CN2103592U - High-intelligent dynamic checking instrument for track - Google Patents

Abstract

The utility model relates to a high intelligent dynamic checking instrument for a track, which is composed of a host machine, an acceleration transducer, a speed measuring transducer and a PC, as diagram 1 shows. The checking instrument is provided with a microcomputer communication interface which can transfer measured data to the PC and other enlarging machine for statistical analysis and store. The utility model can be used for checking the vibration accelerating speed of trains in vertically and horizontal two directions. The utility model is suitable for railway working departments for checking track state, supervising railway quality and guiding railway repairing and maintaining work, and is especially suitable for statistics people as an important foundation of railway quality analysis.

Description

High-intelligent dynamic checking instrument for track

The utility model belongs to the improvement of railway dedicated track somascope.

Rail track is being keeped in repair, in the maintenance processes, will measure the state of the art of track usually in advance.In the railway maintenance standard, formulated the train vibration check criteria abroad.Check the quality of line quality with the size of train vibration acceleration.For example, mainly check line quality in Japan with the UH-II type train vibration accelerometer that the smart machine of Jitian Co., Ltd. produces.But this instrument does not have synchronous recording, can not carry out data and handle, and can not survey train running speed, can only replace with average speed, so accuracy of detection is lower, does not have the mileage in the train operation to show, complete machine does not have system sensitivity to be demarcated, and total energy consumption is higher.

Domestic at present similar patent has Chinese patent: track dynamic somascope, application number: 88214398.2.Though this instrument has solved the problems referred to above of the UH-II type train vibration accelerometer of Japanese production, the stability of complete machine, reliability and accuracy of detection are all relatively poor.Particularly can't store detected technical data, extract where necessary for analysis and research.

The purpose of this utility model provides a kind of stability and good reliability accuracy of detection height, detected data input computer stored can be got up, and back-up is analysed the high intelligent track dynamic chek instrument of research usefulness.The utility model is a kind of testing tool by microcomputerized control, fully digitalization.It can be used to detect the train vibration acceleration, and double measuring car speed and having the records of distance by the log.The people is for after presetting initial mileage and up, following line flag, and the computer expert crosses display screen and shows mileage automatically.When the train vibration acceleration surpassed the standard of setting by speed of a motor vehicle classification, computer printed " mileage position ", " horizontal acceleration ", " normal acceleration " and " train speed " in unusual place automatically.Can intuitively give information easily, the user is gone and found out what's going on rapidly.Because in the utility model, increased the capacity of memory, be provided with the microcomputer communication interface, so, can send survey data to PC and other compatible carries out statistical analysis and file.

Below in conjunction with accompanying drawing the utility model is described in detail as follows:

Fig. 1 is the structural representation of high intelligent track dynamic chek instrument

Fig. 2 is the fundamental diagram of high intelligent track dynamic chek instrument

Fig. 3 is the main machine structure schematic diagram

Fig. 4 is a main frame outward appearance front view

Fig. 5 is a main frame outward appearance rear elevation

Fig. 6 is the acceleration sensor structure schematic diagram

Fig. 7 is the acceleration transducer schematic appearance

Fig. 8 is the tachogenerator structural representation

Fig. 9 is a group of magnets component schematic diagram

Figure 10 is 8031 and digitlization test section circuit diagram

Figure 11 is analog record and signal processing circuit diagram

Figure 12 tests the speed for having the records of distance by the log and demarcation signal partial circuit figure

Figure 13 is a display circuit

Figure 14 is charger circuit figure

Figure 15 is the supply convertor circuit diagram

High Intelligent track dynamic checking instrument is made up of main frame 1, acceleration transducer 2, tachogenerator 3 and PC 83.

The frame for movement of each several part is described below respectively:

The inside of main frame 1 has simulation to amplify with have the records of distance by the log velocity measurement plate 4, mileage display board 5, presets mileage code-disc 6, has the records of distance by the log and adjust code-disc 7, printer plate 8 and printer head 9.The outside of main frame 1 is made up of shell 10, front panel 11 and rear board 33.Power supply indicator 12, power switch 13, mileage display screen 14, printing selector switch 15, the button 16 that tests the speed, reset button 17, up, following line flag switch 18, preset button 19 are arranged on the front panel 11, preset mileage code-disc 20, have the records of distance by the log and adjust code-disc 21, printer drawer lid 22, paper output trough 23, printer drawer fixed knob 24, paper feed button 25 and printer power supply switch 26.The accessory power outlet 32 that power input socket 27, signal input socket 28, tachometer signal input socket 29, work/demarcation changeover switch 30, detection/communication changeover switch 31 and microcomputer communication interface 86 are arranged on the rear board 33.

The inside of acceleration transducer 2 has transformer 34, battery 35, the fixing card 36 of battery to be used for fixing battery 35.Normal acceleration meter 37, signal accessory power outlet 38, power output socket 39, interchange input socket 40, voltmeter 41, horizontal accelerometer 42, charger circuit board 43 and stabilizator fin 44.There are shell 45 and panel 46 in the outside of acceleration transducer.Signal accessory power outlet 38, power output socket 39 are arranged on panel 46, exchange input socket 40, indicator lamp 50, fuse holder 51 and voltmeter 41.

Group of magnets component 54 on the tachogenerator 3 is contained in respectively on train wheel 53 and the generator pulley 58.Group of magnets component 54 is made up of strong magnet 47 and stainless steel bent plate 48.Induction coil 55 is contained in the left end of fixed frame 56.Be fixed on the bogie 57 with fixed frame 56 and fixed frame fishbolt 64.Rotary handle 65 is housed on fixed frame fishbolt 64.Fixing between fixed frame 56 and the regulating arm 61 with regulating arm clamp nut 63.Two tachometer signal accessory power outlets 62 are housed at the middle part of regulating arm 61.Induction coil 55 is equipped with in the bottom of regulating arm 61.

The each several part circuit is described below respectively:

Host circuit: work as vibration-measuring sensor, after the vibration signal that produces when receiving train operation as normal acceleration meter 60, input to integrator 66, after high-pass filter 67 filtering, send amplifier 68 to amplify, through low pass filter 69 filtering, RC coupling circuit 70 is eliminated the direct current composition, and behind follower 71, give peak detection circuit 72 and absolute value circuit 73.Peak detection circuit sends a pulse at each peak value place of signal.Absolute value circuit 73 becomes unidirectional fluctuating signal with bipolar signal, gives A/D converter 74.When signal met or exceeded threshold value, level discriminating circuit 75 just produced a pulse.When signal peak met or exceeded threshold value, " with door " circuit 76 was just sent a pulse at the peak value place, interrupted to 77 applications of 8031 single-chip microcomputers.77 responses of 8031 single-chip microcomputers are interrupted, and start A/D converter 74, read the mileage show value on mileage display screen 14.Measure the instantaneous speed of a motor vehicle, and read the transformation results of A/D converter 74.After treatment, deposit the built-in storage of 8031 single-chip microcomputers 77 in, and through printer 79 printouts.The testing process of level, vertical two components is identical.

Part tests the speed: during train operation, wheel whenever circles, and tachogenerator 3 is just exported a pulse, after frequency multiplier 80 and frequency divider 81 handled, becomes every meter pulse train, has the records of distance by the log and uses when measuring the instantaneous speed of a motor vehicle for 8031 single-chip microcomputers 77.The result that has the records of distance by the log is shown automatically by mileage display screen 14.When having the records of distance by the log, 8031 single-chip microcomputers 77 are counted subtraction or addition according to up, following line flag.At each whole kilometer place, send sound indication by audible indicator 82, and print the instantaneous speed of a motor vehicle by printer 79.

Print and select: when selecting " having the records of distance by the log ", press and print selector switch 15, must use tachogenerator 3 simultaneously.When the vibration acceleration of train surpassed the standard of setting by speed of a motor vehicle classification, memory stored this information, and printer 79 prints data and transfer out.When selecting " transfiniting ", do not use tachogenerator 3.At this moment, complete machine is no longer had the records of distance by the log and is tested the speed.When horizontal vibration surpasses 0.06g, when vertical vibration surpassed 0.08g, memory just degree of will speed up value stored, and is printed with printer 79, and exports away.Because can preset mileage with presetting mileage code-disc 20 at any time, so, should make data by the mileage segmentation, so that the comprehensive condition of each section of statistical analysis circuit.

Microcomputer communication: when PC 83 starts, and after dedicated program moved, will detect/communication switch dials to " communication " on one side.Connect the power supply of high intelligent track dynamic chek instrument, 8031 single-chip microcomputers 77 just flow to PC 83 by microcomputer communication interface 86 one group by one group with the data in the built-in storage.When data enter PC 83, and after the treated deposit, the data of high intelligent track dynamic chek instrument can be eliminated, and no longer keep.Therefore, as long as double pressing " reset button " 17,8031 single-chip microcomputers 77 can be with the centre data full scale clearance of built-in storage in 1 second.

System calibrating: the square wave of the 1.5625HZ that demarcation signal draws from the crystal oscillator frequency division, after wave filter 87 and power amplifier 88 amplifications, be added to current constant mode on the calibration coil of two acceleration transducers 65,89, make accelerometer produce the vibration that is equivalent to 0.4g.

Embodiment:

The controller of main frame is the 80C31 chip of MOS-51 series, operating voltage+5V, and clock frequency is 4MHZ.The power-off protector power supply is the efficient lithium battery of 4.5V.With the interface circuit of microcomputer be extensive integrated circuit 82C55.The analogue amplifier part is made up of 8 operational amplifier LM308, alternative route LM339 comparator, and the voltage supplied in the power-supply system is DC ± 6V, battery is the efficient sealed battery of 10AH.The demarcation signal frequency is 1.5625HZ.The printer control chip is 8049.Group of magnets component in tachogenerator high strength magnetic material neodymium iron boron.

The utility model compared with prior art has the following advantages:

1, accuracy of detection height, stable performance, good reliability.

2, the capacity of memory is big, has set up the microcomputer communication interface, measurement data can be sent to PC and other increase-volume machine carries out statistical analysis and file.

Claims (1)

1, a kind of track dynamic somascope of being made up of main frame and sensor is characterized in that: be provided with the microcomputer communication interface in the high intelligent track dynamic chek instrument, can send survey data to PC and other compatible carries out statistical analysis and file; Sensor is made up of acceleration transducer and tachogenerator two parts: there are transformer, battery, the fixing card of battery, normal acceleration meter, horizontal accelerometer, charger circuit board and stabilizator fin in the inside of acceleration transducer, there are shell and panel in the outside of acceleration transducer, and signal accessory power outlet, power output socket, interchange input socket, indicator lamp, fuse holder and voltmeter are arranged on the panel; Group of magnets component on the tachogenerator is contained in respectively on train wheel and the generator pulley, the group of magnets component is made up of strong magnet and stainless steel bent plate, induction coil is contained in the left end of fixed frame, be fixed on the bogie with fixed frame and fixed frame fishbolt, on the fixed frame fishbolt, rotary handle is housed, fix with the regulating arm clamp nut between fixed frame and the regulating arm, two tachometer signal accessory power outlets are housed at the middle part of regulating arm, induction coil is arranged at the regulating arm bottom.

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