A method for hoisting a wind turbine hub

Abstract

The present application relates to wind turbine maintenance technical field, especially a kind of wind turbine hub inner hoisting device, including the following steps: setting hoisting component on the upper wind turbine, the hoisting component is set on the fairing one openable opening unit, can accommodate the in and out of material;The hoisting component is set in the portable hoisting machine in hub, portable hoisting machine is transported to hub interior along with staff by tower tube;Through the opening unit, the material required for the operation and maintenance of wind turbine is directly hoisted to hub interior by portable hoisting machine, the opening is made on the fairing by the present application, so that staff can directly hoist material into hub interior by opening, and after hoisting is completed, its blocking assembly closes trapezoidal port, so as to not affect the influence of external environment on hub when fairing is normally used, thereby greatly improve the transport efficiency and safety of material.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind turbine maintenance, in particular to a wind turbine hub internal hoisting method. BACKGROUND

[0002] In the operation and maintenance of wind turbines, the problem of material delivery and hoisting in the hub has always been difficult. Now the maintenance personnel enter the narrow position of the hub, and it is usually difficult to carry large-sized materials and spare parts;

[0003] When replacing the variable pitch motor and other operations in the hub, the material is hoisted from the tower drum to the nacelle, and then delivered to the hub by the maintenance personnel in the nacelle using a portable crane. The position of the nacelle into the hub is narrow, the variable pitch motor and other spare parts weigh more than 200 kg, and usually 5-6 people work together, which is dangerous. Some large-sized spare parts cannot be delivered to the hub. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above-mentioned problem of inconvenient transportation of materials in the narrow tower drum of the wind turbine, the present application is proposed.

[0006] Therefore, the purpose of the present application is to provide a wind turbine hub internal hoisting method.

[0007] To solve the above technical problems, the present application provides the following technical solutions: a wind turbine hub internal hoisting method, comprising a wind turbine hub internal hoisting device, the wind turbine hub internal hoisting device comprising:

[0008] a hub (100) comprising a shell (101), a hoisting assembly (102) arranged on the shell (101), and a bracket (103) arranged on the shell (101);

[0009] an opening unit (200) comprising a fairing (201) arranged on the bracket (103), a trapezoidal opening (202) arranged on the fairing (201), a shielding assembly (203) arranged on the fairing (201), a moving assembly (204) arranged on the shielding assembly (203), a guide assembly (205) arranged on the fairing (201), a sealing assembly (206) arranged on the fairing (201), and a locking assembly (207) arranged on the moving assembly (204);

[0010] Also included are:

[0011] The wind turbine hub internal hoisting device is arranged in the hub (100), and the portable hoisting machine is transported to the inside of the hub (100) by the staff.

[0012] The wind turbine hub internal hoisting device is arranged in the hub (100), and the portable hoisting machine is transported to the inside of the hub (100) by the staff.

[0013] Through the opening unit (200), the portable hoisting machine is directly hoisted to the inside of the hub (100) for the material required for the operation and maintenance of the wind turbine.

[0014] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: the opening of the opening unit (200) is arranged on the guide cone (201) and is staggered with the blade of the hub (100), and when the wind turbine is stopped, the opening is on the lowest side of the guide cone (201), so as to facilitate the hoisting of the material.

[0015] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: the portable hoisting machine comprises a lifting mechanism and a control mechanism, the lifting mechanism is used for vertical and horizontal movement of the material, and the control mechanism is used for controlling the operation of the lifting mechanism.

[0016] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: when the material required by the wind turbine is hoisted, the wind turbine is first stopped, the staff installs the portable hoisting machine on the top side of the passage between the guide cone and the hub, at this time the lifting ring of the portable hoisting machine can pass through the opened opening unit vertically, so as to hoist the material on the ground to the inside of the hub.

[0017] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: the shielding assembly comprises a fixed shaft arranged on the guide cone, a supporting fixed frame arranged on the fixed shaft, and a cover plate arranged on the supporting fixed frame.

[0018] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: the moving assembly comprises a containing block arranged on the supporting fixed frame, a driving motor arranged on the containing block, and a gear arranged on the driving motor.

[0019] As a preferred scheme of the wind turbine hub internal hoisting method of the present application, wherein: the guide assembly comprises a guide rail arranged on the guide cone, a gear slot arranged on the guide rail, and an auxiliary arranged on the guide rail.

[0020] As a preferred scheme of the wind turbine hub hoisting method, the sealing assembly comprises a protrusion arranged on the fairing, an air bag block arranged on the protrusion, a guide pipe arranged on the air bag block, a sealing bag arranged on the guide pipe, a touch pressure piece arranged on the containing block, and a first inclined surface arranged on the protrusion.

[0021] As a preferred scheme of the wind turbine hub hoisting method, the locking assembly comprises a sliding groove arranged on the touch pressure piece, a sliding block arranged on the sliding groove, a supporting plate arranged on the touch pressure piece, an inclined piece arranged on the supporting plate, a matching plate arranged on the protrusion, and a locking hole arranged on the matching plate.

[0022] The wind turbine hub hoisting method has the following advantages: the opening is arranged on the fairing, so that the worker can directly hoist the material into the hub through the opening, and after the hoisting is completed, the trapezoidal opening is closed by the shielding assembly, so that the external environment does not affect the hub when the fairing is normally used, thereby greatly improving the transportation efficiency and safety of the material, and when a fire occurs in the tower, the opening of the fairing can be used as an emergency escape channel, further improving the safety of the worker. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0024] Figure 1 It is a whole schematic diagram of the wind turbine hub hoisting method.

[0025] Figure 2 It is an enlarged view of A in Figure 1

[0026] Figure 3 It is an opening unit schematic diagram of the wind turbine hub hoisting method.

[0027] Figure 4 It is a sealing bag schematic diagram of the wind turbine hub hoisting method.

[0028] Figure 5 It is an L-shaped block schematic diagram of the wind turbine hub hoisting method.

[0029] Figure 6 It is a protrusion schematic diagram of the wind turbine hub hoisting method.

[0030] Figure 7 ​It is a schematic view of the inclined part of a wind turbine hub internal hoisting method. DETAILED DESCRIPTION

[0031] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0033] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0034] Thirdly, the present application is described in detail in conjunction with the schematic view, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic view is only an example, which should not limit the scope of protection of the present application herein. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0035] Embodiment 1

[0036] Reference Figure 1 For the first embodiment of the present application, the embodiment provides a wind turbine hub internal hoisting method, including the following steps:

[0037] S1: Preparing a wind turbine hub internal hoisting device, installing an openable opening unit on the fairing of the wind turbine, the opening unit is designed to accommodate the entry and exit of materials. Ensure that the sealing performance of the opening unit is good to prevent the wind from interfering with the hoisting process during the operation of the wind turbine;

[0038] S2: Transporting the portable hoisting machine, transporting the portable hoisting machine to the inside of the hub through the tower. The portable hoisting machine should be designed to be light and easy to carry, so as to facilitate the transportation of the staff inside the tower;

[0039] S3: Wind turbine shutdown, ensure that the wind turbine has been completely stopped before hoisting the material, so as to avoid safety hazards during hoisting;

[0040] S4: The portable hoist worker installs the portable hoist on the top side of the passage between the fairing and the hub. The portable hoist should be firmly installed to ensure stability during hoisting;

[0041] S5: Open the opening unit. The opening unit is operated to be in an open state so that materials can enter from the outside of the fairing into the inside;

[0042] S6: Hoist the materials. The lifting mechanism of the portable hoist is used to vertically lift the materials on the ground to the height of the opening unit. Then, the materials are horizontally moved to the designated position inside the hub through the operation of the control mechanism;

[0043] S7: Close the opening unit. After the hoisting of the materials is completed, the opening unit is closed to ensure the integrity of the fairing and the safe operation of the wind turbine;

[0044] S8: Inspection and testing. After the hoisting operation is completed, the hoisting components and the portable hoist are inspected to ensure that there is no damage or failure. Subsequently, the wind turbine is tested as necessary to confirm that the hoisting operation has not affected the normal operation of the wind turbine;

[0045] S9: Restart the wind turbine. After everything is confirmed to be normal, the wind turbine is restarted to resume its operation.

[0046] Embodiment 2

[0047] Reference Figures 1-6 For the second embodiment of the present application, the embodiment provides a hoisting method for a wind turbine hub, which is used for a wind turbine hub hoisting method, comprising a hub 100, comprising a shell 101, a hoisting assembly 102 is installed inside the shell 101, a support 103 is arranged on the shell 101, the support 103 plays a mounting role for the fairing 201, so that the fairing 201 is firmly mounted on the shell 101; an opening unit 200 is installed on the fairing 201 of the support 103, three groups of trapezoidal openings 202 are formed on the outer wall of the fairing 201, the trapezoidal openings 202 are staggered with the blade positions, and any trapezoidal opening 202 is located at the lowest side of the fairing 201 during shutdown; a shielding assembly 203 is installed on the fairing 201, which is used to cover the trapezoidal opening 202; a moving assembly 204 is installed at one end of the shielding assembly 203; a guide assembly 205 is installed on the inner wall of the fairing 201, the moving assembly 204 rotates and moves on the guide assembly 205, so as to move and open the shielding assembly 203 covering the trapezoidal opening 202; a sealing assembly 206 is installed on the inner wall of the fairing 201, which is used to seal the trapezoidal opening 202 and the shielding assembly 203; a locking assembly 207 is installed on the outer wall of the moving assembly 204, and when the shielding assembly 203 completely covers the trapezoidal opening 202, the locking assembly 207 automatically completes the locking of the shielding assembly 203.

[0048] Specifically, the shielding assembly 203 comprises a fixed shaft 203a arranged on the fairing 201, the fixed shaft 203a is provided with three groups of support frames 203b through bearings, the support frames 203b are provided with cover plates 203c, the cover plates 203c are arc trapezoidal plates, the outer arc surfaces of the cover plates 203c are attached to the inner arc surfaces of the fairing 201, and the cover plates 203c are used for completely covering and sealing the trapezoidal opening 202.

[0049] Further, the moving assembly 204 comprises a containing block 204a arranged on the support frame 203b, a driving motor 204b arranged on the containing block 204a, and a gear 204c arranged on the driving motor 204b.

[0050] Further, the guiding assembly 205 comprises a guide rail 205a arranged on the fairing 201, the guide rail 205a is designed along the inner arc surface of the fairing 201, the curvature of the guide rail 205a is arranged according to the rotation of the support frame 203b around the center of the fixed shaft 203a, so that the containing block 204a on the support frame 203b moves along the guide rail 205a, the outer wall of the guide rail 205a is provided with a gear slot 205b, the inner wall of the containing block 204a is provided with an auxiliary part 205c, and the auxiliary part 205c is attached to the side wall of the guide rail 205a.

[0051] Further, the auxiliary part 205c comprises a fixed seat 205c-1 arranged on the containing block 204a, the fixed seat 205c-1 is movably provided with an auxiliary wheel 205c-2 through a pin shaft, the outer wall of the auxiliary wheel 205c-2 is attached to the side wall of the guide rail 205a, so that the auxiliary wheel 205c-2 plays a supporting and guiding role when the containing block 204a moves.

[0052] Further, the sealing assembly 206 comprises three groups of protrusions 206a arranged on the inner arc surface of the fairing 201, the protrusions 206a are located on one side of the guide rail 205a, the inner part of the protrusions 206a is provided with an air bag block 206b, the bottom side of the air bag block 206b is provided with a guide pipe 206c, the guide pipe 206c penetrates into the inside of the fairing 201, one end of the guide pipe 206c is provided with a sealing bag 206d, the sealing bag 206d is arranged around the trapezoidal opening 202, and the sealing bag 206d is half embedded on the fairing 201, the outer wall of the containing block 204a is provided with a touch pressure part 206e, the inner wall of the protrusion 206a is provided with a first inclined surface 206f, when the first inclined surface 206f is completely matched with a second inclined surface 206e-5, the containing block 204a is positioned, the locking action of the cover plate 203c is completed, and when the touch pressure part 206e-4 applies a transverse force, the touch pressure part 206e-4 can smoothly separate from the inside of the protrusion 206a.

[0053] Further, the touch pressure piece 206e includes an L-shaped block 206e-1 installed on the outer wall of the accommodating block 204a, an internal top wall of the L-shaped block 206e-1 is installed with a fixed spring 206e-2, a bottom end of the fixed spring 206e-2 is installed with a moving plate 206e-3, a bottom of the moving plate 206e-3 is installed with a touch pressure block 206e-4, a bottom of the touch pressure block 206e-4 is provided with a second inclined surface 206e-5, the fixed spring 206e-2 extrudes the touch pressure block 206e-4 on the moving plate 206e-3 downward, when the L-shaped block 206e-1 corresponds to the convex block 206a, the second inclined surface 206e-5 of the touch pressure block 206e-4 can be extruded and temporarily received in the inside of the L-shaped block 206e-1.

[0054] The remaining structures are the same as those in Embodiment 1.

[0055] Operation process: when the staff hoists the material, the driving motor 204b drives the gear 204c to rotate on the tooth groove 205b of the guide rail 205a, the accommodating block 204a moves along the guide rail 205a, at this time, the L-shaped block 206e-1 on one side of the accommodating block 204a gradually separates from the convex block 206a, so that the air bag block 206b in the convex block 206a is no longer extruded, at this time, the air bag block 206b restores, so that the gas in the sealing bag 206d reflows into the air bag block 206b, so that the sealing between the cover plate 203c and the trapezoidal port 202 is cancelled, with the continuous rotation of the driving motor 204b, the trapezoidal port 202 gradually exposes, then the hoisting of the material can be carried out through the opened trapezoidal port 202, and after the hoisting is completed, the driving motor 204b reverses to drive the cover plate 203c to restore, when the touch pressure block 206e-4 contacts the convex block 206a, the touch pressure block 206e-4 can be temporarily received in the inside of the L-shaped block 206e-1, until the touch pressure block 206e-4 is completely located above the opening of the convex block 206a, the cover plate 203c also completely covers the trapezoidal port 202, at this time, the fixed spring 206e-2 presses the touch pressure block 206e-4 downward, so that the touch pressure block 206e-4 extrudes the air bag block 206b, the downward action of the touch pressure block 206e-4 stops until the first inclined surface 206f and the second inclined surface 206e-5 are in contact, the gas in the air bag block 206b flows into the sealing bag 206d, the sealing bag 206d bulges and is in contact with the cover plate 203c, thereby avoiding the influence of the external environment on the hub 100.

[0056] Embodiment 3

[0057] Reference Figures 5-7For the third embodiment of the present application, which is different from the above embodiments, the locking assembly 207 includes a sliding groove 207a provided on the L-shaped block 206e-1, a sliding block 207b mounted on the inner wall of the sliding groove 207a, the sliding block 207b being connected with the moving plate 206e-3 so that the sliding plate moves with the moving plate 206e-3, a support plate 207c mounted on the outer wall of the L-shaped block 206e-1, an inclined piece 207d mounted on the outer wall of the support plate 207c through a pin shaft, a matching plate 207e mounted on the outer wall of the protrusion 206a, and a locking hole 207f provided on the outer wall of the matching plate 207e. When the second inclined surface 206e-5 is in contact with the outer wall of the protrusion 206a, and the containing block 204a is restored by the driving motor 204b, the pressing block 206e-4 is pressed back to the inside of the L-shaped block 206e-1, the moving plate 206e-3 is lifted to drive the sliding block 207b to move, the sliding block 207b drives the inclined piece 207d to move, the inclined piece 207d is inclined to be vertical at this time, so that the inclined piece 207d can be smoothly moved to the side of the matching plate 207e. When the pressing block 206e-4 is located in the opening on the top side of the protrusion 206a, the fixed spring 206e-2 presses the pressing block 206e-4 downward, the moving plate 206e-3 drives the sliding block 207b to move, the sliding block 207b drives the inclined piece 207d to move downward and incline, the inclined piece 207d gradually inclines to be horizontal at this time, so that the inclined piece 207d is embedded in the locking hole 207f to complete the locking.

[0058] Specifically, the inclined piece 207d includes an inclined plate 207d-1 mounted on the support plate 207c through a pin shaft, the top end of the inclined plate 207d-1 being movably connected with the sliding block 207b, the bottom end of the inclined plate 207d-1 being provided with a clamping block 207d-3, and the outer wall of the inclined plate 207d-1 being provided with a groove 207d-2. When the sliding block 207b moves downward on the sliding groove 207a, the groove 207d-2 of the inclined plate 207d-1 slides along the pin shaft on the support plate 207c, so that the inclined plate 207d-1 inclines downward and moves to the side of the matching plate 207e. The fitting process of the first inclined surface 206f and the second inclined surface 206e-5 is also the positioning process of the clamping block 207d-3 relative to the locking hole 207f. When the first inclined surface 206f and the second inclined surface 206e-5 are completely fitted, the clamping block 207d-3 is also embedded in the locking hole 207f, so as to complete the locking of the containing block 204a.

[0059] The remaining structures are the same as those of the second embodiment.

[0060] Operation process: when the drive motor 204b drives the containing block 204a to recover, the second inclined surface 206e-5 contacts the outer wall of the convex block 206a, the pressing block 206e-4 is pressed back to the inside of the L-shaped block 206e-1, at this time the moving plate 206e-3 is lifted to drive the sliding block 207b to move, the sliding block 207b moves to drive the inclined plate 207d-1 to move, at this time the pin shaft of the supporting plate 207c limits the recess 207d-2, so that the inclined plate 207d-1 moves along the pin shaft, so that the inclined plate 207d-1 is slightly vertical, so that the inclined part 207d can smoothly move to the side of the matching plate 207e, when the pressing block 206e-4 is located in the opening on the top side of the convex block 206a, the fixed spring 206e-2 will press the pressing block 206e-4 downward, at this time the moving plate 206e-3 drives the sliding block 207b to move, the sliding block 207b moves to drive the inclined plate 207d-1 to move downward, at this time the inclined plate 207d-1 gradually becomes horizontal, so that the clamping block 207d-3 at the bottom end of the inclined plate 207d-1 is embedded in the locking hole 207f to complete the locking.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A method of hoisting within a hub of a wind turbine generator, characterized in that, The wind turbine hub internal hoisting device comprises: A hub (100) comprising a shell (101), a hoisting assembly (102) arranged on the shell (101), and a bracket (103) arranged on the shell (101); An opening unit (200) comprising a fairing (201) arranged on the bracket (103), a trapezoidal opening (202) arranged on the fairing (201), a shielding assembly (203) arranged on the fairing (201), a moving assembly (204) arranged on the shielding assembly (203), a guide assembly (205) arranged on the fairing (201), a sealing assembly (206) arranged on the fairing (201), and a locking assembly (207) arranged on the moving assembly (204); Further comprising: The wind turbine hub internal hoisting device is arranged on the wind turbine, and an openable opening unit (200) is arranged on the fairing (201) to accommodate the entry and exit of materials; The wind turbine hub internal hoisting device is arranged in the hub (100), and the portable hoisting machine is transported into the hub (100) together with the staff through the tower drum; Through the opening unit (200), the portable hoisting machine directly hoists the materials required for the operation and maintenance of the wind turbine into the hub (100); The opening of the opening unit (200) is arranged on the fairing (201) and is staggered with the blades of the hub (100), and when the wind turbine is stopped, the opening is on the lowest side of the fairing (201) to facilitate the hoisting of materials; The portable hoisting machine comprises a lifting mechanism and a control mechanism, the lifting mechanism is used for vertical and horizontal movement of the materials, and the control mechanism is used for controlling the operation of the lifting mechanism; When the materials required by the wind turbine are hoisted, the wind turbine is first stopped, the staff installs the portable hoisting machine on the top side of the passage between the fairing (201) and the hub (100), at this time the lifting ring of the portable hoisting machine can vertically pass through the opened opening unit (200), thereby hoisting the materials on the ground into the hub (100).

2. The method of hoisting within a wind turbine hub as claimed in claim 1, wherein: The shielding assembly (203) comprises a fixed shaft (203a) arranged on the fairing (201), a support fixed frame (203b) arranged on the fixed shaft (203a), and a cover plate (203c) arranged on the support fixed frame (203b).

3. The method of claim 2, wherein: The moving assembly (204) comprises a containing block (204a) arranged on the support fixed frame (203b), a drive motor (204b) arranged on the containing block (204a), and a gear (204c) arranged on the drive motor (204b).

4. The method of hoisting within a wind turbine hub as claimed in claim 3, wherein: The guide assembly (205) comprises a guide rail (205a) arranged on the fairing (201), a tooth groove (205b) arranged on the guide rail (205a), and an auxiliary part (205c) arranged on the guide rail (205a).

5. The method of hoisting within a wind turbine hub as set forth in claim 4, wherein: The sealing assembly (206) comprises a protrusion (206a) arranged on the deflector (201), an air bag block (206b) arranged on the protrusion (206a), a guide pipe (206c) arranged on the air bag block (206b), a sealing bag (206d) arranged on the guide pipe (206c), a touch pressure piece (206e) arranged on the containing block (204a), and a first inclined surface (206f) arranged on the protrusion (206a).

6. The method of hoisting within a wind turbine hub as claimed in claim 5, wherein: The locking assembly (207) comprises a sliding groove (207a) arranged on the touch pressure piece (206e), a sliding block (207b) arranged on the sliding groove (207a), a support plate (207c) arranged on the touch pressure piece (206e), an inclined piece (207d) arranged on the support plate (207c), a matching plate (207e) arranged on the protrusion (206a), and a locking hole (207f) arranged on the matching plate (207e).

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