Simulation control system for gantry crane

Abstract

The invention discloses a simulation control system of a gantry crane. The simulation control system comprises a crane electric control module, an automatic control module, an upper computer and an input and output module, the crane electric control module is in communication connection with the automatic control module, and the automatic control module is in communication connection with the upper computer and the input and output module. And the crane electric control module is provided with a gantry crane electric control system, and the gantry crane electric control system is used for controlling the gantry crane. The system provided by the invention can accurately simulate an actual working environment, so that a user can master the electronic control system of the gantry crane more conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of port equipment automation control, and in particular to a simulation control system for a portal crane. Background Art

[0002] Port gantry cranes are the core equipment for port loading and unloading operations. The performance of the gantry crane electronic control system used to control the gantry crane directly affects the efficiency, safety and reliability of port operations. With the continuous development of automation and intelligent technology, the requirements for the gantry crane electronic control system are getting higher and higher. Therefore, it is particularly important to develop an efficient, stable and reliable gantry crane electronic control system and its simulation control system. Among them, the simulation control system can simulate the actual working environment and reproduce faults to help electricians and engineers learn and master the electrical control system of the gantry crane. However, the existing simulation control system often has the following problems: 1. The system is too complex and difficult to operate, which increases the maintenance cost and technical difficulty of the system. 2. It is impossible to accurately simulate all conditions and factors in the actual application scenario, resulting in differences between the experimental results and the actual application effects. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a simulation control system for a gantry crane, which has a simple structure and is easy to maintain, and can accurately simulate the actual working environment so that users can more easily master the gantry crane electronic control system.

[0004] The embodiment of the present invention provides a simulation control system for a portal crane, characterized in that it includes: a crane electric control module, an automatic control module, a host computer, and an input and output module;

[0005] The crane electric control module is connected to the automatic control module for communication, and the automatic control module is connected to the host computer and the input / output module for communication respectively;

[0006] The crane electric control module is provided with a portal crane electric control system, and the portal crane electric control system is used to control the portal crane.

[0007] Preferably, the automatic control module includes a PLC and a frequency converter, and the PLC is communicatively connected with the host computer and the input and output module respectively;

[0008] The automatic control module is used to control the switch operation and running speed of the portal crane through the portal crane electric control system.

[0009] Preferably, the input-output module comprises an input unit and an output unit;

[0010] The input unit is used to control the intermediate relay of the portal crane electric control system;

[0011] The output unit is used to transmit the signal sent by the portal crane electric control system to the frequency converter.

[0012] Preferably, the host computer is provided with a monitoring management unit and a simulation test unit;

[0013] The monitoring management unit is used to monitor the operating state of the portal crane electric control system in real time, and to give an alarm and perform fault diagnosis when the operating state of the portal crane electric control system is abnormal;

[0014] The simulation test unit is used to simulate the actual operation effect of the portal crane electric control system.

[0015] Preferably, an operable control panel is provided in the simulation test unit, and a plurality of operation buttons are provided on the control panel; the operation buttons are used to control the gantry crane electric control system and / or the gantry crane.

[0016] The beneficial effects of the embodiments of the present invention are as follows: a simulation control system for a gantry crane is provided, in which PLC is used to make the system adapt to harsh environmental conditions, with a simple structure and easy maintenance; a frequency converter is used to accurately control the operating speed of the gantry crane, accurately simulating the actual working environment so that users can more conveniently master the gantry crane's electronic control system; in addition, the system can monitor the gantry crane's electronic control system in real time, with reliability and safety.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1A functional schematic diagram of a simulation control system for a portal crane provided by an embodiment of the present invention;

[0021] Figure 2 A circuit diagram of a PLC and a frequency converter in an automatic control module of a simulation control system of a portal crane provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a control panel of a simulation control system of a portal crane provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] To facilitate understanding of this embodiment, Figure 1 A simulation control system of a portal crane disclosed in an embodiment of the present invention is introduced in detail.

[0025] Embodiment 1:

[0026] This embodiment provides a simulation control system for a portal crane, including:

[0027] Crane electronic control module, automatic control module, host computer, input and output module;

[0028] The crane electric control module is connected to the automatic control module in communication, and the automatic control module is connected to the host computer and the input and output module in communication;

[0029] The crane electric control module is provided with a portal crane electric control system, and the portal crane electric control system is used to control the portal crane.

[0030] Preferably, the automatic control module includes a PLC and a frequency converter, and the PLC is respectively connected to the host computer and the input and output modules for communication;

[0031] The automatic control module is used to control the switch operation and running speed of the portal crane through the portal crane electronic control system.

[0032] Among them, PLC is used to realize a large number of frequent switching operations by executing instructions, and can adapt to harsh environmental conditions; the frequency converter is used to adjust the motor speed of the gantry crane using AC frequency conversion technology, thereby realizing precise control of the operating speed of the gantry crane.

[0033] This embodiment provides a circuit diagram of a PLC and a frequency converter in an automatic control module, such as Figure 2 shown.

[0034] Preferably, the input-output module comprises an input unit and an output unit;

[0035] The input unit is used to control the intermediate relay of the portal crane's electric control system;

[0036] The output unit is used to transmit the signal sent by the portal crane electronic control system to the frequency converter.

[0037] Among them, the output unit can realize variable frequency control of the motor by transmitting the signal sent by the portal crane electronic control system to the inverter.

[0038] In this embodiment, the intermediate relay is used to increase the number and capacity of contacts and to transmit intermediate signals. When contacts for signal feedback are not provided in the electrical control system of the gantry crane, the auxiliary normally open / closed contacts of the intermediate relay can be used as false feedback signal points for response input.

[0039] Preferably, the host computer is provided with a monitoring management unit and a simulation test unit;

[0040] The monitoring management unit is used to monitor the operating status of the portal crane's electric control system in real time, and to give an alarm and perform fault diagnosis when the operating status of the portal crane's electric control system is abnormal;

[0041] The simulation test unit is used to simulate the actual operation effect of the portal crane's electronic control system.

[0042] In this embodiment, the actual operating effect is the motor operating state of the portal crane under different operating environments or different load conditions, and the motor operating state includes forward rotation, reverse rotation, start, and stop.

[0043] In this embodiment, monitoring the operating status of the portal crane electric control system includes monitoring the operating parameters of the portal crane electric control system, and the operating parameters include but are not limited to the current, voltage, and operating speed of the portal crane.

[0044] In this embodiment, when the operation state of the portal crane electric control system is abnormal, an alarm and a fault diagnosis are performed, including determining whether the operation state of the portal crane electric control system is abnormal through preset conditions, and if abnormal, an alarm and a fault diagnosis are performed;

[0045] The preset conditions include whether the brake system of the motor is open, whether the detection limit of the brake system is effective, and whether the PLC receives a feedback signal.

[0046] Furthermore, an operable control panel is provided in the simulation test unit, and a plurality of operation buttons are provided on the control panel; the operation buttons are used to control the portal crane electric control system and / or the portal crane.

[0047] In this embodiment, the operation buttons include but are not limited to: a start button, a stop button, an emergency stop button, a forward and reverse button, a first gear button, and a second gear button;

[0048] The start button is used to start the operation of the gantry crane by starting the gantry crane's electronic control system; when the start button is pressed, the contacts close to conduct the circuit, and the equipment or system starts to run.

[0049] The stop button is used to stop the operation of the gantry crane by stopping the gantry crane's electronic control system; when the stop button is pressed, the contacts are disconnected to cut off the circuit, and the gantry crane's electronic control system stops running. Since the stop button is connected in series in the control circuit, the function of stopping the gantry crane is further realized.

[0050] The emergency stop button is used to directly stop the operation of the gantry crane; when the gantry crane's electronic control system fails or an emergency requires immediate stop, pressing the emergency stop button can quickly cut off the power supply of the main circuit, forcing the gantry crane to stop running.

[0051] The forward and reverse buttons are used to control the motor of the gantry crane to switch between forward and reverse directions; when the forward button is pressed, the motor starts to rotate forward; when the reverse button is pressed, the motor switches to reverse rotation.

[0052] The first gear button and the second gear button are used to adjust the motor of the portal crane to different operating speeds.

[0053] This embodiment provides a schematic diagram of a control panel, such as Figure 3 shown. Figure 3 In the control panel, start, stop, emergency stop, forward and reverse, gear 1, and gear 2 correspond to the start button, stop button, emergency stop button, forward and reverse button, first gear button, and second gear button respectively. Users can operate the operation buttons on the control panel to realize the simulated control of the portal crane's electronic control system.

[0054] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A simulation control system for a portal crane, characterized in that: include: Crane electronic control module, automatic control module, host computer, input and output module; The crane electric control module is connected to the automatic control module for communication, and the automatic control module is connected to the host computer and the input / output module for communication respectively; The crane electric control module is provided with a portal crane electric control system, and the portal crane electric control system is used to control the portal crane.

2. The switch quantity adaptive circuit of the secondary equipment of the domestic traction power supply system according to claim 1 is characterized in that: The automatic control module includes a PLC and a frequency converter, and the PLC is respectively connected to the host computer and the input and output module for communication; The automatic control module is used to control the switch operation and running speed of the portal crane through the portal crane electric control system.

3. The switch quantity adaptive circuit of the secondary equipment of the domestic traction power supply system according to claim 1 is characterized in that: The input-output module includes an input unit and an output unit; The input unit is used to control the intermediate relay of the portal crane electric control system; The output unit is used to transmit the signal sent by the portal crane electric control system to the frequency converter.

4. The switch quantity adaptive circuit of the secondary equipment of the domestic traction power supply system according to claim 1 is characterized in that: The host computer is provided with a monitoring management unit and a simulation test unit; The monitoring management unit is used to monitor the operating state of the portal crane electric control system in real time, and to give an alarm and perform fault diagnosis when the operating state of the portal crane electric control system is abnormal; The simulation test unit is used to simulate the actual operation effect of the portal crane electric control system.

5. The switch quantity adaptive circuit of the secondary equipment of the domestic traction power supply system according to claim 4 is characterized in that: The simulation test unit is provided with an operable control panel, and the control panel is provided with a plurality of operation buttons; the operation buttons are used to control the portal crane electric control system and / or the portal crane.

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