CN206906025U - The detection means of bearing - Google Patents
The detection means of bearing Download PDFInfo
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- CN206906025U CN206906025U CN201720623002.5U CN201720623002U CN206906025U CN 206906025 U CN206906025 U CN 206906025U CN 201720623002 U CN201720623002 U CN 201720623002U CN 206906025 U CN206906025 U CN 206906025U
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- detection means
- bearing
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- 238000001514 detection method Methods 0.000 title claims abstract description 54
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 11
- 230000001133 acceleration Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- 230000006855 networking Effects 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Abstract
The utility model discloses a kind of detection means of bearing and method.The detection means includes the vibrative sensor and processor being embedded at respectively in the same part of bearing, and the processor is connected with the vibrative sensor；The detection means also includes transmitting antenna and reception antenna, and the transmitting antenna is embedded in the part where the vibrative sensor, and the reception antenna is arranged at outside the bearing.Using the technical scheme of the utility model embodiment, sensor can be made to be set as far as possible close to bearing, so as to reduce the decay of bearing fault signal.
Description
Technical field
It the utility model is related to technical field of bearings, more particularly to a kind of detection means of bearing.
Background technology
At present, bearing is a kind of common part in contemporary plant equipment.In order to avoid bearing is unexpected in the process of running
Failure, it usually needs monitor the initial failure signal of bearing.
In the prior art, for the above-mentioned initial failure signal of monitoring, the install sensor typically on bearing block, this bearing
The separately positioned mode with sensor, the die-away time of the initial failure signal of bearing will be caused to extend, and due to the morning of bearing
Phase disablement signal is small-signal, and the extension of die-away time easilys lead to the initial failure signal of bearing by noise takeover, makes
The initial failure signal of bearing can not effectively be collected by obtaining sensor, so as to make early warning to the initial failure of bearing.
Utility model content
The utility model embodiment provides a kind of bearing fault detection device, can effectively collect the early stage of bearing
Fault-signal, so as to make early warning to the initial failure of bearing.
In a first aspect, the utility model embodiment provides a kind of detection means of bearing, including bearing is embedded at respectively
The same part in vibrative sensor and processor, processor is connected with vibrative sensor；Detection means also includes hair
Penetrate antenna and reception antenna, transmitting antenna is embedded in the part where vibrative sensor, and reception antenna is arranged at the axle
Hold outer.
In some embodiments of first aspect, the same part of bearing includes outer ring, retainer or the inner ring of bearing.
In some embodiments of first aspect, vibrative sensor include piezoelectric transducer, reluctance head sensor and/
Or resistance strain type sensor.
In some embodiments of first aspect, vibrative sensor is packaged in the structure of ceramic package.
In some embodiments of first aspect, detection means also includes：
It is disposed in proximity to the energy radiating antenna of the opening position of bearing；
The electromagentic resonance antenna being embedded in the part where vibrative sensor, electromagentic resonance antenna respectively with micro-vibration
Sensor connects with processor.
In some embodiments of first aspect, energy radiating antenna is arranged on bearing block.
In some embodiments of first aspect, detection means also includes being embedded in the part where vibrative sensor
AC-DC converter, AC-DC converter is connected with electromagentic resonance antenna, vibrative sensor and processor respectively.
In some embodiments of first aspect, detection means also includes being embedded in the part where vibrative sensor
Voltage-stablizer, voltage-stablizer is connected with AC-DC converter, vibrative sensor and processor respectively.
In some embodiments of first aspect, detection means also includes being embedded in the part where vibrative sensor
Bandpass filter, bandpass filter is connected with vibrative sensor and processor respectively.
In some embodiments of first aspect, detection means also includes being embedded in the part where vibrative sensor
Temperature sensor, temperature sensor is connected with transmitting antenna.
In embodiment of the present utility model, vibrative sensor and processor are embedded in the same part of bearing,
Processor is connected with vibrative sensor.Because vibrative sensor is embedded into bearing so that the initial failure signal of bearing
Die-away time shorten, so as to effectively collect the initial failure signal of bearing, processor can is according to micro-vibration
The effective initial failure signal of sensor collection, is accurately judged to the initial failure of bearing, and then early stage event is made to bearing
Hinder early warning.
Brief description of the drawings
This practicality may be better understood from the description to specific embodiment of the present utility model below in conjunction with the accompanying drawings
It is new wherein, same or analogous reference represents same or analogous feature.
Fig. 1 is the structural representation of the detection means of the bearing of the utility model one embodiment；
Fig. 2 is the structural representation of the detection means of the bearing of another embodiment of the utility model；
Fig. 3 is the circuit connection diagram of the detection means of the bearing of the utility model one embodiment；
Fig. 4 is the signal connection diagram of the detection means of the bearing of the utility model one embodiment；
Fig. 5 is the schematic flow sheet of the detection method of the bearing of the utility model one embodiment；
Fig. 6 is the schematic flow sheet of the detection method of the bearing of another embodiment of the utility model.
Description of reference numerals：
1-vibrative sensor；2-processor；3-outer ring；
4-retainer；5-inner ring；6-transmitting antenna；
7-reception antenna；8-electromagentic resonance antenna；9-energy radiating antenna；
10-bearing block.
Embodiment
The feature and exemplary embodiment of the various aspects of the utility model embodiment is described more fully below.Following
In detailed description, it is proposed that many details, to provide the comprehensive understanding to the utility model embodiment.But for
It will be apparent that the utility model embodiment can be in some in not needing these details for those skilled in the art
Implement in the case of details.Below to embodiment description be used for the purpose of by the example of the utility model embodiment is shown come
Offer is better understood to the utility model embodiment.The utility model embodiment is never limited to any tool set forth below
Body configures and algorithm, but element, part and algorithm are covered on the premise of the spirit of the utility model embodiment is not departed from
Any modification, replacement and improvement.In the the accompanying drawings and the following description, known structure and technology is not shown, to avoid
Unnecessary obscure is caused to the utility model embodiment.
The method and apparatus for the Bearing testing that the utility model embodiment provides, the malfunction monitoring field applied to bearing.
Sensor contact bearing to greatest extent can be made, avoid decay of the fault-signal of bearing in transmittance process.This practicality is new
The method and apparatus for the Bearing testing that type embodiment provides can carry out health status detection to the bearing of aircraft engine.
Fig. 1 is the structural representation of the detection means for the bearing that the utility model embodiment provides.As shown in figure 1, this reality
With the detection means of new embodiment, including the vibrative sensor 1 and processor being embedded at respectively in the same part of bearing
2, processor 2 is connected with vibrative sensor 1；Detection means also includes transmitting antenna 6 and reception antenna 7, and transmitting antenna 6 is embedded
In the part where vibrative sensor 1, reception antenna 7 is arranged at outside the bearing.
Wherein, vibrative sensor 1 can be MEMS (Micro-electromechanical Systems, micro-electro-mechanical systems
System) vibrating sensor.MEMS vibrating sensors are a kind of high-precision vibrating sensors of single-chip, detection that can be exactly accurate
Bear vibration and unconventional situation, vibration frequency is up to 22kHZ.The smaller and easy fixation of the size that MEMS vibrating sensors have
The characteristics of, it can be packaged in the structure of ceramic package.For example MEMS vibrating sensors can be encapsulated in a small size
In the ceramic package of (such as 5mm × 5mm), then it is embedded in together in mechanical part to be detected.
The operation principle of vibrative sensor 1 is：Input by the original mechanical quantity to be surveyed as vibrative sensor 1
Amount, is then received by mechanical receiving portion, another mechanical quantity for being suitable for conversion is formed, finally by mechanoelectric conversion part
Mechanical quantity is transformed to electricity again.According to mechanoelectric conversion part to the electricity conversion form of mechanical quantity, the utility model embodiment
In the vibrative sensor 1 that can use include piezoelectric transducer, reluctance head sensor and/or resistance strain type sensor.
It should be noted that the above-mentioned mode that vibrative sensor 1 is embedded in parts of bearings can have it is a variety of.One
In individual example, the mounting groove to match with the shape of vibrative sensor 1 can be opened up in parts of bearings, micro-vibration is sensed
Device 1 is installed in opened up groove, and vibrative sensor 1 is fixed by gluing mode.Generally, it is micro- in order to prevent
Vibrating sensor 1 is by the grunge pollution in bearing, so as to be interfered to the fault-signal of bearing, also to micro- biography in mounting groove
Sensor is packaged.Similarly, processor 2 can also be embedded in parts of bearings by the above method.
Can be that micro-vibration is sensed it is understood that on vibrative sensor 1 and the mounting means of processor 2
Device 1 and processor 2 are integrated, will it is integrated after component be integrally embedded in parts of bearings or be respectively embedded into bearing
In part, it is attached by wire.
Because bearing is rotary body, for the signal of vibrative sensor 1 and processor 2 is sent out, the utility model
The detection means of embodiment also includes transmitting antenna 6 and reception antenna 7；Wherein, transmitting antenna 6 is embedded at vibrative sensor 1
In the part at place, reception antenna 7 is arranged at outside bearing.Wherein, transmitting antenna 6 is encapsulated in the flexible PCB of small size
In, flexible PCB is embedded in the place of vibrative sensor 1 by the mounting means for being referred to vibrative sensor 1 above
In part.
In embodiment of the present utility model, by the same part of vibrative sensor 1 and the embedded bearing of processor 2
In, processor 2 is connected with vibrative sensor 1.Because vibrative sensor 1 is embedded into bearing so that the early stage of bearing loses
The die-away time for imitating signal shortens, so as to effectively collect the initial failure signal of bearing, the can of processor 2 according to
The effective initial failure signal that vibrative sensor 1 gathers, is accurately judged to the initial failure of bearing, and then bearing is made
Initial failure early warning.
The installation of bearing, referring to Fig. 1, the same part of above-mentioned bearing are embedded in for convenience of vibrative sensor 1 and processor 2
Outer ring 3, retainer 4 or inner ring 5 including bearing.That is, can be according to actual conditions, by vibrative sensor 1 and place
Device 2 is managed to be embedded in the either component of the outer ring 3 of bearing, retainer 4 and inner ring 5.
It should be noted that the detection means of the utility model embodiment, can be used for detecting ball bearing, can also use
In detection sliding bearing.When the detection means of the utility model embodiment is used to detect sliding bearing, it is only necessary to by micro-vibration
Sensor 1 and processor 2 are installed in the corresponding component of sliding bearing.Certainly, the detection dress of the utility model embodiment
Putting can be used for detecting other machine components in addition to bearing, be not limited herein.
In order to solve the powerup issue of vibrative sensor 1 and processor 2 in bearing rotary.It is new referring to Fig. 2, this practicality
The detection means of type embodiment, in addition to：It is disposed in proximity to the energy radiating antenna 9 of the opening position of bearing；It is embedded at micro-vibration
The electromagentic resonance antenna 8 in part where sensor 1, electromagentic resonance antenna 8 respectively with vibrative sensor 1 and processor 2
Connection.Preferably, energy radiating antenna 9 can be arranged on bearing block 10.
Wherein, energy radiating antenna 9 is connected with external power source, resonant frequency and the energy radiation day of electromagentic resonance antenna 8
The centre frequency of line 9 is consistent, the energy transmitted so as to short distance reception energy radiating antenna 9, in one example, energy
The centre frequency of radiating antenna 9 is 1-3GHz.
Because the electricity that energy radiating antenna 9 transmits can be converted into ac signal by above-mentioned electromagentic resonance electric wire, and
Driving vibrative sensor 1 and processor 2 need DC signal.Therefore, it is also micro- including being embedded at referring to Fig. 3, detection means
The alternating current-direct current AC-DC converter 11 in part where vibrating sensor 1, AC-DC converter respectively with electromagentic resonance antenna 8,
Vibrative sensor 1 and processor 2 connect.
Further, it is to provide stable operating voltage to vibrative sensor 1 and processor 2, detection means also includes
The voltage-stablizer 12 being embedded in the part where vibrative sensor 1, voltage-stablizer 12 respectively with AC-DC converter 11, micro-vibration
Sensor 1 and processor 2 connect.
In addition, referring to Fig. 4, detection means also includes the bandpass filtering being embedded in the part at the place of vibrative sensor 1
Device 13, bandpass filter 13 are connected with vibrative sensor 1 and processor 2 respectively, for the axle detected to vibrative sensor 1
The vibration signal held is filtered processing, improves signal quality.
Further, after the fault message of bearing is obtained, to analyze the reason for causing failure, detection means also includes
The temperature sensor (not shown) being embedded in the part at the place of vibrative sensor 1, temperature sensor and transmitting antenna 6
Connection.
Fig. 5 is the schematic flow sheet of the detection method of the bearing of the utility model one embodiment.As shown in figure 5, bearing
Detection method include step 601- steps 603.
In step 601, the acceleration signal of bearing is detected by the vibrative sensor 1 being embedded in bearing.
Wherein, vibrative sensor 1 is embedded in outer ring 3, retainer 4 or the inner ring 5 of bearing.Vibrative sensor 1 wraps
Include piezoelectric transducer, reluctance head sensor and/or resistance strain type sensor.
In step 602, Fourier transform is carried out to acceleration signal, obtains the characteristic frequency spectrum of bearing.
In step 603, the characteristic frequency of bearing is matched with the fault characteristic frequency of known bearing, obtains axle
The fault message held, that is, judge which part of bearing breaks down.
It is known that the fault characteristic frequency of bearing include the fault characteristic frequency f of inner ring 5i, the fault signature of outer ring 3 frequency
Rate fo, ball fault characteristic frequency fb, retainer 4 touch the fault characteristic frequency f of inner ring 5ciThe failure of inner ring 5 is touched with retainer 4
Characteristic frequency fco.Wherein：
The fault characteristic frequency f of inner ring 5iExpression formula be：
The fault characteristic frequency f of outer ring 3o, expression formula is：
Ball fault characteristic frequency fb, expression formula is：
Retainer 4 touches the fault characteristic frequency f of inner ring 5ci, expression formula is：
Retainer 4 touches the fault characteristic frequency f of inner ring 5co, expression formula is：
In above-mentioned expression formula, D is the pitch diameter of bearing, and d is ball diameter, and α is contact angle, and z is ball number, and R is
The rotating speed of axle.
Fig. 6 is the schematic flow sheet of the detection method of the bearing of another embodiment of the utility model.Fig. 6 and Fig. 5 difference
Part is that the step 502 in Fig. 5 can be refined as step 5021 and step 5022 in Fig. 6；Step in Fig. 6 also includes step
Rapid 504 and step 505.
In step 5021, processing is filtered to acceleration signal.It can remove dry in the acceleration signal of bearing
Signal is disturbed, improves signal quality.
In step 5022, Fourier transform is carried out to the acceleration signal after filtering process, obtains the feature frequency of bearing
Spectrum.
In step 504, bearing is detected by the temperature sensor being embedded in the part at the place of vibrative sensor 1
Temperature signal.
In step 505, the fault message of bearing is analyzed according to temperature signal.
It should be clear that each embodiment in this specification is described by the way of progressive, each embodiment it
Between same or analogous part mutually referring to, what each embodiment stressed be it is different from other embodiment it
Place.For device embodiment, related part may refer to the declaratives of embodiment of the method.The utility model embodiment is simultaneously
It is not limited to particular step and structure described above and shown in figure.Those skilled in the art can understand this reality
After the spirit of new embodiment, it is variously modified, changes and adds, or changes the order between step.Also, it is
For the sake of concise, the detailed description to known method technology is omitted here.
However, it is desirable to clearly, the utility model embodiment is not limited to described above and shown in figure specific
Configuration and processing.Also, the detailed description to known method technology for brevity, is omitted here.In the above-described embodiments,
Some specific steps have been described and illustrated as example.But the procedure of the utility model embodiment is not limited to institute
The specific steps for describing and showing, those skilled in the art can make after the spirit of the utility model embodiment is understood
Go out various changes, modification and addition, or change the order between step.
Functional block shown in structured flowchart above can be implemented as hardware, software, firmware or combinations thereof.When
When realizing in hardware, it may, for example, be electronic circuit, application specific integrated circuit (ASIC), appropriate firmware, plug-in unit, function
Card etc..When being realized with software mode, the element of the utility model embodiment be used to perform needed for task program or
Person's code segment.Either code segment can be stored in machine readable media or the data-signal by being carried in carrier wave program
Sent in transmission medium or communication links." machine readable media " can include any Jie that can store or transmit information
Matter.The example of machine readable media include electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM),
Floppy disk, CD-ROM, CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can be via such as internet, interior
The computer network of networking etc. is downloaded.
Claims (10)
1. a kind of detection means of bearing, it is characterised in that the micro-vibration including being embedded at respectively in the same part of bearing passes
Sensor and processor, the processor are connected with the vibrative sensor；
The detection means also includes transmitting antenna and reception antenna, and the transmitting antenna is embedded at the vibrative sensor institute
Part in, the reception antenna is arranged at outside the bearing.
2. detection means according to claim 1, it is characterised in that the same part of the bearing includes the bearing
Outer ring, retainer or inner ring.
3. detection means according to claim 1, it is characterised in that the vibrative sensor senses including piezoelectric type
Device, reluctance head sensor and/or resistance strain type sensor.
4. detection means according to claim 1, it is characterised in that the vibrative sensor is packaged in ceramic package
In structure.
5. detection means according to claim 1, it is characterised in that the detection means also includes：
It is disposed in proximity to the energy radiating antenna of the opening position of the bearing；
The electromagentic resonance antenna being embedded in the part where the vibrative sensor, the electromagentic resonance antenna respectively with institute
Vibrative sensor is stated to connect with the processor.
6. detection means according to claim 5, it is characterised in that the energy radiating antenna is arranged on bearing block.
7. detection means according to claim 6, it is characterised in that the detection means also includes being embedded at described micro- shake
The alternating current-direct current AC-DC converter in part where dynamic sensor, the AC-DC converter respectively with the electromagentic resonance day
Line, the vibrative sensor connect with the processor.
8. detection means according to claim 7, it is characterised in that the detection means also includes being embedded at described micro- shake
The voltage-stablizer in part where dynamic sensor, the voltage-stablizer respectively with the AC-DC converter, the vibrative sensor
Connected with the processor.
9. detection means according to claim 1, it is characterised in that the detection means also includes being embedded at described micro- shake
The bandpass filter in part where dynamic sensor, the bandpass filter respectively with the vibrative sensor and the place
Manage device connection.
10. detection means according to claim 1, it is characterised in that the detection means is also described micro- including being embedded at
The temperature sensor in part where vibrating sensor, the temperature sensor are connected with the transmitting antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623002.5U CN206906025U (en) | 2017-05-31 | 2017-05-31 | The detection means of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623002.5U CN206906025U (en) | 2017-05-31 | 2017-05-31 | The detection means of bearing |
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| Publication Number | Publication Date |
|---|---|
| CN206906025U true CN206906025U (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720623002.5U Expired - Fee Related CN206906025U (en) | 2017-05-31 | 2017-05-31 | The detection means of bearing |
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| CN (1) | CN206906025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307258A (en) * | 2019-07-11 | 2019-10-08 | 淄博恒星轴承有限公司 | A kind of intelligent bearing and preparation method thereof with thermometric sensing control function |
-
2017
- 2017-05-31 CN CN201720623002.5U patent/CN206906025U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307258A (en) * | 2019-07-11 | 2019-10-08 | 淄博恒星轴承有限公司 | A kind of intelligent bearing and preparation method thereof with thermometric sensing control function |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201118 Address after: 36 2012 Xinnan Community of Shuangyang Street, Luojiang District, Quanzhou City, Fujian Province Patentee after: FATRI UNITED TESTING & CONTROL (QUANZHOU) TECHNOLOGIES Co.,Ltd. Address before: 361008, No. 155, East Xiamen Road, Fujian, No. 3 east hill international business center, building No. 6, No. D Patentee before: FATRI (XIAMEN) TECHNOLOGIES Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |