DE102019101958A1 - Clutch actuation device and clutch device - Google Patents

Abstract

The invention relates to a clutch actuation device and a clutch device with at least one clutch actuation device according to the invention. A clutch actuation device (1) comprises a piston (10) and an adjusting ring (20), one of the two components each having several contact elements (11) distributed over a circumference, which in the axial direction each have a different distance from the respective component body (65) and consequently define different axial contact positions, and the respective other component distributed over a circumference in each case at least one support element (21) for resting on a contact element (11) and in the circumferential direction adjacent to it has a recess (22) which, when the two components are in axial contact with one another in an axial contact position, prevents the two components from axial contact with the contact position at a greater distance from the component body (65) suggested Agenen clutch actuation device and the clutch device equipped with it, devices are made available which enable inexpensive and simple assembly with a long service life.

Description

The invention relates to a clutch actuation device and a clutch device with at least one clutch actuation device according to the invention.

Actuating devices, in particular clutch actuating devices, are known from the prior art in which, due to chains of individual tolerances, the total tolerance is too high to ensure the long-term functionality of a connected clutch device. Accordingly, it must be ensured that the tolerances that occur are at least partially compensated for.

Compensating washers of various thicknesses are provided for this so that, depending on the tolerance requirements, a corresponding washer can be inserted during assembly. Usually e.g. five different thick shims are produced for a clutch actuation device in order to be able to undertake an ideal tolerance compensation for every manufactured clutch actuation device.

However, this increased variety of parts results in increased costs.

Proceeding from this, the present invention is based on the object of providing a clutch actuation device and a clutch device equipped therewith, which implement inexpensive and simple assembly with a long service life.

The object is achieved by the clutch actuation device according to the invention according to claim 1. Advantageous refinements of the clutch actuation device are specified in subclaims 2 to 8. In addition, a clutch device which has a clutch actuation device according to the invention is made available according to claim 9.

An advantageous embodiment of the coupling device is specified in dependent claim 10.

The features of the claims can be combined in any technically meaningful manner, in which case the explanations from the following description and features from the figures, which include supplementary embodiments of the invention, can also be used.

The terms “axial”, “radial”, “circumference” and “circumferential direction” always relate in the context of the present invention to the central axis of symmetry of the clutch actuation device or the axis of rotation of the clutch device.

The invention relates to a clutch actuation device, comprising an annular piston mounted in an annular hollow cylinder and an adjusting ring for axial contact with the piston. One of the two components, piston and adjusting ring, has a number of contact elements distributed over a circumference in three sectors, each of which has a different spacing from the respective component body in the axial direction and consequently defines different axial contact positions. The other component in each case has at least one support element distributed over a circumference in three sectors for resting on a contact element as well as a recess adjacent to it in the circumferential direction, which when the two components are in axial contact with one another at an axial contact position which is a smaller distance from the Has body as at least one adjacent axial contact position, which is at a greater distance from the component body, prevents the axial contact of the two components at the contact position which is at a greater distance from the component body.

This ensures that the component with the support elements can also be positioned at an axial position in relation to the other component, which has a smaller axial distance from the component body than another realizable contact position with a higher axial distance from the component body .

The circumference is not necessarily to be understood as an outer circumference or an inner circumference, but rather as a circular path that is concentric with respect to a central axis of symmetry.

A recess can also have an elongated extension running in the circumferential direction or be designed essentially as a slot, so that several different contact elements, in particular several different contact elements of different axial contact positions, can reach through the recess.

As a result, the axial distance between the piston and the adjusting ring can be set as a function of the selection of the respective contact element.

The piston can be designed as a plastic piston.

A sector or also circular sector corresponds to a partial area of a circular area or circular ring area of an end face or axial side of the annular piston or of the adjusting ring, which is delimited by a circular arc and two circular radii becomes. The circular radii run starting from a respective central axis of symmetry of the relevant component.

In particular, it can be provided that the three sectors are of the same size, that is to say have the same partial circumference of a circle.

Furthermore, it can be provided that at least one of the two components piston and adjusting ring distributed over a circumference in more than three sectors each have several contact elements or at least one contact element.

According to a further aspect of the invention, more than two contact elements, in particular more than three contact elements, are arranged in a respective sector, with at least n-1 cutouts being present in the other component for each sector with n contact elements.

For this, the contact elements on one of the two components and the support elements and the recesses on the other component must be arranged in the same angular positions.

In particular, it should be provided that the n contact elements per sector each have different distances from the respective component body.

In a simple and stable embodiment of the invention, the clutch actuation device has a position securing device for securing the positions of the two components piston and adjusting ring in the circumferential direction to one another, the position securing device having a first securing element on one of the two components piston and adjusting ring and a second securing element on the other component Has securing element and the first securing element and the second securing element in a cross-section in the circumferential plane at least partially abut one another or can be brought into abutment so that a relative movement of the two components to one another in the circumferential direction can be blocked.

It can be provided that the first securing element and the second securing element are designed in a complementary manner to one another.

Furthermore, each of the three sectors on one component can have a first securing element and each of the three sectors on the other component can have a second securing element, so that within each sector a relative movement of the two components to one another in the circumferential direction can be blocked.

In a supplementary embodiment, the first securing element can be a pin arranged or formed on an axial end face of one of the two components and the second securing element can be a recess into which the pin engages axially.

The pin can be designed essentially similar to a contact element, but the pin does not define an axial contact position for a contact element.

It must be ensured in particular that, provided that the cutouts formed by the component having the contact element and the cutouts extend essentially in the same plane on which the central axis of symmetry is perpendicular, the pin extends further in the axial direction from the component. Body extends away as the contact element, which defines an axial contact position with the greatest distance from the component body, so that even in this most distant contact position a relative movement of the two components to one another in the circumferential direction is blocked.

According to a further advantageous embodiment, the contact elements in all three sectors, which each have the same axial distance from the respective component body, have the same angular positions with respect to a respective sector start.

The beginning of the sector is therefore the ray that starts from the central axis of symmetry or the angle origin, and that intersects the circumference on which the elements mentioned are located, and from which the respective angle is to be determined.

In addition, the object according to the invention is preferably realized in such a way that the angle of the recesses to one another in a respective sector corresponds to at least the greatest common divisor of the angle of the contact elements in the respective sector to one another.

This relates to corresponding sectors in terms of the order of the sectors on the perimeter.

According to a further embodiment, the support element is designed as a flat area of the respective component.

In particular, it can be provided that the component implemented with the support element is the adjustment ring, the support element being an unstepped area in the adjustment ring.

In one embodiment according to the invention, it is provided that one of the contact elements in a respective sector is implemented by a flat frontal area of the respective component.

In particular, this contact element can be configured by an unprofiled end face of the piston.

According to a further aspect of the invention, the component with the contact element is the piston and the component with the contact element is the adjusting ring.

The clutch actuation device according to the invention has the advantage that assembly can be implemented in a simple manner and with a low investment requirement.

The invention offers the possibility of realizing different axial distances between the component bodies of the two components piston and adjusting ring by means of the different, defined axial contact positions of the contact elements and the contact elements that can be arranged on them.

By using only these components to realize the different axial distances, a number of elements and thus complexity in the higher-level system can be kept as low as possible and simple assembly can be realized.

Furthermore, a clutch device is provided according to the invention which has a clutch actuation device according to the invention.

In one embodiment of the coupling device, the coupling device comprises a bearing retaining ring, which is mechanically connected to the piston and is configured to limit a movement of the adjusting ring in relation to the piston in the axial direction, the bearing retaining ring having an axial play in the mechanical connection to the piston having, wherein the first locking element designed pin is designed to be axially long such that it has a greater axial length than the axial play.

Due to the design of the clutch actuation device according to the invention, play in the axial direction affected by these tolerance chains is largely eliminated, so that the coupling device equipped with the clutch actuation device can be actuated largely free of axial play, and thus an intended actuation point of the coupling device can essentially be implemented.

• 1 : ein Ausschnitt einer stirnseitigen, perspektivischen Ansicht eines Kolbens einer erfindungsgemäßen Kupplungsbetätigungseinrichtung,
• 2 : verschiedene Schnitte des Kolbens und eines Verstellrings in unterschiedlichen axialen Anlagepositionen,
• 3: der Verstellring und der Kolben in perspektivischer Ansicht,
• 4 : ein Ausschnitt der Kupplungsbetätigungseinrichtung und
• 5 : ein Ausschnitt einer Kupplungseinrichtung mit der Kupplungsbetätigungseinrichtung.

The invention described above is explained in detail below against the relevant technical background with reference to the accompanying drawings, which show preferred embodiments. The invention is in no way restricted by the purely schematic drawings, it being noted that the exemplary embodiments shown in the drawings are not restricted to the dimensions shown. It is shown in

• 1 : a section of a front, perspective view of a piston of a clutch actuation device according to the invention,
• 2 : different cuts of the piston and an adjusting ring in different axial contact positions,
• 3 : the adjusting ring and the piston in perspective view,
• 4th : a section of the clutch actuation device and
• 5 : a section of a clutch device with the clutch actuation device.

In 1 is a section of a piston 10 a clutch actuation device according to the invention 1 shown.

The piston 10 is ring-shaped, with on its axial face 15th several plant elements 11 are arranged in the form of pins extending in the axial direction.

The investment elements 11 and one adjacent to a contact element in the circumferential direction 11 developed level frontal area 12 define different axial contact positions. The axial contact positions differ from one another in terms of their spacing in the axial direction from the end face 15th of the piston 10 .

In the circumferential direction, starting from the flat frontal area 12 , which is also an investment element here 11 represents, the axial contact positions move away increasingly from the end face 15th of the piston 10 in the axial direction.

Through the first investment element 30th with the flat frontal area 12 a first axial contact position is defined on a second contact element adjacent to it in the circumferential direction 31 a second axial contact position is defined, further adjacent in the circumferential direction on a further, third contact element 32 a third axial contact position is defined, further adjacent in the circumferential direction on a further, fourth contact element 33 a fourth axial contact position is defined and further adjacent in the circumferential direction on another, fifth investment element 34 a fifth axial contact position is defined.

Again further in the circumferential direction, next to the contact element defining the fifth axial contact position 35 , is a first securing element also designed as a pin 41 a position assurance device 40 arranged. The position assurance device 40 serves to secure the positions of the two piston components 10 and adjusting ring (not shown here) in the circumferential direction to one another. The first security element 41 extends further in the axial direction than any contact element 11 and is essentially identical to a contact element 11 formed, but does not define an axial contact position, but only enables the fixation in the peripheral position.

The investment elements 30th , 31 , 32 , 33 , 34 and the first securing element 41 the position assurance device 40 are in regular angular positions to each other on the face 15th of the piston 10 arranged.

In 2 are now, complementary to 1 , different sections of the piston 10 out 1 and one on the piston 10 arranged adjusting ring 20th shown in the different axial contact positions.

The sections show that with the different contact positions there are different distances between the front side 15th of the piston 10 and the first axial side 24 of the adjustment ring 20th can be realized, or that between a component body 65 of the piston 10 and the first axial side 24 of the adjustment ring 20th to realize different distances.

The adjusting ring forms this 20th a flat area 23 on its first axial side 24 from which a support element 21st represents, wherein the support element 21st in the axial direction on the contact elements 11 is arranged.

So is in 2 shown that the adjusting ring 20th is in a first axial contact position when the adjusting ring 20th on the flat frontal area 12 of the piston 10 and thus on the first contact element 30th is applied. The adjusting ring is in a second axial contact position 20th when he is on the second contact element 31 rests. The adjusting ring is located accordingly 20th in a third axial contact position on the third contact element 32 , in a fourth axial contact position on the fourth contact element 33 and in a fifth axial contact position on the fifth contact element 34 on.

In addition to the 1 and 2 shows 3 the piston components 10 and adjusting ring 20th in a perspective view.

The piston 10 and the adjustment ring 20th correspond to the statements in the description 1 or to 2 , where in 3 you can still see that the adjustment ring 20th axially extending recesses 22nd includes.

The adjustment ring 20th is with its support element 21st on the flat face area (not visible here) of the piston 10 arranged, the first contact element 30th forms, so that a first axial contact position of the piston 10 and adjusting ring 20th is realized. The other investment elements 31 , 32 , 33 , 34 are in the recesses 22nd of the adjustment ring 20th arranged, the recesses 22nd here as in the axial direction by the adjusting ring 20th through holes are designed and in the same angular positions to one another as the contact elements 11 , are arranged.

This ensures that the other contact elements 31, 32, 33, 34 of the piston 10 no support of the adjustment ring 20th cause its axial position in relation to the piston 10 only by the height of the first contact element 30th is defined.

It can be seen from this that when the adjusting ring is turned 20th around the central axis of symmetry 3 the support element 21st of the adjustment ring 20th to one of the other system elements 11 can be created so that the different axial contact positions shown in 2 shown can be adjusted.

A second securing element is also shown 42 the position assurance device 40 which as a recess 22nd is designed so that it is similar to a contact element 11 trained first fuse element 41 in the axial direction in the second securing element 42 engages and thereby securing the positions of the two components piston10 and adjusting ring 20th realized in the circumferential direction to each other.

Out 3 also becomes the ring shape of the adjustment ring 20th and the annular piston 10 clear. The circumference of the annular piston 10 or the adjustment ring 20th can be divided into three sectors 70, 71, 72, which on a respective component of the same size around a central axis of symmetry 3 the clutch actuator 1 are trained. A section of the piston defined as sector 70, 71, 72 10 comprises five investment elements 30th , 31 , 32 , 33 , 34 , which define a first to fifth axial contact position, and a first securing element 41 of the Position assurance device 40 . A section of the adjusting ring defined as sector 70, 71, 72 20th each includes a support element 21st as well as four recesses 22nd that the plant elements 30th , 31 , 32 , 33 , 34 are assigned, and a second securing element also designed as a recess 42 the position assurance device 40 , which in angular positions corresponding to the angular positions of the system elements 30th , 31 , 32 , 33 , 34 as well as the first securing element 41 are arranged. Due to the identical design of the sectors 70, 71, 72 of the piston 10 or the adjustment ring 20th can be any support element 21st of each sector 70, 71, 72 of the adjusting ring 20th on every investment element 11 of each sector 70, 71, 72 of the piston 10 be arranged, what a different setting of the axial distance between the adjusting ring with small steps 20th and piston 10 and thus considerably shortens the assembly time.

Also in 3 you can see attacks 13th , which on a radial outside 16 of the piston 10 are arranged and extend substantially in the radial direction. The attacks 13th are regularly spaced from one another on a radial outside 16 arranged distributed on the circumference.

In 4th a section of the clutch actuation device is shown 1 . The cut piston can be seen 10 and the cut adjustment ring 20th , similar to the illustrations 2 and essentially equivalent in structure to in 3 illustrated situation in which the adjusting ring 20th on the first contact element 30th is applied.

The in 3 also shown stop 13th on the radial outside 16 of the piston 10 is here at a front end of an annular hollow cylinder 64 which can be seen in sections. Furthermore is on the radial outside 16 of the piston 10 a safety edge 14th formed, which extends in the radial direction radially outward.

A bearing retaining ring is also shown 50 that is on the second axial side 25th of the adjustment ring 20th is applied, on which the adjusting ring 20th opposite axial side of the bearing retaining ring 50 at this an input element 55 of an engagement bearing 54 is created. The storage ring 50 also extends in some areas radially outside over the radial outside 16 of the piston 10 , the bearing retaining ring 50 with a storage ring hook 51 comprises, which is axially adjacent next to the securing projection 14th of the piston 10 is arranged. The storage ring hook 51 is adjacent to the stop in the circumferential direction 13th arranged. Between the bearing retaining ring hook 51 and the locking tab 14th there is axial play 52 realized with which an axial displacement of the bearing retaining ring 50 in relation to the face 15th of the piston 10 with a corresponding variation of the axial distance of the adjusting ring 20th to the piston 10 is made possible. The storage ring 50 is designed in such a way that with axial contact of the bearing retaining ring 50 on the adjustment ring 20th the storage ring hook 51 always axially behind the locking protrusion 14th engages to prevent accidental removal of the bearing retainer ring 50 from the adjustment ring 20th to prevent. The length of the extension of the bearing retainer ring hook 51 in the axial direction and thus the axial length of the axial play 52 is chosen so that it is no longer in the axial direction than the axial extent of the first securing element designed as a pin 41 the position assurance device 40 , so that after assembly an axial extension of the first securing element 41 from the second fuse element 42 is not possible and thus the piston 10 and the adjustment ring 20th are fixed to each other in the circumferential direction, and also by the bearing retaining ring 50 are held together in the radial direction. Thus, after assembly, the adjustment ring is essentially in the axial position 20th in relation to the piston 10 and the positions of the two components are secured to one another in the circumferential direction.

5 shows a section of a coupling device 2 with the clutch actuation device according to the invention 1 .

The clutch actuation device shown 1 and their components pistons 10 and adjusting ring 20th are identical to those in the 1 to 3 illustrated embodiments configured. The 5 corresponds essentially to a more extensive presentation of the subject matter of 4th .

The central axis of symmetry 3 the clutch actuator 1 corresponds to the axis of rotation 5 the coupling device 2 .

The clutch actuator 1 includes an actuator housing 61 , which in one section the annular hollow cylinder 64 forms in which the piston 10 Is slidably arranged. The actuator housing 61 is on a flange 62 arranged. On the adjustment ring 20th facing away from the axial side of the piston 10 is a sealing element on this 63 arranged so that the annular hollow cylinder 64 fluidically through the sealing element 63 is closed.

The flange 62 is in the axial direction on a transmission housing 60 arranged and firmly connected to this.

There is also a disc spring 53 between storage ring 50 and the input element 55 of the engagement bearing 54 arranged such that the input element 55 of the engagement bearing 54 firmly against the bearing retaining ring 50 is axially braced.

The engagement bearing 54 is with a first partial coupling 57 a double clutch 56 connected.

In addition, the coupling device comprises 2 another clutch actuator 4th as well as another engagement bearing 59 , which with a second partial coupling 58 the double clutch 56 connected is.

By means of the two clutch actuation devices 1 , 4th is thus an actuation of the partial clutches 57 , 58 the double clutch 56 realizable.

For example, the first partial coupling 57 to actuate the piston 10 Shifted in the axial direction by a defined distance so that an actuation point is reached and the first partial clutch 57 is operated. If tolerances occur in the axial direction in elements such as the gearbox housing 60 , Actuator housing 61 or flange 62 , the piston can now 10 with its investment elements 11 and the adjustment ring 20th with its support elements 21st and recesses 22nd can be used to achieve an axial contact position that compensates for these axial tolerances.

With the clutch actuation device proposed here and the clutch device equipped with it, devices are made available which enable inexpensive and simple assembly with a long service life.

List of reference symbols

1

Clutch actuation device

2

Coupling device

3

central axis of symmetry

4th

further clutch actuation device

5

Axis of rotation of the coupling device

10

piston

11

Investment element

12

level frontal area

13

attack

14th

Safety tab

15th

Face of the piston

16

radial outside of the piston

20th

Adjustment ring

21st

Support element

22nd

Recess

23

flat area

24

first axial side of the adjusting ring

25th

second axial side of the adjusting ring

30th

first investment element

31

second contact element

32

third investment element

33

fourth investment element

34

fifth investment element

40

Position assurance device

41

first securing element

42

second securing element

50

Bearing ring

51

Storage clasp

52

axial play

53

Disc spring

54

Engagement bearing

55

Input element of the engagement bearing

56

Double coupling

57

first partial coupling

58

second partial coupling

59

further engagement bearing

60

Gear housing

61

Actuator housing

62

flange

63

Sealing element

64

annular hollow cylinder

65

Component body

70

first sector

71

second sector

72

third sector

Claims (10)

Clutch actuating device (1), comprising an annular piston (10) mounted in an annular hollow cylinder (64) and an adjusting ring (20) for axial contact with the piston (10), one of the two components being the piston (10) and adjusting ring (20) a circumference distributed in three sectors (70, 71, 72) each has a plurality of contact elements (11), which in the axial direction each have a different distance from the respective component body (65) and accordingly define different axial contact positions, and the respective other component on a circumference distributed in three sectors (70, 71, 72) each at least one Support element (21) for resting on a contact element (11) and in the circumferential direction adjacent to it has a recess (22) which, when the two components are in axial contact with one another, at an axial contact position (30, 31, 32, 33, 34), the one has a smaller distance to the component body (65) than at least one adjacent axial contact position which has a greater distance from the component body (65), the axial contact of the two components at the contact position has a greater distance to the component body (65) has prevented. Clutch actuation device (1) according to Claim 1 , characterized in that more than two contact elements (11) are arranged in a respective sector (70, 71, 72), in particular more than three contact elements (11) are arranged, each sector (70, 71, 72) with n contact elements ( 11) at least n-1 recesses (22) are present in the respective other component. Clutch actuator (1) according to one of the Claims 1 and 2 , characterized in that the clutch actuation device (1) has a position securing device (40) for securing the positions of the two components piston (10) and adjusting ring (20) in the circumferential direction, the position securing device (40) on one of the two components piston (10) ) and adjusting ring (20) has a first securing element (41) and has a second securing element (42) on the respective other component and the first securing element (41) and the second securing element (42) in a cross section in the circumferential plane at least partially abut one another or can be brought into contact with one another, so that a relative movement of the two components to one another in the circumferential direction can be blocked with them. Clutch actuating device (1) according to one of the preceding claims, characterized in that in all three sectors (70, 71, 72) the contact elements (11), which each have the same axial distance from the respective component body (65), with respect to have the same angular positions at each sector start. Clutch actuator (1) according to one of the Claims 2 to 6th , characterized in that the angle of the recesses (22) to one another in a respective sector (70, 71, 72) corresponds to at least the greatest common divisor of the angle of the contact elements (11) in the respective sector (70, 71, 72) to one another. Clutch actuating device (1) according to one of the preceding claims, characterized in that the support element (21) is implemented by a flat area (23) of the respective component. Clutch actuating device (1) according to one of the preceding claims, characterized in that one of the contact elements (11) in a respective sector (70, 71, 72) is implemented by a flat frontal area (12) of the respective component. Clutch actuating device (1) according to one of the preceding claims, characterized in that the component with the contact element (11) is the piston (10) and the component with the contact element (21) is the adjusting ring (20). Clutch device (2), comprising at least one clutch actuating device (1) according to one of the Claims 1 to 8th . Coupling device (2) after Claim 9 , characterized in that the coupling device (2) comprises a bearing retaining ring (50) which is mechanically connected to the piston (10) and is set up to prevent movement of the adjusting ring (20) in the axial direction, the bearing retaining ring (50 ) has an axial play (52) in the mechanical connection to the piston (10), the pin designed as the first securing element (41) being of the type axially long so that it has a greater axial length than the axial play (52) .

Images