CN108917462A - A kind of air bubble emitter with quick release mechanism - Google Patents

A kind of air bubble emitter with quick release mechanism Download PDF

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Publication number
CN108917462A
CN108917462A CN201810695050.4A CN201810695050A CN108917462A CN 108917462 A CN108917462 A CN 108917462A CN 201810695050 A CN201810695050 A CN 201810695050A CN 108917462 A CN108917462 A CN 108917462A
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China
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pressure sensor
plc controller
valve
small
quick release
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CN201810695050.4A
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CN108917462B (en
Inventor
王尚
张小兵
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • 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
    • 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
    • F41B11/71Electric or electronic control systems, e.g. for safety purposes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Fluid Pressure (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The present invention provides a kind of air bubble emitter with quick release mechanism, including air compressor, intake valve, gas chamber, transmitting valve, first pressure sensor, second pressure sensor, quick release mechanism, PLC controller, Lavalle accelerating tube, transmitting tube;Air compressor is connect by intake valve with air inlet of air chamber, gas chamber gas outlet is connect by emitting valve with quick release mechanism one end, the quick release mechanism other end is connect by Lavalle accelerating tube with transmitting tube, first pressure sensor is set at gas chamber for monitoring pressure value in gas chamber, second pressure sensor is set at transmitting valve for monitoring the pressure value for discharging gas at transmitting valve, and PLC controller is electrically connected with intake valve, transmitting valve, first pressure sensor, second pressure sensor, quick release mechanism.The device can be such that transmitting air-flow quickly, largely, equably flows out in a short time, act on bullet bottom, push Projectile Motion.

Description

A kind of air bubble emitter with quick release mechanism
Technical field
The present invention relates to a kind of air bubble lift-off technology, a kind of air bubble transmitting dress with quick release mechanism when special It sets.
Background technique
Air bubble is a kind of special emitter, its working principle is that using compressed-air energy storage, by gas in gas chamber It can be converted into the kinetic energy of bullet in barrel in a part of storage, complete launch mission.Compared with conventional cannon, although air bubble Power is smaller but has the advantages that conventional cannon is irreplaceable.For example, bore temperature when it emits is far below general cannon, It can be used for the material of the non-refractories such as emission test instrument, relief goods.
Traditional air bubble pressure release mechanism has piston type, double rupture of membranes formulas and wrap-around etc., they have, and structure is complicated, What is had is difficult to install, and consume also is big, cannot reuse, and launch accuracy is poor and safety is low.
201310416505.1 disclosing《A kind of supersonic speed air bubble emitter》, pass through band prestressing force slot metallic membrane Moment rupture under pressure-air effect provides biggish initial transmissions pressure.But on the one hand its diaphragm is aluminum, rupture After can be with high-speed jet to Projectile Motion, there are security risks;On the other hand, the groove depth of prestressing force slot corresponds to prestressed design Method, will lead to actual transmission speed and design emission rate has very big error.There are also be exactly brokenly diaphragm pressure machine for releasing Structure cannot reuse, so consume is very big, but also it is difficult to ensure that emit the stepless action of air-flow.
Summary of the invention
The purpose of the present invention is to provide a kind of air bubble emitter with quick release mechanism, the device can be It flows out transmitting air-flow quickly, largely, equably, acts on bullet bottom, push Projectile Motion.
Realize the object of the invention technical solution be:A kind of air bubble emitter with quick release mechanism, including Air compressor, intake valve, gas chamber, transmitting valve, first pressure sensor, second pressure sensor, quick release mechanism, PLC Controller, Lavalle accelerating tube, transmitting tube;Air compressor is connect by intake valve with air inlet of air chamber, and gas chamber gas outlet is logical It crosses transmitting valve to connect with quick release mechanism one end, the quick release mechanism other end is connected by Lavalle accelerating tube and transmitting tube It connects, first pressure sensor is set at gas chamber for monitoring pressure value in gas chamber, and second pressure sensor is set to transmitting valve Place discharges the pressure value of gas for monitor at transmitting valve, PLC controller and intake valve emit valve, first pressure sensor, the Two pressure sensors, quick release mechanism electrical connection;The numerical value that first pressure sensor, second pressure sensor are surveyed is PLC Controller provides signal, and intake valve, air outlet valve are in the control lower switch of PLC controller, and quick release mechanism is in PLC controller The channel that a certain size is opened under control passes through for air.
Using above-mentioned apparatus, the course of work of PLC controller is:PLC controller controls intake valve and opens;First pressure passes Sensor monitors the real-time change of gas room pressure, and the pressure value of fluctuation is fed back to PLC control;PLC controller obtain first When pressure sensor value of feedback reaches preset value, control transmitting valve is opened;Second pressure sensor measures the pressure at transmitting valve It is worth and feeds back to PLC controller;When the second pressure sensor feedback value that PLC controller obtains reaches preset value, control is quick Relieving mechanism movement.
Using above-mentioned apparatus, the quick release mechanism includes shell, several sector structure bodies, several telescoping mechanisms;Outside Through-hole is arranged in shell, which is connect with transmitting valve and Lavalle accelerating tube by pipeline respectively, along through-hole circumferential direction in shell Several channels passed through for sector structure body are set, and several sector structure bodies can form the straight of a cylindrical body and the cylindrical body Diameter is interior through identical with outer casing through hole, and each sector structure body is retracted under the driving of corresponding telescoping mechanism in corresponding channel, is stretched The flexible stroke of contracting mechanism is controlled by PLC controller.
Using above-mentioned apparatus, convex platform and lower convex platform, adjacent sector are respectively set on the both sides of each sector structure body Convex platform and lower convex platform engagement between structure.
Using above-mentioned apparatus, several small through hole, the interior diameter along small through hole of sector structure body are set on each sector structure body To a passage aisle is arranged, a small cylinder structure identical with small through hole internal diameter, each small cylinder knot are set in each through-hole One small telescoping mechanism is set on structure, and passage aisle is stretched out in small telescoping mechanism driving small cylinder structure retraction, and small telescoping mechanism is stretched Indention journey is controlled by PLC controller.
Compared with prior art, the present invention having the following advantages that:(1) there is the present invention air bubble of quick release mechanism to send out The band that injection device uses can be opened and closed the fan-shaped telescopic quick release mechanism of circular hole as modular unit, and installation is simple, and solve Rupture of membranes formula of having determined pressure release mechanism cannot reuse, there are the problems of security risk;(2) two pressure sensors of band are introduced PLC control system, be not only able to the emission process of automation control air bubble, and the setting of second pressure sensor, make PLC controller just executes launching procedure after obtaining pressure stationary value, rather than is subject to and fluctuates peak value, these are all conducive to improve Launch accuracy;(3) Lavalle accelerating tube is introduced between quick release mechanism and bullet, can be obtained under lower transmitting pressure To higher emission rate, energy consume is reduced, or even rate limitation can be broken, emits bullet with supersonic speed.
The invention will be further described with reference to the accompanying drawings of the specification.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the air bubble emitter that the present invention has quick release mechanism.
Fig. 2 is the structural schematic diagram for the fan-shaped telescopic quick release mechanism that band of the present invention can be opened and closed circular hole.
Fig. 3 is the structural schematic diagram of site of engagement under sector structure body.
Specific embodiment
In conjunction with Fig. 1, a kind of air bubble emitter with quick release mechanism, including air compressor 1, intake valve 2, Gas chamber 3, transmitting valve 4, first pressure sensor 5, second pressure sensor 6, quick release mechanism 7, PLC controller 8, Lavalle Accelerating tube 9, bullet 10, transmitting tube 11, gear play ring 12 etc..Air compressor 1 and intake valve 2, intake valve 2 and gas chamber 3, gas chamber 3 With gas passage between transmitting valve 4, transmitting valve 4 and quick release mechanism 7, quick release mechanism 7 and Lavalle accelerating tube 9 Connecting tube is connected.
PLC controller 8 and intake valve 2, transmitting valve 4, first pressure sensor 5, second pressure sensor 6, quick release Mechanism 7 is electrically connected;The numerical value that first pressure sensor 5, second pressure sensor 6 are surveyed is that PLC controller 8 provides signal, into In the control lower switch of PLC controller 8, quick release mechanism 7 opens one under the control of PLC controller 8 for air valve 2, air outlet valve 4 The channel for determining size passes through for air.
In conjunction with Fig. 2, Fig. 3, quick release mechanism 7 includes shell 72, several sector structure bodies 711, several telescoping mechanisms.Outside Through-hole is arranged in shell 72, which is connect with transmitting valve 4 and Lavalle accelerating tube 9 by pipeline respectively, along logical in shell 72 Several channels 721 passed through for sector structure body 711 are circumferentially arranged in hole, and several sector structure bodies 711 can form a cylindrical body 71 and diameter and 72 through-hole of shell of the cylindrical body 71 in through identical, each sector structure body 711 is in corresponding telescoping mechanism Driving is lower to be retracted in corresponding channel 721, and the flexible stroke of telescoping mechanism is controlled by PLC controller 8.Each sector structure body Convex platform 714 and lower convex platform 713 are respectively set on 711 both sides, the convex platform 714 between adjacent sector structure 711 is under Boss 713 engages.Several small through hole are set on each sector structure body 711, and the interior radial direction along small through hole of sector structure body 711 is set A passage aisle is set, a small cylinder structure 712 identical with small through hole internal diameter, each small cylinder structure are set in each through-hole Passage aisle is stretched out in one small telescoping mechanism of upper setting, the small telescoping mechanism driving retraction of small cylinder structure 712, and small telescoping mechanism is stretched Indention journey is controlled by PLC controller 8.
Airflow channel and asymmetric of the common valve when opening, causes bullet bottom stress unbalance.And the present invention uses Sector structure body 711, the structural body shrink when, generate airflow channel be it is symmetrical and uniform, being capable of uniform air-flow. The opening of small cylinder structure 712 can further increase the area of airflow channel, obtain mass air flow in a short time.
Since 7 manual control of quick release mechanism that the present invention announces is difficult, for the ease of realizing accurate control, band is introduced The PLC control system of pressure sensor is automatically controlled the opening of quick release mechanism 7 and the hair of bullet 10 by PLC controller 8 It penetrates.The PLC controller 8 be electrically connected to intake valve 2, transmitting valve 4, first pressure sensor 5, second pressure sensor 6, Quick release mechanism 7.
As shown in Figure 1, in use, setting gas injection pressure (i.e. design transmitting pressure), PLC control to PLC controller 8 first Device 8 opens intake valve 2 after receiving sign on, is inflated by air compressor 1 to gas chamber 3, is monitored by first pressure sensor 5 The real-time change of pressure in gas chamber 3, and the pressure value of fluctuation is fed back into PLC controller 8;When the feedback that PLC controller 8 obtains When numerical value reaches design transmitting pressure, control transmitting valve 4 is slowly opened, and the slow opening of transmitting valve 4 can be such that second pressure passes The detection of sensor 6 obtains pressure stationary value, rather than fluctuates peak value, to improve launch accuracy;When second pressure sensor 6 is fed back Pressure stationary value when reaching design transmitting pressure, PLC controller 8, which sends instruction, acts quick release mechanism 7, including simultaneously Segment structure 711 and cylindrical structure 712 are opened, can make to emit air-flow in a short time so quickly, largely, equably Outflow, keeps the power for acting on 10 bottom of bullet more uniform, and bullet 10 is pushed to move.
In order to reduce energy consume, higher emission rate is obtained under lower transmitting pressure, or even enable bullet 10 It is enough to be emitted with supersonic speed, Lavalle accelerating tube 9 is introduced between quick release mechanism 7 and bullet 10.
Embodiment one
Quick-release laying mechanism 7 is the fan-shaped telescopic quick release mechanism that band can be opened and closed circular hole, by six equal sectors For the engagement of structural body 711 at the good cylindrical body 71 of a closure, sector structure body 711 is extension type, and when stretching nibbles up and down It closes mechanism 714,713 and engages confining gas channel with adjacent mechanism, when contraction respectively retracts in rectangular body case 72, can be quick Open gas passage.Also there are six small cylinder structure 712 to be opened/closed, working principles for band on each sector structure body 711 It is identical with sector structure body 711, it can stretch and pass in and out sector structure body 711, to control the flowing of gas.In order to make sector Structural body 711 can enter rectangular body case 72, the upper following table of cylindrical body 71 made of sector structure body 711 engages with free extension There are differences in height for the upper and lower surface of face and rectangular body case 72, and the difference in height of upper and lower surface is identical.In addition outside cylindrical body 71 The corresponding shrinking zone of rectangular body case 72 is sector structure body 711 that is hollow, being shunk back with placement.In order to make six it is equal The engagement of sector structure body 711 can encrypt seal in engagement place at the good cylindrical body 71 of a closure.It is airtight in order to guarantee Property is good, and quick release mechanism 7 can be bolted flange screw with the airflow channel at its both ends and connect, and interface also adds If sealing ring.

Claims (7)

1. a kind of air bubble emitter with quick release mechanism, which is characterized in that including air compressor (1), air inlet Valve (2), gas chamber (3), transmitting valve (4), first pressure sensor (5), second pressure sensor (6), quick release mechanism (7), PLC controller (8), Lavalle accelerating tube (9), transmitting tube (11);Wherein
Air compressor (1) is connect by intake valve (2) with gas chamber (3) air inlet,
Gas chamber (3) gas outlet is connect by emitting valve (4) with quick release mechanism (7) one end,
Quick release mechanism (7) other end is connect by Lavalle accelerating tube (9) with transmitting tube (11),
First pressure sensor (5) is set at gas chamber (3) for monitoring gas chamber (3) interior pressure value,
Second pressure sensor (6) is set to for monitoring the pressure value for discharging gas at transmitting valve (4) at transmitting valve (4),
It is PLC controller (8) and intake valve (2), transmitting valve (4), first pressure sensor (5), second pressure sensor (6), fast Quick-release laying mechanism (7) electrical connection;
The numerical value that first pressure sensor (5), second pressure sensor (6) are surveyed is that PLC controller (8) provide signal,
Intake valve (2), air outlet valve (4) PLC controller (8) control lower switch,
The channel that quick release mechanism (7) opens a certain size under the control of PLC controller (8) passes through for air.
2. the apparatus according to claim 1, which is characterized in that the course of work of PLC controller (8) is:
PLC controller (8) controls intake valve (2) and opens;
First pressure sensor (5) monitors the real-time change of gas chamber (3) interior pressure, and the pressure value of fluctuation is fed back to PLC control (8);
When first pressure sensor (5) value of feedback that PLC controller (8) obtains reaches preset value, control transmitting valve (4) is opened;
Second pressure sensor (6) measures the pressure value at transmitting valve (4) and feeds back to PLC controller (8);
When second pressure sensor (6) value of feedback that PLC controller (8) obtains reaches preset value, control quick release mechanism (7) Movement.
3. the apparatus of claim 2, which is characterized in that transmitting valve (4) is at the uniform velocity opened with certain speed, second pressure It is pressure stationary value that sensor (6), which measures,.
4. device according to claim 1 or 2, which is characterized in that the quick release mechanism (7) include shell (72), Several sector structure bodies (711), several telescoping mechanisms;Wherein
Through-hole is arranged in shell (72), which is connect with transmitting valve (4) and Lavalle accelerating tube (9) by pipeline respectively,
Several channels (721) passed through for sector structure body (711) are circumferentially set along through-hole in shell (72),
Several sector structure bodies (711) can form the diameter of a cylindrical body (71) and the cylindrical body (71) and shell (72) lead to Through identical in hole,
Each sector structure body (711) is retracted under the driving of corresponding telescoping mechanism in corresponding channel (721),
The flexible stroke of telescoping mechanism is controlled by PLC controller (8).
5. device according to claim 3, which is characterized in that be respectively set on the both sides of each sector structure body (711) Convex platform (714) and lower convex platform (713), convex platform (714) and lower convex platform (713) between adjacent sector structure (711) are nibbled It closes.
6. device according to claim 3, which is characterized in that several small through hole are set on each sector structure body (711), Setting one is identical as small through hole internal diameter along the passage aisle that is arranged radially of small through hole, each through-hole in sector structure body (711) Small cylinder structure (712), a small telescoping mechanism is set in each small cylinder structure, and small telescoping mechanism drives small cylinder Passage aisle is stretched out in structure (712) retraction, and the flexible stroke of small telescoping mechanism is controlled by PLC controller (8).
7. device according to claim 4, which is characterized in that several small through hole are set on each sector structure body (711), Setting one is identical as small through hole internal diameter along the passage aisle that is arranged radially of small through hole, each through-hole in sector structure body (711) Small cylinder structure (712), a small telescoping mechanism is set in each small cylinder structure, and small telescoping mechanism drives small cylinder Passage aisle is stretched out in structure (712) retraction, and the flexible stroke of small telescoping mechanism is controlled by PLC controller (8).
CN201810695050.4A 2018-06-28 2018-06-28 Air cannon launching device with quick release mechanism Active CN108917462B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955372A (en) * 2018-06-28 2018-12-07 南京理工大学 A kind of uniform air bubble emitter of transmitting air-flow
CN109813180A (en) * 2018-12-03 2019-05-28 南京航空航天大学 A kind of air bubble localizing emission control system and control method based on rotating vane
CN113772096A (en) * 2021-08-16 2021-12-10 航天时代飞鹏有限公司 Freight unmanned aerial vehicle fixed-point throwing system and cargo fixed-point throwing method
CN114184290A (en) * 2022-02-15 2022-03-15 徐州赛森电子自动化技术有限公司 Automatic early warning equipment of coal yard temperature
CN114754963A (en) * 2022-06-14 2022-07-15 中国飞机强度研究所 Multistage air gun metal diaphragm filling system for airplane high-speed impact power test

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103512423A (en) * 2013-09-12 2014-01-15 南京航空航天大学 Supersonic speed air cannon launcher
CN103673755A (en) * 2013-12-13 2014-03-26 中国工程物理研究院总体工程研究所 Rapid-emitting air cannon
CN103674463A (en) * 2013-11-13 2014-03-26 南京航空航天大学 Air cannon launch control system
CN105115357A (en) * 2015-09-08 2015-12-02 中国工程物理研究院总体工程研究所 Portable multi-functional pneumatic emitter
CN205784850U (en) * 2016-07-15 2016-12-07 中国工程物理研究院总体工程研究所 Integral type Heavy duty air big gun discharger
CN108955372A (en) * 2018-06-28 2018-12-07 南京理工大学 A kind of uniform air bubble emitter of transmitting air-flow

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103512423A (en) * 2013-09-12 2014-01-15 南京航空航天大学 Supersonic speed air cannon launcher
CN103674463A (en) * 2013-11-13 2014-03-26 南京航空航天大学 Air cannon launch control system
CN103673755A (en) * 2013-12-13 2014-03-26 中国工程物理研究院总体工程研究所 Rapid-emitting air cannon
CN105115357A (en) * 2015-09-08 2015-12-02 中国工程物理研究院总体工程研究所 Portable multi-functional pneumatic emitter
CN205784850U (en) * 2016-07-15 2016-12-07 中国工程物理研究院总体工程研究所 Integral type Heavy duty air big gun discharger
CN108955372A (en) * 2018-06-28 2018-12-07 南京理工大学 A kind of uniform air bubble emitter of transmitting air-flow

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108955372A (en) * 2018-06-28 2018-12-07 南京理工大学 A kind of uniform air bubble emitter of transmitting air-flow
CN108955372B (en) * 2018-06-28 2021-03-26 南京理工大学 Air cannon launching device capable of launching air flow uniformly
CN109813180A (en) * 2018-12-03 2019-05-28 南京航空航天大学 A kind of air bubble localizing emission control system and control method based on rotating vane
CN109813180B (en) * 2018-12-03 2021-03-30 南京航空航天大学 Air cannon positioning and launching control system and control method based on rotating blades
CN113772096A (en) * 2021-08-16 2021-12-10 航天时代飞鹏有限公司 Freight unmanned aerial vehicle fixed-point throwing system and cargo fixed-point throwing method
CN113772096B (en) * 2021-08-16 2024-06-11 航天时代飞鹏有限公司 Fixed-point throwing system and fixed-point throwing method for freight unmanned aerial vehicle
CN114184290A (en) * 2022-02-15 2022-03-15 徐州赛森电子自动化技术有限公司 Automatic early warning equipment of coal yard temperature
CN114754963A (en) * 2022-06-14 2022-07-15 中国飞机强度研究所 Multistage air gun metal diaphragm filling system for airplane high-speed impact power test
CN114754963B (en) * 2022-06-14 2022-08-26 中国飞机强度研究所 Multistage air gun metal diaphragm filling system for airplane high-speed impact power test

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