CN113606033A - Gas actuating device with reversible movement structure - Google Patents
Gas actuating device with reversible movement structure Download PDFInfo
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- CN113606033A CN113606033A CN202110839917.0A CN202110839917A CN113606033A CN 113606033 A CN113606033 A CN 113606033A CN 202110839917 A CN202110839917 A CN 202110839917A CN 113606033 A CN113606033 A CN 113606033A
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- Prior art keywords
- piston
- charge
- hole
- cylinder
- gas
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- 230000002441 reversible effect Effects 0.000 title claims abstract description 19
- 238000010304 firing Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 5
- 239000002360 explosive Substances 0.000 abstract description 6
- 230000000977 initiatory effect Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 27
- 239000002737 fuel gas Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C3/00—Wings
- B64C3/38—Adjustment of complete wings or parts thereof
- B64C3/56—Folding or collapsing to reduce overall dimensions of aircraft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Actuator (AREA)
Abstract
The invention provides a gas actuating device with a reversible movement structure, which comprises a cylinder, a piston, a charge and a firing element, wherein the charge and the firing element are respectively arranged at two ends of the cylinder, the piston is arranged in the cylinder and moves along the axial direction of the cylinder under the pushing of the charge at the two ends, and the piston rod does work outwards to drive wings to expand or fold. The invention fully utilizes the internal space, realizes the repeated movement of the initiating explosive device, realizes the bidirectional movement of the piston through the charging of the front cavity and the rear cavity under the conditions of ensuring high thrust, good long-term storage property, simple structure and high reliability, and can realize the expansion and the folding of the wings.
Description
Technical Field
The invention relates to a power source priming device, which is used for the fields of wing unfolding and folding of aircrafts such as unmanned planes and the like.
Background
The wings are important components of aircrafts such as unmanned planes and the like, the technology of folding the wings is widely adopted for saving assembly space, and the wings are unfolded after the aircrafts are launched to achieve a cruising flight state. In the prior art, a fuel gas actuating device is usually adopted as a power device for wing unfolding and mainly comprises an ignition element, a cylinder structural part, a charge and a piston. The ignition element is ignited to ignite the charge, the charge is combusted to generate high-pressure gas, and the gas expands to do work to push the piston to move. The gas actuating device has the advantages of large thrust, simple structure, good long-term storage performance, high reliability and the like relative to actuating devices such as wings, motors, steering engines and the like, but the gas actuating device can only actuate once and in one direction due to the one-time working characteristic of initiating explosive devices, so that the application range is limited.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a gas actuating device with a reversible movement structure, which can realize the forward unfolding and the reverse folding of wings, thereby realizing the unfolding and the folding of the wings.
The technical scheme adopted by the invention for solving the technical problems is as follows: a gas actuating device with a reversible movement structure comprises a cylinder, a piston, a charge and an ignition element.
The two ends of the cylinder are respectively provided with a charging element and a firing element, the piston is arranged in the cylinder and moves along the axial direction of the cylinder under the pushing of the charging elements at the two ends, and the piston rod applies work outwards to drive the wings to unfold or fold.
One end of the inner cavity of the cylinder body is open, and the other end of the inner cavity of the cylinder body is closed; the closed end is provided with two axial through holes, the piston rod extends out of the cylinder body from the central through hole, and the ignition element encapsulates the charge in the other through hole.
The inner cavity of the cylinder body is a stepped hole, the piston moves in a large-diameter section of the stepped hole, the open end of the large-diameter section is sealed by an end socket, an axial through hole is formed in the end socket, and the ignition element encapsulates the charge in the axial through hole; the small-diameter section internal diameter be less than the piston external diameter, small-diameter section lateral wall open has radial through-hole, the component of starting a fire encapsulates the powder charge in radial through-hole.
The piston rod is connected with the two pistons, the side wall of the middle part of the cylinder body is provided with an exhaust hole, the exhaust hole is positioned between the two pistons before the piston is pushed to move by the charge, and the exhaust hole is positioned between the piston and the charge after the piston is pushed to move by the charge.
The piston side wall is provided with an annular groove, and a sealing ring is arranged in the groove.
The side wall of the cylinder body connected with the piston rod is provided with an annular groove, and a sealing ring is arranged in the groove.
The invention has the beneficial effects that:
1. the invention fully utilizes the internal space and meets the principle of minimizing the envelope size of the aircraft;
2. according to the invention, by arranging the double ignition elements and the explosive charges, the multiple movement of the initiating explosive device is realized, and the characteristic that the initiating explosive device can only work once is broken through;
3. the invention realizes the bidirectional movement of the piston by charging the front cavity and the rear cavity under the conditions of ensuring high thrust, good long-term storage property, simple structure and high reliability, and can realize the expansion and folding of the wings;
4. the high-pressure gas injection piston is provided with a pressure relief structure, a charging point generates high-pressure gas at one end of the cavity of the cylinder body, the piston is pushed to move towards the other end, air at the other end of the cavity is compressed, the pressure is gradually increased, an obstruction effect is formed on the piston, and the acceleration of the movement of the piston is reduced, so that the in-place movement impact is reduced; when the piston crosses the exhaust hole of the cylinder, high-pressure gas in the cavity is exhausted from the exhaust hole, the movement speed of the piston is further reduced, and the impact of the piston in place is reduced.
Drawings
FIG. 1 is a schematic view of the initial state of the present invention;
FIG. 2 is a schematic diagram of the forward motion to position state of the present invention;
FIG. 3 is a schematic diagram of the present invention in a reverse motion in-place state;
FIG. 4 is a flow chart of the operation of the present invention;
in the figure, 1-ignition element, 2-charging agent, 3-end enclosure, 4-barrel structural part, 5-sealing element, 6-piston, 7-sealing element, 8-charging agent, 9-ignition element and 10-sealing element.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, which include, but are not limited to, the following examples.
The invention provides a gas actuating device capable of moving in a reversible way, which pushes a piston to move by high-pressure gas generated by burning of charged powder to do work outwards, and can discharge the gas after the piston moves in place for the first time so as to balance the pressure of a front chamber and a rear chamber; and can secondary ignition, utilize the gas to promote the firer device of piston reverse motion.
The invention provides a gas actuating device capable of moving in a reversible way, which comprises: the ignition device comprises an ignition element, a cylinder structural part, a charge, a piston and a sealing element. The barrel structural part is provided with a connecting structure and is fixedly connected with the projectile body; the piston is provided with a connecting pin and is connected with the missile wing unfolding device, and the piston can slide in the structural part of the cylinder body.
The first ignition element is excited to ignite the front chamber charge, gas is output, high pressure is generated in a cavity formed by the cylinder structural part and the piston, and the piston is pushed to move forwards until the piston moves to a specified position. By controlling the charging shape and the combustion surface, the output thrust can be controlled to adapt to the requirement of external load. Meanwhile, a closed space is formed in the rear chamber, air is compressed to generate damping, and excessive impact can be avoided to cause structural damage.
After the piston moves forwards to a designated position, high-pressure fuel gas in the front chamber accommodating cavity is discharged through a pressure relief hole arranged on the cylinder body, and the high-pressure fuel gas is balanced with the external pressure, so that the piston can move reversely.
If necessary, the second ignition element is activated at the appropriate time to ignite the back chamber charge and the piston is pushed by the gas in the opposite direction. The output thrust can be controlled by controlling the shape and combustion surface of the charge.
In the embodiment of the invention shown in fig. 1, a reversible gas-operated device is provided, which comprises a firing element 1 and a firing element 9, a charge 2 and a charge 8, a closure 3, a cylinder structure 4, a sealing element 5, a sealing element 7, a sealing element 10 and a piston 6.
The barrel structural member 4 is a hollow cylinder, one end of the barrel structural member is open and is sealed by the seal head 3, the center of the end face of the other end of the barrel structural member is provided with an axial through hole, and the side wall of the end is provided with a radial through hole; the piston 6 is positioned in the structural part of the cylinder, and a connected piston rod passes through the through hole and extends out of the structural part of the cylinder; the end socket is axially provided with a step through hole, the inner diameter of one end of the through hole facing the interior of the barrel structural part is smaller than that of the other end of the through hole, and the ignition element 1 compresses the charge 2 to the large-diameter section of the through hole; the radial through hole of 4 lateral walls of barrel structures be the step through-hole, the internal diameter of through-hole towards the inside one end of barrel structures is less than the internal diameter of the other end, the big diameter section at the through-hole with powder charge 8 compress tightly of ignition element 9.
The ignition element 1, the ignition element 9 and the end socket 3 are connected with the barrel structural member 4 through threads, flanges and other structures.
The piston rod is fixed with two pistons, the two pistons are located between two through holes of the barrel structural part, the through holes are communicated with the powder, the piston rod is sealed with the inner wall of the axial through hole of the end face of the barrel structural part through a sealing element 10, and the two pistons are respectively sealed with the inner wall of the barrel structural part through a sealing element 5 and a sealing element 7 to form a front closed cavity and a rear closed cavity.
The side wall of the cylinder structural part is provided with a through hole as an exhaust hole A1, no matter which direction the piston moves, the position of the exhaust hole is positioned between the two pistons before the piston moves, and the exhaust hole is positioned between the through hole for igniting the charge and the piston after the piston moves to the position.
When the gas actuating device moves forwards, the ignition element 1 ignites to ignite the charge 2, high-pressure gas is generated in the cavity at the left end of the structural part of the cylinder body, and the piston 6 is pushed to move rightwards; meanwhile, the air in the right cavity is compressed, the pressure is gradually increased, the piston 6 is blocked, and the acceleration of the movement of the piston 6 is reduced, so that the in-place expansion impact is reduced. When the sealing element 5 crosses the vent hole A1 on the cylinder structural member 4, high-pressure gas in the cavity at the left end is discharged, the movement speed of the piston 6 is reduced through the reverse thrust action of compressed air in the cavity at the right end, the expansion in-place impact is reduced again, and the expansion mechanism locks the in-place position. The gas actuating device works from the initial state (figure 1) to the opening state (figure 2), and the positive working of the gas actuating device is finished.
When the gas actuating device moves reversely, the ignition element 9 ignites to ignite the charge 8, high pressure is generated in the cavity at the right end to push the piston 6 to move reversely leftwards, and when the sealing element 7 passes through the exhaust hole A1 on the cylinder structural member 4, high-pressure gas in the cavity at the right end is discharged, and the movement speed of the piston 6 is reduced through the reverse pushing action of compressed air in the cavity at the left end, the expansion in-place impact is reduced, and the expansion mechanism is used for locking the piston in place. Thereby completing the reverse movement of the gas-operated device from the open state (fig. 2) to the in-position state (fig. 3).
In the above embodiment, the inner cavity of the cylinder structural member is a stepped hole, the inner diameter of the end near the piston rod extension is smaller than that of the piston movable section, and the radial through hole for communicating the charge is located in the small-diameter section.
As another embodiment of the invention, the through hole which is close to the extending end of the piston rod and is communicated with the explosive charge is an axial through hole which is positioned on the end surface of the structural part of the cylinder body.
The working principle of the invention is as follows: the gas actuating device generates high-pressure gas to push the piston to reciprocate through charging and burning at two sides, so that the missile wing is unfolded and folded, and the other side of the missile wing is used for compressing air in the closed containing cavity, so that the motion speed of the piston is reduced, and the impact in the motion process is reduced. The gas actuating device capable of moving reversely has the advantages of simple structure, small volume and small motion impact, and can ensure the stable attitude of the guided missile in the flying process.
Claims (6)
1. The gas actuating device with the reversible movement structure comprises a cylinder, a piston, a charge and a firing element, and is characterized in that the charge and the firing element are respectively arranged at two ends of the cylinder, the piston is arranged in the cylinder and moves axially along the cylinder under the pushing of the charge at the two ends, and the piston rod does work outwards to drive wings to expand or fold.
2. The gas actuating device with the reversible movement structure as claimed in claim 1, wherein one end of the inner cavity of the cylinder body is open and the other end is closed, the open end is closed by a sealing head, an axial through hole is formed in the sealing head, and the firing element encapsulates the charge in the axial through hole; the closed end is provided with two axial through holes, the piston rod extends out of the cylinder body from the central through hole, and the ignition element encapsulates the charge in the other through hole.
3. The gas actuating device with the reversible moving structure as claimed in claim 1, wherein the inner cavity of the cylinder is a stepped hole, the piston moves in a large-diameter section of the stepped hole, the open end of the large-diameter section is closed by a sealing head, an axial through hole is formed in the sealing head, and the ignition element encapsulates the charge in the axial through hole; the small-diameter section internal diameter be less than the piston external diameter, small-diameter section lateral wall open has radial through-hole, the component of starting a fire encapsulates the powder charge in radial through-hole.
4. A gas-powered apparatus with a reversible motion structure as claimed in claim 1, 2 or 3, wherein the piston rod is connected to two pistons, the side wall of the middle part of the cylinder is provided with an exhaust hole, the exhaust hole is located between the two pistons before the piston is pushed by the charge, and the exhaust hole is located between the piston and the charge after the piston is pushed by the charge.
5. A reversibly configurable gas-actuated apparatus as claimed in claim 1 or claim 2 or claim 3 or claim 4 wherein said piston has an annular recess in its side wall in which is mounted a sealing ring.
6. A gas-powered actuator of reversible movement structure as claimed in claim 1, 2, 3 or 4 wherein the side wall of the cylinder connected to the piston rod is provided with an annular groove in which a sealing ring is mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839917.0A CN113606033A (en) | 2021-07-22 | 2021-07-22 | Gas actuating device with reversible movement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839917.0A CN113606033A (en) | 2021-07-22 | 2021-07-22 | Gas actuating device with reversible movement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113606033A true CN113606033A (en) | 2021-11-05 |
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ID=78338216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110839917.0A Pending CN113606033A (en) | 2021-07-22 | 2021-07-22 | Gas actuating device with reversible movement structure |
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| Country | Link |
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| CN (1) | CN113606033A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274632A (en) * | 1969-02-20 | 1972-05-17 | Werkzeugmaschinenfabric Oerlik | A projectile |
| EP0157468A2 (en) * | 1984-02-14 | 1985-10-09 | Hilvenna Limited | Compressed gas ammunition for small arms |
| WO2010118738A2 (en) * | 2009-04-15 | 2010-10-21 | Knoefler Steffen | Free-piston internal combustion engine having intermittent free-piston lock |
| KR101437421B1 (en) * | 2013-04-25 | 2014-09-05 | 국방과학연구소 | Folding Wings Deployment Device |
| CN105737685A (en) * | 2016-02-18 | 2016-07-06 | 江西洪都航空工业集团有限责任公司 | Wing face double-direction double-position folding structure |
| CN107436113A (en) * | 2017-03-30 | 2017-12-05 | 内蒙动力机械研究所 | A kind of combustion gas pressurized strut of gas buffer |
| CN110873545A (en) * | 2018-09-02 | 2020-03-10 | 孝感定原电子科技有限公司 | Initiating explosive actuator |
| CN111734526A (en) * | 2020-07-09 | 2020-10-02 | 南京理工大学 | Firer actuator adopting low-detonation-velocity explosive charging to reduce subsidiary impact and pollution |
-
2021
- 2021-07-22 CN CN202110839917.0A patent/CN113606033A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1274632A (en) * | 1969-02-20 | 1972-05-17 | Werkzeugmaschinenfabric Oerlik | A projectile |
| EP0157468A2 (en) * | 1984-02-14 | 1985-10-09 | Hilvenna Limited | Compressed gas ammunition for small arms |
| WO2010118738A2 (en) * | 2009-04-15 | 2010-10-21 | Knoefler Steffen | Free-piston internal combustion engine having intermittent free-piston lock |
| KR101437421B1 (en) * | 2013-04-25 | 2014-09-05 | 국방과학연구소 | Folding Wings Deployment Device |
| CN105737685A (en) * | 2016-02-18 | 2016-07-06 | 江西洪都航空工业集团有限责任公司 | Wing face double-direction double-position folding structure |
| CN107436113A (en) * | 2017-03-30 | 2017-12-05 | 内蒙动力机械研究所 | A kind of combustion gas pressurized strut of gas buffer |
| CN110873545A (en) * | 2018-09-02 | 2020-03-10 | 孝感定原电子科技有限公司 | Initiating explosive actuator |
| CN111734526A (en) * | 2020-07-09 | 2020-10-02 | 南京理工大学 | Firer actuator adopting low-detonation-velocity explosive charging to reduce subsidiary impact and pollution |
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