CN103364920A

CN103364920A - Device for realizing pipeline light path collimation adjustment for laser online gas analyzer

Info

Publication number: CN103364920A
Application number: CN2013100714774A
Authority: CN
Inventors: 张苏伟; 吴升海; 刘召贵
Original assignee: Jiangsu Skyray Instrument Co Ltd
Current assignee: Jiangsu Skyray Instrument Co Ltd
Priority date: 2013-03-07
Filing date: 2013-03-07
Publication date: 2013-10-23
Anticipated expiration: 2033-03-07
Also published as: CN103364920B

Abstract

The invention discloses a device for realizing pipeline light path collimation adjustment for a laser online gas analyzer, which can be used for protecting an optical lens placed in a pipeline. The device comprises a flange adjusting assembly, a lens placing pipeline, a connecting pipeline, a lens adapter, a locking ring and the like, wherein each mechanism is connected into an entire set of device, so that the collimation adjustment of the pipeline can be realized, and the pitch angle of the optical lens can be adjusted; a unique connecting way of engaging the external thread of the pipeline with the internal thread of a lantern ring is adopted, so that the optical lens is prevented from being damaged by metal scraps; and an effective optical cavity length can be selected according to a practical requirement, and convenience is brought to installation and detachment.

Description

Be used for the device that laser on-line gas analysis instrument realizes that the pipeline beam path alignment is regulated

Technical field

The present invention relates to optical field, specifically, relate to a kind of device of realizing the adjusting of pipeline beam path alignment for laser on-line gas analysis instrument.

Background technology

At present, the optics cavity of the longer light path of known needs is generally directly welded by welding flange or bolt is connected and fixed, because the error that workpiece own or standard component produce in process of production, the accurate system of the light path after easily causing welding or being connected and fixed does not satisfy the light path needs; Directly place simultaneously optical mirror slip (window, high reflective mirror etc.), after tightening one-piece construction, the metal fragment that the meshing process of optics pipeline internal and external threads is produced remains in optics cavity interior focusing eyeglass and causes damage, simultaneously the rubbery flat gasket of outside realization sealing the pipeline internal and external threads repeatedly meshing process easily produce damage, simultaneously generally be the mode of the dull joint of single optical eyeglass, can't be according to the needs of optical demands in various degree.

Summary of the invention

For the optics cavity pipeline that solves the existing longer light path of part instrument is difficult for regulating, easy to clean metal fragment not, be difficult for satisfying the purpose of the needs of multiple optical demands, the invention provides a kind of device of realizing the adjusting of pipeline beam path alignment for laser on-line gas analysis instrument, this device can not only be realized the collimation variable adjustment of whole light path, range of adjustment is larger, can realize that two segment pipes of coenosarc are not regulated, the metal fragment that produces in simultaneously can the meshing process of double thread is cleared up, avoided the damage to optical mirror slip, and adopt universal pipe connecting structure, realized the characteristics that share of many arrangements of mirrors sheet.

The technical solution adopted for the present invention to solve the technical problems is:

1, the bone flange governor motion that adopts protruding sphere and concave spherical surface to form is realized the variable adjustment of beam path alignment degree, realize that by the adjusting part of tightening, unscrew screw gasket, spring formation two flanges X, Y-direction at the space perpendicular centered by the centre of sphere of sphere is rotated, thereby adjust the collimation of light path.

2, can adaptive sizes, the optical mirror slip of kind, can adopt the window adapter for common window, optical mirror slip for high reflectances such as high reflective mirrors adopts the high reflective mirror adapter, and adopts the high precision fine tuning structure to finely tune, as required choice for use.

3, in order to solve the kish fines problem, adopt the two thread connecting modes of pipeline, it no longer is traditional direct meshing connection of internal and external threads, both needed to clear up the optics cavity pipeline junction that connects again at all, adopt external thread, utilize the internal thread of external collar that two parts are locked, realize the two connection.

4, each several part will become a relatively independent optics cavity in the light path system, and can satisfy the working environment needs and have sealed characteristic dustproof, waterproof, adopts the pipeline thread of convenient disassembly to connect, and realizes respectively independently sealing of optics cavity with O type circle.

5, the intensity that adopts the principle of versatility can increase or reduce according to the needs of practical function the lens number of tubes to realize light beam, collimation etc.

The invention has the beneficial effects as follows, can be when carrying out whole beam path alignment adjusting, easy disassembly, simple in structure, easy for installation, each funtion part is relatively independent, can directly increase or reduce the function number of tubes, versatility is better, can adaptive sizes, functional lens.

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Description of drawings

Fig. 1 is the integrated machine composition that laser on-line gas analysis instrument is realized the device that the pipeline beam path alignment is regulated that is used for of the present invention.

Fig. 2 is the figure of the 3rd visual angle projected profile of Fig. 1.

Fig. 3 is the schematic diagram that does not need the package unit of high precision adjusting.

Number in the figure explanation: 1. joint flange, 2. pipeline regulating flange, 3. spring, 4 flat shims, 5. set screw, 6. optical mirror slip, 7. optical mirror slip adapter, 8. brass shim spacer, the 9. collar, 10. high precision fine tuning screw, 11. micrometer adjusting screw pipelines, 12. gas blow pipes, 13. cover, 14. supports, 15. connecting pipes, 16. the first lock ring, 17. second lock rings, 18. lens adapters, 19. lens, 20. the one O type circles, 21. the 2nd O type circles 2,22. the 3rd O type circle, 23. lock screw, 24. the 4th O type circles, 25. the 5th O type circle, 26. the 6th O type circles, 27. attachment screws, 28. the lens pipeline, 29. light sources receive transmitter.

Embodiment

In conjunction with illustrated in figures 1 and 2, the device of realizing the adjusting of pipeline beam path alignment for laser on-line gas analysis instrument of the present invention is made of four major parts:

I partly is the flange governor motion, by joint flange 1, and pipeline regulating flange 2, spring 3, flat shim 4, set screw 5, optical mirror slip 6, optical mirror slip adapter 7, brass shim spacer 8, the three O type circles 22, the 4th O type circle 24, the five O type circles 25, the six O type circles 26, attachment screw 27 consists of.

II partly is high precision fine tuning mechanism, by the collar 9, and high precision fine tuning screw 10, micrometer adjusting screw pipeline 11, lock screw 23 consists of.

III partly is the lens pipeline mechanism, by the collar 9, and gas blow pipe 12, lens pipeline 28, connecting pipe 15, the first lock rings 16, the second lock rings 17, lens adapter 18, lens 19, the one O type circles 20, the two O type circles 21, lock screw 23 consists of.

IV partly receives or transmitting terminal, and by cover 13, support 14, light source receive transmitter 29 and consist of.

I partly is that flange governor motion main body is to be made of joint flange 1, pipeline regulating flange 2, the protruding sphere of the two and concave spherical surface form adjustment structure, consisting of adjusting part by spring 3, flat shim 4, set screw 5 regulates, set screw 5 realizes that pipeline regulates carrying out the protruding sphere centre of sphere rotation around joint flange 1 of concave spherical surface that rundown process will make pipeline regulating flange 2, spring 3 flat shims 4, set screw 5 consist of adjusting parts respectively has one in X, the Y-direction of horizontal plane, has just realized the adjusting of X, Y both direction; Also be the pipeline of placing optical mirror slip in the inner chamber of pipeline regulating flange 2 simultaneously, can place common window, high reflective mirror etc., such as optical mirror slip 6, optical mirror slip adapter 7, brass shim spacer 8; Realize the sealing of pipeline between each part by the 3rd O type circle 22, the 4th O type circle 24, the 5th O type circle 25, the 6th O type circle 26 etc.; Package unit is fixed in the test environment by attachment screw 27.

II part high precision fine tuning mechanism mainly realizes the adjusting to the optical mirror slip 6 of I part, mainly be to regulate by high precision fine tuning screw 10, the bulb contact brass shim spacer 8 of high precision fine tuning screw 10, when tightening screw, push the 4th O type circle 24, make its distortion, thereby realize with the deflection of high reflective mirror as optical mirror slip 6, realize regulating, 10 one-tenth 120 ° of angles of three high precision fine tuning screws are distributed on the micrometer adjusting screw pipeline 11, and become 30 ° of angles with axis; The external thread of the internal thread of the collar 9 and pipeline regulating flange 2 is meshing, and the two is meshing to be outside at pipeline, prevents that the metal fragment in the meshing process from entering pipeline, and to the optical mirror slip injury, lock screw 23 realizes locking.

III part lens pipeline mechanism body is to be made of lens pipeline 28, connecting pipe 15 and the collar 9, and it is original papers that realization is connected with other parts that connecting pipe 15 is connected with the collar; Lens pipeline 28 mainly is the pipeline of placing window, the second lock ring 17 has fixedly consisted of relatively independent lens subassembly with lens adapter 18 internal and external threads are meshing with lens 19, an O type circle 20, this assembly is placed directly in the lens pipeline 28, lens pipeline 28 forms fit dimension with lens adapter 18 internal-and external diameters, at last by the first lock ring 16 and the meshing fixed lens assembly of lens pipeline 28 internal and external threads.At this moment, can clean out from lens pipeline mechanism two ends with the lens both sides meshing metal fragment of screw thread, prevent from damaging lens.

IV partly receives or transmitting terminal, is made of cover 13, support 14, light source reception transmitter 29 etc., and light source receives transmitter 29 and is fixed on the support 14.

Optical mirror slip is the device that adopts the common window pattern of many groups in another embodiment shown in Figure 3, do not need optical mirror slip is regulated, mark accordingly signal in conjunction with Fig. 2, can select direct connecting pipe 15, the collar 9 to be connected with pipeline regulating flange 2, and pipeline regulating flange 2 is just the same with the optics cavity size of lens pipeline 28 interior placement optical elements, both can the optical mirror slip of the lens pipeline mechanism among Fig. 2 is consistent.

Claims

1. be used for the device that laser on-line gas analysis instrument realizes that the pipeline beam path alignment is regulated, by joint flange (1), pipeline regulating flange (2), the collar (9), micrometer adjusting screw pipeline (11), lens pipeline (28), connecting pipe (15), light source receives transmitter (29) and support (14) is linked in sequence, be provided with optical mirror slip (6) in the micrometer adjusting screw pipeline (11), it is characterized in that, described joint flange (1) and pipeline regulating flange (2) respectively are provided with protruding sphere and the concave spherical surface that can overlap, be connected to form for the bone flange governor motion of regulating pipeline beam path alignment degree by set screw (5), described set screw (5) is provided with spring (3) and flat shim (4), be placed with optical mirror slip (6) in the inner chamber of pipeline regulating flange (2), be provided with in the micrometer adjusting screw pipeline (11) for the high precision fine tuning screw (10) of regulating optical mirror slip (6) angle of pitch, the external thread of pipeline regulating flange (2) is passed through in the whole connection of described device, the external thread of lens pipeline (28) is connected with the internal thread of the collar (9).

2. according to claim 1ly realize the device that the pipeline beam path alignment is regulated for laser on-line gas analysis instrument, it is characterized in that, the flange adjusting part that described spring (3), flat shim (4), set screw (5) consist of, described flange adjusting part respectively is provided with one in X, the Y-direction of horizontal plane.

3. according to claim 1ly realize the device that the pipeline beam path alignment is regulated for laser on-line gas analysis instrument, it is characterized in that, also be placed with optical mirror slip adapter (7) and brass shim spacer (8) in the inner chamber of described pipeline regulating flange (2), carry out the sealing of pipeline by the 3rd O type circle (22), the 4th O type circle (24), the 5th O type circle (25), the 6th O type circle (26) between optical mirror slip 6, optical mirror slip adapter (7) and the brass shim spacer (8).

4. according to claim 1 or 3 describedly realize the devices that the pipeline beam path alignment is regulated for laser on-line gas analysis instrument, it is characterized in that, described optical mirror slip (6) is high reflective mirror.

5. according to claim 1ly realize the device that the pipeline beam path alignment is regulated for laser on-line gas analysis instrument, it is characterized in that, be provided with three high precision fine tuning screws (10) in the described micrometer adjusting screw pipeline (11), be 120 ° of angles and be distributed on the micrometer adjusting screw pipeline (11), and become 30 ° of angles with axis.

6. according to claim 1ly realize the device that the pipeline beam path alignment is regulated for laser on-line gas analysis instrument, it is characterized in that, the internal thread of the external thread of described pipeline regulating flange (2) and lens pipeline (28) and the collar (9) is meshing, and is connected with connecting pipe (15) after locking with lock screw (23).