Mounting arrangement for mounting a planetary gear set

Abstract

The present disclosure relates to a mounting arrangement for mounting a planetary gear set (10). A planet pin (13) is designed for mounting on a planet carrier (12). A sliding bearing element (30) has an outer bearing surface (31) for supporting an inner sliding surface of a planet gear (14) on the planet pin (13). An insertion elevation (20) is connected to the sliding bearing element (30) for conjoint rotation, is directed outwards in a radial direction, and has an elevation contour (21) for inserting the sliding bearing element (30) into the planet gear (14) and the planet carrier (12). The insertion elevation (20) is arranged in front of the outer bearing surface (31) of the sliding bearing element (30) in an insertion direction. A head diameter (Y) of the insertion elevation (20) is greater than a diameter (X) of the outer bearing surface (31) and is designed to be inserted into and guided through the inner sliding surface of the planet gear (14).

Description

[0001] ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0002] Mounting arrangement for the assembly of a planetary gear set

[0003] Technical field

[0004] The present invention relates to a mounting arrangement for mounting a planetary gear set, to a planetary gear set with a mounting arrangement, to a drive device with a planetary gear set and to a wind energy device with a drive device.

[0005] State of the art

[0006] A mounting arrangement for a planetary gear set is known. A planetary gear set is specifically designed for a particular application. A planetary gear set used in a wind turbine to transmit rotational energy generated by the turbine has certain characteristics, such as high weight and large dimensions. Mounting a planetary gear set in the wind turbine is difficult due to its characteristics and the fact that it is mounted at a great height and, for example, under the influence of wind.

[0007] Description of the invention

[0008] It is an object of the present invention to provide an improved mounting arrangement for a planetary gear set, which enables the planetary gear set to be mounted in a simple and reliable manner.

[0009] The problem is solved by an assembly arrangement having the features of claim 1. Advantageous further developments are the subject of the dependent claims.

[0010] In a first aspect, an assembly arrangement for mounting a planetary gear set is provided. The assembly arrangement can be intended for a wind energy device. The planetary gear set can be intended for a wind energy device, for example, a wind turbine or a wind wheel, or for a drive device of the wind energy device. The assembly arrangement comprises a planetary bolt (ZF Friedrichshafen AG File 300668, Friedrichshafen, 2024-08-07) and a planet carrier, wherein the planetary bolt is designed for mounting on the planet carrier. The assembly arrangement comprises a sliding bearing element and a planetary gear, wherein the sliding bearing element has an outer bearing surface for supporting an inner sliding surface of the planetary gear on the planetary bolt.The assembly features an insertion recess that is rotationally fixed to the sliding bearing element, extends radially outwards, and has a raised contour for inserting the sliding bearing element into the planet gear and the planet carrier. The insertion recess is positioned in the insertion direction in front of the outer bearing surface of the sliding bearing element. The head diameter of the insertion recess is larger than the diameter of the outer bearing surface and is designed for insertion into and through the inner sliding surface of the planet gear.

[0011] The planetary gear set can be heavy and require a large amount of space. It may need to be installed in an existing wind turbine, which may be positioned on a surface. Installation may require machinery such as a crane or other lifting equipment to assemble the planetary gear set components, such as the planetary pin and the planet gear, at a considerable height above the ground. Disturbances such as wind or rotation of the planetary gear set components relative to each other can complicate the installation. The present installation arrangement enables simple and reliable assembly of the planetary gear set components.

[0012] If two elements are mechanically connected, they are coupled to each other directly or indirectly in such a way that a movement of one element causes a reaction of the other. For example, a mechanical connection can be provided by a positive-locking or friction-locking connection. The mechanical connection can correspond to the meshing of corresponding gear teeth of the two elements. Further elements, such as one or more spur gear stages, can be provided between the elements. A permanently rotationally fixed connection between two elements, on the other hand, is understood to be a connection in which the two elements are rigidly coupled to each other in all intended states of the transmission. The elements can be individual components rigidly connected to each other or even be a single piece.However, a switching element, such as a clutch or brake, can be used to selectively establish or break a rotationally fixed connection between two elements.

[0013] The assembly may include the planetary gear set. The planetary gear set may include the planet carrier, the planet pin, the planet gear, and the plain bearing element. The planetary gear set may further include a sun gear and a ring gear. The planetary gear set may have a number of planet gears, for example, three or more. The planetary gear set may have a number of planet pins corresponding to the number of planet gears. The sun gear may mesh with one of the planet gears. Each of the planet gears may be mounted on one of the planet pins, for example, via the plain bearing element. At least one of the planet gears may mesh with the ring gear. Each of the planet pins may be mountable on the planet carrier. For example, one of the planet pins may be press-fit or insertable into a bore, such as a mounting bore in the planet carrier, or it may be screwed onto the planet carrier.

[0014] The direction in which the planetary bolt is moved relative to the planetary carrier during assembly can form the insertion direction. The insertion direction can coincide with the central axis of the bore in the planetary carrier. In the assembled state, the bolt axis of the planetary bolt can coincide with the central axis of the bore in the planetary carrier. The bolt axis can be aligned with the insertion direction. In the assembled state, the bearing axis of the sliding bearing element can be aligned with the insertion direction.

[0015] The planetary bolt can have a fastening section, for example, a first fastening section. The first fastening section can be located at a front end section of the planetary bolt in the insertion direction. The planetary bolt can have a second fastening section. The second fastening section can be located at a rear end section of the planetary bolt in the insertion direction, which, for example, is positioned on the opposite side to the front end section in the insertion direction. At least one of the first fastening section and the second fastening section can be cylindrical. The diameter of the first fastening section can be smaller than the diameter of the second fastening section.This allows the first mounting section to be advantageously inserted through a mounting hole in the planet carrier, which is designed for the second mounting section. At least one of the diameters of the first mounting section and the second mounting section can be designed as a press-fit diameter.

[0016] The sliding bearing element can be formed in one piece. The sliding bearing element can have one or more sliding bearing shells. The sliding bearing element can be made of a soft material, for example, bronze. The material of the sliding bearing element can be softer than the material of the planet carrier and the planet bolt, which can be made of iron or steel, for example. The sliding bearing element can be non-rotatably connected to the planet bolt, for example, by a metallurgical bond such as weld overlay or shrink-fitting the sliding bearing element to the planet bolt.

[0017] The insertion groove can be designed to align at least one of the planetary bolts and the sliding bearing element relative to at least one of the planet carriers and the planet gear. The insertion groove can extend circumferentially around a groove axis. The groove axis can form a central axis of the insertion groove. The groove axis can form an axis of symmetry for rotational symmetry of the insertion groove. The groove axis can be coincident with at least one of the bolt axis and the bearing axis. The insertion groove can be designed to create a radial distance between a bearing surface of one element and a sliding surface of another element of the assembly during assembly. The insertion groove can be positioned on the outer circumference of one element, for example, the planetary bolt or the sliding bearing element. In this case, the insertion groove can extend radially outwards.The insertion groove can be directed outwards. It can be positioned on the inner circumference of an element, for example, the sliding bearing element. In this case, the insertion groove can be directed radially inwards, or inwards, as per ZF Friedrichshafen AG file 300668, Friedrichshafen, 2024-08-07.

[0018] The raised contour can extend radially inwards or outwards from a base surface, such as the inner or outer circumference of an element like a planetary bolt or sliding bearing element. Within a certain area or axial extent, the raised contour can be enlarged in the insertion direction from the base surface to the head diameter. The raised contour can be defined as a radial distance between the raised contour and the base surface. A head section, which may exhibit the largest raised contour in the radial direction, can constitute the head diameter. The head section can be cylindrical. The head section can be formed by the vertex of a curved raised contour. The raised contour can extend in front of the head section in the insertion direction.The raised contour can be symmetrical with respect to the head section in the insertion direction. The raised contour can be rotationally symmetrical, at least in part, with respect to the raised axis.

[0019] The insertion recess can be designed to align the inner sliding surface of the planet gear with the outer bearing surface of the sliding bearing element. The head diameter of the insertion recess can be smaller than the diameter of the inner sliding surface of the planet gear. Alternatively, the head diameter of the insertion recess can be as large as the diameter of the inner sliding surface of the planet bolt. In this case, for example, the insertion recess can still be inserted into and through the inner sliding surface of the planet gear by cooling the insertion recess or the planet bolt, or by providing elasticity to the insertion recess. Conversely, the head diameter of the insertion recess can be larger than the diameter of the inner sliding surface of the planet bolt. In this case, for example, the insertion recess can still be inserted into and through the inner sliding surface of the planet gear by cooling the insertion recess or the planet bolt, or by providing elasticity to the insertion recess.It must be passable. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07.

[0020] The insertion recess can be formed integrally with the sliding bearing element. The insertion recess can be formed by the sliding bearing element. The insertion recess can be made of a soft material, such as bronze or plastic. The insertion recess can be made of a hard material, such as iron or steel. The insertion recess can be made of the same material as the sliding bearing element. The insertion recess can be made of the same material as the planetary bolt.

[0021] The inner sliding surface of the planetary gear can be designed to slide against the outer bearing surface of the sliding bearing element. At least one of the inner sliding surface and one of the outer bearing surfaces can be cylindrical. The diameter of the inner sliding surface can be larger than the diameter of the outer bearing surface. This can reduce friction losses.

[0022] In one embodiment of the mounting arrangement, the sliding bearing element can be integrally formed with the planetary bolt. The sliding bearing element can be shrink-fitted onto the planetary bolt. The sliding bearing element can be metallurgically bonded to the planetary bolt. The sliding bearing element can be attached to the planetary bolt by weld overlay. The insertion recess can be configured in the insertion direction between the outer bearing surface of the sliding bearing element and the fastening section, for example, the first fastening section, of the planetary bolt.

[0023] In one embodiment of the mounting arrangement, the planetary bolt can have a mounting section, for example the first mounting section, at a front end section in the insertion direction for mounting to the planet carrier. The insertion recess can be arranged in the insertion direction upstream of the mounting section, for example the first mounting section, of the planetary bolt.

[0024] The insertion recess can be located on the front end section. The fastening section can be positioned between the outer bearing surface and the insertion recess in the insertion direction. The recess contour can terminate in a front face of the planetary bolt in the insertion direction. In this case, the recess contour can be designed to be particularly advantageous for inserting the planetary bolt into both the planet carrier and one of the planet gears. For example, the insertion recess can have a very small end diameter at the front end section of the planetary bolt, regardless of the diameter of the first fastening section. For example, the recess contour can be designed as a chamfer.

[0025] In one embodiment of the mounting arrangement, the planetary bolt can have a mounting section for attachment to the planet carrier at a front end section in the insertion direction. The sliding bearing element can have an inner bearing surface for bearing the sliding bearing element on an outer sliding surface of the planetary bolt. The planetary bolt can have an insertion recess, which may be radially oriented outwards and which may have the raised contour for inserting the planetary bolt into the sliding bearing element. The insertion recess can be arranged at the front end section of the planetary bolt.

[0026] The sliding bearing element can be designed for floating mounting on the planetary bolt, for example, on the outer sliding surface of the planetary bolt. The outer sliding surface can be arranged on an outer circumference of the planetary bolt. The outer sliding surface can be positioned in the insertion direction between the first fastening section and the second fastening section of the planetary bolt.

[0027] The insertion lug can be positioned in the insertion direction upstream of the first fastening section. The insertion lug can be positioned downstream of the first fastening section, for example, between the first fastening section and the outer sliding surface. In the assembled state, the insertion lug can be positioned in the insertion direction between the first fastening section and the inner bearing surface of the sliding bearing element.

[0028] The head diameter of the insertion recess can be larger than the diameter of the outer sliding surface of the planetary pin. The head diameter of the insertion recess can be smaller than, equal to, or larger than the diameter of the inner bearing surface of the plain bearing for inserting and guiding the outer sliding surface of the planetary pin into or through the inner bearing surface of the plain bearing, as described in ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07.

[0029] In one embodiment of the assembly, the sliding bearing element can have an inner bearing surface for supporting the sliding bearing element on the outer sliding surface of the planetary bolt. The sliding bearing element can have a second insertion recess, which may be directed radially inwards and which may have the raised contour for inserting the planetary bolt into the sliding bearing element.

[0030] The insertion lift can be arranged behind the inner bearing surface of the sliding bearing element in the insertion direction.

[0031] The sliding bearing element can be designed for floating mounting on the planetary pin, for example, on the outer sliding surface of the planetary pin. The head diameter of the insertion recess can be smaller than the diameter of the inner sliding surface of the sliding bearing element. The head diameter of the insertion recess can be larger, equal to, or smaller than the diameter of the outer sliding surface of the planetary pin for inserting and guiding it through the inner bearing surface of the sliding bearing, as described with reference to insertion into and passage through the inner sliding surface of the planetary gear.

[0032] In one embodiment of the assembly arrangement, the raised contour can be designed as a chamfer. The raised contour designed as a phase can be combined with positioning the insertion ridge in the insertion direction in front of the first fastening section of the planetary bolt. This allows the raised contour to be manufactured easily.

[0033] In one embodiment of the assembly arrangement, the raised contour can have a rectangular, arcuate, semicircular, elliptical, stepped, finger-shaped, or cloud-shaped cross-section in a circumferential direction. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0034] In a stepped cross-section, a raised section can increase in steps from the base to the diameter of the head. The contour of the raised section can have two steps between the base and the diameter of the head. The change in height between these steps can be abrupt. In a finger-shaped cross-section, a raised section can increase in steps from the base to the diameter of the head. Between these steps, the raised section can decrease again, for example, back to the base. The contour of the raised section can have two steps between the base and the diameter of the head. In a cloud-shaped cross-section, the contour of the raised section can be formed by a series of arcs. Each arc can end in a vertex. The vertex can form a step. Thus, the change in height between the steps can be gradual.The elevation contour can have two steps between the base surface and the head diameter.

[0035] In one embodiment of the assembly arrangement, the raised contour can have recesses spaced apart from each other in the circumferential direction. The raised contour can have at least one recess. The recess can be oriented in the insertion direction. The recess can be formed by a tool that moves along the raised contour in the insertion direction.

[0036] The recess can be designed to prevent rotation of the insertion lift or the sliding bearing element and / or the planetary bolt. The recess can be formed by a flat surface. The recess can be designed with a contact surface extending in the radial direction for positioning the insertion lift or the sliding bearing element and / or the planetary bolt in the insertion direction. The raised contour can have two recesses opposite each other in the radial direction. In this case, the two recesses can be arranged circumferentially offset from each other by 180° and, for example, be designed as a double flat.

[0037] The raised contour can have multiple recesses. The recesses can extend segmentally from the raised contour to the base surface (ZF Friedrichshafen AG File 300668, Friedrichshafen, 2024-08-07). The recesses can be evenly spaced from each other along the circumference.

[0038] In a second aspect, a planetary gear set is provided. The planetary gear set has a mounting arrangement according to one of the preceding embodiments. Further features, effects, and advantages for the second aspect can be derived from the first aspect. Furthermore, features, effects, and advantages of the second aspect also represent features, effects, and advantages for the first aspect. The planetary gear set also includes a sun gear and a ring gear. The sun gear is meshed with the planet gear, and the planet gear is meshed with the ring gear. The planet gear is rotatably mounted on the planetary pin via the sliding bearing element. The planetary pin is mounted on the planet carrier.

[0039] In a third aspect, a drive device with a planetary gear set according to the second aspect is provided. Further features, effects, and advantages for the third aspect can be derived from one of the preceding aspects. Furthermore, features, effects, and advantages of the third aspect also represent features, effects, and advantages for one of the preceding aspects. The drive device also includes a drive motor. The drive motor and the planetary gear set are mechanically coupled to each other for the transmission of rotational energy.

[0040] The drive machine can be designed as an electric machine. The electric machine can be an electric motor, for example, an asynchronous machine or a synchronous machine. The electric machine can also function as a generator. Electrical energy can be generated from the rotational energy of the electric machine.

[0041] The sun gear can be mechanically connected to a drive shaft of the drive machine via an intermediate gear. The intermediate gear can be designed as a multi-stage spur gear. The intermediate gear can be configured to increase the rotational speed of the sun gear at the drive shaft of the drive machine. The planet carrier can be designed to absorb the rotational energy. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0042] The planet carrier can, for example, be designed to absorb the rotational energy from a rotor of a wind energy device.

[0043] In a fourth aspect, a wind energy device with a drive device according to the third aspect is provided. Further features, effects, and advantages for the fourth aspect can be derived from one of the preceding aspects. Furthermore, features, effects, and advantages of the fourth aspect also represent features, effects, and advantages for one of the preceding aspects. The wind energy device also includes a rotor assembly. The rotor assembly is designed to convert wind energy into rotational energy. The drive machine is designed as an electric machine for generating electrical energy from the rotational energy.

[0044] The wind energy device can be designed as a wind turbine or windmill. The rotor assembly can include a propeller or rotor and rotor blades. The rotor can be designed to be driven by wind power, for example, to rotate. The rotational energy can be provided by the rotor assembly, for example, by rotating the rotor. The electric machine can include an electric motor, for example, an asynchronous machine or a synchronous machine. The electric machine can be configured for generator operation. The electric machine can function as a generator. The electric machine can be driven by rotational energy. Electrical energy can be generated from the rotational energy of the electric machine.

[0045] Brief description of the characters

[0046] Figure 1a shows a top view of an embodiment of a planetary bolt of a mounting arrangement for a planetary gear set.

[0047] Figure 1b shows a detailed view of the embodiment of the planetary bolt from Figure 1a.

[0048] Figure 2a shows a top view of another embodiment of the planetary bolt. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0049] Figure 2b shows a detailed view of the embodiment of the planetary bolt from Figure 2a.

[0050] Figure 3 shows different embodiments of an insertion lift for the assembly arrangement.

[0051] Figure 4 shows an embodiment of the insertion lift for the assembly arrangement.

[0052] Figure 5 shows an embodiment of the insertion lift for the assembly arrangement.

[0053] Figure 6 shows a top view of a schematic representation of an embodiment of the assembly arrangement.

[0054] Figure 7 shows an embodiment of a drive device with the planetary gear set 10 and the mounting arrangement.

[0055] Figure 8 shows an embodiment of a wind energy device with the drive device.

[0056] Detailed description of embodiments

[0057] Figure 1a shows a top view of an embodiment of a planetary bolt 13 of a mounting arrangement for a planetary gear set 10 shown in Figure 7. The planetary gear set 10 has a planetary bolt 13. The planetary gear set 10 has a planet carrier 12 and a planet gear 14, which are shown in Figure 7. The mounting arrangement has an insertion recess 20 and a sliding bearing element 30.

[0058] The planetary bolt 13 is designed for mounting on the planet carrier 12 via a first fastening section 18 and a second fastening section 19. For this purpose, the first fastening section 18 and the second fastening section 19 are pressed into corresponding bores in the planet carrier 12. During assembly, the planetary bolt 13 is first guided through the bore for the first fastening section 18 of the planet carrier 12 in the insertion direction. Then, the ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0059] The planetary bolt 13 is guided through an inner sliding surface of the planetary gear 14. The planetary bolt 13 is then pressed into the planet carrier 12. The outer bearing surface 31 is designed to support the inner sliding surface of the planetary gear 14.

[0060] The insertion recess 20 is directed radially outwards and has a raised contour 21 shown in Figure 1b, which is designed for inserting the sliding bearing element 30 into the planet gear 14 and the planet carrier 12. The insertion recess 20 is arranged in the insertion direction in front of the outer bearing surface 31 of the sliding bearing element 30. The insertion recess 20 is arranged in the insertion direction behind the first fastening section 18 of the planet bolt 13. The insertion recess 20 has a head diameter Y. The head diameter Y is designed to be larger than the diameter X of the outer bearing surface 31 of the sliding bearing element 30. The head diameter Y is designed for insertion and passage through the inner sliding surface of the planet gear 14. In this case, the head diameter Y is designed to be smaller than the diameter of the inner sliding surface of the planet gear 14.The insertion lift 20 thus forms a centering aid and a protection in the radial direction, preventing unwanted contact between the outer bearing surface 31 and the planet carrier 12 and the planet gear 14 during assembly.

[0061] The insertion recess 20 is rotationally fixed, in this case by a material bond, to the sliding bearing element 30. The insertion recess 20 is radially symmetrical in a circumferential direction about a raised axis that forms a central axis of the insertion recess 20 and the planetary bolt 13. The insertion recess 20 and the sliding bearing element 30 are integrally formed with the planetary bolt 13. The material of the insertion recess 20 and the sliding bearing element 30 is softer than the material of the planetary bolt 13 and the planet carrier 12. In the insertion direction, in which the planetary bolt 13 is moved for assembly onto the planet carrier 12 and in which the central axis of the planetary bolt 13 is aligned, the insertion recess 20 is positioned between the outer bearing surface 31 of the sliding bearing element 30 and the first fastening section 18 of the planetary bolt 13. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0062] Figure 1b shows a detailed view of the embodiment of the planetary bolt 13 from Figure 1a. The insertion ridge 20 has a base surface in the insertion direction in front of the ridge contour 21. Starting from the base surface, the ridge gradually increases in the opposite direction of insertion until it reaches a head section that forms the head diameter Y. In the insertion direction behind the head section, the ridge is reduced somewhat, but not back to the diameter of the base surface. The head section has the largest ridge and is cylindrical. In the insertion direction in front of and behind the head section, the ridge contour 21 is linear and chamfered.

[0063] Figure 2a shows a top view of a further embodiment of the planetary bolt 13. The present embodiment differs from the previous one in that the insertion recess 20 is arranged in the insertion direction in front of the first fastening section 18. The recess contour 21 opens into a front face of the planetary bolt 13 in the insertion direction. The head section opens into the first fastening section 18.

[0064] Figure 2b shows a detailed view of the embodiment of the planetary bolt 13 from Figure 2a. The head diameter Y of the head section and an outer diameter of the first fastening section 18 are of the same size.

[0065] Figure 3 shows various embodiments of the insertion recess 20 for the assembly arrangement. In each of the embodiments shown in Figure 3, the head section forms the head diameter Y, which has the largest recess of the recess contour 21. The different embodiments are described from left to right in Figure 3.

[0066] In one embodiment, the raised contour 21 has a rectangular cross-section in the circumferential direction. In another embodiment, the raised contour 21 has a semicircular cross-section in the circumferential direction. In another embodiment, the raised contour 21 has an elliptical cross-section in the circumferential direction. In another embodiment, the raised contour 21 has a stepped cross-section in the circumferential direction with two steps between the ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0067] The head diameter Y and the base surface are defined. The elevation changes abruptly between the steps. In one embodiment, the elevation contour 21 has a finger-shaped cross-section in the circumferential direction, similar to the stepped cross-section, with the difference that the elevation of the elevation contour 21 is reduced back to the base surface between each pair of steps. In another embodiment, the elevation contour 21 has a cloud-shaped cross-section in the circumferential direction, similar to the stepped cross-section. In the cloud-shaped cross-section, the elevation changes in an arc-like pattern between the steps. The elevation contour 21 is formed by a plurality of consecutive arcs. Each of the arcs terminates at a vertex.

[0068] Figure 4 shows an embodiment of the insertion recess 20 for the assembly arrangement. The present embodiment has all the features of at least one of the preceding embodiments. In the present embodiment, the recess contour 21 has a plurality of recesses 22, which are uniformly spaced apart from one another in the circumferential direction. The recesses 22 extend in the insertion direction. The recesses 22 are each segment-like, extending from the recess contour 21 to the base surface.

[0069] Figure 5 shows an embodiment of the insertion recess 20 for the assembly arrangement. The present embodiment has all the features of at least one of the preceding embodiments. In the present embodiment, the recess contour 21 has a recess 23 formed by a flat surface and a contact surface extending radially. The contact surface opens into the head section. The recess 23 is designed to prevent rotation of the insertion recess 20, the sliding bearing element 30, and the planetary bolt 13, and to position them in the insertion direction.

[0070] Figure 6 shows a top view of a schematic representation of an embodiment of the mounting arrangement. In the present embodiment, the sliding bearing element 30 is not rotationally fixed to the planetary bolt 13. In addition to the outer bearing surface 31, the sliding bearing element 30 has an inner bearing surface 32. The planetary bolt 13 has an outer sliding surface that allows it to slide on the inner bearing surface 32. (ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07)

[0071] The sliding bearing element 30 is configured. The sliding bearing element 30 is configured for floating support of the planet gear 14 on the planet bolt 13.

[0072] The planetary bolt 13 has an insertion recess 20 located between the first fastening section 18 and the outer sliding surface of the planetary bolt 13. The insertion recess 20 of the planetary bolt 13 is directed radially outwards. The head diameter Y of the insertion recess 20 of the planetary bolt 13 is smaller than the diameter of the inner bearing surface 32 of the sliding bearing element 30. The head diameter Y of the insertion recess 20 of the planetary bolt 13 is larger than the diameter of the outer sliding surface of the planetary bolt 13.

[0073] In an alternative embodiment, instead of the insertion recess 20 of the planetary bolt 13, a second insertion recess 20 is provided on the sliding bearing element 30. The second insertion recess 20 is located on an inner circumference of the sliding bearing element 30. The second insertion recess 20 is directed radially inwards or rises radially inwards. The head diameter Y of the second insertion recess 20 is smaller than the diameter of the inner bearing surface 32 of the sliding bearing element 30. The head diameter Y of the second insertion recess 20 is larger than the diameter of the outer sliding surface of the planetary bolt 13. The insertion recess 20 is arranged behind the inner bearing surface 32 of the sliding bearing element 30 in the insertion direction at a rear end section of the sliding bearing element 30.

[0074] Figure 7 shows an embodiment of a drive device with the planetary gear set 10 and the mounting arrangement. In the present embodiment, the planetary gear set 10 has a thrust bearing element 40 and a ring gear 15. The sun gear 11 is engaged with the planet gear 14. The planet gear 14 is engaged with the ring gear 15. The planet gear 14 is mounted and positioned on the planet carrier 12 via the thrust bearing element 40 in an axial direction that is coincident with the insertion direction. The planet carrier 12 is designed to receive rotational energy from a rotor of a wind turbine. The sun gear 11 is configured via an intermediate gear for transmitting the rotational energy to a drive motor (not shown in Figure 7). The intermediate gear is designed as a two-stage spur gear and for increasing the rotational speed.

[0075] Figure 8 shows an embodiment of a wind energy device with the drive unit. The wind energy device is positioned on a surface. The wind energy device has a rotor which is configured to drive the drive unit with the planetary gear set 10. The drive unit is designed as an electric motor and has a generator function. The drive unit generates electrical energy from the rotational energy produced by the rotor from wind power.

[0076] ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07

[0077] Reference mark

[0078] 10 planetary gear set

[0079] 11 Sun wheel

[0080] 12 planetary carriers

[0081] 13 planetary bolts

[0082] 14 planetary gear

[0083] 15 Ring gear

[0084] 18 Fastening section, first fastening section

[0085] 19 Second fastening section

[0086] 20 Importer Survey

[0087] 21 Survey contour

[0088] 22 recess

[0089] 23 recess

[0090] 30 sliding bearing element

[0091] 31 outdoor storage areas

[0092] 32 internal storage area

[0093] 40 axial bearing element

[0094] X Diameter of the outer bearing surface of the sliding bearing element

[0095] Y Head diameter of the elevation

Claims

ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07 Patent claims 1. Assembly arrangement for mounting a planetary gear set (10), the assembly arrangement comprising: a planet bolt (13) and a planet carrier (12), wherein the planet bolt (13) is designed for mounting on the planet carrier (12), a sliding bearing element (30) and a planet gear (14), wherein the sliding bearing element (30) has an outer bearing surface (31) for bearing an inner sliding surface of the planet gear (14) on the planet bolt (13), and an insertion recess (20) which is rotationally fixed to the sliding bearing element (30), is directed radially outwards and has a raised contour (21) for inserting the sliding bearing element (30) into the planet gear (14) and the planet carrier (12), wherein the insertion recess (20) is arranged in an insertion direction in front of the outer bearing surface (31) of the sliding bearing element (30),and a head diameter (Y) of the inserter lift (20) is larger than a diameter (X) of the outer bearing surface (31) and is designed for insertion into and passage through the inner sliding surface of the planet gear (14).

2. Assembly arrangement according to claim 1, characterized in that the sliding bearing element (30) is formed integrally with the planetary bolt (13).

3. Mounting arrangement according to claim 2, characterized in that the planetary bolt (13) has a fastening section (18) for mounting on the planet carrier (12) at a front end section in the insertion direction, and the insertion lift (20) is arranged in the insertion direction in front of the fastening section (18) of the planetary bolt (13).

4. Mounting arrangement according to claim 1, characterized in that the planetary bolt (13) has a fastening section (18) at a front end section in the insertion direction for mounting on the planet carrier (12), ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07 the sliding bearing element (30) has an inner bearing surface (32) for bearing the sliding bearing element (30) on an outer sliding surface of the planetary bolt (13), the planetary bolt (13) has an insertion recess (20) which is directed radially outwards and which has the raised contour (21) for inserting the planetary bolt (13) into the sliding bearing element (30), and the insertion recess (20) is arranged on the front end section of the planetary bolt (13).

5. Assembly arrangement according to claim 1, characterized in that the sliding bearing element (30) has an inner bearing surface (32) for bearing the sliding bearing element (30) on an outer sliding surface of the planet bolt (13), the sliding bearing element (30) has a second insertion recess (20) which is directed radially inwards and which has the raised contour (21) for inserting the planet bolt (13) into the sliding bearing element (30), and the insertion recess (20) is arranged behind the inner bearing surface (32) of the sliding bearing element (30) in the insertion direction.

6. Assembly arrangement according to one of the preceding claims, characterized in that the raised contour (21 ) is designed as a chamfer.

7. Assembly arrangement according to one of claims 1 to 5, characterized in that the raised contour (21 ) has a rectangular, arcuate, semicircular, elliptical, stepped, finger-shaped or cloud-shaped cross-section in a circumferential direction.

8. Assembly arrangement according to one of the preceding claims, characterized in that the raised contour (21) has recesses (22, 23) which are spaced apart from each other in the circumferential direction. ZF Friedrichshafen AG File 300668 Friedrichshafen 2024-08-07 9. Planetary gear set (10) comprising a sun gear (11), a ring gear (15) and a mounting arrangement according to one of claims 1 to 8, wherein the sun gear (11) engages with the planet gear (14) and the planet gear (14) engages with the ring gear (15), the planet gear (14) is rotatably mounted on the planet bolt (13) via the sliding bearing element (30), and the planet bolt (13) is mounted on the planet carrier (12).

10. Drive device comprising a drive machine and a planetary gear set (10) according to claim 8, wherein the drive machine and the planetary gear set (10) are mechanically interconnected for transmitting rotational energy.

11. Wind energy device comprising a rotor assembly and a drive device according to claim 10, wherein the rotor assembly is configured to convert wind energy into rotational energy, and the drive machine is designed as an electric machine for generating electrical energy from the rotational energy.

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