Mechanical property testing device for underground coal mine filling material

Abstract

The utility model discloses a coal mine underground filling material mechanical property testing device which comprises a performance testing device body, a supporting frame unit, an adjusting unit and a placing unit are arranged on the performance testing device body, the placing unit comprises a placing plate, and the supporting plate is arranged on the periphery of the placing plate. One side of the simulation filling material is provided with a coal mine as a supporting use scene, two adjacent supporting plates are installed on the placing plate, the two adjacent sides of the simulation filling material are provided with the coal mine as the supporting use scene, two symmetrical supporting plates are installed on the placing plate, and the two symmetrical sides of the simulation filling material are provided with the coal mine as the supporting use scene. The three supporting plates are installed on the placement plate, the use scene that the coal mine serves as a support is simulated on the three sides of the filling material, the different use scenes of the filling material under the coal mine are simulated, corresponding test data are obtained, and the accuracy of the test data is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical property testing technology for filling materials, specifically a device for testing the mechanical properties of filling materials in coal mines. Background Technology

[0002] Mechanical property testing of filling materials is a crucial step in evaluating their load-bearing capacity and stability in engineering applications. Measuring the ultimate load-bearing capacity of a material under vertical pressure is achieved through uniaxial compression tests, requiring the recording of the ratio of the maximum failure load to the original cross-sectional area. The compressive strength of coal mine filling materials directly affects their supporting effect. Currently, mechanical property testing of filling materials relies solely on vertical pressure tests, which cannot simulate the various filling methods used in coal mines. This leads to discrepancies between the test results and actual usage conditions. Therefore, we propose a mechanical property testing device for coal mine filling materials. Utility Model Content

[0003] The purpose of this invention is to provide a testing device for the mechanical properties of underground coal mine filling materials, so as to solve the problems mentioned in the background art.

[0004] A mechanical property testing device for underground coal mine filling materials includes a main body of the performance testing device, a support frame unit on the main body, an adjustment unit and a placement unit on the support frame unit, the placement unit for placing the filling material, and the adjustment unit for performing mechanical property testing on the filling material. The placement unit includes a placement plate, which is disposed on the support frame unit and located directly below the adjustment unit. The placement plate is used for placing the filling material, and mounting plates are provided around the placement plate for mounting the support plate.

[0005] Preferably, the support frame unit includes a column, which is fixedly mounted on the main body of the performance testing device. A lower sliding plate is slidably connected to the outer peripheral wall of the column, and the placement unit is mounted on the lower sliding plate. Preferably, an upper fixing plate is fixedly connected to the top end face of the column, and the adjustment unit is mounted on the upper fixing plate. Preferably, the adjustment unit includes a threaded rod and an adjustment handle. The adjustment handle is rotatably connected to the upper fixing plate, and the threaded rod is threadedly connected to the adjustment handle.

[0006] Preferably, an upper sliding plate is provided below the adjusting handle, the upper sliding plate is slidably connected to the outer peripheral wall of the column, and a pressure sensor is provided between the threaded rod and the upper sliding plate.

[0007] Preferably, a pressure plate is fixedly connected directly below the upper sliding plate, and the pressure plate is positioned directly above the placement plate.

[0008] Preferably, the support plate includes a first support plate and / or a second support plate and / or a third support plate mounted on a corresponding mounting plate.

[0009] Preferably, mounting grooves are formed on the inner walls of the first, second, and third support plates, which are used to mate the first, second, and third support plates with the mounting plate. By adopting the above technical solution, lateral support of the filling material is achieved, simulating various usage scenarios of the filling material and improving the effectiveness of its mechanical property testing.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the mechanical property testing device for underground coal mine filling materials,

[0011] The system includes a support frame unit, an adjustment unit, and a placement unit. The placement unit includes a placement plate. By installing a support plate around the placement plate, a scenario is simulated where one side of the filling material is supported by a coal mine. By installing two adjacent support plates on the placement plate, a scenario is simulated where the filling material is supported by coal mines on two adjacent sides. By installing two symmetrical support plates on the placement plate, a scenario is simulated where the filling material is supported by coal mines on two symmetrical sides. By installing three support plates on the placement plate, a scenario is simulated where the filling material is supported by coal mines on three sides. This simulation of different usage scenarios of the filling material in an underground coal mine allows for the acquisition of corresponding test data, thereby improving the accuracy of the test data. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the connection between the support frame unit and the adjustment unit of this utility model;

[0014] Figure 3 This is a schematic diagram of the placement unit structure of this utility model.

[0015] In the diagram: 1. Main body of the performance testing device; 2. Support frame unit; 21. Column; 22. Upper fixed plate; 23. Lower sliding plate; 3. Adjustment unit; 31. Threaded rod; 32. Adjustment handle; 33. Pressure sensor; 34. Upper sliding plate; 35. Pressure plate; 4. Placement unit; 41. Placement plate; 42. Mounting plate; 43. First support plate; 44. Second support plate; 45. Third support plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Please refer to... Figure 1-3 This utility model provides a technical solution: a mechanical performance testing device for underground coal mine filling materials, including a performance testing device body 1, a support frame unit 2 on the performance testing device body 1, an adjustment unit 3 and a placement unit 4 on the support frame unit 2, the placement unit 4 for placing filling materials, and the adjustment unit 3 for testing the mechanical performance of the filling materials.

[0017] The placement unit 4 includes a placement plate 41, which is disposed on the support frame unit 2. The placement plate 41 is located directly below the adjustment unit 3. The placement plate 41 is used for placing filling materials. Mounting plates 42 are provided around the placement plate 41. The mounting plates 42 are used to mount the support plate.

[0018] By installing a support plate around the placement plate 41, a scenario is simulated where one side of the filling material is supported by a coal mine. By installing two adjacent support plates on the placement plate 41, a scenario is simulated where the filling material is supported by coal mines on both adjacent sides. By installing two symmetrical support plates on the placement plate 41, a scenario is simulated where the filling material is supported by coal mines on both symmetrical sides. By installing three support plates on the placement plate 41, a scenario is simulated where the filling material is supported by coal mines on three sides. By simulating different usage scenarios of the filling material in a coal mine, corresponding test data can be obtained, thereby improving the accuracy of the test data.

[0019] The support frame unit 2 includes a column 21, which is fixedly mounted on the main body 1 of the performance testing device. A lower sliding plate 23 is slidably connected to the outer peripheral wall of the column 21, and the placement unit 4 is mounted on the lower sliding plate 23.

[0020] By adjusting the sliding plate 23 to slide on the column 21, the initial position of the placement unit 4 is adjusted so that the placement unit 4 is close to the adjustment unit 3, which facilitates the testing of the filling material.

[0021] An upper fixing plate 22 is fixedly connected to the top end face of the column 21, and the adjustment unit 3 is installed on the upper fixing plate 22. The adjustment unit 3 includes a threaded rod 31 and an adjustment handle 32. The adjustment handle 32 is rotatably connected to the upper fixing plate 22, and the threaded rod 31 is threadedly connected to the adjustment handle 32.

[0022] By rotating the adjustment handle 32, the threaded rod 31 is driven to rotate. Under the action of the threaded rod 31, the upper sliding plate 34 moves downward. The pressure sensor 33 installed at the bottom of the threaded rod 31 detects the test pressure. The pressure sensor 33 is a mature existing technology and will not be described in this application.

[0023] An upper sliding plate 34 is provided below the adjusting handle 32. The upper sliding plate 34 is slidably connected to the outer peripheral wall of the column 21. A pressure sensor 33 is provided between the threaded rod 31 and the upper sliding plate 34.

[0024] Pressure sensor 33 is used to detect pressure during the test process, making it easier for testers to record data.

[0025] A pressure plate 35 is fixedly connected directly below the upper sliding plate 34, and the pressure plate 35 is positioned directly above the placement plate 41. The pressure plate 35 moves in conjunction with the upper sliding plate 34, and the pressure plate 35 is controlled to perform pressure testing on the filling material. The support plate includes a first support plate 43 and / or a second support plate 44 and / or a third support plate 45 mounted on the corresponding mounting plate 42.

[0026] The inner walls of the first support plate 43, the second support plate 44, and the third support plate 45 are all provided with mounting grooves, which are used to cooperate with the first support plate 43, the second support plate 44, and the third support plate 45 to install with the mounting plate 42.

[0027] Optionally, a support plate is installed on the placement plate 41, that is, a first support plate 43, a second support plate 44 or a third support plate 45 is installed on one of the mounting plates 42, and the filling material is attached to the support plate. At this time, the pressure plate 35 is adjusted to move and squeeze the filling material through the adjustment unit 3 to simulate the use scenario where there is a coal mine as a support on one side of the filling material.

[0028] Optionally, two adjacent support plates are installed on the placement plate 41, namely, a first support plate 43 is installed on two adjacent mounting plates 42, and a second support plate 44 is installed on one of their adjacent sides. The filling material is then attached to the first support plate 43 and the second support plate 44. At this time, the pressure plate 35 is adjusted by the adjustment unit 3 to move and squeeze the filling material, simulating a usage scenario where there is a coal mine as support on both sides of the filling material. Optionally, two symmetrical support plates are installed on the placement plate 41, namely, a first support plate 43 is installed on two symmetrical mounting plates 42, and a third support plate 45 is installed on one of their symmetrical sides. The filling material is then attached to the first support plate 43 and the second support plate 44. The first support plate 43 and the third support plate 45 are attached together. At this time, the pressure plate 35 is adjusted by the adjustment unit 3 to move and squeeze the filling material, simulating the use scenario where the filling material is supported by coal mines on both sides. Optionally, three support plates are installed on the placement plate 41, that is, the first support plate 43, the second support plate 44 and the third support plate 45 are installed on one of the installation plates 42. The filling material is attached to the first support plate 43, the second support plate 44 and the third support plate 45. At this time, the pressure plate 35 is adjusted by the adjustment unit 3 to move and squeeze the filling material, simulating the use scenario where the filling material is supported by coal mines on three sides.

[0029] To achieve detection effects in multiple scenarios and improve the accuracy of its detection data.

Claims

1. A coal mine underground filling material mechanical property testing device, comprising a performance testing device main body (1), a support frame unit (2) is arranged on the performance testing device main body (1), characterized in that: The support frame unit (2) is provided with an adjustment unit (3) and a placement unit (4). The placement unit (4) is used to place filling material, and the adjustment unit (3) is used to test the mechanical properties of the filling material. The placement unit (4) includes a placement plate (41), which is set on the support frame unit (2). The placement plate (41) is located directly below the adjustment unit (3). The placement plate (41) is used to place the filling material. Mounting plates (42) are provided around the placement plate (41). The mounting plates (42) are used to mount the support plate.

2. The coal mine underground filling material mechanical property testing device according to claim 1, characterized in that: The support frame unit (2) includes a column (21), which is fixedly mounted on the main body (1) of the performance testing device. A lower sliding plate (23) is slidably connected to the outer peripheral wall of the column (21), and the placement unit (4) is mounted on the lower sliding plate (23).

3. The coal mine underground filling material mechanical property testing device according to claim 2, characterized in that: The top end face of the column (21) is fixedly connected to the upper fixing plate (22), and the adjustment unit (3) is installed on the upper fixing plate (22).

4. The coal mine underground filling material mechanical property testing device of claim 3, characterized in that: The adjustment unit (3) includes a threaded rod (31) and an adjustment handle (32). The adjustment handle (32) is rotatably connected to the upper fixed plate (22), and the threaded rod (31) is threadedly connected to the adjustment handle (32).

5. The coal mine underground filling material mechanical property testing device of claim 4, wherein: An upper sliding plate (34) is provided below the adjusting handle (32), and the upper sliding plate (34) is slidably connected to the outer peripheral wall of the column (21). A pressure sensor (33) is provided between the threaded rod (31) and the upper sliding plate (34).

6. The coal mine underground filling material mechanical property testing device according to claim 5, characterized in that: A pressure plate (35) is fixedly connected directly below the upper sliding plate (34), and the pressure plate (35) is directly above the placement plate (41).

7. The device for testing mechanical properties of a backfill material in a coal mine according to claim 1, characterized in that: The support plate includes a first support plate (43) and / or a second support plate (44) and / or a third support plate (45) mounted on a corresponding mounting plate (42).

8. The coal mine underground filling material mechanical property testing device of claim 7, characterized in that: The first support plate (43), the second support plate (44) and the third support plate (45) are all provided with mounting grooves on their inner walls. The mounting grooves are used to cooperate with the first support plate (43), the second support plate (44) and the third support plate (45) to install with the mounting plate (42).

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