CN115704465A

CN115704465A - Damper device for a belt mechanism of a belt drive and holding device for a damper device for a belt mechanism of a belt drive

Info

Publication number: CN115704465A
Application number: CN202210718989.4A
Authority: CN
Inventors: 尼古拉斯·舍尔
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2021-08-03
Filing date: 2022-06-23
Publication date: 2023-02-17
Also published as: DE102021120121A1

Abstract

The invention relates to a damper arrangement (1) for a belt mechanism (2) of a belt drive (3), having a bearing receptacle which is pivotably mounted about an axial direction (11) on a bearing bridge of a drive housing of the belt drive (3). The vibration damper arrangement is characterized in that the bearing receptacle has an axially oriented funnel-shaped mounting attachment. The invention further relates to a holding device for a damper arrangement of a belt mechanism of a belt drive, having at least one support element with a support bridge having a support axis, wherein a bearing receptacle of the damper arrangement received on the support bridge can be pivoted about the support axis, wherein the support element has a mounting end axially opposite the support bridge. The holding device is characterized in that the mounting end has a cone-shaped mounting attachment. By means of the damper device or the holding device proposed here, a particularly simple and reliable installation can be achieved.

Description

Damper device for a belt mechanism of a belt drive and holding device for a damper device for a belt mechanism of a belt drive

Technical Field

The invention relates to a damper arrangement for a belt mechanism of a belt drive, having a bearing receptacle which is pivotably mounted on a bearing bridge of a drive housing of the belt drive in an axial direction. The vibration damper arrangement is characterized in that the bearing receptacle has an axially oriented funnel-shaped mounting attachment. The invention further relates to a holding device for a damper arrangement of a belt mechanism of a belt drive, having at least one carrier element with a bearing bridge having a bearing axis, wherein a bearing receptacle of the damper arrangement, which is received on the bearing bridge, can be pivoted about the bearing axis, wherein the carrier element has a mounting end axially opposite the bearing bridge. The holding device is characterized in that the mounting end has a cone-shaped mounting attachment. The invention also relates to a transmission housing having such a retaining device, a belt drive for a drive train having such a transmission housing, a drive train having such a belt drive, and a motor vehicle having such a drive train.

Background

A belt drive for a motor vehicle, also called a conical-pulley belt drive or CVT (continuously variable transmission), comprises at least a first conical-pulley pair arranged on a first shaft and a second conical-pulley pair arranged on a second shaft and a belt mechanism arranged for transmitting torque between the conical-pulley pairs. The conical disk pair comprises two conical disks which are oriented toward one another by means of corresponding conical surfaces and can be moved axially relative to one another. Such a belt drive generally comprises at least a first conical disk pair and a second conical disk pair, each having a first conical disk, also referred to as a slack disk or a far disk, which is displaceable along the shaft axis, and a second conical disk, also referred to as a fixed disk, which is fixed in the direction of the shaft axis, wherein the belt mechanism provided for transmitting torque between the conical disk pairs runs on a variable effective circle due to the conical surfaces as a result of the relative axial movement between the slack disk and the fixed disk. In this way, different rotational speed and torque transmission ratios can be set steplessly from one conical disk pair to the other.

Such belt drives have been known for a long time, for example from DE 100 17 005A1 or WO 2014/012741 A1. During operation of the belt drive, the belt mechanism is displaced in the radial direction between an inner position (small effective circle) and an outer position (large effective circle) by means of a relative axial movement of the conical disks, i.e. the conical disks at the conical disk pair. The belt mechanism forms two return sections between the two pairs of conical disks, wherein (depending on the configuration and direction of rotation of the conical disk pairs) one of the return sections forms a pulling return section and the other return section forms a pushing return section (Schubtrum), or one of the return sections forms a tensioning return section and the other return section forms a relaxing return section.

In such a belt drive, at least one damper device is provided in the free space between the conical disk pair. Such a damper device may be provided at the pull return section and/or the push return section of the belt mechanism and serve to guide and thereby limit the vibrations of the belt mechanism.

It has been shown that in motor vehicles with hybrid drive trains, the electric drive should be available for operation for a longer time. The installation space of the internal combustion engine or its associated components is therefore reduced while maintaining a known (main body) power level of the internal combustion engine. Therefore, there is also a need in the market to reduce the installation space requirements of belt drives. In this case, the reduction of the conical disk pairs in the circumferential direction makes it possible to achieve the desired result of reducing the transmission housing. However, the smaller transmission housing makes it difficult to install the damper device within the transmission housing.

Disclosure of Invention

Based on this, the invention is based on the object of at least partially overcoming the disadvantages known from the prior art. In the following, advantageous embodiments of the invention are explained. The features of the invention can be combined in all technically meaningful ways and methods, wherein the features from the following description and from the drawings, which comprise additional embodiments of the invention, can also be used for this purpose.

The invention relates to a damper arrangement for a belt mechanism of a belt drive, having at least the following components:

at least one sliding surface which is set up for bearing in a vibration-damped manner against the return portion of the belt means; and

a bearing receptacle, which is pivotably mounted on a bearing bridge of a transmission housing of the belt transmission in an axial direction, for orienting a sliding surface independently of the orientation of the return section to be damped, such that the sliding surface defines a direction of travel perpendicular to the transverse direction for the return section to be damped.

The vibration damper arrangement is characterized in that the bearing receptacle has an axially oriented funnel-shaped mounting attachment.

In the following, when using the transverse and axial directions and the corresponding terms perpendicular to the direction of travel, thereby developing a cartesian coordinate system, without further explicit indication, reference is made to the mentioned direction of travel (also referred to as longitudinal direction). If the direction of travel, the axial direction and the transverse direction are referred to here, this means not only a positive direction but also a negative direction in the unfolded coordinate system. Furthermore, reference is made to a belt mechanism which, in the mounted state, forms a belt circle around the set effective circle of the two conical disk pairs of the belt drive and, with regard to the belt circle, relates to the inside, i.e. is enclosed by the belt mechanism in the (imaginary) plane of the belt circle, and to the outside and uses the corresponding terms. The designations left and right return section relate to the sides of the direction of travel in parallel planes with respect to the pivot axis, are arbitrarily chosen (interchangeable) and are purely for simplicity of illustration.

The sequence numbers used in the above and in the following description are for explicit differentiability only and do not indicate the order or priority of the components described, as long as they are not explicitly indicated to the contrary. Ordinal numbers greater than one do not cause additional such components to necessarily be present.

According to the prior art, a damper device is provided for damping a belt mechanism, such as a chain or a belt, a belt drive having two conical disk pairs. The belt mechanism is embodied, for example, as a traction mechanism or a metal belt. This means that the damper device is designed for one of the two return sections of the belt mechanism, for example for forming a tension return section when the traction mechanism is configured to be driven. Alternatively, the slack return section or the two return sections are each guided by means of such a damper device. If the guidance of the return path is concerned here, this simultaneously means a damping of the return path, since the belt mechanism accelerates the conical disk pairs upstream in the direction of travel laterally outward in the transition into the return path in a direction deviating from the ideal tangential direction of the set effective circles of the two conical disk pairs. From which shaft vibrations are induced which impair the efficiency and cause noise emissions. For example, vibration frequencies (stress-related) of the return path to be guided up to approximately 800hz [800 hz ] occur in the belt drive and are acoustically related.

In one embodiment, the damper device serves as a slide or slide guide (a one-sided, generally inboard device at the return section). Alternatively, the damper device is embodied as a slide rail. For guiding or damping vibrations, such a running rail has two sliding surfaces which are oriented in a laterally opposing manner to one another, wherein an inner sliding surface is set up from the laterally inner side and an outer sliding surface is set up from the laterally outer side in order to rest against the return portion to be guided during operation. During operation, the sliding surface bears permanently or in a manner dependent on the oscillation state against the return portion to be guided. The sliding surface thereby forms an abutment surface extending in the direction of travel, which suppresses the transversely oriented amplitude of the shaft vibrations of the return section to be damped.

The damper device comprises a bearing receptacle, wherein the bearing receptacle is designed to receive a bearing bridge. The support bridge is surrounded by a transmission housing with a transmission. In one embodiment, the bearing bridge is formed integrally with the transmission housing. In a preferred embodiment, the bearing bridge is formed separately from the transmission housing and is connected fixedly or in an articulated manner to the transmission housing. The bearing receptacles are pivotably supported, for example, in the manner explained at the outset on an axially oriented pivot axis formed by the bearing bridges.

In this case, the bearing receptacles of the damper device are designed to cooperate with the bearing bridges in such a way that they can achieve a corresponding (passive) orientation of the sliding surfaces of the damper device relative to the return path to be guided. The damper device can thus be pivoted about the axial direction by means of the bearing receptacle in cooperation with the received bearing bridge (following the return path to be damped). The sliding surface defines a direction of travel perpendicular to the transverse direction for the return section to be damped. The direction of travel, the transverse direction and the axial direction therefore develop a cartesian coordinate system (which moves together in operation). Furthermore, in some applications the damper device may be laterally movable such that the damper device follows a (steeper elliptical) curve deviating from a circular orbit about the pivot axis. The pivot axis thus forms the center of a (two-dimensional) polar coordinate system, wherein the (pure) pivoting movement thus corresponds to a change in the polar angle and the lateral movement corresponds to a change in the polar radius. For the sake of overview, the translational movement superimposed, i.e. overlapping, with the pivoting movement is omitted in the following and is summarized as the term pivoting movement. The pivot axis is oriented transverse to the direction of travel of the belt mechanism, i.e. axially. This ensures that the damper arrangement can follow the new (tangential) orientation of the belt mechanism, derived therefrom, in a guided manner when adjusting the effective circle of the belt drive. Although the direction of travel is intended to form the ideal shortest connection between the effective circles of application of the two conical disk pairs, in dynamic operation the orientation of the respective return section may deviate from said ideal shortest connection for a short time or permanently.

It is now proposed that the bearing receptacle has an axially oriented funnel-shaped mounting attachment. The funnel-shaped mounting attachment is embodied such that it has an inclination with respect to the axial direction. The inclination of the mounting attachment is designed such that the (arbitrary) surface normal of the mounting attachment intersects the pivot axis. For example, the angle enclosed between the surface normal of the funnel-shaped mounting attachment and the pivot axis is 15 ° [ fifteen degrees out of 360 °) to 75 °, preferably 30 ° to 60 °, for example 45 °. The funnel-shaped mounting attachment simplifies the axial placement of the vibration damper arrangement on the component of the transmission housing comprising the bearing bridge, so that a reliable blind mounting can be achieved. Due to the tilting of the mounting attachment, the bearing bridge slides into a predetermined position of the damper device in the belt drive. The funnel-shaped mounting attachments are arranged at least on the mounting side of the vibration damper arrangement, the axial direction being oriented perpendicular to the mounting side and the mounting side facing the bearing bridge during mounting, preferably on both sides in the case of a vibration damper arrangement embodied mirror-symmetrically to a plane spanned by the direction of travel and the transverse direction.

In order to prevent the damper device from tilting about the funnel-shaped mounting attachment during operation, a bearing surface oriented parallel to the bearing bridge is also proposed. The bearing surface is positioned outside the funnel-shaped mounting attachment and is formed in one piece with at least one rail half. In a preferred embodiment, the bearing surface is formed (axially inwardly) next to the funnel-shaped mounting attachment. The bearing surface is thus the contact surface with the bearing bridge during operation.

In a preferred embodiment of the bearing receptacle, a funnel-shaped mounting attachment is provided (in any operating case) over the entire extension of the (preferably parallel) faces (e.g. bearing faces) facing the bearing bridge.

In an advantageous embodiment of the vibration damper arrangement, it is furthermore provided that the vibration damper arrangement has a first rail half and a second rail half, wherein a connecting device is provided by means of which the two rail halves are fixed relative to one another in the axial direction and in the travel direction, wherein preferably the first rail half and the second rail half are formed in the same manner, particularly preferably in unison.

The damper device is designed in one or more parts, preferably in two parts, wherein (preferably only) a first rail half and a second rail half are provided. In a one-piece embodiment, the two rail halves are formed integrally with one another. At least one sliding surface is preferably formed by a partial surface of the rail half. In the case of a multi-part embodiment, the two rail halves are preferably produced separately from one another. The two separate track halves are fixed to each other in the axial direction and in the direction of travel by means of a connecting device. In a common embodiment, a snap hook is provided for this purpose.

The rail halves of the damper device are preferably each formed completely in one piece, particularly preferably by means of injection molding, for example from polyamide [ PA ], preferably PA 46.

In a preferred embodiment, two identically constructed rail halves are provided, as is known in some conventional embodiments. During installation, the rail halves can be built up axially relative to one another on the return section to be damped, or one rail half can already be installed and the other rail half can be built up axially. In one embodiment with snap hooks (since each rail half is identical in construction), the hooks are then inserted into corresponding hook receptacles of the respective other rail half.

The two rail halves are preferably designed in an overall structurally identical manner, i.e., identically, so that they can always be produced in the same production method (for example in the case of injection molding by means of a single injection mold). Thereby reducing production costs and presenting no risk of confusion during installation.

In an advantageous embodiment of the vibration damper arrangement, it is furthermore provided that an auxiliary surface is provided outside the funnel-shaped mounting attachment, wherein the auxiliary surface is oriented in the following plane: the axial direction is oriented perpendicular to the plane.

The auxiliary surface proposed here is arranged outside (preferably next to) the funnel-shaped mounting attachment. The axial direction is oriented perpendicular to the auxiliary surface, i.e. perpendicular to such a plane spanned by the direction of travel and the transverse direction or parallel thereto. By means of the auxiliary surface, on the one hand, the contact surface which is helpful during (blind) installation is increased and, on the other hand, sliding-off (caused by an inclination opposite to the inclination of the funnel-shaped mounting attachment) is prevented. The funnel-shaped mounting attachment is preferably completely surrounded by the auxiliary surface.

In an advantageous embodiment of the vibration damper arrangement, it is furthermore provided that the closed opening for receiving the bearing bridge is surrounded by the bearing receptacle and preferably by a funnel-shaped mounting attachment.

In order to increase the rigidity of the bearing receptacle or the orientation of the damper device on the bearing bridge with a small installation space requirement of the damper device in the direction of travel, a closed opening of the bearing receptacle is proposed. The closed opening closes the bearing receptacle in the transverse direction to further stiffen the entire damper device. Thus, for example, vibrations of the bearing receptacle that would propagate to the entire vibration damper arrangement can be reduced and/or eliminated.

In a preferred embodiment of the bearing receptacle, the funnel-shaped mounting attachment is arranged over the entire extension of the opening, i.e. circumferentially. It should be noted that the length of the inclined surface and/or the angle of inclination of the funnel-shaped mounting attachment need not be constant all around, but may be variable, for example.

The closed opening closes the bearing receptacle in the transverse direction, so that incorrect installation can also be ruled out when the damper device is installed on the bearing bridge. For example, in the bearing receptacle which is open laterally inward, it would be possible, in the case of blind installation, for the damper device (even after initially being correctly penetrated) to be placed outside the bridge and thus not subsequently mounted on the bridge. In contrast, in the case of a closed opening, the bearing receptacle is surrounded by the funnel-shaped mounting attachment and/or the auxiliary surface and, once the threading of the bearing receptacle onto the bearing bridge has been successfully carried out, the correct mounting is positively brought about.

According to another aspect, a holding device for a damper arrangement of a belt mechanism of a belt drive is proposed, which holding device has at least the following components:

-a wall element; and

at least one support element having a support bridge with a support axis, wherein a support receptacle of the vibration damper device, which is received on the support bridge, can be pivoted about the support axis,

wherein the carrier element is firmly connected to the wall element and has a mounting end axially opposite the bearing bridge.

The holding device is characterized in that the mounting end has a cone-shaped mounting attachment.

The holding device is now proposed, wherein the holding device comprises a wall element. The holding device is designed to pivotably mount a damper device for a return section of a belt mechanism of the belt drive such that the damper device can follow the movement of the return section to be damped. The bearing bridge is set up in correspondence with the bearing receptacle of the damper device. The bearing bridge is designed such that the bearing receptacle can be pivoted on the bearing bridge about a bearing axis. For this reason, reference is made, without excluding generality, to the above description of the damper device and the bearing bridge and their function in a belt drive. The bearing axis of the bearing bridge corresponds in a first approximation to the pivot axis for the damper device, with reference to the (optionally) superimposed translational movement as explained at the outset.

In one embodiment, the wall element is part of a transmission housing, for example part of a so-called basic housing or alternatively a housing cover. Alternatively, the wall is part of a mounting aid in a belt drive or a pre-mounted structural unit of the belt drive (comprising at least the conical disk pair, the belt mechanism and the at least one damper device) for mounting the belt mechanism in the drive housing.

The wall element is firmly connected to the carrier element, for example integrally formed with the wall element, clamped, screwed or held (at least positively) between axially opposite walls of the transmission housing. The support element comprises a bearing bridge, wherein the bearing bridge is fixed relative to the wall element or (in operation) relative to the transmission housing, or the bearing bridge itself is movable, for example pivotable. In this embodiment, the support bridge has a non-circular, preferably rectangular or square cross section, so that a relative rotation between the damper device and the support bridge is prevented. However, the translational relative movement between the damper device and the bearing bridge is preferably free.

In one embodiment of the belt drive, a single bearing bridge for the (single) damper device is included. In a further embodiment, one bearing bridge is provided for each return path of the belt drive, wherein the (single) holding device comprises two bearing bridges, or two holding devices are provided with one bearing bridge each.

Axially opposite the wall element, the holding device has axially opposite mounting ends, to which the carrier element is firmly connected. The mounting end of the holding device is embodied such that it has a cone as a mounting attachment. The cone-shaped mounting attachment is formed such that, or rather at the free axial end (mounting end) of the carrier element, a tapering cone is provided, for example with a central bearing axis. It should be noted that the cone does not necessarily have to be a cone with a circular base surface, but in one embodiment is pyramid-shaped with an inclined cone vertical axis, a free-formed base surface or even embodied free-formed as a whole. The cone shape is therefore wider at its connection (corresponding to the base surface in the case of a cone shape or pyramid shape) on the carrier element than in the open end (tip) of the bearing receptacle to be guided onto, wherein preferably a continuous, particularly preferably continuously decreasing transition is formed from the tip to the connection. The tip is preferably embodied flat or rounded (with particularly preferably the axial direction perpendicular to the plane).

The cone-shaped mounting attachment is therefore designed such that the carrier element can be introduced into the bearing receptacle very simply (preferably blindly) when the vibration damper device is mounted. It should be noted that the damper device relates to a conventionally implemented damper device or alternatively to a damper device according to one of the above descriptions. It should also be noted that the mounting or positioning of the damper arrangement in the belt drive is simplified by means of the conical mounting attachment of the holding device.

In one embodiment, the cone-shaped mounting attachments are intended to be connected to corresponding (axially opposite) walls of the transmission housing, for example to a housing cover. In one embodiment, the connection (indirectly or directly to the mounting end) is formed by means of axial abutment, clamping and/or a screw connection.

In an advantageous embodiment of the holding device, it is furthermore provided that the carrier element has a first portion and a second portion separate from the first portion, wherein the first portion is firmly connected to the wall element and comprises a mounting end, and wherein preferably the separate second portion is firmly connected to the first portion by means of the mounting end, and/or wherein preferably the separate second portion is firmly connected to the axially opposite wall, in particular preferably to the housing cover.

For some installation situations, for example in the case of axially fixed damper devices, it is advantageous to use a multi-part retaining device. It is therefore proposed here that the carrier element of the holding device be designed in multiple parts, preferably in two parts. The carrier element then comprises a first (separate) section and a corresponding second (separate) section, wherein the sections are firmly connected to one another during operation.

In order to ensure a simplified installation, it is proposed that the first section is firmly connected to the wall element and comprises an installation end, i.e. a cone-shaped installation attachment. In this way, a simplified installation of the belt drive is ensured in the embodiment with the multi-part support element, or a blind installation of prefabricated parts into the base housing can be achieved. In this embodiment, the structural unit (comprising at least one damper device), for example a belt drive, is pre-mounted on the housing cover or the mounting aid, and the first sections of the at least one carrier element (in a corresponding number) are mounted in the basic housing. The structural unit is then applied to the first section via the cone-shaped mounting attachment. In one embodiment with a housing cover for the pre-installed structural unit, the second section of the carrier element is preferably installed and constitutes a belt drive, wherein the line of sight to the components in the interior of the drive housing is covered by the housing cover during installation (possibly blind installation), and wherein the position of the damper arrangement relative to the support bridge can now no longer be controlled (without having to be removed again).

In one embodiment, the first section comprises a bearing bridge, so that the second section is only set up for connection to the carrier element (i.e. to the first section) and/or to a corresponding wall of the transmission housing. In one embodiment, the supporting bridges are distributed over the first and second sections, wherein for example in each case one rail half of the damper device is supported on in each case one corresponding section.

In one embodiment, the first section is identical to the above-described embodiment of the carrier element, so that reference is made to the description there. The first section then (completely) comprises the bearing bridge.

In a preferred embodiment, the second, separate section is firmly connected to the first section by means of the mounting end. In one embodiment, the segments are connected to one another in a purely form-fitting manner, for example via the cone shape of the mounting attachment and a corresponding (for example funnel-shaped) receptacle, and are preferably supported axially (and possibly additionally radially) only via a corresponding wall of the transmission housing or are each connected fixedly to the transmission housing (already before or only after closing the transmission housing). In another embodiment, the two sections can be fixed to one another, for example by means of so-called countersunk screws (headless screws). For example, the mounting end at the first section may be accommodated by the receptacle at the second section, so that a (blind) mounting of the second section via the pyramid-shaped mounting attachment is also simplified.

In one embodiment, the two separate sections are not connected to one another during operation, or are in force-transmitting axial contact with one another only by means of an energy storage element (for example a helical compression spring).

In one embodiment, the second portion is firmly connected (e.g., detachably) to the axially opposite wall, preferably to the housing cover. For example, the belt drive together with the damper device is pre-mounted on the second section of the carrier element and subsequently (e.g. blindly) mounted on the mounting end of the first section.

In one embodiment, the second section also comprises a mounting end, whereby (pre-) mounting of the damper device on the second section is facilitated.

In an advantageous embodiment of the holding device, it is furthermore proposed that the holding device further comprises a first axial stop and a second axial stop, which are arranged on both axial sides of the bearing bridge for limiting the axial movement of the accommodated damper arrangement, wherein in the holding device according to the embodiment described above the first section comprises the first axial stop and particularly preferably the second section comprises the second axial stop.

According to one embodiment, at least one of the segments has an axial stop, by means of which the axial path of the damper device accommodated on the bearing bridge is delimited in a predetermined manner. In one embodiment, two axial stops are provided on both axial sides of the respective section, by means of which the accommodated damper device is axially locked or fixed. By virtue of the fact that the axial stop according to the described embodiment is part of the section concerned (preferably integrally or separately axially fixed), on the one hand the installation effort is low and on the other hand the axial position of the accommodated damper arrangement is set very precisely (i.e. determined by the production of the transmission housing half).

In a preferred embodiment, the first section comprises at least a first axial stop for limiting the axial movement of the accommodated damper device and is already positioned before the damper device is mounted on the first section via the cone-shaped mounting attachment. In a particularly preferred embodiment, the second section further comprises a second axial stop. Thereby preventing axial movement of the damper device in both axial directions. The respective axial stop is preferably in each case one-piece or pre-mounted with the associated section of the carrier element. It should be noted that the two sections are not necessarily connected to one another, but rather, for example, project from the respective wall toward one another and are spaced apart from one another or merely contact one another.

According to a further aspect, a transmission housing is proposed, which has at least the following components:

-a basic housing;

a housing cover, wherein a transmission space for the belt transmission is enclosed by means of the basic housing and the housing cover; and

the holding device according to the above-described embodiment, wherein the basic housing or the housing cover comprises a wall element.

The components of the belt drive are typically surrounded and/or supported by a (e.g., separate) drive housing. The transmission input shaft and the transmission output shaft extend from the outside into the transmission housing and are preferably supported on the transmission housing by means of bearings. The conical disk pairs are enclosed by means of a transmission housing, and the transmission housing preferably forms a bearing for the axial actuation of the movable conical disk (slack disk). Furthermore, the transmission housing preferably forms a connection for fastening the belt transmission and is used, for example, for supplying hydraulic fluid. For this purpose, the transmission housing has a plurality of boundary conditions and must be adapted to a predetermined installation space.

The transmission housing here comprises a basic housing with an axial extension (for example a so-called transmission pot). In this case, the wall section of the basic housing overlaps with the majority of the components of the belt drive in the axial direction (pot-like).

Furthermore, the transmission housing comprises a housing cover. The gear space can be enclosed by means of a housing cover, which is embodied in a corresponding manner to the basic housing. The closed transmission space is realized by means of the housing cover and the basic housing, so that the belt transmission in the transmission space is protected from interference. The surrounding wall of the transmission housing is preferably formed exclusively by the base housing and the housing cover.

A wall element is provided in the gear space, so that the holding device can be connected to the gear housing by means of the wall element. In one embodiment, the wall element is formed in one piece with the base housing. In an alternative embodiment, the wall element is formed integrally with the housing cover.

By means of the wall element, a pre-installation of the holding device can be achieved in the transmission space, so that pre-installed components of the belt transmission can likewise be applied to the holding device. Thus, a more accurate mounting of the belt drive into the drive housing can be achieved. It should be pointed out that in one embodiment, the remaining components of the belt drive can be pre-installed in the basic housing and the bearing bridge is firmly connected with the housing cover, wherein the bearing bridge then penetrates (for example blindly) into the corresponding bearing receptacle of the vibration damper device together with the housing cover via the mounting attachment (funnel-shaped in the vibration damper device and cone-shaped in the holding device). Alternatively, in one embodiment, the remaining components of the belt drive can be pre-mounted on the housing cover and the bearing bridges are firmly connected with the basic housing, wherein then the bearing receptacles of the damper device are threaded together with the housing cover via the mounting attachments (funnel-shaped in the damper device and cone-shaped in the holding device) onto the corresponding bearing bridges provided in the basic housing. In an advantageous embodiment, the pre-mounting is performed by means of the second section of the carrier element according to the embodiments described above.

It should be noted that in an advantageous embodiment, both funnel-shaped mounting attachments are provided at the damper device and cone-shaped mounting attachments are provided at the mounting end of the holding device. Alternatively, only one of the mounting attachments is provided.

According to another aspect, a belt drive for a drive train is proposed, which has at least the following components:

-a transmission input shaft having a first pair of conical discs;

-a transmission output shaft having a second pair of conical discs;

a belt mechanism by means of which the first conical disk pair is connected with the second conical disk pair in a torque-transmitting manner; and

a damper device which is mounted on the mounting bridge of the holding device, wherein the damper device is implemented according to the above-described embodiment and/or the holding device is implemented according to the above-described embodiment; and

a transmission housing, preferably according to the embodiment according to the above description, in which the above-mentioned components are accommodated and/or supported,

the damper device for damping the belt mechanism is in contact with at least one sliding surface of the damper device at the return section of the belt mechanism.

With the belt drive proposed here, a torque can be transmitted from the transmission input shaft to the transmission output shaft in an increasing or decreasing manner and vice versa, wherein the transmission can be set at least partially steplessly. The belt drive is, for example, a so-called CVT with a traction mechanism or a metal belt. The belt means is for example a multi-link chain. The belt mechanism is pushed on the conical disk pairs in each case in opposite directions from the radially inner side to the radially outer side and vice versa, so that a variable effective circle appears on the respective conical disk pair. The ratio of the torque to be transmitted is derived from the ratio of the effective circles. The two active circles are connected to one another by means of the upper and lower return sections of the belt mechanism, namely the tensioning and slack return sections, which are also referred to as traction or push return sections.

Ideally, the return path of the belt structure is oriented tangentially between two effective circles. The tangential orientation is superimposed on the shaft vibrations which are generated, for example, by the limited division of the belt mechanism and the premature departure from the effective circle due to the escape acceleration by the belt mechanism.

The damper device is designed to abut with at least one sliding surface thereof against a corresponding abutment surface of the return path section to be damped, for example the tensioned return path section, so that such shaft vibrations are damped or at least damped. Furthermore, for one application, a transverse guide is also provided, i.e. a guide surface is provided on one or both sides in a plane parallel to the formed belt circle of the belt mechanism. Then, a sliding channel is thereby formed in the case of a sliding rail having an outer sliding surface and an inner sliding surface. The return section is therefore guided in a parallel plane relative to the sliding surface, and the travel direction of the return section lies in said parallel plane. For the best possible damping, the sliding surface is designed to be as close as possible to the return path of the belt mechanism. Alternatively, the damper device is axially fixed and the guided return section can be moved (axially) relative to the damper device.

In order to be able to follow the orientation of the return path, the holding device forms a pivot bearing on which the damper device is supported with its bearing receptacle so that the pivoting movement according to the above description can be carried out.

The components of the belt drive are typically surrounded and/or supported by a drive housing. For example, a holding device (also referred to as a pivot bearing) for the bearing receptacle is fastened and/or movably mounted as a holding tube on the transmission housing. The transmission input shaft and the transmission output shaft extend from the outside into the transmission housing and are preferably supported on the transmission housing by means of bearings. The conical disk pairs are enclosed by means of a transmission housing, and the transmission housing preferably forms a bearing for the axial actuation of the movable conical disk (slack disk). Furthermore, the transmission housing preferably forms a connection for fastening the belt transmission, for example for supplying hydraulic fluid. For this purpose, the transmission housing has a plurality of boundary conditions and must be adapted to a predetermined installation space. The inner wall limiting the shape and movement of the part results from said mutual cooperation.

The belt drive proposed here has one or two damper devices, wherein at least one damper device and/or at least one retaining device is/are implemented according to the above description, so that the installation is simplified by means of at least one installation accessory and, in particular, blind installation is possible. This is particularly advantageous in the case of narrow installation space ratios and in retrofitting, for example in the case of replacement of conventional transmissions by the belt transmission proposed here. Furthermore, a damper device with a funnel-shaped mounting attachment or a retaining device with a cone-shaped mounting attachment can be used simply instead of a conventional damper device or a conventional retaining device, without major structural changes or the like.

According to another aspect, a drive assembly is provided, having: the invention relates to a belt drive having at least one drive machine, at least one consumer and according to the embodiments described above, wherein the machine shaft can be connected to the at least one consumer for transmitting torque by means of the belt drive with a variable transmission ratio, preferably a continuously variable transmission ratio.

The drive train is designed to transmit the torque which is provided by the drive machine, for example an internal combustion engine and/or an electric drive, and which is output via its machine shaft, for example an internal combustion engine shaft and/or an (electric) rotor shaft, depending on the required use, i.e. taking into account the required rotational speed and the required torque. For example, one use is a generator for providing electrical energy. In order to transmit torque in a targeted manner and/or by means of a transmission with different transmission ratios, the use of the above-described belt drive is particularly advantageous, since a large transmission spread can be achieved in a small space and the drive machine can be operated in a small optimum rotational speed range. Conversely, by means of a correspondingly designed torque transmission system, the inertial energy introduced by the drive wheels, for example, can also be absorbed by means of a belt drive into a generator for recuperation, i.e., electrical storage of the braking energy. In addition, in a preferred embodiment, a plurality of drive machines are provided which can be operated in series or parallel or decoupled from one another and whose torque can be provided as required by means of the belt drive according to the above description. An example of an application is hybrid drive, which comprises an electric drive machine and an internal combustion engine.

The drive train proposed here comprises a belt drive having one or two damper devices, wherein at least one damper device and/or at least one retaining device is/are implemented according to the above description, so that the installation is simplified by means of at least one installation accessory and, in particular, blind installation is possible. This is particularly advantageous in the case of narrow installation space ratios and in retrofitting, for example when replacing a conventional transmission with the belt transmission proposed here. Furthermore, a damper device with a funnel-shaped mounting attachment or a retaining device with a cone-shaped mounting attachment can be used simply instead of a conventional damper device or a conventional retaining device, without major structural changes or the like.

According to a further aspect, a motor vehicle is proposed, which has at least one drive wheel which can be driven by means of a drive train according to the embodiment described above for propelling the motor vehicle.

At present, most motor vehicles have front-wheel drive, and the drive machine, for example an internal combustion engine and/or an electric drive, is arranged partially in front of the cab and transversely to the main direction of travel. The radial installation space is particularly small in this arrangement, so that it is particularly advantageous to use a belt drive with a small installation size. The use of a belt drive in a motorcycle is similarly designed, for which an increased power is always required while maintaining the same construction space as compared to previously known motorcycles. The problem is exacerbated with the mixing of the powertrain.

The problem is exacerbated in small car grades of passenger cars classified according to europe. The use of the plant in a small vehicle class passenger car is not significantly reduced in relation to a larger vehicle class passenger car. The installation space available in the compact vehicle is therefore significantly smaller. A similar problem arises in hybrid vehicles, in which a plurality of drive machines and clutches are provided in the drive train, so that the available installation space is reduced in comparison with non-hybrid motor vehicles.

The motor vehicle proposed here comprises a drive train having a belt drive with one or two damper devices, wherein at least one damper device and/or at least one retaining device is/are implemented according to the above description, so that the mounting is simplified by means of at least one mounting accessory and, in particular, blind mounting is possible. This is particularly advantageous in the case of narrow installation spaces and in retrofitting, for example when replacing a conventional transmission with the belt transmission proposed here. Furthermore, a damper device with a funnel-shaped mounting attachment or a retaining device with a cone-shaped mounting attachment can be used simply and alternatively for a conventional damper device or a conventional retaining device without structural changes or without major structural changes.

The passenger cars are assigned vehicle classes according to, for example, size, price, weight and power, wherein the definitions vary continuously according to market demands. In the us market, vehicles of the class of small and miniature vehicles according to the european classification are assigned to the class of ultra-small vehicles, whereas in the uk market they correspond to the ultra-miniature class or the city class. Public up! Or reynolds Twingo is an example of a miniature vehicle class. MiTo, volkswagen Polo, ford Ka +, or Reynolds Clio are examples of small car classes. The bme 330e or the yota Yaris Hybrid are known as Hybrid vehicles. For example, audia 6 TFSI e or bmax 2 xDrive25e are known as mild hybrid vehicles.

Drawings

The invention described above is explained in detail below in the related art background with reference to the associated drawings showing preferred embodiments. The invention is not in any way restricted to the purely schematic drawing, in which it should be pointed out that the drawing is not dimensionally precise and is not suitable for defining dimensional proportions. The figures show:

FIG. 1 illustrates a damper device on a load bearing member;

FIG. 2 shows a detail view of the bearing receivers on the carrying elements;

FIG. 3 shows a belt drive in a drive housing;

FIG. 4 shows a transmission housing with a retaining device having a separate carrier element;

FIG. 5 shows in a schematic view a damper device in a belt drive; and

fig. 6 shows a powertrain in a motor vehicle having a belt drive.

Detailed Description

In fig. 1, the damper arrangement 1 is shown in a perspective view on a carrier element 19. According to the figure, the transverse direction 13 extends from top to bottom; orthogonal thereto, the axial direction 11 extends from the left to approximately the right and downwards from the image plane. Again orthogonal thereto, the direction of travel 12 extends here approximately to the lower left out of the image plane. The coordinate system is selected here such that the bearing axis 20 extends parallel to the axial direction 11. The vibration damper arrangement 1 comprises a bearing receptacle 8, wherein the bearing receptacle 8 is designed to receive a bearing bridge 9. The bearing bridge 9 is thereby comprised by the carrier element 19 and is arranged about the bearing axis 20 or the pivot axis 42. In the embodiment described, the carrier element 19 is embodied as a cylinder with a cylinder axis coaxial with the bearing axis 20.

In the exemplary embodiment, the carrier element 19 comprises a mounting end 21 at an axial end (visible here), wherein the carrier element 19 is embodied in the mounting end 21 as a cone-shaped mounting attachment 22.

The bearing receptacles 8 of the vibration damper device 1 are designed to cooperate with the bearing bridges 9 in such a way that they can achieve a corresponding (passive) orientation of the inner sliding surface 4 and the outer sliding surface 5 of the vibration damper device 1 relative to the return path 6,7 (not shown here) to be guided. The vibration damper arrangement 1 can thus be pivoted about the axial direction 11 by means of the bearing receptacle 8 in cooperation with the received bearing bridge 9. The bearing seat 8 is embodied here such that it comprises a bearing surface 44. The bearing surface 44 is in contact with the bearing bridge 9 of the carrier element 19. In a preferred embodiment, the vibration damper arrangement 1 comprises a funnel-shaped mounting attachment 14, which is designed to position the vibration damper arrangement 1 on the carrier element 19 or on the bearing bridge 9, radially around the bearing receptacle 8 (here, optionally completely). The bearing receptacle 8 is here (purely optionally) a closed opening 16.

The auxiliary surface 15 is arranged outside the funnel-shaped mounting attachment 14 (here, it is merely optionally arranged directly adjacent to the funnel-shaped mounting attachment). The axial direction 11 is oriented perpendicular to the auxiliary surface, i.e. expanded by the direction of travel 12 and the transverse direction 13 or parallel to such a plane of expansion. By means of the auxiliary surface 15, on the one hand, the contact surface that assists in the (blind) installation is increased and, on the other hand, sliding off (due to the inclination opposite to the inclination of the funnel-shaped mounting attachment 14) is prevented. The funnel-shaped mounting attachment 14 is here purely optionally completely surrounded by the auxiliary surface 15.

The damper arrangement 1 shown here (independently of the characteristics mentioned above) has a first track half 45 and a second track half 46, wherein a connecting device is provided, by means of which the two

track halves

45, 46 are fixed axially and in the travel direction 12 relative to one another, wherein the first track half 45 and the second track half 46 are formed (purely optionally) identically here.

The damper device 1, which is embodied here (independently of the above-mentioned properties) as a slide rail, has an outer slide surface 5 and a counter-directionally oriented inner slide surface 4, whereby a slide channel 47 (see fig. 3) is formed for damping the

return sections

6, 7. The sliding

surfaces

4,5 are connected by means of a first web 48 and a second web 49, which are axially spaced apart from one another.

Fig. 2 shows a detail view according to fig. 1 of the bearing receptacle 8 on the support element 19. The bearing axis 20 is oriented in such a way that it coincides with the pivot axis 42 and is oriented perpendicular to the image plane. Without excluding generality, purely for the sake of overview, the bearing receptacle 8 is largely identical to the damper device 1 shown in fig. 1, so that reference is made to the description there for this. A support element 19 is accommodated in the bearing receptacle 8 or in the opening 16 thereof, wherein the support element 19 comprises a support bridge 9 which is in contact with the support surface 44 of the bearing receptacle 8.

In the embodiment shown here, the bearing receptacle 8 comprises a funnel-shaped mounting attachment 14, which is embodied over the entire extension of the opening 16, i.e. circumferentially. It should be noted that the length of the inclined surface and/or the angle of inclination of the funnel-shaped mounting attachment 14 need not be constant all round, but may be variable, for example.

The carrier element 19 has a conical mounting attachment 22 at its (axial) mounting end 21 (remote from the damper device 1). The conical mounting attachment 22 is designed such that it makes it possible to easily insert the bearing receptacle 8 onto the bearing bridge 9 or to overcome incorrect mounting when the vibration damper arrangement 1 is (blind-) mounted. Furthermore, a flat auxiliary surface 15 is provided next to and (optionally completely) surrounding the funnel-shaped mounting attachment 14 on the damper device 1, wherein incorrect mounting of the damper device 1 on the carrier bridge 9 can likewise be prevented by means of the auxiliary surface 15.

In fig. 3, the belt drive 3 is shown in the drive housing 10, wherein the position of the conical disk pairs 33 is plotted. Two damper devices 1 are provided for each of the

return sections

6,7, wherein each damper device 1 is supported by a support bridge 9, as shown, for example, in fig. 1 and/or 2.

The transmission housing 10 comprises a basic housing 28 which has an axial extension and is embodied here as a so-called transmission pot. The transmission housing 10 may be closed by a housing cover 25. A closed transmission space 29 is realized by means of the housing cover 25 and the basic housing 28, so that the belt transmission 3 in the transmission space 29 is protected against interference. In the embodiment shown, an axially oriented wall section of the basic housing 28 overlaps in the axial direction (pot-shaped) with a component of the belt drive 3 to be arranged in the drive space 29.

The wall element 18 of the retaining device 17 is formed in one piece with or connected to the lower wall of the basic housing 28 according to the illustration. The respective carrier element 19 is firmly connected to the basic housing 28. For example, the preassembled structural unit of the belt drive 3 (here the cone disk pairs 33, 34, the belt mechanism 2 and the damper arrangement 1 are shown) can be introduced into the drive space 29 together with the housing cover 25 or before its installation and should be threaded onto the carrier element 19 of the holding device 17 here with a limited or invisible view. This is facilitated by the conical mounting attachment 22 at the respective mounting end 21 of the carrier element 19.

Irrespective of the characteristics mentioned above, the damper arrangement 1 is designed as an axially driven damper arrangement 1 and for this purpose has, on its

webs

48, 49, on the inside (i.e. toward the respective return section 6, 7), on the left and right in the axial direction, a first axial sliding surface 50 or a second axial sliding surface 51 next to the inner sliding surface 4 (and the purely optional outer sliding surface 5) for abutting against the

respective return section

6, 7.

Fig. 4 shows a transmission housing 10 with a holding device 17 with separate carrier elements 19, i.e. with in each case one first portion 23 and a separate second portion 24. In the illustrated illustration, the gear housing 10 is shown in an exploded view on the left according to the illustration, and the gear housing 10 is shown in the mounted state on the right according to the illustration (without the remaining components of the belt drive 3 for the sake of overview).

Without excluding generality, purely for the sake of overview, the transmission housing 10 is largely identical to the embodiment shown in fig. 3, so that reference is made to the description there for this.

The wall element 18 of the retaining device 17 is formed in one piece with or connected to the lower wall of the basic housing 28 according to the illustration. The first section 23 of the respective support element 19 is firmly connected to the basic housing 28. The second section 24 of the respective support element 19 is preassembled or separately from the housing cover 25 and is transferred into the position shown on the right.

In the embodiment shown, the first axial stop 26 is connected to the first section 23 and the second axial stop 27 is connected to the second section 24 (purely optionally and independently of the characteristics mentioned above). A particularly simple assembly of the vibration damper arrangement 1 to be axially fixed during operation is thereby possible.

Fig. 5 shows a damper arrangement 1 (for example, according to fig. 1 and 2) in a belt drive 3 in a schematic representation, wherein a return section 6 of the belt mechanism 2 is guided by means of the damper arrangement 1 so as to be damped. The belt drive 3 is enclosed in a drive housing 10 which delimits the available installation space. The belt mechanism 2 connects the first conical disk pair 33 with the second conical disk pair 34 in a torque-transmitting manner. In the case of the first conical disk pair 33, which is connected in a torque-transmitting manner to the transmission input shaft 31, for example, so as to be rotatable about the input-side (first) axis of rotation 52, there is a first (small) effective circle 54, on which the belt mechanism 2 runs, by way of corresponding spacings in the axial direction 11 (corresponding to the orientation of the axes of rotation 52, 53). At the second conical disk pair 34, which is connected in a torque-transmitting manner to the transmission output shaft 32, for example, so as to be rotatable about an output-side (second) axis of rotation 53, there is a second (correspondingly large) effective circle 55, by corresponding spacing in the axial direction 11, on which the belt mechanism 2 runs. The (variable) ratio of the two

effective circles

54, 55 results in the transmission ratio between the transmission input shaft 31 and the transmission output shaft 32.

The first return path 6 and the second return path 7 (guided therein) are shown in the ideal tangential orientation between the two conical disk pairs 33, 34, so that a parallel orientation of the directions of travel 12 (shown and belonging to the first return path 6) occurs. The transverse direction 13 shown here is defined as a third spatial axis perpendicular to the direction of travel 12 and perpendicular to the axial direction 11, wherein this is understood to be a coordinate system which moves together (with respect to the effective circle). Thus, both the illustrated direction of travel 12 and the transverse direction 13 are only applicable to the illustrated damper device 1 (here embodied as a slide rail) and the first return section 6, to be precise only to the illustrated case of the set input-side effective circle 54 and the corresponding output-side effective circle 55. The damper arrangement 1, which is embodied as a slide rail, with its outer sliding surface 5 and its counter-oriented inner sliding surface 4 bears against the first return section 6 of the belt means 2, so that a sliding channel 47 for damping of the first return section 6 is formed. In order to be able to follow a variable tangential orientation, i.e. the direction of travel 12, when the

effective circles

54, 55 change, the bearing receivers 8 are supported on a holding device 17 with a pivot axis 42, for example a bearing bridge 9 according to the embodiment according to fig. 1 to 4. Thereby, the damper device 1 is supported pivotably about the pivot axis 42. In the exemplary embodiment shown, the pivoting movement consists of a superposition of a pure angular movement and a transverse movement, so that a movement along an elliptical (steeper) curved path occurs in contrast to a movement along a circular path.

In the exemplary illustrated circumferential direction 56 and in the case of a torque input via the transmission input shaft 31, the damper arrangement 1 in the illustration forms an inlet on the left and an outlet on the right. In the embodiment driven as a traction mechanism, the return path section 6 to be guided then forms a tensioned return path section 6 as a traction return path section, and the other return path section 7 forms a slack return path section 7. In the embodiment of the belt mechanism 2 as a metal belt, under otherwise identical conditions, either the return path 6 to be guided is guided as a slack return path 7 by means of the damper device 1, or the return path 6 to be guided is implemented as a tension return path 6 and a push return path, and:

upon input of torque via the first cone disk pair 33, the winding direction 56 and the travel direction 12 are reversed; or

The transmission output shaft 32 and the transmission input shaft 31 are exchanged, so that the second conical disk pair 34 forms a torque input section.

Fig. 6 shows a drive train 30 in a motor vehicle 41 with a belt drive 3. The motor vehicle 41 has a longitudinal axis 57 and a motor axis 58, wherein the motor axis 58 is arranged in front of a cab 59. The drive train 30 comprises a first drive machine 35, which is preferably embodied as an internal combustion engine 35 and is then connected on the input side to the belt drive 3, for example, via an internal combustion engine shaft 37, in a torque-transmitting manner. The second drive motor 36, which is preferably designed as an electric drive motor 36, is then connected to the belt drive 3, for example, likewise via a rotor shaft 38, in a torque-transmitting manner. The torque for the drive train 30 is output simultaneously or at different times by means of the

drive machines

35, 36 or via their machine shafts 37, 38. However, it is also possible to absorb the torque, for example by means of an internal combustion engine 35 for engine braking and/or by means of an electric drive 36 for recovering braking energy. On the output side, the belt drive 3 is connected to a drive output, which is only schematically illustrated, so that the left drive wheel 39 and the right drive wheel 40 can be supplied with torque from the

drive machines

35, 36 with a variable transmission ratio.

By means of the damper device or the holding device proposed here, a particularly simple and reliable installation can be achieved.

List of reference numerals

1. Vibration damper apparatus

2. Belt mechanism

3. Belt transmission device

4. Inner sliding surface

5. Outer sliding surface

6. First return section

7. Second return section

8. Support member accommodating portion

9. Supporting bridge

10. Transmission device shell

11. Axial direction

12. Direction of travel

13. In the transverse direction

14. Funnel-shaped mounting accessory

15. Auxiliary surface

16. Opening of the container

17. Holding device

18. Wall element

19. Bearing element

20. Bearing axis

21. Mounting end

22. Conical mounting attachment

23. First section

24. Second section

25. Shell cover

26. First axial stop

27. Second axial stop

28. Basic housing

29. Space of transmission device

30. Power assembly

31. Transmission input shaft

32. Output shaft of transmission device

33. First conical disk pair

34. Second conical disk pair

35. Internal combustion engine

36. Electric driving machine

37. Internal combustion engine shaft

38. Rotor shaft

39. Left driving wheel

40. Right driving wheel

41. Motor vehicle

42. First pivot axis

43. Second pivot axis

44. Bearing surface

45. First track half

46. Second track half

47. Sliding channel

48. First web

49. Second web

50. First axial sliding surface

51. Second axial sliding surface

52. First axis of rotation

53. Second axis of rotation

54. First effective circle

55. Second effective circle

56. Direction of circulation

57. Longitudinal axis

58. Motor axis

59. Driver's cabin

Claims

1. A damper device (1) for a belt mechanism (2) of a belt drive (3), said damper device having at least the following components:

-at least one sliding surface (4,5) which is set up for the vibration-damped abutment at a return section (6,7) of the belt means (2); and

-a bearing receptacle (8) which is pivotably mounted on a bearing bridge (9) of a transmission housing (10) of a belt transmission (3) about an axial direction (11) for orienting the sliding surface (4,5) in relation to the orientation of the return section (6) to be damped such that the sliding surface (4,5) defines a travel direction (12) for the return section (6) to be damped which is perpendicular to a transverse direction (13),

it is characterized in that the preparation method is characterized in that,

the bearing receptacle (8) has an axially oriented funnel-shaped mounting attachment (14).

2. A shock absorber device (1) according to claim 1 wherein

An auxiliary surface (15) is arranged outside the funnel-shaped mounting accessory (14),

wherein the auxiliary surface (15) is oriented in the following plane: the axial direction (11) is oriented perpendicular to the plane.

3. The shock absorber device (1) according to claim 1 or claim 2, wherein

A closed opening (16) for accommodating the bearing bridge (9) is surrounded by the bearing receptacle (8) and preferably by the funnel-shaped mounting attachment (14).

4. A holding device (17) for a damper arrangement (1) of a belt mechanism (2) of a belt drive (3), which holding device has at least the following components:

-a wall element (18); and

-at least one carrier element (19) having a bearing bridge (9) having a bearing axis (20), wherein a bearing receptacle (8) of a shock absorber device (1) accommodated on the bearing bridge (9) is pivotable about the bearing axis (20),

wherein the carrier element (19) is firmly connected to the wall element (18) and has a mounting end (21) axially opposite the bearing bridge (9),

it is characterized in that the preparation method is characterized in that,

the mounting end (21) has a conical mounting attachment (22).

5. Holding device (17) according to claim 4, wherein

The carrier element (19) has a first section (23) and a second section (24) that is separate from the first section,

wherein the first section (23) is firmly connected with the wall element (18) and comprises the mounting end (21), an

Wherein preferably the second, separate section (24) is firmly connected with the first section (23) by means of the mounting end (21) and/or

Wherein preferably the second, separate section (24) is firmly connected to the axially opposite wall, particularly preferably to the housing cover (25).

6. Holding device (17) according to claim 4 or claim 5, wherein

The holding device (17) further comprises a first axial stop (26) and a second axial stop (27) which are arranged on both axial sides of the bearing bridge (9) for limiting the axial movement of the accommodated vibration damper arrangement (1),

wherein in the holding device (17) according to claim 5 the first section (23) comprises the first axial stop (26) and particularly preferably the second section (24) comprises the second axial stop (27).

7. A transmission housing (10) having at least the following components:

-a basic housing (28);

-a housing cover (25), wherein a transmission space (29) for a belt transmission (3) is enclosed by means of the basic housing (28) and the housing cover (25); and

-the holding device (17) according to any one of claims 4 to 6, wherein the basic housing (28) or the housing cover (25) comprises the wall element (18).

8. A belt drive (3) for a powertrain (30), the belt drive having at least the following components:

-a transmission input shaft (31) having a first pair of conical discs (33);

-a transmission output shaft (32) having a second pair of conical discs (34);

-a belt mechanism (2) by means of which the first conical disk pair (33) is connected with the second conical disk pair (34) in a torque-transmitting manner; and

-a damper device (1) supported on a supporting bridge (9) of a holding device (17), wherein the damper device (1) is embodied according to any one of claims 1 to 3 and/or the holding device (17) is embodied according to any one of claims 4 to 6; and

-a transmission housing (10), preferably according to claim 7, in which the above-mentioned components are accommodated and/or supported,

wherein the damper device (1) for damping the belt means (2) is in contact with at least one sliding surface (4,5) thereof on the return section (6) of the belt means (2).

9. A powertrain (30) having: at least one drive machine (35, 36) having in each case one machine shaft (37, 38); at least one consumer (39, 40); and a belt drive (3) according to claim 8,

wherein the machine shaft (37, 38) can be connected with the at least one consumer (39, 40) for torque transmission by means of the belt drive (3) with a variable transmission ratio, preferably a continuously variable transmission ratio.

10. A motor vehicle (41) having at least one drive wheel (39, 40) drivable by means of a drive train (30) according to claim 9 for propelling the motor vehicle (41).