Auxiliary device for testing pressure-bearing performance of filling material

Abstract

The utility model relates to a filling material pressure-bearing performance test auxiliary device which comprises a supporting frame, a hydraulic cylinder is arranged on the supporting frame, a lower pressing plate is arranged at the end of a piston rod of the hydraulic cylinder, a supporting table is arranged on the supporting frame, and a test cylinder barrel located below the hydraulic cylinder is arranged on the supporting table. A discharging through opening is formed in the middle of the bottom of the testing cylinder barrel, connecting grooves located in the inner walls of the two sides of the discharging through opening are formed in the testing cylinder barrel, and sealing plates inserted into the connecting grooves are movably arranged at the bottom of the testing cylinder barrel. A filling material is placed in the testing cylinder barrel, the hydraulic cylinder is started, the lower pressing plate moves downwards to test the pressure bearing performance of the filling material, after the test is completed, the sealing plate is taken out of the testing cylinder barrel, the filling material in the testing cylinder barrel falls off from the discharging through opening, the sealing plate is inserted into the connecting groove again, the discharging through opening is blocked, and then the filling material is tested. And the filling material after the test can be conveniently taken out for the next test work.

Description

Technical Field

[0001] This application relates to the technical field of pressure-bearing performance testing of filling materials, and in particular to an auxiliary device for testing the pressure-bearing performance of filling materials. Background Technology

[0002] Backfill mining is not only highly safe, but it also effectively reduces ore loss and dilution, and solves the problems of tailings disposal and pollution. It also helps prevent mine hazards such as ventilation leaks, heat damage, rock bursts, spontaneous combustion of ore, and coal and gas outbursts. Currently, it is widely used in various types of mines. Testing the mechanical properties of backfill materials helps to better understand their physical and mechanical properties, providing theoretical guidance for controlling rock strata movement and surface subsidence after backfill mining.

[0003] In the existing technology, the pressure resistance test of filling material is carried out by pressing the filling material in the cylinder with a hydraulic cylinder. After being pressed, the filling material is difficult to remove from the cylinder, which makes it inconvenient to remove the tested material and replace it with a new material to be tested, and also makes it inconvenient to carry out the next test. Summary of the Invention

[0004] To facilitate the removal of the filling material after testing, this application provides an auxiliary device for testing the pressure-bearing performance of filling materials.

[0005] This application provides an auxiliary device for testing the compressive strength of filling materials, which adopts the following technical solution:

[0006] An auxiliary device for testing the pressure-bearing performance of filling materials includes a support frame, a hydraulic cylinder mounted on the support frame, a lower pressure plate mounted on the piston rod end of the hydraulic cylinder, a support platform mounted on the support frame, a test cylinder mounted on the support platform below the hydraulic cylinder, a discharge port in the middle of the bottom of the test cylinder, connecting grooves on the inner walls of both sides of the discharge port, and a sealing plate movably mounted at the bottom of the test cylinder for insertion into the connecting groove.

[0007] By adopting the above technical solution, the filling material is placed in the test cylinder, the hydraulic cylinder is started, and the lower pressure plate moves downward to test the pressure resistance of the filling material. After the test is completed, the sealing plate is removed from the test cylinder, and the filling material in the test cylinder falls out of the discharge port. The sealing plate is then reinserted into the connecting groove to seal the discharge port, making it easy to remove the tested filling material for the next test.

[0008] Optionally, the test cylinder is provided with a limiting component for limiting the sealing plate. The limiting component includes a limiting block and a limiting spring. The inner wall of the connecting groove is provided with a placement groove. The side of the sealing plate is provided with a limiting groove that cooperates with the limiting block. One end of the limiting block is located in the placement groove. The limiting spring is located in the placement groove. When the limiting spring is in its natural state, the end of the limiting block away from the placement groove is located outside the placement groove. The end of the limiting block outside the placement groove is provided with an inclined surface on the side near the sealing plate.

[0009] By adopting the above technical solution, during the process of inserting the sealing plate into the connecting groove inside the test cylinder, the inclined surface contacts the sealing plate and applies pressure to the limiting block in the direction of the placement groove, pushing the limiting block into the placement groove, and the limiting spring is compressed. When the limiting groove coincides with the placement groove, the compressed spring is released, pushing the limiting block to move in the direction of the limiting groove. The limiting block is inserted into the limiting groove, limiting the sealing plate and improving the stability of the sealing plate in the test cylinder.

[0010] Optionally, the limiting component further includes a moving block and a rotating gear. The outer wall of the test cylinder is provided with a moving groove that communicates with the placement groove. The moving block is located in the placement groove. The moving block and the limiting block are each provided with a moving rack on one side close to each other. The rotating gear meshes with the moving racks on the moving block and the limiting block.

[0011] By adopting the above technical solution, the moving block is moved towards the moving groove, the rotating gear rotates, and the moving rack drives the limiting block to move towards the placement groove, so that the limiting block can be taken out from the limiting groove, making it convenient to take the sealing plate out from the test cylinder.

[0012] Optionally, a handle is provided at the end of the sealing plate away from the connecting groove.

[0013] By adopting the above technical solution, the sealing plate can be easily removed from the connecting groove using a handle.

[0014] Optionally, a support plate located below the sealing plate is movably disposed on the support platform.

[0015] By adopting the above technical solution, the bottom of the sealing plate is supported by a support plate, reducing the possibility of the sealing plate breaking.

[0016] Optionally, the support platform has a receiving groove in the middle, and a receiving box located below the material discharge port is placed in the receiving groove.

[0017] By adopting the above technical solution, the filling material that falls into the test steel drum is collected and received by the receiving box.

[0018] Optionally, the receiving groove of the support platform has inclined guide grooves on both sides of the groove wall facing downward toward the receiving box.

[0019] By adopting the above technical solution, the filling material falls along the wall of the guide trough into the receiving box.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] The filling material is placed inside the test cylinder. The hydraulic cylinder is activated, and the lower pressure plate moves downward to test the pressure resistance of the filling material. After the test is completed, the sealing plate is removed from the test cylinder, and the filling material inside the test cylinder falls out of the discharge port. The sealing plate is reinserted into the connecting groove to seal the discharge port, making it easier to remove the tested filling material for the next test.

[0022] During the process of inserting the sealing plate into the connecting groove inside the test cylinder, the inclined surface contacts the sealing plate and applies pressure to the limiting block in the direction of the placement groove, pushing the limiting block into the placement groove, and the limiting spring is compressed. When the limiting groove coincides with the placement groove, the compressed spring is released, pushing the limiting block to move in the direction of the limiting groove. The limiting block is inserted into the limiting groove, limiting the sealing plate and improving the stability of the sealing plate inside the test cylinder. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an auxiliary device for testing the pressure-bearing performance of filling materials.

[0024] Figure 2 This is a schematic diagram illustrating the structure of the limiting component in the embodiments of this application.

[0025] Figure 3 This is a schematic diagram used to illustrate the connection relationship between the support plate and the sealing plate in the embodiments of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Hydraulic cylinder; 21. Lower pressure plate; 3. Support platform; 31. Receiving groove; 32. Guide groove; 4. Test cylinder; 41. Placement groove; 42. Moving groove; 5. Sealing plate; 51. Handle; 52. Limiting groove; 6. Limiting assembly; 61. Limiting block; 611. Inclined surface; 62. Limiting spring; 63. Moving block; 64. Rotating gear; 65. Moving rack; 7. Support plate; 8. Receiving box. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses an auxiliary device for testing the pressure-bearing performance of filling materials.

[0029] Reference Figure 1An auxiliary device for testing the pressure-bearing performance of filling materials includes a support frame 1, a hydraulic cylinder 2 mounted on the support frame 1, a lower pressure plate 21 at the end of the piston rod of the hydraulic cylinder 2, a support platform 3 mounted on the support frame 1, and a test cylinder 4 located below the hydraulic cylinder 2 on the support platform 3. A discharge port is opened in the middle of the bottom of the test cylinder 4, and connecting grooves are opened on both sides of the inner wall of the discharge port. A sealing plate 5, which is inserted into the connecting groove, is movably mounted at the bottom of the test cylinder 4. Filling materials are placed inside the test cylinder 4, the hydraulic cylinder 2 is activated, and the lower pressure plate 21 moves downward to test the pressure-bearing performance of the filling materials. After the test is completed, the sealing plate 5 is removed from the test cylinder 4, and the filling materials inside the test cylinder 4 fall out of the discharge port. The sealing plate 5 is then reinserted into the connecting groove to seal the discharge port, facilitating the removal of the tested filling materials for the next test.

[0030] Reference Figure 1 A handle 51 is provided at the end of the sealing plate 5 away from the connecting groove. The handle 51 makes it easy to remove the sealing plate 5 from the connecting groove.

[0031] Reference Figure 2 The test cylinder 4 is equipped with a limiting component 6 for limiting the sealing plate 5. The limiting component 6 includes a limiting block 61 and a limiting spring 62. The inner wall of the connecting groove is provided with a placement groove 41. The side of the sealing plate 5 is provided with a limiting groove 52 that cooperates with the limiting block 61. One end of the limiting block 61 is located in the placement groove 41, and the limiting spring 62 is located in the placement groove 41. When the limiting spring 62 is in its natural state, one end of the limiting block 61 is away from the placement groove 41 and is located outside the placement groove 41. The side of the limiting block 61 located outside the placement groove 41 and close to the sealing plate 5 is provided with an inclined surface 611. During the process of inserting the sealing plate 5 into the connecting groove inside the test cylinder 4, the inclined surface 611 contacts the sealing plate 5 and applies pressure to the limiting block 61 in the direction close to the placement groove 41, pushing the limiting block 61 into the placement groove 41, and the limiting spring 62 is compressed. When the limiting groove 52 coincides with the placement groove 41, the compressed spring is released, pushing the limiting block 61 to move towards the limiting groove 52. The limiting block 61 is inserted into the limiting groove 52, limiting the sealing plate 5 and improving the stability of the sealing plate 5 inside the test cylinder 4.

[0032] Reference Figure 2The limiting component 6 also includes a moving block 63 and a rotating gear 64. The outer wall of the test cylinder 4 has a moving groove 42 communicating with the placement groove 41. The moving block 63 is located within the placement groove 41. Moving racks 65 are provided on both sides of the moving block 63 and the limiting block 61, which are close to each other. The rotating gear 64 meshes with the moving racks 65 on the moving block 63 and the limiting block 61. When the moving block 63 is moved towards the moving groove 42, the rotating gear 64 rotates, causing the limiting block 61 to move towards the placement groove 41 via the moving rack 65, allowing the limiting block 61 to be removed from the limiting groove 52, thus facilitating the removal of the sealing plate 5 from the test cylinder 4.

[0033] Reference Figure 3 A support plate 7 is movably mounted on the support platform 3, located below the sealing plate 5. The support plate 7 supports the bottom of the sealing plate 5, reducing the possibility of the sealing plate 5 breaking.

[0034] Reference Figure 3 The support platform 3 has a receiving groove 31 in the middle, and a receiving box 8 located below the material discharge port is placed in the receiving groove 31. The receiving box 8 is used to collect the filling material that falls into the test steel drum.

[0035] Reference Figure 3 The receiving groove 31 of the support platform 3 has inclined guide grooves 32 on both sides of the groove wall facing downward toward the receiving box 8. The filling material falls along the groove wall of the guide groove 32 into the receiving box 8.

[0036] The implementation principle of the auxiliary device for testing the pressure bearing performance of filling materials in this application embodiment is as follows: the filling material is placed in the test cylinder 4, the hydraulic cylinder 2 is started, and the lower pressure plate 21 moves downward to test the pressure bearing performance of the filling material. After the test is completed, the sealing plate 5 is removed from the test cylinder 4, and the filling material in the test cylinder 4 falls out from the discharge port. The sealing plate 5 is reinserted into the connecting groove to seal the discharge port, so that the tested filling material can be taken out for the next test.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary device for testing the pressure-bearing performance of filling materials, characterized in that: The device includes a support frame (1), on which a hydraulic cylinder (2) is mounted. A lower pressure plate (21) is mounted at the end of the piston rod of the hydraulic cylinder (2). A support platform (3) is mounted on the support frame (1). A test cylinder (4) is mounted on the support platform (3) and located below the hydraulic cylinder (2). A discharge port is opened in the middle of the bottom of the test cylinder (4). Connecting grooves are opened on the inner walls on both sides of the discharge port. A sealing plate (5) is movably mounted at the bottom of the test cylinder (4) and inserted into the connecting groove.

2. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 1, characterized in that: The test cylinder (4) is provided with a limiting component (6) for limiting the sealing plate (5). The limiting component (6) includes a limiting block (61) and a limiting spring (62). The inner wall of the connecting groove is provided with a placement groove (41). The side of the sealing plate (5) is provided with a limiting groove (52) that cooperates with the limiting block (61). One end of the limiting block (61) is located in the placement groove (41). The limiting spring (62) is located in the placement groove (41). When the limiting spring (62) is in its natural state, one end of the limiting block (61) away from the placement groove (41) is located outside the placement groove (41). The end of the limiting block (61) outside the placement groove (41) is provided with an inclined surface (611) on the side of the sealing plate (5).

3. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 2, characterized in that: The limiting component (6) also includes a moving block (63) and a rotating gear (64). The outer wall of the test cylinder (4) is provided with a moving groove (42) that communicates with the placement groove (41). The moving block (63) is located in the placement groove (41). The moving block (63) and the limiting block (61) are provided with moving racks (65) on one side close to each other. The rotating gear (64) meshes with the moving racks (65) on the moving block (63) and the limiting block (61).

4. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 1, characterized in that: A handle (51) is provided at the end of the sealing plate (5) away from the connecting groove.

5. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 1, characterized in that: A support plate (7) located below the sealing plate (5) is movably disposed on the support platform (3).

6. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 1, characterized in that: The support platform (3) has a receiving groove (31) in the middle, and a receiving box (8) located below the material discharge port is placed in the receiving groove (31).

7. The auxiliary device for testing the pressure-bearing performance of filling materials according to claim 5, characterized in that: The receiving groove (31) of the support platform (3) has inclined guide grooves (32) on both sides of the groove wall facing downward toward the receiving box (8).

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