CN1885033A - Mechanical cement slurry vibration tester - Google Patents
Mechanical cement slurry vibration tester Download PDFInfo
- Publication number
- CN1885033A CN1885033A CN 200510077725 CN200510077725A CN1885033A CN 1885033 A CN1885033 A CN 1885033A CN 200510077725 CN200510077725 CN 200510077725 CN 200510077725 A CN200510077725 A CN 200510077725A CN 1885033 A CN1885033 A CN 1885033A
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- shaking platform
- vibration
- cement slurry
- vibrator
- centrifugal vibrator
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Abstract
The invention relates to a mechanical cement slurry vibration tester, with variable frequency, wherein said tester comprises a vibration table 2, an anti-vibration base 4, a speed-adjusting motor 5, and an eccentric vibrator 7; the lower end of base 4 is fixed on the ground, while the upper end via spring supports the vibration table 2; the vibration table 2 is above the eccentric vibrator 7, while its bottom contacts the upper surface of circumference of vibrator 7; the axle center of vibrator 7 is vertically fixed on the main axle of speed-adjusting motor 5 connected to the circuit of frequency converter 3; when the motor rotates, the eccentric vibrator vibrates the vibration table up and down; the vibration table 2 is arranged with temperature detecting element and heating element which are both connected to the temperature controller 1 outside the vibration table 1. The inventive tester can be used to test the solidify parameters of cement slurry at certain amplitude, vibration frequency, temperature and time.
Description
Technical field
The present invention relates to a kind of mechanical vibrator, particularly a kind of vibration tester of variable ratio frequency changer vibration.
Background technology
" a kind of amplitude modulated oscillations device " patent No. ZL01234137.1, this is a kind of amplitude modulated oscillations platform that produces mechanical vibration and can regulate and control the Oscillation Amplitude size by rotation.Its shortcoming is, this device can not the continuous transformation vibration frequency, can not carry out temperature control.
Summary of the invention
The objective of the invention is: but a kind of vibration test instrument that utilizes mechanical type vibration continuous transformation vibration frequency and Oscillation Amplitude and the control temperature function is arranged is provided.
The present invention solves the scheme that its technical matters adopts: this instrument comprises parts such as shaking platform, quake-proof seat, adjustable speed motor, centrifugal vibrator.
The lower end of wherein said quake-proof seat fixes on the ground, and the upper end of quake-proof seat supports shaking platform through spring; Shaking platform is positioned at the top of centrifugal vibrator, and the base plane of shaking platform contacts with the periphery upper surface of centrifugal vibrator, and centrifugal vibrator is vertically fixed on its axle center on the main shaft of adjustable speed motor, and adjustable speed motor is connected with convertible circuit.When motor rotates, drive the shaking platform up-down vibration by centrifugal vibrator.
The shaking platform and the optimum seeking site between the centrifugal vibrator of test instrument of the present invention are: when the spring of quake-proof seat was the natural relaxation state, the contacted point of the periphery of centrifugal vibrator and shaking platform was the shortest eccentric throw to the distance in oscillator axle center.
The shaking platform of test instrument of the present invention is provided with detector unit and heating element, all is connected with the outer temperature controller that is provided with of shaking platform.The setting range of temperature can be to 95 ℃ from room temperature.
The frequency of frequency converter is greater than 0Hz, smaller or equal to 25Hz in the test instrument of the present invention.
Test instrument of the present invention can be regulated the amplitude of described shaking platform by the centrifugal vibrator of changing different maximum eccentricities, and its amplitude range is greater than 0mm, smaller or equal to 4.2mm.
When electric machine main shaft in the test instrument of the present invention rotated, centrifugal vibrator rotated thereupon.With the i.e. up-down vibration along with its rotation of the contacted shaking platform of centrifugal vibrator periphery, the amplitude that can make shaking platform according to the centrifugal vibrator of the different maximum eccentricities of transposing is adjusted in greater than 0mm, scope smaller or equal to 4.2mm.The rotational frequency of described electric machine main shaft can be adjusted continuously by frequency converter, so the vibration frequency of shaking platform also can realize continuous adjusting by the frequency of adjusting frequency converter, and can make vibration frequency is greater than 0Hz, smaller or equal to 25Hz.
Centrifugal vibrator in the test instrument of the present invention, adjustable speed motor, frequency converter, heating element, temperature sensor and above-described temperature controller all can adopt in the prior art existing various related elements and or instrument etc.Generally can select frequency resolution for use is that frequency converter, the temperature control precision of 0.01Hz reaches 0.1 ℃ temperature controller.
The invention has the beneficial effects as follows: mechanical cement slurry vibration tester provided by the invention can produce greater than 0Hz, smaller or equal to the arbitrary vibration frequency between the 25Hz vibration frequency, can produce greater than 0mm, smaller or equal to the arbitrary Oscillation Amplitude among the 4.2mm Oscillation Amplitude, can produce the arbitrary temperature from ℃ experimental temperature of room temperature～95.This vibration tester is applied in the test that grout solidifies parameter the grout sample is positioned on the shaking platform, can obtains grout at specified temp, certain vibration frequency, the various data under the specific vibration amplitude in the process of setting.
Description of drawings
Fig. 1 is the synoptic diagram that each parts of mechanical cement slurry vibration tester of the present invention connect.
Embodiment
Be described in further detail below in conjunction with the embodiment of accompanying drawing mechanical cement slurry vibration tester of the present invention.
Fig. 1 is each parts connection diagram of mechanical cement slurry vibration tester.The lower end of quake-proof seat 4 fixes on the ground by foot bolt among the figure, and the upper end supports shaking platform 2 by spring.Spring on the quake-proof seat 4 draws shaking platform 2 top that leans against centrifugal vibrator 7.The base plane of shaking platform 2 contacts with the periphery upper surface of centrifugal vibrator 7.Described centrifugal vibrator 7 is vertically fixed on its axle center on the main shaft of adjustable speed motor 5, and adjustable speed motor 5 is connected with frequency converter 3 by circuit.The shaking platform 2 of test instrument of the present invention is provided with detector unit and heating element, all is connected with the shaking platform 2 outer temperature controllers 1 that are provided with.
When the spring of quake-proof seat 4 was the natural relaxation state, the periphery of centrifugal vibrator 7 and shaking platform 2 contacted points were the shortest eccentric throw to the distance in its axle center.Along with the rotation of centrifugal vibrator 7, when this contact point when the distance in oscillator axle center is maximum eccentricity, the spring tension that centrifugal vibrator 7 overcomes on the quake-proof seat 4 holds up shaking platform 2, shaking platform 2 is raised to most significant end; When this contact point to distance of shaft centers from for hour, the spring on the quake-proof seat 4 is withdrawn into extreme lower position with shaking platform 2, thereby shaking platform 2 is up and down reciprocatingly vibrated.
Frequency converter 3 is connected with adjustable speed motor 5 circuit, and the frequency setting resolution of frequency converter 3 is 0.01Hz; Vibration frequency can be set in this scope internal vibration frequency continuously greater than 0Hz, smaller or equal to 25Hz.The power that frequency converter 3 is exported is exactly the power of adjustable speed motor 5.Can regulate the amplitude of described shaking platform by the centrifugal vibrator 7 of changing different maximum eccentricities, its amplitude range is greater than 0mm, smaller or equal to 4.2mm.
The heater block of test instrument of the present invention itself separates with the synthermal controller 1 of temperature detection part, by lead two synthermal respectively controllers of parts is coupled together.Heater block and temperature detection part place shaking platform 2 above, temperature controller 1 itself do not contact with shaking platform 2, thereby avoided the destruction of vibration to temperature controller 1.The temperature control precision of temperature controller reaches 0.1 ℃, maximum heating power 4000W, 95 ℃ of maximum heating temperatures.Testing required temperature can be by this temperature controller from the continuous setting of room temperature.
When test instrument of the present invention is applied to the grout setting test, grout is positioned on the shaking platform 2.Behind certain temperature, vibration frequency, Oscillation Amplitude and time of vibration, again the grout that is placed on the shaking platform 2 is carried out every performance detection, with do not vibrate or other vibration parameters under performance compare, can find out the optimal parameter of grout every performance in solidification process.
Claims (4)
1. mechanical cement slurry vibration tester, involving vibrations platform (2), quake-proof seat (4), adjustable speed motor (5), centrifugal vibrator (7) is characterized in that:
The lower end of described quake-proof seat (4) fixes on the ground, and the upper end of quake-proof seat (4) supports shaking platform (2) through spring; Shaking platform (2) is positioned at the top of centrifugal vibrator (7), the base plane of shaking platform (2) contacts with the periphery upper surface of centrifugal vibrator (7), centrifugal vibrator (7) is vertically fixed on its axle center on the main shaft of adjustable speed motor (5), and adjustable speed motor (5) is connected with frequency converter (3) circuit;
Shaking platform (2) is provided with detector unit and heating element, all is connected with the outer temperature controller (1) that is provided with of shaking platform (2).
2. mechanical cement slurry vibration tester according to claim 1 is characterized in that when the spring of described quake-proof seat (4) is the natural relaxation state the contacted point of the periphery of centrifugal vibrator (7) and shaking platform is minimum offset distance to the distance in axle center.
3. mechanical cement slurry vibration tester according to claim 1, the frequency that it is characterized in that frequency converter (3) is greater than 0Hz, smaller or equal to 25Hz.
4. mechanical cement slurry vibration tester according to claim 1 is characterized in that: regulate the amplitude of described shaking platform by the centrifugal vibrator (7) of changing different maximum eccentricities, its amplitude range is greater than 0mm, smaller or equal to 4.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100777251A CN100573148C (en) | 2005-06-24 | 2005-06-24 | Mechanical cement slurry vibration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100777251A CN100573148C (en) | 2005-06-24 | 2005-06-24 | Mechanical cement slurry vibration tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1885033A true CN1885033A (en) | 2006-12-27 |
| CN100573148C CN100573148C (en) | 2009-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100777251A Active CN100573148C (en) | 2005-06-24 | 2005-06-24 | Mechanical cement slurry vibration tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100573148C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813610A (en) * | 2010-04-15 | 2010-08-25 | 河海大学 | Testing device of volume compression coefficient of freshly mixed concrete under side-limit condition and testing method thereof |
| CN102699979A (en) * | 2012-05-14 | 2012-10-03 | 昆山南方铸造有限公司 | Vibrating table processing fixture for engineering machinery cement balance weight |
| CN104075864A (en) * | 2014-06-30 | 2014-10-01 | 苏州固基电子科技有限公司 | Perpendicular vibration table with adjustable output frequency |
| CN107389905A (en) * | 2017-08-03 | 2017-11-24 | 贵州精正检测有限公司 | Concrete NDT examines equipment and concrete NDT checking system |
-
2005
- 2005-06-24 CN CNB2005100777251A patent/CN100573148C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813610A (en) * | 2010-04-15 | 2010-08-25 | 河海大学 | Testing device of volume compression coefficient of freshly mixed concrete under side-limit condition and testing method thereof |
| CN101813610B (en) * | 2010-04-15 | 2015-04-29 | 河海大学 | Testing device of volume compression coefficient of freshly mixed concrete under side-limit condition and testing method thereof |
| CN102699979A (en) * | 2012-05-14 | 2012-10-03 | 昆山南方铸造有限公司 | Vibrating table processing fixture for engineering machinery cement balance weight |
| CN104075864A (en) * | 2014-06-30 | 2014-10-01 | 苏州固基电子科技有限公司 | Perpendicular vibration table with adjustable output frequency |
| CN107389905A (en) * | 2017-08-03 | 2017-11-24 | 贵州精正检测有限公司 | Concrete NDT examines equipment and concrete NDT checking system |
| CN107389905B (en) * | 2017-08-03 | 2019-08-20 | 首钢水城钢铁(集团)赛德建设有限公司 | Concrete NDT examines equipment and concrete NDT checking system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100573148C (en) | 2009-12-23 |
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