A detachable fan blade shelf for a wind power installation platform ship

Abstract

The invention discloses a detachable wind turbine blade rack of a wind power installation platform ship, comprising a pair of side racks or a pair of stern racks, two groups of side ear plate bases, two groups of latch bases, two pairs of rear ear plate bases, two pairs of root ear plate bases and two pairs of cross-piece bases. The two groups of side ear plate bases and the two groups of side ear plate bases are fixed to the deck edge near the side and the side outer plate at intervals along the ship length direction; a pair of side racks are installed on the two groups of side ear plate bases and the corresponding latch bases in a one-to-one correspondence; two pairs of rear ear plate bases are fixed to the deck edge near the stern at intervals; two pairs of root ear plate bases and two pairs of cross-piece bases are fixed to the deck surface near the stern and the stern sealing plate in a one-to-one correspondence with the two pairs of rear ear plate bases; a pair of stern racks are installed on the two pairs of rear ear plate bases, the corresponding root ear plate bases and the corresponding cross-piece bases in a one-to-one correspondence. The present invention basically does not occupy the effective stacking area of ​​the main deck.

Description

Technical Field

[0001] The invention relates to a detachable wind turbine blade rack of a wind power installation platform ship. Background Art

[0002] Wind power installation platform ships usually carry as many wind turbines as possible every time they go out to sea, which can greatly save transportation costs and improve the efficiency of installation and construction. With the development of offshore wind power technology, the trend of large-scale wind turbine units is inevitable. The increase in the length and weight of towers and wind turbine blades poses a challenge to the stacking area of ​​the main deck of wind power installation platform ships. The current common method is to stack the blades on the main deck, but as the wind turbine blades become longer and longer, the increase in stacking space requirements will lead to a reduction in the number of wind turbines that can be carried during sea operations. At present, some installation platform ships at home and abroad use blade brackets that are mainly fixed brackets, and the blade brackets arranged across the main deck still occupy a large effective area of ​​the main deck. In the absence of transportation needs, this blade bracket itself will also occupy the space of the main deck. The blade brackets used on some platform ships will also affect the berthing of wind turbine platform ships. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a detachable wind turbine blade rack for a wind power installation platform ship, which can enable the platform ship to carry an extra set of wind turbines, and basically does not occupy the effective stacking area of ​​the main deck, and has little impact on the berthing of the platform ship, and can significantly improve the economy of the platform ship.

[0004] The object of the present invention is achieved as follows: A detachable wind turbine blade rack for a wind power installation platform ship comprises a pair of side racks installed on the ship's side or a pair of stern racks installed on the stern of the ship, two groups of side ear plate bases, two groups of latch bases, two pairs of rear ear plate bases, two pairs of root ear plate bases and two pairs of cross bar bases; wherein,

[0005] Two sets of side ear plate bases are fixed at intervals along the length of the ship on the edge of the deck close to the side;

[0006] Two groups of latch bases and two groups of side lug plate bases are fixed on the side outer plates in a one-to-one correspondence;

[0007] A pair of side shelves are mounted on two sets of side ear plate bases and corresponding latch bases in a one-to-one correspondence;

[0008] Two pairs of rear lug bases are fixed at intervals to the edge of the deck near the stern;

[0009] Two pairs of root ear plate bases and two pairs of rear ear plate bases are fixed on the deck surface near the stern in a one-to-one correspondence;

[0010] Two pairs of cross-piece bases and two pairs of rear ear plate bases are fixed on the stern sealing plate in a one-to-one correspondence;

[0011] A pair of stern shelves are respectively installed on two pairs of rear ear plate bases, corresponding root ear plate bases and corresponding cross baffle bases.

[0012] For the detachable fan blade shelf of the above-mentioned wind power installation platform ship, wherein,

[0013] The side shelf is a rectangular space truss structure, and the side shelf has three upper cross braces and three lower cross braces. The three lower cross braces are arranged obliquely so that the width of the cross section of the side shelf gradually decreases from the root to the head; a side ear plate is fixed at the root of each of the three upper cross braces of each side shelf, and the roots of the three lower cross braces are each connected to a side plug pin through a transition plate;

[0014] The side ear plate base includes a bottom plate fixed on the deck surface and two main ear plates horizontally fixed on the top surface of the bottom plate and provided with pin holes; a circular side plate coaxial with the pin hole is fixed on each side surface of each main ear plate; an inner end elbow plate is connected between the inner ends of the two main ear plates, and an inner elbow plate is connected between the interiors of the two main ear plates; each group of side ear plate bases is respectively hinged to three side ear plates on a single side shelf through a pin shaft.

[0015] The plug pin base includes a main bearing plate and two guiding and limiting plates; the main bearing plate is horizontally fixed on the side shell plate, and a plug pin hole is opened in the middle of the main bearing plate; the two guiding and limiting plates are fixed on the top surface of the main bearing plate and symmetrically located on both sides of the plug pin hole, and the distance between the two guiding and limiting plates is adapted to the thickness of the transition plate on the side shelf; each group of plug pin bases is respectively inserted into the three side plug pins on a single side shelf.

[0016] For the detachable fan blade shelf of the above-mentioned wind power installation platform ship, wherein the plug pin base further includes two vertical elbow plates fixed between the bottom surface of the main bearing plate and the side shell plate, a reinforcing plate connected between the outer ends of the two vertical elbow plates, and two horizontal elbow plates respectively connected between the upper parts of the opposite surfaces of the two guiding and limiting plates and the side shell plate.

[0017] For the detachable fan blade shelf of the above-mentioned wind power installation platform ship, wherein,

[0018] The stern-end shelf is a rectangular space truss structure, and the stern-end shelf has three upper longitudinal braces and three lower longitudinal braces. At the rear and root of the two lower longitudinal braces on both sides, a rear vertical brace and a root vertical brace are connected respectively, and at the middle of the two lower longitudinal braces on both sides, an inclined brace is connected respectively; at the lower ends of the two rear vertical braces of each stern-end shelf, a rear ear plate is fixed respectively, and at the lower ends of the two root vertical braces, a root ear plate is fixed respectively; at the lower ends of the two inclined braces, a base plate with a horizontal baffle perforation is connected respectively, and a horizontal baffle is fixed in the horizontal baffle perforation of the base plate.

[0019] The structure of the rear ear plate base is the same as that of the side ear plate base; each pair of rear ear plate bases is respectively hinged to two rear ear plates on a single stern-end shelf through a pin shaft.

[0020] The structure of the root ear plate base is the same as that of the side ear plate base; each pair of root ear plate bases is respectively hinged to two root ear plates on a single stern-end shelf through a pin shaft.

[0021] The horizontal baffle base includes two side limiting plates and a bottom bearing plate; the two side limiting plates are fixed on the stern sealing plate of the ship, the distance between the opposite surfaces of the two side limiting plates is adapted to the thickness of the base plate on the stern-end shelf, and an L-shaped notch is opened on the inner side of the top surface of each side limiting plate; the bottom bearing plate is horizontally fixed between the middles of the two side limiting plates; each pair of horizontal baffle bases is respectively connected to two horizontal baffles on a single stern-end shelf.

[0022] In the detachable wind turbine blade shelf of the above-mentioned wind power installation platform ship, the horizontal baffle base further includes a lower horizontal brace plate connected between the bottoms of the two side limiting plates, two upper horizontal brace plates symmetrically connected between the upper parts of the opposite surfaces of the two side limiting plates and the stern sealing plate of the ship, and two vertical support plates symmetrically fixed between the upper parts of the opposite surfaces of the two side limiting plates and the two upper horizontal brace plates.

[0023] The detachable wind turbine blade shelf of the wind power installation platform ship of the present invention has the following characteristics:

[0024] 1. The blade shelf of the present invention is arranged by using the ship's side and stern, and through unique ear plate connection forms, pin connection forms and cross-bar connection forms, the installation and disassembly processes of the blade shelf are simple and efficient, saving the non-operation time of the platform ship.

[0025] 2. The blade rack of the present invention basically does not occupy the effective stacking area of the main deck, enabling more components such as the tower barrel and engine room of a set of wind turbines to be placed on the deck of the platform ship, improving the wind turbine transportation capacity of the platform ship. Moreover, the detachable structures of the side rack and the stern rack have less impact on the berthing of the platform ship, which can significantly improve the economy of the platform ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a top view of the structure of a detachable wind turbine blade rack of the present invention;

[0027] Figure 2 is a side view of the side rack in the present invention;

[0028] Figure 3 is a side view of the installation structure of the side rack in the present invention;

[0029] Figure 4a is a side view of the side ear plate base in the present invention;

[0030] Figure 4b is Figure 4a a top view (rotated 90°) of

[0031] Figure 5a is a top view of the pin base in the present invention;

[0032] Figure 5b is a side view of the pin base in the present invention;

[0033] Figure 5c is Figure 5b a left side view of

[0034] Figure 6 is a top view of another detachable wind turbine blade rack of the present invention;

[0035] Figure 7 is a side view of the installation structure of the stern rack in the present invention;

[0036] Figure 7a is Figure 7 an enlarged view of the P part in

[0037] Figure 8a is a front view of the crossbar base in the present invention;

[0038] Figure 8b is Figure 8a a top view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] Please refer to Figures 1 to 5c, the detachable wind turbine blade shelf of the wind power installation platform ship of the present invention includes a pair of side shelves 100 installed on the ship's side or a pair of stern-end shelves 400 installed at the stern of the ship, two groups of side ear plate bases 20, two groups of pin bases 30, two pairs of rear ear plate bases 50, two pairs of root ear plate bases 60, and two pairs of crossbar bases 70.

[0041] The side shelf 100 is a rectangular space truss structure, and the side shelf 100 has three upper cross braces 101 and three lower cross braces 102. The three lower cross braces 102 are arranged obliquely so that the width of the cross section of the side shelf 100 gradually decreases from the root to the head; at the root of each of the three upper cross braces 101 of each side shelf 100, a side ear plate 11 is fixed, and at the root of each of the three lower cross braces 102, a side pin 13 is connected through a transition plate 12 (see Figure 2 ).

[0042] The stern-end shelf 400 is a rectangular space truss structure, and the stern-end shelf 400 has three upper longitudinal braces 401 and three lower longitudinal braces 402. At the rear and root of the two lower longitudinal braces 402 on both sides, a rear vertical brace 403 and a root vertical brace 404 are connected one by one, and at the middle of the two lower longitudinal braces 402 on both sides, an inclined brace 405 is connected respectively; at the lower end of each of the two rear vertical braces 403, a rear ear plate 41 is fixed respectively, and at the lower end of each of the two root vertical braces 404, a root ear plate 42 is fixed respectively; the structures of the rear ear plate 41 and the root ear plate 42 are the same as the structure of the side ear plate 11; at the lower end of each of the two inclined braces 405, a base plate 43 with a crossbar perforation is connected respectively, and a crossbar 44 is fixed in the crossbar perforation of the base plate 43 (see Figure 7 ).

[0043] The two groups of side ear plate bases 20 are fixed at intervals along the ship length direction on the edge of the deck 300 near any one side of the ship; each group of side ear plate bases 20 is composed of three side ear plate bases 20 arranged along the ship length direction. Each side ear plate base 20 includes a bottom plate 21 fixed on the deck surface and two main ear plates 22 fixed on the top surface of the bottom plate 21 along the ship width direction and provided with pin holes. On the two side surfaces of each main ear plate 22, a circular side plate 23 coaxial with the pin hole is fixed respectively; between the inner ends of the two main ear plates 22, an inner end elbow plate 24 is connected, and between the interiors of the two main ear plates 22, an inner elbow plate 25 is connected (see Figure 4a and Figure 4b ).

[0044] Two groups of pin bases 30 and two groups of side ear plate bases 20 are fixedly arranged on the side outer plate 301 in a one-to-one correspondence; each group of pin bases consists of three pin bases 30 arranged along the ship length direction; each pin base 30 includes a main bearing plate 31, two guiding and limiting plates 32, two lower elbow plates 33, one reinforcing plate 34 and two upper elbow plates 35; wherein, the main bearing plate 31 is horizontally fixed on the side outer plate 301, and a pin hole 310 is formed in the middle of the main bearing plate 31; the two guiding and limiting plates 32 are fixed on the top surface of the main bearing plate 31 and symmetrically located on both sides of the pin hole 310, and the distance between the two guiding and limiting plates 32 is adapted to the thickness of the transition plate 12 on the side shelf 100; the two lower elbow plates 33 are fixedly arranged at intervals between the bottom surface of the main bearing plate 31 and the side outer plate 301; one reinforcing plate 34 is connected between the outer ends of the two lower elbow plates 33; the two upper elbow plates 35 are fixedly arranged on the opposite surfaces of the two guiding and limiting plates 32 and the side outer plate 301 in a one-to-one correspondence (see Figure 5a , Figure 5b and Figure 5c ).

[0045] Two pairs of rear ear plate bases 50 are fixedly arranged on the edge of the deck 300 near the stern at intervals along the ship width direction; each pair of rear ear plate bases 50 is respectively hinged to two rear ear plates 41 on a single stern end shelf 400 through a pin shaft in a one-to-one correspondence; the structure of the rear ear plate base 50 is the same as that of the side ear plate base 20, and also has two main ear plates, and the installation direction of the rear ear plate base 50 is perpendicular to the installation direction of the side ear plate base 20.

[0046] Two pairs of root ear plate bases 60 and two pairs of rear ear plate bases 50 are fixedly arranged on the surface of the deck 300 near the stern in a one-to-one correspondence; each pair of root ear plate bases 60 is respectively hinged to two root ear plates 42 on a single stern end shelf 400 through a pin shaft in a one-to-one correspondence; the structure of the root ear plate base 60 is the same as that of the side ear plate base 20, and also has two main ear plates, and the installation direction of the root ear plate base 60 is perpendicular to the installation direction of the side ear plate base 20.

[0047] Two pairs of crossbar bases 70 and two pairs of root earplate bases 50 are fixedly mounted on the stern sealing plate 302 in one-to-one correspondence. Each pair of crossbar bases 70 is connected to two crossbars 44 on a single stern-end shelf 400 in one-to-one correspondence. Each crossbar base 70 includes two side limiting plates 71, a bottom bearing plate 72, a lower horizontal brace plate 73, two upper horizontal brace plates 74, and two vertical support plates 75. Among them, the two side limiting plates 71 are fixedly mounted on the stern sealing plate 302 at intervals, and the distance between the opposite surfaces of the two side limiting plates 71 is adapted to the thickness of the base plate 43 on the stern-end shelf 400. An L-shaped notch is formed on the inner side of the top surface of each side limiting plate 71. The bottom bearing plate 72 is horizontally fixed between the middles of the two side limiting plates 71. The lower horizontal brace plate 73 is connected between the bottoms of the two side limiting plates 71. The two upper horizontal brace plates 74 are symmetrically connected between the upper parts of the opposite surfaces of the two side limiting plates 71 and the stern sealing plate 302. The two vertical support plates 75 are symmetrically fixed between the upper parts of the opposite surfaces of the two side limiting plates 71 and the two upper horizontal brace plates 74 (see Figure 8a and Figure 8b ).

[0048] A pair of side shelves 100 is applicable to transporting large-sized fan blades. When a pair of side shelves 100 needs to be installed, the pair of side shelves 100 is installed on two groups of side earplate bases 20 and a corresponding group of pin bases 30 in one-to-one correspondence (see Figure 1 ), that is, the three side earplates 11 on a single side shelf 100 are respectively inserted between the two main earplates 22 of a group (three) of side earplate bases 20 and then each is hinged to the side earplate base 20 through a pin shaft, and the three side pins 12 on a single side shelf 100 are respectively inserted into the pin holes 310 of a group (three) of pin bases 30 (see Figure 3 ).

[0049] The cross-section of the side shelf 100 is a rectangular truss structure with high stiffness. At the roots of the three upper cross braces 101 near the hull, single lugs 104 are provided to match the side earplate bases 20 on the deck. At the roots of the three lower cross braces 102 of the side shelf 100, pins 104 are provided to match the pin bases 30 on the side outer plate 301. Three double-earplate-structured side earplate bases 20 for fixing the side shelf 100 are provided at the deck edge near the port side. The side earplate bases 20 can provide lateral tension and bear part of the vertical gravity at the same time. Three pin bases 30 are also provided on the side outer plate 301, which are mainly used to bear the vertical gravity of the side shelf 100 and limit the vertical and lateral movement of the side shelf 100 at the same time. A set of side earplate bases 20 and a corresponding set of pin bases 30 are preferably arranged near the stern of the ship; another set of side earplate bases 20 and a corresponding set of pin bases 30 are preferably arranged in front of the ship and near the midship. Five side earplate bases 20 and five pin bases 30 are preferably arranged near the stern, so that the side shelf 100 near the stern can adjust the installation position according to the length of the fan blade.

[0050] The specific installation and disassembly process of the side shelf 100 is as follows:

[0051] Use the main crane equipped on the platform ship to lift the side shelf 100 to the installation position, lower the side shelf 100 along the outer plate of the ship's side until the three transition plates 12 on the side shelf 100 are inserted between the two guiding and limiting plates 36 of the three pin bases 30 one by one to position the three side pins 13 one by one, and then lower the side shelf 100 again to insert the three side pins 13 into the three pin holes 310 of the three pin bases 30 one by one, and insert the three side earplates 11 on the side shelf 100 between the two main earplates 22 of the three side earplate bases 20 one by one, and then hinge the three side earplates 11 to the three side earplate bases 20 one by one with three pin shafts. After the installation is completed, remove the lifting shackle of the main crane for the side shelf 100.

[0052] When the side shelf 100 needs to be disassembled, first use the main crane on the platform ship to lift the side shelf 100 to an appropriate position. After removing the three (on the three side earplate bases 20) pin shafts, then lift the side shelf 100 so that the three side pins 13 on the side shelf 100 are disengaged from the pin holes 310 on the three pin bases 30 one by one, and the disassembly of the side shelf 100 can be completed.

[0053] A pair of stern-end shelves 400 are suitable for transporting small-sized fan blades. When a pair of stern-end shelves 400 need to be installed, install a pair of stern-end shelves 400 on two pairs of root earplate bases 50, two pairs of corresponding rear earplate bases 60 and two pairs of corresponding cross-block bases 70 one by one (see Figure 6), that is, two rear lugs 41 on a single stern-end shelf 400 are respectively inserted between the two main lugs of a pair (two) of rear lug bases 60 and then each is hinged to the rear lug base 60 through a pin shaft. At the same time, two root lugs 42 on the single stern-end shelf 400 are respectively inserted between the two main lugs of a pair (two) of root lug bases 50 and then each is hinged to the root lug base 50 through a pin shaft. And two base plates 43 on the single stern-end shelf 400 are respectively inserted between the two side limiting plates 71 of a pair (two) of cross-bar bases 70, and a cross-bar 44 is embedded in the L-shaped notch of the two side limiting plates 71 (see Figure 7 and Figure 7a ).

[0054] The stern-end shelf 400 has a high stiffness truss structure with a rectangular cross-section; at the rear and root of two lower longitudinal struts 402 near the hull and on both sides, a rear vertical strut 403 and a root vertical strut 404 are respectively connected to the stern-end shelf 400. And at the lower ends of the two rear vertical struts 403 and the lower ends of the two root vertical struts 404, rear lugs 41 and root lugs 42 with a single-ear plate structure that are respectively matched with the rear lug bases 50 and root lug bases 60 on the deck are provided. At the same time, a diagonal strut 405 is respectively connected to the middle of the two lower longitudinal struts 402 on both sides, and at the lower ends of the two diagonal struts 405, a base plate 43 with a cross-bar 44 that is matched with the cross-bar base 70 on the stern-end sealing plate 302 is provided. And at the deck edge near the stern, root lug bases 50 and rear lug bases 60 with a double-ear plate structure for fixing the stern-end shelf 400 are provided. The root lug bases 50 and rear lug bases 60 simultaneously provide lateral tension and bear part of the vertical force. The cross-bar base 70 fixed on the stern-end sealing plate 302 is mainly used to bear the vertical pressure of the stern-end shelf 400, and at the same time, limits the vertical and lateral movement of the stern-end shelf 400.

[0055] The installation method of the stern-end shelf 400 is similar to that of the side shelf 100 and will not be elaborated here.

[0056] For the detachable fan blade shelf of the wind power installation platform ship of the present invention, the layout position is selected according to the size of the transported fan. When the platform ship transports fan blades of a smaller size, a pair of stern-end shelves 400 are used and installed at the stern of the ship; when transporting fan blades of a larger size, a pair of side shelves 100 are used and installed on the side, which basically does not occupy the effective stacking area of the main deck, and the installation and disassembly processes are simple and efficient.

[0057] The above embodiments are only for illustrating the present invention and not for limiting the present invention. Those skilled in the relevant technical fields can also make various changes or modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also fall within the scope of the present invention and should be defined by each claim.

Claims

1. A detachable fan blade shelf for a wind power installation platform ship, comprising a pair of side shelves mounted on the ship's side, two groups of side ear plate bases and two groups of pin bases; or comprising a pair of stern shelves mounted on the stern of the ship, two pairs of rear ear plate bases, two pairs of root ear plate bases and two pairs of crossbar bases; Characterized in that, The side shelf is a rectangular space truss structure, and the side shelf has three upper cross braces and three lower cross braces. The three lower cross braces are arranged obliquely so that the width of the cross section of the side shelf gradually decreases from the root to the head; A side ear plate is fixed at the root of each of the three upper cross braces of each side shelf, and a side pin is connected to the root of each of the three lower cross braces through a transition plate; Two groups of side ear plate bases are fixedly arranged at intervals along the ship length direction on the deck edge close to the ship's side; The side ear plate base includes a bottom plate fixed on the deck surface and two main ear plates horizontally fixed on the top surface of the bottom plate and provided with pin holes; A circular side plate coaxial with the pin hole is fixed on each side surface of each main ear plate; An inner end elbow plate is connected between the inner ends of the two main ear plates, and an inner elbow plate is connected between the interiors of the two main ear plates; Each group of side ear plate bases is hinged to the three side ear plates on a single side shelf through a pin shaft one by one; Two groups of pin bases are fixedly arranged on the ship's side outer plate corresponding to the two groups of side ear plate bases; The pin base includes a main bearing plate and two guiding and limiting plates; The main bearing plate is horizontally fixed on the ship's side outer plate, and a pin hole is opened in the middle of the main bearing plate; The two guiding and limiting plates are fixed on the top surface of the main bearing plate and symmetrically located on both sides of the pin hole. The distance between the two guiding and limiting plates is adapted to the thickness of the transition plate on the side shelf; Each group of pin bases is inserted into the three side pins on a single side shelf one by one; The stern shelf is a rectangular space truss structure, and the stern shelf has three upper longitudinal braces and three lower longitudinal braces. The rear and root parts of the two lower longitudinal braces on both sides are respectively connected with a rear vertical brace and a root vertical brace, and an inclined brace is connected to the middle of the two lower longitudinal braces on both sides; A rear ear plate is fixed at the lower end of each of the two rear vertical braces of each stern shelf, and a root ear plate is fixed at the lower end of each of the two root vertical braces; The lower ends of the two inclined braces are respectively connected with a base plate provided with a crossbar perforation, and a crossbar is fixed in the crossbar perforation of the base plate; Two pairs of rear ear plate bases are fixedly arranged at intervals on the deck edge close to the stern of the ship; The structure of the rear ear plate base is the same as that of the side ear plate base; Each pair of rear ear plate bases is hinged to the two rear ear plates on a single stern shelf through a pin shaft one by one; Two pairs of root ear plate bases are fixedly arranged on the deck surface close to the stern of the ship corresponding to the two pairs of rear ear plate bases; The structure of the root ear plate base is the same as that of the side ear plate base; Each pair of root ear plate bases is hinged to the two root ear plates on a single stern shelf through a pin shaft one by one; Two pairs of crossbar bases and two pairs of rear ear plate bases are fixedly mounted on the stern closure plate in a one-to-one correspondence; each crossbar base includes two side limiting plates and a bottom bearing plate; the two side limiting plates are fixedly mounted on the stern closure plate, the distance between the opposite surfaces of the two side limiting plates is adapted to the thickness of the base plate on the stern end shelf, and an L-shaped notch is formed in the inner side of the top surface of each side limiting plate; the bottom bearing plate is horizontally fixedly mounted between the middles of the two side limiting plates; each pair of crossbar bases is connected to two crossbars on a single stern end shelf in a one-to-one correspondence.

2. The detachable fan blade shelf of the wind power installation platform ship according to claim 1, characterized in that the pin base further includes two vertical gussets fixed between the bottom surface of the main bearing plate and the side shell plating, a reinforcing plate connected between the outer ends of the two vertical gussets, and two horizontal gussets respectively connected between the upper parts of the opposite surfaces of the two guiding and limiting plates and the side shell plating.

3. The detachable fan blade shelf of the wind power installation platform ship according to claim 1, characterized in that the crossbar base further includes a lower horizontal brace connected between the bottoms of the two side limiting plates, two upper horizontal braces symmetrically connected between the upper parts of the opposite surfaces of the two side limiting plates and the stern closure plate, and two vertical support plates symmetrically fixed between the upper parts of the opposite surfaces of the two side limiting plates and the two upper horizontal braces.

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