CN214063689U - High-power wind power gear box - Google Patents
High-power wind power gear box Download PDFInfo
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- CN214063689U CN214063689U CN202022407156.5U CN202022407156U CN214063689U CN 214063689 U CN214063689 U CN 214063689U CN 202022407156 U CN202022407156 U CN 202022407156U CN 214063689 U CN214063689 U CN 214063689U
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Abstract
The utility model discloses a high-power wind power gear box, which comprises a connecting flange, a primary planetary system, an intermediate shaft gear and an output shaft gear train; one end of the connecting flange is used for being fixedly connected with an elastic coupling of the fan, and the other end of the connecting flange is fixedly connected with a primary planet carrier of the primary planet system through bolts; the first-stage planetary system comprises a first-stage planetary frame, a first-stage planetary gear and a first-stage sun gear; a first-stage planet gear is fixed on the first-stage planet carrier and drives the first-stage planet gear to rotate around the center of the first-stage planet carrier, the first-stage planet gear is meshed with a first-stage sun gear, and the central shaft of the first-stage sun gear is fixedly connected with the center of a middle-stage planet carrier of a middle-stage planetary system; the central shaft of the middle-stage sun gear of the middle-stage planet carrier is fixedly connected with the intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train.
Description
Technical Field
The utility model belongs to the field of machinery, concretely relates to high-power wind-powered electricity generation gear box.
Background
In the prior art, the connection between the large-megawatt wind power gear box and the main shaft generally adopts a rigid connection mode of a locking disc or a flange disc, the torque arm of the gear box adopts an elastic support structure, and the impact load is transmitted into the gear box to challenge the service life and reliability of gears and bearings because the rigid connection can not absorb the impact load of a wind wheel.
And the large megawatt wind power gear box adopts a two-stage transmission structure form, the gear box has low speed ratio, the rotating speed of the generator is low, and the cost control of the generator is not facilitated.
Therefore, it is necessary to develop a flexible connection for the elastic coupling at the input end, solve the adverse effect of impact load on the gear box, realize high speed ratio by adopting multi-stage transmission, and reduce the cost of the generator.
Disclosure of Invention
The utility model provides a high-power wind-powered electricity generation gear box absorbs fan impact load, arranges high drive ratio structural style, improves the reliability of gear box, reduces whole quick-witted cost.
The utility model discloses a high-power wind power gear box, which comprises a connecting flange, a primary planetary system, an intermediate shaft gear and an output shaft gear train;
one end of the connecting flange is used for being fixedly connected with an elastic coupling of the fan, and the other end of the connecting flange is fixedly connected with a primary planet carrier of a primary planet system through bolts;
the primary planetary system comprises a primary planet carrier, a primary planet gear, a primary gear ring and a primary sun gear; a first-stage planet gear is fixed on the first-stage planet carrier and drives the first-stage planet gear to rotate around the center of the first-stage planet carrier, the first-stage planet gear is meshed with a first-stage sun gear, and the central shaft of the first-stage sun gear is fixedly connected with the center of a middle-stage planet carrier of a middle-stage planetary system; the primary gear ring is sleeved on the periphery of the primary planet gear;
the central shaft of the middle-stage sun gear of the middle-stage planet carrier is fixedly connected with the intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train.
Further, the intermediate stage planetary system comprises a secondary planetary system and a tertiary planetary system;
the secondary planetary system comprises a secondary planet carrier, a secondary planet gear, a secondary gear ring and a secondary sun gear;
the three-stage planetary system comprises a three-stage planetary frame, a three-stage planetary gear, a three-stage gear ring and a three-stage sun gear;
the central shaft of the first-stage sun gear is fixedly connected with the center of the second-stage planet carrier; a second-stage planet gear is fixed on the second-stage planet carrier and drives the second-stage planet gear to rotate around the center of the second-stage planet carrier, the second-stage planet gear is meshed with a second-stage sun gear, and a central shaft of the second-stage sun gear is fixedly connected with a third-stage planet carrier; the secondary gear ring is sleeved on the periphery of the secondary planet gear;
a third-stage planetary gear is fixed on the third-stage planetary carrier and drives the third-stage planetary gear to rotate around the center of the third-stage planetary carrier, the third-stage planetary gear is meshed with a third-stage sun gear, and a central shaft of the third-stage sun gear is fixedly connected with an intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train; and the three-stage gear ring is sleeved on the periphery of the three-stage planetary gear.
Furthermore, the central shaft of the primary sun gear is fixedly connected with the center of the secondary planet carrier through a spline; and the central shaft of the second-stage sun gear is fixedly connected with the third-stage planet carrier through a spline.
Furthermore, the connecting flange and the inner ring of the elastic coupling are integrated and are connected with the outer ring of the coupling through the elastic body.
Further, a torsion arm is fixedly arranged outside the high-power wind power gear box and is used for being rigidly connected to the rack through bolts.
The utility model discloses beneficial technological effect does: the input end is flexibly connected through an elastic coupling, and the torque arm is rigidly connected to the rack, so that the adverse effect of impact load on the high-power wind power gear box is avoided. Meanwhile, a four-stage transmission structure of a three-stage planetary structure and a one-stage parallel output shaft gear train is adopted, the speed ratio can reach more than 200, and the cost of the generator is reduced.
Drawings
FIG. 1 is a schematic view of an input flange connection;
FIG. 2 is a schematic view of a torsion arm arrangement;
FIG. 3 is a schematic view of an input flange configuration;
FIG. 4 is a schematic diagram of a transmission structure of a high-power wind power gear box.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses a high-power wind-powered electricity generation gear box, including flange 5, one-level planetary system, intermediate shaft gear 4 and output shaft train 9.
One end of the connecting flange 5 and the inner ring 51 of the elastic coupling are integrated and are connected with the outer ring of the coupling through an elastic body; the absorption capacity to impact load is realized;
the other end of the connecting flange 5 is fixedly connected with a primary planet carrier of the primary planetary system in a nesting mode through uniformly distributed arrangement bolts 6 and pins 7 in the circumferential direction; the pin 7 transmits torque, and the bolt 6 transmits axial force to play a role in compression;
the primary planetary system comprises a primary planet carrier 11, a primary planet gear 12, a primary gear ring 13 and a primary sun gear 14; a primary planet gear is fixed on the primary planet carrier and drives the primary planet gear to rotate around the center of the primary planet carrier, and the primary planet gear is meshed with the primary sun gear; the primary gear ring 13 is sleeved on the periphery of the primary planet gear 12;
the central shaft of the middle-stage sun gear of the middle-stage planet carrier is fixedly connected with the intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train.
The intermediate stage planetary system comprises a secondary planetary system and a tertiary planetary system;
the secondary planetary system comprises a secondary planet carrier 21, a secondary planet gear 22, a secondary gear ring 23 and a secondary sun gear 24;
the third-stage planetary system comprises a third-stage planet carrier 31, a third-stage planet gear 32, a third-stage gear ring 33 and a third-stage sun gear 34;
the central shaft of the first-stage sun gear is fixedly connected with the center of the second-stage planet carrier through a spline; the second-stage planet gear 22 is fixed on the second-stage planet carrier 21 and drives the second-stage planet gear 22 to rotate around the center of the second-stage planet carrier, the second-stage planet gear 22 is meshed with the second-stage sun gear 24, and the central shaft of the second-stage sun gear is fixedly connected with the third-stage planet carrier 31 through a spline; the secondary gear ring 23 is sleeved on the periphery of the secondary planet gear 22;
a third-stage planetary gear 32 is fixed on the third-stage planetary carrier 31 and drives the third-stage planetary gear to rotate around the center of the third-stage planetary carrier, the third-stage planetary gear is meshed with a third-stage sun gear, and a central shaft of the third-stage sun gear is fixedly connected with an intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train; the third-stage ring gear 33 is externally sleeved on the periphery of the third-stage planetary gear 32.
A torsion arm 8 is fixedly arranged outside the high-power wind power gear box and is rigidly connected to the rack through a bolt 6. The high-power wind power gear box is fixed.
The high-power wind power gear box adopts a structure that a three-stage planetary gear train is additionally provided with a one-stage parallel output shaft gear train, and the speed ratio can reach more than 200. The elastic coupling and the primary planet carrier are fixed together by the connecting flange to be used as power input, and the power is transmitted to the output shaft through the transmission of the three-stage planetary gear train and the primary parallel output shaft gear train. The impact load of the fan is absorbed, the high transmission ratio is realized, the reliability of the high-power wind power gear box is improved, and the cost of the whole machine is reduced.
Claims (5)
1. The utility model provides a high-power wind-powered electricity generation gear box which characterized in that: comprises a connecting flange (5), a primary planetary system, an intermediate shaft gear (4) and an output shaft gear train (9);
one end of the connecting flange (5) is fixedly connected with an elastic coupling of the fan, and the other end of the connecting flange is fixedly connected with a primary planet carrier (11) of a primary planet system through a bolt (6);
the primary planetary system comprises a primary planetary frame (11), a primary planetary gear (12), a primary gear ring (13) and a primary sun gear (14); a primary planet gear (12) is fixed on the primary planet carrier (11) and drives the primary planet gear to rotate around the center of the primary planet carrier, the primary planet gear is meshed with a primary sun gear, and the central shaft of the primary sun gear is fixedly connected with the center of a middle planet carrier of a middle planet system; the primary gear ring (13) is sleeved on the periphery of the primary planetary gear (12);
the central shaft of the middle-stage sun gear of the middle-stage planet carrier is fixedly connected with the intermediate shaft gear; the intermediate shaft gear is meshed with the output shaft gear train.
2. The high power wind power gearbox as set forth in claim 1, wherein: the intermediate stage planetary system comprises a secondary planetary system and a tertiary planetary system;
the secondary planetary system comprises a secondary planetary frame (21), a secondary planetary gear (22), a secondary gear ring (23) and a secondary sun gear (24);
the three-stage planetary system comprises a three-stage planetary carrier (31), a three-stage planetary gear (32), a three-stage gear ring (33) and a three-stage sun gear (34);
the central shaft of the first-stage sun gear is fixedly connected with the center of the second-stage planet carrier; a secondary planet gear (22) is fixed on the secondary planet carrier (21) and drives the secondary planet gear to rotate around the center of the secondary planet carrier, the secondary planet gear (22) is meshed with a secondary sun gear (24), and the central shaft of the secondary sun gear is fixedly connected with a third planet carrier (31); the secondary gear ring (23) is sleeved on the periphery of the secondary planetary gear (22);
a third-stage planetary gear (32) is fixed on the third-stage planetary carrier and drives the third-stage planetary gear to rotate around the center of the third-stage planetary carrier (31), the third-stage planetary gear (32) is meshed with a third-stage sun gear (34), and a central shaft of the third-stage sun gear is fixedly connected with a middle shaft gear; the intermediate shaft gear is meshed with the output shaft gear train; and the three-stage gear ring is sleeved on the periphery of the three-stage planetary gear.
3. The high power wind power gearbox as set forth in claim 2, wherein: the central shaft of the first-stage sun gear is fixedly connected with the center of the second-stage planet carrier through a spline; and the central shaft of the second-stage sun gear is fixedly connected with the third-stage planet carrier through a spline.
4. The high power wind power gearbox as set forth in claim 3, wherein: the connecting flange and the inner ring (51) of the elastic coupling are integrated and are connected with the outer ring of the coupling through an elastic body.
5. The high power wind power gearbox as set forth in claim 4, wherein: a torsion arm (8) is fixedly arranged outside the high-power wind power gear box and is used for being rigidly connected to the rack through a bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022407156.5U CN214063689U (en) | 2020-10-26 | 2020-10-26 | High-power wind power gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022407156.5U CN214063689U (en) | 2020-10-26 | 2020-10-26 | High-power wind power gear box |
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| Publication Number | Publication Date |
|---|---|
| CN214063689U true CN214063689U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022407156.5U Active CN214063689U (en) | 2020-10-26 | 2020-10-26 | High-power wind power gear box |
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| CN (1) | CN214063689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253698A (en) * | 2020-10-26 | 2021-01-22 | 重庆望江工业有限公司 | High-power wind power gear box |
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2020
- 2020-10-26 CN CN202022407156.5U patent/CN214063689U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112253698A (en) * | 2020-10-26 | 2021-01-22 | 重庆望江工业有限公司 | High-power wind power gear box |
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