CN206696506U - Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system - Google Patents
Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system Download PDFInfo
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- CN206696506U CN206696506U CN201720303100.0U CN201720303100U CN206696506U CN 206696506 U CN206696506 U CN 206696506U CN 201720303100 U CN201720303100 U CN 201720303100U CN 206696506 U CN206696506 U CN 206696506U
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- China
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- filter wheel
- positioning system
- synchronous pulley
- automatically switching
- sheave
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Abstract
Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system, sheave system is passed through by dynamical system and drives filter wheel to work, it is characterised in that the type of drive between the dynamical system and filter wheel is：Dynamical system drives synchronous pulley I and synchronous pulley II to rotate by motor reducer；Transmitted between synchronous pulley I and synchronous pulley II using synchronous pulley power, form flexible dynamic transmission；Synchronous pulley II drives the rotation of sheave roller crank, and stirring the notch on filter wheel by sheave roller crank rotates sheave, completes the switching of filter wheel piece.The utility model high transmission accuracy, filter wheel convenient disassembly is quick, in the absence of destruction risk.Because filter wheel is in convenient disassembly, in the absence of any obstruction, coordinate the flexible locating ring with certain pretightning force using Geneva mechanism, stability of rotation and positioning precision is high.
Description
Technical field
It the utility model is related to a kind of mechanism for automatically switching.It is related to celestial spectrum instrument, Element detection, environment measuring and life
The technical fields such as thing medical science, more particularly to a kind of filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system, tool
Body further relates to a kind of applied to astronomical telescope spectrometer different-waveband optical filter automatic switchover rotating mechanism and constituent content inspection
Survey the filter wheel switching device of device.
Background technology
Astronomical telescope spectrometer obtains starlight light as astronomical telescope terminal device for carrying out processing to starlight
Spectrum, should be extremely wide in astronomical field.Spectrometer is to be used as photo-detector measurement spectral line different wave length position intensity by the use of CCD
Device.It is constructed by an entrance slit, a dispersion system, an imaging system and aberration correction system composition.With dispersion
Starlight is isolated required wavelength or wavelength region by element, and on selected wavelength（Or a certain wave band of scanning）It is imaged on
On CCD target surfaces, for follow-up data processing.
Monitoring for the light of different wave length, often using different optical filters, well matched 6 or a more multipoint optical filtering
Wheel automatically switches.Simultaneously in order to meet more needs, in actual use when increasing or changing optical filter, optical filter needs
Convenient dismounting.
In addition, in order to increase the optical filter life-span, plated film is wanted on optical filter surface, when optical filter uses long time skin covering of the surface
It can aoxidize, reduce efficiency.This also requires that optical filter can be dismantled conveniently, convenient when changing optical filter to dismantle.
Filter wheel mechanism uses usually as an entirety, needs to be designed to an entirety in the design.Filter wheel mechanism
Connected with spectrometer using positioning finger setting, ensure filter wheel positioning precision.
The content of the invention
In order to solve the problems, such as that easily failure and rotation precision be not high for filter wheel mechanism for automatically switching in the prior art, this reality
With a kind of filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system of new offer, sheave system is passed through by dynamical system
The dynamic filter wheel work of regiment commander, it is characterised in that the type of drive between the dynamical system and filter wheel is：Dynamical system passes through
Motor reducer drives synchronous pulley I and synchronous pulley II to rotate；Used between synchronous pulley I and synchronous pulley II
Synchronous pulley power transmits, and forms flexible dynamic transmission；Synchronous pulley II drives the rotation of sheave roller crank, by sheave roller
The notch that crank is stirred on filter wheel rotates sheave, completes the switching of filter wheel piece.
In prioritization scheme, accurate flexible positioning system in the mechanism for automatically switching, in the accurate flexible positioning system
Flexible press strip is fixed on alignment system seat；The flexible press strip upper end is provided with positioning rotor；On the positioning rotor and filter wheel
Notch engagement, the rotation of real sheave is accurately positioned.
Described filter wheel edge is respectively equipped with two kinds of slotted eyes, is respectively used to Geneva mechanism motion and filter wheel piece is accurately fixed
Position, each slotted eye are evenly distributed on filter wheel edge.
In other words, the utility model includes dynamical system, sheave system, high-accuracy flexible positioning system；Dynamical system bag
Motor reducer, timing belt and belt wheel are included, sheave system includes filter wheel and roller crank；High-accuracy flexible positioning system includes
Position rotor, positioning rotor supports seat, flexible press strip and alignment system seat.
Dynamical system：Fig. 3 is power system principle structure chart, and motor reducer drives synchronous pulley I rotations, by same
Step band drives synchronous pulley II rotations, that is, drives the rotation of sheave roller crank, and filter wheel is completed finally by sheave motion
Piece switches.
Geneva mechanism：Sheave roller crank handle turns filter wheel intermittently carries out indexing, can just cut per intermittent rotary once
Change a filter wheel piece.
Accurate flexibility is located through given suitable pretightning force and filter wheel locating slot and positioning rotor precision-fit is accurate
Position filter wheel piece position.Rotor is positioned in flexible positioning system and directly selects bearing, when ensureing filter wheel rotation, alignment system
Rolling friction is used with filter wheel, reduces frictional force, and pretightning force size is suitable.Geneva mechanism roller crank 7 and filter wheel 8 must
It is reasonable to design, and ensures filter wheel motion normally simultaneously, it is impossible to allow Geneva mechanism to move stuck situation.
High-accuracy flexible positioning system 12,13,14,15 is by giving suitable pretightning force and filter wheel locating slot and positioning
Rotor precision-fit is accurately positioned the position of filter wheel piece 9.Rotor 12 is positioned in flexible positioning system and directly selects bearing, ensures filter
When halo revolves 8 turns, alignment system and filter wheel use rolling friction, reduce frictional force, and pretightning force size is suitable.
The filter wheel mechanism structure high transmission accuracy of the present utility model, dynamic transfer system use flexible structure, filter
It is quick to take turns convenient disassembly, in the absence of destruction risk.
The overall structure of filter wheel mechanism for automatically switching connects use, filter wheel positioning precision with spectrometer by alignment pin
It is high.
According to design of the present utility model, because filter wheel is in convenient disassembly, in the absence of any obstruction, Geneva mechanism is used
Coordinate the flexible locating ring with certain pretightning force, stability of rotation and positioning precision height.
Compared with prior art, one of technique effect of the present utility model is：Super steady precise positioning structure.Traditional filter wheel
Switching mechanism is gear transmission structure, and gear structure has gap, can be acted on when optical filter works by extraneous load, and is caused
Shakiness, influence instrument service behaviour；Precise Position System can not only be accurately positioned optical filter position in the utility model, also may be used
Ensure that filter wheel position is stable.
The two of technique effect of the present utility model are：Flexible dynamic Transmission system.Flexible dynamic is designed in the utility model
Transmission system, reduce power source and filter wheel direct driving force is contacted, reduce impulsive force in filter wheel switching, have one to optical filter
Determine protective effect.
The three of technique effect of the present utility model are：Power insulation blocking structure.The utility model designs Geneva mechanism,
Geneva mechanism roller crank automatically disengages after the completion of filter wheel switching, power source is effectively isolated, to the security and work of optical filter
There is fine protective effect as state.
Brief description of the drawings
Fig. 1 is shown according to overall construction drawing of the present utility model（Front view）；
Fig. 2 is shown according to overall construction drawing of the present utility model（Isometric views）；
Fig. 3 is shown according to soft power system architecture stereogram of the present utility model；
Fig. 4 is shown according to flexible precision positioning mechanism stereogram of the present utility model.
Embodiment
Embodiment of the present utility model is provided below in conjunction with the accompanying drawings, to describe technical scheme in detail.
Embodiment 1, the filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system, Fig. 1 and Fig. 2 are that this practicality is new
The overall construction drawing of type, it is unit construction system scheme.Filter wheel mechanism for automatically switching is made up of three subsystems --- power
System, Geneva mechanism and Precise Position System.
Power system principle structure chart during Fig. 3, motor reducer 3 provide power source, drive synchronous pulley I 4 to rotate,
Drive synchronous pulley II 6 to rotate by timing belt 5, that is, the rotation of sheave roller crank is driven, finally by sheave motion
Complete the switching of filter wheel piece.
Decelerating through motor system 3 and synchronous pulley I 4 ensure that coaxially transmitting torque by square key makes synchronous pulley with subtracting
Fast arbor synchronous axial system.Equally, synchronous pulley II 6 and the coaxial synchronous of sheave roller crank 7 rotate.
Sheave roller crank rotates to be transmitted between motor reducer using synchronous pulley power, i.e., adds in power transmission
Add flexible dynamic to transmit, setup error or failure can be prevented to integrally-built destruction.
Filter wheel piece handoff procedure uses Geneva mechanism, the simple structure of sheave roller crank 7.And can more smoothly, interval
Ground carries out indexing, per intermittent rotary once, a just changeable filter wheel piece 8.Sheave roller crank 7 is rotated simultaneously to filtering
It is soft impulse to take turns piece 8, and automatically disengages filter wheel 8 after the completion of switching, and has preferable protective effect to optical filter.
Filter wheel 8 can have 6-8 groove to be used to place optical filter, and optical filter and standing groove gap coordinate（H11/C11）, put
It can be compressed after entering by screw clamp plate.Such as need to take out optical filter, first take out pressing plate, you can complete, therefore, dismounting is extremely square
Just.
Connected between filter wheel and the filter wheel support base using bearing, ensure that filter wheel motion is smooth
There are two kinds of slotted eyes at the edge of filter wheel 8 it can be seen from Fig. 1 and Fig. 2, is respectively used to Geneva mechanism motion and filter wheel
Piece positions, and each slotted eye Homogeneous Analysis is at the edge of filter wheel 8.
Filter wheel 8 is arranged among two filter wheel support bases 11, connects through a high-precision rotating shaft and two lean against
Back of the body installation bearing is realized.The structure ensures that filter wheel stability of rotation is smooth.
Fig. 4 is Precise Position System structure chart behind filter wheel piece in-position, and the part forms just like lower component：Positioning turns
Son 12；Position rotor supports seat 13；Flexible press strip 14；Alignment system seat 15.Positioning rotor directly selects bearing, in optical filtering round cut
It is pivoting friction to change between positioning rotor 12 and filter wheel 8, ensures there is less rub between filter wheel 8 and positioning rotor 12
Power is wiped, by locating slot and positioning rotor engagement, the position of filter wheel piece can be accurately positioned.
Positioning rotor installation is partial in Fig. 2 install below, and it is different with size to reduce sheave movement slots depth in filter wheel 8
To filter wheel piece location precision.
The priority position of alignment system seat 15 is adjusted to adjust the flexible crush of press strip 4, and then positioning rotor 12 can be adjusted
Pretightning force between filter wheel 8, ensure that positioning rotor motion is steady simultaneously, the effect of being accurately positioned can be reached by having.
Multiple dowel holes are installed in the bottom of base 1, and spectrometer installation site interface can be accurately located at by having, and having can essence
It is determined that position filter wheel support base, synchronous pulley system support base and alignment system support base interface, have been effectively ensured mechanical erection
Precision, while it is also convenient for filter wheel mechanical structure disassembly and installation.
Change filter wheel switching mechanism in addition to filter wheel piece, material surface whole blackening process, reduce veiling glare to spectrum
The performance impact of instrument or associated assay devices.
The utility model is not limited to above-mentioned implementation, and filter wheel piece needs not be circular, rectangle or hexagon etc. also can,
Quantity is also not necessarily limited to 8.Therefore, it is every to make simple deformation on the basis of the technical scheme of the utility model claims 1, all
It is intended in the utility model within protection domain.
Claims (8)
1. a kind of filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system, sheave system band is passed through by dynamical system
Dynamic filter wheel work, it is characterised in that the type of drive between the dynamical system and filter wheel is：Dynamical system passes through motor
Decelerator drives synchronous pulley I and synchronous pulley II to rotate；Using synchronous between synchronous pulley I and synchronous pulley II
Pulley power transmits, and forms flexible dynamic transmission；Synchronous pulley II drives the rotation of sheave roller crank, by sheave roller crank
The notch stirred on filter wheel rotates sheave, completes the switching of filter wheel piece.
2. the filter wheel mechanism for automatically switching according to claim 1 provided with high-accuracy flexible positioning system, its feature exist
In, it is provided with accurate flexible positioning system in the mechanism for automatically switching, it is solid on the alignment system seat in the accurate flexible positioning system
Fixed flexible press strip；The flexible press strip upper end is provided with positioning rotor；The positioning rotor engages with the notch on filter wheel, with reality
Existing sheave rotation is accurately positioned.
3. the filter wheel mechanism for automatically switching according to claim 1 provided with high-accuracy flexible positioning system, its feature exist
In the filter wheel edge is respectively equipped with two kinds of slotted eyes, is respectively used to Geneva mechanism motion and filter wheel piece is accurately positioned, each
Kind slotted eye is evenly distributed on filter wheel edge.
4. the filter wheel mechanism for automatically switching according to claim 2 provided with high-accuracy flexible positioning system, its feature exist
In the accurate flexible positioning system is by giving suitable pretightning force and filter wheel locating slot and positioning rotor precision-fit
It is accurately positioned filter wheel piece position.
5. the filter wheel mechanism for automatically switching according to claim 1 provided with high-accuracy flexible positioning system, its feature exist
In positioning rotor directly selects bearing in the flexible positioning system.
6. the filter wheel mechanism for automatically switching according to claim 1 provided with high-accuracy flexible positioning system, its feature exist
In the positioning rotor is mounted remotely from sheave tache motorice.
7. the filter wheel mechanism for automatically switching according to claim 1 provided with high-accuracy flexible positioning system, its feature exist
In using bearing connection between filter wheel and the filter wheel support base.
8. the filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system according to one of claim 1-7, its
It is characterised by, the filter wheel is arranged among two filter wheel support bases, connects through a high-precision rotating shaft and two back ofs the body
Backrest installation bearing is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720303100.0U CN206696506U (en) | 2017-03-27 | 2017-03-27 | Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720303100.0U CN206696506U (en) | 2017-03-27 | 2017-03-27 | Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206696506U true CN206696506U (en) | 2017-12-01 |
Family
ID=60442755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720303100.0U Expired - Fee Related CN206696506U (en) | 2017-03-27 | 2017-03-27 | Filter wheel mechanism for automatically switching provided with high-accuracy flexible positioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206696506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842478A (en) * | 2017-03-27 | 2017-06-13 | 中国科学院国家天文台南京天文光学技术研究所 | It is provided with the filter wheel mechanism for automatically switching of high-accuracy flexible positioning system |
| CN109605786A (en) * | 2018-10-23 | 2019-04-12 | 爱卓塑料(上海)有限公司 | A kind of how embedding film production process of INS film coated decorative |
-
2017
- 2017-03-27 CN CN201720303100.0U patent/CN206696506U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106842478A (en) * | 2017-03-27 | 2017-06-13 | 中国科学院国家天文台南京天文光学技术研究所 | It is provided with the filter wheel mechanism for automatically switching of high-accuracy flexible positioning system |
| CN106842478B (en) * | 2017-03-27 | 2023-04-28 | 中国科学院国家天文台南京天文光学技术研究所 | Automatic switching mechanism of filter wheel with high-precision flexible positioning system |
| CN109605786A (en) * | 2018-10-23 | 2019-04-12 | 爱卓塑料(上海)有限公司 | A kind of how embedding film production process of INS film coated decorative |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 Termination date: 20190327 |