Virtual simulation experiment table for observing advanced bearing pressure of coal face

Abstract

The utility model discloses a virtual simulation experiment table for observing advanced bearing pressure of a coal face, and relates to the technical field of experiment tables. The device comprises a box body, a movable plate is arranged in the box body, the top surface of the movable plate is rotatably connected with a bearing plate, the top surface of the bearing plate is fixedly connected with a simulation experiment body, the top surface of the bearing plate and one side of the simulation experiment body are fixedly connected with a boss, and an oil pressure type borehole stress meter is placed on the top surface of the boss; according to the utility model, when simulation experiment teaching needs to be carried out, the simulation experiment body can be completely lifted out of the box body for teaching, and after the teaching is completed, the simulation experiment body can fall back into the box body again through the electric cylinder, so that the simulation experiment body is protected and is prevented from being easily damaged; and the position of the simulation experiment body can be changed during teaching, so that surrounding students can watch and learn conveniently, and the situation that some students cannot watch the teaching process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental platforms, in particular to a virtual simulation experimental platform for observing the advanced support pressure of a coal mining working face. Background Art

[0002] After searching, a mine working face simulation experimental platform with the publication (announcement) number of "CN204202895U" was found, which includes simulated tunnels, underground simulation equipment, simulated dust sources, dust removal fans, spray water supply equipment, wind speed sensors and dust concentration sensors.

[0003] Although, a mine working face simulation experimental platform with the publication (announcement) number of "CN204202895U" adopts a simulated tunnel, and in the simulated tunnel, with the help of underground simulation equipment, simulated dust source, dust removal fan and spray water supply equipment, the wind flow, dust and spray conditions of the mine working face are simulated, and then the wind speed sensor and dust concentration sensor are used to measure the relevant data in the simulated tunnel, so as to determine the wind-dust-fog migration, coupling and sedimentation laws under different ventilation modes, and obtain the optimal parameters for ventilation dust removal and spray dust reduction of the mine working face, so as to provide reliable technical support for the scientific and reasonable arrangement of ventilation and spray dust removal systems, determine the optimal spray pressure, control the wind speed to achieve the best spray effect, detect the dust reduction effect of spray equipment, and develop high-efficiency nozzles.

[0004] However, the experimental platform cannot be protected when not in use for teaching, and when teaching is in progress, the surrounding students cannot watch and learn better. To address the above problems, the inventors proposed a virtual simulation experimental platform for observing the advance support pressure of coal mining working faces to solve the above problems. Utility Model Content

[0005] In order to solve the current problems that the surrounding students cannot watch and learn better during teaching, and the experimental platform cannot be protected when not needed for teaching; the purpose of the utility model is to provide a virtual simulation experimental platform for observing the advance support pressure of coal mining working face.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: a virtual simulation experiment bench for observing the advance support pressure of a coal mining working face, comprising a box body, a movable plate is arranged inside the box body, the top surface of the movable plate is rotatably connected to a supporting plate, an electric cylinder is arranged below the movable plate, the output shaft end of the electric cylinder is fixedly connected to a toothed plate, the side wall of the toothed plate is meshed with a gear, a rotating shaft is inserted and fixedly connected to the middle of the side wall of the gear, a connecting plate is sleeved on the side wall of the rotating shaft and on both sides of the gear, the end of the connecting plate away from the gear is fixedly connected to the bottom surface of the movable plate, the top surface of the supporting plate is fixedly connected to a simulation test body, the top surface of the supporting plate and one side of the simulation test body are fixedly connected to a boss, a hydraulic drilling stress gauge is placed on the top surface of the boss, and a placement groove is provided on the top surface of the boss, and the hydraulic drilling stress gauge can be placed in the placement groove.

[0007] Preferably, the side wall of the electric cylinder is provided with a base, the base is fixedly connected to the inner bottom wall of the box body, the bottom surface of the toothed plate is fixedly connected with a slide rail, the inner bottom wall of the box body is provided with a slide groove, the slide rail is located in the slide groove, and the slide rail is slidably connected to the slide groove, the side wall of the rotating shaft is rotatably sleeved with a bearing seat, the bottom surface of the bearing seat is fixedly connected to the inner bottom wall of the box body. When it is necessary to carry out simulation experiment teaching, the box cover is removed from the box body by the handle, the electric cylinder is started, and the toothed plate moves under the action of the output shaft of the electric cylinder, and the movement of the toothed plate can be made more stable through the mutual cooperation of the slide rail and the slide groove, and the mutual meshing of the toothed plate and the gear can make the connecting plate movable, and then the movable plate can drive the supporting plate to rise until the bottom surface of the supporting plate is flush with the top surface of the box body. At this time, the simulation experiment body is completely lifted out of the box body for demonstration teaching.

[0008] Preferably, a box cover is provided on the top surface of the box body, and a handle is fixedly connected to the side of the box cover facing away from the box body. The box cover can be removed from the box body by the handle to facilitate simulation experiment teaching. When the teaching is completed, the simulated experiment body can be dropped back into the box body again and the box cover can be closed to protect the simulated experiment body and prevent it from being easily damaged. The movable plate and the supporting plate are both matched with the box opening of the box body, and the four walls of the movable plate and the supporting plate are both in contact with the inner wall of the box body, and the movable plate and the supporting plate can be moved up and down in a horizontal manner in the box body.

[0009] Preferably, a convex shaft is fixedly connected to the middle part of the top surface of the movable plate, the convex shaft extends into the supporting plate, and the convex shaft is rotatably connected to the supporting plate, a ring body is fixedly connected to the top surface of the movable plate, the convex shaft is located in the ring body, and the axis of the convex shaft coincides with the axis of the ring body, an annular groove is provided on the bottom surface of the supporting plate, and the ring body is rotatably connected to the annular groove, when the supporting plate is raised, the clamping rod is pulled upward to separate the clamping rod from the clamping hole, at this time, a corner of the supporting plate is pushed, and under the action of the convex shaft and the ring body, the supporting plate can be rotated around the convex shaft to change The position of the simulated experimental body is convenient for students around to watch and learn. The four corners of the top surface of the movable plate are provided with clamping holes, and the four corners of the top surface of the supporting plate are interspersed with clamping rods. The clamping rods correspond to and cooperate with the clamping holes. When the supporting plate is raised, the clamping rod is pulled upward to separate the clamping rod from the clamping hole. At this time, one corner of the supporting plate is pushed, and under the action of the convex shaft and the ring body, the supporting plate can be rotated around the convex shaft. When the supporting plate does not need to rotate, the supporting plate is aligned with the movable plate, and the clamping rod is inserted so that the clamping rod is inserted into the clamping hole to limit the supporting plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. In the present invention, when it is necessary to conduct simulation experiment teaching, the simulation experiment body can be completely lifted out of the box body, so as to conduct the installation teaching of the hydraulic drilling stress gauge through the provided hydraulic drilling stress gauge, and to be familiar with the on-site test method of the advance support pressure, understand the working principle of the hydraulic drilling stress gauge, and master the teaching of the on-site observation method of the hydraulic drilling stress gauge. After the teaching is completed, the simulation experiment body can be dropped back into the box body again through the electric cylinder to protect the simulation experiment body and prevent the simulation experiment body from being easily damaged;

[0012] 2. In the utility model, when teaching, the clamping rod can be pulled upward to separate the clamping rod from the clamping hole. Under the action of the convex shaft and the ring body, the supporting plate can be rotated around the convex shaft to change the position of the simulated experimental body so that the surrounding students can watch and learn, thereby preventing some students from missing the teaching process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the lifting of the supporting plate of the utility model.

[0016] Figure 3 This is a schematic diagram of the internal structure of the box of the utility model.

[0017] Figure 4 It is a schematic diagram of the cooperation between the supporting plate and the movable plate of the utility model.

[0018] In the figure: 1. box body; 2. box cover; 3. handle; 4. slide groove; 5. electric cylinder; 6. tooth plate; 7. slide rail; 8. gear; 9. connecting plate; 10. movable plate; 11. clamping hole; 12. convex shaft; 13. ring body; 14. supporting plate; 15. clamping rod; 16. simulated test body; 17. boss; 18. placement groove; 19. hydraulic drilling stress gauge. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-4 As shown, the utility model provides a virtual simulation experiment bench for observing the advance support pressure of a coal mining working face, comprising a box body 1, a movable plate 10 is arranged inside the box body 1, the top surface of the movable plate 10 is rotatably connected to a supporting plate 14, an electric cylinder 5 is arranged below the movable plate 10, the output shaft end of the electric cylinder 5 is fixedly connected to a toothed plate 6, the side wall of the toothed plate 6 is meshingly provided with a gear 8, a rotating shaft is inserted and fixedly connected to the middle of the side wall of the gear 8, a connecting plate 9 is sleeved on the side wall of the rotating shaft and on both sides of the gear 8, the end of the connecting plate 9 away from the gear 8 is fixedly connected to the bottom surface of the movable plate 10, a simulation test body 16 is fixedly connected to the top surface of the supporting plate 14 and a boss 17 is fixedly connected to the top surface of the supporting plate 14 and on one side of the simulation test body 16, a hydraulic drilling stress gauge 19 is placed on the top surface of the boss 17, a placement groove 18 is provided on the top surface of the boss 17, and the hydraulic drilling stress gauge 19 can be placed in the placement groove 18.

[0021] The side wall of the electric cylinder 5 is provided with a base, which is fixedly connected to the inner bottom wall of the box body 1, the bottom surface of the tooth plate 6 is fixedly connected to the slide rail 7, the inner bottom wall of the box body 1 is provided with a slide groove 4, the slide rail 7 is located in the slide groove 4, and the slide rail 7 is slidably connected to the slide groove 4, the side wall rotating sleeve of the rotating shaft is provided with a bearing seat, and the bottom surface of the bearing seat is fixedly connected to the inner bottom wall of the box body 1.

[0022] By adopting the above technical scheme, when it is necessary to conduct simulation experiment teaching, the box cover 2 is removed from the box body 1 through the handle 3, the electric cylinder 5 is started, and the tooth plate 6 moves under the action of the output shaft of the electric cylinder 5. The slide rail 7 and the slide groove 4 cooperate with each other, so that the tooth plate 6 can move more stably, and the tooth plate 6 and the gear 8 are engaged with each other, so that the connecting plate 9 can be moved, and then the movable plate 10 can drive the supporting plate 14 to rise until the bottom surface of the supporting plate 14 is flush with the top surface of the box body 1. At this time, the simulation experiment body 16 is completely lifted out of the box body 1 for demonstration teaching.

[0023] A box cover 2 is disposed on the top surface of the box body 1 , and a handle 3 is fixedly connected to a side of the box cover 2 facing away from the box body 1 .

[0024] By adopting the above technical solution, the box cover 2 can be removed from the box body 1 through the handle 3 to carry out simulation experiment teaching. When the teaching is completed, the simulated experimental body 16 can be dropped back into the box body 1 and the box cover 2 can be closed to protect the simulated experimental body 16 and prevent the simulated experimental body 16 from being easily damaged.

[0025] The movable plate 10 and the supporting plate 14 are both matched with the box opening of the box body 1 .

[0026] By adopting the above technical solution, the four walls of the movable plate 10 and the supporting plate 14 are in contact with the inner wall of the box body 1 , and the movable plate 10 and the supporting plate 14 can move up and down in a horizontal manner in the box body 1 .

[0027] A cam 12 is fixedly connected to the middle of the top surface of the movable plate 10, the cam 12 extends into the supporting plate 14, and the cam 12 is rotatably connected to the supporting plate 14. A ring body 13 is fixedly connected to the top surface of the movable plate 10, the cam 12 is located in the ring body 13, and the axis of the cam 12 coincides with the axis of the ring body 13. An annular groove is provided on the bottom surface of the supporting plate 14, and the ring body 13 is rotatably connected to the annular groove.

[0028] By adopting the above technical solution, when the supporting plate 14 is raised, the clamping rod 15 is pulled upward to separate the clamping rod 15 from the clamping hole 11. At this time, a corner of the supporting plate 14 is pushed, and under the action of the convex shaft 12 and the ring body 13, the supporting plate 14 can be rotated around the convex shaft 12 to change the position of the simulated experimental body 16 so that the surrounding students can watch and learn.

[0029] The four corners of the top surface of the movable plate 10 are all provided with clamping holes 11 , and the four corners of the top surface of the supporting plate 14 are all interspersed with clamping rods 15 , which correspond to and cooperate with the clamping holes 11 .

[0030] By adopting the above technical solution, when the supporting plate 14 is raised, the clamping rod 15 is pulled upward to separate the clamping rod 15 from the clamping hole 11. At this time, one corner of the supporting plate 14 is pushed, and under the action of the convex shaft 12 and the ring body 13, the supporting plate 14 can be rotated around the convex shaft 12. When the supporting plate 14 does not need to rotate, the supporting plate 14 is aligned with the movable plate 10, and the clamping rod 15 is inserted so that the clamping rod 15 is inserted into the clamping hole 11, so that the supporting plate 14 can be limited.

[0031] Working principle: When the utility model is in use, when it is necessary to conduct simulation experiment teaching, the box cover 2 is removed from the box body 1 through the handle 3, the electric cylinder 5 is started, and the tooth plate 6 moves under the action of the output shaft of the electric cylinder 5. The slide rail 7 and the slide groove 4 cooperate with each other, so that the tooth plate 6 can move more stably, and the tooth plate 6 and the gear 8 are meshed with each other, so that the connecting plate 9 can be moved, and then the movable plate 10 can drive the supporting plate 14 to rise until the bottom surface of the supporting plate 14 is flush with the top surface of the box body 1. At this time, the simulation experiment body 16 is completely lifted out of the box body 1, and the installation teaching of the hydraulic drilling stress gauge 19 can be carried out through the provided hydraulic drilling stress gauge 19, and the on-site testing method of the advance support pressure can be familiarized, the working principle of the hydraulic drilling stress gauge 19 can be understood, and the teaching of the on-site observation method of the hydraulic drilling stress gauge 19 can be mastered;

[0032] When the supporting plate 14 is raised, the clamping rod 15 is pulled upward to separate the clamping rod 15 from the clamping hole 11. At this time, a corner of the supporting plate 14 is pushed, and under the action of the convex shaft 12 and the ring body 13, the supporting plate 14 can be rotated around the convex shaft 12 to change the position of the simulated experimental body 16 so that the students around can watch and learn. When the supporting plate 14 does not need to rotate, the supporting plate 14 is aligned with the movable plate 10, and the clamping rod 15 is inserted so that the clamping rod 15 is inserted into the clamping hole 11, so that the supporting plate 14 can be limited.

[0033] After the teaching is completed, the simulated experimental body 16 can be dropped back into the box body 1 by the electric cylinder 5 and the box cover 2 can be closed, so that the simulated experimental body 16 can be protected and prevented from being easily damaged.

[0034] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A virtual simulation experiment platform for observing the advanced support pressure of a coal mining face, comprising a box (1), Features: A movable plate (10) is arranged inside the box body (1), and a support plate (14) is rotatably connected to the top surface of the movable plate (10). An electric cylinder (5) is arranged below the movable plate (10), and a toothed plate (6) is fixedly connected to the output shaft end of the electric cylinder (5). A gear (8) is meshedly arranged on the side wall of the toothed plate (6), and a rotating shaft is inserted and fixedly connected to the middle of the side wall of the gear (8). A connecting plate (9) is sleeved on the side wall of the rotating shaft and on both sides of the gear (8), and one end of the connecting plate (9) away from the gear (8) is fixedly connected to the bottom surface of the movable plate (10), and a simulated experimental body (16) is fixedly connected to the top surface of the support plate (14), and a boss (17) is fixedly connected to the top surface of the support plate (14) and on one side of the simulated experimental body (16), and a hydraulic drilling stress gauge (19) is placed on the top surface of the boss (17).

2. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining face according to claim 1, It is characterized in that The side wall of the electric cylinder (5) is provided with a base, and the base is fixedly connected to the inner bottom wall of the box body (1).

3. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining face according to claim 1, It is characterized in that The bottom surface of the tooth plate (6) is fixedly connected to a slide rail (7), the inner bottom wall of the box body (1) is provided with a slide groove (4), the slide rail (7) is located in the slide groove (4), and the slide rail (7) is slidably connected to the slide groove (4).

4. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining working face according to claim 1, It is characterized in that A bearing seat is rotatably sleeved on the side wall of the rotating shaft, and the bottom surface of the bearing seat is fixedly connected to the inner bottom wall of the box body (1).

5. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining working face according to claim 1, It is characterized in that The top surface of the box body (1) is provided with a box cover (2), and a handle (3) is fixedly connected to a surface of the box cover (2) facing away from the box body (1).

6. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining working face according to claim 1, It is characterized in that The movable plate (10) and the supporting plate (14) are both matched with the box opening of the box body (1).

7. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining face according to claim 1, It is characterized in that A convex shaft (12) is fixedly connected to the middle of the top surface of the movable plate (10), the convex shaft (12) extends into the supporting plate (14), and the convex shaft (12) is rotatably connected to the supporting plate (14); a ring body (13) is fixedly connected to the top surface of the movable plate (10), the convex shaft (12) is located in the ring body (13), and the axis of the convex shaft (12) coincides with the axis of the ring body (13); an annular groove is provided on the bottom surface of the supporting plate (14), and the ring body (13) is rotatably connected to the annular groove.

8. The virtual simulation experiment platform for observing the advanced support pressure of the coal mining face according to claim 1, It is characterized in that The four corners of the top surface of the movable plate (10) are provided with clamping holes (11), and the four corners of the top surface of the supporting plate (14) are interspersed with clamping rods (15), and the clamping rods (15) correspond to and match the clamping holes (11).

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