A lamination lock nut suitable for high frequency vibration

Abstract

The utility model relates to nut technical field discloses a lamination lock nut suitable for high frequency vibration, including main nut, the first internal thread is equipped with in main nut inner wall, the top of main nut is connected with lamination assembly, and the top of lamination assembly is connected with compression assembly, lamination assembly includes mounting bush, and mounting bush bottom fixed connection is established at the top of main nut, and the inside of mounting bush is equipped with multiple sets of limiting slot, the utility model has compared with prior art advantage lies in: through lamination assembly, can effectively avoid the circumferential rotation or axial displacement of lamination under high frequency vibration environment, simultaneously, can form reliable interference engagement with bolt, utilizes the sustained radial compression force of elastic deformation, and the anti -loosening ability is strengthened, through compression assembly, can stably provide axial pre -tightening force, ensures that elastic metal lamination always keeps effective elastic deformation to hold tightly bolt, improves stability.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a laminated anti-loosening nut suitable for high-frequency vibration. Background Technology

[0002] Nuts, as commonly used fasteners in mechanical connections, secure components by mating with bolts. However, under high-frequency vibration conditions in mechanical equipment, traditional nuts are prone to loosening due to the loosening torque generated by vibration, which can affect the stability of equipment operation and even cause safety hazards. Existing laminated anti-loosening nuts suitable for high-frequency vibration cannot effectively prevent the laminates from rotating circumferentially or moving axially under high-frequency vibration, leading to anti-loosening failure; moreover, they cannot stably provide axial preload, making it difficult to ensure that the elastic metal laminates always maintain effective elastic deformation to hold the bolt, thus reducing the overall stability of the connection. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laminated anti-loosening nut suitable for high-frequency vibration.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a laminated anti-loosening nut suitable for high-frequency vibration, comprising a main nut, wherein the inner wall of the main nut is provided with a first internal thread, a laminated assembly is connected to the top of the main nut, and a clamping assembly is connected to the top of the laminated assembly;

[0005] The stacked assembly includes a mounting sleeve, the bottom of which is fixedly connected to the top of the main nut, and multiple sets of limiting grooves are formed on the inner side of the mounting sleeve.

[0006] As a further description of the above technical solution:

[0007] The stacked assembly also includes elastic metal stacks, which are provided in three sets. Each of the three sets of elastic metal stacks is fixedly connected to a limiting block on its outer side, and the limiting block slides inside the limiting groove.

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

[0009] The clamping assembly includes a fixing cover, which is threaded to the outside of the top of the mounting sleeve. An annular pressure plate is fixedly connected to the top of the inner end of the fixing cover, and the annular pressure plate abuts against the top of the elastic metal stack.

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

[0011] The bottom of the main nut is provided with anti-slip teeth, and there are multiple sets of anti-slip teeth, which are distributed in a ring along the end face of the main nut.

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

[0013] The elastic metal lamination is made of spring steel, and a second internal thread is provided on the inner side of the elastic metal lamination.

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

[0015] The second internal thread has the same pitch as the first internal thread, and the second internal thread has the opposite direction of rotation to the first internal thread.

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

[0017] Both the mounting sleeve and the fixing cover are made of metal.

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

[0019] 1. In this utility model, the stacked plate assembly can effectively prevent the stacked plates from rotating circumferentially or moving axially under high-frequency vibration environment; at the same time, it can form a reliable interference engagement with the bolt, and use elastic deformation to generate a continuous radial clamping force, thereby enhancing the anti-loosening ability of the stacked anti-loosening nut suitable for high-frequency vibration.

[0020] 2. In this utility model, the clamping component can stably provide axial preload, ensuring that the elastic metal laminations always maintain effective elastic deformation to hold the bolt, thereby improving the stability of the lamination anti-loosening nut suitable for high-frequency vibration. Attached Figure Description

[0021] Figure 1 This invention presents a schematic diagram of the overall structure of a laminated anti-loosening nut suitable for high-frequency vibration. Figure 1 ;

[0022] Figure 2 This invention presents a schematic diagram of the overall structure of a laminated anti-loosening nut suitable for high-frequency vibration. Figure 2 ;

[0023] Figure 3 This invention provides a partial structural diagram of a laminated anti-loosening nut suitable for high-frequency vibration. Figure 1 ;

[0024] Figure 4 This invention provides a partial structural diagram of a laminated anti-loosening nut suitable for high-frequency vibration. Figure 2 .

[0025] Legend:

[0026] 1. Main nut; 2. Laminated plate assembly; 3. Mounting sleeve; 4. Limiting groove; 5. Elastic metal laminate; 6. Limiting block; 7. Clamping assembly; 8. Fixing cover; 9. Annular pressure plate; 10. Anti-slip serrations. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-4 The present invention provides an embodiment of a laminated anti-loosening nut suitable for high-frequency vibration, comprising a main nut 1, the inner wall of the main nut 1 having a first internal thread, a laminated assembly 2 connected to the top of the main nut 1, and a pressing assembly 7 connected to the top of the laminated assembly 2.

[0029] The stacked plate assembly 2 includes a mounting sleeve 3, the bottom of which is fixedly connected to the top of the main nut 1. The stacked plate mounting carrier has multiple sets of limiting grooves 4 on the inner side of the mounting sleeve 3.

[0030] The stacked plate assembly 2 also includes three sets of elastic metal stacked plates 5, which provide radial clamping force. Limiting blocks 6 are fixedly connected to the outer sides of each of the three sets of elastic metal stacked plates 5. The limiting blocks 6 slide within the limiting grooves 4 to prevent circumferential rotation and axial movement of the elastic metal stacked plates 5. The clamping assembly 7 includes a fixing cover 8, which is threaded to the outside of the top of the mounting sleeve 3 to ensure axial preload of the stacked plates. An annular pressure plate 9 is fixedly connected to the top of the inner end of the fixing cover 8, and the annular pressure plate 9 abuts against the top of the elastic metal stacked plates 5. The elastic metal lamination 5 is evenly pressed against the bottom of the main nut 1, which is provided with anti-slip teeth 10. Multiple sets of anti-slip teeth 10 are provided, and all sets of anti-slip teeth 10 are distributed in a ring along the end face of the main nut 1 to increase the biting friction between the main nut 1 and the end face of the installed part, and to help prevent loosening. The elastic metal lamination 5 is made of spring steel. The inner side of the elastic metal lamination 5 is provided with a second internal thread. The pitch of the second internal thread is the same as that of the first internal thread, and the direction of the second internal thread is opposite to that of the first internal thread. The mounting sleeve 3 and the fixing cover 8 are both made of metal.

[0031] Working principle: After the bolt passes through the installed component, it is screwed into the first internal thread of the main nut 1 and the second internal thread of the elastic metal lamination 5 in sequence. On the one hand, the anti-slip teeth 10 at the bottom of the main nut 1 embed into the surface of the installed component with the tightening force, increasing the end face friction through tooth meshing, and preventing the main nut 1 from rotating circumferentially relative to the connected component, forming the first anti-loosening barrier. On the other hand, the elastic metal lamination 5 is made of spring steel and has a second internal thread with the same pitch as the first internal thread but opposite to the direction of rotation. When the bolt is screwed in, it forms an interference fit with the reverse thread. At the same time, the fixing cover 8 is threaded to the top of the mounting sleeve 3, and the annular pressure plate 9 inside it applies a uniform axial preload to the three sets of elastic metal laminations 5, forcing the elastic metal... The lamination 5 undergoes radial contraction deformation, further tightening the bolt's external thread. The elastic restoring force generates a continuous radial clamping force, counteracting the bolt's loosening tendency caused by high-frequency vibration. Furthermore, the limiting groove 4 on the inner side of the mounting sleeve 3 slides into the limiting block 6 on the outer side of the elastic metal lamination 5, restricting the circumferential rotation of the elastic metal lamination 5 to prevent it from rotating synchronously with the bolt and causing anti-loosening failure, while also preventing axial movement of the elastic metal lamination 5 during vibration. The mounting sleeve 3, as the mounting carrier for the elastic metal lamination 5, together with the fixing cover 8, forms a stable positioning structure, ensuring that the elastic metal lamination 5 is always in the preset working position, guaranteeing the stability of reverse thread engagement and elastic deformation, and achieving long-term anti-loosening under high-frequency vibration conditions.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] 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 laminated anti-loosening nut suitable for high-frequency vibration, comprising a main nut (1), wherein the inner wall of the main nut (1) is provided with a first internal thread, characterized in that: The top of the main nut (1) is connected to a stacked plate assembly (2), and the top of the stacked plate assembly (2) is connected to a clamping assembly (7); The stacked assembly (2) includes a mounting sleeve (3), the bottom of which is fixedly connected to the top of the main nut (1), and multiple sets of limiting grooves (4) are opened on the inner side of the mounting sleeve (3).

2. The laminated anti-loosening nut suitable for high-frequency vibration according to claim 1, characterized in that: The stacked assembly (2) also includes elastic metal stacks (5), which are provided in three sets. Each of the three sets of elastic metal stacks (5) is fixedly connected to a limiting block (6), which slides inside the limiting groove (4).

3. A laminated anti-loosening nut suitable for high-frequency vibration according to claim 2, characterized in that: The clamping assembly (7) includes a fixing cover (8), which is threaded to the outside of the top of the mounting sleeve (3). An annular pressure plate (9) is fixedly connected to the top of the inner end of the fixing cover (8), and the annular pressure plate (9) abuts against the top of the elastic metal stack (5).

4. A laminated anti-loosening nut suitable for high-frequency vibration according to claim 1, characterized in that: The bottom of the main nut (1) is provided with anti-slip teeth (10), and there are multiple sets of anti-slip teeth (10), which are distributed in a ring along the end face of the main nut (1).

5. A laminated anti-loosening nut suitable for high-frequency vibration according to claim 2, characterized in that: The elastic metal lamination (5) is made of spring steel, and the inner side of the elastic metal lamination (5) is provided with a second internal thread.

6. A laminated anti-loosening nut suitable for high-frequency vibration according to claim 5, characterized in that: The second internal thread has the same pitch as the first internal thread, and the second internal thread has the opposite direction of rotation to the first internal thread.

7. A laminated anti-loosening nut suitable for high-frequency vibration according to claim 3, characterized in that: Both the mounting sleeve (3) and the fixing cover (8) are made of metal.

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