CN216916198U

CN216916198U - Cabin door opening and closing mechanism of underwater unmanned vehicle

Info

Publication number: CN216916198U
Application number: CN202122946987.4U
Authority: CN
Inventors: 韩忠磊; 鲁鹏
Original assignee: Yichang Testing Technique Research Institute
Current assignee: Yichang Testing Technique Research Institute
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-07-08
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses an opening and closing mechanism for a cabin door of an underwater unmanned vehicle, which comprises: the hydraulic cylinder, the U-shaped bracket, the support rod and the bearing seat; the cylinder body end of the hydraulic cylinder is arranged on an aircraft, the piston end is fixed in the middle of the U-shaped support, and the hydraulic cylinder stretches and retracts to drive the U-shaped support to move up and down; the upper ends of two support arms of the U-shaped support are respectively and rotatably connected with the upper ends of two support rods to form two rotating pairs, and the lower ends of the two support rods are respectively and rotatably connected with support lugs on two bearing seats to form two rotating pairs; the two bearing seats are arranged on two cabin doors of an abdominal side-by-side opening door of the underwater unmanned vehicle; the mechanism has the characteristics of good assembly, compact spatial arrangement, simple and reliable structure and the like, can be adjusted and assembled on site, and can timely and stably complete the opening and closing of the cabin door.

Description

Cabin door opening and closing mechanism of underwater unmanned vehicle

Technical Field

The utility model relates to the technical field of underwater unmanned aircrafts, in particular to a cabin door opening and closing mechanism of an underwater unmanned aircraft.

Background

The underwater unmanned vehicle is an unmanned submersible vehicle which does not depend on power supply of a mother ship, is remotely or autonomously controlled, can be recovered and repeatedly used, and can be propelled to sail or glide underwater for a long time. The development and development of the underwater unmanned vehicle have important significance for developing and utilizing ocean resources and arranging military strategies in China.

The large underwater unmanned aircraft usually undertakes the task of opening the cabin to put load, for the long strip-shaped split cabin door, a plurality of actuating mechanisms are usually installed on the cabin door in parallel to act, the machining precision and form and position tolerance of the long strip-shaped cabin door are difficult to control, the parallel installation of the actuating mechanisms is difficult to ensure the assembly in place, and the mechanism movement interference and even the damage to the cabin door are often caused. Considering the danger and the importance of the load, it is necessary to design an actuating mechanism which has simple and reliable structure, can be adjusted and assembled on site and can timely and stably complete the opening and closing functions of the cabin door.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a hatch opening and closing mechanism of an underwater unmanned vehicle, which has the characteristics of good assembly, compact spatial arrangement, simple and reliable structure and the like, can be adjusted and assembled on site, and can timely and stably complete the opening and closing of a hatch.

The technical scheme of the utility model is as follows: an underwater unmanned vehicle hatch opening and closing mechanism comprising: the hydraulic cylinder, the U-shaped bracket, the supporting rod and the bearing seat are arranged on the support;

the cylinder body end of the hydraulic cylinder is arranged on an aircraft, the piston end is fixed in the middle of the U-shaped support, and the hydraulic cylinder stretches and retracts to drive the U-shaped support to move up and down;

the upper ends of two support arms of the U-shaped support are respectively and rotatably connected with the upper ends of two support rods to form two rotating pairs, and the lower ends of the two support rods are respectively and rotatably connected with support lugs on two bearing blocks to form two rotating pairs;

the two bearing seats are arranged on two hatches of an abdominal side-by-side split door of the underwater unmanned vehicle.

Preferably, a cotter pin is mounted at the end of the rotating shaft of each rotating pair.

Preferably, a nylon washer is mounted between each cotter pin and the U-shaped bracket.

Preferably, a mounting gasket is mounted between each bearing seat and the corresponding hatch door.

Preferably, the thickness of the mounting pad is adjustable.

Preferably, a kidney-shaped hole is processed at the bottom of the bearing seat and used for adjusting the position of the bearing seat when the bearing seat is assembled with the cabin door.

Preferably, grease grooves are machined in all four rotating pairs.

Preferably, the arm length of each arm of the U-shaped support and the distance between the mounting holes on the two arms are adjustable.

Has the advantages that:

1. the cabin door opening and closing mechanism of the underwater unmanned vehicle has the advantages of compact spatial arrangement, convenience in assembly and adjustment, simple and reliable structure, and convenience in on-site adjustment and assembly, and timely and stably completes the opening and closing of the cabin door.

2. According to the utility model, the cotter pin is designed at the tail end of the rotating shaft of each rotating pair, so that the rotating shaft can be effectively prevented from falling off.

3. According to the utility model, the nylon gasket arranged between each cotter pin and the U-shaped bracket can separate the cotter pin from the U-shaped bracket, so that the cotter pin is prevented from wearing the U-shaped bracket.

4. According to the utility model, the mounting gasket arranged between each bearing seat and the corresponding cabin door can separate the bearing seats from the cabin doors, so that the bearing seats are prevented from wearing the cabin doors.

5. The waist-shaped hole processed at the bottom of the bearing seat facilitates the adjustment during the assembly of the mechanism, and avoids the problem of poor assembly caused by processing errors.

6. Grease grooves are formed in the four rotating pairs, so that the mechanism is flexible in action and small in friction force.

7. The arm length of the support arm of the U-shaped support and the distance between the two mounting holes on the support arm are adjusted and designed by comprehensively considering the requirements of small hydraulic cylinder stroke and large opening and closing angle of the cabin door, so that the whole mechanism can be compactly and reasonably arranged in space.

Drawings

Fig. 1 is a schematic structural view of the hatch opening and closing mechanism of the present invention.

FIG. 2 is a right sectional view of the hatch opening and closing mechanism of the present invention.

Fig. 3 is a schematic structural view of the bearing seat of the present invention.

The hydraulic support comprises a hydraulic cylinder 1, a nylon gasket 2, a U-shaped support 3, a support rod 4, a bearing seat 5, a mounting gasket 6, a support rotating shaft 7, a waist-shaped hole 8 and a grease groove 9.

Detailed Description

The utility model is described in detail below by way of example with reference to the accompanying drawings.

The embodiment provides an underwater unmanned vehicle cabin door opening and closing mechanism which has the characteristics of good assembly, compact spatial arrangement, simple and reliable structure and the like, can be adjusted and assembled on site, and can timely and stably complete the opening and closing of a cabin door.

As shown in fig. 1 and 2, the hatch opening and closing mechanism of the underwater unmanned vehicle comprises: the device comprises a hydraulic cylinder 1, a nylon gasket 2, a U-shaped bracket 3, a support rod 4, a bearing seat 5, a mounting gasket 6 and a support rotating shaft 7;

the cylinder body end of the hydraulic cylinder 1 is arranged on a navigation device through a flange, the piston end is fixedly connected with the middle part of the U-shaped support 3 through standard parts such as nuts, and when the hydraulic cylinder 1 stretches, the U-shaped support 3 can move up and down along with the hydraulic cylinder;

the upper ends of two support arms of the U-shaped bracket 3 are respectively connected with the upper ends of two support rods 4 through a support rotating shaft 7 in a rotating way to form two rotating pairs, and each support rod 4 has a degree of freedom rotating around the corresponding support rotating shaft 7; the lower ends of the two support rods 4 are respectively connected with the lugs on the two bearing seats 5 through the support rotating shafts 7 in a rotating mode to form two rotating pairs, and each bearing seat 5 has a degree of freedom rotating around the corresponding support rotating shaft 7; in order to prevent the support rotating shaft 7 from falling off, a cotter pin is arranged at the tail end of the support rotating shaft, and the cotter pin is separated from the U-shaped bracket 3 by a nylon gasket 2;

the two bearing seats 5 are installed on two hatches of an abdominal side-by-side split door of the underwater unmanned vehicle through standard parts, each bearing seat 5 is separated from the corresponding hatch door through a mounting gasket 6, and the thickness of each mounting gasket 6 is adjustable so as to ensure that the bearing seats 5 and the hatches are assembled in place.

In this embodiment, as shown in fig. 3, a kidney-shaped hole 8 is processed at the bottom of the bearing seat 5, so that the position of the bearing seat 5 can be conveniently adjusted during assembly with the cabin door, and the problem that the assembly is not in place due to processing errors is avoided.

In this embodiment, grease grooves 9 are processed at the positions of four revolute pairs formed by the U-shaped support 3, the support rod 4 and the bearing seat 5, so that the mechanism is flexible in action and small in friction force.

In this embodiment, the arm length of each support arm of the U-shaped bracket 3 and the distance between the mounting holes on the two support arms can be adjusted and designed to meet the requirements of small stroke of the hydraulic cylinder 1 and large opening and closing angle of the cabin door, so that the space arrangement of the whole cabin door opening and closing mechanism is compact and reasonable.

The working principle of the hatch door opening and closing mechanism of the underwater unmanned vehicle is as follows: when a piston rod of the hydraulic cylinder 1 extends out, the U-shaped support 3 is pushed to move downwards, and the two support rods 4 are driven to act on two cabin doors of the underwater unmanned vehicle together to enable the two cabin doors to be opened relatively; conversely, when the piston rods of the hydraulic cylinders 1 are retracted, the two hatches are relatively closed.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater unmanned vehicle hatch door opening and closing mechanism is characterized by comprising: the device comprises a hydraulic cylinder (1), a U-shaped bracket (3), a support rod (4) and a bearing seat (5);

the cylinder body end of the hydraulic cylinder (1) is arranged on a navigation device, the piston end is fixed in the middle of the U-shaped support (3), and the hydraulic cylinder (1) stretches and retracts to drive the U-shaped support (3) to move up and down;

the upper ends of two support arms of the U-shaped support (3) are respectively rotatably connected with the upper ends of two support rods (4) to form two rotating pairs, and the lower ends of the two support rods (4) are respectively rotatably connected with support lugs on two bearing seats (5) to form two rotating pairs;

the two bearing seats (5) are arranged on two hatches of the belly split door of the underwater unmanned vehicle.

2. The underwater unmanned vehicle door opening and closing mechanism as claimed in claim 1, wherein a cotter pin is installed at the end of the rotation shaft of each rotation pair.

3. The underwater unmanned vehicle door opening and closing mechanism according to claim 2, characterized in that a nylon washer (2) is installed between each cotter pin and the U-shaped bracket (3).

4. The underwater unmanned vehicle door opening and closing mechanism according to claim 1, wherein a mounting gasket (6) is installed between each bearing seat (5) and the corresponding door.

5. The underwater unmanned vehicle door opening and closing mechanism according to claim 4, wherein the thickness of the mounting gasket (6) is adjustable.

6. The underwater unmanned vehicle door opening and closing mechanism as claimed in any one of claims 1 to 5, wherein a kidney-shaped hole (8) is formed at the bottom of the bearing seat (5) for adjusting the position when the bearing seat (5) is assembled with the door.

7. The underwater unmanned vehicle door opening and closing mechanism according to any one of claims 1-5, wherein grease grooves (9) are machined in all four revolute pairs.

8. The underwater unmanned vehicle door opening and closing mechanism according to any one of claims 1-5, wherein the length of each arm of the U-shaped bracket (3) and the distance between the mounting holes on the two arms are adjustable.