Watertight rudder bearing

Abstract

The utility model relates to the technical field of ship, specifically belongs to a watertight rudder bearing, including body, bush, colloid seal ring, gland, sealing washer, bush is tightly cooperated in the body, and the bush end portion in the body, contacts and installs colloid seal ring, in colloid seal ring end portion, has gland one, in the other side of gland one, is provided with gland two and has sealing washer, the utility model has the advantages of: in the utility model, through the sealing washer and gland of setting again in the gland one outside in the body, sealing washer and rudder post installation fastening, and the sealing performance is good, can prevent the internal lubricating oil of rudder bearing from leaking, can prevent the seawater (or river water) of rudder bearing outside from entering the inside of rudder bearing, set flange on the body, and the flange is fixed with the ship body, can effectively avoid the deformation of rudder bearing body and the ship body installation, guarantees the smooth use of rudder bearing and rudder post cooperation, and is trouble-free.

Description

Technical Field

[0001] This utility model relates to the field of marine technology, specifically to a watertight lower rudder bearing. Background Technology

[0002] The use of lower rudder bearings in the existing technology still has the following problems: 1. Sealing issues: Although the lower rudder bearing is designed with a sealing structure, the sealing effect is poor. Water, mud, and impurities often leak upwards from the lower rudder bearing, which leads to accelerated wear of the bushing, reduced service life, and even water entering the hull from here, affecting the stability of the ship.

[0003] 2. Installation issues: During the installation of the lower rudder bearing, the bearing body is directly welded to the hull. During welding, thermal deformation (also known as welding deformation) is likely to occur. After the body deforms, the bushing will also deform, resulting in a smaller or even no clearance between the lower rudder bearing and the rudder stock, causing the bearing to seize up and the rudder to fail. Summary of the Invention

[0004] This invention provides a watertight lower rudder bearing to enhance sealing performance.

[0005] A watertight lower rudder bearing, characterized in that it comprises a body, a bushing, a rubber sealing ring, a gland, and a sealing ring; The bushing is tightly fitted into the body, and a rubber sealing ring is installed at the end of the bushing inside the body; a pressure cap is pressed at the end of the rubber sealing ring; on the other side of the pressure cap, a pressure cap two is provided, which presses a sealing ring.

[0006] Furthermore, bolt holes are provided on the second and first pressure caps, and bolts are used to fix the second and first pressure caps to the main body.

[0007] Furthermore, a mounting flange is formed on the body.

[0008] Furthermore, bolt holes are provided on the flange.

[0009] Furthermore, the flange is provided with a sealing ring mounting groove.

[0010] Furthermore, the mounting groove is located on the upper or lower side of the flange.

[0011] The beneficial effects of this utility model are: In this invention, a sealing ring and a pressure cover are set on the outer side of the pressure cover inside the main body. The sealing ring is installed and fastened to the rudder stock, which has good sealing performance. It can prevent the lubricating oil inside the lower rudder bearing from leaking out and can also prevent seawater (or river water) outside the lower rudder bearing from entering the lower rudder bearing.

[0012] A flange is installed on the main body and fixed to the hull, which can effectively avoid deformation caused by the installation of the lower rudder bearing body and the hull, ensuring smooth and trouble-free use of the lower rudder bearing and the rudder stock. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure in Example 2; Figure 3 This is a schematic diagram of the structure in Example 2; Figure 4 This is a schematic diagram of the application structure in Example 2; In the diagram: 1. Body; 2. Bushing; 3. Rubber sealing ring; 4. Gland 1; 5. Gland 2; 6. Sealing ring; 7. Bolt; 8. Flange; 9. Sealing ring 2; 10. Hull. Detailed Implementation

[0014] The technical solution of the present invention will be further explained and illustrated below through specific embodiments. Example 1

[0015] See appendix Figure 1 This utility model provides a watertight lower rudder bearing, characterized in that it includes a body 1, a bushing 2, a rubber sealing ring 3, a pressure cap, and a sealing ring. The bushing 2 is tightly fitted inside the body 1. A rubber sealing ring 3 is installed at the end of the bushing 2 inside the body 1. A pressure cap 4 is pressed onto the end of the rubber sealing ring 3. On the other side of the pressure cap 1, a pressure cap 5 is provided, pressing a sealing ring 6. In this embodiment, the sealing ring 6 used is an O-ring.

[0016] Bolt holes are provided on the second pressure cover 5 and the first pressure cover 4, and bolts 7 fix the second pressure cover 5 and the first pressure cover 1 to the main body 1. Example 2

[0017] Based on the structure of Embodiment 1, a mounting flange 8 is formed on the main body 1. The flange is angled according to the installation requirements of the hull.

[0018] When the installation method is bolt connection, bolt holes are provided on the flange 8. A sealing ring mounting groove is provided on the flange 8, and a second sealing ring 9 is placed within the mounting groove. The mounting groove is located on the upper or lower side of the flange 8, depending on the connection to the hull 10.

[0019] When the installation method is welding, there is no need to set a sealing ring mounting groove.

Claims

1. A watertight lower rudder bearing, characterized in that, It includes the body, bushing, rubber sealing ring, gland, and sealing ring; The bushing is tightly fitted into the body, and a rubber sealing ring is installed at the end of the bushing inside the body; a pressure cap is pressed at the end of the rubber sealing ring; on the other side of the pressure cap, a pressure cap two is provided, which presses a sealing ring.

2. The watertight lower rudder bearing according to claim 1, characterized in that, The pressure caps 2 and 1 are provided with bolt holes, and the bolts fix the pressure caps 2 and 1 to the main body.

3. The watertight lower rudder bearing according to claim 1, characterized in that, The body has a mounting flange.

4. The watertight lower rudder bearing according to claim 3, characterized in that, The flange has bolt holes.

5. The watertight lower rudder bearing according to claim 3, characterized in that, The flange is provided with a sealing ring mounting groove.

6. The watertight lower rudder bearing according to claim 5, characterized in that, The mounting groove is located on the upper or lower side of the flange.

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