CN107380412A - A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter - Google Patents
A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter Download PDFInfo
- Publication number
- CN107380412A CN107380412A CN201710388231.8A CN201710388231A CN107380412A CN 107380412 A CN107380412 A CN 107380412A CN 201710388231 A CN201710388231 A CN 201710388231A CN 107380412 A CN107380412 A CN 107380412A
- Authority
- CN
- China
- Prior art keywords
- depopulated helicopter
- mast
- engined
- twin
- output end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D35/00—Transmitting power from power plant to propellers or rotors; Arrangements of transmissions
Abstract
The invention discloses a kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter, transmission system includes the reduction box being connected with mast, and the output end bevel gear wheel being connected with the mast is provided with reduction box；Output end bevel gear wheel is connected with two meshed input bevel pinions, and two input bevel pinions are connected to engine, and the both sides that two input bevel pinions are located at mast are symmetrical arranged；Depopulated helicopter includes twin-engined depopulated helicopter deceleration transmission systems.The present invention is symmetrical arranged the input bevel pinion for being respectively connected with engine in the both sides of mast, both active forces to output end bevel gear wheel are identical, avoid output end bevel gear wheel from producing the phenomenon of unbalance stress, avoid the abrasion of output end bevel gear wheel, service life is longer, securely and reliably；Depopulated helicopter provided by the invention, securely and reliably, make the service life of depopulated helicopter longer, it is cost-effective.
Description
Technical field
The present invention relates to unmanned air vehicle technique field, more particularly to a kind of twin-engined depopulated helicopter deceleration transmission systems and
Depopulated helicopter.
Background technology
To improve the security and reliability of depopulated helicopter, twin-engined configurations have turned into the weight in depopulated helicopter market
Selecting, especially technical grade depopulated helicopter, its rotor is long, it is big to sweep away area and the equipment of the higher economic value of carrying,
Once engine breaks down, consequence is hardly imaginable, so the depopulated helicopter of a twin-engined configurations engine wherein
During failure, another can work on, and depopulated helicopter is had safety guarantee to a certain extent.
But existing twin-engined depopulated helicopter reduction boxes slow down, design is all the same side power input, such as Fig. 1 institutes
Show, enter action edge transmission by the way of the transmission of ratchet 1, simple in construction, such a structure causes the unidirectional tooth in reduction box 4
Torsional forces suffered by wheel 1 and gear shaft 2 is the torsional forces sum of two engine output, and because by unilateral load, therefore
Unbalance stress, the abrasion of output end gear wheel 3 is more exacerbated, the time one is grown, and output end gear wheel 3 easily occurs and deforms, wears
The even situation of tired broken teeth, substantially reduces the service life of unmanned rotary wing helicopter, even results in the generation of security incident.
In order to solve the above problems, at present, the reduction box of some depopulated helicopters sets one and one-way driving gear (active
Axle) symmetrically arranged driven shaft.But although driven shaft is necessarily serving the effect of neutralizing counter balance torque power in energy degree,
But actually driving shaft, driving gear bear the torsional forces from engine, and driven shaft, driven gear are compared to the former
Suffered torsional forces is much smaller, due to the difference of stress, uses for a long time, and both still have certain deviation, i.e., not yet
Thoroughly solves the problems, such as unbalance stress.
Moreover, at present, two angular contact bearings of primary load bearing are attached separately on two different parts (on reduction case
One, reduction case covers one), because two parts have mismachining tolerance, adjustment during along with two component assemblies
Error, deviation accumulation make the concentricity of two angular contact bearings less desirable, cause after installing mast, mast can
It can offset or by stress caused by two angular contact bearing decentractions, reduce making for mast and two angular contact bearings
With the life-span, and influence the flight reappearance of helicopter.
The content of the invention
It is an object of the invention to propose a kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter, with
Solve unbalance stress present in prior art, aggravate the technical problem of the abrasion of gear.
To use following technical scheme up to this purpose, the present invention：
A kind of twin-engined depopulated helicopter deceleration transmission systems, including the reduction box being connected with mast, it is described to subtract
The output end bevel gear wheel being connected with the mast is provided with fast case；
The output end bevel gear wheel is connected with two meshed input bevel pinions, two inputs
Bevel pinion is connected to engine, and the both sides that two input bevel pinions are located at the mast are symmetrically set
Put.
Further, the interior angular contact bearings provided with least two for connecting the mast of the reduction box, two
The individual angular contact bearing is connected with the reduction box, and is arranged concentrically.
Further, two angular contact bearings, two angular contact bearing difference positions are provided with the reduction box
Top and bottom in the reduction box.
Further, the mast is provided with the round nut for the spacing angular contact bearing axial displacement.
The present invention also provides a kind of depopulated helicopter, including above-mentioned twin-engined depopulated helicopter deceleration transmission systems.
A kind of twin-engined depopulated helicopter deceleration transmission systems provided by the invention, in use, not only in rotor master
The both sides of axle are symmetrical arranged input bevel pinion, meanwhile, two input bevel pinions are respectively connected with engine, play master
The effect of moving axis, both active forces to output end bevel gear wheel are identical, and then make it that the structure of mast both sides is identical, and
The active force born is identical, thoroughly realizes the effect of " symmetrical ".
The twin-engined depopulated helicopter deceleration transmission systems, not only symmetrical configuration, and two symmetrical structures are big to output end
Active force caused by bevel gear is also symmetrical (identical), therefore, output end bevel gear wheel can be avoided to produce the phenomenon of unbalance stress, kept away
Exempt from the abrasion of output end bevel gear wheel, the service life of product is longer, securely and reliably.
A kind of depopulated helicopter provided by the invention, by using above-mentioned twin-engined depopulated helicopter deceleration transmission systems
System, solves the problems, such as the abrasion of output end bevel gear wheel, securely and reliably, makes the service life of depopulated helicopter longer, saves
Cost.
Brief description of the drawings
Fig. 1 is the structural representation of depopulated helicopter deceleration transmission system in the prior art；
Fig. 2 is the structural representation of twin-engined depopulated helicopter deceleration transmission systems provided in an embodiment of the present invention.
In figure：
1st, ratchet；2nd, gear shaft；3rd, output end gear wheel；4th, reduction box；5th, mast；6th, output end auger tooth
Wheel；7th, input bevel pinion；8th, angular contact bearing；9th, round nut.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
As shown in Fig. 2 the present embodiments relate to the art drive systems of aircraft, it specifically provides a kind of pair and started
Machine depopulated helicopter deceleration transmission system, the system have made improvement compared with prior art, to power input mode, and it includes
The reduction box 4 being connected with mast 5, the reduction box 4 is interior to be provided with the output end bevel gear wheel being connected with the mast 5
6, it is preferred that output end bevel gear wheel 6 with mast 5 is concentric fixes, in reduction box 4, output end bevel gear wheel 6 exists
It is used to drive mast 5 to rotate under the driving of power, mast 5 is engine power output, through reduction box 4.
The output end bevel gear wheel 6 is connected with two meshed input bevel pinions 7, two inputs
End bevel pinion 7 is connected to engine (not shown), and two input bevel pinions 7 are located at the rotor
The both sides of main shaft 5 are symmetrical arranged.Two input bevel pinions 7 are connected to engine, make the torsional forces of two engines
It is delivered to respectively on two input bevel pinions 7, two such input bevel pinion 7 has been respectively subjected to separate unit engine
Output torque, it plays a part of driving shaft, in addition, two input bevel pinions 7 are nibbled with output end bevel gear wheel 6 respectively
Closing, both active forces to output end bevel gear wheel 6 are identical, the stress equalization of output end bevel gear wheel 6, compared with prior art,
The stressing conditions of output end bevel gear wheel 6 are improved, cancelling out each other for power is realized, reduces gear wear, the improvement of the system
The technology of gear wear caused by the moment of torsion force Relatively centralized that gear is born when solving the transmission of ratchet 1 in the prior art
Problem.
In addition, the symmetrically arranged structure in both sides that two input bevel pinions 7 are located at the mast 5 is set
Meter, realizes the symmetrical of system architecture, adds the stability of transmission system, the service life of system is extended, using more
Securely and reliably, production cost is reduced, improves practicality.
When specifically used, two input bevel pinions 7 rotate at a high speed under the drive of two engines respectively, rotating speed phase
With and direction of rotation conversely, because two input bevel pinions 7 engage with output end bevel gear wheel 6 respectively, so, two are defeated
Enter to hold bevel pinion 7 while drive output end bevel gear wheel 6 to rotate, and then output end bevel gear wheel 6 drives mast 5 to revolve
Turn, that is, realize power transmission.
The embodiment of the present invention further defines that at least two are provided with the reduction box 4 is used to connect mast 5
Angular contact bearing 8, two angular contact bearings 8 are connected with the reduction box 4, and are arranged concentrically.Two are arranged concentrically
Angular contact bearing 8 is commonly mounted on reduction box 4, on same part (on reduction box 4), is different from the prior art
Two angular contact bearings be arranged on two different parts (one on reduction case, reduction case covers one),
It the advantage is that, in the absence of alignment error, greatly increase the installation concentricity of two angular contact bearings 8, improve angular contact
The installation accuracy of bearing 8, the perpendicularity of mast 5 and horizontal plane is ensure that, make the use of mast 5 more stable, extend
The service life of mast 5 and two angular contact bearings 8, ensure that the flight reappearance of helicopter.
Explanation is needed further exist for, two angular contact bearings 8, two corner connections are provided with the reduction box 4
Contact bearing 8 is located at the top and bottom in the reduction box 4 respectively.The upper/lower terminal of mast 5 passes through two settings respectively
The angular contact bearing 8 of top and bottom in reduction box 4 is connected with the reduction box 4.
Need further exist for explaining, the mast 5, which is provided with, is used for the spacing axial displacement of angular contact bearing 8
Round nut 9.Angular contact bearings 8 carry out installation positioning, ensure that the stability of angular contact bearing 8, at the same realize it is most right
The axial displacement of angular contact bearing 8 it is spacing, ensure that the concentricity of two angular contact bearings 8, stability is stronger, makes mast
5 is more stable.
The present invention also provides a kind of depopulated helicopter, including twin-engined depopulated helicopter deceleration transmission systems described above
System.By using twin-engined depopulated helicopter deceleration transmission systems, the service life of depopulated helicopter can be made longer, and it is raw
Production is more cost-effective.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area
Personnel would not require any inventive effort the other embodiments that can associate the present invention, and these modes are fallen within
Within protection scope of the present invention.
Claims (5)
1. a kind of twin-engined depopulated helicopter deceleration transmission systems, it is characterised in that including subtracting with what mast (5) was connected
Fast case (4), the reduction box (4) is interior to be provided with the output end bevel gear wheel (6) being connected with the mast (5)；
The output end bevel gear wheel (6) is connected with two meshed input bevel pinions (7), two inputs
End bevel pinion (7) is connected to engine, and two input bevel pinions (7) are located at the mast (5)
Both sides be symmetrical arranged.
2. twin-engined depopulated helicopter deceleration transmission systems according to claim 1, it is characterised in that the reduction box
(4) at least two angular contact bearings (8) for being used to connect the mast (5), two angular contact bearings (8) are provided with
It is connected, and is arranged concentrically with the reduction box (4).
3. twin-engined depopulated helicopter deceleration transmission systems according to claim 1, it is characterised in that the reduction box
(4) two angular contact bearings (8) are provided with, two angular contact bearings (8) are respectively in the reduction box (4)
Top and bottom.
4. twin-engined depopulated helicopter deceleration transmission systems according to claim 1, it is characterised in that the rotor master
Axle (5) is provided with the round nut (9) for spacing angular contact bearing (8) axial displacement.
5. a kind of depopulated helicopter, it is characterised in that including the twin-engined depopulated helicopters as described in claim any one of 1-4
Deceleration transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388231.8A CN107380412A (en) | 2017-05-27 | 2017-05-27 | A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710388231.8A CN107380412A (en) | 2017-05-27 | 2017-05-27 | A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter |
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| Publication Number | Publication Date |
|---|---|
| CN107380412A true CN107380412A (en) | 2017-11-24 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710388231.8A Pending CN107380412A (en) | 2017-05-27 | 2017-05-27 | A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357685A (en) * | 2018-02-08 | 2018-08-03 | 天津曙光天成科技有限公司 | A kind of dynamical system and unmanned helicopter |
| CN109677599A (en) * | 2019-02-22 | 2019-04-26 | 一飞智控(天津)科技有限公司 | DCB Specimen unmanned plane dynamical system |
| CN109677598A (en) * | 2018-12-29 | 2019-04-26 | 一飞智控(天津)科技有限公司 | Helicopter deceleration device |
| CN109915565A (en) * | 2019-02-22 | 2019-06-21 | 一飞智控(天津)科技有限公司 | Twin-engined and vehicle transmission system is realized based on retarder |
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| CN103791029A (en) * | 2014-03-03 | 2014-05-14 | 青岛宏百川金属精密制品有限公司 | Transmission system of unmanned rotor wing helicopter |
| CN103910066A (en) * | 2014-03-28 | 2014-07-09 | 吉林大学 | Parallel dual-engine coaxial unmanned helicopter |
| CN104908936A (en) * | 2014-03-13 | 2015-09-16 | 中国科学院沈阳自动化研究所 | Unmanned helicopter |
| CN105966633A (en) * | 2016-05-13 | 2016-09-28 | 北京航空航天大学 | Transmission system for combined aircraft |
| RU2601470C1 (en) * | 2015-09-09 | 2016-11-10 | Дмитрий Сергеевич Дуров | Unmanned convertible high-speed helicopter |
| CN207015580U (en) * | 2017-05-27 | 2018-02-16 | 天津曙光天成科技有限公司 | A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter |
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2017
- 2017-05-27 CN CN201710388231.8A patent/CN107380412A/en active Pending
Patent Citations (6)
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| CN103791029A (en) * | 2014-03-03 | 2014-05-14 | 青岛宏百川金属精密制品有限公司 | Transmission system of unmanned rotor wing helicopter |
| CN104908936A (en) * | 2014-03-13 | 2015-09-16 | 中国科学院沈阳自动化研究所 | Unmanned helicopter |
| CN103910066A (en) * | 2014-03-28 | 2014-07-09 | 吉林大学 | Parallel dual-engine coaxial unmanned helicopter |
| RU2601470C1 (en) * | 2015-09-09 | 2016-11-10 | Дмитрий Сергеевич Дуров | Unmanned convertible high-speed helicopter |
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| CN207015580U (en) * | 2017-05-27 | 2018-02-16 | 天津曙光天成科技有限公司 | A kind of twin-engined depopulated helicopter deceleration transmission systems and depopulated helicopter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108357685A (en) * | 2018-02-08 | 2018-08-03 | 天津曙光天成科技有限公司 | A kind of dynamical system and unmanned helicopter |
| CN108357685B (en) * | 2018-02-08 | 2022-11-08 | 天津凤凰智能科技有限公司 | Power system and unmanned helicopter |
| CN109677598A (en) * | 2018-12-29 | 2019-04-26 | 一飞智控(天津)科技有限公司 | Helicopter deceleration device |
| CN109677599A (en) * | 2019-02-22 | 2019-04-26 | 一飞智控(天津)科技有限公司 | DCB Specimen unmanned plane dynamical system |
| CN109915565A (en) * | 2019-02-22 | 2019-06-21 | 一飞智控(天津)科技有限公司 | Twin-engined and vehicle transmission system is realized based on retarder |
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Effective date of registration: 20220929 Address after: Room 105, Building 9, Area B3 (formerly Area 2 of Ronghui Business Park), Enterprise Headquarters Base, Binhai-Zhongguancun Science and Technology Park, Economic and Technological Development Zone, Binhai New Area, Tianjin 300457 Applicant after: Tianjin Phoenix Intelligent Technology Co.,Ltd. Address before: Floor 1, block B, No.3, Tengfei Road, Junliang City, Dongli District, Tianjin Applicant before: TIANJIN SHUGUANG TIANCHENG TECHNOLOGY Co.,Ltd. |