Internal hoist for a wind turbine generator

Abstract

The utility model discloses an internal lifting device of wind generating set relates to wind power generation technical field, and the internal lifting device of wind generating set includes slide, lifting bucket, embrace brake mechanism and controller, and the slide is provided with the brake plate, and the lifting bucket is slidably arranged in the slide, and the lifting bucket is provided with the detection piece for the real -time detection of the running speed of lifting bucket, and the embrace brake mechanism is arranged in the lifting bucket, and the embrace brake mechanism includes first drive piece and two embrace brake blocks, two embrace brake blocks are arranged on the both sides of brake plate respectively, and can slide to the direction of approaching each other or each other away, and first drive piece is used for driving two embrace brake blocks to slide, and the controller is used for obtaining the detection data of detection piece, and can control first drive piece operation according to detection data, and drive two embrace brake blocks to slide to the direction of approaching each other, to clamp brake plate. The technical scheme provided by the utility model can solve the technical problem that the internal lifting device of wind generating set has high security risk.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation technology, and in particular to an internal lifting device for a wind turbine generator set. Background Technology

[0002] A wind turbine is a device that converts wind energy into electrical energy and is an important component of renewable energy technology. To capture as much wind energy as possible, wind turbines are typically built at considerable heights. To ensure their proper operation, personnel need to periodically use internal lifting devices to reach the top of the wind turbine for inspection and maintenance. However, traditional internal lifting devices for wind turbines present significant safety risks.

[0003] Therefore, it is necessary to provide a new internal lifting device for wind turbine generators to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide an internal lifting device for wind turbine generator sets, aiming to solve the technical problem of high safety risks associated with internal lifting devices for wind turbine generator sets.

[0005] To achieve the above objectives, this utility model proposes an internal lifting device for a wind turbine generator set, comprising:

[0006] A carriage, the carriage being provided with a brake plate extending along its height direction;

[0007] A lifting bucket is slidably mounted on the slide along the height direction of the slide, and a detection element is provided on the lifting bucket for real-time detection of the running speed of the lifting bucket;

[0008] A brake mechanism is provided on the lifting bucket. The brake mechanism includes a first driving member and two brake blocks. The two brake blocks are respectively provided on both sides of the brake plate and can slide in a direction that moves closer to or further away from each other. The first driving member is used to drive the two brake blocks to slide.

[0009] The controller is used to acquire the detection data of the detection component; the controller can control the first drive component to operate according to the detection data, and drive the two brake blocks to slide in a direction closer to each other to clamp the brake plate.

[0010] In one embodiment, the brake mechanism further includes two mounting plates and a synchronization component; both mounting plates are slidably disposed on the side of the lifting bucket facing the brake plate, and both can slide towards or away from the brake plate; two brake blocks are respectively disposed on the two mounting plates; the synchronization component is disposed on the side of the lifting bucket facing the brake plate and connects the two mounting plates; the first driving member is used to drive one of the mounting plates to slide, and drives the other mounting plate to slide synchronously through the synchronization component.

[0011] In one embodiment, the synchronization component includes a connecting block and two connecting rods. The connecting block is rotatably disposed on the side of the lifting bucket facing the brake plate, and the two connecting rods are rotatably disposed at both ends of the connecting block. The end of each connecting rod away from the connecting block is rotatably connected to the corresponding mounting plate.

[0012] In one embodiment, the rotation axis of the connecting block is perpendicular to the central axis of the brake plate.

[0013] In one embodiment, a braking layer is provided on both sides of the brake plate, and a friction layer is provided on the side of each brake block facing the brake plate.

[0014] In one embodiment, a buffer block is provided at the bottom of the lifting bucket.

[0015] In one embodiment, the carriage includes two spaced-apart slide rods, both of which extend along the height direction of the carriage. The lifting bucket is provided with a guide component corresponding to the position of each slide rod, and each guide component is slidably connected to the corresponding slide rod.

[0016] In one embodiment, each of the slide rods is provided with a slide groove extending along the height direction of the slide frame, and each of the guide components includes a fixed rod and a guide wheel. The fixed rod is disposed on the lifting bucket, and the guide wheel is rotatably disposed on the fixed rod and slidably disposed in the corresponding slide groove.

[0017] In one embodiment, each of the guide components has a plurality of guide wheels. Among the plurality of guide wheels of each guide component, some of the guide wheels are slidably connected to the first sidewall of the corresponding slide groove, and other parts of the guide wheels are slidably connected to the second sidewall of the corresponding slide groove.

[0018] In one embodiment, the internal lifting device of the wind turbine generator set further includes a drive mechanism, the drive mechanism including a drive body disposed on the lifting bucket, the slide being provided with a rack extending along its height direction, and the output end of the drive body being provided with a gear, the gear meshing with the rack.

[0019] The technical solution of this utility model controls the operation of a first driving component, which drives two brake blocks to move closer to each other to clamp the brake plate. This enables emergency braking when the lifting bucket drops rapidly, ensuring the safety of personnel riding in the lifting device. In this embodiment, a carriage is used to form the lifting bucket, allowing it to slide up and down along its height. The lifting bucket has a space for personnel to stand or sit, and a detection element is installed on the lifting bucket to detect its running speed in real time; in a specific embodiment, the detection element can be a speed sensor. The brake mechanism includes a first driving component and two brake blocks. The first driving component drives the two brake blocks to slide closer to or further away from each other to clamp or release the brake plate. The controller acquires the detection data from the detection element and controls the operation of the first driving component based on the detection data. Specifically, when the internal lifting device malfunctions and causes the lifting bucket to fall rapidly, the detection data obtained by the controller will exceed the preset threshold. At this time, the controller will control the first drive component to operate, driving the two brake blocks to slide towards each other to clamp the brake plate, thereby slowing down the descent speed of the lifting bucket and ensuring the safety of the personnel riding the lifting device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the internal lifting device of a wind turbine generator set in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 Rear view;

[0023] Figure 3 A schematic diagram of the brake mechanism in one embodiment of this utility model.

[0024] Explanation of icon numbers:

[0025] 100, Carriage; 110, Brake plate; 120, Slide rod; 121, Slide groove; 122, Rack; 200, Lifting bucket; 210, Buffer block; 220, Guide assembly; 221, Fixed rod; 222, Guide wheel; 300, Brake mechanism; 310, First driving component; 320, Brake block; 321, Friction layer; 330, Mounting plate; 340, Synchronization assembly; 341, Connecting block; 342, Connecting rod; 400, Drive mechanism; 410, Drive body.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] 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.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0030] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] A wind turbine is a device that converts wind energy into electrical energy and is an important component of renewable energy technology. To capture as much wind energy as possible, wind turbines are typically built at considerable heights. During actual production and research, researchers have found that to ensure the normal operation of wind turbines, operators need to periodically use an internal lifting device to reach the top of the turbine for inspection and maintenance. However, in the event of a malfunction in the internal lifting device of a traditional wind turbine, the lifting bucket can plummet rapidly, causing a safety accident. In other words, the internal lifting device of a traditional wind turbine poses a significant safety risk.

[0032] This utility model proposes an internal lifting device for wind turbine generator sets, aiming to solve the technical problem of high safety risks associated with internal lifting devices for wind turbine generator sets.

[0033] Please see Figures 1 to 3 In one embodiment of this utility model, the internal lifting device of the wind turbine generator set includes a slide 100, a lifting bucket 200, a brake mechanism 300, and a controller. The slide 100 is provided with a brake plate 110 extending along its height direction. The lifting bucket 200 is slidably disposed on the slide 100 along its height direction. A detection element is disposed on the lifting bucket 200 for real-time detection of the running speed of the lifting bucket 200. The brake mechanism 300 is disposed on the lifting bucket 200 and includes a first driving member 310 and two brake blocks 320. The two brake blocks 320 are respectively disposed on both sides of the brake plate 110 and can slide towards each other or away from each other. The first driving member 310 is used to drive the two brake blocks 320 to slide. The controller is used to acquire the detection data of the detection element. The controller can control the first driving member 310 to operate according to the detection data, driving the two brake blocks 320 to slide towards each other to clamp the brake plate 110.

[0034] The technical solution of this utility model controls the operation of the first driving member 310, which drives the two brake blocks 320 to move towards each other to clamp the brake plate 110. This enables emergency braking when the lifting bucket 200 drops rapidly, ensuring the safety of the personnel riding in the lifting device. In this embodiment, the slide 100 is used to form the lifting bucket 200, allowing it to slide up and down along its height. The lifting bucket 200 is provided with a space for personnel to stand or sit, and a detection element is provided on the lifting bucket 200 to detect the running speed of the lifting bucket 200 in real time; in a specific embodiment, the detection element can be a speed sensor. The brake mechanism 300 includes the first driving member 310 and two brake blocks 320. The first driving member 310 drives the two brake blocks 320 to slide towards each other or away from each other to clamp or release the brake plate 110. The controller is used to acquire the detection data of the detection element and control the operation of the first driving member 310 according to the detection data. Specifically, when the internal lifting device malfunctions and causes the lifting bucket 200 to plummet rapidly, the detection data acquired by the controller will exceed a preset threshold. At this point, the controller will control the first drive unit 310 to operate, driving the two brake blocks 320 to slide closer together to clamp the brake plate 110, thereby slowing the descent of the lifting bucket 200 and ensuring the safety of personnel using the lifting device. This internal lifting device is applied in technical fields such as wind turbine generator sets.

[0035] Please see Figure 2 and Figure 3 In one embodiment of this utility model, the brake mechanism 300 further includes two mounting plates 330 and a synchronization component 340. Both mounting plates 330 are slidably disposed on the side of the lifting bucket 200 facing the brake plate 110, and can slide towards or away from the brake plate 110. Two brake blocks 320 are respectively disposed on the two mounting plates 330. The synchronization component 340 is disposed on the side of the lifting bucket 200 facing the brake plate 110 and connects the two mounting plates 330. A first driving member 310 is used to drive one of the mounting plates 330 to slide, and drives the other mounting plate 330 to slide synchronously via the synchronization component 340. In this embodiment, by providing the synchronization component 340 to connect the two mounting plates 330 on which the brake blocks 320 are mounted, the first driving member 310 can drive the two brake blocks 320 to slide synchronously to clamp the brake plate 110. The synchronization component 340 enables the two brake blocks 320 to slide synchronously, which improves the reliability of the two brake blocks 320 clamping the brake plate 110 and simplifies the structure, reducing the manufacturing difficulty of the internal lifting device. In a specific embodiment, the first drive component 310 can be a drive cylinder. Both mounting plates 330 are slidably mounted on the side of the lifting bucket 200 facing the brake plate 110 through the cooperation of slide rails and sliders.

[0036] In one embodiment of this utility model, the synchronization component 340 includes a connecting block 341 and two connecting rods 342. The connecting block 341 is rotatably disposed on the side of the lifting bucket 200 facing the brake plate 110. The two connecting rods 342 are respectively rotatably disposed at both ends of the connecting block 341, and the end of each connecting rod 342 away from the connecting block 341 is rotatably connected to the corresponding mounting plate 330. In this embodiment, when the first driving member 310 drives one of the mounting plates 330 to slide, one of the mounting plates 330 will drive the connecting block 341 to rotate through the corresponding connecting rod 342. Subsequently, the connecting block 341 will drive the other mounting plate 330 to slide through the other connecting rod 342. Thus, the two mounting plates 330 can slide synchronously towards the brake plate 110, thereby causing the two brake blocks 320 to slide towards each other to clamp the brake plate 110.

[0037] In one embodiment of this utility model, in order to ensure the braking effect when the brake block 320 clamps the brake plate 110, the rotation axis of the connecting block 341 can be made perpendicular to the central axis of the brake plate 110.

[0038] Please see Figure 2 and Figure 3 In one embodiment of this utility model, braking layers are provided on both sides of the brake plate 110, and friction layers 321 are provided on the side of each brake block 320 facing the brake plate 110. In a specific embodiment, when the two brake blocks 320 clamp the brake plate 110, the friction layers 321 on the two brake blocks 320 contact the braking layers on both sides of the brake plate 110, which can increase the friction force when the two brake blocks 320 clamp the brake plate 110, thereby improving the braking effect. In a specific embodiment, the braking layers can be made of gray cast iron or cast iron composite materials and manufactured by casting, and the friction layers 321 can be made of semi-metallic, low-metallic, and ceramic materials and manufactured by powder metallurgy or hot pressing.

[0039] Please see Figure 1 In one embodiment of this utility model, a buffer block 210 is provided at the bottom of the lifting bucket 200. In this embodiment, the buffer block 210 has the function of absorbing energy and buffering. By providing a buffer block 210 at the bottom of the lifting bucket 200, the impact force generated when the lifting bucket 200 collides with the ground can be reduced, thereby reducing the injury to the workers.

[0040] Please see Figure 1In one embodiment of this utility model, the slide 100 includes two slide rods 120 spaced apart, both slide rods 120 extending along the height direction of the slide 100. A guide component 220 is provided on the lifting bucket 200 corresponding to each slide rod 120, and each guide component 220 is slidably connected to the corresponding slide rod 120. In this embodiment, by providing the guide component 220 to guide the sliding of the lifting bucket 200 along the height direction of the slide 100, the stability of the lifting bucket 200 when sliding along the height direction of the slide 100 can be improved, that is, the stability of the lifting bucket 200 when moving up and down can be improved. In a specific embodiment, a brake plate 110 is disposed between the two slide rods 120.

[0041] Please see Figure 1 In one embodiment of this utility model, each slide rod 120 is provided with a slide groove 121 extending along the height direction of the slide frame 100, and each guide assembly 220 includes a fixed rod 221 and a guide wheel 222. The fixed rod 221 is disposed on the lifting bucket 200, and the guide wheel 222 is rotatably disposed on the fixed rod 221 and slidably disposed in the corresponding slide groove 121. In this embodiment, by slidably disposing the guide wheel 222 in the corresponding slide groove 121, guidance is provided for the vertical lifting of the lifting bucket 200. This improves the stability of the lifting bucket 200 during vertical lifting and reduces friction, thereby reducing the driving force required to drive the lifting bucket 200 vertically.

[0042] Please see Figure 1 In one embodiment of this utility model, each guide assembly 220 has multiple guide wheels 222. Among the multiple guide wheels 222 of each guide assembly 220, some guide wheels 222 are slidably connected to the first side wall of the corresponding slide groove 121, and other guide wheels 222 are slidably connected to the second side wall of the corresponding slide groove 121. In this embodiment, by slidably connecting a portion of the multiple guide wheels 222 to the first side wall of the slide groove 121 and another portion to the second side wall of the slide groove 121, the movement gap can be eliminated, the stability of the guide wheels 222 when sliding in the slide groove 121 can be improved, thereby improving the stability of the lifting bucket 200 when it moves up and down. In a specific embodiment, each guide assembly 220 also has multiple fixing rods 221, the number of which is equal to the number of guide wheels 222. Each guide wheel 222 is installed on the lifting bucket 200 through each fixing rod 221.

[0043] Please see Figure 2In one embodiment of this utility model, the internal lifting device of the wind turbine generator set further includes a drive mechanism 400. The drive mechanism 400 includes a drive body 410, which is disposed on the lifting bucket 200. The slide 100 is provided with a rack 122 extending along its height direction. The output end of the drive body 410 is provided with a gear, which meshes with the rack 122. In this embodiment, the drive mechanism 400 is used to drive the lifting bucket 200 to move up and down. The drive body 410 transmits power through the engagement of the gear and rack 122, which has the characteristics of high load-bearing capacity and high precision, making the operation of the internal lifting device more stable and reliable. In a specific embodiment, the drive body 410 can be a drive motor.

[0044] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. An internal lifting device for a wind turbine generator set, characterized in that, include: A carriage, the carriage being provided with a brake plate extending along its height direction; A lifting bucket is slidably mounted on the slide along the height direction of the slide, and a detection element is provided on the lifting bucket for real-time detection of the running speed of the lifting bucket; A brake mechanism is provided on the lifting bucket. The brake mechanism includes a first driving member and two brake blocks. The two brake blocks are respectively provided on both sides of the brake plate and can slide in a direction that moves closer to or further away from each other. The first driving member is used to drive the two brake blocks to slide. The controller is used to acquire the detection data of the detection component; the controller can control the first drive component to operate according to the detection data, and drive the two brake blocks to slide in a direction closer to each other to clamp the brake plate.

2. The internal lifting device of the wind turbine generator set as described in claim 1, characterized in that, The brake mechanism further includes two mounting plates and a synchronization component; both mounting plates are slidably disposed on the side of the lifting bucket facing the brake plate, and both can slide towards or away from the brake plate; two brake blocks are respectively disposed on the two mounting plates; the synchronization component is disposed on the side of the lifting bucket facing the brake plate and connects the two mounting plates; the first driving member is used to drive one of the mounting plates to slide, and drives the other mounting plate to slide synchronously through the synchronization component.

3. The internal lifting device of the wind turbine generator set as described in claim 2, characterized in that, The synchronization component includes a connecting block and two connecting rods. The connecting block is rotatably disposed on the side of the lifting bucket facing the brake plate. The two connecting rods are rotatably disposed at both ends of the connecting block, and the end of each connecting rod away from the connecting block is rotatably connected to the corresponding mounting plate.

4. The internal lifting device of the wind turbine generator set as described in claim 3, characterized in that, The rotation axis of the connecting block is perpendicular to the central axis of the brake plate.

5. The internal lifting device of the wind turbine generator set as described in claim 1, characterized in that, Both sides of the brake plate are provided with a brake layer, and each of the brake blocks is provided with a friction layer on the side facing the brake plate.

6. The internal lifting device of the wind turbine generator set as described in claim 1, characterized in that, The bottom of the lifting bucket is equipped with a buffer block.

7. The internal lifting device of the wind turbine generator set as described in any one of claims 1 to 6, characterized in that, The carriage includes two slide rods spaced apart, both of which extend along the height direction of the carriage. The lifting bucket is provided with a guide component corresponding to the position of each slide rod, and each guide component is slidably connected to the corresponding slide rod.

8. The internal lifting device of the wind turbine generator set as described in claim 7, characterized in that, Each of the slide rods is provided with a slide groove extending along the height direction of the slide frame, and each of the guide components includes a fixed rod and a guide wheel. The fixed rod is disposed on the lifting bucket, and the guide wheel is rotatably disposed on the fixed rod and slidably disposed in the corresponding slide groove.

9. The internal lifting device of the wind turbine generator set as described in claim 8, characterized in that, Each of the guide components has multiple guide wheels. Among the multiple guide wheels of each guide component, some guide wheels are slidably connected to the first sidewall of the corresponding slide groove, and other guide wheels are slidably connected to the second sidewall of the corresponding slide groove.

10. The internal lifting device of the wind turbine generator set as described in any one of claims 1 to 6, characterized in that, The internal lifting device of the wind turbine generator set also includes a drive mechanism, which includes a drive body disposed on the lifting bucket. The slide is provided with a rack extending along its height direction, and the output end of the drive body is provided with a gear that meshes with the rack.

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