CN206785565U - A kind of wind-powered machine unit hub overspeed monitoring appliance - Google Patents
A kind of wind-powered machine unit hub overspeed monitoring appliance Download PDFInfo
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- CN206785565U CN206785565U CN201720505838.5U CN201720505838U CN206785565U CN 206785565 U CN206785565 U CN 206785565U CN 201720505838 U CN201720505838 U CN 201720505838U CN 206785565 U CN206785565 U CN 206785565U
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- sleeve
- sliding block
- top cover
- spring
- post
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A kind of wind-powered machine unit hub overspeed monitoring appliance, including insulator foot, sleeve, bottom post, spring, sliding block, top post and insulating top cover；In addition to insulating top cover and insulator foot are insulator, remaining is conductive good conductor, using in wheel hub rotary course, to centrifugal force caused by sliding block, layout is rationally assembled using insulating element and good conductor part, mechanical mechanism for monitoring is changed into the switch contact mechanism of passive type.The utility model can provide a simple in construction and independent, reliable wheel hub overspeed monitoring appliance for existing overspeed protection system; to ensure existing soft and hardware overspeed protection system when existing monitoring sensor breaks down; remain to reliably receive overspeed alarming signal; and it is simple in construction, easily fabricated assembling, reliability are high.
Description
Technical field
It the utility model is related to wind power generating set field；More particularly to a kind of wind-powered machine unit hub overspeed monitoring appliance.
Background technology
At present, the wheel hub hypervelocity monitoring of Wind turbines, type of alarm, mainly pass through software overspeed protection (reduction of speed) and hardware
Overspeed protection (becoming oar or shutdown) is realized.It is real by being contrasted with setting value by the way that rotary speed measure value is submitted into master control system
The now monitoring to rotating speed, adjustment and starting and stopping machine etc. control.
Existing soft and hardware overspeed protection monitoring and fault-signal feedback device, are related to a large amount of electronic components, electric mechanical switch
And logic circuit etc..Wind turbines actual operating mode is severe, exists in the series and parallel use of substantial amounts of component logically
Failure risk, greatly reduce the overall reliability of hypervelocity monitoring system；Especially electrical equipment, in low temperature, dust storm, sleet
Deng in environment, it is easy to fail, and then cause blower fan monitoring system can not Normal Feedback alarm signal when rotating speed transfinites
Number, there is the damage of complete machine overload or the phenomenon of falling tower.
Utility model content
In order to overcome the monitoring of existing wind-powered machine unit hub hypervelocity and overspeed signal feedback device deposit it is easy in the presence of a harsh environment
The deficiency of phenomena such as failure, reliability reduction, the purpose of this utility model are：A kind of wind-powered machine unit hub hypervelocity monitoring is provided
Device, the overspeed monitoring appliance can provide a wheel hub hypervelocity monitoring simple in construction and independent for existing overspeed protection system
Device, to ensure that existing soft and hardware overspeed protection system when existing monitoring sensor breaks down, remains to reliably receive
To overspeed alarming signal；And few, simple in construction, the easily fabricated assembling of the amount of parts of device, reliability are high.
Technical scheme is as follows used by the utility model solves its technical problem：
A kind of wind-powered machine unit hub overspeed monitoring appliance, it includes insulator foot, sleeve, bottom post, spring, cunning
Block, top post and insulating top cover；Described insulating top cover and insulator foot are insulator, described sleeve, bottom wiring
Post, spring, sliding block and top post are conductive good conductor；Threaded through hole is provided with described insulator foot,
Described sleeve is the unlimited cylindrical shape thin-walled devices of one end closing, the other end, and the centre of one end is closed at it, stretch out one section with
The stud that the screw opened on insulator foot is adapted, makes sleeve be threadedly coupled with insulator foot, and the end of one end is closed in sleeve
Face is provided with disk, and bottom post is housed on the disk, and one end of described spring is connected with sliding block, the other end and sleeve
Disk on end face is connected, and the internal diameter of spring, the external diameter of sliding block with sleeve matches, and spring and sliding block are sequentially loaded into sleeve
It is interior；Described insulating top cover is provided with seam, and the external diameter of the seam and the internal diameter of sleeve match, and insulating top cover is can be inserted into set
The unlimited one end of cylinder, is provided with through hole at the center of insulating top cover, and one end of described top post is flat disk, the circle
Disk is bonded with the end face of sliding block, and the other end is elongated shaft-like cylinder, and the centre bore of its diameter and insulating top cover matches, and can insert
Enter in the centre bore.
Described insulator foot is fixedly mounted on the rotary part in wheel hub.
The technical solution of the utility model mainly includes the principle and structure of independent wheel hub overspeed monitoring appliance.This practicality
Above-mentioned technical proposal used by new device, based on centrifugal force mechanism of production, using in wheel hub rotary course, sliding block is produced
Centrifugal force, layout is rationally assembled using insulating element and good conductor part, mechanical mechanism for monitoring is changed into passive type
Switch contact mechanism.As shown in Figure 1 and Figure 2, wheel hub overspeed monitoring appliance is arranged on the rotary part in wheel hub, as illustrated,
The axis of device is perpendicular to pivot center.In all parts of the device, in addition to insulating top cover and insulator foot, miscellaneous part is
Conductive good conductor.Under normal condition, sliding block contacts with top post, spring；Spring and barrel contacts；Sleeve and bottom
Binding post contacts；Bottom post, sliding block, spring, sleeve, top post form a galvanic circle, have equivalent to one
The switch of normally-closed contact.
In actual moving process, the part rotates with wheel hub.Wherein sliding block quality is m, and acceleration of gravity g, spring is certainly
It is L0 by length, length is L1, spring rate k after spring assembling, and counter spring force f after installation, sliding block barycenter is away from wheel hub
Rotation axis distance is r, and wheel hub angular velocity of rotation is ω, and the centrifugal force of sliding block is F in wheel hub rotation.
Under rated speed state, there is such as following formula (1), (2), (3) relation in above variable：
F=m ω2r………………………………………(1)
F=k (L0-L1) ... ... ... ... ... ... (2)
F+mg≤f…………………………………(3)
Centrifugal force F increases and increased with axial fan hub rotational speed omega.Work as F+mg>During f, sliding block under the action of the centrifugal force, compresses
Spring is simultaneously axially moved along sleeve, is disengaged with top post, whole galvanic circle is disconnected, now, device equivalent to
The normally-closed contact being opened.
During actual use, it is only necessary to an AC or DC power is provided to two binding posts of the utility model device,
Loop turns under normal condition；When hub rotation speed transfinites, loop disconnects.The device can both access theft-resistant link chain, also can be independent
Pitch-controlled system is accessed, reliable hub rotation speed overload alarm signal is provided for unit.
Due to using above-mentioned technical proposal, making the utility model wheel hub overspeed monitoring appliance be exceeded the speed limit with existing soft and hardware
Protection system is compared, and is had the advantages that：Can be provided for the existing overspeed protection system of Wind turbines one it is simple in construction
And independent, reliable wheel hub overspeed monitoring appliance, to ensure that existing soft and hardware overspeed protection system passes in existing monitoring
When sensor breaks down, remain to reliably receive overspeed alarming signal, can be as effective supplement of existing hypervelocity monitoring means.This
Utility model is the passive monitoring device based on mechanical device, and the structure of device is simple, amount of parts is few, easily fabricated dress
Match somebody with somebody, reliability height.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of wind-powered machine unit hub overspeed monitoring appliance of the utility model and the installation site of wheel hub and the original of device
Manage schematic diagram.
Fig. 2 is the schematic diagram of the spring free length L0 and the length L1 after spring assembling in the device in Fig. 1.
Fig. 3 is a kind of outline structural diagram of wind-powered machine unit hub overspeed monitoring appliance of the utility model.
Fig. 4 is Fig. 3 A-A schematic cross-sectional views.
In figure, 1. insulator foots, 2. sleeves, 3. bottom posts, 4. springs, 5. sliding blocks, 6. top posts, 7. insulation
Top cover, 8. wheel hubs.
Embodiment
Refer to an a kind of implementation of wind-powered machine unit hub overspeed monitoring appliance of the utility model shown in Fig. 3, Fig. 4
Example, the wheel hub overspeed monitoring appliance include insulator foot 1, sleeve 2, bottom post 3, spring 4, sliding block 5, top post 6
And insulating top cover 7；Insulating top cover 7 and insulator foot 1 are insulator, sleeve 2, bottom post 3, spring 4, sliding block 5 and top
Binding post 6 is conductive good conductor.Threaded through hole is provided with insulator foot 1, for installation sleeve 2, sleeve 2 is
The unlimited cylindrical shape thin-walled devices of one end closing, the other end, close the centre of one end at it, stretch out on one section and insulator foot 1
The stud that the screw opened is adapted, sleeve 2 is threadedly coupled with insulator foot 1, close in sleeve 2 and be provided with the end face of one end
Disk, bottom post 3 is housed on the disk, bottom post 3 is by welding the disk with the end face of sleeve 2 in the present embodiment
Connection, can also be connected through a screw thread.One end of spring 4 is connected with sliding block 5, and the other end is connected with the disk on the end face of sleeve 2, bullet
The internal diameter of spring 4, the external diameter of sliding block 5 with sleeve 2 matches, and spring 4 and sliding block 5 are sequentially loaded into sleeve 2.
Seam is provided with insulating top cover 7, the internal diameter of the external diameter and sleeve 2 of the seam matches, and insulating top cover 7 is inserted
Enter the unlimited one end of sleeve 2, through hole is provided with the center of insulating top cover 7, for being connected with top post 6, top wiring
One end of post 6 is flat disk, and the disk is bonded with the end face of sliding block 5, and the other end is elongated shaft-like cylinder, its diameter with
The centre bore of insulating top cover 7 matches, and can be inserted into the centre bore.
Insulator foot 1 is fixedly mounted on the rotary part in wheel hub 8.It will be insulated by harsh chemical adhesive during installation
Base 1 is adhesively fixed with the inner surface of wheel hub 8, or on 8 corresponding installation position of insulator foot 1 and wheel hub after punching, is used
Bolt is attached fixation.
The assembling process of each parts of the present embodiment is as follows：
1st, insulator foot 1 is fixed on wheel hub 8.
2nd, the stem portion of top post 6 is inserted in the hole of insulating top cover 7, and chemical adhesion is smeared on faying face
Agent, which is fixed, to be integrated.
3rd, spring 4 is fitted into sleeve 2, and fills in sliding block 5, then insulating top cover 7 is installed, sliding block 5 and spring 4 are pressed into
In sleeve 2.
Claims (3)
- A kind of 1. wind-powered machine unit hub overspeed monitoring appliance, it is characterised in that：Described wheel hub overspeed monitoring appliance includes insulation Base (1), sleeve (2), bottom post (3), spring (4), sliding block (5), top post (6) and insulating top cover (7)；It is described Insulating top cover (7) and insulator foot (1) be insulator, described sleeve (2), bottom post (3), spring (4), sliding block (5) and top post (6) is conductive good conductor；Threaded through hole is provided with described insulator foot (1), it is described Sleeve (2) be the unlimited cylindrical shape thin-walled devices of one end closing, the other end, close the centre of one end at it, stretch out one section with The stud that the screw opened on insulator foot (1) is adapted, sleeve (2) is set to be threadedly coupled with insulator foot (1), in sleeve (2) The end face of closing one end is provided with disk, and bottom post (3), one end of described spring (4) and cunning are housed on the disk Block (5) be connected, the other end is connected with the disk on sleeve (2) end face, spring (4), sliding block (5) external diameter with sleeve (2) Internal diameter matches, and spring (4) and sliding block (5) are sequentially loaded into sleeve (2)；Described insulating top cover (7) is provided with seam, should be only The internal diameter of the external diameter and sleeve (2) of mouth matches, and insulating top cover (7) is can be inserted into the unlimited one end of sleeve (2), in insulating top cover (7) center is provided with through hole, and one end of described top post (6) is the end face of flat disk, the disk and sliding block (5) Fitting, the other end is elongated shaft-like cylinder, and its diameter and the centre bore of insulating top cover (7) match, and can be inserted into the centre bore In.
- 2. wind-powered machine unit hub overspeed monitoring appliance according to claim 1, it is characterised in that：Described insulator foot (1) it is fixedly mounted on the rotary part in wheel hub (8).
- 3. wind-powered machine unit hub overspeed monitoring appliance according to claim 1, it is characterised in that：Described bottom post (3) it is connected, or is connected through a screw thread with the disk of sleeve (2) end face by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505838.5U CN206785565U (en) | 2017-05-09 | 2017-05-09 | A kind of wind-powered machine unit hub overspeed monitoring appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505838.5U CN206785565U (en) | 2017-05-09 | 2017-05-09 | A kind of wind-powered machine unit hub overspeed monitoring appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785565U true CN206785565U (en) | 2017-12-22 |
Family
ID=60710932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720505838.5U Active CN206785565U (en) | 2017-05-09 | 2017-05-09 | A kind of wind-powered machine unit hub overspeed monitoring appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785565U (en) |
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2017
- 2017-05-09 CN CN201720505838.5U patent/CN206785565U/en active Active
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