CN117154483A - Yaw current collecting device and wind generating set - Google Patents
Yaw current collecting device and wind generating set Download PDFInfo
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- CN117154483A CN117154483A CN202310989625.4A CN202310989625A CN117154483A CN 117154483 A CN117154483 A CN 117154483A CN 202310989625 A CN202310989625 A CN 202310989625A CN 117154483 A CN117154483 A CN 117154483A
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- 230000007246 mechanism Effects 0.000 claims abstract description 144
- 238000010248 power generation Methods 0.000 claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 72
- 229910052802 copper Inorganic materials 0.000 claims description 72
- 239000010949 copper Substances 0.000 claims description 72
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052737 gold Inorganic materials 0.000 claims description 7
- 239000010931 gold Substances 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 238000004378 air conditioning Methods 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 33
- 238000009434 installation Methods 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 description 13
- 238000011161 development Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- 230000015556 catabolic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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- 238000012546 transfer Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a yaw current collecting device and a wind generating set, wherein the yaw current collecting device comprises a base body, a stator mechanism, a rotor mechanism and an elastic component, the base body comprises a bottom plate and a rotating column, the rotating column is rotatably arranged on the bottom plate in a penetrating mode, the stator mechanism is arranged on the bottom plate, the stator mechanism is provided with a conductive surface, the rotor mechanism is provided with an electric shock surface, the rotor mechanism is sleeved on the rotating column so that the electric shock surface is in abutting connection with the conductive surface, one end of the elastic component is connected with the rotating column, and the other end of the elastic component is elastically connected with one side, facing away from the stator mechanism, of the rotor mechanism so that the electric shock surface is in abutting connection with the conductive surface. The invention aims to provide the yaw current collecting device, wherein the electric shock surface of the rotor mechanism is always in close contact with the conductive surface of the stator mechanism, the yaw current collecting device effectively ensures continuous power generation, occupies small space, can realize high-power transmission, and has the advantages of simple structure, low failure rate and convenience in installation and maintenance.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a yaw collecting device and a wind generating set using the yaw collecting device.
Background
The current country is greatly pushing green development, the development goal of double carbon is more and more urgent, and wind power generation is being built at a high speed. The electric energy of the wind power generator in the wind power generation equipment needs to be transmitted to the ground from the generator, and the wind power generator needs to continuously perform yaw motion to align with the wind direction in order to ensure the maximum power generation efficiency, so that the wind power cabin can rotate relative to the tower, and at the moment, the wind power cabin needs to be arranged between the rotating wind power cabin and the fixed tower. In the running process of the fan, the fan is required to yaw to generate power with maximum efficiency due to the change of the wind direction, and at the moment, dynamic transmission of current is required to be realized through the collector ring structure under the condition that the circuit of the turning part is connected with the circuit of the fixed part.
In the related art, wind power generators generally use a twisted cable or a carbon brush slip ring structure for power transmission. In the transmission process by adopting the twisted cable, the twisting limit of the twisted cable is three and four circles, and the generator is stopped to untwist the cable after the limit is reached, so that the power generation time is seriously influenced, and the cost of the twisted cable is relatively high; in the transmission process by adopting the carbon brush slip ring mode, the space of the wind tower of the generator is small, the structure of the carbon brush slip ring is large in size, the structure of the carbon brush slip ring is required to be reduced as far as possible to match the small space, the transmission power is limited, the heat productivity is large, the failure rate is high, and the installation and maintenance are inconvenient. Meanwhile, the contact of the conductive surfaces in the rotation transmission process often cannot be kept close all the time, so that poor rotation transmission is caused.
Disclosure of Invention
The invention mainly aims to provide a yaw collecting device and a wind generating set, and aims to provide the yaw collecting device, wherein an electric shock surface of a rotor mechanism is always in close contact with a conductive surface of a stator mechanism, the yaw collecting device effectively ensures continuous power generation, occupies small space, can realize high-power transmission, and is simple in structure, low in failure rate and convenient to install and maintain.
To achieve the above object, the present invention provides a yaw collecting device including:
the base body comprises a bottom plate and a rotating column, and the rotating column is rotatably arranged on the bottom plate in a penetrating manner;
the stator mechanism is arranged on the bottom plate and is provided with a conductive surface;
the rotor mechanism is provided with an electric shock surface, and the rotor mechanism is sleeved on the rotating column so as to enable the electric shock surface to be in contact conduction with the conductive surface; a kind of electronic device with high-pressure air-conditioning system
And one end of the elastic component is connected with the rotating column, and the other end of the elastic component is elastically connected with one side of the rotor mechanism, which is opposite to the stator mechanism, so that the electric shock surface is in close contact with the conductive surface.
In an embodiment, the rotating column is provided with a limiting table, and the elastic component is sleeved on the rotating column and is elastically limited between the limiting table and the rotor mechanism.
In an embodiment, a first groove is formed in one side, facing the rotor mechanism, of the limiting table, a second groove is formed in one side, facing away from the stator mechanism, of the rotor mechanism, and two ends of the elastic component are limited in the first groove and the second groove respectively.
In one embodiment, the rotor mechanism is provided with a mounting hole, one of the outer wall of the rotating column and the hole wall of the mounting hole is provided with a positioning boss, and the other one of the outer wall of the rotating column and the hole wall of the mounting hole is provided with a positioning groove;
the rotor mechanism is sleeved on the rotating column through the mounting hole, and the positioning boss is limited in the positioning groove.
In an embodiment, the outer wall of the rotating column is convexly provided with the positioning boss, the positioning boss is arranged in an extending manner along the axial direction of the rotating column, and the hole wall of the mounting hole is concavely provided with the positioning groove;
the positioning bosses are arranged at intervals along the circumferential direction of the outer wall of the rotating column, the positioning grooves are arranged at intervals, and the positioning bosses are arranged in one-to-one correspondence with the positioning grooves.
In an embodiment, the stator mechanism includes a plurality of stator pieces and a plurality of supporting pieces, the plurality of stator pieces are arranged at intervals along the axial direction of the rotating column, one stator piece is arranged on the bottom plate, two adjacent stator pieces are connected through the supporting pieces, and each stator piece is provided with the conductive surface;
the rotor mechanism comprises a plurality of rotor pieces, the rotor pieces are sleeved on the rotating column and are arranged at intervals along the axial direction of the rotating column, each rotor piece is provided with an electric shock surface, and each rotor piece is correspondingly and in abutting connection with one stator piece so as to enable the electric shock surface to be in abutting connection with the conductive surface;
the elastic component comprises a plurality of elastic pieces, and each elastic piece is elastically connected with one rotor piece.
In an embodiment, each stator piece includes a fixing plate and a first conductive disc, the fixing plate is provided with an avoidance hole, the first conductive disc is connected to the fixing plate and is arranged around the avoidance hole, and a side of the first conductive disc, which is away from the fixing plate, is provided with the conductive surface;
each rotor piece comprises a mounting plate and a second conductive disc, wherein the mounting plate is provided with a mounting hole, the mounting plate is sleeved on the rotating column through the mounting hole, the second conductive disc is arranged on one side of the mounting plate facing the first conductive disc, one side of the second conductive disc facing away from the mounting plate is provided with an electric shock surface, and each elastic piece is elastically connected with one side of the mounting plate facing away from the second conductive disc.
In an embodiment, a receiving groove is formed on a side of the first conductive plate facing away from the fixing plate, the stator piece further includes a spring contact finger, the spring contact finger is disposed in the receiving groove, and the conductive surface is formed on a side of the spring contact finger facing away from a bottom wall of the receiving groove.
In an embodiment, a protruding portion is disposed on a side of the second conductive plate, facing away from the mounting plate, and the protruding portion forms the electric shock surface on a side of the rotor member, and a part of the protruding portion extends into the accommodating groove, so that the protruding portion abuts against the spring contact finger;
and/or the accommodating groove is filled with a lubricating medium;
and/or the first conductive disc is made of copper, copper alloy, aluminum alloy, graphite, silver and gold conductors;
and/or the second conductive disc is made of copper, copper alloy, aluminum alloy, graphite, silver and gold conductors;
and/or, the fixing plate is provided with a first limit groove adjacent to the avoidance hole, and the first conductive disc is accommodated in and limited in the first limit groove;
and/or the periphery of the mounting plate is provided with a second limit groove, and the second conductive plate is accommodated in and limited in the second limit groove;
And/or, the fixing plate is an insulating plate, and the mounting plate is an insulating plate;
and/or the elastic piece is a spring.
In an embodiment, the accommodating groove surrounds the avoidance hole to form a plurality of ring grooves, the ring grooves are arranged at intervals along the radial direction of the rotating column, the spring contact fingers comprise a plurality of spring contact fingers, and each spring contact finger is arranged in one ring groove;
or, the accommodating grooves are arranged at intervals around the avoidance holes, the spring contact fingers are arranged in a plurality, and each spring contact finger is arranged in one accommodating groove;
or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, and each accommodating groove extends along the peripheral direction of the avoidance hole;
or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, and each accommodating groove extends along the radial direction of the rotating column;
Or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, the plurality of accommodating grooves are arranged at intervals around the avoidance holes so as to form an annular structure, the annular structure comprises a plurality of annular structures, and the plurality of annular structures are arranged at intervals along the radial direction of the rotating column;
or, the holding groove includes a plurality of, and is a plurality of the holding groove encircles dodge the hole interval sets up, the spring touch is pointed including a plurality ofly, every the spring touch is pointed to locate one in the holding groove, a plurality of the holding groove encircles dodge the hole interval sets up, so as to form the annular structure, the annular structure includes a plurality of, a plurality of the annular structure is followed the radial direction interval setting of rotation post, follows the radial direction of rotation post, adjacent two in the annular structure the holding groove is dislocation set or sets up relatively.
In an embodiment, the stator mechanism further includes a first copper bar, the fixing plate is further provided with a fixing groove, the fixing groove extends along a radial direction of the rotating column and penetrates through the fixing plate, the first copper bar is disposed in the fixing groove, one end of the first copper bar is connected with the first conductive disc, and the other end of the first copper bar is connected with an external cable;
The rotor mechanism further comprises a second copper bar, the mounting plate is provided with a through hole, one end of the second copper bar penetrates through the through hole to be connected with the second conductive disc, and the other end of the second copper bar is used for being connected with an external cable.
In an embodiment, the plurality of fixing grooves are arranged at intervals along the periphery of the first conductive disc, the plurality of first copper bars are arranged, and the first copper bars are arranged in one-to-one correspondence with the fixing grooves;
and/or the through holes are formed in a plurality, the through holes are arranged at intervals along the peripheral direction of the rotating column, the second copper bars are formed in a plurality, and the second copper bars are arranged in one-to-one correspondence with the through holes;
and/or, each mounting plate is also provided with a via hole corresponding to the second copper bar, and one end of the second copper bar, which is far away from the second conductive disc, sequentially penetrates through the avoidance hole and the via hole and extends along the axial direction of the rotating column.
The invention also proposes a wind power generator set comprising:
a tower;
the engine room is rotationally connected with the tower, and is provided with a generator; a kind of electronic device with high-pressure air-conditioning system
Above-mentioned yaw current collector, yaw current collector's rotor mechanism and/or slewing column are located the cabin, rotor mechanism pass through the cable with the generator links to each other, yaw current collector's stator mechanism and/or bottom plate with the tower section of thick bamboo links to each other.
According to the yaw current collecting device, the substrate is arranged to be the bottom plate and the rotating column, so that the rotating column rotates to penetrate through the bottom plate, the stator mechanism is arranged on the bottom plate, the rotor mechanism is sleeved on the rotating column, meanwhile, the stator mechanism is provided with the conducting surface, the rotor mechanism is provided with the electric shock surface, the rotor mechanism is relatively attached to the stator mechanism, the electric shock surface is in abutting connection with the conducting surface, and therefore when the rotating column rotates relative to the bottom plate, the rotor mechanism and the stator mechanism rotate relatively or rotate, and meanwhile, the rotor mechanism is in abutting connection with the conducting surface through the electric shock surface, so that dynamic power transmission is realized; simultaneously, through setting up elastic component for elastic component's one end is connected with the pivoted post, and elastic component's the other end and one side elastic connection of rotor mechanism dorsad stator mechanism, so available elastic component provides pretightning force to rotor mechanism to ensure to electrocute face and electrically conductive face and keep hugging closely the butt all the time, so can effectively guarantee to last electricity generation. The yaw current collecting device provided by the invention not only occupies small space, can realize high-power transmission, but also has the advantages of simple structure, low failure rate and convenience in installation and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a yaw collection device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a yaw collection device according to another embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a yaw collection device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an assembled structure of a stator member, a rotor member and an elastic member according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of an assembled part of a stator member, a rotor member and an elastic member according to an embodiment of the present invention;
FIG. 6 is a schematic view of a substrate according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a stator member according to an embodiment of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The current country is greatly pushing green development, the development goal of double carbon is more and more urgent, and wind power generation is being built at a high speed. The electric energy of the wind power generator in the wind power generation equipment needs to be transmitted to the ground from the generator, and the wind power generator needs to continuously perform yaw motion to align with the wind direction in order to ensure the maximum power generation efficiency, so that the wind power cabin can rotate relative to the tower, and at the moment, the wind power cabin needs to be arranged between the rotating wind power cabin and the fixed tower. In the running process of the fan, the fan is required to yaw to generate power with maximum efficiency due to the change of the wind direction, and at the moment, dynamic transmission of current is required to be realized through the collector ring structure under the condition that the circuit of the turning part is connected with the circuit of the fixed part.
At present, the collector ring structure applied to the fan is often complicated in structure, huge in size and high in maintenance cost, axial positioning cannot be realized between a rotor mechanism and a stator mechanism of the collector ring structure, disassembly is inconvenient, and maintenance is difficult. Meanwhile, the collector ring structure realizes dynamic transmission of current through relative rotation of conductive media which are in contact with each other, such as the carbon brush is in rotary contact with metal or the carbon brush is in rotary contact with the carbon brush, but due to long-time rotary operation of the wind power generator, more heat is generated due to long-time friction of the two conductive media which are in contact with each other, and the overall safety and reliability of the collector ring structure are reduced along with the passing of large current.
In addition, besides a large current line output by the fan, a plurality of control lines and power transmission lines are connected between the tower bottom and the tower top fan, and the slip ring technology in the related technology cannot meet the requirement that all lines are connected through slip rings, and after the fan operates for a period of time, the fan is required to be stopped for cable disconnection so as to avoid cable twist-off. Meanwhile, the conductive slip ring structure is complex in structure, easy to wear, unstable enough, difficult to install and overhaul or not suitable for the use condition of large current.
In the related art, wind power generators generally use a twisted cable or a carbon brush slip ring structure for power transmission. In the transmission process by adopting the twisted cable, the twisting limit of the twisted cable is three and four circles, and the generator is stopped to untwist the cable after the limit is reached, so that the power generation time is seriously influenced, and the cost of the twisted cable is relatively high; in the transmission process by adopting the carbon brush slip ring mode, the space of the wind tower of the generator is small, the structure of the carbon brush slip ring is large in size, the structure of the carbon brush slip ring is required to be reduced as far as possible to match the small space, the transmission power is limited, the heat productivity is large, the failure rate is high, and the installation and maintenance are inconvenient. Meanwhile, the contact of the conductive surfaces in the rotation transmission process often cannot be kept close all the time, so that poor rotation transmission is caused.
In view of the above, the present application proposes a yaw collecting device 100. It can be appreciated that the yaw collecting device 100 is used for transmitting and collecting the electric power generated by the generator in the wind generating set, and the electric power transmission can be performed by a dynamic abutting manner, i.e. the two electric power transmission mechanisms moving relatively still keep abutting.
The yaw current collecting device 100 is suitable for a fan yaw rotor with slow rotation speed, can bear high current, has a stable structure, and provides a novel conductive slip ring structure with long service life in an extreme environment of the fan. In the working process of the yaw current collecting device 100, the technical problems of low existing efficiency, limited transmission power, high failure rate and the like of a fan can be solved; meanwhile, the method provides high-efficiency, stable and effective guarantee for subsequent operation and maintenance. And the yawing collector 100 can conduct larger current, so that the power generation capacity can be improved greatly when the wind driven generator is newly designed, and larger promotion and contribution can be made to wind power generation construction and development.
Referring to fig. 1 to 7, in an embodiment of the application, the yaw current collector 100 includes a base 1, a stator mechanism 2, a rotor mechanism 3 and an elastic component 4, wherein the base 1 includes a bottom plate 11 and a rotating column 12, the rotating column 12 rotates and penetrates through the bottom plate 11, the stator mechanism 2 is disposed on the bottom plate 11, the stator mechanism 2 is provided with a conductive surface, the rotor mechanism 3 is provided with an electric shock surface, the rotor mechanism 3 is sleeved on the rotating column 12 so as to make the electric shock surface contact with the conductive surface, one end of the elastic component 4 is connected with the rotating column 12, and the other end of the elastic component 4 is elastically connected with one side of the rotor mechanism 3 facing away from the stator mechanism 2 so as to make the electric shock surface contact with the conductive surface in a close contact manner.
In this embodiment, the yaw collecting device 100 is applied to a wind generating set, and the rotor mechanism 3 of the yaw collecting device 100 is connected with the yaw mechanism of the fan through a cable and rotates along with the yaw mechanism, and the stator mechanism 2 is fixedly connected to the tower of the fan, so that the stator mechanism 2 is a static mechanism. The conductive surface of the stator assembly 13 in the stator mechanism 2 is contacted and abutted with the electric shock surface of the rotor mechanism 3, so that the conductive surface and the electric shock surface are always kept or are in an abutting state when the rotor mechanism 3 rotates or rotates relative to the stator mechanism 2, and the rotor mechanism 3 and the stator mechanism 2 are conductive.
It will be appreciated that by providing the base 1 and providing the base 1 as two parts, namely a base plate 11 and a rotating post 12, the rotating post 12 rotates through the base plate 11 and locates the stator mechanism 2 on the base plate 11, and the rotor mechanism 3 is sleeved on the rotating post 12, such that the base plate 11 and the rotating post 12 which rotate relatively can be used to provide mounting, fixing and supporting foundation for the stator mechanism 2 and the rotor mechanism 3, respectively.
In this embodiment, the stator mechanism 2 is fixedly connected to the fan tower via a base plate 11, and the rotor mechanism 3 is connected to the generator of the nacelle via a rotating column 12 and moves in rotation therewith. As shown in fig. 1 to 3 and 6, the base plate 11 is provided with a fixing hole 111, and the rotation column 12 is inserted into the fixing hole 111. In order to enable the rotating column 12 to be installed and fixed on the bottom plate 11 and ensure the rotation of the rotating column 12 relative to the bottom plate 11, a bearing structure is arranged in the fixing hole 111 of the bottom plate 11, and the rotating column 12 penetrates through an inner ring of the bearing structure, so that the rotating column 12 is rotationally connected with the bottom plate 11 through a bearing.
It will be appreciated that the stator mechanism 2 may be fixedly disposed on the base plate 11, for example, by welding, bonding, or integrally forming, which is not limited herein, and thus may improve connection stability. Of course, in order to facilitate the operations of disassembly and maintenance, the stator mechanism 2 and the base plate 11 may also be detachably connected, for example, by using a snap connection, an insertion fit, a screw connection, a pin connection, or a locking structure, which is not limited herein.
In the present embodiment, the conductive surface of the stator mechanism 2 and the electric shock surface of the rotor mechanism 3 can achieve power transmission and conduction, and the stator mechanism 2 and the rotor mechanism 3 are arranged in a relative rotation or rotation structure, so that power transmission by a dynamic abutting mode is achieved.
Alternatively, the rotating post 12 may be a cylindrical structure. Of course, the rotating post 12 may be configured in other shapes, such as polygonal structures, such as square, triangle, etc., or shaped structures, etc., without limitation. In this embodiment, the rotor mechanism 3 is sleeved on the rotating post 12, and by setting the elastic component 4, one end of the elastic component 4 is connected with the rotating post 12, and the other end of the elastic component 4 is elastically connected with one side of the rotor mechanism 3 opposite to the stator mechanism 2, so that an elastic pretightening force is provided for the rotor mechanism 3 by using the elastic component 4, so that an electric shock surface of the rotor mechanism 3 is always kept in close contact with a conductive surface of the stator mechanism 2, and continuous power generation is ensured.
In the present embodiment, the elastic member 4 is capable of providing an elastic force to the rotor mechanism 3. Alternatively, the elastic component 4 may be a spring, a shrapnel or the like. It can be understood that the rotor mechanism 3 is sleeved on the rotating column 12, the rotor mechanism 3 can move along the axial direction of the rotating column 12, and the rotor mechanism 3 can be limited in the circumferential direction of the rotating column 12, so that the rotor mechanism 3 can rotate along with the rotation of the rotating column 12, and elastic pretightening force can be applied to the rotor mechanism through the elastic component 4.
According to the yaw current collecting device 100, the base body 1 is arranged to be the bottom plate 11 and the rotating column 12, so that the rotating column 12 rotates to penetrate through the bottom plate 11, the stator mechanism 2 is arranged on the bottom plate 11, the rotor mechanism 3 is sleeved on the rotating column 12, meanwhile, the stator mechanism 2 is provided with the conducting surface, the rotor mechanism 3 is provided with the electric shock surface, the rotor mechanism 3 is relatively attached to the stator mechanism 2, the electric shock surface is in contact conduction with the conducting surface, when the rotating column 12 rotates relative to the bottom plate 11, the relative rotation or rotation of the rotor mechanism 3 and the stator mechanism 2 is realized, and meanwhile, the dynamic power transmission is realized through the contact conduction of the electric shock surface and the conducting surface; simultaneously, through setting up elastic component 4 for elastic component 4's one end is connected with the pivoted post 12, and elastic component 4's the other end and the one side elastic connection of rotor mechanism 3 back to stator mechanism 2, so available elastic component 4 provides pretightning force to rotor mechanism 3 to ensure that electric shock face and conducting surface remain hugging closely throughout and butt, so can effectively guarantee to last electricity generation. The yaw collecting device 100 not only occupies small space, can realize high-power transmission, but also has the advantages of simple structure, low failure rate and convenient installation and maintenance.
In order to improve the installation stability of the elastic component 4 and realize that the elastic pre-tightening force provided by the elastic component 4 to the rotor mechanism 3 is more balanced, in an embodiment, the rotating column 12 is provided with a limiting table 121, and the elastic component 4 is sleeved on the rotating column 12 and elastically limited between the limiting table 121 and the rotor mechanism 3.
In this embodiment, as shown in fig. 2, 3 and 6, by arranging the limiting table 121 on the rotating column 12 and sleeving the elastic component 4 on the rotating column 12, the elastic component 4 is elastically limited between the limiting table 121 and the rotor mechanism 3, so that the rotating column 12 can be utilized to provide guiding limitation for the elastic component 4, and the limiting table 121 and the rotor mechanism 3 can be utilized to provide installation fixation for the elastic component 4.
In an embodiment, as shown in fig. 3 and 5, a first groove 123 is formed on a side of the limiting table 121 facing the rotor mechanism 3, a second groove 3113 is formed on a side of the rotor mechanism 3 facing away from the stator mechanism 2, and two ends of the elastic component 4 are respectively limited in the first groove 123 and the second groove 3113. It can be appreciated that the first groove 123 and the second groove 3113 realize limit mounting to both ends of the elastic component 4, and further promote mounting stability.
In order to ensure that the rotor mechanism 3 is circumferentially limited with respect to the rotor column 12, it is axially displaceable. In one embodiment, the rotor mechanism 3 is provided with a mounting hole 3111, one of the outer wall of the rotary column 12 and the hole wall of the mounting hole 3111 is provided with a positioning boss 122, and the other is provided with a positioning groove 3114; the rotor mechanism 3 is sleeved on the rotating column 12 through the mounting hole 3111, and the positioning boss 122 is limited in the positioning groove 3114.
In the present embodiment, as shown in fig. 5 and 6, the outer wall of the rotary post 12 is convexly provided with a positioning boss 122, the positioning boss 122 is disposed to extend in the axial direction of the rotary post 12, and the hole wall of the mounting hole 3111 is concavely provided with a positioning groove 3114. It is understood that the positioning boss 122 may have a rib, a protrusion, or a bead. The positioning boss 122 may be a bar-shaped or linear projection structure extending in the axial direction of the rotation column 12. Of course, in other embodiments, the positioning boss 122 includes a plurality of positioning bosses 122 spaced along the axial direction of the rotating post 12, which is not limited herein.
In one embodiment, as shown in fig. 6, the positioning boss 122 includes a plurality of positioning bosses 122 spaced along the circumference of the outer wall of the rotary column 12, and the positioning groove 3114 includes a plurality of positioning bosses 122 disposed in one-to-one correspondence with the positioning grooves 3114. The stability of the rotor mechanism 3 and the rotating column 12 for realizing circumferential limit can be further improved by the arrangement.
In order to achieve a large current transmission, space saving is achieved. In one embodiment, the stator mechanism 2 includes a plurality of stator members 21 and a plurality of supporting members 22, the plurality of stator members 21 are disposed at intervals along the axial direction of the rotary column 12, one stator member 21 is disposed on the bottom plate 11, two adjacent stator members 21 are connected by the supporting members 22, and each stator member 21 is provided with a conductive surface; the rotor mechanism 3 comprises a plurality of rotor pieces 31, the rotor pieces 31 are sleeved on the rotary column 12 and are arranged at intervals along the axial direction of the rotary column 12, each rotor piece 31 is provided with an electric shock surface, and each rotor piece 31 is correspondingly and adjacently arranged with a stator piece 21 so as to enable the electric shock surface to be in contact and conduction with the conductive surface; the elastic member 4 includes a plurality of elastic members 41, and each elastic member 41 is elastically connected to a rotor member 31.
In the present embodiment, as shown in fig. 1 to 3, the stator mechanism 2 is formed by a plurality of stator members 21 in cooperation, the plurality of stator members 21 are disposed at intervals along the axial direction of the rotary column 12, and two adjacent stator members 21 are connected by a support member 22, so that the plurality of stator members 21 are coaxially connected in series to form an integral structure, and the integral structure is disposed on the base plate 11 by the stator members 21, so as to realize the mounting and fixing of the stator mechanism 2.
It will be appreciated that an installation space is formed between two adjacent stator members 21 through the supporting member 22, the rotor mechanism 3 is formed by matching a plurality of rotor members 31, the plurality of rotor members 31 are all sleeved on the rotating column 12 and are arranged at intervals along the axial direction of the rotating column 12, so that each rotor member 31 is located in the installation space, and each rotor member 31 is correspondingly abutted to the stator member 21 so as to enable an electric shock surface to be abutted to a conductive surface for conduction, and thus, the current transmission of the plurality of rotor members 31 of the rotor mechanism 3 in the yaw current collecting device 100 through the plurality of stator members 21 of the stator mechanism 2 can be realized, and the large current transmission can be realized.
In this embodiment, in order to ensure that the electric shock surface is in contact with the conductive surface when each rotor member 31 is in contact with the stator member 21, the elastic assembly 4 includes a plurality of elastic members 41, and each elastic member 41 is located in the installation space and is elastically connected to one rotor member 31. Alternatively, each rotor member 31 and each elastic member 41 are located between two adjacent stator members 21. It will be appreciated that each stator member 21, each rotor member 31 and each elastic member 41 form a repeating unit which is disposed at intervals in the axial direction of the rotary column 12.
It can be appreciated that in the multiple repeating units, the stator piece 21 and the rotor piece 31 are in contact and conduction with each other through the electric shock surface and the conductive surface in the relative rotation state, so that space can be saved, and meanwhile, the diameters of the stator piece 21 and the rotor piece 31 can be designed according to different conductive capacities, so that a series of products can be realized.
In this embodiment, the rotor members 31 are all sleeved on the rotating post 12, and the rotor members 31 are limited in the rotating circumferential direction of the rotating post 12, that is, the rotor members 31 can rotate along with the rotating post 12 at the same time, so as to realize synchronous rotation. Meanwhile, in order to ensure that the elastic member 41 of the elastic assembly 4 provides an elastic pre-tightening force to each rotor member 31, the plurality of rotor members 31 can relatively move or slide in the axial direction of the rotation post 12.
It will be appreciated that the plurality of rotor members 31 are identical in construction and the plurality of stator members 21 are identical in construction. In the present embodiment, the length of the elastic member 41 in the axial direction of the rotation column 12 is smaller than the distance between the adjacent two stator pieces 21. A plurality of limiting tables 121 are arranged on the rotating column 12 along the axial direction of the rotating column at intervals, each limiting table 121 is located between two adjacent rotor pieces 31, so that elastic pieces 41 are ensured to be elastically limited between the limiting tables 121 and one side, opposite to the stator piece 21, of each rotor piece 31, and accordingly an electric shock surface and a conductive surface are always kept in close contact, and when the rotating column 12 rotates along with a wind turbine generator, the rotating column 12 synchronously drives the plurality of rotor pieces 31 to realize continuous rotation of various forms at the highest speed, and power is transmitted in a back-and-forth positive rotation state.
In one embodiment, each stator member 21 includes a fixing plate 211 and a first conductive plate 212, the fixing plate 211 is provided with a dodging hole 2112, the first conductive plate 212 is connected to the fixing plate 211 and is disposed around the dodging hole 2112, and a conductive surface is provided on a side of the first conductive plate 212 facing away from the fixing plate 211; each rotor member 31 includes a mounting plate 311 and a second conductive plate 312, the mounting plate 311 is provided with a mounting hole 3111, the mounting plate 311 is sleeved on the rotary column 12 through the mounting hole 3111, the second conductive plate 312 is arranged on one side of the mounting plate 311 facing the first conductive plate 212, an electric shock surface is arranged on one side of the second conductive plate 312 facing away from the mounting plate 311, and each elastic member 41 is elastically connected with one side of the mounting plate 311 facing away from the second conductive plate 312.
In the present embodiment, as shown in fig. 1 to 5 and 7, by providing the stator member 21 as the fixing plate 211 and the first conductive plate 212, both mounting and fixing of the first conductive plate 212 and insulation can be achieved by the fixing plate 211. Alternatively, the fixing plate 211 is an insulating plate. By providing the rotor member 31 as the mounting plate 311 and the second conductive plate 312, both mounting and fixing of the second conductive plate 312 and insulation can be achieved by the mounting plate 311. Optionally, the mounting plate 311 is an insulating plate.
It will be appreciated that, in order to further improve the mounting stability of the fixing plate 211 and the first conductive plate 212, and simultaneously achieve the mounting limitation on the first conductive plate 212, as shown in fig. 3 and 5, the fixing plate 211 is provided with a first limitation groove 2111 adjacent to the avoidance hole 2112, and the first conductive plate 212 is accommodated and limited in the first limitation groove 2111. Of course, in order to further improve the mounting stability of the mounting plate 311 and the second conductive plate 312, and simultaneously realize mounting limitation on the second conductive plate 312, as shown in fig. 3 and 5, the periphery of the mounting plate 311 is provided with a second limitation groove 3112, and the second conductive plate 312 is accommodated and limited in the second limitation groove 3112.
In this embodiment, the first limiting groove 2111 and the second limiting groove 3112 can both realize mounting limitation of the first conductive plate 212 and the second conductive plate 312, and simultaneously can realize rotation limitation when the first conductive plate 212 and the second conductive plate 312 are in relative rotation abutment. It will be appreciated that concentric rotation is achieved when the plurality of rotor members 31 are simultaneously rotated with the rotating post 12, and that the plurality of stator members 21 are disposed concentrically with respect to the rotational movement of the plurality of rotor members 31.
In an embodiment, the side of the first conductive plate 212 facing away from the fixing plate 211 is provided with a receiving groove 2121, the stator member 21 further includes a spring contact finger 213, the spring contact finger 213 is disposed in the receiving groove 2121, and a conductive surface is formed on the side of the spring contact finger 213 facing away from the bottom wall of the receiving groove 2121.
In this embodiment, as shown in fig. 3, 5 and 7, the accommodating groove 2121 is provided on the first conductive plate 212, and the spring finger 213 is disposed in the accommodating groove 2121, so that the spring finger 213 is rotationally abutted against the second conductive plate 312 to increase the contact point (i.e. increase the contact area). It will be appreciated that the receiving groove 2121 is filled with a lubricating medium. Such a provision of the lubricating medium may effectively reduce wear between the rotor member 31 and the stator member 21, and may also facilitate the transfer of large currents by the yaw collection device 100.
Optionally, the first conductive pad 212 is made of copper, copper alloy, aluminum alloy, graphite, silver, or gold conductor. Optionally, the second conductive pad 312 is made of copper, copper alloy, aluminum alloy, graphite, silver, or gold conductor. It will be appreciated that the first conductive pad 212/second conductive pad 312 is made of a conductor having relatively good electrical conductivity, such as a pure copper, a copper alloy, an aluminum alloy, graphite, silver, gold, or the like, so that power transmission is effectively achieved.
In an embodiment, a protruding portion is disposed on a side of the second conductive plate 312 facing away from the mounting plate 311, and an electric shock surface is formed on a side of the protruding portion facing away from the rotor member 31, and a portion of the protruding portion protrudes into the accommodating groove 2121 so that the protruding portion abuts against the spring contact finger 213. It will be appreciated that such an arrangement ensures both rotational abutment of the contact surface with the spring finger 213 and rotational limitation of the rotor member 31.
Optionally, the accommodating groove 2121 surrounds the avoidance hole 2112 to form a ring groove, which includes a plurality of ring grooves, and the plurality of ring grooves are arranged at intervals along the radial direction of the rotation column 12, and the spring contact fingers 213 include a plurality of spring contact fingers 213, and each spring contact finger 213 is disposed in one ring groove. It will be appreciated that such an arrangement may further utilize the spring finger 213 to rotationally abut the second conductive plate 312 to increase the contact point (i.e., increase the contact area) to achieve the transfer of large currents.
Of course, in other embodiments, the accommodating groove 2121 includes a plurality of accommodating grooves 2121 spaced around the avoiding hole 2112, and the spring finger 213 includes a plurality of accommodating grooves 213, and each spring finger 213 is disposed in one accommodating groove 2121. It is understood that the structure of the plurality of receiving grooves 2121 disposed at intervals and the extending direction may be different, for example, each receiving groove 2121 extends along the peripheral direction of the avoiding hole 2112; or, each of the receiving grooves 2121 is provided to extend in a radial direction of the rotation post 12, which is not limited herein.
It will be appreciated that the plurality of receiving grooves 2121 are spaced around the escape hole 2112 to form an annular structure including a plurality of annular structures disposed at intervals in the radial direction of the rotary post 12. Optionally, the receiving grooves 2121 in the adjacent two annular structures are disposed in a staggered manner or disposed opposite to each other along the radial direction of the rotating post 12, which is not limited herein.
In an embodiment, the stator mechanism 2 further includes a first copper bar 23, the fixing plate 211 is further provided with a fixing groove 2113, the fixing groove 2113 extends along the radial direction of the rotating column 12 and penetrates through the fixing plate 211, the first copper bar 23 is disposed in the fixing groove 2113, one end of the first copper bar 23 is connected with the first conductive disc 212, and the other end of the first copper bar 23 is used for being connected with an external cable; the rotor mechanism 3 further includes a second copper bar 32, the mounting plate 311 is provided with a through hole 3115, one end of the second copper bar 32 is connected to the second conductive plate 312 through the through hole 3115, and the other end of the second copper bar 32 is connected to an external cable.
In the present embodiment, as shown in fig. 1 to 4 and 7, by disposing the first copper bar 23 along the surface of the stator member 21 and extending to the stator member 21, one end of the first copper bar 23 is connected to the first conductive plate 212, and the other end of the first copper bar 23 is connected to an external cable, so that the electric power of the stator member 21 can be transmitted to the ground through the first copper bar 23 and the external cable. Meanwhile, the second copper bar 32 is disposed on one side of the rotor member 31 facing away from the stator member 21, and the second copper bar 32 is disposed along the axial direction of the rotary column 12, such that one end of the second copper bar 32 passes through the through hole 3115 and is connected with the second conductive disc 312, and the other end of the second copper bar 32 is connected with an external cable, so that the rotor member 31 can conveniently receive the electric power of the fan generator through the second copper bar 32 and the cable.
Alternatively, as shown in fig. 7, the fixing grooves 2113 include a plurality of fixing grooves 2113, the plurality of fixing grooves 2113 are disposed at intervals along the periphery of the first conductive plate 212, the first copper bar 23 includes a plurality of fixing grooves 23, and the first copper bar 23 is disposed in one-to-one correspondence with the fixing grooves 2113. The arrangement can effectively realize large current transmission. Of course, in other embodiments, as shown in fig. 2 to 5, the through holes 3115 include a plurality of through holes 3115, the plurality of through holes 3115 are arranged at intervals along the circumferential direction of the rotation column 12, the second copper bar 32 includes a plurality of through holes 3115, and the second copper bars 32 are arranged in one-to-one correspondence with the through holes 3115. The arrangement can effectively realize large current transmission.
It can be appreciated that, in order to achieve space saving, as shown in fig. 3 to 5, each mounting plate 311 is further provided with a via 3116 corresponding to the second copper bar 32, and one end of the second copper bar 32 away from the second conductive plate 312 is sequentially disposed through the avoidance hole 2112 and the via 3116, and extends along the axial direction of the rotation column 12. In the present embodiment, each through hole 3116 corresponds to a second copper bar 32, and the through holes 3116 of the plurality of mounting plates 311 are located on the same axis along the axial direction of the rotation column 12 of the plurality of rotor members 21.
Alternatively, as shown in fig. 2 and 4, a plurality of through holes 3115 are provided at intervals in the circumferential direction of the rotation column 12 and are located on the same circumference. The plurality of through holes 3116 are provided at intervals in the circumferential direction of the rotation column 12 and are located on the same circumference.
In the present embodiment, a plurality of second copper bars 32 are connected to each rotor member 31, and the plurality of second copper bars 32 are disposed at intervals and extend in the axial direction of the rotary column 12. In the axial direction of the rotating column 12, the projections of the plurality of second copper bars 32 of the plurality of rotor pieces 31 on the base plate 11 do not coincide. It will be appreciated that the number of through holes 3116 provided in the mounting plate 311 of each rotor member 31 increases gradually from the side adjacent to the base plate 11 to the side distant from the base plate 11.
Alternatively, the number of through holes 3115 provided in the mounting plate 311 in the plurality of rotor pieces 31 may be the same or different, and is not limited herein. In the present embodiment, the plurality of second copper bars 32 of two adjacent rotor members 31 are arranged in a staggered manner or in a spiral manner in the axial direction of the rotation column 12, which is not limited herein. Thus, the distance between the second copper bars 32 can be effectively increased, the installation is convenient, and the breakdown of the two poles can be prevented.
It will be appreciated that a plurality of first copper bars 23 are connected to each stator 21, and the plurality of first copper bars 23 are disposed at intervals. Alternatively, the extending direction of the first copper bar 23 is perpendicular to the extending direction of the second copper bar 32.
In the present embodiment, projections of the plurality of first copper bars 23 of the plurality of stator pieces 21 on the base plate 11 may or may not overlap in the axial direction of the rotation column 12. Alternatively, projections of the plurality of first copper bars 23 of the adjacent two stator pieces 21 on the bottom plate 11 may be misaligned in the axial direction along the rotation column 12, so that it is effective to increase the distance between the first copper bars 23, to facilitate installation, and to prevent breakdown of both poles.
It will be appreciated that one, two, three, four, five or more first copper bars 23 are connected to each stator member 21, and one, two, three, four, five or more second copper bars 32 are connected to each rotor member 31, which is not limited herein. Alternatively, one, two, three, four, five or more stator pieces 21 may be provided along the axial direction of the rotation post 12, and the plurality of stator pieces 21 may be provided at intervals and coaxially in series along the axial direction of the rotation post 12. Along the axial direction of the rotation column 12, one, two, three, four, five or more rotor pieces 31 may be provided, and the plurality of rotor pieces 31 are arranged in series and spaced apart along the axial direction of the rotation column 12.
In order to realize the routing of the second copper bars 32 of each rotor member 31, the second copper bars 32 of the plurality of rotor members 31 are all disposed through the avoidance holes 2112 of the stator member 21, so that the second copper bars 32 of the plurality of rotor members 31 can be led out in the same direction along the axial direction of the rotary column 12, and finally, the leading-out wire ends of the rotor mechanism 3 are all at the uppermost or lowermost positions of the serial conductive plates.
The invention also provides a wind generating set, which comprises a tower, a cabin and the yaw collecting device 100, wherein the specific structure of the yaw collecting device 100 refers to the embodiment, and the wind generating set adopts all the technical schemes of all the embodiments, so that the wind generating set at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
In the present embodiment, the nacelle is rotatably connected with the tower, the nacelle is provided with a generator, the rotor mechanism 3 and/or the rotor post 12 of the yaw collecting device 100 are provided in the nacelle, the rotor mechanism 3 is connected with the generator by a cable, and the stator mechanism 2 and/or the bedplate 11 of the yaw collecting device 100 are connected with the tower. It will be appreciated that the end of the tower remote from the nacelle is fixed to the ground, and that the nacelle is provided with a plurality of blades such that the blades of the nacelle are rotated by the wind in the high altitude to drive the rotor mechanism 3 of the yaw collection device 100 to rotate relative to the stator mechanism 2.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (13)
1. A yaw collection device, characterized in that the yaw collection device comprises:
the base body comprises a bottom plate and a rotating column, and the rotating column is rotatably arranged on the bottom plate in a penetrating manner;
the stator mechanism is arranged on the bottom plate and is provided with a conductive surface;
the rotor mechanism is provided with an electric shock surface, and the rotor mechanism is sleeved on the rotating column so as to enable the electric shock surface to be in contact conduction with the conductive surface; a kind of electronic device with high-pressure air-conditioning system
And one end of the elastic component is connected with the rotating column, and the other end of the elastic component is elastically connected with one side of the rotor mechanism, which is opposite to the stator mechanism, so that the electric shock surface is in close contact with the conductive surface.
2. The yaw collecting device of claim 1, wherein the rotating column is provided with a limiting table, and the elastic component is sleeved on the rotating column and elastically limited between the limiting table and the rotor mechanism.
3. The yaw collecting device of claim 2, wherein a first groove is formed in a side, facing the rotor mechanism, of the limiting table, a second groove is formed in a side, facing away from the stator mechanism, of the rotor mechanism, and two ends of the elastic assembly are respectively limited in the first groove and the second groove.
4. The yaw collecting device according to claim 1, wherein the rotor mechanism is provided with a mounting hole, one of the outer wall of the rotating column and the hole wall of the mounting hole is provided with a positioning boss, and the other is provided with a positioning groove;
the rotor mechanism is sleeved on the rotating column through the mounting hole, and the positioning boss is limited in the positioning groove.
5. The yaw collecting device according to claim 4, wherein the outer wall of the rotating column is convexly provided with the positioning boss, the positioning boss is extended along the axial direction of the rotating column, and the hole wall of the mounting hole is concavely provided with the positioning groove;
the positioning bosses are arranged at intervals along the circumferential direction of the outer wall of the rotating column, the positioning grooves are arranged at intervals, and the positioning bosses are arranged in one-to-one correspondence with the positioning grooves.
6. The yaw collecting device according to any one of claims 1 to 5, wherein the stator mechanism includes a plurality of stator pieces and a plurality of supporting pieces, the plurality of stator pieces being disposed at intervals in an axial direction of the rotating column, one of the stator pieces being disposed on the bottom plate, two adjacent stator pieces being connected by the supporting pieces, each of the stator pieces being provided with the conductive surface;
the rotor mechanism comprises a plurality of rotor pieces, the rotor pieces are sleeved on the rotating column and are arranged at intervals along the axial direction of the rotating column, each rotor piece is provided with an electric shock surface, and each rotor piece is correspondingly and in abutting connection with one stator piece so as to enable the electric shock surface to be in abutting connection with the conductive surface;
the elastic component comprises a plurality of elastic pieces, and each elastic piece is elastically connected with one rotor piece.
7. The yaw collection device of claim 6, wherein each stator member comprises a fixed plate and a first conductive plate, the fixed plate is provided with a relief hole, the first conductive plate is connected to the fixed plate and is arranged around the relief hole, and a side of the first conductive plate facing away from the fixed plate is provided with the conductive surface;
Each rotor piece comprises a mounting plate and a second conductive disc, wherein the mounting plate is provided with a mounting hole, the mounting plate is sleeved on the rotating column through the mounting hole, the second conductive disc is arranged on one side of the mounting plate facing the first conductive disc, one side of the second conductive disc facing away from the mounting plate is provided with an electric shock surface, and each elastic piece is elastically connected with one side of the mounting plate facing away from the second conductive disc.
8. The yaw collection device of claim 7, wherein a receiving slot is formed in a side of the first conductive plate facing away from the fixed plate, the stator member further comprising a spring contact finger disposed in the receiving slot, the side of the spring contact finger facing away from a bottom wall of the receiving slot forming the conductive surface.
9. The yaw collecting device of claim 8, wherein a side of the second conductive plate facing away from the mounting plate is provided with a protrusion, the side of the protrusion facing away from the rotor member forms the electric shock surface, and a part of the protrusion extends into the accommodating groove so that the protrusion abuts against the spring contact finger;
and/or the accommodating groove is filled with a lubricating medium;
And/or the first conductive disc is made of copper, copper alloy, aluminum alloy, graphite, silver and gold conductors;
and/or the second conductive disc is made of copper, copper alloy, aluminum alloy, graphite, silver and gold conductors;
and/or, the fixing plate is provided with a first limit groove adjacent to the avoidance hole, and the first conductive disc is accommodated in and limited in the first limit groove;
and/or the periphery of the mounting plate is provided with a second limit groove, and the second conductive plate is accommodated in and limited in the second limit groove;
and/or, the fixing plate is an insulating plate, and the mounting plate is an insulating plate;
and/or the elastic piece is a spring.
10. The yaw collection device of claim 8, wherein the receiving groove forms a plurality of ring grooves around the relief hole, the ring grooves are arranged at intervals along the radial direction of the rotating column, the spring contact fingers comprise a plurality of spring contact fingers, and each spring contact finger is arranged in one ring groove;
or, the accommodating grooves are arranged at intervals around the avoidance holes, the spring contact fingers are arranged in a plurality, and each spring contact finger is arranged in one accommodating groove;
Or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, and each accommodating groove extends along the peripheral direction of the avoidance hole;
or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, and each accommodating groove extends along the radial direction of the rotating column;
or, the accommodating grooves comprise a plurality of accommodating grooves which are arranged at intervals around the avoidance holes, the spring contact fingers comprise a plurality of spring contact fingers, each spring contact finger is arranged in one accommodating groove, the plurality of accommodating grooves are arranged at intervals around the avoidance holes so as to form an annular structure, the annular structure comprises a plurality of annular structures, and the plurality of annular structures are arranged at intervals along the radial direction of the rotating column;
or, the holding groove includes a plurality of, and is a plurality of the holding groove encircles dodge the hole interval sets up, the spring touch is pointed including a plurality ofly, every the spring touch is pointed to locate one in the holding groove, a plurality of the holding groove encircles dodge the hole interval sets up, so as to form the annular structure, the annular structure includes a plurality of, a plurality of the annular structure is followed the radial direction interval setting of rotation post, follows the radial direction of rotation post, adjacent two in the annular structure the holding groove is dislocation set or sets up relatively.
11. The yaw collecting device according to claim 7, wherein the stator mechanism further comprises a first copper bar, the fixing plate is further provided with a fixing groove, the fixing groove extends in the radial direction of the rotating column and penetrates through the fixing plate, the first copper bar is arranged in the fixing groove, one end of the first copper bar is connected with the first conductive disc, and the other end of the first copper bar is used for being connected with an external cable;
the rotor mechanism further comprises a second copper bar, the mounting plate is provided with a through hole, one end of the second copper bar penetrates through the through hole to be connected with the second conductive disc, and the other end of the second copper bar is used for being connected with an external cable.
12. The yaw collecting device of claim 11, wherein the plurality of fixing grooves are arranged at intervals along the periphery of the first conductive plate, the plurality of first copper bars are arranged in a one-to-one correspondence with the fixing grooves;
and/or the through holes are formed in a plurality, the through holes are arranged at intervals along the peripheral direction of the rotating column, the second copper bars are formed in a plurality, and the second copper bars are arranged in one-to-one correspondence with the through holes;
And/or, each mounting plate is also provided with a via hole corresponding to the second copper bar, and one end of the second copper bar, which is far away from the second conductive disc, sequentially penetrates through the avoidance hole and the via hole and extends along the axial direction of the rotating column.
13. A wind power generation set, the wind power generation set comprising:
a tower;
the engine room is rotationally connected with the tower, and is provided with a generator; a kind of electronic device with high-pressure air-conditioning system
Yaw collecting device according to any of claims 1 to 12, a rotor mechanism and/or a turning post of the yaw collecting device being provided in the nacelle, the rotor mechanism being connected to the generator by means of a cable, a stator mechanism and/or a bedplate of the yaw collecting device being connected to the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989625.4A CN117154483A (en) | 2023-08-07 | 2023-08-07 | Yaw current collecting device and wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310989625.4A CN117154483A (en) | 2023-08-07 | 2023-08-07 | Yaw current collecting device and wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117154483A true CN117154483A (en) | 2023-12-01 |
Family
ID=88901752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310989625.4A Pending CN117154483A (en) | 2023-08-07 | 2023-08-07 | Yaw current collecting device and wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117154483A (en) |
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2023
- 2023-08-07 CN CN202310989625.4A patent/CN117154483A/en active Pending
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