CN202510680U - Wind-power acceleration gearbox and mounting structure of hollow shaft thereof - Google Patents
Wind-power acceleration gearbox and mounting structure of hollow shaft thereof Download PDFInfo
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- CN202510680U CN202510680U CN 201220049268 CN201220049268U CN202510680U CN 202510680 U CN202510680 U CN 202510680U CN 201220049268 CN201220049268 CN 201220049268 CN 201220049268 U CN201220049268 U CN 201220049268U CN 202510680 U CN202510680 U CN 202510680U
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
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Abstract
The utility model provides a wind-power acceleration gearbox and a mounting structure of a hollow shaft thereof. The wind-power acceleration gearbox is internally provided with a planetary gear train and an ordinary gear train, wherein the planetary gear train comprises a planetary carrier which is in driving connection with a wind wheel main shaft; a first rotation stopping surface is arranged on the outer circumferential wall of the first end of the hollow shaft; a circumferential positioning member is arranged on the planetary carrier; a second rotation stopping surface which is matched with the first rotation stopping surface is arranged on the circumferential positioning member; an axial limiting member is arranged between the hollow shaft and the planetary carrier; and the second end of the hollow shaft is supported by a cylindrical roller bearing which is arranged between the hollow shaft and a body of the wind-power acceleration gearbox. According to the technical scheme disclosed by the utility model, the mounting and the dismounting are easy and the service life of a supporting bearing of the hollow shaft is long.
Description
Technical field
The utility model relates to the wind-powered electricity generation field, more specifically, relates to the mounting structure of a kind of wind power speed-increasing gear-box and hollow shaft thereof.
Background technique
Along with minimizing gradually, the energy unit price of non-renewable energy resources are increasingly high; Reproducible new energy more and more receive people's attention; Particularly under the support of national policy, a lot of enterprises get into various new energy, clean energy resource ranks, particularly wind energy power industry.There is pair wind-force wind-powered electricity generation unit durability must not be less than 20 years regulations in the international standard; This regulation comprises the life-span of each assembly in the wind power generating set; Like wind power speed-increasing gear-box, generator etc.; Particularly, very strict to the regulation of wind power speed-increasing gear-box, because its reliability directly influences the reliability of whole wind power generating set.Though the gear-box that each wind-powered electricity generation gear-box manufacturer produces is in power, internal structure, apparent design difference, the mounting structure of the hollow shaft in the wind power speed-increasing gear-box is identical substantially.Referring to Figure 10 to Figure 13, existing technology hollow mandrel mounting structure mainly contains following two kinds:
A kind of like Figure 10 and shown in Figure 11, show the roller bearing supporting type hollow shaft mounting structure of existing technology.By finding out that be provided with planetary gear train and fixed shaft gear train in this wind power speed-increasing gear-box, wherein planetary gear train comprises gear for two stage planetary gear train, and toggle 2 ' also is installed on the wind power speed-increasing gear-box among the figure.The one-level planetary gear train comprises planet carrier 31 ', ring gear 32 ', planet wheel 33 ' and sun gear 34 '.Planet carrier 31 ' is with the installation of wind wheel gap of main reinforcement and by the wind wheel main shaft drives.Thereby driving sun gear 34 ' rotates.The secondary planet train comprises planet carrier 41 ', ring gear 42 ', planet wheel 43 ' and sun gear 44 ', and planet carrier 41 ' and sun gear 34 ' coaxial interlock rotate thereby drive sun gear 44 '.Fixed shaft gear train comprises intermeshing fixed gear 61 ' and fixed gear 62 ', and fixed gear 61 ' and sun gear 44 ' coaxial interlock drive fixed gear 62 ' and rotate.The rotating shaft of fixed gear 62 ' is a pto, links with generator shaft.First end of hollow shaft 5 ' is located in the endoporus of planet carrier 31 '; The endoporus of its hollow is used for wearing the cable of control wind wheel blade sense of rotation and angular dimension, and second end of hollow shaft 5 ' is supported on the rear end cover of wind power speed-increasing gear-box by roller bearing 9 '.Hollow shaft 5 ' needs coaxial interlock with planet carrier 31 ' and does not move axially with respect to the wind power speed-increasing gear case body.By finding out in the partial enlarged drawing of Figure 11, first end of hollow shaft 5 ' is welded with flange plate 7 ', and flange plate 7 ' is connected through bolt with planet carrier 31 ', thereby hollow shaft 5 ' has been formed the location and installation of circumferential and axial.In addition, through the sealer sealing, leak outside between flange plate 7 ' and the planet carrier 31 ' to prevent the inner lubricant oil of gear-box.
But being connected through flange plate with bolt between the above-mentioned roller bearing supporting type hollow shaft mounting structure, hollow shaft and planet carrier, is to be rigidly connected, and therefore has following problem:
1) if during the non-constant of the coaxality of the axis hole of the installation hollow shaft 5 ' on the planet carrier 31 ' and planet carrier two supports bearing; Will there be hollow shaft 5 ' and the roller bearing 9 ' decentraction that its rear end is installed; When planet carrier 31 ' drive hollow shaft 5 ' rotates together; Can produce additional moment of flexure to roller bearing 9 ', bearing life is shortened;
2) if flange plate 7 ' adds man-hour after welding; Its end face that contacts with planet carrier 31 ' is during with respect to the non-constant of perpendicularity of hollow shaft 7 ' axis; Equally also there are hollow shaft and the roller bearing decentraction that its rear end is installed; Can produce additional moment of flexure to roller bearing equally, bearing life is shortened.
3) bearing of planet carrier front end, rear end; There is certain play; And the wind-powered electricity generation gear-box is to lock, hang on whole gear-box on the main shaft through locking plate through the planet carrier 31 ' and the wind wheel main shaft of wind power generating set, and when gear-box did not turn round, trace sank gear-box in the rear end of the effect lower tooth roller box of self gravitation; At this moment, this trace sinks to being applied on the hollow shaft 5 ' through roller bearing 9 '.When roller bearing 9 ' is produced additional bending moment, also can produce harmful effect to the clamping bolt of its front end flange dish 7 ', in the course of time, or bolt gets loose, or the sealing of flange plate 7 ' and planet carrier degenerates, occurs oil leakage phenomenon.
4) installation of the inner ring of roller bearing 9 ', (shown in figure 10) is installed on the hollow shaft 5 ' after hollow shaft 5 ' passes planet carrier 31 ', one-level sun gear endoporus 34 ', secondary sun gear endoporus 44 '.When improper maybe need advance to keep in repair the time in assembling; If the diameter of one-level sun gear endoporus, secondary sun gear endoporus is during less than the external diameter of roller bearing 9 ' inner ring; Can not the hollow shaft assembly that have bearing inner race be transferred to from one-level sun gear endoporus or secondary sun gear endoporus; If the design of the diameter of one-level sun gear endoporus, secondary sun gear endoporus is bigger, then sun gear tooth root flexural strength reduces greatly; And when transfering to the hollow shaft assembly, the periphery to bearing inner race causes scuffing easily.If the bearing inner race of hot charging is pulled down, this is again very a difficulty and a complicated process, and assembling, maintenance efficiency reduce greatly.
Another kind of like Figure 12 and shown in Figure 13, show the deep groove ball bearing supporting type hollow shaft mounting structure of existing technology.By finding out among the figure, be provided with gear for two stage planetary gear train and fixed shaft gear train equally in this wind power speed-increasing gear-box, planet carrier 31 " by the wind wheel main shaft drives, the gear shaft 62 of fixed shaft gear train " be pto.Hollow shaft 5 " first end stretches out planet carrier 31 " offer gap on the sidewall of endoporus, at planet carrier 31 " on be bolted with circumferential retainer 7 ", circumferential retainer 7 " have the chock that stretches in the gap, make hollow shaft 5 " with planet carrier 31 " rotate synchronously.Hollow shaft 5 " second end is by deep groove ball bearing 9 " support deep groove ball bearing 9 " and the outer ring be installed in the gear-box rear end cover deep groove ball bearing 9 " to hollow shaft 5 " play the effect of axially locating.Hollow shaft 5 " first end and planet carrier 31 " between through O RunddichtringO sealing, leak outside to prevent the inner lubricant oil of gear-box.
But above-mentioned deep groove ball bearing supporting type hollow shaft mounting structure, hollow shaft assembly and planet carrier are installed the drawback below existing:
1) be installed on hollow shaft 5 " deep groove ball bearing 9 of rear end " in installation process, can not carry out the assembling respectively of inner ring, outer ring.If to bearing 9 " carry out the integral body heating, be installed on hollow shaft 5 earlier " on, carry out the assembling of gear-box rear end cover again, because the bearing outer diameter after the heating becomes big, can not realize the installation of outer ring upper gear box rear end cover.If bearing 9 " adopt Spielpassung, the possibility that exists bearing " to run circle " between outer ring and the gear-box rear end endoporus.
2) though deep groove ball bearing 9 " thrust load can be born, also radial load can be born, its ability of bearing radial load is much smaller than roller bearing.Under same radial load, the life-span of deep groove ball bearing is much smaller than the life-span of roller bearing.
The model utility content
The utility model is intended to propose a kind of mounting structure of wind power speed-increasing gear-box hollow shaft, to solve at least one problem in the problems referred to above that exist in the existing technology.Further, the utility model has also proposed a kind of wind power speed-increasing gear-box.
An aspect according to the utility model; A kind of mounting structure of wind power speed-increasing gear-box hollow shaft is provided; Be provided with planetary gear train and fixed shaft gear train in this wind power speed-increasing gear-box, planetary gear train has the planet carrier that is connected with the wind wheel main shaft drives, and the periphery wall of hollow shaft first end is provided with first standstill face; Circumferential locating piece is installed on the planet carrier, and circumferentially locating piece is provided with second standstill face that cooperates with first standstill face; Be provided with axial limiting spare between hollow shaft and the planet carrier; Second end of hollow shaft is supported by the roller bearing that is arranged between hollow shaft and the wind power speed-increasing gear case body.
Further, the periphery wall of hollow shaft is provided with annular groove, and it is inboard that annular groove is positioned at first standstill face; Axial limiting spare is the limited ring that is installed in the annular groove, and limited ring to protrude from the part of hollow shaft spacing by circumferential locating piece and planetary wheel carrier.
Further, limited ring comprises the arc ring of at least two splits.
Further, first standstill face is a plurality of spline tangent planes, and spline tangent plane and hollow shaft axis parallel and circumferentially evenly distributing around hollow shaft.
Further, circumferentially locating piece is the circumferential positioning ring that is set on first end of hollow shaft.
Further, circumferentially positioning ring comprises: annulus portion, and the internal diameter of annulus portion and the external diameter of limited ring are complementary; The blocked part is installed in the outside end face of annulus portion, and second standstill face is formed on the sidewall of blocked part, and the blocked part forms the backstop to limited ring towards the end face of annulus portion.
Further, circumferentially positioning ring is an integral structure; Second standstill face is two; Also be provided with the recess that is used to hold limited ring on the planet carrier.
Further, also be provided with seal ring between hollow shaft and the planet carrier.
Further, planetary gear train is a gear for two stage planetary gear train.
According to another aspect of the utility model, a kind of wind power speed-increasing gear-box also is provided, be provided with the mounting structure of above-mentioned wind power speed-increasing gear-box hollow shaft.
Technological scheme according to the utility model; Because of second end of hollow shaft is still supported by roller bearing; Through on the first end periphery wall of hollow shaft, being provided with first standstill face; Circumferential locating piece is installed on the planet carrier of correspondence, and circumferentially locating piece is provided with second standstill face, is matched with the circumferential rotation of restriction hollow shaft with respect to planet carrier in first standstill face and second standstill face; In addition; Between hollow shaft and planet carrier, be provided with axial limiting spare; Restriction hollow shaft moving axially with respect to planet carrier; Thereby provide the sealing of a kind of, hollow shaft insensitive and planet carrier to compensate automatically and the spring bearing of hollow shaft can bear the hollow shaft mounting structure of big radial load to planet carrier bearings at both ends changed play; The roller bearing supporting type hollow shaft mounting structure that has overcome existing technology is rigidly connected because of hollow shaft first end and planet carrier, bears big moment of flexure because of precision problem causes hollow shaft and roller bearing easily, the problem that hollow shaft and roller bearing damage easily; Simultaneously, also overcome the deep groove ball bearing supporting type hollow shaft mounting structure of existing technology, deep groove ball bearing bears the problem that ability is little and circle is run in easy generation of radial load.
Description of drawings
The accompanying drawing that constitutes the part of the utility model is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the main pseudosection of embodiment's that the utility model provides wind power speed-increasing gear-box;
Fig. 2 is the side view of embodiment's that the utility model provides wind power speed-increasing gear-box;
Fig. 3 is the partial enlarged drawing of Fig. 1;
Fig. 4 is that the A of Fig. 3 is to figure;
Fig. 5 is the stereogram that the utility model provides the hollow shaft among the embodiment, circumferential locating piece and axially locating part;
Fig. 6 is the plan view that the utility model provides the hollow shaft among the embodiment;
Fig. 7 a is the B-B sectional view of Fig. 6;
Fig. 7 b is the C-C sectional view of Fig. 6;
Fig. 7 c is the D-D sectional view of Fig. 6;
Fig. 8 is the plan view that the utility model provides the circumferential locating piece among the embodiment;
Fig. 9 is the left view that the utility model provides the circumferential locating piece among the embodiment;
Figure 10 is the main pseudosection of a kind of wind power speed-increasing gear-box in the existing technology, wherein adopts roller bearing supporting type hollow shaft mounting structure;
Figure 11 is the partial enlarged drawing of Figure 10;
Figure 12 is the main pseudosection of a kind of wind power speed-increasing gear-box in the existing technology, wherein adopts deep groove ball bearing supporting type hollow shaft mounting structure; And,
Figure 13 is the partial side view of Figure 12.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Referring to Fig. 1 to Fig. 2; Show the structure of embodiment's that the utility model provides wind power speed-increasing gear-box; In the present embodiment; The casing of this wind power speed-increasing gear-box 100 comprises preceding casing 11, middle casing 12, rear box and is installed in the rear end cover 13 on the rear box, is provided with planetary gear train, fixed shaft gear train and hollow shaft 5 in its casing.Toggle 2 also is installed on casing.
Planetary gear train is a gear for two stage planetary gear train, and wherein the one-level planetary gear train comprises planet carrier 31, ring gear 32, planet wheel 33 and sun gear 34.The left end of planet carrier 31 forms porose, and this hole and wind wheel gap of main reinforcement are installed, and promptly planet carrier 31 is connected with the wind wheel main shaft drives.On casing 11 and the middle casing 12, when planet carrier 31 rotates, drive sun gears 34 through planet wheel 33 and rotate before ring gear 32 is installed in.
The secondary planet train comprises planet carrier 41, ring gear 42, planet wheel 43 and sun gear 44; Planet carrier 41 and sun gear 34 coaxial interlocks; Ring gear 42 is fixed between middle casing 12 and the rear box; Planet wheel 43, when planet carrier 41 rotates, drives sun gear 44 through planet wheel 43 and rotates in rotating shaft 45 through Bearing Installation.
Fixed shaft gear train comprises intermeshing fixed gear 61 and fixed gear 62.Fixed gear 61 and sun gear 44 coaxial interlocks, and drive fixed gear 62 rotations.The rotating shaft of fixed gear 62 is a pto, links with generator shaft.
First end of hollow shaft 5 is located in the endoporus of planet carrier 31, and the endoporus of its hollow is used for wearing the cable of control wind wheel blade sense of rotation and angular dimension, and second end of hollow shaft 5 is supported on the rear end cover of wind power speed-increasing gear-box by roller bearing 9.
The concrete Fig. 1 to Fig. 5 that combines; The mounting structure of embodiment's that the utility model provides wind power speed-increasing gear-box hollow shaft is achieved in that the periphery wall of hollow shaft 5 first ends is provided with first standstill face 51; For example circumferential locating piece 7 is installed on the planet carrier 31 through bolt 79 ways of connecting; Circumferential locating piece 7 is provided with 71, the first standstill faces 51, second standstill face and match to the circumferential location of hollow shaft 5 formation in second standstill face 71, stops relatively rotating of hollow shaft 5 and planet carrier 31.Be provided with axial limiting spare between hollow shaft 5 and the planet carrier 31, limit moving axially of hollow shaft 5.Roller bearing 9 is arranged between hollow shaft 5 and the rear end cover 13, and second end of hollow shaft is supported by roller bearing 9.
Like this, adopt the technological scheme of the utility model, under the effect of circumferential locating piece 7 and axial limiting spare, hollow shaft 5 is produced the spacing of circumferential and axial, and second end of hollow shaft 5 is supported by roller bearing 9 still.Existing for existing technology, need there be weld defects in hollow shaft 5 welding back processing, reliability is higher; Insensitive to planet carrier 31 bearings at both ends changed play, low to processing and installation precision requirement, the big bending moment force of avoiding being rigidly connected and causing; Roller bearing 9 can bear bigger radial load, long service life; The bearing inner race of roller bearing 9, outer ring can realize assembling respectively, thereby realize the Assembly And Disassembly of hollow shaft 5, gear-box rear end cover 13 more easily; The installation of hollow shaft can be installed from the gear-box rear end, does not have the situation that when needing the dismounting hollow shaft, must dismantle the cylindrical roller inner ring of hot charging earlier, makes assembling, removal efficiency higher.
Preferably, first standstill face 51 is a plurality of spline tangent planes, and spline tangent plane 51 can form through the periphery wall of milling hollow shaft 5 easily.Each spline tangent plane and hollow shaft 5 axis parallel, and a plurality of spline tangent plane is around the circumferentially evenly distribution of hollow shaft 5, so that hollow shaft 5 is stressed even.In the present embodiment, first standstill face 51 is two, the 180 ° of settings of being separated by.Correspondingly, second standstill face 71 can be for being parallel to the plane of hollow shaft 5 axis.Certainly, first standstill face 51 can also have other forms of structure, for example is that the conical surface or other are irregularly shaped, as long as match to reach the effects that hollow shaft 5 and planet carrier 31 rotate synchronously in second standstill face and first standstill face.
In conjunction with reference to figure 3, Fig. 5, Fig. 6, Fig. 7 a, Fig. 7 b and Fig. 7 c; Show the preferred implementation of axial limiting spare: the periphery wall of hollow shaft 5 is provided with annular groove 52 (referring to the C-C sectional drawing among Fig. 7 b), and annular groove 52 is positioned at 51 inboards, first standstill face.Axial limiting spare is the limited ring 8 that is installed in the annular groove 52, and for the ease of installation and removal, limited ring 8 can be combined by the arc ring of two splits at least.For example limited ring 8 comprises (promptly not being connected) arc rings of two splits in the present embodiment, and two arc rings are for respectively being 180 ° semicircular ring 81 and 82; Certainly, limited ring 8 also has numerous embodiments, for example can also be combined by three arc rings that all are 120 ° split.The interior ring side of limited ring 8 is installed in the annular groove 52, and its outer rim side part that protrudes from hollow shaft 5 is then spacing with planetary wheel carrier 31 by circumferential locating piece 7.
In conjunction with reference to figure 3, Fig. 4, Fig. 5, Fig. 8 and Fig. 9, also show a kind of preferred implementation of circumferential locating piece 7, circumferentially locating piece 7 is the circumferential positioning ring on first end that is set in hollow shaft 5, so that assembling.This circumferential positioning ring comprises annulus portion 72 and blocked part 70 further.By finding out among Fig. 3, the external diameter of the internal diameter of annulus portion 72 and limited ring 8 is complementary; Blocked part 70 is installed in the outside end face of annulus portion 72, and second standstill face 71 is formed on the sidewall of blocked part 70.Blocked part 70 forms spacing to limited ring 8 left ends towards the end face of annulus portion 72, and planet carrier 31 forms spacing to limited ring 8 right-hand members.In addition, be provided with the recess 311 that is used to hold limited ring 8 at planet carrier 31, be convenient to positioning limit ring 8, obviously, the radius of recess 311 is identical with the internal diameter of annulus portion 72.
Circumferential locating piece 7 in the present embodiment can obtain through following processing mode: at first make a barrel-shaped cylindrical body; The external diameter of barrel-shaped cylindrical endoporus aperture and limited ring 8 is complementary; Milling Process at the bottom of adopting " dish-type " milling cutter to bucket to the barrel-shaped cylindrical bucket end then; The working width of Milling Process is identical with distance between two of the hollow shaft 5 first parallel spline tangent planes 51; Thickness is slightly larger than barrel base thickness degree and supplies hollow shaft 5 first ends to pass, and can be integrally formed the circumferential locating piece 7 of formula structure.
Preferably, for preventing the gear-box leakage of oil, also be provided with seal ring 59 between hollow shaft 5 and the planet carrier 31, the D-D cross-section structure among Fig. 7 c is the section that hollow shaft 5 is installed the groove of seal ring 59.Seal ring 59 for example comprises 2 flexible O RunddichtringOs, not only can avoid hollow shaft 5 and planet carrier 31 poorly sealed, and it is insensitive to make 9 pairs of roller bearings that the coaxality size of axis hole and planet carrier 31 two supports bearings of hollow shaft 5 is installed.
The assembly process of the mounting structure of the utility model embodiment's hollow shaft is described below:
1) two O RunddichtringOs 59 is installed on the hollow shaft 5, coats a spot of lubricating grease at O RunddichtringO 59 and adjacent hollow shaft part and planet carrier 31 endoporus in advance, be convenient to install and prevent in installation process, to cause the scratch of O RunddichtringO 59.
The hollow shaft 5 that 2) O RunddichtringO 59 will be installed inserts from the gear-box rear end; Pass secondary sun gear endoporus, one-level sun gear endoporus; The O RunddichtringO position of hollow shaft is installed to the relevant position of planet carrier 31 endoporus; Should try one's best left in this position, just passable as long as the O RunddichtringO does not spill the endoporus of planet carrier.
3) two semicircular ring 81,82 radially are installed in the annular groove 52 of hollow shaft 1, annular groove 52 is arranged in the C-C profile position of Fig. 6.
4) hollow shaft 5 is spurred to the right, fitted in the right side of semicircular ring 81,82 and planet carrier endoporus left side.
5) second standstill face 71 of circumferential positioning ring 7 and first standstill face 51 of hollow shaft 5 are aligned, then circumferential positioning ring 7 is inserted hollow shafts 1.
6) bolt hole of circumferential positioning ring 7 and the bolt hole on the planet carrier 31 are aligned, clamping bolt are installed, clamping bolt 79 usefulness lock washers are locked carry out locking.
7) inner ring with roller bearing 9 is installed on hollow shaft 5 right-hand members, the outer ring that has rolling element, a retainer is installed in the rear end cover 13.
The rear end cover 13 that 8) the roller bearing outer ring will be installed is installed on the gear-box rear box.Hollow shaft installs.
Need to prove; The wind-powered electricity generation step-up gear is realized speedup with the combination of secondary planet train and fixed shaft gear train in the present embodiment, but in other unshowned embodiment, can also be with the combination of one-level planetary gear train and fixed shaft gear train or only realize speedup through multistage fixed shaft gear train; Certainly; For different speedup structures, the structure of wind power speed-increasing gear case body is understood corresponding changing, but does not influence the enforcement of the utility model technological scheme.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. the mounting structure of a wind power speed-increasing gear-box hollow shaft is provided with planetary gear train and fixed shaft gear train in this wind power speed-increasing gear-box (100), and said planetary gear train has the planet carrier (31) that is connected with the wind wheel main shaft drives, it is characterized in that,
The periphery wall of said hollow shaft (5) first ends is provided with first standstill face (51); Circumferential locating piece (7) is installed on the said planet carrier (31), and said circumferential locating piece (7) is provided with second standstill face (71) that cooperates with said first standstill face (51);
Be provided with axial limiting spare between said hollow shaft (5) and the said planet carrier (31);
Second end of said hollow shaft is supported by the roller bearing (9) that is arranged between said hollow shaft (5) and the said wind power speed-increasing gear case body.
2. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 1 is characterized in that,
The periphery wall of said hollow shaft (5) is provided with annular groove (52), and said annular groove (52) is positioned at inboard, said first standstill face (51);
Said axial limiting spare is for to be installed in the limited ring (8) in the said annular groove (52), and said limited ring (8) to protrude from the part of said hollow shaft (5) spacing by said circumferential locating piece (7) and said planetary wheel carrier (31).
3. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 2 is characterized in that, said limited ring (8) comprises the arc ring of at least two splits.
4. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 3; It is characterized in that; Said first standstill face (51) is a plurality of spline tangent planes, and said spline tangent plane and said hollow shaft (5) axis parallel and circumferentially evenly distributing around said hollow shaft (5).
5. according to the mounting structure of each described wind power speed-increasing gear-box hollow shaft in the claim 2 to 4, it is characterized in that said circumferential locating piece (7) is the circumferential positioning ring on first end that is set in said hollow shaft (5).
6. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 5 is characterized in that, said circumferential positioning ring comprises: annulus portion (72), and the external diameter of the internal diameter of said annulus portion (72) and said limited ring (8) is complementary; Blocked part (70); Be installed in the outside end face of said annulus portion (72); Said second standstill face (71) is formed on the sidewall of said blocked part (70), and said blocked part (70) form the backstop to said limited ring towards the end face of said annulus portion (72).
7. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 6 is characterized in that, said circumferential positioning ring is an integral structure; Said second standstill face (71) is two; Also be provided with the recess (311) that is used to hold said limited ring (8) on the said planet carrier (31).
8. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 1 is characterized in that, also is provided with seal ring (59) between said hollow shaft (5) and the said planet carrier (31).
9. the mounting structure of wind power speed-increasing gear-box hollow shaft according to claim 1 is characterized in that, said planetary gear train is a gear for two stage planetary gear train.
10. a wind power speed-increasing gear-box is characterized in that, is provided with the mounting structure of each described wind power speed-increasing gear-box hollow shaft in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220049268 CN202510680U (en) | 2012-02-15 | 2012-02-15 | Wind-power acceleration gearbox and mounting structure of hollow shaft thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220049268 CN202510680U (en) | 2012-02-15 | 2012-02-15 | Wind-power acceleration gearbox and mounting structure of hollow shaft thereof |
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| CN202510680U true CN202510680U (en) | 2012-10-31 |
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| CN 201220049268 Expired - Lifetime CN202510680U (en) | 2012-02-15 | 2012-02-15 | Wind-power acceleration gearbox and mounting structure of hollow shaft thereof |
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| CN103711876A (en) * | 2014-01-08 | 2014-04-09 | 广东明阳风电产业集团有限公司 | Torque transmission device for slip ring hollow shaft of wind driven generator |
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| WO2017139944A1 (en) * | 2016-02-18 | 2017-08-24 | 深圳市兆威机电有限公司 | Miniature gear box and output shaft thereof |
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| CN110725939A (en) * | 2019-11-14 | 2020-01-24 | 南京高速齿轮制造有限公司 | Wind power gear box |
| CN111043282A (en) * | 2019-12-31 | 2020-04-21 | 南京高速齿轮制造有限公司 | Bearing axial limiting structure and wind power gear box |
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Address after: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee after: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. Address before: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee before: SANY ELECTRIC Co.,Ltd. Address after: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206 No. 8 Beiqing Road, Changping District, Beijing Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |
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Granted publication date: 20121031 |