EP3519225A1 - Achsgetriebe für ein kraftfahrzeug - Google Patents
Achsgetriebe für ein kraftfahrzeugInfo
- Publication number
- EP3519225A1 EP3519225A1 EP17768808.2A EP17768808A EP3519225A1 EP 3519225 A1 EP3519225 A1 EP 3519225A1 EP 17768808 A EP17768808 A EP 17768808A EP 3519225 A1 EP3519225 A1 EP 3519225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bearing
- output shaft
- rotation
- axes
- ring gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/3069—Interrelationship between two or more final output mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
- B60K17/24—Arrangements of mountings for shafting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
- B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2300/00—Purposes or special features of road vehicle drive control systems
- B60Y2300/80—Control of differentials
- B60Y2300/82—Torque vectoring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2410/00—Constructional features of vehicle sub-units
- B60Y2410/10—Housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H2048/385—Constructional details of the ring or crown gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
- F16H48/42—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon
- F16H2048/423—Constructional details characterised by features of the input shafts, e.g. mounting of drive gears thereon characterised by bearing arrangement
Definitions
- the invention relates to an axle drive for a motor vehicle, having a first input shaft, a second input shaft, a first output shaft and a second output shaft, wherein the first input shaft with the first output shaft by means of a first Tellerradgetriebes and the second input shaft with the second output shaft by means of a second Tellerradgetriebes permanently coupled.
- the axle drive is assigned to an axle of the motor vehicle, for example a front axle, but preferably to a rear axle of the motor vehicle.
- a torque is transmitted from a drive device of the motor vehicle to wheels of the motor vehicle.
- an operative connection between the drive device of the motor vehicle and the axle or its wheels is produced or at least produced via the axle drive.
- the drive device is permanently coupled to the first input shaft and the second input shaft or at least coupled.
- the operative connection between the drive device and the two input shafts is via a transmission device that is different from the axle drive.
- the transmission device can be designed, for example, as a differential gear, in particular as an axle differential.
- the two input shafts can insofar be present as cardan shafts or at least be coupled to cardan shafts, in particular permanently.
- the two input shafts of the final drive are permanently coupled to the output shafts of the transmission device, in particular rigid.
- the two output shafts of the axle drive are provided on the wheel side, that is to say arranged with respect to a torque flow on a side facing away from the drive device of the crown gear.
- the first Output shaft is assigned, for example, a first wheel of the axle and the second output shaft at least a second wheel of the same axis, in particular permanently and / or rigidly coupled thereto.
- a clutch for example a dog clutch, can be provided in the active compounds.
- the first input shaft is permanently coupled to the first output shaft and the second input shaft is permanently coupled to the second output shaft.
- the first crown gear and the second crown gear serve for this purpose.
- an arrangement of the input shafts and the output shafts is achieved at an angle to each other.
- the crown gear each have a Hypoidversatz, so that the output shafts are arranged offset with respect to the input shafts, in particular skewed to this exist, so spaced from them are arranged in parallel.
- first input shaft and the second input shaft are arranged coaxially with each other and the first output shaft and the second output shaft starting from the respective Tellerradgetriebe extend in opposite directions, wherein an axial plane receives the axes of rotation of the input shafts and a plane perpendicular to the axis plane with the axes of rotation of the output shafts each encloses an angle of at least 75 ° and at most 90 °, and that one with the first Output shaft rigidly connected first ring gear of the first Tellerradgetriebes and / or rigidly connected to the second output shaft second ring gear of the second Tellerradgetriebes each by means of a first radial bearing and a second radial bearing, which are arranged in O-arrangement to each other or formed as a fixed bearing and floating bearing, in are mounted a transmission housing of the axle drive / is.
- the two input shafts are arranged coaxially with each other.
- the second input shaft extends in the first input shaft or vice versa.
- the two output shafts lie substantially opposite one another, in particular with respect to the plane of symmetry, and extend, starting from the respective disk wall transmission, in opposite directions, preferably in each case in the direction of the corresponding wheel of the motor vehicle.
- Both the axis of rotation of the first output shaft and the axis of rotation of the second output shaft intersects, for example, the two axes of rotation of the input shafts and the common axis of rotation of the input shafts.
- axes of rotation of the output shafts intersect each of the axes of rotation of the input shafts.
- the crown gear can be designed without Hypoidversatz.
- an embodiment with Hypoidversatz is also feasible, in which consequently at least the axis of rotation of one of the output shafts do not intersect the axes of rotation of the input shafts.
- the axes of rotation of both output shafts do not intersect the axes of rotation of the input shafts.
- the (imaginary) axis plane receives the axes of rotation of the input shafts in itself.
- the axial plane is arranged substantially horizontally with respect to an installation position of the transaxle.
- the plane perpendicular to the plane of the axis which likewise accommodates the axes of rotation of the input shafts, is in the form of a vertical plane, that is to say it is arranged substantially vertically in the installed position of the axle drive.
- the plane perpendicular to the axial plane includes, at least in section, namely in particular in cross section with respect to the axes of rotation of the input shafts, with the axes of rotation of the output shafts in each case an angle of at least 75 ° and at most 90 °.
- each of the axes of rotation thus encloses an angle with the plane which fulfills the stated requirements.
- the angles between the axes of rotation and the plane may be identical, but alternatively different.
- the angle or angles are at least 75 ° and at most 90 °.
- the angle or angles are at least 80 °, at least 85 °, at least 86 °, at least 87 °, at least 88 ° or at least 89 °, but always at most 90 °. This means that the angle or angles can be exactly equal to 90 ° or even less than 90 °.
- the plane perpendicular to the plane of the axis is at least in section, namely, viewed in particular in cross section with respect to the axes of rotation of the input shafts, as the plane of symmetry for the axes of rotation of the output shafts.
- the axes of rotation of the output shafts are arranged or aligned symmetrically relative to one another with respect to the plane of symmetry.
- the second ring gear is rigidly connected.
- the first ring gear is part of the first Tellerradgetriebes
- the second ring gear part of the second Tellerradgetriebes.
- At least one of these ring gears, but preferably both ring gears, are now each supported by means of two radial bearings, namely the first radial bearing and the second radial bearing, in the transmission housing of the axle drive.
- the two radial bearings are arranged in O arrangement to each other. Alternatively, they can also be designed as a fixed bearing and as a floating bearing. In the latter case, one of the radial bearing forms the fixed bearing and the other one of the radial bearings, the floating bearing.
- Such an arrangement and / or configuration of the radial bearing allows a reliable and compact storage of the ring gear or the ring gears on and / or in the transmission housing.
- a further embodiment of the invention provides that the axes of rotation of the two input shafts and the axes of rotation of the two output shafts lie in the axial plane. This represents a particularly advantageous orientation of the input shafts and the output shafts, which allows an extremely compact design of the axle drive. If both the input waves and the output waves are arranged in the axial plane, the above-described definition using the plane of symmetry can be dispensed with. This is no longer necessary for the definition of the axis level.
- a further particularly preferred embodiment of the invention provides that in the gear housing, a bearing element is arranged, which has a first bearing projection and a second bearing projection, wherein on the first bearing projection, the first ring gear of the first Tellerradge- t ebes and on the second bearing projection, the second Ring gear of the second Tellerradgetriebes is stored.
- the bearing element is arranged in the transmission housing.
- the bearing element has the two bearing projections, namely the first bearing projection and the second bearing projection on.
- the bearing projections serve for the storage of ring gears of the two crown gear. On the first bearing projection, the first ring gear of the first ring gear is so far stored and on the second bearing projection, the second ring gear of the second ring gear.
- the bearing is preferably configured directly, so that the respective ring gear is seated on the corresponding bearing projection.
- it can alternatively be provided only indirectly storage, in which, for example, the ring gears are mounted on the respective output shaft on the bearing projection.
- the output shaft is mounted directly on or on the bearing projection.
- the storage of the respective ring gear is provided only indirectly via the output shaft.
- the ring gear may in this case be arranged, for example, in the axial direction with respect to its axis of rotation or the axis of rotation of the output shaft spaced from the bearing projection.
- the first ring gear is rigidly connected to the first output shaft or alternatively configured in one piece with it. This can be provided analogously for the second ring gear and the second output shaft.
- the bearing element is a device formed separately from the transmission housing. First of all, the gearbox housing and the bearing ment separately prepared and then arranged the bearing element on or in the transmission housing.
- the bearing element is arranged centrally in the transmission housing, in particular seen centrally with respect to the axes of rotation of the two input shafts. In particular, the axes of rotation of the two input shafts extend through the bearing element, thus cutting it.
- this is preferably designed in several parts and has for this purpose, for example, a first housing shell and a second housing shell.
- the two bearing projections are, for example, round in cross-section with respect to their respective central longitudinal axis and preferably extend in the axial direction from a central dome of the bearing element. On their end remote from the central dome, the bearing projections each preferably have a free end.
- a development of the invention provides that the first radial bearing and the second radial bearing are arranged for mounting of the respective ring gear on the first bearing projection or the second bearing projection.
- the two radial bearings ie the first radial bearing and the second radial bearing, are preferably arranged on the first bearing projection, if they serve for mounting the first ring gear and are arranged on the second bearing projection, if they are provided for mounting the second ring gear.
- the arrangement of the radial bearings on the bearing projection is to be understood that they sit with their inner rings on the respective bearing projection. This means that their inner rings completely surround the bearing projection in the circumferential direction and preferably bear against it in the circumferential direction at least partially continuously, in particular completely continuously.
- a bearing of the ring gear on the transmission housing is preferably completely over the corresponding Bearing projection provided so that the ring gear is mounted only indirectly, namely on the respective bearing projection on the transmission housing.
- the first radial bearing and the second radial bearing bear against an inner bearing surface of the respective ring gear.
- the inner bearing surface is formed by a portion of the inner peripheral surface of the ring gear.
- the ring gear has in this respect a recess which is formed coaxially to its axis of rotation or the axis of rotation of the corresponding output shaft. Both radial bearings now engage in this recess.
- the respective bearing projection protrudes into the corresponding ring gear in the axial direction.
- the bearing projection engages through an end face of the ring gear, in particular an end face of the ring gear facing the bearing element.
- the first bearing projection and the second bearing projection emanate from a central domain of the bearing element.
- the central dome is in this respect between the two bearing projections, which emanate from opposite sides of the central dome of him.
- the central dome is arranged approximately centrally in the gear housing, preferably centrally with respect to the axes of rotation of the input shafts.
- the axes of rotation of the input shafts preferably extend at least through the bearing element, but in particular through the central dome.
- a further embodiment of the invention provides that the second radial bearing is fixed by means of a fastening means in the direction away from the central Dome direction.
- the second radial bearing is fixed in the axial outward direction by means of the fastening means.
- a fastening means for example, a snap ring or the like is used.
- the second radial bearing is preferably arranged between the attachment means and the second ring gear or an axial bearing projection of the ring gear or the first output shaft.
- the second radial bearing preferably rests permanently on the fastening means on the one hand and permanently on the axial bearing projection on the other hand.
- the Axiallagervorsprung extends in the radial direction inwards and serves as a stop for the second radial bearing, in particular for the outer ring of the second radial bearing.
- the bearing element in particular the central dome, is attached to the transmission housing, wherein the first radial bearing and the second radial bearing are connected only via the bearing element with the transmission housing.
- the bearing element is arranged in the gearbox housing and thereby secured thereto.
- the bearing element is at least partially applied to the transmission housing.
- the bearing element is fastened by means of at least one screw to the transmission housing.
- the gear housing is designed in several parts and has in this respect a first housing shell and a second housing shell.
- the two housing shells are formed separately from each other and are preferably in a contact plane to each other, which is in the axial plane or parallel to this.
- the bearing element is fixed to the first housing shell and to the second housing shell, in particular on opposite sides of the contact plane or in each case by means of at least one screw whose longitudinal central axis is angled relative to the contact plane and / or perpendicular to it. It can also be provided that the bearing element on both sides of an imaginary plane, the vertical is arranged right on the contact plane and receives an intersection of the axes of rotation of the output shafts with the axes of rotation of the input shafts in it, respectively attached to the first housing shell and / or the second housing shell.
- the radial bearings arranged on the first bearing projection or the second bearing projection are now connected exclusively to the transmission housing via the bearing element. This in turn means that the output shaft, which is supported by means of the radial bearings, is also connected to the transmission housing exclusively via the radial bearings and finally exclusively via the bearing element.
- a further embodiment of the invention provides that the axes of rotation of the first output shaft and the second output shaft coincide with a common axis of rotation of the output shafts.
- the two output shafts have so far on the common axis of rotation.
- the axes of rotation of the output shafts intersect the axes of rotation of the drive shafts only at a single point and not at several spaced apart points. It follows preferably that the axes of rotation of the two input shafts and the axes of rotation of the two output shafts lie in the axial plane. This has already been pointed out above.
- the first bearing projection and / or the second bearing projection has a first region having a first diameter and a second region having a second diameter different from the first diameter, wherein the first radial bearing is arranged on the first region and the second radial bearing in the second region on the respective bearing projection.
- the first diameter is larger than the second diameter, which of course also um- can be swept.
- the first region preferably directly adjoins the central dome, in any case it is arranged on the side of the second region facing the central dome.
- the two areas, ie the first area and the second area preferably adjoin one another directly in the axial direction with respect to the axis of rotation of the output shaft mounted on the respective bearing projection.
- the inner ring of the first radial bearing has a different diameter than the inner ring of the second radial bearing, in particular a larger diameter.
- the radial bearings are the same size in the radial direction, so that analogous to the inner rings of the outer ring of the first radial bearing has a larger diameter than the outer ring of the second Radiali s campers.
- the difference between the diameters of the outer rings and the diameters of the inner rings for the two radial bearings is identical.
- the radial bearings can be chosen such that the diameter difference between the inner rings is different from the diameter difference between the outer rings.
- the inner rings are designed with different diameters, while the outer rings have the same diameter or vice versa.
- Figure 1 is a schematic side view of a transaxle for a
- FIG. 2 is a schematic sectional view through a transmission housing and a bearing element arranged in the transmission housing,
- Figure 3 is a schematic representation of the transaxle in a first
- Figure 4 is a schematic representation of a second embodiment of the axle
- Figure 5 shows a first variant of a third embodiment of the axle in a schematic representation
- Figure 6 is a schematic representation of a second variant of the third
- Embodiment of the axle transmission Embodiment of the axle transmission.
- FIG. 1 shows a schematic side view of a transaxle 1 for a motor vehicle.
- This has a first input shaft 2, of which a connection flange 3 is shown here.
- a second input shaft 4 Coaxially to the first input shaft 2, a second input shaft 4, not visible here, is arranged.
- the first input shaft 2 is designed as a hollow shaft and the second input shaft 4 is arranged and / or supported in the first input shaft 2.
- the second input shaft 4 has a connection flange 5, which is preferably arranged in the connection flange 3 of the first input shaft 2.
- the first input shaft 2 is permanently coupled by means of a first Tellerrad- gear 6 with a first output shaft 7.
- the first output shaft 7 has a connection flange 8, which can be seen here.
- the second input shaft 4 is permanently coupled by means of a second crown gear 9 to a second output shaft 10 (not visible here) which has a connection flange 11.
- the first crown gear 6 consists of a rigid and permanently coupled to the first input shaft 2 ring gear 12 and meshing with the ring gear 12, permanently and rigidly coupled to the first output shaft 7 ring gear 13.
- the second ring gear 9 a rigid and permanent with the second input shaft 4 coupled ring gear 14 and a meshing with the ring gear 14 and rigidly and permanently coupled to the second output shaft 10 ring gear 15 on.
- the crown gear 6 and 9 and correspondingly the ring gears 12, 13, 14 and 15 are arranged in a gear housing 16 of the transaxle 1, in particular completely. In other words, the transmission housing 16 preferably completely encloses the crown gears 6 and 9.
- first input shaft 2 and the second input shaft 4 are arranged coaxially with one another, the second input shaft 4 being present in the first input shaft 2.
- the input shaft 2 and 4 thus have coincident axes of rotation 17 and 18.
- the first output shaft 7 and the second output shaft 10 now extend starting from the respective crown gear 6 and 9 in opposite directions.
- the first output shaft 7 thus extends out of the plane of the drawing, while the second output shaft 10 extends into the plane of the drawing.
- a rotation axis 19 of the first output shaft 7 or each connecting flange 8 is slightly inclined in the vertical direction and intersects the axes of rotation 17 and 18.
- the input shafts 2 and 4 and their axes of rotation 17 and 18 lie in an axial plane 21, which is basically arranged horizontally.
- an imaginary plane is lowered. right, which seen in section, in particular in cross section with respect to the axes of rotation 17 and 18, as a plane of symmetry for the axes of rotation 19 and 20 of the output shafts 7 and 10 is present.
- the axes of rotation 19 and 20 are so far arranged and aligned symmetrically to this imaginary plane, which can be referred to as a vertical plane due to the horizontal arrangement of the axial plane 21.
- the axes of rotation 19 and 20 intersect both the plane of symmetry and the plane of the axis at the same angle.
- the axes of rotation 19 and 20 intersect the axial plane 21. It can also be provided that the axes of rotation 19 and 20 lie completely in the axial plane 21.
- the gear housing 16 is configured in several parts and in this case has a first housing shell 22 and a second housing shell 23, which are formed separately from each other and in a contact plane 24 abut each other, in the axial plane 21 or parallel to this lies.
- the first housing shell 22 and the second housing shell 23 are screwed together by means of at least one screw 25, in the embodiment shown here by means of a plurality of screws 25.
- At least one of the screws 25, but preferably all of the screws 25, now has a longitudinal central axis 26, which is angled with respect to the contact plane 24, so this intersects at a certain angle.
- the screw 25 or its longitudinal central axis 26 are arranged parallel to the contact plane 24 or the longitudinal center axis 26 is located in the contact plane 24. Rather, it is particularly preferred that the longitudinal center axis 26 is perpendicular to the contact plane 24. In addition, it is preferably provided that at least one of the screws 25 is penetrated by the contact plane 24, that is, cut by the contact plane 24.
- first housing shell 22 On the first housing shell 22 is located in the contact plane 24 planar first contact surface 27 and on the second housing shell 23 is a plane lying in the contact plane 24 second contact surface 28 before.
- the two contact surfaces 27 and 28 lie after the assembly of the housing shells 22 and 23 surface, in particular over the entire surface, to each other. Under the full-surface arrangement is to be understood that the entire first contact surface 27 rests against the entire second contact surface 28. Each of the contact surfaces 27 and 28 thus covers the respective other contact surface 28 or 27 completely.
- the screw 25 now passes through both the first abutment surface 27 and the second abutment surface 28. In this respect, it engages in both the first housing surface 27 and the second abutment surface 28. shell 22 and in the second housing shell 23 to their attachment to each other.
- the first contact surface 27 extends in the direction of the axes of rotation 17 and 18 from one end 29 of the transmission housing 16 to its other end 30.
- both the first contact surface 27 and the second contact surface 28 extend on the one hand to the end 29 and on the other hand up to the end 30. Between the ends 29 and 30 can the contact surfaces 27 and 28, however, be interrupted.
- the first output shaft 7 passes through the first outlet recess 31 or is arranged in this, while the second output shaft 10 passes through the second outlet recess 32 or is arranged in this.
- the outlet recesses 31 and 32 are each formed in equal parts in the housing shell 22 and the second housing shell 23.
- at least each of the exit recesses 31 and 32 is at least partially in the first housing shell 22 and at least partially in the second housing shell 23 before.
- the contact surfaces 27 and 28 have so far in each case two partial surfaces, which are seen in the axial direction with respect to the axes of rotation 17 and 18 on opposite sides of the outlet recesses 31 and 32.
- FIG. 2 shows a schematic partial sectional view of a portion of the axle 1.
- the input shafts 2 and 4 and the output output shafts 7 and 10 are not shown. This also applies to the crown gear 6 and 9. Basically, however, reference is made to the above statements.
- the axis of rotation 19 intersects the axes of rotation 17 and 18 at an intersection point 33.
- a bearing element 35 is arranged in the transmission housing 16 in a preferred embodiment of the axle 1.
- This has a first bearing projection 36 and a second bearing projection 37 opposite this, not visible here.
- the first bearing projection 36 protrudes in the direction of the first outlet opening 31, in particular it projects into this or even reaches through it in the direction of the axis of rotation 19.
- the second bearing projection 37 protrudes in the direction of the second outlet recess 32. He can also protrude into this or she even pass through in the direction of the axis of rotation 20.
- the bearing element 35 is now fastened on the one hand to the first housing shell 22 and on the other hand to the second housing shell 23.
- the fastening takes place in each case by means of at least one screw 38, preferably in each case by means of a plurality of screws 38.
- This can be seen here only for the attachment of the bearing element 35 to the second housing shell 23.
- the corresponding embodiments are transferable to the attachment of the bearing element 35 to the first housing shell 22.
- the screw 38 or the screws 38 each have a Have longitudinal central axis 39.
- the screw 38 or its longitudinal central axis 39 is now angled with respect to the contact plane 24 (not shown here). In particular, it is perpendicular to the contact plane 24. This means that the longitudinal center axis 39 of the screw 38 is preferably aligned parallel to the longitudinal central axis 26 of the screw 25.
- the screw 38 engages in a central dome 40 of the bearing element 35 a. From the central dome 40 go on opposite sides of the plane of symmetry, the bearing projections 36 and 37 from. Furthermore, in the central dome 40, in particular between the bearing projections 36 and 37, a passage recess 41 for receiving the second input shaft 4 may be formed. In this respect, the second input shaft 4 preferably passes completely through the bearing element 35, in particular its passage recess 41 in the axial direction with respect to the axes of rotation 17 and 18.
- the crown wheel gears 6 and 9 are preferably configured such that the ring gears 12 and 14 connected to the input shafts 2 and 4 are present on opposite sides of the bearing element 35, ie on opposite sides of a plane perpendicular to the axes of rotation 17 and 18.
- the ring gear 12 lies completely on one side of this plane and the ring gear 14 completely on the opposite side of the plane.
- the bearing element 35 is preferably configured in one piece and / or of the same material. For example, it consists of the same material as the housing shells 22 and 23. The use of the bearing element 35 allows a particularly compact design of the transaxle 1, in particular in the vertical direction.
- each of the Tellerrä- 13 and 15 and each of the output shafts 7 and 10 is mounted in each case by means of a bearing assembly 42 in the transmission housing 16.
- the bearing assembly 42 for the ring gears 13 and 15 and the corresponding output shafts 7 and 10 are designed analogously, but in particular mirror images. Subsequently, the bearing assembly 42 for the ring gear 13 and the first output shaft 7 are discussed in more detail. However, the embodiments are always transferable to the bearing assembly 42 for the ring gear 15 and the second output shaft 10.
- the bearing assembly 42 has a first radial bearing 43 and a second radial bearing 44. These are arranged in O arrangement to each other. Alternatively, they can also be designed as a fixed bearing and floating bearing. In the latter case forms one of the radial bearings 43 and 44, the fixed bearing and the other of the radial bearings 43 and 44, the floating bearing. Below, however, will be discussed in more detail on the O-arrangement shown here. However, the embodiments are always transferable to the design of the radial bearings 43 and 44 as a fixed bearing and floating bearing.
- the radial bearings 43 and 44 are preferably configured as rolling bearings, in particular as ball bearings.
- the radial bearings 43 and 44 are both arranged on the first bearing projection 36. This means that they rest with their inner rings 45 and 46 on the first bearing projection 36.
- Outer rings 47 and 48 of the radial bearings 43 and 44 are arranged in the ring gear 13 and / or the first output shaft 7. Accordingly, the outer rings 47 and 48 bear against an inner bearing surface 49 of the ring gear 13 or the first output shaft 7. It is envisaged that the first radial bearing 43 in axial direction relative to the axis of rotation 19 on the central axis 40 of the bearing element 35 is supported.
- the first radial bearing 43 in the axial direction with respect to the axis of rotation 19 between the central gear 40 and the ring gear 13 and a Axiaiiagervorsprung 50 of the ring gear 13 is arranged.
- the radial bearing 43 rests permanently against the central dome 40 and permanently against the axial bearing projection 50.
- the second radial bearing 44 is preferably fixed by means of a fastening means 51 in the axial direction outwards, ie in the direction away from the central Dome 40 direction.
- a fastening means 51 for example, a snap ring or the like is used.
- the fastening means 51 is releasable again.
- the radial bearing 44 is preferably arranged between the fastening means 51 and the ring gear 13 or a Axiaiiagervorsprung 52 of the ring gear 13 and the first output shaft 7.
- the second radial bearing 44 is on the one hand permanently to the attachment means 51 and on the other hand permanently on the Axiaiiagervorsprung 52.
- the thrust bearing projections 50 and 52 may be different from each other and in particular spaced apart in the axial direction.
- the axial bearing projections 50 and 52 can also be configured as a common Axiaiiagervorsprung, wherein the first radial bearing 43 is present on one side and the second radial bearing 44 on the axially opposite side of this common Axiallagervorsprungs.
- the bearing arrangement 42 that is to say both the first radial bearing 43 and the second radial bearing 44, is fastened to the transmission housing 16 only via the bearing element 35.
- the radial bearings 43 and 44 thus act exclusively on the bearing element 35 on the transmission housing 16.
- the first bearing projection 36 has a first region 53 and a second region 54, which differ in terms of their diameter.
- the first bearing projection 36 has a first diameter in the first region 53 and a second diameter in the second region 54, wherein the first diameter is greater than the second diameter.
- the first region 53 preferably directly adjoins the central dome 40, in any case it is arranged on the side of the second region 54 facing the central dome 40.
- the two regions 53 and 54 preferably adjoin one another directly in the axial direction with respect to the axis of rotation 19.
- the first radial bearing 43 is now seated in the first region 53 and the second radial bearing 44 in the second region 54 on the first bearing projection 36.
- the inner ring 45 has a larger diameter than the inner ring 46.
- the radial bearings 43 and 44 in the radial direction the same size, so that analogous to the inner rings 45 and 46 of the outer ring 47 has a larger diameter than the outer ring 48.
- radial bearings 43 and 44 are chosen such that the diameter difference between the inner rings 45 and 46 is different from the diameter difference of the outer rings 47 and 48.
- the inner rings 45 and 46 are designed with different diameters, while the outer rings 47 and 48 have the same diameter.
- FIG. 4 shows a second embodiment of the transaxle 1, again in a sectional view.
- the radial bearings 43 and 44 of the bearing assembly 42 are now arranged in tandem to each other.
- An alternative would be an arrangement of the radial bearings 43 and 44 in an X arrangement or again - as already explained above - an embodiment of the radial bearings 43 and 44 as a fixed bearing and movable bearing possible.
- the tandem arrangement will be discussed in more detail below.
- the versions are transferable to the X arrangement and the configuration as a fixed bearing and release bearing.
- the first radial bearing 43 is arranged analogously to the first embodiment of the transaxle 1. Accordingly, it sits with its inner ring 45 on the first bearing projection 36. In the axial direction, it is preferably supported, on the one hand, on the central dome 40 and, on the other hand, on the axial bearing projection 50. However, there are differences with respect to the second radial bearing 44. This sits with its inner ring 45 on an outer bearing surface 55 of the ring gear 13 and the first output shaft 7. Thus, while the first radial bearing 43 engages in the ring gear 13 or the output shaft 7, surrounds the second radial bearing 44, the ring gear 13 and the output shaft 7. Consequently, the first bearing projection 36 may be shorter and have a uniform diameter.
- the fastening means 51 can be omitted.
- the second radial bearing 44 engages on the one hand on the ring gear 13 and the output shaft 7 and on the other hand directly on the gear housing 16, in particular on both housing shells 22 and 23 at.
- the thrust bearing projection 52 is now formed by an abutment shoulder of the ring gear 13 and the output shaft 7, respectively. This in turn can be represented by means of a change in diameter.
- the transmission housing 16 also has an axial bearing projection 56. This is preferably formed both on the first housing shell 22 and on the second housing shell 23.
- the second radial bearing 44 now lies in the axial direction with respect to the axis of rotation 19 seen between the thrust bearing projection 52 and the thrust bearing projection 56. Particularly preferably, it rests permanently on the one hand on the axial bearing projection 52 and on the other hand permanently on the axial bearing projection 56.
- FIG. 5 shows a first variant of a third embodiment of the axle transmission 1. Shown here is again a schematic cross-sectional view according to the above statements.
- the bearing assembly 42 is executed analogously to the second embodiment described above. However, a bearing assembly 42 according to the first embodiment may be used. Reference is made to the above statements. In the following, only the differences from the first two embodiments will be discussed. These are that the ring gears 13 and 15 and thus the axes of rotation 19 and 20 are not parallel to each other, but rather are angled against each other.
- the axes of rotation 19 and 20 continue to intersect the axes of rotation 17 and 18 in the points of intersection 33 and 34, whereby the points of intersection 33 and 34 can coincide.
- the axes of rotation 19 and 20 each cut both axes of rotation 17 and 18.
- the axes of rotation 19 and 20 may additionally intersect each other or alternatively be skewed to each other, in particular spaced parallel to each other. In a first variant shown here, the axes of rotation 19 and 20 intersect.
- FIG. 6 shows a second variant of the third embodiment. Shown here is a sectional view through the axle, namely a longitudinal sectional view with respect to the rotation axis 17 and 18. The cutting plane is selected such that a viewing direction is present to the first housing shell 22.
- the above statements are expressly incorporated by reference.
- the ring gears 12 and 14 of the crown gear 6 and 9 are arranged on opposite sides of the bearing element 35.
- the second input shaft 4 passes through the bearing element 35, in particular it engages through the passage recess 41.
- a direction of travel of a motor vehicle, to which the axle drive 1 is assigned, is indicated by the arrow 57.
- the axes of rotation 19 and 20 are also offset in the axial direction with respect to the axes of rotation 17 and 18 against each other.
- the crown gear 6 and 9 are designed such that a cone angle is present, which is different from 90 °.
- the cone angle is preferably equal to 90 °. From the displacement of the axes of rotation 19 and 20 in the axial direction against each other, there are two spaced apart points of intersection 33 and 34.
- the axle drive 1 described allows an extremely compact design.
- axle drive 1 thus serves only for the production of the permanent active connections between the first input shaft 2 and the first output shaft 7 on the one hand and the second input shaft 4 and the second output shaft 10 on the other.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
- Gear Transmission (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016218729.5A DE102016218729B4 (de) | 2016-09-28 | 2016-09-28 | Achsgetriebe für ein Kraftfahrzeug |
PCT/EP2017/073684 WO2018060013A1 (de) | 2016-09-28 | 2017-09-19 | Achsgetriebe für ein kraftfahrzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3519225A1 true EP3519225A1 (de) | 2019-08-07 |
Family
ID=59901545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17768808.2A Withdrawn EP3519225A1 (de) | 2016-09-28 | 2017-09-19 | Achsgetriebe für ein kraftfahrzeug |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200032901A1 (de) |
EP (1) | EP3519225A1 (de) |
CN (1) | CN109843628A (de) |
DE (1) | DE102016218729B4 (de) |
WO (1) | WO2018060013A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110249765A (zh) * | 2019-06-06 | 2019-09-20 | 丰疆智能科技研究院(常州)有限公司 | 插秧机和车桥 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1771487A (en) * | 1930-03-17 | 1930-07-29 | Int Motor Co | Driving mechanism |
DE1059299B (de) | 1956-05-26 | 1959-06-11 | Kloeckner Humboldt Deutz Ag | Antrieb fuer Kraftfahrzeuge mit zwei Halbachsen |
DE2937594A1 (de) | 1978-11-14 | 1980-05-29 | Gkn Axles | Uebertragungseinheit |
JPH0725270B2 (ja) * | 1986-02-05 | 1995-03-22 | 富士重工業株式会社 | 車両の後輪トルク配分制御装置 |
DE3710582A1 (de) | 1986-03-31 | 1987-11-12 | Shinwa Sangyo Co | Permanenter vierradantrieb fuer ein kraftfahrzeug |
JPH02296040A (ja) | 1989-05-11 | 1990-12-06 | Shinwa Sangyo Kk | 制限差動装置 |
DE102006038358B4 (de) * | 2006-08-09 | 2009-01-15 | Getrag Driveline Systems Gmbh | Achsantriebseinheit für einen Antriebsstrang |
DE102010012085A1 (de) * | 2010-03-19 | 2011-12-15 | Man Truck & Bus Ag | Antriebsanordnung für Kraftfahrzeuge, insbesondere Nutzfahrzeuge |
US8707816B2 (en) * | 2010-07-29 | 2014-04-29 | Nomis Llc | Right angle drive with center support |
JP5986844B2 (ja) * | 2011-09-02 | 2016-09-06 | Gknドライブラインジャパン株式会社 | 動力伝達装置 |
DE102014013574B4 (de) * | 2014-06-17 | 2018-08-30 | Audi Ag | Getriebeeinrichtung für ein Kraftfahrzeug |
DE102014016077B4 (de) * | 2014-10-29 | 2022-01-05 | Audi Ag | Differenzial mit zuschaltbarem Elektromotor zum Antreiben und für eine Torque-Vectoring-Funktion |
-
2016
- 2016-09-28 DE DE102016218729.5A patent/DE102016218729B4/de not_active Expired - Fee Related
-
2017
- 2017-09-19 EP EP17768808.2A patent/EP3519225A1/de not_active Withdrawn
- 2017-09-19 US US16/337,586 patent/US20200032901A1/en not_active Abandoned
- 2017-09-19 CN CN201780059936.3A patent/CN109843628A/zh active Pending
- 2017-09-19 WO PCT/EP2017/073684 patent/WO2018060013A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
DE102016218729A1 (de) | 2018-03-29 |
US20200032901A1 (en) | 2020-01-30 |
DE102016218729B4 (de) | 2022-02-03 |
CN109843628A (zh) | 2019-06-04 |
WO2018060013A1 (de) | 2018-04-05 |
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