CN105044274A - Laser igniting experiment apparatus with multi-test piece continuous igniting function - Google Patents
Laser igniting experiment apparatus with multi-test piece continuous igniting function Download PDFInfo
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- CN105044274A CN105044274A CN201510483407.9A CN201510483407A CN105044274A CN 105044274 A CN105044274 A CN 105044274A CN 201510483407 A CN201510483407 A CN 201510483407A CN 105044274 A CN105044274 A CN 105044274A
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Abstract
The invention discloses a laser igniting experiment apparatus with a multi-test piece continuous igniting function, comprising a lens gland, a laser lens, a combustion room shell, a gas inlet pipe, a lower box body cover, a lower box body, a wiring tube, a lower box body bottom plate, a stepmotor, a synchronous belt wheel, a synchronous belt, a step shaft, a test piece tray, a baffle and an exhaust tube. During use, a solid propellant test piece is fixed in a placing slot. Then the laser igniting experiment apparatus is subjected to gas tightness detection, after the good gas tightness of the laser igniting experiment apparatus is determined, a laser is started to ignite the first solid propellant test piece, then, the stepmotor is endowed with a certain amount of pulses to cause the next solid propellant test piece to be just positioned below the laser lens, then igniting is performed again, and above steps are repeated until the test pieces are all ignited. The laser igniting experiment apparatus is simple and convenient to operate and capable of realizing a continuous laser igniting experiment of multiple test pieces in an airtight combustion room, and the number of the test pieces can be adjusted according to the size of the combustion room.
Description
Technical field
The invention belongs to solid propellant ignition technology, be specifically related to a kind of many sample continuous ignitions laser ignition experimental provision.
Background technology
In research solid propellant ignition and burning performance, there is various ignition mode.Laser ignition is a kind of safety, reliably, and light Novel ignition technology, its export energy high and be easy to regulate, can independent of initial temperature, pressure and gas group grade environmental parameter select energy density, decrease the thermal loss in experimentation and heterogeneous effect, anti-electromagnetic interference capability is strong.So the laser ignition burning performance of research solid propellant is significant to rocket-propelled development.
A simple airtight firing chamber just built by the experimental provision of existing research solid propellant laser ignition performance, function singleness, and can only light a fire to a sample, rear dismounting experimental provision must be tested at every turn reinstalled sample if igniting experiments will be carried out to many samples. at every turn
Chinese patent 201410519983.X discloses a kind of high temperature resistant pressure-adjustable laser ignition experimental provision, described device not only complicated operation, cost of idle time, and all will carry out air-leakage test after each dismounting experimental provision, and process is loaded down with trivial details.
Summary of the invention
The object of the invention is the deficiency improving existing apparatus, a kind of laser ignition experimental provision of many sample continuous ignitions is provided.
The technical solution realizing the object of the invention is: a kind of laser ignition experimental provision of many sample continuous ignitions, comprises lens gland, laser lens, burning chamber shell, draft tube, lower box lid, lower box, wire barrel, lower box base plate, stepper motor, synchronous pulley, Timing Belt, stepping axle, sample tray, baffle plate, gas outlet, laser lens is placed in burning chamber shell top center, lens cover pushes down laser lens and burning chamber shell is connected, combustion chamber shell body sidewall has two the first through holes, draft tube and gas outlet are separately positioned in described first through hole, be connected with lower box tops bottom burning chamber shell, lower box is connected with lower box lid and lower box base plate respectively, lower box sidewall has wiring hole, wire barrel is arranged in described wiring hole, stepper motor is fixed on lower box base plate, the output shaft of stepper motor is provided with synchronous pulley, lower box covers and is provided with the second through hole, stepping axle is through described second through hole, one end is connected with bearing seat, the other end and sample tray are connected.Bearing seat is fixed on lower box base plate, and sample tray is positioned at burning chamber shell.The stepping axle being positioned at lower box is provided with synchronous pulley, and two synchronous pulleys are connected by Timing Belt, are provided with baffle plate above sample tray, and baffle plate is fixed on burning chamber shell inwall by web joint.
Described sample tray end face, to distribute several article putting grooves along its circumferential uniform intervals, sample is arranged in described article putting groove.
Described baffle plate and sample tray are circle, and the diameter of baffle plate is not less than the diameter of sample tray.
Described baffle edge is provided with an opening, and opening is positioned at immediately below laser lens, and is positioned at directly over article putting groove.
Also comprise O-ring seal, the joint face of burning chamber shell and lower box lid is provided with O-ring seal, and the joint face of lower box lid and lower box is provided with O-ring seal, and the joint face of lower box and lower box base plate is provided with O-ring seal.
By filling with sealant sealing in described wire barrel.
Compared with prior art, its remarkable advantage is in the present invention: the many samples that (1) can realize robotization in an airtight firing chamber cavity carry out laser ignition experiment continuously.
(2) quantity of sample can adjust according to the size of firing chamber, is applicable to polytype sample, for the sample of different size, only needs to change the groove size of sample tray being laid sample.
(3) with low cost, easy and simple to handle, save time cost, improve conventional efficient.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the laser ignition experimental provision of the present invention's many sample continuous ignitions.
Fig. 2 is the sample tray schematic diagram of the laser ignition experimental provision of the present invention's many sample continuous ignitions.
Fig. 3 is the baffle plate schematic diagram of the laser ignition experimental provision of the present invention's many sample continuous ignitions.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 1 ~ Fig. 3, a laser ignition experimental provision for many sample continuous ignitions, comprises lens gland 1, laser lens 2, burning chamber shell 3, draft tube 4, lower box lid 6, lower box 7, wire barrel 8, lower box base plate 9, stepper motor 10, synchronous pulley 11, Timing Belt 12, stepping axle 13, sample tray 14, baffle plate 15, gas outlet 16, laser lens 2 is placed in burning chamber shell 3 top center, lens cover 1 is pushed down laser lens 2 and is connected with burning chamber shell 3, burning chamber shell 3 sidewall has two the first through holes, draft tube 4 and gas outlet 16 are separately positioned in described first through hole, be connected with lower box lid 6 top bottom burning chamber shell 3, lower box 7 is connected with lower box lid 6 and lower box base plate 9 respectively, lower box 7 sidewall has wiring hole, wire barrel 8 is arranged in described wiring hole, stepper motor 10 is fixed on lower box base plate 9, the output shaft of stepper motor 10 is provided with synchronous pulley 11, lower box lid 6 is provided with the second through hole, stepping axle 13 is through described second through hole, one end is connected with bearing seat, the other end and sample tray 14 are connected.Bearing seat is fixed on lower box base plate 9, and sample tray 14 is positioned at burning chamber shell 3.The stepping axle 13 being positioned at lower box 7 is provided with synchronous pulley 11, and two synchronous pulleys 11 are connected by Timing Belt 12, are provided with baffle plate 15 above sample tray 14, and baffle plate 15 is fixed on burning chamber shell 3 inwall by web joint.
At sample tray 14 end face, to distribute several article putting grooves 17 along its circumferential uniform intervals, sample is arranged in described article putting groove.
Baffle plate 15 and sample tray 14 are circle, and the diameter of baffle plate 15 is not less than the diameter of sample tray 14, and baffle plate 15 edge is provided with an opening, and opening is positioned at immediately below laser lens 2, and is positioned at directly over article putting groove 17.
Sample is solid propellant or pasty propellant.
Also comprise O-ring seal 5, burning chamber shell 3 is provided with O-ring seal 5 with the joint face of lower box lid 6, and lower box lid 6 is provided with O-ring seal 5 with the joint face of lower box 7, and lower box 7 is provided with O-ring seal 5 with the joint face of lower box base plate 9.
By filling with sealant sealing in described wire barrel 8.
Embodiment 1
Composition graphs 1 ~ Fig. 3, a laser ignition experimental provision for many sample continuous ignitions, comprises lens gland 1, laser lens 2, burning chamber shell 3, draft tube 4, lower box lid 6, lower box 7, wire barrel 8, lower box base plate 9, stepper motor 10, synchronous pulley 11, Timing Belt 12, stepping axle 13, sample tray 14, baffle plate 15, gas outlet 16.Laser lens 2 is placed in burning chamber shell 3 top center, and lens cover 1 is pushed down laser lens 2 and is connected by screw thread with burning chamber shell 3, burning chamber shell 3 sidewall has two the first through holes, two the first through hole heteropleurals.Draft tube 4 and gas outlet 16 are separately positioned in described first through hole, be connected by bolt with lower box lid 6 top bottom burning chamber shell 3, lower box 7 is connected by bolt with lower box lid 6 and lower box base plate 9 respectively, lower box 7 sidewall has wiring hole, wire barrel 8 is arranged in described wiring hole, stepper motor 10 is welded on lower box base plate 9, the output shaft of stepper motor 10 is provided with synchronous pulley 11, lower box lid 6 is provided with the second through hole, stepping axle 13 is through described second through hole, one end is connected with bearing seat, and the other end and sample tray 14 are connected.Bearing seat is welded on lower box base plate 9, and sample tray 14 is positioned at burning chamber shell 3.The stepping axle 13 being positioned at lower box 7 is provided with synchronous pulley 11, and two synchronous pulleys 11 are connected by Timing Belt 12, are provided with baffle plate 15 above sample tray 14, and baffle plate 15 is fixed on burning chamber shell 3 inwall by web joint.
At sample tray 14 end face, to distribute 8 article putting grooves 17 along its circumferential uniform intervals, sample (i.e. solid propellant) is arranged in described article putting groove.
Baffle plate 15 and sample tray 14 are circle, and the diameter of baffle plate 15 equals the diameter of sample tray 14, and baffle plate 15 edge is provided with an opening, and opening is positioned at immediately below laser lens 2, and is positioned at directly over article putting groove 17.
Burning chamber shell 3 is provided with O-ring seal 5 with the joint face of lower box lid 6, and lower box lid 6 is provided with O-ring seal 5 with the joint face of lower box 7, and lower box 7 is provided with O-ring seal 5 with the joint face of lower box base plate 9.
By filling with sealant sealing in described wire barrel 8.
The course of work:
Solid propellant sample to be fixed in article putting groove 17 and to load onto baffle plate 15, then loading onto burning chamber shell 3 and fastening screw everywhere.First air-leakage test is carried out to the present invention before experiment, its process is as follows: first close gas outlet 16, be filled with the nitrogen of 3Mpa to this device from draft tube 4, leave standstill 10 minutes, if the rain glass registration be connected with the present invention is constant, then illustrate that this device impermeability is good, if the rain glass registration be connected with this device reduces, then re-start air-leakage test after needing fastening screw everywhere.Determine the pulse giving stepper motor 10 some after impermeability of the present invention well, stepper motor 10 drives stepping axle 13 to turn over certain angle by Timing Belt 12, and the solid propellant sample in the article putting groove 17 of sample tray 14 is positioned at immediately below laser lens 2.Open laser instrument, laser beam is radiated on solid propellant sample through laser lens 2, and sample is lighted a fire.First sample gives the pulse of stepper motor 10 some again after having lighted a fire, next root solid propellant sample is just in time positioned at immediately below laser lens 2.Open laser instrument, again light a fire, repeat above step until sample has all been lighted a fire.Because baffle plate 15 is provided with an opening, each solid propellant sample igniting only has a sample to be exposed to opening part, and all the other samples are then sheltered from by baffle plate 15, avoids being misquoted other solid propellant samples of combustion by the Mars splashed.
The invention has the advantages that the many samples that can realize robotization in an airtight firing chamber cavity carry out laser ignition experiment continuously.The quantity of sample can adjust according to the size of firing chamber, is applicable to polytype sample, for the sample of different size, only needs to change the groove size of sample tray being laid sample.With low cost, easy and simple to handle, save time cost, improve conventional efficient.
Claims (6)
1. a laser ignition experimental provision for more than sample continuous ignition, is characterized in that: comprise lens gland (1), laser lens (2), burning chamber shell (3), draft tube (4), lower box lid (6), lower box (7), wire barrel (8), lower box base plate (9), stepper motor (10), synchronous pulley (11), Timing Belt (12), stepping axle (13), sample tray (14), baffle plate (15) and gas outlet (16), laser lens (2) is placed in burning chamber shell (3) top center, lens cover (1) is pushed down laser lens (2) and is connected with burning chamber shell (3), burning chamber shell (3) sidewall has two the first through holes, draft tube (4) and gas outlet (16) are separately positioned in described first through hole, burning chamber shell (3) bottom is connected with lower box lid (6) top, lower box (7) is connected with lower box lid (6) and lower box base plate (9) respectively, lower box (7) sidewall has wiring hole, wire barrel (8) is arranged in described wiring hole, stepper motor (10) is fixed on lower box base plate (9), the output shaft of stepper motor (10) is provided with synchronous pulley (11), lower box lid (6) is provided with the second through hole, stepping axle (13) is through described second through hole, one end is connected with bearing seat, the other end and sample tray (14) are connected, bearing seat is fixed on lower box base plate (9), and sample tray (14) is positioned at burning chamber shell (3), the stepping axle (13) being positioned at lower box (7) is provided with synchronous pulley (11), two synchronous pulleys (11) are connected by Timing Belt (12), sample tray (14) top is provided with baffle plate (15), and baffle plate (15) is fixed on burning chamber shell (3) inwall by web joint.
2. the laser ignition experimental provision of many sample continuous ignitions according to claim 1, is characterized in that: described sample tray (14) end face, and to distribute several article putting grooves (17) along its circumferential uniform intervals, sample is arranged in described article putting groove.
3. the laser ignition experimental provision of many sample continuous ignitions according to claim 1, is characterized in that: described baffle plate (15) and sample tray (14) are circle, and the diameter of baffle plate (15) is not less than the diameter of sample tray (14).
4. the laser ignition experimental provision of many sample continuous ignitions according to claim 1, is characterized in that: described baffle plate (15) edge is provided with an opening, and opening is positioned at immediately below laser lens (2), and is positioned at directly over article putting groove (17).
5. the laser ignition experimental provision of many sample continuous ignitions according to claim 1, it is characterized in that: also comprise O-ring seal (5), burning chamber shell (3) is provided with O-ring seal (5) with the joint face of lower box lid (6), lower box lid (6) is provided with O-ring seal (5) with the joint face of lower box (7), and lower box (7) is provided with O-ring seal (5) with the joint face of lower box base plate (9).
6. the laser ignition experimental provision of many sample continuous ignitions according to claim 1, is characterized in that: by filling with sealant sealing in described wire barrel (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483407.9A CN105044274B (en) | 2015-08-03 | 2015-08-03 | The laser ignition experimental provision of many sample continuous ignitions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510483407.9A CN105044274B (en) | 2015-08-03 | 2015-08-03 | The laser ignition experimental provision of many sample continuous ignitions |
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| CN105044274A true CN105044274A (en) | 2015-11-11 |
| CN105044274B CN105044274B (en) | 2016-07-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008062A (en) * | 2017-11-23 | 2018-05-08 | 中国航发北京航空材料研究院 | Laser ignition combustion chamber is used in a kind of titanium fire experiment |
| CN108626028A (en) * | 2018-05-09 | 2018-10-09 | 上海新力动力设备研究所 | The rotation for combining propeller for laser chemistry drives charge constitution |
| CN111141643A (en) * | 2019-12-20 | 2020-05-12 | 南京理工大学 | Combustion chamber of aluminum-containing solid propellant and propellant combustion product collection method |
| CN114687890A (en) * | 2022-04-26 | 2022-07-01 | 常州大学 | High-efficient laser ignition solid fuel combustion device |
-
2015
- 2015-08-03 CN CN201510483407.9A patent/CN105044274B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108008062A (en) * | 2017-11-23 | 2018-05-08 | 中国航发北京航空材料研究院 | Laser ignition combustion chamber is used in a kind of titanium fire experiment |
| CN108626028A (en) * | 2018-05-09 | 2018-10-09 | 上海新力动力设备研究所 | The rotation for combining propeller for laser chemistry drives charge constitution |
| CN111141643A (en) * | 2019-12-20 | 2020-05-12 | 南京理工大学 | Combustion chamber of aluminum-containing solid propellant and propellant combustion product collection method |
| CN114687890A (en) * | 2022-04-26 | 2022-07-01 | 常州大学 | High-efficient laser ignition solid fuel combustion device |
| CN114687890B (en) * | 2022-04-26 | 2023-10-27 | 常州大学 | High-efficient laser ignition solid fuel burner |
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| CN105044274B (en) | 2016-07-06 |
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Granted publication date: 20160706 Termination date: 20180803 |