Mine hoist one-machine multi-machine control device

Abstract

A control device for multiple mine hoists relates to the technical field of mine hoist control and comprises an operation table composed of a control unit, a PLC (programmable logic controller) unit, a touch screen and a router, the PLC unit is connected with the control unit and receives signal instructions sent by the control unit, and the PLC unit is connected with a plurality of hoist master control systems through the router; the PLC unit is further connected with a touch screen used for displaying operation state parameters of all the elevator main control systems. According to the device, one operation table is remotely operated so as to control the running state of a plurality of elevator main control systems, an operator does not need to frequently move and operate among a plurality of elevators, and the working efficiency is improved; operators work in a centralized control center, the influence of severe environment is avoided, field operation is reduced, the number of elevator operators is reduced, and high economic benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the field of mine hoist control technology, and in particular to a multi-machine control device for a mine hoist. Background Technology

[0002] Based on the distribution of ore layers, underground mining in metal mines typically involves multiple horizontal sections. Multiple hoists are installed at different locations within each horizontal section. In-depth research into several mines has revealed numerous problems that urgently need to be addressed:

[0003] 1. Frequent movement: Operators need to move frequently between multiple hoists, which not only wastes time but also increases the workload of operators.

[0004] 2. Harsh environment: Harsh operating environment poses a threat to the health and safety of operators, such as high temperature, high humidity, dust, etc.

[0005] 3. Low work efficiency: Operators need to move between multiple hoists, resulting in low work efficiency and limited production efficiency.

[0006] 4. Safety hazards: Operators may encounter safety accidents such as slipping or falling during frequent movement.

[0007] 5. Difficult to maintain: On-site equipment maintenance is difficult, and once a malfunction occurs, it takes a long time to reach the site for repair. Summary of the Invention

[0008] To address the aforementioned technical problems, the purpose of this utility model is to design a multi-machine control device for mine hoists, enabling remote centralized control of multiple hoists in a multi-machine control manner, thereby improving operational efficiency, reducing personnel requirements, and enhancing operational safety.

[0009] The purpose of this utility model is achieved by the following technical solution. According to this utility model, a multi-machine control device for a mine hoist includes an operating console composed of a control unit, a PLC unit, a touch screen, and a router. The PLC unit is connected to the control unit and receives signal commands sent from the control unit. The PLC unit is connected to multiple hoist main control systems via the router. The PLC unit is also connected to a touch screen for displaying the operating status parameters of each hoist main control system.

[0010] Furthermore, the control unit includes start and stop buttons, a manual or automatic control mode selection switch, a hoist control selection switch, a master control handle, and a brake control handle, and can generate corresponding start and stop button signals, manual or automatic control mode selection switch signals, hoist control selection switch signals, master control handle speed setting signals, and brake handle oil pressure setting signals.

[0011] Furthermore, the PLC unit includes a CPU module, a communication module, a digital input module, and an analog input module. The communication module is connected to a router to complete the network communication and data interaction between the PLC unit and multiple hoist main control systems. The digital input module receives start and stop button signals, manual or automatic control mode selection switch signals, and hoist control selection switch signals. The analog input module receives speed command signals from the master control handle and hydraulic pressure command signals from the brake handle.

[0012] Furthermore, the control unit's master control handle generates a 0-10V master control handle speed command signal, and the brake control handle generates a 0-10V brake handle oil pressure command signal.

[0013] Based on the foregoing technical solution, this utility model has the following beneficial effects:

[0014] (1) The device is connected to the main control systems of multiple hoists through the control panel, realizing remote operation of one control panel to control the operating status of multiple hoists' main control systems, eliminating the need for operators to frequently move between multiple hoists and improving work efficiency.

[0015] (2) This device can not only monitor the speed, oil pressure and depth position data of the hoist in real time, detect and deal with faults in a timely manner, but also automatically record operation logs and operating data, which facilitates fault analysis and performance optimization.

[0016] (3) During the operation of the device, the operators work in the central control center, which avoids the impact of harsh environment, reduces on-site operation, reduces the number of hoist operators, and has high economic benefits.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a multi-machine control device for a mine hoist according to the present invention.

[0019] Figure 2 This is a schematic diagram of an embodiment of the multi-machine control device for a mine hoist in operation.

[0020] [Attached image labels]

[0021] 1. Control unit; 2. PLC unit; 3. Touch screen; 4. Router; 5. Hoist main control system. Detailed Implementation

[0022] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of the mine hoist multi-machine control device proposed by this utility model:

[0023] Please see Figure 1 This utility model discloses a multi-machine control device for a mine hoist, comprising an operating unit 1, a PLC unit 2, a touch screen 3, and a router 4. The PLC unit 2 is connected to the operating unit 1 and receives signal commands sent from the operating unit 1. The PLC unit 2 is connected to the router 4 and the touch screen 3. The PLC unit 2 is connected to multiple hoist main control systems 5 through the router 4. The multiple hoist main control systems 5 are respectively installed on the corresponding hoists.

[0024] Control Unit 1 includes start and stop buttons, manual and automatic control mode selection switches, hoist control selection switches, master control handles, and brake control handles. It can generate corresponding start and stop button signals, manual or automatic control mode selection switch signals, hoist control selection switch signals, master control handle speed setting signals, and brake handle hydraulic pressure setting signals. The master control handle generates a 0-10V master control handle speed setting signal, and the brake control handle generates a 0-10V brake handle hydraulic pressure setting signal. The speed and hydraulic pressure setting signals are transmitted to PLC Unit 2. Furthermore, the 0-10V master control handle speed setting signal corresponds to the 0-100% rated speed of each hoist, and the 0-10V brake handle hydraulic pressure setting signal corresponds to the 0-100% open brake hydraulic pressure of each hoist.

[0025] PLC Unit 2 includes a CPU module, a communication module, a digital input module, and an analog input module. The communication module is connected to router 4 to complete the network communication and data interaction between PLC Unit 2 and each hoist main control system 5. The digital input module receives digital signals from control unit 1, including manual and automatic control mode selection switch signals, hoist control selection switch signals, and start and stop button signals. The analog input module receives analog signals from control unit 1, including 0-10V master handle speed setting signals and 0-10V brake handle hydraulic pressure setting signals. After processing the aforementioned signals, the CPU module sends running instructions to each hoist main control system 5 via network communication. Specifically, after the speed control instruction and hydraulic pressure control instruction are transmitted to each hoist main control system 5, each hoist main control system 5 receives these signal instructions and operates at the actual speed and hydraulic pressure corresponding to the signal instructions. Each hoist main control system 5 then sends the real-time data during operation back to PLC Unit 2.

[0026] Router 4: Used for network communication between PLC unit 2 and multiple hoist main control systems 5. Specifically, router 4 transmits instruction information from PLC unit 2 to each hoist main control system 5, and at the same time, transmits the operating status parameters of each hoist main control system 5 back to PLC unit 2. PLC unit 2 receives signal instructions from control unit 1 and controls the operating status of one or more hoists through router 4, realizing instruction control and data interaction between PLC unit 2 and multiple hoist main control systems 5.

[0027] Touchscreen 3: Used to display single-machine, dual-machine, and multi-machine operation screens corresponding to the hoist selection control switch signals, display historical data recording screens corresponding to each hoist, fault alarm screens, and shaft depth screens; specifically: when the hoist selection control switch selects hoist #1, the operation screen of hoist #1 will be displayed; if a fault occurs during the operation of hoist #1, the fault alarm screen of hoist #1 will be displayed; the shaft depth screen can display the depth position of the corresponding hoist in real time; the display screens for dual-machine or multi-machine operation can be similarly displayed in the aforementioned manner; during hoist operation, touchscreen 3 also displays the operating status parameters of each hoist main control system 5 in real time, completes other control functions besides the physical buttons, switches, and handle control devices set in control unit 1, records historical data (operation logs and operating parameter data) and displays them on the historical data recording screen.

[0028] The working principle and operating steps of this utility model's multi-machine control device for mine hoists are detailed below.

[0029] As one embodiment of this utility model, please refer to Figure 2In this embodiment, there are five hoist main control systems 5. When the device is put into use, the start button on the operation unit 1 is pressed, and the control unit 1 selects the hoist serial number to be controlled. For example, serial number (1) corresponds to hoist #1, serial number (2) corresponds to hoist #2, and so on, serial number (5) corresponds to hoist #5. When the control unit 1 selects hoist #1, the PLC unit 2 receives the instruction and transmits the instruction information to each hoist main control system 5 through the router 4. Then, the hoist main control systems 5 corresponding to hoists #2, #3, #4, and #5 stop running. Then the device waits for or obtains the ready signal of hoist #1. After hoist #1 is ready, the control unit 1... Unit 1 selects between manual and automatic control modes via a selector switch to determine the operating mode. After receiving the automatic control command from control unit 1, the control panel and the main control system of hoist #1 do not require operator intervention. They wait for control unit 1 to send corresponding speed and hydraulic pressure command signals via the master control handle and brake control handle. PLC unit 2 then sends the received speed and hydraulic pressure command signals to the main control system of hoist #1. Upon receiving the signals, the main control system of hoist #1 operates at the actual speed and hydraulic pressure, and controls the speed and hydraulic pressure of hoist #1 in conjunction with the speed and hydraulic pressure command signals sent by PLC unit 2. For example: [The text abruptly ends here, likely due to an incomplete sentence or a formatting error.] The system receives various speed and hydraulic pressure commands, such as rapid ascent and descent, slow ascent and descent, and stop and emergency stop, and automatically completes the operation of the No. 1 hoist, including open or closed brake, acceleration, constant speed, deceleration, crawling, and stopping. During this process, PLC unit 2 interacts with the hoist main control system 5 through router 4, processes and confirms the interactive data, and automatically provides necessary protection for the hoist's operation, such as automatically protecting the hoist's speed, depth position, voltage, current, and hydraulic station. In automatic control mode, the No. 1 hoist main control system can achieve unattended, automated operation. When it receives a manual control command from control unit 1, the No. 1 hoist main control system does not require an operator. In terms of operation, the operator only needs to manually control the control panel and send relevant control command signals to the PLC unit 2 through the operation control unit 1. The PLC unit 2 controls the main control system of hoist #1 through router 4 to make corresponding operating states (for example, the operator sends a start command by operating the start button to complete the start and stop, and sends corresponding speed control commands and hydraulic control commands by operating the master control handle and brake control handle to complete the operation states of acceleration, constant speed, deceleration, crawling, open brake and closed brake). Of course, during this process, the protection of hoist speed, depth position, voltage, current, hydraulic station, etc. is still completed automatically. Therefore, hoist #1 and its main control system still achieve automated operation and unattended operation.Because PLC unit 2 is connected to touch screen 3, the touch screen 3 will display real-time data parameters such as speed, depth position, and hydraulic pressure of the hoist main control system 5 during operation. It will also save and record data from each operation.

[0030] Furthermore, in other embodiments of this utility model, the commissioning commands of two or more hoists and their main control systems can be selected simultaneously, which can realize the automated operation of each hoist main control system 5. The operating status of the hoist main control systems 5 corresponding to the two or more hoists can be displayed on the touch screen 3 at the same time, so as to ensure that the real-time operating status of each hoist is understood and subsequent corresponding commands are made.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the design and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A mine hoist one-to-many control device, characterized by: The control panel consists of a control unit (1), a PLC unit (2), a touch screen (3), and a router (4). The PLC unit (2) is connected to the control unit (1) and receives signal commands sent from the control unit (1). The PLC unit (2) is connected to multiple hoist main control systems (5) through the router (4). The PLC unit (2) is also connected to the touch screen (3) used to display the operating status parameters of each hoist main control system (5).

2. A mine hoist one-to-many control apparatus according to claim 1, characterized in that: The control unit (1) includes start and stop buttons, manual or automatic control mode selection switch, hoist selection control switch, master control handle, and brake control handle, and can generate corresponding start and stop button signals, manual or automatic control mode selection switch signals, hoist selection control switch signals, master control handle speed setting signals, and brake handle oil pressure setting signals.

3. A mine hoist one-to-many control apparatus according to claim 2, characterized in that: The PLC unit (2) includes a CPU module, a communication module, a digital input module, and an analog input module. The communication module is connected to a router (4) to complete the network communication and data interaction between the PLC unit (2) and multiple hoist main control systems (5). The digital input module receives start and stop button signals, manual or automatic control mode selection switch signals, and hoist control selection switch signals. The analog input module receives the speed command signal from the master handle and the hydraulic pressure command signal from the brake handle.

4. A mine hoist one-to-many control apparatus according to claim 2, characterized in that: The control unit (1) generates a 0-10V master control handle speed command signal and a 0-10V brake handle oil pressure command signal via its master control handle.

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