CN109854672A - A kind of low frequency vibration isolation device of double-diaphragm spring formula - Google Patents
A kind of low frequency vibration isolation device of double-diaphragm spring formula Download PDFInfo
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- CN109854672A CN109854672A CN201910042591.1A CN201910042591A CN109854672A CN 109854672 A CN109854672 A CN 109854672A CN 201910042591 A CN201910042591 A CN 201910042591A CN 109854672 A CN109854672 A CN 109854672A
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Abstract
The invention discloses a kind of low frequency vibration isolation devices of double-diaphragm spring formula, from top to bottom successively include upper support T stage, the first bolt, one or three foot pylon, first nut, the first circular film spring, the first threaded rod, hollow connecting shaft, second threaded rod, the second circular film spring, the second nut, two or three foot pylon, the second bolt and lower support T stage；The upper support T stage and the one or the three foot pylon are bolted by described first, one or the three foot pylon is fixedly connected with the first circular film spring, after first threaded rod one end sequentially passes through the centre bore of first nut and the first circular film spring, it is threadedly coupled with the hollow one end of the connecting shaft；The hollow connecting shaft both ends connection structure is symmetrical.The present invention is arranged symmetrically using circular film spring as elastic element, and by two panels diaphragm spring, has good low frequency vibration isolation performance.
Description
Technical field
The present invention relates to vibration isolation fields to listen sonar water more particularly to a kind of low frequency vibration isolation device of double-diaphragm spring formula
Device device carries out vibration damping.
Background technique
Oscillation phenomenon is very common in life.In machinery field, if extent of vibration is more than a certain range, not only can
So that equipment is generated noise, ambient enviroment is had an impact, the working performance of equipment is also will affect, shortens the working life, make correlation
Components failure, seriously even can generate safety accident, generate threat to the security of the lives and property.In order to eliminate installation stationary plane
Influence of the vibration to equipment, vibration isolator is installed usually between equipment and stationary plane.Thus the design of vibration isolator is in equipment
Increasingly it is designed personnel's attention in production and living.
Sonar hydrophone is typically mounted at the carrier shells position such as naval vessel as a kind of sophisticated sensor.Carrier is moving
In the process, the vibration of shell can be transferred to hydrophone by mounting structure, to reduce the received signal to noise ratio of hydrophone, influence sound
Receive detection performance.And in the prior art, therefore the vibration absorber for being suitable for hydrophone there is no one need to develop a kind of low frequency
Broadband vibration isolator, is mounted between casing mounting structure and hydrophone, reduces influence of the carrier vibration to sonar hydrophone.
Summary of the invention
The purpose of the present invention is designing a kind of low frequency vibration isolation device applied to sonar hydrophone, to reduce carrier vibration pair
The influence of sonar hydrophone.
To achieve the above object, the present invention provides following schemes:
A kind of low frequency vibration isolation device of double-diaphragm spring formula, successively includes upper support T stage from top to bottom, the first bolt, and the
One or three foot pylons, the first nut, the first circular film spring, the first threaded rod, hollow connecting shaft, the second threaded rod, the second circle
Shape diaphragm spring, the second nut, the two or three foot pylon, the second bolt and lower support T stage；
One or the three foot pylon includes first support bar and three the first support legs, one end of each first support leg
It is fixedly connected with one end of the first support bar；
Two or the three foot pylon includes second support bar and three the second support legs, one end of each second support leg
It is fixedly connected with one end of the second support bar；
The upper support T stage and the other end of the first support bar are bolted by described first, and described first
The other end of support leg is fixedly connected with the first circular film spring, and first threaded rod one end sequentially passes through described
After the centre bore of one nut and the first circular film spring, it is threadedly coupled with the hollow one end of the connecting shaft；Described second
After threaded rod one end sequentially passes through the centre bore of second nut and the second circular film spring, with the hollow connection
The axis other end is threadedly coupled, and the other end of second support leg is fixedly connected with the second circular film spring, and described the
Two or three foot pylons are connect by second bolt with the lower support T stage.
Optionally, first support leg is connect with the first circular film spring by bolt and nut.
Optionally, second support leg is connect with the second circular film spring by bolt and nut.
Optionally, the centre bore of the first circular film spring and the second circular film spring is coaxial.
Optionally, the one or the three foot pylon and the two or the three foot pylon include axial counterbore, first threaded rod
It is inserted into the axial counterbore of the one or the three foot pylon and the two or the three foot pylon respectively with the other end of second threaded rod,
It is limited and is oriented to for the movement to first threaded rod and second threaded rod.
Optionally, the low frequency vibration isolation device of the double-diaphragm spring formula further includes detachable package casing.
Optionally, the first circular film spring and the second circular film spring surface are provided with multiple through-holes.
Optionally, the through-hole is crescent.
Optionally, the upper support T stage is connected with vibration isolation object, and the lower support T stage is connected with vibration source.
Optionally, the upper support T stage upper surface includes threaded hole, the threaded hole with third passed through by vibration isolation object
Threaded rod connection.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: the invention discloses one kind
The low frequency vibration isolation device of double-diaphragm spring formula, vibration are conducted by the lower support T stage being connected with vibration source to three feet being attached thereto
Pylon and circular film spring, using circular film spring as elastic element, and by the symmetrical cloth of two panels circular film spring
It sets, using the Low rigidity characteristic and elastic element series characteristic of diaphragm spring, makes to vibrate the surface conducting supreme support T stage
When can greatly decay, have good low frequency vibration isolation performance.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the low frequency vibration isolation device structural schematic diagram of double-diaphragm spring of embodiment of the present invention formula；
Fig. 2 is three foot pylon structure schematic diagram of the embodiment of the present invention；
Fig. 3 is that the embodiment of the present invention opens crescent hole circular film spring schematic diagram；
Fig. 4 is circular film spring transport curve synoptic diagram under different condition of the embodiment of the present invention；
Fig. 5 is that bilayer of the embodiment of the present invention opens crescent hole circular film spring schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of low frequency vibration isolation devices of double-diaphragm spring formula, are applied to sonar hydrophone, thus
Reduce influence of the carrier vibration to sonar hydrophone.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is the low frequency vibration isolation device structural schematic diagram of double-diaphragm spring of embodiment of the present invention formula；It is of the invention as shown in Figure 1:
It from top to bottom successively include upper support T stage 1, the 2, the 1st foot pylon 3 of the first bolt, the first nut 4, the first circular film bullet
Spring 5, the first threaded rod 6, hollow connecting shaft 7, the second threaded rod 8, the second circular film spring 9, the 10, the 2nd 3 foot of the second nut
Pylon 11, the second bolt 12, lower support T stage 13；
Upper 1 upper surface of support T stage includes threaded hole, the upper support T stage 1 with third is passed through by vibration isolation object
Threaded rod is threadedly coupled；The upper support T stage 1 and the one or the three foot pylon 3 are connected by first bolt 2, and first
First support leg of three foot pylons 3 is connect with 5 bolt and nut of the first circular film spring, described first threaded rod, 6 one end
After the centre bore for sequentially passing through first nut 4 and the first circular film spring 5, with described hollow 7 one end of connecting shaft
It is threadedly coupled；Described second threaded rod, 8 one end sequentially passes through in second nut 10 and the second circular film spring 9
It behind heart hole, is threadedly coupled with hollow 7 other end of connecting shaft, the second triangle pylon 11 and the second circular film bullet
The connection of 9 bolt and nut of spring, the two or the three foot pylon 11 are connect by second bolt 12 with the lower support T stage 13,
The lower support T stage 13 is connected with vibration source；The first circular film spring 5 and 9 center of the second circular film spring
Hole is coaxial.
The present invention can also include detachable package casing 14, for protecting the low frequency vibration isolation device of double-diaphragm spring formula.
Fig. 2 is three foot pylon structure schematic diagram of the embodiment of the present invention；As shown in Fig. 2, the three feet pylon includes support rod
21, three support legs 22 and axial counterbore 23, shown support rod 21 are connect with upper support T stage or lower support T stage, the branch
Support foot 22 is connect with circular film spring bolt nut, and it is heavy that the axial direction is inserted into one end of the first threaded rod 6 and the second threaded rod 8
Hole 23 is limited and is oriented to for the movement to the first threaded rod 6 and the second threaded rod 8.
Fig. 3 is that the embodiment of the present invention opens crescent hole circular film spring schematic diagram；As shown in figure 3, circular film spring is opened
There are multiple crescent through-holes.
Fig. 4 is circular film spring transport curve synoptic diagram under different condition of the embodiment of the present invention；As shown in figure 4, horizontal
Axis indicates excited frequency w and intrinsic frequency wnThe ratio between, i.e. frequency ratio w/wn, the longitudinal axis is for the displacement amplitude of exciting generation and by vibration isolation
Practical the ratio between the displacement amplitude generated of object, i.e. displacement transport.
For ordinate, when transmitting rate score less than 1, indicate that vibration is suppressed；When greater than 1, indicate that vibration is amplified；
When equal to 1, indicate vibration by equal transmitting；In abscissa, when excited frequency w is close to system frequency wnWhen, transport number
Value tends to maximum value, i.e. peak point.
Size (i.e. " vibration isolation frequency band ") Lai Hengliang anti-vibration performance with longitudinal axis transport value less than 1 corresponding abscissa range
Quality, from the graph, it is apparent that the corresponding vibration suppression frequency range ratio of the circular film spring for opening crescent hole is not opened
The circular film spring in hole is big, and smaller than double-layer circular diaphragm spring, so, the anti-vibration performance of double-layer circular diaphragm spring is better than
Single layer circular film spring, the single layer circular film spring vibration isolation performance for opening crescent hole are better than not opening the circular film bullet of crescent hole
Spring, therefore diaphragm spring obtained by final design is as shown in Figure 5.
The low frequency vibration isolation device of double-diaphragm spring formula designed by the present invention, using Double Circle diaphragm spring, and by threaded rod
Upper and lower two panels circular film spring is connected to hollow connecting shaft both ends to carry out being symmetrically installed arrangement.Double Circle is being passed through in vibration
It will be greatly attenuated after diaphragm spring, can be realized good single-degree-of-freedom low frequency vibration isolation.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a kind of low frequency vibration isolation device of double-diaphragm spring formula, which is characterized in that it from top to bottom successively include upper support T stage, the
One bolt, the one or three foot pylon, the first nut, the first circular film spring, the first threaded rod, hollow connecting shaft, the second screw thread
Bar, the second circular film spring, the second nut, the two or three foot pylon, the second bolt and lower support T stage；
One or the three foot pylon includes first support bar and three the first support legs, one end of each first support leg and institute
The one end for stating first support bar is fixedly connected；
Two or the three foot pylon includes second support bar and three the second support legs, one end of each second support leg and institute
The one end for stating second support bar is fixedly connected；
The upper support T stage and the other end of the first support bar are bolted by described first, first support
The other end of foot is fixedly connected with the first circular film spring, and first threaded rod one end sequentially passes through first spiral shell
After the centre bore of the female and described first circular film spring, it is threadedly coupled with the hollow one end of the connecting shaft；Second screw thread
It is another with the hollow connecting shaft after bar one end sequentially passes through the centre bore of second nut and the second circular film spring
Threaded one end connection, the other end of second support leg are fixedly connected with the second circular film spring, and the described 2nd 3
Foot pylon is connect by second bolt with the lower support T stage.
2. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that first support
Foot is connect with the first circular film spring by bolt and nut.
3. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that second support
Foot is connect with the second circular film spring by bolt and nut.
4. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that described first is round
The centre bore of diaphragm spring and the second circular film spring is coaxial.
5. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that the one or three foot
Pylon and the two or the three foot pylon include axial counterbore, the other end difference of first threaded rod and second threaded rod
It is inserted into the axial counterbore of the one or the three foot pylon and the two or the three foot pylon, for first threaded rod and described the
The movement of two threaded rods is limited and is oriented to.
6. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that double diaphragm bullets
The low frequency vibration isolation device of spring formula further includes detachable package casing.
7. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that described first is round
Diaphragm spring and the second circular film spring surface are provided with multiple through-holes.
8. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 7, which is characterized in that the through-hole is the moon
Thread form.
9. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 1, which is characterized in that the upper support T
Type platform is connected with vibration isolation object, and the lower support T stage is connected with vibration source.
10. a kind of low frequency vibration isolation device of double-diaphragm spring formula according to claim 9, which is characterized in that the upper support T
Type platform upper surface includes threaded hole, and the threaded hole is connect with by vibration isolation object by third threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042591.1A CN109854672B (en) | 2019-01-17 | 2019-01-17 | Low frequency isolator of two diaphragm spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042591.1A CN109854672B (en) | 2019-01-17 | 2019-01-17 | Low frequency isolator of two diaphragm spring |
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| Publication Number | Publication Date |
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| CN109854672A true CN109854672A (en) | 2019-06-07 |
| CN109854672B CN109854672B (en) | 2020-01-07 |
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ID=66894959
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910042591.1A Active CN109854672B (en) | 2019-01-17 | 2019-01-17 | Low frequency isolator of two diaphragm spring |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1548866B2 (en) * | 1965-08-30 | 1975-08-14 | Wild Heerbrugg Ag, Heerbrugg (Schweiz) | Pivot bearing |
| US6983924B2 (en) * | 2000-04-26 | 2006-01-10 | Brigham Young University | Compliant, ortho-planar, linear motion spring |
| JP2011501050A (en) * | 2007-10-26 | 2011-01-06 | 新日鉄エンジニアリング株式会社 | Seismic isolation structure |
| CN102654168A (en) * | 2012-05-07 | 2012-09-05 | 江苏大学 | Integrated vibration attenuation platform for airborne vibration sensitive equipment of rock heading machine |
| CN203926546U (en) * | 2014-05-21 | 2014-11-05 | 北京无线电测量研究所 | The limit-type vibration damper of a kind of parallel connection based on flat spring |
| CN205678051U (en) * | 2016-06-12 | 2016-11-09 | 北京无线电测量研究所 | A kind of Small electronic component double-layer damper based on flat spring |
| CN206738487U (en) * | 2017-05-12 | 2017-12-12 | 张若男 | Damping device for electric car |
| CN108708927A (en) * | 2018-05-24 | 2018-10-26 | 上海大学 | A kind of Variable Stiffness Vibration Isolator based on multilayer dielectric elastomer film |
-
2019
- 2019-01-17 CN CN201910042591.1A patent/CN109854672B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1548866B2 (en) * | 1965-08-30 | 1975-08-14 | Wild Heerbrugg Ag, Heerbrugg (Schweiz) | Pivot bearing |
| US6983924B2 (en) * | 2000-04-26 | 2006-01-10 | Brigham Young University | Compliant, ortho-planar, linear motion spring |
| JP2011501050A (en) * | 2007-10-26 | 2011-01-06 | 新日鉄エンジニアリング株式会社 | Seismic isolation structure |
| CN102654168A (en) * | 2012-05-07 | 2012-09-05 | 江苏大学 | Integrated vibration attenuation platform for airborne vibration sensitive equipment of rock heading machine |
| CN203926546U (en) * | 2014-05-21 | 2014-11-05 | 北京无线电测量研究所 | The limit-type vibration damper of a kind of parallel connection based on flat spring |
| CN205678051U (en) * | 2016-06-12 | 2016-11-09 | 北京无线电测量研究所 | A kind of Small electronic component double-layer damper based on flat spring |
| CN206738487U (en) * | 2017-05-12 | 2017-12-12 | 张若男 | Damping device for electric car |
| CN108708927A (en) * | 2018-05-24 | 2018-10-26 | 上海大学 | A kind of Variable Stiffness Vibration Isolator based on multilayer dielectric elastomer film |
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| CN109854672B (en) | 2020-01-07 |
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