Oil guide component for an oil guide arrangement

The oil guide arrangement addresses the weakness of output shafts in existing oil guide systems by using an oil guide member with a main oil channel and chambers, ensuring efficient lubrication and cooling without compromising the structural integrity of the output shaft.

DE102023210774B4Active Publication Date: 2025-05-22ZF FRIEDRICHSHAFEN AG
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Patent Information

Application Number
DE102023210774
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-10-31
Publication Date
2025-05-22
Estimated Expiration
2043-10-31

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Abstract

An oil guide component (80) is provided for an oil guide arrangement. The oil guide arrangement comprises a stationary component (60) with a main oil channel (90), a first output shaft (5), and a second output shaft (6). The oil guide component (80) has a first chamber (81) and a second chamber (82). An outer side of the second output shaft (6) is in fluid communication with an inner space of the second output shaft (6) via a shaft passage (91). The oil guide component (80) is designed such that it can be connected to the stationary component (60) in a rotationally fixed manner. The first chamber (81) is open in the radial direction towards an outer side and is designed such that it can be brought into fluid communication with the main oil channel (90). The second chamber (82) is open in the radial direction towards an inner side and is designed such that it can be brought into fluid communication with the shaft passage (91).The first chamber (81) is arranged radially outside the second chamber (82) and overlaps the second chamber (82) axially. The first chamber (81) is in fluid communication with the second chamber (82) via a connecting passage (83).
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Description

Technical field

[0001] The present invention relates to an oil guide component for an oil guide assembly, an oil guide assembly for a transmission, a transmission for a vehicle, and a vehicle. State of the art

[0002] Oil guide arrangements that supply oil to various components of a transmission for lubrication and cooling are known. The transmission may comprise an output shaft and a gear set. A spur gear of the gear set may engage with a toothing that is non-rotatably connected to the output shaft. In one known oil guide arrangement, the gear set can be lubricated via transverse bores in the output shaft. This weakens the output shaft.

[0003] To avoid cross-bores in the output shaft, DE 10 2022 213 923 A1 proposes an oil guide arrangement with a cover element for supplying lubricant into a space between a first output shaft and a second output shaft. Description of the invention

[0004] It is an object of the present invention to provide an improved oil guide arrangement.

[0005] The object is achieved by an oil guide component for an oil guide arrangement having the features of claim 1. Advantageous further developments are the subject of the dependent claims.

[0006] An oil guide component for an oil guide assembly is provided. The oil guide assembly comprises a stationary component with a main oil channel, a first output shaft, and a second output shaft. The stationary component may be formed by a transmission housing. The oil guide component has a first chamber and a second chamber. One of the first chamber and the second chamber may have a rectangular cross-section. One of the first chamber and the second chamber may be annular.

[0007] An outer side of the second output shaft is in fluid communication with an inner space of the second output shaft via a shaft passage. The shaft passage may be formed in the second output shaft. The shaft passage may extend in the radial direction of the second output shaft. The shaft passage may be configured as a bore. Multiple shaft passages may be provided. The shaft passages may be evenly distributed in the circumferential direction.

[0008] The oil guide component is designed such that it can be connected to the stationary component in a rotationally fixed manner. The oil guide component can be rotationally symmetrical, at least in sections. The oil guide component can be connected to the stationary component in a rotationally fixed manner by means of a screw connection. The screw connection can be provided in the axial direction. The oil guide component can have a flange for the screw connection. The oil guide component can be pressed into the stationary component. The oil guide component can have a non-rotationally symmetrical outer surface to secure it against rotation. The non-rotationally symmetrical outer surface can be elliptical.

[0009] The first chamber is open radially towards an outer side. The first chamber is designed such that it can be brought into fluid communication with the main oil channel. The second chamber is open radially towards an inner side. The second chamber is designed such that it can be brought into fluid communication with the shaft passage. The first chamber is arranged radially outside the second chamber and overlaps the second chamber in the axial direction. The first chamber can overlap the second chamber in some areas. The first chamber can be arranged axially inside the second chamber. The first chamber can project beyond the second chamber in the axial direction. The first chamber is in fluid communication with the second chamber by means of a connecting passage. The connecting passage can be designed as a bore. Several connecting passages can be arranged in the circumferential direction.The connecting passages can be evenly distributed in the circumferential direction.

[0010] If two elements are fluidly connected, a fluid, such as oil, can be conducted from one element to the other. The fluid connection can be designed to be leak-free, so that the oil is conducted essentially completely from one element to the other.

[0011] In one embodiment, two grooves may be formed on a circumferential surface of the oil guide component for receiving a seal. The grooves may be formed on an outer circumference. Further grooves may be provided. Three grooves may be provided. Several of the grooves may differ from one another in their cross-section. The seal may be formed by an O-ring. The first chamber may be arranged between the two grooves. The first chamber may be sealed to the outside via seals when the oil guide component is installed in the stationary component.

[0012] Sealing refers to limiting the leakage of, for example, a fluid from one side of the sealing element in the axial direction to the other side of the sealing element. Preferably, the fluid can be oil. A certain degree of leakage may be permitted, for example, to lubricate a contact surface between the sealing element and a component moving relative to it using the fluid.

[0013] Two cylindrical annular surfaces are configured on a circumferential surface of the oil guide component for receiving a sealing element. The cylindrical annular surfaces can be configured on an inner circumference. The sealing element can be formed by a rectangular ring. The rectangular ring can have a fastening ring on an inner circumference. The fastening ring can be connected in a rotationally fixed manner to one of the cylindrical annular surfaces of the oil guide component. The second chamber can be arranged between the two annular surfaces. The second chamber can be sealed to an outside via sealing elements when the oil guide component is installed in the stationary component. In particular, a slight leakage of oil can be provided via the sealing elements.

[0014] A cylindrical receiving surface is formed on a circumferential surface of the oil guide component for receiving a radial shaft seal between one of the ring surfaces and an outer side of the oil guide component. The cylindrical receiving surface may be formed on an inner circumference. The cylindrical receiving surface may be grooved in the circumferential direction.

[0015] A drain hole is provided in the axial direction between the cylindrical receiving surface and one of the cylindrical ring surfaces. This prevents oil overpressure in a space between the radial shaft seal and the rectangular ring when the oil guide component is installed in the stationary component.

[0016] In one embodiment, a first end region at which the first chamber is arranged can have an outer circumference with a diameter that is smaller than an outer circumference of an axially opposite second end region. The second end region can be provided on an outer side of the stationary component when the oil guide component is installed in the stationary component. The first end region can serve as an insertion aid for the oil guide component into the stationary component. The first end region can comprise the two grooves with the first chamber in between. A further groove for a seal can be provided at the second end region. The cylindrical receiving surface for the radial shaft seal can be arranged axially within the second end region. The first end region can be connected to the second end region via a stepped section.

[0017] In one aspect, an oil guide assembly for a transmission is provided. The transmission has a first gear set with a first spur gear. The oil guide assembly has a first output shaft, a second output shaft, a first carrier, a first pin, a stationary component, and an oil guide component according to any one of the preceding embodiments. The first pin is configured to rotatably support the first spur gear. The first pin is connected to the first carrier. The first output shaft, the second output shaft, the oil guide component, and the first carrier can be arranged coaxially.

[0018] When two elements are connected to each other, they are linked by one or more connection points. However, relative movements, such as pivoting or translational movement, may be possible between these elements at and around the connection points.

[0019] The stationary component has a main oil channel. An outer side of the second output shaft is fluidly connected to an interior of the second output shaft via a shaft passage. The interior of the second output shaft can be configured as a cavity open in the axial direction toward an outer side of the second output shaft. The main oil channel is fluidly connected to the shaft passage via the oil guide component.

[0020] An oil channel for the first gear set is formed by a gap between the first output shaft and the second output shaft. The gap can be an annular gap. The annular gap can have stepped and cross-sectional changes. The oil channel for the first gear set is in fluid communication with the shaft passage. The oil channel for the first gear set can be in fluid communication with one end of the shaft passage in the oil flow direction.

[0021] An oil passage for the first pin is formed by a gap between the first carrier and the second output shaft. The gap may be an annular gap. The annular gap may have step and cross-sectional changes. The oil passage for the first pin is in fluid communication with the oil passage for the first gear set. The oil passage for the first pin may be configured to be in fluid communication with the first pin. An oil passage for the first pin may be in fluid communication with one end of the oil passage for the first gear set in the oil flow direction.

[0022] An oil channel for the first spur gear is formed by a gap between the first output shaft and the first carrier. The gap can be an annular gap. The annular gap can have step and cross-sectional changes. The oil channel for the first spur gear is in fluid communication with the oil channel for the first gear set. The oil channel for the first spur gear can be configured to be in fluid communication with the first spur gear. The oil channel for the first spur gear can be in fluid communication with one end of the oil channel for the first gear set in the oil flow direction. The oil channel for the first pin and the oil channel for the first spur gear can be in fluid communication with the oil channel for the first gear set at the same position.

[0023] If an oil channel is formed by a component, this component can form the oil channel in sections. The oil channel can continue outside the component. The component can interact with another component to form the oil channel.

[0024] An oil flow direction is the direction in which the oil moves within the oil guide assembly to reach the components being lubricated. Specifically, an oil passage's beginning is located upstream of an oil passage's end in the oil flow direction.

[0025] The second output shaft can be rotatably mounted on the stationary component by means of a first bearing. The radial shaft seal can be lubricated by leakage at one of the sealing elements. The first bearing of the second output shaft can be lubricated by leakage at another of the sealing elements.

[0026] In one embodiment, the oil guide assembly may include a bearing that rotatably supports the first output shaft within the second output shaft. The oil passage for the first gear set may be in fluid communication with the bearing of the first output shaft.

[0027] The first output shaft can extend at least partially within the second output shaft. The first output shaft and the second output shaft can form an annular gap. A bearing seat for the bearing of the first output shaft can be formed in the annular gap. The bearing of the first output shaft can be formed by a plain bearing. The bearing of the first output shaft can be formed by a needle bearing. The first output shaft can be hollow. A plug can be provided at one end in the first output shaft. The plug can be designed to prevent oil flow from the oil channel for the first gear set through the first output shaft. The first output shaft can be designed to allow oil flow through the first output shaft.

[0028] In one embodiment, the oil guide assembly may include a bearing that rotatably supports the first carrier in the second output shaft. The oil channel for the first pin may include a bearing seat for the bearing of the first carrier. In particular, the oil channel for the first pin may oil the bearing of the first carrier.

[0029] The first carrier can extend at least partially within the second output shaft. The first carrier and the second output shaft can form an annular gap. The bearing seat for the bearing of the first carrier can be formed in the annular gap. The bearing of the first carrier can be formed by a plain bearing. The bearing of the first carrier can be formed by a needle bearing. A recess, for example a groove, can be formed in the second output shaft along the bearing of the first carrier in the oil flow direction. A recess, for example a groove, can be formed in the first carrier in the oil flow direction along the bearing of the first carrier. The recess in the second output shaft and the recess in the first carrier can serve to adjust a flow rate through the oil channel for the first bolt.

[0030] In one embodiment, the oil guide assembly may include a first thrust bearing that rotatably supports the first carrier on the second output shaft. The oil passage for the first pin may include a bearing seat for the first thrust bearing of the first carrier.

[0031] The bearing seat for the first axial bearing of the first carrier can be formed in the annular gap between the first carrier and the second output shaft. The first axial bearing of the first carrier can be formed by a plain bearing. The first axial bearing of the first carrier can be formed by a needle bearing. A recess, for example a groove, can be formed in the second output shaft in the direction of oil flow along the first axial bearing of the first carrier. A recess, for example a groove, can be formed in the first carrier in the direction of oil flow along the first axial bearing of the first carrier. The recess in the second output shaft and the recess in the first carrier can serve to adjust a flow rate through the oil channel for the first bolt.

[0032] In one embodiment, the oil guide arrangement may include a second axial bearing that rotatably supports the first carrier. The second axial bearing may support the first carrier on a first sun gear of the first gear set. The oil channel for the first spur gear may include a bearing seat for the second axial bearing of the first carrier.

[0033] The bearing seat for the second axial bearing of the first carrier can be formed in the annular gap between the first carrier and the first output shaft. The second axial bearing of the first carrier can be formed by a plain bearing. The second axial bearing of the first carrier can be formed by a needle bearing. A recess, for example a groove, can be formed in the first carrier in the oil flow direction along the second axial bearing of the first carrier. The recess in the first carrier can serve to adjust a flow rate through the oil channel for the first spur gear.

[0034] In one embodiment, the oil guide arrangement may have a drive toothing by means of which the first carrier is connected in a rotationally fixed manner to the first output shaft. The oil channel for the first spur gear may have a passage within the drive toothing.

[0035] The drive gear teeth can be configured as a splined shaft connection. The passage within the drive gear teeth can be formed between the root and crest of tooth pairs. The passage within the drive gear teeth can be formed between the flanks of tooth pairs. The passage can be enlarged by omitting a tooth of the drive gear teeth. The passage within the drive gear teeth can be used to adjust the flow rate through the oil channel for the first spur gear.

[0036] In one embodiment, the oil guide assembly may include a collecting component with a collecting surface. The oil channel for the first pin may have an opening. The collecting surface may be configured to collect oil from the opening in the radial direction and direct it in the axial direction toward the first pin.

[0037] The opening may be formed at one end of the oil passage for the first gear set in the oil flow direction. The opening may be formed in the axial direction. The collecting surface may cover the opening of the oil passage for the first gear set in the axial direction. The collecting surface may be arranged radially outside the opening of the oil passage for the first gear set. The oil passage for the first pin may have an opening at one end toward the collecting component.

[0038] In one embodiment, the first bolt may have a cavity and a recess extending radially from the cavity of the first bolt through the first bolt to an outer side of the first bolt.

[0039] The cavity can be formed by a bore in the axial direction. A recess can be formed by a bore. The recess can be arranged in the radial direction. The diameter of the recess can be smaller than the diameter of the cavity. The bolt can have several recesses. The recesses can be evenly distributed in the circumferential direction. The bolt can have two recesses. The recesses can be arranged centrally to a bearing for the first spur gear. This allows the lubrication of the bearing for the first spur gear and the lubrication of the first spur gear to take place centrally.

[0040] The collecting surface can be designed to collect oil from the opening in the radial direction and direct it in the axial direction to the cavity of the first pin. The opening of the oil channel for the first spur gear can form a scraper edge or separation edge.

[0041] This allows for targeted oil flow separation from the oil channel of the first spur gear. The scraper edge can extend axially into the collecting surface of the collecting component.

[0042] In one aspect, a transmission comprises an input element, a first gear set, a second gear set, and an oil guide arrangement according to any one of the preceding aspects and embodiments. The input element is configured to transmit torque to the first gear set. The first gear set and the second gear set are mechanically operatively connected to one another such that torque can be transmitted from the first gear set to the second gear set. The first output shaft is configured to output torque from the first gear set. The second output shaft is configured to output torque from the second gear set. The first gear set and the second gear set can have the function of a differential. The input element, the first output shaft, the second output shaft, the oil guide component, and the first carrier can be arranged coaxially.

[0043] In one embodiment, the first gear set can be formed by a first planetary gear set with a first planetary gear, and the second gear set can be formed by a second planetary gear set. The first carrier can be formed by a first planetary carrier. The first pin can be formed by a first planetary pin. The first planetary gear can form the first spur gear. The first gear set and the second gear set can be arranged offset from one another in the axial direction.

[0044] In one aspect, a vehicle comprises drive wheels and a transmission according to any of the preceding aspects or embodiments. The first output shaft is configured to drive one of the drive wheels. The second output shaft is configured to drive another of the drive wheels. Short description of the characters Fig. 1 shows a sectional view of an embodiment of an oil guide arrangement with an oil guide component. Fig. 2 shows a sectional view of an embodiment of the oil guide arrangement. Fig. 3 shows a sectional view of an embodiment of the oil guide arrangement. Fig. 4 shows a three-dimensional detailed view of the section view from Fig. 3. Detailed description of embodiments

[0045] Fig. 1 shows a sectional view of an embodiment of an oil guide arrangement with an oil guide component 80. The oil guide arrangement has a first carrier, in this case a first planet carrier 12, a first bolt, in this case a first planet bolt 13, a stationary component 60 with a Fig. 2, a first output shaft 5, and a second output shaft 6. The oil guide member 80 has a first chamber 81 and a second chamber 82.

[0046] The first chamber 81 is in fluid communication with the second chamber 82 via a connecting passage 83. The oil guide component 80 is arranged in a stationary component 60 and is connected in a rotationally fixed manner to the stationary component 60. The oil guide component 80 is in fluid communication with the main oil channel 90 via the first chamber 81. The second chamber 82 provides oil for a bearing 40 of the first carrier, a bearing 41 of the first output shaft, a first bearing 42 of the second output shaft 6, a first axial bearing 45 of the first carrier, a second axial bearing 46 of the first carrier, and a first gear set, in this case a planetary gear set 10. Oil channels are designed as annular gaps. This enables oil guidance in a simple manner. In particular, with the present embodiment of the oil guide arrangement, oiling of the first gear set is possible without radial bores in the first output shaft 5.

[0047] Further details of the oil guide arrangement are described below.

[0048] The second output shaft 6 is rotatably mounted in the stationary component 60 by means of a first bearing 42. The first output shaft 5 extends partially in the axial direction in the second output shaft 6 and is rotatably mounted in the second output shaft 6 by means of a bearing 41. The first planet carrier 12 extends partially in the axial direction in the second output shaft 6. The first output shaft 5 extends through the first planet carrier 12. The first planet carrier 12 is connected in a rotationally fixed manner to the first output shaft 5 by means of a driver toothing. The first planet carrier 12 is rotatably mounted on the second output shaft 6 by means of a bearing 40 and a first axial bearing 45. The first planet carrier 12 is rotatably mounted on a first sun gear 11 of the first planetary gear set 10 by means of a second axial bearing 46.The first output shaft 5, the second output shaft 6, the first sun gear 11, the first planetary carrier 12 and the oil guide member 80 are arranged coaxially to each other.

[0049] The first chamber 81 of the oil guide member 80 is open radially toward an outer side. The second chamber 82 of the oil guide member 80 is open radially toward an inner side. The first chamber 81 is arranged radially outside the second chamber 82 and is aligned with the second chamber 82 such that the first chamber 81 overlaps the second chamber 82 in the axial direction.

[0050] The first chamber 81 is arranged between two grooves on an outer circumferential surface of the oil guide component 80. An O-ring seal is arranged in each of the two grooves. The O-ring seals each bear against the stationary component 60. Thus, the first chamber 81 is Fig. 1 sealed to the outside.

[0051] One in Fig. 1, the first end region arranged on the right, at which the first chamber 81 is arranged, has an outer circumference with a diameter that is smaller than the diameter of an outer circumference of an axially opposite second end region. This design serves as an insertion aid for inserting the oil guide component 80 into the stationary component 60. A further groove with a further O-ring seal is arranged at the second end region.

[0052] The second chamber 82 is arranged between two cylindrical ring surfaces on an inner circumferential surface. A rectangular ring is arranged on each of the inner circumferential surfaces. The rectangular rings are arranged in a rotationally fixed manner on the oil guide component 80 and rest in grooves on an outer circumference of the second output shaft 6. Thus, the second chamber 82 is in Fig. 1 sealed to the outside.

[0053] The second output shaft 6 is rotatable relative to the oil guide component 80. This results in a small leakage via the Fig. 1 left rectangular ring. To the left of the left rectangular ring, a radial shaft seal is arranged on a cylindrical receiving surface on an inner circumference of the oil guide component 80. The cylindrical receiving surface has circumferential grooves for receiving the radial shaft seal. A drain hole is provided between the radial shaft seal and the left rectangular ring, which prevents oil buildup and is arranged such that the radial shaft seal is sufficiently supplied with oil.

[0054] In addition, a small leakage occurs via the Fig. 1 right rectangular ring. The leakage serves to lubricate the first bearing 42 of the second output shaft 6.

[0055] The second chamber 82 is in fluid communication with the shaft passage 91. Via the shaft passage 91, an outer side of the second output shaft 6 at the location of the second chamber 82 is in fluid communication with an interior of the second output shaft 6. Thus, the main oil channel 90 is in fluid communication with the shaft passage 91 via the oil guide component 80.

[0056] An oil channel 92 for the first gear set is formed by an annular gap between the first output shaft 5 and the second output shaft 6. The shaft passage 91 opens into the oil channel 92 for the first gear set. The oil channel 92 for the first gear set conducts oil to the bearing 41 of the first output shaft 5. The first output shaft 5 is hollow and closed by a plug. As a result, no oil can flow from the bearing 41 of the first output shaft 5 through the first output shaft 5. The second output shaft 6 is not hollow.

[0057] In this respect, no oil can flow from the bearing 41 of the first output shaft 5 through the second output shaft 6.

[0058] Fig. Figure 2 shows a sectional view of an embodiment of the oil guide assembly. The present embodiment has all the features of the previous embodiment. An oil flow is Fig. 2 shown by thick arrows.

[0059] An oil channel 93 for the first pin is formed by an annular gap between the first carrier and the second output shaft 6. The oil channel 93 for the first pin is in fluid communication with one end of the oil channel 92 for the first gear set. The oil channel 93 for the first pin includes a bearing seat for the bearing 40 of the first carrier and a bearing seat for the first thrust bearing 45 of the first carrier and lubricates these bearings. The oil channel 93 for the first pin is in fluid communication with a cylindrical cavity in the first pin via a collecting component 85. The collecting component 85 is connected to the first carrier in a rotationally fixed manner. The collecting component 85 is designed to collect oil from an opening of the oil channel 93 for the first pin in the radial direction and to direct it in the axial direction to the cavity of the first pin.

[0060] The first pin has two recesses that extend radially from the cavity of the first pin through the first pin to an outer side of the first pin. The recesses are formed by bores. The recesses are arranged opposite one another. The recesses are arranged centrally with respect to a bearing for a first spur gear, in this case a first planetary gear 14. The bearing for the first spur gear of the first gear set is lubricated via the recesses.

[0061] An oil channel 94 for the first spur gear is formed by an annular gap between the first output shaft 5 and the first carrier. The oil channel 94 for the first spur gear is in fluid communication with the end of the oil channel 92 for the first gear set. The oil channel 94 for the first spur gear comprises a bearing seat for the second axial bearing 46 of the first carrier and oils this bearing. The oil channel 94 for the first spur gear is configured to conduct oil to the first spur gear via the second axial bearing 46. In particular, the oil channel 94 for the first spur gear is in fluid communication with the first spur gear.

[0062] In particular, the oil channel 92 for the first gear set branches into the oil channel 93 for the first pin and into the oil channel 94 for the first spur gear.

[0063] The first planetary gear set 10 includes the first sun gear 11, the first planet carrier 12, a number of first planet pinions 13, a number of first planet gears 14, and a first ring gear 15. The first sun gear 11 meshes with one of the first planet gears 14. One of the first planet gears 14 meshes with the first ring gear 15 and is rotatably mounted on one of the first planet pinions 13. The first planet pinions 13 are connected to the first planet carrier 12.

[0064] The second gear set, in this case a second planetary gear set 20, is arranged offset in the axial direction from the first gear set. The second gear set has a second sun gear 21, a second planet carrier 22, a number of second planet pinions 23, a number of second planet gears 24, and a second ring gear 25. The second sun gear 21 meshes with one of the second planet gears 24. One of the second planet gears 24 meshes with the second ring gear 25 and is rotatably mounted on one of the second planet pinions 23. The second planet pinions 23 are connected to the second planet carrier 22. The second planet carrier 22 is connected to the stationary component 60. The first ring gear 15 and the second sun gear 21 are connected to one another in a rotationally fixed manner.

[0065] Fig. Figure 3 shows a sectional view of one embodiment of the oil guide assembly. The present embodiment has all the features of one of the previous embodiments.

[0066] The oil passage 93 for the first pin includes a recess. The recess is formed in the second output shaft 6 in the oil flow direction along the bearing seat for the bearing 40 of the first carrier. The recess in the second output shaft 6 serves to adjust the flow rate through the oil passage 93 for the first pin.

[0067] The oil passage 94 for the first spur gear includes a passage through the drive gear teeth of the first output shaft 5 and the first carrier. One tooth on the first output shaft 5 is removed from the drive gear teeth. This enlarges the passage through the drive gear teeth and serves to adjust the flow rate through the oil passage 94 for the first spur gear.

[0068] Fig. 4 shows a three-dimensional detailed view of the section view from Fig.3. In particular, the recess of the oil passage 93 for the first pin is shown, which is formed in the second output shaft 6 along the bearing 40 for the first carrier. In particular, the passage of the oil passage 94 for the first spur gear is shown, which is formed by removing a tooth on the first output shaft 5. Reference symbol 5 First output shaft 6 Second output shaft 10 First planetary gear set 11 First sun gear of the first planetary gear set 12 First planet carrier of the first planetary gear set 13 First planetary pin of the first planetary gear set 14 First planetary gear of the first planetary gear set 15 First ring gear of the first planetary gear set 20 Second planetary gear set 21 Second sun gear of the second planetary gear set 22 Second planet carrier of the second planetary gear set 23 Second planetary pin of the second planetary gear set 24 Second planetary gear of the second planetary gear set 25 Second ring gear of the second planetary gear set 40 bearings of the first carrier 41 Bearing of the first output shaft 42 First bearing of the second output shaft 45 First thrust bearing of the first carrier 46 Second axial bearing of the first carrier 60 Stationary component 80 Oil guide component 81 First Chamber 82 Second Chamber 83 connecting passage 85 Catchment component 90 Main oil channel 91 Wave passage 92 Oil channel for the first wheel set 93 Oil channel for the first bolt 94 Oil channel for the first spur gear

Claims

[1] Oil guide component (80) for an oil guide arrangement comprising a stationary component (60) with a main oil channel (90), a first output shaft (5) and a second output shaft (6), with a first chamber (81) and a second chamber (82), wherein an outer side of the second output shaft (6) is in fluid communication with an inner side of the second output shaft (6) via a shaft passage (91), the oil guide component (80) is designed such that it can be connected to the stationary component (60) in a rotationally fixed manner, the first chamber (81) is open in the radial direction towards an outer side and is designed such that it can be brought into fluid communication with the main oil channel (90), the second chamber (82) is open in the radial direction towards an inner side and is designed such that it can be brought into fluid communication with the shaft passage (91), the first chamber (81) is arranged radially outside the second chamber (82) and overlaps the second chamber (82) in the axial direction, the first chamber (81) is in fluid communication with the second chamber (82) by means of a connecting passage (83), two cylindrical annular surfaces on a peripheral surface of the oil guide component (80) are designed to receive a sealing element, the second chamber (82) is arranged between the two annular surfaces, a cylindrical receiving surface on a peripheral surface is designed to receive a radial shaft sealing ring between one of the annular surfaces and an outer side of the oil guide component (80), and a drain hole is formed in the axial direction between the cylindrical receiving surface and one of the cylindrical annular surfaces. [2] Oil guide component (80) according to claim 1, characterized by , that two grooves on a peripheral surface of the oil guide component (80) are designed to receive a seal, wherein the first chamber (81) is arranged between the two grooves. [3] Oil guide component (80) according to one of the preceding claims, characterized by that a first end region at which the first chamber (81) is arranged has an outer circumference with a diameter which is smaller than an outer circumference of an axially opposite second end region. [4] Oil guide arrangement for a transmission having a first gear set with a first spur gear, with a first output shaft (5), a second output shaft (6), a first carrier, a first bolt, a stationary component (60) and an oil guide component (80) according to one of the preceding claims, wherein the first bolt is designed such that it rotatably supports the first spur gear and is connected to the first carrier, the stationary component (60) has a main oil channel (90), an outer side of the second output shaft (6) is in fluid communication with an inner side of the second output shaft (6) via a shaft passage (91), the main oil channel (90) is in fluid communication with the shaft passage (91) via the oil guide component (80), an oil channel (92) for the first gear set is formed by a gap between the first output shaft (5) and the second output shaft (6) and is in fluid communication with the shaft passage (91), an oil passage (93) for the first pin is formed by a gap between the first carrier and the second output shaft (6) and is in fluid communication with the oil passage (92) for the first gear set, and an oil channel (94) for the first spur gear is formed by a gap between the first output shaft (5) and the first carrier and is in fluid communication with the oil channel (92) for the first gear set. [5] Oil guide arrangement according to claim 4, characterized by , that the oil guide arrangement comprises a bearing (41) which rotatably supports the first output shaft (5) in the second output shaft (6), the oil channel (92) for the first gear set is in fluid communication with the bearing (41) of the first output shaft (5). [6] Oil guide arrangement according to claim 4 or 5, characterized by , that the oil guide arrangement comprises a bearing (40) which rotatably supports the first carrier in the second output shaft (6), and the oil channel (93) for the first bolt has a bearing seat for the bearing (40) of the first carrier. [7] Oil guide arrangement according to one of claims 4-6, characterized by , that the oil guide arrangement comprises a first axial bearing (45) which rotatably supports the first carrier on the second output shaft (6), wherein the oil channel (93) for the first bolt has a bearing seat for the first axial bearing (45) of the first carrier. [8] Oil guide arrangement according to one of claims 4-7, characterized by , that the oil guide arrangement comprises a second axial bearing (46) which rotatably supports the first carrier, wherein the oil channel (94) for the first spur gear has a bearing seat for the second axial bearing (46) of the first carrier. [9] Oil guide arrangement according to one of claims 4-8, characterized by , that the oil guide arrangement has a driving toothing by means of which the first carrier is connected in a rotationally fixed manner to the first output shaft (5), wherein the oil channel (94) for the first spur gear has a passage within the driving toothing. [10] Oil guide arrangement according to one of claims 4-9, characterized by , that the oil guide arrangement comprises a collecting component (85) with a collecting surface, wherein the oil channel (93) for the first bolt has an opening, and the collecting surface is designed to collect oil from the opening in the radial direction and direct it in the axial direction to the first bolt. [11] Oil guide arrangement according to one of claims 4-10, characterized by that the first bolt has a cavity and a recess which extends radially from the cavity of the first bolt through the first bolt to an outer side of the first bolt. [12] A transmission comprising an input element, a first gear set, a second gear set and an oil guide arrangement according to any one of claims 4-11, wherein the input element is designed to transmit a torque to the first gear set, the first wheelset and the second wheelset are mechanically connected to each other in such a way that a torque can be transmitted from the first wheelset to the second wheelset, the first output shaft (5) is designed to output a torque from the first gear set, and the second output shaft (6) is designed to output a torque from the second gear set. [13] Transmission according to claim 12, characterized by , that the first gear set is formed by a first planetary gear set (10) with a first planetary gear (14) and the second gear set is formed by a second planetary gear set (20), the first carrier is formed by a first planet carrier (12), the first bolt is formed by a first planetary bolt (13), and the first planetary gear (14) forms the first spur gear. [14] A vehicle with drive wheels and a transmission according to claim 12 or 13, wherein the first output shaft (5) is designed to drive one of the drive wheels, and the second output shaft (6) is designed to drive another of the drive wheels.

Citation Information

Patent Citations

  • Transmission for a vehicle and drivetrain with such a transmission

    DE102022213923A1