CN219392186U - Electrical fault diagnosis and combined control device - Google Patents

Abstract

The utility model provides an electric fault diagnosis and joint control device, which comprises a box body, wherein a box door and a display screen are arranged on the box body, a PLC, a relay unit and a wiring terminal row are arranged in the box body, the relay unit comprises two groups of relays which are respectively an input relay and an output relay, the number of the input relays and the number of the output relays are both n, the number of the input relays is equal to the number of peripheral circuits, and each input relay coil is respectively connected into n peripheral circuits through the wiring terminal row; the normally open contacts of the input relays are respectively connected with n input ends of the PLC; each output relay coil is correspondingly connected with n output ends of the PLC respectively, and normally open contacts of each output relay are connected to safety lines of n mine hoists through connecting terminal blocks respectively; the display screen is connected with the PLC and used for displaying whether each peripheral line has faults or not. The device can quickly diagnose the fault point and control the related safety line based on the fault point.

Description

Electrical fault diagnosis and combined control device

Technical Field

The utility model relates to the technical field of mine electrical equipment, in particular to an electrical fault diagnosis and combined control device.

Background

In the mine industry, the mine hoist itself has a plurality of safety lines (for example, n safety lines) to ensure the safe operation of the mine hoist, in addition, in the mine, a plurality of peripheral safety facilities are also provided to assist the operation of the mine hoist, for example, a safety gate, a cradle, a car stopper and the like, each peripheral safety facility is provided with a peripheral line, each peripheral line corresponds to each safety line of the mine hoist itself one by one, for example, the peripheral safety facility is a safety gate, the corresponding peripheral line is a detection line for whether the safety gate is in place or not, and the peripheral line corresponds to a safety line for whether a driving signal is sent out in the mine hoist or not.

Because of the multiple peripheral circuits of the peripheral safety facility, when a certain circuit fails, the fault point is difficult to check, and the current means generally depend on checking an upper computer program to judge the fault point or depend on experience to judge the fault point, so that the fault removal time can be increased, great inconvenience is brought to maintenance work, and the orderly operation of workshop production is influenced.

Disclosure of Invention

In order to solve the problems in the prior art, the application provides an electric fault diagnosis and combined control device, so that fault points can be diagnosed quickly, and the working efficiency is improved effectively.

In order to achieve the above object, the present application provides an electrical fault diagnosis and joint control device, including a box body, a box door and a display screen are provided on the box body, a PLC, a relay unit and a wiring terminal row are provided inside the box body, the relay unit includes two sets of relays, i.e. an input relay and an output relay, respectively, the number of the input relays and the number of the output relays are n, n is equal to the number of peripheral circuits, two first connection wires are led out from a coil of each input relay through the wiring terminal row, the two first connection wires are recorded as a set of first connection wires, the n sets of first connection wires are led out through wiring holes provided on the box body, the n sets of first connection wires are respectively used for being connected to n peripheral circuits, so that the coil of each input relay is respectively connected to the corresponding peripheral circuit, and when the peripheral circuits fail, the coil of the input relay loses electricity; one ends of the normally open contacts of the n input relays are respectively connected with n input ends of the PLC in a one-to-one correspondence manner, the other ends of the normally open contacts of the n input relays are connected to the positive pole of a first power supply, and the negative pole of the first power supply is connected to the COM end of the PLC; one ends of the coils of the n output relays are respectively connected with n output ends of the PLC in a one-to-one correspondence manner, the other ends of the coils of the n output relays are connected to the positive pole of a second power supply, and the negative pole of the second power supply is connected to the COM end of the PLC; the normally open contact of each output relay is led out of two second connecting wires through the wiring terminal row, the two second connecting wires are recorded as a group of second connecting wires, n groups of second connecting wires are led out through wiring holes arranged on the box body, n groups of second connecting wires are respectively used for being connected to the safety circuits of n mine hoists, the normally open contact of each output relay is respectively connected to the corresponding safety circuit, and when the normally open contact is disconnected, the corresponding safety circuit is disconnected; the display screen is connected with the PLC and used for displaying whether each peripheral line has faults or not.

In some embodiments, the terminal block is a plug-in terminal block.

In some embodiments, a flame retardant dust plug is provided at each trace hole.

In some embodiments, an intelligent dehumidifying device is further disposed in the box body, so that the temperature and the humidity in the box body are within a preset range.

In some embodiments, a mushroom cloud internet of things module is further arranged in the box body, the mushroom cloud internet of things module is connected with the PLC, and fault diagnosis information can be uploaded to the mobile phone terminal through the mushroom cloud internet of things module.

In some embodiments, the PLC is further configured to communicate with a host computer and upload fault diagnosis information to the host computer.

The electric fault diagnosis and combined control device has the advantages that fault points can be rapidly diagnosed, related safety circuits can be controlled based on the fault points, and working efficiency is improved; the electrical fault diagnosis and combined control device can upload diagnosis information to the upper computer and the mobile phone terminal so as to meet the use requirement.

Drawings

Fig. 1 is a schematic view showing an external appearance structure of an electric fault diagnosis and coupling control device in an embodiment.

Fig. 2 is a schematic diagram showing an internal structure of the electrical fault diagnosis and the linkage control device in the embodiment.

Fig. 3 shows a partial electrical schematic diagram of an electrical fault diagnosis and combination control device in an embodiment.

Reference numerals: the intelligent dehumidification device comprises a 1-box body, a 2-box door, a 3-display screen, a 4-PLC, a 5-relay unit, a 6-wiring terminal row, a 7-wiring hole, an 8-flame-retardant dust plug, a 9-mushroom cloud Internet of things module and a 10-intelligent dehumidification device.

Detailed Description

The following describes the embodiments of the present application further with reference to the accompanying drawings.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

As shown in fig. 1 to 3, the electrical fault diagnosis and connection control device according to the present application includes a box 1, a box door 2 and a display screen 2 are provided on the box 1, a PLC4 (for example, a PLC adopting SIEMENS 1200 series), a relay unit 5 and a wire connection terminal row 6 are provided inside the box 1, the relay unit 5 includes two sets of relays, namely, input relays (KA 1 to KAn) and output relays (KB 1 to KBn), the number of the input relays and the number of the output relays are n, the number of the input relays is equal to the number of the peripheral circuits, two first connection wires are led out from the coils of each input relay through the wire connection terminal row 6, the two first connection wires are recorded as a set of first connection wires, the n sets of first connection wires are respectively used for being connected to the n peripheral circuits, so that the coils of each input relay are respectively connected to the corresponding peripheral circuits, and when the peripheral circuits fail, the coils of the input relay are electrically lost; one ends of the normally open contacts of the n input relays are respectively connected with n input ends of the PLC4 in one-to-one correspondence, the other ends of the normally open contacts of the n input relays are connected to the positive electrode of the first power supply V1, and the negative electrode of the first power supply V1 is connected to the COM end of the PLC 4.

One ends of the coils of the n output relays are respectively connected with n output ends of the PLC4 in a one-to-one correspondence manner, the other ends of the coils of the n output relays are connected to the positive electrode of a second power supply V2, and the negative electrode of the second power supply V2 is connected to the COM end of the PLC 4; the normally open contact of each output relay is led out through the wiring terminal strip 6, the two second connecting wires are recorded as a group of second connecting wires, n groups of second connecting wires are led out through the wiring holes 7 formed in the box body 1, n groups of second connecting wires are respectively used for being connected to the safety circuits of the n mine hoists, the normally open contact of each output relay is respectively connected to the corresponding safety circuits, and when the normally open contact is disconnected, the corresponding safety circuits are disconnected.

The display screen 2 is connected with the PLC4, the display screen 2 is used for displaying whether each peripheral circuit has faults, when a certain peripheral circuit has faults, the indicator lamp corresponding to the peripheral circuit is red, and if the peripheral circuit has no faults, the indicator lamp corresponding to the peripheral circuit is green.

In this embodiment, in order to improve the connection efficiency, the connection terminal block 6 is a plug-in connection terminal block. Each wiring hole 7 is provided with a flame-retardant dust plug 8 to reduce the possibility of dust entering the box body 1 and prevent the influence of dust on the wiring. In order to further reduce the influence of the environment on the device according to the present application, the box 1 may further be provided therein with an intelligent dehumidifying device 10, for enabling the temperature and humidity in the box 1 to be within a preset range, so as to prevent the influence on the circuit, for example, an intelligent dehumidifying device with the model BH-CS810 may be used. In addition, mushroom cloud thing networking module 9 can also be equipped with in the box 1, for example adopt the mushroom cloud thing networking module that the model is MAXW4-C1, mushroom cloud thing networking module 9 with PLC4 is connected, through mushroom cloud thing networking module 9 can be with fault diagnosis information uploading to mobile phone terminal, convenience of customers looks over in real time. The PLC4 is also used for communicating with an upper computer so as to upload fault diagnosis information to the upper computer.

In a specific use process, as shown in fig. 3, SQ1 to SQn are detection switches in each peripheral line, and when a certain peripheral line fails, the corresponding detection switch is turned off. For example, when the peripheral line is a detection line for whether the safety door is closed or not, if the safety door is closed, the detection switch SQ1 of the peripheral line is closed, at this time, the coil KA1-1 of the corresponding input relay is electrified, so that the normally open contact KA1-2 of the input relay is closed, the corresponding input end of the PLC4 is displayed as a high level, which indicates that the peripheral line has no fault, at this time, the indicator lamp corresponding to the peripheral line in the display screen 3 is green, and the relevant output end of the PLC4 outputs a signal, so that the coil KB1-1 of the corresponding output relay is electrified, further, the normally open contact in the safety line connected to whether the driving signal is sent out in the mine hoist is in a closed state, at this time, the hoist signal system detects normal, and normally sends out the driving signal.

If the safety door is not in place, the fault is represented, at this time, the detection switch SQ1 of the peripheral circuit is turned off, the coil KA1-1 of the corresponding input relay is powered off, so that the normally open contact KA1-2 of the input relay is turned off, the corresponding input end of the PLC4 is displayed as a low level, which indicates that the peripheral circuit is faulty, at this time, the indication lamp corresponding to the peripheral circuit in the display screen 3 is red, and the coil KB1-1 of the output relay at the relevant output end of the PLC4 is powered off, so that the normally open contact connected to the corresponding safety circuit is in an off state, and the safety circuit is turned off, at this time, a start signal cannot be sent out, which realizes the control of the relevant safety circuit based on the fault point, that is, the joint control function.

The electrical fault diagnosis and combined control device can quickly diagnose the fault point, control the related safety circuit based on the fault point, and improve the working efficiency; the electrical fault diagnosis and combined control device can upload diagnosis information to the upper computer and the mobile phone terminal so as to meet the use requirement.

The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should make equivalent substitutions or modifications according to the technical solution and the concept of the present application, and should be covered by the scope of the present application.

Claims (6)

1. An electrical fault diagnosis and combined control device is characterized in that: the intelligent power supply box comprises a box body, wherein a box door and a display screen are arranged on the box body, a PLC, a relay unit and a wiring terminal row are arranged in the box body, the relay unit comprises two groups of relays which are an input relay and an output relay respectively, the number of the input relays and the number of the output relays are n, the number of the input relays is equal to that of the peripheral circuits, the coils of each input relay are led out of two first connecting wires through the wiring terminal row, the two first connecting wires are recorded as one group of first connecting wires, the n groups of first connecting wires are led out through wiring holes arranged on the box body, the n groups of first connecting wires are respectively used for being connected to the n peripheral circuits, the coils of each input relay are respectively connected to the corresponding peripheral circuits, and when the peripheral circuits fail, the coils of the input relays lose electricity; one ends of the normally open contacts of the n input relays are respectively connected with n input ends of the PLC in a one-to-one correspondence manner, the other ends of the normally open contacts of the n input relays are connected to the positive pole of a first power supply, and the negative pole of the first power supply is connected to the COM end of the PLC; one ends of the coils of the n output relays are respectively connected with n output ends of the PLC in a one-to-one correspondence manner, the other ends of the coils of the n output relays are connected to the positive pole of a second power supply, and the negative pole of the second power supply is connected to the COM end of the PLC; the normally open contact of each output relay is led out of two second connecting wires through the wiring terminal row, the two second connecting wires are recorded as a group of second connecting wires, n groups of second connecting wires are led out through wiring holes arranged on the box body, n groups of second connecting wires are respectively used for being connected to the safety circuits of n mine hoists, the normally open contact of each output relay is respectively connected to the corresponding safety circuit, and when the normally open contact is disconnected, the corresponding safety circuit is disconnected; the display screen is connected with the PLC and used for displaying whether each peripheral line has faults or not.

2. The electrical fault diagnosis and combination control apparatus according to claim 1, wherein: the wiring terminal strip adopts a plug-in wiring terminal strip.

3. The electrical fault diagnosis and combination control apparatus according to claim 1, wherein: each wiring hole is provided with a flame-retardant dust-proof plug.

4. The electrical fault diagnosis and combination control apparatus according to claim 1, wherein: an intelligent dehumidifying device is further arranged in the box body and used for enabling the temperature and the humidity in the box body to be in a preset range.

5. The electrical fault diagnosis and combination control apparatus according to claim 1, wherein: still be equipped with mushroom cloud thing networking module in the box, mushroom cloud thing networking module with PLC is connected, through mushroom cloud thing networking module can be with fault diagnosis information upload to the cell-phone terminal.

6. The electrical fault diagnosis and combination control apparatus according to claim 1, wherein: the PLC is also used for communicating with the upper computer and uploading fault diagnosis information to the upper computer.