Power supply control circuit of ore transporting electric locomotive and ore transporting electric locomotive

Abstract

The utility model discloses a mine transporting electric locomotive power supply control circuit and a mine transporting electric locomotive. The mine transporting electric locomotive power supply control circuit comprises a signal receiving unit, a control unit and a switch unit. The signal receiving unit is used for receiving a power control signal. And the control unit is connected with the signal receiving unit and is used for outputting a power switch signal under the condition that the power control signal is received. The switch unit is connected with a stringing power supply of the ore transporting electric locomotive, the control unit is connected with a control end of the switch unit, and the switch unit is used for being switched on or switched off under the condition of receiving a power switch signal.

Description

Technical Field

[0001] This application relates to the field of mining locomotive technology, and in particular to a power control circuit for a mining locomotive and the mining locomotive itself. Background Technology

[0002] After the ore-carrying electric locomotive arrives at the unloading area loaded with ore, on-site workers need to manually operate the handle at the locomotive's overhead power control box to disconnect the power supply. After unloading the ore and manually clearing any accumulated ore from the bottom of the locomotive, the workers then manually reconnect the power supply, allowing the locomotive to drive away. However, manually controlling the power supply to the ore-carrying electric locomotive results in high labor costs. Utility Model Content

[0003] This application aims to provide a power control circuit for a mining locomotive and a mining locomotive, which can solve the problem of high labor costs.

[0004] In a first aspect, embodiments of this application provide a power control circuit for a mining locomotive, including:

[0005] A signal receiving unit, wherein the signal receiving unit is used to receive power control signals;

[0006] A control unit, connected to the signal receiving unit, is configured to output a power switch signal upon receiving the power control signal.

[0007] A switching unit is provided, which is connected to the overhead power supply of the mining locomotive. The control unit is connected to the control terminal of the switching unit. The switching unit is used to close or open upon receiving a power switch signal.

[0008] According to some embodiments of this application, the signal receiving unit includes:

[0009] A remote control receiver, which is connected to the control unit.

[0010] According to some embodiments of this application, the remote control receiver is connected to the control unit via a CAN bus.

[0011] According to some embodiments of this application, the signal receiving unit includes:

[0012] A local industrial control computer, which is connected to the control unit.

[0013] According to some embodiments of this application, the local industrial control computer is connected to the control unit via Ethernet.

[0014] According to some embodiments of this application, the signal receiving unit includes:

[0015] A remote control receiver, which is connected to the control unit;

[0016] A local industrial control computer, which is connected to the control unit.

[0017] According to some embodiments of this application, the switching unit includes:

[0018] The contactor has its main contacts connected to the overhead power supply of the mining locomotive, and its coil is connected to the neutral wire and the live wire, respectively.

[0019] A power relay, wherein the coil of the power relay is connected to the control unit and the neutral wire respectively, and the contacts of the power relay are connected to the neutral wire and the live wire respectively;

[0020] An intermediate relay, wherein the coil of the intermediate relay is disposed between the contact of the power relay and the live wire, and / or, the coil of the intermediate relay is disposed between the contact of the power relay and the neutral wire; the contact of the intermediate relay is disposed between the coil of the contactor and the live wire, and / or, the contact of the intermediate relay is disposed between the coil of the contactor and the neutral wire.

[0021] Secondly, embodiments of this application provide a mining locomotive, including the mining locomotive power control circuit as described above.

[0022] In this embodiment, a power control signal is received by a signal receiving unit and transmitted to a control unit. Upon receiving the power control signal, the control unit outputs a power switch signal to a switching unit. Upon receiving the power switch signal, the switching unit closes or opens, thereby realizing the on / off control of the power supply of the mining locomotive overhead line. No manual on-site operation is required, reducing labor costs.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 A circuit diagram of the control unit in an embodiment of the power control circuit for a mining locomotive provided in this application;

[0026] Figure 2 The circuit diagram of the local industrial control computer and the remote control receiver in the embodiment of the power control circuit for the mining locomotive provided in this application;

[0027] Figure 3 A circuit diagram of the switching unit in an embodiment of the power control circuit for a mining locomotive provided in this application. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] In the description of this application, "multiple" refers to two or more. The use of "first" and "second" is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or the order in which the technical features are indicated.

[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0032] The following reference Figures 1 to 3 This application describes a power control circuit for a mining locomotive and a mining locomotive according to embodiments of the present application.

[0033] This application provides a power control circuit for a mining locomotive, including:

[0034] The signal receiving unit is used to receive power control signals.

[0035] Control unit A1 is connected to signal receiving unit. Control unit A1 is used to output power switch signal when power control signal is received.

[0036] The switching unit is connected to the overhead power supply of the ore transport locomotive. The control unit A1 is connected to the control terminal of the switching unit. The switching unit is used to close or open when it receives a power switch signal.

[0037] In this embodiment, a power control signal is received by a signal receiving unit and transmitted to a control unit A1. Upon receiving the power control signal, the control unit A1 outputs a power switch signal to a switching unit. Upon receiving the power switch signal, the switching unit closes or opens, thereby realizing the on / off control of the power supply of the mining locomotive overhead line. No manual on-site operation is required, reducing labor costs.

[0038] In some embodiments of this application, the control unit A1 is a controller, such as... Figure 1 As shown, Figure 1 This is the circuit diagram for control unit A1.

[0039] In some embodiments of this application, such as Figure 2 As shown, the signal receiving unit includes:

[0040] Remote control receiver A3 is connected to control unit A1.

[0041] In this embodiment, the operator sends a power control signal by operating the remote control. After receiving the power control signal sent by the remote control, the remote control receiver A3 transmits the power control signal to the control unit A1.

[0042] In some embodiments of this application, the remote control receiver A3 is connected to the control unit A1 via a CAN bus.

[0043] In this embodiment, the remote control receiver A3 communicates with the control unit A1 via a CAN bus, and the remote control receiver A3 transmits power control signals to the control unit A1 via the CAN bus. The remote control receiver A3 can also be connected to the control unit A1 using other communication buses, such as an RS485 bus.

[0044] In some embodiments of this application, such as Figure 2 As shown, the signal receiving unit also includes:

[0045] Local industrial computer A4 is connected to control unit A1.

[0046] In this embodiment, the control room of the ore transport locomotive can be operated using a remote control console or a human-machine interface to send power control signals to the local industrial control computer A4, which then transmits the power control signals to the control unit A1.

[0047] In some embodiments of this application, the local industrial computer A4 is connected to the control unit A1 via Ethernet.

[0048] In this embodiment, the local industrial computer A4 communicates with the control unit A1 via Ethernet, and the local industrial computer A4 transmits power control signals to the control unit A1 via Ethernet. The local industrial computer A4 can also use other communication methods to communicate with the control unit A1, such as CAN bus or RS485 bus.

[0049] In some embodiments of this application, such as Figure 3 As shown, the switching unit includes:

[0050] Contactor KA11, the main contacts of contactor KA11 are connected to the overhead power supply of the mining locomotive, and the coil of contactor KA11 is connected to the neutral wire and the live wire respectively.

[0051] Power relay KA9, the coil of power relay KA9 is connected to control unit A1 and neutral wire respectively, and the contacts of power relay KA9 are connected to neutral wire and live wire respectively.

[0052] Intermediate relay KA10, the coil of intermediate relay KA10 is located between the contact of power relay KA9 and the live wire, and / or, the coil of intermediate relay KA10 is located between the contact of power relay KA9 and the neutral wire; the contact of intermediate relay KA10 is located between the coil of contactor KA11 and the live wire, and / or, the contact of intermediate relay KA10 is located between the coil of contactor KA11 and the neutral wire.

[0053] In this embodiment, upon receiving a power control signal, control unit A1 outputs a power switch signal to the coil of power relay KA9, energizing or de-energizing the coil of power relay KA9. When the coil of power relay KA9 is energized, the contacts of power relay KA9 close, thereby energizing the coil of intermediate relay KA10. The contacts of intermediate relay KA10 close, energizing the coil of contactor KA11, which in turn closes the main contacts of contactor KA11. Since the main contacts of contactor KA11 are connected in series with the overhead power supply of the ore transport locomotive, when the main contacts of contactor KA11 close, the overhead power supply of the ore transport locomotive is connected. When the coil of power relay KA9 is de-energized, the contacts of power relay KA9 open, thereby de-energizing the coil of intermediate relay KA10. The contacts of intermediate relay KA10 open, de-energizing the coil of contactor KA11, which in turn opens the main contacts of contactor KA11. Since the main contacts of contactor KA11 are connected in series with the overhead power supply of the ore transport locomotive, when the main contacts of contactor KA11 are open, the overhead power supply of the ore transport locomotive can be disconnected.

[0054] In addition, this application provides a mining locomotive, including the mining locomotive power control circuit as described above.

[0055] The mining locomotive provided in this application embodiment can realize all the processes implemented in the above circuit embodiment and achieve the same beneficial effects. To avoid repetition, it will not be described again here.

[0056] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A power control circuit for a mine haulage electric locomotive, characterised in that, The power supply control circuit comprises: a signal receiving unit for receiving a power supply control signal; a control unit connected to the signal receiving unit, the control unit being configured to output a power switch signal when the power supply control signal is received; a switch unit connected to the overhead line power supply of the mine electric locomotive, the control unit being connected to the control end of the switch unit, the switch unit being configured to be closed or opened when the power switch signal is received.

2. The electric power source control circuit for a mine haulage electric vehicle according to claim 1, characterized by, The signal receiving unit comprises: a remote control receiver connected to the control unit.

3. The mine electric locomotive power supply control circuit according to claim 2, wherein: the remote control receiver is connected to the control unit through a CAN bus.

4. The electric power source control circuit for a mine haulage electric vehicle according to claim 1, characterized by, The signal receiving unit comprises: a local industrial computer connected to the control unit.

5. The mine electric locomotive power supply control circuit according to claim 4, wherein: the local industrial computer is connected to the control unit through an Ethernet.

6. The electric power control circuit for a mine haulage electric vehicle as claimed in claim 1, wherein, The signal receiving unit comprises: a remote control receiver connected to the control unit; a local industrial computer connected to the control unit.

7. The electric power control circuit for a mine haulage electric vehicle as claimed in claim 1, wherein, The switch unit comprises: a contactor, the main contact of the contactor being connected to the overhead line power supply of the mine electric locomotive, the coil of the contactor being connected to a zero line and a live line respectively; a power supply relay, the coil of the power supply relay being connected to the control unit and the zero line respectively, the contact of the power supply relay being connected to the zero line and the live line respectively; an intermediate relay, the coil of the intermediate relay being arranged between the contact of the power supply relay and the live line, and / or the coil of the intermediate relay being arranged between the contact of the power supply relay and the zero line; the contact of the intermediate relay being arranged between the coil of the contactor and the live line, and / or the contact of the intermediate relay being arranged between the coil of the contactor and the zero line.

8. A mine haul electric locomotive, characterized in that The mine electric locomotive power supply control circuit comprises any one of claims 1 to 7.

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