A marine sealed integral rudder bearing and method of installation

Abstract

The application provides a marine sealed integral rudder bearing and a mounting method. The marine sealed integral rudder bearing comprises a rudder cylinder, a rudder bearing body, a sealing mechanism, a rudder rod bushing, a bearing bushing, a bearing, a distance ring, a sleeve ring, a lip-shaped sealing ring and a first pressing ring. A forge piece is arranged on the rudder cylinder. The rudder bearing body is connected with the rudder cylinder through the forge piece. The rudder bearing body, the forge piece and the rudder cylinder are combined to have a containing cavity for containing the rudder rod. The sealing mechanism is arranged in a gap formed among the rudder rod, the rudder bearing body and the forge piece. The bearing, the distance ring and the sleeve ring are located in an upper chamber of the rudder bearing body. The distance ring is located above the bearing. The sleeve ring is located above the distance ring. The lip-shaped sealing ring is arranged between the sleeve ring and the rudder bearing body. The first pressing ring is arranged above the lip-shaped sealing ring and the rudder bearing body. The rudder can be effectively fixed. The sealing performance is excellent. The axial force and the transverse force of the rudder can be borne. The mounting is simple and convenient. The use performance is safe and reliable. The maintenance is convenient. The integral rudder bearing is stable in operation. The service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of ship design and manufacturing, specifically to a marine sealed integral rudder bearing and its installation method. Background Technology

[0002] As a key component connecting the rudder to the hull, the rudder bearing plays a crucial role in supporting the rudder, transmitting rudder force, and ensuring the stable rotation of the rudder blades. Existing rudder bearing structures have numerous problems, affecting the performance and safety of ships.

[0003] First, the existing rudder bearing sealing structure is prone to poor sealing, which can cause seawater and sediment to enter the rudder tube, wear down the rudder stock, and in severe cases, even cause water to enter the ship, affecting the ship's watertightness.

[0004] Secondly, the installation of existing rudder bearings usually requires cumbersome procedures and precise adjustments, which not only increases installation costs but may also affect installation quality, thus posing a potential threat to the overall performance of the ship.

[0005] Therefore, in order to improve the sealing performance and installation efficiency of the rudder bearing, this application provides a marine sealed integral rudder bearing and its installation method. Summary of the Invention

[0006] In view of the problems of insufficient sealing performance and complex installation of existing rudder bearings, this application provides a marine sealed integral rudder bearing and its installation method. This marine sealed integral rudder bearing, by setting a spacer ring, a collar, a lip seal ring, and a first pressure ring above the bearing, can effectively improve the sealing performance of the rudder bearing, enhance the stability of rudder bearing operation, and extend the service life of the rudder bearing, and is simple and convenient to install.

[0007] On the one hand, this application provides a marine sealed integral rudder bearing, comprising:

[0008] A rudder barrel, on which forgings are provided;

[0009] The rudder bearing body is connected to the rudder barrel via the forging, and the rudder bearing body, the forging, and the rudder barrel, when combined, have a receiving cavity for accommodating the rudder stock.

[0010] A sealing mechanism is disposed in the gap formed between the rudder stock, the rudder bearing body, and the forging;

[0011] A rudder stock bushing, wherein the rudder stock bushing is fitted onto the outer side wall of the rudder stock;

[0012] A bearing bushing is disposed within the rudder bearing body and sleeved and connected to the outer side wall of the rudder stock bushing.

[0013] The bearing is disposed in the upper cavity of the rudder bearing body;

[0014] A spacer ring is disposed in the upper cavity of the rudder bearing body and located above the bearing;

[0015] A collar is disposed in the upper cavity of the rudder bearing body and is located above the spacer ring;

[0016] A lip seal ring is disposed between the collar and the rudder bearing body;

[0017] The first pressure ring is disposed above the lip seal and the rudder bearing body.

[0018] In one embodiment, the sealing mechanism includes a sealing ring stuffing box, a first lip seal ring, a second lip seal ring, a third lip seal ring, and a lubricating oil ring. The sealing ring stuffing box is disposed in the gap formed between the rudder bushing, the rudder bearing body, and the forging. The first lip seal ring, the second lip seal ring, the lubricating oil ring, and the third lip seal ring are arranged sequentially from bottom to top between the sealing ring stuffing box and the rudder bushing.

[0019] In one embodiment, at least one first O-ring is provided between the sealing ring stuffing and the forging.

[0020] In one embodiment, a second pressure ring is provided between the rudder bearing body and the sealing ring stuffing box, and the rudder bearing body, the second pressure ring and the sealing ring stuffing box are connected by a first fastener.

[0021] In one embodiment, a second O-ring is provided between the rudder bearing body and the forging.

[0022] In one embodiment, the rudder bearing body, the forging, and the rudder cylinder are connected by a second fastener.

[0023] In one embodiment, a bearing washer and a thrust ring are also provided in the upper cavity of the rudder bearing body, with the thrust ring located below the bearing and the bearing washer located below the thrust ring.

[0024] In one implementation, the distance ring is a split-type distance ring.

[0025] On the other hand, this application provides a method for installing a marine sealed integral rudder bearing, including the following steps:

[0026] Forgings are provided above the rudder barrel and on part of the inner wall, with the forgings above the rudder barrel forming a groove;

[0027] There is a gap between the rudder bushing and the forging, and the sealing mechanism is disposed in the gap;

[0028] A bearing bushing is provided on a portion of the outer side wall of the rudder stock bushing, and the lower surface of the bearing bushing is flush with the upper surface of the forging.

[0029] The rudder bearing body is installed into the groove of the forging;

[0030] A bearing is installed in the rudder bearing body, a spacer ring is installed on the rudder stock, and the rudder stock is installed in the rudder bearing body;

[0031] A collar is installed above the bearing, and a lip seal is installed between the collar and the upper chamber of the rudder bearing body.

[0032] A first pressure ring is installed above the lip seal and the rudder bearing body.

[0033] In one embodiment, the sealing mechanism includes a sealing ring stuffing box, a first lip sealing ring, a second lip sealing ring, a third lip sealing ring, and a lubricating oil ring. The sealing mechanism is disposed within the gap, specifically including the following steps:

[0034] After the sealing ring stuffing box is placed into the gap, there is still a receiving space between the sealing ring stuffing box and the rudder bushing;

[0035] Within the accommodating space, a first lip-shaped sealing ring, a second lip-shaped sealing ring, a lubricating oil ring, and a third lip-shaped sealing ring are arranged sequentially from bottom to top. The openings of the first and second lip-shaped sealing rings face downwards, while the opening of the third lip-shaped sealing ring faces upwards.

[0036] As described above, the marine sealed integral rudder bearing and its installation method of this application have the following beneficial effects:

[0037] The marine sealed integral rudder bearing of this application, by incorporating a spacer ring, collar, lip seal, and first pressure ring above the bearing, effectively ensures sealing performance, preventing moisture or other media from seeping into the hull and guaranteeing the hull's watertightness. Furthermore, this marine sealed integral rudder bearing can withstand the axial and lateral forces of the rudder, exhibiting excellent mechanical properties. This not only improves the ship's handling stability but also extends the service life of the rudder bearing, reducing the risk of failure due to uneven stress. Simultaneously, this marine sealed integral rudder bearing offers ease of maintenance; its clear structure facilitates disassembly and inspection, reducing maintenance difficulty and costs, and improving the ship's operational efficiency.

[0038] The installation method for the marine sealed integral rudder bearing provided in this application is simple, easy to implement, and convenient to operate, greatly shortening the installation time of the rudder bearing. At the same time, this installation method can effectively improve the installation quality of the rudder bearing, ensuring that the rudder bearing is not damaged during installation, and improving the reliability and stability of the integral rudder bearing. Attached Figure Description

[0039] Figure 1 The diagram shown is a three-dimensional structural schematic of a marine sealed integral rudder bearing according to an embodiment of the present invention.

[0040] Figure 2 The diagram shown is a cross-sectional view of a marine sealed integral rudder bearing according to an embodiment of the present invention.

[0041] Figure 3 This is a cross-sectional view of the marine sealed integral rudder bearing, which is an embodiment of the present invention.

[0042] Figure 4 The diagram shown is a structural schematic of the spacer ring in the integral marine sealing rudder bearing according to an embodiment of the present invention.

[0043] Component designation explanation

[0044] 10, Hull; 100, Rudder barrel; 110, Forging; 120, Second fastener; 130, Second O-ring; 200, Rudder bearing body; 210, Bearing; 220, Spacer ring; 230, Collar ring; 240, Lip seal ring; 250, First pressure ring; 260, Third fastener; 270, Fourth fastener; 280, Bearing washer; 290, Thrust ring; 300, Rudder stock; 310, Rudder stock bushing; 320, Bearing bushing; 400, Sealing mechanism; 410, Sealing ring stuffing box; 420, First lip seal ring; 430, Second lip seal ring; 440, Third lip seal ring; 450, Lubricating oil ring; 460, Second pressure ring; 470, First O-ring; 480, First fastener; 500, Rudder handle. Detailed Implementation

[0045] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0046] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0047] As a key component connecting the rudder to the hull, the rudder bearing plays a crucial role in supporting the rudder, transmitting rudder force, and ensuring the stable rotation of the rudder blades. However, existing rudder bearing structures have numerous problems, affecting the performance and safety of ships.

[0048] First, the sealing performance is insufficient: the existing rudder bearing sealing structure is prone to poor sealing, which allows seawater and silt to enter the rudder tube, wear the rudder stock, and in severe cases, even cause the ship to take on water, affecting the ship's watertightness. This poor sealing not only increases maintenance costs, but may also cause serious safety accidents and endanger the ship's navigation safety.

[0049] Secondly, the installation is complex and costly: the existing rudder bearing structure is usually a two-piece type, and the installation process usually requires cumbersome steps and precise adjustments, which not only increases the installation cost, but may also affect the installation quality due to improper installation, thus posing a potential threat to the overall performance of the ship. Especially in the installation of large ships, due to the large weight of the components, it is very difficult to position the holes during hoisting, resulting in low installation efficiency and easy installation errors, leading to problems in subsequent operation.

[0050] Secondly, maintenance is difficult: the existing rudder bearings have high maintenance costs, and once a failure occurs, a complex disassembly and reinstallation process is required, which increases maintenance time and costs. This not only affects the normal operation of the ship, but may also lead to the ship being docked for a long time, resulting in economic losses.

[0051] Finally, performance limitations: Existing rudder bearings do not perform well when bearing the axial and lateral forces of the rudder, resulting in poor operational stability and a short service life. This limits the ship's maneuverability and navigation stability, and affects the ship's long-term use and economic benefits.

[0052] To address the aforementioned deficiencies, this application provides a marine sealed integral rudder bearing and its installation method. The following embodiments will provide a detailed description.

[0053] This embodiment provides a marine sealed integral rudder bearing, such as Figure 1 As shown, the external structure of the marine sealed integral rudder bearing includes a forging 110, a rudder bearing body 200, a rudder stock 300, a rudder handle 500 connected to the rudder stock 300, a collar 230, and a first pressure ring 250, all of which are integral. The forging 110 is mounted on the rudder barrel 100. Specifically, the forging 110 is located on the upper surface and inner sidewall of the rudder barrel 100, and the forging 110 located above the upper surface of the rudder barrel 100 forms a groove structure (not shown in the figure). The rudder barrel 100, the forging 110, and the hull 10 are welded together. The rudder bearing body 200 is connected to the rudder barrel 100 via the forging 110, and the rudder bearing body 200 is embedded in the groove structure of the forging 110.

[0054] like Figure 2 and Figure 3 As shown, the rudder bearing body 200, forging 110 and rudder barrel 100, when combined, have a receiving cavity (not shown in the figure) for accommodating the rudder stock 300. After the rudder stock 300 is placed in the receiving cavity, there is a gap (not shown in the figure) between the rudder stock 300, forging 110 and rudder bearing body 200. A sealing mechanism 400 is provided in the gap.

[0055] The rudder stock bushing 310 is fitted onto the outer wall of the rudder stock 300, effectively reducing friction between the rudder stock 300 and surrounding structures (such as the rudder bearing), thereby reducing wear and helping to extend the service life of the rudder stock 300 and its surrounding components, and improving the overall reliability of the ship. The rudder stock bushing 310 can be made of, for example, steel. By fitting the rudder stock bushing 310 onto the outer wall of the rudder stock 300 and providing a sealing mechanism 400, seawater infiltration can be effectively prevented, improving the sealing performance of the rudder stock compartment. A bearing bushing 320 is fitted onto the outer wall of the rudder stock bushing 310, and the bearing bushing 320 is located within the rudder bearing body 200. The bearing bushing 320 acts as a protective layer between the rudder stock bushing 310 and the rudder bearing body 200, preventing direct contact between them, thereby reducing wear and damage, and helping to extend the service life of both the rudder stock bushing 310 and the rudder bearing body 200. Meanwhile, the rudder stock bushing 310 and the bearing bushing 320, when connected, can withstand the lateral force of the rudder.

[0056] The upper end of the rudder bearing body 200 has a chamber structure, namely the upper chamber (not shown in the figure). Within the upper chamber of the rudder bearing body 200, from bottom to top, a bearing 210, a spacer ring 220, and a collar 230 are sequentially arranged. A lip seal 240 is provided outside the collar 230. A first pressure ring 250 is provided on the upper surface of the lip seal 240 and the upper surface of the rudder bearing body 200. The bearing 210 is a sliding bearing, used to support the rudder stock 300 or other rotating components, allowing them to rotate freely within a certain range. Simultaneously, the sliding bearing provides precise guidance for the rotating components, ensuring their stability and accuracy during rotation. The spacer ring 220 is located above the bearing 210 and is used to withstand the axial force of the rudder. The spacer ring 220 maintains a fixed distance between the bearing 210 and other components. By precisely controlling the relative positions of each component, it ensures the overall stability and accuracy of the rudder bearing system. Simultaneously, the spacer ring 220 prevents the bearing 210 from moving or shifting axially, keeping it in the correct working position. The collar 230 further fixes the positions of the spacer ring 220 and the bearing 210, ensuring their axial stability and preventing axial movement during operation. This contributes to improving the stability and reliability of the entire rudder bearing system. Furthermore, the collar 230 acts as an additional protective layer, preventing external impurities (such as seawater and silt) from directly contacting and damaging the spacer ring 220 and bearing 210, thus extending their service life and reducing maintenance costs. A lip seal 240 is installed in the gap between the collar 230 and the rudder bearing body 200. The lip seal 240 deforms under hydraulic pressure, causing its lip to tightly adhere to the sealing surface, achieving a sealing effect. Specifically, the opening of the lip seal 240 faces downwards, forming a good seal against the rudder bearing body 200. The first pressure ring 250 is positioned above the lip seal 240 and above part of the upper surface of the rudder bearing body 200. By applying appropriate clamping force, the first pressure ring 250 ensures tight contact between the lip seal 240 and the sealing surface, further improving the sealing effect. Specifically, the upper surface of the first pressure ring 250 is flush with the upper surface of the collar 230.

[0057] The marine sealed integral rudder bearing provided in this embodiment effectively prevents seawater and sediment from entering the rudder tube, ensuring the watertightness of the hull and improving the safety and reliability of the vessel. It can also effectively withstand the axial and lateral forces of the rudder, ensuring stable operation of the rudder blade under various working conditions, thus improving the vessel's handling performance and navigation stability. The integral structure of this marine sealed integral rudder bearing facilitates installation, improves installation efficiency and quality, and reduces installation time and cost. Furthermore, the integral structure of each part further enhances the sealing performance of the rudder bearing.

[0058] By using the rudder bearing structure provided in this embodiment, the rudder can be better installed and fixed, and the sealing performance is excellent, which can ensure the watertightness of the hull. At the same time, it can withstand the axial and lateral forces of the rudder, is simple and convenient to install, safe and reliable in use, easy to maintain, and the overall rudder bearing operates more stably and has an extended service life. The performance of the rudder bearing is also greatly improved.

[0059] In optional embodiments, such as Figure 2 and Figure 3 As shown, the sealing mechanism 400 includes a sealing ring stuffing box 410, a first lip sealing ring 420, a second lip sealing ring 430, a third lip sealing ring 440, and a lubricating oil ring 450. The sealing ring stuffing box 410 is disposed in the gap formed between the rudder bushing 310, the rudder bearing body 200, and the forging 110. After the sealing ring stuffing box 410 is filled, there is still a gap between the sealing ring stuffing box 410 and the rudder bushing 310. In this gap, the first lip sealing ring 420, the second lip sealing ring 430, the lubricating oil ring 450, and the third lip sealing ring 440 are arranged sequentially from bottom to top. Specifically, the openings of the first lip sealing ring 420 and the second lip sealing ring 430 face downwards, and the opening of the third lip sealing ring 440 faces upwards.

[0060] In optional embodiments, such as Figure 2 and Figure 3 As shown, at least one first O-ring 470 is provided between the sealing ring stuffing box 410 and the forging 110. Specifically, Figure 2 and Figure 3 Two first O-rings 470 are set from bottom to top in the middle.

[0061] In optional embodiments, such as Figure 2 and Figure 3 As shown, a second pressure ring 460 is provided between the rudder bearing body 200 and the sealing ring stuffing box 410. The second pressure ring 460 cooperates with the sealing mechanism 400 to further improve the sealing performance of the rudder bearing system. The rudder bearing body 200, the second pressure ring 460, and the sealing stuffing box 410 are connected by a first fastener 480. Specifically, the first fastener 480 can be a countersunk screw.

[0062] In optional embodiments, such as Figure 2 and Figure 3 As shown, a second O-ring 130 is provided between the rudder bearing body 200 and the forging 110.

[0063] The rudder bearing body 200, the forging 110, and the rudder barrel 100 are connected by a second fastener 120. Specifically, the second fastener 120 can be a hinge bolt.

[0064] In optional embodiments, such as Figure 2 and Figure 3As shown, a bearing washer 280 and a thrust ring 290 are also provided in the upper cavity of the rudder bearing body 200. The thrust ring 290 is located below the bearing 210, and the bearing washer 280 is located below the thrust ring 290. The bearing washer 280 provides necessary support and isolation to ensure the stable operation of the bearing 210. It can also be used to adjust the clearance of the bearing 210 to ensure that the performance of the bearing 210 is not affected by excessive or insufficient clearance during operation. It can also absorb and reduce vibration and impact, protect the bearing 210 and other mechanical components, and extend the service life of the rudder bearing. The thrust ring 290 provides axial support to ensure the axial position stability of the bearing 210 and prevent axial movement during operation.

[0065] The spacer ring 220 and the collar 230 are connected by a third fastener 260. Specifically, the third fastener 260 may be, for example, a hexagonal screw.

[0066] The first pressure ring 250 is connected to the rudder bearing body 200 by a fourth fastener 270. Specifically, the fourth fastener 270 may be, for example, a hexagonal screw.

[0067] In optional embodiments, such as Figure 4 As shown, the distance ring 220 can be a split distance ring. The distance ring 220 can be divided into at least two parts.

[0068] This embodiment also provides a method for installing a marine sealed integral rudder bearing, including the following steps:

[0069] S1. A forging 110 is provided above the rudder barrel 100 and on part of the inner wall, and the forging 110 located above the rudder barrel 100 forms a groove.

[0070] S2. There is a gap between the rudder bushing 310 and the forging 110, and the sealing mechanism 400 is placed in the gap;

[0071] S3. A bearing bushing 320 is provided on a portion of the outer wall of the rudder bushing 310, and the lower surface of the bearing bushing 320 is flush with the lower surface of the forging 110.

[0072] S4. Install the rudder bearing body 200 into the groove of the forging 110;

[0073] S5. Install bearing 210 in the upper cavity of rudder bearing body 200, install spacer ring 220 on rudder stock 300, and install rudder stock 300 in rudder bearing body 200.

[0074] S6. Install a collar above the bearing 210 and install a lip seal 240 between the collar 230 and the upper chamber of the rudder bearing body 200.

[0075] S7. Install the first pressure ring 250 above the lip seal 240 and the rudder bearing body 200.

[0076] Step S1 also includes cleaning the groove of the forging 110; placing the first O-ring 470 on the inner wall of the forging 110 and the second O-ring 130 on the upper surface of the forging 110 according to the design position.

[0077] The sealing mechanism 400 in step S2 includes a sealing stuffing box 410, a first lip sealing ring 420, a second lip sealing ring 430, a third lip sealing ring 440, and a lubricating oil ring 450. The filling of the sealing mechanism 400 specifically includes the following steps:

[0078] S21. Hoist the sealing stuffing box 410 into the forging 110. The markings on the sealing stuffing box 410 should correspond to the markings on the upper edge of the forging 110 to ensure the alignment of the vent hole.

[0079] S22. Place the first lip seal ring 420 and the second lip seal ring 430 from bottom to top between the sealing packing gland 410 and the rudder bushing 310, with the openings of the first lip seal ring 420 and the second lip seal ring 430 facing downwards.

[0080] S23. Install the lubricating oil ring 450 above the second lip seal ring 430;

[0081] S24. Place the third lip seal ring 440 above the lubricating oil ring 450, with the opening of the third lip seal ring 440 facing upwards.

[0082] S25. Install a second pressure ring 460 above the third lip sealing ring 440 and the sealing stuffing box 410, and fasten the second pressure ring and the sealing stuffing box with the first fastener 480.

[0083] In step S3, the bearing bushing 320 is installed on the outer wall of the rudder stock bushing 310. The bearing bushing 320 is installed in a position within the rudder bearing body 200 to be installed.

[0084] In step S4, the rudder bearing body 200 is installed into the groove of the forging 110, confirming that it corresponds to the mark on the rudder barrel 100 and is in the zero position. Step S4 also includes using a second fastener 120 to secure the rudder bearing body 200, the forging 110, and the rudder barrel 100. The second fastener 120 can be a hinged bolt. Specifically, it includes: using hinged bolts to tighten diagonally alternately, and using 4mm diameter stainless steel wire to fix them in pairs at the bolt head end by spot welding to prevent loosening between the bolts.

[0085] Step S5 specifically includes: sequentially installing the bearing washer 280, thrust ring 290, and bearing 210; installing the spacer ring 220 on the rudder stock 300; after the spacer ring 220 is installed, slowly lowering the rudder stock 300 onto the rudder bearing body 200.

[0086] Step S6 specifically includes: installing a collar 230 above the bearing 210, and fastening the collar 230 and the spacer ring 220 together with a third fastener 260, which can be a hexagonal screw; installing a lip seal 240 between the collar 230 and the rudder bearing body 200, with the opening of the lip seal 240 facing downward to form a good seal on the rudder bearing body 200.

[0087] Step S7 specifically includes: installing the first pressure ring 250, which is fastened to the rudder bearing body 200 by the fourth fastener 270, which can be a hexagonal screw; installing the rudder bearing friction indicator and marking it to detect the wear and sinking of the rudder bearing.

[0088] Step S7 is followed by a step of cleaning all tools, thus completing the entire rudder bearing installation.

[0089] The installation method for the marine sealed integral rudder bearing provided in this embodiment is simple to install and easy to operate, effectively improving the installation quality and efficiency of the rudder bearing.

[0090] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A marine sealed integral rudder bearing, characterized in that, include: A rudder barrel, on which a forging is provided, the forging being located on the upper surface and inner sidewall of the rudder barrel, the forging forming a groove for mounting the rudder bearing body; The rudder bearing body is connected to the rudder barrel via the forging. The rudder bearing body is embedded in the groove of the forging, and the rudder bearing body, the forging, and the rudder barrel, when combined, have a receiving cavity for accommodating the rudder stock. A second O-ring is provided between the rudder bearing body and the forging. A sealing mechanism is disposed in the gap formed between the rudder stock, the rudder bearing body, and the forging; A rudder stock bushing, wherein the rudder stock bushing is fitted onto the outer side wall of the rudder stock; A bearing bushing is disposed within the rudder bearing body and sleeved and connected to the outer side wall of the rudder stock bushing. The bearing is disposed in the upper cavity of the rudder bearing body; the upper cavity of the rudder bearing body is also provided with a bearing washer and a thrust ring, the thrust ring being located below the bearing and the bearing washer being located below the thrust ring; A spacer ring is disposed in the upper cavity of the rudder bearing body and located above the bearing; the spacer ring is a split-type spacer ring. A collar is disposed in the upper cavity of the rudder bearing body and is located above the spacer ring; A lip seal ring is disposed between the collar and the rudder bearing body; The first pressure ring is disposed above the lip seal and the rudder bearing body.

2. The marine sealed integral rudder bearing according to claim 1, characterized in that, The sealing mechanism includes a sealing ring stuffing box, a first lip seal ring, a second lip seal ring, a third lip seal ring, and a lubricating oil ring. The sealing ring stuffing box is disposed in the gap formed between the rudder bushing, the rudder bearing body, and the forging. The first lip seal ring, the second lip seal ring, the lubricating oil ring, and the third lip seal ring are arranged sequentially from bottom to top between the sealing ring stuffing box and the rudder bushing.

3. The marine sealed integral rudder bearing according to claim 2, characterized in that, At least one first O-ring is provided between the sealing ring stuffing and the forging.

4. The marine sealed integral rudder bearing according to claim 2, characterized in that, A second pressure ring is provided between the rudder bearing body and the sealing ring stuffing box, and the rudder bearing body, the second pressure ring and the sealing ring stuffing box are connected by a first fastener.

5. The marine sealed integral rudder bearing according to claim 1, characterized in that, The rudder bearing body, the forging, and the rudder cylinder are connected by a second fastener.

6. A method for installing a marine sealed integral rudder bearing, used for installing the marine sealed integral rudder bearing according to any one of claims 1 to 5, characterized in that, Includes the following steps: Forgings are provided above the rudder barrel and on part of the inner wall, with the forgings above the rudder barrel forming a groove; There is a gap between the rudder bushing and the forging, and the sealing mechanism is disposed in the gap; A bearing bushing is provided on a portion of the outer side wall of the rudder stock bushing, and the lower surface of the bearing bushing is flush with the upper surface of the forging. The rudder bearing body is installed into the groove of the forging; A bearing is installed in the rudder bearing body, a spacer ring is installed on the rudder stock, and the rudder stock is installed in the rudder bearing body; A collar is installed above the bearing, and a lip seal is installed between the collar and the upper chamber of the rudder bearing body. A first pressure ring is installed above the lip seal and the rudder bearing body.

7. The installation method according to claim 6, characterized in that, The sealing mechanism includes a sealing ring stuffing box, a first lip sealing ring, a second lip sealing ring, a third lip sealing ring, and a lubricating oil ring. The sealing mechanism is positioned within the gap, specifically comprising the following steps: After the sealing ring stuffing box is placed into the gap, there is still a receiving space between the sealing ring stuffing box and the rudder bushing; Within the accommodating space, a first lip-shaped sealing ring, a second lip-shaped sealing ring, a lubricating oil ring, and a third lip-shaped sealing ring are arranged sequentially from bottom to top. The openings of the first and second lip-shaped sealing rings face downwards, while the opening of the third lip-shaped sealing ring faces upwards.

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