Anti-falling locking protection system for object lifting hole of wind turbine generator
By combining a double-opening cover plate with an electronic lock at the hoisting hole of the wind turbine, real-time monitoring and management of the safety rope and anchor are achieved, solving the risk of falls from heights caused by the lack of multiple locking mechanisms at the hoisting hole, and improving safety and management efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-24
AI Technical Summary
The lack of multiple locking mechanisms in the hoisting holes of wind turbines can easily lead to falls from heights if not operated properly, threatening the safety of workers.
Design a locking protection system that includes a double-opening cover plate, electronic lock, safety rope, and anchor. The electronic lock controls the opening and closing of the cover plate, ensuring that the cover plate is only allowed to be opened after the safety rope is connected to the anchor. Combined with electronic sensors and alarms, the status of the safety rope is monitored in real time, thereby increasing safety management measures.
It effectively reduces the risk of workers falling, improves the safety and management level of hoisting hole operation, and ensures the correct use of safety ropes and safety belts through the cooperation of electronic locks and sensors, reducing the danger caused by operational errors.
Smart Images
Figure CN224032706U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of wind power generation, especially to a wind turbine hoist hole anti-falling locking protection system. BACKGROUND
[0002] With the adjustment of national energy structure, the installed capacity of wind power generation is also increasing. In order to continuously and stably supply clean energy, safety is the basis and prerequisite of all work. As a frequently opened and closed device, the wind turbine hoist hole is an important danger source of the wind turbine, which always threatens the safety of the staff.
[0003] At present, the wind turbine hoist hole is generally divided into an outer hoist and an inner hoist. The outer hoist hole cover plate is generally near the tail of the nacelle, and the inner hoist hole cover plate is on the yaw platform. The work carried out here is complex and arduous, and the structure of the hoist hole cover plate itself is extremely simple. A piece of iron plate is fixed by two lock buckles. The structure is simple, and the hoist hole guardrail adopts a hinge type plane rotating structure or a chain protection. Before the staff hoists, the staff needs to hang one end of the double-hook safety rope to the reliable anchor above the hoist hole cover plate, and then pull up the hoist hole cover plate to carry out hoisting work. If the operator does not hang the double-hook safety rope and directly opens the hoist hole for operation, it is easy to cause high-falling accidents and personal injuries and deaths.
[0004] In the prior art, although the hoist hole has a guardrail, it lacks a multiple locking mechanism, and improper operation can easily cause high-falling accidents. Therefore, it is necessary to develop a wind turbine hoist hole anti-falling locking protection system. CONTENT OF THE UTILITY MODEL
[0005] The utility model solves the technical problem of providing a wind turbine hoist hole anti-falling locking protection system, which effectively overcomes the defects of the prior art.
[0006] The technical solution of the utility model for solving the above technical problem is as follows:
[0007] A wind turbine hoist hole anti-falling locking protection system, comprising a double-opening cover plate hinged at the wind turbine hoist hole, a safety belt, and a safety rope. The double-opening cover plate comprises two plate bodies, which are hinged on opposite sides of the wind turbine hoist hole, respectively. The two plate bodies can be flipped to each other to close the wind turbine hoist hole, or flipped to open. An electronic lock is arranged on the upper part of one side of the two plate bodies, and the two plate bodies are locked by the electronic lock after being closed. The anchor is arranged in the nacelle of the wind turbine. One end of the safety rope is detachably connected with the safety belt, and the other end is detachably connected with the anchor. The electronic lock is electrically connected with the controller.
[0008] On the basis of the above technical solution, the utility model can also be improved as follows.
[0009] Further, the electronic lock is an electromagnetic lock.
[0010] Further, the controller is a PLC controller.
[0011] Further, the anchor includes a hanging ring and an anchoring rod connected to one side of the hanging ring.
[0012] Further, the other end of the safety rope is provided with a hook, and the hook is connected to the hanging ring.
[0013] Further, an electronic sensor is arranged at the position where the inside of the hanging ring is connected to the anchoring rod, and the electronic sensor is connected to the controller and used for sensing whether the hook hooks the hanging ring.
[0014] Further, an alarm is further included, and the alarm is electrically connected to the controller, and the alarm is arranged near the wind turbine hoist hole.
[0015] Further, a background control terminal is further included, and the controller is network-connected to the background control terminal.
[0016] Further, a monitoring device is further included, and the monitoring device is arranged above the nacelle of the wind turbine and is network-connected to the background control terminal.
[0017] Further, the electronic sensor is a proximity switch.
[0018] The wind turbine hoist hole anti-falling locking protection system has the advantages that the structure is simple and reasonable, the safety of worker operation can be enhanced by cooperation of the electronic lock and the safety rope and the anchor, and the falling risk is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 FIG. 1 is a structural schematic view of a cover plate in a wind turbine hoist hole anti-falling locking protection system according to the present application;
[0020] Figure 2 FIG. 2 is a structural schematic view of an anchor in a wind turbine hoist hole anti-falling locking protection system according to the present application;
[0021] Figure 3 FIG. 3 is a connection block diagram of electrical components in a wind turbine hoist hole anti-falling locking protection system according to the present application.
[0022] In the drawings, the components represented by the numbers are listed as follows:
[0023] 11, plate body; 12, electronic lock; 13, hanging ring; 14, electronic sensor; 131, anchoring rod. DETAILED DESCRIPTION
[0024] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model and not to limit the scope of the utility model.
[0025] Embodiment
[0026] As Figure 1 , 2 shown, the wind turbine hoist hole anti-falling locking protection system of the embodiment includes a double-opening cover plate hinged at the wind turbine hoist hole, a safety belt, a safety rope, and an anchoring piece. The double-opening cover plate includes two plate bodies 11, which are respectively hinged at opposite sides of the wind turbine hoist hole and can be flipped to close the wind turbine hoist hole or be flipped to open. An electronic lock 12 is arranged at the upper part of one side of the two plate bodies 11 and is locked after the two plate bodies 11 are closed. The anchoring piece is arranged in the nacelle of the wind turbine. One end of the safety rope is detachably connected with the safety belt, and the other end is detachably connected with the anchoring piece. The electronic lock 12 is electrically connected with a controller.
[0027] The wind turbine hoist hole anti-falling locking protection system of the embodiment is used as follows:
[0028] When the staff is working on the wind turbine, the safety belt should be worn and the safety rope should be connected before hoisting. The anchoring piece is arranged in the nacelle (external hoist) or on the tower base of the tower yaw platform (internal hoist). The installation point should be at a certain height (high hanging low use) and above the double-opening cover plate. Then, the other end of the safety rope is connected with the anchoring piece. In the initial state, the electronic lock 12 is in the locked state. After the other end of the safety rope is connected with the anchoring piece, the permission can be applied or the electronic lock 12 can be unlocked through specific logic control. This mechanism ensures that the safety rope and the safety belt are assembled and connected before the double-opening cover plate is opened for work. The overall structure is simple and reasonable, and the falling risk is effectively reduced.
[0029] In the embodiment, the electronic lock 12 is an electromagnetic lock. In general, the electromagnetic lock is not powered to keep the locked state. After the safety belt is worn and the safety rope is assembled with the anchoring piece, the controller controls the electromagnetic lock to be powered, so that the lock can be unlocked. Then, the two plate bodies 11 are unlocked, and the double-opening cover plate can be flipped to be opened. The staff can work through the wind turbine hoist hole at this time.
[0030] In the embodiment, the controller is a PLC controller of a suitable model on the market.
[0031] As a preferred embodiment, the anchoring piece includes a hanging ring 13 and an anchoring rod 131 connected to one side of the hanging ring 13.
[0032] In the above embodiment, the anchor is pre-installed in the nacelle (external crane) or the tower of the tower yaw platform (internal crane). After the wind turbine is operated, the staff first needs to connect the safety rope with the safety belt and the anchor, then release the locking state of the electronic lock 12, and then can normally operate.
[0033] In this embodiment, the anchor rod 131 is a screw rod, and the staff can operate the anchor rod 131 to screw into the high-position screw hole in the nacelle. Of course, welding can also be used for assembly.
[0034] In this embodiment, the other end of the safety rope is provided with a hook. Generally, the safety rope uses the existing double-hook safety rope on the market, that is, the other end of the safety rope is provided with two hooks, and the two hooks are connected with the hanging ring 13 by hooking. One end of the safety rope is also connected with the corresponding part of the safety belt by hooking.
[0035] As a preferred embodiment, the inside of the hanging ring 13 is provided with an electronic sensor 14 at the connection position of the anchor rod 131. The electronic sensor 14 is connected with the controller, and is used to sense whether the hook is hooked on the hanging ring 13.
[0036] In the above embodiment, the electronic sensor 14 is arranged at the connection position of the anchor rod 131 and the hanging ring 13. When not in use, there is no object (intrusion) in the inside of the hanging ring 13, and the electronic sensor 14 does not sense. When the hook at the other end of the safety rope is hooked on the hanging ring 13, the hook enters (intrudes) the inside space of the hanging ring 13, which is sensed by the electronic sensor 14. Then, the electronic sensor 14 feeds back the signal to the controller. When the controller receives the signal, the electronic lock 12 is energized and unlocked, and the staff can normally open the plate body 11, so that the wind turbine hoisting hole is opened for subsequent operation. The whole is realized by a set of electronic protection mechanism (system) to achieve mandatory safety protection measures, and the safety level is greatly improved, which greatly reduces the risk of staff falling.
[0037] As a preferred embodiment, the alarm is also included, and the alarm is electrically connected with the controller. The alarm is arranged near the wind turbine hoisting hole.
[0038] In the above embodiment, when the hook of the safety rope is separated from the hanging ring 13 during operation (specifically, during the operation of opening the double-opening cover plate, if the staff manually releases the hook from the hanging ring 13), the controller will timely receive the sensing signal of the electronic sensor 14, and the alarm will alarm to remind the staff.
[0039] As a preferred embodiment, the background control terminal is also included, and the controller is network-connected with the background control terminal.
[0040] In the above embodiment, the controller feeds back the signal received by the electronic sensor 14 and the state information of the electronic lock 12 to the background control terminal, and the staff at the background control terminal can learn the relevant information in real time, and when the security level is reduced (such as the hook being separated from the hanging ring 13), the staff will be immediately notified (by telephone or other voice forms) to check and reconnect the connection of each protective component, that is, the supervision and management of the back end are increased, and the protection effect is better.
[0041] As a preferred embodiment, as shown in Figure 3 The monitoring device is arranged above the nacelle of the wind turbine generator and is connected to the background control terminal in network.
[0042] In the above embodiment, the monitoring device is arranged in the nacelle, which can capture the process of the staff operation in real time, and the staff at the background control terminal can also discover the security omissions in real time through the monitoring picture, thereby strengthening the safety management and safety reminding work and fully protecting the safety of the staff.
[0043] In the embodiment, the electronic sensor 14 is a proximity switch of an existing product. After the hook at the other end of the safety rope is hooked into the hanging ring 13, the hook close to the proximity switch will be sensed.
[0044] In the embodiment, each electrical element can be self-powered, or externally connected to a power grid or a local area network power supply.
[0045] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, therefore it cannot be understood as a limitation on the utility model.
[0046] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0047] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.
[0048] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be that the first and second features directly contact, or the first and second features indirectly contact through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or just indicates that the first feature is higher than the second feature in horizontal height.The first feature "under", "below" and "on" the second feature can be that the first feature is directly below or obliquely below the second feature, or just indicates that the first feature is lower than the second feature in horizontal height.
[0049] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.
[0050] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.
Claims
1. A wind turbine hoisting hole anti-fall interlocking protection system, characterized in that: The system includes a double-opening cover plate hinged to the hoisting hole of the wind turbine, a safety belt, a safety rope, and an anchor. The double-opening cover plate includes two plates (11), which are respectively hinged to opposite sides of the hoisting hole of the wind turbine. The two plates can be flipped to close each other to close the hoisting hole of the wind turbine, or flipped to open. An electronic lock (12) is provided on the upper part of the side of the two plates (11) that are close to each other, and is locked by the electronic lock (12) after the two plates are close together. The anchor is installed in the nacelle of the wind turbine. One end of the safety rope is detachably connected to the safety belt, and the other end is detachably connected to the anchor. The electronic lock (12) is electrically connected to the controller.
2. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 1, characterized in that: The electronic lock (12) is an electromagnetic lock.
3. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 1, characterized in that: The controller is a PLC controller.
4. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 1, characterized in that: The anchor includes a hanging ring (13) and an anchor rod (131) connected to one side of the hanging ring (13).
5. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 4, characterized in that: The other end of the safety rope is provided with a hook, and is hooked to the hanging ring (13) through the hook.
6. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 5, characterized in that: An electronic sensor (14) is installed on the inner side of the hanging ring (13) where it connects to the anchor rod (131). The electronic sensor (14) is connected to the controller and is used to sense whether the hook is hooked onto the hanging ring (13).
7. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine as described in claim 6, characterized in that: It also includes an alarm device, which is electrically connected to the controller and is installed near the hoisting hole of the wind turbine.
8. The anti-fall-off interlocking protection system for the hoisting hole of a wind turbine according to claim 7, characterized in that: It also includes a back-end control terminal, and the controller is connected to the back-end control terminal via a network.
9. A wind turbine hoisting hole anti-fall interlocking protection system according to claim 8, characterized in that: It also includes monitoring equipment, which is installed above the nacelle of the wind turbine and connected to the back-end control terminal network.
10. A wind turbine hoisting hole anti-fall interlocking protection system according to claim 6, characterized in that: The electronic sensor (14) is a proximity switch.