A shaped charge liner installation device and method

Abstract

The present application relates to a kind of polyenergy pipe cover installation device and installation method, belong to polyenergy blasting technical field, for solving the problem that polyenergy pipe cover is coupled badly, installation is inclined and explosive waste etc. when polyenergy pipe cover is installed in prior art, due to lack of auxiliary installation equipment in manual operation process, therefore be influenced by the difference of worker operation proficiency and installation method, frequently appear;Including: sleeve and charge bar fixing mechanism, the sleeve includes guide section and filling section, when operation, explosive strip is inserted into the sleeve from the guide section and enters the filling section;The inner diameter of the filling section is greater than the inner diameter of the guide section;The inner diameter of the guide section is greater than the inner diameter of the polyenergy pipe cover and the explosive strip;The charge bar fixing mechanism includes strip-shaped small claw and drive assembly, the strip-shaped small claw is hinged in the inside of the filling section, and the drive assembly is used to drive the strip-shaped small claw to rotate;Several strip-shaped small claws are annularly distributed on the inner wall of the filling section of the sleeve.

Description

Technical Field

[0001] This invention belongs to the field of shaped charge blasting technology, and in particular relates to a shaped charge tube cover installation device and installation method. Background Technology

[0002] Blasting methods have been widely used in urban subway excavation projects. However, due to increasingly stringent controls on detonating cords and other explosive materials in cities, the supply of detonating cords in many cities is restricted. The segmented charge structure of detonating cords is a key technology for ensuring smooth blasting results in underground engineering, but due to limited supply of detonating cords, this charging structure is difficult to adopt in some projects. Against this backdrop, shaped charge tubes have emerged as a detonation transmission device to replace detonating cords. The detonation transmission effect of shaped charge tubes is closely related to the operator's skill level, directly affecting the transmission distance and blasting effect. Furthermore, shaped charge blasting requires segmented charging and has high requirements for charge quality, resulting in a complex and time-consuming construction process.

[0003] Currently, the diameter of the shaped charge tube is the same as the diameter of the explosive charge. During installation, workers need to first cut the end of the explosive charge with a knife, then press the front end of the shaped charge tube to make its diameter smaller than the explosive charge's diameter, and then slowly insert the shaped charge tube into the explosive charge. When the explosive overflows from the opening of the shaped charge tube, it indicates that the explosive has filled the interior of the shaped charge tube, and the shaped charge tube and the explosive are coupled. However, due to differences in worker skill and installation techniques, problems such as poor coupling between the shaped charge tube and the explosive, installation tilting, and explosive waste often occur, thus affecting the detonation transmission effect of the shaped charge tube and ultimately adversely affecting the blasting effect. Furthermore, during the process of loading the explosive charge with the shaped charge tube installed into the borehole, workers need to use a jack to push the explosive charge into the borehole segment by segment. Because the shaped charge has many segments and requires manual control of the distance between the segments, the construction process is cumbersome and time-consuming. At the same time, because the borehole diameter is larger than the explosive diameter and the internal conditions of the borehole are complex, improper loading is prone to occur during the loading process, further affecting the detonation transmission effect of the shaped charge tube. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a shaped charge tube installation device and method, which solves the problems that often occur during the installation of shaped charge tubes in the prior art due to the lack of auxiliary installation equipment during manual operation. As a result, the installation is affected by the differences in the operator's skill level and installation techniques, leading to problems such as poor coupling between the shaped charge tube and the explosive, installation tilting, and waste of explosives.

[0005] To achieve the above objectives, the present invention provides a shaped charge tube installation device and method, comprising: a sleeve and a charge fixing mechanism, wherein the sleeve includes a guide section and a filling section, and during operation, the charge is inserted into the sleeve from the guide section and enters the filling section; the inner diameter of the filling section is larger than the inner diameter of the guide section; the inner diameter of the guide section is larger than the inner diameter of the shaped charge tube and the charge; the charge fixing mechanism includes a strip-shaped claw and a driving assembly, the strip-shaped claw is hinged to the inner side of the filling section, and the driving assembly is used to drive the strip-shaped claw to rotate; a plurality of the strip-shaped claws are evenly distributed in a ring on the inner wall of the filling section of the sleeve.

[0006] Optionally, one end of the strip-shaped claw is hinged to the inner wall of the sleeve filling section, and the other end of the strip-shaped claw is provided with a claw tip.

[0007] Optionally, the side of the strip-shaped claw is provided with claw blades.

[0008] Optionally, the drive assembly includes an elastic element, a connecting rod, and a drive rod; a through hole is provided on the filling section of the sleeve, the connecting rod passes through the through hole, one end of the connecting rod located inside the sleeve is hinged to the middle of the strip-shaped claw, and the other end of the connecting rod located outside the sleeve is hinged to one end of the drive rod; the elastic element is fixedly disposed between the connecting rod and the sleeve; a support hinge seat is fixedly provided on the outer wall of the sleeve, and the middle part of the drive rod is hinged to the support hinge seat.

[0009] Optionally, the energy-concentrating tube cover installation device further includes a protective sleeve, which is fitted over the drive assembly 202 and the sleeve.

[0010] Optionally, the shaped charge tube cover installation device further includes a limiting mechanism, which includes a charge slot and a connector. The charge slot is used to fix the shaped charge tube cover filled with explosives, and the connector is used to sequentially splice several charge slots together.

[0011] Optionally, the charge tank is provided with graduations.

[0012] Optionally, the charge slot is a semi-circular groove, and a limiting slot is provided on the connector head, allowing the end of the charge slot to be inserted into the limiting slot.

[0013] Optionally, the claw blades of the strip-shaped claws are serrated.

[0014] The present invention provides a method for installing a focusing tube cover, comprising the following steps:

[0015] Step S1: Insert the explosive strip into the filling section at the bottom of the sleeve. The strip skin is pierced by the tip of the strip-shaped claw at the top of the sleeve. Continue to push the explosive strip until it emerges from the top of the sleeve.

[0016] Step S2: Rotate the sleeve or the medicine strip, and the medicine strip skin is cut off by the claw blade at the front end of the strip-shaped claw, and remove the cut medicine strip skin;

[0017] Step S3: Grip the lower part of the drive rod. The strip-shaped claw retracts towards the sleeve wall under the action of the lever, pressing the medicine strip skin so that the medicine strip cannot move at will;

[0018] Step S4: Press the focusing tube cover into the sleeve at a uniform speed from the top of the sleeve. The drug strip does not move under the fixation of the strip claw, and the focusing tube cover is installed into the drug strip.

[0019] Step S5: As the shaped charge tube is pressed into the sleeve, the explosive gradually fills the inside of the shaped charge tube. When the explosive overflows from the opening of the shaped charge tube, continue to press the shaped charge tube into the sleeve until the shaped charge tube and the explosive are fully coupled.

[0020] Step S6: After the energy-concentrating tube cover is inserted into the sleeve to the required depth, release the drive rod, the strip claw loosens the strip skin, and continue to press the energy-concentrating tube cover into the sleeve. The strip moves downward with the energy-concentrating tube cover, and then the strip with the energy-concentrating tube cover installed is taken out from the bottom of the sleeve.

[0021] Step S7: Secure the explosive with the shaped charge tube installed to the first loading slot of the limiting device with a binding rope;

[0022] Step S8: Secure the explosive charge trough, place it into the borehole, and attach the connector to the end.

[0023] Step S9: According to the distance between the previous section of the explosive strip in the construction design, fix the explosive strip with the energy-concentrating tube cover on the second explosive loading trough with binding rope;

[0024] Step S10: Connect the second explosive charging trough, which has the explosive fixed in place, to the first explosive charging trough through the connector and insert it into the borehole. At the same time, attach the connector at the end to connect the third explosive charging trough.

[0025] Step S11: Repeat steps S10-S11 until all explosives are loaded according to the construction design, and the loading work is completed.

[0026] Optionally, when installing the shaped charge tube on half of the explosive, the explosive is cut in half with a knife, and then the steps S1, S3-S11 are followed.

[0027] As described above, the energy-concentrating tube cover installation device and installation method of the present invention have at least the following beneficial effects:

[0028] 1. Through the synergistic action of the sleeve, strip-shaped claw, and drive assembly, the present invention can quickly and accurately complete the installation of the shaped charge tube, avoiding problems such as poor coupling between the shaped charge tube and the explosive or installation tilt caused by improper manual operation in traditional methods, thus significantly improving the installation quality and efficiency.

[0029] 2. In traditional installation methods, explosives can easily spill out of the explosive strip due to improper operation by workers, resulting in waste. This invention, through the restraining effect of the sleeve and the fixing function of the strip-shaped claws, ensures that the explosives do not spill out during installation, effectively reducing explosive waste.

[0030] 3. The inner diameter of the sleeve of the present invention is close to the diameter of the shaped charge tube and the explosive strip, which can ensure that the shaped charge tube and the central axis of the explosive are on the same straight line, avoiding the problem of tilting of the shaped charge tube caused by manual operation in the traditional method, thereby ensuring that the direction of the shaped charge jet is parallel to the borehole and improving the detonation effect.

[0031] 4. This invention achieves precise positioning and rapid assembly of the propellant strips through a limiting device (including a charging slot and a connector), avoiding the cumbersome operation of repeatedly using a ram to push the propellant strips in the traditional method, significantly simplifying the construction process and improving construction efficiency.

[0032] 5. The charging trough of the present invention can be spliced ​​and lengthened by connectors, making it suitable for blast holes of different lengths and complexities. It can be used flexibly in confined spaces to meet various construction needs.

[0033] 6. Through the design of the drive component and elastic element, this invention makes the contraction and opening of the strip claw easier, reduces the difficulty of operation for workers and the dependence on skill, and reduces human error.

[0034] 7. By ensuring precise coupling and coaxiality between the shaped charge tube and the explosive, this invention can significantly improve the detonation transmission effect of the shaped charge tube, thereby enhancing the overall blasting effect and meeting the high-quality requirements of smooth blasting in underground engineering. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the drug strip fixing mechanism according to an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the drug strip fixing mechanism for cutting the drug strip skin according to an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the structure for installing the energy-concentrating tube cover according to an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the strip-shaped claw according to an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the charge tank according to an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram illustrating the connection state of the multi-section charge tank according to an embodiment of the present invention;

[0042] Figure 8 This is a schematic diagram of the fixing of the energy-concentrating tube cover according to an embodiment of the present invention. Detailed Implementation

[0043] Specific embodiments of the present invention will now be described in detail. It should be noted that the embodiments described herein are for illustrative purposes only and are not intended to limit the invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other instances, well-known circuits, software, or methods have not been specifically described to avoid obscuring the invention.

[0044] Throughout this specification, references to "an embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "in an embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0045] Please see Figures 1-3This invention provides an embodiment of a shaped charge tube cover installation device and installation method, comprising: a sleeve 1 and a charge stick fixing mechanism 202. The sleeve 1 includes a guide section 101 and a filling section 102. During operation, the charge stick 5 is inserted from the guide section 101 into the sleeve 1 and enters the filling section 102. The inner diameter of the filling section 102 is larger than the inner diameter of the guide section 101. The inner diameter of the filling section 102 is larger than the inner diameter of the shaped charge tube cover 3 and the inner diameter of the charge stick 5. The charge stick fixing mechanism 202 includes a strip-shaped claw 201 and a driving assembly 202. The strip-shaped claw 201 is hinged to the inner side of the filling section 102, and the driving assembly 202 is used to drive the strip-shaped claw 201 to rotate. A plurality of strip-shaped claws 201 are evenly distributed in a ring on the inner wall of the filling section 102 of the sleeve 1. One end of the strip-shaped claw 201 is hinged to the inner wall of the filling section 102 of the sleeve 1, and the other end of the strip-shaped claw 201 is provided with a claw tip 2011. Through the synergistic action of the sleeve 1, the strip-shaped claw 201 and the drive assembly 202, the present invention can quickly and accurately complete the installation of the shaped charge tube 3, avoiding problems such as poor coupling between the shaped charge tube 3 and the explosive and installation tilt caused by improper manual operation in traditional methods, and significantly improving the installation quality and efficiency.

[0046] In this embodiment, please refer to Figures 1-4 The strip-shaped claw 201 has claw blades 2012 on its side, facilitating the annular cutting of the explosive strip 5's end. The side of the strip-shaped claw 201 near the inner wall of the sleeve 1 can be provided with anti-slip teeth or fixed with anti-slip tape, facilitating the securing of the explosive strip. Under normal conditions, due to the spring action, the strip-shaped claw 201 forms an angle with the sleeve 1 wall, the angle being less than 10 degrees.

[0047] In this embodiment, please refer to Figures 1-3 The driving assembly 202 includes an elastic element 2023, a connecting rod 2022, and a driving rod 2021. A through hole 4 is provided on the filling section 102 of the sleeve 1. The connecting rod 2022 passes through the through hole 4. One end of the connecting rod 2022 located inside the sleeve 1 is hinged to the middle of the strip-shaped claw 201, and the other end of the connecting rod 2022 located outside the sleeve 1 is hinged to one end of the driving rod 2021. The elastic element 2023 is fixedly disposed between the connecting rod 2022 and the sleeve 1. The elastic element 2023 can be a spring. A support hinge seat 1021 is fixedly provided on the outer wall of the sleeve 1, and the middle part of the driving rod 2021 is hinged to the support hinge seat 1021.

[0048] In this embodiment, please refer to Figures 1-3 The energy-concentrating tube cover 3 installation device also includes a protective sleeve 10, which is sleeved on the outside of the drive assembly 202 and the sleeve 1. The protective sleeve 10 is made of a flexible material, such as rubber, silicone or leather.

[0049] In this embodiment, please refer to Figures 5-8 The shaped charge tube cover 3 installation device further includes a limiting mechanism, which includes a charge slot 601 and a connector 7. The charge slot 601 is used to fix the shaped charge tube cover 3 filled with explosives, and several charge slots 601 are sequentially spliced ​​together through the connector 7. The charge slot 601 is provided with a scale.

[0050] In this embodiment, please refer to Figures 5-8 The charge groove 601 is a semi-circular groove, and both ends of the connector 7 have limiting slots 701. The middle part of the charge groove 601 can be hollowed out and fixedly spliced ​​into a groove shape by several reinforcing ribs 602. The ends of the charge groove 601 can be inserted into the limiting slots 701. The claw blade 2012 of the strip claw 201 can be serrated or blade-shaped for easy cutting. The cutting edge direction of the claw blade 2012 is perpendicular to the rotation direction of the strip claw 201 around the hinge point.

[0051] The present invention provides a method for installing a focusing tube cover 3, comprising the following steps:

[0052] Step S1: Insert the explosive strip 5 into the filling section 102 at the bottom of the sleeve 1. The strip skin is pierced by the claw tip 2011 of the strip-shaped claw 201 at the top of the sleeve 1. Continue to push the explosive strip until it emerges from the top of the sleeve 1.

[0053] Step S2: Rotate the sleeve 1 or the medicine strip, and the medicine strip skin is cut off by the claw blade 2012 at the front end of the strip-shaped claw 201, and remove the cut medicine strip skin;

[0054] Step S3: Grip the lower part of the drive rod 2021. The strip-shaped claw 201 retracts towards the wall of the sleeve 1 under the action of the lever, pressing the strip skin so that the strip cannot move at will.

[0055] Step S4: Press the energy-concentrating tube cover 3 into the sleeve 1 at a uniform speed from the top of the sleeve 1. The drug strip does not move under the fixation of the strip-shaped claw 201, and the energy-concentrating tube cover 3 is installed into the drug strip.

[0056] Step S5: During the process of pressing the shaped charge tube 3 into the sleeve 1, the explosive gradually fills the interior of the shaped charge tube 3. When the explosive overflows from the opening of the shaped charge tube 3, continue to press the shaped charge tube 3 into the sleeve 1 until the shaped charge tube 3 is completely coupled with the explosive.

[0057] Step S6: When the energy-concentrating tube cover 3 is inserted into the sleeve 1 to the required depth, the drive rod 2021 is released, the strip claw 201 releases the drug strip skin, and the energy-concentrating tube cover 3 is pressed into the sleeve 1. The drug strip moves downward with the energy-concentrating tube cover 3. Then the drug strip with the energy-concentrating tube cover 3 installed is taken out from the bottom of the sleeve 1.

[0058] Step S7: Secure the explosive with the shaped charge tube 3 installed in the first loading slot 601 of the limiting device with a binding rope;

[0059] Step S8: Secure the explosive loading trough 601, place it into the borehole, and attach the connector 7 to the end.

[0060] Step S9: According to the distance between the previous section of the explosive strip in the construction design, fix the explosive strip with the energy-concentrating tube cover 3 on the second section of the explosive loading trough 601 with the binding rope 8;

[0061] Step S10: Connect the second explosive charging trough 601 with the explosive fixed in place to the first explosive charging trough 601 through the connector 7 and insert it into the borehole. At the same time, attach the connector 7 at the end to connect the third explosive charging trough 601.

[0062] Step S11: Repeat steps S10-S11 until all explosives are loaded according to the construction design, and the loading work is completed.

[0063] Through the synergistic action of the sleeve 1, the strip-shaped claw 201, and the drive assembly 202, this invention can precisely control the coupling process between the shaped charge tube 3 and the explosive, ensuring the coaxiality and tight coupling of the shaped charge tube 3 and the explosive. This avoids the problems of tilting or poor coupling of the shaped charge tube 3 caused by improper manual operation in traditional methods, significantly improving the installation quality. It can also complete the installation of the shaped charge tube 3 quickly and efficiently, avoiding the inefficiency caused by cumbersome manual operation in traditional methods, significantly improving construction efficiency. Furthermore, this invention achieves precise positioning and rapid splicing of the explosive strip, avoiding the cumbersome operation of repeatedly using a ram to push the explosive strip in traditional methods, significantly simplifying the construction process and improving construction efficiency.

[0064] In this embodiment, please refer to Figures 5-8 When installing the shaped charge tube 3 on the half of the explosive, cut the explosive in the middle with a knife, and then proceed with steps S1, S3-S11.

[0065] The shaped charge tube cover installation method of the present invention significantly improves installation efficiency and quality, reduces explosive waste, lowers the difficulty of worker operation, and ensures blasting effect through standardized operation procedures and structural optimization, and has important engineering application value.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A device for installing a concentrating tube cover, characterized in that, include: Sleeve, The sleeve includes a guide section and a filling section. During operation, the explosive strip is inserted into the sleeve from the guide section and enters the filling section. The inner diameter of the filling section is larger than the inner diameter of the guide section. The inner diameter of the guide section is larger than the inner diameter of the shaped charge tube and the inner diameter of the explosive strip. Drug strip fixing mechanism The pill-fixing mechanism includes strip-shaped claws and a drive assembly. The strip-shaped claws are hinged to the inner side of the filling section, and the drive assembly is used to drive the strip-shaped claws to rotate. A plurality of strip-shaped claws are evenly distributed in a ring on the inner wall of the filling section of the sleeve. One end of the strip-shaped claw is hinged to the inner wall of the sleeve filling section, and the other end of the strip-shaped claw is provided with a claw tip; The side of the strip-shaped claw is provided with claw blades.

2. The energy-concentrating tube cover installation device according to claim 1, characterized in that: The drive assembly includes an elastic element, a connecting rod, and a drive rod; The sleeve has a through hole in the filling section, and the connecting rod passes through the through hole. One end of the connecting rod inside the sleeve is hinged to the middle of the strip-shaped claw, and the other end of the connecting rod outside the sleeve is hinged to one end of the driving rod. The elastic element is fixedly disposed between the connecting rod and the sleeve. A support hinge is fixedly disposed on the outer wall of the sleeve, and the middle part of the driving rod is hinged to the support hinge.

3. The energy-concentrating tube cover installation device according to claim 1, characterized in that: It also includes a protective sleeve, which is fitted over the drive assembly and the sleeve.

4. The energy-concentrating tube cover installation device according to claim 1, characterized in that: It also includes a limiting mechanism, which includes a charge slot and a connector. The charge slot is used to fix the shaped charge tube filled with explosives, and the connector is used to connect several charge slots in sequence.

5. The energy-concentrating tube cover installation device according to claim 4, characterized in that: The loading trough is equipped with graduations.

6. The energy-concentrating tube cover installation device according to claim 4, characterized in that: The loading slot is a semi-circular slot, and a limiting slot hole is provided on the connector head. The end of the loading slot can be inserted and matched with the limiting slot hole.

7. A method for installing a focusing tube cover, characterized in that, The energy-concentrating tube cover installation device according to claim 5 includes the following steps: Step S1: Insert the explosive strip into the filling section at the bottom of the sleeve. The strip skin is pierced by the tip of the strip-shaped claw at the top of the sleeve. Continue to push the explosive strip until it emerges from the top of the sleeve. Step S2: Rotate the sleeve or the medicine strip, and the medicine strip skin is cut off by the claw blade at the front end of the strip-shaped claw, and remove the cut medicine strip skin; Step S3: Grip the lower part of the drive rod. The strip-shaped claw retracts towards the sleeve wall under the action of the lever, pressing the medicine strip skin so that the medicine strip cannot move at will; Step S4: Press the focusing tube cover into the sleeve at a uniform speed from the top of the sleeve. The drug strip does not move under the fixation of the strip claw, and the focusing tube cover is installed into the drug strip. Step S5: As the shaped charge tube is pressed into the sleeve, the explosive gradually fills the inside of the shaped charge tube. When the explosive overflows from the opening of the shaped charge tube, continue to press the shaped charge tube into the sleeve until the shaped charge tube and the explosive are fully coupled. Step S6: After the energy-concentrating tube cover is inserted into the sleeve to the required depth, release the drive rod, the strip claw loosens the strip skin, and continue to press the energy-concentrating tube cover into the sleeve. The strip moves downward with the energy-concentrating tube cover, and then the strip with the energy-concentrating tube cover installed is taken out from the bottom of the sleeve. Step S7: Secure the explosive with the shaped charge tube installed to the first loading slot of the limiting device with a binding rope; Step S8: Secure the explosive charge trough, place it into the borehole, and attach the connector to the end. Step S9: According to the distance between the previous section of the explosive strip in the construction design, fix the explosive strip with the energy-concentrating tube cover on the second explosive loading trough with binding rope; Step S10: Connect the second explosive charging trough, which has the explosive fixed in place, to the first explosive charging trough through the connector and insert it into the borehole. At the same time, attach the connector at the end to connect the third explosive charging trough. Step S11: Repeat steps S10-S11 until all explosives are loaded according to the construction design, and the loading work is completed.

8. The method for installing a focusing tube cover according to claim 7, characterized in that: When installing the shaped charge tube on half of the explosive charge, cut the charge in half with a knife, and then proceed with steps S1, S3-S11.

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