Nodular cast iron end cover structure for wind power generator

Abstract

The utility model discloses a nodular cast iron end cover structure for wind power generator, including motor end cover, one side of motor end cover is connected with motor shell, the one side that motor shell is connected with motor end cover is equipped with annular groove, the inner wall fixed connection of motor end cover has sealing rubber ring, one side of sealing rubber ring is equipped with the convex ridge that is matched with annular groove shape, in the utility model, one side of motor end cover is connected with motor shell, and one side of motor shell is equipped with annular groove, and the inner wall of motor end cover is fixed with sealing rubber ring, one side of sealing rubber ring is equipped with convex ridge, when motor shell and motor end cover interengagement, this convex ridge can be closely matched with annular groove, realizes sealing function, prevents air and moisture from entering generator inside, in addition, through manual rotation screw rod, can make it continuous extrusion soft washer, thereby strengthens the extrusion intensity between convex ridge and annular groove.

Description

Technical Field

[0001] This utility model relates to the field of generator technology, specifically to a ductile iron end cap structure for wind turbine generators. Background Technology

[0002] Ductile iron end caps are critical electromechanical structural components in wind turbine generators, primarily used to protect internal components and ensure equipment stability and safety. Ductile iron possesses excellent mechanical properties, particularly in tensile strength, wear resistance, and impact resistance, making it suitable for environments subject to high pressure and vibration. End caps are typically designed as closed or semi-closed structures, with their shape and dimensions ensured through casting processes.

[0003] However, the existing sealing design between the generator end cover and the outer casing often uses a sealing ring with a fixed installation position. The sealing ring cannot be adjusted to adjust the sealing strength of different parts according to the actual situation. Moreover, after long-term use, due to the aging of the sealing ring, gaps will appear at some points, allowing dust to enter the inside of the casing and affecting the sealing effect. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this utility model is to propose a ductile iron end cap structure for wind turbine generators. This ductile iron end cap structure for wind turbine generators achieves sealing by the cooperation of a protruding rib on one side of the sealing ring and an annular groove, preventing air and moisture from entering. Furthermore, by continuously squeezing the soft gasket with a rotating threaded rod, the squeezing strength between the protruding rib and the groove is enhanced, thereby improving the sealing strength and sealing duration.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ductile iron end cap structure for a wind turbine generator, comprising a motor end cap, a motor housing connected to one side of the motor end cap, an annular groove on the side of the motor housing connected to the motor end cap, a sealing ring fixedly connected to the inner wall of the motor end cap, a protrusion on one side of the sealing ring matching the shape of the annular groove, the protrusion tightly fitting the annular groove, a soft washer fixedly connected to the side of the sealing ring away from the protrusion, and multiple threaded rods connected to the outer wall of the motor end cap by circumferential threads, one end of each threaded rod abutting against the soft washer.

[0007] Preferably, a ventilation hole is provided on one side of the motor end cover, and a dustproof net is fixedly connected to the inner wall of the motor end cover, with the dustproof net located on one side of the ventilation hole.

[0008] Preferably, the outer wall of the motor housing and the inner wall of the motor end cover are both provided with threaded grooves that are mutually threaded.

[0009] Preferably, the outer wall of the motor end cover is symmetrically perforated by at least three bolts, and the bolts penetrate the outer wall of the motor housing.

[0010] Preferably, one end of the threaded rod is provided with anti-slip texture.

[0011] Preferably, the outer wall of the motor end cover is provided with a wiring box.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, when one side of the motor end cover is connected to the motor housing, the sealing ring achieves a seal by cooperating with the convex rib and the annular groove to prevent air and moisture from entering. On the side of the sealing ring away from the convex rib, multiple soft gaskets are distributed circumferentially. The outer wall of the end cover is provided with a threaded rod. The threaded rod continuously squeezes the soft gasket by rotating, which enhances the squeezing strength between the convex rib and the groove, improves the sealing strength and duration, and can be adjusted to increase the sealing effect after long-term use of the sealing ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the ductile iron end cap structure for a wind turbine generator according to an embodiment of the present utility model;

[0014] Figure 2 This is a cross-sectional structural schematic diagram of the ductile iron end cap structure for wind turbine generators according to an embodiment of the present utility model;

[0015] Figure 3 This is an embodiment of the present utility model. Figure 2 A magnified structural diagram of part A in the middle;

[0016] Figure 4 This is a schematic diagram of the sealing ring and soft gasket in the ductile iron end cap structure for wind turbine generators according to an embodiment of this utility model.

[0017] In the diagram: 1. Motor end cover; 2. Threaded rod; 3. Ventilation hole; 4. Dustproof net; 5. Cable tray; 6. Motor housing; 7. Anti-slip texture; 8. Threaded groove; 9. Bolt; 10. Soft washer; 11. Sealing ring; 12. Raised rib; 13. Annular groove. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1The present invention provides a ductile iron end cover structure for wind turbine generators, including: a motor end cover 1 and a motor housing 6.

[0020] Among them, such as Figure 1 and Figure 2 As shown, the motor housing 6 is connected to one side of the motor end cover 1. The side of the motor housing 6 connected to the motor end cover 1 is provided with an annular groove 13. A sealing ring 11 is fixedly connected to the inner wall of the motor end cover 1. A protrusion 12 that matches the shape of the annular groove 13 is provided on one side of the sealing ring 11. The protrusion 12 fits tightly with the annular groove 13. One side of the motor end cover 1 is connected to the motor housing 6. The motor housing 6 is provided with an annular groove 13 on one side, while the inner wall of the motor end cover 1 is fixed with a sealing ring 11. A protrusion 12 is provided on one side of the sealing ring 11. When the motor housing 6 and the motor end cover 1 are spliced ​​together, the protrusion 12 can fit tightly with the annular groove 13, realizing the sealing function and preventing air and moisture from entering the generator.

[0021] Furthermore, a ventilation hole 3 is provided on one side of the motor end cover 1, and a dustproof net 4 is fixedly connected to the inner wall of the motor end cover 1. The dustproof net 4 is located on one side of the ventilation hole 3. The ventilation hole 3 provides a heat dissipation channel inside the generator. The dustproof net 4 is located on one side of the ventilation hole 3, which can effectively prevent dust and debris from entering the generator, ensure long-term stable operation of the generator, and extend its service life.

[0022] like Figure 2 As shown, the outer wall of the motor housing 6 and the inner wall of the motor end cover 1 are both provided with threaded grooves 8 that are mutually threaded. The threaded grooves 8 fix the motor end cover 1 and the motor housing 6 together through the threaded connection, ensuring the sealing and stability of each component of the generator. In addition, no less than three bolts 9 are symmetrically passed through the outer wall of the motor end cover 1, and the bolts 9 pass through the outer wall of the motor housing 6. After the motor end cover 1 and the motor housing 6 are rotated and threadedly connected through the threaded grooves 8, they can also be fixed by the bolts 9.

[0023] In this embodiment, as Figures 1-4 As shown, multiple soft washers 10 are distributed circumferentially on the side of the sealing ring 11 away from the protrusion 12. Multiple threaded rods 2 are connected circumferentially to the outer wall of the motor end cover 1, and one end of each threaded rod 2 abuts against the soft washer 10. Multiple soft washers 10 are distributed circumferentially on the side of the sealing ring 11 away from the protrusion 12. Multiple threaded rods 2 are also provided on the outer wall of the motor end cover 1. These threaded rods 2 can move and squeeze the soft washer 10 by rotation. By manually rotating the threaded rods 2, they can continuously squeeze the soft washer 10, thereby strengthening the compression strength between the protrusion 12 and the annular groove 13.

[0024] Furthermore, one end of the threaded rod 2 is provided with anti-slip grooves 7, which provide stronger friction and prevent the threaded rod 2 from slipping or loosening during rotation or installation.

[0025] like Figure 1 As shown, the outer wall of the motor end cover 1 is provided with a wiring box 5. The wiring box 5 is used to organize and protect the electrical wiring on the motor end cover 1, effectively preventing the wires from rubbing against or being damaged by other components, and making the generator look cleaner.

[0026] Based on the above technical solution, the working steps of this solution are summarized as follows: In this utility model, one side of the motor end cover 1 is connected to the motor housing 6. One side of the motor housing 6 is provided with an annular groove 13, while the inner wall of the motor end cover 1 is fixed with a sealing ring 11. One side of the sealing ring 11 is provided with a protrusion 12. When the motor housing 6 and the motor end cover 1 are spliced ​​together, the protrusion 12 can fit tightly with the annular groove 13 to achieve the sealing function and prevent air and moisture from entering the generator.

[0027] On the side of the sealing ring 11 away from the protrusion 12, a soft washer 10 is fixedly connected. The outer wall of the motor end cover 1 is also provided with multiple threaded rods 2. These threaded rods 2 rotate and move to squeeze the soft washer 10, thereby continuously squeezing the soft washer 10 and strengthening the squeezing strength between the protrusion 12 and the annular groove 13. Especially after the sealing ring has been used for a long time, the sealing ring 11 can be readjusted by rotating the threaded rods 2 to increase the sealing strength and increase the sealing duration.

[0028] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ductile iron end cap structure for a wind turbine generator, characterized in that, Including the motor end cover (1): One side of the motor end cover (1) is connected to the motor housing (6). The side of the motor housing (6) connected to the motor end cover (1) is provided with an annular groove (13). The inner wall of the motor end cover (1) is fixedly connected to a sealing ring (11). One side of the sealing ring (11) is provided with a protrusion (12) that matches the shape of the annular groove (13). The protrusion (12) fits tightly with the annular groove (13). The side of the sealing ring (11) away from the protrusion (12) is fixedly connected to a soft washer (10). The outer wall of the motor end cover (1) is connected with multiple threaded rods (2) in a circumferential thread, and one end of the threaded rod (2) abuts against the soft washer (10).

2. The ductile iron end cap structure for wind turbine generators according to claim 1, characterized in that: The motor end cover (1) has a ventilation hole (3) on one side, and a dustproof net (4) is fixedly connected to the inner wall of the motor end cover (1). The dustproof net (4) is located on one side of the ventilation hole (3).

3. The ductile iron end cap structure for wind turbine generators according to claim 1, characterized in that: The outer wall of the motor housing (6) and the inner wall of the motor end cover (1) are both provided with threaded grooves (8) that are mutually threaded.

4. The ductile iron end cap structure for wind turbine generators according to claim 1, characterized in that: The outer wall of the motor end cover (1) is symmetrically perforated by at least three bolts (9), and the bolts (9) penetrate the outer wall of the motor housing (6).

5. The ductile iron end cap structure for wind turbine generators according to claim 1, characterized in that: One end of the threaded rod (2) is provided with anti-slip grooves (7).

6. The ductile iron end cap structure for wind turbine generators according to claim 1, characterized in that: The outer wall of the motor end cover (1) is provided with a wiring box (5).

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