CN114178992B - Protection device of telescopic cold cutting machine for coal mine and use method - Google Patents
Protection device of telescopic cold cutting machine for coal mine and use method Download PDFInfo
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- CN114178992B CN114178992B CN202111582651.2A CN202111582651A CN114178992B CN 114178992 B CN114178992 B CN 114178992B CN 202111582651 A CN202111582651 A CN 202111582651A CN 114178992 B CN114178992 B CN 114178992B
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- chip microcomputer
- single chip
- pressure sensor
- infrared sensor
- spray head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
- B24C7/0015—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
- B24C7/0023—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a protection device of a telescopic cold cutting machine for a coal mine and a use method thereof. The protection device can expand the application range by extending and shortening the handheld telescopic rod; secondly, the front position of the spray head is effectively protected through the top plate, so that casualties can be avoided; and finally, the automatic cutting stop is realized by combining the infrared sensor and the pressure sensor, so that the double protection of the cold cutting device is realized.
Description
Technical Field
The invention relates to a protection device, in particular to a protection device of a telescopic cold cutting machine for a coal mine and a using method.
Background
In recent years, the coal mine safety production problem is widely concerned by people, and in coal mine underground production, cutting operation is often required to be carried out, such as anchor rod cutting, roadway maintenance, roadblock cleaning and the like. At present, the workman often adopts hydraulic pressure to cut or traditional cutting technique carries out the operation in the pit, can cause workman's construction inconvenience like this, and work efficiency is low to cutting heat effect and cutting spark that traditional cutting technique produced in the operation can arouse gas (coal dust) explosion accident.
In order to solve the problems, the invention provides a safe cold cutting technology which is suitable for the underground dangerous environment of flammable and explosive high-gas coal mines, namely a water jet cutting technology. However, the pressure (30-38 MPa) of a spray head of the existing underground cold cutting device is high, after the anchor rod and the equipment are cut, due to the fact that a protection device is not arranged in front of the spray head, casualties can be caused, potential safety hazards exist, the equipment cannot adjust the length, the application range is limited, and the efficiency is low.
Disclosure of Invention
The invention aims to provide a protection device of a telescopic cold cutting machine for a coal mine and a using method thereof. Firstly, the application range can be expanded by extending and shortening the handheld telescopic rod; secondly, the front position of the spray head is effectively protected through the top plate, so that casualties can be avoided; and finally, the automatic cutting stop is realized by combining the infrared sensor and the pressure sensor, so that the double protection of the cold cutting device is realized.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a protection device of scalable cold cut machine for coal mine, protection device include hand-held device and protective cradle, be equipped with pressure sensor and infrared ray sensor in the protective cradle, the protective cradle is installed before the shower nozzle of cold cut machine, and protection device still includes first singlechip, second singlechip and main control unit.
The input interface of the first single chip microcomputer is connected with the pressure sensor, the output interface of the first single chip microcomputer is connected with the main controller, the input interface of the second single chip microcomputer is connected with the infrared sensor, and the output interface of the second single chip microcomputer is connected with the main controller.
Furthermore, the handheld device comprises a handheld telescopic rod, a hose is sleeved inside the handheld telescopic rod, a spray head of the cold cutting machine is connected with the hose, a water spray nozzle of the spray head is a nozzle, and the spray head of the cold cutting machine is installed at the output end of the handheld telescopic rod.
Furthermore, one side of the handheld telescopic rod is fixed with a handheld handle, and the first single chip microcomputer, the second single chip microcomputer and the main controller are all installed in the handheld handle.
Further, the support includes the roof, and one side of roof is equipped with the bottom plate, is connected with the pillar of symmetric distribution between bottom plate and the roof perpendicularly, and pressure sensor is located the roof, and infrared ray sensor's emitter and receiving arrangement are located two pillars respectively.
A use method of a protective device of a telescopic cold cutting machine for a coal mine comprises the following steps:
through flexible handheld telescopic link, make cold cutting machine's shower nozzle reach suitable position, will treat the stock of cutting and insert between two pillars, cold cutting machine begins work, opens the water valve switch, and the nozzle produces high-speed rivers for rivers contact stock begins the cutting.
The infrared sensor and the pressure sensor are started to work simultaneously, the transmitting device of the infrared sensor emits infrared rays, and the water valve switch is automatically closed when the pressure sensor reaches a threshold value or the receiving device of the infrared sensor receives the infrared rays emitted by the transmitting device of the infrared sensor.
Furthermore, before the cutting is finished, all infrared rays emitted by the emitting device of the infrared sensor irradiate on the cut anchor rod, and at the moment, the receiving device of the infrared sensor does not receive a signal and continuously outputs a low-level signal.
When the anchor rod is cut, the receiving device of the infrared sensor receives the signal, the high-level signal is output to the second single chip microcomputer through the conversion circuit, the second single chip microcomputer sends a signal to the main controller, then the water valve switch is closed, and automatic cutting stopping is achieved.
Simultaneously, because the pressure of shower nozzle is great to can not guarantee that rivers are used for cutting the stock completely, can spout the condition of roof, so when cutting the stock, pressure sensor on the roof lasts receives pressure signal, and pressure sensor can give first singlechip with signal transmission.
When the work of cutting the anchor rod is completed, the spray head can be continuously sprayed to the top plate, the threshold value of the pressure sensor can be reached at the moment, and a signal is output to the main controller, so that the water valve switch is closed.
Further, the pressure of the spray head 7 is 30-38MPa, and the threshold value of the pressure sensor is 33-37MPa.
The invention has the beneficial effects that:
1. the protection device starts the infrared sensor and the pressure sensor to work simultaneously, the transmitting device of the infrared sensor emits infrared rays, and the water valve switch is automatically closed when the pressure sensor reaches a threshold value or the receiving device of the infrared sensor receives the infrared rays emitted by the transmitting device of the infrared sensor, so that the automatic control of the cutting of the cold cutting machine is realized;
2. the protection device is safer on the whole structure, and the application range can be expanded by extending and shortening the handheld telescopic rod; secondly, the front position of the spray head is effectively protected through the top plate, so that casualties can be avoided; and finally, the automatic cutting stop is realized by combining the infrared sensor and the pressure sensor, so that the double protection of the cold cutting device is realized.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the protection device of the present invention;
FIG. 2 is a schematic view of a portion of the protective device of the present invention;
FIG. 3 is a schematic cross-sectional view of a protective device according to the present invention;
FIG. 4 is a schematic view of the internal structure of the handle of the present invention;
FIG. 5 is a flow chart of the use of the protection device of the present invention;
fig. 6 is a schematic view of the use of the protection device of the present invention.
In the figure: 1-a protective bracket, 11-a support, 12-a top plate, 14-a bottom plate, 2-a pressure sensor, 4-an infrared sensor, 7-a spray head, 6-a hand-held telescopic rod, 8-a handle, 9-a water valve switch, 10-a hose, 60-a spray nozzle, 20-a first singlechip, 20-a second singlechip, 40-a main controller and 50-an anchor rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The utility model provides a protection device of scalable cold cut machine for coal mine, protection device include hand-held device and protective cradle 1, as shown in fig. 1, fig. 3 and fig. 4, be equipped with pressure sensor 2 and infrared ray sensor 4 in the protective cradle 1, protective cradle 1 installs in front of cold cut machine's shower nozzle 7, and protection device still includes first singlechip 20, second singlechip 30 and main control unit 40.
The input interface of the first single chip microcomputer 20 is connected with the pressure sensor 2, the output interface of the first single chip microcomputer 20 is connected with the main controller 40, the input interface of the second single chip microcomputer 30 is connected with the infrared sensor 4, and the output interface of the second single chip microcomputer 30 is connected with the main controller 40.
The handheld device comprises a handheld telescopic rod 6, a handheld handle 8 is fixed on one side of the handheld telescopic rod 6, a hose 10 is sleeved inside the handheld telescopic rod 6, a spray head 7 of the cold cutting machine is connected with the hose 10, a water spray nozzle of the spray head 7 is a spray nozzle 60, and the spray head 7 of the cold cutting machine is installed at the output end of the handheld telescopic rod 6.
The first single chip microcomputer 20, the second single chip microcomputer 30 and the main controller 40 are all installed in the handheld handle 8.
The bracket 1 comprises a top plate 12, as shown in fig. 2, a bottom plate 14 is arranged on one side of the top plate 12, symmetrically distributed pillars 11 are vertically connected between the bottom plate 14 and the top plate 12, the pressure sensor 2 is positioned on the top plate 12, and the emitting device and the receiving device of the infrared sensor 4 are respectively positioned on the two pillars 11.
A method for using a protection device of a retractable cold cutting machine for coal mines, as shown in fig. 5 and 6, comprises the following steps:
the anchor rod 50 to be cut is inserted between the two support columns 11, the spray head 7 of the cold cutting machine reaches a proper position through the telescopic handheld telescopic rod 6, the cold cutting machine starts to work, the water valve switch 9 is opened, the spray nozzle 60 generates high-speed water flow, and the water flow contacts the anchor rod 50 to start cutting.
The infrared sensor 4 and the pressure sensor 2 are started to work simultaneously, the transmitting device of the infrared sensor 4 emits infrared rays, and the water valve switch 9 is automatically closed when the pressure sensor 2 reaches a threshold value or the receiving device of the infrared sensor 4 receives the infrared rays emitted by the transmitting device of the infrared sensor 4.
Before the cutting is finished, infrared rays are irradiated on the cut anchor rod 50, the receiving device of the infrared sensor 4 does not receive signals and continuously outputs low-level signals, when the cutting of the anchor rod 50 is finished, the receiving device of the infrared sensor 4 receives the signals and outputs high-level signals to the second single chip microcomputer 30 through the conversion circuit, the second single chip microcomputer 30 sends signals to the main controller 40, then the water valve switch 9 is closed, and the automatic cutting stop is achieved.
Meanwhile, the pressure of the nozzle 7 is relatively high (30-38 MPa), the water flow cannot be guaranteed to be completely used for cutting the anchor rod 50, and the water flow can be sprayed to the top plate 12, so that when the anchor rod 50 is cut, the pressure sensor 2 on the top plate 12 continuously receives a pressure signal, and the pressure sensor 2 transmits the signal to the first single chip microcomputer 20.
When the operation of cutting the anchor rod 50 is completed, the spray head 7 continues to spray the top plate 12, and the threshold value (35 MPa) of the pressure sensor 2 is reached, and a signal is output to the main controller 40, so that the water valve switch 9 is turned off.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (2)
1. A use method of a protection device of a telescopic cold cutting machine for a coal mine is characterized in that the protection device comprises a handheld device and a protection support (1), and is characterized in that a pressure sensor (2) and an infrared sensor (4) are arranged in the protection support (1), the protection support (1) is arranged in front of a spray head (7) of the cold cutting machine, and the protection device further comprises a first single chip microcomputer (20), a second single chip microcomputer (30) and a main controller (40);
an input interface of the first single chip microcomputer (20) is connected with the pressure sensor (2), an output interface of the first single chip microcomputer (20) is connected with the main controller (40), an input interface of the second single chip microcomputer (30) is connected with the infrared sensor (4), and an output interface of the second single chip microcomputer (30) is connected with the main controller (40);
the hand-held device comprises a hand-held telescopic rod (6), a hose (10) is sleeved in the hand-held telescopic rod (6), a spray head (7) of the cold cutting machine is connected with the hose (10), a water spray nozzle of the spray head (7) is a nozzle (60), and the spray head (7) of the cold cutting machine is installed at the output end of the hand-held telescopic rod (6);
a handheld handle (8) is fixed on one side of the handheld telescopic rod (6), and the first single chip microcomputer (20), the second single chip microcomputer (30) and the main controller (40) are all installed in the handheld handle (8);
the support (1) comprises a top plate (12), a bottom plate (14) is arranged on one side of the top plate (12), symmetrically distributed struts (11) are vertically connected between the bottom plate (14) and the top plate (12), the pressure sensor (2) is positioned on the top plate (12), and a transmitting device and a receiving device of the infrared sensor (4) are respectively positioned on the two struts (11);
wherein, the use method is as follows: the spray head (7) of the cold cutting machine reaches a proper position through the telescopic handheld telescopic rod (6), the anchor rod (50) to be cut is inserted between the two support columns (11), the cold cutting machine starts to work, the water valve switch (9) is opened, and the spray nozzle (60) generates high-speed water flow, so that the water flow contacts the anchor rod (50) to start cutting;
starting the infrared sensor (4) and the pressure sensor (2), wherein the two sensors work simultaneously, the transmitting device of the infrared sensor (4) emits infrared rays, and when the pressure sensor (2) reaches a threshold value or the receiving device of the infrared sensor (4) receives the infrared rays emitted by the transmitting device of the infrared sensor (4), the water valve switch (9) is automatically closed;
before cutting is finished, all infrared rays emitted by an emitting device of the infrared sensor (4) irradiate on the cut anchor rod (50), and a receiving device of the infrared sensor (4) does not receive a signal and continuously outputs a low-level signal;
when the anchor rod (50) is cut, the receiving device of the infrared sensor (4) receives a signal, a high-level signal is output to the second single chip microcomputer (30) through the conversion circuit, the second single chip microcomputer (30) sends a signal to the main controller (40) to close the water valve switch (9), and automatic cutting stop is achieved;
meanwhile, the pressure of the spray head (7) is high, the water flow cannot be guaranteed to be completely used for cutting the anchor rod (50), and the water flow can be sprayed to the top plate (12), so that when the anchor rod (50) is cut, the pressure sensor (2) on the top plate (12) continuously receives a pressure signal, and the pressure sensor (2) can transmit the signal to the first single chip microcomputer (20);
when the work of cutting the anchor rod (50) is finished, the spray head (7) can continuously spray to the top plate (12), the threshold value of the pressure sensor (2) is reached, and a signal is output to the main controller (40), so that the water valve switch (9) is closed.
2. The use method of the protection device of the retractable cold cutting machine for the coal mine according to claim 1, wherein the pressure of the spray head 7 is 30-38MPa, and the threshold value of the pressure sensor is 33-37MPa.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582651.2A CN114178992B (en) | 2021-12-22 | 2021-12-22 | Protection device of telescopic cold cutting machine for coal mine and use method |
| PCT/CN2022/101275 WO2023115867A1 (en) | 2021-12-22 | 2022-06-24 | Protection device for telescopic cold cutting machine for coal mine, and method of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111582651.2A CN114178992B (en) | 2021-12-22 | 2021-12-22 | Protection device of telescopic cold cutting machine for coal mine and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114178992A CN114178992A (en) | 2022-03-15 |
| CN114178992B true CN114178992B (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111582651.2A Active CN114178992B (en) | 2021-12-22 | 2021-12-22 | Protection device of telescopic cold cutting machine for coal mine and use method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114178992B (en) |
| WO (1) | WO2023115867A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178992B (en) * | 2021-12-22 | 2022-12-06 | 安徽理工大学 | Protection device of telescopic cold cutting machine for coal mine and use method |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT380422B (en) * | 1984-04-25 | 1986-05-26 | Ver Edelstahlwerke Ag | LIQUID JET CUTTER |
| CA2031230A1 (en) * | 1990-11-30 | 1992-05-31 | Andre Christian Langlois | Rock bolt cutter |
| CN101947756B (en) * | 2010-09-10 | 2012-06-27 | 山西晋城无烟煤矿业集团有限责任公司 | Underground absorption water jet cutting system of coal mine |
| CN102166733B (en) * | 2011-01-06 | 2013-02-06 | 徐州中矿永宏科技有限公司 | Portable abrasive water jet cutting machine used in coal mine |
| EP2617540B1 (en) * | 2012-01-20 | 2014-03-19 | Alstom Technology Ltd | Impact baffle for controlling high-pressure fluid jets |
| DE102013220729B4 (en) * | 2013-10-14 | 2018-02-08 | Trumpf Laser Gmbh | Laser processing machine and protective housing for processing a workpiece |
| CN204639937U (en) * | 2015-06-02 | 2015-09-16 | 中国石油天然气第七建设公司 | Hand-held abrasive material water-jet cutting device |
| CN106272114B (en) * | 2016-10-08 | 2018-06-29 | 安徽理工大学 | A kind of mining magnetic reinforced moves back anchor water jet cutting equipment |
| CN206597985U (en) * | 2017-02-13 | 2017-10-31 | 麻城市立林金属制品股份有限公司 | A kind of wire cutting machine device with infrared acquisition function |
| CN107053019A (en) * | 2017-05-20 | 2017-08-18 | 奥拓福水刀有限公司 | The hand-held cutting gun of fire-fighting is cut in a kind of cold cut |
| CN109887679B (en) * | 2017-10-11 | 2020-08-18 | 杭州富通电线电缆有限公司 | Manufacturing method of coaxial cable |
| CN207836588U (en) * | 2017-12-13 | 2018-09-11 | 成都市烨轩农业开发有限公司 | A kind of lift pesticide spraying device |
| CN110329834A (en) * | 2019-06-26 | 2019-10-15 | 安徽文博纸品印刷有限公司 | A kind of former cutting apparatus used for paper processing of packing case |
| CN111958491B (en) * | 2020-07-29 | 2022-04-15 | 昆明理工大学 | Follow-on high pressure water jet cuts rock device |
| CN112706080B (en) * | 2020-12-15 | 2022-04-22 | 安徽理工大学 | Double-module anchor rod cutting device |
| CN112775847A (en) * | 2020-12-30 | 2021-05-11 | 上海市建筑装饰工程集团有限公司 | Sand washing method for oil dirt pollution on surface of historical building preservation and repair |
| CN113718773B (en) * | 2021-08-24 | 2022-09-23 | 南京吉欧地下空间科技有限公司 | High-pressure water jet assisted pile pulling equipment and construction method |
| CN114178992B (en) * | 2021-12-22 | 2022-12-06 | 安徽理工大学 | Protection device of telescopic cold cutting machine for coal mine and use method |
-
2021
- 2021-12-22 CN CN202111582651.2A patent/CN114178992B/en active Active
-
2022
- 2022-06-24 WO PCT/CN2022/101275 patent/WO2023115867A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN114178992A (en) | 2022-03-15 |
| WO2023115867A1 (en) | 2023-06-29 |
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