Wind turbine maintenance platform

Abstract

The utility model relates to a kind of wind-driven generator maintenance platform, including at least one jacking frame, and the jacking frame top is connected with maintenance frame;The end of maintenance frame close to the wind turbine to be maintained is provided with positioning structure, and the positioning structure includes: locating rod, horizontal extension, close to the truss contour of wind turbine to be maintained, and the pole of contact, located the ground side of maintenance frame, the pole of contact is inclined downward and points to the truss of wind turbine to be maintained, and the end of maintenance platform close to the truss of wind turbine to be maintained is subjected to external force transmission to truss. In addition to the jacking structure, the gravity of maintenance platform can also transmit force to the truss of wind-driven generator, improve overall structural stability.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine auxiliary parts technology, and in particular to a wind turbine maintenance platform. Background Technology

[0002] A wind turbine maintenance platform is a specialized work platform installed at a specific height on the nacelle or tower. Its core function is to provide maintenance personnel with a safe and convenient space for maintenance work.

[0003] Conventional maintenance platforms mostly rely on their own strength or on a lifting structure for support, with the weight of the platform itself and the workers largely acting on the lifting structure. Furthermore, due to construction challenges, it's difficult for the lifting structure to apply force symmetrically to the maintenance platform, thus requiring both the lifting structure and the maintenance platform itself to withstand significant loads. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a wind turbine maintenance platform that uses a lifting structure instead of a hoisting structure. In addition to acting on the lifting structure, the weight of the maintenance platform can also be transferred to the wind turbine truss, thereby improving the overall structural stability.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A wind turbine maintenance platform includes at least one lifting frame, with a maintenance frame connected to the top of the lifting frame; a positioning structure is provided at the end of the maintenance frame near the wind turbine to be maintained.

[0007] The positioning structure includes:

[0008] The positioning rod extends horizontally, close to the outer contour of the truss of the wind turbine to be maintained.

[0009] An abutment rod, located on the ground-facing side of the maintenance frame, is inclined downwards towards the truss of the wind turbine to be maintained.

[0010] The external force received by the maintenance platform at the end closest to the truss of the wind turbine to be maintained is transmitted to the truss.

[0011] As a further improvement to the above technical solution:

[0012] At least one positioning rod extends from each of the two sides along the length of the maintenance platform.

[0013] The spacing between the positioning rods on the same horizontal plane is greater than the dimensions of the wind turbine truss to be maintained.

[0014] The maintenance platform has an abutment part at one end of the truss near the wind turbine to be maintained. The abutment part is a flexible part or a rigid part with a flexible layer.

[0015] The contact part is either in contact with or spaced from the truss of the fan to be maintained.

[0016] The maintenance platform is a telescopic structure, comprising a fixed section and a telescopic section; the fixed section is fixedly connected to the lifting frame, and the telescopic section is connected to the fixed section by a slide rail.

[0017] The abutment rod is rotatably connected to the telescopic section, and the end of the abutment rod away from the rotating end is flexibly connected to the telescopic section.

[0018] The fixed section is provided with a receiving cavity. The contact section is reduced in angle with the telescopic section by the contacting force at the opening of the receiving cavity until it is retracted into the receiving cavity.

[0019] Support ribs are provided between the lifting frame and the maintenance platform.

[0020] The supporting ribs adopt a pyramidal structure.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model has a compact and reasonable structure and is easy to operate. The main improvement is that an abutment rod is added to one end of the maintenance frame. The abutment rod contacts the truss, and the truss is also turned into a supporting part of the maintenance frame, so that the maintenance frame has more stress support points and higher overall stability.

[0023] In addition, this application uses a lifting frame instead of a hoisting method. The lifting frame is easy to use and has more stable force distribution. Combined with the aforementioned method of maintaining the end points of the frame against each other, it has the advantages of being more stable and having lower costs. Attached Figure Description

[0024] Figure 1 This is a front view of the maintenance framework of this utility model in use.

[0025] Figure 2 This is a perspective view of the maintenance frame of this utility model.

[0026] Figure 3 This is the main view of the maintenance frame of this utility model.

[0027] The components include: 1. Lifting frame; 2. Maintenance frame; 3. Positioning rod; 4. Abutment rod; 5. Abutment part; 6. Support rib; 7. Truss; 8. Receiving cavity;

[0028] 201. Fixed section; 202. Telescopic section; 203. Slide rail;

[0029] 401. Chain. Detailed Implementation

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] like Figures 1-3 As shown, the wind turbine maintenance platform of this embodiment includes at least one lifting frame 1, with a maintenance frame 2 connected to the top of the lifting frame 1; a positioning structure is provided at the end of the maintenance frame 2 near the wind turbine to be maintained.

[0032] The positioning structure includes:

[0033] Positioning rod 3 extends horizontally, close to the outer contour of the truss 7 of the wind turbine to be maintained.

[0034] The contact rod 4 is located on the ground-facing side of the maintenance frame 2, and it is tilted downwards towards the truss 7 of the fan to be maintained.

[0035] The external force on the maintenance platform near the end of the wind turbine truss 7 to be maintained is transmitted to the truss 7.

[0036] At least one positioning rod 3 extends from each side along the length of the maintenance platform.

[0037] The spacing between the positioning rods 3 on the same horizontal plane is greater than the size of the wind turbine truss 7 to be maintained.

[0038] The maintenance platform has an abutment part 5 at one end of the truss 7 near the wind turbine to be maintained. The abutment part 5 is a flexible part or a rigid part with a flexible layer.

[0039] The contact part 5 is in contact with or has a gap between it and the truss 7 of the fan to be maintained.

[0040] The maintenance platform is a telescopic structure, including a fixed section 201 and a telescopic section 202; the fixed section 201 is fixedly connected to the lifting frame 1, and the telescopic section 202 is connected to the fixed section 201 by a slide rail 203.

[0041] The abutment rod 4 is rotatably connected to the telescopic section 202, and the end of the abutment rod 4 away from the rotating end is flexibly connected to the telescopic section 202.

[0042] The fixed section 201 is provided with a receiving cavity. The contact section is reduced in angle with the telescopic section 202 by the contacting force at the opening of the receiving cavity until it is retracted into the receiving cavity.

[0043] A support rib 6 is provided between the lifting frame 1 and the maintenance platform.

[0044] Support rib 6 adopts a pyramidal structure.

[0045] The specific structure and working principle of this embodiment are as follows:

[0046] like Figure 1 and Figure 3As shown, taking two lifting frames 1 as an example, the lifting frame 1 can adopt the existing lifting ladder structure. The working principle and structure of the lifting frame 1 will not be described in detail in this embodiment.

[0047] A maintenance frame 2 is installed on top of the lifting frame 1. In this embodiment, the maintenance frame 2 adopts a telescopic structure, including a fixed section 201 fixed to the top of the lifting frame 1, and a telescopic section 202 telescopically connected to the inner wall of the fixed section 201. (Refer to reference...) Figure 2 The telescopic section 202 and the fixed section 201 are connected by a slide rail 203, and the telescopic section 202 can be driven by a power source such as a hydraulic cylinder.

[0048] This embodiment specifically improves the structure at the telescopic section 202, ensuring that the telescopic section 202 can transfer gravity to the truss 7 and reduce the load at the telescopic section 202.

[0049] At the top of the telescopic section 202, that is, at the end near the truss 7, there are two positioning rods 3 on each side. The function of the positioning rods 3 is to help to accurately locate the position of the truss 7.

[0050] The telescopic section 202 continues to extend forward, and the contact part 5 between the two positioning rods 3 may contact the truss 7 at the same time as the contact rod 4, or there may be a gap between the contact part 5 and the truss 7, the purpose of which is to prevent impact on the truss 7.

[0051] The abutment rod 4 is the main component that transfers the gravity of the telescopic section 202 to the truss 7. It is driven by a pivot shaft at the bottom of the telescopic section 202, which is integrally formed with the pivot shaft. For example... Figure 2 As shown, the rotating shaft in this embodiment has a large volume and is pivotally connected to the telescopic section 202 in order to bear the load to the greatest extent.

[0052] Figure 2 The maximum angle that the abutment rod 4 can rotate is the middle angle, and the minimum rotation angle is when the abutment rod 4 is flat against the telescopic section 202. A chain 401 is also connected to the bottom of the telescopic section 202. The chain 401 pulls the abutment rod 4 and controls the maximum rotation angle.

[0053] During retraction, the telescopic section 202 pulls back along with the abutment rod 4. When the abutment rod 4 touches the opening of the receiving cavity 8, the opening of the receiving cavity 8 applies a pushing force to the abutment rod 4, causing the abutment rod 4 to retract until the chain 401 is stuck at the opening of the receiving cavity. At this point, the retracted length reaches its maximum value. Since the chain 401 is located close to the end of the telescopic section 202, most of the length of the telescopic section 202 has been retracted at this point.

[0054] As an alternative implementation, a single, integrated maintenance frame 2 can be used, with the abutment rod 4 directly mounted on the maintenance frame 2 to reduce the weakening of strength caused by the sliding structure. In use, the transport vehicle directly moves the supporting frame close to the truss 7.

[0055] The advantage of this application is that by using the contact section, the load that was originally all acting on the maintenance frame 2 is transferred to the truss 7, thereby improving the service life of the equipment.

[0056] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A wind turbine maintenance platform, characterized in that: It includes at least one lifting frame (1), and a maintenance frame (2) is connected to the top of the lifting frame (1); the maintenance frame (2) has a positioning structure at one end near the fan to be maintained. The positioning structure includes: Positioning rod (3) extends horizontally, close to the outer contour of the truss (7) of the fan to be maintained. An abutment rod (4) is located on the ground-facing side of the maintenance frame (2), and the abutment rod (4) is tilted downwards towards the truss (7) of the fan to be maintained. The external force received by the maintenance platform at the end near the truss (7) of the wind turbine to be maintained is transmitted to the truss (7).

2. The wind turbine maintenance platform as described in claim 1, characterized in that: At least one positioning rod (3) extends from each of the two sides along the length of the maintenance platform.

3. The wind turbine maintenance platform as described in claim 2, characterized in that: The spacing between the positioning rods (3) on the same horizontal plane is greater than the size of the wind turbine truss (7) to be maintained.

4. The wind turbine maintenance platform as described in claim 2, characterized in that: The maintenance platform is provided with an abutment part (5) at one end of the truss (7) near the wind turbine to be maintained. The abutment part (5) is a flexible part or a rigid part with a flexible layer.

5. The wind turbine maintenance platform as described in claim 4, characterized in that: The contact part (5) is in contact with or spaced from the truss (7) of the fan to be maintained.

6. The wind turbine maintenance platform as described in claim 1, characterized in that: The maintenance platform is a telescopic structure, including a fixed section (201) and a telescopic section (202); the fixed section (201) is fixedly connected to the lifting frame (1), and the telescopic section (202) is connected to the fixed section (201) by a slide rail (203).

7. The wind turbine maintenance platform as described in claim 5, characterized in that: The abutment rod (4) is rotatably connected to the telescopic section (202), and the end of the abutment rod (4) away from the rotating end is flexibly connected to the telescopic section (202).

8. The wind turbine maintenance platform as described in claim 6, characterized in that: The fixed section (201) is provided with a receiving cavity (8). The contact section is reduced in angle with the telescopic section (202) by the contacting force of the opening of the receiving cavity until it is taken into the receiving cavity (8).

9. The wind turbine maintenance platform as described in claim 8, characterized in that: A support rib (6) is provided between the lifting frame (1) and the maintenance platform.

10. The wind turbine maintenance platform as described in claim 9, characterized in that: The supporting rib (6) adopts a pyramidal structure.

Images