CN207363824U - A kind of wind driven generator yaw arrestment mechanism - Google Patents
A kind of wind driven generator yaw arrestment mechanism Download PDFInfo
- Publication number
- CN207363824U CN207363824U CN201720978862.0U CN201720978862U CN207363824U CN 207363824 U CN207363824 U CN 207363824U CN 201720978862 U CN201720978862 U CN 201720978862U CN 207363824 U CN207363824 U CN 207363824U
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- China
- Prior art keywords
- spring
- friction plate
- gas
- brake
- driven generator
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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 patent is related to wind-driven generator.A kind of wind driven generator yaw arrestment mechanism, including trig loop and brake unit, brake unit includes liquid braking device and spring-loaded brake, liquid braking device includes dynamic seal, brake cylinder, piston, hydraulic braking portion friction plate and leak detection mechanism, spring-loaded brake includes spring braking portion friction plate and spring, leak detection mechanism includes annular oil duct, oil tank and the testing agency for being arranged on brake cylinder, dynamic seal includes gas-flow closure circle and the source of the gas being set on piston, and annular oil duct is between static sealing circle and gas-flow closure circle.The utility model patent can in time find when providing a kind of sealing ring leakage failure and can effectively avoid hydraulic oil from draining to the wind driven generator yaw arrestment mechanism on trig loop after producing leakage, solve the problems, such as to find in time when existing wind driven generator yaw arrestment mechanism produces leakage.
Description
Technical field
The utility model patent is related to wind-driven generator, more particularly to a kind of wind driven generator yaw arrestment mechanism.
Background technology
Some wind-driven generators by yaw brake mechanism using constantly being adjusted and the direction of fixed fan blade so that wind-force
Generator is precisely to wind.When wind power generating set needs yaw, logical damping torque makes During yaw more steady.Existing yaw
Arrestment mechanism provides damping torque by hydraulic braking and overbottom pressure completely.Sealing ring, which fails, to be caused to find in time during leakage,
Until it could be found when can not use.
Utility model content
The utility model patent can be found in time when providing a kind of sealing ring leakage failure and produce leakage after can
Effectively avoid hydraulic oil from draining to the wind driven generator yaw arrestment mechanism on trig loop, solve existing wind driven generator yaw
The problem of arrestment mechanism can not be found in time when producing leakage。
Above technical problem is solved by following technical proposal：A kind of wind driven generator yaw arrestment mechanism, including
Yaw bearing, the trig loop being connected in yaw bearing and the brake unit for coordinating trig loop progress friction catch, the braking
Unit includes liquid braking device and spring-loaded brake, and the liquid braking device passes through including dynamic seal, brake cylinder, one end
Piston that static sealing circle is sealedly connected in brake cylinder, the hydraulic braking portion friction plate being connected on the piston other end and let out
Leak detection mechanism, the spring-loaded brake abut to described including spring braking portion friction plate and driving spring braking parts friction plate
Spring on the axial side of trig loop, spring braking portion friction plate is located at the axial opposite side of the trig loop, described
Leak detection mechanism include being arranged on the wall of the brake cylinder along the annular oil duct of brake cylinder circumferentially extending, with described
The oil tank of annular oil duct connection and the testing agency that alarm is produced when detecting and having oil in oil tank, the static sealing circle are located at institute
Side of the annular oil duct away from hydraulic braking portion friction plate is stated, the dynamic seal includes being set on the piston
Gas-flow closure circle and the source of the gas to be linked together by pipeline with gas-flow closure circle, the pipeline are equipped with motor-driven valve, leakage inspection
Survey mechanism and detect that the motor-driven valve is opened so that the source of the gas is inflated to gas-flow closure circle to the gas-flow closure circle during oil leak
The piston and brake cylinder are sealed connected together, the annular oil duct is located at the static sealing circle and gas-flow closure circle
Between.During non-yaw state, the hydraulic braking portion friction plate of liquid braking device also abutted with trig loop produce together frictional force,
It is total to together so as to cooperate with the spring braking portion friction plate of spring-loaded brake to abut the frictional force produced with trig loop together
With braking.When being yawed, then liquid braking device pressure release and cause since braking parts friction plate disengages with trig loop, i.e. only logical
Crossing spring-loaded brake provides yaw required brake force.When liquid braking device produces leakage, leak detection mechanism detects
And feedback is produced, send alarm signal, prompt needs to take corresponding precautionary measures, prevent from sealing entirely ineffective, break down
Shut down, so as to improve generating efficiency, reduce maintenance workload.Due in the state of yaw liquid braking device without work, from
And the usage time for playing the role of shortening liquid braking device is played and prolonged the service life.Gas-flow closure circle is the same as living after producing leakage
Plug is sealed, has avoided water clock from influencing braking effect to trig loop and cause to pollute.Gas-flow closure when not revealing
Circle be not sealed between piston together, so as to avoid producing abrasion, when realizing that raising avoids the oil from being leaked on trig loop
Reliability.
Preferably, the spring-loaded brake further includes mounting base, the friction plate base equipped with guide rod, is set in guiding
Driving plate and external screw thread regulation pipe on bar, the mounting base are equipped with mounting hole, spring braking portion friction plate, friction plate bottom
Seat, spring and driving plate are successively set in the mounting hole, and the external screw thread regulation pipe is threaded in the mounting base
And abutted together with the driving plate.Brake force caused by spring-loaded brake can be adjusted.
Preferably, the spring is compression spring.
Preferably, the transparent configuration that the testing agency includes being arranged in the oil tank connects oil pipe, positioned at connecing oil
The reflective photoelectric switch whether ball floats that can be in the light by the ball that is in the light of the oil float in the brake cylinder, detection in pipe
With the alarm alarmed when reflective photoelectric switch detects that the ball that is in the light floats.Improve a kind of technology of testing agency
Conceive different technical solutions.
Preferably, the oil pipe that connects is cylindrical tube, the ball that is in the light be slidably connected at it is described connect in oil pipe, it is described to be in the light
Ball is equipped with some edges sphere diameter that is in the light and is in the light to perforation the oilhole of ball.Good reliability.
Preferably, hydraulic braking portion friction plate includes mounting portion and friction portion, the mounting portion is equipped with two edges
Trig loop is circumferentially distributed in the cleaning structure mounting groove at friction portion both ends, and cleaning knot is provided with the cleaning structure mounting groove
Structure, the cleaning structure include Erasing cloth supporter, are connected to being smeared to the rag of trig loop progress wiped clean and driving on Erasing cloth supporter
The lifting cylinder that cloth holder is axially lifted along trig loop.In use, make to be located at trig loop rotation direction in two cleaning structures
The rag of the cleaning structure in front is the same as trig loop contact is cleaned, another is lifted.Braking effect can be improved.
Preferably, the side of the cleaning structure mounting groove away from friction portion, which is equipped with along what trig loop radially extended, receives dirt
Groove.The dirt under cleaning can be accommodated.Secondary engaging friction portion is reduced with the probability between trig loop.
Preferably, described receive is equipped with blowdown conveyer belt in dirty groove, the blowdown conveyer belt is equipped with blowdown push plate, described
Blowdown push plate has two pieces, and two pieces of blowdown push plates are uniformly distributed along the circumferential direction of blowdown conveyer belt.After having received more than the dirt in dirty groove,
By playing blowdown conveyer belt, dirt is released in the driving blowdown push plate of blowdown conveyer belt.During original state, one piece of blowdown push plate position
In blowdown conveyer belt receive dirty side remote dirt discharge groove discharge dirt one end on.
The utility model patent tool has the advantage that：Brake force only is provided by spring-loaded brake during yaw, can be reduced
The usage time of liquid braking device is to postpone service life；When liquid braking device produces leakage, alarm letter can be sent in time
Number with prompting need to take counter-measure；Hydraulic oil will not escape on trig loop and influence braking when producing leakage.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model patent.
The schematic cross-sectional view of Fig. 2 brake units.
Fig. 3 is schematic diagram when hydraulic section friction plate is observed along the radial outer end of trig loop.
The A-A schematic cross-sectional views of Fig. 4 Fig. 3.
Fig. 5 is the enlarged section schematic diagram of oil tank.
In figure：Yaw bearing 1, trig loop 11, brake unit 3, liquid braking device 31, brake cylinder 311, piston 312, liquid
Pressure braking parts friction plate 313, mounting portion 3131, friction portion 3132, cleaning structure mounting groove 3133, the dirty groove 3134, static close received
Seal 314, cleaning structure 315, Erasing cloth supporter 3151, rag 3152, lifting cylinder 3153, blowdown conveyer belt 316, blowdown push plate
3161st, spring-loaded brake 32, mounting base 321, mounting hole 3211, spring braking portion friction plate 322, friction plate base 323, spring
324th, driving plate 325, guide rod 326, external screw thread regulation pipe 327, leak detection mechanism 4, annular oil duct 41, oil tank 42, oil duct
421st, testing agency 43, connect oil pipe 431, connect oil bucket 4311, the ball limited block 4312 that is in the light, the ball 432 that is in the light, oilhole 4321, reflection
Formula optoelectronic switch 433, alarm 434, dynamic seal 5, gas-flow closure circle 51, source of the gas 52, pipeline 53, motor-driven valve 54.
Embodiment
The utility model patent is further described with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, a kind of wind driven generator yaw arrestment mechanism, including yaw bearing 1, the system that is arranged in yaw bearing
Moving-coil 11 and several brake units 3.
Brake unit 3 has 6.3 front sides for being arranged on trig loop 11 in 6 brake units 3, in addition 3 brakings are single
Member 3 is arranged on the rear side of trig loop 11.
Referring to Fig. 2, brake unit 3 includes liquid braking device 31 and spring-loaded brake 32.Liquid braking device 31 is equipped with leakage
Testing agency 4 and dynamic seal 5.
Liquid braking device 31 includes brake cylinder 311, piston 312 and hydraulic braking portion friction plate 313.Hydraulic braking portion rubs
Pad 313 includes mounting portion 3131 and friction portion 3132.Friction portion 3132 be connected to mounting portion 3131 towards trig loop 11
On side.One end of piston 312 is sealedly connected in brake cylinder 311 by static sealing circle 314, the same mounting portion of the other end
3131 link together.Static sealing circle 314 is fixed together with brake cylinder 311.
Leak detection mechanism 4 includes annular oil duct 41 and oil tank 42.Annular oil duct 41 is arranged on the side face of brake cylinder 311
On.Annular oil duct 41 is circumferentially extended along brake cylinder.Oil tank 42 is connected by oil duct 421 with annular oil duct 41.Static sealing circle
314 positioned at annular side of the oil duct 41 away from hydraulic braking portion friction plate 313.
Dynamic seal 5 includes gas-flow closure circle 51 and source of the gas 52.Gas-flow closure circle 51 is set on piston 312.Inflation
Sealing ring 51 is fixed together with brake cylinder 311.Source of the gas 52 is compressed air.Source of the gas 52 is by pipeline 53 with gas-flow closure circle
51 connections.Pipeline 53 is equipped with motor-driven valve 54.Dynamic seal 5 further includes the control that same leak detection mechanism 4 is electrically connected
Unit processed.Annular oil duct 41 is between static sealing circle 314 and gas-flow closure circle 51.Gas-flow closure circle 51 is during original state
Piston and brake cylinder are not sealed in flat state, i.e. gas-flow closure circle 51.When leak detection mechanism 4 detects Lou
When oily, control unit opens motor-driven valve 54, and the gas in source of the gas 52 is input to gas-flow closure circle 51 in gas-flow closure circle 51
Heave, so that piston and brake cylinder are sealed connected together by gas-flow closure circle 51, so as to prevent oil droplet from draining to hydraulic braking
On portion's friction plate.
Spring-loaded brake 32 includes mounting base 321 and external screw thread regulation pipe 327.Mounting base 321 is equipped with mounting hole 3211.Peace
Dress is equipped with spring braking portion friction plate 322, friction plate base 323, spring 324 and driving plate 325 successively in hole 3211.Spring system
Dynamic portion's friction plate 322 is fixed on friction plate base 323.Friction plate base 323 is equipped with guide rod 326.Driving plate 325 is set in
On guide rod 326.Spring 324 is compression spring.324 one end of spring with friction plate base abut together, the other end supports with driving plate
It is connected together.External screw thread regulation pipe 327 is threaded in mounting base 321.External screw thread regulation pipe 327 is connected to driving plate 325
Together.
In use, adjust the frictional force of spring braking portion friction plate by rotating external screw thread regulation pipe 327.
Referring to Fig. 3, mounting portion 3131 is equipped with two cleaning structure mounting grooves 3133 and two and receives dirty groove 3134.Two cleanings
Structure mounting groove 3133 is received positioned at two between dirty groove 3134.Two cleaning structure mounting grooves 3133 are circumferentially distributed in along trig loop
3132 both ends of friction portion.Dirty groove 3134 of receiving positioned at friction portion the same end is connected with cleaning structure mounting groove 3133.Cleaning structure
Cleaning structure 315 is installed in mounting groove 3133.Cleaning structure 315 include Erasing cloth supporter 3151, be connected on Erasing cloth supporter to system
Moving-coil carries out the lifting cylinder 3153 that the rag 3152 of wiped clean and driving Erasing cloth supporter are axially lifted along trig loop.
Dirty groove 3134 of receiving is interior to be equipped with blowdown conveyer belt 316.Blowdown conveyer belt 316 is equipped with blowdown push plate 3161.Blowdown pushes away
Plate 3161 has two pieces.
Referring to Fig. 4, dirty groove 3134 of receiving is the straight slot radially extended along trig loop., two pieces of blowdown push plates 3161 are defeated along blowdown
The circumferential direction of band 316 is sent to be uniformly distributed.
Referring to Fig. 3 and Fig. 4, when use, makes to drop to rag with making along the cleaning structure 315 in front of trig loop rotation direction
Moving-coil contact realizes that cleaning, another cleaning structure 315 are raised to rag different braking circle contact thereon.During generation state,
One piece of blowdown push plate 3161 be located at blowdown conveyer belt 316 towards receive dirty groove 3134 notch side it is dirty away from the discharge of dirty groove is received
On one end of thing, it can realize the angle for rotating minimum and discharge the dirt received in dirty groove.Dirt under cleaning, which is collected at, to be received
On blowdown conveyer belt 316 in dirty groove 3134, when assembling to when needing discharge, blowdown conveyer belt 316 is set to rotate half cycle.
Referring to Fig. 5, leak detection mechanism 4 further includes testing agency 43.Testing agency 43 is including connecing oil pipe 431, be in the light ball
432nd, reflective photoelectric switch 433 and alarm 434.It is cylindrical tube to connect oil pipe 431.It is transparent configuration to connect oil pipe 431.Connect oil pipe
431 are arranged in oil tank 42.Connect oil pipe 431 upper end be equipped with connect oil bucket 4311.Connect oil bucket 4311 positioned at oil duct 421 lower section and
Align with oil duct 421.Connect and the ball limited block 4312 that is in the light is equipped with oil pipe 431.The ball 432 that is in the light, which is slidably connected at, to be connect in oil pipe 431.
The ball 432 that is in the light is equipped with some edges sphere diameter that is in the light and is in the light to perforation the oilhole 4321 of ball.Reflective photoelectric switch 433 is installed on and connects oil
On pipe 431, when the ball 432 that is in the light does not float, the ball 432 that is in the light can not block light that reflective photoelectric switch 433 sends,
It can not be detected by reflective photoelectric switch 433.
In use, when static sealing circle produces abrasion and oil leak, oil enters oil tank and enters and connect oil pipe 431, will be in the light
Ball 432 floats and blocks the light that reflective photoelectric switch 433 is sent, so that detected by reflective photoelectric switch 433, it is reflective
Optoelectronic switch 433 detects drives alarm 434 to alarm and open motor-driven valve when the ball 432 that is in the light floats.
Referring to Fig. 1 to Fig. 5, in use, during yaw state, 311 pressure release of brake cylinder so that piston 312 does not drive hydraulic pressure
Braking parts friction plate 313 is stretched out and abutted together with trig loop frictional property, at this time the only same trig loop of spring braking portion friction plate
Abut and produce friction together and brake force is provided.During non-yaw state, the hydraulic oil driving piston 312 in brake cylinder 311
Go driving hydraulic braking portion friction plate 313 to be abutted with trig loop and produce brake force, at this time spring braking portion friction plate together
Remain on braking action., alarm generation warning reminding oil leak.
Claims (3)
1. a kind of wind driven generator yaw arrestment mechanism, including yaw bearing, the trig loop that is connected in yaw bearing and cooperation
Trig loop carries out the brake unit of friction catch, it is characterised in that the brake unit includes liquid braking device and spring braking
Device, the liquid braking device are sealedly connected on brake cylinder including dynamic seal, brake cylinder, one end by static sealing circle
Interior piston, the hydraulic braking portion friction plate being connected on the piston other end and leak detection mechanism, the spring-loaded brake bag
Include spring braking portion friction plate and driving spring braking parts friction plate abuts to spring on the axial side of the trig loop, institute
The axial opposite side that spring braking portion friction plate is located at the trig loop is stated, the leak detection mechanism includes being arranged on the system
Move the annular oil duct circumferentially extended along brake cylinder on the wall of oil cylinder, the oil tank connected with the annular oil duct and detect oil
The testing agency of alarm is produced when having oil in tank, the static sealing circle is positioned at the annular oil duct away from the hydraulic braking portion
The side of friction plate, the dynamic seal include the gas-flow closure circle being set on the piston and are inflated together by pipeline close
The source of the gas that seal links together, the pipeline are equipped with motor-driven valve, and leak detection mechanism detects motor-driven valve during oil leak
Open so that the source of the gas is inflated to gas-flow closure circle by the piston and brake cylinder sealed connection to the gas-flow closure circle
Together, the annular oil duct is between the static sealing circle and gas-flow closure circle.
A kind of 2. wind driven generator yaw arrestment mechanism according to claim 1, it is characterised in that the spring-loaded brake
Further include mounting base, the friction plate base equipped with guide rod, be arranged driving plate and external screw thread regulation pipe on the guide bar, it is described
Mounting base is equipped with mounting hole, and spring braking portion friction plate, friction plate base, spring and driving plate are successively set on the peace
Fill in hole, the external screw thread regulation pipe is threaded in the mounting base and is abutted together with the driving plate.
3. a kind of wind driven generator yaw arrestment mechanism according to claim 1 or 2, it is characterised in that the spring is
Compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978862.0U CN207363824U (en) | 2017-08-07 | 2017-08-07 | A kind of wind driven generator yaw arrestment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720978862.0U CN207363824U (en) | 2017-08-07 | 2017-08-07 | A kind of wind driven generator yaw arrestment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207363824U true CN207363824U (en) | 2018-05-15 |
Family
ID=62421994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720978862.0U Expired - Fee Related CN207363824U (en) | 2017-08-07 | 2017-08-07 | A kind of wind driven generator yaw arrestment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207363824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843711A (en) * | 2018-08-17 | 2018-11-20 | 大连东鼎工业设备有限公司 | A kind of wind power generating set flexible braking hydraulic cylinder |
-
2017
- 2017-08-07 CN CN201720978862.0U patent/CN207363824U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843711A (en) * | 2018-08-17 | 2018-11-20 | 大连东鼎工业设备有限公司 | A kind of wind power generating set flexible braking hydraulic cylinder |
| CN108843711B (en) * | 2018-08-17 | 2019-04-16 | 大连东鼎工业设备有限公司 | A kind of wind power generating set flexible braking hydraulic cylinder |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20180807 |