CN204660728U - A kind of condenser travelling apron longitudinal tear checking system - Google Patents
A kind of condenser travelling apron longitudinal tear checking system Download PDFInfo
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- CN204660728U CN204660728U CN201520359804.0U CN201520359804U CN204660728U CN 204660728 U CN204660728 U CN 204660728U CN 201520359804 U CN201520359804 U CN 201520359804U CN 204660728 U CN204660728 U CN 204660728U
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Abstract
The utility model discloses a kind of condenser travelling apron longitudinal tear checking system, the adhesive tape being included in travelling apron arrange below several take adhesive tape as the multiplanar conductive pole plate that medium forms some groups of planar capacitance sensors, two parts planar capacitance sensor group being divided into quantity equal some groups of planar capacitance sensors, planar capacitance sensor group is connected respectively to capacitive detection circuit, capacitive detection circuit comprises two path analoging switch gating circuits, two path analoging switch gating circuits and micro controller system are connected respectively, also comprise the capacitance-voltage conversion circuit that two-way is connected with analog switch gating circuit respectively, two-way capacitance-voltage conversion circuit is connected respectively to instrument amplifier circuit, instrument amplifier circuit is connected to micro controller system by A/D change-over circuit, and micro controller system is connected with display alarm output circuit.Compared with prior art, the utility model structure is simple, and cost is low, and to longitudinal rupture of adhesive tape energy detection alarm in time, Accident prevention expands.
Description
Technical field
The utility model relates to travelling apron Automatic Measurement Technique field, particularly a kind of condenser travelling apron longitudinal tear checking system, to 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.
Summary of the invention
The purpose of this utility model to overcome current travelling apron longitudinal tear method of inspection and the defect existing for warning device and deficiency, provides a kind of condenser travelling apron longitudinal tear checking system.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of condenser travelling apron longitudinal tear checking system, the adhesive tape being included in travelling apron arrange below several take adhesive tape as the multiplanar conductive pole plate that medium forms some groups of planar capacitance sensors, from two parts planar capacitance sensor group that some groups of planar capacitance sensors are divided into quantity equal by the longitudinal centerline of adhesive tape, the often group planar capacitance sensor in described two parts planar capacitance sensor group is connected respectively capacitive detection circuit; Described capacitive detection circuit comprises: the analog switch gating circuit that two-way respectively with two groups of planar capacitance sensor groups are connected, two path analoging switch gating circuits and micro controller system are connected respectively, for carrying out successively corresponding gating one by one to two groups of planar capacitance sensor group midplane capacitive transducers respectively according to the instruction of micro controller system simultaneously; Described capacitive detection circuit also comprises: the capacitance-voltage conversion circuit that two-way is connected with analog switch gating circuit respectively, and the capacitance for the pair of planar capacitive transducer to institute's gating detects respectively and changes into voltage signal; Described two-way capacitance-voltage conversion circuit is connected respectively to the instrument amplifier circuit simultaneously for curbing common mode interference signal will being punctured or to tear caused accident difference mode signal because of adhesive tape by foreign matter and amplify; Described instrument amplifier circuit is connected to micro controller system by the A/D change-over circuit for analog signal being converted to digital signal, micro controller system is connected with display alarm output circuit, described micro controller system is for controlling simultaneously corresponding in the gating two groups of planar capacitance sensor groups one by one pair of planar capacitive transducer of two path analoging switch gating circuits, by to measuring, and carry out data compare process by measuring the digital signal that obtains, being reported to the police by display alarm output circuit when difference mode signal exceeds set threshold range is exported.
As further preferred version of the present utility model, described several multiplanar conductive pole plates arranged below the adhesive tape of travelling apron are two-plate or multi-electrode and are many groups planar capacitance sensor that medium is formed with adhesive tape.
As further preferred version of the present utility model, described several multiplanar conductive pole plates arranged below the adhesive tape of travelling apron are two misarrangement positions layouts and quantity is even number.
Compared with prior art, the utility model 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, do not affect by installation environment, the damaged and timely detection alarm of tearing energy to tape surface, Accident prevention expands.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
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 in the illustrative examples of this utility model and explanation, but not as to restriction of the present utility model.
Condenser travelling apron longitudinal tear checking system as shown in Figure 1, the adhesive tape 1 being included in travelling apron arrange below several take adhesive tape as the multiplanar conductive pole plate 2 that medium forms some groups of planar capacitance sensors, multiplanar conductive pole plate 2 is two-plate or multi-electrode and is many groups planar capacitance sensor that medium is formed with adhesive tape 1, multiplanar conductive pole plate 2 is two misarrangement positions layouts and quantity is even number, several multiplanar conductive pole plates 2 are split up into the equal planar capacitance sensor group 21 of quantity and planar capacitance sensor group 22 two parts from the longitudinal centerline of adhesive tape 1, described planar capacitance sensor group 21 and planar capacitance sensor group 22 are connected respectively to capacitive detection circuit 3, capacitive detection circuit 3 comprises: the analog switch gating circuit 31 be connected with planar capacitance sensor group 21 and the analog switch gating circuit 33 be connected with planar capacitance sensor group 22, analog switch gating circuit 31 and analog switch gating circuit 33 are corresponding with micro controller system 6 to be respectively connected, for carrying out successively corresponding gating one by one to planar capacitance sensor group 21 and planar capacitance sensor group 22 respectively according to the instruction of micro controller system 6 simultaneously, capacitive detection circuit 3 also comprises the capacitance-voltage conversion circuit 32 be connected with analog switch gating circuit 31, the capacitance-voltage conversion circuit 34 be connected with analog switch gating circuit 33, the capacitance for the pair of planar capacitive transducer to institute's gating detects respectively and changes into voltage signal, described capacitance-voltage conversion circuit 32 and capacitance-voltage conversion circuit 34 are connected respectively to instrument amplifier circuit 4, amplify for curbing common mode interference signal by because adhesive tape is punctured by foreign matter or tears caused accident difference mode signal simultaneously, described instrument amplifier circuit 4 connects A/D change-over circuit 5, for analog signal is converted to digital signal, described A/D change-over circuit 5 is connected to micro controller system 6, micro controller system 6 is connected to display alarm output circuit 7, described micro controller system 6 is for control simulation switching gate circuit 31 and analog switch gating circuit 33, simultaneously corresponding in gating planar capacitance sensor group 21 and planar capacitance sensor group 22 one by one pair of planar capacitive transducer, by to measuring, and carry out data compare process by measuring the digital signal that obtains, being reported to the police by display alarm output circuit 7 when the difference mode signal belonging to accident exceeds set threshold range is exported.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a condenser travelling apron longitudinal tear checking system, it is characterized in that: the adhesive tape (1) being included in travelling apron arrange below several take adhesive tape as the multiplanar conductive pole plate (2) that medium forms some groups of planar capacitance sensors, from two parts planar capacitance sensor group (21 that some groups of planar capacitance sensors are divided into quantity equal by the longitudinal centerline of adhesive tape (1), 22), described two parts planar capacitance sensor group (21, 22) the often group planar capacitance sensor in is connected respectively capacitive detection circuit (3), described capacitive detection circuit (3) comprising: two-way respectively with two parts planar capacitance sensor group (21, 22) the analog switch gating circuit (31 connected, 33), two path analoging switch gating circuits (31, 33) and micro controller system (6) be connected respectively, distinguish simultaneously to two groups of planar capacitance sensor groups (21 for the instruction according to micro controller system (6), 22) the often group planar capacitance sensor in carries out successively corresponding gating one by one simultaneously respectively, described capacitive detection circuit (3) also comprises: two-way respectively with analog switch gating circuit (31,33) capacitance-voltage conversion circuit (32 connected, 34) capacitance, for the pair of planar capacitive transducer to institute's gating detects respectively and changes into voltage signal, described two-way capacitance-voltage conversion circuit (32,34) is connected to instrument amplifier circuit (4), amplifies differential mode accident signal for curbing common mode interference signal simultaneously, described instrument amplifier circuit (4) connects A/D change-over circuit (5), for analog signal is converted to digital signal, described A/D change-over circuit (5) is connected to micro controller system (6), micro controller system (6) is connected to display alarm output circuit (7), described micro controller system (6) is for controlling two path analoging switch gating circuits (31,33) simultaneously gating two parts planar capacitance sensor group (21 one by one, 22) pair of planar capacitive transducer corresponding in, by to measuring, and carry out data compare process by measuring the digital signal that obtains, being reported to the police by display alarm output circuit (7) when the difference mode signal belonging to accident exceeds set threshold range is exported.
2. condenser travelling apron longitudinal tear checking system according to claim 1, is characterized in that: several multiplanar conductive pole plates (2) arranged below the described adhesive tape at travelling apron (1) are two-plate or multi-electrode and are many groups planar capacitance sensor that medium is formed with adhesive tape.
3. condenser travelling apron longitudinal tear checking system according to claim 1, is characterized in that: several multiplanar conductive pole plates (2) arranged below the described adhesive tape at travelling apron (1) are two misarrangement positions layouts and quantity is even number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359804.0U CN204660728U (en) | 2015-05-29 | 2015-05-29 | A kind of condenser travelling apron longitudinal tear checking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359804.0U CN204660728U (en) | 2015-05-29 | 2015-05-29 | A kind of condenser travelling apron longitudinal tear checking system |
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| CN204660728U true CN204660728U (en) | 2015-09-23 |
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| CN201520359804.0U Active CN204660728U (en) | 2015-05-29 | 2015-05-29 | A kind of condenser travelling apron longitudinal tear checking system |
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| CN (1) | CN204660728U (en) |
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2015
- 2015-05-29 CN CN201520359804.0U patent/CN204660728U/en active Active
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