CN102011712A - Flexible connection transmission mechanism of wind generating set - Google Patents
Flexible connection transmission mechanism of wind generating set Download PDFInfo
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- CN102011712A CN102011712A CN2010105751297A CN201010575129A CN102011712A CN 102011712 A CN102011712 A CN 102011712A CN 2010105751297 A CN2010105751297 A CN 2010105751297A CN 201010575129 A CN201010575129 A CN 201010575129A CN 102011712 A CN102011712 A CN 102011712A
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- 230000005540 biological transmission Effects 0.000 title abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 229910001141 Ductile iron Inorganic materials 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000005242 forging Methods 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008961 swelling Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y02E10/722—
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- Wind Motors (AREA)
Abstract
The invention discloses a flexible connection transmission mechanism of a wind generating set, which solves the problems of complex structure, heavy weight, high cost and large mounting difficulty existing in the prior art. The flexible connection transmission mechanism comprises a main machine seat, a main shaft, a speed increasing box and a generator, wherein the main shaft, the speed increasing box and the generator are arranged on the main machine seat; the main technical points of the mechanism are that: the front end of the main shaft formed by forging is supported by a fully sealed single bearing block fixed on the main machine seat, and the rear end of the main shaft is connected with an input shaft of the speed increasing box through a tension sleeve; the output shaft of the speed increasing box fixed on the main machine seat of which the seat body is cast by using a nodular cast iron material is connected with a rotating shaft of the generator through a flexible diaphragm coupling; the main shaft is parallel to the axis of the output shaft of the speed increasing box; and the main shaft and the output shaft are positioned on the two sides of the speed increasing box respectively. The mechanism has the advantages of obviously improving the transmission performance of the set and prolonging the service life, along with rational structural design, low failure rate, light weight and relatively low cost, is easy and convenient to mount and maintain and vibrates slightly, and the main shaft has obvious sealing and dust-proof effect.
Description
Technical field
The present invention relates to the transmission device that a kind of wind power generating set is used, particularly a kind of wind power generating set flexibly connects driving mechanism.It mainly is applicable to 1.5MW dual-feed asynchronous wind power generator group, also can be used for other wind power generating set.
Background technique
The driving mechanism of wind power generating set is one of important component part of wind-driven generator, and the transmission performance of itself has crucial influence to the performance of whole wind power generator.Wherein the main parts size of mainshaft mechanism comprises main shaft, bearing, bearing support etc.Major function is transmitting torque and the tight connection that realizes Transmitted chains, and it has born from the axial force of wind wheel and the moment of flexure of other directions.At present, the problem that in use exists of mainshaft mechanism mainly is: one, the fatigue ruption of main shaft under limited conditions and random load effect.Two, the sealing and dustproof effect of mainshaft mechanism is undesirable, causes the wearing and tearing of the premature failure of main bearing lubrication oil and aggravation main bearing and then influences working life of whole mainshaft mechanism.About wind power generating set driving mechanism existing report in some relevant patent documentations, as China Patent No. is that " transmission system of wind power generating set " of CN200720113561.8 provides a kind of cabin size shorter, lower velocity shaft is longer, lower velocity shaft adopts duplex bearing to support, the output shaft of gear-box and the main shaft of generator are rigidly connected with coupling, in the input that is arranged in parallel of the homonymy of gear-box, the structural type of output shaft, although it is shorter that it can reach the cabin size, the purpose that reduces cost, but because lower velocity shaft is longer, the lower velocity shaft manufacturing is difficulty, and stiffness is relatively poor.And being subjected to the rigidly connected restriction of lower velocity shaft supporting structure and generator shaft, it exists the structure of gear-box complicated, quality is big, cost increases, the speedup box high speed shaft defective that coaxality is had relatively high expectations during with the generator shaft installation.Support because of it adopts duplex bearing in addition, supporting with it the need increases a bearing support, so the quality cost of complete machine increases.Therefore its structure needs to improve, and transmission performance awaits further raising.
Summary of the invention
The purpose of this invention is to provide a kind of wind power generating set and flexibly connect driving mechanism, it has solved, and the complex structure that exists in the prior art, vibrations are big, Heavy Weight, cost height, problem that installation difficulty is bigger.Its reasonable in design, rate of fault is low, it is simple, convenient to install, safeguard, and quality is less, cost is relatively low, vibrations are little, obviously improve the transmission performance of unit, and the main shaft seal and the effect of preventing dust are remarkable, increase the service life.
The technical solution adopted in the present invention is: this wind power generating set flexibly connects driving mechanism and comprises main machine base and the main shaft that is installed on it, speedup box and generator, its technological points is: adopt the front end of the described main shaft of whole forging forming to be supported by the hermetic single shaft bearing that is fixed on the described main machine base, the rear end of described main shaft connects with the input shaft of described speedup box by the swelling cover, be fixed on and adopt output shaft that the nodular cast iron material casts the described speedup box on the described main machine base of pedestal to link by the rotating shaft of flexible membrane coupling and described generator, the parallel axes of the output shaft of described main shaft and described speedup box, and lay respectively at the both sides of speedup box, symmetric arrangement has the V-type shock mount between described generator and the described main machine base.
Support single shaft bearing hermetically sealed of described main shaft, comprise between bearing support and the bearing cap and between described bearing cap and oil sealing trim ring, use oil sealing sealing, between described main shaft and described oil sealing trim ring, encircle and seal with V with the sealing of O RunddichtringO.
Advantage and good effect that the present invention has are: because the main shaft of the whole forging forming of employing of the present invention adopts hermetic single shaft to hold support, connect with the input shaft of speedup box by the tensioning cover, therefore, reasonable in design, rate of fault is low, it is simple, convenient to install, safeguard, quality is less, cost is relatively low.In addition, because of adopting the flexible membrane coupling to connect the output shaft of speedup box and the rotating shaft of generator, so the coaxality requirement was lower when the rotating shaft of speedup box output shaft and generator was installed, installation is simple, that the speedup box output shaft is connected with the rotating shaft of generator is flexible good, transmission performance is good, reduce the vibrations of driving mechanism because of the main machine base that adopts the nodular cast iron material to cast pedestal, symmetric arrangement has the V-type shock mount between generator and main machine base, so obviously improve the transmission performance of unit.Main shaft seal and dustproof effect are remarkable, have therefore prolonged working life.It has solved the complex structure that exists in the prior art, Heavy Weight, cost height, problem that installation difficulty is bigger.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing and example.
Fig. 1 is the structural representation of a kind of driving mechanism of the present invention.
Fig. 2 is a kind of concrete structure schematic representation of main shaft among Fig. 1.
Fig. 3 is an I portion structure for amplifying schematic representation among Fig. 2.
Fig. 4 is an II portion structure for amplifying schematic representation among Fig. 2.
Sequence number explanation among the figure: 1 main shaft, 2 wind wheel locking plates, 3 bearing supports, 4 swelling covers, 5 speedup boxes, 6 flexible membrane coupling, 7 generators, 8 main machine bases, 9 locking nuts, 10 V ring, 11 oil sealing trim rings, 12 oil extraction mouths, 13 O RunddichtringOs, 14, oil sealing.
Embodiment
Describe concrete structure of the present invention in detail according to Fig. 1～4.This wind power generating set flexibly connects the parts such as main shaft 1, speedup box 5 and generator 7 that driving mechanism comprises main machine base 8 and is installed on it.Wherein adopt the front end of the main shaft 1 of whole forging forming to support by the hermetic single shaft bearing 3 that is fixed on the main machine base 8.The rear end of main shaft 1 connects with the input shaft of speedup box 5 by swelling cover 4.Being fixed on the output shaft that adopts the nodular cast iron material to cast the speedup box 5 on the main machine base 8 of pedestal links by the rotating shaft of flexible membrane coupling 6 with generator 7.The parallel axes of main shaft 1 and the output shaft of speedup box 5, and lay respectively at the both sides of speedup box 5, symmetric arrangement has the V-type shock mount between generator 7 and the main machine base 8.Machining after the main shaft 1 solid forging moulding, make main shaft 1 intermediate section have tapering, wind wheel locking plate 2 and axle head joint adopt big fillet excessive, and the main shaft section transitions is even, reduced stress greatly and concentrated, comprehensive mechanical performances such as main shaft tension, antitorque, fatigue strength are significantly improved.Main machine base 8 adopts the nodular cast iron materials to cast pedestal, and processing easily, resistance to shock are good.In addition, adopt method that theoretical algorithm combines with finite element analysis that structures such as gusset shape, position, thickness and sidewall shape, position, thickness and the position of opening of main machine base 8 pedestals and shape have been carried out optimal design, main machine base 8 comprises with the nodular cast iron to be the pedestal cast of material and spindle bearing holder attachment face, gear-box base attachment face, generator base attachment face, Yaw gearbox attachment face, cabin supporting base attachment face, go off course bearing ring gear attachment face and off-course brake attachment face on it is set.Adopt air foil to be connected between the passenger cabin afterbody of pedestal and the two side, between the two side of the passenger cabin inner chamber of pedestal stiffening rib is set, and be positioned at over against the symmetrical middle position of driftage bearing ring gear attachment face and off-course brake attachment face, spindle bearing holder attachment face and gear-box base attachment face are in the same plane, and the elevation angle of avoiding vane tip and tower collision is set, the off-load equalizing orifice that reduces stress concentration sensitivity is set on the pedestal wall.Therefore, be connected with air foil between the passenger cabin afterbody of pedestal and the two side, reduced the resistance and the stress of wind and concentrated; Stiffening rib rationally is set in the passenger cabin of pedestal, makes whole main machine base 8 stress distribution optimizations, have advantage in light weight, that bearing capacity is strong, stress concentration sensitivity is low, antivibration is effective.
Bearing support 3 employings of supporting the wind-driven generator front end are hermetically sealed, and seal with O RunddichtringO 13 hermetically sealed comprising between bearing support 3 and the bearing cap, with oil sealing 14 sealings, encircle 10 sealings with V between main shaft 1 and oil sealing trim ring 11 between bearing cap and oil sealing trim ring 11.Because of bearing support 3 dust sealing effects are remarkable, so prolonged the Acceptable life of bearing grease greatly, the working life of having improved rolling bearing simultaneously.The rear end that connects wind driven generator principal shaft 1 is overlapped between 4 inner and outer rings with the swelling of the input shaft of speedup box 5 and is had tapering, connects with bolt between the inner and outer rings, realizes the locking of swelling cover 4 and unclamps by regulating bolt.Connect by swelling cover 4, be connected reliably between wind driven generator principal shaft 1 rear end and speedup box 5 input shafts, easy installation and removal.Adopt flexible membrane coupling 6 between the output shaft of connection speedup box 5 and generator 7 rotating shafts, so the connection flexibility of diaxon is good, vibrations are little.The high speed shaft of wind driven generator principal shaft 1 and speedup box 5 is positioned at the both sides of speedup box 5, so the dynamic balance of speedup box 5 is good, shakes little.
Claims (3)
1. a wind power generating set flexibly connects driving mechanism, comprise main machine base and assemble main shaft on it, speedup box and generator, it is characterized in that: adopt the front end of the described main shaft of whole forging forming to support by the hermetic single shaft bearing that is fixed on the described main machine base, the rear end of described main shaft connects with the input shaft of described speedup box by the tensioning cover, be fixed on and adopt the nodular cast iron material to cast the output shaft of the described speedup box on the described main machine base of pedestal, rotating shaft by flexible membrane coupling and described generator links, the parallel axes of the output shaft of described main shaft and described speedup box, and lay respectively at the both sides of speedup box, symmetric arrangement has the V-type shock mount between described generator and the described main machine base.
2. wind power generating set according to claim 1 flexibly connects driving mechanism, it is characterized in that: the hermetically sealed of single shaft bearing of supporting described main shaft comprises between bearing support and the bearing cap with the sealing of O RunddichtringO, between described bearing cap and oil sealing trim ring, use oil sealing sealing, between described main shaft and described oil sealing trim ring, seal with the V ring.
3. wind power generating set according to claim 1 flexibly connects driving mechanism, it is characterized in that: adopt air foil to be connected between the passenger cabin afterbody of the pedestal of described main machine base and the two side, between the two side of the passenger cabin inner chamber of described pedestal stiffening rib is set, and be positioned at over against the symmetrical middle position of driftage bearing ring gear attachment face and off-course brake attachment face, spindle bearing holder attachment face and gear-box base attachment face are in the same plane, and the elevation angle of avoiding vane tip and tower collision is set, the off-load equalizing orifice that reduces stress concentration sensitivity is set on the described pedestal wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105751297A CN102011712A (en) | 2010-12-07 | 2010-12-07 | Flexible connection transmission mechanism of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105751297A CN102011712A (en) | 2010-12-07 | 2010-12-07 | Flexible connection transmission mechanism of wind generating set |
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| CN102011712A true CN102011712A (en) | 2011-04-13 |
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| CN2010105751297A Pending CN102011712A (en) | 2010-12-07 | 2010-12-07 | Flexible connection transmission mechanism of wind generating set |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234931B (en) * | 2013-06-19 | 2017-01-11 | 远景能源（江苏）有限公司 | Assembly method for a main rotor shaft and an installation tool thereto |
| CN110287598A (en) * | 2019-06-26 | 2019-09-27 | 太原科技大学 | A Design Method for Bearing Capacity of Expansion and Tightening Coupling Sleeves |
| CN110914533A (en) * | 2017-07-21 | 2020-03-24 | 通用电气公司 | Drive train assembly for a wind turbine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201165930Y (en) * | 2008-01-29 | 2008-12-17 | 包头市汇全稀土实业（集团）有限公司 | Wind Turbines |
| CN101476545A (en) * | 2008-01-02 | 2009-07-08 | 新疆金风科技股份有限公司 | Wind generator set |
| CN201326523Y (en) * | 2008-12-26 | 2009-10-14 | 华锐风电科技有限公司 | Transmission gear of wind generating set |
| CN201443474U (en) * | 2009-06-29 | 2010-04-28 | 山东长星风电科技有限公司 | Transmission device of wind generating set |
| CN201874757U (en) * | 2010-12-07 | 2011-06-22 | 沈阳远大机电装备有限公司 | Flexible connecting transmission mechanism of wind generating set |
-
2010
- 2010-12-07 CN CN2010105751297A patent/CN102011712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476545A (en) * | 2008-01-02 | 2009-07-08 | 新疆金风科技股份有限公司 | Wind generator set |
| CN201165930Y (en) * | 2008-01-29 | 2008-12-17 | 包头市汇全稀土实业（集团）有限公司 | Wind Turbines |
| CN201326523Y (en) * | 2008-12-26 | 2009-10-14 | 华锐风电科技有限公司 | Transmission gear of wind generating set |
| CN201443474U (en) * | 2009-06-29 | 2010-04-28 | 山东长星风电科技有限公司 | Transmission device of wind generating set |
| CN201874757U (en) * | 2010-12-07 | 2011-06-22 | 沈阳远大机电装备有限公司 | Flexible connecting transmission mechanism of wind generating set |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234931B (en) * | 2013-06-19 | 2017-01-11 | 远景能源（江苏）有限公司 | Assembly method for a main rotor shaft and an installation tool thereto |
| US9624902B2 (en) | 2013-06-19 | 2017-04-18 | Envision Energy (Denmark) Aps | Assembly method for a main rotor shaft and an installation tool thereto |
| CN110914533A (en) * | 2017-07-21 | 2020-03-24 | 通用电气公司 | Drive train assembly for a wind turbine |
| CN110914533B (en) * | 2017-07-21 | 2021-05-25 | 通用电气公司 | Drive train assembly for a wind turbine |
| CN110287598A (en) * | 2019-06-26 | 2019-09-27 | 太原科技大学 | A Design Method for Bearing Capacity of Expansion and Tightening Coupling Sleeves |
| CN110287598B (en) * | 2019-06-26 | 2022-07-05 | 太原科技大学 | Design method for bearing capacity of expansion coupling sleeve |
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Application publication date: 20110413 |