CN201742320U - Vibrator capable of automatically tracking frequency - Google Patents
Vibrator capable of automatically tracking frequency Download PDFInfo
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- CN201742320U CN201742320U CN2010201943895U CN201020194389U CN201742320U CN 201742320 U CN201742320 U CN 201742320U CN 2010201943895 U CN2010201943895 U CN 2010201943895U CN 201020194389 U CN201020194389 U CN 201020194389U CN 201742320 U CN201742320 U CN 201742320U
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Abstract
A vibrator capable of automatically tracking frequency includes a controller and a giant magnetostrictive vibration exciter; the controller includes a parameter initialization module, a data acquisition module, a giant magnetostrictive vibration exciter sensitive signal processing module, a sweep frequency module, a work frequency automatic-tracking module, and a drive power supply frequency control and current control module; the giant magnetostrictive vibration exciter includes a controllable power supply, a drive coil and a GMM bar; and the controller collects the running state signals of a vibration system, the frequency tracking of the vibration system can be realized after operation processing, and the vibration frequency of a vibration aging device always keeps in step with the resonant frequency of a vibrated aging workpiece, therefore, the work efficiency of the system can retain the highest state.
Description
Technical field
The utility model relates to a kind of vibrating device that oscillating aging is handled that is used for, and particularly a kind of frequency can be from the vibrating device of motion tracking.
Background technology
At present, be used for the device that oscillating aging handles both at home and abroad and comprise mechanical vibration exciter, controller and acceleration transducer.Mechanical vibration exciter is made up of motor and eccentric block thereof, is installed on the hardware that needs oscillating aging, by control circuit control rotating speed of motor, vibrates on a certain resonance frequency of member.Its exciting force is obtained by the driven by motor eccentric stiffener of an adjustable speed, and excited frequency also can be regulated within the specific limits by the motor speed decision, is approximately 30-170Hz.
Because be subjected to the influence of motor deadweight and rotating speed, traditional oscillating aging equipment work frequency range is narrower, be difficult to obtain higher shaking frequently.In the practical application, its natural frequency of middle-size and small-size workpiece is far above the maximum operating frequency of traditional oscillating aging equipment, when the workpiece resonance frequency is too high, is difficult to therefore can't obtain best timeliness effect to the workpiece processing of resonating; Large complicated member, owing to the influence that is subjected to reasons such as motor speed stability, stress distribution are too complicated and bulky, it is inhomogeneous that oscillating aging causes stress to reduce, thus the timeliness poor effect; When micro parts carries out oscillating aging, huge because of existing vibration generator volume, then be difficult to little member is carried out exciting effectively.In addition, motor, bearing and eccentric part are fragile when dither, and work noise is big, and high-speed electric expreess locomotive causes equipment heavy, regulate inconvenience.
Traditional oscillating aging processing unit, what the vibratory response of detection workpiece was adopted all is acceleration (or amplitude) transducer, when different workpieces was carried out Ageing Treatment, the operating frequency of regulating vibration generator needed by transducer to measure the resonance frequency of processed workpiece in advance, and carry out the adjustment of operating frequency.But, factors such as workpiece material, weight, shape, rigidity can cause the resonance frequency of various workpiece to be not quite similar, and the size of resonance frequency is also relevant with the selection of exciting point, the strong point, when then different workpieces being carried out Ageing Treatment, just need carry out the detection of resonance frequency, so both time-consuming also uneconomical.
Summary of the invention
The purpose of this utility model is to provide at defective of the prior art a kind of frequency can be from the vibrating device of motion tracking.
The technical scheme that the utility model solves wherein technical problem employing is:
A kind of frequency can comprise controller and ultra-magnetic telescopic vibration generator from the vibrating device of motion tracking; Its middle controller comprises parameter initialization module, data acquisition module, ultra-magnetic telescopic vibration generator perceptual signal processing module, frequency sweep module, operating frequency automatic tracking module, and driving power FREQUENCY CONTROL and current control module; Described ultra-magnetic telescopic vibration generator comprises controllable electric power, drive coil and GMM rod;
The driving power FREQUENCY CONTROL of controller is connected with the controllable electric power of current control module with the ultra-magnetic telescopic vibration generator, the data acquisition module of controller is connected with the drive coil of ultra-magnetic telescopic vibration generator, the GMM of ultra-magnetic telescopic vibration generator rod with contacted by the oscillating aging workpiece; Controller, ultra-magnetic telescopic vibration generator and constituted vibrational system by the oscillating aging workpiece;
The driving power FREQUENCY CONTROL of controller and current control module drive the controllable electric power of ultra-magnetic telescopic vibration generator, and then drive coil drives the stretching vibration of GMM rod, simultaneously the drive coil motion state signal that will induce vibrational system transfers to the data acquisition module of controller, through ultra-magnetic telescopic vibration generator perceptual signal processing module, the frequency sweep module, the operating frequency automatic tracking module can obtain the resonant operation point of vibrational system, make operating frequency, with identical by the resonance frequency of oscillating aging workpiece by the driving power of driving power FREQUENCY CONTROL and current control module output.
Further, said frequencies can also comprise filter circuit from the vibrating device of motion tracking, but the driving power signal in this filter circuit filtering ultra-magnetic telescopic vibration generator.
The utility model is compared with background technology, the beneficial effect that has is: compare with traditional vibration ageing device, the abridged acceleration transducer, and the vibration frequency of vibration ageing device all the time with remained consistently by the resonance frequency of oscillating aging workpiece, system works efficient is maintained the highest state.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that motion perceptual signal principle schematic is measured in a kind of analysis of bridge
The specific embodiment mode
As shown in Figure 1, a kind of frequency can comprise controller 1 and ultra-magnetic telescopic vibration generator 2 from the vibrating device of motion tracking, controller 1, ultra-magnetic telescopic vibration generator 2 and constituted a vibrational system by oscillating aging workpiece 3.
In the oscillating aging process, several initialization modules 11 of controller 1 at first send one road signal through data acquisition module 12, ultra-magnetic telescopic vibration generator perceptual signal processing module 13, frequency sweep module 14, operating frequency automatic tracking module 15, and driving power FREQUENCY CONTROL and current control module 16 are to the controllable electric power 21 of ultra-magnetic telescopic vibration generator 2,22 1 initialization frequencies of controllable electric power 21 given drive coils, drive coil 22 drive 23 stretching vibrations of GMM rod.Because loading, GMM rod 23 gives, so the stretching vibration of GMM23 drives oscillating aging workpiece 3 vibration together by the surface of oscillating aging workpiece 3.
Because magnetostrictive back wash effect, drive coil 22 both can drive the stretching vibration of GMM23, can induce the motion state of vibrational system again.The motion state signal of the vibrational system that the acquisition module of controller 2 induces drive coil 22, gather and transfer to ultra-magnetic telescopic vibration generator perceptual signal processing module 13 and carry out calculation process, its output signal is handled through frequency sweep module 14, operating frequency automatic tracking module 15, can obtain the resonant operation point of vibrational system, the operating frequency of the controllable electric power of the control ultra-magnetic telescopic vibration generator 2 of this moment driving power FREQUENCY CONTROL and current control module 16 outputs is with identical by the resonance frequency of timeliness workpiece.
In addition in order from the ultra-magnetic telescopic vibration generator, to detect perceptual signal, driving power signal in must the filtering vibration generator, the filter circuit that present embodiment provides is a kind of bridge circuit, is proportional to the voltage of strain rate with the analysis of bridge measurement, but perception goes out to need the parameter of detection, as shown in Figure 2.The single-end circuit model of ultra-magnetic telescopic vibration generator can be reduced to the left upper arm of bridge circuit among Fig. 2, promptly resistance r1 and the equivalent inductance L1 with the proportional induced voltage Um of speed, drive coil that is produced by the ultra-magnetic telescopic back wash effect forms, for the ease of obtaining detection signal Um, the parameter of element should be identical with the parameter of element on the detection brachium pontis on the balance brachium pontis in the bridge circuit.Bridge circuit can equivalence be a firstorder filter for the effect of Um, and cut-off frequency is ω
0=(r
4+ r
1)/L
1, the differential voltage of bridge circuit output is carried out the signal amplification can obtain perceptual signal.
Claims (2)
1. a frequency can is characterized in that from the vibrating device of motion tracking: comprise controller and ultra-magnetic telescopic vibration generator; Described controller comprises parameter initialization module, data acquisition module, ultra-magnetic telescopic vibration generator perceptual signal processing module, frequency sweep module, operating frequency automatic tracking module, and driving power FREQUENCY CONTROL and current control module; Described ultra-magnetic telescopic vibration generator comprises controllable electric power, drive coil and GMM rod;
The driving power FREQUENCY CONTROL of controller and current control module are connected with the controllable electric power of ultra-magnetic telescopic vibration generator, the data acquisition module of controller is connected with the drive coil of ultra-magnetic telescopic vibration generator, the GMM of ultra-magnetic telescopic vibration generator rod with contacted by the oscillating aging workpiece; Controller, ultra-magnetic telescopic vibration generator and constituted vibrational system by the oscillating aging workpiece,
The driving power FREQUENCY CONTROL of controller and current control module drive the controllable electric power of ultra-magnetic telescopic vibration generator, and then drive coil drives the stretching vibration of GMM rod, simultaneously the drive coil motion state signal that will induce vibrational system transfers to the data acquisition module of controller, through ultra-magnetic telescopic vibration generator perceptual signal processing module, the frequency sweep module, the operating frequency automatic tracking module can obtain the resonant operation point of vibrational system, make the operating frequency of the driving power of driving power FREQUENCY CONTROL and current control module output, with identical by the resonance frequency of oscillating aging workpiece.
2. a kind of frequency according to claim 1 can is characterized in that from the vibrating device of motion tracking: also comprise filter circuit, the driving power signal in the described filter circuit filtering ultra-magnetic telescopic vibration generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201943895U CN201742320U (en) | 2010-05-18 | 2010-05-18 | Vibrator capable of automatically tracking frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201943895U CN201742320U (en) | 2010-05-18 | 2010-05-18 | Vibrator capable of automatically tracking frequency |
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| Publication Number | Publication Date |
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| CN201742320U true CN201742320U (en) | 2011-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201943895U Expired - Fee Related CN201742320U (en) | 2010-05-18 | 2010-05-18 | Vibrator capable of automatically tracking frequency |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574425A (en) * | 2018-05-15 | 2018-09-25 | 业成科技（成都）有限公司 | Piezoelectric element resonance compensation circuit and method |
| CN109864876A (en) * | 2019-01-03 | 2019-06-11 | 歌尔股份有限公司 | A kind of circuit, fat reducing machine and the control method of adaptive adjustment vibration frequency |
| CN113992052A (en) * | 2021-10-28 | 2022-01-28 | 河北工业大学 | Magnetostrictive transducer resonant frequency automatic tracking device |
-
2010
- 2010-05-18 CN CN2010201943895U patent/CN201742320U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574425A (en) * | 2018-05-15 | 2018-09-25 | 业成科技（成都）有限公司 | Piezoelectric element resonance compensation circuit and method |
| CN108574425B (en) * | 2018-05-15 | 2019-11-05 | 业成科技（成都）有限公司 | Piezoelectric element resonance compensation circuit and method |
| CN109864876A (en) * | 2019-01-03 | 2019-06-11 | 歌尔股份有限公司 | A kind of circuit, fat reducing machine and the control method of adaptive adjustment vibration frequency |
| CN113992052A (en) * | 2021-10-28 | 2022-01-28 | 河北工业大学 | Magnetostrictive transducer resonant frequency automatic tracking device |
| CN113992052B (en) * | 2021-10-28 | 2023-08-18 | 河北工业大学 | Automatic tracking device for resonant frequency of magnetostrictive transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110518 |