CN106321775A - Common low speed vibration-attenuating gear based on local resonance-type photonic crystals - Google Patents
Common low speed vibration-attenuating gear based on local resonance-type photonic crystals Download PDFInfo
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- CN106321775A CN106321775A CN201510353223.0A CN201510353223A CN106321775A CN 106321775 A CN106321775 A CN 106321775A CN 201510353223 A CN201510353223 A CN 201510353223A CN 106321775 A CN106321775 A CN 106321775A
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- Prior art keywords
- resonant type
- phonon crystal
- locally resonant
- type phonon
- gear
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/12—Toothed members; Worms with body or rim assembled out of detachable parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
Abstract
The invention discloses a common low speed vibration-attenuating gear based on local resonance-type photonic crystals. The gear comprises gear teeth (1), spokes (2), a hub (3) and a keyway (4). The gear is characterized by further comprising local resonance-type photonic crystals (5). Each of the resonance-type photonic crystals (5) comprises a base body (6), an elastomer (7) and a mass block (8). The resonance-type photonic crystals (5) are symmetrically distributed on two end surfaces at the same radial size of each spoke (2), and the resonance-type photonic crystals (5) are uniformly arranged in the radial direction of each spoke (2) at equal intervals. According to the gear disclosed by the invention, an eccentric problem when the gear works is avoided without changing the structure of the gear, and the gear has a good vibration-attenuating effect of a low band gap and a wide band gap.
Description
Technical field
The invention belongs to gear antivibration area, particularly relate to a kind of common low speed based on locally resonant type phonon crystal
Vibration-reduction gear.
Background technology
Gear drive as one of mode modal in mechanical driving device, be widely used in boats and ships, automobile, metallurgy,
In all kinds of machinery equipments in the fields such as mine, building, petroleum drilling and mining.Some of which equipment is usually operated in the evil of low-speed heave-load
Under bad operating mode so that the common low-speed gear being arranged on equipment produces high vibration, the vibration of gear is by mounted thereto
Axle, bearing are delivered to the gear support such as bearing block and are eventually transferred into whole plant equipment, thus induce the mechanical breakdown of complexity,
Cause machinery to be not normally functioning, even cause serious security incident.
At present, the method reducing gear vibration mainly has two kinds: one to be to put prevention first, and i.e. ensures the parts such as gear
Machining accuracy and installation accuracy reduce abnormal vibrations and the fault generation of gear as far as possible；Two is to reduce tooth by technology such as vibration isolation
Vibration when wheel runs.
But, the gear vibration under the conditions of low-speed heave-load is difficult to intercept by gear support transmission, and above technology is difficult to reach
To good gear effectiveness in vibration suppression, the vibration control of gear is still the difficult problem preventing gear distress at present.
Summary of the invention
For above-mentioned prior art, the problem to be solved in the present invention is to provide a kind of without changing this body structure of gear, gear
The common low speed vibration-reduction gear that " band gap " position is adjustable from " band gap " width and is applicable under different working condition.
For solving the problems referred to above, the technical solution used in the present invention is as follows:
A kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal, including the gear teeth, spoke, wheel hub and keyway, also
Including locally resonant type phonon crystal, described locally resonant type phonon crystal includes matrix, elastomer and mass, described matrix
For on spoke with elastomer position at same radial dimension, described elastomer is circular, described elastomer one side closely patch
Being combined on matrix, another side fits tightly with mass, and described mass is circular, circle ring center's line of described mass with
The centrage of described elastomer annulus overlaps；Described locally resonant type phonon crystal two ends at same radial dimension on spoke
On face symmetrical, described locally resonant type phonon crystal is the most equidistantly evenly arranged at spoke, near wheel hub pacify
The circle diameter of the locally resonant type phonon crystal of dress is little, the circle diameter of the locally resonant type phonon crystal installed at the gear teeth
Greatly；Described locally resonant type phonon crystal can reach good effectiveness in vibration suppression when being provided with four, for making the effectiveness in vibration suppression more preferably can be
The number of locally resonant type phonon crystal is suitably increased in the allowed band of space on spoke；By adjusting locally resonant type phonon crystal
Installation site on spoke can make gear " band gap " position adjustable, by adjusting the footpath between neighborhood local-area resonance type phonon crystal
Gear " band gap " width can be made adjustable to distance.
Present invention low bandgap principle based on locally resonant type phonon crystal, can in conjunction with locally resonant type phonon crystal band gap
The characteristic adjusted realizes gear vibration damping in low frequency frequency range.The elastic wave that gear is subject in running is as locally resonant type
The elastic wave excitation of phonon crystal, when the frequency of elastic wave is in the bandgap range of locally resonant type phonon crystal, elastic wave
I.e. will be formed " forbidden band " by high degree even complete attenuation, thus reach the effect of vibration damping.According to gear material, chi
Difference very little, operating condition can design the various types of locally resonant type phonon crystals matched, thus the most right
In low-frequency range, the gear under various operating modes carries out vibration damping, it is achieved the beneficial effect of vibration and noise reducing.
Preferably, described elastomer can select elastomeric material to make, it is also possible to rigidity quite, elastic suitable other
Elastomeric material replaces.
Preferably, described mass can select tungsten material to make, it is also possible to uses density, elastic modelling quantity, Poisson's ratio suitable
Other metal material instead.
Preferably, described matrix and be arranged between the elastomer of matrix both sides, mass available seccotine and reach closely to paste
The effect closed.
Preferably, described matrix and be arranged between the elastomer of matrix both sides, mass can be by between in a circumferential direction etc.
The effect fitted tightly is reached away from 8 bolt-connections being uniformly arranged.
Compared with prior art, a kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal of the present invention have with
Lower beneficial effect:
Locally resonant type phonon crystal is incorporated in gear low frequency vibration damping by the present invention, low frequency forbidden band based on locally resonant type phonon crystal
Characteristic, radially arranges ring-type photonic crystal structure equally spacedly on the spoke of gear, reaches under the conditions of not changing gear structure
Effect to gear low frequency vibration damping.
Further, the present invention, according to the adjustability of locally resonant type phonon crystal forbidden energy gap Yu bandgap center position, can pass through
Distance between installation site and the adjacent phonon crystal of adjustment phonon crystal, to meet the gear damping requirements under different operating mode, has
There is the good effectiveness in vibration suppression of " low band gaps " and " broad stopband ".
Further, circular phonon crystal is arranged symmetrically on two end faces of gear spoke by the present invention, and it is high right to have
Title property, matches with rotary motion when shape, the working gear of spoke, will not cause eccentricity issues during working gear.
Accompanying drawing explanation
Fig. 1 is a kind of common low speed vibration-reduction gear detailed description of the invention one based on locally resonant type phonon crystal of the present invention
Cross section view；
Fig. 2 is that the front of a kind of common low speed vibration-reduction gear detailed description of the invention one based on locally resonant type phonon crystal of the present invention regards
Figure:
Fig. 3 is the section signal of a kind of common low speed vibration-reduction gear detailed description of the invention two based on locally resonant type phonon crystal of the present invention
Figure；
Fig. 4 is that the front of a kind of common low speed vibration-reduction gear detailed description of the invention two based on locally resonant type phonon crystal of the present invention regards
Figure.
Detailed description of the invention
Figures 1 and 2 show that the first of a kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal of the present invention
Plant embodiment.As depicted in figs. 1 and 2, a kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal includes wheel
Tooth 1, spoke 2, wheel hub 3 and keyway 4, locally resonant type phonon crystal 5.Described locally resonant type phonon crystal 5 includes base
Body 6, elastomer 7 and mass 8, described matrix 6 be on spoke 2 with the elastomer 7 position at same radial dimension,
Described elastomer 7 is in circular, and described elastomer 7 one side fits tightly on substrate 6 by seccotine, another side and quality
Block 8 is fitted tightly by seccotine, and circle ring center's line of described mass 8 overlaps with the centrage of described elastomer 7 annulus.
Described elastomer 7 can select elastomeric material to make, it is also possible to replaces with rigidity other suitable elastomeric materials suitable, elastic.
Described mass 8 can select tungsten material to make, it is also possible to density, elastic modelling quantity, other metal materials that Poisson's ratio is suitable
Replace.Described locally resonant type phonon crystal 5 is symmetrical on two end faces at same radial dimension on spoke 2, described
Locally resonant type phonon crystal 5 is provided with 4 and is the most equidistantly evenly arranged at spoke 2, pacifies at wheel hub 3
The circle diameter of the locally resonant type phonon crystal 5 of dress is little, the circle of the locally resonant type phonon crystal 5 installed at the gear teeth 1
Ring diameter is big.Can make gear " band gap " position can by adjusting the locally resonant type phonon crystal 5 installation site on spoke 2
Adjust, gear " band gap " width can be made adjustable by adjusting the radial distance between neighborhood local-area resonance type phonon crystal 5.
Fig. 3 and Fig. 4 shows the second of a kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal of the present invention
Plant embodiment.As shown in Figure 3 and Figure 4, unlike detailed description of the invention one, described matrix 6 be arranged on matrix 6
Can be coupled by 8 bolts 9 being the most equidistantly uniformly arranged between the elastomer 7 of both sides, mass 8 and reach
The effect fitted tightly.
Above in conjunction with accompanying drawing, embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art is possessed, it is also possible to do on the premise of without departing from present inventive concept
Go out various change.
Claims (5)
1. a common low speed vibration-reduction gear based on locally resonant type phonon crystal, including the gear teeth (1), spoke (2), wheel hub
(3) with keyway (4), it is characterised in that: also including locally resonant type phonon crystal (5), described locally resonant type phonon is brilliant
Body (5) includes matrix (6), elastomer (7) and mass (8), and described matrix (6) is on spoke (2) and elastomer
(7) position at same radial dimension, described elastomer (7) is in circular, and described elastomer (7) one side is closely pasted
Being combined on matrix (6), another side fits tightly with mass (8), described mass (8) in circular, described quality
Circle ring center's line of block (8) overlaps with the centrage of described elastomer (7) annulus；Described locally resonant type phonon crystal
(5) symmetrical on two end faces at the upper same radial dimension of spoke (2), described locally resonant type phonon crystal
(5) being the most equidistantly evenly arranged at spoke (2), the locally resonant type phonon installed near wheel hub (3) place is brilliant
The circle diameter of body (5) is little, and the circle diameter of locally resonant type phonon crystal (5) installed near the gear teeth (1) place is big；
Described locally resonant type phonon crystal (5) can reach good effectiveness in vibration suppression when being provided with four, for making effectiveness in vibration suppression more preferably may be used
The number of locally resonant type phonon crystal (5) is suitably increased in the allowed band of spoke (2) upper space；By adjusting local altogether
The vibration shape phonon crystal (5) installation site on spoke (2) can make gear " band gap " position adjustable, by adjusting adjacent office
Radial distance between territory resonance type phonon crystal (5) can make gear " band gap " width adjustable.
A kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal the most according to claim 1, its feature exists
In: described elastomer (7) can select elastomeric material to make, it is also possible to rigidity other suitable elastic materials suitable, elastic
Material replaces.
A kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal the most according to claim 1, its feature exists
In: described mass (8) can select tungsten material to make, it is also possible to suitable other of density, elastic modelling quantity, Poisson's ratio
Metal material instead.
A kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal the most according to claim 1, its feature exists
In: described matrix (6) and be arranged between the elastomer (7) of matrix (6) both sides, mass (8) available seccotine and reach
To the effect fitted tightly.
A kind of common low speed vibration-reduction gear based on locally resonant type phonon crystal the most according to claim 1, its feature exists
In: described matrix (6) and be arranged between the elastomer (7) of matrix (6) both sides, mass (8) can be by circumference
8 bolts (9) being equidistantly uniformly arranged on direction couple the effect reaching to fit tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353223.0A CN106321775A (en) | 2015-06-18 | 2015-06-18 | Common low speed vibration-attenuating gear based on local resonance-type photonic crystals |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510353223.0A CN106321775A (en) | 2015-06-18 | 2015-06-18 | Common low speed vibration-attenuating gear based on local resonance-type photonic crystals |
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| CN106321775A true CN106321775A (en) | 2017-01-11 |
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| CN201510353223.0A Pending CN106321775A (en) | 2015-06-18 | 2015-06-18 | Common low speed vibration-attenuating gear based on local resonance-type photonic crystals |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120383A (en) * | 2017-06-19 | 2017-09-01 | 哈尔滨工程大学 | A kind of phonon crystal vibration absorbing coupling |
| CN107289055A (en) * | 2017-07-12 | 2017-10-24 | 广东科学技术职业学院 | The magnetorheological vibration isolating suspension of three-dimensional tunable locally resonant type Meta Materials |
| CN108973518A (en) * | 2018-07-24 | 2018-12-11 | 南京林业大学 | A kind of shock-absorbing wheel based on phonon crystal |
| CN110594331A (en) * | 2019-09-19 | 2019-12-20 | 哈尔滨工程大学 | Hierarchical periodic structure metamaterial beam suitable for multi-frequency-band vibration reduction |
| CN112086083A (en) * | 2019-06-14 | 2020-12-15 | 中国科学院上海微系统与信息技术研究所 | Phononic crystal unit cell structure, phononic crystal device and preparation method thereof |
-
2015
- 2015-06-18 CN CN201510353223.0A patent/CN106321775A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120383A (en) * | 2017-06-19 | 2017-09-01 | 哈尔滨工程大学 | A kind of phonon crystal vibration absorbing coupling |
| CN107120383B (en) * | 2017-06-19 | 2018-12-11 | 哈尔滨工程大学 | A kind of phonon crystal vibration absorbing coupling |
| CN107289055A (en) * | 2017-07-12 | 2017-10-24 | 广东科学技术职业学院 | The magnetorheological vibration isolating suspension of three-dimensional tunable locally resonant type Meta Materials |
| CN107289055B (en) * | 2017-07-12 | 2019-12-31 | 广东科学技术职业学院 | Three-dimensional tunable local resonance type metamaterial magnetorheological vibration isolation support |
| CN108973518A (en) * | 2018-07-24 | 2018-12-11 | 南京林业大学 | A kind of shock-absorbing wheel based on phonon crystal |
| CN112086083A (en) * | 2019-06-14 | 2020-12-15 | 中国科学院上海微系统与信息技术研究所 | Phononic crystal unit cell structure, phononic crystal device and preparation method thereof |
| CN112086083B (en) * | 2019-06-14 | 2023-12-29 | 中国科学院上海微系统与信息技术研究所 | Phonon crystal unit cell structure, phonon crystal device and preparation method thereof |
| CN110594331A (en) * | 2019-09-19 | 2019-12-20 | 哈尔滨工程大学 | Hierarchical periodic structure metamaterial beam suitable for multi-frequency-band vibration reduction |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
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| WD01 | Invention patent application deemed withdrawn after publication |