Blast hole uniform filling device

Abstract

The utility model discloses a blasthole filling uniform device, relates to the technical field of blasthole filling, and aims to solve the problem that the energy release effect during blasting is affected by non-uniform contact between explosives and materials due to local accumulation or non-uniform distribution of the materials in the pushing process of a spiral drill rod. A conveying assembly is fixed to the center of the top of the bottom plate, a stirring assembly is fixed to the center of the top of the conveying assembly, and a discharging pipe is fixed to one end of the conveying assembly. The first motor drives the second gear and the material distribution disc to rotate, the material distribution disc rotates to drive the telescopic shaft to rotate, and the telescopic shaft drives the material distribution disc and the fixed rod to rotate, so that filling materials are uniformly distributed in blast holes in all directions in the rotating process of the material distribution disc.

Description

Technical Field

[0001] This utility model relates to the field of borehole filling technology, and in particular to a device for uniformly filling boreholes. Background Technology

[0002] In numerous fields such as mining, foundation construction, and military engineering, borehole blasting is a crucial operational method. Whether it's rock extraction and fracturing or soil loosening and excavation, it all depends on the proper placement and precise detonation of explosives and other blasting materials within the borehole. In actual operation, the filling condition within the borehole has a significant impact on the blasting effect.

[0003] Existing blast hole filling devices utilize auger rods to push materials. However, these devices still have some problems. During the pushing process, the auger rod may cause local accumulation or uneven distribution of materials, resulting in uneven contact between the explosive and the materials. This affects the energy release effect during blasting, leading to unsatisfactory fragmentation results, or even insufficient or excessive blasting in some areas, increasing the difficulty and cost of subsequent excavation and cleanup work. Utility Model Content

[0004] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of the present invention is to provide a device for uniformly filling boreholes, thereby achieving a uniform distribution of filling material within the borehole.

[0005] The hole filling uniform device proposed by this utility model includes a base plate, a conveying component fixed at the top center of the base plate, a stirring component fixed at the top center of the conveying component, and a feeding pipe fixed at one end of the conveying component.

[0006] A rotating shaft is inserted into the top of the feeding tube and rotatably connected thereto. A telescopic shaft is slidably connected inside the rotating shaft. A U-shaped plate is threadedly connected to the top of the feeding tube. An electric telescopic rod is fixed to the top of the U-shaped plate, and the telescopic end of the electric telescopic rod is rotatably connected to the top of the telescopic shaft. A first gear is fixed to the top outer surface of the rotating shaft. A first motor is threadedly connected inside the U-shaped plate. A second gear that meshes with the first gear is fixed to the rotating end of the first motor. A fabric disc is fixed to the bottom center of the telescopic shaft. Guide grooves are provided on both the left and right inner walls of the rotating shaft. Guide rods that slidably engage with the guide grooves are fixed to both the left and right ends of the telescopic shaft.

[0007] Preferably, the top of the fabric tray is fixed with several fixing rods in a circular array.

[0008] Preferably, the conveying assembly includes a conveying pipe, a third motor is fixed to one end of the conveying pipe away from the feeding pipe, an auger blade is rotatably connected inside the conveying pipe, and one end of the auger blade is fixed to the rotating end of the third motor.

[0009] Preferably, the stirring assembly includes a stirring drum, a support plate is fixed to the top of the stirring drum, a second motor is fixed to the center of the top of the support plate, a central shaft is fixed to the rotating end of the second motor, and several stirring rods are fixed to the outer surface of the central shaft.

[0010] Preferably, cylinders are fixed at all four corners of the base plate, and the telescopic ends of the cylinders pass through the base plate and are fixed with support plates, which can automatically adjust the position of the feed pipe according to the depth of the borehole.

[0011] Preferably, the bottom of the mixing drum is provided with a discharge valve, through which the uniformly mixed material is injected into the conveying pipe.

[0012] The beneficial effects of this utility model are:

[0013] 1. The first motor drives the second gear and the material distribution disc to rotate, and the rotation of the material distribution disc drives the telescopic shaft to rotate, which in turn drives the material distribution disc and the fixed rod to rotate. Thus, during the rotation of the material distribution disc, the material is evenly distributed in all directions within the borehole, achieving uniform distribution of the filling material within the borehole.

[0014] 2. At the same time, the telescopic shaft moves up and down via the electric telescopic rod, and the up and down movement of the telescopic shaft moves the material distribution disc. By controlling the distance between the material distribution disc and the feeding pipe, the diameter of the material spill can be controlled, making the material filling more uniform. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the borehole filling uniform device proposed in this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the borehole filling uniform device proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal exploded structure of the feed pipe of the uniform filling device for boreholes proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the top structure of the feed pipe of the uniform filling device for boreholes proposed in this utility model.

[0019] Figure 5 This is a schematic diagram of the rotating shaft structure of the borehole filling uniform device proposed in this utility model.

[0020] In the diagram: 1. Base plate; 2. Conveying assembly; 3. Mixing assembly; 4. Discharge pipe; 5. Rotating shaft; 6. Telescopic shaft; 7. U-shaped plate; 8. Electric telescopic rod; 9. First gear; 10. First motor; 11. Second gear; 12. Distributing disc; 13. Fixing rod; 14. Guide groove; 15. Guide rod; 16. Mixing drum; 17. Support plate; 18. Second motor; 19. Central shaft; 20. Mixing rod; 21. Conveying pipe; 22. Third motor; 23. Screwdriver blades; 24. Discharge valve; 25. Cylinder; 26. Support disc. Detailed Implementation

[0021] Reference Figure 1-5 The blast hole filling uniform device includes a base plate 1, a conveying component 2 fixed at the top center of the base plate 1, a mixing component 3 fixed at the top center of the conveying component 2, and a discharge pipe 4 fixed at one end of the conveying component 2. The sand and stone chips introduced are mixed by the mixing component 3, and the mixed material is conveyed to the discharge pipe 4 through the conveying component 2. The material is conveyed to the inside of the blast hole by gravity and the discharge pipe 4.

[0022] A rotating shaft 5 is inserted into the top of the feeding pipe 4 and is rotatably connected to it. A telescopic shaft 6 is slidably connected inside the rotating shaft 5. A U-shaped plate 7 is threadedly connected to the top of the feeding pipe 4. An electric telescopic rod 8 is fixed to the top of the U-shaped plate 7, and the telescopic end of the electric telescopic rod 8 is rotatably connected to the top of the telescopic shaft 6. A first gear 9 is fixed to the outer surface of the top of the rotating shaft 5. A first motor 10 is threadedly connected inside the U-shaped plate 7. A second gear 11 that meshes with the first gear 9 is fixed to the rotating end of the first motor 10. A fabric disc 12 is fixed to the center of the bottom of the telescopic shaft 6. Guide grooves 14 are opened on the left and right inner walls of the rotating shaft 5. Both ends of the telescopic shaft 6 are fixed with guide grooves slidably engaged with the guide grooves 14. Guide rod 15; by starting the first motor 10, the second gear 11 is driven to rotate, and the rotation of the second gear 11 drives the first gear 9 meshing with it to rotate, and the rotation of the first gear 9 drives the rotating shaft 5 and the telescopic shaft 6 to rotate, and the rotation of the telescopic shaft 6 drives the material distribution disc 12 to rotate, and during the rotation of the material distribution disc 12, it is evenly sprinkled in all directions in the borehole to avoid the material from accumulating in a certain area; at the same time, the electric telescopic rod 8 drives the telescopic shaft 6 to move up and down, and the up and down movement of the telescopic shaft 6 drives the material distribution disc 12 to move. By controlling the distance between the material distribution disc 12 and the discharge pipe 4, the diameter of the material sprinkled can be controlled, so that the material is filled more evenly.

[0023] When the material distribution disc 12 is far from the outlet of the discharge pipe 4, the material needs to travel a longer distance after exiting the discharge pipe 4 before falling onto the disc. During this process, the material will fall under the influence of gravity, and its falling speed will increase, resulting in a larger distribution area of ​​the material on the material distribution disc 12. Because the material is distributed over a larger area on the material distribution disc 12, the distance the material is thrown out in the air will also be farther, thus making the diameter of the material drop larger. If the material distribution disc 12 is close to the outlet of the discharge pipe 4, the speed at which the material falls onto the material distribution disc 12 is smaller, the distribution area is relatively smaller, the distance the material is thrown out is shorter, and the diameter of the drop will be correspondingly smaller.

[0024] The top of the material distribution disc 12 is fixed with several fixed rods 13 in a circular array. The fixed rods 13 can change the movement trajectory and distribution of the material on the material distribution disc 12, so that the material is distributed more evenly on the disc, and thus is more evenly sprinkled in all directions during the rotation process, improving the uniformity of the sprinkler.

[0025] The conveying assembly 2 includes a conveying pipe 21. A third motor 22 is fixed to one end of the conveying pipe 21 away from the discharge pipe 4. An auger blade 23 is rotatably connected inside the conveying pipe 21, and one end of the auger blade 23 is fixed to the rotating end of the third motor 22. The second motor 18 drives the central shaft 19 to rotate, and the central shaft 19 drives the stirring rod 20 to rotate and stir inside the stirring drum 16, so as to fully stir the added material. After stirring for a period of time, the evenly stirred material can be injected into the conveying pipe 21 through the discharge valve 24. At this time, the material can be evenly mixed. It is very convenient to use and highly practical.

[0026] The mixing assembly 3 includes a mixing drum 16, a support plate 17 fixed to the top of the mixing drum 16, a second motor 18 fixed to the center of the top of the support plate 17, a central shaft 19 fixed to the rotating end of the second motor 18, and several mixing rods 20 fixed to the outer surface of the central shaft 19; the third motor 22 is started, and the auger blades 23 are driven to rotate through the third motor 22. The rotation of the auger blades 23 will cause the material inside the conveying pipe 21 to be transported to the downward material pipe 4.

[0027] Cylinders 25 are fixed at the four corners of the base plate 1. The telescopic end of the cylinder 25 passes through the base plate 1 and is fixed with a support plate 26. It can automatically adjust the position of the feed pipe 4 according to the depth of the borehole, so as to ensure that the material can be evenly filled at all depths from the bottom to the top of the borehole, and adapt to the filling requirements of boreholes of different specifications.

[0028] The bottom of the mixing drum 16 is provided with a discharge valve 24, which is an existing electric butterfly valve that is compatible with the device.

[0029] When using this device, place it in a suitable position so that the feed pipe 4 is aligned with the borehole, and adjust the feed pipe 4 to the appropriate position using the cylinder 25. Then, pour the material to be mixed into the mixing drum 16. Start the second motor 18 to drive the central shaft 19 and the mixing rod 20 to mix the material. After mixing for a period of time, the evenly mixed material can be injected into the conveying pipe 21 through the discharge valve 24. Then, start the third motor 22, which drives the auger blades 23 to rotate. The rotation of the auger blades 23 will transport the material inside the conveying pipe 21 to the feed pipe 4. Simultaneously, start the first motor... Machine 10 drives the second gear 11 to rotate, and the rotation of the second gear 11 drives the first gear 9 meshing with it to rotate. The rotation of the first gear 9 drives the rotating shaft 5 and the telescopic shaft 6 to rotate. The rotation of the telescopic shaft 6 drives the material distribution disc 12 to rotate. During the rotation of the material distribution disc 12, the material is evenly distributed in all directions within the borehole, preventing the material from accumulating in a certain area. At the same time, the electric telescopic rod 8 drives the telescopic shaft 6 to move up and down, and the up and down movement of the telescopic shaft 6 drives the material distribution disc 12 to move. By controlling the distance between the material distribution disc 12 and the discharge pipe 4, the diameter of the material distribution can be controlled, making the material filling more uniform.

Claims

1. A device for uniformly filling boreholes, characterized in that: Includes a base plate (1), a conveying assembly (2) is fixed at the top center of the base plate (1), a stirring assembly (3) is fixed at the top center of the conveying assembly (2), and a discharge pipe (4) is fixed at one end of the conveying assembly (2). The top of the feeding pipe (4) is inserted with a rotating shaft (5) that is rotatably connected to it. The inside of the rotating shaft (5) is slidably connected to a telescopic shaft (6). The top of the feeding pipe (4) is threadedly connected to a U-shaped plate (7). The top of the U-shaped plate (7) is fixed with an electric telescopic rod (8). The telescopic end of the electric telescopic rod (8) is rotatably connected to the top of the telescopic shaft (6). The top outer surface of the rotating shaft (5) is fixed with a first gear (9). The inside of the U-shaped plate (7) is threadedly connected to a first motor (10). The rotating end of the first motor (10) is fixed with a second gear (11) that meshes with the first gear (9). The bottom center of the telescopic shaft (6) is fixed with a fabric disc (12). The left and right inner walls of the rotating shaft (5) are provided with guide grooves (14). The left and right ends of the telescopic shaft (6) are fixed with guide rods (15) that slide with the guide grooves (14).

2. The borehole filling uniform device according to claim 1, characterized in that: The top of the fabric tray (12) is fixed with several fixing rods (13) in a circular array.

3. The borehole filling uniform device according to claim 1, characterized in that: The conveying assembly (2) includes a conveying pipe (21), a third motor (22) is fixed at one end of the conveying pipe (21) away from the feeding pipe (4), and an auger blade (23) is rotatably connected inside the conveying pipe (21), and one end of the auger blade (23) is fixed to the rotating end of the third motor (22).

4. The borehole filling uniform device according to claim 1, characterized in that: The stirring assembly (3) includes a stirring cylinder (16), a support plate (17) is fixed on the top of the stirring cylinder (16), a second motor (18) is fixed at the center of the top of the support plate (17), a central shaft (19) is fixed at the rotating end of the second motor (18), and several stirring rods (20) are fixed on the outer surface of the central shaft (19).

5. The borehole filling uniform device according to claim 1, characterized in that: Cylinders (25) are fixed at the four corners of the base plate (1), and the telescopic end of the cylinder (25) passes through the base plate (1) and is fixed with a support plate (26).

6. The borehole filling uniform device according to claim 4, characterized in that: The bottom of the mixing drum (16) is provided with a discharge valve (24).

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