CN205642784U - Impact experiment vacuum chamber sealing device - Google Patents
Impact experiment vacuum chamber sealing device Download PDFInfo
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- CN205642784U CN205642784U CN201620226516.2U CN201620226516U CN205642784U CN 205642784 U CN205642784 U CN 205642784U CN 201620226516 U CN201620226516 U CN 201620226516U CN 205642784 U CN205642784 U CN 205642784U
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- ereisma
- conduit
- spring guide
- shell
- dish
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Abstract
The utility model provides an impact experiment vacuum chamber sealing device, the one end suit that takes off the ereisma is in the one end of taking off the ereisma pipe, the seal ring and the rotatory inner terminal surface laminating of getting the shell ware of other end terminal surface. Install respectively in each fixation nut in the mounting hole with the spring guide arm at the both ends of each spring guide arm. Each spring difference suit is on each spring guide arm. Thread disc is located the rotatory shell ware of getting, with the rotatory interior screw -thread fit who gets the shell ware. The dish cart face at thread disc is fixed to the one end terminal surface of barrel, and the other end passes the rotatory centre bore of getting on the shell ware end plate and is connected with gas big gun trigger mechanism. The utility model discloses fully considered the characteristics of vacuum striking problem, highly -compressed air does not get into vacuum chamber and the sealed problem of transmission final vacuum case when having solved the transmission of gas big gun, has guaranteed the safety of vacuum chamber and the rotatory impact test's in vacuum normal clear, hits the design for the anti bird of china's engine and provides effectual means, and testing technique is hit to china's engine bird and the engine design level has the significance to improving.
Description
Technical field
The present invention relates to foreign object impact experiment field, specifically one under vacuum state can utilize pressure-air to launch rammer entrance vacuum tank under vacuum conditions, intercepts pressure-air vacuum screened device outside vacuum tank while shock is hit thing.
Background technology
The bird accident of hitting refers to that the aircraft such as the aircraft of airflight bump against, with the birds of flight, the accident occurred.Along with developing rapidly of civil aviation industry, the civil aircraft bird accident of hitting becomes one of the most serious security threat of civil aviation.According to the relevant report display of the United Airlines, Inc of U.S., between nineteen ninety to 2008 year, civil aviaton of the U.S. reports 89727 animals and aircarrier aircraft accidents altogether, wherein 97.4% is caused by flying bird.Relevant data show, the windward side of aircraft, are most to be vulnerable to the position that bird is hit including frontal windshield, radome, electromotor, the leading edge of a wing and empennage leading edge.
Electromotor is the power source of aircraft, is once crashed through bad by bird, and catastrophic failure is just difficult to avoid that.Therefore, solving the anti-bird of electromotor, to hit issue concerns great.Electromotor bird crashes through that bad to be concentrated mainly on fan blade impaired, bird impact tests under resting state cannot meet loaded-up condition during anti-bird impact design, and the bird under rotation status is hit due to the Power Limitation of blade rotation test device, bird impact tests must be carried out in vacuum tank, if bird body enters vacuum tank together with the pressure-air of gas big gun, vacuum tank blast or exerciser can be caused to damage owing to air drag produces overload, therefore must take measures to ensure that the fewest air enters vacuum tank, the present invention is significant for electromotor anti-bird impact design.
It is proposed that a kind of vacuum chamber connecting device used for air cannon in the patent of invention of the patent No. 103673756, this device by arranging sealing ring at separation of the projectile seat device cylinder and separation of the projectile seat device piston comb between cog, bullet torr clamping realize being tightly connected of air bubble and vacuum tank.During experiment, when bullet torr device separated with bullet separates, bullet torr is stuck on separation of the projectile seat device piston, and impulsive force during separation is buffered by hydraulic damping device.The method is in addition to whole device excessively complexity, operationally there is also following shortcomings: owing to buffer unit uses hydraulic damper, therefore do not possess after experiment completes and be easy between hydraulic damper piston and cylinder body that stuck situation occurs under self-return function, and the high-speed impact when separating；In emission process, bullet and bullet torr drive the high pressure gas part of bullet can steam vent on air flow deflector cylinder when entering air flow deflector cylinder, and advanced into vacuum chamber at separation of the projectile seat device piston by the sealing of bullet torr, simultaneously because experimentation typically completes in some milliseconds, vacuum pump cannot realize quickly taking a large amount of compressed-air actuated function away；It addition, after separation of the projectile seat device piston is sealed by bullet torr, drive the large quantity of air of bullet to be blocked in outside vacuum chamber, need long time could be extracted by vacuum pump.
Summary of the invention
For overcoming device deficiency complicated, unhandy present in prior art, the present invention proposes a kind of impact experiment sealing vacuum box device.
The present invention includes that gun tube, screw thread dish, rotation take shell device, seal washer, de-ereisma, spring guide, spring, de-ereisma conduit and locking nut.Wherein: one end of described de-ereisma is sleeved on one end of de-ereisma conduit；Having seal washer at the outer rim of de-ereisma other end end face, this seal washer is fitted with rotating the inner end face taking shell device；The other end of described de-ereisma conduit is fixed with end plate.The described de-ereisma flange with de-ereisma tubes fit one end is evenly equipped with the installing hole of 4 spring guides；The end plate of described de-ereisma conduit is also evenly equipped with 4 fixing nuts, and the centrage of described fixing nut overlaps with the centrage of the installing hole of described spring guide；One end of 4 spring guides is separately mounted in described each fixing nut, and equipped with locking nut on the spring guide of this end；The other end of each spring guide is separately mounted in the installing hole of described spring guide.4 springs are set on each spring guide, between described locking nut and fixing nut.Described screw thread dish is positioned at described rotation and takes shell device, and the external screw thread of described screw thread dish and described rotation take the screw-internal thread fit of shell device.One end end face of described gun tube is fixed on the panel surface of described screw thread dish by flange；The other end of described gun tube takes the centre bore on the end plate of shell device one end through described rotation, is connected with gas big gun trigger mechanism.
Gun tube, screw thread dish, rotate take shell device, de-ereisma, de-ereisma conduit are co-axially mounted.Each spring guide is evenly distributed on around de-ereisma conduit, and makes the axis of this spring guide parallel with the axis of de-ereisma conduit.
The internal diameter of described de-ereisma, slightly larger than the external diameter of de-ereisma conduit, makes to be slidably matched therebetween.One end of described de-ereisma is opening end, is positioned on the ring flange of this opening end the installing hole being evenly equipped with spring guide；The described de-ereisma other end has de-bullet to bore；Take, with rotation, the end face outer rim that shell device coordinates at this de-bullet cone and have the concave surface for installing seal washer.
Described de-bullet cone is made up of cone dish and conehead；Described cone dish is the disk of radially protruding on this de-ereisma end face circumference, and there is axially projecting conehead at the center of this cone dish；The minimum outer diameter on this conehead top is slightly less than the internal diameter of shell case；There is through hole at the center of this conehead, and the internal diameter of this through hole is slightly larger than the external diameter of body.
The internal diameter of described screw thread dish is identical with the internal diameter of gun tube 1.The external peripheral surface of this screw thread dish coordinates trapezoidal thread face for taking shell device inwall with rotation.It is evenly equipped with the installing hole of gun tube on one surface of described screw thread dish, at the outer rim on this surface, has the mounting groove of sealing ring.
It is uncovered that described rotation takes one end of shell device, and the other end has end plate.It is identical with the minimum diameter of the concave surface installing seal washer on de-ereisma that described rotation takes the internal diameter of shell device opening end, and it is identical with the maximum gauge of described concave surface that described rotation takes the external diameter of shell device opening end.There is through hole at the center of the end plate that described rotation takes shell device, and the aperture of this through hole is slightly larger than the external diameter of gun tube end flange dish.
Described spring guide is TBE (threaded both ends) steel pole, and wherein one end is threadedly secured on the end plate of de-ereisma conduit, and the other end penetrates in the spring guide installing hole on de-ereisma ring flange.
There is end plate one end of described de-ereisma conduit, and the other end is opening end.The external diameter of described de-ereisma conduit is identical with de-ereisma internal diameter, and makes can be slidably matched therebetween；The internal diameter of described de-ereisma conduit is identical with shell case internal diameter.It is machined with annular seal groove at two at this de-ereisma conduit near the circumferential surface of opening end, is used for conduit sealing ring is installed.
In order to ensure the test of foreign object strike under vacuum state smooth, efficiently carry out, the present invention provides foreign object impact experiment sealing vacuum box device under the vacuum state that a kind of simple in construction, reliability are high.
The present invention utilizes under the vacuum state pressure-air to launch rammer, clash in vacuum tank when being hit thing, intercept and drive the pressure-air of rammer outside vacuum tank, it is achieved the sealing to vacuum tank.
During test, gases at high pressure promote body and shell case to accelerate to travel forward, when body and shell case arrive de-ereisma from gun tube, shell case promotes de-ereisma compression spring to continue motion, and now shell case produces plastic deformation, and seals de-ereisma, gases at high pressure take from de-ereisma and rotation and directly release air between shell device, thus the gases at high pressure in avoiding gun tube enter exerciser vacuum tank, body then enters vacuum tank bump test part, completes vacuum rotating bump test.
The present invention has taken into full account the feature of vacuum Impact Problems, solves pressure-air when gas big gun is launched and does not enter vacuum tank and launch final vacuum case sealing problem, it is ensured that the safety of vacuum tank and being normally carried out of vacuum rotating bump test.
1. it can be avoided that the gases at high pressure launching body enter vacuum tank, thus avoid vacuum tank blast or the danger driving the motor overload of engine rotor to burn；
2. utilize plastic deformation and the air of shell case, shell case is enclosed on de-ereisma, it is ensured that it does not falls off；
3. utilize spring as buffer unit, the self-return after experiment can be realized；
4. rotate and take that shell device is simple to operate, take shell side just.
During aero-engine is on active service, foreign object inhalation injury is the problem must taken seriously in civil engine design.Electromotor sucks various exotics, causes the blade of electromotor may sustain damage because exotic clashes into during such as flying bird, stone, sand grains, bolt or rivet etc..Wherein, the harm of bird collisions is maximum.The present invention makes bird impact tests under engine blower blade rotation status be achieved, and provides effective means for China's electromotor anti-bird impact design, significant for improving China's electromotor bird impact tests technology and electromotor design level.
Accompanying drawing explanation
Fig. 1 a is the front view of present configuration schematic diagram, and Fig. 1 b is the top view of present configuration schematic diagram.
Fig. 2 is that after body is launched, shell case deformable seal and driving body pressure-air release schematic diagram.In figure:
1. gun tube；2. screw thread dish；3. rotate and take shell device；4. seal washer；5. take off ereisma；6. spring guide；7. spring；8. take off ereisma conduit；9. locking nut；10. conduit sealing ring；11. screw thread dish sealing rings；12. bodies；13. shell cases；14. take off bullet cone.
Detailed description of the invention
The present embodiment is foreign object impact experiment sealing vacuum box device under a kind of vacuum state, pressure-air is utilized to launch rammer under vacuum state, clash in vacuum tank when being hit thing, intercept and drive the pressure-air of rammer outside vacuum tank, it is achieved the sealing to vacuum tank.
The present embodiment includes that gun tube 1, screw thread dish 2, rotation take shell device 3, seal washer 4, de-ereisma 5, spring guide 6, spring 7, de-ereisma conduit 8 and locking nut 9.Wherein: one end of described de-ereisma 5 is sleeved on one end of de-ereisma conduit 8, and is sealed by conduit sealing ring 10；Having seal washer 4 at the outer rim of de-ereisma 5 other end end face, this seal washer 4 is fitted with rotating the inner end face taking shell device 3；The other end of described de-ereisma conduit 8 is fixed with end plate.Coordinate the external peripheral surface of one end to have the flange of radially protruding at described de-ereisma 5 with de-ereisma conduit 8, this flange is evenly equipped with the installing hole of 4 spring guides；The end plate of described de-ereisma conduit is also evenly equipped with 4 fixing nuts, and the centrage of described fixing nut overlaps with the centrage of the installing hole of described spring guide；One end of 4 spring guides 6 is separately mounted in described each fixing nut, and equipped with locking nut 9 on the spring guide of this end；The other end of each spring guide is separately mounted in the installing hole of described spring guide, and is fastened by nut.4 springs 7 are set on each spring guide, between described locking nut 9 and fixing nut.Described screw thread dish 2 is positioned at described rotation and takes shell device 3, and the external screw thread of described screw thread dish 2 and described rotation take the screw-internal thread fit of shell device 3.One end end face of described gun tube 1 is fixed on the panel surface of described screw thread dish by flange；The other end of described gun tube 1 takes the centre bore on the end plate of shell device 3 one end through described rotation, is connected with gas big gun trigger mechanism.
Described de-ereisma 5 is thin-wall barrel；Being ring flange in this de-ereisma one end, the other end is de-bullet cone 14.The internal diameter of described de-ereisma, slightly larger than the external diameter of de-ereisma conduit 8, makes to be slidably matched therebetween.One end of described de-ereisma is opening end, is positioned on the ring flange of this opening end the installing hole being evenly equipped with spring guide.Described de-bullet cone is made up of cone dish and conehead；Described cone dish is the disk of radially protruding on this de-ereisma end face circumference, and there is axially projecting conehead at the center of this cone dish；The minimum outer diameter on this conehead top is slightly less than the internal diameter of shell case；There is through hole at the center of this conehead, and the internal diameter of this through hole is slightly larger than the external diameter of body.The external diameter of de-bullet cone cone dish is slightly larger than or equal to the external diameter rotating sheller；Take off bullet cone at this end to take, with rotation, the end face outer rim that shell device 3 coordinates and have ring-type concave surface, be used for sealing gasket 4 is installed.Having axially projecting round boss, the external peripheral surface of described round boss at the center of this end flanges dish is the conical surface, defines the conehead of de-bullet cone.
Described screw thread dish 2 is annular slab.The internal diameter of this screw thread dish is identical with the internal diameter of gun tube 1.The external peripheral surface of this screw thread dish coordinates trapezoidal thread face for taking shell device 3 inwall with rotation.It is evenly equipped with the installing hole of gun tube 1 on one surface of described screw thread dish, at the outer rim on this surface, has the mounting groove of sealing ring.
Described rotation takes shell device 3 for cylindrical shape.It is uncovered that this rotation takes one end of shell device, and the other end has end plate.It is identical with the minimum diameter of the concave surface installing seal washer on de-ereisma 5 that described rotation takes the internal diameter of shell device opening end, and it is identical with the maximum gauge of described concave surface that described rotation takes the external diameter of shell device opening end.There is through hole at the center of the end plate that described rotation takes shell device, and the aperture of this through hole is slightly larger than the external diameter of gun tube end flange dish.
Described seal washer 4 is annular big thickness rubber washer, and its external diameter takes the external diameter of shell device 3 opening thin wall cylinder not less than rotating, and internal diameter is not more than the internal diameter rotating the thin wall cylinder taking shell device 3 opening.
Described spring guide 6 has 4, is TBE (threaded both ends) steel pole, and wherein one end is threadedly secured on the end plate of de-ereisma conduit, and the other end penetrates in the spring guide installing hole on de-ereisma 5 ring flange.Each spring guide is respectively installed with spring 7, by this spring, takes the sealing between shell device 3 for de-ereisma 5 and rotation before the test and pressure is provided, compress further during test, make de-ereisma 5 and rotation take generation gap between shell device 3, release gun tube inner high voltage air, and buffer shell case impulsive force.
Described de-ereisma conduit 8 is thin-walled tubular.Having end plate in one end of this de-ereisma conduit, the other end is opening end.The external diameter of described de-ereisma conduit is identical with de-ereisma 5 internal diameter, and makes can be slidably matched therebetween；The internal diameter of described de-ereisma conduit is identical with shell case 13 internal diameter.It is machined with annular seal groove at two at this de-ereisma conduit 8 near the circumferential surface of opening end, is used for conduit sealing ring 10 is installed.
Described locking nut 9 is contained on spring guide 6, takes the seal pressure between shell device 3 for regulating de-ereisma 5 and rotation.
Shell case 13 is the plasticity preferable sealed bottom barrel-shaped parts of thin-wall aluminum alloy, and during test, shell case produces bigger plastic deformation, adds under the effect of air outside, can tightly seal de-ereisma, prevents pressure-air from entering vacuum tank.
Gun tube 1, screw thread dish 2, rotate take shell device 3, de-ereisma 5, de-ereisma conduit 8 are co-axially mounted.Four spring guides 6 are evenly distributed on de-ereisma conduit 8 around, and make the axis of this spring guide and the axially in parallel of de-ereisma conduit.
As illustrated in figs. ia and ib.During assembling, first rotation sheller 3 is sleeved on gun tube ring flange, then screw thread dish 2 is coaxially mounted on described gun tube ring flange by bolt.Sealing ring 12 is installed in screw thread dish 2 relevant position.Then de-ereisma conduit 8 is installed the correspondence position to exerciser vacuum tank by bolt, it is ensured that de-ereisma conduit 8 is concentric with gun tube.Each locking nut 9 is mounted respectively on spring guide.Four spring guides 6 are uniformly installed the correspondence position to de-ereisma conduit 8 again, and spring 7 is installed on spring guide 6.De-ereisma conduit 8 is installed sealing ring 10.De-ereisma 5 is enclosed within de-ereisma conduit 8, and makes each spring guide 7 all load in the spring guide installing hole on this de-ereisma and be fastened by nut.Seal washer 4 is installed to de-ereisma 5.
Before test, rotating and take shell device 3, sealed with screw thread dish 2 by sealing ring 12, sealed with de-ereisma 5 by seal washer 4, by locking nut 9 and spring 7 regulating sealing pressure, de-ereisma 5 is sealed by sealing ring 10 with de-ereisma conduit 8.Now, each several part position relationship is as shown in Figure 2.Together with gun tube 1 evacuation during evacuation.
During test, gases at high pressure promote body 12 and shell case 12 accelerated motion, when body 12 and shell case 12 arrive de-ereisma 5 from gun tube 1, shell case promotes de-ereisma 5 compression spring 7 to move, and now shell case 12 produces plastic deformation, and seals de-ereisma 5, gases at high pressure take from de-ereisma 5 and rotation and are directly leaked to air between shell device 3, thus avoid the gases at high pressure in gun tube 1 to enter vacuum tank, body then enters vacuum tank bump test part, completes vacuum rotating bump test.Now, each several part position relationship is as shown in Figure 2.
Test backward right rotation and take shell device 3, take out the shell case 12 of deformation, be ready for testing next time.
Claims (7)
1. an impact experiment sealing vacuum box device, it is characterised in that include gun tube, screw thread dish, rotate and take shell device, close
Seal washer, de-ereisma, spring guide, spring, de-ereisma conduit and locking nut；Wherein: described de-ereisma
One end is sleeved on one end of de-ereisma conduit；Seal washer is had, this sealing gasket at the outer rim of de-ereisma other end end face
Circle is fitted with rotating the inner end face taking shell device；The other end of described de-ereisma conduit is fixed with end plate；Described de-
The installing hole of 4 spring guides it is evenly equipped with on the flange of ereisma and de-ereisma tubes fit one end；At described de-ereisma
Also 4 fixing nuts it are evenly equipped with on the end plate of conduit, and the centrage of described fixing nut and described spring guide
Installing hole centrage overlap；One end of 4 spring guides is separately mounted in described each fixing nut, and
Equipped with locking nut on the spring guide of this end；The other end of each spring guide is separately mounted to described spring guide
In installing hole；4 springs are set on each spring guide, between described locking nut and fixing nut；
Described screw thread dish is positioned at described rotation and takes shell device, and the external screw thread of described screw thread dish and described rotation take the interior spiral shell of shell device
Stricture of vagina coordinates；One end end face of described gun tube is fixed on the panel surface of described screw thread dish by flange；Described gun tube another
One end takes the centre bore on the end plate of shell device one end through described rotation, is connected with gas big gun trigger mechanism；
Gun tube, screw thread dish, rotate take shell device, de-ereisma, de-ereisma conduit are co-axially mounted；Each spring guide is uniformly distributed
Around de-ereisma conduit, and make the axis of this spring guide parallel with the axis of de-ereisma conduit.
2. impact experiment sealing vacuum box device as claimed in claim 1, it is characterised in that the internal diameter of described de-ereisma is bigger
In the external diameter of de-ereisma conduit, make to be slidably matched therebetween；One end of described de-ereisma is opening end, is positioned at this
The installing hole of spring guide it is evenly equipped with on the ring flange of opening end；The described de-ereisma other end has de-bullet to bore；Take off at this
Bullet cone takes, with rotation, the end face outer rim that shell device coordinates the concave surface for installing seal washer.
3. impact experiment sealing vacuum box device as claimed in claim 2, it is characterised in that described de-bullet is bored by cone dish and cone
Head composition；Described cone dish is the disk of radially protruding on this de-ereisma end face circumference, and there is axle at the center of this cone dish
To the conehead protruded；The minimum outer diameter on this conehead top is slightly less than the internal diameter of shell case；There is through hole at the center of this conehead,
The internal diameter of this through hole is slightly larger than the external diameter of body.
4. impact experiment sealing vacuum box device as claimed in claim 1, it is characterised in that the internal diameter of described screw thread dish and big gun
The internal diameter of pipe 1 is identical；The external peripheral surface of this screw thread dish coordinates trapezoidal thread face for taking shell device inwall with rotation；?
One surface of described screw thread dish is evenly equipped with the installing hole of gun tube, has the mounting groove of sealing ring at the outer rim on this surface.
5. impact experiment sealing vacuum box device as claimed in claim 1, it is characterised in that described rotation takes one end of shell device
For uncovered, the other end has end plate；Described rotation takes internal diameter and the installation seal washer on de-ereisma of shell device opening end
The minimum diameter of concave surface identical, described rotation takes the external diameter of shell device opening end and the maximum gauge of described concave surface
Identical；There is through hole at the center of the end plate that described rotation takes shell device, and the aperture of this through hole is slightly larger than gun tube end flange dish
External diameter.
6. impact experiment sealing vacuum box device as claimed in claim 1, it is characterised in that described spring guide is two ends
Threaded steel pole, wherein one end is threadedly secured on the end plate of de-ereisma conduit, and the other end penetrates de-ereisma method
In spring guide installing hole on blue dish.
7. impact experiment sealing vacuum box device as claimed in claim 1, it is characterised in that one end of described de-ereisma conduit
Having end plate, the other end is opening end；The external diameter of described de-ereisma conduit is identical with de-ereisma internal diameter, and makes the two it
Between can be slidably matched；The internal diameter of described de-ereisma conduit is identical with shell case internal diameter；At this de-ereisma conduit near spacious
The circumferential surface of mouth end is machined with annular seal groove at two, is used for installing conduit sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226516.2U CN205642784U (en) | 2016-03-23 | 2016-03-23 | Impact experiment vacuum chamber sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226516.2U CN205642784U (en) | 2016-03-23 | 2016-03-23 | Impact experiment vacuum chamber sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642784U true CN205642784U (en) | 2016-10-12 |
Family
ID=57075162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620226516.2U Withdrawn - After Issue CN205642784U (en) | 2016-03-23 | 2016-03-23 | Impact experiment vacuum chamber sealing device |
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| CN (1) | CN205642784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823614A (en) * | 2016-03-23 | 2016-08-03 | 西北工业大学 | Foreign object impact experiment vacuum chamber sealing device under vacuum state |
-
2016
- 2016-03-23 CN CN201620226516.2U patent/CN205642784U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823614A (en) * | 2016-03-23 | 2016-08-03 | 西北工业大学 | Foreign object impact experiment vacuum chamber sealing device under vacuum state |
| CN105823614B (en) * | 2016-03-23 | 2018-04-17 | 西北工业大学 | Foreign object impact tests sealing vacuum box device under a kind of vacuum state |
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Granted publication date: 20161012 Effective date of abandoning: 20180417 |
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| AV01 | Patent right actively abandoned |