CN104648161A - Anti-breaking device for contact line of electric locomotive - Google Patents
Anti-breaking device for contact line of electric locomotive Download PDFInfo
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- CN104648161A CN104648161A CN201310598124.XA CN201310598124A CN104648161A CN 104648161 A CN104648161 A CN 104648161A CN 201310598124 A CN201310598124 A CN 201310598124A CN 104648161 A CN104648161 A CN 104648161A
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- electric locomotive
- wind pressure
- pantograph
- hardware platform
- voltage detection
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- Electric Propulsion And Braking For Vehicles (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
The invention relates to an anti-breaking device for a contact line of an electric locomotive. The anti-breaking device comprises a current mutual inductor, a wind pressure transmitter, a first voltage detection device, a second voltage detection device and an MCU(microprogrammed control unit) control platform, wherein the current mutual inductor is connected with a high pressure introducing circuit of the electric locomotive; the wind pressure transmitter is arranged at the front end of a pantograph improving air source control valve plate of the electric locomotive; the first voltage detection device is connected with a pantograph of the electric locomotive; the second voltage detection device is connected with an accumulator of the electric locomotive; the MCU control platform is connected with the current mutual inductor, the wind pressure transmitter, the first voltage detection device and the second voltage detection device respectively, and according to a signal detected by the current mutual inductor, the wind pressure transmitter, the first voltage detection device and the second voltage detection device, a control signal is outputted to a pantograph control device of the electric locomotive by the MCU(microprogrammed control unit) hardware platform. The anti-breaking device disclosed by the invention can monitor a current passing through the pantograph, the wind pressure of a main air reservoir and the voltage of the accumulator in a real-time manner, and when the detected signal exceeds a set value, the anti-breaking device disclosed by the invention can give out an audible and visual alarm prompt and perform a pantograph reducing protection.
Description
Technical field
The present invention relates to the anti-breaking net arrangement of a kind of electric locomotive.
Background technology
Railway electric locomotive is in operational process, and often come in contact net scaling loss and line-outage contingency, contact system produces the reason of burning and mainly contains:
1, top insulation is bad;
2, high-tension apparatus fault punctures;
3, when locomotive blast deficiency or storage battery force down, pantograph contact line relation is changed, causes pantograph and the arcing of contact system contact site to discharge and the contact net lines that fuses.
At present; the existing line circuit breaker of electric locomotive only carries out insulation blocking to faults such as locomotive overcurrent, tail end carrying ground; as destroyed in locomotive roof insulation, high-tension apparatus fault is hit etc. causes high pressure to discharge to roof; then line circuit breaker does not carry out insulation blocking; and the automatic bow-lowering device of electric locomotive (ADD) is only damaged for pantograph pan or may wear to limit and leak out; can automatic bow-lowering be carried out, and alarm free prompting, can not meet the requirement of locomotive safety running.
Summary of the invention
The object of the invention is overcome above-mentioned the deficiencies in the prior art and provide a kind of electric locomotive anti-breaking net arrangement, this anti-breaking net arrangement can carry out sound and light alarm prompting when power locomotive top large current, total wind pressure and battery tension are abnormal, and implements in time to fall bow.
The technical scheme realizing the object of the invention employing is the anti-breaking net arrangement of a kind of electric locomotive, and this anti-breaking net arrangement comprises:
Current transformer, introduces connection with the high pressure of electric locomotive;
Wind pressure transmitter, is located at the front end of electric locomotive rising bow air source control valve plate;
First voltage check device, is connected with the pantograph of electric locomotive;
Second voltage check device, is connected with the storage battery of electric locomotive; And
MCU hardware platform, is connected with described current transformer, wind pressure transmitter, the first voltage check device and the second voltage check device respectively;
The signal that described MCU hardware platform detects according to described current transformer, wind pressure transmitter, the first voltage check device and the second voltage check device exports control signal to the pantograph control device of electric locomotive.
The present invention detects power locomotive top large current by current transformer, blast is detected by wind pressure transmitter, the powered bow net pressure of electric locomotive is detected by the first voltage check device, and the voltage of storage battery is detected by the second voltage check device, then the signal detected is sent to MCU hardware platform, MCU hardware platform judges whether the electric current of above-mentioned detection, blast and voltage reach alarming value, then controls pantograph control device implement to fall bow as exceeded alarming value.
Use the present invention that contact line conducting wire can be prevented because of overcurrent heating or arcing and the netting twine that fuses, to reduce the generation of locomotive accident between pantograph in operational process, ensure locomotive operation safety and contact system powered operation safety, ensure the unimpeded of transportation route.Structure of the present invention is simple, to detection, judgement and whole automation of reporting to the police of electric current, blast and voltage, improves the efficiency to protection from hazards.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the anti-breaking net arrangement of electric locomotive of the present invention.
Fig. 2 is the installation site schematic diagram of current transformer in Fig. 1.
Fig. 3 is the installation site schematic diagram of Fig. 1 Wind pressure transmitter.
Fig. 4 is the structured flowchart of the first current processing module in Fig. 1.
Fig. 5 is the structured flowchart of the second current processing module in Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Apparatus of the present invention are used for the anti-suspension of electric locomotive, and therefore, the parts connection that needs of the present invention are corresponding to electric locomotive, to obtain the required signal detected.And electric locomotive comprises two driver's cabs, storage battery, pantograph and pantograph control devices, wherein, pantograph is provided with the high pressure be connected with contact system and introduces circuit, pantograph is also provided with rising bow air source control valve plate, electric locomotive used in the present invention is prior art, and its concrete structure repeats no more herein.
As shown in Figure 1, the anti-breaking net arrangement of electric locomotive of the present invention comprises: current transformer, wind pressure transmitter, MCU hardware platform, two liquid crystal touch display screens and combined aural and visual alarm, wherein, the high pressure of current transformer and electric locomotive introduces connection, wind pressure transmitter is located at the front end of the rising bow air source control valve plate of locomotive body pantograph, current transformer by the first current processing model calling with MCU hardware platform, the second current processing model calling of wind pressure transmitter and MCU hardware platform.Two liquid crystal touch display screens are located in intrinsic two driver's cabs of locomotive respectively, and liquid crystal touch display screen comprises signal input part, and signal input part is connected by the treater of optical fiber with MCU hardware platform.Combined aural and visual alarm is connected with the treater of MCU hardware platform.
As shown in Figure 2, the high pressure of the pantograph (1,2) at locomotive body two ends is introduced circuit position and is connected current transformer (3,4) respectively, and in the present embodiment, current transformer (3,4) adopts detection type transformer, has higher real-time accuracy.In Fig. 2, line circuit breaker 5 and main transformer 6 are the existing structure of locomotive body, repeat no more herein.The current signal of detection is input to the first current processing module of MCU hardware platform by current transformer, as shown in Figure 4, first current processing module comprises the sampling resistor connected successively, voltage sampling circuit, interchange turns direct current chip and the first modulus conversion chip, the current signal of detection is passed through sampling resistor by current transformer, current signal is converted to voltage signal by sampling resistor, namely voltage sampling circuit takes the voltage of sampling resistor, interchange turns direct current chip and the AC signal of sampled voltage is converted to direct current effective value, it is be input in treater after digital signal that last first modulus conversion chip (LTC1966 chip) carries out analogue to digital conversion to direct current effective value, treater is analyzed digital signal, if higher than setting value, start combined aural and visual alarm and carry out alarm, and to pantograph control device send fall bow instruction implement fall bow protection.
As shown in Figure 3, wind pressure transmitter 9 is located at the front end of rising bow air source control valve plate, wind pressure transmitter 9 is connected to total reservoir and comes on air pipe line 10, and for gathering total reservoir wind pressure signal, the wind pressure signal of detection is input to the second current processing module of MCU hardware platform by wind pressure transmitter 9.The rising bow module (3,4) connected with pantograph (1,2) respectively in Fig. 3 and pilot piping module 11 are the common structure of existing locomotive body, repeat no more herein.The wind pressure signal of detection is input to the second current processing module of MCU hardware platform by wind pressure transmitter 9; as shown in Figure 5; second current processing module comprises the linear optical coupling isolating device and the second modulus conversion chip that connect successively; the signal (0-20mA electric current) detected is sent to the second modulus conversion chip and carries out ADC quantification by wind pressure transmitter 9 after linear optical coupling isolation; finally by treater, result is analyzed; if higher than setting value, start combined aural and visual alarm and carry out alarm, and to pantograph control device send fall bow instruction implement fall bow protection.
The anti-breaking net arrangement of electric locomotive of the present invention also comprises: for detecting the first voltage check device of powered bow net pressure, and for detecting the second voltage check device of battery tension, the first voltage check device and the second voltage check device are connected with described MCU hardware platform respectively.First voltage check device detected powered bow net pressure signal before this, and determine whether net pressure signal, then by the second voltage check device battery tension detected and carry out ADC quantification, if there is net pressure signal, and battery tension is lower than DC105V, illustrate that battery charging circuit has fault.When not netting pressure signal, battery tension, lower than 78V, illustrates discharged or defective battery.If lower than setting value, alarm, and to pantograph control device send fall bow instruction implement fall bow protection.
The electric current that the present invention can be passed through by current transformer, wind pressure transmitter, the first and second voltage check device Real-Time Monitoring pantographs, total reservoir blast, battery tension.When the electric current that the pantograph of monitoring is passed through, total reservoir blast, battery tension exceed setting value, device can send sound and light alarm prompting, and implements to fall bow protection.And the present invention can carry out intactly record to the fault occurrences of this locomotive operation, the data of record can be inquired about by clicking liquid crystal touch display screen, and dump can be downloaded by mobile USB flash disk, be convenient to carry out ground data statistics and data analysis.
The present invention can also observe by two liquid crystal touch display screens the electric current that locomotive roof pantographs pass through, total reservoir blast, battery tension and device play protection after failure record, be convenient to the real-time condition understanding locomotive in time.In addition, by optical-fibre communications between two touch display screens and MCU hardware platform, there is stronger antijamming capability, at a high speed reliable, advantage that Low emissivity, electromagnetic compatibility are good, and interference can not be caused to the communication of locomotive and control.
Claims (6)
1. the anti-breaking net arrangement of electric locomotive, is characterized in that, comprising:
Current transformer, introduces connection with the high pressure of electric locomotive;
Wind pressure transmitter, is located at the front end of electric locomotive rising bow air source control valve plate;
First voltage check device, is connected with the pantograph of electric locomotive;
Second voltage check device, is connected with the storage battery of electric locomotive; And
MCU hardware platform, is connected with described current transformer, wind pressure transmitter, the first voltage check device and the second voltage check device respectively;
The signal that described MCU hardware platform detects according to described current transformer, wind pressure transmitter, the first voltage check device and the second voltage check device exports control signal to the pantograph control device of electric locomotive.
2. the anti-breaking net arrangement of electric locomotive according to claim 1, is characterized in that, also comprise:
Two liquid crystal touch display screens, are located in two driver's cabs of electric locomotive respectively; Described liquid crystal touch display screen comprises signal input part, and described signal input part is connected with described MCU hardware platform by optical fiber.
3. the anti-breaking net arrangement of electric locomotive according to claim 2, is characterized in that, also comprise:
Combined aural and visual alarm, is connected with described MCU hardware platform.
4. the anti-breaking net arrangement of the electric locomotive according to any one of claims 1 to 3, it is characterized in that: described MCU hardware platform comprises the first current processing module and the second current processing module, described first current processing module is connected with described current transformer, and described second current processing module is connected with described voltage transmitter.
5. the anti-breaking net arrangement of electric locomotive according to claim 4, is characterized in that, described first current processing module comprises:
Sampling resistor, is connected with described current transformer;
Voltage sampling circuit, is connected with described sampling resistor;
Interchange turns direct current chip, is connected with described voltage sampling circuit; And
First modulus conversion chip, comprises the first input end of analog signal and the first digital signal output end, and described first input end of analog signal and described interchange turn direct current chip and be connected, and described first digital signal output end is connected with described MCU hardware platform.
6. the anti-breaking net arrangement of electric locomotive according to claim 4, is characterized in that, described second current processing module comprises:
Linear optical coupling isolating device, is connected with described wind pressure transmitter; And
Second modulus conversion chip, comprises the second input end of analog signal and the second digital signal output end, and described second input end of analog signal and described interchange turn direct current chip and be connected, and described second digital signal output end is connected with described MCU hardware platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598124.XA CN104648161A (en) | 2013-11-22 | 2013-11-22 | Anti-breaking device for contact line of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598124.XA CN104648161A (en) | 2013-11-22 | 2013-11-22 | Anti-breaking device for contact line of electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104648161A true CN104648161A (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598124.XA Pending CN104648161A (en) | 2013-11-22 | 2013-11-22 | Anti-breaking device for contact line of electric locomotive |
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| CN (1) | CN104648161A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656159A (en) * | 2016-01-22 | 2016-06-08 | 广西大学 | Pantograph sensor power supply device |
| CN108897266A (en) * | 2018-06-27 | 2018-11-27 | 苏州大成电子科技有限公司 | A kind of rail traffic bow net operating condition monitoring system |
| CN111030067A (en) * | 2019-12-26 | 2020-04-17 | 株洲中车时代半导体有限公司 | Intelligent protection device for preventing contact net of electric locomotive from being blown |
-
2013
- 2013-11-22 CN CN201310598124.XA patent/CN104648161A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656159A (en) * | 2016-01-22 | 2016-06-08 | 广西大学 | Pantograph sensor power supply device |
| CN108897266A (en) * | 2018-06-27 | 2018-11-27 | 苏州大成电子科技有限公司 | A kind of rail traffic bow net operating condition monitoring system |
| CN111030067A (en) * | 2019-12-26 | 2020-04-17 | 株洲中车时代半导体有限公司 | Intelligent protection device for preventing contact net of electric locomotive from being blown |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |