CN113503769B - Impact force measurement experimental device based on light gas gun and installation method thereof - Google Patents
Impact force measurement experimental device based on light gas gun and installation method thereof Download PDFInfo
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- CN113503769B CN113503769B CN202110818883.7A CN202110818883A CN113503769B CN 113503769 B CN113503769 B CN 113503769B CN 202110818883 A CN202110818883 A CN 202110818883A CN 113503769 B CN113503769 B CN 113503769B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A31/00—Testing arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
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Abstract
An impact force measurement experimental device based on a light gas gun and an installation method thereof belong to the technical field of experimental equipment. The incident plate and three protection plates are fixed on four sides of the target cabin bearing frame, the chute bottom plate is fixedly connected with the bottom of the target cabin bearing frame, the separation flange is fixed at a central circular hole of the incident plate, and the middle part of the separation flange is provided with an entry hole; the sliding chute top plate is fixed at the upper end of the target cabin bearing frame; the lower end of the sliding rod with the groove penetrates through the sliding groove top plate to be arranged in the target bin, and the lower connecting sliding block at the lower end of the sliding rod with the groove is arranged in the sliding groove II of the sliding groove bottom plate; the upper connecting sliding block is arranged in the sliding groove top plate in a sliding manner, penetrates into the sliding rod with the groove, and is connected with the upper connecting sliding block; a sensor top block is fixed in the chute top plate, and an impact force sensor is arranged in the sensor top block; an impact force sensor is arranged between the second chute of the chute bottom plate and the lower connecting slide block; the first target plate clamp is connected with the grooved slide bar, and a target plate is fixed between the first target plate clamp and the second target plate clamp. The invention is used for measuring the impact force.
Description
Technical Field
The invention belongs to the technical field of experimental equipment, and particularly relates to an impact force measurement experimental device based on a light gas gun and an installation method thereof.
Background
In experiments and engineering, impact load often occurs, and for measurement of impact force in impact experiments, direct measurement is difficult due to interaction between an impact body and an impacted body, and currently, universal and simple equipment is not available for completing measurement of impact force after impact contact in impact experiments.
In 2018, gong Jun et al published a method for measuring instantaneous impact force (patent application number: 201810377692. X), which can realize the measurement of instantaneous impact force. However, the experimental device mainly depends on the pendulum bob, is only suitable for testing the strip-shaped test sample under low-speed impact load, is difficult to simultaneously research the warhead and the target plate, cannot perform variable-angle impact experiments, and has great limitation.
Therefore, the variable-angle impact force measurement experiment implementation device based on light gas gun loading is simple in structure, convenient to install, high in test efficiency and suitable for the impact test of the load working conditions that bullets with different material shapes and different speeds impact target plates with different boundary conditions from different angles and applied to various light gas guns and has important significance. The invention provides an impact force measurement experimental device based on a light gas gun and an installation method thereof, wherein the impact force measurement experimental device is suitable for an impact test of loading conditions that bullets with different material shapes and different speeds impact target plates with different boundary conditions from different angles.
Disclosure of Invention
The invention aims to provide an impact force measurement experimental device based on a light gas gun and an installation method thereof, which are suitable for impact tests of different-material-shaped warheads with different speeds and under load working conditions of impacting target plates with different boundary conditions from different angles.
In order to realize the purpose, the technical scheme adopted by the invention is as follows:
the impact force measurement experimental device based on the light gas gun comprises an incident plate, a separation flange, a chute top plate, at least one lower connecting slide block, a target cabin bearing frame, a chute bottom plate, three protection plates, at least one grooved slide bar, at least one sensor top block, at least two impact force sensors, at least one upper connecting slide block, a first target plate clamp and a second target plate clamp;
the separation flange is fixed at the central circular hole of the incidence plate, and the middle part of the separation flange is provided with an incidence hole for target bullets to pass through; the opening direction of the first sliding chute of the sliding chute top plate is the same as the axis direction of the perforating hole, a first through groove is formed in the side wall of the first sliding chute of the sliding chute top plate along the length direction, and a second through groove is formed in the position, corresponding to the first sliding chute, on the plate surface of the sliding chute top plate; the second sliding groove of the sliding groove bottom plate corresponds to the first sliding groove of the sliding groove top plate; the lower end of the grooved slide bar penetrates through a first chute and a second chute of the chute top plate and is arranged in a target cabin enclosed by a target cabin bearing frame, the chute top plate, a chute bottom plate, an incidence plate and three protection plates, and a lower connecting slide block is fixed at the lower end of the grooved slide bar and is arranged in the second chute of the chute bottom plate in a sliding manner; the upper connecting sliding block is arranged in a first sliding groove of the sliding groove top plate in a sliding manner, a middle sliding block of the upper connecting sliding block penetrates into a vertical groove of the sliding rod with the groove, an upper long groove and a lower long groove are arranged on the upper connecting sliding block along the horizontal direction, and the sliding rod with the groove is detachably connected with the upper long groove and the lower long groove of the upper connecting sliding block respectively; a sensor top block is fixed at the front end in the first sliding groove of the sliding groove top plate, and an impact force sensor is arranged in the sensor top block; an impact force sensor is arranged between the second chute of the chute bottom plate and the lower connecting slide block; the first target plate clamp is detachably connected with the rear side face of the grooved slide rod, a target plate is arranged between the second target plate clamp and the first target plate clamp, the second target plate clamp is fixedly connected with the first target plate clamp in a fastening mode and clamps the target plate, and the preset impact position of the target plate corresponds to the incident hole of the separation flange.
The installation method of the impact force measurement experiment device based on the light gas cannon comprises the following steps:
step one; selecting a proper separation flange according to the maximum outer diameter of the target projectile, placing the separation flange on an incidence plate, fixedly installing the incidence plate on one side of a target cabin bearing frame, and fixedly installing a chute bottom plate at the bottom of the target cabin bearing frame;
step two; fixedly mounting a sliding chute base plate on a bottom foundation, placing a lower connecting sliding block into a sliding chute II of the sliding chute base plate, and fixedly mounting the lower end of a sliding rod with a groove and the lower connecting sliding block;
step three; a sliding rod with a groove penetrates through the sliding chute top plate, and the sliding chute top plate is installed on the upper part of the target cabin bearing frame;
step four; the upper connecting sliding block slides in along a sliding groove I of a sliding groove top plate and is inserted into a grooved sliding rod, the aim of adjusting the target inclination angle of the target plate is achieved by adjusting the inclination angle of a connecting line between the upper connecting sliding block and the lower connecting sliding block, a bolt between the upper connecting sliding block and the grooved sliding rod is screwed down, and meanwhile, the bolt between the upper connecting sliding block and the sliding groove top plate is unscrewed; then sequentially sliding the impact force sensor and the sensor top block into the upper connecting slide block along the first chute of the chute top plate until the impact force sensor is in weak contact with the upper connecting slide block, tightly connecting the sensor top block with the chute top plate through a bolt, and finally placing the impact force sensor between the second chute of the chute bottom plate and the lower connecting slide block;
step five; fixing the first target plate clamp on the rear side face of the grooved slide bar through bolts, fixing the target plate between the first target plate clamp and the second target plate clamp through bolt clamping, adjusting the installation position through a visual or laser focusing device, always keeping the preset impact position of the target plate and the circle center connecting line of the penetration hole coincident in the speed direction of the target projectile, and finally fixedly installing three protection plates on the other three sides of the target cabin force bearing frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) The target plate has sufficient selection space, and can be suitable for medium-high and low-speed impact experiments of plate-shaped target plates with various sizes, different shapes and different boundary conditions;
(2) The target bomb selection space is abundant, and target bombs of various shapes and materials can be suitable for low, medium and high speed experiments loaded by the device in the range of light-weight target bombs;
(3) For example, if the connecting line of the upper connecting slide block and the lower connecting slide block is vertical, the target plate is also vertical, and the impact angle is zero, namely positive impact, and if the included angle between the connecting line of the upper connecting slide block and the lower connecting slide block and the vertical direction is 30 degrees, the target plate is also inclined by 30 degrees), the impact experiment can be carried out, and the range of the selectable angles is wider;
(4) Whether the target projectile is used as a research object or the target plate is used as a research object, or the target projectile and the target plate are simultaneously used as the research objects, the impact force magnitude and curve can be conveniently, quickly and accurately represented;
(5) The whole device is convenient to mount and dismount, high in test efficiency and easy to realize batch execution of variable-angle low-medium-high-speed impact experiments of target plates and target bombs of various types.
Drawings
FIG. 1 is an isometric view of the light gas gun based impact force measurement test device of the present invention;
fig. 2 is a top view of the upper connecting slider.
The names and reference numbers of the components referred to in the above figures are as follows:
the device comprises an incident plate 1, a separating flange 2, an incident hole 2-1, a chute top plate 3, a chute I3-1, a through groove I3-2, a lower connecting slide block 4, a target cabin bearing frame 5, a chute bottom plate 6, a chute II 6-1, a protection plate 7, a grooved slide bar 8, a vertical groove 8-1, a lug 8-2, a sensor top block 9, a groove 9-1, an impact force sensor 10, an upper connecting slide block 11, an upper long groove 11-1, a lower long groove 11-2, a middle slide block 11-3, a side slide block 11-4, a target plate 12, a target plate clamp I13 and a target plate clamp II 14.
Detailed Description
The first specific implementation way is as follows: as shown in fig. 1 and 2, the present embodiment discloses an impact force measurement experimental apparatus based on a light gas gun, which includes an incident plate 1, a separation flange 2, a chute top plate 3, at least one lower connecting slide block 4, a target cabin bearing frame 5, a chute bottom plate 6, three protection plates 7, at least one grooved slide bar 8, at least one sensor top block 9, at least two impact force sensors 10, at least one upper connecting slide block 11, a first target plate clamp 13 and a second target plate clamp 14;
the incidence plate 1 is fixed on one side of the target cabin bearing frame 5 (the incidence plate 1 can prevent target bullets with high residual speed from rebounding to damage equipment and hurt experimenters), the chute bottom plate 6 is fixedly connected with the bottom of the target cabin bearing frame 5 (through a plurality of bolts), the chute top plate 3 is fixed on the upper end of the target cabin bearing frame 5 (through a plurality of bolts), the rest three sides of the target cabin bearing frame 5 are sealed through the protection plate 7, the middle part of the incidence plate 1 is provided with a central circular hole, the separation flange 2 is fixed at the central circular hole of the incidence plate 1, the middle part of the separation flange 2 is provided with an incidence hole 2-1 for the target bullets to pass through (the target bullets can be ensured to be incident from the middle of the separation flange 2 to impact the target plate 12, and the influence of moment in the impact process is eliminated); the opening direction of a first chute 3-1 of the chute top plate 3 is the same as the axial direction of the inlet hole 2-1, a first through groove 3-2 is formed in the side wall of the first chute 3-1 of the chute top plate 3 along the length direction, and a second through groove is formed in the position, corresponding to the first chute 3-1, on the plate surface of the chute top plate 3; the second chute 6-1 of the chute bottom plate 6 corresponds to the first chute 3-1 of the chute top plate 3; the lower end of the grooved slide bar 8 penetrates through a first chute 3-1 and a second chute of the chute top plate 3 and is arranged in a target cabin enclosed by a target cabin bearing frame 5, the chute top plate 3, a chute bottom plate 6, an incident plate 1 and three protection plates 7, a lower connecting slide block 4 is fixed at the lower end of the grooved slide bar 8, and the lower connecting slide block 4 is slidably arranged in a second chute 6-1 of the chute bottom plate 6; the upper connecting slide block 11 is arranged in a first slide groove 3-1 of the slide groove top plate 3 in a sliding manner, a middle slide block 11-3 of the upper connecting slide block 11 penetrates into a vertical groove 8-1 of the slide rod 8 with grooves, an upper long groove 11-1 and a lower long groove 11-2 are arranged on the upper connecting slide block 11 along the horizontal direction, and the slide rod 8 with grooves is detachably connected with the upper long groove 11-1 and the lower long groove 11-2 of the upper connecting slide block 11 (through bolts) respectively; a sensor top block 9 is fixed at the front end (through a bolt) in a chute I3-1 of the chute top plate 3, and an impact force sensor 10 is arranged in the sensor top block 9; an impact force sensor 10 is arranged between the second chute 6-1 of the chute bottom plate 6 and the lower connecting slide block 4; the first target plate clamp 13 is detachably connected with the rear side face of the grooved slide bar 8 (through bolts), a target plate 12 is arranged between the second target plate clamp 14 and the first target plate clamp 13, the second target plate clamp 14 and the first target plate clamp 13 are fixedly connected through bolts to clamp the target plate 12, and the preset impact position of the target plate 12 is arranged corresponding to the penetration hole 2-1 of the separation flange 2 (when the target plate 12 is installed, the preset impact point needs to be ensured to be aligned to the penetration hole 2-1 of the separation flange 2, so that the generation of moment caused by impact error can be effectively eliminated).
The chute roof 3 has two main functions: and limiting and positioning. The limiting function is to limit the freedom of the grooved slide bar 8 passing through the chute top plate 3 from six to three (without considering the chute bottom plate 6), that is, only two translational freedom degrees and one rotational freedom degree are left (as shown in fig. 1, if the chute top plate 3 is not provided, the grooved slide bar 8 can have rotational freedom degrees in three directions of XYZ and translational freedom degrees in three directions of XYZ, but the grooved slide bar 8 loses the rotational freedom degree in the X direction, the rotational freedom degree in the Z direction and the translational freedom degree in the Y direction, and only the translational freedom degree in the X direction, the translational freedom degree in the Z direction and the rotational freedom degree in the Y direction are left due to the limiting function of the chute top plate 3 and the chute top plate 3). Meanwhile, the upper connecting sliding block 11 is ensured to only slide along the first sliding groove 3-1 of the sliding groove top plate 3, so that the grooved sliding rod 8 can be fixed by matching the upper long groove 11-1 and the lower long groove 11-2 of the upper connecting sliding block 11, the degree of freedom of the grooved sliding rod 8 is further limited, and the grooved sliding rod 8 can only translate along the first sliding groove 3-1 of the sliding groove top plate 3. Another function is positioning, fastening the sensor top block 9 into the chute one 3-1 of the chute top plate 3 by means of bolts, placing the impact force sensor 10 in the sensor top block 9, the impact force sensor 10 contacting the upper connecting slide 11, also defining the last degree of freedom of the grooved slide 8, so that the impact force of the target projectile impacting the target plate 12 is characterized by the force measured by the impact force sensor 10 via the reaction force generated by the impact force sensor 10.
The impact angle is adjusted by adjusting the relative position of the upper connecting slide block 11 and the lower connecting slide block 4.
Lower link block 4 is formed by cuboid and the combination of the halfcylinder as an organic whole with the cuboid, it has the bolted connection hole to open on the halfcylinder (link block 4's effect down is connected to the lower extreme of trough of belt slide bar 8 on spout bottom plate 6, makes trough of belt slide bar 8 be in the over-restraint state, similar with link block 11's on the top effect, further makes trough of belt slide bar 8 freely slide along spout one 3-1 of spout roof 3 and spout two 6-1 of spout bottom plate 6 under the impact force effect, eliminates the production of the moment that the impact force arouses simultaneously.
The second embodiment is as follows: as shown in fig. 1, the first embodiment is further described, the target capsule carrier 5 is a rectangular parallelepiped frame, and each beam of the rectangular parallelepiped frame is made of square steel; the rectangular parallelepiped frame has a length to height ratio (which determines the range of impact angles measured) of
(the adjustable range of the impact angle is 30-90 degrees at this time). Definition of the angle of impact: the impact direction vector of the target projectile and the normal vector of the target plate surface form an acute angle or a right angle, and the impact angle is 90 degrees, namely positive impact.
The third concrete implementation mode: as shown in fig. 1, this embodiment is further described with respect to the first embodiment, the separating flange 2 is in the shape of a two-section stepped shaft (the separating flange 2 is used to ensure the smooth incidence of the target projectile and prevent the projectile holder from entering the target compartment, the outer diameter of the projectile holder is larger than the diameter of the penetrating hole 2-1 of the separating flange 2), and the small-diameter end of the separating flange 2 is fixedly arranged in the central circular hole of the incidence plate 1.
The fourth concrete implementation mode: as shown in fig. 1, in this embodiment, a third embodiment is further described, the chute top plate 3 is formed by combining a rectangular top plate and two pairs of L-shaped angle steels, one side plate surface of each pair of angle steels faces upward horizontally and is oppositely arranged to form a group of first chutes 3-1, two groups of first chutes 3-1 are symmetrically distributed and fixed on the rectangular top plate, and the rectangular top plate is fixed at the upper end of the target cabin bearing frame 5 (through a plurality of bolts);
the chute bottom plate 6 comprises a rectangular bottom plate, the rectangular bottom plate is fixedly connected with the bottom of the target cabin bearing frame 5 (through a plurality of bolts), two chutes two 6-1 are arranged on the rectangular bottom plate, the two chutes two 6-1 and the two chutes one 3-1 are arranged in a one-to-one correspondence mode (the two chutes two 6-1 play a role in guiding the sliding direction of the lower connecting slide block 4. Meanwhile, the chute bottom plate 6 has a certain thickness, and after the target cabin bearing frame 5 is fastened to the bottom foundation through the bolts, the target cabin bearing frame 5 is placed on the chute bottom plate 6 in a matching mode, and the effect of fixing the target cabin bearing frame 5 is also played.
The fifth concrete implementation mode is as follows: as shown in fig. 1, in this embodiment, a fourth embodiment is further described, where the number of the lower connecting slide block 4, the grooved slide bar 8, the upper connecting slide block 11, and the sensor top block 9 is two, and the number of the impact force sensors 10 is four; the lower end of each grooved slide bar 8 penetrates through a first chute 3-1 and a second chute of the corresponding chute top plate 3 and is arranged in the target bin, a lower connecting slide block 4 is fixed at the lower end of each grooved slide bar 8, and the two lower connecting slide blocks 4 are arranged in two chutes 6-1 of a chute bottom plate 6 in a sliding manner;
the two upper connecting sliding blocks 11 are arranged in two groups of sliding grooves I3-1 of the sliding groove top plate 3 in a sliding mode, the middle sliding block 11-3 of each upper connecting sliding block 11 penetrates into the corresponding vertical groove 8-1 of the corresponding sliding rod 8 with the groove, and each sliding rod 8 with the groove is detachably connected with the corresponding upper long groove 11-1 and the corresponding lower long groove 11-2 of the upper connecting sliding block 11 (through bolts).
The sixth specific implementation mode is as follows: as shown in FIG. 1, in this embodiment to further explain the first or fifth embodiment, a pair of lugs 8-2 is fixed to the lower end of the grooved slide bar 8, and the lower connecting slider 4 is disposed between the pair of lugs 8-2 and is fixedly connected to the pair of lugs 8-2 (by bolts).
The seventh embodiment: as shown in fig. 1, this embodiment is further described as a first embodiment, the cross section of the grooved slide bar 8 is square, and two opposite side surfaces of the grooved slide bar 8 are respectively provided with a through vertical groove 8-1.
The specific implementation mode is eight: as shown in fig. 1, in this embodiment, a first specific embodiment is further described, the sensor top block 9 is in a square shape, a groove 9-1 is formed in one side of the upper surface of the sensor top block 9, a bolt hole is formed in a side surface corresponding to the groove 9-1, an impact force sensor 10 arranged in a chute one 3-1 of the chute top plate 3 is placed in the groove 9-1, and the sensor top block 9 is fixedly connected with the chute top plate 3 through a bolt penetrating through the bolt hole.
The specific implementation method nine: as shown in fig. 1 and 2, in this embodiment, a first specific embodiment is further described, the upper connecting slider 11 is shaped like a Chinese character 'shan' (geometrically symmetric), the middle slider 11-3 of the upper connecting slider 11 is provided with an upper elongated slot 11-1 along the horizontal direction, two side sliders 11-4 of the upper connecting slider 11 are provided with a lower elongated slot 11-2 along the horizontal direction, the slotted slider 8 and the upper connecting slider 11 are fixedly connected by bolts penetrating into the upper elongated slot 11-1 and the vertical slot 8-1 and bolts penetrating into the first sliding slot 3-1, the lower elongated slot 11-2 and the vertical slot 8-1 (the upper connecting slider 11 and the lower connecting slider 4 are fixedly connected with the slotted slider 8, and the three can be regarded as a whole, and the whole has only one translational degree of freedom capable of sliding along the first sliding slot 3-1 of the top plate sliding slot 3 and the second sliding slot 6-1 of the bottom plate sliding slot 6).
The detailed implementation mode is ten: as shown in fig. 1 and 2, the present embodiment discloses a method for installing an impact force measurement experiment device based on a light gas gun according to any one of the first to ninth embodiments, the method includes the following steps:
step one; selecting a proper separation flange 2 according to the maximum outer diameter of the target projectile, placing the separation flange 2 on an incident plate 1, fixedly installing the incident plate 1 at one side of a target cabin bearing frame 5 (through bolts), and fixedly installing a chute bottom plate 6 at the bottom of the target cabin bearing frame 5 (through bolts);
step two; fixedly mounting a chute base plate 6 (by using bolts) on a bottom foundation, placing a lower connecting slide block 4 into a chute II 6-1 of the chute base plate 6, and fixedly mounting the lower end of a sliding rod 8 with a groove and the lower connecting slide block 4 (by using bolts);
step three; a sliding rod 8 with a groove penetrates through the chute top plate 3, and the chute top plate 3 is arranged at the upper part of the target cabin bearing frame 5;
step four; sliding an upper connecting slide block 11 into a chute I3-1 of a chute top plate 3, inserting the upper connecting slide block into a chute slide rod 8 with a chute, adjusting the inclination angle of a connecting line between the upper connecting slide block 11 and a lower connecting slide block 4 to achieve the purpose of adjusting the inclination target angle of a target plate 12, screwing bolts between the upper connecting slide block 11 and the chute slide rod 8 with the chute, and simultaneously unscrewing bolts between the upper connecting slide block 11 and the chute top plate 3; then sequentially sliding the impact force sensor 10 and the sensor top block 9 into the chute I3-1 of the chute top plate 3 until the impact force sensor 10 is in no contact with the upper connecting slide block 11, tightly connecting the sensor top block 9 with the chute top plate 3 through bolts, and finally placing the impact force sensor 10 between the chute II 6-1 of the chute bottom plate 6 and the lower connecting slide block 4;
step five; fixing a first target plate clamp 13 on the rear side surface of the grooved slide bar 8 through bolts, clamping and fixing a target plate 12 between the first target plate clamp 13 and a second target plate clamp 14 through bolts, adjusting the installation position through a visual or laser focusing device, always keeping the preset impact position of the target plate 12 and the circle center connecting line of the perforating inlet 2-1 to be superposed in the target bullet speed direction, and finally fixedly installing three protection plates 7 (respectively through bolts) on the other three sides of the target cabin bearing frame 5.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention.
Claims (10)
1. The utility model provides an impact force measurement experimental apparatus based on light gas big gun which characterized in that: the device comprises an incident plate (1), a separation flange (2), a chute top plate (3), at least one lower connecting slide block (4), a target cabin bearing frame (5), a chute bottom plate (6), three protection plates (7), at least one grooved slide bar (8), at least one sensor top block (9), at least two impact force sensors (10), at least one upper connecting slide block (11), a first target plate clamp (13) and a second target plate clamp (14);
the shooting plate (1) is fixed on one side of the target cabin bearing frame (5), the chute bottom plate (6) is fixedly connected with the bottom of the target cabin bearing frame (5), the chute top plate (3) is fixed at the upper end of the target cabin bearing frame (5), the rest three sides of the target cabin bearing frame (5) are sealed through the protection plate (7), the middle of the shooting plate (1) is provided with a central circular hole, the separation flange (2) is fixed at the central circular hole of the shooting plate (1), and the middle of the separation flange (2) is provided with a shooting hole (2-1) through which a target projectile can pass conveniently;
the opening direction of a first sliding groove (3-1) of the sliding groove top plate (3) is the same as the axial direction of the incident hole (2-1), a first through groove (3-2) is formed in the side wall of the first sliding groove (3-1) of the sliding groove top plate (3) along the length direction, and a second through groove is formed in the position, corresponding to the first sliding groove (3-1), on the plate surface of the sliding groove top plate (3); a second chute (6-1) of the chute bottom plate (6) corresponds to the first chute (3-1) of the chute top plate (3);
the lower end of the grooved slide bar (8) penetrates through a first chute (3-1) and a second chute of the chute top plate (3) and is arranged in a target bin enclosed by a target bin bearing frame (5), the chute top plate (3), a chute bottom plate (6), an incidence plate (1) and three protection plates (7), a lower connecting slide block (4) is fixed at the lower end of the grooved slide bar (8), and the lower connecting slide block (4) is arranged in a second chute (6-1) of the chute bottom plate (6) in a sliding manner; the upper connecting sliding block (11) is arranged in a first sliding groove (3-1) of the sliding groove top plate (3) in a sliding mode, a middle sliding block (11-3) of the upper connecting sliding block (11) penetrates into a vertical groove (8-1) of the sliding rod (8) with a groove, an upper long groove (11-1) and a lower long groove (11-2) are arranged on the upper connecting sliding block (11) along the horizontal direction, and the sliding rod (8) with the groove is detachably connected with the upper long groove (11-1) and the lower long groove (11-2) of the upper connecting sliding block (11) respectively; a sensor top block (9) is fixed at the front end in the chute I (3-1) of the chute top plate (3), and an impact force sensor (10) is arranged in the sensor top block (9); an impact force sensor (10) is arranged between the second chute (6-1) of the chute bottom plate (6) and the lower connecting slide block (4); the rear side face of the first target plate clamp (13) is detachably connected with the grooved slide bar (8), a target plate (12) is arranged between the second target plate clamp (14) and the first target plate clamp (13), the second target plate clamp (14) is fixedly connected with the first target plate clamp (13) in a fastening mode to clamp and fix the target plate (12), and the preset impact position of the target plate (12) is arranged corresponding to the incident hole (2-1) of the separation flange (2).
2. The impact force measurement experimental device based on the light gas gun as claimed in claim 1, characterized in that: the target cabin bearing frame (5) is a cuboid frame, and each beam of the cuboid frame is made of square steel; the length-height ratio of the rectangular frame is
。
3. The impact force measurement experimental device based on the light gas gun as claimed in claim 1, characterized in that: the separating flange (2) is in the shape of two sections of stepped shafts, and the small-diameter end of the separating flange (2) is fixedly arranged in a central circular hole of the incident plate (1).
4. The impact force measurement experimental device based on the light gas gun as claimed in claim 3, characterized in that: the chute top plate (3) is formed by combining a rectangular top plate and two pairs of L-shaped angle steels, one side plate surface of each pair of angle steels is horizontally upward and oppositely arranged to form a group of chute I (3-1), the two groups of chute I (3-1) are symmetrically distributed and fixed on the rectangular top plate, and the rectangular top plate is fixed at the upper end of a target cabin bearing frame (5);
the chute bottom plate (6) comprises a rectangular bottom plate, the rectangular bottom plate is fixedly connected with the bottom of the target cabin bearing frame (5), two chutes II (6-1) are arranged on the rectangular bottom plate, and the two chutes II (6-1) and the two chutes I (3-1) are arranged in a one-to-one correspondence mode.
5. The impact force measurement experimental device based on the light gas cannon according to claim 4, characterized in that: the number of the lower connecting sliding blocks (4), the number of the grooved sliding rods (8), the number of the upper connecting sliding blocks (11) and the number of the sensor top blocks (9) are two, and the number of the impact force sensors (10) is four; the lower end of each grooved slide bar (8) penetrates through a first chute (3-1) and a second chute of the corresponding chute top plate (3) and is arranged in the target bin, a lower connecting slide block (4) is fixed at the lower end of each grooved slide bar (8), and the two lower connecting slide blocks (4) are arranged in the two second chutes (6-1) of the chute bottom plate (6) in a sliding manner;
the two upper connecting sliding blocks (11) are arranged in two groups of first sliding grooves (3-1) of the sliding groove top plate (3) in a sliding mode, the middle sliding block (11-3) of each upper connecting sliding block (11) penetrates into the corresponding vertical groove (8-1) of the corresponding sliding rod (8) with the groove, and each sliding rod (8) with the groove is detachably connected with the corresponding upper long groove (11-1) and the corresponding lower long groove (11-2) of the upper connecting sliding block (11).
6. The light gas gun-based impact force measurement experimental device according to claim 1 or 5, characterized in that: a pair of lugs (8-2) are fixed at the lower end of the grooved sliding rod (8), and the lower connecting sliding block (4) is arranged between the pair of lugs (8-2) and is fixedly connected with the pair of lugs (8-2).
7. The impact force measurement experimental device based on the light gas gun as claimed in claim 1, characterized in that: the section of the sliding rod (8) with the groove is square, and two opposite side surfaces of the sliding rod (8) with the groove are respectively provided with a through vertical groove (8-1).
8. The impact force measurement experimental device based on the light gas gun as claimed in claim 1, characterized in that: the sensor top block (9) is in a square block shape, a groove (9-1) is formed in one side of the upper surface of the sensor top block (9), a bolt hole is formed in one side surface corresponding to the groove (9-1), an impact force sensor (10) arranged in a first sliding groove (3-1) of the sliding groove top plate (3) is placed in the groove (9-1), and the sensor top block (9) is fixedly connected with the sliding groove top plate (3) through a bolt penetrating into the bolt hole.
9. The impact force measurement experimental device based on the light gas gun as claimed in claim 1, characterized in that: the upper connecting sliding block (11) is in a shape of Chinese character 'shan', an upper long groove (11-1) is arranged in the middle sliding block (11-3) of the upper connecting sliding block (11) along the horizontal direction, a lower long groove (11-2) is arranged in the two side sliding blocks (11-4) of the upper connecting sliding block (11) along the horizontal direction, and the sliding rod (8) with the groove is fixedly connected with the upper connecting sliding block (11) through a bolt penetrating into the upper long groove (11-1) and the vertical groove (8-1) and a bolt penetrating into the sliding groove I (3-1), the lower long groove (11-2) and the vertical groove (8-1).
10. A method for installing the experimental device for measuring impact force based on light gas cannon of any one of claims 1-9, which is characterized in that: the installation method comprises the following steps:
step one; selecting a proper separation flange (2) according to the maximum outer diameter of the target projectile, placing the separation flange (2) on an incidence plate (1), fixedly installing the incidence plate (1) on one side of a target cabin bearing frame (5), and fixedly installing a chute bottom plate (6) at the bottom of the target cabin bearing frame (5);
step two; fixedly mounting a sliding chute base plate (6) on a bottom foundation, placing a lower connecting sliding block (4) into a sliding chute II (6-1) of the sliding chute base plate (6), and fixedly mounting the lower end of a sliding rod (8) with a groove and the lower connecting sliding block (4);
step three; a sliding rod (8) with a groove penetrates through the sliding chute top plate (3), and the sliding chute top plate (3) is installed on the upper part of the target cabin bearing frame (5);
step four; the upper connecting sliding block (11) slides in along a first sliding groove (3-1) of a sliding groove top plate (3) and is inserted into a sliding rod (8) with a groove, the aim of adjusting the inclined target angle of the target plate (12) is achieved by adjusting the inclined angle of a connecting line between the upper connecting sliding block (11) and the lower connecting sliding block (4), a bolt between the upper connecting sliding block (11) and the sliding rod (8) with the groove is screwed, and meanwhile, the bolt between the upper connecting sliding block (11) and the sliding groove top plate (3) is unscrewed; then sequentially sliding an impact force sensor (10) and a sensor top block (9) into the sliding chute I (3-1) of the sliding chute top plate (3) until the impact force sensor (10) is in weak contact with the upper connecting slide block (11), fixedly connecting the sensor top block (9) with the sliding chute top plate (3) through bolts, and finally placing the impact force sensor (10) between a sliding chute II (6-1) of the sliding chute bottom plate (6) and the lower connecting slide block (4);
step five; fixing a first target plate clamp (13) on the rear side surface of a grooved slide bar (8) through bolts, clamping and fixing a target plate (12) between the first target plate clamp (13) and a second target plate clamp (14) through bolts, adjusting the installation position through a visual or laser focalizer, always keeping the preset impact position of the target plate (12) and the circle center connecting line of an incident hole (2-1) superposed in the target projectile velocity direction, and finally fixedly installing three protection plates (7) on the other three sides of a target cabin bearing frame (5).
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| KR101386628B1 (en) * | 2011-02-17 | 2014-04-18 | 국방과학연구소 | Gun fixing mount and system for testing fragment impact having thereof |
| CN102192690B (en) * | 2011-04-23 | 2012-04-11 | 中北大学 | Overload test and detection device of gas gun |
| KR101328656B1 (en) * | 2012-04-30 | 2013-11-14 | 부산대학교 산학협력단 | Free fall launching test device |
| CN104237032B (en) * | 2014-10-10 | 2016-06-29 | 绍兴明透装甲材料有限责任公司 | Bullet impulse force on-line detector |
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