CN109253179A - Rigid coupling and wind generating set - Google Patents
Rigid coupling and wind generating set Download PDFInfo
- Publication number
- CN109253179A CN109253179A CN201811110253.9A CN201811110253A CN109253179A CN 109253179 A CN109253179 A CN 109253179A CN 201811110253 A CN201811110253 A CN 201811110253A CN 109253179 A CN109253179 A CN 109253179A
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- Prior art keywords
- plunger
- generator
- ball
- ball pin
- positive coupling
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- 230000008878 coupling Effects 0.000 title claims abstract description 60
- 238000010168 coupling process Methods 0.000 title claims abstract description 60
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 60
- 239000004570 mortar (masonry) Substances 0.000 claims description 40
- 239000000314 lubricant Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 11
- 238000005461 lubrication Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 8
- 239000004519 grease Substances 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010248 power generation Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011796 hollow space material Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
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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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention provides a rigid coupling, which is used for a direct-drive wind generating set and is connected with a hub (1) and a generator (5), and the rigid coupling comprises a first end and a second end, wherein the first end is movably connected with the hub (1); and a second end movably connected with the generator (5); the first end or the second end is a variable angle power transmission member. The invention also provides a wind generating set, and the hub (1) and the generator (5) are connected through the rigid coupling. The rigid coupling is used for transmitting power between the hub (1) and the generator (5), so that bending moment transmitted to the generator (5) can be eliminated, and pure torque power transmission to the generator (5) is realized.
Description
Technical field
The present invention relates to a kind of positive couplings, more particularly, to a kind of wind power generating set, wheel hub and power generation
Machine is connected by a kind of positive coupling.
Background technique
Direct wind-driven generator group generally includes wheel hub, generator and multiple blades, and generator includes stator and rotor.It is more
A blade is connected on wheel hub, and wheel hub is directly connected on the rotor of generator, intermediate not gear-box driven generator
Rotor.The rotor blade of Wind turbines brings necessary torsional moment, while generating the energy, rotor also will receive it is more its
His load effect, the mainly influence due to the unbalanced inflow and tower of rotor blade plane interior air-flow to air-flow.Often
A blade will undergo different wind speed and directions during rotation is turned around, and then additional continuous variation can be generated to blade
Power and torque, these power and torque can further direction wind-driven generator group other component (such as generator) transmitting.
Inevitably, wind load is directly passed to generator by blade, wheel hub, cause generator unit stator and rotor it
Between air gap be difficult to control in addition wind load caused by bending load can damage important component (such as the bearing, bracket of generator
Etc. structures) destruction so that need to increase bearing type selecting and structural member intensity, to guarantee the reliability service of wind-driven generator,
But generator weight and cost can all steeply rise.
For the Wind turbines that nowadays impeller rotating diameter reaches 100m or more, in these wheel hub Plane of rotations
External load can generate tremendous influence to direct wind-driven generator group.In order to which direct wind-driven generator group can smoothly be transported
It goes and possesses long service life, how to make the sensitive mechanical components in direct wind-driven generator group far from all as much as possible
External load becomes further important.
Summary of the invention
The present invention is to solve the problems, such as that above-mentioned power transmitting exists, and discloses a kind of direct wind-driven generator comprising band
There is the wheel hub of multiple blades, which connects a ball pin plunger type shaft coupling, and shaft coupling connects generator 5.Specifically, this hair
It is bright to disclose a kind of positive coupling, comprising: first end is flexibly connected with the wheel hub 1；And second end, with the power generation
Machine 5 is flexibly connected；The first end and second end one end therein are varied angle power transfer member, the first end or
The second end other end therein is axially movable transmission member.
The positive coupling can eliminate the bending load from wind load for passing to generator 5, only pass pure torsion
Generator 5 is passed, when reducing the load of generator 5 in this way, therefore designing generator 5, the weight and bearing type selecting of generator 5
Cost all can effectively decline.
Preferably, described one end is varied angle power transfer member, and the other end is axially movable transmission member.And
And preferably, setting first end is varied angle power transfer mechanism, and bending load can be disappeared in the first end of power transmission
It removes, improves efficiency of transmission.
Preferably, the connection structure of the first end and the second end forms the connection structure of ball pin plunger 4, also,
Described one end is 4.1 connection structure of ball pin, and the other end is 4.2 connection structure of plunger, the ball pin 4.1 and the plunger
4.2 integrally formed ball pin plungers 4.Using the varied angle power transfer member of ball pin plunger 4, axial moment of flexure can be effectively offset
Load.
Preferably, described one end includes: ball mortar 2.1, is fixedly connected by rotation axis 2 with wheel hub 1；Ball mortar lid 2.2,
Accommodating cavity is fixedly connected to form with ball mortar 2.1；And ball pin 4.1, it is contained in the accommodating cavity.Ball pin 4.1 accommodates
To transmit power in ball mortar 2.1, the freedom of movement of all directions of the bending load by ball pin 4.1 in ball mortar 2.1 is offset.
Preferably, the other end includes: plunger case 5.1.1, is fixedly connected with generator amature 5.1；And plunger
4.2, it is axially receiving in the plunger case 5.1.1.Preferably, when setting first end is varied angle power transfer mechanism,
The plunger case 5.1.1 of the second end of positive coupling is rigidly fixed with generator amature 5.2 to be connect, and directly transmitting is by ball pin plunger
4 eliminate the pure torsion after bending load.
Preferably, the ball pin plunger includes oil duct 4.3, is axially inside extended in the ball pin plunger 4.
And the ball pin 4.1 and 2.1 clearance fit of ball mortar, the ball pin 4.1 be contained in the ball mortar 2.1 with
The ball mortar lid 2.2 is formed by the first outlet that the part in cavity has the oil duct 4.3.
It also, include accommodate lubricant medium first in the accommodating cavity that the ball mortar 2.1 is formed with the ball mortar lid 2.2
Cavity, first cavity can be connected to the first outlet.
Further, hydraulic fluid port 5.1.1.1, the plunger 4.2 and the plunger case are provided on the plunger case 5.1.1
5.1.1 clearance fit, the part that the plunger 4.2 is contained in the plunger case 5.1.1 have the second of the oil duct 4.3 to go out
Mouthful.
Also, it is formed between the end of the plunger 4.2 and the medial end of the plunger case 5.1.1 and accommodates lubricant medium
The second cavity, second cavity is connected to the second outlet.
By the lubricant method and seal approach of above-mentioned lubrication, reduce the activity friction of ball pin 4.1 and plunger 4.2
Power guarantees the ride comfort of power transmitting and reduces the abrasion between component, and can reduce slippage.
Preferably, it is respectively arranged with sealing structure at the outboard end of the kinematic pair at the both ends of the ball pin plunger 4, to prevent
Only lubricant grease leaks.
Preferably, in the accommodating cavity and the plunger case of the ball mortar 2.1 and the ball mortar lid 2.2 formation
5.1.1 graphite block is provided in be lubricated.
Preferably, multiple ball pin plungers 4 form one group, are uniformly distributed in the same diameter distance of the positive coupling
Circumferencial direction, and the ball pin of different-diameter distance is respectively provided in the radial direction of positive coupling setting at least one set
4 groups of plunger.The multiple ball pin plungers 4 being evenly arranged of multiple groups are distributed in the positive coupling radially and circumferentially, can be with
Stably and reliably carry out power transmitting.
The invention also discloses a kind of wind power generating sets, connect wheel hub and power generation by above-mentioned positive coupling
Machine.
The present invention transmits the power between wheel hub and generator by positive coupling, reduces the invalid load of generator
Lotus.Generator only needs torque to generate electricity, and it is invalid load to generator that moment of flexure etc., which is,.Due to the knot of ball pin plunger
Structure, when wheel hub is by Moment, ball pin plunger can be moved with the bending of wheel hub, but axial direction does not constrain, institute
Generator, therefore the torsion that the generator only effect by payload, i.e. wind load generate wheel hub are not transferred to moment of flexure
Square, for producing electricl energy, and other load are shielded and are eliminated by shaft coupling so that the load that is subject to of generator effectively,
Stablize, reduces the load of generator.Therefore the weight of generator structure can be reduced, the service life of generator and bearing is improved.
This invention ensures that the uniformity of the air gap between generator amature and stator.The moment of flexure that wind load generates wheel hub
Entire wind-driven generator unit can be acted on, but the stator of generator and rotor are only servo-actuated simultaneously at this time, stator and turn
The not opposite bending deformation of son, will not influence the air gap of generator, ensure that the uniformity of power generator air gap.
Positive coupling in the present invention is passive control, is changed automatically with the moment of flexure that wind load generates, is not needed
Additional active control has high reliablity, safeguards simple feature.
Positive coupling shaft coupling uses self lubricating system in the present invention, and each oil site is determined by automatic lubricating system
Shi Dingdian supplies lubricating oil, has the characteristics that non-maintaining.
Detailed description of the invention
The present invention may be better understood from the description with reference to the accompanying drawing to a specific embodiment of the invention,
In:
By reading detailed description of non-limiting embodiments referring to the drawings, other feature of the invention,
Objects and advantages will become more apparent upon, wherein the same or similar appended drawing reference indicates the same or similar feature.
Attached drawing 1 is the axial cross-sectional views that positive coupling connects wheel hub and generator amature；
Attached drawing 2 is ball pin piston structure partial enlarged view.
Wherein:
1- wheel hub；2- rotation axis；2.1- ball mortar；2.2- ball mortar lid；3- dead axle；4- ball pin plunger；4.1- ball pin；4.2- column
Plug；4.3- oil duct；5- generator；5.1- generator amature；5.1.1- plunger case；5.1.1.1- hydraulic fluid port is lubricated；5.2- generator
Stator；6- rear bearing；7- middle (center) bearing；8- fore bearing.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, many details are proposed, in order to provide complete understanding of the present invention.But to those skilled in the art
It will be apparent that the present invention can be implemented in the case where not needing some details in these details.Below to implementation
The description of example is used for the purpose of providing by showing example of the invention and better understanding of the invention.In attached drawing and following
Description in, at least part of known features and technology are not shown, unnecessary fuzzy to avoid causing the present invention；
Also, for clarity, may be exaggerated the size of part-structure.Identical appended drawing reference indicates same or similar knot in figure
Structure, thus the detailed description that them will be omitted.In addition, feature described below, structure or characteristic can be with any suitable
Mode be incorporated in one or more embodiments.
The present invention provides a kind of positive coupling, the wheel hub 1 and generator 5 of direct wind-driven generator are connected, two
Connecting pin is flexibly connected with respective connection structure, and wherein one end is the transmitting of variable-angle power, and the other end is axially-displaceable
It moves and connects and rigid circumference connects.Wheel hub 1 is equipped with multiple blades, which connects a ball pin plunger type positive coupling,
The positive coupling connects generator.Optionally, one end variable-angle power biography can also may be implemented in the present invention using other
Pass connection, other connection structure forms that the other end is connected in rigid circumference.The present invention is with ball pin plunger type positive coupling
Example, makes the connection structure and illustrates.
Referring to attached drawing 1 and attached drawing 2, which is the axial section signal of positive coupling connection wheel hub and generator amature
Figure and ball pin piston structure partial enlarged view.
Specifically, wheel hub 1 connects multiple blades, when wind power generating set operation, in wind load action to multiple blades,
Transfer load to wheel hub 1.Rotation axis 2 is bolted in wheel hub 1, and rotation axis 2 passes through middle (center) bearing 7 and fore bearing 8 by dead axle 3
It is supported connection, and rotation axis 2 is attached with generator amature 5.1 by ball pin plunger 4.Dead axle 3 and generator are fixed
Son 5.2 is attached by bolt.The first end of positive coupling is fixedly connected with rotation axis 2, second end and generator amature
5.1 being fixedly connected.In above-mentioned connection structure, fixed part includes dead axle 3 and generator unit stator 5.2；Rotating part includes
Wheel hub 1, rotation axis 2, ball pin plunger 4 and generator amature 5.1.Fixed part and rotating part rely on rear bearing 6, middle (center) bearing 7
And fore bearing 8 is supported, and reduces pivoting friction, ensure that rotation precision.
Positive coupling includes ball pin plunger type coupler structure form, and circumferentially upper arrangement is multiple for the shaft coupling
4 structure of ball pin plunger.Attached drawing 1 is specifically referred to, each ball pin plunger 4 is the structure integrally formed by ball pin 4.1 and plunger 4.2
Multiple ball pin plungers are distributed in the circumferencial direction of part, the same diameter distance rotated along the positive coupling of wind power generating set
4, it is preferable that multiple ball pin plungers 4 are evenly arranged in circumferencial direction.Also, the above-mentioned ball with identical shaft coupling diametral distance
Pin plug 4 is formed as one group of ball pin plunger group, settable multiple groups ball pin plunger 4, each group of different-diameter for being distributed in shaft coupling
The circumferencial direction of distance, i.e., the every group different radial positions in positive coupling are arranged.The company of the multiple ball pin plungers 4 of multiple groups is set
Binding structure, can be with stability and high efficiency by the load transmission of wheel hub 1 and rotation axis 2 to generator amature 5.1.
The positive coupling can eliminate the bending load from wind load for passing to generator, only transmit pure torsion
To generator, when reducing the load of generator, therefore designing generator, the weight of generator, the cost of bearing type selecting all can
Effectively decline.
It is above that varied angle power transmission structure is made that specific description to the wheel hub connecting pin of positive coupling, in this way
Arrangement, the bending load from blade can be disappeared in the first end for the power transmission for passing to generator
It removes, improves efficiency of transmission.
Alternatively it is also possible to varied angle power transmission structure form is set by the generator connecting pin of positive coupling,
The ball pin end of ball pin plunger 4 is connect with generator 5, the plunger end of ball pin plunger 4 is connect with wheel hub 1.
Regardless of which kind of form is the arragement construction of ball pin plunger 4 be, it is in the certain distance of ball pin piston structure in the circumferential
Do not carry out axial constraint, that is to say, that in the axial direction, which can carry out axial in certain distance
Displacement.When wind load generates moment of flexure to wheel hub 1, ball pin piston structure a part is moved axially, and another part carries out axial
Backward shift is dynamic, to effectively eliminate non axial moment of flexure and carry out pure torsion power transmitting.
Further, the mounting means of ball pin plunger 4 is made and illustrates.As shown in Fig. 2, ball pin plunger 4 its
Middle one end, ball pin 4.1 are placed in the ball mortar 2.1 in rotation axis 2 and ball mortar lid 2.2, and ball mortar 2.1 and ball mortar lid 2.2 pass through spiral shell
It tethers the mode connect to be enclosed in ball pin 4.1 in the spherical hollow space of its formation, ball mortar 2.1, ball mortar lid 2.2 and ball pin 4.1 3
Contact surface between person is a spherical surface, and relative motion is any direction that ball pin 4.1 rotates.
Certainly, to realize the transmitting of varied angle power, the varied angle power transmitting end of positive coupling can be using other knots
Configuration formula, such as the structure type of universal joint etc., as long as can be realized the transmitting of varied angle power.
4 other end of ball pin plunger, plunger 4.2 are placed in the plunger case 5.1.1 on rotor 5.1, the two parts connect
Contacting surface is a cylindrical surface, and main movement direction is that axial translational motion is carried out along plunger case 5.1.1.
Wheel hub 1 be primarily subjected to blade along rotational axis line torque, power generation is passed to by rotation axis 2 and ball pin plunger 4
Machine rotor 5.1, so that generator be made to produce electricl energy.But wheel hub 1 will also bear the moment of flexure generated by blade, and moment of flexure passes through rotation axis
2 pass to ball pin plunger 4, since the ball pin 4.1 and ball mortar 2.1 of ball pin plunger 4 and the cooperation of ball mortar lid 2.2 are a spherical pairs,
So ball pin 4.1 can be rotated in the spherical hollow space of ball mortar 2.1 and the formation of ball mortar lid 2.2 in rotation axis 2.And ball
The plunger 4.2 of pin plug 4 and the cooperation of plunger case 5.1.1 are a prismatic pairs, so plunger 4.2 can be fixed with rotor 5.1
Translational motion is carried out in the plunger case 5.1.1 of connection.Due to there is the presence of ball pin plunger 4, wheel hub 1 passes to the curved of rotation axis 2
Square can not pass to rotor 5.1, so generator only receives pure torsion, to ensure that between the stator of generator and rotor
The uniformity of air gap reduces the load of generator.
When the operation of wind-driven generator unit, the ball pin 4.1 and the plunger 4.2 of ball mortar 2.1, ball pin plunger 4 of ball pin plunger 4
With plunger case 5.1.1 be clearance fit, respectively between there are relative motions.Preferably, it is set on the contact surface of each moving component
Set lubrication system.Specifically, referring to attached drawing 2, the setting lubrication hydraulic fluid port 5.1.1.1 on the side wall of plunger case 5.1.1, in ball pin column
Oil duct 4.3 is set in plug 4, and oil duct 4.3 is arranged through ball pin plunger 4.Oil duct 4.3 extends to ball pin 4.1 and has first to go out
Mouthful, ball mortar 2.1 and ball mortar lid 2.2 are formed by and are provided with the first cavity that can store fraction lubricant grease in cavity,
Preferably, which is connected to first cavity.Similarly, oil duct 4.3 extends to the end of plunger 4.2 and has second
It exports, space is provided with the second cavity that can store fraction lubricant grease in the cylinder that plunger case 5.1.1 is formed, it is preferable that
Second cavity, and the of 4.2 end of plunger are formed between the end of plunger 4.2 and the medial end of plunger case 5.1.1
Two outlets are connected to second cavity.
In this way, forming automatic lubricating system between the kinematic pair of two end constructions of plunger 4.2, which passes through
Lubrication hydraulic fluid port 5.1.1.1 enters in plunger case 5.1.1, and the profit of opposite side is transmitted to by the oil duct 4.3 being arranged in ball pin plunger 4
On sliding surface.Lubricant grease periodically is provided to lubrication hydraulic fluid port 5.1.1.1 by automatic, is connect to the relative motion at 4 both ends of ball pin plunger
Contacting surface provides lubricant grease, guarantees the ride comfort of its movement and reduces the abrasion between component.
As the embodiment of deformation, lubrication hydraulic fluid port 5.1.1.1 can also be arranged in ball mortar 2.1 or ball mortar lid 2.2
On, or be respectively provided with lubrication hydraulic fluid port 5.1.1.1 at the both ends of ball pin plunger 4 and realize the profit to 4 both ends kinematic pair of ball pin plunger
Sliding setting.
Further, as optional embodiment, lubricating system can be also in the cavity of ball mortar 2.1, the formation of ball mortar lid 2.2
Graphite block is embedded in interior or plunger case 5.1.1 cavity.Since graphite has good lubricity, ball pin column can satisfy
The lubrication needs of the both ends kinematic pair of plug 4.
Certainly, when using the lubrication form of lubricant grease, at the contact outer end of ball mortar lid 2.2 and ball pin 4.1, if
It is equipped with corresponding seal approach；And at the contact outer end of plunger 4.3 and plunger case 5.1.1, it is also equipped with corresponding close
Envelope measure.Specifically, seal approach can be using forms such as malthoid, labyrinth structures.
The invention also discloses a kind of wind power generating sets, connect wheel hub and power generation by above-mentioned positive coupling
Machine.
The present invention transmits the power between wheel hub 1 and generator 5 by positive coupling, reduces the invalid of generator
Load.Generator 5 only needs torque to generate electricity, and it is invalid load to generator that moment of flexure etc., which is,.Due to ball pin plunger 4
Structure, when wheel hub 1 is by Moment, ball pin plunger 4 can be moved with the bending of wheel hub 1, but the axial direction of ball pin plunger 4
Direction does not constrain, so moment of flexure is not transferred to generator 5, therefore the only effect by the payload of torque of generator 5.
That is the torque that generates to wheel hub 1 of wind load, for producing electricl energy, and other load are shielded and are disappeared by positive coupling
It removes, so that the load that generator 1 is subject to is effective, stablizes, reduces the load of generator.In this way, generator can be further decreased
The weight of structural member improves the service life of generator 1 and bearing.
This invention ensures that the uniformity of the air gap between generator amature 5.1 and stator 5.2.Wind load produces wheel hub 1
Raw moment of flexure can act on entire wind-driven generator unit, but the stator 5.2 of generator and rotor 5.1 are while carrying out at this time
Servo-actuated, stator 5.2 and the not opposite bending deformation of rotor 5.1 will not influence the air gap of generator 1, ensure that generator
The uniformity of air gap between stator 5.2 and rotor 5.1.
Positive coupling in the present invention is passive control, is changed automatically with the moment of flexure that wind load generates, is not needed
Additional active control has high reliablity, safeguards simple feature.
Positive coupling shaft coupling uses self lubricating system in the present invention, and each oil site is determined by automatic lubricating system
Shi Dingdian supplies lubricating oil, has the characteristics that non-maintaining.
The present invention can realize in other specific forms, without departing from its spirit and essential characteristics.Therefore, current reality
Apply example be all counted as being exemplary rather than in all respects it is limited, the scope of the present invention by appended claims rather than on
Description definition is stated, also, falls into the meaning of claim and whole changes in the range of equivalent to all be included in this
Among the range of invention.Also, the different technologies feature occurred in different embodiments can be combined, to obtain beneficial to effect
Fruit.Those skilled in the art will be understood that and realize revealed on the basis of studying attached drawing, specification and claims
The embodiment of other variations of embodiment.
Claims (13)
1. a kind of positive coupling is used for direct wind-driven generator group, wheel hub (1) and generator (5) are connected, which is characterized in that
Including
First end is flexibly connected with the wheel hub (1)；And
Second end is flexibly connected with the generator (5)；
The first end or the second end are varied angle power transfer member.
2. positive coupling according to claim 1, which is characterized in that the first end and the second end therein one
End is varied angle power transfer member, and the first end and the second end other end therein are axially movable transmitting structure
Part.
3. positive coupling according to claim 2, which is characterized in that the connection knot of the first end and the second end
It is configured to the connection structure of ball pin plunger (4), also, described one end is ball pin (4.1) connection structure, the other end is plunger
(4.2) connection structure, the ball pin (4.1) and the plunger (4.2) are integrally formed ball pin plunger (4).
4. positive coupling according to claim 3, which is characterized in that described one end includes
Ball mortar (2.1) is fixedly connected by rotation axis (2) with wheel hub (1)；
Ball mortar lid (2.2) is fixedly connected to form accommodating cavity with the ball mortar (2.1)；And
Ball pin (4.1), is contained in the accommodating cavity.
5. positive coupling according to claim 4, which is characterized in that the other end includes
Plunger case (5.1.1) is fixedly connected with generator amature (5.1)；And
Plunger (4.2) is contained in the plunger case (5.1.1).
6. positive coupling according to claim 5, which is characterized in that the ball pin plunger (4) includes oil duct (4.3),
The oil duct (4.3) axially inside extends in the ball pin plunger (4).
7. positive coupling according to claim 6, which is characterized in that between the ball pin (4.1) and the ball mortar (2.1)
Gap cooperation, the ball pin (4.1) are contained in the part that the ball mortar (2.1) is formed by cavity with the ball mortar lid (2.2)
First outlet with the oil duct (4.3).
8. positive coupling according to claim 7, which is characterized in that the ball mortar (2.1) and the ball mortar lid (2.2)
It include the first cavity for accommodating lubricant medium in the accommodating cavity of formation, first cavity can be connected to the first outlet.
9. positive coupling according to claim 6, which is characterized in that be provided with hydraulic fluid port on the plunger case (5.1.1)
(5.1.1.1), the plunger (4.2) and the plunger case (5.1.1) clearance fit, the plunger (4.2) are contained in the column
Part in plug cylinder (5.1.1) has the second outlet of the oil duct (4.3).
10. positive coupling according to claim 9, which is characterized in that the end of the plunger (4.2) and the plunger
The second cavity for accommodating lubricant medium, second cavity and the second outlet are formed between the medial end of cylinder (5.1.1)
Connection.
11. positive coupling according to claim 5, which is characterized in that the accommodating cavity and the plunger case
Setting graphite block is lubricated in (5.1.1).
12. wanting the described in any item positive couplings of 3-11 according to right, which is characterized in that multiple ball pin plungers (4) form one
Group is uniformly distributed in the circumferencial direction of the same diameter distance of the positive coupling, and in the diameter of the positive coupling
Ball pin plunger (4) group of different-diameter distance is respectively provided with to direction setting at least one set.
13. a kind of wind power generating set, which is characterized in that including wheel hub (1) and generator (5), the wheel hub (1) and institute
It states generator (5) and passes through according to claim 1-12 described in any item positive coupling connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110253.9A CN109253179A (en) | 2018-09-21 | 2018-09-21 | Rigid coupling and wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110253.9A CN109253179A (en) | 2018-09-21 | 2018-09-21 | Rigid coupling and wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109253179A true CN109253179A (en) | 2019-01-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811110253.9A Pending CN109253179A (en) | 2018-09-21 | 2018-09-21 | Rigid coupling and wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751193A (en) * | 2019-03-28 | 2019-05-14 | 新疆金风科技股份有限公司 | Wind power generating set |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100752510B1 (en) * | 2006-04-14 | 2007-08-29 | 유니슨 주식회사 | Wind energy converter with single main bearing |
| CN201621000U (en) * | 2009-12-31 | 2010-11-03 | 武汉国测诺德新能源有限公司 | Rocker structure flexible hub |
| US9074581B2 (en) * | 2012-06-12 | 2015-07-07 | General Electric Company | Cone angle insert for wind turbine rotor |
| CN107327509A (en) * | 2017-06-16 | 2017-11-07 | 北京金风科创风电设备有限公司 | Universal coupling |
| CN107687481A (en) * | 2017-07-20 | 2018-02-13 | 北京金风科创风电设备有限公司 | Universal coupling |
| CN108386318A (en) * | 2018-04-28 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set |
-
2018
- 2018-09-21 CN CN201811110253.9A patent/CN109253179A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100752510B1 (en) * | 2006-04-14 | 2007-08-29 | 유니슨 주식회사 | Wind energy converter with single main bearing |
| CN201621000U (en) * | 2009-12-31 | 2010-11-03 | 武汉国测诺德新能源有限公司 | Rocker structure flexible hub |
| US9074581B2 (en) * | 2012-06-12 | 2015-07-07 | General Electric Company | Cone angle insert for wind turbine rotor |
| CN107327509A (en) * | 2017-06-16 | 2017-11-07 | 北京金风科创风电设备有限公司 | Universal coupling |
| CN107687481A (en) * | 2017-07-20 | 2018-02-13 | 北京金风科创风电设备有限公司 | Universal coupling |
| CN108386318A (en) * | 2018-04-28 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set |
Non-Patent Citations (2)
| Title |
|---|
| 周明衡: "《联轴器选用手册》", 31 January 2001, 化学工业出版社 * |
| 建设部建筑机械研究所: "《液压传动译文集》", 31 December 1980, 建设部建筑机械研究所 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751193A (en) * | 2019-03-28 | 2019-05-14 | 新疆金风科技股份有限公司 | Wind power generating set |
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Application publication date: 20190122 |