CN112302888B - Rotating shaft structure of wind driven generator - Google Patents
Rotating shaft structure of wind driven generator Download PDFInfo
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- CN112302888B CN112302888B CN202011104869.2A CN202011104869A CN112302888B CN 112302888 B CN112302888 B CN 112302888B CN 202011104869 A CN202011104869 A CN 202011104869A CN 112302888 B CN112302888 B CN 112302888B
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- slot
- main shaft
- shaft
- matched
- spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a rotating shaft structure of a wind driven generator, and relates to the technical field of wind driven generator accessories. The invention comprises a first main shaft and a second main shaft which are connected with each other; the first main shaft comprises a first main shaft body, a first stepped shaft A is arranged at one end of the first main shaft body, and a first stepped shaft B is arranged at the end part of the first stepped shaft; the second spindle comprises a second spindle body, one end of the second spindle body is provided with a second stepped shaft A, and the end part of the second stepped shaft A is provided with a second stepped shaft B; the other end of the first spindle body is provided with a jack which is matched and spliced with the second spindle body, and the inner side wall of the jack is provided with a slot matched with the positioning block. According to the invention, through the rotating shaft structure formed by combining the first main shaft and the second main shaft, the weight of the rotating shaft structure is reduced to a certain extent by utilizing the arrangement of the slots, the jacks and the cavities arranged on the first main shaft and the second main shaft; meanwhile, the length of the rotating shaft structure can be adjusted according to requirements through the matching of the positioning block and the slot.
Description
Technical Field
The invention belongs to the technical field of wind driven generator accessories, and particularly relates to a rotating shaft structure of a wind driven generator.
Background
The rotating shaft is an important component part used in rotating work, and is particularly seen in various large machines, for example, the rotating shaft for the wind driven generator is an important part related to the wind power generation efficiency, however, the rotating shaft for the existing wind driven generator has some larger problems in the actual use process, for example, the rotating shaft for the existing wind driven generator is mostly of a solid structure, so that the rotating shaft is too heavy, the installation of the rotating shaft is inconvenient, and a part of power is wasted in the rotating process of the device due to the fact that the weight is too large, and the power generation efficiency of the wind driven generator is reduced.
Disclosure of Invention
The invention aims to provide a rotating shaft structure of a wind driven generator, which aims to solve the problem that the rotating shaft for the wind driven generator in the market is too heavy in the prior art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a rotating shaft structure of a wind driven generator, which comprises a first main shaft and a second main shaft which are connected with each other; the first spindle comprises a first spindle body, a first stepped shaft A is arranged at one end of the first spindle body, a first stepped shaft B is arranged at the end part of the first stepped shaft, and a first key groove is formed in the first stepped shaft B; the second spindle comprises a second spindle body, one end of the second spindle body is provided with a second stepped shaft A, the end part of the second stepped shaft A is provided with a second stepped shaft B, and the second stepped shaft B is provided with a second key groove; a plurality of positioning blocks are arranged on the periphery of the other end of the second main shaft body, and two threaded blind holes are formed in the positioning blocks; the other end of the first spindle body is provided with a jack which is matched and spliced with the second spindle body, and the inner side wall of the jack is provided with a first slot, a second slot, a third slot, a fourth slot, a fifth slot and a sixth slot which are matched with the positioning block; and a threaded through hole matched with the threaded blind hole is formed in the periphery of the first main shaft body.
Furthermore, the depths of the first slot, the second slot, the third slot, the fourth slot, the fifth slot and the sixth slot are gradually increased, and the length of the positioning block is smaller than or equal to the depth of the first slot.
Further, the first slot, the second slot, the third slot, the fourth slot, the fifth slot and the sixth slot are H, 2H, 3H, 4H, 5H and 6H, respectively; the length of the positioning block is 0.5H or H.
Furthermore, the number of the first slot, the second slot, the third slot, the fourth slot, the fifth slot and the sixth slot is three, and the number of the positioning blocks is three; two threaded through holes are formed in the inner side walls of the first slot, the second slot, the third slot, the fourth slot, the fifth slot and the sixth slot, which are close to the first step shaft; and studs matched with the threaded through holes and the threaded blind holes are arranged in the threaded through holes.
Furthermore, a connecting sleeve is further arranged at the joint of the first main shaft and the second main shaft in a matching mode.
Further, the connecting sleeve comprises a mounting ring matched with the first main shaft, a pipe body is arranged on one side of the mounting ring, a flange is arranged at the end of the pipe body, a shaft sleeve capable of being sleeved on the outer side of the second main shaft body is arranged on the flange, and at least one O-shaped ring matched with the second main shaft body is arranged on the inner side wall of the shaft sleeve.
Furthermore, a plurality of first fixing through holes are formed in the end face of the first main shaft, and second fixing through holes matched with the first fixing through holes one by one are formed in the mounting ring.
Furthermore, an annular sealing groove is formed in the end face of the first spindle, and a sealing ring in sealing fit with the annular sealing groove is arranged on the mounting ring.
Further, the outer diameter of the first main shaft body is equivalent to the inner diameter of the jack; the central axes of the first main shaft and the second main shaft are collinear.
Furthermore, a cavity is formed in one end, close to the first main shaft body, of the second main shaft body, and spiral reinforcing ribs are arranged on the inner side wall of the cavity.
The invention has the following beneficial effects:
according to the invention, through the rotating shaft structure formed by combining the first main shaft and the second main shaft, the weight of the rotating shaft structure is reduced to a certain extent by utilizing the arrangement of the slots, the jacks and the cavities arranged on the first main shaft and the second main shaft; meanwhile, the length of the rotating shaft structure can be adjusted according to requirements through the matching of the positioning block and the slot.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a rotating shaft of a wind driven generator according to the present invention;
FIG. 2 is a schematic view of a spindle according to the present invention;
FIG. 3 is a schematic structural view of a second spindle according to the present invention;
FIG. 4 is a schematic structural view of two end faces of the spindle according to the present invention;
FIG. 5 is a schematic view of the connecting sleeve in a top view;
fig. 6 is a schematic view of the connecting sleeve from the bottom.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
Referring to fig. 1-6, the present invention is a wind turbine rotor structure, which includes a first main shaft 1 and a second main shaft 2 connected to each other; the first spindle 1 comprises a first spindle body 11, a first stepped shaft A12 is arranged at one end of the first spindle body 11, a first stepped shaft B13 is arranged at the end of the first stepped shaft 12, and a first key groove 14 is arranged on the first stepped shaft B13; the second spindle 2 comprises a second spindle body 21, one end of the second spindle body 21 is provided with a second stepped shaft A22, the end part of the second stepped shaft A22 is provided with a second stepped shaft B23, and a second key groove 24 is formed in the second stepped shaft B23; a plurality of positioning blocks 25 are arranged on the periphery of the other end of the second main shaft body 21, and two threaded blind holes 26 are formed in the positioning blocks 25; the other end of the first spindle body 11 is provided with a jack 10 which is matched and spliced with the second spindle body 21, and the inner side wall of the jack 10 is provided with a first slot 101, a second slot 102, a third slot 103, a fourth slot 104, a fifth slot 105 and a sixth slot 106 which are matched with the positioning block 25; the periphery of the first main shaft body 11 is provided with a threaded through hole 17 matched with the threaded blind hole 26.
Preferably, the depths of the first slot 101, the second slot 102, the third slot 103, the fourth slot 104, the fifth slot 105 and the sixth slot 106 are gradually increased, and the length of the positioning block 25 is less than or equal to the depth of the first slot 101.
Preferably, the first slot 101, the second slot 102, the third slot 103, the fourth slot 104, the fifth slot 105 and the sixth slot 106 are H, 2H, 3H, 4H, 5H, 6H, respectively; the length of positioning block 25 is 0.5H or H.
Preferably, the number of the first slot 101, the second slot 102, the third slot 103, the fourth slot 104, the fifth slot 105 and the sixth slot 106 is three, and the number of the positioning blocks 25 is three; two threaded through holes 17 are formed in the inner side walls of the first slot 101, the second slot 102, the third slot 103, the fourth slot 104, the fifth slot 105 and the sixth slot 106, which are close to one side of the first stepped shaft 12; and studs matched with the threaded through holes 17 and the threaded blind holes 26 are arranged in the threaded through holes 17.
Preferably, a connecting sleeve 3 is further arranged at the joint of the main shaft I1 and the main shaft II 2 in a matching manner.
Preferably, the connecting sleeve 3 comprises a mounting ring 31 matched with the first main shaft 1, a pipe body 33 is arranged on one side of the mounting ring 31, a flange 34 is arranged at the end part of the pipe body 33, a shaft sleeve 35 capable of being sleeved on the outer side of the second main shaft body 21 is arranged on the flange 34, and at least one O-ring 36 matched with the second main shaft body 21 is arranged on the inner side wall of the shaft sleeve 35.
Preferably, a plurality of first fixing through holes 16 are formed in the end face of the first main shaft 1, and second fixing through holes 32 matched with the first fixing through holes 16 one by one are formed in the mounting ring 31.
Preferably, an annular sealing groove 15 is formed in the end face of the primary shaft 1, and a sealing ring 37 in sealing fit with the annular sealing groove 15 is arranged on the mounting ring 31.
Preferably, the outer diameter of the first main shaft body 11 is equivalent to the inner diameter of the insertion hole 10; the central axes of the first main shaft 1 and the second main shaft 2 are collinear.
Preferably, a cavity is arranged at one end of the second main shaft body 21 close to the first main shaft body 11, and a spiral reinforcing rib is arranged on the inner side wall of the cavity.
When the spindle is used, the positioning block 25 is selected to be matched and inserted into the first slot 101, the second slot 102, the third slot 103, the fourth slot 104, the fifth slot 105 or the sixth slot 106 according to the required length of the spindle structure, and after the positioning block is inserted, the stud arranged in the threaded through hole 17 is rotated to be screwed into the threaded blind hole 26 along the length direction of the threaded through hole 17, so that the first spindle 1 and the second spindle 2 are fixedly connected;
meanwhile, before the main shaft I1 and the main shaft II 2 are connected, a connecting sleeve 3 is sleeved on a main shaft body II 21 of the main shaft II 2,
after the first main shaft 1 and the second main shaft 2 are fixedly connected, the mounting ring 31 is buckled on the end face of the first main shaft 1 and penetrates through the second fixing through hole 32 and the first fixing through hole 16 through bolts to be connected.
Through the arrangement of the annular sealing groove 15, the sealing ring 37 and the O-shaped ring 36, the connection position of the first main shaft 1 and the second main shaft 2 is ensured to be in a sealing state.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A wind-driven generator rotating shaft structure is characterized in that:
the device comprises a first main shaft (1) and a second main shaft (2) which are connected with each other;
the first spindle (1) comprises a first spindle body (11), a first stepped shaft A (12) is arranged at one end of the first spindle body (11), a first stepped shaft B (13) is arranged at the end part of the first stepped shaft (12), and a first key groove (14) is formed in the first stepped shaft B (13);
the second spindle (2) comprises a second spindle body (21), one end of the second spindle body (21) is provided with a second stepped shaft A (22), the end part of the second stepped shaft A (22) is provided with a second stepped shaft B (23), and the second stepped shaft B (23) is provided with a second key groove (24); a plurality of positioning blocks (25) are arranged on the periphery of the other end of the second main shaft body (21), and two threaded blind holes (26) are formed in the positioning blocks (25);
the other end of the first spindle body (11) is provided with a jack (10) which is matched and spliced with the second spindle body (21), and the inner side wall of the jack (10) is provided with a first slot (101), a second slot (102), a third slot (103), a fourth slot (104), a fifth slot (105) and a sixth slot (106) which are matched with the positioning block (25);
a threaded through hole (17) matched with the threaded blind hole (26) is formed in the peripheral side of the first main shaft body (11);
the depths of the first slot (101), the second slot (102), the third slot (103), the fourth slot (104), the fifth slot (105) and the sixth slot (106) are gradually increased, and the length of the positioning block (25) is less than or equal to the depth of the first slot (101);
a connecting sleeve (3) is further arranged at the connecting position of the first main shaft (1) and the second main shaft (2) in a matched manner;
the connecting sleeve (3) comprises a mounting ring (31) matched with the first main shaft (1), a pipe body (33) is arranged on one side of the mounting ring (31), a flanging (34) is arranged at the end part of the pipe body (33), a shaft sleeve (35) capable of being sleeved on the outer side of the second main shaft body (21) is arranged on the flanging (34), and at least one O-shaped ring (36) matched with the second main shaft body (21) is arranged on the inner side wall of the shaft sleeve (35);
a plurality of first fixing through holes (16) are formed in the end face of the first main shaft (1), and second fixing through holes (32) matched with the first fixing through holes (16) one by one are formed in the mounting ring (31);
an annular sealing groove (15) is formed in the end face of the first main shaft (1), and a sealing ring (37) in sealing fit with the annular sealing groove (15) is arranged on the mounting ring (31).
2. The wind turbine rotating shaft structure according to claim 1, wherein the first slot (101), the second slot (102), the third slot (103), the fourth slot (104), the fifth slot (105) and the sixth slot (106) are respectively H, 2H, 3H, 4H, 5H and 6H;
the length of the positioning block (25) is 0.5H or H.
3. The wind turbine rotating shaft structure according to claim 1 or 2, wherein the number of the first slot (101), the second slot (102), the third slot (103), the fourth slot (104), the fifth slot (105) and the sixth slot (106) is three, and the number of the positioning blocks (25) is three;
two threaded through holes (17) are formed in the inner side walls of the first slot (101), the second slot (102), the third slot (103), the fourth slot (104), the fifth slot (105) and the sixth slot (106) close to one side of the first stepped shaft (12);
and studs matched with the threaded through holes (17) and the threaded blind holes (26) are arranged in the threaded through holes (17).
4. A wind power generator shaft structure according to claim 1, wherein the outer diameter of the first main shaft body (11) is equivalent to the inner diameter of the insertion hole (10); the central axes of the first main shaft (1) and the second main shaft (2) are collinear.
5. The wind power generator rotating shaft structure according to claim 1 or 4, wherein a cavity is arranged at one end of the second main shaft body (21) close to the first main shaft body (11), and a spiral reinforcing rib is arranged on the inner side wall of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104869.2A CN112302888B (en) | 2020-10-15 | 2020-10-15 | Rotating shaft structure of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104869.2A CN112302888B (en) | 2020-10-15 | 2020-10-15 | Rotating shaft structure of wind driven generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112302888A CN112302888A (en) | 2021-02-02 |
| CN112302888B true CN112302888B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011104869.2A Active CN112302888B (en) | 2020-10-15 | 2020-10-15 | Rotating shaft structure of wind driven generator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334062A (en) * | 2007-06-26 | 2008-12-31 | 上海电气风电设备有限公司 | Wind-driven generator main shaft key groove |
| CN102168725A (en) * | 2011-04-15 | 2011-08-31 | 江苏新誉重工科技有限公司 | Threading tube coupler of wind generating set |
| CN201963465U (en) * | 2010-12-09 | 2011-09-07 | 厦门蓝溪科技有限公司 | Main shaft structure of double large-sized direct driven wind driven generators |
| US9784242B1 (en) * | 2013-02-03 | 2017-10-10 | Kyung N. Khim | System for extracting energy from wind and thermal gradients |
| CN209164010U (en) * | 2018-11-15 | 2019-07-26 | 南通博洋机电制造有限公司 | A kind of wind-driven generator shaft |
| CN110332079A (en) * | 2019-07-05 | 2019-10-15 | 湖南城市学院 | A kind of transmission shaft on wind power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3722601B1 (en) * | 2019-04-08 | 2021-09-01 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Wind turbine |
-
2020
- 2020-10-15 CN CN202011104869.2A patent/CN112302888B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101334062A (en) * | 2007-06-26 | 2008-12-31 | 上海电气风电设备有限公司 | Wind-driven generator main shaft key groove |
| CN201963465U (en) * | 2010-12-09 | 2011-09-07 | 厦门蓝溪科技有限公司 | Main shaft structure of double large-sized direct driven wind driven generators |
| CN102168725A (en) * | 2011-04-15 | 2011-08-31 | 江苏新誉重工科技有限公司 | Threading tube coupler of wind generating set |
| US9784242B1 (en) * | 2013-02-03 | 2017-10-10 | Kyung N. Khim | System for extracting energy from wind and thermal gradients |
| CN209164010U (en) * | 2018-11-15 | 2019-07-26 | 南通博洋机电制造有限公司 | A kind of wind-driven generator shaft |
| CN110332079A (en) * | 2019-07-05 | 2019-10-15 | 湖南城市学院 | A kind of transmission shaft on wind power plant |
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| CN112302888A (en) | 2021-02-02 |
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