Wind power main shaft support connecting piece with anticorrosive coating

Abstract

The utility model discloses a wind power main shaft support connecting piece with anticorrosive coating, including connecting piece, main shaft stem and mounting seat, the connecting piece is composed of first mounting plate and second mounting plate, the first mounting plate is welded on the upside of main shaft stem, the second mounting plate is welded on the upside of mounting seat, be provided with positioning mechanism between the first mounting plate and second mounting plate, the upside corresponding position of first mounting plate and second mounting plate all is provided with screw hole, the screw hole inside is equipped with screw rod through the thread rotation, the connecting piece outside installation is by the protective sleeve, the protective sleeve of the utility model connecting piece outside provides basic protection for connecting part, its advantage is through the welding guaranteeing mounting plate and main shaft stem, mounting seat's initial connection intensity, positioning mechanism cooperation screw rod fastening can significantly improve the precision and stability of connection, avoid the deviation in the connecting process, and the protective sleeve then resists external environmental interference in advance for the core connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine main shaft support technology, specifically a wind turbine main shaft support connector with an anti-corrosion coating. Background Technology

[0002] The wind turbine main shaft support connector is a core component that connects the wind turbine main shaft to the support structure (such as bearing housing and frame). It can transmit the main shaft torque and radial / axial loads, while compensating for installation errors and operating vibrations, ensuring stable rotation of the main shaft.

[0003] Chinese Patent No. 202121906246.7 discloses a shaft connector, including a fixing mechanism and a rotating shaft. The fixing mechanism includes a fixing plate for connecting external structural components and a transition plate connected to the fixing plate at one end. The plate surface of the transition plate is set at a predetermined angle with the plate surface of the fixing plate. The side surface of the rotating shaft abuts against one side surface of the transition plate. The other end of the transition plate is bent around the circumference of the rotating shaft and partially wraps around the rotating shaft to form a limiting sleeve. The rotating shaft is rotatably connected to the limiting sleeve.

[0004] This utility model offers strong protection during use, but corrosion may occur at the connection points after prolonged use, affecting the lifespan of the spindle. Utility Model Content

[0005] The purpose of this invention is to provide a wind turbine main shaft support connector with an anti-corrosion coating to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine main shaft support connector with an anti-corrosion coating, comprising a connector, a main shaft, and a mounting base. The connector is composed of a first mounting plate and a second mounting plate. The first mounting plate is welded to the upper side of the main shaft, and the second mounting plate is welded to the upper side of the mounting base. A positioning mechanism is provided between the first mounting plate and the second mounting plate. Screw holes are provided at corresponding positions on the upper sides of the first mounting plate and the second mounting plate. A screw is installed inside the screw hole by rotating it through a thread. A protective sleeve is installed on the outer side of the connector.

[0007] The protective mechanism consists of a protective sleeve and a fixing plate. The protective sleeve is fitted over the outside of the connector, and the fixing plate is installed on both sides of the protective sleeve. The protective sleeves are fixed together by bolts.

[0008] Both the protective sleeve and the fixing plate have rubber pads on their inner sides, which are then attached to the inner sides of the protective sleeve and the fixing plate with adhesive.

[0009] The protective sleeve and fixing plate are provided with a corrosion-resistant layer on the outside, and the corrosion-resistant layer is a chrome-plated layer.

[0010] A soft metal pad is provided between the first mounting plate and the second mounting plate, and the soft metal pad is welded to one side of the first mounting plate.

[0011] The positioning mechanism consists of a protrusion and a groove. The groove is located on the upper side of the second mounting plate, and the protrusion is located on the upper side of the first mounting plate. The protrusion is embedded inside the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The protective sleeve on the outside of the connector provides basic protection for the connection. Its advantages are that welding ensures the initial connection strength between the mounting plate and the main shaft and mounting base, and the positioning mechanism, together with the screw fastening, can significantly improve the accuracy and stability of the connection, avoiding displacement during the connection process. The protective sleeve also protects the core connection structure from external environmental interference in advance. 2. The protective sleeve is directly fitted over the outside of the connector to form a closed protective space. The fixing plates on both sides are fixed to the protective sleeve as a whole with bolts, so that the protective sleeve fits tightly against the connector and forms a comprehensive physical barrier. Its advantages are that the fixing plates fixed with bolts can ensure that the protective sleeve is firmly installed and is not easy to loosen due to vibration during the operation of wind power equipment. The overall structure can effectively prevent dust, water vapor and other impurities from directly contacting the connector, thus improving the reliability of protection. 3. When the screw is tightened, the soft metal pad is compressed due to its own ductility, filling the tiny gap between the two mounting plates, making the contact tighter. At the same time, when stress is generated during equipment operation, it releases stress through slight deformation. Its advantages are that the compression deformation of the soft metal pad can eliminate connection gaps, improving the overall sealing and rigidity of the connection; the stress release function can reduce wear or deformation caused by rigid contact between the two mounting plates, enhancing the durability of the connection. 4. When connecting the first and second mounting plates, the protrusions precisely embed into the grooves, forming a mechanical limit, ensuring that the screw holes and other key parts of the two mounting plates are completely aligned, avoiding misalignment during assembly. Its advantages include rapid positioning of the two mounting plates, improving assembly efficiency; the mechanical limit structure can distribute the force on the screw when the equipment is subjected to torque or impact during operation, preventing damage to the screw due to excessive force and enhancing the overall load-bearing capacity of the connection. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the protective sleeve of this utility model; Figure 3This is a schematic diagram of the internal structure of the protective sleeve of this utility model; Figure 4 This is a schematic diagram of the main shaft of this utility model; Figure 5 This is a structural schematic diagram of the mounting base of this utility model.

[0014] In the diagram: 1. Connector; 2. First mounting plate; 3. Second mounting plate; 4. Soft metal pad; 5. Spindle; 6. Mounting seat; 7. Screw hole; 8. Protrusion; 9. Positioning mechanism; 10. Groove; 11. Protective mechanism; 12. Corrosion-resistant layer; 13. Rubber pad; 14. Protective sleeve; 15. Fixing plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 In this embodiment of the utility model, a wind turbine main shaft support connector with anti-corrosion coating includes a connector 1, a main shaft 5, and a mounting base 6. The connector 1 is composed of a first mounting plate 2 and a second mounting plate 3. The first mounting plate 2 is welded to the upper side of the main shaft 5, and the second mounting plate 3 is welded to the upper side of the mounting base 6. A positioning mechanism 9 is provided between the first mounting plate 2 and the second mounting plate 3. Screw holes 7 are provided at corresponding positions on the upper sides of the first mounting plate 2 and the second mounting plate 3. A screw is installed inside the screw hole 7 by rotating the screw through the thread. A protective sleeve 14 is installed on the outer side of the connector 1.

[0017] The protective mechanism 11 consists of a protective sleeve 14 and a fixing plate 15. The protective sleeve 14 is fitted over the outside of the connector 1, and the fixing plate 15 is installed on both sides of the protective sleeve 14. The protective sleeves are fixed together by bolts. The protective sleeve 14 directly fits over the outside of the connector 1 to form a closed protective space. The fixing plates 15 on both sides are fixed to the protective sleeve 14 as a whole by bolts, so that the protective sleeve 14 fits tightly against the connector 1, forming an all-round physical barrier. The fixing plates 15 fixed by bolts ensure that the protective sleeve 14 is firmly installed and is not easy to loosen due to vibration during the operation of wind power equipment. The overall structure can effectively prevent dust, water vapor and other impurities from directly contacting the connector 1, improving the reliability of protection. Rubber pads 13 are provided on the inner side of both the protective sleeve 14 and the fixing plate 15. The rubber pads 13 are attached to the inner side of the protective sleeve 14 and the fixing plate 15 with adhesive. The rubber pads 13 use their own elasticity to tightly fill the gaps between the protective sleeve 14, the fixing plate 15 and the connector 1, and absorb the impact force through elastic deformation when the equipment vibrates. The sealing performance of the rubber pad 13 further enhances the protective effect, preventing the infiltration of minute impurities. Its elastic properties buffer vibrations that could damage the protective structure and connector 1, extending the service life of the components. Furthermore, the adhesive bonding method ensures that the rubber pad 13 is not easily detached, providing strong stability. A corrosion-resistant layer 12 is provided on the outer side of the protective sleeve 14 and the fixing plate 15; this layer is a chrome-plated layer. As a chemically stable metal plating, the chrome plating layer isolates the protective sleeve 14 and the fixing plate 15 from direct contact with external corrosive media such as rainwater, moisture, and industrial exhaust gases, preventing oxidation or chemical reactions of the substrate. The chrome plating layer has extremely high corrosion resistance and wear resistance, enabling it to adapt to the complex and harsh outdoor environment of wind power equipment, significantly improving the anti-aging ability of the protective mechanism 11 and reducing maintenance frequency.

[0018] A soft metal pad 4 is disposed between the first mounting plate 2 and the second mounting plate 3, and the soft metal pad 4 is welded to one side of the first mounting plate 2. When the screw is tightened, the soft metal pad 4 is compressed due to its own ductility, filling the tiny gap between the two mounting plates, making the contact tighter. At the same time, when stress is generated during equipment operation, it releases stress through slight deformation. Its advantages are that the compression deformation of the soft metal pad 4 can eliminate connection gaps, improve the overall sealing and rigidity of the connection; the stress release function can reduce wear or deformation caused by rigid contact between the two mounting plates, and enhance the durability of the connection.

[0019] The positioning mechanism 9 consists of a protrusion 8 and a groove 10. The groove 10 is located on the upper side of the second mounting plate 3, and the protrusion 8 is located on the upper side of the first mounting plate 2. The protrusion 8 is embedded inside the groove 10. When connecting the first mounting plate 2 and the second mounting plate 3, the protrusion 8 is precisely embedded in the groove 10, forming a mechanical limit, ensuring that key parts such as the screw holes 7 of the two mounting plates are completely aligned, avoiding misalignment during assembly. It can quickly achieve the positioning of the two mounting plates, improving assembly efficiency; the mechanical limit structure can distribute the force on the screw when the equipment is subjected to torque or impact during operation, preventing the screw from being damaged due to excessive force, and improving the overall load-bearing capacity of the connection.

[0020] The working principle and usage process of this utility model are as follows: A stable connection between the main spindle 5 and the mounting base 6 is achieved through the connecting component 1. The connecting component 1 consists of a first mounting plate 2 and a second mounting plate 3. The first mounting plate 2 is welded to the upper side of the main spindle 5, and the second mounting plate 3 is welded to the upper side of the mounting base 6. Initial precise alignment is achieved through a positioning mechanism 9, followed by tightening via screw rotation in the corresponding screw holes 7 to form a rigid connection. Simultaneously, the protective sleeve 14 on the outer side of the connecting component 1 provides basic protection for the connection. Its advantages include: welding ensures the initial connection strength between the mounting plate and the main spindle 5 and mounting base 6; the positioning mechanism 9, combined with screw tightening, significantly improves the accuracy and stability of the connection, preventing misalignment during the connection process; and the protective sleeve 14 protects the core connection structure from external environmental interference.

[0021] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A wind turbine main shaft support connector with an anti-corrosion coating, comprising a connector (1), a main shaft (5), and a mounting base (6): characterized in that: The connector (1) consists of a first mounting plate (2) and a second mounting plate (3). The first mounting plate (2) is welded to the upper side of the main shaft (5), and the second mounting plate (3) is welded to the upper side of the mounting base (6). A positioning mechanism (9) is provided between the first mounting plate (2) and the second mounting plate (3). Screw holes (7) are provided at corresponding positions on the upper sides of the first mounting plate (2) and the second mounting plate (3). A screw is installed inside the screw hole (7) by rotating the screw through the thread. A protective sleeve (14) is installed on the outside of the connector (1).

2. The wind turbine main shaft support connector with anti-corrosion coating according to claim 1, characterized in that: It also includes a protective mechanism (11), which consists of a protective sleeve (14) and a fixing plate (15). The protective sleeve (14) is fitted on the outside of the connector (1), and the fixing plate (15) is installed on both sides of the protective sleeve (14). The protective sleeves (14) are fixedly installed together by bolts.

3. A wind turbine main shaft support connector with anti-corrosion coating according to claim 2, characterized in that: Rubber pads (13) are provided on the inner sides of both the protective sleeve (14) and the fixing plate (15), and the rubber pads (13) are attached to the inner sides of the protective sleeve (14) and the fixing plate (15) by adhesive.

4. A wind turbine main shaft support connector with anti-corrosion coating according to claim 2, characterized in that: The protective sleeve (14) and the fixing plate (15) are provided with a corrosion-resistant layer (12) on the outside, and the corrosion-resistant layer (12) is a chrome-plated layer.

5. A wind turbine main shaft support connector with anti-corrosion coating according to claim 1, characterized in that: A soft metal pad (4) is provided between the first mounting plate (2) and the second mounting plate (3), and the soft metal pad (4) is welded to one side of the first mounting plate (2).

6. A wind turbine main shaft support connector with anti-corrosion coating according to claim 1, characterized in that: The positioning mechanism (9) consists of a protrusion (8) and a groove (10). The groove (10) is located on the upper side of the second mounting plate (3), and the protrusion (8) is located on the upper side of the first mounting plate (2). The protrusion (8) is embedded inside the groove (10).

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