Heightening tool for assembling cabin of wind turbine generator

Abstract

The heightening tool comprises an upper support, a lower support and a supporting beam structure, the upper end face of the upper support is used for supporting and being connected with a cabin transportation support, and the lower end face of the upper support is jointly supported through the lower support and the supporting beam structure and is connected with the lower support through bolts. The lower support and the supporting beam structure are connected through a bolt and matched with each other through a key groove structure. According to the heightening tool, the key groove structures matched with each other are arranged between the lower support used for bearing the cabin transportation support and the supporting beam structure on the basis of bolt connection, on one hand, circumferential fixation of the lower support and the supporting beam structure can be achieved so as to transmit motion and torque, and therefore the bending resistance of the overall structure of the heightening tool is enhanced; the installation occasion with larger load, such as a high-power wind turbine generator set, can be met; and on the other hand, the size assembly precision between the lower support and the supporting beam structure is improved through the key groove structure, the overall bearing capacity is better, and the structure is particularly suitable for assembly connection between bearing welding parts.

Description

Technical Field

[0001] The invention relates to the technical field of wind power generation, and in particular to a heightening tool used for assembling a nacelle of a wind turbine generator set. Background Art

[0002] With the continuous development of human society, energy issues have become one of the primary issues for the development of countries around the world. The development and utilization of new renewable energy in the energy field has become a top priority in the development tasks of all countries. As a new type of renewable energy, wind energy has been increasingly valued by many countries in the world. Wind power generation is to convert the kinetic energy of flowing air into mechanical energy through a wind wheel, and then drive the motor to generate electricity. In recent years, the wind power industry has developed rapidly, and large-scale and large-capacity wind turbines have continued to increase, and the size of the internal components and nacelles of the units has also increased accordingly.

[0003] Small wind turbines have small cabins and ample transportation dimensions, so the cabins can be installed directly on the transport brackets. As the size of the models increases, the cabin size increases. In order to meet the height requirements of the transportation dimensions, the height of the transport brackets needs to be compressed, resulting in the height of the transport brackets not meeting the requirements of workshop or on-site assembly. Therefore, heightening tooling is required to complete cabin assembly.

[0004] The function of the heightening tool is to raise the installation height of the nacelle. During the installation of the nacelle cover, the lower end of the generator bracket needs to remain suspended to ensure the installation of the nacelle cover. Therefore, the fixing of the unit is concentrated at the front end of the heightening tool, while the overall center of gravity of the nacelle is at the rear, which makes the heightening tool easy to bend and deform.

[0005] With the continuous emergence of large-scale wind power equipment, the development of tooling installation equipment has not kept up with the needs of the situation. Traditional heightening tooling has poor bending resistance and can only adapt to a single nacelle cover size. With the rapid iteration of wind turbines, in order to solve the above problems, a heightening tooling with excellent bending resistance is urgently needed to adapt to the current large-scale unit assembly. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above-mentioned problems, the present invention provides a heightening tool for assembling a wind turbine cabin, comprising an upper bracket, a lower bracket and a support beam structure, the upper end surface of the upper bracket is used to support and connect the cabin transport bracket, the lower end surface is jointly supported by the lower bracket and the support beam structure and is bolted to the lower bracket, the lower bracket is connected to the support beam structure by bolts and cooperates with each other through a keyway structure.

[0008] Furthermore, the support beam structure includes two cross beams arranged parallel to each other and a rear support beam having two ends bolted to the two cross beams respectively, and the rear support beam is spaced a certain distance from the lower bracket along the extension direction of the cross beam.

[0009] Furthermore, the heightening tooling includes two lower brackets of the same structure that are arranged at intervals along the extension direction of the crossbeam, and the end of each lower bracket connected to the crossbeam is provided with a bolt connection hole and a groove structure; the crossbeam is provided with a bolt connection hole corresponding to the bolt connection hole and a key structure matching the groove structure.

[0010] Furthermore, the key structure is composed of a long steel plate, and the groove structure is constructed to penetrate along the length direction of the key structure, so that the same side groove structure of the two lower brackets is respectively matched with the same key structure of the crossbeam.

[0011] Furthermore, the upper bracket includes two arc segments that are oppositely arranged and match the contour of the cabin transport bracket and two straight segments that are oppositely arranged. The two arc segments and the two straight segments are connected to each other end to end to form an annular structure. The two arc segments are respectively arranged on a lower bracket and bolted to the lower bracket, and the two straight segments are respectively arranged on a cross beam.

[0012] Furthermore, the arc section includes an upper arc plate, a lower arc plate, an intermediate arc plate and a plurality of rib plates, the upper arc plate and the lower arc plate are welded together by the intermediate arc plate, so that the arc section is constructed into an I-shaped structure with a radial cross-section, the upper arc plate is provided with a bolt connection hole for connecting to the cabin transport bracket, and the lower arc plate is provided with a bolt connection hole for connecting to the lower bracket; the plurality of rib plates are evenly distributed on both sides of the intermediate arc plate.

[0013] Furthermore, the lower bracket includes an H-shaped steel, a triangular steel plate, a square steel plate assembly and a rib plate, the square steel plate assembly is welded to the end of the H-shaped steel, the two right-angled sides of the triangular steel plate are respectively welded to the H-shaped steel and the square steel plate assembly, the upper end triangular steel plates on the opposite sides of the two lower brackets and the upper flange plates of the H-shaped steel together form the end surface of the arc section supporting the upper bracket 1 and each is provided with bolt connection holes distributed along the contour of the arc section; the rib plates are evenly distributed between the upper and lower flange plates on both sides of the H-shaped steel web and the upper and lower triangular steel plates.

[0014] Furthermore, the square steel plate assembly includes a pair of connecting steel plates bolted to the crossbeam, and the pair of connecting steel plates are spaced apart in a height direction to form the groove structure.

[0015] Furthermore, the crossbeam includes an H-shaped steel, a steel plate and the key structure. The upper and lower edges of the outer side surface of the steel plate are respectively welded to the inner ends of the two flange plates of the H-shaped steel, so that the steel plate is arranged parallel to the web of the H-shaped steel. The key structure is welded to the central position of the inner side surface of the steel plate, and the steel plate is respectively provided with bolt connection holes connected to the lower bracket above and below the key structure.

[0016] Furthermore, the web of the H-shaped steel is provided with evenly distributed operating holes along the length direction.

[0017] The present invention provides mutually matching keyway structures between the lower bracket and the support beam structure for carrying the cabin transport bracket on the basis of bolt connection. On the one hand, the circumferential fixation of the lower bracket and the support beam structure can be realized to transmit motion and torque, thereby enhancing the bending resistance of the overall structure of the heightening tooling, and meeting the installation occasions with large loads such as large-power wind turbines. On the other hand, the keyway structure is utilized to improve the dimensional assembly accuracy between the lower bracket and the support beam structure, so that the overall load-bearing capacity is better. This structure is particularly suitable for assembly and connection between load-bearing welded parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following drawings of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the device and principle of the present invention. In the drawings,

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the heightening tooling according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of part A in FIG.

[0021] Figure 3It is a schematic diagram of the three-dimensional structure of the upper bracket of the heightening tooling according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower bracket of the heightening tooling according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the crossbeam of the heightening tooling according to an embodiment of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the rear support beam of the heightening tooling according to an embodiment of the present invention.

[0025] The symbols in the accompanying drawings are as follows:

[0026] 1. Upper bracket; 11. Arc section; 111. Upper arc plate; 1110. Bolt connection hole; 112. Lower arc plate; 1120. Bolt connection hole; 113. Intermediate arc plate; 114. Rib plate; 12. Straight section; 121. Steel plate; 122. Steel plate; 123. Steel plate;

[0027] 2. Lower bracket; 201. Groove structure; 21. H-shaped steel; 211. Upper flange plate; 2110. Bolt connection hole; 22. Triangular steel plate; 220. Bolt connection hole; 23. Square steel plate assembly; 231. Connecting steel plate; 2310. Bolt connection hole; 232. Steel plate; 233. Steel plate; 24. Rib plate; 241. First rib plate; 242. Second rib plate;

[0028] 3. Support beam assembly; 31. Cross beam; 311. Key structure; 312. H-shaped steel; 3120. Operating hole; 313. Steel plate; 3130. Bolt connection hole; 32. Rear support beam; 321. H-shaped steel; 322. Steel plate; 3220. Bolt connection hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be understood that, unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. Terms such as "parts" and "pieces" that appear in this article can represent both single parts and combinations of multiple parts. The singular forms of "one", "an" and "said / the" are also intended to include plural forms unless the context clearly indicates otherwise. Ordinal numbers such as "first" and "second" are merely identifiers and do not have any other meaning, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". When the terms "comprising" and / or "including" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right", "inside", "outside", "center", "vertical", "horizontal" and similar expressions are for illustrative purposes only and are not limiting. The terms "connect", "install", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The features described in this document in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0031] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present invention and do not limit the present invention.

[0032] The present invention provides a heightening tool for assembling a wind turbine nacelle. Figure 1-6As shown, the processing tooling includes an upper bracket 1, a lower bracket 2 and a support beam structure 3. Among them, the upper end surface of the upper bracket 1 is used to support and connect the cabin transport bracket, and the lower end surface is supported by the lower bracket 2 and the support beam structure 3 and is bolted to the lower bracket 2. The lower bracket 2 and the support beam structure 3 are bolted and cooperate with each other through a keyway structure. The keyway structure transmits force by the side, has high positioning accuracy, and can realize the circumferential fixation of the lower bracket and the support beam structure to transmit motion and torque, thereby enhancing the bending resistance of the overall structure of the heightening tooling, which can meet the installation occasions with large loads such as large-power wind turbines; moreover, the keyway structure is used to improve the dimensional assembly accuracy between the lower bracket and the support beam structure, so that the overall bearing capacity is better. This structure is particularly suitable for assembly and connection between load-bearing welded parts. Further, the support beam structure 3 includes two crossbeams 31 arranged in parallel to each other and a rear support beam 32 with two ends respectively bolted to the two crossbeams 31.

[0033] According to an embodiment of the present invention, the upper bracket 1 includes two arc sections 11 and two straight sections 12 arranged opposite to each other and matching the profile of the cabin transport bracket, and the two arc sections 11 and the two straight sections 12 are connected end to end to form an annular structure. Accordingly, the heightening tooling of the present invention includes two lower brackets 2 arranged at intervals along the extension direction of the crossbeam 31 and having the same structure, and the two ends of each lower bracket 2 are respectively connected to the two crossbeams 31 by bolts and keyway structures. The two arc sections 11 of the upper bracket 1 are respectively arranged on one of the lower brackets 2 and bolted to the lower bracket 2, and the two straight sections 12 are respectively arranged on one of the crossbeams 31.

[0034] Specifically, the arc section 11 includes an upper arc plate 111, a lower arc plate 112 arranged transversely, and an intermediate arc plate 113 arranged vertically. The upper arc plate 111 and the lower arc plate 112 are welded together through the intermediate arc plate 113, so that the arc section is configured into a structure with an I-shaped radial cross section; the upper arc plate 111 is provided with a bolt connection hole 1110 for connecting with the cabin transport bracket; the lower arc plate 112 is provided with a bolt connection hole 1120 for connecting with the lower bracket 2. Preferably, the arc section 11 also includes a plurality of ribs 114 evenly distributed on both sides of the intermediate arc plate 113, the upper end of each rib 114 is welded to the upper arc plate 111, the lower end is welded to the lower arc plate 112, and one side is welded to the intermediate arc plate 113, so as to strengthen the structural strength of the upper bracket 1. The straight section 12 includes a steel plate 121 whose front and rear ends are respectively welded to the two upper arc plates 111, a steel plate 122 whose front and rear ends are respectively welded to the two lower arc plates 112, and a steel plate 123 whose upper and lower ends are respectively welded to the steel plates 121 and 122.

[0035] According to an embodiment of the present invention, the lower bracket 2 includes an H-shaped steel 21, a triangular steel plate 22, a square steel plate assembly 23 and a rib plate 24. The square steel plate assembly 23 is welded to the end of the H-shaped steel 21, and the two right-angled sides of the triangular steel plate 22 are welded to the H-shaped steel 21 and the square steel plate assembly 23 respectively; the square steel plate assembly 23 includes a pair of connecting steel plates 231 arranged side by side and bolted to the crossbeam 31 and two pairs of oppositely arranged steel plates 232 and 233, and the steel plates 232 and 233 are respectively welded to the connecting steel plate 231 perpendicularly to each other, so that the square steel plate assembly 23 is constructed into a cubic configuration with one side open. The pair of connecting steel plates 231 are spaced apart in the height direction to form a groove structure 201 for matching with the keyway of the crossbeam 3, thereby avoiding the process of separately grooving on the structural member; each connecting steel plate 231 is provided with a bolt connection hole 2310 connected to the crossbeam 31. The rib plate 24 includes a first rib plate 241 evenly distributed between the upper and lower flange plates on both sides of the web of the H-shaped steel 21 at the center position of the lower bracket 2, and a second rib plate 242 respectively welded to the upper and lower flange plates of the H-shaped steel 21 and the upper and lower triangular steel plates 22 at both ends of the lower bracket 2. Among them, the second rib plate 242 is provided with a semicircular hole at the junction of the H-shaped steel 21 and the triangular steel plate 22 to avoid the weld between the H-shaped steel 21 and the triangular steel plate 22. The upper end face triangular steel plates 22 on the opposite sides of the two lower brackets 2 and the upper flange plates 211 of the H-shaped steel 21 jointly form the supporting end face of the arc section 11 of the upper bracket 1 and are respectively provided with bolt connection holes 2110, 220 distributed along the contour of the arc section 11; in addition, the lower end face of the lower bracket 2 is provided with a triangular steel plate 22 to increase the contact area between the heightening tooling and the ground to improve the bearing capacity.

[0036] According to an embodiment of the present invention, the cross beam 31 includes an H-shaped steel 312, a steel plate 313 and a key structure 311. The upper and lower edges of the outer side surface of the steel plate 313 are respectively welded to the inner ends of the two flange plates of the H-shaped steel 312, so that the steel plate 313 is arranged parallel to the web of the H-shaped steel 312; the key structure 311 is composed of a long strip of steel plate, welded to the central position of the inner side surface of the steel plate 313, and the steel plate 313 is provided with bolt connection holes 3130 connected to the lower bracket 2 above and below the key structure 311. Accordingly, the slot structure 201 of the lower bracket 2 is constructed to penetrate along the length direction of the key structure 311, so that the same side slot structure 201 of the two lower brackets 2 is respectively matched with the same key structure 311 of the cross beam 31, and the key structure 311 is inserted into the slot structure 201 of the two lower brackets 2 to form a key slot match during installation. By providing a long key structure 311 on one side of the cross beam 31, so that it forms a keyway with the groove structure 201 of the two spaced lower brackets 2, the spacing between the two lower brackets 2 can be adjusted as needed, so that the heightening work can be adapted to different models. Preferably, the web of the H-shaped steel 312 is provided with evenly distributed operating holes 3120 along the length direction, so as to facilitate the bolt connection operation between the cross beam 31 and the lower bracket 2 and the rear support beam 32 and reduce the overall weight of the cross beam 31.

[0037] According to an embodiment of the present invention, the rear support beam 32 includes an H-shaped steel 321 and a steel plate 322 welded to both ends of the H-shaped steel 321. The steel plate 322 is provided with a bolt connection hole 3220 connected to the cross beam 31. The rear support beam 32 is spaced apart from the lower bracket 2 serving as the front bearing structure of the heightening tooling by a certain distance along the extension direction of the cross beam 31. As the rear bearing structure of the heightening tooling, this arrangement can further improve the overall bearing capacity of the heightening tooling.

[0038] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A heightening tool for assembling a wind turbine nacelle, characterized in that: The invention comprises an upper bracket (1), a lower bracket (2) and a support beam structure (3); the upper end surface of the upper bracket (1) is used to support and connect the cabin transport bracket; the lower end surface is supported by the lower bracket (2) and the support beam structure (3) and is bolted to the lower bracket (2); the lower bracket (2) and the support beam structure (3) are bolted to each other and cooperate with each other through a keyway structure.

2. The heightening tool according to claim 1, characterized in that: The support beam structure (3) comprises two cross beams (31) arranged in parallel with each other and a rear support beam (32) having two ends respectively connected to the two cross beams (31) by bolts, and the rear support beam (32) and the lower bracket (2) are spaced a certain distance apart along the extension direction of the cross beam (31).

3. The heightening tool according to claim 2, characterized in that: The heightening tooling comprises two lower brackets (2) of the same structure and arranged at intervals along the extension direction of the crossbeam (31); the end of each lower bracket (2) connected to the crossbeam (31) is provided with a bolt connection hole (2310) and a groove structure (201); the crossbeam (31) is provided with a bolt connection hole (3130) corresponding to the bolt connection hole (2310) and a key structure (311) matching the groove structure (201).

4. The heightening tool according to claim 3, characterized in that: The key structure (311) is composed of a long steel plate, and the groove structure (201) is constructed to penetrate along the length direction of the key structure (311), so that the same side groove structure (201) of the two lower brackets (2) is respectively matched with the same key structure (311) of the crossbeam (31).

5. The heightening tool according to claim 3, characterized in that: The upper bracket (1) comprises two arc segments (11) arranged opposite to each other and matching the contour of the cabin transport bracket and two straight segments (12) arranged opposite to each other, the two arc segments (11) and the two straight segments (12) being connected end to end to each other to form an annular structure, the two arc segments (11) being respectively arranged on a lower bracket (2) and being bolted to the lower bracket (2), and the two straight segments (12) being respectively arranged on a cross beam (31).

6. The heightening tool according to claim 5, characterized in that: The arc section (11) comprises an upper arc plate (111), a lower arc plate (112), an intermediate arc plate (113) and a plurality of rib plates (114); the upper arc plate (111) and the lower arc plate (112) are welded together via the intermediate arc plate (113), so that the arc section is configured to have an I-shaped structure in radial cross-section; the upper arc plate (111) is provided with a bolt connection hole (1110) for connecting to a cabin transport bracket; the lower arc plate (112) is provided with a bolt connection hole (1120) for connecting to the lower bracket (2); and the plurality of rib plates (114) are evenly distributed on both sides of the intermediate arc plate (113).

7. The heightening tool according to claim 5, characterized in that: The lower bracket (2) comprises an H-shaped steel (21), a triangular steel plate (22), a square steel plate assembly (23) and a rib plate (24); the square steel plate assembly (23) is welded to the end of the H-shaped steel (21); the two right-angled sides of the triangular steel plate (22) are respectively welded to the H-shaped steel (21) and the square steel plate assembly (23); the upper end triangular steel plates (22) on the opposite sides of the two lower brackets (2) and the upper flange plates (211) of the H-shaped steel (21) jointly form the end surface of the circular arc section (11) supporting the upper bracket (1) and are each provided with bolt connection holes (2110, 220) distributed along the contour of the circular arc section (11); the rib plate (24) is evenly distributed between the upper and lower flange plates on both sides of the web of the H-shaped steel (21) and the upper and lower triangular steel plates (22).

8. The heightening tool according to claim 7, characterized in that: The square steel plate assembly (23) comprises a pair of connecting steel plates (231) bolted to the crossbeam (31), and the pair of connecting steel plates (231) are spaced apart in a height direction to form the slot structure (201).

9. The heightening tool according to claim 4, characterized in that: The cross beam (31) comprises an H-shaped steel (312), a steel plate (313) and the key structure (311); the upper and lower edges of the outer side surface of the steel plate (313) are respectively welded to the inner ends of the two flange plates of the H-shaped steel (312), so that the steel plate (313) is arranged parallel to the web of the H-shaped steel (312); the key structure (311) is welded to the central position of the inner side surface of the steel plate (313); and the steel plate (313) is respectively provided with bolt connection holes (3130) connected to the lower bracket (2) above and below the key structure (311).

10. The heightening tool according to claim 9, characterized in that: The web of the H-shaped steel (312) is provided with evenly distributed operating holes (3120) along the length direction.

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