Integrated device for combining offshore wind power expansion platform and impeller

Abstract

The invention discloses an offshore wind power expansion platform and impeller combined integrated device which comprises a connecting table, a plurality of impellers and an impeller assembly. The expansion platform is fixed to the side edge of the connecting table, extends outwards and is suspended, and a rotating mechanism is installed on the expansion platform; the auxiliary mechanism is used for installing a hub and is fixed to the expansion platform, and the rotating mechanism drives the auxiliary mechanism to rotate on the expansion platform. After the blades are installed on the hub, the rotating mechanism drives the auxiliary mechanism and the hub to rotate, the blades and the hub are pre-installed, after pre-installation is completed, the blades are located on the expansion platform, the three blades extend towards the sea surface, the space of a platform deck is not occupied, and the problem that the space of the platform deck is occupied after the three blades and the hub are pre-installed is solved. And the construction operation of the platform deck is influenced.

Description

Technical Field

[0001] The invention relates to an offshore wind power expansion platform and impeller combined integrated device, belonging to the technical field of offshore wind power construction. Background Art

[0002] During the construction and installation of offshore wind power, the tower is fixed on the sea surface through a pile foundation, then the hub is installed, and then the blades are installed (see Chinese patent publication number CN105927478A). Due to the influence of sea breezes at sea, sometimes there is only a short construction window, so sometimes the blades and hub need to be pre-installed on the platform deck first, and then hoisted onto the tower.

[0003] The existing blade and hub pre-installation technology is shown in Chinese Patent Publication No. CN103939299B. Although the blade and hub can be pre-installed in the middle of the platform deck, the position of the three blades after pre-installation will occupy the platform deck space, affecting other construction operations on the platform deck. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an integrated device of an offshore wind power expansion platform and an impeller combination.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides an offshore wind power expansion platform and impeller combination integrated device, comprising:

[0007] The connecting platform is a part of the platform deck structure;

[0008] An expansion platform is fixed on the side of the connecting platform and extends outwards in the air, and a rotating mechanism is installed on the expansion platform;

[0009] The auxiliary mechanism is used to install the wheel hub, the auxiliary mechanism is fixed on the auxiliary mechanism, and the rotating mechanism drives the auxiliary mechanism to rotate on the expansion platform.

[0010] A crane is installed on the connecting platform, a hoist is installed on the crane, and the hoist has a cable that is bound with the blades for hoisting.

[0011] It also includes a mounting ring installed on the blade when the blade is hoisted at a later stage, and the mounting ring is larger than the connecting port.

[0012] The auxiliary mechanism includes a body fixedly connected to the top of the connecting block, a moving block is connected to the body through a retractable first hydraulic rod, and a retractable third hydraulic rod is radially installed on the moving block; a limit ring is only slidably installed on the outer periphery of the moving block, the limit ring is connected to the body through a retractable second hydraulic rod, and the second hydraulic rod provides power to push the limit ring.

[0013] The moving block is provided with a limiting groove, and the limiting ring is provided with a protrusion and the limiting groove and can only slide along the axial direction of the moving block.

[0014] The rotating mechanism includes a motor whose shell part is fixed on the expansion platform, a first gear is fixed to the motor output shaft, a second gear is meshed with the first gear, a connecting block is fixedly connected inside the second gear, and the connecting block is rotatably connected to the expansion platform through a ball bearing.

[0015] A limiting block is fixed at the bottom of the connecting block.

[0016] The beneficial effect of the present invention is that after the blades are installed on the hub, the rotating mechanism rotates with the auxiliary mechanism and the hub, and the blades are pre-installed with the hub. After the pre-installation is completed, the blades are on the expansion platform, and the three blades extend toward the sea surface, and will not occupy the platform deck space, thus solving the problem that the three blades and the hub occupy the platform deck space after pre-installation, affecting the platform deck construction operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the integrated device of the present invention;

[0020] Figure 4 It is a schematic diagram of the impeller assembly of the present invention;

[0021] Figure 5 It is a schematic cross-sectional view of the auxiliary mechanism structure of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the limit groove of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the rotating mechanism of the present invention;

[0024] Figure 8 It is a schematic diagram of the front view of the double impeller combination arrangement of the present invention;

[0025] Fig. 9 It is a top view schematic diagram of the double impeller combination arrangement of the present invention;

[0026] In the figure: 1-connecting platform; 2-auxiliary mechanism; 201-machine body; 202-first hydraulic rod; 203-second hydraulic rod; 204-limiting ring; 205-moving block; 206-third hydraulic rod; 207-limiting groove; 3-rotating mechanism; 301-motor; 302-first gear; 303-second gear; 304-limiting block; 305-connecting block; 306-ball bearing; 4-wheel hub; 5-blade; 6-connecting port; 7-mounting ring; 8-expansion platform; 9-crane; 10-electric hoist; 11-cable. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0028] like Figures 1 to 9 shown.

[0029] The present application discloses an integrated offshore wind power expansion platform and impeller assembly device, comprising:

[0030] A connecting platform 1 is a part of the platform deck structure, and an outwardly extending expansion platform 8 is fixed on the side of the connecting platform 1. The expansion platform 8 extends outward from the side of the connecting platform 1 and is suspended in the air. A rotating mechanism 3 is installed on the expansion platform 8, and an auxiliary mechanism 2 is installed on the rotating mechanism 3. The rotating mechanism 3 rotates on the expansion platform 8 with the auxiliary mechanism 2, and the auxiliary mechanism 2 is installed with a hub 4. The auxiliary mechanism 2 can abut against the blade 5 and pull the blade 5 to be docked and inserted into the connecting port 6 of the hub 4.

[0031] A crane 9 is installed on the connecting platform 1 , and a hoist 10 is installed on the crane 9 . The hoist 10 is bound with the blade 5 through a cable 11 for hoisting.

[0032] The blade 5 is provided with a mounting ring 7 which is larger than the connection opening 6 and plays a role in docking, stopping and aligning.

[0033] The blade 5 is hoisted by a crane 9 and docked with the connecting port 6 of the hub 4. After the blade 5 is installed on the hub 4, the rotating mechanism 3 rotates with the auxiliary mechanism 2 and the hub 4, and the installed blade 5 rotates to the side away from the connecting platform 1, and then the remaining blades 5 are installed on the hub 4 in sequence, so that the blade 5 and the hub 4 are pre-installed. After the pre-installation is completed, the blade 5 is on the expansion platform 8, and the three blades 5 extend toward the sea surface, which will not occupy the platform deck space, thereby solving the problem that the three blades and the hub occupy the platform deck space after pre-installation, affecting the platform deck construction operation.

[0034] The rotating mechanism 3 includes a motor 301 whose shell part is fixed on the expansion platform 8, a first gear 302 is fixed to the output shaft of the motor 301, the first gear 302 is meshed with a second gear 303, a connecting block 305 is fixedly connected inside the second gear 303, and the connecting block 305 is rotatably connected to the expansion platform 8 through a ball bearing 306; a limiting block 304 is fixed at the bottom of the connecting block 305.

[0035] The top of the connecting block 305 is fixedly connected with an auxiliary mechanism 2; the auxiliary mechanism 2 comprises a body 201 fixedly connected with the top of the connecting block 305, a moving block 205 is connected to the body 201 via a retractable first hydraulic rod 202, a retractable third hydraulic rod 206 is radially mounted on the moving block 205, the third hydraulic rod 206 is a plurality of third hydraulic rods 206 distributed in a circular array on the periphery of the moving block 205, and the plurality of third hydraulic rods 206 are extended to abut against the inner surface of the blade 5; a limiting ring 204 can only be slidably mounted on the periphery of the moving block 205, the moving block 205 is provided with a limiting groove 207, the limiting ring 204 is provided with a protrusion and the limiting groove 207 and can only slide axially along the moving block 205, the limiting ring 204 is connected to the body 201 via a retractable second hydraulic rod 203, and the second hydraulic rod 203 provides power to push the limiting ring 204 into the connecting port 6 of the wheel hub 4.

[0036] The present application provides a construction method for an offshore wind power expansion platform and impeller combination integrated device, comprising: a hub 4 is installed on an auxiliary mechanism 2 of the offshore wind power expansion platform and impeller combination integrated device, a rotating mechanism 3 drives the hub 4 of the rotating mechanism 3 to rotate in sequence and pre-docking and installing three blades 5, after the pre-installation is completed, the three blades 5 are on an outwardly extending suspended expansion platform 8, at which time the three blades 5 extend toward the sea surface and will not occupy the platform deck space.

[0037] Working principle: When in use, the wheel hub 4 located on the connecting platform 1 is hoisted onto the auxiliary mechanism 2 by the crane 9 using the cable 11, and it is placed well. Then the motor 301 starts to work, driving the first gear 302 to rotate, so that the second gear 303 rotates, and then the connecting block 305 rotates, driving the auxiliary mechanism 2 to rotate, so that the limit ring 204 is connected to the connecting port 6. After the connection is completed, the first hydraulic rod 202 and the second hydraulic rod 203 start to work, pushing the moving block 205 and the limit ring 204 to move together, and the limit ring 204 is stuck in the connecting port 6, abutting against the connecting port 6 to fix the wheel hub 4, and then the cable 11 is used to connect the wheel hub 4 located on the connecting platform The blade 5 on the wind turbine installation ship is hoisted above the expansion platform 8. At this time, the rotating mechanism 3 controls the auxiliary mechanism 2 to rotate, so that the hub 4 rotates, so that the blade 5 docks with the connecting port 6. At this time, the second hydraulic rod 203 starts to drive the limit ring 204 to shrink, and the first hydraulic rod 202 extends forward to reach the inside of the blade 5. Then the third hydraulic rod 206 starts to extend and abuts against the inner wall of the blade 5. Then the first hydraulic rod 202 shrinks, driving the blade 5 to be inserted into the connecting port 6, and the single blade 5 is assembled. Then the rotating mechanism 3 works, driving the auxiliary mechanism 2 to rotate again, so that the next connecting port 6 and the next blade 5 are docked, and then the assembly of the wind turbine is realized.

Claims

1. An offshore wind power expansion platform and impeller combination integrated device, characterized in that: include: A connecting platform (1), the connecting platform (1) is a partial structure of the platform deck; An expansion platform (8), the expansion platform (8) is fixed on the side of the connecting platform (1) and extends outwardly in the air, and a rotating mechanism (3) is installed on the expansion platform (8); The auxiliary mechanism (2) is used to install the wheel hub (4), the auxiliary mechanism (2) is fixed on the auxiliary mechanism (2), and the rotating mechanism (3) drives the auxiliary mechanism (2) to rotate on the expansion platform (8).

2. The offshore wind power expansion platform and impeller combination integrated device according to claim 1, characterized in that: A crane (9) is installed on the connecting platform (1), a hoist (10) is installed on the crane (9), and the hoist (10) has a cable (11) that is bound with the blade (5) for hoisting.

3. The offshore wind power expansion platform and impeller combination integrated device according to claim 1, characterized in that: It also includes a mounting ring (7) mounted on the blade (5) when the blade (5) is hoisted at a later stage, and the mounting ring (7) is larger than the connecting port (6).

4. The offshore wind power expansion platform and impeller combination integrated device according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a body (201) fixedly connected to the top of the connecting block (305), the body (201) being connected to a moving block (205) via a retractable first hydraulic rod (202), and the moving block (205) being radially mounted with a retractable third hydraulic rod (206); The outer circumference of the moving block (205) can only be slidably mounted with a limiting ring (204), the limiting ring (204) is connected to the machine body (201) via a retractable second hydraulic rod (203), and the second hydraulic rod (203) provides power to push the limiting ring (204).

5. The offshore wind power expansion platform and impeller combination integrated device as claimed in claim 4, characterized in that: The moving block (205) is provided with a limiting groove (207), and the limiting ring (204) is provided with a protrusion and the limiting groove (207) and can only slide along the axial direction of the moving block (205).

6. The offshore wind power expansion platform and impeller combination integrated device according to claim 1, characterized in that: The rotating mechanism (3) comprises a motor (301) whose housing portion is fixed on the expansion platform (8); a first gear (302) is fixed to the output shaft of the motor (301); the first gear (302) is meshed with a second gear (303); a connecting block (305) is fixedly connected inside the second gear (303); and the connecting block (305) is rotatably connected to the expansion platform (8) via a ball bearing (306).

7. The offshore wind power expansion platform and impeller combination integrated device according to claim 6, characterized in that: A limiting block (304) is fixed at the bottom of the connecting block (305).

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