CN116552698A

CN116552698A - Detachable bailey frame structure for stacking fan blades of ocean platform

Info

Publication number: CN116552698A
Application number: CN202310396110.3A
Authority: CN
Inventors: 张炜
Original assignee: Jiangsu Dajin Heavy Industry Co ltd
Current assignee: Jiangsu Dajin Heavy Industry Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-08-08

Abstract

The invention relates to a detachable bailey frame structure for stacking blades of a fan of an ocean platform, which comprises side outer plates (2) on two sides of a main deck (1), wherein the side outer plates (2) are connected with a group of bailey frames (3) which are parallel to each other, and the bailey frames (3) extend outwards from the side outer plates (2) and gradually reduce in height; the bailey frame (3) is connected with the side outer plate (2) through a first node (4) at the upper end and a second node (5) at the lower end, and the first node (4) comprises a first pipe end backing plate (41), a fixed lug (42), a B-shaped pin shaft (43) and a cotter pin (44); the second node (5) comprises a second pipe end backing plate (51), and a lower bayonet (7 a) matched with the second pipe end backing plate (51) is arranged on the lower clamping seat (7). The invention has the advantages of effectively preventing the end part of the fan blade from deforming, being convenient to assemble and disassemble, flexible to use, reducing the space occupation rate, improving the construction safety and the operation convenience of operators and ensuring the normal navigation of the platform.

Description

Detachable bailey frame structure for stacking fan blades of ocean platform

Technical Field

The invention relates to the technical field of ship manufacturing, in particular to a detachable bailey frame structure for stacking fan blades of an ocean platform.

Background

With the development of offshore wind power, fan blades are longer and longer, and the length range of 5MW fans and above is 62-75 meters. At present, the width of a main stream maritime wind power platform in the market is generally not more than 50 meters, the range of the fan blade exceeding the width of a ship is large, the end part of the fan blade is unsupported, vertical deformation is very easy to occur, in addition, the blade needs to be at a certain height from a main deck so as to be convenient for installing a sling, and the crane is provided with a lifting blind spot, so that the fan blade can be generally placed along the width direction of a fan installation ship. However, because the width of the platform is far lower than the length of the blades, the width of the ship is greatly increased after the blades are placed, the sailing width of the platform is influenced, the ship still spans the platform when the ship is not used, the space occupation rate is large, and the sailing safety of the ship is seriously influenced.

Disclosure of Invention

The invention aims to solve the problems that the existing bailey overhead for stacking the fan blades is large in occupation and cannot be portable, navigation is affected, and the blades are easy to deform, and provides a detachable bailey frame structure for stacking the fan blades of an ocean platform, which can effectively prevent the end parts of the fan blades from being vertically deformed, is convenient to assemble and disassemble, is flexible to use, reduces the space occupation rate, improves the construction safety and the operation convenience of operators, and ensures the normal navigation of the platform.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a detachable bailey frame structure for stacking fan blades of an ocean platform comprises a main deck and side outer plates on two sides of the main deck, wherein a group of bailey frames which are parallel to each other are connected to the side outer plates, and the bailey frames extend outwards from the side outer plates and gradually decrease in height;

the bailey frame is connected with the side outer plate through a first node at the upper end and a second node at the lower end, the first node comprises a first pipe end backing plate, the inner side of the first pipe end backing plate is connected with a pair of mutually parallel fixing lugs, the fixing lugs and the first pipe end backing plate form a U-shaped structure, and a U-shaped opening of the fixing lugs faces the side outer plate;

the upper part of the side outer plate is fixed with a group of upper ear plates which are embedded in the U-shaped opening and clamped between the two fixed ears, the upper ear plates are connected with the fixed ears through B-shaped pin shafts, and the end parts of the B-shaped pin shafts are connected with cotter pins which are mutually matched so as to prevent the pin shafts from falling off accidentally;

the second joint comprises a second pipe end backing plate, a group of lower clamping seats are fixed at the lower part of the side outer plate, lower clamping openings matched with the second pipe end backing plate are formed in the lower clamping seats, and the second pipe end backing plate is connected with the lower clamping seats through being embedded in the lower clamping openings so as to realize detachable clamping fit;

the bailey frame is of a tubular truss structure, and the yield strength of the used pipe is not less than 355Mpa.

Further, the bailey frame comprises a cross beam above, an inclined beam below and a group of vertical beams and inclined supporting beams connected between the cross beam and the inclined beam, wherein the cross beam is horizontally arranged, the upper surface of the cross beam is flush with the main deck, and the distance between two adjacent vertical beams is gradually reduced from the side outer plate outwards so as to resist the end moment of the enlargement.

Furthermore, the cross beams, the oblique beams, the vertical beams and the supporting beams of the bailey frame are truss-type structural pipes, and the end parts of the pipes are connected with terminal sealing plates so as to enable the structure to be airtight and the inside to be corrosion-resistant.

Further, the end of the beam is connected with the first pipe end backing plate of the first node, the end of the beam is provided with X-shaped reinforcing toggle plates, each reinforcing toggle plate is a transverse isosceles trapezoid structure plate, and an included angle alpha between each reinforcing toggle plate and the horizontal direction is 40 degrees so as to be used for reinforcing the pipe end structural strength.

Further, the end of the oblique beam is connected with a pipe end backing plate II of a node II, the pipe end backing plate II is a circular plate, the lower clamping seat comprises an arc-shaped connecting plate and a baffle, and the radian of a lower bayonet formed between the connecting plate and the baffle is the same as that of the pipe end backing plate II.

Further, the distance between two adjacent upper ear plates is one meter.

Compared with the prior art, the technical scheme of the invention has the following advantages:

(1) The device is installed when the blades are required to be hoisted, the platform is detached when the platform is sailed, the ship width is not increased, the sailing of the platform is not influenced, and the device can be flexibly used;

(2) The device increases the construction area of the deck, adopts the bayonet design of the lower opening of the bailey frame, does not need manual bolt shaft fixation, reduces the construction difficulty and improves the construction safety;

(3) The bailey frame is triangular, and can be stacked on the main deck when not in use, so that the space occupation is reduced;

(4) The intervals of the ear plates of the bailey frames are unified to be one meter, any number of bailey frame machines can be combined for use, and the placement positions can be selected at will, so that the operation convenience is greatly improved;

(5) The invention adopts truss structure tube, because the moment of the end part is increased, the distance of the steel tube at the end part of the bailey frame is gradually encrypted, and the end is provided with a sealing plate, so that the structure is airtight and the interior is anti-corrosion.

Drawings

Fig. 1 is an assembly view of a detachable bailey frame structure for stacking fan blades of an ocean platform according to the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a top view of the removable bailey frame structure for stacking fan blades of an ocean platform in accordance with the present invention;

fig. 4 is a side view of the removable bailey boom structure for stacking fan blades of an ocean platform in accordance with the present invention;

FIG. 5 is an enlarged view of part B of FIG. 2;

FIG. 6 is a front view of a node of the present invention;

FIG. 7 is a top view of a node of the present invention;

FIG. 8 is a schematic diagram of the connection of the first node to the upper ear plate according to the present invention;

FIG. 9 is a front view of a beam end reinforcing structure of the present invention;

FIG. 10 is a cross-sectional view of C-C of FIG. 9;

FIG. 11 is a side view of a node II of the present invention;

fig. 12 is a second elevation view of a node of the present invention.

Description of the embodiments

Examples

In order that the invention may be more clearly understood, a detachable bailey frame structure for stacking fan blades of an ocean platform according to the present invention will be further described with reference to the accompanying drawings, and the specific embodiments described herein are for illustration only and not for limitation.

Referring to fig. 1 to 4, a detachable bailey frame structure for stacking fan blades of an ocean platform comprises a main deck 1 and side outer plates 2 on two sides of the main deck 1, and is characterized in that:

the side outer plate 2 is connected with a group of parallel bailey frames 3, the bailey frames 3 extend outwards from the side outer plate 2 and the height of the bailey frames is gradually reduced, the bailey frames 3 comprise an upper cross beam 31, a lower oblique beam 32, a group of vertical beams 33 and inclined support beams 34 connected between the cross beam 31 and the oblique beam 32, the cross beam 31 is horizontally arranged, the upper surface of the cross beam 31 is flush with the main deck 1, and the distance between two adjacent vertical beams 33 is gradually reduced outwards from the side outer plate 2 for resisting the increased end moment;

referring to fig. 4 and 5, the bailey frame 3 is connected with the outboard panel 2 through a first node 4 at the upper end and a second node 5 at the lower end;

referring to fig. 5, 6, 7, 9 and 10, the first node 4 includes a first pipe end pad 41, an end of the cross beam 31 is connected to the first pipe end pad 41, and an end of the cross beam 31 is provided with X-shaped reinforcing toggle plates 6, each reinforcing toggle plate 6 is a transverse isosceles trapezoid structural plate, and an included angle α between the transverse isosceles trapezoid structural plate and the horizontal direction is 40 °, so as to strengthen the pipe end structural strength;

referring to fig. 6, 7 and 8, a pair of fixing lugs 42 parallel to each other are connected to the inner side of the first pipe end pad 41, the fixing lugs 42 and the first pipe end pad 41 form a U-shaped structure, a U-shaped opening 4a of the fixing lugs faces the side outer plate 2, a group of upper lug plates 21 are fixed on the upper part of the side outer plate 2, the upper lug plates 21 are embedded in the U-shaped opening 4a and clamped between the two fixing lugs 42, the upper lug plates 21 are connected with the fixing lugs 42 through a B-shaped pin shaft 43, and the end parts of the B-shaped pin shaft 43 are connected with cotter pins 44 matched with each other so as to prevent the pin shaft from falling accidentally;

referring to fig. 5, 11 and 12, the second node 5 includes a circular pipe end pad 51, the end of the inclined beam 32 is connected with the pipe end pad 51, a group of lower clamping seats 7 are fixed at the lower part of the outboard plate 2, the lower clamping seats 7 include an arc-shaped connecting plate 71 and a baffle 72, an arc-shaped lower bayonet 7a is formed between the connecting plate 71 and the baffle 72, the radian of the lower bayonet 7a is the same as that of the pipe end pad 51, and the pipe end pad 51 is connected with the lower clamping seat 7 by being embedded in the lower bayonet 7a so as to realize detachable clamping fit;

the bailey frame 3 is a tubular truss structure, the yield strength of the used pipe is not less than 355Mpa, and the end parts of the cross beam 31, the inclined beam 32, the vertical beam 33 and the supporting beam 34 are connected with end sealing plates 35 for sealing the structure and preventing corrosion.

In this embodiment, the length of the single bailey frame 3 is 14 meters, and the maximum height is about 3 meters; the distance between the upper ear plates of the platform side outer plates is unified to be 1 meter. See FIG. 4The bailey frame 3 has nine vertical beams 33 in total, plays a supporting role in the vertical direction, and the vertical beams at the end are gradually encrypted because the moment at the end is the largest; l calculated from the distance from the side outer plate 2 to the approach to the side outer plate 2 ₁ ~L ₈ The length of the water heater is 850 meters, 1000 meters, 1500 meters, 2000 meters, 2500 meters and 2500 meters in sequence.

The invention adopts a detachable bailey frame, the bailey frame adopts a tubular truss structure, the tubular material is made of high-strength steel material with the yield strength not less than 355MPA, and the bailey frame and the side of the platform are provided with two connection points, wherein the upper ends of the bailey frame are connected through pin shafts; the bayonet type is adopted to the lower extreme to replace the round pin hub connection, has made things convenient for the dismantlement, has improved efficiency, and convenient accomodating when not using simultaneously does not influence platform width and normal navigation, and whole bailey frame structural strength is high, and stability is good, can effectively guarantee that fan blade tip has the support, prevents vertical deformation.

In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.

Claims

1. A detachable bailey frame structure for platform fan blade stacks, includes main deck (1) and outboard planking (2) of main deck (1) both sides, its characterized in that:

the side outer plate (2) is connected with a group of parallel bailey frames (3), and the bailey frames (3) extend outwards from the side outer plate (2) and gradually reduce in height;

the bailey frame (3) is connected with the side outer plate (2) through a first node (4) at the upper end and a second node (5) at the lower end, the first node (4) comprises a first pipe end base plate (41), a pair of mutually parallel fixing lugs (42) are connected to the inner side of the first pipe end base plate (41), the fixing lugs (42) and the first pipe end base plate (41) form a U-shaped structure, and a U-shaped opening (4 a) of the fixing lugs faces the side outer plate (2);

a group of upper ear plates (21) are fixed on the upper part of the side outer plate (2), the upper ear plates (21) are embedded in the U-shaped opening (4 a) and clamped between the two fixed ears (42), the upper ear plates (21) are connected with the fixed ears (42) through B-shaped pin shafts (43), and the end parts of the B-shaped pin shafts (43) are connected with cotter pins (44) which are matched with each other;

the second joint (5) comprises a second pipe end backing plate (51), a group of lower clamping seats (7) are fixed at the lower part of the side outer plate (2), lower clamping openings (7 a) matched with the second pipe end backing plate (51) are formed in the lower clamping seats (7), and the second pipe end backing plate (51) is connected with the lower clamping seats (7) by being embedded in the lower clamping openings (7 a);

the bailey frame (3) is of a tubular truss structure, and the yield strength of the used pipe is not less than 355Mpa.

2. The detachable bailey frame structure for stacking fan blades of an ocean platform of claim 1, wherein:

the bailey frame (3) comprises a cross beam (31) above, an inclined beam (32) below and a group of vertical beams (33) and inclined supporting beams (34) connected between the cross beam (31) and the inclined beam (32), wherein the cross beam (31) is horizontally arranged, the upper surface of the cross beam is flush with the main deck (1), and the distance between two adjacent vertical beams (33) is gradually reduced from the side outer plate (2) to the outside.

3. The detachable bailey frame structure for stacking fan blades of an ocean platform of claim 2, wherein:

the beam (31), the oblique beam (32), the vertical beam (33) and the supporting beam (34) of the bailey frame (3) are all truss-type structure pipes, and the end parts of the pipes are connected with end sealing plates (35).

4. A removable bailey frame structure for stacking ocean platform fan blades according to claim 2 or 3, wherein:

the end of the cross beam (31) is connected with a pipe end backing plate (41) of the first node (4), the end of the cross beam (31) is provided with X-shaped reinforcing toggle plates (6), and each reinforcing toggle plate (6) is a transverse isosceles trapezoid structural plate with an included angle alpha of 40 degrees with the horizontal direction.

5. A removable bailey frame structure for stacking ocean platform fan blades according to claim 2 or 3, wherein:

the end of the inclined beam (32) is connected with a pipe end backing plate II (51) of a joint II (5), the pipe end backing plate II (51) is a circular plate, the lower clamping seat (7) comprises an arc-shaped connecting plate (71) and a baffle (72), and the radian of a lower bayonet (7 a) formed between the connecting plate (71) and the baffle (72) is the same as that of the pipe end backing plate II (51).

6. A removable bailey frame structure for stacking ocean platform fan blades according to claim 2 or 3, wherein:

the distance between two adjacent upper ear plates (21) is one meter.