A ballistic environment simulation test device

Abstract

The present invention relates to a ballistic environment simulation test device, comprising a rotating module, a rotating arm is installed on the top of the rotating module, the rotating module is suitable for driving the rotating arm to rotate, the rotating modules are installed at both ends of the rotating arm, the rotating module comprises a shell, a rotating body is embedded in the shell, a second rotating shaft is installed between the rotating body and the shell, a bayonet guide hole is provided in the shell, a bayonet is embedded in the bayonet guide hole, a bayonet control module is installed in the middle of the rotating arm, the bayonet control module is suitable for controlling the bayonet to move forward and backward along the direction of the bayonet guide hole, and the bayonet is suitable for controlling the rotating body to release the radial rotation lock. The ballistic environment simulation test device can realize multi-directional loading after one clamping, saves the time of fuze clamping, has high test efficiency, and can simulate the instantaneous loading and overload characteristics of the fuze.

Description

Technical Field

[0001] The invention relates to the technical field of ballistic environment simulation, in particular to a ballistic environment simulation test device. Background Art

[0002] In order to verify the reliability of fuze work at low cost and low time consumption, various simulation test technologies and test devices have emerged, such as: artillery test projectile simulation method, gas gun simulation test method, rocket pry simulation method, centrifuge overload simulation method, etc. Comprehensive comparison, the centrifuge overload simulation method can more realistically simulate the overload condition of the fuze in the whole trajectory, and it is low in cost, easy to operate, and the equipment occupies a small area, which can realize non-destructive acceptance and inspection of the fuze.

[0003] However, although the existing centrifuge overload simulation test technology can control the rotation speed to meet the overload requirements of the fuze, it cannot simulate the characteristics of instantaneous loading overload, and the simulation of the ballistic environment is not realistic. In addition, the fixed clamping method of the clamping device cannot complete the simulation test tasks in multiple directions after one clamping. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a ballistic environment simulation test device which can be loaded in multiple directions and has the characteristics of simulating instantaneous loading and overload.

[0005] The technical solution of the present invention for solving the above-mentioned technical problems is as follows: a ballistic environment simulation test device, comprising a rotation module, a swivel arm is installed on the top of the rotation module, the rotation module is suitable for driving the swivel arm to rotate, rotation modules are installed at both ends of the swivel arm, the rotation module comprises a shell, a rotating body is embedded in the interior of the shell, a second rotating shaft is installed between the rotating body and the shell, a pin guide hole is provided in the interior of the shell, a pin is embedded in the interior of the pin guide hole, a pin control module is installed in the middle of the swivel arm, the pin control module is suitable for controlling the pin to move forward and backward along the direction of the pin guide hole, and the pin is suitable for controlling the rotating body to release the radial rotation lock.

[0006] Preferably, in the above-mentioned ballistic environment simulation test device, a clamping block is fixed on the rotating body, a clamping slot is provided on the clamping block, and the clamping pin is suitable for clamping into and withdrawing from the inside of the clamping slot.

[0007] Preferably, in the above-mentioned ballistic environment simulation test device, the rotating module includes a first rotating shaft, the rotating arm is installed on the top of the first rotating shaft, the first rotating shaft is connected to a power output unit, and the power output unit is suitable for driving the first rotating shaft to rotate.

[0008] Preferably, in the above-mentioned ballistic environment simulation test device, the pin control module includes a second motor, a pull plate is installed on the movable shaft of the second motor, two pull rods are hinged on the pull plate, and the other end of the pull rod is hinged to the pin, and the second motor is suitable for controlling the forward and backward movement of the pin when it rotates.

[0009] Preferably, in the above-mentioned ballistic environment simulation test device, the power output unit includes a first motor, a first pulley is installed on the output shaft end of the first motor, a second pulley is embedded on the outside of the first rotating shaft, and a belt is connected between the first pulley and the second pulley.

[0010] Preferably, in the above-mentioned ballistic environment simulation test device, an end cover is provided at the end of the rotating body, and a clamping cavity is provided inside the rotating body, and the clamping cavity is suitable for loading the fuze.

[0011] Preferably, in the above-mentioned ballistic environment simulation test device, the shell is in a "U"-shaped structure.

[0012] Preferably, in the above-mentioned ballistic environment simulation test device, a spring is embedded in the exterior of the bayonet, one end of the spring abuts against the end of the bayonet guide hole, and the other end of the spring is fixedly connected to the bayonet.

[0013] Preferably, in the above-mentioned ballistic environment simulation test device, the rotating body is equipped with an electrical connector, and the electrical connector is suitable for recording and transmitting overload information.

[0014] The beneficial effects of the present invention are: the rotating module drives the slewing arm and the rotating module to move, the rotating module is first loaded to a preset rotation speed and then the rotating body in the rotating module is released, the rotating body rotates under the rotational torque, because the centrifugal overload is large, the eccentricity value of the rotating body does not need to be too large, and the rotating module can also obtain a large rotational torque and rotational acceleration, the rotating body rotation speed increases rapidly from zero in a short time, simulating the instantaneous loading and overload characteristics of the fuze, and simulating the multi-directional loading characteristics of the fuze while the rotating body rotates. The ballistic environment simulation test device can realize multi-directional loading after one clamping, saving the fuze clamping time, high testing efficiency, and can simulate the instantaneous loading and overload characteristics of the fuze. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the connection structure between the slewing arm and the rotating module in the present invention;

[0016] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 3 A top view of the slewing arm and the rotating module of the present invention when in operation;

[0018] Figure 4 for Figure 1 A partial enlarged view of point A in the middle.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Box body, 2. First motor, 3. First pulley, 4. Belt, 5. Second pulley, 6. First rotating shaft, 7. Rotating arm, 8. Rotating module, 81. Shell, 82. Second rotating shaft, 83. Rotating body, 84. Slot, 85. Spring, 86. Pin, 87. End cover, 88. Electrical connector, 89. Block, 810. Clamping cavity, 811. Bearing, 812. Position verification sensor, 9. Support plate, 10. Control box, 11. Box cover, 12. Cavity, 13. Second motor, 14. Pull plate, 15. Pull rod. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] like Figure 1 , Figure 2 , Figure 3 As shown, a ballistic environment simulation test device includes a box body 1, a rotating module is installed inside the box body 1, the rotating module includes a first rotating shaft 6, a power output unit, the power output unit includes a first motor 2, a first pulley 3 is installed on the output shaft end of the first motor 2, a second pulley 5 is embedded outside the first rotating shaft 6, and a belt 4 is connected between the first pulley 3 and the second pulley 5. Two support plates 9 are fixed horizontally inside the box body 1, and the first motor 2 is fixed on the lower support plate 9. The first rotating shaft 6 runs through the inside of the two support plates 9, and the first pulley 3 and the second pulley 5 are both located on the lower side of the bottom support plate 9. The swivel arm 7 is installed on the top of the first rotating shaft 6, and the swivel arm 7 is a rectangular strip structure. A latch control module is installed in the middle of the swivel arm 7. The bayonet control module includes a second motor 13, a cavity 12 is provided on the top of the first rotating shaft 6, the second motor 13 is installed inside the cavity 12, the output shaft of the second motor 13 passes through the inside of the rotating arm 7, a pull plate 14 is installed on the movable shaft of the second motor 13, two pull rods 15 are hinged on the pull plate 14, and the other end of the pull rod 15 is hinged with the bayonet 86. A box cover 11 is installed on the top of the box body 1. When the device is running, the box cover 11 is covered to ensure the safety of the test and reduce the noise during operation. A control box 10 is installed outside the box body 1, and the control box 10 is used to control the operation inside the box body 1.

[0023] like Figure 4As shown, both ends of the swivel arm 7 are equipped with a rotating module 8, and the rotating module 8 includes a shell 81, and the shell 81 is a "U"-shaped structure. An electric connector 88 is installed on the rotating body 83, and the electric connector 88 is suitable for recording and transmitting overload information. The shell 81 is fixedly connected to the swivel arm 7, and the rotating body 83 is embedded in the shell 81. The end of the rotating body 83 is provided with an end cover 87, and the interior of the rotating body 83 is provided with a clamping cavity 810, and the clamping cavity 810 is suitable for loading the fuse. The rotating body 83 is cylindrical, and one axial end of the cylindrical rotating body 83 is an internal threaded hole, which can be matched with the external thread of the end cover 87. Tightening the end cover 87 can fasten the fuse in the clamping cavity 810. A second rotating shaft 82 is installed on the upper and lower parts of the barrel of the rotating body 83, and a bearing 811 is provided between the second rotating shaft 82 and the shell 81. The second rotating shaft 82 is pressed on the barrel of the rotating body 83, perpendicular to the barrel axis and coaxial with each other, and the rotating body 83 together with the fuse can rotate around the axis of the second rotating shaft 82. A bayonet guide hole is provided inside the housing 81, and a bayonet 86 is embedded inside the bayonet guide hole. A spring 85 is embedded outside the bayonet 86, one end of the spring 85 abuts against the end of the bayonet guide hole, and the other end of the spring 85 is fixedly connected to the bayonet 86. Two clamping blocks 89 are fixed on the rotating body 83, and both clamping blocks 89 are provided with a clamping groove 84, and the bayonet 86 is suitable for clamping into and withdrawing from the inside of the clamping groove 84. The two clamping blocks 89 are named as a clamping block 89 and b clamping block 89 respectively. The a clamping block 89 is horizontally installed at the end of the rotating body 83 axially opposite to the end cover 87, and the b clamping block 89 is horizontally installed on the radial outer side of the rotating body 83. Before the test, the latch pin 86 can be selected to be inserted into the a block 89 or the b block 89 according to the different test items of the fuze. The clamping states of the fuze are different in these two clamping states, and the initial clamping angles differ by 90 degrees, which can simulate different test items respectively.

[0024] like Figure 1 , Figure 3 , Figure 4As shown, when the second motor 13 rotates, the pull plate 14 is driven to rotate, and the pull rod 15 is pulled or pushed to move, and the pull rod 15 pushes or pulls the bayonet 86 to move. The setting of the spring 85 helps the pull rod 15 to push the bayonet 86 to move, and the elastic force of the spring 85 is used to cause the bayonet 86 to be stuck in the slot 84. The bayonet 86 is suitable for controlling the rotation body 83 to release the radial rotation lock. Specifically, when the bayonet 86 is inserted into the slot 84, the rotation body 83 and the second rotating shaft 82 are relatively stationary, and when the bayonet 86 is pulled out of the slot 84, the rotation body 83 is unlocked. The center of gravity of the rotation body 83 is not on the central axis of the second rotating shaft 82, so the eccentricity between the center of gravity of the rotation body 83 and the second rotating shaft 82 causes the rotation body 83 to rotate at the moment when the rotation body 83 is unlocked. Both the a block 89 and the b block 89 can be designed as one piece with the rotating body 4, but in the embodiment, the block b is separated and replaced with a material with a higher density. This is necessary for the rotating body 83 to obtain the required eccentricity for easy adjustment. The larger the eccentricity, the greater the rotational torque, angular acceleration and shorter rotation time of the rotating body 83 under the same angular displacement. On the contrary, when the eccentricity is reduced, the rotational torque obtained by the rotating body 83 is smaller, the angular acceleration becomes smaller, and the rotation time is longer under the same angular displacement. In this way, the rotation speed of the rotating body 83 and thus the overload loading time can be controlled.

[0025] Position verification sensors 812 are installed at both ends of the swivel arm 7 near the shell 81. A positioning pin is connected to the front end of the position verification sensor 812. The positioning pin corresponds to the horizontal position of the block 89 without a slot. The front end of the positioning pin is arc-shaped and embedded in the slide groove. The arc-shaped front end of the positioning pin protrudes outside the slide groove. When the rotating body 83 rotates and the block 89 moves to the positioning pin position, the front end of the positioning pin is pushed into the slide groove. At this time, the position verification sensor 812 senses it, and the overload information of the rotating body 83 when it rotates to this angle can be obtained through the signals of the position verification sensor 812 and the electrical connector 88.

[0026] When conducting a simulation test, the position of the rotating body 83 is adjusted by rotating so that the slot 84 and the bayonet 86 are directly opposite, and the bayonet 86 is clamped into the slot 84 by rotating the second motor 13. The fuse is loaded into the clamping cavity 810 and the end cover 87 is tightly closed, and the box cover 11 is closed. At this time, the first motor 2 is turned on, and the first motor 2 rotates through the first pulley 3, the second pulley 5 and the belt 4 to drive the first rotating shaft 6 to rotate. When the first rotating shaft 6 rotates, it drives the slewing arm 7 and the rotating modules at both ends to rotate together. When the speed of the slewing arm 7 reaches the preset value, the second motor 13 rotates and drives the pull plate 14 to rotate. At this time, the pull rod 15 pulls the bayonet 86 to pull the bayonet 86 out of the slot 84. The release of the rotating modules on both sides is completed at the same time. In addition, due to the structural symmetry of the rotating module, there will be no impact and vibration to the entire test device due to asynchronous release and inconsistent mass radius at both ends. At the moment when the latch 86 is pulled out, the rotating body 83 rotates under the torque. Because the centrifugal overload is large, the eccentricity of the rotating body 83 does not need to be too large, and the rotating module can also obtain a large torque and rotation acceleration. The rotation speed of the rotating body 83 increases rapidly from zero in a short time. The instantaneous loading and overload characteristics of the fuze are simulated, and the multi-directional loading characteristics of the fuze are simulated while the rotating body 83 rotates. The ballistic environment simulation test device can realize multi-directional loading after one clamping, and can simulate the instantaneous loading and overload characteristics of the fuze.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A ballistic environment simulation test device, characterized in that: The invention comprises a rotating module, a rotating arm (7) is installed on the top of the rotating module, the rotating module is suitable for driving the rotating arm (7) to rotate, a rotating module (8) is installed on both ends of the rotating arm (7), the rotating module (8) comprises a shell (81), a rotating body (83) is embedded in the shell (81), a second rotating shaft (82) is installed between the rotating body (83) and the shell (81), a bayonet guide hole is provided in the shell (81), a bayonet (86) is embedded in the bayonet guide hole, and a bayonet control module is installed in the middle of the rotating arm (7), the bayonet control module is suitable for controlling the bayonet (86) to move along the rotating body (83) The detent (86) is suitable for controlling the rotating body (83) to release the radial rotation lock, and the detent control module includes a second motor (13). A pull plate (14) is installed on the movable shaft of the second motor (13). Two pull rods (15) are hinged on the pull plate (14). The other end of the pull rod (15) is hinged to the detent (86). When the second motor (13) rotates, it is suitable for controlling the detent (86) to move forward and backward. An end cover (87) is provided at the end of the rotating body (83). A clamping cavity (810) is provided inside the rotating body (83), and the clamping cavity (810) is suitable for loading a fuse.

2. The ballistic environment simulation test device according to claim 1, characterized in that: A clamping block (89) is fixed on the rotating body (83), a clamping slot (84) is provided on the clamping block (89), and the clamping pin (86) is suitable for being clamped into and pulled out of the interior of the clamping slot (84).

3. The ballistic environment simulation test device according to claim 1, characterized in that: The rotating module comprises a first rotating shaft (6), the rotating arm (7) is mounted on the top of the first rotating shaft (6), and the first rotating shaft (6) is connected to a power output unit, wherein the power output unit is suitable for driving the first rotating shaft (6) to rotate.

4. The ballistic environment simulation test device according to claim 3, characterized in that: The power output unit comprises a first motor (2), a first pulley (3) is mounted on the output shaft end of the first motor (2), a second pulley (5) is embedded on the outside of the first rotating shaft (6), and a belt (4) is connected between the first pulley (3) and the second pulley (5).

5. The ballistic environment simulation test device according to claim 1, characterized in that: The shell (81) has a U-shaped structure.

6. The ballistic environment simulation test device according to claim 1, characterized in that: A spring (85) is embedded outside the bayonet (86), one end of the spring (85) abuts against the end of the bayonet guide hole, and the other end of the spring (85) is fixedly connected to the bayonet (86).

7. The ballistic environment simulation test device according to claim 1, characterized in that: The rotating body (83) is provided with an electrical connector (88), and the electrical connector (88) is suitable for recording and transmitting overload information.

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