CN107269280B - Coal rock recognition device based on cutting of drum shearer - Google Patents
Coal rock recognition device based on cutting of drum shearer Download PDFInfo
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- CN107269280B CN107269280B CN201710584965.3A CN201710584965A CN107269280B CN 107269280 B CN107269280 B CN 107269280B CN 201710584965 A CN201710584965 A CN 201710584965A CN 107269280 B CN107269280 B CN 107269280B
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- water
- coal
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- shearer
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral
Abstract
The invention relates to a coal rock recognition device based on cutting of a drum shearer, which comprises a protective sleeve, an installation support, a water sprayer, an ultrasonic transducer, a laser transmitter and a laser receiver, wherein the installation support is installed in the protective sleeve, the protective sleeve is installed on a shell of a rocker arm, and the water sprayer, the ultrasonic transducer, the laser transmitter and the laser receiver are all installed on the installation support. The invention has the beneficial effects that: the ultrasonic wave receiving and transmitting function of the ultrasonic transducer can take water flow sprayed by the water sprayer as a coupling medium, the coal rock interface is identified according to echo characteristics, laser is transmitted by the laser transmitter and received by the laser receiver and can be identified according to the laser characteristics, so that the coal rock interface identified by the echo characteristics and the coal rock interface identified by the laser characteristics can be compared, the identification capability of the drum shearer on the coal rock interface is improved, and the drum shearer can cut.
Description
Technical Field
The invention belongs to the technical field of coal mining engineering, and particularly provides a coal rock recognition device based on cutting of a drum shearer.
Background
The drum shearer is a complex mechanical device integrating a mechanical system and an electrical system and used for coal mining, and the mechanical coal mining can reduce physical labor and improve safety so as to achieve the purposes of high yield, high efficiency and low consumption. When a drum shearer carries out coal cutting, coal rock identification is a key for realizing coal mining automation, and various existing coal rock identification methods are available, such as a sensor method based on natural gamma ray radiation characteristics of coal rocks, a coal rock interface identification sensor method based on cutting force response of the drum shearer, a coal bed interface infrared detection method and the like, but the existing coal rock identification methods are not well applied due to immature technology and complex identification methods. In many cases, the height of the roller of the coal mining machine still needs to be manually adjusted on the underground working face by operators in the coal mining process, so that the height adjustment precision is low, the labor intensity of workers is high, and the coal mining quality is poor. Specifically, this is basically caused by the fact that the existing coal rock identification device is relatively complex and has poor adaptability.
Therefore, there is a need in the art for a new coal rock identification device based on the cutting of a shearer loader to solve the above problems.
Disclosure of Invention
The coal rock identification device aims to solve the problems pointed out by the background technology, namely the problems that the existing coal rock identification device is complex and poor in adaptability are solved. The invention provides a coal rock recognition device based on cutting of a drum shearer, which comprises a protective sleeve, an installation support, a water sprayer, an ultrasonic transducer, a laser transmitter and a laser receiver, wherein the installation support is installed in the protective sleeve, the protective sleeve is installed on a shell of a rocker arm of the shearer, the water sprayer, the ultrasonic transducer, the laser transmitter and the laser receiver are all installed on the installation support, the water sprayer can spray water flow to a coal rock interface, the ultrasonic transducer can transmit ultrasonic waves to the coal rock interface and receive echoes reflected by the coal rock interface, the laser transmitter can transmit laser to the coal rock interface, and the laser receiver can receive the laser reflected by the coal rock interface.
In the above-mentioned coal petrography recognition device's preferred technical scheme, the sprinkler including set up in shell on the installing support and set up in inhalant canal and the exhalant canal in the shell, inhalant canal with the exhalant canal is linked together.
In the preferable technical scheme of the coal rock recognition device, the water inlet channel and the water outlet channel are coaxial.
In the preferable technical scheme of the coal rock recognition device, a path of water is led out from a spraying water path outside a rocker arm of the roller coal mining machine or other water paths of the coal mining machine on the roller coal mining machine and is connected with a water inlet channel.
In the preferable technical scheme of the coal rock recognition device, the spray waterway outside the rocker arm of the drum shearer or other waterways of the shearer are connected with the water inlet channel through water pipes, and the water pipes are arranged along the length direction of the rocker arm.
In the preferable technical scheme of the coal rock recognition device, an electromagnetic flow valve is arranged in the water inlet channel and used for detecting the water quantity in the water outlet channel.
In a preferred technical scheme of the coal petrography recognition device, the electromagnetic flow valve is close to an inlet end of the water inlet channel.
In the preferable technical scheme of the coal rock recognition device, a pressure sensor is arranged in the water outlet channel and used for detecting the water pressure in the water outlet channel.
In the preferable technical scheme of the coal rock recognition device, the pressure sensor is close to the outlet end of the water outlet channel.
In the preferable technical scheme of the coal rock recognition device, the water sprayer is arranged at the bottom of the mounting bracket, and the ultrasonic transducer, the laser transmitter and the laser receiver are all mounted at the top of the mounting bracket.
In a preferred technical solution of the coal rock recognition apparatus, the shearer further includes a controller, and the controller is in signal connection with the ultrasonic transducer, the laser transmitter, and the laser receiver, respectively.
In the above preferred technical solution of the coal rock recognition device, a swing angle sensor is configured on the rocker arm of the coal mining machine, the controller is in signal connection with the swing angle sensor, and after receiving feedback signals of the ultrasonic transducer, the laser transmitter and the laser receiver, the controller can send a command signal to the swing angle sensor according to the recognition information of the coal rock so as to adjust the height of the drum of the coal mining machine, avoid the rock and perform coal cutting operation.
The invention provides a coal rock recognition device based on cutting of a drum shearer, which has the beneficial effects that: the water flow ejected by the water sprayer can be used as a coupling medium under the action of receiving and transmitting ultrasonic waves of the ultrasonic transducer, the coal-rock interface can be identified according to the echo characteristics, the laser transmitter transmits laser and the laser receiver receives laser, the coal-rock interface can be identified according to the laser characteristics, the coal-rock interface identified by the echo characteristics and the coal-rock interface identified by the laser characteristics can be compared, the identification capability of the drum shearer on the coal-rock interface is improved, the drum shearer can conveniently perform cutting operation, mutual correction can be realized, namely the coal-rock interface identified by the echo characteristics is used as a standard time, the identification of the laser characteristics can be corrected, and the identification of the echo characteristics can be corrected by taking the coal-rock interface identified by the laser characteristics as the standard time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a coal rock recognition apparatus of the present invention;
FIG. 2 is a schematic view of the installation of the coal rock identification apparatus of the present invention;
in the figure: 1. mounting a bracket; 2. a water sprayer; 3. an ultrasonic transducer; 4. a laser transmitter; 5. a laser receiver; 6. a protective sleeve; 7. a screw; 8. a coal rock recognition device; 9. a rocker arm; 10. and (3) a roller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the invention provides a coal rock recognition device based on cutting of a shearer loader, the coal rock recognition device comprises a mounting bracket 1, a water sprayer 2, an ultrasonic transducer 3, a laser transmitter 4, a laser receiver 5, a protective sleeve 6 and a screw 7, the mounting bracket 1 is mounted in the protective sleeve 6, the protective sleeve is mounted on a shell of a rocker arm of the rocker arm 6, the water sprayer 2, the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5 are all arranged on the mounting bracket 1, the water sprayer 2 can spray water flow to the coal-rock interface, the ultrasonic transducer 3 can transmit ultrasonic waves to the coal-rock interface and receive echo waves reflected by the coal-rock interface, the laser transmitter 4 can transmit laser to the coal rock interface, and the laser receiver 5 can receive the laser reflected from the coal rock interface. Through the design of the structure, the water flow sprayed by the water sprayer 2 can be used as a coupling medium through the action of transmitting and receiving ultrasonic waves of the ultrasonic transducer 3, further, the coal rock interface is identified according to the echo characteristics, the coal rock interface can be identified according to the laser characteristics by emitting laser by the laser emitter 4 and receiving the laser by the laser receiver 5, thereby comparing the coal-rock interface identified by the echo characteristics with the coal-rock interface identified by the laser characteristics, improving the identification capability of the shearer to the coal-rock interface, facilitating the shearer to carry out cutting operation, realizing mutual correction, namely, the coal rock interface identified by the echo characteristics is taken as the standard, the identification of the laser characteristics can be corrected, and the identification of the echo characteristics can be corrected by taking the coal-rock interface identified by the laser characteristics as a standard.
Preferably, the sprinkler 2 comprises a housing arranged on the mounting bracket 1, and a water inlet channel and a water outlet channel arranged in the housing, wherein the water inlet channel is communicated with the water outlet channel. Water can be introduced into the water outlet channel through the water inlet channel and is sprayed outwards through the water outlet channel.
Preferably, the water inlet channel and the water outlet channel are coaxial. Will inhalant canal with the exhalant canal sets up to coaxial can avoid reducing the water spray effect because 2 inside passageways of sprinkler are crooked.
Preferably, a path of water led out from a spraying water path outside a rocker arm of the drum shearer or other water paths of the shearer is connected with the water inlet channel.
Preferably, the spraying waterway or other waterways outside the rocker arm of the drum shearer are connected with the water inlet channel through water pipes, and the water pipes are arranged along the length direction of the rocker arm. In practical application, the water pipe can be mounted on the rocker arm through a U-shaped clamp and the like, so that the situation that the water pipe is broken due to interference or winding with the rocker arm is prevented.
Preferably, establish electromagnetic flow valve in the inhalant canal, electromagnetic flow valve is used for detecting the water pressure in the exhalant canal.
Preferably, the electromagnetic flow valve is adjacent to the inlet end of the water inlet passage.
Preferably, a pressure sensor is arranged in the water outlet channel and used for detecting the water pressure in the water outlet channel. Through pressure sensor can detect the water pressure in the exhalant canal, can control when water pressure is lower electromagnetic flow valve improves delivery pressure, can control when water pressure is higher electromagnetic flow valve reduces delivery pressure.
Preferably, the pressure sensor is close to the outlet end of the water outlet channel. The pressure sensor is arranged at the outlet end of the water outlet channel, so that the accuracy of detection data can be ensured.
Preferably, the water sprayer 2 is arranged at the bottom of the mounting bracket 1, and the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5 are all mounted at the top of the mounting bracket 1. With the arrangement of the structure, the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5 can be prevented from being damaged by the invasion of the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5 caused by the water sprayer 2 when spraying water flow.
Preferably, the shearer loader further comprises a controller in signal connection with the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5, respectively. The controller can control the ultrasonic transducer 3 to emit ultrasonic waves, and feed back the feedback echo signals to the controller for analysis through the ultrasonic transducer 3, and similarly, the controller can control the laser emitter 4 to emit laser, and feed back the feedback laser signals to the controller for analysis through the laser receiver 5.
Preferably, a swing angle sensor is configured on the rocker arm of the coal mining machine, the controller is in signal connection with the swing angle sensor, and after receiving feedback signals of the ultrasonic transducer 3, the laser transmitter 4 and the laser receiver 5, the controller can send a command signal to the swing angle sensor according to the identification information of the coal rock so as to adjust the height of the roller of the coal mining machine, avoid the rock and perform coal cutting operation. Through the design of the structure, the control flexibility and the operation safety of the coal mining machine can be further improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A coal rock recognition device based on cutting of a drum shearer comprises a protective sleeve, a mounting bracket, a water sprayer, an ultrasonic transducer, a laser transmitter and a laser receiver, wherein the mounting bracket is mounted in the protective sleeve;
the water sprayer comprises a shell arranged on the mounting bracket, and a water inlet channel and a water outlet channel which are arranged in the shell, wherein the water inlet channel is communicated with the water outlet channel;
a pressure sensor is arranged in the water outlet channel and used for detecting the water pressure in the water outlet channel;
the roller coal mining machine further comprises a controller, and the controller is in signal connection with the ultrasonic transducer, the laser transmitter and the laser receiver respectively;
the coal mining machine rocker arm is provided with a swing angle sensor, the controller is in signal connection with the swing angle sensor, and after receiving feedback signals of the ultrasonic transducer, the laser transmitter and the laser receiver, the controller can send command signals to the swing angle sensor according to identification information of coal rocks so as to adjust the height of the coal mining machine roller, avoid the rocks and carry out coal cutting operation.
2. The coal petrography recognition device of claim 1, wherein the inlet channel and the outlet channel are coaxial.
3. The coal petrography recognition device of claim 1, wherein a path of water is drawn from a spray waterway outside a shearer rocker arm or other waterways of the shearer and connected to the water inlet channel.
4. The coal petrography recognition device of claim 3, wherein, the shearer rocker arm outer spray water route or other water route of shearer is connected with the water inlet channel through a water pipe, and the water pipe is arranged along the length direction of the rocker arm.
5. The coal petrography recognition device of claim 1, wherein the pressure sensor is proximate an outlet end of the outlet water passageway.
6. The coal petrography recognition device of claim 1, wherein the water jet is disposed at a bottom of the mounting bracket, and the ultrasonic transducer, the laser transmitter, and the laser receiver are all mounted at a top of the mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584965.3A CN107269280B (en) | 2017-07-18 | 2017-07-18 | Coal rock recognition device based on cutting of drum shearer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584965.3A CN107269280B (en) | 2017-07-18 | 2017-07-18 | Coal rock recognition device based on cutting of drum shearer |
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| CN107269280A CN107269280A (en) | 2017-10-20 |
| CN107269280B true CN107269280B (en) | 2019-12-27 |
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| CN201710584965.3A Active CN107269280B (en) | 2017-07-18 | 2017-07-18 | Coal rock recognition device based on cutting of drum shearer |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653746A (en) * | 2018-12-26 | 2019-04-19 | 辽宁工程技术大学 | A kind of multilayer veil dust control device applied in driving face |
| CN109826626B (en) * | 2019-01-08 | 2020-10-20 | 浙江大学 | Intelligent coal mining machine cutting mode recognition system |
| CN113777108B (en) * | 2021-11-10 | 2022-01-18 | 河北工业大学 | Method, device and medium for identifying boundary of double-substance interface |
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| US6203111B1 (en) * | 1999-10-29 | 2001-03-20 | Mark Ollis | Miner guidance using laser and image analysis |
| CN201265418Y (en) * | 2008-09-01 | 2009-07-01 | 石家庄煤矿机械有限责任公司 | Automatic positioning and cutting system of development machine |
| CN101915103A (en) * | 2010-07-14 | 2010-12-15 | 毛允德 | Safe pointing and safe distance real-time monitoring system |
| CN104134074A (en) * | 2014-07-31 | 2014-11-05 | 中国矿业大学 | Coal and rock identification method based on laser scanning |
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