CN209430346U - A kind of wind generator set blade locking device - Google Patents
A kind of wind generator set blade locking device Download PDFInfo
- Publication number
- CN209430346U CN209430346U CN201822245078.6U CN201822245078U CN209430346U CN 209430346 U CN209430346 U CN 209430346U CN 201822245078 U CN201822245078 U CN 201822245078U CN 209430346 U CN209430346 U CN 209430346U
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- lock
- alligator
- flange
- locking device
- diameter
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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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of wind generator set blade locking devices, including hub body and lock alligator；Web there are three being formed on hub body, it is provided with pitch variable bearings on the outside of one of web and has been outwardly formed flange, flange is located at the inside of the gear part on pitch variable bearings inner ring, intert connection on flange there are two mobilizable lock alligator, the position of two lock alligators and the position and tooth pitch of spacing and gear part mutually cooperate；For the utility model using two lock alligators while locking-blade, structure is simply small and exquisite, and convenient for plug, deformation is small, and locking force is big, while being also not easy to fall, easy to operate.
Description
Technical field
The utility model relates to a kind of wind generator set blade locking devices.
Background technique
Under normal operation, the blade of wind power generating set drives and brakes by pitch motor and variable pitch speed reducer,
However, when wind wheel lifts, when the later period replaces blade, failure pitch motor etc. and periodic maintenance and maintenance, it is necessary to by wind
Impeller blade is locked, to prevent its rotation, to protect the safety of operator.
Existing locking device is inserted between variable pitch tooth using single isometrical straight pin from hub interior, to prevent blade
Rotation；But with the continuous increase of unit capacity, the size and specification of blower are increasing, while wind load is also increasingly
Greatly, therefore to the strength and stiffness of blade locking device it requires also more and more harsh；Isometrical straight pin usually becomes because plasticity occurs
Shape is without being drawn out easily, and in order to meet the requirements, has to increase diameter, so that isometrical straight pin is very heavy, up for into one
Step is improved.
Utility model content
In view of the above-mentioned state of the art, the technical problem to be solved by the utility model is to provide a kind of structure letters
It is single small and exquisite, convenient for plug, deform small, the big wind generator set blade locking device of locking force.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of wind generator set blade locking
Device, including hub body and lock alligator；It is formed on hub body there are three web, is provided with change on the outside of one of web
Flange is held and be outwardly formed to paddle shaft, and flange is located at the inside of the gear part on pitch variable bearings inner ring, which is characterized in that described convex
Intert connection on edge there are two mobilizable lock alligator, one end of the lock alligator has been outwardly formed bumping post, the lock alligator
The other end has been outwardly formed variable diameter arc section, and the other end of the variable diameter arc section has been outwardly formed pin, the pin it is another
One end is formed with chamfering.
Preferably, the diameter of the bumping post is greater than the diameter of lock alligator.
Preferably, the diameter of the pin is less than the diameter of lock alligator.
Compared with the prior art, the advantages of the utility model are: the utility model is locked simultaneously using two lock alligators
Blade, structure is simply small and exquisite, and convenient for plug, deformation is small, and locking force is big.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is partial enlargement structure chart of the utility model at A；
Fig. 3 is the structure chart of the lock alligator of the utility model.
Specific embodiment
As shown in Figures 1 to 3, a kind of wind generator set blade locking device, including hub body 1 and lock alligator 4；Wheel hub
Web 5 there are three being formed in main body 1, the outside of one of web 5 is provided with pitch variable bearings 2 and has been outwardly formed flange 3, convex
Edge 3 is located at the inside of the gear part 21 on 2 inner ring of pitch variable bearings, interts mobilizable lock alligator 4 there are two connections on flange 3,
One end of lock alligator 4 has been outwardly formed bumping post 41, and the diameter of bumping post 41 is greater than the diameter of lock alligator 4, lock the other end of alligator 4 to
It is formed with variable diameter arc section 42 outside, the other end of variable diameter arc section 42 has been outwardly formed pin 43, and the diameter of pin 43 is less than lock
The diameter of alligator 4；The other end of pin 43 is formed with chamfering 44；The outer diameter and spacing of two pins 43 respectively with gear part 21
Space width and tooth top are away from mutual cooperation.
Blade: being fixed on the outside of pitch variable bearings 2 by working principle by fastener, before locking operation, first by blade tune
To straight down, the web 5 equipped with pitch variable bearings 2 in hub body 1 is in a horizontal position, and operator is by gravity
Two lock alligators 4 are inserted into straight down in corresponding two pin holes on flange 3, until being inserted into gear part 21 wherein
Two between cog, so that blade be locked；Bumping post 41 on lock alligator 4 is fitted on the inner side surface of flange 3, to prevent lock alligator
4 fall；The between cog of pitch variable bearings 2 is quickly inserted into the setting of chamfering 44 convenient for it；The setting of two lock alligators 4, so that blade
Locking device more secure and reliable, because during locking, the first stress of one of lock alligator 4, if plastic deformation is small, second
A lock alligator 4 is simultaneously not involved in work；If plastic deformation is slightly larger, second lock alligator 4 can also be concured with face,
So that it is guaranteed that excessive plastic deformation will not occur for lock alligator 4 and hub flange, convenient for locking the extraction of alligator；Flange 3 gives lock tooth
Pin 4 provides strength support, and the diameter of pin 43 is less than lock alligator 4, once deforming, pin 43 also can be from the pin on flange 3
It is extracted in hole.
Under normal operation, the blade of wind power generating set drives and brakes by pitch motor and variable pitch speed reducer,
However, when wind wheel lifts, when the later period replaces blade, failure pitch motor etc. and periodic maintenance and maintenance, it is necessary to by wind
Impeller blade is locked, to prevent its rotation, to protect the safety of operator；Existing locking device is using single isometrical
Straight pin is inserted between variable pitch tooth from hub interior, to prevent the rotation of blade；But with the continuous increase of unit capacity,
The size and specification of blower are increasing, while wind load is also increasing, therefore to the strength and stiffness of blade locking device
It is required that also more and more harsh；Isometrical straight pin usually because plastic deformation occurs without being drawn out easily, in order to meet the requirements, has to
Increase diameter, so that isometrical straight pin is very heavy；Locking-blade, structure are simple simultaneously using two lock alligators 4 for the utility model
Single small and exquisite, convenient for plug, deformation is small, and locking force is big, while being also not easy to fall, easy to operate.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of skill in the art that its according to
It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is replaced on an equal basis
It changes；And these are modified or replaceed, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (3)
1. a kind of wind generator set blade locking device, including hub body and lock alligator；There are three being formed on hub body
Web is provided with pitch variable bearings on the outside of one of web and has been outwardly formed flange, and flange is located on pitch variable bearings inner ring
Gear part inside, which is characterized in that intert connection on the flange there are two mobilizable lock alligator, the lock alligator
One end has been outwardly formed bumping post, and the other end of the lock alligator has been outwardly formed variable diameter arc section, the variable diameter arc section it is another
One end has been outwardly formed pin, and the other end of the pin is formed with chamfering.
2. a kind of wind generator set blade locking device according to claim 1, which is characterized in that the bumping post it is straight
Diameter is greater than the diameter of lock alligator.
3. a kind of wind generator set blade locking device according to claim 1, which is characterized in that the pin it is straight
Diameter is less than the diameter of lock alligator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245078.6U CN209430346U (en) | 2018-12-29 | 2018-12-29 | A kind of wind generator set blade locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822245078.6U CN209430346U (en) | 2018-12-29 | 2018-12-29 | A kind of wind generator set blade locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430346U true CN209430346U (en) | 2019-09-24 |
Family
ID=67974634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822245078.6U Active CN209430346U (en) | 2018-12-29 | 2018-12-29 | A kind of wind generator set blade locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566419A (en) * | 2019-09-26 | 2019-12-13 | 北京金风科创风电设备有限公司 | Blade locking device, hub, impeller and wind generating set |
-
2018
- 2018-12-29 CN CN201822245078.6U patent/CN209430346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566419A (en) * | 2019-09-26 | 2019-12-13 | 北京金风科创风电设备有限公司 | Blade locking device, hub, impeller and wind generating set |
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