CN107559383A - A kind of coaxial rotor transmission device with power dividing twice - Google Patents

A kind of coaxial rotor transmission device with power dividing twice Download PDF

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Publication number
CN107559383A
CN107559383A CN201710587470.6A CN201710587470A CN107559383A CN 107559383 A CN107559383 A CN 107559383A CN 201710587470 A CN201710587470 A CN 201710587470A CN 107559383 A CN107559383 A CN 107559383A
Authority
CN
China
Prior art keywords
gear
transmission
power
biasing
twice
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.)
Pending
Application number
CN201710587470.6A
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Chinese (zh)
Inventor
靳广虎
鲍和云
陆凤霞
高鹏
朱如鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Publication date
Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN201710587470.6A priority Critical patent/CN107559383A/en
Publication of CN107559383A publication Critical patent/CN107559383A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of coaxial rotor transmission device with power dividing twice, be a kind of power shunt twice coaxial rotor output, rotating speed is equal and turns to opposite actuating unit.The transmission device is using coaxial double-rotor helicopter main reducing gear transmission system as object, and Aviation small product size is small, requirement in light weight and high reliability, proposes the transmission device that a kind of power shunts twice.It is driven as a result of dynamic branch twice, and transmission system is all driven using simple fixed shaft gear train, is technically easily realized.The transmission device can be widely used in fields such as Medium or severe type Helicopter Transmission System, naval vessel transmission systems.

Description

A kind of coaxial rotor transmission device with power dividing twice
Technical field
The invention belongs to helicopter reducer drive technology field, specifically a kind of close coupled type with power dividing twice DCB Specimen transmission device.
Background technology
The typical configurations of Helicopter Main Reducer transmission system are " bevel gear commutation-and car-Gear Planet Transmission output ".From hair Motivation is input to main rotor output, is typically made up of 3~5 grades of gear drives, in most cases by Gear Planet Transmission as last One-level, also have using two-stage Gear Planet Transmission or compound planetary.For the Multi-stage transmission system containing Planetary Gear Transmission, The gearratio tolerance zone of Planetary Gear Transmission is restricted by of both structure and intensity;Meanwhile excessive gearratio makes planet The transmission efficiency of decelerator declines.Therefore, to meet the power to weight ratio of Helicopter Transmission System, transmission efficiency and reliability requirement, Mitigate the weight and volume of transmission system as far as possible, the gearratio of the Planetary Gear Transmission in active service Helicopter Transmission System compared with It is small, typically 3 or so.For coaxial rotor transmission system, to realize around the upper of same axis a positive and a negative rotation The requirement of lower two secondary rotors, which employs the kind of drive that star gear system and differential gear train are combined.Although it is also used The form of power dividing, but the problem of due to the structural strength of Planetary Gear Transmission, efficiency, its transmission is smaller;Meanwhile The existing revolution of planetary gear has rotation again, therefore complicated, supports the bearing of planetary gear to be easily damaged.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of coaxial rotor with power dividing twice to be driven dress Put, the torque-splitting transmission twice of the transmission device, all using fixed shaft gear train, technology is more ripe, therefore good reliability;Together When afterbody transmission it is bigger, advantageously reduce the weight of transmission system, this has very to Large-power High-Speed transmission system Important meaning.
For achieving the above object, the present invention uses following technical scheme:
A kind of coaxial rotor transmission device with power dividing twice, including power input and power output portion Point;The power input includes input bevel gear, and the input bevel gear and first bevel gear are meshed, and realize transmission side To change;First bevel gear is fixed on same power transmission shaft with the first roller gear;First roller gear is simultaneously with second Roller gear, the 3rd roller gear are meshed;Second roller gear and the 4th roller gear are fixed on same power transmission shaft, the Three roller gears and the 5th roller gear are fixed on same power transmission shaft.
The power output part includes the first biasing surface gear and the second biasing surface gear.5th roller gear and 4th roller gear is meshed with the first biasing surface gear and the second biasing surface gear simultaneously;First biasing surface gear and second inclined It is identical to put the axis of face gear, up and down arrangement, wherein the axle of the second biasing surface gear is hollow shaft, the axle of the first biasing surface gear Passed through from the hollow shaft of the second biasing surface gear, so as to realize the dual output of power.
Transmission device has power dividing twice, is driven by roller gear, the power dividing twice of face gear, realizes load Shunting twice, reduce the gear teeth load and linear velocity born, reduce power to weight ratio, improve the efficiency and reliability of transmission system. The transmission of last gear stage is bigger, can effectively reduce transmission system weight.
Further, the power input quantity is one or more;When institute's power input quantity is multichannel When, the multichannel power input is uniformly arranged along the power output part.
Further, the power input quantity of stating is two-way, and the two-way power input is along the power Output par, c is uniformly arranged.
Further, the power input quantity of stating is three tunnels, and three road power input is along the power Output par, c is uniformly arranged.
A kind of coaxial rotor transmission device with power dividing twice of the present invention, with existing transmission device phase Than after the change that transmission direction is realized by Bevel Gear Transmission, employing roller gear shunting transmission, realizing the power of power Shunting so that the load of branch's transmission system reduces, therefore the gear structure limited by bearing capacity reduces, and reduces weight; Then it is driven again by biasing surface gear drive, carries out power dividing again, reduces the load of drive branch, and then reduce The volume and weight of gear.Meanwhile the gearratio of afterbody is very big, can effectively reduce whole transmission system volume and Weight.In addition, whole transmission system is arranged for level of approximation, therefore the height reduction of whole gear-box, be advantageous to structure design, The weight of reduction system.Finally, from the point of view of whole transmission system, it is driven as a result of dynamic branch twice, and transmission system All it is driven using simple fixed shaft gear train, is technically easily realized.The transmission device can be in Medium or severe type helicopter power train The fields such as system, naval vessel transmission system are widely used.
Brief description of the drawings
Fig. 1 is the structural representation that the single input of the present invention has the coaxial rotor transmission device of power dividing twice Figure;
Fig. 2 is the structural representation that the dual input of the present invention has the coaxial rotor transmission device of power dividing twice;
Fig. 3 is the structural representation of three coaxial rotor transmission devices of the input with power dividing twice of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, to a kind of coaxial rotor transmission device with power dividing twice proposed by the present invention It is described in detail.In the description of the invention, it is to be understood that term " left side ", " right side ", " top ", " bottom ", The orientation or position relationship of instructions such as " bottoms " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally Invent and simplify description, rather than the device or element of instruction or hint meaning there must be specific orientation, with specific side Position construction and operation, " first ", " second " etc. are not offered as the significance level of parts, therefore it is not intended that to the present invention's Limitation.The specific size used in the present embodiment technical scheme solely for the purpose of illustration, it is not intended to limit the protection model of the present invention Enclose.
As shown in figure 1, a kind of coaxial rotor transmission device with power dividing twice, including power input And power output part;The power input includes input bevel gear, the input bevel gear Z1With first bevel gear Z2Phase Engagement, realizes the change of transmission direction;First bevel gear Z2With the first roller gear Z3It is fixed on same power transmission shaft;First Roller gear Z3Simultaneously with the second roller gear Z4, the 3rd roller gear Z5It is meshed;Second roller gear Z4With the 4th Cylinder Gear Take turns Z6It is fixed on same power transmission shaft, the 3rd roller gear Z5With the 5th roller gear Z7It is fixed on same power transmission shaft.
The power output part includes the first biasing surface gear Z8With the second biasing surface gear Z9.5th Cylinder Gear Take turns Z7With the 4th roller gear Z6Simultaneously with the first biasing surface gear Z8With the second biasing surface gear Z9It is meshed;First biasing surface Gear Z8With the second biasing surface gear Z9Axis it is identical, up and down arrangement, wherein the second biasing surface gear Z9Axle be hollow shaft, First biasing surface gear Z8Axle from the second biasing surface gear Z9Hollow shaft in pass through, so as to realize the dual output of power.
As shown in Fig. 2 the coaxial rotor transmission device with power dividing twice of the present invention, can use two-way Power inputs;The configuration of each branch is identical, according to the analysis of design parameter and load character, in symmetrical or near symmetrical point Cloth.
As shown in figure 3, the coaxial rotor transmission device with power dividing twice of the present invention, can use three tunnels Power inputs;The configuration of three branches is identical, according to the analysis of design parameter and load character, in symmetrical or near symmetrical point Cloth.
Based on description of the preferred embodiment of the present invention, it should be apparent that the sheet being defined by the appended claims Invention is not limited only to the specific detail that is illustrated in specification above, without departing from present inventive concept or scope to this hair Bright many obviously change equally possible reaches the purpose of the present invention.

Claims (4)

1. a kind of coaxial rotor transmission device with power dividing twice, including power input and power output portion Point;Characterized in that, the power input includes input bevel gear, the input bevel gear(Z1)And first bevel gear (Z2)It is meshed, realizes the change of transmission direction;First bevel gear(Z2)With the first roller gear(Z3)It is fixed on same biography On moving axis;First roller gear(Z3)Simultaneously with the second roller gear(Z4), the 3rd roller gear(Z5)It is meshed;Second cylinder Gear(Z4)With the 4th roller gear(Z6)It is fixed on same power transmission shaft, the 3rd roller gear(Z5)With the 5th roller gear (Z7)It is fixed on same power transmission shaft;
The power output part includes the first biasing surface gear(Z8)With the second biasing surface gear(Z9);5th Cylinder Gear Wheel(Z7)With the 4th roller gear(Z6)Simultaneously with the first biasing surface gear(Z8)With the second biasing surface gear(Z9)It is meshed;The One biasing surface gear(Z8)With the second biasing surface gear(Z9)Axis it is identical, up and down arrangement, wherein the second biasing surface gear (Z9)Axle be hollow shaft, the first biasing surface gear(Z8)Axle from the second biasing surface gear(Z9)Hollow shaft in pass through, from And realize the dual output of power.
2. the coaxial rotor transmission device according to claim 1 with power dividing twice, it is characterised in that institute It is one or more to state power input quantity;When the power input quantity is multichannel, the multichannel power is defeated Enter part to be uniformly arranged along the power output part.
3. the coaxial rotor transmission device according to claim 1 with power dividing twice, it is characterised in that institute It is two-way to state power input quantity, and the two-way power input is uniformly arranged along the power output part.
4. the coaxial rotor transmission device according to claim 1 with power dividing twice, it is characterised in that institute It is three tunnels to state power input quantity, and three road power input is uniformly arranged along the power output part.
CN201710587470.6A 2017-07-18 2017-07-18 A kind of coaxial rotor transmission device with power dividing twice Pending CN107559383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710587470.6A CN107559383A (en) 2017-07-18 2017-07-18 A kind of coaxial rotor transmission device with power dividing twice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710587470.6A CN107559383A (en) 2017-07-18 2017-07-18 A kind of coaxial rotor transmission device with power dividing twice

Publications (1)

Publication Number Publication Date
CN107559383A true CN107559383A (en) 2018-01-09

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CN201710587470.6A Pending CN107559383A (en) 2017-07-18 2017-07-18 A kind of coaxial rotor transmission device with power dividing twice

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110562447A (en) * 2019-09-18 2019-12-13 南京航空航天大学 Coaxial reverse dual-rotor transmission device
CN111365413A (en) * 2020-02-27 2020-07-03 湖南工学院 High-power multi-input multi-output transmission device and assembly method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135442A (en) * 1990-02-12 1992-08-04 Lucas Western, Inc. Gear arrangement for transmitting torque through an angle
US20060192046A1 (en) * 2005-02-25 2006-08-31 The Boeing Company Aircraft capable of vertical and short take-off and landing
CN200999828Y (en) * 2007-01-09 2008-01-02 南京高精齿轮集团有限公司 Vertical type double split flow speed reducer
CN101708774A (en) * 2009-12-02 2010-05-19 南京航空航天大学 Combined shunting mechanism for transmission of face gears and herringbone gears of helicopter main transmission systems
CN103968003A (en) * 2014-05-20 2014-08-06 西北工业大学 Torque shunting transmission mechanism for helicopter main reducing gear
CN103979108A (en) * 2014-05-29 2014-08-13 合肥工业大学 Main reducer for coaxial dual-rotor high-speed helicopter with tension paddle
CN106394894A (en) * 2016-11-01 2017-02-15 中国航空动力机械研究所 Helicopter transmission system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5135442A (en) * 1990-02-12 1992-08-04 Lucas Western, Inc. Gear arrangement for transmitting torque through an angle
US20060192046A1 (en) * 2005-02-25 2006-08-31 The Boeing Company Aircraft capable of vertical and short take-off and landing
CN200999828Y (en) * 2007-01-09 2008-01-02 南京高精齿轮集团有限公司 Vertical type double split flow speed reducer
CN101708774A (en) * 2009-12-02 2010-05-19 南京航空航天大学 Combined shunting mechanism for transmission of face gears and herringbone gears of helicopter main transmission systems
CN103968003A (en) * 2014-05-20 2014-08-06 西北工业大学 Torque shunting transmission mechanism for helicopter main reducing gear
CN103979108A (en) * 2014-05-29 2014-08-13 合肥工业大学 Main reducer for coaxial dual-rotor high-speed helicopter with tension paddle
CN106394894A (en) * 2016-11-01 2017-02-15 中国航空动力机械研究所 Helicopter transmission system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110562447A (en) * 2019-09-18 2019-12-13 南京航空航天大学 Coaxial reverse dual-rotor transmission device
CN110562447B (en) * 2019-09-18 2020-12-11 南京航空航天大学 Coaxial reverse dual-rotor transmission device
CN111365413A (en) * 2020-02-27 2020-07-03 湖南工学院 High-power multi-input multi-output transmission device and assembly method thereof

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