Bidirectional hydrodynamic cavitation explosive drawing-out device suitable for long projectile body

Abstract

The utility model discloses a bidirectional hydrodynamic cavitation explosive taking device suitable for a long projectile body, which belongs to the technical field of scrapped ammunition treatment and comprises a lifting mechanism for supporting the long projectile body, a cavitation water tank and a spray rod assembly are respectively arranged at two ends of the long projectile body, and the spray rod assembly sprays high-pressure water to an explosive column in the long projectile body entering the cavitation water tank; a collecting box is arranged on the side face of the cavitation water tank to complete charging recovery. The long bomb body is lifted to the position with the same height as the spray rod assemblies on the two sides through the lifting mechanism, the two ends of the long bomb body are inserted into the cavitation water tanks on the two sides correspondingly, the cavitation water tanks provide a water submerging environment for the long bomb body, the spray rod assemblies spray high-pressure water into the long bomb body in the cavitation water tanks, cavitation jet flow serves as a core, and through a low-pressure double-end explosive drawing-out mode, the long bomb body can be drawn out. Separation of the shell and the charged powder is completed, and the shell is convenient to recycle. The two-way explosive drawing-out device can conduct two-way explosive drawing out on the long projectile body, safe and efficient explosive drawing out, shell recycling and explosive charging of the long projectile body with the medium-large caliber are achieved, and resource waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of scrapped ammunition processing, in particular to a bidirectional hydraulic cavitation charge removal device suitable for a long projectile. Background Art

[0002] Currently, a large amount of retired ammunition is sitting unprocessed in warehouses, and the production process also generates waste and defective products. Existing disposal methods primarily rely on incineration and blasting, but the casings of some long ammunition bodies are of high value. Direct destruction not only pollutes the environment, poses safety risks to operators, but also results in a significant waste of resources.

[0003] In view of this, technicians have developed the use of high-pressure water jet technology to remove the explosives from retired and scrapped ammunition, and then recover their shells for reuse. However, the water pressure of high-pressure water jet technology is generally above 50MPa, its erosion effect has a "rigid" characteristic, and it mostly operates in the air, which poses a high safety risk. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a bidirectional hydraulic cavitation charge removal device suitable for a long projectile.

[0005] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0006] A bidirectional hydraulic cavitation drug removal device suitable for long projectiles includes a lifting mechanism for supporting the long projectile. A cavitation water tank and a spray rod assembly are respectively provided at both ends of the long projectile. The cavitation water tank is used to fix the end of the long projectile and provide a water immersion space for the long projectile. The spray rod assembly is used to spray high-pressure water onto the drug column in the long projectile entering the cavitation water tank. A collection box is provided on the side of the cavitation water tank.

[0007] Furthermore, the cavitation water tank and the spray rod assembly are both arranged on a guide rail, the long projectile is arranged directly above the guide rail and coaxial with the spray rod of the spray rod assembly, and the bottom of the cavitation water tank is provided with a driving wheel driven by a driving component, which is used to drive the end of the long projectile into the clamping port of the cavitation water tank and seal it; the bottom of the spray rod assembly is provided with a walking mechanism, which is used to drive the spray rod assembly into the cavitation water tank and the long projectile.

[0008] Furthermore, the spray rod assembly includes a spray rod, a base and a mounting seat. The mounting seat is arranged on the top of the base. The spray rod is arranged through the mounting seat. The water inlet end of the spray rod can be connected to the high-pressure water pipe. The water outlet end of the spray rod can pass through the guide hole on the side wall of the cavitation water tank to enter the cavitation water tank. The water outlet end of the spray rod is provided with a cavitation nozzle.

[0009] Furthermore, a rotating component is provided in the mounting seat for driving the spray rod to rotate.

[0010] Furthermore, the mounting seat is in sliding cooperation with the spray rod, and a pressure sensor and a buffer spring are provided between the spray rod and the mounting seat; the pressure sensor can be linked with the walking mechanism.

[0011] Furthermore, the traveling mechanism includes a traveling wheel, a second motor and a drag chain, the second motor drives the traveling wheel to move on the guide rail, and the second motor is connected to the power supply through the drag chain.

[0012] Furthermore, the lifting mechanism is two and is respectively arranged near the two ends of the long elastic body. The lifting mechanism includes a support seat, a lifting component and a lifting slot. The support seat is connected to the lifting slot through the lifting component. A position sensor that can be linked with the lifting component is provided on the outer wall of the long elastic body.

[0013] Furthermore, a discharge pipe is provided at the bottom of the cavitation water tank, and the outlet of the discharge pipe is arranged above the inlet of the collection box; a filter is provided on the upper part of the collection box, and the mesh diameter of the filter is ≤5mm.

[0014] Furthermore, the cavitation water tank is made of 316L stainless steel, and the water temperature sprayed by the spray bar assembly is ≤45°C and the water pressure is ≤25MPa.

[0015] Furthermore, the length of the long projectile is ≤4000 mm and the outer diameter is ≤300 mm.

[0016] Compared with the prior art, the technical progress achieved by this utility model is:

[0017] The utility model uses a lifting mechanism to lift the long projectile to be processed to a position at the same height as the spray bar assemblies on both sides, inserts the two ends of the long projectile into the cavitation water tank, uses the cavitation water tank to provide a water-submerged environment for the long projectile, and uses the spray bar assembly to spray high-pressure water to the long projectile body charge entering the cavitation water tank. With the cavitation jet as the core, the shell and the charge are separated by low-pressure double-end charge removal, making it easy to recover the shell; at the same time, the removed charge enters the collection box for recycling. The utility model can perform two-way charge removal on the long projectile, realizing safe and efficient charge removal of medium and large caliber long projectiles, and can provide a solution for the resource utilization of high-value engines, warhead shells and charges. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0019] In the attached figure:

[0020] Figure 1A schematic structural diagram of a bidirectional hydraulic cavitation device for removing explosives from a long projectile provided in an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A top view of a bidirectional hydraulic cavitation charge removal device for long projectiles;

[0022] Figure 3 for Figure 1 Left side view of the bidirectional hydraulic cavitation charge removal device for long projectiles;

[0023] Figure 4 This is a schematic diagram of the cooperation between the spray boom and the anti-collision mechanism in an embodiment of the utility model.

[0024] In the picture:

[0025] 1-Spray rod assembly; 2-Cavitation water tank; 3-Long elastic body; 4-Lifting mechanism; 5-Collection box; 6-Drag chain; 7-Guide rail; 8-Traveling mechanism; 9-Support plate; 10-Spray rod; 11-Base; 12-Mounting seat; 13-First motor; 14-Second motor; 15-Support seat; 16-Lifting component; 17-Lifting slot; 18-Discharge pipe; 19-Filter screen; 20-Guide hole; 21-High-pressure water pipe; 22-Drive component; 23-Pressure sensor; 24-Buffer spring; 25-Baffle; 26-Push plate; 27-Guide rod. DETAILED DESCRIPTION

[0026] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. The following embodiments of the present invention will be described in conjunction with the accompanying drawings.

[0027] like Figure 1 、 Figure 2 and Figure 3 As shown, a bidirectional hydraulic cavitation charge removal device suitable for long projectiles includes a lifting mechanism 4 for supporting the long projectile 3. A cavitation water tank 2 and a spray bar assembly 1 are provided at each end of the long projectile 3. The cavitation water tank 2 is used to secure the ends of the long projectile 3 and provide a water immersion space for the long projectile 3. The spray bar assembly 1 is used to spray high-pressure water onto the charge within the long projectile 3 after it enters the cavitation water tank 2. A collection box 5 is provided on the side of the cavitation water tank 2. This solution uses the spray bar assembly to spray high-pressure water into the long projectile after it enters the cavitation water tank. Using cavitation jets as the core, this low-pressure, dual-end charge removal method achieves safe and efficient charge removal from medium- and large-caliber long projectiles, completes the separation of the hull and charge, and enables hull recycling. This utility model can solve the problem of hull and charge separation for retired or defective long-range rockets with a range of 30 km or 70 km or high-burning-rate engines, reducing resource waste. Furthermore, the projectile remains submerged in water during the charge removal process, minimizing safety risks.

[0028] In a specific embodiment of the present invention, Figure 1 As shown, the cavitation water tank 2 and the spray bar assembly 1 are both mounted on a guide rail 7. The long projectile 3 to be treated is positioned directly above the guide rail 7 and coaxially with the spray bar 10 of the spray bar assembly 1. A drive wheel driven by a drive component 22 is provided at the bottom of the cavitation water tank 2 for driving the end of the long projectile 3 into the clamping opening of the cavitation water tank 2 and sealingly securing it. A running mechanism 8 is provided at the bottom of the spray bar assembly 1 for driving the spray bar assembly 1 into the cavitation water tank 2 and the long projectile 3. The volume calculation formula of the cavitation water tank 2 satisfies v≥v1 / 2+v2*1 / 3, where v1 is the volume of the projectile to be treated and v2 is the maximum flow rate of the high-pressure water of the spray bar.

[0029] As a preferred structure, Figure 1 As shown, the spray boom assembly 1 comprises a spray boom 10, a base 11, and a mounting base 12. The mounting base 12 is mounted on top of the base 11. The spray boom 10 extends through the mounting base 12. The water inlet of the spray boom 10 can be connected to a high-pressure water pipe 21, and the water outlet of the spray boom 10 can enter the cavitation water tank 2 through a guide hole 20 in the side wall of the cavitation water tank 2. The water outlet of the spray boom 10 is equipped with a cavitation nozzle (not shown). Driven by the traveling mechanism 8, the spray boom assembly 1 enters the cavitation water tank and continues to advance into the elongated projectile 3. The cavitation jet dislodges the explosive, separating the shell from the charge, thereby recovering the high-value shell. In specific implementation, the water sprayed by the spray boom 10 has a temperature of ≤45°C and a pressure of ≤25 MPa. The travel speed is controlled between 0 and 10 mm / s, and the rotation speed is between 0 and 10 r / min.

[0030] In specific manufacturing, the mounting base 12 is equipped with a rotating component for driving the spray boom 10. This rotating component includes a first motor 13 and a gear train (not shown). The gear train comprises a meshing driving gear and a driven gear. The motor is coaxially mounted with the driving gear 13, and the driven gear is securely mounted on the outer wall of the spray boom. Using the first motor to drive the spray boom ensures uniform water flow contact with the charge, preventing concentrated water flow from eroding the inner wall of the housing.

[0031] Further optimize the above scheme, such as Figure 4As shown, the mounting base 12 slides with the spray boom 10, and the spray boom 10 and mounting base 12 are connected via a pressure sensor 23 and a buffer spring 24. The pressure sensor 23 can be linked to the travel mechanism 8. The buffer spring has a preload of ≥100 kgf. The pressure sensor 23 and buffer spring 24 form an anti-collision mechanism. When the spray boom encounters an unstripped charge, the charge exerts a reaction force on the spray boom. The elastic feedback of the buffer spring ensures that the spray boom does not collide with the loaded charge surface. When the pressure detected by the pressure sensor exceeds the upper limit, feedback is provided to the travel mechanism via the pressure sensor, automatically controlling the spray boom to retreat.

[0032] When making specific Figure 4 As shown, a spray rod hole for slidingly engaging with the spray rod 10 is provided on the upper portion of the mounting base 12, and a spring hole for passing a buffer spring 24 is provided on the lower portion. A baffle 25 is provided at one end of the outer side of the base 11, and a pressure sensor 23 is mounted on the inner side of the baffle 25. One end of the buffer spring 24 is connected to the pressure sensor 23, and the other end passes through the spring hole and is connected to a push plate 26. The upper end of the push plate 26 is connected to the spray rod 10. At the same time, an upright guide rod 27 is provided at the rear end of the spray rod 10, and long strip grooves are provided on the top of the baffle 25 and the base 11, respectively, to provide space and guidance for the guide rod 27 and the push plate 26 to move forward and backward.

[0033] In a specific embodiment of the present invention, Figure 2 、 3 As shown, the traveling mechanism 8 is connected to the bottom of the base 11 and includes traveling wheels (not shown), a second motor 14, and a drag chain 6. The second motor 14 drives the traveling wheels to move on the guide rail 7, and the second motor 14 is connected to the power supply via the drag chain 6. Simultaneously, rollers and a drive wheel (not shown) are provided at the bottom of the cavitation water tank 2. The drive wheel moves the cavitation water tank relative to the elongated projectile, allowing the end of the elongated projectile to enter the cavitation water tank. A support plate 9 is provided on top of the traveling wheels and rollers. The support plate 9 slides with the guide rail 7 via the traveling wheels and rollers. The spray boom assembly 1 and the cavitation water tank 2 are both mounted on the support plate 9. Once the elongated projectile is secured within the cavitation water tank, it no longer moves. Subsequently, the support plate 9, driven by the second motor 14, can drive the upper spray boom assembly 1 and the cavitation water tank 2 to move back and forth along the length of the guide rail 7. An eccentric roller is installed between the support plate and the guide rail. Multiple rollers and the eccentric roller are used together to adjust the preload between the rollers and the guide rail at any time to ensure smooth operation. The load capacity of a single roller is ≥50 kN. The roller guide is composed of multiple rollers, eccentric rollers, and the guide rail. Its operating principle is the same as that of conventional roller guides.

[0034] When designing specifically, Figure 1As shown, the lifting mechanism 4 comprises two devices, one located near each end of the elongated projectile 3. These mechanisms include a support base 15, a lifting component 16, and a lifting slot 17. The support base 15 is connected to the lifting slot 17 via the lifting component 16. A position sensor (not shown) is mounted on the outer wall of the elongated projectile 3, which is linked to the lifting component 15. The lifting component can be raised and lowered using a servo motor-driven ball screw. The position sensor measures and adjusts the height of the elongated projectile raised by the lifting mechanism, ensuring that the projectile being treated is aligned with the centerline of the spray boom assembly. Mechanical locating pins are also installed on the lifting slot to detect the projectile's installation position.

[0035] When making specific Figure 2 、 3 As shown, the cavitation water tank 2 is made of 316L stainless steel. A discharge pipe 18 is provided at the bottom of the cavitation water tank 2, the outlet of which is located above the inlet of the collection box 5. A filter screen 19 is provided above the collection box 5. The filter screen 19 has a mesh diameter of ≤5mm and an effective loading capacity of ≥0.25m³. This structure enables coarse filtration and collection of the charge.

[0036] To further optimize the above solution, both the first motor and the second motor are servo motors; at the same time, a water level detection sensor is provided in the cavitation water tank; the position sensor, water level detection sensor and all servo motors are connected to the controller, and the drug removal process can be automatically completed through the remote control system, further improving the safety factor and work efficiency of the drug removal.

[0037] The utility model is suitable for the charge removal processing of engines and warheads with a projectile diameter of less than 300mm and a projectile length of less than 4000, with a maximum processing capacity of 110kg / h and high processing efficiency. It adopts cavitation jet to carry out charge erosion, and the cavitation jet pressure is ≤25MPa. The processing is carried out by a two-way charge removal method at both ends, which not only meets the production capacity requirements but also ensures the safety of the processing process.

[0038] The specific application process of this utility model is as follows:

[0039] (1) With manual assistance, the long-range rocket engine body is placed on the lifting mechanism. The lifting mechanism starts to rise under the drive of the servo motor and lifts the body to the height of the clamping position. The cavitation water tank pushes the long body on the lifting mechanism into the clamping port of the cavitation water tank under the drive of the servo motor. The thrust makes the front of the body fit tightly with the sealing ring of the clamping port. After the body contacts the mechanical positioning pin, the body is clamped.

[0040] (2) The spray bar in the spray bar assembly starts to rotate at a constant speed of 5 r / min under the drive of the first motor. At this time, the high-pressure water valve opens, and high-pressure water enters the spray bar. The high-pressure water pressure is maintained at 23 MPa for water spraying;

[0041] (3) A water level detection device is installed in the cavitation water tank, which feeds back the water level to the controller and controls the opening of the lower gate of the cavitation water tank, thereby adjusting the water level in the cavitation water tank to ensure that the projectile is submerged in water. When the water level is below the lower limit, the gate is closed. When the water level is above the upper limit, the gate is fully opened. When the water level is between the upper and lower limits, the gate is half open to maintain the balance of water inflow and outflow and maintain the water level.

[0042] (4) When the water level in the cavitation water tank is above the projectile, the spray rod starts to move forward slowly at a speed of 3 mm / s driven by the motor. During the propulsion process, the high-pressure water flow gradually peels off the medicine column in the projectile into small pieces, which then flow into the cavitation water tank with the water flow and flow into the collection box below through the discharge pipe. The filter can filter out large particles of medicine to prevent the medicine blocks from clogging the pipeline. The filtered water and medicine particles are recycled.

[0043] (5) During the advancement of the spray boom, if the advancement speed is too fast and the spray boom hits an unpeeled medicine column, the medicine column will give the spray boom a reaction force through the buffer spring, which will be fed back to the servo motor through the pressure sensor, automatically controlling the spray boom to retreat. This process will be repeated for about 3 to 4 hours until the medicine column in the projectile is completely peeled off, the spray boom stops passing high-pressure water, and retreats to its initial position.

[0044] (6) After the medicine is removed, the discharge valve of the cavitation water tank is opened to release the liquid. After the liquid is released, the cavitation water tank and the spray rod are retreated and the empty bomb can be taken out.

[0045] In summary, the present invention adopts a two-end charge removal method. Except for the loading operation, which requires manual assistance, all other processes are completed through a remote control system, resulting in high processing efficiency. During the charge removal process, the projectile is submerged in water, which reduces safety risks. The charge removal water can be recycled after being filtered through a filter, improving the environmental friendliness of the process. At the same time, the charge and the shell can be separated by erosion when the water pressure is ≤25MPa, which is safer than other treatment methods. The feed of the charge removal process is achieved by controlling the movement of the spray boom through a controller, which can significantly improve the charge removal efficiency. The present invention is suitable for bidirectional charge removal of long projectiles, has high safety performance, is conducive to the recycling of the shell and charge, and reduces resource waste.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A bidirectional hydraulic cavitation device for long projectiles, characterized by: It includes a lifting mechanism for supporting a long projectile, and a cavitation water tank and a spray rod assembly are respectively provided at both ends of the long projectile. The cavitation water tank is used to fix the end of the long projectile and provide a water immersion space for the long projectile. The spray rod assembly is used to spray high-pressure water to the internal charge of the long projectile entering the cavitation water tank; a collection box is provided on the side of the cavitation water tank.

2. A bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 1, characterized in that: The cavitation water tank and the spray rod assembly are both arranged on the guide rail, the long projectile is arranged directly above the guide rail and coaxial with the spray rod of the spray rod assembly, the bottom of the cavitation water tank is provided with a driving wheel driven by a driving component, which is used to drive the end of the long projectile into the clamping port of the cavitation water tank and seal it; the bottom of the spray rod assembly is provided with a walking mechanism, which is used to drive the spray rod assembly into the cavitation water tank and the long projectile.

3. A bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 2, characterized in that: The spray rod assembly includes a spray rod, a base and a mounting seat. The mounting seat is arranged on the top of the base. The spray rod is arranged through the mounting seat. The water inlet end of the spray rod can be connected to a high-pressure water pipe. The water outlet end of the spray rod can pass through the guide hole on the side wall of the cavitation water tank and enter the cavitation water tank. The water outlet end of the spray rod is provided with a cavitation nozzle.

4. A bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 3, characterized in that: A rotating component is provided in the mounting seat for driving the spray rod to rotate.

5. The bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 3, characterized in that: The mounting seat is in sliding cooperation with the spray rod, and a pressure sensor and a buffer spring are provided between the spray rod and the mounting seat; the pressure sensor can be linked with the walking mechanism.

6. The bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 3, characterized in that: The walking mechanism includes a walking wheel, a second motor and a drag chain. The second motor drives the walking wheel to move on the guide rail, and the second motor is connected to the power supply through the drag chain.

7. The bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 1, characterized in that: There are two lifting mechanisms, which are respectively arranged near the two ends of the long elastic body. The lifting mechanism includes a support seat, a lifting component and a lifting slot. The support seat is connected to the lifting slot through the lifting component. A position sensor that can be linked with the lifting component is provided on the outer wall of the long elastic body.

8. The bidirectional hydraulic cavitation device for removing explosives from a long projectile according to claim 1, characterized in that: A discharge pipe is provided at the bottom of the cavitation water tank, and the outlet of the discharge pipe is arranged above the inlet of the collection box; a filter is provided on the upper part of the collection box, and the mesh diameter of the filter is ≤5mm.

9. The bidirectional hydraulic cavitation drug removal device suitable for long projectiles according to claim 1, characterized in that: The cavitation water tank is made of 316L stainless steel, and the water temperature sprayed by the spray bar assembly is ≤45°C and the water pressure is ≤25MPa.

10. A bidirectional hydraulic cavitation device for removing explosives from a long projectile according to any one of claims 1 to 9, characterized in that: The length of the long elastic body is ≤4000mm and the outer diameter is ≤300mm.

Images