Ship stern axial sealing adjusting device

Abstract

The utility model discloses a ship stern axial sealing adjusting device, which relates to the technical field of ships, and comprises a sleeve, an oil seal mechanism is arranged in the sleeve, a plurality of oil pressing blocks are arranged in the oil seal mechanism, a sealing cover is fixedly arranged at the top of the sleeve, and the oil pressing blocks are arranged on the sealing cover. According to the axial sealing adjusting device for the ship stern, the oil sealing mechanism is arranged, the whole device rotates along with the stern shaft, when the iron core rotates, the oil pressing block is thrown out of the sliding groove and extrudes the lubricating oil in the oil cavity, the oil sealing mechanism rotates along with the stern shaft, and therefore the oil sealing effect is achieved. Lubricating oil is forced to fill a gap between the tail shaft and the cover device, the oil sealing function is achieved, and water can be prevented from entering from the tail shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a ship stern axial sealing adjustment device. Background Art

[0002] A ship or vessel refers to a means of transportation that can move on water by utilizing the buoyancy of water and relying on a series of power such as manpower, sails, and engines. Sealing devices are used on some large ships. There are different types of stern shaft sealing devices, among which the most common ones are rubber ring type sealing types or end face sealing types. Users can choose them according to the usage. The existing sealing devices have poor sealing performance for the stern shaft of the ship and are prone to loosening, which brings certain effects during use.

[0003] Patent No. CN216306717U discloses a lubricating stern shaft sealing device that is convenient for oiling. The structure includes a base, a shell is provided at the upper end of the base, and uniformly distributed elastic clamps are provided in the middle of the top of the base. The surfaces of the elastic clamps are provided with uniformly distributed through holes, a fixing nut is provided at the upper end of the shell, and uniformly distributed oiling pipes are provided at the bottom of the base. The fixing nut and the elastic clamp are provided to facilitate clamping and fixing the stern shaft of the ship to prevent loosening during use; the through holes, grooves and oiling pipes are provided to facilitate oiling the stern shaft to prevent the stern shaft from getting stuck after long-term use; the first sealing ring and the second sealing ring are provided to facilitate increasing the sealing performance of the stern shaft sealing device, improve the utilization rate, and have strong practicality;

[0004] The lubricating stern shaft sealing device that is easy to oil in this patent seals the stern shaft through a sealing ring, and the sealing effect is relatively general. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a ship stern axial sealing adjustment device, which solves the problem of poor sealing performance of the stern shaft.

[0006] To achieve the above purpose, the utility model is implemented through the following technical scheme: a ship stern axial sealing adjustment device, including a sleeve, an oil sealing mechanism is installed in the sleeve, a plurality of oil pressure blocks are installed in the oil sealing mechanism, a sealing cover is fixedly installed on the top of the sleeve, and when the oil sealing mechanism rotates with the stern shaft, the oil pressure blocks press the lubricating oil filled in the sleeve toward the stern shaft to achieve oil sealing.

[0007] Preferably, the sleeve comprises a cylinder body, an oil cavity is arranged in the cylinder body, a through hole is opened on the bottom wall of the oil cavity, and a plurality of annular evenly distributed mounting holes are arranged on the top of the cylinder body.

[0008] Preferably, the oil sealing mechanism includes an iron core, which is cylindrical, with a second through hole being provided on the top of the iron core, and a plurality of annular evenly distributed sliding grooves being provided on the side walls of the iron core, in which the oil pressure block is slidably installed, and a plurality of annular evenly distributed mounting holes are provided on the top of the iron core.

[0009] Preferably, the sealing cover includes a cover body, a plurality of annular evenly distributed mounting holes three and four are provided on the top of the cover body, a through hole three is provided on the top of the cover body, a key slot is provided in the through hole three, a fuel nozzle is fixedly installed on the top of the cover body, the cover body and the iron core are fixedly connected by screws inserted into the mounting holes three and two, and the cover body and the cylinder body are fixedly connected by screws inserted into the mounting holes four and one.

[0010] Preferably, the through hole one, through hole two and through hole three have the same inner diameter and are coaxially arranged.

[0011] Preferably, the thickness of the iron core is smaller than the depth of the oil cavity.

[0012] Beneficial Effects

[0013] The utility model provides a ship stern axial seal adjustment device. Compared with the prior art, it has the following advantages:

[0014] Beneficial effects:

[0015] 1. The ship's stern axial sealing adjustment device is equipped with an oil sealing mechanism. The entire device rotates together with the stern shaft. When the iron core rotates, the oil pressure block is thrown out from the slide groove and squeezes the lubricating oil in the oil chamber, forcing the lubricating oil to fill the gap between the stern shaft and the cover device, thereby realizing the oil sealing function and preventing moisture from entering from the stern shaft.

[0016] 2. The ship stern axial sealing adjustment device has a simple structure and adopts a new sealing method. Compared with the traditional one, the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded view of the utility model;

[0018] Figure 2 This is a schematic diagram of the sleeve structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the oil seal structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the sealing cover structure of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the utility model.

[0022] In the figure: 1. sleeve; 11. cylinder; 12. mounting hole one; 13. oil chamber; 14. through hole one; 2. oil seal mechanism; 21. iron core; 22. through hole two; 23. slide groove; 24. mounting hole two; 3. oil pressure block; 4. sealing cover; 41. cover body; 42. mounting hole three; 43. mounting hole four; 44. oil nozzle; 45. through hole three; 46. keyway. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: a ship stern axial sealing adjustment device, including a sleeve 1, an oil sealing mechanism 2 is installed in the sleeve 1, a plurality of oil pressure blocks 3 are installed in the oil sealing mechanism 2, and a sealing cover 4 is fixedly installed on the top of the sleeve 1. When the oil sealing mechanism 2 rotates with the stern shaft, the oil pressure blocks 3 press the lubricating oil filled in the sleeve 1 toward the stern shaft to achieve oil sealing.

[0025] Specifically, the sleeve 1 includes a cylinder 11, an oil chamber 13 is provided in the cylinder 11, a through hole 14 is provided on the bottom wall of the oil chamber 13, a plurality of mounting holes 12 are evenly distributed in an annular shape are provided on the top of the cylinder 11, the oil seal mechanism 2 includes an iron core 21, the iron core 21 is cylindrical, a through hole 22 is provided on the top of the iron core 21, a plurality of chute 23 evenly distributed in an annular shape is provided on the side wall of the iron core 21, the oil pressure block 3 is slidably installed in the chute 23, and a plurality of mounting holes 22 evenly distributed in an annular shape are provided on the top of the iron core 21 4. The sealing cover 4 includes a cover body 41. A plurality of annular evenly distributed mounting holes 3 42 and mounting holes 43 are provided on the top of the cover body 41. A through hole 3 45 is provided on the top of the cover body 41. A key groove 46 is provided in the through hole 3 45. A fuel nozzle 44 is fixedly installed on the top of the cover body 41. The cover body 41 and the iron core 21 are fixedly connected by screws inserted into the mounting holes 3 42 and the mounting holes 24. The cover body 41 and the cylinder body 11 are fixedly connected by screws inserted into the mounting holes 43 and the mounting holes 12.

[0026] Through hole one 14, through hole two 22 and through hole three 45 have the same inner diameter and are coaxially arranged. The thickness of the iron core 21 is less than the depth of the oil chamber 13, so that the lubricating oil in the oil chamber 13 can fill the gap between through hole one 14 and the stern shaft to achieve the oil sealing function.

[0027] During operation, the stern shaft drives the sealing cover 4 to rotate through the key connection, and then drives the entire device to rotate together with the stern shaft. When the iron core 21 rotates, the oil pressure block 3 is thrown out from the slide groove 23 and squeezes the lubricating oil in the oil chamber 13, forcing the lubricating oil to fill the gap between the stern shaft and the cover device, thereby realizing the oil sealing function and preventing moisture from entering from the stern shaft.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A ship stern axial seal adjustment device, comprising a sleeve (1), characterized in that: An oil sealing mechanism (2) is installed in the sleeve (1), and a plurality of oil pressure blocks (3) are installed in the oil sealing mechanism (2). A sealing cover (4) is fixedly installed on the top of the sleeve (1), and when the oil sealing mechanism (2) rotates with the stern shaft, the oil pressure blocks (3) press the lubricating oil filled in the sleeve (1) toward the stern shaft to achieve oil sealing.

2. A ship stern axial seal adjustment device according to claim 1, characterized in that: The sleeve (1) comprises a cylinder (11), an oil chamber (13) is arranged in the cylinder (11), a through hole (14) is opened on the bottom wall of the oil chamber (13), and a plurality of mounting holes (12) evenly distributed in an annular shape are arranged on the top of the cylinder (11).

3. A ship stern axial seal adjustment device according to claim 2, characterized in that: The oil seal mechanism (2) comprises an iron core (21), the iron core (21) is cylindrical, a second through hole (22) is provided at the top of the iron core (21), a plurality of evenly distributed annular sliding grooves (23) are provided at the side wall of the iron core (21), the oil pressure block (3) is slidably mounted in the sliding grooves (23), and a plurality of evenly distributed annular mounting holes (24) are provided at the top of the iron core (21).

4. A ship stern axial seal adjustment device according to claim 3, characterized in that: The sealing cover (4) comprises a cover body (41), a plurality of mounting holes three (42) and mounting holes four (43) evenly distributed in an annular pattern are provided on the top of the cover body (41), a through hole three (45) is provided on the top of the cover body (41), a keyway (46) is provided in the through hole three (45), a refueling nozzle (44) is fixedly installed on the top of the cover body (41), the cover body (41) and the iron core (21) are fixedly connected by screws inserted into the mounting holes three (42) and the mounting holes two (24), and the cover body (41) and the cylinder body (11) are fixedly connected by screws inserted into the mounting holes four (43) and the mounting holes one (12).

5. A ship stern axial seal adjustment device according to claim 4, characterized in that: The through hole one (14), the through hole two (22) and the through hole three (45) have the same inner diameter and are coaxially arranged.

6. A ship stern axial seal adjustment device according to claim 5, characterized in that: The thickness of the iron core (21) is smaller than the depth of the oil chamber (13).

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