CN108518450B - Anti-vibration device and fiber grating demodulator - Google Patents
Anti-vibration device and fiber grating demodulator Download PDFInfo
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- CN108518450B CN108518450B CN201810362716.4A CN201810362716A CN108518450B CN 108518450 B CN108518450 B CN 108518450B CN 201810362716 A CN201810362716 A CN 201810362716A CN 108518450 B CN108518450 B CN 108518450B
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- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an anti-vibration device and a fiber grating demodulator. The device includes: the vibration isolation device comprises a shell, vibration isolation strips, an Jiong-shaped plate, a supporting column and a vibration isolation base; the shell comprises a shell body and a shell cover; the shell body of the shell and the shell cover of the shell are matched and connected to form a hollow structure; a bracket is arranged on the inner surface of the shell body of the shell; the Jiong-shaped plate is fixed by a vibration isolation strip arranged on the bracket; the support column crosses the Jiong-shaped plate and is used for bearing equipment with anti-vibration requirements. The fiber grating demodulator includes: the anti-vibration device, the connector, the optical path module and the circuit module are as above. The anti-vibration device and the fiber grating demodulator provided by the invention adopt the design of the vibration isolation strip embedded type vibration reduction structure with good buffering effect, so that the anti-vibration performance of the anti-vibration device is greatly superior to that of a vibration reduction mode of mechanical bolt structure fixing equipment.
Description
Technical Field
The invention relates to the technical field of vibration resistance of optical instrument equipment, in particular to a vibration resistance device and a fiber grating demodulator.
Background
The stability requirements for the environment of the device comprising the photovoltaic module are very high. External shock vibration of the equipment can cause damage, poor contact and inaccurate measurement of components and circuits inside the equipment, so that the equipment cannot work normally.
In the prior art, a mechanical bolt structure is generally adopted to fix equipment. The mode has little influence on equipment working in a static environment, but when the equipment is carried on other object devices and is in a vibration environment, or when the equipment is transported or accidentally collided or dropped in the moving process of the equipment, the mode of fixing the equipment by adopting a mechanical bolt structure is difficult to meet the requirement of vibration resistance of the equipment.
Disclosure of Invention
The invention provides an anti-vibration device and a fiber grating demodulator, aiming at overcoming the defect that the anti-vibration requirement of equipment is difficult to meet by adopting a mode of fixing the equipment by a mechanical bolt structure in the prior art.
According to an aspect of the present invention, there is provided an anti-vibration device including: the vibration isolation device comprises a shell, vibration isolation strips, an Jiong-shaped plate, a supporting column and a vibration isolation base; the shell comprises a shell body and a shell cover; the shell body of the shell and the shell cover of the shell are matched and connected to form a hollow structure; a bracket is arranged on the inner surface of the shell body of the shell; the Jiong-shaped plate is fixed by a vibration isolation strip arranged on the bracket; the support column crosses the Jiong-shaped plate and is used for bearing equipment with anti-vibration requirements.
Wherein the vibration isolator bar comprises a first portion and a second portion; the first part is a vibration isolation strip provided with a right-angle groove along the length direction and used for fixing the Jiong-shaped plate and damping vibration when vibration occurs; the second part is two vibration isolation strips matched with the right-angle grooves and used for embedding and fixing the front end and the rear end of the Jiong-shaped plate to the first part.
The vibration isolation base is of a boss structure and is used for connecting and fixing the vibration isolation device and carrying and fixing the vibration isolation device on other objects; the base is made of rubber, and the top of the boss structure is fixedly connected with the bottom of the shell body of the shell and used for bearing the shell and reducing vibration when impact vibration occurs.
The boss structure is provided with a hollow through hole parallel to the base plate.
Wherein the bracket comprises a bracket column and a bracket head; one end of the support column is fixed on the inner surface of the shell body of the shell, and the other end of the support column is connected with the support head; the support head is of a cluster-shaped structure extending outwards and is used for being fixedly connected with the vibration isolation strips.
And a rubber sealing gasket is arranged on the shell cover.
According to another aspect of the present invention, there is provided a fiber grating demodulator, comprising: the anti-vibration device, the connector, the optical path module and the circuit module as described above; the number of the support columns in the anti-vibration device is two, and the support columns are arranged in parallel to the bottom of the shell body of the shell; the light path module and the circuit module are respectively arranged on one supporting column and are connected through a connector; the optical path module and the circuit module are respectively obtained by classifying and integrating all modules in the existing fiber bragg grating demodulator.
Wherein the optical path module includes: the device comprises a tunable filter module, a light source module, a light path coupling module and a photoelectric detection module.
Wherein the circuit module comprises: the circuit comprises an operational amplifier circuit module, an ADC circuit module and an FPGA module.
Wherein the connector comprises: arranging needles and nuts; the pin header is arranged on the light path module, and the female header is arranged on the circuit module.
According to the anti-vibration device provided by the invention, the support is arranged on the inner surface of the shell body of the shell, the Jiong-shaped plate is fixed through the vibration isolation strips arranged on the support, and the support column stretches across the Jiong-shaped plate and is used for bearing equipment with anti-vibration requirements, so that effective anti-vibration is realized. Because the vibration-proof device adopts the vibration isolating strips with good buffering effect, the vibration-proof performance of the vibration-proof device is greatly superior to that of a vibration-proof mode of mechanical bolt structure fixing equipment. In addition, according to the fiber grating demodulator provided by the invention, the light path module and the circuit module are arranged on the support column of the anti-vibration device, so that the structural fault of the demodulator caused by external vibration and impact can be effectively avoided, the working stability of the demodulator is improved, the maintenance period of the demodulator is prolonged to a certain extent, and the service life is prolonged. Meanwhile, a reliable technical guarantee is provided for the application of the fiber grating demodulator in the impact vibration environment of airplanes, ships, spacecrafts, large-scale equipment and the like, and the fiber grating demodulator has high market value and economic benefit.
Drawings
Fig. 1 is a schematic structural view of an anti-vibration device according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a vibration isolator according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a bracket fixing one edge of an "Jiong" shaped plate through a vibration isolation strip according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a stent structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a vibration isolation mount according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a fiber grating demodulator according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of the pin header and the box header before and after connection according to the embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, according to an aspect of the present invention, there is provided an anti-vibration device including: the vibration isolation device comprises a shell 1, vibration isolation strips 2, an 'Jiong' template 3, a support column 4 and a vibration isolation base 5; the shell 1 comprises a shell body and a shell cover; the shell body of the shell and the shell cover of the shell are matched and connected to form a hollow structure; a bracket 11 is arranged on the inner surface of the shell body of the shell; the Jiong-shaped plate 3 is fixed by a vibration isolation strip 2 arranged on the bracket 1; the support column 4 spans the 'Jiong' form 3 for carrying equipment with anti-vibration requirements.
In the present embodiment, the housing 1 is made of a metal material having a certain hardness to prevent deformation and damage to the devices inside the housing 1 when collision occurs, and preferably, an aluminum alloy is used. The vibration isolation strips 2 are made of a reversibly deformable highly elastic polymer material, which is highly elastic at room temperature, and preferably, rubber is used. When the force is applied from the bracket 11, the large deformation can be generated, the impact vibration energy is absorbed, and the acting force to the Jiong type plate 3 is reduced. In addition, the vibration isolating bars 2 can be restored to their original shape after the external force is removed. The "Jiong" shaped plate 3 is made of a metal material with certain hardness to further prevent deformation in collision and damage to the devices inside the housing 1, and is preferably formed by bending an aluminum plate. The support columns 4 are of a material of a certain hardness to ensure their load-bearing capacity. The vibration isolation base 5 is mainly used for supporting and connecting the fixed housing 1, and in order to ensure the stability of the vibration isolation base 5, the vibration isolation base 5 can be fixedly carried on other objects in a use environment.
According to the anti-vibration device provided by the invention, the support is arranged on the inner surface of the shell body of the shell, the Jiong-shaped plate is fixed through the vibration isolation strips arranged on the support, and the support column stretches across the Jiong-shaped plate and is used for bearing equipment with anti-vibration requirements, so that an effective anti-vibration effect is realized. Because the vibration-proof device adopts the vibration isolating strips with good buffering effect, the vibration-proof performance of the vibration-proof device is greatly superior to that of a vibration-proof mode of mechanical bolt structure fixing equipment.
As an alternative embodiment, as shown in fig. 2, the vibration isolation strip 2 comprises a first portion 21 and a second portion 22; the first part 21 is a vibration isolation strip 2 provided with a right-angle groove along the length direction and used for fixing the Jiong-shaped plate 3 and damping vibration when vibration occurs; the second part 22 is two rubber blocks matched with the right-angle grooves and used for fixing the front end and the rear end of the Jiong-shaped plate 3 to the first part 21.
As shown in fig. 3, in the present embodiment, the bracket 11 is embedded in the first portion 21 to fix the first portion 21. One edge of "Jiong" form 3 is placed in the right angle groove of first portion 21. The second part 22 is glued into the right angle groove of the first part 21 with super glue at both ends of one edge of the 'Jiong' form 3 to secure one edge of the 'Jiong' form 3. The number of the vibration isolation strips 2 is the same as that of the ribs of the "Jiong" shaped plate 3. The number of the embedded brackets 11 in each vibration isolating bar 2 can be determined according to actual conditions.
As an alternative embodiment, as shown in fig. 4, the vibration isolation base 5 is a boss structure; the vibration isolation base is used for connecting and fixing the vibration isolation device and is fixedly carried on other objects; the vibration isolation base 5 is made of rubber, and the top of the boss structure is fixedly connected with the bottom of the shell body of the shell and used for bearing the shell 1 and reducing vibration when vibration occurs.
In the embodiment, the anti-vibration device is inevitably moved due to collision or bumping during use, which may cause damage to internal components during movement, and the anti-vibration device is effectively fixed to other objects by the vibration isolation base 5. The boss structure made of rubber effectively reduces vibration of the anti-vibration device in the vertical direction.
As an optional embodiment, the boss structure is provided with a hollowed-out through hole parallel to the bottom plate.
In this embodiment, compare in boss structure and do not set up the parallel the fretwork through-hole of bottom plate, when anti-vibration device vibrated in the vertical direction, the boss structure is last to set up the parallel the fretwork through-hole of bottom plate can increase the fluctuation range about shell 1, and furthest's absorption impact vibration energy further improves anti-vibration device's vibration resistance.
As an alternative embodiment, as shown in fig. 5, the bracket 11 includes a bracket post 111 and a bracket post 112; one end of the support column 111 is fixed on the inner surface of the shell body of the shell, and the other end of the support column 111 is connected with the support column 112; the support posts 112 are of a cluster-like structure extending outward and are used for being fixedly connected with the vibration isolation strips 2.
In the present embodiment, the support column 111 is made of a material having a certain hardness to prevent damage when vibrated, and preferably, a metal material is used. The support posts 112 may be v-shaped, deer horn shaped, etc.
As an alternative, a rubber sealing washer is arranged on the housing cover.
In the present embodiment, when the environment outside the enclosure 1 has a large amount of water or ash, it may damage or shorten the life of the devices inside the enclosure 1. Through set up rubber seal ring on the shell cover for the shell cover is laminated with the shell body closely, can effectively avoid 1 external environment water of shell or ash to cause the damage or make its life-span shorten to the device of shell 1 inside.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
As shown in fig. 6, according to another aspect of the present invention, there is provided a fiber grating demodulator, including: the anti-vibration device 10, the connector 20, the optical path module 30, and the circuit module 40 as described above; the number of the support columns in the anti-vibration device 10 is two, and the support columns are arranged in parallel to the bottom of the shell body of the shell; the optical path module 30 and the circuit module 40 are respectively arranged on one supporting column 4, and the optical path module 30 and the circuit module 40 are connected through a connector 20; the optical path module 30 and the circuit module 40 are respectively obtained by classifying and integrating the modules in the existing fiber grating demodulator.
In this embodiment, the optical path module 30 and the circuit module 40 are obtained by classifying and integrating the modules in the existing fiber grating demodulator, so that the modules in the existing fiber grating demodulator can be conveniently embedded in the anti-vibration device 10. By arranging the optical path module 30 and the circuit module 40 in the anti-vibration device 10, the fiber grating demodulator can effectively resist vibration and can adapt to measurement work in various dynamic environments.
According to the fiber grating demodulator provided by the invention, the light path module 30 and the circuit module 40 are arranged on the support column of the anti-vibration device 10, so that the structural fault of the demodulator caused by external vibration and impact can be effectively avoided, the working stability of the demodulator is improved, the maintenance period of the demodulator is prolonged to a certain extent, and the service life is prolonged. Meanwhile, a reliable technical guarantee is provided for the application of the fiber grating demodulator in the impact vibration environment of airplanes, ships, spacecrafts, large-scale equipment and the like, and the fiber grating demodulator has high market value and economic benefit.
As an alternative embodiment, the optical path module 30 includes: the device comprises a tunable filter module, a light source module, a light path coupling module and a photoelectric detection module.
In the present embodiment, the optical path module 30 is selected and combined from modules related to optical signal processing according to the performance of each module in the conventional fiber grating demodulator.
As an alternative embodiment, the circuit module 40 includes: an operational amplifier circuit module 40, an ADC circuit module 40 and an FPGA module.
In the present embodiment, the modules related to the electrical signal processing are selected and combined into the circuit module 40 according to the performance of each module in the conventional fiber grating demodulator.
As an alternative embodiment, as shown in fig. 7, the connector 20 includes: a pin header 201 and a nut header 202; the pin header 201 is disposed on the light path module 30, and the bus header 202 is disposed on the circuit module 40.
In this embodiment, the use of the pin header 201 and the pin header 202 effectively improves the reliability of the signal interconnection between the optical circuit module 30 and the circuit module 40.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. An anti-vibration apparatus, comprising: the vibration isolation device comprises a shell, vibration isolation strips, an Jiong-shaped plate, a supporting column and a vibration isolation base;
the shell comprises a shell body and a shell cover; the shell body of the shell and the shell cover of the shell are matched and connected to form a hollow structure;
a bracket is arranged on the inner surface of the shell body of the shell;
the Jiong-shaped plate is fixed by a vibration isolation strip arranged on the bracket;
the supporting column crosses the Jiong-shaped plate and is used for bearing equipment with anti-vibration requirements;
the vibration isolator bar comprises a first part and a second part;
the first part is a vibration isolation strip provided with a right-angle groove along the length direction and used for fixing the Jiong-shaped plate and damping vibration when vibration occurs;
the second part is two rubber blocks matched with the right-angle grooves and used for embedding and fixing the front end and the rear end of the Jiong-shaped plate to the first part.
2. The device according to claim 1, wherein the vibration isolation base is of a boss structure and is used for connecting and fixing the vibration isolation device and carrying and fixing the vibration isolation device on other objects;
the vibration isolation base is made of rubber, and the top of the boss structure is fixedly connected with the bottom of the shell body of the shell and used for bearing the shell and reducing vibration when impact vibration occurs.
3. The device of claim 1, wherein the stent comprises a stent post and a stent head;
one end of the support column is fixed on the inner surface of the shell body of the shell, and the other end of the support column is connected with the support head;
the support head is of a cluster-shaped structure extending outwards and is used for being fixedly connected with the vibration isolation strips.
4. The apparatus of claim 1, wherein a sealing gasket is provided on the housing cover.
5. A fiber grating demodulator, comprising: the anti-vibration device, connector, optical circuit module and circuit module of any of claims 1-4;
the number of the support columns in the anti-vibration device is two, and the support columns are arranged in parallel to the bottom of the shell body of the shell;
the light path module and the circuit module are respectively arranged on one supporting column and are connected through a connector;
the optical path module and the circuit module are respectively obtained by classifying and integrating all modules in the existing fiber bragg grating demodulator.
6. The fiber grating demodulator according to claim 5, wherein the optical path module comprises: the device comprises a tunable filter module, a light source module, a light path coupling module and a photoelectric detection module.
7. The fiber grating demodulator according to claim 5, wherein the circuit module comprises: the circuit comprises an operational amplifier circuit module, an ADC circuit module and an FPGA module.
8. The fiber grating demodulator according to claim 5, wherein the connector comprises: arranging needles and nuts; the pin header is arranged on the light path module, and the female header is arranged on the circuit module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810362716.4A CN108518450B (en) | 2018-04-20 | 2018-04-20 | Anti-vibration device and fiber grating demodulator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810362716.4A CN108518450B (en) | 2018-04-20 | 2018-04-20 | Anti-vibration device and fiber grating demodulator |
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| CN108518450B true CN108518450B (en) | 2020-01-07 |
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| DE102007043320A1 (en) * | 2007-09-12 | 2009-04-23 | Krämer, Albert | Device for damping oscillations in e.g. hot air curtain units comprises elastic profiles forming an interlocking or frictionally engaged connection with objects |
| KR20120110764A (en) * | 2011-03-30 | 2012-10-10 | 송원진 | Elastomeric rubber bearing |
| CN202007858U (en) * | 2011-04-12 | 2011-10-12 | 蒋永庆 | Shock-proof element |
| FR3024190A1 (en) * | 2014-07-28 | 2016-01-29 | Bosch Gmbh Robert | BRAKE SKATE EQUIPPED WITH AN ANTI-NOISE DEVICE |
| CN106678225A (en) * | 2015-11-09 | 2017-05-17 | 杨文元 | Convex type shock absorber |
| CN206468732U (en) * | 2016-12-30 | 2017-09-05 | 安徽神健粮食机械设备有限公司 | A kind of Multifunctional rubber elastic parts |
| CN107102698A (en) * | 2017-04-19 | 2017-08-29 | 四川嘉义索隐科技有限公司 | The mainboard of LGA package under X86 platforms |
| CN107575530B (en) * | 2017-09-27 | 2019-07-23 | 北京时代民芯科技有限公司 | With the composite damper for sacrificing structure |
| CN107765800A (en) * | 2017-11-28 | 2018-03-06 | 安陆市高端文化传媒有限公司 | A kind of industrial computer host case fixed seat |
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