CN106428424A

CN106428424A - Lightening hole structure

Info

Publication number: CN106428424A
Application number: CN201610962220.1A
Authority: CN
Inventors: 李轶兵; 甘水来; 黄祖钦; 陈飞; 陈茂勇
Original assignee: Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd; Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Waigaoqiao Of Shaihai Shipbuilding Marine Engineering Design Co Ltd; Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2016-10-28
Filing date: 2016-10-28
Publication date: 2017-02-22
Anticipated expiration: 2036-10-28
Also published as: CN106428424B

Abstract

The invention discloses a lightening hole structure, comprising a lightening hole; the lightening hole is arranged on a platform plate, a peripheral outline of the lightening hole is in the shape of ellipse or quasi-ellipse; a longitudinal batten and several cross battens are arranged on the lightening hole, and intersected to each other perpendicularly; the longitudinal batten, the cross battens and the platform plate are located on the same one plane, thus an integral filling plate leveled to the platform plate is formed on the lightening hole; several stripe holes are crossly aligned on the integral filling plate, and the strip holes are distributed in the lightening hole in the form of cross symmetry and longitudinal symmetry, and overlapped or tangential to the peripheral outline of the lightening hole. The lightening hole structure provided by the invention needs not square steel and welding operation; moreover, the structure is very suitable for special coating of a ballast tank, so as to reach the effects of weight reduction and fluid circulation, and facilitate construction.

Description

A kind of mitigation pore structure

Technical field

The present invention relates to a kind of mitigate pore structure.

Background technology

At present, as marine hydraulic hold and empty cabin inside panel stress are less, it will usually open up lightening core, for mitigating structure Weight, while improve the mobility of liquid.For preventing personnel from falling from lightening core, need to lay square steel above manhole.But It is that this can increase welding job amount, trip hazards easily occurs in personnel's walk process, in addition square steel is oily with the welding position of platform Paint protection is difficult, is susceptible to corrosion.These problems how are solved, is not expressly stated otherwise in pertinent literature.

Content of the invention

The technical problem to be solved is to overcome mitigation pore structure of the prior art increase welding job The defect of amount, welding position paints and lacquers protection difficult and easy generation trip hazards and easy corrosion, and provide a kind of lightening core Structure.

The invention provides a kind of mitigate pore structure, which includes a lightening core, and the lightening core is opened on a landing slab, The circumference of the lightening core is shaped as ellipse or class ellipse, and the lightening core is provided with a longitudinal lath and some Transverse slats, longitudinal lath and the transverse slats intersect vertically, and longitudinal lath, transverse slats and described Landing slab is respectively positioned in same level, so that one piece of formation is integral-filled with what the landing slab was flushed on the lightening core Plate, is laterally placed with some row's bar holes on the integral-filled plate, the bar hole is divided with symmetrical, symmetrical above and below form The mitigation in the hole is distributed in, and is overlapped or tangent with the circumference of the lightening core.

It is preferred that the bar hole symmetrical structure of line centered on longitudinal lath.

It is preferred that the width of the transverse slats is 40mm.

It is preferred that the circumference of the lightening core for short axle be 400mm, major axis for 600mm ellipse, the longitudinal plate The width of bar is 80mm, and the arrangement mode of the bar hole is 4 rows, often arranges two, the width of the bar hole is 70mm, described The quantity of transverse slats is 3.

It is preferred that the circumference of the lightening core for short axle be 500mm, major axis for 800mm ellipse, the longitudinal plate The width of bar is 90mm, and the arrangement mode of the bar hole is 5 rows, often arranges two, the width of the bar hole is 68mm, described The quantity of transverse slats is 4.

It is preferred that the circumference of the lightening core for short axle be 600mm, major axis for 800mm ellipse, the longitudinal plate The width of bar is 100mm, and the arrangement mode of the bar hole is 6 rows, often arranges two, the width of the bar hole is 66.6mm, The quantity of the transverse slats is 5.

It is preferred that in the bar hole, positioned at the outside of the outermost two rows bar hole of the short-axis direction of the lightening core Wedge angle chamfering is 20mm, and the chamfering of remaining bar hole in addition to outermost two rows bar hole is 30mm.

It is preferred that the shape of remaining bar hole in addition to outermost two rows bar hole is as follows：By a rectangle and setting Constitute in the arc section at its two ends.

On the basis of common sense in the field is met, above-mentioned each optimum condition, can combination in any, obtain final product each preferable reality of the present invention Example.

The positive effect of the present invention is：

(1) square steel need not be added, reduces welding job amount；

(2) square steel need not be added, it is only necessary to perforate on platform, will not trips in personnel's walk process；

(3) need not weld, reduce the corrosion of weld；

(4) construction technology is simple, and perforate can be realized by Numerical control cutting；

(5) construction weight is alleviated；

(6) for the platform in ballast tank, using the lightening core of the present invention, can be normally carried out PSPC (《All types ship Special seawater ballast tank and the double topside place protective coating performance standards of bulk freighter》) application coating, without the need for carrying out its elsewhere again Reason.

Description of the drawings

Fig. 1 is the schematic diagram of the mitigation pore structure of the embodiment of the present invention 1.

Fig. 2 is the schematic diagram of the mitigation pore structure of the embodiment of the present invention 2.

Fig. 3 is the schematic diagram of the mitigation pore structure of the embodiment of the present invention 3.

Fig. 4 is the schematic diagram of the lightening core with landing slab of the embodiment of the present invention 3.

Specific embodiment

The present invention is further illustrated below by the mode of embodiment, but therefore do not limit the present invention to described reality Apply among a scope.

Embodiment 1

The method for designing of the mitigation pore structure of the present invention is carried out in accordance with the following steps：

The first step：Finding out in Ship Structure in figure needs the position for opening up lightening core；

Second step：Determine the size for opening up lightening core；

3rd step：Choose the form of new lightening core；

4th step：New lightening core is added in drawing according to positioning, guiding construction.

The mitigation pore structure that the present embodiment is provided, its schematic diagram is as shown in Figure 1.Which includes that one is opened on landing slab one Lightening core, the circumference of the lightening core for short axle be 400mm, major axis for 600mm ellipse, the lightening core is provided with One longitudinal lath 101 and 3 transverse slats 102, longitudinal lath 101 and the transverse slats 102 intersect vertically, and described Longitudinal lath 101, the transverse slats 102 and the landing slab are respectively positioned in same level, so that on the lightening core One block of integral-filled plate for flushing with the landing slab is formed, some row's bar holes 2 on the integral-filled plate, is laterally placed with, The bar hole 2 is with symmetrical, symmetrical above and below formal distribution in the mitigation in the hole, and the circumference with the lightening core Overlap or tangent.

Equivalent to, 4 rows are laterally offered on the lightening core, often arrange two bar holes 2, those bar holes 2 are right with left and right Claim, formal distribution symmetrical above and below is on the lightening core, and overlap or tangent with the circumference of the lightening core, so that institute State lightening core and the slab construction being made up of a longitudinal lath 101 and 3 transverse slats 102 is formed, the lightening core is with described vertical The symmetrical structure of line to centered on lath 101.

The width of the transverse slats 102 is 40mm.The width of longitudinal lath 101 is 80mm, the bar hole 2 Width is 70mm.In the bar hole 2, positioned at the outside point of the outermost two rows bar hole 2 of the short-axis direction of the lightening core Angle chamfering is 20mm, and the chamfering of remaining bar hole 2 in addition to outermost two rows bar hole 2 is 30mm.

The shape of remaining bar hole 2 in addition to outermost two rows bar hole 2 is as follows：By a rectangle and located at its two The arc section composition at end.

Embodiment 2

The schematic diagram of the mitigation pore structure of the present embodiment as shown in Fig. 2 its structure is substantially the same manner as Example 1, difference Place is only that：

The circumference of the lightening core for short axle be 500mm, major axis for 800mm ellipse, longitudinal lath 101 Width is 90mm, and the arrangement mode of the bar hole 2 is 5 rows, often arranges two, the width of the bar hole 2 is 68mm, the horizontal stroke It is 4 to the quantity of lath 102.

Embodiment 3

As shown in Figure 3,4, its structure is substantially the same manner as Example 1 for the schematic diagram of the mitigation pore structure of the present embodiment, such as Fig. 4 Shown, the shape of landing slab 3 can have any shape, and the difference is that only：

The circumference of the lightening core 4 for short axle be 600mm, major axis for 800mm ellipse, longitudinal lath 101 Width be 100mm, the arrangement mode of the bar hole 2 is 6 rows, often arranges two, and the width of the bar hole 2 is 66.6mm, The quantity of the transverse slats 102 is 5.

The mitigation pore structure that the present invention is provided, on the premise of personal security is ensured, is made using the material of landing slab itself For dropproof gusset, without the need for add square steel again, without the need for welding operation, and it is particularly suitable for the special painting of ballast tank, had both reached loss of weight With the effect of liquid communication, and convenient construction.

Claims

1. one kind mitigates pore structure, and which includes a lightening core, and the lightening core is opened on a landing slab, outside the lightening core Contour shape is enclosed for oval or class ellipse, it is characterised in that the lightening core is provided with a longitudinal lath and some horizontal strokes To lath, longitudinal lath and the transverse slats intersect vertically, and longitudinal lath, transverse slats and described flat Platen is respectively positioned in same level, so that one piece of formation is integral-filled with what the landing slab was flushed on the lightening core Plate, is laterally placed with some row's bar holes on the integral-filled plate, the bar hole is divided with symmetrical, symmetrical above and below form The mitigation in the hole is distributed in, and is overlapped or tangent with the circumference of the lightening core.

2. mitigation pore structure as claimed in claim 1, it is characterised in that bar hole line centered on longitudinal lath Symmetrical structure.

3. mitigation pore structure as claimed in claim 2, it is characterised in that the width of the transverse slats be.

4. mitigation pore structure as claimed in claim 3, it is characterised in that the circumference of the lightening core for short axle is 400mm, major axis are the ellipse of 600mm, the width of longitudinal lath be the arrangement mode of 80mm, the bar hole be 4 rows, per Row two, the width of the bar hole is 70mm, and the quantity of the transverse slats is 3.

5. mitigation pore structure as claimed in claim 3, it is characterised in that the circumference of the lightening core for short axle is 500mm, major axis are the ellipse of 800mm, the width of longitudinal lath be the arrangement mode of 90mm, the bar hole be 5 rows, per Row two, the width of the bar hole is 68mm, and the quantity of the transverse slats is 4.

6. mitigation pore structure as claimed in claim 3, it is characterised in that the circumference of the lightening core for short axle is 600mm, major axis are the ellipse of 800mm, the width of longitudinal lath be the arrangement mode of 100mm, the bar hole be 6 rows, Often two are arranged, the width of the bar hole is 66.6mm, and the quantity of the transverse slats is 5.

7. the mitigation pore structure as any one of claim 4～6, it is characterised in that in the bar hole, positioned at described The outside wedge angle chamfering of the outermost two rows bar hole of the short-axis direction of lightening core be 20mm, except outermost two rows bar hole it The chamfering of remaining outer bar hole is 30mm.

8. mitigation pore structure as claimed in claim 7, it is characterised in that remaining in addition to outermost two rows bar hole The shape in shape hole is as follows：It is made up of a rectangle and the arc section located at its two ends.