CN102722172A - Belt centralized control system ground detector - Google Patents
Belt centralized control system ground detector Download PDFInfo
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- CN102722172A CN102722172A CN2012102004864A CN201210200486A CN102722172A CN 102722172 A CN102722172 A CN 102722172A CN 2012102004864 A CN2012102004864 A CN 2012102004864A CN 201210200486 A CN201210200486 A CN 201210200486A CN 102722172 A CN102722172 A CN 102722172A
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Abstract
The invention discloses a belt centralized control system ground detector and relates to the technical field of belt centralized control system detection. The detector is formed by connecting a detection circuit on a smart part of a belt centralized control system, and the detection circuit consists of a 4069 hex inverter and a peripheral circuit composed of resistors R1-R10, diodes D1-D2, capacitors C1-C3 and a triode T1. The belt centralized control system ground detector has the advantages that operation efficiency of a belt conveyor is improved, and when ground insulation of the control system is decreased, a ground monitoring system is capable of warning in advance to inform a repairman of maintenance, so that frequency for processing emergency faults is reduced, labor intensity of workers is lowered, service life of the control system is prolonged, and operation safety of the control system is guaranteed.
Description
Technical field
The present invention relates to belt control system detection technique field, specifically is a kind of belt centralized control system pick-up unit over the ground, is fit to the ground protection of the control system of all employings " floating ground " direct current power source supplying power.
Background technology
Along with the continuous development of social productive forces, the colliery is developed towards the direction of high-yield and high-efficiencyization day by day, and belt conveyor has been born very important role in the transportation of mine raw coal.And the centralized control system of belt feeder is as the important component part of belt conveyor, undertaking the whole piece belt feeder startup, stop, and monitor the operation conditions of whole piece belt feeder and the action situation of each sensor in real time, play an important role.But for itself ruuning situation, especially control system insulation situation over the ground not one improve reliable parts and do this work.
The control system of belt feeder is being carried operation, the monitoring work of whole piece belt feeder and even whole coal streaming system.Because the down-hole is more abominable in the on-the-spot running environment of the belt feeder of operation at present; Air humidity is big, temperature Change is big, adds that the flowing velocity of air is less, the as easy as rolling off a log control system that causes; Especially various sensors make moist and cause that insulation against ground descends; Sensor makes moist and can cause the sensor misoperation, can send wrong signal, influences the operation of belt feeder.The centralized control system of belt feeder is owing to lack the function of insulation against ground monitoring, and insulation against ground decline can make the The whole control system generation systems disorderly, the damage that this can cause control system rub-out signal to occur and might cause system.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art; The present invention provides a kind of belt centralized control system pick-up unit over the ground; Effectively improve the safe operation coefficient of belt feeder centralized control system; Reduce the failure rate of centralized control system, reduce Master Cost, reduce worker's labor operation difficulty and labour intensity.
The present invention realizes with following technical scheme: a kind of belt centralized control system is pick-up unit over the ground, is connected with testing circuit on the intelligent parts of belt centralized control system, and described testing circuit comprises 4069 hex inverters, resistance R 1～R10; Diode D1～D2, capacitor C 1～C3 and triode T1,1 pin of 4069 hex inverters is through resistance R 4 ground connection, 2 pin and 3 pin short circuits; Be connected with 1 pin through resistance R 7 behind 4 pin and the 5 pin short circuits, parallel resistance R3 between 1 pin and 14 pin, 8 pin connect an end of capacitor C 2; The other end of capacitor C 2 connects the positive pole of diode D2; The negative pole of diode D1, the negative pole of diode D2 connects 7 pin, and the positive pole of diode D1 connects an end of capacitor C 3, resistance R 2 respectively; The other end of capacitor C 3 connects 14 pin; The other end ground connection of resistance R 2,6 pin connect the base stage of triode through resistance R 8, and the emitter of triode T1 connects an end of 7 pin, resistance resistance R 9; Draw with intelligent parts through resistance R 10 behind the collector short circuit of the other end of resistance R 9 and triode T1 and be connected, 7 pin are drawn respectively with intelligent parts with 8 pin and are connected.
The invention has the beneficial effects as follows: improve the belt feeder operational efficiency; When the insulation against ground of control system descends; Monitoring system can be sent early warning in advance over the ground, notifies the check man to safeguard, has reduced the number of processes of emergency; The worker's who alleviates labour intensity has prolonged the serviceable life of control system; Ensure the safety of control system operation, effectively having solved does not have the insulation against ground problems of monitoring in the original control system.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the present invention and circuit diagram.
Embodiment
As shown in Figure 1, belt centralized control system pick-up unit over the ground is on the intelligent parts of belt centralized control system, to be connected with testing circuit, and described testing circuit comprises 4069 hex inverters, resistance R 1～R10; Diode D1～D2, capacitor C 1～C3 and triode T1,1 pin of 4069 hex inverters is through resistance R 4 ground connection, 2 pin and 3 pin short circuits; Be connected with 1 pin through resistance R 7 behind 4 pin and the 5 pin short circuits, parallel resistance R3 between 1 pin and 14 pin, 8 pin connect an end of capacitor C 2; The other end of capacitor C 2 connects the positive pole of diode D2; The negative pole of diode D1, the negative pole of diode D2 connects 7 pin, and the positive pole of diode D1 connects an end of capacitor C 3, resistance R 2 respectively; The other end of capacitor C 3 connects 14 pin; The other end ground connection of resistance R 2,6 pin connect the base stage of triode through resistance R 8, and the emitter of triode T1 connects an end of 7 pin, resistance resistance R 9; Draw with intelligent parts through resistance R 10 behind the collector short circuit of the other end of resistance R 9 and triode T1 and be connected, 7 pin are drawn respectively with intelligent parts with 8 pin and are connected.
Principle of work: main control box extends out through testing circuit and is used to connect all intelligent parts; Intelligent parts leans on the 12VDC power supply on the testing circuit simultaneously, and intelligent parts receives the signal of each sensor, reports to master controller; Accept the instruction of master controller, the equipment that control is on-the-spot.With the coal piling sensor is example.Intelligent parts does not have the function that insulation against ground detects under the normal condition.When being connected to the coal piling sensor on the intelligent parts, the coal piling sensor internal has a boostrap circuit, and the power cathode of 12VDC produces the voltage about 8V over the ground.The coal piling sensor leans on bootstrap voltage mode to detect coal piling line current potential over the ground.Because the down-hole is moist, a lot of situation possibly cause testing circuit 12V power ground.Will make boostrap circuit ineffective like this, cause the coal piling sensor failure.And the coal piling protection is the most important protection of belt feeder.When the insulation against ground of control system descended, voltage over the ground also can descend thereupon.The pick-up unit over the ground of our invention is through detecting the 12V power supply voltage over the ground and then the device of indirect detection insulation against ground, receives monitoring device over the ground on the intelligent parts.When AST line power voltage-to-ground reduced, monitoring device monitored signal over the ground, after calculating through internal circuit, sent signal from the 4th mouthful of intelligent parts to control system.Intelligent parts sends early warning signal after receiving signal.Notifying operation personnel safeguard.This device does not need independently-powered in addition, be linked into control system after, power supply that can using system carries out work, and can not cause burden to control system, does not also influence the operate as normal of control system.
This over the ground pick-up unit utilize the input interface of the control system of belt conveyor own.Can be installed in the input interface that is associated according to the conveyor on-site actual situations.This device is common to the belt centralized control system of using present down-hole.In a single day the insulation against ground that detects system through real-time monitoring is reduced to setting value, will send early warning in advance, and the prompting maintainer in time checks the reason that insulation reduces, and in time investigates the trouble spot.Can avoid taking place fault like this because of the belt control system.And the operation of belt feeder is impacted.This device makes full use of the existing control device of belt feeder, need not to increase in addition power-equipment, need not to increase power supply, does not take separate space, as long as be installed in the existing control box just passable.
Claims (1)
1. belt centralized control system pick-up unit over the ground, it is characterized in that: be connected with testing circuit on the intelligent parts of belt centralized control system, described testing circuit comprises 4069 hex inverters, resistance R 1～R10; Diode D1～D2, capacitor C 1～C3 and triode T1,1 pin of 4069 hex inverters is through resistance R 4 ground connection, 2 pin and 3 pin short circuits; Be connected with 1 pin through resistance R 7 behind 4 pin and the 5 pin short circuits, parallel resistance R3 between 1 pin and 14 pin, 8 pin connect an end of capacitor C 2; The other end of capacitor C 2 connects the positive pole of diode D2; The negative pole of diode D1, the negative pole of diode D2 connects 7 pin, and the positive pole of diode D1 connects an end of capacitor C 3, resistance R 2 respectively; The other end of capacitor C 3 connects 14 pin; The other end ground connection of resistance R 2,6 pin connect the base stage of triode through resistance R 8, and the collector of triode T1 connects an end of 7 pin, resistance resistance R 9; Draw with intelligent parts through resistance R 10 behind the emitter short circuit of the other end of resistance R 9 and triode T1 and be connected, 7 pin are drawn respectively with intelligent parts with 8 pin and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200486.4A CN102722172B (en) | 2012-06-18 | 2012-06-18 | Belt centralized control system ground detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210200486.4A CN102722172B (en) | 2012-06-18 | 2012-06-18 | Belt centralized control system ground detector |
Publications (2)
| Publication Number | Publication Date |
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| CN102722172A true CN102722172A (en) | 2012-10-10 |
| CN102722172B CN102722172B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210200486.4A Active CN102722172B (en) | 2012-06-18 | 2012-06-18 | Belt centralized control system ground detector |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012075250A (en) * | 2010-09-29 | 2012-04-12 | Life Technos:Kk | Insulation ground fault monitoring device with adoption lock |
| CN202632101U (en) * | 2012-06-18 | 2012-12-26 | 上海大屯能源股份有限公司 | Belt centralized control system ground detection equipment |
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2012
- 2012-06-18 CN CN201210200486.4A patent/CN102722172B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012075250A (en) * | 2010-09-29 | 2012-04-12 | Life Technos:Kk | Insulation ground fault monitoring device with adoption lock |
| CN202632101U (en) * | 2012-06-18 | 2012-12-26 | 上海大屯能源股份有限公司 | Belt centralized control system ground detection equipment |
Non-Patent Citations (2)
| Title |
|---|
| 李岗: "6非门集成电路4069应用――特性及电路实验", 《电子制作》, no. 05, 1 May 2009 (2009-05-01) * |
| 谢少伟: "由4069反相器构成的出租车计价器开关稳压源", 《计量技术》, no. 05, 28 May 2002 (2002-05-28) * |
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| CN102722172B (en) | 2015-04-22 |
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