Flexible clamping device for blade root flange of wind power equipment

Abstract

The utility model discloses a flexible clamping device for a blade root flange of wind power equipment, which comprises a first clamping seat, the first clamping seat is arranged above a fixed base, a second clamping seat is arranged on one side of the first clamping seat, the first clamping seat is flush with the second clamping seat, and a connecting seat is arranged below the second clamping seat; the servo motor is arranged on one side of the fixed base, a threaded hole is formed in the connecting base, a ball screw is arranged on one side of the connecting base, one end of the ball screw is connected with the output end of the servo motor, the ball screw and the threaded hole are arranged in a penetrating mode, and the ball screw is in threaded connection with the connecting base; according to the clamping device, the first semicircular block, the second semicircular block and the third semicircular block rotate correspondingly when being in contact with the flange and stressed, the clamping device can be in contact with multiple parts of the flange, flanges of different shapes can be effectively clamped, the clamping parts are made of rubber, the clamped flange is protected, and the flange clamping effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power equipment, in particular to a flexible clamping device for the root flange of a wind power equipment blade. Background Technique

[0002] With the support of national policies, the wind power industry in China has developed rapidly and has become the most active place for domestic and international wind power investment. Wind power equipment refers to equipment that uses wind energy to generate electricity or wind power generation. Wind power equipment is an important part of the wind power industry and is also the foundation and guarantee for the development of the wind power industry. Wind power blades are the main components of wind power equipment. The wind power blades are connected to the wind turbine through connecting bolts at the root, and the connecting bolts are connected to the blade root through "T"-shaped round nuts or embedded bolt sleeves.

[0003] Chinese Patent Publication No. is CN217801284U, and the authorized publication date is November 15, 2022. A flexible clamping device for the root flange of a wind power equipment blade, including a bottom plate, a cylinder, guide rods, guide sleeves, a synchronous plate, a U-shaped positioning frame, movable rollers, a back-side positioning roller and an end positioning roller. The cylinder is fixed on one side of the bottom plate. There are two guide rods, and both ends of the guide rods are fixed on the bottom plate through guide rod brackets. The guide sleeve is slidably connected with the guide rod. Both ends of the synchronous plate are fixedly connected with the guide sleeve. The middle part of the synchronous plate is connected with the piston rod of the cylinder. The outside of the synchronous plate is fixedly connected with the U-shaped positioning frame. Movable rollers are respectively installed on both sides of the U-shaped fixing frame. The back-side positioning roller and the end positioning roller are separated. The structure of this device is compact. By using this device to fix and process the root flange of the spliced structure, the fixing is stable, thereby improving the processing accuracy and greatly improving the quality of the root flange of the blade.

[0004] The end face of the clamping structure of the existing clamping device is set flat, and the outside of the flange is curved. When using a flat clamping structure to contact the side wall of the flange, the clamping structure cannot fully contact the flange, and the clamped flange is prone to looseness, reducing the clamping effect of the flange and not meeting the use requirements. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flexible clamping device for the root flange of a wind power equipment blade, so as to solve the problem raised in the above background technique that the end face of the clamping structure of the existing clamping device is set flat, the outside of the flange is curved, when using a flat clamping structure to contact the side wall of the flange, the clamping structure cannot fully contact the flange, and the clamped flange is prone to looseness, reducing the clamping effect of the flange and not meeting the use requirements.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A flexible clamping device for the root flange of a wind power equipment blade, including a fixed base, and further including:

[0007] The first clamping seat is arranged above the fixed base, and the first clamping seat is connected to the fixed base by screws. A second clamping seat is arranged on one side of the first clamping seat, and the second clamping seat is arranged above the fixed base. The first clamping seat and the second clamping seat are arranged flush. A connecting seat is arranged below the second clamping seat, and the connecting seat is fixedly connected to the second clamping seat;

[0008] The servo motor is arranged on one side of the fixed base, and the servo motor is connected to the fixed base by screws. A threaded hole is arranged on the connecting seat. A ball screw is arranged on one side of the connecting seat, and one end of the ball screw is connected to the output end of the servo motor. The ball screw is arranged through the threaded hole and is in threaded connection with the connecting seat.

[0009] Preferably, first installation grooves are arranged at one ends of the first clamping seat and the second clamping seat. There are four first installation grooves, and first semi-circular blocks are arranged inside the four first installation grooves. The first semi-circular blocks are rotatably connected to both the first clamping seat and the second clamping seat. A second installation groove is arranged at one end of the first semi-circular block. There are two second installation grooves, and second semi-circular blocks are arranged inside the two second installation grooves. The second semi-circular blocks are rotatably connected to the first semi-circular blocks. A third installation groove is arranged at one end of the second semi-circular block. There are two third installation grooves, and third semi-circular blocks are arranged inside the two third installation grooves. The third semi-circular blocks are rotatably connected to the second semi-circular blocks.

[0010] Preferably, first sliding strips are arranged on the outer sides of the first semi-circular blocks, and the first sliding strips are fixedly connected to the first semi-circular blocks. The first sliding strips are slidably connected to both the first clamping seat and the second clamping seat. Second sliding strips are arranged on the outer sides of the second semi-circular blocks, and the second sliding strips are fixedly connected to the second semi-circular blocks. The second sliding strips are slidably connected to the first semi-circular blocks. Third sliding strips are arranged on the outer sides of the third semi-circular blocks, and the third sliding strips are fixedly connected to the third semi-circular blocks. The third sliding strips are slidably connected to the second semi-circular blocks, and the cross-sections of the first sliding strips, the second sliding strips and the third sliding strips are all arranged in a T shape.

[0011] Preferably, sliding grooves are arranged at the lower end of the connecting seat. There are two sliding grooves, and the two sliding grooves are arranged on both sides of the threaded hole. Slide rails are arranged inside the two sliding grooves, and the slide rails are fixedly connected to the fixed base. The slide rails are slidably connected to the connecting seat.

[0012] Preferably, a rubber convex strip is arranged at one end of the third semi-circular block, and the rubber convex strip is integrally connected to the third semi-circular block.

[0013] Preferably, a pressure sensor is arranged at the connection part of the rubber convex strip and the third semi-circular block, and the pressure sensor is fixedly connected to the third semi-circular block.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. Through the arrangement of the first clamping seat, the second clamping seat, the servo motor, the ball screw and the connecting seat, the servo motor drives the ball screw to rotate. The ball screw is threadedly connected with the connecting seat. As the ball screw rotates, the second clamping seat is driven to move along the slide rail, and the first clamping seat and the second clamping seat are brought into contact with both sides of the flange, realizing the clamping of the flange;

[0016] 2. Through the arrangement of the first semi-circular block, the second semi-circular block, the third semi-circular block, the rubber convex strip and the pressure sensor, when the first semi-circular block, the second semi-circular block and the third semi-circular block are in contact with the flange and receive force, they rotate accordingly, can contact multiple parts of the flange, the rubber convex strip can better contact the flange, clamp multiple parts of the flange at the same time, and can protect the clamped flange. The pressure sensor measures the pressure applied to the flange, which is convenient for controlling the clamping force, avoiding over-clamping the flange and damaging the flange, and improving the flange clamping effect. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the utility model;

[0018] Figure 2 is the Figure 1 partial enlarged view of Area A of the

[0019] Figure 3 is the connection relationship diagram of the first clamping seat, the first semi-circular block, the second semi-circular block and the third semi-circular block of the utility model;

[0020] Figure 4 is the connection relationship diagram of the second clamping seat and the fixed base of the utility model;

[0021] Figure 5 is the Figure 3 partial enlarged view of Area B of the

[0022] In the figure: 1, fixed base; 2, first clamping seat; 3, second clamping seat; 4, servo motor; 5, ball screw; 6, connecting seat; 7, slide rail; 8, first semi-circular block; 9, second semi-circular block; 10, third semi-circular block; 11, first slide bar; 12, second slide bar; 13, third slide bar; 14, rubber convex strip; 15, first installation groove; 16, second installation groove; 17, third installation groove; 18, pressure sensor; 19, chute; 20, threaded hole. Specific Embodiment

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present invention: a flexible clamping device for the blade root flange of a wind power equipment, including a fixed base 1, and further including:

[0025] A first clamping seat 2, which is arranged above the fixed base 1, and the first clamping seat 2 is connected to the fixed base 1 by screws. A second clamping seat 3 is arranged on one side of the first clamping seat 2, and the second clamping seat 3 is arranged above the fixed base 1. The first clamping seat 2 and the second clamping seat 3 are arranged flush. A connecting seat 6 is arranged below the second clamping seat 3, and the connecting seat 6 is fixedly connected to the second clamping seat 3;

[0026] A servo motor 4, which is arranged on one side of the fixed base 1, and the servo motor 4 is connected to the fixed base 1 by screws. A threaded hole 20 is arranged on the connecting seat 6. A ball screw 5 is arranged on one side of the connecting seat 6, and one end of the ball screw 5 is connected to the output end of the servo motor 4. The ball screw 5 is arranged through the threaded hole 20, and the ball screw 5 is threadedly connected to the connecting seat 6.

[0027] During use: Place the flange flat on the fixed base 1. The flange is placed between the first clamping seat 2 and the second clamping seat 3. Turn on the servo motor 4 to drive the ball screw 5 to rotate. The ball screw 5 is threadedly connected to the connecting seat 6. As the ball screw 5 rotates, it drives the second clamping seat 3 to move along the ball screw 5, and clamps the first clamping seat 2 and the second clamping seat 3 from both sides of the flange.

[0028] Please refer to Figure 1 , Figure 2 and Figure 3, one end of the first clamping seat 2 and the second clamping seat 3 is provided with a first installation groove 15. There are four first installation grooves 15. Inside each of the four first installation grooves 15, a first semi-circular block 8 is provided, and the first semi-circular block 8 is rotatably connected to both the first clamping seat 2 and the second clamping seat 3. One end of the first semi-circular block 8 is provided with a second installation groove 16. There are two second installation grooves 16. Inside the two second installation grooves 16, a second semi-circular block 9 is provided, and the second semi-circular block 9 is rotatably connected to the first semi-circular block 8. One end of the second semi-circular block 9 is provided with a third installation groove 17. There are two third installation grooves 17. Inside each of the two third installation grooves 17, a third semi-circular block 10 is provided, and the third semi-circular block 10 is rotatably connected to the second semi-circular block 9. When the first semi-circular block 8, the second semi-circular block 9, and the third semi-circular block 10 are in contact with the flange and subjected to force, they rotate accordingly, and can contact multiple parts of the flange, and clamp multiple parts of the flange at the same time, so as to better clamp flanges of different shapes.

[0029] Please refer to Figure 2 , Figure 3 and Figure 5 , the outside of the first semi-circular block 8 is provided with a first sliding strip 11, and the first sliding strip 11 is fixedly connected to the first semi-circular block 8. The first sliding strip 11 is slidably connected to both the first clamping seat 2 and the second clamping seat 3. The outside of the second semi-circular block 9 is provided with a second sliding strip 12, and the second sliding strip 12 is fixedly connected to the second semi-circular block 9. The second sliding strip 12 is slidably connected to the first semi-circular block 8. The outside of the third semi-circular block 10 is provided with a third sliding strip 13, and the third sliding strip 13 is fixedly connected to the third semi-circular block 10. The third sliding strip 13 is slidably connected to the second semi-circular block 9, and the cross-sections of the first sliding strip 11, the second sliding strip 12, and the third sliding strip 13 are all arranged in a T shape. By installing the first semi-circular block 8, the second semi-circular block 9, and the third semi-circular block 10 through the first sliding strip 11, the second sliding strip 12, and the third sliding strip 13, it can also play a limiting role on the rotating first semi-circular block 8, the second semi-circular block 9, and the third semi-circular block 10.

[0030] Please refer to Figure 1 and Figure 4 , the lower end of the connecting seat 6 is provided with a sliding groove 19. There are two sliding grooves 19, and the two sliding grooves 19 are arranged on both sides of the threaded hole 20. Inside each of the two sliding grooves 19, a sliding rail 7 is provided, and the sliding rail 7 is fixedly connected to the fixed base 1. The sliding rail 7 is slidably connected to the connecting seat 6. Through the connecting seat 6 and the sliding rail 7, it can not only support the second clamping seat 3, but also play a guiding role on the moving second clamping seat 3, so that the second clamping seat 3 moves smoothly.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5, one end of the third semi-circular block 10 is provided with a rubber raised strip 14, and the rubber raised strip 14 is integrally connected with the third semi-circular block 10. Through the rubber raised strip 14, it can better contact the flange and can protect the clamped flange, improving the flange clamping effect.

[0032] Please refer to Figure 3 and Figure 5 , a pressure sensor 18 is provided at the connection between the rubber raised strip 14 and the third semi-circular block 10, and the pressure sensor 18 is fixedly connected to the third semi-circular block 10. The pressure applied to the flange is measured by the pressure sensor 18, which is convenient for controlling the clamping force and avoiding damage to the flange caused by over-clamping.

[0033] Working principle: Place the flange flat on the fixed base 1, with the flange positioned between the first clamping seat 2 and the second clamping seat 3. Turn on the servo motor 4 to drive the ball screw 5 to rotate. The ball screw 5 is threadedly connected to the connecting seat 6. As the ball screw 5 rotates, it drives the second clamping seat 3 to move along the slide rail 7, clamping the first clamping seat 2 and the second clamping seat 3 from both sides of the flange. When the first semi-circular block 8, the second semi-circular block 9, and the third semi-circular block 10 contact and are stressed by the flange, they rotate accordingly, can contact multiple parts of the flange, and clamp multiple parts of the flange at the same time; the rubber raised strip 14 can better contact the flange and can protect the clamped flange. The pressure sensor 18 measures the pressure applied to the flange, which is convenient for controlling the clamping force, avoiding damage to the flange caused by over-clamping, and improving the flange clamping effect.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible clamping device for a blade root flange of a wind power equipment, comprising a fixed base (1), characterized in that: Also includes: A first clamping seat (2) is arranged above the fixed base (1), and the first clamping seat (2) and the fixed base (1) are connected by screws; a second clamping seat (3) is arranged on one side of the first clamping seat (2), and the second clamping seat (3) is arranged above the fixed base (1); the first clamping seat (2) and the second clamping seat (3) are arranged flush; a connecting seat (6) is arranged below the second clamping seat (3), and the connecting seat (6) is fixedly connected to the second clamping seat (3); A servo motor (4) is arranged on one side of the fixed base (1), and the servo motor (4) is connected to the fixed base (1) by means of screws; a threaded hole (20) is arranged on the connecting base (6); a ball screw (5) is arranged on one side of the connecting base (6), and one end of the ball screw (5) is connected to the output end of the servo motor (4); the ball screw (5) and the threaded hole (20) are connected to each other, and the ball screw (5) is threadedly connected to the connecting base (6).

2. The flexible clamping device for the root flange of a wind power equipment blade according to claim 1, characterized in that: One end of each of the first clamping seat (2) and the second clamping seat (3) is provided with a first mounting groove (15), and there are four first mounting grooves (15). A first semicircular block (8) is provided inside each of the four first mounting grooves (15), and the first semicircular block (8) is rotatably connected to the first clamping seat (2) and the second clamping seat (3). One end of the first semicircular block (8) is provided with a second mounting groove (16), and there are two second mounting grooves (16). A second semicircular block (9) is provided inside each of the two second mounting grooves (16), and the second semicircular block (9) is rotatably connected to the first semicircular block (8). One end of the second semicircular block (9) is provided with a third mounting groove (17), and there are two third mounting grooves (17). A third semicircular block (10) is provided inside each of the two third mounting grooves (17), and the third semicircular block (10) is rotatably connected to the second semicircular block (9).

3. The flexible clamping device for the root flange of a wind power equipment blade according to claim 2 is characterized in that: A first slide bar (11) is arranged outside the first semicircular block (8), and the first slide bar (11) is fixedly connected to the first semicircular block (8), and the first slide bar (11) is slidably connected to the first clamping seat (2) and the second clamping seat (3); a second slide bar (12) is arranged outside the second semicircular block (9), and the second slide bar (12) is fixedly connected to the second semicircular block (9), and the second slide bar (12) is slidably connected to the first semicircular block (8); a third slide bar (13) is arranged outside the third semicircular block (10), and the third slide bar (13) is fixedly connected to the third semicircular block (10), and the third slide bar (13) is slidably connected to the second semicircular block (9), and the cross-sections of the first slide bar (11), the second slide bar (12) and the third slide bar (13) are all T-shaped.

4. The flexible clamping device for the root flange of a wind power equipment blade according to claim 1, characterized in that: A slide groove (19) is provided at the lower end of the connecting seat (6), two slide grooves (19) are provided, and the two slide grooves (19) are provided on both sides of the threaded hole (20), and slide rails (7) are provided inside the two slide grooves (19), and the slide rails (7) are fixedly connected to the fixed base (1), and the slide rails (7) are slidably connected to the connecting seat (6).

5. The flexible clamping device for the root flange of a wind power equipment blade according to claim 2, characterized in that: A rubber raised strip (14) is provided at one end of the third semicircular block (10), and the rubber raised strip (14) and the third semicircular block (10) are connected as a whole.

6. The flexible clamping device for the root flange of a wind power equipment blade according to claim 5, characterized in that: A pressure sensor (18) is provided at the connection between the rubber raised strip (14) and the third semicircular block (10), and the pressure sensor (18) is fixedly connected to the third semicircular block (10).

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