CN207200552U - A kind of non-contact gyromagnet excitation hanging energy accumulator - Google Patents
A kind of non-contact gyromagnet excitation hanging energy accumulator Download PDFInfo
- Publication number
- CN207200552U CN207200552U CN201721059622.7U CN201721059622U CN207200552U CN 207200552 U CN207200552 U CN 207200552U CN 201721059622 U CN201721059622 U CN 201721059622U CN 207200552 U CN207200552 U CN 207200552U
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- transducer
- circular arc
- cam ring
- camshaft
- wind
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Abstract
It the utility model is related to a kind of non-contact gyromagnet excitation hanging energy accumulator, category wind-driven generator monitoring field.Blade of wind-driven generator is on main shaft, and camshaft one end is on blade of wind-driven generator, and compartment of terrain is equipped with cam ring on camshaft；Cam ring contour curve is made up of two long circular arcs, two short circular arcs and the straightway of the long circular arc of connection and short circular arc, and long circular arc and camshaft are coaxial, and straightway and length circular arc are tangent, and cam ring is magnet ring and magnetic pole is radially arranged；End cap is housed, camshaft warp beam is housed on housing sidewall and end cap on housing；Fixed magnet is housed equipped with base, front and rear wall inner side equipped with suspension bracket, lower wall inner side on the inside of shell top wall；Suspension bracket prong is placed between adjacent two cam ring, and coil is embedded with prong；Base boss both sides are equipped with the transducer of free end band moving magnet；Transducer is flat construction when moving magnet is in contact with the long circular arc on cam ring, and the deflection of transducer is less than its allowable value when transducer free end is in contact with fixed magnet.
Description
Technical field
The utility model belongs to wind-driven generator monitoring technical field, and in particular to a kind of non-contact gyromagnet excitation hanging prisoner
Energy device, powers for wind power generating motor blade monitoring system.
Background technology
Blade is that wind-driven generator receives wind energy and converts thereof into the critical component of kinetic energy, determines the reliable of generator
Property and service life.Blade of wind-driven generator is usually operated under rugged environment, and self structure yardstick, weight and work carry
Lotus etc. is all very big, in addition to because being damaged by the irresistible natural calamity such as thunderbolt and earthquake, spontaneous corrosion, abrasion and fatigue stress
Blade injury is also inevitable Deng caused by.Practice have shown that 1/3rd of accident occur in wind-driven generator running
It is caused by blade injury, therefore the health monitoring of blade of wind-driven generator is imperative.As blade of wind-driven generator is grown
The increasingly increase of degree and wind-driven generator total number, could not in the past by the method manually inspected periodically and safeguarded
Meet production requirement.Therefore, there has been proposed the blade of wind-driven generator health status monitoring method of diversified forms and accordingly
Self-power supply device, but because of the restriction of existing self-power supply device reliability and generated energy etc., the online prison of blade of wind-driven generator
Survey technology is not yet used widely.
The content of the invention
The utility model proposes a kind of non-contact gyromagnet excitation hanging energy accumulator, the embodiment that the utility model uses
It is：Blade of wind-driven generator is arranged on main shaft；One end of camshaft is arranged on blade of wind-driven generator through screw, camshaft
Upper compartment of terrain is provided with cam ring；The contour curve of cam ring by two long circular arcs, two short circular arcs and the long circular arc of connection and
The straightway of short circular arc is formed, and long circular arc and camshaft are coaxial, and straightway and long circular arc and short circular arc are tangent, and cam ring is magnet ring
And magnetic pole is radially arranged；End cap is installed through screw on housing, camshaft is arranged on side wall and the end cap of housing through bearing；
Through screw is provided with suspension bracket, lower wall inner side is provided with base through screw, lower wall outside is provided with through screw on the inside of the upper wall of housing
Fixed magnet is installed through screw on the inside of balancing weight, antetheca and rear wall；Suspension bracket is fourchette structure, and the prong of suspension bracket is placed in axially adjacent
Two cam rings between, be inlaid with coil on prong, the diameter of coil is less than the radial thickness of cam ring；The boss both sides of base
Transducer all is installed through screw and briquetting, transducer is the PZT (piezoelectric transducer) formed by substrate and piezoelectric piece bonding, and substrate leans on
Nearly boss installation；Transducer free end is provided with moving magnet, the like pole phase of moving magnet and fixed magnet and cam ring through screw
To installation.
Transducer is flat construction, not occured bending and deformation when moving magnet is in contact with the long circular arc on cam ring, transducing
The bending deformation quantity of transducer is maximum when device free end is in contact with fixed magnet, and now maximum crushing stress is permitted less than it on piezoelectric patches
It is less than its allowable value with the deflection of value, transducer, the deflection allowable of transducer is calculated by below equation, i.e.,：
Wherein：B=1- α+α β, A=α4
(1-β)2-4α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep,
hmIt is respectively substrate thickness and transducer gross thickness with H, EmAnd EpThe respectively Young's modulus of substrate and piezoelectric patches, k31WithPoint
Not Wei piezoceramic material electromechanical coupling factor and permissible compression stress, L be transducer length.
During work, i.e., when blade of wind-driven generator drives camshaft and cam ring to be rotated with generator shaft, shell
Body and transducer opposing cam ring rotate, so that the position relationship and active force between moving magnet and cam ring change：
Long circular arc and the deflection of moving magnet transducer when relative on cam ring is minimum, and cam ring rotates the straightway made on cam ring
With moving magnet when relative the deflection of transducer start to increase, transducer when the short circular arc on cam ring is relative with moving magnet
Compression on bending deformation quantity and piezoelectric patches is maximum；Hereafter, the compression on the deflection and piezoelectric patches of transducer is with cam
Ring, which rotates, to be started to be gradually reduced, and is reduced to compression of moving magnet when relative with long circular arc on the deflection and piezoelectric patches of transducer
Minimum, so far complete an Energizing cycle.In above-mentioned cam ring and transducer relative rotational motion, compression replaces on piezoelectric patches
With mechanical energy is converted into electric energy during reducing, this process is piezo-electric generating for increase；Meanwhile coil and cam ring
Relatively rotate, also convert mechanical energy into electric energy during coil cutting magnetic line, this process is Electromagnetic generation.
Advantage and characteristic：1. the middle piezoelectric patches that works is subjected only to compression, avoid because of the excessive damage of tension stress, reliability
It is high；2. PZT (piezoelectric transducer) deflection is determined and spacing through fixed magnet by cam lift, deflection and voltage are identical under any rotating speed,
Effective band is wide；It is 3. strong using piezoelectricity and electromagnetism prisoner's energy unit synchronous generator, generating power supply capacity.
Brief description of the drawings
Fig. 1 is the structural profile illustration of energy accumulator in one preferred embodiment of the utility model；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is one preferred embodiment convexity wheel shaft of the utility model and the sectional view after cam assembling；
Fig. 4 is Fig. 3 left views.
Embodiment
Blade of wind-driven generator Y is arranged on main shaft Z；Camshaft a one end is arranged on blade of wind-driven generator Y through screw
On, compartment of terrain is provided with cam ring b on camshaft a；Cam ring b contour curve is by circular arc b1 two long, circular arc b2 two short
And the long circular arc b1 and short circular arc b2 of connection straightway b3 is formed, long circular arc b1 and camshaft a are coaxial, straightway b3 with it is oval
Arc b1 and short circular arc b2 are tangent, and cam ring b is magnet ring and magnetic pole is radially arranged；End cap d is installed through screw on housing c, it is convex
Wheel shaft a is through bearing e on housing c side wall c3 and end cap d；On the inside of housing c upper wall c1 through screw be provided with suspension bracket f,
It is provided with the outside of base g, lower wall c2 through screw on the inside of lower wall c2 and is provided with through screw on the inside of balancing weight G, antetheca c4 and rear wall c5
Fixed magnet k is installed through screw；Suspension bracket f is fourchette structure, and suspension bracket f prong f1 is placed between two axially adjacent cam ring b,
Coil h is inlaid with prong f1, coil h diameter is less than cam ring b radial thickness；Base g boss g1 both sides are all through spiral shell
Nail and briquetting j are provided with transducer i, and transducer i is to be bonded the PZT (piezoelectric transducer) formed, substrate i1 by substrate i1 and piezoelectric patches i2
Close to boss g1 installations；Transducer i free ends are provided with the same of moving magnet m, moving magnet m and fixed magnet k and cam ring b through screw
Property magnetic pole is mounted opposite.
Transducer i is flat construction, not occured bending and deformation when moving magnet m is in contact with the long circular arc b1 on cam ring b,
Transducer i bending deformation quantity is maximum when transducer i free ends are in contact with fixed magnet k, and now maximum pressure should on piezoelectric patches i2
Power is less than its allowable value, transducer i deflection is less than its allowable value, and transducer i deflection allowable passes through below equation meter
Calculate, i.e.,：Wherein：B=1- α+α β, A=α4
(1-β)2-4α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep,
hmIt is respectively substrate i1 thickness and transducer i gross thickness with H, EmAnd EpRespectively substrate i1 and piezoelectric patches i2 Young mould
Amount, k31WithThe respectively electromechanical coupling factor and permissible compression stress of piezoceramic material, L are transducer i length.
During work, i.e., when blade of wind-driven generator Y drives camshaft a and cam ring b to be rotated with generator shaft Z
When, housing c and transducer i opposing cam rings b are rotated, so that position relationship and active force between moving magnet m and cam ring b
Change：Transducer i deflection is minimum when long circular arc b1 on cam ring b is relative with moving magnet m, and cam ring b, which is rotated, to be made
Transducer i deflection starts to increase when straightway b3 on cam ring b is relative with moving magnet m, treats the short circular arc on cam ring b
Compression when b2 is relative with moving magnet m on transducer i bending deformation quantity and piezoelectric patches i2 is maximum；Hereafter, transducer i change
Compression on shape amount and piezoelectric patches i2 rotates with cam ring b to be started to be gradually reduced, to moving magnet m it is relative with long circular arc b1 when change
Compression on energy device i deflection and piezoelectric patches i2 minimizes, and so far completes an Energizing cycle.Above-mentioned cam ring b with
In transducer i relative rotational motions, compression converts mechanical energy into during alternately increasing and reduce on piezoelectric patches i2
Electric energy, this process are piezo-electric generating；Meanwhile coil h and cam ring b also relatively rotates, during coil h cutting magnetic lines
Electric energy is converted mechanical energy into, this process is Electromagnetic generation.
Claims (1)
- A kind of 1. non-contact gyromagnet excitation hanging energy accumulator, it is characterised in that：Blade of wind-driven generator is arranged on main shaft, cam Axle one end is on blade of wind-driven generator, and compartment of terrain is provided with cam ring on camshaft；The contour curve of cam ring is by two Long circular arc, two short circular arcs and the straightway composition for connecting long circular arc and short circular arc, long circular arc and camshaft are coaxial, straightway Tangent with long circular arc and short circular arc, cam ring is magnet ring and magnetic pole is radially arranged；End cap is housed, camshaft is through bearing on housing In the side wall of housing and end cap；It is equipped with the inside of the upper wall of housing equipped with suspension bracket, lower wall inner side equipped with base, lower wall outside Fixed magnet is housed on the inside of balancing weight, antetheca and rear wall；Suspension bracket is fourchette structure, and the prong of suspension bracket is placed in two axially adjacent cams Between ring, coil is inlaid with prong；The boss both sides of base are equipped with transducer, transducer be by substrate and piezoelectric piece bonding and Into PZT (piezoelectric transducer), substrate close to boss install；Transducer free end is equipped with moving magnet；Moving magnet with it is oval on cam ring Transducer is flat construction when arc is in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059622.7U CN207200552U (en) | 2017-08-17 | 2017-08-17 | A kind of non-contact gyromagnet excitation hanging energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721059622.7U CN207200552U (en) | 2017-08-17 | 2017-08-17 | A kind of non-contact gyromagnet excitation hanging energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207200552U true CN207200552U (en) | 2018-04-06 |
Family
ID=61794611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721059622.7U Expired - Fee Related CN207200552U (en) | 2017-08-17 | 2017-08-17 | A kind of non-contact gyromagnet excitation hanging energy accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207200552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3621187A1 (en) * | 2019-02-12 | 2020-03-11 | Ventus Engineering GmbH | Hybrid energy harvesting unit and use hereof |
| CN112332697A (en) * | 2020-10-21 | 2021-02-05 | 长春工业大学 | Rotary cam piezoelectric power generation device |
-
2017
- 2017-08-17 CN CN201721059622.7U patent/CN207200552U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3621187A1 (en) * | 2019-02-12 | 2020-03-11 | Ventus Engineering GmbH | Hybrid energy harvesting unit and use hereof |
| WO2020164756A1 (en) * | 2019-02-12 | 2020-08-20 | Ventus Engineering GmbH | Hybrid energy harvesting unit and use hereof |
| CN112332697A (en) * | 2020-10-21 | 2021-02-05 | 长春工业大学 | Rotary cam piezoelectric power generation device |
| CN112332697B (en) * | 2020-10-21 | 2022-01-28 | 长春工业大学 | Rotary cam piezoelectric power generation device |
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| 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: 20180406 Termination date: 20180817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |