CN207824375U - The displacement corrector of pitch variable bearings for wind power generating set - Google Patents
The displacement corrector of pitch variable bearings for wind power generating set Download PDFInfo
- Publication number
- CN207824375U CN207824375U CN201721918698.0U CN201721918698U CN207824375U CN 207824375 U CN207824375 U CN 207824375U CN 201721918698 U CN201721918698 U CN 201721918698U CN 207824375 U CN207824375 U CN 207824375U
- Authority
- CN
- China
- Prior art keywords
- variable bearings
- pitch variable
- wind power
- power generating
- generating set
- 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
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 32
- 238000012937 correction Methods 0.000 claims abstract description 43
- 239000011241 protective layer Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of displacement corrector of the pitch variable bearings for wind power generating set, and the displacement corrector of the dislocation for correcting the bolt hole between pitch variable bearings and wheel hub, the pitch variable bearings for wind power generating set includes：Correcting component, correcting component include extensible member and correcting bar, and extensible member provides thrust for correcting bar；Correction component, correction component can be flexible along the length direction of correction component.The displacement corrector of pitch variable bearings according to the present utility model for wind power generating set, the alignment correction of pitch variable bearings can be realized in tower by correcting component and correction component, without dismantling impeller, therefore it can shorten the O＆M time, and reduce operation maintenance personnel, to reduce O＆M cost, the generating efficiency of wind power generating set is promoted.
Description
Technical field
The utility model is related to technical field of wind power generation, and in particular to a kind of pitch variable bearings for wind power generating set
Displacement corrector.
Background technology
When assembling the pitch variable bearings of wind power generating set, since assembling quality is poor, bolt hole centering is unqualified (that is, spiral shell
Keyhole may misplace radially) etc. factors, cause the connection bolt between pitch variable bearings and wheel hub to bear additional shearing force.
With the long-play of wind power generating set, connection bolt is caused to be cut, even if replacing connection bolt, connection bolt still can
Additional shearing force is born, therefore can not be used for a long time.
Currently, to solve the above-mentioned problems, operation maintenance personnel gets off impeller demolition usually using crane, and impeller is transported
In defeated carriage return, pitch variable bearings and wheel hub are assembled again.In this case, it has the disadvantage that：Due to impeller body
Product is huge, and lifting, which is dismantled and transported, needs the time expended longer between carriage return, needs to distribute more human and material resources cooperation and
At, wind power generating set will necessarily be made to be in shutdown status for a long time in this way, generated energy is caused to reduce, unit working efficiency drop
Low, the loss of generation is relatively high；Meanwhile manpower, goods and materials are put into during lifting and transport, virtually increase dimension
Accomplish this, leads to the wasting of resources.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of alignment corrections of the pitch variable bearings for wind power generating set
Device, the problems such as to solve existing for existing bearing calibration high such as loss and the wasting of resources.
One side according to the present utility model provides a kind of alignment correction dress of the pitch variable bearings for wind power generating set
It sets, the dislocation for correcting the bolt hole between pitch variable bearings and wheel hub, the dislocation of the pitch variable bearings for wind power generating set
Means for correcting may include：Correcting component, correcting component include extensible member and correcting bar, and extensible member provides thrust for correcting bar；School
Positive component, correction component can be flexible along the length direction of correction component.
Preferably, extensible member can be first hydraulic cylinder, and correcting bar may connect to stretching for the hydraulic cylinder rod of first hydraulic cylinder
Outlet.
Preferably, correction component may include that second hydraulic cylinder and supporting rod, the first end of supporting rod may connect to the second liquid
Cylinder body one end of cylinder pressure.
Preferably, the second end of supporting rod may connect to the first arc panel, the external part of the hydraulic cylinder rod of second hydraulic cylinder
The second arc panel is may connect to, the first arc panel and the second arc panel are formed as the arc to match with bearing surface.
Preferably, supporting rod may be provided with fixed frame, the first arc panel can by being connected to one end of fixed frame with branch
Strut connects.
Preferably, the surface of the first arc panel and the second arc panel can be formed with protective layer.
Preferably, protective layer can be by constituting with elastic and anti-skidding material.
Preferably, correction component may include that jack and supporting rod, the first end of supporting rod may be connected to the one of jack
End, described one end of jack and the external part of jack back to.
Displacement corrector according to the present utility model can realize variable pitch by correcting component and correction component in tower
The alignment correction of bearing without dismantling impeller, therefore can shorten the O＆M time, and reduce operation maintenance personnel, to reduce O＆M
Cost promotes the generating efficiency of wind power generating set.
In addition, displacement corrector according to the present utility model, only can be realized change by correcting component and correction component
Paddle shaft is held to be precisely aligned with the bolt hole of wheel hub, simple in structure, easily operated and implement.
In addition, displacement corrector according to the present utility model, since correcting component and correction component are scalable structure
Part, therefore be applicable to different types and there is various sizes of pitch-controlled system.
Description of the drawings
Through a description of the embodiment given below with reference to the drawings, the above-mentioned and other purposes and feature of the utility model
It will become apparent, in the accompanying drawings：
Fig. 1 is the schematic diagram of the correcting component of the displacement corrector of embodiment according to the present utility model.
Fig. 2 is the schematic diagram of the correction component of the displacement corrector of embodiment according to the present utility model.
Fig. 3 is the side view of the correction component of the displacement corrector of embodiment according to the present utility model.
Fig. 4 and Fig. 5 is to show the displacement corrector of embodiment according to the present utility model in a state of use respectively
Schematic diagram.
Drawing reference numeral explanation：
10：Correcting component；11：First hydraulic cylinder；11a：Hydraulic cylinder rod；12：Correcting bar；20：Correction component；21：Second
Hydraulic cylinder；21a：Hydraulic cylinder rod；22：Supporting rod；22a：Fixed frame；23：First arc panel；24：Second arc panel；30：Variable pitch
Bearing；31：Inner ring；40：Wheel hub.
Specific implementation mode
Now, embodiment according to the present utility model is described in detail with reference to the accompanying drawings, its example is shown in the drawings,
In, identical label always shows identical component.
Fig. 1 is the schematic diagram of the correcting component of the displacement corrector of embodiment according to the present utility model.Fig. 2 is basis
The schematic diagram of the correction component of the displacement corrector of the embodiments of the present invention.Fig. 3 is implementation according to the present utility model
The side view of the correction component of the displacement corrector of example.
As depicted in figs. 1 and 2, the displacement corrector of embodiment according to the present utility model may include 10 He of correcting component
Correction component 20.Correcting component 10 may include extensible member and correcting bar 12.Extensible member can be that correcting bar 12 provides thrust.Correction
Component 20 can stretch along its length, to apply thrust to bearing surface.
Specifically, as shown in Figure 1, the extensible member of correcting component 10 can be first hydraulic cylinder 11.Correcting bar 12 can connect
In the external part of the hydraulic cylinder rod 11a of first hydraulic cylinder 11.Correcting bar 12 can be connected to liquid by connector as illustrated in FIG. 1
The external part of cylinder pressure bar 11a, but not limited to this.In the present embodiment, any connection part can be used, make as long as it plays connection
With correcting bar 12 can be connected to the external part of hydraulic cylinder rod 11a.First hydraulic cylinder 11 can by control oil inlet quantity come
Control pressure provides thrust for correcting bar 12.In addition, the pressure of first hydraulic cylinder 11 is smaller than equal to 300N, to prevent from damaging
Connecting hole to be corrected.The diameter of correcting bar 12 is smaller than the diameter of connecting hole to be corrected, for example, than connecting hole to be corrected
The small 1~2mm of diameter.Correcting bar 12 can be automatically inserted by the outward thrust of the hydraulic cylinder rod 11a of first hydraulic cylinder 11
In connecting hole to be corrected.
Although it is first hydraulic cylinder 11 to describe extensible member, the structure of extensible member is without being limited thereto, and extensible member can also be
Other kinds of structure, as long as Telescopic can be realized.
As shown in Figures 2 and 3, correction component 20 may include second hydraulic cylinder 21 and supporting rod 22.The first of supporting rod 22
End is connected to cylinder body one end of second hydraulic cylinder 21, and second end is connected to the first arc panel 23.The hydraulic cylinder of second hydraulic cylinder 21
The external part of bar 21a is connected to the second arc panel 24.First arc panel 23 and the second arc panel 24 are formed as and bearing surface phase
The arc matched.
The first end of supporting rod 22 can be connected to cylinder body one end of second hydraulic cylinder 21 by connector as described in Figure 2,
Second arc panel 24 can be connected to the second end of supporting rod 22 by connector as described in Figure 2, but not limited to this.In this implementation
In example, it any connection part that can be used can the first end of supporting rod 22 be connected to the second hydraulic pressure as long as it plays connection function
Second arc panel 24 is connected to the second end of supporting rod 22 by cylinder body one end of cylinder 21.
In addition, in the embodiments of the present invention, in order to reinforce the intensity of supporting rod 22, can be set on supporting rod 22
Set fixed frame 22a.Specifically, fixed frame 22a can be set at the second end of supporting rod 22, Fig. 2 shows be provided with it is solid
Determine the structure of frame 22a, and the first arc panel 23 is connected to one end of fixed frame 22a in fig. 2, is i.e. the of supporting rod 22
At two end positions, to be connect with supporting rod 22, to ensure that supporting rod 22 acts on the support strength of bearing surface.Specifically, Gu
The structure and position that the position of the structure and setting of determining frame provides in being not limited to the present embodiment, if can allow supporting rod 22 with support
Junction plays secure support when acting on, and increases its support strength.Similarly, 22 structure of supporting rod is not limited to above-mentioned machine
Structure may be configured to the structure for realizing high intensity support.In addition, the first arc panel 23 can be connected by modes such as welding
It is connected to one end of fixed frame 22a, but not limited to this, other modes or connector also can be used, as long as can be by the first arc panel
23 are connected to one end of fixed frame 22a.
Fig. 4 and Fig. 5 is to show the displacement corrector of embodiment according to the present utility model in a state of use respectively
Schematic diagram.
As shown in Figure 4 and Figure 5, when carrying out alignment correction to pitch variable bearings 30, correcting component 10 may be arranged at pitch axis
It holds between 30 and bucket cover plate (not shown), and correcting bar 12 can be plugged into the connecting hole of inner ring 31 of pitch variable bearings 30,
And the thrust for making first hydraulic cylinder 11 possess 250N.
In addition, correction component 20 is put into the inner ring 31 of wheel hub 40 and pitch variable bearings 30, make the second end of supporting rod 22
The first arc panel 23 against the inner surface of wheel hub 40, so that the second arc panel 24 that the external part with hydraulic cylinder rod 21a is connect is supported
By the inner surface of the inner ring 31 of pitch variable bearings 30.Second hydraulic cylinder 21 can be by controlling oil inlet quantity by control pressure.When the second liquid
After 21 oil inlet of cylinder pressure, hydraulic cylinder rod 21a is protruding to provide scheduled thrust, radially to push pitch variable bearings 30, to
Make connecting hole corresponding hole alignment radially.At this point, the correcting bar 12 of correcting component 10 be automatically inserted into wheel hub 40 with
In the corresponding hole of above-mentioned connecting hole, alignment correction is completed.
The pressure of second hydraulic cylinder 21 is smaller than equal to 100KN, to avoid the interior table of the inner ring 31 of damage pitch variable bearings 30
The inner surface in face and wheel hub 40.
In addition, for the ease of being contacted with the inner surface of the inner surface of wheel hub 40 and the inner ring 31 of pitch variable bearings 30, it is above-mentioned
First arc panel 23 and the second arc panel 24 can be respectively formed as matching with the inner surface of the inner surface of wheel hub 40 and inner ring 31
Arc, and the first arc panel 23 and the second arc panel 24 are contacted with the inner surface of wheel hub 40 and pitch variable bearings 30 respectively
Protective layer (not shown) is respectively formed on surface.The protective layer can have elastic and anti-skidding material by rubber etc.
It is formed.The protective layer can not only protect the inner ring of the first arc panel 23, the second arc panel 24 and wheel hub 40 and pitch variable bearings 30
31 inner surface contact surface not due to thrust by outside deterioration, and because protective layer use elastic material, pushing away
Cushioning effect is played when force effect, avoids discontinuity.
Although showing that the external part of supporting rod 22 and hydraulic cylinder rod 21a are respectively equipped with the first arc panel in above-described embodiment
23 and second arc panel 24 example, but the first arc panel 23 and the second arc panel 24 be used only for protection pitch variable bearings 30
It is arranged with the inner wall of wheel hub 40, as needed, the first arc panel 23 and the second arc panel 24 can be omitted.Certainly, supporting rod
The bearing surface of the external part of 22 and hydraulic cylinder rod 21a can be interchanged, that is, supporting rod 22 abuts the interior of the inner ring 31 of pitch variable bearings 30
Surface, the external part of hydraulic cylinder rod 21a abut the inner surface of wheel hub 40.As long as second hydraulic cylinder 21 can be realized to supporting rod 22
Thrust, to ensure that the connecting hole of pitch variable bearings 30 hole corresponding on wheel hub 40 is aligned.
Above though it is shown that the concrete structure of correction component 20, but the concrete structure of correction component 20 is without being limited thereto.Example
Such as, as another example, correction component 20 may include jack (for example, screw jack) and supporting rod 22, supporting rod 22
First end be connected to one end of jack, the end of jack and the external part of jack back to.Similarly, to pitch variable bearings
30 when carrying out alignment correction, and the second end of supporting rod 22 is against the inner surface of wheel hub 40, and the external part of jack is against pitch axis
Hold the inner surface of 30 inner ring 31.It is useful for and the inner ring of pitch variable bearings 30 31 in addition, the external part of jack may also set up
Inner surface contact and be formed with the second arc panel 24 of protective layer.
In the following, the operation of displacement corrector will be described in detail, to be more fully understood from the embodiments of the present invention
Displacement corrector.
When carrying out alignment correction to pitch variable bearings 30, first, will be inserted in the first connecting hole and the second connecting hole
Two disassembly of fastener get off.
Then, by two correcting components 10 be arranged at a predetermined interval between pitch variable bearings 30 and bucket cover plate and with tear open
Unsnatch fastener the first connecting hole and the second connecting hole alignment, control first hydraulic cylinder 11 with scheduled thrust (for example,
250N) two correcting bars 12 are inserted respectively into the first connecting hole and the second connecting hole.In practical operation, due to pitch axis
The structure limitation for holding 30 is at least needed using two correcting components 10 when being corrected to pitch variable bearings 30 to improve correction
Precision.Although showing two correcting components in Fig. 4 and Fig. 5, but not limited to this.In order to improve calibration result, three are also can be used
A or more correcting component.
Then, it will be placed on bucket cover plate for placing the supporting plate (not shown) of correction component 20 and structure will be corrected
Part 20 is placed on supporting plate, can be estimated the dislocation direction of the first connecting hole and the second connecting hole in advance, be corrected with reasonable Arrangement
The setting orientation of component 20, it is opposite with the dislocation direction of the first connecting hole and the second connecting hole to apply to pitch variable bearings 30
The thrust in direction.
Then, by controlling the oil inlet quantity of second hydraulic cylinder 21 the hydraulic cylinder rod 21a of second hydraulic cylinder 21 is stretched out,
And then make the first arc panel 23 against the inner surface of wheel hub 40 and reliably contact, make the second arc panel 24 against pitch variable bearings
It the inner surface of 30 inner ring 31 and reliably contacts.
Then, the fastener of the inner ring 31 and wheel hub 40 that connect pitch variable bearings 30 is all unscrewed, that is, observation pitch variable bearings
There is the gap of 1~2mm between 30 40 contact surface of inner ring 31 and wheel hub.
Then, the oil inlet quantity of second hydraulic cylinder 21 is slowly adjusted, the hydraulic cylinder rod 21a stretching of second hydraulic cylinder 21 makes the
Two arc panels 24 apply the opposite thrust of dislocation direction to the inner ring 31 of pitch variable bearings 30, with 31 edge of inner ring of pitch variable bearings 30
It moves radially, correcting bar 12 can be automatically inserted into being connect with first for wheel hub 40 under the action of the thrust of first hydraulic cylinder 11
In hole and the corresponding hole of the second connecting hole, so that the bolt hole of wheel hub 40 and pitch variable bearings 30 is aligned.
When the first connecting hole and the second connecting hole are aligned, all fasteners are all fastened, and by alignment correction
Device disassembles.
Displacement corrector according to the present utility model can realize variable pitch by correcting component and correction component in tower
The alignment correction of bearing without dismantling impeller, therefore can shorten the O＆M time, and reduce operation maintenance personnel, to reduce O＆M
Cost promotes the generating efficiency of wind power generating set.
In addition, displacement corrector according to the present utility model, only can be realized change by correcting component and correction component
Paddle shaft is held to be precisely aligned with the bolt hole of wheel hub, simple in structure, easily operated and implement.
In addition, displacement corrector according to the present utility model, since correcting component and correction component are scalable structure
Part, therefore be applicable to different types and there is various sizes of pitch-controlled system.
Although the embodiments of the present invention are described in detail above, those skilled in the art are not departing from this reality
With in novel spirit and scope, various modifications and deformation can be made to the embodiments of the present invention.It is understood that
Apparently, these modification and variation will fall into the embodiments of the present invention defined by claim to those skilled in the art
In spirit and scope.
Claims (8)
1. the displacement corrector of a kind of pitch variable bearings for wind power generating set, for correcting between pitch variable bearings and wheel hub
Bolt hole dislocation, which is characterized in that the displacement corrector of the pitch variable bearings for wind power generating set includes：
Correcting component (10), the correcting component (10) include extensible member and correcting bar (12), and the extensible member is the correcting
Bar (12) provides thrust；
Correction component (20), the correction component (20) can be flexible along the length direction of the correction component (20).
2. the displacement corrector of the pitch variable bearings according to claim 1 for wind power generating set, which is characterized in that
The extensible member is first hydraulic cylinder (11), and the correcting bar (12) is connected to the hydraulic cylinder rod of the first hydraulic cylinder (11)
The external part of (11a).
3. the displacement corrector of the pitch variable bearings according to claim 2 for wind power generating set, which is characterized in that
The correction component (20) includes second hydraulic cylinder (21) and supporting rod (22), and the first end of the supporting rod (22) is connected to institute
State cylinder body one end of second hydraulic cylinder (21).
4. the displacement corrector of the pitch variable bearings according to claim 3 for wind power generating set, which is characterized in that
The second end of the supporting rod (22) is connected to the first arc panel (23), the hydraulic cylinder rod (21a) of the second hydraulic cylinder (21)
External part be connected to the second arc panel (24), first arc panel (23) and second arc panel (24) are formed as and support
The arc that junction matches.
5. the displacement corrector of the pitch variable bearings according to claim 4 for wind power generating set, which is characterized in that
The supporting rod (22) is provided with fixed frame (22a), and first arc panel (23) is by being connected to the fixed frame (22a)
One end and connect with the supporting rod (22).
6. the displacement corrector of the pitch variable bearings according to claim 5 for wind power generating set, which is characterized in that
The surface of first arc panel (23) and second arc panel (24) is formed with protective layer.
7. the displacement corrector of the pitch variable bearings according to claim 6 for wind power generating set, which is characterized in that
The protective layer with elastic and anti-skidding material by constituting.
8. the displacement corrector of the pitch variable bearings according to claim 2 for wind power generating set, which is characterized in that
The correction component (20) includes jack and supporting rod (22), and the first end of the supporting rod (22) is connected to the jack
One end, described one end of the jack and the external part of the jack back to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721918698.0U CN207824375U (en) | 2017-12-29 | 2017-12-29 | The displacement corrector of pitch variable bearings for wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721918698.0U CN207824375U (en) | 2017-12-29 | 2017-12-29 | The displacement corrector of pitch variable bearings for wind power generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207824375U true CN207824375U (en) | 2018-09-07 |
Family
ID=63390955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721918698.0U Active CN207824375U (en) | 2017-12-29 | 2017-12-29 | The displacement corrector of pitch variable bearings for wind power generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207824375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847231A (en) * | 2020-07-24 | 2020-10-30 | 湘电风能有限公司 | Simple device for improving hoisting and butt joint efficiency of blades of wind generating set |
-
2017
- 2017-12-29 CN CN201721918698.0U patent/CN207824375U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847231A (en) * | 2020-07-24 | 2020-10-30 | 湘电风能有限公司 | Simple device for improving hoisting and butt joint efficiency of blades of wind generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0318003A (en) | Process for assembling or disassembling a part of a wind power installation without the use of a crane, and wind power installation | |
| CN204248801U (en) | Heavy duty detergent stator bearing shell dismounting device | |
| CN207824375U (en) | The displacement corrector of pitch variable bearings for wind power generating set | |
| CN204324052U (en) | Transport frock | |
| CN103912135B (en) | Space truss structure chord member apparatus for correcting and antidote | |
| CN101623815A (en) | Elastic seal fastening ring assembling tool | |
| CN203636756U (en) | Bearing disassembling tool | |
| CN205817735U (en) | Disassembling fixture | |
| CN109956310A (en) | Blanking system for part | |
| CN104440766B (en) | A kind of disassembling fixture of interference bolt and method | |
| CN203557087U (en) | Bulb cross-flow type runner blade dismounting device | |
| CN206373845U (en) | End ring is dismantled and erecting device | |
| CN108397628A (en) | A kind of metal bellows of the positive silk structure of band | |
| CN208365086U (en) | A kind of immersible pump tower support device | |
| CN207917878U (en) | Support roller quick replacement device | |
| CN205009154U (en) | Isolated plant is dismantled to band conveyer drum shaft bearing | |
| CN204858894U (en) | Outer oil blanket dismounting device of motor | |
| CN208358704U (en) | Motor bearings dismantles auxiliary device | |
| CN203769639U (en) | Stair installation device for engineering machinery | |
| CN105922165B (en) | A kind of unilateral oil cylinder disassembly clamping device and its operating method | |
| CN201539848U (en) | Comb-shape channel steel locating device | |
| CN204324053U (en) | Transport frock | |
| CN109693098A (en) | A kind of universal planetary wheel of wind turbine gearbox bearing removal equipment | |
| CN221220536U (en) | Full-section spray fixing device | |
| CN103387101A (en) | Equipment for supporting wind power generating set tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |