阅读说明：本技术 船尾导缆器底座 (Stern fairlead base ) 是由 刘红平 夏玉涛 吴定凡 郑祖中 赵文斌 马亚成 万正田 叶旭 冯伟 于 2021-01-11 设计创作，主要内容包括：本发明提供了一种船尾导缆器底座,船尾导缆器底座由多块等高的侧板以及与多块侧板顶边固定连接的顶板组成,各侧板的整条底边均垂直安装在甲板上；侧板由两块横向侧板以及连接在横向侧板之间的至少两块纵向侧板组成：横向侧板为梯形钢板,各纵向侧板的两端焊接在两块横向侧板之间,其中,两块横向侧板的纵向后侧边之间焊接有第一纵向侧板,且在两块横向侧板之间焊接有将两块横向侧板底边靠近舷侧的端部相连的第二纵向侧板；在两块横向侧板之间设置有至少一根扁钢加强筋,扁钢加强筋与第二纵向侧板呈十字交叉并焊接连接,且扁钢加强筋的上表面与顶板上表面焊接连接。本专利提供的导缆器底座可以有效改善应力分布,保证结构安全性。(The invention provides a stern fairlead base, which consists of a plurality of side plates with equal height and a top plate fixedly connected with the top edges of the side plates, wherein the whole bottom edge of each side plate is vertically arranged on a deck; the curb plate comprises two horizontal curb plates and two piece at least vertical curb plates of connection between horizontal curb plate: the transverse side plates are trapezoidal steel plates, two ends of each longitudinal side plate are welded between the two transverse side plates, a first longitudinal side plate is welded between the longitudinal rear side edges of the two transverse side plates, and a second longitudinal side plate which connects the end parts of the bottom edges of the two transverse side plates close to the side is welded between the two transverse side plates; at least one flat steel reinforcing rib is arranged between the two transverse side plates, the flat steel reinforcing ribs and the second longitudinal side plate are in cross and welded connection, and the upper surfaces of the flat steel reinforcing ribs and the upper surface of the top plate are in welded connection. The fairlead base that this patent provided can effectively improve stress distribution, guarantees structural security.)

1. A stern fairlead base, a stern fairlead base (10) is fixed at a stern side against board, a fairlead is fixed on the upper surface of the stern fairlead base (10), the stern fairlead base (10) is characterized by comprising a plurality of side plates with equal height and a top plate (20) fixedly connected with the top edges (11d) of the side plates, and the whole bottom edge of each side plate is vertically arranged on a deck;

the side plates consist of two transverse side plates (11) and at least two longitudinal side plates connected between the transverse side plates (11):

the two transverse side plates (11) are arranged in parallel and are vertical to the sailing direction of the ship, the transverse side plates (11) are trapezoidal steel plates, one end, close to a side, of the top edge (11d) of each transverse side plate (11) extends to the outer side of the side horizontally and is connected with the bottom edge (11a) through a bevel edge (11b),

the two ends of each longitudinal side plate are welded between the two transverse side plates (11), wherein a first longitudinal side plate (12) is welded between the longitudinal rear side edges (11c) of the two transverse side plates (11) far away from the side, and a second longitudinal side plate (13) which connects the end parts of the bottom edges (11a) of the two transverse side plates close to the side is welded between the two transverse side plates (11);

be provided with between two horizontal curb plates (11) at least one with equal length band steel strengthening rib (14) of horizontal curb plate (11) topside (11d), band steel strengthening rib (14) with vertical curb plate (13) of second is cross and welded connection, just the upper surface of band steel strengthening rib (14) with roof (20) upper surface welded connection.

2. A stern fairlead base as claimed in claim 1, characterised in that the said steel flat reinforcing bars (14) are welded at their partial bottom edges to the upper surface of the deck.

3. A stern fairlead base as claimed in claim 1, characterised in that the flat steel reinforcing bars (14) have a height which is less than the height of the side plates.

4. A stern fairlead base as claimed in claim 1, characterised in that the junction of the transverse side plates (11) and the longitudinal side plates is smoothly transitioned by a circular arc weld.

5. A stern fairlead base as claimed in claim 1, characterised in that the outboard edge of the roof (20) near the side is level with the side at maximum boat width.

6. A stern fairlead base as claimed in claim 1, characterised in that the first longitudinal side plate (12) and the second longitudinal side plate (13) are parallel and perpendicular to the two transverse side plates (11).

7. A stern fairlead base as claimed in claim 6, characterised in that the spacing between the first longitudinal side plate (12) and the second longitudinal side plate (13) is not less than 100 mm.

8. A stern fairlead base as claimed in claim 1, characterised in that the first longitudinal side plate (12) is perpendicular to the two transverse side plates (11), the second longitudinal side plate (13) being arranged with its rear side at the stern and the port side, and with its front side connected to the port side.

Technical Field

The invention relates to a ship fairlead, in particular to a stern fairlead base.

Background

Mooring equipment, such as fairleads, is often required on the vessel's aft deck or platform. Along with the linear rising of stern outsole, the interval of outer bottom plate and deck has constantly dwindled, has increased the degree of difficulty that the structure was arranged. In particular, the space between the deck and the outsole at the stern board side is particularly narrow, and at this time, the fairlead base placed thereon can be aligned only with the original strong member, otherwise, stress concentration occurs due to difficulty in arranging the fairlead base support structure, which causes structural damage to the hull. On the other hand, the stern side line is contracted toward the inside of the ship, and when the fairlead is arranged on the stern side, the cable is easily contacted and rubbed with the ship structure, and in order to avoid this, the fairlead base needs to be extended outboard so as to be flush with the maximum ship width. These all add to the difficulty of designing the fairlead base.

The current fairlead base is generally a closed box base, the structure of which is shown in fig. 1, the box base 1 being in the deck area. However, for the fairlead arranged on the stern side, the base of the fairlead needs to meet the following two requirements: on the one hand, to align the strong members to prevent structural damage and on the other hand, to extend outboard to the maximum beam width to prevent contact friction of the cable with the hull structure. Therefore, the closed box type base has no small defect when being installed at the stern.

Disclosure of Invention

The invention provides a stern fairlead base which is fixed at a stern board side, a fairlead is fixed on the upper surface of the stern fairlead base, the stern fairlead base is composed of a plurality of side plates with equal height and a top plate fixedly connected with the top edges of the side plates, and the whole bottom edge of each side plate is vertically arranged on a deck;

the lateral plate comprises two horizontal lateral plates and at least two longitudinal lateral plates connected between the horizontal lateral plates:

the two transverse side plates are arranged in parallel and are vertical to the sailing direction of the ship, the transverse side plates are trapezoidal steel plates, one end of the top edge of each transverse side plate, which is close to the side, horizontally extends to the outer side of the side and is connected with the bottom edge through a bevel edge,

the two ends of each longitudinal side plate are welded between the two transverse side plates, wherein a first longitudinal side plate is welded between the longitudinal rear side edges, far away from the side, of the two transverse side plates, and a second longitudinal side plate, which is used for connecting the end parts, close to the side, of the bottom edges of the two transverse side plates, is welded between the two transverse side plates;

at least one flat steel reinforcing rib which is as long as the top edge of the transverse side plate is arranged between the two transverse side plates, the flat steel reinforcing rib is in cross connection with the second longitudinal side plate and is in welded connection with the upper surface of the top plate, and the upper surface of the flat steel reinforcing rib is in welded connection with the upper surface of the top plate.

Furthermore, the local bottom edge of the flat steel reinforcing rib is connected with the upper surface of the deck in a welding mode.

Furthermore, the height of the flat steel reinforcing ribs is smaller than that of the side plates.

Furthermore, the joints of the transverse side plates and the longitudinal side plates adopt arc welding for smooth transition.

Further, the outer side edge of the top plate close to the side is flush with the side at the maximum ship width.

Further, the first longitudinal side plate and the second longitudinal side plate are parallel and perpendicular to the two transverse side plates.

Further, the distance between the first longitudinal side plate and the second longitudinal side plate is not less than 100 mm.

Furthermore, the first longitudinal side plate is perpendicular to the two transverse side plates, the rear side of the second longitudinal side plate is arranged at the junction of the stern and the ship board, and the front side of the second longitudinal side plate is connected to the ship board.

The base of the cable guider can be regarded as two parts, and firstly, a closed box type base is formed by two transverse side plates, a first longitudinal side plate and a second longitudinal side plate; and an open type extending mechanism extending towards the outboard side is arranged on one side of the box type base, and the open type extending mechanism extends the horizontal length of the top plate of the base of the cable guide so as to avoid the friction between the cable of the cable guide and the ship body. In order to ensure the strength of the top plate of the base of the cable guide device, the bottom of the top plate adopts an inclined supporting mechanism, and meanwhile, a plurality of flat steel reinforcing ribs which are in cross connection with the second longitudinal side are arranged on the lower surface of the top plate, so that the overall rigidity of the base of the cable guide device is further improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a view of a prior art mounting location of a box fairlead base at the stern;

FIG. 2 is a view of the aft mounted position of the fairlead base of the present invention;

FIG. 3 is a perspective view of an embodiment with the top plate of the fairlead base hidden to show the internal structure;

FIG. 4 is a schematic view corresponding to FIG. 3, in which two longitudinal side plates are arranged parallel to each other and perpendicular to the transverse side plates;

FIG. 5 is a front view of a transverse side panel showing the numbering of the various sides;

FIG. 6 is a schematic view of another embodiment in which the second longitudinal side panel is not disposed parallel to the first longitudinal side panel;

fig. 7 shows that the front and rear ends of the second longitudinal side plate are connected at the stern and the port boundary and the port side, respectively.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

Referring to fig. 2, the present invention provides a stern fairlead base, wherein a stern fairlead base 10 is fixed at a stern board side, a fairlead is fixed on the upper surface of the stern fairlead base 10, the stern fairlead base 10 is composed of a plurality of side plates with the same height and a top plate 20 fixedly connected with the top edges 11d of the side plates, and the whole bottom edge of each side plate is vertically arranged on a deck.

With further reference to fig. 3, the side plates of the stern fairlead base 10 are composed of two transverse side plates 11 and at least two longitudinal side plates connected between the transverse side plates 11: the two transverse side plates 11 are arranged in parallel and perpendicular to the ship sailing direction, the transverse side plates 11 are trapezoidal steel plates, one end, close to the side, of the top edge 11d of each transverse side plate 11 horizontally extends to the outside of the side and is connected with the bottom edge 11a through the inclined edge 11b, two ends of each longitudinal side plate are perpendicularly welded between the two transverse side plates 11, a first longitudinal side plate 12 is welded between the longitudinal rear side edges 11c, far away from the side, of the two transverse side plates 11, and a second longitudinal side plate 13, connected with the end, close to the side, of the bottom edge 11a of the two transverse side plates 11, is welded between the two transverse side plates 11. At least one flat steel reinforcing rib 14 with the same length as the top edge 11d of the transverse side plate 11 is arranged between the two transverse side plates 11, the flat steel reinforcing rib 14 and the second longitudinal side plate 13 are crossed and welded, and the upper surface of the flat steel reinforcing rib 14 is welded with the upper surface of the top plate 20.

The base of the cable guider is formed by upgrading and transforming based on the traditional box-type base, as can be seen in the figure, the base of the cable guider can be regarded as two parts, and firstly, the box-type base 10-1 with stronger rigidity is formed by two transverse side plates 11, a first longitudinal side plate 12 and a second longitudinal side plate 13; and secondly, an open type extending mechanism 10-2 extending towards the outboard side is arranged on one side of the box type base 10-1, and the open type extending mechanism 10-2 extends the horizontal length of the top plate 20 of the base of the stern fairlead so as to avoid the friction between the cable of the fairlead and the ship body. In order to ensure the strength of the top plate 20, an inclined support mechanism is adopted at the bottom of the top plate, namely two trapezoidal transverse side plates 11 are used for providing support for the outer side edge of the top plate 20, and meanwhile, a plurality of flat steel reinforcing ribs 14 which are in cross connection with the second longitudinal side plate 13 are arranged on the lower surface of the top plate 20, so that the overall rigidity of the base of the cable guide is further improved. Wherein, the open meaning of open type extension mechanism 10-2 is: there is no steel material connected between the bevel edges 11b of the two transverse side plates 11, that is, the bottom of the open-type extending mechanism 10-2 is in a hollow open type, so that the steel material can be saved, and the installation efficiency of the fairlead base can be improved.

Wherein, each side plate can adopt plane steel to reduce the processing cost.

In an alternative embodiment of the present invention, the local bottom edge of the flat steel reinforcing rib 14 is welded to the upper surface of the deck, which means that the height of the flat steel reinforcing rib 14 can be equal to the height of each side plate, so that the lower side edge of the flat steel reinforcing rib 14 in the deck area is welded to the upper surface of the deck, which can improve the strength. In order to reduce the installation difficulty and save the steel materials, the height of the flat steel reinforcing ribs 14 is smaller than that of the side plates, and although the bottom edges of the flat steel reinforcing ribs 14 are not in contact connection with the deck, a certain strength improving effect can be achieved.

In an optional embodiment of the invention, the connecting part of the transverse side plate 11 and the longitudinal side plate adopts arc welding smooth transition, so that the stress at the welding part can be dispersed, and the welding part is broken due to overlarge local stress of local right-angle welding.

In an alternative embodiment of the invention, the outboard edge of the top plate 20 near the side is level with the side at maximum boat width.

In an alternative embodiment of the present invention, the first longitudinal side plate 12 and the second longitudinal side plate 13 are parallel and perpendicular to the two transverse side plates 11, and the distance between the first longitudinal side plate 12 and the second longitudinal side plate 13 is not less than 100mm, as shown in fig. 4. In another alternative embodiment, the first longitudinal side plate 12 is perpendicular to the two transverse side plates 11, the second longitudinal side plate 13 is arranged at the rear side at the stern and side junction, and the front side is connected to the side, as shown in fig. 7.

The fairlead base that this patent provided can effectively improve stress distribution, guarantees structural security, avoids the use of bent plate simultaneously, reduces the construction degree of difficulty, and reduction in production cost improves economic benefits.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.