CN101936071B - Low-noise concrete vibrating spear - Google Patents
Low-noise concrete vibrating spear Download PDFInfo
- Publication number
- CN101936071B CN101936071B CN201010259756XA CN201010259756A CN101936071B CN 101936071 B CN101936071 B CN 101936071B CN 201010259756X A CN201010259756X A CN 201010259756XA CN 201010259756 A CN201010259756 A CN 201010259756A CN 101936071 B CN101936071 B CN 101936071B
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- vibrating spear
- frequency
- control sensor
- concrete
- acoustic control
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Abstract
The invention relates to a concrete vibrating spear in building constructions, in particular to an instant-response noise reduction concrete vibrating spear. A sound control sensor is arranged on the vibrating spear, is electrically connected with a frequency changer and can drive the frequency changer to output currents with different frequencies, and the frequency changer is connected with a working power supply to output working current to a motor of the vibrating spear.
Description
Technical field
The present invention relates to the concrete vibration bar that uses in a kind of building operations.
Background technology
The concrete that the building trade construction is used is after stirring, and inside contains a large amount of gases, needs to improve concrete mobile performance with the mode of vibration, makes the gas release of inside concrete get rid of the purpose of reach the dense concrete member, gaining in strength.Existing jolt ramming mode has two kinds: be called the internal vibration rod with what vibration source placed inside concrete work; Place the concrete outside to be called outside vibrator vibration source through what the template transmitting vibrations was worked.
At present, the widely used inside concrete vibrating head of building trade mainly contains the planet impacting type, adorn centrifugal in the motor and liquid (gas) moving centrifugal, all to rotate to be the design core at a high speed.Its principle is utilizes centrifugal intertia force that eccentric mass when rotation produce or impact force as exciting force, and the height of vibration frequency is related to concrete flowing and exhaust performance.Motor speed is high more in theory, and vibration frequency is high more, and is good more to the concrete whole effect of smashing.But vibration frequency is high more, and the noise of generation is also big more, and shaking the noise pollution that brings at a high speed is the problem that can't ignore in using.
Publication number is that the patent document of CN2561873 has proposed a kind of low-noise concrete vibration bar, and its principle is at the inner speed change gear that adds of vibrating head, dynamically reduces centrifugal rotating speed of vibrating head, to reach the purpose of dynamic reduction noise.But still there are some shortcomings in this device: must rely on the rotating speed of artificial adjustment vibrating head, and can't the immediate reaction noise reduction.
Summary of the invention
The technical problem that the present invention will solve is: the concrete vibration bar that a kind of immediate reaction noise reduction is provided.
The object of the invention can reach through following measure: on vibrating head, be provided with an acoustic control sensor; Said acoustic control sensor is electrically connected and drives the electric current that it exports different frequency with a frequency converter; Said frequency converter cut-in operation power supply, the output services electric current is to the motor of said vibrating head.
(said fixed decibel value becomes according to different field conditions when the detected volume of said acoustic control sensor is lower than a fixed decibel value; Its value greater than 40 less than 100); The operating current of the said frequency converter output of said acoustic control sensor drive first frequency; When the detected volume of said acoustic control sensor is higher than said fixed decibel value, the operating current of the said frequency converter output of said acoustic control sensor drive second frequency.Described second frequency is less than first frequency, and what the rotating speed that convention can be known centrifugal of said vibrating head can be than under the first frequency under second frequency is little, thereby the noise that causes also can be less, reached the purpose of this programme; When the detected volume of said acoustic control sensor was lower than the fixed decibel value, the said frequency converter of said acoustic control sensor drive was exported first frequency again, and centrifugal rotating speed of said vibrating head increases, to reach better work.
The characteristics of technique scheme are: rely on sensor detection noise decibel to control centrifugal rotating speed of vibrating head, realized the immediate reaction noise reduction.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation:
Fig. 1 is the sketch map of the embodiment of the invention one;
Fig. 2 is the sketch map of the embodiment of the invention two.
The specific embodiment
Known concrete structure and characteristic are no longer set forth at this in this programme.As shown in Figure 1: as through bearing eccentric shaft 2 to be installed in the housing 1 of vibrating head; Eccentric shaft 2 is connected with the power output shaft of alternating current generator 3; Alternating current generator 3 pass through frequency converter 4 cut-in operation electric currents; Frequency converter 4 is connected with external ac power source 7 through cable 5, on housing 1, is provided with acoustic control sensor 6, and acoustic control sensor 6 inserts the PID input of frequency converter 4.
Under the vibrating head duty: when environmental volume during less than 80 decibels, acoustic control sensor 6 drive variable frequency devices 4 output frequencies are the operating current of 100Hz, and the rotating speed of alternating current generator 3 is 6000rpm; When acoustic control sensor 6 detected environmental volume more than or equal to 80 decibels, the operating current of its drive variable frequency device 4 output 50Hz made the rotating speed of alternating current generator 3 reduce to 3000rpm, thereby reaches the function of in real time automatic noise reduction.
Another embodiment is as shown in Figure 2: be with embodiment one difference: alternating current generator 3 is located at outside the housing 1; The power output shaft of alternating current generator 3 is connected with eccentric shaft 2 through flexible pipe 8; Frequency converter 4 is connected on the alternating current generator 3, and acoustic control sensor 6 is connected on the frequency converter 4.
Above-described only is preferred implementation of the present invention; Should be understood that; For a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement; These also should be regarded as protection scope of the present invention, and these can not influence effect and practical applicability that the present invention implements.
Claims (3)
1. low noise concrete vibration bar, comprise the built-in eccentric shaft of housing, said housing, with the motor that said eccentric shaft is connected, it is characterized in that: also be provided with the frequency converter that is electrically connected with said motor, other is provided with the acoustic control sensor of the said frequency converter output frequency of control.
2. low noise concrete vibration bar according to claim 1 is characterized in that: said frequency converter is located in the said housing.
3. low noise concrete vibration bar according to claim 1 and 2 is characterized in that: said acoustic control sensor is located on the said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010259756XA CN101936071B (en) | 2010-08-23 | 2010-08-23 | Low-noise concrete vibrating spear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010259756XA CN101936071B (en) | 2010-08-23 | 2010-08-23 | Low-noise concrete vibrating spear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101936071A CN101936071A (en) | 2011-01-05 |
| CN101936071B true CN101936071B (en) | 2012-01-11 |
Family
ID=43389622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010259756XA Expired - Fee Related CN101936071B (en) | 2010-08-23 | 2010-08-23 | Low-noise concrete vibrating spear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101936071B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587671B (en) * | 2011-11-02 | 2014-04-23 | 金可友 | Safe and portable high-frequency vibrating spear powered by battery |
| CN106088615A (en) * | 2016-08-16 | 2016-11-09 | 陈泳东 | A kind of concrete vibration stick |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU47183B (en) * | 1985-03-04 | 1995-01-31 | Halilović, Ešref | PLANET VIBRATOR |
| CN2251010Y (en) * | 1996-05-10 | 1997-04-02 | 深州市电机厂 | Direct-driven concrete vibrating spear |
| JP4104278B2 (en) * | 2000-08-09 | 2008-06-18 | 株式会社奥村組 | Concrete compaction apparatus and method |
| CN2527629Y (en) * | 2002-02-28 | 2002-12-25 | 刘永华 | Concrete vibrator |
| CN2561873Y (en) * | 2002-04-17 | 2003-07-23 | 台州市创美电机有限公司 | Low-noise concrete vibrating cylinder |
| CN2599141Y (en) * | 2003-03-17 | 2004-01-14 | 荣海文 | Low noise FM electromagnetic vibrator |
| ES2249081B1 (en) * | 2003-04-02 | 2007-04-16 | Industrias Techno-Flex, S.A. | "VIBRATOR DEVICE FOR COMPACTING CONCRETE". |
| CN201850775U (en) * | 2010-08-23 | 2011-06-01 | 重庆城建控股(集团)有限责任公司 | Low-noise concrete vibration rod |
-
2010
- 2010-08-23 CN CN201010259756XA patent/CN101936071B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101936071A (en) | 2011-01-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20190823 |
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| CF01 | Termination of patent right due to non-payment of annual fee |