Anti-deformation end cover of wind driven generator

Abstract

The utility model relates to the technical field of wind driven generators, and discloses an anti-deformation end cover of a wind driven generator, which comprises an end cover main body, a connecting disc is welded on one side of the end cover main body, four trapezoidal blocks are arranged on the inner side of the connecting disc, and an outer ring and an inner ring are welded on the outer wall of the end cover main body. Four outer abutting rods are welded to the inner ring wall of the outer ring and the outer ring wall of the inner ring, the four outer abutting rods are arranged in a trapezoid mode, and the vertical sections, close to the outer ring, of the outer abutting rods are smaller than the vertical sections, close to the inner ring, of the outer abutting rods. The inner ring is arranged between the inner ring and the outer ring, the outer ring is arranged between the inner ring and the outer ring, then the inner supporting effect on the middle cylinder is achieved under cooperation of the trapezoid blocks, deformation of the middle cylinder is prevented, the end cover body bears outward abutting force, and then the four outer abutting rods are arranged between the inner ring and the outer ring and are arranged in a trapezoid mode, so that inward supporting force is conveniently exerted on the middle of the end cover body; and therefore, the end cover main body further plays an anti-deformation acting force.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, specifically to a wind turbine anti-deformation end cap. Background Technology

[0002] A generator is a device that generates electricity when subjected to mechanical power. In this conversion process, the mechanical power comes from various other forms of energy. The generator end cover is a back cover installed behind the casing of a motor or other machine. The generator end cover serves to fix the rotor, stator, rectifier, and brush assembly. The generator end cover made of aluminum alloy can effectively prevent magnetic leakage, and aluminum alloy has good heat dissipation performance.

[0003] The ends of wind turbines are currently sealed with end caps, which have pre-drilled holes for mounting the shaft. Given that the thickness of the turbine body is relatively limited during operation, the end caps need to play a crucial role in preventing deformation. However, the metal sheet end caps currently in widespread use have certain limitations in their ability to prevent deformation. Utility Model Content

[0004] The purpose of this utility model is to provide a wind turbine anti-deformation end cover, which solves the problem that the end of the wind turbine is currently sealed with an end cover. The end cover has a reserved mounting hole for installing the shaft. Since the thickness of the cylinder of the wind turbine is relatively limited during operation, the end cover needs to play a key role in preventing deformation. However, the metal sheet material end cover that is currently widely used has certain limitations in anti-deformation ability.

[0005] This application provides a wind turbine anti-deformation end cap, including an end cap body. A connecting plate is welded to one side of the end cap body, and four trapezoidal blocks are arranged on the inner side of the connecting plate. An outer ring and an inner ring are welded to the outer wall of the end cap body. Four outer abutment rods are welded to the inner wall of the outer ring and the outer wall of the inner ring. The four outer abutment rods are arranged in a trapezoidal shape, and the vertical cross-section of the outer abutment rod near the outer ring is smaller than the vertical cross-section of the outer abutment rod near the inner ring.

[0006] By adopting the above technical solution, the end cover body is installed at the end of the generator, and four trapezoidal blocks slide into the middle cylinder. With the cooperation of the trapezoidal blocks, the middle cylinder is supported internally to prevent deformation. The end cover body is subjected to an outward resistance force. Then, four outer abutment rods are set between the inner and outer rings. The outer abutment rods are set in a trapezoidal shape to provide inward support to the middle of the end cover body, thereby further enabling the end cover body to play a role in preventing deformation.

[0007] Optionally, fixing blocks are welded to both sides of the four trapezoidal blocks, and each fixing block is fixedly installed to the connecting plate by fixing bolts.

[0008] By adopting the above technical solution, the trapezoidal block can fix the fixed block, and the fixing bolt can fix the fixed block and the trapezoidal block to the inside of the connecting plate.

[0009] Optionally, bearing holes are provided in the inner wall of the connecting disc and end cap body.

[0010] By adopting the above technical solution, the installation of the output shaft can be facilitated through the setting of the bearing hole.

[0011] Optionally, two heat dissipation holes are respectively opened in the inner wall of the connecting plate and the end cover body. Each group of heat dissipation holes is interconnected and arranged in a Z-shape.

[0012] By adopting the above technical solution, the heat dissipation holes facilitate heat dissipation inside the generator. Furthermore, when the end cover body is installed, the Z-shaped heat dissipation holes have a high inner side and a low outer side, which can prevent liquid from entering the generator.

[0013] Optionally, two sets of filter frames are fixedly installed on the outer wall of the end cap body located on one side of the two sets of heat dissipation holes by locking bolts.

[0014] By adopting the above technical solution, the filter frame can be installed on the outer wall of the end cap body by setting the locking bolts.

[0015] Optionally, a filter screen is fixedly installed on the inner wall of each set of filter frames.

[0016] By adopting the above technical solution, the filter frame can fix the filter screen, while the filter screen can filter the heat dissipation holes.

[0017] Optionally, four mounting holes are provided in the inner wall of the end cap body.

[0018] By adopting the above technical solution, the installation holes facilitate the installation of the end cap body and the middle cylinder.

[0019] Optionally, the connecting plate, end cap body, trapezoidal block and outer abutment rod are made of ductile iron.

[0020] By adopting the above technical solution, the connecting plate, end cap body, trapezoidal block and outer abutment are made of ductile iron, which has high impact toughness, elongation and low brittle transition temperature.

[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0022] The technical solution of this application involves installing the end cover body at the end of the generator, with four trapezoidal blocks sliding into the middle cylinder. These trapezoidal blocks provide internal support to the middle cylinder, preventing deformation. The end cover body is subjected to an outward resisting force. Furthermore, four outer abutment rods, which are trapezoidal in shape, are set between the inner and outer rings to provide inward support to the middle of the end cover body, thereby further enabling the end cover body to prevent deformation. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a front view schematic diagram of an anti-deformation end cap for a wind turbine according to the present invention;

[0025] Figure 2 This is a bottom view schematic diagram of an anti-deformation end cap for a wind turbine according to the present invention;

[0026] Figure 3 This is a right-side cross-sectional view of a wind turbine anti-deformation end cap according to the present invention.

[0027] Figure 4 This utility model relates to an anti-deformation end cap for a wind turbine generator. Figure 3 Enlarged view of point A in the middle.

[0028] In the diagram: 1. End cap body; 2. Connecting plate; 3. Trapezoidal block; 4. Outer ring; 5. Inner ring; 6. Outer abutment rod; 7. Fixing block; 8. Fixing bolt; 9. Heat dissipation hole; 10. Bearing hole; 11. Mounting hole; 12. Filter frame; 13. Locking bolt; 14. Filter screen. Detailed Implementation

[0029] Please see Figure 1-4 This utility model provides a technical solution: a wind turbine anti-deformation end cap, including an end cap body 1, a connecting plate 2 welded to one side of the end cap body 1, four trapezoidal blocks 3 arranged on the inner side of the connecting plate 2, an outer ring 4 and an inner ring 5 welded to the outer wall of the end cap body 1, four outer abutment rods 6 welded to the inner wall of the outer ring 4 and the outer wall of the inner ring 5, the four outer abutment rods 6 are arranged in a trapezoidal shape, and the vertical section of the outer abutment rod 6 near the outer ring 4 is smaller than the vertical section of the outer abutment rod 6 near the inner ring 5;

[0030] Two heat dissipation holes 9 are respectively opened in the inner wall of the connecting plate 2 and the end cover body 1. Each set of heat dissipation holes 9 is interconnected and arranged in a Z-shape. Two sets of filter frames 12 are fixedly installed on the outer wall of the end cover body 1 located on one side of the two sets of heat dissipation holes 9 by locking bolts 13. Each set of filter frames 12 has a filter screen 14 fixedly installed on the inner wall of the inner wall of the filter frame 12.

[0031] In the technical solution of this utility model, the end cover body 1 is installed at the end of the generator, and four trapezoidal blocks 3 slide into the middle cylinder. With the cooperation of the trapezoidal blocks 3, the middle cylinder is supported internally to prevent deformation. The end cover body 1 is subjected to an outward resistance force. Then, four outer abutment rods 6 are set between the inner ring 5 and the outer ring 4. The outer abutment rods 6 are trapezoidal to provide inward support to the middle part of the end cover body 1, thereby further enabling the end cover body 1 to play a role in preventing deformation.

[0032] In addition, the heat dissipation holes 9 facilitate heat dissipation inside the generator. When the end cover body 1 is installed, the Z-shaped heat dissipation holes 9 have a high inner side and a low outer side, which can prevent liquid from entering the generator. The filter frame 12 can be installed on the outer wall of the end cover body 1 by the locking bolts 13. The filter frame 12 can fix the filter screen 14, and the filter screen 14 can filter the heat dissipation holes 9.

[0033] In the technical solution of this utility model, such as Figure 2 As shown, four trapezoidal blocks 3 are respectively welded to two sides of a fixing block 7. Each fixing block 7 is fixedly installed to the connecting plate 2 by fixing bolts 8. The trapezoidal blocks 3 can fix the fixing blocks 7, and the fixing bolts 8 can fix the fixing blocks 7 and the trapezoidal blocks 3 to the inside of the connecting plate 2.

[0034] In the technical solution of this utility model, such as Figure 1 and Figure 2 As shown, bearing holes 10 are provided in the inner wall of the connecting plate 2 and the end cover body 1. The bearing holes 10 facilitate the installation of the output shaft. Four mounting holes 11 are provided in the inner wall of the end cover body 1. The mounting holes 11 facilitate the installation of the end cover body 1 and the middle cylinder.

[0035] In the technical solution of this utility model, such as Figure 1 and Figure 2 As shown, the connecting disc 2, end cap body 1, trapezoidal block 3 and outer abutment rod 6 are made of ductile iron. Because the connecting disc 2, end cap body 1, trapezoidal block 3 and outer abutment rod 6 are made of ductile iron, they have high impact toughness, elongation and low brittle transition temperature.

[0036] In use, the end cap body 1 can first be positioned with the middle cylinder body through the mounting hole 11 to ensure that the mounting hole 11 matches the installation position of the middle cylinder body. The connecting plate 2 is welded to one side of the end cap body 1 to ensure that the connecting plate 2 is stable. The four trapezoidal blocks 3 are fixed to the inside of the connecting plate 2 through the fixing block 7 and fixing bolt 8. The trapezoidal blocks 3 slide into the middle cylinder to provide internal support for the middle cylinder.

[0037] Outer ring 4 and inner ring 5 are welded to the outer wall of end cap body 1 to ensure that they are firmly connected to end cap body 1. Four outer abutment rods 6 are welded between outer ring 4 and inner ring 5. The outer abutment rods 6 are arranged in a trapezoidal shape, and the vertical section near outer ring 4 is smaller than the vertical section near inner ring 5 to provide inward support force.

[0038] Bearing holes 10 are made in the inner walls of the connecting plate 2 and the end cover body 1 to install the output shaft;

[0039] Two Z-shaped heat dissipation holes 9 are opened in the inner wall of the connecting plate 2 and the end cover body 1. Each set of heat dissipation holes 9 is interconnected to assist the internal heat dissipation of the generator. Heat conduction plates can be installed in the middle cylinder of the generator for heat dissipation.

[0040] Two sets of filter frames 12 are installed on the outer wall of the end cap body 1 by locking bolts 13. Filter screens 14 are fixed inside the filter frames 12 to filter dust and impurities entering the heat dissipation holes 9.

[0041] The four trapezoidal blocks 3 slide into the middle cylinder, providing internal support and effectively preventing deformation of the middle cylinder. The outer abutment rod 6 is trapezoidal in shape, providing inward support to the end cap body 1, further enhancing the end cap's anti-deformation capability.

[0042] The Z-shaped heat dissipation holes 9 allow for efficient heat dissipation from inside the generator while preventing liquid from entering the generator.

[0043] The combination of filter frame 12 and filter screen 14 effectively filters dust and impurities entering the heat dissipation hole 9, ensuring that the heat dissipation hole 9 is unobstructed.

[0044] The end cap body 1 is positioned and installed with the middle cylinder through the mounting hole 11, which simplifies the installation process. The filter frame 12 is installed on the outer wall of the end cap body 1 through the locking bolt 13, which facilitates the disassembly and replacement of the filter screen 14 and reduces maintenance costs.

[0045] The connecting plate 2, end cap body 1, trapezoidal block 3 and outer abutment rod 6 are made of ductile iron, which has high impact toughness, elongation and low brittle transition temperature, ensuring the reliability and durability of the components.

Claims

1. A deformation-resistant end cap for a wind turbine generator, characterized in that: The end cap body (1) is included. A connecting plate (2) is welded to one side of the end cap body (1). Four trapezoidal blocks (3) are arranged on the inner side of the connecting plate (2). An outer ring (4) and an inner ring (5) are welded to the outer wall of the end cap body (1). Four outer abutments (6) are welded to the inner wall of the outer ring (4) and the outer wall of the inner ring (5). The four outer abutments (6) are arranged in a trapezoidal shape, and the vertical section of the outer abutment (6) near the outer ring (4) is smaller than the vertical section of the outer abutment (6) near the inner ring (5).

2. The anti-deformation end cap for a wind turbine generator according to claim 1, characterized in that, Each of the four trapezoidal blocks (3) has a fixing block (7) welded to its two sides, and each fixing block (7) is fixedly installed to the connecting plate (2) by fixing bolts (8).

3. The anti-deformation end cap for a wind turbine generator according to claim 1, characterized in that, Bearing holes (10) are provided in the inner walls of the connecting plate (2) and the end cap body (1).

4. The anti-deformation end cap for a wind turbine generator according to claim 1, characterized in that, Two heat dissipation holes (9) are respectively opened in the inner wall of the connecting plate (2) and the end cover body (1). Each group of heat dissipation holes (9) is interconnected and arranged in a Z-shape.

5. The anti-deformation end cap for a wind turbine generator according to claim 4, characterized in that, Two sets of filter frames (12) are fixedly installed on the outer wall of the end cap body (1) located on one side of the two sets of heat dissipation holes (9) by locking bolts (13).

6. The anti-deformation end cap for a wind turbine generator according to claim 5, characterized in that, Each filter frame (12) has a filter screen (14) fixedly installed on its inner wall.

7. The anti-deformation end cap for a wind turbine generator according to claim 1, characterized in that, The end cap body (1) has four mounting holes (11) on its inner wall.

8. The anti-deformation end cap for a wind turbine generator according to claim 1, characterized in that, The connecting plate (2), end cap body (1), trapezoidal block (3) and outer abutment rod (6) are made of ductile iron.

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