OIL GUIDING COMPONENT FOR AN OIL GUIDING ARRANGEMENT

Abstract

An oil guiding component for an oil guiding arrangement has a body rotationally fixedly connectable to a stationary component of the oil guiding arrangement, the stationary component defining a main oil channel. The body defines a first chamber opening in a radial direction toward an outer side of the body and being fluidly connectable to the main oil channel. The body also defines a second chamber opening in the radial direction toward an inner side of the body. The first chamber is outside of the second chamber in the radial direction and overlaps the second chamber in an axial direction. The first chamber is fluidly connected to the second chamber via a connection passage. The second chamber is fluidly connectable to a shaft passage through which an outer side and an inner space of a second output shaft of the oil guiding arrangement are in fluid communication.

Claims

1-17: (canceled)

18. An oil guiding component (80) for an oil guiding arrangement comprising a stationary component (60) with a main oil channel (90), a first output shaft (5), and a second output shaft (6), an outer side of the second output shaft (6) being in fluid communication with an inner space of the second output shaft (6) via a shaft passage (91), the oil guiding component (80) comprising: a body rotationally fixedly connectable to the stationary component (60), the body defining: a first chamber (81), the first chamber (81) being open in a radial direction toward an outer side of the body, the first chamber (81) being fluidly connectable to the main oil channel (90); and a second chamber (82), the second chamber (82) being open in the radial direction toward an inner side of the body, the first chamber (81) being outside of the second chamber (82) in the radial direction, the first chamber (81) overlapping the second chamber (82) in an axial direction, the first chamber (81) being fluidly connected to the second chamber (82) via a connection passage (83), the second chamber (82) being fluidly connectable to the shaft passage (91).

19. The oil guiding component (80) of claim 18, wherein two grooves are formed on a circumferential surface of the body of the oil guiding component (80) to accommodate a seal, the first chamber (81) being defined between the two grooves.

20. The oil guiding component (80) of claim 18, wherein two cylindrical annular surfaces are formed on a circumferential surface of the body of the oil guiding component (80) to accommodate a seal member, the second chamber (82) being defined between the two cylindrical annular surfaces.

21. The oil guiding component (80) of claim 20, wherein a cylindrical receiving surface is formed on the circumferential surface for receiving a radial shaft seal ring between one of the two cylindrical annular surfaces and an outer side of the oil guiding component.

22. The oil guiding component (80) of claim 21, wherein a drain hole is defined in the body between the cylindrical receiving surface and one of the two cylindrical annular surfaces.

23. The oil guiding component (80) of claim 18, wherein a first end portion of the body at which the first chamber (81) is defined has an outer circumference with a diameter smaller than an outer circumference of a second end portion of the body located opposite the first end portion in the axial direction.

24. An oil guiding arrangement for a transmission, comprising: a first gearset with a first spur gear, a first carrier, and a first bolt, the first bolt rotatably supporting the first spur gear and being connected to the first carrier; a first output shaft (5); a second output shaft (6), an outer side of the second output shaft (6) being in fluid communication with an inner space of the second output shaft (6) via a shaft passage (91), an oil channel (92) for the first gearset being defined by a first gap between the first output shaft (5) and the second output shaft (6) and being fluidly connected with the shaft passage (91), an oil channel (93) for the first bolt being defined by a second gap between the first carrier and the second output shaft (6) and fluidly connected with the oil channel (92) for the first gearset, an oil channel (94) for the first spur gear being defined by a third gap between the first output shaft (5) and the first carrier and fluidly connected with the oil channel (92) for the first gearset; a stationary component (60), the stationary component (60) defining a main oil channel (90); and an oil guiding component (80) rotationally fixedly connectable to the stationary component (60), the main oil channel (90) being fluidly connected to the shaft passage (91) via the oil guiding component (80), the oil guiding component (80) defining: a first chamber (81), the first chamber (81) being open in a radial direction toward an outer side of the oil guiding component (80), the first chamber (81) being fluidly connectable to the main oil channel (90); and a second chamber (82), the second chamber (82) being open in the radial direction toward an inner side of the oil guiding component (80), the first chamber (81) being outside of the second chamber (82) in the radial direction, the first chamber (81) overlapping the second chamber (82) in an axial direction, the first chamber (81) is fluidly connected to the second chamber (82) via a connection passage (83), the second chamber (82) being fluidly connectable to the shaft passage (91).

25. The oil guiding arrangement of claim 24, further comprising a bearing (41) of the first output shaft (5), the bearing (41) of the first output shaft (5) rotatably supporting the first output shaft (5) in the second output shaft (6), the oil channel (92) for the first gearset being fluidly connected with the bearing (41) of the first output shaft (5).

26. The oil guiding arrangement of claim 24, further comprising a bearing (40) of the first carrier, the bearing (40) of the first carrier rotatably supporting the first carrier in the second output shaft (6), the oil channel (93) for the first bolt defining a bearing seat for the bearing (40) of the first carrier.

27. The oil guiding arrangement of claim 24, further comprising a first axial bearing (45) of the first carrier, the first axial bearing (45) of the first carrier rotatably supporting the first carrier on the second output shaft (6), the oil channel (93) for the first bolt defining a bearing seat for the first axial bearing (45) of the first carrier.

28. The oil guiding arrangement of claim 24, further comprising a second axial bearing (46) of the first carrier, the second axial bearing (46) rotatably supporting the first carrier, the oil channel (94) for the first spur gear defining a bearing seat for the second axial bearing (46) of the first carrier.

29. The oil guiding arrangement of claim 24, wherein the first carrier is non-rotatably connected to the first output shaft (5) by a take-up toothing, the take-up toothing being defined in the oil channel (94) for the first spur gear.

30. The oil guiding arrangement of claim 24, further comprising a collecting component (85) with a collecting surface, the collecting surface being configured to guide oil from an opening of the oil channel (93) for the first bolt defined in the radial direction and to the first bolt in the axial direction.

31. The oil guiding arrangement of claim 24, wherein the first bolt comprises a cavity and a recess, the recess of the first bolt extending through the first bolt in the radial direction from the cavity of the first bolt to an outer side of the first bolt.

32. A transmission, comprising: the oil guiding arrangement of claim 24; an input element, the input element being configured to transmit torque to the first gearset; and a second gearset, the first gearset and the second gearset being mechanically operatively connected to each other such that torque is transmittable from the first gearset to the second gearset, wherein the first output shaft (5) outputs a first torque from the first gearset, and wherein the second output shaft (6) outputs a second torque from the second gearset.

33. The transmission of claim 32, wherein the first gearset is a first planet gearset (10) with a first planet gear (14), the first planet gear (14) being the first spur gear, the first carrier being a first planet carrier (12), and the first bolt being a first planet bolt (13), and wherein the second gearset comprises a second planet gearset (20).

34. A vehicle, comprising: drive wheels; and the transmission of claim 32, the first output shaft (5) being configured for driving one of the drive wheels, and the second output shaft (6) being configured for driving another one of the drive wheels.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG. 1 shows a sectional view of an embodiment of an oil guiding arrangement including an oil guiding component.

[0044] FIG. 2 shows a sectional view of an embodiment of the oil guiding arrangement.

[0045] FIG. 3 shows a sectional view of an embodiment of the oil guiding arrangement.

[0046] FIG. 4 shows a three-dimensional, perspective detail view of the sectional view of FIG. 3.

DETAILED DESCRIPTION

[0047] Reference will now be made to embodiments of the invention, one or more examples of which are shown in the drawings. Each embodiment is provided by way of explanation of the invention, and not as a limitation of the invention. For example, features illustrated or described as part of one embodiment can be combined with another embodiment to yield still another embodiment. It is intended that the present invention include these and other modifications and variations to the embodiments described herein.

[0048] FIG. 1 shows a sectional view of an embodiment of an oil guiding arrangement including an oil guiding component 80. The oil guiding arrangement includes a first carrier, in the present case a first planet carrier 12, a first bolt, in the present case a first planet bolt 13, a stationary component 60 with a main oil channel 90 (FIG. 2), a first output shaft 5, and a second output shaft 6. The oil guiding component 80 includes a first chamber 81 and a second chamber 82.

[0049] The first chamber 81 is fluidly connected to the second chamber 82 via a connection passage 83. The oil guiding component 80 is in the stationary component 60 and rotationally fixedly connected to the stationary component 60. The oil guiding component 80 is fluidly connected to the main oil channel 90 via the first chamber 81. The second chamber 82 provides oil for a bearing 40 of the first carrier 12, a bearing 41 of the first output shaft 5, a first bearing 42 of the second output shaft 6, a first axial bearing 45 of the first carrier 12, a second axial bearing 46 of the first carrier 12, and a first gearset, in the present case a planet gearset 10. Oil channels are formed as annular gaps. The oil guidance is thereby possible in a simple manner. In particular, with the present embodiment of the oil guiding arrangement, an oiling of the first gearset 10 is possible without radial bores in the first output shaft 5.

[0050] Further details of the oil guiding arrangement are described below.

[0051] The second output shaft 6 is rotatably supported in the stationary component 60 by the first bearing 42. The first output shaft 5 extends sectionwise in an axial direction in the second output shaft 6 and is rotatably supported by the bearing 41 in the second output shaft 6. The first planet carrier 12 extends in regions in an 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 non-rotatably connected to the first output shaft 5 by a take-up toothing. The first planet carrier 12 is rotatably supported on the second output shaft 6 by the bearing 40 and by the first axial bearing 45. The first planet carrier 12 is rotatably supported on a first sun gear 11 of the first planet gearset 10 by the second axial bearing 46. The first output shaft 5, the second output shaft 6, the first sun gear 11, the first planet carrier 12, and the oil guiding component 80 are arranged coaxially with each other.

[0052] The first chamber 81 of the oil guiding component 80 is open in a radial direction toward an outer side. The second chamber 82 of the oil guiding component 80 is open in a radial direction toward an inner side. The first chamber 81 is disposed outside the second chamber 82 in a radial direction and is aligned with the second chamber 82 such that the first chamber 81 overlaps the second chamber 82 in an axial direction.

[0053] The first chamber 81 is disposed between two grooves on an outer circumferential surface of the oil guiding component 80. In each of the two grooves, an O-ring seal is disposed. The O-ring seals each abut the stationary component 60. Thus, the first chamber 81 is sealed to the left and right in FIG. 1 toward an outer side.

[0054] A first end portion arranged on the right in FIG. 1 at which the first chamber 81 is arranged includes an outer circumference with a diameter smaller than a diameter of an outer circumference of a second end portion located opposite in an axial direction. This configuration serves as an insertion aid for inserting the oil guiding component 80 into the stationary component 60. A further groove with a further O-ring seal is disposed on the second end region.

[0055] The second chamber 82 is disposed between two cylindrical annular surfaces on an inner circumferential surface. On each of the inner circumferential surfaces, a rectangular ring is arranged. The rectangular rings are rotationally fixedly arranged on the oil guiding component 80 and abut in grooves on an outer circumference of the second output shaft 6. Thus, the second chamber 82 is sealed to the right and left in FIG. 1 toward an outer side.

[0056] The second output shaft 6 is rotatable relative to the oil guiding component 80. A slight leakage thereby arises across the rectangular ring on the left in FIG. 1. To the left of the left rectangular ring, a radial shaft seal ring is arranged on a cylindrical receiving surface on an inner circumference of the oil guiding component 80. The cylindrical receiving surface includes grooves in the circumferential direction for receiving the radial shaft seal ring. Between the radial shaft seal ring and the left rectangular ring, a drain hole is provided which prevents oil build-up and is arranged such that the radial shaft seal ring is sufficiently supplied with oil.

[0057] In addition, a slight leakage arises across the rectangular ring on the right in FIG. 1. The leakage serves for oiling the first bearing 42 of the second output shaft 6.

[0058] The second chamber 82 is fluidly connected to the shaft passage 91. Via the shaft passage 91, an outer side of the second output shaft 6 is in fluid communication with an inner space or side of the second output shaft 6 at the location of the second chamber 82. Thus, the main oil channel 90 (FIG. 2) is fluidly connected to the shaft passage 91 via the oil guiding component 80.

[0059] An oil channel 92 for the first gearset 10 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 gearset 10. The oil channel 92 for the first gearset 10 guides oil to the bearing 41 of the first output shaft 5. The first output shaft 5 is hollow and closed by a plug. In this respect, no oil flows from the bearing 41 of the first output shaft 5 through the first output shaft 5. The second output shaft 6 is not hollow. In this respect, no oil flows from the bearing 41 of the first output shaft 5 through the second output shaft 6.

[0060] FIG. 2 shows a sectional view of an embodiment of the oil guiding arrangement. The present embodiment includes all the features of the preceding embodiment. An oil flow is shown in FIG. 2 with bold arrows.

[0061] An oil channel 93 for the first bolt 13 is formed by an annular gap between the first carrier 12 and the second output shaft 6. The oil channel 93 for the first bolt 13 is fluidly connected with one end of the oil channel 92 for the first gearset 10. The oil channel 93 for the first bolt 13 includes a bearing seat for the bearing 40 of the first carrier and a bearing seat for the first axial bearing 45 of the first carrier 12 and lubricates these bearings 40, 45. The oil channel 93 for the first bolt 13 is fluidly connected via a collecting component 85 with a cylindrical cavity in the first bolt 13. The collecting component 85 is non-rotatably connected to the first carrier 12. The collecting component 85 is configured to catch oil from an opening of the oil channel 93 for the first bolt 13 in a radial direction and guide it to the cavity of the first bolt 13 in an axial direction.

[0062] The first bolt 13 includes two recesses which extend in a radial direction from the cavity of the first bolt 13 through the first bolt 13 to an outer side of the first bolt 13. The recesses are formed by bores. The recesses are arranged opposite each other. The recesses are disposed centrally with respect to a bearing for a first spur gear, in the present case a first planet gear 14. Via the recesses, the bearing for the first spur gear 14 of the first gearset 10 is lubricated.

[0063] An oil channel 94 for the first spur gear 14 is formed by an annular gap between the first output shaft 5 and the first carrier 12. The oil channel 94 for the first spur gear 14 is fluidly connected with the end of the oil channel 92 for the first gearset 10. The oil channel 94 for the first spur gear 14 includes a bearing seat for the second axial bearing 46 of the first carrier 12 and lubricates this bearing. Via the second axial bearing 46, the oil channel 94 for the first spur gear 14 is configured such that oil is conducted to the first spur gear 14. In particular, the oil channel 94 for the first spur gear 14 is fluidly connected with the first spur gear 14.

[0064] In particular, the oil channel 92 for the first gearset 10 branches into the oil channel 93 for the first bolt 13 and into the oil channel 94 for the first spur gear 14.

[0065] The first planet gearset 10 includes the first sun gear 11, the first planet carrier 12, a number of first planet bolts 13, a number of first planet gears 14, and a first ring gear 15. The first sun gear 11 is in engagement with one of the first planet gears 14. One of the first planet gears 14 is in engagement with the first ring gear 15 and rotatably supported on one of the first planet bolts 13. The first planet bolts 13 are connected to the first planet carrier 12.

[0066] The second gearset, in the present case a second planet gearset 20, is offset from the first gearset 10 in an axial direction. The second gearset 20 includes a second sun gear 21, a second planet carrier 22, a number of second planet bolts 23, a number of second planet gears 24, and a second ring gear 25. The second sun gear 21 is in engagement with one of the second planet gears 24. One of the second planet gears 24 is in engagement with the second ring gear 25 and rotatably supported on one of the second planet bolts 23. The second planet bolts 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 rotationally fixedly connected to each other.

[0067] FIG. 3 shows a sectional view of an embodiment of the oil guiding arrangement. The present embodiment includes all the features of any one of the preceding embodiments.

[0068] The oil channel 93 for the first bolt 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 12. The recess in the second output shaft 6 serves for adjusting a flow quantity through the oil channel 93 for the first bolt 13.

[0069] The oil channel 94 for the first spur gear 14 includes a passage through the take-up toothing of the first output shaft 5 and of the first carrier 12. A tooth on the first output shaft 5 is removed in the take-up toothing. This enlarges the passage through the take-up toothing and serves for adjusting a flow quantity through the oil channel 94 for the first spur gear.

[0070] FIG. 4 shows a three-dimensional detail view of the sectional view of FIG. 3. In particular, the recess of the oil channel 93 for the first bolt 13 (FIGS. 1-3) is shown here, which recess is formed in the second output shaft 6 along the bearing 40 for the first carrier 12. In particular, the passage of the oil channel 94 for the first spur gear 14 (FIGS. 2-3) is shown here, which passage is formed by removing a tooth on the first output shaft 5.

[0071] Modifications and variations can be made to the embodiments illustrated or described herein without departing from the scope and spirit of the invention as set forth in the appended claims. In the claims, reference characters corresponding to elements recited in the detailed description and the drawings may be recited. Such reference characters are enclosed within parentheses and are provided as an aid for reference to example embodiments described in the detailed description and the drawings. Such reference characters are provided for convenience only and have no effect on the scope of the claims. In particular, such reference characters are not intended to limit the claims to the particular example embodiments described in the detailed description and the drawings.

REFERENCE SIGNS

[0072] 5 first output shaft [0073] 6 second output shaft [0074] 10 first planet gearset [0075] 11 first sun gear of the first planet gearset [0076] 12 first planet carrier of the first planet gearset [0077] 13 first planet bolt of the first planet gearset [0078] 14 first planet gear of the first planet gearset [0079] 15 first ring gear of the first planet gearset [0080] 20 second planet gearset [0081] 21 second sun gear of the second planet gearset [0082] 22 second planet carrier of the second planet gearset [0083] 23 second planet bolt of the second planet gearset [0084] 24 second planet gear of the second planet gearset [0085] 25 second ring gear of the second planet gearset [0086] 40 bearing of the first carrier [0087] 41 bearing of the first output shaft [0088] 42 first bearing of the second output shaft [0089] 45 first axial bearing of the first carrier [0090] 46 second axial bearing of the first carrier [0091] 60 stationary component [0092] 80 oil guiding component [0093] 81 first chamber [0094] 82 second chamber [0095] 83 connection passage [0096] 85 collecting component [0097] 90 main oil channel [0098] 91 shaft passage [0099] 92 oil channel for the first gearset [0100] 93 oil channel for the first bolt [0101] 94 oil channel for the first spur gear