Auxiliary propulsion device for underwater vehicle

Abstract

The utility model relates to the technical field of underwater navigation propulsion, and provides an underwater vehicle auxiliary propulsion device which comprises a pressure-resistant shell and two propulsion mechanisms which are perpendicular to each other and installed in the pressure-resistant shell in a sealed mode, and each propulsion mechanism comprises an upper guide cylinder, an installation cylinder, a lower guide cylinder, a propeller, a propeller installation frame, a propeller cable and a watertight plug. Wherein the upper guide cylinder is coaxially assembled on the inner side of one end of the mounting cylinder, the lower guide cylinder is coaxially assembled on the inner side of the other end of the mounting cylinder, the propeller mounting frame is fixedly arranged on the inner wall of the mounting cylinder, and the propeller is coaxially arranged in a cylinder body formed by the upper guide cylinder, the mounting cylinder and the lower guide cylinder by being fixed on the propeller mounting frame. One end of the propeller cable is electrically connected with the propeller, and the other end of the propeller cable is electrically connected with a watertight plug fixed on the side wall of the mounting cylinder. According to the utility model, hovering and steering of the underwater vehicle during operation can be realized, and a pressure-resistant sealing environment is provided for an electrical part of the underwater vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater navigation propulsion, in particular to an auxiliary propulsion device for an underwater vehicle. Background Art

[0002] The auxiliary propulsion technology of underwater vehicles is increasingly widely used in the underwater field. At present, the auxiliary propulsion device of underwater vehicles is mainly composed of a shell and a propeller, wherein the shell is made by integral casting, a watertight pressure-resistant cabin is formed inside, and the propeller is fixed in the guide hole of the pressure-resistant shell by a clamp. This auxiliary propulsion device has good pressure resistance and sealing performance, which enables it to effectively realize its functions while keeping the internal environment from being invaded by external high pressure.

[0003] In practical applications, the auxiliary propulsion device based on the one-piece cast shell has the following shortcomings: 1. The manufacturing process is cumbersome, and the complex shell structure increases the technical difficulty of integrated casting, prolongs the production cycle, and pushes up the manufacturing cost; 2. Assembly and maintenance are inconvenient. Due to the limited size of the guide hole, the space for propeller installation and subsequent maintenance operations is narrow, which increases the complexity of on-site assembly and subsequent maintenance; 3. The economic benefits are poor. The high initial production investment and the high cost of subsequent maintenance make it difficult to effectively control the cost during the entire service life, which in turn affects the popularization and promotion of auxiliary propulsion technology in the underwater vehicle industry.

[0004] Therefore, how to provide an auxiliary propulsion device for underwater vehicles that is easy to manufacture, has a simple structure, is easy to assemble and maintain, and has low cost has become a technical problem that needs to be solved urgently. Utility Model Content

[0005] In view of this, in order to overcome the deficiencies of the prior art, the utility model aims to provide an auxiliary propulsion device for an underwater vehicle.

[0006] The utility model provides a device, which comprises a pressure-resistant shell and two propulsion mechanisms which are perpendicular to each other and sealed and installed in the pressure-resistant shell. The propulsion mechanism comprises an upper guide tube, a mounting tube, a lower guide tube, a propeller, a propeller mounting frame, a propeller cable and a watertight plug, wherein the upper guide tube is coaxially assembled on the inner side of one end of the mounting tube, the lower guide tube is coaxially assembled on the inner side of the other end of the mounting tube, the propeller mounting frame is fixedly arranged on the inner wall of the mounting tube, the propeller is coaxially arranged in a cylinder body composed of the upper guide tube, the mounting tube and the lower guide tube by being fixed on the propeller mounting frame, one end of the propeller cable is electrically connected to the propeller, and the other end of the propeller cable is electrically connected to the watertight plug fixed on the side wall of the mounting tube.

[0007] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a positioning hole is provided at one end of the mounting tube, a positioning pin is provided in the positioning hole, and when the upper guide tube is coaxially arranged on the inner side of one end of the mounting tube, the mounting tube and the upper guide tube are radially fixed by the positioning pin.

[0008] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a first sealing groove is provided on the inner wall of the end of the mounting tube, and when the upper guide tube is coaxially arranged on the inner side of one end of the mounting tube, the mounting tube is sealed by providing a first sealing ring in the first sealing groove.

[0009] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a plug mounting hole is provided on the side wall at one end of the mounting tube, and a watertight plug electrically connected to the propeller cable is coaxially assembled in the plug mounting hole of the mounting tube.

[0010] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a second sealing groove is provided at the end of the watertight plug on the inner wall of the mounting tube, and a second sealing ring is provided in the second sealing groove.

[0011] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a plug mounting washer and a plug mounting nut are arranged on the outside of the watertight plug outside the mounting tube, and the watertight plug is axially fixed by the plug mounting washer and the plug mounting nut.

[0012] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, the pressure-resistant shell is a cylindrical thin-walled shell as a whole, and four stepped holes are arranged on the pressure-resistant shell, and every two stepped holes are symmetrically arranged as a group, and the two groups of stepped holes are perpendicular to each other.

[0013] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, the upper guide tube is fixed in the stepped hole by a fastener.

[0014] Preferably, in the underwater vehicle auxiliary propulsion device of the utility model, a third sealing groove is provided on the inner wall of the bottom end of the stepped hole, and when the upper guide tube is coaxially arranged in the stepped hole of the pressure-resistant shell, a third sealing ring is provided in the third sealing groove.

[0015] The underwater vehicle auxiliary propulsion device of the utility model changes the propulsion auxiliary device of the integrally cast pressure-resistant shell and propeller into a split installation structure which is easy to install, has a stable structure, good pressure resistance, and lower production, use and maintenance costs. It can be used to carry vertical and lateral auxiliary propellers and control devices to realize the hovering and steering functions of the underwater vehicle during operation, and provide a pressure-resistant sealing environment for its electrical part. It has broad application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments 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.

[0017] Figure 1 This is a structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model;

[0018] Figure 2 This is a structural example diagram of a propulsion mechanism of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model;

[0019] Figure 3 This is a partial structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model;

[0020] Figure 4 Another partial structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model;

[0021] Figure 5 This is another partial structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model;

[0022] In the figure, 1-pressure-resistant shell, 2-propulsion mechanism, 21-upper guide tube, 22-mounting tube, 23-lower guide tube, 24-thruster, 25-thruster mounting frame, 26-thruster cable, 27-watertight plug, 28-fastener, 221-positioning hole, 222-positioning pin, 223-first sealing groove, 224-first sealing ring, 225-plug mounting hole, 271-second sealing groove, 272-second sealing ring, 273-plug mounting gasket, 274-plug mounting nut, 11-step hole, 12-third sealing groove, 13-third sealing ring. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0024] It should be noted that the following embodiments and features in the embodiments may be combined with each other in the absence of conflict; and, based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work are within the scope of protection of the present disclosure.

[0025] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0026] Figure 1 FIG. 1 is a structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model, as shown in FIG. Figure 1 As shown, the underwater vehicle auxiliary propulsion device of this embodiment includes a pressure-resistant shell 1 and two propulsion mechanisms 2 which are perpendicular to each other and sealed and installed in the pressure-resistant shell 1.

[0027] Figure 2 FIG. 1 is a structural example diagram of a propulsion mechanism of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model, as shown in FIG. Figure 1 and Figure 2 As shown, the propulsion mechanism 2 of this embodiment includes an upper guide tube 21, a mounting tube 22, a lower guide tube 23, a thruster 24, a thruster mounting frame 25, a thruster cable 26 and a watertight plug 27, wherein the upper guide tube 21 is coaxially assembled on the inner side of one end of the mounting tube 22, the lower guide tube 23 is coaxially assembled on the inner side of the other end of the mounting tube 22, the thruster mounting frame 25 is fixedly arranged on the inner wall of the mounting tube 22, the thruster 24 is coaxially arranged in the cylinder body composed of the upper guide tube 21, the mounting tube 22 and the lower guide tube 23 by being fixed on the thruster mounting frame 25, one end of the thruster cable 26 is electrically connected to the thruster 24, and the other end of the thruster cable 26 is electrically connected to the watertight plug 27 fixed on the side wall of the mounting tube 22.

[0028] Figure 3 FIG. 1 is a partial structural example diagram of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model, as shown in FIG. Figure 1 , Figure 2 and Figure 3 As shown, a positioning hole 221 is provided at one end of the installation cylinder 22, and a positioning pin 222 is provided in the positioning hole 221. When the upper guide cylinder 21 is coaxially arranged on the inner side of one end of the installation cylinder 22, the installation cylinder 22 and the upper guide cylinder 21 are radially fixed by the positioning pin 222. It should be noted that in this embodiment, the other end of the installation cylinder 22 and the lower guide cylinder 23 can also adopt the same structural arrangement and assembly.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, in the underwater vehicle auxiliary propulsion device of this embodiment, a first sealing groove 223 is provided on the inner wall of the end of the mounting tube 22. When the upper guide tube 21 is coaxially arranged on the inner side of one end of the mounting tube 22, the mounting tube 22 is sealed by providing a first sealing ring 224 in the first sealing groove 223. In this embodiment, the other end of the mounting tube 22 and the lower guide tube 23 can also be sealed by adopting the same structural arrangement and assembly. In practical applications, the first sealing ring 224 is an O-ring, which can be made of nitrile rubber or fluororubber material to ensure the pressure resistance of the propulsion mechanism 2 and the pressure-resistant shell 1.

[0030] Figure 4 FIG. 2 is another partial structural example of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model. Figure 1 , Figure 2 and Figure 4 As shown, a plug mounting hole 225 is provided on the side wall at one end of the mounting tube 22 , and a watertight plug 27 electrically connected to the thruster cable 26 is coaxially assembled in the plug mounting hole 225 of the mounting tube 22 .

[0031] In actual application, a second sealing groove 271 is set at the end of the watertight plug 27 on the inner wall of the mounting tube 22, and a second sealing ring 272 is set in the second sealing groove 271. A plug mounting gasket 273 and a plug mounting nut 274 are set on the outside of the watertight plug 27 outside the mounting tube 22, and the watertight plug 27 is axially fixed by the plug mounting gasket 273 and the plug mounting nut 274.

[0032] Figure 5 FIG. 2 is another partial structural example of an auxiliary propulsion device for an underwater vehicle according to an embodiment of the utility model. Figure 1 , Figure 2 and Figure 5 As shown, the pressure-resistant shell 1 is a cylindrical thin-walled shell as a whole. In practical applications, the pressure-resistant shell 1 of a cylindrical thin-walled shell has the advantages of good pressure resistance, large internal space and convenient manufacturing. Four step holes 11 are arranged on the pressure-resistant shell 1, and every two step holes 11 are symmetrically arranged as a group, and the two groups of step holes 11 are perpendicular to each other. The upper guide tube 21 is fixed in the step hole 11 by a fastener 28. In practical applications, a third sealing groove 12 is arranged on the inner wall of the bottom end of the step hole 11. When the upper guide tube 21 is coaxially arranged in the step hole 11 of the pressure-resistant shell 1, a third sealing ring 13 is arranged in the third sealing groove 12. In practical applications, the third sealing ring 13 is an O-ring, which can be made of nitrile rubber or fluororubber material to ensure the pressure resistance of the device.

[0033] like Figure 1As shown, the underwater vehicle auxiliary propulsion device of this embodiment includes a pressure-resistant shell 1 and two sets of propulsion mechanisms 2, wherein one set of propulsion mechanisms 2 is installed vertically and the other set of propulsion mechanisms 2 is installed horizontally. The two sets of propulsion mechanisms 2 can provide the forward and reverse thrusts required by the underwater vehicle. The vertical and horizontal propulsion mechanisms 2 work under electrical control and execute corresponding instructions to realize the hovering and steering functions of the underwater vehicle.

[0034] According to the underwater vehicle auxiliary propulsion device of the embodiment of the utility model, the propeller auxiliary device of the integrally cast pressure-resistant hull and the propeller is changed into a split installation structure which is easy to install, has a stable structure, good pressure resistance, and lower production, use and maintenance costs. It can be used to carry vertical and lateral auxiliary propellers and control devices to realize the hovering and steering functions of the underwater vehicle during operation, and provide a pressure-resistant sealing environment for its electrical part. It has broad application prospects and promotion value.

[0035] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An auxiliary propulsion device for an underwater vehicle, characterized in that: The device includes a pressure-resistant shell and two propulsion mechanisms that are perpendicular to each other and sealed and installed in the pressure-resistant shell. The propulsion mechanism includes an upper guide tube, a mounting tube, a lower guide tube, a thruster, a thruster mounting frame, a thruster cable and a watertight plug, wherein the upper guide tube is coaxially assembled on the inner side of one end of the mounting tube, the lower guide tube is coaxially assembled on the inner side of the other end of the mounting tube, the thruster mounting frame is fixedly arranged on the inner wall of the mounting tube, the thruster is coaxially arranged in a cylinder body composed of the upper guide tube, the mounting tube and the lower guide tube by being fixed on the thruster mounting frame, one end of the thruster cable is electrically connected to the thruster, and the other end of the thruster cable is electrically connected to the watertight plug fixed on the side wall of the mounting tube.

2. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: A positioning hole is arranged at one end of the installation cylinder, and a positioning pin is arranged in the positioning hole. When the upper guide cylinder is coaxially arranged on the inner side of one end of the installation cylinder, the installation cylinder and the upper guide cylinder are radially fixed by the positioning pin.

3. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: A first sealing groove is arranged on the inner wall of the end of the installation tube. When the upper guide tube is coaxially arranged on the inner side of one end of the installation tube, the installation tube is sealed by arranging a first sealing ring in the first sealing groove.

4. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: A plug installation hole is arranged on a side wall at one end of the installation tube, and a watertight plug electrically connected to the thruster cable is coaxially assembled in the plug installation hole of the installation tube.

5. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: A second sealing groove is arranged at the end of the watertight plug on the inner wall of the mounting tube, and a second sealing ring is arranged in the second sealing groove.

6. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: A plug mounting washer and a plug mounting nut are arranged on the outer side of the watertight plug on the outer side of the mounting tube, and the watertight plug is axially fixed by the plug mounting washer and the plug mounting nut.

7. The underwater vehicle auxiliary propulsion device according to claim 1, characterized in that: The pressure-resistant shell is a cylindrical thin-wall shell as a whole. Four stepped holes are arranged on the pressure-resistant shell. Every two stepped holes are symmetrically arranged as a group, and the two groups of stepped holes are perpendicular to each other.

8. The underwater vehicle auxiliary propulsion device according to claim 7, characterized in that: The upper guide tube is fixed in the stepped hole by fasteners.

9. The underwater vehicle auxiliary propulsion device according to claim 8, characterized in that: A third sealing groove is arranged on the inner wall of the bottom end of the stepped hole. When the upper guide tube is coaxially arranged in the stepped hole of the pressure-resistant shell, a third sealing ring is arranged in the third sealing groove.

Images