CN219435245U - DCAC electric control system for mechanical intelligent capping of torpedo hot metal mixer car - Google Patents

Abstract

The utility model discloses a mechanical intelligent capping DCAC electric control system for a metal mixer, which is simple and reasonable in design, adopts a DC/AC module to provide an alternating current power supply, utilizes a wireless AP end to realize remote centralized control or on-site airborne control box and an HMI to control a variable frequency-PLC control system, adopts a mechanical transmission driving mechanism to realize one-key automatic capping and capping of a capping device and inching of each subsection action, and a vehicle-mounted touch screen and an upper computer feed back the information of the current working state, the health condition of each vehicle-mounted device and the like in real time, thereby providing visual safe operation guarantee for a capping electric control system and operators, realizing safe and reliable control, and simultaneously adopting a modularized installation mode for each unit of the control system, solving the problems of quick assembly and various fault treatments of the capping device and the electric control system, and greatly saving the production and maintenance cost of a tank turned over by iron.

Description

DCAC electric control system for mechanical intelligent capping of torpedo hot metal mixer car

Technical Field

The utility model belongs to the technical field of electric control of a metal mixer, and relates to a mechanical intelligent capping DCAC electric control system for the metal mixer.

Background

The hot metal mixer car plays an important role in metallurgical enterprises as indispensable molten iron transportation and storage equipment in modern metallurgical industry, and through including driving end and driven end, the hot metal mixer car is through including active end and driven end, and the activity sets up the jar body that is used for storing and transporting molten iron between the main and auxiliary ends, and jar mouth opening is located jar body top central point department, and the smoke and dust that gives off in the jar body causes air pollution to avoid the molten iron to open and cause molten iron temperature to run off too fast because of the jar mouth, is provided with heat preservation capping device on the hot metal mixer car generally.

At present, in an electric control system for heat preservation and capping of a tank opening of a domestic iron mixing vehicle, a key operation mode of a vehicle-mounted control cabinet or a near-ground hand-held remote controller is mostly adopted, and a relay control mode or a small PLC (programmable logic controller) is used for driving a related action mechanism to finish the operation of lifting and dropping a heat preservation cover. The hand-held remote control transmitter has a complex structure and complex operation, and can not realize remote control of one-to-many vehicles; in the actual cover lifting operation, at least two operators are required to be configured for each tap hole, so that the field operation, the field monitoring and the coordination work are completed, and the iron receiving and pouring field environment has great potential safety hazards for the operators; in addition, the vehicle-mounted power supply technology adopted by the existing iron mixing vehicle is usually that a high-voltage battery pack directly supplies power to drive a direct-current load mode or a low-voltage battery pack drives an alternating-current load mode after passing through an inversion boosting device, and when the two power supply modes are in practical application, the vehicle-mounted power supply device is large in size, complex in control system and not suitable for limited-area overhaul or installation operation of the iron mixing vehicle, in a system action period, the response time of system hardware is long, and the action period of a capping mechanism is long, so that the battery pack consumes too fast electric energy, and the requirements of iron receiving, tank turning production timeliness, instantaneity and the like cannot be met.

Disclosure of Invention

Aiming at the technical defects in the background technology, the utility model provides a mechanical intelligent capped DCAC electric control system for a metal mixer, which solves the technical problems as follows:

the utility model relates to a mechanical intelligent capping DCAC electric control system for a metal mixer, which comprises a driving end, a driven end and a tank body which is arranged between the driving end and the driven end and is provided with a tank opening, wherein the tank opening is movably provided with a tank cover, the driving end comprises a dust cover, a capping device is arranged on the dust cover, and a position detection unit is arranged at the capping device; the electric control cabinet is internally provided with a battery pack, a PLC, a DC/AC module, a protection circuit unit, a telescopic driving circuit unit, a lifting driving circuit unit and a frequency converter; the capping device comprises a lifting motor, a lifting arm worm and gear mechanism is arranged at the output end of the lifting motor, a telescopic arm screw mechanism is arranged at the top of the lifting arm worm and gear mechanism, and the rear end and the front end of the telescopic arm screw mechanism are respectively connected with a telescopic motor and a tank cap; one output end of the battery pack is connected with the input end of the DC/AC module, and the other output end is used as a control power supply unit and connected with the PLC; the PLC input end is connected with a vehicle-mounted operation box, a position detection unit and a PLC communication interface, and the output end is respectively connected with a protection circuit unit, a telescopic driving circuit unit and a lifting driving circuit unit; the protection circuit unit is connected with the input end of the DC/AC module, the output end of the DC/AC module is respectively connected with the frequency converter and the lifting driving circuit unit, and the lifting driving circuit unit is connected with the lifting motor; the telescopic driving circuit unit is connected with the input end of the frequency converter; the output end of the frequency converter is connected with the telescopic motor; the battery pack, the DC/AC module and the frequency converter are respectively connected with the PLC communication interface through communication cables.

Further, the position detection unit comprises an arm retraction in-place proximity sensor, an arm retraction deceleration proximity sensor, an arm extension in-place proximity sensor and an arm extension deceleration proximity sensor which are arranged along the telescopic arm screw mechanism, and an in-place proximity sensor which are arranged along the lifting arm worm gear mechanism, wherein the front side and the rear side of the telescopic arm screw mechanism are respectively provided with a telescopic induction head and a lifting induction head, and the arm retraction in-place proximity sensor, the arm retraction deceleration proximity sensor, the arm extension in-place proximity sensor, the arm extension deceleration proximity sensor, the in-place proximity sensor and the in-place proximity sensor are all connected with a PLC input end.

Further, the protection circuit unit comprises a DC/AC module working relay, a DC/AC module working relay coil is connected with the output end of the PLC, and a movable contact is connected with the input end of the DC/AC module; the telescopic driving circuit unit comprises 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 with the output end of the PLC, and the movable contact points of the first relay, the second relay and the third relay are respectively connected with the input end of the frequency converter; the lifting drive circuit unit comprises a lifting contactor and a falling contactor, wherein coils of the lifting contactor and the falling contactor are respectively connected with the output end of the PLC, and movable contacts of the lifting contactor and the falling contactor are connected in parallel and then connected between the output end of the DC/AC module and the lifting motor; the lifting motor is provided with a telescopic motor band-type brake through a telescopic motor band-type brake contactor KMB, a coil of the telescopic motor band-type brake contactor KMB is connected with the output end of the PLC, and a movable contact of the telescopic motor band-type brake contactor KMB is connected between the output end of the DC/AC module and the telescopic motor band-type brake.

Further, the protection circuit unit is connected with a heat dissipation driving circuit unit, the heat dissipation driving circuit unit comprises a plurality of fans, and the fans are connected with the movable contact of the DC/AC module working relay and the control power supply unit.

Further, a one-key cover lifting button, a one-key cover falling button and a scram button with indication lamps are arranged on the panel of the vehicle-mounted operation box, and two ends of the one-key cover lifting button, the one-key cover falling button and the scram button are respectively connected between the output end of the control power supply unit and the input end of the PLC.

Further, the PLC is connected with a touch screen HMI and/or a wireless AP; when the PLC is connected with the touch screen HMI, the touch screen HMI is connected with the control power supply unit to acquire a power supply; when the PLC is connected with a wireless AP, the wireless AP is connected with a control power supply unit to obtain power, and the wireless AP is in communication connection with a ground unit.

Further, the battery pack also comprises a power supply unit and power connection devices arranged on two sides of the driving end, and a charger is connected to the battery pack and connected with the power connection devices.

Further, an emergency socket and a charging indicator lamp are arranged on the vehicle-mounted operation box, and the emergency socket and the charging indicator lamp are connected with the charger.

Further, the position detection unit, the vehicle-mounted operation box, the telescopic motor, the lifting motor and the electric control cabinet are respectively connected with each other through a module plug.

The utility model discloses a control method for a mechanical intelligent capping DCAC electric control system of a torpedo hot metal mixer car based on the technical scheme, which comprises the following steps:

control preparation: the battery pack supplies a DC48V power supply to the input end of the DC/AC module, the DC/AC module self-tests and sends a self-test result to a PLC communication interface of the PLC through a communication cable, if the DC/AC module self-tests, the PLC outputs a signal to the protection circuit unit, a coil of a working relay of the DC/AC module in the protection circuit unit is driven to be electrified and closed, a movable contact of the working relay of the DC/AC module at the input end of the DC/AC module is closed, the output end of the DC/AC module outputs an AC380V power supply to the R, S, T end of the frequency converter, and the frequency converter starts to be electrified; if the DC/AC module self-checking is wrong, the DC/AC module does not output, alarm information is fed back to the touch screen HMI, and the alarm information is synchronously sent to the ground unit through the wireless AP and displayed;

one-key cover lifting control: the method comprises the steps that a one-key cover lifting start signal is input to a PLC through a vehicle-mounted operation box, a touch screen HMI or a ground unit, the PLC executes a cover lifting action program and outputs a signal to a cover lifting drive circuit unit, a cover lifting contactor coil in the cover lifting drive circuit unit is electrified and attracted, a cover lifting contactor moving contact is closed, a cover lifting motor works in a forward direction, a cover lifting arm worm and gear mechanism in a cover lifting device is driven to start to lift a cover, after a cover lifting inductive head at the tail of the cover lifting device is bumped to a close sensor in place, a PLC input end position detection unit receives a lifting signal, the PLC outputs the signal to the cover lifting drive circuit unit, the cover lifting contactor coil in the cover lifting drive circuit unit is electrified, the cover lifting contactor moving contact is opened, the cover lifting motor stops working, and the cover lifting arm worm and gear mechanism finishes the cover lifting action; the PLC starts to execute a flexible motor brake opening action program, the PLC outputs signals to a flexible motor brake contactor KMB coil, the flexible motor brake contactor KMB coil is electrified and closed, and a flexible motor brake is driven to be opened; meanwhile, the PLC continues to execute an arm retracting action program, a signal is output to a telescopic driving circuit unit, a first relay coil in the telescopic driving circuit unit is electrified and sucked, a first relay movable contact at the input end of a frequency converter is closed, the frequency converter outputs normal frequency, a telescopic motor connected to the output end U, V, W side of the frequency converter rotates positively to work, a telescopic arm screw mechanism in a capping device is driven to start arm retracting action, after a telescopic induction head at the head of the capping device is contacted with an arm retracting proximity sensor, an arm retracting deceleration signal in a position detection unit is sent to the input end of the PLC, the PLC executes the arm retracting action program, the signal is output to the telescopic driving circuit unit, a third relay coil in the telescopic driving circuit unit is electrified and sucked, a third relay movable contact at the input end of the frequency converter is closed, the frequency converter outputs low frequency, a telescopic motor connected to the output end U, V, W side of the frequency converter rotates positively at a low speed, the telescopic motor in the capping device is driven to continue arm retracting action, after the telescopic induction head of the capping device is contacted with the arm retracting proximity sensor, an arm in the position detection unit is contacted with the telescopic induction head of the capping device, the arm is contacted with the arm retracting proximity sensor, the arm deceleration signal in the position detection unit is sent to the input end of the PLC, the telescopic motor is contacted with a telescopic brake B, and the telescopic brake is contacted with the PLC, and the telescopic brake is locked by the PLC; meanwhile, the first relay and the third relay coil in the telescopic driving circuit unit at the output end of the PLC are powered off, the first relay and the third relay movable contact at the input end of the frequency converter are disconnected, the frequency converter stops working, the telescopic motor stops rotating positively, and the one-key cover lifting action is finished;

"one key drop cover" control: inputting a one-key cover falling start signal to a PLC through a vehicle-mounted operation box, a touch screen HMI or a ground unit, starting the PLC to execute a flexible motor brake opening action program, outputting a signal to a flexible motor brake contactor KMB coil by the PLC, enabling the flexible motor brake contactor KMB coil to be electrically attracted, closing a flexible motor brake contactor KMB movable contact, and driving the flexible motor brake to be opened; meanwhile, the PLC continues to execute an arm stretching action program, a signal is output to the telescopic driving circuit unit, a second relay coil in the telescopic driving circuit unit is electrified and sucked, a second relay movable contact at the input end of the frequency converter is closed, the frequency converter outputs normal frequency, a telescopic motor connected to the side of the output end U, V, W of the frequency converter works reversely, the telescopic arm screw mechanism in the capping device is driven to start arm stretching action, after a telescopic induction head at the head of the capping device is contacted to an arm stretching speed reduction proximity sensor, an arm stretching speed reduction signal in the position detection unit is sent to the input end of the PLC, the PLC executes the arm stretching speed reduction action program, the signal is output to the telescopic driving circuit unit, a third relay coil in the telescopic driving circuit unit is electrified and sucked, a third relay movable contact at the input end of the frequency converter is closed, the frequency converter outputs low frequency, a telescopic motor connected to the side U, V, W of the frequency converter works reversely at a low speed, the telescopic arm screw mechanism in the driving capping device continues the arm stretching action, after the telescopic induction head of the capping device is contacted to the arm stretching speed proximity sensor through the telescopic induction head of the KM, the arm in the position detection unit is sent to the position detection unit to the input end of the PLC, the telescopic motor is contacted with the telescopic motor, and the telescopic motor is locked by the telescopic motor B contacts with the PLC, and the telescopic motor contacts with the PLC brake; meanwhile, the coils of the second relay and the third relay in the telescopic driving circuit unit at the output end of the PLC are powered off, the movable contact points of the second relay and the third relay at the input end of the frequency converter are disconnected, the frequency converter stops working, and the telescopic motor stops reversing; the PLC continues to execute a cover falling action program, outputs a signal to a lifting drive circuit unit, a cover falling contactor coil in the lifting drive circuit unit is electrified and sucked, a cover falling contactor movable contact is closed, a lifting motor works reversely, a cover falling arm worm gear mechanism in a cover lifting device is driven to start cover falling action, after a cover falling sensing head at the tail part of the cover lifting device is contacted with a in-place proximity sensor, a PLC input end position detection unit receives a in-place signal, the PLC outputs the signal to the lifting drive circuit unit, the cover falling contactor coil in the lifting drive circuit unit is powered off, the cover falling contactor movable contact is opened, the lifting motor stops working, the cover falling action is finished by the lifting arm worm gear mechanism, and the one-key cover falling action is finished;

"lifting" jog control: the lifting starting signal is sent to the PLC through the vehicle-mounted operation box, the touch screen HMI or the ground unit, the PLC executes a lifting action program and outputs a signal to the lifting driving circuit unit, a lifting contactor coil in the lifting driving circuit unit is electrified and attracted, a lifting contactor movable contact is closed, a lifting motor works in a forward direction, a lifting arm worm and gear mechanism in the capping device is driven to start lifting action, when the vehicle-mounted operation box, the touch screen HMI or the ground unit transmits a lifting stopping signal to the PLC, the PLC output end controls the lifting contactor coil in the lifting driving circuit unit to lose electricity, the lifting contactor movable contact is opened, and the lifting motor stops working in the forward direction immediately; or after the lifting inductive head device at the tail part of the capping device collides with the lifting in-place proximity sensor, the PLC input end position detection unit receives a lifting in-place signal, the PLC outputs the signal to the lifting driving circuit unit, a coil of the lifting contactor in the lifting driving circuit unit is powered off, a movable contact of the lifting contactor is opened, the lifting motor stops working, and the lifting arm worm and gear mechanism finishes the lifting action;

"retract" jog control: sending a retraction starting signal to a PLC (programmable logic controller) through a vehicle-mounted operation box, a touch screen HMI (human machine interface) or a ground unit, starting to execute a telescopic motor brake opening action program by the PLC, outputting a signal to a telescopic motor brake contactor KMB coil by the PLC, enabling the telescopic motor brake contactor KMB coil to be electrically attracted, closing a telescopic motor brake contactor KMB movable contact, and driving a telescopic motor brake to be opened; meanwhile, the PLC executes an arm retracting action program, outputs signals to a telescopic driving circuit unit, a first relay and a third relay coil in the telescopic driving circuit unit are electrified and closed, a first relay and a third relay movable contact at the input end of the frequency converter are closed, the frequency converter outputs low frequency, a telescopic motor connected to the output end U, V, W side of the frequency converter works in a low-speed forward rotation mode, a telescopic arm screw mechanism in the capping device is driven to continue arm retracting action, after a telescopic induction head at the head of the capping device collides with an arm retracting in-place proximity sensor, an arm retracting in-place signal in the position detection unit is sent to the input end of the PLC, a telescopic motor band-type brake contactor KMB coil is electrified and powered off, the telescopic motor band-type brake contactor KMB movable contact is opened, and the telescopic motor band-type brake is locked; meanwhile, the first relay and the third relay coil in the telescopic driving circuit unit at the output end of the PLC are powered off, the first relay and the third relay movable contact at the input end of the frequency converter are disconnected, the frequency converter stops working, and the telescopic motor stops rotating forwards; if the vehicle-mounted operation box, the touch screen HMI or the ground unit sends a retraction stopping signal to the PLC, the PLC controls the capping device to immediately stop the arm retracting action;

"extend" jog control: sending an 'extension' starting signal to a PLC (programmable logic controller) through a vehicle-mounted operation box, a touch screen HMI (human machine interface) or a ground unit, starting to execute a flexible motor brake opening action program by the PLC, outputting a signal to a flexible motor brake contactor KMB (KMB) coil by the PLC, enabling the flexible motor brake contactor KMB coil to be electrically attracted, closing a flexible motor brake contactor KMB moving contact, and driving a flexible motor brake to be opened; meanwhile, the PLC executes an arm stretching action program, signals are output to the telescopic driving circuit unit, a second relay and a third relay coil in the telescopic driving circuit unit are electrified and attracted, a second relay and a third relay movable contact at the input end of the frequency converter are closed, the frequency converter outputs low frequency, a telescopic motor connected to the side of the output end U, V, W of the frequency converter works in a low-speed reverse manner, the telescopic arm screw mechanism in the capping device is driven to continue arm stretching action, after a telescopic induction head at the head of the capping device is contacted to an arm stretching in-place proximity sensor, an arm stretching in-place signal in the position detecting unit is sent to the input end of the PLC, a telescopic motor band-type brake contactor KMB coil is electrified and deenergized, a telescopic motor band-type brake contactor KMB movable contact is opened, and the telescopic motor is locked; meanwhile, the coils of the second relay and the third relay in the telescopic driving circuit unit at the output end of the PLC are powered off, the movable contact points of the second relay and the third relay at the input end of the frequency converter are disconnected, the frequency converter stops working, and the telescopic motor stops reversing; if the vehicle-mounted operation box, the touch screen HMI or the ground unit sends an 'extension' stop signal to the PLC, the PLC controls the capping device to immediately stop the arm extension action;

Drop inching control: the method comprises the steps that a 'falling' starting signal is sent to a PLC through a vehicle-mounted operation box, a touch screen HMI or a ground unit, the PLC executes a falling action program, a signal is output to a lifting drive circuit unit, a falling contactor coil in the lifting drive circuit unit is electrified and attracted, a falling contactor movable contact is closed, a lifting motor works reversely, a lifting arm worm and gear mechanism in a capping device is driven to start a falling action, after a lifting induction head at the tail part of the capping device is touched to a falling position approaching sensor, a PLC input end position detection unit receives a falling position signal, the PLC outputs the signal to the lifting drive circuit unit, the falling contactor coil in the lifting drive circuit unit is powered off, the falling contactor movable contact is opened, the falling motor stops working, and the lifting arm worm and gear mechanism finishes the falling action; if the vehicle-mounted operation box, the touch screen HMI or the ground unit sends a falling stopping signal to the PLC, the PLC controls the capping device to immediately stop the capping action;

"scram" control: the vehicle-mounted operation box, the touch screen HMI or the ground unit inputs a 'scram' starting signal to the PLC, the PLC executes a program, the PLC outputs a signal to enable the coil of the DC/AC module working relay to lose electricity, the movable contact of the DC/AC module working relay is disconnected, and the system stops working.

Compared with the prior art, the mechanical intelligent capping DCAC electric control system for the metal mixer is simple and reasonable in design, adopts a DC/AC module to provide an alternating current power supply, utilizes a wireless AP end to realize remote centralized control or on-site onboard control box and an HMI to control a variable frequency-PLC control system, adopts a mechanical transmission driving mechanism to realize one-key automatic capping and capping of a capping device and inching of each subsection action, and feeds back the current working state, the health condition of each device on the vehicle and other information in real time by a vehicle-mounted touch screen and an upper computer, so that visual safe operation guarantee is provided for a capping electric control system and operators, the control is safe and reliable, and meanwhile, each unit of the control system adopts a modularized installation mode, so that the rapid moving and various fault treatments of the capping device and the electric control system are solved, and the production and maintenance cost of a tank which is turned over by iron is greatly saved. After application, the electronic control system has short action cycle time, low failure rate and convenient maintenance, and effectively ensures the production requirement of capping operation of the metal mixer.

Drawings

FIG. 1 is a schematic view of the present utility model installed on a torpedo car;

FIG. 2 is an enlarged schematic view of the capping device of the present utility model;

FIG. 3 is a schematic diagram of the control process of the electrical control system according to the present utility model;

FIG. 4 is a schematic diagram of a touch screen HMI main interface of the present utility model;

FIG. 5 is a schematic diagram of an HMI action state and click interface of a touch screen according to the present utility model;

FIG. 6 is a schematic view of a vehicle operator box panel according to the present utility model;

FIG. 7 is a schematic diagram of a DC/AC system control in accordance with the present utility model;

FIG. 8 is a schematic diagram of an electronic control system according to the present utility model;

in the figure: 1. a capping device; 2. an electrical control cabinet; 3. a vehicle-mounted operation box; 4. a power supply unit; 5. an electrical connection device; 6. a telescopic motor; 7. lifting the motor; 8. retracting the arm into position to approach the sensor; 9. arm retraction deceleration proximity sensor; 10. extending the arm into position to approximate the sensor; 11. an arm extension deceleration proximity sensor; 12. falling into place to approach the sensor; 13. lifting the proximity sensor in place; 14. a telescopic arm screw mechanism; 15. lifting arm worm and gear mechanism; 16. lifting the induction head; 17. a telescopic induction head; 18. a charger; 19. a battery pack; 20. a control power supply unit; 21. a wireless AP; 22. a PLC; 23. a touch screen HMI; 24. a position detection unit; 25. a DC/AC module; 26. a protection circuit unit; 27. a heat dissipation driving circuit unit; 28. a telescopic drive circuit unit; 29. a lifting drive circuit unit; 30. a frequency converter; 31. a PLC communication interface; 32. a module plug; 33. an emergency socket; 34. a charge indicator light; 35. an emergency stop button; 36. a key cover lifting button; 37. a key cover falling button; 38. lifting and falling the motor overload relay; 39. a telescopic motor band-type brake contactor KMB; 40. contracting brake of telescopic motor; 41. a fan; 44. a driving end; 45. a driven end; 46. a tank body; 47. a tank opening; 48. a can lid; 49. a ground unit.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in the specification and claims of the present published patent application, "upper", "lower", "left", "right", "front", "rear", etc. are used only to indicate relative positional relationships, which change when the absolute position of the object to be described changes; the terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The present utility model is not described in detail in the present application, and is well known to those skilled in the art.

Example 1:

as shown in fig. 1 to 8, the mechanical intelligent capping DCAC electric control system for the metal mixer truck according to the present utility model includes a driving end 44, a driven end 45, and a tank 46 disposed between the driving end and the driven end and having a tank opening 47, the tank opening 47 is movably provided with a tank cover 48, the driving end 44 includes a dust cover, the dust cover is provided with a capping device 1, the capping device 1 is provided with a position detection unit 24 for detecting a position where the capping device 1 is located during operation, the capping device 1 includes a lifting motor 7, an output end of the lifting motor 7 is provided with a lifting arm worm gear mechanism 15, a top of the lifting arm worm gear mechanism 15 is provided with a telescopic arm lead screw mechanism 14, a rear end and a front end of the telescopic arm lead screw mechanism 14 are respectively connected with a telescopic motor 6 and a tank cover 48, a middle part of the telescopic arm lead screw mechanism is rotatably connected with the top of the dust cover, the telescopic arm lead screw mechanism 14 can be moved up and down by the action of the lifting motor 7 and the lifting arm worm gear mechanism 15, thereby the tank cover 48 can be moved up and down, the telescopic arm lead screw mechanism can be moved back and down, the telescopic arm lead screw mechanism 48 can be moved by the telescopic motor 6 and the telescopic arm lead screw mechanism 14, and the telescopic arm lead screw mechanism can be moved back and retracted by the telescopic arm lead screw mechanism 48; the electric control system also comprises an electric control cabinet 2 and a vehicle-mounted operation box 3, wherein a battery pack 19, a PLC22, a DC/AC module 25, a protection circuit unit 26, a telescopic driving circuit unit 28, a lifting driving circuit unit 29 and a frequency converter 30 are arranged in the electric control cabinet 2; the battery pack 19 adopts a lithium iron phosphate battery with the capacity of 30KWh, is provided with DC48V/DC24V double-way output, the DC48V output end is connected with the input end of the DC/AC module 25 to provide power for the DC/AC module 25, and the other DC24V output end is used as a control power supply unit 20 and connected with the PLC22 to provide control power for the PLC 22; the input end of the PLC22 is connected with a vehicle-mounted operation box 3, a position detection unit 24 and a PLC communication interface 31, and the output end of the PLC22 is respectively connected with a protection circuit unit 26, a telescopic driving circuit unit 28 and a lifting driving circuit unit 29; the vehicle-mounted operation box 3 is used for inputting control instructions to the PLC22 for on-site control, a one-key cover lifting button 36, a one-key cover falling button 37 and an emergency stop button 35 with indication lamps are arranged on a panel of the vehicle-mounted operation box 3, two ends of the one-key cover lifting button 36, the one-key cover falling button 37 and the emergency stop button 35 are respectively connected between an output end of the control power supply unit 20 and an input end of the PLC22, and the vehicle-mounted operation box 3 can be respectively arranged on the left side and the right side of a driving end so as to be convenient to control; the protection circuit unit 26 is connected with an input end of the DC/AC module 25 and is used for driving and protecting the DC/AC module 25 to work, an output end of the DC/AC module 25 is respectively connected with the frequency converter 30 and the lifting drive circuit unit 29, and provides power for the frequency converter 30 and the lifting drive circuit unit 29, and the lifting drive circuit unit 29 is connected with the lifting motor 7; the telescopic driving circuit unit 28 is connected with the input end of the frequency converter 30; the output end of the frequency converter 30 is connected with the telescopic motor 6; the battery pack 19, the DC/AC module 25 and the frequency converter 30 all comprise RS-485 communication interfaces and are respectively connected with the PLC communication interface 31 through communication cables, and are used for reading, uploading and monitoring pictures of the information of the battery pack, the DC/AC module 25 and the frequency converter; the DC/AC module has low power consumption, meets the long standby requirement, has output power not less than 5.5KW, can adopt Siemens S7-200Smart series PLC, comprises AI/AO, wireless AP module and the like for monitoring the temperature, rotation speed, input/output voltage, current information, action position and other information of vehicle-mounted equipment, realizes remote control and information uploading through master-slave communication, and the frequency converter 30 adopts an ABB series frequency converter.

In this embodiment, the position detecting unit 24 includes a telescopic arm in-place proximity sensor 8, a telescopic arm deceleration proximity sensor 9, a telescopic arm in-place proximity sensor 10, a telescopic arm deceleration proximity sensor 11, and a falling in-place proximity sensor 12 and a rising in-place proximity sensor 13 disposed along a lifting arm worm gear mechanism 15, where a telescopic inductive head 17 and a lifting inductive head 16 are disposed on the front side and the rear side of the telescopic arm screw mechanism 14, and the telescopic arm in-place proximity sensor 8, the telescopic arm deceleration proximity sensor 9, the telescopic arm in-place proximity sensor 10, the telescopic arm deceleration proximity sensor 11, the falling in-place proximity sensor 12, and the rising in-place proximity sensor 13 adopt three-wire high temperature-resistant proximity sensors, and are connected to the input end of the PLC22 through wires, respectively, to assist the PLC22 in achieving accurate control positioning and motion deceleration.

In this embodiment, the protection circuit unit 26 includes a DC/AC module working relay K1, where a coil of the DC/AC module working relay K1 is connected to an output end of the PLC22, and a moving contact thereof is connected to an input end of the DC/AC module 25; the telescopic driving circuit unit 28 comprises a first relay KA1, a second relay KA2 and a third relay KA3, coils of the first relay KA1, the second relay KA2 and the third relay KA3 are respectively connected with the output end of the PLC22, and movable contacts of the first relay KA1, the second relay KA2 and the third relay KA3 are respectively connected with the input end of the frequency converter 30; the lifting driving circuit unit 29 comprises a lifting contactor KM1 and a falling contactor KM2, the coils of the lifting contactor KM1 and the falling contactor KM2 are respectively connected with the output end of the PLC22, and the movable contacts of the lifting contactor KM1 and the falling contactor KM2 are connected in parallel and then connected between the output end of the DC/AC module 25 and the lifting motor 7; the lifting motor 7 is provided with a telescopic motor band-type brake 40 through a telescopic motor band-type brake contactor KMB39, a coil of the telescopic motor band-type brake contactor KMB39 is connected with the output end of the PLC22, and a movable contact of the telescopic motor band-type brake contactor KMB39 is connected between the output end of the DC/AC module 25 and the telescopic motor band-type brake 40.

In order to facilitate the heat dissipation requirements of the devices in the electrical control cabinet 2, the protection circuit unit 26 is connected with a heat dissipation driving circuit unit 27, the heat dissipation driving circuit unit 27 includes a plurality of fans 41, and the fans 41 are connected with the movable contact of the DC/AC module working relay K1 and the control power supply unit 20.

In this embodiment, the PLC22 may be further connected with a touch screen HMI23, and the touch screen HMI23 communicates with the PLC22 to complete on-site operations of adding and removing a cover, where the touch screen HMI23 may be installed on a front door of the electrical control cabinet 2, and connected with the control power supply unit 20 to obtain a power supply, and meanwhile connected with the PLC22 through a DP9/RS-485 communication line to implement communication, and is provided with a related program for controlling a torpedo car in advance, and receives and displays various information transmitted from each device, each sensor, and the like; FIGS. 4 and 5 illustrate touch screen HMI main interfaces and action states and click interfaces; the HMI main interface is provided with a homepage, an overhaul page, an I/O page, an alarm and other image switching keys; the homepage is provided with a battery information frame which can feed back the information such as the current, the output voltage, the residual electric quantity, the health degree, the residual capacity and the like of the battery pack 19 in real time, a DC/AC information frame which can feed back the information such as the temperature, the input voltage, the output current and the like of the DC/AC module 29 in real time, a frequency converter information frame which can feed back the information such as the forward rotation state, the reverse transmission state and the working frequency of the frequency converter in the frequency converter 30 in real time, a capped real-time animation picture, a flash indication such as a cap lifting state and a cap falling state, a normal bright indication such as a cap lifting state and a cap falling state, and keys such as a cap lifting state and a cap resetting state of one key are arranged on the homepage for on-site system operation; the 'overhaul' page is provided with an 'on-vehicle sensor X-axis' information frame which can feed back the action position information of a telescopic arm of the capping device in the capping device 1 in real time, comprises 'stretching in place', 'shrinking in place', 'stretching arm decelerating', 'shrinking arm decelerating' normal bright indication, is provided with an 'on-vehicle sensor Y-axis' information frame which can feed back the action position information of the capping device in the capping device 1 in real time, comprises 'lifting in place', 'falling in place' normal bright indication, is also provided with an 'equipment operation' information frame, can realize an in-situ action control system, is respectively provided with 'click mode', 'lifting', 'falling', 'stretching out', 'retracting' keys, and can finish step actions such as lifting, falling, stretching and retracting by touching the four keys respectively in the click mode; the alarm page reflects mechanism action fault record information; the working states of the proximity sensors such as emergency stop key position states, one-key cover lifting, one-key cover falling action states, in-place lifting, in-place falling, arm shrinkage deceleration, in-place shrinkage, arm extension deceleration, in-place stretching and the like can be checked under the I/O page.

In this embodiment, the electronic control system may also be controlled by a remote control manner, the PLC22 may also be connected with a wireless AP21, where the wireless AP21 is connected with the control power supply unit 20 to obtain a power supply, the wireless AP21 is communicatively connected with a ground unit 49, and the ground unit 49 is provided with an upper computer, and by connecting with the wireless AP21 of each metal mixer, various information of the corresponding metal mixer may be obtained, and corresponding instructions or information may be sent to the metal mixer, so as to implement remote control and monitoring; in addition, a plurality of torches can be controlled through one ground unit, only communication needs to be established, operators are reduced, and the safety of the operators is guaranteed.

In this embodiment, the battery pack also includes a power supply unit 4 and power connection devices 5 disposed at two sides of the driving end, a charger 18 is connected to the battery pack 19, and the charger 18 is connected to the power connection devices 5 and is used for charging the battery pack; in addition, the vehicle-mounted operation box 3 is provided with an emergency socket 33 and a charging indicator lamp 34, and the emergency socket 33 and the charging indicator lamp 34 are connected with the charger 18 and can be used for emergency charging.

In this embodiment, in order to facilitate rapid installation and maintenance among the units of the electric control system, the position detection unit 24, the vehicle-mounted operation box 3, the telescopic motor 6, the lifting motor 7 and the electric control cabinet 2 are respectively connected by a module connector 32.

In this embodiment, when the vehicle-mounted operation box 3 is operated, a key cap lifting button 36 is pressed, an indicator lamp starts to flash, a cap lifting motor 7 works, a cap lifting arm worm gear mechanism 15 in the capping device 1 is driven to start to lift the cap, after a cap lifting induction head 16 device at the tail of the capping device 1 is bumped to a in-place proximity sensor 13, the cap lifting motor 7 stops working, a frequency converter 30 outputs normal frequency, a telescopic motor 6 works to drive a telescopic arm screw mechanism 14 in the capping device 1 to start to retract the arm, after a telescopic induction head 17 device at the head of the capping device 1 bumps to a telescopic arm deceleration proximity sensor 9, the frequency converter 30 outputs low frequency, the rotating speed of the telescopic motor 6 is lowered, the telescopic motor 6 stops working after the telescopic arm in-place proximity sensor 8 is bumped, the one-key cap lifting operation is ended, and the one-key cap lifting button 36 indicates that the lamp is normally on; when a key cover falling button 37 is pressed, a key cover lifting button 36 indicates lamp to be turned off, a key cover falling button 37 indicates lamp to flash, a frequency converter 30 outputs normal frequency, a telescopic motor 6 works to drive a telescopic arm screw mechanism 14 in the cover device 1 to start stretching arm action, after a telescopic induction head 17 device at the head of the cover device 1 is contacted with a stretching arm deceleration proximity sensor 11, the frequency converter 30 outputs low frequency, the rotating speed of the telescopic motor 6 is lowered, after the telescopic motor 6 is contacted with the stretching arm in-place proximity sensor 10, the telescopic motor 6 stops working, a lifting motor 7 in the cover device 1 starts working, a lifting arm worm gear mechanism 15 is driven to start cover falling action, after a lifting induction head 16 device at the tail of the cover device 1 is contacted with a falling proximity sensor 12, the lifting motor 7 stops working, and the key cover falling button 37 indicates lamp to be normally on. When the capping device 1 works, the sudden state can beat the emergency stop button 35, and the action is stopped immediately; the emergency charging socket 33 and the charging indicator lamp 34 of the panel of the vehicle-mounted operation box 3 are connected with the emergency charging socket 33 of the panel of the vehicle-mounted operation box 3 through a power plug of an AC380V power supply in the ground power supply 4, and the battery pack 19 can be charged in an emergency through the charger 18, and the charging indicator lamp 34 is turned on during charging. In addition, the on-vehicle operation box 3 may be provided with "click mode", "raise", "drop", "extend", "retract" keys, etc. in the touch screen HMI access page, and may be provided with corresponding indicator lamps, etc. for on-site click control.

Example 2:

the utility model relates to a control method for a mechanical intelligent capping DCAC electric control system of a metal mixer, which is based on the embodiment 1, wherein the control of a vehicle-mounted operation box 3, a touch screen HMI23 and a ground unit 49 of the electric control system is used for explanation, and the three modes can be independently or cooperatively operated, and each mode is explained one by one:

control preparation: the battery pack 19 supplies a DC48V power supply to the input end of the DC/AC module 25, the DC/AC module 25 performs self-test and sends a self-test result to the PLC communication interface 31 of the PLC22 through a communication cable, if the DC/AC module 25 performs self-test, the PLC22 outputs a signal to the protection circuit unit 26, a coil of the DC/AC module working relay K1 in the protection circuit unit 26 is driven to be electrified and closed, a movable contact of the DC/AC module working relay K1 at the input end of the DC/AC module 25 is closed, an AC380V power supply is output from the output end of the DC/AC module 25 to the R, S, T end of the frequency converter 30, and the frequency converter 30 starts to be electrified; if the self-checking of the DC/AC module 25 is wrong, the DC/AC module 25 does not output, and feeds back alarm information to the touch screen HMI23, and synchronously sends the alarm information to the ground unit 49 through the wireless AP21 and displays the alarm information;

the in-vehicle console box 3 operates in situ:

one-key cover lifting control: pressing a one-key cover lifting key 36 on a panel of the vehicle-mounted operation box 3, sending a one-key cover lifting starting signal to the input end of the PLC22, executing a cover lifting action program by the PLC22, outputting a signal to a cover lifting driving circuit unit 29, powering up and powering down a coil of a cover lifting contactor KM1 in the cover lifting driving circuit unit 29, closing a movable contact of the cover lifting contactor KM1, operating a cover lifting motor 7 in a forward rotation manner, driving a cover lifting arm worm gear mechanism 15 in the cover lifting device 1 to start the cover lifting action, receiving a lifting signal by a position detection unit 24 at the input end of the PLC22 after a lifting sensing head 16 at the tail part of the cover lifting device 1 is contacted with a lifting-in-place proximity sensor 13, powering down the coil of the cover lifting contactor KM1 in the cover lifting driving circuit unit 29, opening the movable contact of the cover lifting contactor KM1, stopping the work of the cover lifting motor 7, and ending the cover lifting action by the worm gear mechanism 15; the PLC22 starts to execute a flexible motor 6 brake opening action program, the PLC22 outputs a signal to a coil of a flexible motor brake contactor KMB39, the coil of the flexible motor brake contactor KMB39 is electrified to be attracted, a movable contact of the flexible motor brake contactor KMB39 is closed, and a flexible motor brake 40 is driven to be opened; simultaneously, the PLC22 continues to execute an arm retracting action program, output signals to the telescopic driving circuit unit 28, a first relay KA1 coil in the telescopic driving circuit unit 28 is electrified and sucked, a first relay KA1 movable contact at the input end of the frequency converter 30 is closed, the frequency converter 30 outputs normal frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 is operated in a forward rotation mode, the telescopic arm screw mechanism 14 in the capping device 1 is driven to start arm retracting action, after a telescopic induction head 17 at the head of the capping device 1 is contacted with an arm retracting proximity sensor 9, arm retracting deceleration signals in the position detection unit 24 are sent to the input end of the PLC22, the PLC22 executes arm retracting action program, output signals to the telescopic driving circuit unit 28, a third relay KA3 coil in the telescopic driving circuit unit 28 is electrified and sucked, the third relay KA3 movable contact at the input end of the frequency converter 30 is closed, the frequency converter 30 outputs low frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 is operated in a forward rotation mode, the arm retracting mechanism 14 in the capping device 1 is driven to continue arm retracting action, after the arm retracting action 14 is contacted with the telescopic induction head 17 at the head of the telescopic induction device 1 to the position detection unit to reach the telescopic induction head 39B, and the telescopic induction head of the telescopic induction motor is contacted with the telescopic induction head 39B, and the telescopic induction motor is contacted with the telescopic induction head 39 is contacted with the telescopic induction motor 22; meanwhile, the coils of the first relay KA1 and the third relay KA3 in the telescopic driving circuit unit 28 at the output end of the PLC22 are powered off, the movable contact points of the first relay KA1 and the third relay KA3 at the input end of the frequency converter 30 are disconnected, the frequency converter 30 stops working, the telescopic motor 6 stops rotating positively, and the one-key cover lifting action is finished;

"one key drop cover" control: pressing a key cover falling button 37 on a panel of the vehicle-mounted operation box 3, sending a key cover falling start signal to the input end of the PLC22, starting the PLC22 to execute a brake opening action program of the telescopic motor 6, outputting a signal to a coil of a brake contactor KMB39 of the telescopic motor by the PLC22, powering on and powering on the coil of the brake contactor KMB39 of the telescopic motor, closing a brake contact KMB39 of the telescopic motor, and driving a brake 40 of the telescopic motor to open; simultaneously, the PLC22 continues to execute an arm stretching action program, signals are output to the telescopic driving circuit unit 28, a second relay KA2 coil in the telescopic driving circuit unit 28 is electrified and sucked, a second relay KA2 movable contact at the input end of the frequency converter 30 is closed, the frequency converter 30 outputs normal frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 works reversely, the telescopic arm screw mechanism 14 in the capping device 1 is driven to start arm stretching action, after the telescopic induction head 17 at the head of the capping device 1 is contacted to the arm stretching proximity sensor 11, arm stretching deceleration signals in the position detection unit 24 are sent to the input end of the PLC22, the PLC22 executes the arm stretching deceleration action program, signals are output to the telescopic driving circuit unit 28, a third relay KA3 coil in the telescopic driving circuit unit 28 is electrified and sucked, the third relay KA3 movable contact at the input end of the frequency converter 30 is closed, the frequency converter 30 outputs low frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 works reversely at a low speed, the telescopic arm mechanism 14 in the capping device 1 continues arm stretching action, after the telescopic induction head 17 of the capping device 1 is contacted to the telescopic arm deceleration proximity sensor 11, signals are sent to the telescopic drive unit 39B to the telescopic drive unit, and the telescopic drive unit is contacted to the telescopic motor 22B, and the telescopic arm deceleration signals are contacted to the telescopic drive unit 39; meanwhile, the coils of the second relay KA2 and the third relay KA3 in the telescopic driving circuit unit 28 at the output end of the PLC22 are powered off, the movable contact points of the second relay KA2 and the third relay KA3 at the input end of the frequency converter 30 are disconnected, the frequency converter 30 stops working, and the telescopic motor 6 stops reversing; the PLC22 continues to execute a cover falling action program, outputs a signal to the lifting drive circuit unit 29, the coil of the cover falling contactor KM2 in the lifting drive circuit unit 29 is electrified and sucked, the movable contact of the cover falling contactor KM2 is closed, the lifting motor 7 reversely works to drive the cover falling arm worm gear mechanism 15 in the cover adding device 1 to start cover falling action, after the lifting sensing head 16 at the tail part of the cover adding device 1 touches the in-place proximity sensor 12, the input end position detection unit 24 of the PLC22 receives the in-place signal, the PLC22 outputs the signal to the lifting drive circuit unit 29, the coil of the cover falling contactor KM2 in the lifting drive circuit unit 29 is in power failure, the movable contact of the cover falling contactor KM2 is opened, the lifting motor 7 stops working, the cover falling arm worm gear mechanism 15 ends the cover falling action, and one-key cover falling action ends;

"scram" control: pressing the emergency stop button 35 on the panel of the vehicle-mounted operation box 3 inputs an emergency stop start signal to the PLC22, the PLC22 executes a program, and the PLC22 outputs a signal to enable the coil of the DC/AC module working relay K1 to be powered off, so that the movable contact of the DC/AC module working relay K1 is disconnected, and the system stops working.

Ground unit remote control "one-key cover lifting" and "one-key cover falling":

the ground unit establishes communication with the PLC22 through the vehicle-mounted wireless AP21, receives information related to the controlled torpedo car, sends a control instruction to complete one-key cover lifting or one-key cover falling operation of the torpedo car cover covering device 1 through the vehicle-mounted wireless AP21 and the PLC22 through the picture operation of the upper computer, and receives the action state and action information of one-key cover lifting of an electric control system of the cover covering device 1 in real time; battery pack 19 power, current, voltage information; DC/AC module 25 temperature, output voltage, current, input voltage information; PLC22 inputs/outputs point status, frequency converter 30 operating frequency, current, alarm information, etc. The remote control method is executed by pressing a one-key cover lifting method or a one-key cover falling method in the on-site control of the vehicle-mounted operation box 3, and comprises a remote self-checking process of control preparation.

Touch screen HMI control:

clicking one-key cover lifting or one-key cover falling in a homepage of the touch screen HMI23, and enabling the control system to complete corresponding control actions, wherein the control method is executed according to the one-key cover lifting or one-key cover falling method in the on-site control of the vehicle-mounted operation box 3 and comprises a self-checking process of control preparation, and if an emergency occurs, clicking 'reset' in the homepage of the touch screen, the system immediately stops working; clicking 'overhaul' in a homepage of the touch screen, entering the paging surface, clicking 'click mode' in an 'equipment operation' information frame, namely, entering a click operation mode by a control system:

"lifting" jog control: the finger touches the lifting key for a long time, a lifting starting signal is sent to the PLC22, the PLC22 executes a lifting action program, a signal is output to the lifting driving circuit unit 29, a coil of the lifting contactor KM1 in the lifting driving circuit unit 29 is electrified and sucked, a movable contact of the lifting contactor KM1 is closed, the lifting motor 7 works in a forward direction, the lifting arm worm and gear mechanism 15 in the capping device 1 is driven to start lifting action, when the finger leaves the lifting key in the touch screen HMI23, a lifting stopping signal is transmitted to the PLC22, the output end of the PLC22 controls the power failure of the coil of the lifting contactor KM1 in the lifting driving circuit unit 29, the movable contact of the lifting contactor KM1 is opened, and the forward rotation of the lifting motor 7 is stopped immediately; or after the lifting inductive head 16 device at the tail part of the capping device 1 collides with the lifting in-place proximity sensor 13, the position detection unit 24 at the input end of the PLC22 receives a lifting in-place signal, the PLC22 outputs a signal to the lifting driving circuit unit 29, the coil of the lifting contactor KM1 in the lifting driving circuit unit 29 is powered off, the movable contact of the lifting contactor KM1 is opened, the lifting motor 7 stops working, and the lifting arm worm and gear mechanism 15 finishes the lifting action;

"retract" jog control: the finger touches the retraction key for a long time, a retraction starting signal is sent to the PLC22, the PLC22 starts to execute a flexible motor 6 to open a band-type brake action program, the PLC22 outputs a signal to a flexible motor band-type brake contactor KMB39 coil, the flexible motor band-type brake contactor KMB39 coil is electrified to be attracted, a flexible motor band-type brake contactor KMB39 movable contact is closed, and a flexible motor band-type brake 40 is driven to be opened; meanwhile, the PLC22 executes an arm retracting action program and outputs signals to the telescopic driving circuit unit 28, coils of a first relay KA1 and a third relay KA3 in the telescopic driving circuit unit 28 are electrified and closed, movable contacts of the first relay KA1 and the third relay KA3 at the input end of the frequency converter 30 are closed, the frequency converter 30 outputs low frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 rotates positively at a low speed, the telescopic arm screw mechanism 14 in the capping device 1 is driven to continue arm retracting action, after a telescopic induction head 17 at the head of the capping device 1 touches an arm retracting in-place approaching sensor 8, an arm retracting in-place signal in the position detecting unit 24 is sent to the input end of the PLC22, a telescopic motor contact KMB39 coil at the output end of the PLC22 is electrified and is in power failure, a telescopic motor brake contact KMB39 is opened, and a telescopic motor brake 40 is locked; meanwhile, the coils of the first relay KA1 and the third relay KA3 in the telescopic driving circuit unit 28 at the output end of the PLC22 are powered off, the movable contact points of the first relay KA1 and the third relay KA3 at the input end of the frequency converter 30 are disconnected, the frequency converter 30 stops working, and the telescopic motor 6 stops rotating forwards; if the finger leaves the retraction key to send a retraction stop signal to the PLC22, the PLC22 controls the capping device 1 to immediately stop the arm retraction;

"extend" jog control: the finger touches the 'stretching out' key for a long time, a 'stretching out' starting signal is sent to the PLC22, the PLC22 starts to execute a flexible motor 6 to open a band-type brake action program, the PLC22 outputs a signal to a flexible motor band-type brake contactor KMB39 coil, the flexible motor band-type brake contactor KMB39 coil is electrified to be attracted, a flexible motor band-type brake contactor KMB39 movable contact is closed, and a flexible motor band-type brake 40 is driven to be opened; meanwhile, the PLC22 executes an arm extending action program and outputs signals to the telescopic driving circuit unit 28, coils of a second relay KA2 and a third relay KA3 in the telescopic driving circuit unit 28 are electrified and closed, movable contacts of a second relay KA2 and a third relay KA3 at the input end of the frequency converter 30 are closed, the frequency converter 30 outputs low frequency, the telescopic motor 6 connected to the output end U, V, W side of the frequency converter 30 is reversely rotated at a low speed, the telescopic arm screw mechanism 14 in the capping device 1 is driven to continue arm extending action, after a telescopic induction head 17 at the head of the capping device 1 is contacted with an arm extending position approaching sensor 10, an arm extending position signal in the position detecting unit 24 is sent to the input end of the PLC22, the coil of a telescopic motor locking contactor KMB39 at the output end of the PLC22 is electrified and de-electrified, a movable contact of the telescopic motor locking contactor KMB39 is opened, and the telescopic motor locking 40 is locked; meanwhile, the coils of the second relay KA2 and the third relay KA3 in the telescopic driving circuit unit 28 at the output end of the PLC22 are powered off, the movable contact points of the second relay KA2 and the third relay KA3 at the input end of the frequency converter 30 are disconnected, the frequency converter 30 stops working, and the telescopic motor 6 stops reversing; if the finger leaves the 'stretching out' key, sending a 'stretching out' stopping signal to the PLC22, and controlling the capping device 1 to immediately stop stretching arm action by the PLC 22;

Drop inching control: the finger long touches the 'drop' key, send the 'drop' start signal to PLC22, PLC22 carries out the action procedure of falling the lid, output signal to lift the drive circuit unit 29, lift the lid contactor KM2 coil in the drive circuit unit 29 and get the electricity actuation, fall arm worm gear 15 begins the action of falling the lid in lifting motor 7 reversal work, after touching the close sensor 12 in place through lifting the inductive head 16 of the tail of capping device 1, PLC22 input position detection unit 24 receives the signal of falling in place, PLC22 output signal to lift the drive circuit unit 29, lift the lid contactor KM2 coil in the drive circuit unit 29 and lose electricity, the lid contactor KM2 moves the contact and opens, fall motor 7 stops working, lift arm worm gear 15 ends the action of falling the lid, the finger leaves the 'drop' key and capping device 1 stops the action immediately.

Claims (9)

1. A DCAC electrical system is capped to mechanical type intelligence for torpedo hot metal mixer car, the torpedo hot metal mixer car includes drive end (44), driven end (45) and establishes between the two and have jar body (46) of jar mouth (47), jar mouth (47) department activity is provided with cover (48), drive end (44) include the dust cover, are equipped with capping device (1) on the dust cover, capping device (1) department is provided with position detection unit (24), its characterized in that: the intelligent control system further comprises an electrical control cabinet (2) and a vehicle-mounted operation box (3), wherein a battery pack (19), a PLC (22), a DC/AC module (25), a protection circuit unit (26), a telescopic driving circuit unit (28), a lifting driving circuit unit (29) and a frequency converter (30) are arranged in the electrical control cabinet (2); the capping device (1) comprises a lifting motor (7), a lifting arm worm and 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 and gear mechanism (15), and the rear end and the front end of the telescopic arm screw mechanism (14) are respectively connected with a telescopic motor (6) and a tank cover (48); one output end of the battery pack (19) is connected with the input end of the DC/AC module (25), and the other output end is used as a control power supply unit (20) and connected with the PLC (22); the input end of the PLC (22) is connected with a vehicle-mounted operation box (3), a position detection unit (24) and a PLC communication interface (31), and the output end of the PLC is respectively connected with a protection circuit unit (26), a telescopic driving circuit unit (28) and a lifting driving circuit unit (29); the protection circuit unit (26) is connected with the input end of the DC/AC module (25), the output end of the DC/AC module (25) is respectively connected with the frequency converter (30) and the lifting driving circuit unit (29), and the lifting driving circuit unit (29) is connected with the lifting motor (7); the telescopic driving circuit unit (28) is connected with the input end of the frequency converter (30); the output end of the frequency converter (30) is connected with the telescopic motor (6); the battery pack (19), the DC/AC module (25) and the frequency converter (30) are respectively connected with the PLC communication interface (31) through communication cables.

2. The mechanical intelligent capped DCAC electrical control system for a torpedo car as set forth in claim 1, wherein: the position detection unit (24) comprises an arm retracting in-place proximity sensor (8), an arm retracting speed reducing proximity sensor (9), an arm extending in-place proximity sensor (10) and an arm extending speed reducing proximity sensor (11) which are arranged along the telescopic arm screw mechanism (14), and an in-place proximity sensor (12) and an in-place proximity sensor (13) which are arranged along the lifting arm worm and gear mechanism (15), wherein the front side and the rear side of the telescopic arm screw mechanism (14) are respectively provided with a telescopic induction head (17) and a lifting induction head (16), and the arm retracting in-place proximity sensor (8), the arm retracting speed reducing proximity sensor (9), the arm extending in-place proximity sensor (10), the arm extending speed reducing proximity sensor (11), the in-place proximity sensor (12) and the in-place proximity sensor (13) are all connected with the input end of the PLC (22).

3. A mechanical intelligent capped DCAC electrical control system for a torpedo car as set forth in claim 1 or 2, wherein: the protection circuit unit (26) comprises a DC/AC module working relay (K1), wherein a coil of the DC/AC module working relay (K1) is connected with the output end of the PLC (22), and a movable contact thereof is connected with the input end of the DC/AC module (25); the telescopic driving circuit unit (28) comprises a first relay (KA 1), a second relay (KA 2) and a third relay (KA 3), coils of the first relay (KA 1), the second relay (KA 2) and the third relay (KA 3) are respectively connected with the output end of the PLC (22), and movable contact points of the first relay (KA 1), the second relay (KA 2) and the third relay (KA 3) are respectively connected with the input end of the frequency converter (30); the lifting drive circuit unit (29) comprises a lifting contactor (KM 1) and a falling contactor (KM 2), coils of the lifting contactor (KM 1) and the falling contactor (KM 2) are respectively connected with the output end of the PLC (22), and movable contacts of the lifting contactor (KM 1) and the falling contactor (KM 2) are connected in parallel and then connected between the output end of the DC/AC module (25) and the lifting motor (7); the lifting motor (7) is provided with a telescopic motor band-type brake (40) through a telescopic motor band-type brake contactor KMB (39), a coil of the telescopic motor band-type brake contactor KMB (39) is connected with the output end of the PLC (22), and a movable contact of the telescopic motor band-type brake contactor KMB (39) is connected between the output end of the DC/AC module (25) and the telescopic motor band-type brake (40).

4. A mechanical intelligent capped DCAC electric control system for a torpedo car as set forth in claim 3, wherein: the protection circuit unit (26) is connected with a heat dissipation driving circuit unit (27), the heat dissipation driving circuit unit (27) comprises a plurality of fans (41), and the fans (41) are connected with the movable contact of the DC/AC module working relay (K1) and the control power supply unit (20).

5. A mechanical intelligent capped DCAC electric control system for a torpedo car as set forth in claim 3, wherein: the panel of the vehicle-mounted operation box (3) is provided with a one-key cover lifting button (36), a one-key cover falling button (37) and an emergency stop button (35) with indication lamps, and two ends of the one-key cover lifting button (36), the one-key cover falling button (37) and the emergency stop button (35) are respectively connected between the output end of the control power supply unit (20) and the input end of the PLC (22).

6. The mechanical intelligent capped DCAC electric control system for a torpedo car as set forth in claim 5, wherein: the PLC (22) is connected with a touch screen HMI (23) and/or a wireless AP (21); when the PLC (22) is connected with the touch screen HMI (23), the touch screen HMI (23) is connected with the control power supply unit (20) to acquire power supply; when the PLC (22) is connected with the wireless AP (21), the wireless AP (21) is connected with the control power supply unit (20) to acquire power, and the wireless AP (21) is in communication connection with the ground unit (49).

7. A mechanical intelligent capped DCAC electric control system for a torpedo car as set forth in claim 5 or 6, wherein: the battery pack (19) is connected with a charger (18), and the charger (18) is connected with the power connection device (5).

8. The mechanical intelligent capped DCAC electric control system for a torpedo car as set forth in claim 7, wherein: the vehicle-mounted operation box (3) is provided with an emergency socket (33) and a charging indicator lamp (34), and the emergency socket (33) and the charging indicator lamp (34) are connected with the charger (18).

9. The mechanical intelligent capped DCAC electrical control system for a torpedo car as set forth in claim 8, wherein: the position detection unit (24), the vehicle-mounted operation box (3), the telescopic motor (6), the lifting motor (7) and the electrical control cabinet (2) are respectively connected with each other in an inserting mode through a module inserting connector (32).