CN215567680U - Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation - Google Patents
Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation Download PDFInfo
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- CN215567680U CN215567680U CN202121153538.8U CN202121153538U CN215567680U CN 215567680 U CN215567680 U CN 215567680U CN 202121153538 U CN202121153538 U CN 202121153538U CN 215567680 U CN215567680 U CN 215567680U
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Abstract
A star gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation belongs to the technical field of yaw speed reducers for wind power generation. The output shaft of motor and the hole connection of speed reducer input shaft, the speed reducer input shaft is the eccentric shaft, speed reducer input shaft both ends are flange joint on bearing one and first order gear plate and the frame respectively, first order gear plate meshes with a plurality of first order external gears mutually, every first order external gear and the drive shaft connection who corresponds, every drive shaft both ends are connected with flange and frame lower flange on the frame and through bearing two respectively, frame lower flange passes through bearing three dress on the output shaft, every drive shaft is connected with eccentric cover, every second level gear plate is connected with a plurality of eccentric covers through a plurality of bearings four respectively, the central gear hole of a plurality of second level gear plates all meshes with the second level external gear mutually, the output shaft is connected with the second level external gear, the output shaft is connected with output gear. The yaw speed reducer is used for wind power generation.
Description
Technical Field
The utility model belongs to the technical field of yaw speed reducers for wind power generation, and particularly relates to a star gear plate multi-shaft combined drive small tooth difference yaw speed reducer for wind power generation.
Background
The existing yaw speed reducer mostly adopts multi-stage planetary gear transmission, and if the required large transmission ratio (i ═ 1000-. Due to the limitation of space size, the load borne by the multi-stage planetary gear transmission is limited, so that the service life of the yaw speed reducer applied at present is low.
In order to reduce the axial size and improve the bearing capacity of the output end, some documents propose to use small tooth difference transmission with different levels and tooth shapes, and solve the problems to a certain extent. Such as:
denghao, Guipeng yaw speed reducer for wind power generation, China, 2649870Y [ P ]. 2004-10-20;
liujin Fan, Xiaoyao, Wanyi Shi, Huangyi, Tan Zheng Ji, China, 201908997U P.2011-07-27;
the speed reducer for yaw driving device of wind driven generator is Chinese 101839213A P2010-09-22;
the island Cheng, Mine Bank Qing times, speed reducer for wind power generation equipment and yaw driving device for wind power generation equipment, China, 102454545A [ P ]. 2012-05-16;
mine Bank cleaning, blowing original Shengsi, yaw speed reducer and yaw drive system used in yaw drive system of wind power generation equipment, China, 102966490A [ P ]. 2013-03-13;
Wu-Zhenzhuo-wind power permanent-magnet yaw-pitch hypocycloid reduction box, China, 103061997A [ P ]. 2013-04-24;
Wu-Zhenzhuo-wind power generation permanent magnet yaw-pitch cycloid reduction box, China, 103066747A [ P ]. 2013-04-24;
Wu-Zhenzhuo-wind power generation permanent magnet yaw-pitch hypocycloid reduction box, China, 103062002A [ P ]. 2013-04-24;
Wu-Zhenzhuo-wind power permanent braking permanent magnet yaw-pitch cycloid reduction box, China, 103244362A [ P ]. 2013-08-14;
lijie, a yaw speed reducer for wind power generation with large torque, China, 111219454A [ P ] 2020-06-02.
Under the condition of ensuring a large transmission ratio, the utility model provides a multi-shaft driving star-type gear plate small tooth difference yaw speed reducer for wind power generation, in order to further reduce the axial size of the speed reducer and transmit larger torque.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-shaft driving star-type gear plate small-tooth-difference yaw speed reducer for wind power generation, which has a unique structure, small axial size, large transmission ratio and large transmission torque.
The utility model fully utilizes the bearing advantage of multi-shaft combined drive of the star gear plates, the first-stage transmission uses a small-tooth-difference multi-shaft drive mode that a plurality of inner gear holes uniformly distributed in the circumferential direction of the star gear plates drive a plurality of first-stage external gears, the second-stage transmission uses a multi-shaft drive mode that a plurality of second-stage gear plates drive a plurality of second-stage external gears, and the small-tooth-difference drive mode of the second-stage external gears is driven through the central gear holes of the second-stage gear plates. The above scheme can greatly reduce the axial size of the speed reducer and realize the large load transmission of the output end.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation comprises a speed reducer input shaft, a rack upper flange, a rack lower flange, an output shaft, an output gear, a plurality of drive shafts, a plurality of eccentric sleeves and a two-stage small-tooth-difference transmission mechanism; the two-stage small tooth difference transmission mechanism is a first-stage small tooth difference transmission mechanism and a second-stage small tooth difference transmission mechanism respectively; the first-stage transmission mechanism with less tooth difference comprises a first-stage gear plate and a plurality of first-stage external gears, and the second-stage transmission mechanism with less tooth difference comprises a second-stage external gear and a plurality of second-stage gear plates;
the output shaft of motor and the hole connection of speed reducer input shaft, the speed reducer input shaft is the eccentric shaft, and the speed reducer input shaft both ends are flange joint on bearing one and first order gear plate and the frame respectively, first order gear plate meshes with a plurality of first order external gears mutually, every first order external gear and the drive shaft connection who corresponds, every the drive shaft both ends are connected with frame upper flange and frame lower flange through bearing two respectively, the frame lower flange passes through bearing three and adorns on the output shaft, and every drive shaft is connected with eccentric cover, every second stage gear plate is connected with a plurality of eccentric covers through a plurality of bearings four respectively, and the central gear hole of a plurality of second stage gear plates all meshes with the second stage external gear mutually, the output shaft is connected with the second stage, and the output shaft is connected with output gear.
Compared with the prior art, the utility model has the beneficial effects that:
1. the structure is unique and innovative: the utility model uses the gear plate multi-shaft combination to drive the transmission with small tooth difference. The first stage utilizes the structural advantage that a plurality of internal gear holes of the star gear plate are meshed with a plurality of first stage external gears to realize multi-shaft driving. The second stage utilizes the bearing advantages of the meshing of a plurality of gear plate central gear holes and the second stage external gear to realize the aims of reducing the axial size, improving the bearing capacity of the output end and realizing large transmission ratio (i is 1000-.
2. Under the same space size and the required transmission ratio, can realize bigger moment of torsion transmission, show the life who improves the speed reducer.
Drawings
FIG. 1 is a main sectional view of a star gear plate multi-shaft combination driven small tooth difference yaw speed reducer for wind power generation according to the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a partially enlarged view of a portion a of fig. 1.
The names and reference numbers of the components referred to in the above figures are as follows:
the gear reducer comprises a speed reducer input shaft 1, a first-stage gear plate 2, a first-stage external gear 3, a driving shaft 4, a rack upper flange 5, an eccentric sleeve 6, a second-stage gear plate 7, a second-stage external gear 8, a rack lower flange 9, an output shaft 10, an output gear 11, a lower end cover 12, an output flange 13, a connecting shell 14, an input end shell 15 and a speed reducer upper end cover 16.
Detailed Description
The first embodiment is as follows: as shown in fig. 1 to 3, the present embodiment discloses a star gear plate multi-shaft combination driven small tooth difference yaw speed reducer for wind power generation, which comprises a speed reducer input shaft 1, a frame upper flange 5, a frame lower flange 9, an output shaft 10, an output gear 11, a plurality of drive shafts 4, a plurality of eccentric sleeves 6 and a two-stage small tooth difference transmission mechanism; the two-stage small tooth difference transmission mechanism is a first-stage small tooth difference transmission mechanism and a second-stage small tooth difference transmission mechanism respectively; the first-stage transmission mechanism with less tooth difference comprises a first-stage gear plate 2 and a plurality of first-stage external gears 3, and the second-stage transmission mechanism with less tooth difference comprises a second-stage external gear 8 and a plurality of second-stage gear plates 7;
the output shaft of motor 17 is connected with the hole (through the parallel key one) of speed reducer input shaft 1, speed reducer input shaft 1 is the eccentric shaft, and 1 both ends of speed reducer input shaft are connected with flange 5 on first order gear board 2 and the frame through bearing one respectively, first order gear board 2 meshes with a plurality of first order external gears 3 mutually (the equipartition is equipped with a plurality of internal gear hole one on the first order gear board 2, a plurality of internal gear hole one mesh with a plurality of first order external gears 3 mutually, every first order external gear 3 is connected with corresponding drive shaft 4 (through the parallel key two), every 4 both ends of drive shaft are connected with flange 5 on the frame and flange 9 under the frame through bearing two respectively, flange 9 is adorned on output shaft 10 through bearing three under the frame, every drive shaft 4 (through the parallel key three) is connected with eccentric cover 6, every second order gear board 7 is connected with a plurality of eccentric covers 6 through a plurality of bearings four respectively (all on every second order gear board 7) A plurality of inner holes are distributed, a plurality of inner holes of each second-stage gear plate 7 are respectively connected with a plurality of eccentric sleeves 6 through a bearing four, central gear holes of the second-stage gear plates 7 are meshed with second-stage external gears 8, an output shaft 10 is connected with the second-stage external gears 8 (through a flat key four), and the output shaft 10 is connected with an output gear 11 (through a flat key five). The number of the first-stage external gears 3 is 3-5. The number of the second-stage gear plates 7 is 2-5.
A connecting shell 14 is arranged on the outer side of the second-stage gear plates 7, the connecting shell 14 is arranged between the upper frame flange 5 and the lower frame flange 9, an output flange 13 is arranged on the output shaft 10 through a bearing five and is positioned at the lower part of the lower frame flange 9, a lower end cover 12 is arranged between the output flange 13 and the output gear 11, an upper speed reducer end cover 16 is arranged on the upper part of the first-stage gear plate 2, and an input end shell 15 is arranged on the outer side of the first-stage gear plate 2; the speed reducer upper end cover 16 and the input end shell 15 can be detachably and fixedly connected through a plurality of screws I, the input end shell 15, the frame upper flange 5 and the connecting shell 14 can be detachably and fixedly connected through a plurality of screws II, the connecting shell 14, the frame lower flange 9 and the output flange 13 can be detachably and fixedly connected through a plurality of screws III, the output flange 13 and the lower end cover 12 can be detachably and fixedly connected through a plurality of screws IV, and the motor 17 is fixed on the speed reducer upper end cover 16.
The working principle is as follows:
the star-type gear plate multi-shaft combined driving small tooth difference yaw speed reducer for wind power generation comprises a two-stage small tooth difference transmission mechanism, power is input through a speed reducer input shaft 1, the speed reducer input shaft 1 is an eccentric shaft, the speed reducer input shaft 1 drives a first-stage gear plate 2 to move in a translation mode, the first-stage gear plate 2 drives a first-stage external gear 3 to rotate in a fixed shaft mode, and the number of the first-stage external gears 3 is 3-5. The first-stage external gear 3 drives a plurality of driving shafts 4 connected with the first-stage external gear to rotate together, and two ends of each driving shaft 4 are supported by the upper flange 5 of the rack and the lower flange 9 of the rack together. The driving shaft 4 is connected with the eccentric sleeve 6 through a third flat key to drive the second-stage gear plates 7 to move horizontally, and the number of the second-stage gear plates 7 is 2-5. The second-stage gear plate 7 drives the second-stage external gear 8 to rotate on a fixed shaft, the second-stage external gear 8 is connected with an output shaft 10 through a flat key, a detachable output gear 11 is mounted on the output shaft 10, and power is output through the output gear 11.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (4)
1. The utility model provides a few poor driftage speed reducer of tooth of star gear plate multiaxis combined drive for wind power generation which characterized in that: the gear reducer comprises a speed reducer input shaft (1), a rack upper flange (5), a rack lower flange (9), an output shaft (10), an output gear (11), a plurality of driving shafts (4), a plurality of eccentric sleeves (6) and a two-stage small-tooth-difference transmission mechanism; the two-stage small tooth difference transmission mechanism is a first-stage small tooth difference transmission mechanism and a second-stage small tooth difference transmission mechanism respectively; the first-stage transmission mechanism with small tooth difference comprises a first-stage gear plate (2) and a plurality of first-stage external gears (3), and the second-stage transmission mechanism with small tooth difference comprises a second-stage external gear (8) and a plurality of second-stage gear plates (7);
an output shaft of a motor (17) is connected with an inner hole of a speed reducer input shaft (1), the speed reducer input shaft (1) is an eccentric shaft, two ends of the speed reducer input shaft (1) are respectively connected with a first-stage gear plate (2) and a rack upper flange (5) through a first bearing, the first-stage gear plate (2) is meshed with a plurality of first-stage external gears (3), each first-stage external gear (3) is connected with a corresponding driving shaft (4), two ends of each driving shaft (4) are respectively connected with a rack upper flange (5) and a rack lower flange (9) through a second bearing, the rack lower flange (9) is arranged on an output shaft (10) through a third bearing, each driving shaft (4) is connected with an eccentric sleeve (6), each second-stage gear plate (7) is respectively connected with a plurality of eccentric sleeves (6) through a plurality of fourth bearings, central gear holes of the plurality of second-stage gear plates (7) are all meshed with second-stage external gears (8), the output shaft (10) is connected with the second-stage external gear (8), and the output shaft (10) is connected with the output gear (11).
2. The wind power generation star gear plate multi-shaft combined drive small tooth difference yaw speed reducer according to claim 1, characterized in that: a connecting shell (14) is arranged on the outer side of each second-stage gear plate (7), the connecting shell (14) is arranged between the upper flange (5) of the rack and the lower flange (9) of the rack, an output flange (13) is arranged on an output shaft (10) through a bearing and is positioned on the lower portion of the lower flange (9) of the rack, a lower end cover (12) is arranged between the output flange (13) and the output gear (11), an upper end cover (16) of a speed reducer is arranged on the upper portion of the first-stage gear plate (2), and an input end shell (15) is arranged on the outer side of the first-stage gear plate (2); the speed reducer is characterized in that an upper end cover (16) of the speed reducer is fixedly connected with an input end shell (15) in a detachable mode, the input end shell (15) is fixedly connected with an upper frame flange (5) and a connecting shell (14) in a detachable mode, the connecting shell (14) is fixedly connected with a lower frame flange (9) and an output flange (13) in a detachable mode, the output flange (13) is fixedly connected with a lower end cover (12) in a detachable mode, and a motor (17) is fixed to the upper end cover (16) of the speed reducer.
3. The wind power generation star gear plate multi-shaft combined drive small tooth difference yaw speed reducer according to claim 1, characterized in that: the number of the first-stage external gears (3) is 3-5.
4. The wind power generation star gear plate multi-shaft combined drive small tooth difference yaw speed reducer according to claim 1, 2 or 3, characterized in that: the number of the second-stage gear plates (7) is 2-5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121153538.8U CN215567680U (en) | 2021-05-26 | 2021-05-26 | Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation |
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| CN202121153538.8U CN215567680U (en) | 2021-05-26 | 2021-05-26 | Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175502A (en) * | 2021-05-26 | 2021-07-27 | 陈明 | Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175502A (en) * | 2021-05-26 | 2021-07-27 | 陈明 | Star-type gear plate multi-shaft combined drive small-tooth-difference yaw speed reducer for wind power generation |
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