CN204200999U - A kind of phonon crystal vibration-reduction gear - Google Patents
A kind of phonon crystal vibration-reduction gear Download PDFInfo
- Publication number
- CN204200999U CN204200999U CN201420575623.7U CN201420575623U CN204200999U CN 204200999 U CN204200999 U CN 204200999U CN 201420575623 U CN201420575623 U CN 201420575623U CN 204200999 U CN204200999 U CN 204200999U
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- circular hole
- gear
- wheel body
- phonon crystal
- gear wheel
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Abstract
The utility model discloses a kind of phonon crystal vibration-reduction gear, comprise gear wheel body and be arranged on gear wheel body central position for being connected connecting hole and the keyway of gear shaft, described gear wheel body is processed with multiple circular hole, damping column is filled with in circular hole, little for driving gear damping of the prior art, vibration and noise large wait deficiency, utilize the vibration in the frequency range of phonon crystal forbidden band or sound wave will be inhibited in crystal and propagate this principle, reduce the vibration noise in gear transmission process, and the utility model bearing capacity is large, structure is simple, easy to process, noise reduction is obvious, substantially the original structure of gear is not changed.
Description
Technical field
The utility model belongs to mechanical transmission fields, particularly relates to a kind of phonon crystal vibration-reduction gear.
Background technique
Along with the raising of everybody environmental protection consciousness; mechanical equipment vibration and comfort become one of important indicator evaluating its performance quality; vibration and impact are except causing larger noise; also have a strong impact on safety and the working life of equipment; mechanical transmission fields gear is widely used on various transmission device; as the equipment such as speed changer, speed reducer uses gear train all in a large number, develop a kind of gear structure that can reduce vibratory impulse and noise in gear transmission process of crucial importance for the equipment of low noise quality.
In recent years it is found that when elastic wave is at periodicity elastic composite Propagation, the phononic band gap of similar forbidden photon band can be produced, namely be in vibration in the frequency range of forbidden band or sound wave will be inhibited in crystal and propagate, and propose phonon crystal concept, in order to reduce gear vibration and noise, in design of gears, introduce a kind of so new structure of phonon crystal.Because the generation of noise is closely bound up with vibration, and vibration is propagated in media as well with the form of elastic wave usually, and the introducing of photonic crystal structure makes elastic wave band gaps can suppress the propagation vibrated, and namely reaches the object of noise reduction.
The patent of Chinese patent " ZL201310172335.7 " provides a kind of piezoelectric photonic crystal vibration-reduction gear, shaft-like phonon crystal is arranged on spoke place and is arranged symmetrically with relative to wheel hub by this patent, serve the object of vibration and noise reducing, the transformation of this gear mesh gear hub is comparatively large, is not suitable for heavy-duty gear Operation Conditions; The patent of Chinese patent " ZL201310011017.2 " provides a kind of phonon crystal vibration-reduction gear, gear wheel body adopts the metal ring mode alternate with nonmetallic ring and gear ring to nest together by this patent, serve good noise reduction, but there is heavy service strength deficiency equally, the shortcoming that metal ring technique alternate with nonmetallic ring is comparatively complicated.
Model utility content
The utility model provides a kind of phonon crystal vibration-reduction gear, little for driving gear damping of the prior art, vibration and noise large wait deficiency, utilize the vibration in the frequency range of phonon crystal forbidden band or sound wave will be inhibited in crystal and propagate this principle, reduce the vibration noise in gear transmission process, and the utility model bearing capacity is large, structure is simple, easy to process, noise reduction is obvious, does not substantially change the original structure of gear.
The utility model solves above-mentioned technical problem by following technical proposals: a kind of phonon crystal vibration-reduction gear, comprise gear wheel body and be arranged on gear wheel body central position for being connected connecting hole and the keyway of gear shaft, described gear wheel body is processed with multiple circular hole, in circular hole, is filled with damping column.
Further optimization, described circular hole is directly process the through hole on gear wheel body.
Further optimization, described circular hole adopts array structure to be arranged on gear wheel body.
Further optimization, the circular hole line number of described processing on gear wheel body is identical with columns and arbitrary neighborhood two arranges or between two row interval consistent.
Further optimization, all circular hole apertures of described gear wheel body processing are consistent, and hole number is more than 16.
Further optimization, the ratio of described all circular hole apertures of gear wheel body processing and the line space of array of circular apertures is between 0.2-0.4.
Further optimization, the aperture of described circular hole is the 3%-7% of rolling circle radius.
Further optimization, described damping column comprises high-damping rubber, polymer composites, copper or high damping alloy material.
Further optimization, be filled with a kind of in described circular hole or in different circular holes, alternately fill the damping column of multiple unlike material.
The utility model is by period profile circular hole on gear wheel body, the high damping material of one or more unlike materials is filled in circular hole, form the structure of phonon crystal, by the phonon-side bands of phonon crystal, and the Young's modulus of damping material controlling to fill, density of material and crystal constituent element aperture physical dimension, change the interval of band gap, reach the object of restraining target band Oscillation.
And the utility model period profile circular hole on gear wheel body, by adjusting the aperture of array of circular apertures and the number of ranks spacing and circular hole, the bearing capacity of adjustment gear, carry comparatively high pulling torque time can suitably reduce circular hole number and aperture, increase ranks spacing simultaneously, improve density ratio and the modular ratio of packing material and gear material.
Compared with prior art, a kind of phonon crystal vibration-reduction gear beneficial effect of the present utility model is: gear capacity of the present utility model is large, and structure of the present utility model is simple, easy to process, and noise reduction is obvious, does not substantially change the original structure of gear.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is sectional view of the present utility model.
In accompanying drawing: 1, gear wheel body, 2, circular hole, 3, damping column.
Embodiment
The technical solution of the utility model is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of phonon crystal vibration-reduction gear, comprise gear wheel body 1 and be arranged on gear wheel body 1 central position for being connected connecting hole and the keyway of gear shaft, described gear wheel body 1 is processed with multiple circular hole 2, described circular hole 2 is the through hole that employing array structure is arranged on gear wheel body 1, circular hole 2 line number on gear wheel body 1 is identical with columns and arbitrary neighborhood two arranges or between two row interval consistent, all circular holes 2 aperture that gear wheel body 1 is processed is consistent, damping column 3 is filled with in circular hole 2, damping column 3 is by high-damping rubber, polymer composites, one or more in copper or high damping alloy material are made.
Further optimization, the aperture of described circular hole 2 is the 3%-7% of rolling circle radius.
The utility model is by period profile circular hole 2 on gear wheel body 1, the high damping material of one or more unlike materials is filled in circular hole 2, form the structure of phonon crystal, by the phonon-side bands of phonon crystal, and the shear modulus of damping material controlling to fill, density of material and crystal constituent element aperture physical dimension, change the interval of band gap, reach the object of restraining target band Oscillation.
Phonon crystal gear of the present utility model by gear wheel body, gear face along the circumferential direction centerline axis parallel in the periodicity array of circular apertures of gear center hole shaft axis, and the high damping material composition be filled in periodicity array of circular apertures, there is obvious noise reduction.
Phonon crystal of the present utility model is made up of circular hole 2 array, interval between each row is consistent, columns is consistent with line number number, circular hole 2 is through hole and aperture is consistent, circular hole 2 is directly processed on gear wheel body 1 with the form of through hole, according to the physical dimension of gear, the aperture of magnitude of load adjustment circular hole 2 array and the number of ranks spacing and circular hole, circular hole number and aperture can be suitably reduced when gear bearing torque is larger, increase ranks spacing simultaneously, and improve density ratio and the modular ratio of packing material and gear material.
Phonon crystal gear of the present utility model can according to the suitable damping filling materials of the environmental selection of the moment of torsion of gear transmission and work, fill one or more in high-damping rubber, polymer composites, copper or high damping alloy material according to the frequency range interval selection of vibration damping, finally this gear is connected with gear shaft and is applied to corresponding gear train assembly.
Claims (8)
1. a phonon crystal vibration-reduction gear, it is characterized in that: comprise gear wheel body (1) and be arranged on gear wheel body (1) central position for being connected connecting hole and the keyway of gear shaft, described gear wheel body (1) is processed with multiple circular hole (2), in circular hole (2), is filled with damping column (3).
2. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: described circular hole (2) is directly process the through hole on gear wheel body (1).
3. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: described circular hole (2) adopts array structure to be arranged on gear wheel body (1).
4. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: circular hole (2) line number of described processing on gear wheel body (1) is identical with columns and arbitrary neighborhood two arranges or between two row interval consistent.
5. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: all circular holes (2) aperture that described gear wheel body (1) is processed is consistent, and circular hole number is more than 16.
6. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: the aperture of described circular hole (2) is the 3%-7% of rolling circle radius.
7. a kind of phonon crystal vibration-reduction gear according to claim 1, is characterized in that: described damping column (3) comprises high-damping rubber, polymer composites, copper or high damping alloy material.
8. a kind of phonon crystal vibration-reduction gear according to claim 7, it is characterized in that: in described circular hole (2), be filled with a kind of damping column (3), or the damping column (3) of unlike material is alternately filled in different circular holes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575623.7U CN204200999U (en) | 2014-09-30 | 2014-09-30 | A kind of phonon crystal vibration-reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575623.7U CN204200999U (en) | 2014-09-30 | 2014-09-30 | A kind of phonon crystal vibration-reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200999U true CN204200999U (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575623.7U Expired - Fee Related CN204200999U (en) | 2014-09-30 | 2014-09-30 | A kind of phonon crystal vibration-reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200999U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976318A (en) * | 2015-05-28 | 2015-10-14 | 南京航空航天大学 | Gear with noise reduction structure and gear transmission device of gear |
| CN105350403A (en) * | 2015-09-30 | 2016-02-24 | 同济大学 | Track board with periodic structure characteristics and track board damping system |
| CN107061260A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of three screw pump based on phonon crystal rotor |
| CN109027425A (en) * | 2018-07-26 | 2018-12-18 | 西安交通大学 | High damping alloy Meta Materials pipe vibration-damping denoising device |
| CN113236734A (en) * | 2021-05-11 | 2021-08-10 | 中国船舶重工集团公司第七0三研究所 | Variable-rigidity vibration reduction gear |
-
2014
- 2014-09-30 CN CN201420575623.7U patent/CN204200999U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976318A (en) * | 2015-05-28 | 2015-10-14 | 南京航空航天大学 | Gear with noise reduction structure and gear transmission device of gear |
| CN104976318B (en) * | 2015-05-28 | 2017-08-01 | 南京航空航天大学 | Gear and its gear drive with denoising structure |
| CN105350403A (en) * | 2015-09-30 | 2016-02-24 | 同济大学 | Track board with periodic structure characteristics and track board damping system |
| CN107061260A (en) * | 2017-06-28 | 2017-08-18 | 哈尔滨工程大学 | A kind of three screw pump based on phonon crystal rotor |
| CN109027425A (en) * | 2018-07-26 | 2018-12-18 | 西安交通大学 | High damping alloy Meta Materials pipe vibration-damping denoising device |
| CN113236734A (en) * | 2021-05-11 | 2021-08-10 | 中国船舶重工集团公司第七0三研究所 | Variable-rigidity vibration reduction gear |
| CN113236734B (en) * | 2021-05-11 | 2022-08-19 | 中国船舶重工集团公司第七0三研究所 | Variable-rigidity vibration reduction gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150311 Termination date: 20170930 |