CN201966830U - Self sensing driving device - Google Patents
Self sensing driving device Download PDFInfo
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- CN201966830U CN201966830U CN2010206512015U CN201020651201U CN201966830U CN 201966830 U CN201966830 U CN 201966830U CN 2010206512015 U CN2010206512015 U CN 2010206512015U CN 201020651201 U CN201020651201 U CN 201020651201U CN 201966830 U CN201966830 U CN 201966830U
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Abstract
Disclosed is a self sensing driving device in the technical field of precision detection. The self sensing driving device comprises a sleeve, an output link, a guide mechanism, a thrust piezoelectric sensing body and a retractable driving device; the guide mechanism is movably arranged in the sleeve; the thrust piezoelectric sensing body is fixedly connected with the retractable driving device; and for the output link, the middle part of the is fixedly connected with the guide mechanism, and the tail end is connected with the thrust piezoelectric sensing body or the retractable driving device. The sensing driving device has the capacity of sensing drive displacement and drive load generated by the sensing driver at the same time, with the feedback and application of the sensing signals of the drive displacement or drive load, the precision drive of the driver can be achieved under the closed-loop control. The driver has high integrated level, a compact structure, high structural strength and sensitive precision sense and drive and is especially suitable for the development of the precision driver and the precision motor.
Description
Technical field
The utility model relates to the device in a kind of precise detection technology field, specifically is a kind of self-sensing drive unit.
Background technology
The displacement driver of traditional approach can only realize the linear drives function usually, and its drive displacement detects and will additionally adopt sensing device to realize usually.For intellectual material driver such as magnetic telescopic driver year in year out, though having simultaneously, this material drives and the sensing function attribute, but in engineering reality, because the decoupling zero of mangneto signal and separates very that realization, and the nonlinear problem of mangneto sensing to be that the mangneto sensing is used for reality possible hardly.Therefore, the integrated drive system that drives with sensing function that can realize simultaneously that can use in engineering reality at present still has bigger difficulty to realize.
Find that through retrieval present driving element mainly is simple driving function element to prior art.Its test that drives effect needs outer sensor to test, be published in J.Micromech.Microeng. in 2006 as document, magnetic telescopic driver and its displacement measurement of linear electric motors described in the 16 phase of the periodical 1227-1232 page or leaf must rely on external laser sensing equipment.System component is many really, the software and hardware system of test require and test condition etc. more complicated requirement all arranged.Drive system does not have integration.Driving separates with sensing, can not become both to drive the intelligent driving system that can carry out self-sensing to driving.
The utility model content
The utility model is at the prior art above shortcomings, a kind of self-sensing drive unit is provided, have drive displacement that can simultaneously sense drive produced and drive the ability of load, by realizing that to drive displacement or the feedback application that drives the perceptual signal of load the precision of driver under closed-loop control drives.This driver integrated level height, compact conformation, structural strength height, sensing and driving are sensitive, accurate.Be particularly suitable for being developed into precision driver and precision electric motor.
The utility model is achieved through the following technical solutions, the utility model comprises: sleeve, take-off lever, guiding mechanism, thrust piezoelectric sensing body and retractable driving device, wherein: guiding mechanism is movably set in the sleeve, thrust piezoelectric sensing body is fixedlyed connected with retractable driving device, and the middle part of take-off lever is fixedly connected with guiding mechanism and terminally be connected with thrust piezoelectric sensing body or retractable driving device.
Be provided with magnetostrictor and displacement piezoelectric sensing body in the described sleeve, wherein: organize magnetostrictor and displacement piezoelectric sensing body more and be connected in series in the sleeve and parallel magnetostrictor and take-off lever sliding contact with guiding mechanism.
Be provided with the biasing permanent magnet between described magnetostrictor and the housing.
Be provided with permanent magnet between described take-off lever and the guiding mechanism.
The utility model relates to a kind of two-way self-sensing drive unit, is connected to form by two above-mentioned self-sensing drive units, and its retractable driving device is linear electric motors.
The driver that the utility model proposed can be realized the sensing function to power output and output displacement, and all sensings and driver part are integrated has formed one and have the driver that self-sensing drives function.
Compared with prior art, the utility model comprises following advantage: 1, realized a kind of driver that has power output and output displacement sensing function concurrently, can make things convenient for realizable force control or displacement control or power and the compound closed loop drive controlling of displacement sensing driver; Driver drives sensing element integrated level height, simple in structure, building block is few, and volume is less and easy for installation, has widely in the using value that drives the Application in Sensing field.
Based on above advantage, self-sensing driver of the present utility model is particularly suitable for making driving and sensing integrated intelligent driver or drive displacement device.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is embodiment 1 schematic diagram.
Fig. 3 is embodiment 2 schematic diagrames.
Fig. 4 is embodiment 3 schematic diagrames.
Fig. 5 is embodiment 4 schematic diagrames.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: sleeve 1, take-off lever 5, guiding mechanism 6, thrust piezoelectric sensing body 7 and retractable driving device 8, wherein: guiding mechanism 6 is movably set in the sleeve 1, thrust piezoelectric sensing body 7 is fixedlyed connected with retractable driving device 8, and the middle part of take-off lever 5 and guiding mechanism 6 are fixedly connected and terminally be connected with thrust piezoelectric sensing body 7.
As shown in Figure 2, described thrust piezoelectric sensing body 7 and retractable driving device 8 also can transpositions.
The course of work of present embodiment is: when retractable driving device 8 is subjected to external drive, be subjected to the external electromagnetic field excitation as retractable driving device 8 for magnetic telescopic driver, its meeting anamorphic stretching, because the lower end of retractable driving device 8 is fixed, its elongation will be delivered to take-off lever 5 by the thrust piezoelectric sensing body 7 that is connected with it, if this moment, take-off lever 5 outer ends were provided with load, take-off lever 5 outer ends will produce power and be applied in the load so.The power that act in the load this moment also acts on the thrust piezoelectric sensing body 7 simultaneously by take-off lever 5.Since thrust piezoelectric sensing body 7 be one as piezoelectric sensing material or piezoelectric transducer, can the signal of telecommunication that is directly proportional with the power size of generation after it is stressed.So when retractable driving device 8 drove, its size that promotes the power of load can be detected simultaneously, so far, realize driving and the actuating force self-sensing integrated driver that produces.
Above mechanism is suitable equally to as shown in Figure 2 piezoelectric sensing body 7 being placed the version of retractable driving device 8 low sides, can realize driving and the actuating force self-sensing integrated driver that produces.
Embodiment 2
As shown in Figure 3, be provided with magnetostrictor 2 and displacement piezoelectric sensing body 3 in the sleeve 1 described in the present embodiment, wherein: magnetostrictor 2 and displacement piezoelectric sensing body 3 are connected in series in the sleeve 1 and with guiding mechanism 6 and parallel, magnetostrictor 2 and take-off lever 5 sliding contacts.
Be provided with permanent magnet 4 between described take-off lever 5 and the guiding mechanism 6.
The course of work of present embodiment is: when retractable driving device 8 is subjected to external drive, be subjected to the external electromagnetic field excitation as retractable driving device 8 for magnetic telescopic driver, its meeting anamorphic stretching, because the lower end of retractable driving device 8 is fixed, its elongation will be delivered to take-off lever 5 by the thrust piezoelectric sensing body 7 that is connected with it, this moment take-off lever 5 will to drive the guiding mechanism 6 and magnetostrictor 2 and the displacement piezoelectric sensing body 3 of permanent magnet 4 in sleeve 1 that are connected with it close, close along with permanent magnet 4, the permanent-magnet-field that magnetostrictor 2 is experienced strengthens gradually, magnetostrictor 2 thereby be subjected to this permanent magnetic field excitation elongation, and should elongation trend produce capable being applied on the displacement piezoelectric sensing body 3, make displacement piezoelectric sensing body 3 produce the signal of telecommunication.The close degree of the intensity of this signal of telecommunication and permanent magnet 4, promptly the displacement that is delivered on the take-off lever 5 of retractable driving device 8 is directly proportional.So can produce the displacement that the signal of telecommunication learns that retractable driving device 8 produces this moment by detecting displacement piezoelectric sensing body 3.Meanwhile, if take-off lever 5 outer ends are provided with load, take-off lever 5 outer ends will produce power and be applied in the load so.The power that act in the load this moment also acts on the thrust piezoelectric sensing body 7 simultaneously by take-off lever 5.Since thrust piezoelectric sensing body 7 be also one as piezoelectric sensing material or piezoelectric transducer, can the signal of telecommunication that is directly proportional with the thrust size of generation after it is stressed.So when retractable driving device 8 drove, its size that promotes the power of load also can be detected.
So far, the sensing integrated driver of driving of institute's utility model can be realized the actuating force in the driving process and drive the integrated self-sensing function of load.
As shown in Figure 4, be provided with biasing permanent magnet 9 between described magnetostrictor 2 and the housing 1.
The course of work of present embodiment is identical with embodiment 2, just structurally is provided with biasing permanent magnet 9 between described magnetostrictor 2 and housing 1.This biasing permanent magnet 9 has can be with the performance of magnetostrictor 2 prebias to its linear extendible interval.Under this kind structure, the drive displacement sensing sensitivity that can realize higher, displacement sensing is more accurate.
As shown in Figure 5, present embodiment is two-way self-sensing drive unit, is connected to form the fixedly connected and formation linear electric motors 10 of its retractable driving device by two self-sensing drive units.
The course of work of present embodiment is:
For the sensing integrated activation configuration of embodiment 1,2,3 described drivings, wherein retractable driving device 8 is substituted by linear electric motors 10, and a self-sensing device can respectively be set at linear electric motors 10 two ends.Under this kind structure, the little displacement of single step that 8 of retractable driving device can produce, the big displacement that will be able to be produced the linear electric motors 10 (as the inchworm motion motor of multistep cumulative motion) of long stroke substitutes.The operation principle same with previous embodiment, the utility model that is proposed can realize based on the driving in linear electric motors 10 moving process and drive stroke and drive the integrated driving sensing device of load from the perception ability.
Claims (5)
1. self-sensing drive unit, it is characterized in that, comprise: sleeve, take-off lever, guiding mechanism, thrust piezoelectric sensing body and retractable driving device, wherein: guiding mechanism is movably set in the sleeve, thrust piezoelectric sensing body is fixedlyed connected with retractable driving device, and the middle part of take-off lever is fixedly connected with guiding mechanism and terminally be connected with thrust piezoelectric sensing body or retractable driving device.
2. self-sensing drive unit according to claim 1, it is characterized in that, be provided with magnetostrictor and displacement piezoelectric sensing body in the described sleeve, wherein: organize magnetostrictor and displacement piezoelectric sensing body more and be connected in series in the sleeve and parallel with guiding mechanism, magnetostrictor contacts with take-off lever.
3. self-sensing drive unit according to claim 2 is characterized in that, is provided with the biasing permanent magnet between described magnetostrictor and the housing.
4. self-sensing drive unit according to claim 1 is characterized in that, is provided with permanent magnet between described take-off lever and the guiding mechanism.
5. a two-way self-sensing drive unit is characterized in that, is connected to form by two described self-sensing drive units of above-mentioned arbitrary claim, and its retractable driving device is linear electric motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512015U CN201966830U (en) | 2010-12-10 | 2010-12-10 | Self sensing driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206512015U CN201966830U (en) | 2010-12-10 | 2010-12-10 | Self sensing driving device |
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| CN201966830U true CN201966830U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206512015U Expired - Fee Related CN201966830U (en) | 2010-12-10 | 2010-12-10 | Self sensing driving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717223A (en) * | 2018-05-29 | 2018-10-30 | 上海交通大学 | It is tensioned platform and is tensioned platform combination device with Film Optics shape face |
| CN110243394A (en) * | 2019-07-19 | 2019-09-17 | 上海交通大学 | Resonant transducer based on intellectual material |
-
2010
- 2010-12-10 CN CN2010206512015U patent/CN201966830U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717223A (en) * | 2018-05-29 | 2018-10-30 | 上海交通大学 | It is tensioned platform and is tensioned platform combination device with Film Optics shape face |
| CN110243394A (en) * | 2019-07-19 | 2019-09-17 | 上海交通大学 | Resonant transducer based on intellectual material |
| CN110243394B (en) * | 2019-07-19 | 2024-02-27 | 上海交通大学 | Resonant sensor based on intelligent material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20161210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |