CN207421283U - wind power generation speed-increasing gearbox - Google Patents
wind power generation speed-increasing gearbox Download PDFInfo
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- CN207421283U CN207421283U CN201721587326.4U CN201721587326U CN207421283U CN 207421283 U CN207421283 U CN 207421283U CN 201721587326 U CN201721587326 U CN 201721587326U CN 207421283 U CN207421283 U CN 207421283U
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- turbine stage
- planetary gear
- gear train
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Abstract
The utility model provides a kind of wind power generation speed-increasing gearbox, including slow speed turbine stage planetary gear train, middling speed grade planetary gear train and high speed grade Cylinder Gear train, slow speed turbine stage planetary gear train is identical with the structure setting of middling speed grade planetary gear train, slow speed turbine stage planet carrier input terminal inputs driving torque and initial speed, slow speed turbine stage planetary gear there are two being set around slow speed turbine stage sun gear, one end of slow speed turbine stage end-float coupling external tooth and slow speed turbine stage sun gear floating connection, the other end and the tooth-like connection of middling speed grade planet carrier input terminal；One end of middling speed grade end-float coupling external tooth and middling speed grade sun gear floating connection, the other end are connected with the input shaft gear of high speed grade Cylinder Gear train；Accelerating function of the high speed grade Cylinder Gear train through high speed grade gear wheel and high speed level little gear axis exports.The wind power generation speed-increasing gearbox of the utility model has the unbalance loading and the advantageous effect for carrying transmission is realized in planetary gear train drive mechanism for overcome thing problems, such as that planetary gear train generates in transmission process.
Description
Technical field
The utility model is related to the gear-box fields that generates electricity, and in particular to a kind of wind power generation speed-increasing gearbox.
Background technology
Compact-sized due to having many advantages, such as, small, transmission efficiency and gearratio are big, and Planetary Gear Transmission is extensive
It applies in fields such as wind-driven generator transmission system, aviation power transmission system, vehicle drive systems.Wind energy is to clean in the world
One of pollution-free and renewable important energy source, with energy shortage and the worsening of ecological environment, it is widely acknowledged that
The importance of new energy power generation technology.Gear-box is one of critical component of wind power plant, and the load born is very multiple
It is miscellaneous, it is mainly used for step-up drive.Gear-box is one of highest component of wind power generating set failure rate, in order to reduce gear-box
Failure rate improves its working life and reliability, it is necessary to which the impact resistance of Planetary Gear Transmission is furtherd investigate.
The development of wind-powered electricity generation equipment technology is very rapid, such as variable speed constant frequency technology, variable-pitch variable-speed, total power Semiconductor Converting Technology, straight
It drives and semi-directly driven wind-powered unit.Direct drive wind power unit is exempted from a manner that multipolar dynamo and impeller are directly connected to be driven
Gear-box is removed, share of installing in recent years constantly increases.But due to technology and cost etc., within the following long period
Wind turbines with step-up gear will be occupied an leading position in the market.Moreover, the knot of current wind power generation speed-increasing gearbox
Structure has very much, and is designed mostly with reference to transmission power and speed increasing ratio, but for powerful wind-power electricity generation such as
Fruit planet carrier floats during rotation, causes larger torque, and then can seriously damage the use longevity of power generation gear-box
Life and initiation gear-box break down.
Therefore, the wind-driven generator wheel-box being evenly distributed there is an urgent need in the art to develop a kind of power of making.
Utility model content
The purpose of the utility model is to provide a kind of wind power generation speed-increasing gearbox, and planetary gear train can be overcome to be driven
It the unbalance loading problem that is generated in journey and is realized in planetary gear train drive mechanism and carries transmission.
The utility model provides a kind of wind power generation speed-increasing gearbox, including slow speed turbine stage planetary gear train, middling speed grade planetary gear
System and high speed grade Cylinder Gear train, the slow speed turbine stage planetary gear train is identical with the structure setting of the middling speed grade planetary gear train,
In,
Load balancing mechanism in the slow speed turbine stage planetary gear train is slow speed turbine stage sun gear and the slow speed turbine stage with its floating connection
End-float coupling external tooth；Load balancing mechanism in the middling speed grade planetary gear train be middling speed grade sun gear and with its floating connection
Middling speed grade end-float coupling external tooth；
Slow speed turbine stage planet carrier input terminal inputs driving torque and initial speed, sets that there are two low around slow speed turbine stage sun gear
Fast grade planetary gear, one end of slow speed turbine stage end-float coupling external tooth and the slow speed turbine stage sun gear floating connection, the slow speed turbine stage float
The other end of dynamic shaft coupling external tooth and the tooth-like connection of middling speed grade planet carrier input terminal；
The middling speed grade planetary gear train is second level planetary gear train, and the middling speed grade planet carrier input terminal is second level planet
The planet carrier input terminal of train is set around middling speed grade sun gear there are two middling speed grade planetary gear, outside middling speed grade end-float coupling
One end of tooth and the middling speed grade sun gear floating connection, the other end and the high speed of the middling speed grade end-float coupling external tooth
The input shaft gear connection of grade Cylinder Gear train；
High speed grade input shaft is connected by two keys with high speed grade gear wheel, finally by high speed grade gear wheel and high speed grade
The accelerating function output of pinion shaft, the high speed level little gear axis are symmetrical arranged compared with the high speed grade gear wheel, generate
Power to be symmetrical.
Preferably, the cross sectional shape in the facewidth direction of the floating gear coupling uses spur type structure.
Preferably, the structure of the slow speed turbine stage planet carrier is using axis and planet carrier one both arms split planet carrier.
The wind power generation speed-increasing gearbox of the utility model has the advantages that compared with prior art：
1st, the wind power generation speed-increasing gearbox of the utility model adds level-one cylinder to shunt power train using gear for two stage planetary gear train,
It can overcome the problems, such as the unbalance loading that planetary gear train generates in transmission, i.e., the planetary gear transmission mechanism can be realized preferably and carried
Transmission.
2nd, the slow speed turbine stage planetary gear train in the wind power generation speed-increasing gearbox of the utility model and middling speed grade planetary gear train are adopted
With mutually isostructural setting, so that compact overall structure is reasonable, and the power generated during wind-power electricity generation is pair
Claim.
3rd, two sun gears are used in the wind power generation speed-increasing gearbox of the utility model as load-balancing device, although using
Sun gear-planet carrier relocatable form uses individual sun gear more preferable as floating effect than simply, but this speed increaser master
If for wind-power electricity generation effect, and it driving torque is larger and volume bigger that planet carrier is caused also to design, due to
Using planet carrier as the condition floated it is planet carrier because the quality is relatively light and speed is slower, will not thus generates larger
Torque, for the above condition, therefore what is designed is use sun gear as load balancing mechanism, thus it with respect to high-power wind
It is more reasonably for power power generation.
4th, the connection of the Planetary Gear Transmission in the wind power generation speed-increasing gearbox of the utility model is tooth-like using floating
Axis device can so realize load effect.
Description of the drawings
It will be briefly described attached drawing used in this application below, it should be apparent that, these attached drawings are only used for explaining this practicality
New design.
Fig. 1 is the sectional view of the wind power generation speed-increasing gearbox structure of the utility model；
Fig. 2 is the sectional view of single tooth type floating gear coupling；
Fig. 3 is the sectional view of twin tooth type floating gear coupling；
Fig. 4 is sectional view of the cross sectional shape in facewidth direction for the floating gear coupling of spur type；
Fig. 5 is the schematic cross-sectional view one of the floating gear coupling of tooth side centering mode；
Fig. 6 is the schematic cross-sectional view two of the floating gear coupling of tooth side centering mode；
Fig. 7 is the sectional view of both arms split planet carrier；
Fig. 8 is the sectional view of the both arms split planet carrier on A-A directions.
Reference numeral summarizes：
1st, slow speed turbine stage planet carrier input terminal 2, slow speed turbine stage sun gear
3rd, slow speed turbine stage planetary gear 4, slow speed turbine stage end-float coupling external tooth
5th, slow speed turbine stage planet carrier output terminal 6, slow speed turbine stage planet wheel spindle
7th, middling speed grade planet wheel spindle 8, middling speed grade planet carrier input terminal
9th, middling speed grade planetary gear 10, middling speed grade planet carrier output terminal
11st, middling speed grade sun gear 12, middling speed grade end-float coupling external tooth
13rd, high speed grade gear wheel 14, key
15th, high speed level little gear axis 16, support shaft
Specific embodiment
Hereinafter, the embodiment of the wind power generation speed-increasing gearbox of the utility model is described with reference to the accompanying drawings.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be based on the application claims and specification institute is public
Using obvious other technical solutions, these technical solutions include making the embodiment recorded herein any the content opened
The technical solution of obvious substitutions and modifications.
The attached drawing of this specification is schematic diagram, aids in illustrating the design of the utility model, it is schematically indicated each several part
Correlation.It note that clearly to show the relation of each several part of the utility model embodiment.It is same or similar
Reference marker for representing the same or similar part.
Fig. 1 is the sectional view of the wind power generation speed-increasing gearbox structure of the utility model, as shown in Figure 1, the utility model
A kind of wind power generation speed-increasing gearbox is provided, including slow speed turbine stage planetary gear train, middling speed grade planetary gear train and high speed grade roller gear
System, the i.e. system of the wind power generation speed-increasing gearbox of the utility model are to add the shunting transmission of level-one cylinder using gear for two stage planetary gear train
System.Wherein, slow speed turbine stage planetary gear train is identical with the structure setting of middling speed grade planetary gear train, and slow speed turbine stage sun gear 2 and middling speed grade are too
Sun wheel 11 is used as load-balancing device.The compact-sized power that is reasonable, generating of wind power generation speed-increasing gearbox so set is also symmetrical
Distribution, so that planetary gear transmission mechanism, which can be realized preferably, carries transmission.
Load balancing mechanism in slow speed turbine stage planetary gear train is slow speed turbine stage sun gear 2 and floats with the slow speed turbine stage of its floating connection
Shaft coupling external tooth 4；Load balancing mechanism in middling speed grade planetary gear train is middling speed grade sun gear 11 and the middling speed with its floating connection
Grade end-float coupling external tooth 12.
Above-mentioned slow speed turbine stage planet carrier input terminal 1 inputs driving torque and initial speed, is provided with around slow speed turbine stage sun gear 2
Two slow speed turbine stage planetary gears 3, slow speed turbine stage planet carrier output terminal 5 are connected with slow speed turbine stage planetary gear 3, slow speed turbine stage end-float coupling external tooth
4 one end and 2 floating connection of slow speed turbine stage sun gear, the other end and middling speed grade planet carrier of slow speed turbine stage end-float coupling external tooth 4 are defeated
Enter 8 tooth-like connections of end, i.e. one end of slow speed turbine stage end-float coupling external tooth 4 and the 8 tooth-like connection of middling speed grade planet carrier input terminal is low
Fast grade planetary gear train output terminal realizes that the first order accelerates in slow speed turbine stage planetary gear train.
Above-mentioned middling speed grade planetary gear train is second level planetary gear train, and middling speed grade planet carrier input terminal 8 is second level planetary gear
The planet carrier input terminal of system, there are two middling speed grade planetary gear 9, middling speed grade planet carrier output terminals for the setting of 11 surrounding of middling speed grade sun gear
10 are connected with middling speed grade planetary gear 9, one end and 11 floating connection of middling speed grade sun gear of middling speed grade end-float coupling external tooth 12, in
The other end of fast grade end-float coupling external tooth 12 is connected with the input shaft gear of high speed grade Cylinder Gear train, in middling speed grade planetary gear
Realize that the second level accelerates in system.
Above-mentioned high speed grade input shaft 20 is connected by two keys 14 with high speed grade gear wheel 13, finally by high speed grade canine tooth
Wheel 13 and the accelerating function of high speed level little gear axis 15 export, and output meets certain rotating speed requirement.High speed level little gear axis 15
It is symmetrical arranged compared with high speed grade gear wheel 13, the power of generation is symmetrical.
It should be noted that above-mentioned slow speed turbine stage end-float coupling external tooth 4 and middling speed grade end-float coupling external tooth 12 is main
It is floating connection that effect, which acts as the effect of connection and its sun gear with planetary gear train, and such sun gear just potentially acts as
Load acts on.
In addition, the slow speed turbine stage planetary gear train load balancing mechanism of the wind power generation speed-increasing gearbox of the utility model be slow speed turbine stage too
Sun wheel 2 and 4 floating connection of slow speed turbine stage end-float coupling external tooth, the other end and middling speed of 4 part of slow speed turbine stage end-float coupling external tooth
The 8 tooth-like connection of grade planet carrier input terminal.Because middling speed grade cage portion is equipped with bearing, therefore middling speed grade planet carrier importation
Floating will not be generated, wherein middling speed grade planetary gear 9 is that load balancing mechanism is outside middling speed grade sun gear 11 and middling speed grade floating shaft joint
Tooth floating connection reaches floating action with this.Due to having used two in the wind power generation speed-increasing gearbox of the utility model
Sun gear as load-balancing device, although using sun gear-planet carrier relocatable form than simply use individual sun gear as float
It is dynamic more preferable, but this speed increaser is primarily used for wind-power electricity generation effect, and its driving torque is larger and cause planet
The volume bigger that frame also designs, due to being planet carrier using planet carrier as the condition floated because the quality is relatively light and speed
It is relatively slow, larger torque will not be thus generated, for the above condition, therefore devises sun gear as load balancing structure, and
And it is more rationally for high-power wind power generation.In addition, two pinion shafts have been used as symmetrical in output terminal
Arrangement, the distribution for thus allowing power is more reasonable.
In the further embodiment of the utility model, the connection of Planetary Gear Transmission uses floating gear coupling, with
This come achieve the purpose that load effect.Floating gear coupling has the structure of monodentate and bidentate.Fig. 2 is that single tooth type floating is tooth-like
The sectional view of axis device, as shown in Fig. 2, single tooth type shaft coupling needs enough length Lg.Fig. 3 is the tooth-like shaft coupling of twin tooth type floating
The sectional view of device as shown in figure 3, twin tooth type shaft coupling is compared with the more complicated of monodentate, however can allow the gear of floating to possess
It tilts and radial translation moves, this can reduce Kβ, therefore in order to reduce KβThe floating gear coupling of the utility model uses
Twin tooth type shaft coupling.
The cross sectional shape in the facewidth direction of above-mentioned floating gear coupling has two kinds of straight-tooth and drum type tooth, cross-sectional shapes
It is that processing is simple for the advantages of spur type structure, there can be smaller inclination angle, generally not more than 30 ', operation when, holds
Gear teeth end stand under load is also easy to produce, tooth surface abrasion is big, and intensity and service life ratio are relatively low.Wherein, cross sectional shape can for the structure of barreled tooth flank
To there is relatively large angle of inclination, it can generally reach 2 °, gear teeth stand under load situation is good, float sensitive, intensity and service life phase
It increases for straight-tooth.Fig. 4 is sectional view of the cross sectional shape in facewidth direction for the floating gear coupling of spur type, is such as schemed
Shown in 4, in order to enable the wind power generation speed-increasing gearbox of the utility model is simple and compact for structure, design is reasonable, preferably selects
The cross sectional shape in facewidth direction is the floating gear coupling of spur type structure.
In addition the centering mode of shaft coupling also has diameter centering and tooth side centering two ways, and tooth side centering opposite outside diameter is determined
The benefit of the heart is having active certralizing ability, is conducive to uniform between shaft coupling Transverse Load, and the utility model is determined using flank
The method of the heart.
Fig. 5 is the schematic cross-sectional view one of the floating gear coupling of tooth side centering mode, and Fig. 6 is the floating of tooth side centering mode
The schematic cross-sectional view two of dynamic gear coupling, as it can be seen in figures 5 and 6, the engagement of floating gear coupling is due to being subject to structural condition
Limitation, do not use non-standard, profile angle α under normal circumstances0=20 °~30 °.Displacement may be employed and non-displacement is engaged,
The modification coefficient x1's and x2 of external gear and internal gear is equal in magnitude in the case of displacement, and direction is identical, can usually take x=0.3
~0.5.Its member and main geometric calculates as follows：
Reference diameter：dg1=dg2=mz
Tip diameter：
Root diameter：
Flank profil average pressure angle：
In formula
Due to the use of be tooth side centering method, so addendum coefficient and height of teeth root coefficient here is as follows：
The basic physical dimension parameter of slow-speed shaft and middling speed axis can be drawn according to more than calculation formula, referring to such as following table
Lattice：
Common planet carrier structure form has three kinds of double-walled integral type, double-walled split and single wall formula forms.Fig. 7 is both arms
The sectional view of split planet carrier, Fig. 8 are the sectional views of the both arms split planet carrier on A-A directions, as shown in FIG. 7 and 8,
After this considers the reasons such as assembling and processing, the knot of the slow speed turbine stage planet carrier in the wind power generation speed-increasing gearbox of the utility model
Configuration formula is using axis and planet carrier one double-walled split planet carrier, material 40Cr identical with inputting big axis.The utility model
Middling speed grade planet carrier structure is also using split planet carrier, material 40Cr.
In the further embodiment of the utility model, the bearing of slow speed turbine stage planet wheel spindle 6 is using self-aligning roller bearing, type
Number for 22338, a diameter of d=190mm, length L=760mm.
In the further embodiment of the utility model, a diameter of d=130mm of middling speed grade planet wheel spindle 7, length L=
540mm, the bearing of use are self-aligning roller bearings, model 22326.Wherein, due to middling speed axis and middling speed grade planet carrier conduct
One, and middling speed grade planet carrier is connected with slow speed turbine stage shaft coupling, so considering to determine the size of middling speed grade input shaft
Size.The input speed of middling speed axis in the utility model is 69r/min, output speed 372r/min.Wherein middling speed axis with
The planetary sun gear of slow speed turbine stage is end-float coupling connection, and middling speed axis and planet carrier are integrated, therefore middling speed axis
Only bearing and positioning shaft shoulder two parts, it is contemplated that the problem of installation of bearing is with being connected shaft coupling, the diameter d1=of middling speed axis
460mm, length L1=56mm, a diameter of d2=490mm, the length L2=20mm of positioning shaft shoulder, it is contemplated that afterbody floats
Formula shaft coupling is connected with the transmission shaft of high speed grade, and high speed grade needs to install bearing, so middling speed grade output terminal is just not
Bearing is installed again, the bearing designation of wherein middling speed grade input terminal installation is 61892.
In the further embodiment of the utility model, since high speed grade input terminal is connected with middling speed grade shaft coupling,
And also by key 14 axis to be made to be connected with gear wheel, it may be determined that its one section relevant with bearing diameter D=280mm, it is long
L=135mm is spent, the positioning of bearing is to lean on the positioning shaft shoulder of axis itself and the positioning of gear wheel projection portion, the positioning shaft shoulder of axis
Diameter D2=302mm, long L2=20mm, be support shaft 16 axle bearing mount portion position, the bearing designation of high speed grade input terminal is
NJ1056。
The embodiment of the wind power generation speed-increasing gearbox of the utility model is illustrated above.It is new for this practicality
The specific features of the wind power generation speed-increasing gearbox of type can specifically be designed according to the effect of the feature of above-mentioned disclosure, these
Design is that those skilled in the art can realize.Moreover, each technical characteristic of above-mentioned disclosure be not limited to it is disclosed with
The combination of other feature, those skilled in the art can also be according to other between each technical characteristic of the purpose of the utility model progress
Combination, is subject to the purpose for realizing the utility model.
Claims (3)
1. a kind of wind power generation speed-increasing gearbox, which is characterized in that including slow speed turbine stage planetary gear train, middling speed grade planetary gear train and height
Fast grade Cylinder Gear train, the slow speed turbine stage planetary gear train is identical with the structure setting of the middling speed grade planetary gear train, wherein,
Load balancing mechanism in the slow speed turbine stage planetary gear train is slow speed turbine stage sun gear and floats with the slow speed turbine stage of its floating connection
Shaft coupling external tooth；Load balancing mechanism in the middling speed grade planetary gear train is middling speed grade sun gear and the middling speed with its floating connection
Grade end-float coupling external tooth；
Slow speed turbine stage planet carrier input terminal inputs driving torque and initial speed, sets that there are two slow speed turbine stages around slow speed turbine stage sun gear
Planetary gear, one end of slow speed turbine stage end-float coupling external tooth and the slow speed turbine stage sun gear floating connection, the slow speed turbine stage, which floats, to be joined
The other end of axis device external tooth and the tooth-like connection of middling speed grade planet carrier input terminal；
The middling speed grade planetary gear train is second level planetary gear train, and the middling speed grade planet carrier input terminal is second level planetary gear train
Planet carrier input terminal, set around middling speed grade sun gear there are two middling speed grade planetary gear, middling speed grade end-float coupling external tooth
One end and the middling speed grade sun gear floating connection, the other end and the high speed grade of the middling speed grade end-float coupling external tooth are justified
The input shaft gear connection of stud wheel system；
High speed grade input shaft is connected by two keys with high speed grade gear wheel, finally by high speed grade gear wheel and the small tooth of high speed grade
The accelerating function output of wheel shaft, the high speed level little gear axis are symmetrical arranged compared with the high speed grade gear wheel, the power of generation
To be symmetrical.
2. wind power generation speed-increasing gearbox according to claim 1, which is characterized in that the tooth of the floating gear coupling
The cross sectional shape of cross direction uses spur type structure.
3. wind power generation speed-increasing gearbox according to claim 1, which is characterized in that the structure of the slow speed turbine stage planet carrier
Using axis and planet carrier one both arms split planet carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587326.4U CN207421283U (en) | 2017-11-24 | 2017-11-24 | wind power generation speed-increasing gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587326.4U CN207421283U (en) | 2017-11-24 | 2017-11-24 | wind power generation speed-increasing gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207421283U true CN207421283U (en) | 2018-05-29 |
Family
ID=62304405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721587326.4U Expired - Fee Related CN207421283U (en) | 2017-11-24 | 2017-11-24 | wind power generation speed-increasing gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207421283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781397A (en) * | 2017-11-24 | 2018-03-09 | 华东交通大学 | wind power generation speed-increasing gearbox |
-
2017
- 2017-11-24 CN CN201721587326.4U patent/CN207421283U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781397A (en) * | 2017-11-24 | 2018-03-09 | 华东交通大学 | wind power generation speed-increasing gearbox |
| CN107781397B (en) * | 2017-11-24 | 2023-11-28 | 华东交通大学 | Wind power generation speed increasing gear box |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20201124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |