DE102020116180A1 - Torque transfer device equipped with a torque limiter - Google Patents

Abstract

The invention relates to a torque transmission device (1) with a torque limiter, wherein the torque limiter: - an input element (4); - an output element (6); - a pressure element (5) which is arranged around one of the input element (4 ) and to press the output element (6) axially against the other of the input element (4) and the output element (6), the torque transmission device further comprising a dynamic vibration damper (9), the dynamic vibration damper (9) having a carrier disk (28) and one or more inertial masses (29) which are mounted in an oscillating manner on the carrier disk (28), the input element (4) and the output element (6) of the torque limiter being suitable, under the action of the pressure element (5, 27) by friction to transmit a torque to the carrier disk (28), the carrier disk (28) being able to move relative to the input element (4) and relative to the output element (6) of the torque anti-limiter to rotate around the axis of rotation X.

Description

Technical part

The invention relates to the field of torque transmission devices for motor vehicles and relates in particular to a torque transmission device which is equipped with a torque limiter and a dynamic vibration damper, such as a pendulum device.

Technological background

According to the state of the art, e.g. from the document EP2765331 , It is known that torque transmission devices have an input element for rotationally fixed connection with a drive shaft and an output element for rotationally fixed connection with an output shaft. This torque transmission device further comprises a flange which is arranged between the drive element and the output element. The flange is rotatably connected to the input element via elastic elements. This flange is also connected to the output element via a torque limiter. In addition, a dynamic vibration damper, for example of the pendulum device type, which comprises a carrier and pendulum masses mounted in an oscillating manner on this, is mounted on the output element of the torque transmission device.

The addition of a pendulum device to the transmission device improves the performance of the transmission device, in particular with regard to the vibration-related noise pollution. However, such a transmission device is not entirely satisfactory, since the pendulum device mounted on the output element can be subjected to considerable impacts from the output shaft, typically from the gearbox.

Summary

An idea on which the invention is based is to propose a transmission device with satisfactory damping and sound performance. An idea on which the invention is based is to provide a torque transmission device with good safety and reliability for the components of this torque transmission device. An idea on which the invention is based is therefore to protect the components of the torque transmission device from impacts. One idea on which the invention is based is, in particular, the protection of the pendulum against impacts that can occur through the input or output of the torque transmission device.

• - ein Eingangselement, das von einem Antriebselement um eine Drehachse X in Drehung versetzt werden kann;
• - ein Ausgangselement zur Kopplung an ein angetriebenes Element, wobei das Ausgangselement relativ zum Eingangselement um die Drehachse X drehbar ist;
• - ein Druckorgan, das so angeordnet ist, dass es eines von dem Eingangselement und dem Ausgangselement axial gegen das andere von dem Eingangselement und dem Ausgangselement drückt, um durch Reibung ein Drehmoment zwischen dem Eingangselement und dem Ausgangselement zu übertragen,

wobei die Drehmomentübertragungsvorrichtung ferner einen dynamischen Schwingungstilger umfasst, wobei der dynamische Schwingungstilger eine Trägerscheibe und eine oder mehrere Trägheitsmassen umfasst, die oszillierend auf der Trägerscheibe montiert sind, wobei das Eingangselement und das Ausgangselement des Drehmomentbegrenzers in der Lage sind, unter der Wirkung des Druckorgans durch Reibung ein Drehmoment auf die Trägerscheibe zu übertragen, wobei die Trägerscheibe relativ zu dem Eingangselement und relativ zu dem Ausgangselement des Drehmomentbegrenzers um die Drehachse X drehbar ist.The invention thus provides a torque transmission device with a torque limiter, the torque limiter having:

• an input element which can be set in rotation by a drive element about an axis of rotation X;
• - An output element for coupling to a driven element, the output element being rotatable relative to the input element about the axis of rotation X;
• a pressure member arranged to press one of the input element and the output element axially against the other of the input element and the output element to transmit torque between the input element and the output element by friction,

wherein the torque transmission device further comprises a dynamic vibration damper, wherein the dynamic vibration damper comprises a carrier disk and one or more inertial masses which are mounted in an oscillating manner on the carrier disk, wherein the input element and the output element of the torque limiter are able to, under the action of the pressure element by friction to transmit a torque to the carrier disk, wherein the carrier disk is rotatable about the axis of rotation X relative to the input element and relative to the output element of the torque limiter.

Such a transmission device has the advantage that it has a good damping performance and at the same time generates a satisfactory level of noise. In addition, the torque limiter in such a torque transmission device protects the dynamic vibration absorber in the event of an overtorque, both from the input element and from the output element. In this way, the said dynamic vibration damper is protected from excessive torque, regardless of where the excessive torque in the torque transmission path originates. Since the dynamic vibration absorber is also rotatably mounted relative to the input element and relative to the output element of the torque limiter, this dynamic vibration absorber is protected by its own rotation relative to the input element and the output element even in the event of saturation.

According to other advantageous embodiments, such a torque transmission device can have one or more of the following properties.

The torque limiter and the carrier disk have friction surfaces which ensure the above-mentioned frictional torque transmission.

According to one embodiment, the carrier disk is inserted axially between the drive element and the output element.

Such an arrangement of the carrier disk ensures the passage of the torque transmitted between the input and output elements through the carrier disk of the dynamic vibration damper and thereby improves the performance of absorbing acyclicities of the torque transmission device.

According to one embodiment, the input element comprises a flange that can be rotated about the axis of rotation X, wherein the output element comprises a connecting apron, a front section and a rear section, the front section extending radially outward from a front end of the connecting apron, wherein the rear portion extends radially outward from a rear end of the connecting apron, the flange being disposed axially between the front portion and the rear portion of the output element, the pressure member being axially between the flange and one of the front portion and the rear portion of the Output element is arranged.

According to an alternative not shown, the output element comprises a flange which can be set in rotation about the axis of rotation X, the input element comprising a front and a rear disk which are connected to one another in a rotationally fixed manner, the front and the rear disk extending radially, the flange being disposed axially between the front and rear discs of the input member, the pressure member being located axially between the flange and either the front or rear discs of the input member.

According to one embodiment, the carrier disk is inserted axially between the pressure element and the flange, so that the carrier disk is pressed axially in the direction of the flange by the pressure element.

The pressure element thus exerts the same axial load on the elements of the torque limiter and on the carrier disk of the vibration damper.

According to one embodiment, the output element further comprises a friction plate, the flange being arranged axially between the friction plate and the carrier disc.

The connection between the friction plate and the skirt enables an axial movement of the friction plate with respect to the skirt, in particular through complementary axial grooves or grooves.

According to one embodiment, the pressure element is arranged axially between the rear part of the output element and the flange.

According to one embodiment, the torque limiter additionally has a load distribution plate which is pressed axially against the carrier disk by the pressure exerted by the pressure element.

According to one embodiment, the pressure element is in contact with the force distribution plate in the direction of the flange.

According to one embodiment, the force distribution plate is connected to the output element in a rotationally fixed manner, in particular by axial grooves or complementary grooves.

Such a force distribution plate enables the force exerted by the pressure element to be distributed and thus less wear on the torque transmission device.

According to one embodiment, the torque transmission device also has a main friction lining axially interposed between the input element and the output element.

According to one embodiment, the torque transmission device further comprises at least one secondary friction lining which is interposed axially between the carrier disk and at least one of the input element and the output element.

According to one embodiment, the flange is made of stainless steel and is free of deposits. If necessary, the linings can be mounted on the output element and / or the carrier disk. In this way the corrosion is limited.

Such friction linings enable good control of the coefficients of friction between the various components of the torque transmission device. In this way, it is possible to precisely and in a controlled manner define the threshold torques from which the named components slide against each other in order to protect them from overtightening torques.

According to one embodiment, the torque transfer device also includes a torsional damper.

According to one embodiment, the torsional damper is arranged radially outside the torque limiter.

According to one embodiment, the torsion damper comprises a primary element and at least one elastic element, wherein the primary element can be set in rotation by the input element and the at least one elastic element is inserted in the circumferential direction between the primary element and the input element of the torque limiter in order to be between the primary element of the torsion damper and to transmit torque with damping to the input element.

According to one embodiment, the input element of the torque limiter is arranged completely in the axial space which is occupied by the at least one elastic element. As a result, the torque limiter and the damper take up little axial space.

According to one embodiment, the torque limiter has friction linings which are arranged in contact with the input element of the torque limiter.

According to one embodiment, the input element of the torque limiter is a disk that extends in a plane perpendicular to the X axis of rotation.

According to one embodiment, the torque limiter has friction surfaces which ensure torque transmission between the input element and the output element by friction, and the at least one elastic element is located radially outside the friction surfaces of the torque limiter and the carrier disk.

According to one embodiment, the friction surfaces are arranged completely in the axial space that is defined by the at least one elastic element ( 16 ) is taken.

According to one embodiment, the elastic element (s) are arranged radially outside the inertial masses. According to one embodiment, the inertial masses are arranged radially outside the friction surfaces. According to one embodiment, the inertial masses are arranged radially between the elastic element (s) and the friction surfaces. In this way, the space requirement of the torque transmission device can be reduced.

According to one embodiment, the torque transmission device additionally comprises at least one sealing device, each sealing device sealingly connecting the input element with the output element, in particular the friction plate, and with the carrier disk.

Each sealing device is arranged radially between the friction surfaces of the torque limiter and the carrier disk and the at least one elastic element of the torsional damper.

On one side of the flange, the sealing device connects the flange to the cover.

According to one embodiment, a first sealing element connects the input element in a sealing manner to the output element, in particular the friction plate. According to one embodiment, a second sealing element connects the input element in a sealing manner to the carrier disk.

According to one embodiment, the pressure element is non-rotatably connected to one of the input element and the output element.

According to one embodiment, the primary element comprises a front plate which extends radially outward from a central portion which is intended to be mounted on the drive element, the primary element further comprising a primary rear element such as a cover mounted on the front plate, wherein the front plate and the primary cover together form at least one housing for the elastic element (s), wherein the input element of the torque limiter, such as a flange axially disposed between the faceplate and the primary rear member, and the support disc axially disposed between the faceplate and the input member of the torque limiter.

According to one embodiment, the output element comprises a central hub which is able to drive a transmission shaft, in particular by means of grooves.

According to one embodiment, the pressure element is an elastic disk inserted axially between the input element and the output element.

According to one embodiment, the pressure element is rotationally fixed relative to the input element and / or output element of the torque limiter.

According to one embodiment, the pressure element is rotatable relative to the input element and / or output element of the torque limiter.

According to one embodiment, the dynamic damper is arranged completely or partially axially in the axial space occupied by the torsion damper and torque limiter. The use of a dynamic damper therefore does not lead to an excessive axial space requirement. In particular, the use of a dynamic damper must not take up more space axially than the axial space taken up jointly by the torsion damper and the torque limiter.

In particular, the inertial masses of the dynamic damper are arranged axially in the axial space occupied by the torsional damper and the torque limiter.

According to one embodiment, the dynamic damper is arranged completely or partially axially in the axial space occupied by the torsional damper.

In particular, the inertial masses of the dynamic damper are arranged axially in the axial space occupied by the torsional damper.

According to one embodiment, the dynamic damper is arranged completely or partially axially in the axial space occupied by the torque limiter.

In particular, the inertial masses of the dynamic damper are arranged axially in the axial space occupied by the torque limiter.

In summary, it can be said that the inertial masses of the dynamic damper can advantageously be arranged axially in the axial space occupied by the torsion damper and / or the torque limiter. In this way, the space requirement is reduced and the masses are well integrated into the assembly formed by the torsional damper and the torque limiter.

You can e.g. are less disturbed by external elements.

According to one embodiment, the dynamic vibration damper is configured to filter out vibrations that are generated by a torque between 50 Nm and 100 Nm.

The friction materials used can be steel with a coating such as nickel, bakelite, ...

Depending on the selected friction materials and the dimensions of the friction surfaces used, it can be ensured that the threshold of the sliding torque occurring on the carrier disk is essentially the same as or different from the threshold of the sliding torque occurring between the input and output elements.

According to one embodiment, the dynamic vibration damper is a pendulum device.

Figure list

• - 1 ist eine schematische Darstellung einer erfindungsgemäßen Drehmomentübertragungsvorrichtung;
• - 2 ist eine Schnittdarstellung einer Drehmomentübertragungsvorrichtung, wie sie in 1 schematisch dargestellt ist, gemäß einer ersten Ausführungsform;
• - 3 ist eine Schnittdarstellung einer Drehmomentübertragungsvorrichtung, wie sie in 1 schematisch dargestellt ist, gemäß einer zweiten Ausführungsform;
• - 4 ist eine Schnittdarstellung einer Drehmomentübertragungsvorrichtung, wie sie in 1 schematisch dargestellt ist, gemäß einer dritten Ausführungsform;
• - 5 ist eine Schnittdarstellung einer Drehmomentübertragungsvorrichtung, wie sie in 1 schematisch dargestellt ist, gemäß einer vierten Ausführungsform;
• - 6 ist eine Schnittdarstellung einer Drehmomentübertragungsvorrichtung, wie sie in 1 schematisch dargestellt ist, gemäß einer fünften Ausführungsform.

The invention will be better understood and other purposes, details, features and advantages of the invention will appear more clearly in the following description of several particular modes of carrying out the invention, given for purposes of illustration and without limitation, with reference to the accompanying drawings.

• - 1 is a schematic representation of a torque transfer device according to the invention;
• - 2 FIG. 13 is a cross-sectional view of a torque transmitting device as shown in FIG 1 is shown schematically, according to a first embodiment;
• - 3 FIG. 13 is a cross-sectional view of a torque transmitting device as shown in FIG 1 is shown schematically, according to a second embodiment;
• - 4th FIG. 13 is a cross-sectional view of a torque transmitting device as shown in FIG 1 is shown schematically, according to a third embodiment;
• - 5 FIG. 13 is a cross-sectional view of a torque transmitting device as shown in FIG 1 is shown schematically, according to a fourth embodiment;
• - 6th FIG. 13 is a cross-sectional view of a torque transmitting device as shown in FIG 1 is shown schematically, according to a fifth embodiment.

Description of the embodiments

In the description and in the claims, the terms “outside” and “inside” as well as the orientations “axial” and “radial” are used to denote elements of the torque transmission device in accordance with the definitions given in the description. According to the agreement, the “radial” orientation is oriented orthogonally to the axis of rotation X of the torque transmission device, which determines the “axial” orientation, and is the "circumferential alignment" is orthogonal to the X axis and orthogonal to the radial direction. The terms "external" and "internal" are used to define the relative position of one element with respect to another element with respect to the axis of rotation X of the torque transmitting device, with an element near the axis X being referred to as internal, as opposed to an external element located radially on the circumference. In addition, the terms “rear” AR and “front” AV are used to define the relative position of one element in relation to another in the axial direction, with one element to be placed near the engine as the front and one near the Gear to be arranged element is referred to as the rear.

A torque transmitting device 1 as in 1 is shown schematically, is intended to be arranged between a drive shaft, for example a crankshaft of an internal combustion engine, and an output shaft, for example an input shaft of a transmission. Such a torque transfer device 1 comprises a primary element 2 , a damping organ 3 , a flange 4th , a pressure organ 5 and a secondary element 6th .

The primary element 2 the torque transmitting device 1 is designed to be set in rotation by the drive shaft. The damping organ 3 couples the primary element 2 and the damper plate 4th damping rotatory with each other. So form the primary element 2 , the damping organ 3 and the flange 4th together a torsional damper of the torque transmission device 1 for recording acyclic movements from the motor.

In order to protect the torque transmission device from shocks that can originate from the transmission or engine (not shown), the torque transmission device contains a torque limiter. This torque limiter is through the flange 4th , the pressure organ 5 and the secondary element 6th educated. In particular, the pressure member exercises 5 an axial pressure on a first friction surface 7th that from the flange 4th is carried in the direction of a second friction surface 8th from that of the secondary element 6th will be carried. The pressure organ 5 thus presses the first friction surface 7th against the second friction surface 8th to create a torque between the flange by friction 4th and the secondary element 6th transferred to. This transmission of torque by friction limits that between the flange 4th and the secondary element 6th transmittable torque to a transmittable threshold torque, when it is exceeded between the first friction surface 7th and the second friction surface 8th sliding occurs. In other words, the torque limiter transmits between the flange 4th and the secondary element 6th no torque that is greater than the transmittable threshold torque, and derives the overtorque that goes beyond said transmittable threshold torque through slip. The torque limiter protects the downstream components in the torque path in the event of shocks from the engine or the gearbox.

To improve its performance, in particular to reduce vibration-related noise, the torque transmission device comprises 1 a dynamic vibration damper 9 , which in the following for example as a pendulum device 9 referred to as. This pendulum device is mounted inside the torque limiter. In particular, this pendulum device can be between the first friction surface 7th and the second friction surface 8th to be ordered.

The pendulum device 9 is relative to the flange 4th rotatably mounted. The pendulum device 9 is also rotatable with respect to the secondary element 6th stored. In other words, the shuttle device is 9 not firmly, e.g. by riveting, on the flange 4th or the secondary element 6th mounted, but rotatably mounted with axial preload on one of the parts of the torque limiter and this axial preload is applied by the pressure element 5 of the torque limiter reached. So carries the pendulum device 9 a third friction surface 10 and a fourth friction surface 11 . The third friction surface 10 works with the flange 4th together to reduce the torque between the flange by friction 4th and the shuttle 9 transferred to. The fourth friction surface 11 works with the secondary element 6th together to reduce the torque between the pendulum device by friction 9 and the secondary element 6th transferred to.

Due to the frictional interaction of the individual friction surfaces 7th , 8th , 10 , 11 and the rotational mobility of the shuttle 9 on the one hand opposite the flange 4th and on the other hand towards the secondary element 6th the torque limiter protects the pendulum device 9 if there is an overtorque in the engine or gearbox. In addition, the rotational mobility of the pendulum device in relation to the flange and in relation to the secondary element also protects the pendulum device 9 from possible saturation through autorotation. In addition, the pressure organ exercises 5 equal axial pressure on the individual components of the torque limiter and on the pendulum device 9 out.

The 2 to 6th show examples of the structure of the torque transmission device functionally described above 1 in relation to 1 .

2 shows a first embodiment of the torque transmission device 1 . The primary element 2 has a front panel 12 extending from a central section 13th extends radially outward, which is used for attachment to the engine crankshaft. The primary element 2 further comprises a primary lid 14th representing the rear part of the primary element 2 forms and on the front panel 12 is mounted. The front panel 12 and the primary cover 14th together form radially outer housings 15th . The damping organ 3 includes a plurality of coil springs 16 that are in the housings 15th are housed. The flange 4th has claws 17th on that in the circumferential direction between the coil springs 16 are arranged so that when the primary element 2 is set in rotation, the coil springs 16 between a bottom of the housing 15th and a corresponding claw 17th are compressed to create a torque between the primary element 2 and the flange 4th with damping of the acyclisms. The coil springs can be curved or straight springs.

The secondary element 6th includes a central hub 18th , a back plate 19th , an apron 20th and a wreath 21st . The central hub 18th is intended to be coupled to an output shaft, such as a transmission input shaft. The back plate 19th extends from the central hub 18th radially outwards. The skirt 20th extends from a radially outer end of the rear plate 19th axially forward. The wreath 21st protrudes from the radially outer end of the rear plate 19th radially outwards, ie the rim 21st extends the back plate 19th radially outwards over the skirt 20th out.

A lock washer 22nd is on a radially outer side of the apron 20th assembled. This lock washer 22nd is at the front end of the apron 20th , ie on that of the rear plate 19th mounted opposite end of the apron. The lock washer 22nd has a toothing on its inner circumference, the teeth of which are in an axial groove 23 on the radially outer surface of the skirt 20th are housed. The lock washer 22nd is therefore non-rotatable with the apron 20th connected. A leading end of the axial groove 23 has a circular groove that extends radially inward with the teeth of the locking washer 22nd housed in this groove to allow the axial movement of the lock washer 22nd in the axial groove 23 to block.

A support plate 24 is also on the apron 20th assembled. Similar to the lock washer 22nd the support plate has internal teeth, the teeth of which are in the axial groove 23 are housed so that the platen 24 non-rotating with the apron 20th connected is. The platen 24 is axially between the lock washer 22nd and the apron 21st arranged so that the platen 24 through the lock washer 22nd is secured axially forward.

The secondary element also has a friction plate 26th on. This friction plate 26th also has internal teeth, the teeth of which are in the axial groove 23 are housed so that the friction plate 26th non-rotating with the apron 20th connected is.

A radially inward end of the flange 4th is axially between the friction plate 26th and the platen 24 used. In addition, the pressure member includes 5 an elastic washer 27 axially between the platen 24 and the flange is arranged. In other words, the radially inner end of the flange 4th becomes under the action of the elastic disc 27 axially between the support plate 24 and the friction plate 26th clamped. Thus, a rear surface supports the radially inner end of the flange 4th the first friction surface 7th and a front surface of the friction plate 26th the second friction surface 8th so that the torque is due to friction between the flange 4th and the secondary element 6th can be transferred. So has the torque limiter of the torque transmission device 1 an input member passing through the radially inner end of the flange 4th is formed, and an output element that is formed by the secondary element 6th is formed. This torque limiter is therefore located radially inside the coil springs and at the radially outer end of the flange 4th . In addition, the torsional damper is located in the torque transmission path of the torque transmission device closer to the engine than the pendulum device and thus protects the pendulum from shocks that can occur when the engine is started.

At the in 2 The embodiment shown has the elastic disc 27 an internal toothing, the teeth of which in the axial groove 23 the apron 20th are added so that the elastic washer 27 analogous to the support plate 24 non-rotating with the apron 20th connected is. In an embodiment not shown in the figure, the elastic disc has no internal teeth and is relative to the secondary flywheel 6th freely rotatable.

In one variant, the torque limiter of the torque transmission device 1 an input member formed with a front part such as a front disc and a rear part such as a rear disc, and an output member formed by an intermediate flange axially disposed between the front part and the rear part.

The pendulum device 9 comprises a carrier disk 28 on which the pendulum masses 29 are mounted oscillating. The carrier disk has an axially following at the front protruding area for attaching the pendulum masses 29 on both sides of the carrier disc, without the flange 4th to hinder. A radially inner end of the carrier disc 28 is axially between the radially inner end of the flange 4th and the elastic washer 27 clamped. So becomes the carrier disk 28 axially between the elastic washer and the flange 4th clamped.

To the carrier disk 28 not to be damaged is a load distribution plate 30th axially between the elastic disc 27 and the radially inner end of the carrier disk 28 inserted.

At the in 2 The first embodiment shown is supported by a first friction lining 31 on one of the flange 4th and the friction plate 26th off and carries one of the first friction surface 7th and the second friction surface 8th . This first friction lining 31 allows that between the flange 4th and the friction plate 26th of the secondary element 6th to master the maximum transmittable torque. The first is the friction lining 31 made of a predetermined material, so that there is a slip between the first friction lining 31 and one of the friction plate 26th and the flange 4th occurs when that of said one of the friction plate 26th and the flange 4th coming torque is greater than the maximum transmittable torque.

The coefficients of friction of the first and second friction surfaces are advantageously 7th , 8th determined so that the torque limiter acts above the drive torque. The maximum transmittable torque is determined by the torque limiter so that the maximum transmittable torque is at least 1.3 times the engine torque, e.g. 2.2 times the engine torque plus or minus 0.7 times the engine torque. For example, with an engine torque of 200 Nm, the maximum transmittable torque, from which the torque limiter acts, is a slip between the first friction surface 7th and the second friction surface 8th occurs, 440 Nm plus or minus 140 Nm.

A second friction lining is in a corresponding manner 32 between the flange 4th and the carrier disk 28 arranged to do that through the flange 4th and the carrier disk 28 Mastering flowing torque. Likewise are the materials that make up the carrier disk 28 and the load distribution plate 30th are also selected to determine the torque applied between the carrier disc 28 and the secondary element 6th via the load distribution plate 30th is transmitted. So depending on the one between the flange 4th and the secondary element 6th transmitted torque the carrier disk 28 from one from the flange 4th and the force distribution plate 30th rotated and is rotatable relative to the other of the flange 4th and the force distribution plate 30th .

At the in 2 The illustrated embodiment comprises the torque transmission device 1 also a sealing device 33 . This sealing device 33 includes a first seal guide 34 that seal at a radially outer end of the carrier disk 28 is attached and sealingly to a front surface of the flange 4th is applied. In the same way, this sealing device comprises a second sealing guide 37 that are sealed at a radially outer end of the friction plate 26th is mounted and sealed on a rear surface of the flange 4th is applied. In addition, this includes sealing device 33 a sealing washer 35 who have favourited the primary cover 14th of the primary element 2 and the friction plate 26th sealingly connects. Such a seal prevents that in the area of the coil springs 16 existing grease contaminates the friction surfaces and impairs the function of the torque limiter. In addition, the first and second guides serve 34 , 37 for the axial stabilization of the radially outer ends of the carrier disk 28 and the friction disc 26th , causing the resulting vibrations and noise in the torque transmission device 1 be reduced.

3 shows a second embodiment of the torque transmission device 1 . Components that are identical to the components described above or perform the same function are referred to in relation to them 3 marked with the same reference number.

This second version differs from the first version in that the positions of the friction disc 26th and the shuttle 9 are swapped. Such is the friction plate in this second embodiment 26th axially between the elastic disc 27 and the flange 4th inserted. In addition, the radially inner end of the carrier disk 28 axially between the radially inner end of the flange 4th and the wreath 21st of the secondary element 6th inserted. The axial groove 23 the apron in which the teeth of the internal teeth of the friction plate 26th , the platen 24 and the lock washer 22nd are accommodated, thus extends over an axial part of the skirt that is reduced compared to the first embodiment 20th .

Analogous to the first design, the same force F is under the action of the elastic disc 27 axially through the carrier disk 28 , the flange 4th and the friction plate 26th directed.

Because the elastic washer 27 axially between the support plate 24 and the friction plate 26th is arranged, the two equally rotatably with the apron 20th are connected, it is not necessary in this second embodiment, a force distribution plate 30th to be provided.

4th shows a third embodiment of the torque transmission device 1 . Elements that are identical to or perform the same function as the elements described above are referred to in relation to them 4th marked with the same reference number.

This third design differs from the second design in that it does not have a first seal guide 34 that contains the flange 4th and the radially outer end of the carrier disk 28 sealingly connects. In this embodiment, the sealing washer connects 35 directly the rear face of the flange 4th and the primary cover 14th of the primary element 2 .

5 shows a fourth embodiment of the torque transmission device 1 . Components that are identical to the components described above or perform the same function are referred to in relation to them 5 marked with the same reference number.

This fourth version differs from the one in 3 second embodiment shown in that they also have a third friction lining 36 having axially between the rim 21st of the secondary element and the radially inner end of the carrier disk 28 is arranged.

6th shows a fifth embodiment of the torque transmission device 1 . Components that are identical to the components described above or perform the same function are referred to in relation to them 6th marked with the same reference number.

This fifth embodiment differs from that in FIG 3 illustrated second embodiment in that the flange 4th and the radially inner end of the carrier disc 28 be in direct contact. In other words, in this fifth embodiment there is between the radially inner end of the carrier disk 28 and the flange 4th no second friction lining 32 inserted.

In these fourth and fifth embodiments, the materials selected for the production of the various frictionally interacting components are selected according to the desired maximum torque that can be transmitted between these components.

Although the invention has been described in connection with several particular embodiments, it is obvious that it is in no way restricted to these and that it encompasses all technical equivalents of the means described as well as their combinations, provided that they fall within the scope of the invention.

For example, a variant of the first embodiment can be proposed in which the friction plate 26th is removed and the flange 4th on the wreath 21st rubs, possibly with the help of a covering.

If necessary, a sealing washer can connect the rear of the flange directly to the primary cover of the primary element.

The use of the verb “comprise,” “exhibit,” or “include” and its conjugate forms does not exclude the presence of elements or steps other than those specified in a claim.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

QUOTES INCLUDED IN THE DESCRIPTION

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

Patent literature cited

• EP 2765331 [0002]

Claims (14)

A torque transmission device (1) with a torque limiter, the torque limiter comprising: - An input element (4) which is suitable for being set in rotation about an axis of rotation X by a drive element; - an output element (6) which is intended to be coupled to an output element, the output element (6) being able to rotate with respect to the input element (4) about the axis of rotation X; - a pressure member (5) arranged to press one of the input element (4) and the output element (6) axially against the other of the input element (4) and the output element (6) to create a torque between to transmit the input element (4) and the output element (6), wherein the torque transmission device further comprises a dynamic vibration damper (9), wherein the dynamic vibration damper (9) comprises a carrier disk (28) and one or more inertial masses (29), which oscillate are mounted on the carrier disk (28), the input element (4) and the output element (6) of the torque limiter being suitable for transmitting a torque to the carrier disk (28) by friction under the action of the pressure element (5, 27), wherein the carrier disk (28) is suitable for rotating about the axis of rotation X relative to the input element (4) and relative to the output element (6) of the torque limiter. Torque transfer device according to Claim 1 , in which the carrier disk (28) is interposed axially between the input element (4) and the output element (6). Torque transfer device according to Claim 1 or 2 , in which the input element (4) comprises a flange which is adapted to be driven in rotation about the axis of rotation X, the output element (6) having a connecting skirt (20), a front section (24) and a rear section (21 ), wherein the front portion (24) extends radially outward from a front end of the connecting skirt (20), the rear portion (21) extending radially outward from a rear end of the connecting skirt (20), the flange axially between the front portion (24) and the rear portion (21) of the output element (6) is interposed, wherein the pressure member (5, 27) is axially between the flange and one of the front portion (24) and the rear portion (21 ) of the output element is inserted. Torque transfer device according to Claim 3 , the carrier disk (28) being interposed axially between the pressure element (27) and the flange, so that the carrier disk (28) is pressed axially against the flange by the pressure element (27). Torque transfer device according to Claim 3 or 4th wherein the output element (6) further comprises a friction plate (26), the flange being interposed axially between the friction plate (26) and the carrier disc (28). Torque transfer device according to one of the Claims 3 to 5 wherein the pressure member (27) is arranged axially between the rear portion (21) of the output element (6) and the flange. Torque transfer device according to one of the Claims 1 to 6th , further comprising a torsional damper, and wherein the torsional damper comprises a primary element and at least one elastic element (16), the primary element being capable of being set in rotation by the input element, and wherein the at least one elastic element (16) in the circumferential direction is interposed between the primary element and the input element (4) of the torque limiter in order to transmit a torque with damping between the primary element of the torsional damper and the input element (4). Torque transfer device according to Claim 7 wherein the input element (4) of the torque limiter is arranged completely in the axial space which is occupied by the at least one elastic element (16). Torque transfer device according to Claim 7 or 8th , wherein the torque limiter has friction surfaces (7, 8) which ensure a torque transmission by friction between the input element (4) and the output element (6), and wherein the at least one elastic element (16) radially outside the friction surfaces (7, 8) the torque limiter and the carrier disk (28) is arranged. Torque transfer device according to Claim 9 , in which the friction surfaces (7, 8) are arranged completely within the axial space which is occupied by the at least one elastic element (16). Torque transfer device according to Claim 9 or 10 , in which the inertial masses (29) are arranged radially between the elastic element (s) (16) and the friction surfaces (7, 8). Torque transmission device according to one of the preceding claims, wherein a first sealing element (37) sealingly connects the input element (4) to the output element (6) and a second sealing element (34) sealingly connects the input element (4) to the carrier disk (28). Torque transfer device according to one of the Claims 9 to 11 wherein the primary element (2) comprises a front plate (12) which extends radially outward from a central portion (13) which is intended to be mounted on the drive element, the primary element (2) also being a primary rear element (14) such as a cover, which is mounted on the front plate (12), the front plate (12) and the primary cover (14) together at least one housing (15) for the elastic element (s) ( e) (16), wherein the input element (4) of the torque limiter, such as a flange, is arranged axially between the front plate (12) and the primary rear element (14), and wherein the carrier disk (28) is axially between the front plate ( 12) and the input element (4) of the torque limiter is arranged. Torque transfer device according to one of the Claims 8 to 10 , in which the inertial masses (29) of the dynamic damper are arranged axially in the axial space occupied by the torsion damper and / or the torque limiter.

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