CN102205309A - Hydraulic pressurizing device for high-power radial compound ultrasonic tube - Google Patents
Hydraulic pressurizing device for high-power radial compound ultrasonic tube Download PDFInfo
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- CN102205309A CN102205309A CN2010105615377A CN201010561537A CN102205309A CN 102205309 A CN102205309 A CN 102205309A CN 2010105615377 A CN2010105615377 A CN 2010105615377A CN 201010561537 A CN201010561537 A CN 201010561537A CN 102205309 A CN102205309 A CN 102205309A
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Abstract
A problem to be solved by the invention is to provide a hydraulic pressurizing device for a high-power radial compound ultrasonic tube. The device comprises an internal hydraulic expanding mechanism which supplies a radial pre-stressing force to a radial compound piezoelectric ultrasonic vibration system in a hydraulic pressurizing manner. In order to solve the technical problem, a structure of filling a metal thin-wall hydraulic tube with hydraulic oil is adopted in the device, the pressure in a sealed thin-wall hydraulic tube is adjusted by rotating a hydraulic pressurizing screw rod, and an external metal circular tube jacket is used for supplying an inner and outer bidirectional radial pre-stressing force to a piezoelectric ceramic wafer loop set in an interlayer. With such a structure, compared with the prior art, the device can be more conveniently used and can generate more uniform radial pre-stressing force. The piezoelectric ceramic wafer loop set is difficult to damage in the working process and the whole service life of the product is prolonged.
Description
Technical field
The present invention relates to spiral pressure regulation Hydraulic Field, particularly a kind of being applicable in the high-power radially composite piezoelectric ultrasonic vibration system applies the prestressed hydraulic pulldown of even radial dilatation.
Background technology
In composite piezoelectric ultrasonic transducer correlation technique, it is a kind of very crucial technology that the piezo ceramic element of compound piezoelectric ultrasonic transducer system is applied enough big evenly compressive pre-stress.Piezoelectric ceramics is a kind of fragile material, and its tensile strength is poor, and compression strength is bigger, and it is applied enough big compressive pre-stress can significantly improve its mechanical output limit, thereby can significantly improve the power density and the power capacity of piezoelectric ceramics.It is by high-strength bolt and front and back metal cover board the piezoelectric ceramics heap to be applied enough big compressive pre-stress that engineering applications such as present Ultrasonic machining are used very wide high-power vertical composite sandwich formula piezoelectric ultrasonic transducer (vertically compound bar), its power capacity generally can improve 2 to 3 times, and can significantly improve performance indications such as the mechanical q-value of PZT (piezoelectric transducer) and electromechanical conversion efficiency.
In recent years along with the development of power ultrasonic in the liquid handling technical field, one class swept area is big, radiation efficiency is high and radial radiation is uniformly tubular or the clavate ultrasonic transducer grows up, and more and more wider in the application in environmental protection industry fields such as ultrasonic cleaning, degraded and sewage disposal, and demonstrate great vitality and application prospect.Yet the tubular in the composite piezoelectric ultrasonic vibration system radially (or annular) piezo ceramic element is applied radially compressive pre-stress more than vertical compound vibration systems complexity, gratifying solution is not arranged always, the most frequently used method is to adopt the method for expanding with heat and contract with cold to assemble at present, but this method often makes prestressing force size and uniformity be difficult to control, and needs very high forming materials and processing technology.This is to restrict this class radially composite piezoelectric supersonic transducer power capacity and further " bottleneck " that improves of performance at present.Solved, radially the composite piezoelectric ultrasonic transducer is at ultrasonic engineering will to make this class, and particularly the application in energy-conservation environmental protection field such as liquid ultrasonic treatment obtains to break through.
In the prior art, the patent No. is ZL 200520075667.4, name is called the utility model patent of " large power supersonic transducer ", adopt the multistage mechanical vertically serial connection in short pipe PZT (piezoelectric transducer) unit that has the metal stressed shell to form, this transducer radial radiation is more even, but following deficiency is arranged:
(1), the metal stressed shell only applied the unidirectional radially prestressing force of ecto-entad to the piezoelectric ceramic circular tube of its inside, piezoelectric ceramic tube inside is air or oil-filled.In view of the radial crushing strength of piezoelectric ceramic tube is lower, therefore can not apply too big radially compressive pre-stress, otherwise piezoelectric ceramic tube can be broken to it.Owing to can not apply enough big construction pre-stress to the piezoelectricity pipe, the power capacity of this transducer is restricted, and power density is less.
(2), the metal shell of this transducer is double-decker, and is oil-filled in the middle of the layer.According to the boundary reflection and the transmission theory of sound wave, sound wave can cause bigger acoustic energy propagates loss by metal and the very big interlayer of these two kinds of acoustic characteristic resistance differences of oil the time, thereby the acoustic radiation efficiency of transducer is reduced.
The applicant has submitted the patent of invention of a " a kind of large power composite ultraphonic pipe " on September 10th, 2009, and application number is 200910102269.X, and disclosed on February 17th, 2010.The applicant thinks that this patent has solved key technical problem related in the prior art.But in actual use, we find still to exist the inconvenience in some uses.Applying radially prestressing force such as the piezo ceramic element to this composite ultraphonic pipe inside realizes to collaborative tapered cup nut of screwed pipe and curved metal lead-in by regulating its inner counter.Owing to larger axis is arranged to frictional force between tapered cup nut and the curved metal lead-in, make inner expanding prestressing mechanism that the piezoelectric ceramics unit is produced radial dilatation prestressing force greatly and uniformly in pressure process, pressure process quite wastes time and energy.In case application of force adjusting is inhomogeneous in the assembling implementation process, can produce considerable influence to the overall performance of transducer system.Therefore, we need improve this structure, to overcome its shortcoming.
Summary of the invention
The problem to be solved in the present invention provides a kind of hydraulic pulldown of high-power radially composite ultraphonic pipe, and this device comprises that the mode that adopts hydraulic pressurization provides radially prestressed internal hydraulic pressure expanding mechanism for the radially compound piezoelectric ultrasonic vibration of class system.Compared with prior art not only use more conveniently by such structure the present invention, and the radially prestressing force that produces is more even.
For solving the problems of the technologies described above, the technical scheme that the present invention takes is: a kind of high-power radially composite ultraphonic pipe, comprise the metal circular tube overcoat, plurality of sections cylinder piezoelectric ceramics loop group is contained in its inside, cylinder piezoelectric ceramics loop group inside is provided with the metal thin-wall hydraulic tube, described metal thin-wall hydraulic tube one end is provided with the sheath that is fixed on metal thin-wall hydraulic tube bottom by hold-down ring, equally distributed standing screw is passed in metal thin-wall hydraulic tube inside, hold-down ring is connected by the capping of standing screw with the metal thin-wall hydraulic tube other end, standing screw is fixed in the capping by the capping nut, the central authorities of described capping are fixed with screw bolt seat by screw, establish screw thread in the screw bolt seat, the screw bolt seat that the hydraulic pressurization screw rod passes capping central authorities feeds in the metal thin-wall hydraulic tube, is arranged with sealing ring between screw bolt seat and the hydraulic pressurization screw rod.
Preferably, the quantity of standing screw is at least 3, and parallel symmetrically being distributed in the metal thin-wall hydraulic tube.Described standing screw can axially evenly compress the metal thin-wall hydraulic tube, plays axial strangulation effect, and the metal thin-wall hydraulic tube can produce effective radial dilatation deflection to guarantee to pressurize afterwards, and reduces the axial deflection of metal thin-wall hydraulic tube.
Preferably, described sheath and capping nut are provided with the inclined-plane near cylinder piezoelectric ceramics loop group one side, and and cylinder piezoelectric ceramics loop group between leave the gap.Such structure avoids sheath or capping nut to make the interior outer cylinder electric pole short circuit of cylinder piezoelectric ceramics loop group.
Preferably, described every section cylinder piezoelectric ceramics loop group along the circumferential direction is arranged in annular by several geometric parameters cylinder piezoelectric ceramics blade unit consistent with performance, be provided with insulation vibration isolation thin slice between adjacent two cylinder piezoelectric ceramics blade units in described every section cylinder piezoelectric ceramics loop group, and bond together with the cylinder piezoelectric ceramics blade unit on epoxy resin and both sides, described each cylinder piezoelectric ceramics blade unit is the thickness polarization, its inner cylinder is draped over one's shoulders silver and is positive electrode, outer cylinder drapes over one's shoulders silver and is negative electrode, be that electricity is in parallel between each cylinder piezoelectric ceramics blade unit in each cylinder piezoelectric ceramic ring group, plurality of sections cylinder piezoelectric ceramics loop group embeds in the metal circular tube overcoat vertically, the metal circular tube outer casing internal diameter is consistent with its inner cylinder piezoelectric ceramics loop group external diameter, closely cooperates with realization.Each cylinder piezoelectric ceramics loop group is formed by a plurality of cylinder piezoelectric ceramic piece unit combination.Under such structure, can bear bigger radial deformation and prestressing force and not broken than single piezoelectric ceramic circular tube
Preferably, comprise at least 3 cylinder piezoelectric ceramics blade units in the described cylinder piezoelectric ceramics loop group.Article 3, cylinder piezoelectric ceramics blade unit is to realize evenly disperseing the inner stressed minimum necessary amount of cylinder piezoelectric ceramics blade unit.
Preferably, comprise 8 cylinder piezoelectric ceramics blade units in the described cylinder piezoelectric ceramics loop group.Include 8 cylinder piezoelectric ceramics blade units in the cylinder piezoelectric ceramic ring group of the invention process as pressurized object, article 8, it is stressed that cylinder piezoelectric ceramics blade unit can evenly disperse cylinder piezoelectric ceramics blade unit inside, guarantee stressed evenly, help prolonging life of product.
Preferably, be provided with insulation vibration isolation circle between the two adjacent groups cylinder piezoelectric ceramics loop group.Insulation vibration isolation circle is to playing the effect of vertical decoupling vibration isolation between the two adjacent groups cylinder piezoelectric ceramics loop group.
Preferably, described metal circular tube overcoat, its outer surface axially is processed with some uniformly-spaced ring-type trapezoidal grooves along the metal circular tube overcoat, and described trapezoidal groove bottom is narrower, and the bossing vertical section between adjacent two grooves is truncated cone shape.Described truncated cone shape convex top is narrower, rises and amplifies ultrasonic amplitude and cumulative action, can improve the uniformity that the near-field thermal radiation sound field distributes simultaneously, effectively eliminates acoustic radiation blind area, near field of the prior art, makes the product task performance significantly improve.
Preferably, described metal thin-wall hydraulic tube inside is filled with hydraulic oil or other transformer oil and non-combustible oil.Its external diameter is consistent with cylinder piezoelectric ceramics loop group internal diameter, does not cooperate for the zero clearance between the two when pressurizeing.
Preferably, described metal circular tube overcoat one end is spherical, and the other end is tightened in the sealing ring by the outer ring capping.The metal circular tube overcoat on spherical top can play the effect that reduces radially to clamp down on by self structure, and is simultaneously also very attractive in appearance.And the outer ring capping is tightened on a sealing effectiveness in the sealing ring, and can conveniently rotate the hydraulic pressurization screw rod to adjust the pressure in the pipe in the thin-walled by opening the outer ring capping.
The fluid pressure type ULTRASONIC COMPLEX rod advantage of technique scheme is: adopt the metal thin-wall hydraulic tube to be full of the structure of hydraulic oil, by the pressure in the rotating hydraulic pressurization screw rod adjustment thin-walled hydraulic tube, and collaborative external metallization pipe overcoat applies inside and outside two-way radially compressive pre-stress to the piezoelectric ceramics loop group in the interlayer, so not only operating like this is easy and convenient, and make that pressurization is very even, piezoelectric ceramics loop group is not fragile in the course of the work, has prolonged the whole service life of product.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the overall structure figure of a kind of high-power radially composite ultraphonic pipe of the present invention and hydraulic pulldown.
Fig. 2 is the cross-sectional schematic diagram of a kind of high-power radially composite ultraphonic pipe of the present invention and hydraulic pulldown.
Fig. 3 is the overall structure figure of the cylinder piezoelectric ceramics loop group of a kind of high-power radially composite ultraphonic pipe of the present invention.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of hydraulic pulldown of high-power radially composite ultraphonic pipe, comprise metal circular tube overcoat 9, plurality of sections cylinder piezoelectric ceramics loop group 8 is contained in its inside, cylinder piezoelectric ceramics loop group 8 inside are provided with metal thin-wall hydraulic tube 10, do not cooperate for the zero clearance between the two when pressurizeing.Described metal thin-wall hydraulic tube 10 1 ends are provided with the sheath 11 that is fixed on metal thin-wall hydraulic tube 10 bottoms by hold-down ring 14, hold-down ring 14 is connected with the capping 4 of the other end by equally distributed standing screw 12, standing screw 12 is fixed in the capping 4 by capping nut 5, the central authorities of described capping 4 are fixed with screw bolt seat 2 by screw 3, establish screw thread in the screw bolt seat 2, the screw bolt seat 2 that hydraulic pressurization screw rod 1 passes capping 4 central authorities feeds in the metal thin-wall hydraulic tube 10, is with high-pressure seal ring 6 between screw bolt seat 2 and the hydraulic pressurization screw rod 1.The quantity of standing screw 12 is at least 3, and parallel equably being distributed in the metal thin-wall hydraulic tube 10.Described sheath 11 and capping nut 5 is provided with the inclined-plane near cylinder piezoelectric ceramics loop group 8 one sides, and and cylinder piezoelectric ceramics loop group 8 between leave the gap.Described every section cylinder piezoelectric ceramics loop group 8 along the circumferential direction is arranged in annular by several geometric parameters cylinder piezoelectric ceramics blade unit 81 consistent with performance, be provided with insulation vibration isolation thin slice 82 between adjacent two cylinder piezoelectric ceramics blade units 81 in described every section cylinder piezoelectric ceramics loop group 8, and together with adhering with epoxy resin, described each cylinder piezoelectric ceramics blade unit 81 is the thickness polarization, its inner cylinder is draped over one's shoulders silver and is positive electrode, outer cylinder drapes over one's shoulders silver and is negative electrode, be that electricity is in parallel between each cylinder piezoelectric ceramics blade unit 81 in each cylinder piezoelectric ceramics loop group 8, plurality of sections cylinder piezoelectric ceramics loop group 8 embeds in the metal circular tube overcoat 9 vertically, metal circular tube overcoat 9 inner cylinder radiuses are consistent with each cylinder piezoelectric ceramics loop group 8 outer radius of its inside, closely cooperate with realization.Comprise at least 3 cylinder piezoelectric ceramics blade units 81 in the described cylinder piezoelectric ceramics loop group 8.Be provided with insulation vibration isolation circle 15 between the two adjacent groups cylinder piezoelectric ceramics loop group 8.Described metal circular tube overcoat 9, its outer surface axially is processed with some uniformly-spaced ring-type trapezoidal grooves along metal circular tube overcoat 9.Described metal thin-wall hydraulic tube 10 inside are filled with non-combustible oil, and non-combustible oil is hydraulic oil or other transformer oil, also can be castor oil.Described metal circular tube overcoat 9 one ends are spherical, and the other end is tightened on by outer ring capping 19 and plays sealing effectiveness in the sealing ring 20.
The specific embodiment of the present invention still and the applicant similar substantially in the patent of invention of " a kind of large power composite ultraphonic pipe " of first to file.Just the combining structure of metal thin-wall hydraulic tube 10 and hydraulic pressurization screw rod 1 has been replaced the prestressing force expansion structure in original technology, make that the pressure that produces is more even, reduce the friction of inside in the course of work simultaneously, improved the precision of pressurization and the efficient of pressurization.Outer ring capping 19 as long as outward winding during use on the metal circular tube overcoat 9 just can directly be regulated hydraulic pressurization screw rod 1.And to the adjusting of hydraulic pressurization screw rod 1 almost by realizing that manually resistance is very little.Can be in the hydraulic pressurization screw rod 1 continuous precession metal thin-wall hydraulic tube 10 to producing very uniform expansionary force on the tube wall of metal thin-wall hydraulic tube 10.The hold-down ring 14 of metal thin-wall hydraulic tube 10 1 ends is connected with the capping 4 of the other end by equally distributed standing screw 12, standing screw 12 is fixed in the capping 4 by capping nut 5, so just can guarantee that pressurization back metal thin-wall hydraulic tube 10 can produce effective radial-deformation, and reduce the axial deflection of metal thin-wall hydraulic tube 10.Metal thin-wall hydraulic tube 10 produces enough greatly radially compressive pre-stress with the metal circular tube overcoat to cylinder piezoelectric ceramic piece ring group 8, thereby has significantly improved the mechanical output limit of piezoelectric ceramic piece, and significantly improves its power capacity.The structure of cylinder piezoelectric ceramics loop group 8 is also improved, the cylinder piezoelectric ceramics blade unit 81 consistent with performance by several geometric parameters along the circumferential direction is arranged in annular, be provided with insulation vibration isolation thin slice 82 between adjacent two cylinder piezoelectric ceramics blade units 81 in described every section cylinder piezoelectric ceramics loop group 8, and together with adhering with epoxy resin, described each cylinder piezoelectric ceramic piece 81 is the thickness polarization, its inner cylinder is draped over one's shoulders silver and is positive electrode, outer cylinder drapes over one's shoulders silver and is negative electrode, be that electricity is in parallel between each cylinder piezoelectric ceramics blade unit 81 in each cylinder piezoelectric ceramics loop group 8, plurality of sections cylinder piezoelectric ceramics loop group 8 embeds in the metal circular tube overcoat 9 vertically, metal circular tube overcoat 9 inner cylinder radiuses are consistent with each cylinder piezoelectric ceramics loop group 8 outer radius of its inside, closely cooperate with realization.So not only cooperate closely, and stressed in the course of the work also more even, more help the radial propagation of acoustic energy in tube wall.So not only operating like this is easy and convenient, and makes that pressurization is very even, and piezoelectric ceramics loop group is not fragile in the course of the work, has prolonged the whole service life of product.
Described metal circular tube overcoat 9, its outer surface axially is processed with some uniformly-spaced ring-type trapezoidal grooves along metal circular tube overcoat 9, and described trapezoidal groove bottom is narrower, and the bossing vertical section between adjacent two grooves is truncated cone shape.Described truncated cone shape convex top is narrower, has amplitude to amplify and cumulative action.The ultrasonic wave radiant energy that its both sides prism produces covers the near field near metal circular tube overcoat 9, has solved the problem that there is the blind area in ultrasonic wave emission in the prior art.
Claims (10)
1. the hydraulic pulldown of a high-power radially composite ultraphonic pipe, comprise metal circular tube overcoat (9), plurality of sections cylinder piezoelectric ceramics loop group (8) is contained in its inside, it is characterized in that: cylinder piezoelectric ceramics loop group (8) inside is provided with metal thin-wall hydraulic tube (10), described metal thin-wall hydraulic tube (10) one ends are provided with the sheath (11) that is fixed on metal thin-wall hydraulic tube (10) bottom by hold-down ring (14), equally distributed standing screw (12) is passed in metal thin-wall hydraulic tube (10) inside, hold-down ring (14) is connected by the capping (4) of standing screw (12) with metal thin-wall hydraulic tube (10) other end, standing screw (12) is fixed in the capping (4) by capping nut (5), the central authorities of described capping (4) are fixed with screw bolt seat (2) by screw (3), screw bolt seat is established screw thread in (2), the screw bolt seat (2) that hydraulic pressurization screw rod (1) passes capping (4) central authorities feeds in the metal thin-wall hydraulic tube (10), is with sealing ring (6) between screw bolt seat (2) and the hydraulic pressurization screw rod (1).
2. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1 is characterized in that: the quantity of standing screw (12) is at least 3, and parallel equably being distributed in the metal thin-wall hydraulic tube (10).
3. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1, it is characterized in that: described sheath (11) and capping nut (5) are provided with the inclined-plane near cylinder piezoelectric ceramics loop group (8) one sides, and and cylinder piezoelectric ceramics loop group (8) between leave the gap.
4. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1, it is characterized in that: described every section cylinder piezoelectric ceramics loop group (8) along the circumferential direction is arranged in annular by several cylinder piezoelectric ceramics blade units (81), be provided with insulation vibration isolation thin slice (82) between adjacent two cylinder piezoelectric ceramics blade units (81) in described every section cylinder piezoelectric ceramics loop group (8), and together with adhering with epoxy resin, the all thickness polarization of described each cylinder piezoelectric ceramics blade unit (81), its inner cylinder is draped over one's shoulders silver and is positive electrode, outer cylinder drapes over one's shoulders silver and is negative electrode, be that electricity is in parallel between each cylinder piezoelectric ceramics blade unit (81) in each cylinder piezoelectric ceramics loop group (8), plurality of sections cylinder piezoelectric ceramics loop group (8) embeds in the metal circular tube overcoat (9) vertically, metal circular tube overcoat (9) inner cylinder radius is consistent with each cylinder piezoelectric ceramics loop group (8) outer radius of its inside, closely cooperates with realization.
5. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1 is characterized in that: comprise at least 3 cylinder piezoelectric ceramics blade units (81) in the described cylinder piezoelectric ceramics loop group (8).
6. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 5 is characterized in that: comprise 8 cylinder piezoelectric ceramics blade units (81) in the described cylinder piezoelectric ceramics loop group (8).
7. as the hydraulic pulldown of the wherein arbitrary described a kind of high-power radially composite ultraphonic pipe of claim 4-6, it is characterized in that: be provided with insulation vibration isolation circle (15) between the two adjacent groups cylinder piezoelectric ceramics loop group (8).
8. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1, it is characterized in that: described metal circular tube overcoat (9) outer surface is processed with some uniformly-spaced ring-type trapezoidal grooves vertically, described trapezoidal groove bottom is narrower, and the bossing vertical section between adjacent two grooves is truncated cone shape.
9. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1 is characterized in that: described metal thin-wall hydraulic tube (10) inside is filled with non-combustible oil, and non-combustible oil is hydraulic oil.
10. the hydraulic pulldown of a kind of high-power radially composite ultraphonic pipe as claimed in claim 1 is characterized in that: described metal circular tube overcoat (9) one ends are spherical, and the other end is tightened on by outer ring capping (19) and plays sealing effectiveness in the sealing ring (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561537 CN102205309B (en) | 2010-11-24 | 2010-11-24 | Hydraulic pressurizing device for high-power radial compound ultrasonic tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010561537 CN102205309B (en) | 2010-11-24 | 2010-11-24 | Hydraulic pressurizing device for high-power radial compound ultrasonic tube |
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| CN102205309A true CN102205309A (en) | 2011-10-05 |
| CN102205309B CN102205309B (en) | 2013-08-07 |
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| CN 201010561537 Expired - Fee Related CN102205309B (en) | 2010-11-24 | 2010-11-24 | Hydraulic pressurizing device for high-power radial compound ultrasonic tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970953A (en) * | 2018-07-28 | 2018-12-11 | 中北大学 | A kind of high-power three-dimensional vibrating ultrasonic radiator |
| CN110027925A (en) * | 2019-05-29 | 2019-07-19 | 马榕彬 | Feeding device is used in a kind of production of metal nano powder |
| CN110355084A (en) * | 2019-07-17 | 2019-10-22 | 中北大学 | Axial ultrasonic energy converter |
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| CN2719417Y (en) * | 2004-08-27 | 2005-08-24 | 四川创源科技有限责任公司 | Ultrasonic transducer |
| CN101121165A (en) * | 2007-09-04 | 2008-02-13 | 浙江师范大学 | Piezoelectric ultrasonic transducer |
| CN201410461Y (en) * | 2009-06-08 | 2010-02-24 | 浙江师范大学 | Circular tube type piezoelectricity ultrasound energy converter |
| CN202162135U (en) * | 2010-11-24 | 2012-03-14 | 浙江师范大学 | Hydraulic pressurizing device for bar-shaped ultrasonic composite piezoelectric transducer |
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2010
- 2010-11-24 CN CN 201010561537 patent/CN102205309B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6147932A (en) * | 1999-05-06 | 2000-11-14 | Sandia Corporation | Acoustic transducer |
| CN2719417Y (en) * | 2004-08-27 | 2005-08-24 | 四川创源科技有限责任公司 | Ultrasonic transducer |
| CN101121165A (en) * | 2007-09-04 | 2008-02-13 | 浙江师范大学 | Piezoelectric ultrasonic transducer |
| CN201410461Y (en) * | 2009-06-08 | 2010-02-24 | 浙江师范大学 | Circular tube type piezoelectricity ultrasound energy converter |
| CN202162135U (en) * | 2010-11-24 | 2012-03-14 | 浙江师范大学 | Hydraulic pressurizing device for bar-shaped ultrasonic composite piezoelectric transducer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970953A (en) * | 2018-07-28 | 2018-12-11 | 中北大学 | A kind of high-power three-dimensional vibrating ultrasonic radiator |
| CN110027925A (en) * | 2019-05-29 | 2019-07-19 | 马榕彬 | Feeding device is used in a kind of production of metal nano powder |
| CN110027925B (en) * | 2019-05-29 | 2024-04-09 | 纳华(宁波)新材料科技有限公司 | Loading attachment is used in metal nano powder production |
| CN110355084A (en) * | 2019-07-17 | 2019-10-22 | 中北大学 | Axial ultrasonic energy converter |
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