Device for simulating launch and recovery of rocket

Abstract

The utility model provides a device for simulating launch and recovery of a rocket. The device comprises a launcher, a rocket body, a rocket support and a control system, wherein the rocket body is arranged on the launcher; the traction unit is used for pulling the rocket body to move up and down so as to simulate launching and recovery of the rocket; and the control unit is electrically connected with the traction unit and is used for controlling the traction unit to act. According to the device, through cooperation of the traction unit and the rocket body, vertical movement of the rocket body can be achieved, so that simulation of rocket launching and recovery is achieved, then actions of the traction unit are controlled through the control unit, complete control over the whole process of the rocket body is achieved, and the movement conditions in launching and recovery are automatically simulated; the device is simple in structure, small in size, low in cost and very suitable for teaching simulation of schools.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching equipment, in particular to a device for simulating rocket launching and recovery. Background Art

[0002] At present, fuel accounts for about 1% of the cost of a rocket, and rocket materials, main components, etc. account for 99% of the total value, which will be thrown away after one use. This has erected a high cost barrier for space exploration, and has had a great impact and obstacle on the advancement of space exploration. If rockets can be effectively recovered, then through the reuse of rockets, the cost of spacecraft launch can be greatly saved, the process of space exploration can be accelerated, and strong support can be provided for our understanding of the mysterious universe.

[0003] However, the application of rocket recovery technology requires a lot of experimental verification and theoretical calculations. It is not just a problem that can be solved by theoretical research or scientific knowledge in a single field. This process is a large project of multi-disciplinary, multi-space, multi-system cross-cutting and coordinated control. Obviously, it is impossible to verify all experimental processes one by one in actual launches. If so, the experimental process will incur extremely high costs.

[0004] In order to cultivate the interest of primary and secondary school students in rockets, schools often teach students some relevant knowledge. Since rocket launch and recovery involve high technology, high cost, and intensive scientific research personnel are difficult to participate in, most students learn about the relevant process through videos, but watching videos is far less likely to stimulate students' interest than real-life simulations. Through simulation devices, more interested people can participate and brainstorm. Utility Model Content

[0005] In view of the above defects of the prior art, the utility model provides a device for simulating rocket launch and recovery to solve the technical problem of being unable to provide a low-cost and easy-to-implement rocket launch and recovery process simulation.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a device for simulating rocket launching and recovery, including a launching frame and installed on the launching frame: a rocket body; a traction unit, the traction unit is used to pull the rocket body up and down to simulate the launching and recovery of the rocket; and a control unit, the control unit is electrically connected to the traction unit, and is used to control the action of the traction unit.

[0007] In one embodiment of the utility model, the device also includes a grasping unit, and the control unit is electrically connected to the grasping unit for controlling the grasping unit to grasp or release the rocket body.

[0008] In one embodiment of the utility model, the grasping unit includes a servo and a manipulator, and the manipulator is installed on the servo; the control unit is electrically connected to the servo and is used to control the movement of the servo to drive the manipulator to open or close.

[0009] In one embodiment of the utility model, the traction unit includes: a motor controller, electrically connected to the control unit; a motor, the motor controller is electrically connected to the motor to drive the motor forward or reverse; and a cable, one end of the cable is fixedly connected to the rotating shaft of the motor, and the other end of the cable is fixedly connected to the upper part of the rocket body.

[0010] In one embodiment of the utility model, a convex column is provided on the upper part of the launching frame, and a threading hole for the cable to pass through is provided on the convex column.

[0011] In one embodiment of the utility model, the launch frame includes a base plate, a column is provided on the base plate, the traction unit is provided on the top of the column, the rocket body is provided on the side of the column and moves along the length direction of the column under the action of the traction unit.

[0012] In an embodiment of the present invention, the launching frame further includes a supporting frame, and the supporting frame is fixedly connected to the bottom plate and the column to support the column.

[0013] In one embodiment of the utility model, the device also includes a sensor, and the sensor is arranged on the path of the up and down movement of the rocket body to obtain the position information of the rocket body and send the position information to the control unit.

[0014] In one embodiment of the present invention, the device further comprises a sound-emitting unit, and the control unit is electrically connected to the sound-emitting unit for controlling the sound-emitting unit to emit a voice prompt.

[0015] In one embodiment of the present invention, the control unit includes a single chip microcomputer of the STM32 series.

[0016] The beneficial effects of the utility model: the utility model proposes a device for simulating rocket launching and recovery, which can realize the up and down movement of the rocket body through the cooperation of the traction unit and the rocket body, thereby realizing the simulation of rocket launching and recovery, and then controlling the action of the traction unit through the control unit to realize complete control of the whole process of the rocket body, automatically simulating the movement conditions during launching and recovery, the device has a simple structure, small size and low cost, and is very suitable for teaching simulation in schools. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A structural schematic diagram provided for an embodiment of the utility model.

[0019] Explanation of the reference numerals: 100, rocket body; 200, launch pad; 201, base plate; 202, column; 203, support frame; 300, traction unit; 301, motor controller; 302, motor; 303, cable; 400, grabbing unit; 401, servo; 402, manipulator; 500, control unit; 600, sensor; 700, sound unit. DETAILED DESCRIPTION

[0020] The following is an explanation of the implementation of the present invention through specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. In addition to the specific methods, equipment, and materials used in the embodiments, according to the technical personnel in this technical field's grasp of the prior art and the records of the present invention, any methods, equipment, and materials of the prior art that are similar or equivalent to the methods, equipment, and materials described in the embodiments of the present invention can also be used to implement the present invention.

[0021] It should be understood that the terms used in the embodiments of the present invention are to describe specific embodiments rather than to limit the scope of protection of the present invention. Unless otherwise defined, all technical and scientific terms used in the present invention have the same meaning as those commonly understood by those skilled in the art.

[0022] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of the utility model, so they have no substantive technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. In addition, the drawings only show the components related to the utility model rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed arbitrarily, and the component layout type may also be more complicated.

[0023] See also Figure 1 , Figure 1 A device for simulating rocket launch and recovery provided in an embodiment of the utility model comprises a launch stand 200 and a rocket body 100 installed on the launch stand 200. The rocket body 100 needs to have a certain dead weight, and can be a model processed after imitating a real rocket, or an object simulating the shape of a rocket, and can even use a mineral water bottle filled with water as the rocket body 100; a traction unit 300, which is used to traction the rocket body 100 to move up and down to simulate the launch and recovery of the rocket. The traction unit 300 tractions the rocket body 100 to move upward to simulate the launch of the rocket, and the traction unit 300 tractions the rocket body 100 to move downward to simulate the recovery of the rocket; and a control unit 500, which is electrically connected to the traction unit 300 and is used to control the action of the traction unit 300. The control unit 500 controls the action of the traction unit 300, which can be triggered by the user through a key, or can be controlled by the control unit 500 itself according to a certain timing. It can be understood that the control unit 500 of the traction unit 300 may, for example, include control of the complete process of rocket launch and recovery, or may include multiple sub-step controls. The user can use different buttons to start the simulation device to simulate different processes, such as the launch process, the recovery process, etc.

[0024] The utility model proposes a device for simulating rocket launch and recovery. The device can realize the up and down movement of the rocket body 100 through the cooperation of the traction unit 300 and the rocket body 100, thereby realizing the simulation of rocket launch and recovery. The control unit 500 controls the action of the traction unit 300 to realize complete control of the entire process of the rocket body 100, and automatically simulates the movement during launch and recovery. The device has a simple structure, a small size, and a low cost, and is very suitable for teaching simulation in schools.

[0025] In a specific embodiment of the utility model, the device further includes a grabbing unit 400, and a control unit 500 is electrically connected to the grabbing unit 400, and is used to control the grabbing unit 400 to grab or release the rocket body 100. It can be understood that before the rocket is launched and after it is recovered, the position of the rocket generally needs to be fixed. In this embodiment, through the cooperation of the grabbing unit 400 and the traction unit 300, a more realistic simulation of the rocket launch and recovery process can be achieved.

[0026] In a specific embodiment of the utility model, the grabbing unit 400 includes a servo 401 and a manipulator 402, and the manipulator 402 is installed on the servo 401; the servo 401 control unit 500 control unit 500 is electrically connected to the servo 401, and is used to control the action of the servo 401 to drive the manipulator 402 to open or close. The solution of the servo 401 plus the manipulator 402 can well realize the grabbing and releasing of the rocket body 100, for example, the MG996R servo 401 can be used. And when installing the grabbing unit 400, multiple grabbing units 400 can be installed according to the height of the rocket body 100, for example, one up and one down, so that it is more stable and reliable when grabbing the rocket.

[0027] In a specific embodiment of the utility model, the traction unit 300 includes: a motor controller 301, which is electrically connected to the control unit 500; a motor 302, the motor controller 301 is electrically connected to the motor 302 to drive the motor 302 to rotate forward or reverse; and a cable 303, one end of the cable 303 is fixedly connected to the rotating shaft of the motor 302, and the other end is fixedly connected to the upper part of the rocket body 100. The cable 303 is retracted and released by the forward or reverse rotation of the motor 302. When the cable 303 is retracted, the rocket body 100 is pulled upward by the cable 303, and when the cable 303 is released, the rocket body 100 moves downward under its own gravity. It can be understood that in order to prevent the cable 303 from falling off the rotating shaft of the motor 302, a winding wheel can be set on the rotating shaft of the motor 302, so that the cable 303 is wound therein.

[0028] The motor 302 may be a stepper motor. The stepper motor is a motor 302 that converts an electrical pulse signal into an angular displacement or a linear displacement. Its working principle is to convert electrical energy into mechanical energy using the electromagnetic principle. Each time an electrical pulse signal is input, the rotor of the stepper motor rotates a fixed angle, which is called the step angle. Therefore, the stepper motor can accurately control the angle of rotation by controlling the number of pulses, and its speed is proportional to the frequency of the pulses. Due to this characteristic, the stepper motor can achieve precise position control without the need for a feedback system.

[0029] In a specific embodiment of the utility model, a boss (not shown) is provided on the upper part of the launcher 200, and a threading hole is provided on the boss for the cable 303 to pass through. The winding shaft of the motor 302 has a certain size, and the rocket body 100 naturally sags under its own gravity. Since the position of the cable 303 on the winding shaft of the motor 302 will change, the rocket body 100 will shake, which will increase the difficulty of the grabbing unit 400 to grab the rocket body 100. Therefore, in this embodiment, a boss is provided on the upper part of the launcher 200, and a threading hole is provided on the boss. The cable 303 between the winding shaft of the motor 302 and the rocket body 100 passes through the threading hole. Since the position of the threading hole is fixed, the shaking of the rocket body 100 can be avoided. At the same time, the boss can also constitute a limit when the rocket body 100 moves upward.

[0030] In a specific embodiment of the utility model, the launcher 200 includes a bottom plate 201, which can be a flat plate, so that the device can be placed in other places. A column 202 is provided on the bottom plate 201, and the column 202 can be arranged perpendicular to the plate surface of the bottom plate 201. The traction unit 300 is arranged on the top of the column 202, and the rocket body 100 is arranged beside the column 202 and moves along the length direction of the column 202 under the force of the traction unit 300. The length direction of the column 202 is the vertical direction. After the column 202 is arranged, the traction unit 300 can be easily installed.

[0031] In a specific embodiment of the present invention, in order to ensure the stability of the column 202, the launcher 200 further includes a support frame 203, which is fixed to the bottom plate 201 and the column 202 to support the column 202. The support frame 203 is mainly used to support and fix the column 202, for example Figure 1 In the figure, the support frame 203 is composed of two vertical rods and a cross rod, the two vertical rods are respectively arranged on both sides of the column 202, and a cross rod connects the two vertical rods and the column 202 together. It can be understood that the launcher 200 can also be in other shapes, for example, it can be two support rods arranged obliquely.

[0032] In a specific embodiment of the utility model, the device also includes a sensor 600, which is arranged on the path of the rocket body 100 moving up and down to obtain the position information of the rocket body 100 and send the position information to the control unit 500. In the simulation process of the launch and recovery of the rocket, it is necessary to accelerate the rocket at the right time, and it is hoped that the grabbing unit 400 will release or grab the rocket body 100 at the right time. Therefore, the sensor 600 is set to monitor the position information of the rocket body 100, and the entire simulation process can be controlled more accurately based on this position information to reduce human intervention. There are many kinds of sensors 600 for monitoring the position, for example, ultrasonic sensors can be used.

[0033] In a specific embodiment of the utility model, the device further includes a sound unit 700, and the control unit 500 is electrically connected to the sound unit 700, and is used to control the sound unit 700 to issue a voice prompt. The sound unit 700 can be a speaker, and during the entire simulation process, voice prompts can be issued to enhance the sense of presence, for example, voice prompts such as "3, 2, 1, launch", "launch successful", "prepare to accelerate", "prepare to recover", "recovery successful", etc. can be played at appropriate times.

[0034] In a specific embodiment of the present invention, the control unit 500 includes a single-chip microcomputer of the STM32 series. STM32 is a series of high-performance microcontrollers based on the Arm Cortex-M processor, which are suitable for a wide range of embedded applications. The STM32 series microcontrollers are favored by developers for their high performance, real-time functions, digital signal processing capabilities, low power consumption and low voltage operation. These microcontrollers are highly integrated and easy to develop, and are particularly suitable for the design of the control unit 500 in the present invention.

[0035] In a specific embodiment of the utility model, two STM32 development boards can be used to work together to control the entire simulation process, wherein one STM32 development board controls the actions of two servos 401 to achieve the coordinated opening and closing of the manipulator 402 (i.e., ground control in the actual scenario), and the other STM32 development board controls the acceleration, deceleration, and forward and reverse rotation of the stepper motor (i.e., the control of the rocket itself in the actual scenario).

[0036] The following describes the process of simulating rocket launch and recovery for the above device.

[0037] Before simulating the rocket launch process, ensure that the rocket body 100 is grabbed by the manipulator 402 at the bottom of the launch pad 200. When the relevant function button is pressed, the simulation of the process is started. First, play the rocket launch voice prompt. Secondly, turn on the manipulator 402, and start the stepper motor at the same time (or with a slight delay) to pull the rocket body 100 upward; then during the movement, it can be accelerated according to the signal sent back by the sensor 600 or after a certain delay, and the voice prompt can be broadcast during acceleration; finally, determine whether the rocket position has reached the top through the number of pulses, or the signal sent back by the sensor 600, or the start time of the motor 302. When the rocket body 100 runs to the top, stop the stepper motor, play the voice prompt of successful launch, and complete the rocket launch simulation.

[0038] The simulation of the rocket recovery process can only be carried out after the rocket is launched, that is, it is necessary to ensure that the rocket body 100 reaches the top of the launch pad 200. First, play the voice prompt of rocket recovery; second, start the stepper motor to reverse, and check and open the manipulator 402 at the same time; then during the rocket descent, deceleration can be implemented according to the signal sent back by the sensor 600 or after a certain delay. During deceleration, a voice prompt can be broadcast, and the closing program of the manipulator 402 can also be started according to the signal sent back by the sensor 600; finally, determine whether the rocket position has reached the bottom through the number of pulses, or the signal sent back by the sensor 600, or the start time of the motor 302. When the rocket body 100 runs to the bottom, stop the stepper motor, play the voice prompt of successful recovery, and complete the rocket recovery simulation.

[0039] It can be understood that the device also includes multiple buttons that can start different processes respectively. For example, an installation button can be set. Clicking this button can control the switching of the open and closed states of the manipulator 402 to facilitate placing the rocket body 100 into the clamping range of the manipulator 402 to simulate the installation of the rocket; a launch button can also be set, and the simulation of the rocket launch process can be realized after the button is pressed; a recovery button can also be set, and the simulation of the rocket recovery process can be realized after the button is pressed; a one-key simulation button can also be set, and the simulation of the entire process of rocket launch and recovery can be realized after the button is pressed. Of course, other buttons can also be set as needed.

[0040] It can be understood that in a specific embodiment of the present invention, a flame simulation mechanism can also be provided below the rocket body 100 to make the simulation process more realistic.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A device for simulating rocket launch and recovery, characterized in that: It includes a launching frame and the following items installed on the launching frame: Rocket body; A traction unit, the traction unit is used to pull the rocket body up and down to simulate the launch and recovery of the rocket; and A control unit is electrically connected to the traction unit and is used to control the action of the traction unit.

2. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The device also includes a grasping unit, and the control unit is electrically connected to the grasping unit and is used to control the grasping unit to grasp or release the rocket body.

3. The device for simulating rocket launch and recovery according to claim 2, characterized in that: The grabbing unit comprises a steering gear and a manipulator, wherein the manipulator is mounted on the steering gear; the control unit is electrically connected to the steering gear and is used to control the movement of the steering gear to drive the manipulator to open or close.

4. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The traction unit comprises: A motor controller, electrically connected to the control unit; A motor, wherein the motor controller is electrically connected to the motor to drive the motor to rotate forward or reverse; and A cable, one end of which is fixedly connected to the rotating shaft of the motor, and the other end of which is fixedly connected to the upper part of the rocket body.

5. The device for simulating rocket launch and recovery according to claim 4, characterized in that: A convex column is arranged on the upper part of the launching frame, and a threading hole for the cable to pass through is arranged on the convex column.

6. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The launcher includes a base plate, a column is arranged on the base plate, the traction unit is arranged on the top of the column, the rocket body is arranged on the side of the column and moves along the length direction of the column under the action of the traction unit.

7. The device for simulating rocket launch and recovery according to claim 6, characterized in that: The launching frame also includes a supporting frame, which is fixedly connected to the base plate and the column to support the column.

8. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The device also includes a sensor, which is arranged on the path of the rocket body moving up and down to obtain the position information of the rocket body and send the position information to the control unit.

9. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The device also includes a sound-generating unit, and the control unit is electrically connected to the sound-generating unit and is used to control the sound-generating unit to emit a voice prompt.

10. The device for simulating rocket launch and recovery according to claim 1, characterized in that: The control unit includes a single chip microcomputer of the STM32 series.

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