Auxiliary positioning device and positioning method for mounting tower drum

Abstract

The invention relates to the technical field of wind driven generator towers, and particularly discloses an auxiliary positioning device for tower installation, which comprises a tower, connecting flanges are arranged at two ends of the tower, sliding grooves are formed in the side walls of the connecting flanges, racks are arranged at the bottoms of the middles of the sliding grooves, and positioning blocks are connected to two sides of the connecting flanges. A correction slope is arranged at the top of the positioning block, a limiting sliding block is arranged on one side of the positioning block, the positioning block is connected to the side wall of the connecting flange through the limiting sliding block, a lifting rod is connected to the middle of the positioning block, and an abutting block is connected to the top of the lifting rod. By means of the positioning blocks arranged in the device, when two tower barrels are built together and two connecting flanges are attached to each other, the positions can be corrected along the inclined faces of the positioning blocks for alignment, and repeated observation and adjustment by constructors are not needed.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower technology, and more specifically, to an auxiliary positioning device and positioning method for tower installation. Background Technology

[0002] The wind turbine tower is the main supporting structure of a wind turbine, serving as the support for the blades and the generator.

[0003] The existing tower construction method involves stacking several tower sections sequentially, connecting two tower sections with connecting flanges, and finally forming the entire support column. However, when the existing tower sections are hoisted and stacked, they are prone to swaying due to the suspended nature of the hoisting and the lack of limiting positions. This makes it difficult to position and align them, requiring repeated manual observation and adjustment to complete the positioning, which reduces the efficiency of the construction. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary positioning device and positioning method for tower installation, which solves the problem that when several tower sections are assembled, the unstable hoisting without being suspended makes them prone to shaking and difficult to position and align, requiring construction personnel to observe and adjust multiple times to achieve alignment.

[0005] This invention is achieved through the following technical solution:

[0006] This invention provides an auxiliary positioning device for tower installation, including a tower, with connecting flanges at both ends of the tower, a sliding groove on the side wall of the connecting flange, a rack at the bottom center of the sliding groove, positioning blocks connected to both sides of the connecting flange, a correction slope on the top of the positioning blocks, a limiting slider on one side of the positioning blocks, the positioning blocks being connected to the side wall of the connecting flange via the limiting slider, a lifting rod connected to the center of the positioning blocks, and a stop block connected to the top of the lifting rod.

[0007] Preferably, the connecting flange further includes a limiting ring groove and a pressing bevel, the limiting ring groove being disposed on the side wall of the connecting flange and the pressing bevel being disposed on the top edge of the connecting flange.

[0008] Preferably, the limiting ring groove is provided on the upper and lower sides of the side wall of the connecting flange near the sliding groove.

[0009] Preferably, the limiting ring groove cooperates with the limiting slider.

[0010] Preferably, the positioning block further includes a lifting groove, a shrinking groove, and a toothed rod. The lifting groove is located on one side of the positioning block, the shrinking groove is located on one side of the middle of the lifting groove, and the toothed rod is connected to the side of the positioning block near the bottom.

[0011] Preferably, the feature is as follows: the lifting rod is connected in the lifting groove, one end of the toothed rod protrudes from one side surface of the positioning block, and the protruding part of the toothed rod engages with the sliding groove.

[0012] Preferably, the side wall of the rack meshes with the rack, and the other end of the rack passes through the lifting groove and fits against one side of the lifting rod, and the rack meshes with one side of the lifting rod.

[0013] Preferably, the lifting rod further includes a stop block, a roller, a displacement groove, and a telescopic section. The stop block is connected to the top of the lifting rod, the roller is connected to the top of the stop block, the displacement groove is located at the bottom of the stop block, and the telescopic section is connected to the middle of the stop block.

[0014] Preferably, one end of the abutment protrudes from the opening of the lifting groove, the abutment is slidably connected to the top protrusion of the lifting rod through the displacement groove at the bottom, the roller is a round shaft with the protruding part connected to the top of the abutment, and the abutment cooperates with the shrinkage groove.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0016] 1. The positioning block in this device can be used to correct and align the two connecting flanges when they are attached together, without requiring construction personnel to observe and adjust them repeatedly.

[0017] 2. The device is also equipped with a lifting rod and a rack. The movement of the lifting rod causes the rack to rotate, which in turn causes the positioning block to move around the side wall of the connecting flange. By the positioning block conforming to the upper tower and the connecting flange and moving around, active correction is performed to ensure that all parts of the tower are aligned.

[0018] 3. The device is also equipped with a stop block, which can fit against the bottom of the connecting flange and move around when the positioning block moves around, so as to correct the bottom of the connecting flange and correct the tilt of the tower. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a side cross-sectional view of the connecting flange and positioning block of the present invention.

[0021] Figure 3 This is a top view cross-sectional structural diagram of the connecting flange of the present invention.

[0022] Figure 4 This is a side view cross-sectional structural diagram of the positioning block of the present invention.

[0023] Figure 5 For the present invention Figure 4Enlarged diagram of point A in the middle.

[0024] Reference numerals: 1-Tower, 101-Connecting flange, 102-Sliding groove, 1021-Rack, 103-Limiting ring groove, 104-Extrusion slope, 2-Positioning block, 201-Correction slope, 202-Lifting groove, 2021-Contraction groove, 203-Lifting rod, 2031-Abutting block, 2032-Roller, 2033-Displacement groove, 2034-Extension section, 204-Rack, 205-Limiting slider. Detailed Implementation

[0025] The following is combined Figures 1 to 5 The present invention will be described in detail below.

[0026] An auxiliary positioning device for tower installation includes a tower 1. Connecting flanges 101 are provided at both ends of the tower 1. A sliding groove 102 is provided on the side wall of the connecting flange 101. A rack 1021 is provided at the bottom center of the sliding groove 102. Positioning blocks 2 are connected to both sides of the connecting flange 101. A correction inclined surface 201 is provided on the top of the positioning block 2. A limiting slider 205 is provided on one side of the positioning block 2. The positioning block 2 is connected to the side wall of the connecting flange 101 via the limiting slider 205. A lifting rod 203 is connected to the center of the positioning block 2. A stop block 2031 is connected to the top of the lifting rod 203. The connecting flange 101 also includes a limiting ring groove 103 and a pressing inclined surface 104. The limiting ring groove 103 is provided on the side wall of the connecting flange 101, and the pressing inclined surface 104 is provided at the top edge of the connecting flange 101.

[0027] First, precast blocks are assembled into tower 1. Then, several tower 1s are stacked together to form the tower of the wind turbine. The tower 1s are then securely connected to each other through connecting flanges 101 at both ends. When the tower 1s are hoisted and erected, as one tower 1 is lowered onto the top of another tower 1, the connecting flange 101 of the upper tower 1 will be released onto the positioning block 2 on the side wall of the connecting flange 101 of the lower tower 1. If the tower 1 is not aligned during hoisting and lowering, the connecting flange 101 will contact the correction slope 201 on the top of the positioning block 2. The connecting flange 101 will slide along the correction slope 201 as it is lowered, thereby correcting the position of the tower 1 and aligning it with the tower 1 below. This also makes it easier for construction personnel to observe and adjust.

[0028] Furthermore, the limiting ring groove 103 is provided on the upper and lower sides of the side wall of the connecting flange 101 near the sliding groove 102. The limiting ring groove 103 cooperates with the limiting slider 205. The positioning block 2 also includes a lifting groove 202, a contraction groove 2021, and a rack 204. The lifting groove 202 is provided on one side of the positioning block 2, the contraction groove 2021 is provided on one side of the middle of the lifting groove 202, the rack 204 is connected to the side of the positioning block 2 near the bottom, and the lifting rod 203 is connected in the lifting groove 202. One end of the rack 204 protrudes from one side surface of the positioning block 2, and the protruding part of the rack 204 cooperates with the sliding groove 102. The side wall of the rack 204 meshes with the rack 1021, and the other end of the rack 204 passes through the lifting groove 202 and is connected to the lifting rod 203. One side is fitted together, and the toothed rod 204 meshes with one side of the lifting rod 203. The lifting rod 203 also includes a stop block 2031, a roller 2032, a displacement groove 2033, and a telescopic section 2034. The stop block 2031 is connected to the top of the lifting rod 203, the roller 2032 is connected to the top of the stop block 2031, the displacement groove 2033 is located at the bottom of the stop block 2031, and the telescopic section 2034 is connected to the middle of the stop block 2031. One end of the stop block 2031 protrudes from the opening of the lifting groove 202. The stop block 2031 is slidably connected to the top protrusion of the lifting rod 203 through the displacement groove 2033 at the bottom. The roller 2032 is a round shaft with a protruding part connected to the top of the stop block 2031, and the stop block 2031 cooperates with the contraction groove 2021.

[0029] After the connecting flange 101 of the upper tower 1 is initially aligned by the correction slope 201, the bottom of the connecting flange 101 will abut against the top of the abutment block 2031. Then, when it is lowered, pressure is applied to the abutment block 2031, causing it to move down in the lifting groove 202. During the downward movement, the lifting rod 203 will also move down. Because one side of the lifting rod 203 meshes with one side of the rack 204, the downward movement of the lifting rod 203 will cause the rack 204 to rotate. One end of the rack 204 is engaged in the sliding groove 102 and the rack 1. When the rack 1021 is engaged, the rack 204 rotates and moves along the rack 1021, thereby moving the entire positioning block 2. Because the positioning block 2 is connected to the limiting ring groove 103 through the limiting slider 205, the positioning block 2 can only move around the side wall of the connecting flange 101. This allows the positioning block 2 to fit against the side wall of the connecting flange 101 and move around, thereby actively correcting the contact at various points of the connecting flange 101 and monitoring whether there are any deformations or protrusions on the side wall of the connecting flange 101.

[0030] Meanwhile, the top protruding part of the abutment block 2031 is provided with a roller 2032. The rolling of the roller 2032 reduces the friction generated when the connecting flange 101 abuts against the bottom of the abutment block 2031. When the positioning block 2 moves around, the abutment block 2031 can also fit against the bottom of the connecting flange 101 and move around. If the tower 1 has a certain tilt, the circumferential movement of the abutment block 2031 can also be corrected.

[0031] Finally, when the abutment block 2031 moves to the top of the connecting flange 101, one end will contact the extrusion slope 104. Then, through continuous downward force, the abutment block 2031 will be displaced to one side along the extrusion slope 104 to fit into the shrinkage groove 2021. This prevents the abutment block 2031 from being between the two connecting flanges 101 and affecting the connection. At the same time, the abutment block 2031 can also be limited in the shrinkage groove 2021, preventing the positioning block 2 from moving on its own. One end of the abutment block 2031 is connected by the telescopic section 2034. When the abutment block 2031 is displaced into the shrinkage groove 2021, it will be compressed and contracted until the abutment block 2031 is aligned with the shrinkage groove 2021. Then, the spring of the shrinkage section 2034 will reset and fit into the shrinkage groove 2021 for limitation.

[0032] The following is a detailed implementation process of the present invention. First, prefabricated blocks are assembled into tower 1. Then, several tower 1s are stacked together to form the tower of the wind turbine. Then, the tower 1s are stably connected to each other through connecting flanges 101 at both ends. When the tower 1s are hoisted and erected, when one tower 1 is lowered to the top of another tower 1, the connecting flange 101 of the upper tower 1 will be released onto the positioning block 2 on the side wall of the connecting flange 101 of the lower tower 1. If they are not aligned during hoisting and lowering, the connecting flange 101 will contact the correction slope 201 on the top of the positioning block 2. The connecting flange 101 will slide along the correction slope 201 when it is lowered, thereby correcting the position of the tower 1 and aligning it with the lower tower 1. This also makes it easier for construction personnel to observe and adjust.

[0033] After the connecting flange 101 of the upper tower 1 is initially aligned by the correction slope 201, the bottom of the connecting flange 101 will abut against the top of the abutment block 2031. Then, when it is lowered, pressure is applied to the abutment block 2031, causing it to move down in the lifting groove 202. During the downward movement, the lifting rod 203 will also move down. Because one side of the lifting rod 203 meshes with one side of the rack 204, the downward movement of the lifting rod 203 will cause the rack 204 to rotate. One end of the rack 204 is engaged in the sliding groove 102 and meshes with the rack 1021, so that when the rack 204 rotates, it will move along the rack 1021, thereby moving the entire positioning block 2. Since the positioning block 2 is connected to the limiting ring groove 103 through the limiting slider 205, the positioning block 2 moves. This allows the positioning block 2 to move only around the side wall of the connecting flange 101, thus ensuring that the positioning block 2 fits against the side wall of the connecting flange 101 during its circumferential movement. This provides active contact correction at various points on the connecting flange 101 and also monitors for any deformation or protrusion on the side wall of the connecting flange 101. Additionally, a roller 2032 is provided on the top protruding part of the abutment block 2031. The rolling of the roller 2032 reduces the friction generated when the connecting flange 101 abuts against the bottom of the abutment block 2031, allowing the abutment block 2031 to also fit against the bottom of the connecting flange 101 during the circumferential movement of the positioning block 2. If the tower 1 has a certain tilt, the circumferential movement of the abutment block 2031 can also be corrected.

[0034] Finally, when the abutment block 2031 moves to the top of the connecting flange 101, one end will contact the extrusion slope 104. Then, through continuous downward force, the abutment block 2031 will be displaced to one side along the extrusion slope 104 to fit into the shrinkage groove 2021. This prevents the abutment block 2031 from being between the two connecting flanges 101 and affecting the connection. At the same time, the abutment block 2031 fitting into the shrinkage groove 2021 can also limit the movement, preventing the positioning block 2 from moving on its own.

Claims

1. An auxiliary positioning device for tower installation, comprising a tower (1), wherein connecting flanges (101) are provided at both ends of the tower (1), characterized in that, The side wall of the connecting flange (101) is provided with a sliding groove (102), and a rack (1021) is provided at the bottom of the middle part of the sliding groove (102). Positioning blocks (2) are connected to both sides of the connecting flange (101). A correction slope (201) is provided at the top of the positioning block (2). A limiting slider (205) is provided on one side of the positioning block (2). The positioning block (2) is connected to the side wall of the connecting flange (101) through the limiting slider (205). A lifting rod (203) is connected to the middle of the positioning block (2), and a stop block (2031) is connected to the top of the lifting rod (203).

2. An auxiliary positioning device for tower installation according to claim 1, characterized in that the connecting flange (101) further includes a limiting ring groove (103) and a pressing inclined surface (104), the limiting ring groove (103) is disposed on the side wall of the connecting flange (101), and the pressing inclined surface (104) is disposed on the top edge of the connecting flange (101).

3. An auxiliary positioning device for tower installation according to claim 2, characterized in that the limiting ring groove (103) is provided on the upper and lower sides of the side wall of the connecting flange (101) near the sliding groove (102).

4. An auxiliary positioning device for tower installation according to claim 2, characterized in that the limiting ring groove (103) cooperates with the limiting slider (205).

5. An auxiliary positioning device for tower installation according to claim 1, characterized in that the positioning block (2) further includes a lifting groove (202), a shrinking groove (2021) and a toothed rod (204), the lifting groove (202) is disposed on one side of the positioning block (2), the shrinking groove (2021) is disposed on one side of the middle part of the lifting groove (202), and the toothed rod (204) is connected to the side of the positioning block (2) near the bottom.

6. An auxiliary positioning device and positioning method for tower installation according to claim 5, characterized in that the lifting rod (203) is connected in the lifting groove (202), one end of the toothed rod (204) protrudes from one side surface of the positioning block (2), and the protruding part of the toothed rod (204) cooperates with the sliding groove (102).

7. An auxiliary positioning device for tower installation according to claim 5, characterized in that the side wall of the rack (204) meshes with the rack (1021), the other end of the rack (204) passes through the lifting groove (202) and fits against one side of the lifting rod (203), and the rack (204) meshes with one side of the lifting rod (203).

8. An auxiliary positioning device for tower installation according to claim 1, characterized in that the lifting rod (203) further includes a stop block (2031), a roller (2032), a displacement groove (2033), and a telescopic section (2034), wherein the stop block (2031) is connected to the top of the lifting rod (203), the roller (2032) is connected to the top of the stop block (2031), the displacement groove (2033) is disposed at the bottom of the stop block (2031), and the telescopic section (2034) is connected to the middle of the stop block (2031).

9. An auxiliary positioning device for tower installation according to claim 8, characterized in that one end of the abutment (2031) protrudes from the opening of the lifting groove (202), the abutment (2031) is slidably connected to the top protrusion of the lifting rod (203) through the displacement groove (2033) at the bottom, the roller (2032) is a round shaft with a protruding part connected to the top of the abutment (2031), and the abutment (2031) cooperates with the shrinkage groove (2021).

10. A positioning method based on the auxiliary positioning device for tower installation according to any one of claims 1-9, comprising the following steps; The first step is to assemble the precast blocks into several tower sections (1), and then use hoisting equipment to hoist and stack the tower sections (1) together. The second step is to connect the several tower sections (1) together using connecting flanges (101); In the first step, when several tower sections (1) are stacked together, the connecting flange (101) at the bottom of the tower section (1) will contact the positioning block (2) of the lower tower section (1). The positioning block (2) is used to correct and position the tower section (1). At the same time, the pressure during the lowering will generate a driving force on the positioning block (2), causing the positioning block (2) to move around and actively apply pressure to correct the upper tower section (1).

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