Novel blade stripping air bag

By adding soft pads to the blade molding airbag and designing a limiting assembly, the problem of top-up failure when the airbag lifts the blade in the prior art is solved, and the width of different blade beam caps is adapted to the application range of the device.

CN222891599UActive Publication Date: 2025-05-23CHINA MING YANG WIND POWER GRP LTD
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Patent Information

Application Number
CN202421753112.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-23
Publication Date
2025-05-23
Estimated Expiration
2034-07-23

AI Technical Summary

Technical Problem

During the production of wind turbine blades, existing airbags are prone to cause the blade top to break when lifting the blades, and a single-size airbag cannot adapt to the width of different blade beam caps.

Method used

A new type of blade molding airbag is designed. By adding soft pads to the upper part of the airbag body, the area of ​​the pad is within the width of the blade beam cap, and the pads are formed with the limiting assembly to form a detachable connection with the airbag body to ensure that only the pads come into contact with the blade beam cap.

Benefits of technology

It effectively avoids the thrust of the airbag main body when lifting the blade, and adapts to the width of the different blade beam caps through replaceable soft pads, which enhances the scope of application of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel blade stripping air bag. The novel blade stripping air bag comprises an air bag main body, a soft cushion, a limiting assembly and a limiting main frame, a soft cushion is arranged above the air bag body and detachably connected with the air bag body through a limiting assembly. The limiting assembly comprises a bandage and a bottom frame, the bandage is arranged along the outer side of the air bag body and detachably connected with the soft cushion, the two ends of the bandage are fixedly connected with inserting blocks, a plurality of inserting bases are arranged on the two sides of the bottom frame and arranged in the length direction of the bottom frame, and each inserting base is detachably connected with the corresponding inserting block. The limiting main frame penetrates through the socket and the bottom frame and is detachably connected with the socket and the bottom frame. The cushion is additionally arranged on the upper portion of the air bag body, the area of the cushion is within the width of the blade beam cap, and only the cushion makes contact with the blade beam cap in the process of inflating the air bag body. Other places except the beam cap area are prevented from making contact with the air bag body, and therefore the situation that the blades are damaged when the blades are jacked up by the air bag body can be effectively avoided.
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Description

Technical Field

[0001] The utility model relates to the technical field of blade demoulding, in particular to a novel blade demoulding air bag. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean and renewable energy source that has been used by people for a long time. During the production of wind turbine blades, because the blades are relatively long, it is necessary to demould them by first lifting the tip of the blade and then the heel of the blade: the tip of the blade needs to be lifted up in sequence by airbags to the hanging point area in the middle of the blade; but when the blade is lifted up by the airbag, other places except the spar cap area will also contact the airbag, and then when the airbag lifts the blade, the blade will be damaged. The size of the airbag suitable for different widths of the blade spar cap is also inconsistent, so the use of a single size of airbag for demoulding also has limitations. To this end, the present application proposes a new blade demoulding airbag, which provides a new technical solution to solve the technical problems mentioned above. Utility Model Content

[0003] The utility model aims to solve the deficiencies in the prior art and provides a new type of blade demoulding airbag, by adding a soft cushion on the upper part of the airbag body, the area of ​​the soft cushion is within the width of the blade beam cap, and in the process of inflating the airbag body, only the soft cushion is in contact with the blade beam cap, avoiding contact between other parts except the beam cap area and the airbag body, thereby effectively avoiding the situation that the blade is damaged when the airbag body lifts up the blade.

[0004] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a new type of blade demolding airbag, including an airbag body, a cushion, a limit assembly and a limit main frame; a cushion is arranged on the top of the airbag body, and the cushion and the airbag body are detachably connected through the limit assembly; the limit assembly includes a strap and a base frame, the strap is arranged along the outer side of the airbag body and is detachably connected to the cushion, both ends of the strap are fixedly connected with plug blocks, a plurality of sockets are arranged on both sides of the base frame, and the sockets are arranged along the length direction of the base frame, and each of the sockets corresponds to a plug block to form a detachable connection; the limit main frame passes through the socket and the base frame, and is detachably connected to the socket and the base frame.

[0005] Furthermore, an anti-slip cover is provided at the position where the strap and the cushion are inserted.

[0006] Furthermore, grooves for matching with the sockets are formed on both side surfaces of the base frame.

[0007] Furthermore, the limiting main frame includes a reinforcing rod, a limiting end frame and a first limiting cap; there are two reinforcing rods, which are respectively used to strengthen the connection between the base frames and the sockets on both sides, and reinforcing rod mounting holes for the reinforcing rods to pass through are opened on both sides of the base frame along its length direction, and reinforcing rod mounting holes for the reinforcing rods to pass through are also opened at the positions on the socket that cooperate with the base frame, and the reinforcing rod mounting holes of the socket and the base frame correspond one by one, so that each of the reinforcing rods can cross the base frame and the socket, and the two ends of the reinforcing rods extend out of the base frame, and the upper limit end frames and the first limiting caps are respectively and sequentially assembled to complete the connection between the reinforcing rods, the socket and the base frame.

[0008] Furthermore, the limit main frame also includes a limit rod, a connecting block and a second limit cap; there are two limit rods, one ends of the two limit rods are connected together by a connecting block to form a secondary limit frame, there are two secondary limit frames, which are respectively installed on both sides of the base frame, each of the plug block and its matching socket is provided with a secondary limit frame mounting hole for the secondary limit frame to be inserted, and the secondary limit frame mounting holes on the plug block and the socket on the same side are one-to-one corresponding, after the other ends of the two limit rods pass through the plug block and the socket and extend out of the limit end frame, the second limit cap is assembled.

[0009] Furthermore, the binding strap is an elastic strap.

[0010] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0011] 1. The new blade demoulding airbag provided by the utility model adds a soft cushion on the upper part of the airbag body, and the area of ​​the soft cushion is within the width of the blade beam cap. During the inflating process of the airbag body, only the soft cushion is in contact with the blade beam cap, and other places except the beam cap area are prevented from contacting the airbag body, thereby effectively preventing the blade from being damaged when the airbag body lifts up the blade.

[0012] 2. The new blade demoulding airbag provided by the utility model has a structural design of a limit assembly so that the soft pad can be separated from the airbag body, so that the corresponding soft pad can be replaced according to the width of the blade beam cap, thereby effectively improving the application range of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the cushion and limit assembly.

[0015] Figure 3 It is a three-dimensional assembly diagram of the cushion and limit components.

[0016] Figure 4 It is a three-dimensional assembly diagram of the base frame, the limiting component and the limiting main frame.

[0017] Figure 5 It is a three-dimensional assembly diagram of the base frame and the limiting main frame.

[0018] The markings in the figure are as follows:

[0019] 1. Airbag body; 2. Cushion; 3. Limiting assembly; 4. Strap; 5. Base frame; 6. Anti-slip cover; 7. Insert block; 8. Socket; 9. Limiting main frame; 10. Reinforcement rod; 11. Limiting end frame; 12. First limiting cap; 13. Limiting insert rod; 14. Connecting block; 15. Second limiting cap. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with specific embodiments.

[0021] Example 1

[0022] See also Figures 1 to 3 As shown, the new blade demoulding airbag provided in this embodiment includes an airbag body 1, a cushion 2, a limiting component 3 and a limiting main frame 9;

[0023] A cushion 2 is arranged above the airbag body 1, and the cushion 2 is detachably connected to the airbag body 1 through a limiting assembly 3; the limiting assembly 3 includes a strap 4 and a base frame 5, wherein, in order to prevent the strap 4 and the cushion 2 from sliding, an anti-slip sleeve 6 is provided in the middle of the strap 4 and at the position where the strap 4 is plugged with the cushion 2, the strap 4 is arranged along the outer side of the airbag body 1 and plugged with the cushion 2, and both ends of the strap 4 are fixedly connected with a plug block 7, and multiple sockets 8 are arranged on both sides of the base frame 5, and the sockets 8 are arranged along the length direction of the base frame 5, and each socket 8 is correspondingly plugged with a plug block 7; the limiting main frame 9 passes through the socket 8 and the base frame 5, and is plugged with the socket 8 and the base frame 5, and is used for the connection and limiting of the plug block 7, the socket 8 and the base frame 5; wherein the socket 8 is plugged and connected with the base frame 5, and a groove matching the socket 8 is provided on the side of the base frame 5, so as to realize the positioning and installation of the socket 8. The strap 4 is an elastic belt. It can be seen that after the strap 4 is plugged into the cushion 2, the plug block 7 at the end of the strap 4 is plugged into the socket 8, and then the socket 8 and the plug block 7 are limited by the limiting main frame 9 with the base frame 5, so as to achieve the fixation of the cushion 2.

[0024] Example 2

[0025] See also Figures 4 to 5 As shown, the new blade demoulding airbag provided in Example 1 is further optimized, including:

[0026] The limit main frame 9 includes a reinforcing rod 10, a limit end frame 11 and a first limit cap 12; there are two reinforcing rods 10, which are respectively used to strengthen the connection between the base frames 5 and the sockets 8 on both sides, and reinforcing rod mounting holes for the reinforcing rods 10 to be inserted are opened on both sides of the base frame 5 along its length direction, and reinforcing rod mounting holes for the reinforcing rods 10 to be inserted are also opened at the positions of the sockets 8 that match the base frame 5, and the reinforcing rod mounting holes of the sockets 8 and the base frame 5 correspond one by one, so that each of the reinforcing rods 10 can cross the base frame 5 and the socket 8, and the two ends of the reinforcing rods 10 extend out of the base frame 5, and the upper limit end frames 11 and the first limit caps 12 are respectively and sequentially assembled to complete the connection between the reinforcing rods 10, the socket 8 and the base frame 5;

[0027] The limit main frame 9 also includes a limit plug rod 13, a connecting block 14 and a second limit cap 15; there are two limit plug rods 13, one end of the two limit plug rods 13 is connected together by a connecting block 14 to form a secondary limit frame, there are two secondary limit frames, which are respectively installed on both sides of the base frame 5, each of the plug block 7 and its matching socket 8 is provided with a secondary limit frame mounting hole for the secondary limit frame to be inserted, and the secondary limit frame mounting holes on the plug block 7 and the socket 8 on the same side are one-to-one corresponding, after the other ends of the two limit plug rods 13 pass through the plug block 7 and the socket 8 and extend out of the limit end frame 11, the second limit cap 15 is assembled;

[0028] It can be seen that after the end of the strap 4 is plugged into the socket 8 through the plug block 7, the limit end frame 11 is placed at the end of the base frame 5, and then the auxiliary limit frame passes through the limit end frame 11 at one end of the base frame 5, so that the auxiliary limit frame is inserted into the base frame 5, so that the limit plug rod 13 completes the plug-in connection with the base frame 5, the socket 8, and the plug block 7, and the auxiliary limit frame passes through the outside of the limit end frame 11 at the other end of the base frame 5, and is fixed to the end of the limit plug rod 13 away from the connecting block 14 through the second limit cap 15, thereby realizing the connection limit of the strap 4 and the base frame 5; then the reinforcement rod 10 is inserted into the base frame 5, and the reinforcement rod 10 is plugged and connected with the socket 8 until both ends of the reinforcement rod 10 extend to the outside of the limit end frame 11 at the end of the base frame 5, and the first limit cap 12 is installed to the end of the reinforcement rod 10 to realize the fixation of the reinforcement rod 10, thereby improving the connection firmness of the socket 8 and the base frame 5 through the reinforcement rod 10.

[0029] The embodiments described above are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, all changes made based on the shape and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new blade demoulding airbag, characterized by: The invention comprises an airbag body (1), a cushion (2), a limiting assembly (3) and a limiting main frame (9); a cushion (2) is arranged above the airbag body (1), and the cushion (2) and the airbag body (1) are detachably connected through the limiting assembly (3); the limiting assembly (3) comprises a strap (4) and a base frame (5); the strap (4) is arranged along the outer side of the airbag body (1) and is detachably connected to the cushion (2); both ends of the strap (4) are fixedly connected to plug blocks (7); a plurality of sockets (8) are arranged on both sides of the base frame (5), and the sockets (8) are arranged along the length direction of the base frame (5), and each socket (8) is detachably connected to a plug block (7); the limiting main frame (9) passes through the socket (8) and the base frame (5), and is detachably connected to the socket (8) and the base frame (5).

2. A novel blade demoulding airbag according to claim 1, characterized in that: An anti-slip sleeve (6) is provided at the position where the binding strap (4) and the soft pad (2) are inserted.

3. A novel blade demoulding airbag according to claim 1, characterized in that: Both sides of the base frame (5) are provided with grooves for matching with the socket (8).

4. A novel blade demoulding airbag according to claim 3, characterized in that: The limit main frame (9) comprises a reinforcing rod (10), a limit end frame (11) and a first limit cap (12); there are two reinforcing rods (10), which are respectively used to strengthen the connection between the base frames (5) and the sockets (8) on both sides; reinforcing rod mounting holes for the reinforcing rods (10) to be inserted are provided on both sides of the base frame (5) along its length direction; reinforcing rod mounting holes for the reinforcing rods (10) to be inserted are also provided at positions on the socket (8) that match the base frame (5); and the reinforcing rod mounting holes of the socket (8) and the base frame (5) correspond one to one, so that each reinforcing rod (10) can cross the base frame (5) and the socket (8); and the two ends of the reinforcing rod (10) extend out of the base frame (5), and the upper limit end frames (11) and the first limit cap (12) are respectively and sequentially assembled to complete the connection between the reinforcing rod (10), the socket (8) and the base frame (5).

5. A novel blade demoulding airbag according to claim 4, characterized in that: The limit main frame (9) also includes a limit plug rod (13), a connecting block (14) and a second limit cap (15); there are two limit plug rods (13), one end of the two limit plug rods (13) are connected together through the connecting block (14) to form a secondary limit frame, there are two secondary limit frames, which are respectively installed on the two sides of the base frame (5), each of the plug blocks (7) and the matching socket (8) is provided with a secondary limit frame mounting hole for the secondary limit frame to be inserted, and the secondary limit frame mounting holes on the plug blocks (7) and the sockets (8) on the same side are one-to-one corresponding to each other, and after the other ends of the two limit plug rods (13) pass through the plug blocks (7) and the sockets (8) and extend out of the limit end frame (11), the second limit cap (15) is assembled.

6. A novel blade demoulding airbag according to claim 1, characterized in that: The binding belt (4) is an elastic belt.