CN201240393Y - Coded adjusting transmitting device - Google Patents
Coded adjusting transmitting device Download PDFInfo
- Publication number
- CN201240393Y CN201240393Y CNU2008201155334U CN200820115533U CN201240393Y CN 201240393 Y CN201240393 Y CN 201240393Y CN U2008201155334 U CNU2008201155334 U CN U2008201155334U CN 200820115533 U CN200820115533 U CN 200820115533U CN 201240393 Y CN201240393 Y CN 201240393Y
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- China
- Prior art keywords
- transformer
- frequency shift
- inducer
- resistance
- transmitting device
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Abstract
The utility model discloses a coding adjustment transmitting device which comprises a transformer with adjustable transformation ratio, a capacitor connected in parallel on one side of the transformer, and an inducer and a resistor connected in series on the other side of the transformer, The transformation ratio of the transformer is in the range from 200 V : 130V to 220V : 225V. The transformer adopts an iron core (50 Hz, 400 W). The resistance of the resistor is in the range from 0 to 150 Ohms. The linear diameters of both the adjustable transformer and the inducer are larger than Phi 0.6 mm. The transmitting device is connected in series with the inducer of a parallel circuit to generate a high resistance to the frequency shift, and the frequency shift generates a high voltage on the inducer to take the blocking action. The transmitting device is connected in parallel with the capacitors on both sides of a transformer to generate a low resistance to the frequency shift, so that the voltage drop of the frequency shift is reduced and the frequency-shift signal input to the transmitting terminal is reduced, thereby protecting the frequency shift. Additionally, the length of the analogue cable is regulated by adjusting the resistor that is connected in series in the parallel circuit, so that the sum lengths of the actual cable and the analogue cable in different track circuits are the same.
Description
Technical field
The utility model relates to electronic technology field, is meant a kind of coding adjustment sending set especially.
Background technology
Because the part railway track does not often have train to pass through, the rail rail level has reasons such as dust accumulation, greasy dirt and surface corrosion, worsened the short circuit effect of locomotive wheel to rail, under the serious situation, Train Wheel causes losing the train occupation inspection to not realizing to the shunt of track circuit, causes safety misadventure.In order to guarantee that Train Wheel needs to adopt the high-voltage large current mode to puncture corrosion, dust and the greasy dirt etc. on rail surface to the short circuit effect to track circuit under these conditions.
The indoor adjustment voltage transformer of BMT-25 that uses in the present 97 type 25Hz phase detecting track circuit that adopt, for the requirement that solves track circuit shunting badness, need to adopt the high-voltage large current mode, maximum allowed current to each components and parts in the voltage of indoor sending set output and the equipment all must improve, and the indoor adjustment unit of existing BMT-25 can not satisfy the voltage and current requirement; In addition, for the track circuit that the coding stack is arranged, the requirement of indoor code chemoprevention being protected equipment also must improve, and each components and parts can not satisfy the current requirements of shunting badness in the original equipment; In existing track circuit, have or not the difference of coding and track circuit actual cable length all can influence the track circuit transmission performance simultaneously, cause the inconsistency of signal transmission, be unfavorable for the adjustment of track circuit.Therefore, existing indoor coding equipment exists voltage, the more weak problem that can't satisfy transmission signals under different cable lengths of electric current.
The utility model content
In view of this, the utility model is to provide a kind of coding to adjust sending set, to solve above-mentioned existing indoor coding equipment owing to voltage, the more weak problem that can't satisfy transmission signals under different cable lengths of electric current.
For addressing the above problem, the utility model provides a kind of coding to adjust sending set, comprising: can adjust the voltage transformer of no-load voltage ratio, secondary side parallel capacitance, series inductance and the resistance of described voltage transformer.
Preferably, the no-load voltage ratio of described voltage transformer is 220V:130V～220V:225V.
Preferably, the iron core of described transformer adopting 50Hz, 400W.
Preferably, the scope of described resistance is 0～150 Ω.
Preferably, the described line footpath of voltage transformer and inductance of adjusting is all greater than Φ 0.6mm.
Sending set in the utility model by being connected in parallel in the voltage transformer both sides electric capacity and the inductance of circuit series carry out the protection of shift frequency, the inductance that is connected in series in circuit parallel presents high resistant to shift frequency, shift frequency forms high potential on inductance, play barrier effect; The electric capacity that is connected in parallel in the voltage transformer both sides presents low-resistance for shift frequency, and is very little for the pressure drop of shift frequency, approaches short circuit, and the two combined action reduces the frequency-shift signaling amount that enters transmitter side, thereby realize the protection for shift frequency; And track-circuit signalling needn't be passed through indoor barrier box, direct injection orbit circuit path, the resistance that is connected in series in circuit parallel by adjustment is adjusted the length of dummycable simultaneously, compensate different actual cable length bonded assembly track circuits, different track circuit actual cable is equated with the length sum of dummycable.By the combined action of foregoing circuit, be implemented in the conformability that has or not coding and track circuit actual cable length not to guarantee the track circuit transmission signals simultaneously.Adjustable in addition voltage transformer can be adjusted the voltage of track circuit sending end output, but buck or boost output, promptly adjusting transformer voltage ratio is 220V:130V～220V:225V, each components and parts improves maximum allowed current by increasing methods such as line footpath, air gap in the circuit, all meet the requirement of track circuit, and meet the fault-safety principle principle, easy to use and maintenance the solution shunting badness, and system equipment is simplified, reduced system cost.
Description of drawings
Fig. 1 is the constructional drawing of sending set among the embodiment;
Fig. 2 is the constructional drawing that sending set is applied in system.
The specific embodiment
For clearly demonstrating the technical scheme in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
Referring to Fig. 1, Fig. 1 is the constructional drawing of embodiment, comprising: adjustable voltage transformer, electric capacity, inductance and resistance, inductance and resistance are connected in series behind the Circuit Fault on Secondary Transformer parallel capacitance.
Adjustable voltage transformer mouth is many taps, and the adjustment no-load voltage ratio is 220V:130V～220V:225V, the iron core of transformer adopting 50Hz, 400W;
Series connected resistance adopts adjustable resistance, and setting range is 0～150 Ω.
Can adjust voltage transformer and inductance line footpath all greater than Φ 0.6.
By setting the parameter value of inductance and electric capacity, make inductance present high resistance for the corresponding frequencies of coding, make this frequency form big pressure drop on inductance, electric capacity presents low resistance for the corresponding frequencies of coding, this frequency is approached short-circuit condition, the two common protection that realizes coding.
Choosing of resistance value is the ohmage that uses every kilometer on cable with reference to actual, and 0.5km adjusts at interval, thereby realizes the conforming adjustment of cable transmission.Can adjust voltage transformer is that the voltage of track circuit sending end output can be adjusted, but buck or boost output, when voltage transformer input 220V, it is adjustable at interval that output can be 130V～225V, increased the maximum allowed current and the saturation current of each components and parts in the circuit by increasing methods such as line footpath, air gap simultaneously, satisfied track circuit and solve the requirement of shunting badness equipment.
Sending set in the utility model can be applicable to 25Hz phase detecting track circuit stack coding section.As shown in Figure 2, the coding sending set connects the coding transmitting apparatus, and signal is sent to rail by outdoor facility.Adjust the transformer voltage ratio in the sending set, the resistance that voltage is exported shelves, resistance according to the track circuit adjustment sheet, according to the use shelves of dummycable on the length selection equipment of on-the-spot actual cable.Simultaneously because equipment self has the coding safeguard function, make track-circuit signalling needn't pass through indoor barrier box, directly the injection orbit circuit path has been realized having or not coding and track circuit actual cable length not simultaneously, guarantees the conformability of track circuit transmission signals.Reduce the usage quantity of equipment, simplified the kind of equipment, be convenient to maintenance and easy to adjust.
For the device of being set forth among each embodiment of the utility model, all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1, sending set is adjusted in a kind of coding, it is characterized in that, comprising: can adjust the voltage transformer of no-load voltage ratio, secondary side parallel capacitance, series inductance and the resistance of described voltage transformer.
2, sending set is adjusted in a kind of coding according to claim 1, it is characterized in that the no-load voltage ratio of described voltage transformer is 220V:130V～220V:225V.
3, sending set is adjusted in a kind of coding according to claim 1, it is characterized in that the iron core of described transformer adopting 50Hz, 400W.
4, sending set is adjusted in a kind of coding according to claim 1, it is characterized in that the scope of described resistance is 0～150 Ω.
5, sending set is adjusted in a kind of coding according to claim 1, it is characterized in that, the described line footpath of voltage transformer and inductance of adjusting is all greater than Φ 0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201155334U CN201240393Y (en) | 2008-07-17 | 2008-07-17 | Coded adjusting transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201155334U CN201240393Y (en) | 2008-07-17 | 2008-07-17 | Coded adjusting transmitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201240393Y true CN201240393Y (en) | 2009-05-20 |
Family
ID=40713683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201155334U Expired - Fee Related CN201240393Y (en) | 2008-07-17 | 2008-07-17 | Coded adjusting transmitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201240393Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147486A (en) * | 2020-09-23 | 2020-12-29 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
| CN113602317A (en) * | 2021-08-24 | 2021-11-05 | 中铁建电气化局集团南方工程有限公司 | ZPW2000 track circuit debugging implementation method |
-
2008
- 2008-07-17 CN CNU2008201155334U patent/CN201240393Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147486A (en) * | 2020-09-23 | 2020-12-29 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
| CN112147486B (en) * | 2020-09-23 | 2024-06-11 | 中铁电气化局集团有限公司 | 25HZ phase-sensitive track circuit simulation tester and testing method |
| CN113602317A (en) * | 2021-08-24 | 2021-11-05 | 中铁建电气化局集团南方工程有限公司 | ZPW2000 track circuit debugging implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING NATIONAL RAILWAY RESEARCH + DESIGN INSTITU Free format text: FORMER NAME: BEIJING QUANLU COMMUNICATION SIGNAL RESEARCH DESIGN INST. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100073, Beijing, Fengtai District Huayuan one mile No. 18 building Patentee after: Beijing Quanlu Communication Signals Research and Design Institute Co., Ltd. Address before: 100073, Beijing, Fengtai District Huayuan one mile No. 18 building Patentee before: Beijing Quanlu Communication Signal Research Design Inst. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20140717 |
|
| EXPY | Termination of patent right or utility model |