A centralized interlocking control device

Abstract

The invention discloses a centralized interlocking control device comprising a centralized control box and four stabilizing vehicles to be centrally controlled, and is characterized in that a programmable logic controller control processing module is fixedly arranged in the box body of the centralized control box, a centralized interlocking signal module, a manual control signal module, a start alarm module and a stabilizing vehicle operation display module are arranged on the box body surface of the centralized control box, the signal output ends of the centralized interlocking signal module and the manual control signal module are respectively connected to the signal input end of the programmable logic controller control processing module, the signal output end of the programmable logic controller control processing module is connected to the signal input end of the signal output module by setting a driving signal power amplifier module, the signal output end of the signal output module is connected to the signal input end of the four stabilizing vehicles, and the signal output end of the driving signal power amplifier module is also respectively connected to the signal input ends of the start alarm module and the stabilizing vehicle operation display module.

Description

Technical Field

[0001] The present invention belongs to the technical field of automatic control, and more specifically, relates to a centralized interlocking control device. Background Art

[0002] In the process of resuming production at Shuoli Mine, it is necessary to dismantle and install the tankway beam and ancillary facilities, and lower the second-level central substation and the large pump room from the new auxiliary shaft to install the required electromechanical equipment. The control equipment is four 45KW slow-speed steady cars, which are distributed in relatively scattered locations. Each is independently controlled. The control method is traditional relay control, which requires multiple control devices and a large number of control cables, and a total of 4 people are required to coordinate the operation. It is difficult to ensure the accuracy of the four steady cars starting in sequence. If the four steady cars happen to start at the same time, the starting current is enough to cause the overcurrent protection of the upper power supply equipment to operate, causing power failure and affecting normal construction. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a centralized interlocking control device, which not only ensures the coordination and continuity of vehicle stabilization actions, but also avoids the consequences of power failure accidents caused by simultaneous starting.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: it includes a centralized control box and four stable cars under central control, and is characterized in that: a programmable logic controller control processing module is fixedly arranged in the box body of the centralized control box, and a centralized interlocking signal module, a manual control signal module, a start alarm module and a stable car operation display module are arranged on the box body surface of the centralized control box, and the signal output ends of the centralized interlocking signal module and the manual control signal module are respectively connected to the signal input end of the programmable logic controller control processing module, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the signal output module by setting a driving signal power amplifier module, and the signal output end of the signal output module is connected to the signal input end of the four stable cars, and the signal output end of the driving signal power amplifier module is also respectively connected to the signal input end of the start alarm module and the stable car operation display module.

[0005] The technical solution provides a centralized interlocking control device, wherein the programmable logic controller control processing module is composed of a programmable logic controller and four intermediate relays, the programmable logic controller is fixed in the centralized control box by setting a rail, the four intermediate relays are fixedly welded in the centralized control box, the signal output end of the programmable logic controller is respectively connected to the signal input end of the driving signal amplifier module through the auxiliary contacts of the four intermediate relays, and the signal input end of the editable logic controller is connected to the signal output end of the centralized interlocking signal module.

[0006] The technical solution provides a centralized interlocking control device, wherein the centralized interlocking signal module is composed of a twisted pair and a limit switch, and the signal output end of the limit switch is connected to the signal input end of the editable logic controller through the twisted pair.

[0007] The technical solution provides a centralized interlocking control device, wherein the manual control signal module consists of a control button and an AD converter, the control button is arranged on the surface of the centralized control box, the AD converter is fixedly arranged in the centralized control box, and the signal output end of the control button is connected to the signal input end of the programmable logic controller control processing module through the AD converter.

[0008] The technical solution provides a centralized interlocking control device, wherein the drive signal amplifier module includes a DA converter and an analog signal amplifying circuit, the signal input ends of the start alarm module and the stable vehicle operation display module are respectively connected to the signal output end pins of the DA converter, the signal output end of the programmable logic controller control processing module is connected to the signal input end of the analog signal amplifying circuit through the DA converter, and the signal output end of the analog signal amplifying circuit is connected to the signal input end of the signal output module.

[0009] The technical solution provides a centralized interlocking control device, wherein the start alarm module is composed of a buzzer and a first liquid crystal display, the first liquid crystal display is installed on the box surface of the centralized control box, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the buzzer and the first liquid crystal display respectively through the drive signal amplifier module.

[0010] The technical solution provides a centralized interlocking control device, wherein the stable vehicle operation display module is a second liquid crystal display screen installed on the surface of the centralized control box body, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the second liquid crystal display screen through the drive signal amplifier module.

[0011] The technical solution provides a centralized interlocking control device, wherein the signal output module is composed of four control cables, and the signal output end of the drive signal amplifier module is respectively connected to the signal input end of the main circuit AC contactor of the four stabilizing vehicles through the four control cables.

[0012] The technical solution provides a centralized interlocking control device, wherein the rated voltage of the control cable is 500V, and the cross-sectional diameter of each control cable is 10mm.

[0013] The technical solution provides a centralized interlocking control device, wherein the electrical signal emitted by the control button is converted into a digital signal by an AD converter and transmitted to the programmable logic controller, the control signal of the programmable logic controller is transmitted to the four stabilizing vehicles through the four intermediate relays, the DA converter and the analog signal amplifying circuit, the main circuit AC contactors of the four stabilizing vehicles receive the control signal of the programmable logic controller through the control cable, and the signal output end of the analog circuit amplifying the signal is further connected to the second LCD display screen displaying the running status of the stabilizing vehicle, the first LCD display screen displaying the cause of the stabilizing vehicle failure and the buzzer for the stabilizing vehicle failure alarm.

[0014] By adopting this technical solution, the distribution box can be made very small and light, and the number of internal electrical components is greatly reduced; the stability of the control circuit is significantly improved, reducing the probability of failure; it saves operating personnel and ensures the reliability of operation; the required electrical components are versatile and interchangeable, and are easy to obtain, effectively reducing the cost of use and maintenance costs; the equipment can automatically alarm and display the fault content after a failure, which makes maintenance simple and greatly shortens the troubleshooting time; it greatly reduces the probability of electrical accidents in the stabilizing vehicle electronic control equipment, as well as the possible injuries to construction workers inside the shaft caused by the accidents; this solution can be widely used in the upgrading and transformation of old electrical equipment, such as centralized control of belt conveyors and scraper conveyors, and acceleration control of large overhead cranes.

[0015] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a brief description of the contents and symbols in the drawings of this specification:

[0017] Figure 1 It is a schematic diagram of the module structure flow of the device of the present invention;

[0018] Figure 2 It is a schematic diagram of the specific structural flow of the module of the present invention; DETAILED DESCRIPTION

[0019] The following, with reference to the accompanying drawings, provides a further detailed description of the specific implementation methods of the present invention, such as the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, the manufacturing process and the operating methods, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0020] Example: Figure 1A centralized interlocking control device shown includes a centralized control box and four stabilizing vehicles that are centrally controlled, and is characterized in that: a programmable logic controller control processing module is fixedly arranged in the box body of the centralized control box, a centralized interlocking signal module, a manual control signal module, a start alarm module and a stabilizing vehicle operation display module are arranged on the box body surface of the centralized control box, the signal output ends of the centralized interlocking signal module and the manual control signal module are respectively connected to the signal input ends of the programmable logic controller control processing module, the signal output end of the programmable logic controller control processing module is connected to the signal input end of the signal output module by setting a driving signal amplifier module, the signal output end of the signal output module is connected to the signal input end of the four stabilizing vehicles, and the signal output end of the driving signal amplifier module is also respectively connected to the signal input ends of the start alarm module and the stabilizing vehicle operation display module.

[0021] The programmable logic controller control processing module consists of a programmable logic controller and four intermediate relays. The programmable logic controller is fixed in the centralized control box by setting a rail, and the four intermediate relays are fixed and welded in the centralized control box. The signal output end of the programmable logic controller is connected to the signal input end of the drive signal amplifier module through the auxiliary contacts of the four intermediate relays, and the signal input end of the editable logic controller is connected to the signal output end of the centralized interlocking signal module.

[0022] The centralized interlocking signal module is composed of a twisted pair wire and a limit switch, and the signal output end of the limit switch is connected to the signal input end of the editable logic controller through the twisted pair wire.

[0023] The manual control signal module consists of a control button and an AD converter. The control button is arranged on the surface of the centralized control box, and the AD converter is fixedly arranged in the centralized control box. The signal output end of the control button is connected to the signal input end of the programmable logic controller control processing module through the AD converter.

[0024] The driving signal amplifier module includes a DA converter and an analog signal amplifying circuit. The signal input ends of the start alarm module and the stable vehicle operation display module are respectively connected to the signal output pins of the DA converter. The signal output end of the programmable logic controller control processing module is connected to the signal input end of the analog signal amplifying circuit through the DA converter. The signal output end of the analog signal amplifying circuit is connected to the signal input end of the signal output module.

[0025] The startup alarm module is composed of a buzzer and a first LCD display. The first LCD display is installed on the box surface of the centralized control box. The signal output end of the programmable logic controller control processing module is connected to the signal input end of the buzzer and the first LCD display respectively through the driving signal amplifier module.

[0026] The stable vehicle operation display module is a second liquid crystal display screen installed on the surface of the centralized control box body, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the second liquid crystal display screen through the driving signal amplifier module.

[0027] The signal output module is composed of four control cables. The signal output end of the driving signal amplifier module is connected to the signal input end of the main circuit AC contactor of the four stabilizing vehicles through the four control cables.

[0028] The rated voltage of the control cable is 500V, and the cross-sectional diameter of each control cable is 10mm.

[0029] Figure 2 The electrical signal emitted by the control button shown is converted into a digital signal by an AD converter and transmitted to the programmable logic controller. The control signal of the programmable logic controller is transmitted to the four stabilizing vehicles through four intermediate relays, a DA converter and an analog signal amplifying circuit. The main circuit AC contactors of the four stabilizing vehicles receive the control signal of the programmable logic controller through a control cable. The signal output end of the analog circuit amplifying the signal is also connected to a second LCD display that displays the operating status of the stabilizing vehicle, a first LCD display that displays the cause of the stabilizing vehicle failure and a buzzer for the stabilizing vehicle failure alarm.

[0030] By adopting this technical solution, the distribution box can be made very small and light, and the number of internal electrical components is greatly reduced; the stability of the control circuit is significantly improved, reducing the probability of failure; it saves operating personnel and ensures the reliability of operation; the required electrical components are versatile and interchangeable, and are easy to obtain, effectively reducing the cost of use and maintenance costs; the equipment can automatically alarm and display the fault content after a failure, which makes maintenance simple and greatly shortens the troubleshooting time; it greatly reduces the probability of electrical accidents in the stabilizing vehicle electronic control equipment, as well as the possible injuries to construction workers inside the shaft caused by the accidents; this solution can be widely used in the upgrading and transformation of old electrical equipment, such as centralized control of belt conveyors and scraper conveyors, and acceleration control of large overhead cranes.

[0031] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A centralized interlocking control device, comprising a centralized control box and four centrally controlled stabilized vehicles, characterized in that: A programmable logic controller control processing module is fixedly arranged in the box body of the centralized control box, and a centralized interlocking signal module, a manual control signal module, a start alarm module and a steady vehicle operation display module are arranged on the box body surface of the centralized control box. The signal output ends of the centralized interlocking signal module and the manual control signal module are respectively connected to the signal input end of the programmable logic controller control processing module, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the signal output module by setting a driving signal amplifier module, and the signal output end of the signal output module is connected to the signal input end of the four steady vehicles, and the signal output end of the driving signal amplifier module is also respectively connected to the signal input end of the start alarm module and the steady vehicle operation display module; wherein, the programmable logic controller control processing module is composed of a programmable logic controller and four intermediate relays, the programmable logic controller is fixed in the centralized control box by setting a card rail, the four intermediate relays are fixedly welded in the centralized control box, and the signal output end of the programmable logic controller is respectively connected to the drive signal amplifier module through the auxiliary contacts of the four intermediate relays The signal input end of the manual control signal amplifier module is connected, and the signal input end of the editable logic controller is connected to the signal output end of the centralized interlocking signal module; the centralized interlocking signal module is composed of a twisted pair and a limit switch, and the signal output end of the limit switch is connected to the signal input end of the editable logic controller through a twisted pair; the manual control signal module is composed of a control button and an AD converter, the control button is arranged on the surface of the centralized control box, the AD converter is fixedly arranged in the centralized control box, and the signal output end of the control button is connected to the signal input end of the programmable logic controller control processing module through the AD converter; the drive signal amplifier module includes a DA converter and an analog signal amplifying circuit, the signal input ends of the start alarm module and the stable vehicle operation display module are respectively connected to the signal output end pins of the DA converter, the signal output end of the programmable logic controller control processing module is connected to the signal input end of the analog signal amplifying circuit through the DA converter, and the signal output end of the analog signal amplifying circuit is connected to the signal input end of the signal output module.

2. A centralized interlocking control device according to claim 1, characterized in that: The start-up alarm module is composed of a buzzer and a first liquid crystal display screen, the first liquid crystal display screen is installed on the box surface of the centralized control box, and the signal output end of the programmable logic controller control processing module is connected to the signal input ends of the buzzer and the first liquid crystal display screen respectively through the drive signal amplifier module.

3. A centralized interlocking control device according to claim 1, characterized in that: The stable vehicle operation display module is a second liquid crystal display screen installed on the surface of the centralized control box body, and the signal output end of the programmable logic controller control processing module is connected to the signal input end of the second liquid crystal display screen through the drive signal amplifier module.

4. A centralized interlocking control device according to claim 1, characterized in that: The signal output module is composed of four control cables, and the signal output end of the drive signal amplifier module is connected to the signal input end of the main circuit AC contactor of the four stabilizing vehicles through the four control cables.

5. A centralized interlocking control device according to claim 1, characterized in that: The rated voltage of the control cable is 500V, and the cross-sectional diameter of each control cable is 10mm.

6. A centralized interlocking control method, comprising a centralized interlocking control device according to any one of claims 1 to 5, characterized in that: The electrical signal emitted by the control button is converted into a digital signal through an AD converter and transmitted to the programmable logic controller. The control signal of the programmable logic controller is transmitted to the four stabilizing vehicles through the four intermediate relays, the DA converter and the analog signal amplifying circuit. The main circuit AC contactors of the four stabilizing vehicles receive the control signal of the programmable logic controller through the control cable. The signal output end of the analog signal amplifying circuit is also connected to a second LCD display screen that displays the operating status of the stabilizing vehicle, a first LCD display screen that displays the cause of the stabilizing vehicle failure and a buzzer for the stabilizing vehicle failure alarm.

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