Offshore wind power construction hoisting equipment

Abstract

The present invention discloses an offshore wind power construction hoisting device, which relates to the field of offshore wind turbine hoisting, including a hanger, the hanger is installed on a platform, the hanger is connected to a reel and two sets of traction ropes, the two sets of traction ropes are commonly connected to a swing arm, the top of the swing arm is connected to a workbench, the workbench is rotatably connected to the swing arm and always remains horizontal, the workbench is connected to a hoisting part, the hoisting part includes: an upper hoisting component, a middle fixing component and a lower positioning component, the lower positioning component is connected to the bottom of the fixing rod and is connected to an adjustment component for adjusting the wind turbine, the adjustment component is used to adjust the hoisting state of the wind turbine and control the rotation of the wind turbine. The advantage of the present invention is that by positioning and fixing the upper, middle and lower parts of the wind turbine, the stable hoisting of the entire wind turbine can be achieved, and the overall inclination angle and rotation angle of the wind turbine can be adjusted, thereby improving installation efficiency.

Description

Technical Field

[0001] The present invention relates to the field of offshore wind turbine hoisting, and in particular to offshore wind power construction hoisting equipment. Background Art

[0002] At present, offshore wind turbines are mainly installed through lifting equipment. The installation methods mainly include split installation and integral installation. The integral installation is to complete the wind turbine assembly on the offshore platform or on land, and then transport the entire wind turbine to the designated sea area, and then install the wind turbine directly on the installation base. The advantage is that the offshore operation time is shorter.

[0003] In the prior art, double-hook cranes on large offshore crane ships are mostly used. During the hoisting process, the assembled wind turbine is easily affected by wind and the shaking of the ship, causing the wind turbine to swing greatly during installation. Moreover, when the wind turbine is installed on the mounting base, it is impossible to adjust it according to the current state of the wind turbine, making the installation process more difficult. Moreover, when adjusting the wind turbine by setting an adjustment structure, the general adjustment position is located at its lower part, while the hoisting position is located at its upper part. How to ensure the stability of the wind turbine during adjustment also has certain problems. Based on this, the present invention designs an offshore wind power construction hoisting equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose an offshore wind power construction hoisting equipment.

[0005] An offshore wind power construction hoisting device is used to hoist a wind turbine, wherein the wind turbine includes a fixing rod, a chassis, a rotating shaft and a wind rotor. The device includes:

[0006] A hanger is installed on a platform, the hanger is connected to a winding wheel and two sets of traction ropes, the two sets of traction ropes are respectively connected to a connecting wheel, the two connecting wheels are connected to a workbench, the workbench is connected to a swing arm and is rotatably connected to the swing arm, the other end of the swing arm is rotatably connected to the platform, the workbench is connected to a spirit level and always maintains a horizontal state, the workbench is connected to a lifting part, and the lifting part includes:

[0007] An upper-level lifting assembly, the upper-level lifting assembly comprising a pair of hooks;

[0008] A middle-level fixing assembly, comprising a fixing platform mounted in the middle of the fixing rod, with a pair of lifting ports symmetrically provided on the top of the fixing platform corresponding to the positions of the pair of lifting hooks, the lifting ports being fixed to the top of the fixing platform by a plurality of ropes;

[0009] A lower positioning assembly is connected to the bottom of the fixing rod and is connected to an adjustment assembly for adjusting the fixing rod. The adjustment assembly is used to adjust the hoisting state of the wind turbine and control the rotation of the wind turbine;

[0010] The upper hoisting assembly also includes two connecting platforms, which are respectively connected to the ends of a corresponding group of traction ropes. Each connecting platform is provided with a guiding part that is slidably connected to the workbench. A limiting assembly is provided at the bottom of the workbench. The limiting assembly limits the top part of the wind turbine and allows the top of the wind turbine to have movable space. The limiting assembly allows the wind turbine to detach from it only when the wind turbine is in a vertical state.

[0011] In the above-mentioned offshore wind power construction hoisting equipment, a ring-shaped sleeve is connected to the fixing platform, and the sleeve is fixed to a threaded hole opened in the middle of the fixing rod by a plurality of bolts arranged in a ring.

[0012] In the above-mentioned offshore wind power construction hoisting equipment, the lower positioning assembly includes a positioning platform, which is connected to the bottom of the fixed platform through multiple traction ropes 2, and the positioning platform is connected to the lower part of the fixed rod through a sleeve 2, and the sleeve 2 is fixed to the threaded hole opened in the lower part of the fixed rod through multiple bolts 2.

[0013] In the above-mentioned offshore wind power construction hoisting equipment, the adjustment component includes four traction ropes three, and the four traction ropes three are respectively located at the four corners of the positioning platform. The two traction ropes three located on the front side are respectively connected to the winding wheel and connected to the winding wheel two through the winding wheel, and the two traction ropes three located on the rear side are connected to the winding wheel three, and the winding wheel is connected to a moving part, and the winding wheel two and the winding wheel three are both connected to a rotating motor.

[0014] In the above-mentioned offshore wind power construction hoisting equipment, the moving component includes a hydraulic cylinder, the fixed end of the hydraulic cylinder is installed on the platform, and the movable end of the hydraulic cylinder is connected to the winding wheel.

[0015] In the above-mentioned offshore wind power construction hoisting equipment, the limit assembly includes a disc fixed to the bottom of the workbench, a circular groove is opened in the disc, a limit shaft is coaxially arranged in the circular groove, the limit shaft is fixed to the top of the chassis, and the inner bottom of the circular groove is fixedly connected to a guide rod, and the guide rod is inserted into the T-slot opened at the top of the limit shaft, the T-slot has an upper part and a lower part, the diameter of the upper part is smaller than the lower part, and the fixed end of the guide rod located in the T-slot is connected to a sphere, the sphere and the upper part of the T-slot are set with the same diameter, and a guide ring with a conical structure is provided at the connection between the upper and lower parts of the T-slot, and the inner wall of the lower part is against the outer wall of the sphere through a plurality of annular springs.

[0016] In the above-mentioned offshore wind power construction hoisting equipment, the guiding part includes a card plate and a gusset plate, the gusset plate is provided with a sliding groove to meet the sliding needs of the card plate, the card plate is fixed on the side of the connecting platform, and the gusset plate is fixed on the workbench.

[0017] Compared with the existing technology, the advantages of the present invention are:

[0018] 1. When in use, the present invention's hoisting assembly comprises an upper hoisting assembly, a middle fixing assembly, and a lower positioning assembly. By positioning and securing the upper, middle, and lower sections of the wind turbine, the hoisting system achieves stable installation. The upper limiter assembly ensures that the fixing rods within the wind turbine remain in a position that allows the top of the wind turbine to remain movable during adjustments. Furthermore, it locks the wind turbine in place during adjustments. The limiter assembly can only be disengaged from the wind turbine when the wind turbine is in a vertical position, ensuring a secure installation.

[0019] 2. During use, the lower positioning assembly of the present invention is also connected to an adjustment assembly. This adjustment assembly allows the tilt and rotation angles of the entire wind turbine to be adjusted. This prevents the wind turbine from tilting or slightly rotating due to wind and wave forces when assembled with the mounting base, facilitates real-time adjustments during installation, and improves installation efficiency. Furthermore, during marine transport of the entire turbine, the adjustment assembly allows the wind turbine to be swung outward, preventing the wind turbine from coming too close to the swing arm, which could pose a safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of an offshore wind power construction hoisting equipment proposed by the present invention.

[0021] Figure 2 This is a structural schematic diagram of the rear side of an offshore wind power construction hoisting equipment proposed by the present invention.

[0022] Figure 3 This is a structural schematic diagram of the upper-level hoisting components of an offshore wind power construction hoisting equipment proposed by the present invention.

[0023] Figure 4 This is a structural diagram of a workbench in an offshore wind power construction hoisting equipment proposed by the present invention.

[0024] Figure 5 This is a structural schematic diagram of a middle-level fixing component of offshore wind power construction hoisting equipment proposed by the present invention.

[0025] Figure 6 This is a structural schematic diagram of the lower-level positioning components of an offshore wind power construction hoisting equipment proposed by the present invention.

[0026] Figure 7 This is a structural schematic diagram of an adjustment component in an offshore wind power construction hoisting equipment proposed by the present invention.

[0027] Figure 8 This is a structural schematic diagram of a limiting component in offshore wind power construction hoisting equipment proposed by the present invention.

[0028] Figure 9 for Figure 8 Enlarged schematic diagram of part A.

[0029] Figure 10 A schematic diagram of the structure of a wind turbine in an offshore wind power construction hoisting equipment proposed by the present invention

[0030] In the figure: 1 hanger, 101 platform, 102 winding wheel 1, 103 traction rope 1, 104 swing arm, 105 workbench, 106 connecting wheel, 2 upper lifting assembly, 21 hook, 22 connecting platform, 23 guide part, 3 wind turbine, 31 fixing rod, 32 chassis, 33 rotating shaft, 34 wind wheel, 4 middle fixing assembly, 41 fixing platform, 42 lifting port, 43 sleeve 1, 44 bolt 1, 5 lower positioning assembly, 51 positioning platform, 52 traction rope 2, 53 sleeve 2, 54 bolt 2, 6 adjustment assembly, 61 traction rope 3, 62 winding wheel, 63 winding wheel 2, 64 winding wheel 3, 7 limit assembly, 71 disc, 72 circular groove, 73 limit shaft, 74 guide rod, 75 T-slot, 76 sphere, 77 guide ring, 78 spring, 8 moving part, 81 hydraulic cylinder, 9 buffer platform. DETAILED DESCRIPTION

[0031] Reference Figures 1 to 10 An offshore wind power construction hoisting device is used to hoist a wind turbine 3, wherein the wind turbine 3 includes a fixing rod 31, a chassis 32, a rotating shaft 33 and a wind wheel 34. The device includes:

[0032] Hanger 1 is installed on platform 101. Hanger 1 is connected to winding wheel 102 and two sets of traction ropes 103. The two sets of traction ropes 103 are connected to swing arm 104. The top of swing arm 104 is connected to workbench 105. Workbench 105 is rotatably connected to swing arm 104 and always keeps horizontal. Workbench 105 is connected to lifting part, which includes:

[0033] The upper hoisting assembly 2 includes a pair of hooks 21;

[0034] The middle-level fixing assembly 4 includes a fixing platform 41, which is installed in the middle of the fixing rod 31. A pair of lifting holes 42 corresponding to the positions of the pair of hooks 21 are symmetrically provided on the top of the fixing platform 41. The lifting holes 42 are fixed to the top of the fixing platform 41 by multiple ropes. The wind turbine 3 is hoisted by the cooperation between the hooks 21 and the lifting holes 42.

[0035] The lower positioning component 5 is connected to the bottom of the fixed rod 31 and is connected to the adjustment component 6 for adjusting the wind turbine 3. The adjustment component 6 is used to adjust the hoisting state of the wind turbine 3 and control the rotation of the wind turbine 3. The overall inclination angle and rotation angle of the wind turbine 3 are adjusted by the adjustment component 6. This can avoid the problem of the wind turbine 3 tilting or slightly rotating due to the influence of wind and waves when the wind turbine 3 is assembled with the mounting base, facilitates real-time adjustment during installation, and improves installation efficiency. At the same time, when transporting the entire machine at sea, the wind turbine 3 can be controlled to be in a tilted outward swing state through the adjustment component 6 to avoid the wind turbine 3 being too close to the swing arm 104, causing safety hazards.

[0036] The upper hoisting assembly 2 also includes two connecting platforms 22, which are respectively connected to the ends of a corresponding group of traction ropes 103. Each connecting platform 22 is provided with a guide part 23 that is slidably connected to the workbench 105. The moving trajectory of the connecting platform 22 is controlled by the guide part 23 to reduce the shaking of the two hooks 21 during hoisting. A limiting assembly 7 is provided at the bottom of the workbench 105. The limiting assembly 7 limits the top part of the chassis 32. An annular sleeve 43 is connected to the fixed platform 41. The sleeve 43 is fixed to the threaded hole opened in the middle of the fixed rod 31 by multiple bolts arranged in a ring.

[0037] The lower positioning assembly 5 includes a positioning platform 51, which is connected to the bottom of the fixed platform 41 through multiple traction ropes 52. The positioning platform 51 is connected to the lower part of the fixed rod 31 through a sleeve 53, and the sleeve 53 is fixed to the threaded hole opened in the lower part of the fixed rod 31 through multiple bolts.

[0038] The adjustment component 6 includes four traction ropes three 61, and the four traction ropes three 61 are respectively located at the four corners of the positioning platform 51. The two traction ropes three 61 located on the front side are respectively connected to the winding wheel 62 and connected to the winding wheel two 63 through the winding wheel 62. The two traction ropes three 61 located on the rear side are connected to the winding wheel three 64. The winding wheel 62 is connected to the moving part 8. The winding wheel two 63 and the winding wheel three 64 are both connected to a rotating motor. The moving part 8 includes a hydraulic cylinder 81. The fixed end of the hydraulic cylinder 81 is installed on the platform 101, and the movable end of the hydraulic cylinder 81 is connected to the winding wheel 62.

[0039] The limiting assembly 7 includes a disc 71 fixed to the bottom of the workbench 105, a circular groove 72 is provided in the disc 71, a limiting shaft 73 is coaxially arranged in the circular groove 72, the limiting shaft 73 is fixed to the top of the chassis 32, and a guide rod 74 is fixedly connected to the inner bottom of the circular groove 72. The guide rod 74 is inserted into the T-shaped groove 75 provided on the top of the limiting shaft 73. The T-shaped groove 75 has an upper part and a lower part. The diameter of the upper part is smaller than that of the lower part. The fixed end of the guide rod 74 located in the T-shaped groove 75 is connected to a sphere 76. The sphere 76 is set with the same diameter as the upper part of the T-shaped groove 75. The connection between the upper part and the lower part of the T-shaped groove 75 A conical guide ring 77 is provided at the position where the inner wall of the lower part is abutted against the outer wall of the ball 76 by a plurality of annular springs 78. The position of the limit assembly 7 is limited to the T-slot 75. The characteristics of the ball 76 enable the adjustability of the top position of the wind turbine 3, thereby adapting to the angle adjustment of the wind turbine 3, so that the upper end of the wind turbine 3 is always kept in a stable state under the conditions of transportation of the wind turbine 3 at different angles. In the limit assembly 7, since the ball 76 and the upper part of the T-slot 75 are arranged with the same diameter, and the T-slot 75 is fixed to the top of the chassis 32 by the limit shaft 73, the ball 76 is allowed to pass through the T-slot 75 only when the guide rod 74 connected to the ball 76 remains in a vertical state. In this way, when the angle and position of the wind turbine 3 are adjusted, its upper part is always kept in a locked state, which can improve the safety and stability of the transportation of the wind turbine 3, and at the same time improve the installation accuracy of the wind turbine 3 during installation, thereby increasing the service life of the wind turbine 3.

[0040] When the present invention is in use, it is hoisted through the upper hoisting component 2, wherein the middle-level fixing component 4 fixes the middle part of the fixing rod 31, and then the two hoisting holes 42 at the top of the middle-level fixing component 4 are connected with the two hooks 21 at the bottom of the upper hoisting component 2 to realize the hoisting work of the wind turbine 3, and then the lower-level positioning component 5 is used to limit the bottom of the fixing rod 31, thereby maintaining the stability of the wind turbine 3.

[0041] When it is necessary to adjust the hoisting angle of the wind turbine 3, the positioning platform 51 in the lower positioning component 5 is pushed by the adjustment component 6 to adjust the angle and position. When the position needs to be adjusted, the two winding wheels 3 64 are driven to move the positioning platform 51 toward the platform 101, and the hydraulic cylinder 81 and the winding wheel 2 64 can drive the positioning platform 51 toward the direction away from the platform 101. When the angle needs to be adjusted, the two directions of rotation can be achieved by controlling a winding wheel 2 63 and a winding wheel 3 64 on the opposite side. The rotation amplitude can be adjusted by the hydraulic cylinder 81, so that the angle of the wind turbine 3 during the overall transportation is adjustable, which can be used for obstacle avoidance and solve the problem of the wind turbine 3 tilting or slightly rotating due to the influence of wind and waves when the wind turbine 3 is assembled with the installation base, and facilitates real-time adjustment during installation, thereby improving installation efficiency. At the same time, when transporting the entire machine at sea, the wind turbine 3 is controlled to be in an outward swing state to avoid the wind turbine 3 being too close to the swing arm 104, which may cause a safety hazard.

[0042] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. An offshore wind power construction hoisting equipment, characterized in that: Used for hoisting a wind turbine (3), the wind turbine (3) comprising a fixing rod (31), a chassis (32), a rotating shaft (33) and a wind wheel (34), the device comprising: A hanger (1) is installed on a platform (101), the hanger (1) is connected to a winding wheel (102) and two sets of traction ropes (103), the two sets of traction ropes (103) are respectively connected to a connecting wheel (106), the two connecting wheels (106) are connected to a workbench (105), the workbench (105) is connected to a swing arm (104) and is rotatably connected to the swing arm, the other end of the swing arm (104) is rotatably connected to the platform (101), the workbench (105) is connected to a spirit level and always maintains a horizontal state, the workbench (105) is connected to a lifting part, and the lifting part includes: An upper-level hoisting assembly (2), the upper-level hoisting assembly (2) comprising a pair of hooks (21); A middle-layer fixing assembly (4), the middle-layer fixing assembly (4) comprising a fixing platform (41), the fixing platform (41) being mounted in the middle of the fixing rod (31), the top of the fixing platform (41) being symmetrically provided with a pair of hanging openings (42) corresponding to the positions of the pair of hanging hooks (21), the hanging openings (42) being fixed to the top of the fixing platform (41) by means of a plurality of ropes; A lower positioning assembly (5), the lower positioning assembly (5) being connected to the bottom of the fixing rod (31) and being connected to an adjustment assembly (6) for adjusting the fixing rod (31), the adjustment assembly (6) being used to adjust the hoisting state of the wind turbine (3) and to control the rotation of the wind turbine (3); The upper hoisting assembly (2) further includes two connecting platforms (22), the two connecting platforms (22) being respectively connected to the ends of a corresponding group of traction ropes (103), each of the connecting platforms (22) being provided with a guide portion (23) slidably connected to the workbench (105), a limiting assembly (7) being provided at the bottom of the workbench (105), the limiting assembly (7) limiting the top portion of the wind turbine (3) and allowing the top of the wind turbine (3) to have a movable space, and the limiting assembly (7) allowing the wind turbine (3) to detach from the wind turbine (3) only when the wind turbine (3) is in a vertical state; The limiting assembly (7) includes a disc (71) fixed to the bottom of the workbench (105), a circular groove (72) is provided in the disc (71), a limiting shaft (73) is coaxially provided in the circular groove (72), the limiting shaft (73) is fixed to the top of the chassis (32), a guide rod (74) is fixedly connected to the inner bottom of the circular groove (72), the guide rod (74) is inserted into a T-shaped groove (75) provided on the top of the limiting shaft (73), and the T-shaped groove (75) has An upper part and a lower part, wherein the diameter of the upper part is smaller than that of the lower part, and a fixed end of the guide rod (74) located in the T-shaped groove (75) is connected to a sphere (76), and the sphere (76) and the upper part of the T-shaped groove (75) are arranged with the same diameter, and a guide ring (77) with a conical structure is provided at the connection between the upper part and the lower part of the T-shaped groove (75), and the inner wall of the lower part is abutted against the outer wall of the sphere (76) through a plurality of annular springs (78).

2. The offshore wind power construction hoisting equipment according to claim 1, characterized in that: An annular shaft sleeve (43) is connected to the fixing platform (41), and the shaft sleeve (43) is fixed to a threaded hole opened in the middle of the fixing rod (31) through a plurality of bolts (44) arranged in an annular manner.

3. The offshore wind power construction hoisting equipment according to claim 1, characterized in that: The lower positioning assembly (5) includes a positioning platform (51), the positioning platform (51) is connected to the bottom of the fixed platform (41) through a plurality of traction ropes (52), the positioning platform (51) is connected to the lower part of the fixed rod (31) through a shaft sleeve (53), and the shaft sleeve (53) is fixed to a threaded hole opened in the lower part of the fixed rod (31) through a plurality of bolts (54).

4. The offshore wind power construction hoisting equipment according to claim 3, characterized in that: The adjustment assembly (6) includes four traction ropes three (61), and the four traction ropes three (61) are respectively located at four corners of the positioning platform (51). The two traction ropes three (61) located on the front side are respectively connected to the winding wheel (62) and connected to the winding wheel two (63) through the winding wheel (62). The two traction ropes three (61) located on the rear side are connected to the winding wheel three (64). The winding wheel (62) is connected to the moving part (8), and the winding wheel two (63) and the winding wheel three (64) are both connected to a rotating motor.

5. The offshore wind power construction hoisting equipment according to claim 4, characterized in that: The moving component (8) comprises a hydraulic cylinder (81), a fixed end of the hydraulic cylinder (81) is mounted on the platform (101), and a movable end of the hydraulic cylinder (81) is connected to the winding wheel (62).

6. The offshore wind power construction hoisting equipment according to claim 1, characterized in that: The guide portion (23) comprises a card plate (231) and a gusset plate (232), wherein the gusset plate (232) is provided with a sliding groove for the card plate (231) to slide, the card plate (231) is fixed to a side surface of the connecting platform (22), and the gusset plate (232) is fixed to the workbench (105).

Images