CN204416423U - Condenser travelling apron longitudinal tear detection alarm device - Google Patents
Condenser travelling apron longitudinal tear detection alarm device Download PDFInfo
- Publication number
- CN204416423U CN204416423U CN201520066872.8U CN201520066872U CN204416423U CN 204416423 U CN204416423 U CN 204416423U CN 201520066872 U CN201520066872 U CN 201520066872U CN 204416423 U CN204416423 U CN 204416423U
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- China
- Prior art keywords
- adhesive tape
- travelling apron
- condenser
- circuit
- alarm device
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- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 239000002390 adhesive tape Substances 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 238000012546 transfer Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model provides a kind of condenser travelling apron longitudinal tear detection alarm device, install to arrange two groups of symmetrical and equal planar capacitance sensors 2 and planar capacitance sensor 3 and be connected to capacitive detection circuit below adhesive tape 1 and capacitance detecting is carried out to the adhesive tape as medium, capacitive detection circuit connects High Precision Rectifying Circuit after converting the capacitance detected to voltage signal respectively successively, differential amplifier circuit, A/D change-over circuit is to micro controller system, the signal received is carried out data processing by micro controller system, when this signal intensity exceedes threshold value, micro controller system output alarm.The utility model structure is simple, and installation is convenient, and cost is low, disturbance rejection, is applicable to General Purpose Rubber load-transfer device and steel cable core conveying belt, and the damaged and timely detection alarm of tearing energy to tape surface, Accident prevention expands.
Description
Technical field
The utility model relates to travelling apron Automatic Measurement Technique field, especially to the technology of the timely detection alarm of longitudinal rupture of adhesive tape accident of travelling apron emerged in operation.
Background technology
Travelling apron is a kind of widely used moving material load transfer device; rubber conveyer belt is the chief component of travelling apron; about its cost accounts for the half of whole travelling apron; due in the material conveying process of different operating mode; often cause longitudinal rupture of adhesive tape because of sharp-pointed foreign matter, material blocking, rubber belt from deviating, the steel rope reason such as to loose core; as can not Timeliness coverage and and alarm shut down, will cause a serious accident and economic loss.
At present the detection mode of travelling apron longitudinal tear is mainly contained: x-ray detection mode, pre-buried (coil) mode, super sonic mode, CCD imaging mode, infrared mode, RF-wise etc., these modes respectively have merits and faults, shortcoming is complex structure mainly, cost is high, site environment is required harsh, need to carry out secondary processing etc. to adhesive tape, also have simple as conductive rubber type, string of a musical instrument type, leak material detection type etc., this kind of method of inspection all can not detect timely and accurately to the damage of tape surface, can only after adhesive tape be pierced through by foreign matter and the switching mechanism touched below adhesive tape or simultaneously have enough material to leak down just to be found to pallet after being pierced through by foreign matter.
Utility model content
In order to overcome defect existing for current travelling apron longitudinal tear detection alarm device and deficiency, the utility model provides a kind of condenser travelling apron longitudinal tear detection alarm device.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of condenser travelling apron longitudinal tear detection alarm device, installs and arranges some groups of multiplanar conductive pole plates formation planar capacitance sensors below the adhesive tape of travelling apron.
Described some groups of multiplanar conductive pole plates are separately combined as symmetrical and that capacitance is equal two groups of planar capacitance sensors from the longitudinal centerline of adhesive tape.
Described two groups of planar capacitance sensors are connected to capacitive detection circuit, High Precision Rectifying Circuit, differential amplifier circuit, A/D change-over circuit, micro controller system and show circuit, alarm loop and data communication loop respectively.
Further, the spacing of multiplanar conductive pole plate is 0.5 millimeter to 9 millimeters.
Further, the multiplanar conductive pole plate installing setting below the adhesive tape of travelling apron is double layout.
The utility model is installed and is arranged some groups of multiplanar conductive pole plates formation planar capacitance sensors below the adhesive tape of travelling apron, planar capacitance sensor is separately combined as the symmetrical and two groups of planar capacitance sensors that capacitance is equal of left and right quantity from adhesive tape longitudinal centerline, two groups of planar capacitance sensors connect two-way capacitive detection circuit respectively, capacitive detection circuit by the value of two groups of planar capacitance sensors that detects through oscillator, High Precision Rectifying Circuit is outputed voltage signal to after frequency/voltage change-over circuit and low-pass filter, voltage signal through rectification curbs common mode interference signal to differential amplifier circuit, simultaneously by be punctured by foreign matter because of adhesive tape or tear caused accident difference mode signal amplify after through A/D change-over circuit to micro controller system, the signal received is carried out data processing by micro controller system, when to be punctured or tear micro controller system output alarm when caused signal intensity exceedes set threshold value by foreign matter because of adhesive tape.
The beneficial effects of the utility model are, structure is simple, cost is low, installation is convenient, is widely used in General Purpose Rubber load-transfer device and steel cable core conveying belt, and online Non-contact nondestructive detects, without ray contamination, the impact of the interfering signal that the wireline adapter etc. in adhesive tape shake in not running by installation environment and adhesive tape, sideslip, temperature traverse and steel cord belt produces, the damaged and timely detection alarm of tearing energy to tape surface, Accident prevention expands.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is planar capacitance sensor Cleaning Principle schematic diagram.
Fig. 3 is the utility model schematic circuit diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model to illustrative examples of the present utility model and explanation at this, but not as to restriction of the present utility model.
As shown in Figure 1, the utility model provides a kind of condenser travelling apron longitudinal tear detection alarm device, install below adhesive tape 1 and some groups of multiplanar conductive pole plates formation planar capacitance sensors are set, planar capacitance sensor is two groups, left and right symmetry and equal capacitive transducer 2 and capacitive transducer 3 from the longitudinal centerline punishment of adhesive tape 1, capacitive transducer 2 is connected with two-way capacitive detection circuit respectively with capacitive transducer 3, capacitive detection circuit by the capacitance Cx1 that detects and Cx2 through oscillator, High Precision Rectifying Circuit is outputed voltage signal to after frequency/voltage change-over circuit and low-pass filter, voltage signal through rectification curbs common mode interference signal to differential amplifier circuit, simultaneously by be punctured by foreign matter because of adhesive tape 1 or tear caused accident difference mode signal amplify after through A/D change-over circuit to micro controller system, the signal received is carried out data processing by micro controller system, the micro controller system output alarm when adhesive tape 1 occurs to be punctured or tear accident by foreign matter.
As shown in Figure 2, the change of the utility model using planar capacitive transducer Cleaning Principle to the adhesive tape capacitance as medium detects.
Using the medium of adhesive tape as planar capacitance sensor, capacitance is now:
In formula: Cx is the capacitance of tested adhesive tape;
A is conductive plate spacing;
B is conductive plate width;
L is conductive plate length;
for the specific inductance capacity of measured medium.
When plate dimensions and pole plate relative position one timing, order
, then
.
If dielectric specific inductance capacity between plane pole plate
change, namely when adhesive tape is damaged or when tearing its
to change, then the capacitance Cx of tested region adhesive tape also will change thereupon, so detect the changing value of Cx, also just can detect whether adhesive tape occurs breakage or tear.
As shown in Figure 3, as the one of embodiment of the present utility model, by planar capacitance sensor from the punishment of the longitudinal centerline of adhesive tape 1 for the symmetrical and equal planar capacitance sensor 2 in two groups, left and right is connected with planar capacitance sensor 3 and with two-way capacitive detection circuit, measured capacitance Cx1 and Cx2 is as the cond of the measuring oscillator of capacitive detection circuit, by producing oscillation period to its discharge and recharge, this oscillation period and measured capacitance size linear, a voltage signal is exported after frequency/voltage change-over circuit and low-pass filter, required voltage signal Vd1 and Vd2 is obtained again through the output stage that zero point is adjustable, two-way voltage signal Vd1 and Vd2 delivers to two High Precision Rectifying Circuits respectively and carries out rectification, voltage signal after rectification is delivered to differential amplifier circuit and is amplified, because differential amplifier circuit has higher common-mode rejection ratio, can will shake because of adhesive tape 1, sideslip, the common mode interference signal that wireline adapter etc. in temperature traverse and steel cord belt produces curbs, and simultaneously by adhesive tape 1 by foreign object damage or when tearing the accident differential mode voltage variable signal that produces amplify after carry out data processing through A/D change-over circuit to micro controller system, the micro controller system output alarm when this signal intensity exceedes threshold value.
The utility model structure is simple, cost is low, installation is convenient, be widely used in General Purpose Rubber load-transfer device and steel cable core conveying belt, online Non-contact nondestructive detects, without ray contamination, and the impact of the interfering signal that the wireline adapter etc. in adhesive tape shake in not running by installation environment and adhesive tape, sideslip, temperature traverse and steel cord belt produces, damaged and the timely detection alarm of tearing energy to tape surface, Accident prevention expands.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment; can combine by another way; the capacitive detection circuit of other kinds is adopted to measure; every technology distortion made according to the technical solution of the utility model and principle, all falls within protection domain of the present utility model.
Claims (5)
1. condenser travelling apron longitudinal tear detection alarm device, is characterized in that: install below the adhesive tape (1) of travelling apron and be provided with some groups of multiplanar conductive pole plates.
2. condenser travelling apron longitudinal tear detection alarm device according to claim 1, is characterized in that: some groups of multiplanar conductive pole plates are separately combined as symmetrical and the planar capacitance sensor (2) that capacitance is equal and planar capacitance sensor (3) from the longitudinal centerline of adhesive tape (1).
3. condenser travelling apron longitudinal tear detection alarm device according to claim 1, is characterized in that: planar capacitance sensor (2) and planar capacitance sensor (3) are connected to capacitive detection circuit, High Precision Rectifying Circuit, differential amplifier circuit, A/D change-over circuit, micro controller system and show circuit, alarm loop and data communication loop respectively.
4. condenser travelling apron longitudinal tear detection alarm device according to claim 1, is characterized in that: the spacing of multiplanar conductive pole plate is 0.5 millimeter to 9 millimeters.
5. according to claim 1 condenser glue (belt conveyor longitudinal tear detection alarm device, is characterized in that: below the adhesive tape (1) of travelling apron install arrange multiplanar conductive pole plate be two rows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066872.8U CN204416423U (en) | 2015-01-30 | 2015-01-30 | Condenser travelling apron longitudinal tear detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520066872.8U CN204416423U (en) | 2015-01-30 | 2015-01-30 | Condenser travelling apron longitudinal tear detection alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204416423U true CN204416423U (en) | 2015-06-24 |
Family
ID=53466812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520066872.8U Expired - Fee Related CN204416423U (en) | 2015-01-30 | 2015-01-30 | Condenser travelling apron longitudinal tear detection alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204416423U (en) |
-
2015
- 2015-01-30 CN CN201520066872.8U patent/CN204416423U/en not_active Expired - Fee Related
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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: 20150624 |