A mine electric locomotive cab interlock circuit

Abstract

The application discloses a mine electric locomotive driver room interlocking circuit, belonging to the field of mine electric locomotive, comprising a first driver control loop, a second driver control loop and a knob switch S1, the first driver control loop is internally provided with a first driver control console, a controller U1 and a controller U2, the second driver control loop is internally provided with a second driver control console, a controller U3 and a controller U4; the first driver control console is connected with the knob switch S1; the first driver control console is connected with the controller U1 and the controller U2 simultaneously, the second driver control console is connected with the knob switch S1; the second driver control console is connected with the controller U3 and the controller U4 simultaneously, the application realizes the interlocking function of the activation end from the hard wire, realizes the mutual exclusion work of the two-end driver control loop through the selective connection of the knob switch S1, can effectively realize the power interlocking of the two-end driver room, and the circuit structure is simple and stable. The circuit structure is simple and stable, easy to realize and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mine electric locomotive, in particular to a mine electric locomotive cab interlocking circuit. BACKGROUND

[0002] The mine electric locomotive is mainly used for long-distance transportation in the mine and on the ground. It is equivalent to the electric locomotive head in railway transportation, which pulls the train composed of mine cars or people cars to walk on the track, completes the transportation of coal, gangue, materials, equipment and personnel. The electric locomotive for transporting coal, gangue, materials, equipment and personnel is called mine electric locomotive. The mine electric locomotive does not produce exhaust emission during operation, does not pollute the air in the mine, helps to improve the air quality in the mine and ensures the health of the miners. The mine electric locomotive has good explosion-proof performance, uses explosion-proof electrical equipment and spark-proof materials, reduces the risk of explosion and fire, and ensures the safety of mine production. In addition, the vibration and noise of the electric locomotive are small, which reduces the potential safety hazard. The driver controller is the core electrical component of vehicle operation, which is responsible for controlling the traction, braking and driving mode of the mine electric locomotive. In order to realize the bidirectional access of the unloading station, the mine electric locomotive is equipped with front and rear driver rooms, and the activation of the driver room is realized through the cooperation of the multi-knob switch and the driver console.

[0003] However, the existing two driver rooms work together sometimes, which will cause program confusion and affect the safety of work. SUMMARY

[0004] In view of the above problems existing in the prior art, the purpose of the present application is to provide a mine electric locomotive cab interlocking circuit to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] A mine electric locomotive cab interlocking circuit, comprising a first driver control loop, a second driver control loop and a knob switch S1, the first driver control loop is provided with a first driver console, a controller U1 and a controller U2, the second driver control loop is provided with a second driver console, a controller U3 and a controller U4;

[0007] The 24V+ port of the first driver console in the first driver control loop is connected with the contact 2 of the knob switch S1; the contact 1 of the knob switch S1 is connected with the positive terminal of the external power supply;

[0008] The 24V- port of the first driver console in the first driver control loop is connected with the negative terminal of the external power supply;

[0009] The CANH port of the first driver console in the first driver control loop is connected with the contact 5 of the knob switch S1;

[0010] The first control console is connected with the input end of the controller U1 and the input end of the controller U2,

[0011] The output end of the controller U1 is connected with the first motor through three-phase lines.

[0012] The output end of the controller U2 is connected with the second motor through three-phase lines.

[0013] The 24V+ port of the second control console in the second control loop is connected with the contact 3 of the knob switch S1.

[0014] The 24V- port of the second control console in the second control loop is connected with the negative terminal of the external power supply.

[0015] The CANH port of the second control console in the second control loop is connected with the contact 4 of the knob switch S1.

[0016] The CANL port of the first control console in the first control loop is connected with the CANL port of the second control console in the second control loop.

[0017] The second control console is connected with the input end of the controller U3 and the input end of the controller U4,

[0018] The output end of the controller U3 is connected with the third motor through three-phase lines.

[0019] The output end of the controller U4 is connected with the fourth motor through three-phase lines.

[0020] As a further scheme of the application, the controller U1 internally comprises a DSP1 chip, a motor temperature detection unit, a current and voltage detection unit and a resolver decoding unit.

[0021] As a further scheme of the application, the controller U2 internally comprises a DSP2 chip, a motor temperature detection unit, a current and voltage detection unit and a resolver decoding unit.

[0022] As a further scheme of the application, the controller U3 internally comprises a DSP3 chip, a motor temperature detection unit, a current and voltage detection unit and a resolver decoding unit.

[0023] As a further scheme of the application, the controller U4 internally comprises a DSP5 chip, a motor temperature detection unit, a current and voltage detection unit and a resolver decoding unit.

[0024] As a further scheme of the application, the external power supply is a 24V direct current power supply.

[0025] As a further scheme of the application, the first control console internally is provided with a display screen and operation buttons; and the second control console internally is also provided with a display screen and operation buttons.

[0026] As a further scheme of the present application: the display screen and operation button in the first cab are of the same model as the display screen and operation button in the second cab.

[0027] Compared with the prior art, the present application has the following advantages:

[0028] The present application realizes the interlocking function of the active end from the hard wire, realizes the mutual exclusion work of the two-end cab control circuit through the selective connection of the knob switch S1, that is, one end works while the other end automatically stops working. The power-on circuit of the cab is controlled through the knob switch, and only when the knob switch controls the cab of one end driver's room to be connected with the power supply, the control system of this end can control the locomotive to run. The present application can effectively realize the power interlocking of the two-end driver's room, and the circuit structure is simple and stable. The circuit structure is simple and stable, easy to realize and maintain, the logic interlocking function of the active end is realized from the hard wire, and the misoperation is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The circuit structure diagram of the mine electric locomotive cab interlocking circuit disclosed in the embodiment is shown. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connected", "connected" should be understood broadly; for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] Please refer to Figure 1 A mine electric locomotive cab interlocking circuit, comprising a first cab control circuit, a second cab control circuit and a knob switch S1, the first cab control circuit is provided with a first cab, a controller U1 and a controller U2, the second cab control circuit is provided with a second cab, a controller U3 and a controller U4;

[0033] The 24V+ port of the first control console in the first control loop is connected with the contact 2 of the knob switch S1; the contact 1 of the knob switch S1 is connected with the positive terminal of the external power supply;

[0034] The 24V- port of the first control console in the first control loop is connected with the negative terminal of the external power supply;

[0035] The CANH port of the first control console in the first control loop is connected with the contact 5 of the knob switch S1;

[0036] The first control console is connected with the input terminal of the controller U1 and the input terminal of the controller U2,

[0037] The output terminal of the controller U1 is connected with the first motor through three-phase lines;

[0038] The output terminal of the controller U2 is connected with the second motor through three-phase lines;

[0039] The 24V+ port of the second control console in the second control loop is connected with the contact 3 of the knob switch S1;

[0040] The 24V- port of the second control console in the second control loop is connected with the negative terminal of the external power supply;

[0041] The CANH port of the second control console in the second control loop is connected with the contact 4 of the knob switch S1;

[0042] The CANL port of the first control console in the first control loop is connected with the CANL port of the second control console in the second control loop;

[0043] The second control console is connected with the input terminal of the controller U3 and the input terminal of the controller U4,

[0044] The output terminal of the controller U3 is connected with the third motor through three-phase lines;

[0045] The output terminal of the controller U4 is connected with the fourth motor through three-phase lines.

[0046] The controller U1 internally comprises a DSP1 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit;

[0047] The controller U2 internally comprises a DSP2 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit;

[0048] The controller U3 internally comprises a DSP3 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit;

[0049] The controller U4 internally comprises a DSP5 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit;

[0050] The internal circuit structures of the controller U1, the controller U2, the controller U3 and the controller U4 are same, no template needs to be added, cost is reduced, safety is increased, and use of the device is facilitated.

[0051] The external power supply is a 24V DC power supply.

[0052] The first control console is internally provided with a display screen and operation buttons; the second control console is also internally provided with a display screen and operation buttons.

[0053] The display screen and the operation buttons in the first control console and the display screen and the operation buttons in the second control console are same in type; a user can operate them by the same method, which is simple and convenient, and no additional learning is needed, so that use is facilitated.

[0054] The locomotive control system comprises double control console control, and the two control loop control strategies are same; the first control console and the second control console adopt a multi-knob switch to control a 24V low-voltage loop for power-on and a CAN communication loop; the knob switch can be used to select the first control loop or the second control loop for separate work.

[0055] When a driver at the first control console end operates a driver key, the contact 1 and the contact 2 of the knob switch S1 are connected, the first control console is powered on, the first control console indicator light is turned on, and it is indicated that the first control console can be used to control the locomotive to run at this time; the first control loop control system starts to work; at this time, if a driver at the second control console end operates the driver key, the contact 1 and the contact 3 of the knob switch S1 are connected, the first control console is powered off, the first control console indicator light is turned off, the second control console is powered on, the second control console indicator light is turned on, the second control loop control system starts to work, and the first control loop control system stops to work.

[0056] Similarly, when the second control loop control system works, if the driver at the first control console end operates the driver key, the contact 1 and the contact 2 of the knob switch S1 are connected, the first control console is powered on, the second control console is powered off, the first control loop control system starts to work, and the second control loop control system stops to work.

[0057] The technical scheme of the present application is as follows: a driver's cab interlocking circuit comprises two front and rear control loops and a multi-knob switch S1; the contact 1 of the switch S1 is connected to the positive pole of an external power supply, the contact 2 is connected to the positive pole of a power input interface of a front control console, and the contact 3 is connected to the positive pole of a power input interface of a rear control console; the contact 4 and the contact 5 of the switch S1 are connected to CAN communication loops of the front control console and the rear control console; and the negative poles of the power input interfaces of the front control console and the rear control console are connected to the negative pole of the external power supply.

[0058] The application realizes the interlocking function of the active end from the hard wire, when one end of the control cabinet is activated, the control system of the end can control the operation of the locomotive, and the other end of the control system stops working.

[0059] The application realizes the mutual exclusion work of the two end control circuits through the selective connection of the knob switch S1, that is, when one end works, the other end automatically stops working. The knob switch controls the power-on circuit of the control cabinet, and only when the knob switch controls the control cabinet of one end of the driver's room to be connected with the power supply, the control system of the end can control the operation of the locomotive. The application can effectively realize the power interlocking of the two ends of the driver's room, and the circuit structure is simple and stable.

[0060] The application has the advantages of simple and stable circuit structure, easy implementation and maintenance, realization of the logic interlocking function of the active end from the hard wire, and avoidance of misoperation.

[0061] It is apparent for those skilled in the art that the application is not limited to the details of the above exemplary embodiments, and the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be regarded as exemplary and non-limiting in any respect. The scope of the application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of the equivalent elements of the claims should be included in the application, and any reference signs in the claims should not be regarded as limiting the involved claims.

[0062] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A mine electric locomotive cab interlock circuit, characterized by, It comprises a first control circuit, a second control circuit and a knob switch S1, the first control circuit is internally provided with a first control console, a controller U1 and a controller U2, the second control circuit is internally provided with a second control console, a controller U3 and a controller U4; The 24V+ port of the first control console in the first control circuit is connected with the contact 2 of the knob switch S1; the contact 1 of the knob switch S1 is connected with the positive terminal of the external power supply; The 24V- port of the first control console in the first control circuit is connected with the negative terminal of the external power supply; The CANH port of the first control console in the first control circuit is connected with the contact 5 of the knob switch S1; The first control console is connected with the input terminal of the controller U1 and the input terminal of the controller U2 simultaneously, The output terminal of the controller U1 is connected with the first motor through three-phase lines; The output terminal of the controller U2 is connected with the second motor through three-phase lines; The 24V+ port of the second control console in the second control circuit is connected with the contact 3 of the knob switch S1; The 24V- port of the second control console in the second control circuit is connected with the negative terminal of the external power supply; The CANH port of the second control console in the second control circuit is connected with the contact 4 of the knob switch S1; The CANL port of the first control console in the first control circuit is connected with the CANL port of the second control console in the second control circuit; The second control console is connected with the input terminal of the controller U3 and the input terminal of the controller U4 simultaneously, The output terminal of the controller U3 is connected with the third motor through three-phase lines; The output terminal of the controller U4 is connected with the fourth motor through three-phase lines.

2. A mine electric locomotive cab interlock circuit according to claim 1, characterized in that, The controller U1 internally comprises a DSP1 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit.

3. A mine electric locomotive cab interlock circuit according to claim 1 wherein, The controller U2 internally comprises a DSP2 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit.

4. A mine electric locomotive cab interlock circuit according to claim 1 wherein, The controller U3 internally comprises a DSP3 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit.

5. A mine electric locomotive cab interlock circuit according to claim 1 wherein, The controller U4 internally comprises a DSP5 chip, a motor temperature detection unit, a current voltage detection unit and a resolver decoding unit.

6. The cab interlock circuit of any one of claims 2-5, wherein the first and second interlock switches are configured to be activated by a single operator control. The external power supply is a 24V direct current power supply.

7. A mine electric locomotive cab interlock circuit according to claim 6 wherein, The first control console is internally provided with a display screen and operation buttons; the second control console is also internally provided with a display screen and operation buttons.

8. A mine electric locomotive cab interlock circuit according to claim 7, characterised in that, The display screen and operation buttons in the first control console are of the same type as the display screen and operation buttons in the second control console.

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