Adjustable platform for maintaining wind power blade

Abstract

The utility model discloses an adjustable platform for maintenance of a wind power blade, relates to the technical field of maintenance platforms, and aims to solve the problem that an existing maintenance platform cannot be adjusted, the adjustable platform comprises two supporting tables and an adjusting mechanism, and the two supporting tables are symmetrically arranged relative to the adjusting mechanism; the ends, close to the adjusting mechanism, of the supporting tables are arranged to be arc-shaped, the other ends of the supporting tables are arranged to be linear, and the arc-shaped ends of the two supporting tables are both connected with the adjusting mechanism so that the opening and closing angles of the two supporting tables can be adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of maintenance platforms, specifically to an adjustable platform for wind turbine blade maintenance. Background Technology

[0002] Most maintenance work on wind turbines requires personnel to travel to high altitudes on a platform. To facilitate blade maintenance, current technology uses a ring-shaped or similar hollow structure as the platform, effectively mounting it on the blade. However, wind turbines from different companies and regions have varying dimensions, making most current platforms insufficient for comprehensive compatibility. Performing maintenance work requires manufacturing multiple platforms of different specifications for different blades, which obviously increases costs excessively. Utility Model Content

[0003] To address the aforementioned problem of the non-adjustable nature of existing maintenance platforms, this invention proposes an adjustable platform for wind turbine blade maintenance. The platform comprises two support platforms and an adjustment mechanism. The two support platforms are symmetrically arranged about the adjustment mechanism. One end of each support platform near the adjustment mechanism is arc-shaped, while the other end is straight. The arc-shaped ends of both support platforms are connected to the adjustment mechanism to adjust the opening angle of the two support platforms.

[0004] The present invention is further configured as follows: the adjusting mechanism includes a fixed frame and two movable frames, both of which are U-shaped; the two movable frames are symmetrically arranged about the fixed frame; the fixed frame includes a vertically arranged fixed rod and a movable rod, and a horizontally arranged crossbar; one end of the fixed rod is fixedly connected to the crossbar, and a lead screw is rotatably connected to the end of the crossbar away from the fixed rod; the movable rod is threadedly connected to the lead screw; one vertical rod of the movable frame is rotatably connected to the fixed rod, and a connecting frame is rotatably connected to the other vertical rod of the movable frame; the end of the connecting frame away from the movable frame is rotatably connected to the movable rod; the two support platforms are respectively fixedly connected to the two movable frames.

[0005] A further feature of this invention is that the two vertical rods of the movable frame and the arc-shaped ends of the support platform are all provided with ear plates for connecting the support platform and the movable frame.

[0006] This utility model also proposes an adjustable platform for wind turbine blade maintenance, which includes an arc-shaped platform and two straight platforms. The two ends of the arc-shaped platform are respectively connected to the straight platforms through adjustment mechanisms to adjust the opening and closing angle of the straight platforms.

[0007] A further feature of this invention is that both the fixed frame and the movable frame are U-shaped, with the movable frame positioned on the side of the fixed frame facing away from the arc-shaped platform. The fixed frame includes a vertically arranged fixed rod and a movable rod, as well as a horizontally arranged crossbar. One end of the fixed rod is fixedly connected to the crossbar, and a lead screw is rotatably connected to the end of the crossbar facing away from the fixed rod. The movable rod is threadedly connected to the lead screw. One vertical rod of the movable frame is rotatably connected to the fixed rod, and a connecting frame is rotatably connected to the other vertical rod of the movable frame. The end of the connecting frame facing away from the movable frame is rotatably connected to the movable rod. One end of the linear platform is fixedly connected to the movable frame.

[0008] A further feature of this invention is that ear plates are provided on both vertical rods of the movable frame and at the end of the linear stage near the adjustment mechanism for connecting the linear stage to the movable frame.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. By setting an adjustment mechanism, the opening and closing angles of the two support platforms can be adjusted, thereby enabling the maintenance platform to adapt to blades of different specifications and making it more versatile.

[0011] 2. By setting two adjustment mechanisms, the range of opening and closing angles can be increased, further enhancing the platform's adaptability. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of Embodiment 1 is shown.

[0013] Figure 2 A magnified view of a portion at point A is shown.

[0014] Figure 3 An exploded view of Example 1 is shown.

[0015] Figure 4 A state diagram of Embodiment 1 when it is open is shown.

[0016] Figure 5 A schematic diagram of the adjustment mechanism in Embodiment 1 is shown.

[0017] Figure 6 A schematic diagram of the structure of Embodiment 2 is shown.

[0018] Figure 7 A magnified view of point B is shown.

[0019] Figure 8 A diagram showing the state when Example 2 is opened is provided.

[0020] Reference numerals in the attached drawings: 1. Support platform; 2. Adjustment mechanism; 21. Fixed frame; 211. Fixed rod; 212. Movable rod; 213. Crossbar; 2131. Lead screw; 22. Movable frame; 23. Connecting frame; 3. Ear plate; 4. Arc-shaped platform; 5. Linear platform. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] Example 1

[0023] This utility model proposes an adjustable platform for wind turbine blade maintenance, comprising two support platforms 1 and an adjustment mechanism 2. The two support platforms 1 are symmetrically arranged about the adjustment mechanism 2. The end of each support platform 1 near the adjustment mechanism 2 is arc-shaped, and its arc is a quarter circle. The arc-shaped ends of the two support platforms 1 can together form a semi-circle. The end of each support platform 1 away from the adjustment mechanism 2 is straight, and in the closed state, the ends of the two support platforms 1 away from the adjustment mechanism 2 are abutted against each other. The arc-shaped ends of the support platforms 1 are connected to the adjustment mechanism 2 for adjusting the opening and closing angle of the two support platforms 1. Figure 4 This is the state diagram when the two support platforms are open.

[0024] The adjustment mechanism 2 includes a fixed frame 21 and two movable frames 22, wherein both the fixed frame 21 and the movable frames are U-shaped. The two movable frames 22 are symmetrically arranged about the fixed frame 21.

[0025] The fixed frame 21 includes a vertically arranged fixed rod 211 and a movable rod 212, and a horizontally arranged crossbar 213. The bottom end of the fixed rod 211 is welded to one end of the crossbar 213. The end of the crossbar 213 away from the fixed rod 211 is rotatably connected to a lead screw 2131. The lead screw 2131 is coaxial with the crossbar 213. The movable rod 212 is threadedly connected to the lead screw 2131, that is, rotating the lead screw 2131 can drive the movable rod 212 to move along the direction of the lead screw 2131.

[0026] One vertical rod of the movable frame 22 is rotatably connected to the fixed rod 211 via a pin. A connecting frame 23 is rotatably connected to the other vertical rod of the movable frame 22 via a pin. The end of the connecting frame 23 facing away from the movable frame 22 is rotatably connected to the movable rod 212 via a pin. That is, when the movable rod 212 moves along the direction of the lead screw 2131, it can drive the movable frame 22 to rotate around the fixed rod 211 via the connecting frame 23. The arc-shaped sections of the two support platforms 1 are fixedly connected to the two movable frames 22 respectively.

[0027] The two vertical rods of the movable frame 22 are each welded with ear plates 3 for connection. The arc-shaped end of the support platform 1 is also welded with ear plates 3. The ear plates 3 on the support platform 1 are correspondingly set with the ear plates 3 on the movable frame 22. The ear plates 3 are provided with through holes. The bolts are passed through the through holes on the two ear plates 3 at the same time. With the nuts, the two support platforms 1 and the movable frame 22 can be fixed.

[0028] It should be noted that the support platform 1 includes a base plate and a guardrail frame. The guardrail frame consists of horizontal bars and multiple U-shaped frames, and the base plate is welded to the U-shaped frames. A base plate is also welded to the horizontal bar 213, and the height of the base plate on the horizontal bar 213 needs to be higher than the base plate of the support platform 1 to avoid interference when adjusting the opening and closing angle of the support platform 1.

[0029] It should also be noted that the platform needs to be used in conjunction with a hoist and requires at least four slings. Two slings are connected to each of the two support platforms 1, and the connection points of the four slings to the support platforms 1 are distributed in a rectangular pattern to ensure the stability of the support platforms 1 and to prevent tilting caused by the straight ends of the support platforms 1 not being connected to any support points.

[0030] In summary, this embodiment, by setting the adjustment mechanism 2, can adjust the opening and closing angle of the two support platforms 1, thereby enabling the maintenance platform to adapt to blades of different specifications and making it more versatile.

[0031] Example 2

[0032] This embodiment proposes an adjustable platform for wind turbine blade maintenance, including an arc-shaped platform 4 and two linear platforms 5. The arc-shaped platform 4 is semi-circular, and its two ends are connected to the two linear platforms 5 via adjustment mechanisms 2 to adjust the opening and closing angles of the two linear platforms 5. (Reference) Figure 8 This is the state diagram when the two linear platforms are open.

[0033] The adjustment mechanism 2 includes a fixed frame 21 and a movable frame 22, both of which are U-shaped. The movable frame 22 is located on the side of the fixed frame 21 facing away from the arc-shaped platform 4. The fixed frame 21 includes a vertically arranged fixed rod 211 and a movable rod 212, and a horizontally arranged crossbar 213, both of which are welded to the arc-shaped platform 4. The bottom end of the fixed rod 211 is fixedly connected to one end of the crossbar 213. The end of the crossbar 213 facing away from the fixed rod 211 is rotatably connected to a lead screw 2131. The movable rod 212 is threaded onto the lead screw 2131. Rotating the lead screw 2131 drives the movable rod 212 to move.

[0034] One of the vertical rods of the movable frame 22 is rotatably connected to the fixed rod 211 by a pin. The other vertical rod of the movable frame 22 is rotatably connected to the connecting frame 23 by a pin. The end of the connecting frame 23 away from the movable frame 22 is rotatably connected to the movable rod 212 by a pin. The end of the linear platform 5 close to the movable frame 22 is fixedly connected to the movable frame 22.

[0035] The two vertical rods of the movable frame 22 are each welded with ear plates 3 for connection. One end of the linear platform 5 is also welded with an ear plate 3. The ear plates 3 on the linear platform 5 are correspondingly set with the ear plates 3 on the movable frame 22. The ear plates 3 are provided with through holes. The bolts are passed through the through holes on the two ear plates 3 at the same time. With the nuts, the linear platform 5 and the movable frame 22 can be fixed.

[0036] It should be noted that both the curved platform 4 and the straight platform 5 include a base plate and a guardrail frame. The guardrail frame consists of horizontal rails and multiple U-shaped frames, with the base plate welded to the U-shaped frames. A base plate is also welded to the horizontal bar 213, and the height of the base plate on the horizontal bar 213 needs to be lower than the base plate of the support platform 1 to avoid interference when adjusting the opening and closing angle of the straight platform 5.

[0037] It should also be noted that the platform needs to be used in conjunction with a hoist and requires at least three slings. One sling is connected to each of the two straight platforms 5, and one sling is connected to the curved platform 4. The connection points of the three slings with the straight platforms 5 and the curved platform 4 are distributed in an equilateral triangle to ensure the stability of the support platform 1 and to avoid the problem of tilting due to the lack of any support points at the straight end of the support platform 1.

[0038] In summary, by incorporating two adjustment mechanisms 2, this embodiment enables a wider range of opening and closing angles, further enhancing the platform's adaptability.

[0039] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0040] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0043] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An adjustable platform for wind turbine blade maintenance, characterized in that: It includes two support platforms (1) and an adjustment mechanism (2). The two support platforms (1) are symmetrically arranged about the adjustment mechanism (2). One end of the support platform (1) near the adjustment mechanism (2) is set as an arc shape, and the other end of the support platform (1) is set as a straight line. The arc-shaped ends of the two support platforms (1) are connected to the adjustment mechanism (2) to adjust the opening and closing angle of the two support platforms (1).

2. The adjustable platform for wind turbine blade maintenance according to claim 1, characterized in that: The adjustment mechanism (2) includes a fixed frame (21) and two movable frames (22), both of which are U-shaped. The two movable frames (22) are symmetrically arranged about the fixed frame (21). The fixed frame (21) includes a vertically arranged fixed rod (211) and a movable rod (212), and a horizontally arranged crossbar (213). One end of the fixed rod (211) is fixedly connected to one end of the crossbar (213). The end of the crossbar (213) facing away from the fixed rod (211) is rotatably connected to a lead screw (2131). The movable rod (212) is threadedly connected to the lead screw (2131). One of the vertical rods of the movable frame (22) is rotatably connected to the fixed rod (211). A connecting frame (23) is rotatably connected to the other vertical rod of the movable frame (22). The end of the connecting frame (23) facing away from the movable frame (22) is rotatably connected to the movable rod (212). The two support platforms (1) are fixedly connected to the two movable frames (22) respectively.

3. The adjustable platform for wind turbine blade maintenance according to claim 2, characterized in that: The two vertical rods of the movable frame (22) and the arc-shaped ends of the support platform (1) are all provided with ear plates (3) for connecting the support platform (1) and the movable frame (22).

4. An adjustable platform for wind turbine blade maintenance, characterized in that: It includes an arc-shaped platform (4) and two straight platforms (5). The two ends of the arc-shaped platform (4) are connected to the straight platforms (5) through adjustment mechanisms (2) to adjust the opening and closing angle of the straight platforms (5).

5. The adjustable platform for wind turbine blade maintenance according to claim 4, characterized in that: The adjustment mechanism (2) includes a fixed frame (21) and a movable frame (22). Both the fixed frame (21) and the movable frame (22) are U-shaped. The movable frame (22) is located on the side of the fixed frame (21) away from the arc-shaped platform (4). The fixed frame (21) includes a vertically arranged fixed rod (211) and a movable rod (212), and a horizontally arranged crossbar (213). One end of the fixed rod (211) is fixedly connected to one end of the crossbar (213), and the crossbar (213) is fixedly connected to the other end of the fixed rod (211). A lead screw (2131) is rotatably connected to one end of the fixed rod (211), the movable rod (212) is threadedly connected to the lead screw (2131), one vertical rod of the movable frame (22) is rotatably connected to the fixed rod (211), a connecting frame (23) is rotatably connected to the other vertical rod of the movable frame (22), one end of the connecting frame (23) away from the movable frame (22) is rotatably connected to the movable rod (212), and one end of the linear platform (5) is fixedly connected to the movable frame (22).

6. The adjustable platform for wind turbine blade maintenance according to claim 5, characterized in that: The two vertical rods of the movable frame (22) and the end of the linear platform (5) near the adjustment mechanism (2) are provided with ear plates (3) for connecting the linear platform (5) and the movable frame (22).

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