CN100381698C

CN100381698C - Small power vertical axle wind-mill generator

Info

Publication number: CN100381698C
Application number: CNB2005100460010A
Authority: CN
Inventors: 曾碚凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-11
Filing date: 2005-03-11
Publication date: 2008-04-16
Anticipated expiration: 2025-03-11
Also published as: CN1831328A

Abstract

The present invention discloses a vertical shaft wind driven generator with small power. An upper sail vane supporting disc and a lower sail vane supporting disc are fixedly connected with the upper end and the lower end of a central column; a plurality of sail vanes are arranged between the upper sail vane supporting disc and the lower sail vane supporting disc by a sail vane coupling; the lower end of each sail vane is also connected with a driving mechanism for the upwind angle of a sail vane by a sail vane coupling; the upper end of the central column is movably connected with an anchoring device, the lower end is arranged on a base by a main bearing; the main bearing is connected with a generator by a power transmitting mechanism provided with a sensor, and the generator is provided with a speed reducer; a vane is arranged above the anchoring device; the sensor is electrically connected with the driving mechanism for the upwind angle of a sail vane by a master controller, and the whole is anchored by an anchoring rope via the anchoring device; the main bearing is in a composite thrust bearing structure. The vertical shaft wind driven generator enhances system stability and reduces the space occupied by a blower simultaneously. The driving mechanism for the upwind angle of a sail vane and the composite thrust bearing comprising a magnetic suspension thrust bearing lower friction loss. The vertical shaft wind driven generator has strong using rate and strong practicability and effectively extends generating time.

Description

Small power vertical axle wind-mill generator

Technical field

The present invention relates to wind generating technology, specifically a kind of can adjust automatically the sail leaf facing the wind the angle, have the small power vertical axle wind-mill generator of compound thrust bearing.

Background technique

Successively by each state approval, the demand to clean energy resource will be promptly expanded in the whole world according to the Kyoto Protocol, and wind-power electricity generation is one of clean energy resource of human the easiest acquisition, therefore is faced with great opportunity to develop.Family is the fundamental unit of social energy demand, so cleaning of home energy source is significant.Disclosed a lot of home-use wind-driven generators in known technology, the overwhelming majority is the horizontal axis low power wind driven generator.Some vertical axis aerogenerators are also arranged.Under low power situation (below the 1000W), have his own strong points between both are relative, there is no absolute predominance can say.Along with the process of social modernization, Family Day electric consumer increase, the establishment in household industry workshop, the power consumption of family and institution also increases constantly.For satisfying the home-use electric weight that increases day by day at present, the power of household wind-driven generator at least should be greater than 10kW, the cost of horizontal axis wind-driven generator can rise comparatively fast under this condition, because the supporting post of horizontal axis wind-driven generator is a cantilever beam structure, the top that whole loads act on, require supporting post and basis that very high intensity is arranged, these all impel cost to increase.Have, the horizontal axis blade area is little again, and impeller radius is big, and the noise that blade tip streaks air is bigger, and the sun impinges upon the shade of casting on the blower fan, because the rotation shade of blade is glittering fast.Can make the room of inhabitation flickering, noise of Chan Shenging and light pollution all can seriously influence people's life therefrom.

Also once disclosed the small power vertical axle wind-mill generator of multiple family expenses in the prior art, but had some problems: with the fixing institutional adjustment sail leaf angle resistance maximum when making with the wind of facining the wind, resistance minimum in the time of against the wind.Because mechanism fixes, gentle breeze can start, and strong wind will transship, thereby will descend gate stop-start during strong wind.If when high wind can utilize, just can not start during gentle breeze.Effectively generating dutation is shorter.The mechanism of the adjustment sail leaf resistance that has is too simple, along resistance ratios is little against the wind, can not absorb wind energy efficiently.Swivel bearing all adopts mechanical bearing, and efficient is lower, also breaks down often.Mechanism is relatively more fragile simultaneously, is difficult to satisfy the needs in household industry workshop.

Summary of the invention

For solving as above problem, reducing blower fan takes up space, raise the efficiency, reduce maintenance cost, the present invention proposes a kind of vertically to arrange sail leaf and sail leaf only around the newel rotation, can be neatly adjust facing the wind angle and have the family expenses small power vertical axle wind-mill generator of compound thrust-bearing of sail leaves according to various wind-force.Owing in the small power vertical axle wind-mill generator proposed by the invention, use anchor cable and auxiliary anchor pole on the ground, in the stability of having strengthened system widely, reduced blower fan and taken up space with top anchor; Add the independent sail leaf flexibly angle driving mechanism that facings the wind, reduced frictional loss with the compound thrust-bearing that comprises magnetic thrust bearing, not only made to start the wind-force reduction, the rank of utilizable high wind also is improved, prolonged generating dutation effectively, its practicability is extremely strong.

For achieving the above object, technological scheme of the present invention is as follows: comprise the newel that the sail leaf is installed, have the wind vane of sensor in newel top configuration one; The two ends up and down of wherein said newel affixed go up sail leaf supporting disk and the leaf supporting disk that lowers the sail, by sail leaf shaft joint a plurality of sail leaves are installed and are lowered the sail between the leaf supporting disk in last; The lower end of each sail leaf also connects the sail leaf angle driving mechanism that facings the wind by sail leaf shaft joint, the newel upper end flexibly connects with anchor, the lower end is installed on the pedestal by main bearing, and main bearing is connected with the generator of being furnished with retarder by the power transmission mechanism that is provided with sensor; Establish wind vane in the anchor top; Sensor is electrically connected by main controller and the sail leaf angle driving mechanism that facings the wind, whole with anchor cable by the anchor grappling; Wherein said main bearing is compound thrust bearing; Can add auxiliary anchor pole on anchor cable;

Described compound thrust-bearing comprises magnetic thrust bearing and is installed in radial ball bearing on the sleeve pipe that wherein magnetic thrust bearing is installed between shaft joint or the upper and lower chassis of main thrust bearings, is the even number donut structure that is made of permanent-magnet material; On shaft joint or main thrust bearings chassis rotary middle spindle, be set with the sleeve pipe that is slidingly matched with shaft joint or main thrust bearings low bottom-disc central part, radial ball bearing be installed between shaft joint or main thrust bearings top bottom-disc central part and sleeve pipe;

Wherein: the described corresponding donut that is made of permanent-magnet material that is installed in relative position between the upper and lower chassis of thrust-bearing is to wait radius and wide structure; The polarity arrangement of described permanent-magnet material is: the polarity of permanent-magnet material is identical on same annulus, the polarity of two employed permanent-magnet materials of annulus on same thrust-bearing chassis is opposite, is that the same sex is relative in the polarity of the permanent-magnet material on shaft joint or the main thrust bearings between low bottom-disc, on the identical annulus of relative position place diameter; Described permanent-magnet material adopts neodymium iron boron;

The main bearing concrete structure that contains compound thrust-bearing is: the main thrust bearings low bottom-disc and the main thrust bearings top bottom-disc that comprise mutual fastening, central part at the main thrust bearings low bottom-disc is provided with main thrust bearings chassis rotary middle spindle, establish axis hole B at the central part of main thrust bearings top bottom-disc, the axis hole B socket of main thrust bearings chassis rotary middle spindle and main thrust bearings top bottom-disc central part is installed together the upper and lower chassis of main thrust bearings rotary type; On main thrust bearings low bottom-disc and main thrust bearings top bottom-disc, arrange the even number donut that constitutes by permanent-magnet material respectively at the relative position place; Be provided with a sleeve pipe that is slidingly matched outside the rotary middle spindle of main thrust bearings chassis, the upper/lower terminal of sleeve pipe is equipped with radial ball bearing respectively, and the outer ring of the bearing of radial ball bearing is fixed among the axis hole B of main thrust bearings top bottom-disc central part;

Described main thrust bearings top bottom-disc links to each other with the newel bottom, and described main thrust bearings low bottom-disc is installed on the pedestal;

Sail leaf shaft joint is compound thrust-bearing or roller thrust bearing structure; The compound thrust bearing of described sail leaf shaft joint is that compound thrust bearing is identical with main bearing; The roller thrust bearing structure of described sail leaf shaft joint is made up of interior axle and two thrust-bearings, the two ends of axle in two thrust-bearings are configured in, and same model, direction are provided with on the contrary; Establish splined hole in the interior axle center hole, on the axle, in the thrust-bearing outside, fixedly the interior of thrust-bearing encircled on interior in jump ring was installed in.

Described anchor is by overlapping in the anchor, the anchor overcoat, upper bearing (metal), lower bearing and anchor yoke are formed, in anchor, establish upper bearing (metal) and lower bearing between cover and the anchor overcoat, cover links to each other with the newel top by adpting flange in the anchor, anchor yoke by anchor cable fixedly anchor be coated at ground; Or anchor is made up of central shaft, bearing unit, anchor disc, wherein establishes a central shaft at the anchor disc center, and there is a seam lower end of central shaft, central shaft is passed on the low bottom-disc rotary middle spindle of the main bearing that newel is packed in by seam; The top of central shaft is movably arranged on newel by bearing unit, and anchor disc is by anchor yoke, cable wire anchoring; This bearing unit is made up of overcoat, interior cover, radial ball bearing, and its overcoat is a flange arrangement, is packed in by bolt on the upper flanges of newel, and interior cover and central shaft are slidingly matched, and between overcoat and the interior cover radial ball bearing is arranged;

Described power transmission mechanism is the generator shaft joint, by splined shaft and spline housing suit, splined shaft is placed through the main thrust bearings chassis rotary middle spindle of main bearing, links to each other with newel by flange plate A, splined shaft passes through the spline B engagement of set spline boss of outer wall and inwall, and the input of speed reducer generator set is linked on the wheel in the spline housing below by flange plate D; Or described power transmission mechanism is made up of gear ring and transmission gear, and gear ring is installed on the main thrust bearings top bottom-disc of main bearing, and in transmitting gear engagement, transmits gear and be connected with the speed reducer generator set.

Compared with prior art the present invention has more following beneficial effect:

1. owing to the effect of anchor cable and auxiliary anchor pole, the good stability that the present invention is in operation uses material few, so cost is lower.

2. be arranged vertically the sail leaf, floor space is little, and the maximum speed that the sail leaf rotates is far below horizontal axis wind-driven generator, so the light pollution that noise and shade cause is much smaller than horizontal axis wind-driven generator.

3. the present invention has adopted the compound thrust-bearing technology of magnetic suspension that the energy loss of rotating part is reduced significantly on the main bearing of load maximum, has improved efficient and has reduced fault, thereby made things convenient for maintenance work.

4. the wind scale wide ranges that can utilize, effectively generating dutation is longer, good in economic efficiency.

Description of drawings

Fig. 1-1 is an overall structure schematic representation of the present invention.

Fig. 1-2 is among Fig. 1-1, main bearing and generator shaft joint scheme of installation on concrete pedestal.

Fig. 1-3 is among Fig. 1-1, and facing the wind angle starter and sail leaf shaft joint of sail leaf is installed in the scheme of installation of the leaf supporting disk below that lowers the sail (be used for driving sail leaf).

Fig. 1-4 is among Fig. 1-1, the structural representation that the sail leaf is connected with last sail leaf supporting disk by sail leaf shaft joint.

Fig. 1-5 is among Fig. 1-1, the cross-sectional configuration schematic representation of sail leaf shaft joint and last sail leaf supporting disk connection part.

Fig. 2-1 is the plan view of main bearing among Fig. 1-1.

Fig. 2-2 is the sectional view of Fig. 2-1.

Fig. 2-3 is installed in the even number donut structural representation that constitutes in the thrust-bearing low bottom-disc for magnetic thrust bearing among Fig. 2-1.

Fig. 2-4 is installed in the even number donut structural representation that constitutes in the thrust-bearing top bottom-disc for magnetic thrust bearing among Fig. 2-1.

Fig. 2-5 is Fig. 2-1 main bearing and generator shaft joint connection diagram.

Fig. 2-6 is the axial sectional view of Fig. 2-5 (spend strong axle and spend being connected of strong axle sleeve in the expression generator shaft joint).

Fig. 3-1 is the structural representation (embodiment 1) of anchor among Fig. 1-1.

Fig. 3-2 is the axial sectional view of Fig. 3-1 (illustrated the installation method of overcoat and two ends radial bearing in the anchor and the collocation method of anchor yoke).

Fig. 4-1 is the overall structure figure of the embodiment of the invention 2.

Fig. 4-2 is anchor and newel and the main bearing mounting structure schematic representation in the embodiment of the invention 2.

Fig. 4-3 is the sectional view of Fig. 4-2.

Fig. 4-4 is the top section structural drawing of Fig. 4-1.

Fig. 4-5 is the base section structural drawing of Fig. 4-1.

Fig. 5 is a main controller circuit structure block diagram.

Label declaration: 1 is newel, and 2 is the sail leaf, and 3 is last sail leaf supporting disk; 4 are the leaf supporting disk that lowers the sail; 5 is sail leaf shaft joint, and 50 is interior axle, and 51 is thrust-bearing, and 53 is splined hole, and 54 is jump ring; 6 is anchor, and 60 is interior cover, and 61 is the anchor overcoat, and 62 is upper bearing (metal), and 63 is lower bearing; 7 is wind vane; 8 are the sail leaf angle driving mechanism that facings the wind; 9 is main bearing, and 901 is the main thrust bearings low bottom-disc, and 905 is the main thrust bearings top bottom-disc, 903 is permanent magnets, and 904 is main thrust bearings chassis rotary middle spindle, and 905 is outer concentric annular boss D, 906 is outer concentric annular boss C, 907 is interior concentric annular boss D, and 908 is interior concentric annular boss C, and 909 is sleeve pipe, 910 is radial bearing, 912 is axis hole B, and 913 is flange plate C, and 914 is mounting hole B; 10 is the generator shaft joint; 101 is splined shaft, and 120 is flange plate A, and 103 is the spline boss, and 104 is spline housing, and 105 is spline B, and 106 is flange plate D; 11 is the speed reducer generator set; 12 is pedestal; 13 is anchor cable; 14 are auxiliary anchor pole; 15 is anchor yoke; 17 is servocontroller; 18 is analog-digital converter; 19 is computer.20 is central shaft, and 201 is seam, and 21 is bearing unit, and 211 is overcoat, and 212 is interior cover, and 213 is radial ball bearing, and 22 is anchor disc, and 24 is gear ring, and 25 for transmitting gear.

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

Embodiment 1

Shown in Fig. 1-1,1-2,1-3,1-4, small power vertical axle wind-mill generator of the present invention is to constitute like this: the two ends up and down of newel 1 affixed go up the sail leaf supporting disk 3 and the leaf supporting disk 4 that lowers the sail, have 4 sail leaves 2 to be contained between two sail leaf supporting disks, each sail leaf 2 is contained in by two sail leaf shaft joint 5 rotaries up and down and lowers the sail between the leaf supporting disk 3,4.In the present embodiment, the lower end of each sail leaf 2 connects sail leaf angle driving mechanism 8 that facings the wind by sail leaf shaft joint 5; Newel 1 has two rotation strong points, and one is anchor 6 in the upper end, and another is main bearing 9 in the lower end.The parts that they are assemblied on the newel 1 newel 1 and all can be around the rotation of central principal axis line.Each sail leaf facings the wind, and to drive sail leaves 2 be a rotation with self axis in the central shaft revolution for angle driving mechanism 8, constantly adjust the windage of each sail leaf, make the suitable resistance against the wind that is keeping suitable in 4 sail leaves poor, absorb wind energy most possibly in the hope of making blower fan.First sensor (present embodiment adopts digital anemoscope) is installed on the wind vane 7, second sensor (present embodiment employing code-disc) is installed on the code-disc on the generator shaft joint, two sensors are used at a high speed, in real time with wind-force, the orientation of wind direction and each sail leaf converts corresponding digital quantity to and reaches main controller by Field bus, the code-disc of main controller from the generator shaft joint learns the relative position of sail leaf 2 wind, obtain wind-force and wind direction data from digital anemoscope again, compare along hindering against the wind according to the pairing the best of present wind-force again, calculate the instant angle that facings the wind of each sail leaf, will instruct by Field bus and send out each sail leaf above-mentioned instruction of angle driving mechanism 8 execution of facining the wind.Whole vertical axis aerogenerator absorbs wind energy as much as possible and converts moment of torsion to, (structure is a generator shaft joint 10 to power transmission mechanism by main bearing 9 belows, by splined shaft 101 and spline housing 104 suits, splined shaft 101 is placed through the main thrust bearings chassis rotary middle spindle 904 of main bearing 9, link to each other with newel 1 by flange plate A 102, splined shaft 101 passes through spline B 105 engagements of set spline boss 103 of outer wall and 104 inwalls, the input of speed reducer generator set is linked on the wheel in spline housing 104 belows by flange plate D 106) generator shaft joint 10 driving speed reducer and generator set, produce supply of electrical energy and use to the user.

As shown in Figure 5, main controller is made up of analog-digital converter 18, computer 19, servocontroller 17, wherein analog-digital converter 18 receptions reach the bearing signal from the code-disc upper sensor from wind-force, the wind direction signals of the sensor of wind vane 7, carry out data after A and deliver to computer 19, computer 19 sends control signal and the sail leaf servocontroller 17 (computer described here and control program, analog-digital converter, servocontroller are prior art) that angle driving mechanism 8 is electrically connected that facings the wind to by program.

For the stability that guarantees that the present invention is in operation, use anchor cable on the ground with top of the present invention anchoring, the invention solves following two problems here, anchor cable is fixed, and newel 1 rotates, and requires to be independent of each other.The structure of the anchor 6 that the present invention is used is shown in Fig. 3-1,3-2, anchor 6 is by overlapping 60 in the anchor, anchor overcoat 61, upper bearing (metal) 62, lower bearing 63 and several anchor yokes 15 are formed, in anchor, establish upper bearing (metal) 62 and lower bearing 63 between cover 60 and the anchor overcoat 61, on the cover 60 adpting flange 64 is arranged in the anchor, it is fixed in newel 1 top by bolt.Anchor cable 13 is fixing with anchor overcoat 61 by anchor yoke 15.Because the support and the isolation of metal (upper 62,63 are arranged, make its spinfunction that had both guaranteed newel 1 like this, do not influence the fixation of anchor cable 13 again.As Figure 1-1, adopted auxiliary anchor pole 14 to reduce the length of anchor cable 13 and the axial pressure of giving anchor 6 among the present invention, 62,63 thrust loads of being born of upper and lower bearing radially that make anchor 6 uses are within safety range, prolong maintenance period effectively, improved the life-span of equipment.

Shown in Fig. 1-3,1-4,1-5, each sail leaf shaft joint 5 is made up of 50 and two thrust-bearings 51 of interior axle, spools 50 two ends in two thrust-bearings 51 are configured in, and same model, direction are opposite; The structure that is in each sail leaf shaft joint 5 on the leaf supporting disk that lowers the sail is identical, the installation method difference: the sail leaf shaft joint 5 that is positioned at sail leaf supporting disk 3 is adorned from lower to upper, the flange that connects sail leaf 2 below, the sail leaf shaft joint 5 that is positioned at the leaf supporting disk 4 that lowers the sail is adorned from top to bottom, the flange that connects sail leaf 2 up, the splined hole 53 in interior axle 50 center holes is provided with for cooperating the sail leaf angle driving mechanism that facings the wind.In jump ring 54 is installed on the axle 50, in thrust-bearing 51 outsides, in the interior ring of thrust-bearing 51 is fixed on the axle 50.Sail leaf shaft joint 5 is given upper and lower sail

leaf supporting disk

3,4 with the weight transfer of sail leaf 2, what mainly bear in the process of rotation is axial load, therefore the present invention has adopted thrust-bearing 51 in sail leaf shaft joint 5, when superior performance requires, can adopt the compound thrust-bearing (referring to main bearing 9 structures) that comprises magnetic thrust bearing, also can adopt conventional roller thrust bearing when requiring cost low.What adopt in the present embodiment is conventional roller thrust bearing.

As Figure 1-1, when small power vertical axle wind-mill generator of the present invention moved, the weight of whole blower fan was all by main bearing 9 carryings.For reducing the frictional loss that conventional thrust-bearing causes, the present invention utilizes Nd-Fe-Bo permanent magnet material, has designed a kind of compound thrust-bearing near zero friction especially and has solved this problem.

Consider the vertical axis aerogenerator rotary component around the vertical shaft rotation, what bearing was born is the weight that whole wind machine comprises sail leaf and supporting mechanism, and the main load of bearing is an axial load, and radial load is very little.The present invention utilizes the principle that the magnetic pole same sex is repelled each other, there is a natural attraction between the sexes, has designed the main bearing 9 of the compound thrust bearing that comprises magnetic thrust bearing.Main bearing 9 comprises magnetic thrust bearing and is installed in radial ball bearing on the sleeve pipe, referring to Fig. 2-1,2-2, specifically: each arranges that (present embodiment adopts 2 donuts to the even number donut that is made of permanent-magnet material piece 903, is installed in respectively on the concentric annular boss on the upper and lower chassis of main thrust bearings on main thrust bearings low bottom-disc 901 and main thrust bearings top bottom-disc 902; Specifically can install as follows: concentric annular boss D 905 outside on main thrust bearings low bottom-disc 901, establishing, interior concentric annular boss D 907, two concentric annular boss diameter differences but etc. width; Concentric annular boss C 906 outside on main thrust bearings top bottom-disc 902, establishing, interior concentric annular boss C 908, two concentric annular boss diameter differences but etc. width; To be packed on described four concentric annular boss with the corresponding permanent magnets 903 usefulness bolts of concentric annular boss size again, form the annulus that corresponding in twos 4 permanent magnets that are provided with are formed), the concentric annular boss at relative position place, the upper and lower chassis of main thrust bearings is for waiting radius and wide.Wherein: the polarity of Nd-Fe-B permanent magnetic piece is to arrange like this: the polarity of the Nd-Fe-B permanent magnetic piece on same annulus is identical, the polarity of the Nd-Fe-B permanent magnetic piece of arranging at two annulus on same chassis is opposite, and the same sex of the Nd-Fe-B permanent magnetic piece on the annulus that diameter is identical between the upper and lower chassis of main thrust bearings is relative.Like this when the upper and lower chassis of main thrust bearings that the Nd-Fe-B permanent magnetic piece has been installed closes up relatively, because the effect of magnetic pole has just produced thrust.Because the remanent magnetism after neodymium iron boron magnetizes, therefore needn't be worried permanent magnets 903 much smaller than coercivity and can produce the demagnetization phenomenon under long-term contrary magnetic stripe spare.But this a pair of thrust is a unstable couple, it can not make system's stable rotation under load, in order to guarantee that thrust acts on the rotating center all the time, the present invention is used a radial ball bearing and stablizes the rotating center on the upper and lower chassis of main thrust bearings, has constituted compound thrust-bearing with magnetic thrust bearing.Yet this radial ball bearing has different usings method with common radial ball bearing, because described magnetic thrust bearing is a kind of elastic system, it can be subjected to displacement with the vertical axial load variations that the wind-force variation causes, small earthquake also can cause the axial displacement of described magnetic thrust bearing.But radial ball bearing is not allow axial displacement, for fear of in this case ball bearing radially being damaged, the present invention has adopted following technical measures: establish a main thrust bearings chassis rotary middle spindle 904 at the central part of main thrust bearings low bottom-disc 901, outside main thrust bearings chassis rotary middle spindle 904, be provided with a sleeve pipe that is slidingly matched 909, radial ball bearing 910 is equipped with in the upper/lower terminal outside of sleeve pipe 909 respectively, and the outer ring of the bearing of radial ball bearing 910 is fixed among the axis hole B 912 of main thrust bearings top bottom-disc 902 central parts.Like this, when the upper and lower chassis of main thrust bearings during, only be the axial displacement that produces between sleeve pipe 909 and the described main thrust bearings chassis rotary middle spindle 904 with the variation generation axial displacement of axial load, radial ball bearing 910 is not subjected to any axial force.

Wherein: the main bearing concrete structure that contains compound thrust-bearing is: the main thrust bearings low bottom-disc 901 and the main thrust bearings top bottom-disc 902 that comprise mutual fastening, central part at main thrust bearings low bottom-disc 901 is provided with main thrust bearings chassis rotary middle spindle 904, establish axis hole B 912 at the central part of main thrust bearings top bottom-disc 902, main thrust bearings low bottom-disc rotary middle spindle 904 passes through sleeve pipe 909 and radial bearing 910 sockets with the axis hole B 912 of main thrust bearings top bottom-disc 902 central parts, and the upper and lower chassis of main thrust bearings rotary type is installed together.Main thrust bearings top bottom-disc 902 tops link to each other with newel 1 by flange plate C 913; For firmly, add stiffening rib at the outer wall of the axis hole B 912 of main thrust bearings top bottom-disc 902 central parts; Main thrust bearings low bottom-disc 901 is installed together with pedestal 12 by mounting hole B 914.

Solving newel 1 output torque and be fixed on the ground speed reducer generator set 11 of pedestal contingent dynamic axial displacement problem when being connected because main bearing 9 is the thrust-bearing of an elastic structure, the present invention has used the generator shaft joint 10 with spline structure.Fig. 2-the 5th, the schematic representation of generator shaft joint 10 and main bearing 9 Placements.Fig. 2-the 6th, the axial sectional view of generator shaft joint.Generator shaft joint 10 is splined shaft 101 and spline housing 104 sleeve structures, and there is flange plate A 102 splined shaft 101 tops, are clipped between the flange plate B 913 and newel 1 lower flange on the main bearing 9, use bolton.Splined shaft 101 passes the main thrust bearings chassis rotary middle spindle 904 of main bearing 9, and pass through the spline B 105 engagement transmitting torques of its outer wall set spline boss 103 and spline housing 104 inwalls, spline housing 104 below flange plate D 106 are affixed to the input of speed reducer generator set on the wheel.Because spline structure allows generator shaft joint 10 that axial displacement takes place in transmitting torque, this has just solved the problem that may occur.

Embodiment 2

The another kind of implementation method of the central rotary mechanism of small power vertical axle wind-mill generator of the present invention shown in Fig. 4-1.Referring to Fig. 4-2, anchor 6 is made up of central shaft 20, bearing unit 21, anchor disc 22, wherein establish a central shaft 20 at anchor disc 22 centers, there is a seam 201 lower end of central shaft 20, central shaft 20 is passed on the low bottom-disc rotary middle spindle 904 of the main bearing 9 that newel 1 is packed in by seam 201; The top of central shaft 20 is movably arranged on newel 1 by bearing unit 21, and anchor disc 22 is by anchor yoke 15, cable wire 13 anchorings.Therefore central shaft 20 is connected with main bearing thrust-bearing low bottom-disc 901 in the wind-driven generator running and maintains static.Upper end with the newel 1 of sail leaf 2 rotation is disposing bearing unit 21, this bearing unit 21 is made up of overcoat 211, interior cover 212, radial ball bearing 213, its overcoat 211 is flanges,, can rotate together by concentricity post 1 on the upper flanges of newel 1 by bolton.The interior cover 212 and the central shaft 20 of this bearing unit are slidingly matched, and between overcoat 211 and the interior cover 212 radial ball bearing 213 are arranged.So the purpose of arranging has two reasons, and one, direct machining bearing mounting process inconvenience on very big newel 1 of length and central shaft 20, two, main bearing is that the compound thrust-bearing of magnetic suspension is an elastic system, and axial displacement is often arranged.Had above-mentioned configuration not only easy to process, and the axial displacement of newel 1 only take place in bearing unit between cover 212 and the central shaft 20.To the radial ball bearing in the bearing unit 21 213 without any influence.The affixed anchor disc 22 in top of fixing non-rotary central shaft 20 has disposed anchor yoke 15 in its peripheral hole, again through anchor cable 13 and auxiliary anchor pole 14, with the top grappling of central shaft 20 on the ground.

The moment of torsion of newel 1 is performed such to the transmission of speed reducer generator set 11: shown in Fig. 4-1,4-2,4-3,4-4,4-5, the transmission gear 25 that on main thrust bearings top bottom-disc 902, adds gear ring 24 and be engaged with, gear ring 24 is affixed with main thrust bearings low bottom-disc 902, is connected with the speed reducer generator set through transmitting gear 25 again.The moment of torsion of newel 1 has just passed to speed reducer generator set 11 like this.Speed reducer generator set 11 belongs to known technologies, and main bearing and the sail leaf principle that the angle regulates of facining the wind is identical with embodiment 1.No longer narration.

Described sail leaf shaft joint 5 can be the compound thrust bearing (specifically referring to the main bearing structure with compound thrust-bearing) with magnetic thrust bearing.

Claims

1. a small power vertical axle wind-mill generator comprises the newel that the sail leaf is installed, and has the wind vane of sensor in newel top configuration one; It is characterized in that: the two ends up and down of wherein said newel affixed go up sail leaf supporting disk and the leaf supporting disk that lowers the sail, by sail leaf shaft joint a plurality of sail leaves are installed and are lowered the sail between the leaf supporting disk in last; The lower end of each sail leaf also connects the sail leaf angle driving mechanism that facings the wind by sail leaf shaft joint, the newel upper end flexibly connects with anchor, the lower end is installed on the pedestal by main bearing, and main bearing is connected with the generator of being furnished with retarder by the power transmission mechanism that is provided with sensor; Establish wind vane in the anchor top; Sensor is electrically connected by main controller and the sail leaf angle driving mechanism that facings the wind, whole with anchor cable by the anchor grappling; Wherein said main bearing is compound thrust bearing.

2. by the described small power vertical axle wind-mill generator of claim 1, it is characterized in that: described compound thrust-bearing comprises magnetic thrust bearing and is installed in radial ball bearing on the sleeve pipe, wherein magnetic thrust bearing is installed between shaft joint or the upper and lower chassis of main thrust bearings, is the even number donut structure that is made of permanent-magnet material; On shaft joint or main thrust bearings chassis rotary middle spindle, be set with the sleeve pipe that is slidingly matched with shaft joint or main thrust bearings low bottom-disc central part, radial ball bearing be installed between shaft joint or main thrust bearings top bottom-disc central part and sleeve pipe.

3. by the described small power vertical axle wind-mill generator of claim 2, it is characterized in that: describedly be installed in that the corresponding donut that is made of permanent-magnet material of relative position is to wait radius and wide structure between the upper and lower chassis of thrust-bearing.

4. by the described small power vertical axle wind-mill generator of claim 2, it is characterized in that: the polarity arrangement of described permanent-magnet material is: the polarity of permanent-magnet material is identical on same annulus, the polarity of two employed permanent-magnet materials of annulus on same thrust-bearing chassis is opposite, is that the same sex is relative in the polarity of the permanent-magnet material on shaft joint or the main thrust bearings between low bottom-disc, on the identical annulus of relative position place diameter.

5. by the described small power vertical axle wind-mill generator of claim 2, it is characterized in that: wherein: the main bearing concrete structure that contains compound thrust-bearing is: the main thrust bearings low bottom-disc and the main thrust bearings top bottom-disc that comprise mutual fastening, central part at the main thrust bearings low bottom-disc is provided with main thrust bearings chassis rotary middle spindle, central part at the main thrust bearings top bottom-disc is established axis hole, the axis hole socket of main thrust bearings chassis rotary middle spindle and main thrust bearings top bottom-disc central part is installed together the upper and lower chassis of main thrust bearings rotary type; On main thrust bearings low bottom-disc and main thrust bearings top bottom-disc, arrange the even number donut that constitutes by permanent-magnet material respectively at the relative position place; Be provided with a sleeve pipe that is slidingly matched outside the rotary middle spindle of main thrust bearings chassis, the upper/lower terminal of sleeve pipe is equipped with radial ball bearing respectively, and the outer ring of the bearing of radial ball bearing is fixed in the axis hole of main thrust bearings top bottom-disc central part.

6. by the described vertical shaft low power wind driven generator of claim 5, it is characterized in that: described main thrust bearings top bottom-disc links to each other with the newel bottom, and described main thrust bearings low bottom-disc is installed on the pedestal.

7. by claim 2,3,4 or 5 described vertical shaft low power wind driven generators, it is characterized in that: described permanent-magnet material adopts neodymium iron boron.

8. by the described vertical shaft low power wind driven generator of claim 1, it is characterized in that: sail leaf shaft joint (5) is compound thrust-bearing or roller thrust bearing structure.

9. by the described vertical shaft low power wind driven generator of claim 8, it is characterized in that: the roller thrust bearing structure of described sail leaf shaft joint is made up of interior axle and two thrust-bearings, the two ends of axle in two thrust-bearings are configured in, same model, direction are provided with on the contrary; Establish splined hole in the interior axle center hole, on the axle, in the thrust-bearing outside, fixedly the interior of thrust-bearing encircled on interior in jump ring was installed in.

10. by the described vertical shaft low power wind driven generator of claim 1, it is characterized in that: described anchor is by overlapping in the anchor, the anchor overcoat, upper bearing (metal), lower bearing and anchor yoke are formed, in anchor, establish upper bearing (metal) and lower bearing between cover and the anchor overcoat, overlap in the anchor and link to each other with the newel top by adpting flange, anchor yoke by anchor cable fixedly anchor be coated at ground; Or anchor is made up of central shaft, bearing unit, anchor disc, wherein establishes a central shaft at the anchor disc center, and there is a seam lower end of central shaft, central shaft is passed on the low bottom-disc rotary middle spindle of the main bearing that newel is packed in by seam; The top of central shaft is movably arranged on newel by bearing unit, and anchor disc is by anchor yoke, cable wire anchoring.

11. by the described vertical shaft low power wind driven generator of claim 10, it is characterized in that: this bearing unit is made up of overcoat, interior cover, radial ball bearing, its overcoat is a flange arrangement, be packed in by bolt on the upper flanges of newel, interior cover is slidingly matched with central shaft, between overcoat and the interior cover radial ball bearing is arranged.

12., it is characterized in that: add auxiliary anchor pole on anchor cable by claim 1 or 10 described vertical shaft low power wind driven generators.

13. by the described vertical shaft low power wind driven generator of claim 1, it is characterized in that: described power transmission mechanism is the generator shaft joint, by splined shaft and spline housing suit, splined shaft be placed through main bearing main thrust bearings chassis rotary middle spindle, link to each other with newel by flange plate, splined shaft passes through the spline engagement of set spline boss of outer wall and inwall, and the input of speed reducer generator set is linked on the wheel in the spline housing below by flange plate; Or described power transmission mechanism is made up of gear ring and transmission gear, and gear ring is installed on the main thrust bearings top bottom-disc of main bearing, and in transmitting gear engagement, transmits gear and be connected with the speed reducer generator set.