CN207029205U - A kind of new non-insulated track circuit - Google Patents
A kind of new non-insulated track circuit Download PDFInfo
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- CN207029205U CN207029205U CN201720294538.7U CN201720294538U CN207029205U CN 207029205 U CN207029205 U CN 207029205U CN 201720294538 U CN201720294538 U CN 201720294538U CN 207029205 U CN207029205 U CN 207029205U
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- tuning area
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Abstract
The utility model discloses a kind of new non-insulated track circuit, it is related to technical field of rail traffic.It includes left side tuning area, backbone and right side tuning area, and backbone both sides are respectively arranged with left side tuning area and right side tuning area；It is disposed with the first left side tuned cell, left side tuning capacitance, left side choke induction and the second left side tuned cell between left end rail in described left side tuning area, the right-hand member rail in described right side tuning area is disposed with right side tuned cell, right side tuning capacitance, right side choke induction and the second right side tuned cell；Compensating electric capacity is provided between described backbone.The utility model tuning area includes inspection, is entirely capable of realizing that tuning area's rail broken rail and car team take audit function；Using the choke induction for tuning area, meet personal safety, solve roundabout interference；Indoor increase adjusts isolator, realizes that phase consular district section sends the isolation of signal and small rail reception signal, and adjust the amplitude of signal of the short railway.
Description
Technical field
The utility model relates to technical field of rail traffic, and in particular to a kind of new non-insulated track circuit.
Background technology
China introduces French UM71 shift frequencies non-insulated track circuit in early 1990s, and combines me on this basis
State's national conditions have developed more adaptation China railways ZPW-2000 series non-insulation move frequently track circuits.
Track circuit is using 1700,2000,2300, tetra- kinds of audio signal transmissions of 2600Hz, downlink 1700,2300Hz two
Kind of signal frequency, two kinds of uplink 2000,2600Hz signal frequencies, electric insulation cut section is used between the signal of the same line two
(tuning area)
Shift frequency non-insulated track circuit tunes area's rail length, and French UM71 shift frequencies non-insulated track circuit tunes area's rail
26 meters of length, ZPW-2000 series shift frequencies non-insulated track circuit tuning area's rail length press 29 meters, pass through 26 or 29 meters of rail
Itself induction reactance and tuned cell electric capacity composition parallel resonance.Because rail self-inductance is relatively low (0.65uH/m), parallel resonance
Impedance only has 2 Ω less than influenceing track circuit self transmission and shunt characteristic.Existing non-insulated track circuit tuning area is limited by set
Condition is put, following technical problem be present in ZPW-2000 series shift frequency non-insulated track circuits,
1. light-duty car team takes track circuit and cannot checked.
2. personal safety and the roundabout interference of track clash.
3. 29 meters of tuning area's rail broken rails and short car team, which take, cannot check that (situation in the past is rail Broken rail detection
And roundabout interference is realized by setting up choke inductor among backbone；There is dead track in tuning area, and short car team cannot be examined
Look into).
The solution now taken, is concentrated using train scheduling or command system sets section track circuit to take loss report
Alert function, track section middle part increase choke inductor, inspection, but baby track swinging of signal are included into tuning area (baby track)
Fixed, adjustment is more difficult or tuning area (baby track) is not included into inspection.
In summary, the utility model devises a kind of new non-insulated track circuit.
Utility model content
In view of the shortcomings of the prior art, the purpose of the utility model is to be to provide a kind of new naked track electricity
Road, meeting existing ZPW-2000 series shift frequency non-insulated track circuit items characteristic, it is right compared with good utilisation rail self-inductance
Non-insulated track circuit tuning area carries out brand-new design, forms new tuning area.
To achieve these goals, the utility model is to realize by the following technical solutions：New naked track
Circuit, including left side tuning area, backbone and right side tuning area, backbone both sides are respectively arranged with left side tuning area and right side tuning
Area；The first left side tuned cell, left side tuning capacitance, a left side are disposed between left end rail in described left side tuning area
Side choke induction and the second left side tuned cell, it is single that the right-hand member rail in described right side tuning area is disposed with right side tuning
Member, right side tuning capacitance, right side choke induction and the second right side tuned cell；Compensating electric capacity is provided between described backbone.
Described the first left side tuned cell, left side tuning capacitance, left side choke induction and left side rail successively with interior
Matching transformer, SPT cables, outdoor station lightning protection and cable emulation network, isolation adjuster and transmitting terminal are connected.
The second described left side tuned cell successively with indoor matching transformer, SPT cables, outdoor station lightning protection and cable mould
Intend network, attenuator and receiving terminal to be connected, described receiving terminal is also connected with isolating adjuster.
Described left side tuning area is identical with right side tuning plot structure.
The utility model has the advantages that：
1st, existing ZPW-2000 series shift frequency non-insulated track circuit items characterisitic parameter is not influenceed.
2nd, tuning area's parallel resonance impedance is improved (Ω of sending end >=4.5, the Ω of receiving end >=5.5), improves track
Circuit transmission and shunt characteristic.
3rd, by the sendaisle of adjacent sections, stronger signal of the short railway is received, tuning area is included into inspection, is entirely capable of reality
Now (signal of the short railway in the past is received by receiver channel, is caused for tuning area's rail broken rail and car team occupancy audit function
Signal of the short railway is especially weak, and unstable, and client most absolutely does not have to the function during use, is connect now by transmitting terminal passage
To receive, signal is strong, and stably, but therefore add adjustment isolator).
4th, using the choke induction for tuning area, meet personal safety, solve roundabout interference.
5th, indoor increase adjustment isolator, realize that phase consular district section sends the isolation of signal and small rail reception signal, and adjust
The amplitude of signal of the short railway.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is the Tuning Principle figure of background technology of the present utility model；
Fig. 2 is structural representation of the present utility model.
Embodiment
Technological means, creation characteristic, reached purpose and effect to realize the utility model are easy to understand, below
With reference to embodiment, the utility model is expanded on further.
Reference picture 2, present embodiment use following technical scheme：A kind of new non-insulated track circuit, including a left side
Side tuning area 1, backbone 2 and right side tuning area 3, the both sides of backbone 2 are respectively arranged with left side tuning area 1 and right side tuning area 3；It is described
Left side tuning area 1 in left end rail between be disposed with the first left side tuned cell 11, left side tuning capacitance 12, left side
The left side tuned cell 14 of choke induction 13 and second, the right-hand member rail in described right side tuning area 3 are disposed with right side and adjusted
Humorous unit 31, right side tuning capacitance 32, the right side tuned cell 34 of right side choke induction 33 and second；Set between described backbone 2
It is equipped with compensating electric capacity 21.
Described the first left side tuned cell 11, left side tuning capacitance 12, left side choke induction 13 and left side rail is successively
With indoor matching transformer, SPT cables, outdoor station lightning protection and cable emulation network, isolate adjuster and transmitting terminal is connected.
The second described left side tuned cell 14 successively with indoor matching transformer, SPT cables, outdoor station lightning protection and cable
Analog network, attenuator and receiving terminal are connected, and described receiving terminal is also connected with isolating adjuster.
Described left side tuning area 1 is identical with 3 structures of right side tuning area.
Adjustment isolator in present embodiment realizes the mutually isolated of two kinds of signals, is in the signal for allowing to pass through
Less than 2 Ω impedances, to isolation signals, its impedance is not less than 10k Ω.
Choke inductor impedance is more than 3 Ω, ensures in the case of personal security, to realize system when filling out-of-balance current perhaps
One Broken rail detection, and reduce the hollow coil in original system.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (3)
1. a kind of new non-insulated track circuit, it is characterised in that including left side tuning area, backbone and right side tuning area, backbone
Both sides are respectively arranged with left side tuning area and right side tuning area；Set gradually between left end rail in described left side tuning area
There are the first left side tuned cell, left side tuning capacitance, left side choke induction and the second left side tuned cell, the tuning of described right side
Right-hand member rail in area is disposed with right side tuned cell, right side tuning capacitance, right side choke induction and the second right side and tuned
Unit；Compensating electric capacity is provided between described backbone.
2. a kind of new non-insulated track circuit according to claim 1, it is characterised in that the first described left side tunes
Unit, left side tuning capacitance, left side choke induction and left side rail are prevented with indoor matching transformer, SPT cables, outdoor station successively
Thunder and cable emulation network, isolation adjuster and transmitting terminal are connected.
3. a kind of new non-insulated track circuit according to claim 1, it is characterised in that the second described left side tunes
Unit is connected with indoor matching transformer, SPT cables, outdoor station lightning protection and cable emulation network, attenuator and receiving terminal successively,
Described receiving terminal is also connected with isolating adjuster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720294538.7U CN207029205U (en) | 2017-11-21 | 2017-11-21 | A kind of new non-insulated track circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720294538.7U CN207029205U (en) | 2017-11-21 | 2017-11-21 | A kind of new non-insulated track circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207029205U true CN207029205U (en) | 2018-02-23 |
Family
ID=61471731
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720294538.7U Active CN207029205U (en) | 2017-11-21 | 2017-11-21 | A kind of new non-insulated track circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974046A (en) * | 2018-08-23 | 2018-12-11 | 深圳科安达电子科技股份有限公司 | A kind of meter shaft track circuit system |
| CN110641516A (en) * | 2019-10-26 | 2020-01-03 | 深圳科安达电子科技股份有限公司 | Track circuit system detection device capable of setting and adjusting parameters |
| CN110829996A (en) * | 2019-11-14 | 2020-02-21 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | ZPW-2000A track circuit and inductance value obtaining method |
| WO2020063336A1 (en) * | 2018-09-28 | 2020-04-02 | 北京全路通信信号研究设计院集团有限公司 | Tuning and matching unit |
-
2017
- 2017-11-21 CN CN201720294538.7U patent/CN207029205U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974046A (en) * | 2018-08-23 | 2018-12-11 | 深圳科安达电子科技股份有限公司 | A kind of meter shaft track circuit system |
| CN108974046B (en) * | 2018-08-23 | 2023-06-30 | 深圳科安达电子科技股份有限公司 | Axle counting track circuit system |
| WO2020063336A1 (en) * | 2018-09-28 | 2020-04-02 | 北京全路通信信号研究设计院集团有限公司 | Tuning and matching unit |
| CN110641516A (en) * | 2019-10-26 | 2020-01-03 | 深圳科安达电子科技股份有限公司 | Track circuit system detection device capable of setting and adjusting parameters |
| CN110829996A (en) * | 2019-11-14 | 2020-02-21 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | ZPW-2000A track circuit and inductance value obtaining method |
| CN110829996B (en) * | 2019-11-14 | 2023-11-17 | 北京铁路信号有限公司 | ZPW-2000A track circuit and inductance value acquisition method |
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