CN202117860U - Fan and wind wheel locking device thereof - Google Patents
Fan and wind wheel locking device thereof Download PDFInfo
- Publication number
- CN202117860U CN202117860U CN2011202006381U CN201120200638U CN202117860U CN 202117860 U CN202117860 U CN 202117860U CN 2011202006381 U CN2011202006381 U CN 2011202006381U CN 201120200638 U CN201120200638 U CN 201120200638U CN 202117860 U CN202117860 U CN 202117860U
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- wind wheel
- lock body
- locking device
- lock pin
- blower fan
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- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 7
- 239000011435 rock Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012938 design process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/50—Maintenance or repair
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
- F03D7/0268—Parking or storm protection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/30—Retaining components in desired mutual position
- F05B2260/31—Locking rotor in position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/50—Kinematic linkage, i.e. transmission of position
- F05B2260/506—Kinematic linkage, i.e. transmission of position using cams or eccentrics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a fan and a wind wheel locking device thereof, wherein the disclosed wind wheel locking device comprises a lock body installed on the frame of the fan and a locking disc fixedly connected with the wind wheel of the fan; a lock pin is disposed in the inner cavity of the lock body; a locking hole matching with the lock pin is disposed on the locking disc; the axial centre line of the lock body and the axial centre line of the lock pin are parallel to each other and are formed with a predetermined distance; the lock body and the lock pin can synchronously rotate around the centre line of the lock body; and the lock body and the frame have at least two fixed connection positions. The wind wheel locking device can remarkably enhances the locking reliability of the wind wheel and prolong the service life thereof. Simultaneously, the back-and-forth swinging amplitude of the wind wheel can be remarkably reduced under the function of a wind force, thereby enhancing the reliability of the wind wheel, prolonging the service life of the wind wheel, and reducing the potential safety hazard of unit and maintenance personnel.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of wind wheel locking device that is used for blower fan.In addition, the utility model also relates to a kind of blower fan that comprises above-mentioned wind wheel locking device.
Background technique
The common complex structure of Large-scale Wind Turbines bulky (cat head main process equipment weight is nearly all more than hundred tons), unit operation height are at tens of rice even more than hundred meters.Because large fan is stressed abominable when running state, unit is in operation can occur unusual or fault unavoidably.In case unusual or fault appear in unit, unit must be shut down rapidly.At this moment, aerodynamic brake, water brake at first drop into by designing program, and make wind speed round drop to certain scope.Finally lock the lockhole of accurate centering wind wheel locking plate, and lock pin is inserted, wind wheel is stopped operating fully, guarantee unit and attendant's safety by wind wheel.Therefore the wind wheel lock is a key of guaranteeing that wind wheel stops operating fast with the accurate centering of wind wheel locking plate.
The effect of wind wheel lock is that unit must be shut down rapidly and in the regular maintenance process, pinned wind wheel when in the fan operation process, unusual or fault occurring, and prevention wind wheel and transmission system are rotated, and guarantee a kind of device of unit and personal security.Its working principle is with the wind wheel lock that is installed in (wind wheel is the transfixion body relatively) on the mainframe; Through hydraulic system the wind wheel lock pin is released; Insert the lockhole interior (the relative frame of the wind wheel of rotation and locking plate can be considered a rotor) of the locking plate that links with wind wheel, to reach the purpose of pinning wind wheel.
Please refer to Fig. 1, Fig. 1 is the partial structurtes schematic representation of a kind of typical blower fan in the existing technology.
Before the utility model, the wind wheel locking device of large scale wind unit mostly adopts structure shown in Figure 1.As can beappreciated from fig. 1 the wind-force unit is to be formed by a plurality of unit constructions, and wherein wind wheel locking device 11 is made up of with locking plate 112 wind wheel lock 111.Wherein, wind wheel lock 111 directly is installed on the frame 12, and locking plate 112 is installed between wheel hub and the main shaft 14 through being installed in related components such as bearing unit 13 on the frame 12, main shaft 14.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of typical wind wheel locking device in the existing technology.
Because above-mentioned each component all have a rational machining tolerance scope in design and machining process, in installation process, also have certain factors such as error.Therefore; Even each related components of wind wheel locking device 11 is machining and is all adhering to specification; But after assembling is accomplished, certainly will there be error a between its actual centre line L 1 (center line of lock pin after the installation and processing) and the theoretical centerline L0 (the desired center line during design).This just makes that lock pin can not make things convenient for, in the locking hole of accurate and effective insertion wind wheel locking plate 112.
Lock pin and locking hole be centering effectively, and its result can cause:
1), the wind wheel lock pin can not effectively contact with the locking hole of locking plate 112, directly causes local contact stress excessive;
2), owing to can not effectively contact, have a large amount of gaps between the locking hole of wind wheel lock pin and locking plate 112, make wind wheel can not be effectively, pinning fully; Under wind action; Wind wheel can rock back and forth, finally possibly damage wind wheel locking device 11, brings potential safety hazard for unit and attendant.
Therefore, how improving the reliability of wind wheel locking, prolong the working life of wind wheel locking device, is the present technical issues that need to address of those skilled in the art.
The model utility content
The purpose of the utility model provides a kind of wind wheel locking device that is used for blower fan, and this locking device can make lock pin and the effective centering of locking hole, significantly improves the locking intensity of blower fan, improves the reliability of wind wheel locking, prolongs the working life of wind wheel locking device.Another purpose of the utility model provides a kind of blower fan that comprises above-mentioned wind wheel locking device.
For realizing above-mentioned model utility purpose; The utility model provides a kind of wind wheel locking device that is used for blower fan; Comprise lock body and the locking plate that is fixedly connected with the wind wheel of said blower fan on the frame that is installed on said blower fan; Be provided with lock pin in the inner chamber of said lock body, said locking plate is provided with the locking hole that cooperates with said lock pin, and the longitudinal center line of said lock body and the longitudinal center line of said lock pin are parallel to each other and have predetermined distance; Said lock body and said lock pin can rotate around the center line of said lock body synchronously, and said lock body has at least two with said frame and is fixedly connected the position.
Preferably, said predetermined distance is more than or equal to the alignment error of respectively forming component and the foozle summation of said wind wheel locking device.
Preferably, said predetermined distance greater than 1.5mm less than 3.5mm.
Preferably; Said lock pin comprises the round platform portion that is located at insertion end and the main part of being located at said round platform portion rear end; The sectional area of said insertion end is less than the area of said locking hole, and the long-pending sectional area with said main part of tail end section of said frustum portion is equal to the area of said locking hole.
Preferably, the end of said lock body is provided with land, and this land circumferentially evenly is provided with some attachment holes along it, and the link that connects said lock body and said frame penetrates said attachment hole.
The utility model also provides a kind of blower fan, comprises frame and wind wheel, also comprises like above-mentioned each described wind wheel locking device; This wind wheel locking device comprises lock body and locking plate; Said lock body is located in the cavity of said frame and can be around himself center line rotation, and has at least two with said frame and be fixedly connected the position; Said locking plate is fixedly connected with said wind wheel.
The wind wheel locking device that the utility model provided is used for the wind wheel of locking blower fan.This wind wheel locking device comprises lock body, lock pin and locking plate, and wherein, lock body is installed on the frame of blower fan, and lock pin is located in the inner chamber of lock body, and locking plate is fixedly connected with the wind wheel of blower fan.Different with existing technology is that the axial centre line parallel of the longitudinal center line of lock pin and lock body has predetermined distance between the two; Lock body and lock pin can rotate around the center line of lock body synchronously.When the wind wheel locking device is installed; The rotation lock body; Lock pin is rotated with lock body synchronously, because lock pin and lock body have eccentric structure, the longitudinal center line of lock pin can be around the center line rotation of lock body; Distance between the center of lock pin and the center of locking hole changes with rotation, adjusts the centre distance of lock pin and locking hole with this.Like this, even the wind wheel locking device has error in production and installation process, also can adjust through the lock body and the lock pin of off-centre; Make the centre distance error of lock pin and locking hole can adjust to minimum, even can adjust to that both are concentric, thereby significantly improve the concentricity of lock pin and locking hole; Improve effective area of contact of lock pin and locking hole; Reduce the local contact stress of lock pin, improve the reliability of wind wheel locking device, prolong its working life.Simultaneously, because the concentricity of lock pin and locking hole improves, can effectively reduce the gap between lock pin and locking hole; Under wind, the amplitude that wind wheel rocks back and forth can significantly reduce, thereby improves the reliability of wind wheel; Prolong the working life of wind wheel, reduce unit and attendant's potential safety hazard.
A kind of preferred embodiment in, said predetermined distance is more than or equal to the alignment error of respectively forming component and the foozle summation of said wind wheel locking device.When predetermined distance during more than or equal to the alignment error of said wind wheel locking device and foozle summation; Be installed in the lock body in the said frame hole through rotation; The center line running orbit of lock pin and the center of locking hole will produce intersection point with the rotating locus of wind wheel, and promptly lock pin can be concentric with locking hole, and this moment, lock pin can insert in the locking hole fully; Both can in full force and effectly contact, and avoid local contact stress excessive.Simultaneously, can also reduce the gap between lock pin and the locking plate, wind wheel can be pinned fully, avoid wind wheel to rock back and forth, further improve the reliability of wind wheel locking device, prolong the working life of wind wheel.
In another preferred embodiment, the end of said lock body is provided with land, and this land circumferentially evenly is provided with some attachment holes along it; According to the centering needs of lock pin and locking hole, the dish that in the rotation lock body, is rotatably connected is when lock pin arrives desirable centering position; Stop the rotation; Utilize this moment link such as bolt to penetrate said attachment hole, be screwed in the corresponding screw of said frame, itself and frame are linked.Since land some attachment holes circumferentially evenly are set, can satisfy the connection needs of lock body, the centering that makes lock pin and locking hole is accurate and effective more.
On the basis that above-mentioned wind wheel locking device is provided, the utility model also provides a kind of blower fan that comprises above-mentioned wind wheel locking device; Because the wind wheel locking device has above-mentioned technique effect, the blower fan with this wind wheel locking device also has the corresponding techniques effect.
Description of drawings
Fig. 1 is the partial structurtes schematic representation of a kind of typical blower fan in the existing technology;
Fig. 2 is the structural representation of a kind of typical wind wheel locking device in the existing technology;
Fig. 3 provides the structural representation of a kind of embodiment of wind wheel locking device for the utility model;
The fundamental diagram that Fig. 4 cooperates with locking hole for lock pin that the utility model provides;
Fig. 5 is the A-A view of lock pin shown in Figure 4 and locking hole;
Fig. 6 provides the fundamental diagram of wind wheel locking device for the utility model;
Fig. 7 provides the structural representation of a kind of embodiment of land for the utility model.
Embodiment
The core of the utility model provides a kind of wind wheel locking device that is used for blower fan, and this locking device can make lock pin and the effective centering of locking hole, significantly improves the locking intensity of blower fan, improves the reliability of wind wheel locking, prolongs the working life of wind wheel locking device.Another core of the utility model provides a kind of blower fan that comprises above-mentioned wind wheel locking device.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is done further to specify below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 3 and Fig. 4, Fig. 3 provides the structural representation of a kind of embodiment of wind wheel locking device for the utility model; The fundamental diagram that Fig. 4 cooperates with locking hole for lock pin that the utility model provides; Fig. 5 is the A-A view of lock pin shown in Figure 4 and locking hole.
The wind wheel locking device that the utility model provided is used for the wind wheel of locking blower fan.This wind wheel locking device comprises lock body 21, lock pin 22 and locking plate 23, and wherein, lock body 21 is installed on the frame of blower fan, and lock pin 22 is located in the inner chamber of lock body 21, and locking plate 23 is fixedly connected with the wind wheel of blower fan.Different with existing technology is, the longitudinal center line O4 of lock pin 22 is parallel with the longitudinal center line O2 of lock body 21, and having predetermined distance between the two is e; Lock body 21 can rotate around the center line O2 of lock body 21 with lock pin 22 synchronously.
Like Fig. 3 and shown in Figure 4, the center line of the center line O2 of the center line O1 of wind wheel, lock body 21, locking hole 231 is O3 among the figure, the center line O4 of lock pin 22; Distance between the center line O4 of wind wheel center line O1 and lock pin 22 is A1; Distance between wind wheel center line O1 and the locking hole 231 center line O3 is A, and the distance between the center line O2 of wind wheel center line O1 and lock body 21 is A0, and the predetermined distance between the center line O2 of lock body 21 and the center line O4 of lock pin 22 is e; Distance between the center line O4 of lock pin 22 and the center line O3 of locking hole 231 is b; Along with the rotation of lock body 21, the b value can change, finally maybe vanishing.
Please refer to Fig. 6, Fig. 6 provides the fundamental diagram of wind wheel locking device for the utility model.
M1 is the rotating center of wind wheel among Fig. 6, and N1 is the movement locus of locking hole 231 centers when rotating with wind wheel; M2 is the rotating center of lock body 21; M3 is the center of lock pin 22, the movement locus when N3 is a lock pin 22 with lock body 21 rotations.In the process that the wind wheel locking device is installed; As long as operator's rotational lock 21 in the mounting hole of frame; Lock body 21 will be made circular movement around its center M2, and lock pin 22 center of circle M3 that be installed in the lock body 21 this moment also make circular movement around lock body 21 center M2, and its moving radius is e.
When lock body 21 when its center rotates a circle, locking plate 23 also changes with the centre distance A1 of lock pin 22 thereupon, its constant interval is that (AO-e) → AO → (AO+e) → AO → (AO-e), the adjustable extent of centre distance is AO ± e.Thereby can play the purpose of regulating lock pin 22 and the centre distance of locking plate 23, make operating center distance meet the requirement of theoretical center distance, guarantee lock pin 22 and locking hole 231 can be effectively, accurate centering.Because lock pin 22 has eccentric structure with lock body 21; The longitudinal center line O4 of lock pin 22 can be around the center line O2 of lock body 21 rotation; Distance between the center of the center of lock pin 22 and locking hole 231 changes with rotation, adjusts the centre distance of lock pin 22 and locking hole 231 with this.
Therefore, even the wind wheel locking device has error in production and installation process, also can adjust with lock pin 22 through the lock body 21 of rotation; Make the centre distance of lock pin 22 and locking hole 231 can adjust to minimum, even can adjust to that both are concentric, thereby significantly improve the concentricity of lock pin 22 and locking hole 231; Improve effective area of contact of lock pin 22 and locking hole 231; Reduce the local contact stress of lock pin 22, improve the reliability of wind wheel locking device, prolong its working life.
Simultaneously; Because lock pin 22 improves with the concentricity of locking hole 231, can effectively reduce the gap of 231 of lock pin 22 and locking holes, under wind; The amplitude that wind wheel rocks back and forth can significantly reduce; Thereby improve the reliability of wind wheel, prolong the working life of wind wheel, reduce unit and attendant's potential safety hazard.
A kind of preferred embodiment in, predetermined distance can be more than or equal to the alignment error and the foozle summation of wind wheel locking device.When lock pin 22 squinted with the center generation of locking hole 231, during rotation lock body 21, the center line O4 of lock pin 22 did the circumference operation around the center line of lock body 21, and the center of its movement locus and locking hole 231 has intersection point with the rotating locus of wind wheel.As shown in Figure 6; The intersection point of the central motion track N1 of locking hole 231 and the movement locus N3 of lock pin 22 is the point at lock pin 22 and locking hole 231 centers; As long as lock body 21 is rotated to the relevant position, lock pin 22 can be concentric with locking hole 231, and this moment, lock pin 22 can insert in the locking hole 231 fully; Both can in full force and effectly contact, and avoid local contact stress excessive.Simultaneously, can also reduce the gap between lock pin 22 and the locking plate 23, wind wheel can be pinned fully, avoid wind wheel to rock back and forth, further improve the reliability of wind wheel locking device, prolong the working life of wind wheel.
In concrete design process, design, manufacturing and the installation precision of the component that the value of e is relevant with the wind wheel locking device are relevant.According to Large-scale Wind Turbines the design of related components and the requirement and the practical experience of accuracy of manufacturing are learnt, when the size of e value is got 1.5mm～3.5mm general just can satisfy design and installation requirement, have rectifying effect preferably.
In a kind of concrete mode of execution; Lock pin 22 comprises round platform portion 221 that is located at insertion end and the main part 222 of being located at round platform portion rear end; The sectional area of insertion end is less than the area of locking hole 231, and the long-pending sectional area with main part of the tail end section of frustum portion is equal to the area of locking hole 231.Bump as shown in Figure 4, that round platform portion 221 possibly exist in the time of can reducing lock pin 22 insertion locking holes 231 improves and inserts accuracy rate.Obviously, as herein described equaling can not be interpreted as numercal equally fully, and the tolerance that mechanical field allows, error etc. should not influence the protection domain of the utility model.
Please refer to Fig. 7, Fig. 7 is the structural representation of a kind of embodiment of land that the utility model provides.
In further mode of execution, the end of lock body 21 can be provided with land 211, and this land 211 evenly is provided with some attachment holes 212 along its circumference, and the link that connects lock body 21 and frame penetrates attachment hole 212.According to lock pin 22 centering needs with locking hole 231, rotation lock body 21, the dish that is rotatably connected simultaneously when lock pin 22 arrives desirable centering position, stops the rotation, at this moment with frame on the corresponding attachment hole 212 of link position be current available attachment hole.Circumference at land 211 evenly is provided with some attachment holes 212, can satisfy the connection needs of lock body 21, and the centering that makes lock pin 22 and locking hole 231 is accurate and effective more.
Particularly, connected element can be bolt, spring pin etc., reliably is basic demand to be easy to connection and intensity.Simultaneously, attachment hole 212 also can be the slotted hole of extending circumferentially, and the major axis of this slotted hole is along the extending circumferentially of land, and such attachment hole all can satisfy the requirement of the utility model, all should be in the protection domain of the utility model.
Except above-mentioned wind wheel locking device; The utility model also provides a kind of blower fan that comprises above-mentioned wind wheel locking device; This blower fan also comprises frame and wind wheel; The wind wheel locking device comprises lock body 21 and locking plate 23, and lock body 21 is located in the cavity of frame and can be rotated around himself center line, and has at least two with frame and be fixedly connected the position; Locking plate 23 is fixedly connected with wind wheel.The structure of other each several parts of blower fan please refer to existing technology, and this paper repeats no more.
More than blower fan and wind wheel locking device thereof that the utility model provided have been carried out detailed introduction.Used concrete example among this paper the principle and the mode of execution of the utility model are set forth, above embodiment's explanation just is used to help to understand the method and the core concept thereof of the utility model.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (6)
1. wind wheel locking device that is used for blower fan; Comprise lock body and the locking plate that is fixedly connected with the wind wheel of said blower fan on the frame that is installed on said blower fan; Be provided with lock pin in the inner chamber of said lock body; Said locking plate is provided with the locking hole that cooperates with said lock pin, it is characterized in that, the longitudinal center line of said lock body and the longitudinal center line of said lock pin are parallel to each other and have predetermined distance; Said lock body and said lock pin can rotate around the center line of said lock body synchronously, and said lock body has at least two with said frame and is fixedly connected the position.
2. the wind wheel locking device that is used for blower fan according to claim 1 is characterized in that, said predetermined distance is more than or equal to the alignment error of respectively forming component and the foozle summation of said wind wheel locking device.
3. the wind wheel locking device that is used for blower fan according to claim 1 is characterized in that said predetermined distance is greater than 1.5mm, less than 3.5mm.
4. according to each described wind wheel locking device that is used for blower fan of claim 1 to 3; It is characterized in that; Said lock pin comprises the round platform portion that is located at insertion end and the main part of being located at said round platform portion rear end; The sectional area of said insertion end is less than the area of said locking hole, and the long-pending sectional area with said main part of tail end section of said frustum portion is equal to the area of said locking hole.
5. according to each described wind wheel locking device that is used for blower fan of claim 1 to 3; It is characterized in that; The end of said lock body is provided with land, and this land circumferentially evenly is provided with some attachment holes along it, and the link that connects said lock body and said frame penetrates said attachment hole.
6. a blower fan comprises frame and wind wheel, it is characterized in that, also comprises like each described wind wheel locking device of claim 1 to 5; This wind wheel locking device comprises lock body and locking plate; Said lock body is located in the cavity of said frame and can be around himself center line rotation, and has at least two with said frame and be fixedly connected the position; Said locking plate is fixedly connected with said wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202006381U CN202117860U (en) | 2011-06-14 | 2011-06-14 | Fan and wind wheel locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202006381U CN202117860U (en) | 2011-06-14 | 2011-06-14 | Fan and wind wheel locking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117860U true CN202117860U (en) | 2012-01-18 |
Family
ID=45458932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202006381U Expired - Lifetime CN202117860U (en) | 2011-06-14 | 2011-06-14 | Fan and wind wheel locking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117860U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251936A (en) * | 2011-06-14 | 2011-11-23 | 浙江运达风电股份有限公司 | Fan and wind wheel locking device thereof |
| CN106762397A (en) * | 2016-12-26 | 2017-05-31 | 江苏金风科技有限公司 | Wind power generating set and its impeller locking device |
| US11434879B2 (en) * | 2018-08-31 | 2022-09-06 | LiftWerx Holdings Inc. | Rotor lock for wind turbine |
-
2011
- 2011-06-14 CN CN2011202006381U patent/CN202117860U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251936A (en) * | 2011-06-14 | 2011-11-23 | 浙江运达风电股份有限公司 | Fan and wind wheel locking device thereof |
| CN102251936B (en) * | 2011-06-14 | 2013-08-28 | 浙江运达风电股份有限公司 | Fan and wind wheel locking device thereof |
| CN106762397A (en) * | 2016-12-26 | 2017-05-31 | 江苏金风科技有限公司 | Wind power generating set and its impeller locking device |
| CN106762397B (en) * | 2016-12-26 | 2019-06-04 | 江苏金风科技有限公司 | Wind power generating set and its impeller locking device |
| US11434879B2 (en) * | 2018-08-31 | 2022-09-06 | LiftWerx Holdings Inc. | Rotor lock for wind turbine |
| US20220349388A1 (en) * | 2018-08-31 | 2022-11-03 | LiftWerx Holdings Inc. | Rotor lock for wind turbine |
| US11661924B2 (en) * | 2018-08-31 | 2023-05-30 | LiftWerx Holdings Inc. | Rotor lock for wind turbine |
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