CN103867383B - Wind power yawing method for dual-rotor motor - Google Patents

Abstract

The invention discloses a wind power yawing method for a dual-rotor motor and belongs to the field of mechanical and electronic technology application. The wind power yawing method adopts a gearbox symmetric input mode and the comprehensive methods of 'parallel gear' and 'planetary gear opposite vertex method under the support of planetary carrier'; with the technology, a cabin can be separated from equipment such as a motor, the motor is not towed during steering, meanwhile, an electric control yawing method can be applied when two machines are adopted, the structure is simplified, and the wind power yawing method can be widely applicable to various ultra-large type wind power generation occasions.

Description

The wind power yawing method of double-rotor machine

The invention belongs to mechanotronics application；It is specifically the device converting wind energy into kinetic energy and generating Among change speed gear box and yaw device.

Electromotor rotates because of box haul, and motor down-lead is typically derived by sliding brush (electrode), and the unit because of more than 10kw Deadweight problem it is impossible to be guided by rudder；Impeller is separated by this method with motor, is not required to need traction motor again during steering, with When can be suitable for a kind of automatically controlled driftage method when using two-shipper, and structure simplify, can be widely applied to various wind-power electricity generation occasions In

It is an object of the invention to solving the weak point of prior art, a kind of change speed gear box of bearing-free side pressure and provinces and regions are inclined The birotor driftage method of plane structure, the ripe electro-mechanical arts achievement of application, with a kind of automatically controlled driftage method, need not be increased other and set Standby, structure greatly simplify.

The deadweight problem of the unit of the feature of the present invention: more than 10kw, dexterously constraining impeller and motor steering is in divide From state, it is not required to during steering need traction motor again, a kind of automatically controlled driftage method can be suitable for simultaneously when using two-shipper, and structure letter Change, can be widely applied in various wind-power electricity generation occasions.

The key problem in technology of the present invention:

[shaftless knob roller box portion of techniques is crucial]

The essential condition of this technology is derived from 2 parts: is first: (moment) input shaft (9) and (10), and meets basic Contrary etc. moment and direction of rotation；And the axle center of 2 axles is on same straight line.Next to that: 2 have same to section (1) and therewith The housing (2) of function；2 all support to exist each axle of multiple degrees of freedom rotation to section and housing: such as input shaft/output shaft/with one heart Bidentate wheel assembly etc..

The key mechanism of bearing-free side pressure is: in intermediate conveyor, all bevel gears being related to are all by symmetrical 2 more Bevel gear drives；This 1 pair of power is just 1 pair of couple；Equal in magnitude and in opposite direction, pure moment can only be produced, do not have any The generation made a concerted effort；Infringement to bearing is minimum.

For the transmission means of inside and outside transmission axle gear ring (20) and (21), the mode obtaining 0 bearing lateral pressure needs to adopt " planet carrier supports lower planetary gear to the method for top " is realizing: so-called is by 2 on the double-deck planetary gear on planet carrier to top method One group, set up a phase tangent cylinder (100) each other, the opposite driving force of inside and outside transmission axle gear ring (20) and (21) is offset in phase On tangent cylinder (100)；And take less than on planetary gear bearing, become the lateral pressure reducing bearing of the order of magnitude；2 tangent Cylinder (100) be close to can be need one of them planetary gear shaft elastic stressing come to obtain it is also possible to lean on bearing Natural gap, obtains during running reinforcing in addition.

For reducing volume, " combination gear " off-loading side can be adopted at the position of such as similar output shaft gear (5) and (6) Method (to share the load of tooth on gear) it may be assumed that because gear drive is an approximate drive mechanism at the uniform velocity, any parallel institution The unbalance of the transmission of contact point power that instantaneous non-linearity drive leads to will be faced and lead to catastrophic abrasion consequence；Double-deck Torque gear can solve this problem；When being used double-deck torque gear as intermediary's combination gear: the minim gap between gear To play a significant role in conjunction with elastic force；Double-layer gear is supported between gap the torsion of elastic force up and down；Biography so could be smoothed Dynamic state, reaches the effect that gear load is shared in equilibrium.

[birotor generator driftage portion of techniques is crucial]

Due to coaxial (electromotor) 2 rotor (11) and (12), there is the winding on independent (electromotor) stator (13)；From From the perspective of moment: electromotor should be to input torque electromagnetic damper, and the numerical value of damping and winding state have Close, increase or decrease assists winding and can change damping state；Increase winding and then increase damping, reduce winding and then reduce damping.

As broken the balance of double-rotor machine winding, the balance of the damping torque of bimoment input shaft will be broken, produce net Damping torque difference.

Another kind of method is: the rotating part corresponding to single rotor is carried out with brake and processes it is also possible to equally destroy 2 axles Damping torque balance, produce net damping torque difference；Yaw direction depends on returning associated by that rotor of braking Transfer part is divided.

The statement detailed to above method and technology in a word: " combination gear " intermediary load reducing measure；It is by offset gear (70) (namely double-deck torque gear) (construction of (70) be the gear (70a) in the coaxial same footpath independent by 2 pieces and (70b) with Axle center and (teeth line is mutual；Teeth line is the line that one group of highest crown point is constituted) half gear misplacing merges composition)； By rotation elasticity block (66) by 2 half (block) gear resilient connection；Offset gear (70) Elastic Teeth is together in more than 2 (conventional) tooth Between wheel；Minim gap between gear will play a significant role with reference to elastic force；Double-layer gear is supported by the torsion of elastic force up and down Between gap；Rotation elasticity between 2 pieces (70a) (70b) can reach the purpose that torsion transmits between (70a) and (70b)； Drive state so could be smoothed, reach equilibrium and share the effect of gear load, due to gear drive be one approximate at the uniform velocity Drive mechanism, any parallel institution all can face the unbalance of the transmission of contact point power that instantaneous non-linearity drive leads to and lead to Catastrophic abrasion consequence；Its basic feature is: the construction of offset gear (70) (namely double-deck torque gear) is by 2 pieces solely Vertical coaxial gear (70a) and the dislocation of (70b) (mutual) teeth line combine；The connection of gear (70a) and (70b) be by Rotation elasticity block (66) couples；The teeth line of in-line gears (70a) and (70b) is (in the location status of 0 elasticity of torsion power) Stagger certain angle.

" planetary gear under planet carrier support is to top method " load reducing measure；Main by transmission axle gear ring (20) and (21), OK The planetary gear of carrier, planet axis and with raised cylinder (100) 2 one group is (respectively by double-deck gear ring (20) and (21) tooth Close), energy cylinder (100) tangent to each other is set up on planetary gear, cylinder (100) can be by 2 counter-rotational defeated axle gear rings And the opposite driving force of (21) is offset (20)；And major part takes less than on planetary gear bearing, become the order of magnitude reduces axle The lateral pressure holding；The elastic stressing being close to the planetary gear shaft that pressure can be from one of them of 2 phase tangent cylinders (100) Solve to obtain the natural elasticity that can also lean on axle and bearing；Its feature: the gear ring (20) of 2 opposite rotations and (21) are ratcheting respectively 2 planetary gears；2 one group of planetary gear on planet carrier, layering is installed, and respectively has a phase tangent cylinder (100)；2 tangent The power that is close to of cylinder (100) can be from the elastic stressing of the planetary gear shaft to one of them to obtain it is also possible to lean on axle The natural gap held, by run in naturally reinforcing in acquisition.

Bearing-free side pressure change speed gear box, (connects respectively from 2 to section (housing can also have this function), 2 (two-way) input shafts Have wheel hub, and blade be provided with wheel hub), input bevel gear to, intergrade transmission bevel gear to, output stage bevel gear pair (can be single), off-load gear mesh (can be single) etc. form；Basic functional principle is: when moment of face is defeated by 2 (two-way) input shafts Fashionable, due to the moment of the input of 2 input shafts in opposite direction so that input shaft is contrary with the rotation direction of output shaft, input Axle and output shaft drive 2 (one-level) input bevel gears (a pair) respectively；If during using intergrade transmission bevel gear pair, one-level To by the moment input tooth driving intergrade to transmit bevel gear pair, intergrade transmits the moment output of bevel gear pair to input bevel gear Tooth and moment output gear pass through that fluted disc is rigidly connected and to input tooth coaxial with output gear corresponding axle；Intergrade transmits umbrella tooth Wheel to can also drive again next stage intergrade transmission bevel gear pair；Afterbody center tooth drives output stage bevel gear pair, by The outside through-put power of output shaft corresponding to output stage gear；Off-load gear mesh (can single use) be for intergrade gear To input stage and output stage gear mesh used in parallel, in order to off-load gear transmit moment load；Off-load gear mesh in Intercaste transmits the 2 of bevel gear pair relatively between output fluted discs, with the gear of the input fluted disc of next intergrade or output stage it Between be by a rotating shaft extended line pass through power input shaft heart line gear transmit；All intergrades and output stage gear The extended line of rotating shaft is all by power input shaft heart line；2 are one to section (housing can also have this function) turns around output shaft Dynamic revolving body, the axle of all of intergrade bevel gear is all to support revolution from 2 to section, and its gyroaxis is vertical with output shaft；Shell To a part of section function, (output only exists fixed-axis rotation with it and closes constraint output shaft rotation body (being also to have) 2 first System), in addition also constrain 2 (two-way) input shafts, make 2 (two-way) input shafts can only pass through housing axis hole (axis of axis hole with Output shaft is vertical) revolution；Thus the reverse power input of 2 (two-way coaxial) input shafts, it is eventually converted into defeated with original moment Enter the vertical coaxial moment output in direction (vice versa: as by inputoutput pair easily, being then deep red speed case)；In a broad sense；2 to section Function be that can to run through itself input shaft freely rotatable and can support output shaft；The no axial compression of another kind of umbrella tooth (parallel axes) The version that output shaft is in parastate with input shaft is: bevel gear；Also has a kind of spur gear weak axial compression variable rate transmissions mechanism (being substantially conventional planet gear): by ring gear, planetary gear, sun gear；Coaxial, the central axial moment by 2 layers of planetary gear Offset, the moment perpendicular to central axis direction is also offset；Its feature: employ 2 in gearbox designs and (or have 2 to section to section The housing of function, basic feature: at least carry the section of more than 2 direction rotating shafts) as input shaft and output shaft and intergrade The countershaft load bearing component of transmission bevel gear；Input bevel gear and intergrade transmission bevel gear be all paired and axial line be all with The axial line of output gear is vertical；2 concentric shafts (7) being exported through change speed gear box (prime) speed change and (8) may act as becoming The final output of fast case uses, and " planet carrier supports lower planetary gear to the method for top " is carrying out lower 1 grade of speed change；Relate in this change speed gear box And to gear stage in relatively small gear i.e. can be be may also be employed using the off-loading mode increasing intensity and contact area " combination gear " load reducing measure can also be adopted again.

The wind power yawing method of double-rotor machine, is 2 power output shafts contrary by 2 rotation directions by coaxial line Directly on 2 (rotor dynamic) input shafts of birotor generator, birotor corresponds to respective stator coil and enters docking respectively Row generates electricity；When changing load (generated energy) ratio of stator coil of double-rotor machine, (load percentage changing 2 motors can (also brake modes directly to change the moment state of individual rotor to produce excess torque；Produce excess torque), make birotor Velocity of rotation change)；The twin shaft of electromotor perpendicular to tower (becoming 90 degree) with input shaft；It is characterized by: in driftage equipment Employ birotor generator as vitals；The twin shaft of electromotor hangs down parallel to tower；The generation of the power of driftage is profit Double with birotor generator (having 2 to have common axial line and the independent rotor rotating, each rotor has independent rotary shaft) The change of the resistance difference suffered by axle or rotor is producing yawing.

The change of described resistance difference is by following several ways: first: respective corresponding to each birotor The composition of generating winding is divided into main winding and auxiliary winding, and (main winding produces the generation current of the overwhelming majority, and auxiliary winding then produces little Partial generation current；When generator windings are actively connected with the electric current of certain way, electromotor can be equal to one electronic Machine, produces rotating torque；Change motor 2 rotor (shunting or loading: i.e. the access of auxiliary winding or open circuit, there is electric current during access Flow through and be jointly superimposed generation electromagnetic damping with main winding) damping situation, just change the damping torque of 2 rotors, but driftage Rotating shaft just produces extra moment output, carries out yaw rotation (direction and big I manual control)) in addition in the case of this kind Can be 2 rotors winding no major-minor point, by outside automatically controlled by way of defeated to change the electric current of winding corresponding to 2 rotors Go out, equally reach the purpose changing 2 rotor dampings；Furthermore: can also be using brake block deceleration method (axle to 2 rotors or turn Son itself is braked)；Also have: can also (electromagnetic brake set up by countershaft or rotor, when this electromagnetism using electromagnetic braking or motor method The winding of brake is actively connected with during the electric current of certain way it is also possible to be equal to a motor, produces rotating torque)；Again Secondly: single rotor can also be adopted --- the birotor generator that single stator rotates opposite each other is (to unofficial biography in the way of sliding brush Transmission of electricity power), brake block deceleration method noted above, electromagnetic braking or motor method can be taken to birotor (1 rotor and 1 rotation stator) And stator coil major-minor winding switching method, to produce yawing.

Described birotor generator is: has the rotor of 2 common axial lines, 2 rotors have independent rotating shaft；Rotor Diameter can be the same or different.

With reference to a preferred embodiment present invention is made explained further (known such as jump ring in structure, Pivot pin, key etc. does not draw place).

[Fig. 1] (no axial compression) change speed gear box and birotor generator cabin layout schematic diagram.

[Fig. 2] shaftless pressure and speed box structure and birotor generator driftage principle schematic.

[Fig. 3] disk tooth multipole shaftless knob roller box principle schematic diagram..

[Fig. 4] another kind bevel gear multipole shaftless knob roller box principle schematic diagram..

[Fig. 5] " combination gear " off-loading method schematic diagram.

[Fig. 6] " planetary gear is to top method " schematic diagram.

Illustrate:

(1) 2 to section

(2) housing

(3) (4) input shaft bevel gear

(5) (6) output shaft gear

(7) (8) output shaft

(9) (10) input shaft

(11) (12) (electromotor) rotor

(13) (electromotor) stator

(14) coaxial bidentate wheel assembly

(15) (16) 2 to section rotary shaft

(17) (18) coaxial internal-external gear

(19) bearing

(20) transmission axle gear ring inside and outside (21)

(22) (23) sun (tooth) wheel

(24) transmission axle inside and outside (25)

(26) output shaft inside and outside (27)

(28) planet carrier

(29) double-planet (tooth) wheel common axis

(29a) planet (tooth) wheel shaft

(29b) planet (tooth) wheel shaft

(30) (31) planetary gear

(32) gear ring and the ratcheting position of planet axis

(33) bearing

(40) 2 to section

(41) (51) output shaft

(52) bevel gear before and after (43) are coaxial

(45) transmission axle toothed disc inside and outside (44)

(47) transmission axle inside and outside (46)

(42) (48) output shaft gear

(49) (50) inside and outside transmission shaft bevel gear

(54) coaxial bidentate wheel assembly

(53) central shaft

(55) bidentate wheel assembly rotating shaft

(66) rotation elasticity block

(67) axle and bearing support members

(68) tooth bar

(69) rotary gear shaft

(70) offset gear

(70a) (mutual) dislocation half tooth

(70b) (mutual) dislocation half tooth

(71) transmit gear

(72) (72) teeth line

(90) main shaft

(91) shaftless pressure and speed case

(92) birotor generator

(93) cabin

(94) (95) wheel hub

(96) cabin/pylon joint portion

(97) support shaft

(98) pylon

(100) phase tangent cylinder

As [Fig. 1]:

2 main shafts (90) are point-blank；The rotation direction of wheel hub (94) (95) is contrary, and shaftless pressure and speed case (91) will Be transferred to after the reverse rotation speedup of 2 wheel hubs in 2 rotating shafts of birotor generator (92), cabin (93) can by one with double One System of Rotating about Fixed Axis of rotor generator (92) axes extending line；Cabin/pylon joint portion (96) can be placed sliding plate and can also be used Magnetic suspension off-loading.

The advantage of above-mentioned construction is to meet 2 equilibrium conditions；Statics balance and kinetics even up weighing apparatus；Produced by driftage The precession moment of gyro just cancel out each other, be in the structure act on cabin (93), cabin/pylon will not be combined The sliding plate in portion (96) and central support shaft (97) produce extra moment, to pylon (98) also no ancillary damage power.

Shown in [Fig. 2]

Shown in Fig. 2 a: 2 support whole rotating mechanisms, input shaft (9) to section (1) and (having 2 to section function) housing (2) (10) drive input shaft bevel gear (3) and (4), and input shaft bevel gear (3) and (4) driving output shaft gear (5) and (6), because And output shaft (7) and (8) produce along rotating torque counterclockwise.

Shown in Fig. 2 b: the stator (13) of birotor generator is fixed, (electromotor) birotor (11) and (12) Along opposite direction rotating not counterclockwise, and the respective stator coil of correspondence produces induced current.

(as shown in Figure 2 d: d is c along the profile at k) shown in Fig. 2 c: it is the transmission shifting mechanism of 2 grades of bevel gears, Both perpendicular to input shaft (9) (10) and on the direction s of output shaft (7) (8), increase and be mounted with s as rotary shaft Coaxial bidentate wheel assembly (14)；2 coaxially inside and outside (umbrella) gears (17) and (18) are had on coaxial bidentate wheel assembly (14)； (15) and (16) are 2 to section rotary shaft, in section (1), the insertion of another axle head (has 2 to section function for axle head insertion 2 In housing bore)；Bearing (19) is used for rotary part everywhere；In figure shows: input shaft (9) (10) passes through gear (3) and (4) The interior bevel gear (17) of 2 opposed installations of direct drive；So 2 outer bevel gears (18) by drive output shaft bevel gear (5) and (6) output shaft (7) (8), is made to produce moment output.

Shown in Fig. 2 e: be a kind of birotor generator of inner and outer rotors；The diameter of birotor (11) (12) is different, permissible 2 rotors on same cylindrical region set；Save almost 50% space.

As shown in Figure 3:

For the prime part of change speed gear box, h is rear class part, and g is h part along the profile at k.

Output shaft (7) and (8) drive respectively inside and outside transmission axle gear ring (20) and (21), planet (tooth) wheel (30) and (31) leads to Cross fixing and free to rotate (the ratcheting position such as tooth with gear ring of dual planetary gear common axis (29) in installation planet carrier (28) Shown in circle and the ratcheting position of planet axis (32))；Inside and outside transmission axle (24) and (25) are connected with (prime) output shaft (7) and (8)； In opposite direction due to 2 layers of planetary gear rotation, planet carrier (28) will not rotate, and final rotating torque is by the sun (tooth) Wheel (22) and (23) output, is derived by inside and outside output shaft (26) and (27)；The necessary place of each rotating shaft is provided with bearing (33).

As shown in Figure 4: j is the prime of change speed gear box；K is rear class；L is the profile in a position of rear class k.

Prime output shaft (7) and (8) are connected with inside and outside transmission axle (47) and (46)；And transmission axle toothed disc inside and outside driving And (44) are opposite rotates (45)；The opposite inside and outside transmission shaft bevel gear (49) rotating and (50) will drive coaxial bidentate wheel assembly (54) (outward) coaxially rear bevel gear (43), then drives output shaft gear (42) and (48) by 1 to coaxially front bevel gear (52)； Finally by output shaft (41) and (51) output torque.

It is emphasized that: the power suffered by all gears is all to be occurred with paired couple, thus the bearing of all rotating shafts No perpendicular with axle central shaft (53) and bidentate wheel assembly rotating shaft (55) component of suffered power；Bearing perpendicular to axial side Pressure is 0.

2 play an important role to section (40), and it is the vitals accepting 2 vertical direction rotating shafts, maintains output shaft (41) And the integration of (47) and bidentate wheel assembly rotating shaft (55).

As shown in Figure 5:

During upper and lower 2 toothed rack (68) move toward one another, torque transmitting is given 2 transmission gear (71), offset gear (70) will Realize the moment of elasticity transmission relation between 2 gears (71): the construction of offset gear (70) is: by 2 pieces of independent coaxially same footpaths Gear (70a) and (70b) (mutual) dislocation half tooth composition；By rotation elasticity block (66) rigid attachment in-line gears (70a) and (70b)；Figure y is profile at s for the figure x；(70a) and (70b) 0 elasticity of torsion power position when 2 dislocation half teeth teeth line And (73) are not neat alignment (72)；But certain angle that staggers, as shown in ray h and v；When rotary gear shaft (69) conduct During the output of moment, another transmission gear (71) in a distant place will play elastic auxiliary transmission effect；Power one side of tooth bar (68) Face is directly transmitted by the affiliated gear (71) of (69), another passage be via away from gear (71) pass through offset gear (70) Transmission；(mutual) dislocation half tooth (70a) and (70b) transmission gear (71) fluid-tight engagement with 2 sides respectively in transmission torque, absolutely Most of torsion is to be transmitted by rotation elasticity block (66)；Rotation elasticity block available buffer gear drive etc. various nonlinear not The impact of good transmission；Moment is made steadily to export, reducing load increases the life-span.

In figure (67) is axle and bearing support members.

As shown in Figure 6:

Planet (tooth) wheel shaft (29a) and planet (tooth) wheel shaft (29b) are 2 independent axles, right angle setting planet carrier (28) on；(30) and (31) be planet (gear) wheel (still meet the layering with inside and outside transmission axle gear ring (20) and (21) of Fig. 3 Ratcheting relation), figure q is the profile at right figure w；The critical component forming gear forces counteracting is 2 coaxial with wheel (30) (31) Phase tangent cylinder (100), rotation direction is just contrary, thus 2 phase tangent cylinders (100) are pure rolling relations, fricton-tight to contact Disappear the power being mutually close to；(22) (23) are that the sun (tooth) is taken turns, and (19) are bearing.

Claims (2)

1. the wind power yawing method of birotor generator, is 2 power output shafts contrary by the rotation direction by coaxial line Directly, on 2 rotor dynamic input shafts of birotor generator, 2 rotors of birotor generator are corresponding respective respectively for docking Stator coil generated electricity；Send out it is simply that changing birotor when changing the load percentage of stator coil of birotor generator The load percentage of motor can produce excess torque, or to be produced using the moment state that brake modes directly to change individual rotor Raw excess torque, so that the velocity of rotation of the 2 of birotor generator rotors changes；2 rotors of birotor generator move Power input shaft is parallel to tower, and becomes 90 degree with power output shaft；It is characterized in that: employ birotor in driftage equipment and send out Motor is as vitals；The generation of driftage power is 2 rotor dynamic input shafts or 2 rotors using birotor generator Producing yawing, this birotor generator has 2 to have common axial line and independent turn for the change of suffered resistance difference Dynamic rotor, each rotor has independent rotary shaft, and the diameter of 2 rotors is identical or different.

2. birotor generator according to claim 1 wind power yawing method it is characterised in that: described resistance difference Change is by following several ways: the composition of the respective generating winding corresponding to (1) 2 rotor be divided into main winding and pair around Group；Main winding produces the generation current of the overwhelming majority, and auxiliary winding then produces the generation current of fraction；When birotor generator around When group is actively connected with the electric current of certain way, birotor generator is equal to a motor, produces rotating torque；Change double turning The damping situation of sub- 2 rotors of electromotor, just changes the damping torque of 2 rotors, and driftage rotating shaft just produces extra moment Output；Or when 2 rotors winding no major-minor timesharing, by outside automatically controlled by way of come to change corresponding to 2 rotors around The electric current output of group, also can reach the purpose changing 2 rotor dampings；(2) use the rotor to 2 rotors for the brake block deceleration method Power input shaft or rotor are braked in itself；(3) using electromagnetic braking, electromagnetism is set up to rotor dynamic input shaft or rotor Brake, when the winding of this electromagnetic brake is actively connected with the electric current of certain way, is equal to a motor, produces and rotate Moment.