CN207513746U - A kind of pivoted arm for variable-pitch sliding ring - Google Patents
A kind of pivoted arm for variable-pitch sliding ring Download PDFInfo
- Publication number
- CN207513746U CN207513746U CN201721463279.2U CN201721463279U CN207513746U CN 207513746 U CN207513746 U CN 207513746U CN 201721463279 U CN201721463279 U CN 201721463279U CN 207513746 U CN207513746 U CN 207513746U
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- China
- Prior art keywords
- rotary arm
- arm rod
- variable
- fixed block
- sliding ring
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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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Abstract
The utility model discloses a kind of pivoted arms for variable-pitch sliding ring, and including rotary arm rod, rotary arm rod fixed block, lifting lug and flake bearing, the rotary arm rod fixed block holds variable pitch cabinet stent tightly by fastening screw；The rotary arm rod end is inserted into the flake bearing, and the rotary arm rod coordinates with the flake bearing clearance, being capable of telescopic moving；The flake bearing is mounted on the lifting lug, and the lifting lug is fixed on slip-ring rotor.The utility model has the advantage of：The rotary arm rod being fixed on variable pitch cabinet stent is shorter, frangibility is not allowed, rotary arm rod drives slip-ring rotor to rotate by the flake bearing on lifting lug, flake bearing being capable of sub- aligning, coordinate in addition pivoted arm is done with flake bearing clearance, can telescopic moving, these characteristics ensure pivoted arm can overcome the damage that the eccentric motion of variable-pitch sliding ring is brought in operation.The service life of pivoted arm is ensure that, so as to ensure that the reliability service of variable-pitch sliding ring.
Description
Technical field
The utility model is related to the connection structure fields of variable-pitch sliding ring, more particularly to a kind of pivoted arm for variable-pitch sliding ring.
Background technology
Substantially there are three types of mounting means for the variable-pitch sliding ring of wind turbine electric power variable pitch：
First way is mounted in inside engine rooms of wind power generators, and the rotor portion for the variable-pitch sliding ring installed in this way is direct
It is connect with gearbox, stationary part is fixedly mounted, and variable-pitch sliding ring rotor is rotated with gearbox, and stationary part is fixed, this
Mode is used for most of wind turbines；
The second way is that variable-pitch sliding ring is mounted on hub interior, and rotor portion connect with gearbox, maintains static, stator
Part is connect with wheel hub, is rotated with wheel hub；
The third mode is that variable-pitch sliding ring is mounted on hub interior, and stationary part connect with gearbox, maintains static, rotor
Part is connect with wheel hub, is rotated with wheel hub, and the variable-pitch sliding ring that the variable-pitch sliding ring of this design is installed than the second way is in size
On naturally with regard to needing to grow a part.
The pivoted arm of variable-pitch sliding ring traditional at present is all to protrude horizontally up a fixed link from gearbox end face, in fixed link
Ending vertical direction is installed a cross bar and is rotated with slip-ring rotor part connect band turn, due to the original of slip ring own dimensions
Cause, the fixation pole length stretched out from gearbox terminal horizontal is substantially suitable with slip ring length, and the size of slip ring can not be compressed,
Long, this results in the length of fixed link also long, while variable-pitch sliding ring eccentric vibrating again when rotated, causes horizontal solid
Thick stick is determined for a long time in vibrating state, for a long time, horizontal fixed link will be caused to be broken due to metal fatigue, so as to make variable pitch
System jam.
Therefore, it is necessary to solve the above problems to invent a kind of pivoted arm for variable-pitch sliding ring.
Utility model content
The purpose of this utility model is to provide a kind of pivoted arm for variable-pitch sliding ring, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical solution：A kind of pivoted arm for variable-pitch sliding ring, including
Rotary arm rod, rotary arm rod fixed block, lifting lug and flake bearing, the rotary arm rod fixed block hold variable pitch cabinet branch tightly by fastening screw
Frame；The rotary arm rod end is inserted into the flake bearing, and the rotary arm rod coordinates with the flake bearing clearance, can stretch
It is mobile；The flake bearing is mounted on the lifting lug, and the lifting lug is fixed on slip-ring rotor.
Further, the variable pitch cabinet stent is triangle.
Further, the rotary arm rod fixed block includes upper rotary arm rod fixed block and lower rotary arm rod fixed block, described above to turn
Run through on armed lever fixed block and lower rotary arm rod fixed block and be equipped with fastening screw hole.
Further, the upper rotary arm rod fixed block and lower rotary arm rod fixed block hold variable pitch cabinet branch tightly by fastening screw
Frame.
Further, described rotary arm rod one end is an integral structure with the setting of upper rotary arm rod fixed block, and the rotary arm rod is another
One end is inserted into flake bearing.
Further, run through on the lifting lug and be equipped with through-hole, the through-hole diameter is more than and flake bearing bore diameter.
The technique effect and advantage of the utility model：By the way that rotary arm rod one end and the setting of upper rotary arm rod fixed block are integrated
Formula structure, and the rotary arm rod other end is inserted into flake bearing, can shorten length of the rotary arm rod on variable pitch cabinet stent, significantly
Reduce the rate that fractures of rotary arm rod；Slip-ring rotor is driven to rotate by the flake bearing on lifting lug, while utilize flake bearing tune
The nodal axisn heart along with rotary arm rod and flake bearing clearance coordinate, enables rotary arm rod telescopic moving, rotary arm rod can be avoided to run
The damage that the eccentric vibrating of middle variable-pitch sliding ring is brought ensure that the service life of rotary arm rod, so as to ensure that variable-pitch sliding ring can
By operation；By setting rotary arm rod fixed block up and down, fastening screw can be utilized to hold variable pitch cabinet stent tightly, it is ensured that pitch-controlled system
Stable operation.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is A portions enlarged drawing in Fig. 1 of the utility model；
Fig. 3 is B portions enlarged drawing in Fig. 1 of the utility model；
In figure：1 variable-pitch sliding ring stator, 2 variable-pitch sliding ring rotors, 3 gearboxes, 4 lifting lugs, 41 through-holes, 5 flake bearings, 6 pivoted arms
Bar, 7 rotary arm rod fixed blocks, rotary arm rod fixed block, 72 times rotary arm rod fixed blocks, 8 variable pitch cabinet stents, 9 fastening screw holes on 71.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
The utility model provides a kind of pivoted arm for variable-pitch sliding ring as shown in Figs. 1-3, including rotary arm rod 6, pivoted arm
Bar fixed block 7, lifting lug 4 and flake bearing 5, rotary arm rod fixed block 7 hold variable pitch cabinet stent 8 tightly by fastening screw；6 end of rotary arm rod
End is inserted into flake bearing 5, rotary arm rod 6 and 5 clearance fit of flake bearing, being capable of telescopic moving；Flake bearing 5 is mounted on lifting lug
On 4, lifting lug 4 is fixed on variable-pitch sliding ring rotor.
Preferably, the connection mode that the flake bearing 5 is mounted on the lifting lug 4 is is welded to connect.
On the lifting lug 4 run through be equipped with through-hole 41,41 diameter of through-hole be more than with 5 internal diameter of flake bearing, convenient for pivoted arm
6 telescopic moving of bar, the rotary arm rod fixed block 7 includes upper rotary arm rod fixed block 71 and lower rotary arm rod fixed block 72, described above to turn
Run through on armed lever fixed block 71 and lower rotary arm rod fixed block 72 and be equipped with fastening screw hole 9, it can be with fastening screw by upper rotary arm rod
Fixed block 71 and the locking locking of lower rotary arm rod fixed block 72, the upper rotary arm rod fixed block 71 and lower rotary arm rod fixed block 72 pass through
Fastening screw holds variable pitch cabinet stent 8 tightly, and rotary arm rod 6 can be avoided to misplace in 2 rotation process of variable-pitch sliding ring rotor and lead to variable pitch
System jam, described 6 one end of rotary arm rod are an integral structure with the setting of upper rotary arm rod fixed block 71, and the rotary arm rod 6 is another
One end is inserted into flake bearing 5, greatly strengthens the stability that rotary arm rod 6 is connect with variable pitch cabinet stent 8, the rotary arm rod 6
With 5 clearance fit of flake bearing, can telescopic moving, the eccentric vibrating of variable-pitch sliding ring when rotated can be avoided, lead to rotary arm rod 6
It is broken due to metal fatigue.
As a kind of embodiment, the pivoted arm for variable-pitch sliding ring, further includes variable-pitch sliding ring stator 1 and variable pitch is slided
Rotor 2, described 1 one end of variable-pitch sliding ring stator is provided with variable-pitch sliding ring rotor 2 and opposite side is provided with gearbox 3, described
2 side of variable-pitch sliding ring rotor is fixed with lifting lug 4, and 2 side of variable-pitch sliding ring rotor is provided with variable pitch cabinet stent 8.
During use, variable-pitch sliding ring rotor 2 is driven to rotate by the flake bearing 5 on lifting lug 4, while utilize fish
Axis oculi holds 5 axle centers, along with rotary arm rod 6 and 5 clearance fit of flake bearing, enables 6 telescopic moving of rotary arm rod, can avoid
The damage that the eccentric vibrating of the variable-pitch sliding ring in operation of rotary arm rod 6 is brought, ensure that the service life of rotary arm rod 6, so as to ensure
The reliability service of variable-pitch sliding ring.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify to the technical solution recorded in foregoing embodiments or to which part technical characteristic
Equivalent replacement is carried out, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of pivoted arm for variable-pitch sliding ring, it is characterised in that：Including rotary arm rod (6), rotary arm rod fixed block (7), lifting lug (4)
With flake bearing (5), the rotary arm rod fixed block (7) holds variable pitch cabinet stent (8) tightly by fastening screw；The rotary arm rod (6)
End is inserted into the flake bearing (5), and the rotary arm rod (6) and flake bearing (5) clearance fit, can stretch shifting
It is dynamic；The flake bearing (5) is welded on the lifting lug (4), and the lifting lug (4) is fixed on slip-ring rotor.
2. a kind of pivoted arm for variable-pitch sliding ring according to claim 1, it is characterised in that：The variable pitch cabinet stent (8)
For triangle.
3. a kind of pivoted arm for variable-pitch sliding ring according to claim 1, it is characterised in that：The rotary arm rod fixed block
(7) including upper rotary arm rod fixed block (71) and lower rotary arm rod fixed block (72), the upper rotary arm rod fixed block (71) and lower pivoted arm
Run through on bar fixed block (72) and be equipped with fastening screw hole (9).
4. a kind of pivoted arm for variable-pitch sliding ring according to claim 3, it is characterised in that：The upper rotary arm rod fixed block
(71) and lower rotary arm rod fixed block (72) holds variable pitch cabinet stent (8) tightly by fastening screw.
5. a kind of pivoted arm for variable-pitch sliding ring according to claim 1 or 3, it is characterised in that：The rotary arm rod (6) one
End is an integral structure with the setting of upper rotary arm rod fixed block (71), and rotary arm rod (6) other end is inserted into flake bearing (5)
In.
6. a kind of pivoted arm for variable-pitch sliding ring according to claim 1, it is characterised in that：Run through on the lifting lug (4)
Equipped with through-hole (41), through-hole (41) diameter is equal with flake bearing (5) internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463279.2U CN207513746U (en) | 2017-11-06 | 2017-11-06 | A kind of pivoted arm for variable-pitch sliding ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463279.2U CN207513746U (en) | 2017-11-06 | 2017-11-06 | A kind of pivoted arm for variable-pitch sliding ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513746U true CN207513746U (en) | 2018-06-19 |
Family
ID=62536848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721463279.2U Active CN207513746U (en) | 2017-11-06 | 2017-11-06 | A kind of pivoted arm for variable-pitch sliding ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185056A (en) * | 2018-10-30 | 2019-01-11 | 新疆金风科技股份有限公司 | Pitch drive, pitch drive system and wind power generating set |
-
2017
- 2017-11-06 CN CN201721463279.2U patent/CN207513746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109185056A (en) * | 2018-10-30 | 2019-01-11 | 新疆金风科技股份有限公司 | Pitch drive, pitch drive system and wind power generating set |
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| GR01 | Patent grant |