DE102017107986A1 - Friction clutch arrangement for a motor vehicle - Google Patents

Abstract

The invention relates to a friction clutch assembly for a motor vehicle, for transmitting torque from a drive shaft to an output shaft having a common axis of rotation, at least comprising a drive shaft and an output shaft and a friction clutch, the at least- an outer plate carrier, with the drive shaft and with an inner plate carrier, which is connected in a torque-locking manner with the output shaft and with at least one inner plate, comprises a plate spring and a support spring, the plate spring for connecting the plates in a radial direction outside a first Has force edge and can be actuated via in the radial direction inwardly arranged plate spring tongue ends via an actuating device; wherein the plate spring is fixed in the radial direction between the force edge and the plate spring tongue ends against an axial direction by a disc spring bearing, wherein the disc spring bearing is formed at least by the support spring, wherein the support spring is biased by a threaded nut.

Description

The invention relates to a friction clutch assembly for a motor vehicle, for the switchable transmission of torque from a drive shaft to an output shaft having a common axis of rotation. The friction clutch arrangement is provided in particular for coupling a crankshaft of an automobile engine with at least one transmission input shaft of a motor vehicle transmission. The friction clutch arrangement can be used in particular as a (wet, ie operated in an oil bath) friction clutch arrangement for a motorcycle.

From the WO 2013/000455 A1 a friction clutch is known, in which case a diaphragm spring bearing a diaphragm spring is realized via a support disk. The support disk is connected via a bayonet lock with the friction clutch. For an exchange of the slats of the friction clutch, a release of the support disk is necessary. The bayonet catch can only be removed with a special tool.

Furthermore, an exact tuning of the individual parts of the friction clutch is required by the use of the support disk in order to achieve a fixation of the plate spring with respect to the axial direction. For this, tolerances of the individual parts must be strictly adhered to.

There is a continuing need to improve a friction clutch assembly and a friction clutch in terms of their function and handling.

It is the object of the invention to provide a friction clutch assembly and a friction clutch which is inexpensive to manufacture and easy to assemble or disassemble with conventional tools.

The object is achieved by a friction clutch assembly having the features of claim 1. Further advantageous embodiments of the invention are specified in the dependent formulated claims. The individually listed in the dependent formulated features can be combined in a technologically meaningful way and can define further embodiments of the invention. In addition, the features specified in the claims are specified and explained in more detail in the description, wherein further preferred embodiments of the invention are shown.

• - einen äußeren Lamellenträger, der mit der Antriebswelle und mit zumindest einer äußeren Lamelle drehmomentschlüssig verbunden ist,
• - einen inneren Lamellenträger, der mit der Abtriebswelle und mit zumindest einer inneren Lamelle drehmomentschlüssig verbunden ist,
• - eine Tellerfeder mit einer ersten Stirnseite und einer zweiten Stirnseite, die über eine Betätigungseinrichtung zum Ausbilden und Lösen einer kraftschlüssigen Verbindung zwischen der zumindest einen äußeren Lamelle und der zumindest einen inneren Lamelle betätigbar ist, wobei die Lamellen über die erste Stirnseite der Tellerfeder betätigbar sind; sowie
• - eine Stützfeder

umfasst. Die Tellerfeder weist zum Verbinden der Lamellen in einer radialen Richtung außen einen ersten Kraftrand auf und ist über in der radialen Richtung innen angeordnete Tellerfederzungenenden über die Betätigungseinrichtung betätigbar. Die Tellerfeder ist in der radialen Richtung zwischen dem Kraftrand und den Tellerfederzungenenden gegenüber einer axialen Richtung durch eine Tellerfederlagerung fixiert. Die Tellerfederlagerung ist auf der zweiten Stirnseite durch die Stützfeder gebildet. Die Stützfeder ist über eine Gewindemutter vorgespannt, wobei die Gewindemutter auf ein Ende der Abtriebswelle aufgeschraubt ist.It is proposed a friction clutch assembly for a motor vehicle, for transmitting a torque from a drive shaft to an output shaft having a common axis of rotation. The friction clutch arrangement comprises at least one drive shaft and one output shaft and a friction clutch, at least

• an outer plate carrier, which is connected in a torque-locking manner to the drive shaft and to at least one outer plate,
• an inner plate carrier, which is connected in a torque-locking manner to the output shaft and to at least one inner plate,
• - A plate spring having a first end face and a second end side, which is actuated via an actuating device for forming and releasing a frictional connection between the at least one outer fin and the at least one inner fin, wherein the lamellae are actuated via the first end face of the disc spring; such as
• - a support spring

includes. The plate spring has for connecting the slats in a radial direction on the outside a first force edge and is operable via in the radial direction inwardly arranged plate spring tongue ends via the actuating device. The plate spring is fixed in the radial direction between the force edge and the plate spring tongue ends with respect to an axial direction by a disc spring bearing. The diaphragm spring bearing is formed on the second end face by the support spring. The support spring is biased by a threaded nut, wherein the threaded nut is screwed onto one end of the output shaft.

Here it is particularly proposed to form the disc spring bearing at least on one side of the plate spring by a support spring. The support spring has a spring stiffness and can be biased by a threaded nut. The spring stiffness and elasticity of the support spring make it possible that smaller tolerances of the individual parts of the friction clutch assembly can be made. Furthermore, a threaded nut can be fixed with conventional tools and released again. The use of special tools is therefore not required.

In particular, the friction clutch is a multi-plate clutch having a plurality of outer plates and inner plates.

In particular, a torque of an automotive engine is transmitted via the drive shaft in the friction clutch assembly. The torque can be transmitted to the output shaft via a non-positive connection of the outer plates with the inner plates.

In particular, the inner plate carrier is connected via a hub part with the output shaft torque-locking. Preferably, the output shaft extends from the drive side of the friction clutch assembly along the axial direction through the hub portion and is there connected to the threaded nut.

In particular, the support spring is centered by the inner plate carrier relative to the axis of rotation.

In particular, the support spring is supported relative to the axial direction on a stop of a support ring, wherein the support ring is fixed by the threaded nut on the output shaft.

Preferably, the support ring is centered by the support spring with respect to the axis of rotation (in the radial direction).

In particular, an actuating bearing of the actuator is centered by the support ring relative to the axis of rotation. In particular, a rotational movement of the individual parts of the friction clutch coupling arrangement is decoupled from the actuating device via the actuating bearing.

The disk spring tongue ends are moved along the axial direction via the actuating device, so that the first force edge either transmits an actuating force to the disks and thus frictionally connects the disks with one another or the first force edge is moved away from the disks, so that a frictional connection of the disks is achieved ,

In particular, the support spring is annular and extends from the diaphragm spring bearing with a spring portion along the axial direction and following the spring portion with a second force edge along the radial direction toward an inner circumferential surface, wherein the support spring on the inner peripheral surface a plurality of Having centering tongues which extend along the radial direction through openings of the support ring, wherein the support spring is supported on the centering tongues on the stop of the support ring.

In particular, the support spring is centered over the spring portion on the inner plate carrier relative to the axis of rotation.

In particular, the support ring has an annular base body, via which the support ring with the threaded nut on the output shaft can be fastened, wherein the support ring extending from the base body along the axial direction with a wall portion; wherein the wall portion has a plurality of openings and forms the stop.

The main body can be such. B. be clamped over the threaded nut between the end of the output shaft and the threaded nut.

In particular, the wall portion extends from the base body along the axial direction to a termination, wherein the openings extend along the axial direction to the conclusion, wherein the wall portion is formed by a plurality of hook elements, which in the circumferential direction through the Openings are spaced from each other.

• - einen äußeren Lamellenträger, der mit zumindest einer äußeren Lamelle drehmomentschlüssig verbunden ist,
• - einen inneren Lamellenträger, der mit zumindest einer inneren Lamelle drehmomentschlüssig verbunden ist,
• - eine Tellerfeder mit einer ersten Stirnseite und einer zweiten Stirnseite, die über eine Betätigungseinrichtung zum Ausbilden und Lösen einer kraftschlüssigen Verbindung zwischen der zumindest einen äußeren Lamelle und der zumindest einen inneren Lamelle betätigbar ist, wobei die Lamellen über die erste Stirnseite der Tellerfeder betätigbar sind; sowie
• - eine Stützfeder.

It is further proposed a friction clutch for the friction clutch assembly described above. The friction clutch comprises at least:

• an outer plate carrier, which is connected in a torque-locking manner to at least one outer plate,
• an inner plate carrier, which is connected in a torque-locking manner to at least one inner plate,
• - A plate spring having a first end face and a second end side, which is actuated via an actuating device for forming and releasing a frictional connection between the at least one outer fin and the at least one inner fin, wherein the lamellae are actuated via the first end face of the disc spring; such as
• - a support spring.

The plate spring has for connecting the slats in a radial direction on the outside a first force edge and is operable via in the radial direction inwardly arranged plate spring tongue ends via the actuating device. The plate spring is fixed in the radial direction between the force edge and the plate spring tongue ends with respect to an axial direction by a disc spring bearing. The diaphragm spring bearing is formed on the second end face by the support spring. The support spring (only) can be prestressed by means of a threaded nut, wherein the threaded nut can be screwed onto one end of the output shaft.

The comments on the friction clutch arrangement also apply to the friction clutch and vice versa.

1. a) Bereitstellen einer Antriebswelle und einer Abtriebswelle;
2. b) Bereitstellen der vorstehend beschriebenen Reibungskupplung;
3. c) Anordnen der Reibungskupplung an der Antriebswelle und der Abtriebswelle;
4. d) Fixieren der Tellerfeder und Vorspannen der Stützfeder durch Befestigen der Gewindemutter an der Abtriebswelle.

There is further provided a method of assembling the above described ones Friction clutch arrangement proposed. The method comprises at least the following steps:

1. a) providing a drive shaft and an output shaft;
2. b) providing the friction clutch described above;
3. c) arranging the friction clutch on the drive shaft and the output shaft;
4. d) fixing the plate spring and biasing the support spring by attaching the threaded nut to the output shaft.

The comments on the friction clutch assembly and the friction clutch also apply to the method of assembly and vice versa.

The disassembly of the friction clutch or the changing of the slats takes place by loosening the threaded nut. With the threaded nut, the support spring (and, if present, the support ring) and then the plate spring can be removed so that the lamellae are accessible.

By way of precaution, it should be noted that the numerical terms used here ("first", "second",...) Primarily (only) serve to distinguish a plurality of similar objects, variables or processes, ie in particular no dependence and / or order of these objects, quantities or mandate processes to one another. If a dependency and / or order are required, this is explicitly stated here or it obviously results for the person skilled in the art when studying the concretely described embodiment.

• 1: eine perspektivische Ansicht einer bekannten Reibungskupplungsanordnung im Schnitt;
• 2: eine Seitenansicht einer Reibungskupplungsanordnung mit demontierter Gewindemutter;
• 3: eine Seitenansicht einer Reibungskupplungsanordnung mit montierter Gewindemutter;
• 4: eine perspektivische Ansicht eines Stützrings; und
• 5: eine perspektivische Ansicht einer Stützfeder.

The invention and the technical environment will be explained in more detail with reference to FIGS. It should be noted that the invention should not be limited by the embodiments shown. In particular, unless explicitly stated otherwise, it is also possible to extract partial aspects of the facts explained in the figures and to combine them with other components and findings from the present description and / or figures. In particular, it should be noted that the figures and in particular the illustrated proportions are only schematic. The same reference numerals designate the same objects, so that explanations of other figures can be used if necessary. Show it:

• 1 a perspective view of a known friction clutch assembly in section;
• 2 a side view of a friction clutch assembly with threaded nut removed;
• 3 a side view of a friction clutch assembly with threaded nut mounted;
• 4 a perspective view of a support ring; and
• 5 : a perspective view of a support spring.

1 shows a perspective view of a known friction clutch assembly 1 on average. The friction clutch arrangement 1 includes a drive shaft 2 and an output shaft 3 and a friction clutch 4 , The friction clutch 4 includes an outer disc carrier 6 that with the drive shaft 2 and with a plurality of outer fins 7 is connected torque-locking, an inner plate carrier 8th that with the output shaft 3 and with a plurality of inner fins 9 is connected torque-locking, a diaphragm spring 10 with a first face 11 and a second end face 12 that have an actuator 32 for forming and releasing a frictional connection between the outer fins 7 and the inner fins 9 is actuated or actuated, wherein the slats 7 . 9 over the first front side 11 the plate spring 10 are actuated or actuated and a support spring 13 , The plate spring 10 points to connect the slats 7 . 8th in a radial direction 14 outside a first force border 15 up and over in the radial direction 14 inside arranged plate spring tongue ends 16 via the actuating device 32 actuated. The plate spring 10 is in the radial direction 14 between the first force border 15 and the plate spring tongue ends 16 opposite to an axial direction 17 through a diaphragm spring bearing 18 fixed. The plate spring bearing 18 the plate spring 10 is via a support disk 37 realized. The support disk 37 is via a bayonet lock 38 with the inner plate carrier 8th the friction clutch 4 connected. For a replacement of the slats 7 . 9 the friction clutch 4 is a release of the support disk 37 necessary. The bayonet lock 38 is only solvable with a special tool.

2 shows a side view of a friction clutch assembly 1 with dismantled nut 19 , 3 shows a side view of a friction clutch assembly 1 with mounted nut 19 , The 2 and 3 will be described together below. The friction clutch arrangement 1 includes a drive shaft 2 and an output shaft 3 and a friction clutch 4 , The friction clutch 4 includes an outer disc carrier 6 that with the drive shaft 2 and with a plurality of outer fins 7 is connected torque-locking, an inner plate carrier 8th that with the output shaft 3 and with a plurality of inner fins 9 is connected torque-locking, a diaphragm spring 10 with a first face 11 and a second end face 12 that have an actuator 32 for forming and releasing a frictional connection between the outer fins 7 and the inner fins 9 is operable, with the slats 7 . 9 over the first front side 11 the plate spring 10 are actuated and a support spring 13 , The plate spring 10 points to connect the slats 7 . 8th in a radial direction 14 outside a first force border 15 up and over in the radial direction 14 inside arranged plate spring tongue ends 16 via the actuating device 32 actuated. The plate spring 10 is in the radial direction 14 between the first force border 15 and the plate spring tongue ends 16 opposite to an axial direction 17 through a diaphragm spring bearing 18 fixed. The plate spring bearing 18 is on the second front 12 through the support spring 13 educated. The support spring 13 is about a threaded nut 19 preloaded, with the threaded nut 19 to an end 20 the output shaft 3 can be screwed on or screwed on.

The plate spring bearing 18 is on one side of the plate spring 10 through a support spring 13 educated. The support spring 13 has a spring stiffness and is threaded through the nut 19 biased. The spring stiffness and elasticity of the support spring 13 allow it to tolerances of the individual parts of the friction clutch assembly 1 lower claims can be made. Furthermore, a threaded nut 19 fastened with conventional tools and released again. The use of special tools is therefore not required.

The inner plate carrier 8th is over a hub part 35 with the output shaft 3 connected torque-locking. The output shaft 3 extends from a drive side 36 the friction clutch assembly 1 along the axial direction 17 through the hub part 35 through and is there with the threaded nut 19 connectable.

The support spring 13 is through the inner plate carrier 8th opposite the axis of rotation 4 centered. The support spring 13 rests against the axial direction 17 at a stop 21 a support ring 22 off, with the support ring 22 through the threaded nut 19 on the output shaft 3 is attached. The support ring 22 is through the support spring 13 opposite the axis of rotation 4 (in the radial direction 14 ) centered.

An actuation bearing 23 the actuator 32 is through the support ring 22 opposite the axis of rotation 4 centered. About the actuation bearing 23 is a rotational movement of the items of the friction clutch assembly 1 from the actuator 32 decoupled.

About the actuator 32 the plate spring tongues are ending 16 along the axial direction 17 moved, leaving the first force 15 either an actuating force on the slats 7 . 9 transfers and thus the slats 7 . 9 mutually positively connects or the first force 15 from the slats 7 . 9 is moved away, so that a frictional connection of the slats 7 . 9 is solved.

The support spring 13 is designed annular and extends from the diaphragm spring bearing 18 with a spring section 24 along the axial direction 17 and following the spring section 24 with a second force border 25 along the radial direction 14 towards an inner peripheral surface 26 , wherein the support spring 13 on the inner peripheral surface 26 a plurality of centering tongues 27 which extends along the radial direction 14 through openings 28 of the support ring 22 extend, wherein the support spring 13 over the centering tongues 27 at the stop 21 of the support ring 22 supported. The support spring 13 is over the spring section 24 on the inner plate carrier 8th opposite the axis of rotation 4 centered.

The support ring 22 has an annular body 29 on, over which the support ring 22 with the threaded nut 19 on the output shaft 3 is fastened or secured, wherein the support ring 22 starting from the main body 29 along the axial direction 4 with a wall section 30 extends; the wall section 30 a plurality of openings 28 has and the stop 21 forms.

The main body 29 so can about the nut 19 between the end 20 the output shaft 3 and the nut 19 be trapped.

In the method of assembling the friction clutch assembly described above 1 Step a) comprises providing a drive shaft 2 and an output shaft 3 , Step b) comprises providing the friction clutch described above 5 , Step c) arranging the friction clutch 5 on the drive shaft 2 and the output shaft 3 , Step d) includes fixing the plate spring 10 and biasing the support spring 13 by attaching the threaded nut 19 on the output shaft 3 ,

Disassembly of the friction clutch 5 or changing the slats 7 . 9 done via the Loosen the threaded nut 19 , With the threaded nut 19 can the support spring 13 and the support ring 22 and then the plate spring 10 be removed, leaving the slats 7 . 9 are accessible.

4 shows a perspective view of a support ring 22 , The support ring 22 has an annular body 29 on, over which the support ring 22 with the threaded nut 19 on the output shaft 3 is fastened or attached (see 2 and 3 ), whereby the support ring 22 starting from the main body 29 along the axial direction 4 with a wall section 30 extends; the wall section 30 a plurality of openings 28 has and the stop 21 forms.

The main body 29 so can about the nut 19 between the end 20 the output shaft 3 and the nut 19 be trapped.

The wall section 30 extends from the base body 29 along the axial direction 17 to a degree 31 , with the openings 28 along the axial direction 17 until the conclusion 31 extend, wherein the wall portion 30 by a plurality of hook elements 33 is formed in the circumferential direction 34 through the openings 28 are arranged spaced from each other.

5 shows a perspective view of a support spring 13 , The support spring 13 is designed annular and extends from the diaphragm spring bearing 18 with a spring section 24 along the axial direction 17 , The spring section 24 is formed by a plurality of spring tongues in the circumferential direction 34 are arranged evenly distributed. Following the spring section 24 extends the support spring 13 with a second force border 25 along the radial direction 14 towards an inner peripheral surface 26 , wherein the support spring 13 on the inner peripheral surface 26 a plurality of centering tongues 27 which extends along the radial direction 14 through openings 28 of the support ring 22 extend, wherein the support spring 13 over the centering tongues 27 at the stop 21 of the support ring 22 supported. The support spring 13 is over the spring section 24 on the inner plate carrier 8th opposite the axis of rotation 4 centered (see 2 and 3 ).

LIST OF REFERENCE NUMBERS

1

Friction clutch assembly

2

drive shaft

3

output shaft

4

axis of rotation

5

friction clutch

6

outer plate carrier

7

outer lamella

8th

inner plate carrier

9

inner lamella

10

Belleville spring

11

first end face

12

second end face

13

support spring

14

radial direction

15

first force border

16

Belleville spring tongue end

17

axial direction

18

Disk spring storage

19

threaded nut

20

The End

21

attack

22

support ring

23

operation seat

24

spring section

25

second force border

26

inner peripheral surface

27

centering tongue

28

opening

29

body

30

wall section

31

graduation

32

actuator

33

hook elements

34

circumferentially

35

hub part

36

driving side

37

support disk

38

bayonet catch

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• WO 2013/000455 A1 [0002]

Claims (10)

A friction clutch arrangement (1) for a motor vehicle, for transmitting a torque from a drive shaft (2) to an output shaft (3) having a common axis of rotation (4), at least comprising a drive shaft (2) and an output shaft (3) and a friction clutch (5), which at least an outer plate carrier (6), which is connected in a torque-locking manner to the drive shaft (2) and to at least one outer plate (7), an inner plate carrier (8) which is connected in a torque-locking manner to the output shaft (3) and to at least one inner plate (9), - A plate spring (10) having a first end face (11) and a second end face (12) via an actuating device (32) for forming and releasing a frictional connection between the at least one outer fin (7) and the at least one inner fin (9) is operable, wherein the lamellae (7, 9) via the first end face (11) of the plate spring (10) are actuated; such as - A support spring (13), wherein the plate spring (10) for connecting the slats (7, 9) in a radial direction (14) outside a first force edge (15) and in the radial direction (14) arranged inside the plate spring tongues (16) via the actuating device (32) is operable; wherein the plate spring (10) in the radial direction (14) between the first force edge (15) and the plate spring tongue ends (16) relative to an axial direction (17) by a disc spring bearing (18) is fixed, wherein the plate spring bearing (18) on the second end face (12) is formed by the support spring (13), wherein the support spring (13) via a threaded nut (19) is biased, wherein the threaded nut (19) on one end (20) of the output shaft (3) is screwed. Friction clutch assembly (1) according to Claim 1 , wherein the support spring (13) through the inner disc carrier (8) relative to the axis of rotation (4) is arranged centered. Friction clutch assembly (1) according to one of the preceding claims, wherein the support spring (13) relative to the axial direction (17) on a stop (21) of a support ring (22) is supported, wherein the support ring (22) through the threaded nut (19) the output shaft (3) is fixed. Friction clutch assembly (1) according to Claim 3 , wherein the support ring (22) by the support spring (13) relative to the axis of rotation (4) is arranged centered. Friction clutch arrangement (1) according to one of the preceding Claims 3 and 4 in that an actuating bearing (23) of the actuating device (32) is centered by the support ring (22) with respect to the axis of rotation (4). Friction clutch arrangement (1) according to one of the preceding Claims 3 to 5 in which the support spring (13) is of annular design and extends from the diaphragm spring bearing (18) with a spring section (24) along the axial direction (17) and adjoins the spring section (24) with a second force edge (25). extending along the radial direction (14) to an inner peripheral surface (26), the support spring (13) having on the inner peripheral surface (26) a plurality of centering tongues (27) extending through openings along the radial direction (14) (28) of the support ring (22), wherein the support spring (13) via the centering tongues (27) on the stop (21) of the support ring (22) is supported. Friction clutch arrangement (1) according to one of the preceding Claims 3 to 6 , wherein the support ring (22) has an annular base body (29), via which the support ring (22) with the threaded nut (19) on the output shaft (3) can be fastened, wherein the support ring (22) starting from the base body (29 ) extends along the axial direction (17) with a wall portion (30); wherein the wall portion (30) has a plurality of openings (28) and forms the stop (21). Friction clutch assembly (1) according to Claim 7 wherein the wall portion (30) extends from the base body (29) along the axial direction (17) to a termination (31), the openings (28) extending along the axial direction (17) to the termination (31), wherein the wall portion (30) is formed by a plurality of hook members (33) spaced apart in a circumferential direction (34) through the openings (28). Friction clutch (5) for a friction clutch arrangement (1) according to one of the preceding claims, comprising at least: - an outer plate carrier (6), which is torque-connected to at least one outer plate (7), - an inner plate carrier (8), with a plate spring (10) having a first end face (11) and a second end face (12), which via an actuating device (32) for forming and releasing a frictional connection between the at least one outer lamella (7) and the at least one inner lamella (9) is operable, wherein the lamellae (7, 9) via the first end face (11) of the plate spring (10) are actuated; and - a support spring (13); wherein the plate spring (10) for connecting the slats (7, 9) in a radial Direction (14) outside a first force edge (15) and in the radial direction (14) arranged inside plate spring tongue ends (16) via the actuating device (32) is actuated; wherein the plate spring (10) in the radial direction (14) between the first force edge (15) and the plate spring tongue ends (16) relative to an axial direction (17) by a disc spring bearing (18) is fixed, wherein the plate spring bearing (18) on the second end face (12) by the support spring (13) is formed, wherein the support spring (13) via a threaded nut (19) is prestressed, wherein the threaded nut (19) on one end (20) of the output shaft (3) can be screwed Method for assembling a friction coupling arrangement (1) according to one of the preceding Claims 1 to 8th at least comprising the following steps: a) providing a drive shaft (2) and an output shaft (3); b) providing a friction clutch (5) according to Claim 9 ; c) arranging the friction clutch (5) on the drive shaft (2) and the output shaft (3); d) fixing the plate spring (10) and biasing the support spring (13) by attaching the threaded nut (19) on the output shaft (3).

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