A segmental insulator

Abstract

The utility model relates to the technical field of electrified railway contact network, disclose a sectional insulator, including the bow type support no. 1, the bow type support no. 1 side is pasted with long guide rail, the bow type support no. 1 other side is pasted with short guide rail, long guide rail and short guide rail surface all are seted up fixed hole no. 3, the bow type support no. 1 bottom pasting has the clamp hanger, the clamp hanger surface sets up anchor shaft hanging groove, the clamp hanger inside is provided with big clamp, the bow type support no. 1 inner wall is fixedly connected with sectional insulator, sectional insulator surface is fixedly connected with plastic guide rail seat, the plastic guide rail seat inner wall is fixedly connected with plastic guide rail. In the utility model, through clamp hanger realizes big clamp and the fixation of bow type support, realizes anchor clamp type connection through bow type support and sectional insulator connection, makes sectional insulator installation more simple and convenient, reduces hard point impact.

Description

Technical Field

[0001] This utility model relates to the field of electrified railway catenary technology, and in particular to a segmented insulator. Background Technology

[0002] Segment insulators are key equipment in electrified railway catenary systems used to achieve electrical segmentation of the catenary. They can divide the catenary into multiple independent power supply sections without interrupting the mechanical connection, achieving flexible power supply and electrical isolation. When a section needs maintenance or experiences a fault, the power supply to that section can be cut off independently without affecting the normal power supply to other sections, thus improving operational reliability. At the same time, by isolating the current in different power supply sections, they prevent the fault from spreading and meet the segmented control requirements of the catenary in different scenarios.

[0003] The existing connection methods between segmented insulators and contact wires are mainly direct clamp connection and anchor joint connection. Direct clamp connection can be adapted to high-speed train operation, but it has the disadvantage of high installation and adjustment difficulty. Anchor joint connection has relatively large hard points and cannot be used in high-speed operation. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a segmented insulator, which aims to improve the problem that the existing technology is difficult to achieve both easy installation and no hard point transition at the same time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a segmented insulator, comprising a bow-shaped bracket, a long guide rail attached to one side of the bow-shaped bracket, a short guide rail attached to the other side of the bow-shaped bracket, fixing holes three being provided on the surfaces of both the long and short guide rails, a clamping plate hanger attached to the bottom of the bow-shaped bracket, an anchor shaft hanging groove being provided on the surface of the clamping plate hanger, a large clamping plate being provided inside the clamping plate hanger, a segmented insulator being fixedly connected to the inner wall of the bow-shaped bracket, a plastic guide rail seat being fixedly connected to the surface of the segmented insulator, a plastic guide rail being fixedly connected to the inner wall of the plastic guide rail seat, a contact wire conductor one and a contact wire conductor two being attached to one side of the large clamping plate, and a clamping mechanism being provided on the surface of the long guide rail;

[0006] The above technical solution achieves a composite connection of anchor clamps by connecting the segmented insulator and the contact wire conductor through clamps and anchor sections, reducing hard points, minimizing damage to the pantograph, and improving the safety of high-speed train operation.

[0007] Preferably, the clamping mechanism includes multiple small clamping plates, one side of each of the multiple small clamping plates is in contact with the long guide rail, the other side of each of the multiple small clamping plates is provided with closely spaced teeth, the surface of each of the multiple small clamping plates is provided with fixing holes, and the multiple small clamping plates are arranged at intervals between each other.

[0008] The above technical solution involves clamping the first and second contact wire conductors with small and large clamps, which makes the force on the connection between the contact wire conductors and the sectional insulator more uniform, thus achieving a connection between the sectional insulator and the contact wire without hard points.

[0009] Preferably, an arc-extinguishing rod is installed at one end of both the long and short guide rails, and a limit hole is provided at the other end of both the long and short guide rails.

[0010] Preferably, the surface of the clamping plate hanger is provided with a connecting hole, which is used to connect the bow-shaped bracket and the clamping plate hanger.

[0011] Preferably, the surface of the large clamping plate is provided with a fixing hole, which is used to fix the contact wire.

[0012] Preferably, an anchor shaft is fixedly connected to the surface of the large clamping plate, and the anchor shaft fits against the inner wall of the anchor shaft hanging groove.

[0013] Preferably, the other end of the segmented insulator is fixedly connected to a bow-shaped bracket, and the segmented insulator is made of silicone material.

[0014] Preferably, the long guide rail, the short guide rail, the first contact wire conductor, and the second contact wire conductor are all made of copper-tin alloy.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the large clamp plate is fixed to the bow-shaped bracket by the clamp plate hanger. The connection between the large clamp plate and the bow-shaped bracket can be released by hooking the anchor shaft on the large clamp plate into the anchor shaft hanging groove. The anchor clamp connection is achieved by connecting the bow-shaped bracket and the segmented insulator, which makes the installation of the segmented insulator simpler and reduces hard point impact.

[0017] 2. In this utility model, multiple small clamps and large clamps are used to clamp the contact wire conductor, which can achieve a connection between the segmented insulator and the contact wire conductor without hard points. The contact wire conductor is prevented from slipping by setting dense teeth on the inner side of the small clamps. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a segmented insulator proposed in this utility model;

[0019] Figure 2 This is a partial schematic diagram of the bow-shaped bracket of a segmented insulator proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the bottom structure of the bow-shaped support of a segmented insulator proposed in this utility model;

[0021] Figure 4This is a schematic diagram of the contact wire conductor connection of a segmented insulator proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the small clamp connection of a segmented insulator proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the clamping plate hanger structure of a segmented insulator proposed in this utility model.

[0024] Legend:

[0025] 1. Bow-shaped bracket one; 2. Long guide rail; 3. Short guide rail; 4. Clamping plate hanger; 5. Contact wire conductor one; 6. Contact wire conductor two; 7. Small clamping plate; 8. Large clamping plate; 9. Arc extinguishing rod; 10. Plastic guide rail; 11. Plastic guide rail seat; 12. Segmented insulator; 13. Bow-shaped bracket two; 14. Anchor shaft; 15. Fixing hole one; 16. Fixing hole two; 17. Fixing hole three; 18. Anchor shaft hanging groove; 19. Close-toothed; 20. Limiting hole. 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 1-3 An embodiment of this utility model provides: a segmented insulator, including a bow-shaped bracket 1, a long guide rail 2 attached to one side of the bow-shaped bracket 1, a short guide rail 3 attached to the other side of the bow-shaped bracket 1, fixing holes 3 17 are provided on the surfaces of both the long guide rail 2 and the short guide rail 3, a clamping plate hanger 4 is attached to the bottom of the bow-shaped bracket 1, an anchor shaft hanging groove 18 is provided on the surface of the clamping plate hanger 4, a large clamping plate 8 is provided inside the clamping plate hanger 4, a segmented insulator 12 is fixedly connected to the inner wall of the bow-shaped bracket 11, a plastic guide rail seat 11 is fixedly connected to the surface of the segmented insulator 12, a plastic guide rail 10 is fixedly connected to the inner wall of the plastic guide rail seat 11, a contact wire conductor 1 5 and a contact wire conductor 2 6 are attached to one side of the large clamping plate 8, and a clamping mechanism is provided on the surface of the long guide rail 2;

[0028] The lower ends of the cross sections of the long guide rail 2 and the short guide rail 3 are set as arc structures similar to the shape of the contact wire, which can make the wear of the long guide rail 2 and the short guide rail 3 consistent with that of the contact wire conductor, so that when the guide rail swings due to the influence of wind, the swing of the contact surface between the guide rail and the pantograph is smaller.

[0029] In terms of construction, the segmented insulator simplifies the construction process, reduces complex procedures, lowers the difficulty of operation, and shortens the on-site construction time by using a snap-fit ​​structure design and the advantage of easy installation with clamps.

[0030] On the other hand, the anchor clamp connection improves the stability of the segmented insulator, reduces the maintenance cost of the segmented insulator, reduces component wear and failure frequency, and can isolate the faulty section separately when maintenance is required without affecting the overall power supply, thus improving maintenance efficiency.

[0031] Reference Figures 4-5 The clamping mechanism includes multiple small clamping plates 7. One side of each of the multiple small clamping plates 7 is attached to the long guide rail 2. The other side of each of the multiple small clamping plates 7 is provided with closely spaced teeth 19. The surface of each of the multiple small clamping plates 7 is provided with fixing holes 16. The multiple small clamping plates 7 are arranged at intervals.

[0032] By clamping the contact wire conductor 1 5 and contact wire conductor 2 6 with multiple small clamps 7 and large clamps 8, a seamless connection between the segmented insulator and the contact wire can be achieved, thereby allowing the pantograph to pass smoothly.

[0033] The inner side of the small clamp 7 is provided with fine teeth 19. The hardness of the fine teeth 19 is greater than that of the contact wire conductor. Under the action of the bolt tightening force, it can produce indentations on the contact wire conductor and produce an anti-slip effect.

[0034] Reference Figures 1-2 Both the long guide rail 2 and the short guide rail 3 are equipped with arc-suppressing rods 9 at one end and limit holes 20 at the other end. The arc-suppressing rods 9 can suppress the electric arc that may be generated during the offline process when the pantograph passes through the end area of ​​the long guide rail 2 and the short guide rail 3, so as to avoid the electric arc from damaging the end of the guide rail and the contact wire conductor. At the same time, in conjunction with the copper-tin alloy material used in the long guide rail 2 and the short guide rail 3, the performance degradation of the guide rail caused by uneven material wear and the high temperature of the electric arc is reduced, ensuring the long-term reliability of the end area of ​​the long guide rail 2 and the short guide rail 3, and providing a guarantee for the smooth transition of the pantograph at the end of the guide rail. The limit holes 20 are used to connect multiple small clamps 7 to the inside of the guide rail.

[0035] Reference Figure 6 The surface of the clamp plate hanger 4 is provided with a connecting hole for connecting the bow-shaped bracket 1 and the clamp plate hanger 4. By inserting bolts into the connecting hole, the bow-shaped bracket 1 and the clamp plate hanger 4 can be connected together, ensuring that the bow-shaped bracket 1 and the clamp plate hanger 4 are stably fitted together, avoiding relative displacement due to external forces during equipment operation, and thus ensuring the installation stability of the large clamp plate 8 inside the clamp plate hanger 4.

[0036] Reference Figure 4The surface of the large clamp plate 8 is provided with a fixing hole 15. The fixing hole 15 is used to fix the contact wire. By inserting bolts into the fixing hole 15, the contact wire conductor can be stably constrained in the large clamp plate 8, thereby preventing the contact wire from undergoing lateral or longitudinal displacement due to pantograph friction, wind load or its own tension during operation.

[0037] Reference Figure 4 An anchor shaft 14 is fixedly connected to the surface of the large clamp plate 8. The anchor shaft 14 fits against the inner wall of the anchor shaft hanging groove 18. When installing the large clamp plate 8, the connection between the large clamp plate 8 and the bow-shaped bracket can be quickly completed by hanging the anchor shaft 14 into the anchor shaft hanging groove 18.

[0038] When it is necessary to replace or repair the large clamp plate 8, the connection between the large clamp plate 8 and the clamp plate hanger 4 can be released by disengaging the anchor shaft 14 from the anchor shaft hanging groove 18.

[0039] Reference Figure 1 The other end of the segmented insulator 12 is fixedly connected to a bow-shaped bracket 13. The segmented insulator 12 is made of high-strength composite silicone material. Multiple plastic guide rail seats 11 are fixed on the surface of the plastic guide rail 10, which in turn connect multiple segmented insulators 12. Bow-shaped bracket 1 and bow-shaped bracket 2 13 are respectively set at both ends of the segmented insulator 12. The two brackets are symmetrically arranged, which can keep the forces at both ends of the segmented insulator 12 balanced.

[0040] Reference Figure 1 The long guide rail 2, the short guide rail 3, the contact wire conductor 1 5, and the contact wire conductor 2 6 are all made of copper-tin alloy.

[0041] Both the guide rails and the contact wire conductors are made of copper-tin alloy, ensuring that they have the same wear rate during production and operation, thus avoiding hard spots caused by different wear rates during long-term operation.

[0042] Working principle: The large clamp plate 8 is fixed to the clamp plate hanger 4 through the anchor shaft 14 and the anchor shaft hanging groove 18. The anchoring can resist the tension of the contact wire. When it is necessary to install or replace the large clamp plate 8, the connection between the large clamp plate 8 and the bow-shaped bracket 1 can be released by directly hanging the anchor shaft on the large clamp plate 8 into the anchor shaft hanging groove 18 of the segment insulator. It has a convenient and quick effect.

[0043] By optimizing the hard points of the anchor joint and combining the stability of the anchor clamp structure, the impact of the pantograph passing through the segment insulator is reduced, the offline and arcing phenomena are reduced, and the current collection quality is improved.

[0044] By integrating the high load-bearing capacity of the anchor section with the reliable connection characteristics of the clamp, the segmented insulator enhances the load-bearing and insulation performance of the segmented insulator. By using high-strength composite insulation material for the segmented insulator 12, the segmented insulator can withstand greater tension, while avoiding the problem of strength reduction caused by the aging of insulation components.

[0045] 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 segmented insulator, comprising a bow-shaped bracket (1), characterized in that: The bow-shaped bracket (1) has a long guide rail (2) attached to one side and a short guide rail (3) attached to the other side. The long guide rail (2) and the short guide rail (3) are both provided with fixing holes (17). The bottom of the bow-shaped bracket (1) is attached with a clamping plate hanger (4). The surface of the clamping plate hanger (4) is provided with an anchor shaft hanging groove (18). The clamping plate hanger (4) is provided with a large clamping plate (8). The inner wall of the bow-shaped bracket (1) is fixedly connected with a segmented insulator (12). The surface of the segmented insulator (12) is fixedly connected with a plastic guide rail seat (11). The inner wall of the plastic guide rail seat (11) is fixedly connected with a plastic guide rail (10). The first contact wire conductor (5) and the second contact wire conductor (6) are attached to one side of the large clamping plate (8). The surface of the long guide rail (2) is provided with a clamping plate mechanism.

2. A segmented insulator according to claim 1, characterized in that: The clamping mechanism includes multiple small clamps (7), one side of each of the multiple small clamps (7) is attached to the long guide rail (2), the other side of each of the multiple small clamps (7) is provided with dense teeth (19), the surface of each of the multiple small clamps (7) is provided with fixing holes (16), and the multiple small clamps (7) are arranged at intervals.

3. A segmented insulator according to claim 1, characterized in that: An arc-extinguishing rod (9) is installed at one end of both the long guide rail (2) and the short guide rail (3), and a limit hole (20) is opened at the other end of both the long guide rail (2) and the short guide rail (3).

4. A segmented insulator according to claim 1, characterized in that: The surface of the clamping plate hanger (4) is provided with a connecting hole, which is used to connect the bow-shaped bracket (1) and the clamping plate hanger (4).

5. A segmented insulator according to claim 1, characterized in that: The surface of the large clamping plate (8) is provided with a fixing hole (15), which is used to fix the contact wire.

6. A segmented insulator according to claim 1, characterized in that: An anchor shaft (14) is fixedly connected to the surface of the large clamp plate (8), and the anchor shaft (14) is in contact with the inner wall of the anchor shaft hanging groove (18).

7. A segmented insulator according to claim 1, characterized in that: The other end of the segmented insulator (12) is fixedly connected to a bow-shaped bracket (13), and the segmented insulator (12) is made of silicone.

8. A segmented insulator according to claim 1, characterized in that: The long guide rail (2), short guide rail (3), contact wire conductor one (5), and contact wire conductor two (6) are all made of copper-tin alloy.

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