CN201627376U - Concrete Vibration Device Using Ultrasonic Vibration - Google Patents
Concrete Vibration Device Using Ultrasonic Vibration Download PDFInfo
- Publication number
- CN201627376U CN201627376U CN2010201504794U CN201020150479U CN201627376U CN 201627376 U CN201627376 U CN 201627376U CN 2010201504794 U CN2010201504794 U CN 2010201504794U CN 201020150479 U CN201020150479 U CN 201020150479U CN 201627376 U CN201627376 U CN 201627376U
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- Prior art keywords
- ultrasonic
- transducer
- vibration
- concrete
- ultrasonic vibration
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- 230000010355 oscillation Effects 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 239000004519 grease Substances 0.000 claims description 3
- 229940099259 vaseline Drugs 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000010358 mechanical oscillation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model discloses a concrete vibration device using the ultrasonic vibration, comprising an ultrasonic generator, a transducer, an amplitude transformer and a vibration plate, wherein the high-frequency AC is generated by the ultrasonic generator and is converted into ultrasonic oscillation with certain power output and then transmitted to the transducer; the transducer converts the ultrasonic oscillation generated by the ultrasonic generator into the mechanical vibration, and the amplitude is amplified to about 0.05-0.1mm by means of the amplitude transformer; the vibration plate is driven to perform ultrasonic vibration and transfer the vibration to the concrete aggregate to lead the concrete to be in heavy liquid status, so that the concrete is compact. The utility model has the characteristics of reasonable structural design, low cost, simple structure and high vibrating efficiency.
Description
Technical field
The utility model relates to a kind of concrete vibrator that utilizes ultrasonic vibration, is used in the concrete construction concrete is carried out on the vibratory compaction.
Background technology
At present, in the concrete construction concrete being carried out vibratory compaction all is mechanical vibrator, generally adopt eccentric type or planetary vibrator in the existing construction, the main problem that has two aspects: the one, frequency improves the restriction that is subjected to bearing life, although adopt various different structures, but owing to be subjected to the restriction in vibration bearing life-span, have only tens hours working time sometimes, this has seriously restricted the life-span of vibrator and the raising of operating efficiency.The 2nd, noise pollution is serious, and this badly influences environment in urban architecture.
The utility model content
In order to address the above problem, main purpose of the present utility model has been to provide a kind of concrete vibrator that utilizes ultrasonic vibration, does not have noise pollution, the vibration frequency height, closely knit effective to concrete, the utlity model has reasonable in design, make things convenient for characteristics of high efficiency.
For reaching above-mentioned purpose, the utility model adopts following technical scheme, and a kind of concrete vibrator that utilizes ultrasonic vibration is characterized in that, comprising:
Ultrasonic generator: produce high-frequency alternating current by ultrasonic generator, and change high-frequency alternating current into supersonic oscillations that certain power output is arranged, provide vibrating plate to make the required energy of double vibrations;
Transducer; Transducer links to each other with ultrasonic generator, and the supersonic oscillations that ultrasonic generator is produced convert mechanical oscillation to;
The luffing bar: the luffing bar links to each other with transducer, and the amplitude of the ultrasonic vibration that transducer is obtained is amplified, to obtain the ultrasonic needed amplitude that vibrates;
Vibrating plate: vibrating plate links to each other with the luffing bar, receives the ultrasonic vibration of transmitting after the luffing bar amplifies, and the concrete aggregate is passed in vibration.
The utility model further is provided with as follows:
Transducer adopts piezo-electric effect transducer or magnetostrictive effect transducer.
The luffing bar is a bar of variable cross-section, is provided with two, and luffing bar employing acoustic resistance is little, the high material of fatigue strength is made, and can be amplified to 0.05~0.1mm to amplitude by the luffing bar.
Adopt spiral marking connection between vibrating plate and the luffing bar, its spiral marking connection place is coated with vaseline grease, to prevent to exist the air gap.During installation, it is that zero " standing wave node " located to fix that transducer, luffing bar and vibrating plate should be chosen in amplitude.
The beneficial effects of the utility model are as follows: the utility model is by utilizing the concrete vibrator of ultrasonic vibration, and it is low to have a cost, the advantage of simple structure, high efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Number in the figure: ultrasonic generator 1, transducer 2, luffing bar 3, vibrating plate 4.
The specific embodiment
As shown in Figure 1, a kind of utilization of present embodiment indication utilizes the concrete vibrator of ultrasonic vibration, mainly contain ultrasonic generator 1, transducer 2, luffing bar 3, vibrating plate 4 compositions, ultrasonic generator 1 and transducer 2 link by lead, luffing bar 3 links to each other with transducer 2, and vibrating plate 4 links to each other with luffing bar 3.
Ultrasonic generator: the effect of ultrasonic generator (ultrasonic-frequency power supply) is to produce high-frequency alternating current, and changes high-frequency alternating current into supersonic oscillations that certain power output is arranged, makes the required energy of double vibrations so that vibrating plate to be provided.Its basic demand is: power output and frequency are adjustable continuously within the specific limits, reliable operation.
Transducer; Transducer links to each other with ultrasonic generator, and its effect is to convert the supersonic oscillations that ultrasonic generator produces to mechanical oscillation.Can adopt two kinds of piezo-electric effect transducer and magnetostrictive effect transducers.Piezo-electric effect transducer: quartz crystal, barium titanate (BaTiO
3) and lead zirconate titanate (ZrPbTiO
3) wait material certain voltage in addition on their two interfaces, then will produce certain mechanically deform, this phenomenon is called " piezo-electric effect ".If the two sides adds the alternating voltage of per second more than 16000 times, then this material produces the dilatation of high frequency, and the medium around making is done ultrasonic vibration.In order to obtain maximum ultrasonic intensity, should make transistor be in resonance state, when crystal wafer thickness is that four of ultrasonic wavelength/for the moment, the vibration of generation is ideal.Magnetostrictive transducer: materials such as iron, cobalt, nickel and alloy thereof and iron oxysome, its length can or be stretched or the phenomenon that contracts is called magnetostrictive effect along with the intensity in magnetic field of living in.Magnetostrictive transducer can be divided into metal and ferritic two classes again.Metal transducer mechanical strength height, that the unit area width of cloth is penetrated power is big, stable work in work, electroacoustic efficiency lower (30%~40%).Can be used for big or middle power vibrator.Because magnetostrictive effect weakened when temperature raise, need to adopt Forced water cooling.The electroacoustic efficiency higher (>80%) of the flexible transducer of ferrite mangneto, but mechanical strength is low, and it is little that the unit area width of cloth is penetrated power, can be used for the ultrasonic vibrator of small-power, can adopt air blast cooling or cooling naturally.
The luffing bar: the luffing bar links to each other with transducer, can be provided with two, and the luffing bar is a bar of variable cross-section, and its effect is that the amplitude of ultrasonic vibration that transducer is obtained is amplified, to obtain the ultrasonic needed amplitude that vibrates.The luffing bar can amplify amplitude, is because it is a bar of variable cross-section, and as shown in Figure 1, the vibrational energy by this each cross section of bar is constant (disregards to propagate and consume), and the little local energy density in cross section is big.Be proportional to the square root of energy density because of amplitude.The major parameter that characterizes luffing bar performance has: resonance frequency, displacement amplitude multiplication factor, shape factor, input impedance are with frequency and load variations characteristic etc.It is big that major requirement displacement amplitude multiplication factor is wanted, and input impedance is little with the variation of frequency and load.The material requirements acoustic resistance of luffing bar is little, fatigue strength is high.Commonly used 45,65Mn, 40Cr etc.Can be amplified to amplitude about 0.05~0.1mm by the luffing bar.
Vibrating plate: vibrating plate links to each other with the luffing bar, hyperacoustic mechanical oscillation pass to vibrating plate after the luffing bar amplifies, make concrete produce the vibration of certain frequency, vibrating plate is as the load of luffing bar, it is the ingredient of acoustic element, its physical dimension, quality size and with the quality that is connected of luffing bar, bigger to the resonance frequency and the service behaviour influence of ultrasonic vibration system.The coupling part of whole acoustics part should contact closely, otherwise will lose very macro-energy in the ultrasonic wave transmittance process.Preferably, adopt spiral marking connection between vibrating plate and the luffing bar, its spiral marking connection place is coated with vaseline grease, to prevent to exist the air gap.It is that zero " standing wave node " located to fix that transducer, luffing bar and vibrating plate should be chosen in amplitude.According to the composition principle of vibration, when system was in resonance state, only in this nodal point plane, stationary point, opposite with the lucky equal and opposite in direction of particle displacement, the direction that the opposite direction back wave causes to incidence wave from folk prescription, resultant displacement was zero.
Concrete operating principle of the present utility model is as follows: a kind of concrete method for oscillating that utilizes ultrasonic vibration, may further comprise the steps: produce high-frequency alternating current by ultrasonic generator, and high-frequency alternating current changed into the supersonic oscillations that the output of certain power is arranged, pass to transducer, transducer converts the supersonic oscillations that ultrasonic generator produces to mechanical oscillation, and amplitude is amplified to about 0.05~0.1mm by means of the luffing bar, drive vibrating plate and do ultrasonic vibration, the concrete aggregate is passed in vibration, make concrete produce the heavy liquid state, thereby make concrete closely knit.Because vibrations per second is nearly more than 16000 times, so can produce good closely knit effect.
The beneficial effects of the utility model are as follows: the utility model is by utilizing the concrete vibrator of ultrasonic vibration, and it is low to have a cost, the advantage of simple structure, high efficiency.
Claims (5)
Priority Applications (1)
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CN2010201504794U CN201627376U (en) | 2010-04-02 | 2010-04-02 | Concrete Vibration Device Using Ultrasonic Vibration |
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CN2010201504794U CN201627376U (en) | 2010-04-02 | 2010-04-02 | Concrete Vibration Device Using Ultrasonic Vibration |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102191645A (en) * | 2011-05-19 | 2011-09-21 | 绍兴文理学院 | Ultrasonic dyeing device |
CN104842029A (en) * | 2015-04-17 | 2015-08-19 | 首都航天机械公司 | Workpiece additional ultrasonic vibration device for ultrasonic electrical discharge machining |
-
2010
- 2010-04-02 CN CN2010201504794U patent/CN201627376U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102191645A (en) * | 2011-05-19 | 2011-09-21 | 绍兴文理学院 | Ultrasonic dyeing device |
CN104842029A (en) * | 2015-04-17 | 2015-08-19 | 首都航天机械公司 | Workpiece additional ultrasonic vibration device for ultrasonic electrical discharge machining |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20130402 |