Auxiliary positioning device for hoisting of wind power tower drum

Abstract

The invention provides a wind power tower hoisting auxiliary positioning device, and relates to the technical field of wind power tower hoisting devices, the wind power tower hoisting auxiliary positioning device comprises a hoisting connecting assembly, an outer clamping mechanism and an inner clamping mechanism, the outer clamping mechanism and the inner clamping mechanism are respectively mounted above and below a connecting circular truncated cone, the hoisting connecting assembly is mounted on the outer clamping mechanism, and the hoisting connecting assembly is mounted on the inner clamping mechanism. The center and the edge of the inner clamping mechanism are provided with a laser emitting element and an inclination sensor, and the outer clamping mechanism and the inner clamping mechanism are used for clamping a wind power tower. Whether the wind power tower drum is located over the foundation or not can be determined through a positioning point where laser falls on the foundation, and meanwhile the inclination sensor can monitor whether the wind power tower drum is in a vertical state or not; the design of the laser emitting element and the inclination sensor can assist the crawler crane in achieving accurate and rapid matching between the wind power tower drum and the threaded hole in the foundation.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power tower hoisting devices, and in particular relates to a wind power tower hoisting auxiliary positioning device. Background Art

[0002] Wind power generation is a renewable energy source with great potential. It plays an important role in reducing carbon emissions and reducing dependence on limited fossil fuels. However, wind turbines are difficult to install due to their large size and strict installation accuracy requirements.

[0003] When hoisting a wind turbine tower, park the truck crane and crawler crane at the designated location, connect the hooks of the truck crane and crawler crane to the flanges at both ends of the tower, and cooperate with each other to steadily hoist the horizontally placed tower to the designated height. Then, the truck crane cooperates with the crawler crane to hoist the tower to a vertical position. Release the truck crane and rotate the crawler crane to transport the tower to the top of the installation foundation. Then, steadily lower the tower so that the bottom flange of the tower matches the foundation flange. Then, connect and fix the two with bolts. Hoist the middle tower and the upper tower in the same way.

[0004] In actual operation, due to the large size of the tower, when adjusting the tower position to match the foundation, there is no position reference, making it difficult to align the threaded holes on the tower and the threaded holes on the foundation, making the installation process time-consuming and labor-intensive. Summary of the invention

[0005] The present invention provides a wind power tower hoisting auxiliary positioning device to solve at least one of the above-mentioned technical problems.

[0006] In order to solve the above technical problems, the present invention discloses a wind turbine tower hoisting auxiliary positioning device, including a hoisting connection assembly, an external clamping mechanism and an internal clamping mechanism, wherein the external clamping mechanism and the internal clamping mechanism are respectively installed above and below the connecting table, the hoisting connection assembly is installed on the external clamping mechanism, and the internal clamping mechanism is provided with laser emitting elements and inclination sensors at three locations, the center and the edge, and the external clamping mechanism and the internal clamping mechanism are used to clamp the wind turbine tower.

[0007] Preferably, the hoisting connection assembly includes a plurality of inclined support rods, the plurality of inclined support rods are welded to an external clamping mechanism, a hoisting support is fixedly connected to the top of the inclined support rod, two mutually intersecting steel ropes are connected to the hoisting support, and a plurality of threaded connection holes are opened on the hoisting support.

[0008] Preferably, the external clamping mechanism includes two symmetrically arranged clamping rails, the clamping rails are fixedly connected to the connecting circular platform, a clamping power transmission assembly is installed on the connecting circular platform, a clamping arm is connected to the working end of the clamping power transmission assembly, and an external clamping assembly is provided on the clamping arm.

[0009] Preferably, the outer clamping assembly comprises a plurality of arc-shaped partitions, which are installed in parallel on the clamping arm, and the arc-shaped partitions are connected by a plurality of mounting vertical plates, on which a plurality of outer clamping blocks are installed.

[0010] Preferably, the clamping power transmission assembly includes an electric clamping gear, which is rotatably connected to the connecting circular platform. A guide slider is slidably connected in the clamping guide rail, and a displacement rack is fixedly connected to the other end of the guide slider. The bottom of the displacement rack is slidably connected to the connecting circular platform, and the two ends of the electric clamping gear are respectively meshed with two displacement racks. A weighing block is fixedly connected to the displacement rack, and the clamping arm is bolted to the bottom of the weighing block.

[0011] Preferably, the inner clamping mechanism includes a cylinder connected to an electric telescopic shaft, the cylinder connected to the electric telescopic shaft is rotatably connected to the connecting circular platform, the output end of the cylinder connected to the electric telescopic shaft is fixedly connected to the cylinder, the cylinder is fixedly connected to the arc-shaped triangular plate frame, the output end of the cylinder passes through the arc-shaped triangular plate frame and is fixedly connected to the arc-shaped triangular push plate, the bottom of the arc-shaped triangular plate frame is hinged with an L-shaped hinge connecting rod and an execution connecting rod, the middle part of the L-shaped hinge connecting rod is hinged to the bottom of the arc-shaped triangular plate frame, the L-shaped hinge connecting rod and the execution connecting rod are hinged at one end away from the arc-shaped triangular plate frame and are hinged to the inner clamping block, and the other end of the L-shaped hinge connecting rod away from the arc-shaped triangular plate frame is hinged to the arc-shaped triangular push plate.

[0012] Preferably, a plurality of anti-skid powder spray nozzles are provided on the top of the arc-shaped triangular plate frame.

[0013] Preferably, it further includes a positioning completion determination module, the positioning completion determination module including:

[0014] The preliminary positioning completion acceptance unit is used to determine whether the preliminary positioning of the tower is qualified based on the laser emission element and the inclination sensor;

[0015] The final positioning completion acceptance unit is used to determine whether the final positioning of the tower is qualified based on visual sensor technology.

[0016] Preferably, the preliminary positioning completion acceptance unit includes:

[0017] The laser point deviation visual acquisition subunit is used to detect the distance difference between the actual laser landing point emitted by each laser emitting element and the preset laser landing point based on visual sensing technology;

[0018] The preliminary installation deviation calculation subunit is used to calculate the preliminary actual installation deviation of the tower based on the distance difference between the actual laser landing point and the preset laser landing point and the detection value of the inclination sensor:

[0019] Among them, σ1 is the initial actual installation deviation of the tower, a1 is the weight value of the tilt angle deviation after the initial adjustment of the tower, lg is the logarithm with base 10, sinα is the sine value of α, α is the acute angle between the tower and the vertical plane, a2 is the weight of the center distance deviation after the initial adjustment of the tower, Δd i is the distance difference between the actual laser landing point of the i-th laser emitting element and the preset laser landing point, Δd i0 is the preset distance difference between the actual laser landing point of the i-th laser emitting element and the preset laser landing point;

[0020] The preliminary acceptance judgment subunit is used to compare the preliminary actual installation deviation of the tower with the preliminary preset installation deviation of the tower. If the preliminary actual installation deviation of the tower is greater than the preliminary preset installation deviation of the tower, preliminary adjustments are made again. Otherwise, the final positioning completion acceptance unit is used to conduct acceptance of the final positioning of the tower.

[0021] Preferably, the final positioning completion acceptance unit includes:

[0022] The image acquisition and processing subunit is used to acquire an internal top view of the tower after preliminary positioning, and input the acquired internal top view of the tower after preliminary positioning into a pre-trained concentricity evaluation module to obtain a concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation;

[0023] The final installation deviation calculation subunit is used to calculate the final actual installation deviation of the tower based on the concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation and the preliminary actual installation deviation of the tower:

[0024] Among them, σ2 is the final actual installation deviation of the tower, τ j is the concentricity evaluation value of the jth group of bolt holes corresponding to the tower and the foundation, τ0 is the preset concentricity evaluation value of the bolt holes of the tower and the foundation, and n is the total number of bolt holes on the tower or the foundation;

[0025] The final acceptance judgment subunit is used to compare the final actual installation deviation of the tower with the final preset installation deviation of the tower. If the final actual installation deviation of the tower is less than the final preset installation deviation of the tower, the tower positioning is qualified, otherwise the tower positioning is unqualified.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention can determine whether the wind turbine tower is directly above the foundation through the positioning point where the laser falls on the foundation. At the same time, the inclination sensor can also monitor whether the wind turbine tower is in a vertical state. The design of the laser emitting element and the inclination sensor can assist the crawler crane to achieve accurate and fast coordination between the wind turbine tower and the threaded holes on the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 A wind turbine tower hoisting auxiliary positioning device and a wind turbine tower installation schematic diagram proposed by the present invention;

[0030] Figure 2 This is a structural schematic diagram of the wind power tower hoisting auxiliary positioning device of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the external clamping mechanism of the present invention;

[0032] Figure 4 It is a schematic diagram of the structure of the inner clamping mechanism of the present invention;

[0033] Figure 5 A top view of the inner clamping mechanism of the present invention;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the inner clamping mechanism of the present invention.

[0035] In the figure: 1. lifting connection assembly; 100. tilting support rod; 101. lifting support; 102. steel rope; 103. threaded connection hole; 2. external clamping mechanism; 200. clamping guide rail; 201. clamping power transmission assembly; 2010. electric clamping gear; 2011. guide slider; 2012. displacement rack; 2013. weighing block; 202. clamping arm; 203. arc partition; 204. installation vertical plate; 205. external clamping block; 3. internal clamping mechanism; 300. cylinder connected to electric telescopic shaft; 301. cylinder; 302. arc triangle frame; 303. arc triangle push plate; 304. L-shaped hinge connecting rod; 305. execution connecting rod; 306. internal clamping block; 307. anti-skid powder spray head; 4. connecting truncated table; 400. laser emitting element; 5. wind power tower. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides the following embodiments

[0039] Example 1

[0040] The embodiment of the present invention provides a wind power tower hoisting auxiliary positioning device, such as Figure 1-6 As shown, it includes a lifting connection component 1, an external clamping mechanism 2 and an internal clamping mechanism 3, the external clamping mechanism 2 and the internal clamping mechanism 3 are respectively installed above and below the connecting truncated table 4, the lifting connection component 1 is installed on the external clamping mechanism 2, and the internal clamping mechanism 3 is provided with a laser emitting element 400 and an inclination sensor at the center and the edge, and the external clamping mechanism 2 and the internal clamping mechanism 3 are used to clamp the wind power tower 5.

[0041] The working principle and beneficial effects of the above technical solution are as follows: during the hoisting process of the wind turbine tower 5, the crawler crane is connected to the steel rope 102 of the hoisting connection assembly 1. In the process of the crawler crane driving the wind turbine tower 5 to move and cooperate with the foundation, the laser emitting element 400 starts the laser to irradiate downward. The positioning point where the laser falls on the foundation can be used to determine whether the wind turbine tower 5 is directly above the foundation. At the same time, the inclination sensor can also monitor whether the wind turbine tower 5 is in a vertical state. The design of the laser emitting element 400 and the inclination sensor can assist the crawler crane to achieve accurate and fast coordination between the wind turbine tower 5 and the threaded holes on the foundation.

[0042] Example 2

[0043] Based on Example 1, the lifting and connecting assembly 1 includes a plurality of inclined support rods 100, and the plurality of inclined support rods 100 are welded to the external clamping mechanism 2. A lifting support 101 is fixedly connected to the top of the inclined support rod 100, and two mutually intersecting steel ropes 102 are connected to the lifting support 101, and a plurality of threaded connection holes 103 are opened on the lifting support 101.

[0044] The working principle and beneficial effects of the above technical solution are as follows: in the process of the automobile crane cooperating with the crawler crane to rotate the wind turbine tower 5 from a horizontal state to a vertical state and fine-tune the alignment position of the wind turbine tower 5, the crawler crane is connected to the steel rope 102 for convenient state adjustment. When the position of the wind turbine tower 5 is adjusted to just above the foundation, the crawler crane is connected to the threaded connection hole 103, so that the relative position of the crawler crane and the wind turbine tower 5 can be temporarily fixed, thereby avoiding the position of the wind turbine tower 5 in the air from slightly deviating again due to environmental interference during the downward movement of the wind turbine tower 5.

[0045] Example 3

[0046] On the basis of Example 1, the outer clamping mechanism 2 comprises two symmetrically arranged clamping rails 200, the clamping rails 200 are fixedly connected to the connecting truncated table 4, a clamping power transmission component 201 is installed on the connecting truncated table 4, a clamping arm 202 is connected to the working end of the clamping power transmission component 201, and an outer clamping component is provided on the clamping arm 202;

[0047] The outer clamping assembly includes a plurality of arc-shaped partitions 203 , which are parallelly mounted on the clamping arm 202 . The arc-shaped partitions 203 are connected by a plurality of mounting vertical plates 204 , and a plurality of outer clamping blocks 205 are mounted on the mounting vertical plates 204 .

[0048] The working principle and beneficial effects of the above technical solution are as follows: when clamping the wind turbine tower 5, the clamping power transmission component 201 drives the two clamping arms 202 to move relative to each other, thereby clamping the wind turbine tower 5, and a plurality of arc-shaped partitions 203, a plurality of mounting vertical plates 204 and a plurality of external clamping blocks 205 cooperate with each other to achieve contact with the outer wall of the wind turbine tower 5. Compared with directly using a whole clamping block to contact the wind turbine tower 5, the weight of the external clamping mechanism 2 is reduced, and the external clamping block 205 is easily replaced, thereby ensuring the surface friction of the external clamping block 205 and increasing the safety and reliability of the external clamping mechanism 2 during operation.

[0049] Example 4

[0050] On the basis of Example 1, the clamping power transmission assembly 201 includes an electric clamping gear 2010, which is rotatably connected to the connecting truncated table 4. A guide slider 2011 is slidably connected in the clamping guide rail 200. The other end of the guide slider 2011 is fixedly connected to a displacement rack 2012. The bottom of the displacement rack 2012 is slidably connected to the connecting truncated table 4. The two ends of the electric clamping gear 2010 are respectively meshed with two displacement racks 2012. A weighing block 2013 is fixedly connected to the displacement rack 2012. The clamping arm 202 is bolted to the bottom of the weighing block 2013.

[0051] The working principle and beneficial effects of the above technical solution: when the clamping power transmission component 201 is working, the electric clamping gear 2010 rotates to drive the two displacement racks 2012 to move away from or towards each other, thereby realizing the clamping or releasing action. During the clamping or releasing process, the guide slider 2011 slides along the clamping guide rail 200, thereby increasing the stability of the clamping arm 202 during the movement.

[0052] Example 5

[0053] On the basis of Example 3, the inner clamping mechanism 3 includes a cylinder connected to an electric telescopic shaft 300, which is rotatably connected to the connecting truncated table 4, and the output end of the cylinder connected to the electric telescopic shaft 300 is fixedly connected to a cylinder 301, and the cylinder 301 is fixedly connected to an arc-shaped triangular plate frame 302, and the output end of the cylinder 301 passes through the arc-shaped triangular plate frame 302 and is fixedly connected to an arc-shaped triangular push plate 303, and the arc The bottom of the curved triangle frame 302 is hingedly connected with an L-shaped hinge link 304 and an execution link 305. The middle part of the L-shaped hinge link 304 is hingedly connected to the bottom of the curved triangle frame 302. The ends of the L-shaped hinge link 304 and the execution link 305 away from the curved triangle frame 302 are hingedly connected to the inner clamping block 306. The other end of the L-shaped hinge link 304 away from the curved triangle frame 302 is hingedly connected to the curved triangle push plate 303.

[0054] Preferably, a plurality of anti-skid powder spray nozzles 307 are provided on the top of the arc-shaped triangular plate frame 302 .

[0055] The working principle and beneficial effects of the above technical solution are as follows: when the inner clamping mechanism 3 is working, the electric telescopic shaft 300 is extended so that the inner clamping mechanism 3 is located inside the wind turbine tower 5, and then the anti-skid powder nozzle 307 sprays anti-skid powder onto the inner wall of the wind turbine tower 5. During the spraying process, the electric telescopic shaft 300 drives the arc-shaped triangular plate frame 302 to rotate, thereby ensuring the comprehensive coverage of the anti-skid powder spraying, and then the cylinder 301 is extended to drive the arc-shaped triangular push plate 303 to move downward, thereby driving the L-shaped hinge connecting rod 304 to move, and the movement of the L-shaped hinge connecting rod 304 drives the inner clamping block 306 to expand outward until it contacts the inner wall of the wind turbine tower 5, thereby realizing the internal clamping of the wind turbine tower 5, and the internal and external clamping cooperate with each other to ensure the safety and reliability of the lifting.

[0056] Example 6

[0057] On the basis of embodiment 1, a positioning completion determination module is further included, and the positioning completion determination module includes:

[0058] A preliminary positioning completion acceptance unit is used to determine whether the preliminary positioning of the tower is qualified based on the laser emitting element 400 and the inclination sensor;

[0059] The final positioning completion acceptance unit is used to determine whether the final positioning of the tower is qualified based on visual sensor technology.

[0060] The working principle and beneficial effects of the above technical solution are as follows: by monitoring the positioning point on the foundation irradiated by the laser emitted by the laser emitting element 400, it can be determined whether the wind turbine tower is directly above the foundation. At the same time, the inclination sensor can monitor whether the wind turbine tower is in a vertical state. By checking and accepting the preliminary positioning situation, it can be ensured that the position of the wind turbine tower is approximately correct.

[0061] The final positioning completion acceptance unit is based on visual sensor technology and is used to determine whether the final positioning of the wind turbine tower is qualified. By detecting and analyzing the relative position of the wind turbine tower and the foundation through visual sensors, accurate positioning judgment can be made. If the final positioning result meets the requirements, that is, the wind turbine tower and the foundation are accurately matched, the system can conduct final positioning acceptance.

[0062] Example 7

[0063] Based on Example 6, the preliminary positioning completion acceptance unit includes:

[0064] The laser point deviation visual acquisition subunit is used to detect the distance difference between the actual laser landing point emitted by each laser emitting element 400 and the preset laser landing point based on visual sensing technology;

[0065] The preliminary installation deviation calculation subunit is used to calculate the preliminary actual installation deviation of the tower based on the distance difference between the actual laser landing point and the preset laser landing point and the detection value of the inclination sensor:

[0066] Among them, σ1 is the initial actual installation deviation of the tower, a1 is the weight value of the tilt angle deviation after the initial adjustment of the tower, lg is the logarithm with base 10, sinα is the sine value of α, α is the acute angle between the tower and the vertical plane, a2 is the weight of the center distance deviation after the initial adjustment of the tower, Δd i is the distance difference between the actual laser landing point of the i-th laser emitting element 400 and the preset laser landing point, Δd i0 is the preset distance difference between the actual laser landing point of the i-th laser emitting element 400 and the preset laser landing point;

[0067] The preliminary acceptance judgment subunit is used to compare the preliminary actual installation deviation of the tower with the preliminary preset installation deviation of the tower. If the preliminary actual installation deviation of the tower is greater than the preliminary preset installation deviation of the tower, preliminary adjustments are made again. Otherwise, the final positioning completion acceptance unit is used to conduct acceptance of the final positioning of the tower.

[0068] The working principle and beneficial effects of the above technical solution are as follows: the laser point deviation visual acquisition subunit is based on visual sensing technology, and is used to detect the distance difference between the actual laser landing point emitted by each laser emitting element 400 and the preset laser landing point. The laser landing point is detected and measured by the visual acquisition system, and the deviation between the actual landing point and the preset landing point can be obtained. The preliminary installation deviation calculation subunit calculates the preliminary actual installation deviation of the tower based on the collected distance difference between the actual laser landing point and the preset laser landing point and the detection value of the inclination sensor. By weighted calculation of the laser point deviation and the inclination deviation, a comprehensive Preliminary actual installation deviation, the preliminary acceptance judgment subunit compares the preliminary actual installation deviation of the tower with the preset installation deviation. If the preliminary actual installation deviation is greater than the preset installation deviation, preliminary adjustments are required again to improve positioning accuracy. If the preliminary actual installation deviation is less than or equal to the preset installation deviation, the final positioning of the tower is accepted by the final positioning completion acceptance unit. Through the work of the preliminary positioning completion acceptance unit, the preliminary positioning of the tower can be accurately evaluated. The evaluation result can be used as the basis for further positioning adjustments and final positioning acceptance to ensure the accurate positioning and safe lifting of the wind turbine tower.

[0069] Example 8

[0070] On the basis of Example 7, the final positioning completion acceptance unit includes:

[0071] The image acquisition and processing subunit is used to acquire an internal top view of the tower after preliminary positioning, and input the acquired internal top view of the tower after preliminary positioning into a pre-trained concentricity evaluation module to obtain a concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation;

[0072] The final installation deviation calculation subunit is used to calculate the final actual installation deviation of the tower based on the concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation and the preliminary actual installation deviation of the tower:

[0073] Among them, σ2 is the final actual installation deviation of the tower, τ j is the concentricity evaluation value of the jth group of bolt holes corresponding to the tower and the foundation, τ0 is the preset concentricity evaluation value of the bolt holes of the tower and the foundation, and n is the total number of bolt holes on the tower or the foundation;

[0074] The final acceptance judgment subunit is used to compare the final actual installation deviation of the tower with the final preset installation deviation of the tower. If the final actual installation deviation of the tower is less than the final preset installation deviation of the tower, the tower positioning is qualified, otherwise the tower positioning is unqualified.

[0075] The working principle and beneficial effects of the above technical solution are as follows: the image acquisition and processing subunit is responsible for acquiring the top view of the interior of the tower after preliminary positioning, and inputting these images into the pre-trained concentricity evaluation module, which can accurately evaluate the concentricity of each group of bolt holes between the tower and the foundation, thereby providing key data for subsequent deviation calculation. The final installation deviation calculation subunit calculates the final actual installation deviation of the tower according to the concentricity evaluation value of each group of bolt holes and the preliminary actual installation deviation of the tower. Through comprehensive calculation by formula (2), the accurate installation condition of the tower after the final adjustment can be evaluated. The final acceptance judgment subunit judges whether the positioning of the tower is qualified by comparing the final actual installation deviation of the tower with the preset final installation deviation. If the final actual installation deviation is less than the preset value, it indicates that the positioning of the tower is qualified and meets the construction requirements; otherwise, it indicates that the positioning is unqualified and further adjustment is required.

[0076] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wind power tower hoisting auxiliary positioning device, characterized in that: The invention comprises a hoisting connection assembly (1), an external clamping mechanism (2) and an internal clamping mechanism (3), wherein the external clamping mechanism (2) and the internal clamping mechanism (3) are respectively installed above and below a connecting truncated table (4), the hoisting connection assembly (1) is installed on the external clamping mechanism (2), and the internal clamping mechanism (3) is provided with a laser emitting element (400) and an inclination sensor at three locations, namely, at the center and at the edge, and the external clamping mechanism (2) and the internal clamping mechanism (3) are used to clamp a wind power tower (5).

2. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: The hoisting connection assembly (1) comprises a plurality of inclined support rods (100), wherein the plurality of inclined support rods (100) are welded to an external clamping mechanism (2), a hoisting support (101) is fixedly connected to the top of the inclined support rod (100), two mutually intersecting steel ropes (102) are connected to the hoisting support (101), and a plurality of threaded connection holes (103) are provided on the hoisting support (101).

3. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: The external clamping mechanism (2) comprises two symmetrically arranged clamping guide rails (200), the clamping guide rails (200) being fixedly connected to the connecting truncated table (4), a clamping power transmission assembly (201) being mounted on the connecting truncated table (4), a clamping arm (202) being connected to a working end of the clamping power transmission assembly (201), and an external clamping assembly being arranged on the clamping arm (202).

4. The wind turbine tower hoisting auxiliary positioning device according to claim 3 is characterized in that: The outer clamping assembly comprises a plurality of arc-shaped partitions (203), the plurality of arc-shaped partitions (203) are installed in parallel on the clamping arm (202), the arc-shaped partitions (203) are connected via a plurality of mounting vertical plates (204), and a plurality of outer clamping blocks (205) are installed on the mounting vertical plates (204).

5. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: The clamping power transmission assembly (201) comprises an electric clamping gear (2010), the electric clamping gear (2010) is rotatably connected to the connecting truncated table (4), a guide slider (2011) is slidably connected inside the clamping guide rail (200), a displacement rack (2012) is fixedly connected to the other end of the guide slider (2011), the bottom of the displacement rack (2012) is slidably connected to the connecting truncated table (4), the two ends of the electric clamping gear (2010) are respectively meshed with the two displacement racks (2012), a weighing block (2013) is fixedly connected to the displacement rack (2012), and the clamping arm (202) is bolted to the bottom of the weighing block (2013).

6. The wind turbine tower hoisting auxiliary positioning device according to claim 4, characterized in that: The inner clamping mechanism (3) comprises a cylinder-connected electric telescopic rotating shaft (300), wherein the cylinder-connected electric telescopic rotating shaft (300) is rotatably connected to the connecting truncated table (4), wherein the output end of the cylinder-connected electric telescopic rotating shaft (300) is fixedly connected to a cylinder (301), wherein the cylinder (301) is fixedly connected to an arc-shaped triangular plate frame (302), wherein the output end of the cylinder (301) passes through the arc-shaped triangular plate frame (302) and is fixedly connected to an arc-shaped triangular push plate (303), wherein the arc-shaped triangular plate frame ( The bottom of the arc-shaped triangle frame (302) is hingedly connected with an L-shaped hinge link (304) and an execution link (305); the middle part of the L-shaped hinge link (304) is hingedly connected to the bottom of the arc-shaped triangle frame (302); one end of the L-shaped hinge link (304) and the execution link (305) away from the arc-shaped triangle frame (302) is hingedly connected to an inner clamping block (306); the other end of the L-shaped hinge link (304) away from the arc-shaped triangle frame (302) is hingedly connected to the arc-shaped triangle push plate (303).

7. The wind turbine tower hoisting auxiliary positioning device according to claim 6, characterized in that: A plurality of anti-skid powder spray nozzles (307) are provided on the top of the arc-shaped triangular plate frame (302).

8. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: The module further comprises a positioning completion determination module, wherein the positioning completion determination module comprises: A preliminary positioning completion acceptance unit is used to determine whether the preliminary positioning of the tower is qualified based on the laser emitting element (400) and the inclination sensor; The final positioning completion acceptance unit is used to determine whether the final positioning of the tower is qualified based on visual sensor technology.

9. The wind turbine tower hoisting auxiliary positioning device according to claim 8, characterized in that: The initial positioning completion acceptance unit includes: A laser point deviation visual acquisition subunit, used for detecting the distance difference between the actual laser landing point emitted by each laser emitting element (400) and the preset laser landing point based on visual sensing technology; The preliminary installation deviation calculation subunit is used to calculate the preliminary actual installation deviation of the tower based on the distance difference between the actual laser landing point and the preset laser landing point and the detection value of the inclination sensor: Among them, σ1 is the initial actual installation deviation of the tower, a1 is the weight value of the tilt angle deviation after the initial adjustment of the tower, lg is the logarithm with base 10, sinα is the sine value of α, α is the acute angle between the tower and the vertical plane, a2 is the weight of the center distance deviation after the initial adjustment of the tower, Δd i is the distance difference between the actual laser landing point of the i-th laser emitting element (400) and the preset laser landing point, Δd i0 is a preset distance difference between an actual laser landing point of the i-th laser emitting element (400) and a preset laser landing point; The preliminary acceptance judgment subunit is used to compare the preliminary actual installation deviation of the tower with the preliminary preset installation deviation of the tower. If the preliminary actual installation deviation of the tower is greater than the preliminary preset installation deviation of the tower, preliminary adjustments are made again. Otherwise, the final positioning completion acceptance unit is used to conduct acceptance of the final positioning of the tower.

10. The wind turbine tower hoisting auxiliary positioning device according to claim 9, characterized in that: The final positioning completion acceptance unit includes: The image acquisition and processing subunit is used to acquire an internal top view of the tower after preliminary positioning, and input the acquired internal top view of the tower after preliminary positioning into a pre-trained concentricity evaluation module to obtain a concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation; The final installation deviation calculation subunit is used to calculate the final actual installation deviation of the tower based on the concentricity evaluation value of each group of bolt holes corresponding to the tower and the foundation and the preliminary actual installation deviation of the tower: Among them, σ2 is the final actual installation deviation of the tower, τ j is the concentricity evaluation value of the jth group of bolt holes corresponding to the tower and the foundation, τ0 is the preset concentricity evaluation value of the bolt holes of the tower and the foundation, and n is the total number of bolt holes on the tower or the foundation; The final acceptance judgment subunit is used to compare the final actual installation deviation of the tower with the final preset installation deviation of the tower. If the final actual installation deviation of the tower is less than the final preset installation deviation of the tower, the tower positioning is qualified, otherwise the tower positioning is unqualified.

Images