CN204575356U - A kind of based on coal-face supporting and the experimental provision moving frame dynamic similation - Google Patents
A kind of based on coal-face supporting and the experimental provision moving frame dynamic similation Download PDFInfo
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- CN204575356U CN204575356U CN201520317610.4U CN201520317610U CN204575356U CN 204575356 U CN204575356 U CN 204575356U CN 201520317610 U CN201520317610 U CN 201520317610U CN 204575356 U CN204575356 U CN 204575356U
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Abstract
The utility model discloses a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation.Comprise adjustable-angle base, loading experiment platform, variable frame type hydraulic support, rock sample, slidably base, signal acquiring system and signal processing system, wherein said adjustable-angle base comprises the base plate that is hinged, bearing plate and base front-rear linkage; Described loading experiment platform is placed on adjustable-angle base; Described variable frame type hydraulic support is placed on and loads below backing plate and slidably above base; Described rock sample to be placed on above set cap and below bracket base; Above the bearing plate that described slidably base is placed on adjustable-angle base and below floor rock test specimen; Described signal acquiring system comprises crack signal transducer, crack signal amplifier, pressure acquisition device, pressure transducer; Described signal processing system comprises pressure oscillograph and waveform analyzer.The utility model can realize the simulating on coupling research of multiple stope condition.
Description
Technical field:
The utility model relates to a kind of coal-face analog simulation measuring technology, be specifically related to a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is applicable to research colliery coal face hydraulic support and Relationship Between Face Supports And Surrounding, simulate hydraulic support and dynamically move frame process and test adjoining rock and to break development degree.
Background technology:
The coal rock dynamic disasters such as underground coal mine coal and gas prominent, rock burst, workplace pressure rack, great threat is brought to national wealth and miner's personal safety, and the generation of these disaster accidents, closely related with the support pattern of break unstability and the workplace of coal and rock.
At present, China only has the indoor experimental apparatus of minority in order to simulate coal face actual condition and working condition, analyzes qualitatively the coal and rock destructive characteristics under the different operating mode of coal-face, surrounding rock supporting relation, support force characteristic.Existing coal-face supporting simulated experiment platform can at stope working conditions such as different workplace inclination angle, not the unit-frame type hydraulic support stand modes of lab simulation, the each production link of coal-face is simulated and studied, but it still has the following disadvantages: one, loading system falls behind, manual loading system cannot apply more accurate and stable load to experimental provision; Two, monitoring system imperfection, applied real-time magnitude of load and hydraulic support cannot be obtained accurately to live the stressed size of post, cannot carry out real-time dynamic monitoring to the growth course of breaking of coal-face roof and floor rock sample, experimental provision monitor and feedback is comparatively large, and reliability is lower; What three, can not realize coal face hydraulic support moves frame, cannot carry out the dynamic similation of coal-face supporting.Therefore, design a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, at experiment lab simulation research coal face inclination angle, buried depth, roof and floor lithologic, unit-frame type hydraulic support stand and support do not move frame etc., by the Real-Time Monitoring of growing that breaks of live to the hydraulic support stressed size of post and workplace roof and floor rock sample, realize workplace roof and floor rock sample to break developmental state, the Adaptability Analysis of hydraulic support frames type, " support-country rock " relation of workplace and the research of stope mine pressing Strata Behavior, to Safety of Coal Mine Production, there is important practice significance.
Utility model content:
The utility model comprises adjustable-angle base, loading experiment platform, variable frame type hydraulic support, rock sample, slidably base, signal acquiring system and signal processing system, wherein: described adjustable-angle base comprises the base plate, bearing plate and the base front-rear linkage that are hinged, by changing mutual articulated position, the coal-face of simulation different angle; Described loading experiment platform is placed on adjustable-angle base, comprises hydraulic loading device, two perforation load column, load back timber, are arranged in the loading hydraulic cylinder loaded below back timber and the loading backing plate be arranged in below loading hydraulic cylinder; Described variable frame type hydraulic support is placed on and loads below backing plate and slidably above base, comprise be articulated and connected set cap, support live post, support caving shield, support front-rear linkage, bracket base, by different three kinds, hinged combine analog down-hole hydraulic supports, i.e. hydraulic chock-shield support, hydraulic shield support, standing shield hydraulic support; Described rock sample is placed on above set cap and below bracket base, chooses corresponding rock sample simulate coal-face roof and floor according to different workplace roof and floor conditions; Above the bearing plate that described slidably base is placed on adjustable-angle base and below rock sample, slidably the bottom of base is provided with pulley, the variable frame type hydraulic support being moved traction top by pulley is moved, analog operation face hydraulic support dynamically move frame process, complete after moving frame, by pin, pulley is fixed, realizes the fixation to slidably base; Described signal acquiring system comprises crack signal transducer, crack signal amplifier, pressure acquisition device, pressure transducer; Described signal processing system comprises pressure oscillograph and waveform analyzer.
Be designed with pulley passage above the bearing plate of described adjustable-angle base, composition horizontal slip structure, provide passage for the slidably pulley of base bottom moves.
Described hydraulic loading device controls terminal control loading hydraulic cylinder by computing machine, carries out robotization loading, can apply more accurate and stable load, and simulates the different buried depth of coal-face by different magnitudes of load.
Described loading back timber is loaded column with perforation and is connected by nut and screw rod, by moving up and down adjusting position.
Described rock sample, according to simulated different roof and floor lithologic conditions, chooses the rock of corresponding lithology from the on-the-spot roof and floor of coal-face.
Described crack signal transducer is pasted outside roof and floor rock sample, the acoustical signal of rock sample in stress destruction process is gathered, described pressure acquisition device is connected to loading hydraulic cylinder and support and lives on post, carries out Real-Time Monitoring to the live stressed size of post and distribution of force of loading hydraulic cylinder and support.
Described signal acquiring system is controlled by special software, carries out Real-Time Monitoring and collection to the signal at monitoring position each in experimental provision.
The advantage that the utility model has and good effect are:
1, adopt hydraulic loaded mode, control terminal control hydraulic loading system by computing machine and realize robotization loading, more accurate and stable load can be applied;
2, signal acquiring system is perfect, real time signal aquisition can be carried out to hydraulic support stressing conditions and rock sample failure evolvement process simultaneously, can study hydraulic support stress characteristic, coal and rock failure evolvement rule and workplace " support-country rock " relation under support force deformation factor and the coupling of country rock breakage;
3, by slidably base, hydraulic support is moved along advance of the face direction, thus realize the dynamic similation that coal face hydraulic support moves frame, there is good scientific research value and teaching demonstration meaning;
4, coal-face inclination angle can be simulated in indoor simultaneously, buried depth, roof and floor lithologic, not unit-frame type hydraulic support stand and support dynamically move the multiple stope conditions such as frame, realize the modeling effort of multiple stope condition coupling, and can real-time Signal sampling and processing be carried out, this utility model is scientific and reasonable for structure, system perfecting, diverse in function, has certain directive significance to Safety of Coal Mine Production.
Accompanying drawing illustrates:
Fig. 1 the utility model front view;
Fig. 2 the utility model local structural graph;
Fig. 3 (a) loading experiment platform front view;
Fig. 3 (b) loading experiment platform side view;
Fig. 4 variable frame type hydraulic rack structure figure;
Fig. 5 variable frame type hydraulic support members figure;
Figure 64 5 ° of adjustable-angle base figure;
Figure 73 0 ° of adjustable-angle base figure;
Fig. 8 bearing plate structural drawing;
Fig. 9 is understructure figure slidably.
In figure: 1-loading experiment platform; 2-loads back timber; 3-loading hydraulic cylinder; 4-loads backing plate; 5-pressure transducer; 6-pressure oscillograph; 7-perforation loads column; 8-boring and screw rod; 9-variable frame type hydraulic support; 10-set cap; 11-support post alive; 12-support caving shield; 13-support front-rear linkage; 14-bracket base; 15-rock sample; 16-crack signal transducer; 17-side shield; 18-adjustable-angle base; 19-base plate; 20-bearing plate; 21-base front-rear linkage; 22-crack signal amplifier; 23-waveform analyzer; 24-pressure acquisition device; 25-is base slidably; 26-pulley; 27-pulley passage; 28-computing machine control terminal.
Embodiment:
For understanding content of the present utility model, Characteristic further, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Specific embodiment 1: basic assembling procedure.
(1) experimental provision assembling and loading test experiments, loading experiment platform 1 is placed on adjustable-angle base 18, load column 7 adjustment according to the height of variable frame type hydraulic support 9 by perforation and load back timber 2, the position of loading hydraulic cylinder 3 and loading backing plate 4, loaded being placed on the variable frame type hydraulic support 9 loaded below backing plate 4 by computing machine control terminal 28, wherein roof and floor rock sample 15 to be placed on above set cap 10 and below bracket base 14, slidably base 25 is placed on above the bearing plate 20 of adjustable-angle base 18, in the pulley passage 27 that pulley 26 is on bearing plate 20,
(2) signal acquisition and processing system is installed, crack signal transducer 16 is pasted in the outside of rock sample 15, be connected with waveform analyzer 23 by crack signal amplifier 22, pressure acquisition device 24 is connected on loading hydraulic cylinder 3 and support post 11 alive, is connected with pressure oscillograph 6 by pressure transducer 5; The acoustical signal of collection is transferred to through crack signal amplifier 22 process and the storage that waveform analyzer 23 carries out acoustical signal by crack signal transducer 16, the pressure signal of collection is transferred to through pressure transducer 5 process and the storage that pressure oscillograph 6 carries out pressure signal by pressure acquisition device 24, and generates a series of signal transacting figure such as stress-time, Energy-Time, stress-Energy-Time as required.
Specific embodiment 2: simulated experiment is carried out to coal-face single factor test condition.
By the coal-face of the difference of each assembly of adjustable frames hinged array configuration simulation different angle; Controlled the size of terminal control loading hydraulic cylinder institute imposed load by computing machine, simulate different Conditions of Buried Depths; The roof and floor rock sample chosen by scene simulates different workplace roof and floor lithologics; By the lower three kinds of hydraulic supports of hinged array configuration simulation well converting the set cap of variable frame type hydraulic support, support lives post, support caving shield, support front-rear linkage, bracket base, i.e. hydraulic chock-shield support, hydraulic shield support, standing shield hydraulic support; By traction, the slidably base of pulley is installed, the variable frame type hydraulic support above it is moved, analog operation face hydraulic support dynamically move frame process.
By the fractured zones of crack signal acquiring and processing system monitoring rock sample, by the stress characteristic of pressure signal Acquire and process systematic analysis not unit-frame type hydraulic support.
Specific embodiment 3: simulated experiment is carried out to coal-face many factors coupling condition.
For workplace actual condition, according to specific embodiment 2, simulated experiment is carried out to many factors coupling condition:
(1) workplace inclination angle, buried depth, roof and floor lithologic factor is considered, by cranny development and the distribution of crack signal acquiring and processing system Real-Time Monitoring rock sample, and by Energy-Time correlogram, the fractured zones of different top floor rock test specimen under different angle, different buried depth condition and failure evolvement rule are studied;
(2) workplace inclination angle, buried depth, hydraulic support frames type factor is considered, by the stressing conditions of pressure signal Acquire and process system Real-Time Monitoring hydraulic support, and by stress-time correlation figure, the stress characteristic of different hydraulic support under different angle, different buried depth condition is studied;
(3) workplace inclination angle is considered, buried depth, roof and floor lithologic, hydraulic support frames type factor, by cranny development and the distribution of crack signal acquiring and processing system Real-Time Monitoring rock sample, by the stressing conditions of pressure signal Acquire and process system Real-Time Monitoring hydraulic support, by Energy-Time correlogram, stress-time correlation figure, stress-Energy-Time correlogram is to the fractured zones of different top floor rock test specimen under workplace many factors coupling condition and failure evolvement rule, stress characteristic and the adaptability of different hydraulic support are studied, the last comprehensive crack failure evolvement rule of roof and floor rock sample and the stress characteristic of hydraulic support are studied workplace " support-country rock " interactively.
Claims (7)
1. one kind based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that, comprise adjustable-angle base, loading experiment platform, variable frame type hydraulic support, rock sample, slidably base, signal acquiring system and signal processing system, wherein: described adjustable-angle base comprises the base plate, bearing plate and the base front-rear linkage that are hinged, by changing mutual articulated position, the coal-face of simulation different angle; Described loading experiment platform is placed on adjustable-angle base, comprises hydraulic loading device, two perforation load column, load back timber, are arranged in the loading hydraulic cylinder loaded below back timber and the loading backing plate be arranged in below loading hydraulic cylinder; Described variable frame type hydraulic support is placed on and loads below backing plate and slidably above base, comprise be articulated and connected set cap, support live post, support caving shield, support front-rear linkage, bracket base, by different three kinds, hinged combine analog down-hole hydraulic supports, i.e. hydraulic chock-shield support, hydraulic shield support, standing shield hydraulic support; Described rock sample is placed on above set cap and below bracket base, chooses corresponding rock sample simulate coal-face roof and floor according to different workplace roof and floor conditions; Above the bearing plate that described slidably base is placed on adjustable-angle base and below rock sample, slidably the bottom of base is provided with pulley, the variable frame type hydraulic support being moved traction top by pulley is moved, analog operation face hydraulic support dynamically move frame process, complete after moving frame, by pin, pulley is fixed, realizes the fixation to slidably base; Described signal acquiring system comprises crack signal transducer, crack signal amplifier, pressure acquisition device, pressure transducer; Described signal processing system comprises pressure oscillograph and waveform analyzer.
2. a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation as claimed in claim 1, it is characterized in that: above the bearing plate of described adjustable-angle base, be designed with pulley passage, composition horizontal slip structure, provides passage for the slidably pulley of base bottom moves.
3. according to claim 1 a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that: described hydraulic loading device controls terminal control loading hydraulic cylinder by computing machine, carry out robotization loading, more accurate and stable load can be applied, and simulate the different buried depth of coal-face by different magnitudes of load.
4. according to claim 1 a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that: described loading back timber is loaded column with perforation and is connected by nut and screw rod, by moving up and down adjusting position.
5. according to claim 1 a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that: described rock sample, according to simulated different roof and floor lithologic conditions, chooses the rock of corresponding lithology from the on-the-spot roof and floor of coal-face.
6. according to claim 1 a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that: described crack signal transducer is pasted outside roof and floor rock sample, the acoustical signal of rock sample in stress destruction process is gathered, described pressure acquisition device is connected to loading hydraulic cylinder and support and lives on post, carries out Real-Time Monitoring to the live stressed size of post and distribution of force of loading hydraulic cylinder and support.
7. according to claim 1 a kind of based on coal-face supporting and the experimental provision moving frame dynamic similation, it is characterized in that: described signal acquiring system is controlled by special software, Real-Time Monitoring and collection are carried out to the signal at monitoring position each in experimental provision.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807666A (en) * | 2015-05-15 | 2015-07-29 | 安徽理工大学 | Experimental device based on coal face timbering and dynamic moving frame simulation |
| CN109765018A (en) * | 2019-01-22 | 2019-05-17 | 河南理工大学 | A kind of experimental provision of cantilever beam structure fracture abrupt release dynamic load |
| CN109946164A (en) * | 2019-03-11 | 2019-06-28 | 中国矿业大学(北京) | A kind of experiment porch and experimental method for simulating the coal petrography catastrophe of coal mine stope |
| CN110646179A (en) * | 2019-08-27 | 2020-01-03 | 天地科技股份有限公司 | Hydraulic support top and bottom plate specific pressure measuring device |
| CN111208003A (en) * | 2020-01-15 | 2020-05-29 | 太原理工大学 | Testing device for stress distribution form of block contact surface of masonry beam structure |
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
-
2015
- 2015-05-15 CN CN201520317610.4U patent/CN204575356U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807666A (en) * | 2015-05-15 | 2015-07-29 | 安徽理工大学 | Experimental device based on coal face timbering and dynamic moving frame simulation |
| CN109765018A (en) * | 2019-01-22 | 2019-05-17 | 河南理工大学 | A kind of experimental provision of cantilever beam structure fracture abrupt release dynamic load |
| CN109946164A (en) * | 2019-03-11 | 2019-06-28 | 中国矿业大学(北京) | A kind of experiment porch and experimental method for simulating the coal petrography catastrophe of coal mine stope |
| CN109946164B (en) * | 2019-03-11 | 2020-07-24 | 中国矿业大学(北京) | Experiment platform and experiment method for simulating coal and rock catastrophe of coal mine stope |
| CN110646179A (en) * | 2019-08-27 | 2020-01-03 | 天地科技股份有限公司 | Hydraulic support top and bottom plate specific pressure measuring device |
| CN111208003A (en) * | 2020-01-15 | 2020-05-29 | 太原理工大学 | Testing device for stress distribution form of block contact surface of masonry beam structure |
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN112611856B (en) * | 2020-11-26 | 2022-07-01 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170515 |