Anti-following-rotation nut for railway track

Abstract

The utility model relates to the technical field of fasteners, in particular to an anti-following-rotation nut for a railway track, which comprises a nut main body, a flange plate, a gasket and fastening teeth, a lubricating cavity is arranged in the nut main body, the flange plate is connected below the nut main body, the gasket is arranged in the flange plate, and a plurality of fastening teeth are arranged at the bottom of the flange plate. According to the anti-following-rotation nut for the railway track, vibration and impact force generated in the railway track can be reduced through the gasket arranged in the anti-following-rotation nut, the nut is prevented from loosening due to vibration, and the use safety of the nut is improved; and the internal thread is coated with a waxy lubricant and an internal lubricating cavity, so that the friction effect can be improved, following rotation of the nut can be resisted, and the nut is better disassembled, replaced and maintained.

Description

[Technical field]

[0001] The utility model relates to the technical field of fasteners, and more specifically, to an anti-rotation nut for railway tracks. [Background technology]

[0002] Bolts and nuts are one of the common mechanical fasteners and are widely used in aerospace, engineering machinery, rail transportation, automotive molds, medical equipment, electronic information, machine tools and other fields. Nut follow-up refers to the assembly and locking of nuts and other accessories after the nuts are assembled. As the nuts rotate, the accessories also rotate, resulting in different torques between the nuts and accessories, which in turn causes damage to the surfaces of the nuts and accessories.

[0003] An existing anti-rotation nut and washer assembly, with announcement number: CN 220488059 U, includes a nut and a washer assembled by riveting, the nut includes a nut body and a nut connection part, the nut connection part includes a nut sleeve structure, a nut collar and a nut lower end face, the washer is provided with a washer center hole, a washer main limit structure, a countersunk hole structure and a gasket lower end face; the nut sleeve structure passes through the washer center hole, the nut collar is located inside the countersunk hole structure and cooperates with the gasket main limit structure to combine the nut and the gasket together; the nut and the gasket can move relative to each other. By preventing the gasket from rotating relative to the surface of the fastener, the surface of the fastener can be protected, but the interior of the anti-rotation nut is not lubricated, and a certain degree of rotation will still occur, which is not conducive to actual disassembly. [Contents of the utility model]

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an anti-rotation nut for railway tracks, which provides good anti-rotation performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-rotation nut for railway tracks, comprising a nut body, a flange, a gasket, and fastening teeth, a lubrication cavity being provided inside the nut body, a flange being connected below the nut body, a gasket being provided inside the flange, and a plurality of fastening teeth being provided at the bottom of the flange.

[0006] Preferably, a fixing ring is provided between the bottom of the nut body and the top of the flange.

[0007] Preferably, the nut body is a hexagonal nut.

[0008] Preferably, the nut body comprises an internal thread and a lubrication cavity, the internal thread is externally connected to the lubrication cavity, and the lubrication cavity is provided with an opening channel on a side close to the internal thread.

[0009] Preferably, the lubrication cavity is filled with lubricating oil.

[0010] Preferably, the internal thread is coated with a wax lubricant.

[0011] Preferably, the gasket is made of rubber material and is movably disposed in the inner cavity of the flange.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model discloses an anti-rotation nut for railway track, which can reduce the vibration and impact force generated in the railway track through the gasket arranged inside, prevent the nut from loosening due to vibration, and improve the safety of the nut.

[0014] 2. The utility model is a railway track anti-rotation nut. By coating a wax lubricant on the internal thread and the internal lubrication cavity, the friction effect can be increased, the rotation of the nut can be resisted, and the nut can be better disassembled, replaced and maintained.

Brief Description of the Drawings

[0015] Figure 1 This is a front view of an anti-rotation nut for railway track of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of an anti-rotation nut for railway tracks of the utility model;

[0017] In the figure: 1- nut body, 11- internal thread, 12- lubrication cavity, 2- fixing ring, 3- flange, 4- gasket, 5- fastening teeth. [Specific implementation method]

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Embodiment 1

[0020] See also Figure 1 , Figure 2In the embodiment of the utility model, a railway track anti-rotation nut includes a nut body 1, a flange 3, a gasket 4, and fastening teeth 5. The nut body 1 is a hexagonal nut. The nut body 1 includes an internal thread 11 and a lubrication cavity 12. The internal thread 11 is externally connected to the lubrication cavity 12. A wax lubricant is coated on the internal thread 11. The lubrication cavity 12 is provided with an opening channel near the side of the internal thread. The lubrication cavity 12 is filled with liquid lubricating oil. The flange 3 is connected below the nut body 1. A fixing ring 2 is provided between the bottom of the nut body 1 and the top of the flange 3. A gasket 4 is provided inside the flange 3. The gasket 4 is made of rubber material. The gasket 4 can be movably arranged in the inner cavity of the flange 3. A plurality of fastening teeth 5 are provided at the bottom of the flange 3.

[0021] Embodiment 2

[0022] See also Figure 1 , Figure 2 In the embodiment of the utility model, a railway track anti-rotation nut includes a nut body 1, a flange 3, a gasket 4, and fastening teeth 5. The nut body 1 is a hexagonal nut. The nut body 1 includes an internal thread 11 and a lubricating cavity 12. The internal thread 11 is externally connected to the lubricating cavity 12. The internal thread 11 is coated with a wax lubricant. The lubricating cavity 12 is provided with an opening channel near the side of the internal thread. The lubricating cavity 12 is filled with solid high-temperature resistant lubricating oil. When it is needed, the nut can be heated to melt the lubricating oil for disassembly. The flange 3 is connected below the nut body 1. A fixing ring 2 is provided between the bottom of the nut body 1 and the top of the flange 3. A gasket 4 is provided inside the flange 3. The gasket 4 is made of rubber material. The gasket 4 can be movably arranged in the inner cavity of the flange 3. A plurality of fastening teeth 5 are provided at the bottom of the flange 3.

[0023] Working principle:

[0024] The utility model discloses an anti-rotation nut for railway track. When in use, the nut body 1 is rotated into the screw rod, and the fastening teeth 5 at the bottom of the flange 3 are pressed against the connecting surface to improve the anti-loosening ability of the nut. A freely movable gasket 4 is provided in the inner cavity of the flange 3 to improve the anti-seismic ability of the nut. Because the internal thread 12 in the nut body 1 is coated with wax lubricant and the built-in lubrication cavity 12 stores lubricating oil, when the rotation occurs, the friction effect can be increased by the lubricating oil, so that the nut is easier to disassemble.

[0025] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. An anti-rotation nut for railway track, characterized in that: The invention comprises a nut body (1), a flange (3), a gasket (4), and fastening teeth (5); a lubrication cavity (12) is provided inside the nut body (1); a flange (3) is connected below the nut body (1); a gasket (4) is provided inside the flange (3); and a plurality of fastening teeth (5) are provided at the bottom of the flange (3).

2. The anti-rotation nut for railway track according to claim 1, characterized in that: A fixing ring (2) is provided between the bottom of the nut body (1) and the top of the flange (3).

3. The anti-rotation nut for railway track according to claim 1, characterized in that: The nut body (1) is a hexagonal nut.

4. The anti-rotation nut for railway track according to claim 3, characterized in that: The nut body (1) comprises an internal thread (11) and a lubricating cavity (12); the internal thread (11) is externally connected to the lubricating cavity (12); and the lubricating cavity (12) is provided with an opening channel on one side close to the internal thread.

5. The anti-rotation nut for railway track according to claim 4, characterized in that: The lubricating cavity (12) is filled with lubricating oil.

6. The anti-rotation nut for railway track according to claim 4, characterized in that: The internal thread (11) is coated with a wax lubricant.

7. The anti-rotation nut for railway track according to claim 1, characterized in that: The gasket (4) is made of rubber material and is movably arranged in the inner cavity of the flange (3).

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