CN112459809B - Automatic alarm device for fully mechanized coal mining face end - Google Patents
Automatic alarm device for fully mechanized coal mining face end Download PDFInfo
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- CN112459809B CN112459809B CN202011117991.3A CN202011117991A CN112459809B CN 112459809 B CN112459809 B CN 112459809B CN 202011117991 A CN202011117991 A CN 202011117991A CN 112459809 B CN112459809 B CN 112459809B
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- way valve
- hydraulic control
- alarm device
- protection plate
- side protection
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/46—Telescopic props with load-measuring devices; with alarm devices
- E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
The application provides an automatic alarm device and method for fully mechanized mining face end, wherein the device comprises a first hydraulic control one-way valve, a second hydraulic control one-way valve and a pressure switch, and a three-level side protection plate is retracted when a coal mining machine mines coal to a machine head, so that when the first hydraulic control one-way valve is conducted, the pressure switch is closed according to the pressure of static water of a system, and an alarm device is started. Therefore, the alarm device can be automatically controlled to be turned on according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
Description
Technical Field
The application relates to the technical field of artificial intelligence, in particular to an automatic alarm device for a fully mechanized coal mining face end.
Background
When the coal cutter of the underground fully mechanized mining face cuts coal to the head and the tail, a warning is required to be sent out so as to avoid the danger that workers near the upper and lower outlets and workers passing through the end head are likely to be hit and injured by coal gangue brought up by a roller of the coal cutter.
In the related technology, the start-stop of the fully mechanized mining face end alarm device needs manual operation, namely when the coal cutter cuts to the machine head, the machine head worker is responsible for pressing a start-stop button, the alarm device is turned on, and a red alarm lamp flickers to play a role of warning; when the coal mining machine cuts coal to the machine tail, the machine head worker pulls the start-stop button up, the warning lamp is turned off, and the warning personnel can safely enter the working face. However, the head worker may forget to press the start-stop button, so that the alarm device cannot be started in time, an expected warning effect cannot be achieved, and when the worker enters the working face, whether the coal machine is at the head cannot be accurately judged, so that certain potential safety hazards exist.
Disclosure of Invention
The present application is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the automatic alarm device for the fully mechanized coal mining face end achieves the function of controlling the alarm device to automatically alarm according to the coal mining position of the coal mining machine, and solves the technical problem that certain potential safety hazards exist when existing manual operation alarm devices are not timely.
An embodiment of a first aspect of the present application provides a fully-mechanized coal mining face end automatic alarm device, including:
the hydraulic support comprises a first hydraulic control one-way valve and a second hydraulic control one-way valve, wherein the first hydraulic control one-way valve and the second hydraulic control one-way valve are arranged on the hydraulic support; wherein, the hydraulic support is provided with a three-stage side protection plate;
and the pressure switch is connected with the first hydraulic control one-way valve, the second hydraulic control one-way valve and the alarm device and used for enabling the coal mining machine to withdraw the three-stage side protection plate to the machine head for mining coal, so that when the first hydraulic control one-way valve is switched on, the pressure switch is closed according to the pressure of system static pressure water to start the alarm device.
The pressure switch is also used for the coal mining machine to beat the three-stage side protection plate to mine coal at the tail, so that the first hydraulic control one-way valve is closed, and when the second hydraulic control one-way valve is switched on, the pressure switch is switched off according to the pressure relief condition of the pressure relief pipeline, so as to close the alarm device.
The device further comprises:
and one end of the bidirectional lock is connected to the third-stage side protection plate, the other end of the bidirectional lock is respectively connected to the first hydraulic control one-way valve and the second hydraulic control one-way valve, and the bidirectional lock is used for controlling the first hydraulic control one-way valve to be conducted when the third-stage side protection plate is retracted.
The bidirectional lock is also used for controlling the conduction of the second hydraulic control one-way valve when the third-stage side protection plate is knocked out.
Optionally, the alarm device is a buzzer and/or a warning light.
The automatic alarm device for the end of the fully mechanized mining face comprises a first hydraulic control one-way valve, a second hydraulic control one-way valve and a pressure switch, wherein a three-level side protection plate is retracted when a coal mining machine mines coal from a machine head, so that when the first hydraulic control one-way valve is conducted, the pressure switch is closed according to the pressure of static water of a system, and alarm equipment is started. Therefore, the alarm device can be automatically controlled to be turned on according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
The embodiment of the second aspect of the application provides an automatic alarm method for a fully mechanized coal mining face end, which comprises the following steps:
when the coal mining machine is determined to mine coal to the machine head, the three-stage side protection plate is retracted to control the conduction of the first hydraulic control one-way valve;
when the first hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be closed according to the pressure of system static pressure water so as to start the alarm device;
the method further comprises the following steps:
when the coal mining machine is determined to mine coal to the machine tail, the three-stage side protection plate is punched out to control the first hydraulic control one-way valve to be closed and control the second hydraulic control one-way valve to be conducted;
and when the second hydraulic control one-way valve is determined to be switched on, the pressure switch is controlled to be switched off according to the pressure relief condition of the pressure relief pipeline so as to close the alarm device.
According to the automatic alarm method for the fully mechanized coal mining face end, when the coal mining machine is determined to mine coal to the machine head, the three-stage side protection plate is retracted to control the first hydraulic control one-way valve to be conducted, and when the first hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be closed according to the pressure of system static pressure water to start the alarm device. Therefore, the alarm device is automatically controlled to be started according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
An embodiment of a third aspect of the present application provides an automatic alarm device for fully mechanized coal mining face ends, including:
the control module is used for determining that the coal mining machine recovers coal to the machine head, and the three-stage side protection plate is retracted to control the first hydraulic control one-way valve to be conducted;
the starting module is used for controlling the pressure switch to be closed according to the pressure of the system static pressure water when the first hydraulic control one-way valve is determined to be conducted so as to start the alarm device;
and the closing module is used for controlling the pressure switch to be switched off according to the pressure relief condition of the pressure relief pipeline when the second hydraulic control one-way valve is determined to be switched on so as to close the alarm device.
According to the automatic alarm device for the fully mechanized mining face end, when the coal mining machine is determined to mine coal to the machine head, the three-level side protection plate is retracted to control the first hydraulic control one-way valve to be conducted, and when the first hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be closed according to the pressure of system static pressure water to start the alarm device. Therefore, the alarm device is automatically controlled to be started according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
The embodiment of the fourth aspect of the application provides computer equipment, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the automatic alarm method for the fully mechanized mining face end is realized.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an automatic alarm device for a fully mechanized mining face end provided by an embodiment of the present application;
fig. 2 is a schematic structural diagram of another automatic alarm device for a fully mechanized mining face end provided by the embodiment of the present application;
fig. 3 is a schematic flow chart of an automatic alarm method for a fully mechanized mining face end provided by the embodiment of the application;
FIG. 4 is another automatic alarm method for the end of the fully mechanized mining face provided by the embodiment of the application;
fig. 5 is a schematic structural diagram of an automatic alarm device for a fully mechanized mining face end provided by the embodiment of the application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The automatic alarm device and method for the fully mechanized mining face end head of the embodiment of the application are described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of an automatic alarm device for a fully mechanized mining face end provided by an embodiment of the present application.
As shown in fig. 1, the automatic alarm 100 for the fully mechanized mining face tip may include: the hydraulic control system comprises a first hydraulic control one-way valve 110, a second hydraulic control one-way valve 120, a three-stage side protection plate 130, a pressure switch 140 and alarm equipment 150.
The first hydraulic control one-way valve 110 and the second hydraulic control one-way valve 120 are both disposed on the hydraulic support, and the hydraulic support is further provided with a third-stage side protection plate 130.
It should be explained that the fully mechanized coal mining face, also called as a comprehensive mechanized coal mining face, refers to a coal mining face with a hydraulic support, a high-power scraper conveyor, and a double-drum shearer.
Alternatively, a pilot operated check valve is a valve that relies on pilot fluid pressure to reverse flow through the check valve. The hydraulic control one-way valve is a device which can only flow along the water inlet and can not return media at the water outlet, so the hydraulic control one-way valve can also be called as a check valve.
In the embodiment of the present application, when the coal mining machine mines coal from the machine head, the third-stage side protection plate 130 is retracted, so that the first hydraulic control one-way valve 110 is turned on, and the pressure switch 140 is controlled to be closed according to the pressure of the system static pressure water, so as to turn on the alarm device 150.
It should be noted that the retraction and deployment of the third-stage side protection plate 130 can be controlled by the jack of the third-stage side protection plate 130, and the retraction circuit of the third-stage side protection plate 130 is connected to the control circuits of the first hydraulic-control one-way valve 110 and the second hydraulic-control one-way valve 120. That is, the jack of the third-stage side protection plate 130 is controlled to retract, so that when the third-stage side protection plate 130 is retracted, the first hydraulic control one-way valve 110 is turned on; the second hydraulic control check valve 120 is turned on when the jack of the third-stage side protection plate 130 is controlled to extend to drive out the third-stage side protection plate 130.
In the embodiment of the present application, when the coal mining machine mines coal to the machine tail, the jack of the third-level side protection plate 130 is controlled to extend out to drive the third-level side protection plate 130, so that the first hydraulic control check valve 110 is closed, the second hydraulic control check valve 120 is turned on, and further, the pressure switch 140 is controlled to be turned off according to the pressure relief condition of the pressure relief pipeline, so as to turn off the alarm device 150.
Optionally, the alarm device 150 may be a buzzer, and when the alarm device 150 is turned on, the buzzer makes an alarm sound, so as to achieve the function of early warning; when the alarm device 150 is turned off, the buzzer is turned off to stop sounding an alarm.
Optionally, the alarm device 150 may also be a warning light, and when the alarm device 150 is turned on, the warning light flashes to perform an early warning function; when the alarm device 150 is turned off, the warning lamp is turned off to stop the early warning.
Optionally, the alarm device 150 may further be provided with a buzzer and a warning light at the same time, when the alarm device 150 is turned on, the buzzer sounds an alarm, and the warning light flashes at the same time, so as to perform an early warning function; when the alarm device 150 is turned off, both the buzzer and the warning lamp are turned off to stop the early warning.
The alarm device is not limited to the buzzer and the warning light, and may be other alarm devices, which is not limited herein.
The automatic alarm device for the fully mechanized mining face end comprises a first hydraulic control one-way valve, a second hydraulic control one-way valve and a pressure switch, wherein a three-level side protection plate is retracted when a coal mining machine mines coal from a machine head, so that when the first hydraulic control one-way valve is switched on, the pressure switch is closed according to the pressure of system static pressure water to start alarm equipment. Therefore, the alarm device can be automatically controlled to be turned on according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
On the basis of the above embodiment, referring to fig. 2, the automatic alarm device 100 for the fully mechanized mining face tip may further include: a bi-directional lock 160.
One end of the two-way lock 160 is connected to the third-stage side protection plate 130, and the other end is connected to the first hydraulic control one-way valve 110 and the second hydraulic control one-way valve 120 respectively.
Optionally, when the shearer drills coal to the head, the jack of the third-stage side protection plate 130 is controlled to retract the third-stage side protection plate 130, and at this time, the opening direction of the bidirectional lock 160 is controlled to control the first hydraulic control one-way valve 110 to be switched on.
Optionally, when the coal mining machine mines coal to the machine tail, the jack of the third-stage side protection plate 130 is controlled to extend to drive out the third-stage side protection plate 130, and at this time, the opening direction of the bidirectional lock 160 is controlled to control the second hydraulic control one-way valve 120 to be switched on.
In order to realize the embodiment, the embodiment of the application provides an automatic alarm method for the fully mechanized coal mining face end.
Fig. 3 is a schematic flow chart of an automatic alarm method for a fully mechanized coal mining face end provided in the embodiment of the present application.
As shown in fig. 3, the automatic alarm method for the fully mechanized mining face tip may include the following steps:
and 301, when the coal mining machine is determined to mine coal to the machine head, withdrawing the three-stage side protection plate to control the first hydraulic control one-way valve to be conducted.
It should be noted that the retraction and deployment of the third-stage side protection plate can be controlled according to the jack of the third-stage side protection plate, and the retraction loop of the third-stage side protection plate is communicated with the control loops of the first hydraulic control one-way valve and the second hydraulic control one-way valve.
In the embodiment of the application, when the coal mining machine mines coal from the machine head, the jack of the third-level side protection plate is controlled to retract, so that when the third-level side protection plate is retracted, the opening direction of the two-way lock is controlled, and the first hydraulic control one-way valve is conducted.
And step 302, when the first hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be closed according to the pressure of the system static pressure water, so that the alarm device is started.
Optionally, when it is determined that the first pilot-controlled check valve is turned on, the pressure switch may be controlled to be closed according to the pressure of the system static pressure water, so as to turn on the alarm device.
It should be noted that the alarm device may be a buzzer and/or a warning light, and may also be other alarm devices, which is not limited herein.
According to the automatic alarm method for the fully mechanized coal mining face end, when the coal mining machine is determined to mine coal to the machine head, the three-stage side protection plate is retracted to control the first hydraulic control one-way valve to be conducted, and when the first hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be closed according to the pressure of system static pressure water to start the alarm device. Therefore, the alarm device is automatically controlled to be started according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
In an actual scene, when the coal mining machine mines coal to the tail, personnel can safely enter a working face, and the early warning device needs to be controlled to be closed so as to remind the personnel of safely entering the working face. Fig. 4 is another automatic alarm method for the fully mechanized mining face tip according to the embodiment of the present disclosure.
As shown in fig. 4, the automatic alarm method for the fully mechanized mining face tip may further include the following steps:
It can be understood that when the coal mining machine is used for mining coal to the machine head, the alarm device needs to be controlled to be turned on to prompt that potential safety hazards exist on a working face of a worker, and when the coal mining machine is used for mining coal to the machine tail, the alarm device needs to be controlled to be turned off to prompt that the worker can safely enter the working face.
Optionally, when the coal mining machine mines coal to the machine tail, the jack of the third-stage side protection plate is controlled to extend out to drive the third-stage side protection plate, and at the moment, the opening direction of the two-way lock is controlled, so that the first hydraulic control one-way valve is closed, and the second hydraulic control one-way valve is switched on.
And 402, when the second hydraulic control one-way valve is determined to be connected, controlling the pressure switch to be disconnected according to the pressure relief condition of the pressure relief pipeline so as to close the alarm device.
Optionally, it is determined that the first hydraulic control one-way valve is closed, and after the second hydraulic control one-way valve is switched on, the pressure switch is controlled to be switched off according to the pressure relief condition of the pressure relief pipeline, so that the alarm device is closed, and a worker is reminded of safely entering the working face.
According to the automatic alarm method for the fully mechanized mining face end, when the coal mining machine is determined to mine coal to the tail, the three-level side protection plate is punched to control the first hydraulic control one-way valve to be closed, the second hydraulic control one-way valve is controlled to be conducted, and when the second hydraulic control one-way valve is determined to be conducted, the pressure switch is controlled to be disconnected according to the pressure relief condition of the pressure relief pipeline, so that the alarm device is turned off. Therefore, the alarm device is automatically controlled to be closed according to the moving position of the coal mining machine, so that workers can safely enter the coal mining working face.
In order to realize the embodiment, the application provides an automatic alarm device for the end of a fully mechanized mining face.
Fig. 5 is a schematic structural view of an automatic alarm device for a fully mechanized mining face end provided by the embodiment of the application.
As shown in fig. 5, the automatic alarm device 500 for the fully mechanized mining face tip may include: a control module 510 and a start module 520.
The control module 510 is configured to determine that the coal mining machine recovers coal to the machine head, and retract the third-stage side protection plate to control the first hydraulic control one-way valve to be switched on.
And the starting module 520 is used for controlling the pressure switch to be closed according to the pressure of the system static pressure water when the first hydraulic control one-way valve is determined to be conducted so as to start the alarm device.
As a possible scenario, the control module 510 may be further configured to determine that when the coal mining machine mines coal to the machine tail, a third-stage side protection plate is knocked out to control the first hydraulic control one-way valve to be closed, and control the second hydraulic control one-way valve to be turned on.
This combine and adopt working face end autoalarm 500 can also include:
and the closing module is used for controlling the pressure switch to be switched off according to the pressure relief condition of the pressure relief pipeline when the second hydraulic control one-way valve is determined to be switched on so as to close the alarm equipment.
As another possible scenario, the control module 510 is further configured to:
when the coal mining machine is determined to mine coal to the machine head, the three-stage side protection plate is retracted to control the opening direction of the bidirectional lock;
and controlling the first hydraulic control one-way valve to be conducted according to the opening direction of the two-way lock.
According to the automatic alarm device for the fully mechanized mining face end, when the coal mining machine is confirmed to mine coal to the machine head, the three-level side protection plate is retracted to control the first hydraulic control one-way valve to be conducted, and when the first hydraulic control one-way valve is confirmed to be conducted, the pressure switch is controlled to be closed according to the pressure of static pressure water of the system, so that the alarm device is started. Therefore, the alarm device can be automatically controlled to be turned on according to the coal mining position of the coal mining machine, the reliability of the alarm device is improved, the labor cost is saved, and the working efficiency is improved.
In order to implement the above embodiments, the present application provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and capable of running on the processor, and when the processor executes the computer program, the method for automatically alarming a fully mechanized mining face tip in the above embodiments is implemented.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (4)
1. An automatic alarm device for a fully mechanized mining face end comprises a first hydraulic control one-way valve, a second hydraulic control one-way valve, a three-stage side protection plate, a pressure switch, alarm equipment and a two-way lock;
the first hydraulic control one-way valve and the second hydraulic control one-way valve are both arranged on a hydraulic support, a three-stage side protection plate is arranged on the hydraulic support, and a contraction loop of the three-stage side protection plate is communicated with control loops of the first hydraulic control one-way valve and the second hydraulic control one-way valve;
the pressure switch is connected with the first hydraulic control one-way valve, the second hydraulic control one-way valve and the alarm device, when a coal mining machine mines coal from the machine head, the jack of the third-stage side protection plate is controlled to retract, the third-stage side protection plate is retracted, the first hydraulic control one-way valve is conducted, and the pressure switch is closed according to the pressure of system static pressure water to start the alarm device;
when the coal mining machine mines coal to the tail, a jack of the third-level side protection plate is controlled to extend out, the third-level side protection plate is knocked out, the first hydraulic control one-way valve is closed, the second hydraulic control one-way valve is conducted, and the pressure switch is disconnected according to the pressure relief condition of the pressure relief pipeline so as to close the alarm device;
one end of the bidirectional lock is connected with the three-stage side protection plate, the other end of the bidirectional lock is respectively connected with the first hydraulic control one-way valve and the second hydraulic control one-way valve, and the bidirectional lock is used for controlling the first hydraulic control one-way valve to be conducted when the three-stage side protection plate is retracted; the bidirectional lock is also used for controlling the conduction of the second hydraulic control one-way valve when the three-stage side protection plate is knocked out;
the automatic alarm method of the fully mechanized coal mining face end automatic alarm device is characterized by comprising the following steps:
when the coal mining machine is determined to mine coal to the machine head, the three-stage side protection plate is retracted to control the opening direction of the bidirectional lock,
controlling the first hydraulic control one-way valve to be conducted according to the opening direction of the two-way lock, and controlling a pressure switch to be closed according to the pressure of system static pressure water to start an alarm device when the first hydraulic control one-way valve is determined to be conducted;
when the coal mining machine is determined to mine coal to the machine tail, the three-stage side protection plate is driven out to control the opening direction of the two-way lock, the first hydraulic control one-way valve is controlled to be closed according to the opening direction of the two-way lock, the second hydraulic control one-way valve is controlled to be switched on, and when the second hydraulic control one-way valve is determined to be switched on, the pressure switch is controlled to be switched off according to the pressure relief condition of the pressure relief pipeline, so that the alarm device is switched off.
2. The fully mechanized mining face end automatic alarm device of claim 1, wherein the alarm device is a buzzer and/or a warning light.
3. The utility model provides a combine and adopt working face end autoalarm, its characterized in that, the device still includes:
the control module is used for determining that the coal mining machine recovers coal to the machine head, and the three-stage side protection plate is retracted to control the first hydraulic control one-way valve to be conducted;
and the opening module is used for controlling the pressure switch to be closed according to the pressure of the system static pressure water when the first hydraulic control one-way valve is determined to be switched on so as to open the alarm device.
4. Computer equipment, characterized in that it comprises a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the alarm method of the automatic alarm device for the fully mechanized mining face end according to any one of claims 1 to 3 when executing the program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117991.3A CN112459809B (en) | 2020-10-19 | 2020-10-19 | Automatic alarm device for fully mechanized coal mining face end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117991.3A CN112459809B (en) | 2020-10-19 | 2020-10-19 | Automatic alarm device for fully mechanized coal mining face end |
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| CN112459809A CN112459809A (en) | 2021-03-09 |
| CN112459809B true CN112459809B (en) | 2022-09-06 |
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| CN202011117991.3A Active CN112459809B (en) | 2020-10-19 | 2020-10-19 | Automatic alarm device for fully mechanized coal mining face end |
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| CN110374647B (en) * | 2019-07-19 | 2020-06-19 | 精英数智科技股份有限公司 | Monitoring method, device and system for preventing fully mechanized coal mining face from overtaking pillar and storage medium |
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