Double-cylinder driving cabin door suitable for underwater vehicle

Abstract

The invention belongs to the technical field of underwater vehicles, and particularly relates to a cabin door of an underwater vehicle. A double-cylinder driving cabin door suitable for an underwater vehicle comprises a right cabin door body, a left cabin door body, a cabin door frame, a sliding groove plate, a driving roller, a driven roller, a first-stage hydraulic cylinder and a second-stage hydraulic cylinder. Left and right groups of driving rollers and driven rollers are symmetrically arranged on the bow side and the stern side of the cabin door frame, and each driving roller is connected with the action end of one secondary hydraulic cylinder. A sliding groove is formed in the sliding groove plate. The driving roller and the driven roller move along the sliding chute; the first-stage hydraulic cylinder and the second-stage hydraulic cylinder are hinged end to end to form a revolute pair; bow and stern sides of the right cabin door and the left cabin door are respectively connected with the driving rollers and the driven rollers of the corresponding groups. A double-cylinder linkage driving structural form is adopted, the mechanism can adapt to the movement track of the plug-pull type cabin door, meanwhile, the response speed is high, movement is stable, control is easy, and the movement stability of the cabin door of the unmanned underwater vehicle is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater submersibles, and in particular relates to a hatch of an underwater vehicle. Background Art

[0002] With the development of science and technology and the needs of marine development and military applications, the operating loads of underwater vehicles have become more diverse. As an important component of underwater unmanned vehicles, the hatch system not only protects the operating load of the vehicle, but also provides sufficient space for the release of the load. However, traditional hatches are affected by the movement trajectory of the hatches, and their release space is limited, which leads to restrictions on the load size of the vehicle. In addition, most traditional hatches use motor transmission to open and close the hatches, which has the disadvantages of slow response speed and unstable process. Therefore, exploring a hatch system with fast response speed and large opening and closing space is an important development direction for the hatches of underwater unmanned vehicles. Summary of the invention

[0003] The purpose of the present invention is to provide a double-cylinder driven cabin door suitable for underwater vehicles in view of the deficiencies in the prior art.

[0004] The technical solution of the present invention is: a double-cylinder driven cabin door suitable for underwater vehicles, comprising: a right cabin door, a left cabin door, a cabin door frame, a slide plate, an active roller, a passive roller, a primary hydraulic cylinder, and a secondary hydraulic cylinder.

[0005] Two groups of active rollers and passive rollers are symmetrically arranged on the bow and stern sides of the door frame, and each active roller is connected to the action end of a secondary hydraulic cylinder.

[0006] A slide groove is arranged on the slide groove plate; the active roller and the passive roller move along the slide groove.

[0007] The first-stage hydraulic cylinder and the second-stage hydraulic cylinder are hinged end to end to form a revolute pair.

[0008] The bow and stern sides of the right door and the left door are respectively connected with the active rollers and passive rollers of the corresponding groups.

[0009] When the door is in the closed state, the first and second hydraulic cylinders are in the extended state. When the door is opened, the first and second hydraulic cylinders act according to the set program, and drive the right and left doors to move along the track of the slide plate through the active roller to complete the entire door opening process.

[0010] On the basis of the above scheme, in order to increase the opening space of the door, the slide groove on the slide plate is divided into a straight segment and an arc segment. When the door opening action is executed, the first-level hydraulic cylinder is first retracted to a certain distance, at which time the active roller will drive the door to translate outward along the straight track of the slide groove of the slide groove plate for an appropriate distance; then the first-level hydraulic cylinder and the second-level hydraulic cylinder are retracted at a specified rate, at which time the active roller will drive the door to rotate outward along the arc track of the slide groove of the slide groove plate. When the first-level hydraulic cylinder and the second-level hydraulic cylinder have completed their strokes, the entire door opening process is completed.

[0011] In the above solution, specifically, the door frame is conformal to the aircraft body.

[0012] In the above solution, specifically, the first-stage hydraulic cylinder is fixed on the aircraft body.

[0013] In the above solution, specifically, the slide plate is fixed on the aircraft body.

[0014] Beneficial effects:

[0015] (1) The present invention adopts a dual-cylinder linkage drive structure, in which the first-stage hydraulic cylinder and the second-stage hydraulic cylinder are hinged end to end to form a rotating pair to adapt to the movement trajectory of the Sierra hatch.

[0016] (2) The present invention has fast response speed, smooth movement, and simple control, which greatly enhances the stability of the movement of the underwater unmanned vehicle door.

[0017] (3) The slide track of the slide plate in the present invention is a combination of a straight line and an arc, which can increase the opening space of the hatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention installed on an aircraft;

[0020] Figure 3 It is a schematic diagram of the structure of the right door moving along a straight line segment in the present invention;

[0021] Figure 4 It is a schematic diagram of the structure after the hatch is fully opened in the present invention.

[0022] In the figure: 1-right door; 2-left door; 3-vehicle body; 4-active roller; 5-passive roller; 6-door frame; 7-slide plate; 8-secondary hydraulic cylinder; 9-primary hydraulic cylinder. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] See attached Figure 1 A double-cylinder driven cabin door suitable for an underwater vehicle comprises: a right cabin door 1, a left cabin door 2, a cabin door frame 6, a slide plate 7, an active roller 4, a passive roller 5, a primary hydraulic cylinder 9, and a secondary hydraulic cylinder 8.

[0025] See attached Figure 2 ,

[0026] The door frame 6 is conformal to the aircraft body 3 , and two groups of active rollers 4 and passive rollers 5 are symmetrically arranged on the bow and stern sides of the door frame 6 , and each active roller 4 is connected to the action end of a secondary hydraulic cylinder 8 .

[0027] The slide plate 7 is fixed on the aircraft body 3; the slide plate 7 is provided with a slide groove, and in order to increase the opening space of the cabin door, the slide groove on the slide plate 7 is divided into a straight line segment and an arc segment. The active roller 4 and the passive roller 5 move along the slide groove.

[0028] The first-stage hydraulic cylinder 9 is fixed on the aircraft body 3, and there are 4 of them in total; the first-stage hydraulic cylinder 9 and the second-stage hydraulic cylinder 8 are hinged head-to-tail to form a revolute pair.

[0029] The bow and stern sides of the right door 1 and the left door 2 are respectively connected to the driving roller 4 and the passive roller 5 of the corresponding group.

[0030] See attached Figure 3 , 4 When the door opening action is executed, the first hydraulic cylinder 9 is first retracted to a certain distance, at which time the active roller 4 drives the door to translate outward along the linear track of the slide groove of the slide groove plate 7 for an appropriate distance; then the first hydraulic cylinder 9 and the second hydraulic cylinder 8 are retracted at a specified rate, at which time the active roller 4 drives the door to rotate outward along the arc track of the slide groove of the slide groove plate 7. When the first hydraulic cylinder 9 and the second hydraulic cylinder 8 complete their strokes, the entire door opening process is completed.

[0031] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A double-cylinder driven hatch door suitable for an underwater vehicle, comprising: The right door (1) and the left door (2) are characterized by further comprising: a door frame (6), a slide plate (7), an active roller (4), a passive roller (5), a primary hydraulic cylinder (9), and a secondary hydraulic cylinder (8); Two left and right groups of the active rollers (4) and the passive rollers (5) are symmetrically arranged on both the bow and stern sides of the door frame (6), and each of the active rollers (4) is connected to the action end of one of the secondary hydraulic cylinders (8); The slide plate (7) is provided with a slide groove; the active roller (4) and the passive roller (5) move along the slide groove; The first-stage hydraulic cylinder (9) and the second-stage hydraulic cylinder (8) are hinged end to end to form a revolute pair; The bow and stern sides of the right door (1) and the left door (2) are respectively connected to the driving roller (4) and the passive roller (5) of the corresponding group.

2. A double-cylinder driven hatch door suitable for underwater vehicles as claimed in claim 1, characterized in that: The slide groove on the slide groove plate (7) is divided into a straight line segment and an arc segment.

3. A double-cylinder driven hatch door suitable for underwater vehicles as claimed in claim 1 or 2, characterized in that: The door frame (6) is conformal to the aircraft body (3).

4. A double-cylinder driven hatch door suitable for underwater vehicles as claimed in claim 3, characterized in that: The primary hydraulic cylinder (9) is fixed on the aircraft body (3).

5. A double-cylinder driven hatch door suitable for underwater vehicles as claimed in claim 3, characterized in that: The slide plate (7) is fixed on the aircraft body (3).

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