CN208165009U - A kind of wheel hurt detection device - Google Patents
A kind of wheel hurt detection device Download PDFInfo
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- CN208165009U CN208165009U CN201820515888.6U CN201820515888U CN208165009U CN 208165009 U CN208165009 U CN 208165009U CN 201820515888 U CN201820515888 U CN 201820515888U CN 208165009 U CN208165009 U CN 208165009U
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- wheel
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- acceleration transducer
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- data collector
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Abstract
The utility model discloses a kind of wheel hurt detection device, and described device includes：Acceleration transducer, data collector, processor；The acceleration transducer is located at the axle box of wheel pair, and the output end of the acceleration transducer is connect by signal wire with the input terminal of the data collector；The input terminal of the processor connects the output end of the data collector, wheel Vertical Acceleration data information for being exported according to the data collector obtains the time-frequency figure of wheel vertical vibration, so that staff determines according to the time-frequency figure type of wheel hurt.Using the device of the utility model, the hurt detection efficiency of wheel hurt detection device can be improved with the wheel hurt information during the online road transport row of real-time detection vehicle.It is not stringent to the status requirement of acceleration transducer since acceleration transducer is to calculate acceleration according to the frequency of wheel, measurement result will not be influenced because of the position of acceleration transducer.
Description
Technical field
The utility model relates to intelligent measurement fields, more particularly to a kind of wheel hurt detection device.
Background technique
Longtime running will cause different degrees of wheel circumferentially abrasion hurt problem to rail truck on the line, main to show
For wheel out of round and flat bar of wheel.Wheel out of round refers to that different degrees of deformation occurs in wheel, such as is deformed into oval (2 ranks
It is non-round), triangle (3 ranks are non-round), flat bar of wheel of quadrangle (4 ranks are non-round) ... refer to that wheel locally occurs wearing or defect,
Such as there is gap or local defect.Wheel hurt can cause the high vibration between wheel track, seriously affect the dynamics of vehicle
Performance and passenger's ride comfort, while the noise generated also influences interior external environment, and violent vibration will lead to vehicle
With the fatigue failure of track components, directly jeopardize traffic safety.Therefore, there is detection wheel hurt degree important engineering to anticipate
Justice is the important evidence of rail truck safe early warning and health monitoring.
Existing wheel hurt detection device is mainly mechanical wheel out of round degree measuring device：Measuring instrument is fixed on
On rail, wheel is erected vacantly by jack, using high accuracy displacement sensor and angel measuring instrument, wheel is measured and is revolving
The radial beat eccentricity for the process that circles further determines that the degree of wheel hurt by analyzing data.It is surveyed using wheel out of round degree
The test job for measuring device is cumbersome, and the wheel for testing of permutation vehicle needs several hours, wastes time and manpower；In addition, wheel
Non-roundness measurement device can only carry out off-line test after vehicle stops library.Therefore, the hurt of existing wheel hurt detection device
Detection efficiency is low.
Summary of the invention
The purpose of the utility model is to provide a kind of wheel hurt detection devices, pass through the online road transport row of real-time detection vehicle
Wheel hurt information in the process, to improve the hurt detection efficiency of wheel hurt detection device.
To achieve the above object, the utility model provides following scheme：
A kind of wheel hurt detection device, described device include：Acceleration transducer, data collector, processor；It is described
Acceleration transducer is located at the axle box of wheel pair, and the output end of the acceleration transducer is acquired by signal wire and the data
The input terminal of device connects；The input terminal of the processor connects the output end of the data collector, for according to the data
The wheel Vertical Acceleration data information of collector output obtains the time-frequency figure of wheel vertical vibration, so as to staff's root
The type of wheel hurt is determined according to the time-frequency figure.
Optionally, described device further includes display, and the input terminal of the display connects the output end of the processor,
For showing the time-frequency figure.
Optionally, the acceleration transducer is piezoelectric acceleration transducer.
Optionally, the range of the acceleration transducer is at least 700g.
Optionally, the sample frequency of the data collector is greater than 10kHz.
Optionally, the data collector is used to amplify the voltage signal of the acceleration transducer, and is converted to vehicle
Take turns Vertical Acceleration data information.
Optionally, the data collector is also used to as acceleration transducer power supply.
Optionally, the processor is also used to obtain wheel wound according to vibration acceleration-three dimension table of wavelength-depth of convolution
Damage grade.
Optionally, the display is also used to show the wheel hurt grade.
Optionally, the processor is vehicle-mounted industrial personal computer.
According to specific embodiment provided by the utility model, the utility model discloses following technical effects：
Acceleration transducer is set at the axle box of wheel pair, acquires the vertical acceleration of wheel in real time, pass through signal wire
Obtain the time-frequency of wheel acceleration according to the data of acceleration transducer by vehicle-mounted industrial personal computer to data collector real-time Transmission
Figure, so that staff judges whether wheel out of round or flat bar occur according to spectrum signature, it is online to realize real-time detection vehicle
Wheel hurt information during road transport row, improves the hurt detection efficiency of wheel hurt detection device.In specific embodiment party
In formula, if there is wheel out of round or flat bar, it can be looked into according to above-mentioned vibration acceleration-three dimension table of wavelength-depth of convolution
Meter is calculated, and determines quantitative wheel hurt degree.Since acceleration transducer is to calculate acceleration according to the frequency of wheel,
It is not stringent to the status requirement of acceleration transducer, measurement result will not be influenced because of the position of acceleration transducer.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the utility model wheel hurt structure diagram of detection device；
Fig. 2 is the time-frequency figure of the wheel out of round of the utility model wheel hurt detection device output；
Fig. 3 is flat bar of wheel of time-frequency figure of the utility model wheel hurt detection device output.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
Fig. 1 is the utility model wheel hurt structure diagram of detection device.As shown in Figure 1, described device includes：Acceleration passes
Sensor 101, data collector 102, processor 103；
The acceleration transducer 101 is located at the axle box 104 of wheel pair, since acceleration transducer 101 is according to wheel
105 frequency further obtains the acceleration of wheel, and therefore, the status requirement that acceleration transducer 101 is located at axle box 104 is not tight
No matter lattice do not influence the accuracy of device detection, during installation can according to the actual situation be pacified for which positions
Dress.Acceleration transducer 101 is piezoelectric acceleration transducer, for acquiring the acceleration of 105 vertical vibration of wheel.Acceleration
The range of sensor 101 is at least up to 700g, and BK piezoelectric type high frequency sound acceleration sensing can be used in acceleration transducer 101
Device.
The output end of the acceleration transducer 101 is connected by the input terminal of signal wire 107 and the data collector 102
It connects；102 one side of data collector is used to receive the electric signal of acceleration transducer 101, amplifies to electric signal, and according to
The electric signal calculates corresponding acceleration information information；On the other hand for powering for acceleration transducer 101.Data acquisition
The sample frequency that device 102 is arranged is 10kHz or more, and HBM eDAQ data collection system can be used in data collector 102.
The input terminal of the processor 103 connects the output end of the data collector 102, for being adopted according to the data
The wheel Vertical Acceleration data information that storage 102 exports obtains the time-frequency figure of wheel vertical vibration, so as to staff
The type of wheel hurt is determined according to the time-frequency figure.The time-frequency characteristics of wheel out of round show as continuous lateral straps, and should
Frequency changes with the variation of speed；The time-frequency characteristics that flat bar of wheel show as periodic impact of collision band, every longitudinal direction
The frequency that item takes is the frequency multiplication that wheel turns frequency, if the interval T of two neighboring band is the period that wheel rolling one encloses,
Occur flat bar of wheel.The processor 103 can use vehicle-mounted industrial personal computer.Processor 103 can also be according to the vibration of storage inside
Dynamic acceleration-three dimension table of wavelength-depth of convolution, obtains wheel hurt grade.
Described device can also include display screen 108, and the input terminal of display screen 108 connects the output of the processor 103
End, for showing time-frequency figure.It is also used to show wheel hurt grade.
Wheel 105 may be implemented on rail 106 in driving process in described device, obtains time-frequency figure, staff in real time
The type of wheel hurt is obtained according to time-frequency figure.Wheel hurt grade can also be directly obtained.
Fig. 2 is the wheel out of round time-frequency figure of the utility model wheel hurt detection device output.Fig. 3 is the utility model vehicle
Take turns flat bar of time-frequency figure of wheel of hurt detection device output.
The process that the data that processor is transmitted according to data collector specifically obtain time-frequency figure is：
The pretreatment such as denoised, go drift to the data of data collector transmission, to wheel vertical acceleration data into
Row Short Time Fourier Transform and the time-frequency figure for obtaining unsteadiness of wheels.
The time-frequency characteristics of wheel out of round show as continuous lateral straps, and the frequency changes with the variation of speed, lead to
The order N of wheel out of round can be determined by crossing formula N=2 π r*f/V, and wherein r is radius of wheel, and f is the master that wheel out of round generates
Frequently, V is speed.
The time-frequency characteristics that flat bar of wheel show as periodic impact of collision band, and the frequency on every longitudinal band is
Wheel turns the frequency multiplication of frequency, if the interval T of two neighboring band is the period that wheel rolling one encloses, i.e. T meets T=2 π r/V, then
Occur flat bar of wheel.
It is stored in processor based on vehicle-rail system kinetic model, is tested using circuit pack test data
Model of a syndrome validity.Become by calculating wheel out of round and flat bar of unsteadiness of wheels acceleration, foundation under different wave length and the depth of convolution
About vibration acceleration-three dimension table of wavelength-depth of convolution.
Wheel acceleration is acquired in real time using the device, calculates the time-frequency figure of wheel acceleration, according to frequency spectrum spy
Sign judges whether wheel out of round or flat bar occur.When Fig. 2 is the wheel out of round of the utility model wheel hurt detection device output
Frequency is schemed, as shown in Fig. 2, time-frequency characteristics show as continuous lateral straps, due in speed-raising or down speeding procedure, and the frequency of time-frequency figure
It can rise or fall, this is because N is constant, V is becoming, therefore f can also become.Therefore, speed is promoted during 550s-600s in Fig. 2,
Frequency variation is ascendant trend in lateral straps, and speed declines during 800s-900s, and frequency variation becomes in lateral straps for decline
Gesture, but the judgement of wheel damage is not influenced.Fig. 3 is flat bar of time-frequency of wheel of the utility model wheel hurt detection device output
Figure, as shown in figure 3, time-frequency characteristic shows as impact of collision band.
If there is wheel out of round or flat bar, table look-up according to above-mentioned vibration acceleration-three dimension table of wavelength-depth of convolution
It calculates, can determine quantitative wheel hurt degree.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the method and its core concept of the utility model；Meanwhile for the general technology of this field
Personnel, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.In conclusion
The content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of wheel hurt detection device, which is characterized in that described device includes：Acceleration transducer, data collector, place
Manage device；The acceleration transducer is located at the axle box of wheel pair, and the output end of the acceleration transducer passes through signal wire and institute
State the input terminal connection of data collector；The input terminal of the processor connects the output end of the data collector, is used for root
The time-frequency figure of wheel vertical vibration is obtained according to the wheel Vertical Acceleration data information that the data collector exports, so as to
Staff determines the type of wheel hurt according to the time-frequency figure.
2. the apparatus according to claim 1, which is characterized in that described device further includes display, the display it is defeated
Enter the output end that end connects the processor, for showing the time-frequency figure.
3. the apparatus according to claim 1, which is characterized in that the acceleration transducer is piezoelectric type acceleration sensing
Device.
4. the apparatus according to claim 1, which is characterized in that the range of the acceleration transducer is at least 700g.
5. the apparatus according to claim 1, which is characterized in that the sample frequency of the data collector is greater than 10kHz.
6. the apparatus according to claim 1, which is characterized in that the data collector is used for the acceleration transducer
Voltage signal amplification, and be converted to wheel Vertical Acceleration data information.
7. the apparatus according to claim 1, which is characterized in that the data collector is also used to as the acceleration sensing
Device power supply.
8. the apparatus according to claim 1, which is characterized in that the processor is also used to according to vibration acceleration-wavelength-
Three dimension tables of the depth of convolution obtain wheel hurt grade.
9. the apparatus of claim 2, which is characterized in that the display is also used to show described wheel hurt etc.
Grade.
10. according to claim 1 or 4 described in any item devices, which is characterized in that the processor is vehicle-mounted industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515888.6U CN208165009U (en) | 2018-04-12 | 2018-04-12 | A kind of wheel hurt detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820515888.6U CN208165009U (en) | 2018-04-12 | 2018-04-12 | A kind of wheel hurt detection device |
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| CN208165009U true CN208165009U (en) | 2018-11-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515984A (en) * | 2018-04-12 | 2018-09-11 | 成都西交智众科技有限公司 | A kind of wheel hurt detection method and device |
| CN110261482A (en) * | 2019-07-26 | 2019-09-20 | 招商局重庆公路工程检测中心有限公司 | Roller type collector and acquisition device |
| CN110816588A (en) * | 2019-12-04 | 2020-02-21 | 中车株洲电力机车有限公司 | Locomotive wheel out-of-roundness detection method, device, equipment and system |
-
2018
- 2018-04-12 CN CN201820515888.6U patent/CN208165009U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108515984A (en) * | 2018-04-12 | 2018-09-11 | 成都西交智众科技有限公司 | A kind of wheel hurt detection method and device |
| CN108515984B (en) * | 2018-04-12 | 2024-02-13 | 成都西交智众科技有限公司 | Wheel damage detection method and device |
| CN110261482A (en) * | 2019-07-26 | 2019-09-20 | 招商局重庆公路工程检测中心有限公司 | Roller type collector and acquisition device |
| CN110261482B (en) * | 2019-07-26 | 2024-02-23 | 招商局重庆公路工程检测中心有限公司 | Roller type collector and collecting device |
| CN110816588A (en) * | 2019-12-04 | 2020-02-21 | 中车株洲电力机车有限公司 | Locomotive wheel out-of-roundness detection method, device, equipment and system |
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