CN110259913A - Duct-Burning Turbofan, star gear train case and herringbone gear installation - Google Patents
Duct-Burning Turbofan, star gear train case and herringbone gear installation Download PDFInfo
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- CN110259913A CN110259913A CN201810199341.4A CN201810199341A CN110259913A CN 110259913 A CN110259913 A CN 110259913A CN 201810199341 A CN201810199341 A CN 201810199341A CN 110259913 A CN110259913 A CN 110259913A
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- Prior art keywords
- gear
- shaft
- shaft part
- herringbone
- installation
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/14—Construction providing resilience or vibration-damping
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- 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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/038—Gearboxes for accommodating bevel gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Gears, Cams (AREA)
Abstract
The purpose of the present invention is to provide a kind of Duct-Burning Turbofan, star gear train case and herringbone gear installations to make it become flexible connection to achieve the purpose that overcome the problems, such as unbalance loading by changing the rigidity of herringbone bear two sides tooth middle transition section connection.Herringbone gear installation therein includes first gear, second gear and gear shaft, first gear is incorporated in the first shaft part of the gear shaft by elastic element, the second gear is incorporated in the second shaft part of the gear shaft by elastic element, and axial restraint is carried out to the first gear, the second gear by fastener, the first gear and the second gear are axially spaced on the gear shaft and synthesize herringbone bear, so that the first gear, the second gear is mutually rotated certain angle using the deformation of the elastic element.
Description
Technical field
The present invention relates to herringbone bears.
Background technique
Currently, each engine manufacturer all is falling over each other to study gear drive Duct-Burning Turbofan, it is mainly characterized by wind
Increase a set of star-like reduction gear box between fan and pressure-charge compressor, so as to so that fan is turned from pressure-charge compressor with different
Speed work, greatly improves the working efficiency of engine.The core of this configuration is planetary reduction gear box, mainly by it is star-like wheel,
Sun gear and gear ring composition.In order to improve the intensity of gear and the effect of anti-shock loading, while in order to offset axial force, each tooth
Wheel is designed as double helical tooth.The double helical tooth of gear-box all uses two sides tooth to be integrally designed at present, i.e., there are phases among the gear teeth of two sides
The escape or disconnection spacing answered, the rigid connection of two side gears.But the rigid connection of the two sides gear teeth is processed the gear teeth and is proposed
Very high requirement, once being influenced by machining accuracy and rigging error, unbalance loading, load occur in the process of running for gear-box
It will be transferred to the other side from the side of double helical tooth, keeps the load distribution of two sides wheel between cog uneven, influence the service life of gear,
Excessive vibration is also brought to gear-box simultaneously, finally will affect riding quality and the service life of engine.
For the vibration for reducing planetary gear reduction box, usually sun gear therein, planetary gear, gear ring etc. are designed as floating
Structure, it is additionally uneven by manufacture, rigging error bring by floating structure elimination in this way in gear-box operational process, with
Improve the riding quality of gear-box.But these solutions are just for the imbalance problem between different types of gear, it is right
In the not too many solution of the imbalance problem of double helical tooth itself, current solution is to improve machining accuracy or assembly
Precision.Therefore processing and assembly essence are largely limited by using the riding quality of the planetary gear reduction box of herringbone toothing
Degree.
Summary of the invention
The purpose of the present invention is to provide a kind of Duct-Burning Turbofan, star gear train case and herringbone gear installations, by changing
The rigidity for becoming the connection of herringbone bear two sides tooth middle transition section makes it become flexible connection to reach the mesh for overcoming the problems, such as unbalance loading
's.
A kind of herringbone gear installation comprising first gear, second gear and gear shaft, first gear pass through elasticity member
Part is incorporated in the first shaft part of the gear shaft, and the second gear is incorporated in the second axis of the gear shaft by elastic element
Section, and axial restraint, the first gear and described second are carried out to the first gear, the second gear by fastener
Gear is axially spaced on the gear shaft and synthesizes herringbone bear, makes first tooth using the deformation of the elastic element
Wheel, the second gear can mutually rotate certain angle.
In one or more embodiments, first gear is incorporated in the first of the gear shaft by rubber composite material
Shaft part, the second gear are incorporated in the second shaft part of the gear shaft by rubber composite material.
It is middle transition section, institute between first shaft part and second shaft part in one or more embodiments
Stating middle transition section has lower rigidity relative to the first shaft part and second shaft part, to allow first shaft part and institute
State the second shaft part relative torsion.
In one or more embodiments, the middle transition section is hollow structure, and is circumferentially opened up on axle body
Several slots, to reduce its rigidity.
In one or more embodiments, the rubber composite material utilizes intrinsic viscosity by described first by heating
Gear and the first shaft part, the second gear and second shaft part are separately connected.
In one or more embodiments, first shaft part is connected with second shaft part by membranous disc.
A kind of star gear train case includes sun gear, multiple planetary gears and ring gear, planetary gear and sun gear and described interior
Gear ring engages respectively, and the tooth of engagement is double helical tooth, and the planetary gear, the planetary gear and the ring gear are respectively configured to appoint
Herringbone gear installation described in one.
A kind of Duct-Burning Turbofan, including fan and pressure-charge compressor, by least a set of between fan and pressure-charge compressor
Star gear train case is driven, and the star gear train case is the star gear train case.
Under the premise of not changing herringbone gear shaft bulk, linkage section among herringbone gear shaft is become flexible and is connected
It connects, flexible connection section has absorbing effect, while can compensate to the base pitch error of two side gears, inhibits to lead due to unbalance loading
The displacement transfer of cause avoids gear shaft spring bearing from damaging, the final even running for realizing gear-box.
Detailed description of the invention
The above and other features of the present invention, property and advantage will pass through retouching with reference to the accompanying drawings and examples
It states and becomes readily apparent from, in which:
Fig. 1 is the Local map of Duct-Burning Turbofan in one or more embodiments；
Fig. 2 is the partial sectional view of star-like gear-box in one or more embodiments；
Fig. 3 is the half sectional view of herringbone gear installation in one or more embodiments；
Fig. 4 is the main view of herringbone gear installation in one or more embodiments；
Fig. 5 is the main view of herringbone gear installation in one or more embodiments.
Specific embodiment
It is following to disclose the embodiment or embodiment of subject technology scheme described in a variety of different implementations.For simplification
The specific example of each element and arrangement is described below in disclosure, and certainly, these are only example, is not to this
The protection scope of invention is limited.Such as the fisrt feature then recorded in the description above second feature or above
It is formed, may include the embodiment that the first and second features are formed by way of directly contacting, also be included in the first He
The embodiment that supplementary features are formed between second feature, to can not directly be contacted between the first and second features.In addition,
In these disclosures may in different examples repeat reference numerals and/or letter.The repetition is in order to brief and clear
Chu itself does not indicate each embodiment being discussed and/or interstructural relationship.Further, when first element be with
The mode that second element is connected or combines describes, which includes the reality that the first and second elements are connected directly or are bonded to each other
Mode is applied, also includes so that the first and second interelements ground connection is connected or is tied each other using one or more other intervening elements additions
It closes.
Fig. 1 shows fan 1, and fan 1 is fixedly connected with the ring gear of star gear train case 2, the sun gear of star gear train case 2
With the coaxial connection of pressure-charge compressor not shown in the figure.The power of fan 1 is transmitted to pressure-charge compressor by star gear train case 2,
By adjusting the transmission ratio of star gear train case 2, the revolving speed that fan 1 and pressure-charge compressor can be allowed to set rotates respectively, and two
Difference can be set into the revolving speed of person.
Fig. 2 shows the half of the half sectional view of star-like gear-box in one or more embodiments, with central axis X
Centered on rotate, including sun gear 5, multiple planetary gears 4 and ring gear 3.Sun gear 5, multiple planetary gears 4 and ring gear 3
Herringbone gear installation described in one or more embodiments as described later be can choose to construct respectively.
According to one or more embodiments, as shown in figure 3, herringbone gear installation includes first gear 12, second gear
13 and gear shaft 11, first gear 12 is incorporated in the first shaft part 111 of gear shaft 11, the i.e. left side in figure by elastic element 14
Shaft part, second gear 13 is incorporated in the second shaft part 112 of gear shaft 11 by elastic element 15, i.e., the shaft part on the right in figure,
And axial restraint is carried out to first gear 12, second gear 13 by fastener not shown in the figure.First gear 12 and second
Gear 13 is axially spaced on gear shaft 11 and is combined into a herringbone bear, makes using the deformation of elastic element 14,15
One gear 12, second gear 13 can mutually rotate certain angle.Two side gears are enable mutually to turn using the deformation of elastic element
Certain angle is moved, so as to compensate manufacturing and positioning errors.Further, since connection type flexible has been used, so that two
The gear of side not only can mutually rotate certain angle, moreover it is possible to and the certain angle of each self-swinging is not high for assembly precision
Two side gear of occasion can be each self-centering, influences each other smaller, to improve herringbone bear traveling comfort, reduction is transferred to outer
The vibration and noise on boundary can use vibration and impact when the elastic element between gear and connecting shaft absorbs gear engagement,
To reduce the vibration for being transmitted to complete machine.
In one or more embodiments, elastic element 14,15 can be rubber composite material, and rubber composite material can
To utilize intrinsic viscosity by first gear 12 and the first shaft part 111, the second tooth with good binding performance, such as by heating
Wheel 13 and the second shaft part 112 are separately connected
The fastener that first gear 12, second gear 13 carry out axial restraint be can be into nut or bolt or riveting
Part, such as according at least one embodiment, first gear 12, second gear 13 inner end carried out by the shaft shoulder of gear shaft 11
Limit, and outer end is fastened by bolts.
As shown in figure 4, being intermediate mistake between the first shaft part 111 and the second shaft part 112 in one or more embodiments
Section 113 is crossed, middle transition section 113 has lower rigidity relative to the first shaft part 111 and the second shaft part 112, to allow first
112 relative torsion of shaft part 111 and the second shaft part.The embodiment for making middle transition section 113 have more Low rigidity includes but unlimited
In the material for reducing middle transition section, at least one embodiment, middle transition section 113 is hollow shaft, on axle body also
Several slots 9 of circumferentially branch are provided with, middle transition section 113 is similar to mouse cage bullet branch structure, and slot 9 not only reduces intermediate mistake
The rigidity of section 113 is crossed, and also reduces the weight of whole device, the rigidity of middle transition section 113 is arranged lower, and is same
When first gear 12, second gear 13 combined by elastic element 14,15, can have in the design of flexible connection more
Adjust leeway.
As shown in figure 5, the first shaft part 12 and the second shaft part 13 are connected by membranous disc 10 in one or more embodiments
It connects, membranous disc has certain elasticity, can compensate the transmitting of power caused by Basis of Gear Deviation Load and vibration, can substitute aforementioned similar to mouse cage
The middle transition section of bullet branch structure.
Ring gear 3 is constructed according to according to the herringbone gear installation of aforementioned embodiments, i.e., its corresponding gear shaft is hollow
Axis, and corresponding first gear, second gear are respectively gear ring, press-in cooperation is in the axis hole of gear shaft, before being likewise supplied with
State advantage.
According to aforementioned embodiments, under the premise of not changing herringbone gear shaft bulk, among herringbone gear shaft
Linkage section becomes to be flexibly connected, and flexible connection section has absorbing effect, while can mend to the base pitch error of two side gears
It repays, inhibits the displacement transfer as caused by unbalance loading, gear shaft spring bearing is avoided to damage, the final steady fortune for realizing gear-box
Row.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any modification to the above embodiments, equivalent variations
And modification, it each falls within the protection scope that the claims in the present invention are defined.
Claims (8)
1. herringbone gear installation, which is characterized in that including first gear, second gear and gear shaft, first gear passes through bullet
Property element is incorporated in the first shaft part of the gear shaft, and the second gear is incorporated in the of the gear shaft by elastic element
Two shaft parts, and axial restraint, the first gear and described are carried out to the first gear, the second gear by fastener
Second gear is axially spaced on the gear shaft and synthesizes herringbone bear, makes described using the deformation of the elastic element
One gear, the second gear can mutually rotate certain angle.
2. herringbone gear installation as described in claim 1, which is characterized in that first gear is incorporated in by rubber composite material
First shaft part of the gear shaft, the second gear are incorporated in the second shaft part of the gear shaft by rubber composite material.
3. herringbone gear installation as described in claim 1, which is characterized in that between first shaft part and second shaft part
For middle transition section, the middle transition section has lower rigidity relative to the first shaft part and second shaft part, to allow
First shaft part and the second shaft part relative torsion.
4. herringbone gear installation as claimed in claim 3, which is characterized in that the middle transition section is hollow structure, and
Several slots are opened up on axle body, circumferentially to reduce its rigidity.
5. herringbone gear installation as claimed in claim 2, which is characterized in that the rubber composite material is by heating using certainly
The first gear and the first shaft part, the second gear and second shaft part are separately connected by body viscosity.
6. herringbone gear installation as claimed in claim 2, which is characterized in that first shaft part and second shaft part pass through
Membranous disc connection.
7. a kind of star gear train case, including sun gear, multiple planetary gears and ring gear, planetary gear and sun gear and the internal tooth
Circle engages respectively, and the tooth of engagement is double helical tooth, and the planetary gear, the planetary gear and the ring gear are respectively configured to such as power
Benefit require any one of 1 to 6 described in herringbone gear installation.
8. a kind of Duct-Burning Turbofan, including fan and pressure-charge compressor pass through at least a set of star between fan and pressure-charge compressor
Type gear-box is driven, which is characterized in that the star gear train case is star gear train case as claimed in claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199341.4A CN110259913B (en) | 2018-03-12 | 2018-03-12 | Fan engine, star-shaped gear box and herringbone gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810199341.4A CN110259913B (en) | 2018-03-12 | 2018-03-12 | Fan engine, star-shaped gear box and herringbone gear device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110259913A true CN110259913A (en) | 2019-09-20 |
| CN110259913B CN110259913B (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810199341.4A Active CN110259913B (en) | 2018-03-12 | 2018-03-12 | Fan engine, star-shaped gear box and herringbone gear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259913B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243887A (en) * | 1975-10-06 | 1977-04-06 | Matsuki Itaya | Method of making double helical gear of rubber |
| EP0340812A1 (en) * | 1987-04-08 | 1989-11-08 | Helmut Pelzer | Damping means for damping the emission of air-conducted or structural noise by a wheel divided perpendicularly to the axis, especially a toothed wheel |
| CN201330832Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Double helical gear transmission mechanism |
| CN103851168A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Combined herringbone gear structure |
| CN104141745A (en) * | 2014-07-29 | 2014-11-12 | 西北工业大学 | Star type herringbone gear reducer |
| CN205244294U (en) * | 2015-12-28 | 2016-05-18 | 浙江长宏机电有限公司 | Split type herringbone gear |
| CN205350271U (en) * | 2015-12-04 | 2016-06-29 | 重庆万里江发链轮有限公司 | Integral flexible filtering duplex sprocket |
-
2018
- 2018-03-12 CN CN201810199341.4A patent/CN110259913B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5243887A (en) * | 1975-10-06 | 1977-04-06 | Matsuki Itaya | Method of making double helical gear of rubber |
| EP0340812A1 (en) * | 1987-04-08 | 1989-11-08 | Helmut Pelzer | Damping means for damping the emission of air-conducted or structural noise by a wheel divided perpendicularly to the axis, especially a toothed wheel |
| CN201330832Y (en) * | 2008-12-30 | 2009-10-21 | 二重集团（德阳）重型装备股份有限公司 | Double helical gear transmission mechanism |
| CN103851168A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | Combined herringbone gear structure |
| CN104141745A (en) * | 2014-07-29 | 2014-11-12 | 西北工业大学 | Star type herringbone gear reducer |
| CN205350271U (en) * | 2015-12-04 | 2016-06-29 | 重庆万里江发链轮有限公司 | Integral flexible filtering duplex sprocket |
| CN205244294U (en) * | 2015-12-28 | 2016-05-18 | 浙江长宏机电有限公司 | Split type herringbone gear |
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| Publication number | Publication date |
|---|---|
| CN110259913B (en) | 2021-03-26 |
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