CN214591076U - Totally enclosed horizontal shaft dual drive power generation facility - Google Patents
Totally enclosed horizontal shaft dual drive power generation facility Download PDFInfo
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- CN214591076U CN214591076U CN202121168613.8U CN202121168613U CN214591076U CN 214591076 U CN214591076 U CN 214591076U CN 202121168613 U CN202121168613 U CN 202121168613U CN 214591076 U CN214591076 U CN 214591076U
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Abstract
The utility model discloses a totally enclosed horizontal axis dual-drive power generation device, the shell comprises a shell body, a first end cover and a second end cover which are fixed at two ends, the inner side surface of the first end cover is provided with a first bearing, and the inner side surface of the second end cover is provided with a second bearing; the outer rotor comprises an outer rotor shell, a first outer rotor end cover and a second outer rotor end cover, wherein the first outer rotor end cover and the second outer rotor end cover are arranged at two ends of the outer rotor shell; the inner end of the inner rotor shaft is rotatably arranged in the third bearing, and the outer end of the inner rotor shaft sequentially penetrates through the fourth bearing and the second bearing and extends out of the second end cover; the outer rotor shaft penetrates through the first bearing and extends out of the first end cover. The utility model discloses, only there is one fit clearance in the cooperation department with external rotor shaft and inner rotor shaft on the first end cover of shell and the second end cover, has improved sealing performance, avoids the dust to get into, has prolonged life.
Description
Technical Field
The utility model relates to a wind power generation set technical field, concretely relates to totally enclosed horizontal axis dual drive power generation facility.
Background
The power generation device is used for converting mechanical energy into electric energy and is widely applied to the fields of wind power, water power and the like. As is well known, the power generating device usually works in a severe environment, for example, the wind power generating device and the hydraulic power generating device are usually directly arranged in an outdoor environment, so how to effectively protect the parts of the power generating device and prevent the invasion of external dust, rainwater and the like, and especially, the protection of easily worn parts such as bearings and the like is important.
In order to improve the power generation efficiency, a plurality of prior arts adopt a dual-drive mode, and the inner rotor and the outer rotor are driven by a driving mechanism respectively to generate relative rotation so as to improve the relative rotation speed between the inner rotor and the outer rotor and improve the power generation efficiency.
The double-drive power generation device has various structural forms, wherein the horizontal shaft power generation device has better stability due to low longitudinal height.
Therefore, the chinese utility model patent CN 1094866a discloses a bidirectional rotary generator, the periphery of the stator is provided with a housing and a plurality of sets of bearings, the stator and the rotor can both rotate, the driving wheel determines that the stator and the rotor rotate in an opposite direction at the same time, so that the magnetic force lines of the rotor and the stator are increased, thereby increasing the output power of the generator.
For the dual output horizontal axis version, structural design rationality and compactness are critical to the design.
The above scheme has the following defects:
1. the right end cover of the outer rotor is used as a supporting shaft of the right end cover bearing and is exposed out of the right end cover, and a dust inlet channel is additionally formed.
2. The wiring terminal of collecting ring sets up on the top surface of shell, receives the rain easily and produces the electric leakage danger.
In view of this, it is urgently needed to improve the existing horizontal-axis dual-drive power generation device so as to improve the sealing performance, improve the safety, prolong the service life and reduce the maintenance cost.
SUMMERY OF THE UTILITY MODEL
To the above defect, the utility model aims to solve the technical problem that a totally enclosed horizontal axis dual drive power generation facility is provided to solve current wind power generation set, leakproofness and security have the problem of treating further improvement.
Therefore, the utility model provides a totally enclosed horizontal shaft double-drive power generation device, which comprises a shell and a double-drive generator arranged in the shell, wherein the double-drive generator comprises an inner rotor and an outer rotor rotating around the inner rotor, the rotating directions of the wind rotor and the outer rotor are opposite,
the shell comprises a shell body, a first end cover and a second end cover, wherein the first end cover and the second end cover are fixed at two ends of the shell body; a second bearing is arranged at the center of the inner side surface of the second end cover, and the first bearing is coaxial with the second bearing;
the outer rotor comprises an outer rotor shell, a first outer rotor end cover and a second outer rotor end cover, wherein the first outer rotor end cover and the second outer rotor end cover are arranged at two ends of the outer rotor shell;
the inner rotor is fixed on the inner rotor shaft, the inner end of the inner rotor shaft is rotatably arranged in the third bearing, and the outer end of the inner rotor shaft sequentially penetrates through the fourth bearing and the second bearing and extends out of the second end cover; the outer rotor shaft penetrates through the first bearing and extends out of the first end cover.
In the above technical solution, preferably, the winding device further includes a slip ring device for outputting electric energy generated by the winding of the outer rotor to the outside, and the slip ring device is disposed on the outer end face of the second end cover.
In the above technical solution, preferably, the slip ring device includes:
the collector ring is formed by concentrically nesting a plurality of annular conducting rings in a plane and is fixed on the outer side surface of the second outer rotor end cover;
and the wiring terminal is fixed on the outer side surface of the second end cover and elastically abutted against the collecting ring.
In the above technical solution, preferably, the vehicle further includes two sets of braking devices, and the braking devices include:
the brake calipers are respectively fixed on the outer side surfaces of the first end cover and the second end cover;
and the brake discs are respectively fixed on the outer rotor shaft and the inner rotor shaft, and the brake discs are matched into the brake caliper.
In the above technical solution, preferably, the brake disc is fixed to the outer rotor shaft or the inner rotor shaft through a fixing sleeve, the fixing sleeve is in a flange shape, the shaft portion is fixed to the outer rotor shaft or the inner rotor shaft through a set screw, and the side surface is fixed to the side surface of the brake disc.
In the above technical solution, preferably, one of the brake disks is fixed to an outer side surface of the first outer rotor end cover.
In the above technical solution, the brake device further includes two sets of brake devices, the brake devices include:
the brake calipers are respectively fixed on the inner side surfaces of the first end cover and the second end cover;
and the brake discs are respectively fixed on the outer rotor shaft and the inner rotor shaft, and the brake discs are matched into the brake caliper.
In the above technical solution, preferably, the center of the inner side surface of the first end cap protrudes inward to form a first inner protruding portion, and the first bearing is disposed in the first inner protruding portion;
the center of the inner side surface of the second end cover protrudes inwards to form a second inner protruding part, and the second bearing is arranged in the second inner protruding part.
In the above technical solution, preferably, the outer circumferential surfaces of the first end cover and the second end cover are respectively provided with an annular flange, the annular flange is uniformly provided with a plurality of outer connecting seats protruding outward in the radial direction along the circumferential direction, the housing is correspondingly provided with an inner connecting seat, and the first end cover and the second end cover are respectively fixed on the end surface of the magic housing by passing through the outer connecting seats and the inner connecting seat through bolts.
In the above technical solution, preferably, a spacer is arranged between the second bearing and the fourth bearing, and is used for axially limiting inner rings of the second bearing and the fourth bearing.
According to the above technical scheme, the utility model provides a totally enclosed horizontal axis dual drive power generation facility has solved the relatively poor leakproofness of prior art, and the problem that collecting ring device drenches with rain easily. Compared with the prior art, the utility model discloses following beneficial effect has:
the inner rotor and the outer rotor are opposite in rotation direction, and the power generation efficiency is improved. And after the power generation device is assembled, a fit clearance is only formed at the fit part of the first end cover and the second end cover of the shell, the outer rotor shaft and the inner rotor shaft, the sealing performance is improved, dust is prevented from entering, and the service life is prolonged.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly described and explained below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of a fully enclosed horizontal-axis dual-drive power generation apparatus according to an embodiment 1 of the present invention;
fig. 2 is a schematic view of a fully enclosed horizontal-axis dual-drive power generation apparatus according to embodiment 2 of the present invention;
FIG. 3 is a cross-sectional view of the fully enclosed horizontal axis dual drive power plant of FIG. 2;
FIG. 4 is a schematic view of the housing in embodiment 1;
FIG. 5 is a schematic view of a generator according to embodiments 1 and 2;
fig. 6 is a schematic view of embodiment 3 of the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 6;
fig. 8 is a schematic view of embodiment 4 of the present invention;
fig. 9 is an enlarged view of a portion B in fig. 8.
In fig. 1 to 9, the correspondence between the components is as follows:
a housing 21, a first end cap 22, a second end cap 23, a first bearing 24, a second bearing 25, an annular flange 26, an outer connecting seat 27;
a first outer protrusion 221, a first shaft hole 222, a first inner protrusion 223;
the second inner protrusion 231;
third inner projection 321, fourth inner projection 331;
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, under the premise that the person skilled in the art does not make creative work, all other embodiments obtained belong to the protection scope of the present invention.
In order to explain and explain the technical solution and implementation of the present invention more clearly, several preferred embodiments for implementing the technical solution of the present invention are introduced below.
It should be noted that the terms of orientation such as "inside, outside", "front, back" and "left and right" are used herein as reference objects, and it is obvious that the use of the corresponding terms of orientation does not limit the scope of protection of the present invention.
Example 1.
Referring to fig. 1, fig. 1 is a diagram of a fully-enclosed horizontal-axis dual-drive power generation apparatus according to an embodiment 1 of the present invention.
As shown in fig. 1 and 2, the utility model discloses a totally enclosed horizontal axis dual drive power generation device that embodiment 1 provided, including base 10, shell 20 and the generator that sets up in the shell, the generator is the dual drive generator that turns to opposite external rotor 30 and inner rotor 40 by the during operation and constitutes, and inner rotor and the external rotor around inner rotor pivoted are a center, and inner rotor axle and external rotor axle are on a central line. The housing 20 is disposed on the base 10.
As shown in fig. 3, in embodiment 1 of the present invention, the housing 20 includes a casing 21 and a first end cap 22 and a second end cap 23 fixed at two ends of the casing 21.
The center of the outer side of the first end cap 22 protrudes outward to form a first outward protruding portion 221, the first outward protruding portion 221 is provided with a first shaft hole 222, and the inner wall of the first shaft hole 222 is provided with an annular sealing groove for installing a sealing ring.
The center of the inner side of the first end cap 22 protrudes inward to form a first inner protrusion 223, the first inner protrusion 223 is provided with a first bearing hole and is mounted with the first bearing 24, and the first shaft hole 222 is coaxial with the first bearing hole 24.
The center of the inner side surface of the second end cover 23 protrudes inwards to form a second inner protruding portion 231, a second bearing hole is formed in the second inner protruding portion 231, the second bearing 25 is installed on the second inner protruding portion 231, and the second bearing hole is coaxial with the first bearing hole, so that the first bearing 24 and the second bearing 25 are coaxial.
The structure can save materials to the utmost extent and reduce the cost. Moreover, the structure can effectively ensure the coaxiality of the first shaft hole and the second shaft hole at the two ends of the shell. Because the first shaft hole and the second shaft hole are respectively provided with the inner shaft sub-shaft and the outer rotor shaft, the coaxiality of the inner rotor shaft and the outer rotor shaft is ensured.
As shown in fig. 4, the generator is composed of an outer rotor 30 and an inner rotor 40 which are opposite in rotation.
The center of the outer side surface of the first outer rotor end cover 32 protrudes outwards to form a second outer protruding portion, the outer end center of the second outer protruding portion is provided with an outer rotor shaft 34, the center of the inner side surface of the first outer rotor end cover 32 protrudes inwards to form a third inner protruding portion 321, and the center of the inner side surface of the third inner protruding portion 321 is provided with a third bearing hole and is provided with a third bearing 35. After the outer rotor shaft 34 passes through the first bearing 24, the outer end of the outer rotor shaft passes through the center of the first end cap 22.
The center of the inner side surface of the second outer rotor end cover 33 protrudes inwards to form a fourth inner protruding portion 331, a fourth bearing hole is formed in the center of the inner side surface of the fourth inner protruding portion 331 and is provided with a fourth bearing 36, and the third shaft hole is coaxial with the fourth shaft hole, so that the third bearing 35 and the fourth bearing 36 are coaxial.
The inner wall of the outer rotor shell 31 is provided with an annular winding to form an outer rotor winding, and the inner rotor is fixed on an inner rotor shaft 37 through key connection and is axially limited through a nut 38 and corresponds to the outer rotor winding.
The inner end of the inner rotor shaft 37 is rotatably arranged in the third bearing 35, and the outer end of the inner rotor shaft 37 penetrates through the fourth bearing 36, penetrates through the outer side surface of the second outer rotor end cover 33 and is matched with the fourth bearing 36.
Referring again to fig. 1, the outer end of the outer rotor shaft 34 passes through the first end cap 22 and is engaged with the first bearing 24, and the outer end of the inner rotor shaft 37 passes through the fourth bearing 36 and passes through the second outer rotor end cap 33, passes through the second bearing 25, and then passes through the second end cap 23. A spacer 39 is arranged between the fourth bearings 36 of the second bearing 25 and used for limiting the axial direction of the inner rings of the two bearings. Or may be implemented by a snap spring or the like.
The utility model discloses the above-mentioned structure that concrete embodiment 1 provided, after power generation facility assembled, inner rotor axle and outer rotor shaft both ends protrusion in the shell, the rotation opposite direction of inner rotor and outer rotor during operation, only have one fit clearance in the cooperation department with outer rotor axle and inner rotor axle on first end cover 22 and the second end cover 23, compare with prior art, improved sealing performance.
The collecting ring device is used for outputting electric energy generated by the outer rotor winding outwards, and comprises a collecting ring 51 and a wiring terminal 52 matched with the collecting ring 51.
The collecting ring 51 is formed by concentrically nesting a plurality of annular conducting rings in a plane, is fixed on the outer side surface of the second outer rotor end cover 33, the inner side of the collecting ring is connected with a corresponding phase line of the outer rotor winding, a mounting hole is formed in the second end cover 23, the wiring terminal 52 is fixed on the outer side surface of the second end cover 23, the inner end of the wiring terminal extends into the shell, and the wiring terminal is elastically abutted to the collecting ring 51 to realize electric energy output.
The outer edge of the outer side face of the second end cover 23 is provided with an annular protection structure, and the outer end face of the wiring terminal 52 does not protrude out of the outer end face of the annular protection structure, so that the rainwater pouring can be reduced, the service life is prolonged, and the safety is improved.
Example 2.
The difference between this embodiment 2 and embodiment 1 is that the slip ring device adopts another structure.
As shown in fig. 2 and 3, the collecting ring 61 in the collecting ring device is formed by fixing a plurality of annular conducting rings side by side on a sleeve-shaped ring seat, the ring seat is fixed on the outer side surface of the second outer rotor end cover 33 through screws and is connected with the corresponding phase line of the outer rotor winding, the connecting terminal 62 in the collecting ring device is fixed on the outer circumferential surface of the second end cover 23, and the inner end of the connecting terminal extends into the housing and is elastically abutted against the collecting ring 61 to realize electric energy output.
The outer end of the wiring terminal 62 is provided with a protective cover 63 for preventing rain and improving safety.
As shown in fig. 1, 2 and 3, in embodiments 1 and 2, the first end cap 22 and the second end cap 23 are respectively provided with an annular flange 26 on the outer circumference, the annular flange 26 is uniformly provided with a plurality of outer connecting seats protruding outward in the radial direction along the circumferential direction, the housing 21 is correspondingly provided with an inner connecting seat 27, and the first end cap 22 and the second end cap 23 are respectively fixed on the end surface of the housing 21 by bolts penetrating through the inner connecting seats and the outer connecting seats.
Example 3.
This embodiment 3 is an improvement of embodiment 1 or 2, and is provided with a braking device 70 provided on the outer side of the first and second end caps 22 and 23, respectively, for stopping the rotation of the inner rotor and/or the rotation of the outer rotor, thereby facilitating maintenance and repair.
As shown in fig. 5 and 6, the brake device is composed of a brake disk 71 and a fixed sleeve 73 of a caliper 72.
The utility model discloses a fixed cover 73 is fixed brake disc 71, and is fixed firm on the one hand, and on the other hand can also be through the mode that increases the gasket between fixed cover 73 and brake disc 71, and the clearance between adjustment brake disc 71 and the braking pincers 72 improves brake performance.
Example 4.
Embodiment 4 is an improvement of embodiment 3, in which a braking device is provided inside the housing 21 in order to prevent external dust and rainwater from affecting braking.
As shown in fig. 7 and 8, the brake caliper 72 is fixed to the inner side walls of the first and second end caps 22 and 23, respectively, and is fixed by bolts to the outside. The right brake disk 71 is fixed to the inner rotor shaft 37 by a fixing sleeve 73 in the same manner as in embodiment 3. The left brake disk 71 is directly fixed to the outer side wall of the first outer rotor end cover 32, reducing the space.
Synthesize the description of above concrete embodiment, the utility model provides a totally enclosed horizontal axis dual drive power generation facility compares with prior art, has following advantage:
firstly, the inner rotor and the outer rotor are opposite in rotation direction, and the power generation efficiency is improved. Particularly, a shaft seat part outside the second end cover in the prior art is eliminated, the matching between the shaft seat part and the bearing is changed, and after the power generation device is assembled, a matching gap exists between the first end cover 22 and the second end cover 23 and the matching position of the outer rotor shaft and the inner rotor shaft, so that the sealing performance is improved, and dust is prevented from entering.
Second, the axiality of inner rotor shaft has been guaranteed to third bearing 35 and fourth bearing 36, and simultaneously, because first shaft hole and second shaft hole on the shell have very high axiality, outer rotor shaft 34 and first bearing cooperation, inner rotor shaft 37 and second bearing cooperation, therefore, after the axle bed portion in the cancellation second end cover outside, not only shortened axial dimension, also make the cooperation of fourth bearing more reasonable, the error that axle bed portion axiality brought has been reduced, the axiality precision of outer rotor shaft and inner rotor shaft has been improved, the loss of generator has been reduced, and the power generation efficiency is improved.
And thirdly, the inner rotor and the outer rotor are convenient to stop during maintenance and repair due to the fact that the brake device is arranged. And the braking device adopts unique structural design, can be internally arranged and externally arranged, and has reliable braking performance.
Fourthly, the collecting ring device is arranged on the side face of the shell and is protected by the annular cover on the outer side face, rain is reduced, and safety is improved.
And fifthly, the collecting ring is fixed on the side end face of the outer rotor and is integrally in a disc shape, and compared with a sliding ring structure, the collecting ring is simple in manufacturing process, convenient to assemble, not easy to loosen and high in safety.
Finally, it should also be noted that the terms "comprises," "comprising," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (10)
1. A totally-enclosed horizontal shaft dual-drive power generation device comprises a shell and a dual-drive generator arranged in the shell, wherein the dual-drive generator comprises an inner rotor and an outer rotor rotating around the inner rotor, the rotation directions of the inner rotor and the outer rotor are opposite when the inner rotor and the outer rotor work, and the device is characterized in that,
the shell comprises a shell body, a first end cover and a second end cover, wherein the first end cover and the second end cover are fixed at two ends of the shell body; a second bearing is arranged at the center of the inner side surface of the second end cover, and the first bearing is coaxial with the second bearing;
the outer rotor comprises an outer rotor shell, a first outer rotor end cover and a second outer rotor end cover, wherein the first outer rotor end cover and the second outer rotor end cover are arranged at two ends of the outer rotor shell;
the inner rotor is fixed on the inner rotor shaft, the inner end of the inner rotor shaft is rotatably arranged in the third bearing, and the outer end of the inner rotor shaft sequentially penetrates through the fourth bearing and the second bearing and extends out of the second end cover; the outer rotor shaft penetrates through the first bearing and extends out of the first end cover.
2. The totally enclosed horizontal-axis dual drive power generation device according to claim 1, further comprising a slip ring device for outputting electric energy generated by the winding of the outer rotor to the outside, the slip ring device being provided on an outer end face of the second end cover.
3. The totally enclosed horizontal-axis dual drive power generation device according to claim 2, wherein the slip rings pass through a slip ring device comprising:
the collector ring is formed by concentrically nesting a plurality of annular conducting rings in a plane and is fixed on the outer side surface of the second outer rotor end cover;
and the wiring terminal is fixed on the outer side surface of the second end cover and elastically abutted against the collecting ring.
4. The totally enclosed horizontal-axis dual drive power generation device according to claim 1, further comprising two sets of braking devices, the braking devices comprising:
the brake calipers are respectively fixed on the outer side surfaces of the first end cover and the second end cover;
and the brake discs are respectively fixed on the outer rotor shaft and the inner rotor shaft, and the brake discs are matched into the brake caliper.
5. The fully-enclosed horizontal-shaft dual-drive power generation device according to claim 4, wherein the brake disc is fixed to the outer rotor shaft or the inner rotor shaft through a fixing sleeve, the fixing sleeve is in a flange shape, the shaft portion is fixed to the outer rotor shaft or the inner rotor shaft through a set screw, and the side surface is fixed to the side surface of the brake disc.
6. The fully enclosed horizontal-axis dual drive power generation device according to claim 5, wherein one of the brake disks is fixed on an outer side surface of the first outer rotor end cover.
7. The totally enclosed horizontal-axis dual drive power generation device according to claim 1, further comprising two sets of braking devices, the braking devices comprising:
the brake calipers are respectively fixed on the inner side surfaces of the first end cover and the second end cover;
and the brake discs are respectively fixed on the outer rotor shaft and the inner rotor shaft, and the brake discs are matched into the brake caliper.
8. The totally enclosed horizontal-axis dual drive power generation device according to claim 1,
the center of the inner side surface of the first end cover protrudes inwards to form a first inner protruding part, and the first bearing is arranged in the first inner protruding part;
the center of the inner side surface of the second end cover protrudes inwards to form a second inner protruding part, and the second bearing is arranged in the second inner protruding part.
9. The fully-enclosed horizontal-shaft dual-drive power generation device according to claim 1, wherein the first end cover and the second end cover are respectively provided with an annular flange on the outer circumferential surface thereof, the annular flange is uniformly provided with a plurality of outer connecting seats protruding radially outward along the circumferential direction, the housing is correspondingly provided with an inner connecting seat, and the first end cover and the second end cover are respectively fixed on the end surface of the magic housing by passing bolts through the outer connecting seats and the inner connecting seats.
10. The fully-enclosed horizontal-shaft dual-drive power generation device according to claim 1, wherein a spacer sleeve is arranged between the second bearing and the fourth bearing and used for axially limiting inner rings of the second bearing and the fourth bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121168613.8U CN214591076U (en) | 2021-05-26 | 2021-05-26 | Totally enclosed horizontal shaft dual drive power generation facility |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121168613.8U CN214591076U (en) | 2021-05-26 | 2021-05-26 | Totally enclosed horizontal shaft dual drive power generation facility |
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| CN214591076U true CN214591076U (en) | 2021-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178996A (en) * | 2021-05-26 | 2021-07-27 | 苏卫星 | Totally enclosed horizontal shaft dual drive power generation facility |
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2021
- 2021-05-26 CN CN202121168613.8U patent/CN214591076U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178996A (en) * | 2021-05-26 | 2021-07-27 | 苏卫星 | Totally enclosed horizontal shaft dual drive power generation facility |
| CN113178996B (en) * | 2021-05-26 | 2024-06-04 | 苏卫星 | Totally enclosed horizontal axis dual drive power generation facility |
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