Launching device capable of quantitatively controlling translation speed and rotation speed and working method thereof

Abstract

The invention discloses a launching device capable of quantitatively controlling translation and rotation speeds and a working method of the launching device. The launching device comprises a translation driving system, a rotation driving system and a clamping mechanism. Wherein the translation driving system is used for driving the flying piece to translate; the rotation driving system is used for driving the flying piece to rotate; the clamping mechanism is used for clamping the flying part and releasing the flying part in time after the flying part reaches the preset initial translation speed and the rotation angular speed, and launching of the flying part is achieved. According to the launching device, the translation speed of the flying piece is independently controlled through the translation driving system, and the rotation angular speed of the flying piece is independently controlled through the rotation driving system, so that the two speeds can be independently quantified and do not influence each other. And moreover, the flying part is clamped by the clamping part, and the shape of the flying part does not need to be limited through a driving mode of driving the flying part to rotate by the motor, so that the flying part has higher universality. The invention relates to the technical field of aerodynamic tests.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerodynamic test, in particular to a launching device capable of quantitatively controlling translational and rotational speeds and a working method thereof. BACKGROUND

[0002] In physics teaching and research experiments, the relationship between the motion trajectory of a rotating flying body and its initial motion parameters often needs to be studied. The initial motion parameters include but are not limited to translational speed, rotational angular speed and launch angle, etc. In research experiments, single variable control is generally required, thus requiring quantitative control of each initial motion parameter.

[0003] Existing launching devices mostly rely on manual operation, which makes it difficult to achieve quantitative control of parameters and repeated launching, affecting the accuracy and comparability of experimental data. In this regard, some researchers have proposed using flying disc launchers and other existing flying body launching devices in the market, which can quantitatively control the launch speed and launch angle, thus meeting the needs of some experimental scenarios.

[0004] However, such flying disc launchers also have limitations. Since they generally use a rotating wheel to drive, when the outer edge of the flying disc contacts the high-speed rotating wheel, the flying disc obtains a certain translational speed and rotational angular speed through friction, so that the flying disc is launched from the flying disc launcher in rotation. First of all, this driving method makes the translational speed and the rotational angular speed of the flying body related to each other, making it difficult to quantitatively control one of the parameters alone, which is not conducive to detailed research experiments. Secondly, this driving method requires the flying body to be disc-shaped, and cannot be used when the flying body is of other shapes (e.g., a boomerang), which limits the use scenarios of such flying body launching devices. SUMMARY

[0005] The present application aims to at least solve one of the above technical problems in the prior art. To this end, the present application proposes a launching device capable of quantitatively controlling translational and rotational speeds, which can quantitatively control the translational speed and rotational angular speed of the flying body when launched, and has no restrictions on the shape of the flying body, thus being applicable to various experimental scenarios.

[0006] The present application also proposes a working method for the above-mentioned launching device capable of quantitatively controlling translational and rotational speeds.

[0007] The launching device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application comprises: a translational driving system comprising a guide rail, a sliding block and an elastic member, the sliding block sliding on the guide rail, and the elastic member being detachably connected with the sliding block and being used to drive the sliding block to move; A rotating driving system comprises a rotating platform and a motor, the motor is fixed to the sliding block, and the rotating platform is connected with the rotating output shaft of the motor; A clamping mechanism comprises a clamping piece and a clamping release device, the clamping piece is installed to the rotating platform, and the clamping release device drives the clamping piece to open or close; Wherein, the clamping piece can clamp the flying piece, the moving speed of the flying piece can be changed by replacing the elastic piece with different elastic strength, and the rotating angular velocity of the flying piece can be changed by changing the rotating speed of the motor.

[0008] The launching device with quantifiable control of translational and rotational speed has at least the following beneficial effects: the translational speed of the flying piece is controlled by the translational driving system, and the rotating angular velocity of the flying piece is controlled by the rotating driving system, so that the two speeds can be quantified separately without affecting each other. Moreover, the flying piece is clamped by the clamping piece, and the driving mode of the motor driving rotation, without limiting the shape of the flying piece, has higher universality.

[0009] According to some embodiments of the present application, the translational driving system further comprises a release mechanism, the release mechanism can be clamped with the sliding block, and triggering the release mechanism can release the sliding block.

[0010] According to some embodiments of the present application, the release mechanism comprises a fixed plate, a first trigger lever and a first electromagnet, the first trigger lever is hinged with the fixed plate, the end of the first trigger lever can be clamped with the sliding block, and the first electromagnet drives the first trigger lever to flip; when the first electromagnet drives the first trigger lever to flip, the end of the first trigger lever is separated from the clamping with the sliding block, and the sliding block is thereby released.

[0011] According to some embodiments of the present application, the release mechanism further comprises a reset elastic piece, two ends of the reset elastic piece are connected to the first trigger lever and the fixed plate respectively, and the reset elastic piece functions to restore the first trigger lever to the initial state.

[0012] According to some embodiments of the present application, the translational driving system further comprises two speed sensors, two speed sensors are respectively arranged at both ends of the guide rail, and the sliding block can trigger the corresponding speed sensor when moving to the position corresponding to the speed sensor.

[0013] According to some embodiments of the present application, the translational driving system further comprises a limiting piece, the limiting piece is installed at the end of the guide rail, and the limiting piece can contact with the sliding block to limit the sliding block from rushing out of the guide rail.

[0014] According to some embodiments of the present application, the limiting member comprises a buffer elastic member, which is capable of directly contacting the slider and converting kinetic energy of the slider into elastic potential energy.

[0015] According to some embodiments of the present application, the rotary driving system further comprises a counterweight, which is detachably mounted on the rotary platform, and is used to adjust a dynamic balance state of the rotary platform.

[0016] According to some embodiments of the present application, the clamping releasing device comprises a second trigger lever and a second electromagnet, the second trigger lever is hinged to the rotary platform, one end of the second trigger lever is in contact with the clamping member, the other end of the second trigger lever is in contact with an output end of the second electromagnet, the output end of the second electromagnet is capable of displacement along its axial direction, so as to trigger the clamping member through the second trigger lever.

[0017] The working method of the second aspect embodiment of the present application is based on the above-mentioned launch device capable of quantitatively controlling translational and rotational speeds, and comprises the following steps: The elastic member is selected and connected with the slider, so that the elastic member stores elastic potential energy; The flying member to be tested is mounted on the clamping member; The rotational speed of the motor is set, and the launch test is prepared; The motor is started, and the rotary platform drives the flying member to rotate; After the flying member reaches the set angular velocity requirement, the slider is released; The elastic potential energy in the elastic member is converted into kinetic energy of the slider, and the slider moves rapidly along the guide rail; The clamping releasing device triggers during the translation of the slider, so that the clamping member releases the flying member; The flying member flies out of the clamping member with a set translational speed and rotational angular velocity.

[0018] The working method of the embodiment of the present application has at least the following beneficial effects: the translational speed of the flying member can be changed by selecting a suitable elastic member, and the rotational angular velocity of the flying member can be changed by adjusting the rotational speed of the motor, so that the translational speed and the rotational angular velocity of the flying member are controlled separately.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are intended to provide a further understanding of the technical solutions of the present application and constitute a part of the specification, and are used together with the embodiments disclosed in the present application to explain the technical solutions of the present application, and do not constitute a limitation on the technical solutions of the present application.

[0021] Figure 1 A first perspective structural schematic diagram of the launch device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application; Figure 2 A second perspective structural schematic diagram of the launch device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application; Figure 3 A first perspective structural schematic diagram of the launch device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application; Figure 2 A local enlarged view at A in FIG. 4; Figure 4 A first perspective structural schematic diagram of the launch device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application; Figure 5 A second perspective structural schematic diagram of the launch device capable of quantitatively controlling translational and rotational speeds according to the first aspect of the present application.

[0022] Reference signs: 100-translation driving system, 110-guide rail, 120-sliding block, 130-elastic member, 140-release mechanism, 141-fixed plate, 142-first trigger rod, 143-first electromagnet, 144-reset elastic member, 150-speed sensor, 160-limiting member, 161-buffer elastic member, 200-rotation driving system, 210-rotation platform, 220-motor, 230-counterweight, 300-clamping mechanism, 310-clamping member, 320-clamping release device, 321-second trigger rod, 322-second electromagnet. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary, and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0024] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0026] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0027] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] In physical teaching and research experiments, it is often necessary to study the relationship between the motion trajectory of a rotating flying body and its initial motion parameters. The initial motion parameters include but are not limited to translational velocity, angular velocity of rotation, and launch angle, etc. In research experiments, single variable control is generally required, so it is necessary to quantitatively control each initial motion parameter.

[0029] Existing launching devices mostly rely on manual operation, and it is difficult to achieve quantitative control of parameters and repetitive launching, which affects the accuracy and comparability of experimental data. In this regard, some researchers have proposed using flying disc launchers and other existing flying body launching devices in the market, which can quantitatively control the launch speed and launch angle, thereby meeting the needs of some experimental scenarios.

[0030] However, such flying disc launchers also have their limitations. Since they generally use a rotating wheel to drive, when the outer edge of the flying disc contacts the high-speed rotating wheel, the flying disc obtains a certain translational velocity and angular velocity of rotation through friction, so that the flying disc is launched from the flying disc launcher. First of all, this driving method makes the translational velocity and the angular velocity of rotation of the flying body related to each other, and it is difficult to quantitatively control one of the parameters alone, which is not conducive to detailed research experiments. Secondly, this driving method requires the flying body to be disc-shaped, and when the flying body is of other shapes (for example, a boomerang), it cannot be used, which also limits the use scenarios of such flying body launching devices.

[0031] To this end, the application provides a launch device capable of quantitatively controlling translational and rotational speeds, which separately controls translational speed of a flight member through a translational driving system and separately controls rotational angular speed of the flight member through a rotational driving system, so that the two speeds can be quantitatively controlled separately without affecting each other. Moreover, the flight member is clamped by a clamping member, and the driving mode of the rotational driving system driven by a motor, without limiting the shape of the flight member, has higher versatility.

[0032] In addition, the application also provides a working method of the launch device capable of quantitatively controlling translational and rotational speeds, which can change the translational speed of the flight member by selecting a suitable elastic member and can change the rotational angular speed of the flight member by adjusting the rotational speed of the motor, so as to separately control the translational speed and the rotational angular speed of the flight member.

[0033] Reference Figure 1 and Figure 2 The launch device capable of quantitatively controlling translational and rotational speeds in the first aspect of the application comprises a translational driving system 100, a rotational driving system 200 and a clamping mechanism 300. The translational driving system 100 is used to drive the flight member to translate; the rotational driving system 200 is used to drive the flight member to rotate; and the clamping mechanism 300 is used to clamp the flight member and timely release the flight member after the flight member reaches a preset translational initial speed and rotational angular speed, so as to realize launching of the flight member. Since the driving of the translational driving system 100 and the rotational driving system 200 is independent of each other, the translational initial speed and the rotational angular speed of the flight member can be controlled separately, avoiding affecting each other. Moreover, the clamping mechanism 300 is used to clamp the flight member, and the shape of the flight member has no requirement, which can be used for experiments on more diversified flight members.

[0034] Specifically, the translational driving system 100 comprises a guide rail 110, a sliding block 120 and an elastic member 130. The sliding block 120 slides on the guide rail 110, and the elastic member 130 is detachably connected with the sliding block 120 and is used to drive the sliding block 120 to move. It is worth noting that the elastic member 130 can be replaced, so that the movement speed of the sliding block 120 can be adjusted by replacing elastic members 130 with different elastic strengths.

[0035] Reference Figure 4 and Figure 5 The rotational driving system 200 comprises a rotating platform 210 and a motor 220. The motor 220 is fixed to the sliding block 120, and the rotating platform 210 is connected with a rotating output shaft of the motor 220, so that the rotating platform 210 can rotate under the driving of the motor 220. By adjusting the output power of the motor 220, the rotational angular speed of the rotating platform 210 can be adjusted.

[0036] The clamping mechanism 300 comprises a clamping piece 310 and a clamping release device 320. The clamping piece 310 is mounted to the rotating platform 210, and the clamping release device 320 drives the clamping piece 310 to open or close. The clamping piece 310 can clamp the flight piece, and after the rotating platform 210 is driven to rotate by the motor 220, the flight piece clamped by the clamping piece 310 can rotate synchronously. When the clamping release device 320 drives the clamping piece 310 to open, the flight piece can fly outward in autorotation.

[0037] Further, referring to Figure 3 , the translation driving system 100 further comprises a release mechanism 140, the release mechanism 140 can be clamped with the sliding block 120, and triggering the release mechanism 140 can release the sliding block 120, so that the sliding block 120 can move along the guide rail 110 under the driving of the elastic piece 130.

[0038] For the specific structure of the release mechanism 140, it comprises a fixed plate 141, a first trigger lever 142 and a first electromagnet 143. The first trigger lever 142 is hinged to the fixed plate 141, the end of the first trigger lever 142 can be clamped with the sliding block 120, and the first electromagnet 143 drives the first trigger lever 142 to flip. Specifically, the first electromagnet 143 is provided with an output end which can be extended and retracted in the axial direction, the output end is in contact with the first trigger lever 142, and the extension and retraction of the output end can drive the first trigger lever 142 to flip. Therefore, when the first electromagnet 143 drives the first trigger lever 142 to flip, the end of the first trigger lever 142 is separated from the clamping with the sliding block 120, and the sliding block 120 is thereby released.

[0039] Optionally, the release mechanism 140 further comprises a reset elastic piece 144, the two ends of the reset elastic piece 144 are connected to the first trigger lever 142 and the fixed plate 141 respectively, and the reset elastic piece 144 functions to restore the first trigger lever 142 to the initial state.

[0040] Further, the translation driving system 100 further comprises two speed sensors 150, the two speed sensors 150 are respectively arranged at the two ends of the guide rail 110, and the sliding block 120 can trigger the corresponding speed sensor 150 when moving to the position corresponding to the speed sensor 150. Therefore, in the process of being driven by the elastic piece 130, the sliding block 120 will trigger the two speed sensors 150 in turn, and thus the time taken by the sliding block 120 to pass through the two speed sensors 150 can be obtained. The distance between the two speed sensors 150 is divided by the time taken by the sliding block 120 to move between the two speed sensors 150, and the movement speed of the sliding block 120 can be obtained.

[0041] For the specific structure of the speed sensor 150, photoelectric gate sensor, contact sensor or acoustic ranging sensor can be used, which will not be described here.

[0042] Optionally, the translation driving system 100 further comprises a limiting member 160 installed at the end of the guide rail 110, which can contact the sliding block 120 to limit the sliding block 120 from rushing out of the guide rail 110. Further, the limiting member 160 comprises a buffer elastic member 161, which is elastic and can directly contact the sliding block 120 and convert the kinetic energy of the sliding block 120 into elastic potential energy, thereby playing a role of buffering and absorbing energy and reducing the damage caused by the impact of the sliding block 120 to the limiting member 160.

[0043] Further, the rotation driving system 200 further comprises a counterweight 230 which is detachably installed on the rotating platform 210, and the counterweight 230 is used to adjust the dynamic balance state of the rotating platform 210, so that the center of gravity of the whole formed by the components on the rotating platform 210 is maintained on the rotation central axis of the rotating platform 210 after the clamping mechanism 300 clamps the flight member, thereby avoiding the occurrence of large shaking in the rotation process due to the imbalance of the dynamic balance.

[0044] It is easy to understand that the counterweight 230 can be replaced, and by changing the counterweight 230 with different weights, the dynamic balance state of the rotating platform 210 can be changed.

[0045] Specifically, the clamping and releasing device 320 comprises a second trigger lever 321 and a second electromagnet 322. The second trigger lever 321 is hinged to the rotating platform 210, one end of the second trigger lever 321 is in contact with the clamping member 310, and the other end of the second trigger lever 321 is in contact with the output end of the second electromagnet 322, and the output end of the second electromagnet 322 can displace along its axial direction, thereby triggering the clamping member 310 through the second trigger lever 321.

[0046] The working method in the second aspect of the present application is based on the above-mentioned launch device which can quantitatively control the translation and rotation speed, and comprises the following steps: S100. Selecting an elastic member 130 and connecting it with the sliding block 120, so that the elastic member 130 stores elastic potential energy; S200. Installing the flight member to be tested on the clamping member 310; S300. Setting the rotation speed of the motor 220 and preparing to conduct the launch experiment; S400. Starting the motor 220, and the rotating platform 210 drives the flight member to rotate; S500. Releasing the sliding block 120 when the flight member reaches the set angular velocity requirement; S600. Converting the elastic potential energy in the elastic member 130 into the kinetic energy of the sliding block 120, and the sliding block 120 moves quickly along the guide rail 110; S700. The clamping release device 320 is triggered during the translation of the slider 120, so that the clamping piece 310 releases the flight piece; S800. The flight piece flies out from the clamping piece 310 with a set translation speed and rotation angular velocity, and the launching work of the flight piece is completed.

[0047] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A launch device that can quantitatively control translational and rotational speeds, characterized by, The application relates to a flight test device, which comprises the following parts: a translation driving system, a rotation driving system, a clamping mechanism and a release mechanism. The translation driving system comprises a guide rail, a sliding block and an elastic piece, the sliding block slides on the guide rail, and the elastic piece is detachably connected with the sliding block and is used for driving the sliding block to move. The rotation driving system comprises a rotating platform and a motor, the motor is fixed to the sliding block, and the rotating platform is connected with the rotating output shaft of the motor. The clamping mechanism comprises a clamping piece and a clamping release device, the clamping piece is installed to the rotating platform, and the clamping release device drives the clamping piece to open or close. The clamping piece can clamp a flying piece, the moving speed of the flying piece can be changed by replacing the elastic piece with different elastic strength, and the angular speed of the flying piece can be changed by changing the rotating speed of the motor.

2. The launch device of claim 1, wherein: The translation driving system further comprises a release mechanism, the release mechanism can be clamped with the sliding block, and triggering the release mechanism can release the sliding block.

3. The launch device of claim 2, wherein: The release mechanism comprises a fixed plate, a first trigger lever and a first electromagnet, the first trigger lever is hinged to the fixed plate, the end of the first trigger lever can be clamped with the sliding block, and the first electromagnet drives the first trigger lever to flip; when the first electromagnet drives the first trigger lever to flip, the end of the first trigger lever is separated from the clamping with the sliding block, and the sliding block is thus released.

4. The launch device of claim 3, wherein: The release mechanism further comprises a reset elastic piece, the two ends of the reset elastic piece are respectively connected to the first trigger lever and the fixed plate, and the reset elastic piece is used for making the first trigger lever return to the initial state.

5. The launch device of claim 1, wherein: The translation driving system further comprises two speed sensors, the two speed sensors are respectively arranged at the two ends of the guide rail, and the sliding block can trigger the corresponding speed sensor when moving to the position corresponding to the speed sensor.

6. The launch device of claim 1, wherein: The translation driving system further comprises a limiting piece, the limiting piece is installed at the end of the guide rail, and the limiting piece can contact with the sliding block to limit the sliding block from rushing out of the guide rail.

7. The launch device of claim 6, wherein: The limiting piece comprises a buffer elastic piece, the buffer elastic piece can directly contact with the sliding block and converts the kinetic energy of the sliding block into elastic potential energy.

8. The launch device of claim 1, wherein: The rotation driving system further comprises a counterweight, the counterweight is detachably installed on the rotating platform, and the counterweight is used for adjusting the dynamic balance state of the rotating platform.

9. The launch device of claim 1, wherein: The clamping release device comprises a second trigger lever and a second electromagnet, the second trigger lever is hinged to the rotating platform, one end of the second trigger lever contacts with the clamping piece, the other end of the second trigger lever contacts with the output end of the second electromagnet, the output end of the second electromagnet can be displaced along the axial direction, and thus the clamping piece is triggered through the second trigger lever.

10. A method of operating a launcher according to any one of claims 1 to 9, wherein, The application further relates to a flight test method. The elastic piece is selected and connected with the sliding block, and the elastic piece stores elastic potential energy. The flying piece to be tested is installed to the clamping piece. The rotating speed of the motor is set, and the launching test is prepared. The motor is started, and the rotating platform drives the flying piece to rotate. When the flying piece reaches the set angular speed requirement, the sliding block is released. The elastic potential energy in the elastic member is converted into kinetic energy of the slider, which moves rapidly along the guide rail; The clamping release device triggers during the translation of the slider, so that the clamping member releases the flying member; The flying member flies out of the clamping member with a set translational speed and rotational angular velocity.

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