CN111766074A - Bullet-removing device and gas gun launching mechanism with same - Google Patents
Bullet-removing device and gas gun launching mechanism with same Download PDFInfo
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- CN111766074A CN111766074A CN202010663944.2A CN202010663944A CN111766074A CN 111766074 A CN111766074 A CN 111766074A CN 202010663944 A CN202010663944 A CN 202010663944A CN 111766074 A CN111766074 A CN 111766074A
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- projectile
- cylinder
- barrel
- removing device
- shell
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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
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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Abstract
The application belongs to the technical field of the design of bullet taking off in hail swallowing test of aircraft engines, and in particular relates to a bullet taking off device, which comprises: the ice hockey gun comprises a shell removing barrel, an ice hockey stick and an ice hockey stick, wherein the shell removing barrel is used for accommodating ice hockey and is arranged in an air cannon barrel so as to be pushed to move towards the outlet direction of the air cannon barrel; and the retainer ring is arranged at the outlet of the air cannon barrel to prevent the shell-removing barrel from being removed from the air cannon barrel and allow the ice ball in the shell-removing barrel to fly out. In addition, the invention relates to a gas gun launching mechanism, which comprises a gas gun tube and the shell removing device, wherein the shell removing cylinder is arranged in the gas gun tube; the retainer ring is arranged at the outlet of the gas gun tube.
Description
Technical Field
The application belongs to the technical field of aviation engine hail swallowing test bomb-removing design, and particularly relates to a bomb-removing device and an air gun launching mechanism with the same.
Background
Particles such as raindrops, dust, hail and the like exist in the atmosphere, the existence of the particles causes great threat to the safe flight of the airplane, especially, the impact of the hail on the airplane aeroengine is easy to cause catastrophic accidents, in order to ensure the safety of the airplane flight, the airplane needs to be subjected to an aeroengine hail swallowing test in the airplane design process, and the anti-hail particle impact performance of the aeroengine is verified.
The hail-swallowing test of the aero-engine is carried out, the whole aero-engine is designed to normally run on a rack, and the air gun launching mechanism launches ice balls with different quantities and sizes to the aero-engine so as to simulate the impact of hail particles on the aero-engine, and therefore the hail particle impact resistance of the aero-engine is verified.
The existing air cannon launching mechanism comprises an air cannon tube and a shell removing device, wherein the air cannon tube is used for providing power for an ice hockey and launching the ice hockey at a certain speed; the ball-removing device is a protective device of the ice hockey and is used for ensuring the integrity of the ice hockey in the launching process.
At present, the bullet device that takes off comprises two hemisphere shells of plastics material mostly, these two hemisphere shells dock with the connecting rod and form a spheroid in connection or the bonding form, set up a bleeder vent on this spheroid, when carrying out aeroengine hail gulp test, this spheroid cladding puck is arranged in the air gun pipe, the puck that is rather than cladding is launched with certain speed in the air gun pipe together, the air gets into it from the bleeder vent in, make its fracture be two hemisphere shells, make the puck that coats in it expose, because the difference of material, puck and two hemisphere shell separation, the puck breaks away from two hemisphere shell striking aeroengines promptly, this kind of technical scheme has following defect at least:
1) the ice hockey is separated from the two hemispherical shells according to the difference of the materials, and the plastic hemispherical shells bear load and are easy to deform and absorb energy, so that certain uncertainty is brought to the speed of the ice hockey wrapped in the plastic hemispherical shells;
2) in the process of separating the ice hockey from the two hemispherical shells, certain deviation is brought to the speed of the ice hockey under the influence of aerodynamic factors;
3) based on the two reasons, the impact speed of the aeroengine after the ice ball is separated from the two hemispherical shells is difficult to exceed 100m/s, and the requirement of 150m/s in a hail-swallowing test of the aeroengine is difficult to meet;
4) when the aero-engine runs, the front end of the air inlet channel has large suction force, two hemispherical shells separated from an ice ball are sucked easily, secondary swallowing is generated, and adverse effects are generated on test results.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.
Disclosure of Invention
The present application is directed to a projectile releasing device and a firing mechanism of an air cannon having the same, which overcome or alleviate at least one of the technical disadvantages of the prior art.
The technical scheme of the application is as follows:
a depilling device comprising:
the ice hockey gun comprises a shell removing barrel, an ice hockey stick and an ice hockey stick, wherein the shell removing barrel is used for accommodating ice hockey and is arranged in an air cannon barrel so as to be pushed to move towards the outlet direction of the air cannon barrel;
and the retainer ring is arranged at the outlet of the air cannon barrel to prevent the shell-removing barrel from being removed from the air cannon barrel and allow the ice ball in the shell-removing barrel to fly out.
According to at least one embodiment of the present application, the outer drum wall has a plurality of axially aligned annular projections;
each annular protrusion is in clearance fit with the inner wall of the gas gun tube.
According to at least one embodiment of the application, a flexible buffer pad is laid along the inner wall of the cartridge.
According to at least one embodiment of the present application, the flexible bumper pad is bonded to the inner wall of the doffer.
According to at least one embodiment of the present application, a flexible cushion pad has a plurality of air flow gaps thereon.
According to at least one embodiment of the application, the partial air flow gap extends in the axial direction of the doffer.
According to at least one embodiment of the application, the partial air flow gap extends in the radial direction of the doffer.
According to at least one embodiment of the present application, in the above-mentioned bullet removing device, the bottom wall of the bullet removing barrel is provided with a plurality of first vent holes;
the flexible buffer cushion is provided with a plurality of second vent holes; each second exhaust hole is correspondingly communicated with one first exhaust hole.
Another aspect provides a gas gun firing mechanism comprising a gas gun barrel, and, comprising:
any one of the above-described projectile removing devices, wherein,
the shell removing cylinder is arranged in the gas gun tube;
the retainer ring is arranged at the outlet of the gas gun tube.
Drawings
FIG. 1 is a schematic diagram of a portion of an external shape of an air cannon firing mechanism provided in an embodiment of the present application;
FIG. 2 is a schematic partial structural diagram of a bullet trap provided in an embodiment of the present application;
FIG. 3 is a schematic view of another angle of FIG. 2;
wherein:
1-removing the cartridge; 2-ice hockey; 3-gas gun barrel; 4-a retainer ring; 5-a flexible buffer pad; 6-annular protrusion.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 3.
One aspect provides a bullet trap comprising:
the ice hockey device comprises a shell removing barrel 1, an ice hockey stick 2, a shell removing barrel and a shell removing device, wherein the shell removing barrel is used for accommodating the ice hockey stick 2 and is arranged in a gas gun tube 3 so as to be pushed to move towards the outlet direction of the gas gun tube 3;
and the retainer ring 4 is arranged at the outlet of the air cannon barrel 3 to prevent the shell-off barrel 1 from dropping out of the air cannon barrel 3 and allow the ice ball 2 in the shell-off barrel 1 to fly out.
For the missile shedding device disclosed in the above embodiment, it can be understood by those skilled in the art that the missile shedding cylinder 1 containing the ice ball 2 is arranged in the air gun tube 3, and it is understood that the open end of the missile shedding cylinder faces the outlet direction of the air gun tube 3, the missile shedding cylinder 1 is blocked by the retaining ring 4 when the air gun tube 3 is pushed to move towards the outlet direction of the air gun tube 3 and moves to the outlet position of the air gun tube 3, and the ice ball 2 in the missile shedding cylinder flies out at a certain speed through the middle of the retaining ring 4 without being blocked, so that the flying ice ball 2 can directly impact the aircraft engine through corresponding angle and direction design when the aircraft engine swallows a hail test, and the hail particle impact resistance of the aircraft engine can be verified.
For the bullet removing device disclosed in the above embodiment, it can be further understood by those skilled in the art that the bullet removing device does not rely on the difference of materials to separate the ice ball 2 from the bullet removing cylinder 1, but actively blocks the movement of the bullet removing cylinder 1 through the arrangement of the retainer ring 4 to separate the ice ball 2 from the bullet removing cylinder 1, and the ice ball 2 is separated from the bullet removing cylinder 1 in this way, so that the speed of the ice ball is not greatly influenced, and the speed of the ice ball separated from the bullet removing cylinder 1 can be greatly increased to reach more than 150m/s required in a hail swallowing test of an aircraft engine.
With regard to the projectile removing device disclosed in the above embodiment, it can be further understood by those skilled in the art that when the device is applied to a hail swallowing test of an aircraft engine, in the process of separating the ice ball 2 from the projectile removing barrel 1, the projectile removing barrel 1 is blocked in the air cannon barrel 3 by the retaining ring 4, and cannot fly out of the air cannon barrel 3 to be sucked by the aircraft engine.
In some alternative embodiments, the outer wall of the cartridge 1 has a plurality of annular projections 6 arranged in the axial direction;
each annular protrusion 6 is in clearance fit with the inner wall of the air cannon barrel 3, so that when the shell removing barrel 1 runs in the air cannon barrel 3, an air layer can be formed on the outer side of the wall surface, and the friction resistance between the shell removing barrel 1 and the air cannon barrel 3 in the motion process is reduced.
In some optional embodiments, the flexible buffer pad 5 is laid along the inner wall of the ejection cylinder 1, i.e. covers the inner wall surface of the ejection cylinder 1, so as to play a role of buffering and damping between the ejection cylinder 1 and the ice ball 2, and avoid the direct mutual compression between the ejection cylinder 1 and the ice ball 2 to generate large local stress, so that the ice ball 2 is damaged, and the structural integrity of the ice ball 2 is maintained.
In some alternative embodiments, the flexible buffer 5 is bonded to the inner wall of the cartridge 1 to prevent it from separating from the cartridge 1 and falling off the cartridge 1 during the movement of the cartridge 1.
In some alternative embodiments, the flexible buffer 5 has a plurality of air gaps for the flow of air into the doffer 1, reducing the force on the flexible buffer 5 and thus avoiding separation from the doffer 1.
In some alternative embodiments, part of the air flow gap extends axially along the cartridge 1, it being understood that this part of the air flow gap is located on a flexible buffer 5 covering the side wall of the cartridge 1, distributed circumferentially along the cartridge 1.
In some alternative embodiments, a portion of the air flow gap extends radially along the cartridge 1, it being understood that this portion of the air flow gap is located on a flexible cushion 5 covering the bottom wall of the cartridge 1, and may be distributed in a transverse arrangement.
In some optional embodiments, in the above-mentioned bullet removing device, the bottom wall of the bullet removing barrel 1 has a plurality of first exhaust holes;
the flexible buffer cushion 5 is provided with a plurality of second vent holes; every second exhaust hole corresponds and a first exhaust hole intercommunication to the air that supplies to get into in the cartridge 1 flows through, avoids getting into the air in the cartridge 1 and takes off the flexible blotter 5 that the back extrusion covers at cartridge 1 diapire after ice ball 2 takes off, makes this part flexible blotter 5 extruded.
Another aspect provides an air cannon firing mechanism comprising an air cannon barrel 3, and, comprising:
any one of the above-described projectile removing devices, wherein,
the shell removing cylinder 1 is arranged in the gas gun barrel 3;
the retainer ring 4 is arranged at the outlet position of the gas cannon barrel 3.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (9)
1. A depilling device, comprising:
the ejection-removing cylinder (1) is used for accommodating an ice ball (2) and is arranged in the air gun tube (3) so as to be pushed to move towards the outlet direction of the air gun tube (3);
and the retainer ring (4) is arranged at the outlet of the gas gun tube (3) to prevent the ejection-taking off cylinder (1) from ejecting out of the gas gun tube (3) and allow the ice balls (2) in the ejection-taking off cylinder (1) to fly out.
2. The projectile removing device as claimed in claim 1,
the outer wall of the shell removing cylinder (1) is provided with a plurality of annular bulges (6) which are arranged along the axial direction;
each annular protrusion (6) is in clearance fit with the inner wall of the gas gun tube (3).
3. The projectile removing device as claimed in claim 1,
and the flexible buffer cushion (5) is laid along the inner wall of the cartridge releasing cylinder (1).
4. The projectile removing device as claimed in claim 3,
the flexible buffer cushion (5) is adhered to the inner wall of the cartridge releasing cylinder (1).
5. The projectile removing device as claimed in claim 3,
the flexible buffer pad (5) is provided with a plurality of air flow gaps.
6. The projectile removing device as claimed in claim 5,
part of the air flow gap extends axially along the doffer drum (1).
7. The projectile removing device as claimed in claim 5,
part of the air flow gap extends in the radial direction of the doffer drum (1).
8. The projectile removing device as claimed in claim 3,
the bottom wall of the cartridge removing cylinder (1) is provided with a plurality of first exhaust holes;
the flexible buffer cushion (5) is provided with a plurality of second vent holes; each second exhaust hole is correspondingly communicated with one first exhaust hole.
9. The utility model provides a gas big gun shooting mechanism, this gas big gun shooting mechanism include gas big gun pipe (3), its characterized in that still includes:
the projectile extracting apparatus as claimed in any one of claims 1 to 9,
the shell removing cylinder (1) is arranged in the gas gun barrel (3);
the retainer ring (4) is arranged at the outlet of the gas gun tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010663944.2A CN111766074B (en) | 2020-07-10 | 2020-07-10 | Bullet removing device and gas gun launching mechanism with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010663944.2A CN111766074B (en) | 2020-07-10 | 2020-07-10 | Bullet removing device and gas gun launching mechanism with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111766074A true CN111766074A (en) | 2020-10-13 |
| CN111766074B CN111766074B (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010663944.2A Active CN111766074B (en) | 2020-07-10 | 2020-07-10 | Bullet removing device and gas gun launching mechanism with same |
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| CN (1) | CN111766074B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090178328A1 (en) * | 2008-01-14 | 2009-07-16 | Surf Rocket, Llc | Air cannon bait shooter |
| CN203587347U (en) * | 2013-12-05 | 2014-05-07 | 中航商用航空发动机有限责任公司 | Air cannon applied to hail impact test |
| CN205593724U (en) * | 2016-02-29 | 2016-09-21 | 中航商用航空发动机有限责任公司 | A moulding device that is used for high -speed gas big gun experimental |
| CN108362170A (en) * | 2018-02-07 | 2018-08-03 | 西北工业大学 | De- bullet device for air bubble |
| CN110388849A (en) * | 2018-04-23 | 2019-10-29 | 西北工业大学 | Air cannon device |
-
2020
- 2020-07-10 CN CN202010663944.2A patent/CN111766074B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090178328A1 (en) * | 2008-01-14 | 2009-07-16 | Surf Rocket, Llc | Air cannon bait shooter |
| CN203587347U (en) * | 2013-12-05 | 2014-05-07 | 中航商用航空发动机有限责任公司 | Air cannon applied to hail impact test |
| CN205593724U (en) * | 2016-02-29 | 2016-09-21 | 中航商用航空发动机有限责任公司 | A moulding device that is used for high -speed gas big gun experimental |
| CN108362170A (en) * | 2018-02-07 | 2018-08-03 | 西北工业大学 | De- bullet device for air bubble |
| CN110388849A (en) * | 2018-04-23 | 2019-10-29 | 西北工业大学 | Air cannon device |
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| Publication number | Publication date |
|---|---|
| CN111766074B (en) | 2022-07-15 |
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