Intelligent electric control system of coal mining machine

Abstract

The utility model discloses an intelligentization coal -winning machine electric control system, electric control system includes coal -winning machine controller and with coal -winning machine controller communication connection's coal -winning machine position and attitude detection system, coal -winning machine operating condition detection system, coal -winning machine working environment monitoring system, coal -winning machine action mechanism system, coal -winning machine operating system. The coal -winning machine position and attitude detection system includes setting on the left and right angle sensor of coal -winning machine rocker arm, setting in the rotation encoder of coal -winning machine walking part, setting on the left and right limit detection of coal -winning machine rocker arm, and setting on the fuselage angle sensor and infrared position sensor of coal -winning machine electric control box. The utility model discloses an intelligentization coal -winning machine electric control system can realize the automation control, according to the control program of predetermining, the independent start -stop control each motor, completes the cutting coal and collects coal traction cycle operation, thereby improves the work efficiency, and can be human intervention interruption at any time, prevents the accident caused by the emergency.

Description

Technical Field

[0001] This utility model relates to the field of coal mining equipment technology, specifically to an intelligent coal mining machine electrical control system. Background Technology

[0002] The coal mining machine electrical control system is an integrated electronic system that controls and monitors the operation of a coal mining machine. It consists of multiple modules, including data acquisition and processing, control algorithms and equipment protection functions, but does not have position and attitude detection, coal cutting memory, remote operation and monitoring functions.

[0003] The coal mining machine's electrical control system has several drawbacks: 1. It relies on manual operation, resulting in low coal mining efficiency; 2. It requires a large number of workers at the coal mining face, leading to high labor costs. Furthermore, coal mining is a high-risk operation, posing significant risks to workers; 3. The coal mining machine has a high failure rate, impacting production progress. Utility Model Content

[0004] The technical problems to be solved by this utility model are: the coal mining machine electrical control system relies on manual operation, resulting in low coal mining efficiency; there are many people at the coal mining face, leading to high labor costs; at the same time, coal mining is a high-risk operation, posing high risks to workers; and the coal mining machine has a high failure rate, affecting production progress. In order to solve the above problems, an intelligent coal mining machine electrical control system is provided.

[0005] The objective of this utility model is achieved in the following manner: An intelligent coal mining machine electrical control system includes a coal mining machine controller, and a coal mining machine position and attitude detection system, a coal mining machine operation status detection system, a coal mining machine working environment monitoring system, a coal mining machine motion mechanism system, and a coal mining machine operating system, all of which are communicatively connected to the coal mining machine controller.

[0006] The electrical control system also includes a coal mining machine information display system that is communicatively connected to the coal mining machine controller.

[0007] The coal mining machine controller is connected to the remote monitoring and operating system of the coal mining machine via a network and switch.

[0008] The remote monitoring and operating system for the coal mining machine includes an upper-level roadway control center, which is connected to the switch via Ethernet or via gigabit fiber optic cable through a 5G signal conversion module.

[0009] The coal mining machine position and attitude detection system includes left and right tilt angle sensors installed on the rocker arm of the coal mining machine, a rotary encoder installed on the traveling part of the coal mining machine, left and right limit sensors installed on the rocker arm of the coal mining machine, and a body tilt angle sensor and an infrared position sensor installed on the electrical control box of the coal mining machine.

[0010] The coal mining and operation status detection system includes left and right rocker arm temperature sensors, left and right traction temperature sensors, electrical control box temperature and humidity sensors, oil tank temperature sensors, oil tank level sensors, cooling water flow sensors, cooling water pressure sensors, brake pressure sensors, total inlet water pressure sensors, and cable tension sensors.

[0011] The coal mining machine working environment monitoring system includes a gas sensor and a dust concentration sensor.

[0012] The coal mining machine's operating mechanism system includes left and right cutting motors, oil pump motors, and solenoid valves controlled by the coal mining machine controller, as well as left and right traction motors connected to the coal mining machine controller via frequency converters.

[0013] The coal mining machine operating system includes left and right operating stations and left and right remote control receivers.

[0014] The beneficial effects of this utility model are as follows: This utility model makes the coal mining machine electrical control system more intelligent, with the following advantages: 1. The intelligent coal mining machine electrical control system can realize automated control. According to the preset control program, it can autonomously start and stop each motor to complete the coal cutting and receiving traction cycle operation, thereby improving work efficiency. Moreover, it can be manually intervened at any time to prevent accidents caused by emergencies; 2. Reduced manpower input: The intelligent coal mining machine electrical control system can realize remote monitoring and control, reducing reliance on manual labor and lowering labor costs; 3. Improved level of coal mine mechanization: The emergence of the intelligent coal mining machine electrical control system represents an improvement in the level of coal mine mechanization, which has an important impact on the management and safety performance of mine production. Attached Figure Description

[0015] Figure 1 This is a block diagram of the intelligent coal mining machine electrical control system of this utility model. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same technical meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0018] An intelligent coal mining machine electrical control system includes a coal mining machine controller, and a coal mining machine position and attitude detection system, a coal mining machine operation status detection system, a coal mining machine working environment monitoring system, a coal mining machine motion mechanism system, and a coal mining machine operating system, all of which are communicatively connected to the coal mining machine controller.

[0019] The electrical control system also includes a coal mining machine information display system that is communicatively connected to the coal mining machine controller.

[0020] The coal mining machine controller is connected to the remote monitoring and operating system of the coal mining machine via a network and switch.

[0021] The remote monitoring and operating system for the coal mining machine includes an upper-level roadway control center, which is connected to the switch via Ethernet or via gigabit fiber optic cable through a 5G signal conversion module.

[0022] The coal mining machine position and attitude detection system includes left and right tilt angle sensors installed on the rocker arm of the coal mining machine, a rotary encoder installed on the traveling part of the coal mining machine, left and right limit sensors installed on the rocker arm of the coal mining machine, and a body tilt angle sensor and an infrared position sensor installed on the electrical control box of the coal mining machine.

[0023] The coal mining and operation status detection system includes left and right rocker arm temperature sensors, left and right traction temperature sensors, electrical control box temperature and humidity sensors, oil tank temperature sensors, oil tank level sensors, cooling water flow sensors, cooling water pressure sensors, brake pressure sensors, total inlet water pressure sensors, and cable tension sensors.

[0024] The coal mining machine working environment monitoring system includes a gas sensor and a dust concentration sensor.

[0025] The coal mining machine's operating mechanism system includes left and right cutting motors, oil pump motors, and solenoid valves controlled by the coal mining machine controller, as well as left and right traction motors connected to the coal mining machine controller via frequency converters.

[0026] The coal mining machine operating system includes left and right operating stations and left and right remote control receivers.

[0027] This intelligent coal mining machine electrical control system is developed based on existing technology, optimizing the coal mining machine operation status detection system and the coal mining machine environment monitoring system. It adds a coal mining machine position and attitude detection system, remote monitoring and operating system, and has the functions of remembering coal cutting and triangular coal cutting processes. It can be configured with complex process programs to plan coal cutting, which can meet the coal mining process requirements of different working faces, and the process programs can be flexibly modified.

[0028] The coal mining machine operation status monitoring system monitors, displays, and alarms on operating parameters. It provides display, alarm, and protection for the operating current and temperature of each working motor. It also provides display, alarm, and protection for the rotational temperature of each mechanical component. Furthermore, it provides display, alarm, and protection for the oil temperature and level in the hydraulic system's tank. Finally, it provides display, alarm, and protection for the total inlet water pressure, cooling water flow rate, and pressure. A main cable tensile strength detection system has been added to prevent the main cable from being broken.

[0029] The coal mining machine environmental monitoring system has added an uninterruptible power supply function of no less than 2 hours for the methane sensor, and has the functions of power off and fault interlock when methane exceeds the limit. It also has the function of real-time uploading of methane detection values. The dust concentration sensor monitors the dust content of the coal mining working face in real time, adjusts the working progress of the coal mining machine, and improves the quality of the working environment for workers.

[0030] The coal mining machine position and attitude detection system detects and displays the traveling speed and position of the coal mining machine in real time. It also detects the upward and downward mining angles and the working face inclination angle in the direction of the machine's travel. Its position detection resolution is no greater than 1cm, its position control accuracy is better than ±10cm, its typical cutting height memory repeatability error is ±2.5cm, and its rocker arm height control accuracy is within ±10cm.

[0031] The remote monitoring and operating system for the coal mining machine adopts dual-channel transmission of 5G signal and Ethernet network, ensuring stable and reliable communication. It supports full-function remote operation and control as well as comprehensive remote monitoring of the coal mining machine's operating status. It can send the coal mining machine's operating data to the remote monitoring box in the roadway and receive and execute operation control commands from the host computer. It can operate and control the coal mining machine's walking direction and speed, cutting height, and can stop the coal mining machine in an emergency, as well as enable and disable the coal mining machine's memory cutting function. The internal command transmission delay from the roadway to the coal mining machine is no more than 200ms. The intelligent coal mining machine's electrical control system has a learning mode and an automatic memory cutting mode. In the automatic repeating memory cutting mode, manual intervention is allowed at any time. The memory cutting system can realize processes such as automatic oblique cutting and feeding according to the user's mining process. In the learning mode, if the coal seam changes, when adjusting the drum of the coal mining machine to adapt to the coal seam, the intelligent coal mining machine's electrical control system will remember and update the adjustment, and will run according to the new memory data in the next operation.

[0032] This invention makes the coal mining machine's electrical control system more intelligent, offering the following advantages: 1. The intelligent coal mining machine electrical control system enables automated control. Based on a preset control program, it autonomously starts and stops each motor, completing the coal cutting and receiving traction cycle, thereby improving work efficiency. Furthermore, it allows for manual intervention to prevent accidents caused by unforeseen events. 2. Reduced energy consumption: By optimizing control strategies, the intelligent coal mining machine electrical control system can improve the efficiency and output of the coal mining machine while reducing energy consumption. 3. Reduced manpower: The intelligent coal mining machine electrical control system enables remote monitoring and control, reducing reliance on manual labor and lowering labor costs. 4. Improved safety: The intelligent coal mining machine electrical control system has fault diagnosis capabilities, enabling timely detection and diagnosis of coal mining machine faults and providing solutions. In addition, optimized control can reduce the environmental impact during coal mining and improve operational safety. 5. Enhanced coal mine mechanization: The emergence of the intelligent coal mining machine electrical control system represents an improvement in the level of coal mine mechanization, significantly impacting mine production management and safety performance.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. An intelligent coal mining machine electrical control system, characterized in that: The electrical control system includes a coal mining machine controller, and a coal mining machine position and attitude detection system, a coal mining machine operation status detection system, a coal mining machine working environment monitoring system, a coal mining machine motion mechanism system, and a coal mining machine operating system, all of which are connected in communication with the coal mining machine controller.

2. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The electrical control system also includes a coal mining machine information display system that is communicatively connected to the coal mining machine controller.

3. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining machine controller communicates with the coal mining machine's remote monitoring and operating system via a network and switch.

4. The intelligent coal mining machine electrical control system according to claim 3, characterized in that: The remote monitoring and operating system for the coal mining machine includes an upper-level roadway control center, which is connected to the switch via Ethernet or via gigabit fiber optic cable through a 5G signal conversion module.

5. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining machine position and attitude detection system includes left and right tilt angle sensors installed on the rocker arm of the coal mining machine, a rotary encoder installed on the traveling part of the coal mining machine, left and right limit sensors installed on the rocker arm of the coal mining machine, and a body tilt angle sensor and an infrared position sensor installed on the electrical control box of the coal mining machine.

6. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining and operation status detection system includes left and right rocker arm temperature sensors, left and right traction temperature sensors, electrical control box temperature and humidity sensors, oil tank temperature sensors, oil tank level sensors, cooling water flow sensors, cooling water pressure sensors, brake pressure sensors, total inlet water pressure sensors, and cable tension sensors.

7. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining machine working environment monitoring system includes a gas sensor and a dust concentration sensor.

8. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining machine's operating mechanism system includes left and right cutting motors, oil pump motors, and solenoid valves controlled by the coal mining machine controller, as well as left and right traction motors connected to the coal mining machine controller via frequency converters.

9. The intelligent coal mining machine electrical control system according to claim 1, characterized in that: The coal mining machine operating system includes left and right operating stations and left and right remote control receivers.

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