Positioning and guiding device for hoisting of large wind power piece

Abstract

The utility model provides a positioning and guiding device for hoisting a large wind power piece. The positioning and guiding device comprises a flexible connecting base, a hoisting guiding assembly and a hoisting alignment assembly, the two flexible connecting bases are installed on the surfaces of two hoisted objects needing to be in butt joint correspondingly and serve as installation foundations of the hoisting guide assembly and the hoisting alignment assembly. The hoisting guide assembly comprises a high-definition camera, a first laser transmitter and a first laser receiver; the guide rail is used for guiding a first hoisted object and a second hoisted object to approach; the hoisting alignment assembly comprises a second laser transmitter and a second laser receiver and is used for alignment in the splicing process of the first hoisted object and the second hoisted object. The device has the advantages that the hoisting alignment precision is higher, and accurate hoisting is realized.

Description

Technical Field

[0001] This utility model relates to the field of wind power construction technology, specifically to a positioning and guiding device for hoisting large wind power components. Background Technology

[0002] Wind power generation mainly adopts a modular installation method, generally dividing a wind turbine into four major components: tower, nacelle, hub, and blades. Among them, tower installation is relatively simple, while the nacelle, hub, and blades use different pre-assembly methods depending on the installation mode, usually divided into two types: integral rotor installation and single blade installation.

[0003] The integral impeller hoisting method involves pre-assembling the wind turbine blades and hub on the installation platform deck after the tower and nacelle are installed. Then, a crane is used to turn the impeller over, lift it, and connect it to the nacelle. The single-blade hoisting method involves lifting the three blades one by one and connecting them to the hub after the tower, nacelle, and hub are all installed. The single-blade hoisting method requires precise alignment and joining of the blades and hub at high altitude.

[0004] Regardless of the method used, the bolts must be accurately inserted into the corresponding bolt holes on the hub. Generally, the diameter of the flange bolt holes is 16-48 mm, and the docking process requires that the relative movement between the blades and the hub be only on the millimeter level for a short period. During docking, if the relative movement between the blades and the hub is too large and causes a collision, it can easily damage the bolts at the blade root and the blade structure.

[0005] To ensure stability during the hoisting and docking process, multiple guy ropes are usually extended from the single blade spreader. The blade's aerial attitude is stabilized and corrected by installing a power winch on the platform deck or crane, as well as by using manual assistance. However, this method is quite difficult to implement. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a wind power large component hoisting positioning and guiding device with higher hoisting alignment accuracy and enabling precise hoisting.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a wind power large component hoisting positioning and guiding device, including a flexible connecting base, a hoisting guiding component and a hoisting alignment component;

[0008] Two flexible connecting bases are provided, which are respectively used to install on the surfaces of the two objects to be hoisted that need to be docked, serving as the installation base for the hoisting guide assembly and the hoisting alignment assembly;

[0009] The hoisting guidance assembly includes a high-definition camera, a first laser emitter, and a first laser receiver; the high-definition camera and the first laser emitter are a set and are used to be installed on a first suspended object, the first laser receiver is used to be installed on a second suspended object, and the hoisting guidance assembly is used to guide the first suspended object and the second suspended object closer together;

[0010] The hoisting alignment assembly includes a second laser emitter and a second laser receiver, which are respectively installed on the first object to be hoisted and the second object to be hoisted. The alignment direction of the second laser emitter and the second laser receiver is consistent with the splicing direction of the first object to be hoisted and the second object to be hoisted, and is used for alignment during the splicing process of the first object to be hoisted and the second object to be hoisted.

[0011] Preferably, the flexible connecting base is a flexible rubber strip, on which a strong magnetic adsorption block is disposed, and a screw and nut are provided at the upper end of the strong magnetic adsorption block. The flexible rubber strip is fixed to the surface of the suspended object by the strong magnetic adsorption block.

[0012] Preferably, the high-definition camera is mounted on the flexible connecting base via a matching universal joint and connecting rod base.

[0013] Preferably, the first laser emitter is mounted on the flexible connecting base via a matching universal joint and connecting rod base.

[0014] Preferably, the high-definition camera and the first laser emitter are installed in the same direction, and the detection directions of the high-definition camera and the first laser emitter coincide in the vertical direction.

[0015] Preferably, the first laser receiver is a spherical laser reflector.

[0016] Preferably, the second laser receiver is a planar laser reflector.

[0017] Preferably, the outer contours of the mating and splicing portions of the first and second suspended objects are opposite each other in the shape of an arc or annulus.

[0018] Preferably, the hoisting guide assembly and the hoisting alignment assembly are mounted on the outer arc surface of the first and second objects to be hoisted via a flexible connecting base.

[0019] Preferably, the number of the hoisting alignment components is at least one.

[0020] This utility model has substantial features and advancements compared to the prior art. Specifically, this utility model utilizes a flexible connecting base as the installation foundation to cooperate with the suspended object, avoiding damage to the suspended object; it utilizes a hoisting guide component as a guiding reference, enabling the suspended object to approach in a relatively accurate direction when it is relatively far away; and it utilizes a hoisting alignment component as an alignment reference, enabling accurate docking of the suspended object after it approaches, thus achieving high-precision assembly of large wind power components. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of a wind power large component hoisting positioning and guiding device according to this utility model.

[0022] Figure 2 This is a schematic diagram of the installation of each component in the first object to be lifted in this utility model.

[0023] Figure 3 This is a schematic diagram of the installation of each component in the second object to be lifted in this utility model.

[0024] Figure 4 This is a schematic diagram of the structure of the strong magnet adsorption block in this utility model.

[0025] In the diagram: 1. Flexible connecting base; 2. High-definition camera; 3. First laser emitter; 4. First laser receiver; 5. Second laser emitter; 6. Second laser receiver; 7. Universal head; 10. First suspended object; 20. Second suspended object; 11. Strong magnetic adsorption block; 12. Screw; 13. Nut. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0027] like Figure 1 As shown, a wind power large component hoisting positioning and guiding device includes a flexible connecting base 1, a hoisting guide component, and a hoisting alignment component.

[0028] The flexible connecting base 1 uses a flexible rubber strip, on which a strong magnetic adsorption block 11 is mounted. A screw 12 and a nut 13 are installed at the upper end of each strong magnetic adsorption block 11. During temporary installation, the strong magnetic adsorption block 11 is adsorbed onto the surface of the wind turbine component, then the flexible rubber strip is applied to the surface of the wind turbine component, with the mounting hole passing through the screw 12. Finally, the flexible rubber strip is tightened with the nut 13 to complete the installation process. Two flexible connecting bases are provided, one for mounting on the surface of the two objects to be hoisted, serving as the mounting base for the hoisting guide assembly and the hoisting alignment assembly.

[0029] In this embodiment, the outer contours of the docking and splicing parts of the first suspended object 10 and the second suspended object 20 are arc-shaped or ring-shaped and facing each other. Therefore, the distribution of the hoisting guide assembly and the hoisting alignment assembly is arranged in an arc shape, which is more conducive to splicing and alignment.

[0030] The hoisting guidance assembly includes a high-definition camera 2, a first laser emitter 3, and a first laser receiver 4. The high-definition camera 2 and the first laser emitter 3 are a set and are used to install on the first suspended object 10. Specifically, the high-definition camera 2 and the first laser emitter 3 are both installed on the flexible connecting base through matching universal joints and connecting rod bases. The high-definition camera 2 and the first laser emitter 3 are installed in the same direction, and the detection directions of the high-definition camera 2 and the first laser emitter 3 coincide in the vertical direction.

[0031] The first laser receiver 4 is used to be installed on the second suspended object 20. Specifically, the first laser receiver is a spherical laser emitter, which can also be installed on a flexible connecting base through a matching universal joint and connecting rod base. The hoisting guide assembly is used to guide the first suspended object 10 and the second suspended object 20 closer together.

[0032] The hoisting alignment assembly includes a second laser emitter 5 and a second laser receiver 6. The second laser emitter 5 and the second laser receiver 6 are respectively used to install on the first suspended object 10 and the second suspended object 20. Specifically, the second laser emitter 5 and the second laser receiver 6 are also installed on the corresponding flexible connecting base through matching universal joints and connecting rod bases.

[0033] The alignment direction of the second laser emitter 5 and the second laser receiver 6 is consistent with the assembly direction of the first suspended object 10 and the second suspended object 20, and is used for alignment during the assembly process of the first suspended object 10 and the second suspended object 20. To ensure the accuracy of alignment, the second laser receiver 6 is a planar laser emitter.

[0034] Working principle explanation:

[0035] First, install the flexible connection base 1, the hoisting guide component, and the hoisting alignment component on the ground onto the splicing surface where the wind turbine components need to be connected and spliced, and adjust the installation position to match the parameters required for the connection.

[0036] After the large wind turbine components, namely the first suspended object 10 and the second suspended object 20, are hoisted into the air, the staff in the control room first observe them through a high-definition camera. When the first laser receiver 4 is observed to be within the measurement range, the first laser transmitter 3 is activated to emit a laser. Then, the relative angle between the first suspended object 10 and the second suspended object 20 is adjusted so that the first laser receiver 4 can transmit the reflected signal back to the first laser transmitter 3. The purpose of using a spherical laser reflector is to make it easier to reflect the laser. Its accuracy is relatively low, but it is sufficient for guiding the approach process. When the reflected laser signal is the strongest, or when it reaches the required value, the first suspended object 10 and the second suspended object 20 are suspended close to each other according to the guidance direction.

[0037] If the signal is lost during the approach, stop moving forward, and use a high-definition camera to locate the position, emit lasers, and return lasers to re-determine the direction information before continuing to approach.

[0038] When the distance between the first hoisted object 10 and the second hoisted object 20 is close, such as about 1m, the hoisting alignment component is activated.

[0039] First, since the hoisting guide assembly has already achieved a rough alignment of the docking direction during the guidance process, and since it is mainly used for directional guidance at long distances, the accuracy is slightly lower. The slightly lower accuracy can help to find the first laser receiver 4 more quickly and is less likely to lose the signal. Compared with the hoisting alignment device, the accuracy requirement for alignment is only limited.

[0040] Therefore, once the hoisting alignment component is activated, only slight angle adjustments to the first and second objects being hoisted are required to align the hoisting alignment component.

[0041] Specifically, the second laser transmitter 5 is activated to emit a laser signal, and then the relative angle between the first suspended object 10 and the second suspended object 20 is finely adjusted. Since the second laser receiver 6 is a planar laser reflector, the reflection accuracy is higher, which is more conducive to close-range alignment.

[0042] When the laser signal returns at its strongest, the angle will be adjusted and fixed, the moving speed will be reduced, and the two suspended objects will be guided to close together, continuing until the closure is complete.

[0043] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A hoisting, positioning, and guiding device for large wind turbine components, characterized in that: The flexible connecting base, the hoisting guiding assembly and the hoisting aligning assembly are included. The flexible connecting base is provided with two, which are respectively used for being installed on the surfaces of two hoisted objects which need to be connected, and are used as the installation basis of the hoisting guiding assembly and the hoisting aligning assembly. The hoisting guiding assembly includes a high-definition camera, a first laser emitter and a first laser receiver; the high-definition camera and the first laser emitter are a group, which are used for being installed on the first hoisted object; the first laser receiver is used for being installed on the second hoisted object; and the hoisting guiding assembly is used for guiding the first hoisted object and the second hoisted object to be close to each other. The hoisting aligning assembly includes a second laser emitter and a second laser receiver; the second laser emitter and the second laser receiver are respectively used for being installed on the first hoisted object and the second hoisted object; the alignment direction of the second laser emitter and the second laser receiver is consistent with the splicing direction of the first hoisted object and the second hoisted object; and the second laser emitter and the second laser receiver are used for aligning the first hoisted object and the second hoisted object during the splicing process.

2. The positioning and guiding device for hoisting a large wind power component according to claim 1, characterized in that: The flexible connecting base is a flexible rubber belt, and a strong magnet adsorption block is arranged on the flexible rubber belt; a screw rod and a nut are arranged at the upper end of the strong magnet adsorption block; and the flexible rubber belt is fixed to the surface of the hoisted object through the strong magnet adsorption block.

3. The positioning and guiding device for hoisting a large wind power component according to claim 1 or 2, characterized in that: The high-definition camera is installed on the flexible connecting base through a matching universal head and a connecting rod base.

4. The wind power large component hoisting positioning guide device according to claim 3, characterized in that: The first laser emitter is installed on the flexible connecting base through a matching universal head and a connecting rod base.

5. The wind power component hoisting positioning guide device according to claim 4, characterized in that: The high-definition camera and the first laser emitter are installed in the same direction, and the detection directions of the high-definition camera and the first laser emitter are coincident in the vertical direction.

6. The wind power component hoisting positioning guide device according to claim 5, characterized in that: The first laser receiver is a spherical laser reflector.

7. The positioning and guiding device for hoisting a large wind power component according to claim 6, characterized in that: The second laser receiver is a planar laser reflector.

8. The positioning and guiding device for hoisting a large wind power component according to claim 7, characterized in that: The outer contour of the connecting and splicing part of the first hoisted object and the second hoisted object is a circular arc shape or a ring shape which faces each other.

9. The wind power component hoisting positioning guide device according to claim 8, characterized in that: The hoisting guiding assembly and the hoisting aligning assembly are installed on the outer contour circular arc surface of the first hoisted object and the second hoisted object through the flexible connecting base.

10. The positioning and guiding device for hoisting large wind power components according to claim 9, characterized in that: The number of the hoisting aligning assembly is at least one.

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