CN209053735U - A kind of pitch axis and its locking mechanism for blower - Google Patents
A kind of pitch axis and its locking mechanism for blower Download PDFInfo
- Publication number
- CN209053735U CN209053735U CN201821317663.6U CN201821317663U CN209053735U CN 209053735 U CN209053735 U CN 209053735U CN 201821317663 U CN201821317663 U CN 201821317663U CN 209053735 U CN209053735 U CN 209053735U
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- China
- Prior art keywords
- pitch axis
- hole
- locking mechanism
- axis
- blower
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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 pitch axis and its locking mechanism for blower, including pitch axis and locking mechanism, the locking mechanism includes flanged plate, elastic tension circle and pressing plate, the section of flanged plate shape in equilateral triangle and its middle part be equipped with for the first shaft hole with variable pitch axis connection, the flanged plate is sheathed in the pitch axis by the first shaft hole, the first connecting hole is equipped at three angles of the flanged plate, the elastic tension snare is set in the pitch axis and is connected between the pitch axis and the first shaft hole of flanged plate, the pressing plate is equipped with the second axis hole and the second connecting hole around the setting of the second axis hole, the pressing plate is set in the pitch axis by second shaft hole sleeve and is connect by second connecting hole with the flanged plate, the aperture of second axis hole is less than the aperture of the first shaft hole.Pitch axis and its locking mechanism provided by the utility model for blower, it is ensured that the stability that pitch axis is connect with variable pitch tripod.
Description
Technical field
The utility model relates to variable pitch type blower fan structure fields, and in particular to a kind of pitch axis and its locking for blower
Structure.
Background technique
In the prior art it is usually that the end face of pitch axis and the connection of variable pitch tripod are realized by the bolt of 8 m12, becomes
The blade there are three variable oar is connected on paddle tripod, under fan operation and variable pitch state, three blades are to variable pitch tripod
Reaction force it is different, cause the presence of opposite sliding force between variable pitch tripod and pitch axis, under long-term variable pitch operating status, make
It is loosened at variable pitch tripod and the abrasion of variable pitch hollow shaft, front end fixing bolt crosses torque fracture, and pitch axis abjection causes to become in turn
Rowlock is toppled over, and the bending of variable pitch bar or is fractureed.
Utility model content
The utility model provides a kind of pitch axis and its locking mechanism for blower, it is ensured that pitch axis and variable pitch three
The stability of corner bracket connection, the risk for preventing pitch axis from deviating from.
To achieve the above object, the utility model provides a kind of pitch axis and its locking mechanism for blower, including
Pitch axis and locking mechanism, the locking mechanism include flanged plate, elastic tension circle and pressing plate, the section of the flanged plate in etc.
Side triangle and its middle part be equipped with for the first shaft hole with variable pitch axis connection, the flanged plate passes through the first shaft hole set
In the pitch axis, the first connecting hole is equipped at three angles of the flanged plate, the elastic tension snare is set to described
It in pitch axis and is connected between the pitch axis and the first shaft hole of flanged plate, the pressing plate is equipped with the second axis hole and surround
Second connecting hole of the second axis hole setting, the pressing plate are set to by second shaft hole sleeve in the pitch axis and by described
Second connecting hole is connect with the flanged plate, and the aperture of second axis hole is less than the aperture of the first shaft hole.
Preferably, the section of the first shaft hole is tapered, and the outer surface of the elastic tension circle is tapered simultaneously
It can cooperate with the inner surface of the first shaft hole of the flanged plate.
Preferably, the end face of the pressing plate is abutted with the end face of the big nose end of the first shaft hole.
Preferably, the elastic tension circle is equipped with opening.
Preferably, pressing plate is in circular ring shape plate, and second axis hole is set at the axle center of the pressing plate.
Preferably, the quantity of second connecting hole is 6,6 second connecting holes with second axis hole
It is arranged for round rounded array.
Preferably, the pressing plate is connect with the pitch axis clearance fit.
Preferably, the first bolt for connection is equipped in second connecting hole.
Preferably, first bolt is super bolt.
Preferably, the flanged plate is equipped with third connecting hole corresponding with second connecting hole, described
It is bolted between second connecting hole and third connecting hole by second.
A kind of pitch axis and its locking mechanism for blower provided by above-mentioned technical proposal, by increasing in pitch axis
If locking mechanism, thus can guarantee the stability that pitch axis is connect with variable pitch tripod, the risk for preventing pitch axis from deviating from.Specifically
The flanged plate on ground, setting section shape in equilateral triangle reinforces the connection of pitch axis and variable pitch tripod, makes three of flanged plate
Be aligned in three with variable pitch tripod respectively, then by three bolts by first connecting hole realize flanged plate with
Variable pitch tripod is fixedly connected, in addition, the pitch axis is arranged in the first shaft hole of the flanged plate and by elasticity
Collar set realization pitch axis is locked with flanged plate junction, further, withstands elastic tension circle by the way that pressing plate is arranged
It covers, to limit the freedom degree of elastic tension snare axial direction, and then prevents elastic tension snare from deviating from from first shaft hole, such as
This, thus can guarantee the stability that pitch axis is connect with variable pitch tripod, the risk for preventing pitch axis from deviating from.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural exploded view of the utility model.
Wherein: 1, breakaway nut；2, elastic tension circle；3, flanged plate；4, pitch axis；5, pressing plate.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
It as shown in Figs. 1-2, is a kind of pitch axis 4 and its locking mechanism for blower provided by the present embodiment, including
Pitch axis 4 and locking mechanism, the locking mechanism include flanged plate 3, elastic tension circle 2 and pressing plate 5, and the flanged plate 3 is cut
Face shape in equilateral triangle and its middle part are equipped with first shaft hole for connect with pitch axis 4, and the flanged plate 3 passes through described the
One shaft hole sleeve is set in the pitch axis 4, and the first connecting hole, the elastic tension circle 2 are equipped at three angles of the flanged plate 3
It is sheathed in the pitch axis 4 and is connected between the pitch axis 4 and the first shaft hole of flanged plate 3, set on the pressing plate 5
There are the second axis hole and the second connecting hole around the setting of the second axis hole, the pressing plate 5 is set to described by second shaft hole sleeve
It is connect in pitch axis 4 and by second connecting hole with the flanged plate 3, the aperture of second axis hole is less than described first
The aperture of axis hole, in the present embodiment, the pitch axis 4 is hollow pitch axis 4.
Specifically, by adding locking mechanism in pitch axis 4, to can guarantee that pitch axis 4 is connect with variable pitch tripod
Stability, prevent pitch axis 4 deviate from risk.Specifically, the flanged plate 3 that section shape in equilateral triangle is arranged reinforces variable pitch
The connection of axis 4 and variable pitch tripod makes three of flanged plate 3 to be aligned in three with variable pitch tripod respectively, then passes through
Three bolts realize being fixedly connected for flanged plate 3 and variable pitch tripod by first connecting hole, in addition, the pitch axis 4
It is arranged in the first shaft hole of the flanged plate 3 and realizes pitch axis 4 and 3 junction of flanged plate by 2 sets of elastic tension circle
It is locked, further, withstands 2 sets of elastic tension circle, by the way that pressing plate 5 is arranged to limit 2 sets of axial directions of elastic tension circle
Freedom degree, and then prevent 2 sets of elastic tension circle to deviate from from first shaft hole, in this way, to can guarantee pitch axis 4 and variable pitch three
The stability of corner bracket connection, the risk for preventing pitch axis 4 from deviating from.Wherein, the aperture of second axis hole is less than the first axle
The aperture in hole thereby may be ensured that the end face of pressing plate 5 is abutted with 2 sets of elastic tension circle of end face, and then prevent elastic tension circle 2
Set is deviate from from first shaft hole.
Further, the section of the first shaft hole is tapered, and the outer surface of the elastic tension circle 2 is tapered and can be with
The inner surface of the first shaft hole of the flanged plate 3 cooperates.In this way, realizing being locked for pitch axis 4 and 3 junction of flanged plate
When, 2 sets of the tapered elastic tension circle in outer surface are pressed into the tapered first shaft hole in section by external force, so that becoming
Locking effect between paddle shaft 4 and flanged plate 3 is good, while facilitating installation.Further, the end face of the pressing plate 5 with it is described
The end face of the big nose end of first shaft hole abuts, to effectively prevent the abjection of elastic tension circle 2.In addition, to guarantee elasticity
There is elastic force outward to realize the locking to flanged plate 3 for collar 2, be equipped with opening in elastic tension circle 2.
In the present embodiment, pressing plate 5 is in circular ring shape plate, and second axis hole is set at the axle center of the pressing plate 5；It is described
It is round rounded array arrangement that the quantity of second connecting hole, which is 6,6 second connecting holes with second axis hole, thus
Guarantee the stability that pressing plate 5 is connect with flanged plate 3；The pressing plate 5 connect with 4 clearance fit of pitch axis, installation is facilitated to press
Plate 5；The first bolt for connection is equipped in second connecting hole, it is preferable that first bolt is super bolt, specifically
Ground, three the first connection holes of the flanged plate 3 are set there are three breakaway nut 1, pass through matching for super bolt and breakaway nut 1
The connection that flanged plate 3 and variable pitch tripod are realized in connection is closed, to reinforce the stability that flanged plate 3 is connect with variable pitch tripod；
The flanged plate 3 is equipped with third connecting hole corresponding with second connecting hole, and second connecting hole is connect with third
It is bolted between hole by second.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and should not be understood as
Indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of pitch axis and its locking mechanism for blower, which is characterized in that including pitch axis and locking mechanism, the lock
Locking structure includes flanged plate, elastic tension circle and pressing plate, the section of flanged plate shape in equilateral triangle and its middle part is equipped with
For the first shaft hole with variable pitch axis connection, the flanged plate is sheathed in the pitch axis by the first shaft hole, described
The first connecting hole is equipped at three angles of flanged plate, the elastic tension snare is set in the pitch axis and is connected to the change
Between paddle shaft and the first shaft hole of flanged plate, the pressing plate is equipped with the second axis hole and the second connection around the setting of the second axis hole
Hole, the pressing plate are set to by second shaft hole sleeve in the pitch axis and by second connecting hole and the flanged plate
Connection, the aperture of second axis hole are less than the aperture of the first shaft hole.
2. the pitch axis and its locking mechanism according to claim 1 for blower, which is characterized in that the first shaft hole
Section it is tapered, the outer surface of the elastic tension circle is tapered and can match with the inner surface of the first shaft hole of the flanged plate
It closes.
3. the pitch axis and its locking mechanism according to claim 2 for blower, which is characterized in that the end of the pressing plate
Face is abutted with the end face of the big nose end of the first shaft hole.
4. the pitch axis and its locking mechanism according to claim 2 for blower, which is characterized in that the elastic tension
Circle is equipped with opening.
5. the pitch axis and its locking mechanism according to claim 1 for blower, which is characterized in that pressing plate is in circular ring shape
Plate, second axis hole are set at the axle center of the pressing plate.
6. the pitch axis and its locking mechanism according to claim 5 for blower, which is characterized in that second connection
It is round rounded array arrangement that the quantity in hole, which is 6,6 second connecting holes with second axis hole,.
7. the pitch axis and its locking mechanism according to claim 5 for blower, which is characterized in that the pressing plate and institute
State the connection of pitch axis clearance fit.
8. the pitch axis and its locking mechanism according to claim 1 for blower, which is characterized in that second connection
The first bolt for connection is equipped in hole.
9. the pitch axis and its locking mechanism according to claim 8 for blower, which is characterized in that first bolt
For super bolt.
10. the pitch axis and its locking mechanism according to claim 1 for blower, which is characterized in that the flanged plate
It is equipped with third connecting hole corresponding with second connecting hole, by the between second connecting hole and third connecting hole
Two are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317663.6U CN209053735U (en) | 2018-08-15 | 2018-08-15 | A kind of pitch axis and its locking mechanism for blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317663.6U CN209053735U (en) | 2018-08-15 | 2018-08-15 | A kind of pitch axis and its locking mechanism for blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209053735U true CN209053735U (en) | 2019-07-02 |
Family
ID=67047479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821317663.6U Active CN209053735U (en) | 2018-08-15 | 2018-08-15 | A kind of pitch axis and its locking mechanism for blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209053735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283029A (en) * | 2020-10-26 | 2021-01-29 | 华能国际电力开发公司吉林白城风电分公司 | Locking flange plate applied to variable propeller shaft of wind motor |
-
2018
- 2018-08-15 CN CN201821317663.6U patent/CN209053735U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283029A (en) * | 2020-10-26 | 2021-01-29 | 华能国际电力开发公司吉林白城风电分公司 | Locking flange plate applied to variable propeller shaft of wind motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210303 Address after: 137000 south of Baiqi highway, No.4, malibutoutun section, Zhenlai Town, Zhenlai County, Baicheng City, Jilin Province Patentee after: Zhenlai wind power plant of Huaneng Jilin Power Generation Co.,Ltd. Address before: 137000 starting area of Taobei Economic Development Zone, Baicheng City, Jilin Province (wind power supporting Park) Patentee before: HUANENG POWER INTERNATIONAL, INC. JILIN BAICHENG WIND ELECTRICITY BRANCH Co. |
|
| TR01 | Transfer of patent right |