CN204945744U - Mining gauge tap - Google Patents
Mining gauge tap Download PDFInfo
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- CN204945744U CN204945744U CN201520485573.8U CN201520485573U CN204945744U CN 204945744 U CN204945744 U CN 204945744U CN 201520485573 U CN201520485573 U CN 201520485573U CN 204945744 U CN204945744 U CN 204945744U
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Abstract
The utility model discloses a kind of mining gauge tap, comprise main circuit and control circuit; Main circuit by isolating reversing switch, contactor main contact forms, and is connected to self-induction type current transformer and resistance-capacitance absorption device composition therebetween; Control circuit take PLC as core, and the external switch amount input signal of PLC control circuit sends into PLC input end through intrinsically safe circuit DLB, and PLC output circuit runs through auxiliary reclay control contactor; Gathered sensor signal by analog input, analog output interface circuit controls external unit and is connected with the switch external world.This mining gauge tap effectively can control the start-stop of underground coal mine electrical equipment, and Reliability of Microprocessor is strong, and accident point is few, can carry out logic control according to external connection point on-off signal and simulating signal; HMI chinese disply can be adopted, by casing outer button, running parameter is set, handled easily and maintenance, and telemonitoring and control can be carried out by network to equipment.
Description
Technical field
The utility model relates to a kind of mining gauge tap, is particularly useful for the equipment of control and protection is carried out in colliery PLC electric controling switch by duplex feeding.
Background technology
At present, known colliery drives the motor of load to carry out the electric controling switch of control and protection, be generally the electromagnetic starter that relay system controls, it can only control the start-stop of single driving arrangement, can not carry out logic control according to external connection point on-off signal and analog signals; When there is overload, short circuit, phase shortage, leak current fault at work, LED light only can be adopted to give malfunction coefficient, cannot running parameter setting be carried out.
Utility model content
For above-mentioned prior art Problems existing, the utility model provides a kind of mining gauge tap, and effectively can control the start-stop of underground coal mine electrical equipment, Reliability of Microprocessor is strong, accident point is few, can carry out logic control according to external connection point on-off signal and simulating signal; When there is overload, short circuit, phase shortage, leak current fault at work, HMI chinese disply can be adopted, can be set running parameter by the outer button of casing, handled easily and maintenance, and telemonitoring and control can be carried out by network to equipment.
To achieve these goals, this mining gauge tap comprises main circuit and control circuit; Described main circuit power inlet wire L1, L2, L3 end is connected with isolation reversing switch GHK and contactor main contact KM1.1, KM2.1, KM3.1 in turn, output switching terminal U1, V1, W1 of described contactor main contact KM1.1 access the input end of load motor, described contactor main contact KM1.1 resistance-capacitance absorption device in parallel with between output terminal U1, V1, W1 ZR-1 and self-induction type current transformer TA1, the output terminal of described self-induction type current transformer TA1 is connected with comprehensive protector of motor ADB-1;
The input end three staggered one of described contactor main contact KM2.1 and KM3.1 is in parallel, output terminal paralleling switch output terminal U2, V2, W2, described contactor main contact KM2.1 and KM3.1 resistance-capacitance absorption device in parallel with between output switching terminal U2, V2, W2 ZR-2 and self-induction type current transformer TA2, the output terminal of described self-induction type current transformer TA2 is connected with comprehensive protector of motor ADB-2;
Described control circuit is PLC control circuit, and the internal switch amount input end of PLC control circuit is connected with button SB1, SB2, SB3, contactor auxiliary contact KM1.2, KM2.2, KM3.2, switch SA1 and comprehensive protector of motor contact;
The external switch amount input signal of described PLC control circuit connects the input end of PLC control circuit by intrinsically safe circuit DLB, switching value output signal connects auxiliary reclay KA1, KA2, KA3, KA4, KA5, the output terminal of described auxiliary reclay KA1, KA2, KA3 connects the coil control circuit of contactor main contact KM1.1, KM2.1, KM3.1, the output terminal connecting valve of described auxiliary reclay KA4, KA5 is to external wiring terminal, and analog input and output signal are respectively by intrinsic safety isolated gate BGS1, BGS2 and Switch Controller external terminal sub-connection.
Further, described PLC control circuit output terminal interface connects HMI man-machine interface interactive module and external communication interface respectively, described PLC control circuit output terminal interface is RS485 serial line interface, RS232 serial line interface, Ethernet RJ45, RJ11, USB, SC optical fiber interface, one or more in AUI, BNC coaxial cable interface and Console Ethernet switch interface.
Further, described intrinsically safe circuit DLB is by two-way Power supply, and intrinsic safety side is powered by intrinsic safety electric source, the output terminal 24VAC power supply of intrinsic safety electric source input end connection control transformer KB, and intrinsic safety electric source output terminal connects the power end of intrinsically safe circuit DLB; Non-intrinsic safety side is powered by PLC power end.
Compared with prior art, this is mining, and gauge tap adopts the control circuit being core with PLC circuit, and effectively can control the start-stop of underground coal mine electrical equipment, Reliability of Microprocessor is strong, accident point is few, can carry out logic control according to external connection point on-off signal and simulating signal; When there is overload, short circuit, phase shortage, leak current fault at work, HMI chinese disply can be adopted, can be set running parameter by the outer button of casing, handled easily and maintenance, and telemonitoring and control can be carried out by network to equipment.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1, this mining gauge tap comprises main circuit and control circuit; Described main circuit power inlet wire L1, L2, L3 end is connected with isolation reversing switch GHK and contactor main contact KM1.1, KM2.1, KM3.1 in turn, output switching terminal U1, V1, W1 of described contactor main contact KM1.1 access the input end of load motor, described contactor main contact KM1.1 resistance-capacitance absorption device in parallel with between output terminal U1, V1, W1 ZR-1 and self-induction type current transformer TA1, the output terminal of described self-induction type current transformer TA1 is connected with comprehensive protector of motor ADB-1;
The input end three staggered one of described contactor main contact KM2.1 and KM3.1 is in parallel, output terminal paralleling switch output terminal U2, V2, W2, described contactor main contact KM2.1 and KM3.1 resistance-capacitance absorption device in parallel with between output switching terminal U2, V2, W2 ZR-2 and self-induction type current transformer TA2, the output terminal of described self-induction type current transformer TA2 is connected with comprehensive protector of motor ADB-2;
Described control circuit is PLC control circuit, and the internal switch amount input end of PLC control circuit is connected with button SB1, SB2, SB3, contactor auxiliary contact KM1.2, KM2.2, KM3.2, switch SA1 and comprehensive protector of motor contact;
The external switch amount input signal of described PLC control circuit connects the input end of PLC control circuit by intrinsically safe circuit DLB, switching value output signal connects auxiliary reclay KA1, KA2, KA3, KA4, KA5, the output terminal of described auxiliary reclay KA1, KA2, KA3 connects the coil control circuit of contactor main contact KM1.1, KM2.1, KM3.1, the output terminal connecting valve of described auxiliary reclay KA4, KA5 is to external wiring terminal, and analog input and output signal are respectively by intrinsic safety isolated gate BGS1, BGS2 and Switch Controller external terminal sub-connection.
Further, described PLC control circuit output terminal interface connects HMI man-machine interface interactive module and external communication interface respectively, described PLC control circuit output terminal interface is RS485 serial line interface, RS232 serial line interface, Ethernet RJ45, RJ11, USB, SC optical fiber interface, one or more in AUI, BNC coaxial cable interface and Console Ethernet switch interface, communications protocol can adopt modbus and other form.
Further, described intrinsically safe circuit DLB is by two-way Power supply, and intrinsic safety side is powered by intrinsic safety electric source, the output terminal 24VAC power supply of intrinsic safety electric source input end connection control transformer KB, and intrinsic safety electric source output terminal connects the power end of intrinsically safe circuit DLB; Non-intrinsic safety side is powered by PLC power end.
The principle of work of this mining gauge tap is:
MPU one-chip computer module and EDA9033 electrical quantity acquisition module is provided with in described PLC control circuit, form testing circuit, by testing circuit, the electric quantity signal of the electric current detected, voltage, power, electricity is delivered in MPU one-chip computer module by serial communication interface, through the process of MPU one-chip computer module, carry out showing or carrying out corresponding actions; Set by contactor auxiliary contact KM1.4, button SB1-SB7 and the duty of switch SA to MPU one-chip computer module, contactor auxiliary contact KM1.4 provides contactor status signal for single-chip microcomputer; Button SB1-SB7 can set running parameter, and can start-stop PLC control circuit; Switch SA can set the working method of PLC control circuit.PLC control circuit is connected with HMI man-machine interface interactive module by MPU one-chip computer module, realizes human-computer interaction function, handled easily and maintenance, and can carry out telemonitoring and control by network to equipment.
In sum, this is mining, and gauge tap adopts the control circuit being core with PLC circuit, effectively can control the start-stop of underground coal mine electrical equipment, and Reliability of Microprocessor is strong, and accident point is few, can carry out logic control according to external connection point on-off signal and simulating signal; When there is overload, short circuit, phase shortage, leak current fault at work, HMI chinese disply can be adopted, can be set running parameter by the outer button of casing, handled easily and maintenance, and telemonitoring and control can be carried out by network to equipment.
Claims (3)
1. a mining gauge tap, comprises main circuit and control circuit; It is characterized in that,
Described main circuit power inlet wire L1, L2, L3 end is connected with isolation reversing switch GHK and contactor main contact KM1.1, KM2.1, KM3.1 in turn, output switching terminal U1, V1, W1 of described contactor main contact KM1.1 access the input end of load motor, described contactor main contact KM1.1 resistance-capacitance absorption device in parallel with between output terminal U1, V1, W1 ZR-1 and self-induction type current transformer TA1, the output terminal of described self-induction type current transformer TA1 is connected with comprehensive protector of motor ADB-1;
The input end three staggered one of described contactor main contact KM2.1 and KM3.1 is in parallel, output terminal paralleling switch output terminal U2, V2, W2, described contactor main contact KM2.1 and KM3.1 resistance-capacitance absorption device in parallel with between output switching terminal U2, V2, W2 ZR-2 and self-induction type current transformer TA2, the output terminal of described self-induction type current transformer TA2 is connected with comprehensive protector of motor ADB-2;
Described control circuit is PLC control circuit, and the internal switch amount input end of PLC control circuit is connected with button SB1, SB2, SB3, contactor auxiliary contact KM1.2, KM2.2, KM3.2, switch SA1 and comprehensive protector of motor contact;
The external switch amount input signal of described PLC control circuit connects the input end of PLC control circuit by intrinsically safe circuit DLB, switching value output signal connects auxiliary reclay KA1, KA2, KA3, KA4, KA5, the output terminal of described auxiliary reclay KA1, KA2, KA3 connects the coil control circuit of contactor main contact KM1.1, KM2.1, KM3.1, the output terminal connecting valve of described auxiliary reclay KA4, KA5 is to external wiring terminal, and analog input and output signal are respectively by intrinsic safety isolated gate BGS1, BGS2 and Switch Controller external terminal sub-connection.
2. the mining gauge tap of one according to claim 1, is characterized in that,
Described PLC control circuit output terminal interface connects HMI man-machine interface interactive module and external communication interface respectively, described PLC control circuit output terminal interface is RS485 serial line interface, RS232 serial line interface, Ethernet RJ45, RJ11, USB, SC optical fiber interface, one or more in AUI, BNC coaxial cable interface and Console Ethernet switch interface.
3. the mining gauge tap of one according to claim 1, is characterized in that,
Described intrinsically safe circuit DLB is by two-way Power supply, and intrinsic safety side is powered by intrinsic safety electric source, the output terminal 24VAC power supply of intrinsic safety electric source input end connection control transformer KB, and intrinsic safety electric source output terminal connects the power end of intrinsically safe circuit DLB; Non-intrinsic safety side is powered by PLC power end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520485573.8U CN204945744U (en) | 2015-07-07 | 2015-07-07 | Mining gauge tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520485573.8U CN204945744U (en) | 2015-07-07 | 2015-07-07 | Mining gauge tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204945744U true CN204945744U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520485573.8U Active CN204945744U (en) | 2015-07-07 | 2015-07-07 | Mining gauge tap |
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| CN (1) | CN204945744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005262A (en) * | 2015-07-07 | 2015-10-28 | 徐州五洋科技股份有限公司 | Mining control switch |
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2015
- 2015-07-07 CN CN201520485573.8U patent/CN204945744U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105005262A (en) * | 2015-07-07 | 2015-10-28 | 徐州五洋科技股份有限公司 | Mining control switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |