CN206600238U - A kind of fan yaw brake - Google Patents
A kind of fan yaw brake Download PDFInfo
- Publication number
- CN206600238U CN206600238U CN201720284956.8U CN201720284956U CN206600238U CN 206600238 U CN206600238 U CN 206600238U CN 201720284956 U CN201720284956 U CN 201720284956U CN 206600238 U CN206600238 U CN 206600238U
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- CN
- China
- Prior art keywords
- brake
- damping spring
- holder
- piston
- block
- 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.)
- Expired - Fee Related
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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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- Braking Arrangements (AREA)
Abstract
The utility model discloses a kind of fan yaw brake, including brake cylinder, damping spring, fixed brake(-holder) block and the movable brake(-holder) block positioned opposite with fixed brake(-holder) block, the fixed brake(-holder) block is installed on the brake cylinder, piston is equiped with the brake cylinder, the movable brake(-holder) block is installed on the push rod of the piston, the damping spring is installed in the brake cylinder and provides axial thrust to the push rod, when blower fan runs well, locking is realized by the piston and the damping spring collective effect；When fan yaw is moved, only damping due to rotation is provided by the damping spring.The utility model has the advantages that simple in construction, cost is low, prevents that hydraulic pressure oil seepage, reduction yaw oscillation, service life are long.
Description
Technical field
The utility model is related to wind power plant, more particularly to a kind of fan yaw brake.
Background technology
Wind-power electricity generation is a kind of new energy of green non-pollution, is widely used in countries in the world.By for many years
Development, domestic wind-power market is mature on the whole, and wind power equipment demand quickly increases.
Off-course brake is the important component of Wind turbines brakes, and the quality of its braking ability directly decides
Can Wind turbines run well.The advantages of adjustable because pressure facilitates, hydraulic yaw brake is obtained in Wind turbines
Universal application.Fan yaw brake is to realize braking by the friction between friction plate and brake disc, when wind direction becomes
During change, the cabin on pylon top starts yawing rotation, now, and hydraulic braking disk is in half release conditions, is provided for cabin rotation
Stable damping force, prevents blower fan from occurring unstable phenomenon, it is ensured that cabin calms down rotation.At the end of driftage is to wind, hydraulic braking
Disk will be in total head state, it is ensured that the stability of cabin during wind-driven generator normal work, prevent cabin under high wind state with
Meaning is rotated, and causes, influence generating efficiency inaccurate to wind direction.
In fan yaw brake fluid system, the yaw with internal tooth is bolted to atop a tower, outer shroud with
Cabin seat is connected, and inner ring is connected with tower flanges.And there is certain gap between cabin and the floating bearing of tower connection, machine
After group operation a period of time, the gap can also increase accordingly.When cabin is during move to static braking, due to braking
The motion of cylinder is asynchronous to produce relative tilt with cabin laod unbalance, pivoting support bearing inner ring and outer ring, in inclined mistake
Cheng Zhong, brake plunger produces tangential force effect, and larger friction causes brake to be shaken between piston and cylinder body, heavy wear
Or the inner surface of plucking checking cylinder, it on the one hand can make it that the sealing between piston and cylinder barrel is destroyed, produce the phenomenon of oil leak, it is dirty
Hosted environment is contaminated, when checking cylinder oil leak is serious, brake will be in abnormal operating state, and fan operation risk increases
Plus；On the other hand can also it cause braking moment unstable, fan yaw vibration is strengthened.Now, it has to shut down and repaired, lead
Cause the decrease of power generation of wind field.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art there is provided a kind of simple in construction, cost
It is low, prevent hydraulic pressure oil seepage, reduction yaw oscillation, the fan yaw brake of service life length.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of fan yaw brake, including system
Dynamic oil cylinder, damping spring, fixed brake(-holder) block and the movable brake(-holder) block positioned opposite with fixed brake(-holder) block, the fixed brake(-holder) block
It is installed on the brake cylinder, piston is equiped with the brake cylinder, the movable brake(-holder) block is installed in the piston
On push rod, the damping spring is installed in the brake cylinder and provides axial thrust to the push rod, and blower fan runs well
When, locking is realized by the piston and the damping spring collective effect；When fan yaw is moved, only carried by the damping spring
For damping due to rotation.
It is used as the further improvement of above-mentioned technical proposal：
The damping spring is provided with two pieces, and two pieces damping spring is positioned opposite in the piston both sides.
The damping spring is provided with more than one piece, and more than one piece damping spring is arranged circumferentially along the piston.
It is provided with the brake cylinder along the axial arranged mounting groove of the piston, the damping spring is installed located at described
In groove, described damping spring one end is fixedly connected with the push rod, and the other end is fixedly connected with a spring pedestal, the mounting groove
It is interior to be provided with the bolt for being used for positioning the spring pedestal.
The bolt is provided with locking nut.
The damping spring is compression spring.
Compared with prior art, the utility model has the advantage of：Fan yaw brake knot disclosed in the utility model
Structure is simple, cost is low, and when cabin needs driftage, the damping of brake is only provided by damping spring, and piston is failure to actuate, this opportunity
Cabin is driven by yaw motor to rotate, while under the moment of friction effect of damping spring, being rotated for cabin and providing stable resistance
Buddhist nun, it is ensured that smoothly yaw maneuver, efficiently avoid high pressure liquid force feed and occurs oil leakage phenomenon in cabin braking procedure, also can
Effectively reduction yaw oscillation, extends brake service life；After fan yaw terminates to wind, piston action, and and damping spring
Combination braking is realized, plays a part of braking and locking, reliably keeps cabin angle constant.
Brief description of the drawings：
Fig. 1 is the structural representation of fan yaw brake of the present utility model.
Each label is represented in figure：
1st, bolt；2nd, locking nut；3rd, hydraulic pressure oilhole；4th, spring pedestal；5th, damping spring；6th, brake cylinder；7th, piston；
8th, push rod；9th, movable brake(-holder) block；10th, fixed brake(-holder) block.
Embodiment
The utility model is described in further details below with reference to Figure of description and specific embodiment.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
As shown in figure 1, the fan yaw brake of the present embodiment, including brake cylinder 6, damping spring 5, fixed brake(-holder) block
10 and the movable brake(-holder) block 9 positioned opposite with fixed brake(-holder) block 10, fixed brake(-holder) block 10 is installed on brake cylinder 6, braked
Piston 7 is equiped with oil cylinder 6, movable brake(-holder) block 9 is installed on the push rod 8 of piston 7, and damping spring 5 is installed in brake cylinder 6
And axial thrust is provided to push rod 8, when blower fan runs well, locking is realized by piston 7 and the collective effect of damping spring 5；Blower fan
During yawing rotation, only damping due to rotation is provided by damping spring 5.The fan yaw brake structural is simple, cost is low, when cabin is needed
When going off course, the damping of brake is only provided by damping spring 5, and piston 7 is failure to actuate, and now cabin is driven by yaw motor and revolved
Turn, while under the moment of friction effect of damping spring 5, being rotated for cabin and providing stable damping, it is ensured that smoothly gone off course
Action, efficiently avoid high pressure liquid force feed and occurs oil leakage phenomenon in cabin braking procedure, also can effectively reduce yaw oscillation,
Extend brake service life；After fan yaw terminates to wind, piston 7 is acted, and combines braking with the realization of damping spring 5, is risen
To braking and the effect of locking, reliably keep cabin angle constant.
In the present embodiment, fixed brake(-holder) block 10 is located at the movable top of brake(-holder) block 9, and damping spring 5 is provided with two pieces, two pieces damping
Spring 5 is positioned opposite in being provided with the both sides of piston 7, brake cylinder 6 along the axial arranged mounting groove of piston 7, and damping spring 5 is located at
In mounting groove, correspondingly the upper end of damping spring 5 is fixedly connected with push rod 8, and lower end is fixedly connected with a spring pedestal 4, mounting groove
Lower end is provided with the bolt 1 for retaining spring base 4；In other embodiments, damping spring 5 is provided with more than one piece, more than one piece damping bullet
Spring 5 is arranged circumferentially along piston 7, also can uniformly be applied to damping on push rod 8.As preferred technical scheme, bullet is damped
Spring 5 may be configured as three.
In the present embodiment, bolt 1 is provided with locking nut 2, to prevent bolt 1 from loosening, and lifts reliability.
In the present embodiment, damping spring 5 is compression spring, simple in construction, compact, in other embodiments also can be using drawing
Stretch spring.
Operation principle of the present utility model is as follows：When wind power generating set is normally run, according to required yaw brake pressure
Regulating bolt 1 arrives specified location, and then bolt 1 is locked using locking nut 2, prevents bolt 1 from loosening, under damping spring 5
End is connected with the upper surface of spring pedestal 4, and upper end and the lower surface of push rod 8 of damping spring 5 are connected, and push rod 8 is consolidated with movable brake(-holder) block 9
Even, the axial thrust of spring pedestal 4 is given at the top of bolt 1, now, and master control room sends instruction, and high pressure liquid force feed passes through 3 pairs of hydraulic pressure oilhole
Piston 7 produces axial thrust effect, and piston 7 and the collective effect of damping spring 5 are close to movable brake(-holder) block 9 and fixed brake(-holder) block 10
On the surface of floating bearing brake disc, the moment of friction of generation firmly locks floating bearing brake disc, keeps cabin referring to
On fixed position.
When blower fan starts yawing rotation, master control room sends instruction, and hydraulic pressure oilhole 3 leads to oil return, and hydraulic oil is to piston 7 without axial direction
Thrust, the damping of brake is only provided by damping spring 5, is rotated for cabin and is provided stable damping force, it is ensured that cabin
Calm down rotation, now cabin is rotated by the driving of yaw motor, while again under the moment of friction effect of damping spring 5, steadily
Ground is turned back to the position specified, and wind power generating set starts normal power generation.
Although the utility model is disclosed above with preferred embodiment, but it is not limited to the utility model.It is any
Those skilled in the art, in the case where not departing from technical solutions of the utility model scope, all using the disclosure above
Technology contents technical solutions of the utility model are made with many possible variations and modification, or be revised as the equivalent of equivalent variations
Embodiment.Therefore, every content without departing from technical solutions of the utility model, according to the utility model technical spirit to real above
Any simple modifications, equivalents, and modifications that example is done are applied, all should be fallen in the range of technical solutions of the utility model protection.
Claims (6)
1. a kind of fan yaw brake, it is characterised in that：Including brake cylinder (6), damping spring (5), fixed brake(-holder) block
(10) the movable brake(-holder) block (9) positioned opposite and with fixed brake(-holder) block (10), the fixed brake(-holder) block (10) is installed on described
On brake cylinder (6), piston (7) is equiped with the brake cylinder (6), the movable brake(-holder) block (9) is installed in the piston
(7) on push rod (8), the damping spring (5) is installed in the brake cylinder (6) and provides axial thrust to the push rod
(8) when, blower fan runs well, locking is realized by the piston (7) and the damping spring (5) collective effect；Fan yaw is transported
When dynamic, only damping due to rotation is provided by the damping spring (5).
2. fan yaw brake according to claim 1, it is characterised in that：The damping spring (5) is provided with two pieces, two
Part damping spring (5) is positioned opposite in the piston (7) both sides.
3. fan yaw brake according to claim 1, it is characterised in that：The damping spring (5) is provided with more than one piece, many
Part damping spring (5) is arranged circumferentially along the piston (7).
4. the fan yaw brake according to claim 1 or 2 or 3, it is characterised in that：Set in the brake cylinder (6)
Have along the axial arranged mounting groove of the piston (7), the damping spring (5) is in the mounting groove, the damping spring
(5) one end is fixedly connected with the push rod (8), and the other end is fixedly connected with a spring pedestal (4), provided with use in the mounting groove
In the bolt (1) for positioning the spring pedestal (4).
5. fan yaw brake according to claim 4, it is characterised in that：The bolt (1) is provided with locking nut
(2)。
6. the fan yaw brake according to claim 1 or 2 or 3, it is characterised in that：The damping spring (5) is pressure
Contracting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284956.8U CN206600238U (en) | 2017-03-22 | 2017-03-22 | A kind of fan yaw brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284956.8U CN206600238U (en) | 2017-03-22 | 2017-03-22 | A kind of fan yaw brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600238U true CN206600238U (en) | 2017-10-31 |
Family
ID=60144337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720284956.8U Expired - Fee Related CN206600238U (en) | 2017-03-22 | 2017-03-22 | A kind of fan yaw brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801659A (en) * | 2017-03-22 | 2017-06-06 | 湖南工程学院 | A kind of fan yaw brake |
-
2017
- 2017-03-22 CN CN201720284956.8U patent/CN206600238U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801659A (en) * | 2017-03-22 | 2017-06-06 | 湖南工程学院 | A kind of fan yaw brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171031 Termination date: 20180322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |