CN218439622U - Semi-direct-drive wind generating set - Google Patents
Semi-direct-drive wind generating set Download PDFInfo
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- CN218439622U CN218439622U CN202222882766.XU CN202222882766U CN218439622U CN 218439622 U CN218439622 U CN 218439622U CN 202222882766 U CN202222882766 U CN 202222882766U CN 218439622 U CN218439622 U CN 218439622U
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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
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Abstract
The utility model relates to a aerogenerator technical field especially relates to a half direct-driven wind generating set. The semi-direct-drive wind generating set comprises a generator, a gear box, a high-frequency grounding band and a conductive assembly, wherein the generator comprises a stator base, a stator winding and a rotor assembly. The gear box includes box and output shaft, and the box links to each other with the stator base, and the output shaft rotates to set up in the box and is connected with rotor subassembly transmission. The box body and the stator base are grounded through high-frequency grounding belts respectively. The output shaft is provided with a plurality of electrically conductive subassemblies along its circumference to make the output shaft switch on with high frequency ground connection area through a plurality of electrically conductive subassemblies respectively. Be provided with a plurality of conductive component along its circumference at the output shaft for the output shaft switches on with high frequency ground connection area respectively through a plurality of conductive component, has increased the ground connection derivation volume of electric current, has reduced the epaxial axle voltage of output, avoids bearing and the flank of tooth on the output shaft to produce the galvanic corrosion, has improved the protection to the output shaft, has reduced the vibration and the noise of gear box.
Description
Technical Field
The utility model relates to a aerogenerator technical field especially relates to a half direct-driven wind generating set.
Background
As shown in fig. 1, the shaft voltage is the potential difference across the output shaft 21 ' of the gearbox 2 ', locally at the output shaft 21 ', and the output shaft 21 ' to ground during operation of the generator 1 '. In a wind generating set, the generator 1 ' is a large-scale and high-speed generator, which generates more high-frequency common mode voltage, when high-frequency discharge occurs, a considerable shaft current is instantaneously generated to act on the surfaces of the bearing 22 ' and the output shaft 21 ', and a plurality of fusion pits are formed on the bearing 22 ' and the tooth surface 23 ', so that the bearing 22 ' and the tooth surface 23 ' are damaged, and vibration and noise are generated.
As shown in fig. 1, a generator 1 'of the semi-direct-drive wind generating set adopts a permanent magnet synchronous motor, and a rotor winding 11' of the generator 1 'is installed on an output shaft 21' of a gear box 2 'through a rotor bracket 12' and is connected by steel-to-steel. The bearings 22 ' are not installed on both sides of the rotor winding 11 ', common mode voltage which can cause the electric corrosion of the bearings 22 ' is transferred to the gear box 2 ', and the bearings 22 ' installed on the output shaft 21 ', the tooth surface 23 ' of the gear box 2 ' close to the generator 1 ' can be damaged due to the electric corrosion.
In the prior art, shaft voltage is mainly reduced through the following scheme that firstly, one side of a rotor bracket 12 'is grounded by adopting a carbon brush 13', and current generated on a rotor winding 11 'is grounded and led out, so that the current transmitted to an output shaft 21' by the rotor winding 11 'is reduced, however, part of current still flows into the output shaft 21', the effect of reducing the shaft voltage is poor, the structure is difficult to maintain, and the use is inconvenient; and secondly, the bearing 22 'of the output shaft 21' adopts an insulated bearing to avoid damage caused by electric corrosion, but an insulating layer of the insulated bearing is easy to damage in the installation and use processes, so that the effective protection effect cannot be achieved. Neither of the above two schemes can effectively suppress the shaft voltage of the output shaft 21'.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a half direct drive wind generating set to reduce the axle voltage of output shaft in the gear box, avoid the epaxial bearing of output and gear teeth face to produce the galvanic corrosion.
To achieve the purpose, the technical proposal adopted by the utility model is that:
a semi-direct drive wind generating set comprising:
a generator comprising a stator base, a stator winding and a rotor assembly;
the gear box comprises a box body and an output shaft, the box body is connected with the stator base, and the output shaft is rotatably arranged in the box body and is in transmission connection with the rotor assembly;
the box body and the stator base are grounded through the high-frequency grounding band respectively; and
and the output shaft is provided with a plurality of conductive assemblies along the circumferential direction of the output shaft, so that the output shaft is respectively conducted with the high-frequency grounding band through the plurality of conductive assemblies.
As a preferred scheme, a mounting hole is formed in the box body, and the output shaft penetrates through the mounting hole;
the conductive assembly comprises conductive blocks, the conductive blocks are distributed along the circumferential direction of the output shaft, one end of each conductive block is connected with the peripheral surface of the output shaft, and the other end of each conductive block is connected with the box body.
Preferably, the conductive block includes:
the flange is coaxially arranged with the mounting hole, and the outer side surface of the flange is connected with the hole wall of the mounting hole; and
and the conductive brush is fixedly connected with the flange and is tightly connected with the peripheral surface of the output shaft in an abutting mode.
Preferably, the conductive assembly further comprises conductive fibers, and the conductive brush is connected with the outer peripheral surface of the output shaft in a propping manner through the conductive fibers.
Preferably, the conductive assembly includes conductive blocks, the conductive blocks are distributed along the circumferential direction of the output shaft, one end of each conductive block is tightly connected with the hole wall of the inner hole of the output shaft, and the other end of each conductive block is grounded through a corresponding high-frequency grounding band.
Preferably, the gearbox further comprises a tubular shaft, the tubular shaft is fixedly arranged in the box body, and the output shaft is rotatably sleeved on the tubular shaft;
the tubular shaft is provided with a shaft hole penetrating through the axial direction of the tubular shaft; the tubular shaft is radially provided with a through hole communicated with the shaft hole, one end of each of the high-frequency grounding bands penetrates through the shaft hole and then is grounded, and the other end of each of the high-frequency grounding bands penetrates through the through hole and then is connected with the corresponding conductive block.
Preferably, the conductive block includes:
the flange is coaxially arranged with the inner hole of the output shaft and fixedly connected with the tubular shaft, and the plurality of high-frequency grounding bands penetrating through the through hole are respectively connected with the corresponding flanges; and
and the conductive brush is fixedly connected with the flange and is abutted against the hole wall of the inner hole of the output shaft.
Preferably, the conductive assembly further comprises conductive fibers, and the conductive brush is connected with the hole wall of the inner hole of the output shaft in a propping manner through the conductive fibers.
As a preferred scheme, the gear box further comprises an inner transparent cover, the inner transparent cover is fixedly sleeved on the tubular shaft, and the output shaft is rotatably sleeved on the inner transparent cover; the flange is fixedly arranged on the inner transparent cover and close to the end face of the rotor assembly.
As a preferred scheme, a first positioning hole is formed in the flange, and a second positioning hole is correspondingly formed in the inner transparent cover;
the conductive assembly further comprises a fastener, and the fastener sequentially penetrates through the first positioning hole and the second positioning hole so as to lock the flange on the inner through cover; and the high-frequency grounding bands penetrating through the through holes are wound on the corresponding fasteners.
The beneficial effects of the utility model are that:
the utility model provides a half direct drive wind generating set, box and stator base are respectively through high frequency grounding area ground connection for the electric current that the rotor subassembly transmitted to the output shaft is derived through box and stator base ground connection respectively, has effectively reduced the axle voltage of output shaft. Meanwhile, the output shaft is provided with the plurality of conductive assemblies along the circumferential direction of the output shaft, so that the output shaft is respectively conducted with the high-frequency grounding band through the plurality of conductive assemblies, a plurality of intensive coupling loops are formed, the grounding derivation amount of current is increased, the shaft voltage on the output shaft is further reduced, electric corrosion of a bearing and a tooth surface on the output shaft is avoided, the protection of the bearing and a gear on the output shaft is improved, and vibration and noise in the running process of the gear box are reduced.
In addition, a plurality of conductive component enclose into annular structure along the circumference of output shaft, and for whole annular structure, a plurality of conductive component enclose into annular structure with split type structure, and the installation of the conductive component of being convenient for is maintained, can increase and decrease conductive component's quantity in a flexible way according to actual demand simultaneously.
Drawings
FIG. 1 is a partial schematic structural diagram of a conventional semi-direct-drive wind turbine generator system;
fig. 2 is a schematic partial structural diagram of a semi-direct-drive wind generating set according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic partial structural diagram of a semi-direct-drive wind turbine generator system according to an embodiment of the present invention;
fig. 5 is a partially enlarged view at B in fig. 4.
The component names and designations in the drawings are as follows:
1', a generator; 11', rotor windings; 12', a rotor support; 13', carbon brushes; 2', a gear box; 21', an output shaft; 22', bearings; 23', tooth flanks;
1. a generator; 11. a stator base; 12. a stator winding; 13. a rotor assembly; 131. a rotor winding; 132. a rotor support;
2. a gear case; 21. a box body; 211. an outer transparent cover; 212. an inner transparent cover; 22. an output shaft; 23. a bearing; 24. a tooth surface; 25. a tubular shaft; 251. a shaft hole; 252. a through hole;
3. a high frequency ground band; 4. a carbon brush; 5. a conductive component; 51. a conductive block; 511. a flange; 512. a conductive brush; 52. a conductive fiber; 53. a fastener.
Detailed Description
In order to make the technical problems, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further explained below by means of specific embodiments in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements relevant to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
As shown in fig. 2, the present embodiment provides a semi-direct drive wind generating set, the semi-direct drive wind generating set includes a generator 1 and a gear box 2, the generator 1 includes a stator base 11, a stator winding 12 and a rotor assembly 13, the gear box 2 includes a box 21 and an output shaft 22, the box 21 is connected to the stator base 11, the output shaft 22 is rotatably disposed in the box 21 and is in transmission connection with the rotor assembly 13.
Specifically, the rotor assembly 13 includes a rotor winding 131 and a rotor bracket 132, and the rotor bracket 132 is connected to the rotor winding 131 and the output shaft 22 in the box 21, respectively, that is, the rotor winding 131 is connected to the output shaft 22 through the rotor bracket 132 and is connected by steel-to-steel. An output shaft 22 is rotatably mounted in the case 21 through a bearing 23, and gears are provided on the output shaft 22, and tooth surfaces 24 of the gears mesh with gears in the gear case 2.
In order to reduce the shaft voltage of the output shaft 22, the semi-direct drive wind turbine generator system further comprises a high-frequency grounding belt 3, and the box body 21 and the stator base 11 are grounded through the high-frequency grounding belt 3 respectively. Specifically, one side (the non-drive end of the generator 1) of the rotor bracket 132 is grounded with a carbon brush 4 and a high-frequency ground strip 3. Meanwhile, the current generated by the rotor winding 131 is transmitted to the output shaft 22 and then is led out through the box body 21, the stator base 11 and the high-frequency grounding band 3 in a grounding mode, and the current flowing to the output shaft 22 is reduced, namely the shaft current is reduced. The high frequency ground strap 3 improves the amount of current ground lead-out and further reduces the shaft current in the area of the output shaft 22. In addition, the bearing 23 on the output shaft 22 may be an insulating bearing to avoid damage due to galvanic corrosion. The high-frequency grounding band 3 is a mature product and can be obtained by outsourcing.
At present, even after the carbon brush 4 is grounded through the high-frequency grounding band 3, part of current is still inevitably transmitted to the area of the output shaft 22, and the shaft current on the output shaft 22 is difficult to be effectively reduced. And the insulating layer of the insulating bearing 23 is easy to damage in the installation and use processes, so that the insulating bearing cannot play a role in protection.
In order to solve the above problem, as shown in fig. 3, the semi-direct drive wind generating set further includes a conductive component 5, and the output shaft 22 is provided with a plurality of conductive components 5 along the circumferential direction thereof, so that the output shaft 22 is respectively conducted with the box body 21 through the plurality of conductive components 5. The output shaft 22 is provided with a plurality of conductive assemblies 5 along the circumferential direction thereof, so that the output shaft 22 is grounded through the high-frequency grounding band 3 after being conducted with the box body 21 through the conductive assemblies 5. The output shaft 22 is respectively communicated with the high-frequency grounding band 3 through the plurality of conductive components 5, so that a plurality of dense coupling loops are formed, the grounding derivation amount of current is increased, the shaft voltage on the output shaft 22 is further reduced, the bearing 23 and the tooth surface 24 on the output shaft 22 are prevented from generating electric corrosion, the protection of the bearing 23 and the gear on the output shaft 22 is improved, and the vibration and noise in the operation process of the gear box 2 are reduced.
In addition, a plurality of conductive component 5 enclose into the annular structure along output shaft 22's circumference, and for whole annular structure, a plurality of conductive component 5 enclose into an annular with split type structure, the installation of the conductive component 5 of being convenient for is maintained, can increase and decrease the quantity of conductive component 5 according to the actual demand is nimble simultaneously.
As shown in fig. 3, a mounting hole is formed in the case 21, and the output shaft 22 is inserted into the mounting hole. The conductive member 5 includes conductive blocks 51, and a plurality of the conductive blocks 51 are distributed along the circumferential direction of the output shaft 22, and one end thereof is connected to the outer circumferential surface of the output shaft 22, and the other end thereof is connected to the case 21.
Specifically, the box body 21 includes a main box body and an outer transparent cover 211, the main box body is provided with a first hole, and the transparent cover is provided with a second hole. The first hole and the second hole are coaxial and communicated to form a mounting hole. The output shaft 22 sequentially penetrates through the first hole and the second hole, and the output shaft 22 is rotatably mounted in the first hole through a bearing 23. The main box body is fixedly connected with the outer transparent cover 211 through bolts, so that the main box body is in conductive connection with the outer transparent cover 211.
In the present embodiment, a part of the current generated by the rotor assembly 13 of the generator 1 is grounded through the carbon brushes 4 of the rotor bracket 132 and the high-frequency grounding strap 3, and another part of the current passes through the rotor bracket 132, the output shaft 22, the conductive assembly 5, the outer transparent cover 211, the box 21 and the stator base 11 and then is grounded through the high-frequency grounding strap 3.
The conductive block 51 of the present embodiment includes a flange 511 and a conductive brush 512, the flange 511 is disposed coaxially with the mounting hole, and the outer side surface of the flange 511 is connected to the wall of the mounting hole. The conductive brush 512 is fixedly connected to the flange 511 and is tightly connected to the outer peripheral surface of the output shaft 22. Specifically, the conductive block 51 is installed in the second hole, so that the current transmitted from the rotor holder 132 directly flows to the outer transparent cover 211 and the main case after passing through the conductive block 51, and the current flowing to the area of the output shaft 22 in the first hole is reduced as much as possible, thereby effectively suppressing or isolating the common mode voltage generated by the generator 1 outside the main case of the gear box 2.
Specifically, the flange 511 is arc-shaped, and one side of the flange 511 can be completely attached to the hole wall of the second hole of the outer transparent cover 211, so as to achieve good conduction. The conductive members 5 of the present embodiment are typically four, five or six, and the plurality of flanges 511 collectively define an annular configuration. Of course, the number of the conductive members 5 can be flexibly adjusted according to actual conditions, i.e. the number of the conductive blocks 51 can be increased or decreased.
Further, the conductive assembly 5 further includes conductive fibers 52, and the conductive brush 512 is connected to the outer peripheral surface of the output shaft 22 via the conductive fibers 52. The conductive fibers 52 ensure that the conductive brush 512 is reliably conductively connected to the outer peripheral surface of the output shaft 22, thereby enhancing the conductive effect and preventing the conductive brush 512 from being worn.
Example two
As shown in fig. 4, the present embodiment provides a semi-direct-drive wind turbine generator system, and the overall structure of the semi-direct-drive wind turbine generator system provided in the present embodiment is substantially the same as that of the first embodiment, and the main difference is that: the conductive member 5 is disposed at different positions.
Specifically, the conductive assembly 5 includes conductive blocks 51, the conductive blocks 51 are distributed along the circumferential direction of the output shaft 22, one end of each conductive block 51 is connected to the hole wall of the inner hole of the output shaft 22, and the other end of each conductive block is grounded through the corresponding high-frequency grounding band 3. The output shaft 22 is respectively communicated with the high-frequency grounding belt 3 through the plurality of conductive components 5, so that a plurality of dense coupling loops are formed, the grounding derivation amount of current is increased, the shaft voltage on the output shaft 22 is further reduced, the electric corrosion of the bearing 23 on the output shaft 22 and the tooth surface 24 of the gear is avoided, the protection of the bearing 23 and the gear on the output shaft 22 is improved, and the vibration and noise in the operation process of the gear box 2 are reduced.
In the present embodiment, a part of the current generated by the rotor winding 131 is grounded through the carbon brushes 4 of the rotor bracket 132 and the high-frequency grounding strap 3, and another part of the current passes through the rotor bracket 132, the output shaft 22, and the conductive assembly 5 and then is directly grounded through the high-frequency grounding strap 3.
In addition, a plurality of conductive component 5 enclose into the annular structure along output shaft 22's circumference, and for whole annular structure, a plurality of conductive component 5 enclose into an annular with split type structure, and the installation of the conductive component 5 of being convenient for is maintained, can increase and decrease the quantity of conductive component 5 according to actual demand is nimble simultaneously.
As shown in fig. 4 and 5, the gear box 2 further includes a tube shaft 25, the tube shaft 25 is fixedly disposed in the box body 21, and the output shaft 22 is rotatably sleeved on the tube shaft 25. The pipe shaft 25 has a shaft hole 251 passing through the axial direction thereof, the pipe shaft 25 is provided with a through hole 252 communicating with the shaft hole 251 along the radial direction thereof, one end of each of the plurality of high frequency grounding strips 3 passes through the shaft hole 251 and then is grounded, and the other end passes through the through hole 252 and then is connected to the corresponding conductive block 51.
The conductive members 5 of the present embodiment are typically four, five or six, and the plurality of flanges 511 collectively define an annular configuration. Of course, the number of the conductive members 5 can be flexibly adjusted according to actual conditions, i.e. the number of the conductive blocks 51 can be flexibly increased or decreased. The through holes 252 are the same in number as the conductive blocks 51 and are arranged to face each other. Similarly, the shaft hole 251 has the same number of high-frequency ground strips 3 as the through holes 252.
It should be noted that the high-frequency grounding strap 3 in the shaft hole 251 can be grounded through two openings of the shaft hole 251, and the arrangement track of the high-frequency grounding strap 3 can be flexibly adjusted, which is not limited herein.
The conductive block 51 of the present embodiment includes a flange 511 and a conductive brush 512, the flange 511 is disposed coaxially with the inner hole of the output shaft 22 and fixedly connected to the pipe shaft 25, and the plurality of high-frequency ground strips 3 passing through the through holes 252 are connected to the corresponding flanges 511, respectively. The conductive brush 512 is fixedly connected with the flange 511 and is abutted against the hole wall of the inner hole of the output shaft 22.
Further, the conductive assembly 5 further includes conductive fibers 52, and the conductive brush 512 is tightly connected with the hole wall of the inner hole of the output shaft 22 through the conductive fibers 52. The conductive fibers 52 can ensure that the conductive brush 512 is reliably connected with the hole wall of the inner hole of the output shaft 22, so that the conduction effect is enhanced, and meanwhile, the conductive brush 512 can be prevented from being worn.
As shown in fig. 5, the gear box 2 further includes an inner transparent cover 212, the inner transparent cover 212 is fixedly sleeved on the tubular shaft 25, and the output shaft 22 is rotatably sleeved on the inner transparent cover 212. The flange 511 is fixedly disposed on the inner transparent cover 212 near the end face of the rotor assembly 13.
Specifically, the flange 511 is provided with a first positioning hole, and the inner transparent cover 212 is correspondingly provided with a second positioning hole. The conductive member 5 further includes a fastening member 53, and the fastening member 53 is sequentially inserted into the first positioning hole and the second positioning hole to lock the flange 511 on the inner transparent cover 212. The plurality of high-frequency ground straps 3 passing through the through holes 252 are wound around the corresponding fasteners 53.
The fastening member 53 of this embodiment is a bolt, and the bolt is in threaded connection with the second positioning hole. By winding the high-frequency grounding band 3 on the bolt, the flange 511 can be fixedly mounted on the inner transparent cover 212 when the bolt is tightened, and the high-frequency grounding band 3 can be locked on the side surface of the flange 511, so that the flange 511 and the high-frequency grounding band 3 are reliably and stably connected.
The above embodiments have only been explained the basic principle and characteristics of the present invention, the present invention is not limited by the above embodiments, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and modifications all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A semi-direct drive wind generating set, comprising:
a generator (1) comprising a stator base (11), a stator winding (12) and a rotor assembly (13);
the gear box (2) comprises a box body (21) and an output shaft (22), the box body (21) is connected with the stator base (11), and the output shaft (22) is rotatably arranged in the box body (21) and is in transmission connection with the rotor assembly (13);
the box body (21) and the stator base (11) are grounded through the high-frequency grounding band (3) respectively; and
the output shaft (22) is provided with a plurality of the conductive assemblies (5) along the circumferential direction of the output shaft (5), so that the output shaft (22) is conducted with the high-frequency grounding band (3) through the plurality of the conductive assemblies (5) respectively.
2. The semi-direct drive wind generating set according to claim 1, wherein a mounting hole is formed in the box body (21), and the output shaft (22) is arranged in the mounting hole in a penetrating manner;
the conductive assembly (5) comprises conductive blocks (51), the conductive blocks (51) are distributed along the circumferential direction of the output shaft (22), one end of each conductive block is connected with the outer circumferential surface of the output shaft (22), and the other end of each conductive block is connected with the box body (21).
3. A semi-direct drive wind turbine generator set according to claim 2, wherein the conductive block (51) comprises:
the flange (511) is coaxially arranged with the mounting hole, and the outer side face of the flange (511) is connected with the hole wall of the mounting hole; and
and the conductive brush (512) is fixedly connected with the flange (511) and is tightly connected with the peripheral surface of the output shaft (22).
4. The semi-direct drive wind generating set according to claim 3, wherein the conductive assembly (5) further comprises conductive fibers (52), and the conductive brush (512) is connected with the outer circumferential surface of the output shaft (22) in a butting mode through the conductive fibers (52).
5. The semi-direct drive wind generating set according to claim 1, wherein the conductive assembly (5) comprises conductive blocks (51), the conductive blocks (51) are distributed along the circumferential direction of the output shaft (22), one end of each conductive block (51) is connected with the hole wall of the inner hole of the output shaft (22) in a propping manner, and the other ends of the conductive blocks are grounded through corresponding high-frequency grounding bands (3).
6. The semi-direct drive wind generating set according to claim 5, wherein the gear box (2) further comprises a tubular shaft (25), the tubular shaft (25) is fixedly arranged in the box body (21), and the output shaft (22) is rotatably sleeved on the tubular shaft (25);
the pipe shaft (25) has a shaft hole (251) penetrating through the axial direction thereof; the tube shaft (25) is provided with a through hole (252) communicated with the shaft hole (251) along the radial direction, one end of each high-frequency grounding band (3) penetrates through the shaft hole (251) and then is grounded, and the other end of each high-frequency grounding band penetrates through the through hole (252) and then is respectively connected with the corresponding conductive block (51).
7. A semi-direct drive wind turbine generator set according to claim 6, wherein the conductive block (51) comprises:
the flange (511) is coaxially arranged with the inner hole of the output shaft (22) and fixedly connected with the tubular shaft (25), and the high-frequency grounding bands (3) penetrating through the through hole (252) are respectively connected with the corresponding flanges (511); and
and the conductive brush (512) is fixedly connected with the flange (511) and is abutted against the hole wall of the inner hole of the output shaft (22).
8. The semi-direct drive wind generating set according to claim 7, characterized in that the conductive component (5) further comprises conductive fibers (52), and the conductive brush (512) is connected with the hole wall of the inner hole of the output shaft (22) in a butting manner through the conductive fibers (52).
9. The semi-direct drive wind generating set according to claim 7, wherein the gear box (2) further comprises an inner transparent cover (212), the inner transparent cover (212) is fixedly sleeved on the tubular shaft (25), and the output shaft (22) is rotatably sleeved on the inner transparent cover (212); the flange (511) is fixedly arranged on the inner transparent cover (212) and close to the end face of the rotor component (13).
10. The semi-direct drive wind generating set according to claim 9, wherein the flange (511) is provided with a first positioning hole, and the inner transparent cover (212) is correspondingly provided with a second positioning hole;
the conductive assembly (5) further comprises a fastener (53), and the fastener (53) sequentially penetrates through the first positioning hole and the second positioning hole so as to lock the flange (511) on the inner transparent cover (212); the high-frequency grounding bands (3) passing through the through holes (252) are wound on the corresponding fasteners (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882766.XU CN218439622U (en) | 2022-10-31 | 2022-10-31 | Semi-direct-drive wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222882766.XU CN218439622U (en) | 2022-10-31 | 2022-10-31 | Semi-direct-drive wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN218439622U true CN218439622U (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222882766.XU Active CN218439622U (en) | 2022-10-31 | 2022-10-31 | Semi-direct-drive wind generating set |
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| Country | Link |
|---|---|
| CN (1) | CN218439622U (en) |
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2022
- 2022-10-31 CN CN202222882766.XU patent/CN218439622U/en active Active
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