A steel car on-site operation remote control system

Abstract

The utility model belongs to the steel production technical field discloses a kind of steel car on-site operation remote control system, including operation box, and the controller being communicated with operation box;Operation box is equipped with ladle capping walking motor, ladle capping hook motor and the operating circuit for driving;Operating circuit includes walking motor loop, hook motor loop and power supply loop;Walking motor loop includes circuit breaker QF1, circuit breaker QF2, ac contactor KM1, ac contactor KM2, thermal relay FR1 and three-phase ac motor M3~;Hook motor loop includes circuit breaker QF1, circuit breaker QF3, ac contactor KM3, ac contactor KM4, thermal relay FR2 and three-phase ac motor M3~;Power supply loop is connected by circuit breaker respectively.The utility model has realized the remote operation of equipment, and operator can operate equipment far from dangerous source and place of sight difference, avoid the harm caused by molten steel spatter etc., or the equipment operation accident caused by sight difference.

Description

Technical Field

[0001] This utility model belongs to the field of steel production technology, and specifically relates to a local operation remote control system for steel vehicles. Background Technology

[0002] The current method of covering steel cars and ladles involves operating from a fixed control box on-site. Every time molten steel is poured from the ladle car and blown from the bottom of the line, the molten steel inside the ladle is prone to splashing, which can easily endanger the personal safety of the operators. Utility Model Content

[0003] In view of this, the present invention provides a remote control system for on-site operation of steel vehicles to solve the above problems.

[0004] To solve the above technical problems, this utility model provides a local operation remote control system for steel vehicles, comprising:

[0005] The control box, and the controller that communicates with the control box;

[0006] The control box is equipped with a ladle cover walking motor, a ladle cover hook motor, and an operating circuit for driving the ladle cover walking motor and the ladle cover hook motor.

[0007] The operating circuit includes a travel motor circuit, a hook motor circuit, and a power supply circuit. The travel motor circuit includes circuit breakers QF1 and QF2, AC contactors KM1 and KM2, thermal relay FR1, and a three-phase AC motor M3. The hook motor circuit includes circuit breakers QF1 and QF3, AC contactors KM3 and KM4, thermal relay FR2, and a three-phase AC motor M3. The power supply circuits are connected via circuit breakers.

[0008] As an optional approach, circuit breaker QF1 is installed on a three-phase circuit and connected to switches L11, L12 and L13, which are used to control the travel motor circuit, hook motor circuit and power supply circuit respectively.

[0009] As an alternative, in the walking motor circuit, circuit breaker QF2 is connected to switches L21, L22 and L23; AC contactors KM1 and KM2 are connected in parallel, and the three-phase AC motor M3 is grounded.

[0010] As an alternative, in the hook motor circuit, circuit breaker QF3 is connected to switches L31, L32 and L33; AC contactors KM3 and KM4 are connected in parallel, and the three-phase AC motor M3 is grounded.

[0011] As an alternative, the power supply circuit includes a controller power supply controlled by circuit breaker QF4, a control power supply controlled by circuit breaker QF5, and an onboard power supply controlled by circuit breaker QF6. The onboard power supply is a 24VAC / DC switching power supply, and one end of it is equipped with circuit breaker QF7.

[0012] As an optional approach, the control power supply includes a walking motor control circuit, a hook motor control circuit, and a remote control operation warning circuit.

[0013] As an optional method, the walking motor control circuit includes a changeover switch SA1, buttons SB1 and SB2, relays KA1 and KA2, and AC contactors KM1 and KM2 connected to thermal relay FR1 via external limit switches; wherein, the changeover switch SA1 is provided with three positions: manual, 0 position and remote control; the external limit switches are provided with switches SQ1 and SQ2.

[0014] As an optional configuration, the hook motor control circuit includes a changeover switch SA2, pushbuttons SB3 and SB4, relays KA3 and KA4, and is connected to AC contactors KM3 and KM4 and thermal relay FR2 via external limit switches. The changeover switch SA2 has three positions: manual, 0, and remote control. The external limit switches are SQ3 and SQ4.

[0015] As an optional method, the remote-controlled warning circuit includes a relay KS2 and an audible and visual alarm LT.

[0016] As an optional approach, the controller and the control box are each equipped with multiple paired PLC interfaces for issuing operating commands to the walking motor and the hook motor.

[0017] The beneficial effects of this utility model are as follows:

[0018] This invention enables remote operation of the equipment, allowing operators to operate the equipment away from hazardous sources and areas with poor visibility, thus avoiding injuries caused by molten steel splashes or equipment operation accidents due to poor visibility. Attached Figure Description

[0019] Figure 1 A schematic diagram of the operating circuit structure provided for an embodiment of this utility model;

[0020] Figure 2 A schematic diagram of the control power supply circuit structure provided in an embodiment of this utility model. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] Please see Figure 1 and Figure 2 This embodiment provides a local operation remote control system for a ladle car, including: an operation box and a controller communicatively connected to the operation box; the operation box is equipped with a ladle cover traveling motor, a ladle cover hook motor, and an operation circuit for driving the ladle cover traveling motor and the ladle cover hook motor; the operation circuit includes a traveling motor circuit, a hook motor circuit, and a power supply circuit; the traveling motor circuit includes circuit breakers QF1 and QF2, AC contactors KM1 and KM2, thermal relay FR1, and three-phase AC motors M3 and M4; the hook motor circuit includes circuit breakers QF1 and QF3, AC contactors KM3 and KM4, thermal relay FR2, and three-phase AC motors M3 and M4; the power supply circuits are connected through the circuit breakers respectively.

[0023] As an optional feature, the control box in this embodiment is equipped with a running indicator for the steel car and ladle cover, a local operation button, a remote / local operation switch, and an alarm indicator. The controller can be a handheld remote controller, and a transmitter with an emergency stop button, a start button, and an action button, and good dustproof performance can be selected.

[0024] In this embodiment, circuit breaker QF1 is installed on the three-phase circuit and connected to switches L11, L12, and L13 to control the travel motor circuit, hook motor circuit, and power supply circuit, respectively. In the travel motor circuit, circuit breaker QF2 is connected to switches L21, L22, and L23; AC contactors KM1 and KM2 are connected in parallel, and the three-phase AC motor M3 is grounded. In the hook motor circuit, circuit breaker QF3 is connected to switches L31, L32, and L33; AC contactors KM3 and KM4 are connected in parallel, and the three-phase AC motor M3 is grounded.

[0025] As an optional configuration, the power supply circuit includes a controller power supply controlled by circuit breaker QF4, a control power supply controlled by circuit breaker QF5, and an onboard power supply controlled by circuit breaker QF6. The onboard power supply is a 24VAC / DC switching power supply, with a circuit breaker QF7 installed at one end. The control power supply includes a travel motor control circuit, a hook motor control circuit, and a remote control operation warning circuit.

[0026] As an optional method, the walking motor control circuit includes a changeover switch SA1, buttons SB1 and SB2, relays KA1 and KA2, and AC contactors KM1 and KM2 connected to thermal relay FR1 via external limit switches; wherein, the changeover switch SA1 is provided with three positions: manual, 0 position and remote control; the external limit switches are provided with switches SQ1 and SQ2.

[0027] As an optional configuration, the hook motor control circuit includes a changeover switch SA2, pushbuttons SB3 and SB4, relays KA3 and KA4, and is connected to AC contactors KM3 and KM4 and thermal relay FR2 via external limit switches. The changeover switch SA2 has three positions: manual, 0, and remote control. The external limit switches are SQ3 and SQ4.

[0028] As an optional method, the remote control operation warning circuit includes a relay KS2 and an audible and visual alarm LT. The controller and control box are each equipped with multiple paired PLC interfaces for issuing operation commands to the travel motor and hook motor.

[0029] Through the above solution, this embodiment mainly realizes remote operation of the equipment. Operators can operate the equipment away from dangerous sources and places with poor visibility, avoiding injuries caused by molten steel splashing, equipment operation accidents caused by poor visibility, and timely pressing of the emergency stop button on the remote control in case of an accident.

[0030] The above are merely preferred embodiments of this utility model. It should be noted that the above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A remote control system for on-site operation of a steel vehicle, characterized in that, include: An operating box, and a controller communicatively connected to the operating box; The control box is equipped with a ladle cover walking motor, a ladle cover hook motor, and an operating circuit for driving the ladle cover walking motor and the ladle cover hook motor. The operating circuit includes a travel motor circuit, a hook motor circuit, and a power supply circuit; the travel motor circuit includes circuit breakers QF1 and QF2, AC contactors KM1 and KM2, thermal relay FR1, and a three-phase AC motor M3; the hook motor circuit includes circuit breakers QF1 and QF3, AC contactors KM3 and KM4, thermal relay FR2, and a three-phase AC motor M3; the power supply circuits are connected via circuit breakers.

2. The on-site remote control system for steel vehicles according to claim 1, characterized in that, The circuit breaker QF1 is installed on the three-phase circuit and is connected to switches L11, L12 and L13, which are used to control the walking motor circuit, hook motor circuit and power supply circuit respectively.

3. The on-site remote control system for steel vehicles according to claim 1, characterized in that, In the walking motor circuit, circuit breaker QF2 is connected to switches L21, L22 and L23; AC contactors KM1 and KM2 are connected in parallel, and three-phase AC motor M3 is grounded.

4. The on-site remote control system for steel vehicles according to claim 1, characterized in that, In the hook motor circuit, circuit breaker QF3 is connected to switches L31, L32 and L33; AC contactors KM3 and KM4 are connected in parallel, and the three-phase AC motor M3 is grounded.

5. The on-site remote control system for steel vehicles according to claim 1, characterized in that, The power circuit includes a controller power supply controlled by circuit breaker QF4, a control power supply controlled by circuit breaker QF5, and an airborne power supply controlled by circuit breaker QF6. The airborne power supply is a 24V AC / DC switching power supply, and one end of it is equipped with circuit breaker QF7.

6. A steel vehicle local operation remote control system according to claim 5, characterized in that, The control power supply includes a walking motor control circuit, a hook motor control circuit, and a remote control operation early warning circuit.

7. A steel vehicle local operation remote control system according to claim 6, characterized in that, The walking motor control circuit includes a changeover switch SA1, buttons SB1 and SB2, relays KA1 and KA2, and is connected to AC contactor KM1 and AC contactor KM2 and thermal relay FR1 via external limit switches. The changeover switch SA1 has three positions: manual, 0 position and remote control. The external limit switches are switches SQ1 and SQ2.

8. A steel vehicle local operation remote control system according to claim 6, characterized in that, The hook motor control circuit includes a changeover switch SA2, buttons SB3 and SB4, relays KA3 and KA4, and is connected to AC contactors KM3 and KM4 and thermal relay FR2 via external limit switches. The changeover switch SA2 has three positions: manual, 0, and remote control. The external limit switches are switches SQ3 and SQ4.

9. A steel vehicle local operation remote control system according to claim 6, characterized in that, The remote control operation early warning circuit includes a relay KS2 and an audible and visual alarm LT.

10. A steel vehicle local operation remote control system according to claim 1, characterized in that, The controller and the control box are each equipped with multiple paired PLC interfaces for issuing operation commands to the walking motor and the hook motor.

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