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CN201627376U - Concrete Vibration Device Using Ultrasonic Vibration - Google Patents

Concrete Vibration Device Using Ultrasonic Vibration Download PDF

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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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China
Prior art keywords
ultrasonic
transducer
vibration
concrete
ultrasonic vibration
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN2010201504794U
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Chinese (zh)
Inventor
黄德中
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University of Shaoxing
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University of Shaoxing
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Priority to CN2010201504794U priority Critical patent/CN201627376U/en
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Publication of CN201627376U publication Critical patent/CN201627376U/en
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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

Utilize the concrete vibrator of ultrasonic vibration
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)

1.一种利用超声波振动的砼振动装置,其特征在于,包括:1. A concrete vibrating device utilizing ultrasonic vibration, characterized in that, comprising: 超声发生器:通过超声发生器产生高频交流电,并将高频交流电转变为有一定功率输出的超声波振荡,提供振动板作往复振动所需的能量;Ultrasonic generator: generate high-frequency alternating current through the ultrasonic generator, and convert the high-frequency alternating current into ultrasonic oscillation with a certain power output, providing the energy required for the reciprocating vibration of the vibrating plate; 换能器;换能器与超声发生器相连,将超声发生器产生的超声波振荡转换成机械振动;Transducer; the transducer is connected with the ultrasonic generator to convert the ultrasonic vibration generated by the ultrasonic generator into mechanical vibration; 变幅杆:变幅杆与换能器相连,将换能器获得的超声振动的振幅加以放大,以得到超声振捣所需要的振幅;Horn: The horn is connected to the transducer to amplify the amplitude of the ultrasonic vibration obtained by the transducer to obtain the amplitude required for ultrasonic vibration; 振动板:振动板与变幅杆相连,接收经变幅杆放大后传递的超声振动,把振动传给砼骨料。Vibrating plate: The vibrating plate is connected with the horn, receives the ultrasonic vibration transmitted after being amplified by the horn, and transmits the vibration to the concrete aggregate. 2.根据权利要求1所述的一种利用超声波振动的砼振动装置,其特征在于:换能器采用压电效应换能器或磁致伸缩效应换能器。2. A concrete vibrating device using ultrasonic vibration according to claim 1, characterized in that: the transducer adopts a piezoelectric effect transducer or a magnetostrictive effect transducer. 3.根据权利要求1所述的一种利用超声波振动的砼振动装置,其特征在于:变幅杆为变截面杆,设置有两根。3. A concrete vibrating device using ultrasonic vibration according to claim 1, characterized in that: the horns are variable-section rods, and there are two horns. 4.根据权利要求3所述的一种利用超声波振动的砼振动装置,其特征在于:变幅杆采用声阻小、疲劳强度高材料制成,通过变幅杆可以把振幅放大到0.05~0.1mm。4. A concrete vibrating device using ultrasonic vibration according to claim 3, characterized in that: the horn is made of a material with low sound resistance and high fatigue strength, and the amplitude can be amplified to 0.05-0.1 mm. 5.根据权利要求1所述的一种利用超声波振动的砼振动装置,其特征在于:振动板与变幅杆之间采用螺纹联结,其螺纹联结处涂以凡士林油脂,以防止存在空气间隙。5. A concrete vibrating device using ultrasonic vibration according to claim 1, characterized in that: the vibrating plate and the horn are connected by threads, and the thread connections are coated with Vaseline grease to prevent air gaps.
CN2010201504794U 2010-04-02 2010-04-02 Concrete Vibration Device Using Ultrasonic Vibration Expired - Fee Related CN201627376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201504794U CN201627376U (en) 2010-04-02 2010-04-02 Concrete Vibration Device Using Ultrasonic Vibration

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Application Number Priority Date Filing Date Title
CN2010201504794U CN201627376U (en) 2010-04-02 2010-04-02 Concrete Vibration Device Using Ultrasonic Vibration

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Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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C17 Cessation of patent right
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Granted publication date: 20101110

Termination date: 20130402