plain bearing

Abstract

The invention relates to a plain bearing (9), comprising: - an inner ring element (13); - an outer ring element (14); - at least one plain bearing element (15) arranged between the inner ring element (13) and the outer ring element (14). The plain bearing element (15) has a plurality of plain bearing pads (20), each plain bearing pad (20) having a bearing surface (26) configured in the form of a spherical cap.

Description

[0001] This application is a divisional application of the invention patent application filed on March 4, 2020, with application number 202080018031.3, international application number PCT / AT2020 / 060064, and entitled "Sliding Bearing". Technical Field

[0002] The present invention relates to a sliding bearing, a pod for a wind power generation device equipped with the sliding bearing, a wind power generation device, and a method for replacing the sliding bearing pad in the sliding bearing. Background Technology

[0003] A bearing element for supporting the rotor hub of a wind power generation device is known from WO 2011 / 127510 A1. Summary of the Invention

[0004] The objective of this invention is to provide an improved sliding bearing.

[0005] According to the present invention, a sliding bearing is provided. The sliding bearing includes:

[0006] -Inner ring element;

[0007] -Outer ring element;

[0008] - At least one sliding bearing element disposed between the inner ring element and the outer ring element.

[0009] The sliding bearing element has multiple sliding bearing pads, each of which has a support surface constructed in the form of a spherical crown.

[0010] The advantages of the sliding bearing according to the invention are that each sliding bearing pad can be easily connected to the inner ring element, thus enabling simple assembly or replacement of each sliding bearing pad. Furthermore, the sliding bearing according to the invention has the surprising advantage that the spherical crown design according to the invention can compensate for the bending of the rotor shaft in the sliding bearing without increasing the surface load on the support surface.

[0011] Furthermore, it is preferable that each sliding bearing pad has a fixed profile opposite to the support surface, and the inner ring element has at least one receiving profile on its radially outer side, which is used to form-lock the sliding bearing pad and the inner ring element. This measure enables simple replacement of the sliding bearing pads while simultaneously achieving a secure fit of the sliding bearing pads in the ready state of the sliding bearing.

[0012] Furthermore, it may be specified that a fixing device is constructed, which is disposed between the sliding bearing pad and the inner ring element, and the fixing device is connected to the fixing profile and the receiving profile.

[0013] The individual sliding bearing pads can be secured to the inner ring element using a fixing device. Furthermore, the fixing device allows for easy installation into or removal from the sliding bearing. In particular, the fixing device enables the sliding bearing pads to be axially pushed between the inner and outer ring elements during installation or removal. This eliminates the need to construct the outer ring element as a separate component.

[0014] Furthermore, it can be specified that the fixing device has a first profile element connected to the fixed profile and a second profile element on the opposite side connected to the receiving profile. With this measure, the fixing device can be connected not only to the sliding bearing pad but also to the inner ring element, thereby securing the sliding bearing pad to the inner ring element by means of the fixing device.

[0015] According to an advantageous embodiment, the fixed profile and the first profile element may be configured as a dovetail connection and / or the receiving profile and the second profile element may be configured as a dovetail connection. Dovetail connections are particularly well-suited for establishing a form-locking connection between the inner ring element and the fixing device, or between the sliding bearing pad and the fixing device.

[0016] According to one possible extension, the fixing device includes a body and at least one first clamping wedge having a wedge-shaped surface that interacts with a first mating wedge-shaped surface constructed in the body and tapering axially. The first clamping wedge is movable relative to the body axially by means of a first positioning device, particularly a threaded element. Such a clamping wedge is unexpectedly well-suited for establishing a connection capable of transmitting large forces and easily releasable.

[0017] Furthermore, the fixing device may suitably include a second clamping wedge having a wedge-shaped surface that interacts with a second mating wedge-shaped surface constructed in the body and tapering gradually in the axial direction. The first and second mating wedge-shaped surfaces are configured to taper in opposite directions. The second clamping wedge is movable in the axial direction by means of a second positioning device, particularly a threaded element. Symmetrical clamping of the sliding bearing pad can be achieved by using the second clamping wedge.

[0018] Furthermore, it can be specified that the first and second positioning devices are constructed on a common positioning rod, with the first positioning device having a right-hand thread and the second positioning device having a left-hand thread. This has the advantage that the two clamping wedges can be opened or closed by rotating the common positioning rod. For this function, it is only necessary to construct threads in opposite directions on the first and second positioning devices. However, for everyday use, it is meaningful in the described configuration that the first positioning device has a right-hand thread, so the clamping can be closed by rotating clockwise and opened by rotating counterclockwise.

[0019] Furthermore, it can be specified that the first clamping wedge and / or the second clamping wedge are configured such that they extend into both the fixed profile and the receiving profile. This has the advantage that, by moving the first or second clamping wedge, the fixing device can be clamped not only in the fixed profile but also in the receiving profile. Therefore, the sliding bearing pad can be securely clamped onto the inner ring element with only a single actuation movement.

[0020] According to one particular embodiment, an axial stop for the sliding bearing pad may be constructed on the inner ring element and in the receiving contour region. This has the advantage that the sliding bearing pad can be precisely positioned in the axial direction.

[0021] According to an advantageous extension, a fastening element is provided by which the sliding bearing pad is pressed against the axial stop in the axial direction. This has the advantage that the sliding bearing pad can be fixed or correctly positioned in the axial direction to enable the function of the sliding bearing.

[0022] A spherical crown is part of the surface of a sphere. The supporting surface preferably has the basic shape of an ideal spherical crown. Correspondingly, the mating surface is also constructed in the form of an ideal spherical crown. The radii of these two spherical crowns are chosen accordingly so that the supporting surface rests on the mating surface as much as possible across its entire surface. In special applications, it may be specified that the entire supporting surface does not have the shape of an ideal spherical crown, but instead forms, for example, an oil supply wedge, which may be necessary in hydrodynamic bearings. Therefore, it is possible that the supporting surface, especially when viewed in the circumferential direction, deviates from the shape of an ideal spherical crown. Furthermore, it is conceivable that the surface of the supporting surface deviates from an ideal spherical crown due to manufacturing tolerances.

[0023] According to the present invention, a pod for a wind power generation device is provided, the pod comprising:

[0024] - pod hull;

[0025] - Rotor hub;

[0026] - Rotor bearings used to support the rotor hub on the pod housing.

[0027] The rotor bearing includes a sliding bearing according to the present invention.

[0028] In particular, in the pod according to the invention, the sliding bearing according to the invention enables simple maintenance of the sliding bearing.

[0029] The present invention also provides a wind power generation device having the above-described pod.

[0030] According to the present invention, a method for replacing the sliding bearing pad in the above-mentioned sliding bearing is provided. The method includes the following steps:

[0031] - Loosen one of the fixing devices by axially moving the contour element;

[0032] - Pull the relevant sliding bearing pad fixing device axially out from the gap between the inner ring element and the sliding bearing pad;

[0033] - The sliding bearing pad is removed by moving it radially inward and then pulling it axially out of the inner ring element;

[0034] - Insert a new sliding bearing pad by axially pushing it in and then radially moving it outward;

[0035] - The fixing device for the relevant sliding bearing pad is axially pushed into the gap between the inner ring element and the sliding bearing pad, and the sliding bearing pad is connected to the inner ring element by means of the fixing device;

[0036] - The sliding bearing pad is fixed by axially moving the profile element. Attached Figure Description

[0037] To better understand this invention, the invention is described in detail with reference to the following accompanying drawings. The drawings are as follows:

[0038] Figure 1 A schematic diagram of a wind power generation device is shown;

[0039] Figure 2 A perspective view showing one embodiment of a sliding bearing;

[0040] Figure 3 A perspective cross-sectional view of the sliding bearing is shown;

[0041] Figure 4 A first perspective view showing an embodiment of a sliding bearing pad;

[0042] Figure 5 A second perspective view showing this embodiment of the sliding bearing pad;

[0043] Figure 6 A perspective view showing one embodiment of the inner ring element;

[0044] Figure 7 A perspective view of the inner ring element, on which a sliding bearing pad is disposed, is shown. Detailed Implementation

[0045] First, it should be noted that in different described embodiments, the same components use the same reference numerals or the same component names, wherein the disclosure contained throughout the specification can be transferred to the components having the same reference numerals or the same component names. Similarly, the positional descriptions selected in the description, such as above, below, side, etc., relate to the direct description and the illustrated drawings, and these positional descriptions are transferred to the new position in meaning when the position changes.

[0046] Figure 1 A schematic diagram illustrates a first embodiment of a wind power generation device 1 for generating electricity from wind energy. The wind power generation device 1 includes a pod 2, which is rotatably housed on a tower 3. The pod 2 includes a pod housing 4, which forms the main structure of the pod 2. Electrical components, such as the generator of the wind power generation device 1, are housed within the pod housing 4 of the pod 2.

[0047] Furthermore, a rotor 5 is provided, which has a rotor hub 6 on which rotor blades 7 are disposed. The rotor hub 6 is considered part of the pod 2. The rotor hub 6 is rotatably housed on the pod housing 4 by means of a rotor bearing 8. In particular, it is specified that a sliding bearing 9 according to the invention, and described in more detail therein, is used as the rotor bearing 8.

[0048] The rotor bearing 8, which supports the rotor hub 6 on the pod housing 4 of the pod 2, is configured to absorb radial force 10 and axial force 11. Axial force 11 is caused by wind. Radial force 10 is caused by the weight of the rotor 5 and acts on the center of gravity of the rotor 5. Since the center of gravity of the rotor 5 is located outside the rotor bearing 8, a tilting moment 12 is generated in the rotor bearing 8 by the radial force 10. The tilting moment 12 can also be caused by uneven loads on the rotor blades 7. This tilting moment 12 can be absorbed by a second sliding bearing spaced apart from the sliding bearing 9 according to the invention.

[0049] The rotor bearing 8 according to the invention may, for example, have a diameter between 0.5 m and 5 m. Of course, it is also conceivable that the rotor bearing 8 may be smaller or larger.

[0050] Figure 2 A first embodiment of a sliding bearing 9 installed in pod 2 is shown. The sliding bearing 9 is... Figure 2 It is shown in perspective. Of course, Figure 2 The sliding bearing 9 shown can also be used in all other industrial applications besides wind power generation equipment.

[0051] from Figure 2 As can be seen from the description, the sliding bearing 9 is specified to have an inner ring element 13 and an outer ring element 14. A sliding bearing element 15 is provided between the inner ring element 13 and the outer ring element 14, which is used for the rotational sliding support of the inner ring element 13 relative to the outer ring element 14.

[0052] exist Figure 2 In the illustrated embodiment, an inner circumferential surface 16 is constructed on the inner ring element 13. This inner circumferential surface has a cylindrical shape and is used to accommodate the rotor shaft 17 or other shafts. The rotor shaft 17 is... Figure 2 The diagram is schematically shown. It can also be specified that the outer ring element 14 is connected to the pod housing 4 via a bearing housing 18. Figure 2 In the illustrated embodiment, the outer ring element 14 is therefore rigidly connected to the pod housing 4, and the inner ring element 13 is rotatable relative to the outer ring element 14 about the rotor axis 19 by means of a sliding bearing element 15. Since the rotor shaft 17, which is connected to the rotor hub 6 and therefore to the rotor 5, is housed in the inner ring element 13, the rotor shaft 17 is rotatably housed in the pod housing 4 by means of a sliding bearing 9.

[0053] exist Figure 3 The sliding bearing 9 is shown in a perspective cross-sectional view. (As seen from...) Figure 3 As can be seen, the sliding bearing element 15 includes multiple individual sliding bearing pads 20, which are distributed circumferentially between the inner ring element 13 and the outer ring element 14.

[0054] Each sliding bearing pad 20 is connected to the inner ring element 13 by means of a fixing device 21. Specifically, the fixing device 21 is provided between the sliding bearing pad 20 and the inner ring element 13. The fixing device 21 itself is provided on the inner ring element 13 and serves as a support for each sliding bearing pad 20.

[0055] The sliding bearing pad 20 has a fixed profile 22, which is connected to the first profile element 23 of the fixing device 21.

[0056] In addition, a receiving profile 24 is constructed in the inner ring element 13, which is connected to the second profile element 25 of the fixing device 21.

[0057] As from Figure 3 It can be clearly seen that the connection between the fixed profile 22 and the first profile element 23 of the fixing device 21 is a dovetail connection. Therefore, the first profile element 23 can be axially pushed into the fixed profile 22.

[0058] Similarly, the second profile element 25, which houses the profile 24 and the fixing device 21, is also constructed as a dovetail connection. Therefore, the second profile element 25 can be axially pushed into the housing profile 24.

[0059] Therefore, with the help of the fixing device 21, the sliding bearing pad 20 can be loosely accommodated on the inner ring element 13.

[0060] exist Figure 4 and 5The individual sliding bearing pads 20 are shown in perspective view. (Combined) Figure 3 , 4 Sections 5 and 6 describe the further construction of the sliding bearing 9, and especially the sliding bearing pad 20.

[0061] from Figure 3 , 4 As can be seen from Figures 5 and 6, it can be specified that the fixing profile 22 or the receiving profile 24 is constructed as a dovetail joint groove. Therefore, the first profile element 23 and the second profile element 25 of the fixing device 21 can be correspondingly constructed as tenons.

[0062] As an alternative, it is also conceivable that the first profile element 23 and the second profile element 25 of the fixing device 21 are constructed as grooves and the fixing profile 22 or receiving profile 24 is constructed as a tenon.

[0063] Therefore, each fixing device 21 can be pushed into or removed from the receiving contour 24 of the inner ring element 13 or the fixing contour 22 of the sliding bearing pad 20 along the axial direction of the rotor axis 19. This allows for easy replacement or simple assembly of each sliding bearing pad 20. Furthermore, the dovetail connection allows for a good connection between each sliding bearing pad 20 and the inner ring element 13 via a form-locking dovetail connection.

[0064] Each sliding bearing pad 20 is thus fixedly connected to the inner ring element 13 in the operating state of the sliding bearing 9 by the described structure and therefore rotates with the inner ring element relative to the outer ring element 14. To enable rotational movement between the inner ring element 13 and the outer ring element 14, each sliding bearing pad 20 is provided with a support surface 26 opposite to the fixed profile 22, which abuts against the mating surface 27 of the outer ring element 14 in the ready state of the sliding bearing 9. The mating surface 27 is located on the inner side 28 of the outer ring element 14. The support surface 26 of the sliding bearing pad 20 and the mating surface 27 of the outer ring element 14 are configured as sliding surfaces, sliding against each other during operation of the sliding bearing 9. Specifically, it can be specified that the mating surface 27 of the outer ring element 14 is configured as a hard, wear-resistant surface, for example, made of hardened steel. The support surface 26 of the sliding bearing pad 20 can be made of a sliding bearing material that is softer than the mating surface 27. It is also conceivable that the support surface 26 has a sliding coating.

[0065] As from Figure 3 As can be clearly seen, the support surface 26 is constructed in the form of a spherical crown. The advantage of constructing the support surface 26, or mating surface 27, in the form of a spherical crown is that the sliding bearing pad 20 can easily rotate about the rotor axis 19. Simultaneously, the sliding bearing pad 20 can be tilted at an angle relative to the longitudinal extension of the rotor axis 19. Therefore, the described spherical crown design can compensate for the bending of the rotor shaft 17 in the sliding bearing 9 without increasing the surface load on the support surface 26.

[0066] In addition, by constructing the support surface 26 or the mating surface 27 in the form of a spherical cap, axial bearing force can be transmitted in addition to radial bearing force.

[0067] Figure 6 A perspective view of the inner ring element 13 is shown. (As combined with...) Figures 3 to 6 It can be seen that each receiving profile 24 is disposed on the outer side 29 of the inner ring element 13. In particular, it is specified that each receiving profile 24 is evenly distributed on the inner ring element 13 circumferentially. Therefore, each receiving profile 24 is used to receive a sliding bearing pad 20.

[0068] As from Figure 6 It can be clearly seen that an axial stop 30 is constructed on the outer side 29 of the inner ring element 13, which is used to position the sliding bearing pad 20 along the axial direction 31. (As shown from...) Figure 6 It can be seen that the axial stop 30 can be constructed as a shoulder.

[0069] Furthermore, it can be specified that one end face 32 of the sliding bearing pad 20 rests against the axial stop 30 in the installed state of the sliding bearing pad 20. Thus, the sliding bearing pad 20 can be axially positioned.

[0070] In addition, such as in Figure 3 As can be clearly seen, it is specified that the sliding bearing pad 20 is pressed against the axial stop in the axial direction 31 by means of a fastening element 33, such as a screw, especially an expansion screw. The fastening element 33 can be screwed into a threaded hole 34 constructed in the axial stop 30.

[0071] Figure 7 A perspective view of the inner ring element 13 together with the sliding bearing pads 20 disposed thereon is shown. To better illustrate the function of the connection between the various sliding bearing pads 20 and the inner ring element 13, one of the sliding bearing pads 20 is pushed to one side.

[0072] As from Figure 7 As can be seen, the fixing device 21 is specified to fix the sliding bearing pad 20 in the inner ring element 13. The fixing device 21 can function between or be disposed between the fixing profile 22 of the sliding bearing pad 20 and the receiving profile 24 of the inner ring element 13.

[0073] As from Figure 7It can also be seen that the fixing device 21 may be specified to have at least one first clamping wedge 36, which has a wedge-shaped surface 37. A mating wedge-shaped surface 38 is constructed in the body 35 of the fixing device 21, which tapers gradually along the axial direction 31 and interacts with the wedge-shaped surface 37. Furthermore, a first positioning device 39 is provided, by which the first clamping wedge 36 can be moved along the axial direction 31. The first clamping wedge 36 can extend into the first profile element 23 and the second profile element 25. In particular, the dovetail tenon of the first profile element 23 can be formed together with the first clamping wedge 36 from the body 35. Similarly, the dovetail tenon of the second profile element 25 can be formed together with the first clamping wedge 36 from the body 35.

[0074] By moving the first clamping wedge 36 relative to the body 35 along the axial direction 31, the dovetail of the first contour element 23 or the dovetail of the second contour element 25 can be enlarged or reduced. Thus, the first contour element 23 can be clamped in the fixed contour 22 or the second contour element 25 can be clamped in the receiving contour 24.

[0075] Similarly, the fixing device 21 may be specified to have a second clamping wedge 40, which also has a wedge-shaped surface 41. This wedge-shaped surface 41 can interact with a second mating wedge-shaped surface 42 constructed in the body 35 and gradually tapering along the axial direction 31. The first mating wedge-shaped surface 38 and the second mating wedge-shaped surface 42 are constructed to taper in opposite directions. The second clamping wedge 40 can be moved along the axial direction 31 by means of a second positioning device 43. In particular, the first positioning device 39 and the second positioning device 43 may be specified to be constructed on a common positioning rod 44. It may also be specified that the positioning rod 44 has an axial guide device 45 housed in a positioning rod receiving portion 46. The positioning rod receiving portion 46 may be constructed in the body 35. The axial guide device 45 may, for example, be constructed as a cylindrical body.

[0076] Specifically, it can be specified that the first positioning device 39 has a left-hand thread and the second positioning device 43 has a right-hand thread, so that when the positioning rod 44 rotates in the first direction, the two clamping wedges 36, 40 move away from each other, and when the positioning rod 44 rotates in the second rotation direction, the two clamping wedges 36, 40 move towards each other. Therefore, the clamping can be opened or closed by rotating the positioning rod 44. Of course, the left-hand thread and the right-hand thread can also be interchanged.

[0077] As can be seen from the above description, the second clamping wedge 40 thus has a similar function to the first clamping wedge 36 and also forms a dovetail joint of the first profile element 23 or the second profile element 25 together with the body 35.

[0078] Reference Figure 3 and 7 Instructions for assembling sliding bearing 9.

[0079] In the first method step, the outer ring element 14 is fixed in its mounting position, such as in the pod housing 4. Subsequently, a shaft on which the inner ring element 13 is disposed, such as a rotor shaft 17, is pushed axially into the outer ring element 14, but during this process, the sliding bearing pads 20 are not yet disposed on the inner ring element 13.

[0080] Then, the inner ring element 13 is oriented coaxially relative to the outer ring element 14 in both the axial and radial positions.

[0081] Then, the sliding bearing pad 20 can be pushed axially 31 between the inner ring element 13 and the outer ring element 14. Next, the sliding bearing pad 20 is moved radially outward so that the bearing surface 26 of the sliding bearing pad 20 abuts against the mating surface 27. The sliding bearing pad 20 is spaced apart from the inner ring element 13, thereby forming a gap.

[0082] In the subsequent method steps, the fixing device 21 is pushed into the gap between the sliding bearing pad 20 and the inner ring element 14 in the axial direction 31. Here, the first contour element 23 of the fixing device 21 is pushed into the fixed contour 22 of the sliding bearing pad 20 and at the same time the second contour element 25 of the fixing device 21 is pushed into the receiving contour 24 of the inner ring element 13.

[0083] When the fixing device 21 is positioned in the fixing profile 22 or the receiving profile 24, the first clamping wedge 36 and the second clamping wedge 40 in the fixing device 21 are spaced apart from each other, so that the first profile element 23 of the fixing device 21 can be smoothly pushed into the fixing profile 22 of the sliding bearing pad 20 and the second profile element 25 of the fixing device 21 can be smoothly pushed into the receiving profile 24 of the inner ring element 13.

[0084] The sliding bearing pad 20 and the fixing device 21 are pushed onto the inner ring element 13 in the axial direction 31 until they abut against the axial stop 30 and are thus positioned in the axial direction 31. This defines the axial position of the sliding bearing pad 20.

[0085] The fastening element 33 can then be screwed into the threaded hole 34 to secure the sliding bearing pad 20 in its axial position.

[0086] Then, the positioning rod 31 can be rotated in the tightening direction, causing the two clamping wedges 36, 40 to pull together. Through this movement of the two clamping wedges 36, 40 or the wedge-shaped surfaces 37, 41, the first profile element 23 is clamped in the fixed profile 22 and the second profile element 25 is clamped in the receiving profile 24 by means of the clamping wedges 36, 40. Therefore, the sliding bearing pad 20 is fixed to the inner ring element 13 by means of the fixing device 21.

[0087] Optionally, the fastening element 33 can still be tightened again.

[0088] As an alternative, the fixing device 21 can be applied first, followed by the fastening element 33.

[0089] Then, rotate the inner ring element 13 together with the shaft by an angle so that the next sliding bearing pad 20 can be connected to the inner ring element 13 in the manner described above. Repeat the above process until a sliding bearing pad 20 is accommodated in all receiving contours 24 of the inner ring element 13.

[0090] After assembly is completed, the shaft retaining or supporting devices required for assembly can be removed, so that the shaft is supported in the bearing housing 18 by means of the sliding bearing 9 and is thus ready.

[0091] To replace the individual sliding bearing pads 20, without the external support device receiving the shaft load, it can be stipulated that each individual sliding bearing pad 20 is always replaced with a new one, and this process is repeated until all sliding bearing pads 20 have been replaced. At this point, the retaining device 21 can be loosened, and after removing the retaining device 21, the free sliding bearing pad 20 can be pulled out from the inner ring element 13 in the axial direction 31.

[0092] Then, the new sliding bearing pad 20 can be inserted into the position of the old sliding bearing pad 20 according to the above description. Next, the newly inserted sliding bearing pad 20 can be fixed and the inner ring element 13 can then be rotated so that the next sliding bearing pad can be replaced according to the above steps. This process can be repeated until all sliding bearing pads 20 have been replaced.

[0093] The embodiments illustrate possible implementations. It should be noted that the present invention is not limited to the embodiments specifically shown, but may also include different combinations of various embodiments, and those skilled in the art can realize the possible variations based on the teachings of the present invention.

[0094] The scope of protection is determined by the claims. However, the description and drawings should be considered as interpreting the claims. Individual features or combinations of features of the different embodiments shown and described may, in themselves, constitute independent, inventive solutions. The task upon which independent inventive solutions are based can be derived from the description.

[0095] All descriptions of the value ranges in the specification can be understood as including any and all partial ranges. For example, the description 1 to 10 can be understood as including all partial ranges from the lower limit 1 to the upper limit 10. That is, all partial ranges start from the lower limit value of 1 or a value greater than it and end with the upper limit value of 10 or a value less than it, such as 1 to 1.7 or 3.2 to 8.1 or 5.5 to 10.

[0096] Finally, it should be noted that, for better understanding of the structure, parts of the components are not shown to scale and / or enlarged and / or reduced.

[0097] List of reference numerals

[0098] 1 Wind power generation equipment

[0099] 2 pods

[0100] 3 towers

[0101] 4. Pod hull

[0102] 5 rotors

[0103] 6 rotor hubs

[0104] 7 rotor blades

[0105] 8 rotor bearings

[0106] 9 sliding bearings

[0107] 10 Radial force

[0108] 11 Axial Force

[0109] 12 Inclined Moment

[0110] 13 Inner Ring Components

[0111] 14 outer ring components

[0112] 15 Sliding bearing components

[0113] 16 Inner ring element inner circumferential surface

[0114] 17 rotor shafts

[0115] 18 bearing housing

[0116] 19 Rotor shaft

[0117] 20 sliding bearing pad

[0118] 21 Fixing device

[0119] 22 Fixed Profile

[0120] 23 First contour element

[0121] 24 containment outline

[0122] 25 Second contour element

[0123] 26 support surfaces

[0124] 27 mating surfaces

[0125] 28 inner side

[0126] 29 outer side

[0127] 30 Axial Stop

[0128] 31 Axial direction

[0129] 32 end face of sliding bearing pad

[0130] 33 Fastening Components

[0131] 34 threaded hole

[0132] 35 main bodies

[0133] 36 First clamping wedge

[0134] 37 The wedge-shaped surface of the first clamping wedge

[0135] 38 First mating wedge surface

[0136] 39 First Positioning Device

[0137] 40 Second clamping wedge

[0138] 41. Wedge-shaped surface of the second clamping wedge

[0139] 42 Second mating wedge surface

[0140] 43 Second positioning device

[0141] 44 positioning rod

[0142] 45 Axial Guide Device

[0143] 46 Positioning Rod Receiving Section

Claims

1. A nacelle (2) for a wind power generation device (1), the nacelle (2) comprising: - Cabin shell (4); - Rotor hub (6); - A rotor bearing (8) for supporting the rotor hub (6) on the nacelle housing (4), wherein the rotor bearing (8) has a sliding bearing (9) comprising: -Inner ring element (13); -Outer ring element (14); - At least one sliding bearing element (15) disposed between the inner ring element (13) and the outer ring element (14). The sliding bearing element (15) is characterized by having a plurality of sliding bearing pads (20), each sliding bearing pad (20) having a support surface (26) configured as a spherical cap, wherein the mating surface (27) of the outer ring element (14) is configured as a hard, wear-resistant surface, and the support surface (26) of the sliding bearing pad (20) is made of a sliding bearing material that is softer than the mating surface (27), wherein the tilting torque (12) is absorbed by means of a second sliding bearing disposed at a distance from the sliding bearing (9).

2. The cabin (2) according to claim 1, characterized in that, Each sliding bearing pad (20) has a fixed profile (22) opposite to the support surface (26), and the inner ring element (13) has at least one receiving profile (24) on its radially outer side (29) for form-locking connection between the sliding bearing pad (20) and the inner ring element (13).

3. The cabin (2) according to claim 2, characterized in that, The structure includes a fixing device (21) disposed between the sliding bearing pad (20) and the inner ring element (13), and the fixing device (21) is connected to the fixing profile (22) and the receiving profile (24).

4. The cabin (2) according to claim 3, characterized in that, The fixing device (21) has a first profile element (23) connected to the fixing profile (22) and a second profile element (25) connected to the receiving profile (24) on the opposite side.

5. The cabin (2) according to claim 4, characterized in that, The fixed profile (22) and the first profile element (23) are configured as a dovetail connection, and / or the receiving profile (24) and the second profile element (25) are configured as a dovetail connection.

6. The cabin (2) according to any one of claims 3 to 5, characterized in that, The fixing device (21) includes a body (35) and at least one first clamping wedge (36) having a wedge-shaped surface (37) that interacts with a first mating wedge-shaped surface (38) constructed in the body (35) and tapering in the axial direction (31). The first clamping wedge (36) is movable relative to the body (35) in the axial direction (31) by means of a first positioning device (39).

7. The cabin (2) according to claim 6, characterized in that, The fixing device (21) includes a second clamping wedge (40) having a wedge-shaped surface (41) that interacts with a second mating wedge-shaped surface (42) that is constructed in the body (35) and gradually tapers in the axial direction (31). The first mating wedge-shaped surface (38) and the second mating wedge-shaped surface (42) are configured to taper in opposite directions. The second clamping wedge (40) can be moved in the axial direction (31) by means of a second positioning device (43).

8. The cabin (2) according to claim 7, characterized in that, The first positioning device (39) and the second positioning device (43) are constructed on a common positioning rod (44), the first positioning device (39) having a right-hand thread and the second positioning device (43) having a left-hand thread.

9. The cabin (2) according to claim 6, characterized in that, The first clamping wedge (36) is configured such that it extends into the fixed profile (22) and the receiving profile (24).

10. The cabin (2) according to claim 7 or 8, characterized in that, The first clamping wedge (36) and / or the second clamping wedge (40) are configured such that the first clamping wedge and / or the second clamping wedge extend into the fixing profile (22) and the receiving profile (24).

11. The cabin (2) according to any one of claims 2 to 5, characterized in that, An axial stop (30) for a sliding bearing pad (20) is constructed on the inner ring element (13) and in the area of ​​the receiving profile (24).

12. The cabin (2) according to claim 11, characterized in that, A fastening element (33) is provided, by means of which the sliding bearing pad (20) is pressed against the axial stop (30) in the axial direction.

13. The cabin (2) according to claim 6, characterized in that, The first positioning device (39) is a threaded element.

14. The cabin (2) according to claim 7, characterized in that, The second positioning device (43) is a threaded element.

15. A wind power generation device (1) having a nacelle (2), said nacelle (2) comprising: - Cabin shell (4); - Rotor hub (6), on which rotor blades are provided; - Rotor bearing (8) for supporting the rotor hub (6) on the nacelle shell (4). The characteristic is that the cabin (2) is constructed as claimed in any one of claims 1 to 14.

16. A method for replacing the sliding bearing pad (20) in the engine room (2) according to any one of claims 1 to 14, characterized in that The following are the steps: - Loosen one of the fixing devices (21) by axially moving the contour elements (23, 25); - Pull the fixing device (21) of the relevant sliding bearing pad (20) axially out from the gap between the inner ring element (13) and the sliding bearing pad (20); -The sliding bearing pad (20) is removed by moving the sliding bearing pad (20) radially inward and then pulling the sliding bearing pad (20) axially out of the inner ring element (13). - Insert a new sliding bearing pad (20) by axially pushing it in and then radially moving it outward. - The fixing device (21) of the relevant sliding bearing pad (20) is axially pushed into the gap between the inner ring element (13) and the sliding bearing pad (20), and the sliding bearing pad (20) is connected to the inner ring element (13) by means of the fixing device (21); - The sliding bearing pad (20) is fixed by axially moving the profile elements (23, 25).

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