CN113432494B - Rigid shearing recoil safety mechanism with anti-recovery function and fuse - Google Patents
Rigid shearing recoil safety mechanism with anti-recovery function and fuse Download PDFInfo
- Publication number
- CN113432494B CN113432494B CN202110274085.2A CN202110274085A CN113432494B CN 113432494 B CN113432494 B CN 113432494B CN 202110274085 A CN202110274085 A CN 202110274085A CN 113432494 B CN113432494 B CN 113432494B
- Authority
- CN
- China
- Prior art keywords
- ball
- hole
- safety
- rotor
- recoil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
- F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
The invention discloses a rigid shearing recoil safety mechanism with a reverse recovery function and a fuse. The body, the ball rotor and the ball seat jointly form an explosion-proof and delay relief mechanism. The rigid shearing recoil safety mechanism with the reverse recovery function is coaxially arranged at the rear end of the ball rotor and comprises a ball seat, an inertial body and two shearing pins, and the shearing pins sheared after the safety is relieved transversely move under the action of centrifugal force to realize the reverse recovery function. The detonating tube and the recoil safety mechanism are designed coaxially and integrally. The split ring and the recoil safety mechanism realize the redundant safety of the ball rotor. The design of the double-axial input flame detonator on the ball rotor and the multi-path fire transmission holes thereof realizes the fuse self-failure or fire insulation characteristic under the condition of fuse failure relief, and can ensure the safety of explosive treatment.
Description
Technical Field
The invention belongs to the technology of rotary projectile triggering fuze, and particularly relates to a rigid shearing recoil safety mechanism with an anti-recovery function and a fuze.
Background
Small caliber artillery shells, which are generally ammunition having a caliber of 20 to 40 mm and being fired by a cannon to accomplish killing, blasting, burning or other tactical purposes, are widely used in land, sea, air, army and other combat troops due to their high maneuverability, high firing speed and large carrying capacity.
The development of the bullet trigger fuse of the small-caliber rotary cannonball in the American army is mature at present, and the bullet trigger fuse of the old generation M505A3 is still applied to the American army, the sea and the air army at present and is the fuse with the widest application range in the United states. The explosion-proof ball rotor adopts the split ring as a safety part of the ball rotor and realizes explosion-proof by utilizing the ball rotor. The detonator in the ball rotor is staggered with the axis of the firing pin and the detonating tube outside the ball rotor by a certain angle. The M505A3 fuse has better explosion-proof performance and certain large-angle ignition capability. The new generation of small-caliber rotary shell warhead trigger fuze in the American military, such as M758, has already fully satisfied the relevant requirements of "fuze safety design criteria". The American military M758 fuse adopts a gas damping principle to realize delay relief, the delay relief distance can reach 10M-100M, once a related damping part loses the damping characteristic, the delay relief distance becomes zero, the delay relief function of the fuse is completely lost, and the safety cannot be effectively guaranteed.
The small-caliber rotary shell fuzes are all non-explosion-proof, and safety accidents occur continuously. Until the eighties of the last century, the explosion-proof safety problem is solved, and several new fuses are successfully developed. However, compared with the relevant requirements of GJB373B-2019 fuse safety design criteria, the system fuses are all single-insurance fuses, cannot meet the requirement of redundancy insurance, do not have self-failure characteristics, and have safety defects.
Disclosure of Invention
The invention aims to provide a rigid shearing recoil safety mechanism with a reverse recovery function and a fuse, which can comprehensively improve the safety of a bullet fuse of a small-caliber rotary shell.
The technical solution for realizing the purpose of the invention is as follows: a rigid shear recoil safety mechanism with a reverse recovery function comprises a ball seat, an inertial body and two shear pins; a second-step stepped hole which penetrates through the ball seat along the axial direction is arranged in the center of the ball seat, and sequentially comprises a first-step hole and a second-step hole from top to bottom, wherein a first transverse through hole which penetrates through the axis along the radial direction is arranged on the wall surface of the second-step hole; the inertia body consists of three-step cylinders which are a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, wherein the second cylinder is provided with a second transverse through hole which penetrates through the axis along the radial direction; the second cylinder on the inertial body is arranged in a second step hole of the ball seat in a clearance fit manner, the two same shearing pins respectively penetrate through the first transverse through hole on the ball seat and extend into the second transverse through hole on the inertial body in a clearance fit manner, and the inertial body is fixed at a safety position, namely, the movement of the safety piece to a position in an aligned state can be prevented; the inertia body can move downwards under the action of the overload of the squat to cut off the shear pin and release the protected piece; the ball seat is characterized in that a third step hole coaxial with the upper second step hole is further formed in the center of the bottom end of the ball seat, the diameter of the third step hole is larger than that of the second step hole, when the inertial body moves downwards until the bottom end face of the second cylinder on the inertial body is flush with the bottom face of the ball seat, the second transverse through hole of the inertial body is lower than the hole bottom of the third step hole in the ball seat, and two sections of shear pins are arranged in the second transverse through hole of the inertial body and move downwards together with the inertial body.
A fuse applying a rigid shearing recoil safety mechanism with a reverse recovery function has a self-failure or fire-insulating characteristic and comprises a body, a collision type trigger mechanism, a ball rotor, the rigid shearing recoil safety mechanism with the reverse recovery function, a split ring, a detonating tube and a booster tube; the impact type trigger mechanism is coaxially arranged at the top end of the body; the ball rotor comprises an isolation ball and two biaxial input flame detonators; one end of the double-axial input flame detonator is a flame input end, and the other end of the double-axial input flame detonator is a flame input end and an output end; the left side and the right side of the isolation ball are respectively provided with a first transverse blind hole, a first connecting hole is arranged between the two first transverse blind holes, and the input ends of the two biaxial input flame detonators are outwards arranged in the two first transverse blind holes of the isolation ball respectively; the split ring is a centrifugal safety part of the ball rotor and is clamped outside a crescent notch at the lower end of the isolation ball, so that one safety of the ball rotor is realized, namely the centrifugal safety; the detonating tube is fixed at the rear end of the detonating tube, and part of the detonating tube protrudes out of the lower end surface of the body and is used for amplifying the detonation energy output by the detonating tube during the action of a detonator so as to detonate the warhead of the projectile to charge; the rigid shearing recoil safety mechanism with the reverse recovery function is coaxially arranged at the rear end of the ball rotor and comprises a ball seat, an inertial body and two shearing pins, the body, the ball rotor and the ball seat jointly form an explosion-proof and delay relief safety mechanism, and the body and the ball seat jointly form an accommodating and moving chamber of the ball rotor; the upper end surface of the inertia body abuts against the bottom end of the isolation ball to realize another safety for the ball rotor, namely a recoil safety; the detonating tube and the recoil safety mechanism are designed coaxially and integrally, so that the inertia body is ensured to realize safety of the ball rotor and normal detonation of a fuse detonation sequence is not influenced.
Compared with the prior art, the invention has the following remarkable advantages:
(1) the detonator and the recoil safety mechanism share the axial space, so that the space of the inner cavity of the fuse is fully utilized.
(2) The method can comprehensively meet the relevant design requirements of the fuse safety design criterion under the condition of smaller space constraint, and specifically comprises explosion-proof safety, redundancy insurance, delayed relief insurance, self-failure and the like.
Drawings
Fig. 1 is a schematic diagram of a fuse structure of a rigid shear recoil safety mechanism with a reverse recovery function according to the present invention.
Fig. 2 is a longitudinal cross-sectional view of the middle isolation ball of a fuse employing a rigid shear recoil safety mechanism of the present invention.
Figure 3 is an isometric view of a spacer ball in a fuse of the present invention employing a rigid shear recoil safety mechanism having anti-recoil capabilities.
In the figure: 1 is a body, 2 is a collision type trigger mechanism, 3 is a ball rotor, 4 is a recoil safety mechanism, 5 is an explosion-proof and delay release safety mechanism, 6 is a detonating tube, 7 is a detonating tube, 8 is a split ring, 21 is a moisture-proof sheet, 22 is an upper body, 23 is a needle-prick fire cap, 31 is an isolation ball, 32 is a double-axial input flame detonator, 41 is a shear pin, 42 is an inertia body, 43 is a ball seat, 71 is a detonating tube shell, 72 is a reinforcing cap, and 73 is a detonating powder.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
With reference to fig. 1 to 3, a rigid shear recoil safety mechanism with anti-recovery function includes a ball seat 43, an inertial body 42 and two shear pins 41; the ball seat 43 is provided with a second step stepped hole at the center, which penetrates along the axial direction, and a first step hole and a second step hole are sequentially arranged from top to bottom, wherein the wall surface of the second step hole is provided with a first transverse through hole penetrating along the axial direction through the axis. The inertia body 42 is composed of three-step cylinders, which are a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, wherein the second cylinder is provided with a second transverse through hole which penetrates through the axis along the radial direction; the second cylinder on the inertial body 42 is arranged in the second step hole of the ball seat 43 in a clearance fit manner, and the two same shear pins 41 respectively pass through the first transverse through hole on the ball seat 43 and extend into the second transverse through hole on the inertial body 42 in a clearance fit manner, so that the inertial body 42 is fixed at a safety position, namely, the movement of the safety part to a position in an alignment state can be prevented. The mass 42 can move downwards under the action of the squat overload to shear the shear pin 41 and release the secured piece.
Furthermore, the center of the bottom end of the ball seat 43 is also provided with a third step hole which is coaxial with the second step hole on the ball seat 43, the diameter of the third step hole is larger than that of the second step hole, when the inertial body 42 moves downwards until the bottom end surface of the second cylinder on the inertial body is flush with the bottom surface of the ball seat 43, the second transverse through hole of the inertial body 42 is lower than the bottom of the third step hole on the ball seat 43, and two sections of shear pins 41 which are positioned in the second transverse through hole of the inertial body 42 and move downwards together with the inertial body 42 partially extend into the third step hole on the ball seat 43 under the action of centrifugal force after the projectile flies out of the muzzle to the end of the rear effect, so that the inertial body 42 is ensured not to move forwards due to the action of crawling force and nutation force and recover the insurance of the insured piece, and the anti-recovery function is realized.
Further, the fuse applying the rigid shearing recoil safety mechanism with the anti-recovery function has the self-failure or fire-insulation characteristic and comprises a body 1, a collision type trigger mechanism 2, a ball rotor 3, a recoil safety mechanism 4, a split ring 8, a detonating tube 6 and a detonating tube 7; wherein, the impact trigger mechanism 2 comprises a moisture-proof sheet 21, an upper body 22 and a needle-prick fire cap 23 which are coaxially arranged at the upper end of the body 1. The upper body 22 comprises a first round table and a fourth cylinder which are sequentially and coaxially connected from top to bottom, the upper end of the first round table is small, the lower end of the first round table is large, and an external thread is arranged on the cylindrical surface of the fourth cylinder. The upper body 22 is provided with a fourth-step stepped hole, a fourth-step hole, a fifth-step hole, a sixth-step hole and a seventh-step hole, wherein the diameters of the fourth-step stepped hole, the fifth-step hole, the sixth-step hole and the seventh-step hole are sequentially decreased from top to bottom along the central axis of the upper body. The moisture-proof sheet 21 is a circular thin sheet, is arranged in a fourth-step hole on the upper body 22, and is fixed by closing up the top end of the upper body 22. The acupuncture input end of the acupuncture fire cap 23 is upwards arranged in a sixth-order hole in the upper body 22 and is fixed in a point riveting mode; the body 1 comprises a second round table and a fifth cylinder from top to bottom, wherein the cylindrical surface of the fifth cylinder is provided with an external thread for connecting a projectile body. The inner cavity of the body 1 comprises four-step stepped through holes which are coaxially arranged from top to bottom along the central axis and are an eighth-step hole, a ninth-step hole, a tenth-step hole and an eleventh-step hole respectively. An inner thread is arranged in the eighth step hole of the body 1 and is used for being connected with an outer thread on the fourth cylinder of the upper body 22. The second round table on the body 1 and the outer wall of the first round table of the upper body 22 are in smooth transition. The top end of the tenth-step hole in the body 1 is hemispherical, and the bottom end of the tenth-step hole is provided with a section of internal thread.
Further, the ball seat 43 is provided with a coaxial incomplete ball socket at the top center, which is communicated with the first step hole. The ball rotor 3 comprises an isolation ball 31 and two biaxial input flame detonators 32, and is arranged in a tenth-step hole of the body 1 and above a ball seat 43. One end of the biaxial input flame detonator 32 is a flame input end, and the other end is both a flame input end and an output end; the isolation ball 31 is a round ball with an incomplete outline, the left side and the right side of the isolation ball are respectively provided with a first transverse blind hole, a first connecting hole is arranged between the two first transverse blind holes, and the input ends of the biaxial input flame detonators 32 are outwards arranged in the two first transverse blind holes of the isolation ball 31 respectively. The center of the bottom end of the isolation ball 31 is provided with a transverse plane which is a first limiting surface.
Further, the body 1, the ball rotor 3 and the ball seat 43 together form an explosion-proof and delay relief mechanism 5, wherein the semi-spherical hole on the body 33 and the incomplete ball socket on the ball seat 43 together form an accommodating and moving chamber of the ball rotor 3. The recoil safety mechanism 4 is a rigid shearing recoil safety mechanism with a reverse recovery function. The lower end of the isolating ball 31 is provided with a crescent notch. The split ring 8 is a circular ring with an opening at one end, is a centrifugal safety part of the ball rotor 3, and is clamped outside a crescent notch at the lower end of the isolation ball 31 to realize one safety of the ball rotor 3, namely centrifugal safety; the booster 7 is fixed at the rear end of the detonator 6, partially protrudes out of the lower end face of the body 33, and is used for amplifying detonation energy output by the detonator 6 during fuze action so as to detonate the warhead of the projectile for loading.
Further, the recoil safety mechanism 4 is coaxially disposed at the rear end of the ball rotor 3, wherein the upper end surface of the inertial body 42 abuts against the first limiting surface at the bottom end of the isolation ball 31, so as to realize another safety of the ball rotor 3, i.e. the recoil safety.
Further, a downward axial blind hole is formed in the center of the bottom end of the inertial body 42. The detonating tube 6 and the recoil safety mechanism 4 are designed coaxially and integrally and are arranged in an axial blind hole on the inertia body 42, so that the inertia body 42 is ensured to realize the safety of the ball rotor 3 and the normal detonation of a fuse explosion sequence is not influenced. The squib 7 includes a squib case 71, a reinforcing cap 72 and a squib 73. The detonator shell 71 comprises three-order stepped cylinders which are coaxially connected from top to bottom, and is sequentially provided with a sixth cylinder, a seventh cylinder and an eighth cylinder, wherein the cylindrical surface of the sixth cylinder is provided with external threads for being connected with internal threads on a tenth-order hole on the body 1, the seventh cylinder is arranged in the eleventh-order hole on the body 1 and is fixed on the body 1 through a bottom closing-up of the body 1, and the axial connection strength between the detonator shell 71 and the body 1, which has obvious influence on the detonator explosion-proof safety, is improved. An eighth cylinder on the detonator shell 71 protrudes from the bottom end of the body 1.
Further, a second-order stepped blind hole with a large top and a small bottom is formed in the center of the top end of the booster shell 71, and a twelfth-order hole and a thirteenth-order hole are sequentially formed from top to bottom. The ball seat 43 is disposed in the tenth second order hole of the squib case 71 such that the third cylinder of the inertial body 42 extends into the tenth third order hole of the squib case 71 in a clearance fit. The strong cap 72 is a thin-walled cylinder with an open bottom end, and seals the booster charge 73 at the bottom end of the fifteenth-order hole in the booster shell 71. A certain axial gap is left between the top end of the reinforcing cap 72 and the bottom end of the inertial body 42, so that the reinforcing cap 72 is not directly extruded when the inertial body 42 moves downwards to the proper position.
Furthermore, a plurality of same blind holes are uniformly arranged on the isolating ball 31 in the radial direction in a symmetrical plane passing through the center of the ball and perpendicular to the detonator shaft, and lead to the first connecting hole on the isolating ball 31, and the gap between the ball rotor 3 and the moving chamber is larger, so that the high-temperature and high-pressure gas-solid mixed product of the needle-prick fire cap 23 of the impact type triggering mechanism 2 after firing can be reliably transmitted to the input end of the flame detonator 32 through at least one of the blind holes or the gap between the ball rotor 3 and the moving chamber even under the condition that the ball rotor 3 is not rotated, and the fuse can realize self-failure or fire insulation function.
Furthermore, a fourteenth step hole which is axially communicated with the seventh step hole is further formed in the center of the bottom of the upper body 22 (the output end of the impact type trigger mechanism 2), and the fourteenth step hole is a fire transfer channel when the impact type trigger mechanism 2 is fired and output, and is a release space for the pressure of the inner cavity of the explosion-proof and delay relief mechanism 5 in an explosion-proof state, so that the explosion-proof safety problem of a fuse is favorably solved.
According to the fuse of the rigid shear recoil safety mechanism with the anti-recovery function, the detonating tube 6 and the recoil safety mechanism 4 share the axial space, so that the space of the inner cavity of the fuse is fully utilized; and under the condition of smaller space constraint, the related design requirements of the fuse safety design criterion are comprehensively met, and the design requirements specifically comprise explosion suppression, redundancy insurance, delay relief insurance, self-failure and the like.
During the service handling phase, authentic impacts, vibrations, including falls and shipping vibrations, etc., do not cause the fuze to change assembly conditions. The recoil safety mechanism 4 and the split ring 8 in the fuse are both positioned at safety positions, so that the explosion-proof and delay relief safety mechanism 5 (the ball rotor 3) is ensured to be in an explosion-proof state, and even if the flame detonators 32 (any one or two of the flame detonators) in the fuse are accidentally fired and exploded, the explosion-proof and delay relief safety mechanism 5 and a pressure relief space formed by a fourteenth-order hole in the upper body 22 can ensure that the fuse cannot generate a dangerous fragment outwards, the detonating tube 6 and the detonating tube 7 cannot be ignited, namely, the fuse cannot be accidentally fired, and the safety of the service processing stage can be ensured.
When the projectile is shot, under the action of recoil force, the inertial body 42 and the detonating tube 6 shear the shearing pin 41 and move downwards, so that the top end of the inertial body 42 does not limit the movement of the ball rotor 3 any more, and one safety (recoil safety) to the ball rotor 3 is relieved. The inertial body 42 and the detonator 6 continue to move downward thereafter until the second cylindrical bottom end on the inertial body 42 abuts the twelfth order hole bottom end on the detonator shell 71. At this time, the bottom end of the inertial body 42 is still spaced from the reinforcing cap 72 by a certain distance, so that the inertial body 42 does not directly press the reinforcing cap, and the safety of the launching in the chamber is ensured.
During movement of the projectile in the bore, the lower end surface of split ring 8 is squeezed against the upper end surface of ball seat 43 under recoil. The centrifugal force at the initial stage of the internal trajectory is not sufficient to overcome the friction of its end face due to recoil and therefore cannot cause opening of split ring 8.
When the projectile moves in the bore to approach a muzzle and the rotating speed of the projectile reaches a certain value, the split ring 8 is opened under the action of centrifugal moment, and then another safety (centrifugal safety) for the ball rotor 3 is relieved. Whether the split ring 8 is thrown in the bore or outside the bore to release the safety of the ball rotor 3, because the friction torque generated by the recoil overload in the bore is larger, usually, only after the recoil overload at the end of the period of validity of the round of the projectile flying out of the bore is obviously reduced, the centrifugal torque of the ball rotor 3 is larger than the friction torque, the ball rotor can start to rotate and rotate to the alignment position beyond the safety distance of the round of projectile flying out of the bore, namely, the biaxial input flame detonator 32 at one end of the isolating ball 31 is opposite to the bottom end of the impact type triggering mechanism 2, the biaxial input flame detonator 32 at the other end is opposite to the detonating tube 6, the axial line of the biaxial input flame detonator 32 is coincident or nearly coincident with the projectile axis, and the fuze is in the state of being released after the safety.
Meanwhile, the remaining two segments of shear pins in the inertial body 42 move outward in the radial direction under the action of centrifugal force and partially extend into the third step hole on the ball seat 43, so that the inertial body 42 is ensured not to move upward under the action of crawling force and nutation force, that is, the safety of the ball rotor 3 is not restored.
When the projectile impacts the target or lands, target fragments or ground silt can break the moisture-proof sheet 21 and enter the head of the fuse to impact the needle-prick fire cap 23, so that the needle-prick fire cap 23 fires. The high-temperature high-pressure gas-solid mixture generated after the firing of the needle-prick fire cap 23 sequentially passes through the seventh-order hole and the fourteenth-order hole on the upper body 22 and the ninth-order hole on the body 1, reaches the flame input end (simultaneously also the output end) of the biaxial input flame detonator 32 at the upper end of the isolation ball 31 to be detonated, the biaxial input flame detonator 32 acts and then detonates the other biaxial input flame detonator 32 at the lower end of the isolation ball 31 through the middle fire-transfer hole, the biaxial input flame detonator 32 at the lower end of the isolation ball 31 detonates the detonating tube 6, the detonating tube 6 detonates the detonating tube 7, and the detonating tube 7 finally detonates the warhead charge to complete the projectile initiation process.
If the ball rotor 3 fails to rotate correctly due to reasons (such as foreign matters entering the ball cavity), after the shot hits a target or lands on the ground, a high-temperature and high-pressure gas-solid mixed product generated after the needle-pricked fire cap 23 fires can be reliably transmitted to the input end of the biaxial input flame detonator 32 through at least one of the three blind holes on the isolation ball 31 or through a gap between the ball rotor 3 and the motion cavity thereof, so that the two biaxial input flame detonators 32 fire and explode at an explosion-proof position, and a self-failure (fire-proof) function is realized, thereby ensuring the safety of explosive treatment.
Claims (5)
1. A rigid shear recoil safety mechanism with a reverse recovery function comprises a ball seat (43), an inertia body (42) and two shear pins (41); a second-step stepped hole which penetrates through the ball seat (43) along the axial direction is formed in the center of the ball seat, and is a first-step hole and a second-step hole from top to bottom in sequence, wherein a first transverse through hole which penetrates through the axis along the radial direction is formed in the wall surface of the second-step hole; the inertia body (42) consists of three-step cylinders which are a first cylinder, a second cylinder and a third cylinder from top to bottom in sequence, wherein the second cylinder is provided with a second transverse through hole which penetrates through the axis along the radial direction; a second cylinder on the inertial body (42) is arranged in a second step hole of the ball seat (43) in a clearance fit manner, two identical shear pins (41) respectively penetrate through a first transverse through hole on the ball seat (43) and extend into a second transverse through hole on the inertial body (42) in a clearance fit manner, and the inertial body (42) is fixed at a safety position, namely, the movement of a protected piece to a position in an aligned state can be prevented; the inertia body (42) can move downwards under the action of the squat overload to shear the shear pin (41) and release the protected piece; it is characterized in that the center of the bottom end of the ball seat (43) is also provided with a third step hole which is coaxial with the second step hole on the ball seat, the diameter of the third step hole is larger than that of the second step hole, the inertial body (42) moves downwards until the bottom end surface of the second cylinder is flush with the bottom surface of the ball seat (43), a second transverse through hole of the inertia body (42) is lower than the bottom of a third step hole on the ball seat (43), and two sections of shear pins (41) are positioned in the second transverse through hole of the inertia body (42) and move downwards together with the inertia body (42), after the projectile flies out of the muzzle to the end of the later effect period, the projectile moves outwards along the radial direction under the action of centrifugal force and partially extends into a third-order hole on the ball seat (43), so that the inertial body (42) is ensured not to move forwards under the action of crawling force and nutation force and recover the insurance of the insured piece, and the reverse recovery function is realized.
2. A fuze applying the rigid shear recoil safety mechanism with the anti-recovery function of claim 1, wherein the fuze has the self-failure or fire-insulation characteristic and comprises a body (1), a percussion trigger mechanism (2), a ball rotor (3), a rigid shear recoil safety mechanism (4) with the anti-recovery function, a split ring (8), a detonating tube (6) and a detonating tube (7); the impact type trigger mechanism (2) is coaxially arranged at the top end of the body (1); the ball rotor (3) comprises an isolation ball (31) and two biaxial input flame detonators (32); one end of the biaxial input flame detonator (32) is a flame input end, and the other end of the biaxial input flame detonator is a flame input end and an output end; the left side and the right side of the isolation ball (31) are respectively provided with a first transverse blind hole, a first connecting hole is arranged between the two first transverse blind holes, and the input ends of the two biaxial input flame detonators (32) are outwards arranged in the two first transverse blind holes of the isolation ball (31) respectively; the split ring (8) is a centrifugal safety part of the ball rotor (3) and is clamped outside a crescent notch at the lower end of the isolation ball (31) to realize one safety of the ball rotor (3), namely centrifugal safety; the booster (7) is fixed at the rear end of the detonating tube (6), and part of the booster protrudes out of the lower end face of the body (1) and is used for amplifying detonation energy output by the detonating tube (6) during the action of a detonator so as to detonate the warhead of the projectile to charge; the method is characterized in that: the rigid shearing recoil safety mechanism (4) with the reverse recovery function is coaxially arranged at the rear end of the ball rotor (3), the rigid shearing recoil safety mechanism (4) with the reverse recovery function comprises a ball seat (43), an inertial body (42) and two shearing pins (41), the body (1), the ball rotor (3) and the ball seat (43) jointly form an explosion-proof and delay release safety mechanism (5), and the body (1) and the ball seat (43) jointly form an accommodating and moving chamber of the ball rotor (3); the upper end surface of the inertia body (42) abuts against the bottom end of the isolation ball (31) to realize another safety for the ball rotor (3), namely a recoil safety; the detonating tube (6) and the recoil safety mechanism (4) are designed coaxially and integrally, so that the inertia body (42) is ensured to realize safety on the ball rotor (3) and normal detonation of a fuse explosion sequence is not influenced.
3. The fuze for a rigid shear recoil safety mechanism of claim 2, wherein: a plurality of same blind holes are uniformly arranged on the isolating ball (31) in a radial direction in a symmetrical plane passing through the center of the ball and perpendicular to the detonator shaft and lead to the first connecting hole on the isolating ball (31), and the gap between the ball rotor (3) and the moving cavity of the ball rotor is larger, so that the high-temperature and high-pressure gas-solid mixed product of the needle-punched ignition cap (23) of the impact type trigger mechanism (2) can be reliably transmitted to the input end of the flame detonator (32) through at least one of the blind holes or the gap between the ball rotor (3) and the moving cavity of the ball rotor after the impact type trigger mechanism (2) fires even under the condition that the ball rotor (3) is not rotated rightly, and the detonator can realize the self-failure or fire-insulating function.
4. The fuze for a rigid shear recoil safety mechanism of claim 2, wherein: the explosion-proof fuse is characterized in that the bottom end opening of the body (1) is further fixed with the explosion-proof tube (7) in a closing-up mode, so that the axial connection strength between the explosion-proof tube (7) and the body (1) which has obvious influence on the explosion-proof safety of the fuse is improved.
5. The fuze for a rigid shear recoil safety mechanism of claim 2, wherein: the bottom end of the impact type trigger mechanism (2) is provided with a section of cavity, which is a fire transmission channel when the impact type trigger mechanism (2) is fired and output, and is a release space of the inner cavity pressure of the explosion-proof and delay relief mechanism (5) in an explosion-proof state, and the explosion-proof safety problem of a fuse is favorably solved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274085.2A CN113432494B (en) | 2021-03-15 | 2021-03-15 | Rigid shearing recoil safety mechanism with anti-recovery function and fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110274085.2A CN113432494B (en) | 2021-03-15 | 2021-03-15 | Rigid shearing recoil safety mechanism with anti-recovery function and fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113432494A CN113432494A (en) | 2021-09-24 |
| CN113432494B true CN113432494B (en) | 2022-05-20 |
Family
ID=77752836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110274085.2A Active CN113432494B (en) | 2021-03-15 | 2021-03-15 | Rigid shearing recoil safety mechanism with anti-recovery function and fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113432494B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114508975B (en) * | 2022-02-15 | 2023-10-13 | 南京理工大学 | Fuse rigid safety inertial motion mechanism for reducing friction influence of shearing section |
| CN115265297B (en) * | 2022-08-18 | 2023-10-13 | 南京理工大学 | Fuse single magnetic safety ball movement reversible safety mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908572A (en) * | 2006-08-16 | 2007-02-07 | 长安汽车（集团）有限责任公司 | Full insurance type artificial rain bullet detonator |
| CN101413773A (en) * | 2008-11-14 | 2009-04-22 | 长安汽车（集团）有限责任公司 | Steel plastic combined artificial rain bullet detonator |
| CN111879191A (en) * | 2020-06-30 | 2020-11-03 | 南京理工大学 | Mortar shell warhead mechanical trigger fuse with penetration time self-adapting function |
| CN111928742A (en) * | 2020-06-30 | 2020-11-13 | 南京理工大学 | Fuse for improving reliability of floor wiping explosion and self-destruction |
| CN112066826A (en) * | 2020-08-19 | 2020-12-11 | 南京理工大学 | Mechanical trigger fuse for small-caliber rotary shell warhead |
-
2021
- 2021-03-15 CN CN202110274085.2A patent/CN113432494B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1908572A (en) * | 2006-08-16 | 2007-02-07 | 长安汽车（集团）有限责任公司 | Full insurance type artificial rain bullet detonator |
| CN101413773A (en) * | 2008-11-14 | 2009-04-22 | 长安汽车（集团）有限责任公司 | Steel plastic combined artificial rain bullet detonator |
| CN111879191A (en) * | 2020-06-30 | 2020-11-03 | 南京理工大学 | Mortar shell warhead mechanical trigger fuse with penetration time self-adapting function |
| CN111928742A (en) * | 2020-06-30 | 2020-11-13 | 南京理工大学 | Fuse for improving reliability of floor wiping explosion and self-destruction |
| CN112066826A (en) * | 2020-08-19 | 2020-12-11 | 南京理工大学 | Mechanical trigger fuse for small-caliber rotary shell warhead |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113432494A (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112066826B (en) | Mechanical trigger fuse for small-caliber rotary shell warhead | |
| CN111879191B (en) | Mortar shell warhead mechanical trigger fuse with penetration time self-adapting function | |
| CN113405412B (en) | Safety large-diameter explosive cartridge warhead mechanical trigger fuse | |
| CA1171733A (en) | Practice projectile | |
| CN113865449B (en) | Mechanical trigger fuze for bottom of grenade of line-bore artillery | |
| CN113432494B (en) | Rigid shearing recoil safety mechanism with anti-recovery function and fuse | |
| CN113405413B (en) | Mechanical trigger fuse for small-caliber rotary shell warhead | |
| CN113916071B (en) | Pressed artillery grenade small-mouth screw warhead mechanical trigger fuse capable of realizing redundant ignition | |
| CN114111471B (en) | Multi-path parallel electromechanical trigger fuze for rotary rocket warhead | |
| CN113218258B (en) | Rotating rocket projectile warhead mechanical trigger fuse with self-destruction and floor-scrubbing blasting functions | |
| CN112945031A (en) | Mechanical trigger fuse for insensitive warhead of cannonball | |
| CN113405415B (en) | Rotary bullet detonator explosion-proof mechanism with recovery insurance and insensitive characteristic | |
| US10969212B1 (en) | Multipurpose munition for personnel and materiel defeat | |
| CN205373548U (en) | Secondary kills and wounds arrow device | |
| EP0084095B1 (en) | Ballistic propulsion system for rifle grenades and similar projectiles | |
| US10502537B1 (en) | Enhanced terminal performance medium caliber multipurpose traced self-destruct projectile | |
| CN114370796B (en) | Small-caliber rotary bullet mechanical trigger fuze with safe explosive treatment after misfire | |
| CN114111470B (en) | Mechanical trigger fuse for preventing bullet of large and medium caliber rotating cannonball from ballistic explosion | |
| CN114963899B (en) | Safety type forest rocket fire extinguishing bomb warhead mechanical trigger fuze | |
| CN115682845B (en) | Mechanical triggering fuze for bottom of blasting bullet of penetration blasting primary and secondary bullet | |
| CN116697834A (en) | Safe medium caliber explosion bullet with bullet mechanical trigger fuze | |
| CN113587748B (en) | High-reliability artillery artificial hail-suppression rain-enhancement bomb time fuse | |
| CN114279279B (en) | Medium-and-large-caliber line bore artillery grenade trigger fuze system with good ballistic safety | |
| RU2422764C1 (en) | Nose fuse | |
| RU2412426C1 (en) | Nose fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |