CN104401489B - A kind of helicopter propeller brake - Google Patents
A kind of helicopter propeller brake Download PDFInfo
- Publication number
- CN104401489B CN104401489B CN201410689722.2A CN201410689722A CN104401489B CN 104401489 B CN104401489 B CN 104401489B CN 201410689722 A CN201410689722 A CN 201410689722A CN 104401489 B CN104401489 B CN 104401489B
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- cylinder
- gas
- propeller
- box
- brake
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Abstract
The invention discloses a kind of helicopter propeller brake, under the out-of-control condition such as this device is mainly used in helicopter air accident, catch fire, making propeller brake, driver and occupant take advantage of the occasion to parachute and escape, and are not otherwise scorched to death and will be thinly sliced by propeller; Described helicopter propeller brake is characterised by that gas manufactures box, and ignition control unit is constituted by cylinder, annular damping cylinder, air bag; Clutch presses igniting button on electrical equipment ignition control unit, or controlled gas manufacture box electrical equipment igniting by remote control, height sensor, or pull open machinery ignition switch, airbag aeration at once, cylinder piston rod connects brake block and stretches out, and blocks propeller blade or propeller shaft rotates, propeller rotation function is delivered on air cylinder annular damper cylinder piston, annular damper cylinder piston compressing gasbag, reaches braking damping effect, and driver and occupant can parachute escape.
Description
Technical field:
The invention discloses a kind of helicopter propeller brake
Background technology:
Whole world helicopter in-flight failure, stop, propeller spin safe falling can only be leaned on, but some faults are uncontrollable, though propeller spin lapse rate quickly, accident-proneness, due to the inertia that propeller is huge, not effectively, fast braking device, one parachute jumping can be cut away head by propeller is piecemeal, do not parachute, can fall to death, or fall down and pound into pulverizing, even on fire from explosion, fatal crass, parachuting and not parachuting is all dead end, well-done only Russia, they take way to be that propeller is exploded, then parachute, protection pilot, disclosure one helicopter propeller brake, make the quick stall of propeller, then pilot or passenger parachute escape.
Summary of the invention:
The invention discloses a kind of helicopter propeller brake
The invention discloses a kind of helicopter propeller brake, this device characteristic is in that to be made up of air bag, gas manufacture box, electrical equipment ignition control unit, cylinder, annular damping cavity.
Described air bag is arranged in annular damping cylinder for damping, and air bag manufactures box gas outlet with gas and is connected. Described airbag design circularizes damping cylinder interior space shape; maximum volume is less than the internal dischargeable capacity of annular damping cylinder; having check valve on air bag, when annular damper cylinder piston press pressure exceedes setting value, release gas decompression, increase damping stroke, protect air bag.
Described gas manufactures box and manufactures gas by lighting a fire to air bag, cylinder supply, and described igniting is electrical equipment or mechanical ignition.
Described gas manufactures box and manufactures gas by lighting a fire to air bag, cylinder supply; Described gas manufactures box has cylinder gas to manufacture box and airbag gas manufacture box; Cylinder gas manufactures box in cylinder bottom, or is integrated with cylinder;Airbag gas manufactures box in annular damper cylinder piston, or is arranged on other appropriate place, and cylinder gas manufacture box can merge with airbag gas manufacture box can also be each independent; When cylinder gas manufacture box merges with airbag gas manufacture box, air bag has gas outlet to pass through check valve and cylinders, when gasbag pressure exceedes threshold values again to cylinder charge propulsion cylinder piston-advance; Described gas manufactures electrical equipment igniting, mechanical ignition switch on box.
Described electrical equipment ignition control unit is characterized by that controlling gas manufactures box igniting, manufactures gas, and described ignition control unit is arranged on helicopter head and is easy to the position of operation; Having button, remote control, height sensor on electrical equipment ignition control unit, each of which independently controls gas and manufactures the igniting of box electrical equipment; Electrical equipment ignition control unit includes guidance panel, remote control, highly sensing, reception, main circuit board and battery etc.; Guidance panel, remote control, highly sensing, reception, battery etc., with main circuit board by electrically connecting. Remote control, it is sensed as optional function.
Described cylinder characteristic is to be manufactured box by gas to provide gas driven piston motion, and piston rod connects brake block, and cylinder is vertical or horizontal installation.
Described annular damping cylinder comprises annular damper cylinder piston, annular damper cylinder, and annular damper cylinder piston does circulatory motion in annular damper cylinder; Internal limited location closed ring or open the shape of a hoof of a mouth in inner circle with internal diameter for length along radial direction.
Described a kind of helicopter propeller brake is arranged on helicopter top, appropriate location, brake gear center, propeller rotating shaft place, make that vertical cylinder piston rod connects brake block to stretch out, block propeller blade to make to stop the rotation, or horizontal air cylinder piston rod stretches out block and blocks block on propeller shaft, or insertion propeller shaft makes axle stop this rotation in keyway, huge inertia due to propeller, by piston rod, moment of torsion is delivered on brake gear annular damper cylinder piston, annular damper cylinder piston press air bag produces damping decelerating effect, propeller stops the rotation, pilot and passenger can parachute escape, piston rod top is surrounded by rubber or bakelite, increases elasticity.
It is the place deposited and produce gaseous matter that described gas manufactures box, these materials are mainly Hydrazoic acid,sodium salt (NaN3) or ammonium nitrate (NH4NO3) or 5-Aminotetrazole or nitroguanidine, gas be produced to airbag aeration after these substance decomposition, air bag is provided with relief valve, when brake gear annular damper cylinder piston press air bag, detect that air bag internal gas pressure is too big, air valve can be automatically opened up, discharge portion gas. Described gas main component is N2 or other a small amount of innocuous gas.
The principles of chemistry: when electrical equipment ignition control unit performs ignition order, in gas manufacture box, material can be decomposed rapidly to react and be produced a large amount of N2 gas, and gas is filled with rapidly in air bag through metal mesh filter, cooling. NaN3 decomposes aeration speed up to 88.9m/s) nitroguanidine decomposes aeration speed up to 7650m/s, is full of the needs of air bag, cylinder in enough meeting 0.1 second.
Bag material: outer surface is made by the durable sturdy material of canvas etc, internal layer is made by air tight good springiness, sturdy material;
Described gas manufactures box material: light, solid, high pressure resistant, metal.
Cylinder block material: aluminum or aluminium section bar or rustless steel; Piston rod material: rustless steel
Annular damping cylinder: rustless steel
Accompanying drawing illustrates:
Fig. 1 is helicopter propeller blade brake gear side view.
Fig. 2 is helicopter propeller blade brake gear top view.
Fig. 3 is helicopter propeller shaft brake gear side view.
Fig. 4 is helicopter propeller shaft brake gear top view.
Fig. 5 is helicopter propeller shaft brake gear A cylinder top direction view.
Fig. 6 is the brake of helicopter propeller shaft block or axis hole brake gear view.
Fig. 7 is helicopter propeller brake annular damper cylinder piston top view.
In figure: 1 is the brake block that helicopter propeller brake cylinder piston rod connects, and 2 be cylinder piston rod, 3 is that brake gear is vertical or lateral cylinder; 4 be brake gear vertically or lateral cylinder piston, 5 is brake gear annular damper cylinder piston, 6 is brake gear base installing hole, 7 is annular shock-absorption air bag on brake gear, 8 import and export for brake gear propeller shaft, 9 is annular damper cylinder, 10 manufacture box for gas, 10.1 manufacture the igniting of box electrical equipment for gas, 10.2 manufacture box mechanical ignition switch for gas, and 11 is brake gear annular damping cylinder, 12 is helicopter propeller shaft, 13 is annular damping cylinder, and 14 is brake block on axle, and 15 is keyway on propeller shaft.
Detailed description of the invention:
Embodiment one
Helicopter takes off execution task process from base, aircraft is hit by a bullet on fire, driver makes gas manufacture 10.1 electrical equipment igniting on box 10 by button under desperation, or pull open 10.2 mechanical ignition switches, air bag 7 is inflated at once, the brake block 1 connected on vertical cylinder 3 piston rod 2 stretches out and makes propeller blade block to stop the rotation, or horizontal air cylinder 3 piston rod 2 stretches out block 1 and blocks block 14 on propeller shaft, or on insertion propeller shaft in keyway 15, make axle 12 stop this to rotate, huge inertia due to propeller, it is delivered on annular damper cylinder piston 5 by 2 moments of torsion of piston rod, annular damper cylinder piston 5 extruding gasbag 7 produces cushioning effect, propeller stops the rotation at once, whole process was less than 1 second, pilot and combatant can parachute escape.
Embodiment two: in gunship course of battle, driver is injured, aircraft flame-out in flight of being hit by a bullet is uncontrollable, helicopter drops rapidly, helicopter brake gear gas is made to manufacture 10.1 igniting on box 10 by remote control, air bag 7 is inflated at once, the brake block 1 connected on vertical cylinder 3 piston rod 2 stretches out and makes propeller blade block to stop the rotation, or horizontal air cylinder 3 piston rod 2 stretches out block 1 and blocks block 14 on propeller shaft, or on insertion propeller shaft in keyway 15, make axle 12 stop this to rotate, huge inertia due to propeller, it is delivered on annular damper cylinder piston 5 by 2 moments of torsion of piston rod, annular damper cylinder piston 5 extruding gasbag 7 produces cushioning effect, propeller stops the rotation at once, remote control distributor person's ejection bailout escape again.
Claims (5)
1. a helicopter propeller brake, this device characteristic is in that to be made up of air bag (7), gas manufacture box (10), electrical equipment ignition control unit, cylinder (3), annular damping cylinder (13);
Described a kind of helicopter propeller brake is arranged on helicopter top, propeller shaft (12) is in appropriate location, brake gear center, the brake block (1) connected on vertical cylinder piston rod is made to stretch out, block propeller blade to make to stop the rotation, or horizontal air cylinder piston rod stretches out brake block (1) and blocks block on propeller shaft (14) or insert in the upper keyway (15) of propeller shaft (12) and make propeller shaft (12) stop the rotation, huge inertia due to propeller, by cylinder piston rod, moment of torsion is delivered on brake gear annular damper cylinder piston (5), annular damper cylinder piston (5) extruding gasbag (7) produces damping decelerating effect, propeller stops the rotation,
Described air bag (7) is arranged in annular damping cylinder (13) for damping, and air bag (7) manufactures box (10) gas outlet with gas and is connected;
Described gas manufactures box (10) and manufactures gas by lighting a fire to air bag (7), cylinder (3) supply; Described gas manufactures electrical equipment igniting (10.1), mechanical ignition (10.2) switch on box;
Described electrical equipment ignition control unit controls gas and manufactures box (10) igniting, manufactures gas, and described electrical equipment ignition control unit is arranged on helicopter head and is easy to the position of operation;
Described cylinder (3) is manufactured box (10) by gas and provides gas driven piston (4) motion, and piston rod connects brake block (1), and cylinder is vertical or horizontal installation;
Described annular damping cylinder (13) comprises annular damper cylinder piston (5), annular damper cylinder (9), and annular damper cylinder piston (5) does circulatory motion in annular damper cylinder (9).
2. a kind of helicopter propeller brake according to claim 1; it is characterized in that: described air bag has check valve on (7); release gas decompression, increase damping stroke, protection air bag (7) when annular damper cylinder piston (5) squeeze pressure exceedes setting value.
3. a kind of helicopter propeller brake according to claim 1, is characterized in that: described gas manufactures box (10) has cylinder gas to manufacture box and airbag gas manufacture box; Cylinder gas manufactures box in cylinder bottom, or is integrated with cylinder; Airbag gas manufactures box (10) in annular damper cylinder piston (5), and cylinder gas manufactures box (10) and merges or each independent with airbag gas manufacture box.
4. a kind of helicopter propeller brake according to claim 1, it is characterized in that: described air bag (7) is designed to annular damping cylinder (13) interior space shape, maximum volume is less than the internal dischargeable capacity of annular damping cylinder (13).
5. a kind of helicopter propeller brake according to claim 3, it is characterized in that: when cylinder gas manufacture box merges with airbag gas manufacture box, air bag (7) has gas outlet to pass through check valve and cylinders, advances to cylinder (3) inflation propelling piston bar (2) when air bag (7) pressure exceedes threshold values again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689722.2A CN104401489B (en) | 2014-11-25 | 2014-11-25 | A kind of helicopter propeller brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689722.2A CN104401489B (en) | 2014-11-25 | 2014-11-25 | A kind of helicopter propeller brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104401489A CN104401489A (en) | 2015-03-11 |
| CN104401489B true CN104401489B (en) | 2016-06-08 |
Family
ID=52639182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410689722.2A Expired - Fee Related CN104401489B (en) | 2014-11-25 | 2014-11-25 | A kind of helicopter propeller brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104401489B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101750874B1 (en) * | 2017-02-28 | 2017-06-26 | (주)에코코 | Boat for elimination of water grass |
| CN111846248A (en) * | 2020-07-27 | 2020-10-30 | 北京京东乾石科技有限公司 | Unmanned aerial vehicle and unmanned aerial vehicle escape method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084473A (en) * | 1993-01-04 | 1994-03-30 | 李明熹 | The aerial system of helping out of distress out of control of autogyro |
| FR2714884A1 (en) * | 1994-01-11 | 1995-07-13 | Agusta Eli Srl | Helicopter rotor braking device. |
| CN101157385A (en) * | 2007-11-27 | 2008-04-09 | 谭生 | Helicopter |
| CN101973397A (en) * | 2010-10-21 | 2011-02-16 | 西北工业大学 | Wing rotating and locking and unlocking device for rotor-wing aircraft |
| KR20110086920A (en) * | 2010-01-25 | 2011-08-02 | 정재원 | Automatic cutting blades to survive a hellicopter pilot |
| CN202038453U (en) * | 2011-03-18 | 2011-11-16 | 西北工业大学 | Telescopic locking and unlocking device for rotation and location of rotating wing |
| CN203612213U (en) * | 2013-11-13 | 2014-05-28 | 银川上河图新技术研发有限公司 | Safe landing device for high-altitude helicopter fault shutdown |
-
2014
- 2014-11-25 CN CN201410689722.2A patent/CN104401489B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084473A (en) * | 1993-01-04 | 1994-03-30 | 李明熹 | The aerial system of helping out of distress out of control of autogyro |
| FR2714884A1 (en) * | 1994-01-11 | 1995-07-13 | Agusta Eli Srl | Helicopter rotor braking device. |
| CN101157385A (en) * | 2007-11-27 | 2008-04-09 | 谭生 | Helicopter |
| KR20110086920A (en) * | 2010-01-25 | 2011-08-02 | 정재원 | Automatic cutting blades to survive a hellicopter pilot |
| CN101973397A (en) * | 2010-10-21 | 2011-02-16 | 西北工业大学 | Wing rotating and locking and unlocking device for rotor-wing aircraft |
| CN202038453U (en) * | 2011-03-18 | 2011-11-16 | 西北工业大学 | Telescopic locking and unlocking device for rotation and location of rotating wing |
| CN203612213U (en) * | 2013-11-13 | 2014-05-28 | 银川上河图新技术研发有限公司 | Safe landing device for high-altitude helicopter fault shutdown |
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| Publication number | Publication date |
|---|---|
| CN104401489A (en) | 2015-03-11 |
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Granted publication date: 20160608 Termination date: 20161125 |