Lever-type pressurized charge device

Abstract

The application provides a lever type extrusion charging device, which comprises a warhead end cover, a filling barrel and a filling barrel mounting flange arranged on the warhead end cover, a filling chamber in the filling barrel, and a pressing block arranged in the filling chamber; a buffer piston and a piston mounting flange are mounted on the top of the pressing block, and a plurality of buffer springs are arranged below the buffer piston; a support rod is arranged on the filling barrel mounting flange, a lever is rotatably mounted on the support rod, a connecting rod is movably mounted on the buffer piston, and the lever passes through a connecting rod through hole in the top of the connecting rod. The gelatinized solid-liquid phase mixed fuel is filled into the filling barrel, and then the gelatinized solid-liquid phase mixed fuel is extruded into the shell through the pressing block. In the charging process, the flow distance of the fuel is greatly reduced, the extrusion charging force is reduced, the combustion accident caused by the heat generated by the extrusion of the fuel is avoided, and the safety is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of drug loading devices, and relates to a compression drug loading device, particularly a lever-type compression drug loading device. Background Technology

[0002] The bulk detonation warhead is filled with high-energy fuel. Driven by the explosive detonation, the high-energy fuel is ejected into the air. The high-energy fuel mixes with the air to form a large-scale active cloud. After a secondary detonation by the explosive, the active cloud produces a bulk detonation, releasing a powerful shock wave. It is one of the most powerful weapons.

[0003] The high-energy fuel inside the bulk-detonation warhead is a solid-liquid mixture. Due to the different densities of its components—the solid phase being denser and the liquid phase less dense—the mixture will stratify under gravity. The denser material will sink to the bottom, while the less dense material will rise to the top. Once stratified, the components cannot participate in the subsequent cloud detonation in the predetermined proportions, reducing the warhead's power. Furthermore, the warhead's center of mass shifts significantly, severely affecting its trajectory accuracy.

[0004] To address the issue of stratification in solid-liquid mixtures under gravity, a gelling agent is added during the mixing process of high-energy fuels. This causes the high-energy fuels to gel, resulting in a gelled solid-liquid mixture. The gelled state is viscous, with different components bound together, preventing sedimentation despite their different densities.

[0005] After the high-energy fuel is mixed in the stirring equipment, it is loaded into the bulk detonation warhead (warhead radius 140 mm, charge port diameter 30 mm) through a hose. The gelled solid-liquid phase fuel mixture has a very high viscosity, resulting in significant flow resistance in the hose. Chen Wen et al. reported in their literature that, under the premise of a constant flow velocity at the pipe outlet, the pressure at the pipe inlet increases with increasing fluid viscosity, and the pressure at the pipe inlet also increases with increasing pipe length. Due to the significant increase in viscosity after gelation of the solid-liquid mixture, an extremely high extrusion pressure needs to be applied at the inlet to ensure the smooth entry of the gelled solid-liquid phase fuel mixture into the warhead casing. Under excessive extrusion pressure, the fuel will generate excessive heat, which can easily cause combustion accidents. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the present invention aims to provide a lever-type extrusion charging device that solves the technical problem in existing technologies where excessive heat is generated under excessive extrusion pressure when filling gelled solid-liquid phase mixed fuels, which can easily ignite the gelled solid-liquid phase mixed fuels.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A lever-type compression charging device includes a warhead end cap. A charging cartridge and a charging cartridge mounting flange are sequentially arranged from top to bottom on the top surface of the warhead end cap. The charging cartridge and the charging cartridge mounting flange are integrated, and the charging cartridge mounting flange is detachably mounted on the warhead end cap. The top and bottom of the charging cartridge are open, and the charging cartridge is located directly above the warhead inlet. The space inside the charging cartridge is a charging chamber, which is connected to the interior of the warhead through the warhead inlet. A compression block is movably arranged inside the charging chamber.

[0009] The compression block consists of an integrated piston mounting section and a compression section, arranged from top to bottom. A piston mounting groove is formed in the top of the piston mounting section, and a buffer piston and a piston mounting flange are arranged sequentially from top to bottom within the piston mounting groove. The buffer piston and piston mounting flange are integrated and can move up and down within the piston mounting groove as a whole. The piston mounting flange is secured within the piston mounting groove, and the buffer piston can extend from the top of the compression block. Multiple buffer springs are installed in the piston mounting groove below the buffer piston. The bottom ends of the buffer springs are fixedly connected to the piston mounting section, and the top ends of the buffer springs are pressed against the bottom surface of the buffer piston.

[0010] A support rod is provided on the lateral side of the filling cylinder mounting flange. The bottom end of the support rod is fixedly connected to the edge of the filling cylinder mounting flange. One end of the lever is rotatably mounted on the top of the support rod, and the other end of the lever extends upward at an angle. The bottom of the connecting rod is movably mounted on the top of the buffer piston. A connecting rod through hole is opened on the top of the connecting rod, and the lever passes through the connecting rod through hole.

[0011] The present invention also has the following technical features:

[0012] The filling cartridge mounting flange has integrally formed filling cartridge mounting flange protrusions on both longitudinal sides. Each filling cartridge mounting flange protrusion is equipped with at least one guide rod. The bottom end of the guide rod is fixedly installed on the filling cartridge mounting flange, and the top end of the guide rod is set upward in the vertical direction. The piston mounting flange has integrally formed piston mounting flange protrusions on both longitudinal sides. Each piston mounting flange protrusion has at least one guide hole. The number of guide holes is equal to the number of guide rods and they correspond one-to-one. The guide rods pass through the guide holes.

[0013] The ratio of the inner diameter of the warhead inlet to the height of the charging cartridge is 1:(2-3).

[0014] The number of buffer springs is 16 to 24.

[0015] The warhead end cap and the propellant cartridge mounting flange are provided with flange mounting holes on both sides, and bolts are installed in the flange mounting holes.

[0016] The vertical cross-section of the compression section is an inverted trapezoidal structure.

[0017] Compared with the prior art, the present invention has the following technical effects:

[0018] This invention involves loading gelled solid-liquid phase mixed fuel into a filling cartridge, and then using a pressing block to squeeze the gelled solid-liquid phase mixed fuel into the shell. During the filling process, the flow distance of the fuel is greatly reduced, which also reduces the force of the extrusion, thus avoiding combustion accidents caused by the heat generated by the extrusion of the fuel and improving safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a lever-type compression charging device.

[0020] Figure 2 This is a top view of a lever-type compression charging device.

[0021] The meanings of the labels in the diagram are as follows: 1-Warhead end cap, 2-Warhead inlet, 3-Powder cartridge, 4-Powder cartridge mounting flange, 5-Powder chamber, 6-Pressure block, 7-Buffer piston, 8-Piston mounting flange, 9-Buffer spring, 10-Support rod, 11-Lever, 12-Connecting rod, 13-Connecting rod through hole, 14-Guide rod, 15-Guide hole, 16-Bolt.

[0022] 601-Piston mounting part, 602-Pressure part, 603-Piston mounting groove.

[0023] The specific content of the present invention will be further explained in detail below with reference to the embodiments. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, all components and fuels in this invention are those known in the art. For example, the gelled solid-liquid phase mixed fuel uses conventional gelled solid-liquid phase mixed fuels known in the prior art.

[0025] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0026] Example 1:

[0027] This embodiment provides a lever-type compression charging device, such as... Figure 1As shown, it includes a warhead end cap 1, which is the end cap of a bulk detonation warhead. The warhead end cap 1 has a circular plate-like structure, and a warhead inlet 2 is provided at the center of the warhead end cap 1. On the top surface of the warhead end cap 1, from top to bottom, there are a charging cartridge 3 and a charging cartridge mounting flange 4. The charging cartridge 3 and the charging cartridge mounting flange 4 are integrated and can be detachably installed on the warhead end cap 1. The top and bottom of the charging cartridge 3 are open. The charging cartridge 3 is located directly above the warhead inlet 2. The space inside the charging cartridge 3 is a charging chamber 5. The charging chamber 5 is connected to the interior of the warhead through the warhead inlet 2. A press block 6 is movably installed inside the charging chamber 5.

[0028] The compression block 6 consists of an integrated piston mounting part 601 and a compression part 602, arranged from top to bottom. A piston mounting groove 603 is provided in the top of the piston mounting part 601. A buffer piston 7 and a piston mounting flange 8 are arranged from top to bottom in the piston mounting groove 603. The buffer piston 7 and the piston mounting flange 8 are integrated and can move up and down in the piston mounting groove 603 as a whole. The piston mounting flange 8 is fitted into the piston mounting groove 603, and the buffer piston 7 can extend out from the top of the compression block 6. Multiple buffer springs 9 are provided in the piston mounting groove 603 below the buffer piston 7. The bottom end of the buffer spring 9 is fixedly connected to the piston mounting part 601, and the top end of the buffer spring 9 is pressed against the bottom surface of the buffer piston 7.

[0029] A support rod 10 is provided on one side of the filling cylinder mounting flange 4. The bottom end of the support rod 10 is fixedly connected to the edge of the filling cylinder mounting flange 4. One end of the lever 11 is rotatably mounted (e.g., hinged) on the top end of the support rod 10. The other end of the lever 11 extends upward at an angle. The bottom of the connecting rod 12 is movably mounted on the top end of the buffer piston 7. A connecting rod through hole 13 is opened on the top of the connecting rod 12. The lever 11 passes through the connecting rod through hole 13, and the connecting rod 12 and the lever 11 can move relative to each other.

[0030] As one specific solution in this embodiment, such as Figure 2 As shown, the longitudinal sides of the filling cartridge mounting flange 4 are integrally provided with filling cartridge mounting flange protrusions. Each filling cartridge mounting flange protrusion is equipped with at least one guide rod 14. The bottom end of the guide rod 14 is fixedly installed on the filling cartridge mounting flange 4, and the top end of the guide rod 14 is set upward in the vertical direction. The longitudinal sides of the piston mounting flange 8 are integrally provided with piston mounting flange protrusions. Each piston mounting flange protrusion is provided with at least one guide hole 15. The number of guide holes 15 is equal to the number of guide rods 14 and they correspond one-to-one. The guide rods 14 can pass through the guide holes 15.

[0031] In one specific embodiment, there are four guide rods 14 and four guide holes 15, arranged symmetrically in pairs. In this embodiment, the guide rods 14 and guide holes 15 are used to limit and guide the movement of the compressed drug block 6.

[0032] As a specific embodiment, the ratio of the inner diameter of the warhead inlet 2 to the height of the charging cartridge 3 is 1:(2-3). If the height of the charging cartridge 3 is too large, the fuel flow distance increases, and the force required also increases. Excessive force on the fuel can easily cause it to be squeezed into the gap between the charging cartridge 3 and the press block 6. Once squeezed in, it is subject to strong friction and is prone to overheating and combustion, leading to an accident. If the height of the charging cartridge 3 is too small, too little fuel is loaded each time, resulting in low efficiency and wasted time. Through extensive experiments, this invention has found that when the ratio of the diameter of the first circular hole of the warhead end cap 1 to the height of the charging cartridge 3 is 1:2-3, it avoids danger while ensuring that the amount of fuel loaded each time is sufficient and the efficiency is high enough to meet the usage requirements.

[0033] In one specific embodiment, the number of buffer springs 9 is 16. If the number of buffer springs 9 is too large, the total force generated by the buffer springs 9 will be too great, weakening the buffering effect and still subjecting the fuel to excessive force, making it impossible to avoid danger. If the number of buffer springs 9 is too small, the rigidity of the buffer springs 9 will be too poor, requiring each buffer spring 9 to move a large distance downwards to transmit the force of the charge. Most of the effect generated by the downward movement of the lever 11 will be consumed by the deformation of the buffer springs 9, significantly reducing the effect of driving the fuel downwards, resulting in wasted work and reduced efficiency. To determine the number of buffer springs 9, this invention, through some theoretical calculations, convened a group of experienced personnel for discussion, and decomposed the above problems, conducting experimental evaluations of each module separately. Ultimately, it was concluded that when the number of buffer springs 9 is 16 to 24, all the above problems can be avoided, the design advantages of this invention can be fully realized, the function of this invention can be fully utilized, and the problem can be completely solved using this invention.

[0034] As a specific embodiment, the warhead end cap 1 and the propellant cartridge mounting flange 4 are provided with flange mounting holes on both sides of the lateral direction. Bolts 16 are installed in the flange mounting holes. The warhead end cap 1 and the propellant cartridge mounting flange 4 can be detachably installed through the flange mounting holes and bolts 16.

[0035] As a specific embodiment, the vertical cross-section of the compression section 602 is an inverted trapezoidal structure. This structure ensures both sufficient charge amount each time and sufficient compressive force.

[0036] As a specific and optional solution in this embodiment, a limit block is detachably installed at the top of the guide rod 14 to prevent the guide rod 14 from coming out of the guide hole 15 during the pressing process.

[0037] The method of using the lever-type compression charging device of the present invention specifically includes the following steps:

[0038] Step 1, Device Assembly:

[0039] Mount the charging cartridge flange 4, the charging cartridge 3, and the support rod 10 as a whole onto the warhead end cap 1; assemble the press block 6 with the charging cartridge 3; assemble the press block 6 with the buffer piston 7; assemble the buffer piston 7 with the connecting rod 12; pass the lever 11 through the connecting rod 12, and then mount the lever 11 onto the support rod 10.

[0040] Step 2, fuel filling:

[0041] The gelled solid-liquid phase mixed fuel is loaded into the charge cartridge 3. The lever 11 is rotated clockwise. The lever 11 exerts a downward force on the connecting rod 12. The connecting rod 12 exerts a downward force on the buffer piston 7. The buffer piston 7 exerts a downward force on the pressure block 6. The pressure block 6 squeezes the gelled solid-liquid phase mixed fuel downward. The fuel is squeezed into the interior of the bulk detonation warhead shell through the warhead inlet 2.

[0042] The working principle of the lever-type compression charging device of the present invention is as follows:

[0043] Due to their high viscosity, gelled solid-liquid mixed fuels experience significant flow resistance in pipelines. Conventional methods require applying immense extrusion pressure at the pipeline inlet. On one hand, the pipeline needs to be flexible and is often made of non-metallic materials; excessive extrusion pressure can easily cause it to crack, leading to danger. On the other hand, excessive extrusion pressure can also cause the fuel to generate heat, resulting in excessively high temperatures and combustion accidents. This invention is directly installed at the upper end of the propellant loading port. The fuel is placed into the propellant cartridge 3, and extrusion forces the fuel into the warhead, significantly shortening the delivery distance, reducing extrusion pressure, avoiding excessively high temperatures and combustion, and ensuring safety.

[0044] During the process of forcing fuel into the warhead casing, the cartridge 3 remains stationary. The pressure block 6, guided by the guide rod 14, can only move up and down. Moving the pressure block 6 downwards forces fuel into the casing, while moving it upwards opens the upper end of the cartridge 3 for continued fuel loading. The downward force of the buffer piston 7 is transmitted through the buffer spring 9. When the buffer piston 7 moves upwards, it pulls the pressure block 6 upwards. One end of the connecting rod 12 is rotatably connected to the buffer piston 7, and the other end passes through the lever 11. The purpose is that when the lever 11 rotates clockwise, its right end moves downwards, causing the lever 11 to drive the connecting rod 12 downwards. The connecting rod 12 then drives the buffer piston 7 downwards. Although the relative positions of the buffer piston 7, connecting rod 12, and lever 11 change when the buffer piston 7 moves downwards, this does not affect the transmission of the downward force. The connecting rod 12 can move relative to the lever 11 without affecting the transmission of the downward force, and it can rotate relative to the buffer piston 7 without affecting the transmission of the downward force. Because the right end of lever 11 is longer, a downward force is applied to lever 11 by hand, and this force is transmitted to the fuel, causing the fuel to move downward. Due to the lever principle, the lever arm of the force applied by hand is longer, while the lever arm of the downward force applied to the fuel is shorter. The hand can apply a smaller force to produce a larger loading force.

[0045] Because fuel is quite sensitive, excessive heat generated in a localized area can lead to combustion. Furthermore, the fuel contains solid materials that can easily become stuck in small gaps. If excessive force is applied downwards to lever 11, the stuck area will experience intense compression, generating excessive heat and potentially leading to frictional heating and combustion, thus posing a danger. Therefore, the downward force transmitted by lever 11 should ideally have a buffering effect. If excessive resistance is encountered during downward movement, lever 11 can be raised to remove any small particles obstructing the downward movement of the compressed fuel block 6 before proceeding with further work.

[0046] To achieve this purpose, a buffer spring 9 is connected to the lower end face of the buffer piston 7. Thus, when the buffer piston 7 applies downward force to the pressurized fuel block 6, the force is transmitted through the spring, resulting in significant buffering and preventing excessive force. This ensures that the force on the fuel is relatively stable and uniform, preventing excessive force in any localized area and avoiding potential danger.

[0047] Verification of the effect of Example 1:

[0048] Ten lever-type extrusion charging devices of Example 1 were processed and used according to the method of use of the present invention. The entire process was detected by infrared light. The results showed that the highest temperature during the charging process did not exceed 60°C. This temperature would not cause a risk of fuel combustion and could ensure safety, indicating that the lever-type extrusion charging device of the present invention is effective.

[0049] Example 2:

[0050] This embodiment provides a lever-type compression charging device, which has a structure that is basically the same as that of Embodiment 1, except that the number of buffer springs 9 is 24.

[0051] Verification of the effect of Example 2:

[0052] Ten lever-type extrusion charging devices of Example 2 were processed and used according to the method of use of the present invention. The entire process was detected by infrared light. The results showed that the highest temperature during the charging process did not exceed 60°C. This temperature would not cause a risk of fuel combustion and could ensure safety, indicating that the lever-type extrusion charging device of the present invention is effective.

Claims

1. A lever-type compression charging device, comprising a warhead end cap (1), wherein a warhead inlet (2) is provided at the center of the warhead end cap (1); characterized in that: The top surface of the warhead end cap (1) is provided with a charging cartridge (3) and a charging cartridge mounting flange (4) from top to bottom. The charging cartridge (3) and the charging cartridge mounting flange (4) are integrated. The charging cartridge mounting flange (4) is detachably installed on the warhead end cap (1). The top and bottom of the charging cartridge (3) are open. The charging cartridge (3) is located directly above the warhead inlet (2). The space inside the charging cartridge (3) is the charging chamber (5). The charging chamber (5) is connected to the interior of the warhead through the warhead inlet (2). The charging chamber (5) is movably provided with a press block (6). The compression block (6) consists of an integrated piston mounting part (601) and a compression part (602) from top to bottom. A piston mounting groove (603) is provided in the top of the piston mounting part (601). A buffer piston (7) and a piston mounting flange (8) are arranged in the piston mounting groove (603) from top to bottom. The buffer piston (7) and the piston mounting flange (8) are integrated and can move up and down in the piston mounting groove (603) as a whole. The piston mounting flange (8) is fitted in the piston mounting groove (603). The buffer piston (7) can extend out from the top of the compression block (6). Multiple buffer springs (9) are provided in the piston mounting groove (603) below the buffer piston (7). The bottom end of the buffer spring (9) is fixedly connected in the piston mounting part (601), and the top end of the buffer spring (9) is pressed against the bottom surface of the buffer piston (7). A support rod (10) is provided on one side of the lateral side of the filling tube mounting flange (4). The bottom end of the support rod (10) is fixedly connected to the edge of the filling tube mounting flange (4). One end of the lever (11) is rotatably installed on the top end of the support rod (10), and the other end of the lever (11) extends upward at an angle. The bottom of the connecting rod (12) is movably installed on the top end of the buffer piston (7). A connecting rod through hole (13) is opened on the top of the connecting rod (12), and the lever (11) passes through the connecting rod through hole (13).

2. The lever-type compression charging device as described in claim 1, characterized in that, The longitudinal sides of the filling cartridge mounting flange (4) are integrally provided with filling cartridge mounting flange protrusions. Each filling cartridge mounting flange protrusion is equipped with at least one guide rod (14). The bottom end of the guide rod (14) is fixedly installed on the filling cartridge mounting flange (4), and the top end of the guide rod (14) is set upward along the vertical direction. The longitudinal sides of the piston mounting flange (8) are integrally provided with piston mounting flange protrusions. Each piston mounting flange protrusion is provided with at least one guide hole (15). The number of guide holes (15) is equal to the number of guide rods (14) and they correspond one-to-one. The guide rods (14) pass through the guide holes (15).

3. The lever-type compression charging device as described in claim 1, characterized in that, The ratio of the inner diameter of the warhead inlet (2) to the height of the charging cartridge (3) is 1:(2-3).

4. The lever-type compression charging device as described in claim 1, characterized in that, The number of buffer springs (9) is 16 to 24.

5. The lever-type compression charging device as described in claim 1, characterized in that, The warhead end cap (1) and the charging cartridge mounting flange (4) are provided with flange mounting holes on both sides, and bolts (16) are installed in the flange mounting holes.

6. The lever-type compression charging device as described in claim 1, characterized in that, The vertical cross-section of the pressing part (602) is an inverted trapezoidal structure.

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