Split type watertight upper rudder bearing mounting structure of full-suspension rudder

Abstract

The embodiment of the invention provides a full-suspension rudder split type watertight upper rudder bearing mounting structure which comprises a rudder bearing seat, the rudder bearing seat is of an annular plate structure, the thickness of the rudder bearing seat is larger than that of a rudder cylinder, and the bottom end of the rudder bearing seat is welded and fixed to a steering engine deck; a certain gap is reserved between the cylinder part of the rudder bearing body and the rudder cylinder, a wing ring part at the top of the rudder bearing body abuts against the rudder bearing seat and is fixedly connected with the rudder bearing seat through a bolt, and a seam between the wing ring part of the rudder bearing body and the rudder bearing seat is sealed through a sealing assembly. According to the embodiment of the invention, the rudder bearing seat is arranged to ensure that the rudder bearing body can be mounted in the rudder cylinder in a clearance fit manner, and a traditional precise sliding fit manner between the rudder bearing and the rudder cylinder is replaced, so that enough mounting allowance exists between the rudder bearing body and the steering engine deck and between the rudder bearing body and the rudder cylinder, and the problem that the rudder cylinder is reworked and corrected due to deformation of the rudder cylinder is avoided; and the installation efficiency of the rudder bearing is improved.

Description

Technical Field

[0001] This invention relates to the field of ship outfitting technology, and in particular to a fully suspended rudder split watertight upper rudder bearing mounting structure. Background Technology

[0002] In fully suspended rudders, the upper rudder bearing is typically installed inside the rudder tube using a precision sliding fit, and the bearing body must fit tightly against the inner wall of the rudder tube. However, the rudder tube needs to be connected to the hull by welding, but due to the thin wall of the rudder tube, the high temperature of welding can easily cause deformation, affecting the installation of the upper rudder bearing. Therefore, it is necessary to perform a hot work on the rudder tube to restore its shape. However, hot work requires high precision and is quite difficult. Moreover, the high manufacturing and installation precision requirements of the rudder tube, to some extent, limit the installation efficiency of the upper rudder bearing. Summary of the Invention

[0003] In view of the above-mentioned problems existing in the prior art, the present invention provides a fully suspended rudder split watertight upper rudder bearing mounting structure to solve the technical problem of low upper rudder bearing installation efficiency in the prior art.

[0004] This invention provides a fully suspended rudder split watertight upper rudder bearing mounting structure, comprising:

[0005] The rudder bearing seat is a ring plate structure with a thickness greater than that of the rudder barrel, and its bottom end is welded and fixed to the rudder gear deck.

[0006] The rudder bearing body has a certain gap between its cylindrical part and the rudder barrel, and its top wing ring part abuts against the rudder bearing seat and is fixed by bolts. The joint between the wing ring part of the rudder bearing body and the rudder bearing seat is sealed by a sealing assembly.

[0007] In one embodiment, the bottom of the wing ring portion of the rudder bearing body is provided with a groove that matches the rudder bearing seat.

[0008] In one embodiment, the slot is located at the edge of the wing ring, with an opening at its outer end, and the outer edge of the rudder bearing seat is flush with the outer edge of the slot.

[0009] In one embodiment, the thickness of the rudder bearing seat is not less than 30 mm.

[0010] In one embodiment, the width of the rudder bearing seat is not less than three times the diameter of the bolt.

[0011] In one embodiment, the inner corner of the slot and the inner apex corner of the rudder bearing seat are set as matching rounded chamfers.

[0012] In one embodiment, the vertical depth of the slot is not less than half the thickness of the rudder bearing seat.

[0013] In one embodiment, the width of the gap between the cylindrical portion of the rudder bearing body and the rudder barrel is not less than the welding deformation of the rudder barrel.

[0014] In one embodiment, the sealing component is a sealing ring, which is disposed in a sealing groove opened on the top of the rudder bearing seat.

[0015] In one embodiment, a thrust block is provided on the outer side of the rudder bearing seat. The thrust block is welded to the rudder deck and abuts against the outer edge of the rudder bearing body wing ring.

[0016] Compared with the prior art, the beneficial effects of the fully suspended rudder split watertight upper rudder bearing installation structure provided by the embodiments of the present invention are as follows: By setting the rudder bearing seat, the embodiments of the present invention ensure that the rudder bearing body can be installed in the rudder tube in a clearance fit manner, replacing the traditional precision sliding fit between the rudder bearing and the rudder tube. This provides sufficient installation margin between the rudder bearing body and the rudder gear deck and the rudder tube, avoiding the problem of rudder tube rework due to rudder tube deformation, and improving the installation efficiency of the rudder bearing. At the same time, the opening of the slot can also effectively reduce the amount of cast steel used, which is conducive to the lightweight design of the upper rudder bearing and can also reduce the material cost of the upper rudder bearing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a fully suspended rudder split watertight upper rudder bearing mounting structure according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 Floor plan;

[0019] Figure 3 This is a schematic diagram of a fully suspended rudder split watertight upper rudder bearing mounting structure provided in another embodiment of the present invention;

[0020] Figure 4 for Figure 3 Floor plan;

[0021] Figure 5 for Figure 3 A magnified structural diagram of part A in the middle.

[0022] Figure label:

[0023] 1. Steering gear deck; 2. Steering cylinder; 3. Steering bearing seat; 4. Steering bearing body; 401. Cylinder section; 402. Wing ring section; 403. Slot; 5. Bolt; 6. Sealing ring; 7. Thrust block. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0026] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0027] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0028] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0029] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to ascertain the true intent based on the user's historical operations, and to avoid unnecessary or redundant details that would obscure this application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in various ways with substantially any suitable detailed structure.

[0030] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0031] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of the invention. The following description, in conjunction with... Figure 1-5 The preferred embodiments of the present invention will be described in further detail below:

[0032] like Figure 1-2 As shown, this embodiment of the invention provides a fully suspended rudder split watertight upper rudder bearing mounting structure, comprising:

[0033] The rudder bearing seat 3 is a ring plate structure with a thickness greater than that of the rudder barrel 2, and its bottom end is welded and fixed to the rudder gear deck 1.

[0034] The rudder bearing body 4 has a certain gap between its cylindrical part 401 and the rudder cylinder 2. Its top wing ring part 402 abuts against the rudder bearing seat 3 and is fixed by bolts 5. The joint between the wing ring part 402 and the rudder bearing seat 3 is sealed by a sealing assembly.

[0035] In one embodiment, the bottom of the wing ring portion 402 of the rudder bearing body 4 is provided with a groove 403 that matches the rudder bearing seat 3. The design of the groove 403 can, on the one hand, better achieve the positioning of the rudder bearing body 4 and ensure its installation accuracy, and on the other hand, ensure that the stress transfer between the rudder bearing seat 3 and the rudder bearing body 4 can be better realized, which can fully offset the influence of the shear stress generated by the rudder stock. Moreover, the groove 403 can also reduce the amount of cast steel used and effectively reduce the procurement cost.

[0036] In one embodiment, the slot 403 is located on the edge of the wing ring portion 402, with an open outer end. The outer edge of the rudder bearing seat 3 is flush with the outer edge of the slot 403. The open outer edge arrangement makes it easier to install the rudder bearing body 4. In addition, sufficient gaps can be left between the side surfaces of the rudder bearing body 4 and the rudder bearing seat 3 to avoid secondary processing problems caused by insufficient machining accuracy, and further realize quick installation.

[0037] In one embodiment, in order to avoid the rudder bearing seat 3 from affecting the installation of the rudder bearing body 4 due to welding deformation and to ensure the assembly accuracy of the two, the thickness of the rudder bearing seat 3 is not less than 30mm, wherein the rudder bearing seat 3 is made of finished steel that is not cast steel.

[0038] In one embodiment, the width of the rudder bearing seat 3 is not less than three times the diameter of the bolt 5, that is, the bolt 5 is inserted in the middle of the rudder bearing seat 3, and at least one bolt 5 diameter is reserved on both sides of the bolt 3 to ensure that the rudder bearing seat 3 can stably perform its function.

[0039] In one embodiment, multiple sets of positioning bolt holes are opened in a circular array on the rudder bearing seat 3. By applying a preload to the bolts 5, the rudder bearing body 4 and the rudder bearing seat 3 are connected, which offsets the bending moment between the two structures. At the same time, the bolts 5 only pass through the rudder bearing seat 3, which can avoid perforation damage to the rudder deck 1, thus ensuring the sealing effect inside the cabin and extending the service life of the rudder deck 1.

[0040] In one embodiment, the inner corner of the slot 403 and the inner apex of the rudder bearing seat 3 are set as matching rounded chamfers to avoid stress concentration at this location.

[0041] In one embodiment, the vertical depth of the slot 403 is not less than half the thickness of the rudder bearing seat 3 to ensure that the two have sufficient overlapping area to fully realize the stable transmission of stress.

[0042] In one embodiment, the width of the gap between the cylindrical part 401 of the rudder bearing body 4 and the rudder barrel 2 is not less than the welding deformation of the rudder barrel 2. That is, a sufficient gap is set between the inner wall of the rudder bearing body 4 and the rudder barrel 2 to avoid the deformation of the rudder barrel 2 during welding from affecting the installation of the rudder bearing body 4. Moreover, this can also reduce the precision requirements of the rudder barrel 2 in the manufacturing and installation stages, reduce the difficulty of the process and the cost. Furthermore, the gap between the two can be set between 5-10mm, which can not only ensure smooth installation and improve installation efficiency, but also ensure the structural stability after installation.

[0043] In one embodiment, the sealing component is a sealing ring 6, which is disposed in a sealing groove opened on the top of the rudder bearing seat 3. The sealing is achieved by setting the O-ring sealing ring 6, which can ensure the sealing effect and reduce the difficulty and cost of procurement. Of course, multiple sealing rings 6 can be set as needed according to the sealing performance requirements.

[0044] like Figure 3-5 As shown, in one embodiment, a thrust block 7 is provided on the outer side of the rudder bearing seat 3. The thrust block 7 is welded to the rudder gear deck 1 and abuts against the outer edge of the wing ring portion 402 of the rudder bearing body 4. Multiple sets of thrust blocks 7 are arranged at annular intervals. By providing thrust blocks 7, the influence of shear force generated by the rudder stock can be further offset.

[0045] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A full-suspension rudder split type watertight upper rudder bearing mounting structure, characterized by, The utility model relates to a rudder bearing structure, which comprises: a rudder bearing seat (3) with a ring plate structure, the thickness of which is greater than that of a rudder cylinder (2), and the bottom end of which is welded and fixed on a rudder engine deck (1); a rudder bearing body (4), the cylinder part (401) of which leaves a certain gap with the rudder cylinder (2), the top wing ring part (402) of which abuts against the rudder bearing seat (3) and is connected and fixed through bolts (5), and the joint between the wing ring part (402) of the rudder bearing body (4) and the rudder bearing seat (3) is sealed through a sealing assembly.

2. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The bottom of the wing ring part (402) of the rudder bearing body (4) is provided with a clamping groove (403) matched with the rudder bearing seat (3).

3. A full-suspension rudder split type watertight upper rudder bearing mounting structure according to claim 2, characterized in that: The clamping groove (403) is arranged at the edge of the wing ring part (402), the outer end of which is open, and the outer edge of the rudder bearing seat (3) is flush with the outer edge of the clamping groove (403).

4. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The thickness of the rudder bearing seat (3) is not less than 30 mm.

5. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The width of the rudder bearing seat (3) is not less than three times the diameter of the bolt (5).

6. A split type watertight upper rudder bearing mounting structure for a full-suspension rudder according to claim 2 or 3, characterized in that: The inner edge corner of the clamping groove (403) and the inner side top corner of the rudder bearing seat (3) are arranged as mutually matched circular arc chamfers.

7. A full-suspension rudder split type watertight upper rudder bearing mounting structure according to claim 6, characterized in that: The vertical depth of the clamping groove (403) is not less than half the thickness of the rudder bearing seat (3).

8. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The gap width between the cylinder part (401) of the rudder bearing body (4) and the rudder cylinder (2) is not less than the welding deformation amount of the rudder cylinder (2).

9. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The sealing assembly is a sealing ring (6) arranged in the sealing groove at the top of the rudder bearing seat (3).

10. The split type watertight upper rudder bearing mounting structure of full suspension rudder according to claim 1, characterized in that: The outer side of the rudder bearing seat (3) is provided with a thrust block (7) welded on the rudder engine deck (1), and the thrust block (7) abuts against the outer edge of the wing ring part (402) of the rudder bearing body (4).

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