pressure plate 21 in such a way that it presses a clutch disk 22 onto the pressing element 24.

The clutch disk 22 and an output element 26 form the transmission member 22, 26, the clutch disk 22 being arranged between the pressure element 24 and pressure plate 21 and being connectable to a transmission via the output element 26.

As already mentioned, FIGS. 1, 2A and 2B show an actuator device 1 for a clutch assembly 20.

Here, the actuator device 1 comprises a housing element 2 for connection to the drive shaft 30, a piston element 3 for moving a pressure plate 21 of a clutch assembly 20, and a pressure chamber 4.

The pressure chamber 4 is arranged between the housing element 2 and the piston element 3, which changes the distance between the housing element 2 and the piston element 3 by receiving or releasing fluid. As a result, a pressure plate 21 of a clutch assembly 20 can be moved towards or away from a clutch disc 22. The actuator device 1 has a non-destructive detachable and attachable connection device 5 in order to connect the housing element 2 to the drive shaft 30. The actuator device 1 and the drive shaft 30 ideally share a common axis of rotation D.

In other words, and in brief, the non-destructive detachable and fastenable connecting device 5 for connecting the housing element 2 to the drive shaft 30 is designed so that the outside of the housing element 2 is arranged directly on the drive shaft 30. The housing element 2 is also designed such that its inside, which forms part of the pressure chamber 4, can be tensioned against the drive shaft 30 in order to fasten the housing element 3 to the drive shaft 30.

The non-destructive detachable and attachable connecting device 5 has a connecting section 6 for the rotationally secure connection of the housing element 2 to the drive shaft 30, the connecting section 6 being formed by the housing element 2. FIG. 1 also shows that the connecting section 6 is formed close to the axis of rotation D of the piston element 3.

According to FIGS. 1, 2A and 2B, the connecting section 6 has a multiplicity of passages 7 for connecting elements 23 which connect the housing element 2 to the drive shaft 30 in the axial direction A. As a result, the housing element 2 can be secured in the axial direction A to the drive shaft 30 or can be connected to the drive shaft 30 in a rotationally secure or torque-secure manner. The passages 7 are arranged symmetrically about the axis of rotation D of the piston element 3 in order to prevent imbalances.

As can be seen in Figure 1, the connecting portion 6 extends in the axial direction A and has a hollow cylindrical shape with an inner and outer shell surface.

Furthermore, FIGS. 1 to 2B show that the non-destructively detachable and attachable connection device 5 has a hub element 9 for the rotationally secure connection of the housing element 2 to the drive shaft 30.

The hub element 9 can be connected to the drive shaft 30 on its inner circumferential surface IM and forms part of a shaft-hub connection. It can Hub element 9 on its inner lateral surface IM have a spline, polygonal profile, splined shaft profile or serration to connect the housing element 2 to the drive shaft 30 via a non-positive and / or positive connection to ver.

In the present case, however, the inner jacket surface IM is designed without a profile for a frictional connection in order to connect the housing element 2 to the drive shaft 30 via a force-locking connection.

As can be seen from FIGS. 1, 2A and 2B, the hub element 9 has a plurality of connection receptacles 10 for connection elements 23, which connect the housing element 2 to the hub element 9 in the axial direction A. As a result, the housing element 2 can be secured in the axial direction A on the drive shaft 30.

In addition, the connection receptacles 10 are arranged symmetrically about the axis of rotation D of the hub element 9, the plurality of connection receptacles 10 being adapted to the plurality of passages 7 of the connecting section 6 of the connecting device 5 in terms of number and geometric arrangement.

In order to screw the connecting elements 23 together, the connecting receptacles 10 each have a thread.

Furthermore, FIGS. 1, 2A, 2B show that a sealing element 11, designed as an O-ring, for sealing the pressure chamber 4 is arranged between the hub element 9 and the piston element 3, in particular the connecting section 6 which is formed by the housing element 2 is.

With a view of the piston element 3, FIGS. 1, 2A and 2B show that it has a large number of openings 12 through which a tool W (see FIG to loosen or to attach to it. The openings 12 are arranged symmetrically about the axis of rotation D of the piston element 3.

Strictly speaking, FIG. 1 in particular shows that the plurality of openings 12 is matched to the plurality of connection receptacles 10 of the hub element 9 of the connecting device 5 and to the plurality of passages 7 of the connecting section 6 of the connecting device 5 in terms of number and geometric arrangement. In this way, connecting elements 23 can through the piston element ment 3 can be inserted into the housing element 2 in such a way that the housing element 2 is connected to the hub element 9, whereby a connection to the drive shaft 30 can also be established.

Furthermore, FIG. 1 shows that the piston element 3 has a closure device 13 per opening 12, which is designed as a closure plug.

The sealing plug has a sealing element 14, in particular an O-ring, for resting against the outside of the piston element 3.

For the sake of completeness, it should be mentioned that only one opening 12 in the piston element 3 can be sufficient to insert a large number of connecting elements 23 through the piston element 3. Thus, the housing element 2 can be connected to the hub element 9, whereby a connection to the drive shaft 30 can be adjusted. All that is required for this is a rotation of the piston element 3 relative to the housing element 2 or hub element 9.

FIG. 3 shows a sectional view of a clutch assembly 20 with an actuator device 1 according to a second exemplary embodiment, the clutch assembly 20 not being shown again for better explanation.

With regard to the clutch assembly 20, for the sake of simplicity and brevity, reference is made to the explanations relating to the first exemplary embodiment, which can be used analogously here.

This also applies to the actuator device 1, but the differences between the first and second exemplary embodiments will be discussed below.

First of all, when comparing FIGS. 1, 2A, 2B and 3, it should be noted that FIG. 3 likewise shows an actuator device 1 for a clutch assembly 20 of a vehicle.

The actuator device 1 according to FIG. 3, like the actuator device 1 according to FIG. 1, has a housing element 2 for connecting to the drive shaft 30, a piston element 3 for moving a pressure plate 21 of a clutch assembly 20 and a pressure chamber 4.

In addition, the actuator device 1 has a non-destructive detachable and attachable Ver connecting device 5 to connect the housing element 2 to the drive shaft 30. the. Here, too, the actuator device 1 and a drive shaft 30 ideally share a common axis of rotation D.

In contrast to the first exemplary embodiment, the connecting section 6 has a single passage 8 for a connecting element 23, which connects the housing element 2 to the drive shaft 30 in the axial direction A. As a result, the housing element 2 can be secured in the axial direction A on the drive shaft 30.

As Figure 3 shows, the connecting portion 6 extends in the axial direction A and has a shape similar to a double-T beam in cross section along the axis of rotation D, the axis of the passage 8 being arranged congruently to the axis of rotation D of the piston element 3.

A splined shaft profile, polygonal profile, toothed shaft profile or serration is formed on the outer circumferential surface AM of the connecting section 6, which can be connected to a corresponding mating profile in order to connect the housing element 2 to the drive shaft 30 via a non-positive and / or positive connection .

It is also possible that the outer jacket surface AM is designed without a profile for a frictional connection in order to connect the housing element 2 to the drive shaft 30 via a force-fitting connection.

Furthermore, FIG. 3 shows that the hub element 9 is designed as a hollow cylinder and has a splined shaft profile, polygonal profile, toothed shaft profile or serration on its inner lateral surface IM in order to connect the housing element 2 to the drive shaft 30 via a non-positive and / or positive connection .

Here, too, it is possible that the inner jacket surface IM is designed without a profile for a frictional connection in order to connect the housing element 2 to the drive shaft 30 via a force-locking connection.

In summary, the hub element 9 is connected on its inner lateral surface IM to the housing element 2, in particular to the outer lateral surface AM of the connec tion section 6 of the connecting device 5.

Figures 1 to 3 are briefly summarized again below. It can be seen from the figures that the actuator housing element 2 can be fastened to a hub element 9 (FIGS. 1 to 2B) or directly to a drive shaft 30 (FIG. 3) by means of screws 23.

To seal the housing element 2 on the hub element 9, the O-ring or the sealing element 11 is attached between the housing element 2 and the hub element 9 (see FIGS. 1 to 2B).

The screws 23 or the connecting elements 23 are screwed on or unscrewed through the openings 12.

The connecting element 23 can be reached by pushing a tool W through an opening 12 (see FIG. 2B). These openings 12 are sealed by screwing on a closure device 13 or a closure plug 13 including O-rings 14 or sealing elements 14.

With the aid of the configuration presented above, the torque can be transmitted to a clutch disc 22 via the screws 23 / connecting elements 23. The same applies to FIG. 3, only a single opening 12 and a single screw 23 or a single connecting element 23 being used here.

Reference list

1 actuator device

2 housing element

3 piston element

4 printing room

5 connection device

6 connecting section

7 passage

8 pass

9 hub element

10 Establishing a connection

11 sealing element

12 opening

13 Locking device

14 sealing element

20 clutch assembly

21 pressure plate

22 clutch disc

23 connecting element

24 pressure element

25 pressure element

26 output element

30 drive shaft

D axis of rotation

A axial direction

IM jacket surface

AM jacket surface

W tool

Claims

1. Actuator device (1) for a clutch assembly (20) of a vehicle aufwei send:

- a housing element (2) for connection to a drive shaft (30),

- A piston element (3) for moving a pressure plate (21) of a coupling assembly (20), and

- A pressure chamber (4) between the housing element (2) and the Kolbenele element (3), which changes the distance between the housing element's (2) and piston element (3) by receiving or releasing fluid, whereby a pressure plate (21) of a clutch assembly (20) can be moved towards or away from a clutch disc (22), characterized in that

- The actuator device (1) has a non-destructive detachable and attachable connec tion device (5) to connect the housing element (2) to a drive shaft (30).

2. Actuator device according to claim 1,

- wherein the non-destructive detachable and attachable connecting device (5) has a connecting section (6) for the rotationally secure connection of the housing element (2) to a drive shaft (30), and

- The connecting section (6) being formed by the housing element (2).

3. actuator device according to claim 2,

- wherein the connecting portion (6) has at least one passage (7) for a connecting element (23) which in the axial direction (A) connects the housing element (2) with a drive shaft (30), whereby the housing element (2) in axial direction (A) on a drive shaft (30) can be secured.

4. actuator device according to claim 2,

- wherein the connecting portion (6) has a single passage (8) whose axis is congruent to the axis of rotation (D) of the piston element (3) angeord net, and

- With a splined shaft profile, polygonal profile, splined shaft profile or serration being formed on the outer jacket surface (AM) of the connecting section (6), which can be connected to a corresponding mating profile in order to connect the housing element (2) to a drive shaft (30) via a to connect non-positive and / or positive connection, and / or wherein the outer jacket surface (AM) is designed without a profile for a frictional connection to the housing element (2) with a drive shaft (30) via a non-positive and / or positive connection associate.

5. Actuator device according to one of the preceding claims,

- wherein the non-destructively detachable and attachable connecting device (5) has a hub element (9) for the rotationally secure connection of the housing element (2) to a drive shaft (30).

6. actuator device according to claim 5,

- The hub element (9) can be connected on its inner lateral surface (IM) to a drive shaft (30), and

- wherein the hub element (9) has at least one connection receptacle (10) for a connection element (23), which in the axial direction (A) the hous seelement (2) connects to the hub element (9), whereby the housing element (2) in axial direction (A) on a drive shaft (30) can be secured.

7. actuator device according to claim 5,

- The hub element (9) is designed as a hollow cylinder and has a splined shaft profile, polygonal profile, toothed shaft profile or serration on its inner outer surface (IM) to drive the housing element (2) with a drive shaft (30) via a power and / or positive connection to connect and / or wherein the inner jacket surface (IM) is designed without a profile for a frictional connection in order to connect the housing element (2) to a drive shaft (30) via a non-positive and / or positive connection.

8. Actuator device according to one of the preceding claims,

- The piston element (3) having at least one opening (12) through which a tool (W) including connecting element (23) can be inserted in order to release the housing element (2) from a drive shaft (30) or to fasten it to it.

9. Coupling assembly (20) of a vehicle having:

- As the input side, an actuator device (1) according to one of the preceding claims, connectable to a drive shaft (30),

- As the output side, a transmission member (22, 26), connectable to a gear beeing input side, the transmission member (22, 26) by releasable connec tion with the input side produces a torque transmission or breaks, and

- At least one connecting element (23), designed as a screw,

- Either the at least one connecting element (23) connects the housing element (2) to the hub element (9), or the housing element (2) can be connected to a drive shaft (30) with a single connecting element (23).

10. coupling assembly (20) according to claim 9,

- wherein the actuator device (1) further comprises a pressure element (24), a pressure plate (21) and a movement transmission element (25) which connects the pressure plate (21) to the piston element (3) of the actuator device (1), so that a displacement of the Piston element (3) causes a displacement of the movement transmission element (25) and thus the pressure plate (21), - wherein the pressing element (24) is fastened on the outside of the housing element (2) of the actuator device (1) and is arranged in relation to the pressure plate (21) in such a way that it presses a clutch disc (22) onto the pressing element (24),

- wherein the transmission member (22, 26) comprises an output element (26) and a clutch disc (22), which is located between the pressure element (24) and the pressure plate

(21) is arranged and ver bindable to a gear via the output element (26).