Safety auxiliary device suitable for fully mechanized coal mining face of coal mine

Abstract

The utility model discloses a safety auxiliary device suitable for a fully mechanized coal mining face of a coal mine, which comprises a power box, a PLC (Programmable Logic Controller), a driver, an electromagnetic pilot valve, a high-pressure main valve, a combined jack device and a remote controller, an infrared receiver is arranged in the PLC, and the remote controller is wirelessly connected with the infrared receiver; the PLC is connected with the driver and the electromagnetic pilot valve, the electromagnetic pilot valve is connected with the high-pressure main valve, and the high-pressure main valve is connected with the combined jack device. According to the safety auxiliary device disclosed by the utility model, the problem that the operation condition of electromechanical equipment operated by a worker in a close-fitting battle mode and the operation process cannot be observed in all directions is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a safety auxiliary device suitable for a fully mechanized mining working face in a coal mine. Background Art

[0002] With the promotion and application of modern coal mining technologies such as mechanization, automation, informatization and intelligence in the fully-mechanized mining face, the operation of electromechanical equipment in the fully-mechanized mining face has also been upgraded again and again. Workers' "close combat" is prone to work-related accidents, which may cause minor injuries to hands and feet, or even life loss, and the cost should not be underestimated.

[0003] The operations of recovering anchor rods (ropes) at the head of the comprehensive mining working face, the belt winding device, the two-lane advance supports, the tail filling supports, the self-moving horseshoe tail of the belt conveyor, the transfer machine, the tail monorail hanging cable, etc. all require close manual operation. Firstly, the operating conditions of the equipment cannot be fully understood during the operation process, and secondly, close operation can easily cause physical harm to employees. Utility Model Content

[0004] The technical problem to be solved by the utility model is to solve the problem that mechanical and electrical equipment in a fully mechanized mining face needs to be operated closely by human beings and is prone to work-related accidents.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A safety auxiliary device suitable for a fully mechanized working face in a coal mine comprises: a power box 100, a PLC controller 200, a driver 300, an electromagnetic pilot valve 400, a high-pressure main valve 500 and a combined jack device 600 and also comprises a remote controller 700. An infrared receiver 210 is arranged in the PLC controller 200, and the remote controller 700 is wirelessly connected to the infrared receiver 210; the PLC controller 200 is connected to the driver 300 and the electromagnetic pilot valve 400, the electromagnetic pilot valve 400 is connected to the high-pressure main valve 500, and the high-pressure main valve 500 is connected to the combined jack device 600.

[0007] In one embodiment of the present invention, the PLC controller 200 includes an auxiliary normally open contact K0 , and the auxiliary normally open contact K0 is connected in series with the driver 300 .

[0008] In one embodiment of the present invention, the driver 300 is connected in series with the electromagnetic pilot valve 400 .

[0009] In one embodiment of the utility model, the combined jack device 600 includes a first jack device, a second jack device, a third jack device and a fourth jack device, and the high-pressure main valve 500 includes a first high-pressure main valve connected to the first jack device, a second high-pressure main valve connected to the second jack device, a third high-pressure main valve connected to the third jack device, and a fourth high-pressure main valve connected to the fourth jack device.

[0010] In one embodiment of the present invention, a guard plate is fixedly connected to the telescopic end of the first jack device.

[0011] In one embodiment of the present invention, the solenoid pilot valve 400 includes a first solenoid pilot valve connected to the first high-pressure main valve, a second solenoid pilot valve connected to the second high-pressure main valve, a third solenoid pilot valve connected to the third high-pressure main valve, and a fourth solenoid pilot valve connected to the fourth high-pressure main valve.

[0012] In one embodiment of the present utility model, the PLC controller 200 includes auxiliary normally open contacts K1, K2, K3 and K4; wherein the auxiliary normally open contact K1 is connected to the pilot valve coil HBB of the first solenoid pilot valve; the auxiliary normally open contact K2 is connected to the pilot valve coil LZ of the second solenoid pilot valve; the auxiliary normally open contact K3 is connected to the pilot valve coil TY of the third solenoid pilot valve, and the auxiliary normally open contact K4 is connected to the pilot valve coil SS of the fourth solenoid pilot valve.

[0013] In one embodiment of the utility model, a main switch button QD0, function switch buttons QD1, QD2, QD3 and QD4 are provided on the remote control 700; and the main switch button QD0 and function switch buttons QD1~QD4 are wirelessly remotely connected to the auxiliary normally open contacts K0~K4 respectively through the infrared receiver 210.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the 127V AC is converted into 12V DC through the power box to power the PLC controller, the PLC controller receives the remote control signal through its own or external infrared receiver, and then sends action instructions to the driver in turn, controls the high-pressure main valve through the electromagnetic pilot valve, and the high-pressure main valve controls the actions of each jack respectively, so that the purpose of remote control of each jack by the on-site operator through direct operation of the remote control is achieved. It effectively solves the problem that the electromechanical equipment operated by the employees "closely" and the operation process cannot fully observe the operation of the equipment. Taking all factors into consideration, the benefits of this device in underground production safety management are immeasurable.

[0015] First, it effectively solved the problem of workers' "close combat" easily causing work-related accidents; second, the remote control operation of the equipment makes it convenient for workers to observe the operation of the equipment from multiple perspectives during the operation, and to check for dynamic safety hazards; third, it saves human resources and breaks the previous situation of multiple people cooperating in the operation; fourth, the use of remote control operation saves time and effort and greatly improves work efficiency; fifth, it effectively solves the risk of iron tools such as end recovery anchor rods, anchor cables, and steel belts entering the "triangular belt" of the coal wall.

[0016] The utility model can be applied to the design and transformation of the head mechanical arm of the comprehensive mining working face to recover anchor rods (ropes), the belt winding device, the two-lane advance supports, the tail filling supports, the self-moving horseshoe tail of the belt conveyor, the transfer machine, and the tail monorail hanging cable, realizing remote control, which completely solves the problem of "close combat" for employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of a safety auxiliary device suitable for a fully mechanized mining face in a coal mine according to an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the connection between the PLC controller and the driver according to an embodiment of the utility model.

[0019] Figure 3 This is a schematic diagram of the connection between the PLC controller and the electromagnetic pilot valve according to an embodiment of the utility model.

[0020] Figure 4 This is a signal flow diagram of an embodiment of the present utility model. DETAILED DESCRIPTION

[0021] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] See also Figure 1As shown, this embodiment provides a safety auxiliary device suitable for a fully mechanized coal mining face, including: a power box 100, a PLC controller 200, a driver 300, an electromagnetic pilot valve 400, a high-pressure main valve 500, and a combined jack device 600, and also includes a remote controller 700. An infrared receiver 210 is provided in the PLC controller 200, the remote controller 700 is wirelessly connected to the infrared receiver 210, the PLC controller 200 is connected to the driver 300 and the electromagnetic pilot valve 400, the electromagnetic pilot valve 400 is connected to the high-pressure main valve 500, and the high-pressure main valve 500 is connected to the combined jack device 600.

[0024] See also Figure 1 and Figure 2 As shown, in one embodiment of the utility model, a transformer is provided in the power supply box 100 to convert AC127V into DC12V and input it into the PLC controller 200. Among them, the infrared receiver 210 can be provided by the PLC controller 200 system, or it can be configured later. The remote controller 700 is wirelessly connected through the infrared receiver 210 to control the on and off of the auxiliary normally open contact in the PLC controller 200. Specifically, the PLC controller 200 includes an auxiliary normally open contact K0, the auxiliary normally open contact K0 is connected in series with the driver 300, and the driver 300 is connected in series with the electromagnetic pilot valve 400.

[0025] See also Figures 1 to 4 As shown, in one embodiment of the utility model, the combined jack device 600 includes a first jack device, a second jack device, a third jack device and a fourth jack device, and the telescopic end of the first jack device is fixedly connected with a guard plate. The functions of each jack device in the combined jack device 600 are different, wherein the first jack device is used to support the coal mine fully mechanized mining face through the guard plate at the telescopic end, the second jack device is used for fixed support behind the column, the third jack device is used for lateral movement, and the fourth jack device is used for longitudinal extension. Through the flexible coordination of the combined jack device 600, the problem of employees' "close combat" operation of electromechanical equipment and the inability to observe the operation of the equipment in all directions during the operation process is effectively solved.

[0026] In one embodiment of the utility model, the high-pressure main valve 500 includes a first high-pressure main valve connected to the first jack device, a second high-pressure main valve connected to the second jack device, a third high-pressure main valve connected to the third jack device, and a fourth high-pressure main valve connected to the fourth jack device. And the electromagnetic pilot valve 400 includes a first electromagnetic pilot valve connected to the first high-pressure main valve, a second electromagnetic pilot valve connected to the second high-pressure main valve, a third electromagnetic pilot valve connected to the third high-pressure main valve, and a fourth electromagnetic pilot valve connected to the fourth high-pressure main valve. The high-pressure main valve is controlled by the low-pressure electromagnetic pilot valve, and the combined jack device 600 is indirectly controlled.

[0027] In one embodiment of the present utility model, the PLC controller 200 includes auxiliary normally open contacts K1, K2, K3 and K4. The auxiliary normally open contact K1 is connected to the pilot valve coil HBB of the first electromagnetic pilot valve, the auxiliary normally open contact K2 is connected to the pilot valve coil LZ of the second electromagnetic pilot valve, the auxiliary normally open contact K3 is connected to the pilot valve coil TY of the third electromagnetic pilot valve, and the auxiliary normally open contact K4 is connected to the pilot valve coil SS of the fourth electromagnetic pilot valve.

[0028] In one embodiment of the utility model, a main switch button QD0, function switch buttons QD1, QD2, QD3 and QD4 are provided on the remote control 700; and the main switch button QD0 and function switch buttons QD1~QD4 are wirelessly remotely connected to the auxiliary normally open contacts K0~K4 respectively through the infrared receiver 210.

[0029] See also Figures 1 to 4 As shown, in one embodiment of the utility model, the 127V AC is converted into 12V DC by the power box 100 to supply power to the PLC controller 200. Pressing the main switch button QD0 on the remote controller 700 energizes the relay of the infrared receiver 210 inside the PLC controller 200, closes its auxiliary normally open contact K0, and the driver 300 is energized to prepare for the electromagnetic pilot valve 400 to be attracted.

[0030] At this time, press the function switch button QD1 on the remote control 700, the auxiliary normally open contact K1 is closed, the pilot valve coil HBB of the first electromagnetic pilot valve is energized, the first high-pressure main valve is energized, and the first jack device performs a supporting action through the guard plate. Release the function switch button QD1, and the first jack device stops moving.

[0031] Press the function switch button QD2 on the remote control 700, the auxiliary normally open contact K2 is closed, the pilot valve coil LZ of the second electromagnetic pilot valve and the second high-pressure main valve are energized, and the second jack device performs a column action. Release the function switch button QD2, and the second jack device stops.

[0032] Press the function switch button QD3 on the remote control 700, the auxiliary normally open contact K3 is closed, the pilot valve coil TY of the third electromagnetic pilot valve and the third high-pressure main valve are energized, and the third jack device performs a pushing action. Release the function switch button QD3 and the third jack device stops moving.

[0033] Press the function switch button QD4 on the remote control 700, the auxiliary normally open contact K4 is closed, the pilot valve coil SS of the fourth electromagnetic pilot valve and the fourth high-pressure main valve are energized, and the fourth jack device performs extension and retraction action. Release the function switch button QD4 and the fourth jack device stops moving.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0035] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. A safety auxiliary device suitable for fully mechanized mining working face in coal mines, characterized in that: include: A power supply box (100), a PLC controller (200), a driver (300), an electromagnetic pilot valve (400), a high-pressure main valve (500) and a combined jack device (600), and also includes a remote controller (700). An infrared receiver (210) is arranged in the PLC controller (200), and the remote controller (700) is wirelessly connected to the infrared receiver (210); the PLC controller (200) is connected to the driver (300) and the electromagnetic pilot valve (400), the electromagnetic pilot valve (400) is connected to the high-pressure main valve (500), and the high-pressure main valve (500) is connected to the combined jack device (600).

2. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 1, characterized in that: The PLC controller (200) comprises an auxiliary normally open contact K0, and the auxiliary normally open contact K0 is connected in series with the driver (300).

3. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 1, characterized in that: The driver (300) is connected in series with the electromagnetic pilot valve (400).

4. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 1, characterized in that: The combined jack device (600) includes a first jack device, a second jack device, a third jack device and a fourth jack device, and the high-pressure main valve (500) includes a first high-pressure main valve connected to the first jack device, a second high-pressure main valve connected to the second jack device, a third high-pressure main valve connected to the third jack device and a fourth high-pressure main valve connected to the fourth jack device.

5. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 4, characterized in that: A guard plate is fixedly connected to the telescopic end of the first jack device.

6. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 4, characterized in that: The solenoid pilot valve (400) comprises a first solenoid pilot valve connected to the first high-pressure main valve, a second solenoid pilot valve connected to the second high-pressure main valve, a third solenoid pilot valve connected to the third high-pressure main valve, and a fourth solenoid pilot valve connected to the fourth high-pressure main valve.

7. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 6, characterized in that: The PLC controller (200) includes auxiliary normally open contacts K1, K2, K3 and K4; wherein the auxiliary normally open contact K1 is connected to the pilot valve coil HBB of the first electromagnetic pilot valve; the auxiliary normally open contact K2 is connected to the pilot valve coil LZ of the second electromagnetic pilot valve; the auxiliary normally open contact K3 is connected to the pilot valve coil TY of the third electromagnetic pilot valve; and the auxiliary normally open contact K4 is connected to the pilot valve coil SS of the fourth electromagnetic pilot valve.

8. A safety auxiliary device suitable for fully mechanized mining working face in a coal mine according to claim 7, characterized in that: The remote controller (700) is provided with a main switch button QD0, function switch buttons QD1, QD2, QD3 and QD4; and the main switch button QD0 and function switch buttons QD1-QD4 are respectively connected to auxiliary normally open contacts K0-K4 via an infrared receiver (210) via wireless remote control.

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