Anti-falling linkage protection equipment for wind turbine generator
By installing fall protection devices at the hoisting opening of the wind turbine, the safety hook status is detected and the cover is opened when the hook is correctly engaged, thus solving the safety hazards in hoisting operations and achieving efficient safety protection.
Patent Information
- Application Number
- CN202520116818.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Existing safety protection measures for wind turbine hoisting openings have problems such as heavy and difficult-to-wear safety belts, lack of sturdy components near the hoisting opening, or difficulty in detaching or attaching components, resulting in significant safety hazards during hoisting operations.
A wind turbine anti-fall linkage protection device was designed, including an anti-fall operation box, an audible and visual device, a cover locking device, and an electrical control system. By detecting the hook status of the safety hook, it ensures that the lifting port cover only opens when the safety hook is correctly engaged, thus preventing falls from heights.
It improves the safety of hoisting operations, ensuring that the hoisting port cover only opens when the safety hook is correctly engaged, thus preventing falls from heights. It is also compact in structure, easy to use, and inexpensive.
Smart Images
Figure CN223562975U_ABST
Abstract
Description
Technical Field
[0001] A wind turbine fall protection linkage device is disclosed. This utility model belongs to the field of wind turbine fall protection technology, specifically relating to the field of wind turbine fall protection linkage technology. Background Technology
[0002] Domestically, mainstream wind turbine nacelle hoisting ports are generally divided into "internal nacelle hoisting ports" and "external nacelle hoisting ports" (such as...). Figure 6 The hoisting operation requires workers to operate near the hoisting opening. After the hoisting opening's cover is opened, there is a drop of nearly 100 meters below, and the workers operate right near the opening. Their safety measures consist primarily of the safety hooks on their safety harnesses (such as...). Figure 7 The current method uses "double safety hooks attached to a sturdy structure" as the sole fall protection measure, which lacks redundancy. This method has significant drawbacks, such as workers not wearing safety belts (including double safety hooks) during hoisting operations due to their weight, the lack of sturdy structures near the hoisting opening, difficulties in attaching or detaching sturdy structures, and the inconvenience of using short double safety hooks. These issues are common, making the area near the hoisting opening the biggest "safety hazard" on the wind turbine. This invention can solve these problems. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a wind turbine anti-fall linkage protection device, thereby solving the problem that there is currently no corresponding anti-fall device in the market during the hoisting operation of the motor base.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A wind turbine anti-fall linkage protection device includes a motor base installed above the hoisting port inside the wind turbine and a hoisting port cover plate inside the wind turbine to cover the hoisting port. An anti-fall operation box for fixing hooks is installed on the side of the motor base. An audible and visual device is also installed on the side of the motor base. A cover plate locking device is provided above the hoisting port cover plate to prevent accidental opening. A start / stop button is installed on the side of the anti-fall operation box. An anti-touch structure is installed on the side of the anti-fall operation box to prevent accidental reset of the start / stop button. An electrical control box is also installed on the side of the motor base.
[0006] As a preferred embodiment of this utility model, the motor base includes a mounting shell for installation, a motor is installed inside the mounting shell, a fixing plate is provided at the bottom of the fall protection operation box, the fixing plate is fixed to the side of the mounting shell, and the output shaft of the motor passes through and extends into the interior of the fall protection operation box and is connected to a load-bearing shaft through a coupling.
[0007] As a preferred embodiment of this utility model, the side of the load-bearing shaft is provided with a groove for use as a hanging hook, the side of the fixing plate is provided with a support ring at the position where the load-bearing shaft and the motor output shaft intersect, the side of the fixing plate is provided with a protective shell to cover the load-bearing shaft, the side of the protective shell is provided with an opening at the position corresponding to the groove, the load-bearing shaft passes through and extends to the outside of the protective shell and is connected to an indicator needle, and a push switch is provided inside the groove at the position corresponding to the direction of the indicator needle.
[0008] As a preferred technical solution of this utility model, the start / stop button is configured as an emergency stop button switch, and a fixing hole is provided on the side of the anti-fall operation box at the position of the emergency stop button switch. The emergency stop button switch is configured to be pressed inward to close, and at this time the emergency stop button switch is completely inside the fixing hole. The stop button switch is configured to be pulled outward to open, and at this time the end of the stop button switch is outside the fixing hole.
[0009] As a preferred technical solution of this utility model, the anti-touch structure includes sliding grooves opened above and below the start / stop button. A sliding rod is slidably installed inside the sliding groove. An installation hole is opened inside the sliding rod. The bottom end of the installation hole is connected to the inside of the sliding groove by a spring. The side of the sliding rod is set outside the anti-fall operation box and connected to a baffle. The rear side of the baffle is tangent to the outer side of the anti-fall operation box. A horizontal plate is installed on the surface of the baffle away from the anti-fall operation box.
[0010] As a preferred embodiment of this utility model, the cover plate locking device includes an installation plate installed above the hoisting port inside the wind turbine unit. An electromagnet capable of adsorbing and fixing the hoisting port cover plate is installed inside the installation plate. The electromagnet is connected to the electrical control box via a cable.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: It mainly consists of a fall-prevention operation box and a cover locking device, with a compact structure, convenient use, low manufacturing cost, and easy installation; when there is no hoisting operation, the cover locking device locks the hoisting opening. The fall-prevention operation box detects whether the worker has hooked the double hooks. When it is detected that the double hooks have been correctly hooked, the cover locking device opens, and hoisting operation can be carried out. This design can completely ensure the safety of workers when performing hoisting operations at the hoisting opening and prevent workers from falling from heights, thus having extremely strong safety. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0013] Figure 2This is a three-dimensional rear structure schematic diagram of the present invention;
[0014] Figure 3 This is a schematic diagram of the first cross-sectional structure of the present invention;
[0015] Figure 4 This is a schematic diagram of the second cross-sectional structure of the present invention;
[0016] Figure 5 This is a partial enlarged view of end A1 of this utility model;
[0017] Figure 6 A schematic diagram of the current in-cabin hoisting ports and "out-of-cabin hoisting ports";
[0018] Figure 7 The current safety protection measures for staff are illustrated in the diagram of the safety hooks on the seat belts;
[0019] 1-Motor base; 11-Mounting shell; 12-Motor; 13-Fixing plate; 2-Fall-proof operating box; 21-Bearing shaft; 22-Groove; 23-Support ring; 24-Protective shell; 25-Opening; 26-Indicator needle; 27-Push switch; 3-Sound and light device; 4-Lifting port cover; 5-Cover locking device; 51-Mounting plate; 52-Electromagnet; 53-Cable; 6-Anti-touch structure; 63-Slide groove; 64-Sliding rod; 65-Mounting hole; 66-Spring; 67-Baffle; 68-Horizontal plate; 7-Electrical control box; 8-Start / stop button; 81-Fixing hole; 82-Emergency stop button switch. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-5 This utility model provides a technical solution:
[0022] A wind turbine anti-fall linkage protection device includes a motor base 1 installed above the hoisting port inside the wind turbine and a hoisting port cover 4 inside the wind turbine covering the hoisting port. An anti-fall operation box 2 for fixing the hook is installed on the side of the motor base 1. An audible and visual device 3 is also installed on the side of the motor base 1. A cover locking device 5 is provided above the hoisting port cover 4 to prevent it from being opened accidentally. A start / stop button 8 is installed on the side of the anti-fall operation box 2. An anti-touch structure 6 is installed on the side of the anti-fall operation box 2 to prevent the start / stop button 8 from being reset accidentally. An electrical control box 7 is also installed on the side of the motor base 1.
[0023] The fall arrestor control box 2 is the core equipment of the entire set of equipment. It is used to detect the safety double hook detachment and provides power to the sound and light device 3 and the cover plate locking device 5. The sound and light device 3 provides an alarm reminder, and the cover plate locking device 5 is used to lock the lifting port cover plate 4.
[0024] The motor base 1 includes a mounting housing 11 for installation. A motor 12 is installed inside the mounting housing 11. A fixing plate 13 is provided at the bottom of the fall arrestor control box 2. The fixing plate 13 is fixed to the side of the mounting housing 11. The output shaft of the motor 12 passes through and extends into the interior of the fall arrestor control box 2 and is connected to a load-bearing shaft 21 through a coupling. This allows the load-bearing shaft 21 to rotate through the operation of the motor 12, so that the hook fitted on the load-bearing shaft 21 can contact the push switch 27. This allows the hook to move downward by pulling the safety rope, applying pressure to the push switch 27. This sends a signal to the control box 7, which then controls the operation of the electromagnet 52 and opens the lifting port cover 4. This allows workers to operate through the lifting port, ensuring that the lifting port cover 4 can only be opened when the safety hook is on the load-bearing shaft 21 and the push switch 27 is pressed, thus preventing the safety hook from being missed.
[0025] The side of the load-bearing shaft 21 is provided with a groove 22 for hanging hooks. A support ring 23 is installed on the side of the fixing plate 13 at the position where the load-bearing shaft 21 intersects with the output shaft of the motor 12, which ensures the installation stability of the load-bearing shaft 21. A protective shell 24 is installed on the side of the fixing plate 13 to cover the load-bearing shaft 21. An opening 25 is provided on the side of the protective shell 24 at the position corresponding to the groove 22, which facilitates the installation of the safety hook through the opening 25. The load-bearing shaft 21 passes through and extends to the outside of the protective shell 24 and is connected to an indicator needle 26. A push switch 27 is installed inside the groove 22 at the position corresponding to the direction pointed by the indicator needle 26, which makes it easy for the operator to observe the position of the push switch 27. The safety hook is installed inside the groove 22, which can prevent it from sliding.
[0026] The start / stop button 8 is structured as an emergency stop button switch 82, and a fixing hole 81 is provided on the side of the fall arrestor 2 at the position of the emergency stop button switch 82. The emergency stop button switch 82 is set to be pressed inward to close, and at this time the emergency stop button switch 82 is completely inside the fixing hole 81. The stop button switch 82 is set to be pulled outward to open, and at this time the end of the stop button switch 82 is outside the fixing hole 81. Thus, when the emergency stop button switch 82 is opened, it is pulled outward. At this time, the control box 7 receives information and causes the motor 12 to work, thereby causing the push switch 27 to move from bottom to top. This makes it easy for people below to pull the rope to drive the safety hook downward, thereby applying pressure to the push switch 27.
[0027] The anti-touch structure 6 includes grooves 63 located above and below the start / stop button 8. A sliding rod 64 is slidably mounted inside the grooves 63. A mounting hole 65 is provided inside the sliding rod 64. The bottom end of the mounting hole 65 is connected to the inside of the groove 63 by a spring 66. The side of the sliding rod 64 is located outside the fall-prevention control box 2 and is connected to a baffle 67. The rear side of the baffle 67 is tangent to the outer side of the fall-prevention control box 2. A horizontal plate 68 is mounted on the surface of the baffle 67 away from the fall-prevention control box 2. This allows the baffle 67 to be moved laterally to expose the emergency stop button 82 when it needs to be activated. Then pull it outwards. At this time, the baffle 67 is released. Under the action of the spring 66, the baffle 67 returns to its original position. Since the end of the stop button switch 82 is outside the fixing hole 81, the baffle 67 will be in close contact with the side of the emergency stop button switch 82, thus pressing it to prevent the emergency stop button switch 82 from being accidentally closed. After the emergency stop button switch 82 is closed, the control box 7 makes the motor 12 work. At this time, the push switch 27 moves from top to bottom. Since the push switch 27 is no longer under pressure, the control box 7 will lock the electromagnet 52, thus preventing the lifting port cover 4 from being accidentally opened.
[0028] The cover plate locking device 5 includes a mounting plate 51 installed above the hoisting port inside the wind turbine. An electromagnet 52 is installed inside the mounting plate 51 to attract and fix the hoisting port cover plate 4. The electromagnet 52 is connected to the electrical control box 7 via a cable 53, which facilitates the fixing of the hoisting port cover plate 4 and prevents it from being opened accidentally.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A kind of wind turbine anti-falling linkage protection equipment, including the motor seat (1) being installed in the hoisting port above the wind turbine inside and the hoisting port cover plate (4) being covered to the hoisting port inside the wind turbine, it is characterized by: The side of the motor base (1) is provided with a falling prevention operation box (2) for fixing the hook, and the side of the motor base (1) is also provided with a sound and light device (3), the position above the hoisting cover plate (4) is provided with a cover locking device (5) for preventing accidental opening, the side of the falling prevention operation box (2) is provided with a start-stop button (8), the side of the falling prevention operation box (2) is provided with a touch prevention structure (6) for preventing accidental reset of the start-stop button (8), and the side of the motor base (1) is also provided with an electric control box (7).
2. A wind turbine generator anti-falling linkage protection device according to claim 1, characterized in that: The motor base (1) comprises a mounting shell (11) for mounting, the inside of the mounting shell (11) is provided with a motor (12), the bottom end of the falling prevention operation box (2) is provided with a fixing plate (13), the fixing plate (13) is fixed to the side of the mounting shell (11), and the output shaft of the motor (12) penetrates and extends into the inside of the falling prevention operation box (2) and is connected with a load-bearing shaft (21) through a shaft coupling.
3. A wind turbine generator anti-falling linkage protection device according to claim 2, characterized in that: The side of the load-bearing shaft (21) is provided with a groove (22) for suspending the hook, the side of the fixing plate (13) is provided with a support ring (23) corresponding to the position where the load-bearing shaft (21) intersects with the output shaft of the motor (12), the side of the fixing plate (13) is provided with a protection shell (24) covering the load-bearing shaft (21), the side of the protection shell (24) is provided with an opening (25) corresponding to the position of the groove (22), the load-bearing shaft (21) penetrates and extends to the outside of the protection shell (24) and is connected with an indicating needle (26), and the inside of the groove (22) is provided with a press switch (27) corresponding to the position of the indicating needle (26) on one side.
4. A wind turbine generator anti-falling linkage protection device according to claim 1, characterized in that: The structure of the start-stop button (8) is an emergency stop button switch (82), and the side of the falling prevention operation box (2) is provided with a fixing hole (81) corresponding to the position of the emergency stop button switch (82), the emergency stop button switch (82) is arranged to be pressed inward to be closed, and at this time the emergency stop button switch (82) is completely inside the fixing hole (81), and the emergency stop button switch (82) is arranged to be pulled outward to be opened, and at this time the end of the emergency stop button switch (82) is outside the fixing hole (81).
5. A wind turbine generator anti-falling linkage protection device according to claim 1, characterized in that: The touch prevention structure (6) comprises a sliding groove (63) provided above and below the start-stop button (8), a sliding rod (64) is slidably arranged in the sliding groove (63), an installation hole (65) is formed in the inside of the sliding rod (64), the bottom end of the installation hole (65) and the inside of the sliding groove (63) are connected through a spring (66), the side of the sliding rod (64) is arranged outside the falling prevention operation box (2) and connected with a baffle (67), the rear side of the baffle (67) is arranged tangentially to the outside of the falling prevention operation box (2), and a horizontal plate (68) is arranged on the surface of the baffle (67) away from the falling prevention operation box (2).
6. A wind turbine generator anti-falling linkage protection device according to claim 1, characterized in that: The cover locking device (5) comprises a mounting plate (51) mounted above a hoisting opening in the interior of the wind turbine, an electromagnet (52) capable of adsorbing and fixing the hoisting opening cover (4) is mounted in the interior of the mounting plate (51), and the electromagnet (52) is connected with the electric control box (7) through a cable (53).