CN109751193B - Wind generating set - Google Patents
Wind generating set Download PDFInfo
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- CN109751193B CN109751193B CN201910243434.7A CN201910243434A CN109751193B CN 109751193 B CN109751193 B CN 109751193B CN 201910243434 A CN201910243434 A CN 201910243434A CN 109751193 B CN109751193 B CN 109751193B
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- sliding body
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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 provides a wind generating set. The wind generating set comprises: a hub rotatably mounted on the support frame; a wind power generator comprising a rotor and a stator, the stator being fixed to the support frame; an adjustable connection connecting the hub and the rotor to each other, and configured to enable the hub to rotate the rotor with the hub and to allow the hub to tilt downward relative to the rotor. According to the wind generating set of the invention, the torque of the hub can be transmitted to the rotor, and the bending moment of the hub can be basically prevented from being transmitted to the rotor.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind generating set.
Background
The wind generating set is used for converting wind energy into electric energy. The wind generating set includes a hub on which the blades are mounted, a generator, and a tower that supports the hub and the generator.
The hub is connected to the rotor of the generator to transmit the torque of the impeller (blades and hub) to the rotor of the generator. In the prior art, the rotor and the hub are directly and rigidly connected through the connecting flange, so that the bending moment and deformation of the impeller are transmitted to the generator, the air gap of the generator cannot be maintained, and the attraction between the stator and the rotor of the generator can be caused under the serious condition. At the same time, large bending moments can also cause damage to components of the generator (e.g., bearings).
Disclosure of Invention
An object of the present invention is to provide a wind turbine generator system capable of substantially preventing a bending moment of a hub from being transmitted to a rotor.
Another object of the present invention is to provide a wind turbine generator system with adjustable connectors of a simple structure.
According to an aspect of the present invention, there is provided a wind turbine generator system, comprising: a hub rotatably mounted on the support frame; a wind power generator comprising a rotor and a stator, the stator being fixed to the support frame; an adjustable connection connecting the hub and the rotor to each other and configured to enable the hub to rotate the rotor with the hub and to allow the hub to tilt downward relative to the rotor.
Alternatively, the hub may be provided with a first flange protruding towards the rotor, the rotor may be provided with a second flange protruding towards the hub, and the adjustable connection may connect the first and second flanges to each other.
Alternatively, the first flange and the second flange may have the same diameter as each other, the first flange may include an extension portion extending from the first flange toward the second flange, the second flange may include a recess portion recessed inward so that the extension portion is insertable into the recess portion, and the adjustable connection member may connect both ends of the extension portion in the circumferential direction and both sides of the recess portion in the circumferential direction, respectively, to each other so that the first flange is movable relative to the second flange in the axial direction of the rotor.
Alternatively, one end of the adjustable connection member may be fixed to both ends of the extension portion, and the other end of the adjustable connection member may be connected to both sides of the recess portion and may be slidable in an axial direction of the rotor.
Alternatively, the extension part may include a protrusion piece protruding from both ends of the extension part toward both sides of the recess part, respectively, a first insertion groove may be opened on the protrusion piece, the recess part may include a second insertion groove provided on both sides of the recess part, the adjustable connection part may include a slide body, a first end of the slide body is fastened to the first insertion groove, a second end of the slide body abuts against a bottom surface of the second insertion groove, and a diameter of the second end of the slide body is smaller than a length of the second insertion groove in an axial direction of the rotor.
Alternatively, one end of the adjustable connection member may be fixed to the both sides of the recess portion, and the other end of the adjustable connection member may be connected to the both ends of the extension portion and slidable in the axial direction of the rotor.
Alternatively, the recessed portion may include a protruding piece protruding from the both sides of the recessed portion toward the both ends of the extending portion, respectively, a first insertion groove opened on the protruding piece, the extending portion may include a second insertion groove provided on the both sides of the extending portion, the adjustable connection member may include a sliding body, a first end of the sliding body is fastened to the first insertion groove, a second end of the sliding body abuts against a bottom surface of the second insertion groove, and a diameter of the second end of the sliding body is smaller than a length of the second insertion groove in an axial direction of the rotor.
Optionally, the adjustable connector may further comprise a locking sleeve fitted over the sliding body and the protruding member to lock the sliding body to the protruding member.
Alternatively, the locking sleeve may comprise a first portion that fits over the sliding body and a second portion that fits over the protruding member, the second portion having a diameter that may be greater than the diameter of the first portion.
Optionally, the second end of the slider body may be provided with a protection to prevent wear of the second end of the slider body.
Optionally, the first flange and the second flange are divided in a circumferential direction into a plurality of flange segments spaced apart from each other.
Optionally, the wind park may comprise a plurality of adjustable connections.
Optionally, a first connecting flange may be disposed on the first flange, a second connecting flange may be disposed on the second flange, and the adjustable connecting member may connect the first connecting flange and the second connecting flange to each other.
Alternatively, the adjustable connection may comprise a connecting rod and a rolling element arranged at a first end and/or a second end of the connecting rod, the rolling element may comprise an outer ring fixed to the connecting rod and an inner ring rotatable relative to the outer ring, the inner ring being fixable to the first and/or second connection flange.
Optionally, the first end and the second end of the connecting rod may be provided with the rolling member, and the diameter of the first connecting flange may be smaller than the diameter of the second connecting flange.
Alternatively, the rolling element may be a spherical plain bearing.
According to the wind generating set, the torque of the hub can be transmitted to the rotor, and the bending moment of the hub can be basically prevented from being transmitted to the rotor, so that the influence of the bending moment on the air gap of the generator can be prevented, the stability of the air gap can be ensured, and the generating efficiency can be improved. In addition, the structure of the adjustable connecting piece is simple and easy to realize, and an additional lubricating device is not needed. In addition, the sliding body according to the first embodiment of the invention is circumferentially adjustable and self-locking, so that the preload adjustment can be performed at the initial assembly and when the top end of the sliding body is worn after the wind turbine generator system has been in operation for a while.
Drawings
Fig. 1 is a perspective view of a wind power plant according to an embodiment of the invention;
FIG. 2 is a cross-sectional view of the wind turbine of FIG. 1;
FIG. 3 is a schematic view showing a connection portion of a hub and a rotor of the wind turbine of FIG. 1;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
fig. 6 is an enlarged view of a portion B in fig. 5;
FIG. 7 is a schematic view of a hub to rotor connection according to another embodiment of the present invention;
fig. 8 is a schematic view seen in a direction a1 of fig. 7;
fig. 9 is a schematic view viewed in a direction a2 of fig. 7.
Detailed Description
Hereinafter, a wind turbine generator set according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 9.
Fig. 1 is a perspective view of a wind turbine generator system according to an embodiment of the present invention, and fig. 2 is a sectional view of the wind turbine generator system of fig. 1.
As shown in fig. 1 and 2, according to an embodiment of the present invention, a wind turbine generator set may include a hub 2, a wind turbine generator 5. The hub 2 may be used for mounting the blade, and the hub 2 may be rotatably mounted on the support frame 1 by means of bearings 3a and 3b, e.g. on the front frame 1a of the support frame 1. The wind generator 5 may comprise a rotor 3 and a stator 4. The rotor 3 may be connected to the hub 2 by an adjustable connection 100 according to an embodiment of the invention. The rotor 3 and the stator 4 may be coupled to each other by a bearing 6, and the stator 4 may be fixed to the support frame 1, for example, to the rear frame 1b of the support frame 1. The base 7 may be coupled to the rear frame 1b of the support frame 1 and supported by a tower (not shown).
According to an embodiment of the invention, the adjustable connection 100 may be configured to enable the hub 2 to bring the rotor 3 into rotation with the hub 2 and to allow the hub 2 to be tilted downward relative to the rotor 3. With this arrangement, the hub 2 can transmit the torque to the rotor 3 without substantially transmitting the bending moment to the rotor 3, so that the air gap of the generator 5 can be stabilized, and the power generation efficiency can be improved. Hereinafter, an adjustable connection 100 according to an embodiment of the present invention will be described.
Fig. 3 is a schematic view showing a connection portion of a hub and a rotor of the wind turbine generator system of fig. 1, fig. 4 is a front view of fig. 3, fig. 5 is a sectional view taken along line a-a of fig. 4, and fig. 6 is an enlarged view of portion B of fig. 5.
As shown in fig. 1 to 4, the hub 2 is provided with a first flange 210 protruding towards the rotor 3, the rotor 3 is provided with a second flange 310 protruding towards the hub 2, and the adjustable connection 100 connects the first flange 210 and the second flange 310 to each other.
According to an embodiment of the present invention, adjustable connector 100 is configured such that first flange 210 can rotate second flange 310 together (e.g., in the direction D1), i.e., the torque of first flange 210 can be transferred to second flange 310. Also, adjustable connection 100 is configured such that first flange 210 is capable of tilting downward (e.g., downward in the direction of D2) relative to second flange 310, i.e., the bending moment of first flange 210 may not be transferred to second flange 310, or substantially not transferred to second flange 310. Thus, the adjustable connection 100 according to embodiments of the present invention is a rigid connection with respect to torque, but a resilient connection with respect to bending moments.
According to an embodiment of the present invention, as shown in fig. 3 and 6, the diameters of the first flange 210 and the second flange 310 may be the same as each other, so that the first flange 210 and the second flange 310 are connected to each other using the connector 100.
According to an embodiment of the present invention, the first flange 210 and the second flange 310 may be divided into a plurality of flange sections spaced apart from each other in a circumferential direction. In this case, on the one hand, material can be saved; on the other hand, it is more important to facilitate the first flange 210 to be inclined downward with respect to the second flange 310.
According to an embodiment of the present invention, the number of flange sections of the first and second flanges 210 and 310 and the distance between the flange sections are not particularly limited. The case where the first and second flanges 210 and 310 are divided into three flange sections is shown in fig. 3, but the present invention is not limited thereto.
According to an embodiment of the present invention, first flange 210 may include an extension 211 extending from first flange 210 toward second flange 310. Accordingly, the second flange 310 may include a recess 311 recessed inward from the second flange 310, and the extension 211 may be disposed in the recess 311.
Specifically, the length of the extended portion 211 in the axial direction of the first flange 210 may be smaller than the length of the recessed portion 311 in the axial direction of the second flange 310, and the length of the extended portion 211 in the circumferential direction of the first flange 210 may be smaller than the length of the recessed portion 311 in the circumferential direction of the second flange 310, so the extended portion 211 may be received in the recessed portion 311. Also, a gap is left between both ends in the circumferential direction of the extended portion 211 and both sides in the circumferential direction of the recessed portion 311, and a gap is also left between the end of the extended portion 211 and the bottom surface of the recessed portion 311.
It should be understood that although fig. 3 shows that one extension 211 is provided on one flange section of first flange 210 and one recess 311 is provided on one flange section of second flange 310, the present invention is not limited thereto. That is, the number of extensions 211 and recesses 311 on one flange segment may be determined based on the connection strength of the adjustable connector 100 and the number of connection points of the first flange 210 and the second flange 310.
According to an embodiment of the present invention, as shown in fig. 4 and 5, one end of the adjustable connection member 100 may be fixed to both ends of the extension portion 211 in the circumferential direction, and the other end of the adjustable connection member 100 is connected to both sides of the concave portion and is slidable in the axial direction of the rotor 3. Thus, the first flange 210 may be inclined downward, or slightly swung in a radial direction, with respect to the second flange 310.
Specifically, as shown in fig. 6, the extension part 211 may include protruding pieces 212 protruding from both ends of the extension part 211 toward both sides of the recess part 311, respectively, and the protruding pieces 212 may be opened with first insertion grooves 213. The recess 311 may include second insertion grooves 313 provided on both sides of the recess 311.
According to an embodiment of the present invention, the protrusion 212 may be separated from the sidewall of the recess 311 by a predetermined distance so as to leave an operation space. Alternatively, the first insertion groove 213 may be a cylindrical hole, and the second insertion groove 313 may be a hole having a certain length in the axial direction of the rotor 3.
According to an embodiment of the present invention, as shown in fig. 6, the adjustable connection member 100 may include a sliding body 110, and a first end 111 of the sliding body 110 may be fastened to the first insertion groove 213. Specifically, an internal thread may be formed on a sidewall of the first insertion groove 213, an external thread may be formed at the first end 111 of the slider 110, and the first end 111 of the slider 110 may be fastened to the first insertion groove 213 by a thread.
In addition, as shown in fig. 6, the second end 112 of the slider 110 may abut against the bottom surface of the second insertion groove 313. That is, there may be no or little fitting clearance between the second end 112 of the slider 110 and the bottom surface of the second insertion groove 313. In addition, the second end 112 of the slider 110 may have a diameter smaller than the length of the second insertion groove 313 in the axial direction of the rotor 3.
According to an embodiment of the present invention, since the first end 111 of the slider 110 is fastened to the first insertion groove 213 and the second end 112 of the slider 110 abuts against the bottom surface of the second insertion groove 313, the slider 110 is rigidly connected with respect to the circumferential direction of the first and second flanges 210 and 310, and the torque of the first flange 210 can be directly transmitted to the second flange 310 through the slider 110.
In addition, according to an embodiment of the present invention, since the second end 112 of the sliding body 110 has a diameter smaller than the length of the second insertion groove 313 in the axial direction of the rotor 3, the second end 112 of the sliding body 110 may slide in the axial direction of the rotor 3 in the second insertion groove 313. Accordingly, as shown in fig. 3, when the first flange 210 is inclined or swung downward in a radial direction by a bending moment, the second end 112 of the sliding body 110 may slide in the second insertion groove 313 in an axial direction of the rotor 3, so that the bending moment of the first flange 210 may be unloaded through the sliding body 110 and thus may not be transmitted to the second flange 310. That is, the bending moment of the hub 2 may not be transmitted to the rotor 3, or substantially not transmitted to the rotor 3.
According to an embodiment of the present invention, since the second end 112 of the slider 110 is slidable in the axial direction of the rotor 3 in the second insertion groove 313, in order to prevent the second end 112 of the slider 110 from being worn, a protector (not shown) may be provided at the second end 112 of the slider to prevent the second end 112 of the slider 110 from being worn. For example, the protection member may be a metal sleeve sleeved on the second end 112 or a PEEK plating layer coated on the second end 112, but the present invention is not limited thereto.
According to an embodiment of the present invention, as shown in fig. 6, the adjustable connector 100 may further include a locking sleeve 120 that fits over the sliding body 110 and the protruding member 212 to lock the sliding body 110 to the protruding member 212.
Specifically, the protruding member 212 may have a cylindrical shape and be formed with external threads on an outer surface thereof. The locking sleeve 120 may include a first portion 121 having a small aperture and a second portion 122 having a large aperture, each of the first and second portions 121 and 122 having internal threads formed on an inner wall thereof, the first portion 121 may be fastened to the first end 111 of the slider body 110, and the second portion 122 may be fastened to the protrusion 212, thereby locking the slider body 110 to the protrusion 212.
According to an embodiment of the present invention, when the slider body 110 and the locking sleeve 120 of the adjustable coupling 100 are installed, the first end 111 of the slider body 110 may be screwed into the first insertion groove 213, and the locking sleeve 120 may be screwed onto the external threads of the first end 111 of the slider body 110 and the external threads of the protrusion 212.
The circumference of the sliding body 110 is adjustable and self-lockable, and the pre-tightening force can be adjusted as required during initial installation, so that the second end 112 of the sliding body 110 abuts against the bottom surface of the second insertion groove 313, and then the second portion 122 of the locking sleeve 120 is screwed to the bottom, thereby locking the sliding body 110.
According to an embodiment of the present invention, after the wind turbine generator set is operated for a period of time, there may be some wear of the second end 112 of the sliding body 110, resulting in an increase in the fit clearance between the second end 112 and the bottom surface of the second insertion groove 313, affecting the transmission of torque. At this time, the locking sleeve 120 may be loosened, the unscrewed length of the slider body 110 may be readjusted, and then the slider body 110 may be locked by tightening the locking sleeve 120 again.
In addition, it should be understood that, although it is described above that one end of the adjustable connector 100 is fixed to both ends in the circumferential direction of the extension portion 211 and the other end of the adjustable connector 100 is rotatably connected to both sides in the circumferential direction of the recess portion 311 as an example, the present invention is not limited thereto.
According to an embodiment of the present invention, one end of the adjustable connection member 100 may be fixed to both sides of the recess 311 in the circumferential direction, and the other end of the adjustable connection member 100 may be rotatably connected to both ends of the extension 211 in the circumferential direction. In this case, protruding pieces may be formed at both ends of the extending portion 211, first insertion grooves may be formed on the protruding pieces, and second insertion grooves may be formed at both sides of the recessed portion 311.
As described above, the adjustable connection 100 including the sliding body 110 and the locking sleeve 120 according to the embodiment of the present invention can transmit the torque of the hub 2 to the rotor 3 and can substantially prevent the bending moment of the hub 2 from being transmitted to the rotor 3, thereby preventing the bending moment from affecting the air gap of the generator, contributing to securing the stability of the air gap, and improving the power generation efficiency. Furthermore, the adjustable connection 100 as described above may also solve the problem of difficult installation due to misalignment between the rotor 3 and the hub 2.
In addition, the adjustable connector 100 including the sliding body 110 and the locking sleeve 120 according to the embodiment of the invention may also have the following advantages: the structure is simple and easy to realize; no additional lubrication is required; the circumference of the sliding body 110 is adjustable and self-locking, so that the preload can be adjusted when the sliding body 110 is initially assembled and when the top end of the sliding body 110 is worn after the wind turbine generator system runs for a period of time.
Hereinafter, examples of the adjustable connector 500 according to embodiments of the present invention will be described with reference to fig. 7 to 9.
Fig. 7 is a schematic view of a coupling portion of a hub and a rotor according to another embodiment of the present invention, fig. 8 is a schematic view seen in a direction a1 of fig. 7, and fig. 9 is a schematic view seen in a direction a2 of fig. 7.
As shown in fig. 7 to 9, according to an embodiment of the present invention, the first flange 210 of the hub 2 may be provided with the first coupling flange 220, and the second flange 310 of the rotor 3 may be provided with the second coupling flange 320. Alternatively, the diameter of the first flange 210 may be smaller than the diameter of the second flange 310, but the present invention is not limited thereto.
As shown in fig. 8 and 9, according to an embodiment of the present invention, the adjustable connection member 500 may include a connection bar 510 and rolling members 520 provided at first and second ends of the connection bar 510. The roller 520 may include an outer race 522 fixed to the connecting rod 510 and an inner race 521 rotatable relative to the outer race 522. The inner race 521 of the roller 520 may be fixed to the first and second coupling flanges 220 and 320. Preferably, the diameter of the first connection flange 220 may be smaller than the diameter of the second connection flange 320 for better torque transmission.
In the example of fig. 8 and 9, the first and second ends of the connecting rod 510 are each provided with a rolling member 520, but the present invention is not limited thereto. Alternatively, the roller 520 may be provided only at the first end of the connecting rod 510, or the roller 520 may be provided only at the second end of the connecting rod 510. The end of the connecting rod 510, at which the rolling member 520 is not provided, may be connected to the corresponding connecting flange by a nut or the like.
According to an embodiment of the invention, the adjustable connection 500 may transmit the torque of the hub 2 to the rotor 3, since the adjustable connection 500 is a rigid connection with respect to the torque. Furthermore, since the inner race of the rolling elements 520 is rotatable relative to the outer race, the adjustable connection 500 is a resilient connection with respect to bending moments. Thus, the bending moment of the hub 2 may be transmitted to the rotor 3 or substantially not to the rotor 3 by the rotation between the inner and outer rings of the rolling elements 520. Therefore, the influence of the bending moment on the air gap of the generator can be prevented, the stability of the air gap is ensured, and the power generation efficiency is improved.
According to an embodiment of the invention, the rolling element 520 may be a spherical plain bearing. Because the outer spherical surface of the inner ring of the joint bearing is coated with the composite material, the joint bearing can carry out self-lubrication in the working process, and a lubricating device does not need to be additionally arranged. Also, the structure of the adjustable connector 500 according to an embodiment of the present invention is simple and easy to implement.
As described above, the adjustable connection members 100 and 500 according to the embodiments of the present invention can transmit the torque of the hub 2 to the rotor 3, and can substantially prevent the bending moment of the hub 2 from being transmitted to the rotor 3, thereby preventing the bending moment from affecting the air gap of the generator, contributing to ensuring the stability of the air gap, and improving the power generation efficiency. Furthermore, the adjustable connection 100 as described above can also solve the problem of difficult installation due to misalignment between the rotor 3 and the hub 2.
In addition, the structure of the adjustable connection member 100 and 500 according to the embodiment of the present invention is simple and easy to implement, and an additional lubrication device is not required. In addition, the sliding body according to the first embodiment of the invention is circumferentially adjustable and self-locking, so that the preload adjustment can be performed at the initial assembly and when the top end of the sliding body is worn after the wind turbine generator system has been in operation for a while.
Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (15)
1. A wind power plant, characterized in that it comprises:
a hub (2) rotatably mounted on the support frame (1);
a wind generator (5) comprising a rotor (3) and a stator (4), said stator (4) being fixed to said support frame (1);
an adjustable connection (100) connecting the hub (2) and the rotor (3) to each other, and the adjustable connection (100) being configured to enable the hub (2) to bring the rotor (3) to rotate together with the hub (2) and to allow the hub (2) to be tilted downwards relative to the rotor (3),
wherein the hub (2) is provided with a first flange (210) protruding towards the rotor (3), the rotor (3) is provided with a second flange (310) protruding towards the hub (2), the first flange (210) comprises an extension (211) extending from the first flange (210) towards the second flange (310), the second flange (310) comprises an inwardly recessed recess (311), the extension (211) is inserted into the recess (311), the adjustable connection (100) comprises a slider (110),
the recess part (311) includes second insertion grooves (313) provided on both sides of the recess part (311) in a circumferential direction, a first end of the sliding body (110) is fixed to both ends of the extension part (211) in the circumferential direction, a second end of the sliding body (110) is provided in the second insertion grooves (313), and a second end of the sliding body (110) is rotatable and slidable in an axial direction of the rotor (3), or
The extension part includes second insertion grooves provided on both ends in a circumferential direction of the extension part, a first end of the sliding body (110) is fixed to both sides in the circumferential direction of the recess part (311), a second end of the sliding body (110) is provided in the second insertion grooves, and the second end of the sliding body (110) is rotatable and slidable in an axial direction of the rotor (3).
2. Wind park according to claim 1, wherein the diameters of the first flange (210) and the second flange (310) are identical to each other.
3. Wind park according to claim 1, wherein a first end of the slide body (110) is fixed to the two ends of the extension (211), and a second end of the slide body (110) abuts against a bottom surface of the second insertion slot (313).
4. A wind power plant according to claim 3, wherein said extension portion (211) comprises a protruding member (212) protruding from said two ends of said extension portion (211) towards said two sides of said recess (311), respectively, said protruding member (212) having a first insertion slot (213) cut therein,
the first end (111) of the slider (110) is fastened to the first insertion groove (213), and the second end (112) of the slider (110) has a diameter smaller than the length of the second insertion groove (313) in the axial direction of the rotor (3).
5. Wind park according to claim 1, wherein a first end of the slide body (110) is fixed to the two sides of the recess, and a second end of the slide body (110) abuts against a bottom surface of the second insertion slot.
6. The wind turbine according to claim 5, wherein the recess includes a protrusion protruding from the two sides of the recess toward the two ends of the extension, respectively, the protrusion having a first insertion groove formed thereon,
a first end of the slider is fastened to the first insertion groove, and a diameter of the second end of the slider is smaller than a length of the second insertion groove in an axial direction of the rotor.
7. Wind park according to claim 4 or 6, wherein the adjustable connection (100) further comprises a locking sleeve (120) fitted over the sliding body (110) and the protruding member (212) for locking the sliding body (110) to the protruding member (212).
8. Wind park according to claim 7, wherein the locking sleeve (120) comprises a first portion (121) arranged on the sliding body (110) and a second portion (122) arranged on the projecting member (212), the second portion (122) having a diameter larger than the diameter of the first portion (121).
9. Wind park according to claim 4 or 6, wherein the second end (112) of the slider body (110) is provided with a protection to prevent wear of the second end (112) of the slider body (110).
10. Wind park according to claim 1, wherein the first flange (210) and the second flange (310) are divided in circumferential direction into a plurality of flange segments spaced apart from each other.
11. Wind park according to claim 1, characterized in that the wind park comprises a plurality of adjustable connections (100).
12. A wind power plant, characterized in that it comprises:
a hub (2) rotatably mounted on the support frame (1);
a wind generator (5) comprising a rotor (3) and a stator (4), said stator (4) being fixed to said support frame (1);
an adjustable connection (500) connecting the hub (2) and the rotor (3) to each other, and the adjustable connection (500) being configured to enable the hub (2) to bring the rotor (3) and the hub (2) to rotate together, and to allow the hub (2) to be tilted downwards relative to the rotor (3),
the hub (2) being provided with a first flange (210) protruding towards the rotor (3), the rotor (3) being provided with a second flange (310) protruding towards the hub (2), the adjustable connection (500) connecting the first flange (210) and the second flange (310) to each other,
a first connection flange (220) is provided on the first flange (210), a second connection flange (320) is provided on the second flange (310), the adjustable connection (500) connects the first connection flange (220) and the second connection flange (320) to each other,
the adjustable connection (500) comprises a connecting rod (510) and a rolling element (520) arranged at a first end and/or a second end of the connecting rod (510), the rolling element (520) comprising an outer ring (522) fixed to the connecting rod (510) and an inner ring (521) rotatable relative to the outer ring (522), the inner ring (521) being fixed to the first connecting flange (220) and/or the second connecting flange (320),
the diameter of the first connecting flange (220) is smaller than the diameter of the second connecting flange (320).
13. Wind park according to claim 12, wherein the first and second ends of the connecting rod (510) are provided with the rolling members (520).
14. Wind park according to claim 12 or 13, wherein the rolling members (520) are spherical bearings.
15. Wind park according to claim 12, wherein the wind park comprises a plurality of adjustable connections (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243434.7A CN109751193B (en) | 2019-03-28 | 2019-03-28 | Wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243434.7A CN109751193B (en) | 2019-03-28 | 2019-03-28 | Wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751193A CN109751193A (en) | 2019-05-14 |
| CN109751193B true CN109751193B (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910243434.7A Active CN109751193B (en) | 2019-03-28 | 2019-03-28 | Wind generating set |
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| FR2795785B1 (en) * | 1999-06-30 | 2002-06-28 | Nacam | BALL COUPLING DEVICE FOR TWO SLIDING SHAFTS |
| JP4196630B2 (en) * | 2002-10-02 | 2008-12-17 | 日本精工株式会社 | Telescopic shaft for vehicle steering |
| CN102667149A (en) * | 2009-11-13 | 2012-09-12 | 苏司兰能源有限公司 | Drive unit for a wind turbine |
| WO2011120721A1 (en) * | 2010-03-29 | 2011-10-06 | Alstom Wind, S.L.U. | Wind turbine |
| DK2372150T3 (en) * | 2010-03-29 | 2014-03-17 | Alstom Renovables Espana Sl | Windmill |
| US8786124B2 (en) * | 2010-07-12 | 2014-07-22 | Alstom Wind, S.L.U. | Wind turbine |
| US9194366B2 (en) * | 2011-08-17 | 2015-11-24 | Arnold Ramsland | Horizontal axis wind turbine with ball-and-socket hub |
| CN104343640A (en) * | 2014-10-16 | 2015-02-11 | 温振雄 | Vehicle-mounted wind power generation device |
| CN107795437B (en) * | 2016-08-29 | 2019-05-10 | 江苏金风科技有限公司 | For the control method of rotor rotating device, control device and rotor rotation system |
| CN107605978A (en) * | 2017-09-22 | 2018-01-19 | 镇江颀龙科技有限公司 | A kind of adjustable length shaft coupling |
| CN107740751B (en) * | 2017-11-15 | 2023-12-08 | 宜春学院 | Axial supporting structure of small horizontal axis wind turbine |
| CN108386318B (en) * | 2018-04-28 | 2024-02-06 | 金风科技股份有限公司 | Wind generating set |
| CN109253179A (en) * | 2018-09-21 | 2019-01-22 | 北京金风科创风电设备有限公司 | Rigid coupling and wind generating set |
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2019
- 2019-03-28 CN CN201910243434.7A patent/CN109751193B/en active Active
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Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |