CN212047774U - Rudder heel outer plate node structure with height difference - Google Patents
Rudder heel outer plate node structure with height difference Download PDFInfo
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- CN212047774U CN212047774U CN202020703802.XU CN202020703802U CN212047774U CN 212047774 U CN212047774 U CN 212047774U CN 202020703802 U CN202020703802 U CN 202020703802U CN 212047774 U CN212047774 U CN 212047774U
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Abstract
The utility model provides a rudder heel outer plate node structure with height difference, which comprises a first inner liner plate, a second inner liner plate, a plurality of first rudder heel outer plates, a plurality of second rudder heel outer plates, a transition plate and an outer liner plate; the first inner liner plate and the second inner liner plate are welded on the ship body and mutually matched to form a height drop position; the transition plate is welded with the first inner liner plate and the second inner liner plate and covers the height drop position, the transition plate is welded with the adjacent first rudder heel outer plate and the second rudder heel outer plate through the outer liner plate, and the shape of the first rudder heel outer plate and the shape of the second rudder heel outer plate adjacent to the transition plate are matched with the transition plate. The utility model discloses a heel planking node structure with altitude difference, through changing the original node design mode, individual form planking at the platform altitude difference place, the heel planking can be effectively continuous, avoids the appearance of stress concentration point; meanwhile, welding construction at the height difference position is avoided to the limit, damage is reduced to the greatest extent, and cracks are prevented.
Description
Technical Field
The utility model relates to a marine facilities field especially relates to a heel planking node structure that has difference in height.
Background
When a ship operates on the sea, the ship rudder heel with the height difference corresponds to the ship rudder heel, and the sudden change of the height cannot be avoided due to the fact that no connecting structure exists between the two outer plates at the junction of the rudder horn and the hull plate in the traditional design structure mode. Because the ship is influenced by external forces of steering, water flow and waves for a long time, stress at the position cannot be effectively transferred, stress concentration is generated, and therefore cracks are easily generated firstly, and the ship is damaged.
Relevant provisions in the prior art documents:
guidance for inspection, evaluation and repair of bulk carrier structures: "3.5.3.1 most cracks occur at the sites of stress concentration. "
Entry code for Steel vessel 2: the arrangement of the "1.2.5.1 main components should ensure an effective continuity of the structure, avoiding abrupt changes in section or height. When the components are butted up on both sides of the bulkhead or other main component, the positions of the components are ensured to be on the same straight line. "
Guidance for inspection, evaluation and repair of bulk carrier structures: "3.7.4.2 (2) longitudinal cracks where the structural discontinuity continues are due to additional stress concentrations caused by the structural discontinuity at the joint. "
The existing commercial ships have many problems, cracks are generated, and the damage of the outer plate of the rudder heel is caused.
Referring to fig. 1, in the prior art, at the position where the height difference occurs, the outer plate 1 of the rudder heel forms a high stress area a because there is no connecting structure between the two outer plates at the junction of the rudder horn and the hull plate, which cannot avoid sudden change of height and hard point. Simultaneously because false rudder structure space is narrow and small, can't get into inside during the construction and weld, the welding mode that adopts at present welds first liner plate 2 and second liner plate 3 for the inside first welding of heel, and polylith heel planking 1 pastes and carries out the pad welding processing on first liner plate 2 and second liner plate 3. For two adjacent heel outer plates 1 with height difference, at the position of the height difference of the heel high and low platforms, the welding quality of the first liner plate 2, the second liner plate 3 and the two adjacent heel outer plates 1 with height difference and the welding quality between the first liner plate 2 and the second liner plate 3 cannot be guaranteed. Meanwhile, two adjacent heel outer plates 1 with height difference cannot be effectively connected at the intersection of the upper platforms, so that a hard point is formed. Therefore, when the rudder heel is influenced by external forces of steering, water flow and waves, stress at the position cannot be effectively transferred, stress concentration is generated, and therefore cracks are easily generated firstly, and the ship is damaged.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a joint structure of a heel outer plate with height difference, which is characterized in that the heel outer plate can be effectively and continuously arranged by changing the original joint design mode and independently forming the outer plate at the position of the platform height difference, thereby avoiding the occurrence of stress concentration points; meanwhile, welding construction at the height difference position is avoided to the limit, damage is reduced to the greatest extent, and cracks are prevented.
In order to achieve the above object, the present invention provides a heel outer plate node structure with height difference, which comprises a first inner liner plate, a second inner liner plate, a plurality of first heel outer plates, a plurality of second heel outer plates, a transition plate and an outer liner plate; the first inner liner panel and the second inner liner panel are welded to a hull and cooperate with each other to form a height drop; the first rudder heel outer plate is welded on the outer surface of the first inner liner plate in parallel; the second rudder heel outer plate is welded on the outer surface of the second inner liner plate in parallel; the transition plate is welded with the first inner liner plate and the second inner liner plate and covers the height drop position, the transition plate is welded with the adjacent first heel outer plate and the adjacent second heel outer plate through the outer liner plate, and the shape of the first heel outer plate and the shape of the second heel outer plate adjacent to the transition plate are matched with the transition plate.
Preferably, the width of the first and second heel outer plates is equal; the distance between one side of the transition plate, which is adjacent to the first rudder heel outer plate, and the height drop is equal to or close to one half of the width of the first rudder heel outer plate.
Preferably, the distance between the side of the transition plate adjacent to the second heel outer plate and the height drop is equal to or close to 1.5 times the width of the second heel outer plate.
Preferably, the distance from the top of the transition plate to the height drop is more than 500 mm.
Preferably, two sides of the top of the transition plate form an external fillet respectively.
Preferably, the radius of the bullnose is greater than 100mm and less than a difference value, and the difference value is the distance between the side of the transition plate adjacent to the second heel outer plate and the height drop minus the width of the second heel outer plate.
Preferably, the transition plate forms a concave surface, and the concave surface comprises a first straight edge, a fillet and a second straight edge which are connected in sequence; the first straight edge is adjacent to the first rudder heel outer plate and is flush with the bottom edge of the first rudder heel outer plate; the fillet is adjacent the height drop and the second straight edge is adjacent the second inner spacer plate and parallel to the second outer heel plate.
Preferably, the radius of the fillet is more than 100mm and less than the distance between the side of the transition plate adjacent to the first heel outer plate and the height drop.
Preferably, the bottom edge of the first heel outer panel extends beyond the first inner liner panel and the second straight edge extends beyond the second inner liner panel.
Preferably, the distance between the bottom edge of the first heel outer plate and the distance between the second straight edge and the second inner liner plate is 25-50 mm.
The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:
the transition plate covers the height drop position, and the whole effective transition plate is added in the high-stress area of the rudder heel, so that the outer plate of the rudder heel can be effectively connected at the height drop position, and the stress concentration is effectively avoided; the transition plate is welded with the adjacent first rudder heel outer plate and the adjacent second rudder heel outer plate through the external liner plate, so that the welding area is far away from the height drop position, the construction is convenient, and the damage is reduced.
Drawings
FIG. 1 is a schematic view of a connection structure of a conventional heel outer plate and a hull;
fig. 2 is a schematic structural view of a heel outer plate node structure with a height difference according to an embodiment of the present invention.
Detailed Description
The following description of the preferred embodiment of the present invention will be given in detail with reference to the accompanying fig. 2, so as to better understand the functions and features of the present invention.
Referring to fig. 2, a heel outer plate node structure with a height difference according to an embodiment of the present invention includes a first inner liner plate 1, a second inner liner plate 2, a plurality of first heel outer plates 3, a plurality of second heel outer plates 4, a transition plate 5 and an outer liner plate 6; the first inner liner panel 1 and the second inner liner panel 2 are welded to a hull 7 and cooperate with each other to form a height drop 8; the first rudder heel outer plate 3 is welded on the outer surface of the first inner liner plate 1 in parallel; the second heel outer plate 4 is welded on the outer surface of the second inner liner plate 2 in parallel; the transition plate 5 is welded with the first inner liner plate 1 and the second inner liner plate 2 and covers a height drop position 8, the transition plate 5 is welded with the adjacent first rudder heel outer plate 3 and the second rudder heel outer plate 4 through the outer liner plate 6, and the shape of the first rudder heel outer plate 3 and the shape of the second rudder heel outer plate 4 adjacent to the transition plate 5 are matched with the transition plate 5.
In the embodiment, the width of the first rudder heel outer plate 3 is equal to that of the second rudder heel outer plate 4; the distance L1 between the side of the transition plate 5 adjacent to the first heel outer plate 3 and the height drop 8 is equal to or close to one half of the width of the first heel outer plate 3.
If the distance L1 between one side of the transition plate 5 adjacent to the first rudder heel outer plate 3 and the height drop position 8 is too close to the height drop position 8, the high stress area cannot be avoided, and the distance L1 between the side of the transition plate 5 adjacent to the first rudder heel outer plate 3 and the height drop position 8 is too close to the width of the first rudder heel outer plate 3, the bottom of the first rudder heel outer plate 3 adjacent to the second rudder heel outer plate 4 can form a too thin narrow strip plate, construction is not facilitated, and meanwhile, the distance L1 between one side of the transition plate 5 adjacent to the first rudder heel outer plate 3 and the height drop position 8 exceeds the width of the first rudder heel outer plate 3, so that the inner space cannot.
The distance between the side of the transition plate 5 adjacent to the second rudder heel outer plate 4 and the height drop 8 is equal to or close to 1.5 times the width of the second rudder heel outer plate 4.
The one side of crossing cab apron 5 neighbouring second heel planking 4 and the distance of height drop department 8, if too be close to the width of second heel planking 4, be unfavorable for the welding construction, and too be close to the width of 2 times second heel planking 4, then can form thin narrow slat with the adjacent second heel planking 4 bottom of first heel planking 3, be unfavorable for the construction, cross the width that one side of cab apron 5 neighbouring second heel planking 4 and height drop department 8 surpass 2 times second heel planking 4 and can cause the unable construction of inner space.
The distance H from the top of the transition plate 5 to the height drop part 8 is far away from the height drop part 8 of the high stress area as far as possible and is more than 500 mm.
Two sides of the top of the transition plate 5 form a bullnose 51.
To ensure a smooth transition, the radius of the bullnose 51 is greater than 100mm and less than a difference L2, where the difference L2 is the distance between the side of the transition plate 5 adjacent to the second heel outer plate 4 and the height drop 8 minus the width of the second heel outer plate 4.
The transition plate 5 forms a concave surface 52, and the concave surface 52 comprises a first straight edge 521, a fillet 522 and a second straight edge 523 which are connected in sequence; the first straight edge 521 is adjacent to the first heel outer plate 3 and is flush with the bottom edge of the first heel outer plate 3; the fillet 522 is adjacent the height drop 8 and the second straight edge 523 is adjacent the second inner shim plate 2 and parallel to the second heel outer plate 4.
To ensure a smooth transition, the radius of the fillet 522 is greater than 100mm and less than the distance L1 between the side of the transition plate 5 adjacent to the first rudder heel outer plate 3 and the height drop 8.
In order to ensure an effective arc transition between the first rudder heel outer plate 3 and the transition plate 5, the bottom edge of the first rudder heel outer plate 3 extends beyond the first inner liner plate 1, and the second straight edge 523 extends beyond the second inner liner plate 2.
The range of the distance T1 that the bottom edge of the first heel outer plate 3 exceeds the first inner liner plate 1 and the distance T2 that the second straight edge 523 exceeds the second inner liner plate 2 is 25-50 mm.
The utility model provides a have difference in height's rudder heel planking node structure, through changing original node structure, set up the transition plate 5 of individual form in height difference department 8, let first rudder heel planking 3 and second rudder heel planking 4 can be effectively continuous, avoid the appearance of stress concentration point; meanwhile, the welding construction at the height drop position 8 is avoided to the limit, the damage is reduced as much as possible, and the generation of cracks is prevented.
The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.
Claims (10)
1. A heel outer plate node structure with height difference is characterized by comprising a first inner liner plate, a second inner liner plate, a plurality of first heel outer plates, a plurality of second heel outer plates, a transition plate and an outer liner plate; the first inner liner panel and the second inner liner panel are welded to a hull and cooperate with each other to form a height drop; the first rudder heel outer plate is welded on the outer surface of the first inner liner plate in parallel; the second rudder heel outer plate is welded on the outer surface of the second inner liner plate in parallel; the transition plate is welded with the first inner liner plate and the second inner liner plate and covers the height drop position, the transition plate is welded with the adjacent first heel outer plate and the adjacent second heel outer plate through the outer liner plate, and the shape of the first heel outer plate and the shape of the second heel outer plate adjacent to the transition plate are matched with the transition plate.
2. The heel outer plate node structure with the height difference according to claim 1, wherein the first heel outer plate and the second heel outer plate are equal in width; the distance between one side of the transition plate, which is adjacent to the first rudder heel outer plate, and the height drop is equal to or close to one half of the width of the first rudder heel outer plate.
3. The differential height rudder heel outer plate node structure according to claim 2, wherein the distance between the side of the transition plate adjacent to the second rudder heel outer plate and the height drop is equal to or close to 1.5 times the width of the second rudder heel outer plate.
4. The heel outer plate node structure with height difference according to claim 3, wherein the distance from the top of the transition plate to the height difference is more than 500 mm.
5. The heel outer plate node structure with the height difference according to claim 4, wherein two sides of the top of the transition plate form an external fillet.
6. The heel outer plate node structure with the height difference according to claim 5, wherein the radius of the bullnose is greater than 100mm and less than a difference value, and the difference value is the distance between the side of the transition plate adjacent to the second heel outer plate and the height drop minus the width of the second heel outer plate.
7. The heel outer plate node structure with height difference according to claim 6, wherein the transition plate forms a concave surface, and the concave surface comprises a first straight edge, a fillet and a second straight edge which are connected in sequence; the first straight edge is adjacent to the first rudder heel outer plate and is flush with the bottom edge of the first rudder heel outer plate; the fillet is adjacent the height drop and the second straight edge is adjacent the second inner spacer plate and parallel to the second outer heel plate.
8. The heel outer plate node structure with the height difference as claimed in claim 7, wherein the radius of the fillet is greater than 100mm and less than the distance between the side of the transition plate adjacent to the first heel outer plate and the height drop.
9. The differential height rudder heel outer plate node structure as claimed in claim 8, wherein the bottom edge of the first rudder heel outer plate is beyond the first inner spacer plate and the second straight edge is beyond the second inner spacer plate.
10. The rudder heel outer plate node structure with the difference in height according to claim 9, wherein the distance by which the bottom edge of the first rudder heel outer plate exceeds the first inner spacer plate and the distance by which the second straight edge exceeds the second inner spacer plate are in the range of 25 to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703802.XU CN212047774U (en) | 2020-04-30 | 2020-04-30 | Rudder heel outer plate node structure with height difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020703802.XU CN212047774U (en) | 2020-04-30 | 2020-04-30 | Rudder heel outer plate node structure with height difference |
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| Publication Number | Publication Date |
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| CN212047774U true CN212047774U (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020703802.XU Active CN212047774U (en) | 2020-04-30 | 2020-04-30 | Rudder heel outer plate node structure with height difference |
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| CN (1) | CN212047774U (en) |
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2020
- 2020-04-30 CN CN202020703802.XU patent/CN212047774U/en active Active
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