Planetary gear device, in particular for motor vehicle, and motor vehicle

Abstract

The invention relates to a planetary gear device (10), comprising: a housing (12); a planet carrier (18) forming a first axis of the planetary gear device (10) and rotatably supported about a main axis of rotation (20), the planet carrier having a pin carrier (30) and planet gear pins (34) on which planet gears (38) are rotatably supported; a dog clutch (42), which has a first dog toothing (44) connected to the planet carrier (18) in a permanently rotationally fixed manner and is designed to connect the planet carrier (18) to another shaft of the planetary gear (10) or to the housing (12) in a rotationally fixed manner; and an oil collecting ring (46) which is designed in one piece together with the first claw toothing (44), the planetary gear arrangement comprising a flat retaining disc (54) which is designed in one piece together with the first claw toothing (44) and which is designed to axially fix the planet gear pins (34).

Description

TECHNICAL FIELD

[0001] The invention relates to a planetary gear device according to the preamble of patent claim 1, in particular for a motor vehicle. The invention also relates to a motor vehicle, in particular a car, having at least one such planetary gear device. BACKGROUND

[0002] From DE 10 2016 216 789 A1 and DE 10 2019 008 948 A1 each a planetary gear device is known, in which a dog clutch is connected in a torque-proof manner to a planet carrier. DE 10 2009 001 985 A1 shows a planetary gear device, in which a dog clutch device is connected in a torque-proof manner to a planet carrier.

[0003] From DE 10 2019 205 760 A1 a lubricating device for a planetary gear device is known, which has at least one planet carrier, which has a respective bearing for rotatably supporting one or more planet gears. SUMMARY

[0004] It is an object of the invention to create a planetary gear device and a motor vehicle having at least one such planetary gear device, which enables a particularly large range of functions to be implemented in a particularly installation space-saving manner.

[0005] This object is achieved by a planetary gear device having the features of patent claim 1 and a motor vehicle having the features of claim 10. Advantageous design solutions having suitable refinements of the invention are given in the remaining claims.

[0006] A first aspect of the invention relates to a planetary gear device, in particular for a motor vehicle. This means that a motor vehicle, which is also referred to simply as a vehicle and which is designed, for example, as a car, in particular as a passenger car, has a planetary gear device in its completely finished state and can be driven, for example, via the planetary gear device. In particular, it can be provided that the motor vehicle has a drive device in its completely finished state, by means of which the motor vehicle can be driven. The drive device has a planetary gear device. For example, the drive device has at least one drive machine, by means of which the motor vehicle can be driven, for example, via the planetary gear device. The drive machine can be an internal combustion engine, which is also referred to as a combustion engine or combustion motor, or also an electric machine. In particular, at least two or exactly two wheels of the motor vehicle can be driven by the drive machine via the planetary gear device, as a result of which the entire motor vehicle can be driven.

[0007] The planetary gear device has a housing and a planet carrier, which forms a first shaft of the planetary gear device. In particular, the planet carrier is arranged at least partially in the housing. The planet carrier is rotatably supported relative to the housing about a main rotation axis of the planetary gear device. The planet carrier has a pin shaft holder and planet wheel pins. For example, the respective planet wheel pin is formed separately from the pin shaft holder and is fixed on the pin shaft holder, in particular in such a way that relative rotation between the respective planet wheel pin and the pin shaft holder is prevented, and preferably in such a way that a translational relative movement between the respective planet wheel pin and the pin shaft holder in the axial direction of the respective planet wheel pin is prevented. A respective planet gear, in particular exactly one respective planet gear, is rotatably supported on the respective planet wheel pin, such that the respective planet gear is rotatable relative to the respective planet wheel pin on which the respective planet gear is rotatably supported about a respective planet wheel rotation axis. In particular, the respective planet wheel rotation axis is arranged spaced apart from the main rotation axis and extends parallel to the main rotation axis. In particular, the planet wheel pins are formed separately from one another. For example, the planet wheel rotation axes are arranged on an imaginary circle, the center of which is located, for example, on the main rotation axis. For example, the planet wheel pins, and thus, for example, the planet wheel rotation axes, are arranged in succession, spaced apart from one another, in the circumferential direction of the planetary gear device extending about the main rotation axis, and in particular in a uniformly distributed manner. In particular, the planetary gear device has a sun wheel and a ring gear, wherein in particular it is provided that the respective planet gear meshes with the sun wheel and the ring gear, in particular simultaneously with the sun wheel and the ring gear.

[0008] The planetary gear device has a dog clutch, which has a first dog toothing permanently torsionally connected with the planet carrier. The dog clutch is designed to torsionally connect the planet carrier with a further shaft of the planetary gear device. Thereby, for example, the dog clutch is switchable between a coupled state and a decoupled state. In the coupled state, the planet carrier and thus the first shaft is torsionally connected with the further shaft by means of the dog clutch, such that in particular no relative rotation between the further shaft and the planet carrier or the first shaft about the main rotation axis takes place. In the decoupled state, the dog clutch releases the planet carrier and thus the first shaft from the further shaft in order to rotate relative to the further shaft, in particular about the main rotation axis. Alternatively, the dog clutch is designed to torsionally connect the planet carrier and thus the first shaft with the housing, such that in the coupled state of the dog clutch the planet carrier and thus the first shaft is torsionally connected with the housing by means of the dog clutch, i.e. is torsionally fixed on the housing. Thereby, in the coupled state, a relative rotation between the planet carrier and the housing, in particular about the main rotation axis, is prevented by means of the dog clutch. In the decoupled state, the dog clutch releases the planet carrier and thus the first shaft in order to rotate relative to the housing, in particular about the main rotation axis.

[0009] Furthermore, the planetary gear device also has an oil collecting ring, which is designed in one piece with the first claw toothing. In this connection, it is to be understood that the oil collecting ring and the first claw toothing are composed of a single part and, in turn, are composed by a structure designed in one piece, i.e. a structure composed of a single part and thus manufactured in one piece and thus designed as a one-piece structure. In other words, the first claw toothing and the oil collecting ring are not formed separately from one another and then connected to one another, but rather the oil collecting ring and the first claw toothing are composed of a single part and thus composed by a structure designed in one piece, i.e. a structure composed of a single part and thus designed as a one-piece structure.

[0010] In order to be able to realize a particularly large functional scope in a particularly space-saving manner, thus to present a particularly compact design of the planetary gear device, according to the application a flat, one-piece limit disk designed together with the first claw toothing is provided, which is designed to fix the planet pin axles, in particular on the pin axle carrier, in the axial direction, that is to say along the axial direction of the planetary gear device, which axial direction is perpendicular to the radial direction of the planetary gear device and coincides with the main rotational axis. In other words, for example, it is provided that the planet pin axles can be fixed or brought into a fixed state in the axial direction, in particular on the pin axle carrier, by means of the limit disk. The feature that the limit disk is a flat limit disk is in particular to be understood such that at least one axial end face of the limit disk, which faces the planet pin axles when viewed in the axial direction of the planetary gear device and thus along the main rotational axis, extends in a plane which extends perpendicular to the axial direction of the planetary gear device and thus perpendicular to the main rotational axis, wherein for example the axial end face of the limit disk bears, in particular directly, against the planet pin axles in the axial direction of the planetary gear device and for example also against the pin axle carrier, so that the planet pin axles are fixed in the axial direction, that is to say in the axial direction of the planetary gear device, on the pin axle carrier by means of the limit disk. This means that a translational relative movement between the respective planet pin axle and the planet carrier in the axial direction of the planetary gear device is prevented by means of the limit disk. The feature that the limit disk is designed one-piece together with the first claw toothing is to be understood such that the first claw toothing and the limit disk are not formed as separate parts which are connected to one another, but rather the first claw toothing and the limit disk are composed of a single part, in other words by a structure which is designed one-piece, that is to say composed of a single part and thus manufactured in one piece and thus designed as a one-piece structure. As a result, the number of components, the costs, the structural space requirement and the weight of the planetary gear device can all be kept particularly low. It can be seen that the limit disk has a dual function. On the one hand, the limit disk serves to fix the planet pin axles in the axial direction, in particular on the pin axle carrier. On the other hand, the limit disk serves to form the first claw toothing, so that the planet carrier can be connected to another shaft or housing in a form-fit manner and thus torsionally rigidly by means of the first claw toothing. As a result, a particularly large functional scope can be realized in a particularly compact, low-cost and lightweight manner.

[0011] The main rotational axis is the rotational axis of the planet carrier, about which the planet carrier can be rotated relative to the housing. Unless stated otherwise, the terms "axial" and "radial" are to be understood relative to the main rotational axis. Thus, the term "axial" refers to the axial direction of the planetary gear device which coincides with the main rotational axis, while the term "radial" refers to the radial direction of the planetary gear device which is perpendicular to the axial direction of the planetary gear device and thus also to the main rotational axis.

[0012] In the context of the present disclosure, the feature that two components are connected to each other in a torsionally rigid manner is to be understood as meaning that the components connected to each other in a torsionally rigid manner are arranged coaxially to each other and, in particular when the components are driven, rotate jointly or simultaneously about a common rotational axis, for example a main rotational axis, at the same angular velocity, in particular relative to the housing. The feature that two components are connected to each other in a torque-transmitting manner is to be understood as meaning that the components are coupled to each other in such a way that torque can be transmitted between the components, wherein the components are also connected to each other in a torque-transmitting manner when they are connected to each other in a torsionally rigid manner. The feature that two components are permanently connected to each other in a torque-transmitting manner is to be understood as meaning that there is no control element which can be switched between a coupled state in which the components are connected to each other in a torque-transmitting manner and a final coupled state in which no torque can be transmitted between the components by means of the control element, but rather the components are always or permanently connected to each other in a torque-transmitting manner, i.e. in such a way that torque can be transmitted between the components. Thus, for example, one of the components can be driven by the respective other component and vice versa. In particular, the feature that two components are permanently connected to each other in a torsionally rigid manner is to be understood as meaning that there is no shift element which can be switched between a coupled state in which the components are connected to each other in a torsionally rigid manner and a decoupled state in which the components are decoupled from each other and can rotate relative to each other, such that no torque can be transmitted between the components via the shift element, but rather the components are always or permanently connected or coupled to each other in a torsionally rigid manner. In other words, the term "torsionally rigid" is to be understood as meaning that two elements are connected to each other in such a way that they rotate at the same angular velocity, in particular about a component rotational axis, for example a main rotational axis, and / or about an axis of rotational symmetry, when they are arranged coaxially to each other, in particular relative to their component rotational axis, for example a main rotational axis, and / or relative to an axis of rotational symmetry, and are connected to each other in such a way that they always rotate at the same angular velocity. An element is connected to a housing in a torsionally rigid manner if the element cannot be twisted relative to the housing.

[0013] "Radial overlap" is to be understood as meaning that two elements, in particular elements which are at least approximately rotationally symmetrical, are arranged radially overlapping, in particular relative to each other, when they are at least partially arranged in the region of the same radial coordinate and in particular in the region of the same angular coordinate. In particular, "axial overlap" is to be understood as meaning that two elements are arranged axially overlapping, in particular relative to each other, when they are at least partially arranged in the region of the same axial coordinate.

[0014] Preferably, the planet carrier, in particular the pin shaft carrier, is made of aluminum and is produced therefrom, for example by aluminum die casting.

[0015] The stop disk, the oil collecting ring and the first claw toothing are advantageous components of a combination component, which is also referred to as a combination piece.

[0016] Furthermore, it is particularly preferred that the stop disk, the oil collecting ring and the first claw toothing are designed as one piece, particularly preferably made of steel as one piece.

[0017] The combination component, also referred to as the combination piece, serves on the one hand for the axial fixation of the planet pin and on the other hand for the formation of the first claw toothing. Thirdly, the combination component is also advantageously used for collecting oil or lubricant.

[0018] Furthermore, the combination component and the planet pin can be designed such that the combination component serves for the rotational fixation of the planet pin. To this end, the planet pin advantageously has axial protrusions, which are inserted into corresponding receptacles of the combination component, thereby preventing a torsion of the planet pin about its own axis of symmetry, i.e. the axis of rotational symmetry of a cylindrical planet pin. Preventing a torsion of the planet pin is important, since the planet pins each have at least one through hole for the delivery of lubricant to the respective rolling bearing, wherein these through holes must be arranged radially outwardly with respect to the main axis of rotation, at which location the lubricant collects under the action of centrifugal force.

[0019] The oil collecting ring of the combination component can advantageously be configured to assume the function of the receptacle for the rotational fixation of the planet pin.

[0020] In order to be able to realize a particularly advantageous functional realization range in a particularly installation space-saving manner, it is provided in one embodiment of the application that the first claw toothing is directed radially outwardly with respect to the main axis of rotation, i.e. extends outwardly in the radial direction of the planetary gear or projects outwardly from the base body of the stop disk.

[0021] A further embodiment is characterized in that the pin shaft carrier has a crown toothing. Thus, the crown toothing is arranged, for example, on a second axial end face of the pin shaft carrier, which faces, for example, in the axial direction toward the stop disk. The stop disk has, for example, first recesses designed as through holes, which are penetrated in the axial direction with respect to the main axis of rotation by the crown toothing. In other words, the crown toothing is inserted into the first recesses in the axial direction of the planetary gear, in particular such that the first recesses are penetrated, in particular completely penetrated, by the crown toothing in the axial direction of the planetary gear. Thereby, the stop disk is connected to the pin shaft carrier in a form-fit manner and, for example, torsionally fixed by means of the crown toothing and by means of the first recesses, so that the planetary gear can be embodied particularly compactly.

[0022] In the context of the present disclosure, ordinal numbers (also referred to as ordinal terms), such as "first", "second", etc., are not necessarily used to indicate or imply the number or amount of the members to which the ordinal numbers refer, but rather to be able to refer unambiguously to the concepts to which the ordinal numbers refer, i.e. the concepts to which these ordinal numbers refer.

[0023] Another embodiment is characterized in that the crown toothing, in particular the teeth of the crown toothing, has second recesses, which are arranged in the radial direction of the planetary gear, i.e. extend in the radial direction. The second toothing is designed to accommodate a retaining ring for axially fixing the flat limit disc and the planet pin shaft. In other words, for example, the retaining ring is inserted into the respective second recess in the radial direction of the planetary gear, so that, for example, the retaining ring is fixed in the crown toothing, and thus on the pin shaft carrier, in the axial direction of the planetary gear. By means of the retaining ring, the limit disc and, via the limit disc, the planet pin shaft are fixed on the pin shaft carrier in the axial direction, i.e. in the axial direction of the planetary gear, for example by the limit disc being axially supportable or supported on the one hand on the retaining ring and on the other hand on the respective planet pin shaft. Excessive relative movement in the axial direction between the pin shaft carrier and the respective planet pin shaft and between the limit disc and the pin shaft carrier is thus avoided, so that an advantageous axial fixing can be realized in a particularly space-saving manner.

[0024] Another embodiment is characterized in that the flat limit disc has a circular shape which is arranged coaxially to the main rotational axis, by means of which circular shape, for example, the aforementioned axial end face of the limit disc is formed. Here, the planet rotational axis of the planetary gear intersects an arrangement circle, in particular the arrangement circle which is common to the planet rotational axes, for example the aforementioned circle in which the planet rotational axes lie. The arrangement circle is arranged radially overlapping the limit disc, so that a particularly compact construction of the planetary gear can be realized.

[0025] The oil collecting ring is designed, for example, to collect oil centrifugally separated in a radial direction outwardly from the planet carrier and / or from the respective planet gear, for example, when the planet carrier is rotated about the main rotational axis relative to the housing and / or the respective planet gear is rotated about the respective planet wheel rotational axis relative to the respective planet wheel pin shaft, and to guide the oil, for example, to the respective planet wheel pin shaft, so that the respective planet wheel pin shaft can advantageously be lubricated. Furthermore, the stop disc is used, for example, to protect the respective planet wheel pin shaft from being twisted, in particular from being twisted relative to the pin shaft holder, i.e. from being twisted, in particular relative to the pin shaft holder, i.e. to prevent, in particular, twisting relative to the pin shaft holder. Thus, a plurality of advantageous functions can be integrated in a single component, namely the stop disc in the present case, so that a particularly compact construction of the planetary gear device can be achieved, i.e. a particularly compact design of the planetary gear device. Furthermore, it is also possible that the first claw toothing is made of hardened steel and / or nitrided steel, which can also be used for the manufacture of the stop disc. Thus, the first claw toothing can achieve a particularly high robustness. Here, the pin shaft holder can be made of aluminum, in particular by aluminum die casting, so that the weight of the planetary gear device can be kept in a particularly low range.

[0026] In order to achieve a particularly compact design of the planetary gear device, in another configuration of the present application a radial bearing accommodation region is provided, which is designed as a single piece together with the first claw toothing. In other words, the radial bearing accommodation region and the first claw toothing are composed of a single part. Thus, the radial bearing accommodation region is composed of the stop disc. The radial bearing accommodation region is designed for accommodating a radial bearing for achieving a radial support of the planetary gear device on the housing. In other words, preferably said radial bearing is provided, by means of which the planet carrier is rotatably supported on the housing in a radial direction of the planetary gear device via the radial bearing accommodation region, in turn via the stop disc. Preferably, the radial bearing is designed as a rolling bearing.

[0027] Finally, it has proven to be particularly advantageous to provide an axial bearing accommodation region, which is designed as a single piece together with the first claw toothing. Thus, the axial bearing accommodation region and the claw toothing are composed of a single part, so that the axial bearing accommodation region is composed of the stop disc. The axial bearing accommodation region is designed for accommodating an axial bearing for achieving an axial support of the planet carrier on the housing. Preferably, an axial bearing is provided, by means of which the planet carrier is rotatably supported on the housing in an axial direction of the planetary gear device via the axial bearing accommodation region, in turn via the stop disc. Preferably, the axial bearing is designed as a rolling bearing. Thereby, a particularly large functional scope of the stop disc can be achieved in a particularly compact manner.

[0028] A second aspect of the present application relates to a motor vehicle, also referred to simply as a vehicle, and preferably designed as a car, in particular a passenger car, having a drive device and being drivable by means of the drive device. Here, the drive device has at least one planetary gear device according to the first aspect of the present application. The advantages and advantageous design options of the first aspect of the present application are to be regarded as advantages and advantageous design options of the second aspect of the present application and vice versa. BRIEF DESCRIPTION OF DRAWINGS

[0029] Further advantages, features and details of the present application will become apparent from the following description of preferred embodiments and with reference to the drawings. The above-mentioned features and combinations of features mentioned in the description and the features and combinations of features shown in the drawings, both individually and in all combinations, can be used in any desired combination and / or alternatively, without departing from the scope of the present application.

[0030] In the drawings:

[0031] Figure 1 A partial schematic longitudinal sectional view of a first embodiment of a planetary gear device is shown; and

[0032] Figure 2 A partial schematic longitudinal sectional view of a second embodiment of a planetary gear device is shown; and

[0033] Figure 3 A partial schematic perspective view of a planetary gear device is shown; and

[0034] Figure 4 A partial schematic front view of a planetary gear device is shown.

[0035] In the drawings, same or functionally same elements have same reference signs. DETAILED DESCRIPTION

[0036] Figure 1A first embodiment of a planetary gear device 10, in particular for a drive device of a motor vehicle, is shown in the form of a partially schematic longitudinal sectional view. The planetary gear device 10 has a first planetary gear set 14 and a second planetary gear set 16, which are each arranged at least partially within a housing 12. The planetary gear device 10 has a planet carrier 18, which is common to the planetary gear sets 14 and 16, forms a first shaft of the planetary gear device 10, and is supported in a rotatable manner with respect to the housing 12 about a main rotation axis 20. The first planetary gear set 14 has a first sun wheel 22, which forms, for example, a second shaft of the planetary gear device 10. Furthermore, the planetary gear set 14 has a first ring gear 24, which forms, for example, a third shaft of the planetary gear device 10. The planetary gear set 16 has a second sun wheel 26, which forms, for example, a fourth shaft of the planetary gear device 10. Furthermore, the planetary gear set 16 has, for example, a second ring gear 28, which forms, for example, a fifth shaft of the planetary gear device 10. The planet carrier 18 has a pin shaft holder 30, first planet pin shafts 32, and second planet pin shafts 34. Here, the first planetary gear set 14 has first planet gears 36, wherein one, in particular exactly one, of the planet gears 36 is rotatably supported on one, in particular exactly one, of the planet pin shafts 32. The planetary gear set 16 has second planet gears 38, wherein one, in particular exactly one, of the planet gears 38 is rotatably supported on one, in particular exactly one, of the planet pin shafts 34, such that the respective planet gear 38 is rotatably supported on the respective planet pin shaft 34 about a respective planet pin rotation axis 40 with respect to the respective planet pin shaft 34. Furthermore, it is also conceivable that third planet gears are rotatably supported on the planet carrier 18. The respective planet gear 36 meshes with the sun wheel 22, but not with the ring gear 24. Furthermore, for example one, in particular exactly one, of the planet gears 36 meshes with one, in particular exactly one, of the third planet gears, wherein the respective third planet gear meshes, for example, with the ring gear 24 and the sun wheel 26, but not with the sun wheel 22 and the ring gear 28. Furthermore, the respective third planet gear also meshes with one, in particular exactly one, of the planet gears 38, wherein the respective planet gear 38 meshes with the ring gear 28, but not with the sun wheel 26.

[0037] The planetary gear device 10 has a dog clutch 42 which has a first dog toothing 44 which is permanently torsionally connected with the planet carrier 18. The second axis of the planetary gear device 10 which is formed by the sun gear 22, the third axis of the planetary gear device 10 which is formed by the ring gear 24, the fourth axis of the planetary gear device 10 which is formed by the sun gear 26 and the fifth axis of the planetary gear device 10 which is formed by the ring gear 28 are also collectively referred to as planetary gear device axes. By means of the dog toothing 44 and thus by means of the dog clutch 42, the planet carrier 18 and thus the first axis of the planetary gear device 10 can be torsionally connected with the housing 12 or one of the planetary gear device axes. To this end, the dog clutch 42 has, for example, a second dog toothing which is not visible in the figures, which is permanently torsionally connected, for example, with the housing 12 or with the aforementioned one of the planetary gear device axes. The dog clutch 42 can be switched, for example, between a coupled state and a decoupled state. In the coupled state, the dog toothing of the dog clutch 42 is at least indirectly connected to one another in a form-fit manner, so that the planet carrier 18 is torsionally connected in a form-fit manner with the housing 12 or with the aforementioned one of the planetary gear device axes. In the decoupled state, the dog toothing is decoupled from one another, so that the planet carrier 18 and thus the first axis can be rotated relative to the housing 12 or relative to the aforementioned one of the planetary gear device axes about the main rotation axis 20.

[0038] Furthermore, the planetary gear device 10 also has an oil collecting element which is designed as an oil collecting ring 46 in the present case, wherein the oil collecting ring 46 is designed together with the first dog toothing 44 as a single piece. Figure 1 The oil flow in the oil line 84 is schematically illustrated by means of arrows. When the sun gear 26 is rotated relative to the housing 12 about the main rotation axis 20, for example, oil is ejected or centrifuged radially outwardly from the sun gear 26 along the planetary gear device 10. The radial direction of the planetary gear device 10, which is perpendicular to the axial direction of the planetary gear device 10, is illustrated by means of a double arrow 48. The axial direction of the planetary gear device 10, which coincides with the main rotation axis 20, is illustrated by means of a double arrow 50. The oil which is centrifuged radially outwardly from the sun gear 26 or the fourth axis along the planetary gear device 10 is collected by means of the oil collecting ring 46 and is guided, for example, into the respective planet pin axle 34, by means of which the oil is guided, for example, via at least one radial through-hole 78, to the respective bearing 52 which is designed, for example, as a roller bearing, by means of which the respective planet gear 38 is rotatably supported on the respective planet pin axle 34. As a result, the respective bearing 52 is supplied with oil and thus lubricated.

[0039] So as to be able to realize a particularly large functional implementation range in a particularly space-saving manner, the planetary gear device 10 has a flat stop disk 54, which is designed as a single piece together with the first claw toothing 44. This means that the oil collector ring 46, the stop disk 54 and the claw toothing 44 are formed by a single-piece, i.e. designed as a single piece, combined component, which is also referred to as a combination piece, consists of a single part and is thus designed as a single piece. In other words, the combination piece is a single-piece structure, i.e. made of a single part, thus integrally manufactured and thus designed as a single-piece structure, which constitutes both the oil collector ring 46 and the claw toothing 44 and the stop disk 54. The stop disk 54 has an axial end face S1, which faces in the axial direction of the planetary gear device 10 towards the planetary wheel pins 34. A further function of the combination piece is that the planetary wheel pins 34 can be fixed in the axial direction of the planetary gear device 10 on the pin carrier 30 by means of the stop disk 54, and thus by means of the combination piece. For this purpose, for example, the axial end face S1 abuts, in particular directly, on the respective planetary wheel pin 34 in the axial direction of the planetary gear device 10.

[0040] It can be seen from Figure 1 that the first claw toothing 44 points outwards in the radial direction of the planetary gear device 10. Furthermore, the pin carrier 30 has a crown toothing 56, which is formed on an axial end face S2 of the pin carrier 30. Here, the axial end face S2 of the pin carrier 30 at least partially faces in the axial direction of the planetary gear device 10 towards the stop disk 54 or the axial end face S1. In other words, the respective toothing of the crown toothing 56 projects in the axial direction of the planetary gear device 10 from at least one side of the pin carrier 30 which faces in the axial direction of the planetary gear device 10 towards the axial end face S1.

[0041] It can also be seen from Figure 1 that each planetary wheel pin 34 advantageously has an extension / protrusion 80. The protrusion 80 extends in the axial direction (double arrow 50) into a respective receptacle 82. Advantageously, the receptacle 82 for accommodating the protrusion 80 of the planetary wheel pin 34 is formed by the combination piece.

[0042] The receptacle 82 is connected to the stop disk 54 in a torsionally rigid manner.

[0043] The protrusion 80 and the associated receptacle 82 are each designed to prevent the respective planetary wheel pin 34 from rotating about its own axis of symmetry, so that the respective through-hole 78 is always arranged radially outside the respective planetary wheel pin with respect to the main axis of rotation 20.

[0044] The protrusion 80 is advantageously arranged axially overlapping the stop disk 54. Advantageously, the protrusion 80 extends from a respective cylindrical wall of the planetary wheel pin 34.

[0045] It is particularly advantageous that the oil collecting ring 46 is designed in such a way that the receptacle 82 forms part of the oil collecting ring.

[0046] In addition to the rotationally fixed planet pin 34, there is another very important detail for the oil duct 84. A sealing ring 86 is arranged between the stop disc 54 and the pin carrier 30 in such a way that the oil collected by the oil collecting ring 46 is forced to flow into the planet pin 34 and from there to the through hole 78.

[0047] The sealing ring 86 is designed for sealing the assembly, in particular the stop disc 54, with respect to the pin carrier 30. It is advantageous that the sealing ring 86 is arranged radially outside the oil collecting ring 46. It is particularly advantageous that the sealing ring 86 is arranged radially outside the planet pin 34 with respect to the main rotation axis 20.

[0048] In combination with Figure 3 It can be seen that the flat stop disc 54 and thus the assembly designated with 58 has first recesses 60, which are designed as through holes in the present case. The crown toothing 56, i.e. the teeth of the crown toothing 56 designated with 62, are embedded in the recesses 60 in the axial direction of the planetary gear 10, which in the present case results in the recesses 60 being penetrated by the crown toothing 56, i.e. by the teeth 62, in the axial direction of the planetary gear 10. In this way, the assembly component (assembly 58) and the pin carrier 30 jointly act in a form-fit manner, for example the pin carrier 30 and the assembly 58 are connected in a torque-proof manner, i.e. in a form-fit manner.

[0049] It can be seen from Figure 1 It can be seen from

[0050] In the first embodiment, the assembly 58 has a radial bearing accommodation region 69 which is designed as a single piece together with the first claw toothing 44. The radial bearing accommodation region 69 is rotatably supported on the housing 12 in the radial direction of the planetary gear 10, in particular via the fourth shaft, via a radial bearing 70 which is designed as a rolling bearing in the present case. Thus, the planet carrier 18 is rotatably supported on the fourth shaft and on the housing 12 via the fourth shaft, via the assembly 58, the radial bearing accommodation region 69 and the radial bearing 70. Furthermore, in the first embodiment, the assembly 58 has an axial bearing accommodation region 72 which is designed as a single piece together with the first claw toothing 44. The axial bearing accommodation region 72 is at least indirectly supported on the housing 12, in particular on the fourth shaft, via an axial bearing 74 which is designed as a rolling body / rolling bearing in the present case, so that, for example, the planet carrier 18 is rotatably supported on the fourth shaft and on the housing 12 via the fourth shaft, via the assembly 58, the axial bearing accommodation region 72 and the axial bearing 74.

[0051] Thus, the axial bearing accommodation region 72 is designed for accommodating the axial bearing 74. Advantageously, the axial bearing 74 is also designed for radially supporting the axial bearing accommodation region 72.

[0052] Figure 2 A second embodiment of the planetary gear 10 is shown in the form of a schematic longitudinal sectional view.

[0053] It can be seen from Figure 4 that the planet wheel rotation axis 40 intersects an arrangement circle 76, the centre of which is located, for example, on the main rotation axis 20. Here, the arrangement circle 76 is arranged radially overlapping the limit stop 54. Furthermore, it can be seen from Figure 4 that the flat limit stop 54 has a circular shape which is arranged coaxially to the main rotation axis 20.

[0054] List of reference signs

[0055] 10 planetary gear

[0056] 12 housing

[0057] 14 first planetary gear set

[0058] 16 second planetary gear set

[0059] 18 planet carrier

[0060] 20 main rotation axis

[0061] 22 first sun wheel

[0062] 24 first ring gear

[0063] 26 second sun gear

[0064] 28 second ring gear

[0065] 30 pin shaft support

[0066] 32 planetary gear pin shaft

[0067] 34 planetary gear pin shaft

[0068] 36 planetary gear

[0069] 38 planetary gear

[0070] 40 planetary gear rotation axis

[0071] 42 dog clutch

[0072] 44 first dog tooth

[0073] 46 oil collecting ring

[0074] 48 double arrow

[0075] 50 double arrow

[0076] 52 bearing

[0077] 54 check disc

[0078] 56 communication device

[0079] 58 assembly

[0080] 60 first groove

[0081] 62 tooth

[0082] 64 second groove

[0083] 66 retainer ring

[0084] 69 radial bearing accommodation area

[0085] 70 radial bearing

[0086] 72 axial bearing accommodation area

[0087] 74 axial bearing

[0088] 76 arrangement circle

[0089] 78 through hole

[0090] 80 protrusion

[0091] 82 accommodation portion

[0092] 84 oil passage

[0093] 86 sealing ring

[0094] S1 axial end face

[0095] S2 axial end face

[0096] S3 axial end face

Claims

1. A planetary gear assembly (10) comprising: a housing (12); a planet carrier (18) forming a first shaft of the planetary gear assembly (10) and rotatably supported about a main rotation axis (20), the planet carrier having a pin support (30) and planetary gear pins (34), on which planetary gears (38) are rotatably supported; a claw clutch (42) having a first claw tooth (44) permanently and torsionally connected to the planet carrier (18) and designed for torsionally connecting the planet carrier (18) to another shaft of the planetary gear assembly (10) or to the housing (12); and an oil collector ring (46) designed as a single piece together with the first claw tooth (44). Its features are, A flat limiting disc (54) is designed as a single piece together with the first claw-shaped toothed part (44), and the flat limiting disc is designed to axially fix the planetary gear pin (34).

2. The planetary gear device (10) according to claim 1, Its features are, The first claw-shaped tooth (44) is oriented radially outward relative to the main rotation axis (20).

3. The planetary gear device (10) according to claim 1 or 2, Its features are, The pin support (30) has a crown tooth (56), wherein the flat limiting disc (54) has a first groove (60) through which the crown tooth (56) passes in the axial direction relative to the main rotation axis (20).

4. The planetary gear device (10) according to claim 3, Its features are, The crown tooth (56) has a second groove (64) arranged in the radial direction and designed to accommodate the retaining ring (66) for axial fixation of the flat limiting disc (54) and the planetary gear pin (34).

5. The planetary gear assembly (10) according to any one of the preceding claims, Its features are, The flat limiting disk (54) has a circular shape that is coaxial with the main rotation axis (20), wherein the planetary gear rotation axis (40) of the planetary gear (38) intersects with the arrangement circle (76), and the arrangement circle is perpendicular to the planetary gear rotation axis (40) and radially overlaps with the limiting disk (54).

6. The planetary gear assembly (10) according to any one of the preceding claims, Its features are, A radial bearing receiving area (69) is designed as a single piece together with the first claw tooth (44) and is designed to receive a radial bearing (70) for radial support of the planetary carrier (18).

7. The planetary gear assembly (10) according to any one of the preceding claims, Its features are, An axial bearing receiving area (72) is designed as a single piece together with the first claw tooth (44) and is designed to receive the axial bearing (74) to provide axial support for the planetary carrier (18).

8. The planetary gear device (10) according to any one of the preceding claims, Its features are, Each of the planetary gear pins (34) has an axial protrusion (80), wherein each protrusion (80) is embedded in a receiving portion (82), which is torsionally connected to the limiting disc (54).

9. The planetary gear assembly (10) according to any one of the preceding claims, Its features are, A sealing ring (86) is designed to seal the limiting disc (54) relative to the pin support (30).

10. A motor vehicle having a drive unit capable of driving the motor vehicle by means of the drive unit, wherein the drive unit has at least one planetary gear device (10) according to any one of the preceding claims.

Images