High-strength bolt for wind power generation

Abstract

The utility model provides a high-strength bolt for wind power generation, which belongs to the field of bolts, and comprises a screw cap, a threaded rod, a nut, a protection mechanism and a locking mechanism, in the scheme, a gasket and an anti-skid groove are arranged, a flat gasket is tightly connected with an object, the contact area can be increased, the contact area of the screw and the object is small, and the bolt is convenient to use. In order to enable the screw and an object to be locked more firmly, a gasket is used for increasing the contact area of the screw, a high-strength bolt is mainly fixed through friction in use, and in order to increase the friction force between the bolt and the object, the friction force can be greatly improved by adopting the gasket mode. And one end of the locking screw abuts against the threaded rod, so that rotation of the nut is prevented, and the problems that in the prior art, wind power generation equipment is prone to being scratched by a cone in the using process of a bolt, consequently, the wind power generation equipment is rusted, and the service life of the wind power generation equipment is shortened can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of bolts, and in particular relates to a high-strength bolt for wind power generation. Background Art

[0002] In recent years, with the development of the new energy industry, my country's total installed capacity of wind power generation equipment has continued to grow, and an increasing number of wind turbine towers have been put into construction. Wind turbine towers are tall, and for ease of installation, they are typically assembled from different sections, connected by flanges and high-strength connectors.

[0003] The authorization publication number "CN211082518U" records "a high-strength bolt connection pair for a wind power tower, whose technical solution includes bolts and nuts, and the bolts include nuts and a first screw rod, and the nuts are provided with one or more welding parts on the side facing the connected part. The advantage of the utility model is that it enhances the connection strength between the connected part and the connection pair, avoids failure of the connection pair due to loose bolt connection, and improves its reliability of use."

[0004] The above patent enhances the connection strength between the connected parts and the connecting pair, but the above patent is prone to the cone scratching the wind power generation equipment during use, thereby causing the wind power generation equipment to rust, thereby reducing the service life of the wind power generation equipment. Utility Model Content

[0005] The purpose of the utility model is to provide a high-strength bolt for wind power generation, aiming to solve the problem in the prior art that the bolts are easily scratched by the cone during use, thereby causing the wind power generation equipment to rust and reducing the service life of the wind power generation equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-strength bolt for wind power generation, comprising:

[0008] Nut;

[0009] A threaded rod, located on top of the nut;

[0010] a nut having threads connected thereto;

[0011] a guard mechanism disposed on the threaded rod; and

[0012] The locking mechanism is arranged on the nut.

[0013] As a preferred solution of the present invention, the protective mechanism includes a gasket and an anti-slip groove. There are two gaskets, both of which are movably mounted on the threaded rod, and both gaskets are located between the nuts. There are multiple anti-slip grooves, and the multiple anti-slip grooves are respectively opened on the two gaskets, and the multiple anti-slip grooves are symmetrically arranged.

[0014] As a preferred solution of the present invention, the locking mechanism includes:

[0015] a locking member disposed on the nut; and

[0016] The elastic component is arranged on the nut.

[0017] As a preferred solution of the present invention, the locking component includes a threaded barrel, a locking screw and a threaded rod, the threaded barrel is threadedly connected to the threaded rod, and the threaded barrel is fixedly connected to the top of the nut, the threaded hole is opened on the circumferential surface of the threaded barrel, the locking screw is threadedly connected to the threaded hole, and one end of the locking screw presses against the threaded rod.

[0018] As a preferred solution of the present invention, the elastic component includes a rubber pad and a groove, the groove is opened at the bottom of the nut, the rubber pad is fixedly connected in the groove, and the rubber pad is movably sleeved on the threaded rod.

[0019] As a preferred solution of the present invention, the nut and the threaded rod are an integrally formed structure.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this solution, the locking screw is threadedly connected to the threaded hole, and one end of the locking screw presses against the threaded rod to prevent the nut from rotating and prevent the nut from falling off automatically. The rubber pad can be set to fit tightly with one of the washers after tightening the nut. Due to the elastic properties of the rubber pad itself, the friction of the rubber pad is large, thereby limiting the rotation of the nut.

[0022] 2. In this solution, by setting up gaskets and anti-slip grooves, the flat pads and objects are tightly connected, and the contact area can be increased at the same time. The contact area between the screws and the object itself is small, so the force is also small, and it is easy to loosen. In order to make the screws and objects locked more firmly, gaskets are used to increase the contact area of ​​the screws. High-strength bolts are mainly fixed by friction when used. In order to increase the friction between the bolts and objects, the use of gaskets can greatly improve the friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is an exploded view of the rubber pad of the utility model.

[0028] In the figure: 1. Nut; 2. Washer; 3. Anti-slip groove; 4. Nut; 5. Threaded barrel; 6. Locking screw; 7. Threaded hole; 8. Rubber pad; 9. Groove; 10. Threaded rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-Figure 4 , the technical solutions provided in this embodiment are as follows:

[0032] A high-strength bolt for wind power generation consists of a nut 1, a threaded rod 10, a nut 4, a protective mechanism and a locking mechanism. The threaded rod 10 is arranged on the top of the nut 1, and the nut 4 is threadedly connected to the nut 4.

[0033] In a specific embodiment of the present invention, the threaded rod 10 is provided for threaded connection with the nut 4. The materials of the nut 1, the nut 4 and the threaded rod 10 are all made of low carbon alloy steel or medium carbon steel and are heat treated to improve the strength of the bolt.

[0034] Specifically, the protective mechanism is provided on the threaded rod 10, and the protective mechanism includes a gasket 2 and an anti-slip groove 3. There are two gaskets 2, and both gaskets 2 are movably sleeved on the threaded rod 10, and both gaskets 2 are located between the nuts 1 and the nuts 1. There are multiple anti-slip grooves 3, and the multiple anti-slip grooves 3 are respectively opened on the two gaskets 2, and the multiple anti-slip grooves 3 are symmetrically arranged.

[0035] In a specific embodiment of the present invention, by setting the gasket 2 and the anti-slip groove 3, the flat gasket and the object are tightly connected, and the contact area can be increased at the same time. The contact area between the screw and the object itself is small, so the force is also small, and it is easy to loosen. In order to make the screw and the object locked more firmly, the gasket 2 is used to increase the contact area of ​​the screw. High-strength bolts are mainly fixed by friction when used. In order to increase the friction between the bolt and the object, the use of gaskets can greatly improve the friction.

[0036] Specifically, the locking component is provided on the nut 4, and the locking component includes a threaded barrel 5, a locking screw 6 and a threaded rod 10. The threaded barrel 5 is threadedly connected to the threaded rod 10, and the threaded barrel 5 is fixedly connected to the top of the nut 4. The threaded hole 7 is opened on the circumferential surface of the threaded barrel 5, and the locking screw 6 is threadedly connected to the threaded hole 7, and one end of the locking screw 6 presses against the threaded rod 10.

[0037] In a specific embodiment of the present invention, the threaded barrel 5 is configured to open a threaded hole 7, and the threaded hole 7 is configured to be threadedly connected to a locking screw 6. The locking screw 6 is threadedly connected to the threaded hole 7, and one end of the locking screw 6 supports the threaded rod 10, thereby preventing the nut 4 from rotating on its own, so that the nut 4 will not fall off automatically.

[0038] Specifically, the elastic component is provided on the nut 4 , and the elastic component includes a rubber pad 8 and a groove 9 . The groove 9 is opened at the bottom of the nut 4 , the rubber pad 8 is fixedly connected in the groove 9 , and the rubber pad 8 is movably sleeved on the threaded rod 10 .

[0039] In a specific embodiment of the present invention, the groove 9 is provided for fixing the rubber pad 8. Through the provision of the rubber pad 8, after tightening the nut 4, the rubber pad 8 can fit tightly with one of the washers 2. Due to the elastic properties of the rubber pad 8 itself, the friction of the rubber pad 8 is large, thereby limiting the rotation of the nut 4.

[0040] Specifically, the nut 1 and the threaded rod 10 are an integrally formed structure.

[0041] In a specific embodiment of the present invention, the nut 1 and the threaded rod 10 are an integrally formed structure.

[0042] The working principle or working process of the high-strength bolt for wind power generation provided by the utility model is as follows: the locking screw 6 is threadedly connected to the threaded hole 7, and one end of the locking screw 6 presses against the threaded rod 10, thereby preventing the nut 4 from rotating on its own, so that the nut 4 will not automatically fall off. Through the provision of the rubber pad 8, after the nut 4 is tightened, the rubber pad 8 can fit tightly with one of the washers 2. Due to the elastic characteristics of the rubber pad 8 itself, the friction force of the rubber pad 8 is large, thereby limiting the rotation of the nut 4.

[0043] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-strength bolt for wind power generation, characterized in that: include: Nut (1); A threaded rod (10) is provided on the top of the nut (1); a nut (4) threadedly connected to the nut (4); A protective mechanism is provided on the threaded rod (10); A locking mechanism is provided on the nut (4); The protective mechanism comprises a gasket (2) and an anti-slip groove (3), two gaskets (2) are provided, both of the two gaskets (2) are movably sleeved on the threaded rod (10), and both gaskets (2) are located between the nuts (1), and a plurality of anti-slip grooves (3) are provided, and the plurality of anti-slip grooves (3) are respectively opened on the two gaskets (2), and the plurality of anti-slip grooves (3) are symmetrically arranged; The locking mechanism comprises: A locking component is provided on the nut (4); an elastic component provided on the nut (4); The locking component comprises a threaded barrel (5), a locking screw (6) and a threaded rod (10); the threaded barrel (5) is threadedly connected to the threaded rod (10), and the threaded barrel (5) is fixedly connected to the top of the nut (4); the threaded hole (7) is opened on the circumferential surface of the threaded barrel (5), the locking screw (6) is threadedly connected to the threaded hole (7), and one end of the locking screw (6) is against the threaded rod (10); The elastic component comprises a rubber pad (8) and a groove (9), wherein the groove (9) is formed at the bottom of the nut (4), the rubber pad (8) is fixedly connected in the groove (9), and the rubber pad (8) is movably sleeved on the threaded rod (10).

2. The high-strength bolt for wind power generation according to claim 1, characterized in that: The nut (1) and the threaded rod (10) are an integrally formed structure.

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