A wind power tower hoisting auxiliary positioning device

Abstract

The invention discloses an auxiliary positioning device for hoisting a wind power tower, which relates to the technical field of wind power construction equipment, and comprises a central tube as the main supporting structure of the device; a plurality of sleeves, one end of each sleeve being evenly distributed and fixed around the central tube; a support rod, each sleeve being connected with a support rod, the support rod sliding freely in the sleeve to adjust the extension length; a guide rope, each end of the support rod being penetrated by a guide rope, the guide rope being used for connecting and pulling the tower; an end bolt being fixedly connected to one end of the guide rope and being used for cooperating and connecting with a connecting hole on a flange ring at the lower end of an upper tower; a reel, rotatably connected to the bottom of the central tube, each guide rope being wound around the reel, and the retraction and release of the guide rope being realized by the rotation of the reel; the invention improves the hoisting accuracy and efficiency, realizes smooth docking, and can be intelligently monitored and adjusted.

Description

Technical Field

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

[0002] As a key component of the wind power generation system, the hoisting process of the wind turbine tower is an important link in the construction of the entire wind farm. Generally speaking, the wind turbine tower is composed of multiple sections, which are installed on the foundation section by section through hoisting operations until the designed height is reached. During the hoisting process, large lifting equipment such as crawler cranes or tower cranes are usually used to lift the tower segments from the ground or transport vehicles, and accurately install them on the installed upper section of the tower or foundation. The lifting equipment lifts the tower segments through lifting equipment such as wire ropes or slings, and performs operations such as rotation and translation in the air to achieve alignment and installation. At the same time, multiple factors such as wind speed, terrain, tower weight and size need to be considered during the hoisting process to ensure the safety and smooth progress of the hoisting operation.

[0003] During the hoisting process, the tower segments are heavy and large in size, and are greatly affected by external factors such as wind and terrain, which can easily cause the tower to tilt in the air. Once the tilt angle is too large, it will not only increase the difficulty and risk of hoisting, but may also cause damage to the tower and lifting equipment. Existing hoisting usually relies on manual experience and operating skills for alignment and installation. However, since the tower segments are easily disturbed by external factors such as wind in the air and shake, the alignment process becomes extremely difficult. This will not only prolong the hoisting time, but also increase installation errors and safety hazards.

[0004] Therefore, it is necessary to provide a wind power tower hoisting auxiliary positioning device to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wind power tower hoisting auxiliary positioning device, comprising:

[0007] The central tube serves as the main supporting structure of the device;

[0008] The sleeves are provided in multiple pieces, and one end of each sleeve is evenly distributed and fixed around the central tube;

[0009] Support rods, each of the sleeves is connected with a support rod, and the support rods slide freely in the sleeves to adjust the extension length;

[0010] A guide rope, wherein the end of each support rod is penetrated by a guide rope, and the guide rope is used to connect and pull the tower;

[0011] The end bolt is fixedly connected to one end of the guide rope and is used to cooperate with the connection hole on the flange ring at the lower end of the upper tower;

[0012] A reel is rotatably connected to the bottom of the central cylinder, each guide rope is wound around the reel, and the retraction and extension of the guide rope is achieved by the rotation of the reel;

[0013] A clamping plate and a clamping wedge are respectively arranged at the upper and lower ends of each support rod;

[0014] The clamping plate is fixedly connected to the support rod, and the clamping wedge is slidably connected to the support rod up and down.

[0015] Furthermore, preferably, a driving motor capable of driving the reel to rotate is disposed in the central tube.

[0016] Further, as a preference, an air bag is provided above the clamping plate;

[0017] The airbag is connected to an inflation valve and an deflation valve. The air pressure in the airbag is adjusted by controlling the inflation valve and the deflation valve, thereby controlling the cushioning force when the lower end of the upper tower and the upper end of the lower tower are in contact with each other and the height of each airbag.

[0018] Furthermore, preferably, concentric through holes are provided in the middle of the clamping plate and the clamping wedge, and the airbag is an annular structure.

[0019] Further, as a preference, a tension sensor is provided at a position of each guide rope close to the end bolt, and the diameter of the tension sensor is smaller than the inner diameter of the connecting hole.

[0020] Furthermore, as a preference, a connecting rod is hinged at the end of each of the support rods, and each of the connecting rods is hinged to a connecting disk that is concentric with the central tube.

[0021] Further, as a preference, a screw is rotatably provided above the central tube, and the screw is threadedly connected to the connecting disk.

[0022] Furthermore, as a preference, a guide wheel is provided below the end of each support rod, and the guide rope passes over the guide wheel and is bent and then rolled into a reel.

[0023] Further, as a preference, a cavity is provided inside the end of the support rod, the clamping wedge penetrates the cavity, a plurality of vertical slide rails are provided in the cavity, and the clamping wedge is slidably arranged in the slide rails;

[0024] A plurality of supporting springs are arranged at the bottom of the cavity, and the supporting springs are fitted into the clamping wedge.

[0025] Furthermore, preferably, the outer wall of the drum is provided with a plurality of hanging rings of different heights, and a hook is fixed to one end of each guide rope close to the drum.

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

[0027] The free sliding of the support rod in the sleeve enables the device to adapt to the hoisting requirements of towers with different diameters. Through multiple support rods and guide ropes, the wind turbine tower can be accurately positioned during the hoisting process, effectively reducing deviations caused by improper manual operation or environmental factors, and improving the accuracy and efficiency of hoisting.

[0028] The airbag provides an effective buffer for the lower end of the upper tower, avoiding possible damage caused by direct collision, while also ensuring the stability of the docking process. By adjusting the air pressure of the airbag, the height of the docking point can be further controlled, so that the upper tower can be smoothly and accurately attached to the lower tower.

[0029] The application of tension sensors enables the system to intelligently monitor the inclination of the upper tower and adjust the crane rope or air bag pressure accordingly to ensure a smooth docking process, thereby improving the automation level and reliability of the lifting operation.

[0030] The combination of the clamping plate and the clamping wedge ensures that the device can be firmly clamped on the flange ring of the tower to prevent slippage or accidents during the lifting process; the cavity, slide rail and support spring inside the support rod enable the clamping wedge to remain stable and have a certain degree of adaptability during the clamping process, thereby improving the durability and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of a wind power tower hoisting auxiliary positioning device;

[0032] Figure 2 It is a side schematic diagram of a wind power tower hoisting auxiliary positioning device;

[0033] Figure 3 It is a schematic diagram of the structure of the clamping plate and the clamping wedge in the present invention;

[0034] Figure 4 It is a structural schematic diagram of the cross section of the end of the support rod in the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of the reel in the present invention.

[0036] In the figure: 100, tower; 101, flange ring; 102, connecting hole; 1, center tube; 2, sleeve; 3, support rod; 31, cavity; 4, guide rope; 41, tension sensor; 42, hook; 5, end bolt; 6, reel; 61, hanging ring; 7, clamping plate; 71, airbag; 8, clamping wedge; 9, guide wheel; 10, connecting rod; 11, connecting plate; 12, screw; 13, slide rail; 14, support spring. DETAILED DESCRIPTION

[0037] See also Figure 1-Figure 5 In an embodiment of the present invention, a wind power tower hoisting auxiliary positioning device includes:

[0038] The central tube 1 serves as the main supporting structure of the device;

[0039] The sleeves 2 are provided in multiple pieces, and one end of the sleeves 2 is evenly distributed and fixed around the central tube 1;

[0040] Support rod 3, each sleeve 2 is connected with a support rod 3, and the support rod 3 slides freely in the sleeve 2 to adjust the extension length;

[0041] A guide rope 4, wherein the end of each support rod 3 is penetrated by a guide rope 4, and the guide rope 4 is used to connect and pull the tower 100;

[0042] The end bolt 5 is fixedly connected to one end of the guide rope 4 and is used to cooperate with the connection hole 102 on the flange ring 101 at the lower end of the upper tower 100;

[0043] The reel 6 is rotatably connected to the bottom of the central tube 1 , and each guide rope 4 is wound around the reel 6 . The reel 6 is rotated to retract and release the guide rope 4 .

[0044] The support rod 3 is slid to fit against the inner wall of the upper end of the lower tower 100, and the end bolt 5 is connected to the connecting hole 102 of the flange ring 101 at the lower end of the upper tower 100 through a nut. When the drum 6 rotates to reel in the guide rope 4, the lower end of the upper tower 100 is pulled to fit against the upper end of the lower tower 100, so that the wind turbine tower can be accurately hoisted and positioned.

[0045] In this embodiment, a driving motor capable of driving the reel 6 to rotate is disposed in the central tube 1, and the guide rope 4 can be retracted and extended by controlling the forward and reverse rotation of the driving motor, thereby improving the convenience and efficiency of operation.

[0046] In this embodiment, a clamping plate 7 and a clamping wedge 8 are respectively arranged at the upper and lower ends of each support rod 3, wherein the clamping plate 7 is fixedly connected to the support rod 3, and the clamping wedge 8 is slidably connected to the support rod 3. When the support rod 3 is extended to fit the inner wall of the tower 100 below, the flange ring 101 is stuck between the clamping plate 7 and the clamping wedge 8, thereby limiting the upper and lower positions of the device.

[0047] In this embodiment, the contact surface between the clamping plate 7 and the clamping wedge 8 is provided with anti-slip texture to increase the friction force when clamping the flange ring 101 and prevent sliding.

[0048] In this embodiment, an air bag 71 is arranged above the clamping plate 7. When the air bag 71 is inflated, the lower end of the upper tower 100 can be attached to the upper end of the lower tower 100 to play a buffering role.

[0049] In this embodiment, the airbag 71 is connected to an inflation valve and a deflation valve. The air pressure in the airbag 71 is adjusted by controlling the inflation valve and the deflation valve, thereby controlling the cushioning force when the lower end of the upper tower 100 and the upper end of the lower tower 100 are in contact with each other and the height of each airbag 71.

[0050] In this embodiment, concentric through holes are opened in the middle of the clamping plate 7 and the clamping wedge block 8, and the air bag 71 is an annular structure. When the clamping wedge block 8 is against the inner wall of the lower tower 100, the through holes in the middle of the clamping plate 7 and the clamping wedge block 8 and the middle of the air bag 71 are concentric with the connecting hole 102, so that the guide rope 4 can pass through the connecting hole 102 from the center of the clamping plate 7 and the clamping wedge block 8, so that when the lower end of the upper tower 100 is attached to the upper end of the lower tower 100, the connecting hole 102 of the upper tower 100 is concentric with the connecting hole 102 of the lower tower 100.

[0051] In this embodiment, a tension sensor 41 is provided near the terminal bolt 5 of each guide rope 4, and the diameter of the tension sensor 41 is smaller than the inner diameter of the connection hole 102. The tension of each guide rope 4 can be monitored by the tension sensor 41. Since each guide rope 4 is wound up by the reel 6 at the same time, when the upper tower 100 is tilted, the tension on each tension sensor 41 will be different, so that the tilt direction and tilt degree of the upper tower 100 can be monitored, so as to guide the adjustment of the crane rope or change the air pressure of each airbag 71, and ensure that the lower end of the upper tower 100 can be stably attached to the upper end of the lower tower 100.

[0052] In this embodiment, a connecting rod 10 is hinged at the end of each support rod 3, and each connecting rod 10 is hinged to a connection disk 11 concentric with the central tube 1. A screw rod 12 is rotatably arranged above the central tube 1, and the screw rod 12 is threadedly connected to the connection disk 11. In other words, the height of the connection disk 11 can be changed by rotating the screw rod 12, so that each connecting rod 10 pushes the corresponding support rod 3 to slide, thereby synchronously changing the extension length of each support rod 3, ensuring that each support rod 3 can be evenly attached to the inner wall of the tower tube 100 below.

[0053] In this embodiment, a hand wheel is provided at the top of the screw rod 12 to facilitate manual rotation of the screw rod 12 to adjust the height of the connecting plate 11 .

[0054] In this embodiment, a guide wheel 9 is provided below the end of each support rod 3 , and the guide rope 4 passes over the guide wheel 9 and is bent and then rolled into the reel 6 .

[0055] In this embodiment, a cavity 31 is formed inside the end of the support rod 3, and the clamping wedge 8 penetrates the cavity 31. A plurality of vertical slide rails 13 are provided in the cavity 31, and the clamping wedge 8 is slidably disposed in the slide rails 13;

[0056] A plurality of support springs 14 are disposed at the bottom of the cavity 31 , and the support springs 14 fit into the clamping wedge 8 .

[0057] That is to say, when the clamping wedge 8 approaches the flange ring 101 , its inclined surface slides along the edge of the flange ring 101 , so that the clamping wedge 8 squeezes the supporting spring 14 and slides downward, thereby forming a clamping force between the clamping plate 7 and clamping the flange ring 101 .

[0058] In this embodiment, the outer wall of the drum 6 is provided with a plurality of hanging rings 61 of different heights, and a hook 42 is fixed to one end of each guide rope 4 close to the drum 6. By hanging the hook 42 on the hanging ring 61, the guide rope 4 can be quickly fixed in the drum 6, and different guide ropes 4 can be hung on the hanging rings 61 of different heights, so that each guide rope 4 can be evenly distributed at different heights of the drum 6.

[0059] The specific implementation includes the following steps:

[0060] Place the central tube 1 of the auxiliary positioning device for hoisting the wind turbine tower on the top of the lower tower 100, rotate the screw 12 by the hand wheel, adjust the height of the connecting plate 11, so that each connecting rod 10 pushes the corresponding support rod 3 to slide in the sleeve 2 until the end of the support rod 3 contacts the inner wall of the lower tower 100. When the support rod 3 is extended to the right position, the clamping plate 7 and the clamping wedge 8 will automatically clamp the flange ring 101 at the upper end of the lower tower 100.

[0061] The end bolts 5 of each guide rope 4 are uniformly and distributedly passed through the connection holes 102 at the lower end of the upper tower 100, and fastened with nuts;

[0062] With the help of the lifting equipment, the upper tower 100 is slowly lifted until the guide rope 4 contacts the top of the lower tower 100;

[0063] Pass one end of each guide rope 4 through the middle through hole of each clamping plate 7 and clamping wedge 8 in sequence, and keep it concentric with the connecting hole 102 of the tower 100 below;

[0064] Hang the hook 42 of each guide rope 4 near the end of the drum 6 on the hanging ring 61 on the outer wall of the drum 6, and select a suitable height of the hanging ring 61 according to the needs to ensure that the guide ropes 4 are evenly distributed;

[0065] The guide rope 4 is wound by controlling the drive motor to rotate the reel 6. Initially, the guide rope 4 can be slightly wound to confirm that all components are correctly connected and the system runs smoothly.

[0066] The tension of each guide rope 4 can be monitored by the tension sensor 41. Since each guide rope 4 is wound up by the drum 6 at the same time, when the upper tower 100 is tilted, the tension on each tension sensor 41 will be different, so that the tilt direction and tilt degree of the upper tower 100 can be monitored.

[0067] When the upper tower 100 approaches the lower tower 100, the air pressure of the airbag 71 is gradually adjusted according to the tilt direction and tilt degree of the upper tower 100 to ensure that the upper tower 100 contacts each airbag 71 at the same time to avoid imbalance caused by point contact;

[0068] The air pressure of each air bag 71 is adjusted to be the same, so that the upper tower 100 is completely vertical, and the air pressure of the air bag 71 is gradually reduced, so that the upper tower 100 slowly descends;

[0069] When the distance between the flange ring 101 of the upper tower 100 and the flange ring 101 of the lower tower 100 is less than the length of the fixing bolts, the fixing bolts are inserted and passed through the multiple connection holes 102 in the two flange rings 101, and the nuts are not tightened to connect the fixing bolts;

[0070] The airbag 71 is completely deflated, and the screw 12 is rotated so that when the support rod 3 contracts, the clamping plate 7 and the clamping wedge 8 leave the flange ring 101;

[0071] Connect and tighten the fixing bolt of each connecting hole 102 .

[0072] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wind power tower hoisting auxiliary positioning device, characterized in that: include: A central tube (1) serving as the main supporting structure of the device; A plurality of sleeves (2) are provided, and one end of the sleeves (2) is evenly distributed and fixed around the central tube (1); A support rod (3), each of the sleeves (2) being connected to a support rod (3), the support rod (3) being able to slide freely in the sleeve (2) to adjust the extension length; A guide rope (4), wherein the end of each support rod (3) is penetrated by a guide rope (4), and the guide rope (4) is used to connect and pull the tower (100); An end bolt (5) is fixedly connected to one end of the guide rope (4) and is used to cooperate with a connection hole (102) on a flange ring (101) at the lower end of the upper tower (100); A reel (6) is rotatably connected to the bottom of the central cylinder (1), each guide rope (4) is wound around the reel (6), and the retraction and extension of the guide rope (4) are achieved by the rotation of the reel (6); A clamping plate (7) and a clamping wedge (8) are respectively arranged at the upper and lower ends of each support rod (3); The clamping plate (7) is fixedly connected to the support rod (3), and the clamping wedge (8) is slidably connected to the support rod (3) up and down; The support rod (3) is slid to fit the inner wall of the upper end of the lower tower (100). When the support rod (3) is extended to fit the inner wall of the lower tower (100), the flange ring (101) of the lower tower (100) is clamped between the clamping plate (7) and the clamping wedge (8), thereby limiting the upper and lower positions of the device. When the reel (6) rotates to reel in the guide rope (4), the lower end of the upper tower (100) is pulled to fit the upper end of the lower tower (100), so that the wind turbine tower is accurately hoisted and positioned.

2. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: A driving motor capable of driving the winding drum (6) to rotate is arranged in the central drum (1).

3. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: An air bag (71) is arranged above the clamping plate (7); The airbag (71) is connected to an inflation valve and an deflation valve, and the air pressure in the airbag (71) is adjusted by controlling the inflation valve and the deflation valve, thereby controlling the cushioning force when the lower end of the upper tower (100) and the upper end of the lower tower (100) are attached to each other and the height of each airbag (71).

4. The wind turbine tower hoisting auxiliary positioning device according to claim 3, characterized in that: Concentric through holes are provided in the middle of the clamping plate (7) and the clamping wedge block (8), and the airbag (71) is an annular structure.

5. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: A tension sensor (41) is provided at a position close to the end bolt (5) of each guide rope (4), and the diameter of the tension sensor (41) is smaller than the inner diameter of the connection hole (102).

6. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: A connecting rod (10) is hingedly connected to the end of each supporting rod (3), and each connecting rod (10) is hingedly connected to a connecting disk (11) that is concentric with the central tube (1).

7. The wind turbine tower hoisting auxiliary positioning device according to claim 6, characterized in that: A screw rod (12) is rotatably arranged above the central tube (1), and the screw rod (12) is threadedly connected to the connecting plate (11).

8. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: A guide wheel (9) is provided below the end of each support rod (3), and the guide rope (4) passes over the guide wheel (9) and is bent before being rolled into the reel (6).

9. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: A cavity (31) is provided inside the end of the support rod (3), the clamping wedge (8) penetrates the cavity (31), a plurality of vertical slide rails (13) are provided in the cavity (31), and the clamping wedge (8) is slidably arranged in the slide rails (13); A plurality of support springs (14) are arranged at the bottom of the cavity (31), and the support springs (14) are fitted into the clamping wedge (8).

10. The wind turbine tower hoisting auxiliary positioning device according to claim 1, characterized in that: The outer wall of the drum (6) is provided with a plurality of hanging rings (61) of different heights, and a hook (42) is fixed to one end of each guide rope (4) close to the drum (6).

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