A wind power generation inspection auxiliary device
By installing shielding plates and connecting components on the wind turbine nacelle, the problem of harsh external inspection environment has been solved, enabling normal inspections to be conducted without direct sunlight during strong sunlight and in inclement weather, thus improving the convenience and safety of inspections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 华能(临高)新能源有限公司
- Filing Date
- 2026-02-10
- Publication Date
- 2026-07-10
AI Technical Summary
During wind turbine inspections, the external inspection of the nacelle requires prolonged exposure to sunlight, resulting in a harsh inspection environment.
Design a wind power generation inspection auxiliary device, including a nacelle, a shield, a connecting component, and an inspection channel. The shield can be raised to avoid direct sunlight when needed, and inspection personnel can move between the shield and the nacelle. In severe weather, inspection personnel can climb out directly from the inspection channel to carry out inspections. The support plate can be used separately to provide support and shielding.
The improved working environment for inspection personnel ensured the smooth operation of inspections and enhanced their convenience and safety.
Smart Images

Figure CN122359253A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an auxiliary device for wind power generation inspection, belonging to the field of power generation equipment inspection technology. Background Technology
[0002] During wind turbine inspection, inspectors need to climb into the nacelle to inspect the equipment inside. They also need to climb outside the nacelle to inspect the fan's rotation status and other equipment located outside the nacelle. However, conventional nacelle inspections are subject to prolonged exposure to the sun, resulting in a harsh inspection environment and thus posing certain challenges. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to provide a wind power generation inspection auxiliary device, which solves the problem that conventional external inspection of the nacelle requires long-term exposure to the sun, resulting in a harsh inspection environment.
[0004] The technical problem to be solved by this invention is achieved by the following technical solution: a wind power generation inspection auxiliary device, comprising: The cabin is hollow inside, forming equipment cavities. A shield is installed on the top of the cabin. The connecting assembly is located between the cabin and the shielding. The inspection passage runs vertically through the cabin and shielding. A cover plate is installed on the shielding plate to block the inspection passage. The connecting component is connected to the shielding plate and is used to vertically support the shielding plate.
[0005] By adopting the above technical solution, a shield is installed above the engine compartment. When the shield is not in use, it fits tightly against the engine compartment. When the external wind is weak and the sunlight is strong during inspections, the shield can be raised by the connecting components, allowing the inspection personnel to conduct inspections between the shield and the engine compartment. This avoids direct sunlight on the inspection personnel and optimizes their working environment. When the external weather is bad and the shield cannot be raised, the inspection personnel can also climb out from the inspection passage and walk on the shield to carry out normal inspections, ensuring the normal progress of the inspections.
[0006] The present invention is further configured such that the connecting component includes: The support plate extends through the engine compartment and shield at one end into the equipment cavity, while the other end of the support plate is detachably and fixedly connected to the shield. The ventilation ducts are horizontally installed on the support plate, with several ducts arranged side by side on the support plate. The limiting channel is horizontally installed at the end of the support plate facing the shield. A limiting structure is installed inside the baffle plate to restrict the relative movement between the baffle plate and the support plate.
[0007] The present invention is further configured such that the limiting structure includes: The recovery chamber is located inside the baffle plate on the side opposite to the limiting channel. A limiting block is slidably disposed within the recovery chamber, with its end extending into the limiting channel. A limiting spring is installed inside the recovery chamber. One end of the limiting spring is fixed to the end of the limiting block away from the limiting channel, and the other end of the limiting spring is fixed to the inner wall of the recovery chamber. The triggering part is located inside the baffle plate. The triggering part is used to pull the limiting block back into the recovery chamber and remove it from the limiting channel.
[0008] By adopting the above technical solution, when the end of the limiting block is inserted into the limiting channel, pushing the support plate upwards can detach the shield from the cabin and raise it. At this time, the inspection personnel can move between the shield and the cabin. When the end of the limiting block is pulled out from the limiting channel, pushing the support plate upwards only raises the support plate alone. At this time, the limiting channel moves to the side of the shield away from the cabin. When the inspection personnel walk on the shield, the safety rope can be directly suspended on the part of the support plate where the limiting channel is opened. At the same time, the inspection equipment can be temporarily leaned against the support plate, which further improves the convenience of the inspection personnel. In addition, the raised support plate can shield the inspection personnel, prevent the inspection personnel from falling from the cabin, and ensure the safety of the inspection personnel.
[0009] The present invention is further configured such that: the triggering part includes: Inflatable blocks are fixed to the side of the shield away from the cabin. The air pressure chamber, located inside the inflatable block, extends along the axial direction of the inflatable block through the side of the air pressure chamber facing the cabin, passing through the baffle plate. The air delivery tube is connected at one end to the air pressure chamber. The sliding assembly is located inside the air pressure chamber. The air pressure unit is located inside the baffle plate and connected to the end of the air duct away from the air pressure chamber. The sliding assembly is used to change the air pressure inside the air pressure chamber, and the air pressure assembly drives the limit block to move through the air pressure change.
[0010] The present invention is further configured such that: the sliding group includes: The guide groove is formed on the inner wall of the air pressure chamber and extends along the axial direction of the air block. The bolt mating hole is located on the inner wall of the equipment cavity on the side facing the baffle plate. The bolt mating hole penetrates the engine compartment and communicates with the air pressure chamber. A sliding plate is slidably disposed within the pressure chamber, with a portion of the sliding plate extending into the guide groove. The connections between the sliding plate and both the guide groove and the pressure chamber are sealed. The bolt fitting hole contains a bolt component, the end of which is inserted into the air pressure chamber and threadedly connected to the air pressure chamber.
[0011] The present invention is further configured such that: the air pressure assembly includes: The pressure chamber is located inside the baffle plate and penetrates the baffle plate in one direction only. The sealing mesh plate is fixed at the opening through which the pressure chamber passes through the baffle plate. The pressure block is slidably disposed within the pressure chamber, and the connection between the pressure block and the inner wall of the pressure chamber is sealed. One end of the pressure spring is fixed to the sealing mesh plate, and the other end of the pressure spring is fixed to the pressure block. One end of the pull rope is fixed to the side of the pressure block away from the pressure spring, and the other end of the pull rope extends into the recovery chamber and is fixed to the limit block. The sliding direction of the pressure block is the same as that of the pressure spring and the elastic force. The air guide tube is connected to the pressure chamber and the connection point is located on the side of the pressure block away from the pressure spring.
[0012] By adopting the above technical solution, when the bolt is inserted into the bolt hole, the sliding plate moves towards the inflatable block as the bolt is screwed in, thereby increasing the air pressure in the part of the air chamber located in the inflatable block. Due to the connection of the air guide pipe, the air pressure in the pressure chamber increases, thus pressing the pressure block towards the sealing mesh plate. The pressure spring is compressed, and at this time the pull rope tightens and pulls the limiting block out of the limiting channel, thereby releasing the fixation between the support plate and the sealing plate. At this time, the support plate can move independently. When the bolt is pulled out from the bolt hole, the sliding plate returns to its original position under the action of the pressure difference on both sides. At this time, the air pressure in the pressure chamber decreases, and the pressure spring pushes the pressure block to return to its original position under the action of elasticity, thereby allowing the pull rope to move independently. In the relaxed state, the limiting block tends to move towards the limiting channel under the action of the limiting spring. When the limiting channel is aligned with the recovery chamber, the end of the limiting block is reinserted into the limiting channel. At this time, the support plate and the baffle plate are fixed to each other and can move synchronously. Since the entire device is controlled only by the insertion and removal of bolts, the operation difficulty of the auxiliary equipment is reduced. At the same time, when the bolts are not removed from the bolt mating holes, the baffle plate cannot be detached from the cabin, and only the support plate moves independently. This can avoid the situation where the baffle plate is still in an active state after the baffle plate and the support plate are independent of each other, and prevent the baffle plate from moving when the inspection personnel use the support plate, which helps to further ensure the safety of the inspection personnel.
[0013] The invention is further configured such that: one end of the support plate extending into the equipment cavity is horizontally bent toward the inspection channel, and the bent end of the support plate is provided with a plurality of connecting holes, and the inner wall of the equipment cavity toward the shielding plate is provided with a plurality of threaded holes aligned with the connecting holes.
[0014] By adopting the above technical solution, when the support plate and the shield plate move independently of each other, the inspection personnel first push the support plate up in the equipment cavity and fix it by passing the bolt fastener through the connecting hole and the threaded hole, so that the support plate is in a stable state. Then, they climb out through the inspection channel to the top of the cabin. At this time, the safety rope or carried equipment can be tied to the support plate. The inspection personnel do not need to operate the support plate on the top of the cabin, which improves the convenience of using the support plate.
[0015] The beneficial effects of this invention are as follows: By installing a shield above the engine compartment, which fits tightly against the engine compartment when not in use, the shield can be raised by connecting components when encountering conditions of low wind speed and strong sunlight during inspections. This allows inspection personnel to conduct inspections between the shield and the engine compartment, preventing them from being exposed to direct sunlight and optimizing their working environment. When the weather is bad and the shield cannot be raised, inspection personnel can also climb out directly from the inspection passage and then walk on the shield to conduct normal inspections, ensuring the smooth progress of the inspections. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure when the shield is disconnected from the cabin in this invention; Figure 3 This is a schematic diagram of the structure of the support plate when it rises in this invention; Figure 4 This is a partial structural cross-sectional view of the present invention; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 This is a partial structural cross-sectional view of the limiting structure in this invention; Figure 7 This is a partial structural cross-sectional view of the air pressure unit in this invention.
[0017] In the diagram: 10. Engine compartment; 11. Equipment cavity; 12. Baffle plate; 15. Support plate; 16. Ventilation duct; 17. Limiting channel; 18. Sealing cover plate; 19. Inspection channel; 20. Connecting hole; 21. Bolt mating hole; 22. Inflatable block; 23. Air duct; 24. Guide groove; 25. Sliding plate; 26. Air pressure chamber; 27. Recovery chamber; 28. Limiting block; 29. Limiting spring; 30. Pull rope; 31. Pressure chamber; 32. Pressure block; 33. Pressure spring; 34. Sealing mesh plate. Detailed Implementation
[0018] To facilitate a clear understanding of the technical means, creative features, objectives, and effects of this invention, the invention will be further described below in conjunction with specific illustrations.
[0019] like Figure 1-4 As shown, a wind power generation inspection auxiliary device includes a nacelle 10, a shielding plate 12, a sealing cover 18, an inspection channel 19, and a connecting assembly. The nacelle 10 is hollow, forming an equipment cavity 11. The shielding plate 12 is located on top of the nacelle 10. The connecting assembly is located between the nacelle 10 and the shielding plate 12, connecting to the shielding plate 12 and providing vertical support for the shielding plate 12 after it is disconnected from the nacelle 10. The inspection channel 19 vertically penetrates the nacelle 10 and the shielding plate 12. The sealing cover 18 is located on the shielding plate 12 and seals the inspection channel 19. like Figure 4 As shown, the connecting assembly includes a support plate 15, a ventilation channel 16, a limiting channel 17, and a limiting structure. One end of the support plate 15 extends through the cabin 10 and the baffle plate 12 into the equipment cavity 11, and the other end of the support plate 15 is detachably and fixedly connected to the baffle plate 12. The ventilation channel 16 is horizontally opened through the support plate 15, and several ventilation channels 16 are arranged side by side on the support plate 15. The limiting channel 17 is horizontally opened through the end of the support plate 15 facing the baffle plate 12. The limiting structure is disposed in the baffle plate 12, and the limiting structure restricts the relative movement of the baffle plate 12 and the support plate 15 by inserting into the limiting channel 17. The end of the support plate 15 extending into the equipment cavity 11 is horizontally bent towards the inspection channel 19, and several connecting holes 20 are opened through the bent end of the support plate 15. Several threaded holes aligned with the connecting holes 20 are opened on the inner wall of the equipment cavity 11 facing the baffle plate 12.
[0020] like Figure 4-6As shown, the limiting structure includes a retrieval chamber 27, a limiting block 28, a limiting spring 29, and a triggering part. The retrieval chamber 27 is opened within the baffle plate 12 and is disposed opposite to the limiting channel 17. The limiting block 28 is slidably disposed within the retrieval chamber 27, with its end extending into the limiting channel 17. The limiting spring 29 is disposed within the retrieval chamber 27, with one end fixed to the end of the limiting block 28 away from the limiting channel 17, and the other end fixed to the inner wall of the retrieval chamber 27. The limiting spring 29 always applies a force to the limiting block 28 in the direction of the limiting channel 17. The triggering part is disposed within the baffle plate 12 and is used to pull the limiting block 28 back into the retrieval chamber 27 and remove it from the limiting channel 17.
[0021] like Figure 5 As shown, the triggering unit includes an inflatable block 22, an air guide pipe 23, a pressure chamber 26, a sliding assembly, and a pressure assembly. The inflatable block 22 is fixed to the side of the baffle plate 12 away from the cabin 10. The pressure chamber 26 is located inside the inflatable block 22, and the side of the pressure chamber 26 facing the cabin 10 passes through the baffle plate 12 along the axial direction of the inflatable block 22. One end of the air guide pipe 23 is connected to the pressure chamber 26. The sliding assembly is located inside the pressure chamber 26 and is used to change the air pressure inside the pressure chamber 26. The pressure assembly is located inside the baffle plate 12 and is connected to the end of the air guide pipe 23 away from the pressure chamber 26. The pressure assembly drives the limit block 28 to move through the air pressure change.
[0022] like Figure 5-7 As shown, the sliding assembly includes a bolt mating hole 21, a guide groove 24, and a sliding plate 25. The guide groove 24 is formed on the inner wall of the air pressure chamber 26 and extends axially along the inflation block 22. The bolt mating hole 21 is formed on the inner wall of the equipment cavity 11 facing the baffle plate 12. The bolt mating hole 21 penetrates the engine compartment 10 and communicates with the air pressure chamber 26. A bolt is provided in the bolt mating hole 21, and the end of the bolt is inserted into the air pressure chamber 26 and threadedly connected to the air pressure chamber 26. The sliding plate 25 is slidably disposed in the air pressure chamber 26, and part of the sliding plate 25 extends into the guide groove 24. The connection between the sliding plate 25 and the guide groove 24 and the air pressure chamber 26 is sealed. The pneumatic assembly includes a pull rope 30, a pressure chamber 31, a pressure block 32, a pressure spring 33, and a sealing mesh plate 34. The pressure chamber 31 is located inside the baffle plate 12 and passes through the baffle plate 12 in one direction. The sealing mesh plate 34 is fixed at the opening of the pressure chamber 31 that passes through the baffle plate 12. The pressure block 32 is slidably disposed inside the pressure chamber 31. The connection between the pressure block 32 and the inner wall of the pressure chamber 31 is sealed. One end of the pressure spring 33 is fixed to the sealing mesh plate 34, and the other end of the pressure spring 33 is fixed to the pressure block 32. One end of the pull rope 30 is fixed to the side of the pressure block 32 away from the pressure spring 33, and the other end of the pull rope 30 extends into the recovery chamber 27 and is fixed to the limiting block 28. The sliding direction of the pressure block 32 is the same as the direction of the pressure spring 33 and the elastic force. The air guide tube 23 is connected to the pressure chamber 31, and the connection point is located on the side of the pressure block 32 away from the pressure spring 33.
[0023] When the support plate 15 and the shield plate 12 move independently, the inspection personnel first push the support plate 15 up in the equipment cavity 11 and fix it through the bolt fastener through the connecting hole 20 and the threaded hole to make the support plate 15 stable. Then, they climb out through the inspection channel 19 to the top of the cabin 10. At this time, the safety rope or carried equipment can be tied to the support plate 15. The inspection personnel do not need to operate the support plate 15 on the top of the cabin 10, which improves the ease of use of the support plate 15.
[0024] By installing a shield 12 above the cabin 10, which fits tightly against the cabin 10 when not in use, the shield 12 can be raised by connecting components when there is little wind and strong sunlight during inspections. This allows the inspection personnel to conduct inspections between the shield 12 and the cabin 10, preventing them from being exposed to direct sunlight and optimizing their working environment. When the weather is bad and the shield 12 cannot be raised, the inspection personnel can climb out directly from the inspection passage 19 and walk on the shield 12 to conduct normal inspections, ensuring the smooth progress of the inspections.
[0025] When the end of the limiting block 28 is inserted into the limiting channel 17, pushing the support plate 15 upward will cause the shield 12 to detach from the cabin 10 and rise. At this time, the inspection personnel can move between the shield 12 and the cabin 10. When the end of the limiting block 28 is pulled out from the limiting channel 17, pushing the support plate 15 upward will cause only the support plate 15 to rise. At this time, the limiting channel 17 will move to the side of the shield 12 away from the cabin 10. When the inspection personnel walk on the shield 12, the safety rope can be directly suspended on the part of the support plate 15 where the limiting channel 17 is opened. At the same time, the inspection equipment can be temporarily leaned against the support plate 15, which further improves the convenience of the inspection personnel. In addition, the raised support plate 15 can shield the inspection personnel and prevent them from falling from the cabin 10, thus ensuring the safety of the inspection personnel.
[0026] When the bolt is inserted into the bolt hole 21, the sliding plate 25 moves toward the inflation block 22 as the bolt is screwed in, thereby increasing the air pressure in the air chamber 26 located in the inflation block 22. Due to the connection of the air guide pipe 23, the air pressure in the pressure chamber 31 increases, thus pressing the pressure block 32 toward the sealing mesh plate 34. The pressure spring 33 is compressed, and the pull rope 30 tightens and pulls the limiting block 28 out of the limiting channel 17, thereby releasing the fixation between the support plate 15 and the shielding plate 12. At this time, the support plate 15 can move independently. When the bolt is pulled out from the bolt hole 21, the sliding plate 25 returns to its original position under the action of the pressure difference on both sides. At this time, the air pressure in the pressure chamber 31 decreases, and the pressure spring 33 pushes the pressure block 32 to return to its original position under the action of elasticity, thereby relaxing the pull rope 30. In the current state, the limiting block 28 tends to move towards the limiting channel 17 under the action of the limiting spring 29. When the limiting channel 17 is aligned with the recovery chamber 27, the end of the limiting block 28 is reinserted into the limiting channel 17. At this time, the support plate 15 and the baffle plate 12 are fixed to each other and can move synchronously. Since the entire device is controlled only by the insertion and removal of bolts, the operation difficulty of the auxiliary equipment is reduced. At the same time, when the bolts are not removed from the bolt mating hole 21, the baffle plate 12 cannot be separated from the cabin 10, and only the support plate 15 moves independently. This can avoid the situation where the baffle plate 12 is still in an active state after the baffle plate 12 and the support plate 15 are independent of each other, and avoid the situation where the baffle plate 12 moves when the inspection personnel use the support plate 15, which is conducive to further ensuring the safety of the inspection personnel.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of the invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A wind power generation inspection auxiliary device, characterized in that: include: The cabin (10) is hollow inside and forms an equipment cavity (11). A shield (12) is installed on top of the cabin (10). The connecting assembly is located between the cabin (10) and the shield (12). The inspection passage (19) vertically runs through the cabin (10) and the shielding panel (12). A cover plate (18) is installed on the shield plate (12) and blocks the inspection passage (19). The connecting component is connected to the shielding plate (12), and the connecting component is used to vertically support the shielding plate (12).
2. The wind power generation inspection auxiliary equipment according to claim 1, characterized in that: The connection components include: A support plate (15) extends through the cabin (10) and the shield (12) into the equipment cavity (11) at one end, and the other end of the support plate (15) is detachably and fixedly connected to the shield (12). Ventilation channels (16) are horizontally opened through the support plate (15), and several ventilation channels (16) are arranged side by side on the support plate (15). The limiting channel (17) is horizontally opened at one end of the support plate (15) facing the shield plate (12). A limiting structure is provided inside the shielding plate (12) to limit the relative movement of the shielding plate (12) and the support plate (15).
3. The wind power generation inspection auxiliary equipment according to claim 2, characterized in that: The limiting structure includes: The recovery chamber (27) is located inside the baffle plate (12) and on the side opposite to the limiting channel (17). The limiting block (28) is slidably disposed within the recovery chamber (27), with the end of the limiting block (28) extending into the limiting channel (17). A limiting spring (29) is installed inside the recovery chamber (27). One end of the limiting spring (29) is fixed to the end of the limiting block (28) away from the limiting channel (17), and the other end of the limiting spring (29) is fixed to the inner wall of the recovery chamber (27). The triggering part is located inside the baffle plate (12). The triggering part is used to pull the limiting block (28) back into the recovery chamber (27) and remove it from the limiting channel (17).
4. The wind power generation inspection auxiliary equipment according to claim 3, characterized in that: The trigger unit includes: An inflatable block (22) is fixed to the side of the shield (12) away from the cabin (10). The air pressure chamber (26) is located inside the inflatable block (22). The side of the air pressure chamber (26) facing the cabin (10) extends through the baffle plate (12) along the axial direction of the inflatable block (22). The air delivery tube (23) is connected at one end to the air pressure chamber (26). The sliding assembly is located inside the air pressure chamber (26). The air pressure assembly is located inside the baffle plate (12) and connected to the end of the air duct (23) away from the air pressure chamber (26). Among them, the sliding group is used to change the air pressure inside the air pressure chamber (26), and the air pressure group drives the limit block (28) to move through the air pressure change.
5. The wind power generation inspection auxiliary equipment according to claim 4, characterized in that: The sliding group includes: The guide groove (24) is formed on the inner wall of the air pressure chamber (26) and extends along the axial direction of the air block (22). A bolt hole (21) is provided on the inner wall of the equipment cavity (11) facing the baffle plate (12). The bolt hole (21) penetrates the engine compartment (10) and communicates with the air pressure chamber (26). A sliding plate (25) is slidably disposed within the air pressure chamber (26). Part of the sliding plate (25) extends into the guide groove (24). The connection points of the sliding plate (25) with the guide groove (24) and the air pressure chamber (26) are sealed respectively. Among them, a bolt is provided in the bolt mating hole (21), and the end of the bolt is inserted into the air pressure chamber (26) and threadedly connected to the air pressure chamber (26).
6. The wind power generation inspection auxiliary equipment according to claim 4, characterized in that: The air pressure group includes: The pressure chamber (31) is located inside the baffle plate (12) and extends through the baffle plate (12) in one direction. The sealing mesh plate (34) is fixed at the opening of the pressure chamber (31) through the baffle plate (12). The pressure block (32) is slidably disposed within the pressure chamber (31), and the connection between the pressure block (32) and the inner wall of the pressure chamber (31) is sealed. One end of the pressure spring (33) is fixed to the sealing mesh plate (34), and the other end of the pressure spring (33) is fixed to the pressure block (32). One end of the pull rope (30) is fixed to the side of the pressure block (32) away from the pressure spring (33), and the other end of the pull rope (30) extends into the recovery chamber (27) and is fixed to the limiting block (28). The sliding direction of the pressure block (32) is the same as that of the pressure spring (33) and the elastic force direction. The air guide tube (23) is connected to the pressure chamber (31) and the connection point is located on the side of the pressure block (32) away from the pressure spring (33).
7. The wind power generation inspection auxiliary equipment according to claim 1, characterized in that: The support plate (15) extends into the equipment cavity (11) and is bent horizontally toward the inspection channel (19). Several connecting holes (20) are opened through the bent end of the support plate (15). Several threaded holes aligned with the connecting holes (20) are opened on the inner wall of the equipment cavity (11) toward the shield plate (12).