A variable-attack-angle one-degree-of-freedom towed vehicle launching device

Abstract

The present application relates to underwater launching technology field of navigation body, specifically to a variable attack angle one degree of freedom towed navigation body out of water experimental device, including: the water tank is equipped with base; The skid stand is arranged in the water tank and is rotatably connected with the base, and the skid stand is equipped with lifting structure; The navigation body is arranged on the lifting structure and is connected with the lifting structure through the variable attack angle system; The driving mechanism is arranged on the skid stand, and the driving mechanism is connected with the lifting structure; The tail cavity generating system is rotatably arranged on the base; The fixed support is arranged on the base, and the fixed support is arranged vertically with the skid stand; The yaw angle variable angle system is arranged on the fixed support, and the yaw angle variable angle system is connected with the skid stand, and the skid stand is driven to rotate relative to the fixed support. The experimental device can accurately adjust the angle through the yaw angle variable angle system and the variable attack angle system, and can ensure the accuracy of angle adjustment, the attack angle and the yaw angle angle stability in the movement process.

Description

TECHNICAL FIELD

[0001] The present application relates to the underwater launching technology field of a navigation body, in particular to a variable attack angle one-degree-of-freedom towed navigation body surfacing experiment device. BACKGROUND

[0002] During the underwater vertical launching process, the navigation body changes the motion direction to produce a yaw angle under the influence of lateral forces such as cross flow and boat speed, and the axis is deflected from the motion direction to produce an attack angle, which changes the flow field of the navigation body cavity and further affects the motion trajectory of the navigation body. The influence of the yaw angle and the attack angle on the dynamics of the underwater launching motion of the navigation body cannot be ignored.

[0003] At present, the research on the variable attack angle motion of the navigation body is mostly three-degree-of-freedom experiments with boat speed or steady experiments in a water tunnel. In the three-degree-of-freedom experiment, the size of the attack angle during the motion is changed by controlling the boat speed, but due to the limitation of the size of the experimental equipment, the effect of the attack angle is not obvious, the change range of the attack angle is small, and the size of the attack angle cannot be accurately controlled. In the steady experiment, due to the influence of gravity, the real cavity flow characteristics of the submarine-launched navigation body cannot be met. The water tunnel experiment can change the size of the accurate attack angle, but the operation is complex, has high water tightness requirements, and is limited by the steady experiment and gravity conditions. The water tunnel experiment cannot meet the non-steady submarine-launched navigation body cavity dynamics research characteristics. At present, the research on the yaw angle mostly adopts the inclined launching method, and the axis of the navigation body coincides with the launching direction. In the experimental range, it is difficult to observe the influence of the attack angle on the navigation body at the same time.

[0004] At present, in the field of underwater launching, the research on the yaw angle and the attack angle for the navigation body surfacing experiment is not perfect, and the measurement accuracy of the yaw angle and the attack angle is also lacking in accuracy. Among them, the research on the variable attack angle navigation body underwater launching experiment device with yaw angle has the following problems:

[0005] The experimental device needs to simulate the existence of the yaw angle and the attack angle at the same time. In order to ensure the accuracy of the angle, higher requirements are put forward for the fixation of the angle. The entire experimental environment is underwater, and the sealing problem of the precision parts and electronic equipment. The navigation body has a certain mass, and the bearing problem of the navigation body variable attack angle device. The power source needs to meet the variable yaw angle and the variable attack angle, and also needs to meet the actual situation of the navigation body flow field. The underwater launching navigation body has a high speed, and the power source needs to be high-speed and stable. SUMMARY

[0006] Therefore, the technical problem to be solved by the present application is to overcome the problem that the existing experimental device in the prior art cannot change the yaw angle and the attack angle at the same time in the non-steady underwater launching experiment, so as to provide a variable attack angle one-degree-of-freedom towed navigation body surfacing experiment device.

[0007] In order to solve the above technical problems, the application provides a variable attack angle one-degree-of-freedom towed vehicle water entry experiment device, which comprises a water tank, a base arranged in the water tank, a sliding table support rotatably connected with the base, a lifting structure arranged on the sliding table support, a vehicle arranged on the lifting structure and connected with the lifting structure through a variable attack angle system, a driving mechanism arranged on the sliding table support and connected with the lifting structure, a tail cavity generating system rotatably arranged on the base, a fixing support arranged on the base and arranged perpendicularly to the sliding table support, and a yaw angle variable angle system arranged on the fixing support and connected with the sliding table support to drive the sliding table support to rotate relative to the fixing support.

[0008] Further, the variable attack angle system comprises a rotating pair support arranged on the lifting structure and a riveted bolt sleeved on the rotating pair support and connected with the vehicle.

[0009] Further, the yaw angle variable angle system comprises an angle adjusting lead screw arranged on the fixing support, a lead screw sleeve sleeved on the angle adjusting lead screw, one end of the lead screw sleeve being provided with a connecting rod, an adjusting baffle arranged on the sliding table support and provided with a sliding groove on the adjusting baffle, the sliding groove being suitable for accommodating the connecting rod, and a locking nut sleeved on the connecting rod.

[0010] Further, one end of the angle adjusting lead screw is provided with an adjusting handle.

[0011] Further, two bearing seats are arranged on the fixing support, the two bearing seats are symmetrically arranged, and the angle adjusting lead screw is arranged on the bearing seats.

[0012] Further, the lifting structure comprises a lead screw arranged on the sliding table support and a sliding block arranged on the lead screw, and the variable attack angle system is arranged on the sliding block.

[0013] Further, the driving mechanism comprises a planetary gear speed-up box arranged on the sliding table support and connected with the lead screw and a driving motor connected with the planetary gear speed-up box.

[0014] Further, the tail cavity generating system comprises a tail cavity generating cylinder rotatably arranged on the base, a conveying pipe connected at one end with the tail cavity generating cylinder and at the other end with a vacuum pump, and a gas storage tank connected with the vacuum pump.

[0015] Further, the sliding table support and the tail cavity generating system are connected with the base through the rotating member.

[0016] Further, the fixed support and the base are provided with a tripod.

[0017] The technical scheme has the following advantages:

[0018] 1. The variable attack angle one-degree-of-freedom towed vehicle water-entry experimental device comprises a water tank, a base arranged in the water tank, a sliding support rotatably connected to the base, a lifting structure arranged on the sliding support, a vehicle arranged on the lifting structure and connected to the lifting structure through a variable attack angle system, a driving mechanism arranged on the sliding support and connected to the lifting structure, a tail cavity generating system rotatably arranged on the base, a fixed support arranged on the base and arranged perpendicularly to the sliding support, and a yaw angle variable angle system arranged on the fixed support and connected to the sliding support to drive the sliding support to rotate relative to the fixed support.

[0019] The base arranged in the water tank provides installation positions for the sliding support and the fixed support. The lifting structure is arranged on the sliding support, and the driving mechanism is arranged to be connected to the lifting structure, so that the lifting structure drives the vehicle to move up and down, and the vehicle changes the angle through the variable attack angle system, i.e. changes the yaw angle. The tail cavity generating system is rotatably arranged on the base, so that the angle of the tail cavity generating system can be rotated, and the rotation range is 0° to 15°, so that the tail cavity generating system and the vehicle are always in parallel. The yaw angle variable angle system adjusts the angle of the sliding support.

[0020] The variable attack angle one-degree-of-freedom towed vehicle water-entry experimental device can accurately adjust the angle through the yaw angle variable angle system and the variable attack angle system, can ensure the accuracy of angle adjustment and the stability of attack angle and yaw angle during movement, and is beneficial to attack angle experiments and yaw angle experiments.

[0021] The variable attack angle one-degree-of-freedom towed vehicle water-entry experimental device converts the rotation of the driving mechanism into the translation of the sliding support through the driving mechanism, can adjust the water-entry speed of the vehicle by adjusting the rotation speed of the driving mechanism, and the electronic instruments are all above the water surface, without involving underwater sealing, so as to ensure the accuracy of the experiment.

[0022] The variable attack angle one-degree-of-freedom towed vehicle water-entry experimental device uses the air curtain type vehicle to simulate the actual situation of underwater vehicle ejection, realizes the water-entry experiment of accurate attack angle and yaw angle, and can obtain rich results in the research on underwater launching technology.

[0023] Meanwhile, the variable attack angle one-degree-of-freedom towed vehicle launching experiment device has the advantages of being placed outside the water tank, not needing to be sealed, being convenient to operate, being high in experiment efficiency, being easy to obtain clear image information, being convenient to observe and record images, and the like.

[0024] 2. The variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application, wherein the variable attack angle system comprises a rotating pair support and a riveting bolt, the rotating pair support is arranged on the lifting structure, the riveting bolt is sleeved on the rotating pair support and connected with the vehicle, a through hole is punched on the airfoil of the vehicle and an internal thread is formed, the rotating pair support is welded on the sliding table support, and the attack angle of the vehicle launching can be changed by manually adjusting the vehicle.

[0025] 3. The variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application, wherein a tripod is arranged between the fixing support and the base.

[0026] The summary section is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description section. This summary section is not intended to identify key or essential features of the disclosure, and is not intended to limit the scope of the disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 The structural schematic diagram of the variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application is shown in the figure.

[0029] Figure 2 The structural schematic diagram of the sliding table support of the variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application is shown in the figure.

[0030] Figure 3 The structural schematic diagram of the driving mechanism of the variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application is shown in the figure.

[0031] Figure 4 The structural schematic diagram of the base of the variable attack angle one-degree-of-freedom towed vehicle launching experiment device provided by the present application is shown in the figure.

[0032] Figure 5The structure schematic view of the yaw angle variable angle system of the variable attack angle one-degree-of-freedom towed vehicle water launching experimental device provided by the present application is shown in the figure.

[0033] Figure 6 The structure schematic view of the variable attack angle system of the variable attack angle one-degree-of-freedom towed vehicle water launching experimental device provided by the present application is shown in the figure.

[0034] Figure 7 The structure schematic view of the tail cavity generating system of the variable attack angle one-degree-of-freedom towed vehicle water launching experimental device provided by the present application is shown in the figure.

[0035] Explanation of reference numerals:

[0036] 1, water tank; 2, base; 3, slide bracket; 4, lifting structure; 5, vehicle; 6, variable attack angle system; 7, driving mechanism; 8, tail cavity generating system; 9, fixed support; 10, yaw angle variable angle system; 11, rotating pair support; 12, riveted bolt; 13, angle adjusting lead screw; 14, lead screw sleeve; 15, connecting rod; 16, adjusting baffle; 17, sliding groove; 18, locking nut; 19, adjusting handle; 20, bearing seat; 21, lead screw; 22, sliding block; 23, planetary gear speed-up box; 24, driving motor; 25, tail cavity generating cylinder; 26, conveying pipe; 27, vacuum pump; 28, gas storage tank; 29, rotating part; 30, tripod. DETAILED DESCRIPTION

[0037] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0038] In the description of the disclosure, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "straight", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the disclosure and simplifying the description, and do 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 disclosure. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0039] In the description of the disclosure, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection or can communicate with each other; it can be directly connected, or indirectly connected through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0040] In the disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0041] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present disclosure. For the purpose of simplifying the present disclosure, the components and settings of specific examples are described in the following. Of course, they are merely examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeatedly refer to numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0042] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0043] Please refer to Figures 1 to 7 As shown in the drawings, the present application provides a variable attack angle one degree of freedom towed vehicle launching device, comprising: a water tank 1, a base 2 is arranged in the water tank 1; a sliding table support 3 is arranged in the water tank 1 and is rotatably connected with the base 2, a lifting structure 4 is arranged on the sliding table support 3; a vehicle 5 is arranged on the lifting structure 4 and is connected with the lifting structure 4 through a variable attack angle system 6; a driving mechanism 7 is arranged on the sliding table support 3, the driving mechanism 7 is connected with the lifting structure 4; a tail cavity generating system 8 is rotatably arranged on the base 2; a fixed support 9 is arranged on the base 2, the fixed support 9 is arranged vertically with the sliding table support 3; a yaw angle variable angle system 10 is arranged on the fixed support 9 and is connected with the sliding table support 3, which drives the sliding table support 3 to rotate relative to the fixed support 9.

[0044] By arranging the base 2 inside the water tank 1, the base 2 provides a mounting position for the sliding table support 3 and the fixed support 9. At the same time, the lifting structure 4 is arranged on the sliding table support 3, and the driving mechanism 7 is arranged, the driving mechanism 7 is connected with the lifting structure 4, so as to realize the lifting movement of the lifting structure 4 driving the vehicle 5, and the vehicle 5 changes the angle through the variable attack angle system 6, that is, changes the yaw angle. By rotatably arranging the tail cavity generating system 8 on the base 2, the angle of the tail cavity generating system 8 can be rotated, the rotation range is 0° to 15°, which ensures that the tail cavity generating system 8 and the vehicle 5 are always in parallel state. And using the yaw angle variable angle system 10 to adjust the angle of the sliding table support 3,

[0045] This variable angle of attack one-degree-of-freedom towed vehicle water-emergence experimental device can be precisely adjusted by the yaw angle variable angle system 10 and the variable angle of attack system 6, which can ensure the accuracy of angle adjustment and the stability of the angle of attack and yaw angle during the motion process, which is beneficial to the conduct of relevant angle of attack and yaw angle experiments.

[0046] This variable angle-of-attack, one-degree-of-freedom towed vehicle's water-emergence experimental device uses a drive mechanism 7 for transmission, converting the rotation of the drive mechanism 7 into the translation of the slide support 3. The water-emergence speed of the vehicle 5 can be adjusted by regulating the rotation speed of the drive mechanism 7. Furthermore, all electronic instruments are above the water surface, without involving underwater sealing, ensuring the accuracy of the experiment.

[0047] This variable angle-of-attack, one-degree-of-freedom towed launch vehicle experimental device simulates the actual situation of underwater launch vehicle 5 by using an air curtain-type launch vehicle 5; it achieves precise angle of attack and yaw angle launch experiments, and can yield rich results in the research of underwater launch technology.

[0048] Meanwhile, the variable angle of attack one-degree-of-freedom towed vehicle water-emergence experimental device has its camera and lighting system placed outside the water tank 1, which does not require sealing. It is easy to operate, has high experimental efficiency, can easily obtain clear image information, and is convenient for observation and image recording.

[0049] Among them, the slide bracket 3 and the fixed bracket 9 are made of aluminum profiles. Aluminum profiles have low material density, high structural strength, and strong corrosion resistance, and can support the yaw angle variable angle system 10 and the variable angle of attack system 6.

[0050] In some embodiments, the variable angle of attack system 6 includes a rotating sub-support 11 and a riveting bolt 12. The rotating sub-support 11 is disposed on the lifting structure 4, and the riveting bolt 12 is sleeved on the rotating sub-support 11 and connected to the navigator 5.

[0051] A through hole is drilled and an internal thread is tapped on the airfoil of the hull 5. It is then connected to the rotating sub-support 11 by a riveting bolt 12. The rotating sub-support 11 is welded to the slide support 3. The angle of attack of the hull 5 when it leaves the water can be changed by manually adjusting the hull 5.

[0052] The rotating sub-support 11 is double-eared, which facilitates the connection and fixation of the rivet bolts 12. Since the rivet bolts 12 have a self-locking characteristic, the angle of attack of the hull 5 can remain unchanged during the movement, and it can stably exit the water at a certain angle.

[0053] The variable angle of attack system 6 has a scale, which can be set on the rotating sub-support 11 or on the rivet bolt 12.

[0054] In some embodiments, the yaw angle adjusting system 10 comprises: an angle adjusting screw 13 arranged on the fixed support 9; a screw sleeve 14 sleeved on the angle adjusting screw 13, one end of the screw sleeve 14 being provided with a connecting rod 15; an adjusting baffle 16 arranged on the sliding table support 3, and a sliding groove 17 being arranged on the adjusting baffle 16 and being adapted to accommodate the connecting rod 15; and a locking nut 18 sleeved on the connecting rod 15.

[0055] The adjusting baffle 16 is welded on the sliding table support 3, the connecting rod 15 at one end of the screw sleeve 14 is passed through the sliding groove 17 of the adjusting baffle 16 and is fixed by the locking nut 18 to prevent it from falling off the adjusting baffle 16, the angle adjusting screw 13 is rotated to make the screw sleeve 14 translate, and thus the yaw angle is adjusted.

[0056] In some embodiments, one end of the angle adjusting screw 13 is provided with an adjusting handle 19. The rotation of the angle adjusting screw 13 is realized by the adjusting handle 19.

[0057] In some embodiments, two bearing seats 20 are arranged on the fixed support 9, the two bearing seats 20 are symmetrically arranged, and the angle adjusting screw 13 is arranged on the bearing seats 20.

[0058] The two bearing seats 20 can support the angle adjusting screw 13, and ensure that the angle adjusting screw 13 can rotate relative to the fixed support 9.

[0059] The bearing seats 20 are fixed on the fixed support 9 by bolts, two deep groove ball inner ring bearings are respectively matched with two ends of the screw, and outer rings are matched with the bearing seats 20.

[0060] In some embodiments, the lifting structure 4 comprises: a screw rod 21 arranged on the sliding table support 3; and a sliding block 22 arranged on the screw rod 21, and the variable attack angle system 6 is arranged on the sliding block 22.

[0061] The screw rod 21 is arranged on the sliding table support 3, which provides a mounting position for the screw rod 21, and the sliding block 22 is mounted on the screw rod 21, that is, the driving mechanism 7 drives the screw rod 21 to rotate to realize the lifting movement of the sliding block 22 and drive the lifting movement of the navigation body 5.

[0062] In some embodiments, the driving mechanism 7 comprises: a planetary gear speed increaser 23 arranged on the sliding table support 3, and the planetary gear speed increaser is connected with the screw rod 21; and a driving motor 24 connected with the planetary gear speed increaser 23.

[0063] The planet gear speed increasing box 23 is connected above the sliding support 3, and is connected with the driving motor through a shaft coupling. At the beginning of the experiment, the yaw angle variable angle system 10 is adjusted to the required angle by rotating the adjusting handle 19, and the angle of the tail cavity generating system 8 is also rotated, so that the axis of the tail cavity generating system 8 is parallel to the body 5.

[0064] The rotation speed of the driving motor 24 is stable, and the output rotation speed is high. The speed of the body 5 can be adjusted by adjusting the output of the driving motor 24, so as to meet the required test speed of the experiment. The planet gear speed increasing box 23 is internally provided with a planet gear set. The driving wheel and the driven wheel are both straight tooth involute gears, and the speed increasing ratio is 3.8:1. The output rotation speed of the driving motor 24 is improved through gear transmission, so as to meet the speed requirement of the body 5 in the experimental device. After the speed increasing of the driving motor 24, the maximum speed of the sliding block 22 reaches 5m / s. The surface of the sliding support 3 is coated with waterproof paint, and a waterproof shell is additionally installed on the outer surface of the sliding support 3, so that the guide rails and the lead screws in the sliding support 3 are protected in the shell.

[0065] In the embodiment, the tail cavity generating system 8 comprises a tail cavity generating cylinder 25 rotatably arranged on the base 2, a conveying pipe 26 connected at one end with the tail cavity generating cylinder 25 and at the other end with a vacuum pump 27, and an air storage tank 28 connected with the vacuum pump 27.

[0066] The bottom of the tail cavity generating cylinder 25 is connected with the vacuum pump 27 and the air storage tank 28 through the high-pressure gas conveying pipe 26. A certain amount of gas is filled into the bottom of the tail cavity generating cylinder 25 before the body 5 is launched through a time sequence control system, so as to simulate the gas carrying amount of the tail of the body 5 in the real state.

[0067] In some embodiments, a rotating member 29 is arranged on the base 2, and the sliding support 3 and the tail cavity generating system 8 are connected with the base 2 through the rotating member 29.

[0068] The three-legged support 30 is arranged between the fixed support 9 and the base 2, so as to realize the stable connection between the fixed support 9 and the base 2.

[0069] The variable attack angle one-degree-of-freedom towed underwater vehicle experiment device can accurately adjust the angles through the yaw angle variable angle system and the variable attack angle system, so as to ensure the accuracy of the angle adjustment and the stability of the attack angle and the yaw angle during the movement, and is beneficial to the attack angle experiment and the yaw angle experiment.

[0070] The variable attack angle one-degree-of-freedom towed underwater vehicle launching experimental device uses a driving mechanism to transmit, converts the rotation of the driving mechanism into the translation of the slide bracket, can adjust the launching speed of the underwater vehicle by adjusting the rotating speed of the driving mechanism, and the electronic instruments are all above the water surface, without involving the sealing of the underwater, ensuring the accuracy of the experiment.

[0071] The variable attack angle one-degree-of-freedom towed underwater vehicle launching experimental device uses a driving mechanism to transmit, converts the rotation of the driving mechanism into the translation of the slide bracket, can adjust the launching speed of the underwater vehicle by adjusting the rotating speed of the driving mechanism, and the electronic instruments are all above the water surface, without involving the sealing of the underwater, ensuring the accuracy of the experiment.

[0072] Meanwhile, the variable attack angle one-degree-of-freedom towed underwater vehicle launching experimental device places the camera and lighting system outside the water tank, without needing to be sealed, is convenient to operate, has high experimental efficiency, can easily obtain clear image information, is convenient to observe and record images, and has other characteristics.

[0073] Obviously, the above embodiments are only examples for clearly illustrating, but not limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments cannot be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A variable attack angle one degree of freedom towed vehicle launching device, characterized in that, The utility model relates to a kind of water tank and navigation body, including: Water tank (1), water tank (1) is equipped with pedestal (2) in it; Slide bracket (3), it is equipped in water tank (1), and it is rotatably connected with pedestal (2), slide bracket (3) is equipped with lifting structure (4) on it; Navigation body (5), it is equipped in lifting structure (4), and it is connected with lifting structure (4) by variable attack angle system (6); Driving mechanism (7), it is equipped in slide bracket (3), driving mechanism (7) is connected with lifting structure (4); Tail cavity generation system (8), it is rotatably equipped in pedestal (2); Fixed support (9), it is equipped in pedestal (2), fixed support (9) is vertically arranged with slide bracket (3); Yaw angle variable angle system (10), it is equipped in fixed support (9), and yaw angle variable angle system (10) is connected with slide bracket (3), drives slide bracket (3) relative fixed between rotation.

2. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 1, wherein, Variable attack angle system (6) includes rotating pair support (11) and riveting bolt (12), rotating pair support (11) is equipped in lifting structure (4), riveting bolt (12) is sleeved in rotating pair support (11), and is connected with navigation body (5).

3. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 2, wherein, Yaw angle variable angle system (10) includes: Angle adjusting lead screw (13), it is equipped in fixed support (9); Lead screw sleeve (14), it is sleeved in angle adjusting lead screw (13), and one end of lead screw sleeve (14) is equipped with connecting rod (15); Adjusting baffle (16), it is equipped in slide bracket (3), and sliding groove (17) is equipped on adjusting baffle (16), and sliding groove (17) is suitable for accommodating connection; Locking nut (18), it is sleeved in connecting rod (15).

4. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 3, wherein, One end of angle adjusting lead screw (13) is equipped with adjusting handle (19).

5. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus according to claim 3 or 4, wherein, Two bearing seats (20) are equipped on fixed support (9), two bearing seats (20) are symmetrically arranged, and angle adjusting lead screw (13) is equipped in bearing seat (20).

6. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 5, wherein, Lifting structure (4) includes: Lead screw (21), it is equipped in slide bracket (3); Sliding block (22), it is equipped in lead screw (21), and variable attack angle system (6) is equipped in sliding block (22).

7. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 6, wherein, Driving mechanism (7) includes: Planetary gear speed increasing box (23), it is equipped in slide bracket (3), and planetary gear speed increaser is connected with lead screw (21); Driving motor (24), it is connected with planetary gear speed increasing box (23).

8. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 7, wherein, Tail cavity generation system (8) includes: Tail cavity generation cylinder (25), it is rotatably equipped in pedestal (2); Delivery pipe (26), one end is connected with tail cavity generation cylinder (25), and the other end is connected with vacuum pump (27); Air reservoir (28), it is connected with vacuum pump (27).

9. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of claim 8, wherein, Rotating part (29) is equipped on pedestal (2), and slide bracket (3) and tail cavity generation system (8) are connected with pedestal (2) by rotating part (29).

10. The variable angle of attack one degree of freedom towed vehicle water entry test apparatus of any one of claims 6-9, wherein, Three-legged frame (30) is equipped between fixed support (9) and pedestal (2).

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