CN203588501U

CN203588501U - Simulated insulation joint of track circuit experimental system

Info

Publication number: CN203588501U
Application number: CN201320694172.4U
Authority: CN
Inventors: 莫振栋; 陶汉卿; 吴建军; 吴昕慧
Original assignee: Liuzhou Railway Vocational Technical College
Current assignee: Liuzhou Railway Vocational Technical College
Priority date: 2013-03-22
Filing date: 2013-11-05
Publication date: 2014-05-07
Anticipated expiration: 2023-11-05
Also published as: CN103578319A

Abstract

The utility model provides a simulated insulation joint of a track circuit experimental system, and relates to a track circuit experimental device. The device comprises sand table rails, a hollow coil, two tuning units, and two loading coils. The two tuning units are respectively a first tuning unit and a second tuning unit. The first tuning unit is formed by connecting a first coil and a first capacitor in series. The second tuning unit is formed by connecting a second coil and a second capacitor in series and then connecting a third capacitor in parallel. The first tuning unit is connected with a low carrier frequency end of the two sand table rails. The second tuning unit is connected with a high carrier frequency end of the two sand table rails. A distance between the two tuning units is 0.5-1.5m. Two ends of the hollow coil are respectively connected in parallel between two tuning units. The two loading coils are respectively connected in series with a same sand table rail on two ends of the hollow coil. The simulated insulation joint is easy to realize a jointless track circuit experiment system function on a rail sand table model, reliability is high, and stability is good. The simulated insulation joint is suitable for experimental training teaching and vocational training of curriculum related to railway communication signals.

Description

Track circuit experimental system analog insulation joint

Technical field

The utility model relates to a kind of track circuit experimental provision, particularly a kind of track circuit experimental system analog insulation joint.

Background technology

ZPW-2000 series naked frequency shift modulated track circuit is the important infrastructure of China Express Railway Automatic Control Systems for train operation system and main line wayside signaling automatic control system.Yet as the experimental facilities of scientific research, vocational training and vocational instruction, in electricity business section, training base He Ge railway universities and colleges remain a vacancy.The technological difficulties of ZPW-2000 series naked frequency shift modulated track circuit experimental system exploitation are simulation electrical insulation section parameter study and making, there is no at present the analog insulation joint Application and Development for ZPW-2000 series naked frequency shift modulated track circuit experimental system.And the electrical insulation section of the ZPW-2000 of on-the-spot railway signal system widespread use series naked frequency shift modulated track circuit technology is comprised of tuned cell, hollow coil and 29m rail, this technology has the following disadvantages: the on-the-spot electrical insulation section device structure using is comparatively complicated, volume is larger, be not easy to installment and debugging, components and parts cost is also higher, the principle that does not meet Vocational Practical Teaching " enough, applicable ", is unfavorable for global design and the exploitation of city rail experiment training system.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of track circuit experimental system analog insulation joint of being convenient to realize non-insulated track circuit experimental system function on track sand table model is provided.

The technical scheme solving the problems of the technologies described above is: a kind of track circuit experimental system analog insulation joint, comprise two parallel tracks, an air core coil, two tuned cells, and also include two loading coils; Described track is sand table track G, two described tuned cells are respectively the first tuned cell F1 and second tune unit F 2, the first tuned cell F1 is in series by the first coil L1, the first capacitor C 1, and second tune unit F 2 is formed in parallel with the 3rd capacitor C 3 after connecting by the second coil L2, the second capacitor C 2 again; The first tuned cell F1 is connected between the low carrier frequency end of two sand table track G, and second tune unit F 2 is connected between two sand table track G high carrier frequency ends, distance D=0.5～1.5 m between two tuned cells; Described air core coil SVA two ends are connected in parallel on respectively the centre of two tuned cells; Two described loading coil Lj are serially connected in respectively on the same sand table track G of air core coil SVA both sides.

Further technical scheme of the present utility model is: the inductance value of described air core coil SVA is 32 μ H, and the inductance value of loading coil Lj is 62 μ H, and the comprehensive inductance value of sand table track and air core coil is 83 μ H; When the carrier frequency of described sand table track G is f1=1700Hz, f2=2300 Hz, the first coil L1 inductance value of described the first tuned cell F1 is 98.6 μ H, the electric capacity of the first capacitor C 1 is 48.6 μ F, the second coil L2 inductance value of second tune unit F 2 is 181.3 μ H, the electric capacity of the second capacitor C 2 is 50 μ F, and the electric capacity of the 3rd capacitor C 3 is 116.8 μ F.

Further technical scheme of the present utility model is: the inductance value of described air core coil SVA is 32 μ H, and the inductance value of loading coil Lj is 62 μ H, and the comprehensive inductance value of sand table track and air core coil is 83 μ H; When the carrier frequency of described sand table track G is f1=2000Hz, f2=2600 Hz, the first coil L1 inductance value of the first tuned cell F1 is 77.2 μ H, the electric capacity of the first capacitor C 1 is 48.6 μ F, the second coil L2 inductance value of second tune unit F 2 is 131.0 μ H, the electric capacity of the second capacitor C 2 is 50 μ F, and the electric capacity of the 3rd capacitor C 3 is 140.5 μ F.

Owing to adopting said structure, the track circuit experimental system analog insulation joint of the utility model compared with prior art, has following beneficial effect:

1. be convenient to realize non-insulated track circuit experimental system function on track sand table model:

The utility model comprises two parallel sand table tracks, an air core coil, two tuned cells, two loading coils, and wherein the distance between two tuned cells is 0.5～1.5 m; This insulation joint uses Miniature component that electrical insulation section equipment is microminiaturized, the component parameters such as choose reasonable inductance, electric capacity hollow coil form simulation electrical insulation section and track sand table model matches, it is convenient to install, can realize the function of electrical insulation section, electric parameter is consistent with on-the-spot real equipment, can carry out practical operation and the experimental system fault handling of principle explanation, parameter measurement to student, can meet the needs of experimental real-training teaching, be convenient to realize non-insulated track circuit experimental system function on track sand table model.

2. the utility model, owing to can realize non-insulated track circuit experimental system function on track sand table model, is conducive to on-the-spot electricity business engineering technical personnel the technical matterss such as the utilization performance of signalling arrangement, maintenance adjustment, fault analysis is carried out to scientific research activity; Be conducive to transportation by railroad and signal maintenance personnel's skills training; For transportation by railroad Major provides train operation simulation experimental situation; Be conducive to improve the technical ability of putting into practice of professorship's railway signaling Major; For carrying out post Technique Authentication, railway signal enterprise provides implementation examination platform.

3. reliability is high, and good stability is applicable to experimental real-training teaching and the vocational training of railway communication signal correction course.

Below, in conjunction with the accompanying drawings and embodiments the technical characterictic of the track circuit experimental system analog insulation joint of the utility model is further described.

Accompanying drawing explanation

Fig. 1: the circuit diagram of the track circuit experimental system analog insulation joint of the utility model.

Embodiment

Embodiment mono-:

A kind of track circuit experimental system analog insulation joint, comprises two parallel tracks, an air core coil, two tuned cells, two loading coils; Described track is sand table track G, two described tuned cells are respectively the first tuned cell F1 and second tune unit F 2, the first tuned cell F1 is in series by the first coil L1, the first capacitor C 1, and second tune unit F 2 is formed in parallel with the 3rd capacitor C 3 after connecting by the second coil L2, the second capacitor C 2 again; The first tuned cell F1 is connected between the low carrier frequency end of two sand table track G, and second tune unit F 2 is connected between two sand table track G high carrier frequency ends, distance D=1 m between two tuned cells; Described air core coil SVA two ends are connected in parallel on respectively the centre of two tuned cells, and the distance between air core coil SVA to the first tuned cell F1 or second tune unit F 2 is D/2; Two described loading coil Lj are serially connected in respectively on the same sand table track G of air core coil SVA both sides.

The inductance value of described air core coil SVA is 32 μ H, and the inductance value of loading coil Lj is 62 μ H, and the comprehensive inductance value of sand table track and air core coil is 83 μ H; When the carrier frequency of described sand table track G is f1=1700Hz, f2=2300 Hz, the first coil L1 inductance value of described the first tuned cell F1 is 98.6 μ H, the electric capacity of the first capacitor C 1 is 48.6 μ F, the second coil L2 inductance value of second tune unit F 2 is 181.3 μ H, the electric capacity of the second capacitor C 2 is set as 50 μ F, and the electric capacity of the 3rd capacitor C 3 is that 116.8 μ F(are referring to table one); When the carrier frequency of described sand table track G is f1=2000Hz, f2=2600 Hz, the first coil L1 inductance value of the first tuned cell F1 is 77.2 μ H, the electric capacity of the first capacitor C 1 is 48.6 μ F, the second coil L2 inductance value of second tune unit F 2 is 131.0 μ H, the electric capacity of the second capacitor C 2 is set as 50 μ F, and the electric capacity of the 3rd capacitor C 3 is that 140.5 μ F(are referring to table two).

As a kind of conversion of the present embodiment one, the distance D between two described tuned cells can also be got 0.5 m, 0.8 m, 1.2 m, 1.5 m, or the arbitrary numerical value between 0.5～1.5 m.

Table one

Table two

Figure 2013206941724100002DEST_PATH_IMAGE002

The utility model is through under the adjustment state of experiment table measure analog electrical insulation section, parameter as shown in Table 3:

Table three

Frequency	The voltage of F1 tuned cell	The voltage of F2 tuned cell	Test effect
				1700 Hz	1.53V	187.2mV	Better
2300 Hz	162mV	1.14V	Better

Parameter under certain railway station actual measurement ZPW-2000A regulated state of a track circuit is as shown in Table 4:

Table four

Frequency	The voltage of F1 tuned cell	The voltage of F2 tuned cell
			1700 Hz	1.31V	162.2mV
2300 Hz	160.2mV	1.10V

By table three, table four, can be found out, test result and physical device data are basically identical, in conjunction with the test of track circuit analog demenstration platform, can realize the function of electrical insulation section.

Claims

1. a track circuit experimental system analog insulation joint, comprises two parallel tracks, an air core coil, two tuned cells, it is characterized in that: also include two loading coils; Described track is sand table track (G), two described tuned cells are respectively the first tuned cell (F1) and second tune unit (F2), the first tuned cell (F1) is in series by the first coil (L1), the first electric capacity (C1), and second tune unit (F2) is formed in parallel with the 3rd electric capacity (C3) after connecting by the second coil (L2), the second electric capacity (C2) again; The first tuned cell (F1) is connected between the low carrier frequency end of two sand table tracks (G), and second tune unit (F2) is connected between two sand table tracks (G) high carrier frequency end, distance D=0.5～1.5 m between two tuned cells; Described air core coil (SVA) two ends are connected in parallel on respectively the centre of two tuned cells; Described two loading coils (Lj) are serially connected in respectively on the same sand table track (G) of air core coil (SVA) both sides.

2. track circuit experimental system analog insulation according to claim 1 saves, it is characterized in that: the inductance value of described air core coil (SVA) is 32 μ H, the inductance value of loading coil (Lj) is 62 μ H, and the comprehensive inductance value of sand table track and air core coil is 83 μ H; When the carrier frequency of described sand table track (G) is f1=1700Hz, f2=2300 Hz, the first coil (L1) inductance value of the first tuned cell (F1) is 98.6 μ H, the electric capacity of the first electric capacity (C1) is 48.6 μ F, the second coil (L2) inductance value of second tune unit (F2) is 181.3 μ H, the electric capacity of the second electric capacity (C2) is 50 μ F, and the electric capacity of the 3rd electric capacity (C3) is 116.8 μ F.

3. track circuit experimental system analog insulation according to claim 1 saves, it is characterized in that: the inductance value of described air core coil (SVA) is 32 μ H, the inductance value of loading coil (Lj) is 62 μ H, and the comprehensive inductance value of sand table track and air core coil is 83 μ H; When the carrier frequency of described sand table track (G) is f1=2000Hz, f2=2600 Hz, the first coil (L1) inductance value of the first tuned cell (F1) is 77.2 μ H, the electric capacity of the first electric capacity (C1) is 48.6 μ F, the second coil (L2) inductance value of second tune unit (F2) is 131.0 μ H, the electric capacity of the second electric capacity (C2) is 50 μ F, and the electric capacity of the 3rd electric capacity (C3) is 140.5 μ F.