CN110207542A - A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device - Google Patents
A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device Download PDFInfo
- Publication number
- CN110207542A CN110207542A CN201910357887.2A CN201910357887A CN110207542A CN 110207542 A CN110207542 A CN 110207542A CN 201910357887 A CN201910357887 A CN 201910357887A CN 110207542 A CN110207542 A CN 110207542A
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- Prior art keywords
- trustship
- vented
- speed
- light
- gas gun
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 230000010354 integration Effects 0.000 title claims abstract description 19
- BVPWJMCABCPUQY-UHFFFAOYSA-N 4-amino-5-chloro-2-methoxy-N-[1-(phenylmethyl)-4-piperidinyl]benzamide Chemical compound COC1=CC(N)=C(Cl)C=C1C(=O)NC1CCN(CC=2C=CC=CC=2)CC1 BVPWJMCABCPUQY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000009863 impact test Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/70—Details not provided for in F41B11/50 or F41B11/60
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/80—Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
- G01P3/685—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light for projectile velocity measurements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Toys (AREA)
Abstract
The invention discloses a kind of Gas Guns to be vented, test the speed, chip removal integration stops rest device, including stopping trustship, laser velocimeter device, only pallet, the head end of the only trustship connects with Gas Gun gun tube outlet port, it is only provided in trustship and Gas Gun gun tube female coaxial, and shape, the consistent trajectory hole in aperture;The laser velocimeter device includes two pairs of light-sensitive elements and laser emitter, and timer, light-sensitive element is connect with timer, two pairs of light-sensitive elements and laser emitter being installed in the mounting hole being arranged in only trustship one in front and one in back respectively, the only pallet is installed on the tail end of only trustship, only pallet is provided with centre bore, and the aperture of centre bore is greater than the maximum outside diameter of body and is less than the maximum outside diameter of bullet support;Described only to offer side channel in trustship, side channel is connected to trajectory hole, for be vented and exhaust impact after bullet support clast.The present invention can be effectively reduced the dispersibility of impact test to reduce experimentation cost.
Description
Technical field
The present invention relates to a kind of Gas Guns to be vented, test the speed, chip removal integration stops rest device, belongs to high velocity ballistic impact examination
Field is tested, damages field in particular for the hard object of aerial engine fan/compressor blade.
Background technique
Aero-engine often inevitably sucks the hard objects such as sandstone, shell case metalloid during normal service, with
High-speed rotating fan/compressor blade, which collides, causes the positions such as blade inlet edge the hard object damage such as notch, pit occur.Gas
Body big gun is to be widely used in navigating for artificially creating the research technique with the consistent hard object damage in outfield in laboratory conditions
The empty hard object of engine damages field.For measuring the speed measuring device of body and only rest device is all disposed within the rear journey gun tube of Gas Gun
On, if the section that tests the speed often lead to test the speed farther out apart from gun muzzle it is bigger than normal, if while only rest device for chip removal size different with completion
Longer chip-removal hole is often arranged in the only support task of body, then body airflight in this neutral area most probably increases bullet
A possibility that body deflects before colliding with sample, and then the randomness for being exaggerated impact injury is unfavorable for the repetition of test
Property.In order to realize that the test of control variable (such as impact velocity, angle of attack etc.) type generally requires to carry out largely impacting examination
Test performance test (such as high cycles fatigue for then therefrom selecting hard object damage caused by uniform impingement posture to carry out next step
Can).Therefore, the repeatability based on the high velocity ballistic impact test for stopping tropsch technology at present is poor, is bound to cause a large amount of manpower
The waste of material resources aggravates experimentation cost.
It is therefore desirable to which a kind of new Gas Gun is solved the above problems with only tropsch technology scheme.
Summary of the invention
The object of the present invention is to provide a kind of Gas Guns to be vented, test the speed, chip removal integration stops rest device, to solve aviation
Since air distance is too long and flight deflection is caused to cause to impact for body (such as square) in engine hard object impact field
The problem that posture is excessively random and causes impact injury dispersibility excessive.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device, including stops trustship, laser velocimeter device, only holds in the palm
The head end of disk, the only trustship connects with Gas Gun gun tube outlet port, is only provided in trustship same with Gas Gun gun tube inner hole
Axis, and shape, the consistent trajectory hole in aperture;The laser velocimeter device includes two pairs of light-sensitive elements and laser emitter, and
Timer, light-sensitive element are connect with timer, two pairs of light-sensitive elements and laser emitter being installed on and only hold in the palm one in front and one in back respectively
In the mounting hole being arranged on pipe, and every a pair of of light-sensitive element is oppositely arranged respectively with laser emitter, each pair of light-sensitive element with it is sharp
The center of mounting hole where optical transmitting set is overlapped;The only pallet is installed on the tail end of only trustship, and only pallet is provided with center
Hole, the aperture of centre bore are greater than the maximum outside diameter of body and are less than the maximum outside diameter of bullet support;Side channel is offered in the only trustship,
Side channel is connected to trajectory hole, for be vented and exhaust impact after bullet support clast.
The section in the trajectory hole is ellipse.
" preparation " order button is provided on the timer, after pressing " preparation " order button, timer starts timing
Work, when work, light-sensitive element trigger signal starts timing before the light beam of laser emitter makes before bullet support is cut, the cutting of bullet support
The light beam of laser emitter makes rear light-sensitive element trigger signal terminate timing afterwards, and timer entrance, which is not ready to state, prevents bullet support
The interference of clast cutting light.
Two pairs of light-sensitive elements are coplanar with the center line of laser emitter.
The only pallet is with a thickness of 5~10mm.
The side channel is located at the second half section of only trustship.
The side channel is to be set to trajectory hole two sides and about the symmetrical two step slots of trajectory centerline hole.
Trajectory hole is cut into original 2/3 size by two step slots, and the trajectory hole of 2/3 size of retention is used
Make the dragging track of bullet support.
It is provided with external screw thread on the only pallet, only trustship tail end is provided with compatible internal screw thread therewith, and only pallet is logical
It crosses screw thread and is installed on only trustship tail end.
When the only rest device work, sample is placed within the 10mm of body outlet port.
The utility model has the advantages that Gas Gun front end is vented, tests the speed by the present invention, only the functions such as support chip removal are organically incorporated in one,
The dispersibility of impact test can be effectively reduced to reduce experimentation cost.
Detailed description of the invention
Fig. 1 a is that a kind of Gas Gun of the present invention is vented, tests the speed, chip removal integration stops rest device structure chart;
Fig. 1 b be Fig. 1 a in A-A to diagrammatic cross-section;
Fig. 1 c is the diagrammatic cross-section of B-B direction in Fig. 1 a;
Fig. 1 d be Fig. 1 a in C-C to diagrammatic cross-section;
Fig. 2 is that a kind of Gas Gun of the present invention is vented, tests the speed, chip removal integration stops rest device partial sectional view;
Trustship 3 dimensional drawing until Fig. 3;
Pallet 3 dimensional drawing until Fig. 4;
Fig. 5 a is that rectangular body is mounted in bullet support with a kind of posture;
Fig. 5 b is that rectangular body is mounted in bullet support with another posture;
Appended drawing reference in figure:
1- stops trustship, and 2- stops pallet, light-sensitive element before 3-, light-sensitive element after 4-, laser emitter before 5-, and laser is sent out after 6-
Emitter, 7- bullet support, 8- body, 9- timer, 10- Gas Gun gun tube, 11- sample, 12- trajectory hole, 13- centre bore, the side 14-
Slot, 15- inner hole.
Specific embodiment
Further explanation is done to the present invention with reference to the accompanying drawing.
As shown in Fig. 1 a-1d and Fig. 2 and 3, a kind of Gas Gun of the invention is vented, tests the speed, chip removal integration is only held in the palm
Device, including stop trustship 1, laser velocimeter device, only pallet 2, in which:
Only the head end of trustship 1 connects with 10 outlet port of Gas Gun gun tube, is only provided in trustship 1 and Gas Gun gun tube 10
Inner hole 15 it is coaxial, and shape, the consistent trajectory hole 12 in aperture, as shown in Fig. 1 b and 1d;In the trajectory hole 12 for ensuring only trustship 1
With the inner hole 15 of Gas Gun gun tube 10 coaxially with position in the case where, by only trustship 1 be fixed on 10 outlet port of Gas Gun gun tube with
Guarantee that bullet support 7 carries body 8 and glossily can enter only trustship 1 by gun tube 10.Wherein, such as Fig. 5 a and 5b, the shape of bullet support 7 with
The shape in the trajectory hole 12 of 10 inner hole of Gas Gun gun tube and trustship 1 is identical, and ready service magazine is offered in bullet support 1, is used in ready service magazine
Body 8 is installed;Ready service magazine is located at 7 head center position of bullet support, and the shape of ready service magazine is adapted with 8 shape of body, is being flown
In prevent rotation between body and bullet support while play support body.
Laser velocimeter device includes timer 9 and two pairs of light-sensitive elements and laser emitter, respectively preceding light-sensitive element
3 and preceding laser emitter 5, rear light-sensitive element 4 and rear laser emitter 6, preceding light-sensitive element 3, rear light-sensitive element 4 respectively with timing
Device 9 connects, two pairs of light-sensitive elements and laser emitter being installed in the mounting hole being arranged in only trustship 1 one in front and one in back respectively,
And every a pair of of light-sensitive element is oppositely arranged respectively with laser emitter, the mounting hole where each pair of light-sensitive element and laser emitter
Center be overlapped.Two pairs of light-sensitive elements are coplanar with the center line of laser emitter.Two pairs of light-sensitive elements and laser emitter are installed
In only trustship 1 close to the second half section of only pallet 2.
" preparation " order button is provided on timer 9, after pressing " preparation " order button, timer 9 starts timeworker
Make, when work, light-sensitive element trigger signal starts timing before the light beam of laser emitter makes before bullet support is cut, after the cutting of bullet support
The light beam of laser emitter makes rear light-sensitive element trigger signal terminate timing, and timer entrance, which is not ready to state, prevents bullet support broken
The interference of bits cutting light.
Only pallet 2 is installed on the tail end of only trustship 1, and only pallet 2 is provided with centre bore 13, and the aperture of centre bore 13 is greater than bullet
The maximum outside diameter of body 8 and the maximum outside diameter for being less than bullet support 7;To realize the separation of bullet support 8 Yu body 7.As shown in figure 4, only holding in the palm
External screw thread is provided on disk 2, only 1 tail end of trustship is provided with compatible internal screw thread therewith, and only pallet 2 is installed on only by screw thread
1 tail end of trustship.Only pallet is with a thickness of 5~10mm.
As shown in Fig. 1 a, 1c and Fig. 3, side channel 14 is only offered in trustship 1, side channel 14 is connected to trajectory hole 12, side channel
14 are located at the second half section of only trustship 1, that is, are equipped with that section of two pairs of light-sensitive elements and laser emitter.Side channel 14 is to be set to
12 two sides of trajectory hole and about the symmetrical two step slots in 12 center of trajectory hole.Two step slots cut trajectory hole 12
For original 2/3 size.The clast that side channel is used to be vented and exhaust bullet support after impact can not only reduce gas and be hit by a bullet to testing the speed
The influence that support 7 is flown can prevent clast from blocking again, and 2/3 centre bore of retention is used as the dragging track of bullet support 7.
The section in trajectory hole 12 is ellipse, it is therefore intended that: bullet support is in flight course by the bore of ellipse to ellipse
The restriction effect of circular bullet support, to realize the rotation for preventing bullet support and body.
When only rest device works, sample 11 is placed within the 10mm of body outlet port.Farthest to shorten body
The skyborne flight time reduces a possibility that body deflects, to improve the precision of hard object impact.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: including stopping trustship (1), laser
Speed measuring device stops pallet (2), and the head end of only trustship (1) connects with Gas Gun gun tube (10) outlet port, only trustship (1)
In be provided with and Gas Gun gun tube (10) female coaxial, and shape, the consistent trajectory hole (12) in aperture;The laser velocimeter device
It is connect including two pairs of light-sensitive elements and laser emitter and timer (9), light-sensitive element with timer (9), two pairs of photosensitive members
Part and laser emitter being installed in the mounting hole being arranged on only trustship (1) one in front and one in back, and every a pair of of light-sensitive element respectively
It is oppositely arranged respectively with laser emitter, each pair of light-sensitive element is overlapped with the center of the mounting hole where laser emitter;It is described
Only pallet (2) is installed on the tail end of only trustship (1), and only pallet (2) is provided with centre bore (13), and the aperture of centre bore (13) is greater than
The maximum outside diameter of body (8) and the maximum outside diameter for being less than bullet support (7);Side channel (14), side channel are offered in only trustship (1)
(14) be connected to trajectory hole (12), for be vented and exhaust impact after bullet support clast.
2. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
The section in trajectory hole (12) is ellipse.
3. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
" preparation " order button is provided on timer (9), after pressing " preparation " order button, timer (9) starts timework, work
When making, light-sensitive element trigger signal starts timing before the light beam of laser emitter makes before bullet support is cut, laser after the cutting of bullet support
The light beam of transmitter makes rear light-sensitive element trigger signal terminate timing, and timer entrance, which is not ready to state, prevents bullet support clast from cutting
Cut the interference of light.
4. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
Two pairs of light-sensitive elements it is coplanar with the center line of laser emitter.
5. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
Only pallet is with a thickness of 5~10mm.
6. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
Side channel (14) is located at the second half section of only trustship (1).
7. Gas Gun according to claim 1 or 6 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that:
The side channel (14) is to be set to trajectory hole (12) two sides and about the symmetrical two step slots in trajectory hole (12) center.
8. Gas Gun according to claim 7 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
Two step slots trajectory hole (12) are cut into original 2/3 size, the trajectory hole (12) of 2/3 size of retention is used as bullet
The dragging track of support.
9. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: described
It only is provided with external screw thread on pallet (2), only trustship (1) tail end is provided with compatible internal screw thread therewith, and only pallet (2) passes through spiral shell
Line is installed on only trustship (1) tail end.
10. Gas Gun according to claim 1 is vented, tests the speed, chip removal integration stops rest device, it is characterised in that: institute
When stating only rest device work, sample (11) is placed within the 10mm of body outlet port.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910357887.2A CN110207542A (en) | 2019-04-30 | 2019-04-30 | A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device |
Applications Claiming Priority (1)
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CN201910357887.2A CN110207542A (en) | 2019-04-30 | 2019-04-30 | A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device |
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CN110207542A true CN110207542A (en) | 2019-09-06 |
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CN201910357887.2A Pending CN110207542A (en) | 2019-04-30 | 2019-04-30 | A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111238296A (en) * | 2020-02-17 | 2020-06-05 | 湘潭大学 | Light gas big gun mechanical hulling device |
CN113176156A (en) * | 2021-03-02 | 2021-07-27 | 南京航空航天大学 | Light gas gun test device capable of switching rotatable gun barrel in situ |
CN114909950A (en) * | 2022-03-17 | 2022-08-16 | 中国航发沈阳发动机研究所 | Adjustable and calibratable air gun sighting device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239930A (en) * | 1990-02-08 | 1993-08-31 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Hypervelocity sabot |
CN104534924A (en) * | 2014-12-11 | 2015-04-22 | 哈尔滨工业大学 | Rotatable light-gas gun device |
CN104896005A (en) * | 2015-06-09 | 2015-09-09 | 西安交通大学 | Novel high-speed light-gas gun muzzle bullet-separating vibration damping system |
CN107655368A (en) * | 2017-10-27 | 2018-02-02 | 西安工业大学 | A kind of non-contact air big gun speed measuring equipment and its method |
CN207280717U (en) * | 2017-03-31 | 2018-04-27 | 中国航发商用航空发动机有限责任公司 | Emitter for high-speed test (HST) bullet impact test |
-
2019
- 2019-04-30 CN CN201910357887.2A patent/CN110207542A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239930A (en) * | 1990-02-08 | 1993-08-31 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Hypervelocity sabot |
CN104534924A (en) * | 2014-12-11 | 2015-04-22 | 哈尔滨工业大学 | Rotatable light-gas gun device |
CN104896005A (en) * | 2015-06-09 | 2015-09-09 | 西安交通大学 | Novel high-speed light-gas gun muzzle bullet-separating vibration damping system |
CN207280717U (en) * | 2017-03-31 | 2018-04-27 | 中国航发商用航空发动机有限责任公司 | Emitter for high-speed test (HST) bullet impact test |
CN107655368A (en) * | 2017-10-27 | 2018-02-02 | 西安工业大学 | A kind of non-contact air big gun speed measuring equipment and its method |
Non-Patent Citations (1)
Title |
---|
游仁安: "《战争之神》", 31 July 2011, 兵器工业出版社 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111238296A (en) * | 2020-02-17 | 2020-06-05 | 湘潭大学 | Light gas big gun mechanical hulling device |
CN113176156A (en) * | 2021-03-02 | 2021-07-27 | 南京航空航天大学 | Light gas gun test device capable of switching rotatable gun barrel in situ |
CN113176156B (en) * | 2021-03-02 | 2022-12-23 | 南京航空航天大学 | Light gas gun test device capable of switching rotatable gun barrel in situ |
CN114909950A (en) * | 2022-03-17 | 2022-08-16 | 中国航发沈阳发动机研究所 | Adjustable and calibratable air gun sighting device |
CN114909950B (en) * | 2022-03-17 | 2023-06-20 | 中国航发沈阳发动机研究所 | Adjustable and calibratable air gun sighting device |
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Application publication date: 20190906 |