Automatic laying device, system and method for two-dimensional similarity simulation test bench

Abstract

The present invention discloses an automatic laying device, system and method for a two-dimensional similar simulation test bench, which belongs to the field of similar material simulation technology. The automatic laying device includes an integrated hopper, a sliding mechanism, a cylinder, a flattening and compacting mechanism and a main control console. The integrated hopper can slide horizontally under the action of the sliding mechanism to achieve the laying of similar simulation materials. By connecting a hinged plate at the end of the cylinder and connecting a baffle plate on the hinged plate, the discharge speed of the discharge port is controlled by controlling the cylinder to push and push out in the direction of the discharge port; the flattening and compacting mechanism includes a flattening and compacting plate and a mounting structure. The height of the flattening and compacting plate is adjusted by the mounting structure to ensure the flatness of the similar simulation material. The present invention can realize automatic stirring, automatic loading and automatic laying of similar materials. On the premise of ensuring fully automatic laying and flat laying, the workload of operators is reduced, and the accuracy and efficiency of the experiment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of similar material simulation, and in particular to an automatic laying device, system and method for a two-dimensional similar simulation test bench. Background Art

[0002] Similar material simulation is an extremely important experimental method in mining engineering, geotechnical engineering and other disciplines. It can intuitively reproduce the situation on the engineering site. However, nowadays, conducting a similar material simulation experiment often requires huge manpower and material resources. During the experiment, manual laying is also difficult to ensure the flatness of each rock layer. The accuracy of the experiment cannot be effectively controlled, resulting in a large deviation in the experimental results. In order to solve the technical problem of low laying efficiency caused by manual laying, researchers designed an automatic laying device. The relevant research reports of the existing technology are mainly:

[0003] Application No. 201510689917.1 discloses a fully automatic similar simulation test device and method that can simulate inclined rock formations, which is composed of a control system, a batching system, a conveying system, a test frame, an automatic leveling and tamping device, a hydraulic support and loading device, an automatic excavation device, etc. In the device, the conveying system transports similar materials to the test frame and then directly level them using a leveling device. However, when this method transports similar materials to the test frame, the materials are first piled up before the leveling device level them, so the uniform laying of the materials cannot be guaranteed in the process, and the tamping jack in the tamping device cannot be moved, and the model cannot be completely leveled, which affects the experimental results.

[0004] Application No. 201811062735.1 discloses an automatic paving device for similar material simulation test and its use method. The device includes a hopper, a mixer, a belt conveyor, etc. The device only uses an automatic device in the process of transporting similar materials. However, for the paving step of similar materials, manual uniform paving is still required. Manual uniform paving relies on experience, cannot guarantee that each layer of material is completely flat, and wastes manpower.

[0005] Application No. 201510889401.1 discloses an automatic material laying device for similar material simulation tests and its use method, which integrates a material box and a vibration device. The device requires manual addition of prefabricated materials into the material box, and manual observation of the hopper balance during the laying process. A handheld switch controls the direction and speed of the vibration device, which results in high labor intensity for the experimenters and low experimental efficiency.

[0006] In summary, the automatic material laying device used for similar material simulation test in the prior art needs to be further improved. Summary of the invention

[0007] One of the purposes of the present invention is to provide an automatic laying device for a two-dimensional similarity simulation test bench, which can realize automatic stirring, automatic loading and automatic laying of similar materials. Under the premise of ensuring fully automatic laying and smooth laying, it reduces the workload of operators and improves the accuracy and efficiency of the experiment.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An automatic laying device for a two-dimensional similar simulation test bench, comprising an integrated hopper, a sliding mechanism, a cylinder, a shovel-leveling and compacting mechanism, and a main control console;

[0010] The integrated hopper comprises a hopper body, the cross-sectional area of ​​which decreases from top to bottom, the top of the hopper body is provided with a feed inlet, and the bottom of the hopper body is provided with a discharge outlet;

[0011] The sliding mechanism comprises a first sliding wheel, a second sliding wheel and a hollow right-angle reducer for driving and controlling the first sliding wheel and the second sliding wheel to slide;

[0012] The side of the hopper body is provided with a first connecting plate and a second connecting plate, on which the first sliding wheel and the second sliding wheel are installed, and the installation heights of the two first sliding wheels and the two second sliding wheels are the same, and the hollow right-angle reducer is installed on the outside of the first sliding wheel and the second sliding wheel located on one side of the first connecting plate, and is used to control and realize the rotation of the two first sliding wheels and the two second sliding wheels;

[0013] A support frame perpendicular to the second connecting plate is also installed on the second connecting plate;

[0014] One end of the cylinder is connected to an air pump station, and the other end is connected to a hinged plate, and the hinged plate is connected to a baffle, and the cylinder is supported by the support frame, and the shape and size of the baffle are adapted to the shape and size of the discharge port. The air pump station provides power to control the cylinder and make it pass through the support frame to advance or push out in the direction of the discharge port, and the discharge speed of the discharge port is controlled by controlling the advancement and push out of the cylinder in the direction of the discharge port;

[0015] The flattening and compacting mechanism comprises a flattening and compacting plate and a mounting structure, wherein the flattening and compacting plate comprises a plate 1 and a plate 2, wherein the plate 1 is mounted behind the discharge port through the mounting structure, and the plate 1 is mounted in a direction perpendicular to the sliding directions of the first sliding wheel and the second sliding wheel, and the plate 2 is connected to the bottom of the plate 1 and is perpendicular to the plate 1, and when similar materials are discharged from the discharge port, they are flattened and compacted by the plate 2; a plurality of circular holes are vertically arranged on the plate 1, and the mounting structure comprises fixing screws matching the circular holes, and the height of the flattening and compacting plate can be adjusted by adjusting the mounting position of the circular holes;

[0016] A pressure sensor is also provided at the bottom of the second board, and the pressure sensor is connected to the main control console via a data line.

[0017] The beneficial technical effects directly brought about by the above technical solution are:

[0018] It can realize the automatic laying of similar materials, save manpower, and has a simple structure and is easy to operate.

[0019] The most important thing is that the automatic laying device can avoid the accumulation of similar materials when laying similar materials layer by layer. Since similar materials will not accumulate in the test chamber, it also avoids the occurrence of uneven hardness and uneven model of similar materials in the later stage. The reasons are briefly analyzed as follows:

[0020] First, a baffle matching the shape and size of the discharge port is provided at one end of the cylinder. The extension length of the cylinder is adjustable. The air pump station is used to control the advancement or pushout of the cylinder. Combined with the baffle, the size of the discharge port can be adjusted, thereby achieving the effect of adjusting the discharge speed of similar materials.

[0021] Secondly, combined with the design of the leveling and compacting plate behind the discharge port, in the leveling and compacting plate, plate one is installed in a direction perpendicular to the sliding direction of the first sliding wheel and the second sliding wheel, and plate two is connected to the bottom of plate one and is perpendicular to plate one. After the similar material is discharged from the discharge port, it is leveled and compacted by plate two, and because plate two is compacted along with the movement of the first pulley and the second pulley, it is laid and compacted at the same time, which can better ensure the flatness of the similar material.

[0022] Finally, the automatic laying device mentioned above, by providing the first sliding wheel and the second sliding wheel, can not only drive the entire device to slide, but also facilitate installation. In actual use, the first sliding wheel and the second sliding wheel can be quickly installed by setting them on the flange position of the I-beam.

[0023] Preferably, the lengths of the first and second plates are the same, and the width of the second plate is 10 to 20 cm.

[0024] Preferably, the support frame includes four support rods arranged in a frame shape, one end of each support rod is connected to the second connecting plate, and the other end is connected to a square frame, the cylinder is installed on the square frame, and the protruding end of the cylinder passes through the support frame and is pushed downwardly toward the discharge port.

[0025] Another object of the present invention is to provide an automatic laying system for a two-dimensional similar simulation test bench, comprising a stirring device, an automatic feeding device, an installation device and the above-mentioned automatic laying device for a two-dimensional similar simulation test bench, wherein the stirring device is used for preparing and stirring similar simulation materials; the discharge port of the stirring device is connected to the automatic feeding device, and the similar simulation materials are transported to the hopper body of the automatic laying device through the automatic feeding device.

[0026] Preferably, the installation device includes an I-beam, and the two-dimensional similarity simulation test bench includes an equipment frame and a test chamber located in the equipment frame. The I-beam is installed on the front and rear sides of the test chamber, and the first sliding wheel and the second sliding wheel are respectively installed on the flange positions of the I-beam. When similar simulation materials need to be laid in the test chamber, the automatic laying device is placed on the I-beam where a layer of similar material is to be laid through the electric hoist on the top of the equipment frame, and is installed together with the I-beam.

[0027] Preferably, the stirring device comprises a stirring drum, one end of the stirring drum is a feed port, the end away from the feed port is a discharge port, and the feed port is connected to a water injection device;

[0028] The automatic feeding device includes a conveyor and a feeding hose. The conveyor is below the discharge port of the stirring device. One end of the feeding hose is connected to the discharge end of the conveyor, and the other end is located above the integrated hopper. The feeding hose located near the integrated hopper is fixed to the integrated hopper by a fixing member. The fixing member includes a slender steel bar with holes. The slender steel bar is installed on the right column of the equipment frame. A plurality of clips are fixed on the slender steel bar. A fixing rod is set toward the test bin through each clip. A hollow iron plate is installed on the other end of the fixing rod. The iron plate is fixed to the end of the fixing rod by bolts. The feeding hose located near the integrated hopper passes through the iron plate and is fixed to the fixing rod. The discharge port end of the feeding hose is placed directly above the integrated hopper. When the integrated hopper slides, the feeding hose moves with the integrated hopper under the action of the fixing member.

[0029] Preferably, it also includes a main control system, which is connected to the automatic laying device and is used to control the laying of the automatic laying device.

[0030] Another object of the present invention is to provide a method for using the above-mentioned automatic laying system for a two-dimensional similarity simulation test bench, which comprises the following steps in sequence:

[0031] The first step is to adjust the electric hoist located on the upper part of the equipment frame, install the I-beam at the bottom of the two-dimensional similar simulation test bench, set up the automatic laying device on the I-beam, and control the hollow right-angle reducer to place the automatic laying device close to the right column of the equipment frame;

[0032] Step 2: Fix the feeding hose directly above the integrated hopper through the fixing parts, and place the bottom of the feeding hose at the discharge port of the stirring device;

[0033] Step 3: Push the baffle toward the discharge port by controlling the cylinder, so that the discharge port is fully closed;

[0034] Step 4: Adjust the height of the leveling and compacting device. The specific steps are: unload the bolts of plate one, adjust the position of plate one up and down, and fix the bolts to achieve the height adjustment of the leveling and compacting device.

[0035] Step 5: Calculate the ratio of similar materials, weigh raw materials such as river sand and calcium carbonate, pour the weighed raw materials into the stirring device, connect the stirring device to the water injection device, start timed stirring, and obtain the stirred similar materials;

[0036] Step 6: Transfer the stirred similar materials to the conveyor through the discharge port of the stirring device, start the conveyor, and convey the similar materials to the integrated hopper through the feeding hose;

[0037] Step 7: The main control system moves the automatic paving device to the rightmost end of the two-dimensional similar simulation test bench, sets the moving speed of the automatic paving device by adjusting the hollow right-angle reducer, controls the cylinder to push it out and fully open the discharge port, and paving similar materials. As similar materials are paved, the leveling and compacting plate behind the discharge port automatically levels and compacts the layer of similar materials, and monitors the leveling of similar materials through pressure sensors.

[0038] Step 8: Laying mica powder: pour the mica powder directly into the conveyor, and convey it to the automatic laying device through the feeding device to lay the mica powder;

[0039] Step 9. Repeat steps 1 to 7 until each layer of similar materials is laid;

[0040] Step 10: Lay out the flexible loading device, and lower the reaction beam on the upper part of the two-dimensional similar simulation test bench through the main control system to load the laid model;

[0041] Step 11: Remove the front and rear baffles and operate the automatic excavation device to carry out coal seam excavation work.

[0042] Compared with the prior art, the present invention brings the following beneficial technical effects:

[0043] The automatic paving device adopted in the present invention realizes the automation of paving of similar materials. The paving equipment moves at a uniform speed during the paving process, ensuring the uniform paving of similar materials. The automatic paving device is equipped with a leveling and compacting device, which effectively ensures the smooth paving of the entire model.

[0044] The automatic laying system of the present invention combines a stirring device, an automatic feeding device, an installation device and an automatic laying device, and has a high degree of automation. After the laying equipment is set up, the sand and gravel and other materials after calculation and weighing are poured into the automatic stirring device, and the complete laying of similar materials can be ensured. The entire laying process of the test bench is controlled by a computer, which effectively ensures the accuracy of the experiment, improves the precision of the experiment, reduces the labor intensity of the experimenters, and greatly improves the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The present invention will be further described below in conjunction with the accompanying drawings:

[0046] Figure 1 It is a schematic diagram of the installation of the automatic laying device of the present invention on a two-dimensional similar simulation test bench;

[0047] Figure 2 It is a structural schematic diagram of the automatic laying device of the present invention;

[0048] Figure 3 It is a side view of the automatic laying device of the present invention;

[0049] Figure 4 A top view of the automatic laying device of the present invention;

[0050] Figure 5 A schematic diagram of the structure of a stirring device of the automatic paving system of the present invention;

[0051] In the figure:

[0052] 1. Automatic laying device, 2. First sliding wheel, 3. Second sliding wheel, 4. Cylinder, 5. Leveling and compacting mechanism, 6. Discharge port, 7. Integrated hopper, 8. Baffle, 9. Hollow right-angle reducer, 10. Support rod, 11. Air pump station, 12. Feed port, 13. Discharge port, 14. Bracket. DETAILED DESCRIPTION

[0053] The present invention proposes an automatic laying device for a two-dimensional similar simulation test bench. In order to make the advantages and technical solutions of the present invention clearer and more specific, the present invention is described in detail below in conjunction with specific embodiments.

[0054] The two-dimensional similarity simulation test bench described in the present invention includes an equipment frame and a test chamber located in the equipment frame, wherein the frame includes a base, left and right columns and a top beam located on both sides of the base, and the test chamber is a rectangular structure as a whole and is located in the frame.

[0055] Combination Figure 2 , Figure 3 and Figure 4 As shown, the present invention is an automatic laying device for a two-dimensional similar simulation test bench, comprising an integrated hopper 7, a sliding mechanism, a cylinder 4, a leveling and compacting mechanism 5 and a main control console. The integrated hopper is used to hold similar simulation materials, the sliding mechanism is used to ensure the sliding of the automatic laying device, the cylinder 4 controls the discharge speed of the integrated hopper 7, and the leveling and compacting mechanism ensures the flatness of the laying of similar simulation materials.

[0056] The integrated hopper 7 for containing similar simulation materials has an overall funnel shape, that is, it is wide at the top and narrow at the bottom, so that it is convenient to control the discharge speed of the discharge port. Specifically, the integrated hopper includes a hopper body, and the cross-sectional area of ​​the hopper body decreases from top to bottom. A feed port is provided at the top of the hopper body, that is, its top is open-shaped design, and similar materials can enter the hopper body from any position of its top. A discharge port 6 is provided at the bottom of the hopper body, and the shape of the discharge port is circular or square.

[0057] like Figure 3 As shown, the sliding mechanism includes a first sliding wheel 2, a second sliding wheel 3 and a hollow right-angle reducer 9 for driving and controlling the first sliding wheel and the second sliding wheel to slide, wherein the first sliding wheel and the second sliding wheel are provided in two groups, each group includes a first sliding wheel and a second sliding wheel, and the structure of the first sliding wheel and the second sliding wheel can be realized by referring to the existing technology, and no detailed description is given here.

[0058] A first connecting plate and a second connecting plate are provided on the side of the hopper body, and the main functions of the first connecting plate and the second connecting plate are to install the first sliding wheel, the second sliding wheel and the support frame, and the first sliding wheel and the second sliding wheel are installed on the first connecting plate and the second connecting plate. The specific installation method is to fix the connection by bolts, fix the first sliding wheel to the first connecting plate by bolts, and fix the second sliding wheel to the first connecting plate by bolts. The installation heights of the first sliding wheel and the second sliding wheel are the same. In order to ensure translation, the installation heights of the two are the same, and the installation heights of the first sliding wheel and the second sliding wheel located on the second connecting plate are also the same. The directions of the wheels of the first sliding wheel and the second sliding wheel are their sliding directions, and the directions of the wheels are parallel to the side directions of the hopper body. The hollow right-angle reducer is installed on the outer sides of the first sliding wheel and the second sliding wheel located on one side of the first connecting plate, and is used to control and realize the rotation of the two first sliding wheels and the two second sliding wheels.

[0059] The support frame includes four support rods arranged in a frame shape, one end of each support rod 10 is connected to the second connecting plate, and the other end is connected to a square frame. The cylinder is installed on the square frame, and the extended end of the cylinder passes through the support frame and is pushed below the discharge port.

[0060] The hollow right-angle reducer is connected to the second sliding wheel to control the rotation of the second sliding wheel, and the remaining sliding wheels are driven wheels.

[0061] One end of the cylinder is connected to an air pump station 11, and the other end is connected to a hinged plate, and the hinged plate is connected to a baffle 8. The cylinder is supported by a support frame. The shape and size of the baffle are adapted to the shape and size of the discharge port 6. Preferably, both are round or square. The air pump station provides power to control the cylinder 4 and make it pass through the support frame to advance or push out in the direction of the discharge port. The discharge speed of the discharge port is controlled by controlling the advancement and push out of the cylinder in the direction of the discharge port.

[0062] The flattening and compacting mechanism 5 includes a flattening and compacting plate and a mounting structure, wherein the flattening and compacting plate includes a plate 1 and a plate 2, wherein the plate 1 is mounted behind the discharge port through the mounting structure, and the plate 1 is mounted in a direction perpendicular to the sliding directions of the first sliding wheel and the second sliding wheel, and the plate 2 is connected to the bottom of the plate 1 and is perpendicular to the plate 1. When similar materials are discharged from the discharge port, they are flattened and compacted by the plate 2; a plurality of circular holes are vertically arranged on the plate 1, and the mounting structure includes fixing screws matching the circular holes, and the height of the flattening and compacting plate is adjusted by adjusting the mounting position of the circular holes;

[0063] The above-mentioned leveling and compacting plate and the installation mechanism cooperate with each other, and the leveling and compacting plate can be installed at an appropriate height through the installation mechanism according to the laying requirements of similar simulation materials. The specific height adjustment is achieved through multiple circular holes arranged vertically on the first plate. If the installation mechanism is installed on the circular holes at different heights, the height adjustment of the leveling and compacting plate is completed. When laying similar materials from bottom to top, the height of the leveling and compacting plate is adjusted so that the second plate is just compacted on the similar simulation material.

[0064] Preferably, a pressure sensor is also provided at the bottom of the second plate, and the pressure sensor is connected to the main control console via a data line. The pressure sensor transmits data to the main control console, so that the main control console can adjust the discharge speed of the discharge port.

[0065] like Figure 1 As shown, the above-mentioned automatic laying device for a two-dimensional similar simulation test bench is applied to the automatic laying system of a two-dimensional similar simulation test bench, and the automatic laying device is also used in conjunction with a stirring device, an automatic feeding device and an installation device. The stirring device is used to prepare and stir similar simulation materials; the discharge port of the stirring device is connected to the automatic feeding device, and the similar simulation materials are transported to the hopper body of the automatic laying device through the automatic feeding device. Specifically, Figure 5 As shown, the stirring device includes a stirring drum, one end of the stirring drum is a feed port 12, the end away from the feed port is a discharge port 13, the feed port is connected to a water injection device, and a bracket 14 is arranged below the stirring drum. For example, the feed port of the stirring device is preferably on the left side of the stirring drum, and the discharge port of the stirring device is on the right side of the stirring drum. The raw materials required for similar simulation materials all enter the stirring drum through the feed port of the stirring device, and a proper amount of water is added to the stirring drum through the water injection device for mechanical stirring. The mechanical stirring can be completed in conjunction with an electrical control system and related pipelines. The specific control method can refer to the existing technology and will not be described in detail in this article.

[0066] The above-mentioned automatic feeding device includes a conveyor and a feeding hose. The conveyor is located below the discharge port of the stirring device. The similar simulation material discharged from the discharge port of the stirring device enters the conveyor and is transported to the feeding hose through the conveyor belt of the conveyor. That is: by connecting one end of the feeding hose to the discharge end of the conveyor, the similar simulation material can be transported into the feeding hose, and the other end of the feeding hose is located above the integrated hopper.

[0067] When the integrated hopper is moved during laying, in order to facilitate the feeding hose to move with the integrated hopper, the feeding hose located near the integrated hopper is fixed by a fixing piece.

[0068] Specifically, the fixing part includes a slender steel bar, which is provided with holes. The slender steel bar is installed on the right column of the equipment frame, and a plurality of buckles are fixed on the slender steel bar. A fixing rod is set to the test bin through each buckle, and a hollow iron plate is installed on the other end of the fixing rod. The iron plate is fixed to the end of the fixing rod by bolts. The feeding hose near the integrated hopper passes through the iron plate and is fixed to the fixing rod. The discharge port end of the feeding hose is placed directly above the integrated hopper. When the integrated hopper slides, the feeding hose moves with the integrated hopper under the action of the fixing part. This design can realize laying while feeding, avoiding the accumulation of similar simulated materials.

[0069] Preferably, in order to realize full automation of the automatic laying system, the automatic laying device, the stirring device and the automatic feeding device are all connected to the main control system, and the main control system controls the laying of the automatic laying device, the stirring time of the stirring device, and further controls the feeding speed of the automatic feeding device.

[0070] In order to facilitate the quick and convenient installation of the automatic laying device, the present invention has a targeted installation device, which specifically includes an I-beam. The structure of the I-beam is the same as that of the prior art, including a web and flange plates on both sides. The I-beam is installed on the front and rear sides of the test chamber, and the first sliding wheel and the second sliding wheel are respectively installed on the flange positions of the I-beam. When similar simulation materials need to be laid in the test chamber, the automatic laying device is placed on the I-beam where a layer of similar material is to be laid through the electric hoist on the top of the equipment frame, and is installed together with the I-beam.

[0071] The following is a method for using the automatic laying system for the two-dimensional similarity simulation test bench in conjunction with a specific embodiment, which includes the following steps in sequence:

[0072] The first step is to adjust the electric hoist located on the upper part of the equipment frame, install the I-beam at the bottom of the two-dimensional similar simulation test bench, set up the automatic laying device on the I-beam, and control the hollow right-angle reducer to place the automatic laying device close to the right column of the equipment frame;

[0073] Step 2: Fix the feeding hose directly above the integrated hopper through the fixing parts, and place the bottom of the feeding hose at the discharge port of the stirring device;

[0074] Step 3: Push the baffle to the discharge port position by controlling the air cylinder, so that the discharge port is fully closed;

[0075] Step 4: Unload the bolts of plate 1, adjust the position of plate 1 up and down, and fix the bolts to achieve height adjustment of the leveling and compacting device;

[0076] Step 5: Calculate the ratio of similar materials, weigh raw materials such as river sand and calcium carbonate, pour the weighed raw materials into the stirring device, connect the stirring device to the water injection device, control it through the main control system, start timed stirring, and obtain the stirred similar materials;

[0077] Step 6: Transfer the stirred similar materials to the conveyor through the discharge port of the stirring device, start the conveyor, and convey the similar materials to the integrated hopper through the feeding hose;

[0078] Step 7: The main control system moves the automatic paving device to the rightmost end of the two-dimensional similar simulation test bench, sets the moving speed of the automatic paving device by adjusting the hollow right-angle reducer, controls the cylinder to push it out and fully open the discharge port, and paving similar materials. As similar materials are paved, the leveling and compacting plate behind the discharge port automatically levels and compacts the layer of similar materials, and monitors the leveling of similar materials through pressure sensors.

[0079] Step 8: Laying mica powder: pour the mica powder directly into the conveyor, and convey it to the automatic laying device through the feeding device to lay the mica powder;

[0080] Step 9. Repeat steps 1 to 7 until each layer of similar materials is laid;

[0081] Step 10: Lay out the flexible loading device, and lower the reaction beam on the upper part of the two-dimensional similar simulation test bench through the main control system to load the laid model;

[0082] Step 11. Remove the front and rear baffles and operate the automatic excavation device to carry out coal seam excavation.

[0083] The above-mentioned similar materials are laid layer by layer. During the laying process, those skilled in the art can adjust the height of the automatic laying device. In addition, they can also adjust the height of the leveling and compacting plate according to the actual laying situation.

[0084] In summary, the automatic laying system of the present invention can realize automatic stirring, automatic loading and automatic laying of similar materials, reduce the workload of personnel, and improve the accuracy and efficiency of experiments.

[0085] Parts not described in the present invention can be implemented by referring to the existing technology.

[0086] It should be noted that any equivalent method or obvious variation method made by those skilled in the art under the guidance of this specification should be within the protection scope of the present invention.

Claims

1. An automatic laying system for a two-dimensional similar simulation test bench, comprising a stirring device, an automatic feeding device, an installation device and an automatic laying device for a two-dimensional similar simulation test bench, characterized in that: The automatic paving device comprises an integrated hopper, a sliding mechanism, a cylinder, a leveling and compacting mechanism and a main control console; The integrated hopper comprises a hopper body, the cross-sectional area of ​​which decreases from top to bottom, the top of the hopper body is provided with a feed inlet, and the bottom of the hopper body is provided with a discharge outlet; The sliding mechanism comprises a first sliding wheel, a second sliding wheel and a hollow right-angle reducer for driving and controlling the first sliding wheel and the second sliding wheel to slide; The side of the hopper body is provided with a first connecting plate and a second connecting plate, on which the first sliding wheel and the second sliding wheel are installed, and the installation heights of the two first sliding wheels and the two second sliding wheels are the same, and the hollow right-angle reducer is installed on the outside of the first sliding wheel and the second sliding wheel located on one side of the first connecting plate, and is used to control and realize the rotation of the two first sliding wheels and the two second sliding wheels; A support frame perpendicular to the second connecting plate is also installed on the second connecting plate; One end of the cylinder is connected to an air pump station, and the other end is connected to a hinged plate, and the hinged plate is connected to a baffle, and the cylinder is supported by the support frame, and the shape and size of the baffle are adapted to the shape and size of the discharge port. The air pump station provides power to control the cylinder and make it pass through the support frame to advance or push out in the direction of the discharge port, and the discharge speed of the discharge port is controlled by controlling the advancement and push out of the cylinder in the direction of the discharge port; The flattening and compacting mechanism comprises a flattening and compacting plate and a mounting structure, wherein the flattening and compacting plate comprises a plate 1 and a plate 2, wherein the plate 1 is mounted behind the discharge port through the mounting structure, and the plate 1 is mounted in a direction perpendicular to the sliding directions of the first sliding wheel and the second sliding wheel, and the plate 2 is connected to the bottom of the plate 1 and is perpendicular to the plate 1, and when similar materials are discharged from the discharge port, they are flattened and compacted by the plate 2; a plurality of circular holes are vertically arranged on the plate 1, and the mounting structure comprises fixing screws matching the circular holes, and the height of the flattening and compacting plate can be adjusted by adjusting the mounting position of the circular holes; A pressure sensor is also provided at the bottom of the second board, and the pressure sensor is connected to the main control console via a data line; The stirring device is used to prepare and stir similar simulation materials; the discharge port of the stirring device is connected to the automatic feeding device, and the similar simulation materials are transported to the hopper body of the automatic laying device through the automatic feeding device; The installation device includes an I-beam, and the two-dimensional similar simulation test bench includes an equipment frame and a test chamber located in the equipment frame. The I-beam is installed on the front and rear sides of the test chamber, and the first sliding wheel and the second sliding wheel are respectively installed at the flange positions of the I-beam. When similar simulation materials need to be laid in the test chamber, the automatic laying device is placed at the I-beam where a layer of similar materials is to be laid through the electric hoist on the top of the equipment frame, and is installed together with the I-beam; The stirring device comprises a stirring drum, one end of which is a feed inlet, and the other end away from the feed inlet is a discharge inlet, and the feed inlet is connected to a water injection device; The automatic feeding device includes a conveyor and a feeding hose. The conveyor is below the discharge port of the stirring device. One end of the feeding hose is connected to the discharge end of the conveyor, and the other end is located above the integrated hopper. The feeding hose located near the integrated hopper is fixed to the integrated hopper by a fixing member. The fixing member includes a slender steel bar with holes. The slender steel bar is installed on the right column of the equipment frame. A plurality of clips are fixed on the slender steel bar. A fixing rod is set toward the test bin through each clip. A hollow iron plate is installed on the other end of the fixing rod. The iron plate is fixed to the end of the fixing rod by bolts. The feeding hose located near the integrated hopper passes through the iron plate and is fixed to the fixing rod. The discharge port end of the feeding hose is placed directly above the integrated hopper. When the integrated hopper slides, the feeding hose moves with the integrated hopper under the action of the fixing member.

2. The automatic laying system for a two-dimensional similarity simulation test bench according to claim 1, characterized in that: The lengths of the first and second boards are the same, and the width of the second board is 10 to 20 cm.

3. The automatic laying system for a two-dimensional similarity simulation test bench according to claim 1, characterized in that: The support frame includes four support rods arranged in a frame shape, one end of each support rod is connected to the second connecting plate, and the other end is connected to a square frame. The cylinder is installed on the square frame, and the protruding end of the cylinder passes through the support frame and is pushed toward the bottom of the discharge port.

4. The automatic laying system for a two-dimensional similarity simulation test bench according to claim 1, characterized in that: It also includes a main control system, which is connected to the automatic laying device and is used to control the laying of the automatic laying device.

5. The method for using the automatic laying system for a two-dimensional similarity simulation test bench according to claim 4 is characterized in that: The following steps are included in sequence: The first step is to adjust the electric hoist located on the upper part of the equipment frame, install the I-beam at the bottom of the two-dimensional similar simulation test bench, set up the automatic laying device on the I-beam, and control the hollow right-angle reducer to place the automatic laying device close to the right column of the equipment frame; Step 2: Fix the feeding hose directly above the integrated hopper through the fixing parts, and place the bottom of the feeding hose at the discharge port of the stirring device; Step 3: Push the baffle to the discharge port position by controlling the air cylinder, so that the discharge port is fully closed; Step 4: Adjust the height of the leveling and compacting device; Step 5: Calculate the ratio of similar materials, weigh the main raw materials river sand and calcium carbonate, pour the weighed raw materials into the stirring device, connect the stirring device with the water injection device, start the timed stirring, and obtain the stirred similar materials; Step 6: Transfer the stirred similar materials to the conveyor through the discharge port of the stirring device, start the conveyor, and convey the similar materials to the integrated hopper through the feeding hose; Step 7: The main control system moves the automatic paving device to the rightmost end of the two-dimensional similar simulation test bench, sets the moving speed of the automatic paving device by adjusting the hollow right-angle reducer, controls the cylinder to push it out and fully open the discharge port, and paving similar materials. As similar materials are paved, the shoveling and compacting plate behind the discharge port automatically shovels and compacts the layer of similar materials, and monitors the paving flatness of similar materials through pressure sensors. Step 8: Laying mica powder: pour the mica powder directly into the conveyor, and convey it to the automatic laying device through the feeding device to lay the mica powder; Step 9. Repeat steps 1 to 7 until each layer of similar materials is laid; Step 10: Lay out the flexible loading device, and lower the reaction beam on the upper part of the two-dimensional similar simulation test bench through the main control system to load the laid model; Step 11: Remove the front and rear baffles and operate the automatic excavation device to carry out coal seam excavation work.

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