Nondestructive testing platform for comprehensively diagnosing electric control system and components of mining heading machine

Abstract

The invention belongs to the technical field of electric control systems of mining heading machines, and provides a nondestructive testing platform for comprehensively diagnosing an electric control system and components of a mining heading machine in order to solve the problem of low detection efficiency of current electric components, which comprises a testing platform main body frame, an operation display panel, a quick connection interface and a function simulation module, integrated performance and function detection can be carried out on an electronic control system of the whole heading machine, new and old components (including repair parts) and embedded software, more than 60 types of key components such as a main controller, a PLC, a relay board and an intrinsic safety power panel are covered, the reliability of the components under the real working condition is accurately verified through closed-loop signal simulation (lamplight / gas / sudden stop / motor / electric leakage lockout and the like), and the reliability of the components under the real working condition is accurately verified. Furthermore, quick disassembly and assembly are realized through a quick disassembly interface, so that the efficiency is improved compared with the traditional factory return detection; and meanwhile, through acousto-optic dual-mode feedback, manual misjudgment is avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of electrical control systems for mining tunneling machines, and specifically discloses a non-destructive testing platform for comprehensive diagnosis of electrical control systems and components of mining tunneling machines. Background Technology

[0002] Currently, in the field of mine roadway excavation, tunneling machines and other equipment are increasingly being used. Tunneling machines are used for excavating coal roadways, semi-coal-rock roadways, or rock roadways, with an economical cutting hardness f≤9. They are suitable for excavating coal mine preparation roadways with various types of floor plates and slopes of ±18°, and can also be used for tunnel construction in railways, highways, and hydraulic engineering projects. Whether it is routine maintenance by the mine or a major overhaul after the scheduled maintenance period, the parts on the tunneling machine, including electrical components, need to be inspected to determine whether repair or replacement is necessary. Especially after long-term use, even if the parts have no obvious external damage and their functions are basically normal, it is difficult to ensure that their performance still meets the requirements. Without proper inspection, malfunctions are inevitable during use, and once a malfunction occurs, it will seriously affect the stable operation of the equipment and the progress of the work. Summary of the Invention

[0003] In order to solve at least one of the above-mentioned technical problems in the prior art, the present invention provides a non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of mining tunneling machines.

[0004] This invention is achieved using the following technical solution: a non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine, comprising: a main frame of the testing platform, an operation display panel, a quick connection interface, and a functional simulation module; The main frame of the testing platform consists of a circuit board, a power module, a display screen, a circuit breaker, and electrical components for simulating the electrical control system of a mining tunneling machine. The bottom of the main frame of the testing platform is equipped with wheels and a braking device. The main frame of the testing platform is powered by an external 220V power supply. The operation display panel is located on the sloping surface at the top of the main body of the detection platform and integrates indicator lights, switches, potentiometers and selector switches; The quick-connect interface includes a 23-pin straight plug, a 35-pin straight plug, and a terminal block, which is used to connect the component to be tested and connect the component to be tested to the corresponding electrical accessories of the main body of the testing platform. The functional simulation module is used to simulate the working conditions of the electrical components of the main frame of the testing platform and to detect component faults under the simulated working conditions. After the component to be tested is inserted into the corresponding electrical component, the functional simulation module simulates the corresponding signal. When the component to be tested is normal, the display screen of the testing platform shows that the function is normal; otherwise, it shows that the function is abnormal.

[0005] Preferably, the overall dimensions of the main frame of the testing platform are 650mm in length, 600mm in width, and 1300mm in height, and the slope of the top of the main body of the testing platform is set to tilt backward at 15°.

[0006] Preferably, the components to be tested include at least the tunneling machine control host, PLC, intrinsically safe power board, lighting, and emergency stop button; the tunneling machine control host includes a circuit board, an electrical control box display, and a tunneling machine protection module, and the tunneling machine control host is connected to the operation panel of the main frame of the testing platform via signal lines.

[0007] Preferably, the main frame of the testing platform adopts a double-door design, with an electrical control box composed of electrical components installed on the front and the functional simulation module for performing working condition simulation installed on the back. A detachable quick-connect interface is provided on the outside.

[0008] Preferably, the lighting and emergency stop button are connected to the main frame of the testing platform via quick-connect connectors.

[0009] Preferably, the functional simulation module is used to reproduce the operating environment of the tunneling machine's electrical control system through a relay board, a voltage board, and a main controller.

[0010] Compared with the prior art, the beneficial effects of the present invention are: This invention presents a non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of mining tunneling machines. It enables integrated performance and functional testing of the entire machine's electrical control system, new and used components (including repaired parts), and embedded software. The platform covers over 60 categories of key components, including the main controller, PLC, relay boards, and intrinsically safe power supply boards. Through closed-loop signal simulation (lighting / gas / emergency stop / motor / leakage interlocking, etc.), it accurately verifies the reliability of components under real-world operating conditions. Furthermore, quick-release interfaces enable rapid disassembly and assembly, improving efficiency compared to traditional factory return testing. Simultaneously, dual-mode audio-visual feedback avoids human error and improves testing accuracy. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the non-destructive testing platform provided in an embodiment of the present invention; Figure 2 This is a power supply schematic diagram of the detection platform provided in an embodiment of the present invention. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should fall within the scope of the technical content disclosed in the present invention. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0015] like Figure 1 , Figure 2 As shown, a non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine includes: a main frame of the testing platform, an operation display panel, a quick connection interface, and a functional simulation module; The main frame of the testing platform consists of a circuit board, a power module, a display screen, a circuit breaker, and electrical components for simulating the electrical control system of a mining tunneling machine. The bottom of the main frame of the testing platform is equipped with wheels and a braking device. The main frame of the testing platform is powered by an external 220V power supply. The operation display panel is located on the sloping surface at the top of the main body of the detection platform and integrates indicator lights, switches, potentiometers and selector switches; The quick-connect interface includes a 23-pin straight plug, a 35-pin straight plug, and a terminal block, which is used to connect the component to be tested and connect the component to be tested to the corresponding electrical accessories of the main body of the testing platform. The functional simulation module is used to simulate the working conditions of the electrical components of the main frame of the testing platform and to detect component faults under the simulated working conditions. After the component to be tested is inserted into the corresponding electrical component, the functional simulation module simulates the corresponding signal. When the component to be tested is normal, the display screen of the testing platform shows that the function is normal; otherwise, it shows that the function is abnormal.

[0016] In this embodiment, the main frame of the detection platform has built-in power modules with multiple voltage levels, including AC220V, AC127V, and AC36V, providing stable and reliable power support for circuit equipment such as lighting, signal lights, alarm devices, and gas power cut-off devices; the control host is responsible for receiving and processing various control signals, and can protect each connected circuit from overload, short circuit, and other faults; the display and alarm section includes a display screen, signal lights, and an audible and visual alarm device, used to provide real-time feedback on the system status and issue timely alarms when faults occur; the main frame of the detection platform is equipped with Multiple self-resetting and self-locking switches are included, such as oil pump start / stop switch SA1, cutting start / stop switch SA2, transfer start / stop switch SA3, load high / load low switch SA4, dust collector 1 start / stop switch SA6, dust collector 2 start / stop switch SA7, alarm bell backup switch SA8, query page-turning switch SA9, reset switch SA11, control box emergency stop switch SA13, and remote control backup switch SA12. Among them, the load high / load low switch, control box emergency stop switch, and remote control backup switch are self-locking switches, while the rest are self-resetting switches. It also includes controller switching switch SA5 and control box switching switch SA10.

[0017] In this embodiment, the connector X3 built into the tunneling machine control host is connected to the operation panel in the main frame of the detection platform. The power interface on the operation panel is connected to pins 28 and 29 of the tunneling machine control host; the communication interface on the operation panel is connected to the CA and CB pins of the tunneling machine control host; the COM common terminal is connected to pin 30 of the tunneling machine control host; the NO1 remote control operation terminal and the NO2 system reset terminal are connected to pins 31 and 32 of the tunneling machine control host, respectively; and the NC1 emergency stop terminal is connected to pin 33 of the tunneling machine control host.

[0018] In this embodiment, the tunneling machine control host is connected to the external components to be tested via connector X4. Pins X4.5-X4.11 of connector X4 are connected to the external power supply module powering the lighting, signal lights, alarm devices, and gas cut-off device. Pins X4.22-X4.26 of connector X4 are connected to the external components to be tested, namely the gas interlock, left emergency stop, right emergency stop, and rear emergency stop, forming a closed-loop circuit. When the corresponding component to be tested is functioning normally, pressing the corresponding test button will illuminate the indicator light of the corresponding circuit; otherwise, the indicator light will turn off. Pins X4.27-X4.31 of connector X4 are connected to the signal terminals of the external audible and visual alarm device.

[0019] In this embodiment, the tunneling machine control host also includes a power supply terminal. Terminals A1 and A2 are connected to an external AC 220V power supply and are also connected to signal lights; terminals A3 and A4 are connected to an external AC 127V power supply and are also connected to signal lights; terminals A5 and A6 are connected to an external AC 220V power supply and are also connected to signal lights; terminal A10 is connected to the alarm device power control box, with a voltage standard of AC 36V; terminal A11 is connected to the gas cut-off device power control box, with a voltage standard of AC 36V; and terminals A12 and A13 are connected to a DC 24V external power supply. Connect source 1 and the indicator light simultaneously. Connect terminal A12 to the positive terminal of the power supply and terminal A13 to the negative terminal of the power supply. Connect terminals A14 and A15 to external DC24V power supply 2 and the indicator light simultaneously. Connect terminal A14 to the positive terminal of the power supply and terminal A15 to the negative terminal of the power supply. Connect terminal A16 to the shunt coil. Connect terminals B1-B4 to the display of the control box. Receive the voltage transmitter signal from the voltage transmitter at terminal B7. Connect terminals C1 and C2 to the leakage current interlocking short-circuit terminal. Connect terminals C3-C6 to the overheat protection short-circuit terminal. Connect terminals C7-C9 to the leakage current monitoring short-circuit terminal.

[0020] In this embodiment, the main body of the detection platform covers multiple voltage levels, including AC220V, AC127V, and AC36V, providing stable and reliable power support for the system. Specifically, the AC220V input serves as the main power input, connected to the system via a circuit breaker (such as QF1 / 6L); the AC127V and AC36V inputs serve as auxiliary power inputs, connected to the main circuit via transformers or conversion devices; and DC24V power supply 1 and DC24V power supply 2 supply power to low-voltage equipment such as control circuits and sensors, increasing system reliability and redundancy.

[0021] In this embodiment, the tunneling machine control host is responsible for receiving and processing various control signals, receiving signals from control buttons, switches and sensors, and controlling the actuators after logic processing; it also has overload and short circuit protection functions to ensure the safe operation of the system; it is powered by DC24V power supply 1 and power supply 2, and is connected to other circuit components through connectors (such as X3, X4).

[0022] In this embodiment, the display screen is powered by a DC24V power supply and is used to display the operating status and fault information of the non-destructive testing platform. It is connected to the tunneling machine control host through a communication line to receive and display data sent by the tunneling machine control host in real time.

[0023] In this embodiment, the alarm device includes an audible and visual alarm, which is controlled by the tunneling machine control host. When the non-destructive testing platform malfunctions or fails, the control host sends an alarm signal, triggering the alarm device to issue an alarm and reminding the operator to handle the situation promptly.

[0024] In this embodiment, indicator lights are connected to the AC220V input, AC127V input, AC36V input, and DC24V power supply circuits to visually indicate whether the circuit is intact. If the circuit is normal, the corresponding indicator light will illuminate.

[0025] In this embodiment, the gas power-off device serves as an external safety device, connected to the system via a specific interface. When an excessive gas concentration is detected, the gas power-off device sends a signal to the tunneling machine control host, triggering the system's safety protection mechanism.

[0026] In this embodiment, the component under test is connected to the non-destructive testing platform via a 23-pin straight connector, a 35-pin straight connector, and terminal blocks. When testing the control host of the tunneling machine, the non-destructive testing platform can simulate different signals such as lights, gas, emergency stop, oil pump motor, cutting motor, and leakage lockout. If the component under test is a normal part, the display screen will show that the function is normal. If the component under test is a normal control host, the switch is toggled, and the non-destructive testing platform simulates the corresponding signal, the corresponding indicator light illuminates, and the display screen shows that the function is normal.

[0027] This invention provides a non-destructive testing platform for the comprehensive diagnosis of the electrical control system and components of a mining tunneling machine. By studying the principles and performance testing methods of electrical components (main controller, PLC program, relay board, intrinsically safe power supply board, voltage board), lighting, emergency stop buttons, current transmitters, electrical control boxes, control boxes, and operation boxes of the tunneling machine's electrical control system, it maximizes the utilization of old components and improves the efficiency of fault diagnosis in the tunneling machine's electrical control system. Simultaneously, it rationally arranges the various components that make up the non-destructive testing platform, such as the main controller, display screen, fault indicator, transformer, fuse, and power supply, fully considering the compatibility of each component. This results in a compact testing platform structure, minimal space occupation, and easy mobility. The testing platform and the tested components are quickly disassembled and connected via 23-pin straight connectors, 35-pin straight connectors, and terminal blocks, achieving rapid disassembly and connection and improving testing efficiency.

[0028] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine, characterized in that, include: The main framework of the testing platform, the operation display panel, the quick connection interface, and the function simulation module; The main frame of the testing platform consists of a circuit board, a power module, a display screen, and electrical components for simulating the electrical control system of a mining tunneling machine. The bottom of the main frame of the testing platform is equipped with wheels and a braking device. The main frame of the testing platform is powered by an external 220V power supply. The operation display panel is located on the sloping surface at the top of the main body of the detection platform and integrates indicator lights, switches, potentiometers and selector switches; The quick-connect interface includes a 23-pin straight plug, a 35-pin straight plug, and a terminal block, which is used to connect the component to be tested and connect the component to be tested to the corresponding electrical accessories of the main body of the testing platform. The functional simulation module is used to simulate the working conditions of the electrical components of the main frame of the testing platform and to detect component faults under the simulated working conditions. After the component to be tested is inserted into the corresponding electrical component, the functional simulation module simulates the corresponding signal. When the component to be tested is normal, the display screen of the main frame of the testing platform displays normally; otherwise, the display screen displays abnormally.

2. The non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine according to claim 1, characterized in that, The overall dimensions of the main frame of the testing platform are 650mm in length, 600mm in width, and 1300mm in height, and the slope of the top of the main body of the testing platform is set to tilt backward at 15°.

3. The non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine according to claim 1, characterized in that, The components to be tested include at least a tunneling machine control host, a PLC, an intrinsically safe power board, a lighting lamp, and an emergency stop button; the tunneling machine control host includes a circuit board, an electrical control box display, and a tunneling machine protection module, and the tunneling machine control host is connected to the operation panel of the main frame of the testing platform via signal lines.

4. The non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine according to claim 1, characterized in that, The main frame of the testing platform adopts a double-door design. The front is equipped with an electrical control box consisting of electrical components, and the back is equipped with the functional simulation module for simulating working conditions. The exterior is equipped with a detachable quick-connect interface.

5. The non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine according to claim 3, characterized in that, The lighting and emergency stop button are connected to the main frame of the testing platform via quick-connect connectors.

6. The non-destructive testing platform for comprehensive diagnosis of the electrical control system and components of a mining tunneling machine according to claim 1, characterized in that, The functional simulation module, through a relay board, voltage board, and main controller, is used to reproduce the operating environment of the tunneling machine's electrical control system.

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