CN2572364Y - Wavelength scanning mechanism - Google Patents
Wavelength scanning mechanism Download PDFInfo
- Publication number
- CN2572364Y CN2572364Y CN 02275583 CN02275583U CN2572364Y CN 2572364 Y CN2572364 Y CN 2572364Y CN 02275583 CN02275583 CN 02275583 CN 02275583 U CN02275583 U CN 02275583U CN 2572364 Y CN2572364 Y CN 2572364Y
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- cam
- lever
- utility
- grating
- model
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Abstract
The utility model relates to a wavelength scanning mechanism in a light spectrum device. The utility model comprises a roller 1, a lever 2, a slide rod 3, a slid slot 4, a cam 5, a grating 6 and a tension spring 7, wherein, when the cam 5 is driven by a motor to rotate, the lever 2 drives the slide rod 3 to slide, the lever 2 moves along the track of the outer contour line of the cam 5, the lever 2 drives the grating 6 to move so that an angle between the grating 6 and an incident light is changed, and thus the scanning operation of wavelength is completed. The adoption of the slide rod and the slide slot solves the problem because the cam and the lever has no fixing measures, and when the device conducts wavelength scanning, the slide rod doesn't touch any position of the cam; when external vibrations and impact arise, the cam can not be damaged owing to the knock from the lever because of the limitation of the slide rod and the slide slot and the micro relative movement between the lever and the cam even through external vibrations; therefore, the utility model ensures the precision of the contour line of the cam and the measuring precision of the light spectrum device and provides one wavelength scanning mechanism which has anti-vibration measures and is suitable for special occasions. The utility model is suitable for the aerospace field and other special occasions.
Description
Technical field: the utility model relates to the spectral instrument technical field, especially relates to a kind of improvement to the cam-type Wavelength scanning mechanism.
Background technology: in many spectrometers, adopt cam and lever to comprise roller, lever, cam, grating, extension spring etc. as Wavelength scanning mechanism.Adopt grating or prism mechanism to be rigidly connected, the roller of the lever other end abuts against on the cam profile by spring tension, and motor rotates by cam, lever drives grating or prism and realizes length scanning.The outline line precision reflection accuracy of instrument of cam, the precision of the cam profile that when transport equipment, needs protection, thereby the measuring accuracy of assurance instrument.
When spectral instrument transports usually, generally lever is fixing away from cam with rope or employing physical construction.When the spectral instrument transportation finishes, before the spectral instrument energising work, rope must be unclamped or removes the physical construction of truck dead lever.Can not unclamp rope, can not remove the special occasions of truck dead lever physical construction for some, then can not guarantee the precision of cam profile, so can not guarantee the measuring accuracy of spectral instrument.
Detailed content of the present utility model: the purpose of this utility model is that solution background technology cam and lever do not have fixation, in transportation or moving process, cam and lever have relative motion, make lever beat cam, easily make cam face impaired, and can not guarantee the precision of cam profile, and therefore influencing the problems such as measuring accuracy of spectral instrument, the utility model will provide a kind of Wavelength scanning mechanism of vibrationproof for this reason.The utility model comprises roller, lever, slide bar, chute, cam, grating, extension spring, and the roller on the lever abuts against on the outline line of cam, is shaped on chute on the side of cam body, and slide bar places chute to be slidingly connected, and slide bar is fixed in the chute.The shape of chute is identical with the shape of cam.
During the utility model work, when external motor drove the cam rotation, the lever drives slide bar slided along chute, lever is along the orbiting motion of the outer contour of cam, the lever drives grating moves simultaneously, and the angle of grating and its incident light is changed, and then finishes the scanning work of wavelength.
The utility model has the advantages that and adopt slide bar and chute to solve the problem that background technology cam and lever do not have fixation to bring, when instrument carried out length scanning, slide bar did not bump any position of cam.As external vibration, when impacting, because restriction and the lever and the small relative motion of cam of slide bar and chute even extraneous vibration, impact are arranged, can not make cam impaired because of knocking of lever yet.Therefore the utility model has guaranteed the precision of cam profile, has also guaranteed the measuring accuracy of spectral instrument, and a kind of Wavelength scanning mechanism that vibration protection is suitable for the special occasions use that has also is provided.The utility model can be used for space flight and aviation technical field and occasion that some are special.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the A-A diagrammatic cross-section of Fig. 1
Embodiment is as depicted in figs. 1 and 2: the utility model comprises roller 1, lever 2, slide bar 3, chute 4, cam 5, grating 6, extension spring 7, and roller 1 adopts senior bearing.Lever 2 adopts the 4J32 metal material.Slide bar 3 is for cylindrical and adopt No. 45 steel to make.Chute 4 and cam 5 adopt the 9Cr18 material, and the width of chute 4 is slightly larger than the diameter of slide bar 3, and the groove width of desirable chute 4 adopts 5mm, and groove depth adopts 2mm, and the diameter of slide bar 3 adopts 4.5mm.Grating 6 adopts the holographic grating of 2400 line/mm.Extension spring 7 adopts spring steel wire to make.
Claims (2)
1, a kind of Wavelength scanning mechanism, comprise roller 1, lever 2, cam 5, grating 6, extension spring 7, it is characterized in that also including: slide bar 3 and chute 4 are shaped on chute 4 on the side of cam 5 bodies, slide bar 3 places chute 4 to be slidingly connected, and slide bar 3 is fixed on 4 li of chutes.
2, a kind of Wavelength scanning mechanism is characterized in that: the shape of chute 4 is identical with the shape of cam 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275583 CN2572364Y (en) | 2002-09-30 | 2002-09-30 | Wavelength scanning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275583 CN2572364Y (en) | 2002-09-30 | 2002-09-30 | Wavelength scanning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572364Y true CN2572364Y (en) | 2003-09-10 |
Family
ID=33739595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275583 Expired - Fee Related CN2572364Y (en) | 2002-09-30 | 2002-09-30 | Wavelength scanning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572364Y (en) |
-
2002
- 2002-09-30 CN CN 02275583 patent/CN2572364Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |