A segmented insulator for a 200 km / h rigid suspension system

Abstract

A segmented insulator for a rigid suspension system with a speed of 200 kilometers per hour is composed of a pair of bus connectors, a pair of conductive slides, a pair of insulating slides and insulating rods; the two ends of the insulating rods are respectively connected and fixed to the inner ends of a pair of bus connectors through insulating rod connectors; the pair of conductive slides and a pair of insulating slides are staggered and distributed on both sides of the insulating rods, and the tails of the conductive slides and insulating slides are respectively fixed on both sides of the bus connector, and the ends of the conductive slides are connected and fixed to the ends of the insulating slides on the same side, and the bottom surfaces of the conductive slides and insulating slides are located in the same plane as the bottom of the contact line. The present invention adopts a double conductive slide + double insulating slide structure, and the conductive slides are connected to the insulating slides. There is no gap in the middle of the segmented insulator, which can achieve a smooth transition of the pantograph, without hard points, and has a delicate and stable structure, which is convenient for construction, installation and adjustment.

Description

Technical Field

[0001] The invention belongs to the technical field of electrified railway power supply contact network, and in particular relates to a segmented insulator for a rigid suspension system with a speed of 200 kilometers per hour. Background Art

[0002] The segmented insulator is a key equipment of the rigid suspension system, and its reliability is of great significance to the speed-up operation of the rigid suspension system. At present, the 200 km / h rigid suspension system is at the forefront of rigid suspension technology, and the segmented insulator, as a key component, is the bottleneck for the overall development of the 200 km / h rigid suspension contact network system.

[0003] The segmented insulators currently on the market that meet the rigid suspension system operating speed of 160 kilometers per hour are prone to problems such as large hard points, poor stability, easy arcing, and low wear resistance due to their structural limitations when the operating speed is further increased, which also poses certain safety hazards to locomotive operation.

[0004] With the background of electrified railways speeding up, more lines will use higher-speed rigid suspension systems in the future. In order to meet the requirements of subsequent line speed increases and improve the reliability of segmented insulators for rigid suspension systems, it is urgent to develop segmented insulators for electrified railway rigid suspension systems that are suitable for 200 km / h. Summary of the invention

[0005] The technical problem solved by the present invention is to design a segmented insulator for a rigid suspension system with a speed of 200 kilometers per hour to meet the operation of an electrified railway with a speed of 200 kilometers per hour.

[0006] The technical solution of the present invention is: a segmented insulator for a rigid suspension system with a speed of 200 kilometers per hour, the segmented insulator consisting of a pair of bus connectors, a pair of conductive slides, a pair of insulating slides and insulating rods; the two ends of the insulating rods are respectively connected and fixed to the inner ends of a pair of bus connectors through insulating rod connectors; the pair of conductive slides and the pair of insulating slides are staggered on both sides of the insulating rod, and the tails of the conductive slides and the insulating slides are respectively fixed on both sides of the bus connector, the end of the conductive slide is connected and fixed to the end of the insulating slide on the same side, and the bottom surface of the conductive slide and the insulating slide is located in the same plane as the bottom of the contact line.

[0007] The middle part of the insulating slideway is in a serpentine curve structure.

[0008] The bottom surface of the serpentine curve structure in the middle of the insulating slideway is evenly distributed with sink grooves along the line direction.

[0009] The conductive slide is a copper alloy slide, and the tail of the conductive slide is connected and fixed to the tail of the opposite insulating slide on both sides of the bus joint by a stud bolt pair, and the middle of the conductive slide is connected and fixed to the side of the insulating rod connector by a slide fixing bracket.

[0010] The insulating rod is composed of two insulating rods arranged in parallel up and down. One end of the insulating rod connecting piece is a trapezoidal body, and the other end has two cylindrical holes arranged in parallel up and down, and there are bosses on both sides of the tail end of the trapezoidal body; there are grooves on both sides of the inner end of the bus connector, the trapezoidal body is embedded in the inner end of the bus connector and fixed by bolts, and the bosses are interference-embedded in the grooves; the ends of the insulating rod are respectively embedded in the two cylindrical holes.

[0011] The characteristic is that the creepage distances of the insulating rod and the insulating slideway are both ≥1600mm.

[0012] The present invention has the following advantages and effects:

[0013] 1. The present invention adopts a double conductive slideway + double insulating slideway structure, and the conductive slideway is connected to the insulating slideway. There is no gap in the middle of the segmented insulator, which can achieve smooth transition of the pantograph without hard points. The structure is exquisite and stable, and it is easy to construct, install and adjust.

[0014] 2. The insulating slide of the present invention adopts a serpentine curve shape design, which reduces the overall length of the segmented insulator while meeting the 1600mnm creepage distance requirement; and the bottom surface of the insulating slide and the contact surface of the pantograph are designed as a slotted structure, which can effectively avoid insulation failure caused by long-term contact with the pantograph and the adhesion of carbon powder.

[0015] 3. The insulating rod connector of the present invention and the busbar joint adopt boss and groove interference fit, which enhances the overall rigidity and stability of the segmented insulator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the structure of the present invention.

[0017] Figure 2 It is a top view of the structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the insulating slide structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the insulating rod connecting piece of the present invention.

[0020] Figure 5 Schematic diagram of the busbar connector of the present invention. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1 , 2, 3, 4, and 5 describe in detail the specific implementation methods of the present invention.

[0022] A segmented insulator for a rigid suspension system with a speed of 200 km / h, the segmented insulator is composed of a pair of busbar joints 1, a pair of conductive slideways 2, a pair of insulating slideways 6 and an insulating rod 5; the two ends of the insulating rod 5 are respectively connected and fixed to the inner ends of the pair of busbar joints 1 through insulating rod connectors 4; the pair of conductive slideways 2 and the pair of insulating slideways 6 are staggered and distributed on both sides of the insulating rod 5, and the tails of the conductive slideways 2 and the insulating slideways 6 are respectively fixed on both sides of the busbar joint 1, the end of the conductive slideway 2 is connected and fixed to the end of the insulating slideway 6 on the same side, and the bottom surface of the conductive slideway 2 and the insulating slideway 6 is located in the same plane as the bottom of the contact line 8. The creepage distance of the insulating rod 5 and the insulating slideway 6 is ≥1600mm.

[0023] In one embodiment, the middle part of the insulating slideway 6 is in a serpentine curve structure. The bottom surface of the serpentine curve structure in the middle part of the insulating slideway (6) is evenly distributed with sink grooves 9 in the direction of the line.

[0024] In one embodiment, the conductive slide 2 is a copper alloy slide, and the tail of the conductive slide 2 is connected and fixed to the tail of the opposite insulating slide 6 on both sides of the bus connector 1 through a stud bolt pair 7, and the middle part of the conductive slide 2 is connected and fixed to the side of the insulating rod connector 4 through a slide fixing bracket 3.

[0025] In one embodiment, the insulating rod 5 is composed of two insulating rods arranged in parallel up and down, one end of the insulating rod connector 4 is a trapezoidal body 12, and the other end has two cylindrical holes 13 arranged in parallel up and down, and the trapezoidal body 12 has bosses 10 on both sides of the tail end; the inner end of the bus connector 1 has grooves 11 on both sides, the trapezoidal body 12 is embedded in the inner end of the bus connector 1 and fixed by bolts, and the boss 10 is interference-embedded in the groove 11; the ends of the insulating rod 5 are respectively embedded in the two cylindrical holes 13.

[0026] The present invention can meet the operation requirements of an electrified railway with a speed of 200 kilometers per hour, and the installation and use methods are the same as the existing "160 kilometers per hour rigid suspension contact network segmented insulator (CN201821324514.2)".

[0027] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A segmented insulator for a 200 km / h rigid suspension system, characterized in that: The segmented insulator is composed of a pair of busbar connectors (1), a pair of conductive slideways (2), a pair of insulating slideways (6) and an insulating rod (5); the two ends of the insulating rod (5) are respectively connected and fixed to the inner ends of the pair of busbar connectors (1) through insulating rod connectors (4); the pair of conductive slideways (2) and the pair of insulating slideways (6) are staggered and distributed on both sides of the insulating rod (5), and the tails of the conductive slideways (2) and the insulating slideways (6) are respectively fixed on both sides of the busbar connector (1), the end of the conductive slideway (2) is connected and fixed to the end of the insulating slideway (6) on the same side, and the bottom surface of the conductive slideway (2) and the insulating slideway (6) is located in the same plane as the bottom of the contact line (8); The middle portion of the insulating slideway (6) is in a serpentine curve structure, and the bottom surface of the serpentine curve structure in the middle portion of the insulating slideway (6) is evenly distributed with sink grooves (9) in the direction of the line.

2. The segmented insulator for a 200 km / h rigid suspension system according to claim 1 is characterized in that: The conductive slideway (2) is a copper alloy slideway, and the tail of the conductive slideway (2) is connected and fixed to the tail of the insulating slideway (6) on the opposite side on both sides of the bus connector (1) through a stud bolt pair (7), and the middle part of the conductive slideway (2) is connected and fixed to the side of the insulating rod connector (4) through a slideway fixing bracket (3).

3. The segmented insulator for a 200 km / h rigid suspension system according to claim 2 is characterized in that: The insulating rod (5) is composed of two insulating rods arranged in parallel up and down; one end of the insulating rod connector (4) is a trapezoidal body (12) and the other end has two cylindrical holes (13) arranged in parallel up and down, and the two sides of the tail end of the trapezoidal body (12) have bosses (10); the two sides of the inner end of the bus connector (1) have grooves (11); the trapezoidal body (12) is embedded in the inner end of the bus connector (1) and fixed by bolts, and the bosses (10) are interference-embedded in the grooves (11); the ends of the insulating rod (5) are respectively embedded in the two cylindrical holes (13).

4. The segmented insulator for a 200 km / h rigid suspension system according to claim 3 is characterized by: The creepage distances of the insulating rod (5) and the insulating slideway (6) are both ≥1600 mm.

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