CN105584626A - Automatic variable-pitch propeller, fixing base assemblies thereof and aircraft with same - Google Patents
Automatic variable-pitch propeller, fixing base assemblies thereof and aircraft with same Download PDFInfo
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- CN105584626A CN105584626A CN201610129573.3A CN201610129573A CN105584626A CN 105584626 A CN105584626 A CN 105584626A CN 201610129573 A CN201610129573 A CN 201610129573A CN 105584626 A CN105584626 A CN 105584626A
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- Prior art keywords
- cylinder
- blade
- piston
- conveyor screw
- pitch propeller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
- B64C11/40—Blade pitch-changing mechanisms fluid, e.g. hydraulic automatic
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
The invention discloses an automatic variable-pitch propeller, fixing base assemblies thereof and an aircraft with the same. The fixing base assemblies are assembled on a rotor or a power shaft of a motor (11) of the aircraft. Each fixing base assembly is provided with a paddle (1). The automatic variable-pitch propeller rotates, the paddles (1) generate centrifugal force, a spiral body (5) together with a piston (6) is subjected to a centrifuging effect of the paddles (1) so that the piston (6) slides out of an air cylinder (7), the spiral body (5) gradually extends out from a spiral hole (12), the incidence angles of the paddles (1) change under the matching control of the spiral body (5) and the spiral hole (12), and a vacuum chamber is formed between the air cylinder (7) and an exhaust hole when the piston (6) slides out of the air cylinder (7). The rotating speed is lowered, and when the centrifugal force of the paddles (1) is lowered, the spiral body (5) together with the piston (6) slides into the air cylinder (7) under the vacuum suction of the vacuum chamber and pulls the paddles (1) to rotate back, and therefore the incident angles are changed.
Description
Technical field
The present invention relates to aircraft field, particularly a kind of from variable-pitch propeller and its configuration holder assembly and assemblingThe aircraft of this device.
Background technology
Well-known helicopter and gyroplane are all flown by screw, and the wind loading rating of multiaxis gyroplane is far below directlyThe machine of liter, what helicopter adopted is feather screw, is the pitch lift fuselage by change screw, and multiaxis gyroplane is adoptedBe constant pitch airscrew, so can only by change motor speed promote aircraft, if feather screw is installed to multiaxisThough on gyroplane, can improve wind resistance power due to feather propeller arrangement complexity also can to aircraft increase a lot of unstable because ofElement. The screw of helicopter is too complicated in a word, and the screw of multiaxis gyroplane again can not displacement.
Summary of the invention
The object of the invention is to solve the deficiency of above-mentioned technology, the screw that a kind of displacement voluntarily simple in structure is provided withFrom the holder assembly of variable-pitch propeller be equipped with the aircraft from variable-pitch propeller.
For achieving the above object, the present invention by the following technical solutions.
The centrifugal force that described automatic pitch propeller produces while relying on blade rotation changes pitch, described automatic adjustable-pitch spiralOar is made up of holder, blade, conveyor screw, piston, door and seal cover etc.
Described blade is linked and packed with piston by conveyor screw, gap bridge part or is directly connected dress by conveyor screw with pistonJoin, conveyor screw is provided with helicoid and lock hole for assembling mutually with piston or gap bridge part, and conveyor screw and its helicoid are to controlThe principal element of blade change in angle of attack.
Described holder is provided with cylinder and exhaust outlet, described at least one cylinder, at least one exhaust outlet, exhaust outlet withCylinder communicates, and conveyor screw injects in cylinder together with piston and in cylinder, has the space slidably reciprocating.
On described piston, device has sealing ring, the tight sliding fit of piston and cylinder, and described cylinder is sliding back and forth for pistonMoving, for controlling the flexible of blade.
Described door is provided with the threaded hole matching with spirochetal disconnected cross section and pitch, and door is enclosed within on conveyor screw alsoWith the cylinder assembling on holder, described door is assemblied in cylinder port place, and door slides in threaded hole turnover for conveyor screwTime the control break blade angle of attack, described each cylinder is respectively equipped with a door.
Described seal cover is assemblied in the exit of exhaust outlet, is equipped with sealing gasket, seal cover between seal cover and steam ventAnd the assembling of piston and holder make cylinder and exhaust outlet between form one section of closed chamber, outwards slide in by cylinder at pistonTime closed chamber just become vacuum chamber. Described seal cover is provided with individual event air bleeding valve, the sky of individual event air bleeding valve for taking out, in exhaust casingGas, for regulating the vacuum of vacuum chamber.
Preferably N cylinder on described holder shares the exhaust outlet of, between each cylinder and exhaust outlet byGas passage connection communicates.
Preferably N cylinder on described holder is not connected, and each cylinder is respectively provided with exhaust outlet.
Preferably, revolve conveyor screw and plunger designs is integrated, blade is linked and packed by gap bridge part and conveyor screw, instituteState the lock hole that gap bridge part is provided with assembling corresponding to conveyor screw.
Preferably, revolve conveyor screw and gap bridge part is designed to one, conveyor screw one end be linked and packed the blade other end and companyConnect Piston assembling, described piston is provided with the lock hole of assembling corresponding to conveyor screw.
Preferably, revolve conveyor screw, gap bridge part and blade design and be integrated, Piston assembling is in the conveyor screw termination of blade.
The present invention separately provides a kind of holder assembly from variable-pitch propeller, and described holder assembly is exactly above-mentioned from displacementAssembly after screw dismounting blade, described holder assembly extracts cylinder and exhaust at the individual event air bleeding valve by seal coverAir in mouthful, regulates under the condition of vacuum of vacuum chamber, and what can configure different size is above-mentioned from variable-pitch propellerBlade.
It is a kind of from variable-pitch propeller aircraft that the present invention separately provides, and on the rotor of described aircraft or line shaft, assemblesHave above-mentioned holder assembly, described aircraft configuration at least a set of holder assembly, and all each self-chamberings of every cover holder assemblyIs furnished with the above-mentioned blade from variable-pitch propeller.
Described automatic pitch propeller rotation, blade produce centrifugal, and conveyor screw is the centrifugal action at blade together with pistonUnder piston is slided outside cylinder, conveyor screw stretches out gradually from threaded hole, the blade angle of attack coordinates conveyor screw and threaded holeUnder control, change, when piston slides outside cylinder, between cylinder and steam vent, form vacuum chamber. Rotating speed reduce, blade fromWhen mental and physical efforts reduce, thereby conveyor screw pulls blade convolution simultaneously to sliding in cylinder together with piston under the pull of vacuum of vacuum chamberThe variation angle of attack.
The invention has the advantages that.
1, simple in structure.
2, reduce motor load, using electricity wisely, prolongation continuation of the journey.
3, automatic adjustable-pitch, without any displacement transmission mechanism.
4, sturdy durable.
5, change conveniently.
6, improve wind resistance.
7, for multiaxis rotor owner oar, helicopter tail rotor, the fixed-wing oar etc. that advances, of many uses.
8, be well suited for old machine constant pitch airscrew upgrading and become variable-pitch propeller.
Brief description of the drawings
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1, Fig. 2, Fig. 3 be the present invention between variable-pitch propeller blade, gap bridge part, conveyor screw and piston combination clothScore of the game solution schematic perspective view.
Fig. 4, Fig. 5 are the holder schematic perspective view of the present invention from variable-pitch propeller.
Fig. 6, Fig. 9 are the schematic perspective views that the present invention is assembled together from variable-pitch propeller (two leaf oars) and motor.
Fig. 7, Figure 10 are the schematic perspective view of the present invention from variable-pitch propeller.
Fig. 8, Figure 11 are the generalized section of the present invention from variable-pitch propeller.
Figure 12 is the schematic perspective view that the present invention is assembled together from variable-pitch propeller (three leaf oars) and motor.
Figure 13 is the schematic perspective view that the present invention is assembled together from variable-pitch propeller (four leaf oars) and motor.
Figure 14, Figure 15 are the schematic perspective views of holder assembly of the present invention.
In figure, blade (1), gap bridge part (2), helicoid (3), sealing ring (4), conveyor screw (5), piston (6), cylinder (7),Exhaust outlet (8), door (9), seal cover (10), motor (11), threaded hole (12), sealing gasket (13), sealing gasket (14).
Detailed description of the invention
One, automatic pitch propeller detailed description of the invention
The centrifugal force that described automatic pitch propeller produces while relying on blade (1) rotation changes pitch, described automatic adjustable-pitch spiralOar is made up of with seal cover (10) etc. holder, blade (1), conveyor screw (5), piston (6), door (9).
Described blade (1) is linked and packed or is directly passed through conveyor screw by conveyor screw (5), gap bridge part (2) and piston (6)(5) and piston (6) be linked and packed, conveyor screw (5) be provided with helicoid (3) with for assembling mutually with piston (6) or gap bridge part (2)Lock hole, conveyor screw (5) is just as the very large bolt of same pitch, and conveyor screw (5) is to control blade (1) with its helicoid (3)The principal element of change in angle of attack.
Described holder is provided with cylinder (7) and exhaust outlet (8), described at least one cylinder (7), at least one exhaust outlet(8), exhaust outlet (8) communicates with cylinder (7), and conveyor screw (5) injects in cylinder (7) and has in cylinder (7) together with piston (6)The space slidably reciprocating, the upper device of described piston (6) has sealing ring (4), piston (6) and closely sliding fit of cylinder (7), described gasCylinder (7) is for the slidably reciprocating of piston (6), for controlling the flexible of blade (1).
Described door (9) is provided with the threaded hole (12) matching with disconnected cross section and the pitch of conveyor screw (5), door (9)Be enclosed within conveyor screw (5) and above and with the cylinder (7) on holder assemble, described door (9) is assemblied in cylinder (7) mouthful place, door (9)For conveyor screw (5) control break blade (1) angle of attack in the time that threaded hole (12) turnover is slided, described each cylinder (7) respectively fillsIs furnished with a door (9).
Described seal cover (10) is assemblied in the exit of exhaust outlet (8), is equipped with close between seal cover (10) and steam ventPacking (13), the assembling of seal cover (10) and piston (6) and holder make cylinder (7) and exhaust outlet (8) between form one sectionClosed chamber, in the time that piston (6) outwards slides in by cylinder (7), closed chamber just becomes vacuum chamber. Described seal cover (10) is provided withIndividual event air bleeding valve, individual event air bleeding valve is used for the air of taking out, exhaust casing (7) is interior, for regulating the vacuum of vacuum chamber.
Automatic pitch propeller is selected embodiment one (implementing holder mode, as Fig. 4, Fig. 6, Fig. 7, Fig. 8)
N on a described holder cylinder (7) shares the exhaust outlet (8) of, between each cylinder (7) and exhaust outlet (8)Connect and communicate by sealing gasket (14).
Automatic pitch propeller is selected embodiment two (implementing holder mode, as Fig. 5, Fig. 9, Figure 10, Figure 11)
Preferably N the cylinder (7) on described holder is not connected, and each cylinder (7) is respectively provided with exhaust outlet (8).
Automatic pitch propeller selects embodiment three (to implement blade (1), gap bridge part (2), conveyor screw (5) and piston (6)Between relation and layout type, as Fig. 1)
The described conveyor screw (5) that revolves is designed to one with piston (6), and blade (1) is connected dress by gap bridge part (2) with conveyor screw (5)Join, described gap bridge part (2) is provided with the lock hole with the corresponding assembling of conveyor screw (5).
Automatic pitch propeller selects embodiment four (to implement blade (1), gap bridge part (2), conveyor screw (5) and piston (6)Between relation and layout type, as Fig. 2)
Described conveyor screw (5) and the gap bridge part (2) of revolving is designed to one, conveyor screw (5) one end be linked and packed blade (1) other end withConnect piston (6) assembling, described piston (6) is provided with the lock hole with the corresponding assembling of conveyor screw (5).
Automatic pitch propeller selects embodiment five (to implement blade (1), gap bridge part (2), conveyor screw (5) and piston (6)Between relation and layout type, as Fig. 3)
Described conveyor screw (5), gap bridge part (2) and the blade (1) of revolving is designed to one, and piston (6) is assemblied in the conveyor screw of blade (1)(5) termination.
Two, from the holder assembly detailed description of the invention of variable-pitch propeller
The present invention separately provides a kind of holder assembly from variable-pitch propeller, and described holder assembly is exactly above-mentioned from variable-pitch propellerAssembly after oar dismounting blade (1), as Figure 14, Figure 15. Described holder assembly is in the individual event exhaust of passing through on seal cover (10)Valve extracts the air in cylinder (7) and exhaust outlet (8), regulates under the condition of vacuum of vacuum chamber, can configure different chisThe very little above-mentioned blade from variable-pitch propeller (1).
Three, from the concrete embodiment of variable-pitch propeller aircraft
It is a kind of from variable-pitch propeller aircraft that the present invention separately provides, and on the motor of described aircraft (11) rotor or line shaft, assemblesHave above-mentioned holder assembly, described aircraft configuration at least a set of holder assembly, and all each self-chamberings of every cover holder assemblyIs furnished with the above-mentioned blade from variable-pitch propeller (1). In the time implementing holder assembly and motor (11) rotor or line shaft assembling, GuDetermining mode has N kind, as screw is fixed, button bit is fixing buckle and fix etc. with choosing.
The rotation of described automatic pitch propeller, blade (1) produce centrifugal, conveyor screw (5) together with piston (6) in blade (1)Centrifugal action under piston (6) is slided outside cylinder (7), conveyor screw (5) stretches out gradually from threaded hole (12), blade(1) angle of attack changed in conveyor screw (5) and coordinating under control of threaded hole (12), gas when piston (6) slides outside cylinder (7)Between cylinder (7) and steam vent, form vacuum chamber. When the centrifugal force of rotating speed reduction, blade (1) reduces, in the pull of vacuum of vacuum chamberLower conveyor screw (5) pulls blade (1) thereby the convolution variation angle of attack together with piston (6) to the interior slip of cylinder (7) simultaneously.
Claims (9)
1. from a variable-pitch propeller, it is characterized in that: it is centrifugal that described automatic pitch propeller produces while relying on blade rotationPower changes pitch, and described automatic pitch propeller is made up of holder, blade, conveyor screw, piston, door and seal cover etc.;
Described blade is by conveyor screw, gap bridge part and piston is linked and packed or be directly linked and packed by conveyor screw and piston, spiral shellRevolve body and be provided with helicoid and lock hole for assembling mutually with piston or gap bridge part, conveyor screw and its helicoid are to control blade to meetThe principal element that angle changes;
Described holder is provided with cylinder and exhaust outlet, described at least one cylinder, at least one exhaust outlet, exhaust outlet and cylinderCommunicate, conveyor screw injects in cylinder together with piston and in cylinder, has the space slidably reciprocating;
On described piston, device has sealing ring, the tight sliding fit of piston piston and cylinder, and described cylinder is sliding back and forth for pistonMoving, for controlling the flexible of blade;
Described door is provided with the threaded hole matching with spirochetal disconnected cross section and pitch, and door is enclosed within on conveyor screw and with solidCylinder assembling in reservation, described door is assemblied in cylinder port place, and door passes in and out slip time control for conveyor screw in threaded holeSystem changes the blade angle of attack, and described each cylinder is respectively equipped with a door;
Described seal cover is assemblied in the exit of exhaust outlet, between seal cover and steam vent, is equipped with sealing gasket, seal cover and workPlug and the assembling of holder make cylinder and exhaust outlet between form one section of closed chamber, close when outside slip in by cylinder at pistonEnvelope chamber just becomes vacuum chamber.
2. automatic pitch propeller according to claim 1, is characterized in that: described seal cover is provided with individual event exhaustValve, the air of individual event air bleeding valve for taking out, in exhaust casing, for regulating the vacuum of vacuum chamber.
3. automatic pitch propeller according to claim 1, is characterized in that: the cylinder of the N on described holder sharesThe exhaust outlet of one, is connected and is communicated by gas passage between each cylinder and exhaust outlet.
4. automatic pitch propeller according to claim 1, is characterized in that: the cylinder of the N on described holder is not mutuallyCommunicate, each cylinder is respectively provided with exhaust outlet.
5. automatic pitch propeller according to claim 1, is characterized in that: described in revolve conveyor screw and plunger designs is oneBody, blade is linked and packed by gap bridge part and conveyor screw, and described gap bridge part is provided with the lock hole of assembling corresponding to conveyor screw.
6. automatic pitch propeller according to claim 1, is characterized in that: described in revolve conveyor screw and gap bridge part is designed toOne, conveyor screw one end be linked and packed the blade other end be connected Piston assembling, described piston is provided with assembling corresponding to conveyor screwLock hole.
7. automatic pitch propeller according to claim 1, is characterized in that: described in revolve conveyor screw, gap bridge part and bladeBe designed to one, Piston assembling is in the conveyor screw termination of blade.
8. a holder assembly for automatic pitch propeller, is characterized in that: described holder assembly wants 1 according to power exactlyTo the assembly automatically becoming described in 7 any one after oar screw dismounting blade;
The air of described holder assembly in the individual event air bleeding valve by seal cover extracts cylinder and exhaust outlet, regulatesUnder the condition of the vacuum of vacuum chamber, can configure the above-mentioned blade from variable-pitch propeller of different size.
9. an automatic pitch propeller aircraft, is characterized in that: on the rotor of described aircraft or line shaft, assembleThe holder assembly of having the right described in requirement 8, described aircraft configuration at least a set of holder assembly, and every cover holder groupPart is all equipped with separately according to power and wants the blade from variable-pitch propeller described in 1 to 7 any one;
Described automatic pitch propeller rotation, blade produce centrifugal, and conveyor screw makes under the centrifugal action of blade together with pistonPiston slides outside cylinder, and conveyor screw stretches out gradually from threaded hole, and the blade angle of attack is the control that coordinates with threaded hole at conveyor screwUnder change, when piston slides outside cylinder, between cylinder and steam vent, form vacuum chamber;
When the centrifugal force of rotating speed reduction, blade reduces, under the pull of vacuum of vacuum chamber, conveyor screw is slided in cylinder together with pistonThereby the moving blade convolution variation angle of attack that simultaneously pulls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129573.3A CN105584626A (en) | 2015-12-29 | 2016-03-08 | Automatic variable-pitch propeller, fixing base assemblies thereof and aircraft with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015211143189 | 2015-12-29 | ||
| CN201521114318 | 2015-12-29 | ||
| CN201610129573.3A CN105584626A (en) | 2015-12-29 | 2016-03-08 | Automatic variable-pitch propeller, fixing base assemblies thereof and aircraft with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105584626A true CN105584626A (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610129573.3A Pending CN105584626A (en) | 2015-12-29 | 2016-03-08 | Automatic variable-pitch propeller, fixing base assemblies thereof and aircraft with same |
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| CN (1) | CN105584626A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161326A (en) * | 2017-06-06 | 2017-09-15 | 上海航天控制技术研究所 | The rudder face attachment structure that a kind of high accuracy is easily assembled and disassembled |
| CN108045560A (en) * | 2017-12-04 | 2018-05-18 | 惠阳航空螺旋桨有限责任公司 | One kind is used for propeller spacing lock construction |
| CN109018431A (en) * | 2018-08-13 | 2018-12-18 | 燕山大学 | A kind of main rotor testing machine auto-bank unit double helix locker |
| CN110834717A (en) * | 2019-11-21 | 2020-02-25 | 北京航空航天大学 | Self-adaptive propeller device |
| CN112965512A (en) * | 2021-03-26 | 2021-06-15 | 北京理工大学 | Unmanned aerial vehicle wind-resistant control method based on propeller model |
| US20220217908A1 (en) * | 2021-01-13 | 2022-07-14 | Deere & Company | Automated adjustable angle of incidence fan for cleaning sugarcane |
-
2016
- 2016-03-08 CN CN201610129573.3A patent/CN105584626A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107161326A (en) * | 2017-06-06 | 2017-09-15 | 上海航天控制技术研究所 | The rudder face attachment structure that a kind of high accuracy is easily assembled and disassembled |
| CN108045560A (en) * | 2017-12-04 | 2018-05-18 | 惠阳航空螺旋桨有限责任公司 | One kind is used for propeller spacing lock construction |
| CN109018431A (en) * | 2018-08-13 | 2018-12-18 | 燕山大学 | A kind of main rotor testing machine auto-bank unit double helix locker |
| CN110834717A (en) * | 2019-11-21 | 2020-02-25 | 北京航空航天大学 | Self-adaptive propeller device |
| US20220217908A1 (en) * | 2021-01-13 | 2022-07-14 | Deere & Company | Automated adjustable angle of incidence fan for cleaning sugarcane |
| US11778947B2 (en) * | 2021-01-13 | 2023-10-10 | Deere & Company | Automated adjustable angle of incidence fan for cleaning sugarcane |
| CN112965512A (en) * | 2021-03-26 | 2021-06-15 | 北京理工大学 | Unmanned aerial vehicle wind-resistant control method based on propeller model |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160518 |