CN104670493A - High-speed braking and positioning device of helicopter propeller - Google Patents
High-speed braking and positioning device of helicopter propeller Download PDFInfo
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- CN104670493A CN104670493A CN201510104055.1A CN201510104055A CN104670493A CN 104670493 A CN104670493 A CN 104670493A CN 201510104055 A CN201510104055 A CN 201510104055A CN 104670493 A CN104670493 A CN 104670493A
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Abstract
The invention discloses a high-speed braking and positioning device of a helicopter propeller. The device is mainly used for quickly positioning and braking the propeller when a helicopter fails in air so as to avoid the situation that a launch window is blocked by blades of the propeller during launching of a dual-purpose parachute or ejection bail-out. The device is characterized by comprising a coarse positioning and braking device and a fine positioning and braking device which are mounted on a rotary shaft and can be integrally combined or independent respectively, and quick braking and accurate positioning purposes can be achieved simultaneously when the coarse positioning and braking device and the fine positioning and braking device are used simultaneously. The device has the functions that the shaft rotating at a low speed or a high speed is positioned and stops rotating immediately when a coarse positioning and braking check block and a fine positioning and braking check block quickly move towards the coarse positioning and braking device or the fine positioning and braking device and successively or simultaneously block the coarse positioning and braking device or the fine positioning and braking device, and can perform ejection bail-out, launch a rocket and open the dual-purpose parachute.
Description
Technical field: the invention discloses a kind of autogyro screw propeller high speed brake positioning device
Background technology: whole world autogyro in-flight failure, parking; screw propeller spin safe falling can only be leaned on; but some faults are uncontrollable; although screw propeller spins but lapse rate is very fast, accident-proneness, due to the inertia that screw propeller is huge; not effectively, fast braking device; one parachute jumping can be cut away head by screw propeller is piecemeal, does not parachute, can fall to death; or fall down and pound into pulverizing; even on fire from explosion, fatal crass, parachute jumping is all dead end with not parachuting; some countries; take measure is that screw propeller is exploded, and then parachutes, protection aviator.On November 25th, 2014, our company discloses an invention for a kind of autogyro propeller brake, application number is 2014106897222, this invention can make screw propeller stop fast, but can not position brake, if launch double-purpose umbrella or ejection bailout, propeller blade may block launch window, make transmitting or launch unsuccessfully, parachute jumping and autogyro soft landing may be had a strong impact on, for head it off, our company discloses a kind of autogyro screw propeller high speed brake positioning device and guarantees that launch window does not affect by propeller blade, make transmitting, launching all can success.Mention double-purpose umbrella in literary composition namely: on September 23rd, 2014, our company discloses an invention for a kind of common, dual-purpose parachute of altimetric compensation, and application number is 2014104913907.
Due to autogyro, aloft fly, accident, out of control time; the remaining time is very valuable, and protection aviator, protection aircraft, take parachute jumping, launch or launching parachute; screw propeller must be allowed to stop, due to the huge inertia of screw propeller, if adopt traditional approach brake at once; possible screw propeller does not also stop; aircraft has just been impacted surface burst and has been burnt, and screw propeller to stop fast, locates, and can not produce huge concussion; this is a difficult problem, but meaning very! Our company has applied for a kind of autogyro propeller brake before, and this device can realize Quick brake damping requirement, but can not meet Quick brake and high fix requirement simultaneously.The brake gear be arranged on axle is large; to surround the angle in circular segment of axle large; then position brake precision is high; if but during axle High Rotation Speed; brake gear can be caused not to be blocked; just rotate; can not brake in time, if be arranged on the device on axle to surround the angle in circular segment of axle little, can brake in time; but brake precision is low; axle one reverses, and just loses positioning precision, and helicopter blade may block rocket launching, launch window; cause launch, plane parachute abortive launch, can not reach protection chaufeur, aircraft object.
Summary of the invention
The invention discloses a kind of autogyro screw propeller high speed brake positioning device, this device characteristic is made up of coarse positioning brake gear and fine positioning brake gear, install on the rotary shaft, coarse positioning brake gear and fine positioning brake gear can be integrated, can be independent separately, the effect of this device is, make low speed, the axle of High Rotation Speed, brake block to coarse positioning brake gear or fine positioning brake gear quick travel at coarse positioning brake block and fine positioning, when successively or simultaneously stopping coarse positioning brake gear or fine positioning brake gear, axle is located, and stop operating at once.Can ejection bailout be performed, fire a rocket, open double-purpose umbrella.
Described coarse positioning brake gear or fine positioning brake gear are two diverse locations on same device when being integrated, respective independent time be two devices, use simultaneously and can reach not only Quick brake but also can accurately locate.
Described coarse positioning brake gear and fine positioning position brake device are manufactured by metal, can be aluminum alloy, corrosion-resistant steel, comparatively hard metal or alloy material manufacture.This device is annulus envelope shape, be arranged on axle, this device center, axle place, it is less that coarse positioning brake gear occupies angle in circular segment on axle, it is larger that fine positioning brake gear occupies angle in circular segment on axle, on corresponding annulus overcoat, inverse features is that this annulus coating device has large breach and small gap, and large breach is used for fast rough brake, and small gap is used for fine positioning brake.Movable arm axially perpendicular movement time, the coarse positioning brake block that movable arm is installed and the fine positioning block that brakes insert large breach, small gap, or insert large small gap after rubbing with brake gear outside face, and axle is stopped the rotation.
Described movable arm is cylinder piston rod or electromagnetic valve core chain bar, piston rod, electromagnetic valve core chain bar is installed with coarse positioning brake block and fine positioning and brakes block, or be installed with power-transfer clutch, power-transfer clutch is installed with brake block and fine positioning of coarse positioning and brakes block.
Described registration device and screw propeller are parked in this position, can fire a rocket, ejection seat do not stop by propeller blade.
Accompanying drawing illustrates:
Fig. 1 is that coarse positioning brake gear is separated schematic diagram with fine positioning brake gear.
Fig. 2, Fig. 3, Fig. 4 are that coarse positioning brake gear and fine positioning brake gear are integrated schematic diagram.
Fig. 5 is that coarse positioning brake gear and fine positioning brake gear released state are arranged on schematic diagram on properller axle.
Fig. 6, Fig. 7, Fig. 8 are that coarse positioning brake gear and fine positioning brake gear are integrated and are arranged on schematic diagram on properller axle.
Coarse positioning brake gear and fine positioning brake gear on Fig. 9 autogyro prop shaft, to brake schematic diagram with coarse positioning brake block and the additional device of block and fine positioning that brake.
Figure 10, Figure 11 are that brake block and fine positioning of coarse positioning brake gear and fine positioning brake gear and coarse positioning brakes block and additional device birds-eye view
In figure: properller high speed brake positioning device is arranged on autogyro prop shaft, 1 is coarse positioning brake gear, and 2 is fine positioning brake gear, 3 is mounting hole, 4 is prop shaft or other assembly axis, and 5 is coarse positioning brake block, and 6 is fine positioning brake block, 7,8 is cylinder piston rod or electromagnetic valve core chain bar, 9 is cylinder or electromagnetic valve, and 10 is cylinder or electromagnetic valve anchor fitting, and 11 is clutch coil, 12 is large breach, and 13 is small gap.
Embodiment one:
In helicopter flight process, unexpected tenesmus out of control, under urgent chaufeur by button make electromagnetic valve 9 electric, the coarse positioning brake block 5 of link on electromagnetic valve core chain bar 7, the fine positioning brake block 6 of link on electromagnetic valve core chain bar 8 is released, enter large breach 12, coarse positioning brake gear 1 on prop shaft is stopped, meanwhile, fine positioning brake block 6 enters the small gap 13 of fine positioning brake gear 2, this action coarse positioning brake block 5 insert large breach 12 or fine positioning brake block 6 enter small gap 13, screw propeller one completes these actions within enclosing, huge rotor inertia passes to cylinder or electromagnetic valve anchor fitting 10 buffer-braking, screw propeller is stopped operating fast, now ejection seat, rocket launching window does not stop, can ejection bailout, launch double-purpose umbrella, autogyro and the landing of chaufeur safety, whole process is quick, smooth, safety.
Embodiment two: gunship be hit by a bullet catch fire uncontrollable in the air, autogyro drops rapidly, in emergency circumstances chaufeur by button make properller high speed brake positioning device clutch coil 11 electric, the coarse positioning brake block 5 that power-transfer clutch is installed, fine positioning brake block 6 inserts large breach 12 and small gap 13 at once, screw propeller one completes these actions within enclosing, rotor inertia passes to cylinder or electromagnetic valve anchor fitting 10 buffer-braking, screw propeller is stopped operating fast, now ejection seat launch window does not stop, ejection bailout chaufeur safety is landed, whole process is quick, smooth, complete instantaneously.
Claims (3)
1. the invention discloses a kind of autogyro screw propeller high speed brake positioning device, this device characteristic is made up of coarse positioning brake gear (1) and fine positioning brake gear (2), be arranged on S. A. (4), coarse positioning brake gear (1) and fine positioning brake gear (2) can be integrated, can be independent separately, the effect of this device is, make low speed, the axle (4) of High Rotation Speed, brake block (6) to coarse positioning brake gear (1) or fine positioning brake gear (2) quick travel at coarse positioning brake block (5) and fine positioning, when successively or simultaneously stopping coarse positioning brake gear (1) or fine positioning brake gear (2), axle (4) is located and stops operating at once.
2. be characterised in that described coarse positioning brake gear (1) or fine positioning brake gear (2) are two diverse locations on same device when being integrated according to claim 1 autogyro screw propeller high speed brake positioning device, respective independent time be two devices.
3. being characterised in that described device is manufactured by metal according to claim 1 autogyro screw propeller high speed brake positioning device, can be aluminum alloy, corrosion-resistant steel, comparatively hard metal or alloy material manufacture; This device is annulus envelope shape, be arranged on axle (4), this device center, axle (4) place, it is less that coarse positioning brake gear (1) occupies angle in circular segment on axle (4), and it is larger that fine positioning brake gear (2) occupies angle in circular segment on axle (4).On corresponding annulus overcoat, inverse features is this annulus coating device has large breach (12) and small gap (13), and large breach (12) is for coarse positioning brake, and small gap (13) brakes for fine positioning; Movable arm axially perpendicular movement time, coarse positioning brake block (5) that movable arm is installed inserts large breach (12), small gap (13) with the fine positioning block (6) that brakes, or through inserting large breach (12) small gap (13) with brake gear (1), (2) outside face after rubbing, axle (4) is stopped the rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104055.1A CN104670493A (en) | 2015-03-10 | 2015-03-10 | High-speed braking and positioning device of helicopter propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104055.1A CN104670493A (en) | 2015-03-10 | 2015-03-10 | High-speed braking and positioning device of helicopter propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104670493A true CN104670493A (en) | 2015-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510104055.1A Pending CN104670493A (en) | 2015-03-10 | 2015-03-10 | High-speed braking and positioning device of helicopter propeller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017028310A1 (en) * | 2015-08-20 | 2017-02-23 | 深圳市大疆创新科技有限公司 | Propeller automatic stop control system and control method for unmanned aerial vehicle, and unmanned aerial vehicle |
| CN109577950A (en) * | 2018-12-04 | 2019-04-05 | 贵州航天凯山石油仪器有限公司 | The improved mounting structure of slip ring in a kind of optic fiber gyroscope inclinometer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69810025T2 (en) * | 1997-08-01 | 2003-07-10 | Agusta Spa | Helicopter rotor brake |
| CN101348171A (en) * | 2007-04-10 | 2009-01-21 | 欧洲直升机德国有限责任公司 | Rotor brake for a rotary-wing aircraft |
| CN201516919U (en) * | 2009-11-10 | 2010-06-30 | 武汉船用机械有限责任公司 | Propeller shafting system locked shaft device |
| CN202240477U (en) * | 2011-10-11 | 2012-05-30 | 郝新浦 | Shoe type precise indexing brake |
| CN203655990U (en) * | 2013-11-18 | 2014-06-18 | 无锡市正阳机械有限公司 | Rotation fixing device |
-
2015
- 2015-03-10 CN CN201510104055.1A patent/CN104670493A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69810025T2 (en) * | 1997-08-01 | 2003-07-10 | Agusta Spa | Helicopter rotor brake |
| CN101348171A (en) * | 2007-04-10 | 2009-01-21 | 欧洲直升机德国有限责任公司 | Rotor brake for a rotary-wing aircraft |
| CN201516919U (en) * | 2009-11-10 | 2010-06-30 | 武汉船用机械有限责任公司 | Propeller shafting system locked shaft device |
| CN202240477U (en) * | 2011-10-11 | 2012-05-30 | 郝新浦 | Shoe type precise indexing brake |
| CN203655990U (en) * | 2013-11-18 | 2014-06-18 | 无锡市正阳机械有限公司 | Rotation fixing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017028310A1 (en) * | 2015-08-20 | 2017-02-23 | 深圳市大疆创新科技有限公司 | Propeller automatic stop control system and control method for unmanned aerial vehicle, and unmanned aerial vehicle |
| CN107000851A (en) * | 2015-08-20 | 2017-08-01 | 深圳市大疆创新科技有限公司 | The automatic dead stick control system of unmanned plane, control method and unmanned plane |
| CN109577950A (en) * | 2018-12-04 | 2019-04-05 | 贵州航天凯山石油仪器有限公司 | The improved mounting structure of slip ring in a kind of optic fiber gyroscope inclinometer |
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Application publication date: 20150603 |