CN212781441U

CN212781441U - Grating corner adjusting device for Raman spectrometer

Info

Publication number: CN212781441U
Application number: CN202021017286.1U
Authority: CN
Inventors: 张景辉
Original assignee: Yantai University
Current assignee: Yantai University
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-03-23
Anticipated expiration: 2030-06-05

Abstract

The utility model discloses a grating rotation angle adjustment device for a Raman spectrometer, which comprises a device casing and a grating mounted on the device casing. A cavity is opened in the device casing, and a rotation angle adjustment mechanism is installed in the cavity. , the rotation angle adjustment mechanism includes a driving wheel, a rotating block rotatably installed in the cavity, and a clamping mechanism installed in the rotating block, the driving wheel is rotated and installed in the cavity through a rotating shaft, and the rotating shaft is fixedly installed with The rotation angle adjustment switch, a driven wheel is fixedly installed on the rotating block, the driving wheel and the driven wheel are meshed, the diameter of the driving wheel is smaller than the diameter of the driven wheel, and a sine arm is also installed on the device casing. The new type rotates the rotation angle adjustment switch fixedly connected with the driving wheel, so that the rotating block fixedly connected with the driven wheel rotates, where the diameter of the driving wheel is smaller than that of the driven wheel, so that the fine adjustment of the grating can be realized.

Description

Grating corner adjusting device for Raman spectrometer

Technical Field

The utility model relates to a physical instrument technical field specifically is a grating corner adjusting device for raman spectroscopy appearance.

Background

At present, the production technology of the Raman spectrometer is quite mature, the production process of the Raman spectrometer mainly comprises two parts of assembling and debugging, wherein the debugging part mainly aims at debugging index parameters of a monochromator, and the existing technology has certain defects in the adjustment of an included angle between a grating and a sine arm in the monochromator.

In the prior art, the grating angle can only be roughly adjusted, and then a software control stepping motor is needed to complete the supplementary correction of the grating angle, so that the working difficulty of a software writer is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grating corner adjusting device for raman spectroscopy to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a grating corner adjusting device for Raman spectroscopy, includes the device casing and installs the grating on the device casing, the cavity has been seted up in the device casing, install corner adjustment mechanism in the cavity, corner adjustment mechanism includes the action wheel, rotates the turning block of installing in the cavity and installs the clamping mechanism in the turning block, the action wheel rotates through the pivot and installs in the cavity, fixed mounting has corner regulating switch in the pivot, fixed mounting has from the driving wheel on the turning block, the action wheel meshes with following the driving wheel, the diameter of action wheel is less than the diameter from the driving wheel, the grating passes through clamping mechanism and installs on corner adjustment mechanism, still install sinusoidal arm on the device casing.

As a further aspect of the present invention: clamping mechanism includes spacing groove, stopper and slide, the stopper passes through the bull stick articulated connection on the turning block, be provided with on the turning block and be used for stopper pivoted movable groove, through a spring swing joint between the lateral wall in movable groove and the lateral wall of stopper, slide slidable mounting is in seting up in the No. two spouts of turning block, No. two spring swing joints are passed through to the bottom of slide and the inner chamber bottom of No. two spouts, still set up the mounting groove with No. two spout intercommunications on the turning block, fixed connection is seted up on the spliced pole of grating in the spacing groove.

As a further aspect of the present invention: the sinusoidal arm passes through position control mechanism and installs on the device casing, position control mechanism includes lead screw and slider, and two slider slidable mounting are in seting up the spout of device casing, still rotate in the spout and install the lead screw, the lead screw runs through the slider and connects the slider through screw-thread fit, fixed mounting has position control switch on the lead screw, still fixedly connected with screw rod on the slider, be provided with on the screw rod rather than supporting nut, still fixed mounting has the backup pad on the screw rod.

As a further aspect of the present invention: two sliding blocks are installed in the first sliding groove.

As a further aspect of the present invention: the upper surface of the sliding plate is provided with an anti-slip layer.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses pass through clamping mechanism fixed mounting with the grating on the turning block, through rotating with action wheel fixed connection's corner regulating switch for with rotate from the fixed turning block who links to each other of driving wheel, thereby make the grating rotate, the diameter of here action wheel is less than the diameter from the driving wheel, thereby reduces the action wheel and from the drive ratio between the driving wheel, thereby can realize the slight regulation to the grating.

Drawings

Fig. 1 is a schematic structural diagram of a grating rotation angle adjusting device for a raman spectrometer.

Fig. 2 is a schematic structural diagram of a in fig. 1.

Fig. 3 is a three-dimensional diagram of a grating rotation angle adjusting device for a raman spectrometer.

In the figure: 1. a device housing; 2. a sine arm; 3. a grating; 4. a cavity; 5. a driving wheel; 6. a driven wheel; 7. a corner adjusting switch; 8. a limiting groove; 9. connecting columns; 10. a position adjusting switch; 11. a first chute; 12. a lead screw; 13. Mounting grooves; 14. a slider; 15. a screw; 16. a support plate; 17. a nut; 18. rotating the block; 19. a rotating rod; 20. a movable groove; 21. a first spring; 22. a slide plate; 23. a second chute; 24. a second spring; 25. a limiting block; 26. a rotating shaft; 27. and an anti-slip layer.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-3, the present embodiment provides a grating angle adjusting device for a raman spectrometer, which includes a device housing 1 and a grating 3 mounted on the device housing 1, a cavity 4 is arranged in the device shell 1, a corner adjusting mechanism is arranged in the cavity 4, the corner adjusting mechanism comprises a driving wheel 5, a rotating block 18 rotatably arranged in the cavity 4 and a clamping mechanism arranged in the rotating block 18, the driving wheel 5 is rotatably arranged in the cavity 4 through a rotating shaft 26, a corner adjusting switch 7 is fixedly arranged on the rotating shaft 26, a driven wheel 6 is fixedly arranged on the rotating block 18, the driving wheel 5 is meshed with the driven wheel 6, the diameter of the driving wheel 5 is smaller than that of the driven wheel 6, the grating 3 is installed on the corner adjusting mechanism through the clamping mechanism, and the sine arm 2 is further installed on the device shell 1.

The working principle is as follows: rotate corner regulating switch 7, drive action wheel 5 and rotate, action wheel 5 rotates and drives and rotate from driving wheel 6, it rotates and drives turning block 18 to rotate from driving wheel 6, thereby it rotates to drive the grating 3 of installing on turning block 18, here the diameter of action wheel 5 need be less than the diameter from driving wheel 6, so set up, just can reduce action wheel 5 and follow the transport ratio between driving wheel 6, when making corner regulating switch 7 rotate very big angle, grating 3 only rotates very little angle, thereby realized grating 3 for the fine adjustment of sinusoidal arm 2 installation contained angle.

Clamping mechanism includes spacing groove 8, stopper 25 and slide 22, stopper 25 connects on turning block 18 through bull stick 19 is articulated, be provided with on the turning block 18 and be used for stopper 25 pivoted activity groove 20, through a spring 21 swing joint between the lateral wall of activity groove 20 and the lateral wall of stopper 25, slide 22 slidable mounting is in No. two spout 23 of offering in turning block 18, No. two springs 24 swing joints are passed through to the bottom of slide 22 and the inner chamber bottom of No. two spout 23, still offer the mounting groove 13 with No. two spout 23 intercommunications on the turning block 18, fixed connection is seted up on spliced pole 9 of grating 3 in spacing groove 8.

The working principle of the clamping mechanism is as follows: insert the spliced pole 9 on the grating 3 in mounting groove 13, stopper 25 gets into movable groove 20 under the extrusion of spliced pole 9 this moment, slide 22 downstream under the extrusion of spliced pole 9, thereby make No. two spring 24 compressed, when spliced pole 9 injects the mounting groove 13 completely, stopper 25 can get into the spacing inslot 8 under the effort of a spring 21, then loosen grating 3, slide 22 can be at the upward movement under No. two spring 24's effort this moment, thereby clip spliced pole 9.

Sinusoidal arm 2 passes through position control mechanism and installs on device casing 1, position control mechanism includes lead screw 12 and slider 14, and two slider 14 slidable mounting are in seting up in device casing 1's a spout 11, still rotate in the spout 11 and install lead screw 12, lead screw 12 runs through slider 14 and connects slider 14 through screw-thread fit, fixed mounting has position control switch 10 on the lead screw 12, go back fixedly connected with screw rod 15 on the slider 14, be provided with on the screw rod 15 rather than supporting nut 17, it has backup pad 16 to go back fixed mounting on the screw rod 15.

The working principle of the position adjusting mechanism is as follows: the installation hole of the sine arm 2 is sleeved on the screw rod 15, then the nut 17 is screwed to fix the sine arm 2, then the position adjusting switch 10 is rotated to drive the screw rod 12 to rotate, the screw rod 12 rotates to drive the sliding block 14 to move on the screw rod 12, and therefore the position of the grating 3 on the sine arm 2 is adjusted.

Two sliders 14 are installed in the first sliding groove 11, and the sine arm 2 can be positioned through the arrangement.

Example 2

In order to increase the stability of the grating 3 after installation, the present embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: the upper surface of the sliding plate 22 is provided with an anti-slip layer, so that the stability of the grating 3 can be improved.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A grating corner adjusting device for a Raman spectrometer comprises a device shell (1) and a grating (3) installed on the device shell (1), and is characterized in that a cavity (4) is formed in the device shell (1), a corner adjusting mechanism is installed in the cavity (4), the corner adjusting mechanism comprises a driving wheel (5), a rotating block (18) rotatably installed in the cavity (4) and a clamping mechanism installed in the rotating block (18), the driving wheel (5) is rotatably installed in the cavity (4) through a rotating shaft (26), a corner adjusting switch (7) is fixedly installed on the rotating shaft (26), a driven wheel (6) is fixedly installed on the rotating block (18), the driving wheel (5) is meshed with the driven wheel (6), the diameter of the driving wheel (5) is smaller than that of the driven wheel (6), and the grating (3) is installed on the corner adjusting mechanism through the clamping mechanism, the device shell (1) is also provided with a sine arm (2).

2. The grating angle adjusting device for the Raman spectrometer according to claim 1, wherein the clamping mechanism comprises a limiting groove (8), a limiting block (25) and a sliding plate (22), the limiting block (25) is hinged to a rotating block (18) through a rotating rod (19), a movable groove (20) for the limiting block (25) to rotate is arranged on the rotating block (18), the side wall of the movable groove (20) is movably connected with the side wall of the limiting block (25) through a first spring (21), the sliding plate (22) is slidably mounted in a second sliding groove (23) formed in the rotating block (18), the bottom of the sliding plate (22) is movably connected with the bottom of an inner cavity of the second sliding groove (23) through a second spring (24), and a mounting groove (13) communicated with the second sliding groove (23) is further formed in the rotating block (18), the limiting groove (8) is formed in a connecting column (9) fixedly connected to the grating (3).

3. The grating angle adjusting device for the Raman spectrometer, according to claim 1, wherein the sine arm (2) is mounted on the device housing (1) through a position adjusting mechanism, the position adjusting mechanism comprises a lead screw (12) and sliders (14), the two sliders (14) are slidably mounted in a first sliding groove (11) formed in the device housing (1), the lead screw (12) is further rotatably mounted in the first sliding groove (11), the lead screw (12) penetrates through the sliders (14) and is connected with the sliders (14) through thread fit, a position adjusting switch (10) is fixedly mounted on the lead screw (12), a screw rod (15) is further fixedly connected on the sliders (14), a nut (17) matched with the screw rod (15) is arranged on the screw rod (15), and a support plate (16) is further fixedly mounted on the screw rod (15).

4. The grating angle adjusting device for Raman spectrometer of claim 3, wherein two sliding blocks (14) are installed in the first sliding groove (11).

5. The grating angle adjusting device for Raman spectrometer according to claim 2, wherein the upper surface of the sliding plate (22) is provided with an anti-slip layer.