Clamping mechanism for trepanning roots of blades of wind driven generator

Abstract

The utility model discloses a clamping mechanism for trepanning the root of a blade of a wind driven generator, which is characterized in that a support positioning plate is provided with a positioning hole in a penetrating manner, inner cylinders are arranged on the inner surface of the support positioning plate and uniformly distributed on the periphery of the positioning hole by taking the circle center of the positioning hole as the center, and outer cylinders are arranged on the outer surface of the support positioning plate and uniformly distributed on the periphery of the positioning hole; the inner side air cylinders are evenly distributed on the periphery of the positioning hole with the circle center of the positioning hole as the center, the number of the outer side air cylinders is the same as that of the inner side air cylinders, and the outer side air cylinders and the inner side air cylinders are arranged in a staggered mode. Through synchronous clamping of the inner side air cylinders and the outer side air cylinders, the stability of the blade of the wind driven generator is greatly improved, and due to the fact that the inner side air cylinders and the outer side air cylinders are arranged in a staggered mode, the clamping stability is further improved, and therefore the tapping precision of the root of the blade is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of wind turbine blade root clamping equipment, specifically a clamping mechanism for opening holes at the root of wind turbine blades. Background Technology

[0002] The blades are the most basic and critical components of a wind turbine. Their good design, reliable quality, and superior performance are the decisive factors in ensuring the normal and stable operation of the unit.

[0003] To connect to the generator, the end face and side wall of the root of the wind turbine blade are usually perforated. Currently, the perforation clamping mechanism generally uses a single cylinder to clamp the root of the wind turbine blade. Using a single cylinder for clamping can easily lead to poor stability during the perforation process, resulting in reduced perforation accuracy. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a clamping mechanism for opening holes at the root of wind turbine blades, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clamping mechanism for opening holes at the root of wind turbine blades, comprising a support mechanism and a clamping assembly;

[0006] The support mechanism includes a support positioning plate, a bottom plate, and a top plate. The bottom of the support positioning plate is connected to the bottom plate, and the top of the support positioning plate is connected to the top plate. The support positioning plate has a through positioning hole.

[0007] The clamping assembly includes a first cylinder group and a second cylinder group. The first cylinder group consists of several inner cylinders, and the second cylinder group consists of several outer cylinders. The inner cylinders are disposed on the inner surface of the support positioning plate, and are evenly arranged around the center of the positioning hole. The piston rods of the inner cylinders all point to the center of the positioning hole. The outer cylinders are disposed on the outer surface of the support positioning plate, and are evenly arranged around the center of the positioning hole. The piston rods of the outer cylinders all point to the center of the positioning hole. The number of outer cylinders is the same as the number of inner cylinders and they are staggered. The piston rods of both inner and outer cylinders are equipped with pressure blocks.

[0008] Preferably, the present invention provides a clamping mechanism for opening holes at the root of wind turbine blades, wherein several supports are provided on both sides of the support positioning plate, the supports are provided with guide sleeves, the inner cylinder and the outer cylinder are positioned one-to-one with the supports, and the piston rods of the inner cylinder and the outer cylinder are both inserted through the guide sleeves of the corresponding supports.

[0009] Preferably, the present invention provides a clamping mechanism for opening holes at the root of wind turbine blades, wherein the supporting positioning plate is provided with reinforcing upright plates on both sides, and the top and bottom ends of the reinforcing upright plates are respectively connected to the top plate and the bottom plate.

[0010] Preferably, the present invention provides a clamping mechanism for opening holes at the root of wind turbine blades, wherein a rubber ring is provided at the positioning hole of the support positioning plate.

[0011] Preferably, the present invention provides a clamping mechanism for opening holes at the root of wind turbine blades, wherein a rubber pad is provided at the outer end of the pressure block, a connecting sleeve is provided at the end of the pressure block away from the rubber pad, and the pressure block is connected to the piston rods of the corresponding inner and outer cylinders through the connecting sleeve and is fastened with bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The support positioning plate has several inner and outer cylinders arranged in a ring on its inner and outer sides, respectively. When clamping the blade root, the synchronous clamping of the inner and outer cylinders greatly improves the stability of the wind turbine blade. Furthermore, the staggered arrangement of the inner and outer cylinders further enhances the clamping stability, thereby ensuring the accuracy of the opening at the blade root. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model;

[0015] Figure 2 This is a front view structural diagram of the present invention;

[0016] Figure 3 For the appendix Figure 2 Enlarged structural diagram of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the working state of this utility model.

[0018] In the diagram: 1. Support positioning plate; 2. Base plate; 3. Top plate; 4. Positioning hole; 5. Inner cylinder; 6. Outer cylinder; 7. Pressure block; 8. Support; 9. Reinforcing upright plate; 10. Rubber ring; 11. Rubber pad; 12. Connecting sleeve. Detailed Implementation

[0019] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please see Figure 1-3 This utility model provides a technical solution: a clamping mechanism for opening holes at the root of wind turbine blades, including a support mechanism and a clamping assembly;

[0022] The support mechanism includes a support positioning plate 1, a bottom plate 2, and a top plate 3. The bottom of the support positioning plate 1 is connected to the bottom plate 2, and the top of the support positioning plate 1 is connected to the top plate 3. The support positioning plate 1 has a through positioning hole 4. A rubber ring 10 is provided at the positioning hole 4 of the support positioning plate 1 to ensure that the blade root does not directly contact the positioning hole 4, and to avoid friction when the blade root enters or leaves the positioning hole 4, which would cause damage to the blade root. Reinforcing plates 9 are provided on both sides of the support positioning plate 1. The top and bottom of the reinforcing plates 9 are connected to the top plate 3 and the bottom plate 2, respectively, to ensure the structural strength and stability of the support mechanism.

[0023] The clamping assembly includes a first cylinder group and a second cylinder group. The first cylinder group consists of several inner cylinders 5, and the second cylinder group consists of several outer cylinders 6. The inner cylinders 5 are located on the inner surface of the support positioning plate 1, and are evenly arranged around the center of the positioning hole 4. The piston rods of the inner cylinders 5 all point to the center of the positioning hole 4. The outer cylinders 6 are located on the outer surface of the support positioning plate 1, and are evenly arranged around the center of the positioning hole 4. The piston rods of the outer cylinders 6 all point to the center of the positioning hole 4. The number of outer cylinders 6 is the same as the number of inner cylinders 5, and they are staggered. Several supports 8 are provided on both sides of the support positioning plate 1. The supports 8 are equipped with guide sleeves. The positions of the inner cylinders 5 and outer cylinders 6 correspond one-to-one with the supports 8. The piston rods of the inner cylinders 5 and outer cylinders 6... Guide sleeves are installed on the corresponding supports 8. By setting supports 8 with guide sleeves, the stability of the piston rods of the inner cylinder 5 and the outer cylinder 6 when pushing and pulling is ensured, and each pressure block 7 can be smoothly pressed onto the surface of the root of the wind turbine blade. Pressure blocks 7 are installed on the piston rods of the inner cylinder 5 and the outer cylinder 6. Rubber pads 11 are provided on the outer end of the pressure block 7. The rubber pads 11 increase the friction between the pressure block 7 and the root of the blade to achieve anti-slip and ensure clamping stability. A connecting sleeve 12 is provided on the end of the pressure block 7 away from the rubber pad 11. The pressure block 7 is connected to the piston rods of the corresponding inner cylinder 5 and the outer cylinder 6 through the connecting sleeve 12 and is fastened with bolts. The connecting sleeve 12 is used to connect the piston rods of the inner cylinder 5 and the outer cylinder 6 to the support 8, and at the same time facilitates the replacement of the pressure block 7.

[0024] Installation method and operating principle: First, assemble the support mechanism by welding the support positioning plate 1 to the top plate 3, bottom plate 2, and reinforcing upright plate 9. Then, fit the rubber ring 10 into the positioning hole 4 and fix it with bolts. Next, install the support 8 on the outer and inner sides of the support positioning plate 1, with the axis of the guide sleeve of the support 8 pointing to the center of the positioning hole 4. Then, pass the piston rods of the inner cylinder 5 and the outer cylinder 6 through the guide sleeves of the corresponding support 8, and install the inner cylinder 5 and the outer cylinder 6 on the inner and outer surfaces of the support positioning plate 1, respectively. Finally, install the pressure block 7 on the piston rods of the inner cylinder 5 and the outer cylinder 6 to complete the installation. In operation, the wind turbine blades are supported by several trolleys. The blade roots are positioned towards the support positioning plate 1, and the blades are moved to the support positioning plate 1, with their roots passing through the positioning holes 4. Then, the inner cylinder 5 and outer cylinder 6 are activated, causing their piston rods to push outwards, and the corresponding pressure blocks 7 to press against the surface of the blade roots. Figure 4As shown, this design ensures stability during processing at the root of the wind turbine blade. The invention features a rational structure, with several inner cylinders 5 and outer cylinders 6 arranged in a ring on the inner and outer sides of the support and positioning plate 1. When clamping the blade root, the synchronous clamping of the inner cylinders 5 and outer cylinders 6 significantly improves the stability of the wind turbine blade. Furthermore, the staggered arrangement of the inner cylinders 5 and outer cylinders 6 further enhances clamping stability, thus ensuring the accuracy of the opening at the blade root.

[0025] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0026] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping mechanism for a wind turbine blade root bore, characterised in that: The utility model provides a kind of supporting mechanism and clamping assembly; The supporting mechanism includes a support positioning plate (1), a bottom plate (2) and a top plate (3). The bottom of the support positioning plate (1) is connected with the bottom plate (2), and the top end of the support positioning plate (1) is connected with the top plate (3). The support positioning plate (1) is provided with a positioning hole (4) through it. The clamping assembly includes a first cylinder group and a second cylinder group. The first cylinder group is composed of a plurality of inner side cylinders (5), and the second cylinder group is composed of a plurality of outer side cylinders (6). The inner side cylinders (5) are arranged on the inner side surface of the support positioning plate (1) and are evenly arranged around the positioning hole (4) with the center of the positioning hole (4) as the center. The piston rods of the inner side cylinders (5) all point to the center of the positioning hole (4). The outer side cylinders (6) are arranged on the outer side surface of the support positioning plate (1) and are evenly arranged around the positioning hole (4) with the center of the positioning hole (4) as the center. The piston rods of the outer side cylinders (6) all point to the center of the positioning hole (4). The number of the outer side cylinders (6) is the same as that of the inner side cylinders (5) and are staggered. The piston rods of the inner side cylinders (5) and the outer side cylinders (6) are all provided with a pressing block (7).

2. A clamping mechanism for a wind turbine blade root bore according to claim 1, characterised in that: The support positioning plate (1) is provided with a plurality of supports (8) on both sides. The supports (8) are provided with guide sleeves. The inner side cylinders (5) and the outer side cylinders (6) correspond to the positions of the supports (8) one by one. The piston rods of the inner side cylinders (5) and the outer side cylinders (6) all pass through the guide sleeves of the corresponding supports (8).

3. A clamping mechanism for a wind turbine blade root bore according to claim 1, characterized in that: The support positioning plate (1) is provided with a reinforcing vertical plate (9) on both sides. The top end and the bottom end of the reinforcing vertical plate (9) are connected with the top plate (3) and the bottom plate (2) respectively.

4. A clamping mechanism for a wind turbine blade root bore according to claim 1, characterized in that: The positioning hole (4) of the support positioning plate (1) is provided with a rubber ring (10).

5. A clamping mechanism for a wind turbine blade root bore according to claim 1, characterized in that: The outer end of the pressing block (7) is provided with a rubber pad (11). The end of the pressing block (7) away from the rubber pad (11) is provided with a connecting sleeve (12). The pressing block (7) is connected with the piston rods of the corresponding inner side cylinders (5) and outer side cylinders (6) through the connecting sleeve (12) and is fastened and matched by bolts.

Images