CN112606947A

CN112606947A - Reinforced structure of many cable conductors ware base

Info

Publication number: CN112606947A
Application number: CN202110033786.7A
Authority: CN
Inventors: 郑祖中; 吴定凡; 刘红平; 夏玉涛; 高峰; 赵文斌; 华康; 马亚成; 万正田
Original assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Current assignee: Shanghai Merchant Ship Design and Research Institute of CSSC No 604 Research Institute
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-04-06

Abstract

The invention provides a reinforcing structure of a multi-cable guide base, which is provided with at least two reinforcing plates connected between adjacent cable guide bases, wherein the reinforcing plates are vertically welded on the surface of a deck, and two ends of each reinforcing plate are welded and fixed with the side walls of the cable guide bases; the upper surface of each reinforcing plate is provided with a concave semi-oval-shaped groove, and the semi-oval-shaped groove is formed by arc edges close to the cable guide bases on the two sides and a horizontal straight edge connecting the two sections of arcs; the two arbitrary reinforcing plates between two fairlead bases are connected through the steel bar reinforcement, the steel bar cross-section is right triangle, the side and the bottom of the steel bar which are mutually right-angled sides are respectively welded with the fairlead base side wall and the deck. The reinforcing structure can effectively improve the rigidity between the small-spacing cable guide bases, effectively improve the stress distribution of the angular points of the base of the cable guide hole, reduce the plate thickness of the base of the cable guide, reduce the production cost and have more attractive appearance.

Description

Reinforced structure of many cable conductors ware base

Technical Field

The invention relates to a ship cable guider, in particular to a reinforcing structure of a base of a multi-cable guider.

Background

A marine fairlead typically needs to be placed on the fairlead base 1. The conventional fairlead base 1 is a rectangular box-shaped structure without a bottom plate, and in order to ensure the strength of the conventional fairlead base 1, flat steel reinforcing ribs 2 are arranged on the lower surface of the bottom plate of the fairlead base 1, as shown in fig. 1. Generally, the base of the cable guider is short, namely the height of the base is less than 300mm, and the safety of the base of the cable guider can be effectively ensured during mooring operation. When the deck platform for placing the cable guide hole is low or the requirement on equipment collision avoidance is met, the height of the base of the cable guide device needs to be increased, sometimes to 600mm-1000mm, as shown in fig. 2. During mooring operation, a large stress concentration is generated at the corner point of the base of the fairlead due to bending, and the stress concentration point is as shown in fig. 3, which can cause structural damage in severe cases. In order to solve the problem, the conventional solution is to increase the strength by increasing the plate thickness of the fairlead base, the strength increasing effect is not ideal when the conventional solution is used, and the strength increasing effect is not proportional to the cost of the increased fairlead base, so that the reinforcement mode of the fairlead base needs to be optimized again.

Disclosure of Invention

The invention provides a reinforcing structure of a plurality of cable guide bases, wherein the cable guide bases are welded on the surface of a deck in rows, the cable guide bases are of a closed bottom-plate-free vertical box body structure welded on the deck, the height of each cable guide base is 0.6-1m, a distance smaller than 1m is reserved between every two adjacent cable guide bases, flat steel reinforcing ribs are arranged on the lower surfaces of top plates of the cable guide bases,

the reinforcing structure is provided with at least two reinforcing plates connected between adjacent cable guide bases, the reinforcing plates are vertically welded on the upper surface of the deck, and two ends of each reinforcing plate are welded and fixed with the side walls of the cable guide bases;

the upper surface of each reinforcing plate is provided with a concave semi-oval groove, each semi-oval groove is formed by an arc edge close to the cable guide bases on two sides and a horizontal straight edge connecting two sections of arcs, the radius of each arc is larger than 100mm, and the distance between the lower surface of each reinforcing plate and the lowest position of each shallow groove is at least 50 mm;

the steel bars are connected between any two reinforcing plates between the two cable guide bases in a reinforcing mode through steel bars, the cross sections of the steel bars are right-angled triangles, and the side edges and the bottom edges of the steel bars which form right-angled edges are respectively connected with the side walls of the cable guide bases and the deck in a welding mode.

Further, the reinforcing plate is a hollow beam with a partition plate arranged inside, and the partition plate is a vertical plate in the hollow beam.

Furthermore, a hollow beam is connected between any two reinforcing plates between the two fairlead bases, the end part of the hollow beam is connected to the reinforcing plate positioned below the horizontal straight edge, and the bottom edge of the hollow beam is welded with the deck;

the height of the hollow beam is less than 50 mm.

Furthermore, the reinforcing plate is welded and fixed with the side walls of the deck and the cable guide base in a full-length welding mode;

the steel bars are fixedly connected with the deck, the side wall of the base of the cable guide and the reinforcing plate in a full-welding mode;

the hollow beam is fixedly connected with the deck in a full-length welding mode.

The patent provides a fairlead base connection method, when two fairlead base distances are close (less than 1m), the fairlead base connected according to the method can effectively improve the stress distribution of the fairlead base angular point, reduce the plate thickness of the fairlead base, reduce the production cost, and simultaneously, the appearance is more beautiful.

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 schematic view of a 0.3m high fairlead base of the prior art, with flat steel reinforcing ribs provided on the lower surface of the top plate;

FIG. 2 is a schematic view of a fairlead base having a height of 0.6 m;

FIG. 3 is a schematic view of a stress concentration corner at the junction of the side wall of the fairlead base and the deck;

FIG. 4 is a side view of an embodiment of the present invention with a reinforcing structure connected between two fairlead bases;

FIG. 5 is a perspective view of FIG. 4;

FIG. 6 is a side sectional view of the embodiment of FIG. 4, wherein a hollow steel plate is further connected between the two reinforcing plates;

fig. 7 is a perspective view of fig. 6.

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.

The present invention provides a reinforcing structure of a multiple fairlead base 1, as shown in fig. 4-5, a plurality of fairlead bases 1 are welded on the upper surface of a deck in a straight line. The cable guide base 1 is of a closed bottom-plate-free square box structure welded on a deck, the height of the cable guide base 1 is 0.6-1m, a distance smaller than 1m is reserved between every two adjacent cable guide bases 1, and flat steel reinforcing ribs 2 are arranged on the lower surface of a top plate of the cable guide base 1.

The reinforcing structure is provided with at least two reinforcing plates 10 connected between adjacent fairlead bases 1, the reinforcing plates 10 are vertically welded on the surface of a deck, and two ends of each reinforcing plate are welded and fixed with the side walls of the fairlead bases 1; the upper surface of each reinforcing plate 10 is provided with a concave semi-oval-shaped groove, the semi-oval-shaped groove is formed by arc edges close to the cable guide bases 1 on the two sides and a horizontal straight edge connecting the two sections of arcs, the radius R of the arcs is larger than 100mm, and the distance H between the lower surface of each reinforcing plate 10 and the lowest position of the shallow groove is at least 50 mm. The two arbitrary reinforcing plates 10 between two fairlead bases 1 are connected through the enhancement of billet 11, and the billet 11 cross-section is right triangle, and the side and the base that the billet 11 becomes the right angle limit each other are welded connection with fairlead base 1 lateral wall and deck respectively.

It should be noted that two reinforcing plates 10 are arranged between two fairlead bases 1 as shown in fig. 4-7, and in practical cases, the number of reinforcing plates 10 can be increased according to requirements to further improve the strength. In an alternative embodiment, the semi-kidney shaped grooves may be replaced with semi-circular or semi-elliptical shaped grooves.

In an alternative embodiment of the invention, the reinforcing plate 10 is a hollow beam with a partition provided therein, the partition being a vertical plate within the hollow beam. The hollow reinforcing plate 10 with the partition plates has high strength and light weight, and reduces the weight burden on the hull on the premise of reinforcing the base of the cable guide.

In an alternative embodiment of the present invention, as shown in fig. 6 to 7, a hollow steel plate 12 is further connected between any two reinforcing plates 10 between the two fairlead bases 1, and the two reinforcing plates 10 are connected by the hollow steel plate 12, so as to further improve stability. Wherein, the end of the hollow steel plate 12 is connected to the reinforcing plate 10 below the horizontal straight edge, and the bottom edge of the hollow steel plate 12 is welded with the deck; the hollow steel plate 12 has a height of less than 50mm so as to be lower than the groove of the reinforcing plate.

In an optional embodiment of the invention, the reinforcing plate 10 is welded and fixed with the side walls of the deck and the fairlead base 1 in a full-length welding mode; the steel bars 11 are fixedly connected with the deck, the side wall of the cable guide base 1 and the reinforcing plate 10 in a full-length welding mode; the hollow beam 12 is fixedly connected with the deck by adopting a full-length welding mode.

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.

Claims

1. A reinforced structure of a plurality of cable guide bases is characterized in that a plurality of cable guide bases (1) are welded on the upper surface of a deck in rows, the cable guide bases (1) are of a closed bottom-plate-free vertical box body structure welded on the deck, the height of each cable guide base (1) is 0.6-1m, a space smaller than 1m is reserved between every two adjacent cable guide bases (1), flat steel reinforcing ribs (2) are arranged on the lower surface of the top plate of each cable guide base (1),

the reinforcing structure is provided with at least two reinforcing plates (10) connected between adjacent fairlead bases (1), the reinforcing plates (10) are vertically welded on the upper surface of a deck, and two ends of the reinforcing plates are welded and fixed with the side walls of the fairlead bases (1);

the upper surface of each reinforcing plate (10) is provided with a concave semi-oval-shaped groove, each semi-oval-shaped groove is formed by an arc edge close to the fairlead bases (1) on two sides and a horizontal straight edge connecting two sections of arcs, the radius of each arc is larger than 100mm, and the distance between the lower surface of each reinforcing plate (10) and the lowest position of each shallow groove is at least 50 mm;

connect through billet (11) enhancement between two arbitrary reinforcing plates (10) between two fairlead bases (1), billet (11) cross-section is right angled triangle, and billet (11) each other become the side and the base on right angle limit respectively with fairlead base (1) lateral wall and deck welded connection.

2. The reinforcement structure of a multi-fairlead base according to claim 1, characterized in that the reinforcement plate (10) is a hollow beam with a partition provided inside, the partition being a vertical plate inside the hollow beam.

3. The reinforcing structure of the multiple cable guide base (1) according to claim 1, wherein a hollow steel plate (12) is further connected between any two reinforcing plates (10) between two cable guide bases (1), the end of the hollow steel plate (12) is connected to the reinforcing plate (10) below the horizontal straight edge, and the bottom edge of the hollow steel plate (12) is welded with a deck;

the height of the hollow steel plate (12) is less than 50 mm.

4. The reinforcing structure of a multi-fairlead base according to claim 3, characterized in that the reinforcing plate (10) is welded and fixed with the side walls of the deck and the fairlead base (1) by adopting a full-length welding mode;

the steel bars (11) are fixedly connected with the deck, the side wall of the cable guide base (1) and the reinforcing plate (10) in a full-length welding mode;