A ground opening hatch test device for controllable spin-stabilized munitions

Abstract

The utility model belongs to ammunition test technical field provides a kind of ground hatch opening test device suitable for controllable rotary throwing ammunition, including transmission system and power control system;The transmission system includes coaxially arranged electric slip ring (1), belt pulley (2), right bearing (4), electric slip ring seat (5), transmission shaft (6), left bearing (7), bearing base (8) and three-jaw chuck body (10).The utility model's technical scheme adopts modularization design, can realize stepless speed regulation to different platform ammunition in wide rotation speed domain, and the dynamic hatch opening test of each type rocket projectile, grenade and other ammunition of rotary hatch opening projectile ammunition of different diameter, different shape, different rotating speed can be matched quickly.

Description

Technical Field

[0001] This utility model belongs to the field of ammunition testing technology, specifically relating to a ground-based hatch-opening test device suitable for controlled rotating and dispersing ammunition. Background Technology

[0002] Spinning-out munitions eject submunitions from the parent munition via an open-chamber ejection method. Under the action of centrifugal force, the submunitions unfold in a fan shape to inflict area damage on the target. The kill density of the submunitions is an important indicator of the kill effect of this type of munition. Current research on spinning-out munitions mainly focuses on numerical simulations, and most experimental data comes from fixed-chamber open-chamber tests, which have certain limitations due to the loading of dynamic rotational conditions.

[0003] Current ground-based launch pod-opening tests fix the mother missile to a test platform, allowing verification of the pod-opening effect only through static launch tests with the mother missile fixed. This approach cannot simulate the dynamic pod-opening process of a rotating projectile, nor can it verify the dispersion characteristics of the submunitions after pod opening. Furthermore, full-projectile dynamic flight pod-opening tests are costly, time-consuming, and have low safety, hindering the development of novel rotating pod-opening munitions. Therefore, it is necessary to develop a ground-based pod-opening test platform suitable for rotating pod-opening munitions to obtain information on the dispersion of submunitions after pod opening, thus resolving existing problems in the development process. This will facilitate the forward design of new munitions, shorten the development cycle, and improve development efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The technical problem to be solved by this utility model is: to develop a ground-based test platform for rotating and opening munitions to obtain the dispersion of submunitions after opening the munitions.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a ground-based hatch-opening test device for controllable rotating munitions, including a transmission system and a power control system;

[0008] The transmission system includes an electrical slip ring 1, a pulley 2, a right bearing 4, an electrical slip ring seat 5, a transmission shaft 6, a left bearing 7, a bearing base 8, and a three-jaw chuck body 10, all arranged coaxially.

[0009] The electrical slip ring 1 is fixedly connected to the electrical slip ring seat 5 by screws. The electrical slip ring seat 5 is connected to the left end of the drive shaft 6 by screws. The pulley 2 is fixedly connected to the drive shaft 6. The left bearing 7 and the right bearing 4 are fixed in the bearing base 8 by a pair of left bearing retainers 3 and right bearing retainers 9, respectively. The drive shaft 6 is supported in the inner rings of the left bearing 7 and the right bearing 4. The three-jaw chuck body 10 is fixedly connected to the right end of the drive shaft 6. The three-jaw chuck body 10 cooperates with the jaws 11.

[0010] The power control system includes a high-speed motor 12 and a speed controller 13. The speed controller 13 is used to control the speed of the high-speed motor 12. The output shaft of the high-speed motor 12 drives the pulley 2 via a belt to drive the transmission shaft 6, the electrical slip ring seat 5, the electrical slip ring 1, the three-jaw chuck body 10, the chuck jaws 11, and the test target to rotate synchronously.

[0011] Furthermore, the drive shaft 6 and the three-jaw chuck body 10 are provided with axial through holes at their centers.

[0012] Furthermore, the chuck 11 is used to hold the test projectile. The ignition wire of the ignition opening mechanism is connected to the inner ring terminal of the electrical slip ring 1 through the central hole of the transmission system. The remote control firing device is then connected to the outer ring terminal of the electrical slip ring 1. After the high-speed motor is started, the high-speed motor 12 is controlled by the speed controller 13 to achieve stepless speed change. The test projectile is driven by the transmission system to rotate at high speed at the designed speed, so as to achieve the ground opening test conditions for controllable rotation and scattering of ammunition.

[0013] Furthermore, the speed controller has motor overload protection and speed over-range alarm functions.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. High-reliability electrical slip rings are used to achieve stable power and signal transmission during rotation. Synchronous rotation solves the problem of wire entanglement during rotation, ensuring the normal operation of the ignition device inside the projectile.

[0017] 2. Machining and fitting dimensions of the drive shaft, bearing housing, etc. In this utility model, the machining and fitting dimensions are precisely controlled to ensure the coaxiality of the overall drive chain, effectively reduce the vibration and noise of the test device during rotation, and improve its safety performance.

[0018] 3. By utilizing the motor overload protection and speed over-range alarm functions of the speed controller, the controller can monitor the operating status in real time and immediately stop the machine in case of any abnormality, ensuring the safety of test personnel and equipment.

[0019] 4. The modular design enables stepless speed adjustment of ammunition on different platforms over a wide rotational speed range. It can quickly match dynamic opening tests of various types of rockets, grenades and other ammunition with different diameters, shapes and rotational speeds of rotating breech-launching submunitions. Attached Figure Description

[0020] Figure 1 This is a simplified structural diagram of the ground-based open-chamber test device of this utility model;

[0021] Figure 2 This is a simplified diagram of the transmission system structure.

[0022] Figure 3 This is a three-dimensional isometric drawing of the transmission system. Detailed Implementation

[0023] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] like Figure 1 As shown, the ground-based open-chamber test device in this embodiment mainly consists of a transmission system and a power control system.

[0025] like Figure 2 As shown, in the transmission system, the electrical slip ring (1) adopts a precious metal contact structure, with a rated speed ≥8000r / min and a contact resistance ≤0.01Ω. The electrical slip ring (1) is fixedly connected to the electrical slip ring seat (5) by an inner ring screw. The electrical slip ring seat (5) is connected to the transmission shaft (6) by three screws. The pulley (2) is fixed to the transmission shaft (6) by a pin. The left bearing (7) and the right bearing (4) are fixed to the bearing base (8) by a pair of left bearing retainers (3) and right bearing retainers (9), respectively. The transmission shaft (6) is fitted with the left bearing (7) and the right bearing (4) by an interference fit, and they are installed in pairs with a preload applied. The three-jaw chuck body (10) is fixedly connected to the transmission shaft (6) by three screws. The three-jaw chuck body (10) and the jaws (11) achieve a self-centering and fixing function through structural cooperation. The electrical slip ring (1), pulley (2), right bearing (4), electrical slip ring seat (5), drive shaft (6), left bearing (7), bearing base (8) and three-jaw chuck body (10) are coaxially mounted.

[0026] like Figure 1 As shown, in the power control system, the high-speed motor (12) is connected to the pulley (2) via a belt, and the speed controller (13) is used to control the speed of the high-speed motor (12). The high-speed motor (12) drives the pulley (2) via the belt to drive the transmission shaft (6), the electrical slip ring seat (5), the electrical slip ring (1), the three-jaw chuck body (10), the jaws (11), and the test target to rotate synchronously. The speed of the high-speed motor (12) is controlled by the speed controller (13).

[0027] The three-jaw chuck body (10) holds the test projectile through the jaws (11). The ignition wire of the ignition opening mechanism is connected to the inner ring terminal of the electrical slip ring (1) through the central hole of the transmission system. The remote control firing device is then connected to the outer ring terminal of the electrical slip ring (1). After starting the motor, the high-speed motor (12) is controlled by the speed controller (13) to achieve stepless speed change. The test projectile is driven by the transmission system to rotate at high speed according to the design speed, so as to achieve the ground opening test conditions for controllable rotation and scattering of ammunition.

[0028] The advantages of this embodiment are that the device has a compact structure, and its practical new power and control system, precision bearings, electrical slip rings, and other components are readily available as finished products that can be selected and procured according to design requirements, resulting in good economy and versatility. The processing, selection, and assembly of key components have been optimized. The high-precision control and drive system simulates the opening dynamics of the projectile in a rotating state. The modular design allows for rapid matching with dynamic opening test research of various types of rockets, grenades, and other munitions, showing good application prospects in actual product development.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A ground-based hatch-opening test device suitable for controlled rotating munitions dispersal, characterized in that, Including the transmission system and the power control system; The transmission system includes an electrical slip ring (1), a pulley (2), a right bearing (4), an electrical slip ring seat (5), a transmission shaft (6), a left bearing (7), a bearing base (8), and a three-jaw chuck body (10) arranged coaxially. The electrical slip ring (1) is fixedly connected to the electrical slip ring seat (5) by screws. The electrical slip ring seat (5) is connected to the left end of the drive shaft (6) by screws. The pulley (2) is fixedly connected to the drive shaft (6). The left bearing (7) and the right bearing (4) are fixed in the bearing base (8) by a pair of left bearing retainers (3) and right bearing retainers (9), respectively. The drive shaft (6) is supported in the inner rings of the left bearing (7) and the right bearing (4). The three-jaw chuck body (10) is fixedly connected to the right end of the drive shaft (6). The three-jaw chuck body (10) cooperates with the jaws (11). The power control system includes a high-speed motor (12) and a speed controller (13); the speed controller (13) is used to control the speed of the high-speed motor (12), and the output shaft of the high-speed motor (12) drives the pulley (2) to drive the transmission shaft (6), the electrical slip ring seat (5), the electrical slip ring (1), the three-jaw chuck body (10), the chuck jaws (11) and the test target to rotate synchronously.

2. The ground-based hatch-opening test device for controllable rotating and dispersing munitions as described in claim 1, characterized in that, The drive shaft (6) and the three-jaw chuck body (10) are provided with axial through holes at their centers.

3. The ground-based hatch-opening test device for controllable rotating and dispersing munitions as described in claim 2, characterized in that, The claw (11) is used to hold the test projectile. The ignition wire of the ignition opening mechanism is connected to the inner ring terminal of the electrical slip ring (1) through the central hole of the transmission system. The remote control firing device is then connected to the outer ring terminal of the electrical slip ring (1). After starting the high-speed motor, the high-speed motor (12) is controlled by the speed controller (13) to achieve stepless speed change. The test projectile is driven by the transmission system to rotate at high speed according to the design speed, so as to achieve the ground opening test conditions for controllable rotation and scattering of ammunition.

4. The ground-based hatch-opening test device for controllable rotating and dispersing munitions as described in claim 1, characterized in that, The speed controller has motor overload protection and speed over-range alarm functions.

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