A mine-used withdrawing support controller

Abstract

The utility model discloses a kind of mine retraction support controller, including front shell assembly (1), with the rear shell assembly (2) of front shell assembly (1) fixed connection, be set in the space inside of front shell assembly (1) and rear shell assembly (2) and with the fixed connection of front shell assembly (1) acousto-optic module (3) and be set in the power box (4) of rear shell assembly (2) outside.The utility model provides a kind of mine retraction support controller, can monitor work progress in real time, facilitate personnel operation, guarantee personnel safety.

Description

Technical Field

[0001] This utility model relates to the field of underground coal mining, specifically to a mine retraction support controller. Background Technology

[0002] Coal holds a vital strategic position in my country's economic development and is the country's primary energy source. After coal mining is completed in underground working faces, the electrical control equipment is first disassembled and removed from the working face, and then the hydraulic supports are withdrawn one by one. The existing hydraulic support withdrawal work has the following main problems: the support withdrawal work is cumbersome and time-consuming; and the safety of on-site operators cannot be effectively guaranteed.

[0003] When retracting hydraulic supports, personnel need to carry a power supply and manually operate the hydraulic valves to retract the supports. During this process, personnel must operate the hydraulic valves in a confined space below the hydraulic support. Due to location and space limitations, personnel cannot fully control the overall retraction status of the hydraulic support or changes in the surrounding environment, resulting in extremely low work efficiency. This also prevents operators from reacting promptly and effectively to potential emergencies, increasing personnel safety risks. Furthermore, the actions of each valve in the valve group correspond to different support movements, requiring skilled personnel to operate the valves, and at least one person is needed to provide real-time reporting of the support retraction status, consuming significant human resources. Existing technologies cannot achieve safe, automated, and intelligent downhole operations. Summary of the Invention

[0004] This invention aims to overcome the technical problems of safety risks during the retraction of hydraulic supports in the prior art, and provides a mining retraction support controller that can monitor the work progress in real time, facilitate personnel operation, and ensure personnel safety.

[0005] This utility model provides a mining retraction support controller, including a front shell assembly, a rear shell assembly fixedly connected to the front shell assembly, an audio-visual module disposed inside the space formed by the front shell assembly and the rear shell assembly and fixedly connected to the front shell assembly, and a power supply box disposed outside the rear shell assembly.

[0006] The front housing assembly includes a front cover, a signal light and a lock located on the outside of the front cover, a PG fixing connector and a four-pin socket located on the side of the front cover, a power cord connected at one end to the PG fixing connector and at the other end to the power supply box, and an antenna located on the inside of the front cover.

[0007] The rear shell assembly includes a shell assembly, a wireless controller PCB module assembly connected to the shell assembly, an anti-collision magnet located below the shell assembly, wiring terminals located inside the shell assembly, a fixing slider located outside the shell assembly for fixing the power supply box, and a folding handle located above the shell assembly.

[0008] The sound and light module includes a buzzer connected to the front cover, a sound and light transparent cover fixedly connected to the buzzer by screws, and a multi-functional sound and light board connected to the sound and light transparent cover by screws.

[0009] Because of the high frequency of use, the downhole audio-visual module has a high failure rate and a short replacement cycle. Therefore, the audio-visual functions are combined into one module. This module and the front cover assembly can be quickly disassembled to reduce the impact of audio-visual failures on the product.

[0010] In a preferred embodiment of the mining retraction support controller described in this utility model, the antenna and signal light are attached to the front cover using self-adhesive backing.

[0011] In a preferred embodiment of the mining retraction support controller described in this utility model, the antenna includes a 433 antenna, a Bluetooth antenna, a 2.4G antenna, and an NFC antenna.

[0012] In a preferred embodiment of the mining retraction support controller described in this utility model, the 433 antenna is located on the lower part of the side of the front cover opposite to the power cord, the Bluetooth antenna is located on the upper part of the outer side of the front cover near the 433 antenna, and the 2.4G antenna is located on the lower part of the outer side of the front cover near the power cord.

[0013] The three antenna signals can interfere with each other, especially the Bluetooth antenna and the 2.4G antenna, because their signal frequencies are the same, so they interfere with each other more. Therefore, in the product design process, the spacing between the three antennas was increased and their arrangement was adjusted to reduce their mutual interference. This arrangement has less mutual influence and meets the requirements for underground use. This arrangement occupies less space, saves costs, reduces the overall size of the device, and is more convenient to carry and install.

[0014] The signal performance test data for the three antennas arranged in different positions are as follows:

[0015] Arrangement 1: The 433 antenna is located in the middle of the outer side of the front cover near the power cord, the Bluetooth antenna is located in the upper part of the outer side of the front cover opposite to the power cord, and the 2.4G antenna is located in the lower part of the outer side of the front cover near the power cord and directly below the 433 antenna.

[0016] The signal performance test data is shown in the table below:

[0017] First test:

[0018]

[0019] Second test:

[0020]

[0021]

[0022] Third test:

[0023]

[0024]

[0025] Arrangement 2: Compared to Arrangement 1, the positions of the 433 antenna and the Bluetooth antenna are swapped; the signal performance test data is shown in the table below:

[0026] First test:

[0027]

[0028] Second test:

[0029]

[0030]

[0031] Third test:

[0032]

[0033] Arrangement 3: The 433 antenna is located on the lower part of the side of the front cover opposite to the power cord, the Bluetooth antenna is located on the upper part of the outer side of the front cover near the 433 antenna, and the 2.4G antenna is located on the lower part of the outer side of the front cover near the power cord.

[0034] The signal performance test data is shown in the table below:

[0035] First test:

[0036]

[0037] Second test:

[0038]

[0039]

[0040] Third test:

[0041]

[0042] The test methods for the three arrangement methods are as follows: Take three retraction bracket controllers, test their signal strength and number of no response times respectively, and record their data at a specified distance. The values ​​are fixed distances. Record the data after 2-3 seconds when the data stabilizes. The number of no response times is tested 30 times in each experiment.

[0043] The test results show that the signal effect obtained by the arrangement of three is the best and the number of no response is the fewest. Therefore, the antenna should be laid out according to the arrangement of three.

[0044] In a preferred embodiment of the mining retraction support controller described in this utility model, the four-pin socket, the locking mechanism, and the PG fixing connector are fixed to the front cover by nuts and sealed by a sealing ring.

[0045] In a preferred embodiment of the mining retraction support controller described in this utility model, the wireless controller PCB module assembly includes a PCB fixing plate solder joint and a wireless controller PCB module fixed on the PCB fixing plate solder joint.

[0046] In a preferred embodiment of the mining retraction support controller described in this utility model, the PCB fixing plate weldment is drawer-shaped, and a limiting cylinder is provided on the PCB fixing plate weldment to limit the connection between the PCB fixing plate weldment and the housing assembly. The overall PCB structure is drawer-shaped, which makes it easier to enter the cavity, and the fixing cylinder is designed at the connection position between the fixing plate and the housing to facilitate positioning and installation during assembly.

[0047] In a preferred embodiment of the mine retraction support controller described in this utility model, elastic cotton is provided between the sound and light transparent cover and the multi-functional sound and light panel. The elastic cotton can play a role in shock absorption and isolation.

[0048] This utility model has the following advantages:

[0049] (1) The controller has a reserved battery installation position, which can realize the quick removal and installation of the power supply.

[0050] (2) The power supply affects the working time of the controller. The power supply is proportional to its own weight. Considering that the controller needs to be moved and installed manually frequently on site, the power supply controller only needs to support the working time of a single shift. The power supply can be plugged in and replaced underground. Personnel do not need to carry the controller and can bring the power supply to the surface to charge separately, reducing the transportation weight.

[0051] (3) The length of the battery compartment on the controller is adjustable. The appropriate length of the wing nut can be selected according to the length of the selected battery. It is compatible with changes in the length of the battery compartment due to battery capacity expansion and other reasons, which facilitates product maintenance and compatibility in the future.

[0052] (4) The controller power cord uses a PG fixed connector and is sealed with the front cover. This connector has high reliability, is easy to disassemble, and facilitates the replacement of the power supply cable and adjustment of the extension length.

[0053] (5) The front cover is made of plastic, which has low processing cost and light weight. It is a non-conductive material, which has little obstruction effect on electromagnetic waves. Electromagnetic waves can penetrate it more easily and will not have a significant impact on the signal strength of the various built-in antennas. The reliability of signal transmission is higher.

[0054] (6) The three antenna signals will interfere with each other, especially the Bluetooth antenna and the 2.4G antenna. Because their signal frequencies are the same, they interfere with each other more. Therefore, in the product design process, the spacing between the three antennas is increased and the arrangement position is adjusted to reduce their mutual interference. This arrangement has less mutual influence and meets the requirements for underground use. This arrangement occupies less space, saves costs, reduces the overall size of the machine, and is more convenient to carry and install.

[0055] (7) The sound and light module mainly consists of a transparent sound and light cover, a buzzer, and a multi-functional sound and light board. Based on past experience, the downhole sound and light module has a high failure rate and a short replacement cycle due to its high usage frequency. Therefore, the sound and light functions are combined into one module, which can be quickly replaced after a failure.

[0056] (8) An elastic cotton is added between the multifunctional sound and light board and the sound and light transparent cover in the sound and light module. This cotton can play the role of shock absorption and isolation. The isolation is mainly reflected in the fact that there are protruding electrical components and solder points on the side where the sound and light board and the transparent cover are matched. After adding the elastic cotton, they can be contained, and there is no need to process the clearance groove on the transparent cover, thus saving costs.

[0057] (9) A portion of the controller's main control board is exposed outside the cavity, and all the parts that need to be plugged in are on the exposed PCB, which is convenient for personnel to operate.

[0058] (10) The main function of the PCB fixing board is to fix the main control board of the controller and connect it to the housing. The overall structure of the PCB is drawer-shaped, which makes it easier to enter the cavity. A fixing cylinder is designed at the connection position between the fixing board and the housing to facilitate positioning and installation during assembly.

[0059] (11) The controller supports multiple installation methods such as magnets and screws. The magnets are installed at the four corners of the bottom of the housing, which can fix the controller on a flat surface. Threaded holes are reserved on the back of the controller, which makes it easy to fix the controller with screws or to use an adapter plate for conversion. Attached Figure Description

[0060] Figure 1 A diagram showing the components of a mine-use retraction support controller;

[0061] Figure 2 A three-dimensional diagram of a mine retraction support controller;

[0062] Figure 3 A front view of the front housing assembly of a mining retraction support controller;

[0063] Figure 4 Rear view of the front housing assembly of a mining retraction support controller;

[0064] Figure 5 A schematic diagram of the antenna layout for a mine retraction support controller;

[0065] Figure 6 A diagram showing the assembly composition of the rear shell of a mine retraction support controller.

[0066] Figure 7 This is a schematic diagram of the position of the limiting cylinder in a mine retraction support controller;

[0067] Figure 8 This is a diagram showing the composition of an acoustic and optical module for a mine retraction support controller.

[0068] Figure label:

[0069] 1. Front shell assembly; 11. Front cover; 12. Signal light; 13. Lock; 14. PG fixing connector; 15. Four-pin socket; 16. Power cord; 17. Antenna; 171. 433 antenna; 172. Bluetooth antenna; 173. 2.4G antenna; 174. NFC; 2. Rear shell assembly; 21. Housing assembly; 22. Wireless controller PCB module assembly; 221. PCB fixing board solder; 222. Wireless controller PCB module; 23. Anti-collision magnet; 24. Wiring terminal; 25. Fixing slider; 26. Folding handle; 27. Limiting cylinder; 3. Sound and light module; 31. Buzzer; 32. Sound and light transparent cover; 33. Multifunctional sound and light board; 4. Power supply box. Detailed Implementation

[0070] Example 1

[0071] like Figures 1-2 As shown, a mining retraction support controller includes a front shell assembly 1, a rear shell assembly 2 fixedly connected to the front shell assembly 1, an audio-visual module 3 disposed inside the space formed by the front shell assembly 1 and the rear shell assembly 2 and fixedly connected to the front shell assembly 1, and a power supply box 4 disposed outside the rear shell assembly 2.

[0072] like Figures 3-4 As shown, the front housing assembly 1 includes a front cover 11, a signal light 12 and a lock 13 disposed on the outside of the front cover 11, a PG fixing connector 14 and a four-pin socket 15 disposed on the side of the front cover 11, a power cord 16 connected at one end to the PG fixing connector 14 and at the other end to the power supply box 4, and an antenna 17 disposed on the inside of the front cover 11; the antenna 17 and the signal light 12 are bonded to the front cover 11 with self-adhesive backing; the four-pin socket 15, the lock 12 and the PG fixing connector 14 are fixed to the front cover 11 with nuts and sealed with sealing rings;

[0073] like Figure 5 As shown, antenna 17 includes a 433 antenna 171, a Bluetooth antenna 172, a 2.4G antenna 173, and an NFC antenna 174; the 433 antenna 171 is located on the lower part of the side of the front cover 11 opposite to the power cord 16, the Bluetooth antenna 172 is located on the upper part of the outer side of the front cover 11 near the 433 antenna 171, and the 2.4G antenna 173 is located on the lower part of the outer side of the front cover 11 near the power cord 16.

[0074] like Figure 6 As shown, the rear shell assembly 2 includes a shell assembly 21, a wireless controller PCB module assembly 22 connected to the shell assembly 21, an anti-collision magnet 23 disposed below the shell assembly 21, a wiring terminal 24 disposed inside the shell assembly 21, a fixing slider 25 disposed outside the shell assembly 21 for fixing the power supply box 4, and a folding handle 26 disposed above the shell assembly 21; the wireless controller PCB module assembly 22 includes a PCB fixing board solder joint 221 and a wireless controller PCB module 222 fixed on the PCB fixing board solder joint 221; as shown Figure 7 As shown, the PCB fixing board weldment 221 is drawer-shaped, and a limiting cylinder 27 is provided on the PCB fixing board weldment 221 to limit the connection between the PCB fixing board weldment 221 and the housing assembly 21.

[0075] like Figure 8 As shown, the sound and light module 3 includes a buzzer 31 connected to the front cover 11, a sound and light transparent cover 32 fixedly connected to the buzzer 31 by screws, and a multi-functional sound and light plate 33 connected to the sound and light transparent cover 32 by screws. Elastic cotton is provided between the sound and light transparent cover 32 and the multi-functional sound and light plate 33.

[0076] The above description is illustrative only and not restrictive. Those skilled in the art will understand that any modifications, variations or equivalents that can be made without departing from the spirit and scope defined by the claims will fall within the protection scope of this utility model.

Claims

1. A mine retraction support controller, characterized in that: It includes a front shell assembly (1), a rear shell assembly (2) fixedly connected to the front shell assembly (1), an audio-visual module (3) disposed inside the space formed by the front shell assembly (1) and the rear shell assembly (2) and fixedly connected to the front shell assembly (1), and a power supply box (4) disposed outside the rear shell assembly (2). The front housing assembly (1) includes a front cover (11), a signal light (12) and a lock (13) located on the outside of the front cover (11), a PG fixing connector (14) and a four-pin socket (15) located on the side of the front cover (11), a power cord (16) with one end connected to the PG fixing connector (14) and the other end connected to the power box (4), and an antenna (17) located on the inside of the front cover (11). The rear shell assembly (2) includes a shell assembly (21), a wireless controller PCB module assembly (22) connected to the shell assembly (21), an anti-collision magnet (23) disposed below the shell assembly (21), a wiring terminal (24) disposed inside the shell assembly (21), a fixing slider (25) disposed outside the shell assembly (21) for fixing the power box (4), and a folding handle (26) disposed above the shell assembly (21). The sound and light module (3) includes a buzzer (31) connected to the front cover (11), a sound and light transparent cover (32) fixedly connected to the buzzer (31) by screws, and a multifunctional sound and light plate (33) connected to the sound and light transparent cover (32) by screws.

2. A mine retraction support controller according to claim 1, characterized in that: The antenna (17) and the signal light (12) are attached to the front cover (11) with self-adhesive backing.

3. A mine retraction support controller according to claim 2, characterized in that: The antenna (17) includes a 433 antenna (171), a Bluetooth antenna (172), a 2.4G antenna (173), and an NFC antenna (174).

4. A mine retraction support controller according to claim 3, characterized in that: The 433 antenna (171) is located on the lower part of the side of the front cover (11) opposite to the power cord (16), the 2.4G antenna (173) is located on the upper part of the outer side of the front cover (11) near the 433 antenna (171), and the Bluetooth antenna (172) is located on the lower part of the outer side of the front cover (11) near the power cord (16).

5. A mine retraction support controller according to claim 1, characterized in that: The four-pin socket (15), the lock (13), and the PG fixing connector (14) are fixed to the front cover by nuts and sealed by sealing rings.

6. A mine retraction support controller according to claim 1, characterized in that: The wireless controller PCB module assembly (22) includes a PCB mounting plate solder joint (221) and a wireless controller PCB module (222) fixed on the PCB mounting plate solder joint (221).

7. A mine retraction support controller according to claim 6, characterized in that: The PCB fixing board weldment (221) is drawer-shaped, and a limiting cylinder (27) is provided on the PCB fixing board weldment (221) to limit the connection between the PCB fixing board weldment (221) and the housing assembly (21).

8. A mine retraction support controller according to claim 1, characterized in that: Elastic cotton is provided between the sound and light transparent cover (32) and the multifunctional sound and light plate (33).

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