Auxiliary assembling tool and assembling method of wind generating set

Abstract

The invention provides an auxiliary assembling tool and an assembling method of a wind generating set, the auxiliary assembling tool is suitable for the wind generating set, the auxiliary assembling tool comprises a base and an adapter flange, the adapter flange is connected to the base through a tool support, the adapter flange is used for being connected with an adapter section flange, and the adapter section flange is connected with the tool support. The tool support is provided with a support channel, the tool support can enter an inner cavity of the adapter flange from the radial outer side of the adapter flange through the support channel, and the auxiliary assembling tool can be used for installing an adapter section, a generator, a hub and other structures, so that in the assembling process of the wind generating set, the adapter section can be conveniently assembled, and the assembling efficiency is improved. And the parts do not need to be hoisted to the upper part of the tower for many times, so that the hoisting cost is saved, and the assembling cost of the wind generating set is also reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind turbine generator assembly, and in particular relates to an auxiliary assembly tool and a wind turbine generator assembly method. Background Art

[0002] With the rise of clean energy, people are paying more attention to wind energy. A wind turbine is a system that converts the kinetic energy of wind into electrical energy. A wind turbine usually includes a tower, a generator, and an impeller. The generator and the impeller are usually arranged at the top of the tower, and the impeller is connected to the generator through the main shaft, so that the rotation of the impeller drives the generator to generate electricity.

[0003] Since components such as generators and impellers are all installed on the top of the tower, with the popularity of large-megawatt units, the height of the tower is getting higher and higher. The aerial assembly of components such as generators and impellers will require a lot of manpower and financial resources. This is an important reason why the assembly cost of wind turbines remains high. Summary of the invention

[0004] The main purpose of the present disclosure is to provide an auxiliary assembly tool and an assembly method of a wind turbine generator set, so as to reduce the assembly cost of the wind turbine generator set.

[0005] In view of the above objectives, the present disclosure provides the following technical solutions:

[0006] In one aspect of the present disclosure, there is provided an auxiliary assembly tool, which is suitable for a wind turbine generator set. The auxiliary assembly tool comprises a base and an adapter flange. The adapter flange is connected to the base via a tool bracket. The adapter flange is used to connect an adapter section flange. The tool bracket is provided with a bracket channel, through which the inner cavity of the adapter flange can be entered from the radial outer side of the adapter flange.

[0007] According to an exemplary embodiment of the present disclosure, the auxiliary assembly tool further includes a ladder extending from the base along the axis of the adapter flange, and the ladder is disposed in an inner cavity of the adapter flange.

[0008] Specifically, the auxiliary assembly tool also includes a counterweight, and the counterweight is movably connected to the base.

[0009] Furthermore, the base is provided with a guide rail, and the counterweight is slidably arranged on the guide rail.

[0010] According to another exemplary embodiment of the present disclosure, the tooling bracket includes a longitudinal beam extending along the axis of the adapter flange and an oblique beam connected between the base and the longitudinal beam, the oblique beam is arranged radially outward of the adapter flange, and the angle between the oblique beam and the base is less than 90°.

[0011] Specifically, the adapter flange is provided with a fastener mounting hole, which is a waist-shaped hole and extends along the circumference of the adapter flange; or, the adapter flange is provided with a fastener mounting hole, which is a cross-shaped hole, one hole of the cross-shaped hole extends along the circumference of the adapter flange, and the other hole extends along the radial direction of the adapter flange.

[0012] Furthermore, the inner diameter of the adapter flange is configured to match the outer diameter of the adapter section flange.

[0013] In another aspect, the present disclosure provides a method for assembling a wind turbine generator set, the method comprising the following steps:

[0014] Connecting the bottom flange of the transition section to the transition flange of the auxiliary assembly tool, wherein the auxiliary assembly tool includes the auxiliary assembly tool as described above;

[0015] Assembling the machine head assembly on the auxiliary assembly tooling;

[0016] Removing the auxiliary assembly tool from the nose assembly;

[0017] The head assembly is connected to the tower.

[0018] Furthermore, the step of assembling the head assembly on the auxiliary assembly tooling includes:

[0019] Connecting the cabin platform to the top flange of the transition section;

[0020] connecting a generator to the nacelle platform;

[0021] The nacelle cover is arranged on the nacelle platform.

[0022] Specifically, the wind turbine generator assembly method further includes:

[0023] After the step of connecting the bottom end flange of the transition section to the transition flange of the auxiliary assembly tooling, the electrical cabinet is connected to the transition section.

[0024] According to another exemplary embodiment of the present disclosure, the inner cavity of the transition section is provided with a support platform, and the electrical cabinet is arranged on the support platform.

[0025] Specifically, the step of assembling the head assembly on the auxiliary assembly tooling also includes: connecting the hub to the nacelle platform, and the assembly method of the wind turbine generator set also includes: after the step of connecting the head assembly to the tower, installing the blades on the hub.

[0026] Optionally, the wind turbine generator assembly method further includes:

[0027] Connecting a plurality of blades to a hub to form an impeller;

[0028] The impeller is hoisted onto the head assembly.

[0029] Furthermore, the step of connecting the bottom flange of the transition section to the transition flange of the auxiliary assembly tooling includes:

[0030] Placing the adapter section above the adapter flange;

[0031] Insert the fasteners into the fastener mounting holes and the flange holes of the bottom flange that are aligned with each other up and down.

[0032] The auxiliary assembly tooling and wind turbine generator assembly method provided by the present invention have at least the following beneficial effects: the auxiliary assembly tooling provided by the present invention can be used to install transition sections and structures such as generators and hubs, so that during the assembly process of the wind turbine generator, there is no need to lift components to the top of the tower multiple times, thereby saving lifting costs and reducing the assembly cost of the wind turbine generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0034] Figure 1 A structural diagram of an auxiliary assembly tooling provided for an exemplary embodiment of the present disclosure.

[0035] Figure 2 A method for assembling a wind turbine generator set is provided as an exemplary embodiment of the present disclosure.

[0036] Figure 3 A diagram of the leveling state of an auxiliary assembly tooling provided for an exemplary embodiment of the present disclosure.

[0037] Figure 4 This is a structural diagram of the transfer section connected to the auxiliary assembly tooling.

[0038] Figure 5 This is a structural diagram of the electrical cabinet connected to the transfer section.

[0039] Figure 6 This is a structural diagram of the cabin platform connected to the transition section.

[0040] Figure 7 This is a structural diagram of the generator connected to the cabin platform.

[0041] Figure 8 This is a structural diagram of the hub connected to the cabin platform.

[0042] Fig. 9 This is a structural diagram of the nose assembly connected to the tower.

[0043] Fig.10 This is a structural diagram of the blade connected to the hub.

[0044] Description of reference numerals:

[0045] 1. Base; 2. Adapter flange;

[0046] 3. Tooling bracket; 4. Ladder;

[0047] 5. Counterweight; 6. Transition section

[0048] 7. Yaw bearing; 8. Electrical cabinet;

[0049] 9. Support platform; 10. Cabin platform;

[0050] 11. Generator; 12. Wheel hub;

[0051] 13. Tower; 14. Blade;

[0052] 31. Stringer;

[0053] 32. Inclined beam; 33. Bracket channel; DETAILED DESCRIPTION

[0054] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0055] In one aspect, the present disclosure provides an auxiliary assembly tool, which is suitable for a wind turbine generator set. The auxiliary assembly tool includes a base 1 and an adapter flange 2. The adapter flange 2 is connected to the base 1 through a tool bracket 3. The adapter flange 2 is used to connect the adapter section flange. The tool bracket 3 is provided with a bracket channel 33, through which the inner cavity of the adapter flange 2 can be entered from the radial outer side of the adapter flange 2.

[0056] The head assembly provided by the present disclosure (mainly including the generator 11, the hub 12 and other components) can be assembled with the aid of the auxiliary assembly tool, which reduces the number of high-altitude lifting and assembly times, thereby reducing the assembly cost of the wind turbine generator set. Furthermore, the auxiliary assembly tool provided by the present disclosure has a simple structure, which makes it possible to assemble multiple components on the top of the tower 13 on the ground, thereby reducing the assembly cost of the wind turbine generator set.

[0057] Reference Figure 1As an example, the base 1 of the auxiliary assembly tool in this embodiment is composed of a frame structure, for example but not limited to, the frame structure is welded with I-beams or connected with fasteners in a "well" shape to have better stability, and the base 1 uses less material and is easy to carry.

[0058] Reference Fig.10 The wind turbine generator set includes a tower 13 and a transition section 6 arranged above the tower 13. The transition section 6 is rotatably arranged on the top of the tower 13. Specifically, a yaw bearing 7 is arranged between the tower 13 and the transition section 6. The bearing moving ring of the yaw bearing 7 is connected to the bottom end of the transition section 6, and the bearing fixed ring of the yaw bearing 7 is connected to the top of the tower 13. The bearing moving ring rotates relative to the bearing fixed ring, so that the transition section 6 rotates relative to the tower 13, so that the hub 12 located above the transition section 6 can yaw relative to the tower 13.

[0059] Reference Figures 9 and 10 As an example, the outer ring of the yaw bearing 7 is connected to the bottom end of the transition section 6, and the inner ring of the yaw bearing 7 is connected to the top of the tower 13, but the present invention is not limited thereto. Further, the inner diameter of the transition flange 2 is set to match the outer diameter of the bottom flange of the transition section 6. For example, the inner diameter of the transition flange 2 is smaller than the outer diameter of the bottom flange of the transition section 6, so that the bottom flange of the transition section 6 can be supported on the transition flange 2.

[0060] In order to further improve the on-site assembly efficiency of the wind turbine generator set, the adapter section 6 can be pre-assembled with the yaw bearing 7, but the present invention is not limited thereto.

[0061] Reference Figure 5 The wind turbine generator set also includes an electrical cabinet 8 such as a transformer and a converter, and the electrical cabinet 8 is arranged on the transfer section 6. For example, but not limited to, the electrical cabinet 8 is arranged in the inner cavity of the transfer section 6. Specifically, the inner cavity of the transfer section 6 is provided with a support platform 9, and the electrical cabinet 8 is arranged on the support platform 9. In this way, the electrical cabinet 8 is connected to the transfer section 6, avoiding the high-altitude lifting and assembly of the electrical cabinet 8, thereby further reducing the assembly cost of the wind turbine generator set. As an example, a plurality of electrical cabinets 8 can be arranged in the inner cavity of the transfer section 6, and they can be arranged as needed, but this is not limited to this.

[0062] In this embodiment, compared with the solution in which the electrical cabinet 8 is arranged in the cabin, this embodiment arranges the electrical cabinet 8 in the inner cavity of the transfer section 6, which can reduce the volume of the cabin, thereby reducing the cabin cost, and thus reducing the cost of the wind turbine generator set. Furthermore, by arranging the electrical cabinet 8 in the inner cavity of the transfer section 6, the operator can enter the transfer section 6 through the ladder in the inner cavity of the tower 13, and then inspect and disassemble the electrical cabinet 8, that is, by arranging the electrical cabinet 8 in the inner cavity of the transfer section 6, the operation and maintenance cost of the wind turbine generator set is reduced.

[0063] Continue to refer to Figure 1 The auxiliary assembly tooling provided by the present invention is provided with a bracket channel 33 on the tooling bracket 3, and the operator can enter the inner cavity of the adapter flange 2 from the radial outer side of the adapter flange 2 through the bracket channel 33. The operator does not need to bypass the top of the adapter flange 2 and then enter the inner cavity of the adapter flange 2, thereby improving the assembly efficiency of the wind turbine generator set.

[0064] Continue to refer to Figure 1 The auxiliary assembly tool of this embodiment further includes a ladder 4 extending from the base 1 along the axis of the adapter flange 2, and the ladder 4 is arranged in the inner cavity of the adapter flange 2. The present disclosure arranges the ladder 4 in the inner cavity of the adapter flange 2 to facilitate the operator to climb to the height of the adapter flange 2, thereby facilitating the operator to connect the bottom flange of the adapter section 6 to the adapter flange 2, but is not limited thereto.

[0065] In order to improve the connection reliability of the ladder 4, the bottom end of the ladder 4 is fixed to the base 1, and the top end of the ladder 4 is fixed to the inner wall of the adapter flange 2, but not limited thereto. As an example, the ladder 4 can be connected to the base 1 or the adapter flange 2 by fasteners, or by welding, but not limited thereto. As an example, the auxiliary assembly tooling can include multiple ladders 4, and the multiple ladders 4 can be arranged at intervals along the circumference of the adapter flange 2, but not limited thereto.

[0066] In order to improve the versatility of auxiliary assembly tooling, continue to refer to Figure 1 Specifically, the auxiliary assembly tool also includes a counterweight 5, which is movably connected to the base 1. The present invention can adapt to different head assemblies by setting the counterweight 5. The counterweight 5 can be used to resist the bending moment generated by the head assembly, so that the auxiliary assembly tool maintains balance and improves the reliability of the auxiliary assembly tool.

[0067] In order to improve the convenience of the movement of the counterweight 5, the base 1 is further provided with a guide rail (not shown), and the counterweight 5 can be slidably arranged on the guide rail. As an example, the guide rail is arranged on the base 1 and extends along the "well"-shaped frame of the guide rail, but it is not limited to this. Optionally, the guide rail can also extend along the circumference of the adapter flange 2 to facilitate the circumferential movement of the counterweight 5 along the adapter flange 2, so that the position of the counterweight 5 can be adjusted according to the head assembly. The structural form and setting position of the guide rail can be designed according to the needs, but it is not limited to this.

[0068] Reference Figure 8 and Fig. 9The head assembly provided in this embodiment mainly includes a transition section 6, a cabin platform 10 arranged at the top of the transition section 6, a generator 11 arranged on the cabin platform 10, and an electrical cabinet 8 arranged in the cabin platform 10 or the transition section 6. The main shaft of the generator 11 can be connected to the hub 12 of the impeller so that the rotation energy of the hub 12 can drive the generator 11 to generate electricity. In this embodiment, the head assembly may not include the blades 14 to facilitate lifting. Continue to refer to Figure 1 and Figure 3 In order to further improve the ability of the auxiliary assembly tooling to resist the bending moment generated by the head assembly, the present invention discloses another exemplary embodiment, the tooling bracket 3 includes a longitudinal beam 31 extending along the axis of the adapter flange 2 and an oblique beam 32 connected between the base 1 and the longitudinal beam 31, the oblique beam 32 is arranged on the radial outside of the adapter flange 2, and the angle between the oblique beam 32 and the base 1 is less than 90°.

[0069] The present disclosure sets the tooling bracket 3 as a beam structure composed of a longitudinal beam 31 and an oblique beam 32 connected to each other, thereby reducing the material cost of the tooling bracket 3, reducing the manufacturing cost of the auxiliary assembly tooling, and further reducing the weight of the auxiliary assembly tooling, making it easier to carry. In addition, the longitudinal beam 31 and the oblique beam 32 are connected to form a triangular structure, which has good stability, further improves the reliability of the auxiliary assembly tooling, and can well resist the bending moment generated by the head assembly.

[0070] In this embodiment, the tooling bracket 3 mainly bears the gravity of the machine head assembly and the bending moment caused by gravity, and the stability of the auxiliary assembly tool is improved by the cooperation between the counterweight 5 and the tooling bracket 3.

[0071] In order to further improve the assembly efficiency of the transition section 6, specifically, the transition flange 2 is provided with a fastener mounting hole, which is a waist-shaped hole and extends along the circumference of the transition flange 2. In this embodiment, by setting the fastener mounting hole as a waist-shaped hole, the probability of the flange hole on the bottom flange of the transition section 6 and the fastener mounting hole being aligned is improved. When assembling the transition section 6, the bottom flange of the transition section 6 is directly placed on the transition flange 2, and then the fastener is inserted into the flange hole that can be aligned with the fastener mounting hole up and down, without additional adjustment of the transition section 6, thereby further improving the assembly efficiency of the transition section 6. Furthermore, the number of flange holes on the transition section 6 of the same diameter may be different. By setting the fastener mounting hole as a waist-shaped hole, it can adapt to the transition section 6 with the same bottom flange but different flange hole positions, thereby improving the versatility of the auxiliary assembly tooling.

[0072] In order to improve the versatility of the auxiliary assembly tooling, the adapter flange 2 is provided with fastener mounting holes, and the fastener mounting holes are cross holes, one of the cross holes extends along the circumference of the adapter flange 2, and the other hole extends along the radial direction of the adapter flange 2. It can be understood that the fastener mounting holes in this embodiment are convenient for aligning the flange holes on the adapter section 6 through the holes extending along the circumference of the adapter flange 2, without the need for additional adjustment of the position of the adapter section 6, thereby improving the versatility of the auxiliary assembly tooling; further, through the holes extending along the radial direction of the adapter flange 2, it is possible to align with the flange holes on the adapter sections 6 of different diameters, so that the auxiliary assembly tooling can adapt to the bottom flanges of the adapter sections 6 of different diameters, thereby further improving the versatility of the auxiliary assembly tooling.

[0073] The auxiliary assembly tooling provided by the present disclosure can realize the ground assembly of the adapter section 6 and the head assembly having the adapter section 6, avoiding high-altitude lifting and high-altitude assembly, thereby improving the assembly efficiency and construction safety of the head assembly, and thus improving the assembly efficiency and construction safety of the wind turbine generator set, and reducing the assembly cost of the wind turbine generator set. Furthermore, the fastener mounting holes on the adapter flange 2 are waist-shaped holes or cross-shaped holes, which can adapt to flange holes at different positions, improve the versatility of the auxiliary assembly tooling, and further reduce the assembly cost of the wind turbine generator set. The auxiliary assembly tooling provided by the present disclosure has a simple structure, is light in weight, and is easy to carry.

[0074] Continue to refer to Figure 5 Furthermore, the electrical cabinet 8 of the wind turbine generator set in this embodiment is arranged in the inner cavity of the transfer section 6. Compared with the structure in which the electrical cabinet 8 is arranged in the nacelle, the nacelle of the wind turbine generator set in this embodiment is smaller in size, thereby reducing the manufacturing cost of the nacelle. The electrical cabinet 8 can be assembled on the ground with the aid of auxiliary assembly tooling, reducing the frequency of aerial hoisting and assembly of the wind turbine generator set, thereby further reducing the assembly cost of the wind turbine generator set.

[0075] Reference Figures 2 to 10 In another aspect, the present disclosure provides a method for assembling a wind turbine generator set, the method comprising the following steps:

[0076] Connect the bottom flange of the transition section 6 to the transition flange 2 of the auxiliary assembly tooling, such as Figure 4 As shown, the auxiliary assembly tooling includes the auxiliary assembly tooling as above;

[0077] Assembling the machine head assembly on the auxiliary assembly tooling;

[0078] Remove the auxiliary assembly tooling from the nose assembly;

[0079] Connect the head assembly to the tower 13, as shown in FIG. Fig. 9 shown.

[0080] Specifically, before assembling the adapter section 6, the auxiliary assembly tooling can be adjusted so that the adapter flange 2 is roughly horizontally arranged (that is, the auxiliary assembly tooling is leveled, such as Figure 3 As shown), the bending moment caused by the inclination of the adapter flange 2 is reduced, thereby improving the stability of the auxiliary assembly tooling.

[0081] In the step of connecting the bottom flange of the transition section 6 to the transition flange 2 of the auxiliary assembly tool, it is usually necessary to lift the transition section 6 to a predetermined height with the help of a hoist. For example, but not limited to, the transition section 6 can be lifted above the transition flange 2, and then lowered until the bottom flange of the transition section 6 is located on the transition flange 2, but not limited to this. At this time, the operator can enter the inner cavity of the transition flange 2 through the bracket channel 33, and then use the ladder 4 to reach the height of the bottom flange of the transition section 6, and respectively connect multiple fasteners to the flange holes and the fastener installation holes, so as to firmly connect the transition section 6 to the auxiliary assembly tool, such as Figure 4 As shown, but not limited to.

[0082] Furthermore, the step of connecting the bottom end flange of the transition section 6 to the transition flange 2 of the auxiliary assembly tooling includes: placing the transition section 6 above the transition flange 2; inserting fasteners (not shown) into the fastener mounting holes and flange holes of the bottom end flange that are arranged in opposite positions up and down.

[0083] As an example, the assembly process of the head assembly can be roughly described as follows: the electrical cabinet 8 can be firstly arranged in the inner cavity of the transfer section 6, such as Figure 5 As shown, as required, the electrical cabinet 8 can be lifted to a predetermined height by means of a lifting device so that it can be placed on the supporting platform 9 in the inner cavity of the transition section 6, and then the electrical cabinet 8 is fixed on the supporting platform 9, but it is not limited thereto. Then, the cabin platform 10 is connected to the top flange of the transition section 6, as shown in FIG. Figure 6 As shown, the generator 11 is then installed on the cabin platform 10. Figure 7 As shown, the assembly of the head assembly is preliminarily completed. As an example, after the generator 11 is assembled to the cabin platform 10, it is usually necessary to adjust the angle of the generator 11 so that the generator 11 can match the main shaft, but it is not limited thereto.

[0084] Reference Figure 8 The wheel hub 12 can be connected to the nacelle platform 10 on the auxiliary assembly tooling, and the wheel hub 12 serves as a component of the nose assembly.

[0085] After completing the ground assembly steps of the nose assembly, the auxiliary assembly tooling can be removed from the nose assembly to leave the flange hole on the bottom flange of the transition section 6 free, in preparation for the connection between the nose assembly and the tower 13 .

[0086] The head assembly can be hoisted to the top of the tower 13 by means of a hoist, and the bottom flange of the adapter section 6 is adjusted to be aligned with the top flange of the tower 13, and the adapter section 6 is connected to the tower 13 using fasteners, such as Fig. 9 As shown, but not limited to.

[0087] After the step of connecting the nose assembly to the tower 13, the blades 14 are mounted on the hub 12 of the nose assembly, such as Fig.10 Specifically, the hub 12 may be provided with a plurality of blades 14, each blade 14 is hoisted and assembled on the hub 12 in the air, but the present invention is not limited thereto.

[0088] The wind turbine generator set assembly method provided by the present invention enables the head assembly to be assembled on the ground with the help of auxiliary assembly tooling, which reduces the time of aerial lifting and assembly, thereby avoiding the time of the lifting equipment being occupied, and thus reducing the assembly cost of the wind turbine generator set.

[0089] The second exemplary embodiment of the present disclosure is different from the above-mentioned embodiments in that the impeller in this embodiment is assembled on the ground, and there is no need to hoist individual blades into the air separately, which further reduces the number of times the wind turbine components are assembled and hoisted in the air, thereby reducing the assembly cost of the wind turbine.

[0090] Continue to refer to Figure 7 At this time, the nose assembly mainly includes the transition section 6, the cabin platform 10 located above the transition section 6, and the generator 11 arranged on the cabin platform 10. At this time, the hub 12 is not connected.

[0091] At this time, the auxiliary assembly tooling can be removed from Figure 7 The head assembly in the tower 13 is removed to make the flange hole on the bottom flange of the transition section 6 free, so as to prepare for the connection between the head assembly and the tower 13. Figure 7 The head assembly in the machine is hoisted to the top of the tower 13 by a hoist, and the bottom flange of the adapter section 6 is adjusted to be aligned with the top flange of the tower 13, and the adapter section 6 is connected to the tower 13 using fasteners (not shown). The impeller pre-assembled on the ground can be hoisted to Figure 7 Onto the nose assembly to complete the assembly of the wind turbine.

[0092] As an example, the impeller in this embodiment is a hub 12 on which blades 14 are arranged on the blade flanges. For example, but not limited to, three blade flanges are arranged on the hub 12, and each blade flange is provided with blades 14, which can be called an impeller, but is not limited to this.

[0093] In this embodiment, the assembly of the impeller and the assembly of the head assembly can be carried out simultaneously; or the assembly of the impeller can be completed first, and then the assembly of the head assembly can be carried out; or the assembly of the head assembly can be completed first, and then the assembly of the impeller can be carried out, all of which are within the protection scope of the present disclosure.

[0094] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0095] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0096] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" 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, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0097] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. An auxiliary assembly tool, characterized in that: The auxiliary assembly tool is suitable for a wind turbine generator set, and the auxiliary assembly tool comprises: Base (1), An adapter flange (2), the adapter flange (2) being connected to the base (1) via a tooling bracket (3), the adapter flange (2) being used to connect to the bottom flange of the adapter section (6), the tooling bracket (3) being provided with a bracket channel (33), through which the inner cavity of the adapter flange (2) can be entered from the radial outer side of the adapter flange (2).

2. The auxiliary assembly tool as claimed in claim 1, characterized in that: The auxiliary assembly tool also includes a ladder (4) extending from the base (1) along the axis of the adapter flange (2), and the ladder (4) is arranged in the inner cavity of the adapter flange (2).

3. The auxiliary assembly tool as claimed in claim 1, characterized in that: The auxiliary assembly tool also includes a counterweight (5), and the counterweight (5) is movably connected to the base (1).

4. The auxiliary assembly tool as claimed in claim 3, characterized in that: The base (1) is provided with a guide rail, and the counterweight (5) is slidably arranged on the guide rail.

5. The auxiliary assembly tool as claimed in claim 1, characterized in that: The tooling bracket (3) comprises a longitudinal beam (31) extending along the axis of the adapter flange (2) and an inclined beam (32) connected between the base (1) and the longitudinal beam (31); the inclined beam (32) is arranged on the radial outer side of the adapter flange (2), and the angle between the inclined beam (32) and the base (1) is less than 90°.

6. The auxiliary assembly tool as claimed in claim 1, characterized in that: The adapter flange (2) is provided with a fastener mounting hole, the fastener mounting hole is a waist-shaped hole, and the waist-shaped hole extends along the circumference of the adapter flange (2); or, The adapter flange (2) is provided with fastener mounting holes, which are cross holes, one of which extends along the circumference of the adapter flange (2) and the other extends along the radial direction of the adapter flange (2).

7. The auxiliary assembly tool as claimed in claim 1, characterized in that: The inner diameter of the adapter flange (2) is configured to match the outer diameter of the bottom end flange of the adapter section (6).

8. A method for assembling a wind turbine generator set, characterized in that: The wind turbine generator assembly method comprises the following steps: Connecting the bottom end flange of the transition section (6) to the transition flange (2) of the auxiliary assembly tool, wherein the auxiliary assembly tool comprises the auxiliary assembly tool as claimed in any one of claims 1 to 7; Assembling the machine head assembly on the auxiliary assembly tooling; Removing the auxiliary assembly tool from the nose assembly; The head assembly is connected to the tower.

9. The method for assembling a wind turbine generator set according to claim 8, characterized in that: The step of assembling the head assembly on the auxiliary assembly tooling comprises: Connecting the cabin platform (10) to the top flange of the transition section (6); Connecting a generator (11) to the cabin platform (10); The nacelle cover is arranged on the nacelle platform (10).

10. The method for assembling a wind turbine generator set according to claim 8, characterized in that: The wind turbine generator assembly method further comprises: After the step of connecting the bottom end flange of the transition section (6) to the transition flange (2) of the auxiliary assembly tooling, the electrical cabinet (8) is connected to the transition section (6).

11. The method for assembling a wind turbine generator set according to claim 10, wherein: The inner cavity of the transfer section (6) is provided with a support platform (9), and the electrical cabinet (8) is arranged on the support platform (9).

12. The method for assembling a wind turbine generator set according to claim 9, characterized in that: The step of assembling the nose assembly on the auxiliary assembly tooling further includes: connecting the wheel hub (12) to the cabin platform (10), The wind turbine generator assembly method further comprises: After the step of connecting the nose assembly to the tower, the blades (14) are mounted on the hub (12).

13. The method for assembling a wind turbine generator set according to claim 8, characterized in that: The wind turbine generator assembly method further comprises: Connecting a plurality of blades (14) to a hub (12) to form an impeller; The impeller is hoisted onto the head assembly.

14. The method for assembling a wind turbine generator set according to claim 8, characterized in that: The step of connecting the bottom flange of the transition section (6) to the transition flange (2) of the auxiliary assembly tooling comprises: Placing the adapter section (6) above the adapter flange (2); Insert the fasteners into the fastener mounting holes and the flange holes of the bottom flange that are aligned with each other up and down.

Images