CN105118493B - The compressional vibration converter of one end input multiterminal output can be achieved - Google Patents
The compressional vibration converter of one end input multiterminal output can be achieved Download PDFInfo
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- CN105118493B CN105118493B CN201510455028.9A CN201510455028A CN105118493B CN 105118493 B CN105118493 B CN 105118493B CN 201510455028 A CN201510455028 A CN 201510455028A CN 105118493 B CN105118493 B CN 105118493B
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Abstract
The present invention relates to a kind of compressional vibration converters of achievable one end input multiterminal output, the compressional vibration converter is made of sequentially connected input lever, transformation body and output rod, converting a body end face opposite with output rod is in plane or hemisphere face structure, in its outer surface, the output rod of setting is at least three, and each output rod is evenly distributed on the same circumference and central shaft intersection point is distributed on the central axis of input lever；Compressional vibration output in one end compressional vibration input multiple directions can be achieved in the present invention, it can achieve multiple output ends while acting on the purpose of process object, realize that large area carries out the application of ultrasonic radiation to fluid, ultrasonic treatment efficiency is improved, saves production cost, furthermore, structure of the invention design is simple, replace it is convenient for disassembly and assembly, can also number according to practical application flexible choice output rod and direction, be suitable for a wide range of promote and apply.
Description
Technical field
The invention belongs to ultrasonic compressional Design of Vibration System technical field, in particular to a kind of achievable one end inputs multiterminal
The compressional vibration converter of output.
Background technique
Ultrasonic compressional vibration system includes ultrasonic transducer, amplitude transformer and tool heads, traditional a set of ultrasonic compressional vibration system
In, an energy converter can only connect a set of amplitude transformer and tool heads, thus can only also have an output end to carry out process object
Processing, moreover, such as ultrasonic coagulation, ultrasonic de-bubble, in some applications of ultrasonic dedusting, need to carry out high-power big face to fluid
Product, ultrasonic radiation in all directions in application, need application to cover traditional ultrasonic compressional vibration system, so that working efficiency is difficult to protect more
Card, and energy consumption is larger.
Summary of the invention
For deficiency present in the above-mentioned prior art, the present invention provides a kind of achievable one end input, multiterminal outputs to reach
It to multiple process objects while being handled to multiple output ends to improve the compressional vibration converter of working efficiency.
The present invention realizes that technical solution used by above-mentioned purpose is: the compressional vibration converter is by sequentially connected input
Bar, transformation body and output rod composition, a transformation body end face opposite with output rod is in plane or hemisphere face structure, at it
The output rod of outer surface setting is at least three, and each output rod is evenly distributed on the same circumference and central shaft intersection point is distributed in
On the central axis of input lever；
The endface of above-mentioned input lever meets: the free boundary condition that longitudinal force is zero；The endface of output rod meets: vertical
The free boundary condition that Xiang Li, cross force and torque are zero；Meet in input lever and transformation body junction: vertical displacement, longitudinal force
Continuously, transformation body is corresponding with the displacement of each output rod junction and corner continuous, and the longitudinal force for converting body output end is corresponding
For the sum of the longitudinal force of each output rod, cross force.
The diameter of above-mentioned each output rod, equal length.
The structure of above-mentioned transformation body is hemisphere, so that the compressional vibration on each output rod is evenly distributed.
The length l of above-mentioned input lever1With the length l of each output rod3And dimension of the transformation body on compressional vibration direction of transfer
l2The sum of meet: l1+l2+l3< λ, λ are wavelength corresponding to the longitudinal vibration dynamic frequency of the compressional vibration converter.
The diameter of above-mentioned input lever, the diameter of output rod and transformation body are along perpendicular to the dimension on compressional vibration direction of transfer
Respectively less than quarter-wave corresponding to the longitudinal vibration dynamic frequency of the compressional vibration converter.
The compressional vibration converter of input multiterminal output in achievable one end of the invention, is to be inputted one by transformation body
Bar is integrated with the coupling of multiple output rods, and multiple output rods are uniformly distributed on the output end face space of transformation body, can be real
Compressional vibration output in existing one end compressional vibration input multiple directions, can achieve multiple output ends while acting on the mesh of process object
, it realizes that large area carries out the application of ultrasonic radiation to fluid, improves ultrasonic treatment efficiency, production cost is saved, in addition, this hair
The design of bright structure is simple, replace it is convenient for disassembly and assembly, can also number according to practical application flexible choice output rod and direction, be suitable for
It is a wide range of to promote and apply.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of compressional vibration converter.
Specific embodiment
Technical solution of the present invention is further described now in conjunction with drawings and examples, but the present invention is not limited only to
Following implementation situations.
Embodiment 1
As shown in Figure 1, the present embodiment achievable one end input multiterminal output compressional vibration converter be by input lever 1,
Transformation body 2 and output rod 3 connect and compose.
Wherein, input lever 1 is connect with transformation body 2, and the transformation body 2 of the present embodiment is a hemisphere structure, spherical surface
Radius r2=20mm, planar ends are connect with input lever 1, are connected with 3 output rods 3 with engagement thread in sphere end, respectively
First output rod, the second output rod, third output rod, 3 output rods 3 are uniformly distributed on the same circumference, and between each other
Form 120 ° of angle, the first output rod, the second output rod, third output rod central axis intersection point be distributed in input lever 1
The angle theta formed in mandrel and between central shaft and the central axis of input lever 1 is 45 °.
Set three naturals system of coordinates, respectively along input lever 1, transformation body 2 and the first output rod, the second output rod,
The axis direction of third output rod sets the length of input lever 1 using the central axis tie point for converting body 2 and each output rod 3 as origin
Degree is l1, diameter r1, converting dimension of the body 2 on compressional vibration direction of transfer is l2, i.e. l2=r2, the first output rod, second defeated
The length of rod and third output rod is l3, radius is r3。
The endface of above-mentioned input lever 1 meets: the free boundary condition that longitudinal force is zero；The endface of output rod 3 meets:
The free boundary condition that longitudinal force, cross force and torque are zero；Meet in input lever 1 and transformation 2 junction of body: vertical to be displaced, is vertical
Continuous to power, transformation body 2 is corresponding with the displacement of each 3 junction of output rod and corner continuous, and converts the longitudinal direction of 2 output end of body
Power corresponds to the sum of the longitudinal force of each output rod 3, cross force.
ε2|X=0=ε3|X=0cosθ+η3|X=0sinθ (13)
ε2|X=0=ε4|X=0cosθ+η4|X=0sinθ (14)
ε2|X=0=ε5|X=0cosθ+η5|X=0sinθ (15)
Fl2|X=0=Fl3|X=0cosθ+Ff3|X=0sinθ+Fl4|X=0cosθ+Ff4|X=0sinθ+Fl5|X=0cosθ+Ff5|X= 0sinθ (16)
-ε3|X=0sinθ+η3|X=0θ=0 cos (17)
-ε4|X=0sinθ+η4|X=0θ=0 cos (18)
-ε5|X=0sinθ+η5|X=0θ=0 cos (19)
φ3|X=0=0 (20)
φ4|X=0=0 (21)
φ5|X=0=0 (22)
Wherein, ε1For the length travel of input lever 1, m；ε2For the length travel for converting body 2, m；
ε3、ε4、ε5The length travel of first output rod, the second output rod, third output rod respectively, m；
η3、η4、η5Respectively the first output rod, the second output rod, third output rod lateral displacement, m；
Fl1For longitudinal force suffered by input lever 1, N；Fl2For longitudinal force suffered by transformation body 2, N；
Fl3、Fl4、Fl5Respectively the first output rod, the second output rod, longitudinal force suffered by third output rod, N；
Ff3、Ff4、Ff5First output rod in respectively, the second output rod, cross force suffered by third output rod, N；
φ3、φ4、φ5Respectively the first output rod, the second output rod, third output rod are on the basis of respective central axis
Corner；
M3、M4、M5Respectively the first output rod, the second output rod, torque suffered by third output rod, Nm；
The present embodiment selects 45# Steel material, Young's modulus E=with input lever 1, transformation body 2 and each output rod 3
21.6×1010N/m2, density p=7800kg/m3For, the size of other each components is as shown in table 1 below, calculates in aforementioned manners
The longitudinal vibration dynamic frequency f of the compressional vibration convertera, calculated result table 1 specific as follows:
Vibration frequency corresponding to each part dimension known to table 1
| Number | l1 | r1 | r2 | l3 | r3 | θ | fa(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 present embodiment achievable one end input multiterminal output compressional vibration converter be by input lever 1, transformation body 2 and
6 output rods 3 connect and compose.
Specific: input lever 1 is connect with transformation body 2, and the transformation body 2 of the present embodiment is a hemisphere structure, planar ends
It is connect with input lever 1, the radius r of spherical surface2=20mm is connected with 6 output rods, 3,6 output rods with engagement thread on spherical surface
3 are uniformly distributed on a circumference, and form 60 ° of angle between each other, and the central axis intersection point of 6 output rods 3 is distributed in
The angle theta formed on the central axis of input lever 1 and between central shaft and the central axis of input lever 1 is 45 °.
Set six naturals system of coordinates, along respectively input lever 1, convert body 2 and 6 output rod 3 axis direction, with
The central axis tie point for converting body 2 and each output rod 3 is origin, sets the length of input lever 1 as l1, diameter r1, convert body 2
Dimension on compressional vibration direction of transfer is l2, i.e. l2=r2, the length of each output rod 3 is l3, radius is r3。
The design of the compressional vibration converter of the present embodiment is according to following progress:
The endface of above-mentioned input lever 1 meets: the free boundary condition that longitudinal force is zero；The endface of each output rod 3 is full
Foot: the free boundary condition that longitudinal force, cross force and torque are zero；Meet in input lever 1 and transformation 2 junction of body: vertical displacement,
Longitudinal force is continuous, and transformation body 2 is corresponding with the displacement of each 3 junction of output rod and corner continuous, and converts the vertical of 2 output end of body
The sum of longitudinal force, the cross force of each output rod 3 are corresponded to power.
The present embodiment selects 45# Steel material, Young's modulus E=with input lever 1, transformation body 2 and each output rod 3
21.6×1010N/m2, density p=7800kg/m3For, the size of other each components is as shown in table 2 below, calculates in aforementioned manners
The longitudinal vibration dynamic frequency f of the compressional vibration convertera, calculated result table 2 specific as follows:
Vibration frequency corresponding to each part dimension of table 2
| Number | l1 | r1 | r2 | l3 | r3 | θ | fa(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 transformation body 2 of the present embodiment is that a diameter is 40mm, with a thickness of the cylindrical structure of 25mm, i.e. itself and output rod
3 connecting end surface is plane, is connected with 4 output rods, 3,4 output rods 3 in the same circumference with engagement thread on this plane
On be uniformly distributed, and shape angle in 90 °, the central axis intersection point of 4 output rods 3 are distributed in the center of input lever 1 between each other
The angle theta formed on axis and between central shaft and the central axis of input lever 1 is 45 °.
Other components and connection relationship and design method are same as Example 1.
The present embodiment selects 45# Steel material, Young's modulus E=with input lever 1, transformation body 2 and each output rod 3
21.6×1010N/m2, density p=7800kg/m3For, the size of other each components is as shown in table 3 below, calculates in aforementioned manners
The longitudinal vibration dynamic frequency f of the compressional vibration convertera, calculated result table 3 specific as follows:
Vibration frequency corresponding to each part dimension known to table 3
| Number | l1 | r1 | r2 | l2 | l3 | r3 | θ | fa(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 transformation body 2 of the present embodiment is a cylindrical structure, and the connecting end surface with output rod 3 is hemisphere face, i.e., originally
The transformation body 2 of embodiment by diameter be 40mm, with a thickness of the cylindrical body of 10mm and a diameter be 40mm hemisphere splice structure
At, be connected on the output end face of transformation body 2 with engagement thread 3 output rods, 3,3 output rods 3 on a circumference
Even distribution, and 120 ° of angle is formed between each other, the central axis intersection point of 3 output rods 3 is distributed on the central axis of input lever 1
And the angle theta formed between central shaft and the central axis of input lever 1 is 60 °.
Other components and connection relationship and design method are same as Example 1.
The present embodiment selects 45# Steel material, Young's modulus E=with input lever 1, transformation body 2 and each output rod 3
21.6×1010N/m2, density p=7800kg/m3For, the size of other each components is as shown in table 4 below, calculates in aforementioned manners
The longitudinal vibration dynamic frequency f of the compressional vibration convertera, calculated result table 4 specific as follows:
Vibration frequency corresponding to each part dimension known to table 4
| Number | l1 | r1 | l3 | r3 | θ | fa(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 invention, calculated value of the invention is compared with experimental test value, as a result as follows:
With m+p VibPilot system, transmitting piezoelectric ceramics with a thickness of 1mm, diameter 10mm, vibration pickup is Beijing
The model YD-8 type piezoelectric transducer of vibration measurement instrument factory production, to the compressional vibration frequency of the compressional vibration converter of embodiment 1
Rate is tested, and the calculated value of above-described embodiment 1 and experiment test value are compared, as a result as shown in table 5 below:
Table 5 is to test test value and calculated value comparison of the invention
Note: subscript a is calculated value of the present invention in table, and tm is experiment test value.Calculated value of the present invention and experiment test value
Error is Δ1=| (fa-ftm)/ftm|。
By above-mentioned table 5 as can be seen that calculated value of the invention is compared with experimental test value, error is smaller, illustrates this
The design method of the compressional vibration converter of invention is feasible and result is reliable.
Angle between the number of the output rod 3 of the present embodiment and the central axis of output rod 3 and the central axis of input lever 1
θ can be adjusted according to the actual application in the range of 30~150 °.
Claims (4)
1. a kind of compressional vibration converter of achievable one end input multiterminal output, which is by sequentially connected defeated
Enter bar (1), transformation body (2) and output rod (3) composition, it is characterised in that: the transformation body (2) and output rod (3) are opposite
One end face is in plane or hemisphere face structure, and in its outer surface, the output rod (3) of setting is at least three, and each output rod (3) is same
It is evenly distributed on circumference and central shaft intersection point is distributed on the central axis of input lever (1), the diameter of each output rod (3), length
It spends equal；
The endface of above-mentioned input lever (1) meets: the free boundary condition that longitudinal force is zero；The endface of output rod (3) meets:
The free boundary condition that longitudinal force, cross force and torque are zero；Meet in input lever (1) and transformation body (2) junction: vertical position
Shifting, longitudinal force are continuous, and transformation body (2) is corresponding with the displacement of each output rod (3) junction and corner continuous, and converts body (2)
The longitudinal force of output end corresponds to the sum of the longitudinal force of each output rod (3), cross force.
2. the compressional vibration converter of achievable one end input multiterminal output according to claim 1, it is characterised in that: described
The structure for converting body (2) is hemisphere.
3. the compressional vibration converter of achievable one end input multiterminal output according to claim 2, it is characterised in that: described
The length l of input lever (1)1With the length l of each output rod (3)3And dimension l of transformation body (2) on compressional vibration direction of transfer2
The sum of meet: l1+l2+l3< λ, λ are wavelength corresponding to the longitudinal vibration dynamic frequency of the compressional vibration converter.
4. the compressional vibration converter of achievable one end input multiterminal output according to claim 2, it is characterised in that: described
The diameter of input lever (1), the diameter of output rod (3) and transformation body (2) are along equal perpendicular to the dimension on compressional vibration direction of transfer
Quarter-wave corresponding to longitudinal vibration dynamic frequency less than the vibratory converter.
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Citations (6)
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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 |
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| 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)
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| 《具有夹角结构纵振动变幅杆的设计方法》;张海岛等;《中国科学：物理学 力学 天文学》;20150630;第45卷(第6期);第064302-1页-064302-8页 * |
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