CN108974347A - A kind of intersection twin-rotor helicopter and its machine driven system - Google Patents
A kind of intersection twin-rotor helicopter and its machine driven system Download PDFInfo
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- CN108974347A CN108974347A CN201811126035.4A CN201811126035A CN108974347A CN 108974347 A CN108974347 A CN 108974347A CN 201811126035 A CN201811126035 A CN 201811126035A CN 108974347 A CN108974347 A CN 108974347A
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 16
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/12—Rotor drives
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
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Abstract
The invention discloses a kind of machine driven systems for intersecting twin-rotor helicopter, two output shafts including driving two rotor wing rotations；The first gear being connect with power source；Set on the first gear the left and right sides and engage respectively, with realize same rotational speed rotation two second gears and two groups of deceleration devices, any deceleration device be set between the ipsilateral second gear and the output shaft.The rotary motion of power source is transferred to second gear by first gear by above-mentioned machine driven system, and two rotors are transferred to after slowing down via deceleration device, two rotors thus can be realized synchronous rotary, certain phase difference be remained, to avoid colliding.Simultaneously as above system is simple and compact for structure, layout symmetry, be conducive to adjust the angle between two output shafts of two rotor wing rotations of driving, and then improve performance.
Description
Technical field
The present invention relates to helicopter field more particularly to a kind of machine driven systems for intersecting twin-rotor helicopter.This hair
It is bright further relate to include above-mentioned machine driven system intersection twin-rotor helicopter.
Background technique
Intersecting twin-rotor helicopter is a kind of helicopter layout occurred in the middle ten days in last century, and there are two its tools is arranged side by side,
But the opposite rotor in direction of rotation, thus stability is good, is suitably executed lifting, hanging operation.
In intersecting twin-rotor helicopter, the rotary shaft of the two rotor rotationals and not parallel is driven, but is rolled outward
Tiltedly, and lateral shaft is away from small, thus cross-like is presented above body.Since the rotary shaft of two rotors of driving has certain angle,
Therefore two rotors need to remain that rotational phase difference can avoid collision.For this purpose, being driven in intersecting twin-rotor helicopter
Dynamic two rotary shafts synchronous rotation can be advantageously implemented above-mentioned purpose.But the machine that two rotary shafts rotate synchronously is realized at present
Tool drive system structure is complicated, and the mechanism of complicated machine driven system further increases the difficulty for adjusting its angle, leads
Cause the performance of helicopter not high.
Above-mentioned machine driven system is realized in conclusion how to simplify, and then improves the performance of helicopter, becomes this field
Technical staff's urgent problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of machine driven system for intersecting twin-rotor helicopter, structure is simple, stablizes,
Be conducive to improve the performance of helicopter.It is double that it is a further object of the present invention to provide a kind of intersections including above-mentioned machine driven system
Heligyro.
To achieve the above object, the present invention provides a kind of machine driven system for intersecting twin-rotor helicopter, comprising:
The first gear being connect with power source；
Positioned at the left and right sides of the first gear, to be engaged respectively with the first gear to realize that same rotational speed is revolved
Two second gears turned；
Two output shafts of two rotor wing rotations are driven respectively；
Two groups of deceleration devices；Any deceleration device be set to be located at the ipsilateral second gear and the output shaft it
Between.
Preferably, base radius of the base radius of the first gear less than two second gears.
Preferably, any deceleration device is specially bevel gear set, comprising:
The drive bevel gear coaxial with the second gear；
The driven wheel of differential for being coaxially disposed with the output shaft and being meshed with the drive bevel gear；Wherein, the master
The base radius of dynamic bevel gear is less than the base radius of the driven wheel of differential.
Preferably, bevel gear set described in two groups is respectively first bevel gear group and second bevel gear group, the first cone tooth
The driven wheel of differential of wheel group is located at the top of the drive bevel gear of the first bevel gear group；The second bevel gear group it is driven
Bevel gear is located at the lower section of the drive bevel gear of the second bevel gear group.
Preferably, bevel gear set described in two groups is separately mounted in two bases, and the flange of any base is equipped with
Through-hole, so that all bevel gear sets are fixed on front mounting plate and rear mounting plate.
It preferably, further include the synchronous pulley mechanism being arranged between power source and the first gear, the synchronous belt
Taking turns mechanism includes:
The driving pulley being connect with power source；
With the first gear is coaxially connected, driven pulley to drive the first gear to rotate synchronously；Wherein, institute
The radius for stating driving pulley is less than the radius of the driven pulley；
With the driving pulley and the equal internal messing of the driven pulley, the band tooth to transmit rotation.
Preferably, it is equipped with the shaft coupling of synchronous rotation in the aperture of the driven pulley, first tooth is installed
First input shaft of wheel is equipped with keyway, and the shaft coupling is rotated coaxially by key and the first gear.
Preferably, the keyway is rectangle keyway.
The present invention also provides a kind of intersection twin-rotor helicopters, including above-mentioned machine driven system.
It preferably, further include the front mounting plate of the fixed machine driven system, the first gear passes through the first axle bed
It is installed on the front mounting plate；Two second gears pass through two the second axle beds respectively and are installed on the front mounting plate.
Relative to above-mentioned background technique, the machine driven system provided by the present invention for intersecting twin-rotor helicopter, including
Two output shafts of two rotor wing rotations are driven, the first gear being connected with power source is set at left and right sides of first gear
There are two to second gear engaged with the first gear respectively, the revolving speed of two second gears is identical, further includes being respectively arranged on
Two groups of deceleration devices between ipsilateral second gear and output shaft.
The machine driven system of the intermeshing-rotor helicopter passes through the rotary motion in first gear ultromotivity in future source
It resolves into the identical rotary motion of two revolving speeds, via two second gears be transferred to two rotors respectively, to realize one
The purpose of a power source two rotors of synchronous driving.At the same time, it is converted the higher revolving speed of power source to by deceleration device
It is suitble to the revolving speed of rotor.Components used in above-mentioned machine driven system are less, and layout symmetry, and structure is simple, compact,
While realizing two rotor of synchronous driving, be conducive to the performance for improving helicopter.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram for intersecting the machine driven system of twin-rotor helicopter provided by the embodiment of the present invention；
Fig. 2 is the partial schematic diagram of machine driven system shown in FIG. 1；
Fig. 3 is the structural schematic diagram of the base of machine driven system shown in FIG. 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to make those skilled in the art more fully understand the present invention program, with reference to the accompanying drawing and it is embodied
The present invention is described in further detail for mode.
Fig. 1-Fig. 3 is please referred to, Fig. 1 is the machine driven system for intersecting twin-rotor helicopter provided by the embodiment of the present invention
Structural schematic diagram；Fig. 2 is the partial schematic diagram of machine driven system shown in FIG. 1；Fig. 3 is mechanical drive train shown in FIG. 1
The structural schematic diagram of the base of system.
Fig. 1, Fig. 3 are please referred to, Fig. 1 is the machine driven system for intersecting twin-rotor helicopter provided by the embodiment of the present invention
Structural schematic diagram；Fig. 3 is the structural schematic diagram of the base of machine driven system shown in FIG. 1.
The machine driven system provided by the present invention for intersecting twin-rotor helicopter, two including driving two rotor wing rotations
A output shaft 8, the first gear 1 being connect with power source, while two are additionally provided with first in the left and right sides of first gear 1
The second gear 2 that gear 1 engages, the rotary motion in first gear ultromotivity in 1 future source are decomposed into the identical rotation of two revolving speeds
Two deceleration devices being located at thereafter are transmitted in movement, two rotary motions after second gear 2 decomposes first gear 1 respectively,
Two output shafts 8 are transferred to after slowing down, to drive two rotor synchronous rotaries.
It should be noted that power source refers generally to engine, but it is not excluded for hybrid power or other and can be mentioned to rotor
For the mechanism of kinetic energy needed for rotating.
Two second gears 2 are specially two identical gears, mentioned here identical, refer to two gears
All kinematic parameters it is identical, be not limited to because manufacture and exist geometrically there is subtle gap.Specifically, two teeth
The parameters such as the number of teeth, modulus, base radius, the tooth height of wheel are identical, so that two second gears 2 are symmetrical set in first gear
When 1 two sides, the identical rotary motion of two revolving speeds is formed after capable of engaging respectively with first gear 1 just.
Machine driven system provided by the present invention resolves into two by the rotary motion in first gear ultromotivity in 1 future source
The rotary motion of a revolving speed, and transmitted respectively backward via two second gears 2, to realize that two rotors rotate synchronously.Together
When, in the range of the speed of rotary motion is reduced to suitable rotor to work by deceleration device.Above-mentioned machine driven system or so knot
Structure is symmetrical, simple and compact for structure, while realizing two rotor of synchronous driving, is conducive to the performance for improving helicopter.
In a specific embodiment, the base radius of first gear 1 less than two second gears 2 base radius, i.e.,
First gear 1 and two second gears 2 both can be used as the mechanism for decomposing movement, can also be further used as deceleration mechanism, real
Now by the deceleration of power source to rotor.But since the revolving speed for reaching first gear 1 is higher, in order to avoid first gear 1 is worn sternly
Weight, first gear 1 and the size disparity of second gear 2 should not be too large.
Since first gear 1 is engaged with two second gears 2 of the left and right sides simultaneously, and first gear 1 and two second
The engagement of gear 2 is basic only by radial force, in order to reduce gear manufacture difficulty and installation difficulty, first gear 1 and two second
Gear 2 is cylindric straight-tooth gear.And biggish gear range can be obtained using cylindric straight-tooth gear, and efficiency wants high
In other gears.
Further, any deceleration device be specially bevel gear set after second gear 2 is set, including with the second tooth
The drive bevel gear that wheel 2 rotates coaxially；The driven wheel of differential 3 being meshed with drive bevel gear, driven wheel of differential 3 are mounted on output
On axis 8.The base radius of above-mentioned drive bevel gear is less than the base radius of driven wheel of differential 3, slows down to realize again.
Second gear 2 is coaxial with drive bevel gear, and then passes through the cooperation of drive bevel gear and driven wheel of differential 3, will revolve
On the dynamic output shaft 8 for being transferred to 3 place of driven wheel of differential of transhipment, rotated synchronously to control two rotors.
First bevel gear group include the first driven wheel of differential and the first drive bevel gear, second bevel gear group include second from
Dynamic bevel gear and the second drive bevel gear；The specific layout of first bevel gear group and second bevel gear group is first bevel gear group
The first driven wheel of differential be set to the first drive bevel gear top；Second driven wheel of differential of second bevel gear group is set to second
The lower section of drive bevel gear.Here it is specifically referred to above and below, since the axis in the aperture of drive bevel gear intersects even
Perpendicular to the axis in the aperture of driven wheel of differential 3, thus driven wheel of differential 3 may be mounted at the two of any diameter of drive bevel gear
At endpoint, at the endpoint that the first driven wheel of differential of first bevel gear group is mounted on a diameter, second bevel gear group
The second driven wheel of differential be then mounted at another endpoint of symmetrical diameter, above-mentioned diameter and its symmetrical diameter are with two the second teeth
The plane of symmetry of wheel 2 in axial direction is symmetrical centre.
The rotary motion in bevel gear set one side ultromotivity in future source is further slowed down, it is often more important that changes movement
Direction.The shaft for the rotary motion transmitted by second gear 2 is intersected with the shaft of the output shaft 8 of two rotor wing rotations of control
It is even vertical, and bevel gear set can transmit power between two concurrent aceses.And the layout of two bevel gear sets one on the other,
It directly will can become two reversed rotations from the rotation in the same direction of two drive bevel gears, not need additionally to increase other portions
Part is to realize the opposite steering of two rotors.
Two groups of bevel gear sets are passed through multiple axle beds respectively to be mounted in two bases 9, the apex of the periphery of base 9 is set
There is the flange for installation, open up through-hole on flange, being fixed in fuselage with will pass through bolt for base 9, to realize two
Relatively fixed, the relative position between two output shafts 8 convenient for adjusting two rotors of control of the position of bevel gear set.Above-mentioned company
The mode of connecing is not limited to bolt, and the front and back mounting plate that base 9 is fixed in fuselage also may be used by pin.
Further, the synchronous pulley mechanism 4 between power source and first gear 1, synchronous pulley mechanism 4 specifically includes
Driving pulley 41, the driven pulley 42 coaxially connected with first gear 1 and with driving pulley 41 and driven pulley 42 in nibble
The band tooth 43 of conjunction.It should be noted that driving pulley 41 and power source are coaxially connected, and the radius of driving pulley 41 is less than driven
The radius of belt wheel 42, to realize by power source to the deceleration first gear 1.
Since the inner wall with tooth 43 is provided with the tooth socket that can engage with driving pulley 41 and driven pulley 42, thus work as
Under the driving of power source when rotation, band tooth 43 correspondingly rotates driving pulley 41, and is further driven to driven pulley 42
Rotation.
Certainly, synchronous pulley mechanism 4 can also change other deceleration mechanisms, such as a pair of gear being meshed into, as long as energy
Realize that dynamic source to the deceleration between first gear 1, all can serve as deceleration mechanism described in the application.
Referring to FIG. 2, Fig. 2 is the partial schematic diagram of machine driven system shown in FIG. 1.
In view of first gear 1 is engaged with two second gears 2 at left and right sides of it respectively, then the rotation of first gear 1
Stationarity with higher is answered, i.e., when unusual fluctuations occurs in power source, the rotary motion for being transferred to first gear 1 should will not
Keep first gear 1 badly damaged.Keep driven pulley and the first input shaft 5 coaxially connected by shaft coupling 6, shaft coupling 6 be located at from
In the aperture of movable belt pulley, sent out due to compensating deformation or thermal expansion between axis hole when manufacturing inaccurate installation, work etc.
Raw offset, while impact can also be mitigated, reach absorbing purpose.
Above-mentioned shaft coupling 6 is connect by key with the first input shaft 5, in order to enhance bonding strength between the two, acquisition compared with
High service performance, the keyway opened up on the first input shaft 5 are rectangle keyway.Shaft coupling 6 is connected by key in the first input
Axis 5 can obtain biggish bearing capacity, while also be above general connection to neutral and guiding performance.
The present invention also provides a kind of intersection twin-rotor helicopters including above-mentioned machine driven system, including for fixed
State the front mounting plate of machine driven system.Refer to the prior art for the other parts of intersection twin-rotor helicopter, no longer opens up herein
Open narration.
Specifically, first gear 1 is fixed on front mounting plate by axle bed 7 and the first input shaft 5, i.e. axle bed 7 is by first
Input shaft 5 is fixed on front mounting plate, make the first input shaft 5 in the axle bed hole where axle bed 7 can only radial rotating, to make
Obtaining the first gear 1 being located on the first input shaft 5 can only rotate around the axle bed hole of axle bed 7, to realize fixed-axis rotation.Similarly,
Two second gears 2 are fixed on front mounting plate by axle bed, and what finally realization first gear 1 and two the second teeth 2 were taken turns determines
Axis rotation, that is, the axis of the first input shaft 5 and 2 place axis of second gear where first gear 1 are solid both with respect to rack
It is fixed.
Above-mentioned intersection twin-rotor helicopter drives the synchronous rotary of two rotors by its internal machine driven system, and
The structure of its machine driven system is simple, layout symmetry, can concentrate it is fixed in a smaller space, convenient for adjusting between two rotors
Angle, obtain better regulating power.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Intersection twin-rotor helicopter provided by the present invention and its machine driven system are described in detail above.This
Apply that a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art,
Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen
Enter in the protection scope of the claims in the present invention.
Claims (10)
1. a kind of machine driven system for intersecting twin-rotor helicopter characterized by comprising
To the first gear (1) being connect with power source；
Positioned at the first gear (1) the left and right sides and to engage respectively with the first gear (1) to realize identical turn
Two second gears (2) of speed rotation；
Two output shafts (8) of two rotor wing rotations are driven respectively；
Two groups of deceleration devices；Any deceleration device be set to the ipsilateral second gear (2) and the output shaft (8) it
Between.
2. machine driven system according to claim 1, which is characterized in that the base radius of the first gear (1) is small
In the base radius of two second gears (3).
3. machine driven system according to claim 2, which is characterized in that deceleration device described in any group is specially to bore tooth
Wheel group, any bevel gear set include:
The drive bevel gear coaxial with the second gear (2)；
The driven wheel of differential (3) for being coaxially disposed with the output shaft (8) and being meshed with the drive bevel gear；Wherein, described
The base radius of drive bevel gear is less than the base radius of the driven wheel of differential (3).
4. machine driven system according to claim 3, which is characterized in that bevel gear set described in two groups is respectively the first cone
Gear set and second bevel gear group, the driven wheel of differential of the first bevel gear group are located at the institute of the first bevel gear group
State the top of drive bevel gear；The driven wheel of differential of the second bevel gear group is located at the described of the second bevel gear group
The lower section of drive bevel gear.
5. machine driven system according to claim 4, which is characterized in that bevel gear set described in two groups is separately mounted to two
In a base (9), the flange of any base (9) is equipped with through-hole, so that all bevel gear sets are fixed on preceding peace
Loading board and rear mounting plate.
6. machine driven system according to claim 1-5, which is characterized in that further include power is arranged in
Synchronous pulley mechanism (4) between source and the first gear (1), the synchronous pulley mechanism (4) include:
To the driving pulley (41) being connected with power source；
With the first gear (1) it is coaxially connected, to drive the first gear (1) rotate synchronously driven pulley (42)；
Wherein, the radius of the driving pulley (41) is less than the radius of the driven pulley (42)；
With the driving pulley (41) and the driven pulley (42) internal messing, band tooth (43) to transmit rotation.
7. machine driven system according to claim 6, which is characterized in that be equipped in the aperture of the driven pulley (42)
The shaft coupling (6) of synchronous rotation, the first input shaft (5) for being equipped with the first gear (1) is equipped with keyway, described
Axis device (6) is rotated coaxially by the key to cooperate with the keyway with the first gear (1).
8. machine driven system according to claim 7, which is characterized in that the keyway is rectangle keyway.
9. a kind of intersection twin-rotor helicopter, which is characterized in that including such as described in any item mechanical drive trains of claim 1-8
System.
10. intersection twin-rotor helicopter according to claim 9, which is characterized in that further include the fixed machine driving
The front mounting plate of system, the first gear (1) are installed on the front mounting plate by the first axle bed (7)；Two described second
Gear (2) is installed on the front mounting plate by two the second axle beds respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126035.4A CN108974347A (en) | 2018-09-26 | 2018-09-26 | A kind of intersection twin-rotor helicopter and its machine driven system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811126035.4A CN108974347A (en) | 2018-09-26 | 2018-09-26 | A kind of intersection twin-rotor helicopter and its machine driven system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111207923A (en) * | 2020-04-22 | 2020-05-29 | 北京清航紫荆装备科技有限公司 | Test bed for transmission device of cross dual-rotor unmanned helicopter |
| WO2020259570A1 (en) * | 2019-06-24 | 2020-12-30 | 南京航空航天大学 | Modular intermeshing and tandem unmanned helicopter and working method thereof |
| CN112591115A (en) * | 2021-03-03 | 2021-04-02 | 北京清航紫荆装备科技有限公司 | Power system and cross double-rotor unmanned helicopter with same |
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| WO2020259570A1 (en) * | 2019-06-24 | 2020-12-30 | 南京航空航天大学 | Modular intermeshing and tandem unmanned helicopter and working method thereof |
| GB2594816A (en) * | 2019-06-24 | 2021-11-10 | Univ Nanjing Aeronautics & Astronautics | Modular intermeshing and tandem unmanned helicopter and working method thereof |
| GB2594816B (en) * | 2019-06-24 | 2023-07-19 | Univ Nanjing Aeronautics & Astronautics | Modular intermeshing and tandem unmanned helicopter and working method thereof |
| CN111207923A (en) * | 2020-04-22 | 2020-05-29 | 北京清航紫荆装备科技有限公司 | Test bed for transmission device of cross dual-rotor unmanned helicopter |
| CN112591115A (en) * | 2021-03-03 | 2021-04-02 | 北京清航紫荆装备科技有限公司 | Power system and cross double-rotor unmanned helicopter with same |
| CN112591115B (en) * | 2021-03-03 | 2021-07-27 | 北京清航紫荆装备科技有限公司 | Power system and cross double-rotor unmanned helicopter with same |
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Application publication date: 20181211 |