CN105114173B - Aircraft engine assembly - Google Patents
Aircraft engine assembly Download PDFInfo
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- CN105114173B CN105114173B CN201510667438.XA CN201510667438A CN105114173B CN 105114173 B CN105114173 B CN 105114173B CN 201510667438 A CN201510667438 A CN 201510667438A CN 105114173 B CN105114173 B CN 105114173B
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- bearing
- power output
- power
- housing
- output shaft
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Abstract
The invention discloses a kind of aircraft engine assembly, including engine and power take-off mechanism, power take-off mechanism includes housing, power output shaft and power input shaft, power output shaft, which is rotatably assorted, is supported on housing and its clutch end vertically extends housing, power input shaft is used for the bent axle output power for receiving engine, output mechanism of the present invention uses the structure that power output shaft is directly supported by housing, so that the matching relationship between power output shaft and housing is to be rotatably assorted and formed support, increase the overall stability of mechanism, so as to stable power output；Output mechanism is simple and compact for structure, and lighter in weight, space-consuming is smaller, is applied to small aircraft use after collectively forming engine assembly with engine.
Description
Technical field
The present invention relates to power take-off mechanism, more particularly to a kind of aircraft engine assembly.
Background technology
The power output of engine has different outbound courses according to different use environments, for example is made using propeller
For the aircraft of power, then power output direction is needed upwards and for driving propeller shape into driving forces such as liftings.For small
, it is necessary to which engine and output mechanism integrally have a compact and light-weighted feature for type aircraft, and existing structure design
It is then complex, and due to being vertical output and stressing conditions are not ideal enough；Not only occupy larger space, have an effect on output machine
The overall stability of structure, increase uses and maintenance cost.
Therefore, it is necessary to be improved to existing for engine assembly structure, export structure is tied after being combined with engine
Structure simple and compact, lighter in weight, space-consuming is smaller, and with stable power output, is used suitable for small aircraft.
The content of the invention
In view of this, it is an object of the invention to provide a kind of aircraft engine assembly, export structure to combine with engine
Simple and compact for structure afterwards, lighter in weight, space-consuming is smaller, and with stable power output, makes suitable for small aircraft
With.
The aircraft engine assembly of the present invention, including engine and power take-off mechanism, the power take-off mechanism bag
Housing, power output shaft and power input shaft are included, the power output shaft, which is rotatably assorted, is supported on housing and its power output
End vertically extends housing, and the power input shaft is used for the bent axle output power for receiving engine；Power input shaft is rotatably assorted
It is installed on housing and is driven, existing fit system can be used, will not be repeated here, between power output shaft and housing
Matching relationship increases the overall stability of mechanism to be rotatably assorted and being formed support；Power input shaft is started for receiving
Mechanomotive force, by kinds of drive such as gears, it will not be repeated here.
Further, the power input shaft sets parallel to engine crankshaft and is used to input engine crankshaft power, institute
State power output shaft and be space perpendicularly to power input shaft；This structure can facilitate engine arrangement, i.e., (rubbed using ordinary motor vehicle
Motorcycle) engine can be formed vertical axis output, integral power infrastructure cost is relatively low, and stable.
Further, the power input shaft transmission, which coordinates, is provided with drive bevel gear, and pto, which coordinates to be provided with, to be used
In the driven wheel of differential with drive bevel gear engaged transmission；The power input shaft, which is provided with, to be used to be provided with the bent axle of engine
Power output gear engaged transmission power input gear, the conversion of outbound course, structure are realized by bevel gear Meshing Pair
Simple and output is stable；Realize and be driven entirely through gear pair so that whole power system architecture simple and compact, take smaller sky
Between, and stable transmission.
Further, the power output shaft is coordinated by taper roll bearing and housing into rotation, passes through taper roll bearing
Formation is rotatably assorted, more suitable for the support and rotation of vertical axes, the transmission such as play shakiness caused by partial offset axial force
Problem.
Further, the housing is detachably provided with the bearing block for installing the taper roll bearing, the power
Output shaft is axially fixed at bearing block and is rotatably assorted with bearing block by taper roll bearing；Formed using single bearing block
Coordinate, the axiality between bearing block and power output shaft can be conveniently adjusted in installation and use, avoid by housing entirety
Form and position error caused by manufacture, so as to the installation beneficial to power output shaft and beneficial to stable power output；Also, due to axle
Bearing is absolute construction, can facilitate the replacing and maintenance of bearing and assembly.
Further, the bearing block is T-shaped nested structure, and the housing is provided with bearing saddle bore, and bearing block penetrates bearing saddle bore
And the edge of a wing of T-shaped nested structure is installed on housing outboard end corresponding with bearing saddle bore by detachable；As illustrated, T-shaped
The edge of a wing of nested structure is gone back with being additionally provided with steel pad between outboard end corresponding with bearing saddle bore on housing while being formed and being sealed
Morpheme is installed beneficial to adjustment, beneficial to guarantee installation axiality and there is certain adaptability.
Further, the taper roll bearing includes upper taper roll bearing and lower taper roll bearing, corresponds to peace respectively
Upper and lower ends loaded on inner hole of bearing seat are used for rotational support power output shaft, and the inner hole of bearing seat upper and lower ends are processed respectively
Have for the corresponding upper heavy platform and sinking platform for installing taper roll bearing and lower taper roll bearing；Two taper roll bearings
Axial force can be born simultaneously, increase stability；And heavy platform structure is more conducive to form stable load basis, forms axial and footpath
To constraint, beneficial to installation position while ensure long-term axiality.
Further, at least two bullets being vertically set up in parallel are passed through between the bearing saddle bore inner circle and bearing block are cylindrical
Property circle coordinate；Elastic ring typically uses O-ring seal, also with preferable deformability while with sealing function, so as to
Make bearing block that there is preferable axiality adaptability, ensure the stability of power output, avoid forming eccentric wear between revolute pair.
Further, bearing block is detachable is provided with the bearing collectively formed with bearing block with the bearing installation cavity of extraneous sealing
End cap, the clutch end sealing of the power output shaft pass bearing (ball) cover, by the setting of bearing (ball) cover, can facilitate bearing
Cleaning, the examination and maintenance in intracavitary portion；Also, the presence of bearing installation cavity can make bearing radiating good, and have abundant profit
Sliding space.
Further, the upper taper roll bearing bears the downward axial force of power output shaft, and lower taper roll bearing is held
By the upward axial force of power output shaft；For input and output direction difference rationally set have bear axial force ability
Taper roll bearing, power output is avoided the interference of axial force, also directly eliminated with specific aim, improve output essence
Degree.
Beneficial effects of the present invention：The aircraft engine assembly of the present invention, output mechanism are used and directly propped up by housing
The structure of racking power output shaft so that the matching relationship between power output shaft and housing increases to be rotatably assorted and forming support
Add the overall stability of mechanism, so as to stable power output；Output mechanism is simple and compact for structure, lighter in weight, takes
Space is smaller, is applied to small aircraft use after collectively forming engine assembly with engine.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is schematic structural view of the invention；
Fig. 2 is that the present invention installs and uses schematic diagram.
Embodiment
Fig. 1 is schematic structural view of the invention, and Fig. 2 is that the present invention installs and uses schematic diagram, as shown in the figure：The present embodiment flies
Row device engine assembly, including engine 16 and power take-off mechanism, the power take-off mechanism include housing 1, power output
Axle 5 and power input shaft 13, the power output shaft 5, which is rotatably assorted, is supported on housing 1 and its clutch end vertically extends
Housing 1, the power input shaft 13 are used for the bent axle output power for receiving engine 16；Power input shaft 13 is rotatably assorted installation
In housing 1 and it is driven, existing fit system can be used, will not be repeated here；Matching somebody with somebody between power output shaft and housing
Conjunction relation increases the overall stability of mechanism to be rotatably assorted and being formed support；Power input shaft 13 then typically with engine 16
Bent axle is by being driven auxiliary driving, for receiving engine power, by kinds of drive such as gears, will not be repeated here.
In the present embodiment, the power input shaft 13 sets parallel to the bent axle of engine 16 and is used to input the song of engine 16
Axle power, the power output shaft 5 are space perpendicularly to power input shaft 13, and spatial vertical is referred to flat with the two axis
Projection in capable plane is vertical；As illustrated, the axle of installation position 20 of the crankshaft installed position 19 and power input shaft 13 on housing 1
Line is parallel；This structure can facilitate engine arrangement, i.e., can be formed vertically using ordinary motor vehicle (including motorcycle) engine
Axle exports, and integral power infrastructure cost is relatively low, and stable.
In the present embodiment, the transmission of power input shaft 13, which coordinates, is provided with drive bevel gear 15, and the transmission of power output shaft 5 is matched somebody with somebody
Close the driven wheel of differential 12 for being provided with and being used for the engaged transmission of drive bevel gear 15；The power input shaft 13 is provided with power input tooth
Wheel 14；The bent axle of engine 16 transmits power to power input gear 14, can by way of intermediate reduction gear mechanism (such as
Jackshaft is provided with the structure of intermediate drive gear) etc., it can be set as needed, it is no longer superfluous herein；In the present embodiment, hair
Direct-drive is engaged by gear between the bent axle of motivation 16 and power input shaft 13, and engine crankcase and housing one into
Type is compact-sized light；The conversion of outbound course, simple in construction and output stabilization are realized by bevel gear Meshing Pair；It is overall logical
Cross gear pair and realize transmission so that whole power system architecture simple and compact, take smaller space, and stable transmission.
In the present embodiment, the power output shaft 5 is rotatably assorted by taper roll bearing and housing 1, is rolled by circular cone
Sub- bearing is formed and is rotatably assorted, and more suitable for the support and rotation of vertical axes, play etc. caused by partial offset axial force is driven
The problem of unstable.
In the present embodiment, the housing 1 is detachably provided with the bearing block 8 for installing the taper roll bearing, institute
Power output shaft 5 is stated to be axially fixed at bearing block 8 and be rotatably assorted by taper roll bearing with bearing block 8；Using single
Bearing block formed coordinate, the axiality between bearing block and power output shaft can be conveniently adjusted in installation and use, avoid by
Driving error caused by the Form and position error of the overall manufacture of housing 1, so as to the installation beneficial to power output shaft and beneficial to stable
Power output；Also, due to bearing block 8 be absolute construction and with power output shaft axial restraint, bearing and total can be facilitated
Into replacing and maintenance, and the engagement of convenient adjustment gear.
In the present embodiment, the bearing block 8 is T-shaped nested structure, and the housing 1 is provided with bearing saddle bore, and bearing block 8 penetrates axle
The edge of a wing of bearing hole and T-shaped nested structure is installed on outboard end corresponding with bearing saddle bore on housing 1 by detachable；As schemed
Show, the edge of a wing of T-shaped nested structure is close being formed with being additionally provided with steel pad 10 between outboard end corresponding with bearing saddle bore on housing 1
Beneficial to guarantee installation axiality and also there is certain adaptation energy using the thickness adjustment installation morpheme of steel pad 10 while envelope
Power.
In the present embodiment, the taper roll bearing includes upper taper roll bearing 4 and lower taper roll bearing 2, respectively
The corresponding upper and lower ends for being installed on inner hole of bearing seat are used for rotational support power output shaft 5, the inner hole of bearing seat upper and lower ends
It is machined with respectively for the corresponding upper heavy platform 7 and sinking platform 11 for installing taper roll bearing 4 and lower taper roll bearing 2；Together
When, the structure to upper taper roll bearing 4 and the lower axial limiting of taper roll bearing 2 is also formed on power output shaft, as schemed institute
Show, driven wheel of differential is integrally formed with power output shaft, convenient installation；Two taper roll bearings can bear axial force simultaneously,
Increase stability；As illustrated, the lower outer ring of taper roll bearing 2 is against sinking platform 11 upwards, inner ring lower end is against power output
The shaft shoulder on axle；The upper outer ring of taper roll bearing 4 is against downwards heavy platform 7, and inner ring upper end is by the retaining ring on power output shaft
17 (screw threads) are locked downwards, and the structure causes power output shaft to form axial integrative-structure with bearing block, in adjustment steel pad 10
Thickness when, can adjust driven wheel of differential axial location；As illustrated, the drive bevel gear 15 also adjustable axle to position
Put, for being engaged with driven wheel of differential, reach preferable engagement, prevent heel and toe wear and spot corrosion, adjustment part is annular shim
21, the both ends of power input shaft 13 are rotatably assorted by annular bearing with rolling contact respectively is supported in casing 1, the drive bevel gear
The ring-shaped step (the present embodiment is formed in one) set on power input shaft 13 is withstood in 15 front ends, wherein an annular shim 21
Between the back of drive bevel gear 3 and corresponding annular bearing with rolling contact inner ring, another annular shim is located on power input shaft 13
Between the inner ring of the shaft shoulder of setting and corresponding annular bearing with rolling contact, change the thickness of two drive bevel gear annular shims
Axial location is adjusted, it is simple in construction, it is easy to accomplish；Said structure can adjust the engagement situation of bevel gear Meshing Pair, be more conducive to
Stable load basis is formed, axial and radial direction constraint is formed, ensures long-term axiality while positioning beneficial to installation.
In the present embodiment, the bearing saddle bore inner circle and bearing block 8 it is cylindrical between vertically set side by side by least two
The elastic ring 9 put coordinates；Elastic ring 9 typically uses O-ring seal, also with preferable deformation energy while with sealing function
Power, so that bearing block 8 has certain swing free degree in the case of restrained, so as to be adapted to preferable axiality
Ability, ensure the stability of power output, avoid forming eccentric wear between revolute pair.
In the present embodiment, bearing block 8 is detachable to be provided with the bearing installation cavity collectively formed with bearing block 8 with extraneous sealing
3 bearing (ball) cover 6, as illustrated, bearing (ball) cover 6 is arranged at bearing block 8 by the way that screw is detachable, and alignment pin is provided with, side
Just installation positioning；The clutch end sealing of the power output shaft 5 passes bearing (ball) cover 6, as illustrated, bearing (ball) cover 6 is used
Oil sealing 18 is provided with the clutch end ending cover hole through power output shaft 5, forms sealing；The setting of bearing (ball) cover, it can facilitate
Cleaning, examination and maintenance inside bearing bore；Also, the presence of bearing installation cavity can make bearing radiating good, and with abundant
Lubricating place.
In the present embodiment, the upper taper roll bearing 4 bears the downward axial force of power output shaft, lower taper roller axle
Hold 2 and bear the upward axial force of power output shaft；For input and output direction difference rationally set have bear axial force
The taper roll bearing of ability, power output is avoided the interference of axial force, also directly eliminated with specific aim, improved
Output accuracy.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (6)
- A kind of 1. aircraft engine assembly, it is characterised in that：Including engine and power take-off mechanism, the output machine Structure includes housing, power output shaft and power input shaft, and the power output shaft, which is rotatably assorted, is supported on housing and its power Output end vertically extends housing, and the power input shaft is used for the bent axle output power for receiving engine, the power output shaft Coordinated by taper roll bearing and housing into rotation, the housing is detachably provided with for installing the taper roll bearing Bearing block, the power output shaft is axially fixed at bearing block and is rotatably assorted with bearing block by taper roll bearing, described Bearing block is T-shaped nested structure, and the housing is provided with bearing saddle bore, and bearing block penetrates the edge of a wing quilt of bearing saddle bore and T-shaped nested structure It is detachable to be installed on housing outboard end corresponding with bearing saddle bore, on the edge of a wing of T-shaped nested structure and housing with bearing block Steel pad is provided between outboard end corresponding to hole；The taper roll bearing includes upper taper roll bearing and lower taper roller axle Hold, correspond to respectively and be installed on the upper and lower ends of inner hole of bearing seat and be used for rotational support power output shaft, on the inner hole of bearing seat Lower both ends are machined with for the corresponding upper heavy platform and sinking platform for installing taper roll bearing and lower taper roll bearing respectively.
- 2. aircraft engine assembly according to claim 1, it is characterised in that：The power input shaft is parallel to starting Machine crankshaft sets and is used to input engine crankshaft power, and the power output shaft is space perpendicularly to power input shaft.
- 3. aircraft engine assembly according to claim 2, it is characterised in that：The power input shaft transmission cooperation is set There is drive bevel gear, pto coordinates the driven wheel of differential for being provided with and being used for drive bevel gear engaged transmission；It is described Power input shaft is provided with the power input gear for the power output gear engaged transmission for being used for being provided with the bent axle of engine.
- 4. aircraft engine assembly according to claim 1, it is characterised in that：The bearing saddle bore inner circle and bearing block Coordinated between cylindrical by least two elastic rings being vertically set up in parallel.
- 5. aircraft engine assembly according to claim 1, it is characterised in that：Bearing block is detachable to be provided with and bearing Seat collectively forms the bearing (ball) cover with the bearing installation cavity of extraneous sealing, and the clutch end sealing of the power output shaft passes Bearing (ball) cover.
- 6. aircraft engine assembly according to claim 1, it is characterised in that：The upper taper roll bearing bears to move The downward axial force of power output shaft, lower taper roll bearing bear the upward axial force of power output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667438.XA CN105114173B (en) | 2015-09-30 | 2015-09-30 | Aircraft engine assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510667438.XA CN105114173B (en) | 2015-09-30 | 2015-09-30 | Aircraft engine assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114173A CN105114173A (en) | 2015-12-02 |
| CN105114173B true CN105114173B (en) | 2018-04-03 |
Family
ID=54662255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510667438.XA Active CN105114173B (en) | 2015-09-30 | 2015-09-30 | Aircraft engine assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114173B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406404A (en) * | 1973-01-09 | 1975-09-17 | Volvo Penta Ab | Outboard drive for boats |
| JPH10114299A (en) * | 1996-10-09 | 1998-05-06 | Sanshin Ind Co Ltd | Outboard motor |
| US6132272A (en) * | 1998-02-10 | 2000-10-17 | Honda Giken Kogyo Kabushiki Kaisha | Marine propulsion system |
| CN2434435Y (en) * | 2000-06-15 | 2001-06-13 | 王京康 | I.C. engine having vertical power output |
| CN1537779A (en) * | 2003-04-18 | 2004-10-20 | 本田技研工业株式会社 | Drive shift support mechanism of ship propulsion unit |
| CN2746137Y (en) * | 2004-09-08 | 2005-12-14 | 重庆川渝精工机械配件开发有限公司 | Built-in reverse gear rear-axle drive device of regular tricycle |
-
2015
- 2015-09-30 CN CN201510667438.XA patent/CN105114173B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1406404A (en) * | 1973-01-09 | 1975-09-17 | Volvo Penta Ab | Outboard drive for boats |
| JPH10114299A (en) * | 1996-10-09 | 1998-05-06 | Sanshin Ind Co Ltd | Outboard motor |
| US6132272A (en) * | 1998-02-10 | 2000-10-17 | Honda Giken Kogyo Kabushiki Kaisha | Marine propulsion system |
| CN2434435Y (en) * | 2000-06-15 | 2001-06-13 | 王京康 | I.C. engine having vertical power output |
| CN1537779A (en) * | 2003-04-18 | 2004-10-20 | 本田技研工业株式会社 | Drive shift support mechanism of ship propulsion unit |
| CN2746137Y (en) * | 2004-09-08 | 2005-12-14 | 重庆川渝精工机械配件开发有限公司 | Built-in reverse gear rear-axle drive device of regular tricycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114173A (en) | 2015-12-02 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: The 400052 District of Chongqing Kowloon Park C District Co-patentee after: Chongqing Longxin Engine Co., Ltd. Patentee after: Chongqing Longxin Engine Ltd. Address before: The 400015 District of Chongqing Kowloon Park C District Patentee before: Chongqing Longxin Engine Ltd. |
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| TR01 | Transfer of patent right |