Integrated electric control system and mine rope sawing machine

Abstract

The utility model discloses an integrated electric control system and a mine wire saw, the integrated electric control system comprises a power supply, an integrated controller and an operating platform, the power supply is electrically connected with the integrated controller, the operating platform is electrically connected with the integrated controller, and the integrated controller is electrically connected with the operating platform. The integrated controller comprises a main control chip, a 75kW main frequency converter, a 1.5 kW turntable motor frequency converter, a 1.5 kW translation motor frequency converter and a 1.5 kW walking frequency converter; driving and control parts of the 75kW main frequency converter, the 1.5 kW turntable motor frequency converter, the 1.5 kW translation motor frequency converter and the 1.5 kW walking frequency converter are respectively integrated; and the main control chip is provided with four U / V / W ports for integrating four types of frequency converter information into the main control chip. According to the utility model, a module integration design scheme is adopted, and integration development is carried out from an electric control bottom layer through a high coupling process, so that reliable performance, convenience in use, simplicity in maintenance, cost reduction and efficiency improvement are realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of stone machinery, and particularly relates to an integrated electric control system and a mine rope saw machine. Background Art

[0002] After more than ten years of promotion and application, there are more and more manufacturers of mining wire saws, the competition is becoming more and more fierce, and the product homogeneity is becoming more and more serious. At present, the control system of mining wire saws has been basically finalized after years of optimization and improvement, and the control mode is also similar. Different manufacturers only differ in configuration selection (PLC, inverter, etc.). If we continue to optimize only in configuration and brand, the space for performance improvement and cost reduction is limited and unsustainable, and homogeneity is more serious.

[0003] The Chinese patent with the publication number CN112497514B discloses an intelligent wire saw machine, including a power drive device for driving the wire saw to rotate to cut the object to be cut, and a tensioning device for tensioning the power drive device; the power drive device includes an active rotating part for driving the wire saw to rotate, a guide rotating part for guiding the wire saw, and a power drive part for driving the active rotating part to rotate; the tensioning device includes an adjusting device for adjusting the tension of the wire saw by the guide rotating part. The wire saw machine proposed in the invention does not adopt an integrated control structure, and there is a problem of communication delay between the electrical components. At the same time, the system uses multiple controllers, which increases maintenance costs and makes troubleshooting difficult.

[0004] The Chinese patent with publication number CN209381145U discloses an electrical control system for a diamond bead wire saw machine, wherein an electronic handwheel assembly is connected to a controller, a frequency conversion control mechanism and a servo control mechanism are connected to a programmable controller, and the programmable controller processes the input signal of the electronic handwheel assembly and converts it into a pulse frequency source, which is transmitted to the frequency conversion control mechanism and the servo control mechanism; and a PLC multi-speed operation program is loaded in the programmable controller; at the same time, a dead zone protection program and the end of the machine sawing end stage - automatic judgment, identification, adjustment, correction, and compensation program are introduced in the programmable controller. This utility model cannot realize remote control and monitoring functions. Utility Model Content

[0005] The utility model provides an integrated electric control system and a mining rope saw machine, aiming to adopt a modular integrated design scheme, and carry out integrated development from the bottom layer of the electric control through a highly coupled process, so as to achieve reliable performance, convenient use, simple maintenance, and cost reduction and efficiency improvement.

[0006] In order to solve the above technical problems, the utility model proposes an integrated electric control system, including a power supply, an integrated controller and an operating table, the power supply is electrically connected to the integrated controller, the operating table is electrically connected to the integrated controller, the integrated controller includes a main control chip, a 75kW main frequency conversion, a 1.5kW turntable motor frequency conversion, a 1.5kW translation motor frequency conversion and a 1.5kW walking frequency conversion, and the driving and control parts of the 75kW main frequency conversion, the 1.5kW turntable motor frequency conversion, the 1.5kW translation motor frequency conversion and the 1.5kW walking frequency conversion are integrated respectively.

[0007] The main control chip is provided with four U / V / W ports to integrate four types of inverter information into the main control chip. The first U / V / W port is electrically connected to the 75kW main frequency converter, the second U / V / W port is electrically connected to the 1.5kW turntable motor frequency converter, the third U / V / W port is electrically connected to the 1.5kW translation motor frequency converter, and the fourth U / V / W port is electrically connected to the 1.5kW walking frequency converter.

[0008] Preferably, the 75kW main frequency converter, 1.5kW turntable motor frequency converter, 1.5kW translation motor frequency converter and 1.5kW walking frequency converter are provided with semiconductor switches IGBT, which adjust the output power supply voltage and frequency by opening and closing the internal IGBT, and provide the required power supply voltage according to the actual needs of the motor.

[0009] Preferably, the operating console includes a PLC and an HMI, the PLC is electrically connected to the HMI based on the RS485 standard, the PLC is used to obtain inverter status parameters and implement inverter control, and the HMI is used to monitor the operating status of the inverter in real time.

[0010] Preferably, the operating console also includes a remote expansion module, which is electrically connected to the PLC based on the CANopen protocol, and is used to input a switch signal for controlling the action of the mining equipment, and transmit the switch signal to the PLC through the CANopen protocol to realize the control of the mining equipment.

[0011] Preferably, the remote expansion module includes a 22-channel low-speed digital input module, a 12-channel digital output module, a 2-channel analog input module, a 2-channel analog output module, a power supply module, and a CAN communication module; wherein the 22-channel low-speed digital input module is used for signal input of the selection switch on the operating table, the 12-channel digital output module is used for digital signal output, the 2-channel analog input module is used for signal input of the potentiometer on the operating table, the 2-channel analog output module is used for analog signal output, the power supply module is used to provide 24V power supply, and the CAN communication module is used to connect to the PLC via the CANopen protocol.

[0012] Preferably, the operating console also includes an Internet of Things module, which is installed on the HMI and is used to collect real-time information on mining equipment that needs to be monitored, connected, and interacted with, so as to achieve remote monitoring.

[0013] On the other hand, the utility model provides a mining wire saw machine, wherein the mining wire saw machine comprises an integrated electric control system as described in any embodiment of the utility model.

[0014] Compared with the prior art, the utility model has the following technical effects:

[0015] 1. The utility model adopts an integrated control architecture to realize the integrated control of main frequency conversion, turntable motor frequency conversion, translation motor frequency conversion, travel frequency conversion and PLC, and adopts common DC bus technology for energy interaction, which saves energy and electricity. Compared with traditional independent frequency conversion, it has fewer system components and saves installation space; multi-core chips realize the application of multi-axis drive in the integrated electric control system of mining rope saw machines, which saves production costs, is easy to repair and replace, has strong practicality and good use effect.

[0016] 2. Compared with the existing 75YZF control system, the utility model significantly reduces the cost of electrical components and electric control boxes by 10%, while improving installation efficiency and reducing labor costs.

[0017] 3. The utility model adopts modular, integrated and rationalized design scheme, mature and precise manufacturing technology to ensure product performance and process stability, wire harness sleeve and plug-in design, considering the convenience of assembly, debugging and maintenance from the front end of the design, ensuring the reliability of product production and manufacturing, and achieving quality assurance from product scheme design to product production and manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an integrated electric control system described in the utility model;

[0019] Figure 2 It is a schematic diagram of a mining rope saw machine described in the utility model.

[0020] Figure numerals: 1. power supply; 2. integrated controller; 21. main control chip; 22. 75kW main frequency conversion; 23. 1.5kW turntable motor frequency conversion; 24. 1.5kW translation motor frequency conversion; 25. 1.5kW travel frequency conversion; 3. operating table; 31. PLC; 32. HMI; 33. remote expansion module; 34. Internet of Things module; 4. mining rope saw machine; 41. power head mechanism; 5. guide rail. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the application and with reference to the accompanying drawings.

[0022] Embodiment 1

[0023] See also Figure 1 As shown, the utility model provides an integrated electric control system which integrates main frequency conversion, turntable motor frequency conversion, translation motor frequency conversion, travel frequency conversion and PLC control, and is based on the data transmission advantage of high-speed bus control, including a power supply 1, an integrated controller 2 and an operating table 3, wherein the power supply 1 is electrically connected to the integrated controller 2 via an R / S / T terminal, and the operating table 3 is electrically connected to the integrated controller 2.

[0024] The frequency converter is an electric power control device that uses frequency conversion technology and microelectronic technology to control the AC motor by changing the frequency of the motor's working power supply. Its working principle is to convert the voltage and frequency of the AC power supply into an adjustable AC power supply, and adjust the output voltage and frequency through the control circuit to achieve speed regulation and control of the motor. It consists of four parts: a rectifier unit, a high-capacity capacitor, an inverter, and a controller. The integrated controller 2 includes a main control chip 21, a 75kW main frequency converter 22, a 1.5kW turntable motor frequency converter 23, a 1.5kW translation motor frequency converter 24, and a 1.5kW walking frequency converter 25. The drive and control parts of the 75kW main frequency converter 22, the 1.5kW turntable motor frequency converter 23, the 1.5kW translation motor frequency converter 24, and the 1.5kW walking frequency converter 25 are integrated separately. The frequency converter is designed with the application of the rope saw machine in mind, and has a stronger short-term overload capacity and a higher peak output torque.

[0025] The main control chip 21 is provided with four U / V / W ports to integrate four types of inverter information into the main control chip 21. The first U / V / W port is electrically connected to the 75kW main frequency converter 22, the second U / V / W port is electrically connected to the 1.5kW turntable motor frequency converter 23, the third U / V / W port is electrically connected to the 1.5kW translation motor frequency converter 24, and the fourth U / V / W port is electrically connected to the 1.5kW walking frequency converter 25.

[0026] As a preferred implementation scheme of this embodiment, the 75kW main frequency converter 22, 1.5kW turntable motor frequency converter 23, 1.5kW translation motor frequency converter 24 and 1.5kW travel frequency converter 25 are provided with semiconductor switches IGBT, which adjust the voltage and frequency of the output power supply by opening and closing the internal IGBT, and provide the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of speed regulation.

[0027] As a preferred implementation of this embodiment, the operating console 3 includes PLC31 and HMI32. PLC31 is electrically connected to HMI32 based on the RS485 standard. The PLC31 is used to obtain the inverter state parameters and realize the inverter control. The HMI32 is used to monitor the operating status of the inverter in real time, which is convenient for early warning and fault location. Specifically, the integrated controller 2 communicates with the operating console 3 through the CAN bus to realize the signal interaction between the inverter and PLC, saving the power distribution workload and power distribution cost. The operating console 3 integrates HMI32 and PLC31 to realize the protection and power distribution of the operating console. And the touch screen is used instead of text, the interface is friendly, the control is simple, and the status parameter display is intuitive.

[0028] As a preferred implementation of this embodiment, the 1.5kW walking frequency conversion 25 is also connected to the main control chip through an encoder, using an asynchronous servo motor, and implementing the PID control algorithm through PLC31, that is, three types of feedback control: proportional-integral-differential. It has a stable constant power retention capability and is suitable for applications with weak magnetic torque characteristics. It ensures constant torque cutting output at low frequency, constant power operation during rapid transition, and the rapid walking speed is increased from 150m / h to 500m / h. Specifically, the target current value can be set through the HMI, and the walking motor stabilizes the current to about the target current value by adjusting the walking speed, ensuring that the low frequency is a constant torque cutting output; during rapid transition, the walking motor runs at a constant power at the maximum set frequency.

[0029] As a preferred implementation of this embodiment, the operating console 3 also includes a remote expansion module 33, which is electrically connected to the PLC 31 based on the CANopen protocol, and is used to input a switch signal for controlling the action of the mining equipment, and transmit the switch signal to the PLC 31 through the CANopen protocol to realize the control of the mining equipment. Using the CANopen protocol communication can reduce the demand for wiring and electrical components, save power distribution costs, and reduce the hidden dangers of failure caused by dragging wires.

[0030] As a preferred implementation scheme of this embodiment, the remote expansion module 33 includes a 22-way low-speed digital input module, a 12-way digital output module, a 2-way analog input module, a 2-way analog output module, a power supply module, and a CAN communication module; wherein the 22-way low-speed digital input module is used for the signal input of the selection switch on the operating console 3, the 12-way digital output module is used for digital signal output, the 2-way analog input module is used for the signal input of the potentiometer on the operating console 3, the 2-way analog output module is used for analog signal output, the power supply module is used to provide a 24V power supply, and the CAN communication module is used to connect to PLC31 via the CANopen protocol.

[0031] As a preferred implementation of this embodiment, the operating console 3 also includes an Internet of Things module 34, which is installed on the HMI 32 and is used to collect any mining equipment information that needs to be monitored, connected, and interacted in real time to achieve remote monitoring.

[0032] Embodiment 2

[0033] This embodiment provides a mining wire saw machine, the mining wire saw machine includes an integrated electric control system as described in any embodiment of the utility model, referring to Figure 2 As shown, the mining wire saw machine 4 also includes a power head mechanism 41, and moves along the guide rail 5. Specifically, the turntable motor controls the power head mechanism 41 to rotate in the vertical direction, so that the mining wire saw machine 4 can cut the vertical surface and the bottom surface, the translation motor can control the power head mechanism 41 to rise and fall in the vertical direction, and the travel motor controls the mining wire saw machine 4 to travel.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. An integrated electric control system, comprising a power supply (1), an integrated controller (2) and an operating console (3), wherein the power supply (1) is electrically connected to the integrated controller (2), and is characterized in that: The operating table (3) is electrically connected to the integrated controller (2), and the integrated controller (2) comprises a main control chip (21), a 75kW main frequency conversion (22), a 1.5kW turntable motor frequency conversion (23), a 1.5kW translation motor frequency conversion (24), and a 1.5kW walking frequency conversion (25), and the driving and control parts of the 75kW main frequency conversion (22), the 1.5kW turntable motor frequency conversion (23), the 1.5kW translation motor frequency conversion (24), and the 1.5kW walking frequency conversion (25) are integrated respectively; The main control chip (21) is provided with four U / V / W ports to integrate four types of inverter information into the main control chip (21), the first U / V / W port is electrically connected to the 75kW main inverter (22), the second U / V / W port is electrically connected to the 1.5kW turntable motor inverter (23), the third U / V / W port is electrically connected to the 1.5kW translation motor inverter (24), and the fourth U / V / W port is electrically connected to the 1.5kW travel inverter (25).

2. An integrated electronic control system according to claim 1, characterized in that: The 75kW main frequency converter (22), the 1.5kW turntable motor frequency converter (23), the 1.5kW translation motor frequency converter (24) and the 1.5kW travel frequency converter (25) are provided with semiconductor switches IGBT, and the voltage and frequency of the output power supply are adjusted by opening and closing the internal IGBT, so as to provide the power supply voltage required by the motor according to its actual needs.

3. The integrated electronic control system according to claim 1, characterized in that: The operating console (3) comprises a PLC (31) and an HMI (32), wherein the PLC (31) is electrically connected to the HMI (32) based on the RS485 standard, the PLC (31) is used to obtain inverter state parameters and implement inverter control, and the HMI (32) is used to monitor the operating state of the inverter in real time.

4. The integrated electronic control system according to claim 3, characterized in that: The operating console (3) further comprises a remote expansion module (33), wherein the remote expansion module (33) is electrically connected to the PLC (31) based on the CANopen protocol, and is used for inputting a switch signal for controlling the operation of the mining equipment, and transmitting the switch signal to the PLC (31) through the CANopen protocol to realize the control of the mining equipment.

5. The integrated electronic control system according to claim 4, characterized in that: The remote expansion module (33) comprises a 22-channel low-speed digital input module, a 12-channel digital output module, a 2-channel analog input module, a 2-channel analog output module, a power supply module, and a CAN communication module; wherein the 22-channel low-speed digital input module is used for inputting signals from a selection switch on the operating console (3), the 12-channel digital output module is used for outputting digital signals, the 2-channel analog input module is used for inputting signals from a potentiometer on the operating console (3), the 2-channel analog output module is used for outputting analog signals, the power supply module is used for providing a 24V power supply, and the CAN communication module is used for connecting to the PLC (31) via the CANopen protocol.

6. The integrated electronic control system according to claim 3, characterized in that: The operating console (3) further comprises an Internet of Things module (34), which is installed on the HMI (32) and is used for real-time collection of mining equipment information that needs to be monitored, connected and interacted with, so as to realize remote monitoring.

7. A mining wire saw machine, characterized in that: The mining wire saw machine comprises an integrated electric control system as claimed in any one of claims 1 to 6.

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