CN1361415A - Test device of movable dry friction damping test trolley - Google Patents
Test device of movable dry friction damping test trolley Download PDFInfo
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- CN1361415A CN1361415A CN 00136787 CN00136787A CN1361415A CN 1361415 A CN1361415 A CN 1361415A CN 00136787 CN00136787 CN 00136787 CN 00136787 A CN00136787 A CN 00136787A CN 1361415 A CN1361415 A CN 1361415A
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Abstract
The test device for movable dry friction damping tes trolley includes: one non-electrical quality collecting system for collecting locomotive diesel oil non-electrical signals; one electrical signal collecting system for collecting locomotive electrical signals; one diesel engine rotation speed and frequency collecting unit for collecting diesel engine rotation speed and frequency; and one processor to process the said non-electrical signals, electric signals and diesel engine rotation speed and frequency for corresponding and display.
Description
The present invention relates to a kind of proving installation, particularly relate to a kind of proving installation that is applicable to mobile dry resistance test vehicle.
The present waterr rheostat test device of domestic widely used locomotive, because of the tank volume is limit, if there is not corresponding hydrologic cycle cooling system, when doing the locomotive load test, can because of water temperature change fast, resistance value unstable and cause test inaccurate.As add tank and cooling water recirculation system is set and then will increase investment, and floor area is too big, consumes a large amount of water sources.This has very big influence to the water shortage in north china area.Waterr rheostat test also influences because of resistance value is subjected to physics and chemical factor, changes greatly instability.Measuring accuracy is poor, and test speed is slow, and efficient is low, is easy to generate steam bubble and flying fox when the little electric current of high voltage.For doing big electric current sometimes again with salt.Again water resistance tank and pole plate have been strengthened loss so virtually, if do powerful test for a long time, waterr rheostat test just is difficult to realize.The applicant has developed a kind of mobile dry resistance test vehicle device for this reason.It adopts dried ohmic load to do the locomotive test load.Characteristics such as because dried resistance heat good stability is convenient to the appliance computer Detection ﹠ Controling, thereby is had the measuring accuracy height, test speed is fast, and the test figure capacity is big, and floor area is little, and maintenance is economic, and is convenient.
The purpose of this invention is to provide a kind of proving installation that is applicable to mobile dry resistance test vehicle.
Proving installation of the present invention comprises: a non electrical quantity acquisition system, be used to gather the locomotive diesel non-electric charge quantity signalling, comprise outburst compression pressure collecting unit, the boost pressure collecting unit, supercharging rotating speed collecting unit, diesel engine speed collecting unit, oil, coolant-temperature gage collecting unit, fuel oil, engine oil pressure collecting unit and house steward's temperature collecting cell; An electric signal acquisition system, be used to gather the electric signal of locomotive, comprise the voltage/current collecting unit of traction engine, the voltage/current collecting unit of excitation electromotor, the voltage/current collecting unit of CF excitation electromotor, the voltage/current collecting unit of electronic excitation; A diesel engine speed frequency collection unit is used to gather the diesel engine speed frequency; And treating apparatus, above-mentioned non-electric charge quantity signalling, electric signal and diesel engine speed frequency are handled, comprise: the current/voltage transmitter, the electric signal voltage transformation of gathering is become to be suitable for the voltage of A/D template standard and to give A/D template, simultaneously electric signal is flowed to indicating instrument; Instrument demonstration/internal conversion unit is used to show non-electric charge quantity signalling, and converts non-electric charge quantity signalling to electric signal; The shaping amplifying unit carries out shaping and amplification with the diesel engine speed frequency of gathering; The A/D conversion module receives the simulating signal from voltage/current transmitter, instrument demonstration/internal conversion unit, shaping amplifying unit respectively, and they are transformed into the digital signal that inputs to main frame; A main frame is handled the digital signal of A/D template input, so that show and/or printing.
The present invention is mainly used in the dong feng 4 diesel locomotive and does automatic data collection, adjustment, calculation process, signal demonstration, printing reports and the curve plotting that hinders in the test.Native system is simple to operate, and is easy to use, adopts the Chinese character man-machine conversation, and screen Chinese character directly perceived shows, and draws the locomotive external characteristic curve.
The present invention is described in detail below in conjunction with accompanying drawing.
Fig. 1 is the block scheme of non electrical quantity acquisition system of the present invention;
Fig. 2 is the block scheme of the supercharging rotating speed collecting unit among Fig. 1;
Fig. 3 is the block scheme of electric acquisition system of the present invention;
Fig. 4 is the block scheme for the treatment of apparatus of the present invention.
Diesel engine is the heart of locomotive, and the quality of diesel engine performance directly influences the locomotive traction external characteristics.Therefore every technical indicator of diesel engine also is to do the important step of resistance load test data handling system.The present invention carries out data acquisition, analysis, monitoring and adjustment according to the actual state of repairing technical regulation and diesel engine in the Ministry of Railways to 13 non-electric charge quantity signallings, gives full play to the every technical feature that guarantees diesel engine.Take from various sensors for non-electric charge quantity signalling and carry out internal conversion by instrument, unified output 0-5V voltage signal carries out entering computing machine after A D changes again and carries out data processing.
Below with reference to Fig. 1,2 collections that illustrate non-electrical parameter.The non electrical quantity acquisition system, be used to gather the locomotive diesel non-electric charge quantity signalling, comprise: outburst compression pressure collecting unit, the boost pressure collecting unit, supercharging rotating speed collecting unit, diesel engine speed collecting unit, oil, coolant-temperature gage collecting unit, fuel oil, engine oil pressure collecting unit and house steward's temperature collecting cell.Wherein the supercharger speed collecting unit as shown in Figure 2, it comprises a piezoelectric sensor that detects the locomotive pressure rotating speed, the charge amplifier that the signal of a piezoelectric sensor detection amplifies, a gain-programmed amplifier that the charge amplifier output signal is carried out controlled amplification, output signal to gain-programmed amplifier is carried out filtering, is exported to the stage low-pass filter of display and cpu system and voltage adjustment system etc. then.
Supercharger speed analyser (for example, PP-1 type) is to utilize turbocharger vanes is rotated the size that its rotating speed is determined in the spectrum analysis that causes vibration equipment.Be characterized in using advanced in the world lossless detection method, need not any device of dismounting supercharger, the employing magnetic adsorption type is finished the measurement to supercharger speed.By the test analysis of PP-1 type oscillatory type rotating speed analyser to dong feng 4 internal combustion engine supercharger rotating speed, show that system linearity degree and precision all reach designing requirement, to 7 dong feng 4 locomotive pressure device measurement of rotating speed results in the 21000-24000rpm scope, error only is positive and negative about 0.01%, can monitor and fault diagnosis the supercharger state according to test result fully.
The present invention gathers 8 electric signals and finishes locomotive external characteristics ideal curve value.We directly take from the shunt and the respective terminal of locomotive itself for electric signal, through after the transmitter conversion, unified output 0-5V voltage signal, the one tunnel send instrument to show, the one tunnel through A D plate input computing machine.
Below in conjunction with the collection of Fig. 3 explanation to electric signal.
The electric signal acquisition system, the electric signal that is used to gather locomotive.It comprises: the voltage/current collecting unit of traction engine, the voltage/current collecting unit of excitation electromotor, the voltage/current collecting unit of CF excitation electromotor, the voltage/current collecting unit of electronic excitation.
Also shown a diesel engine speed frequency collection unit among Fig. 3, it gathers the diesel engine speed frequency.
Below in conjunction with Fig. 4 explanation institute's image data is carried out calculation process, shows signal principle.
Treating apparatus of the present invention is handled above-mentioned non-electric charge quantity signalling, electric signal and diesel engine speed frequency.It comprises: the current/voltage transmitter, and the electric signal voltage transformation of gathering is become to be suitable for the voltage (for example, the 0-5 volt) of A/D template standard and gives A/D template, simultaneously electric signal is flowed to indicating instrument and show to carry out instrument; Instrument demonstration/internal conversion unit is used to show non-electric charge quantity signalling, and converts non-electric charge quantity signalling to electric signal (for example, 0-5 volt); The shaping amplifying unit carries out shaping and amplification with the diesel engine speed frequency of gathering; The A/D conversion module receives the simulating signal from voltage/current transmitter, instrument demonstration/internal conversion unit, shaping amplifying unit respectively, and they are transformed into the digital signal that inputs to main frame; And main frame (microcomputer), the digital signal of A/D template input is handled, so that show and/or printing.
The parts of following model of employing of the present invention and type:
(1) computer part:
Computer motherboard is selected the TXP4 of Asus for use; CPU selects pentium166 for use;
Internal memory is selected the 16MEDO internal memory for use;
(2) A the D plate select China control group 1214 plates for use;
(3) the supercharger speed sensor adopts PP-1 type external application formula sensor;
(4) transmitter type selecting:
XMZ101 temperature transmitter 0-1000 ℃ ± 0.5%
XMZ104 pressure unit 0-60KPa ± 0.5%
16C4-V D.C. voltmeter 0-150V ± 1.5%
16C4-A DC ammeter 0-300A ± 1.5%
XCW-01 temperature indicator 0-800 ℃ ± 1.5%
XCW-02 pressure indicator 0-10KPa ± 1.5%
XJP-02 numeral rotating speed display instrument 0-9999rpm ± 0.3%
Claims (1)
1. the proving installation of a mobile dry resistance test vehicle comprises:
A non electrical quantity acquisition system, be used to gather the locomotive diesel non-electric charge quantity signalling, comprise outburst compression pressure collecting unit, the boost pressure collecting unit, supercharging rotating speed collecting unit, diesel engine speed collecting unit, oil, coolant-temperature gage collecting unit, fuel oil, engine oil pressure collecting unit and house steward's temperature collecting cell;
An electric signal acquisition system, be used to gather the electric signal of locomotive, comprise the voltage/current collecting unit of traction engine, the voltage/current collecting unit of excitation electromotor, the voltage/current collecting unit of CF excitation electromotor, the voltage/current collecting unit of electronic excitation;
A diesel engine speed frequency collection unit is used to gather the diesel engine speed frequency; With a treating apparatus, above-mentioned non-electric charge quantity signalling, electric signal and diesel engine speed frequency are handled, comprise: the current/voltage transmitter, the electric signal voltage transformation of gathering is become to be suitable for the voltage of A/D template standard and to give A/D template, simultaneously electric signal is flowed to indicating instrument; Instrument demonstration/internal conversion unit is used to show non-electric charge quantity signalling, and converts non-electric charge quantity signalling to electric signal; The shaping amplifying unit carries out shaping and amplification with the diesel engine speed frequency of gathering; The A/D conversion module receives the simulating signal from voltage/current transmitter, instrument demonstration/internal conversion unit, shaping amplifying unit respectively, and they are transformed into the digital signal that inputs to main frame; A main frame is handled the digital signal of A/D template input, so that show and/or printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136787 CN1361415A (en) | 2000-12-28 | 2000-12-28 | Test device of movable dry friction damping test trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136787 CN1361415A (en) | 2000-12-28 | 2000-12-28 | Test device of movable dry friction damping test trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1361415A true CN1361415A (en) | 2002-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00136787 Pending CN1361415A (en) | 2000-12-28 | 2000-12-28 | Test device of movable dry friction damping test trolley |
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| Country | Link |
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| CN (1) | CN1361415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817109A (en) * | 2017-12-15 | 2018-03-20 | 株洲中车电气科技有限公司 | A kind of dry resistance test method of diesel locomotive and device |
-
2000
- 2000-12-28 CN CN 00136787 patent/CN1361415A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817109A (en) * | 2017-12-15 | 2018-03-20 | 株洲中车电气科技有限公司 | A kind of dry resistance test method of diesel locomotive and device |
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