CN105118493A - Longitudinal vibration converter achieving one-end inputs and multi-end outputs - Google Patents
Longitudinal vibration converter achieving one-end inputs and multi-end outputs Download PDFInfo
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- CN105118493A CN105118493A CN201510455028.9A CN201510455028A CN105118493A CN 105118493 A CN105118493 A CN 105118493A CN 201510455028 A CN201510455028 A CN 201510455028A CN 105118493 A CN105118493 A CN 105118493A
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- lever
- take
- compressional vibration
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Abstract
The invention relates to a longitudinal vibration converter achieving one-end inputs and multi-end outputs. The longitudinal vibration converter comprises an input rod, a transformation body and output rods which are sequentially connected. One transformation body end face opposed to the output rods has a planar or hemispherical structure. The outer surface of the transformation body is provided with at least three output rods. The output rods are uniformly distributed on the same circumference. The central shaft intersection point of the output rods is distributed on the central shaft of the input rod. The converter which can achieve longitudinal vibration inputs from one end and longitudinal vibration outputs from multiple directions further makes multiple output ends simultaneously act on a processed object. Large-area ultrasonic radiation applications on fluids are realized. The ultrasonic processing efficiency is improved. The production cost is lowered. The longitudinal vibration converter with a simple structural design is convenient to replace and dismount. Meanwhile, the number and the directions of the output rods can be flexibly selected according to real applications. The longitudinal vibration converter is suitably popularized and applied in a large scale.
Description
Technical field
The invention belongs to ultrasonic compressional Design of Vibration System technical field, particularly a kind of compressional vibration transducer realizing one end input multiterminal and export.
Background technology
Ultrasonic compressional vibration system comprises ultrasonic transducer, ultrasonic transformer and tool heads, in traditional a set of ultrasonic compressional vibration system, a transducer can only connect a set of ultrasonic transformer and tool heads, thus an output terminal also can only be had to process handling object, moreover, as in some application such as ultrasonic coagulation, ultrasonic de-bubble, ultrasonic dedusting, when needing convection cell to carry out high-power large area, the application of ultrasonic radiation in all directions, need the ultrasonic compressional vibration system that the many covers of application are traditional, make work efficiency be difficult to ensure, and energy consumption is larger.
Summary of the invention
For not enough existing for above-mentioned prior art, the invention provides and a kind ofly realize one end input, multiterminal export the compressional vibration transducer reaching multiple output terminal and process multiple handling object to increase work efficiency simultaneously.
The present invention realizes the technical scheme that above-mentioned purpose adopts: this compressional vibration transducer is made up of the input lever connected successively, conversion body and take-off lever, the end face that described conversion body is relative with take-off lever is plane or hemisphere face structure, the take-off lever arranged at its outside surface is at least 3, and each take-off lever to be circumferentially evenly distributed and its central shaft intersection point is distributed on the central shaft of input lever same;
The end of above-mentioned input lever meets: longitudinal force is the free boundary condition of zero; The end of take-off lever meets: longitudinal force, horizontal force and moment are the free boundary condition of zero; Meet in input lever and conversion body junction: vertical displacement, longitudinal force are continuous, displacement and the corner of conversion body and each take-off lever junction are corresponding continuous, and the longitudinal force converting body output terminal corresponds to longitudinal force, the transverse force sum of each take-off lever.
Diameter, the length of each take-off lever above-mentioned are equal.
The structure of above-mentioned conversion body is hemisphere, and the compressional vibration on each take-off lever is evenly distributed.
The length l of above-mentioned input lever
1with the length l of each take-off lever
3and conversion body is along the dimension l on compressional vibration direction of transfer
2sum meets: l
1+ l
2+ l
3< λ, the λ wavelength corresponding to the compressional vibration frequency of this compressional vibration transducer.
The diameter of above-mentioned input lever, the diameter of take-off lever and conversion body edge are all less than the quarter-wave corresponding to compressional vibration frequency of this compressional vibration transducer perpendicular to the dimension on compressional vibration direction of transfer.
The compressional vibration transducer realizing one end input multiterminal and export of the present invention, it is by an input lever and multiple take-off lever is coupling is integrated by conversion body, and multiple take-off lever is spatially uniformly distributed at the output end face of conversion body, compressional vibration in one end compressional vibration input multiple directions can be realized export, the object that multiple output terminal acts on handling object simultaneously can be reached, realize the application that large area convection cell carries out ultrasonic radiation, improve ultrasonic treatment effeciency, save production cost, in addition, structural design of the present invention is simple, change easy accessibility, number and the direction of take-off lever can also be selected flexibly according to practical application, be suitable for applying on a large scale.
Accompanying drawing explanation
Fig. 1 is the structural representation of compressional vibration transducer.
Embodiment
Now in conjunction with the accompanying drawings and embodiments technical scheme of the present invention is further described, but the present invention is not limited only to following enforcement situation.
Embodiment 1
As shown in Figure 1, the compressional vibration transducer that realized one end input multiterminal of the present embodiment export is connected and composed by input lever 1, conversion body 2 and take-off lever 3.
Wherein, input lever 1 is connected with conversion body 2, and the conversion body 2 of the present embodiment is a hemisphere structure, the radius r of its sphere
2=20mm, planar ends is connected with input lever 1, sphere end is connected with 3 take-off levers 3 by engagement thread, be respectively the first take-off lever, the second take-off lever, the 3rd take-off lever, 3 take-off levers 3 are circumferentially uniformly distributed same, and form the angle of 120 ° each other, on the central shaft that the central shaft intersection point of the first take-off lever, the second take-off lever, the 3rd take-off lever is distributed in input lever 1 and the angle theta formed between the central shaft of its central shaft and input lever 1 is 45 °.
Set three naturals system of coordinates, it is respectively along the axis direction of input lever 1, conversion body 2 and the first take-off lever, the second take-off lever, the 3rd take-off lever, and to convert the central shaft tie point of body 2 and each take-off lever 3 for initial point, the length of setting input lever 1 is l
1, diameter is r
1, conversion body 2 is l along the dimension on compressional vibration direction of transfer
2, i.e. l
2=r
2, the length of the first take-off lever, the second take-off lever and the 3rd take-off lever is l
3, radius is r
3.
The end of above-mentioned input lever 1 meets: longitudinal force is the free boundary condition of zero; The end of take-off lever 3 meets: longitudinal force, horizontal force and moment are the free boundary condition of zero; Meet in input lever 1 and conversion body 2 junction: vertical displacement, longitudinal force are continuous, displacement and the corner of conversion body 2 and each take-off lever 3 junction are corresponding continuous, and the longitudinal force converting body 2 output terminal corresponds to longitudinal force, the transverse force sum of each take-off lever 3.
ε
2|
x＝0＝ε
3|
x＝0cosθ+η
3|
x＝0sinθ(13)
ε
2|
x＝0＝ε
4|
x＝0cosθ+η
4|
x＝0sinθ(14)
ε
2|
x＝0＝ε
5|
x＝0cosθ+η
5|
x＝0sinθ(15)
F
l2|
x＝0＝F
l3|
x＝0cosθ+F
f3|
x＝0sinθ+F
l4|
x＝0cosθ+F
f4|
x＝0sinθ+F
l5|
x＝0cosθ+F
f5|
x＝0sinθ(16)
-ε
3|
x＝0sinθ+η
3|
x＝0cosθ＝0(17)
-ε
4|
x＝0sinθ+η
4|
x＝0cosθ＝0(18)
-ε
5|
x＝0sinθ+η
5|
x＝0cosθ＝0(19)
φ
3|
x＝0＝0(20)
φ
4|
x＝0＝0(21)
φ
5|
x＝0＝0(22)
Wherein, ε
1for the length travel of input lever 1, m; ε
2for converting the length travel of body 2, m;
ε
3, ε
4, ε
5the length travel of the first take-off lever, the second take-off lever, the 3rd take-off lever respectively, m;
η
3, η
4, η
5be respectively the transversal displacement of the first take-off lever, the second take-off lever, the 3rd take-off lever, m;
F
l1for the longitudinal force suffered by input lever 1, N; F
l2for the longitudinal force suffered by conversion body 2, N;
F
l3, F
l4, F
l5be respectively the first take-off lever, the second take-off lever, longitudinal force suffered by the 3rd take-off lever, N;
F
f3, F
f4, F
f5be respectively the first take-off lever, the second take-off lever, transverse force suffered by the 3rd take-off lever, N;
φ
3, φ
4, φ
5be respectively the first take-off lever, corner that the second take-off lever, the 3rd take-off lever are benchmark with respective central shaft;
M
3, M
4, M
5be respectively the first take-off lever, the second take-off lever, moment suffered by the 3rd take-off lever, Nm;
The present embodiment all selects 45# Steel material, its Young modulus E=21.6 × 10 with input lever 1, conversion body 2 and each take-off lever 3
10n/m
2, density p=7800kg/m
3for example, the size of other each parts is as shown in table 1 below, calculates the compressional vibration frequency f of this compressional vibration transducer with said method
a, result of calculation table 1 specific as follows:
Vibration frequency corresponding to the known each part dimension of table 1
| Numbering | l 1 | r 1 | r 2 | l 3 | r 3 | θ | f a(Hz) |
| 1 | 55 | 7.5 | 20 | 55 | 7.5 | 45 | 21560 |
| 2 | 50 | 7.5 | 20 | 50 | 7.5 | 45 | 23513 |
| 3 | 50 | 5 | 20 | 50 | 5 | 45 | 23844 |
Embodiment 2
The compressional vibration transducer that realized one end input multiterminal of the present embodiment export is connected and composed by input lever 1, conversion body 2 and 6 take-off levers 3.
Concrete: input lever 1 is connected with conversion body 2, and the conversion body 2 of the present embodiment is a hemisphere structure, and its planar ends is connected with input lever 1, the radius r of sphere
2=20mm, sphere is connected with 6 take-off levers 3 by engagement thread, 6 take-off levers 3 are circumferentially being uniformly distributed with one, and form the angle of 60 ° each other, on the central shaft that the central shaft intersection point of 6 take-off levers 3 is distributed in input lever 1 and the angle theta formed between the central shaft of its central shaft and input lever 1 is 45 °.
Set six naturals system of coordinates, it is along the axis direction of difference input lever 1, conversion body 2 and 6 take-off levers 3, and to convert the central shaft tie point of body 2 and each take-off lever 3 for initial point, the length of setting input lever 1 is l
1, diameter is r
1, conversion body 2 is l along the dimension on compressional vibration direction of transfer
2, i.e. l
2=r
2, the length of each take-off lever 3 is l
3, radius is r
3.
The design of the compressional vibration transducer of the present embodiment is carried out according to following:
The end of above-mentioned input lever 1 meets: longitudinal force is the free boundary condition of zero; The end of each take-off lever 3 meets: longitudinal force, horizontal force and moment are the free boundary condition of zero; Meet in input lever 1 and conversion body 2 junction: vertical displacement, longitudinal force are continuous, displacement and the corner of conversion body 2 and each take-off lever 3 junction are corresponding continuous, and the longitudinal force converting body 2 output terminal corresponds to longitudinal force, the transverse force sum of each take-off lever 3.
The present embodiment all selects 45# Steel material, its Young modulus E=21.6 × 10 with input lever 1, conversion body 2 and each take-off lever 3
10n/m
2, density p=7800kg/m
3for example, the size of other each parts is as shown in table 2 below, calculates the compressional vibration frequency f of this compressional vibration transducer with said method
a, result of calculation table 2 specific as follows:
Vibration frequency corresponding to each part dimension of table 2
| Numbering | l 1 | r 1 | r 2 | l 3 | r 3 | θ | f a(Hz) |
| 1 | 55 | 7.5 | 20 | 55 | 7.5 | 45 | 21600 |
| 2 | 50 | 7.5 | 20 | 50 | 7.5 | 45 | 23555 |
| 3 | 50 | 5 | 20 | 50 | 5 | 45 | 23918 |
Embodiment 3
The conversion body 2 of the present embodiment is a diameter is 40mm, thickness is the cylindrical structure of 25mm, namely the connecting end surface of itself and take-off lever 3 is planes, 4 take-off levers 3 are connected with on this plane by engagement thread, 4 take-off levers 3 are circumferentially uniformly distributed same, and the angle that shape is in 90 ° each other, on the central shaft that the central shaft intersection point of 4 take-off levers 3 is distributed in input lever 1 and the angle theta formed between the central shaft of its central shaft and input lever 1 is 45 °.
Other parts and annexation and method for designing identical with embodiment 1.
The present embodiment all selects 45# Steel material, its Young modulus E=21.6 × 10 with input lever 1, conversion body 2 and each take-off lever 3
10n/m
2, density p=7800kg/m
3for example, the size of other each parts is as shown in table 3 below, calculates the compressional vibration frequency f of this compressional vibration transducer with said method
a, result of calculation table 3 specific as follows:
Vibration frequency corresponding to the known each part dimension of table 3
| Numbering | l 1 | r 1 | r 2 | l 2 | l 3 | r 3 | θ | f a(Hz) |
| 1 | 55 | 7.5 | 20 | 25 | 55 | 7.5 | 45 | 22847 |
| 2 | 50 | 7.5 | 20 | 25 | 50 | 7.5 | 45 | 24654 |
| 3 | 50 | 5 | 20 | 25 | 50 | 5 | 45 | 25378 |
Embodiment 4
The conversion body 2 of the present embodiment is a cylindrical structure, the connecting end surface of itself and take-off lever 3 is hemisphere faces, namely the conversion body 2 of the present embodiment is 40mm by diameter, the hemisphere of thickness to be the right cylinder of 10mm and diameter be 40mm is spliced to form, the output end face of conversion body 2 is connected with 3 take-off levers 3 by engagement thread, 3 take-off levers 3 are circumferentially being uniformly distributed with one, and form the angle of 120 ° each other, on the central shaft that the central shaft intersection point of 3 take-off levers 3 is distributed in input lever 1 and the angle theta formed between the central shaft of its central shaft and input lever 1 is 60 °.
Other parts and annexation and method for designing identical with embodiment 1.
The present embodiment all selects 45# Steel material, its Young modulus E=21.6 × 10 with input lever 1, conversion body 2 and each take-off lever 3
10n/m
2, density p=7800kg/m
3for example, the size of other each parts is as shown in table 4 below, calculates the compressional vibration frequency f of this compressional vibration transducer with said method
a, result of calculation table 4 specific as follows:
Vibration frequency corresponding to the known each part dimension of table 4
| Numbering | l 1 | r 1 | l 3 | r 3 | θ | f a(Hz) |
| 1 | 55 | 7.5 | 55 | 7.5 | 60 | 23192 |
| 2 | 50 | 7.5 | 50 | 7.5 | 60 | 26785 |
| 3 | 50 | 5 | 50 | 5 | 60 | 28365 |
In order to verify feasibility of the present invention, calculated value of the present invention and experimental test value are compared, result is as follows:
Use m+pVibPilot system, the thickness of transmitting piezoelectric ceramics is 1mm, diameter is 10mm, vibro-pickup is the model that Beijing vibration measurement instrument factory produces is YD-8 type piezoelectric transducer, to embodiment 1 the compressional vibration frequency of compressional vibration transducer test, the calculated value of above-described embodiment 1 and experiment test value are contrasted, result is as shown in table 5 below:
Table 5 is that experiment test value and calculated value of the present invention contrast
Note: in table, subscript a is calculated value of the present invention, tm is experiment test value.The error of calculated value of the present invention and experiment test value is Δ
1=| (f
a-f
tm)/f
tm|.
Can be found out by above-mentioned table 5, calculated value of the present invention is compared with experimental test value, and error is less, and the feasible and reliable results of the method for designing of compressional vibration transducer of the present invention is described.
The number of the take-off lever 3 of the present embodiment and the angle theta between the central shaft of take-off lever 3 and the central shaft of input lever 1 can need to regulate according to practical application in the scope of 30 ~ 150 °.
Claims (5)
1. the compressional vibration transducer that can realize one end input multiterminal and export, this compressional vibration transducer is made up of the input lever connected successively (1), conversion body (2) and take-off lever (3), it is characterized in that: described conversion body (2) end face relative with take-off lever (3) is plane or hemisphere face structure, the take-off lever (3) arranged at its outside surface is at least 3, and each take-off lever (3) to be circumferentially evenly distributed and its central shaft intersection point is distributed on the central shaft of input lever (1) same;
The end of above-mentioned input lever (1) meets: longitudinal force is the free boundary condition of zero; The end of take-off lever (3) meets: longitudinal force, horizontal force and moment are the free boundary condition of zero; Meet in input lever (1) and conversion body (2) junction: indulge displacement, longitudinal force is continuous, conversion body (2) is corresponding with the displacement of each take-off lever (3) junction and corner continuous, and the longitudinal force converting body (2) output terminal corresponds to longitudinal force, the transverse force sum of each take-off lever (3).
2. the compressional vibration transducer realizing one end input multiterminal and export according to claim 1, is characterized in that: diameter, the length of described each take-off lever (3) are equal.
3. the compressional vibration transducer realizing one end input multiterminal and export according to claim 1 and 2, is characterized in that: the structure of described conversion body (2) is hemisphere.
4. the compressional vibration transducer realizing one end input multiterminal and export according to claim 3, is characterized in that: the length l of described input lever (1)
1with the length l of each take-off lever (3)
3and conversion body (2) is along the dimension l on compressional vibration direction of transfer
2sum meets: l
1+ l
2+ l
3< λ, the λ wavelength corresponding to the compressional vibration frequency of this compressional vibration transducer.
5. switchable compressional vibration transducer according to claim 3, is characterized in that: the diameter of described input lever (1), the diameter of take-off lever (3) and conversion body (2) edge are all less than the quarter-wave corresponding to compressional vibration frequency of this vibratory converter perpendicular to the dimension on compressional vibration direction of transfer.
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|---|---|---|---|
| CN201510455028.9A CN105118493B (en) | 2015-07-29 | 2015-07-29 | The compressional vibration converter of one end input multiterminal output can be achieved |
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|---|---|---|---|
| CN201510455028.9A CN105118493B (en) | 2015-07-29 | 2015-07-29 | The compressional vibration converter of one end input multiterminal output can be achieved |
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| CN105118493B CN105118493B (en) | 2018-12-04 |
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Citations (6)
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|---|---|---|---|---|
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| CA2364129A1 (en) * | 2001-09-13 | 2003-03-13 | Gilbert Bouchard | Multiple output system for transmitting the acoustic vibrations of the low frequency channel to a row of seats in a movie house |
| CN101053864A (en) * | 2007-05-16 | 2007-10-17 | 哈尔滨工业大学 | Parallel compound ultrasonic energy transmission device |
| CN104014473A (en) * | 2014-05-16 | 2014-09-03 | 中国计量学院 | Large-amplitude sandwich-type piezoelectric ultrasonic compound transducer |
| CN104624467A (en) * | 2015-01-23 | 2015-05-20 | 陕西师范大学 | Longitudinal vibration amplitude-change rod with included angle structure |
-
2015
- 2015-07-29 CN CN201510455028.9A patent/CN105118493B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5520061A (en) * | 1989-03-14 | 1996-05-28 | Enprotech Corporation | Multiple axis transducer mounting collar |
| CN1177792A (en) * | 1996-09-17 | 1998-04-01 | 波音公司 | Fluidic element structure body for controlling noise and vibration, and control method thereof |
| CA2364129A1 (en) * | 2001-09-13 | 2003-03-13 | Gilbert Bouchard | Multiple output system for transmitting the acoustic vibrations of the low frequency channel to a row of seats in a movie house |
| CN101053864A (en) * | 2007-05-16 | 2007-10-17 | 哈尔滨工业大学 | Parallel compound ultrasonic energy transmission device |
| CN104014473A (en) * | 2014-05-16 | 2014-09-03 | 中国计量学院 | Large-amplitude sandwich-type piezoelectric ultrasonic compound transducer |
| CN104624467A (en) * | 2015-01-23 | 2015-05-20 | 陕西师范大学 | Longitudinal vibration amplitude-change rod with included angle structure |
Non-Patent Citations (1)
| Title |
|---|
| 张海岛等: "《具有夹角结构纵振动变幅杆的设计方法》", 《中国科学：物理学 力学 天文学》 * |
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