Butt joint device for offshore wind power tower drum

Abstract

The utility model provides a docking device for an offshore wind power tower drum, which comprises an upper tower drum and a lower tower drum, an inner clamping device is arranged between the upper tower drum and the lower tower drum, the inner clamping device comprises a fixed drum and a clamping plate, one end of the fixed drum is provided with a rotating screw rod, the rotating screw rod is provided with a movable sliding sleeve, a drum body comprises a first connecting sleeve and a second connecting sleeve, and the first connecting sleeve is connected with the second connecting sleeve. The movable sliding sleeve, the first connecting sleeve and the second connecting sleeve are all hinged to the clamping plate, and the clamping plate abuts against the inner wall of the clamping plate. The whole structure enables the axial opposite supporting process of the upper tower drum section and the lower tower drum section to be simple, and a large amount of hoisting time can be saved. The inner clamping device can be opened and closed, so that the lower tower drum rotates relative to the upper tower drum, a flange bolt hole in the bottom of the upper tower drum is aligned with a flange bolt hole in the top of the lower tower drum, the upper tower drum and the lower tower drum can be fixedly connected, the whole device is simple in structure, rapid to operate and short in window consumption period, the construction cost is greatly reduced, and the construction efficiency is improved. And the method has a relatively high popularization value.

Description

Technical Field

[0001] The utility model relates to the field of offshore wind power, in particular to a docking device for offshore wind power towers. Background Art

[0002] Offshore wind turbines usually require tall towers as supporting structures. The tower is installed on the tower, which is generally composed of multiple tower segments connected together. The upper tower segment is lifted by hoisting. During hoisting, the upper tower segment is aligned with the installed lower tower segment, and is fixed by bolts between the bottom flanges of the two towers. Then the next tower segment is hoisted until the tower is installed.

[0003] However, due to the complexity and uncertainty of the offshore environment, such as wind speed, waves, tides and other factors, it is difficult to align the axes of the top tower and the bottom tower during hoisting, resulting in difficulties in hoisting. After the axes of the two tower segments are aligned, it is difficult for the top tower to be accurately rotated and positioned relative to the lower tower during hoisting. As a result, the bolt holes on the flanges at the bottom of the two towers are also difficult to align, and the bolts are difficult to pass through the bolt holes on the flanges. The two tower segments are difficult to connect and fix, and the hoisting window period is long, wasting precious hoisting window period time, increasing costs, and greatly reducing construction efficiency. To this end, we propose a docking device for offshore wind turbine towers to solve the above problems. Utility Model Content

[0004] The utility model provides a docking device for offshore wind power towers, which solves the problems that the axes of the top tower and the bottom tower are difficult to align during hoisting; the upper tower at the top is difficult to rotate and position accurately relative to the lower tower, and the two segment towers are difficult to connect and fix, which wastes precious hoisting window time.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a docking device for offshore wind power towers, comprising an upper tower and a lower tower, an internal clamping device is provided between the upper tower and the lower tower, the internal clamping device comprises a fixed cylinder and a clamping plate, a rotating screw is provided at one end of the fixed cylinder, a movable sleeve is provided on the rotating screw, the cylinder body comprises a first connecting sleeve and a second connecting sleeve, the movable sleeve, the first connecting sleeve and the second connecting sleeve are all hinged to the clamping plate, and the clamping plate rests on the inner wall of the clamping plate.

[0006] In a preferred solution, a multi-layer bottom plate is provided on the lower tower, and the bottom plate includes a plurality of arc bottom plates in a circumferential array. A plurality of bolt holes are provided at one end of the lower tower, and the structure of the upper tower is the same as that of the lower tower.

[0007] In the preferred embodiment, the movable sleeve includes a hollow sleeve, a circular ring is provided on the sleeve, a plurality of hinge seats are provided on the circular ring, a threaded hole is provided on the sleeve, the threaded hole is connected to the rotating screw, a plurality of hinge rods are provided on the hinge seat, and the hinge rods are rotatably connected to the clamping plate.

[0008] In a preferred solution, the fixed cylinder includes a cylinder body, with a first connecting sleeve and a second connecting sleeve provided at both ends of the cylinder body respectively, a second rotating seat provided at one end of the second connecting sleeve, a plurality of connecting rods provided on the second rotating seat, and an arc-shaped blocking piece provided on the connecting rods.

[0009] In a preferred solution, the arc-shaped baffle rests on the arc-shaped bottom plate of the upper tower, a first motor is provided on the second rotating seat of the second connecting sleeve, and an output shaft of the first motor is connected to the second connecting sleeve.

[0010] In the preferred embodiment, the first connecting sleeve and the second connecting sleeve have the same structure. The first connecting sleeve includes a hollow second sleeve, a second ring is provided on the second sleeve, a plurality of second hinge seats are provided on the second ring, and a through hole is provided on the second sleeve. The first connecting sleeve is rotatably connected to the rotating screw, and the first connecting sleeve and the second connecting sleeve are both connected to the clamping plate through a plurality of hinged rods.

[0011] In a preferred solution, a mounting ring is provided at one end of the rotating screw, a rotating seat is provided on the mounting ring, a second motor is installed on the rotating seat, and an output shaft of the second motor is connected to the rotating screw.

[0012] In the preferred solution, a hollow mounting plate is provided on the lower tower, a mounting sleeve is provided on the mounting plate, a plurality of side grooves are provided on the mounting sleeve, a plurality of cylinders are provided on the mounting plate, and an arc-shaped clamping block is provided at one end of the cylinder.

[0013] In a preferred solution, a round table is provided on the mounting sleeve, the arc-shaped clamping block abuts against the side groove, and the mounting ring abuts against the arc-shaped clamping block.

[0014] The beneficial effects of the present invention are as follows: after the installation of the lower tower is completed, when it is necessary to install the upper tower segment on the top of the lower tower, an internal clamping device is installed on the upper tower to drive multiple cylinders on the lower tower to open multiple arc-shaped clamping blocks, and a crane lifts the upper tower and lowers it in the direction of the lower tower. The mounting ring slowly rests on the mounting sleeve, the second motor passes through the mounting sleeve, the mounting ring rests on the bottom of the mounting sleeve, and the mounting sleeve is provided with a round table so that the mounting ring slowly slides down along the round table to axially support the upper and lower tower segments. The axial support process of the upper and lower tower segments is simple, which can save a lot of hoisting time and greatly save construction costs.

[0015] The plurality of air cylinders are driven to connect the rotating lead screw with the lower tower drum, the second motor is driven to lift the moving sliding sleeve relative to the fixed drum, the plurality of clamping plates are opened and closed, the plurality of clamping plates are abutted on the inner wall of the upper tower drum, the first motor is driven to rotate the lower tower drum relative to the upper tower drum, the flange bolt hole at the bottom of the upper tower drum is aligned with the flange bolt hole at the top of the lower tower drum, the bolt can penetrate the upper tower drum and the lower tower drum, and the upper tower drum and the lower tower drum can be fixedly connected, the overall device is simple in structure and fast in operation, the overall device can accurately rotate the upper tower drum segment relative to the lower tower drum segment, align the bolt holes of the two, and connect the two, the overall structure has a shorter window period, greatly reduces the construction cost, improves the construction efficiency, and has great popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings and examples;

[0017] Figure 1 It is the axial view of the utility model whole structure;

[0018] Figure 2 It is the explosion view of the utility model whole structure;

[0019] Figure 3 It is the axial view of the utility model inner clamping device;

[0020] Figure 4 It is the axial view of the utility model fixed drum;

[0021] Figure 5 It is the axial view of the utility model moving sliding sleeve;

[0022] Figure 6 It is the sectional view of the utility model lower tower drum;

[0023] Figure 7 It is the utility model Figure 6 The enlarged view of A in the utility model;

[0024] In the drawing: upper tower drum 1;Lower tower drum 2;Arc-shaped bottom plate 201;Inner clamping device 3;Fixed drum 4;Drum body 401;First connecting sleeve 402;Second connecting sleeve 403;Connecting rod 404;Arc-shaped baffle 405;Through hole 406;Moving sliding sleeve 5;Sleeve 501;Ring 502;Hinge seat 503;Screw hole 504;Rotating lead screw 6;Mounting ring 601;Rotating seat 602;Clamping plate 7;Hinge rod 8;First motor 9;Second motor 10;Mounting sleeve 11;Side groove 1101;Circular table 1102;Air cylinder 12;Arc-shaped clamping block 13;Mounting plate 14. DETAILED DESCRIPTION

[0025] Example 1:

[0026] As Figure 1-7 In the figure, a docking device for an offshore wind power tower includes an upper tower 1 and a lower tower 2. An internal clamping device 3 is provided between the upper tower 1 and the lower tower 2. The internal clamping device 3 includes a fixed cylinder 4 and a clamping plate 7. A rotating screw 6 is provided at one end of the fixed cylinder 4. A movable sleeve 5 is provided on the rotating screw 6. The cylinder body 401 includes a first connecting sleeve 402 and a second connecting sleeve 403. The movable sleeve 5, the first connecting sleeve 402 and the second connecting sleeve 403 are all hinged to the clamping plate 7, and the clamping plate 7 rests on the inner wall of the clamping plate 7. With this structure, when the lower tower 2 is installed and the upper tower 1 segment needs to be installed on the top of the lower tower 2, the internal clamping device 3 is installed on the upper tower 1, and the multiple cylinders 12 on the lower tower 2 are driven to open the multiple arc-shaped clamping blocks 13. The crane lifts the upper tower 1 and lowers it in the direction of the lower tower 2. The mounting ring 601 slowly rests on the mounting sleeve 11, the second motor 10 passes through the mounting sleeve 11, the mounting ring 601 rests on the bottom of the mounting sleeve 11, and the mounting sleeve 11 is provided with a round platform 1102, so that the mounting ring 601 slowly slides down along the round platform 1102 to axially support the upper tower 1 and the lower tower 2. The axial support process of the upper tower 1 segment and the lower tower 2 segment is simple, which can save a lot of hoisting time and greatly save construction costs.

[0027] Drive multiple cylinders 12 to connect the rotating screw rod 6 with the lower tower tube 2, drive the second motor 10 to make the movable sleeve 5 rise and fall relative to the fixed tube 4, so that the multiple clamping plates 7 open and close, so that the multiple clamping plates 7 rest on the inner wall of the upper tower tube 1, drive the first motor 9 to rotate the lower tower tube 2 relative to the upper tower tube 1, so that the flange bolt hole at the bottom of the upper tower tube 1 is aligned with the flange bolt hole at the top of the lower tower tube 2, so that the bolts can pass through the upper tower tube 1 and the lower tower tube 2, so that the upper tower tube 1 and the lower tower tube 2 can be fixedly connected. The overall device has a simple structure and is quick to operate. The overall device can accurately rotate the upper tower tube 1 segment relative to the lower tower tube 2 segment to align the bolt holes of the two so that the two are connected. The overall structure has a short consumption window period, which greatly reduces the construction cost and improves the construction efficiency.

[0028] In a preferred solution, a multi-layer bottom plate is provided on the lower tower 2, and the bottom plate includes a plurality of arc bottom plates 201 in a circumferential array. A plurality of bolt holes are provided at one end of the lower tower 2, and the structure of the upper tower 1 is the same as that of the lower tower 2.

[0029] In a preferred embodiment, the movable sleeve 5 comprises a hollow sleeve 501, which is provided with a ring 502, which is provided with multiple hinged seats 503. The sleeve 501 is provided with a threaded hole 504, which is connected to the rotating screw 6. The hinged seats 503 are provided with multiple hinged rods 8, which are rotatably connected to the clamping plates 7. With this structure, the second motor 10 is driven to raise and lower the movable sleeve 5 relative to the fixed cylinder 4, thereby rotating the multiple hinged rods 8, opening and closing the multiple clamping plates 7, and causing the multiple clamping plates 7 to abut against the inner wall of the upper tower 1.

[0030] In a preferred embodiment, the fixed cylinder 4 includes a cylinder body 401, with a first connecting sleeve 402 and a second connecting sleeve 403 respectively provided at both ends of the cylinder body 401. A second rotating seat is provided at one end of the second connecting sleeve 403, and a plurality of connecting rods 404 are provided on the second rotating seat. Each connecting rod 404 is provided with an arc-shaped baffle 405. With this structure, the arc-shaped baffle 405 abuts against the arc-shaped bottom plate of the upper tower 1. The arc-shaped baffle 405 is connected to the arc-shaped bottom plate of the upper tower 1 by bolts. The multiple arc-shaped arc-shaped baffles 405 abut against the arc-shaped bottom plates of the circumferential array. There are gaps between the arc-shaped bottom plates, so that ladders are provided between the gaps to facilitate maintenance, installation, and disassembly.

[0031] In a preferred embodiment, the arcuate baffle 405 abuts against the arcuate bottom plate of the upper tower 1. The first motor 9 is mounted on the second rotating seat of the second connecting sleeve 403, and the output shaft of the first motor 9 is connected to the second connecting sleeve 403. With this structure, the arcuate baffle 405 abuts against the arcuate bottom plate of the upper tower 1. When the multiple clamping plates 7 abut against the inner wall of the upper tower 1, the first motor 9 is driven to rotate the fixed cylinder 4 relative to the second rotating seat, thereby rotating the inner clamping device 3 relative to the first motor 9, and thus rotating the upper tower 1 relative to the lower tower 2.

[0032] In a preferred embodiment, the first connecting sleeve 402 and the second connecting sleeve 403 have the same structure. The first connecting sleeve 402 includes a hollow second sleeve, which is provided with a second ring, which is provided with a plurality of second hinge seats, and the second sleeve is provided with a through hole 406. The first connecting sleeve 402 is rotationally connected to the rotating screw 6. The first connecting sleeve 402 and the second connecting sleeve 403 are both connected to the clamping plate 7 via a plurality of hinge rods 8. With this structure, when the second motor 10 is driven to move the sliding sleeve 5 relative to the rotating screw 6, the first connecting sleeve 402 and the second connecting sleeve 403 remain stationary, and the plurality of hinge rods 8 on the first connecting sleeve 402 and the second connecting sleeve 403 rotate to open and close the plurality of clamping plates 7.

[0033] In the preferred scheme, the end of the rotating screw rod 6 is provided with a mounting ring 601, the mounting ring 601 is provided with a rotating seat 602, the second motor 10 is mounted on the rotating seat 602, and the output shaft of the second motor 10 is connected with the rotating screw rod 6. Through the structure, the second motor 10 is driven to rotate the rotating screw rod 6 relative to the rotating seat 602, so as to rotate the rotating screw rod 6 relative to the lower tower drum 2, move the moving sleeve 5 relative to the rotating screw rod 6, open and close the plurality of clamping plates 7, and internally clamp the upper tower drum 1 by the inner clamping device 3.

[0034] In the preferred scheme, the lower tower drum 2 is provided with a hollow mounting plate 14, the mounting plate 14 is provided with a mounting sleeve 11, the mounting sleeve 11 is provided with a plurality of side grooves 1101, the mounting plate 14 is provided with a plurality of air cylinders 12, and the air cylinders 12 are provided with arc-shaped clamping blocks 13. Through the structure, the mounting sleeve 11 and the plurality of air cylinders 12 are mounted on the mounting plate 14, the mounting sleeve 11 is provided with a circular table 1102, the mounting ring 601 is slowly slid along the circular table 1102, and the upper tower drum 1 and the lower tower drum 2 are axially supported. The axial support process of the upper tower drum 1 segment and the lower tower drum 2 segment is simple, can greatly save hoisting time, and greatly saves construction cost.

[0035] In the preferred scheme, the mounting sleeve 11 is provided with a circular table 1102, the arc-shaped clamping blocks 13 are abutted on the side grooves 1101, and the mounting ring 601 is abutted on the arc-shaped clamping blocks 13. Through the structure, after the upper tower drum 1 segment is connected and mounted, before the crane hoists the next upper tower drum, the plurality of air cylinders 12 are driven to open the plurality of arc-shaped clamping blocks 13, the workers enter the tower drum from the tower drum manhole, the arc-shaped blocking piece of the upper tower drum 1 is connected with the arc-shaped blocking piece 405 through the second bolt, the second bolt is disassembled, the plurality of clamping plates 7 are retracted, the inner clamping device 3 is separated from the upper tower drum 1, the lifting lugs on the inner clamping device 3 are hoisted by the crane, the inner clamping device 3 is hoisted out of the upper tower drum 1, and the inner clamping device 3 is installed in the next upper tower drum.

[0036] The mounting plate 14 is mounted on the arc-shaped bottom plate 201, the mounting plate 14 at the bottom of the lower tower drum 2 is disassembled, the mounting plate 14 is mounted on the lower tower drum 2 which has been connected and fixed, the next upper tower drum segment is hoisted, and all the tower drum segments are hoisted until hoisting is completed. The structure of the inner clamping device 3 and the mounting plate 14 can be repeatedly used for many times, and materials and cost are saved.

[0037] The above-mentioned embodiment is only a preferred technical scheme of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be based on the technical scheme recorded in the claims, and the equivalent replacement scheme of the technical features recorded in the claims is the protection scope. That is, the equivalent replacement improvement within this range is also within the protection scope of the present application.

Claims

1. A docking device for offshore wind power towers, characterized by: The invention comprises an upper tower (1) and a lower tower (2), an inner clamping device (3) is provided between the upper tower (1) and the lower tower (2), the inner clamping device (3) comprises a fixed cylinder (4) and a clamping plate (7), a rotating screw (6) is provided at one end of the fixed cylinder (4), a movable sleeve (5) is provided on the rotating screw (6), a cylinder body (401) comprises a first connecting sleeve (402) and a second connecting sleeve (403), the movable sleeve (5), the first connecting sleeve (402) and the second connecting sleeve (403) are all hinged to the clamping plate (7), and the clamping plate (7) abuts against the inner wall of the clamping plate (7).

2. The docking device for offshore wind power tower according to claim 1, characterized in that: The lower tower (2) is provided with a multi-layer bottom plate, which includes a plurality of arc bottom plates (201) in a circumferential array. One end of the lower tower (2) is provided with a plurality of bolt holes. The structure of the upper tower (1) is the same as that of the lower tower (2).

3. The docking device for offshore wind power tower according to claim 1, characterized in that: The movable sleeve (5) includes a hollow sleeve (501), a circular ring (502) is provided on the sleeve (501), a plurality of hinge seats (503) are provided on the circular ring (502), a threaded hole (504) is provided on the sleeve (501), the threaded hole (504) is connected to the rotating screw (6), a plurality of hinge rods (8) are provided on the hinge seat (503), and the hinge rods (8) are rotatably connected to the clamping plate (7).

4. The docking device for an offshore wind power tower according to claim 1, characterized in that: The fixed cylinder (4) comprises a cylinder body (401), wherein two ends of the cylinder body (401) are respectively provided with a first connecting sleeve (402) and a second connecting sleeve (403), one end of the second connecting sleeve (403) is provided with a second rotating seat, a plurality of connecting rods (404) are provided on the second rotating seat, and an arc-shaped blocking piece (405) is provided on the connecting rods (404).

5. The docking device for offshore wind power tower according to claim 4, characterized in that: The arc-shaped baffle (405) abuts against the arc-shaped bottom plate of the upper tower (1); a first motor (9) is provided on the second rotating seat of the second connecting sleeve (403); and an output shaft of the first motor (9) is connected to the second connecting sleeve (403).

6. The docking device for offshore wind power tower according to claim 4, characterized in that: The first connecting sleeve (402) and the second connecting sleeve (403) have the same structure. The first connecting sleeve (402) includes a hollow second sleeve. The second sleeve is provided with a second ring. The second ring is provided with a plurality of second hinge seats. The second sleeve is provided with a through hole (406). The first connecting sleeve (402) is rotatably connected to the rotating screw (6). The first connecting sleeve (402) and the second connecting sleeve (403) are both connected to the clamping plate (7) via a plurality of hinge rods (8).

7. The docking device for offshore wind power tower according to claim 1, characterized in that: A mounting ring (601) is provided at one end of the rotating screw rod (6), a rotating seat (602) is provided on the mounting ring (601), a second motor (10) is mounted on the rotating seat (602), and an output shaft of the second motor (10) is connected to the rotating screw rod (6).

8. The docking device for offshore wind power tower according to claim 1, characterized in that: A hollow mounting plate (14) is provided on the lower tower (2), a mounting sleeve (11) is provided on the mounting plate (14), a plurality of side grooves (1101) are provided on the mounting sleeve (11), a plurality of cylinders (12) are provided on the mounting plate (14), and an arc-shaped clamping block (13) is provided at one end of the cylinder (12).

9. The docking device for offshore wind power tower according to claim 8, characterized in that: A truncated cone (1102) is provided on the mounting sleeve (11), the arc-shaped clamping block (13) abuts against the side groove (1101), and the mounting ring (601) abuts against the arc-shaped clamping block (13).

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