CN2062730U - Automatic cleaning apparatus for system to make prefabricated bar of optical fiber - Google Patents
Automatic cleaning apparatus for system to make prefabricated bar of optical fiber Download PDFInfo
- Publication number
- CN2062730U CN2062730U CN 90200422 CN90200422U CN2062730U CN 2062730 U CN2062730 U CN 2062730U CN 90200422 CN90200422 CN 90200422 CN 90200422 U CN90200422 U CN 90200422U CN 2062730 U CN2062730 U CN 2062730U
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- CN
- China
- Prior art keywords
- polished rod
- deashing
- wheel box
- bearing
- electric motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to an automatic cleaning device for the system to make prefabricated bars of optical fibers. An electric motor used in a miniature instrument added with a bearing is adopted for driving a polished rod through the friction force between the electric motor and the polished rod; the methods of scraping ash and blowing air for removing ash are combined into integration. The utility model has the advantages of simple structure, small size, stepless speed regulation and automatic dust removing. With the device, the reaction tubes of the prefabricated bars with dimensional stability, small constringency and uniformity can be produced. The produced prefabricated bars has high precision geometric size and stable performance, and the deposition with high flow rate and high speed can be realized.
Description
The utility model belongs to a supplementary unit of preform manufacturing system, and it is exclusively used in MCVD method (modified chemical vapor deposition abbreviation) optical fiber performing system, to remove the solid-state useless ash that is produced in the system rod motion.
With MCVD method deposition preform is to pass to Sicl in silica tube
4, Gecl
4, O
2Deng raw material, use hydrogen-oxygen shower nozzle back and forth movement heated quarty tube again, make its raw material produce chemical reaction at high temperature, when oxyhydrogen flame is finished primary depositing with the planker motion, in quartzy tail pipe, generate SiO
2, GeO
2Etc. solid-state useless ash.Removing useless ash rationally and effectively is the critical process of making prefabricated rods, whether can remove useless ash in the manufacturing effectively, whether can make the key of high precision geometrical dimension preform at high speed, some MCVD systems of existing domestic introduction have the manual logical ash of quartz pushrod of crotch by human, because the each action of different operating person is not exclusively the same, fluctuation of service, to cause air-flow instability in the reaction tubes, influence the performance of prefabricated rods geometric accuracy and prefabricated rods, " optical communication research " (87) year the 3rd phase, total 43 phases) propose that ash is scraped in available screw rod rotation or the air blowing method is removed useless ash, but to be the method for will scrape and blow separately carry out for it, use which kind of method all to be difficult to reach the purpose of thorough deashing separately, have the shortcoming of deashing by hand equally, Finland NoKia cable machinery company once adopted the geartransmission augering screw to advance and scraped ash, its apparatus structure is complicated, volume is big, and deashing speed can not be regulated continuously, uses handiness relatively poor.Continue to use various deashing devices at present and have shortcoming for overcoming, seek a kind ofly can remove useless ash more up hill and dale, to guarantee that obtaining high precision (refers to geometrical dimension, high-quality preform, and mechanism is simple, easy to use, can realize the deashing device of continuous stepless speed governing, the spy has proposed the utility model.
For finishing the proposed invention task, adopted following technical proposals:
The utility model is made up of deashing pipe, transmission rig and air duct, it is characterized in that:
1, the deashing tube end has pore, and scraping blade is housed, and the method for rotation being scraped ash and air blowing deashing is combined as a whole, and makes the useless powder Ex-all more up hill and dale that scrapes;
2, in transmission rig, a miniature instrument electric motor is arranged, link to each other with wheel box by a polished rod, spot contact bearing in this polished rod and the wheel box is a wringing fit, so just can adopt electric motor to add frictional force between polished rod and bearing,, use mechanical speed change to realize stepless speed regulation as transmission, electric commutation, with control deashing pipe move left and right, make it simple in structure, flexible movements, easy to adjust, can realize the deashing automatization.
Below in conjunction with the embodiment accompanying drawing this utility model is elaborated:
Fig. 1 is the utility model synoptic diagram
Fig. 2 is the utility model wheel box synoptic diagram
Fig. 3 is wheel box speed control principle figure
In Fig. 1, (1) steel cylinder, (2) limit switch-1, (3) adjustment sheet, (4) washer, (5) scaleplate, (6) polished rod, (7) limit switch-2, (8) electric motor, (9) wheel box, (10) framework, (11) under meter, (12) plastics tubing, (13) spacer, (14) deashing pipe, (15) draw together sheet, (16) pore, (17) tail pipe, (18) limit switch-3, (19) hydrogen-oxygen shower nozzle, (20) silica tube.
Link to each other with deashing pipe (14) by under meter (11), plastics tubing (12) in order to the steel cylinder (1) that holds nitrogen.Deashing pipe (14) end has pore (16), and scraping blade (15) is housed.Because the relative rotation with deashing pipe (14) of tail pipe (17), the scraping blade on the deashing pipe (15) can be struck off the useless ash in the tail pipe, to regulate flow and an amount of nitrogen can be blown into tail pipe to remove useless ash, the method that will scrape ash and air blowing deashing like this integrally combines.Deashing pipe (14) can move in spacer (13) perforate, regulates the deashing pipe and stretches into tail pipe length, and being transferred to needs with behind the position, and available screw is fixed on the spacer (13).Spacer links to each other with washer (4), and washer (4) links to each other with wheel box (9), and wheel box (9), limit switch-1(2), limit switch-2(7), electric motor (8) all are fixed on the framework (10).Electric motor (8) is selected miniature instrument motor for use, and volume is little, and is in light weight, rotating speed is low, output torque is big, can use under envrionment temperature is no more than 90 ℃ condition, and electric motor (8) drives by polished rod (6), wheel box (9) and washer (4) that deashing pipe (14) is left and right to be moved.
In Fig. 2, (21) spot contact bearing-1, (22) interlock piece, (23) pearl bearing-2, (3) adjustment sheet, (5) scaleplate, (6) polished rod, (24) ditty bearing, (25) big axle, (26) spring, (27) butterfly spring adjusted.
As can be seen from Figure 2, wheel box (9) is not drawn by spot contact bearing-1(21), spot contact bearing-2(23) and spot contact bearing-3(), butterfly spring (27), parts such as large and small adjustment axle (25), (24) are formed, three spot contact bearing are loaded on the polished rod (6), the interior ring of three bearings has lean on butterfly spring (27) to press all the time on polished rod (6) respectively at 3, spring (26) is fixed in spot contact bearing-2(23) and between the casing of wheel box (9), because spring tension makes bearing tilt to be installed on the polished rod.Interlock piece (22) is equipped with so that the tilt adjustment of three bearings is consistent synchronously in the top of three spot contact bearing, large and small adjustment axle (25), (24) are installed between the case shell of wheel box (9), trim plate (3) links to each other with the big axle (25) of adjusting, moving trim plate (3) can make big adjustment axle rotate around the ditty bearing, change the relative position of large and small adjustment between centers, the big distance of adjusting between axle (25) and a spot contact bearing-2(23) is changed, thus the pitch angle size between change bearing and polished rod.
From Fig. 3 as seen owing between bearing and polished rod tiltangle is arranged, when polished rod rotate, held by last item and polished rod between the certain frictional force of generation, frictional force makes bearing advance with certain helix angle, its rate of advance can be calculated as follows.
V＝π.d.n.tgθ
In the formula: V-deashing device translational speed
D-polished rod diameter
The n-motor speed
Angle between θ-bearing and polished rod
Can find out that from following formula d, n one timing when device change the angle theta between bearing and polished rod, can change the deashing device translational speed, thereby make this device can realize stepless speed regulation.
Before the driving, regulate deashing pipe (14) built-in length earlier, be fixed on the spacer (13),, can preset deashing speed by trim plate (3) according to the variant production requirement.Regulating under meter (11) flow can blow out the ash that gives up the feeding nitrogen flow, can produce simultaneously certain tail pressure again in tail pipe makes prefabricated rods keep rounding when high temperature deposition, do not shrink, and stop the atmosphere of tail pipe back to enter in the prefabricated rods, can start working after ready.
During the system rod, in silica tube, pass to Sicl
4, Gecl
4, O
2Deng raw material, drive hydrogen-oxygen shower nozzle (19) to-and-fro movement by transmission mechanism (not belonging to the present invention does not draw), heated quarty tube (20), the raw material in the pipe produces chemical reaction in high temperature, generate SiO simultaneously in tail pipe
2, GeO
2Etc. solid-state useless ash, when the hydrogen-oxygen shower nozzle was finished primary depositing with planker motion, hydrogen-oxygen shower nozzle collision limit switch-3(18), electric motor (8) were promptly started working.Electric motor (8) drives polished rod (6) rotation, because the interior ring of spot contact bearing tilts to be pressed on the polished rod in the wheel box, held by last item and polished rod between frictional force bearing is advanced with certain helix angle, the deashing pipe (14) that links to each other with washer on the wheel box (4) is also driven and is put in tail pipe, because tail pipe is relative with the deashing pipe to be rotated, scraping blade on the deashing pipe (15) scrapes the useless ash in the tail pipe, the nitrogen that blows out from the deashing tube end useless ash that will scrape blows down simultaneously, because nitrogen is kept certain tail and is pressed, can prevent that outside atmosphere from entering, can prevent that again reaction tubes from shrinking when high temperature deposition.The deashing pipe continues inwardly to put in, when washer (4) and limit switch-electric motor when 2(7) colliding (8) counter-rotating, deashing pipe (14) is oppositely outer to move back, when falling back on washer (4) and limit switch-when 1(2) colliding, deashing pipe (14) stops to move, and finishes deashing one time, and the hydrogen-oxygen shower nozzle is dragged once more and carries out the 2nd heating, deposition simultaneously, so come and go and carry out, till finishing the whole depositions of prefabricated rods.
When changing deashing speed as need, only need move the position of trim plate (3) in scale card (5), big adjustment axle is rotated along the ditty bearing, change the large and small relative position of adjusting between axle (25), (24), that is the tiltangle that changes between bearing and polished rod can be realized stepless speed regulation.
Adopt the utility model to be used for preform production and have following advantage:
1, apparatus structure is simple, volume is little, the speed governing of energy continuous stepless, can realize the deashing automation in the deposition process, reduces labor intensity;
2, can keep steady air current in the quartz ampoule in the deashing process, no matter in multimode or the prefabricated process of single-mode fiber the reaction tube dimensionally stable, evenly, shrink little, prefabricated rods dimensional accuracy height, stable performance.
3, use this device and can realize big flow high speed deposition.
Claims (3)
1, the automatic ash removing device used of a kind of optical fiber prefabricating bar system, form by deashing pipe, transmission rig and air duct, it is characterized in that: deashing pipe (14) end has pore, and scraping blade is housed, in transmission rig, one miniature instrument is arranged with electric motor (8), link to each other with wheel box (9) by a polished rod (6), the spot contact bearing in this polished rod (6) and the wheel box (9) is a wringing fit.
2, by the described deashing device of claim 1, it is characterized in that: the electric motor in the transmission rig (8), wheel box (9), limit switch (2,7), polished rod (6), washer (4) all is fixed on the framework (10), and washer (4) is connected with deashing pipe (14) by a spacer (13) again.
3, by claim 1,2 described deashing devices, it is characterized in that: three spot contact bearing are arranged in the wheel box (9), its interior ring is to be pressed on all the time on the polished rod (6) by disk spring (27), and spot contact bearing top is equipped with the spring (26) of regulating three bearings maintenance inclination installation that can link and is fixed in a rolling bearing one 2(23) between the casing of wheel box (9); Link to each other with trim plate (3), and can all be installed between the case shell of wheel box (9) around the big adjustment axle (25) and the ditty bearing (24) of ditty bearing (24) rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200422 CN2062730U (en) | 1990-01-16 | 1990-01-16 | Automatic cleaning apparatus for system to make prefabricated bar of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90200422 CN2062730U (en) | 1990-01-16 | 1990-01-16 | Automatic cleaning apparatus for system to make prefabricated bar of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2062730U true CN2062730U (en) | 1990-09-26 |
Family
ID=4882219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90200422 Withdrawn CN2062730U (en) | 1990-01-16 | 1990-01-16 | Automatic cleaning apparatus for system to make prefabricated bar of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2062730U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788090A (en) * | 2019-11-18 | 2020-02-14 | 中国电子科技集团公司第四十六研究所 | Improved generation MCVD system tail gas draws grey pole |
| CN111468484A (en) * | 2020-05-10 | 2020-07-31 | 黄宏琪 | Cleaning device for MCVD tail end dust and using method thereof |
| CN116197188A (en) * | 2023-02-16 | 2023-06-02 | 长飞光纤光缆股份有限公司 | Optical fiber preform deposition process pipeline cleaning method |
-
1990
- 1990-01-16 CN CN 90200422 patent/CN2062730U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788090A (en) * | 2019-11-18 | 2020-02-14 | 中国电子科技集团公司第四十六研究所 | Improved generation MCVD system tail gas draws grey pole |
| CN111468484A (en) * | 2020-05-10 | 2020-07-31 | 黄宏琪 | Cleaning device for MCVD tail end dust and using method thereof |
| CN116197188A (en) * | 2023-02-16 | 2023-06-02 | 长飞光纤光缆股份有限公司 | Optical fiber preform deposition process pipeline cleaning method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |