CN214036575U - Coupling and wind driven generator - Google Patents
Coupling and wind driven generator Download PDFInfo
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- CN214036575U CN214036575U CN202022270541.XU CN202022270541U CN214036575U CN 214036575 U CN214036575 U CN 214036575U CN 202022270541 U CN202022270541 U CN 202022270541U CN 214036575 U CN214036575 U CN 214036575U
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- expansion sleeve
- ring
- chuck
- intermediate shaft
- snap ring
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Abstract
The utility model provides a shaft coupling and aerogenerator relates to power generation facility's technical field. The coupler comprises a first inner chuck, a first expansion sleeve, an intermediate shaft, a second expansion sleeve and a second inner chuck, wherein the first expansion sleeve fastens the first inner chuck at one end of the intermediate shaft, and the second expansion sleeve fastens the second inner chuck at the other end of the intermediate shaft; the intermediate shaft is provided with a first ring groove, and when the first expansion sleeve is positioned in the first ring groove, the first expansion sleeve can rotate around the axis of the intermediate shaft; the coupler further comprises a first clamping ring, the first clamping ring is fixedly installed on the first annular groove and protrudes out of the first annular groove, and the first clamping ring can block the first expansion sleeve from moving towards the direction far away from the first inner chuck. In this shaft coupling, first snap ring can block that first tight cover that expands moves towards the direction of keeping away from first interior chuck along the axis of jackshaft, and then can avoid first interior chuck to move towards the direction of keeping away from the jackshaft tip along the axis of jackshaft for first interior chuck is difficult for breaking off.
Description
Technical Field
The utility model relates to a power generation facility's technical field particularly, relates to a shaft coupling and aerogenerator.
Background
In wind generators, the coupling is an important component for coupling the gearbox and the generator. The coupling comprises an intermediate shaft, wherein an inner chuck and an outer chuck are arranged at two ends of the intermediate shaft, and the two outer chucks are fixedly arranged on a high-speed shaft of a gear box and a main shaft of a generator respectively; the two inner chucks and the intermediate shaft are respectively provided with teeth along respective axes, and the two inner chucks are respectively meshed with the intermediate shaft and are respectively fixedly arranged on the intermediate shaft through expansion sleeves; a rubber pad is also arranged between the corresponding inner chuck and the corresponding outer chuck, and the soft connection coupling effect is achieved. When the wind driven generator works, the power transmission path of the wind driven generator is as follows: the blade-gear box low-speed shaft-gear box high-speed shaft-first outer chuck-first rubber mat-first inner chuck-intermediate shaft-second inner chuck-second rubber mat-second outer chuck-generator spindle.
In the prior art, the two ends of the intermediate shaft are both provided with annular grooves, and the inner side of one end of the expansion sleeve, which is far away from the inner chuck, is also provided with teeth matched with the teeth on the intermediate shaft, so that the guide and limiting effects are achieved; when the tight cover that expands is located the annular, the tight cover that expands can rotate around the axis of jackshaft to make the through-hole alignment on it screw hole on the corresponding interior chuck, and then can use the bolt to expand tight cover and interior chuck fixed connection, make the tight cover that expands simultaneously be fixed in the jackshaft with interior chuck.
However, in the prior art, along with the increase of service time, the inner chuck on the intermediate shaft still appears becoming flexible easily, moves towards the direction of keeping away from the corresponding tip of intermediate shaft, and then produces a series of problems such as inner chuck and outer chuck break away from, and the cushion damages.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a coupling for solving the technical problem of easy disengagement of an inner chuck in a coupling of a wind turbine generator in the prior art.
The utility model provides a coupler, including first inner chuck, first tight cover, jackshaft, second tight cover and the second inner chuck of expanding, the first tight cover of expanding fastens the first inner chuck in one end of the jackshaft, the second tight cover of expanding fastens the second inner chuck in the other end of the jackshaft;
the intermediate shaft is provided with a first ring groove, and when the first expansion sleeve is positioned in the first ring groove, the first expansion sleeve can rotate around the axis of the intermediate shaft;
the shaft coupling still includes first snap ring, first snap ring fixed mounting in first annular and protrusion in first annular, first snap ring can block first tight cover of expanding is towards keeping away from the direction motion of first interior chuck.
Furthermore, the intermediate shaft is also provided with a second annular groove, and when the second expansion sleeve is positioned in the second annular groove, the second expansion sleeve can rotate around the axis of the intermediate shaft;
the shaft coupling still includes the second snap ring, second snap ring fixed mounting in second annular and protrusion in the second annular, the second snap ring can block the tight cover of second expansion is towards keeping away from the direction motion of chuck in the second.
Further, first snap ring includes the ring body, the ring body is the opening ring, the both ends of ring body are provided with first connecting portion and second connecting portion respectively, first connecting portion with after the second connecting portion is connected can with first snap ring is fixed in first annular.
Furthermore, the coupler also comprises a first fastening assembly, and the first connecting part and the second connecting part are fixedly connected through the first fastening assembly.
Furthermore, the first connecting part is a first nut, and the second connecting part is a second nut;
the first fastening assembly comprises a first bolt and a third nut, and the first bolt penetrates through the first nut and the second nut and then is connected with the third nut.
Further, the first nut and the second nut are arranged at the intersection of the inner side of the ring body and the outer ring and are perpendicular to the ring body.
Further, the first snap ring is flat along the axial direction.
Optionally, the first snap ring is helical along its axial direction.
Further, the second snap ring is identical in structure to the first snap ring.
The utility model provides a shaft coupling can produce following beneficial effect:
the utility model provides a coupler, which comprises a first snap ring, wherein the first snap ring is fixedly arranged on a first ring groove on a middle shaft and protrudes out of the first ring groove, thereby playing a role of blocking a first expansion sleeve; when the first expansion sleeve fails, the first clamping ring can still block the first expansion sleeve, so that the first expansion sleeve can be prevented from moving towards the direction far away from the first inner chuck along the axis of the intermediate shaft, and the first inner chuck can be prevented from moving towards the direction far away from the end part of the intermediate shaft along the axis of the intermediate shaft; and when first tight cover that expands can fasten chuck in the jackshaft in first, first snap ring plays the effect of consolidating tight cover and first interior chuck of first expanding to can prolong the life of first tight cover and first interior chuck of expanding. Namely, the utility model provides a shaft coupling, first interior chuck is difficult for throwing away, has correspondingly reduced the damage to generator and gear box that first interior chuck throw away the initiation, has reduced aerogenerator's shut down number of times, can guarantee aerogenerator's normal operating.
A second object of the present invention is to provide a wind power generator to solve the technical problem of easy disengagement of the inner chuck in the shaft coupling of the wind power generator existing in the prior art.
The utility model provides a wind driven generator, including gear box, generator and the shaft coupling, the gear box includes high-speed axle and low-speed axle, the coupling joint in the high-speed axle with between the main shaft of generator.
The utility model provides a wind driven generator has the whole advantages of foretell shaft coupling, and the event is no longer repeated here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic partial structural diagram of a coupling according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a coupling according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first snap ring of a coupling according to an embodiment of the present invention.
Description of reference numerals:
100-a first outer chuck; 150-a first rubber pad; 200-a first inner chuck; 250-a first expansion sleeve;
300-a first snap ring; 310-a ring body; 320-a first connection; 330-a second connection;
500-intermediate shaft; 510-a first ring groove; 520-a second ring groove; 530-shaft teeth;
700-a second snap ring;
750-a second expansion sleeve; 800-a second inner chuck; 850-second rubber mat; 900-second outer chuck.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic partial structural view of a coupling provided in this embodiment; fig. 2 is a schematic structural diagram of the coupling provided in this embodiment.
The present embodiment provides a coupling, as shown in fig. 1 and 2, which includes a first inner chuck 200, a first expansion sleeve 250, an intermediate shaft 500, a second expansion sleeve 750, and a second inner chuck 800, the first expansion sleeve 250 fastening the first inner chuck 200 to one end of the intermediate shaft 500, the second expansion sleeve 750 fastening the second inner chuck 800 to the other end of the intermediate shaft 500; the intermediate shaft 500 is provided with a first ring groove 510, and when the first expansion sleeve 250 is positioned in the first ring groove 510, the first expansion sleeve 250 can rotate around the axis of the intermediate shaft 500; the coupling further comprises a first snap ring 300, the first snap ring 300 is fixedly installed on the first annular groove 510 and protrudes out of the first annular groove 510, and the first snap ring 300 can block the first expansion sleeve 250 from moving in a direction away from the first inner chuck 200.
The coupling provided by the embodiment comprises a first snap ring 300, wherein the first snap ring 300 is fixedly arranged on a first annular groove 510 on an intermediate shaft 500 and protrudes out of the first annular groove 510, so that the first expansion sleeve 250 can be blocked; when the first expansion sleeve 250 fails, the first clamping ring 300 can block the first expansion sleeve 250, so that the first expansion sleeve 250 can be prevented from moving along the axis of the intermediate shaft 500 towards the direction far away from the first inner chuck 200, and further the first inner chuck 200 can be prevented from moving along the axis of the intermediate shaft 500 towards the direction far away from the end part of the intermediate shaft 500; when the first expansion sleeve 250 can fasten the first inner chuck 200 to the intermediate shaft 500, the first snap ring 300 plays a role of reinforcing the first expansion sleeve 250 and the first inner chuck 200, thereby being capable of extending the lifespan of the first expansion sleeve 250 and the first inner chuck 200. That is, according to the coupling provided by the embodiment, the first inner chuck 200 is not easy to disengage, damage to the generator and the gearbox caused by disengagement of the first inner chuck 200 is correspondingly reduced, the shutdown frequency of the wind driven generator is reduced, and normal operation of the wind driven generator can be ensured.
Specifically, in this embodiment, the intermediate shaft 500 is further provided with a second annular groove 520, and when the second expansion sleeve 750 is located in the second annular groove 520, the second expansion sleeve 750 can rotate around the axis of the intermediate shaft 500; the coupler further comprises a second snap ring 700, the second snap ring 700 is fixedly mounted on the second annular groove 520 and protrudes out of the second annular groove 520, and the second snap ring 700 can block the second expansion sleeve 750 from moving towards a direction away from the second inner chuck 800. When the second expansion sleeve 750 fails, the second snap ring 700 can block the second expansion sleeve 750, so that the second expansion sleeve 750 can be prevented from moving along the axis of the intermediate shaft 500 towards the direction far away from the second inner chuck 800, and the second inner chuck 800 can be prevented from moving along the axis of the intermediate shaft 500 towards the direction far away from the end part of the intermediate shaft 500; when the second expansion sleeve 750 can fasten the second inner chuck 800 to the intermediate shaft 500, the second snap ring 700 serves to reinforce the second expansion sleeve 750 and the second inner chuck 800, thereby extending the lifespan of the second expansion sleeve 750 and the second inner chuck 800. That is, in the coupling provided by this embodiment, the second inner chuck 800 is not easily disengaged, which correspondingly reduces the damage to the generator and the gearbox caused by the disengagement of the second inner chuck 800, further reduces the shutdown frequency of the wind turbine generator, and further ensures the normal operation of the wind turbine generator.
Specifically, in this embodiment, the shaft coupling further includes a first outer chuck 100, a first rubber pad 150, a second rubber pad 850 and a second outer chuck 900, wherein the first rubber pad 150 is installed between the first outer chuck 100 and the first inner chuck 200 to perform a soft connection coupling function; the second rubber pad 850 is installed between the second outer chuck 900 and the second inner chuck 800 to play a role of soft connection coupling; and one of the first and second outer chucks 100 and 900 is used for connection with a high speed shaft of a gearbox and the other is used for connection with a main shaft of a generator. In this embodiment, since the first inner chuck 200 is not easily disengaged, the first rubber mat 150 can be effectively prevented from being damaged due to the engagement between the first inner chuck 200 and the first outer chuck 100, which is caused by the disengagement of the first inner chuck 200, so that the normal operation of the wind turbine can be ensured, and the cost can be saved.
In this embodiment, the side surface of the intermediate shaft 500 is provided with shaft teeth 530 along the axial direction thereof, and the first inner chuck 200 and the second inner chuck 800 are both sleeved on the intermediate shaft 500, engaged with the intermediate shaft 500, and fastened to the intermediate shaft 500 by the first expansion sleeve 250 and the second expansion sleeve 750, respectively. Therefore, taking as an example that the first outer chuck 100 is used for connecting with a high-speed shaft of a gearbox and the second outer chuck 900 is used for connecting with a main shaft of a generator (both of which are taken as examples below), the power transmission path in the coupling is: the first outer chuck 100, the first rubber pad 150, the first inner chuck 200, the intermediate shaft 500, the second inner chuck 800, the second rubber pad 850, and the second outer chuck 900.
In this embodiment, the inner side of the end of the first expansion sleeve 250 away from the first inner chuck 200 is provided with teeth matched with the shaft teeth 530, when the first expansion sleeve 250 is installed, the first expansion sleeve 250 can be sleeved on the intermediate shaft 500 first, and the teeth on the inner side of the first expansion sleeve 250 are located in the first ring groove 510, at this time, the first expansion sleeve 250 can rotate around the axis of the intermediate shaft 500, so that the position of the first expansion sleeve 250 relative to the first inner chuck 200 can be adjusted, and the first expansion sleeve 250 can be fixed on the first inner chuck 200.
More specifically, in the present embodiment, the first expansion sleeve 250 and the first inner chuck 200 are connected by bolts, the first expansion sleeve 250 is provided with through holes, the first inner chuck 200 is provided with threaded holes, and the bolts are fixed to the threaded holes of the first inner chuck 200 after passing through the through holes of the first expansion sleeve 250, so that the first expansion sleeve 250 is fixed to the first inner chuck 200 and simultaneously the first inner chuck 200 is pressed against the intermediate shaft 500.
In this embodiment, the second expansion sleeve 750 has the same structure as the first expansion sleeve 250, and is not described herein again.
In this embodiment, the second snap ring 700 and the first snap ring 300 have the same structure. Therefore, only the specific structure of the first snap ring 300 will be described below, and the structure of the second snap ring 700 will not be described in detail.
Fig. 3 is a schematic structural diagram of a first snap ring of the coupling provided in this embodiment.
In this embodiment, as shown in fig. 3, the first snap ring 300 includes a ring body 310, the ring body 310 is an open ring, two ends of the ring body 310 are respectively provided with a first connecting portion 320 and a second connecting portion 330, and the first snap ring 300 can be fixed to the first ring groove 510 after the first connecting portion 320 and the second connecting portion 330 are connected. In this arrangement, when the first snap ring 300 is installed, the ring body 310 can be opened, so that the first snap ring 300 can be conveniently installed in the first ring groove 510.
It should be noted that, in other embodiments of the present application, the first snap ring 300 may also be a closed ring having a certain elasticity, and the elasticity is enough to enable the closed ring to be installed in the first ring groove 510 and not to be easily separated from the first ring groove 510.
Specifically, in this embodiment, the shaft coupling further includes a first fastening assembly, and the first connecting portion 320 and the second connecting portion 330 are fixedly connected by the first fastening assembly.
Specifically, the first connection portion 320 is a first nut, and the second connection portion 330 is a second nut; the first fastening assembly comprises a first bolt and a third nut, and the first bolt penetrates through the first nut and the second nut and then is connected with the third nut. So set up, convenient for material selection, simple manufacture, with low costs.
Specifically, in this embodiment, the first fastening component further includes a spare nut, and the spare nut is disposed on a side of the third nut away from the screw head of the first bolt, so as to play a role in reinforcement.
In this embodiment, the first nut and the second nut are disposed at the intersection of the inner side and the outer ring of the ring body 310, and are perpendicular to the ring body 310. So set up, the operating space who uses first fastening components to connect first nut and second nut is big, the operation of being convenient for.
It should be noted that "inside of the ring body 310" refers to a side of the ring body 310 away from the first expansion sleeve 250 in the axial direction of the intermediate shaft 500, and "outside ring of the ring body 310" refers to a side of the ring body 310 away from the intermediate shaft 500 in the radial direction of the ring body 310.
Specifically, in the present embodiment, the first snap ring 300 is flat along its axial direction.
However, in other embodiments of the present application, the first snap ring 300 may have a spiral shape along the axial direction thereof.
The embodiment also provides a wind driven generator which comprises a gearbox, a generator and the coupler, wherein the gearbox comprises a high-speed shaft and a low-speed shaft, and the coupler is connected between the high-speed shaft and a main shaft of the generator. The power transmission path of the wind driven generator is as follows: the generator comprises a gear box low-speed shaft, a gear box high-speed shaft, a first outer chuck 100, a first rubber gasket 150, a first inner chuck 200, an intermediate shaft 500, a second inner chuck 800, a second rubber gasket 850, a second outer chuck 900 and a generator main shaft. The wind driven generator has all the beneficial effects of the coupler, and therefore, the details are not repeated.
Finally, it is further noted that, herein, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, 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.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A coupling, characterized by comprising a first inner chuck (200), a first expansion sleeve (250), an intermediate shaft (500), a second expansion sleeve (750) and a second inner chuck (800), wherein the first expansion sleeve (250) fastens the first inner chuck (200) to one end of the intermediate shaft (500), and the second expansion sleeve (750) fastens the second inner chuck (800) to the other end of the intermediate shaft (500);
the intermediate shaft (500) is provided with a first ring groove (510), and when the first expansion sleeve (250) is positioned in the first ring groove (510), the first expansion sleeve (250) can rotate around the axis of the intermediate shaft (500);
the coupler further comprises a first clamping ring (300), the first clamping ring (300) is fixedly installed on the first annular groove (510) and protrudes out of the first annular groove (510), and the first clamping ring (300) can block the first expansion sleeve (250) from moving towards the direction far away from the first inner chuck (200).
2. The coupling according to claim 1, characterized in that the intermediate shaft (500) is further provided with a second ring groove (520), and when the second expansion sleeve (750) is located in the second ring groove (520), the second expansion sleeve (750) can rotate around the axis of the intermediate shaft (500);
the shaft coupling still includes second snap ring (700), second snap ring (700) fixed mounting in second annular (520) and protrusion in second annular (520), second snap ring (700) can block the tight cover of second bloated (750) is towards keeping away from the direction motion of chuck (800) in the second.
3. The shaft coupling according to claim 1, wherein the first snap ring (300) comprises a ring body (310), the ring body (310) is an open ring, a first connecting portion (320) and a second connecting portion (330) are respectively arranged at two ends of the ring body (310), and the first snap ring (300) can be fixed to the first ring groove (510) after the first connecting portion (320) and the second connecting portion (330) are connected.
4. The coupling according to claim 3, characterized in that it further comprises a first fastening assembly by means of which the first connecting portion (320) and the second connecting portion (330) are fixedly connected.
5. The coupling according to claim 4, characterized in that the first connection portion (320) is a first nut and the second connection portion (330) is a second nut;
the first fastening assembly comprises a first bolt and a third nut, and the first bolt penetrates through the first nut and the second nut and then is connected with the third nut.
6. The coupling according to claim 5, wherein the first and second nuts are both disposed at the intersection of the inner and outer races of the ring body (310) and are both perpendicular to the ring body (310).
7. A coupling according to any one of claims 3 to 5, wherein the first snap ring (300) is flat in its axial direction.
8. A coupling according to any of claims 3-5, wherein the first snap ring (300) is helical in its axial direction.
9. The coupling of claim 2, wherein the second snap ring (700) is identical in construction to the first snap ring (300).
10. A wind power generator comprising a gearbox, a generator and a coupling according to any of claims 1-9, said gearbox comprising a high speed shaft and a low speed shaft, said coupling being connected between said high speed shaft and a main shaft of said generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270541.XU CN214036575U (en) | 2020-10-13 | 2020-10-13 | Coupling and wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022270541.XU CN214036575U (en) | 2020-10-13 | 2020-10-13 | Coupling and wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036575U true CN214036575U (en) | 2021-08-24 |
Family
ID=77352735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022270541.XU Active CN214036575U (en) | 2020-10-13 | 2020-10-13 | Coupling and wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214036575U (en) |
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2020
- 2020-10-13 CN CN202022270541.XU patent/CN214036575U/en active Active
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