CN106404333B - Gas launches traction device - Google Patents
Gas launches traction device Download PDFInfo
- Publication number
- CN106404333B CN106404333B CN201611105374.5A CN201611105374A CN106404333B CN 106404333 B CN106404333 B CN 106404333B CN 201611105374 A CN201611105374 A CN 201611105374A CN 106404333 B CN106404333 B CN 106404333B
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- cylinder
- piston
- guide rail
- wirerope
- gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/08—Shock-testing
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention discloses a kind of gas ejection traction device, it includes air supply unit, piston-cylinder unit, traction unit, buffer and playback mechanism, piston-cylinder unit includes cylinder, piston and exhaust cabin, air supply unit is connected to the leading portion of cylinder, to be supplied between cylinder front wall and piston, the middle section of cylinder is provided with exhaust cabin, air discharge duct is provided on the cylinder wall in exhaust cabin, the rear end of cylinder is provided with bumper, traction unit includes directive wheel, wirerope, guide rail and coaster, guide rail and cylinder are arranged side by side, one end of wirerope is connected via the front end of seal section and piston, wirerope is after directive wheel is oriented to, its other end is connected with the coaster being configured on guide rail, buffer is provided with below the end of guide rail, playback mechanism is provided with below the front end of guide rail.The compressed air pressure that the present invention uses can freely be adjusted according to testpieces speed requirement, and the precision of test is improved.
Description
Technical field
The present invention relates to a kind of gases to launch traction device, especially for missile launch test or the dress of impact test
It sets.
Background technique
Guided missile is known as launching using the mode that additionaling power mode emits.The device for providing additionaling power for MISSILE LAUNCHING claims
For catapult-launching gear, catapult-launching gear is the key that guided missile succeeds in sending up, and for catapult-launching gear, has carried out largely grinding both at home and abroad to it
Study carefully, many catapult-launching gears have also been developed, the advanced catapult-launching gear AMELT of US military development is successfully applied to F-102 aircraft hair
" falcon " guided missile is penetrated, frazier Na Shi company, Britain also has developed similar catapult-launching gear.The LAU-142/ that EDO company, the U.S. develops
A Pneumatic ejection mechanism is provided in F-22 aircraft transmitting " AIM-120AMRAAM " guided missile.Domestic Qing'an Group Co., Ltd. and absolutely empty
The units such as missile research institute also gradually have developed certain model missile ejector.And with the development of scientific and technological level, it is existing
Catapult-launching gear has been unable to meet current demand, such as ejection speed, existing catapult-launching gear speed about 10m/s, and newest technology
It is required that being 100m/s, since guided missile model is numerous, required catapult-launching gear is also very much, and development catapult-launching gear itself also faces many
Problem, existing experimental study means only have live ammunition, and this mode is at high cost, test uncertain factor is more, examination
Test repeatability it is poor, test accuracy is low the features such as, mating model development time and quality all cannot be guaranteed, and do not adapt to through
Ji, reliable, accurately requirement.
Summary of the invention
Present invention solves the technical problem that being: overcome the deficiencies of the prior art and provide a kind of economic, environmental protection, it is low it is dangerous,
The high gas of test accuracy launches traction device, the experimental study for body ejection mechanism.
Gas ejection traction device of the invention includes air supply unit, piston-cylinder unit, traction unit, buffer and playback machine
Structure, the piston-cylinder unit include cylinder, piston and exhaust cabin, and the air supply unit is connected to the leading portion of the cylinder, to
It is supplied between cylinder front wall and piston, the middle section of the cylinder is provided with exhaust cabin, on the cylinder wall in the exhaust cabin
Be provided with air discharge duct, the rear end of the cylinder is provided with bumper, and the traction unit includes directive wheel, wirerope, guide rail and
Coaster, the guide rail and the cylinder are arranged side by side, and one end of the wirerope connects via the front end of seal section and the piston
It connects, after directive wheel is oriented to, the other end is connected the wirerope with the coaster being configured on the guide rail, and the coaster is used
To place testpieces, it is provided with buffer below the end of the guide rail, is provided with the playback below the front end of the guide rail
Mechanism.
It is preferred that being each configured with LD laser and timer in the two sides in the closed slide middle section.
It is preferred that the front end of the piston is provided with acceleration transducer.
It is preferred that the guide rail is closed slide, 70mm~1000mm is may be selected in its spacing.
The present invention has the beneficial effect that compared with prior art
1, the present invention replaces existing live ammunition as power source using compressed air, reduces the cost of test,
And test is pollution-free, greatly reduces the risk of test；
2, the closed slide that the present invention uses can flexibly be chosen using spacing within the scope of 70mm~1000mm, existing reality
It plays a kind of size of emission test and corresponds to a kind of bullet and compare, substantially increase test efficiency；
3, the compressed air pressure that the present invention uses can freely be adjusted according to testpieces speed requirement, be sent out with existing live shell
It penetrates test to compare, the precision of test is improved, tests and uncertain is also minimized.
Detailed description of the invention
Attached drawing 1 is system theory of constitution figure of the invention；
Attached drawing 2 is cylinder inner trajectory motion principle figure of the invention；
Attached drawing 3 is high speed tachometric survey schematic diagram of the invention.
Specific embodiment
Below according to attached drawing, the present invention is described in detail, defines front and back in text with the testpieces direction of motion.
As shown in Figure 1, gas ejection traction device of the present invention is by intake valve 1, gas cylinder 2, gas bleeder valve 3, pressure gauge 4, safety
Valve 5, stop valve 6, seal section 7, group section 8, acceleration transducer 9, piston 10, cylinder 11, exhaust cabin 12, air discharge duct 13, row
Air valve 14, bumper 15, directive wheel 16, wirerope 17, closed slide 18, hydraulic bjuffer 19, LD laser 20, timer
21, the composition such as sliding machine 22, testpieces 23, playback mechanism 24.Gas source enters gas cylinder 2 by intake valve 1, installs on gas cylinder 2
Have gas bleeder valve 3, pressure gauge 4 and a safety valve 5, stop valve 6 be installed after gas cylinder 1, group section 8 is installed after stop valve 6, group section 8 with
Cylinder 11 connects, and to supply between cylinder front wall and piston, 11 front end of cylinder is connect with seal section 7,11 middle section wall of cylinder
Face is provided with air discharge duct 13, and 11 rear end of cylinder is equipped with bumper 15, and 11 middle section of cylinder comprising air discharge duct 13 integrally covers in exhaust
Cabin 12,10 front end of piston are equipped with acceleration transducer 9, and 10 front end of piston is connect with 17 one end of wirerope, and wirerope 17 is another
End is connect with sliding machine 22, and testpieces 23 is placed in 22 top of sliding machine, and 17 middle section of wirerope passes through 16 turns of pulley
To sliding machine 22 is configured on closed slide 18, and the guide rail of spacing 70mm~1000mm can be used in closed slide, by mating
Sliding machine 22 with the size of adequacy test part, the mechanism 24 that playbacks is located at 18 rear end of closed slide lower section, hydraulic bjuffer 19
Below 18 front end of closed slide, LD laser 20 is located at the side in 18 middle section of closed slide, timer 21 and LD laser
The 20 corresponding other sides for being mounted on closed slide 18.Gas cylinder 2 is first inflated from air compressor machine to it, reaches corresponding with test speed demand
Predetermined pressure after stop inflation, open stop valve 6, compressed air instantaneous expansion simultaneously push 10 haulage cable 17 of piston transport
Dynamic, the sliding machine 22 and testpieces 23 connecting with 17 other end of wirerope are also moved along closed slide 18 together, when piston 10
Compressed air enters exhaust cabin 12 through air discharge duct 13 and is discharged when moving at 11 middle section air discharge duct 13 of cylinder, and piston 10 continues edge
Simultaneously 11 back segment gas of compression cylinder slows down the movement of cylinder 11, while sliding machine 22 collides and slows down with hydraulic bjuffer 19
Until stopping, at the same time, testpieces 23 is separated with sliding machine 22, and separate acceleration and speed are respectively by before piston 10
Acceleration transducer 9 and LD laser 20 and timer 21 measurement at end provide result.Testpieces 23 separates and obtains demand speed
Impact test is carried out after degree, is substantially carried out the braking development test of body ejection mechanism.Starting playback mechanism 24 after the completion of test,
Piston 10 and sliding machine 22 are returned to initial position by the mechanism 24 that playbacks.
The compressed air that the present invention uses is as power source, and the present invention is according to test Demand Design cylinder 11 and piston 10
And the equal important components of wirerope 17, the size of 11 internal diameter of cylinder is the key factor for influencing piston 10 and moving, in other condition phases
Under the same conditions with especially bleed pressure and travel condition, the bigger attainable speed of the movement of piston 10 institute of 11 bore of cylinder
Bigger, reason is that 11 internal diameter of cylinder is bigger, and 10 stress surface of piston is bigger, and 10 acceleration of motion of piston is bigger, similarly, other
Condition is especially muzzle velocity under the same conditions and requires under the same conditions, and heavy caliber cylinder 11 requires to be lower than to bleed pressure
Therefore small-bore cylinder 11 selects biggish 11 bore of cylinder to be conducive to improve 10 movement velocity of piston.
It is required according to experimental performance, for 23 mass of testpieces between 10kg~50kg, speed maximum reaches 80m/s, accelerates
And deceleration distance is 2.5m, it is contemplated that the requirement of test atmospheric pressure and test trip takes into account pressure regulation convenience, and combines state
Interior deep hole processing gun tube ability and economic factor determine that 11 internal diameter of cylinder is selected as 400mm, determine that gas source is selected in 8MPa and calm the anger
Source.
The relationship of speed and remaining each physical quantity when piston motion is given below at L.As shown in Fig. 2, 2 volume of gas cylinder
For V1, pressure is P1, temperature T1,10 left gas of piston when piston 10 moves at x in gas cylinder 2 before 10 setting in motion of piston
Pressure is Px, temperature Tx, volume Vx.10 mass of piston is m, and 11 overall length of cylinder is L, and cylinder inner cylinder effective sectional area is A.
Gaseous mass is mg, can be acquired according to the equation of gas state
Loss caused by gas expansion and piston motion process is equivalent to 10 mass incremental of piston, coefficient ε,K value is 1.0~1.1.
By polytropic gas Principle of Process, gas expansion process equation is P1V1γ=PxVxγ
It can be obtained according to newton second theoremWherein
It willBringing above formula into can obtain
Above formula integral can be obtained:
It can be seen that 2 initial pressure of speed and gas cylinder, 2 internal diameter of cylinder, gas composition, 2 original volume of gas cylinder, acceleration row
Journey etc. is related, secondly it is 2 volume of gas cylinder that maximum determinant, which is 2 internal diameter of cylinder, 2 initial pressure of gas cylinder and accelerating travel,
In the case that catapult-launching gear determines, adjusting 2 initial pressure of gas cylinder may be implemented the trystate of friction speed demand, with existing reality
The gunpowder filling for playing emission test is compared, and the precision of test, which is improved, test uncertainty is also minimized.
Due to the key index that 23 separating rate of testpieces is ejection mechanism braking research, it is desirable that speed precise measurement is
This, the present invention uses laser type velocimetry, stops its light when testpieces 23 moves at the first beam LD laser 20, test the speed dress
Sending pulse is set, left side timer 21 recorded for the first moment, and testpieces 23, which moves at the second beam LD laser 20, stops its light
Line, speed measuring device issue the second subpulse, and right side timer 21 recorded for the second moment, and the spacing between two-beam road is definite value d,
The difference Δ t at two moment is the time, then can acquire separating rate
The present apparatus is supplied via intake valve to gas cylinder by gas source, after reaching predetermined pressure corresponding with test speed demand
Stop inflation, open stop valve, compressed air instantaneous expansion simultaneously pushes piston haulage cable to move, connects with the wirerope other end
The sliding machine and testpieces connect is also moved along closed slide together, is compressed when piston motion is at the air discharge duct of cylinder middle section empty
Gas enters exhaust cabin through air discharge duct and is discharged, and piston continues along cylinder moving and compression cylinder back segment gas slows down, simultaneously
Sliding machine and hydraulic bjuffer collide and slow down until stopping, and at the same time, testpieces is separated with sliding machine, and separation accelerates
Degree and speed provide result with LD laser and timer measurement by the acceleration transducer for being located at piston nose respectively.Testpieces
It separates and carries out impact test after obtaining demand speed, be substantially carried out the braking development test of body ejection mechanism.Test is completed
Piston and sliding machine are returned to initial position by hydraulic-driven lead screw by starting playback mechanism, the mechanism that playbacks afterwards.
Claims (4)
1. a kind of gas launches traction device, it is characterised in that: including air supply unit, piston-cylinder unit, traction unit, buffer and
Playback mechanism, and the piston-cylinder unit includes cylinder, piston and exhaust cabin, and the air supply unit is connected to the leading portion of the cylinder,
To supply between cylinder front wall and piston, the middle section of the cylinder is provided with exhaust cabin, the gas in the exhaust cabin
It is provided with air discharge duct on casing wall, the rear end of the cylinder is provided with bumper, and the traction unit includes directive wheel, wirerope,
Guide rail and coaster, the guide rail and the cylinder are arranged side by side, and one end of the wirerope is via seal section and the piston
Front end connection, after directive wheel is oriented to, the other end is connected the wirerope with the coaster being configured on the guide rail, described
Coaster is provided with buffer, is arranged below the front end of the guide rail to place testpieces below the end of the guide rail
State playback mechanism.
2. gas according to claim 1 launches traction device, it is characterised in that: distinguish in the two sides in the guide rail middle section
Configured with LD laser and timer.
3. gas according to claim 1 launches traction device, it is characterised in that: the front end of the piston is provided with acceleration
Spend sensor.
4. gas according to claim 1 launches traction device, it is characterised in that: the guide rail is closed slide, therebetween
Away from optional 70mm~1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105374.5A CN106404333B (en) | 2016-12-05 | 2016-12-05 | Gas launches traction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611105374.5A CN106404333B (en) | 2016-12-05 | 2016-12-05 | Gas launches traction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106404333A CN106404333A (en) | 2017-02-15 |
| CN106404333B true CN106404333B (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611105374.5A Active CN106404333B (en) | 2016-12-05 | 2016-12-05 | Gas launches traction device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631850B (en) * | 2017-11-02 | 2019-03-08 | 西南交通大学 | A kind of high pressure gas ejection crash device |
| CN108087495B (en) * | 2017-12-04 | 2019-06-11 | 深圳市富临特科技有限公司 | A kind of controllable type bindiny mechanism between traction drive and traction element |
| CN107957220B (en) * | 2017-12-11 | 2024-05-31 | 中国航天空气动力技术研究院 | Emission test system |
| CN107915181B (en) * | 2017-12-11 | 2024-05-03 | 中国航天空气动力技术研究院 | Traction mechanism |
| CN111272412B (en) * | 2020-03-23 | 2022-02-22 | 北京昊鹏智能技术有限公司 | Fault detection method, device, equipment and storage medium of electric control pneumatic equipment |
| CN111409861A (en) * | 2020-04-30 | 2020-07-14 | 中国飞机强度研究所 | Unmanned aerial vehicle horizontal impact test device and method |
| CN112161531B (en) * | 2020-08-06 | 2022-11-25 | 北京振华领创科技有限公司 | Guided missile simulated launching device |
| CN113267309B (en) * | 2021-04-29 | 2022-07-08 | 中国工程物理研究院总体工程研究所 | Short-distance acceleration and short-distance braking heavy load impact test device |
| CN114878131B (en) * | 2022-07-11 | 2022-09-27 | 江苏金秋竹集团有限公司 | Protective door impact test device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206470035U (en) * | 2016-12-05 | 2017-09-05 | 中国航天空气动力技术研究院 | Gas launches draw-gear |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2050637U (en) * | 1989-06-28 | 1990-01-03 | 中国人民解放军空军电讯工程学院应用技术研究所 | Pneumatic ejection mechanism |
| CN2166086Y (en) * | 1992-08-03 | 1994-05-25 | 叶海 | Combustion-gas catapult |
| KR100629930B1 (en) * | 2004-07-30 | 2006-09-29 | 국방과학연구소 | Missile ejection launching system |
| CN101823561A (en) * | 2009-03-02 | 2010-09-08 | 马栋栋 | Aircraft carrier ejector |
| CN102152856B (en) * | 2010-12-31 | 2014-04-16 | 朱惠芬 | Pneumatic ejector for carrier-based airplanes of airplane carrier |
| CN102530261B (en) * | 2011-12-09 | 2014-03-19 | 刘真 | Launching return linkage type high-power aircraft carrier catapult |
| CN105605976B (en) * | 2015-12-21 | 2017-06-27 | 北京航天益森风洞工程技术有限公司 | Gas catapult-launching gear |
-
2016
- 2016-12-05 CN CN201611105374.5A patent/CN106404333B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206470035U (en) * | 2016-12-05 | 2017-09-05 | 中国航天空气动力技术研究院 | Gas launches draw-gear |
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| CN106404333A (en) | 2017-02-15 |
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