CN203428824U

CN203428824U - Revolving platform of large-sized pile winding offshore platform crane

Info

Publication number: CN203428824U
Application number: CN201320538799.0U
Authority: CN
Inventors: 关德壮; 石胜征; 玉艳军; 包建; 田鹏
Original assignee: Nantong Rainbow Heavy Machineries Co Ltd
Current assignee: Nantong Rainbow Heavy Machineries Co Ltd
Priority date: 2013-09-02
Filing date: 2013-09-02
Publication date: 2014-02-12
Anticipated expiration: 2023-09-02

Abstract

The utility model relates to a revolving platform of a large-sized pile winding offshore platform crane. The revolving platform comprises a body, wherein a pile passing hole is arranged in the center of the body; the upper surfaces of two corners of the front part of the body are welded with front supports; the upper surfaces of two corners of the rear part of the body are welded with rear supports; the two front supports are connected through a front cross beam; the two rear supports are connected through a rear cross beam; the front supports are connected with the rear supports through lateral cross beams; the lower part of each lateral cross beam is provided with a diagonal bar; the two front supports and the two rear supports are all provided with shaft seats for arrangement of lifting arms and A brackets; the rear part of the body is welded with a variable-frequency wrench mounting platform; the lower part of the body is welded with a cylinder; the lower part of the cylinder is welded with a revolving mechanism mounting flange; the cylinder corresponds to the pile passing hole; a plurality of T-shaped longitudinal reinforcing ribs are uniformly distributed on the outer circumferential surface of the cylinder. The revolving platform has the advantages of compact structure, light weight, rational stress and convenience in mechanical part arrangement.

Description

A kind of large-scale around stake formula offshore platform crane rotation platform

Technical field

The utility model relates to hoisting crane technical field, particularly a kind of large-scale around stake formula offshore platform crane rotation platform.

Background technology

Along with the fast development of offshore wind farm and oil production industry, the offshore platform demand of using weight-lifting equipment to carry out installation and maintenance increases day by day at present, weight-lifting equipment is also proposed to upgrade higher requirement simultaneously.Big elevating capacity, large work range have become conventional requirement, on this basis, deck effective operation area to offshore platform is had higher requirement, require the shared floor space of weight-lifting equipment the smaller the better, even utilize platform structure feature, do not take between deck space completely, to improve the service efficiency of offshore platform, for the double wind-powered electricity generation erecting stage transporting of doing, more can greatly reduce traffic cost.

For reaching above-mentioned purpose, the solution that self-elevating ocean platform adopts at present be conventionally on spud leg basic design, install large-scale around stake formula offshore platform hoisting crane, to reduce the demand between deck space.Turn table is as the erecting stage of the large-scale main carrying structure lotus around stake formula offshore platform hoisting crane and main mechanical part (hoister winch, span winch etc.), exist (spud leg diameter reaches more than 5 meters conventionally) of crossing a hole due to its center of gyration major diameter, turn table structural-load-carrying capacity has been caused to very adverse influence, bring very large difficulty to the structure design of turn table, the layout of mechanical part is affected simultaneously.

Summary of the invention

The purpose of this utility model is in order to overcome above deficiency, a kind of compact conformation is provided, from heavy and light, reasonable stress, be convenient to that mechanical part arranges large-scale around stake formula offshore platform crane rotation platform.

The purpose of this utility model is achieved through the following technical solutions: a kind of large-scale around stake formula offshore platform crane rotation platform, comprise body, the center of body had stake hole, two of the front portions angle upper surface of body is all welded with front bearing, Liang Ge angle, the rear portion upper surface of body is all welded with rear support, between two front bearings, by front cross rail, be connected, between two rear supports, by after cross member, be connected, between front bearing and rear support, by side crossbeam, be connected, the bottom of each side crossbeam is equipped with hound, on two front bearings and two rear supports, be equipped with for the axle bed of arm and Shears is installed, the rear portion of body is welded with span winch erecting stage, the bottom of body is welded with cylinder, the bottom of cylinder is welded with swing type mechanism mounting flange, cylinder is with stake hole is corresponding excessively, on the outer circumference surface of cylinder, be evenly distributed with many T-shaped walings.

Further improvement of the utility model is: before described in each, bearing is down " V " type structure.

The utility model compared with prior art has the following advantages:

1, at turn table, be provided with stake hole, and to allow pile leg structure pass through, realized hoisting crane and install, around stake, rotate around stake.

2, turn table is crossed a pore structure and is adopted cylindrical structure, greatly reduces the stress causing because of structure perforate and concentrates.Cylinder adopts thin-wall tubular structure, by arranging that the T-shaped waling of some improves the local stability method of cylinder, makes wall thickness of cylinder thinner, conducts oneself with dignity lighter, is convenient to manufacture.

3, turn table body upper and lower panel adopts local thickening method of designing, only the higher position of structural stress is thickeied to processing, has avoided adopting the waste of material causing with board thickness design, has effectively reduced dead load.

4, front bearing adopts " V " shape structure, compact conformation, is conducive to transmit the pressure of arm positive pressure and Shears front strut.

5, by the deep beam between each bearing is set, make turn table body, each bearing and crossbeam form a complete framed structure, improved the integrated carrying ability of the structure of turn table, the in the situation that of equal load-carrying capacity, scantling of structure is less, deadweight is lighter.

Accompanying drawing explanation:

Fig. 1 is that the three-dimensional axle of utility model structural representation is surveyed view;

Fig. 2 is that the three-dimensional axle of utility model structural representation is surveyed view;

Fig. 3 is the front view of utility model structural representation;

Fig. 4 is the birds-eye view of utility model structural representation;

Number in the figure: 1-body, 2-cross a hole, the front bearing of 3-, 4-rear support, 5-front cross rail, 6-after cross member, 7-side crossbeam, 8-hound, 9-axle bed, 10-span winch erecting stage, 11-cylinder, 12-swing type mechanism mounting flange, 13-T shape waling.

The specific embodiment:

In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment only, for explaining the utility model, does not form the restriction to the utility model protection domain.

Show as shown in Figure 1 to Figure 4 a kind of large-scale specific embodiment around stake formula offshore platform crane rotation platform of the utility model, comprise body 1, the center of body 1 had stake hole 2, two of the front portions angle upper surface of body 1 is all welded with front bearing 3, Liang Ge angle, the rear portion upper surface of body 1 is all welded with rear support 4, between two front bearings 3, by front cross rail 5, be connected, between two rear supports 4, by after cross member 6, be connected, between front bearing 3 and rear support 4, by side crossbeam 7, be connected, the bottom of each side crossbeam 7 is equipped with hound 8, on two front bearings 3 and two rear supports 4, be equipped with for the axle bed 9 of arm and Shears is installed, the rear portion of body 1 is welded with span winch erecting stage 10, the bottom of body 1 is welded with cylinder 11, the bottom of cylinder 11 is welded with swing type mechanism mounting flange 12, cylinder 11 is with stake hole 2 is corresponding excessively, on the outer circumference surface of cylinder 11, be evenly distributed with many T-shaped walings 13, before each, bearing 3 is down " V " type structure.

Body 1 described in the utility model is the basic design of turn table, its version is box-beam structure, center of gyration was provided with stake hole 2, cylinder 11 is contained in crossing on stake hole 2 of body 1, be welded into one with it, cylinder 11 internal diameters ensure enough spaces allows spud leg pass through, cylinder 11 lower ends are provided with swing type mechanism mounting flange 12, pivoting support and rotary gear box are installed on turn table by this flange 12, front bearing 3 collection arm erection supports, Shears front strut erection support is in one, transmit the pressure that arm positive pressure and suspension arm variable-amplitude pulling force act on Shears front strut, rear support 4 is the erection support of Shears back stay, transmit the pulling force that suspension arm variable-amplitude pulling force acts on Shears back stay, between bearing, be equipped with deep beam, it is front cross rail 5, after cross member 6 and side crossbeam 7 etc.

The utility model was by being provided with stake hole at turn table, to allow pile leg structure pass through, realizing hoisting crane installs around stake, around stake, rotate, turn table is crossed a pore structure and is adopted cylindrical structure, greatly reducing the stress causing because of structure perforate concentrates, cylinder adopts thin-wall tubular structure, by arranging that the T-shaped waling of some improves the local stability method of cylinder, make wall thickness of cylinder thinner, conduct oneself with dignity lighter, be convenient to manufacture, turn table body upper and lower panel adopts local thickening method of designing, only the higher position of structural stress is thickeied to processing, avoided adopting the waste of material causing with board thickness design, effectively reduced dead load, front bearing adopts " V " shape structure, compact conformation, be conducive to transmit the pressure of arm positive pressure and Shears front strut, by the deep beam between each bearing is set, make turn table body, each bearing and crossbeam form a complete framed structure, improved the integrated carrying ability of the structure of turn table, the in the situation that of equal load-carrying capacity, scantling of structure is less, conduct oneself with dignity lighter.

Claims

1. one kind large-scale around stake formula offshore platform crane rotation platform, comprise body (1), it is characterized in that: the center of described body (1) had stake hole (2), two of the front portions angle upper surface of described body (1) is all welded with front bearing (3), Liang Ge angle, the rear portion upper surface of described body (1) is all welded with rear support (4), between two described front bearings (3), by front cross rail (5), be connected, between two described rear supports (4), by after cross member (6), be connected, between described front bearing (3) and described rear support (4), by side crossbeam (7), be connected, described in each, the bottom of side crossbeam (7) is equipped with hound (8), on two described front bearings (3) and two described rear supports (4), be equipped with the axle bed (9) for arm and Shears are installed, the rear portion of described body (1) is welded with span winch erecting stage (10), the bottom of described body (1) is welded with cylinder (11), the bottom of described cylinder (11) is welded with swing type mechanism mounting flange (12), described cylinder (11) is corresponding with described stake hole (2) excessively, on the outer circumference surface of described cylinder (11), be evenly distributed with many T-shaped walings (13).

2. a kind of large-scale around stake formula offshore platform crane rotation platform according to claim 1, it is characterized in that: before described in each, bearing (3) is down " V " type structure.