Insulating shell applied to 60Kg / m railway clamping plate

Abstract

The utility model discloses an insulating shell applied to a 60Kg / m railway clamping plate, and belongs to the technical field of steel rail traffic accessories. According to the technical scheme, an upper working face is arranged above an insulating shell body, and a lower working face is arranged below the insulating shell body; a first side surface and a second side surface for positioning and preventing the clamping plates from moving in the horizontal direction are respectively arranged on two sides of the insulating shell main body; a plurality of through holes are formed in the insulating shell main body; the insulating shell body, the upper working face, the lower working face, the first side face and the second side face are integrally formed. The beneficial effects of the utility model are that the insulation housing can meet the requirement for the insulation performance, and the insulation housing can be positioned through the side surfaces, thereby effectively preventing the clamping plates from shifting in the horizontal direction; and meanwhile, the integral injection molding is adopted, so that the production period is shortened, the maintenance and replacement are more convenient, the maintenance cost of railway accessories is reduced, and the stable operation of the railway accessories is ensured, thereby better ensuring the stable operation of the railway and ensuring the safety of railway transportation.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation accessories, and in particular relates to an insulating shell applied to a 60kg / m railway splint. Background Art

[0002] As railways develop rapidly, ensuring the safety of railway transportation is particularly important. Safety is not only the basic requirement of railway transportation, but also the basic guarantee for the overall operation of railways. Therefore, only by ensuring the safety of railway transportation can we better improve railway transportation.

[0003] Rail joint splints play a connecting role at rail joints. They are divided into light rail, heavy rail and extra-heavy rail. Railway splints are a type of connecting fastener used to connect rails. Compared with rail butt welding technology, they are time-saving and labor-saving, and are simple and quick to install. They are used in conjunction with bolts. A screw hole is provided in the middle, and an upper working surface in contact with the lower part of the rail head and a lower working surface in contact with the upper part of the rail bottom are provided on the upper and lower sides of the horizontal axis of the screw hole, which improves the smoothness of the train when it passes. Insulated railway splints can be further subdivided for different railway sections, such as at the connection between railway tracks and switches. Insulated splints are a type of railway splint material made of high-strength composite materials. They are resistant to corrosion, rust, UV aging, and are non-conductive and non-magnetic. They are thermosetting materials and cannot be processed secondary, so they are not afraid of theft. Currently, the production process for insulating splints, which has a high market share, includes pultrusion using high-temperature forming dies and gluing the splints to grooved steel plates with epoxy adhesive. However, the production cycle is long and the production cost is relatively high. In addition, some existing insulating splints cannot be positioned during use and will shift horizontally. Some are split designs, easily damaged, and have a short lifespan. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides an insulating shell applied to a 60Kg / m railway splint, which can be positioned to effectively prevent the splint from shifting in the horizontal direction.

[0005] The technical solution is as follows:

[0006] An insulating shell for a 60 kg / m railway plywood, comprising:

[0007] An insulating housing body, with an upper working surface provided on its upper side and a lower working surface provided on its lower side;

[0008] The insulating shell body is provided with a first side surface and a second side surface on both sides for positioning and preventing the splint from shifting horizontally;

[0009] The lengths of the first side surface and the second side surface in the vertical direction are shorter than the lengths of the side surfaces of the housing body;

[0010] The insulating shell body is provided with a plurality of through holes, and the spacing between each of the through holes is the same;

[0011] The insulating shell body, the upper working surface, the lower working surface, the first side surface and the second side surface are integrally formed.

[0012] Furthermore, the number of the through holes is 6.

[0013] Furthermore, the thickness of the insulating shell body, the upper working surface, the lower working surface, the first side surface, and the second side surface are all 4 mm.

[0014] Furthermore, the diameter of the through hole is larger than the diameter of the hole on the railway splint, with the difference being 2 to 4 mm.

[0015] Furthermore, the insulating shell body, the upper working surface, the lower working surface, the first side surface, and the second side surface are made of glass fiber reinforced nylon 6.

[0016] The beneficial effects of the utility model are:

[0017] The insulating shell applied to the 60 kg / m railway splint described in the utility model, when the railway splint shell with an insulating function is used together with the railway splint, not only meets the requirements for insulation performance, but the insulating shell can be positioned by the side to effectively prevent the splint from shifting in the horizontal direction; at the same time, it is an integral injection molding, which shortens the production cycle, makes maintenance and replacement more convenient, reduces the cost of railway parts maintenance, ensures the stable operation of the railway parts, and thus can better guarantee the smooth operation of the railway and ensure the safety of railway transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0019] Figure 1 This is a schematic diagram of the insulating shell structure of the utility model;

[0020] Figure 2 This is the main view of the insulating shell of the utility model;

[0021] Figure 3 This is a top view of the insulating housing of the utility model;

[0022] Figure 4 This is a bottom view of the insulating housing of the utility model;

[0023] Figure 5 This is a left view of the insulating housing of the utility model;

[0024] Figure 6 This is a right side view of the insulating housing of the utility model;

[0025] Figure 7 This is an installation diagram of the utility model;

[0026] Explanation of the accompanying numbers: 1-insulating shell body, 2-upper working surface, 3-lower working surface, 4-first side surface, 5-second side surface, 6-through hole, A-60Kg / m joint splint, B-insulating shell applied to 60Kg / m railway splint, C-60Kg / m rail. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Figure 1-7 Further description of the insulation shell for 60Kg / m railway plywood.

[0028] An insulating shell for a 60 kg / m railway plywood, comprising:

[0029] The insulating housing body 1 has an upper working surface 2 above and a lower working surface 3 below. A first side surface 4 and a second side surface 5 are provided on either side of the insulating housing body 1, respectively, for positioning and preventing horizontal displacement of the clamping plate. The vertical length of the first side surface 4 and the second side surface 5 is shorter than the length of the side surfaces of the housing body 1. The insulating housing body 1 is provided with a plurality of through-holes 6, each of which is spaced uniformly apart. The insulating housing body 1, upper working surface 2, lower working surface 3, first side surface 4, and second side surface 5 are integrally formed. There are six through-holes 6. The insulating housing body 1, upper working surface 2, lower working surface 3, first side surface 4, and second side surface 5 are all 4 mm thick. The diameter of the through-hole 6 is larger than the diameter of the hole in the railway clamping plate, with a difference of 2 to 4 mm. The insulating housing body 1, upper working surface 2, lower working surface 3, first side surface 4, and second side surface 5 are made of glass fiber reinforced nylon 6.

[0030] The utility model proposes a new type of insulating shell for 60Kg / m railway clamping plate, which is installed between the railway clamping plate and the rails. Figure 7 As shown, the railway splint is first wrapped with an insulating shell, and then the splint with the insulating shell installed is connected and fixed to the rail through bolts, nuts, washers, and insulating sleeves.

[0031] From the perspective of the shape of the insulating shell, the insulating shell is a whole, with the insulating shell body 1 having the function of covering and insulating on the front side and the two sides (the first side 4 and the second side 5) for positioning and preventing the splint from shifting horizontally.

[0032] The insulating shell is integrally injection molded in one step and does not contain any assembly structure. To ensure both insulation performance and not affect the assembly of the railway splint, the thickness is set to 4mm. The outer edge of the protective shell cross section matches the cross section of the rail, and the inner side matches the edge of the railway splint, thereby ensuring that the insulating shell can better contact the rail and the railway splint. At the same time, the insulating shell is provided with 6 through holes 6, the centers of the through holes 6 coincide with the centers of the holes on the railway splint. In terms of the size of the aperture, the aperture of the insulating shell is slightly larger than the diameter of the holes on the railway splint. Setting the diameter difference to 2 to 4 mm makes it easier to assemble the bolts. As described above, the contact stress can be evenly distributed, which not only ensures the insulation performance but also extends the service life of the insulating shell.

[0033] Glass-fiber-reinforced nylon 6 was chosen for the insulating housing due to its excellent dimensional and thermal stability, strong wear resistance, high mechanical strength, dimensional stability, and excellent chemical resistance. Furthermore, PA6 possesses excellent electrical properties, maintaining good electrical insulation even in high humidity environments. PA6 products are also lightweight and easy to dye and shape. Their low melt viscosity allows for rapid flow, easy mold filling, and a high solidification point after filling, resulting in fast molding speeds, short cycle times, and high production efficiency.

[0034] In terms of processing, after integral injection molding, the inner and outer surfaces of the insulation shell undergo a semi-finishing surface treatment. This primarily removes excess material and maintains a smooth surface. The finish on both sides is controlled to a 3.2 grade, with no visible machining marks, to ensure adequate contact between the insulation shell and the rails.

[0035] After the insulating shell is installed, an insulation resistance test is performed on the railway splint on which the insulating shell is installed. The resistance values ​​between the rail and the splint, between the insulating shell and the splint, and between the insulating shell and the rail are measured. The actual measured results all reach above 500 megohms. Therefore, it can be determined that the insulation of this shell can meet the standard requirements.

[0036] The insulating shell applied to the 60 kg / m railway splint described in the utility model, when the railway splint shell with an insulating function is used together with the railway splint, not only meets the requirements for insulation performance, but the insulating shell can be positioned by the side to effectively prevent the splint from shifting in the horizontal direction; at the same time, it is an integral injection molding, which shortens the production cycle, makes maintenance and replacement more convenient, reduces the cost of railway parts maintenance, ensures the stable operation of the railway parts, and thus can better guarantee the smooth operation of the railway and ensure the safety of railway transportation.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insulating shell for 60 kg / m railway plywood, characterized in that: include: An insulating housing body (1) is provided with an upper working surface (2) above and a lower working surface (3) below; The insulating housing body (1) is provided with a first side surface (4) and a second side surface (5) on both sides thereof for positioning and preventing the clamping plate from shifting in the horizontal direction; The lengths of the first side surface (4) and the second side surface (5) in the vertical direction are shorter than the length of the side surface of the housing body (1); The insulating housing body (1) is provided with a plurality of through holes (6), and the spacing between each of the through holes (6) is the same; The insulating housing body (1), the upper working surface (2), the lower working surface (3), the first side surface (4), and the second side surface (5) are integrally formed.

2. The insulating shell for 60 kg / m railway plywood according to claim 1, characterized in that: The number of the through holes (6) is 6.

3. The insulating shell for 60 kg / m railway plywood according to claim 2, characterized in that: The thickness of the insulating housing body (1), the upper working surface (2), the lower working surface (3), the first side surface (4), and the second side surface (5) are all 4 mm.

4. The insulating shell for 60 kg / m railway plywood according to claim 2, characterized in that: The diameter of the through hole (6) is larger than the diameter of the hole on the railway splint, with the difference being 2 to 4 mm.

5. The insulating shell for 60 kg / m railway plywood according to claim 1, characterized in that: The insulating housing body (1), the upper working surface (2), the lower working surface (3), the first side surface (4), and the second side surface (5) are made of glass fiber reinforced nylon 6.

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