An electrical control system with self-contained power supply and cover on a hybrid railway vehicle

Abstract

The present invention discloses an electric control system for capping with self-contained power supply on board a mixed-iron car. The electric control system provides AC load power supply through the self-contained power supply on board, and has remote control or local control mode, so as to realize the one-key automatic capping and capping of the capping device, as well as the partial actions of capping, capping, arm extension, arm retraction, etc., so as to avoid the operators from being directly exposed to the unsafe environment of dust, high temperature, and splashing of molten iron. The present invention provides real-time visual feedback of the current working status through the remote control transmitter end or the indicator light on the control cabinet panel, so as to provide safe operation guarantee for the electric control system and the operators. At the same time, the remote control transmitter can adopt dual-frequency number selection, corresponding to the controlled mixed-iron car, so as to realize the remote operation of a pair of two cars separately, and the control is safe and reliable, and the operation cost is reduced. In addition, the electric control system adopts the VVVF-PLC control mode to replace the traditional relay control mode, so that the control components are greatly reduced, the failure rate is reduced, and the maintenance is convenient, so as to ensure the production demand of the capping operation of the mixed-iron car.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric control for adding and lifting covers on the tank mouth of a mixing car, and relates to an electric control system for adding covers on a mixing car with an on-board self-supplied power supply. The present invention is suitable for using an on-board self-supplied power supply to drive a frequency converter and a PLC to realize remote control / local control cabinet panel control, and completes the application of electrical integrated control technology for the working processes of adding covers to the mixing car for environmentally friendly transportation of molten iron, lifting covers to receive molten iron or dumping molten iron, etc. Background Art

[0002] As an indispensable molten iron transportation and storage equipment in the modern metallurgical industry, molten iron tank cars play an important role in metallurgical enterprises. The molten iron tank cars widely used at home and abroad are mainly divided into two types: ordinary molten iron tank cars and torpedo-type molten iron tank cars. The torpedo car is a horizontally long torpedo-shaped molten iron tank used in large blast furnaces, also known as a mixing iron car. It includes a tank body for storing and transporting molten iron. The tank mouth is opened at the center of the top of the tank body. The two ends of the tank body are respectively provided with an active end walking support device and a driven end walking support device. At present, most of the tank mouths of domestic mixing iron cars are open-type designs without covers. After the molten iron is injected, the smoke and dust emitted from the tank mouth during the transportation of the mixing iron car causes serious air pollution; at the same time, the temperature of the molten iron in the mixing iron car is lost quickly, especially in the winter when the temperature is low, the temperature drop is more prominent. Some companies also use a cover on the tank mouth of their mixed-iron cars. However, there is no power supply on the mixed-iron car, and manual plug-in operations are still used on the ground to draw power for the covered electronic control part. This treatment method is not suitable for plug-in operators due to the harsh production environment of the mixed-iron car, dust, high temperature and splashing of molten iron, and there are great safety hazards. Summary of the invention

[0003] In view of the technical defects existing in the background technology, the present invention provides an on-board self-contained power supply cover electrical control system for a hybrid rail vehicle, and the technical solution to the technical problem is as follows:

[0004] The present invention discloses an on-board self-contained power supply covering electrical control system for a mixed-iron car, the mixed-iron car comprises a tank body with a tank mouth arranged at the center of the top, and an active end walking support device and a driven end walking support device respectively supported at two ends of the tank body, the active end walking support device is provided with a hydraulic station and a covering device connected to the hydraulic station through a pipeline, the hydraulic station is provided with a hydraulic pump, the covering device comprises a lifting and lowering cover device arranged at the tank mouth and a telescopic arm device arranged on the active end walking support device, the front end of the telescopic arm device is connected to the lifting and lowering cover device, the innovation of the present invention lies in: it also comprises an electric control system, the electric control system comprises a control cabinet and a DC battery pack arranged in the control cabinet; the DC battery pack is connected through a line An inverter is connected, and a DC contactor is arranged on the line between the two; the inverter has an AC power output unit, and the AC power output unit is connected to the switching power module, the PLC controller and the frequency converter through lines respectively; the PLC controller includes a PLC controller I / O module, and the PLC controller I / O module is connected to the switching power module; the input end and the output end of the PLC controller I / O module are respectively connected to the input unit and the output unit, and the output unit is connected to the frequency converter through the line; the frequency converter is connected to the electric motor of the hydraulic pump through the line; the positive and negative poles of the DC battery pack are also connected to the voltage-stabilizing power module, and the voltage-stabilizing power module is connected to the DC contactor starting unit through the line.

[0005] Furthermore, the main contacts of the DC contactor are connected to the circuit between the DC battery pack and the inverter; the DC contactor starting unit includes a starting control branch connected to the positive and negative poles of the voltage-stabilized power supply module, and the starting control branch is provided with a control cabinet inverter start button, a control cabinet inverter stop button and a DC contactor coil, and the moving contacts of the DC contactor are connected in parallel at both ends of the control cabinet inverter start button.

[0006] Furthermore, an overflow valve is connected to the hydraulic station through a pipeline, and the overflow valve is connected to the cover lifting and lowering device through two pipelines, and a cover lifting hydraulic valve and a cover lowering hydraulic valve are respectively provided on the two pipelines. The overflow valve is connected to the telescopic arm device through two pipelines, and an arm extension hydraulic valve and an arm retracting hydraulic valve are respectively provided on the two pipelines; the input unit includes a control cabinet one-key cover lifting button and a control cabinet one-key cover lowering button arranged on the control cabinet, a cover lifting in place sensor and a cover lowering in place sensor arranged on the top of the active end walking support device, and an arm extension in place sensor and an arm retracting in place sensor arranged on the telescopic arm device. The control cabinet one-key cover lifting button, the control cabinet one-key cover lowering button, the cover lifting in place sensor, the cover lowering in place sensor, the arm extension in place sensor and the arm retracting in place sensor are respectively connected to the input end of the PLC controller I / O module through lines; the output unit includes a frequency converter operation relay, a one-key automatic cover lifting relay, and a one-key automatic lowering relay. A cover relay, an overflow valve relay connected to the overflow valve through a line, an AC contactor arranged between an AC power supply AC power output unit and a frequency converter, a cover lifting relay, a cover dropping relay, an arm extending relay and an arm retracting relay respectively connected to the cover lifting hydraulic valve, the cover dropping hydraulic valve, the arm extending hydraulic valve and the arm retracting hydraulic valve through lines, the coil of the AC contactor and the coils of the frequency converter operation relay, the one-button automatic cover lifting relay, the one-button automatic cover dropping relay, the cover lifting relay, the cover dropping relay, the arm extending relay, the arm retracting relay and the overflow valve relay are respectively connected to the output end of the PLC controller I / O module through lines, the moving contacts of the cover lifting relay, the cover dropping relay, the arm extending relay, the arm retracting relay and the overflow valve relay are respectively connected to the cover lifting hydraulic valve, the cover dropping hydraulic valve, the arm extending hydraulic valve, the arm retracting hydraulic valve and the overflow valve and are connected to the switching power supply module; the input end of the frequency converter is connected to the moving contact of the frequency converter operation relay.

[0007] Furthermore, the input unit also includes a control cabinet cover lifting jog button, a control cabinet cover lowering jog button, a control cabinet arm extending jog button and a control cabinet arm retracting jog button, and the four buttons are respectively connected to the input end of the PLC controller I / O module through lines.

[0008] Furthermore, it also includes a charger and an external charging power supply; the output end of the charger is connected to the DC battery pack, and the external charging power supply is connected to the input end of the charger through a charging plug;

[0009] Furthermore, it also includes an indicator light unit connected to the switching power supply module, and the indicator light unit includes first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth indicator light branches; the control cabinet is provided with an inverter operation indicator light, an overflow valve working indicator light and a hydraulic pump operation indicator light, and the control cabinet one-key cover lifting button, the control cabinet one-key cover dropping button, the control cabinet cover lifting jog button, the control cabinet cover dropping jog button, the control cabinet arm extension jog button, the control cabinet arm retraction jog button and the inverter start button are respectively provided with a one-key cover lifting indicator light, a one-key cover dropping indicator light, a cover lifting jog indicator light, a cover dropping jog indicator light, an arm extension jog indicator light, an arm retraction jog indicator light and an inverter operation indicator light; the first indicator light branch is connected to the moving contact of the inverter operation relay and the inverter operation indicator light, and the second indicator light branch is connected to a one-key automatic cover lifting button The normally closed contacts of the relay and the one-touch cover lifting indicator light, the third indicator light branch is connected with the normally closed contacts of the one-touch automatic cover dropping relay and the one-touch cover dropping indicator light, the fourth indicator light branch is connected with the normally closed contacts of the cover lifting relay and the cover lifting inching indicator light, the fifth indicator light branch is connected with the normally closed contacts of the cover dropping relay and the cover dropping inching indicator light, the sixth indicator light branch is connected with the normally closed contacts of the arm extension relay and the arm extension inching indicator light, the seventh indicator light branch is connected with the normally closed contacts of the arm retraction relay and the arm retraction inching indicator light, the eighth indicator light branch is connected with the normally closed contacts of the overflow valve relay and the overflow valve working indicator light, the ninth indicator light branch is connected with the normally closed contacts of the DC contactor and the inverter operation indicator light, and the tenth indicator light branch is connected with the normally closed contacts of the AC contactor and the hydraulic pump operation indicator light.

[0010] Furthermore, the voltage-stabilized power supply module is connected to a receiver unit through a line, and the receiver unit is equipped with a matching remote control transmitter for receiving the command signal of the remote control transmitter and feeding back the operation signal to the remote control transmitter in real time; the receiver unit is provided with an inverter closing unit and an inverter emergency stop unit, a one-key cover lifting unit, a one-key cover dropping unit, a cover lifting unit, a cover dropping unit, an arm extension unit and an arm retraction unit, the inverter closing unit is connected in parallel with the two ends of the inverter start button of the control cabinet on the start control branch through a line, and the inverter emergency stop unit is connected to the start control branch through a line. The one-key cover lifting unit, the one-key cover dropping unit, the cover lifting unit, the cover dropping unit, the arm extension unit and the arm retracting unit are respectively connected to the PLC controller I / O module through lines; the remote control transmitter is provided with a remote control transmitter power closing button, a remote control panel inverter closing button, a remote control panel inverter emergency stop button, a remote control transmitter one-key cover lifting button, a remote control transmitter one-key cover dropping button, a remote control transmitter cover lifting button, a remote control transmitter cover dropping button, a remote control transmitter arm extension button, a remote control transmitter arm retracting button and a remote control panel selection switch, and the remote control panel selection switch is a two-speed conversion switch.

[0011] Furthermore, the input unit also includes a control cabinet selection switch, which is a three-speed conversion switch, the contacts of the first gear are respectively connected with the one-touch cover lifting button and the one-touch cover dropping button of the control cabinet, the contacts of the second gear are respectively connected with the one-touch cover lifting unit, the one-touch cover dropping unit, the cover lifting unit, the cover dropping unit, the arm extension unit and the arm retraction unit, and the contacts of the third gear are respectively connected with the control cabinet cover lifting jog button, the control cabinet cover dropping jog button, the control cabinet arm extension jog button and the control cabinet arm retraction jog button.

[0012] Furthermore, the remote control transmitter is also provided with a remote control transmitter power on indicator light, a ready indicator light and a remote control transmitter inverter on indicator light; the remote control transmitter one-touch cover lift button, the remote control transmitter one-touch cover drop button, the remote control transmitter cover lift button, the remote control transmitter cover drop button, the remote control transmitter arm extension button and the remote control transmitter arm retraction button are all buttons with indicator light functions; the receiver unit includes a receiver unit DA input / output module, and the moving contacts of the DC contactor, the inverter operation relay, the one-touch automatic cover lift relay and the one-touch automatic cover drop relay are respectively connected to the input end of the receiver unit DA input / output module through lines.

[0013] Furthermore, the control cabinet is provided with a control cabinet inverter reset button, which is connected to the input end of the inverter; the receiver unit is provided with a inverter reset unit, which is connected to the input end of the inverter through a line; the inverter is provided with a inverter fault unit, which is connected to the receiver unit DA input / output module through a line; the remote control transmitter is provided with a remote control transmitter inverter reset button, a remote control transmitter inverter reset indicator light and an inverter fault indicator light.

[0014] Furthermore, a display screen is provided on the remote control transmitter; and a power collection module is connected between the DC battery pack and the input end of the DA input / output module of the receiver unit.

[0015] Furthermore, the remote control transmitter is provided with a dual-frequency selection confirmation / cancel button, a lock / unlock button, a dual-frequency switching button, a lock / unlock indicator light and a frequency band selection indicator light.

[0016] Furthermore, a system time-limiting relay is also provided on the start-up control branch.

[0017] Compared with the existing technology, the self-contained power supply capping electrical control system for a mixed-iron car described in the present invention provides AC load power through the self-contained power supply on the car, and can be remotely controlled or locally driven by the variable frequency-PLC control system to replace the traditional relay control method, so as to realize one-key automatic capping and capping of the capping device, as well as inching capping, capping, arm extension, arm retraction and other partial actions, thereby avoiding the direct exposure of operators to work in an unsafe environment of dust, high temperature and molten iron splashing; in addition, the present invention can provide real-time feedback on the current working status through the handheld remote control transmitter end or the control cabinet panel indicator light, which provides safe operation guarantee for the visualization of the capping electrical control system and the operator. At the same time, the handheld remote control transmitter can adopt dual-frequency number selection, corresponding to different controlled mixed-iron cars, to realize remote operation of a pair of two cars separately, with safe and reliable control and reduced operation cost. In addition, the electrical control system of the present invention adopts the VVVF-PLC advanced control method to replace the traditional relay control method. The AC main circuit drives the hydraulic station oil pump motor to provide hydraulic pressure. Each solenoid valve completes the corresponding action requirements. The position sensor controls the action stroke and protection. The control cabinet adopts rainproof, vibration-proof, thermal insulation and heat dissipation treatments. The control is safe and reliable, and the control components are greatly reduced, the failure rate is reduced, and maintenance is convenient, which ensures the production needs of the mixed iron car covering operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the installation of the iron mixing car, the capping device and the electric control system of the present invention;

[0019] Figure 2 It is a schematic block diagram of the connection between the PLC controller, the hydraulic station, the cover lifting and lowering device and the telescopic arm device and the hydraulic valves and relays in the present invention;

[0020] Figure 3 This is a control flow diagram of the electric control system in the present invention;

[0021] Figure 4 It is a schematic diagram of the principle of the DC contactor starting unit in the present invention;

[0022] Figure 5 This is a schematic diagram of the external wiring of the PLC controller I / O module in the present invention;

[0023] Figure 6 It is a schematic diagram of the control principle of the frequency converter in the present invention;

[0024] Figure 7 It is a schematic diagram of the control principle of various solenoid valves in the present invention;

[0025] Figure 8 is a wiring diagram of a receiver unit in the present invention;

[0026] Fig. 9It is a schematic diagram of the control principle of the indicator light unit in the present invention;

[0027] Fig.10 is a schematic diagram of a remote control transmitter in the present invention;

[0028] In the figure: 1. Tank body, 1a. Tank mouth, 2. Active end walking support device, 3. Driven end walking support device, 4. Covering device, 4a. Lifting and lowering cover device, 4b. Telescopic arm device, 5. Hydraulic station, 6. Electronic control system, 7. DC battery pack, 8. Inverter, 9. Voltage stabilized power supply module, 10. DC contactor starting unit, 11. AC power output unit, 12. Switching power supply module, 13. PLC controller, 14. Frequency converter, 15. Hydraulic pump, 16. Receiver unit, 17. PLC controller I / O module, 18. Input unit, 19. Output unit, 20. Charger, 21. Charging plug, 22. Charging power supply, 23. Inverter closing unit, 24. Inverter emergency stop unit, 25. Start control Branch, 26. One-key cover lifting unit, 27. One-key cover dropping unit, 28. Cover lifting unit, 29. Cover dropping unit, 30. Arm extension unit, 31. Arm retraction unit, 32. Inverter reset unit, 33. Remote control transmitter power closing button, 34. Remote control transmitter power closing indicator light, 35. Remote control transmitter inverter closing button, 36. Remote control transmitter inverter reset button, 37. Remote control transmitter one-key cover lifting button, 38. Remote control transmitter one-key cover dropping button, 39. Remote control transmitter cover lifting button, 40. Remote control transmitter cover dropping button, 41. Remote control transmitter arm extension button, 42. Remote control transmitter arm retraction button, 43. Ready indicator light, 44. Inverter fault indicator light, 45. Remote control panel inverter emergency stop button, 46. ​​Remote control panel selection switch, 47. Dual frequency selection confirm / cancel button, 48. Lock / unlock button, 49. Dual frequency switching button, 50. Remote control transmitter inverter closing indicator light, 51. Remote control transmitter inverter reset indicator light, 53. Display screen, 54. Power acquisition module, 55. Receiver unit DA input / output module, 57. Inverter fault unit, 58. Lock / unlock indicator light, 59. Frequency band selection indicator light, 60. Remote control transmitter, 61. First indicator light branch, 62. Second indicator light branch, 63. Third indicator light branch, 64. Fourth indicator light branch, 65. Fifth indicator light branch, 66. Sixth indicator light branch, 67. Seventh indicator light branch, 68. Eighth indicator light branch, 69. 9. The ninth indicator light branch, 70. The tenth indicator light branch, ZM. DC contactor, KM. AC contactor, SS. Control cabinet inverter start button, SB. Control cabinet inverter stop button, SB1. Control cabinet one-touch cover lift button, SB2. Control cabinet one-touch cover drop button, SB3. Control cabinet cover lift jog button, SB4. Control cabinet cover drop jog button, SB5. Control cabinet arm extension jog button, SB6. Control cabinet arm retraction jog button, QS1. Lift cover in place sensor, QS2. Cover drop in place sensor, QS3. Extend arm in place sensor, QS4. Retract arm in place sensor, YA1. Lift cover hydraulic valve, YA2. Cover drop hydraulic valve, YA3. Extend arm hydraulic valve, YA4. Retract arm hydraulic valve, YA5. Overflow valve, KA1.Inverter operation relay, KA2. One-button automatic cover lifting relay, KA3. One-button automatic cover dropping relay, KA4. Cover lifting relay, KA5. Cover dropping relay, KA6. Extending arm relay, KA7. Retracting arm relay, KA8. Overflow valve relay, ZA. Control cabinet selection switch, FW. Control cabinet inverter reset button, KA25. System time limit relay, LD1. Inverter operation indicator, LD2. One-button cover lifting indicator, LD3. One-button cover dropping indicator, LD4. Cover lifting jog indicator, LD5. Cover dropping jog indicator, LD6. Extending arm jog indicator, LD7. Retracting arm jog indicator, LD8. Overflow valve working indicator, LD9. Inverter operation indicator, LD10. AC contactor working indicator. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present disclosure belongs. "Up", "down", "left", "right", "front", "back" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly; "connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The parts not described in detail in the present invention are all known technologies of technicians in the field of this technology.

[0030] like Figures 1 to 10As shown, the present invention is an on-board self-contained power supply capping electrical control system for a mixed-iron car, the mixed-iron car comprises a tank body 1 with a tank mouth 1a arranged at the center of the top, and an active end walking support device 2 and a driven end walking support device 3 respectively supported at both ends of the tank body 1, the active end walking support device 2 and the driven end walking support device 3 are used to complete the transportation of the tank body 1 and to dump the molten iron in the tank body 1 and other functions; the active end walking support device 2 is provided with a hydraulic station 5 and a capping device 4 connected to the hydraulic station 5 through a pipeline, the hydraulic station 5 is provided with a hydraulic pump 15, the capping device 4 comprises a lifting and dropping cover device 4a arranged at the tank mouth 1a and a telescopic arm device 4b arranged on the active end walking support device 2, the front end of the telescopic arm device 4b is connected to the lifting and dropping cover device 4a; in this embodiment, the lifting and dropping cover device 4a is used to cover the tank mouth 1a for transportation or lifting the cover for convenience Dumping the molten iron in the tank body 1 and adding molten iron into the tank body 1, the telescopic arm device 4b is used to extend or retract the cover lifting and dropping device 4a, and cooperate with the cover lifting or dropping action of the cover lifting and dropping device 4a; the hydraulic station 15 provides hydraulic oil for the telescopic arm device 4a and the telescopic arm device 4b in the capping device 4, and the hydraulic pump 15 provides oil pressure; when the tank body 1 needs to receive molten iron, the cover lifting action is completed by the cover lifting and dropping device 4a, and then the telescopic arm device 4b follows to complete the arm retracting action. When the molten iron in the tank body 1 is loaded, the telescopic arm device 4b completes the arm extension action, and the cover lifting and dropping device 4a is moved to the tank mouth 1a. After the cover dropping action is completed by the cover lifting and dropping device 4a, it can be transported. When the iron mixing car moves to the molten iron dumping site, the dumping process is opposite to the above-mentioned tank body receiving molten iron process action. First, the cover lifting action is performed, then the arm retracting action is performed, and finally the molten iron is dumped.

[0031] The hybrid vehicle onboard self-contained power supply cover electrical control system described in this embodiment also includes an electric control system 6, which includes a control cabinet and a DC battery pack 7 arranged in the control cabinet, and the DC battery pack 7 is used to provide power for various devices and loads in the electric control system 6; further, it also includes a charger 20 and an external charging power supply 22, the output end of the charger 20 is connected to the DC battery pack 7, and the external charging power supply 22 is connected to the input end of the charger 20 through a charging plug 21, which is used to charge the DC battery pack 7; the DC battery pack 7 is connected to an inverter 8 through a line, and a DC contactor ZM is arranged on the line between the two, through The DC contactor ZM controls the on-off between the DC battery pack 7 and the inverter 8; the inverter 8 has an AC power output unit 11, and the AC power output unit 11 is connected to the switching power module 12, the PLC controller 13 and the frequency converter 14 through lines; the PLC controller 13 includes a PLC controller I / O module 17, and the PLC controller I / O module 17 is connected to the switching power module 12; the input end and the output end of the PLC controller I / O module 17 are respectively connected to the input unit 18 and the output unit 19, and the output unit 19 is connected to the frequency converter 14 through lines; the frequency converter 14 is connected to the hydraulic The motor of the pump 15 is connected through a line; the positive and negative electrodes of the DC battery pack 7 are also connected to a voltage-stabilized power module unit 9, and the voltage-stabilized power module unit 9 is connected to a DC contactor starting unit 10 through a line, and the DC contactor starting unit 10 controls the on and off of the DC contactor ZM; in this embodiment, the DC battery pack 7 outputs AC220 / 380V AC power through the AC power output unit 11 of the inverter 8, which is used to provide 380V driving power to the motor of the hydraulic pump 15 and AC220V power to the PLC controller 13, and at the same time, the AC power output unit 11 provides power to the input end of the switching power module 12, The switching power supply module 12 is convenient for outputting DC24V direct current, which is used to power the PLC controller I / O module 17, so that the input unit 18 and the output unit 19 connected to the PLC controller I / O module 17 and various control circuits obtain control power; the output unit 19 is connected to the frequency converter 14, the AC power output unit 11 is connected to the frequency converter 14, the frequency converter 14 is connected to the motor of the hydraulic pump 15, and the PLC controller 13 can send instructions to the frequency converter 14 through the output unit 19 according to the specific situation to change the operating frequency of the motor of the hydraulic pump 15 to improve the working efficiency of the hydraulic pump 15, that is, VVVF-PLC control.In this embodiment, the PLC controller can be Siemens S7-200 Smart series PLC, replacing the traditional relay control mode, and the model can be CPU224 (18-point input and 12-point output). The switch power supply module 12 can be provided by the model: SIMATIC PM20724VDC / 10A120-230V AC / DC switch power supply, which also provides working power to other devices in the electric control system; the voltage stabilized power supply module 9 is 200W DC48V / DC24V. Before the electric control system is not working, the control power is taken from the output end of the DC battery pack 7, and then the voltage stabilized power supply module 9 provides control power to the DC contactor ZM and other devices; the frequency converter 14 can be ABB series ACS880-01-25A-3 frequency converter, and the rise time setting is used to avoid the starting current and protect the normal operation of the inverter. More specifically, as. Figure 5 As shown, the AC power output unit 11 is connected to the L and N terminals of the PLC controller 13 to provide an AC220V working power supply for the PLC controller 13; one end of the input unit 18 is connected to the positive pole of the switching power module 12, and then connected to the negative pole of the switching power module 12 through the 1M terminal at the input end of the PLC controller I / O module 17, so as to realize the DC24V control current input of the input unit 18; the 1L+ terminal and the 2L+ terminal at the output end of the PLC controller I / O module 17 are connected to the positive pole of the switching power module 12, and the 1M terminal and the 2M terminal are connected to the negative pole of the switching power module 12, so as to realize the input of the control current of the output unit 19.

[0032] In this embodiment, the main contacts of the DC contactor ZM are connected to the line between the DC battery pack 7 and the inverter 8; the DC contactor starting unit 10 includes a starting control branch 25 connected to the positive and negative poles of the voltage-stabilized power supply module 9, and the starting control branch 25 is provided with a control cabinet inverter start button SS, a control cabinet inverter stop button SB and a coil of the DC contactor ZM. The control cabinet inverter start button SS and the control cabinet inverter stop button SB are respectively a normally open switch button and a normally closed switch button, and the moving contacts of the DC contactor ZM are connected in parallel at both ends of the control cabinet inverter start button SS, and the control cabinet inverter start button SS and the control cabinet inverter stop button SB respectively realize the inverter 8 start and inverter 8 emergency stop functions.

[0033] In this embodiment, the hydraulic station 5 is connected with an overflow valve YA5 through a pipeline for outputting hydraulic oil. The overflow valve YA5 is connected to the cover lifting and lowering device 4a through two pipelines, and the two pipelines are respectively provided with a cover lifting hydraulic valve YA1 and a cover lowering hydraulic valve YA2, which are used for the cover lifting and lowering device 4a to realize the action of lifting and lowering the cover through hydraulic pressure. The overflow valve YA5 is connected to the telescopic arm device 4b through two pipelines, and the two pipelines are respectively provided with an arm extension hydraulic valve YA3 and an arm retraction hydraulic valve YA4, which are used to realize the kinetic energy of the arm extension and retraction of the telescopic arm device 4b, and cooperate with the cover lifting and lowering device 4a to complete the functions of covering and transporting molten iron at the tank mouth 1a and lifting the cover to receive molten iron or dumping molten iron. The cover hydraulic valve YA1, the cover drop hydraulic valve YA2, the arm extension hydraulic valve YA3, the arm retracting hydraulic valve YA4 and the overflow valve YA5 are all solenoid valves; the input unit 18 includes a control cabinet one-touch cover lift button SB1 and a control cabinet one-touch cover drop button SB2 arranged on the control cabinet, a cover lift in place sensor QS1 and a cover drop in place sensor QS2 arranged on the top of the active end walking support device 2, and an arm extension in place sensor QS3 and an arm retracting in place sensor QS4 arranged on the telescopic arm device 4b, the control cabinet one-touch cover lift button SB1, the control cabinet one-touch cover drop button SB2, the cover lift in place sensor QS1, the cover drop in place sensor QS2, the arm extension in place sensor QS3 and the arm retracting in place sensor One end of the device QS4 is respectively connected to the I0.0 terminal, I0.1 terminal, I0.6 terminal, I0.7 terminal, I1.0 terminal and I1.1 terminal of the input end of the PLC controller I / O module 17 through the line, and the other end is connected to the positive pole of the switch power supply module 12; the output unit 19 includes a frequency converter operation relay KA1, a one-button automatic cover lifting relay KA2, a one-button automatic cover dropping relay KA3, an overflow valve relay KA8 connected to the overflow valve YA5 through the line, an AC contactor KM arranged between the AC power supply output unit 11 and the frequency converter 14, and a cover lifting hydraulic valve YA1, a cover dropping hydraulic valve YA2, an arm extension hydraulic valve YA3 and an arm retraction hydraulic valve YA4 respectively through the line. The cover-lifting relay KA4, cover-dropping relay KA5, arm-extending relay KA6 and arm-retracting relay KA7 connected to the hydraulic valve YA4, the coil of the AC contactor KM and the inverter operation relay KA1, one-button automatic cover-lifting relay KA2, one-button automatic cover-dropping relay KA3, cover-lifting relay KA4, cover-dropping relay KA5, arm-extending relay KA6, arm-retracting relay KA7 and one end of the coil of the overflow valve relay KA8 are respectively connected to the Q1.0 terminal, Q0.0 terminal, Q0.1 terminal, Q0.2 terminal, Q0.3 terminal, Q0.4 terminal, Q0.5 terminal, Q0.6 terminal and Q0.7 terminals, and the other end is connected to the 1M terminal or the 2M terminal respectively; in addition, the moving contacts of the cover lifting relay KA4, cover dropping relay KA5, arm extension relay KA6, arm retracting relay KA7 and overflow valve relay KA8 are respectively connected to the coils of the cover lifting hydraulic valve YA1, cover dropping hydraulic valve YA2, arm extension hydraulic valve YA3, arm retracting hydraulic valve YA4 and overflow valve YA5 and are commonly connected to the positive and negative poles of the switch power supply module 12, forming a control circuit for controlling the opening and closing of each solenoid valve; the moving contact of the inverter operation relay KA1 is connected between the DI1 terminal and the COM terminal of the input end of the inverter 14, which is used to control the operation of the inverter 14. The R, S, and T terminals of the inverter 14 are respectively connected to the AC380V power supply provided by the AC power output unit 11, and its U, V, and W terminals are connected to the motor of the hydraulic pump 15, which is used to control the speed of the motor of the hydraulic pump 15 by frequency conversion according to the actual operation situation. .

[0034] In order to more intuitively observe the operation of the entire system, the electric control system 6 also includes an indicator light unit connected to the switch power module 12, and the indicator light unit includes the first, second, third, eighth, ninth and tenth indicator light branches 61, 62, 63, 68, 69 and 70; the control cabinet is provided with an inverter operation indicator light LD1, an overflow valve operation indicator light LD8 and an AC contactor operation indicator light LD10, and the control cabinet one-key cover lifting button SB1, the control cabinet one-key cover falling button SB2 and the inverter start button SS are respectively provided with a one-key cover lifting indicator light LD2, a one-key cover falling indicator light LD3 and an inverter operation indicator light LD9; the first indicator light branch 61 is connected to the inverter operation relay The normally closed contact of KA1 and the inverter operation indicator light LD1, the second indicator light branch 62 is connected with the normally closed contact of the one-touch automatic cover lifting relay KA2 and the one-touch cover lifting indicator light LD2, the third indicator light branch 63 is connected with the normally closed contact of the one-touch automatic cover dropping relay KA3 and the one-touch cover dropping indicator light LD3, the eighth indicator light branch 68 is connected with the normally closed contact of the overflow valve relay KA8 and the overflow valve working indicator light LD8, the ninth indicator light branch 69 is connected with the normally closed contact of the DC contactor ZM and the inverter operation indicator light LD9, the tenth indicator light branch 70 is connected with the normally closed contact of the AC contactor KM and the AC contactor working indicator light LD10.

[0035] When in use, when the control cabinet inverter start button SS on the control cabinet is pressed, the start control branch 25 is connected, the coil of the DC contactor ZM is energized and attracted, the DC contactor ZM moving contact is closed for self-protection, the main contact of the DC contactor ZM is connected to the main circuit of the DC battery pack 7 and the inverter 8, the inverter 8 starts to work, and the inverter operation indicator LD9 lights up; after the inverter 8 works, its AC power output unit 11 outputs AC220V power to provide working power to the PLC controller 13 and the switching power module 12, and provides power to the PLC controller I / O module 17 and the input unit 18 and output unit 19 connected to the PLC controller I / O module 17 through the switching power module 12. At the same time, the switching power module 12 also provides power for other types of control in the electric control system. The circuit provides a DC24V control power supply; after the PLC controller 13 is energized, it outputs through the Q1.0 terminal, connects the coil of the AC contactor KM in the output unit 19, and the main contact of the AC contactor KM connects the input main circuit of the inverter 14. The make contact of the AC contactor KM is closed, and the AC contactor working indicator LD10 lights up. The AC power output unit 11 of the inverter 8 provides AC380V power to the input end of the inverter 14. At the same time, the Q0.0 terminal of the PLC controller 13 outputs, the inverter operation relay KA1 coil in the output unit 19 is energized and attracted, and the make contact of the inverter operation relay KA1 is closed to connect the DI1 terminal of the inverter 14. The inverter 14 works, and the motor of the hydraulic pump 15 runs. At the same time, the inverter operation indicator LD1 lights up.

[0036] When the one-key cover lifting button SB1 of the control cabinet is pressed, the Q0.1 terminal output of the PLC controller 13, the coil of the one-key automatic cover lifting relay KA2 is energized, and its moving contact is closed, and the one-key cover lifting indicator LD2 lights up, and the Q0.7 terminal output of the PLC controller 13, the coil of the overflow valve relay KA8 is energized, and its moving contact is closed to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens, and the overflow valve working indicator LD8 lights up, and the system starts the one-key cover lifting action: that is, the Q0.3 terminal output of the PLC controller 13 is controlled, the coil of the cover lifting relay KA4 is energized, and its moving contact is closed, connecting the coil of the cover lifting hydraulic valve YA1, and the cover lifting hydraulic valve YA1 opens, and the cover lifting and falling device 4a starts the cover lifting action. When it touches the cover lifting in place sensor QS1, the Q0.3 terminal output is stopped, the coil of the cover lifting relay KA4 is de-energized, and its moving contact is disconnected, and the cover lifting hydraulic The coil of valve YA1 loses power, the cover lifting hydraulic valve YA1 closes, and the cover lifting action ends. The Q0.6 terminal output of the control PLC controller 13 is controlled, and the coil of the arm retracting relay KA7 is energized. At the same time, its dynamic contact is closed, connecting the coil of the arm retracting hydraulic valve YA4, and the arm retracting hydraulic valve YA4 opens. The telescopic arm device 4b starts to retract the arm. When it touches the arm retracting in place sensor QS4, the Q0.6 terminal output is stopped, the arm retracting relay KA7 coil loses power, and at the same time, its dynamic contact is disconnected, the arm retracting hydraulic valve YA4 coil loses power, the arm retracting hydraulic valve YA4 closes, and the arm retracting action ends. The Q0.1 terminal and Q0.7 terminal outputs are stopped, the one-button automatic cover lifting relay KA2 coil and the overflow valve relay KA8 coil lose power, and their dynamic contacts are disconnected respectively, the overflow valve YA5 loses power and closes, the one-button cover lifting indicator light LD2 and the overflow valve working indicator light LD8 go out, and the entire one-button cover lifting action ends.

[0037] When the one-touch cover-dropping button SB2 on the control cabinet is pressed, the Q0.2 terminal of the PLC controller 13 outputs, the coil of the one-touch automatic cover-dropping relay KA3 is energized, and its normally closed contact is closed, and the one-touch cover-dropping indicator light LD3 lights up, and the Q0.7 terminal of the PLC controller 13 outputs, the coil of the overflow valve relay KA8 is energized, and its normally closed contact is closed to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens, and the system starts the one-touch cover-dropping action: that is, the Q0.5 terminal of the PLC controller 13 outputs, the coil of the arm relay KA6 is energized, and its normally closed contact is closed to connect the coil of the arm hydraulic valve YA3, and the arm hydraulic valve YA3 opens, and the telescopic arm device 4b starts the arm extension action. When the arm is in place sensor QS3 is touched, the Q0.5 terminal output of the PLC controller 13 is stopped, the coil of the arm relay KA6 is de-energized, and its normally closed contact is disconnected, and the coil of the arm hydraulic valve YA3 is de-energized. The arm extension hydraulic valve YA3 is closed, the arm extension action is completed, the Q0.4 terminal output of the control PLC controller 13 is controlled, the coil of the cover drop relay KA5 is energized, and its dynamic contact is closed to connect the coil of the cover drop hydraulic valve YA2. The cover drop hydraulic valve YA2 opens, and the cover lifting device 4a starts the cover drop action. When it touches the cover drop in place sensor QS2, the Q0.4 terminal output of the PLC controller 13 is stopped, the cover drop relay KA5 coil is de-energized, its dynamic contact is disconnected, the coil of the cover drop hydraulic valve YA2 is de-energized, the cover drop hydraulic valve YA2 is closed, and the cover drop action is completed, the Q0.2 terminal and Q0.7 terminal output of the PLC controller 13 are stopped, the coil of the one-button automatic cover drop relay KA3 and the coil of the overflow valve relay KA8 are de-energized, and the dynamic contacts of the two are disconnected respectively, the overflow valve YA5 is de-energized and closed, the one-button cover drop indicator light LD3 and the overflow valve working indicator light LD8 are off, and the entire one-button cover drop action is completed.

[0038] When the inverter stop button SB of the control cabinet is pressed, the start control branch 25 is disconnected, the coil of the DC contactor ZM loses power, and its main contacts disconnect the main circuit between the DC battery pack 7 and the inverter 8. The inverter 8 stops working, its moving contacts are disconnected, and the inverter operation indicator light LD9 goes out. At the same time, the PLC controller 13 loses power, and the inverter operation indicator light LD1 and the AC contactor working indicator light LD10 go out.

[0039] On the basis of the technical scheme of the above embodiment, the local one-button mode of one-button cover lifting and one-button cover dropping can also be replaced by a local one-button mode of each action (i.e., cover lifting, cover dropping, arm extension, arm retraction), or one of the two modes can be controlled, and the action mode can be switched by setting a selection switch. Taking the two-mode selection control as an example, the input unit 18 also includes a control cabinet cover lifting jog button SB3, a control cabinet cover lowering jog button SB4, a control cabinet arm extension jog button SB5 and a control cabinet arm retracting jog button SB6. The four buttons are respectively connected to the I0.2 terminal, I0.3 terminal, I0.4 terminal and I0.5 terminal of the input end of the PLC controller I / O module 17 through lines. The other end of each of the above-mentioned jog buttons and the other end of the control cabinet one-key cover lifting button SB1 and the control cabinet one-key cover lowering button SB2 are connected to the positive pole of the switch power supply module 12 through a control cabinet selection switch ZA. The control cabinet one-key cover lifting button SB1 and the control cabinet one-key cover lowering button SB2 are selected through the control cabinet selection switch ZA to be connected to the switch power supply module 12, or the control cabinet cover lifting jog button SB3, the control cabinet cover lowering jog button SB4, the control cabinet arm extension jog button SB5 and the control cabinet arm retracting jog button SB6 are connected to the switch The power module 12 is turned on; further, the indicator light unit includes corresponding fourth, fifth, sixth and seventh indicator light branches 64, 65, 66 and 67; the control cabinet cover lifting moment button SB3, the control cabinet cover dropping moment button SB4, the control cabinet arm extension moment button SB5 and the control cabinet arm retracting moment button SB6 are respectively provided with a cover lifting moment indicator light LD4, a cover dropping moment indicator light LD5, an arm extension moment indicator light LD6 and an arm retracting moment indicator light LD7; the fourth indicator light branch 64 is connected with the normally closed contact of the cover lifting relay KA4 and the cover lifting moment indicator light LD4, the fifth indicator light branch 65 is connected with the normally closed contact of the cover dropping relay KA5 and the cover dropping moment indicator light LD5, the sixth indicator light branch 66 is connected with the normally closed contact of the arm extension relay KA6 and the arm extension moment indicator light LD6, and the seventh indicator light branch 67 is connected with the normally closed contact of the arm retracting relay KA7 and the arm retracting moment indicator light LD7.

[0040] When in application, when the control cabinet one-touch cover lifting button SB1 and the control cabinet one-touch cover dropping button SB2 are selected through the control cabinet selection switch ZA and connected to the switch power supply module 12, the operation method is consistent with the operation method when the two buttons are set separately as mentioned above; after pressing the control cabinet inverter start button SS as mentioned above to start the system, when the control cabinet cover lifting jog button SB3, the control cabinet cover dropping jog button SB4, the control cabinet arm extension jog button SB5 and the control cabinet arm retraction jog button SB6 are selected through the control cabinet selection switch ZA and connected to the switch module power supply 12, when the control cabinet cover lifting jog button SB3 is pressed, the Q0.7 terminal output of the PLC controller 13, the overflow valve relay KA8 coil is energized, and its moving contact closes to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens, and at the same time the overflow valve working indicator LD 8 lights up, the system starts to lift the cover, the Q0.3 terminal output of the PLC controller 13, the coil of the cover lifting relay KA4 is energized, and its moving contact is closed to connect the coil of the cover lifting hydraulic valve YA1 and the cover lifting inching indicator light LD4, the cover lifting inching indicator light LD4 lights up, the cover lifting hydraulic valve YA1 opens, and the cover lifting and lowering device 4a starts to lift the cover. When it touches the cover lifting in place sensor QS1, the Q0.3 terminal output stops, the coil of the cover lifting relay KA4 loses power, its moving contact is disconnected, the cover lifting inching indicator light LD4 goes out, the coil of the cover lifting hydraulic valve YA1 loses power, the cover lifting hydraulic valve YA1 closes, the Q0.7 terminal output stops, the coil of the overflow valve relay KA8 loses power, its moving contact is disconnected, the coil of the overflow valve YA5 loses power, the overflow valve YA5 closes, the overflow valve working indicator light LD8 goes out, and the cover lifting action ends.

[0041] When the control cabinet cover drop inching button SB4 is pressed, the Q0.7 terminal of the PLC controller 13 outputs, the overflow valve relay KA8 coil is energized, and its moving contact closes to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens. At the same time, the overflow valve working indicator LD8 lights up, and the system starts to drop the cover. The Q0.4 terminal of the PLC controller 13 outputs, the cover drop relay KA5 coil is energized, and its moving contact closes to connect the coil of the cover drop hydraulic valve YA2 and the cover drop inching indicator LD5. The cover drop inching indicator LD5 lights up, and the cover drops. Hydraulic valve YA2 opens, and the cover lifting and dropping device 4a starts to drop the cover. When it hits the cover in place sensor QS2, the output of terminal Q0.4 stops, the coil of cover dropping relay KA5 loses power, its moving contact is disconnected, the cover dropping indicator light LD5 goes out, the coil of cover dropping hydraulic valve YA2 loses power, the cover dropping hydraulic valve YA2 closes, the output of terminal Q0.7 stops, the coil of overflow valve relay KA8 loses power, its moving contact is disconnected, the coil of overflow valve YA5 loses power, overflow valve YA5 is closed, the overflow valve working indicator light LD8 goes out, and the cover dropping action ends.

[0042] When the control cabinet arm extension jog button SB5 is pressed, the Q0.7 terminal of the PLC controller 13 outputs, the overflow valve relay KA8 coil is energized, and its moving contact closes to connect the coil of the overflow valve YA5, the overflow valve YA5 opens, and the overflow valve working indicator LD8 lights up, the system starts to extend the arm, the Q0.5 terminal of the PLC controller 13 outputs, the arm relay KA6 coil is energized, and its moving contact closes to connect the coil of the arm hydraulic valve YA3 and the arm extension jog indicator LD6, the arm extension jog indicator LD6 lights up, and the arm is extended. The hydraulic valve YA3 opens, and the telescopic arm device 4b starts to extend the arm. When it touches the arm in-position sensor QS3, the output of terminal Q0.5 stops, the coil of the arm relay KA6 loses power, its moving contact is disconnected, the arm inching indicator light LD6 goes out, the coil of the arm hydraulic valve YA3 loses power, the arm hydraulic valve YA3 closes, the output of terminal Q0.7 stops, the coil of the overflow valve relay KA8 loses power, its moving contact is disconnected, the coil of the overflow valve YA5 loses power, the overflow valve YA5 is closed, the overflow valve working indicator light LD8 goes out, and the arm extending action ends.

[0043] When the control cabinet arm retracting jog button SB6 is pressed, the Q0.7 terminal of the PLC controller 13 outputs, the coil of the relief valve relay KA8 is energized, and its moving contact closes to connect the coil of the relief valve YA5, and the relief valve YA5 opens. At the same time, the relief valve working indicator LD8 lights up, and the system starts to retract the arm. The Q0.6 terminal of the PLC controller outputs, the coil of the arm retracting relay KA7 in the output unit 19 is energized, and its moving contact closes, connecting the coil of the arm retracting hydraulic valve YA4 and the arm retracting jog indicator LD7, and the arm retracting jog indicator LD7 lights up. The arm retracting hydraulic valve YA4 opens, and the telescopic arm device 4b starts to retract the arm. When it touches the arm retracting in-position sensor QS4, the output of terminal Q0.6 stops, the coil of arm retracting relay KA7 loses power, its moving contact is disconnected, the arm retracting inching indicator light LD7 goes out, the coil of arm retracting hydraulic valve YA4 loses power, the arm retracting hydraulic valve YA4 closes, the output of terminal Q0.7 stops, the coil of overflow valve relay KA8 loses power, its moving contact is disconnected, the coil of overflow valve YA5 loses power, overflow valve YA5 is closed, the overflow valve working indicator light LD8 goes out, and the arm retracting action ends.

[0044] On the basis of the technical scheme of the above embodiment, a remote control mode can be added to the electric control system 6. The remote control mode can be set separately, or it can be controlled by selecting a mode through the control cabinet selection switch ZA set with the local one-key control mode of one-key cover lifting and one-key cover dropping in the above technical scheme and / or the local inching control mode of each action. This embodiment is explained by selecting one of the three control modes. Specifically, the stabilized power supply 9 is connected to the receiver unit 16 through a line, and the receiver unit 16 is equipped with a matching remote control transmitter 60. The receiver unit 16 It is used to receive the command signal of the remote control transmitter 60 and feed back the system operation status signal to the remote control transmitter 60 in real time for display; the receiver unit 16 is provided with an inverter closing unit 23, an inverter emergency stop unit 24, a one-key cover lifting unit 26, a one-key cover dropping unit 27, a cover lifting unit 28, a cover dropping unit 29, an arm extension unit 30 and an arm retraction unit 31; the inverter closing unit 23 is connected in parallel with the two ends of the control cabinet inverter start button SS on the start control branch 25 through a line, and the inverter emergency stop unit 24 is connected to the start control branch 25 through a line; the inverter closing unit 23 is connected in parallel with the two ends of the control cabinet inverter start button SS on the start control branch 25 through a line; the inverter emergency stop unit 24 is connected to the start control branch 25 through a line; The control cabinet selection switch ZA is set as a three-speed conversion switch, and its ① contact and ② contact are connected for local one-key cover lifting and one-key cover falling control, ③ contact and ④ contact are connected for remote control, and ⑤ contact and ⑥ contact are connected for local inching control of each action. The ① contact, ③ contact and ⑤ contact of the control cabinet selection switch ZA are connected to the positive pole of the switch power supply module 12, and its ② contact is respectively connected to the control cabinet one-key cover lifting button SB1 and the control cabinet one-key cover falling button SB2, and its ⑥ contact is respectively connected to the control cabinet cover lifting inching button SB3, the control cabinet cover falling inching button SB4, and the control cabinet extension inching button SB5. The arm jog button SB5 is connected to the control cabinet arm retracting jog button SB6, and its ④ contacts are respectively connected to one end of the one-key cover lifting unit 26, one-key cover dropping unit 27, cover lifting unit 28, cover dropping unit 29, arm extension unit 30 and arm retracting unit 31, and the other ends of the one-key cover lifting unit 26, one-key cover dropping unit 27, cover lifting unit 28, cover dropping unit 29, arm extension unit 30 and arm retracting unit 31 are respectively connected to the I0.0 terminal, I0.1 terminal, I0.2 terminal, I0.3 terminal, I0.4 terminal and I0.5 terminals; the remote control transmitter 60 is provided with a remote control transmitter power closing button 33, a remote control panel inverter closing button 35, a remote control panel inverter emergency stop button 45, a remote control transmitter one-key cover lifting button 37, a remote control transmitter one-key cover closing button 38, a remote control transmitter cover lifting button 39, a remote control transmitter cover closing button 40, a remote control transmitter arm extension button 41, a remote control transmitter arm retraction button 42 and a remote control panel selection switch 46, which are used to send corresponding control instructions to the receiver unit 16, and the remote control panel selection switch 46 is a two-speed conversion switch, which is used to select "one-key control" or "jog" mode in the remote control control mode, respectively corresponding to the local one-key control mode mode and local inching control mode; further, the remote control transmitter 60 is also provided with a remote control transmitter power on indicator light 34, a ready indicator light 43 and a remote control transmitter inverter on indicator light 50, which are used to display the working status of the components in the system; the remote control transmitter one-key cover lift button 37, the remote control transmitter one-key cover drop button 38, the remote control transmitter cover lift button 39, the remote control transmitter cover drop button 40, the remote control transmitter arm extension button 41 and the remote control transmitter arm retraction button 42 are all buttons with indicator light functions, which are used to display the working status returned by the receiver unit 16 after sending control instructions to the receiver unit 16 through these buttons; such as. Figure 8 As shown, the receiver unit 16 includes a receiver unit DA input / output module 55, which is provided with DI0 terminal, DI1 terminal, DI2 terminal, DI3 terminal, DI4 terminal, AI0+ terminal, AI0- terminal and COM terminal for signal input, and its DC24+ terminal and GND terminal are used to connect the positive and negative poles of the voltage-stabilized power supply 9, and its A / YR and B / YR terminals are used to connect with the A terminal and B terminal provided on the receiver unit 16 for signal transmission, and the moving contacts of the DC contactor ZM, the inverter operation relay KA1, the one-button automatic cover lifting relay KA2, the one-button automatic cover falling relay KA3, the cover lifting relay KA4, the cover falling relay KA5, the arm extension relay KA6 and the arm retraction relay KA7 can be respectively connected to the receiver unit DA input / output module 55 through the line, Figure 8Only the normally closed contacts of the DC contactor ZM, the inverter operation relay KA1, the one-touch automatic cover lifting relay KA2 and the one-touch automatic cover lowering relay KA3 are shown, which are respectively connected between the DI3 terminal, the DI2 terminal, the DI0 terminal, the DI1 terminal and the COM terminal of the receiver unit DA input / output module 55. Other normally closed contacts such as the cover lifting relay KA4, the cover lowering relay KA5, the arm extension relay KA6 and the arm retraction relay KA7 can also be connected to other input terminals of the receiver unit DA input / output module 55 in the same way, which are used for inputting the working status signal of the system and sending the feedback information to the remote control transmitter 60 through the receiver unit 16. In this embodiment, the receiver unit 16 and the remote control transmitter 60 are both provided with corresponding communication modules and can establish communication, so as to send command signals to each other and complete corresponding functions according to the received commands. This technology belongs to the prior art and will not be elaborated here. The receiver unit 16 is used to receive the command signal of the remote control transmitter 60, and output the corresponding control command according to the command signal to complete the corresponding control of each functional unit. At the same time, the operating status of each component can be fed back to the remote control transmitter 60 and displayed through various indicator lights. The remote control transmitter 60 is used to send command information to the receiver unit 16 and receive the information fed back by the receiver unit 16. The remote control transmitter 21 has its own charging power supply. The receiver unit 16 is used to connect to the positive and negative poles of the stabilized power supply 9 by setting the DC24+ terminal and the DC24- terminal to obtain the working power supply. The inverter closing unit 23 and the inverter emergency stop unit 24 are respectively arranged on the receiver unit 16, and the two are respectively connected through the receiver. The Y9 terminal and the COM5 terminal as well as the Y1C terminal and the COM3 terminal on the unit 16 realize the functions of the normally open switch button and the normally closed switch button of the control cabinet inverter start button SS and the control cabinet inverter stop button SB, and connect the inverter closing unit 23 and the inverter emergency stop unit 24 to the start control branch 25 for control; the one-key cover lifting unit 26, the one-key cover dropping unit 27, the cover lifting unit 28, the cover dropping unit 29, the arm extension unit 30 and the arm retracting unit 31 respectively realize the corresponding switch functions of the control cabinet one-key cover lifting button SB1, the control cabinet one-key cover dropping button SB2, the control cabinet cover lifting jog button SB3, the control cabinet cover dropping jog button SB4, the control cabinet arm extension jog button SB5 and the control cabinet arm retracting jog button SB6 through the Y3 terminal and the COM2 terminal, the Y4 terminal and the COM2 terminal, the Y5 terminal and the COM2 terminal, the Y6 terminal and the COM2 terminal, the Y7 terminal and the COM4 terminal and the Y8 terminal and the COM4 terminal on the receiver unit 16.

[0045] During operation, the remote control transmitter power closing switch 33 on the remote control transmitter 60 is pressed, the remote control transmitter 60 is powered on, and the remote control transmitter power closing indicator light 34 is lit; when the remote control panel inverter closing button 35 on the remote control transmitter 60 is pressed, the remote control transmitter 60 sends a command to the receiver unit 16, the receiver unit 16 receives the command and closes the inverter closing unit 23, connects the start control circuit 25, the coil of the DC contactor ZM is energized and attracted, the DC contactor ZM moving contact closes for self-protection, the main contact of the DC contactor ZM connects the main circuit of the DC battery pack 7 and the inverter 8, the inverter 8 starts to work, and the inverter operation indicator light LD9 is lit. At the same time, the DC contactor ZM moving contact closes, connects the DI3 terminal of the receiver unit DA input / output module 55 and sends the command signal to the receiver unit 16, and the receiver unit 16 sends a command to the remote control transmitter. 60 sends a feedback signal, the remote control transmitter 60 receives the signal and turns on the inverter closing indicator light 50 of the remote control transmitter; after the inverter 8 works, its AC power output unit 11 outputs AC220V power to provide working power to the PLC controller 13 and the switch power module 12, and provides power to the PLC controller I / O module 17 and the input unit 18 and output unit 19 connected to the PLC controller I / O module 17 through the switch power module 12. At the same time, the switch power module 12 also provides DC24V control power for other control circuits in the electric control system; after the PLC controller 13 is powered, it outputs through the Q1.0 terminal to connect the coil of the AC contactor KM, and the main contact of the AC contactor KM connects the input main circuit of the inverter 14. The AC power output unit 11 of the inverter 8 provides AC380V power to the input end of the inverter 14, and Q0.0 terminal output, the inverter running relay KA1 coil is energized and attracted, and its moving contact is closed to connect the DI1 terminal of the inverter 14 and the DI2 terminal of the receiver unit DA input / output module 55, the inverter 14 works, the motor of the hydraulic pump 15 runs, and at the same time, the receiver unit 16 sends a feedback signal to the remote control transmitter 60, the remote control transmitter 60 receives the signal and makes its ready indicator light 43 light up; at this time, the system outputs DC24V through the switching power supply module 12 to the input unit 18 and output unit 19 connected to the PLC controller 13, and selects different control modes through the control cabinet selection switch ZA in the input unit 18. When the control cabinet selection switch ZA connects contacts ① and ②, it is used for local One-key cover lifting and one-key cover lowering control, this control mode is consistent with the aforementioned local one-key control mode, and will not be elaborated here; when the control cabinet selection switch ZA is connected to contacts ⑤ and ⑥, this control mode is consistent with the aforementioned action point control mode, and will not be elaborated here; when the control cabinet selection switch ZA is connected to contacts ③ and ④, the system switches to the remote control mode, and the remote control panel selection switch 46 is selected to the "one-key automatic" gear. When the remote control transmitter one-key cover lifting button 37 is pressed, the remote control transmitter 60 sends a command to the receiver unit 16, the receiver unit 16 receives the command and closes the one-key cover lifting unit 26, the Q0.1 terminal of the PLC controller 13 is output, the one-key automatic cover lifting relay KA2 coil is energized, and its dynamic closing The contact closure connects the DI0 terminal of the receiver unit DA input / output module 55 and sends the command signal to the receiver unit 16. The receiver unit 16 sends a feedback signal to the remote control transmitter 60. The remote control transmitter 60 receives the signal and turns on the indicator light of the one-key cover lifting button 37 of the remote control transmitter. The Q0.7 terminal output of the PLC controller 13, the coil of the overflow valve relay KA8 is energized, and its moving contact closes to connect the coil of the overflow valve YA5. The overflow valve YA5 opens, and the system starts the one-key cover lifting action: that is, the Q0.3 terminal output of the PLC controller 13 is controlled, the coil of the cover lifting relay KA4 is energized, and its moving contact closes, the coil of the cover lifting hydraulic valve YA1 is energized, the cover lifting hydraulic valve YA1 opens, and the cover lifting device Set 4a to start the cover lifting action. When it touches the cover lifting position sensor QS1, the Q0.3 terminal output stops, the cover lifting relay KA4 coil loses power, its dynamic contact opens, the cover lifting hydraulic valve YA1 closes, and the cover lifting action ends. The PLC controller outputs the Q0.6 terminal, the arm retracting relay KA7 coil is energized, its dynamic contact closes, and the coil of the arm retracting hydraulic valve YA4 is connected. The arm retracting hydraulic valve YA4 opens, and the telescopic arm device 4b starts the arm retracting action. When it touches the arm retracting position sensor QS4, the Q0.6 terminal output stops, the arm retracting relay KA7 coil loses power, and its dynamic contact opens, the arm retracting hydraulic valve YA4 coil loses power, the arm retracting hydraulic valve YA4 closes, and the arm retracting action ends. The Q0.1 terminal and Q0.7 terminal output, the coil of the one-key automatic cover lifting relay KA2 and the coil of the overflow valve relay KA8 lose power, the moving contacts of the two are disconnected respectively, the DI0 terminal of the receiver unit DA input / output module 55 loses the signal and returns the signal to the remote control transmitter 60 through the receiver unit 16, the indicator light of the one-key cover lifting button 37 of the remote control transmitter goes out, and at the same time, the coil of the overflow valve YA5 loses power, the overflow valve YA5 closes, and the whole one-key cover lifting action ends.

[0046] When the one-touch cover-dropping button 38 of the remote control transmitter is pressed, the remote control transmitter 60 sends a command to the receiver unit 16, the receiver unit 16 receives the command and closes the one-touch cover-dropping unit 27, the Q0.2 terminal of the PLC controller 13 is output, the coil of the one-touch automatic cover-dropping relay KA3 is energized, its moving contact closes and connects the DI1 terminal of the receiver unit DA input / output module 55 and sends the command signal to the receiver unit 16, the receiver unit 16 sends a feedback signal to the remote control transmitter 60, the remote control transmitter 60 receives the signal and closes the remote control transmitter 60. The indicator light of the one-key cover-dropping button 38 of the device lights up, the Q0.7 terminal of the PLC controller 13 outputs, the coil of the overflow valve relay KA8 is energized, and its dynamic contact closes to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens, and the system starts the one-key cover-dropping action: that is, the Q0.5 terminal of the PLC controller 13 outputs, the coil of the arm extension relay KA6 is energized, and its dynamic contact closes to connect the coil of the arm extension hydraulic valve YA3, and the arm extension hydraulic valve YA3 opens, and the telescopic arm device 4b starts to extend the arm. When it touches the arm in-place sensor QS3, it stops Q0 .5 terminal output, the arm extension relay KA6 coil loses power, its moving contact opens, the arm extension hydraulic valve YA3 coil loses power, the arm extension hydraulic valve YA3 closes, the arm extension action ends, the control PLC controller 13 Q0.4 terminal output, the cover drop relay KA5 coil is energized, its moving contact closes and connects the cover drop hydraulic valve YA2 coil, the hydraulic valve YA2 opens, the cover lifting device 4a starts the cover drop action, when it touches the cover drop in place sensor QS2, the PLC controller 13 Q0.4 terminal output stops, the cover drop relay KA5 coil loses power, its The normally closed contact is disconnected, the coil of the cover-dropping hydraulic valve YA2 loses power, the cover-dropping hydraulic valve YA2 closes, the cover-dropping action ends, the outputs of terminals Q0.2 and Q0.7 are stopped, the coil of the one-touch automatic cover-dropping relay KA3 loses power, and its normally closed contact disconnects the DI1 terminal input of the receiver unit DA input / output module 55, and returns the signal to the remote control transmitter 60 through the receiver unit 16. The indicator light of the one-touch cover-dropping button 38 of the remote control transmitter goes out. At the same time, the coil of the overflow valve YA5 loses power, the overflow valve YA5 closes, and the entire one-touch cover-dropping action ends.

[0047] When the remote control panel selection switch 46 selects the "jog" gear, when the remote control transmitter cover lifting button 39 is pressed and a command is sent to the receiver unit 16, the receiver unit 16 receives the command and closes the cover lifting unit 28, the Q0.7 terminal of the PLC controller 13 outputs, the overflow valve relay KA8 coil is energized, and its moving contact closes to connect the coil of the overflow valve YA5, the overflow valve YA5 opens, and the system starts to lift the cover, the Q0.3 terminal of the PLC controller 13 outputs, the cover lifting relay KA4 coil is energized, and its moving contact closes to connect the coil of the overflow valve YA5, and the overflow valve YA5 opens. The closing contact is closed, and the coil of the cover lifting hydraulic valve YA1 is connected. The cover lifting hydraulic valve YA1 opens, and the cover lifting and lowering device 4a starts to lift the cover. When it touches the cover lifting in place sensor QS1, the output of terminal Q0.3 is stopped, the coil of the cover lifting relay KA4 loses power, and its moving contact is disconnected, the coil of the cover lifting hydraulic valve YA1 loses power, the cover lifting hydraulic valve YA1 closes, and the output of terminal Q0.7 is stopped. The coil of the overflow valve relay KA8 loses power, and its moving contact is disconnected, the coil of the overflow valve YA5 loses power, the overflow valve YA5 closes, and the cover lifting action ends.

[0048] When the cover-drop button 40 of the remote control transmitter is pressed and a command is sent to the receiver unit 16, the receiver unit 16 receives the command and closes the cover-drop unit 29, the Q0.7 terminal of the PLC controller 13 outputs, the coil of the overflow valve relay KA8 is energized, and its moving contact closes and connects the coil of the overflow valve YA5. The overflow valve YA5 opens, and the system starts the cover-drop action. The Q0.4 terminal of the PLC controller 13 outputs, the coil of the cover-drop relay KA5 is energized, and its moving contact closes and connects the cover-drop hydraulic The coil of valve YA2, the lifting cover hydraulic valve YA1 opens, and the lifting cover device 4a starts to drop the cover. When it touches the cover in place sensor QS2, the output of terminal Q0.4 stops, the coil of cover dropping relay KA5 loses power, and its moving contact is disconnected, the coil of cover dropping hydraulic valve YA2 loses power, and the cover dropping hydraulic valve YA2 closes, and the output of terminal Q0.7 stops, the coil of overflow valve relay KA8 loses power, and its moving contact is disconnected, the coil of overflow valve YA5 loses power, and overflow valve YA5 closes, and the cover dropping action ends.

[0049] When the arm extension button 41 of the remote control transmitter is pressed and a command is sent to the receiver unit 16, the receiver unit 16 receives the command and closes the arm extension unit 30, the Q0.7 terminal of the PLC controller 13 outputs, the coil of the relief valve relay KA8 is energized, and its normally closed contact closes to connect the coil of the relief valve YA5, the relief valve YA5 opens, the system starts to extend the arm, the Q0.5 terminal of the PLC controller 13 outputs, the coil of the arm extension relay KA6 is energized, and its normally closed contact closes, and the arm extension hydraulic valve Y The coil of A3 is energized, the arm hydraulic valve YA3 opens, and the telescopic arm device 4b starts to extend the arm. When it touches the arm in-position sensor QS3, the output of terminal Q0.5 stops, the coil of arm relay KA6 loses power, and its normally closed contact is disconnected. The coil of arm hydraulic valve YA3 loses power, and the arm hydraulic valve YA3 closes, and the output of terminal Q0.7 stops. The coil of overflow valve relay KA8 loses power, and its normally closed contact is disconnected. The coil of overflow valve YA5 loses power, and overflow valve YA5 closes, and the arm extending action ends.

[0050] When the arm retracting button 42 of the remote control transmitter is pressed and a command is sent to the receiver unit 16, the receiver unit 16 receives the command and closes the arm retracting unit 31, the Q0.7 terminal of the PLC controller 13 outputs, the coil of the relief valve relay KA8 is energized, and its moving contact closes to connect the coil of the relief valve YA5, the relief valve YA5 opens, the system starts to extend the arm, the Q0.6 terminal of the PLC controller outputs, the coil of the arm retracting relay KA7 is energized, and its moving contact closes, and the arm retracting hydraulic valve Y The coil of A4 is energized, the arm retracting hydraulic valve YA4 opens, and the telescopic arm device 4b starts to retract the arm. When it touches the arm retracting in place sensor QS4, the output of terminal Q0.6 is stopped, the coil of arm retracting relay KA7 is de-energized, and its moving contact is disconnected. The coil of arm retracting hydraulic valve YA4 is de-energized, and the arm retracting hydraulic valve YA4 is closed. The output of terminal Q0.7 is stopped, the coil of overflow valve relay KA8 is de-energized, and its moving contact is disconnected. The coil of overflow valve YA5 is de-energized, and overflow valve YA5 is closed, and the arm retracting action ends.

[0051] The above-mentioned remote control transmitter cover lifting button 39, remote control transmitter cover lowering button 40, remote control transmitter arm extension button 41 and remote control transmitter arm retracting button 42 can also be used in the same way as the remote control transmitter one-touch cover lifting button 37 and the remote control transmitter one-touch cover lowering button 38 so that the indicator light provided by the control is lit when in action, and the indicator light provided by the control is turned off when the action stops.

[0052] When the inverter emergency stop button 45 on the remote control panel of the remote control transmitter 60 is pressed and a command is sent to the receiver unit 16, the receiver unit 16 receives the command and disconnects the inverter emergency stop unit 23, the start control branch 25 is disconnected, the coil of the DC contactor ZM loses power, the main contacts of the DC contactor ZM disconnect the main circuit of the DC battery pack 7 and the inverter 8, and the inverter 8 stops working. At the same time, the DC contactor ZM moving contact disconnects the DI3 terminal signal input of the receiver unit DA input / output module 55 and sends the command signal to the receiver unit 16. The receiver unit 16 sends a feedback signal to the remote control transmitter 60, and the remote control transmitter 60 receives the signal and turns off its remote control transmitter inverter closing indicator light 50.

[0053] In this embodiment, the remote control transmitter 60 receives the feedback signal sent by the receiver unit 16 and controls the on or off of the indicator lights on the remote control transmitter 60 and the indicator lights on each button. This can be accomplished through a conventional control circuit, which belongs to the prior art and can be designed according to actual conditions, so it will not be elaborated here.

[0054] In the technical solution of the above embodiment, the control cabinet may also be provided with a control cabinet inverter reset button FW, which is connected to the DI3 terminal of the input end of the inverter 14, and is used to reset the inverter 14 through this button when a fault occurs; the reset operation of the inverter 14 can also be completed by remote control, and an inverter reset unit 32 is provided on the receiver unit 16, and the inverter reset unit 32 realizes control through the Y10 terminal and the COM5 terminal provided on the receiver unit 16. The switch function of the cabinet inverter reset button FW is that the inverter reset unit 32 is connected to the DI3 terminal of the input end of the inverter 14 through a line; an inverter fault unit 57 is also arranged between the NO terminal and the COM terminal on the inverter 14, and the inverter fault unit 57 is connected to the DI4 terminal of the receiver unit DA input / output module 55 through a line; the remote control transmitter 60 is provided with a remote control transmitter inverter reset button 36, a remote control transmitter inverter reset indicator light 51 and an inverter fault indicator light 44. When the external overload protection of the inverter 14 is activated, the signal output by the inverter fault unit 57 is connected to the DI4 terminal of the receiver unit DA input / output module 55, and a feedback signal is sent to the remote control transmitter 60 through the receiver unit 16, and the inverter fault indicator light 44 of the remote control transmitter 60 lights up. At this time, the inverter can be reset by pressing the remote control transmitter inverter reset button 36 or the control cabinet inverter reset button FW. After resetting, the inverter 14 returns to normal state, sends a feedback signal to the remote control transmitter 60 through the receiver unit 16, and the inverter fault indicator light 44 of the remote control transmitter 60 goes out.

[0055] In order to grasp the power level of the DC battery pack 7 in real time, a display screen 53 is provided on the remote control transmitter 60; a power acquisition module 54 is connected between the DC battery pack 7 and the AI0+ terminal and the AI0- terminal of the input end of the receiver unit DA input / output module 55, and the power information of the DC battery pack 7 is transmitted to the receiver unit DA input / output module 55 through the external power acquisition module 54, and then a feedback signal is sent to the remote control transmitter 60 through the receiver unit 16, and the percentage power value of the DC battery pack 7 is displayed on the display screen 53 through the remote control transmitter 60.

[0056] In order to enable one remote control transmitter 60 to control two hybrid rail vehicles, the remote control transmitter 60 may also be provided with a dual-frequency selection confirmation / cancel button 47, a lock / unlock button 48, a dual-frequency switching button 49, a lock / unlock indicator light 58 and a frequency band selection indicator light 59. By selecting different frequency bands, it can be paired with other receiver units 16 with communication frequency bands set in advance to control the two hybrid rail vehicles. During operation, first press the dual-frequency switching button 49 to switch different frequency bands, and the frequency band selection indicator light 59 lights up and flashes to display the currently selected frequency band (in design, the frequency band selection indicator light 59 can determine which communication frequency band is determined by color, or two frequency band selection indicator lights 59 can be set to correspond to different communication frequency bands). After selection, press the dual-frequency selection confirmation / cancel button 47, and the frequency band selection indicator light 59 stops flashing. At the same time, in order to avoid the operator's misoperation of the dual-frequency selection confirmation / cancel button 47 and the dual-frequency switching button 49 on the remote control transmitter 60, after selecting the communication frequency band, the communication frequency band can be locked by pressing the lock / unlock button 48. At this time, the lock / unlock indicator light 58 lights up to ensure the reliability of pressing the buttons of the remote control transmitter 60.

[0057] On the basis of the technical solution of the above embodiment, the starting control branch 25 can also be provided with a break contact of the system time-limiting relay KA25, and the entire system can be interlocked and controlled through the relay and the PLC controller 13. The connection between the starting control branch 25 and the voltage-stabilized power supply 9 can be cut off as needed, thereby cutting off the main circuit between the inverter 8 and the DC battery pack 7 to ensure safety.

Claims

1. An on-board self-powered capping electrical control system for a mixed-iron vehicle, the mixed-iron vehicle comprising a tank body (1) with a tank opening (1a) arranged at the center of the top, and an active end walking support device (2) and a driven end walking support device (3) respectively supported at two ends of the tank body (1), the active end walking support device (2) being provided with a hydraulic station (5) and a capping device (4) connected to the hydraulic station (5) through a pipeline, the hydraulic station (5) being provided with a hydraulic pump (15), the capping device (4) comprising a capping device (4a) arranged at the tank opening (1a) and a telescopic arm device (4b) arranged on the active end walking support device (2), the front end of the telescopic arm device (4b) being connected to the capping device (4a), characterized in that: The invention also comprises an electric control system (6), the electric control system (6) comprising a control cabinet and a DC battery pack (7) arranged in the control cabinet; the DC battery pack (7) is connected to an inverter (8) via a line, and a DC contactor (ZM) is arranged on the line between the two; the inverter (8) has an AC power output unit (11), and the AC power output unit (11) is respectively connected to a switching power supply module (12), a PLC controller (13) and a frequency converter (14) via lines; the PLC controller (13) comprises a PLC controller I / O module (1 7), the PLC controller I / O module (17) is connected to the switch power supply module (12); the input end and the output end of the PLC controller I / O module (17) are respectively connected to the input unit (18) and the output unit (19), and the output unit (19) is connected to the frequency converter (14) through a line; the frequency converter (14) is connected to the motor of the hydraulic pump (15); the positive and negative electrodes of the DC battery pack (7) are also connected to the voltage-stabilized power supply module (9), and the voltage-stabilized power supply module (9) is connected to the DC contactor starting unit (10) through a line; The hydraulic station (5) is connected to an overflow valve (YA5) through a pipeline, and the overflow valve (YA5) is connected to the cover lifting and lowering device (4a) through two pipelines, and the two pipelines are respectively provided with a cover lifting hydraulic valve (YA1) and a cover lowering hydraulic valve (YA2), and the overflow valve (YA5) is connected to the telescopic arm device (4b) through two pipelines, and the two pipelines are respectively provided with an arm extension hydraulic valve (YA3) and an arm retraction hydraulic valve (YA4); the input unit (18) includes a control cabinet one-touch cover lifting button (SB1) and a control cabinet one-touch cover lowering button (SB2) arranged on the control cabinet, a cover lifting in-position sensor (QS1) and a cover lowering sensor (QS2) arranged on the top of the active end walking support device (2), and a cover lowering and lowering sensor (QS1). A cover in place sensor (QS2) and an arm in place sensor (QS3) and an arm in place sensor (QS4) arranged on a telescopic arm device (4b); the control cabinet one-touch cover lifting button (SB1), the control cabinet one-touch cover dropping button (SB2), the cover in place sensor (QS1), the cover dropping sensor (QS2), the arm in place sensor (QS3) and the arm in place sensor (QS4) are respectively connected to the input end of the PLC controller I / O module (17) through lines; the output unit (19) includes a frequency converter operation relay (KA1), a one-touch automatic cover lifting relay (KA2), a one-touch automatic cover dropping relay (KA3), and a relief valve (YA5) connected through lines. ), an AC contactor (KM) provided between an AC power supply output unit (11) and a frequency converter (14), a cover-lifting relay (KA4), a cover-dropping relay (KA5), an arm-extending relay (KA6) and an arm-retracting relay (KA7) connected to a cover-lifting hydraulic valve (YA1), a cover-dropping hydraulic valve (YA2), an arm-extending hydraulic valve (YA3) and an arm-retracting hydraulic valve (YA4) through lines, a coil of the AC contactor (KM) and a frequency converter operation relay (KA1), a one-button automatic cover-lifting relay (KA2), a one-button automatic cover-dropping relay (KA3), a cover-lifting relay (KA4), a cover-dropping relay (KA5), an arm-extending relay (KA6) and an arm-retracting relay (KA7) respectively connected to the cover-lifting hydraulic valve (YA1), the cover-dropping hydraulic valve (YA2), the arm-extending hydraulic valve (YA3) and the arm-retracting hydraulic valve (YA4) through lines, The coils of the arm relay (KA6), the arm retracting relay (KA7), and the overflow valve relay (KA8) are respectively connected to the output end of the PLC controller I / O module (17) through lines, and the moving contacts of the cover lifting relay (KA4), the cover dropping relay (KA5), the arm extension relay (KA6), the arm retracting relay (KA7), and the overflow valve relay (KA8) are respectively connected to the cover lifting hydraulic valve (YA1), the cover dropping hydraulic valve (YA2), the arm extension hydraulic valve (YA3), the arm retracting hydraulic valve (YA4), and the overflow valve (YA5) and are connected to the switch power supply module (12); the input end of the frequency converter (14) is connected to the moving contact of the frequency converter operation relay (KA1); The input unit (18) also includes a control cabinet cover lifting jog button (SB3), a control cabinet cover lowering jog button (SB4), a control cabinet arm extension jog button (SB5) and a control cabinet arm retraction jog button (SB6), and the four buttons are respectively connected to the input end of the PLC controller I / O module (17) through lines; The voltage-stabilized power supply module (9) is connected to a receiver unit (16) via a line. The receiver unit (16) is equipped with a matching remote control transmitter (60) for receiving a command signal from the remote control transmitter (60) and feeding back an operation signal to the remote control transmitter (60) in real time. The receiver unit (16) is provided with an inverter closing unit (23), an inverter emergency stop unit (24), a one-key cover lifting unit (26), a one-key cover dropping unit (27), a cover lifting unit (28), a cover dropping unit (29), an arm extension unit (30) and an arm retraction unit (31). The inverter closing unit (23) is connected in parallel with two ends of the inverter start button (SS) of the control cabinet on the start control branch (25) through a line, the inverter emergency stop unit (24) is connected to the start control branch (25) through a line, and the one-key cover lifting unit (26), the one-key cover lowering unit (27), the cover lifting unit (28), the cover lowering unit (29), the arm extension unit (30) and the arm retraction unit (31) are respectively connected to the PLC controller I / O module (17) through lines; the remote control transmitter (60) is provided with a remote control transmitter power closing button (33), a remote control The input unit (18) comprises an inverter closing button (35) on the remote control panel, an inverter emergency stop button (45) on the remote control panel, a remote control transmitter one-touch cover lifting button (37), a remote control transmitter one-touch cover lowering button (38), a remote control transmitter cover lifting button (39), a remote control transmitter cover lowering button (40), a remote control transmitter arm extension button (41), a remote control transmitter arm retraction button (42) and a remote control panel selection switch (46), wherein the remote control panel selection switch (46) is a two-speed conversion switch; the input unit (18) further comprises a control cabinet selection switch (ZA), wherein the control cabinet selection switch (ZA ) is a three-gear conversion switch, wherein the contacts of the first gear are respectively connected to a one-key cover-lifting button (SB1) of a control cabinet and a one-key cover-dropping button (SB2) of a control cabinet, the contacts of the second gear are respectively connected to a one-key cover-lifting unit (26), a one-key cover-dropping unit (27), a cover-lifting unit (28), a cover-dropping unit (29), an arm-extending unit (30) and an arm-retracting unit (31), and the contacts of the third gear are respectively connected to a control cabinet cover-lifting jog button (SB3), a control cabinet cover-dropping jog button (SB4), a control cabinet arm-extending jog button (SB5) and a control cabinet arm-retracting jog button (SB6); The remote control transmitter (60) is also provided with a remote control transmitter power on indicator light (34), a ready indicator light (43) and a remote control transmitter inverter on indicator light (50); the remote control transmitter one-touch cover lift button (37), the remote control transmitter one-touch cover drop button (38), the remote control transmitter cover lift button (39), the remote control transmitter cover drop button (40), the remote control transmitter arm extension button (41) and the remote control transmitter arm retraction button (42) are all buttons with indicator light functions; the receiver unit (16) includes a receiver unit DA input / output module (55), and the moving contacts of the DC contactor (ZM), the inverter operation relay (KA1), the one-touch automatic cover lift relay (KA2) and the one-touch automatic cover drop relay (KA3) are respectively connected to the receiver unit DA input / output module (55) through lines; The control cabinet is provided with a control cabinet inverter reset button (FW), and the control cabinet inverter reset button (FW) is connected to the input end of the inverter (14); the receiver unit (16) is provided with an inverter reset unit (32), and the inverter reset unit (32) is connected to the input end of the inverter (14) through a line; the inverter (14) is provided with an inverter fault unit (57), and the inverter fault unit (57) is connected to the input end of the receiver unit DA input / output module (55) through a line; the remote control transmitter (60) is provided with a remote control transmitter inverter reset button (36), a remote control transmitter inverter reset indicator light (51) and an inverter fault indicator light (44); The remote control transmitter (60) is provided with a display screen (53); and a power collection module (54) is connected between the DC battery pack (7) and the input end of the receiver unit DA input / output module (55).

2. The electric control system for a hybrid train with a self-contained power supply and a cover according to claim 1, characterized in that: The main contacts of the DC contactor (ZM) are connected to the circuit between the DC battery pack (7) and the inverter (8); the DC contactor starting unit (10) comprises a starting control branch (25) connected to the positive and negative electrodes of the voltage-stabilized power supply module (9); a control cabinet inverter starting button (SS), a control cabinet inverter stopping button (SB) and a coil of the DC contactor (ZM) are arranged on the starting control branch (25); and the moving contacts of the DC contactor (ZM) are connected in parallel to the two ends of the control cabinet inverter starting button (SS).

3. The electric control system for a hybrid train with a self-contained power supply and cover according to claim 2 is characterized in that: It also includes a charger (20), an external charging power source (22) and an indicator light unit connected to the switch power module (12); the output end of the charger (20) is connected to the DC battery pack (7), and the external charging power source (22) is connected to the input end of the charger (20) through a charging plug (21); the indicator light unit includes first, second, third, fourth, fifth, sixth, seventh, eighth, ninth and tenth indicator light branches (61, 62, 63, 64, 65, 66, 67, 68, 69 and 70); the control cabinet is provided with an inverter operation indicator light (LD1), a relief valve operation indicator light (LD8) and an AC contactor operation indicator light (LD10), The control cabinet one-touch cover lifting button (SB1), the control cabinet one-touch cover dropping button (SB2), the control cabinet cover lifting jog button (SB3), the control cabinet cover dropping jog button (SB4), the control cabinet arm extension jog button (SB5), the control cabinet arm retracting jog button (SB6), and the inverter start button (SS) are respectively provided with a one-touch cover lifting indicator light (LD2), a one-touch cover dropping indicator light (LD3), a cover lifting jog indicator light (LD4), a cover dropping jog indicator light (LD5), an arm extension jog indicator light (LD6), an arm retracting jog indicator light (LD7), and an inverter operation indicator light (LD9); the first indicator light branch (61) is connected to an inverter operation relay ( The first indicator light branch (64) is connected to the normally closed contact of the cover lifting relay (KA4) and the one-key cover lifting indicator light (LD4); the second indicator light branch (62) is connected to the normally closed contact of the one-key automatic cover lifting relay (KA2) and the one-key cover lifting indicator light (LD2); the third indicator light branch (63) is connected to the normally closed contact of the one-key automatic cover dropping relay (KA3) and the one-key cover dropping indicator light (LD3); the fourth indicator light branch (64) is connected to the normally closed contact of the cover lifting relay (KA4) and the one-key cover lifting indicator light (LD4); the fifth indicator light branch (65) is connected to the normally closed contact of the cover dropping relay (KA5) and the one-key cover dropping indicator light (LD5); the sixth indicator light branch (66) is connected to the normally closed contact of the cover dropping relay (KA5) and the one-key cover dropping indicator light (LD5); The first indicator light branch (66) is connected to the normally closed contact of the arm extension relay (KA6) and the arm extension inching indicator light (LD6); the seventh indicator light branch (67) is connected to the normally closed contact of the arm retracting relay (KA7) and the arm retracting inching indicator light (LD7); the eighth indicator light branch (68) is connected to the normally closed contact of the overflow valve relay (KA8) and the overflow valve operation indicator light (LD8); the ninth indicator light branch (69) is connected to the normally closed contact of the DC contactor (ZM) and the inverter operation indicator light (LD9); and the tenth indicator light branch (70) is connected to the normally closed contact of the AC contactor (KM) and the AC contactor operation indicator light (LD10).

4. The electric control system for a hybrid train with a self-contained power supply and cover according to claim 3 is characterized in that: The remote control transmitter (60) is provided with a dual-frequency selection confirmation / cancellation button (47), a lock / unlock button (48), a dual-frequency switching button (49), a lock / unlock indicator light (58) and a frequency band selection indicator light (59).

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