CN101626175B - Stator-rotor mechanism of direct drive type wind generating set - Google Patents
Stator-rotor mechanism of direct drive type wind generating set Download PDFInfo
- Publication number
- CN101626175B CN101626175B CN2009101820882A CN200910182088A CN101626175B CN 101626175 B CN101626175 B CN 101626175B CN 2009101820882 A CN2009101820882 A CN 2009101820882A CN 200910182088 A CN200910182088 A CN 200910182088A CN 101626175 B CN101626175 B CN 101626175B
- Authority
- CN
- China
- Prior art keywords
- bearing
- rotor
- clutch shaft
- stator
- axle sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a stator-rotor mechanism of a direct drive type wind generating set, belonging to the technical field of wind driven generators. The stator-rotor mechanism comprises a central shaft, a stator and a rotor, wherein the stator is arranged on the central shaft and forms a stator radial plate; and the rotor is arranged on the central shaft and matched with a stator air gap, and is provided with a rotor radial plate and a rotor end cover. The stator radial plate is directly fixed with the central shaft, the centre of the rotor radial plate forms a first bearing seat ring, and the first bearing seat ring is rotatablely arranged on the central shaft through a first bearing seat ring transition mechanism; the rotor end cover is fixed with the rotor, the centre of the rotor end cover forms a second bearing seat ring, and the second bearing seat ring is rotatablely arranged on the central shaft through a second bearing seat ring transition mechanism. The invention has the advantages of ensuring the consistency of the air gap between the stator and the rotor, improving movement stability of the rotor, and ensuring even load of the stator and the rotor on the central shaft, thereby avoiding the deformation of the central shaft and reducing the processing difficulty of the central shaft.
Description
Technical field
The invention belongs to technical field of wind power generator, be specifically related to a kind of stator-rotor mechanism of direct-drive aerogenerator group.
Background technology
Wind resource is inexhaustible natural resources, utilizes wind power generation can reduce the pollution of environment and saves non-renewable such as resources such as coal and oil.Wind generating technology can be applied in a flexible way, that is: both can be incorporated into the power networks, also can be from the net independent operating, can also combine with other energy such as solar energy constitutes the Blast Furnace Top Gas Recovery Turbine Unit (TRT) that wind power generation and solar power generation have both mutually (the large power energy storage wind turbine generator that can announce referring to Chinese invention patent Granted publication CN1313730C this).
Wind energy is to clean most and non-pollution of renewable energy, and global available wind energy resources is about 20,000,000,000 kilowatts, for utilizing 10 times of water resources.Therefore, if utilize 1% wind energy energy, can produce the electric weight of the 8-9% of the existing generating in whole world total amount.China can utilize wind energy resources to be about 1,600,000,000 kilowatts, and be about 2.53 hundred million kilowatts of fine value are wherein arranged.
At present, what Wind Power Utilization better, development is very fast and technology is more advanced is the U.S., U.S.'s wind-force generate output accounts for about 50% of world's wind power generation capacity, and secondly, the development of the wind power generation of country such as Brazil, Denmark, Holland, Germany and Britain is also very rapid.China utilizes wind power generation since the fifties in last century, and to the eighties, it is ripe and stable that the minitype wind power generation technology is tending towards.By the end of the year 1994, China in the Inner Mongol, Xinjiang and ground such as coastal extensively promotes small-sized wind power generator, and built up 13.5 ten thousand.
In recent years, China very payes attention to wind power generation, wind-powered electricity generation is greatly developed in areas such as selected Guangdong, Hainan, Fujian, Shandong, Inner Mongol and Xinjiang, and formulating long-range wind power generation planning, especially, the emphasis of national new forms of energy policy also is to greatly develop and accelerate to develop wind power generation.
The direct-drive aerogenerator group is the at present universally acknowledged simple and low machine of maintenance operation cost of a kind of drive mechanism, also be tending towards using in China in recent years, for example Chinese Xinjiang Jin Feng Science and Technology Co., Ltd. has designed and manufactured the direct-drive aerogenerator group of 1.5MW (megawatt).
Wind-driven generator is that stator and rotor are assemblied on the central shaft, be installed on the column foot by cabinet again, when wind drive rotor (by being installed on epitrochanterian blade) is made relative stator and rotated, realize wind energy is converted to mechanical energy, and then convert electric energy to and generate electricity by mechanical energy.Not ccontaining doubting, stator, rotor (abbreviation rotor) structure are the core components of wind turbine generator, structure and matching requirements for rotor are comparatively harsh usually, because uniformity of the air gap between stator and the rotor (also claiming consistency) and rotor all can exert an influence to the performance of the allomeric function of wind turbine generator with respect to the stationarity of stator running.
The structure of the stator-rotor mechanism of the direct-drive aerogenerator group of widely being used in the prior art as shown in Figure 3, comprise central shaft 1 (also claiming fixed axis or back shaft), stator 2 and rotor 3, on central shaft 1, extend the stator mounting flange circle 11 that constitutes one together with central shaft 1, stator 2 is by stator disc 21 and fixing by means of one group of bolt and described stator mounting flange circle 11, and rotor is by rotor and disc 31 and fixing with the rotor axle sleeve 311 with fan blade matching seat 3111 by means of one group of fastening bolt, rotor axle sleeve 311 is by before the rotor axle sleeve, rear bearing 3112,3113 are arranged on the described central shaft 1, wherein, described stator 2 realizes that with described rotor 3 air gap cooperates.
There is following technical problem by said structure shown in Figure 3: the one, the connection poor reliability of stator 2 and central shaft 1, because stator 2 is to realize by the bolt that the hole on the stator fixed center hole on the stator disc 21 that is opened in stator 2 and the stator mounting flange circle 11 that is opened in central shaft 1 is a dozens of by one group of quantity that the flange face of cylinder cooperates to locate, so certainly exist fit clearance between the flange face of cylinder of stator fixed center hole and stator mounting flange circle 11, can't guarantee the cylindrical of stator 2 and the end face coherence request with respect to the position of central shaft 1 during assembling, the concentricity when promptly installing is poor; The 2nd, the rotor disc 31 of rotor 3 is that cylinder cooperates with being fixedly connected of rotor axle sleeve 311 equally, promptly on rotor axle sleeve 311, constitute one and be used for the rotor mounting flange circle 3114 that confession rotor 3 is fixed, realize cooperating the location by the fastening bolt that one group of quantity is dozens of with rotor mounting flange circle 3114 faces of cylinder, so be opened between the flange cylinder of rotor fixed center hole on the rotor disc 31 and rotor mounting flange circle 3114 and similarly certainly exist fit clearance, can't ensure the cylindrical of rotor 3 and end face coherence request during assembling with respect to the position of central shaft 1, concentricity when promptly installing is poor, thereby influences the uniformity of the air gap between stator 2 and the rotor 3; The 3rd, because the physical dimension of rotor 3 is huge, causes the poor rigidity that connects mutually with rotor axle sleeve 311, thereby influence the stationarity that rotor 3 turns round; The 4th, because stator 2 is arranged in the single cross section of central shaft 1 by stator mounting flange circle 11, and the rotor mounting flange circle 3114 of rotor 3 by rotor axle sleeve 311 is arranged in the single cross section of central shaft 1, add forward and backward bearing 3112, the 3113 bearing load skewness of armature spindle, so under the effect of stator and rotor 2,3 deadweights, central shaft 1 can be subjected to bigger moment of flexure and be out of shape, aggravate further rotor 3 running stationarity and influence the uniformity of the air gap between the stator and rotor 2,3; The 5th, the difficulty of processing of central shaft 1 is big, because need process stator mounting flange circle 11 on axis body, again, the difficulty of processing of rotor axle sleeve 311 is big, because need process rotor mounting flange circle 3114.
Said structure exposed 5 be short of into present industry and very paid close attention to and the phase is got the technical problem of solution, the applicant expects the early settlement foregoing problems too as the insider, and carried out literature search, yet, do not detect up to now relevant for the technology enlightenment that solves foregoing problems.Consider that for the autonomous angle of industry the applicant has carried out a large amount of explorations, technical scheme described below produces under this background.
Summary of the invention
Task of the present invention is to provide a kind of and helps to improve the reliability that stator and central shaft connect firmly and improve the effect that rotor matches with central shaft and use the consistency that ensures the air gap between stator and the rotor, help improving the stationarity of rotor running and stator and rotor and evenly use in the center load on axle and avoid the central shaft distortion, be of value to the manufacture difficulty that reduces central shaft and use the stator-rotor mechanism that embodies the simple direct-drive aerogenerator group of manufacturing.
Task of the present invention is finished like this, a kind of stator-rotor mechanism of direct-drive aerogenerator group, comprise central shaft, be located on the central shaft and constitute the stator of stator disc and be located at cooperate with the stator air gap and rotor that have rotor disc and rotor endcap on the central shaft, described stator disc is directly fixed with described central shaft, the central authorities of described rotor disc constitute a clutch shaft bearing seat ring, and this clutch shaft bearing seat ring is arranged on the central shaft by clutch shaft bearing seat ring transition mechanism rotationally; Described rotor endcap and described rotor are fixed, and constitute one second bearing race in the central authorities of rotor endcap, and this second bearing race is arranged on the central shaft rotationally by the second bearing race transition mechanism.
In a specific embodiment of the present invention, be equipped with first, second back-up ring on the described central shaft, described clutch shaft bearing seat ring transition mechanism matches with first back-up ring, the described second bearing race transition mechanism matches with second back-up ring, the clutch shaft bearing seat ring chamber of described clutch shaft bearing seat ring is a conical cavity, and the second bearing race chamber of second bearing race of described rotor endcap is a conical cavity.
In another specific embodiment of the present invention, described clutch shaft bearing seat ring transition mechanism comprises the clutch shaft bearing cover, clutch shaft bearing, first axle sleeve, the clutch shaft bearing back-up ring and the first axle sleeve back-up ring, the clutch shaft bearing cover is placed in the described clutch shaft bearing seat ring chamber, the outer wall of this clutch shaft bearing cover constitutes first male cone (strobilus masculinus), first male cone (strobilus masculinus) and described clutch shaft bearing seat ring chamber cone match, clutch shaft bearing is placed in the clutch shaft bearing cover, this clutch shaft bearing constitutes one first cone bearing chamber, first axle sleeve is placed in the described first cone bearing chamber, the first axle sleeve back-up ring matches with first axle sleeve, clutch shaft bearing back-up ring lid is put outside clutch shaft bearing cover and clutch shaft bearing, and fix with described clutch shaft bearing seat ring, wherein, described first axle sleeve cooperates with the described first back-up ring end face.
In another specific embodiment of the present invention, the inwall of one end of described clutch shaft bearing cover constitutes a clutch shaft bearing limited step, described clutch shaft bearing contacts with the clutch shaft bearing limited step and is spacing by the clutch shaft bearing limited step, and the inwall that overlaps at clutch shaft bearing is provided with first ceramic wearing coat.
In another specific embodiment of the present invention, described first axle sleeve constitutes the first axle sleeve male cone (strobilus masculinus), the chamber wall cone match in this first axle sleeve male cone (strobilus masculinus) and the described first cone bearing chamber, and constitute one first at first axle sleeve on the outer wall of an end of described axle sleeve back-up ring and connect bead, and constitute a groove on the inwall of the described first axle sleeve back-up ring, described first connects bead matches with groove.
Go back in the specific embodiment of the present invention, the accent position in described clutch shaft bearing seat ring chamber constitutes first, second step, and described clutch shaft bearing back-up ring constitutes the 3rd, the 4th step towards a side of described clutch shaft bearing seat ring, wherein, the 3rd step is corresponding with described first step and match, and the 4th step is corresponding with described second step and match.
More of the present invention and in specific embodiment, the described second bearing race transition mechanism comprises second bearing holder (housing, cover), second bearing, second axle sleeve, second end ring and the second axle sleeve back-up ring, second bearing holder (housing, cover) is placed in the described second bearing pedestal chamber, the outer wall of this second bearing holder (housing, cover) constitutes second male cone (strobilus masculinus), second male cone (strobilus masculinus) and the described second bearing race chamber cone match, second bearing is placed in second bearing holder (housing, cover), this second bearing constitutes one second cone bearing chamber, second axle sleeve is inserted in the described second cone bearing chamber, the second axle sleeve back-up ring matches with second axle sleeve, second end ring lid is put outside second bearing holder (housing, cover) and second bearing, and this second end ring and described rotor endcap are fixed, wherein, described second axle sleeve cooperates with the described second back-up ring end face that is located on the central shaft.
In of the present invention and then specific embodiment, the inwall of one end of described second bearing holder (housing, cover) constitutes one second bearing limited step, described second bearing contacts with the second bearing limited step and is spacing by the second bearing limited step, is provided with second ceramic wearing coat at the inwall of second bearing holder (housing, cover).
Of the present invention again more and in specific embodiment, described second axle sleeve constitutes the second axle sleeve male cone (strobilus masculinus), the chamber wall cone match in this second axle sleeve male cone (strobilus masculinus) and the described second cone bearing chamber, and on the outer wall of an end of described axle sleeve back-up ring, constitute one second at second axle sleeve and connect bead, and constitute a cavity on the inwall of described second end ring, described second connects bead matches with cavity.
In again of the present invention and then specific embodiment, the end face of described axle sleeve back-up ring and described central shaft is fixed.
Technical scheme provided by the present invention is owing to the stator disc of stator is direct and central shaft are fixed, and be arranged on the central shaft by the clutch shaft bearing seat ring of setting up in rotor disc central authorities rotationally by means of clutch shaft bearing seat ring transition mechanism rotor, and rotationally be arranged at central shaft on by the second bearing race transition mechanism second bearing race of rotor endcap, the concentricity ideal of rotor, thereby it is fixed both can to have ensured, the consistency of the air gap between the rotor, can improve the stationarity of rotor motion again and guarantee and decide, the load of rotor on central shaft is even, avoid the central shaft distortion, also can reduce difficulty of processing central shaft.
Description of drawings
Fig. 1 is a specific embodiment structure chart of the present invention.
Fig. 2 is the cutaway view of Fig. 1.
Fig. 3 is the schematic diagram of the stator-rotor mechanism of the direct-drive aerogenerator group in the prior art.
Embodiment
For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present invention and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the present invention program, any according to the present invention's design done only for pro forma but not substantial equivalent transformation all should be considered as technical scheme category of the present invention.
Ask for an interview Fig. 1 and Fig. 2, provided the preferred for example central shaft 1 that obtains through forging of Q345D of Fine Steel Casting iron that adopts, this central shaft 1 also can be described as fixed axis or bolster, and the diameter of the length direction of this central shaft 1 (external diameter) can be identical, also can be inequality, but the preferred latter, promptly an end of central shaft 1 is thicker than the other end, is example with illustrated location status for example, the diameter of right-hand member is greater than the diameter of left end, because right-hand member is the end that connects of rotor 3 and central shaft 1.By shown in Figure 1, on the axis body of the right side of central shaft 1, left end, be respectively equipped with first, second back-up ring 12,13, stator 2 directly is fixed on the central shaft 1 by its stator disc 21, in the present embodiment, by submerged-arc welding with the stator solid welding on central shaft 1.Thisly stator 2 directly is welded in version and prior art structure for example shown in Figure 3 on the central shaft 1 compares and to save stator mounting flange circle 11 (Fig. 3 shows), thereby the difficulty of machining center axle 1 is minimized, and can fully ensure and the reliability of stator 2 and the connection of central shaft 1 cylindrical of stator 2 and end face are guaranteed in perfect condition with respect to the concentricity of central shaft 1.Be embedded stator coil 221 in the stator slot winding 22 that on stator 2 outer rims, is constituted by Fig. 2 signal.
Set firmly magnet steel 331 on the roof of the bore of stator 33 of rotor 3, aforesaid stator 2 is arranged in bore of stator 33, cooperates with rotor 3 air gaps.The central authorities of the rotor disc 31 of rotor 3 constitute one, and what have the wheel hub effect is the clutch shaft bearing seat ring 312 of wheel hub effect, the clutch shaft bearing seat ring chamber 3121 of this clutch shaft bearing seat ring 312 is a conical cavity, and be processed with first, second step 3122,3123 at the accent position in clutch shaft bearing seat ring chamber 3121, the effect of this first, second step 3122,3123 is to be used to meet the following clutch shaft bearing seat ring transition mechanism 4 that is about to detailed description, that is to say that clutch shaft bearing seat ring 312 is arranged on the central shaft 1 rotationally by clutch shaft bearing seat ring transition mechanism 4.
Preferred but not the structure clutch shaft bearing seat ring transition mechanism 4 that is limited to is as follows: clutch shaft bearing cover 41 is placed in the clutch shaft bearing seat ring chamber 3121 of aforesaid clutch shaft bearing seat ring 312, and contact with first back-up ring 12 and form sealing, first back-up ring 12 is spacing by the back-up ring step 14 that is machined on the central shaft 1.The outer wall of clutch shaft bearing cover 41 constitutes first male cone (strobilus masculinus) 413, clutch shaft bearing seat ring chamber 3121 cone match of this first male cone (strobilus masculinus) 413 and aforesaid taper.By top explanation as can be known, clutch shaft bearing cover 41 with can play the tenon fourth of the twelve Earthly Branches cooperating of clutch shaft bearing seat ring chamber 3121 as fiting effect.Be combined with coating method or similar fashion at the inwall of clutch shaft bearing cover 41 and promptly be coated with first ceramic wearing coat 411, and be that the inwall (port position of left end) of illustrated left end constitutes clutch shaft bearing limited step 412 at an end of clutch shaft bearing cover 41.Clutch shaft bearing 42 is a self-aligning bearing, is placed in the aforesaid clutch shaft bearing cover 41, and the surface of the outer ring of this clutch shaft bearing 42 contacts with aforesaid first ceramic wearing coat 411, and the inner ring of clutch shaft bearing 42 constitutes one first cone bearing chamber 421.After in clutch shaft bearing 42 is placed in clutch shaft bearing cover 41, the right-hand member of this clutch shaft bearing 42 is just spacing by aforesaid clutch shaft bearing limited step 412, and the clutch shaft bearing of can not scurrying out overlaps 41.One first axle sleeve 43 plays the effect of tensioner cover, and the outer wall of this first axle sleeve 43 constitutes the first axle sleeve male cone (strobilus masculinus), 431, the first axle sleeve male cone (strobilus masculinus)s 431 and the first cone bearing chamber, 421 mutual cone match, can play equally just as the well matched effect of closing in the tenon fourth of the twelve Earthly Branches.In addition, can also offer the tensioner groove at the length direction of first axle sleeve 43.The outer wall of the right-hand member of first axle sleeve 43 (location status illustrated in figures 1 and 2 is an example) expands and is provided with a mat and plays first of flange effect and connect bead 432.One first axle sleeve back-up ring 45 matches with aforesaid first axle sleeve 43, and on the inwall of the first axle sleeve back-up ring 45, be processed with groove 451 (Fig. 2 shows), this groove 451 obviously is used for compensating aforesaid first and connects bead 432, here the notion of the compensation of being said be meant first connect bead 432 charge in or claim to be embedded in the groove 451.Clutch shaft bearing back-up ring 44 is processed with the 3rd, the 4th step 441,442 in the side towards clutch shaft bearing seat ring 312, wherein, the 3rd step 443 and aforesaid first step 3122 are corresponding and match, and the 4th step 443 and aforesaid second step 3123 are corresponding and match.Spaced apart first fixing screw hole 443 that is provided with on the clutch shaft bearing back-up ring 44, fixing with one group of first hold-down screw 4431 with clutch shaft bearing seat ring 312, implement to stop by 44 pairs of clutch shaft bearings 42 of clutch shaft bearing back-up ring and bearing holder (housing, cover) 41.The right side of aforesaid clutch shaft bearing back-up ring 45 is spacing by the center axle bed that is used for central shaft 1 is installed on the central shaft bearing (not shown).
Because rotor 3 rotatably is arranged on the central shaft 1 by clutch shaft bearing seat ring transition mechanism 4, therefore with respect to prior art for example by structure shown in Figure 3, can save forward and backward bearing 3112,3113 of rotor axle sleeve 311, the rotor axle sleeve illustrated among Fig. 3 and rotor mounting flange circle 3114, thereby can avoid the unreasonable shortcoming that is caused that connects of rotor 3 that the applicant said and central shaft 1 in the background technology hurdle.
Continue to see Fig. 1 and Fig. 2, the rotor case 34 and the rotor disc 31 of rotor 3 jointly constitute fan blade mount pad 35, though illustrated among Fig. 1 not to be restricted three fan blade mount pads 35 of equidistant separation each other, because can be according to needing increase and decrease according to the size of the specification of stator and rotor 2,3.
Still ask for an interview Fig. 1 and Fig. 2, the applicant shows the stator 2 that is used for being positioned at bore of stator 33 in the drawings and implements the rotor endcap 32 that lid protects (cover and protect), and the flange 341 on these rotor endcap 32 usefulness screws and the rotor case 34 is fixing.Because rotor endcap 32 is that therefore the central part in rotor endcap 32 constitutes one second bearing race 321, and the second bearing race chamber 3211 of this second bearing race 321 is a conical cavity with the motion campaign of rotor 3.Rotor endcap 32 is arranged on the central shaft 1 by the following second bearing race transition mechanism 5 that will describe rotatably by its second bearing race 321.
Preferred but not the structure second bearing race transition mechanism 5 that is limited to is as follows: one second bearing holder (housing, cover) 51 is placed in the second bearing race chamber 3211, the outer wall of this second axle sleeve 51 constitutes second male cone (strobilus masculinus) 513, the chamber wall cone match of the conical cavity in second male cone (strobilus masculinus) 513 and the second bearing race chamber 3211, and can play the tenon fourth of the twelve Earthly Branches in conjunction with as effect.Be combined with second ceramic wearing coat 511 at the inwall of second axle sleeve 51 in the mode that applies or with other similar fashion, and on the inwall of the right-hand member of second axle sleeve 51, constitute one and be used for the second bearing limited step 512 spacing second bearing 52.Second bearing, the 52 same self-aligning bearings that adopt are placed in second bearing holder (housing, cover) 51, and the surface of the outer ring of second bearing 52 contacts with second ceramic wearing coat 511, and the inner ring of second bearing 52 constitutes the second cone bearing chamber 521.One second axle sleeve 53 plays the effect of tensioner cover, be inserted in the second cone bearing chamber 521, the outer wall of this second axle sleeve 53 constitutes the second axle sleeve male cone (strobilus masculinus), 531, the second axle sleeve male cone (strobilus masculinus)s 531 and the second cone bearing chamber, 521 cone match, uses and plays the effect that the tenon fourth of the twelve Earthly Branches combines.Constitute one second at the outer wall of the left end of second axle sleeve 53 and connect bead 532, in addition, can also offer at least one tensioner groove at the length direction of second axle sleeve 53.The second axle sleeve back-up ring 55 matches with aforesaid second axle sleeve 53, specifically be on the inwall of the second axle sleeve back-up ring 55, constitute with the same meaning of aforementioned recess 451 and unshowned in the drawings cavity, connect bead 532 with aforesaid second and charge in cavity, the second axle sleeve back-up ring 55 is fixed by the end face of screw and central shaft 1.One second end ring 54 is fixing with rotor endcap 32, specifically be on second end ring 54, to offer second fixing screw hole 541 at interval, with one group of second hold-down screw 5411 that second end ring 54 is fixing with rotor endcap 32, spacing by 54 pairs second bearings 52 of second end ring.Aforesaid second axle sleeve 53 contacts with described second back-up ring, 13 end faces.
When rotor 3 and rotor endcap 32 motions, because rotor 3 is arranged on the central shaft 1 by clutch shaft bearing seat ring transition mechanism 4, be arranged on the central shaft 1 by structure and the clutch shaft bearing seat ring transition mechanism 4 essentially identical second bearing race transition mechanisms 5 owing to rotor endcap 32 again, thereby can ensure the consistency of the cylindrical of rotor 3 reliably with respect to the position of central shaft 1, good concentricity, the motion of rotor 3 is steady, and the load of rotor 3 is distributed on the central shaft 1 equably by clutch shaft bearing seat ring transition mechanism 4, and central shaft 1 metaboly can not occur; Again, because stator 2 is directly to be welded on the central shaft 1, therefore the cylindrical of stator 2 is ensured with respect to the consistency of the position of central shaft 1, good concentricity, the load of stator 2 is evenly distributed on central shaft 1, both can prevent central shaft 1 deformation, can guarantee the air gap unanimity between the stator and rotor 2,3 again.
Claims (10)
1. the stator-rotor mechanism of a direct-drive aerogenerator group, comprise central shaft (1), be located on the central shaft (1) and stator (2) that constitute stator disc (21) and be located at cooperate with stator (2) air gap and rotor (3) that have rotor disc (31) and rotor endcap (32) on the central shaft (1), it is characterized in that described stator disc (21) directly is welded in described central shaft (1), the central authorities of described rotor disc (31) constitute a clutch shaft bearing seat ring (312), and this clutch shaft bearing seat ring (312) is arranged on the central shaft (1) rotationally by clutch shaft bearing seat ring transition mechanism (4); Described rotor endcap (32) is fixing with described rotor (3), central authorities in rotor endcap (32) constitute one second bearing race (321), and this second bearing race (321) is arranged on the central shaft (1) rotationally by the second bearing race transition mechanism (5).
2. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 1, it is characterized in that being equipped with on the described central shaft (1) first, second back-up ring (12,13), described clutch shaft bearing seat ring transition mechanism (5) matches with first back-up ring (12), the described second bearing race transition mechanism (4) matches with second back-up ring (13), the clutch shaft bearing seat ring chamber (3121) of described clutch shaft bearing seat ring (312) is a conical cavity, and the second bearing race chamber (3211) of second bearing race (321) of described rotor endcap (32) is a conical cavity.
3. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 2, it is characterized in that described clutch shaft bearing seat ring transition mechanism (4) comprises clutch shaft bearing cover (41), clutch shaft bearing (42), first axle sleeve (43), the clutch shaft bearing back-up ring (44) and the first axle sleeve back-up ring (45), clutch shaft bearing cover (41) is placed in the described clutch shaft bearing seat ring chamber (3121), the outer wall of this clutch shaft bearing cover (41) constitutes first male cone (strobilus masculinus) (413), first male cone (strobilus masculinus) (413) and described clutch shaft bearing seat ring chamber (3121) cone match, clutch shaft bearing (42) is placed in the clutch shaft bearing cover (41), this clutch shaft bearing (42) constitutes one first cone bearing chamber (421), first axle sleeve (43) is placed in the described first cone bearing chamber (421), the first axle sleeve back-up ring (45) matches with first axle sleeve (43), clutch shaft bearing back-up ring (44) lid is put outside clutch shaft bearing cover (41) and clutch shaft bearing (42), and it is fixing with described clutch shaft bearing seat ring (312), wherein, described first axle sleeve (43) cooperates with described first back-up ring (12) end face.
4. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 3, the inwall that it is characterized in that an end of described clutch shaft bearing cover (41) constitutes a clutch shaft bearing limited step (412), described clutch shaft bearing (42) contacts with clutch shaft bearing limited step (412) and is spacing by clutch shaft bearing limited step (412), is provided with first ceramic wearing coat (411) at the inwall of clutch shaft bearing cover (41).
5. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 3, described first axle sleeve (43) constitutes the first axle sleeve male cone (strobilus masculinus) (431), the chamber wall cone match in this first axle sleeve male cone (strobilus masculinus) (431) and the described first cone bearing chamber (421), and constitute one first at first axle sleeve (43) on the outer wall of an end of described axle sleeve back-up ring (45) and connect bead (432), and constitute a groove (451) on the inwall of the described first axle sleeve back-up ring (45), described first connects bead (432) matches with groove (451).
6. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 3, the accent position that it is characterized in that described clutch shaft bearing seat ring chamber (3121) constitutes first, second step (3122,3123), and described clutch shaft bearing back-up ring (44) constitutes the 3rd, the 4th step (441,442) towards a side of described clutch shaft bearing seat ring (312), wherein, the 3rd step (441) is corresponding with described first step (3122) and match, and the 4th step (442) is corresponding with described second step (3123) and match.
7. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 2, it is characterized in that the described second bearing race transition mechanism (5) comprises second bearing holder (housing, cover) (51), second bearing (52), second axle sleeve (53), second end ring (54) and the second axle sleeve back-up ring (45), second bearing holder (housing, cover) (51) is placed in the described second bearing pedestal chamber (3211), the outer wall of this second bearing holder (housing, cover) (51) constitutes second male cone (strobilus masculinus) (513), second male cone (strobilus masculinus) (513) and described second bearing race chamber (3211) cone match, second bearing (52) is placed in second bearing holder (housing, cover) (51), this second bearing (52) constitutes one second cone bearing chamber (521), second axle sleeve (53) is inserted in the described second cone bearing chamber (521), the second axle sleeve back-up ring (55) matches with second axle sleeve (53), second end ring (54) lid is put outside second bearing holder (housing, cover) (51) and second bearing (52), and this second end ring (54) is fixing with described rotor endcap (32), wherein, described second axle sleeve (53) cooperates with described second back-up ring (13) end face that is located on the central shaft (1).
8. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 7, the inwall that it is characterized in that an end of described second bearing holder (housing, cover) (51) constitutes one second bearing limited step (512), described second bearing (52) contacts with the second bearing limited step (512) and is spacing by the second bearing limited step (512), is provided with second ceramic wearing coat (511) at the inwall of second bearing holder (housing, cover) (51).
9. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 7, it is characterized in that described second axle sleeve (53) constitutes the second axle sleeve male cone (strobilus masculinus) (531), the chamber wall cone match in this second axle sleeve male cone (strobilus masculinus) (531) and the described second cone bearing chamber (521), and on the outer wall of an end of described axle sleeve back-up ring (55), constitute one second at second axle sleeve (53) and connect bead (532), and constitute a cavity on the inwall of described second end ring (55), described second connects bead (532) matches with cavity.
10. the stator-rotor mechanism of direct-drive aerogenerator group according to claim 7 is characterized in that the end face of described axle sleeve back-up ring (55) and described central shaft (1) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820882A CN101626175B (en) | 2009-07-22 | 2009-07-22 | Stator-rotor mechanism of direct drive type wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101820882A CN101626175B (en) | 2009-07-22 | 2009-07-22 | Stator-rotor mechanism of direct drive type wind generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101626175A CN101626175A (en) | 2010-01-13 |
| CN101626175B true CN101626175B (en) | 2011-06-29 |
Family
ID=41521893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101820882A Active CN101626175B (en) | 2009-07-22 | 2009-07-22 | Stator-rotor mechanism of direct drive type wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101626175B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738991A (en) * | 2011-12-20 | 2012-10-17 | 深圳市安托山特种机械有限公司 | Permanent magnet generator of permanent magnet intermediate-frequency combined magnetic circuit |
| CN115395708B (en) * | 2021-05-25 | 2023-12-08 | 北京金风科创风电设备有限公司 | Power generation device, maintenance method thereof and wind generating set |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014584A1 (en) * | 2006-08-04 | 2008-02-07 | Clean Current Power Systems Incorporated | Axial air gap machine having stator and rotor discs formed of multiple detachable segments |
| CN201212456Y (en) * | 2008-05-28 | 2009-03-25 | 富田电机股份有限公司 | Outward turning directly-driving wind power generator structure |
| CN101429927A (en) * | 2007-11-07 | 2009-05-13 | 王光顺 | Permanent magnet direct-driving aerogenerator |
| CN101447703A (en) * | 2007-11-26 | 2009-06-03 | 西门子公司 | Direct drive generator and wind turbine |
| CN201515272U (en) * | 2009-07-22 | 2010-06-23 | 常熟市强盛电力设备有限责任公司 | Stator-rotor mechanism of direct drive wind generator set |
-
2009
- 2009-07-22 CN CN2009101820882A patent/CN101626175B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008014584A1 (en) * | 2006-08-04 | 2008-02-07 | Clean Current Power Systems Incorporated | Axial air gap machine having stator and rotor discs formed of multiple detachable segments |
| CN101429927A (en) * | 2007-11-07 | 2009-05-13 | 王光顺 | Permanent magnet direct-driving aerogenerator |
| CN101447703A (en) * | 2007-11-26 | 2009-06-03 | 西门子公司 | Direct drive generator and wind turbine |
| CN201212456Y (en) * | 2008-05-28 | 2009-03-25 | 富田电机股份有限公司 | Outward turning directly-driving wind power generator structure |
| CN201515272U (en) * | 2009-07-22 | 2010-06-23 | 常熟市强盛电力设备有限责任公司 | Stator-rotor mechanism of direct drive wind generator set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101626175A (en) | 2010-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107240981A (en) | A kind of removable magnetic levitation energy storage flywheel rotor | |
| CN105464899B (en) | Wind driven generator and wind driven generator set | |
| CN106992626B (en) | A kind of double base energy storage device of magnetic suspension flywheel | |
| CN102536666B (en) | Large-size direct-drive double wind-driven generator system and installation method thereof | |
| CN102364094A (en) | Bidirectional wind barrel type magnetic suspension wind power generation device | |
| CN101626175B (en) | Stator-rotor mechanism of direct drive type wind generating set | |
| CN201515272U (en) | Stator-rotor mechanism of direct drive wind generator set | |
| CN102619961B (en) | Double-input high-speed gear transmission box used for steam turbine | |
| CN102094898A (en) | Three-row equal-diameter cylindrical roller turntable bearing | |
| CN108105256A (en) | The split type pitch variable bearings of T-shaped ditch right angle contact | |
| CN110601422B (en) | Vertical shaft double-rotor hydroelectric generator | |
| CN202326021U (en) | Two-way air duct type magnetic suspension wind power generation device | |
| WO2024119658A1 (en) | Megawatt-class wind power generating set | |
| CN202817975U (en) | Disk type generator | |
| CN101737261A (en) | Wind driven generator with multiple wind wheels | |
| CN201202593Y (en) | Magnetic suspension paddle distance self-adjusting vertical shaft wind power generator | |
| CN107882683A (en) | A kind of interior winding rotates against vertical axis wind-mill generator | |
| CN100592604C (en) | Small-sized Wind power generator and its assembly method | |
| CN100443779C (en) | Big load planetary gear bearing support device | |
| CN110486237B (en) | Megawatt-level low-speed direct-drive wind driven generator shafting device | |
| CN203243181U (en) | Dual-stator permanent magnetism direct-driven wind turbine generator | |
| CN202251899U (en) | Supporting structure of bearing in speed reducer | |
| CN210343620U (en) | Shafting structure of direct-drive wind driven generator | |
| CN200940676Y (en) | Planet gear bearing support device | |
| CN201902442U (en) | Turnplate bearing of three-line equant cylindrical roller type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Yongxiang Inventor after: The inventor has waived the right to be mentioned Inventor after: Deng Xueming Inventor before: Meng Weigang Inventor before: Deng Xueming |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: MENG WEIGANG DENG XUEMING TO: WU YONGXIANG REQUEST NOT RELEASE THE NAME DENG XUEMING |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |