Borehole charging device

Abstract

The utility model discloses blasthole charging device relates to mine blasting technical field, including base and arc clamping block, the upper surface fixedly connected with fixed block of base is equipped with the recess and rotates and is connected with the threaded rod of one side outer wall, the outer wall threaded connection of threaded rod has the nut, the outer wall fixedly connected with the sliding block of nut, the lower surface of sliding block is penetrated and is equipped with the rotary groove, the inner wall of rotary groove is rotatably connected with the two -way screw rod through bearing, the lower surface of two -way screw rod is symmetrically threaded connection with screw rod nut, the outer wall fixedly connected with support block of screw rod nut, arc clamping block is equipped below support block, can realize to the stable clamping of different diameter's cartridge, through the auxiliary fixing of clamping block, avoid cartridge deformation or drop, and first drive motor and second drive motor control cartridge's push and clamping respectively, reduce the frequency of manual direct contact cartridge and blasthole, reduce the safety risk in the blasting operation.

Description

Technical Field

[0001] This utility model relates to the field of mining blasting technology, specifically to a blast hole charging device. Background Technology

[0002] In engineering fields such as mining, tunnel construction, and building demolition, blast hole charging is a key step in blasting operations. The amount of explosives used in blast hole charging refers to the design of underground mining engineering where explosives are used to break up ore and rocks from below the surface.

[0003] The method of loading explosives into blast holes mainly relies on manual operation. Operators hold explosive cartridges, such as emulsion explosives or ammonium nitrate explosives, and use simple tools such as bamboo poles or iron rods to push the cartridges into the blast hole section by section. When loading explosives manually, operators need to be in close contact with the explosives and the blast hole. If there are residual gases, dust or accidental detonation sources in the blast hole, it is easy to cause safety accidents. At the same time, during the manual pushing process, the friction and compression of the explosive cartridges may cause excessive local stress, which poses a risk of premature detonation. Therefore, it is necessary to propose a blast hole loading device. Utility Model Content

[0004] The purpose of this invention is to provide a borehole charging device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a blast hole charging device, comprising a base and an arc-shaped clamping block, wherein a fixing block is fixedly connected to the upper surface of the base;

[0006] One outer wall of the fixing block has a groove and is rotatably connected to a threaded rod. The outer wall of the threaded rod is threaded with a nut. The outer wall of the nut is fixedly connected to a slider. The lower surface of the slider has a through-hole rotating groove. The inner wall of the rotating groove is rotatably connected to a bidirectional lead screw via a bearing. The lower surface of the bidirectional lead screw is symmetrically threaded with a lead screw nut. The outer wall of the lead screw nut is fixedly connected to a support block. Below the support block is an arc-shaped clamping block. The interior of each arc-shaped clamping block has a through-hole. The inner wall of each cavity is slidably connected to a clamping block. The upper surface of the clamping block has a through-hole wedge-shaped groove. The support block extends into the cavity and is fixedly connected to a wedge-shaped push block. The wedge-shaped push block matches the wedge-shaped groove. The clamping block extends beyond the arc-shaped clamping block.

[0007] Preferably, a limiting cavity is formed through one end of the support block located in the cavity, a limiting block is slidably connected to the inner wall of the limiting cavity, a limiting hole is formed through one end of the inner wall of the cavity, the limiting block passes through the limiting hole, a first spring is fixedly connected to the inner wall of the limiting cavity, and the other end of the first spring is fixedly connected to the limiting block.

[0008] Preferably, a first drive motor is fixedly connected to the upper surface of the base, and the output end of the first drive motor is fixedly connected to a threaded rod via a coupling.

[0009] Preferably, a second drive motor is fixedly connected to one side of the outer wall of the slider, and the output end of the second drive motor is fixedly connected to a bidirectional lead screw through a coupling.

[0010] Preferably, a second spring is fixedly connected to the inner wall of one end of the cavity, and the other end of the second spring is fixedly connected to the clamping block.

[0011] Preferably, drive wheels are fixedly connected to the four corners of the base, and a handle is provided on one side of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the explosive roll is placed in the middle of the arc-shaped clamping block, the second drive motor is started to drive the bidirectional lead screw to rotate, so that the arc-shaped clamping block clamps and fixes the explosive roll. The first drive motor is started to push the explosive roll and the arc-shaped clamping block into the blast hole. The wedge-shaped pusher pushes the clamping block to move into the arc-shaped clamping block, and the explosive roll slides out from the arc-shaped clamping block. It can stably clamp explosive rolls of different diameters. With the auxiliary fixation of the clamping block, the explosive roll is prevented from deforming or falling off. The first drive motor and the second drive motor control the pushing and clamping of the explosive roll respectively, reducing the frequency of direct manual contact with the explosive roll and the blast hole, and reducing the safety risks in blasting operations. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model;

[0014] Figure 2 This is a cross-sectional view of the support block of this utility model;

[0015] Figure 3 This is a front view schematic diagram of the arc-shaped clamping block of this utility model;

[0016] Figure 4 This is a cross-sectional view of the arc-shaped clamping block of this utility model;

[0017] Figure 5 This is a schematic diagram of the installation position structure of the wedge-shaped pusher block of this utility model;

[0018] Figure 6 This is a schematic diagram of the wedge-shaped pusher moving structure of this utility model.

[0019] In the diagram: 1. Base; 2. Arc-shaped clamping block; 3. Fixing block; 4. Threaded rod; 5. Slider; 6. Two-way lead screw; 7. Support block; 8. Clamping block; 10. Wedge-shaped push block; 11. Limiting block; 12. First spring; 13. First drive motor; 14. Second drive motor; 15. Second spring; 16. Drive wheel. Detailed Implementation

[0020] Please see Figure 1-6 This utility model provides a technical solution:

[0021] Example 1: A blast hole charging device, including a base 1 and an arc-shaped clamping block 2, with a fixing block 3 fixedly connected to the upper surface of the base 1;

[0022] A groove is provided on one side of the outer wall of the fixed block 3, and a threaded rod 4 is rotatably connected thereto. A nut is threadedly connected to the outer wall of the threaded rod 4, and a slider 5 is fixedly connected to the outer wall of the nut. A rotating groove is provided through the lower surface of the slider 5, and a double-acting screw 6 is rotatably connected to the inner wall of the rotating groove via a bearing. A screw nut is symmetrically threaded to the lower surface of the double-acting screw 6, and a support block 7 is fixedly connected to the outer wall of the screw nut. An arc-shaped clamping block 2 is provided below the support block 7, and a cavity is provided through the interior of each arc-shaped clamping block 2. A clamping block 8 is slidably connected to the inner wall of the cavity, and a wedge-shaped groove is provided through the upper surface of the clamping block 8. The support block 7 extends into the cavity and is fixedly connected to a wedge-shaped push block. 10. The wedge-shaped push block 10 matches the wedge-shaped groove. The clamping block 8 extends through the arc-shaped clamping block 2. The end of the support block 7 located outside the slider 5 is arc-shaped. The first drive motor 13 and the second drive motor 14 are explosion-proof motors with dust covers on the outside. The clamping end of the clamping block 8 is equipped with a wear-resistant rubber pad. The threaded rod 4, the double-acting screw 6 and other metal parts are made of non-sparking materials such as brass or stainless steel to avoid sparks from metal friction. The drive wheel 16 is an industrial universal wheel with brake pads. After being pushed into place, the wheel can be locked by stepping on the brake pads. One end of the cavity is equipped with a blocking groove. One end of the wedge-shaped push block 10 extends into the blocking groove to prevent the support block 7 from moving excessively.

[0023] In use, both the first drive motor 13 and the second drive motor 14 are connected to an external drive source via a controller. The device is moved to the vicinity of the blast hole to be loaded via the drive wheels 16 at the four corners of the base 1. The position of the device is adjusted using the handle on one side of the base 1 so that the arc-shaped clamping block 2 is aligned with the axis of the blast hole. The explosive roll to be loaded into the blast hole is placed between the two arc-shaped clamping blocks 2. The second drive motor 14 is started, which drives the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 drives the support block 7 to move inward through the lead screw nut. The support block 7 drives the arc-shaped clamping block 2 to clamp the explosive roll. The clamping block 8 prevents the explosive roll from falling off the arc. The arc-shaped clamping block 2 slides out, and the first drive motor 13 is started to drive the threaded rod 4 to rotate. The threaded rod 4 drives the slider 5 to move downward through the nut. The slider 5 drives the arc-shaped clamping block 2 and the support block 7 to move downward into the borehole until the arc-shaped clamping block 2 abuts against the inner wall of the borehole. The support block 7 moves within the arc-shaped clamping block 2 until the wedge-shaped push block 10 at the lower end of the support block 7 is inserted into the wedge-shaped groove. The wedge-shaped push block 10 pushes the clamping block 8 to move into the arc-shaped clamping block 2 and compresses the second spring 15, releasing the clamping of the explosive roll. At this time, the first spring 12 pushes the limiting block 11 to move into the limiting hole, limiting and fixing the support block 7. Figure 6 As shown, the first drive motor 13 is started to drive the threaded rod 4 to rotate in the opposite direction. The threaded rod 4 drives the slider 5 and the arc-shaped clamp 2 to move upward and move out of the borehole. At this time, the explosive roll slides out from the arc-shaped clamp 2 and remains in the borehole, completing the loading operation. When loading is repeated, the arc-shaped clamp 2 is slid downward to separate the wedge-shaped push block 10 from the clamping block 8. The second spring 15 pushes the clamping block 8 to move outside the arc-shaped clamp 2.

[0024] Example 2: The technical solutions in this example that differ from Example 1 include;

[0025] A limiting cavity is formed through one end of the support block 7 located within the cavity. A limiting hole is formed through one end of the inner wall of the limiting cavity, and the limiting block 11 passes through the limiting hole. A first spring 12 is fixedly connected to the inner wall of the limiting cavity, and the other end of the first spring 12 is fixedly connected to the limiting block 11, so that the first spring 12 can be used to push the limiting block 11 into the limiting hole to limit and fix the clamping block 8. A first drive motor 13 is fixedly connected to the upper surface of the base 1. The output end of the first drive motor 13 is fixedly connected to the threaded rod 4 through a coupling, so that the first drive motor 13 can be used to limit and fix the clamping block 8. Motor 13 drives threaded rod 4 to rotate. A second drive motor 14 is fixedly connected to the outer wall of one side of slider 5. The output end of the second drive motor 14 is fixedly connected to the bidirectional lead screw 6 through a coupling, so that the second drive motor 14 can drive the bidirectional lead screw 6 to rotate. A second spring 15 is fixedly connected to the inner wall of one end of the cavity. The other end of the second spring 15 is fixedly connected to the clamping block 8, so that the second spring 15 can push the clamping block 8 to reset. Drive wheels 16 are fixedly connected to the four corners of the base 1. A handle is provided on one side of the base 1, so that the device can be pushed with the handle and moved by the drive wheels 16.

Claims

1. A blast hole charging device, comprising a base (1) and an arc-shaped clamp (2), wherein a fixing block (3) is fixedly connected to the upper surface of the base (1); Its features are, The outer wall of the fixed block (3) has a groove and is rotatably connected to a threaded rod (4). The outer wall of the threaded rod (4) is threaded with a nut. The outer wall of the nut is fixedly connected to a slider (5). The lower surface of the slider (5) is provided with a rotating groove. The inner wall of the rotating groove is rotatably connected to a bidirectional lead screw (6) through a bearing. The lower surface of the bidirectional lead screw (6) is symmetrically threaded with a lead screw nut. The outer wall of the lead screw nut is fixedly connected to a support block (7). The support block (7) is provided with an arc-shaped clamping block (2) below it. The arc-shaped clamping block (2) is provided with a cavity. The inner wall of the cavity is slidably connected to a clamping block (8). The upper surface of the clamping block (8) is provided with a wedge-shaped groove. The support block (7) extends into the cavity and is fixedly connected to a wedge-shaped push block (10). The wedge-shaped push block (10) matches the wedge-shaped groove. The clamping block (8) extends out of the arc-shaped clamping block (2).

2. The borehole charging device according to claim 1, characterized in that: The support block (7) has a limiting cavity through one end located in the cavity. The inner wall of the limiting cavity is slidably connected to a limiting block (11). A limiting hole is through one end of the inner wall of the cavity. The limiting block (11) passes through the limiting hole. A first spring (12) is fixedly connected to the inner wall of the limiting cavity. The other end of the first spring (12) is fixedly connected to the limiting block (11).

3. The borehole charging device according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a first drive motor (13), and the output end of the first drive motor (13) is fixedly connected to the threaded rod (4) through a coupling.

4. The borehole charging device according to claim 1, characterized in that: A second drive motor (14) is fixedly connected to one side of the outer wall of the slider (5), and the output end of the second drive motor (14) is fixedly connected to the bidirectional lead screw (6) through a coupling.

5. The borehole charging device according to claim 1, characterized in that: A second spring (15) is fixedly connected to the inner wall of one end of the cavity, and the other end of the second spring (15) is fixedly connected to the clamping block (8).

6. The borehole charging device according to claim 1, characterized in that: The base (1) is fixedly connected to four corners of each of the four corners of the base (1), and a handle is provided on one side of the base (1).

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