Fully-mechanized coal mining three-machine linkage control device

Abstract

The utility model relates to a linkage control device for three fully-mechanized mining machines, which belongs to the technical field of coal mining and comprises an upper computer, an industrial looped network, a PLC (programmable logic controller) control cabinet, the three fully-mechanized mining machines, a data acquisition box and a bottom layer data sensor, the upper computer is electrically connected with the industrial looped network, and the industrial looped network and the three fully-mechanized mining machines are respectively and electrically connected with the PLC control cabinet. The three fully-mechanized mining machines comprise a coal mining machine, a hydraulic support and a scraper conveyor, the data acquisition box is electrically connected with the PLC control cabinet, the bottom layer data sensor is electrically connected with the data acquisition box, and the bottom layer data sensor comprises a first pressure sensor, a second pressure sensor, a first displacement sensor, a second displacement sensor and a temperature sensor. The first pressure sensor and the first displacement sensor are arranged on a stand column of the hydraulic support, and the second pressure sensor, the second displacement sensor and the temperature sensor are arranged in a pushing jack of the hydraulic support. According to the utility model, remote interaction of fully-mechanized coal mining equipment can be realized, unified management and control are realized, and the automation degree of coal mining is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a comprehensive mining three-machine linkage control device. Background Technique

[0002] With the development of modern science and technology, the development capacity of coal mine resources in China is constantly improving, and the functions and automation levels of underground comprehensive mining equipment are also continuously enhanced. The improvement of the automation level of comprehensive mining equipment not only reflects the important idea of establishing and developing a "digital mine", but also economically reduces the mining cost of the mine, improves the safety level of the mine, and has been widely recognized in society. At present, the control of intelligent equipment on domestic working faces is still in the exploratory test stage. Therefore, the research on fully automatic domestic unmanned comprehensive mining face technical equipment has important theoretical significance and practical value. Developing comprehensive mining equipment with independent intellectual property rights and highly intelligent automatic control devices is one of the key points in the research of the coal mine automation field.

[0003] The technology of fully mechanized and automated coal mining is the key link to achieve safe and efficient mining and a necessary link to ultimately realize unmanned control of comprehensive mining faces. How to carry out coordinated control of the equipment on the comprehensive mining face according to the actual situation of existing comprehensive mining equipment, realize remote intelligent monitoring of the comprehensive mining face, and thus achieve less or no manual operation is a problem that needs to be considered by technical personnel in this field. Content of the Utility Model

[0004] In view of this, the utility model provides a comprehensive mining three-machine linkage control device, which can effectively solve the problems of scattered control modes of each device, inability to achieve fast and accurate cooperation, inability to give full play to the performance of the device, and low mining efficiency.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A comprehensive mining three-machine linkage control device includes a host computer, an industrial ring network, a PLC control cabinet, comprehensive mining three machines, a data acquisition box and bottom-layer data sensors. The host computer is electrically connected to the industrial ring network and is used for connecting data information above and below the well. The PLC control cabinet is connected to the industrial ring network through an Ethernet interface. The comprehensive mining three machines are electrically connected to the PLC control cabinet. The comprehensive mining three machines include a shearer, a hydraulic support and a scraper conveyor. The data acquisition box is electrically connected to the PLC control cabinet. The bottom-layer data sensors are electrically connected to the data acquisition box. The bottom-layer data sensors include a first pressure sensor, a second pressure sensor, a first displacement sensor, a second displacement sensor and a temperature sensor. The first pressure sensor and the first displacement sensor are arranged on the upright posts of the hydraulic support. The second pressure sensor, the second displacement sensor and the temperature sensor are arranged in the push jack of the hydraulic support.

[0007] Furthermore, the host computer is provided with a touch screen panel, which can be used for the monitoring and management interaction of the device.

[0008] Furthermore, the PLC control cabinet includes a low-voltage power distribution cabinet body and a programmable controller. The programmable controller is arranged in the low-voltage power distribution cabinet body, and the Siemens S7-1200 programmable controller is used as the main controller.

[0009] Furthermore, it also includes a monitoring camera, and the PLC control cabinet and the data acquisition box are both electrically connected to the monitoring camera.

[0010] Furthermore, the monitoring camera is a panoramic three-eye camera, equipped with three high-definition probes, with automatic image stitching, and can achieve a large field of view of 180°.

[0011] Furthermore, the data acquisition box adopts an intrinsically safe and explosion-proof structure, which is used to provide network ports and serial ports to facilitate the access of communication signals.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. According to the actual situation of the existing fully-mechanized mining equipment, the present utility model applies communication network technology and computer technology to develop a set of centralized control devices for fully-mechanized mining faces, conducts collaborative control on the equipment of fully-mechanized mining faces, realizes remote intelligent monitoring of fully-mechanized mining faces, and thus realizes less or no manual operation.

[0014] 2. According to the equipment linkage control, aiming at the personnel safety problem, the present utility model selects a panoramic three-eye camera to monitor the equipment and personnel safety of the fully-mechanized mining face with a large field of view. When a person is detected entering a dangerous area, an audible and visual alarm signal is issued, which plays a role in protecting personnel safety.

[0015] 3. The present utility model solves the problem of information islands in fully-mechanized mining faces, realizes the problem of data fusion in comprehensive working faces, improves the intelligent control device for fully-mechanized mining faces, achieves the effects of "reducing personnel and increasing safety" and "reducing personnel and increasing efficiency", and provides intelligent data support for fully-mechanized mining faces. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of a kind of fully-mechanized mining three-machine linkage control device of the present utility model. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0018] In the description of the present utility model, it should be noted that the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] Embodiment 1

[0020] As Figure 1 shown, this embodiment discloses a comprehensive mining three-machine linkage control device, which includes a host computer, an industrial ring network, a PLC control cabinet, comprehensive mining three machines, a data acquisition box, and bottom-layer data sensors.

[0021] The host computer serves as the control center of the entire system, is provided with a touch screen panel, is responsible for receiving external instructions, monitoring the operating status of the entire system, and communicating with each component through the industrial ring network, and is responsible for making decisions and coordinating the work of each part.

[0022] The industrial ring network uses 10 Gigabit, Gigabit switches, and 100 Megabit transmission ports, has multiple access methods, connects the host computer and each sub-device for high-speed communication, and ensures that instructions and data can be transmitted in real time and accurately. The industrial ring network has high reliability and anti-interference ability to adapt to the complex and changeable industrial environment and realize the connection of data information above and below the well.

[0023] The PLC control cabinet uses a Siemens S7-1200 programmable controller as the main controller, connects to an Ethernet interface with a standard Ethernet communication protocol. Specifically, the PLC control cabinet selects a GGD (AC low-voltage power distribution cabinet) cabinet frame, the control box adopts an explosion-proof and intrinsically safe design, the intrinsically safe power supply is installed in the explosion-proof cavity, the cabinet is made of 2 mm thick cold-rolled steel plate, can withstand the impact strength and strength test specified by national standards, the protection level is IP65, uses Siemens S7-1200 as the control core, processes the data of the transmission equipment status parameters, controls the points of the control unit, uploads and downloads the status data of the three machines, and control instructions.

[0024] The fully-mechanized mining triad includes a shearer, hydraulic supports, and a scraper conveyor, all of which are electrically connected to a PLC control cabinet. The PLC control cabinet performs control operations on relevant equipment according to control instructions. As a key equipment in the production process, the shearer directly receives instructions from the upper computer and executes the mining task. Its operating status and mining data are fed back to the upper computer through the industrial ring network. The hydraulic supports are used to support the goaf to ensure stability during the operation. The PLC control cabinet adjusts the support force of the hydraulic supports by controlling the pressure and flow rate of the hydraulic system to adapt to different mining conditions. The scraper conveyor is responsible for transporting the mined coal from the working face to the outside. Its operating status and transportation volume are monitored and adjusted in real time through the industrial ring network. Under normal equipment conditions, when the linkage start button is pressed, the triad equipment starts with a process delay. When conducting state data monitoring and triad collaborative control experiments on the hydraulic supports, underlying data sensors need to be installed on the fully-mechanized mining triad. The underlying data sensors include Pressure Sensor 1, Pressure Sensor 2, Displacement Sensor 1, Displacement Sensor 2, and a temperature sensor. Pressure Sensor 1 and Displacement Sensor 1 are installed on the hydraulic support columns, and Displacement Sensor 2, Pressure Sensor 2, and the temperature sensor are installed inside the push jack of the hydraulic support to achieve the monitoring functions of column pressure, column displacement, push displacement, and push pressure.

[0025] As a preferred embodiment of the present utility model, it further includes a monitoring camera. The PLC control cabinet and the data acquisition box are both electrically connected to the monitoring camera. The monitoring camera is a panoramic three-eye camera equipped with three high-definition probes. The images are automatically stitched together to provide a large field of view of 180°. The monitoring camera is used to monitor the safety of the working environment in real time, such as personnel activities and equipment operating status. Once an abnormal situation is detected, the monitoring camera will promptly feed back the information to the upper computer for prompt countermeasures. The PLC control cabinet is responsible for centrally controlling various parameters on site, such as controlling the stability of the hydraulic supports and adjusting the speed of the scraper conveyor. It receives control instructions from the upper computer and real-time data from the sensors, and outputs control signals to each actuator after processing.

[0026] The data acquisition box adopts intrinsically safe and flameproof design, and is used to provide network ports and serial ports for facilitating the access of communication signals of sub-devices. The underlying data sensors and the PLC control cabinet are electrically connected to the data acquisition box. The data acquisition box is used to collect information data on the working states of various on-site devices, such as information on pressure, displacement, temperature, etc. monitored by sensors. After preliminary processing, these data will be transmitted to the PLC control cabinet and the upper computer for further analysis and processing. The underlying data sensors are respectively responsible for monitoring key parameters during the operation of the system, and they transmit the real-time monitored data to the data acquisition box, providing an important basis for the automatic control and optimization of the system. Through the centralized control of the upper computer, the real-time communication of the industrial ring network, the collaborative work of each component, and the precise monitoring of the sensors, the present utility model realizes efficient, stable and safe automatic production.

[0027] Although the specific implementation manners of the present utility model have been described above in conjunction with the accompanying drawings, it is not a limitation on the protection scope of the present utility model. Those skilled in the art should understand that, based on the technical solution of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. A fully mechanized mining three-machine linkage control device, characterized in that: It includes a host computer, an industrial ring network, a PLC control cabinet, three fully mechanized mining machines, a data acquisition box and bottom-level data sensors. The host computer is electrically connected to the industrial ring network for communicating data information above and below the well. The PLC control cabinet is connected to the industrial ring network via an Ethernet interface. The three fully mechanized mining machines are electrically connected to the PLC control cabinet. The three fully mechanized mining machines include a coal mining machine, a hydraulic support and a scraper conveyor. The data acquisition box is electrically connected to the PLC control cabinet. The bottom-level data sensors are electrically connected to the data acquisition box. The bottom-level data sensors include pressure sensor 1, pressure sensor 2, displacement sensor 1, displacement sensor 2 and temperature sensor. The pressure sensor 1 and displacement sensor 1 are arranged on the column of the hydraulic support. The pressure sensor 2, displacement sensor 2 and temperature sensor are arranged in the push jack of the hydraulic support.

2. A fully mechanized mining three-machine linkage control device according to claim 1, characterized in that: The host computer is provided with a touch screen panel, which can be used for monitoring and managing the interaction of the control device.

3. A fully mechanized mining three-machine linkage control device according to claim 1, characterized in that: The PLC control cabinet comprises a low-voltage power distribution cabinet body and a programmable controller. The programmable controller is arranged in the low-voltage power distribution cabinet body. The programmable controller adopts a Siemens S7-1200 programmable controller as a main controller.

4. A fully mechanized mining three-machine linkage control device according to claim 1, characterized in that: It also includes a monitoring camera, and the PLC control cabinet and the data acquisition box are both electrically connected to the monitoring camera.

5. A fully mechanized mining three-machine linkage control device according to claim 4, characterized in that: The surveillance camera is a panoramic three-eye camera equipped with three high-definition probes. The images are automatically spliced ​​to achieve a 180° wide field of view.

6. A fully mechanized mining three-machine linkage control device according to claim 1, characterized in that: The data acquisition box adopts an intrinsically safe and flameproof structure, and is used to provide a network port and a serial port to facilitate the access of communication signals.

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