CN201365184Y - Long-stroke drive control device for precise displacement - Google Patents
Long-stroke drive control device for precise displacement Download PDFInfo
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- CN201365184Y CN201365184Y CNU2009200681271U CN200920068127U CN201365184Y CN 201365184 Y CN201365184 Y CN 201365184Y CN U2009200681271 U CNU2009200681271 U CN U2009200681271U CN 200920068127 U CN200920068127 U CN 200920068127U CN 201365184 Y CN201365184 Y CN 201365184Y
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Abstract
The utility model relates to a long-stroke drive control device for precise displacement in the electric motor technical field. The long-stroke drive control device comprises a displacement amplifying mechanism, an input displacement drive unit, an output displacement drive unit and a guide and support framework, wherein the input displacement drive unit and the output displacement drive unit are the magnetostriction mechanisms; one end of the input displacement drive unit is fixedly connected with the guide and support framework, and the other end thereof is fixedly connected with the displacement input end of the displacement amplifying mechanism; the displacement output end of the displacement amplifying mechanism is fixedly connected with one end of the output displacement drive unit; and the other end of the output displacement drive unit is fixedly connected with a driven object after passing the guide and support framework. The long-stroke drive control device has the advantages that the moving load capacity is big, the size of the driving displacement can be controlled, the driving displacement precision is high, and the driving process is easy to be controlled, and the device is suitable for the super-precision large-displacement drive control field.
Description
Technical field
The utility model relates to a kind of pose adjusting device of technical field of motors, specifically is a kind of big stroke precise displacement driving control device.
Background technology
The realization of the big displacement drive of magnetostriction type telescoping mechanism is the mode by inchworm motion, and by repeatedly magnetostriction excitation, the micron order magnetostrictive displacement that excitation is each time produced is accumulate to big displacement; The big displacement of existing techniques in realizing is to connect as one acting in conjunction by magnetostriction type telescoping mechanism and piezoelectric type telescoping mechanism.Have thus that the design link is many, complicated integral structure, control is loaded down with trivial details, mechanism efficiency is low and the defectives such as support that also need special smart material (as piezoelectricity, magnetostrictive material).Produced the smart material that can be used for precision driver, transducer and linear electric motors development novel in the last few years as giant magnetostriction material, piezoelectric ceramic and magnetostriction marmem etc., it is big that these materials have energy density, the power output height, advantages such as telescopic shape change is accurate, but the driving ubiquity telescopic displacement that is based on smart material is little, driving process of motivation complexity, defectives such as driving voltage or current requirements height; And often needing to increase extra loops such as bias magnetic field or electric field saves and improves the driving effect.Particularly She Ji mechanism need finish big stroke when flexible or mobile, often needs to increase complicated displacement amplifying mechanism or adopts multistep to move accumulation, realizes as the method for inchworm motion accumulation.Designed like this mechanism is generally complicated, and the drive controlling link is also more.Therefore, the flexible mechanism that is not suitable for developing requirement big telescopic shape change of generation or big travel displacement of smart material.
Find through retrieval prior art, Chinese patent application number is the patent of invention of " 200710047397.X ", a kind of permanent-magnet telescopic mechanism is provided, its readme is for " comprising: the center permanent magnet; the upper limit body; the lower limit body; magnetic actuation means; upper spring; lower spring, housing, upper end cover, bottom end cover, the top offset take-off lever, the bottom offset take-off lever, the center permanent magnet is between upper limit body and lower limit body, the center permanent magnet, the upper limit body, the lower limit body places enclosure interior, and be in the magnetic field of magnetic actuation means generation, the upper limit body links to each other with the top offset take-off lever, the lower limit body links to each other with the bottom offset take-off lever, upper spring is enclosed within on the top offset take-off lever, lower spring is enclosed within on the bottom offset take-off lever, the housing two ends are provided with upper end cover and bottom end cover, upper spring places between upper limit body and the upper end cover, and lower spring places between lower limit body and the bottom end cover." controlled amount of the telescopic displacement that this mechanism produced, telescopic displacement precision height.But be not applied to the pose adjustment of big displacement drive control as yet.
The utility model content
The utility model has proposed a kind of big stroke precise displacement driving control device at the deficiencies in the prior art.Make the utility model be applicable to big displacement drive control, the coupling of giant magnetostriction material actuator electrical magnetic mechanical is directly driven produce displacement, its drive displacement controlled amount, the driving process is controlled easily, can be applied to big stroke driving aspect.
The utility model is achieved by the following technical solution, the utility model comprises: displacement amplifying mechanism, input displacement driver, output displacement driver, guiding and support frame, described input displacement driver, output displacement driver are magnetostriction mechanism, wherein: the input displacement driver is connected in series and is connected by one or more drivers to be formed, the one end is connected mutually with guiding and support frame, and the other end and displacement amplifying mechanism front end (displacement input) are connected; The rear end of displacement amplifying mechanism (displacement output) is connected with an end of output displacement driver, the other end of this output displacement driver by guiding and support frame after and be driven object and be connected.
Described input displacement driver is an a kind of electromagnetic excitation giant magnetostrictive driver mechanism.
Described output displacement driver is a kind of electromagnetism, permanent magnetism complex incentive giant magnetostrictive driver mechanism.
Described enlarger is that enlarger is transmitted in a kind of hydraulic pressure or air pressure displacement.
The utility model adopts a displacement amplifying mechanism and is connected in series the magnetostrictive displacement driver respectively at displacement amplifying mechanism front end (displacement input) and rear end (displacement output), by controlling the precise displacement driving to the big stroke of amplification realization of displacement of displacement amplifying mechanism front and back ends driver telescopic displacement and enlarger, the pose that is driven object with realization is accurately adjusted.
Compared with prior art, the utility model has utilized the coupling of giant magnetostriction material actuator electrical magnetic mechanical directly to drive the characteristic that produces displacement, has the characteristics of thick smart displacement couple drive; The input displacement driver can be that more than one driver serial connection forms, the bigger displacement of convenient realization; The output displacement driver is a permanent magnet bias telescopic drive device, realizes linear magnetostriction easily, thereby can realize the displacement of superhigh precision; The displacement controlling unit is electric control, and control is sensitive, convenient big displacement and the compound drive controlling of precise displacement of realizing.
Description of drawings
Fig. 1 is that structure of the present utility model is formed schematic diagram;
Fig. 2 is the utility model input displacement driver schematic diagram;
Fig. 3 is that the utility model unit moves form input displacement driver schematic diagram;
Fig. 4 is the utility model enlarger schematic diagram.
Embodiment
Below in conjunction with accompanying drawing 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: input displacement driver 1, displacement amplifying mechanism 2, output displacement driver 3, support frame 4, support guide mechanism 5.Described input displacement driver 1, output displacement driver 3 are the magnetostrictive displacement driver.Input displacement driver 1 one or more displacement enter drive 1 serial connections form, the one end is connected mutually with support frame 4, the displacement input of the other end and displacement amplifying mechanism 2 is connected, the displacement output of displacement amplifying mechanism 2 is connected with an end of output displacement driver 3, the other end of output displacement driver 3 by support guide mechanism 5 back be driven object 6 and be connected.
As shown in Figure 2, in the present embodiment, described input displacement driver 1 comprises: center giant magnetostrictive driver body 7, last take-off lever parts 8, following take-off lever parts 9, solenoid 10, upper spring 11, lower spring 12, shell body 13, upper end cover 14, bottom end cover 15.Wherein, center giant magnetostrictive driver body 7 places electromagnetic excitation coil 10, and giant magnetostrictive driver body 7 two ends, center link to each other with following take-off lever parts 9 with last take-off lever parts 8 respectively; Center giant magnetostrictive driver body 7, solenoid 10 place shell body inside, and upper spring 11 is enclosed within on the output block 8, lower spring 12 is enclosed within down on the output block 9, shell body 13 two ends are provided with upper end cover 14 and bottom end cover 15, upper spring 11 places between take-off lever parts 8 and the upper end cover 14, and lower spring 12 places down between take-off lever parts 9 and the bottom end cover 15.For the version of enter drive 1 as shown in Figure 2, also can change the form of the non-output of symmetry up and down displacement into, promptly only allow bottom offset take-off lever 9 produce to bottom offset.Particularly, its form is for as shown in Figure 3, top offset take-off lever 8 becomes a rigid support platform 25, and remove upper spring 11, brace table 25 upper surfaces directly are connected with upper end cover 14 inner faces, brace table 25 lower surfaces are connected with giant magnetostrictive driver body 7 upper surfaces, center, like this when enter drive 1 is applied electromagnetic excitation, because enter drive upper end cover 14 is connected motionless with framework 4, with 7 elongations of center giant magnetostrictive driver body, can only produce and promptly enlarger 2 be produced the input displacement like this to bottom offset.
As shown in Figure 1, described output displacement driver 3, all structure and the building block with the input displacement driver is identical with building block for its structure, and difference is that output displacement driver 3 shell bodies are the composite shell bodies 16 that are made of magnet ring 23 and ferromagnet ring 24.
As shown in Figure 4, described displacement amplifying mechanism 2, comprise: heavy caliber chamber 17 (making) by the resilient bellows material of chamber wall body 18, small-bore chamber 19 (making) by the resilient bellows material of chamber wall body 20, and wall inelastic connection chamber 21 in chamber is formed; Connect chamber 21 between heavy caliber chamber 17 and small-bore chamber 19, and serial connection UNICOM, full of liquid or gas medium 22 in the chamber, and the strict sealing of whole chamber; In large and small chamber outside support guide mechanism 5 is arranged all.
One end of the affixed input displacement driver 1 in outer face of the heavy caliber chamber 17 of displacement amplifying mechanism 2; Affixed output displacement driver 3 one ends in the outer face of the small-bore chamber 19 of displacement amplifying mechanism 2, and, sliding support guiding mechanism 5 be provided with at the small-bore chamber 19 and output displacement driver 3 fixing positions of displacement amplifying mechanism 2.
The present embodiment course of work is specific as follows:
As Fig. 1, when support frame 4 maintains static, whole device is finished and promoted process following six state procedures in location to being driven object 6 to vertical top:
(a) solenoid in the displacement enter drive 1 10 is fed exciting current, 7 elongations of excitation center giant magnetostrictive driver body generate an electromagnetic field; Owing to the last take-off lever parts 8 and support frame 4 affixed maintaining static of displacement enter drive 1, giant magnetostrictive driver body 7 elongation displacements in center then are passed to the outer face of the heavy caliber chamber 17 of coupled displacement amplifying mechanism 2 through the following take-off lever parts 9 of displacement enter drive 1;
(b) outer face of the heavy caliber chamber 17 of displacement amplifying mechanism 2 is forced to, and liquid or gas medium 22 are passed in the small-bore chamber 19 through the connection chamber 21 of rigidity in the promotion chamber; Because liquid or gas medium 22 have Incoercibility in the annular seal space, employed in addition bellows 18 and 20 has the advantages that only axially be easy to generate distortion at it, heavy caliber chamber 17 is forced to compressed volume and will be transmitted in the small-bore chamber 19, this moment, small-bore chamber 19 showed as elongation owing to being subjected to hydraulic buckling, its elongation b is the product of heavy caliber chamber 17 shortening amount a and heavy caliber chamber 17 outer face area S and small-bore chamber 19 outer face area s ratios, be b=a * S/s, S/s is the multiplication factor of displacement amplifying mechanism 2;
(c) small-bore chamber 19 outer ends output displacement driver 3 integral body that promote to be connected with it move up, and then the object 6 that is driven that promotes to be connected with output displacement driver 3 other ends moves up, so far can realize by output displacement driver 1 through enlarger 2 produce to being driven the big displacement location driving of object 6;
(d) at this moment, solenoid in the output displacement driver 3 is fed exciting current, the center giant magnetostrictive driver body elongation in the excitation output displacement driver 3 that generates an electromagnetic field; Owing to being connected, the bottom offset take-off lever parts of displacement output driver 3 and small-bore chamber 19 outer ends maintain static, the center giant magnetostrictive driver body elongation of output in the displacement driver 3 will be passed to and export being driven on the object 6 that displacement driver 3 other ends are connected along the top offset take-off lever parts of displacement output driver 3, be driven object 6 thereby further drive; And, can be produced high precision displacement by accurate the driving so be driven object 6 owing to the displacement of exporting displacement driver 3 generations this moment is high accuracy elongation displacements without amplification that its inside center giant magnetostrictive driver body material directly produces;
(e) elongation owing to displacement enter drive 1 and displacement output driver 3 all can change by controlling the size of current of importing the solenoid in them, can at first carry out bigger displacement drive so be driven the position of object 6, then carry out the driving of less precise displacement by Current Control output displacement driver 3 elongations by Current Control input displacement driver 1 elongation; And because the permanent magnet bias effect of output displacement driver 3, current strength is adjusted in the driving of displacement driver 3 can be very little, but displacement adjustment precision can reach very high.
Claims (5)
1, a kind of big stroke precise displacement driving control device, it is characterized in that comprising displacement amplifying mechanism, the input displacement driver, the output displacement driver, guiding and support frame, described input displacement driver, the output displacement driver is magnetostriction mechanism, wherein: input displacement driver one end is connected mutually with guiding and support frame, the other end and displacement input are connected, the displacement output of displacement amplifying mechanism is connected with an end of output displacement driver, the other end of this output displacement driver by guiding and support frame after and be driven object and be connected.
2, big stroke precise displacement driving control device according to claim 1 is characterized in that, described input displacement driver is connected in series and is connected by one or more drivers to be formed.
3, big stroke precise displacement driving control device according to claim 1 and 2 is characterized in that, described input displacement driver is an a kind of electromagnetic excitation giant magnetostrictive driver mechanism.
4, big stroke precise displacement driving control device according to claim 1 is characterized in that, described output displacement driver is a kind of electromagnetism, permanent magnetism complex incentive giant magnetostrictive driver mechanism.
5, big stroke precise displacement driving control device according to claim 1 is characterized in that, described enlarger is that enlarger is transmitted in a kind of hydraulic pressure or air pressure displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200681271U CN201365184Y (en) | 2009-02-26 | 2009-02-26 | Long-stroke drive control device for precise displacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200681271U CN201365184Y (en) | 2009-02-26 | 2009-02-26 | Long-stroke drive control device for precise displacement |
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| CN201365184Y true CN201365184Y (en) | 2009-12-16 |
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| CNU2009200681271U Expired - Fee Related CN201365184Y (en) | 2009-02-26 | 2009-02-26 | Long-stroke drive control device for precise displacement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437777A (en) * | 2011-10-21 | 2012-05-02 | 上海交通大学 | External sensing device large displacement precision driving mechanism |
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2009
- 2009-02-26 CN CNU2009200681271U patent/CN201365184Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437777A (en) * | 2011-10-21 | 2012-05-02 | 上海交通大学 | External sensing device large displacement precision driving mechanism |
| CN102437777B (en) * | 2011-10-21 | 2014-04-16 | 上海交通大学 | External sensing device large displacement precision driving mechanism |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20091216 Termination date: 20110226 |