CN113863982B - Large-scale true three-dimensional hollow permeable disaster simulation experiment device - Google Patents
Large-scale true three-dimensional hollow permeable disaster simulation experiment device Download PDFInfo
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- CN113863982B CN113863982B CN202111032468.5A CN202111032468A CN113863982B CN 113863982 B CN113863982 B CN 113863982B CN 202111032468 A CN202111032468 A CN 202111032468A CN 113863982 B CN113863982 B CN 113863982B
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- 238000004088 simulation Methods 0.000 title claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000006073 displacement reaction Methods 0.000 claims abstract description 43
- 230000005484 gravity Effects 0.000 claims abstract description 36
- 238000002474 experimental method Methods 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 34
- 230000008859 change Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 239000012466 permeate Substances 0.000 abstract 2
- 230000009172 bursting Effects 0.000 description 10
- 239000003245 coal Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 238000000429 assembly Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a large-scale true three-dimensional vacuum water-permeable disaster simulation experiment device, which is provided with an experiment platform, wherein a loading mechanism is fixedly arranged on the experiment platform; an experimental model is arranged in the loading mechanism, a loading assembly is fixedly arranged on the surface of the experimental model, a displacement sensor is arranged at the end part of the loading assembly, and a gravity sensor is arranged between the loading assembly and the experimental model in a propping mode; the experimental platform drives the loading mechanism to simulate the inclination angle of the stratum. Through the displacement sensor of installation, whether displacement and displacement change take place for experimental model in the time of displacement sensor cooperation external equipment real-time supervision is exerting pressure to experimental model to the hydro-cylinder, when taking place displacement change, obtain the pressure data when producing the displacement through gravity sensor, realize large-scale true three-dimensional sky accident that permeates water and reproduce the simulation, provide the scientific basis for the analysis and identification of the accident that permeates water in the sky.
Description
Technical Field
The invention relates to the technical field of mine water control, in particular to a large-scale true three-dimensional simulation experiment device for a permeable disaster in the sky.
Background
Mine hydrogeology condition is complicated, and mineral resources, especially coal resources, are seriously threatened and restricted by water damage for a long time. Along with the deep extension of coal resource exploitation and the transfer of development gravity center to the west, exploitation conditions and water hazard types are more complicated and various, but the existing simulation experiment platform for mine water hazard mechanism adopts a fixed hinge point rotation mode, simulation experiment data is single, and the simulation experiment of complex and various terrains cannot be satisfied. The mine water damage mechanism simulation experiment platform is concentrated on the aspect of water bursting of the bottom plate at home and abroad, and the mature bottom plate water bursting simulation experiment platform has the capability of bottom plate water bursting mechanism analysis and bottom plate water bursting process reproduction simulation verification, and the maximum similarity ratio is 1:50, the maximum model size is 2m in diameter and 2m in height, and an air bag surrounding rock is adopted for loading, but a simulation experiment platform for a mechanism of the permeable in the air is lacked, and because the mechanism of the permeable in the air is basically different from a mechanism of the water burst of the bottom plate, the simulation verification of the water burst of the bottom plate on the conventional simulation experiment platform for the mechanism of the permeable in the air is inapplicable, and a set of simulation experiment platform for the true three-dimensional simulation of the permeable in the air, which meets the depth of less than 1000m, is necessary to develop, and a test platform is provided for researching analysis, simulation reproduction and verification of the mechanism of the permeable in the air of a mine.
Disclosure of Invention
The invention aims to provide a large-scale true three-dimensional simulation experiment device for a hollow water-permeable disaster, which aims to solve the problems that the existing simulation experiment platform for a mine water damage mechanism adopts a fixed hinge point rotation mode, has single simulation experiment data and cannot meet the simulation experiment of complex and various terrains. The well water disaster mechanism simulation experiment platform is concentrated on the aspect of water bursting of the bottom plate, the mature bottom plate water bursting simulation experiment platform has the capability of analyzing the bottom plate water bursting mechanism and reproducing and simulating the water bursting process of the bottom plate, but the old air water permeability mechanism simulation experiment platform is lacking, and the old air water permeability mechanism is essentially different from the bottom plate water bursting mechanism, so that the existing bottom plate water bursting simulation experiment platform is not applicable to simulating and verifying the old air water permeability accident.
In order to achieve the above purpose, the present invention provides the following technical solutions:
A large-scale true three-dimensional hollow permeable disaster simulation experiment device is provided with an experiment platform, and a loading mechanism is fixedly arranged on the experiment platform; an experimental model is arranged in the loading mechanism, a loading assembly is fixedly arranged on the surface of the experimental model, a displacement sensor is arranged at the end part of the loading assembly, and a gravity sensor is arranged between the loading assembly and the experimental model in a propping mode; the experimental platform drives the loading mechanism to simulate the inclination angle of the stratum.
Optionally, the experimental model is a cavity structure with at least one plane; the loading assembly is arranged on the plane and consists of a plurality of loading units, the end parts of the loading units are provided with displacement sensors, and a gravity sensor is arranged between the loading units and the plane in a propping mode; the loading unit is of an oil cylinder structure.
Optionally, the experimental model is a planar three-dimensional structure with six faces, and a loading assembly is arranged on at least one face; the loading assembly consists of nine loading units, the end parts of the loading units are provided with displacement sensors, and a gravity sensor is arranged between the loading units and the plane in a propping manner; the loading unit is of an oil cylinder structure.
Optionally, the loading assembly comprises a loading unit, an oil pipe, a hydraulic valve group and a connecting block; a connecting block is fixedly arranged on the outer wall of the loading unit, and an oil pipe and a hydraulic valve group are communicated with the connecting block.
Optionally, the loading unit is of an oil cylinder structure, and a displacement sensor is arranged at the top end of the loading unit in a penetrating way; the loading unit is internally provided with an oil cylinder piston, the bottom of the oil cylinder piston is provided with a connecting screw, and the connecting screw is sequentially overlapped with an adapter plate, a gravity sensor, a connecting plate and a loading plate.
Optionally, the experimental platform is provided with a bench, two support plates are symmetrically arranged on the bench, the tops of the two support plates are slidably hung with a mounting platform, and the mounting platform realizes sliding adjustment of the inclination angle of the mounting platform relative to the support plates through an adjusting assembly and a support assembly; the loading mechanism is fixedly arranged on the mounting platform.
Optionally, an adjusting plate is arranged under the mounting platform and corresponds to the supporting plate; the adjusting component comprises a motor fixedly arranged outside the supporting plate, the output end of the motor is fixedly connected with a rotating rod penetrating through the supporting plate, the output end of the rotating rod, far away from the motor, is fixedly connected with a first gear, and the first gear is meshed with a second gear; the second gear is fixedly arranged on the adjusting plate.
Optionally, the regulating plate lower limb be the arc, the backup pad lateral wall on set up curved adjustment tank, be located the roll connection has the auxiliary roller in the adjustment tank, the auxiliary roller rotates with the regulating plate and is connected.
Optionally, the maximum rotation angle of the first gear and the second gear is 32 °.
Optionally, the supporting component comprises an auxiliary plate arranged on the bench, a supporting block is fixedly arranged on the auxiliary plate, and auxiliary wheels are arranged on the supporting block; the auxiliary wheel is clamped with the lower edge of the adjusting plate.
According to the loading mechanism, through the installed displacement sensor, the displacement sensor is matched with external equipment, whether the experimental model is displaced and displacement change thereof are generated when the oil cylinder applies pressure to the experimental model or not can be monitored in real time, when the displacement change is generated, pressure data during displacement are obtained through the gravity sensor, data support is provided for later coal exploitation or rock stratum intensity detection work, and the working efficiency and accuracy are improved; the experiment platform can provide stable support for the loading mechanism, and simultaneously, the adjustment of the inclination angle is convenient.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a large-scale true three-dimensional hollow water-permeable disaster simulation experiment device;
FIG. 2 is a perspective view of the loading mechanism of the present invention;
FIG. 3 is a schematic diagram of the structure of a single load assembly of FIG. 2;
FIG. 4 is a longitudinal cross-sectional view of FIG. 3;
FIG. 5 is a perspective view of the experimental platform structure of the invention;
FIG. 6 is an enlarged view of the adjustment mechanism and support mechanism of FIG. 5;
fig. 7 is an enlarged view of the support mechanism of fig. 5.
In the figure: 1-loading mechanism, 11-operation table, 12-mounting groove, 13-experiment model, 131-experiment table, 14-loading component, 141-loading unit, 1411-displacement sensor, 1412-cylinder piston, 1413-connecting plate, 1414-loading plate, 1415-connecting screw, 1416-gravity sensor, 1417-adapter plate, 142-oil pipe, 143-hydraulic valve group and 144-connecting block;
2-experiment platform, 21-stage frame, 211-backup pad, 212-mounting platform, 2121-regulating plate, 2122-regulating groove, 22-regulating component, 221-motor, 222-first flange, 223-speed reducer, 224-auxiliary roller, 225-first gear, 226-second gear, 227-second flange, 228-swivelling lever, 23-supporting component, 231-supporting block, 232-auxiliary wheel, 233-auxiliary plate, 234-auxiliary block, 235-auxiliary sheet, 236-L type gasket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the large-scale true three-dimensional hollow permeable disaster simulation experiment device is provided with an experiment platform 2, and a loading mechanism 1 is fixedly arranged on the experiment platform 2; the loading mechanism 1 is provided with an experimental model 13, a loading assembly 14 is fixedly arranged on the surface of the experimental model 13, a displacement sensor 1411 is arranged at the end part of the loading assembly 14, and a gravity sensor 1416 is arranged between the loading assembly 14 and the experimental model 13 in a propping manner; the experiment platform 2 drives the loading mechanism 1 to simulate the inclination angle of the stratum. When the device is used, through the displacement sensor 1411 installed on the loading assembly 14, the displacement sensor 1411 can be matched with external equipment to monitor whether the experimental model 13 is displaced and displacement change thereof when the loading assembly 14 applies pressure to the experimental model 13 in real time, when the displacement change occurs, pressure data generated during displacement is obtained through the gravity sensor 1416, data support is provided for later coal exploitation or rock stratum intensity detection work, the work efficiency and accuracy are improved, and meanwhile, the simulated adjustment of the stratum dip angle can be stably carried out through the setting of the experimental platform 2.
Referring to fig. 2-4, the loading mechanism 1 of the present invention includes an operation table 11, a mounting groove 12 is formed at the bottom of the operation table 11, an experiment model 13 is placed on the surface of the upper end of the operation table 11, the experiment model 13 is a rock stratum located below 1000 meters on the ground surface, and the experiment model 13 is in a block shape. The experimental model 13 is a cavity structure with at least one plane; the loading assembly 14 is arranged on a plane, the loading assembly 14 consists of a plurality of loading units 141, a displacement sensor 1411 is arranged at the end part of each loading unit 141, and a gravity sensor 1416 is arranged between each loading unit 141 and the plane in a propping manner; the loading unit 141 is of an oil cylinder structure.
In the embodiment of the disclosure, in particular, the experimental model 13 is a planar three-dimensional structure with six faces, and a loading assembly 14 is arranged on at least one face; the loading assembly 14 consists of nine loading units 141, a displacement sensor 1411 is arranged at the end part of each loading unit 141, and a gravity sensor 1416 is arranged between each loading unit 141 and the plane in a propping manner; the loading unit 141 is of an oil cylinder structure. The six loading assemblies 14 are arranged, and the six loading assemblies 14 are respectively arranged on six faces of the experimental model, and the comprehensiveness of experimental data can be effectively ensured through the loading assemblies 14 arranged on the six faces of the experimental model, so that experimental simulation data are more real.
In an embodiment of the present disclosure, the loading assembly 14 includes a loading unit 141, an oil pipe 142, a hydraulic valve block 143, and a connection block 144; the outer wall of the loading unit 141 is fixedly provided with a connecting block 144, and the connecting block 144 is communicated with an oil pipe 142 and a hydraulic valve group 143. Be provided with loading subassembly 14 on the operation panel 11, loading subassembly 14 includes the experimental model 13 fixed at the operation panel 11 surface through fixing bolt, the mounting hole has been seted up on being located experimental model 13 surface, be provided with loading unit 141 in the mounting hole, and be located fixedly connected with flange on the loading unit 141 outer wall, and flange cooperation fixing bolt fixes at experimental model 13 surface, be located fixedly connected with connecting block 144 on the loading unit 141 outer wall, the intercommunication has oil pipe 142 on the connecting block 144, and the one end that oil pipe 142 kept away from connecting block 144 communicates there is hydraulic pressure valves 143, and hydraulic pressure valves 143 fixed connection is at experimental model 13 surface, the connecting hole has been seted up on being located loading unit 141 upper end surface, and install displacement sensor 1411 in the connecting hole, preferably magnetic displacement sensor.
In the embodiment of the present disclosure, the loading unit 141 is of an oil cylinder structure, and a displacement sensor 1411 is penetrated at the top end of the loading unit 141; an oil cylinder piston 1412 is arranged in the loading unit (141), a connecting screw 1415 is arranged at the bottom of the oil cylinder piston 1412, and an adapter plate 1417, a gravity sensor 1416, a connecting plate 1413 and a loading plate 1414 are sequentially stacked on the connecting screw 1415. The bottom of the loading unit 141 is fixedly connected with a connecting screw 1415, one end of the connecting screw 1415, which is far away from the loading unit 141, is in threaded connection with a connecting plate 1413, one end of the connecting plate 1413, which is far away from the connecting screw 1415, is in interference with a loading plate 1414, the loading plate 1414 is in interference with the experimental model, an adapter plate 1417 is sleeved on the outer wall of the connecting screw 1415, and a gravity sensor 1416 matched with the adapter plate 1417 is arranged on the surface of the upper end of the connecting plate 1413. In a specific embodiment of the invention, when the experimental model is used, the loading unit 141 drives the connecting screw 1415 to apply pressure to the experimental model by matching with the connecting plate 1413 and the loading plate 1414, the adapter plate 1417 is matched with the connecting plate 1413 to extrude the gravity sensor 1416, the external equipment is connected with the gravity sensor 1416, the pressure value of the loading unit 141 extruding the experimental model can be obtained, a worker can obtain different data by pressurizing and depressurizing the loading unit 141, then the pressure critical value of the experimental model is calculated according to the damage degree of the experimental model, a data basis is provided for the actual requirement of the later period, and the arrangement of the adapter plate 1417 can reduce the pressure of the gravity sensor 1416 of the loading unit 141, prevent the gravity sensor 1416 from being damaged and ensure the working efficiency of the gravity sensor 1416.
Working principle: for the present invention, in use, firstly, a worker places an experimental model on the surface of the operation table 11, installs the loading unit 141 on the surface of the experimental model 13 through the installation hole, fixes the loading unit 141 on the surface of the experimental model 13 through the flange-fitting fixing bolts, then the worker starts the loading unit 141, the hydraulic valve group 143 pressurizes the loading unit 141 through the oil pipe 142 in cooperation with the connection block 144, the loading unit 141 applies pressure to the connection plate 1413 through the connection screw 1415 based on the principle of piston-type pressing of the loading unit 141, the connection plate 1413 applies pressure to the experimental model again through the loading plate 1414, after the loading operation of the loading unit 141 is completed, the worker estimates the basic hardness of the experimental model by observing the damage degree of the experimental model, wherein the gravity sensor 1416 matched with the adapter plate 1417 is installed on the upper end surface of the connection plate 1413, when the loading unit 141 performs pressurizing operation, the adapter plate 1417 is matched with the connecting plate 1413 to extrude the gravity sensor 1416, the adapter plate 1417 is connected with the gravity sensor 1416 through external equipment, the pressure of the loading unit 141 can be monitored in real time through the gravity sensor 1416 to provide pressure data for experiments, the arrangement of the adapter plate 1417 can reduce the pressure of the loading unit 141 on the gravity sensor 1416 to ensure the working efficiency of the gravity sensor 1416, finally, the displacement sensor 1411 is arranged on the upper end surface of the loading unit 141 through the connecting hole 213, the displacement sensor 1411 can monitor whether displacement and displacement change of the experimental model occur when the loading unit 141 applies pressure to the experimental model in real time, the displacement sensor 1411 is matched with external equipment to provide data for experiments, and the stress actively loaded by the system can be measured in the experimental process, the passive loading stress field can also be measured throughout the test.
The loading mechanism 1 solves the problems that the simulation experiment platforms for mine water disaster mechanism are concentrated on the aspect of water inrush of the bottom plate at home and abroad, the mature bottom plate water inrush simulation experiment platform has the capability of analyzing the bottom plate water inrush mechanism and reproducing simulation verification of the bottom plate water inrush process, but lacks an old air water penetration mechanism simulation experiment platform, and the old air water penetration mechanism is essentially different from the bottom plate water inrush mechanism, so that the existing bottom plate water inrush simulation experiment platform is not applicable to simulation verification of an old air water penetration accident, and firstly, the loading assemblies 14 are arranged on six sides of the experiment model 13, so that compared with the traditional three-side loading assembly, the comprehensive of experimental data can be effectively ensured, and the experimental simulation data is more true; secondly, by uniformly arranging nine loading points, namely loading units 141, on each surface, different ground stresses can be applied in the vertical direction, and simultaneously, ground stresses can be applied to models with different sizes; the oil cylinder drives the connecting screw rod to be matched with the connecting plate and the loading plate 1414 to apply pressure to the experimental model 13, the adapter plate 1417 is matched with the connecting plate 1413 to extrude the gravity sensor 1416, the pressure value extruded by the oil cylinder to the experimental model 13 can be obtained through connecting external equipment with the gravity sensor 1416, different data can be obtained through pressurizing and depressurizing the oil cylinder by a worker, then the pressure critical value of the experimental model 13 is calculated according to the damage degree of the experimental model 13, a data basis is provided for the actual requirement in the later period, the pressure of the oil cylinder to the gravity sensor 1416 can be reduced through the arrangement of the adapter plate 1417, the damage of the gravity sensor 1416 is prevented, and the working efficiency of the gravity sensor 1416 is ensured; through the displacement sensor 1411 installed on the surface of the upper end of the oil cylinder, the displacement sensor 1411 can be matched with external equipment to monitor whether the oil cylinder applies pressure to the experimental model 13 and whether the experimental model 13 generates displacement or not and the displacement change thereof in real time, and when the displacement change occurs, pressure data during displacement is obtained through the gravity sensor 1416, so that data support is provided for later coal exploitation or rock stratum intensity detection work, and the work efficiency and accuracy are improved.
Referring to fig. 5-7, the invention provides an experiment platform 2, wherein a platform frame 21 is provided, two support plates 211 are symmetrically arranged on the platform frame 21, a mounting platform 212 is slidably suspended on the top of the two support plates 211, and the mounting platform 212 realizes the sliding adjustment of the inclination angle relative to the support plates 211 through an adjusting component 22 and a supporting component 23; the loading mechanism 1 is fixedly arranged on the mounting platform 212.
In the embodiment of the present disclosure, an adjusting plate 2121 is provided under the mounting platform 212 corresponding to the support plate 211; the adjusting assembly 22 comprises a motor 221 fixedly arranged outside the supporting plate 211, the output end of the motor 221 is fixedly connected with a rotating rod 228 penetrating through the supporting plate 211, the output end of the rotating rod 228 far away from the motor 221 is fixedly connected with a first gear 225, and the first gear 225 is meshed with a second gear 226; the second gear 226 is fixed to the adjustment plate 2121. Specifically, the adjusting assembly 22 includes a motor 221 fixedly connected to an outer wall of the supporting plate 211, a speed reducer 223 is connected to an upper end of the motor 221, a rotating rod 228 penetrating through the supporting plate 211 is fixedly connected to an output end of the motor 221, one end, away from the output end of the motor 221, of the rotating rod 228 is fixedly connected with a first gear 225, the first gear 225 is meshed with a second gear 226, a maximum rotation angle of the first gear 225 and the second gear 226 is 32 °, one side of the second gear 226 is fixedly connected with an adjusting plate 2121, the adjusting plate 2121 is arc-shaped, an installation platform 212 is fixedly connected to an upper end of the adjusting plate 2121, the length of the installation platform 212 is smaller than the width between the two supporting plates 211, an adjusting groove 2122 is formed in a side wall of the supporting plate 211, an auxiliary roller 224 is connected in the adjusting groove 2122 in a rolling manner, one end, close to the adjusting plate 2121, of the auxiliary roller 224 is fixedly connected with a connecting rod, the other end of the connecting rod is in rotary connection with the adjusting plate 2121, the outer wall of the rotating rod 228 is rotationally connected with a first flange 222, a first flange 227, and the first flange 222 and the first flange 227 are fixedly screwed with the supporting plate 211. Offer curved adjustment tank 2122 on backup pad 211, can drive auxiliary roller 224 when adjusting plate 2121 when rotating and roll in adjustment tank 2122, adjustment tank 2122 cooperation auxiliary roller 224 can carry out spacingly to the rotation angle of first gear 225 and second gear 226, thereby prevent that the rotation angle of first gear 225 and second gear 226 is too big and influence the stability of whole device, be provided with at adjusting plate 2121 bottom and adjusting plate 2121 matched with auxiliary wheel 232 at last, auxiliary wheel 232 installs on supporting shoe 231, adjusting plate 2121 can drive auxiliary wheel 232 and rotate when carrying out the rotation work, compare traditional auxiliary device, auxiliary wheel 232 itself can reduce the frictional force with between the adjusting plate 2121, reduce the energy loss, auxiliary wheel 232 rethread supporting shoe 231 carries out auxiliary support to adjusting plate 2121, the holistic stability of device improves.
In the embodiment of the invention, a worker places an experimental model on the mounting platform 212, then fixes the experimental model by matching with external equipment, the worker starts the motor 221 again, a speed reducer 223 arranged on the motor 221 drives a rotating rod 228 by matching with the motor 221, the rotating rod 228 drives a first gear 225, the first gear 225 drives an adjusting plate 2121 and the mounting platform 212 to rotate by meshing a second gear 226, wherein the maximum rotation angle of the first gear 225 and the second gear 226 is 32 degrees, an adjusting groove 2122 is formed in the supporting plate 211, the adjusting plate 2121 drives an auxiliary roller 224 to roll in the adjusting groove 2122 when rotating, and the adjusting groove 2122 matches with the auxiliary roller 224 to limit the rotation angle of the first gear 225 and the second gear 226, so that the stability of the mounting platform 212 is prevented from being influenced by overlarge rotation angle of the first gear 225 and the second gear 226.
In the embodiment of the present disclosure, the supporting assembly 23 includes an auxiliary plate 233 provided on the gantry 21, a supporting block 231 is fixedly provided on the auxiliary plate 233, and an auxiliary wheel 232 is installed on the supporting block 231; the auxiliary wheel 232 is engaged with the lower edge of the adjustment plate 2121. Specifically, the supporting component 23 includes an auxiliary plate 233 screwed on the upper end surface of the stand 21 by a fixing bolt, a supporting block 231 is fixedly connected to the upper end surface of the auxiliary plate 233, an auxiliary block 234 is fixedly connected to the upper end surface of the supporting block 231 by a fixing bolt, an auxiliary wheel 232 matched with the auxiliary plate 233 is mounted on the upper end of the auxiliary block 234, an L-shaped gasket 236 is fixedly connected to the surface of the stand 21, a pin is arranged on the L-shaped gasket 236 in a penetrating manner, an auxiliary piece 235 is fixedly connected to one end of the pin away from the L-shaped gasket 236, and the auxiliary piece 235 is fixedly connected to the outer wall of the supporting block 231.
In the embodiment of the invention, the auxiliary wheel 232 matched with the adjusting plate 2121 is arranged at the bottom of the adjusting plate 2121, the auxiliary wheel 232 is arranged on the supporting block 231, and the auxiliary wheel 232 can be driven to rotate when the adjusting plate 2121 rotates, compared with a traditional auxiliary device, the auxiliary wheel 232 can reduce the friction force between the auxiliary wheel 232 and the adjusting plate 2121 and reduce the energy loss, the auxiliary wheel 232 can assist in supporting the adjusting plate 2121 through the supporting block 231, the overall stability is improved, and the pin matched with the auxiliary sheet 235 further increases the stability between the L-shaped gasket 236 and the supporting block 231 through rotating the pin on the L-shaped gasket 236.
Working principle: for the invention, when the experiment model is specifically used, firstly, a worker places the experiment model on the mounting platform 212, then the experiment model is fixed by being matched with external equipment, the worker starts the motor 221 again, the speed reducer 223 arranged on the motor 221 can be matched with the motor 221 to drive the rotating rod 228, the rotating rod 228 drives the first gear 225, the first gear 225 drives the adjusting plate 2121 and the mounting platform 212 to rotate by being meshed with the second gear 226, wherein the maximum rotation angle of the first gear 225 and the second gear 226 is 32 degrees, the adjusting groove 2122 is formed in the supporting plate 211, when the adjusting plate 2121 rotates, the auxiliary roller 224 can be driven to roll in the adjusting groove 2122, the adjusting groove 2122 is matched with the auxiliary roller 224 to limit the rotation angle of the first gear 225 and the second gear 226, the rotation angle of the first gear 225 and the second gear 226 is prevented from being excessively large, so that the stability of the mounting platform 212 is affected, finally, the auxiliary roller 232 is arranged on the supporting block 231, the bottom of the adjusting plate 2121 is meshed with the second gear 226, the auxiliary roller 2121 drives the auxiliary roller 232 to rotate when the adjusting plate 2121 rotates, compared with the auxiliary roller 2121, the conventional auxiliary roller 212232 is driven to rotate, the auxiliary roller 2121 can be further reduced, and the loss of the auxiliary roller is further reduced by being matched with the auxiliary roller 2121, and the auxiliary roller is further reduced, and the friction loss of the auxiliary plate is stabilized by the supporting plate 303, and the support plate is arranged between the supporting plate and the supporting plate is further, and the supporting plate 303 can be matched with the supporting plate and the supporting plate 303.
The experiment platform 2 solves the problems that the existing experiment platform for simulating the mine water damage mechanism adopts a fixed hinge point rotation mode, the gravity center can deviate, lift and the like when the experiment platform rotates, the large-inclination-angle model of the large model is paved under the safety limit, simulation experiment data are single, and the simulation experiment of complex and various terrains cannot be met.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (3)
1. The large-scale true three-dimensional hollow permeable disaster simulation experiment device is characterized in that an experiment platform (2) is arranged, and a loading mechanism (1) is fixedly arranged on the experiment platform (2);
The loading mechanism (1) is provided with an experimental model (13), a loading assembly (14) is fixedly arranged on the surface of the experimental model (13), a displacement sensor (1411) is arranged at the end part of the loading assembly (14), and a gravity sensor (1416) is arranged between the loading assembly (14) and the experimental model (13) in a propping mode;
The experimental platform (2) drives the loading mechanism (1) to simulate the inclination angle of the stratum;
the experimental model (13) is a cavity structure with at least one plane; a loading assembly (14) is arranged on the plane, the loading assembly (14) consists of a plurality of loading units (141), a displacement sensor (1411) is arranged at the end part of the loading unit (141), and a gravity sensor (1416) is arranged between the loading unit (141) and the plane in a propping mode; the loading unit (141) is of an oil cylinder structure;
The experimental model (13) is of a planar three-dimensional structure with six faces, and a loading assembly (14) is arranged on at least one face; the loading assembly (14) consists of nine loading units (141), a displacement sensor (1411) is arranged at the end part of the loading unit (141), and a gravity sensor (1416) is arranged between the loading unit (141) and the plane in a propping way; the loading unit (141) is of an oil cylinder structure;
the loading assembly (14) comprises a loading unit (141), an oil pipe (142), a hydraulic valve group (143) and a connecting block (144); a connecting block (144) is fixedly arranged on the outer wall of the loading unit (141), and the connecting block (144) is communicated with an oil pipe (142) and a hydraulic valve group (143);
the loading unit (141) is of an oil cylinder structure, and a displacement sensor (1411) is arranged at the top end of the loading unit (141) in a penetrating way; an oil cylinder piston (1412) is arranged in the loading unit (141), a connecting screw rod (1415) is arranged at the bottom of the oil cylinder piston (1412), and an adapter plate (1417), a gravity sensor (1416), a connecting plate (1413) and a loading plate (1414) are sequentially stacked on the connecting screw rod (1415);
The experimental platform (2) is provided with a platform frame (21), two support plates (211) are symmetrically arranged on the platform frame (21), the tops of the two support plates (211) are slidably hung on a mounting platform (212), and the mounting platform (212) realizes sliding adjustment of the inclination angle of the support plates (211) through an adjusting component (22) and a supporting component (23); the loading mechanism (1) is fixedly arranged on the mounting platform (212);
An adjusting plate (2121) is arranged under the mounting platform (212) and corresponds to the supporting plate (211); the adjusting assembly (22) comprises a motor (221) fixedly arranged outside the supporting plate (211), the output end of the motor (221) is fixedly connected with a rotating rod (228) penetrating through the supporting plate (211), the output end of the rotating rod (228) far away from the motor (221) is fixedly connected with a first gear (225), and the first gear (225) is meshed with a second gear (226);
The second gear (226) is fixedly arranged on the adjusting plate (2121);
the lower edge of the adjusting plate (2121) is arc-shaped, an arc-shaped adjusting groove (2122) is formed in the side wall of the supporting plate (211), an auxiliary roller (224) is connected in the adjusting groove (2122) in a rolling mode, and the auxiliary roller (224) is connected with the adjusting plate (2121) in a rotating mode.
2. The large-scale true three-dimensional vacuum water-permeable disaster simulation experiment device according to claim 1, wherein the maximum rotation angle of the first gear (225) and the second gear (226) is 32 °.
3. The large-scale true three-dimensional vacuum water-permeable disaster simulation experiment device according to claim 1, wherein the supporting component (23) comprises an auxiliary plate (233) arranged on the bench frame (21), a supporting block (231) is fixedly arranged on the auxiliary plate (233), and an auxiliary wheel (232) is arranged on the supporting block (231);
the auxiliary wheel (232) is clamped with the lower edge of the adjusting plate (2121).
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