A projectile frequency simulator and simulation method thereof

Abstract

The invention discloses a projectile frequency simulator, comprising a workbench, a simulation part of circular rotation and linear motion installed on the top surface of the workbench, and a servo drive motor for driving the simulation part to move; and a frequency converter electrically connected to the servo drive motor; the control panel of the frequency converter is installed on the front of the workbench; the frequency converter is electrically connected to a power supply interface; the simulation method of the simulator is as follows: firstly, an AC voltage of 220±10%V is externally connected to the power supply interface, the required frequency of repeated motion is set through an external control panel, the servo drive motor outputs a corresponding speed to drive a turntable on the workbench to rotate, and during the rotation of the turntable, a horizontal axis is driven to make a reciprocating motion back and forth through a swing axis that can rotate 180 degrees, thereby completing the projectile frequency simulation; the projectile frequency simulator and the simulation method of the invention can simulate the function of the motion law of a cannon floating machine, and can realize frequency simulation control at the same time.

Description

Technical Field

[0001] The invention relates to a projectile simulator, in particular to a projectile frequency simulator, and belongs to the technical field of projectile simulators. Background Art

[0002] When the artillery is firing, the movement of the floating machine follows a variable frequency reciprocating motion (10 to 20 cycles per second), which requires a large driving force. When inspecting and accepting the floating machine related test instruments, it is necessary to power on the artillery without projectiles or use live ammunition shooting. The disadvantages of existing frequency reciprocating motor simulators are that the frequency is less than 10 times per second and the driving force is insufficient. Therefore, under the premise of no artillery assembly, due to limited conditions, it is impossible to test the quality of the floating machine related test instruments by simulating the movement of the floating machine. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes a projectile frequency simulator and a simulation method thereof, which adopts a circular to linear mechanism and controls the circular rotation speed to achieve the purpose of linear motion frequency control. It can realize the testing of floating machine related test instruments without artillery assembly.

[0004] The projectile frequency simulator of the present invention comprises a workbench. Since the vibration amplitude of the motor will be relatively large when a relatively large frequency is set, the frequency may be inaccurate after the circular motion is converted into the reciprocating linear motion. Therefore, the weight of the workbench is set to be not less than 30KG, which can prevent relatively large vibration and facilitate the installation of the simulation part; and a simulation part of the circular to linear motion installed on the top surface of the workbench. Through the simulation part, the function of the turntable rotating one circle and the horizontal device performing a reciprocating motion can be realized; the horizontal displacement of the reciprocating motion is adjustable, the maximum being the diameter of the turntable circle; the frequency is adjustable, the maximum being up to 20 times per second, and a servo drive motor for driving the simulation part to move. Since the radio frequency of a small-caliber artillery is relatively fast, generally 550r / min, so the floating machine requires a frequency of 10Hz. Taking into account the functional expansion, the drive device must achieve a reciprocating motion speed of up to 20Hz; for ease of use, the frequency integer is adjustable; a servo motor plus inverter mode is adopted; and an inverter electrically connected to the servo drive motor; the inverter's control panel is installed on the front of the workbench; the inverter is electrically connected to the power supply interface; the control panel is the inverter's own panel: mainly composed of a display area, a programming / confirmation key, a run / shift key, a stop / reset key, a numerical shift key / reverse run key, a plus / minus key, etc.; it is used to set the required motion frequency; it is a prior art, and its specific structure and adjustment process are not described in detail here.

[0005] Preferably, the simulation component includes a turntable movably mounted on the top surface of the workbench; a plurality of bolt columns are arranged on the turntable; the bolt columns are not on the same diameter; the distances between each bolt column and the center axis of the turntable are different; by selecting different positions of the installed bolt columns, the horizontal displacement of the reciprocating motion can be adjusted, and the maximum is the diameter of the circumference of the turntable; a main shaft is fixed on the center axis of the turntable; the main shaft is installed with a servo drive motor through a coupling; a swing shaft that can rotate 180° is pressed on one of the bolt columns by a nut; hole seats are arranged at both ends of the swing shaft; the other hole seat of the swing shaft is hinged to the horizontal shaft; the horizontal shaft passes through a guide cylinder; the servo drive motor rotates, and drives the main shaft to rotate through the coupling, thereby driving the turntable to rotate, and the rotation of the turntable drives the swing shaft to swing, and the swing shaft drives the horizontal shaft to perform horizontal telescopic movement.

[0006] Preferably, a fixing block for fixing the displacement sensor is fixed in the middle of the horizontal axis.

[0007] Preferably, the frequency converter is also electrically connected to an external control panel; since the servo drive motor selected by the simulator is relatively large, there is a certain risk when setting a higher frequency, so an external control panel with the same function is introduced on the basis of the original control panel of the frequency converter, and these two panels can control the frequency converter separately without interfering with each other; the external control panel limits the maximum frequency.

[0008] The simulation method of the above-mentioned projectile frequency simulator is as follows: first, an AC 220±10%V voltage is connected to the power supply interface, and the required frequency of repetitive motion is set through an external control panel. The servo drive motor outputs a corresponding speed to drive the turntable on the workbench to rotate. During the rotation of the turntable, a swing shaft that can rotate 180 degrees drives a horizontal axis to reciprocate back and forth, thereby completing the projectile frequency simulation.

[0009] Compared with the prior art, the projectile frequency simulator of the present invention has the following advantages: it converts the circular motion of the servo drive motor into reciprocating motion in the horizontal direction, thereby realizing the function of simulating the motion law of the artillery floating machine without the restriction of artillery equipment, and at the same time can realize frequency simulation control. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0011] Figure 2 It is a schematic diagram of the fixing block installation structure of the present invention.

[0012] Figure 3 It is a schematic diagram of the connection structure of the external control panel of the present invention. DETAILED DESCRIPTION

[0013] Embodiment 1:

[0014] like Figure 1 As shown, the projectile frequency simulator of the present invention includes a workbench 1. Since the vibration amplitude of the motor will be relatively large when a larger frequency is set, the frequency may be inaccurate after the circular motion is converted into reciprocating linear motion, so the weight of the workbench is set to be not less than 30KG, which can prevent large vibrations and facilitate the installation of simulation parts; and a simulation part of circular to linear motion installed on the top surface of the workbench 1, through which the turntable can rotate one circle and the horizontal device can make a reciprocating motion; the horizontal displacement of the reciprocating motion is adjustable, the maximum being the diameter of the turntable circle; the frequency is adjustable, the maximum can reach 20 times per second, and a servo drive motor 2 that drives the simulation part to move, because the radio frequency of small-caliber artillery is relatively fast, generally 550r / m in, so the floating machine requires a frequency of 10Hz. Taking into account the functional expansion, the drive device must achieve a reciprocating motion speed of up to 20Hz; for ease of use, the frequency integer is adjustable; a servo motor plus inverter mode is adopted; and an inverter 3 electrically connected to the servo drive motor 2; the inverter 3 and its control panel 4 are installed on the front of the workbench 1; the inverter 3 is electrically connected to the power supply interface 5; the control panel 4 is the inverter's own panel: mainly composed of a display area, a programming / confirmation key, a run / shift key, a stop / reset key, a numerical shift key / reverse run key, a plus / minus key, etc.; used to set the required motion frequency; it is a prior art, and its specific structure and adjustment process are not described in detail here.

[0015] Among them, the simulation part includes a turntable 6 movably installed on the top surface of the workbench; a plurality of bolt columns 7 are arranged on the turntable 6; the bolt columns 7 are not on the same diameter; the distances between each bolt column 7 and the central axis of the turntable 6 are different; by selecting different positions of the installed bolt columns, the horizontal displacement of the reciprocating motion can be adjusted, and the maximum is the diameter of the circumference of the turntable; a main shaft 8 is fixed on the central axis of the turntable 6; the main shaft 8 is installed with the servo drive motor 2 through a coupling 9; a swing shaft 10 that can rotate 180° is pressed by a nut on one of the bolt columns 7; hole seats 11 are arranged at both ends of the swing shaft 10; the other hole seat of the swing shaft 10 is hinged with the horizontal shaft 12; the horizontal shaft 12 passes through a guide cylinder 13; the servo drive motor rotates, and drives the main shaft to rotate through the coupling, thereby driving the turntable to rotate, the rotation of the turntable drives the swing shaft to swing, and the swing shaft drives the horizontal shaft to perform horizontal telescopic movement.

[0016] like Figure 2 As shown, a fixing block 14 for fixing a displacement sensor is fixed in the middle of the horizontal shaft 12 .

[0017] like Figure 3As shown, the frequency converter 3 is also electrically connected to an external control panel 15; since the servo drive motor selected by the simulator is relatively large, there is a certain risk when setting a higher frequency, so an external control panel with the same function is introduced on the basis of the original control panel of the frequency converter, and these two panels can control the frequency converter separately without interfering with each other; the external control panel limits the maximum frequency.

[0018] The simulation method of the above-mentioned projectile frequency simulator is as follows: first, an AC 220±10%V voltage is connected to the power supply interface, and the required frequency of repetitive motion is set through an external control panel. The servo drive motor outputs a corresponding speed to drive the turntable on the workbench to rotate. During the rotation of the turntable, a swing shaft that can rotate 180 degrees drives a horizontal axis to reciprocate back and forth, thereby completing the projectile frequency simulation.

[0019] The above embodiments are only preferred implementations of the present invention, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A projectile frequency simulator, characterized in that: It includes a workbench, a circular and linear motion simulation component installed on the top surface of the workbench, and a servo drive motor for driving the simulation component; and a frequency converter electrically connected to the servo drive motor; the control panel of the frequency converter is installed on the front of the workbench; the frequency converter is electrically connected to the power supply interface; The simulation part includes a turntable movably mounted on the top surface of the workbench; a plurality of bolt columns are arranged on the turntable; the bolt columns are not on the same diameter; the distances between the bolt columns and the center axis of the turntable are different; a main shaft is fixed on the center axis of the turntable; the main shaft is installed with a servo drive motor through a coupling; a swing shaft that can rotate 180° is pressed on one of the bolt columns through a nut; hole seats are arranged at both ends of the swing shaft; the other hole seat of the swing shaft is hinged with a horizontal shaft; the horizontal shaft passes through a guide cylinder; The frequency converter is also electrically connected to an external control panel.

2. The projectile frequency simulator according to claim 1, characterized in that: A fixing block for fixing the displacement sensor is fixed in the middle of the horizontal axis.

3. The simulation method of the projectile frequency simulator according to claim 1, characterized in that: The method comprises the following steps: firstly, an AC voltage of 220±10%V is connected to the power supply interface, the required frequency of repetitive motion is set through an external control panel, and the servo drive motor outputs a corresponding speed to drive the turntable on the workbench to rotate. During the rotation of the turntable, a swing shaft that can rotate 180 degrees drives a horizontal axis to make reciprocating motion back and forth, thereby completing the projectile frequency simulation.

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