CN106594186A - Split torque transmission speed reduction device for helicopter - Google Patents
Split torque transmission speed reduction device for helicopter Download PDFInfo
- Publication number
- CN106594186A CN106594186A CN201710075006.9A CN201710075006A CN106594186A CN 106594186 A CN106594186 A CN 106594186A CN 201710075006 A CN201710075006 A CN 201710075006A CN 106594186 A CN106594186 A CN 106594186A
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- Prior art keywords
- gear
- straight spur
- spur gear
- helical tooth
- shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a split torque transmission speed reduction device for a helicopter. Each engine input shaft is connected with a power input shaft through an overrunning clutch; a straight toothed spur gear on each power input shaft is engaged with two face gears installed in the opposite directions to achieve the power shunting, first-stage speed reduction and the reversing functions. The face gears are connected with the corresponding straight toothed spur gears through corresponding duplicate gear shafts and transmit power uniformly to the four straight toothed spur gears to achieve the second torque split and second-stage speed reduction functions. Power is transmitted to four herringbone toothed spur gears by the four straight toothed spur gears through the four duplicate gear shafts, and the four herringbone toothed spur gears are engaged with a fifth herringbone toothed spur gear correspondingly to achieve the second-stage speed reduction and parallel operation functions. The split torque transmission speed reduction device adopts multistage gear transmission, and is high in transmission ratio and low in vibration noise. Power is shunted through multiple branches. Torque transmitted by the gears in all the branches is reduced. The bearing capacity of the gears is improved. The fatigue life of the gears is prolonged. Accordingly, a transmission system has higher survivability.
Description
Technical field
The present invention relates to helicopter reducer field, specifically, is related to a kind of point torsion gear reduction for helicopter
Device.
Background technology
Since helicopter comes out, the actuation types of its decelerator are all being updated, traditional helicopter reducer
In, the power of electromotor is all single channel transmission from output procedure is input to, and is slowed down step by step；By single-stage or two-stage after simultaneously car
Planetary reduction gear output is to rotor shaft.But this conventional configuration is suitable only for light-duty and little tonnage Helicopter Main Reducer.Once
Transmission power increases, and may result in the increase of reductor volume, and quality increases, and vibration noise also can increase therewith.This is designer
It is undesirable with user, therefore the development and improvement of helicopter reducer are imperative.
Apache's helicopter prototype AH-64M drive systems, using straight spur gear be input into, and with two face gears
Engagement, two face gears are confluxed on output straight spur gear respectively by power by straight spur gear.But in simultaneously car level
Engaged using spur gear, contact ratio and overlap ratio can be reduced, reduce the bearing capacity of simultaneously car level gear.
" Helicopter Main power train shunts machine with herringbone bear transmission combination with face gear to Chinese patent CN101708774A
Simultaneously car level, on the basis of AH-64M drive systems, has been changed to herringbone bear engagement and has been confluxed, on the one hand avoided gear shaft by structure "
To the uneven phenomenon of power, on the other hand, registration reduces greatly the load of each pair gear, improves the bearing capacity of gear, but
Due to only having two-stage to be driven, it is impossible to suitable for the working condition of big speed ratio.
It is in patent CN103968003A " a kind of Helicopter Main Reducer point torsion drive mechanism ", defeated using spur gear
Enter, on input shaft, there are two spur gears, engage with corresponding face gear respectively, the spur gear coaxial with face gear realizes a point torsion,
Finally carried out using double helical tooth roller gear and car output.But as two spur gears on input shaft are difficult accurately to realize
Power is half-and-half shunted, and can be caused to bear most moments of torsion near engine end spur gear, be substantially reduced its service life.
The content of the invention
In order to avoid the deficiency that prior art is present, the present invention proposes a kind of point torsion gear reduction dress for helicopter
Put.
The technical solution adopted for the present invention to solve the technical problems is:Including the first engine output shaft, first starts
Machine output shaft is connected by the first freewheel clutch with the first power input shaft, and the first straight spur gear is fixed on first and moves
On power input shaft, and it is meshed with the first face gear and the second face gear, realizes turning to, once divides torsion, primary speed-down；First face
Gear is connected by the first double crosslinking gear shaft with the second straight spur gear, and the second face gear is by by the second duplicate gear
Axle is connected with the 3rd straight spur gear；3rd straight spur gear and the 6th straight spur gear and the 7th straight tooth column tooth
Wheel is meshed, and the second straight spur gear is meshed with the 4th straight spur gear and the 5th straight spur gear, realizes two grades
Slow down and secondary point is turned round；4th straight spur gear is connected with the first double helical tooth roller gear by the 3rd double crosslinking gear shaft,
5th straight spur gear is connected with the second double helical tooth roller gear by the 4th double crosslinking gear shaft；3rd straight spur gear
It is meshed with the 6th straight spur gear and the 7th straight spur gear, the 6th straight spur gear passes through the 5th double crosslinking gear shaft
It is connected with the 3rd double helical tooth roller gear, the 7th straight spur gear passes through the 6th double crosslinking gear shaft and the 4th double helical tooth cylinder
Gear is connected；First double helical tooth roller gear, the second double helical tooth roller gear, the 3rd double helical tooth roller gear and the 4th herringbone
Tooth roller gear is meshed with the 5th double helical tooth roller gear respectively, realizes that three-level is slowed down and and car；5th double helical tooth Cylinder Gear
Wheel is connected on output shaft.
First face gear is with the second face gear installation direction conversely, two gear axle steers are identical.
Beneficial effect
A kind of point torsion transmission decelerating device for helicopter proposed by the present invention, engine output shaft pass through overdrive clutch
Device is connected with power input shaft, and on power input shaft, straight spur gear is engaged towards contrary face gear with two, is realized
Dynamic branch, primary speed-down and commutation function；Face gear is connected with straight spur gear by double crosslinking gear shaft, and power is equal
Even passes to four straight spur gears, realizes that secondary point is turned round and double reduction；By four double crosslinking gear shafts by power by
Four straight spur gears pass to four double helical tooth roller gears, and are meshed with the 5th double helical tooth roller gear respectively, real
Existing three-level is slowed down and and car function.
The present invention point turns round transmission decelerating device for helicopter, using Multi-stage transmission and point turns round transmission, gear ratio is big,
It is little using gear negligible amounts, small volume, light weight, vibration noise, the shunting of power Jing multiple branch circuits, each branch path middle gear transmission
Moment of torsion reduce, improve bearing capacity, the fatigue life of gear, make drive system have higher survival ability.
Description of the drawings
Point torsion transmission decelerating device for helicopter a kind of to the present invention with embodiment is made into one below in conjunction with the accompanying drawings
Step is described in detail.
Fig. 1 is point torsion transmission decelerating device schematic diagram using single-engined helicopter.
Fig. 2 is point torsion transmission decelerating device schematic diagram using bimotored helicopter.
In figure:
1. 2. first freewheel clutch of the first engine output shaft, 3. first power input shaft
4. 5. first face gear of output shaft
6. the 7th straight spur gear of the first 7. second face gear 8. of straight spur gear
9. the second double crosslinking gear shaft
10. the 4th double helical tooth roller gear of the 3rd the 6th double crosslinking gear shaft 12. of straight spur gear 11.
The 3rd double helical tooth roller gear of 13. the 6th the 5th double crosslinking gear shaft 15. of straight spur gear 14.
18. second double helical tooth roller gear of the 4th double crosslinking gear shaft of 16. the 5th straight spur gear 17.
19. first double crosslinking gear shaft, 20. second straight spur gear, 21. first double helical tooth roller gear
The 5th double helical tooth roller gear of 22. the 3rd the 4th straight spur gear 24. of double crosslinking gear shaft 23.
25. second engine output shaft, 26. second freewheel clutch, 27. second power input shaft
28. the 3rd face gears
29. the 11st the 9th double crosslinking gear shaft of straight spur gear 30., 31. Sixth Man word tooth roller gear
The 12nd straight spur gear of 32. the 7th the 9th straight spur gear 34. of double crosslinking gear shaft 33.
The 11st double crosslinking gear shaft of 35. the tenth the 7th double helical tooth roller gear 37. of double crosslinking gear shaft 36.
The 9th double helical tooth roller gear of 38. the 8th the 13rd straight spur gear 40. of double helical tooth roller gear 39.
The tenth straight spur gear of 41. the 12nd the 14th straight spur gear 43. of double crosslinking gear shaft 42.
The 8th straight spur gear of 44. the 8th double crosslinking gear shaft, 45. fourth face gear 46.
Specific embodiment
The present embodiment is a kind of point torsion transmission decelerating device for helicopter.
Embodiment one
Fig. 1 is point torsion transmission decelerating device of this example using the helicopter of monomotor input；Wherein, the first electromotor
Output shaft 1 is connected by the first freewheel clutch 2 with the first power input shaft 3, and the first straight spur gear 6 is fixed on first
On power input shaft 3, and it is meshed with the first face gear 5 and the second face gear 7, realizes turning to, once divides torsion, primary speed-down；
First face gear 5 is connected by the first double crosslinking gear shaft 19 with the second straight spur gear 20, and the second face gear 7 passes through
Second double crosslinking gear shaft 9 is connected with the 3rd straight spur gear 10；3rd straight spur gear 10 and the 6th straight tooth column tooth
Wheel 13 and the 7th straight spur gear 8 are meshed, and the second straight spur gear 20 is straight with the 4th straight spur gear 23 and the 5th
Tooth roller gear 16 is meshed, and realizes double reduction and secondary point of torsion；4th straight spur gear 23 passes through the 3rd duplicate gear
Axle 22 is connected with the first double helical tooth roller gear 21, and the 5th straight spur gear 16 passes through the 4th double crosslinking gear shaft 17 and second
Double helical tooth roller gear 18 is connected；3rd straight spur gear 10 and the 6th straight spur gear 13 and the 7th straight tooth column tooth
Wheel 8 is meshed, and the 6th straight spur gear 13 is connected with the 3rd double helical tooth roller gear 15 by the 5th double crosslinking gear shaft 14,
7th straight spur gear 8 is connected with the 4th double helical tooth roller gear 12 by the 6th double crosslinking gear shaft 11；First double helical tooth
12 points of roller gear 21, the second double helical tooth roller gear 18, the 3rd double helical tooth roller gear 15 and the 4th double helical tooth roller gear
Do not engage with the 5th double helical tooth roller gear phase 24, realize that three-level is slowed down and and car；5th double helical tooth roller gear 24 is connected in
On output shaft 4.
First face gear 5 is with 7 installation direction of the second face gear conversely, the gear axle steer of two face gears is identical.
In the present embodiment, power is input into by the first power input shaft 3, the first straight spur gear 6 and the first face gear 5 and
Second face gear 7 is meshed, and realization once divides torsion, primary speed-down, and commutation function；Due to the first face gear 5 and the second face
The direction that gear 7 is installed is conversely, two gear axle steers are identical.Power is passed by the first face gear 5 by the first double crosslinking gear shaft 19
Pass the second straight spur gear 20；Second face gear 7 imparts power to the 3rd straight tooth column by the second double crosslinking gear shaft 9
Gear 10；Second straight spur gear 20 is meshed with the 4th straight spur gear 23 and the 5th straight spur gear 16, is realized
Double reduction and second point of torsion.4th straight spur gear 23 is imparted power to the first by the 3rd double crosslinking gear shaft 22
Word tooth roller gear 21, power is passed to the second double helical tooth cylinder by the 4th double crosslinking gear shaft 17 by the 5th straight spur gear 16
Gear 18.3rd straight spur gear 10 is meshed with the 6th straight spur gear 13 and the 7th straight spur gear 8, realizes
Point torsion and the secondary speed-reducing function of two branch roads.Power is passed to by the 5th double crosslinking gear shaft 14 by the 6th straight spur gear 13
Power is passed to the 4th double helical tooth by the 6th double crosslinking gear shaft 11 by three double helical tooth roller gears 15, the 7th straight spur gear 8
Roller gear 12；First double helical tooth roller gear 21, the second double helical tooth roller gear 18, the 3rd double helical tooth roller gear 15 and
Four double helical tooth roller gears 12 are meshed with the 5th double helical tooth roller gear phase 24 respectively, realize that three-level is slowed down and and car work(
Energy；5th double helical tooth roller gear 24 is fixedly connected on output shaft 4 and outputs power.
Embodiment two
Fig. 2 is point torsion transmission decelerating device of this example using the helicopter of twin-engined inputs；It is defeated in monomotor
The second engine output shaft 25, the second freewheel clutch be increased on the basis of point torsion transmission decelerating device of the helicopter for entering
26, the second power input shaft 27, the 8th straight spur gear 46, the 3rd face gear 28, fourth face gear 45, the 7th duplicate gear
Axle 32, the 8th double crosslinking gear shaft 44, the 9th straight spur gear 33, the tenth straight spur gear 43, the 11st straight-tooth Cylinder Gear
The 29, the 12nd straight spur gear 34 of wheel, the 13rd straight spur gear 39, the 14th straight spur gear 42, the 9th duplex
Gear shaft 30, the tenth double crosslinking gear shaft 35, the 11st double crosslinking gear shaft 37, the 12nd double crosslinking gear shaft 41, Sixth Man word tooth circle
Stud wheel 31, the 7th double helical tooth roller gear 36, the 8th double helical tooth roller gear 38, the 9th double helical tooth roller gear 40.Wherein,
Power is input into by the second input shaft 27, and the 8th straight spur gear 46 is meshed with the 3rd face gear 28 and fourth face gear 45,
Complete steering, primary speed-down and once divide torsion.It is straight that power is passed to the 9th by the 7th double crosslinking gear shaft 32 by the 3rd face gear 28
Power is passed to the tenth straight spur gear 43 by the 8th double crosslinking gear shaft 44 by tooth roller gear 33, fourth face gear 45, the
Nine straight spur gears 33 are engaged with the 11st straight spur gear 29 and the 12nd straight spur gear 34, complete secondary speed-reducing
Turn round with secondary point.Tenth straight spur gear 43 is mutually nibbled with the 13rd straight spur gear 39 and the 14th straight spur gear 42
Close, complete another branch road secondary speed-reducing and secondary point torsion.11st straight spur gear 29 passes through the 9th double crosslinking gear shaft 30
Power is passed to into the 31, the 12nd straight spur gear 34 of Sixth Man word tooth roller gear and passes through the tenth double crosslinking gear shaft 35 by power
The 7th double helical tooth roller gear 36 is passed to, power is passed to by the 13rd straight spur gear 39 by the 11st double crosslinking gear shaft 37
Power is passed to the 9th by the 12nd double crosslinking gear shaft 41 by the 8th double helical tooth roller gear 38, the 14th straight spur gear 42
Double helical tooth roller gear 40；Sixth Man word tooth roller gear 31, the 7th double helical tooth roller gear 36, the 8th double helical tooth roller gear
38 and the 9th double helical tooth roller gear 40 engage with the 5th double helical tooth roller gear phase 24 respectively, realize three-level slow down and and car work(
Energy；5th double helical tooth roller gear 24 is fixedly connected on output shaft 4 and outputs power.
Claims (2)
1. it is a kind of for helicopter point turn round transmission decelerating device, it is characterised in that:Including the first engine output shaft, first
Motivation output shaft is connected by the first freewheel clutch with the first power input shaft, and the first straight spur gear is fixed on first
On power input shaft, and it is meshed with the first face gear and the second face gear, realizes turning to, once divides torsion, primary speed-down；First
Face gear is connected by the first double crosslinking gear shaft with the second straight spur gear, and the second face gear is by by the second duplex-gear
Wheel shaft is connected with the 3rd straight spur gear；3rd straight spur gear and the 6th straight spur gear and the 7th straight tooth column
Gear is meshed, and the second straight spur gear is meshed with the 4th straight spur gear and the 5th straight spur gear, realizes two
Level is slowed down and secondary point is turned round；4th straight spur gear is connected with the first double helical tooth roller gear by the 3rd double crosslinking gear shaft
Connect, the 5th straight spur gear is connected with the second double helical tooth roller gear by the 4th double crosslinking gear shaft；3rd straight tooth column
Gear is meshed with the 6th straight spur gear and the 7th straight spur gear, and the 6th straight spur gear passes through the 5th duplex-gear
Wheel shaft is connected with the 3rd double helical tooth roller gear, and the 7th straight spur gear passes through the 6th double crosslinking gear shaft and the 4th double helical tooth
Roller gear is connected；First double helical tooth roller gear, the second double helical tooth roller gear, the 3rd double helical tooth roller gear and the 4th
Double helical tooth roller gear is meshed with the 5th double helical tooth roller gear respectively, realizes that three-level is slowed down and and car；5th double helical tooth is justified
Stud wheel is connected on output shaft.
2. it is according to claim 1 for helicopter point turn round transmission decelerating device, it is characterised in that:First face tooth
Wheel is with the second face gear installation direction conversely, two gear axle steers are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075006.9A CN106594186A (en) | 2017-02-13 | 2017-02-13 | Split torque transmission speed reduction device for helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710075006.9A CN106594186A (en) | 2017-02-13 | 2017-02-13 | Split torque transmission speed reduction device for helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106594186A true CN106594186A (en) | 2017-04-26 |
Family
ID=58587238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710075006.9A Pending CN106594186A (en) | 2017-02-13 | 2017-02-13 | Split torque transmission speed reduction device for helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594186A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559384A (en) * | 2017-07-19 | 2018-01-09 | 南京航空航天大学 | A kind of power dividing transmission system configuration twice |
| CN109695664A (en) * | 2018-12-25 | 2019-04-30 | 重庆大学 | An a kind of helicopter point torsion transmission decelerating device |
| CN111268114A (en) * | 2020-02-27 | 2020-06-12 | 西安工业大学 | Bevel gear coaxial contra-rotating dual-rotor transmission mechanism |
| CN111268115A (en) * | 2020-02-27 | 2020-06-12 | 西安工业大学 | Face gear configuration coaxial dual-rotor variable speed transmission mechanism |
| CN115045967A (en) * | 2022-03-20 | 2022-09-13 | 西北工业大学 | Branch is turned round-many grades of speed change gear that converges based on face gear |
| CN115432181A (en) * | 2022-10-08 | 2022-12-06 | 重庆大学 | Tilt-rotor aircraft transmission system with coaxial input shaft and rotor shaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682512A (en) * | 1985-09-30 | 1987-07-28 | Peterson Carlton G | Power train for heavy lift helicopters |
| 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 |
| CN102619946A (en) * | 2012-04-13 | 2012-08-01 | 中国航空动力机械研究所 | Branch torque transmission structure and mounting method thereof |
| CN103968003A (en) * | 2014-05-20 | 2014-08-06 | 西北工业大学 | Torque shunting transmission mechanism for helicopter main reducing gear |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
| CN105383690A (en) * | 2015-11-20 | 2016-03-09 | 西安工业大学 | Face gear and herringbone-tooth cylindrical gear combined four-way branch transmission mechanism |
| CN106195133A (en) * | 2015-05-26 | 2016-12-07 | 波音公司 | Planetary gear system and the carrier for planetary gear system |
-
2017
- 2017-02-13 CN CN201710075006.9A patent/CN106594186A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4682512A (en) * | 1985-09-30 | 1987-07-28 | Peterson Carlton G | Power train for heavy lift helicopters |
| 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 |
| CN102619946A (en) * | 2012-04-13 | 2012-08-01 | 中国航空动力机械研究所 | Branch torque transmission structure and mounting method thereof |
| CN103968003A (en) * | 2014-05-20 | 2014-08-06 | 西北工业大学 | Torque shunting transmission mechanism for helicopter main reducing gear |
| CN104500655A (en) * | 2014-12-11 | 2015-04-08 | 中国航空动力机械研究所 | Torsion-transmission helicopter reducer |
| CN106195133A (en) * | 2015-05-26 | 2016-12-07 | 波音公司 | Planetary gear system and the carrier for planetary gear system |
| CN105383690A (en) * | 2015-11-20 | 2016-03-09 | 西安工业大学 | Face gear and herringbone-tooth cylindrical gear combined four-way branch transmission mechanism |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559384A (en) * | 2017-07-19 | 2018-01-09 | 南京航空航天大学 | A kind of power dividing transmission system configuration twice |
| CN109695664A (en) * | 2018-12-25 | 2019-04-30 | 重庆大学 | An a kind of helicopter point torsion transmission decelerating device |
| CN111268114A (en) * | 2020-02-27 | 2020-06-12 | 西安工业大学 | Bevel gear coaxial contra-rotating dual-rotor transmission mechanism |
| CN111268115A (en) * | 2020-02-27 | 2020-06-12 | 西安工业大学 | Face gear configuration coaxial dual-rotor variable speed transmission mechanism |
| CN111268115B (en) * | 2020-02-27 | 2024-02-27 | 西安工业大学 | Face gear configuration coaxial double-rotor speed-changing transmission mechanism |
| CN111268114B (en) * | 2020-02-27 | 2024-03-01 | 西安工业大学 | Bevel gear coaxial counter-rotating double-rotor transmission mechanism |
| CN115045967A (en) * | 2022-03-20 | 2022-09-13 | 西北工业大学 | Branch is turned round-many grades of speed change gear that converges based on face gear |
| CN115045967B (en) * | 2022-03-20 | 2024-04-26 | 西北工业大学 | Face gear-based split-confluence multi-gear speed change device |
| CN115432181A (en) * | 2022-10-08 | 2022-12-06 | 重庆大学 | Tilt-rotor aircraft transmission system with coaxial input shaft and rotor shaft |
| CN115432181B (en) * | 2022-10-08 | 2024-04-19 | 重庆大学 | Tilt gyroplane transmission system with input shaft coaxial with rotor shaft |
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Application publication date: 20170426 |