CN113983864B - Bullet is cut high-efficient fire frock of integration - Google Patents
Bullet is cut high-efficient fire frock of integration Download PDFInfo
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- CN113983864B CN113983864B CN202111160858.0A CN202111160858A CN113983864B CN 113983864 B CN113983864 B CN 113983864B CN 202111160858 A CN202111160858 A CN 202111160858A CN 113983864 B CN113983864 B CN 113983864B
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- inner cylinder
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- sliding rod
- ejection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F1/00—Launching apparatus for projecting projectiles or missiles from barrels, e.g. cannons; Harpoon guns
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
An elastic cutting integrated high-efficiency initiating explosive device comprises an igniter, a medicine shell component, an ejection function mechanism component and a cutting function mechanism component, wherein the medicine shell component outputs high-pressure gas to drive an executing mechanism to move; the ejection function mechanism component realizes the locking and releasing functions of the device; the cutting function mechanism component ensures that the ignition cable can be cut off smoothly after working. The fire tool is connected with the first flicking mechanism and the second flicking mechanism through the inner cylinder, the outer cylinder and the connecting flange; the initiating explosive device integrates the functions of an ejector, a cutter and non-electric explosion equipment, realizes the time sequence control of the ejection and cutting functions through structural design and a fuel gas control technology, greatly reduces the installation space compared with the existing ejection and throwing device (comprising the cutter, the ejector and the non-electric explosion equipment), greatly reduces the reliability link, reduces the development cost to 1/4 of the original cost, reduces the installation interfaces to 1, and is simpler and more convenient to install and operate.
Description
Technical Field
The invention belongs to the field of fire tools, and relates to a high-efficiency fire tool device capable of simultaneously realizing locking, ejection and cutting functions.
Background
At present, the common flicking device consists of three parts, which respectively complete different functions: the non-electric explosion assembly is used for synchronously igniting the functional components, namely the ejection device and the cutting device; the ejection device is used for reliably separating the projectile and providing a certain initial speed, and has the functions of reliable connection and separation; the cutting device is used for cutting off the power supply cable of the non-electric explosion component and has a reliable cutting function. The three products are combined together to realize the connection, ejection separation and cable cutting of the structure.
The traditional projectile throwing device is composed of three parts, enough installation space needs to be considered, and particularly the non-electric explosion propagation device needs to consider the bending radius and winding direction of the detonating cord, so that the implementation of an aircraft and a weapon system with strict space requirements is not facilitated. In addition, the non-electric explosion assembly is used for simultaneously supplying power to the ejection assembly and the cutting assembly, the reliability link of the ejection device is a series system of three components, the reliability of the ejection device is smaller than any one of the three components, and the ejection device can realize the preset function only if all the three components work.
Along with the development of scientific technology, the miniaturization and multifunction design of the initiating explosive device is a trend, the most functions are completed with the minimum development cost, and the design of the initiating explosive device is required to integrate multiple functions and reduce the development cost in the face of increasingly competitive markets.
Disclosure of Invention
The technical problems solved by the invention are as follows: the utility model provides a overcome prior art's not enough, provides a bullet cuts high-efficient initiating explosive device of integration, fits a plurality of terminal equipment functions together to make the product can control actuating mechanism's work time sequence in the course of the work through structural design, realize catapulting and cutting function simultaneously, have the size little, light in weight, the reliability is high, with low costs, install characteristics such as convenient operation, have solved the problem that must use three kinds of initiating explosive device in the traditional design.
The technical scheme of the invention is as follows:
an elastic cutting integrated high-efficiency initiating explosive device comprises an igniter (15), a medicine shell component, an ejection function mechanism component and a cutting function mechanism component; the medicine shell component comprises a medicine shell (8) and a medicine box component (14); the ejection functional mechanism component comprises an inner cylinder (1), a first shear pin (2), a slide bar (3), an outer cylinder (4), a wedge block (5), a connecting flange (6) and a piston (7); the cutting function mechanism assembly comprises a shell (9), a cutter (10), a second shearing pin (11), a chopping board (12) and an end cover (13);
the fire tool is connected with the first flicking mechanism through an inner cylinder (1) and is connected with the second flicking mechanism through a connecting flange (6);
the medicine shell (8) in the medicine shell component is of a hollow tee structure, one end of the medicine shell (8) is provided with a threaded hole mounting igniter (15) with a boss, the lower part of the thread is an inner hole, and the medicine box component (14) is mounted in the medicine shell (8);
the second end of the medicine shell (8) is provided with an outer cylinder (4) with a boss threaded hole for installing an ejection function mechanism component, a piston (7) is installed in the outer cylinder (4), the piston (7) is used for transmitting force and sealing fuel gas, a circle of annular groove is formed in the inner surface of the outer cylinder (4) and used for installing a wedge block (5), the wedge block (5) is fixed by a boss of a sliding rod (3), the wedge block (5) is used for connecting the outer cylinder (4) and the inner cylinder (1), the sliding rod (3) is fixed with one end of the inner cylinder (1) through a first shearing pin (2), and external threads are formed at the other end of the inner cylinder (1) and used for being connected with a first ejection structure;
the third end of medicine shell (8) is equipped with the one end of screw hole connection installation cutting function mechanism subassembly casing (9), and casing (9) internally mounted cutter (10), cutter (10) are fixed with casing (9) through second shear pin (11), and chopping block (12) and end cover (13) are installed to the casing (9) other end, prevent the departure of cutting back excessive material.
Further, the medicine box component (14) is arranged in a channel of the medicine shell (8) for installing the igniter (15), the igniter (15) is in threaded connection with the medicine shell (8), the piston and the cutter are sleeved with sealing rings, and the sealing rings adopt fluoroether O-shaped sealing rings to realize the sealing of the whole three-way structure to fuel gas.
Further, the igniter (15) is provided with a cable with the length of 300mm, and the cable is connected with the overall structure after passing through a wire clamping groove arranged on the cutting function mechanism assembly shell (9), so that the cable is conveniently cut off and flicked when the fire tool works.
Further, three vent holes are formed in the combustion cavity of the medicine box assembly (14), one vent hole is used for being connected with an igniter (15), and after the medicine box assembly (14) is ignited, high-pressure fuel gas is respectively provided for the ejection functional mechanism assembly and the cutting functional mechanism assembly through the other two vent holes; the three-way structure enables the fuel gas to synchronously act on the ejection functional mechanism component and the cutting functional mechanism component.
Further, a sliding rod (3) of the ejection function mechanism component and a cutter (10) of the cutting function mechanism component are respectively fixed through a first shearing pin (2) and a second shearing pin (11), the first shearing pin is made of steel 45, the diameter is phi 2mm, the shearing strength is (510+/-30) MPa, the second shearing pin is made of 5A06 aluminum alloy, the diameter is phi 1.2mm, the shearing force is (225+/-20) MPa, the initial movement pressure of the ejection function mechanism component and the initial movement pressure of the cutting function mechanism component are controlled through the shearing pins, the control of working time sequence is realized, and the initiating explosive device is controlled to execute the cutting function first and then the ejection function.
Further, a circular ring with the thickness of 0.3mm is arranged on one side, connected with the inner cylinder (1), of the sliding rod (3), a groove with the width of 2mm is formed in the bottom of the inner cylinder (1), after the sliding rod (3) collides with the inner cylinder (1), the circular ring on the sliding rod (3) is deformed and clamped in the groove of the inner cylinder (1), and therefore locking of the sliding rod (3) is achieved, and surplus materials after working are prevented.
Further, the cutter (10) is made of 14Cr17Ni2 stainless steel, the hardness is HRC=30-36, the cutting edge part is designed into a straight cutter with an angle of 30 degrees, the cutter and the cutting board (12) are combined to act together, the cable is cut off without clamping wires, and the cutting board (12) is made of 2A12-T4 aluminum alloy.
Furthermore, when the igniter cable is installed, the igniter cable is directly placed into a kidney-shaped groove with the diameter of 8.2mm arranged on the shell (9), and is fixed through the chopping board (12) and the end cover (13).
Further, the connection of the two bullet throwing structures is realized before the work of the fire tool, the two bullet throwing structures are guaranteed to be thrown away at a certain speed after the work, and the ignition cable is cut off by the cutter (10), so that the complete bullet throwing of the fire tool is realized, and zero waste weight is realized on the bullet body.
Compared with the prior art, the invention has the advantages that:
(1) According to the invention, a plurality of terminal equipment functions are fitted together, the working time sequence of the actuating mechanism can be controlled in the working process of the product through the structural design, and the ejection and cutting functions are realized, so that the device has the characteristics of small size, light weight, high reliability, low cost, convenience in installation and operation and the like, and the problem that three initiating explosive devices must be used in the traditional design is solved.
(2) The invention integrates the functions of the ejection device, the cutting device and the non-electric explosion device into one fire tool device, has the advantages of small volume and light weight, occupies 98mm multiplied by 63mm multiplied by 43mm, and has the weight of 0.35kg, and compared with the traditional fire tool device, the invention lightens 50 percent;
(3) The invention directly realizes the combined action of the ejection and cutting components by the tee joint structure of the medicine shell component, reduces the explosion propagation link of the non-electric explosion device and improves the reliability of the product;
(4) According to the invention, the ejection function mechanism and the working time sequence control of the cutting function mechanism are realized through the gas control and the intensity design, so that the cutting function is executed first and then the ejection function is executed, and the reliability and the consistency of the initiating explosive device are improved;
(5) The invention completes the same function, reduces the number of initiating explosive devices from three to one, and saves the development cost; the number of the installation interfaces is reduced from 3 to 1, and the invention has convenient installation and simple operation and use.
Drawings
FIG. 1 is a schematic diagram of the device of the present invention in a pre-operation state;
FIG. 2 is a schematic view of the device of the present invention in a post-operation state;
fig. 3 is a schematic view of the installation state of the device of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, the present invention proposes an integrated high-efficiency bullet cutting and firing device, which comprises an igniter 15, a medicine shell component, an ejection function mechanism component and a cutting function mechanism component; the medicine shell component comprises a medicine shell 8 and a medicine box component 14; the ejection functional mechanism component comprises an inner cylinder 1, a first shear pin 2, a slide bar 3, an outer cylinder 4, a wedge block 5, a connecting flange 6 and a piston 7; the cutting function mechanism assembly comprises a shell 9, a cutter 10, a second shearing pin 11, a chopping board 12 and an end cover 13;
the fire tool is connected with the first flicking mechanism through the inner cylinder 1 and is connected with the second flicking mechanism through the connecting flange 6;
the medicine shell 8 in the medicine shell component is of a hollow tee structure, one end of the medicine shell 8 is provided with a threaded hole with a boss for installing a fire arm 15, the lower part of the thread is an inner hole, and the celluloid medicine box component 14 filled with 2/1 camphor medicine is arranged in the medicine shell 8;
the second end of the medicine shell 8 is provided with an outer cylinder 4 with a boss threaded hole for installing an ejection function mechanism component, a piston 7 is arranged in the outer cylinder 4, the piston 7 is used for transmitting force and sealing fuel gas, a circle of annular groove is formed in the inner surface of the outer cylinder 4 and used for installing a wedge block 5, the wedge block 5 is fixed by a boss of a sliding rod 3, the wedge block 5 is used for connecting the outer cylinder 4 and the inner cylinder 1, the sliding rod 3 is fixed with one end of the inner cylinder 1 through a first shearing pin 2, and the other end of the inner cylinder 1 is provided with external threads and used for being connected with a first ejection structure;
the third end of the medicine shell 8 is provided with one end of a threaded hole connected with a cutting function mechanism assembly shell 9, a cutter 10 is arranged in the shell 9, the cutter 10 is fixed with the shell 9 through a second shearing pin 11, and a cutting board 12 and an end cover 13 are arranged at the other end of the shell 9 to prevent superfluous matters from flying out after cutting.
In the invention, the medicine box component 14 is arranged in a channel of the medicine shell 8 for installing the igniter 15, the igniter 15 is connected on the medicine shell 8 in a screwed mode, the piston and the cutter are sleeved with sealing rings, and the sealing rings adopt fluoroether O-shaped sealing rings, so that the sealing of the whole three-way structure to fuel gas is realized.
The igniter 15 is provided with a cable with the length of 300mm, and the cable is connected with the overall structure after passing through a wire clamping groove arranged on the cutting function mechanism assembly shell 9, so that the cable is conveniently cut off and flicked when the fire tool works. Preferably, when the igniter cable is installed, the igniter cable is directly placed in a phi 8.2mm kidney-shaped groove arranged on the shell 9, and is fixed through the chopping board 12 and the end cover 13.
Three vent holes are arranged in the combustion cavity of the medicine box assembly 14, one vent hole is used for connecting the igniter 15, and after the medicine box assembly 14 is ignited, high-pressure fuel gas is respectively provided for the ejection function mechanism assembly and the cutting function mechanism assembly through the other two vent holes; the three-way structure enables the fuel gas to synchronously act on the ejection functional mechanism component and the cutting functional mechanism component.
Preferably, the sliding rod 3 of the ejection function mechanism component and the cutter 10 of the cutting function mechanism component are respectively fixed through the first shearing pin 2 and the second shearing pin 11, the first shearing pin is made of 45# structural steel, the diameter is phi 2mm, the shearing strength is (510+/-30) MPa, the second shearing pin is made of 5A06 aluminum alloy, the diameter is phi 1.2mm, the shearing force is (225+/-20) MPa, the initial movement pressure of the ejection function mechanism component and the cutting function mechanism component is controlled through the shearing pins, the control of working time sequence is realized, and the initiating explosive device is controlled to execute the cutting function first and then execute the ejection function.
Preferably, a circular ring with the thickness of 0.3mm is arranged on one side of the sliding rod 3 connected with the inner cylinder 1, a groove with the width of 2mm is arranged at the bottom of the inner cylinder 1, and after the sliding rod 3 collides with the inner cylinder 1, the circular ring on the sliding rod 3 is deformed and clamped in the groove of the inner cylinder 1, so that the locking of the sliding rod 3 is realized, and the surplus substances after working are prevented.
Preferably, the cutter 10 is made of 14Cr17Ni2 stainless steel material, the hardness is HRC=30-36, the cutting edge part is designed as a straight cutter with an angle of 30 degrees, the cutter and the cutting board 12 work together, the cable is cut off without clamping wires, and the cutting board 12 is made of 2A12-T4 aluminum alloy.
Examples:
the embodiment of the invention provides an elastic cutting integrated high-efficiency initiating explosive device which mainly comprises an igniter 15, a medicine shell component, an ejection function mechanism component and a cutting function mechanism component.
The cartridge assembly consists of a cartridge 8 and a cartridge assembly 14. The medicine shell 8 is of a hollow tee structure, an igniter 15 is arranged at one end of the medicine shell through an M14 multiplied by 1-6H threaded hole with a phi 20 boss, an inner hole with a phi 11 is arranged at the lower part of the thread, and a celluloid medicine box assembly 14 filled with 2/1 medicine is arranged inside the celluloid medicine box assembly; the second end of the medicine shell 8 is provided with an M20 multiplied by 1-6H threaded hole with a phi 25 boss for installing the outer cylinder 4 of the ejection functional mechanism component; the third end of the medicine shell 8 is provided with an M14X1-6H threaded hole which is connected with a shell 9 in the cutting function mechanism component.
The ejection functional mechanism component consists of an inner cylinder 1, a first shear pin 2, a slide bar 3, an outer cylinder 4, a wedge block 5, a connecting flange 6 and a piston 7. The fire tool is fixed on the second flicking mechanism through 4M 4-6H threaded holes of the connecting flange 6, and is reliably connected with the first flicking mechanism through M16 multiplied by 1.5-6H external threads on the inner cylinder 1. The piston 7 is arranged in the outer cylinder 4, the outer cylinder 4 is provided with a circle of ring grooves for installing the wedge blocks 5, the wedge blocks 5 are fixed by bosses of the sliding rods 3, the wedge blocks 5 are used for connecting the outer cylinder 4 and the inner cylinder 1, and the sliding rods 3 are fixed with the inner cylinder 1 through the first shearing pins 2.
The cutting function mechanism assembly consists of a shell 9, a cutter 10, a second shear pin 11, a cutting board 12 and an end cover 13. The cable of the igniter 15 is passed through an 8.2mm wide U-shaped slot in the housing 9 and is placed between the cutter 10 and the anvil 12. The cutter 10 is arranged in the shell 9, the cutter 10 is fixed with the shell 9 through the second shearing pin 11, and the chopping block 12 and the end cover 13 are arranged at the other end of the shell 9, so that the cut surplus substances are prevented from flying out.
As shown in fig. 3, the connection of the two projectile throwing structures is realized before the work of the fire tool, the two projectile throwing structures are guaranteed to be thrown away simultaneously at a certain speed after the work, and the ignition cable is cut off by the cutter 10, so that the complete projectile throwing of the fire tool is realized, and zero waste weight on the projectile body is realized.
According to the invention, a plurality of terminal equipment functions are fitted together, the working time sequence of the actuating mechanism can be controlled in the working process of the product through the structural design, and the ejection and cutting functions are realized, so that the device has the characteristics of small size, light weight, high reliability, low cost, convenience in installation and operation and the like, and the problem that three initiating explosive devices must be used in the traditional design is solved.
Working principle:
and executing ejection function: as shown in fig. 2, the igniter 15 receives an electrical signal and fires, the medicine box assembly 14 is ignited, the generated high-pressure gas pushes the sliding rod 3 to shear the first shear pin 2 and then move continuously, after the displacement of 4.5mm is reached, the wedge block 5 slides out from the slotted hole of the outer cylinder 4 to the axle center, and unlocking of the two parts of the inner cylinder 1 and the outer cylinder 4 is realized. The inner cylinder 1 continues to move leftwards under the pushing of the piston 7 until the inner cylinder 1, the sliding rod 3, the wedge block 5 and the outer cylinder 4 are completely separated, the piston 7 moves to the contact surface of the outer cylinder 2 and the wedge block 5, the piston 7 moves in place under the restriction of the aperture of the outer cylinder 2, and the gas is sealed in the combustion chamber without leakage. In order to prevent the sliding rod 3 from falling out to form surplus, a 2 x phi 11 groove is designed at the bottom of an inner hole of the inner cylinder 1, a circular ring with the length of 1mm and the thickness of 0.3mm is added on the impact surface of the sliding rod 3, and when the sliding rod 3 works, the sliding rod 3 impacts the inner cylinder 1, the circular ring is flattened, the sliding rod 3 is limited to move outwards, and only inwards. In order to prevent the wedge block 5 from flying out to form surplus, a groove with the width of 1mm and the depth of 0.45mm is processed at the edge of the wedge block groove of the inner cylinder 1, a section of circular ring with the thickness of 0.25mm is added at the corresponding wedge block 5 part, and after the assembly, the circular ring of the wedge block 5 is sunk into the groove of the inner cylinder 1 to limit the outward movement of the wedge block 5 and can only move inwards. By adopting the method, the sliding rod 3 after working can be ensured to be remained in the groove of the inner cylinder 1 through the structural design, and the wedge block 5 is remained in the wedge block groove of the inner cylinder 1, so that the effectiveness of the product in controlling the redundant substances is improved.
Executing a cutting function: the igniter 15 is ignited after receiving the electrical signal, the cartridge assembly 14 is ignited, the generated high pressure gas pushes the cutter 10 to shear the second shear pin 11, the cutter continues to move to shear the cable in the U-shaped groove of the igniter 15, and the cutter 10 impacts the anvil 15.
And (3) working time sequence control: the high-pressure gas acts on the top surface of the cutter 10 and the cavity of the piston 7 respectively, the stress area of the piston 7 is 3.1 times of the stress area of the cutter 10, the material of the first shearing pin 2 is 45# and has the diameter of 2mm, the shearing strength is (510+/-30) MPa, the material of the second shearing pin 11 is 5A06 and has the diameter of 1.2mm, the shearing force is (225+/-20) MPa, the shearing force of the first shearing pin 2 is 5.4 times of the shearing force of the second shearing pin 11, and under the same pressure, the second shearing pin 11 breaks before the first shearing pin 2, namely, the cutting function is executed before the ejection function is executed.
The initiating explosive device integrates the functions of an ejector, a cutter and non-electric explosion equipment, realizes the time sequence control of the ejection and cutting functions through structural design and a fuel gas control technology, greatly reduces the installation space compared with the original ejection and throwing device (comprising the cutter, the ejector and the non-electric explosion equipment), greatly reduces the reliability link, reduces the development cost to 1/4 of the original installation interfaces, and has simpler installation operation.
What is not described in detail in the present specification is a known technology to those skilled in the art.
Claims (4)
1. An integrated high-efficient initiating explosive device is cut to bullet which characterized in that: comprises an igniter (15), a medicine shell component, an ejection function mechanism component and a cutting function mechanism component; the medicine shell component comprises a medicine shell (8) and a medicine box component (14); the ejection functional mechanism component comprises an inner cylinder (1), a first shear pin (2), a slide bar (3), an outer cylinder (4), a wedge block (5), a connecting flange (6) and a piston (7); the cutting function mechanism assembly comprises a shell (9), a cutter (10), a second shearing pin (11), a chopping board (12) and an end cover (13);
the fire tool is connected with the first flicking mechanism through an inner cylinder (1) and is connected with the second flicking mechanism through a connecting flange (6);
the medicine shell (8) in the medicine shell component is of a hollow tee structure, one end of the medicine shell (8) is provided with a threaded hole mounting igniter (15) with a boss, the lower part of the thread is an inner hole, and the medicine box component (14) is arranged in the medicine shell (8);
the second end of the medicine shell (8) is provided with an outer cylinder (4) with a boss threaded hole for installing an ejection function mechanism component, a piston (7) is installed in the outer cylinder (4), the piston (7) is used for transmitting force and sealing fuel gas, a circle of annular groove is formed in the inner surface of the outer cylinder (4) and used for installing a wedge block (5), the wedge block (5) is fixed by a boss of a sliding rod (3), the wedge block (5) is used for connecting the outer cylinder (4) and the inner cylinder (1), the sliding rod (3) is fixed with one end of the inner cylinder (1) through a first shearing pin (2), and external threads are formed at the other end of the inner cylinder (1) and used for being connected with a first ejection structure;
the third end of the medicine shell (8) is provided with a threaded hole for connecting and installing one end of a cutting function mechanism assembly shell (9), a cutter (10) is arranged in the shell (9), the cutter (10) is fixed with the shell (9) through a second shearing pin (11), and the other end of the shell (9) is provided with a cutting board (12) and an end cover (13) for preventing excessive substances after cutting from flying out;
the igniter (15) receives an electric signal and fires, the medicine box assembly (14) is ignited, the generated high-pressure gas pushes the sliding rod (3) to shear the first shear pin (2) and then move continuously, after the displacement of 4.5mm is reached, the wedge block (5) slides out of the slotted hole of the outer cylinder (4) to the axle center, and unlocking of the two parts of the inner cylinder (1) and the outer cylinder (4) is realized; the inner cylinder (1) continues to move leftwards under the pushing of the piston (7) until the inner cylinder (1), the sliding rod (3) and the wedge block (5) are completely separated from the outer cylinder (4), the piston (7) moves to the contact surface of the outer cylinder (4) and the wedge block (5), the piston (7) moves in place under the restriction of the aperture of the outer cylinder (4), and the gas is sealed in the combustion cavity without leakage; in order to prevent the sliding rod (3) from falling out to form surplus, a 2 x phi 11 groove is designed at the bottom of an inner hole of the inner cylinder (1), a circular ring with the length of 1mm and the thickness of 0.3mm is added on the impact surface of the sliding rod (3), and when the sliding rod (3) is in operation, the circular ring is flattened to limit the outward movement of the sliding rod (3) and only the inward movement of the sliding rod (3) is realized; in order to prevent the wedge block (5) from flying out to form surplus, a groove with the width of 1mm and the depth of 0.45mm is processed at the edge of the wedge block groove of the inner cylinder (1), a section of circular ring with the thickness of 0.25mm is added at the corresponding wedge block (5), after the assembly, the circular ring of the wedge block (5) sinks into the groove of the inner cylinder (1), and the wedge block (5) is limited to move outwards and only move inwards; the sliding rod (3) after working is left in the groove of the inner cylinder (1), and the wedge block (5) is left in the wedge block groove of the inner cylinder (1);
the medicine box assembly (14) is arranged in a channel of the medicine shell (8) for installing the igniter (15), the igniter (15) is connected on the medicine shell (8) in a screwed mode, the piston and the cutter are sleeved with sealing rings, the sealing rings adopt fluoroether O-shaped sealing rings, and the sealing of the whole three-way structure to fuel gas is achieved;
three vent holes are formed in the combustion cavity of the medicine box assembly (14), one vent hole is used for being connected with an igniter (15), and after the medicine box assembly (14) is ignited, high-pressure fuel gas is respectively provided for the ejection functional mechanism assembly and the cutting functional mechanism assembly through the other two vent holes; the tee joint structure enables the fuel gas to synchronously act on the ejection functional mechanism component and the cutting functional mechanism component;
the sliding rod (3) of the ejection function mechanism component and the cutter (10) of the cutting function mechanism component are respectively fixed through a first shearing pin (2) and a second shearing pin (11), the first shearing pin is made of steel 45, the diameter is phi 2mm, the shearing strength is (510+/-30) MPa, the second shearing pin is made of 5A06 aluminum alloy, the diameter is phi 1.2mm, the shearing force is (225+/-20) MPa, the initial movement pressure of the ejection function mechanism component and the cutting function mechanism component is controlled through the shearing pins, the control of working time sequence is realized, and the initiating explosive device is controlled to execute the cutting function first and then the ejection function;
before the work of the fire tool, the connection of the two bullet throwing structures is realized, after the work, the two bullet throwing structures are thrown away at a certain speed at the same time, and the ignition cable is cut off by the cutter (10), so that the complete bullet throwing of the fire tool is realized, and the zero waste weight on the bullet body is realized;
the cutter (10) is made of 14Cr17Ni2 stainless steel, the hardness is HRC=30-36, the cutting edge part is designed into a straight cutter with an angle of 30 degrees, the straight cutter and the cutting board (12) are combined to act together, the cable is cut off without clamping wires, and the cutting board (12) is made of 2A12-T4 aluminum alloy.
2. The bullet cutting integrated high-efficiency initiating explosive device according to claim 1, wherein: the igniter (15) is provided with a cable with the length of 300mm, and the cable is connected with the overall structure after passing through a wire clamping groove arranged on the cutting function mechanism assembly shell (9), so that the cable is convenient to cut off and flick when the fire tool works.
3. The bullet cutting integrated high-efficiency initiating explosive device according to claim 1, wherein: the circular ring with the thickness of 0.3mm is arranged on one side, connected with the inner cylinder (1), of the sliding rod (3), a groove with the width of 2mm is formed in the bottom of the inner cylinder (1), after the sliding rod (3) collides with the inner cylinder (1), the circular ring on the sliding rod (3) is deformed and clamped in the groove of the inner cylinder (1), and therefore locking of the sliding rod (3) is achieved, and surplus materials after working are prevented.
4. The bullet cutting integrated high-efficiency initiating explosive device according to claim 1, wherein: when the igniter cable is installed, the igniter cable is directly placed into a kidney-shaped groove with the diameter of 8.2mm arranged on the shell (9), and is fixed through the chopping board (12) and the end cover (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111160858.0A CN113983864B (en) | 2021-09-30 | 2021-09-30 | Bullet is cut high-efficient fire frock of integration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111160858.0A CN113983864B (en) | 2021-09-30 | 2021-09-30 | Bullet is cut high-efficient fire frock of integration |
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| CN113983864B true CN113983864B (en) | 2023-08-29 |
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| US4972848A (en) * | 1989-08-23 | 1990-11-27 | Medtronic, Inc. | Medical electrical lead with polymeric monolithic controlled release device and method of manufacture |
| CN106481633A (en) * | 2016-11-02 | 2017-03-08 | 北京空间机电研究所 | A kind of low impact high-mechanic firer's release screw bolt |
| CN106553774A (en) * | 2016-11-14 | 2017-04-05 | 北京空间机电研究所 | A kind of fuel gas pipeline network type catapult-launching gear of the integrated ejection of multiple spot |
| CN209125882U (en) * | 2018-09-07 | 2019-07-19 | 陕西中天火箭技术股份有限公司 | A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter |
| CN111891412A (en) * | 2020-07-17 | 2020-11-06 | 沈阳航天新光集团有限公司 | Protective cover ejection device |
-
2021
- 2021-09-30 CN CN202111160858.0A patent/CN113983864B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4972848A (en) * | 1989-08-23 | 1990-11-27 | Medtronic, Inc. | Medical electrical lead with polymeric monolithic controlled release device and method of manufacture |
| CN106481633A (en) * | 2016-11-02 | 2017-03-08 | 北京空间机电研究所 | A kind of low impact high-mechanic firer's release screw bolt |
| CN106553774A (en) * | 2016-11-14 | 2017-04-05 | 北京空间机电研究所 | A kind of fuel gas pipeline network type catapult-launching gear of the integrated ejection of multiple spot |
| CN209125882U (en) * | 2018-09-07 | 2019-07-19 | 陕西中天火箭技术股份有限公司 | A kind of gunpowder makees movable barrel type wedge shape knife wire rope cutter |
| CN111891412A (en) * | 2020-07-17 | 2020-11-06 | 沈阳航天新光集团有限公司 | Protective cover ejection device |
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| CN113983864A (en) | 2022-01-28 |
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