A method for hoisting parts of an offshore wind turbine

Abstract

The application discloses a kind of offshore wind turbine unit parts hoisting method, comprising: offshore wind turbine unit parts hoisting distribution system, on one hoisting arm, realize the hoisting process of adjusting the tilt angle of the nose installed with three blades.Through with main hoisting rope, it is ensured that two blades above the nose are stable in balance lever assembly, adjust hoisting rope to pass through the pulley set on the support rod to adjust the lower blade pulling, realize the hoisting process of adjusting the tilt angle of the nose installed with three blades, solve the problem that single-arm single rope hoisting nose with three blades swings and is inconvenient to adjust and adjust.

Description

Technical Field

[0001] This invention relates to a method for hoisting components of offshore wind turbines, belonging to the field of offshore wind power construction technology. Background Technology

[0002] When hoisting components such as a three-bladed turbine head in a seawater operation environment, if the working height is limited and only one boom is available, using a single boom and single rope (such as the hoisting distribution system disclosed in Chinese Patent Publication No. CN115583564A) to hoist a three-bladed turbine head can cause the blades on the turbine head to sway and tilt during hoisting, making it difficult to adjust and straighten them. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a method for hoisting offshore wind turbine components.

[0004] The present invention is achieved through the following technical solutions.

[0005] The present invention provides a method for hoisting offshore wind turbine components, comprising: presenting an offshore wind turbine component hoisting distribution system, and performing a hoisting process on a hoisting arm to adjust the tilt angle of the turbine head with three blades.

[0006] The hoisting process is as follows:

[0007] The main lifting rope, auxiliary control lifting rope, and adjusting lifting rope can all be installed on the same lifting arm. The auxiliary control lifting rope is fixed to the gravity ball of the balance bar assembly, so that the balance bar assembly is stable in a vertical position. The main lifting rope passes through the dampers in the through holes on both sides of the obstruction plate of the balance bar assembly and connects to the clamping mechanism on the upper blade. The adjusting lifting rope passes around the pulley block on the support rod and connects to the clamping mechanism on the lower blade. The pulley block of the support rod forms a triangular pyramid-like skeleton structure with a ridge height, which is not easy to swing, so that the machine head with three blades is stably upright for lifting.

[0008] When the head of the machine with three blades tilts during hoisting, the two blades above the head are stabilized by the main hoisting rope on the balance bar assembly, and the tilt angle of the head with three blades is adjusted by adjusting the hoisting rope around the pulley block on the support rod to pull the blades below.

[0009] The offshore wind turbine component hoisting and distribution system includes:

[0010] A lifting boom that provides a load-bearing foundation;

[0011] The main lifting rope consists of two ropes that can be raised and lowered and installed on the lifting boom.

[0012] The auxiliary control rope is located outside the main lifting rope. The auxiliary control rope can be raised and lowered on the lifting boom. The position of the auxiliary control rope on the lifting boom is higher than that of the main lifting rope.

[0013] The adjusting rope is located inside the main lifting rope and can be raised and lowered on the lifting boom;

[0014] The bottom of the auxiliary control rope is connected to a balance bar assembly.

[0015] The balance bar assembly includes two parallel obstruction plates; and two diagonal bars connecting the obstruction plates, the diagonal bars being two gravity balls connected between the two obstruction plates and installed between the two diagonal bars and the two obstruction plates.

[0016] The obstruction plate has through holes for the auxiliary control rope to pass through and be fixed to the gravity ball. The gravity ball provides gravity to overcome wind resistance and ensure that the balance bar assembly is stable and vertical.

[0017] Both sides of the obstruction plate are provided with through holes, and dampers that provide swing damping are installed in the through holes. Two main suspension ropes pass through the dampers in the through holes on both sides of the obstruction plate.

[0018] It also includes a clamping mechanism that is clamped to the blades on the machine head. Two main suspension ropes pass through the dampers in the through holes on both sides of the obstructing horizontal plate and are connected to the clamping mechanism on the upper blade. A rod is installed between the clamping mechanisms on the upper blade. A support rod extends horizontally backward from the back of the rod, and a pulley block is installed on the support rod.

[0019] The lower end of the adjusting rope passes over the pulley block on the support rod and is connected to the clamping mechanism on the lower blade.

[0020] The beneficial effects of this invention are as follows: by using the main hoisting rope to ensure the stability of the two blades above the machine head on the balance bar assembly, and adjusting the hoisting rope to pull the lower blades by passing around the pulley group on the support rod, the hoisting process of adjusting the tilt angle of the machine head with three blades is realized. This solves the problem of swinging and tilting that is inconvenient to adjust and straighten when hoisting a machine head with three blades with a single arm and a single rope. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the present invention;

[0022] Figure 2 Therefore Figure 1 The diagram on the right is based on this;

[0023] In the diagram: 1-Main hoisting rope; 2-Auxiliary control hoisting rope; 3-Adjusting hoisting rope; 4-Balance bar assembly; 41-Obstruction plate; 42-Diagonal bar; 43-Gravity ball; 5-Clamping mechanism; 52-Support rod; 53-Pulley block; 6-Machine head. Detailed Implementation

[0024] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0025] like Figures 1 to 2 As shown.

[0026] This application discloses a hoisting and distribution system for offshore wind turbine components, comprising:

[0027] The main lifting rope 1 can be lifted and installed on the lifting arm, and there are two main lifting ropes 1;

[0028] An auxiliary control rope 2 can be lifted and installed on the lifting arm. The auxiliary control rope 2 is located outside the main lifting rope 1, and the position of the auxiliary control rope 2 on the lifting arm is higher than that of the main lifting rope 1.

[0029] An adjustable hoisting rope 3 is mounted on the lifting arm and is located inside the main hoisting rope 1.

[0030] The bottom of the auxiliary control rope 2 is connected to a balance bar assembly 4; the balance bar assembly 4 includes two parallel obstruction plates 41; an inclined bar 42 connecting the obstruction plates 41, the inclined bar 42 being two bars connected between the two obstruction plates 41, and a gravity ball 43 installed between the two bars and the two obstruction plates 41; the obstruction plates 41 are provided with through holes for the auxiliary control rope 2 to pass through and be fixed to the gravity ball 43, and the gravity ball 43 provides gravity to overcome wind resistance and ensure that the balance bar assembly 4 is stably upright.

[0031] Both ends of the obstruction plate 41 are provided with through holes, and dampers that provide swing damping are installed in the through holes. Two main suspension ropes 1 pass through the dampers in the through holes on both sides of the obstruction plate 41.

[0032] It also includes a clamping mechanism 5 that is clamped and installed on the blades on the head 6. Two main suspension ropes 1 pass through the dampers in the through holes on both sides of the obstructing horizontal plate 41 and are connected to the clamping mechanism 5 on the upper blade. A rod is installed between the clamping mechanisms 5 on the upper blade. A support rod 52 extends horizontally backward from the back of the rod. A pulley block 53 is installed on the support rod 52. The lower end of the adjusting suspension rope 3 passes around the pulley block 53 on the support rod 52 and is connected to the clamping mechanism 5 on the lower blade. The clamping mechanism 5 is a blade clamping mechanism.

[0033] This application discloses a method for hoisting offshore wind turbine components, comprising: presenting an offshore wind turbine component hoisting distribution system, and performing a hoisting process on a hoisting arm to adjust the tilt angle of the turbine head with three blades.

[0034] The main lifting rope 1, auxiliary control lifting rope 2, and adjusting lifting rope 3 can all be lifted and installed on the same lifting arm. The auxiliary control lifting rope 2 is fixed to the gravity ball 43 of the balance bar assembly 4, so that the balance bar assembly 4 is stably vertical. The main lifting rope 1 passes through the damper in the through hole on both sides of the obstruction plate 41 of the balance bar assembly 4 and is connected to the clamping mechanism 5 on the upper blade. The adjusting lifting rope 3 passes around the pulley group 53 on the support rod 52 and is connected to the clamping mechanism 5 on the lower blade. The pulley group 53 of the support rod 52 forms a triangular pyramid-like skeleton structure with a ridge height, which is not easy to swing, so that the machine head 6 with three blades is stably upright for lifting.

[0035] When the head 6 with three blades tilts during the hoisting process, the two blades above the head 6 are stabilized by the main hoisting rope 1 on the balance bar assembly 4, and the hoisting rope 3 is adjusted to pull the lower blades by passing around the pulley block 53 on the support rod 52. This process adjusts the tilt angle of the head 6 with three blades, thus solving the problem of swinging and tilting that is difficult to adjust and straighten when hoisting a head 6 with three blades with a single arm and single rope.

Claims

1. A method for hoisting components of an offshore wind turbine, characterized in that, The system presents the distribution system for the hoisting of offshore wind turbine components, and demonstrates how the tilt angle of the turbine nose with three blades can be adjusted on a single hoisting arm. The hoisting process is as follows: The main lifting rope (1), auxiliary control lifting rope (2), and adjusting lifting rope (3) can all be lifted and installed on the same lifting arm. The auxiliary control lifting rope (2) is fixed to the gravity ball (43) of the balance bar assembly (4), so that the balance bar assembly (4) is stably vertical. The main lifting rope (1) passes through the damper in the through hole on both sides of the obstruction plate (41) of the balance bar assembly (4) and connects to the clamping mechanism (5) on the upper blade. The adjusting lifting rope (3) passes around the pulley group (53) on the support rod (52) and connects to the clamping mechanism (5) on the lower blade. The pulley group (53) of the support rod (52) forms a triangular pyramid skeleton structure with the height of the edge, which is not easy to swing, so that the machine head (6) with three blades is stably upright for lifting. When the head (6) with three blades tilts during the hoisting process, the two blades above the head (6) are kept stable by the main hoisting rope (1) on the balance bar assembly (4), and the hoisting rope (3) is adjusted by passing around the pulley group (53) on the support rod (52) to pull and adjust the blades below, thereby adjusting the tilt angle of the head with three blades. The balance bar assembly (4) includes two parallel obstruction plates (41); and two diagonal bars (42) connecting the obstruction plates (41). The diagonal bars (42) are two gravity balls (43) connected between the two obstruction plates (41) and installed in the two diagonal bars (42) and the two obstruction plates (41). The obstruction plate (41) has a through hole for the auxiliary control suspension rope (2) to pass through and be fixed to the gravity ball (43). The gravity ball (43) provides gravity to overcome wind resistance and ensure that the balance bar assembly (4) is stably and vertically erected. Both sides of the obstruction plate (41) are provided with through holes, and dampers that provide swing damping are installed in the through holes. Two main suspension ropes (1) pass through the dampers in the through holes on both sides of the obstruction plate (41). It also includes a clamping mechanism (5) that is clamped and installed on the blades on the machine head (6). Two main hoisting ropes (1) pass through the dampers in the through holes on both sides of the obstructing horizontal plate (41) and are connected to the clamping mechanism (5) on the upper blade. A rod is installed between the clamping mechanisms (5) on the upper blade. A support rod (52) extends horizontally backward from the back of the rod. A pulley block (53) is installed on the support rod (52). The lower end of the adjusting rope (3) passes over the pulley group (53) on the support rod (52) and is connected to the clamping mechanism (5) on the lower blade.

2. The method for hoisting offshore wind turbine components as described in claim 1, characterized in that: The offshore wind turbine component hoisting and distribution system includes: A lifting boom that provides a load-bearing foundation; The main lifting rope (1) consists of two ropes that can be lifted and lowered and installed on the lifting arm. The auxiliary control rope (2) is located outside the main lifting rope (1). The auxiliary control rope (2) can be lifted and installed on the lifting arm. The position of the auxiliary control rope (2) on the lifting arm is higher than that of the main lifting rope (1). The adjusting rope (3) is located inside the main lifting rope (1). The adjusting rope (3) can be raised and lowered on the lifting arm. The bottom of the auxiliary control rope (2) is connected to a balance bar assembly (4).

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