Support frame for fan hub

Abstract

The utility model relates to a supporting frame for a fan hub, the fan hub is provided with a mounting hole for pre-penetrating of a bolt, the supporting frame comprises a supporting frame body and a plurality of supporting blocks, the supporting frame body is used for being supported on the ground, and the supporting blocks are arranged on the supporting frame body. The multiple supporting blocks are connected to the supporting frame body and arranged in the circumferential direction of the supporting frame body at intervals. According to the technical scheme, the supporting frame for the fan hub can improve the safety in the operation process of pre-penetrating a bolt into a wind wheel.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind power generation, and particularly to a support frame for a fan hub. Background Art

[0002] During the installation process of a wind turbine generator, the blades need to be assembled with the hub to form a wind rotor, and the bolts connected to the transmission chain are pre-passed through the fan hub.

[0003] In the related art, after the blades and the fan hub are assembled into a wind rotor, the assembled wind rotor is usually lifted by a hoisting device, and the staff performs the pre-passing operation of the bolts below the wind rotor. When the staff operates below the wind rotor, there are relatively large potential safety hazards. Summary of the Utility Model

[0004] The purpose of the present disclosure is to provide a support frame for a fan hub, which can improve the safety during the operation of pre-passing bolts for the wind rotor.

[0005] To achieve the above purpose, the present disclosure provides a support frame for a fan hub. The fan hub has mounting holes for pre-passing bolts. The support frame includes a support frame body and a plurality of support blocks. The support frame body is used to support on the ground, and the plurality of support blocks are connected to the support frame body and are arranged at intervals along the circumference of the support frame body.

[0006] Optionally, the support block is detachably connected to the support frame body, and the support block is detachably connected to the fan hub.

[0007] Optionally, the support frame includes a first fastener. The support block has a mounting groove. A first connection hole is provided on the side wall of the mounting groove close to the support frame body, and a second connection hole corresponding to the first connection hole is provided on the support frame body. The first fastener passes through the first connection hole and is connected to the second connection hole.

[0008] Optionally, the support frame includes a second fastener. A third connection hole is provided on the side wall of the mounting groove away from the support frame body. The second fastener passes through the third connection hole and is connected to the fan hub.

[0009] Optionally, the support frame body includes a support base, a connecting frame, and a mounting frame. The support base is used to support on the ground. The connecting frame connects the support base and the mounting frame, and the support block is installed on the mounting frame.

[0010] Optionally, through holes are provided on the connecting frame.

[0011] Optionally, the number of the connecting frames is multiple and they are evenly distributed at intervals.

[0012] Optionally, the mounting bracket is configured as an annular structure or a frame structure, and the cross-section of the mounting bracket is U-shaped or I-shaped.

[0013] Optionally, a receiving space is formed between the support base and the mounting bracket, and a portal passage for allowing personnel to enter the receiving space is formed between two adjacent connecting brackets.

[0014] Optionally, the connecting bracket is welded to the support base and the mounting bracket.

[0015] Through the above technical solutions, in the support frame for a fan hub provided by the present disclosure, a support frame body and a plurality of support blocks are provided. Through the cooperation of the support frame body and the plurality of support blocks, the fan hub is reliably supported, facilitating operations such as the assembly of blades and the fan hub and the pre-passing of bolts by personnel, avoiding accidents caused by the passing of bolts after lifting the wind wheel, improving the operation safety. In addition, compared with the state where the fan hub is in the lifted state, in the present application, the pre-passing operation of bolts is performed when the fan hub is in the supported state, improving the operation convenience and operation efficiency.

[0016] Other features and advantages of the present disclosure will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and are used to explain the present disclosure together with the following specific implementation, but do not constitute a limitation to the present disclosure. In the drawings:

[0018] Figure 1 is a schematic structural diagram of a hub support frame provided by an exemplary embodiment of the present disclosure;

[0019] Figure 2 is another schematic structural diagram of a hub support frame provided by an exemplary embodiment of the present disclosure;

[0020] Figure 3 is a schematic structural diagram of the support frame body of a hub support frame provided by an exemplary embodiment of the present disclosure;

[0021] Figure 4 is a schematic structural diagram of a support block of a hub support frame provided by an exemplary embodiment of the present disclosure.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS

[0023] 1 - Support frame body; 10 - Second connection hole; 11 - Support base; 12 - Connection frame; 121 - Through hole; 13 - Mounting frame; 2 - Support block; 20 - Accommodating space; 21 - Mounting groove; 22 - First connection hole; 23 - Third connection hole; 3 - First fastener; 30 - Gate-shaped channel; 100 - Support frame. Detailed implementation manners

[0024] The following will describe the detailed implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only for explaining and illustrating the present disclosure, and are not used to limit the present disclosure.

[0025] In the present disclosure, the terms "first", "second", etc. are used to distinguish one element from another, and do not have sequentiality and importance. In addition, in the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings represent the same or similar elements. The above definitions are only for explaining and illustrating the present disclosure, and should not be construed as a limitation to the present disclosure.

[0026] The present disclosure provides a support frame for a wind turbine hub. Referring to Figures 1 to 3 as shown, the wind turbine hub has mounting holes for pre-piercing bolts. The support frame 100 includes a support frame body 1 and a plurality of support blocks 2. The support frame body 1 is used to support on the ground, and the plurality of support blocks 2 are connected to the support frame body 1 and are arranged at intervals along the circumference of the support frame body 1.

[0027] Through the above technical solution, in the support frame 100 for a wind turbine hub provided by the present disclosure, the support frame body 1 and the plurality of support blocks 2 are provided. Through the cooperation of the support frame body 1 and the plurality of support blocks 2, the wind turbine hub is reliably supported, facilitating operations such as the assembly of the blades and the wind turbine hub and the pre-piercing of bolts by personnel, avoiding accidents caused by the piercing of bolts after lifting the wind turbine rotor, improving the operation safety. In addition, compared with the state where the wind turbine hub is in the lifted state, the present application performs the pre-piercing operation of bolts when the wind turbine hub is in the supported state, improving the operation convenience and operation efficiency.

[0028] In the present disclosure, the support block 2 is provided on the end face of the support frame body 1 away from the ground. In this way, the wind turbine hub only contacts the support block 2 and is located above the support frame 100, making the overall support frame 100 have a relatively high support height for personnel to perform operations. Among them, the number of support blocks 2 can be set to three, four, five, etc., and the present disclosure does not make specific limitations on this.

[0029] To ensure the supporting performance and improve the operation convenience at the same time, the number of the supporting blocks 2 can be set to three, and the three supporting blocks 2 are evenly spaced along the circumferential direction of the supporting frame body 1. In this way, the fan hub can be subjected to uniform supporting force to ensure the stability of the fan hub. Moreover, a relatively large gap can be formed between two adjacent supporting blocks 2, so that personnel can pre-thread bolts on the fan hub through the gap. Similarly, to further improve the operation convenience, the thickness of the supporting block 2 can be appropriately increased to increase the distance between the fan hub and the supporting frame body 1, so as to increase the height of the gap.

[0030] In the exemplary embodiment provided by the present disclosure, as shown in Figure 1 and Figure 2 the supporting block 2 can be detachably connected to the supporting frame body 1, and the supporting block 2 can be detachably connected to the fan hub. By setting like this, the supporting block 2 can be disassembled. When the supporting block 2 is worn, a new supporting block 2 can be replaced to ensure the supporting stability. Or because there are differences in the positions of the mounting holes on different specifications of fan hubs relative to the axis, in order to better avoid the mounting holes on the hub, the supporting block 2 with different widths (along the radial direction of the fan hub) can be adapted according to the positions of the mounting holes on the fan hub, that is, by replacing the supporting blocks 2 with different width dimensions to meet the supporting requirements of more specifications of fan hubs.

[0031] In the exemplary embodiment provided by the present disclosure, as shown in Figure 1 and Figure 4 the supporting frame 100 can include a first fastener 3. The supporting block 2 has a mounting groove 21. A first connection hole 22 is provided on the side wall of the mounting groove 21 close to the supporting frame body 1, and a second connection hole 10 corresponding to the first connection hole 22 is provided on the supporting frame body 1. The first fastener 3 passes through the first connection hole 22 and is connected to the second connection hole 10. In the above technical solution, the first fastener 3 can be a screw or a bolt. The number of the first fasteners 3 can be multiple, and the multiple first fasteners 3 are spaced along the circumferential direction of the supporting frame body 1 to ensure the reliability of the connection between the supporting block 2 and the supporting frame body 1 and facilitate disassembly and assembly. By providing the mounting groove 21 and providing the first connection hole 22 on the side wall of the mounting groove 21 close to the supporting frame body 1, the first fastener 3 is located in the mounting groove 21, which improves the structural compactness and is beneficial to light weight. Moreover, since the side wall thickness of the mounting groove 21 is relatively thin, the thickness for passing through the first fastener 3 is small, which is convenient for passing through the first fastener 3 and improves the operation convenience.

[0032] In the exemplary embodiment provided by the present disclosure, as shown in Figure 2 and Figure 4As shown, the support frame 100 may include a second fastener. A third connection hole 23 is provided on the side wall of the mounting groove 21 away from the support frame body 1, and the second fastener passes through the third connection hole 23 to be connected to the fan hub. In the above technical solution, the second fastener may be a screw or a bolt, and the number of the second fasteners may be multiple. The multiple second fasteners are distributed at intervals along the circumference of the support frame body 1. Multiple mounting holes are provided on the fan hub, and the second fastener passes through the third connection hole 23 to be connected to the corresponding mounting hole, ensuring the reliability of the connection between the support block 2 and the fan hub and facilitating disassembly and assembly. Similarly, the third connection hole 23 is provided on the side wall of the mounting groove 21 away from the support frame body 1, so that the second fastener is located within the mounting groove 21, improving the structural compactness, being beneficial to light weight, and moreover, reducing the penetration thickness of the second fastener, facilitating the penetration of the second fastener, and improving the operation convenience.

[0033] In the present disclosure, with reference to Figure 4 As shown, the third connection hole 23 may be provided corresponding to the first connection hole 22. Specifically, the third connection hole 23 may be coaxially arranged with the corresponding first connection hole 22. In this way, a support partition may be provided between two adjacent first connection holes 22, or a support partition may be provided between two adjacent third connection holes 23. Thus, a first connection hole 22 for penetrating the first fastener 3 and a third connection hole for penetrating the second fastener are formed between two adjacent support partitions, facilitating the disassembly and assembly of the support block 2 and improving the strength of the support block 2 at the same time.

[0034] In the exemplary embodiment provided by the present disclosure, with reference to Figure 1 and Figure 2 As shown, the support frame body 1 may include a support base 11, a connecting frame 12, and a mounting frame 13. The support base 11 is used to support on the ground, the connecting frame 12 connects the support base 11 and the mounting frame 13, and the support block 2 is mounted on the mounting frame 13. In the above technical solution, the support base 11 is configured as a frame structure. In this way, it is beneficial to light weight and is beneficial to the effective contact between the support base 11 and the ground, improving the stability of the support frame body 1. The connecting frame 12 serves to connect the support base 11 and the mounting frame 13, and the height of the connecting frame 12 determines the main height of the supported fan hub. Here, the mounting frame 13 serves to support each support block 2.

[0035] In the exemplary embodiment provided by the present disclosure, with reference to Figure 1As shown in the figure, there are multiple connecting frames 12 and they are evenly spaced. In order to ensure the support strength of the support frame body 1, the number of the support blocks 2 can be set to be consistent with the number of the connecting frames 12, and the third connecting holes 23 can be set corresponding to the connecting frames 12, so that after the support blocks 2 are installed on the mounting frames 13, the support blocks 2 can correspond to the connecting frames 12, thereby forming reliable support between the support blocks 2, the connection parts of the mounting frames 13 and the connecting frames 12, the connecting frames 12 and the support frame body 1.

[0036] In the exemplary embodiments provided in the present disclosure, referring to Figure 1 and Figure 3 As shown in , the connecting frame 12 may be provided with a through hole 121. The through hole 121 may be used to pass a steel wire rope, so that the roadbed plate may be placed on the ground, the steel wire rope may be passed through the through hole 121, and the support seat 11 may be fixed to the roadbed plate with a tightening tool, so that the support frame 100 may be fixed to the roadbed plate, and then used to support the fan hub. In this way, by making the roadbed plate contact with the ground, the support frame 100 is prevented from directly contacting the ground, and the roadbed plate can increase the friction between the roadbed plate and the ground, thereby improving the stability of the support frame 100 during use.

[0037] In the exemplary embodiments provided in the present disclosure, referring to Figures 1 to 3 As shown in , the mounting frame 13 is constructed as an annular structure or a frame structure, and the cross section of the mounting frame 13 is U-shaped or I-shaped. In this way, it is not only conducive to light weight, but also the U-shaped or I-shaped are formed with a recessed part, which plays a role of avoiding, and is convenient for wearing the first fastener 3, so as to fix the support block 2 to the mounting frame 13, or remove the support block 2, which is conducive to quick disassembly and assembly of the support block 2.

[0038] In the exemplary embodiment provided by the present disclosure, a receiving space 20 is formed between the support seat 11 and the mounting frame 13, and a door-shaped passage 30 for allowing personnel to enter the receiving space 20 is formed between two adjacent connecting frames 12. By providing the receiving space 20, sufficient space is reserved to ensure that the bolts can be smoothly inserted into the fan hub, and the door-shaped passage 30 is provided to facilitate personnel to enter the receiving space 20 according to actual needs, so as to perform pre-insertion of the bolts and other operations, thereby improving convenience.

[0039] In the exemplary embodiment provided by the present disclosure, the connecting frame 12 can be connected to the supporting seat 11 and the mounting frame 13 by welding, thereby improving the firmness of the connection and ensuring the overall stability of the supporting frame body 1.

[0040] refer to Figures 1 to 4 As shown in the figure, the support frame for the fan hub is used as follows:

[0041] The support base 11 is supported on the ground. Place the support blocks 2 matching the wind turbine hub at the corresponding positions on the mounting frame 13. Pass the first fastener 3 through the first connection hole 22 and connect it to the second connection hole 10 to fix the support block 2 to the mounting frame 13. After all the support blocks 2 are fixed to the mounting frame 13, place the wind turbine hub on the support blocks 2 and make the mounting holes of the wind turbine hub correspond to the third connection holes 23. Then, pass the second fastener through the third connection holes 23 and connect it to the corresponding mounting holes to fix the wind turbine hub to the support blocks 2. Thus, the installation of the support frame of this wind turbine hub is completed. After that, personnel can perform operations such as the assembly of the blades and the wind turbine hub and the pre-passing of bolts, improving the operation safety and convenience.

[0042] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0043] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present disclosure does not separately describe various possible combination methods.

[0044] Furthermore, any combination can be made among various different embodiments of the present disclosure as long as it does not violate the idea of the present disclosure, and it should also be regarded as the content disclosed by the present disclosure.

Claims

1. A support frame for a fan hub, characterized in that: The fan hub has mounting holes for pre-inserting bolts, and the support frame includes a support frame body and a plurality of support blocks, the support frame body is used to be supported on the ground, the plurality of support blocks are connected to the support frame body and the plurality of support blocks are arranged at intervals along the circumference of the support frame body.

2. The support frame for a fan hub according to claim 1, characterized in that: The support block is detachably connected to the support frame body, and the support block is detachably connected to the fan hub.

3. The support frame for a fan hub according to claim 2, characterized in that: The support frame includes a first fastener, the support block has an installation groove, the installation groove is provided with a first connecting hole on the side wall close to the support frame body, the support frame body is provided with a second connecting hole opposite to the first connecting hole, and the first fastener passes through the first connecting hole and is connected to the second connecting hole.

4. The support frame for a fan hub according to claim 3, characterized in that: The support frame includes a second fastener, and a third connecting hole is provided on the side wall of the mounting groove away from the support frame body. The second fastener passes through the third connecting hole and is connected to the fan hub.

5. The support frame for a fan hub according to claim 1, characterized in that: The support frame body comprises a support seat, a connecting frame and a mounting frame, the support seat is used to be supported on the ground, the connecting frame connects the support seat and the mounting frame, and the support block is installed on the mounting frame.

6. The support frame for a fan hub according to claim 5, characterized in that: The connecting frame is provided with a through hole.

7. The support frame for a fan hub according to claim 5, characterized in that: The connecting frames are multiple and evenly distributed at intervals.

8. The support frame for a fan hub according to claim 7, characterized in that: The mounting frame is constructed as a ring structure or a frame structure, and the cross section of the mounting frame is U-shaped or I-shaped.

9. The support frame for a fan hub according to claim 7, characterized in that: An accommodating space is formed between the support seat and the mounting frame, and a door-shaped passage for allowing personnel to enter the accommodating space is formed between two adjacent connecting frames.

10. The support frame for a fan hub according to claim 5, characterized in that: The connecting frame is welded to the supporting seat and the mounting frame.

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