A mechanical intelligent capping DCDC electronic control system and control method for a hybrid railcar

Abstract

The invention discloses a mechanical intelligent capping DCDC electric control system for a mixed iron vehicle. The system has a simple and reasonable design. A DC / DC module is used to provide a high-voltage DC power supply for a frequency converter. A wireless AP terminal is used to realize remote or local HMI control of a frequency conversion PLC control system. Mechanical transmission drive mechanisms such as a worm gear and a lead screw are used to quickly realize one-key automatic capping and removal of a capping actuator and jog the actions of each sub-part. The on-board touch screen and a host computer can provide real-time feedback of the current working state, the health status of each on-board device and other information, thereby providing a visual safe operation guarantee for the capping electrical control system and operators, and the control is safe and reliable. At the same time, each unit of the control system adopts a modular installation method, which solves the problem of rapid removal and various fault processing of the capping device and the electric control system, and greatly saves the production and maintenance costs of the iron can flipping.

Description

Technical Field

[0001] The invention belongs to the technical field of electric control of mixed-rail vehicles, and relates to a mechanical intelligent capping DCDC electric control system and a control method for mixed-rail vehicles. Background Art

[0002] As an indispensable molten iron transportation and storage equipment in the modern metallurgical industry, the mixing car plays an important role in metallurgical enterprises. The mixing car includes an active end and a driven end, and a tank body for storing and transporting molten iron is movably arranged between the active and slave ends. The tank mouth is opened at the center of the top of the tank body. In order to avoid air pollution caused by smoke and dust emitted by the molten iron in the tank body, and excessive loss of molten iron temperature due to the open tank mouth, the mixing car is usually equipped with an insulation cover device.

[0003] At present, in the existing insulation capping electronic control systems for the tank mouths of domestic mixed-iron vehicles, the on-board power supply technology usually adopted is the direct power supply of high-voltage battery packs to drive the DC load mode or the low-voltage battery packs to drive the AC load mode after the inverter boost device. In actual application, these two power supply modes generally have the problems of large on-board power supply devices and complex control systems, which are not suitable for the limited area maintenance or installation operations of mixed-iron vehicles. In addition, during the system action cycle, the system hardware response time is long, and the long action cycle of the capping mechanism causes the battery pack to consume power too quickly, which cannot meet the timeliness and instantaneousness requirements of iron receiving and tank turning production. In addition, the control method adopted is the panel button operation of the main body electric control cabinet or the near-ground handheld remote control operation mode, which drives the mechanical action mechanism to complete on-site capping operations such as iron receiving and tank turning. It cannot realize the remote centralized control operation mode and the real-time tracking of the operating status of the on-board equipment, and there are potential safety hazards for on-site operators and on-board equipment. Summary of the invention

[0004] In view of the technical defects existing in the background technology, the present invention provides a DCDC electronic control system and control method for mechanical intelligent capping of a hybrid rail vehicle, and the technical solution to the technical problem is as follows:

[0005] The present invention discloses a mechanical intelligent capping DCDC electric control system for a mixed-iron vehicle. The mixed-iron vehicle comprises an active end, a driven end and a tank body arranged therebetween and having a tank mouth, a tank cover being movably arranged at the tank mouth, the active end comprising a dust cover, a capping device being arranged on the dust cover, and a position detection unit being arranged at the capping device; the system also comprises an electrical control cabinet and a vehicle-mounted operating box, a battery pack, a PLC, a DC / DC module, a telescopic frequency converter and a lifting and lowering frequency converter being installed in the electrical control cabinet; the capping device comprises a lifting and lowering motor, a lifting and lowering arm worm gear mechanism being arranged at the output end of the lifting and lowering motor, a telescopic arm lead screw mechanism being arranged at the top of the lifting and lowering arm worm gear mechanism, and the rear end and the front end of the telescopic arm lead screw mechanism being respectively connected to the telescopic motor and the tank cover; one output end of the battery pack is connected to the input end of the DC / DC module, and the other output end is used as a To control the power supply unit, the output end of the DC / DC module is respectively connected to the telescopic frequency converter and the lifting and lowering frequency converter, and the telescopic frequency converter and the lifting and lowering frequency converter are respectively connected to the telescopic motor and the lifting and lowering motor; the PLC input end and output end are respectively provided with a PLC input unit and a PLC output unit, the PLC input unit is respectively connected to the vehicle-mounted operation box, the battery pack, the DC / DC module, the position detection unit, the telescopic frequency converter and the lifting and lowering frequency converter, the PLC output unit is respectively connected to a protection circuit unit, a telescopic drive circuit unit and a lifting and lowering drive circuit unit, the protection circuit unit, the telescopic drive circuit unit and the lifting and lowering drive circuit unit are respectively connected to the input ends of the DC / DC module, the telescopic frequency converter and the lifting and lowering frequency converter; the PLC, the PLC input unit and the PLC output unit are respectively connected to the control power supply unit.

[0006] Furthermore, the position detection unit includes a retracted arm in-position proximity sensor, a retracted arm deceleration proximity sensor, an extended arm in-position proximity sensor and an extended arm deceleration proximity sensor arranged along the telescopic arm screw mechanism, and a dropped arm proximity sensor and a raised arm proximity sensor arranged along the lifting and lowering arm worm gear mechanism. The telescopic arm screw mechanism is respectively provided with a telescopic sensing head and a lifting and lowering sensing head. The retracted arm in-position proximity sensor, the retracted arm deceleration proximity sensor, the extended arm in-position proximity sensor, the extended arm deceleration proximity sensor, the dropped arm proximity sensor and the raised arm proximity sensor are all connected to the PLC input unit of the PLC.

[0007] Furthermore, the protection circuit unit includes a DC / DC module working relay, the coil of the DC / DC module working relay is connected to the PLC output unit, and its normally closed contact is connected to the DC / DC module input end; the telescopic drive circuit unit includes a first relay, a second relay and a third relay, the coils of the first relay, the second relay and the third relay are respectively connected to the PLC output unit, and the normally closed contacts of the first relay, the second relay and the third relay are respectively connected to the input end of the telescopic frequency converter; the lifting and lowering drive circuit unit includes a cover lifting relay and a cover lowering relay, the coils of the cover lifting relay and the cover lowering relay are respectively connected to the PLC output unit, and the normally closed contacts of the cover lifting relay and the cover lowering relay are respectively connected to the input end of the lifting and lowering frequency converter; the telescopic motor and the lifting and lowering motor are provided with a motor brake device, and the motor brake device is connected to the PLC output unit through an electromagnetic brake output unit.

[0008] Furthermore, the electromagnetic brake output unit includes a telescopic motor brake contactor KMBX and a lifting and lowering motor brake contactor KMBY, the motor brake device includes a telescopic motor brake and a lifting and lowering motor brake, the coils of the telescopic motor brake contactor KMBX and the lifting and lowering motor brake contactor KMBY are connected to the PLC output unit, and the moving contacts of the telescopic motor brake contactor KMBX and the lifting and lowering motor brake contactor KMBY are respectively connected between the control power supply unit and the telescopic motor brake and the lifting and lowering motor brake.

[0009] Furthermore, the protection circuit unit is connected to a heat dissipation driving circuit unit, the heat dissipation driving circuit unit includes a plurality of fans, and the fans are connected to the normally closed contacts of the working relay of the DC / DC module and the control power supply unit.

[0010] Furthermore, the panel of the vehicle-mounted operating box is provided with a one-touch cover lift button, a one-touch cover drop button and an emergency stop button with their own indicator lights, and the two ends of the one-touch cover lift button, the one-touch cover drop button and the emergency stop button are respectively connected between the output end of the control power supply unit and the PLC input unit.

[0011] Furthermore, the PLC is connected to a touch screen HMI and / or a wireless AP; when the touch screen HMI is connected to the PLC, the touch screen HMI is connected to a control power supply unit to obtain power; when the PLC is connected to a wireless AP, the wireless AP is connected to the control power supply unit to obtain power, and the wireless AP is communicatively connected to a ground unit.

[0012] Furthermore, it also includes a power supply unit and power connection devices arranged on both sides of the active end, the battery pack is connected to a charger, and the charger is connected to the power connection device.

[0013] Furthermore, the onboard operating box is provided with an emergency socket and a charging indicator light, and the emergency socket and the charging indicator light are connected to the charger.

[0014] Furthermore, the position detection unit, the vehicle-mounted operating box, the telescopic motor, the lifting and lowering motor and the electrical control cabinet are respectively connected through modular plug connectors.

[0015] The present invention provides a control method for a mechanical intelligent capping DCDC electronic control system for a mixed-rail vehicle based on the above technical solution, characterized in that it includes:

[0016] Control preparation: the battery pack supplies a DC96V power supply to the input end of the DC / DC module, the DC / DC module starts self-testing, and sends the self-testing result to the PLC through the communication cable. The PLC outputs a signal to the protection circuit unit (32), driving the DC / DC module working relay coil in the protection circuit unit to be energized and attracted, the DC / DC module working relay moving contact at the input end of the DC / DC module is closed, and the DC / DC module output end outputs an AC380V power supply to the PN end of the telescopic inverter and the lifting inverter, and the telescopic inverter and the lifting inverter start to power on; if the DC / DC module self-test fails, the DC / DC module has no output, and feeds back the alarm information to the touch screen HMI, and synchronously sends the alarm information to the ground unit through the wireless AP and displays it;

[0017] "One-key cover lifting" control: input the "one-key cover lifting" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, the PLC executes the cover lifting action program, and the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and attracted, the lifting motor brake contactor KMBY dynamic contact is closed, and the lifting motor brake in the driving motor brake device is opened; at the same time, the PLC output unit outputs a signal to the lifting drive circuit unit, the lifting cover relay coil in the lifting drive circuit unit is energized and attracted, the lifting cover relay dynamic contact in the lifting inverter input terminal is closed, the lifting motor works forward, and the lifting arm worm gear mechanism in the driving cover adding device starts the cover lifting action. After the lifting sensor head at the tail of the cover adding device touches the lifting position proximity sensor, the PLC input unit position detection unit at the PLC input end receives the lifting position signal, P The PLC output unit in the LC outputs a signal to the lifting and lowering drive circuit unit, the lifting cover relay coil in the lifting and lowering drive circuit unit loses power, the lifting cover relay dynamic contact in the lifting and lowering inverter input terminal opens, and the lifting and lowering motor stops working; at the same time, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting and lowering motor brake contactor KMBY coil in the electromagnetic brake output unit loses power, the lifting and lowering motor brake contactor KMBY dynamic contact opens, the lifting and lowering motor brake in the driving motor brake device is locked, and the lifting and lowering arm worm gear mechanism ends the lifting cover action; the PLC starts to execute the telescopic motor opening brake action program, and the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit, the telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit is energized and attracted, the telescopic motor brake contactor KMBX dynamic contact closes, and the telescopic motor brake in the driving motor brake device opens;At the same time, the PLC continues to execute the arm retraction action program, the PLC output unit outputs a signal to the telescopic drive circuit unit, the first relay coil in the telescopic drive circuit unit is energized and energized, the first relay moving contact in the telescopic inverter input terminal is closed, the telescopic inverter outputs a normal frequency, and the telescopic motor connected to the U, V, and W sides of the telescopic inverter output terminals rotates forward, driving the telescopic arm screw mechanism in the covering device to start the arm retraction action, and after the telescopic induction head at the head of the covering device touches the arm retraction deceleration proximity sensor, the arm retraction deceleration signal in the position detection unit is sent to the PLC input unit, the PLC executes the arm retraction deceleration action program, the PLC output unit outputs a signal to the telescopic drive circuit unit, the third relay coil in the telescopic drive circuit unit is energized and energized, the third relay moving contact in the telescopic inverter input terminal is closed, the telescopic inverter outputs a low frequency, and the telescopic motor connected to the telescopic inverter The telescopic motor on the U, V, and W sides of the output terminal of the device rotates forward at a low speed, driving the telescopic arm lead screw mechanism in the capping device to continue the arm retraction action. After the telescopic induction head at the head of the capping device touches the arm retraction proximity sensor, the arm retraction signal in the position detection unit is sent to the PLC input unit in the PLC, and the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit. The output end telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit loses power, the telescopic motor brake contactor KMBX dynamic contact opens, and the telescopic motor brake in the motor brake device is locked; at the same time, the PLC output unit outputs a signal to the first relay and the third relay coil in the telescopic drive circuit unit to lose power, the first relay and the third relay dynamic contact in the telescopic inverter input terminal are disconnected, the telescopic inverter stops working, the telescopic motor stops rotating forward, and the one-button cover lifting action ends;

[0018] "One-key cover drop" control: input the "one-key cover drop" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, and the PLC starts to execute the telescopic motor opening brake action program. The PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit. The telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit is energized and attracted, and the telescopic motor brake contactor KMBX moving contact closes, and the telescopic motor brake in the drive motor brake device opens; at the same time, the PLC continues to execute the arm extension action program, and the PLC output unit outputs a signal to the telescopic drive circuit unit. The second relay coil is energized and energized, and the second relay moving contact in the telescopic inverter input terminal is closed, and the telescopic inverter outputs a normal frequency. The telescopic motor connected to the U, V, and W sides of the telescopic inverter output terminals reverses to drive the telescopic arm lead screw mechanism in the capping device to start the arm extension action. After the telescopic induction head at the head of the capping device touches the arm extension deceleration proximity sensor, the arm retraction deceleration signal in the position detection unit is sent to the PLC input unit, and the PLC executes the arm extension deceleration action program. The PLC output unit outputs a signal to the telescopic drive circuit unit, and the third relay coil in the telescopic drive circuit unit is energized and energized, and the telescopic inverter input terminal The third relay's normally closed contact is closed, the telescopic inverter outputs a low frequency, and the telescopic motor connected to the U, V, and W sides of the telescopic inverter output terminals reverses at a low speed, driving the telescopic arm lead screw mechanism in the capping device to continue the arm extension action. After the telescopic induction head at the head of the capping device touches the arm extension proximity sensor, the arm extension signal in the position detection unit is sent to the PLC input unit in the PLC, and the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit. The output end of the electromagnetic brake output unit The telescopic motor brake contactor KMBX coil loses power, the telescopic motor brake contactor KMBX normally closed contact opens, and the motor brake The telescopic motor brake in the device is locked; at the same time, the PLC output unit outputs a signal to the second relay and the third relay coil in the telescopic drive circuit unit, and the power is lost, the second relay and the third relay in the telescopic inverter input terminal are disconnected, the telescopic inverter stops working, and the telescopic motor stops reversing; the PLC continues to execute the cover drop action program, and the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and attracted, the lifting motor brake contactor KMBY dynamic contact is closed, and the lifting motor brake in the driving motor brake device is opened;At the same time, the PLC output unit outputs a signal to the lifting and falling drive circuit unit, the cover-dropping relay coil in the lifting and falling drive circuit unit is energized and energized, the cover-dropping relay moving contact in the lifting and falling inverter input terminal is closed, the lifting and falling motor reverses to drive the lifting and falling arm worm gear mechanism in the capping device to start the cover-dropping action, and after the lifting and falling sensor head at the tail of the capping device touches the landing proximity sensor, the PLC input unit position detection unit at the PLC input end receives the landing signal, and the PLC output unit in the PLC outputs a signal to the lifting and falling drive circuit unit , the cover-dropping relay coil in the lifting and dropping drive circuit unit loses power, the cover-dropping relay dynamic contact in the lifting and dropping inverter input terminal opens, and the lifting and dropping motor stops working; at the same time, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting and dropping motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and de-energized, the lifting and dropping motor brake contactor KMBY dynamic contact opens, the lifting and dropping motor brake in the driving motor brake device is locked, and the lifting and dropping arm worm gear mechanism ends the cover-dropping action, and the one-button cover-dropping action ends;

[0019] "Lift" inching control: send the "lift" start signal to PLC through the onboard operation box, touch screen HMI or ground unit, PLC executes the cover lifting action program, and the PLC output unit in PLC outputs a signal to the electromagnetic brake output unit, the lifting motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and attracted, the lifting motor brake contactor KMBY moving contact is closed, and the lifting motor brake in the driving motor brake device is opened; at the same time, the PLC output unit outputs a signal to the lifting drive circuit unit, and the lifting drive circuit unit is turned on. The cover lifting relay coil in the driving circuit unit is energized and energized, the cover lifting relay dynamic contact in the lifting and lowering inverter input terminal is closed, the lifting and lowering motor works forward, and the lifting and lowering arm worm gear mechanism in the driving cover adding device starts the cover lifting action; when the onboard operation box, touch screen HMI or ground unit transmits the "lift" stop signal to the PLC, the PLC output unit in the PLC outputs a signal to the lifting and lowering drive circuit unit, the cover lifting relay coil in the lifting and lowering drive circuit unit loses power, the cover lifting relay dynamic contact in the lifting and lowering inverter input terminal opens, and the lifting and lowering motor stops working. At the same time, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting motor brake contactor KMBY coil in the electromagnetic brake output unit loses power, the lifting motor brake contactor KMBY moving contact opens, the lifting motor brake in the driving motor brake device is locked, and the lifting arm worm gear mechanism ends the cover lifting action; or when the lifting and falling sensor head at the tail of the capping device touches the lifting-in-place proximity sensor, the PLC input unit position detection unit at the PLC input end receives the lifting-in-place signal, and the PLC output unit in the PLC The element outputs a signal to the lifting and lowering drive circuit unit, the lifting cover relay coil in the lifting and lowering drive circuit unit loses power, the lifting cover relay dynamic contact in the lifting and lowering inverter input terminal opens, and the lifting and lowering motor stops working; at the same time, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting and lowering motor brake contactor KMBY coil in the electromagnetic brake output unit loses power, the lifting and lowering motor brake contactor KMBY dynamic contact opens, the lifting and lowering motor brake in the driving motor brake device is locked, and the lifting and lowering arm worm gear mechanism ends the lifting action;

[0020] "Retract" jog control: send the "retract" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, the PLC starts to execute the telescopic motor opening brake action program, the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit, the telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit is energized and attracted, the telescopic motor brake contactor KMBX dynamic contact is closed, and the telescopic motor brake in the drive motor brake device is opened; at the same time, the PLC continues to execute the arm retracting action program, the PLC output unit outputs a signal to the telescopic drive circuit unit, the first relay and the third relay coils in the telescopic drive circuit unit are energized and attracted, the first relay and the third relay dynamic contact in the telescopic inverter input terminal are closed, the telescopic inverter outputs a low frequency, and the telescopic motor connected to the U, V, and W sides of the telescopic inverter output terminals rotates forward at a low speed, driving the capping device. The telescopic arm lead screw mechanism starts to retract the arm. After the telescopic induction head at the head of the capping device touches the retracted arm proximity sensor, the retracted arm in place signal in the position detection unit is sent to the PLC input unit in the PLC. The PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit. The output end telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit loses power, the telescopic motor brake contactor KMBX moving contact opens, and the telescopic motor brake in the motor brake device is locked. At the same time, the PLC output unit outputs a signal to the first relay and the third relay coils in the telescopic drive circuit unit to lose power, the first relay and the third relay moving contact in the telescopic inverter input terminal are disconnected, the telescopic inverter stops working, and the telescopic motor stops rotating forward. If the onboard operation box, touch screen HMI or ground unit sends a "retract" stop signal to the PLC, the PLC controls the capping device to immediately stop the retracting action.

[0021] "Extend" inching control: send the "extend" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, the PLC starts to execute the telescopic motor opening brake action program, the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit, the telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit is energized and attracted, the telescopic motor brake contactor KMBX dynamic contact is closed, and the telescopic motor brake in the drive motor brake device is opened; at the same time, the PLC continues to execute the arm extension action program, the PLC output unit outputs a signal to the telescopic drive circuit unit, the second relay and the third relay coils in the telescopic drive circuit unit are energized and attracted, the second relay and the third relay dynamic contact in the telescopic inverter input terminal are closed, the telescopic inverter outputs a low frequency, and the telescopic motor connected to the U, V, W side of the telescopic inverter output terminal reverses and works at a low speed, driving the telescopic motor in the capping device. The arm screw mechanism continues to extend the arm, and after the telescopic induction head device at the head of the capping device touches the arm-in-place proximity sensor, the arm-in-place signal in the position detection unit is sent to the PLC input unit in the PLC, and the PLC outputs a signal to the electromagnetic brake output unit through the PLC output unit, and the output end telescopic motor brake contactor KMBX coil in the electromagnetic brake output unit loses power, the telescopic motor brake contactor KMBX dynamic contact opens, and the telescopic motor brake in the motor brake device is locked; at the same time, the PLC output unit outputs a signal to the second relay and the third relay coil in the telescopic drive circuit unit to lose power, the second relay and the third relay dynamic contact in the telescopic inverter input terminal are disconnected, the telescopic inverter stops working, and the telescopic motor stops reversing; if the onboard operation box, touch screen HMI or ground unit sends the "extend" stop signal to the PLC, the PLC controls the capping device to immediately stop the arm extension action;

[0022] "Drop" inching control: send the "drop" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, the PLC executes the cover drop action program, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, the lifting and dropping motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and attracted, the lifting and dropping motor brake contactor KMBY dynamic contact is closed, and the lifting and dropping motor brake in the driving motor brake device is opened; at the same time, the PLC output unit outputs a signal to the lifting and dropping drive circuit unit, the cover drop relay coil in the lifting and dropping drive circuit unit is energized and attracted, the cover drop relay dynamic contact in the lifting and dropping inverter input terminal is closed, the lifting and dropping motor reverses to work, and the lifting and dropping arm worm gear mechanism in the capping device is driven to start the cover drop action, and the lifting and dropping sensor head at the tail of the capping device touches the proximity sensor when it falls into place. After the sensor, the position detection unit of the PLC input unit at the PLC input end receives the landing signal, and the PLC output unit in the PLC outputs a signal to the lifting and lowering drive circuit unit, and the cover-dropping relay coil in the lifting and lowering drive circuit unit loses power, and the lifting and lowering cover relay in the input terminal of the lifting and lowering inverter opens, and the lifting and lowering motor stops working; at the same time, the PLC output unit in the PLC outputs a signal to the electromagnetic brake output unit, and the lifting and lowering motor brake contactor KMBY coil in the electromagnetic brake output unit is energized and de-energized, and the lifting and lowering motor brake contactor KMBY opens, and the lifting and lowering motor brake in the driving motor brake device is locked, and the lifting and lowering arm worm gear mechanism ends the cover-dropping action; if the onboard operation box, touch screen HMI or ground unit sends the "dropping" stop signal to the PLC, the PLC controls the capping device to immediately stop the cover-dropping action;

[0023] "Emergency stop" control: Input the "Emergency stop" start signal to the PLC through the onboard operation box, touch screen HMI or ground unit, the PLC executes the program, and the PLC outputs a signal to de-energize the DC / DC module working relay coil, disconnect the DC / DC module working relay moving contact, and the system stops working.

[0024] Compared with the existing technology, the mechanical intelligent capping DCDC electronic control system for mixed iron vehicles described in the present invention has a simple and reasonable design. It adopts a DC / DC module to provide a high-voltage DC power supply for the inverter, uses a wireless AP terminal to realize remote or on-site HMI control of the frequency conversion-PLC control system, and adopts mechanical transmission drive mechanisms such as a worm gear and a lead screw to quickly realize one-key automatic capping and removal of the capping actuator and the inching of each sub-part. The on-board touch screen and the host computer provide real-time feedback on the current working status, the health status of each on-board equipment and other information, providing a visual safe operation guarantee for the capping electrical control system and the operator, and the control is safe and reliable. At the same time, each unit of the control system adopts a modular installation method, which solves the problem of rapid relocation and various fault handling of the capping device and the electronic control system, and greatly saves the production and maintenance costs of the iron can flipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the present invention being arranged on a mixed-rail vehicle;

[0026] Figure 2 It is an enlarged schematic diagram of the capping device in the present invention;

[0027] Figure 3 This is a schematic diagram of the control process of the electric control system of the present invention;

[0028] Figure 4 This is a schematic diagram of the main interface of the touch screen HMI in the present invention;

[0029] Figure 5 It is a schematic diagram of the touch screen HMI action state and the inching interface in the present invention;

[0030] Figure 6 This is a schematic diagram of the onboard operation box panel of the present invention;

[0031] Figure 7 This is a control principle diagram of the DC / DC system in the present invention;

[0032] Figure 8 It is a modular schematic diagram of the electric control system of the present invention;

[0033] In the figure: 1. Covering device; 2. Electrical control cabinet; 3. Vehicle-mounted operating box; 4. Power supply unit; 5. Power connection device; 6. Telescopic motor; 7. Lifting motor; 8. Retracting arm in place proximity sensor; 9. Retracting arm deceleration proximity sensor; 10. Extending arm in place proximity sensor; 11. Extending arm deceleration proximity sensor; 12. Dropping in place proximity sensor; 13. Lifting in place proximity sensor; 14. Telescopic arm lead screw mechanism; 15. Lifting arm worm gear mechanism; 16. Lifting induction head; 17. Telescopic induction head; 18. Charger; 19. Battery pack; 20. DC / DC module; 21. Telescopic inverter; 22. Lifting inverter; 23. Control power supply unit; 24. PLC; 25. PLC input unit; 26. PLC output unit; 27. Wireless AP; 28. Touch screen HMI; 29. ​​Position detection unit; 30. Telescopic drive circuit unit; 31. Lifting drive circuit unit; 32. Protection circuit unit; 33. Heat dissipation drive circuit unit; 34. Emergency socket; 35. Modular plug connector; 36. One-touch cover lift button; 37. One-touch cover drop button; 38. Emergency stop button; 39. Charging indicator light; 41. Electromagnetic brake output unit; 44. Fan; 45. Telescopic motor brake contactor KMBX; 46. Lifting and lowering motor brake contactor KMBY; 47. Motor brake device; 48. Active end; 49. Driven end; 50. Tank body; 51. Tank mouth; 52. Tank cover; 53. Ground unit; 54. Telescopic motor brake; 55. Lifting and lowering motor brake. DETAILED DESCRIPTION

[0034] 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. Example

[0035] like Figures 1 to 8As shown, the present invention is a mechanical intelligent capping DCDC electronic control system for a mixed-iron vehicle, the mixed-iron vehicle comprises an active end 48, a driven end 49 and a tank body 50 arranged therebetween and having a tank opening 51, a tank cover 52 is movably arranged at the tank opening 51, the active end 48 comprises a dust cover, a capping device 1 is arranged on the dust cover, a position detection unit 29 is arranged at the capping device 1, and is used to detect the position of the capping device 1 during operation; the capping device 1 comprises a lifting motor 7, a lifting arm worm gear mechanism 15 is arranged at the output end of the lifting motor 7, a telescopic arm screw mechanism 14 is arranged at the top of the lifting arm worm gear mechanism 15, and the rear end and front end of the telescopic arm screw mechanism 14 are respectively The telescopic arm screw mechanism 14 can be moved up and down by the action of the lifting and lowering motor 7 and the lifting and lowering arm worm gear mechanism 15, so that the tank cover 52 can be moved up and down to realize the lifting and lowering operation. The tank cover 52 can be moved forward and backward by the telescopic motor 6 and the telescopic arm screw mechanism 14 to realize the arm extension and retraction operation. The electric control system also includes an electric control cabinet 2 and a vehicle-mounted operating box 3. The electric control cabinet 2 is equipped with a battery pack 19, a PLC 24, a DC / DC module 20, a telescopic inverter 21 and a lifting and lowering inverter 22; the battery pack 19 adopts a capacity of 30 KWh lithium iron phosphate battery, with DC96V / DC24V dual output, the DC96V output end is connected to the DC / DC module 20 input end, the other DC24V output end is used as the control power supply unit 23, providing power for each control unit; the output end of the DC / DC module 20 is respectively connected to the telescopic inverter 21 and the lifting inverter 22, the telescopic inverter 21 and the lifting inverter 22 are respectively connected to the telescopic motor 6 and the lifting motor 7; the PLC24 input end and output end are respectively provided with a PLC input unit 25 and a PLC output unit 26, the PLC input unit 25 is respectively connected to the vehicle operation box 3, the battery pack 19, and the DC / DC The module 20, the position detection unit 29, the telescopic frequency converter 21 and the lifting and lowering frequency converter 22 are connected, and the PLC output unit 26 is respectively connected with the protection circuit unit 32, the telescopic driving circuit unit 30 and the lifting and lowering driving circuit unit 31, and the protection circuit unit 32, the telescopic driving circuit unit 30 and the lifting and lowering driving circuit unit 31 are respectively connected to the input ends of the DC / DC module 20, the telescopic frequency converter 21 and the lifting and lowering frequency converter 22, for protecting and driving the DC / DC module 20, the telescopic frequency converter 21 and the lifting and lowering frequency converter 22 to work normally; the PLC24, the PLC input unit 25 and the PLC output unit 26 are respectively connected to the control power supply unit 23.The battery pack 19, DC / DC module 20, telescopic inverter 21 and lifting inverter 22 all include RS-485 communication interfaces and are respectively connected to the PLC input unit 25 through communication cables, which are used to read, upload and monitor the information of the battery pack, DC / DC module and two inverters; the DC / DC module itself has low power consumption, meets the long standby requirements, and the output power is not less than 5.5KW. The PLC24 can adopt Siemens S7-200Smart series PLC, including AI / AO, wireless AP module, etc. for monitoring the temperature, speed, input / output voltage, current information, action position and other information of the vehicle-mounted equipment, as well as master-slave communication to realize remote control, information uploading, etc. The telescopic inverter 21 and lifting inverter 22 both adopt ABB series inverters.

[0036] In this embodiment, the vehicle-mounted operation box 3 is used to input control instructions to the PLC24 for on-site control. Its panel is provided with a one-touch cover lift button 36, a one-touch cover drop button 37 and an emergency stop button 38 with built-in indicator lights. The two ends of the one-touch cover lift button 36, the one-touch cover drop button 37 and the emergency stop button 38 are respectively connected between the output end of the control power supply unit 23 and the PLC input unit 25. The vehicle-mounted operation box 3 can be provided one on the left and right sides of the active end respectively for easy control.

[0037] In this embodiment, the position detection unit 29 includes a retracted arm in-position proximity sensor 8, a retracted arm deceleration proximity sensor 9, an extended arm in-position proximity sensor 10 and an extended arm deceleration proximity sensor 11 arranged along the telescopic arm screw mechanism 14, and a dropped arm proximity sensor 12 and a raised arm proximity sensor 13 arranged along the lifting and lowering arm worm gear mechanism 15. The front and rear sides of the telescopic arm screw mechanism 14 are respectively provided with a telescopic sensing head 17 and a lifting and lowering sensing head 16. The retracted arm in-position proximity sensor 8, the retracted arm deceleration proximity sensor 9, the extended arm in-position proximity sensor 10, the extended arm deceleration proximity sensor 11, the dropped arm proximity sensor 12 and the raised arm proximity sensor 13 are PNP three-wire high-temperature resistant proximity sensors, which are all connected to the PLC input unit 25 of the PLC24 to assist the PLC24 in achieving precise control positioning and motion deceleration.

[0038] The protection circuit unit 32 includes a DC / DC module working relay K1, the coil of the DC / DC module working relay K1 is connected to the PLC output unit 26, and its make contact is connected to the input end of the DC / DC module 20; the telescopic drive circuit unit 30 includes a first relay KA1, a second relay KA2 and a third relay KA3, the coils of the first relay KA1, the second relay KA2 and the third relay KA3 are respectively connected to the PLC output unit 26, and the make contacts of the first relay KA1, the second relay KA2 and the third relay KA3 are respectively connected to the PLC output unit 26. They are respectively connected to the input ends of the telescopic frequency converter 21; the lifting and lowering drive circuit unit 31 includes a cover lifting relay KA11 and a cover dropping relay KA12, the coils of the cover lifting relay KA11 and the cover dropping relay KA12 are respectively connected to the PLC output unit 26, and the moving contacts of the cover lifting relay KA11 and the cover dropping relay KA12 are respectively connected to the input ends of the lifting and lowering frequency converter 22; the telescopic motor 6 and the lifting and lowering motor 7 are provided with a motor brake device 47, and the motor brake device 47 is connected to the PLC output unit 26 through the electromagnetic brake output unit 41.

[0039] In this embodiment, the electromagnetic brake output unit 41 includes a telescopic motor brake contactor KMBX45 and a lifting motor brake contactor KMBY46, and the motor brake device 47 includes a telescopic motor brake 54 and a lifting motor brake 55. The coils of the telescopic motor brake contactor KMBX45 and the lifting motor brake contactor KMBY46 are connected to the PLC output unit 26, and the moving contacts of the telescopic motor brake contactor KMBX45 and the lifting motor brake contactor KMBY46 are respectively connected between the control power supply unit 23 and the telescopic motor brake 54 and the lifting motor brake 55.

[0040] In order to facilitate the heat dissipation requirements of various components in the electrical control cabinet 2, the protection circuit unit 32 is connected to a heat dissipation drive circuit unit 33, and the heat dissipation drive circuit unit 33 includes a plurality of fans 44, and the fans 44 are connected to the moving contacts of the DC / DC module working relay K1 and the control power supply unit 23.

[0041] In this embodiment, the PLC24 is also connected to a touch screen HMI28, and the touch screen HMI28 communicates with the PLC24 to complete the local operation of adding and removing the cover. The touch screen HMI28 can be installed on the front door of the electrical control cabinet 2, connected to the control power supply unit 23 to obtain power, and connected to the PLC24 through the DP9 / RS-485 communication line to achieve communication. The relevant program for the control of the mixed iron car is set in advance, and various types of information transmitted from various devices, sensors, etc. are received and displayed; Figure 4 and Figure 5The main interface of the touch screen HMI and the schematic diagram of the action status and the inching interface are shown; the touch screen HMI28 screen is provided with "Home", "Maintenance", "I / O Page", "Alarm" and other sub-screen switching buttons; the "Home" is provided with a "Battery Information" box, which can provide real-time feedback on the current, output voltage, remaining power, health and remaining capacity of the battery pack 19, and a "DC / DC Information" box, which can provide real-time feedback on the temperature, input voltage, output voltage and output current of the DC / DC module 20, and a "Frequency Converter Information" box, which can provide real-time feedback on the forward transmission and reverse transmission status of the telescopic inverter in the telescopic inverter 21, the working frequency of the telescopic inverter, and the forward transmission and reverse transmission status of the lift-down inverter in the lift-down inverter 22, the working frequency of the lift-down inverter, and other information. The home page also has a real-time animation screen for adding covers, as well as flashing indications of "lifting cover" and "dropping cover", and constant indications of "completion" and "timeout". The home page is also configured with "one-key cover lifting", "one-key cover dropping", "reset" and "reset" functions. ” and other buttons for local system control; the “Maintenance” page is provided with a “Vehicle-mounted sensor X-axis” information box, which can provide real-time feedback on the action position information of the telescopic arm of the capping device in the capping device 1, including “extended in place”, “retracted in place”, “extended arm deceleration”, and “retracted arm deceleration” constantly lit indications; a “Vehicle-mounted sensor Y-axis” information box is provided, which can provide real-time feedback on the action position information of the capping device lifting and dropping in the capping device 1, including “lifted in place” and “dropped in place” constantly lit indications; there is also a “device operation” information box, which can realize the local automatic control system, and is divided into “jog mode”, “lift”, “drop”, “extend”, and “retract” buttons. In the jog mode, by pressing the four buttons respectively, the mechanism can complete the step-by-step actions of lifting, dropping, extending, and retracting; the alarm page reflects the mechanism action fault record information; the I / O page can check the position status of the emergency stop button, the action status of one-button lifting and one-button dropping, the working status of the proximity sensors such as lifting in place, dropping in place, retracting arm deceleration, retracting in place, extending arm deceleration, and extending in place.

[0042] In this embodiment, the electronic control system can also be controlled by remote control. The PLC24 can also be connected to a wireless AP27, which is connected to the control power supply unit 23 to obtain power. The wireless AP27 is connected to the ground unit 53 for communication. The ground unit 53 is provided with a host computer. By connecting to the wireless AP27 of each mixed-iron car, various information of the corresponding mixed-iron car can be obtained, and corresponding instructions or information can be sent to the mixed-iron car to achieve remote control and monitoring. In addition, multiple mixed-iron cars can be controlled by one ground unit 53, and only communication needs to be established, which reduces the number of operators and ensures the safety of operators.

[0043] In this embodiment, the electric control system further includes a power supply unit 4 and a power connection device 5 provided on both sides of the active end, and a charger 18 is connected to the battery pack 19, and the charger 18 is connected to the power connection device 5 for charging the battery pack. In addition, an emergency socket 34 and a charging indicator light 39 are provided on the onboard operation box 3, and the emergency socket 34 and the charging indicator light 39 are connected to the charger 18 for emergency charging.

[0044] In this embodiment, in order to facilitate the rapid installation and maintenance of the various units of the electric control system, the position detection unit 29, the vehicle-mounted operating box 3, the telescopic motor 6, the lifting motor 7 and the electrical control cabinet 2 are respectively connected through a modular plug connector 35.

[0045] In this embodiment, when operating through the onboard operation box 3, the one-touch cover lifting button 36 is pressed, the indicator light starts to flash, the lifting and lowering frequency converter 22 outputs a normal frequency, the lifting and lowering motor 7 works, and drives the lifting and lowering arm worm gear mechanism 15 in the capping device 1 to start the cover lifting action. After the lifting and lowering sensor head 16 device at the tail of the capping device 1 touches the lifting-in-place proximity sensor 13, the lifting and lowering motor 7 stops working, the telescopic frequency converter 21 outputs a normal frequency, and the telescopic motor 6 works to drive the telescopic arm screw mechanism 14 in the capping device 1 to start the arm retraction action. After the telescopic sensor head 17 device at the head of the capping device 1 touches the retraction arm deceleration proximity sensor 9, the telescopic frequency converter 21 outputs a low frequency, and the speed of the telescopic motor 6 decreases. After touching the retraction arm in-place proximity sensor 8, the telescopic motor 6 stops working, the one-touch cover lifting action ends, and the one-touch cover lifting button 36 indicator light is always on; press one Press the cover-dropping button 37, the indicator light of the cover-lifting button 36 goes out, the indicator light of the cover-dropping button 37 flashes, the telescopic inverter 21 outputs a normal frequency, the telescopic motor 6 works to drive the telescopic arm screw mechanism 14 in the capping device 1 to start the arm extension action, and after the telescopic induction head 17 device at the head of the capping device 1 touches the arm deceleration proximity sensor 11, the telescopic inverter 21 outputs a low frequency, the speed of the telescopic motor 6 decreases, and after touching the arm in-place proximity sensor 10, the telescopic motor 6 stops working, the lifting and dropping inverter 22 outputs a normal frequency, the lifting and dropping motor 7 in the capping device 1 starts working, drives the lifting and dropping arm worm gear mechanism 15 to start the cover-dropping action, and after the lifting and dropping induction head 16 device at the tail of the capping device 1 touches the in-place proximity sensor 12, the lifting and dropping motor 7 stops working, the one-key cover-dropping action is completed, and the indicator light of the cover-dropping button 37 is always on. When the capping device 1 is working, the emergency stop button 38 can be pressed in case of an emergency, and the action will stop immediately; the panel of the vehicle-mounted operation box 3 is also provided with an emergency charging socket 34 and a charging indicator light 39, which are connected to the emergency charging socket 34 in the panel of the vehicle-mounted operation box 3 through the power plug in the AC380V power supply in the ground power supply 4, and the battery pack 19 can be charged in an emergency through the charger 18. When charging, the charging indicator light 39 lights up. In addition, the onboard operation box 3 can also be provided with "jog mode", "lift", "drop", "extend", "retract" buttons, etc., such as those in the touch screen HMI maintenance page, and equipped with corresponding indicator lights, etc., for local jog control. Example

[0046] The present invention is based on a control method for the mechanical intelligent capping DCDC electronic control system for a hybrid vehicle described in Example 1, which is described by the vehicle-mounted operation box 3, the touch screen HMI28 and the ground unit 53 control of the electronic control system. The three methods can be operated separately or in coordination. Each method is now described one by one:

[0047] Control preparation: the battery pack 19 supplies a DC96V power supply to the input end of the DC / DC module 20, and the DC / DC module 20 starts self-checking, and sends the self-checking result to the PLC24 through the communication cable. The PLC24 outputs a signal to the protection circuit unit (32), driving the DC / DC module working relay K1 coil in the protection circuit unit 32 to be energized and attracted, and the DC / DC module working relay K1 at the input end of the DC / DC module 20 is closed. The DC / DC module 20 outputs an AC380V power supply to the PN end of the telescopic inverter 21 and the lifting inverter 22, and the telescopic inverter 21 and the lifting inverter 22 start to power on; if the DC / DC module 20 self-checks an error, the DC / DC module 20 has no output, and feeds back the alarm information to the touch screen HMI28, and synchronously sends the alarm information to the ground unit 53 through the wireless AP27 and displays it;

[0048] On-site operation of vehicle operation box 3:

[0049] "One-key cover lifting" control: Press the one-key cover lifting button 36 on the panel of the onboard operation box 3 to send the "one-key cover lifting" start signal to the input end of PLC24, input the "one-key cover lifting" start signal to PLC24, PLC24 executes the cover lifting action program, and the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, and the coil of the lifting motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and attracted, and the moving contact of the lifting motor brake contactor KMBY46 is closed, driving the lifting motor brake device 47 in the lifting motor. The motor brake 55 opens; at the same time, the PLC output unit 26 outputs a signal to the lifting and lowering drive circuit unit 31, the lifting cover relay KA11 coil in the lifting and lowering drive circuit unit 31 is energized and attracted, the lifting cover relay KA11 moving contact in the input terminal of the lifting and lowering inverter 22 is closed, the lifting and lowering motor 7 works forward, and the lifting and lowering arm worm gear mechanism 15 in the capping device 1 starts the lifting cover action, and after the lifting and lowering sensor head 16 at the tail of the capping device 1 touches the lifting position proximity sensor 13, the PLC24 input terminal PLC input unit 25 position detection unit 29 After receiving the lifting-in-place signal, the PLC output unit 26 in PLC24 outputs a signal to the lifting-down driving circuit unit 31, the coil of the lifting cover relay KA11 in the lifting-down driving circuit unit 31 loses power, the moving contact of the lifting cover relay KA11 in the input terminal of the lifting-down inverter 22 opens, and the lifting-down motor 7 stops working; at the same time, the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, the coil of the lifting-down motor brake contactor KMBY46 in the electromagnetic brake output unit 41 loses power, and the lifting-down motor brake contactor KMBY46 The moving contact opens, the lifting motor brake 55 in the driving motor brake device 47 is locked, and the lifting arm worm gear mechanism 15 ends the cover lifting action; PLC24 starts to execute the telescopic motor 6 opening brake action program, and PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26, and the telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX45 is closed, and the telescopic motor brake 54 in the driving motor brake device 47 is opened;At the same time, PLC24 continues to execute the arm retracting action program, and the PLC output unit 26 outputs a signal to the telescopic drive circuit unit 30. The first relay KA1 coil in the telescopic drive circuit unit 30 is energized and energized, and the first relay KA1 moving contact in the input terminal of the telescopic frequency converter 21 is closed, and the telescopic frequency converter 21 outputs a normal frequency, and the telescopic motor 6 connected to the U, V, and W sides of the output terminals of the telescopic frequency converter 21 rotates forward, driving the telescopic arm screw mechanism 14 in the capping device 1 to start the arm retracting action. After the telescopic induction head 17 at the head of the capping device 1 touches the arm retracting deceleration proximity sensor 9, the arm retracting deceleration signal in the position detection unit 29 is sent to the PLC input unit 25 of the PLC24, and the PLC24 executes the arm retracting deceleration action program. The PLC output unit 26 outputs a signal to the telescopic drive circuit unit 30, and the third relay KA3 coil in the telescopic drive circuit unit 30 is energized and energized, and the third relay KA3 moving contact in the input terminal of the telescopic frequency converter 21 is closed, and the telescopic frequency converter 21 outputs a low frequency, and the telescopic motor 6 connected to ... The telescopic motor 6 on the U, V, W side of the output terminal of the cover 21 rotates forward at a low speed, driving the telescopic arm screw mechanism 14 in the cover device 1 to continue the arm retraction action. After the telescopic induction head 17 at the head of the cover device 1 touches the arm retraction proximity sensor 8, the arm retraction signal in the position detection unit 29 is sent to the PLC input unit 25 in the PLC24, and the PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26. The output end telescopic motor brake contactor KMBX45 coil of the electromagnetic brake output unit 41 loses power, the telescopic motor brake contactor KMBX45 dynamic contact opens, and the telescopic motor brake 54 in the motor brake device 47 is locked; at the same time, the PLC output unit 26 outputs a signal to the first relay KA1 and the third relay KA3 in the telescopic drive circuit unit 30. The coils lose power, the first relay KA1 and the third relay KA3 dynamic contact in the input terminal of the telescopic inverter 21 are disconnected, the telescopic inverter 21 stops working, the telescopic motor 6 stops rotating forward, and the one-key cover lifting action ends;

[0050] "One-key cover drop" control: Press the one-key cover drop button 37 on the panel of the onboard operation box 3 to send the "one-key cover drop" start signal to the input end of PLC24, and PLC24 starts to execute the telescopic motor 6 to open the brake action program. PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26. The telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX45 is closed, and the telescopic motor brake 54 in the drive motor brake device 47 is opened; at the same time, PLC24 continues to execute the arm extension action program, and the PLC output unit 26 The output signal is sent to the telescopic drive circuit unit 30, and the coil of the second relay KA2 in the telescopic drive circuit unit 30 is energized and attracted, and the moving contact of the second relay KA2 in the input terminal of the telescopic frequency converter 21 is closed, and the telescopic frequency converter 21 outputs a normal frequency, and the telescopic motor 6 connected to the U, V, and W sides of the output terminals of the telescopic frequency converter 21 reverses to drive the telescopic arm screw mechanism 14 in the capping device 1 to start the arm extension action. After the telescopic induction head 17 at the head of the capping device 1 touches the arm extension deceleration proximity sensor 11, the arm retraction deceleration signal in the position detection unit 29 is sent to the PLC input unit 25 of the PLC24, and the PLC24 executes the arm extension deceleration action program. The PLC output unit 26 outputs a signal to the telescopic drive circuit unit 30, and the coil of the third relay KA3 in the telescopic drive circuit unit 30 is energized and energized, and the moving contact of the third relay KA3 in the input terminal of the telescopic frequency converter 21 is closed, and the telescopic frequency converter 21 outputs a low frequency, and the telescopic motor 6 connected to the U, V, and W sides of the output terminals of the telescopic frequency converter 21 reverses at a low speed, driving the telescopic arm screw mechanism 14 in the capping device 1 to continue the arm extension action, and after the telescopic induction head 17 at the head of the capping device 1 touches the arm extension position proximity sensor 10, the arm extension position signal in the position detection unit 29 is sent to the PLC input unit 25 in the PLC24, and the PLC24 The signal is output to the electromagnetic brake output unit 41 through the PLC output unit 26, the coil of the telescopic motor brake contactor KMBX45 at the output end of the electromagnetic brake output unit 41 loses power, the moving contact of the telescopic motor brake contactor KMBX45 opens, and the telescopic motor brake 54 in the motor brake device 47 is locked; at the same time, the PLC output unit 26 outputs a signal to the second relay KA2 and the third relay KA3 in the telescopic drive circuit unit 30, the coils lose power, the moving contacts of the second relay KA2 and the third relay KA3 in the input terminal of the telescopic frequency converter 21 are disconnected, the telescopic frequency converter 21 stops working, and the telescopic motor 6 stops reversing;PLC24 continues to execute the cover dropping action program, and the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, and the coil of the lifting and dropping motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and attracted, and the moving contact of the lifting and dropping motor brake contactor KMBY46 is closed, and the lifting and dropping motor brake 55 in the driving motor brake device 47 is opened; at the same time, the PLC output unit 26 outputs a signal to the lifting and dropping drive circuit unit 31, and the coil of the cover dropping relay KA12 in the lifting and dropping drive circuit unit 31 is energized and attracted, and the moving contact of the cover dropping relay KA12 in the input terminal of the lifting and dropping inverter 22 is closed, and the lifting and dropping motor 7 reverses to drive the lifting and dropping arm worm gear mechanism 15 in the capping device 1 to start the cover dropping action, and the lifting and dropping sensor head 16 at the tail of the capping device 1 touches the proximity sensor when it falls into place. After the device 12, the PLC input unit 25 position detection unit 29 at the input end of PLC24 receives the landing signal, and the PLC output unit 26 in PLC24 outputs a signal to the lifting and falling drive circuit unit 31, and the coil of the cover-dropping relay KA12 in the lifting and falling drive circuit unit 31 loses power, and the moving contact of the lifting and falling cover relay KA12 in the input terminal of the lifting and falling inverter 22 opens, and the lifting and falling motor 7 stops working; at the same time, the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, and the coil of the lifting and falling motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and de-energized, and the moving contact of the lifting and falling motor brake contactor KMBY46 opens, and the lifting and falling motor brake 55 in the driving motor brake device 47 is locked, and the lifting and falling arm worm gear mechanism 15 ends the cover-dropping action, and the one-key cover-dropping action ends;

[0051] "Emergency stop" control: Press the emergency stop button 38 on the panel of the vehicle operation box 3 to input the "emergency stop" start signal to PLC24, PLC24 executes the program, and PLC24 outputs a signal to make the DC / DC module working relay K1 coil de-energized, the DC / DC module working relay K1 moving contact is disconnected, and the system stops working.

[0052] The ground unit remotely controls "one-key lid lift" and "one-key lid drop":

[0053] The ground unit 53 establishes communication with PLC24 through the vehicle-mounted wireless AP27, receives relevant information of the controlled mixed-iron car in the ground unit 53, and sends control instructions through the vehicle-mounted wireless AP27 and PLC24 to complete the "one-key cover lifting" or "one-key cover dropping" operation of the mixed-iron car covering device 1 through the vehicle-mounted wireless AP27 and PLC24, and receives in real time the action state and action information of the one-key cover lifting of the electronic control system of the covering device 1 of the present invention; the battery pack 19 power, current, and voltage information; the DC / DC module 20 temperature, output voltage, current, and input voltage information; the PLC24 input / output point status and the telescopic inverter 21; the lifting and lowering inverter 22 operating frequency, current, and alarm information; its remote control method is executed according to the "one-key cover lifting" or "one-key cover dropping" method in the on-site control of the vehicle-mounted operation box 3, and includes a remote self-test process of "control preparation".

[0054] Touch screen HMI control:

[0055] Click "One-key cover lift" or "One-key cover drop" on the touch screen HMI28 homepage, and the control system can complete the corresponding control action. The control method is executed according to the "one-key cover lift" or "one-key cover drop" method in the on-site control of the vehicle-mounted operation box 3, and includes the "control preparation" self-test process. If an emergency occurs, click "Reset" on the touch screen homepage, and the system will stop working immediately; click "Maintenance" on the touch screen homepage to enter the sub-page, and click "Jog mode" in the "Equipment Operation" information box, that is, the control system enters the jog operation mode:

[0056] "Lift" inching control: Touch the "Lift" key with your finger for a long time to send the "Lift" start signal to PLC24, PLC24 executes the cover lifting action program, and the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, and the coil of the lifting motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and attracted, and the moving contact of the lifting motor brake contactor KMBY46 is closed, and the lifting motor brake 55 in the driving motor brake device 47 is opened; at the same time, the PLC output unit 26 outputs a signal to the lifting drive circuit unit 31, and the cover lifting relay in the lifting drive circuit unit 31 is turned on. The KA11 coil is energized and energized, and the moving contact of the cover-lifting relay KA11 in the input terminal of the lifting and lowering inverter 22 is closed, and the lifting and lowering motor 7 works in the forward direction, driving the lifting and lowering arm worm gear mechanism 15 in the cover-adding device 1 to start the cover-lifting action; the finger leaves the "lift" key, and the "lift" stop signal is transmitted to PLC24, and the PLC output unit 26 in PLC24 outputs a signal to the lifting and lowering drive circuit unit 31, and the cover-lifting relay KA11 coil in the lifting and lowering drive circuit unit 31 loses power, and the moving contact of the cover-lifting relay KA11 in the input terminal of the lifting and lowering inverter 22 opens, and the lifting and lowering motor 7 stops working; at the same time, the PLC24 The PLC output unit 26 outputs a signal to the electromagnetic brake output unit 41, the coil of the lifting motor brake contactor KMBY46 in the electromagnetic brake output unit 41 loses power, the moving contact of the lifting motor brake contactor KMBY46 opens, the lifting motor brake 55 in the driving motor brake device 47 is locked, and the lifting arm worm gear mechanism 15 ends the cover lifting action; or when the lifting sensor head 16 at the tail of the capping device 1 touches the lifting-in-place proximity sensor 13, the position detection unit 29 of the PLC input unit 25 at the input end of the PLC24 receives the lifting-in-place signal, and the PLC output unit 26 in the PLC24 outputs a signal To the lifting and lowering driving circuit unit 31, the coil of the lifting cover relay KA11 in the lifting and lowering driving circuit unit 31 loses power, the moving contact of the lifting cover relay KA11 in the input terminal of the lifting and lowering inverter 22 opens, and the lifting and lowering motor 7 stops working; at the same time, the PLC output unit 26 in the PLC24 outputs a signal to the electromagnetic brake output unit 41, the coil of the lifting and lowering motor brake contactor KMBY46 in the electromagnetic brake output unit 41 loses power, the moving contact of the lifting and lowering motor brake contactor KMBY46 opens, the lifting and lowering motor brake 55 in the driving motor brake device 47 is locked, and the lifting and lowering arm worm gear mechanism 15 ends the lifting cover action;

[0057] "Retract" inching control: Touch the "Retract" key with your finger for a long time to send the "Retract" start signal to PLC24, PLC24 starts to execute the telescopic motor 6 opening brake action program, PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26, the telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 is energized and attracted, the telescopic motor brake contactor KMBX45 moving contact is closed, and the telescopic motor brake 54 in the driving motor brake device 47 is opened At the same time, PLC24 continues to execute the arm retracting action program, and the PLC output unit 26 outputs a signal to the telescopic drive circuit unit 30. The first relay KA1 and the third relay KA3 coils in the telescopic drive circuit unit 30 are energized and attracted, and the first relay KA1 and the third relay KA3 moving contacts in the input terminal of the telescopic frequency converter 21 are closed. The telescopic frequency converter 21 outputs a low frequency, and the telescopic motor 6 connected to the U, V, and W sides of the output terminals of the telescopic frequency converter 21 rotates forward at a low speed, driving the telescopic arm wire in the capping device 1. The lever mechanism 14 starts the arm retracting action. After the telescopic induction head 17 at the head of the capping device 1 touches the arm retracting position proximity sensor 8, the arm retracting position signal in the position detection unit 29 is sent to the PLC input unit 25 in the PLC24. The PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26. The output end telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 loses power, the telescopic motor brake contactor KMBX45 moving contact opens, and the telescopic motor brake 54 in the motor brake device 47 is locked; at the same time, the PLC output unit 26 outputs a signal to the first relay KA1 and the third relay KA3 coils in the telescopic drive circuit unit 30 lose power, the first relay KA1 and the third relay KA3 moving contact in the input terminal of the telescopic frequency converter 21 are disconnected, the telescopic frequency converter 21 stops working, and the telescopic motor 6 stops rotating forward; if the finger leaves the "retract" key, the "retract" stop signal is sent to the PLC24, and the PLC24 controls the capping device 1 to immediately stop the arm retracting action;

[0058] "Extend" inching control: Touch the "Extend" key with your finger for a long time to send the "Extend" start signal to PLC24, PLC24 starts to execute the telescopic motor 6 to open the brake action program, PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26, the telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 is energized and attracted, the telescopic motor brake contactor KMBX45 moving contact is closed, and the drive motor brakes. The telescopic motor brake 54 in the brake device 47 is opened; at the same time, PLC24 continues to execute the arm extension action program, and the PLC output unit 26 outputs a signal to the telescopic drive circuit unit 30. The second relay KA2 and the third relay KA3 coils in the telescopic drive circuit unit 30 are energized and attracted, and the second relay KA2 and the third relay KA3 in the input terminal of the telescopic inverter 21 are closed. The telescopic inverter 21 outputs a low frequency, and the telescopic motor 6 connected to the output terminals U, V, and W of the telescopic inverter 21 reverses and works at a low speed, driving The telescopic arm screw mechanism 14 in the capping device 1 continues to extend the arm. After the telescopic induction head 17 at the head of the capping device 1 touches the arm in place proximity sensor 10, the arm in place signal in the position detection unit 29 is sent to the PLC input unit 25 in the PLC24. The PLC24 outputs a signal to the electromagnetic brake output unit 41 through the PLC output unit 26. The output end telescopic motor brake contactor KMBX45 coil in the electromagnetic brake output unit 41 loses power, and the telescopic motor brake contactor KMBX45 moving contact opens. The telescopic motor brake 54 in the motor brake device 47 is locked; at the same time, the PLC output unit 26 outputs a signal to the second relay KA2 and the third relay KA3 in the telescopic drive circuit unit 30, and the coils are de-energized, and the second relay KA2 and the third relay KA3 in the input terminal of the telescopic frequency converter 21 are disconnected, the telescopic frequency converter 21 stops working, and the telescopic motor 6 stops reversing; if the finger leaves the "extend" key, the "extend" stop signal is sent to the PLC24, and the PLC24 controls the capping device 1 to immediately stop the arm extension action;

[0059] "Drop" inching control: Touch the "drop" key with your finger for a long time to send the "drop" start signal to PLC24, PLC24 executes the cover drop action program, and the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, the coil of the lifting and dropping motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and attracted, the moving contact of the lifting and dropping motor brake contactor KMBY46 is closed, and the lifting and dropping motor brake 55 in the driving motor brake device 47 is opened; at the same time, the PLC output unit 26 outputs a signal to the lifting and dropping drive circuit unit (31), the coil of the cover drop relay KA12 in the lifting and dropping drive circuit unit 31 is energized and attracted, the moving contact of the cover drop relay KA12 in the input terminal of the lifting and dropping inverter 22 is closed, and the lifting and dropping motor 7 works in reverse, driving the lifting and dropping arm worm gear mechanism 15 in the capping device 1 to start the cover drop action, and the lifting and dropping sensor head 16 at the tail of the capping device 1 touches the drop position proximity sensor 12 Afterwards, the PLC input unit 25 position detection unit 29 at the input end of PLC24 receives the landing signal, and the PLC output unit 26 in PLC24 outputs a signal to the lifting and lowering driving circuit unit (31), the coil of the cover-dropping relay KA12 in the lifting and lowering driving circuit unit 31 loses power, the moving contact of the cover-dropping relay KA12 in the input terminal of the lifting and lowering inverter 22 opens, and the lifting and lowering motor 7 stops working; at the same time, the PLC output unit 26 in PLC24 outputs a signal to the electromagnetic brake output unit 41, the coil of the lifting and lowering motor brake contactor KMBY46 in the electromagnetic brake output unit 41 is energized and de-energized, the moving contact of the lifting and lowering motor brake contactor KMBY46 opens, the lifting and lowering motor brake 55 in the driving motor brake device 47 is locked, and the lifting and lowering arm worm gear mechanism 15 ends the cover-dropping action; if the finger leaves the "drop" key, the "drop" stop signal is sent to PLC24, and PLC24 controls the capping device 1 to immediately stop the cover-dropping action.

Claims

1. A mechanical intelligent capping DCDC electronic control system for a mixed-iron vehicle, the mixed-iron vehicle comprising an active end (48), a passive end (49), and a tank body (50) disposed therebetween and having a tank opening (51), a tank cover (52) being movably disposed at the tank opening (51), the active end (48) comprising a dust cover, a capping device (1) being disposed on the dust cover, and a position detection unit (29) being disposed at the capping device (1), characterized in that: The cover device (1) also includes an electrical control cabinet (2) and a vehicle-mounted operating box (3). The electrical control cabinet (2) is equipped with a battery pack (19), a PLC (24), a DC / DC module (20), a telescopic frequency converter (21), and a lifting and lowering frequency converter (22). The cover device (1) includes a lifting and lowering motor (7). The output end of the lifting and lowering motor (7) is provided with a lifting and lowering arm worm gear mechanism (15). The top of the lifting and lowering arm worm gear mechanism (15) is provided with a telescopic arm lead screw mechanism (14). The rear end and front end of the telescopic arm lead screw mechanism (14) are respectively connected to the telescopic motor (6) and the tank cover (52). One output end of the battery pack (19) is connected to the input end of the DC / DC module (20), and the other output end is used as a control power supply unit (23). The output end of the DC / DC module (20) is respectively connected to the telescopic frequency converter (21) and the lifting and lowering frequency converter (22). The telescopic frequency converter (21) and the lifting and lowering frequency converter (22) are respectively connected to the telescopic motor (6). ) and a lifting motor (7); the PLC (24) input end and output end are respectively provided with a PLC input unit (25) and a PLC output unit (26); the PLC input unit (25) is respectively connected to the vehicle-mounted operation box (3), the battery pack (19), the DC / DC module (20), the position detection unit (29), the telescopic frequency converter (21) and the lifting frequency converter (22); the PLC output unit (26) is respectively connected to a protection circuit unit (32), a telescopic drive circuit unit (30) and a lifting drive circuit unit (31); the protection circuit unit (32), the telescopic drive circuit unit (30) and the lifting drive circuit unit (31) are respectively connected to the input ends of the DC / DC module (20), the telescopic frequency converter (21) and the lifting frequency converter (22); the PLC (24), the PLC input unit (25) and the PLC output unit (26) are respectively connected to the control power supply unit (23); The position detection unit (29) comprises a retracted arm in-position proximity sensor (8), a retracted arm deceleration proximity sensor (9), an extended arm in-position proximity sensor (10) and an extended arm deceleration proximity sensor (11) arranged along the telescopic arm lead screw mechanism (14), and a dropped arm in-position proximity sensor (12) and a raised arm in-position proximity sensor (13) arranged along the lifting and lowering arm worm gear mechanism (15), wherein a telescopic sensing head (17) and a lifting and lowering sensing head (16) are respectively arranged on the front and rear sides of the telescopic arm lead screw mechanism (14), and the retracted arm in-position proximity sensor (8), the retracted arm deceleration proximity sensor (9), the extended arm in-position proximity sensor (10), the extended arm deceleration proximity sensor (11), the dropped arm in-position proximity sensor (12) and the raised arm in-position proximity sensor (13) are all connected to a PLC input unit (25) of the PLC (24); The protection circuit unit (32) comprises a DC / DC module working relay (K1), the coil of the DC / DC module working relay (K1) is connected to the PLC output unit (26), and its make contact is connected to the input end of the DC / DC module (20); the telescopic drive circuit unit (30) comprises a first relay (KA1), a second relay (KA2) and a third relay (KA3), the coils of the first relay (KA1), the second relay (KA2) and the third relay (KA3) are respectively connected to the PLC output unit (26), and the make contacts of the first relay (KA1), the second relay (KA2) and the third relay (KA3) are respectively connected to the PLC output unit (26), and the make contacts of the first relay (KA1), the second relay (KA2) and the third relay (KA3) are respectively connected to the PLC output unit (26). The lifting and lowering drive circuit unit (31) comprises a cover lifting relay (KA11) and a cover lowering relay (KA12), the coils of the cover lifting relay (KA11) and the cover lowering relay (KA12) are respectively connected to the PLC output unit (26), and the moving contacts of the cover lifting relay (KA11) and the cover lowering relay (KA12) are respectively connected to the input end of the lifting and lowering frequency converter (22); the telescopic motor (6) and the lifting and lowering motor (7) are provided with a motor brake device (47), and the motor brake device (47) is connected to the PLC output unit (26) via the electromagnetic brake output unit (41); The electromagnetic brake output unit (41) comprises a telescopic motor brake contactor KMBX (45) and a lifting motor brake contactor KMBY (46); the motor brake device (47) comprises a telescopic motor brake (54) and a lifting motor brake (55); the coils of the telescopic motor brake contactor KMBX (45) and the lifting motor brake contactor KMBY (46) are connected to the PLC output unit (26); the moving contacts of the telescopic motor brake contactor KMBX (45) and the lifting motor brake contactor KMBY (46) are respectively connected between the control power supply unit (23) and the telescopic motor brake (54) and the lifting motor brake (55).

2. According to claim 1, a mechanical intelligent capping DCDC electronic control system for a mixed-rail vehicle is characterized in that: The protection circuit unit (32) is connected to a heat dissipation drive circuit unit (33), the heat dissipation drive circuit unit (33) comprises a plurality of fans (44), and the fans (44) are connected to the make and break contacts of the DC / DC module working relay (K1) and the control power supply unit (23).

3. The DCDC electronic control system for mechanical intelligent capping of a hybrid vehicle according to claim 2 is characterized in that: A one-touch cover-lifting button (36), a one-touch cover-dropping button (37) and an emergency stop button (38) with their own indicator lights are arranged on the panel of the vehicle-mounted operating box (3), and two ends of the one-touch cover-lifting button (36), the one-touch cover-dropping button (37) and the emergency stop button (38) are respectively connected between the output end of the control power supply unit (23) and the PLC input unit (25).

4. The DCDC electronic control system for mechanical intelligent capping of a hybrid vehicle according to claim 3 is characterized in that: The PLC (24) is connected to a touch screen HMI (28) and / or a wireless AP (27); when the touch screen HMI (28) is connected to the PLC (24), the touch screen HMI (28) is connected to a control power supply unit (23) to obtain power; when the wireless AP (27) is connected to the PLC (24), the wireless AP (27) is connected to the control power supply unit (23) to obtain power, and the wireless AP (27) is communicatively connected to a ground unit (53).

5. The DCDC electronic control system for mechanical intelligent capping of a hybrid vehicle according to claim 4 is characterized in that: It also includes a power supply unit (4) and power connection devices (5) arranged on both sides of the active end. The battery pack (19) is connected to a charger (18), and the charger (18) is connected to the power connection device (5).

6. The DCDC electronic control system for mechanical intelligent capping of a hybrid vehicle according to claim 5, characterized in that: The vehicle-mounted operating box (3) is provided with an emergency socket (34) and a charging indicator light (39), and the emergency socket (34) and the charging indicator light (39) are connected to the charger (18).

7. A control method for the DCDC electronic control system for mechanical intelligent capping of a hybrid vehicle based on claim 6, characterized in that: include: Control preparation: the battery pack (19) supplies a DC96V power supply to the input end of the DC / DC module (20), the DC / DC module (20) starts self-testing, and sends the self-testing result to the PLC (24) through the communication cable. The PLC (24) outputs a signal to the protection circuit unit (32), driving the coil of the DC / DC module working relay (K1) in the protection circuit unit (32) to be energized and attracted, the DC / DC module working relay (K1) at the input end of the DC / DC module (20) closes, and the output end of the DC / DC module (20) outputs an AC380V power supply to the PN end of the telescopic inverter (21) and the lifting inverter (22), and the telescopic inverter (21) and the lifting inverter (22) start to power on; if the DC / DC module (20) self-tests an error, the DC / DC module (20) has no output, and feeds back an alarm message to the touch screen HMI (28), and synchronously sends the alarm message to the ground unit (53) through the wireless AP (27) and displays it; "One-key cover lifting" control: a "one-key cover lifting" start signal is input to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53), the PLC (24) executes the cover lifting action program, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), the coil of the lifting motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) is energized and attracted, the moving contact of the lifting motor brake contactor KMBY (46) is closed, and the lifting motor brake (55) in the driving motor brake device (47) is opened; at the same time, the P The LC output unit (26) outputs a signal to the lifting and lowering drive circuit unit (31). The coil of the cover lifting relay (KA11) in the lifting and lowering drive circuit unit (31) is energized and attracted. The moving contact of the cover lifting relay (KA11) in the input terminal of the lifting and lowering inverter (22) is closed. The lifting and lowering motor (7) rotates forward and drives the lifting and lowering arm worm gear mechanism (15) in the cover adding device (1) to start the cover lifting action. After the lifting and lowering sensor head (16) at the tail of the cover adding device (1) touches the lifting position proximity sensor (13), the position detection unit (29) of the PLC (24) input end PLC input unit (25) receives the lifting position signal. The PLC output unit (26) in the PLC (24) outputs a signal to the lifting and lowering drive circuit unit (31), the coil of the lifting cover relay (KA11) in the lifting and lowering drive circuit unit (31) loses power, the moving contact of the lifting cover relay (KA11) in the input terminal of the lifting and lowering inverter (22) opens, and the lifting and lowering motor (7) stops working; at the same time, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), the coil of the lifting and lowering motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) loses power, and the moving contact of the lifting and lowering motor brake contactor KMBY (46) opens. The lifting motor brake (55) in the driving motor brake device (47) is locked, and the lifting arm worm gear mechanism (15) ends the cover lifting action; the PLC (24) starts to execute the telescopic motor (6) opening brake action program, and the PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26), and the coil of the telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX (45) is closed, and the telescopic motor brake (54) in the driving motor brake device (47) is opened;At the same time, the PLC (24) continues to execute the arm retracting action program, the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the first relay (KA1) coil in the telescopic drive circuit unit (30) is energized and attracted, the first relay (KA1) moveable contact in the input terminal of the telescopic frequency converter (21) is closed, the telescopic frequency converter (21) outputs a normal frequency, and the telescopic motor (6) connected to the output terminals U, V, and W of the telescopic frequency converter (21) rotates forward, driving the telescopic arm lead screw mechanism (14) in the capping device (1) to start the arm retracting action, and the capping device (1) is used to control the telescopic arm to move. ) when the telescopic induction head (17) at the head of the telescopic drive unit (20) touches the arm retraction deceleration proximity sensor (9), the arm retraction deceleration signal in the position detection unit (29) is sent to the PLC (24) PLC input unit (25), the PLC (24) executes the arm retraction deceleration action program, and the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the third relay (KA3) coil in the telescopic drive circuit unit (30) is energized and attracted, the third relay (KA3) in the input terminal of the telescopic inverter (21) is closed, and the telescopic inverter (21) outputs a low frequency, which is connected to the telescopic inverter ( 21) The telescopic motor (6) on the output side U, V, and W rotates forward at a low speed to drive the telescopic arm lead screw mechanism (14) in the capping device (1) to continue the arm retraction action. After the telescopic sensor head (17) at the head of the capping device (1) touches the arm retraction position proximity sensor (8), the arm retraction position signal in the position detection unit (29) is sent to the PLC input unit (25) in the PLC (24). The PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26). The output end telescopic motor brake contactor K in the electromagnetic brake output unit (41) The MBX (45) coil loses power, the closing contact of the telescopic motor brake contactor KMBX (45) opens, and the telescopic motor brake (54) in the motor brake device (47) locks; at the same time, the PLC output unit (26) outputs a signal to the first relay (KA1) and the third relay (KA3) in the telescopic drive circuit unit (30) to close the coil, the closing contact of the first relay (KA1) and the third relay (KA3) in the input terminal of the telescopic frequency converter (21) opens, the telescopic frequency converter (21) stops working, the forward rotation of the telescopic motor (6) stops, and the one-button cover lifting action ends; "One-touch cover drop" control: a "one-touch cover drop" start signal is input to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53), and the PLC (24) starts to execute the telescopic motor (6) to open the brake action program. The PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26), and the coil of the telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX (45) is closed, and the telescopic motor brake (54) in the drive motor brake device (47) is opened; When the PLC (24) continues to execute the arm extension program, the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the coil of the second relay (KA2) in the telescopic drive circuit unit (30) is energized and attracted, the moving contact of the second relay (KA2) in the input terminal of the telescopic frequency converter (21) is closed, the telescopic frequency converter (21) outputs a normal frequency, and the telescopic motor (6) connected to the output terminals U, V, and W of the telescopic frequency converter (21) reverses and drives the telescopic arm lead screw mechanism (14) in the capping device (1) to start the arm extension action, and the telescopic induction head (17) at the head of the capping device (1) touches the arm deceleration proximity sensor. After the device (11) is turned on, the arm retracting deceleration signal in the position detection unit (29) is sent to the PLC (24) PLC input unit (25), the PLC (24) executes the arm extension deceleration action program, the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the third relay (KA3) coil in the telescopic drive circuit unit (30) is energized and attracted, the third relay (KA3) in the input terminal of the telescopic frequency converter (21) is closed, the telescopic frequency converter (21) outputs a low frequency, the telescopic motor (6) connected to the output terminal U, V, W side of the telescopic frequency converter (21) works in low speed reverse direction, and the telescopic arm wire in the capping device (1) is driven. The lever mechanism (14) continues the arm extension action, and after the telescopic induction head (17) at the head of the covering device (1) touches the arm extension position proximity sensor (10), the arm extension position signal in the position detection unit (29) is sent to the PLC input unit (25) in the PLC (24), and the PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26), and the output end of the telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) loses power, the moving contact of the telescopic motor brake contactor KMBX (45) opens, and the telescopic motor brake (54) in the motor brake device (47) is locked;At the same time, the PLC output unit (26) outputs a signal to the coils of the second relay (KA2) and the third relay (KA3) in the telescopic drive circuit unit (30), and the power is lost. The moving contacts of the second relay (KA2) and the third relay (KA3) in the input terminal of the telescopic frequency converter (21) are disconnected, the telescopic frequency converter (21) stops working, and the telescopic motor (6) stops rotating in reverse. The PLC (24) continues to execute the cover drop action program, and the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), and the electromagnetic brake output The coil of the lifting motor brake contactor KMBY (46) in the output unit (41) is energized and attracted, the moving contact of the lifting motor brake contactor KMBY (46) is closed, and the lifting motor brake (55) in the driving motor brake device (47) is opened; at the same time, the PLC output unit (26) outputs a signal to the lifting drive circuit unit (31), the coil of the cover drop relay (KA12) in the lifting drive circuit unit (31) is energized and attracted, the moving contact of the cover drop relay (KA12) in the input terminal of the lifting inverter (22) is closed, and the lifting motor (7) is reversed. The cover is operated to drive the worm gear mechanism (15) of the lifting and dropping arm in the cover adding device (1) to start the cover dropping action. After the lifting and dropping sensing head (16) at the tail of the cover adding device (1) touches the drop-in position proximity sensor (12), the position detection unit (29) of the PLC input unit (25) at the input end of the PLC (24) receives the drop-in position signal, and the PLC output unit (26) in the PLC (24) outputs a signal to the lifting and dropping drive circuit unit (31). The coil of the cover dropping relay (KA12) in the lifting and dropping drive circuit unit (31) loses power, and the cover drops at the input terminal of the lifting and dropping inverter (22). The normally closed contact of the relay (KA12) opens, and the lifting motor (7) stops working. At the same time, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), and the coil of the lifting motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) is energized and de-energized, and the normally closed contact of the lifting motor brake contactor KMBY (46) opens, and the lifting motor brake (55) in the driving motor brake device (47) is locked, and the lifting arm worm gear mechanism (15) ends the cover dropping action, and the one-button cover dropping action ends. "Lift" inching control: a "lift" start signal is sent to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53). The PLC (24) executes the cover lifting action program. The PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41). The coil of the lifting motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) is energized and attracted. The moving contact of the lifting motor brake contactor KMBY (46) is closed, and the lifting motor brake (55) in the driving motor brake device (47) is opened. At the same time, the PLC output unit (26) outputs a signal to the lifting drive circuit unit (31). The lifting drive circuit unit (31) The coil of the cover lifting relay (KA11) is energized and attracted, and the moving contact of the cover lifting relay (KA11) in the input terminal of the lifting and lowering inverter (22) is closed, and the lifting and lowering motor (7) works in the forward direction, driving the lifting and lowering arm worm gear mechanism (15) of the cover adding device (1) to start the cover lifting action; when the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53) transmits the "lift" stop signal to the PLC (24), the PLC output unit (26) in the PLC (24) outputs a signal to the lifting and lowering drive circuit unit (31), the coil of the cover lifting relay (KA11) in the lifting and lowering drive circuit unit (31) loses power, and the moving contact of the cover lifting relay (KA11) in the input terminal of the lifting and lowering inverter (22) opens, and the lifting and lowering motor (7) starts to work in the forward direction, driving the lifting and lowering arm worm gear mechanism (15) of the cover adding device (1) to start the cover lifting action; when the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53) sends the "lift" stop signal to the PLC (24), the PLC output unit (26) in the PLC (24) outputs a signal to the lifting and lowering drive circuit unit (31), and the coil of the cover lifting relay (KA11) in the lifting and lowering drive circuit unit (31) loses power, and the moving contact of the cover lifting relay (KA11) in the input terminal of the lifting and lowering inverter (22) opens, and the lifting and lowering motor (7) starts to work in the forward direction, driving the lifting and lowering arm worm gear mechanism (15) of the cover adding device (1) starts to start the cover lifting action; when the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53) sends the "lift" stop signal to the PLC ( ) stops working; at the same time, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), the coil of the lifting motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) loses power, the moving contact of the lifting motor brake contactor KMBY (46) opens, the lifting motor brake (55) in the driving motor brake device (47) is locked, and the lifting arm worm gear mechanism (15) ends the cover lifting action; or when the lifting sensor head (16) at the tail of the cover adding device (1) touches the lifting position proximity sensor (13), the position detection unit (29) of the PLC input unit (25) at the input end of the PLC (24) receives the lifting position signal, and the PLC output unit (25) in the PLC (24) receives the lifting position signal. The element (26) outputs a signal to the lifting and lowering drive circuit unit (31), the coil of the lifting cover relay (KA11) in the lifting and lowering drive circuit unit (31) loses power, the moving contact of the lifting cover relay (KA11) in the input terminal of the lifting and lowering inverter (22) opens, and the lifting and lowering motor (7) stops working; at the same time, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41), the coil of the lifting and lowering motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) loses power, the moving contact of the lifting and lowering motor brake contactor KMBY (46) opens, the lifting and lowering motor brake (55) in the driving motor brake device (47) is locked, and the lifting and lowering arm worm gear mechanism (15) ends the lifting and lowering action; "Retract" inching control: a "retract" start signal is sent to the PLC (24) via the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53), and the PLC (24) starts to execute the telescopic motor (6) opening brake action program. The PLC (24) outputs a signal to the electromagnetic brake output unit (41) via the PLC output unit (26), and the coil of the telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX (45) is closed, and the telescopic motor brake contactor KMBX (45) in the drive motor brake device (47) is closed. The gate (54) is opened; at the same time, the PLC (24) continues to execute the arm retracting action program, the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the first relay (KA1) and the third relay (KA3) coils in the telescopic drive circuit unit (30) are energized and attracted, the first relay (KA1) and the third relay (KA3) in the input terminal of the telescopic frequency converter (21) are closed, the telescopic frequency converter (21) outputs a low frequency, and the telescopic motor (6) connected to the output terminals U, V, W of the telescopic frequency converter (21) rotates forward at a low speed, driving the telescopic arm lead screw in the capping device (1). The arm retracting mechanism (14) starts the arm retracting action. After the telescopic induction head (17) at the head of the covering device (1) touches the arm retracting position proximity sensor (8), the arm retracting position signal in the position detection unit (29) is sent to the PLC input unit (25) in the PLC (24). The PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26). The coil of the output end telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) loses power, the moving contact of the telescopic motor brake contactor KMBX (45) opens, and the telescopic motor in the motor brake device (47) is turned off. The holding brake (54) is locked; at the same time, the PLC output unit (26) outputs a signal to the first relay (KA1) and the third relay (KA3) in the telescopic drive circuit unit (30), causing the coils to lose power, the first relay (KA1) and the third relay (KA3) in the input terminal of the telescopic inverter (21) are disconnected, the telescopic inverter (21) stops working, and the telescopic motor (6) stops rotating forward; if the vehicle-mounted operating box (3), the touch screen HMI (28) or the ground unit (53) sends a "retract" stop signal to the PLC (24), the PLC (24) controls the covering device (1) to immediately stop the arm retracting action; "Extend" inching control: the "extend" start signal is sent to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53), and the PLC (24) starts to execute the telescopic motor (6) to open the brake action program. The PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26), and the coil of the telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) is energized and attracted, and the moving contact of the telescopic motor brake contactor KMBX (45) is closed, and the telescopic motor brake in the drive motor brake device (47) is closed. (54) is opened; at the same time, the PLC (24) continues to execute the arm extension action program, the PLC output unit (26) outputs a signal to the telescopic drive circuit unit (30), the second relay (KA2) and the third relay (KA3) coils in the telescopic drive circuit unit (30) are energized and attracted, the second relay (KA2) and the third relay (KA3) in the input terminal of the telescopic frequency converter (21) are closed, the telescopic frequency converter (21) outputs a low frequency, and the telescopic motor (6) connected to the output terminals U, V, W of the telescopic frequency converter (21) reverses and operates at a low speed, driving the telescopic arm lead screw mechanism ( 14) The arm extension action continues. After the telescopic induction head (17) at the head of the covering device (1) touches the arm extension proximity sensor (10), the arm extension signal in the position detection unit (29) is sent to the PLC input unit (25) in the PLC (24). The PLC (24) outputs a signal to the electromagnetic brake output unit (41) through the PLC output unit (26). The coil of the output end telescopic motor brake contactor KMBX (45) in the electromagnetic brake output unit (41) loses power. The moving contact of the telescopic motor brake contactor KMBX (45) opens, and the telescopic motor in the motor brake device (47) is turned off. The holding brake (54) is locked; at the same time, the PLC output unit (26) outputs a signal to the second relay (KA2) and the third relay (KA3) in the telescopic drive circuit unit (30), causing the coils to lose power, the second relay (KA2) and the third relay (KA3) in the input terminal of the telescopic frequency converter (21) are disconnected, the telescopic frequency converter (21) stops working, and the telescopic motor (6) stops reversing; if the vehicle-mounted operating box (3), the touch screen HMI (28) or the ground unit (53) sends an "extend" stop signal to the PLC (24), the PLC (24) controls the capping device (1) to immediately stop the arm extension action; "Drop" inching control: The "drop" start signal is sent to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53). The PLC (24) executes the cover drop action program. The PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit (41). The coil of the lifting motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) is energized and attracted. The moving contact of the lifting motor brake contactor KMBY (46) is closed, and the driving motor brake device (47) is driven. ) opens the lifting motor brake (55); at the same time, the PLC output unit (26) outputs a signal to the lifting drive circuit unit (31), the coil of the cover-dropping relay (KA12) in the lifting drive circuit unit (31) is energized and attracted, the moving contact of the cover-dropping relay (KA12) in the input terminal of the lifting inverter (22) is closed, the lifting motor (7) reverses and drives the lifting arm worm gear mechanism (15) in the cover-adding device (1) to start the cover-dropping action, and the lifting sensor head (16) at the tail of the cover-adding device (1) touches the drop-in position proximity sensor (12). After that, the position detection unit (29) of the PLC input unit (25) at the input terminal of the PLC (24) receives the landing signal, and the PLC output unit (26) in the PLC (24) outputs a signal to the lifting and lowering drive circuit unit (31), the coil of the cover-dropping relay (KA12) in the lifting and lowering drive circuit unit (31) loses power, the moving contact of the cover-dropping relay (KA12) in the input terminal of the lifting and lowering inverter (22) opens, and the lifting and lowering motor (7) stops working; at the same time, the PLC output unit (26) in the PLC (24) outputs a signal to the electromagnetic brake output unit ( 41), the coil of the lifting and lowering motor brake contactor KMBY (46) in the electromagnetic brake output unit (41) is energized and de-energized, the moving contact of the lifting and lowering motor brake contactor KMBY (46) is opened, the lifting and lowering motor brake (55) in the driving motor brake device (47) is locked, and the lifting and lowering arm worm gear mechanism (15) ends the cover dropping action; if the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53) sends a "drop" stop signal to the PLC (24), the PLC (24) controls the capping device (1) to immediately stop the cover dropping action; "Emergency stop" control: an "emergency stop" start signal is input to the PLC (24) through the vehicle-mounted operation box (3), the touch screen HMI (28) or the ground unit (53), the PLC (24) executes the program, and the PLC (24) outputs a signal to cause the coil of the DC / DC module working relay (K1) to lose power, the DC / DC module working relay (K1) moving contact is disconnected, and the system stops working.

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