Anti-vibration anti-loose flange wedge lock nut

Abstract

An anti-vibration anti-loose flange wedge lock nut is composed of a wedge nut body (1) and a sleeve nut body (2). A bolt (3) and a bolt thread (9); the wedge nut (1) is structurally provided with an arc-shaped wedge table (4), a flange base (5), a wedge nut thread (7) and a wedge table angle (r); the sleeve nut (2) is structurally provided with a wedge groove (6), a wedge groove angle (m) and a sleeve nut thread (8); the fastening object (10) is clamped when the wedge nut (1) and the sleeve nut (2) are fastened with the bolt (3). The anti-vibration and anti-loosening flange wedge lock nut is an upgraded version (patent number: 2020212072105), a flange base (5) is additionally arranged at the bottom of a wedge nut (1), so that the contact area between the wedge nut (1) and a fastening object (10) is increased in the actual application process of the nut, and the anti-loosening fastening performance of the anti-vibration and anti-loosening flange wedge lock nut is better improved.

Description

Technical Field

[0001] "Anti-vibration and anti-loosening flange wedge lock nut" is a new type of nut anti-loosening fastening technology mainly used in various mechanical equipment. It enhances the anti-loosening and fastening performance of nuts during long-term vibration and high-frequency, strong vibration. Background Technology

[0002] The "vibration-resistant and anti-loosening flange wedge lock nut" is a technological upgrade of the "vibration-resistant and anti-loosening wedge lock nut" (authorized utility model patent number: 2020212072105) developed by Mr. Huang Linchuan.

[0003] The "vibration-resistant and anti-loosening flange wedge lock nut" technology inherits the wedge fastening principle from China's five-thousand-year-old traditional craftsmanship. This allows the nut to achieve both vertical and horizontal fastening, giving it superior vibration-resistant and anti-loosening performance.

[0004] The "vibration-resistant and anti-loosening wedge lock nut" underwent high-frequency vibration tests on various specifications and models at the General Parts Quality Supervision and Inspection Center in accordance with the "Transverse Vibration Test Standard" (GB / T 10431 2008). The test data showed that the tightness and stability of the wedge lock nut reached 95%-99%.

[0005] The "Anti-vibration and Anti-loosening Flange Wedge Lock Nut" is an upgraded version of the wedge lock nut designed based on actual needs. It is based on the original patented technology "Anti-vibration and Anti-loosening Wedge Lock Nut". A flange base (5) is added to the bottom of the wedge nut (1). This increases the contact area between the wedge nut (1) and the fastened object (10) in actual application, thereby better improving the anti-loosening and fastening performance of the "Anti-vibration and Anti-loosening Flange Wedge Lock Nut". Summary of the Invention

[0006] The structure of the "vibration-resistant and anti-loosening flange wedge lock nut" consists of two parts: a wedge nut (1) and a sleeve nut (2); a bolt (3) and a bolt thread (9); the structure of the wedge nut (1) has an arc-shaped wedge platform (4), a flange base (5), a wedge nut thread (7), and a wedge platform angle (r); the structure of the sleeve nut (2) has a wedge groove (6), a wedge groove angle (m), and a sleeve nut thread (8); the fastening object (10) is the object clamped when the wedge nut (1) and the sleeve nut (2) are fastened to the bolt (3).

[0007] The fastening principle of the "vibration-resistant and anti-loosening flange wedge lock nut" is as follows: First, screw the wedge nut (1) onto the bolt (3). After clamping the fastening object (10), tighten it to 70%-75% according to the standard torque of different specifications and models of nuts. Then, screw the sleeve nut (2) onto the bolt (3). The two nuts, wedge nut (1) and sleeve nut (2), are screwed together. The sleeve nut (2) is tightened to 100% according to the standard torque of different specifications and models of nuts. In this way, the wedge nut (1), sleeve nut (2) and bolt (3) achieve both vertical and horizontal fastening.

[0008] The wedge angle (r) of the arc wedge (4) on the wedge nut (1) is the same as the wedge groove angle (m) in the wedge groove (6) of the sleeve nut (2). When the wedge nut (1) and the sleeve nut (2) are fastened to each other, the inclined surface of the arc wedge (4) and the inclined surface of the wedge groove (6) are matched. Thus, the "vibration-resistant and anti-loosening flange wedge lock nut" achieves both vertical and horizontal fastening, thereby realizing the principle of "cross-tightening". In this way, the "vibration-resistant and anti-loosening flange wedge lock nut" has super strong vibration-resistant and anti-loosening performance. Even during long-term high-frequency strong vibration, the flange wedge lock nut is not easy to loosen. The arc of the arc wedge (4) on the wedge nut (1) is less than or equal to 180 degrees. Attached Figure Description

[0009] Figure 1 Cross-sectional view of the flange wedge lock nut fastening principle;

[0010] Figure 2 Side view of flange wedge lock nut;

[0011] Figure 3 Flanged wedge lock nut structure diagram;

[0012] Figure 4 Flange wedge lock nut sleeve nut (2) bottom view;

[0013] Figure 5 Flange wedge lock nut wedge nut (1) Top view;

[0014] Figure 6 Front view of flange wedge lock nut (1);

[0015] The markings in the figure are: wedge nut (1); sleeve nut (2); bolt (3); arc wedge (4); flange base (5); wedge groove (6); wedge nut thread (7); sleeve nut thread (8); bolt thread (9); fastening object (10); wedge angle (r); wedge groove angle (m). Detailed Implementation

[0016] "Anti-vibration and anti-loosening flange wedge lock nuts" are mainly produced by two processes: one is through CNC precision machining; the other is through flange wedge lock nut mold pressing process.

[0017] The "vibration-resistant and anti-loosening flange wedge lock nut" is manufactured using CNC precision machining technology. This technology can be performed on CNC lathes, CNC milling machines, CNC milling-turning composite machines, or CNC Swiss-type machine tools. This process offers high precision but also has a slightly higher cost, and is primarily used in high-end, precision machinery equipment, such as those used in aviation, aerospace, high-speed rail locomotives, and other precision equipment.

[0018] The "vibration-resistant and anti-loosening flange wedge lock nut" mold pressing process involves customizing various molds for different types of flange wedge lock nuts. Each mold is divided into a mold for the wedge nut (1) and a mold for the sleeve nut (2). Then, using a pressing machine, depending on the material's hardness, either cold pressing or hot pressing is selected to press the raw material blocks into the shapes of the wedge nut (1) and sleeve nut (2). Finally, the shapes are finished using a CNC lathe, thus completing the "vibration-resistant and anti-loosening flange wedge lock nut" mold production process. The mold pressing process is characterized by low precision, low cost, and wide applicability, primarily used in mid-range markets where nut precision requirements are not high, such as rail transit, building bridges, national power, mining exploration, and machinery equipment.

[0019] The "vibration-resistant and anti-loosening flange wedge lock nut" standard can be matched with various types of bolts in the national standard, as well as bolt standards from various countries around the world.

[0020] "Vibration-resistant and anti-loosening flange wedge lock nuts" can be manufactured using various metal and composite materials to meet the actual needs of various sectors of society.

Claims

1. A vibration-resistant and anti-loosening flange wedge lock nut, characterized in that... It consists of two parts: a wedge nut (1) and a sleeve nut (2); a bolt (3) and a bolt thread (9); the wedge nut (1) has an arc-shaped wedge platform (4), a flange base (5), a wedge nut thread (7), and a wedge platform angle (r); the sleeve nut (2) has a wedge groove (6), a wedge groove angle (m), and a sleeve nut thread (8); the fastening object (10) is the object clamped when the wedge nut (1) and the sleeve nut (2) are fastened to the bolt (3).

2. The anti-vibration and anti-loosening flange wedge lock nut according to claim 1, characterized in that: Tighten the wedge nut (1) onto the bolt (3), clamp the fastening object (10) and tighten it, then tighten the sleeve nut (2) onto the bolt (3), and tighten the wedge nut (1) and sleeve nut (2) together. In this way, the wedge nut (1) and sleeve nut (2) achieve both vertical and horizontal tightening.

3. The anti-vibration and anti-loosening flange wedge lock nut according to claim 1, characterized in that: The wedge angle (r) of the arc wedge (4) on the wedge nut (1) is the same as the wedge groove angle (m) in the wedge groove (6) of the sleeve nut (2).

4. The anti-vibration and anti-loosening flange wedge lock nut according to claim 1, characterized in that: The arc of the arc-shaped wedge (4) on the wedge nut (1) is less than or equal to 180 degrees.

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