CN203929716U - Electric transmission pole tower basic crack pick-up unit - Google Patents
Electric transmission pole tower basic crack pick-up unit Download PDFInfo
- Publication number
- CN203929716U CN203929716U CN201420282046.2U CN201420282046U CN203929716U CN 203929716 U CN203929716 U CN 203929716U CN 201420282046 U CN201420282046 U CN 201420282046U CN 203929716 U CN203929716 U CN 203929716U
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- chip microcomputer
- housing
- electromagnetic exciter
- modular converter
- vibration transducer
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Abstract
The utility model discloses a kind of electric transmission pole tower basic crack pick-up unit, comprise input key and the display module of single-chip microcomputer, connection single-chip microcomputer, it is characterized in that: be provided with electromagnetic exciter and vibration transducer, the output terminal of described vibration transducer connects single-chip microcomputer through A/D modular converter, and single-chip microcomputer is connected the control end of electromagnetic exciter with driver module through D/A modular converter; Be provided with housing, described single-chip microcomputer and being arranged in described housing with the direct-connected circuit of single-chip microcomputer, described electromagnetic exciter independently arranges and is connected with the circuit in housing through electric wire; In the time that electric wire is processed extended state, the distance of electromagnetic exciter and vibration transducer is not less than 5cm.The utility model can be realized easily basic crack and detect, and simple in structure, cost is low, and convenient operation detects accurately and reliably, and is convenient for carrying.
Description
Technical field
The utility model relates to a kind of device for the crack on electric transmission pole tower basis is detected.
Background technology
Electric power pylon is a kind of important engineering structure, and its basis is xoncrete structure.Because transmission line of electricity is longer, the variation of geologic condition, basis easily produces non-uniform settling, under the factor such as variation, the field construction difficulty impact of structure fabrication alignment error, material, especially easily produces incipient crack.Simultaneously, because it is in field, wind action is large and wind direction is indefinite, draws, depression bar role often converts, and causes basic load-bearing repeatedly to change, and crack constantly expands, extreme natural environment corrosion reinforcement foundation.Therefore, electric power pylon basis is used after certain time limit, often there will be more serious crack, and reinforcement corrosion is very fast, greatly shortens concrete foundation serviceable life.Crack Detection regularly being carried out in the basis of electric transmission pole tower, thereby carry out in time consolidation process, is important measures that prevent transmission line malfunction.
In the 7th phase of " concrete " calendar year 2001 " high voltage electric power line steel tower base concrete cracking detects and an analyzes " literary composition, in known basis, exist under the prerequisite in a large amount of cracks, adopt reading microscope and ultrasound wave lossless detection instrument to detect respectively width and the degree of depth of surface crack, adopt core drilling method that basic concrete strength is tested and analyzed, thereby provide data basis for analyzing Cracks and design reinforcement scheme.But the equipment cost that this method adopts is high, and is difficult to detect unknown crack.
Because China is vast in territory, route of power transmission is longer, and degree of injury differs greatly, and the in the situation that of power-off easily, detecting electric power pylon base concrete crack becomes a difficult point in power construction.At present, conventionally patrolled and examined along route of power transmission by testing staff, adopt hand hammer to knock, by listening sound to judge, the method requires very high for operating personnel's experience, otherwise is difficult to the effect that reaches satisfied.Therefore, there is great demand for portable easy-to-use electric transmission pole tower basic crack pick-up unit.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of portable easy-to-use electric transmission pole tower basic crack pick-up unit, to adapt to the conventional sense demand to transmission line of electricity.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of electric transmission pole tower basic crack pick-up unit, comprise input key and the display module of single-chip microcomputer, connection single-chip microcomputer, be provided with electromagnetic exciter and vibration transducer, the output terminal of described vibration transducer connects single-chip microcomputer through A/D modular converter, and single-chip microcomputer is connected the control end of electromagnetic exciter with driver module through D/A modular converter; Be provided with housing, described single-chip microcomputer and being arranged in described housing with the direct-connected circuit of single-chip microcomputer, described electromagnetic exciter independently arranges and is connected with the circuit in housing through electric wire; In the time that electric wire is processed extended state, the distance of electromagnetic exciter and vibration transducer is not less than 5cm.
In technique scheme, provide a kind of portable electric transmission pole tower basic crack pick-up unit, utilize electromagnetic exciter on electric transmission pole tower basis, to form vibration, vibration wave comprises the surface wave of propagating along surface of base, and the longitudinal elastic wave of propagating to basic internal, in the time there is crack in basis, there is diffraction in longitudinal elastic wave, returns to surface of base at crack place.Thus, surface wave and longitudinal elastic wave can be detected respectively by vibration transducer, thereby realize Crack Detection.
Further technical scheme, described D/A modular converter and drive module setting are in housing, and described housing is provided with the socket being electrically connected with described driver module; The wire terminations being connected with electromagnetic exciter is provided with the plug mating with described socket.
Or described D/A modular converter is arranged in housing, described housing is provided with the socket being electrically connected with described D/A modular converter, and described drive module setting is on electromagnetic exciter, and the input end of driver module connects described electric wire; The other end of described electric wire is provided with the plug mating with described socket.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, the utility model provides a kind of portable electric transmission pole tower basic crack pick-up unit, can realize easily basic crack and detect, and simple in structure, cost is low, convenient operation;
2, the utility model adopts electromagnetic exciter to replace artificial hammering, can effectively control waveform and the frequency of shock wave, utilizes vibration transducer to obtain vibration signal simultaneously, does not need to utilize operating personnel's micro-judgment, detects accurately and reliably;
3, the utility model adopts single-chip microcomputer as main control chip, and circuit is simple, and volume is little, is easy to carry.
Brief description of the drawings
Fig. 1 is the structured flowchart of embodiment;
Fig. 2 is Crack Detection schematic diagram in embodiment.
Wherein: 1, electromagnetic exciter; 2, sensor; 3, electric transmission pole tower basis; 4, crack.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment mono-: shown in Figure 1, a kind of electric transmission pole tower basic crack pick-up unit, comprise input key and the display module of single-chip microcomputer, connection single-chip microcomputer, be provided with electromagnetic exciter and vibration transducer, the output terminal of described vibration transducer connects single-chip microcomputer through A/D modular converter, and single-chip microcomputer is connected the control end of electromagnetic exciter with driver module through D/A modular converter; Be provided with housing, described single-chip microcomputer and being arranged in described housing with the direct-connected circuit of single-chip microcomputer, described electromagnetic exciter independently arranges and is connected with the circuit in housing through electric wire; In the time that electric wire is processed extended state, the distance of electromagnetic exciter and vibration transducer is not less than 5cm.Wherein, single-chip microcomputer can adopt ARM chip.
The detection principle of the present embodiment is shown in Figure 2, electromagnetic exciter 1 and sensor 2 are placed respectively in electric transmission pole tower basis 3 in the both sides that may have 4 positions, crack, single-chip microcomputer sends control signal, convert control waveform to through D/A modular converter, drive electromagnetic exciter to vibrate at beating point place by driver module, the surface wave producing is passed to vibration transducer along surface of base, the longitudinal elastic wave producing is propagated in basic internal, during through crack place, occur to be passed to vibration transducer after diffraction, the signal that vibration transducer receives converts digital signal to through A/D modular converter and is sent to single-chip microcomputer, single-chip microcomputer carries out signal processing accordingly, obtain crack location information, on display module, show.For example, when the degree of depth in crack is h, velocity of wave is V
pand the resonant frequency of stress wave is while being f, meets following formula:
h=(a
sV
p)/(2f)
In formula, a
sfor cross-sectional geometry coefficient.Can obtain accordingly the depth information in crack.
Claims (3)
1. an electric transmission pole tower basic crack pick-up unit, comprise input key and the display module of single-chip microcomputer, connection single-chip microcomputer, it is characterized in that: be provided with electromagnetic exciter and vibration transducer, the output terminal of described vibration transducer connects single-chip microcomputer through A/D modular converter, and single-chip microcomputer is connected the control end of electromagnetic exciter with driver module through D/A modular converter; Be provided with housing, described single-chip microcomputer and being arranged in described housing with the direct-connected circuit of single-chip microcomputer, described electromagnetic exciter independently arranges and is connected with the circuit in housing through electric wire; In the time that electric wire is processed extended state, the distance of electromagnetic exciter and vibration transducer is not less than 5cm.
2. electric transmission pole tower basic crack pick-up unit according to claim 1, is characterized in that: described D/A modular converter and drive module setting are in housing, and described housing is provided with the socket being electrically connected with described driver module; The wire terminations being connected with electromagnetic exciter is provided with the plug mating with described socket.
3. electric transmission pole tower basic crack pick-up unit according to claim 1, it is characterized in that: described D/A modular converter is arranged in housing, described housing is provided with the socket being electrically connected with described D/A modular converter, described drive module setting is on electromagnetic exciter, and the input end of driver module connects described electric wire; The other end of described electric wire is provided with the plug mating with described socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282046.2U CN203929716U (en) | 2014-05-29 | 2014-05-29 | Electric transmission pole tower basic crack pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282046.2U CN203929716U (en) | 2014-05-29 | 2014-05-29 | Electric transmission pole tower basic crack pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929716U true CN203929716U (en) | 2014-11-05 |
Family
ID=51825515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282046.2U Expired - Fee Related CN203929716U (en) | 2014-05-29 | 2014-05-29 | Electric transmission pole tower basic crack pick-up unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203929716U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157757A (en) * | 2015-10-20 | 2015-12-16 | 国网重庆市电力公司电力科学研究院 | Geological environment monitoring method and apparatus |
| CN105738471A (en) * | 2014-12-11 | 2016-07-06 | 安徽惠洲地质安全研究院股份有限公司 | Portable intelligent electronic wall-tapping and roof-knocking apparatus |
| CN108680321A (en) * | 2018-04-12 | 2018-10-19 | 西安工程大学 | A kind of electric power pylon structural damage on-line monitoring system and monitoring method |
-
2014
- 2014-05-29 CN CN201420282046.2U patent/CN203929716U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738471A (en) * | 2014-12-11 | 2016-07-06 | 安徽惠洲地质安全研究院股份有限公司 | Portable intelligent electronic wall-tapping and roof-knocking apparatus |
| CN105738471B (en) * | 2014-12-11 | 2018-06-19 | 安徽惠洲地质安全研究院股份有限公司 | A kind of smart electronics tap portable instrument |
| CN105157757A (en) * | 2015-10-20 | 2015-12-16 | 国网重庆市电力公司电力科学研究院 | Geological environment monitoring method and apparatus |
| CN108680321A (en) * | 2018-04-12 | 2018-10-19 | 西安工程大学 | A kind of electric power pylon structural damage on-line monitoring system and monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20200529 |