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 PDF

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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
Authority
CN
China
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
Application number
CN201910357887.2A
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Chinese (zh)
Inventor
宋迎东
贾旭
胡绪腾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Aeronautics and Astronautics
Original Assignee
Nanjing University of Aeronautics and Astronautics
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN201910357887.2A priority Critical patent/CN110207542A/en
Publication of CN110207542A publication Critical patent/CN110207542A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/70Details not provided for in F41B11/50 or F41B11/60
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41BWEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
    • F41B11/00Compressed-gas guns, e.g. air guns; Steam guns
    • F41B11/80Compressed-gas guns, e.g. air guns; Steam guns specially adapted for particular purposes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
    • G01P3/685Devices 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

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

A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device
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.
CN201910357887.2A 2019-04-30 2019-04-30 A kind of Gas Gun is vented, tests the speed, chip removal integration stops rest device Pending CN110207542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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)

Application Number Priority Date Filing Date Title
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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Cited By (3)

* Cited by examiner, † Cited by third party
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

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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

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* Cited by examiner, † Cited by third party
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

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Cited By (5)

* Cited by examiner, † Cited by third party
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