Self-lifting hoisting operation platform for wind power mixed tower construction

Abstract

The invention belongs to the technical field of wind power tower construction, and discloses a wind power mixed tower construction self-lifting hoisting operation platform which comprises a platform body, a winding drum, a lifting device and a fixing device. The winding drum is rotationally connected to the center position of the platform body, a driving device is fixedly arranged on the platform body, partition plates are fixedly arranged on the outer wall of the winding drum, and the N partition plates are arranged in the axis direction of the winding drum at intervals; the lifting device comprises lifting cables, fixed pulleys and fixed lug plates used for being fixed to the inner wall of the tower drum, the fixed pulleys are rotationally connected to the platform body, one ends of the lifting cables are detachably arranged on the fixed lug plates, the other ends of the lifting cables are fixedly arranged on the winding drum through guiding of the fixed pulleys, and the different lifting cables are wound around different winding areas of the winding drum; the fixing device comprises a fixing cable, one end of the fixing cable is arranged on the fixing lug plate, and the other end of the fixing cable is fixedly arranged on the platform body. The method can reduce the waiting time, greatly improves the construction efficiency, and is suitable for installing the tower section of the wind power generation tower.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power tower barrel construction, and relates to an operation platform for wind power hybrid tower construction, specifically an operation platform for self-lifting and hoisting of wind power hybrid tower construction. Background Art

[0002] A wind power generation device includes a concrete tower barrel and a power generation assembly. Among them, the concrete tower barrel is composed of multiple tower sections, and the height of each tower section is generally 3 - 4m. During the construction of the tower barrel, a temporary construction platform needs to be built at the connection position of the tower sections to carry construction workers and store construction materials. Then, a hoisting machine is used to hoist the tower section to be installed from the ground to the position to be installed. The temporary construction platform needs to be fixed on the inner wall of the concrete tower barrel. Construction workers perform the construction of the tower section seat grout and the positioning and installation of the upper tower section on the platform. After each tower section is constructed, the temporary construction platform needs to be lifted and fixed to the top of the just-installed tower section, and then the construction of the upper tower section is carried out. The installation height of the temporary construction platform gradually increases with the number of installed tower sections.

[0003] In the prior art, the lifting of the temporary construction platform mainly relies on a large crane. During lifting, first, the large crane is used to lift the temporary construction platform. After removing the connection between the temporary construction platform and the inside of the tower barrel, the hook of the large crane is lifted to raise the temporary construction platform to the fixed position of the upper tower section, and then the temporary construction platform is fixed on the inner wall of the just-completed tower section. This process is gradually carried out until the installation of the uppermost tower section is completed. This way of lifting the temporary construction platform has the following disadvantages: Since one large crane is equipped for the installation of one concrete tower barrel, when installing a new tower section, it is necessary to first use the large crane to lift the temporary construction platform to the corresponding position and complete the fixation before hoisting the tower section. During hoisting, the hook of the large crane needs to fall from a high position to the ground and then be lifted from the ground to the position to be installed. However, the operating speed of the crane is slow, and construction workers need to wait for a long time on the temporary construction platform, resulting in a significant reduction in construction efficiency. Summary of the Invention

[0004] To solve the above-mentioned deficiencies in the prior art, the present invention aims to provide an operation platform for self-lifting and hoisting of wind power hybrid tower construction, so as to achieve the purpose of improving construction efficiency.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: An operation platform for self-lifting and hoisting of wind power hybrid tower construction includes a platform body, a winding drum, a lifting device for lifting the platform body, and a fixing device for fixing the platform body; The take-up reel is rotatably connected to the central position of the platform body. A driving device for driving the take-up reel to rotate is fixedly arranged on the platform body. Partition plates are fixedly arranged on the outer wall of the take-up reel. N partition plates are arranged at intervals along the axial direction of the take-up reel, dividing the take-up reel into N - 1 trough-shaped winding areas along the axial direction. The number of the lifting devices matches the number of the winding areas, at least three are provided, and they are evenly spaced with the take-up reel as the center. The lifting device includes a lifting cable, a fixed pulley, and a fixed ear plate for fixing on the inner wall of the tower barrel. The fixed pulley is rotatably connected to the platform body. One end of the lifting cable is detachably arranged on the fixed ear plate, and the other end is fixedly arranged on the take-up reel through the guiding of the fixed pulley. Different lifting cables are wound on different winding areas of the take-up reel. The fixing device includes a fixing cable. One end of the fixing cable is detachably arranged on the fixed ear plate, and the other end is fixedly arranged on the platform body.

[0006] As a limitation of the present invention, the heights of each fixed pulley are different, so that the height at which each lifting cable is led out after passing through the fixed pulley matches the height of the corresponding winding area on the take-up reel.

[0007] As a further limitation of the present invention, the lifting cable extends along the tangent direction of the take-up reel to the fixed pulley.

[0008] As another limitation of the present invention, a support frame is fixedly arranged at the center of the platform body. The driving device includes a rotating shaft, a motor, a driving gear fixedly arranged on the output shaft of the motor, and a driven gear fixedly arranged on the rotating shaft. One end of the rotating shaft is rotatably connected to the platform body, and the other end is rotatably connected to the support frame. The driving gear meshes with the driven gear.

[0009] As a limitation of the present invention, the platform body is of a circular structure, including multiple nested cross beams and multiple longitudinal beams connecting the cross beams. A panel is fixedly arranged on the frame structure formed by the cross beams and the longitudinal beams. An opening for avoiding the ladder inside the tower barrel is arranged on the platform body.

[0010] As a further limitation of the present invention, the lifting cable is a steel wire rope, and a hook is fixedly arranged at one end, and is hung on the fixed ear plate through the hook.

[0011] As a third limitation of the present invention, the fixing cable is a steel wire rope or a steel chain, and a hook is fixedly arranged at one end, and is hung on the fixed ear plate through the hook.

[0012] As a limitation of the present invention, five lifting devices are evenly spaced. Six partition plates are arranged on the take-up reel, dividing the take-up reel into five winding areas. Five fixed ear plates and five fixing cables are arranged.

[0013] Due to the adoption of the above technical solutions, compared with the prior art, the beneficial effects obtained by the present invention are: (1) In the present invention, the fixed ear plate is arranged at the uppermost end of the tower section. The self-lifting is completed by driving the winding drum through the driving device to wind up the lifting cable. After fixing the ear plate by using the original ladder inside the tower barrel, starting the motor can quickly lift the operation platform to the required position and then fix it with the fixing cable. During this process, the construction workers can always stand on the platform without having to stand under the platform, ensuring high safety. At the same time, the displacement can be completed without using a large crane. The large crane can lift the tower section to be installed to the required position in advance. After the operation platform completes self-lifting and fixing, it can be put into the installation process of the tower section, saving the waiting time for lifting the tower section and greatly improving the work efficiency. Especially when installing the tower section at a relatively high position, due to the high lifting height, hoisting the tower section in advance has a more obvious time-saving effect. During self-lifting, different lifting cables are wound and unwound in different winding areas on the winding drum, so that each lifting cable is independently wound in different areas on the winding drum without interference, the overall force is uniform, the stability during lifting is high, the structure is ingenious and not complex, easy to process, and the manufacturing cost is low. (2) In the present invention, the height of each lifting cable is consistent with the height of the corresponding winding area and extends along the tangent direction of the winding drum, improving the smoothness of the winding of the lifting cable on the winding drum and ensuring the stability of the platform lifting.

[0014] In summary, the present invention can reduce the waiting time, greatly improve the construction efficiency, and is applicable to installing the tower sections of wind power generation tower barrels. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0016] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the platform body of the embodiment of the present invention after removing the panel; Figure 3 is a three-dimensional structural schematic diagram of the support frame of the embodiment of the present invention; Figure 4 is a three-dimensional structural schematic diagram of the other side of the platform body of the embodiment of the present invention after removing the panel; Figure 5 is a structural schematic diagram of the positional relationship between the winding drum and the support frame of the embodiment of the present invention; Figure 6 is Figure 4 an enlarged structural schematic diagram of part A; Figure 7 is a structural schematic diagram when lifting the operation platform of the embodiment of the present invention.

[0017] In the figure: 1. Platform body; 11. Cross beam; 12. Longitudinal beam; 13. Panel; 2. Support frame; 21. Top plate; 22. Bottom plate; 23. Enclosure plate; 24. Side brace; 3. Take-up reel; 4. Partition board; 5. Driving device; 51. Rotating shaft; 52. Motor; 53. Driving gear; 54. Driven gear; 6. Lifting device; 61. Lifting cable; 62. Fixed pulley; 63. Fixed ear plate; 7. Hook; 8. Fixed cable; 91. Next tower section; 92. This tower section; 93. Previous tower section. Specific embodiments

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and understanding the present invention, and are not intended to limit the present invention.

[0019] As Figure 1 shown, it includes a platform body 1, a take-up reel 3, a lifting device 6 and a fixing device. The platform body 1 is used to carry construction workers and construction materials. The lifting device 6 is used to lift the platform body 1 to the required position, and then the platform body 1 is fixed at the required position through the fixing device. Construction workers can construct on the platform body 1. Without the need to rely on a large crane to complete the lifting of the platform body 1. Therefore, the large crane can lift the tower section to be installed to the required position during construction, and wait for the platform body 1 to be in place before installing the tower section, saving the time of waiting for the tower section to be lifted and improving work efficiency. And because the tower barrel is relatively high, the higher the construction position is, the higher the height of the tower section lifted by the large crane is. Since the tower section is relatively large, the lifting speed of the large crane is slow, and the lifting time spent is longer. If the tower section is hoisted to the position to be installed in advance, it can greatly save time and improve construction efficiency. The specific structure will be elaborated in detail below.

[0020] As Figure 1 、 Figure 2 shown, the platform body 1 is of a circular structure, including a cross beam 11, a longitudinal beam 12 and a panel 13. The cross beam 11 is bent into a circle using a square tube. Multiple circles of cross beams 11 are provided to form an inter-nested structure. The longitudinal beam 12 uses a square tube to fixedly connect each circle of cross beams 11. In this embodiment, five longer longitudinal beams 12 are provided to evenly divide the circular platform body 1 into five parts. The panel 13 is fixed on the cross beam 11 and the longitudinal beam 12 to form the platform body 1. An opening for avoiding the internal ladder of the tower barrel is provided on the platform body 1. The opening is located between two longitudinal beams 12, and both sides of the opening are connected by two shorter longitudinal beams 12. An opening is provided on the panel 13 corresponding to the position of the lifting device 6 for installing the lifting device 6.

[0021] As Figure 3As shown, a support frame 2 is fixedly provided at the center of the platform body 1. The support frame 2 includes a top plate 21, a bottom plate 22, side braces 24 and a surrounding plate 23. The surrounding plate 23 is cylindrical and is fixedly provided on the circular top plate 21. The side braces 24 connect the top plate 21 and the circular bottom plate 22. There are five side braces 24, which are evenly spaced. The end of the longitudinal beam 12 of the platform body 1 extends to the surrounding plate 23 of the support frame 2 and is fixedly connected to the surrounding plate 23.

[0022] As Figure 4 , Figure 5 shown, the winding drum 3 is rotatably connected to the support frame 2 at the center of the platform body 1 and is located between the top plate 21 and the bottom plate 22 of the support frame 2. A partition plate 4 is fixedly provided on the outer wall of the winding drum 3. There are six partition plates 4 spaced along the axis of the winding drum 3, dividing the winding drum 3 into five winding areas along the axis direction, so that both sides of the winding area are blocked by the partition plates 4, forming a trough-shaped winding area.

[0023] As Figure 4 , Figure 6 shown, a driving device 5 for driving the winding drum 3 to rotate is fixedly provided on the support frame 2. The driving device 5 includes a rotating shaft 51, a motor 52, a driving gear 53 and a driven gear 54. One end of the rotating shaft 51 is rotatably connected to the top plate 21 of the support frame 2, and the other end is rotatably connected to the bottom plate 22 of the support frame 2. The winding drum 3 is fixedly provided on the rotating shaft 51. The motor 52 is connected to a speed reducer and is fixedly provided on the top plate 21 of the support frame 2. The driving gear 53 is fixedly provided on the output shaft of the speed reducer, and the driven gear 54 is fixedly provided on the rotating shaft 51. The driving gear 53 meshes with the driven gear 54, and the rotation of the motor 52 drives the winding drum 3 to rotate.

[0024] As Figure 1 , Figure 2As shown, the number of lifting devices 6 matches the number of winding areas. In this embodiment, five lifting devices 6 are provided and are evenly spaced around the winding drum 3 as the center. The lifting device 6 includes a lifting cable 61, a fixed pulley 62, and a fixed ear plate 63 for fixing on the inner wall of the tower barrel. The fixed pulley 62 is rotatably connected to the longitudinal beam 12 of the platform body 1, and the rotation direction of the fixed pulley 62 is the same as the extension direction of the longitudinal beam 12. In this embodiment, the lifting cable 61 is made of steel wire rope. One end of the lifting cable 61 is fixedly provided with a hook 7. One end of the lifting cable 61 is hung on the fixed ear plate 63 through the hook 7, and the other end is fixedly arranged on the winding drum 3 after being guided by the fixed pulley 62. Different lifting cables 61 are wound around different winding areas of the winding drum 3. Since different winding areas are at different heights, in order to ensure the smoothness of winding, each fixed pulley 62 is set at a different height, so that the height at which each lifting cable 61 is led out after passing through the fixed pulley 62 matches the height of the corresponding winding area on the winding drum 3, that is, the fixed pulley 62 corresponding to the winding area at a higher position is set at a higher position, and the fixed pulley 62 corresponding to the winding area at a lower position is set at a lower position, ensuring that each lifting cable 61 is wound around the winding drum 3 in a basically horizontal state due to the setting of the partition 4. If the lifting cable 61 is inclined, it will not only cause friction with the partition 4, but also generate a large pulling force on the rotation of the winding drum 3, affecting the smoothness of the rotation of the winding drum 3. In order to further improve the smoothness of the rotation of the winding drum 3, the lifting cable 61 extends along the tangent direction of the winding drum 3 to the fixed pulley 62, that is, the longitudinal beam 12 of the platform body 1 is fixed by extending and releasing the wire along the tangent of the winding drum 3.

[0025] The fixing device includes a fixing cable 8. The fixing cable 8 is made of steel wire rope or iron chain. The number of fixing cables 8 matches the number of lifting cables 61. In this embodiment, the fixing cable 8 is made of steel wire rope and five are provided. One end of the fixing cable 8 is fixedly provided with a hook, and is hung on the fixed ear plate 63 through the hook, and the other end is fixedly arranged on the platform body 1.

[0026] The fixed ear plate 63 includes a vertical plate fixed on the inner wall of the tower barrel and a horizontal plate fixed on the vertical plate. Since the fixed ear plate 63 needs to hang the lifting cable 61 and the fixing cable 8, two hanging holes are provided on the horizontal plate.

[0027] As Figure 7As shown in the figure, after the installation of the current tower section 92 is completed, the operation platform is located at the top of the next tower section 91 at this time. When it is necessary to install the previous tower section 93, the construction workers use the original ladder inside the tower barrel to fix a new set of fixed ear plates 63 to the inner wall at the uppermost end of the current tower section 9. Then, reverse the motor 52 to release the lifting cable 61, remove the hook 7 on the lifting cable 61, and hang it on the fixed ear plate 63 at the top of the current tower section 92 through the original ladder inside the tower barrel. Then, rotate the motor 52 forward to tighten the lifting cable 61, slightly lift the platform, remove the hook on the fixed cable 8 from the fixed ear plate 63 of the next tower section 91, and remove the fixed ear plate 63 on the next tower section 91. Continue to tighten the lifting cable 61 to lift the platform body 1 to the top of the current tower section 92, hang the hook of the fixed cable 8 on the fixed ear plate 63 at the top of the current tower section 92, and slightly release the lifting cable 61 to lower the platform body 1 so that the fixed cable 8 is stressed and the platform body 1 enters the working state. At this time, the platform body 1 is located at a position near the top of the current tower section 92, and the top of the current tower section 92 is at the position of the human waist, which is convenient for the construction workers to construct the connection between the bottom end of the previous tower section 93 and the top end of the current tower section 92.

[0028] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A self-lifting hoisting operation platform for the construction of a wind power hybrid tower, characterized in that: It includes a platform body, a winding drum, a lifting device for lifting the platform body, and a fixing device for fixing the platform body; The winding drum is rotatably connected to the central position of the platform body. A driving device for driving the winding drum to rotate is fixedly installed on the platform body. Partition plates are fixedly installed on the outer wall of the winding drum. There are N partition plates arranged at intervals along the axial direction of the winding drum, dividing the winding drum into N - 1 groove-shaped winding areas along the axial direction; The number of the lifting devices matches the number of the winding areas, at least three are provided, and they are evenly spaced with the winding drum as the center. The lifting device includes a lifting cable, a fixed pulley, and a fixed ear plate for fixing on the inner wall of the tower barrel. The fixed pulley is rotatably connected to the platform body. One end of the lifting cable is detachably arranged on the fixed ear plate, and the other end is fixedly arranged on the winding drum after being guided by the fixed pulley. Different lifting cables are wound on different winding areas of the winding drum; The fixing device includes a fixing cable. One end of the fixing cable is detachably arranged on the fixed ear plate, and the other end is fixedly arranged on the platform body.

2. The self-elevating hoisting operation platform for the construction of the wind power hybrid tower according to claim 1, wherein: The heights of each fixed pulley are different, so that the height at which each lifting cable is led out after passing through the fixed pulley matches the height of the corresponding winding area on the winding drum.

3. The self-lifting hoisting operation platform for the construction of the wind power hybrid tower according to claim 2, wherein: The lifting cable extends tangentially to the fixed pulley along the winding drum.

4. The self-lifting hoisting operation platform for the construction of a wind power hybrid tower according to any one of claims 1-3, characterized in that: A support frame is fixedly installed at the center of the platform body. The driving device includes a rotating shaft, a motor, a driving gear fixedly installed on the output shaft of the motor, and a driven gear fixedly installed on the rotating shaft. One end of the rotating shaft is rotatably connected to the platform body, and the other end is rotatably connected to the support frame. The driving gear meshes with the driven gear.

5. The self-elevating hoisting operation platform for the construction of the wind power hybrid tower according to claim 4, wherein: The platform body is of a circular structure, including multiple circles of nested cross beams and multiple longitudinal beams connecting the cross beams. A panel is fixedly installed on the frame structure formed by the cross beams and the longitudinal beams. An opening for avoiding the ladder inside the tower barrel is provided on the platform body.

6. The self-elevating hoisting operation platform for the construction of a wind power hybrid tower according to claim 5, characterized in that: The lifting cable is a steel wire rope, and a hook is fixedly installed at one end, and is hung on the fixed ear plate through the hook.

7. The self-elevating hoisting operation platform for the construction of a wind power hybrid tower according to any one of claims 1-3, 5, and 6, characterized in that: The fixing cable is a steel wire rope or a steel chain, and a hook is fixedly installed at one end, and is hung on the fixed ear plate through the hook.

8. The self-elevating hoisting operation platform for the construction of a wind power hybrid tower according to claim 7, characterized in that: Five lifting devices are evenly spaced. Six partition plates are arranged on the winding drum, dividing the winding drum into five winding areas. Five fixed ear plates and five fixing cables are provided.

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