CN111271109A - Mining hydraulic support struts quality monitoring devices - Google Patents
Mining hydraulic support struts quality monitoring devices Download PDFInfo
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- CN111271109A CN111271109A CN202010157682.2A CN202010157682A CN111271109A CN 111271109 A CN111271109 A CN 111271109A CN 202010157682 A CN202010157682 A CN 202010157682A CN 111271109 A CN111271109 A CN 111271109A
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- 238000005065 mining Methods 0.000 title claims abstract description 52
- 238000012806 monitoring device Methods 0.000 title claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 15
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 12
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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Abstract
The invention discloses a mining hydraulic support supporting quality monitoring device, which comprises: the system comprises a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply pressure sensor, a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply attitude sensor, a mining intrinsic safety type multifunctional display terminal, a mining intrinsic safety type multifunctional display master station, a power supply, a cable and an upper computer. By adopting a wireless communication mode, the comprehensive support quality state information of each structural part, such as pitching and inclination angles, the height of the support, mining height, fluctuation of a working surface, resultant force action points, working resistance, column pressure, initial support force, cycle end resistance, cycle coming pressure, support torsion resistance, skewness, falling support, extrusion support, torsion resistance, irregular stress, fatigue, pressure overrun, roof cycle coming pressure and the like, is realized, and the multi-display mode is provided. The comprehensive and comprehensive monitoring of the supporting quality is realized, the use of safety, high efficiency and long service life of the hydraulic support is ensured, and the blank that the supporting quality of the hydraulic support is not comprehensively monitored is filled.
Description
Technical Field
The invention relates to a monitoring device for the supporting quality of a mining hydraulic support, in particular to a monitoring device for the supporting quality and the supporting state of a hydraulic support with high intelligent degree.
Background
The equipment of the fully mechanized mining face is developing towards the direction of automation and intellectualization, and the monitoring of the quality of the hydraulic support, which occupies the main investment of the fully mechanized mining equipment, is important. Because the environment of the fully mechanized mining face is severe, the coal seam conditions are complex and changeable, the research on the hydraulic support quality monitoring at home and abroad is relatively less at present, a hydraulic support pressure remote monitoring system based on configuration software is provided in some cases, the monitoring of the hydraulic support upright post pressure is realized, but only upright post pressure data is collected and a wired communication mode is adopted; some proposed implementation schemes are applied to a hydraulic support control system, a hydraulic support monitoring system of a coal mine fully-mechanized coal mining face is developed, but the system can be used only by being matched with a support electro-hydraulic controller independently developed by the system, and mainly aims at conventional parameter monitoring without a support quality monitoring and analyzing function. Therefore, in order to monitor the supporting quality of the hydraulic support in time, the invention is necessary to provide a monitoring device for the supporting quality of the mining hydraulic support.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a mining hydraulic support quality monitoring device.
The technical scheme adopted by the invention is as follows: the utility model provides a mining hydraulic support struts quality monitoring devices, includes: the system comprises a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply pressure sensor, a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply attitude sensor, a mining intrinsic safety type multifunctional display terminal, a mining intrinsic safety type multifunctional display master station, a power supply, a cable and an upper computer.
The mining intrinsic safety type micro-power consumption wireless and wired battery pressure supply sensor is arranged on liquid inlets of a stand column and a balance oil cylinder (a two-column hydraulic support, a four-column hydraulic support is arranged on a front stand column and a rear stand column) of a mining hydraulic support and used for measuring real-time pressure of the stand column and the balance oil cylinder. The pressure sensor is provided with a display screen which can display the current measured pressure and the battery power in real time;
the mining intrinsic safety type micro-power-consumption wireless and wired battery power supply attitude sensor is arranged on the planes of a top beam, a front connecting rod and a base steel plate of a mining hydraulic support, has the functions of measuring horizontal inclination and pitching double-axis angles, and can measure the relative double-axis angles of the top beam, the connecting rod and the base relative to the horizontal plane;
the mining intrinsic safety type multifunctional display terminal is arranged in front of a stand column of the support, acquires data of the pressure sensor and the attitude sensor in a wireless or wired communication mode, and displays information such as the stress state, the attitude state, the support quality and the like of the current support through a self-contained liquid crystal display screen after the analysis and the processing of the terminal;
the mining intrinsic safety type multifunctional display master station is arranged below a top beam of a first frame end support of a working face, so that all terminal data are acquired and uploaded to an upper computer, and the master station can display the current communication state of the master station through a liquid crystal display screen;
the power supply and the cable realize power supply and communication between the terminal and the main station, and the upper computer realizes the functions of storing, analyzing and displaying the support quality data of the hydraulic support.
The invention has the beneficial effects that: comprehensive monitoring and analysis of supporting quality information such as mining hydraulic support top beams, connecting rods and bases, elevation and inclination angles, support heights, working face mining heights, working face fluctuation angles, deviation conditions of resultant force action points, support working resistance, stand column pressure, balance oil cylinder pressure (front and rear stand column pressures of a two-column hydraulic support and a four-column hydraulic support), initial supporting force, cycle end resistance, cycle incoming pressure, support torsion degree and the like are achieved, comprehensive and comprehensive monitoring of supporting quality of the mining hydraulic supports is achieved, and safe, efficient and long-life use of the fully-mechanized face working face hydraulic supports is guaranteed.
Drawings
FIG. 1 is a layout diagram of a mining hydraulic support quality monitoring device of the invention;
FIG. 2 is a block diagram of a system for monitoring the supporting quality of a mining hydraulic support according to the present invention;
FIG. 3 is a flow chart of an attitude sensor of the mining hydraulic support supporting quality monitoring device of the invention;
FIG. 4 is a flow chart of a pressure state sensor of the mining hydraulic support quality monitoring device of the invention;
FIG. 5 is a flow chart of an intelligent terminal of the mining hydraulic support quality monitoring device;
the system comprises an intelligent main station 1, an intelligent attitude sensor 2, a pressure sensor 3, an intelligent terminal 4, a top beam 5, a column 6, a balance oil cylinder 7, a shield beam 8, a front connecting rod 9 and a base 10.
Detailed Description
The mining hydraulic support quality monitoring device is further explained in detail with reference to fig. 1-5, and it is obvious that the described embodiment is only a part of the embodiment of the invention, but not all of the embodiment. 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.
As shown in fig. 1 and 2, the mining hydraulic support quality monitoring device comprises: the system comprises a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply pressure sensor, a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply attitude sensor, a mining intrinsic safety type multifunctional display terminal, a mining intrinsic safety type multifunctional display master station, a power supply, a cable and an upper computer.
As shown in fig. 1, the intelligent main station 1 is installed below a top beam 5 of a first hydraulic support at an end, and is used for acquiring data of each terminal and then uploading the data to an upper computer, the attitude sensors 2 are respectively installed on the top beam 5, a front connecting rod 9 and a steel plate of a base 10 and are used for measuring elevation and inclination biaxial angles, the pressure sensors 3 are respectively installed on a stand column 6 and a balance oil cylinder 7 (two hydraulic supports, four hydraulic supports are installed on a front stand column and a rear stand column) and are used for measuring pressures of the stand column and the balance oil cylinder, the intelligent terminal 4 is installed in front of the stand column and is used for acquiring attitude and pressure data, and the data are analyzed, processed, displayed through a liquid crystal screen arranged on the intelligent terminal.
As shown in fig. 1 and 2, after the hydraulic support top beam 5, the connecting rod 9 and the base 6 measured by the attitude sensor 2 have double-axis data of horizontal inclination angle and pitch angle, the data are uploaded to a multi-functional display terminal in a wireless mode through a wireless radio frequency transceiver module, and the multi-functional display terminal can obtain the attitude information of the hydraulic support such as the height of the support, the mining height of a working face, the pitch angle of the working face and the like through analyzing the attitude data.
As shown in fig. 3, the power supply mode is determined when the attitude sensor is powered on for the first time, then system initialization is performed, whether a setting instruction exists or not is determined when the sensor enters a delay wait, after the setting instruction runs, a biaxial attitude angle value of the current device is collected and processed by the biaxial angle module, whether temperature compensation calibration is required or not is determined, battery power information is collected, after all information collection and processing are completed, data can be sent to the intelligent terminal in an RS485 bus form or a radio frequency form, then the sensor enters a delay wait setting instruction and enters a deep sleep state, and the sensor automatically wakes up to enter the next round of data collection after sleep is completed.
The attitude sensor has the working modes of continuous acquisition, timed active transmission, fluctuation acquisition and master-slave access, and has the functions of communication frequency band, transmission rate, transmitting power, air awakening, air data interception settable, battery power monitoring and the like. The attitude sensor is powered by an internal battery and is provided with a wired bus communication mode.
As shown in fig. 1 and 2, after pressure data of the upright 6 and the balance oil cylinder 7 are measured by the pressure sensor 3, the data are uploaded to a multi-functional display terminal in a wireless manner through the wireless radio frequency transceiver module, and the multi-functional display terminal can obtain stress state information of the hydraulic support, such as upright pressure, balance pressure, working resistance and the like through analyzing the pressure data.
As shown in fig. 4, when the pressure sensor is initially powered on, the current power supply state is determined, then the pressure sensor enters the initialization setting, after the initialization is completed, the silent receiving state is entered, then the pressure sensor enters the set working mode, the acquisition and the conversion of the current pressure value are completed, whether temperature compensation calibration is needed or not is determined, the current pressure value, the battery capacity, the maximum pressure value and the like of the pressure sensor are displayed through a liquid crystal display unit of the pressure sensor, data are uploaded to the intelligent terminal through an RS485 bus or a wireless communication mode, the pressure sensor enters a short-time delay waiting after the data are sent, the pressure sensor enters a sleep mode, and the next working cycle is waited to enter.
The pressure sensor has the working modes of continuous acquisition, timed active transmission, fluctuation acquisition and master-slave access, and has the functions of lowest pressure alarm, highest pressure alarm, settable communication frequency band, transmission rate, transmitting power, air awakening, air data interception and the like. The pressure sensor is powered by an internal battery and is provided with a wired bus communication mode.
As shown in fig. 1 and 2, comprehensive analysis of the posture and stress state of the hydraulic support can be used to obtain comprehensive support quality information such as the position of a resultant force action point of the support, support deflection, frame inversion, frame extrusion, torsion resistance, irregular stress, fatigue, pressure overrun, insufficient initial supporting force, periodic pressure step distance of a top plate and the like, and the comprehensive support quality information can be displayed in a two-dimensional graph, figure, curve and other visual modes on a multifunctional terminal to display and early warn phenomena and trends, provide real-time basis for improving support quality adjustment, and manually adjust the postures of a hydraulic support upright post and a balance jack, so that large-area support of a top beam and the top plate can be realized, structural parts can be prevented from being damaged, and the hydraulic support can be prevented from being inverted and bitten, and is always in a good support state, and the optimal coupling relation between support quality and surrounding rocks is realized.
As shown in fig. 5, when the intelligent terminal is powered on for the first time, the terminal enters initialization, power supply mode judgment is performed after initialization is completed, then the system enters a working mode, key data acquisition and other peripheral data transceiving are performed, then pressure sensor and attitude sensor data are acquired by secondary wireless data transceiving, the data are sent to a master station through a primary wireless network, and related data and processing analysis results are displayed in real time through a high-definition display screen.
The intelligent terminal has the functions of battery emergency power supply, two-stage wireless communication, an RS485 communication interface, a USB communication interface, a high-definition liquid crystal display screen, multiple interfaces, multiple key setting, data acquisition, processing, analysis, display, control, uploading and the like.
As shown in fig. 2, the upper computer has a plurality of display modes such as numbers, lists, curves, histograms, two-dimensional graphs and three-dimensional graphs, a plurality of query modes such as the whole, single-frame and historical working surface, a plurality of report forms such as class reports, daily reports, monthly reports and annual reports, and a plurality of functions such as remote online access.
Claims (6)
1. The utility model provides a be used for mining hydraulic support to strut quality monitoring devices which characterized in that includes: the system comprises a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply pressure sensor, a mining intrinsic safety type micro-power-consumption wireless and wired battery power supply attitude sensor, a mining intrinsic safety type multifunctional display terminal, a mining intrinsic safety type multifunctional display master station, a power supply, a cable and an upper computer.
2. The monitoring device according to claim 1, wherein the mining intrinsic safety type micro-power consumption wireless and wired battery pressure sensor is mounted on liquid inlets of a vertical column and a balance oil cylinder (a two-column hydraulic support, a four-column hydraulic support is mounted on a front vertical column and a rear vertical column) of a mining hydraulic support and is used for measuring pressures of the vertical column and the balance oil cylinder; the pressure sensor is provided with a display screen which can display the current measurement pressure and the battery power in real time.
3. The monitoring device of claim 1, wherein the mining intrinsic safety type micro-power consumption wireless and wired battery-powered attitude sensor is installed on the top beam, the front connecting rod and the base steel plate plane of the mining hydraulic support, has a horizontal tilt and pitch double-axis angle measuring function, and can measure the relative double-axis angles of the top beam, the connecting rod and the base relative to the horizontal plane.
4. The monitoring device of claim 1, wherein the mining intrinsic safety type multifunctional display terminal is installed in front of a stand column of the support, acquires data of the pressure sensor and the attitude sensor in a wireless or wired communication mode, and displays information such as a stress state, an attitude state and support quality of the current support through a liquid crystal display screen of the terminal after analysis and processing.
5. The monitoring device of claim 1, wherein the mining intrinsically safe multifunctional display master station is installed below a top beam of a first frame end support of a working face to acquire and upload all terminal data to an upper computer, and the master station can display the current communication state of the master station through a liquid crystal display screen.
6. The monitoring device of claim 1, wherein the power supply and the cable are used for supplying power and communicating between the terminal and the main station and the terminal, and the upper computer is used for storing, analyzing and displaying the support quality data of the hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010157682.2A CN111271109A (en) | 2020-03-09 | 2020-03-09 | Mining hydraulic support struts quality monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010157682.2A CN111271109A (en) | 2020-03-09 | 2020-03-09 | Mining hydraulic support struts quality monitoring devices |
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| CN111271109A true CN111271109A (en) | 2020-06-12 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679610A (en) * | 2020-06-19 | 2020-09-18 | 山西宏安翔科技股份有限公司 | Control system of mining attitude sensor |
| CN112145231A (en) * | 2020-08-20 | 2020-12-29 | 中煤科工开采研究院有限公司 | Early warning method for working condition of hydraulic support |
| CN113294192A (en) * | 2021-03-19 | 2021-08-24 | 郑州煤机液压电控有限公司 | Anti-biting frame control method based on attitude detection |
| CN113482677A (en) * | 2021-08-02 | 2021-10-08 | 中煤科工开采研究院有限公司 | Four-column hydraulic support working condition evaluation method based on clustering algorithm |
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| CN113482677A (en) * | 2021-08-02 | 2021-10-08 | 中煤科工开采研究院有限公司 | Four-column hydraulic support working condition evaluation method based on clustering algorithm |
| CN113482677B (en) * | 2021-08-02 | 2023-12-22 | 中煤科工开采研究院有限公司 | Four-column hydraulic support working condition assessment method based on clustering algorithm |
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Application publication date: 20200612 |