Energy-gathering blasting tube structure with controllable energy-gathering groove direction and charging structure

Abstract

The invention discloses an energy-gathered blasting tube structure with controllable energy-gathered groove direction and a charging structure, an energy-gathered blasting tube is enclosed by an upper arc tube, a lower arc tube and two movable arc tubes, the upper arc tube and the lower arc tube are connected by a support rib plate, and the energy-gathered grooves of the movable arc tubes are located in movable gaps at corresponding positions. The outer diameter of the movable arc tube is matched with the inner diameter of the upper arc tube and the inner diameter of the lower arc tube, the outer wall of one end of the movable arc tube is in contact with the inner wall of the upper arc tube, and the outer wall of the other end of the movable arc tube is in contact with the inner wall of the lower arc tube, so that the movable arc tube has the characteristic of moving clockwise or anticlockwise, and the direction of the energy gathering groove on the movable arc tube can be correspondingly changed. The position of the movable arc tube is adjusted or fixed by the positioning component, so that the energy-gathered blasting tube structure with the controllable direction of the energy-gathered groove is provided, and the problems that the direction of the energy-gathered groove of a traditional energy-gathered tube is fixed, when the energy-gathered jet flow direction needs to be adjusted, the adjustment is difficult, and obvious limitation is exposed are solved.

Description

Technical Field

[0001] This invention belongs to the field of shaped charge tubes, and particularly relates to a shaped charge tube structure and charging structure with controllable shaped charge groove direction. Background Technology

[0002] In the field of engineering blasting, all blasting operations, including underground mining and open-pit blasting, utilize the explosive mechanism to maximize the energy efficiency of explosives. Therefore, to further enhance energy efficiency, various shaped charge methods are employed during blasting operations. Traditional shaped charge tubes are widely used, with their V-shaped shaped charge groove determining the direction of the shaped charge jet. The direction of the shaped charge groove in traditional shaped charge tubes is fixed before insertion into the borehole. Furthermore, after insertion, the alignment of the shaped charge tube with the borehole wall makes it difficult to adjust the direction of the shaped charge groove (the tube must be removed and readjusted). Therefore, traditional shaped charge tubes face difficulties in adjusting the direction of the shaped charge jet when dealing with complex rock formations or special blasting profiles, revealing significant limitations and greatly restricting their application range. Summary of the Invention

[0003] The purpose of this invention is to address the problem that traditional shaped charge tubes have a fixed shaped charge groove direction, which makes it difficult to adjust the shaped charge jet direction and exposes obvious limitations. This invention provides a shaped charge blasting tube structure and a charging structure with controllable shaped charge groove direction.

[0004] The technical solution adopted in this invention is as follows: A shaped charge blasting tube structure with controllable shaped charge groove direction includes an upper arc tube, a lower arc tube, and a movable arc tube. The upper and lower arc tubes are connected at the middle by a supporting rib. A movable gap is provided between the ends of the upper and lower arc tubes. There are two movable arc tubes, each with a shaped charge groove in its middle. The two movable arc tubes are respectively located at two movable gaps, and the shaped charge grooves of the movable arc tubes are located within the corresponding movable gaps. The outer diameter of the movable arc tube matches the inner diameter of the upper and lower arc tubes. The outer wall of one end of the movable arc tube contacts the inner wall of the upper arc tube, and the outer wall of the other end of the movable arc tube contacts the inner wall of the lower arc tube. A positioning component is provided between the end of the movable arc tube and the supporting rib. The positioning component is used to adjust or fix the angular position of the movable arc tube. The upper arc tube, the lower arc tube, and the two movable arc tubes form a shaped charge blasting tube.

[0005] A further technical solution is that the positioning component includes an arc-shaped positioning strip, a first slot is provided at the root of the supporting rib plate in the direction of the end of the movable arc tube, a second slot is provided on the outer side of the end of the movable arc tube, the two ends of the arc-shaped positioning strip are respectively located inside the first slot and the second slot, a radial positioning rib is provided on the inner side of the arc-shaped positioning strip near the first slot, and the arc-shaped positioning strip has various arc lengths.

[0006] A further technical solution is that the positioning component includes a strip-shaped elastic bladder, a limiting rib is provided at the end of the movable arc tube in the radial direction, a corner groove is formed between the limiting rib and the supporting rib, the strip-shaped elastic bladder is disposed inside the corner groove, and the strip-shaped elastic bladder can be filled and filled with a medium.

[0007] Based on the charging structure of the energy-concentrating blasting tube structure with controllable energy-concentrating groove, two columnar explosives are arranged inside each movable arc tube, and the two columnar explosives are located on both sides of the groove wall of the energy-concentrating groove and in contact with the inner wall of the movable arc tube. The columnar explosives are connected and fixed to the movable arc tube by fasteners.

[0008] A further technical solution is that the fixing component is a strap, and the cylindrical explosive is connected and fixed to the movable arc tube by the strap.

[0009] A further technical solution is that the fixing component is an arc-shaped clamping plate, both ends of the movable arc tube are provided with barbs, both ends of the arc-shaped clamping plate are provided with hooks that match the barbs, the hooks are connected to the barbs at corresponding positions, and the columnar explosive is disposed between the movable arc tube and the arc-shaped clamping plate.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. A shaped charge blasting tube is formed by an upper arc tube, a lower arc tube, and two movable arc tubes. The upper and lower arc tubes are connected by supporting ribs. The shaped charge groove of the movable arc tube is located in the corresponding movable gap. The outer diameter of the movable arc tube matches the inner diameter of the upper and lower arc tubes. The outer wall of one end of the movable arc tube contacts the inner wall of the upper arc tube, and the outer wall of the other end of the movable arc tube contacts the inner wall of the lower arc tube. In this way, the movable arc tube has the characteristic of being able to move clockwise or counterclockwise, and the direction of the shaped charge groove on the movable arc tube can also be changed accordingly. The adjustment or fixation of the position of the movable arc tube is determined by the positioning component, thereby realizing a shaped charge blasting tube structure with controllable shaped charge groove direction. This solves the problem that the shaped charge groove direction of traditional shaped charge tubes is fixed, and there is difficulty in adjusting the direction of the shaped charge jet when it is necessary to adjust it, which exposes obvious limitations.

[0011] 2. In this invention, the positioning component uses an arc-shaped positioning strip with radial positioning ribs to cooperate with the first slot at the root of the support rib plate and the second slot at the end of the movable arc tube. The arc-shaped positioning strip has various arc lengths. By changing the radial positioning ribs with different arc lengths, the position of the movable arc tube can be adjusted and fixed.

[0012] 3. Simultaneously, this invention proposes a charging structure adapted to the shaped charge blasting tube structure with controllable shaped charge trough direction. Two cylindrical explosives are set inside each movable arc tube. The cylindrical explosives are fixed to the inside of the movable arc tube by straps or arc-shaped clamps. This charging structure, by pre-connecting the cylindrical explosives to the movable arc tube, is not only easy to install when inserted between the upper and lower arc tubes, but also allows the cylindrical explosives to move with the movable arc tube when its position is adjusted, thus avoiding the explosives affecting the position adjustment of the movable arc tube. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the positioning component corresponding to Embodiment 2; Figure 3 This is a structural schematic diagram of the fastener corresponding to Example 1. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] like Figures 1-3 As shown.

[0016] Example 1 A shaped charge blasting tube structure with a controllable 6-directional energy-concentrating groove includes an upper arc tube 1, a lower arc tube 2, and a movable arc tube 3. The upper arc tube 1 and the lower arc tube 2 are connected at the middle by a supporting rib plate 4. A movable gap 5 is provided between the ends of the upper arc tube 1 and the lower arc tube 2. There are two movable arc tubes 3, and an energy-concentrating groove 6 is provided in the middle of the movable arc tube 3. The two movable arc tubes 3 are respectively located at two movable gaps 5, and the energy-concentrating groove 6 of the movable arc tube 3 is located in the movable gap 5 at the corresponding position. The outer diameter of the movable arc tube 3 matches the inner diameter of the upper arc tube 1 and the lower arc tube 2. The outer wall of one end of the movable arc tube 3 contacts the inner wall of the upper arc tube 1, and the outer wall of the other end of the movable arc tube 3 contacts the inner wall of the lower arc tube 2. A positioning component is provided between the end of the movable arc tube 3 and the supporting rib plate 4. The positioning component is used to adjust or fix the angular position of the movable arc tube 3. The upper arc tube 1, the lower arc tube 2, and the two movable arc tubes 3 form a shaped charge blasting tube.

[0017] The positioning component includes an arc-shaped positioning strip 7. A first slot 8 is provided at the root of the support rib plate 4 towards the end of the movable arc tube 3. A second slot 9 is provided on the outer side of the end of the movable arc tube 3. The two ends of the arc-shaped positioning strip 7 are located inside the first slot 8 and the second slot 9, respectively. A radial positioning rib 10 is provided on the inner side of the arc-shaped positioning strip 7 near the first slot 8. The arc-shaped positioning strip 7 has various arc lengths.

[0018] Based on the charging structure of the shaped charge blasting tube with controllable shaped charge groove direction, two cylindrical explosive charges 14 are arranged inside each movable arc tube 3, and the two cylindrical explosive charges 14 are respectively located on both sides of the groove wall of the shaped charge groove 6 and in contact with the inner wall of the movable arc tube 3. The cylindrical explosive charges 14 are connected and fixed to the movable arc tube 3 by a fixing member. The fixing member is a strap 15, and the cylindrical explosive charges 14 are connected and fixed to the movable arc tube 3 by the strap 15.

[0019] Structural Principle: The energy-concentrating groove 6 of the movable arc tube 3 is located within the corresponding movable gap 5. The outer diameter of the movable arc tube 3 matches the inner diameter of the upper arc tube 1 and the lower arc tube 2. One end of the outer wall of the movable arc tube 3 contacts the inner wall of the upper arc tube 1, and the other end of the outer wall of the movable arc tube 3 contacts the inner wall of the lower arc tube 2. In this way, the movable arc tube 3 has the characteristic of being able to move clockwise or counterclockwise, and the direction of the energy-concentrating groove 6 on the movable arc tube 3 can also be changed accordingly. The supporting stiffener 4 is an integral structure with the upper arc tube 1 and the lower arc tube 2. The supporting stiffener 4 is used to fix and support the upper arc tube 1 and the lower arc tube 2, and is the basic structure of this invention. When installing the movable arc tube 3, the two movable arc tubes 3 pass through the axial direction from the ends. Between the upper arc tube 1 and the lower arc tube 2, the arc-shaped positioning strip 7 is also inserted axially from its end into the first slot 8 and the second slot 9. Each movable arc tube 3 requires two arc-shaped positioning strips 7 for fixation, and the arc lengths of the two strips are compatible. For example, if the energy-concentrating groove 6 needs to be in the middle of the movable gap 5, then the arc lengths of the two positioning strips 7 are equal. If the energy-concentrating groove 6 needs to be in the upper part of the movable gap 5, then the arc length of the upper positioning strip 7 is less than that of the lower one. If the energy-concentrating groove 6 needs to be in the lower part of the movable gap 5, then the arc length of the upper positioning strip 7 is greater than that of the lower one. If the direction of the energy-concentrating groove 6 needs to be changed after the shaped charge is inserted into the borehole, the corresponding arc-shaped positioning strip 7 can be removed and replaced with the desired one. The corresponding charge structure: After connecting the cylindrical explosive 14 to the movable arc tube 3 with straps 15 (cable ties or tape), it is assembled together with the movable arc tube 3. A perforation is made on the movable arc tube 3 for the straps 15 to pass through. After the shaped charge tube is inserted into the borehole and confirmed to be correct, the explosive and the shaped charge tube are sealed in the borehole with stemming material, and the stemming material is tamped down with a stemming rod.

[0020] Example 2: Unlike Example 1, the positioning component includes a strip-shaped elastic bladder 11. A limiting rib 12 is provided radially at the end of the movable arc tube 3. A corner groove 13 is formed between the limiting rib 12 and the supporting rib 4. The strip-shaped elastic bladder 11 is disposed inside the corner groove 13 and can be filled with or filled with a medium. This example provides a second method for positioning the component. This method utilizes the deformation characteristics of the strip-shaped elastic bladder 11. By controlling the amount of medium filled, the volume of the strip-shaped elastic bladder 11 can be controlled. The position of the movable arc tube 3 can be controlled and positioned using the upper and lower strip-shaped elastic bladders 11. For example, when the energy-concentrating groove 6 needs to be in the middle position of the movable gap 5, the pressure and amount of the medium inside the upper and lower strip-shaped elastic bladders 11 are the same. When the energy-concentrating groove 6 needs to be in the upper position of the movable gap 5, the pressure and amount of the medium inside the upper strip-shaped elastic bladder 11 are less than those inside the lower strip-shaped elastic bladder 11. The medium can be water or air, and the strip-shaped elastic bladder 11 is a rubber air bladder. To further ensure that the strip-shaped elastic bladder 11 is inside the corner groove 13, the top of the strip-shaped elastic bladder 11 is partially bonded to the inner wall of the upper arc tube 1 or the root of the supporting rib plate.

[0021] Example 3: Unlike Example 1, the fixing component is an arc-shaped clamping plate 16. Both ends of the movable arc tube 3 are provided with barbs 17, and both ends of the arc-shaped clamping plate 16 are provided with hooks 18 that match the barbs 17. The hooks 18 connect with the corresponding barbs 17. The cylindrical explosive 14 is placed between the movable arc tube 3 and the arc-shaped clamping plate 16. In this example, the cylindrical explosive 14 is fixed by the arc-shaped clamping plate 16, which is easier to operate and install compared to the strapping method 15.

[0022] The above description is merely a preferred embodiment of the present invention.

Claims

1. A shaped charge blasting tube structure with controllable shaped charge trough direction, characterized in that, The system includes an upper arc tube (1), a lower arc tube (2), and a movable arc tube (3). The upper arc tube (1) and the lower arc tube (2) are connected in the middle by a supporting rib plate (4). A movable gap (5) is provided between the ends of the upper arc tube (1) and the lower arc tube (2). The movable arc tube (3) includes two parts. An energy-concentrating groove (6) is provided in the middle of the movable arc tube (3). The two movable arc tubes (3) are respectively located at the two movable gaps (5), and the energy-concentrating groove (6) of the movable arc tube (3) is located at the corresponding movable gap. (5) Inside, the outer diameter of the movable arc tube (3) matches the inner diameter of the upper arc tube (1) and the lower arc tube (2). The outer wall of one end of the movable arc tube (3) contacts the inner wall of the upper arc tube (1), and the outer wall of the other end of the movable arc tube (3) contacts the inner wall of the lower arc tube (2). A positioning component is set between the end of the movable arc tube (3) and the supporting stiffener (4). The positioning component is used to adjust or fix the angle position of the movable arc tube (3). The upper arc tube (1), the lower arc tube (2) and the two movable arc tubes (3) form a shaped energy blasting tube.

2. The energy-concentrating blasting tube structure with controllable energy-concentrating groove direction according to claim 1, characterized in that, The positioning component includes an arc-shaped positioning strip (7), a first slot (8) is provided at the root of the supporting rib plate (4) towards the end of the movable arc tube (3), a second slot (9) is provided on the outer side of the end of the movable arc tube (3), the two ends of the arc-shaped positioning strip (7) are respectively located inside the first slot (8) and the second slot (9), a radial positioning rib (10) is provided on the inner side of the arc-shaped positioning strip (7) and near the first slot (8), and the arc-shaped positioning strip (7) has various arc lengths.

3. The energy-concentrating blasting tube structure with controllable energy-concentrating groove direction according to claim 1, characterized in that, The positioning component includes a strip-shaped elastic bladder (11), and a limiting rib plate (12) is provided at the end of the movable arc tube (3) in the radial direction. A corner groove (13) is formed between the limiting rib plate (12) and the supporting rib plate (4). The strip-shaped elastic bladder (11) is disposed inside the corner groove (13) and can be filled with or filled with a medium.

4. A charge structure based on the shaped charge channel direction controllable shaped charge blasting tube structure according to claim 1, characterized in that, Two columnar explosives (14) are set inside each movable arc tube (3), and the two columnar explosives (14) are located on both sides of the wall of the energy-concentrating tank (6) and in contact with the inner wall of the movable arc tube (3). The columnar explosives (14) are connected and fixed to the movable arc tube (3) by fasteners.

5. The charge structure according to claim 4, characterized in that, The fixing component is a strap (15), and the cylindrical explosive (14) is connected and fixed to the movable arc tube (3) by the strap (15).

6. The charge structure according to claim 4, characterized in that, The fixing component is an arc-shaped clamping plate (16). Both ends of the movable arc tube (3) are provided with barbs (17). Both ends of the arc-shaped clamping plate (16) are provided with hooks (18) that match the barbs (17). The hooks (18) are connected to the barbs (17) at the corresponding positions. The columnar explosive (14) is placed between the movable arc tube (3) and the arc-shaped clamping plate (16).

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