Plane friction watertight upper rudder bearing
By using limit blocks and height adjustment blocks to fix the friction plates in the rudder bearing and designing a split friction module, the problem of rudder bearing failure caused by the breakage of friction plate bolts in the prior art is solved, and the shear stress resistance and maintenance convenience are improved.
Patent Information
- Application Number
- CN202510155233.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-05-09
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the friction plate in the rudder bearing is fixed with bolts, which causes excessive shear force to be generated during the operation of the rudder system, which can easily lead to the bolt breakage, which in turn causes lubricating oil to be unable to be supplied and causes rudder bearing failure.
The planar friction watertight upper rudder bearing design is adopted, and the friction plate is fixed through the coordination between the limit block and the height adjustment block, which increases the shear stress resistance. The design of the split friction module allows partial replacement and avoids comprehensive friction plate replacement.
It significantly improves the shear stress resistance of the friction plate, reduces the possibility of failure, and reduces the cost of the friction plate, making it easier to maintain and replace.
Smart Images
Figure CN119957614A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of rudder bearings, in particular to a plane friction watertight upper rudder bearing. Background Art
[0002] The rudder bearing is a bearing used to support the rudder stock in the ship's rudder device. It can not only ensure that the rudder stock does not fall into the water, but also help the rudder stock to rotate and play a lubricating role.
[0003] In the prior art, the friction plate in the rudder bearing is fixed by bolts. When the rudder system is operated, the external force generates excessive shear force on the bolts, which easily leads to the bolts breaking. This causes the through hole on the friction plate to be misaligned with the oil filling hole on the rudder bearing body, and the lubricating oil cannot be supplied, which eventually leads to the problem that the rudder bearing must be disassembled and reinstalled and the friction plate must be replaced. Summary of the invention
[0004] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art that the friction plate is fixed by bolts, excessive shear force may easily lead to bolt breakage, thereby causing the rudder bearing to be prone to failure, the present invention provides a flat friction watertight upper rudder bearing.
[0005] The technical solution to be adopted by the present invention to solve its technical problems is: a plane friction watertight upper rudder bearing, comprising a rudder bearing frame, a friction plate and a rudder bearing body, a bushing matched with a rudder stock is arranged in a hole of the rudder bearing body, a watertight filler is also arranged below the bushing, the upper surface of the rudder bearing body has a plurality of radially arranged limit blocks, the friction plate comprises a plurality of fan-shaped friction modules, the friction module is embedded between two adjacent limit blocks, the upper surface of the rudder bearing body is provided with an annular locking claw attached to the outer side of the friction module, the upper surface of the rudder bearing body is provided with a plurality of first embedding grooves, the lower surface of the friction module is provided with a plurality of second embedding grooves, the positions and numbers of the first embedding grooves and the second embedding grooves correspond one to one, a height adjustment block is arranged between the first embedding groove and the second embedding groove, a through hole is arranged on the friction module, a plurality of oil injection holes matched with the through hole are arranged on the rudder bearing body, an oil cup or an oil pipe joint is arranged at the oil injection hole, and a rudder bearing frame is arranged on the friction plate.
[0006] The annular friction plate is divided into a plurality of fan-shaped friction modules, and the divided friction modules are inserted between the limit blocks, thereby preventing the friction plate from rotating. The friction module is fixed on the rudder bearing body by the cooperation of the height adjustment block with the first embedding groove and the second embedding groove. The annular locking claw is conducive to the position selection when installing the friction module, and the external support of the friction module increases the resistance to shear force. The friction module is inserted between the limit blocks, and the shear stress resistance can be increased several times compared with the case of fixing with bolts. Since the friction plate is split, when local damage or uneven wear occurs, only the friction module of the corresponding part needs to be replaced. Since the wear degree of the newly replaced friction module is different from that of the old friction module, the thickness of the new friction module is generally thicker. In order to make the upper surface of the friction plate flush, the newly replaced friction module needs to be used with a lower height adjustment block. The rudder bearing body can be lubricated by an oil cup or a butter pump. When a butter pump is used for lubrication, an oil pipe joint is used to replace the oil cup, and the oil pipe joint and the butter pump are connected by an oil pipe to lubricate the rudder bearing body and the friction plate. A through hole is provided on the friction module to facilitate the smooth movement of lubricating oil from the lower surface of the friction plate to the upper surface.
[0007] Furthermore, the rudder bearing frame is provided with a wear pointer, and the rudder bearing body is provided with a wear scale plate matched with the wear pointer. The wear condition of the friction plate can be understood through the cooperation between the wear pointer and the wear scale plate. When the wear pointer is skewed, it indicates that there is local damage or uneven wear, and the friction module needs to be repaired and replaced in time.
[0008] Furthermore, at least two openings for prying with a crowbar are provided on the side wall of the height adjustment block. When the friction module is removed from the rudder bearing body, the height adjustment block is embedded in the first embedding groove or the second embedding groove, and the height adjustment block is taken out by cooperating with the crowbar and the openings. After replacing a new friction module, a height adjustment block of a suitable height is selected and knocked into the first embedding groove again, and then the new friction module is installed on the rudder bearing body, and the new friction module is installed in place with a rubber hammer to ensure that the upper surfaces of each friction module are flush.
[0009] Furthermore, an oil mark is provided on the side wall of the annular locking claw, and a dust shield is provided on the upper end of the annular locking claw.
[0010] Furthermore, in order to enable the lubricating oil to move smoothly from the lower surface to the upper surface of the friction plate, an annular groove is provided on the upper surface of the friction plate, and a plurality of radial grooves are provided on the friction plate. The radial grooves intersect with the annular grooves, and the through hole is provided at the intersection of the annular groove and the radial groove.
[0011] Furthermore, at least one of the radial grooves extends to the outside of the friction module to form an oil outlet.
[0012] The beneficial effects of the present invention are as follows: a planar friction watertight upper rudder bearing provided by the present invention adopts a limit block and a height adjustment block to cooperate with each other to fix the friction plate. Compared with the case of fixing with bolts, the shear stress resistance can be increased several times; when a local friction module is damaged, only the corresponding friction module needs to be replaced, and the newly replaced friction module can be used with a height adjustment block with a lower height according to the wear condition of the remaining old friction modules that do not need to be replaced, so that the overall upper surface of the friction plate is flush, avoiding the replacement of all friction modules, and saving the use cost of the friction plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0014] Figure 1 It is a structural schematic diagram of the best embodiment of the present invention; Figure 2 It is a schematic diagram of the coordination between the wear pointer and the wear scale plate; Figure 3 is a top view of the rudder bearing body; Figure 4 It is a schematic diagram of the structure of the friction plate; Figure 5 It is a schematic diagram of the structure of the friction plate; Figure 6 It is a structural schematic diagram of the height adjustment block.
[0015] In the figure: 1, rudder bearing frame, 2, friction plate, 21, friction module, 22, second embedding groove, 23, through hole, 24, annular groove, 25, radial groove, 26, oil outlet, 3, rudder bearing body, 31, limit block, 32, annular locking claw, 33, first embedding groove, 34, oil filling hole, 4, bushing, 5, watertight packing, 6, height adjustment block, 61, prying mouth, 7, oil pipe joint, 8, wear pointer, 9, wear scale plate, 10, oil mark. DETAILED DESCRIPTION
[0016] The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.
[0017] like Figure 1-6As shown, a plane friction watertight upper rudder bearing of the present invention comprises a rudder bearing frame 1, a friction plate 2 and a rudder bearing body 3, a bushing matched with the rudder stock is arranged in the hole of the rudder bearing body 3, a watertight filler 5 is also arranged below the bushing, the upper surface of the rudder bearing body 3 has a plurality of radially arranged limit blocks 31, the friction plate 2 comprises a plurality of sector-shaped friction modules 21, the friction modules 21 are embedded between two adjacent limit blocks 31, the upper surface of the rudder bearing body 3 is provided with an annular locking claw 32 attached to the outer side of the friction module 21, and the upper surface of the rudder bearing body 3 is provided with a There are multiple first embedding grooves 33, and multiple second embedding grooves 22 are provided on the lower surface of the friction module 21. The positions and quantities of the first embedding grooves 33 and the second embedding grooves 22 correspond to each other. A height adjustment block 6 is provided between the first embedding groove 33 and the second embedding groove 22. The height adjustment block 6 is interference fit with the first embedding groove 33 and the second embedding groove 22. A through hole 23 is provided on the friction module 21, and multiple oil injection holes 34 matching with the through hole 23 are provided on the rudder bearing body 3. An oil cup or an oil pipe joint 7 is provided at the oil injection hole 34, and a rudder bearing frame 1 is provided on the friction plate 2.
[0018] The rudder bearing frame 1 is provided with a wear pointer 8, and the rudder bearing body 3 is provided with a wear scale plate 9 that matches the wear pointer 8. After the rudder bearing is installed, the wear pointer 8 should be aligned with the zero position of the wear scale plate 9.
[0019] Two oppositely disposed side walls of the height adjustment block 6 are each provided with two prying openings 61 for cooperating with a pry bar. The side walls of the height adjustment block 6 are provided with scales for marking the height of the height adjustment block 6 .
[0020] An oil mark 10 is disposed on the side wall of the annular locking claw 32 , and a dust shield is disposed on the upper end of the annular locking claw 32 .
[0021] The upper surface of the friction plate 2 is provided with an annular groove 24, and the friction plate 2 is provided with a plurality of radial grooves 25, the radial grooves 25 intersecting with the annular groove 24, and the through hole 23 is provided at the intersection of the annular groove 24 and the radial groove 25, so that the lubricating oil can flow and be applied to the entire surface of the friction plate 2. One of the radial grooves 25 extends to the outside of the friction module 21 to form an oil outlet 26.
[0022] Working process: When installing the friction module 21, first knock the height adjustment block 6 into the first embedding groove 33, then match the position of the friction module 21 with the height adjustment block 6, and knock the upper end of the height adjustment block 6 into the second embedding groove 22. The two sides of the friction module 21 are against the limit blocks 31, and the outer side is against the annular locking claw 32, thereby preventing the friction plate 2 from rotating.
[0023] Since the friction plate 2 is split, when there is local damage or uneven wear, only the friction module 21 of the corresponding part needs to be replaced. Since the wear degree of the newly replaced friction module 21 is different from that of the old friction module 21, the new friction module 21 is generally thicker. In order to make the upper surface of the friction plate 2 flush, the newly replaced friction module 21 needs to be used with a lower height adjustment block 6.
[0024] Directions and references (e.g., up, down, left, right, etc.) in the present invention may only be used to assist in the description of features in the accompanying drawings. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.
[0025] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the scope of the present invention through the above description. The technical scope of this invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A plane friction watertight upper rudder bearing, characterized in that: The invention comprises a rudder bearing frame (1), a friction plate (2) and a rudder bearing body (3); a bushing matching with the rudder stock is arranged in a hole of the rudder bearing body (3); a watertight filler (5) is arranged below the bushing; the upper surface of the rudder bearing body (3) has a plurality of radially arranged limit blocks (31); the friction plate (2) comprises a plurality of sector-shaped friction modules (21); the friction modules (21) are embedded between two adjacent limit blocks (31); the upper surface of the rudder bearing body (3) is provided with an annular locking claw (32) attached to the outer side of the friction module (21); the upper surface of the rudder bearing body (3) A plurality of first embedding grooves (33) are provided, a plurality of second embedding grooves (22) are provided on the lower surface of the friction module (21), the positions and numbers of the first embedding grooves (33) and the second embedding grooves (22) correspond one to one, a height adjustment block (6) is provided between the first embedding groove (33) and the second embedding groove (22), a through hole (23) is provided on the friction module (21), a plurality of oil injection holes (34) cooperating with the through holes (23) are provided on the rudder bearing body (3), an oil cup or an oil pipe joint (7) is provided at the oil injection hole (34), and a rudder bearing frame (1) is provided on the friction plate (2).
2. A plane friction watertight upper rudder bearing as claimed in claim 1, characterized in that: The rudder support frame (1) is provided with a wear pointer (8), and the rudder support body (3) is provided with a wear scale plate (9) that cooperates with the wear pointer (8).
3. A plane friction watertight upper rudder bearing as claimed in claim 1, characterized in that: At least two prying openings (61) for cooperating with a pry bar are provided on the side wall of the height adjustment block (6).
4. A plane friction watertight upper rudder bearing as claimed in claim 1, characterized in that: An oil mark (10) is provided on the side wall of the annular locking claw (32), and a dust shield is provided on the upper end of the annular locking claw (32).
5. A plane friction watertight upper rudder bearing as claimed in claim 1, characterized in that: An annular groove (24) is provided on the upper surface of the friction plate (2), a plurality of radial grooves (25) are provided on the friction plate (2), the radial grooves (25) intersect with the annular groove (24), and the through hole (23) is provided at the intersection of the annular groove (24) and the radial groove (25).
6. A plane friction watertight upper rudder bearing as claimed in claim 5, characterized in that: At least one of the radial grooves (25) extends to the outside of the friction module (21) to form an oil outlet (26).