CN216783821U

CN216783821U - Attitude adjusting device for underwater vehicle

Info

Publication number: CN216783821U
Application number: CN202220411979.1U
Authority: CN
Inventors: 李红霞
Original assignee: Wuxi Institute of Technology
Current assignee: Wuxi Institute of Technology
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-06-21
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a posture adjusting device of an underwater vehicle, which is characterized by comprising a port tank, a starboard tank with the same structure as the port tank, a first pipeline for communicating the upper parts of the port tank and the starboard tank, and a second pipeline for communicating the lower parts of the port tank and the starboard tank, wherein a hydraulic press is also arranged on the first pipeline; and the port tank and the starboard tank are respectively provided with an isolation mechanism which is used for isolating the first medium and the second medium and has ductility. Through setting up the isolation mechanism who has ductility in attitude adjusting device, can effectually separate the hydraulic oil and the mercury that the proportion is different in the ship board jar, when adjusting two ship board jar interior medium proportions through hydraulic press and two pipelines, the problem that mercury got into first pipeline can not appear yet, and is effectual sealed with mercury to the effectual life who prolongs each hydraulic component.

Description

Attitude adjusting device for underwater vehicle

Technical Field

The utility model relates to the field of deep sea equipment, in particular to an attitude adjusting device for an underwater vehicle.

Background

Underwater vehicles are one of the most prominent tools in current ocean exploration research. In order to adjust the moving posture of the carrier in water and enable the pitch angle or the roll angle to meet the requirements of operation of the carrier, posture adjusting devices are arranged on the underwater carrier.

The existing attitude adjusting device generally realizes the underwater attitude adjustment of a carrier by controlling the weight of medium storage tanks at two sides and the change of the gravity center, the medium storage tanks mostly adopt hydraulic oil and mercury with different specific gravities, the traditional technology utilizes the fact that the mercury and the hydraulic oil are not mutually soluble and have obvious layered states when being mixed, and the aim of actuating the adjustment by adjusting the proportion of the mercury and the hydraulic oil is fulfilled. However, in the actual use process, the mercury often enters the hydraulic oil path of the attitude adjusting device accidentally for various reasons, and the working medium of each hydraulic element is assumed to be hydraulic oil during the design, so that the reliability and the service life of each hydraulic element are greatly influenced by the unqualified medium and the particularity of the mercury medium. In the case of maintenance of the attitude control device, in particular during offshore tests or applications, technicians are often exposed to considerable personal risks due to the short time of the protective equipment and the cumbersome dismantling of the media storage tanks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an attitude regulator for mercury and hydraulic oil in a medium storage tank, which can effectively isolate the mercury from the hydraulic oil.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

the underwater vehicle posture adjusting device comprises a port tank, a starboard tank with the same structure as the port tank, a first pipeline for communicating the upper parts of the port tank and the starboard tank, and a second pipeline for communicating the lower parts of the port tank and the starboard tank, wherein a hydraulic press is further arranged on the first pipeline; the port tank and the starboard tank are filled with a first medium and a second medium which are different in specific gravity, the first medium is immiscible with the second medium, and the first medium is arranged on the upper portion of the second medium;

and the port tank and the starboard tank are respectively provided with an isolation mechanism which is used for isolating the first medium and the second medium and has ductility.

Furthermore, the first medium is hydraulic oil, and the second medium is mercury.

Further, port jar and starboard jar all include cylindrical hollow last barrel and cylindrical hollow lower barrel, go up the one end of barrel and the one end of lower barrel and pass through first fastener demountable installation, go up between the other end of barrel and the upper end cover and pass through second fastener demountable installation between the other end of lower barrel and the lower end cover. The detachable equipment between barrel and upper and lower end cover through last lower barrel and makes things convenient for the installation and the dismantlement of gesture adjuster.

Furthermore, the wall thickness of the joint of the upper barrel body and the lower barrel body, the upper barrel body connected with the upper end cover and the lower barrel body connected with the lower end cover is greater than that of other barrel body parts.

Further, the isolation mechanism comprises an isolation diaphragm, and the isolation diaphragm is detachably mounted at the upper barrel through a third fastener.

Further, the isolation diaphragm is of a corrugated folding structure.

Furthermore, a first O-shaped ring is arranged at the joint of the upper barrel body and the lower barrel body.

Furthermore, second O-shaped rings are arranged at the joint of the upper cylinder body and the upper end cover and the joint of the lower cylinder body and the lower end cover.

Compared with the prior art, the utility model has the following beneficial effects:

(1) according to the utility model, by arranging the malleable isolating mechanism in the attitude adjusting device, hydraulic oil and mercury with different specific gravities in the side tanks can be effectively separated, and when the medium proportion in the two side tanks is adjusted through the hydraulic press and the two pipelines, even if the medium proportion is adjusted to the limit condition, namely the condition that one side tank is completely filled with hydraulic oil and the other side tank is completely filled with mercury, the problem that mercury enters the first pipeline can be avoided, and the mercury is effectively sealed, so that the service life of each hydraulic element is effectively prolonged;

(2) the port and starboard tank is designed into a structure that the upper cylinder and the lower cylinder are detachably connected and the other ends of the upper cylinder and the lower cylinder are detachably mounted through the upper end cover and the lower end cover, so that the problem that when the posture adjusting device is maintained and repaired, the personal injury risk is caused by the fact that technicians directly contact mercury due to the fact that the protective equipment is short in time efficiency and complex in device disassembly is effectively solved;

(3) the thickness of each joint of the O-shaped ring and the cylinder body is increased, so that the sealing performance of the device is improved.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is an enlarged view of the structure of the upper and lower cylinders of the present invention at a.

In the figure: a port tank 1; a starboard tank 2; a first pipeline 3; a second pipeline 4; a hydraulic press 5; an upper cylinder 6; a lower cylinder 7; a first fastener 8; an upper end cover 9; a lower end cap 10; a second fastener 11; an isolation diaphragm 12; a third fastener 13; a pressure ring 14; a first O-ring 15; a second O-ring 16.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1, the underwater vehicle attitude adjusting device comprises a port tank 1, a starboard tank 2 which has the same structure as the port tank 2, a first pipeline 3 which communicates the upper parts of the port tank 1 and the starboard tank 2, and a second pipeline 4 which communicates the lower parts of the port tank 1 and the starboard tank 2, wherein a hydraulic press 5 is further arranged on the first pipeline. The port tank 1 and the starboard tank 2 are filled with a first medium and a second medium which are different in specific gravity, the first medium is immiscible with the second medium and is arranged above the second medium, in one embodiment, the first medium is hydraulic oil, and the second medium is mercury. Hydraulic oil on the upper portion of the port tank 1 is injected into the starboard tank 4 through the first pipeline 3 by the hydraulic press 5, or hydraulic oil on the upper portion of the starboard tank 4 is injected into the port tank 1 through the first pipeline 3, at this time, mercury in the port tank 1 and the starboard tank 2 flows along the second pipeline 4 under the action of the hydraulic oil, so that the left and right weight of the underwater vehicle is unevenly distributed, the center of gravity is changed, a transverse inclination angle is formed, and the underwater attitude of the vehicle is adjusted.

The port tank 1 and the starboard tank 2 both comprise a cylindrical hollow upper cylinder 6 and a cylindrical hollow lower cylinder 7, one end of the upper cylinder 6 and one end of the lower cylinder 7 are connected through a first fastener 8, the other end of the upper cylinder 6 is provided with a detachable upper end cover 9, the other end of the lower cylinder 7 is provided with a detachable lower end cover 10, and the detachable connection mode is realized through a second fastener 11. The wall thickness of the joint of the upper cylinder 6 and the lower cylinder 7 and the cylinder connected with the end cover is larger than that of other parts of the cylinder. In addition, the upper end cover 9 and the lower end cover 10 are both of a two-stage step-shaped structure, the small-diameter ends of the upper end cover 9 and the lower end cover 10 are respectively and tightly sleeved in the upper cylinder 6 and the lower cylinder 7, and the large-diameter ends of the upper end cover 9 and the lower end cover 10 are the same as the outer diameter of the connected cylinders. The structure with the reinforced thickness and the stepped structure can enhance the sealing performance of the device and can be conveniently detached for maintenance.

As shown in fig. 2, the present invention uses a novel structure that a third fastening member 13 and a malleable isolation mechanism fixed on the third fastening member are arranged inside the joint of the upper cylinder 6 and the lower cylinder 7, in one embodiment, the isolation mechanism uses a corrugated folded isolation diaphragm 12, the corrugated folded isolation diaphragm 12 is used for isolating the upper hydraulic oil and the lower mercury, so that the hydraulic oil is confined in a first closed inner cavity formed by the isolation diaphragm 12, the upper parts of the port tank 1 and the starboard tank 2 and the first pipeline 3, and the mercury is confined in a second closed inner cavity formed by the isolation diaphragm 12, the lower parts of the port tank 1 and the starboard tank 2 and the second pipeline 4, and the corrugated folded isolation diaphragm 12 has strong malleability and sealing performance, so that the problem of mercury in the limit condition (the limit condition is the condition that one tank is filled with hydraulic oil and the other tank is filled with mercury, the mercury is very easy to enter the first pipeline in this case) flows into the first pipeline 3 and corrodes the first pipeline 3, and the safety problem caused by the contact of the mercury when maintenance personnel detach and maintain is effectively avoided.

In order to improve the sealing performance of the posture adjusting device, a first O-shaped ring 15 is arranged at the joint of the upper barrel 6 and the lower barrel 7, a second O-shaped ring 16 is arranged at the joint of the upper barrel 6 and the upper end cover 9 and the joint of the lower barrel 7 and the lower end cover 10, and the first O-shaped ring 15 and the second O-shaped ring 16 are made of corrosion-resistant and wear-resistant materials, so that the sealing performance of the device can be effectively enhanced, and the service life of the device can be prolonged.

As shown in fig. 1 and fig. 2, the first fastener 8, the second fastener 11 and the third fastener 13 in the present invention are all in the form of bolts, and corresponding screw holes are provided at the upper cylinder 6, the lower cylinder 7, the upper end cap 9 and the lower end cap 10. Meanwhile, in order to effectively fix the corrugated folded isolation diaphragm 12 at the joint of the upper cylinder 6 and the lower cylinder 7 and prevent the corrugated folded isolation diaphragm 12 from being damaged by the third fastening piece 13 during installation, a pressing ring 14 is arranged between the third fastening piece 13 and the isolation diaphragm 12.

The use method comprises the following steps: as shown in fig. 1, the lower part of the corrugated folded isolation diaphragm is mercury, the upper part is hydraulic oil, and the corrugated folded isolation diaphragm needs to be vertically installed. When the carrier is used, the hydraulic press is started, hydraulic oil of the starboard tank is discharged into the port tank through the first pipeline, at the moment, the corrugated folding isolation diaphragm of the port tank moves downwards to push lower mercury to enter the starboard tank along the second pipeline, mercury in the starboard tank synchronously pushes the isolation diaphragm in the starboard tank to move upwards, and finally, the port tank and the starboard tank have a large amount of hydraulic oil, so that the left side of the carrier is lifted, and vice versa.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be considered as the protection scope of the present invention.

Claims

1. The underwater vehicle posture adjusting device is characterized by comprising a port tank, a starboard tank with the same structure as the port tank, a first pipeline for communicating the upper parts of the port tank and the starboard tank, and a second pipeline for communicating the lower parts of the port tank and the starboard tank, wherein a hydraulic press is further arranged on the first pipeline; the port tank and the starboard tank are filled with a first medium and a second medium which are different in specific gravity, the first medium is immiscible with the second medium, and the first medium is arranged on the upper portion of the second medium;

2. The underwater vehicle attitude adjustment apparatus of claim 1, wherein the first medium is hydraulic oil, and the second medium is mercury.

3. The underwater vehicle attitude adjustment apparatus of claim 1, wherein the port tank and the starboard tank each include a cylindrical hollow upper cylinder and a cylindrical hollow lower cylinder, one end of the upper cylinder and one end of the lower cylinder being detachably mounted by a first fastener, and the other end of the upper cylinder and the upper end cap and the other end of the lower cylinder and the lower end cap being detachably mounted by a second fastener.

4. An attitude adjustment arrangement for an underwater vehicle as claimed in claim 3, wherein the wall thickness at the junction of the upper and lower bodies, at the upper body where the upper body is joined to the upper end cap and at the lower body where the lower body is joined to the lower end cap is greater than the wall thickness at other body locations.

5. An attitude adjustment arrangement for an underwater vehicle as claimed in claim 3, wherein the isolation mechanism comprises an isolation diaphragm removably mounted at the upper barrel by a third fastener.

6. An attitude adjustment arrangement for an underwater vehicle as claimed in claim 5, wherein the isolation diaphragm is of a bellows-type folded configuration.

7. The attitude adjustment device for underwater vehicles of claim 3, wherein a first O-ring is provided at the junction of the upper cylinder and the lower cylinder.

8. The attitude adjustment device for underwater vehicles of claim 3, wherein the joints of the upper cylinder and the upper end cover and the joints of the lower cylinder and the lower end cover are provided with second O-rings.