CN209792774U - Portable metal part field energy-gathering type emergency thermal cutting device - Google Patents
Portable metal part field energy-gathering type emergency thermal cutting device Download PDFInfo
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- CN209792774U CN209792774U CN201920098296.3U CN201920098296U CN209792774U CN 209792774 U CN209792774 U CN 209792774U CN 201920098296 U CN201920098296 U CN 201920098296U CN 209792774 U CN209792774 U CN 209792774U
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Abstract
The utility model discloses a portable metal part field energy-gathering type emergency thermal cutting device, which comprises a medicine charging barrel, wherein a conical aluminum shaped medicine cover, an thermite layer and an igniter layer are sequentially arranged in the medicine charging barrel from bottom to top; the top end of the medicine charging barrel is provided with a top cover; the bottom of the liner is connected to the top surface of the bottom plate of the medicine barrel through an aluminum support sleeve or a baffle ring which is vertically arranged through a central axis or is connected to the radial inner peripheral surface of the middle part of the medicine barrel through the baffle ring; a through hole is formed in the center of the top cover, and an insulating plug is arranged in the through hole; two ignition electrodes are arranged in the center of the insulating plug and connected with an electric ignition device; a punching hole is arranged in the center of the bottom plate of the medicine charging barrel; the medicine charging barrel is provided with a fixing device for an object to be punched. The utility model discloses the combustion products that make the burning produce have carried out gathering can and carry out the directionality optimization through the shaped charge cover, can furthest utilize the cutting energy, have the power consumption low, characteristics that the cutting effect is good.
Description
Technical Field
The utility model relates to an emergent cutting field, in particular to metalwork field is gathered emergent hot cutting device of type.
Background
The emergency cutting is an important technology for emergency installation, emergency repair and forcible entry of field engineering equipment, and is also an essential technology in battlefield emergency repair. Statistics shows that the equipment parts are damaged in the field or battlefield, such as seizing, breaking, perforation and the like, and the service performance is influenced, and most of the damage needs to be quickly solved by adopting an emergency cutting method. The portable and safe emergency cutting method is also urgently needed in disaster emergency rescue such as earthquake, snow disaster, collapse, sunken ship and the like and daily fire rescue.
At present, the thermal cutting method commonly used in the field emergency repair is plasma cutting or gas cutting. Plasma cutting is a thermal cutting method for cutting by utilizing high-energy density, high-temperature and high-speed airflow, can cut various metals, but needs a high-power supply and heavy and expensive equipment, and severely restricts the flexibility and the maneuverability of rush repair when used in the field; gas cutting is a thermal cutting method for cutting carbon steel and low alloy steel, but can not effectively cut materials such as cast iron, stainless steel, nonferrous metals and the like, and needs gas storage equipment and the like. In recent years, technicians do a lot of work in the research and development of new combustible gases and the miniaturization of gas storage equipment, but no matter what combustible gases, liquids or other ignition modes are used, strong combustion improver oxygen or liquid oxygen cannot be separated, the miniaturization of an oxygen storage tank inevitably leads to frequent replacement of the storage tank, large-scale special gas or liquid filling equipment is inevitably required to be researched, and meanwhile, a high-pressure oxygen tank is extremely easy to damage or break in the environment of gunwoods for bullet rain and smoking fire, and is very dangerous. The manual self-propagating cutting method developed by the combustion synthesis technology based on the manual self-propagating welding technical result is a new field emergency cutting method without external energy and equipment, and the used cutting equipment is a combustion type cutting pen (stick) suitable for manual operation. Although the method can burn through cutting metal without power supply, gas source and equipment, the problems of low metal cutting efficiency, thin thickness, large and irregular cut width and the like are caused by low temperature, low jet speed, low energy density, high heat loss, low oxygen content and the like of jet flow generated by burning of the cutting pen (rod).
Cutting agents are often used for field cutting. The cutting agent adopts common exothermic agent. The heat generating agent is a mixture mainly composed of aluminum, oxide, nitrate and ferric oxide, and also usually contains other additives such as a binder, a filler and the like. The rapid combustion of the exothermic agent and the heat released during combustion have a decisive influence on its suitability. In addition, its thermal conductivity, melting temperature, etc. also affect its applicability. Thermite agents may also be employed. The thermite is a mixture of aluminum powder and a refractory metal oxide. The common thermite is a pink mixture (ratio of 1:2.95) prepared from aluminum powder and ferric oxide powder, and when ignited by an ignition agent, the reaction proceeds violently to obtain aluminum oxide and elementary iron and emit a large amount of heat, the temperature can reach 2500 ℃, and a brilliant light is emitted to melt the generated iron. Thermite is an important component of thermite reaction, and the thermite reaction plays an important role in high-temperature outdoor operations such as track welding. Can be used for initiating some reactions which need high temperature.
The portable solid cutting agent cutting technology is a new type steel structure punching or cutting technology, and its cutting equipment is formed from two portions of portable cutting gun and combustion type cutting bullet. During cutting, the combustion type cutting bullet is filled into the cutting gun, the cutting gun is held by hand to be aligned with the cutting piece, the primer of the cutting bullet is triggered, the primer ignites the ignition agent in the bullet, the ignition agent ignites the cutting agent to generate high-temperature metallurgical melt and high-pressure gas, the product is sprayed out after being subjected to energy gathering and compression through the nozzle, the steel structural part is locally melted and blown away by the high-pressure gas, and punching or cutting is achieved. The method can realize manual cutting of various metals such as carbon steel, alloy steel and the like. Because the high-temperature metallurgical melt and the high-pressure gas generated by combustion are sprayed out after being subjected to energy gathering and compression by the nozzle, the jet flow has high temperature, high jet flow speed, high energy density and low heat loss, and has the characteristics of large thickness of cut metal, high efficiency, wide application range, good use, storage and transportation safety and the like. Therefore, the novel metal member cutting method is suitable for manual operation, does not need an external power supply and an air source, is convenient to carry, simple to operate, safe and reliable, is an ideal technical means for quickly and thermally cutting metal in an emergency, and has very important significance for better and more quickly completing emergency repair and rescue and relief tasks under the field or battlefield conditions.
The patent with publication number CN108627058A applied by the inventor discloses a combustion-to-detonation energy-gathered explosion device, which comprises a high-pressure electric spark ignition device and an energy-gathered explosion device. The energy-gathering explosion device comprises a charge container and a shaped charge cover, wherein the charge container comprises a cylindrical charge container body and a top cover; the top cover is provided with an ignition electrode mounting hole; a shaped charge cover is arranged in the medicine-charging container body; an initiating explosive layer, an explosion transfer layer and a high explosive layer are sequentially arranged above the explosive cover in the explosive container body from top to bottom; the initiating explosive layer is sequentially provided with a mixed explosive layer, a bulk hexogen layer and hexogen columns from top to bottom, and the mixed explosive layer is a mixture of black powder, active metal powder and perchlorate. The mixed medicine layer is divided into an upper mixed medicine layer and a lower mixed medicine layer from top to bottom, and the density range of the upper mixed medicine layer is 0.5-0.7 g/cm3The density range of the lower layer of the mixed charging layer is 0.7-0.9 g/cm3(ii) a The volume ratio of the mixed explosive layer upper layer, the mixed explosive layer lower layer, the bulk hexogen layer and the hexogen grains is 1.5-2: 2-3.5: 5-6; the density of the hexogen grains is 1.2-1.4 g/cm3. Or the mixed charging layer comprises an outer layer of a circular ring cylindrical mixed charging layer and a layer embedded in the outer layer of the mixed charging layerThe density range of the inner layer of the cylindrical mixed charging layer and the outer layer of the mixed charging layer is 0.7-0.9 g/cm3The density of the inner layer of the mixed medicine layer ranges from 0.5 to 0.7g/cm3(ii) a The volume ratio of the mixed pesticide layer, the bulk hexogen layer and the hexogen columns is 3-3.5: 2-3.5: 5-6; the density of the hexogen grains is 1.2-1.4 g/cm3. The high-voltage electric spark ignition device comprises a power supply, a boosting device and two ignition electrodes, wherein the two ignition electrodes are arranged on an insulating plug, and the insulating plug is arranged on an ignition electrode mounting hole. The combustion-to-detonation energy-gathering explosion device can detonate safely and stably and generate effective energy-gathering jet flow, is suitable for micro-acoustic blasting and punching, and is cut by explosion of explosives which are high in danger in the using process and need to be operated remotely.
The invention discloses a combustion type cutting bullet for cutting a steel structural part, which is applied by the national institute of civil liberation force and military engineering, and the publication number of the patent is CN103182609A, wherein the combustion type cutting bullet consists of a bullet bottom, primer, a bullet shell, an ignition agent, a cutting agent and a nozzle; the thermite in the cutting agent is mainly thermite, accounts for 65-85% of the weight of the cutting agent, the gas-forming agent is mainly potassium nitrate, accounts for 5-25% of the weight of the cutting agent, and the slag-forming agent and the alloying agent account for 7-20% of the weight of the cutting agent. During cutting, the combustion type cutting bullet is filled into the cutting gun, the cutting gun is held by hand to be aligned with the cutting piece, the primer of the cutting bullet is triggered, the primer ignites the ignition agent in the bullet, the ignition agent ignites the cutting agent to generate high-temperature metallurgical melt and high-pressure gas, and a product is sprayed out after being subjected to energy gathering and compression through the nozzle to partially melt a steel structural part, so that cutting is realized. The cutting bullet is mainly used for rapid thermal cutting and underwater cutting of various steel structural members. The cutting bullet has the defects that the device contains an initiating explosive element primer with high sensitivity, unsafe factors exist in the storage and transportation processes, the device belongs to close-range operation cutting, and when a member to be cut is large, the cutting bullet cannot meet the cutting requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable metalwork field is gathered emergent hot cutting device of type to prior art not enough, solves and adopts the higher fire work component primer of sensitivity among the prior art, has unsafe factor in storing and the transportation, does not use remote operation, the directionality is poor, the high problem of power consumption.
The utility model adopts the technical proposal as follows.
Emergent hot cutting device of portable metalwork field energy-gathering type, its characterized in that: comprises a medicine charging barrel, wherein a conical aluminum shaped charge liner, a thermite layer and an igniter layer are sequentially arranged in the medicine charging barrel from bottom to top; the radial outer peripheral surface of the bottom of the shaped charge liner is tightly attached to the radial inner peripheral surface of the medicament barrel; the diameter of the bottom end of the liner is larger than that of the top end of the liner; the top end of the medicine charging barrel is provided with a top cover capable of sealing the opening at the top of the medicine charging barrel; an insulation plug mounting through hole is formed in the center of the top cover, and an insulation plug is mounted in the insulation plug mounting through hole; the longitudinal section of the insulating plug is in an inverted T shape, the cross section of the insulating plug mounting through hole and the cross section of the upper end of the insulating plug are both circular, and the upper end of the insulating plug is inserted into the insulating plug mounting through hole and is in threaded connection with the insulating plug mounting through hole; two ignition electrodes are arranged at the center of the insulating plug and connected with an electric ignition device; a punching hole is arranged in the center of the bottom plate of the medicine charging barrel; the medicine charging barrel is provided with a fixing device for an object to be punched.
The bottom of the shaped charge liner is connected to the top surface of the bottom plate of the medicine charging barrel through an aluminum support sleeve which is vertically arranged on the central axis; the central axis of the aluminum support sleeve coincides with the central axis of the explosive charging barrel, the radial outer peripheral surface of the bottom of the shaped charge liner is tightly attached with the radial inner peripheral surface of the explosive charging barrel, and the bottom surface of the shaped charge liner is connected with the top surface of the aluminum support sleeve, or,
The bottom of the shaped charge liner is connected to the radial inner peripheral surface of the middle part of the medicine charging barrel through a baffle ring; the radial outer peripheral surface of the bottom of the shaped charge liner is tightly attached to the radial inner peripheral surface of the medicament barrel; the baffle ring is arranged on the radial inner peripheral surface above the bottom plate of the medicine charging barrel, and the top surface of the baffle ring is parallel to the top surface of the bottom plate of the medicine charging barrel.
The portable metal piece field energy-gathering type emergency thermal cutting device comprises a medicine charging barrel, wherein a conical aluminum-made shaped charge cover, an thermite layer and an igniter layer are sequentially arranged in the medicine charging barrel from bottom to top, and the radial outer peripheral surface of the bottom of the shaped charge cover is tightly attached to the radial inner peripheral surface of the medicine charging barrel; the diameter of the bottom end of the liner is larger than that of the top end of the liner; the top end of the medicine charging barrel is provided with a top cover capable of sealing the opening at the top of the medicine charging barrel; an insulation plug mounting through hole is formed in the center of the top cover, and an insulation plug is mounted in the insulation plug mounting through hole; the insulating plug mounting through hole and the insulating plug are in frustum shapes with small upper parts and large lower parts; the insulating plug is in threaded connection with the insulating plug mounting through hole; two ignition electrodes are arranged in the center of the insulating plug and connected with an electric ignition device; a punching hole is arranged in the center of the bottom plate of the medicine charging barrel; the medicine charging barrel is provided with a fixing device for an object to be punched.
The bottom of the shaped charge liner is connected to the top surface of the bottom plate of the medicine charging barrel through an aluminum support sleeve which is vertically arranged on the central axis; the central axis of the aluminum support sleeve coincides with the central axis of the medicine charging barrel, the radial outer peripheral surface of the bottom of the shaped medicine cover is tightly pasted with the radial inner peripheral surface of the medicine charging barrel, and the bottom surface of the shaped medicine cover is connected with the top surface of the aluminum support sleeve, or the bottom of the shaped medicine cover is connected with the radial inner peripheral surface of the middle part of the medicine charging barrel through a baffle ring; the radial outer peripheral surface of the bottom of the shaped charge liner is tightly attached to the radial inner peripheral surface of the medicament barrel; the baffle ring is arranged on the radial inner peripheral surface above the bottom plate of the medicine charging barrel, and the top surface of the baffle ring is parallel to the top surface of the bottom plate of the medicine charging barrel.
As the preferred technical scheme, the fixing device for the object to be punched comprises a bottom cover arranged at the bottom end of the medicine charging barrel; the bottom cover is provided with a punching through hole, and the inner diameter of the punching through hole is gradually reduced from top to bottom; the top of the punching through hole is connected with the bottom of the punching hole, the diameter of the top of the punching through hole is the same as that of the bottom of the punching hole, and the central axes of the punching through hole and the punching hole are superposed with the central axis of the medicine charging barrel; an object insertion hole to be punched is horizontally arranged on the bottom cover and is intersected with the punching through hole; the medicine charging barrel is in threaded connection with the bottom cover.
As the preferred technical scheme, the inner peripheral surface of the medicine charging barrel is provided with a high-temperature resistant layer of the medicine charging barrel; the inner peripheral surface of the punched through hole is provided with a punched through hole high temperature resistant layer; the inner peripheral surface of the punching hole is provided with a punching hole high temperature resistant layer; the inner peripheral surface of the object insertion hole to be punched is provided with a high-temperature resistant layer of the object insertion hole to be punched.
According to the preferable technical scheme, the high-temperature resistant layer of the medicine charging barrel, the high-temperature resistant layer of the punched through hole, the high-temperature resistant layer of the punched hole and the high-temperature resistant layer of the object insertion hole to be punched are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite, a high-temperature resistant layer of the punched through hole made of ceramic or graphite, a high-temperature resistant layer of the punched hole made of ceramic or graphite and a high-temperature resistant layer of the object insertion hole to be punched made of ceramic or graphite.
As the preferred technical scheme, the fixing device for the object to be punched comprises a plurality of fixing lugs arranged on the radial outer peripheral surface of the bottom end of the charging barrel; the central axis of the punching through hole is coincided with the central axis of the medicine charging barrel.
As the preferred technical scheme, the inner peripheral surface of the medicine charging barrel is provided with a high-temperature resistant layer of the medicine charging barrel; the inner peripheral surface of the punched through hole is provided with a punched through hole high temperature resistant layer.
as a preferred technical scheme, the inner diameter of the punched through hole is gradually reduced from top to bottom; the high-temperature resistant layer of the medicine charging barrel and the high-temperature resistant layer of the punched through hole are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite and a high-temperature resistant layer of the punched through hole made of ceramic or graphite; the insulating plug is made of graphite or ceramic.
As the preferred technical scheme, the bottom surface of the charging barrel is provided with a groove for fixing a belt punching object; the fixing lug is provided with a magnet.
As a preferred technical scheme, two ignition electrode mounting holes are formed in the insulating plug, the two ignition electrodes are respectively mounted on the two ignition electrode mounting holes, and the bottom ends of the two ignition electrodes are close to the ignition agent layer; the center in the medicine charging barrel is vertically provided with a magnesium strip, the top end of the magnesium strip is positioned in the ignition agent layer, and the bottom end of the magnesium strip is positioned in the thermite layer.
The utility model has the advantages that: the liner props against the top plate, and when the pressure level generated by burning the cutting agent is greater than the supporting capacity of the liner, the liner is broken; and the high-temperature and high-pressure molten fluid is sprayed out along the punching holes to punch the object to be punched. Because the aluminum liner is used, fragments generated by crushing enter an object to be punched, secondary combustion can be carried out to continuously emit a large amount of heat, and the punching depth can be effectively improved. The utility model discloses the combustion products that make the burning produce have carried out gathering can and carry out the directionality optimization through the shaped charge cover, make the energy density of cutting obtain further improvement. The top cover, the medicine charging barrel, the bottom cover and the like can be detached and are convenient to carry. The cutting is mainly high temperature generated by combustion reaction of a high-heat agent in the cutting agent and molten metal of a high-temperature melt product of the high-heat agent, assisted by oxidation reaction of a large amount of peroxy gas generated by a gas-forming agent and steel for releasing heat and forming low-melting-point oxide, and the molten metal and slag are blown off under the action of continuous high-speed airflow to realize cutting, so that the cutting energy can be utilized to the maximum extent, and the cutting method has the characteristics of low energy consumption and good cutting effect. The utility model discloses the device burning synthesis reaction is fast, and energy density is big, and combustion temperature is high, and cutting pressure is big, and cutting rate is fast, does not use priming sytem and explosive moreover. The cutting tool is suitable for the rapid emergency thermal cutting and the underwater cutting of various steel structural parts under the conditions of no electricity, no air and no equipment in the field or battlefield.
Drawings
Fig. 1 is a schematic structural view of a preferred embodiment of the portable metal field energy-gathering emergency thermal cutting device of the present invention.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a partially enlarged view of a portion B of fig. 1.
Fig. 4 is a schematic view of the portable metal part field energy-gathering type emergency thermal cutting device shown in fig. 1 and a device to be cut.
Fig. 5 is a partially enlarged view of a portion C of fig. 4.
fig. 6 is a schematic view of the cutting agent layer of the energy focused type burst cutting apparatus of the field metal member of fig. 5 after combustion.
Fig. 7 is a schematic structural view of a preferred embodiment of the portable metal field energy-gathering emergency thermal cutting device of the present invention.
Fig. 8 is a partially enlarged view of a portion D of fig. 7.
Fig. 9 is a schematic view of the portable metal field energy-gathering type emergency thermal cutting device shown in fig. 7 connected with a device to be cut.
Fig. 10 is a partially enlarged view of a portion E of fig. 9.
Fig. 11 is a schematic structural view of a preferred embodiment of the portable metal field energy-gathering emergency thermal cutting device of the present invention.
Fig. 12 is a partially enlarged view of a portion F of fig. 11.
Fig. 13 is a schematic structural view of a explosive cartridge.
Fig. 14 is a schematic structural view of a preferred embodiment of the portable metal field energy-gathering emergency thermal cutting device of the present invention.
Fig. 15 is a partially enlarged view of a portion G of fig. 14.
Fig. 16 is a schematic structural view of a preferred embodiment of the portable metal field energy-gathering emergency thermal cutting device of the present invention.
Wherein: a medicine charging barrel-1; an aluminum support sleeve-2; a liner-3; thermite layer-4; igniter layer-5; a top cover-6; an insulation plug mounting through hole-7; an insulating plug-8; an ignition electrode-9; an electric ignition device-10; a bottom plate-11; punching a hole-12; a bottom cover-13; punching a through hole-14; inserting an object to be punched into the hole-15; high temperature resistant layer-16 of the medicine barrel; punching a through hole high temperature resistant layer-17; punching a hole high-temperature resistant layer-18; inserting an object to be punched into the hole-19; a fixing lug-20; a groove-21; magnesium strip-22; an object to be die-cut-23 baffle ring-25; a magnet-24; a steel wire rope-26; a wire-27.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1. As shown in fig. 1-6, the portable metal part field energy-gathering type emergency thermal cutting device is characterized in that: comprises a medicine charging barrel 1, wherein a conical aluminum shaped medicine cover 3, a thermite layer 4 and an ignition agent layer 5 are sequentially arranged in the medicine charging barrel 1 from bottom to top; the radial outer peripheral surface of the bottom of the liner 3 is tightly attached to the radial inner peripheral surface of the medicine barrel 1; the diameter of the bottom end of the liner 3 is larger than that of the top end thereof; the top end of the medicine charging barrel 1 is provided with a top cover 6 capable of sealing the top opening of the medicine charging barrel 1; an insulating plug mounting through hole 7 is vertically formed in the center of the top cover 6, and an insulating plug 8 is mounted in the insulating plug mounting through hole 7; the longitudinal section of the insulating plug 8 is in an inverted T shape, the cross section of the insulating plug mounting through hole 7 and the cross section of the upper end of the insulating plug 8 are both circular, and the upper end of the insulating plug 8 is inserted into the insulating plug mounting through hole 7 and is in threaded connection with the insulating plug mounting through hole 7; two ignition electrodes 9 are arranged at the center of the insulating plug 8, and the two ignition electrodes 9 are connected with an electric ignition device 10; a punching hole 12 is arranged in the center of a bottom plate 11 of the medicine charging barrel 1; the medicine barrel 1 is provided with a fixing device for an object to be punched.
The bottom of the liner 3 is connected to the radial inner peripheral surface of the middle part of the medicine charging barrel 1 through a baffle ring 25; the radial outer peripheral surface of the bottom of the liner 3 is tightly attached to the radial inner peripheral surface of the medicine barrel 1; the retainer ring 25 is provided on the radially inner peripheral surface above the bottom plate 11 of the explosive cartridge, and the top surface of the retainer ring 25 is parallel to the top surface of the bottom plate 11 of the explosive cartridge 1.
The fixing device for the object to be punched comprises a bottom cover 13 arranged at the bottom end of the medicine charging barrel 1; a punching through hole 14 is formed in the bottom cover 13, and the inner diameter of the punching through hole 14 gradually decreases from top to bottom; the top of the punching through hole 14 is connected with the bottom of the punching hole 12, the diameter of the top of the punching through hole 14 is the same as that of the bottom of the punching hole 12, and the central axes of the punching through hole 14 and the punching hole 12 are superposed with the central axis of the charging barrel 1; an object insertion hole 15 to be punched is horizontally formed in the bottom cover 13, and the object insertion hole 15 to be punched is intersected with the punching through hole 14; the medicine charging barrel 1 is connected with the bottom cover 13 through screw threads.
a high-temperature resistant layer 16 of the medicine charging barrel is arranged on the inner peripheral surface of the medicine charging barrel 1; a punched through hole high-temperature resistant layer 17 is arranged on the inner peripheral surface of the punched through hole 14; a punched hole high-temperature resistant layer 18 is arranged on the inner peripheral surface of the punched hole 12; the inner peripheral surface of the object-to-be-punched insertion hole 15 is provided with a high-temperature resistant layer 19. The object to be punched is a metal rod or a metal tube.
The high-temperature resistant layer 16 of the medicine charging barrel, the high-temperature resistant layer 17 of the punching through hole, the high-temperature resistant layer 18 of the punching through hole and the high-temperature resistant layer 19 of the object insertion hole to be punched are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite, a high-temperature resistant layer of the punching through hole made of ceramic or graphite and a high-temperature resistant layer of the object insertion hole to be punched made of ceramic or graphite.
The insulating plug 8 is an insulating plug 8 made of graphite or an insulating plug 8 made of ceramic.
Two ignition electrode mounting holes are formed in the insulating plug 8, two ignition electrodes 9 are respectively mounted in the two ignition electrode mounting holes, and the bottom ends of the two ignition electrodes 9 are close to the ignition agent layer 5; a magnesium strip 22 is vertically arranged in the center of the medicine charging barrel 1, the top end of the magnesium strip 22 is positioned in the ignition agent layer 5, and the bottom end of the magnesium strip 22 is positioned in the thermite layer 4.
The electric ignition device 10 is a high-voltage electric spark ignition device disclosed in the patent CN108627058A, and comprises a power supply, a voltage boosting device and a two-point ignition electrode, wherein the two-point ignition electrode is arranged on an insulating plug. The igniter layer 5 is a mixed charge layer disclosed in the patent CN108627058A, and the mixed charge layer is a mixture of black powder, active metal powder and perchlorate. The mixed medicine layer is divided into an upper mixed medicine layer and a lower mixed medicine layer from top to bottom, and the density range of the upper mixed medicine layer is 0.5-0.7 g/cm3The density range of the lower layer of the mixed charging layer is 0.7-0.9 g/cm3(ii) a A pit with an upward opening is arranged below the opening at the bottom end of the ignition electrode mounting hole on the top surface of the upper layer of the mixed medicine layer, and the two ignition electrodes are positioned in the pit; the volume ratio of the upper layer of the mixed medicine charging layer to the lower layer of the mixed medicine charging layer is 1:1. The mixed medicine layer is prepared from black powder, active metal powder, perchlorate and nitrocotton according to the mass ratio of 2.1:1.3: 1: 0.05 mixture mixed together. The cutting agent is the cutting agent disclosed in the patent with the publication number of CN 103182109A. The cutting agent consists of 8-12% of CuO (-200 meshes) and Fe2O345-50% of (-200 meshes), 18-22% of Al (-250 meshes), KNO310% -15% of (-100 mesh) CaCO3(-100 mesh) 2%, Al2O3(-150 mesh) 1.5% and Cr2O31.5 percent of (-200 meshes), 5 to 8 percent of Ni (-150 meshes), 1 percent of Ti (-100 meshes) and trace components. The materials are respectively ball-milled and sieved, dried for 2 hours at 120 ℃, uniformly mixed according to the proportion and molded into the cutting agent by a self-made molding machine. Through experiments, when the charging barrel is 120mm long and the outer diameter is 23mm, the bullet can cut a steel structural member with the thickness of 28 mm. Of course, conventional thermite of the prior art may also be employed in this embodiment.
The liner 3 props against the top plate 2, and when the pressure level generated by burning the cutting agent is greater than the supporting capacity of the liner 3, the liner 3 is broken; the high-temperature high-pressure molten fluid is sprayed out along the punching holes 13 to punch the object to be punched. Because of the aluminum liner 3, fragments generated by crushing enter an object to be punched, secondary combustion can be carried out to continuously emit a large amount of heat, and the punching depth can be effectively improved. The utility model discloses the combustion products that make the burning produce have carried out gathering can and carry out the directionality optimization through the shaped charge cover, make the energy density of cutting obtain further improvement. The top cover 6, the medicine charging barrel 1, the bottom cover 13 and the like can be detached, and the medicine charging barrel is convenient to carry. The cutting is mainly high temperature generated by combustion reaction of a high-heat agent in the cutting agent and molten metal of a high-temperature melt product of the high-heat agent, assisted by oxidation reaction of a large amount of peroxy gas generated by a gas-forming agent and steel for releasing heat and forming low-melting-point oxide, and the molten metal and slag are blown off under the action of continuous high-speed airflow to realize cutting, so that the cutting energy can be utilized to the maximum extent, and the cutting method has the characteristics of low energy consumption and good cutting effect. The utility model discloses the device burning synthesis reaction is fast, and energy density is big, and combustion temperature is high, and cutting pressure is big. The cutting tool is suitable for the rapid emergency thermal cutting and the underwater cutting of various steel structural parts under the conditions of no electricity, no air and no equipment in the field or battlefield.
Example 2. As shown in fig. 7-10. This embodiment is different from embodiment 1 in that: the bottom of the liner 3 is connected to the top surface of the bottom plate 11 of the medicine barrel 1 through an aluminum support sleeve 2 which is vertically arranged along the central axis; the axis of aluminium support sleeve 2 coincides with the axis of explosive cartridge 1, and the radial outer peripheral surface of the bottom of type cover 3 closely pastes the bottom surface of the radial inner peripheral surface of explosive cartridge 1 and type cover 3 and links to each other with the top surface of aluminium support sleeve 2.
the punched through-hole 14 has an inner diameter gradually decreasing from the top to the bottom.
Example 3. As shown in fig. 11-13. This embodiment is different from embodiment 1 in that: the bottom of the liner 3 is connected to the top surface of the bottom plate 11 of the medicine barrel 1 through an aluminum support sleeve 2 which is vertically arranged on the central axis; the central axis of the aluminum support sleeve 2 is superposed with the central axis of the medicine charging barrel 1; the radial outer peripheral surface of the bottom of the liner 3 is tightly pasted with the radial inner peripheral surface of the explosive barrel 1, and the bottom surface of the liner 3 is connected with the top surface of the aluminum support sleeve 2; the fixing device for the object to be punched comprises a plurality of fixing lugs 20 arranged on the radial peripheral surface of the bottom end of the medicine charging barrel 1; the central axis of the punching through hole 14 coincides with the central axis of the medicine charging barrel 1. The bottom surface of the medicine charging barrel 1 is provided with a groove 21 for fixing an object to be punched. The fixing lug 20 is connected to the object 23 to be blanked by means of a wire 26. The object to be punched is plate-shaped. The inner diameter of the die-cut hole 12 becomes gradually smaller from the top to the bottom.
Example 4. As shown in fig. 14-15. This embodiment is different from embodiment 1 in that: an insulating plug 8 is arranged in the insulating plug mounting through hole 7; the insulation plug mounting through hole 7 and the insulation plug 8 are in frustum shapes with small upper parts and large lower parts; the insulating plug 8 is in threaded connection with the insulating plug mounting through hole 7.
Example 5. As shown in fig. 16. This embodiment is different from embodiment 3 in that: the fixing lug 20 is provided with a magnet 24.
The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the relevant art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (18)
1. Emergent hot cutting device of portable metalwork field energy-gathering type, its characterized in that: comprises a medicine charging barrel (1), wherein a conical aluminum shaped medicine cover (3), an thermite layer (4) and an igniter layer (5) are sequentially arranged in the medicine charging barrel (1) from bottom to top; the radial outer peripheral surface of the bottom of the shaped charge liner (3) is tightly attached to the radial inner peripheral surface of the medicament barrel (1); the diameter of the bottom end of the liner (3) is larger than that of the top end thereof; the top end of the medicine charging barrel (1) is provided with a top cover (6) capable of sealing the top opening of the medicine charging barrel (1); an insulating plug mounting through hole (7) is formed in the center of the top cover (6), and an insulating plug (8) is mounted in the insulating plug mounting through hole (7); the longitudinal section of the insulating plug (8) is in an inverted T shape, the cross section of the insulating plug mounting through hole (7) and the cross section of the upper end of the insulating plug (8) are both circular, and the upper end of the insulating plug (8) is inserted into the insulating plug mounting through hole (7) and is in threaded connection with the insulating plug mounting through hole (7); two ignition electrodes (9) are arranged at the center of the insulating plug (8), and the two ignition electrodes (9) are connected with an electric ignition device (10); a punching hole (12) is arranged in the center of a bottom plate (11) of the medicine charging barrel (1); the medicine charging barrel (1) is provided with a fixing device for an object to be punched;
The bottom of the shaped charge liner (3) is connected to the top surface of a bottom plate (11) of the medicine charging barrel (1) through an aluminum support sleeve (2) which is vertically arranged on a central axis; the central axis of the aluminum support sleeve (2) is superposed with the central axis of the medicine charging barrel (1), the bottom surface of the shaped medicine cover (3) is connected with the top surface of the aluminum support sleeve (2), or,
The bottom of the shaped charge liner (3) is connected to the radial inner peripheral surface of the middle part of the medicine charging barrel (1) through a baffle ring (25); the baffle ring (25) is arranged on the radial inner peripheral surface above the bottom plate (11) of the medicine charging barrel, and the top surface of the baffle ring (25) is parallel to the top surface of the bottom plate (11) of the medicine charging barrel (1).
2. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 1, wherein: the fixing device for the object to be punched comprises a bottom cover (13) arranged at the bottom end of the medicine charging barrel (1); the bottom cover (13) is provided with a punching through hole (14), and the inner diameter of the punching through hole (14) is gradually reduced from top to bottom; the top of the punching through hole (14) is connected with the bottom of the punching hole (12), the diameter of the top of the punching through hole (14) is the same as that of the bottom of the punching hole (12), and the central axes of the punching through hole (14) and the punching hole (12) are superposed with the central axis of the medicine charging barrel (1); an object to be punched is inserted into the hole (15) horizontally arranged on the bottom cover (13), and the object to be punched is inserted into the hole (15) and is intersected with the punching through hole (14); the medicine charging barrel (1) is in threaded connection with the bottom cover (13).
3. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 2, wherein: a high temperature resistant layer (16) of the medicine charging barrel is arranged on the inner peripheral surface of the medicine charging barrel (1); a punched through hole high temperature resistant layer (17) is arranged on the inner peripheral surface of the punched through hole (14); a punching hole high temperature resistant layer (18) is arranged on the inner peripheral surface of the punching hole (12); the inner peripheral surface of the object insertion hole (15) to be punched is provided with a high temperature resistant layer (19) of the object insertion hole to be punched.
4. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 3, wherein: the high-temperature resistant layer (16) of the medicine charging barrel, the punching through hole high-temperature resistant layer (17), the punching hole high-temperature resistant layer (18) and the high-temperature resistant layer (19) of the object inserting hole to be punched are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite, a punching through hole high-temperature resistant layer made of ceramic or graphite, a punching hole high-temperature resistant layer made of ceramic or graphite and a high-temperature resistant layer of the object inserting hole to be punched made of ceramic or graphite.
5. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 1, wherein: the fixing device for the object to be punched comprises a plurality of fixing lugs (20) arranged on the radial outer peripheral surface of the bottom end of the medicine charging barrel (1); the central axis of the punching through hole (14) is superposed with the central axis of the medicine charging barrel (1).
6. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 5, wherein: a high temperature resistant layer (16) of the medicine charging barrel is arranged on the inner peripheral surface of the medicine charging barrel (1); the inner peripheral surface of the punched through hole (14) is provided with a punched through hole high temperature resistant layer (17).
7. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 6, wherein: the inner diameter of the punching through hole (14) is gradually reduced from top to bottom; the high-temperature resistant layer (16) of the medicine charging barrel and the high-temperature resistant layer (17) of the punched through hole are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite and a high-temperature resistant layer of the punched through hole made of ceramic or graphite; the insulating plug (8) is an insulating plug (8) made of graphite or an insulating plug (8) made of ceramic.
8. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 7, wherein: a groove (21) for fixing the punched object of the belt is arranged on the bottom surface of the medicine barrel (1); the fixing lug (20) is provided with a magnet (24).
9. the portable metal field energy concentrating emergency thermal cutting apparatus of claim 1, wherein: two mounting holes are formed in the insulating plug (8), two ignition electrodes (9) are respectively arranged in the two mounting holes, and the bottom ends of the two ignition electrodes (9) are close to the ignition agent layer (5); a magnesium strip (22) is vertically arranged in the medicine charging barrel (1), the top end of the magnesium strip (22) is positioned in the ignition agent layer (5), and the bottom end of the magnesium strip (22) is positioned in the thermite layer (4).
10. Emergent hot cutting device of portable metalwork field energy-gathering type, its characterized in that: the device comprises a medicine charging barrel (1), wherein a conical aluminum shaped medicine cover (3), an thermite layer (4) and an ignition agent layer (5) are sequentially arranged in the medicine charging barrel (1) from bottom to top, and the radial outer peripheral surface of the bottom of the shaped medicine cover (3) is tightly attached to the radial inner peripheral surface of the medicine charging barrel (1); the diameter of the bottom end of the liner (3) is larger than that of the top end thereof; the top end of the medicine charging barrel (1) is provided with a top cover (6) capable of sealing the top opening of the medicine charging barrel (1); an insulating plug mounting through hole (7) is formed in the center of the top cover (6), and an insulating plug (8) is mounted in the insulating plug mounting through hole (7); the insulation plug mounting through hole (7) and the insulation plug (8) are in frustum shapes with small upper parts and large lower parts; the insulating plug (8) is in threaded connection with the insulating plug mounting through hole (7); two ignition electrodes (9) are arranged at the center of the insulating plug (8), and the two ignition electrodes (9) are connected with an electric ignition device (10); a punching hole (12) is arranged in the center of a bottom plate (11) of the medicine charging barrel (1); the medicine charging barrel (1) is provided with a fixing device for an object to be punched;
The bottom of the shaped charge liner (3) is connected to the top surface of a bottom plate (11) of the medicine charging barrel (1) through an aluminum support sleeve (2) which is vertically arranged on a central axis; the central axis of the aluminum support sleeve (2) is superposed with the central axis of the medicine charging barrel (1), the bottom surface of the shaped medicine cover (3) is connected with the top surface of the aluminum support sleeve (2), or,
The bottom of the shaped charge liner (3) is connected to the radial inner peripheral surface of the middle part of the medicine charging barrel (1) through a baffle ring (25); the baffle ring (25) is arranged on the radial inner peripheral surface above the bottom plate (11) of the medicine charging barrel, and the top surface of the baffle ring (25) is parallel to the top surface of the bottom plate (11) of the medicine charging barrel (1).
11. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 10, wherein: the fixing device for the object to be punched comprises a bottom cover (13) arranged at the bottom end of the medicine charging barrel (1); the bottom cover (13) is provided with a punching through hole (14), and the inner diameter of the punching through hole (14) is gradually reduced from top to bottom; the top of the punching through hole (14) is connected with the bottom of the punching hole (12), the diameter of the top of the punching through hole (14) is the same as that of the bottom of the punching hole (12), and the central axes of the punching through hole (14) and the punching hole (12) are superposed with the central axis of the medicine charging barrel (1); an object to be punched is inserted into the hole (15) horizontally arranged on the bottom cover (13), and the object to be punched is inserted into the hole (15) and is intersected with the punching through hole (14); the medicine charging barrel (1) is in threaded connection with the bottom cover (13).
12. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 11, wherein: a high temperature resistant layer (16) of the medicine charging barrel is arranged on the inner peripheral surface of the medicine charging barrel (1); a punched through hole high temperature resistant layer (17) is arranged on the inner peripheral surface of the punched through hole (14); a punching hole high temperature resistant layer (18) is arranged on the inner peripheral surface of the punching hole (12); the inner peripheral surface of the object insertion hole (15) to be punched is provided with a high temperature resistant layer (19) of the object insertion hole to be punched.
13. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 12, wherein: the high-temperature resistant layer (16) of the medicine charging barrel, the punching through hole high-temperature resistant layer (17), the punching hole high-temperature resistant layer (18) and the high-temperature resistant layer (19) of the object inserting hole to be punched are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite, a punching through hole high-temperature resistant layer made of ceramic or graphite, a punching hole high-temperature resistant layer made of ceramic or graphite and a high-temperature resistant layer of the object inserting hole to be punched made of ceramic or graphite.
14. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 10, wherein: the fixing device for the object to be punched comprises a plurality of fixing lugs (20) arranged on the radial outer peripheral surface of the bottom end of the medicine charging barrel (1); the central axis of the punching through hole (14) is superposed with the central axis of the medicine charging barrel (1).
15. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 14, wherein: a high temperature resistant layer (16) of the medicine charging barrel is arranged on the inner peripheral surface of the medicine charging barrel (1); the inner peripheral surface of the punched through hole (14) is provided with a punched through hole high temperature resistant layer (17).
16. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 15, wherein: the inner diameter of the punching through hole (14) is gradually reduced from top to bottom; the high-temperature resistant layer (16) of the medicine charging barrel and the high-temperature resistant layer (17) of the punched through hole are respectively a high-temperature resistant layer of the medicine charging barrel made of ceramic or graphite and a high-temperature resistant layer of the punched through hole made of ceramic or graphite; the insulating plug (8) is an insulating plug (8) made of graphite or an insulating plug (8) made of ceramic.
17. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 16, wherein: a groove (21) for fixing the punched object of the belt is arranged on the bottom surface of the medicine barrel (1); the fixing lug (20) is provided with a magnet (24).
18. The portable metal field energy concentrating emergency thermal cutting apparatus of claim 1, wherein: two mounting holes are formed in the insulating plug (8), two ignition electrodes (9) are respectively arranged in the two mounting holes, and the bottom ends of the two ignition electrodes (9) are close to the ignition agent layer (5); a magnesium strip (22) is vertically arranged in the medicine charging barrel (1), the top end of the magnesium strip (22) is positioned in the ignition agent layer (5), and the bottom end of the magnesium strip (22) is positioned in the thermite layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098296.3U CN209792774U (en) | 2019-01-21 | 2019-01-21 | Portable metal part field energy-gathering type emergency thermal cutting device |
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| CN201920098296.3U CN209792774U (en) | 2019-01-21 | 2019-01-21 | Portable metal part field energy-gathering type emergency thermal cutting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245689A (en) * | 2021-06-01 | 2021-08-13 | 中国人民解放军陆军工程大学 | Arc ignition remote control ignition device and special cutting bullet thereof |
| CN113245664A (en) * | 2021-06-01 | 2021-08-13 | 中国人民解放军陆军工程大学 | Arc ignition positioning device and special cutting bullet thereof |
-
2019
- 2019-01-21 CN CN201920098296.3U patent/CN209792774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245689A (en) * | 2021-06-01 | 2021-08-13 | 中国人民解放军陆军工程大学 | Arc ignition remote control ignition device and special cutting bullet thereof |
| CN113245664A (en) * | 2021-06-01 | 2021-08-13 | 中国人民解放军陆军工程大学 | Arc ignition positioning device and special cutting bullet thereof |
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