Sealing device for preventing oil leakage at output end of marine main engine

Abstract

The utility model discloses a marine main engine output end anti-oil-leakage sealing device, which relates to the technical field of marine main engine sealing and comprises a sealing ring, a sealing cover is fixedly mounted on the outer surface of the sealing ring, a sealing assembly is movably mounted on the inner side surface of the sealing ring, and a fixing assembly is fixedly mounted on the top surface of the sealing cover. The fixing assembly comprises a fixing bolt, and a clamping block is movably installed on the surface of the fixing bolt. According to the sealing ring, the clamping groove is formed in the bottom of the sealing ring body, so that the number of used materials for part production can be effectively reduced, meanwhile, oil absorption cotton can be conveniently installed, anti-skid oil can be adsorbed when leaking, and the omission range of the anti-skid oil can be limited, and due to the fact that the sealing soft strip is arranged on the outer side of the sealing frame, the anti-skid oil can be effectively prevented from leaking. And after the sealing assembly is installed, the joint of the sealing assembly and the sealing ring body can be reinforced and sealed, and the situation that after long-time use, bolts are loosened, and consequently anti-skid oil leaks from gaps is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of ship main engine sealing, in particular to a sealing device for preventing lubricating oil leakage at an output end of a ship main engine. Background Art

[0002] Due to defects in design, manufacturing, installation, etc., the main engine output end shaft seals of some ships have varying degrees of lubricating oil leakage. The problem of lubricating oil leakage at the main engine output end is generally dealt with by adding packing and enlarging the diameter of the oil return hole, but the repair effect is not ideal.

[0003] In the prior art, a Chinese patent document with publication number CN216589933U is proposed to solve the above technical problems. The technical solution disclosed in the patent document is as follows: a new sealing device for preventing lubricating oil leakage at the output end of a ship main engine, comprising a sealing assembly and a main engine flywheel side end cover using the sealing assembly.

[0004] In order to solve the problem of oil leakage at the output end of the main engine, the method of adding packing and enlarging the diameter of the oil return hole is generally adopted, but the repair effect is not ideal. The existing technology adopts the method of setting a sealing component and using it in conjunction with the main engine flywheel side end cover to solve the problem. However, the bolt connection is prone to rust and loosen after long-term use, which leads to gaps between the sealing components and causes the problem of oil leakage. Utility Model Content

[0005] The utility model aims to provide a sealing device for preventing lubricating oil leakage at the output end of a ship main engine, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A sealing device for preventing lubricating oil leakage at the output end of a ship main engine comprises a sealing ring, a sealing cover is fixedly mounted on the outer surface of the sealing ring, a sealing component is movably mounted on the inner side of the sealing ring, and a fixing component is fixedly mounted on the top surface of the sealing cover;

[0008] The fixing assembly includes a fixing bolt, a clamping block is movably installed on the surface of the fixing bolt, and a pressing block is fixedly installed on the lower surface of the clamping block. By installing the pressing block on the lower surface of the clamping block, the sealing strip can be compressed when the clamping block is adjusted on the fixing bolt to fix the sealing frame, thereby improving the tightness of the seal and preventing the sealing strip from being loosely sleeved and having gaps.

[0009] A further improvement of the technical solution of the utility model is that: the sealing ring includes a sealing ring body, a groove is provided on the lower surface of the sealing ring body, and oil-absorbing cotton is movably installed inside the sealing ring body. By providing the groove at the bottom of the sealing ring body, the material used in the production of the component can be effectively reduced, and the installation of the oil-absorbing cotton can be facilitated, so that the anti-skid oil can be adsorbed when it leaks, limiting the scope of its leakage.

[0010] A further improvement of the technical solution of the utility model is that the sealing cover comprises a sealing cover body fixedly mounted on the outer surface of the sealing ring body, a reinforcing arc rod is fixedly mounted on the surface of the sealing cover body, and a mounting ring is fixedly mounted on the side surface of the sealing cover body.

[0011] A further improvement of the technical solution of the utility model is that the sealing assembly includes a sealing frame movably installed on the inner side of the sealing cover body, a connecting hole is provided on the surface of the sealing frame, a bolt hole is provided on the surface of the sealing frame away from the connecting hole, and connecting bolts are movably installed inside the sealing frame. By providing built-in slots, hidden connection installation is facilitated to improve the aesthetics.

[0012] A further improvement of the technical solution of the utility model is that: the fixing bolt is fixedly installed on the top surface of the sealing cover body, and a sealing soft strip is movably installed on the side surface of the sealing frame. By arranging the sealing soft strip on the outer side of the sealing frame, the connection between the sealing assembly and the sealing ring body can be reinforced and sealed after the sealing assembly is installed, thereby preventing the bolts from loosening after long-term use and causing the anti-skid oil to leak from the gap.

[0013] A further improvement of the technical solution of the utility model is that the sealing soft strip, the sealing frame and the sealing cover body are movably connected through fixing bolts, a clamping block and a pressing block.

[0014] A further improvement of the technical solution of the utility model is that: the sealing ring, the sealing cover and the sealing component are each provided with two groups, and the sealing ring and the sealing component are movably connected through a fixed component, and the split setting facilitates segmented production and assembly.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a sealing device for preventing lubricating oil from leaking at the output end of a ship main engine. By providing a card groove at the bottom of a sealing ring body, the material used in component production can be effectively reduced, and the installation of oil-absorbing cotton can be facilitated, so that the anti-slip oil can be adsorbed when it leaks, limiting the scope of leakage.

[0017] The utility model provides a sealing device for preventing slip oil leakage at the output end of a ship main engine. By arranging a sealing soft strip on the outer side of a sealing frame, the connection between the sealing frame and a sealing ring body can be reinforced and sealed after the sealing component is installed, so as to prevent the anti-slip oil from leaking from the gap due to the loosening of the bolts after long-term use.

[0018] The utility model provides a sealing device for preventing lubricating oil leakage at the output end of a ship main engine. By installing a pressing block on the lower surface of a clamping block, the sealing soft strip can be compressed when the clamping block is adjusted on a fixing bolt to fix a sealing frame, thereby improving the tightness of the seal and preventing the sealing soft strip from being loosely sleeved and having gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the sealing ring and sealing cover structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the sealing ring of the utility model;

[0022] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0023] Figure 5 For this utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0024] In the figure: 1. sealing ring; 2. sealing cover; 3. sealing assembly; 4. fixing assembly; 11. sealing ring body; 12. slot; 13. oil-absorbing cotton; 21. sealing cover body; 22. reinforcing arc rod; 23. mounting ring; 31. sealing frame; 32. connecting hole; 33. bolt hole; 34. connecting bolt; 41. fixing bolt; 42. clamping block; 43. pressing block; 44. sealing soft strip. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the embodiments: Example

[0026] like Figure 1-5As shown, the utility model provides a sealing device for preventing lubricating oil leakage at the output end of a ship main engine, comprising a sealing ring 1, a sealing cover 2 is fixedly installed on the outer surface of the sealing ring 1, a sealing component 3 is movably installed on the inner side of the sealing ring 1, a fixing component 4 is fixedly installed on the top surface of the sealing cover 2, the sealing ring 1, the sealing cover 2 and the sealing component 3 are each provided in two groups, and the sealing ring 1 and the sealing component 3 are movably connected through the fixing component 4; the fixing component 4 includes a fixing bolt 41, a clamping block 42 is movably installed on the surface of the fixing bolt 41, and a pressing block 43 is fixedly installed on the lower surface of the clamping block 42. By changing the structure of the sealing ring 1, it is possible to save production materials and increase space for installing oil absorbing materials to prevent leakage. Example

[0027] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the sealing ring 1 includes a sealing ring body 11, a card groove 12 is opened on the lower surface of the sealing ring body 11, and an oil-absorbing cotton 13 is movably installed inside the sealing ring body 11; the sealing cover 2 includes a sealing cover body 21 fixedly installed on the outer surface of the sealing ring body 11, a reinforcing arc rod 22 is fixedly installed on the surface of the sealing cover body 21, and a mounting ring 23 is fixedly installed on the side surface of the sealing cover body 21; the sealing component 3 includes a sealing frame 31 movably installed on the inner side of the sealing cover body 21, a connecting hole 32 is opened on the surface of the sealing frame 31, a bolt hole 33 is opened on the surface of the sealing frame 31 away from the connecting hole 32, and a connecting bolt 34 is movably installed inside the sealing frame 31; by opening the card groove 12 at the bottom of the sealing ring body 11, the material consumption of the component production can be effectively reduced, and the installation of the oil-absorbing cotton 13 can be facilitated, so that the anti-skid oil can be adsorbed when it leaks, limiting the scope of its leakage. Example

[0028] like Figure 1-5 As shown, on the basis of Examples 1-2, the utility model provides a technical solution: preferably, a fixing bolt 41 is fixedly installed on the top surface of the sealing cover body 21, and a sealing soft strip 44 is movably installed on the side surface of the sealing frame 31. The sealing soft strip 44 and the sealing frame 31 and the sealing cover body 21 are movably connected by the fixing bolt 41, the clamping block 42 and the pressing block 43. By arranging the sealing soft strip 44 on the outer side of the sealing frame 31, the connection between the sealing component 3 and the sealing ring body 11 can be reinforced and sealed after the sealing component 3 is installed, so as to prevent the bolts from loosening after long-term use and causing the anti-skid oil to leak from the gap.

[0029] The following is a detailed description of the working principle of the sealing device for preventing lubricating oil leakage at the output end of the ship's main engine.

[0030] like Figure 1-5As shown, when the sealing device is used, it is assembled first, two groups of sealing ring bodies 11 are connected, the sealing frame 31 is placed on the inner side of the sealing ring body 11, and the sealing frame 31 is assembled through the connecting holes 32 and the bolt holes 33 in conjunction with the connecting bolts 34, and the sealing soft strip 44 is placed on the periphery of the sealing frame 31, and the clamping block 42 is adjusted on the fixing bolt 41 to move downward so that the pressing block 43 contacts the sealing soft strip 44 to press it, and then the oil-absorbing cotton 13 is installed in the card groove 12 of the sealing ring body 11, and finally the sealing cover body 21 is installed through the fixing nails in conjunction with the mounting ring 23, so that the sealing device is installed at the output end of the ship's main engine.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine, comprising a sealing ring (1), characterized in that: A sealing cover (2) is fixedly mounted on the outer surface of the sealing ring (1), a sealing component (3) is movably mounted on the inner side surface of the sealing ring (1), and a fixing component (4) is fixedly mounted on the top surface of the sealing cover (2); The fixing assembly (4) comprises a fixing bolt (41), a clamping block (42) is movably mounted on the surface of the fixing bolt (41), and a pressing block (43) is fixedly mounted on the lower surface of the clamping block (42).

2. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 1, characterized in that: The sealing ring (1) comprises a sealing ring body (11), a lower surface of the sealing ring body (11) is provided with a clamping groove (12), and an oil-absorbing cotton (13) is movably installed inside the sealing ring body (11).

3. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 2, characterized in that: The sealing cover (2) comprises a sealing cover body (21) fixedly mounted on the outer surface of the sealing ring body (11), a reinforcing arc rod (22) fixedly mounted on the surface of the sealing cover body (21), and a mounting ring (23) fixedly mounted on the side surface of the sealing cover body (21).

4. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 2, characterized in that: The sealing assembly (3) comprises a sealing frame (31) movably mounted on the inner side of the sealing cover body (21); a connection hole (32) is provided on the surface of the sealing frame (31); a bolt hole (33) is provided on the surface of the sealing frame (31) away from the connection hole (32); and a connection bolt (34) is movably mounted inside the sealing frame (31).

5. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 4, characterized in that: The fixing bolt (41) is fixedly mounted on the top surface of the sealing cover body (21), and a sealing soft strip (44) is movably mounted on the side surface of the sealing frame (31).

6. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 5, characterized in that: The sealing soft strip (44), the sealing frame (31) and the sealing cover body (21) are movably connected via a fixing bolt (41), a clamping block (42) and a pressing block (43).

7. A sealing device for preventing lubricating oil leakage at the output end of a ship main engine according to claim 1, characterized in that: The sealing ring (1), the sealing cover (2) and the sealing component (3) are each provided in two groups, and the sealing ring (1) and the sealing component (3) are movably connected via a fixing component (4).

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