Lubricant supply device for feeding lubricant to at least one planetary gear set of a gearbox

Abstract

The invention relates to a lubricant supply device (20) for feeding lubricant to at least one planetary gear set of a gearbox, comprising an annular housing (27) which forms a lubricant collecting chamber in the form of an annular channel. At least one inlet, provided for supplying lubricant to the annular channel, and a plurality of outlet lines (28, 30) open into the annular channel, each outline line having, at an end that faces away from the annular channel, an outlet opening (34, 38) from which lubricant supplied from the annular channel to that outlet line (28, 30) can be discharged. The at least one inlet is in each case in the form of an inlet line, the annular channel being completely sealed off from the surroundings by the annular housing (27), apart from the openings of each inlet line and the outlet lines (28, 30).

Description

[0001] Lubricant guide device for supplying lubricant to at least one planetary gear set of a gearbox

[0002] The invention relates to a lubricant supply device for delivering lubricant to at least one planetary gear set of a transmission, comprising an annular housing which forms a lubricant collection chamber as an annular channel, wherein at least one inlet, provided for supplying lubricant to the annular channel, and several outlet lines open into the annular channel, each of which has an outlet opening at one end facing away from the annular channel, at which lubricant supplied to the respective outlet line from the annular channel can be discharged. The invention further relates to a transmission with the aforementioned lubricant supply device.

[0003] In gearboxes, bearings and gear meshes are typically lubricated to ensure proper lubrication and cooling in their respective areas. In a gearbox with one or more planetary gear sets, it is common practice to supply lubricant to the bearings of the planet gears within each planetary gear set. Often, a lubricant guide is provided on a planet carrier that allows the planet gears to rotate. This guide directs lubricant to the planet gear pins, from where it is then supplied to the respective bearings.

[0004] German patent DE 102016 206 745 A1 discloses a lubricant guide device for a gearbox, wherein the lubricant guide device has an annular housing that defines an annular channel open radially inwards. The radially inner opening serves as an inlet through which lubricant flowing radially outwards into the area of ​​the lubricant guide device can enter the annular channel and collect there. Several drain lines open into the annular channel, each of which can be supplied with lubricant from the annular channel and from which the supplied lubricant can flow out through outlet openings. The lubricant is supplied via the drain lines to planetary gear sets of the gearbox located axially on both sides of the lubricant guide device.The drain lines, oriented in an axial direction, are designed as pipe sections projecting axially from the housing. In the installed state of the lubricant supply device, these pipe sections are inserted into bores in the planet gear bolts. The lubricant supplied to the corresponding planet gear bolt via the respective pipe section is then guided through bores to the respective bearing of the planet gear, which is rotatably mounted on the planet gear bolt, in order to lubricate and cool the respective bearing.

[0005] Starting from the prior art described above, the object of the present invention is to create a lubricant guide device with which a reliable supply of lubricant to at least one associated planetary gear set of a transmission can always be realized, independent of movement.

[0006] This problem is solved starting from the preamble of claim 1 in conjunction with its characterizing features. The subsequent dependent claims each describe advantageous embodiments of the invention. A transmission in which a lubricant guide device according to the invention is provided is further the subject of claims 11 to 15.

[0007] According to the invention, a lubricant conveying device comprises an annular housing which forms a lubricant collection chamber as an annular channel. At least one inlet, provided for supplying lubricant to the annular channel, and several outlet lines open into the annular channel, each of which has an outlet opening at one end facing away from the annular channel, through which lubricant supplied to the respective outlet line from the annular channel can be discharged.

[0008] The lubricant guide device according to the invention is designed to supply lubricant to at least one planetary gear set of a transmission. This is achieved by supplying lubricant, which is a liquid and in particular oil, to the lubricant collection chamber via the at least one inlet of the lubricant guide device when it is installed. From this lubricant collection chamber, the lubricant is then supplied to the components of the at least one planetary gear set via the drain lines, by allowing the lubricant to flow from the annular channel through the respective drain line to the corresponding component of the at least one planetary gear set.

[0009] In the lubricant conveying device, the lubricant collection chamber is designed as an annular channel, meaning the channel forming the lubricant collection chamber is ring-shaped. Preferably, the annular channel is designed as a closed ring, so that the annular channel has no end in the circumferential direction. However, within the scope of the invention, the annular channel could also be a ring segment, so that the annular channel then has ends in the circumferential direction. The annular shape of the annular channel is defined by an annular housing of the lubricant conveying device, the housing correspondingly delimiting the annular channel axially and radially, and optionally also circumferentially. For the corresponding design of the annular channel, the housing is preferably designed as a closed ring, but can also be a ring segment. Most preferably, the housing is designed as a circular ring or as a circular ring segment.

[0010] To supply the annular channel with lubricant, at least one inlet opens into it, allowing lubricant to be fed into the channel via this inlet. In addition to the inlet, several outlet lines also open into the annular channel, each with an outlet opening at one end opposite its inlet. This allows lubricant to be drawn from the annular channel through the respective outlet line to its outlet opening and discharged there. Due to the annular shape of the channel, this discharge can occur circumferentially at points where the components of the at least one planetary gear set are located.This allows, in particular, the supply of lubricant to areas spaced apart from each other in the circumferential direction, in which the respective planet gears of the at least one planet gear set are located. Thus, in this area, the bearing points of the planet gears and / or the tooth meshing of the planet gears with other components of the at least one planet gear can be preferably lubricated and cooled by supplying the lubricant.

[0011] The invention now comprises the technical teaching that the at least one inlet is designed as an inlet pipe. Furthermore, apart from the outlets of the individual inlet pipes and the outlet pipes, the annular channel is completely separated from its surroundings by the annular housing. In other words, the at least one inlet is in the form of an inlet pipe, and the annular channel is furthermore encapsulated from its surroundings by the annular housing, with this encapsulation being interrupted only at the outlets of the individual inlet pipes and the outlet pipes.

[0012] Such a design of a lubricant guide advantageously enables a reliable supply of lubricant to at least one planetary gear set of a transmission, regardless of any movement of the lubricant guide. This is because, by designing the at least one inlet as a separate inlet line and completely isolating the annular channel from the environment (except for the outlets), it is ensured that, both when the lubricant guide is rotating in conjunction with a component of the at least one planetary gear set and when the lubricant guide is stationary, the annular channel is always supplied from the separate inlet line, and the outlet lines are also supplied from the annular channel.Since the annular housing completely separates the annular channel from its surroundings, except for the openings, lubricant can only enter or exit the annular channel at these openings. Particularly when the lubricant conveying device is stationary, the lubricant can thus enter the annular channel via the inlet lines and subsequently flow into the outlet lines. In contrast, the inlet to the annular channel in DE 10 2016 206 745 A1 is designed as a radially internal, circumferential opening to collect lubricant flowing radially from the inside into the annular channel and subsequently discharge it into the outlet lines.However, the lubricant guide device of DE 10 2016 206 745 A1 is only suitable for a joint rotation with one component of a planetary gear set, in this case a planet carrier, since otherwise the lubricant would flow back radially inwards when the lubricant guide device is at rest.

[0013] Preferably, the lubricant guide device according to the invention is designed for a stationary arrangement, i.e., the lubricant guide device according to the invention does not perform any rotational movements when installed in the gearbox. In this case, the lubricant guide device also supplies stationary areas of the at least one planetary gear set in the gearbox. In principle, however, the lubricant guide device according to the invention could also perform a common rotation with a component of the at least one planetary gear set when installed and during operation of the gearbox.

[0014] For the purposes of the invention, a "conduit," such as the respective inlet or outlet lines, is understood to be a limited volume running between connection points, through which the lubricant supplied at one connection point is conveyed to the other connection point. Preferably, the respective conduit has a circular cross-section in the direction of lubricant flow. Furthermore, within the scope of the invention, the respective conduit could be designed entirely as a pipe or entirely as a channel defined by a surrounding component, in particular a housing part. A partial design of the respective conduit as both a pipe and a channel is also conceivable.

[0015] "Axial" refers to an orientation parallel to a central axis of the annular housing or the annular channel, while "radial" means an orientation in the diameter direction with a center point lying on the central axis. Preferably, each inlet line runs at least predominantly axially, so that axial supply of lubricant to the annular channel is also achieved via the respective inlet line. Most preferably, each inlet line serves as a pressurized supply of lubricant, i.e., each inlet line is supplied with pressurized lubricant, thereby also providing a pressurized supply to the annular channel. Alternatively, but preferably additionally, the outlet lines run at least predominantly radially to provide radial discharge of the lubricant from the annular channel.

[0016] In the lubricant conveying device according to the invention, the housing is preferably made of a plastic material, wherein the housing is particularly designed in multiple parts to define the annular channel. Furthermore, the inlet line and the outlet lines are also preferably each defined by plastic components of the lubricant conveying device.

[0017] According to one embodiment of the invention, each inlet line on the housing part is designed as an axially projecting inlet pipe. This allows for a reliable axial supply of the annular channel. In particular, each inlet pipe forms a connection fitting at an end opposite its opening in the annular channel, with which the inlet pipe can be connected to, and in particular inserted into, a lubricant supply.

[0018] According to one embodiment of the invention, the drain lines are designed as drain pipes, each comprising a first pipe section extending radially from its respective outlet in the annular channel. Furthermore, this first pipe section transitions, away from the respective outlet, into a second pipe section extending axially, with an outlet opening at its respective end. This allows for a connection from the annular channel to a region located radially inside or radially outside the annular channel, as well as axially adjacent to it. The design of the drain lines as drain pipes also enables their simple implementation.

[0019] In a further development of the aforementioned embodiment, several of the drain pipes extend radially outwards from the housing with their first pipe sections, spaced apart from each other in the circumferential direction of the annular channel. This has the advantage that radially spaced outer areas of the annular channel can also be supplied. In particular, further housing sections adjoin the annular housing radially outwards, each extending in a disc-like fashion in the circumferential direction between adjacent drain pipes extending radially outwards. This increases the stiffness of the lubricant guide device according to the invention in the area of ​​the radially outward-extending drain pipes.

[0020] Within the scope of the invention, a recess can be provided in at least one of the housing sections, whereby, in the installed state of the lubricant guide device, a component of the gearbox, for example a parking lock receptacle, can easily be placed in this area.

[0021] According to the invention, the housing sections can extend radially up to the respective height of the second pipe sections of the radially outward-extending drain pipes, whereby the respective housing section ends radially essentially at the level of the outlet openings of the associated drain pipes. Alternatively, the respective housing section can also be designed with a radial extension beyond the radially outward-extending drain pipes. Within the scope of the invention, all housing sections can end radially at the level of the associated drain pipes, all housing sections can extend radially beyond the drain pipes, or some of the housing sections can end radially at the level of the associated drain pipes and some of the housing sections can extend radially beyond the drain pipes.In the second and third cases mentioned, a greater radial extension of the lubricant guide device according to the invention can be achieved, allowing the lubricant guide device to also be used in the respective gearbox for axial shielding of the area of ​​the at least one planetary gear set. This prevents large quantities of lubricant from accumulating in the area of ​​the at least one planetary gear set and causing increased churning losses. In this case, at least the housing sections of the lubricant guide device located at the bottom in the installed position must extend radially far enough towards a radially surrounding component of the gearbox to achieve axial shielding.

[0022] In a further development of the invention, at least one of the drain pipes extends radially inwards from the housing with its first pipe section. This has the advantage that, in its installed state, components of the at least one planetary gear set located radially inside the annular channel can be supplied via the lubricant guide device. Particularly preferably, the at least one radially inward-extending drain pipe projects into a through-opening radially bounded by the housing.

[0023] In one embodiment of the invention, each inlet pipe extends from the housing in a first axial direction, while the outlet pipes, with their outlet openings, each point in an opposite, second axial direction. Advantageously, the lubricant guide device is then designed to be supplied with lubricant from the first axial side and to provide a lubricant supply on the second axial side.

[0024] The invention further relates to a transmission, in particular a motor vehicle transmission. This transmission comprises at least one planetary gear set and a lubricant guide device according to one or more of the variants described above. The lubricant guide device is located axially adjacent to the at least one planetary gear set and is connected to a lubricant supply via its inlet lines. The lubricant guide device's outlet openings point towards the areas of the at least one planetary gear set to be lubricated. In a further development of the aforementioned transmission, a planet carrier is permanently fixed in the at least one planetary gear set and rotatably supports several planet gears, each of which meshes with a sun gear and a ring gear of the at least one planetary gear set.In this configuration, the lubricant supply device, together with the planet carrier, remains stationary and is connected via at least part of its drain lines to corresponding ports that supply lines to the planet gear bearings. This ensures a reliable supply of lubricant to the bearings and, consequently, to the meshing of the planet gears.

[0025] In particular, in addition to a first planetary gear set comprising the fixed planet carrier, sun gear, and ring gear, a second planetary gear set is provided. This second set includes a further planet carrier, sun gear, and ring gear, and is arranged axially overlapping and radially internal to the first planetary gear set. The ring gear of the second planetary gear set is rotationally fixed to the sun gear of the first planetary gear set. Preferably, at least one of the drain lines of the lubricant supply device has its outlet opening radially at the level of the second planetary gear set and points axially towards it. This allows for the supply of lubricant not only to the bearings of the planet gears of the first planetary gear set but also to components of the second planetary gear set.

[0026] According to one embodiment, the lubricant guide device, at least with a section located at the bottom in the installed position, separates an area containing the at least one planetary gear set from an axially adjacent area. In this case, the lubricant guide device according to the invention thus functions not only as a lubricant supply to the at least one planetary gear set but also as a shielding device, by separating the axial area of ​​the at least one planetary gear set from the axially adjacent area. Preferably, this compartmentation prevents an increased accumulation of lubricant in the area of ​​the at least one planetary gear set.This is achieved in particular by the fact that, at least in the installed position, housing sections of the lubricant guide device located at the bottom extend radially to near a component of the gearbox arranged radially surrounding the lubricant guide device.

[0027] Advantageous embodiments of the invention, which are explained below, are illustrated in the drawings. They show:

[0028] Fig. 1 shows a sectional view of an area of ​​a gearbox with a

[0029] Lubricant supply device according to a first embodiment of the invention;

[0030] Figs. 2 and 3 show different perspective views of the lubricant guide device from Fig. 1; and

[0031] Fig. 4 shows a sectional view of an area of ​​a gearbox with a

[0032] Lubricant guidance device according to a second embodiment of the invention.

[0033] Figure 1 shows a sectional view of a section of a transmission 1, which is in particular a motor vehicle transmission. The transmission 1 is shown in the area of ​​two planetary gear sets 2 and 3, which are arranged axially overlapping and radially nested. Each of the two planetary gear sets 2 and 3 has a sun gear 4 or 5, a planet carrier 6 or 7, and a ring gear 8 or 9.

[0034] In planetary gear set 2, several planet gears 10 are rotatably mounted in the planet carrier 6, with each individual planet gear 10 simultaneously meshing with both the sun gear 4 and the ring gear 8 of planetary gear set 2. For this rotatable mounting, the planet carrier 6 carries a planet gear pin 11 for each planet gear 10, on which the respective planet gear 10 is rotatably mounted via an intermediate bearing 12. Similarly, the planet carrier 7 of planetary gear set 3 also carries several planet gears 13, which in planetary gear set 3 are simultaneously meshing with both the sun gear 5 and the ring gear 9 of planetary gear set 3. Each individual planet gear 13 is rotatably mounted in the planet carrier 7 via an intermediate bearing 14 on its respective planet gear pin 15.

[0035] In this arrangement, the planetary gear set 3 is axially overlapping and radially internal to the planetary gear set 2, wherein the sun gear 5 of the planetary gear set 3 is integrally formed with a drive shaft 16 of the transmission 1, the drive shaft 16 being equipped at one end with teeth forming the sun gear 5. Furthermore, the planet carrier 7 of the planetary gear set 3 is rotationally fixed to a first output shaft 17, which runs coaxially to the drive shaft 16. The first output shaft 17 is designed as a solid shaft, around which the drive shaft 16 is arranged as a hollow shaft.

[0036] Also coaxial to the input shaft 16 and thus also to the first output shaft 17, the gearbox 1 also provides a second output shaft 18, which is non-rotatably connected to the ring gear 8 of the planetary gear set 2. Furthermore, the ring gear 9 of the planetary gear set 3 and the sun gear 4 of the planetary gear set 2 are non-rotatably connected to each other, with the ring gear 9 and the sun gear 4 being formed in one piece, in that the ring gear 9, in addition to its internal teeth, is also equipped on an outer circumference with external teeth forming the sun gear 4. Finally, the planet carrier 6 is permanently non-rotatably connected to a gearbox housing 19 and thus permanently prevented from rotating.

[0037] In the transmission 1, the two planetary gear sets 2 and 3 function as a differential gear set by distributing the torque applied to the input shaft 16 between the two output shafts 17 and 18, thereby allowing for speed differences between the output shafts 17 and 18. In the transmission 1, the two planetary gear sets 2 and 3 are supplied with lubricant for lubrication and cooling. In this case, the lubricant is supplied by means of a lubricant guide device 20, which is designed according to a first embodiment of the invention and is shown individually in perspective in Figures 2 and 3. As shown in the figures...As can be seen in Figures 2 and 3, the lubricant guide device 20 essentially has a disc-shaped form and is connected by a supply line 21 to a lubricant supply 22, which is designed as a supply bore in the gearbox housing 19. The supply line 21 is designed, as can be seen particularly in Figure 2, as an axially projecting supply pipe 23, which forms a connection nozzle 24 at one end. The supply pipe 23 is inserted into a connection 25 on the gearbox housing 19 via this connection nozzle 24, thereby connecting the supply pipe 23 to the lubricant supply 22 and allowing it to be supplied with pressurized lubricant from the lubricant supply 22.

[0038] At an end opposite the connection nozzle 24, the inlet pipe 23 opens into an annular channel 26, which is formed by an annular housing 27 of the lubricant guide device 20. The annular housing 27 is shown in Fig. 3 and is designed as a closed ring, so the annular channel 26 is also designed as a closed channel. Lubricant, which has been supplied to the inlet pipe 23 from the lubricant supply 22, flows through the opening of the inlet pipe 23 in the annular channel 26 and then into the annular channel 26. From the annular channel 26, several drain lines 28, designed as radially outward-extending drain pipes 29 extending from the housing 27, and several drain lines 30, each designed as radially inward-extending drain pipes 31 extending from the housing 27, are supplied. Although not lying in a sectional plane, the following are shown in Fig.1 For the sake of better comprehensibility, one of the drain pipes 29 is shown with one of the drain pipes 31.

[0039] In each of the drain pipes 29, a first pipe section 32 opens into the annular channel 26 and extends radially outwards from this opening. This first pipe section 32 then transitions into a second pipe section 33, which runs axially in the opposite direction to the inlet pipe 23 and has an outlet opening 34 at its end. The lubricant supplied to the respective drain pipe 29 from the annular channel 26 can be discharged from this outlet opening 34. The respective drain pipe 29, with its second pipe section 33, is inserted into a corresponding connection 35 on the planet carrier 6 to supply the lubricant discharged from the drain pipe 29 to the planet gear pin 11 located there.The lubricant then flows via the planet gear pin 11 to the bearing 12 and subsequently to the gear teeth of the respective planet gear 10, providing lubrication and cooling. During this supply, the lubricant guide device 20, along with the planet carrier 6 and the gearbox housing 19, remains stationary.

[0040] The drain pipes 31 extending radially inwards from the housing 27 each have a first pipe section 36 and a second pipe section 37. The first pipe section 36 opens into the annular channel 26 and extends radially inwards from there, where it transitions into the second pipe section 37. The second pipe section 37 also extends axially in the opposite direction to the inlet pipe 23 and forms an outlet opening 38 at each end, through which lubricant can exit the respective drain pipe 31. The drain pipes 31 are located radially at the level of the planet gear pins 15 of the planet gear set 3, with the lubricant flowing from the drain pipes 31 then traveling radially inwards towards the drive shaft 16 and the sun gear 5, and being carried radially outwards towards the planet gear pins 15 as they rotate.

[0041] The annular channel 26 of the lubricant guide device 20 is completely separated by the housing 27, except for the openings of the inlet pipe 23 and the outlet pipes 29 and 31. This means that the lubricant supplied via the inlet pipe 23 can only flow out via the outlet pipes 29 and 31. This ensures a reliable supply to both planetary gear sets 2 and 3 at all times when the lubricant guide device 20 is stationary together with the planet carrier 6 and the gearbox housing 19.

[0042] While the drain pipes 31 project radially inwards into a through-opening 39 of the lubricant guide 20, which is defined by the housing 27, disc-shaped housing sections 40 extend between circumferentially adjacent drain pipes 29, connecting the respective adjacent drain pipes 29. Each housing section 40 extends radially to the level of the outlet openings 34 of the drain pipes 29, thereby increasing the rigidity of the lubricant supply lubricant guide 20 in the area of ​​the drain pipes 29. A recess 41 is also provided in one of the housing sections 40 to allow a component of the gearbox 1 to pass radially outside the lubricant guide 20 in this area.

[0043] Finally, Fig. 4 shows a sectional view of a gear unit 42, which is essentially the same as the gear unit 1 from Fig. 1. In contrast to the gear unit 1...

[0044] In Figure 1, a lubricant guide device 43 is provided in the gearbox 42 according to a second embodiment of the invention. This lubricant guide device 43 largely corresponds to the lubricant guide device 20 from Figures 1 to 3, with the lubricant guide device 43 differing in that at least the housing sections 44 of the lubricant guide device 43, which are located at the bottom in the installed position, are extended radially beyond the drain pipes 29. These housing sections 44 are brought radially close to the gearbox housing 19, thereby extending the axial area of ​​the planetary gear sets.

[0045] 2 and 3 are separated from an axially adjacent area. This prevents excessive accumulation of lubricant in the axial area of ​​the planetary gear sets 2 and 3 by means of the lubricant guide 43, which shields this axial area. Otherwise, the lubricant guide 43 corresponds to the lubricant guide 20 from Figures 1 to 3, so reference is made to the description therein. Using the embodiments according to the invention, a lubricant guide can be implemented for a reliable supply of lubricant to the planetary gear sets.

[0046] Reference mark

[0047] transmission

[0048] Planetary gear set

[0049] Planetary gear set

[0050] sun wheel

[0051] sun wheel

[0052] Planetary carrier

[0053] Planetary carrier

[0054] ring gear

[0055] ring gear

[0056] planetary gears

[0057] Planetary gear bolt

[0058] storage

[0059] planetary gears

[0060] storage

[0061] Planetary gear bolt

[0062] drive shaft

[0063] Output shaft

[0064] Output shaft

[0065] gearbox housing

[0066] Lubricant guide device

[0067] Inlet pipe

[0068] Lubricant supply

[0069] Inlet pipe

[0070] Connection piece

[0071] Connection

[0072] Ring canal

[0073] Housing

[0074] Drainage pipes

[0075] Drain pipes

[0076] Drainage pipes

[0077] Drain pipes, pipe section

[0078] Pipe section

[0079] Exit opening

[0080] Connection

[0081] Pipe section

[0082] Pipe section

[0083] Exit opening

[0084] Passage opening

[0085] Housing sections

[0086] recess

[0087] transmission

[0088] Lubricant guide device

[0089] Housing sections

Claims

Patent claims 1. Lubricant guide device (20; 43) for supplying lubricant to at least one planetary gear set (2, 3) of a transmission (1; 42), comprising an annular housing (27) which forms a lubricant collection chamber as an annular channel (26), wherein at least one inlet, which is provided for supplying lubricant to the annular channel (26), and several outlet lines (28, 30) open into the annular channel (26), each of which has an outlet opening (34, 38) at one end facing away from the annular channel (26), at which lubricant supplied from the annular channel (26) to the respective outlet line (28, 30) can be discharged, characterized in that the at least one inlet is designed as an inlet line (21), and that the annular channel (26) apart from the openings of the inlet line (21) and the outlet lines (28, 30) 30) is completely separated from its surroundings by the ring-shaped housing (27).

2. Lubricant guide device (20; 43) according to claim 1 , characterized in that each of the inlet lines (21 ) on the housing (27) is designed as each axially projecting inlet pipe (23).

3. Lubricant conveying device (20; 43) according to claim 1 or 2, characterized in that the drain lines (28, 30) are designed as drain pipes (29, 31), each of which has a first pipe section (32, 36) with which the respective drain pipe (29, 31) extends radially from the respective opening in the annular channel (26), wherein the first pipe section (32, 36) of each transitions away from the respective opening into a second pipe section (33, 37) of each, which extends axially and at the respective end of which an outlet opening (34, 38) is formed.

4. Lubricant guidance device (20; 43) according to claim 3, characterized in that several (29) of the drain pipes (29, 31 ) with their first pipe sections (32) extend radially outwards from the housing (27) and in the circumferential direction of the annular channel (26) spaced apart from each other.

5. Lubricant guide device (20; 43) according to claim 4, characterized in that further housing sections (40; 44) are connected radially outside the annular housing (27), each extending in a disc-like manner in the circumferential direction between adjacent, radially outwardly extending drain pipes (29).

6. Lubricant guide device (20; 43) according to claim 5, characterized in that a recess (41 ) is provided in at least one of the housing sections (40; 44).

7. Lubricant guide device (20; 43) according to claim 5 or 6, characterized in that the housing sections (40; 44) extend radially to a respective height of the second pipe sections (33) of the radially outward extending drain pipes (29) or radially beyond the radially outward extending drain pipes (29).

8. Lubricant guidance device (20; 43) according to one of claims 3 to 7, characterized in that at least one (31 ) of the drain pipes (29, 31 ) extends radially inwards from the housing (27) with its first pipe section (36).

9. Lubricant guide device (20; 43) according to claim 8, characterized in that the at least one radially inwardly extending drain tube (31) projects into a through-opening (39) radially defined by the housing (27).

10. Lubricant guidance device (20; 43) according to claim 2 and one of claims 3 to 9, characterized in that each inlet pipe (23) extends from the housing (27) in a first axial direction, whereas the outlet pipes (29, 31) with their outlet openings (34, 38) each point in a second axial direction opposite to this.

11. Transmission (1; 42), in particular motor vehicle transmission, comprising at least one planetary gear set (2, 3) and a lubricant guide device (20; 43) according to a or several of claims 1 to 10, wherein the lubricant guide device (20; 43) is located axially next to the at least one planetary gear set (2, 3) and is connected to a lubricant supply (22) via its inlet line (21) and has outlet openings (34, 38) of its outlet lines (28, 30) pointing into areas of the at least one planetary gear set (2, 3) to be supplied.

12. Gearbox (1 ; 42) according to claim 11 , characterized in that in the at least one planet gear set (2, 3) a planet carrier (6) is permanently fixed and rotatably guides several planet gears (10) which are in tooth mesh with a sun gear (4) and a ring gear (8) of the at least one planet gear set (2, 3), wherein the lubricant guide device (20; 43) is stationary together with the planet carrier (6) and is inserted with at least a part of the drain lines (28, 30) into associated connections (35) which supply lines are associated with bearings (12) of the planet gears (10).

13. Gearbox (1 ; 42) according to claim 12, characterized in that, in addition to a first planet gear set (2) comprising the fixed planet carrier (6), the sun gear (4) and the ring gear (8), a second planet gear set (3) is provided, to which a further planet carrier (7), a further sun gear (5) and a further ring gear (9) are assigned and which is arranged axially overlapping with and radially inside the first planet gear set (2), wherein the further ring gear (9) of the second planet gear set (3) is rotationally fixed to the sun gear (4) of the first planet gear set (2).

14. Gearbox (1 ; 42) according to claim 13, characterized in that at least one (30) of the drain lines (28, 30) of the lubricant guide device (20; 43) with its outlet opening (38) lies radially at the level of the second planet gear set (3) and points axially in the direction of the second planet gear set (3).

15. Gearbox (42) according to one of claims 11 to 14, characterized in that the lubricant guide device (43) separates, at least with a section located at the bottom in the installation position, an area in which the at least one planetary gear set is located (2, 3) from an axially adjacent area.

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