A c-type slide device and method for wind turbine tower installation

Abstract

The application provides a C-shaped slide device and method for wind turbine tower installation, which comprises a slide, a slide shoe, a slide block, a hydraulic jack, a bolt, a tower fixing platform; wherein the slide is fixed on the ground in a C-shaped steel shape, the slide shoe structure is built-in the slide, and cooperates with the slide structure; the slide block is placed directly below the slide shoe, the hydraulic jack is placed directly below the slide block, the bolt can be inserted into the pin hole of the slide and the slide block, the tower fixing platform is fixedly connected with the slide shoe, and a connecting fixing frame is arranged at the top of the slide. The hydraulic jack is used for synchronous jacking to push the slide block and the slide shoe to slide, drive the tower fixing platform and the wind turbine tower to lift, one pad is lifted by one hydraulic jack, the bolt is inserted into the slide and the slide block, the hydraulic jack falls, the slide block is placed on the upper part of the hydraulic jack again, and the bolt is removed; the cyclic jacking method can be used for installing, maintaining and disassembling the wind turbine tower, and is suitable for promotion and use.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower installation technology. It is particularly suitable for the installation and construction of tall and large wind turbine towers, especially for ultra-high and ultra-large wind turbine towers, and can also be used for the disassembly and maintenance of wind turbine towers. Background Technology

[0002] The wind turbine tower is a crucial structure of a wind turbine generator. Large-capacity, high-hub wind turbines of 3MW and above are becoming the future trend, correspondingly requiring stronger, taller, and more economical onshore wind turbine towers. The height of wind turbine towers has evolved from tens of meters in the early days to nearly 200 meters today. Tall towers, large-capacity, and high-hub wind turbines are the future trend, but wind turbine towers are heavy and tall. Traditional hoisting methods are costly and dangerous, and large cranes are difficult to rent, making on-site installation and dismantling cumbersome. This slows down the installation process and increases the cost of the wind turbine. Therefore, a simple and inexpensive installation device is urgently needed. Summary of the Invention

[0003] In view of this, the present invention proposes a C-type sliding rail device and method for installing wind turbine towers, which can lift and install tall, large, and heavy wind turbine towers. It can also lower the wind turbine tower for convenient wind turbine maintenance.

[0004] The technical solution of this invention is implemented as follows: This invention provides a C-shaped sliding track device and method for installing wind turbine towers, including a sliding track, a sliding shoe, a sliding block, a hydraulic jack, a tower fixing platform, and pins; wherein, the sliding track is C-shaped steel, with the upper part closed on three sides and one side partially open; the bottom of the sliding track is closed on three sides and one side is fully open; the bottom of the sliding track is provided with two rows of four pin holes, and the device is provided with three sets of the sliding track, evenly distributed in a circle, with a set of rigid connecting parts in the middle and at the top.

[0005] The sliding shoe is adapted to the slide track; the sliding shoe can slide freely within the slide track; the other side of the sliding shoe is designed with an outward flange connection structure that can be rigidly connected to the tower fixing platform; when the sliding shoe slides, it can drive the tower fixing platform to move.

[0006] The slider has multiple blocks that are adapted to the slide rail. Each slider has a row of pin holes that are adapted to the pin holes in the slide rail. When force replacement is required during construction, pins can be inserted, and the slider shoe replaces the hydraulic jack to bear the force.

[0007] The hydraulic jacks, consisting of three pieces, are located at the bottom of the slide. The hydraulic jacks press against the pad, causing the slider to move upward along the slide, thereby driving the sliding shoe upward and providing lifting power.

[0008] The tower fixing platform has a wind turbine tower fixing device in the middle and three sets of rigid connecting flanges around its circumference, which can be fixedly connected to the flange connection structure extending from the slipper. The size of the tower fixing platform varies depending on the different sections of the wind turbine tower.

[0009] The system includes six pins that can be inserted into the slider and the slide rail. These pins can be used to replace the hydraulic jack when it needs to be subjected to alternating forces.

[0010] Based on the above technical solution, preferably, the tower fixing platform is fixedly adapted to the wind turbine tower, and the tower fixing platform is rigidly connected to the slipper.

[0011] Furthermore, preferably, the sliding shoe is adapted to the slide track and can slide freely on the slide track.

[0012] Furthermore, preferably, a set of rigid connectors is provided in the middle and top of the slide, and the bottom is provided with a sliding shoe and jack placement port, and two rows of pin holes are provided at the bottom.

[0013] Furthermore, preferably, the slider is adapted to the slide rail and can slide freely on the slide rail. The slider is provided with a row of pin holes, which are adapted to the pin holes of the slide rail.

[0014] Furthermore, preferably, the top of the hydraulic jack abuts against the slider, which can push the slider and the slipper to move up and down along the slide.

[0015] The present invention has the following advantages over the prior art:

[0016] This invention discloses a C-type sliding track device for installing wind turbine towers, and based on the device, a method for lifting and installing wind turbine towers is provided.

[0017] S1. Fix the lower part of the first section of the wind turbine tower (S1) to the tower fixing platform (5). The hydraulic jack (4) lifts synchronously, so that the sliding shoe (2) and the slider (3) move upward in the slide (1), driving the tower fixing platform (5) and the wind turbine tower to move upward. The slider (3) moves upward into place, and the pin (6) is inserted to connect the slide (1) and the slider (3).

[0018] S2. The hydraulic jack (4) descends, the hydraulic jack (4) descends to the position and the slider (3) is placed on its upper part. The hydraulic jack (4) is simultaneously lifted to a suitable height to loosen the pin (6) and remove the pin (6).

[0019] S3. Repeat steps S1 and S2 until this section of the wind turbine tower (S1) is lifted to the installation height;

[0020] S4. Fix the lower part of the second wind turbine tower (S2) to the tower fixing platform (5), and fix the lower part of the first wind turbine tower (S1) to the upper part of the second wind turbine tower (S2). The hydraulic jack (4) is lowered to remove all the sliders (3) in the slide (1) and enter the initial working state of step S1;

[0021] S5. Repeat steps S1, S2, S3, and S4 until the penultimate section of the wind turbine tower is raised to the installation height.

[0022] S6. The lower part of the last section of the wind turbine tower (Sn) is fixed to the wind turbine foundation platform, and the upper part is fixedly connected to the second to last section of the wind turbine tower. The hydraulic jack (4) is lowered to remove all the slip shoes (2) and sliders (3) in the slide (1) to complete the installation of the wind turbine tower. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the installation device disclosed in this invention in its initial use state.

[0025] Figure 2 is a three-dimensional structural diagram of the initial construction lifting state of the installation device disclosed in this invention;

[0026] Figure 3 This is a partial enlarged view of the hydraulic jack retracting and the slider pin being lifted by force in the present invention.

[0027] Figure 4 This is a three-dimensional structural diagram of the initial use state of the second section of the tower disclosed in this invention during jacking;

[0028] Figure 5 This is a diagram showing the connection structure of the tower, sliding shoe, and tower fixing platform disclosed in this invention. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] likeFigure 1 As shown in Figure 2, this invention discloses a C-type slide rail device and method for installing wind turbine towers, enabling the installation, inspection, and maintenance of segmented wind turbine towers. The device includes a slide rail 1, a sliding shoe 2, a slider 3, a hydraulic jack 4, a tower fixing platform 5, and a pin 6.

[0031] The slide rail 1 is C-shaped steel with three sets of rails. The bottom of the slide rail has two rows of four pin holes, and the top has a rigid connecting piece 12. The sliding shoe 2 is adapted to the slide rail 1 and can slide freely within the slide rail. The other side of the sliding shoe 2 has an extended flange connection structure 21 for rigid connection to the tower fixing platform 5. Multiple sliders 3 are provided and adapted to the slide rail 1. Each slider 3 has two pin holes 31, which are adapted to the pin holes 11 of the slide rail. When force replacement is required during construction, pins 6 can be inserted, and the slider 3 replaces the hydraulic jack 4 to bear the force.

[0032] Hydraulic jacks 4, consisting of three pieces, are located at the bottom of the slide rail 1. The hydraulic jacks 4 press against the slider 3, causing the slider 3 to move upward along the slide rail 1, thereby driving the sliding shoe 2 to move upward and providing lifting power.

[0033] The tower fixing platform 5 has a wind turbine tower fixing device 52 in the middle and three sets of rigid connecting flanges 51 arranged circumferentially, which can be fixedly connected to the connecting structure of the flange 21 extending outward from the slipper 2. The size of the tower fixing platform 5 varies depending on the different sections of the wind turbine tower S.

[0034] There are six pins 6. The pins 6 can be inserted into the slider 3 and the slide rail 1. When the hydraulic jack 4 needs to be subjected to alternating force, the pins 6 can be used to replace the force.

[0035] According to the present invention, a method for jacking up and installing a wind turbine tower is provided, the steps of which are as follows.

[0036] S1. Fix the lower part of the first section of the wind turbine tower (S1) to the tower fixing platform (5). The hydraulic jack (4) lifts synchronously, so that the sliding shoe (2) and the slider (3) move upward in the slide (1), driving the tower fixing platform (5) and the wind turbine tower to move upward. The slider (3) moves upward into place, and the pin (6) is inserted to connect the slide (1) and the slider (3).

[0037] S2. The hydraulic jack (4) descends, the hydraulic jack (4) descends to the position and the slider (3) is placed on its upper part. The hydraulic jack (4) is simultaneously lifted to a suitable height to loosen the pin (6) and remove the pin (6).

[0038] S3. Repeat steps S1 and S2 until this section of the wind turbine tower (S1) is lifted to the installation height;

[0039] S4. Fix the lower part of the second wind turbine tower (S2) to the tower fixing platform (5), and fix the lower part of the first wind turbine tower (S1) to the upper part of the second wind turbine tower (S2). The hydraulic jack (4) is lowered to remove all the sliders (3) in the slide (1) and enter the initial working state of step S1;

[0040] S5. Repeat steps S1, S2, S3, and S4 until the penultimate section of the wind turbine tower is raised to the installation height.

[0041] S6. The lower part of the last section of the wind turbine tower (Sn) is fixed to the wind turbine foundation platform, and the upper part is fixedly connected to the second to last section of the wind turbine tower. The hydraulic jack (4) is lowered to remove all the slip shoes (2) and sliders (3) in the slide (1) to complete the installation of the wind turbine tower.

[0042] The above description is merely a preferred embodiment of the invention and is not intended to limit the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A C-type sliding track device for wind turbine tower installation, characterized in that: Includes slide (1), slide shoe (2), slider (3), hydraulic jack (4), tower fixing platform (5), and pin (6); Among them, the slide (1) is provided in three pieces, evenly distributed in a circle, with the bottom surface fixed to the ground; the slide (1) is in the shape of a C-shaped steel, with a notch on one side of the bottom of the slide, and two rows of pin holes vertically opened on the side, two in each row, and a set of rigid connecting parts on the top of each; The sliding shoe (2) is provided in three parts and fits into the slide (1); the sliding shoe (2) is built into the slide (1) on three sides, and the other side is designed with an outward flange connection structure. The lower surface of the sliding shoe is sealed with an iron plate. The slider (3) is provided with multiple parts, which are fitted into the slide rail (1); the slider (3) has two rows of pin holes in the middle, which are fitted into the pin holes of the slide rail (1); The hydraulic jack (4) is provided in three parts and is placed at the bottom of the slide (1). The upper part of the hydraulic jack (4) abuts against the slider (3). Three sets of flange connectors are evenly distributed around the circumference of the tower fixing platform (5). These flange connectors are rigidly connected to the flange connection structure extending outward from the slipper (2). The wind turbine tower is placed in the middle of the fixing platform. The pin (6) is inserted into the slide (1) and the slider (3) according to the process to replace the hydraulic jack (4) in bearing the force.

2. A method for jacking and installing a wind turbine tower, using the C-type sliding track device for tower installation as described in claim 1, characterized in that, The steps include the following: S1. Fix the lower part of the first section of the wind turbine tower to the tower fixing platform (5), and the hydraulic jack (4) lifts synchronously, so that the sliding shoe (2) and the slider (3) move up in the slide (1), driving the tower fixing platform (5) and the wind turbine tower to move up. The slider (3) moves up to the position, and the pin (6) is inserted to connect the slide (1) and the slider (3). S2, the hydraulic jack (4) descends, the hydraulic jack (4) descends to the position and the slider (3) is placed on its upper part, the hydraulic jack (4) is simultaneously lifted to remove the pin (6). S3. Repeat steps S1 and S2 until this section of the wind turbine tower is lifted to the installation height; S4. Fix the lower part of the second wind turbine tower to the tower fixing platform (5), and fix the lower part of the first wind turbine tower to the upper part of the second wind turbine tower; the hydraulic jack (4) falls down, removes all the sliders (3) in the slide (1), and enters the initial state of S1. S5. Repeat steps S1, S2, S3, and S4 until the second-to-last section of the wind turbine tower is raised to the installation height. S6. The lower part of the last section of the wind turbine tower is fixed to the wind turbine foundation platform, and the upper part is fixedly connected to the second to last section of the wind turbine tower. The hydraulic jack (4) is lowered to remove all the slip shoes (2) and sliders (3) in the slide (1) to complete the installation of the wind turbine tower.

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