Marine sealing integral rudder bearing and mounting method

Abstract

The invention provides a marine sealing integral rudder bearing and an installation method. The marine sealing integral rudder bearing comprises a rudder tube, a rudder bearing body, a sealing mechanism, a rudder stock bush, a bearing bush, a bearing, a distance ring, a lantern ring, a lip-shaped sealing ring and a first pressing ring, a forge piece is arranged on the rudder tube, the rudder bearing body is connected with the rudder tube through the forge piece, and a containing cavity for containing a rudder stock is formed after the rudder bearing body, the forge piece and the rudder tube are combined. The sealing mechanism is arranged in a gap formed among the rudderstock, the rudder bearing body and the forge piece, the bearing, the distance ring and the lantern ring are located in an upper cavity of the rudder bearing body, the distance ring is located above the bearing, the lantern ring is located above the distance ring, the lip-shaped sealing ring is arranged between the lantern ring and the rudder bearing body, and the first pressing ring is arranged above the lip-shaped sealing ring and the rudder bearing body. The rudder can be effectively fixed, and the sealing performance is excellent; the rudder bearing can bear axial force and transverse force of the rudder, is simple and convenient to install, safe and reliable in use performance, convenient to maintain, stable in operation and long in service life.

Description

Technical Field

[0001] The invention relates to the field of ship design and manufacturing, and in particular to a marine sealed integral rudder bearing and an installation method thereof. Background Art

[0002] As a key component connecting the rudder and the hull, the rudder bearing has the important functions of supporting the rudder, transmitting the rudder force and ensuring the stable rotation of the rudder blade. There are many problems with the rudder bearing structure in the prior art, which affects the performance and safety of the ship.

[0003] Firstly, the existing rudder bearing sealing structure is prone to poor sealing, which causes seawater and mud to enter the rudder tube, wear the rudder stock, and even cause water to enter the ship in severe cases, affecting the watertightness of the ship.

[0004] Secondly, the installation of existing rudder bearings usually requires cumbersome steps and precise adjustments, which not only increases the installation cost, but also may affect the installation quality, thereby 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, the present application provides a marine sealed integral rudder bearing and an installation method. Summary of the invention

[0006] In view of the problems of insufficient sealing performance and complex installation of rudder bearings in the prior art, the present application provides a marine sealed integral rudder bearing and an installation method. The marine sealed integral rudder bearing can effectively improve the sealing performance of the rudder bearing, improve the stability of the rudder bearing operation, and extend the service life of the rudder bearing by arranging a distance ring, a sleeve ring, a lip seal ring and a first pressure ring above the bearing, and the installation is simple and convenient.

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

[0008] A rudder cylinder, wherein the rudder cylinder is provided with a forging;

[0009] A rudder bearing body, wherein the rudder bearing body is connected to the rudder barrel through the forging, and the rudder bearing body, the forging and the rudder barrel are combined to form an accommodating cavity for accommodating the rudder stock;

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

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

[0012] A bearing bushing, the bearing bushing is arranged in the rudder bearing body and is sleeved and connected to the outer side wall of the rudder stock bushing;

[0013] A bearing, the bearing being arranged in an upper chamber of the rudder bearing body;

[0014] A distance ring, which is arranged in the upper chamber of the rudder bearing body and is located above the bearing;

[0015] A collar, the collar being arranged in the upper chamber of the rudder bearing body and being located above the distance ring;

[0016] A lip seal ring, the lip seal ring being arranged between the collar and the rudder bearing body;

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

[0018] As an 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 ring stuffing box is arranged in a gap formed between the rudder stock bushing, the rudder bearing body and the forging. The first lip sealing ring, the second lip sealing ring, the lubricating oil ring and the third lip sealing ring are arranged in sequence from bottom to top between the sealing ring stuffing box and the rudder stock bushing.

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

[0020] As an 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] As an implementation manner, a second O-ring is provided between the rudder bearing body and the forging.

[0022] As an implementation manner, the rudder bearing body, the forging and the rudder barrel are connected by a second fastener.

[0023] As an implementation manner, a bearing washer and a thrust ring are further provided in the upper chamber of the rudder bearing body, the thrust ring is located below the bearing, and the bearing washer is located below the thrust ring.

[0024] As an implementation manner, the distance ring is a split distance ring.

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

[0026] A forging is provided above the rudder barrel and on a part of the inner wall, and a groove is formed in the forging located above the rudder barrel;

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

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

[0029] installing the rudder bearing body into the groove of the forging;

[0030] A bearing is installed in the rudder bearing body, a distance 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 ring and the rudder bearing body.

[0033] As an 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 arranged in the gap, specifically including the following steps:

[0034] After the sealing ring stuffing box is placed in the gap, an accommodating space is provided between the sealing ring stuffing box and the rudder stock bushing;

[0035] The first lip sealing ring, the second lip sealing ring, the lubricating oil ring and the third lip sealing ring are arranged in sequence from bottom to top in the accommodating space, the openings of the first lip sealing ring and the second lip sealing ring face downward, and the opening of the third lip sealing ring faces upward.

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

[0037] The marine sealed integral rudder bearing of the present application can effectively ensure the sealing performance by arranging a distance ring, a sleeve ring, a lip seal ring and a first pressure ring above the bearing, prevent moisture or other media from penetrating into the interior of the hull, and ensure the watertightness of the hull. Moreover, the marine sealed integral rudder bearing can withstand the axial force and lateral force of the rudder, and has excellent mechanical properties, which not only improves the control stability of the ship, but also prolongs the service life of the rudder bearing and reduces the risk of failure caused by uneven force. At the same time, the marine sealed integral rudder bearing is convenient for maintenance, has a clear structure, is easy to disassemble and inspect, reduces the difficulty and cost of maintenance, and improves the operating efficiency of the ship.

[0038] The installation method of the marine sealed integral rudder bearing provided by the present application is simple and easy to operate, and the installation time of the rudder bearing is greatly shortened. At the same time, the installation method can also effectively improve the installation quality of the rudder bearing, ensure that the rudder bearing is not damaged during the installation process, and improve the reliability and stability of the integral rudder bearing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0040] Figure 2 A schematic cross-sectional structure diagram of a marine sealed integral rudder bearing according to an embodiment of the present invention is shown in one perspective.

[0041] Figure 3 It is a schematic cross-sectional structure diagram of another perspective of a marine sealed integral rudder bearing according to an embodiment of the present invention.

[0042] Figure 4 It is a schematic structural diagram of a distance ring in a marine sealed integral rudder bearing according to an embodiment of the present invention.

[0043] Component number description

[0044] 10, hull; 100, rudder barrel; 110, forging; 120, second fastener; 130, second O-ring; 200, rudder bearing body; 210, bearing; 220, distance ring; 230, sleeve 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 DESCRIPTION

[0045] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways 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 used to illustrate the basic concept of the present invention in a schematic manner, and therefore the illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0047] As a key component connecting the rudder and the hull, the rudder bearing has the important functions of supporting the rudder, transmitting the rudder force and ensuring the stable rotation of the rudder blade. However, there are many problems with the rudder bearing structure in the prior art, which affect the performance and safety of the ship.

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

[0049] Secondly, the installation is complicated and costly: the existing rudder bearing structure is usually a two-half type, and the installation process usually requires cumbersome steps and precise adjustments, which not only increases the installation cost, but also may 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 heavy weight of the components, it is very difficult to locate the holes during hoisting, the installation efficiency is low, and installation errors are prone to occur, leading to problems in subsequent operation;

[0050] Thirdly, maintenance is difficult: the existing rudder bearing has high maintenance cost. Once a failure occurs, it requires a complicated disassembly and reinstallation process, which increases maintenance time and cost. It not only affects the normal operation of the ship, but may also cause the ship to dock for a long time, resulting in economic losses.

[0051] Finally, the performance is limited: the existing rudder bearings do not perform well when bearing the axial and lateral forces of the rudder, have poor operating stability, and a short service life, which limits the ship's controllability and navigation stability, and affects the long-term use and economic benefits of the ship.

[0052] In view of the above-mentioned defects, the present application provides a marine sealed integral rudder bearing and an installation method thereof, which are now described in detail through the following embodiments.

[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 tiller 500 connected to the rudder stock 300, a collar 230 and a first pressure ring 250, and the above structures are all integral. Among them, the forging 110 is arranged on the rudder barrel 100. Specifically, the forging 110 is located on the upper surface and the inner side wall of the rudder barrel 100, and the forging 110 located above the upper surface of the rudder barrel 100 is formed with a groove structure (not marked in the figure). The rudder barrel 100, the forging 110 and the hull 10 are welded. The rudder bearing body 200 is connected to the rudder barrel 100 through 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, the forging 110 and the rudder barrel 100 are combined to form a receiving cavity (not marked in the figure) for accommodating the rudder bar 300. After the rudder bar 300 is arranged in the above-mentioned receiving cavity, there is a gap (not marked in the figure) between the rudder bar 300, the forging 110 and the rudder bearing body 200, and a sealing mechanism 400 is arranged in the above-mentioned gap.

[0055] The rudder stock bushing 310 is sleeved on the outer wall of the rudder stock 300, which can effectively reduce the friction between the rudder stock 300 and the surrounding structure (such as the rudder bearing), thereby reducing wear, helping to extend the service life of the rudder stock 300 and its surrounding components, and improving the overall reliability of the ship. The material of the rudder stock bushing 310 can be steel, for example. By sleeved the rudder stock bushing 310 on the outer wall of the rudder stock 300 and providing a sealing mechanism 400, seawater can be effectively prevented from infiltrating, and the sealing performance of the rudder stock compartment can be improved. The outer wall of the rudder stock bushing 310 is sleeved with a bearing bushing 320, and the bearing bushing 320 is located in the rudder bearing body 200. The bearing bushing 320 serves as a protective layer between the rudder stock bushing 310 and the rudder bearing body 200, which can prevent direct contact between the rudder stock bushing 310 and the rudder bearing body 200, thereby reducing wear and damage, and helping to extend the service life of the rudder stock bushing 310 and the rudder bearing body 200. At the same time, the rudder stock bushing 310 and the bearing bushing 320 are connected to each other so as to withstand the lateral force of the rudder.

[0056] The upper end of the rudder bearing body 200 has a chamber structure, i.e., an upper chamber (not shown in the figure). The upper chamber of the rudder bearing body 200 is provided with a bearing 210, a distance ring 220 and a collar 230 from bottom to top. 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, which is used to support the rudder bar 300 or other rotating parts and allow them to rotate freely within a certain range. At the same time, the sliding bearing can also provide precise guidance for the rotating parts to ensure their stability and accuracy during the rotation process. The distance ring 220 is provided above the bearing 210, and the distance ring 220 is used to bear the axial force of the rudder. The distance ring 220 can maintain a fixed distance between the bearing 210 and other components, and ensure the overall stability and accuracy of the rudder bearing system by accurately controlling the relative positions of the components. At the same time, the distance ring 220 can also prevent the bearing 210 from moving or offsetting in the axial direction, and keep the bearing 210 in the correct working position. The collar 230 can further fix the position of the distance ring 220 and the bearing 210, ensure the stability of the axial position of the distance ring 220 and the bearing 210, prevent axial movement during operation, and help improve the stability and reliability of the entire rudder bearing system. At the same time, the collar 230 can serve as an additional protective layer to prevent external impurities (such as seawater, mud, etc.) from directly contacting and damaging the distance ring 220 and the bearing 210, which helps to extend the service life of the distance ring 220 and the bearing 210 and reduce maintenance costs. A lip seal ring 240 is arranged in the gap between the collar 230 and the rudder bearing body 200. The lip seal ring 240 is deformed by its lip under the action of the hydraulic pressure, so that the lip edge is close to the sealing surface to achieve a sealing effect. Specifically, the opening of the lip seal ring 240 faces downward, forming a good seal for the rudder bearing body 200. The first pressure ring 250 is arranged above the lip seal ring 240 and above a portion of the upper surface of the rudder bearing body 200. The first pressure ring 250 applies appropriate pressing force to make the lip seal ring 240 in close contact with 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 can effectively prevent seawater and mud from entering the rudder tube, ensure the watertightness of the hull, and improve the safety and reliability of the ship; and can effectively withstand the axial force and lateral force of the rudder, ensure that the rudder blade can work stably under various working conditions, and improve the control performance and navigation stability of the ship. The various parts of the marine sealed integral rudder bearing are integral structures, which are easy to install, improve the installation efficiency and quality of the rudder bearing, and reduce the installation time and cost. At the same time, due to the integral structure of the various parts, it is conducive to further improving the sealing 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 force and lateral force of the rudder, the installation is simple and convenient, the use performance is safe and reliable, the maintenance is convenient, the overall rudder bearing runs more stably, and the service life is extended; the performance of the rudder bearing is also greatly improved.

[0059] In an optional embodiment, if 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 arranged in the gap formed between the rudder stock 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 stock bushing 310. 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 in sequence from bottom to top in this gap. Specifically, the openings of the first lip sealing ring 420 and the second lip sealing ring 430 face downward, and the opening of the third lip sealing ring 440 faces upward.

[0060] In an optional embodiment, if Figure 2 and Figure 3 As shown, at least one first O-ring 470 is disposed between the sealing ring stuffing box 410 and the forging 110. Specifically, Figure 2 and Figure 3 Two first O-rings 470 are arranged from bottom to top.

[0061] In an optional embodiment, if 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 an optional embodiment, if Figure 2 and Figure 3 As shown, a second O-ring 130 is disposed 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 hinged bolt.

[0064] In an optional embodiment, if Figure 2 and Figure 3As shown, a bearing washer 280 and a thrust ring 290 are also provided in the upper chamber 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. At the same time, it can 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 parts, and extend the service life of the rudder bearing. The thrust ring 290 can provide axial support to ensure the stable position of the bearing 210 in the axial direction and prevent axial movement during operation.

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

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

[0067] In an optional embodiment, if 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, comprising the following steps:

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

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

[0071] S3, disposing a bearing bushing 320 on a portion of the outer side wall of the rudder stock bushing 310, wherein the lower surface of the bearing bushing 320 is flush with the lower surface of the forging 110;

[0072] S4, installing the rudder bearing body 200 into the groove of the forging 110;

[0073] S5, installing the bearing 210 in the upper chamber of the rudder bearing body 200, installing the distance ring 220 on the rudder stock 300, and installing the rudder stock 300 in the 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 side wall of the forging 110 and placing the second O-ring 130 on the upper surface of the forging 110 according to the designed position.

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

[0078] S21, hang the sealing stuffing box 410 into the forging 110, the mark on the sealing stuffing box 410 should correspond to the mark on the edge of the forging 110, and ensure that the venting pipe hole is aligned;

[0079] S22, placing the first lip seal ring 420 and the second lip seal ring 430 between the sealing stuffing box 410 and the rudder stock bushing 310 from bottom to top, with the openings of the first lip seal ring 420 and the second lip seal ring 430 facing downward;

[0080] S23, installing the lubricating oil ring 450 above the second lip seal ring 430;

[0081] S24, placing the third lip seal ring 440 above the lubricating oil ring 450, with the opening of the third lip seal ring 440 facing upward;

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

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

[0084] In step S4, the rudder bearing body 200 is installed in the groove of the forging 110, and it is confirmed that it corresponds to the mark of the rudder barrel 100 and is at zero position. Step S4 also includes using the second fastener 120 to fasten 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 the hinged bolt to fasten diagonally alternately, using a stainless steel wire with a diameter of 4 mm to fix two by two in series at the screw head end by spot welding to prevent the bolts from loosening.

[0085] Step S5 specifically includes: installing the bearing washer 280 , the thrust ring 290 and the bearing 210 in sequence; installing the distance ring 220 on the rudder stock 300 , and after the distance ring 220 is installed, slowly lowering the rudder stock 300 and placing it on 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 distance ring 220 by a third fastener 260, and the third fastener 260 may be a hexagonal screw; installing a lip seal ring 240 between the collar 230 and the rudder bearing body 200, and the opening of the lip seal ring 240 faces downward to form a good seal for the rudder bearing body 200.

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

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

[0089] The installation method of the marine sealed integral rudder bearing provided in this embodiment is simple to install and easy to operate, and effectively improves 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 present invention. Anyone familiar with the art may 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 a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A sealed integral rudder bearing for a ship, characterized in that: include: A rudder barrel, wherein the rudder barrel is provided with a forging; A rudder bearing body, wherein the rudder bearing body is connected to the rudder barrel through the forging, and the rudder bearing body, the forging and the rudder barrel are combined to form an accommodating cavity for accommodating the rudder stock; A sealing mechanism, wherein the sealing mechanism is arranged in a gap formed between the rudder stock, the rudder bearing body and the forging; A rudder stock bushing, wherein the rudder stock bushing is sleeved on the outer side wall of the rudder stock; A bearing bushing, the bearing bushing is arranged in the rudder bearing body and is sleeved and connected to the outer side wall of the rudder stock bushing; A bearing, the bearing being arranged in an upper chamber of the rudder bearing body; A distance ring, which is arranged in the upper chamber of the rudder bearing body and is located above the bearing; A collar, the collar being arranged in the upper chamber of the rudder bearing body and being located above the distance ring; A lip seal ring, the lip seal ring being arranged between the collar and the rudder bearing body; A first pressure ring is arranged above the lip seal ring 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 sealing ring, a second lip sealing ring, a third lip sealing ring and a lubricating oil ring. The sealing ring stuffing box is arranged in a gap formed among the rudder stock bushing, the rudder bearing body and the forging. The first lip sealing ring, the second lip sealing ring, the lubricating oil ring and the third lip sealing ring are arranged in sequence from bottom to top between the sealing ring stuffing box and the rudder stock bushing.

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

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

7. The marine sealed integral rudder bearing according to claim 1, characterized in that: A bearing washer and a thrust ring are also arranged in the upper chamber of the rudder bearing body. The thrust ring is located below the bearing, and the bearing washer is located below the thrust ring.

8. The marine sealed integral rudder bearing according to claim 1, characterized in that: The distance ring is a split distance ring.

9. A method for installing a sealed integral rudder bearing for a ship, characterized in that: The following steps are involved: A forging is provided above the rudder barrel and on a part of the inner wall, and a groove is formed in the forging located above the rudder barrel; There is a gap between the rudder stock bushing and the forging, and a sealing mechanism is arranged in the gap; A bearing bushing is provided on a part of the outer side wall of the rudder stock bushing, wherein the lower surface of the bearing bushing is flush with the upper surface of the forging; installing the rudder bearing body into the groove of the forging; A bearing is installed in the rudder bearing body, a distance 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 ring and the rudder bearing body.

10. The installation method according to claim 9, characterized in that: The sealing mechanism comprises 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 arranged in the gap, specifically comprising the following steps: After the sealing ring stuffing box is placed in the gap, an accommodating space is provided between the sealing ring stuffing box and the rudder stock bushing; The first lip sealing ring, the second lip sealing ring, the lubricating oil ring and the third lip sealing ring are arranged in sequence from bottom to top in the accommodating space, the openings of the first lip sealing ring and the second lip sealing ring face downward, and the opening of the third lip sealing ring faces upward.

Images