A high-strength, high-wear-resistant automotive nut

Abstract

This utility model relates to the field of nut technology and discloses a high-strength, high-wear-resistant automotive nut. The nut includes a nut with threaded grooves on its inner wall, multiple graphite strips on its inner wall, multiple reinforcing ribs fixedly connected inside the nut, multiple axial grooves at the top of the nut, and a flange fixedly connected to the bottom of the nut. The inner wall of the threaded grooves has a variable pitch thread, with the pitch at the top of the threaded groove slightly larger than the pitch at the bottom. The inner wall of the nut also has multiple grooves, with each graphite strip fixedly connected to the inner wall of one of the grooves. The inner diameter of the flange is slightly larger than the inner diameter of the nut. This utility model enhances product strength through the flange, multiple axial grooves, and multiple reinforcing ribs, while reducing frictional loss through the threaded grooves and graphite strips. Compared to traditional products, it significantly improves strength and wear resistance, extending the product's service life.

Description

Technical Field

[0001] This utility model relates to the field of nuts, and in particular to a high-strength, high-wear-resistant automotive nut. Background Technology

[0002] In the automotive industry, automotive nuts, as indispensable basic components, bear the important mission of connecting and fastening various key parts of a vehicle. Their performance directly affects the safety and reliability of vehicle operation. With the continuous development of the automotive industry towards higher speeds, lighter weight, and greater intelligence, more stringent requirements are being placed on the comprehensive performance of automotive nuts. Developing new high-strength, wear-resistant nut technologies has become a focus of industry attention.

[0003] Currently, traditional automotive nuts mostly use a single metal material with a one-piece molding structure, relying on the nut's own threads to cooperate with the bolt to achieve the fastening function. Its technical principle is mainly based on the mechanical interlocking effect between the threads; tightening the nut generates axial tension between the thread teeth, thereby tightly fixing the connected parts together. At the same time, some nuts undergo simple anti-rust treatments on their surface, such as zinc plating or nickel plating, to improve their corrosion resistance in complex environments.

[0004] However, traditional automotive nuts face significant challenges in practical applications. Due to the frequent vibrations, impacts, and complex, variable loads experienced by vehicles during operation, nuts with a single metal structure struggle to withstand long-term dynamic stress, easily leading to fatigue fracture and insufficient nut strength. Furthermore, the constant friction between the nut and bolt causes thread wear, reducing connection reliability and significantly shortening the nut's lifespan. This fails to meet the modern automotive industry's demands for high stability and long service life in component manufacturing. Therefore, a high-strength, high-wear-resistant automotive nut is proposed to address these issues. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a high-strength, high-wear-resistant automotive nut, which aims to improve the problem of wear or breakage that occurs after prolonged use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-strength, high-wear-resistant automotive nut includes a nut with a threaded groove on its inner wall, multiple graphite strips on its inner wall, multiple reinforcing ribs fixedly connected inside the nut, multiple axial grooves on the top of the nut, and a flange fixedly connected to the bottom of the nut.

[0008] As a further description of the above technical solution:

[0009] The inner wall of the threaded groove is a variable pitch thread, and the pitch at the top of the inner wall of the threaded groove is slightly larger than the pitch at the bottom of the inner wall of the threaded groove.

[0010] As a further description of the above technical solution:

[0011] The nut has multiple grooves on its inner wall, and each graphite strip is fixedly connected to the inner wall of the groove.

[0012] As a further description of the above technical solution:

[0013] The inner diameter of the flange is slightly larger than the inner diameter of the nut, and the outer diameter of the flange is larger than the outer diameter of the nut.

[0014] As a further description of the above technical solution:

[0015] The multiple reinforcing ribs are arranged in a linear array inside the nut, and the multiple axial grooves are arranged in a ring array at the top of the nut.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the nut is galvanized to reduce friction loss.

[0018] This utility model has the following beneficial effects:

[0019] In this invention, the product strength is enhanced by flanges, multiple axial grooves and multiple reinforcing ribs, and friction loss is reduced by using threaded grooves and graphite strips. Compared with traditional products, the product has been greatly enhanced in terms of strength and wear resistance, thus extending the product's service life. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a high-strength, high-wear-resistant automotive nut proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the flange structure of a high-strength, high-wear-resistant automotive nut proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the reinforcing rib structure of a high-strength, high-wear-resistant automotive nut proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the graphite strip structure for a high-strength, high-wear-resistant automotive nut proposed in this utility model.

[0024] Legend:

[0025] 1. Nut; 2. Flange; 3. Axial groove; 4. Threaded groove; 5. Graphite strip; 6. Reinforcing rib. Detailed Implementation

[0026] 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.

[0027] Reference Figures 1-4 This utility model provides an embodiment of a high-strength, high-wear-resistant automotive nut, comprising a nut 1, with a threaded groove 4 on the inner wall of the nut 1. The threaded groove 4, in conjunction with a variable pitch thread design, achieves radial pressure transmission during pre-tightening, enhancing thread engagement strength. Multiple graphite strips 5 are provided on the inner wall of the nut 1, filling the microscopic gaps between the threaded groove 4 and the bolt, reducing frictional loss through self-lubricating properties. Multiple reinforcing ribs 6 are fixedly connected inside the nut 1, supporting the inner wall structure of the nut 1 through a linear array distribution, suppressing the risk of radial deformation. Multiple axial grooves 3 are provided at the top of the nut 1, providing elastic deformation space through a ring array layout, evenly distributing axial load. A flange 2 is fixedly connected to the bottom of the nut 1, dispersing end-face pressure by increasing the contact area, reducing the probability of crushing of the connecting parts. The inner wall of the threaded groove 4 is a variable pitch thread. The pitch at the top of the inner wall of the groove 4 is slightly larger than the pitch at the bottom of the inner wall of the threaded groove 4. The pitch difference generates a progressive locking force, improving the anti-vibration and anti-loosening performance. The inner wall of the nut 1 has multiple grooves, and each graphite strip 5 is fixedly connected to the inner wall of the groove. The groove structure ensures the positioning stability of the graphite strip 5 and maintains long-term lubrication effect. The inner diameter of the flange 2 is slightly larger than the inner diameter of the nut 1, forming a transition guide structure to facilitate bolt alignment and installation. The outer diameter of the flange 2 is larger than the outer diameter of the nut 1, expanding the stress support surface and reducing the surface pressure of the substrate. Multiple reinforcing ribs 6 are distributed in a linear array inside the nut 1, improving the overall rigidity through uniform stress distribution and resisting torsional loads. Multiple axial grooves 3 are arranged in a ring array at the top of the nut 1, absorbing impact energy through circumferential elastic deformation. The outer wall of the nut 1 is galvanized, and the coating reduces the impact of environmental corrosion and extends the surface wear resistance cycle.

[0028] Working principle: During product use, flange 2 increases the contact area between the bottom of the product and the connecting parts, reducing the risk of local crushing. Utilizing the characteristic that the upper thread on the inner wall of the threaded groove 4 is larger than the lower thread, radial pressure is generated during pre-tightening, enhancing thread engagement. At the same time, graphite strip 5 prevents wear on the threaded groove 4 during use, which could lead to product loosening. Next, multiple reinforcing ribs 6 enhance the rigidity inside the nut 1, suppressing radial expansion under stress. Finally, multiple axial grooves 3 give the nut 1 a certain degree of elasticity, allowing for even load distribution through micro-deformation during tightening, while also enhancing impact resistance, increasing the product's strength and wear resistance, and extending its service life.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-strength, high-wear-resistant automotive nut, comprising a nut (1), characterized in that: The nut (1) has a threaded groove (4) on its inner wall, and multiple graphite strips (5) are provided on the inner wall of the nut (1). Multiple reinforcing ribs (6) are fixedly connected inside the nut (1). Multiple axial grooves (3) are provided at the top of the nut (1). A flange (2) is fixedly connected at the bottom of the nut (1).

2. The high-strength, high-wear-resistant automotive nut according to claim 1, characterized in that: The inner wall of the threaded groove (4) is a variable pitch thread, and the pitch at the top of the inner wall of the threaded groove (4) is slightly greater than the pitch at the bottom of the inner wall of the threaded groove (4).

3. The high-strength, high-wear-resistant automotive nut according to claim 1, characterized in that: The nut (1) has multiple grooves on its inner wall, and each graphite strip (5) is fixedly connected to the inner wall of the groove.

4. The high-strength, high-wear-resistant automotive nut according to claim 1, characterized in that: The inner diameter of the flange (2) is slightly larger than the inner diameter of the nut (1), and the outer diameter of the flange (2) is larger than the outer diameter of the nut (1).

5. A high-strength, high-wear-resistant automotive nut according to claim 1, characterized in that: The multiple reinforcing ribs (6) are arranged in a straight array inside the nut (1), and the multiple axial grooves (3) are arranged in a ring array at the top of the nut (1).

6. A high-strength, high-wear-resistant automotive nut according to claim 1, characterized in that: The outer wall of the nut (1) is galvanized to reduce friction loss.

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