Integrated rudder bearing using split type cover plate

Abstract

The invention belongs to the technical field of ship engineering, and discloses an integrated rudder bearing using a split type cover plate, the integrated rudder bearing mainly comprises a rudder bearing body (1), a thrust ring (3), a wear-resistant ring (4) and the split type cover plate (2), the rudder bearing body (1) is fixed on a ship body structure through a foundation bolt and a stop block, the wear-resistant ring (4) is arranged in a groove (7) of the rudder bearing body (1), and the split type cover plate (2) is arranged in the groove (7). A thrust ring (3) is arranged on the wear-resisting ring (4), and a split type cover plate (2) is arranged on the thrust ring (3); a J-shaped sealing ring (9) is arranged on the outer side of the split type cover plate (2), the J-shaped sealing ring (9) is arranged on a sealing bottom ring (23), a sealing cover plate (22) is arranged on the sealing bottom ring (23), and the sealing bottom ring (23) is connected with the rudder bearing body (1) through a fastener I (17). The manufacturing cost is reduced, rudder bearing accessories can be replaced under the condition that the steering engine is not disassembled, and the service life of the rudder bearing is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship engineering, and specifically relates to an integral rudder bearing using a split cover plate. Background Art

[0002] At present, in ship engineering, rudder bearings mainly include split rudder bearings and integral rudder bearings. The split rudder bearing has a complex structure and is difficult to install. Although the current integral rudder bearing has a simple structure, the axial load needs to be transmitted through a clamping ring. The cover plate is between the clamping ring and the rudder bearing body, which undoubtedly increases the manufacturing cost. In addition, this kind of integral rudder bearing cannot replace the components inside the rudder bearing without disassembling the steering gear.

[0003] An upper rudder bearing disclosed in the related reference CN112644678A includes a rudder sleeve and a rudder bearing body. The bottom of the rudder bearing body has a flange, and the flange extends into the rudder sleeve; the rudder bearing body is fixedly connected to the rudder sleeve. The top of the rudder sleeve has a flange for fixedly connecting to the steering gear deck; the outer wall of the flange cooperates with the inner wall of the flange, and the rudder bearing body is fixedly connected to the flange. The upper rudder bearing further includes a friction plate and a rudder bearing frame. The friction plate is arranged at the top of the rudder bearing body, and the rudder bearing frame is arranged at the top of the friction plate. However, there is no seal between the rudder bearing frame and the rudder bearing body, and moisture, dirt, etc. enter the inside of the rudder bearing, so the service life of the rudder bearing is relatively short. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an integral rudder bearing using a split cover plate, which can reduce the manufacturing cost, replace the accessories of the rudder bearing without disassembling the steering gear, and improve the service life of the rudder bearing.

[0005] To solve the above technical problems, the present invention provides an integral rudder bearing using a split cover plate, which mainly consists of a rudder bearing body, a thrust ring, a wear-resistant ring, and a split cover plate. The rudder bearing body is fixed on the hull structure. There is a rudder stock and a shaft sleeve in the shaft hole of the rudder bearing body. The rudder bearing body is fixed on the hull structure through anchor bolts and stop blocks. A wear-resistant ring is arranged in the groove on the end face of the rudder bearing body, a thrust ring is arranged on the wear-resistant ring, and a split cover plate is arranged on the thrust ring; a J-shaped sealing ring is arranged on the outside of the split cover plate. The J-shaped sealing ring is arranged on a sealing bottom ring, and the sealing bottom ring has a sealing cover plate. The sealing bottom ring is connected to the rudder bearing body through fasteners I.

[0006] By adopting the above technical solutions, the integrated rudder bearing structure integrates the rudder bearing body, thrust ring, wear-resistant ring, and split cover plate, removes the clamping ring, improves the cover plate seal, greatly reduces the manufacturing cost, saves about 20,000 yuan in manufacturing cost per ship set, and makes the overall structure more compact, occupies less space, and is conducive to the rational utilization of the internal space of the ship. The design of setting the assembly part on the split cover plate enables that when maintenance or component replacement is needed, there is no need to disassemble the steering gear, and only the split cover plate and its related components need to be disassembled, greatly improving the convenience of disassembly and assembly. During maintenance or overhaul, the workload is reduced, the maintenance time is shortened, and the risks and costs that may be brought about by disassembling the steering gear are also reduced.

[0007] Preferably, the split cover plate is in two halves. A vacancy is dug on the split cover plate, and the plate part on one side of the vacancy forms the assembly part, and assembly holes I and II are arranged on the assembly part.

[0008] By adopting the above technical solutions, by pre-digging the vacancy and setting the assembly part on each half in advance, during installation, only the two half cover plates need to be aligned and fixed with bolts, without complex adjustment or calibration, significantly shortening the installation time. When maintenance or replacement of the components inside the rudder bearing is needed, only the bolts need to be loosened and the two half cover plates are separated, then the internal components can be easily accessed without disassembling the steering gear, facilitating timely replacement of damaged seals and ensuring the long-term stable operation of the rudder bearing.

[0009] Preferably, the vacancy has a slope.

[0010] By adopting the above technical solutions, the slope design makes the installation and disassembly operations of the split cover plate easy and labor-saving, and can disperse the stress concentration phenomenon when the cover plate is stressed, making the stress distribution more uniform, improving the bearing capacity and service life of the cover plate. When maintenance or replacement of the components inside the rudder bearing is needed, the slope design can simplify the disassembly and installation processes, reducing the maintenance time and workload.

[0011] Preferably, an oblique cut is provided at the tail of the rudder bearing body.

[0012] By adopting the above technical solutions, the oblique cut design forms a guiding inclined plane at the tail of the rudder bearing body. When the rudder bearing body is inserted into the rudder bearing sleeve, the inclined plane can automatically guide the rudder bearing body into the sleeve, reducing the risk of jamming or collision caused by alignment deviation.

[0013] Preferably, the thrust ring is installed on the bottom surface of the split cover plate through fasteners II.

[0014] By adopting the above technical solutions, when maintenance or replacement of the thrust ring is needed, it can be disassembled only by loosening the fasteners, with convenient disassembly and maintenance.

[0015] Preferably, the wear-resistant ring is installed in the groove through fasteners III.

[0016] By adopting the above technical solution, the fasteners firmly fix the wear-resistant ring in the groove, effectively preventing the wear-resistant ring from loosening or shifting during operation, and improving the stability and reliability of the rudder bearing. The wear-resistant ring is installed in the groove through fasteners such as bolts and screws. This design makes the installation and disassembly process simple and fast. When maintenance or replacement of the wear-resistant ring is required, it can be taken out by simply loosening the fasteners, without the need for complex tools or operations. This convenient disassembly and assembly method helps to shorten the ship's downtime and improve the operation efficiency.

[0017] Preferably, a receiving groove is formed on the sealing bottom ring, and a J-shaped sealing ring is arranged in the receiving groove.

[0018] By adopting the above technical solution, the receiving groove provides an accurate installation position for the J-shaped sealing ring, ensuring that the J-shaped sealing ring can closely fit between the sealing bottom ring and the cooperating components, the split cover plate, forming a reliable sealing barrier and improving the sealing reliability of the rudder bearing. When the J-shaped sealing ring is worn or damaged, it can be conveniently taken out from the receiving groove and a new sealing ring can be replaced without disassembling the entire sealing structure, reducing the maintenance difficulty and cost.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The integral rudder bearing structure of the present invention integrates the rudder bearing body, thrust ring, wear-resistant ring, and split cover plate, removes the clamping ring, and improves the cover plate seal. The manufacturing cost is greatly reduced, saving about 20,000 yuan in manufacturing cost per ship set, and making the overall structure more compact, occupying less space, which is conducive to the rational use of the internal space of the ship. The design of the assembly part on the split cover plate enables the disassembly of only the split cover plate and its related components without disassembling the steering gear when maintenance or replacement of components is required, greatly improving the convenience of disassembly and assembly. During maintenance or overhaul, the workload is reduced, the maintenance time is shortened, and the risks and costs caused by disassembling the steering gear are also reduced.

[0020] 2. The J-shaped sealing ring is arranged on the outer side of the split cover plate of the present invention, and the J-shaped sealing ring is arranged on the sealing bottom ring. By optimizing the sealing structure, it better prevents moisture, dirt, etc. from entering the rudder bearing interior, improving the reliability and service life of the rudder bearing.

[0021] 3. The bevel cutting design on the rudder bearing body of the present invention forms a guiding inclined plane at the tail of the rudder bearing body. When the rudder bearing body is inserted into the rudder bearing sleeve, the inclined plane can automatically guide the rudder bearing body into the sleeve, reducing the risk of jamming or collision caused by alignment deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural diagram of the present invention; Figure 2 is a top view of the present invention; Figure 3 Structural diagram of the split cover plate of the present invention Figure 4 Cross-sectional view of the rudder bearing body of the present invention

[0023] Drawing number: 1. Rudder bearing body, 2. Split cover plate, 3. Thrust ring, 4. Wear-resistant ring, 5. Bearing, 6. Rudder stock, 7. Groove, 8. Sealing ring, 9. J-shaped sealing ring, 10. Vacancy, 11. Assembly part, 12. Small clearance bolt, 13. Ordinary bolt, 14. First assembly hole, 15. Second assembly hole, 16. Ramp, 17. Fastener Ⅰ, 18. Oblique cut, 19. Fastener Ⅱ, 20. Fastener Ⅲ, 21. Accommodating groove, 22. Sealing cover plate, 23. Sealing bottom ring Specific implementation manner

[0024] As Figure 1 shown, the integral rudder bearing using the split cover plate mainly consists of a rudder bearing body 1, a thrust ring 3, a wear-resistant ring 4, and a split cover plate 2. The rudder bearing body 1 is fixed on the hull structure. There is a rudder stock 6 and a bushing 5 in the shaft hole of the rudder bearing body 1, and the bushing 5 is a steel bushing. The rudder bearing body 1 is fixed on the hull structure through anchor bolts and stop blocks. A wear-resistant ring 4 is arranged in the groove 7 on the end face of the rudder bearing body 1. The wear-resistant ring 4 is installed in the groove 7 through fasteners. The fasteners firmly fix the wear-resistant ring 4 in the groove 7, effectively preventing the wear-resistant ring 4 from loosening or shifting during operation, and improving the stability and reliability of the rudder bearing. A thrust ring 3 is arranged on the wear-resistant ring 4. The thrust ring 3 is installed on the bottom surface of the split cover plate 2 through fastener Ⅱ 19. When it is necessary to maintain or replace the thrust ring 3, it can be disassembled by simply loosening the fasteners, which is convenient for disassembly and maintenance. The split cover plate 2 is arranged on the thrust ring 3; a J-shaped sealing ring 9 is arranged on the outside of the split cover plate 2, and the J-shaped sealing ring 9 is arranged on the sealing bottom ring 23. There is a sealing cover plate 22 on the sealing bottom ring 23. The fastener Ⅰ 17 passes through the sealing cover plate 22, the sealing bottom ring 23 and the rudder bearing body 1 for connection. The fastener Ⅰ 17 uses a bolt

[0025] Among them, the split cover plate 2 is in the form of a forging, which bears the axial and radial loads and is equivalent to bearing the functions of the cover plate and the clamping ring in the current integral rudder bearing. The split cover plate 2 is connected to the thrust ring 3 by bolts. The thrust ring 3 contacts the wear-resistant ring 4 below, and the wear-resistant ring 4 is connected to the rudder bearing body 1 by bolts. The rudder bearing body 1 is fixed on the hull structure, thus realizing the function of bearing the weights of components such as the rudder blade and the rudder stock 6 as a whole. The integral rudder bearing structure of this application integrates the rudder bearing body 1, the thrust ring 3, the wear-resistant ring 4, and the split cover plate 2, removes the clamping ring, and improves the cover plate seal. Compared with the existing technologies, the manufacturing cost is greatly reduced, saving about 20,000 yuan in manufacturing cost per ship set, making the overall structure more compact, occupying less space, and being conducive to the rational utilization of the internal space of the ship. The wear-resistant ring 4 is arranged in the end face groove 7 of the rudder bearing body 1, and the thrust ring 3 is arranged on the wear-resistant ring 4. This design effectively reduces the wear of the rudder bearing during operation and extends the service life of the rudder bearing. In addition, in terms of installation and disassembly, it is more convenient than the current technical solution. The key is that it can achieve the purpose of replacing the rudder bearing accessories by disassembling the split cover plate 2 without disassembling the steering gear.

[0026] By adopting the design of arranging the assembly part 11 on the split cover plate 2 in this application, the material usage is reduced, the manufacturing process of the rudder bearing is simplified, and the overall manufacturing cost is reduced. When maintenance or component replacement is required, there is no need to disassemble the steering gear, and only the split cover plate 2 and its related components need to be disassembled, greatly improving the convenience of disassembly and assembly. During the maintenance or overhaul process, since there is no need to disassemble the steering gear from the hull, the workload is reduced, the maintenance time is shortened, and the risks and costs that may be brought by disassembling the steering gear are also reduced. Due to the convenient disassembly and assembly and the need not to disassemble the steering gear, maintenance personnel can complete the maintenance or component replacement work more quickly, improving the maintenance efficiency and reducing the ship's out-of-service time. In addition, a J-shaped sealing ring 9 is arranged on the outer side of the split cover plate 2. The J-shaped sealing ring 9 is arranged on the sealing bottom ring 23. By optimizing the sealing structure, it can better prevent moisture, dirt, etc. from entering the rudder bearing interior, improving the reliability and service life of the rudder bearing.

[0027] A receiving groove 21 is opened on the sealing bottom ring 23, and the J-shaped sealing ring 9 is arranged in the receiving groove 21. The receiving groove 21 provides an accurate installation position for the J-shaped sealing ring 9, ensuring that the J-shaped sealing ring 9 can closely fit between the sealing bottom ring 23 and the cooperating component, the split cover plate 2, forming a reliable sealing barrier and improving the sealing reliability of the rudder bearing. When the J-shaped sealing ring 9 is worn or damaged, it can be conveniently taken out from the receiving groove 21 and a new sealing ring can be replaced without disassembling the entire sealing structure, reducing the maintenance difficulty and cost.

[0028] The wear-resistant ring 4 is installed in the groove 7 through fasteners III 20, such as bolts, screws, etc. This design makes the installation and disassembly process simple and fast. When maintenance or replacement of the wear-resistant ring 4 is required, it can be taken out by simply loosening the fasteners, without the need for complex tools or operations. This convenient disassembly and assembly method helps to shorten the downtime of the ship and improve the operation efficiency.

[0029] As Figure 2 shown, the split cover plate 2 is in two halves. A vacancy 10 is dug on the split cover plate 2. The plate part on one side of the vacancy 10 forms an assembly part 11, and assembly holes one 14 and two 15 are arranged on the assembly part 11. By pre-digging the vacancy 10 and setting the assembly part 11 on each half, during installation, only the two half cover plates need to be aligned and fixed with bolts, without complex adjustment or calibration, significantly shortening the installation time. When maintenance or replacement of the components inside the rudder bearing is required, only the bolts need to be loosened and the two half cover plates are separated, then the internal components can be easily accessed without disassembling the steering gear, which is convenient for timely replacement of damaged seals and ensures the long-term stable operation of the rudder bearing.

[0030] As Figure 3 shown, the vacancy 10 has a slope 16. The slope 16 design makes the installation and disassembly operations of the split cover plate 2 easy and labor-saving, and at the same time can disperse the stress concentration phenomenon when the cover plate is stressed, making the stress distribution more uniform, improving the bearing capacity and service life of the cover plate. When maintenance or replacement of the components inside the rudder bearing is required, the slope 16 design can simplify the disassembly and installation process, reducing the maintenance time and workload.

[0031] As Figure 4 shown, a bevel cut 18 is provided at the tail of the rudder bearing body 1. The bevel cut 18 design makes the tail of the rudder bearing body 1 form a guiding inclined plane. When the rudder bearing sleeve is installed, the inclined plane can automatically guide the rudder bearing body 1 into the sleeve, reducing the risk of jamming or collision caused by alignment deviation.

[0032] When designing the form of the split cover plate 2, the bearing capacity and manufacturing cost are mainly considered. By software simulating the stress conditions of the components, it is ensured that the split cover plate 2 can meet the actual use requirements, and on the premise of ensuring the use requirements, the component weight and processing amount are reduced as much as possible to reduce the manufacturing cost. In addition, the split cover plate 2 is connected by two pairs of bolts, one of which is a common bolt 13 and the other is a small-clearance bolt 12. While ensuring the effective connection of the split cover plate 2, the installation convenience is improved, and the machining area also takes into account the space size for bolt installation.

[0033] In order to ensure that the split cover plate 2 can be disassembled smoothly without disassembling the steering gear, when designing the steering bearing body 1, the J-shaped sealing ring 9 on the outer side of the split cover plate 2 is designed to be detachable, and a sealing bottom ring 23 is added and connected to the steering bearing body 1 through bolts to achieve detachability. This can not only realize the disassembly of the split cover plate 2, but also greatly reduce the weight of the steering bearing body 1 and the manufacturing cost of the steering bearing body 1.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated rudder bearing using a split cover plate, characterized in that: It mainly consists of a rudder bearing body (1), a thrust ring (3), a wear-resistant ring (4), and a split cover plate (2). The rudder bearing body (1) is fixed on the hull structure. There is a rudder stock (6) and a bushing (5) in the shaft hole of the rudder bearing body (1). The rudder bearing body (1) is fixed on the hull structure through anchor bolts and stop blocks. A wear-resistant ring (4) is arranged in the groove (7) on the end face of the rudder bearing body (1). A thrust ring (3) is arranged on the wear-resistant ring (4), and a split cover plate (2) is arranged on the thrust ring (3); A J-shaped sealing ring (9) is arranged on the outside of the split cover plate (2). The J-shaped sealing ring (9) is arranged on a sealing bottom ring (23). There is a sealing cover plate (22) on the sealing bottom ring (23). The sealing bottom ring (23) is connected to the rudder bearing body (1) through fasteners I (17).

2. The integral rudder bearing using a split cover plate according to claim 1, characterized in that: The split cover plate (2) is in two halves. A vacancy (10) is dug on the split cover plate (2). The plate part on one side of the vacancy (10) forms an assembly part (11). Assembly holes one (14) and two (15) are arranged on the assembly part (11).

3. The integrated rudder bearing using a split cover plate according to claim 2, characterized in that: The vacancy (10) has a slope (16).

4. The integral rudder bearing using a split cover plate according to claim 1, characterized in that: An oblique cut (18) is arranged at the tail of the rudder bearing body (1).

5. The integral rudder bearing using a split cover plate according to claim 1, characterized in that: The thrust ring (3) is installed on the bottom surface of the split cover plate (2) through fasteners II (19).

6. The integral rudder bearing using a split cover plate according to claim 1, wherein: The wear-resistant ring (4) is installed in the groove (7) through fasteners III (20).

7. The integral rudder bearing using a split cover plate according to claim 1, characterized in that: A receiving groove (21) is opened on the sealing bottom ring (23), and a J-shaped sealing ring (9) is arranged in the receiving groove (21).

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