Portable underwater vehicle floating state adjusting device

Abstract

The invention relates to the technical field of underwater vehicle initial floating state adjustment, and discloses a portable underwater vehicle floating state adjusting device which comprises a shell, a sliding assembly and a balance weight. The shell is a hollow semi-cylinder, and the shell is attached to the inner wall of the underwater vehicle; the sliding assembly is arranged on the shell in the axial direction of the shell, and the balance weight is arranged on the sliding assembly. The sliding assembly can drive the balance weight to move in the axial direction of the shell. According to the invention, the initial floating state of the underwater vehicle is conveniently and efficiently adjusted, and the manpower and time cost of the test are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of initial floating state adjustment of underwater vehicles, and in particular to a portable floating state adjustment device for underwater vehicles. Background Art

[0002] In the process of underwater vehicle development, it is necessary to conduct self-propulsion tests on the model. When conducting self-propulsion tests on underwater vehicles, a very important step is to adjust the initial buoyancy of the underwater vehicle, that is, to adjust the center of gravity of the underwater vehicle so that the underwater vehicle can maintain a relatively horizontal suspension state without external interference. A good initial buoyancy is a prerequisite for effective control of the underwater vehicle's motion.

[0003] In the current pre-test buoyancy adjustment process, testers often use the method of adding weights to different positions of the underwater vehicle for adjustment. The weights are fixed on the bulkhead by glue, etc. After the fixation is completed and the various components and compartments are connected, the underwater vehicle is placed in the water to observe its buoyancy in the water. According to its tail and bow inclinations, floating or sinking, the forward and backward movement of the weights is determined, and the weights are added or reduced. At this time, the underwater vehicle needs to be fished out of the water, the compartments are disassembled, the weights are removed from the glue, and then rearranged according to experience. After several reciprocating disassembly and assembly, a relatively good initial buoyancy can be obtained. The current method of adjusting the buoyancy of underwater vehicles is very time-consuming, labor-intensive, cumbersome and inaccurate. There is an urgent need for a device that can conveniently and efficiently adjust the initial buoyancy without the need for frequent disassembly and assembly of underwater vehicles. Summary of the invention

[0004] In view of this, the present invention provides a portable underwater vehicle buoyancy adjustment device, which can conveniently and efficiently adjust the initial buoyancy of the underwater vehicle, saving the manpower and time cost of the test.

[0005] The present invention is achieved through the following technical solutions: a portable underwater vehicle buoyancy adjustment device, comprising a shell, a sliding assembly and a counterweight; the shell is a hollow semi-cylinder, and the shell is in contact with the inner wall of the underwater vehicle; the sliding assembly is arranged on the shell along the axial direction of the shell, and the counterweight is arranged on the sliding assembly; the sliding assembly can drive the counterweight to move along the axial direction of the shell.

[0006] Furthermore, the sliding assembly includes a groove, a slide, a screw and a motor; a groove is axially arranged on the bottom surface of the shell, and the groove extends horizontally from the front end of the shell to the rear end of the shell; the slide cooperates with the groove and can slide along the groove, and the slide is provided with a threaded through hole along the direction in which the groove is opened; the screw passes through the slide through the threaded through hole, and the thread on the surface of the screw cooperates with the thread of the threaded through hole of the slide; the motor is fixed at the front end of the shell and connected to one end of the screw, and the other end of the screw is limited at the rear end of the shell; the motor drives the screw to rotate, and the rotation of the screw drives the slide to slide along the groove.

[0007] Furthermore, an opening is provided at the bottom of the counterweight, the width of the opening is consistent with the thickness of the slide, the counterweight is inserted perpendicular to the slide, and the counterweight opening is engaged with the slide.

[0008] Furthermore, a through hole is provided on the top of the counterweight, and the through hole cooperates with a screw to be fixedly connected with the slide.

[0009] Furthermore, the cross section of the channel is an inverted T-shape, and the cross section of the slide is an inverted T-shape that is slidably matched with the channel.

[0010] Furthermore, the slide is provided with a plurality of baffles, and the distance between any two adjacent baffles is consistent with the width of the counterweight.

[0011] Furthermore, a hollow structure is arranged on the surface of the shell.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention provides a convenient counterweight installation method, which can adjust the buoyancy by moving the counterweight without dismantling the underwater vehicle, eliminating the process of frequently disassembling and assembling the underwater vehicle, and saving the manpower and time cost of the test.

[0014] 2. The present invention cooperates with the thread of the lead screw and the slide, and can drive the slide to slide in the groove on the shell by controlling the forward and reverse rotation of the motor, thereby driving the movement of the counterweight, so as to achieve the purpose of adjusting the center of gravity, and simply and conveniently adjust the buoyancy of the underwater vehicle.

[0015] 3. The counterweight of the present invention is provided with an opening and the counterweight and the slide are fixed by screws, which can avoid vertical relative displacement between the counterweight and the slide.

[0016] 4. The slide of the present invention is provided with a baffle to prevent the counterweight from being displaced relative to the slide along the direction in which the groove is opened, thereby ensuring a fast and accurate adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the present invention.

[0018] Figure 2 This is a schematic diagram of the present invention installed on an underwater vehicle.

[0019] Among them, 1 is the outer shell, 2 is the counterweight, 3 is the slide, 4 is the screw, 5 is the lead screw, 6 is the motor, 7 is the groove, and 8 is the baffle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] like Figure 1 As shown, the present invention provides a portable underwater vehicle floating state regulating device, including a housing 1, a channel 7, a slide 3, a lead screw 5, a motor 6 and a counterweight 2. The housing 1 is a hollow semi-cylinder, and the housing 1 can be fitted with the inner wall of the underwater vehicle to save space. The cylindrical surface of the housing 1 is provided with a hollow structure to reduce the weight of the overall device; Figure 2 As shown, the present invention is placed in the underwater vehicle and fits with the inner wall thereof, and can be fixed on the underwater vehicle by pins.

[0022] like Figure 1 As shown, a groove 7 is axially arranged on the bottom surface of the housing 1 , and the groove 7 extends horizontally from the front end of the housing 1 to the rear end of the housing 1 ; preferably, the cross section of the groove 7 is an inverted T shape.

[0023] The bottom end of the slide 3 is fitted with the groove 7 and can slide along the groove 7. Preferably, the cross-section of the slide 3 and the groove 7 is an inverted T-shape. The inverted T-shaped groove 7 limits the slide 3 to slide only along the groove 7, and cannot move up and down vertically in the slide groove 7, and cannot flip left and right; the slide 3 is provided with a threaded through hole along the opening direction of the groove 7.

[0024] The lead screw 5 passes through the slide 3 through a threaded through hole, and the surface thread of the lead screw 5 is tightly engaged with the thread of the threaded through hole of the slide 3. The lead screw 5 passes through the threaded through hole from the front end of the shell 1 to the rear end of the shell 1. One end of the lead screw 5 is connected to the motor 6, and the other end of the lead screw 5 is limited at the rear end of the shell 1; the lead screw 5 can only rotate axially and cannot move forward and backward; the motor 6 is welded and fixed to the front end of the shell 1, and the motor 6 can control the lead screw 5 to rotate forward or reverse, and the slide 3 is driven to move along the groove 7 through the rotation of the lead screw 5.

[0025] The bottom of the counterweight 2 is provided with an opening, and the width of the opening is consistent with the thickness of the slide 3. The width of the opening refers to the length of the opening perpendicular to the opening direction of the channel 7, and the thickness of the slide 3 refers to the length of the slide 3 perpendicular to the opening direction of the channel 7. The counterweight 2 is inserted perpendicularly to the slide 3, and the opening of the counterweight 2 cooperates with the slide 3 to clamp the counterweight 2. The top of the counterweight 2 can also be provided with a through hole, and the screw 4 is installed through this through hole to fix the counterweight 2 on the slide 3. The counterweight 2 is provided with an opening and the counterweight 2 and the slide 3 are fixed by the screw 4, which can prevent the counterweight 2 and the slide 3 from having a vertical relative displacement.

[0026] As an improvement, several baffles 8 are provided on the slide 3, and the distance between any two adjacent baffles 8 is consistent with the width of the counterweight 8. The width of the counterweight 8 refers to the length of the counterweight 8 along the direction in which the groove 7 is opened; the counterweight 2 can be inserted between any two adjacent baffles 8.

[0027] Before adjusting the buoyancy, the number of counterweights 2 that need to be added and the position of the center of gravity are roughly obtained through theoretical calculations, the counterweights 2 are reasonably distributed and inserted into the intervals of the baffles 8 on the slide 3, and the screws 4 are fixed on the top of the counterweights 2 to ensure that the counterweights 2 will not have vertical and horizontal relative displacement with the slide 3. Then the underwater vehicle is installed and placed in the water. According to the buoyancy of the underwater vehicle in the water, the movement of the slide 3 is controlled by controlling the rotation of the motor 6. The movement of the slide 3 drives the movement of the counterweights 2. Through multiple adjustments, the underwater vehicle is placed in an ideal buoyancy.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable underwater vehicle buoyancy adjustment device, It is characterized in that It includes a shell, a sliding component and a counterweight; the shell is a hollow semi-cylinder, and the shell is in contact with the inner wall of the underwater vehicle; the sliding component is arranged on the shell along the axial direction of the shell, and the counterweight is arranged on the sliding component; the sliding component can drive the counterweight to move along the axial direction of the shell.

2. The floating state regulating device according to claim 1, It is characterized in that The sliding assembly includes a groove, a slide, a screw and a motor; a groove is axially arranged on the bottom surface of the shell, and the groove extends horizontally from the front end of the shell to the rear end of the shell; the slide cooperates with the groove and can slide along the groove, and the slide is provided with a threaded through hole along the direction in which the groove is opened; the screw passes through the slide through the threaded through hole, and the thread on the surface of the screw cooperates with the thread of the threaded through hole of the slide; the motor is fixed at the front end of the shell and connected to one end of the screw, and the other end of the screw is limited at the rear end of the shell; the motor drives the screw to rotate, and the rotation of the screw drives the slide to slide along the groove.

3. The floating state regulating device according to claim 2, It is characterized in that The bottom of the counterweight is provided with an opening, the width of the opening is consistent with the thickness of the slide, the counterweight is inserted perpendicularly to the slide, and the counterweight opening is engaged with the slide.

4. The floating state regulating device according to claim 2, It is characterized in that A through hole is provided on the top of the counterweight, and the through hole cooperates with a screw to be fixedly connected with the slide.

5. The floating state regulating device according to claim 2, It is characterized in that The cross section of the groove is an inverted T shape, and the cross section of the slide is an inverted T shape and is slidably matched with the groove.

6. The floating state regulating device according to claim 2, It is characterized in that The slide frame is provided with a plurality of baffles, and the distance between any two adjacent baffles is consistent with the width of the counterweight.

7. The floating state regulating device according to any one of claims 1 to 4, It is characterized in that A hollow structure is arranged on the surface of the shell.

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