Sealing structure for rotating shaft of marine lateral propeller

Abstract

The utility model provides a rotating shaft sealing structure of a marine lateral propeller, and relates to the field of propellers. The marine lateral propeller rotating shaft sealing structure comprises a shaft clamping seat, a shaft storage pipe is slidably connected to the inner surface of the shaft clamping seat, a bottom sealing plate is connected to the outer surface of one side of the shaft storage pipe, and an inner probe rod is connected to the outer surface of the side, close to the shaft storage pipe, of the bottom sealing plate. The shaft storage pipe enables the contact plate to slide towards the bottom sealing plate, so that the contact plate drives the extension plate to slide inwards, the extension plate drives the arc extending plate to slide, and the arc extending plate drives the anti-rotation plate to slide into the fixing pipe; and then the anti-rotation plate sliding out of the fixed pipe is locked so as to fix the shaft storage pipe on the shaft clamping seat, so that the purposes of fixing the rotating shaft and isolating the rotating shaft from the external environment are achieved, and a better sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thrusters, in particular to a sealing structure for the rotating shaft of a marine side thruster, which is used for sealing the rotating shaft of the marine side thruster. Background Technique

[0002] A thruster is a device that converts other forms of energy (such as electrical energy) into mechanical energy. It generates thrust by rotating blades or jetting air or water, and can be used to drive a vehicle forward or as a power source for other devices such as a generator. For example, in a marine side thruster, it is arranged on the side of the hull to drive the hull forward.

[0003] Among them, the rotating shaft is one of the important components of the thruster. Its stability needs to be ensured during the storage, transportation or use of the rotating shaft. If the fixing of the rotating shaft is not firm enough, it may cause the rotating shaft to vibrate or shift (which may lead to collision and contact with other components), resulting in damage to the rotating shaft. At the same time, if the sealing of the rotating shaft is not well preserved, it may also cause some components of the rotating shaft to corrode when contacting the external environment, affecting its function as a marine side thruster. Content of the Utility Model

[0004] Technical Problem to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a sealing structure for the rotating shaft of a marine side thruster, which solves the problems raised in the technical background.

[0006] Technical Solution

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions: A rotational shaft sealing structure for a marine side thruster, including a shaft clamping seat. The inner surface of the shaft clamping seat is slidably connected with a shaft storage tube. One side outer surface of the shaft storage tube is fixedly connected with a sealing base plate. The outer surface of the sealing base plate close to the shaft storage tube is fixedly connected with an inner probe rod. The outer circumferential surface of the inner probe rod is slidably connected with an inner pressure sleeve. The outer surface of the inner pressure sleeve away from the sealing base plate is fixedly connected with a contact pressure plate. The outer circumferential surface of the contact pressure plate is slidably connected with the inner wall of the shaft storage tube. The outer circumferential surface of the contact pressure plate is fixedly connected with an extension plate. The outer surface of the extension plate is slidably connected with the inner wall of the shaft storage tube. The outer surface of the extension plate away from the shaft storage tube is fixedly connected with a semi-arc frame. The outer arc surface of the semi-arc frame is fixedly connected with an auxiliary rotating sleeve. The inner surface of the auxiliary rotating sleeve is fixedly connected with a rotating shaft rod. The outer circumferential surface of the rotating shaft rod is rotatably connected with an outer transmission sleeve. The outer surface of the outer transmission sleeve is fixedly connected with a sealing ring. The inner surface of the sealing ring is slidably connected with a single valve tube. The outer surface of the semi-arc frame away from the sealing ring is fixedly connected with an extended arc plate. The outer surface of the extended arc plate close to the shaft clamping seat is slidably connected with the shaft storage tube. The outer surface of the extended arc plate away from the semi-arc frame is fixedly connected with a downward probe arc. The inner arc surface of the downward probe arc close to the shaft clamping seat is slidably connected with the shaft storage tube. The outer surface of the downward probe arc away from the extended arc plate is fixedly connected with an anti-rotation plate. The outer surface of the anti-rotation plate is slidably connected with a fixed tube. The outer surface of the fixed tube close to the shaft storage tube is fixedly connected with the shaft clamping seat.

[0008] As a further optimization, the shaft clamping seat is a rectangular block, and an arc-shaped groove is provided on the upper surface of the rectangular block. The inner surface of the arc-shaped groove is slidably connected with the shaft storage tube.

[0009] As a further optimization, the shaft storage tube is a circular tube. The outer circumferential surface of the circular tube is slidably connected with the shaft clamping seat. One end of the circular tube is fixedly connected with a sealing base plate. The inner surface of the circular tube is slidably connected with a contact pressure plate. Two rectangular grooves are provided on the inner wall of the circular tube. The inner surface of the rectangular grooves is slidably connected with an extension plate. Two square grooves communicating with the rectangular grooves are provided at one end of the circular tube away from the sealing base plate.

[0010] As a further optimization, the semi-arc frame is an arc-shaped block. The inner diameter of the arc-shaped block is the same as the outer diameter of the shaft storage tube. Two square blocks are fixedly connected to the inner arc surface of the arc-shaped block. The length, width and height of the square blocks are the same as those of the square grooves of the shaft storage tube. The outer arc surface of the arc-shaped block is fixedly connected with an auxiliary rotating sleeve. The outer surface of the arc-shaped block away from the sealing ring is fixedly connected with an extended arc plate.

[0011] As a further optimization, the single valve tube is a rubber tube. The outer diameter of the rubber tube is the same as the inner diameter of the shaft storage tube. The outer circumferential surface of the rubber tube is slidably connected with the sealing ring. A one-way valve leading from the inside of the shaft storage tube to the outside of the device is provided on the inner surface of the rubber tube.

[0012] As a further optimization, the downward probe arc is an arc-shaped block. The outer surface of the arc-shaped block close to the semi-arc frame is fixedly connected with an extended arc plate. A square column is fixedly connected to the lower surface of the arc-shaped block. The outer surface of the square column away from the semi-arc frame is fixedly connected with an anti-rotation plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By pushing the rotating shaft into the shaft storage tube, the shaft storage tube slides the contact pressure plate towards the sealing base plate, so that the contact pressure plate drives the extension plate to slide inwards, so that the extension plate drives the arc extension plate to slide, so that the arc extension plate drives the anti-rotation plate to slide into the fixed tube, and then locks the anti-rotation plate that slides out of the fixed tube to fix the shaft storage tube on the shaft clamping seat, achieving the purpose of fixing the rotating shaft sealing device and solving the problem that excessive vibration and shaking may cause damage to the sealing shaft.

[0015] 2. By rotating the sealing ring to align the opening of the sealing ring with the opening of the shaft storage tube, and then pushing and sliding the single-valve tube into the shaft storage tube, the gas in the shaft storage tube is extracted through the opening of the single-valve tube and the one-way valve, achieving the purpose of making the environment of the rotating shaft as much in a vacuum as possible and solving the problem that the external environment may have a certain impact on the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the downward arc structure of the utility model;

[0017] Figure 2 is a schematic diagram of the single-valve tube structure of the utility model;

[0018] Figure 3 is a schematic diagram of the shaft storage tube structure of the utility model;

[0019] Figure 4 is a schematic diagram of the internal pressure sleeve structure of the utility model.

[0020] Among them, the shaft clamping seat 1, the shaft storage tube 2, the sealing base plate 3, the internal probe rod 4, the internal pressure sleeve 5, the contact pressure plate 6, the extension plate 7, the semi-arc frame 8, the auxiliary rotation sleeve 9, the rotating shaft rod 10, the outer transmission sleeve 11, the sealing ring 12, the single-valve tube 13, the arc extension plate 14, the downward arc 15, the anti-rotation plate 16, the fixed tube 17. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Such as Figures 1 to 4As shown in the figure, a sealing structure for the rotating shaft of a marine side thruster includes a shaft clamping seat 1. The shaft clamping seat 1 is a rectangular block, and an arc-shaped groove is provided on the upper surface of the rectangular block. A shaft storage tube 2 is slidably connected to the inner surface of the arc-shaped groove. The shaft clamping seat 1 is used to fix the main structure of the device to prevent the shaft storage tube 2 from rolling during transportation.

[0023] The inner surface of the shaft clamping seat 1 is slidably connected to a shaft storage tube 2. The shaft storage tube 2 is a circular tube, and the outer circumferential surface of the circular tube is slidably connected to the shaft clamping seat 1. One end of the circular tube is fixedly connected to a sealing bottom plate 3. The inner surface of the circular tube is slidably connected to a contact pressure plate 6. Two rectangular grooves are provided on the inner wall of the circular tube, and an extension plate 7 is slidably connected to the inner surface of the rectangular grooves. Two square grooves communicating with the rectangular grooves are provided at one end of the circular tube away from the sealing bottom plate 3. The shaft storage tube 2 is used to store the rotating shaft to ensure the structural integrity of the rotating shaft.

[0024] A sealing bottom plate 3 is fixedly connected to the outer surface of one side of the shaft storage tube 2. An inner probe rod 4 is fixedly connected to the outer surface of the sealing bottom plate 3 close to the shaft storage tube 2. The outer circumferential surface of the inner probe rod 4 is slidably connected to an inner pressure sleeve 5. A contact pressure plate 6 is fixedly connected to the outer surface of the inner pressure sleeve 5 away from the sealing bottom plate 3. The outer circumferential surface of the contact pressure plate 6 is slidably connected to the inner wall of the shaft storage tube 2. The outer circumferential surface of the contact pressure plate 6 is fixedly connected to an extension plate 7. The outer surface of the extension plate 7 is slidably connected to the inner wall of the shaft storage tube 2. A semi-circular frame 8 is fixedly connected to the outer surface of the extension plate 7 away from the shaft storage tube 2. The semi-circular frame 8 is an arc-shaped block, and the inner diameter of the arc-shaped block is the same as the outer diameter of the shaft storage tube 2. Two square blocks are fixedly connected to the inner arc surface of the arc-shaped block, and the length, width and height of the square blocks are the same as those of the square grooves of the shaft storage tube 2. An auxiliary rotating sleeve 9 is fixedly connected to the outer arc surface of the arc-shaped block. An arc extension plate 14 is fixedly connected to the outer surface of the arc-shaped block away from the sealing ring 12. The semi-circular frame 8 is used to drive other devices to move during its own movement.

[0025] An auxiliary rotating sleeve 9 is fixedly connected to the outer arc surface of the semi-circular frame 8. A rotating shaft rod 10 is fixedly connected to the inner surface of the auxiliary rotating sleeve 9. The outer circumferential surface of the rotating shaft rod 10 is rotatably connected to an outer transmission sleeve 11. A sealing ring 12 is fixedly connected to the outer surface of the outer transmission sleeve 11. A single-valve tube 13 is slidably connected to the inner surface of the sealing ring 12. The single-valve tube 13 is a rubber tube, and the outer diameter of the rubber tube is the same as the inner diameter of the shaft storage tube 2. The outer circumferential surface of the rubber tube is slidably connected to the sealing ring 12. A one-way valve leading from the inside of the shaft storage tube 2 to the outside of the device is provided on the inner surface of the rubber tube. The single-valve tube 13 is used to discharge the air in the device to reduce the influence of gas on the rotating shaft.

[0026] On the outer surface of one side of the semi-arc frame 8 away from the closed ring 12, an arc extension plate 14 is fixedly connected. On the outer surface of one side of the arc extension plate 14 close to the card shaft seat 1, a shaft storage tube 2 is slidably connected. On the outer surface of one side of the arc extension plate 14 away from the semi-arc frame 8, a downward-probing arc 15 is fixedly connected. The downward-probing arc 15 is an arc-shaped block. On the outer surface of one side of the arc-shaped block close to the semi-arc frame 8, the arc extension plate 14 is fixedly connected. On the lower surface of the arc-shaped block, a square column is fixedly connected. On the outer surface of one side of the square column away from the semi-arc frame 8, an anti-rotation plate 16 is fixedly connected. While the downward-probing arc 15 is used to fix part of the device, it provides a necessary working environment for part of the device.

[0027] On the inner arc surface of one side of the downward-probing arc 15 close to the card shaft seat 1, the shaft storage tube 2 is slidably connected. On the outer surface of one side of the downward-probing arc 15 away from the arc extension plate 14, the anti-rotation plate 16 is fixedly connected. On the outer surface of the anti-rotation plate 16, a fixed tube 17 is slidably connected. On the outer surface of one side of the fixed tube 17 close to the shaft storage tube 2, the card shaft seat 1 is fixedly connected.

[0028] Working principle: When using the device, just place the rotating shaft into the shaft storage tube 2, and place the shaft storage tube 2 on the card shaft seat 1. Then push the rotating shaft into the shaft storage tube 2, so that the shaft storage tube 2 slides the touch pressure plate 6 towards the sealing bottom plate 3, thereby making the touch pressure plate 6 drive the extension plate 7 to slide inwards, so that the extension plate 7 drives the arc extension plate 14 to slide through the semi-arc frame 8, so that the arc extension plate 14 drives the anti-rotation plate 16 to slide into the fixed tube 17 through the downward-probing arc 15. Then lock the anti-rotation plate 16 that has slid out of the fixed tube 17 to fix the shaft storage tube 2 on the card shaft seat 1. After the rotating shaft is placed into the shaft storage tube 2, rotate the closed ring 12 so that the opening of the closed ring 12 is aligned with the opening of the shaft storage tube 2. Then push and slide the single-valve tube 13 into the shaft storage tube 2, and extract the gas in the shaft storage tube 2 through the opening of the single-valve tube 13 and the one-way valve to reduce the influence of the external environment on the rotating shaft.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft sealing structure for a marine lateral thruster, comprising a shaft holder (1), characterized in that: The inner surface of the shaft holder (1) is slidably connected with a shaft storage tube (2), a bottom sealing plate (3) is provided on the outer surface of one side of the shaft storage tube (2), an inner probe rod (4) is provided on the outer surface of the bottom sealing plate (3) on the side close to the shaft storage tube (2), an inner pressure sleeve (5) is slidably connected to the outer circumference of the inner probe rod (4), a contact pressure plate (6) is provided on the outer surface of the inner pressure sleeve (5) away from the bottom sealing plate (3), the outer circumference of the contact pressure plate (6) is slidably connected with the inner wall of the shaft storage tube (2), an extension plate (7) is provided on the outer circumference of the contact pressure plate (6), the outer surface of the extension plate (7) is slidably connected with the inner wall of the shaft storage tube (2), a semi-arc frame (8) is provided on the outer surface of the semi-arc frame (8), an auxiliary rotating sleeve (9) is provided on the outer surface of the auxiliary rotating sleeve (9), a rotating shaft rod (10) is provided on the inner surface, and the outer circumference of the rotating shaft rod (10) is provided. An outer transmission sleeve (11) is rotatably connected, a sealed ring (12) is provided on the outer surface of the outer transmission sleeve (11), a single valve tube (13) is slidably connected to the inner surface of the sealed ring (12), an arc extension plate (14) is provided on the outer surface of the semi-arc frame (8) away from the sealed ring (12), a shaft storage tube (2) is slidably connected to the outer surface of the arc extension plate (14) on the side close to the shaft clamping seat (1), a lower exploration arc (15) is provided on the outer surface of the arc extension plate (14) away from the semi-arc frame (8), the inner arc surface of the lower exploration arc (15) close to the shaft clamping seat (1) is slidably connected to the shaft storage tube (2), an anti-rotation plate (16) is provided on the outer surface of the lower exploration arc (15) away from the arc extension plate (14), a fixed tube (17) is slidably connected to the outer surface of the anti-rotation plate (16), and a shaft clamping seat (1) is provided on the outer surface of the fixed tube (17) close to the shaft storage tube (2).

2. A marine lateral thruster rotary shaft sealing structure according to claim 1, characterized in that: The shaft clamping seat (1) is a rectangular block, the upper surface of which is provided with an arc-shaped groove, and the inner surface of the arc-shaped groove is slidably connected with a shaft storage tube (2).

3. The rotating shaft sealing structure of a marine lateral thruster according to claim 1, characterized in that: The shaft storage tube (2) is a circular tube, the outer circumferential surface of the circular tube is slidably connected to a shaft clamping seat (1), one end of the circular tube is provided with a bottom sealing plate (3), the inner surface of the circular tube is slidably connected to a contact pressure plate (6), the inner wall of the circular tube is provided with two rectangular grooves, the inner surface of the rectangular groove is slidably connected to an extension plate (7), and the end of the circular tube away from the bottom sealing plate (3) is provided with two square grooves that are mutually connected with the rectangular grooves.

4. The marine lateral thruster rotary shaft sealing structure according to claim 1, characterized in that: The semi-arc frame (8) is an arc block, the inner diameter of the arc block is consistent with the outer diameter of the shaft storage tube (2), two square blocks are arranged on the inner arc surface of the arc block, the length, width and height of the square block are consistent with the length, width and height of the square groove of the shaft storage tube (2), an auxiliary rotating sleeve (9) is arranged on the outer arc surface of the arc block, and an arc extension plate (14) is arranged on the outer surface of the arc block away from the sealing ring (12).

5. The marine lateral thruster rotary shaft sealing structure according to claim 1, characterized in that: The single valve tube (13) is a rubber tube, the outer diameter of which is consistent with the inner diameter of the shaft storage tube (2), a closed ring (12) is slidably connected to the outer circumference of the rubber tube, and a one-way valve is provided on the inner surface of the rubber tube, which leads from the inside of the shaft storage tube (2) to the outside of the device.

6. A marine lateral thruster rotary shaft sealing structure according to claim 1, characterized in that: The lower exploration arc (15) is an arc block, and an arc extension plate (14) is provided on the outer surface of the arc block on the side close to the semi-arc frame (8), and a square column is provided on the lower surface of the arc block, and an anti-rotation plate (16) is provided on the outer surface of the square column on the side away from the semi-arc frame (8).

Images