CN110011563B - Clutch type giant magnetostrictive linear driving device - Google Patents
Clutch type giant magnetostrictive linear driving device Download PDFInfo
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- CN110011563B CN110011563B CN201910367656.XA CN201910367656A CN110011563B CN 110011563 B CN110011563 B CN 110011563B CN 201910367656 A CN201910367656 A CN 201910367656A CN 110011563 B CN110011563 B CN 110011563B
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- locking mechanism
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- wedge
- gmm rod
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 230000013011 mating Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/021—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors using intermittent driving, e.g. step motors, piezoleg motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
- H02N2/04—Constructional details
Abstract
The invention discloses a clutch type giant magnetostrictive linear driving device, and relates to the technical field of giant magnetostrictive driving devices. The driving device comprises a frame, a rotor, a front automatic locking mechanism, a rear automatic locking mechanism and a GMM rod, when the GMM rod stretches after a coil on the GMM rod is electrified, the rear automatic locking mechanism automatically locks, the rear end of the rotor is fixed on a guide rail, the front automatic locking mechanism automatically unlocks, and the GMM rod pushes the front section of the rotor to move forwards for a certain displacement; when the coil on the GMM rod is powered off and the GMM rod is contracted, the front automatic locking mechanism automatically locks, the front end of the mover is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, the rear end of the mover moves forwards for a certain displacement under the action of the flexible hinge between the front automatic locking mechanism and the rear automatic locking mechanism, the above actions are repeated continuously, the stepping linear motion of the mover is realized, the motion stability is high, and the output precision is high.
Description
Technical Field
The invention relates to the technical field of giant magnetostrictive driving devices, in particular to a clutch type giant magnetostrictive linear driving device.
Background
The giant magnetostrictive material (Giant Magnetostrictive Material, GMM for short) is an intelligent material with wider application and has the physical effects of magnetostriction, inverse magnetostriction, torsion, jump and the like. Compared with the piezoelectric material and the traditional magnetostrictive material, the giant magnetostrictive material has higher energy density and magneto-mechanical coupling coefficient, can realize larger magnetostrictive strain and output force at room temperature, has higher Curie temperature and compressive strength, and has more stable working performance. Therefore, the giant magnetostrictive material has wider application in the aspects of magnetic field detection, ultra-precise machining, vibration reduction, noise reduction, fluid device driving and the like. The clutch type giant magnetostrictive linear driving device in the prior art generally has no automatic locking function, and has low control precision and low output speed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a clutch type giant magnetostrictive linear driving device which can realize automatic locking and automatic unlocking of a rotor and has high output precision.
In order to solve the technical problems, the invention adopts the following technical scheme: a clutch type giant magnetostrictive linear driving device is characterized in that: the device comprises a frame, two opposite guide rails are arranged in the frame, a rotor is arranged on the guide rails, a front automatic locking mechanism is arranged at the front end of the rotor, a rear automatic locking mechanism is arranged at the rear end of the rotor, a GMM rod mounting hole is formed in the middle of the rotor, the front end of the GMM rod is in direct contact with the front side wall of the GMM rod mounting hole, the rear end of the GMM rod is in direct contact with the rear side wall of the GMM rod mounting hole through a pre-tightening mechanism, when the GMM rod stretches after a coil on the GMM rod is electrified, the rear automatic locking mechanism automatically locks the rear end of the rotor, the front automatic locking mechanism automatically unlocks, and the GMM rod pushes the front section of the rotor to move forwards for a certain displacement; when the coil on the GMM rod is powered off and the GMM rod is contracted, the front automatic locking mechanism automatically locks, the front end of the mover is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, and the rear end of the mover moves forwards for a certain displacement under the action of the flexible hinge between the front automatic locking mechanism and the rear automatic locking mechanism, so that the stepping linear motion of the mover is realized.
The further technical proposal is that: the left side and the right side of the front end of the rotor are respectively provided with a front locking mechanism mounting opening, each front locking mechanism mounting opening is internally provided with a front permanent magnet and a front self-locking block, the front permanent magnet is fixedly connected with the front side wall of the front locking mechanism mounting hole, the inner sides of the two front self-locking blocks are contacted with a front locking matching part on the rotor through mutually matched inclined planes, and the width of the front locking matching part gradually increases from left to right;
the left side and the right side of the rear end of the rotor are respectively provided with a rear locking mechanism mounting opening, a rear permanent magnet and a rear self-locking block are arranged in each rear locking mechanism mounting opening, the rear permanent magnet is fixedly connected with the front side wall of the rear locking mechanism mounting hole, the inner sides of the rear self-locking blocks are in contact with the rear locking matching parts on the rotor through mutually matched inclined planes, and the width of the rear locking matching parts gradually increases from left to right.
The further technical proposal is that: the front locking matching part and the rear locking matching part are connected through two flexible hinges capable of deforming, a space between the two flexible hinges forms the GMM rod mounting hole, and the flexible hinges stretch or shrink under the drive of the GMM rod.
The further technical proposal is that: the pre-tightening mechanism comprises a first wedge block, a second wedge block and an adjusting bolt, wherein the first wedge block and the second wedge block are positioned in a pre-tightening mechanism mounting hole, an inclined plane on the first wedge block is contacted with an inclined plane on the second wedge block, the length of the first wedge block is larger than that of the second wedge block, the rear end of the GMM rod is in direct contact with the plane on the front side of the first wedge block, a threaded hole is formed in the pre-tightening mechanism mounting hole, one end of the adjusting bolt enters the pre-tightening mechanism mounting hole after passing through the threaded hole and is contacted with the right plane of the second wedge block, and when the adjusting bolt moves towards the pre-tightening mechanism mounting hole, the adjusting bolt drives the second wedge block to move leftwards relative to the first wedge block, so that the first wedge block clamps the GMM rod into the GMM rod mounting hole.
The further technical proposal is that: the length of the first wedge block is equal to that of the pretension mechanism mounting hole, and the height of the first wedge block when being matched with the second wedge block is smaller than the depth of the pretension mechanism mounting hole, so that when the second wedge block moves relative to the first wedge block, the first wedge block can move relative to the GMM rods, and the clamping force between the GMM rods is changed.
The further technical proposal is that: four corners of the frame are provided with mounting holes.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: when the coil on the GMM rod is electrified and then the GMM rod stretches in the driving device, the inclined surface on the front locking matching part of the rotor leaves the front self-locking block under the action of the GMM rod extending forwards, the front automatic locking mechanism automatically unlocks, the GMM rod pushes the front section of the rotor to move forwards for a certain displacement, meanwhile, the inclined surface on the rear locking matching part of the rotor compresses the rear self-locking block on the frame, and friction force generated by the frame on the rear self-locking block prevents the rear self-locking block and the rotor from moving backwards, and the rear automatic locking mechanism automatically locks; when the coil on the GMM rod is powered off and then the GMM rod is contracted, the front automatic locking mechanism automatically locks, the front end of the mover is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, and the rear end of the mover moves forwards for a certain displacement under the action of the flexible hinge. The above actions are repeated continuously, and the stepping linear motion of the mover is realized. In sum, the driving device can realize automatic locking and automatic unlocking of the rotor, and has strong motion stability and high output precision.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of a driving device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the drive device according to an embodiment of the present invention with a frame removed;
wherein: 1. a frame; 2. a guide rail; 3. a mover; 4. a GMM rod; 5. a flexible hinge; 6. a front permanent magnet; 7. a front self-locking block; 8. a front locking mating part; 9. a rear permanent magnet; 10. a rear self-locking block; 11. a rear locking mating portion; 12. a first wedge block; 13. a second wedge block; 14. an adjusting bolt; 15. a pretension mechanism mounting hole; 16. and (5) mounting holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1-2, the embodiment of the invention discloses a clutch type giant magnetostrictive linear driving device, which comprises a frame 1, wherein the whole frame 1 is of a rectangular structure; two opposite parallel guide rails 2 are arranged in the frame 1. The guide rail 2 is provided with a mover 3, and the mover can move linearly along the guide rail. The front end of the rotor 3 is provided with a front automatic locking mechanism, the rear end of the rotor 3 is provided with a rear automatic locking mechanism, the middle part of the rotor is provided with a GMM rod mounting hole, the front end of the GMM rod 4 is in direct contact with the front side wall of the GMM rod mounting hole, and the rear end of the GMM rod 4 is in direct contact with the rear side wall of the GMM rod mounting hole through a pre-tightening mechanism. When the coil on the GMM rod 4 is electrified and then the GMM rod is stretched, the rear automatic locking mechanism is automatically locked, the rear end of the rotor is fixed on the guide rail 2, the front automatic locking mechanism is automatically unlocked, and the GMM rod 4 pushes the front section of the rotor to move forwards for a certain displacement (the size of the displacement can be set according to the form of the coil in the GMM rod and the size of electrified current); when the coil on the GMM rod is powered off and the GMM rod 4 is contracted, the front automatic locking mechanism automatically locks, the front end of the mover is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, and the rear end of the mover moves forwards for a certain displacement under the action of the flexible hinge 5 between the front automatic locking mechanism and the rear automatic locking mechanism, so that the stepping linear motion of the mover is realized. The flexible hinge comprises a plurality of flexible hinge units connected end to end, so that the stress of the flexible hinge can be effectively reduced, and the stress condition is improved.
Further, as shown in fig. 1-2, a front locking mechanism mounting opening is respectively arranged on the left side and the right side of the front end of the rotor, a front permanent magnet 6 and a front self-locking block 7 are arranged in each front locking mechanism mounting opening, the front permanent magnet 6 is fixedly connected with the front side wall of the front locking mechanism mounting opening, the inner sides of the two front self-locking blocks 7 are contacted with a front locking matching part 8 on the rotor through mutually matched inclined planes, and the width of the front locking matching part 8 gradually increases from left to right;
the rear end left and right sides of active cell respectively is provided with a back locking mechanism installation mouth, is provided with a back permanent magnet 9 and a back auto-lock piece 10 in every back locking mechanism installation mouth, back permanent magnet 9 with the preceding lateral wall fixed connection of back locking mechanism mounting hole, two the inboard of back auto-lock piece 10 contacts through the inclined plane of mutually supporting with the active cell upper back locking mating portion 11, just back locking mating portion 11 increases gradually from left to right's width.
Through the attraction effect of the front permanent magnet 6 on the front self-locking block 7, the front self-locking block 7 and the front locking matching part 8 can be ensured to be always in contact when the front locking mechanism is automatically unlocked; through the attraction effect of the rear permanent magnet 9 on the rear self-locking block 10, the rear self-locking block 10 and the front locking matching part 11 can be ensured to be always in contact when the rear locking mechanism is automatically unlocked.
Further, as shown in fig. 1-2, the front locking matching portion 8 and the rear locking matching portion 11 are connected through two flexible hinges 5 capable of being deformed, the space between the two flexible hinges 5 forms the GMM rod mounting hole, and the flexible hinges 5 are driven by the GMM rod 4 to extend or retract to an original state.
Further, as shown in fig. 1-2, the pretensioning mechanism includes a first wedge block 12, a second wedge block 13, and an adjusting bolt 14. The first wedge block 12 and the second wedge block 13 are positioned in the pretension mechanism mounting hole 15, the inclined plane on the first wedge block 12 is contacted with the inclined plane on the second wedge block 13, the length of the first wedge block 12 is larger than that of the second wedge block 13, and the rear end of the GMM rod 4 is directly contacted with the plane on the front side of the first wedge block 12. The pre-tightening mechanism mounting hole 15 is provided with a threaded hole, one end of the adjusting bolt 14 enters the pre-tightening mechanism mounting hole 15 after passing through the threaded hole and contacts with the right plane of the second wedge block 13, and when the adjusting bolt 14 moves into the pre-tightening mechanism mounting hole 15, the adjusting bolt 14 drives the second wedge block 13 to move leftwards relative to the first wedge block 12, so that the first wedge block 12 clamps the GMM rod 4 into the GMM rod mounting hole.
Further, as shown in fig. 1-2, the length of the first wedge block 12 is equal to the length of the pretensioning mechanism mounting hole 15, and the height of the first wedge block 12 when mated with the second wedge block 13 is smaller than the depth of the pretensioning mechanism mounting hole 15, so that when the second wedge block 13 moves relative to the first wedge block 12, the first wedge block 12 can move relative to the GMM rod 4, changing the clamping force between the GMM rods 4.
Further, as shown in fig. 1, mounting holes 16 are provided at four corners of the frame 1, and the device can be conveniently fixed with other devices by matching the mounting holes with corresponding bolts.
When the coil on the GMM rod is electrified and then the GMM rod stretches in the driving device, the inclined surface on the front locking matching part of the rotor leaves the front self-locking block under the action of the GMM rod extending forwards, the front automatic locking mechanism automatically unlocks, the GMM rod pushes the front section of the rotor to move forwards for a certain displacement, meanwhile, the inclined surface on the rear locking matching part of the rotor compresses the rear self-locking block on the frame, and friction force generated by the frame on the rear self-locking block prevents the rear self-locking block and the rotor from moving backwards, and the rear automatic locking mechanism automatically locks; when the coil on the GMM rod is powered off and then the GMM rod is contracted, the front automatic locking mechanism automatically locks, the front end of the mover is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, and the rear end of the mover moves forwards for a certain displacement under the action of the flexible hinge. The above actions are repeated continuously, and the stepping linear motion of the mover is realized. In sum, the driving device can realize automatic locking and automatic unlocking of the rotor, and has strong motion stability and high output precision.
Claims (5)
1. A clutch type giant magnetostrictive linear driving device is characterized in that: comprises a frame (1), two opposite guide rails (2) are arranged in the frame (1), a rotor (3) is arranged on the guide rails (2), a front automatic locking mechanism is arranged at the front end of the rotor (3), a rear automatic locking mechanism is arranged at the rear end of the rotor (3), a GMM rod mounting hole is arranged in the middle of the rotor, the front end of a GMM rod (4) is in direct contact with the front side wall of the GMM rod mounting hole, the rear end of the GMM rod (4) is in direct contact with the rear side wall of the GMM rod mounting hole through a pre-tightening mechanism,
the left side and the right side of the front end of the rotor are respectively provided with a front locking mechanism mounting opening, each front locking mechanism mounting opening is internally provided with a front permanent magnet (6) and a front self-locking block (7), the front permanent magnet (6) is fixedly connected with the front side wall of the front locking mechanism mounting opening, the inner sides of the two front self-locking blocks (7) are contacted with a front locking matching part (8) on the rotor through mutually matched inclined planes, and the width of the front locking matching part (8) gradually increases from left to right along the advancing direction;
the left side and the right side of the rear end of the rotor are respectively provided with a rear locking mechanism mounting opening, each rear locking mechanism mounting opening is internally provided with a rear permanent magnet (9) and a rear self-locking block (10), the rear permanent magnet (9) is fixedly connected with the front side wall of the rear locking mechanism mounting opening, the inner sides of the two rear self-locking blocks (10) are contacted with a rear locking matching part (11) on the rotor through mutually matched inclined planes, and the width of the rear locking matching part (11) gradually increases from left to right along the advancing direction;
the front locking matching part (8) and the rear locking matching part (11) are connected through two flexible hinges (5) which can deform, the space between the two flexible hinges (5) forms the GMM rod mounting hole, and the flexible hinges (5) stretch or shrink under the drive of the GMM rod (4);
when the coil on the GMM rod (4) is electrified and then the GMM rod (4) stretches, the rear self-locking block (10) is pressed onto the frame (1) through the inclined surface on the rear locking matching part (11) of the rotor, the friction force generated by the frame (1) on the rear self-locking block (10) prevents the rear self-locking block (10) and the rotor (3) from moving backwards, the rear automatic locking mechanism automatically locks, the rear end of the rotor is fixed on the guide rail (2), the front automatic locking mechanism automatically unlocks, the GMM rod (4) pushes the front section of the rotor to move forwards for a certain displacement, and the attraction effect of the front permanent magnet (6) on the front self-locking block (7) can ensure that the front self-locking block (7) and the front locking matching part (8) always keep contact when the front locking mechanism is automatically unlocked; when the coil on the GMM rod (4) is powered off and the GMM rod (4) is contracted, the front automatic locking mechanism automatically locks, the front end of the rotor is fixed on the guide rail, the rear automatic locking mechanism automatically unlocks, the rear end of the rotor (3) moves forwards for a certain displacement under the action of a flexible hinge (5) between the front automatic locking mechanism and the rear automatic locking mechanism, the attraction of the rear permanent magnet (9) to the rear self-locking piece (10) can ensure that the rear self-locking piece (10) and the rear locking matching part (11) always keep contact when the rear locking mechanism automatically unlocks, and the actions are repeated continuously, so that the stepping linear motion of the rotor (3) is realized.
2. The clutch-type giant magnetostrictive linear driving device according to claim 1, wherein: the utility model provides a clamping device, including pretension mechanism, including first wedge (12), second wedge (13) and adjusting bolt (14), first wedge (12) are located pretension mechanism mounting hole (15) with second wedge (13), just inclined plane on first wedge (12) contacts with the inclined plane on second wedge (13), the length of first wedge (12) is greater than the length of second wedge (13), the rear end of GMM stick (4) with the plane direct contact of first wedge (12) front side, be provided with the screw hole on pretension mechanism mounting hole (15), the one end of adjusting bolt (14) is through behind the screw hole get into in pretension mechanism mounting hole (15), and with the right side plane contact of second wedge (13), when adjusting bolt (14) to pretension mechanism mounting hole (15) internal motion, adjusting bolt (14) drive second wedge (12) with first wedge (12) are moved to left side GMM stick (12) with the first wedge (12) is installed in with the clamping device.
3. The clutch-type giant magnetostrictive linear driving device according to claim 2, wherein: the length of the first wedge block (12) is equal to the length of the pretension mechanism mounting hole (15), and the height of the first wedge block (12) when being matched with the second wedge block (13) is smaller than the depth of the pretension mechanism mounting hole (15), so that when the second wedge block (13) moves relative to the first wedge block (12), the first wedge block (12) can move relative to the GMM rod (4) to change the clamping force between the GMM rods (4).
4. The clutch-type giant magnetostrictive linear driving device according to claim 1, wherein: four corners of the frame (1) are provided with mounting holes (16).
5. The clutch-type giant magnetostrictive linear driving device according to claim 1, wherein: the flexible hinge comprises a plurality of flexible hinge units connected end to end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367656.XA CN110011563B (en) | 2019-05-05 | 2019-05-05 | Clutch type giant magnetostrictive linear driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367656.XA CN110011563B (en) | 2019-05-05 | 2019-05-05 | Clutch type giant magnetostrictive linear driving device |
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| CN110011563A CN110011563A (en) | 2019-07-12 |
| CN110011563B true CN110011563B (en) | 2024-02-13 |
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| CN201910367656.XA Active CN110011563B (en) | 2019-05-05 | 2019-05-05 | Clutch type giant magnetostrictive linear driving device |
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Families Citing this family (1)
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| CN111301950A (en) * | 2020-03-25 | 2020-06-19 | 江苏锡沂钢模有限公司 | Guide clamping and material guiding device for heavy type sleeper made of microcrystalline material |
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| JPH06317403A (en) * | 1992-07-31 | 1994-11-15 | Kanagawa Kagaku Gijutsu Akad | Actuator for roughly positioning probe of tunneling microscope |
| CN101145742A (en) * | 2007-10-19 | 2008-03-19 | 北京工业大学 | A dual-phase set ultra-magnetism flexible driver and its implementation method |
| CN103780142A (en) * | 2014-01-22 | 2014-05-07 | 吉林大学 | Large-load high-accuracy inchworm type piezoelectric linear actuator based on wedge clamping |
| CN104868780A (en) * | 2015-06-03 | 2015-08-26 | 西安交通大学 | Double-piezoelectric-stack drive stepping actuator employing wedge-shaped locking mechanism, and actuation method |
| CN109067238A (en) * | 2018-08-02 | 2018-12-21 | 哈尔滨工程大学 | A kind of patch type four-footed piezoelectric actuation mechanism |
| CN109361327A (en) * | 2018-11-08 | 2019-02-19 | 中国人民解放军陆军工程大学 | The super mangneto rotation drive device of clutch type |
-
2019
- 2019-05-05 CN CN201910367656.XA patent/CN110011563B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06317403A (en) * | 1992-07-31 | 1994-11-15 | Kanagawa Kagaku Gijutsu Akad | Actuator for roughly positioning probe of tunneling microscope |
| CN101145742A (en) * | 2007-10-19 | 2008-03-19 | 北京工业大学 | A dual-phase set ultra-magnetism flexible driver and its implementation method |
| CN103780142A (en) * | 2014-01-22 | 2014-05-07 | 吉林大学 | Large-load high-accuracy inchworm type piezoelectric linear actuator based on wedge clamping |
| CN104868780A (en) * | 2015-06-03 | 2015-08-26 | 西安交通大学 | Double-piezoelectric-stack drive stepping actuator employing wedge-shaped locking mechanism, and actuation method |
| CN109067238A (en) * | 2018-08-02 | 2018-12-21 | 哈尔滨工程大学 | A kind of patch type four-footed piezoelectric actuation mechanism |
| CN109361327A (en) * | 2018-11-08 | 2019-02-19 | 中国人民解放军陆军工程大学 | The super mangneto rotation drive device of clutch type |
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