CN209908498U - Voice alarm device for coal mining machine - Google Patents
Voice alarm device for coal mining machine Download PDFInfo
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- CN209908498U CN209908498U CN201920277317.8U CN201920277317U CN209908498U CN 209908498 U CN209908498 U CN 209908498U CN 201920277317 U CN201920277317 U CN 201920277317U CN 209908498 U CN209908498 U CN 209908498U
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Abstract
The utility model discloses a voice alarm device for coal-winning machine, the device includes: a power amplifier and a speaker; the power amplifier is installed in an explosion-proof electric cabinet of the coal mining machine, the loudspeaker is installed on a cover plate of the explosion-proof electric cabinet, and the power amplifier is connected with the loudspeaker through a through-wall cable. The utility model discloses a voice alarm device for coal-winning machine adopts split type design, arranges the lower power amplifier of spoilage in the explosion-proof electric cabinet of coal-winning machine in, and is better to power amplifier's protection effect. The loudspeaker is arranged on the cover plate of the explosion-proof electric control box of the coal mining machine, and when the loudspeaker is damaged by dust, water vapor and other factors in field use, the loudspeaker exposed outside is easy to replace. Compared with the prior art, need not to open explosion-proof electric cabinet, and only need change alone the speaker can, reduce hardware maintenance cost, reduce labour's consumption.
Description
Technical Field
The utility model relates to a coal mining apparatus technical field especially relates to a voice alarm device for coal mining machine.
Background
The coal mining machine is one of important devices for realizing mechanization and modernization of coal mine production, and the purposes of reducing physical labor, improving safety and achieving high yield, high efficiency and low consumption can be achieved by performing mechanical coal mining through the coal mining machine. The coal mining machine is provided with the voice alarm device which is used for carrying out voice alarm to send out alarm information when the working state of the coal mining machine changes or the work is abnormal, so that the working personnel can conveniently master the running condition of the coal mining machine in real time.
The voice alarm device for the coal mining machine comprises a loudspeaker and a power amplifier, wherein the power amplifier is used for amplifying weak electric signals from a signal source, and the loudspeaker converts the amplified electric signals into vibration signals for voice broadcasting. The loudspeaker and the power amplifier are installed in the same explosion-proof shell and then packaged, so that explosion-proof and intrinsic safety are realized.
Designers have found that the prior art suffers from at least the following problems: dust, water and the like in a coal mining working site easily enter the loudspeaker to cause damage to the loudspeaker, the explosion-proof shell is required to be opened when the loudspeaker is replaced, the disassembly and the assembly are inconvenient, and the hardware maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
For the technical problem who exists among the solution above-mentioned prior art, the utility model provides a voice alarm device for coal-winning machine. The specific technical scheme is as follows:
a voice warning device for a coal mining machine, the device comprising: a power amplifier and a speaker; the power amplifier is installed in an explosion-proof electric cabinet of the coal mining machine, the loudspeaker is installed on a cover plate of the explosion-proof electric cabinet, and the power amplifier is connected with the loudspeaker through a through-wall cable.
In one possible design, the device further comprises a main control unit and a control board, wherein the main control unit is connected with the control board, the control board is connected with the power amplifier, the main control unit sends an instruction to the control board, and the control board sends corresponding audio data to the power amplifier according to the instruction.
In one possible design, a plurality of sets of sound data are stored in the control board, and the plurality of sets of sound data correspond to a plurality of instructions of the main control unit, and are used for converting the sound data into corresponding audio data under the instructions of the main control unit and sending the audio data to the power amplifier.
In one possible design, the master control unit, the control board and the power amplifier are connected by a CAN bus.
In one possible design, the control board supplies power to a 12V power supply.
In one possible design, the explosion-proof electric cabinet cover plate is provided with a mounting counter bore, and the loudspeaker is detachably embedded into the mounting counter bore.
In one possible design, the mounting counterbore is of a tapered configuration.
In one possible design, the speaker is fixed in the mounting counter bore by bolts.
In one possible design, the speaker is secured within the mounting counterbore by a snap fit.
In one possible design, the outer enclosure of the loudspeaker is fitted with a dust-proof device.
The utility model discloses technical scheme's main advantage as follows:
the utility model discloses a voice alarm device for coal-winning machine adopts split type design, arranges the lower power amplifier of spoilage in the explosion-proof electric cabinet of coal-winning machine in, and is better to power amplifier's protection effect. The loudspeaker is arranged on the cover plate of the explosion-proof electric control box of the coal mining machine, and when the loudspeaker is damaged by dust, water vapor and other factors in field use, the loudspeaker exposed outside is easy to replace. Compared with the prior art, need not to open explosion-proof electric cabinet, and only need change alone the speaker can, reduce hardware maintenance cost, reduce labour's consumption.
Drawings
The accompanying drawings, which are set forth herein, serve to provide a further understanding of the embodiments of the present invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are illustrative of the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic view of a connection relationship of a voice alarm device for a coal mining machine according to an embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The technical solution provided by the embodiments of the present invention is described in detail below with reference to the accompanying drawings.
In a first aspect, an embodiment of the present invention provides a voice alarm device for a coal mining machine, as shown in fig. 1, the device includes: a power amplifier and a speaker. The power amplifier is installed in the explosion-proof electric cabinet of the coal mining machine, the loudspeaker is installed on the cover plate of the explosion-proof electric cabinet of the coal mining machine, and the power amplifier and the loudspeaker are connected through a through-wall cable.
The embodiment of the utility model provides a voice alarm device for coal-winning machine adopts split type design, arranges the lower power amplifier of spoilage in the explosion-proof electric cabinet of coal-winning machine in, and is better to power amplifier's protection effect. The loudspeaker is arranged on the cover plate of the explosion-proof electric control box of the coal mining machine, and when the loudspeaker is damaged by dust, water vapor and other factors in field use, the loudspeaker exposed outside is easy to replace. Compared with the prior art, need not to open explosion-proof electric cabinet, and only need change alone the speaker can, reduce hardware maintenance cost, reduce labour's consumption.
Optionally, as shown in fig. 1, the embodiment of the utility model provides a voice alarm device for coal mining machine still includes main control unit and control panel, and main control unit is connected with the control panel, and the control panel is connected with power amplifier, and main control unit sends the instruction to the control panel, and the control panel sends corresponding audio data to power amplifier according to the instruction.
According to the arrangement, the voice alarm device for the coal mining machine can send different audio data to alarm under the instruction of the main control unit, alarm information is diversified, different audio data correspond to different working conditions of the coal mining machine, a worker can conveniently directly obtain the working condition of the current coal mining machine according to the audio data, and working efficiency is improved.
As to how the control board transmits corresponding audio data to the power amplifier according to the instruction of the main control unit, the following example illustrates: the control panel is internally stored with a plurality of groups of sound data, the plurality of groups of sound data correspond to a plurality of instructions of the main control unit and are used for converting the sound data into corresponding audio data under the instruction of the main control unit and sending the audio data to the power amplifier.
The control panel stores a plurality of groups of sound data in advance, and establishes a corresponding relation between the sound data and the instructions of the main control unit. After the main control unit sends an instruction to the control panel, sound data corresponding to the instruction is retrieved inside the control panel and is converted into corresponding audio data after being called, and the audio data is amplified by the power amplifier and then is transmitted to the loudspeaker for voice broadcasting.
Optionally, the main control unit, the control board and the power amplifier are connected by a CAN (Controller Area Network) bus, so as to implement real-time data interaction.
Wherein, the main control unit and the control panel can be positioned in the explosion-proof electric control box
The embodiment of the utility model provides an among the voice alarm device for the coal-winning machine, the control panel is 12V mains operated. The low-voltage power supply is adopted for supplying power, so that the safety is high, the power consumption is low, and the control panel is convenient to operate for a long time to receive the instruction of the main control unit in real time.
The embodiment of the utility model provides an in, the speaker is installed on explosion-proof electrical cabinet apron, in order to play the guard action to the speaker, is provided with the installation counter bore on the explosion-proof electrical cabinet apron, in the speaker detachably embedding installation counter bore. So set up, make the part of speaker protrusion explosion-proof electrical cabinet apron less, reduce the speaker spoilage because of colliding with and leading to.
Optionally, the mounting counter bore is of a conical structure to match the structure of the loudspeaker, so as to facilitate the mounting of the loudspeaker.
The embodiment of the utility model provides an in, in the speaker detachably embedding installation counter bore to in the speaker is changed, as an example, the speaker passes through the bolt fastening in the installation counter bore. In this example, the outer edge of the speaker may be provided with an ear plate, the ear plate does not affect the normal embedding of the speaker into the mounting counter bore, and after the speaker is embedded into the mounting counter bore, the ear plate is in contact with the outer surface of the cover plate of the explosion-proof electric cabinet. The lug plate is provided with a through hole, a screw hole is formed in the position, corresponding to the through hole, of the explosion-proof electric cabinet cover plate, and the bolt penetrates through the through hole in the lug plate to be inserted into and fixed in the screw hole in the explosion-proof electric cabinet cover plate so as to detachably fix the loudspeaker on the explosion-proof electric cabinet cover plate.
As another example, the speaker is secured within the mounting counterbore by a snap fit. In this example, the catch and the catch of the snap may be provided on the outer wall of the speaker and the inner wall of the mounting counterbore, respectively. This buckle can be for one-way chucking structure and fastener can release the chucking under manpower drive, promptly, the speaker can get into the installation counter bore under the pressure effect in, the fastener chucking is fixed in the fastener, and the fastener can't break away from the fastener under the pulling force effect. When the loudspeaker is replaced, the worker applies force to enable the fastener to be released from the clamping, so that the loudspeaker can be taken out of the mounting counter bore.
The embodiment of the utility model provides an in, the speaker is in under the operational environment of many dusts and steam, in order to reduce the spoilage of speaker, increase of service life, dustproof equipment is equipped with to the outside cover of speaker.
For example, the dustproof equipment can be a filter screen covered outside the loudspeaker, the diameter of the mesh can be 1-3 mm (for example, 1mm, 2mm, 3mm and the like), and the dustproof equipment can have a good dust coal particle blocking effect and does not influence sound penetration. The edge of filter screen can be provided with the cornice, and the bolt passes the cornice and compresses tightly the filter screen and fix on explosion-proof automatically controlled case apron. The filter screen can be cubic, toper or hemisphere isotructure, only need can cover the dress in the speaker outside.
Furthermore, dustproof equipment is provided with a water absorption piece, the water absorption piece is made of a material which is good in water absorption performance and poor in sound absorption performance, and water vapor is prevented from entering a large amount to damage the loudspeaker on the premise that sound penetrating is not influenced.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper" and "lower" in this document are referred to the placement states shown in the drawings.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A voice alarm device for a coal mining machine is characterized by comprising: a power amplifier and a speaker;
the power amplifier is installed in an explosion-proof electric cabinet of the coal mining machine, the loudspeaker is installed on a cover plate of the explosion-proof electric cabinet, and the power amplifier is connected with the loudspeaker through a through-wall cable.
2. The voice alarm device for the coal mining machine according to claim 1, further comprising a main control unit and a control board, wherein the main control unit is connected with the control board, the control board is connected with the power amplifier, the main control unit sends an instruction to the control board, and the control board sends corresponding audio data to the power amplifier according to the instruction.
3. The voice alarm device for the coal mining machine according to claim 2, wherein a plurality of groups of voice data are stored in the control board, and the plurality of groups of voice data correspond to a plurality of instructions of the main control unit and are used for converting the voice data into corresponding audio data under the instruction of the main control unit and sending the audio data to the power amplifier.
4. The voice alarm device for the coal mining machine according to claim 2, wherein the main control unit, the control board and the power amplifier are connected through a CAN bus.
5. The voice alarm device for the coal mining machine according to claim 3, wherein the control board supplies power for a 12V power supply.
6. The voice alarm device for the coal mining machine according to claim 1, wherein a mounting counter bore is arranged on the explosion-proof electric cabinet cover plate, and the loudspeaker is detachably embedded in the mounting counter bore.
7. The voice alarm device for the coal mining machine according to claim 6, wherein the mounting counter bore is of a conical structure.
8. The audio alarm device for a coal mining machine according to claim 6, wherein the speaker is fixed in the mounting counter bore by a bolt.
9. The audio alarm device for a coal mining machine according to claim 6, wherein the speaker is fixed in the mounting counterbore by a snap fit.
10. The voice warning device for the coal mining machine according to claim 1, wherein an outer cover of the speaker is provided with a dustproof device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277317.8U CN209908498U (en) | 2019-03-05 | 2019-03-05 | Voice alarm device for coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277317.8U CN209908498U (en) | 2019-03-05 | 2019-03-05 | Voice alarm device for coal mining machine |
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| Publication Number | Publication Date |
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| CN209908498U true CN209908498U (en) | 2020-01-07 |
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| CN201920277317.8U Active CN209908498U (en) | 2019-03-05 | 2019-03-05 | Voice alarm device for coal mining machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854244A (en) * | 2019-03-05 | 2019-06-07 | 太重煤机有限公司 | Coalcutter phonetic alarm device |
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2019
- 2019-03-05 CN CN201920277317.8U patent/CN209908498U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854244A (en) * | 2019-03-05 | 2019-06-07 | 太重煤机有限公司 | Coalcutter phonetic alarm device |
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