Elastically supported transmission mechanism housing II

Abstract

The invention relates to a device (101, 301, 401) for fixing a housing (103) of a wind power transmission in a pod, comprising means (109, 110) which are fixed relative to the housing, means (105, 107, 403) which are fixed relative to the pod, and at least two spring devices (111, 113, 201, 203); wherein the spring means (111, 113, 201, 203) support the housing-fixed means (109, 110) on the pod-fixed means (105, 107, 403) in opposite directions along the support axis. The spring means (111, 113, 201, 203) are arranged on different sides of a plane extending parallel to the axis of rotation of the input shaft of the wind power transmission.

Description

Technical Field

[0001] The invention relates to an installation according to the preamble of claim 1 and to a wind turbine according to the preamble of claim 12 . Background Art

[0002] Some devices are known from the prior art to elastically fix the housing of the transmission of a wind turbine in the pod of the wind turbine. The housing is supported in the pod by a cylindrical elastic body. The center axis of the elastic body is oriented parallel to the rotation axis of the input shaft of the transmission. Summary of the invention

[0003] The object of the invention is to improve the fastening of a housing of a wind turbine drive in a pod. This object is achieved by an arrangement according to claim 1 and a wind turbine installation according to claim 12. Further developments are contained in the dependent claims and are apparent from the following description.

[0004] The device according to the invention is used to fix the housing of a wind power transmission, i.e. the housing of a transmission which is designed to be used in a wind power installation, in a nacelle of a wind power installation. The wall of the housing encloses a cavity in which the internal parts of the transmission, such as shafts, bearings and gears, are located. The housing can enclose, for example, a rotor shaft or input shaft of the transmission and its bearings.

[0005] The device for accommodating the drive train of a wind power plant is called a nacelle. The nacelle comprises a support structure for fixing the drive train, in particular for fixing the transmission included in the drive train.

[0006] The arrangement according to the invention includes means fixed to the housing, means fixed to the pod and at least two spring devices, namely a first spring device and a second spring device.

[0007] A component fixed relative to the housing refers to a component that is firmly connected to the housing, that is, without the possibility of relative movement. Similarly, a component fixed relative to the pod refers to a component that is firmly connected to the pod.

[0008] The spring device is a device composed of one or more spring elements. For example, an elastomer, that is to say a component composed of an elastomer, or a hydraulic bearing is used as the spring element.

[0009] The first spring device and the second spring device support the device fixed relative to the housing to the device fixed relative to the pod. They thus force-transmittingly and elastically connect the device fixed relative to the housing to the device fixed relative to the pod. For this purpose, the first spring device and the second spring device are preferably engaged with the device fixed relative to the housing and / or the device fixed relative to the pod.

[0010] The spring device supports the device fixed relative to the housing to the device fixed relative to the pod in the opposite direction along the support axis. The first spring device thus supports the device fixed relative to the housing to the device fixed relative to the pod in the first direction. The second spring device supports the device fixed relative to the housing to the device fixed relative to the pod in the second direction. The first direction and the second direction are opposite to each other. If the first spring device is subjected to compression, the second spring device is subjected to tension in the opposite direction. If the second spring device is subjected to compression, the first spring device is subjected to tension in the opposite direction. The support axis preferably extends orthogonally to the rotation axis of the input shaft of the wind power transmission mechanism.

[0011] According to the invention, the spring devices are arranged on different sides of a plane. The plane extends parallel to the rotation axis of the input shaft of the wind turbine drive. The plane can especially contain the rotation axis of the input shaft. The plane is preferably oriented orthogonally to the support axis.

[0012] The direction of the force acting on the spring device depends on the axis of rotation of the input shaft. In particular, the direction of the drive torque supported in the spring device and the direction of the weight of the wind power transmission introduced into the pod via the spring device depend on the direction of the axis of rotation. Due to the orientation of the plane according to the invention and the arrangement of the spring devices depending thereon, one spring device is substantially subjected to compression and the other spring device is substantially subjected to tension. Thus, a better adaptation to the forces to be supported is achieved by the selection and design of the spring device. In particular, the properties of the arrangement can be optimized with regard to vibration loads.

[0013] In a preferred extended embodiment, the first spring device and / or the second spring device are rotationally symmetrical or rotationally symmetrical about the support axis. This means that the first spring device and / or the second spring device have a shape that can be assumed by rotating at least one angle about the support axis. The first spring device and / or the second spring device can be rotationally symmetrical in a narrow sense. In this case, the shape of the first spring device and / or the second spring device can be assumed by rotating at any angle about the support axis.

[0014] The rotational symmetry of the first spring device and / or the second spring device according to the extended design results in a particularly simple structure of the device. This simplifies the above-mentioned design of the spring device.

[0015] The first spring device and the second spring device are preferably designed to be mirror-symmetrical to each other about the above-mentioned plane. The first spring device and the second spring device can thus be interchanged with each other. Therefore, the diversity of components is reduced, which saves costs.

[0016] The first spring device is fixed in the first part of the device fixed relative to the housing. The second spring device is correspondingly fixed in the second part of the device fixed relative to the housing. The mirror-symmetrical extended embodiment results in the first part and the second part of the device fixed relative to the housing also being mirror-symmetrical to each other with respect to the above-mentioned plane.

[0017] In a preferred extended design, the plane intersects with the device fixed to the housing and / or the device fixed to the pod. If the plane intersects with the device fixed to the housing, a facility structure with spring devices arranged on different sides of the device fixed to the housing is obtained. Conversely, when the plane intersects with the device fixed to the pod, a structure with spring devices arranged on different sides of the device fixed to the pod is obtained.

[0018] It is also preferred that a part of the device fixed to the pod is arranged between the first spring device and the second spring device and between the first part and the second part of the device fixed to the housing. The first spring device is arranged between the first part of the device fixed to the housing and the part of the device fixed to the pod or is braced between the first part of the device fixed to the housing and the part of the device fixed to the pod. Similarly, the second spring device is arranged between the second part of the device fixed to the housing and the part of the device fixed to the pod or is braced between the second part of the device fixed to the housing and the part of the device fixed to the pod.

[0019] Alternatively, the facility can be designed to be expanded so that a portion of the device fixed relative to the housing is arranged between the spring devices and between the first and second portions of the device fixed relative to the pod, wherein the first spring device is arranged or braced between the first portion of the device fixed relative to the pod and that portion of the device fixed relative to the housing, and wherein the second spring device is arranged or braced between the second portion of the device fixed relative to the pod and that portion of the device fixed relative to the housing.

[0020] In a preferred embodiment, the device fixed to the pod is at least partially arranged between the spring devices and between the first part and the second part of the device fixed to the housing. Mutually, that is, by exchanging the device fixed to the pod and the device fixed to the housing, an alternative embodiment is obtained, which relates to an arrangement in which at least a part of the device fixed to the housing is arranged between the spring devices and between the first part and the second part of the device fixed to the pod.

[0021] The device fixed relative to the housing is preferably extended with a connecting element. This connecting element connects the first part and the second part of the device fixed relative to the housing to each other. The connecting element therefore extends between the first part and the second part and transitions into the first part or the second part at the corresponding connecting part. The transition part can be designed in one piece in particular. In the case described, the connecting element is connected in one piece with the first part and the second part of the device fixed relative to the housing. The connecting element is designed, for example, as a cylinder. The connecting element can have the shape of a straight cylinder in particular.

[0022] According to an extended design, the device fixed relative to the pod has a recess. This recess is designed as a continuous hole, through which the connecting element extends. The recess surrounds the connecting element accordingly. Since the connecting element connects the first part and the second part of the device fixed relative to the housing to each other, these parts are on different sides of the recess.

[0023] Furthermore, the arrangement is preferably further developed with a third spring device which serves to support the means fixed relative to the housing on the means fixed relative to the pod orthogonally to the support axis.

[0024] According to a further development, the third spring device is at least partially arranged in a recess of the device fixed relative to the pod. The third spring device itself has a recess which is designed as a continuous hole through which the connecting element extends.

[0025] The extended design with a third spring device is advantageous because the third spring device can be designed independently of the first spring device and the second spring device, so that the component fixed to the housing can be supported in an orthogonal direction by means of specially matched spring elements on the component fixed to the pod, while the characteristics of the initial support by the first spring device and the second spring device remain unchanged.

[0026] The first spring device and / or the second spring device are preferably designed to be extended in the shape of a hollow truncated cone. A hollow truncated cone is a truncated cone with a cavity. The cavity also has the shape of a truncated cone.

[0027] The first spring device and / or the second spring device can support the device fixed relative to the housing not only axially but also radially on the device fixed relative to the pod by means of the hollow truncated cone-shaped extended design, thereby eliminating the need for a third spring device.

[0028] The first spring device and the second spring device, which are designed in the form of a hollow truncated cone, preferably point toward each other with their tapering ends. According to the design, the first spring device and the second spring device have the shape of a hollow truncated cone, which tapers in the direction of the other spring device. The hollow truncated cone that describes the shape of the first spring device thus tapers in the direction of the second spring device. Conversely, the hollow truncated cone that describes the shape of the second spring device tapers in the direction of the first spring device. This achieves a form-locking fixation of the device fixed relative to the pod between the spring devices.

[0029] The device fixed relative to the pod comprises a first part and a second part in a preferred extended design scheme. The first part and the second part form physically separate parts from each other, i.e., are not integrally connected to each other. In addition, the first part and the second part are preferably detachably connected to each other.

[0030] The first spring device supports the component fixed relative to the housing on the first part. The second spring device correspondingly supports the component fixed relative to the housing on the second part. The first spring device can in particular support a first part of the component fixed relative to the housing on the first part of the component fixed relative to the pod, wherein the second spring device supports a second part of the component fixed relative to the housing on the second part of the component fixed relative to the pod.

[0031] Due to the two-part design of the means fixed to the pod and, if applicable, the means fixed to the housing, the arrangement can be assembled in a simpler manner and, in the case of a detachably joined connection, can also be disassembled in a simpler manner.

[0032] The wind turbine according to the invention has a transmission and a pod. According to the invention, the wind turbine also has three or four means of the above-mentioned type, with which the housing of the transmission can be fixed in the pod.

[0033] The wind turbine is preferably designed in such a way that the first spring means and the second spring means of the three or four installations are respectively arranged on different sides of the same plane extending parallel to the axis of rotation of the input shaft of the transmission. This results in a particularly simple embodiment of the means for fixing relative to the housing. In particular, a plate-shaped component can be used, which forms the means for fixing relative to the nacelle of at least two of the installations, preferably all three or four installations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Preferred embodiments of the present invention are shown in the accompanying drawings. Identical reference numerals are used to denote identical or functionally identical features.

[0035] Figure 1 The elastically supported drive train of the wind power plant is shown in detail;

[0036] Figure 2 The spring element of the spring device is shown in detail;

[0037] Figure 3 The device having a hollow truncated cone-shaped elastic body is shown in detail; and

[0038] FIG. 4 shows an arrangement with two hollow truncated-conical elastic bodies. DETAILED DESCRIPTION

[0039] Figure 1 The transmission support 101 is shown in the basic shape of a cylinder. A housing 103 is fixed in a frame 105 fixed relative to the pod by means of the transmission support 101. The main shaft of the wind turbine is supported in the housing 103. The main shaft connects the rotor of the wind turbine to the input shaft of the transmission in a rotationally fixed manner.

[0040] The frame 105 has a plate 107. This plate, a supporting foot 109 fixed to the housing, a counter seat 110 and three elastic bodies 111, 113, 115 together form a transmission mechanism support portion 101.

[0041] The elastic bodies 111, 113, 115 each have the shape of a hollow cylinder, that is, a cylinder with a cylindrical cavity. A column 117 formed by the support foot 109 and the counter seat 110 extends through the cavity of the elastic bodies 111, 113, 115. The column 117 connects the support foot 109 to the counter seat 110. For the purpose of assembly and disassembly, the column is implemented in two parts.

[0042] The first elastic body 111 is arranged between the supporting foot 109 and the plate 107. In this way, the supporting foot can be supported in the plate 107 by the elastic body 111 in the first direction.

[0043] A mating seat 110 is arranged on the side of the plate 107 opposite to the supporting foot 109. The second elastic body 113 is located between the mating seat 110 and the plate 107. The mating seat 110 can be supported in the plate 107 in a second direction opposite to the first direction by the second elastic body. By arranging the supporting foot 109 and the mating seat 110 on the opposite sides of the plate 107, the housing 107 is fixed in the plate 107 in the first direction and the second direction by the first elastic body 111 and the second elastic body 113.

[0044] The third elastic body 115 is used for fixing orthogonally thereto. The third elastic body is located in a recess 119 of the plate 107. The column 117 is supported on the recess 119 by the third elastic body 115.

[0045] You can Figure 2As shown in FIG. 2 , a plurality of elastomers are used in each case instead of a single, integrally implemented first elastomer 111 and a likewise integrally implemented second elastomer 113. The elastomers are arranged in two groups, namely a first group 201 and a second group 203.

[0046] The first group 201 of elastic bodies is located between the support foot 109 and the plate 107. They are grouped rotationally symmetrically around the column 107 and bear the Figure 1 The function of the first elastic body 111 is as follows.

[0047] The elastic bodies of the second group 203 are arranged between the mating seat 110 and the plate 107. They are also grouped rotationally symmetrically around the column 117. The elastic bodies of the second group 203 are accordingly responsible for Figure 1 The function of the second elastic body 113 is as follows.

[0048] exist Figure 3 The transmission mechanism support 301 shown in FIG. is sufficient without the third elastic body 115. This is achieved by designing the second elastic body 113 as a hollow truncated cone. The bearing surfaces in the plate 107 and the mating seat 111 are respectively designed accordingly, that is, they have the shape of the side surfaces of a truncated cone.

[0049] Due to the hollow truncated cone design, the second elastic body 113 can absorb forces in the axial and radial directions. Figure 1 Consistently has the shape of a hollow cylinder.

[0050] exist Figure 4A and 4B In the transmission mechanism support part 401 shown, in addition to the second elastic body 113, the first elastic body 111 is also designed as a hollow truncated cone. There is no third elastic body 115 here either, because the first elastic body 113 and the second elastic body 111 can also absorb radial forces due to their hollow cone design. Figure 4A and 4B The transmission mechanism support portion 401 is thus also as shown in FIG. Figure 3 Like the transmission mechanism support part 301 of FIG. 1 , the transmission mechanism support part 301 has exactly two elastic bodies, namely the first elastic body 111 and the second elastic body 113 .

[0051] A supporting flange 403 for the first elastic body 111 is arranged on the plate 107. The supporting flange is screwed to the plate 107. The first elastic body 111 is braced between the supporting flange 403 and the supporting foot 109.

[0052] The support flange 401 is implemented in two parts. The support flange consists of a first half 403a and a second half 403b. The two halves 403a, 403b are screwed to each other. The support flange 401 can thus be easily installed and removed. In particular, the support flange 401 can also be removed later for repair and maintenance purposes.

[0053] Reference numerals list

[0054] 101 Transmission mechanism support

[0055] 103 Housing

[0056] 105 Rack

[0057] 107 Board

[0058] 109 Support Foot

[0059] 110 Pairing Seat

[0060] 111 Elastomer

[0061] 113 Elastomer

[0062] 115 Elastomer

[0063] 117 Column

[0064] 119 blank space

[0065] 201 The first group of elastic bodies

[0066] 203 The second group of elastic bodies

[0067] 301 Transmission mechanism support

[0068] 401 Transmission mechanism support

[0069] 403 Support flange

[0070] 403a First half of the support flange

[0071] 403b Second half of the support flange

Claims

1. A device (101, 301, 401) for fixing a housing (103) of a wind power transmission mechanism in a pod, the device comprising a device (109, 110) fixed relative to the housing, a device (105, 107, 403) fixed relative to the pod, and at least two spring devices (111, 113, 201, 203); wherein: The spring device (111, 113, 201, 203) supports the device (109, 110) fixed relative to the housing to the device (105, 107, 403) fixed relative to the nacelle in opposite directions along the support axis; characterized in that The spring devices (111, 113, 201, 203) are arranged on different sides of a plane extending parallel to the rotation axis of the input shaft of the wind turbine drive.

2. The facility (101, 301, 401) according to claim 1, characterized in that: At least one of the at least two spring devices (111, 113, 201, 203) is rotationally symmetrical about the support axis.

3. The installation (101, 301, 401) according to any of the preceding claims, characterized in that The spring devices (111, 113, 201, 203) are mirror-symmetrical to each other with respect to the plane.

4. The installation (101, 301, 401) according to any of the preceding claims, characterized in that The plane intersects the device (109, 110) fixed relative to the housing and / or the device (105, 107, 403) fixed relative to the pod.

5. Installation (101, 301, 401) according to the preceding claim, characterized in that A portion (107, 403) of the device (105, 107, 403) fixed relative to the pod is arranged between the spring devices (111, 113, 201, 203) and between a first portion (109) and a second portion (110) of the device (109, 110) fixed relative to the housing; wherein: The first spring device (111, 201) is arranged between the first part (109) of the device (109, 110) fixed relative to the housing and the part (107, 403) of the device (105, 107) fixed relative to the nacelle; and wherein, The second spring device (113, 203) is arranged between the second part (110) of the means (109, 110) fixed relative to the housing and the part (107, 403) of the means (105, 107, 403) fixed relative to the nacelle.

6. The facility (101, 301, 401) according to claim 4 or 5, characterized in that: The device (109, 110) fixed relative to the housing has a connecting element (117), which connects the first part (109) and the second part (110) to each other and extends through a recess (119) of the device (105, 107, 403) fixed relative to the pod.

7. Installation (101) according to the preceding claim, characterized in that A third spring device (115) is provided, which is at least partially arranged in the recess (119); wherein: The connecting element (117) extends through a recess of the third spring device (115).

8. The installation (301, 401) according to any of the preceding claims, characterized in that The first spring device (111) and / or the second spring device (113) has a shape of a hollow truncated cone.

9. Installation (401) according to the preceding claim, characterized in that The first spring device (111) and the second spring device (113) have the shape of a hollow truncated cone, and the hollow truncated cone gradually tapers toward the other spring device (113, 111).

10. The installation (101, 301, 401) according to any of the preceding claims, characterized in that The first part (109) and the second part (110) of the device (109, 110) fixed relative to the housing are implemented as physically separate parts and are joined to each other; wherein, A first spring device (111, 201) supports the first part (109) on the device fixed relative to the nacelle, and a second spring device (113, 203) supports the second part () on the device fixed relative to the nacelle.

11. The installation (401) according to any one of the preceding claims, characterized in that The device (105, 107, 403) fixed relative to the pod comprises a first part (403) and a second part (105, 107); wherein, The first part (403) and the second part (105, 107) form physically separate parts and are joined to each other; wherein, The first spring device (111) supports the components (109, 110) fixed to the housing on the first part (403), and the second spring device (113) supports the components (109, 110) fixed to the housing on the second part (105, 107).

12. A wind power plant, the wind power plant comprising a transmission mechanism and a pod; characterized in that There are a total of three or four installations (101, 301, 401) according to any of the preceding claims; wherein The housing (103) of the wind power transmission mechanism is fixed in the pod using the facility (101, 301, 401).

13. Wind power plant according to the preceding claim, characterized in that The first spring devices (111, 201) and the second spring devices (113, 203) of the three or four devices (101, 301, 401) are respectively arranged on different sides of the same plane extending parallel to the rotation axis of the input shaft of the wind power transmission mechanism.

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