CN205490229U - Formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force - Google Patents
Formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force Download PDFInfo
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- CN205490229U CN205490229U CN201620045023.9U CN201620045023U CN205490229U CN 205490229 U CN205490229 U CN 205490229U CN 201620045023 U CN201620045023 U CN 201620045023U CN 205490229 U CN205490229 U CN 205490229U
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- frictional force
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Abstract
The utility model relates to a formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force is an electromagnetism immixture actuating mechanism. The driver is by base, bearing, axle, rotatable body, magnetism support, separation sleeve, pointer and bear the device and constitute. The axle is connected with the bearing of fixing on A circular base, and the pointer is installed at the top, and separation sleeve, magnetism support pass through the bolt to be connected with the main part piece, rotatable body and axle interference fit. When the bimorph for on the rotatable body applyed the symmetric signal, bimorph produced asymmetric inertial moment under asymmetric centre gripping, and this moment is passed through the symmetrical magnetic field force of the permanent magnet production on the magnetism support and is further strengthened, is bearing under the cooperation that becomes rubbing device, can realize the directional of rotatable body and rotate that separation sleeve wherein is used for protection driver structure. The utility model has the advantages of: the convenience is adjusted to frictional force, the mode is novel, drive circuit is simple, motion stationary, noiseless.
Description
Technical field
This utility model belongs to Precision Piezoelectric actuation techniques field, relates to a kind of bearing-type and becomes frictional force asymmetric magnetic pressure electrical inertia rotating driver.
Background technology
Micro-displacement driver has a wide range of applications in fields such as biological engineering, medical apparatus and instruments, Aero-Space and disaster relief equipment.The transmission conversion regimes such as tradition micro-displacement driver many employings gear, lever, precision lead screw or guide rail, transmission efficiency is low, and precision is the highest, and structure is complex, it is difficult to control.Accurate piezoelectric actuator have simple and compact for structure, resolution is high, without features such as electromagnetic interference, stroke are big, the most concerned.
The driving signal of piezoelectric inertia driver is frequently with the asymmetric signal of telecommunication at present, and its Circuits System is complex, is unfavorable for miniaturization.The piezoelectric inertia driver driven for using asymmetrical friction power to realize, owing to frictional force is nonlinear, calculates and models complexity, and be difficult to control.
For the problem existing for current piezoelectric inertia driver, the utility model proposes the change frictional force device utilizing bearing-type, the symmetrical signal of telecommunication drives piezoelectric bimorph, forms asymmetric moment of inertia by asymmetric clamping device and acts on further through permanent magnet magnetic field force, finally realizing the directed driven of driver, there is friction control convenient, drive circuit is simple, and precision is high, and output speed is high, stroke is high, drives the advantages such as stable.
Summary of the invention
The purpose of this utility model is to use complicated signal of telecommunication control system for current piezoelectric inertia driver, frictional force is difficult to the problems such as control, propose a kind of bearing-type and become frictional force asymmetric magnetic pressure electrical inertia rotating driver, utilize the immixture of magnetic field force and piezoelectric effect, and change frictional force as cooperation using bearing capacity, making frictional force adjust more convenient, the research and development for novel piezoelectric driver provide a kind of new approaches.
The technical scheme is that central shaft of this utility model 4 and the bearing 2 inner ring interference fit in base plate 1 geometric center, rotate main body and axle 4 interference fit, the overhanging end bolt 615 of piezoelectric bimorph 606 is fixed two identical irony gauge blocks 607 and is constituted driving arm, the holding piece 611 that other end two panels is identical is fixed on L-shaped grip block 614 by bolt 613, the cantilever end that permanent magnet 609 is fixed on magnetic support 603 by bolt 608 forms magnetic arm, and driving arm lateral symmetry to arrange, use separation sleeve 616 that arm will be driven to isolate with magnetic arm, and be respectively symmetrically 4 magnetic arms of layout, 2 drive arm by bolt 610, 604 collectively form rotation main body with main body block 601.Pallet 6 center is opened counterbore and is connected with axle 4 by screw 5, forms bogey, changes frictional force by changing the load capacity born.
It is to open counterbore in the geometric center of pallet 6 that described bearing-type becomes frictional force device, and be fixed on axle 4 with screw 5, a certain amount of load can be added on pallet, change the axial force that angular contact ball bearing 2 bears, thus changing the frictional force between axle 4 and bearing 2, it is achieved bearing-type becomes frictional force.
Magnetic arm is got up by described separation sleeve 616 with driving arm isolation, it is achieved in the case of not changing driving force size, does not make to lean near between driving arm and magnetic arm and make to have been attracted by magnetic arm, plays a protective role.
This utility model rotates permanent magnet 609 and irony gauge block 607 in main body and has identical physical dimension, permanent magnet 609 magnetic field force has sucking action to driving arm end mass block 607, existence due to separation sleeve, magnetic field force is unaffected, use holding piece 611 and L-type grip block 614 to be designed to adjustable clamping difference structure simultaneously, make driver that symmetrical driving pumping signal can be used to be driven.
It is complicated that this utility model overcomes signal of telecommunication control system, and frictional force is difficult to the shortcomings such as control, uses the symmetrical signal of telecommunication as driving signal, drive circuit is made to simplify, use the change frictional force device of bearing-type, make frictional force regulation more convenient, drive process more stable.The bearing-type that this utility model is proposed becomes frictional force asymmetric magnetic pressure electrical inertia rotating driver and belongs to mixed type driver, has the advantages such as low cost, stable, easy to control, frame for movement is easy to connect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is rotation agent structure schematic diagram of the present utility model；
Fig. 3 is the structural representation that this utility model bearing-type becomes frictional force device.
Detailed description of the invention
Further illustrate implementation below in conjunction with the accompanying drawings:
Such as Fig. 1, shown in Fig. 2, central shaft 4 and the angular contact ball bearing 2 inner ring interference fit in base plate 1 geometric center, rotate main body and axle 4 interference fit, bonding two the identical irony gauge blocks 607 of overhanging end of piezoelectric bimorph constitute driving arm, the holding piece 611 that other end two panels is identical is fixed on L-shaped grip block 614 by bolt 613, the cantilever end that permanent magnet 609 is fixed on magnetic support 603 by bolt 608 forms magnetic arm, and driving arm lateral symmetry to arrange, use separation sleeve 616 that arm will be driven to isolate with magnetic arm, and be respectively symmetrically 4 magnetic arms of layout, 2 drive arm by bolt 610, 604 collectively form rotation main body with main body block 601.Pallet 6 center is opened counterbore and is connected with axle 4 by screw 5, forms bogey, pre-loaded a certain amount of load, changes the frictional force of driver.
During assembling, described magnetic shield 616 and magnetic support 603 are fixed by bolt 610 and main body block 601 jointly, and the magnetic arm of both sides is all fixed by bolt 610.
As it is shown on figure 3, described pallet 6 geometric center opens counterbore, it is fixed on axle by screw 5, pallet is placed certain bearing capacity, change carrying weight, thus change the frictional force between axle 4 and bearing 2, finally realize the change frictional force of bearing-type.
During utility model works, apply Cycle-symmetry square wave excitation signal, drive arm under this signal owing to the existence of clamping difference produces asymmetrical driving force, the further effect by permanent magnet 609 magnetic field force of this power, and under bearing-type becomes the cooperation of frictional force device, make driving arm produce moment of inertia along axle 4 centerline direction poor, it is achieved rotate main body generation rotational angle displacement poor, driver is by directed movement, and pointer 3 is for measuring the movement travel of driver.
Claims (3)
- null1. a bearing-type becomes frictional force asymmetric magnetic pressure electrical inertia rotating driver，It is characterized in that，Central shaft (4) and angular contact ball bearing (2) the inner ring interference fit in base plate (1) geometric center，Rotate main body and axle (4) interference fit，The overhanging end bolt (615) of piezoelectric bimorph (606) is fixed two identical irony gauge blocks (607) and is constituted driving arm，The holding piece (611) that other end two panels is identical is fixed on L-shaped grip block (614) by bolt (613)，The cantilever end that permanent magnet (609) is fixed on magnetic support (603) by bolt (608) forms magnetic arm，And driving arm lateral symmetry to arrange，Use separation sleeve (616) that arm will be driven to isolate with magnetic arm，And be respectively symmetrically 4 magnetic arms of layout、2 drive arm by bolt (610、604) same to main body block (601) collectively forms rotation main body，Pallet (6) center is opened counterbore and is connected with axle (4) by screw (5)，Form bogey，Frictional force is changed by changing load capacity.
- Bearing-type the most according to claim 1 becomes frictional force asymmetric magnetic pressure electrical inertia rotating driver, it is characterized in that, described pallet (6) center is opened counterbore and uses that screw (5) and axle (4) are fixing to be connected, formation bogey.
- Bearing-type the most according to claim 1 becomes frictional force asymmetric magnetic pressure electrical inertia rotating driver, it is characterised in that separation sleeve (616) uses the bolt (610) identical with fixing magnetic arm to be fixed in main body block (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045023.9U CN205490229U (en) | 2016-01-07 | 2016-01-07 | Formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045023.9U CN205490229U (en) | 2016-01-07 | 2016-01-07 | Formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205490229U true CN205490229U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620045023.9U Expired - Fee Related CN205490229U (en) | 2016-01-07 | 2016-01-07 | Formula of bearing becomes asymmetric magnetic pressure electrical inertia rotary actuator of frictional force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205490229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078844A (en) * | 2021-04-21 | 2021-07-06 | 吉林大学 | Device and method for expanding inertia force to improve performance of piezoelectric actuator |
-
2016
- 2016-01-07 CN CN201620045023.9U patent/CN205490229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078844A (en) * | 2021-04-21 | 2021-07-06 | 吉林大学 | Device and method for expanding inertia force to improve performance of piezoelectric actuator |
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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: 20160817 Termination date: 20170107 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Kang Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice |