A blade maintenance device

Abstract

The application discloses a kind of blade maintenance devices, function room is fixedly installed on the top of wind turbine generator set;Mobile mechanism includes outer skeleton and inner skeleton, inner skeleton is driven on outer skeleton lateral movement cooperation by lateral movement device, outer skeleton outside is equipped with rolling wheel, and rolling wheel is used in the tower sidewall of wind turbine generator set Rolling cooperation;Shaft is arranged in function room, and worm and gear assembly is arranged in function room;Realize the self-locking of safety rope by worm and gear to form worm and gear assembly, and safety rope is used to protect the safety of maintenance personnel.The position of maintenance personnel is adjusted by mobile mechanism, and the position of inner skeleton is adjusted relative to outer skeleton when blade maintenance device is used, so that the standing position of maintenance personnel can be adjusted, so that the distance between blade and tower cylinder is adjusted with the change of height to follow the relative position of maintenance personnel, the distance between maintenance personnel and blade is kept unchanged, and the adjusting effect is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind turbine blade maintenance of wind turbine generator unit, in particular to a blade maintenance device. BACKGROUND

[0002] The blade is a main component with an aerodynamic shape to make the wind wheel rotate around its shaft. As one of the most important components of the wind turbine generator unit, the blade directly affects the power generation efficiency of the wind turbine generator unit. With the increase of the operation time of the blade, many quality problems will occur, and the blade usually needs to be regularly inspected and maintained.

[0003] When the maintenance personnel maintain the wind power blade, the safety rope is generally used for fixation, and the wind power blade is repaired through the lifting of the safety rope. Since the diameter of the tower cylinder changes at different heights, the higher the height, the smaller the diameter of the tower cylinder, and the wind turbine blade is in a vertical state during maintenance, but the distance from the blade to the tower cylinder changes with the height, and the safety rope can only rely on the adjustment of the worker himself, which consumes the physical energy of the maintenance personnel and has safety hazards such as loss of strength. In addition, the fixation of the safety rope needs to rely on the user's own grasp, and there is a possibility of unstable fixation. SUMMARY

[0004] The purpose of the present application is to provide a blade maintenance device to solve the problem of relying on the adjustment of the worker himself, consuming the physical energy of the maintenance personnel, and the distance from the blade to the tower cylinder changing with the height.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] A blade maintenance device, comprising:

[0007] A function room is fixedly installed on the top of the wind turbine generator unit;

[0008] A moving mechanism, comprising an outer skeleton and an inner skeleton, the inner skeleton is driven to move transversely on the outer skeleton by a transverse moving device, a rolling wheel is installed on the outer side of the outer skeleton, and the rolling wheel is used for rolling cooperation on the sidewall of the tower of the wind turbine generator unit;

[0009] A rotating shaft is arranged in the function room, a worm and gear assembly is arranged in the function room, the rotating shaft is driven to rotate by the worm and gear assembly and realizes self-locking of the rotating shaft;

[0010] A safety rope is connected with the rotating shaft and the moving mechanism at both ends.

[0011] Preferably, the worm and gear assembly comprises a worm and a gear that mesh with each other, and the worm extends to the outside of the function room at one end and is connected with a handle.

[0012] Preferably, the worm wheel is coaxially connected with a bevel gear through a rotating shaft, the rotating shaft is coaxially connected with a secondary bevel gear, and the bevel gear is engaged with the secondary bevel gear.

[0013] Preferably, the top edge of the wind turbine generator is provided with a guardrail in a closed loop structure, and the functional room is surrounded by the guardrail.

[0014] Preferably, the transverse moving device comprises a worm member, a worm wheel member, a lower groove body arranged in the inside of the outer exoskeleton, an upper groove body arranged in the inside of the inner endoskeleton, a toothed protrusion fixed in the lower groove body, the worm member arranged in the upper groove body, the worm wheel member engaged with the worm member and the toothed protrusion, the worm wheel member rotationally connected to a sliding member, the sliding member in sliding fit with the outer exoskeleton, a connecting member rotationally connected to the outside of the worm wheel structure, and a sliding block fixedly connected to the outside of the connecting member.

[0015] Compared with the prior art, the application has the following beneficial effects:

[0016] The worm and the worm wheel are used to form a worm wheel and worm assembly to realize self-locking of the safety rope, and the safety rope is used to protect the safety of the maintenance personnel.

[0017] The position of the maintenance personnel is adjusted by the moving mechanism, and when the blade maintenance device is used, the inner endoskeleton can adjust the position relative to the outer exoskeleton, so that the standing position of the maintenance personnel is adjustable, the distance between the blade and the tower drum is adjusted to follow the relative position of the maintenance personnel when the height changes, the distance between the maintenance personnel and the blade is kept unchanged, and the adjustment is completed. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a schematic view of the worm wheel and worm assembly and the rotating shaft cooperation structure in the functional room of the application;

[0020] Figure 2 It is a structural schematic view of the application;

[0021] Figure 3 It is a structural schematic view of the functional room of the application;

[0022] Figure 4 It is a structural schematic view of the moving mechanism of the application;

[0023] Figure 5 It is a sectional view of the moving mechanism of the application;

[0024] Figure 6 Figure 1 is a schematic view of the upper and lower groove structure of the present application.

[0025] 1, fan; 2, guardrail; 3, function room; 4, moving mechanism; 5, handle; 6, worm; 7, fixator; 8, worm gear; 9, rotating shaft; 10, bevel gear; 11, secondary bevel gear; 12, rotating shaft; 13, outer frame; 14, inner frame; 15, baffle; 16, worm structure; 17, secondary worm structure; 18, power box; 19, telescopic rod; 20, rolling wheel; 21, toothed protrusion; 22, worm gear part; 23, connecting piece; 24, sliding block. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0027] As shown in Figures 1-6 Embodiment one

[0028] The function room 3 is fixed on the top wall of the wind turbine generator, and the guardrail 2 is installed on the edge of the top wall of the wind turbine generator to ensure the safety of the worker standing on the top wall of the wind turbine generator.

[0029] The handle 5 is rotationally connected to the outside of the function room 3, the tail end of the handle 5 is fixedly connected with the worm 6, the fixator 7 is fixed inside the function room 3, the worm 6 is rotationally connected to the side wall of the fixator 7, the worm 6 and the worm gear 8 are engaged to form a worm gear assembly, the rotating shaft 9 is also rotationally connected inside the function room 3, the rotating shaft 9 is coaxially fixedly connected with the worm gear 8 to form an integrated body, the bevel gear 10 is fixedly connected to the outside of the rotating shaft 9, the rotating shaft 12 and the secondary bevel gear 11 are rotationally connected to the side wall of the fixator 7, the rotating shaft 12 and the secondary bevel gear 11 are coaxially connected to form an integrated body, and the bevel gear 10 is engaged with the secondary bevel gear 11.

[0030] Therefore, the user A stands on the top wall of the wind turbine generator and rotates the handle 5 (or drives the worm 6 to rotate through the motor), the handle 5 drives the worm 6 to rotate, the worm 6 rotates to drive the rotating shaft 9 to rotate through the engaged worm gear 8, and the rotating shaft 9 rotates to drive the rotating shaft 12 to rotate through the engaged bevel gear 10 and the secondary bevel gear 11.

[0031] One end of the safety rope is fixed to the outer wall of the rotating shaft 12, so that the rotation of the rotating shaft 12 can realize the winding and releasing of the safety rope; at the same time, the worm gear assembly has a self-locking function, so as to improve the safety of the safety rope.

[0032]

[0033] ​The other end of the safety rope is connected with the outer frame 13, the inner frame 14 is linearly slidably connected with the outer frame 13, and the outer frame 13 is provided with a rolling wheel 20 on one side through an adjustable telescopic rod 19, the rolling wheel 20 is linearly slidably connected with the outer frame 13, and the rolling wheel 20 rolls on the side wall of the tower of the wind turbine, so that the outer frame 13 is guided to vertically ascend and descend.

[0034] The power box 18 provides power for the lateral moving device, the lateral moving device can adopt an electric telescopic rod or a telescopic oil cylinder, and the lateral moving device drives the inner frame 14 to linearly move on the outer frame 13, so that the relative position is adjusted.

[0035] Since the diameter of the tower cylinder changes at different heights, the diameter of the tower cylinder is smaller at a higher height, and the wind turbine blade is in a vertical state during maintenance, so that the distance between the blade and the tower cylinder changes with the height.

[0036] Therefore, the user B stands on the upper surface of the inner frame 14, and the relative horizontal position of the inner frame 14 is adjusted during height adjustment, so that the relative position of the user B in the vertical direction with the inner frame 14 remains unchanged.

[0037] Embodiment two:

[0038] Further based on the embodiment one, the lateral moving device comprises a worm member (worm structure 16 and / or auxiliary worm structure 17), a worm wheel member 22, a lower groove body formed on the upper surface of the outer frame 13, and an upper groove body formed on the lower surface of the inner frame 14, the lower groove body is fixedly provided with a toothed protrusion 21, one end of the worm member is rotatably connected with the side wall of the outer frame 13 and connected with the motor, the worm member is arranged in the upper groove body, the left end of the worm wheel member 22 is engaged with the worm member, the right end of the worm wheel member 22 is engaged with the toothed protrusion 21, and the worm wheel member 22 is rotatably connected with a sliding member (the sliding member is composed of a connecting member 23 and a sliding block 24, the worm wheel member 22 is rotatably connected with the connecting member 23, and the sliding block 24 is linearly slidably connected with the outer frame 13).

[0039] The outer surface of the inner frame 14 is fixedly connected with a baffle 15.

[0040] Working principle: the internal power supply of the power box 18 provides power for the rotation of the motor, the motor drives the worm member (worm structure 16 and / or auxiliary worm structure 17) to rotate, the rotation of the worm member drives the worm wheel member 22 to rotate, when the worm wheel member 22 rotates, the toothed protrusion 21 below the worm wheel member 22 and engaged with the worm wheel member 22 supports the worm wheel member 22, so that the worm wheel member 22 drives the connecting member 23, the sliding block 24 and the inner frame 14 and other structures to start moving, the position of the inner frame 14 relative to the outer frame 13 is adjusted, and then the position of the maintenance personnel relative to the blade is adjusted, so that the adjustment is completed.

[0041] In the description of the specification, reference to "one embodiment", "an example", "a specific example" or the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example", "a specific example" or the like in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of the application disclosed above are only to help explain the application. The preferred embodiments do not describe all the details of the application and limit the application to the specific embodiments described. Obviously, many modifications and variations can be made in light of the contents of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A blade maintenance device, characterized by: The utility model relates to a wind turbine maintenance device, including: a function room (3) fixedly installed on the top of a wind turbine (1); a moving mechanism (4) including an outer skeleton (13) and an inner skeleton (14), the inner skeleton (14) being driven to move laterally on the outer skeleton (13) by lateral movement device cooperation, the outer skeleton (13) being provided with rolling wheels (20) on the outside, the rolling wheels (20) being used for rolling cooperation on the tower sidewall of the wind turbine (1); a rotating shaft (12) provided in the function room (3), the function room (3) being provided with a worm and gear assembly, the rotating shaft (12) being driven to rotate and realizing self-locking of the rotating shaft (12) by the worm and gear assembly; a safety rope, the safety rope being connected with the rotating shaft (12) and the moving mechanism (4) at both ends respectively; the worm and gear assembly includes a worm (6) and a worm wheel (8) meshing with each other, one end of the worm (6) extending to the outside of the function room (3) and being connected with a handle (5); the worm wheel (8) is coaxially connected with a bevel gear (10) through a rotating shaft (9), the rotating shaft (12) is coaxially connected with a secondary bevel gear (11), and the bevel gear (10) is meshed with the secondary bevel gear (11); the lateral movement device includes a worm piece, a worm wheel piece (22), a lower groove body provided inside the outer skeleton (13), and an upper groove body provided inside the inner skeleton (14), the lower groove body being fixedly provided with a toothed protrusion (21), the worm piece being provided in the upper groove body, the worm wheel piece (22) being meshed with the worm piece and the worm wheel piece (22) being meshed with the toothed protrusion (21), the worm wheel piece (22) being rotatably connected with a sliding piece, the sliding piece being slidingly matched with the outer skeleton (13), the outer part of the worm wheel piece (22) being rotatably connected with a connecting piece (23), and the outer part of the connecting piece (23) being fixedly connected with a sliding block (24).

2. A blade maintenance device according to claim 1, characterised in that: The top edge of the wind turbine (1) is provided with a guardrail (2) of closed loop structure, and the function room (3) is surrounded by the guardrail (2).

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