CN202001208U - Variable-speed ratio wind power speed increasing box - Google Patents
Variable-speed ratio wind power speed increasing box Download PDFInfo
- Publication number
- CN202001208U CN202001208U CN 201120040863 CN201120040863U CN202001208U CN 202001208 U CN202001208 U CN 202001208U CN 201120040863 CN201120040863 CN 201120040863 CN 201120040863 U CN201120040863 U CN 201120040863U CN 202001208 U CN202001208 U CN 202001208U
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- CN
- China
- Prior art keywords
- speed
- wind power
- ratio wind
- differential
- variable
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
Abstract
The utility model relates to a variable-speed ratio wind power speed increasing box, which comprises a constant-speed ratio wind power speed increasing box and is characterized in that a last-stage output shaft of the constant-speed ratio wind power speed increasing box is connected with a first-stage planet differential speed regulating mechanism through a parallel shaft gear transmission mechanism; the first-stage planet differential speed regulating mechanism comprises a planet carrier, a speed regulating driving shaft, a speed regulating driving device and a differential planet line, wherein the differential planet line comprises an inner ring gear, a planet wheel and a sun wheel; the power/torque transmitted by the parallel shaft gear transmission mechanism is transmitted to the differential planet line by the planet carrier, and the rotate speed of the planet carrier is the input speed of the differential planet line; the sun wheel is connected with the speed regulating driving device through the speed regulating driving shaft to obtain a speed regulating rotate speed; and a constant output speed is formed by synthetizing the speed regulating rotate speed and the input rotate speed by the differential planet line and is output by the inner ring gear through the output shaft of the speed increasing box. The variable-speed ratio wind power speed increasing box is capable of changing the variable-rotate speed input of a low speed shaft into the constant-rotate speed output through the transfer of the wind power speed increasing box without a power converter of a generator. The variable-speed ratio wind power speed increasing box can be widely applied to a wind generating set for generating electricity by a synchronous generator.
Description
Technical field
The utility model relates to a kind of wind power speed-increasing gearbox, particularly about a kind of variable gear ratio wind power speed-increasing gearbox that is used for the wind power generating set of synchronous generator generating.
Background technique
At present, conventional wind power speed-increasing gearbox all is the fixed speed ratio gear-box, is applicable to become the double-fed asynchronous type of oar or partly directly drive type.The double-fed asynchronous type of speed-changing oar-changing adopts double-fed asynchronous generator, and the frequency variator of electric energy needs 1/3 rated capacity that the double-fed asynchronous generator rotor sends just is convertible into the electric energy with synchronized.Speed-changing oar-changing directly drives type and adopts magneto alternator, and the electric energy that sends need just be convertible into electric energy with synchronized with the current transformer of power capacity with generator.Therefore, how to omit current transformer and become present problem demanding prompt solution with the electric energy of synchronized with regard to obtaining.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides and a kind ofly need not the generator power current transformer, has the continuous variable speed ratio, realizes that the speed change input can stablize the variable gear ratio wind power speed-increasing gearbox that is converted to the output of constant speed synchronous speed.
For achieving the above object, the utility model is taked following technological scheme: a kind of variable gear ratio wind power speed-increasing gearbox, it comprises the fixed speed ratio wind power speed-increasing gearbox, it is characterized in that: the afterbody output shaft of described fixed speed ratio wind power speed-increasing gearbox is connected one-level planetary differential speed regulating mechanism through a parallel-axes gears driving mechanism that is made of parallel axes driving gear and parallel axes driven gear; Described planetary differential speed regulating mechanism comprises planet carrier, speed governing live axle, is arranged on the speed governing drive unit of described variable gear ratio wind power speed-increasing gearbox outside, and is arranged by the differential planetary that ring gear, planet wheel and sun gear are formed; Described planet carrier will be passed to described differential planetary row by the power/torque that described parallel-axes gears driving mechanism is passed to, and its rotating speed is described differential planetary row input speed; Described sun gear connects described speed governing drive unit by described speed governing live axle, and described speed governing drive unit drives described sun gear makes it obtain the speed governing rotating speed; Described differential planetary row is exported the constant output speed of speed governing rotating speed and input speed synthetic back formation with it by described ring gear through the speedup box output shaft.
Described planetary differential speed regulating mechanism is the driving mechanism of two-freedom.
Described planetary differential speed regulating mechanism adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio.
Described speed governing drive unit adopts variable displacement pump or the speed-adjustable motor that can export continuous variable speed driving force.
Described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
The utility model is owing to take above technological scheme, it has the following advantages: 1, the utility model is because employing is set up one-level planetary differential speed regulating mechanism behind existing fixed speed ratio wind power speed-increasing gearbox, by the planetary differential speed regulating mechanism is carried out speed regulating control, the speed ratio that can realize wind power speed-increasing gearbox changes within the specific limits, it is variable gear ratio, therefore, realize need not the generator power current transformer, just the input of lower velocity shaft variable speed can have been become fixed rotating speed output through the wind power speed-increasing gearbox transmission.2, the utility model is owing to adopt the planetary differential speed regulating mechanism to carry out speed regulating control, and is double-fed asynchronous or directly drive type with traditional speed change relatively, realized the output of motor head speed governing synchronous speed, makes that the wind-powered electricity generation unit can be stablized, speed regulating control reliably.The utility model can be widely used in the wind power generating set of synchronous generator generating.
Description of drawings
Fig. 1 is an overall structure principle schematic of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises fixed speed ratio wind power speed-increasing gearbox 1 of the prior art, it is characterized in that, the afterbody output shaft of fixed speed ratio wind power speed-increasing gearbox 1 is connected one-level planetary differential speed regulating mechanism 4 through a parallel-axes gears driving mechanism that is made of parallel axes driving gear 2 and parallel axes driven gear 3.
Planetary differential speed regulating mechanism 4 comprises planet carrier 5, speed governing live axle 6, speedup box output shaft 7, is arranged on the speed governing drive unit 8 of the utility model variable gear ratio wind power speed-increasing gearbox outside, and is arranged by the differential planetary that ring gear 9, planet wheel 10 and sun gear 11 are formed.Wherein, speed governing drive unit 8 by a speed governing actuation gear to Z
1Z
2Slow down Z
1, Z
2The number of teeth for gear mesh.Planet carrier 5 will be passed to differential planetary row by the power/torque that the parallel-axes gears driving mechanism is passed to, and its rotating speed is differential planetary row's input speed n
xSun gear 11 connects speed governing drive unit 8 by speed governing live axle 6, and speed governing drive unit 8 drives sun gear 11, makes sun gear 11 obtain to carry out the speed governing rotation speed n of speed change speed regulating control
aDifferential planetary row is with the speed governing rotation speed n
aWith input speed n
xSynthetic back forms constant output speed n
bBy ring gear 9 it is exported output speed n through speedup box output shaft 7
bCan keep constant rotational speed to equal synchronous speed.Can connect synchronous generator behind the variable gear ratio wind power speed-increasing gearbox of the present utility model, so that be adapted to adopt the needs of the wind-powered electricity generation unit of synchronous generator.
In the foregoing description, planetary differential speed regulating mechanism 4 is the driving mechanism of two-freedom.Planetary differential speed regulating mechanism 4 adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio, and the speed ratio of whole wind power speed-increasing gearbox is changed on request.
In the various embodiments described above, it is the power equipment of exportable continuous variable speeds such as variable displacement pump or speed-adjustable motor that speed governing drive unit 8 can adopt driving force, and obtains needed driving rotation speed n by speed-adjusting and control system control speed governing drive unit 8 of the prior art
t, wherein, speed-adjusting and control system is arranged on the utility model variable gear ratio wind power speed-increasing gearbox outside.Like this, the user just can obtain corresponding speed governing according to the requirement control of required variable gear ratio and drive rotation speed n
tOutput, thus realize the continuous variable gear ratio transmission in speed adjustable range (can be determined by wind-powered electricity generation unit dynamic property) requires of whole wind power speed-increasing gearbox.
In the various embodiments described above, fixed speed ratio wind power speed-increasing gearbox 1 can adopt two-stage fixed speed ratio wind power speed-increasing gearbox, also can adopt three grades of fixed speed ratio wind power speed-increasing gearboxes.
The utility model in use, the wind wheel in the wind power generating set is to fixed speed ratio wind power speed-increasing gearbox 1 input power/torque, its input speed is n
1, behind fixed speed ratio wind power speed-increasing gearbox 1 and parallel-axes gears driving mechanism, power/torque is passed to the planet carrier 5 of planetary differential speed regulating mechanism 4, and (its rotating speed is n
x), velocity ratio i then
X1=n
x/ n
1=definite value.The output speed of ring gear 9 is n
b, the speed governing rotating speed of sun gear is n
a, by the differential planetary drive characteristic as can be known: gear ratio i
BxFor:
i
bx＝n
b/n
x＝u
0/(1+u
0)+n
a/[(1+u
0)n
b]，(1)
Wherein, characteristic coefficient u
0=Z
b/ Z
aBe constant, Z
bAnd Z
aBe respectively the number of teeth of ring gear 9 and sun gear 11.If obtain constant synchronous output speed, output speed n
bAlso can be defined as the known constant value, therefore as can be known, regulate change speed governing rotation speed n by formula (1)
aCan obtain the velocity ratio i of continuous variable
BxThereby, make whole wind power speed-increasing gearbox obtain continuous variable gear ratio, resultant gear ratio is i=i
X1* i
Bx, final power/torque is by 7 outputs of speedup box output shaft.
In sum, variable gear ratio wind power speed-increasing gearbox of the present utility model provides suitable speed change and has become the continuous velocity ratio of torque, can realize the variable speed input, with the function of constant rotational speed output.Wherein, planetary differential speed regulating mechanism 4 adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio, and the speed ratio of whole wind power speed-increasing gearbox is changed on request.With lower velocity shaft through the variable speed power after the fixed speed ratio speedup box raising speed after differential speed regulation mechanism has the speed governing of continuous velocity ratio speed change, can obtain constant output speed to the synchronizing wire winding generator.Therefore, the utility model has been realized the speedup function of the tooth case continuous variable speed ratio of variable speed input constant rotational speed output, connects the constant electric energy of synchronous generator output frequency after reaching under the wind wheel speed change condition.
The various embodiments described above only are used to illustrate the utility model; the structure of each parts, size, the position is set and shape all can change to some extent; on the basis of technical solutions of the utility model; all improvement and equivalents of individual component being carried out according to the utility model principle all should not got rid of outside protection domain of the present utility model.
Claims (7)
1. variable gear ratio wind power speed-increasing gearbox, it comprises the fixed speed ratio wind power speed-increasing gearbox, it is characterized in that: the afterbody output shaft of described fixed speed ratio wind power speed-increasing gearbox is connected one-level planetary differential speed regulating mechanism through a parallel-axes gears driving mechanism that is made of parallel axes driving gear and parallel axes driven gear; Described planetary differential speed regulating mechanism comprises planet carrier, speed governing live axle, is arranged on the speed governing drive unit of described variable gear ratio wind power speed-increasing gearbox outside, and is arranged by the differential planetary that ring gear, planet wheel and sun gear are formed; Described planet carrier will be passed to described differential planetary row by the power/torque that described parallel-axes gears driving mechanism is passed to, and its rotating speed is described differential planetary row input speed; Described sun gear connects described speed governing drive unit by described speed governing live axle, and described speed governing drive unit drives described sun gear makes it obtain the speed governing rotating speed; Described differential planetary row is exported the constant output speed of speed governing rotating speed and input speed synthetic back formation with it by described ring gear through the speedup box output shaft.
2. variable gear ratio wind power speed-increasing gearbox as claimed in claim 1 is characterized in that: described planetary differential speed regulating mechanism is the driving mechanism of two-freedom.
3. variable gear ratio wind power speed-increasing gearbox as claimed in claim 1 is characterized in that: described planetary differential speed regulating mechanism adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio.
4. variable gear ratio wind power speed-increasing gearbox as claimed in claim 2 is characterized in that: described planetary differential speed regulating mechanism adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio.
5. as claim 1 or 2 or 3 or 4 described variable gear ratio wind power speed-increasing gearboxes, it is characterized in that: described speed governing drive unit adopts variable displacement pump or the speed-adjustable motor that can export continuous variable speed driving force.
6. as claim 1 or 2 or 3 or 4 described variable gear ratio wind power speed-increasing gearboxes, it is characterized in that: described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
7. variable gear ratio wind power speed-increasing gearbox as claimed in claim 5 is characterized in that: described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120040863 CN202001208U (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120040863 CN202001208U (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001208U true CN202001208U (en) | 2011-10-05 |
Family
ID=44703951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120040863 Expired - Lifetime CN202001208U (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001208U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146892A (en) * | 2011-02-17 | 2011-08-10 | 国电联合动力技术有限公司 | Variable-speed ratio wind power speed increasing box |
| CN102654106A (en) * | 2012-05-14 | 2012-09-05 | 沈阳华创风能有限公司 | Variable-ratio speed regulation device |
| CN102852726A (en) * | 2012-08-29 | 2013-01-02 | 华北电力大学 | Gird-connected wind power generation system with self-adaptive speed regulation composite transmission based on differential mechanism |
| CN103115118A (en) * | 2013-02-05 | 2013-05-22 | 胡贻勃 | Drive speed increasing gear of coaxial inner conductor two-planetary gear train |
-
2011
- 2011-02-17 CN CN 201120040863 patent/CN202001208U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146892A (en) * | 2011-02-17 | 2011-08-10 | 国电联合动力技术有限公司 | Variable-speed ratio wind power speed increasing box |
| CN102146892B (en) * | 2011-02-17 | 2013-03-06 | 国电联合动力技术有限公司 | Variable-speed ratio wind power speed increasing box |
| CN102654106A (en) * | 2012-05-14 | 2012-09-05 | 沈阳华创风能有限公司 | Variable-ratio speed regulation device |
| CN102654106B (en) * | 2012-05-14 | 2014-04-09 | 沈阳华创风能有限公司 | Variable-ratio speed regulation device |
| CN102852726A (en) * | 2012-08-29 | 2013-01-02 | 华北电力大学 | Gird-connected wind power generation system with self-adaptive speed regulation composite transmission based on differential mechanism |
| CN103115118A (en) * | 2013-02-05 | 2013-05-22 | 胡贻勃 | Drive speed increasing gear of coaxial inner conductor two-planetary gear train |
| CN103115118B (en) * | 2013-02-05 | 2016-04-06 | 胡贻勃 | Coaxial inner conductor double-planet train drives speed increaser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111005 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |