Tower construction hoisting system and method

Abstract

The present invention belongs to the field of transfer and hoisting, and specifically discloses a tower construction hoisting system and method, wherein the tower construction hoisting system includes a transfer platform, a first hoisting mechanism, and a second hoisting mechanism. The transfer platform includes a track built on the ground, a mounting plate movably mounted on the track, and a driving member for driving the mounting plate to move. A plurality of telescopic plates are fixed on the mounting plate along its circumference. The telescopic plates are telescopic in a horizontal plane in a direction close to or away from the mounting plate. The telescopic plates are mounted with limiting members for connecting with components or limiting the position of components, as well as positioning members for positioning with the first hoisting mechanism or the second hoisting mechanism. The solution of the present invention can solve the problem that components cannot be directly hoisted into the hoisting range of the tower crane due to construction site restrictions.

Description

Technical Field

[0001] The invention belongs to the field of transport and hoisting, and in particular relates to a tower construction hoisting system and method. Background Art

[0002] During the construction of long-span arch bridges, many challenges are often faced, especially the fixing of arch ribs and hoisting box girders, which usually requires the construction of an ultra-high tower to provide the necessary hooking and hoisting platform. Figure 8 As shown, the super-high tower 22 is usually built on the shore and located behind the base of the arch bridge. During the construction of the arch bridge base, a large foundation pit 20 is dug, resulting in a relatively narrow space in front of the super-high tower 22. In addition, due to the shape of the foundation pit 20, the space on the side of the super-high tower 22 will also be affected.

[0003] During the erection of the super-tall tower 22, column components often need to be rotated and transported, and then hoisted to the appropriate height and position by the tower crane 23 for installation. Because the space in front and on the sides of the super-tall tower 22 is limited, the component assembly area (assembled from steel pipes, columns, and other materials) requires a large space and may require the use of a crane or gantry crane 21. Therefore, the component assembly area is generally far from the lifting range of the tower crane 23.

[0004] In addition, due to the heavy tonnage, long segments and large size of the components, safe construction requires that the components be as close to the tower crane 23 as possible so that the components can be safely hoisted by the tower crane 23. In actual construction, the components are generally transported to a range of no more than 25 meters from the tower crane 23 to complete safe hoisting. However, due to the space limitations in front and on the sides of the super-high tower 22, conventional gantry cranes 21 and cranes are unable to transport the components to a suitable location. Figure 8 The limit transport position of the gantry crane 21 is shown in FIG. Figure 8 If the tower crane 23 on the left side shown is to be transported into the lifting range of the tower crane 23, it must pass through the narrow space in front of the super-high tower 22. Therefore, how to improve the lifting and transportation efficiency becomes an issue that needs to be considered during construction. In addition, the component size is large, especially the height of the component reaches 12m, which is very easy to overturn during transportation. The safety risk is high, so the safety of transportation is also an issue that needs to be considered. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a tower construction hoisting system and method to solve the problem that components cannot be directly hoisted into the hoisting range of the tower crane due to construction site limitations.

[0006] According to an embodiment of the present invention, the present invention adopts the following technical solutions:

[0007] The tower construction hoisting system includes a transfer platform, a first hoisting mechanism and a second hoisting mechanism. The first hoisting mechanism is used to hoist the components onto the transfer platform, the transfer platform is used to transfer the components to the second hoisting mechanism, and the second hoisting mechanism is used to hoist the components to the designated position; the transfer platform includes a track built on the ground, a mounting plate movably mounted on the track and a driving member for driving the mounting plate to move; a plurality of telescopic plates are fixed on the mounting plate along its circumference; the telescopic plates are telescopic in the horizontal plane in the direction of approaching or moving away from the mounting plate; the telescopic plates are installed with limiting members for connecting with the components or limiting the components and positioning members for positioning with the first hoisting mechanism or the second hoisting mechanism.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] In this solution, the components can be placed at a suitable distance from the super-high tower installation area, and then transferred on the ground by setting up a transfer platform to transfer the components to the second lifting mechanism, reducing the risk of high-altitude operations during long-distance transportation.

[0010] The design of the telescopic plate allows it to be extended and retracted according to the size of the component, making the limiter suitable for components of different sizes. The setting of the positioning member allows the positioning member to be positioned with the first lifting mechanism or the second lifting mechanism, achieving positioning during the lifting process, facilitating the alignment of the component with the first lifting mechanism and the second lifting mechanism before and after transportation, thereby improving the lifting and transportation efficiency. The positioning member is also installed on the telescopic plate, and its position can be adjusted to prevent the positioning member from being blocked after the component is placed on the mounting plate.

[0011] Furthermore, it also includes a lifting rope for tying to the component and a lifting ring installed on the lifting rope. There are multiple groups of lifting ropes and they correspond to the limiting members one by one.

[0012] Furthermore, the first lifting mechanism includes a first lifting plate and a first hook installed on the first lifting plate; the second lifting mechanism includes a second lifting plate and a second hook installed on the second lifting plate; the first hook and the second hook are both used for lifting the lifting ring.

[0013] Furthermore, the limiting member includes a limiting rod fixed on the telescopic plate, the limiting rod is a telescopic rod that is telescopic in the vertical direction, and a clamping claw for clamping the lifting ring is installed on the top of the limiting rod.

[0014] Furthermore, the clamping claw includes a mounting seat rotatably connected to the top of the limiting rod and a clamping member installed on the mounting seat.

[0015] Furthermore, the clamping claw includes a mounting seat slidably connected to the top of the limiting rod and a clamping member installed on the mounting seat.

[0016] Furthermore, the positioning member includes a distance sensor mounted on the clamping member.

[0017] Furthermore, a groove is provided on the mounting plate, a visual inspection instrument is installed in the groove, and a transparent plate for covering the visual inspection instrument is detachably connected to the groove.

[0018] Furthermore, the driving component includes a winch installed on the track near the second lifting mechanism, a steering pulley rotatably connected to the track near the first lifting mechanism, and a steel strand. The middle part of the steel strand is wound on the winch, one end of the steel strand is fixed on the mounting plate, and the other end of the steel strand is also fixed on the mounting plate after passing through the steering pulley.

[0019] According to an embodiment of the present invention, the present invention also adopts the following technical solutions:

[0020] The tower construction hoisting method adopts the tower construction hoisting system and includes the following steps:

[0021] S1. Hoist the component by a first hoisting mechanism, hoist the component above the mounting plate, and lower the component onto the mounting plate;

[0022] S2. Positioning the connection between the first hoisting mechanism and the component by means of a positioning member, limiting the connection of the component by means of a limiting member, and releasing the connection between the component and the first hoisting mechanism;

[0023] S3, the mounting plate is driven to slide by the driving member, and the mounting plate drives the component to move to the vicinity of the second lifting mechanism;

[0024] S4. The second hoisting mechanism locates the component by using the positioning piece, connects the component to the second hoisting mechanism, and hoists the component to a specified height by using the second hoisting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a state in which a first lifting mechanism in an embodiment of the present invention lowers a component onto a mounting plate.

[0026] Figure 2 This is a schematic diagram of the state in which the positioning member is completed and the first lifting mechanism is positioned in an embodiment of the present invention.

[0027] Figure 3 Schematic diagram of the state in which the limiting member limits the component in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of a state in which a component is transported to a second lifting mechanism and the positioning piece is positioned by the second lifting mechanism in an embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of a state in which a second lifting mechanism lifts a component from a mounting plate in an embodiment of the present invention.

[0030] Figure 6 Schematic diagram of the structure of the driving member in an embodiment of the present invention.

[0031] Figure 7 for Figure 1 Enlarged view of part A.

[0032] Figure 8 This is a top view of the erection of a super-high tower in the background technology of the present invention.

[0033] In the figure: 1. Mounting plate; 2. Component; 3. Telescopic plate; 4. Limit rod; 5. Mounting seat; 6. Clamp; 7. Drive shaft; 8. Distance sensor; 9. First hanging plate; 10. First hook; 11. Lifting rope; 12. Lifting ring; 13. Track; 14. Second hanging plate; 15. Second hook; 16. Steering pulley; 17. Steel strand; 18. Transparent plate; 19. Groove; 20. Foundation pit; 21. Gantry crane; 22. Tower; 23. Tower crane; 24. Transfer area. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings, and specific implementation methods will be given.

[0035] like Figure 1 As shown, the tower construction hoisting system includes a transfer platform, a first hoisting mechanism, a second hoisting mechanism and a hoisting rope 11 for tying to the component 2. In the actual construction process, refer to Figure 8 The tower construction hoisting system of this scheme is used for the construction of the tower 22 located behind the foundation pit 20 of the arch bridge base. The transfer platform, the first hoisting mechanism, and the second hoisting mechanism are all built on land, and the transfer platform is set up in the transfer area 24.

[0036] The first hoisting mechanism is used to hoist the component 2 onto the transfer platform. The first hoisting mechanism includes a first hanging plate 9 and a first hook 10 installed on the first hanging plate 9. In the actual design process, the first hoisting mechanism can use a gantry crane 21 or a crane in the existing technology to realize the lifting of the first hanging plate 9. For example, the first hanging plate 9 is connected to the lifting mechanism of the gantry crane 21 by a conventional method in the existing technology (such as bolt connection). The lifting of the gantry crane 21 drives the first hanging plate 9 to rise. Of course, the first hanging plate 9 can also be lifted by other methods. Figure 8 The gantry crane 21 is installed on the ground with a certain installation space on the side of the tower 22 in a conventional manner in the prior art. The gantry crane 21 is used to lift the component 2 from the assembly area to the transfer platform, and the component 2 can fall on the transfer platform.

[0037] The second hoisting mechanism is used to hoist the component 2 to the designated position. The second hoisting mechanism includes a second hanging plate 14 and a second hook 15 installed on the second hanging plate 14. In the actual design process, the second hoisting mechanism can use a tower crane 23 device in the existing technology to realize the lifting of the second hanging plate 14. For example, the second hanging plate 14 is connected to the lifting mechanism of the tower crane 23 by a conventional method in the existing technology (such as bolt connection). The lifting of the tower crane 23 drives the second hanging plate 14 to rise. Of course, the second hanging plate 14 can also be lifted by other methods. Figure 8 The tower crane 23 is set on the ground on both sides of the tower 22 construction area, and is used to hoist components 2 to build the tower 22.

[0038] A lifting ring 12 is installed on the lifting rope 11, and the first hook 10 and the second hook 15 are both used to lift the lifting ring 12. During actual assembly, the lifting of the component 2 can be achieved by tying the lifting rope 11 to the component 2 and then connecting it to the first lifting mechanism or the second lifting mechanism through the lifting ring 12.

[0039] The transfer platform is used to transfer the component 2 to the second hoisting mechanism. The transfer platform includes a track 13 built on the ground, a mounting plate 1 movably mounted on the track 13, and a driving member for driving the mounting plate 1 to move. Specifically, a trench is excavated on the ground between the first hoisting mechanism and the second hoisting mechanism, and fixed channel steel is buried in the trench. The channel steel is used as the track 13. According to the size of the mounting plate 1, multiple tracks 13 made of channel steel can be set. A slider is fixed to the mounting plate 1. The slider can be an I-beam. The slider is slidably connected to the track 13. In order to facilitate the sliding of the slider relative to the track 13, a polytetrafluoroethylene plate can be attached to the inner wall of the channel steel to reduce movement friction.

[0040] Combine Figure 6 As shown, the drive element includes a winch mounted on the track 13 near the second hoisting mechanism, a deflection pulley 16 rotatably connected to the track 13 near the first hoisting mechanism, and a steel strand 17. The middle portion of the steel strand 17 is wound around the winch. Specifically, the steel strand 17 is wound around the winch's drive shaft 7. When the winch's drive shaft 7 rotates, one end of the steel strand 17 is wound and the other end is released. One end of the steel strand 17 is fixed to the mounting plate 1, and the other end of the steel strand 17 passes through the deflection pulley 16 and is also fixed to the mounting plate 1. By changing the direction of the winch's drive shaft 7, the steel strand 17 can be used to pull the mounting plate 1 toward the first hoisting mechanism or the second hoisting mechanism. The fact that the steel strand 17 is connected at both ends of the mounting plate 1 also improves the sliding stability of the mounting plate 1. Of course, in actual design, any other drive device known in the art that can drive the mounting plate 1 to slide on the track 13 can also be used as the drive element, and the mounting plate 1 can even be manually pulled to slide, and the sliding is not limited to the above embodiment.

[0041] A plurality of telescopic plates 3 are fixed to the mounting plate 1 along its circumference. The telescopic plates 3 are telescopic in the horizontal plane in the direction of approaching or moving away from the mounting plate 1. The telescopic plates 3 are electrically operated telescopic plates or other telescopic plates that can achieve telescopic functions in the prior art. In actual use, the mounting plate 1 mainly bears the weight of the component 2. The upper surface of the telescopic plates 3 can be slightly lower than the upper surface of the mounting plate 1, thereby reducing the load-bearing capacity of the telescopic plates 3 and increasing the service life of the telescopic plates 3. The telescopic plates 3 are equipped with a limiter for connecting with the component 2 or limiting the position of the component 2, as well as a positioning member for positioning with the first lifting mechanism or the second lifting mechanism.

[0042] The limiting member includes a limiting rod 4 fixed on the telescopic plate 3. The limiting rod 4 is a telescopic rod that is telescopic in the vertical direction. The telescopic rod is an electric telescopic rod or a rod body that can realize the telescopic function in the prior art. Through the movement of the telescopic plate 3, components 2 of different sizes can be placed on the mounting plate 1. Through the setting of the limiting rod 4, the limiting rod 4 limits the circumference of the component 2, thereby preventing the component 2 from falling from the mounting plate 1 during the movement of the mounting plate 1.

[0043] There are multiple sets of lifting ropes 11 and they correspond to the limiters one by one, and there are also multiple lifting rings 12. Then the number of first hooks 10 and second hooks 15 can correspond to the number of lifting rings 12 one by one, or all the lifting rings 12 can be hung on one first hook 10 or second hook 15. The design can be carried out according to actual needs. In this embodiment, Figure 1 Only two sets of limiters and suspension ropes 11 are shown on the left and right sides of component 2. In actual design, limiters and suspension ropes 11 can also be designed on the front and back sides of component 2 according to actual needs. A clamping claw for clamping the suspension ring 12 is installed on the top of the limiter rod 4. By vertically extending and retracting the limiter rod 4, the limiter rod 4 can adapt to components 2 of different heights, thereby enabling the clamping claw to clamp the suspension ring 12. In this embodiment, two designs of the clamping claw are provided, which can be selected according to actual needs, as follows:

[0044] A. Figure 1 As shown in the mounting seat 5 on the left side, the clamping jaw includes a mounting seat 5 that is rotatably connected to the top of the limiting rod 4 and a clamping member 6 mounted on the mounting seat 5. The rotation axis of the mounting seat 5 is parallel to the axis of the limiting rod 4. By rotating the mounting seat 5, the clamping member 6 can be positioned above the mounting plate 1 (see FIG. Figure 2 As shown) and the state of rotating away from the top of the mounting plate 1 (see Figure 1As shown, when the clamping member 6 deviates from the upper side of the mounting plate 1, it does not hinder the vertical movement of the component 2, and the component 2 can be hoisted onto the mounting plate 1 by the first hoisting mechanism, or the component 2 can be hoisted away from the mounting plate 1 by the second hoisting mechanism. In this solution, the mounting base 5 can be rotated by a motor, or by other conventional rotation drive devices.

[0045] B. Figure 1 As shown in the mounting seat 5 on the right side of the middle, the clamping claw includes a mounting seat 5 slidably connected to the top of the limit rod 4 and a clamping member 6 mounted on the mounting seat 5. The mounting seat 5 slides in the left and right directions. By sliding the mounting seat 5, the clamping member 6 can be positioned above the mounting plate 1 (see FIG. Figure 2 As shown) and the state of sliding away from the top of the mounting plate 1 (see Figure 1 The only difference from design method A is the movement mode of the mounting base 5. In this solution, the mounting base 5 can be driven to slide by a cylinder or by other linear drive devices in the prior art.

[0046] The clamping member 6 can be a conventional clamping claw, mechanical claw, or other structure in the prior art, as long as it can clamp the lifting ring 12. In the actual design process, a pressure sensor can be installed on the clamping surface of the clamping member 6 to detect the pressure of clamping the lifting ring 12 and to detect whether the lifting rope 11 is tightened by the lifting ring 12, so as to avoid excessive clamping force on the lifting ring 12 or pulling the lifting rope 11 too tight.

[0047] The positioning member includes a distance sensor 8 mounted on the clamping member 6. The distance sensor 8 can be a laser rangefinder or other distance measuring instrument in the prior art. When the first hoisting mechanism hoists the component 2 onto the mounting plate 1, the first hook 10 is not yet disconnected from the hoist ring 12. Figure 1 At this time, the limit rod 4 is extended so that the height of the mounting seat 5 is higher than the height of the top of the component 2, and then the mounting seat 5 is moved so that the clamping member 6 is located below the first hanging plate 9. The distance sensor 8 detects the distance between the clamping member 6 and the first hanging plate 9. If the clamping member 6 is not located below the first hanging plate 9, the distance sensor 8 cannot detect the data or the detected data is obviously incorrect. At this time, it is necessary to continue to move the mounting seat 5. In addition, the height of the limit rod 4 can be further adjusted by detecting the distance between the clamping member 6 and the first hanging plate 9 so that the position of the clamping member 6 is closer to the first hook 10, so as to facilitate the clamping of the lifting ring 12. Figure 2In actual use, the lifting ring 12 can be manually removed from the first hook 10 and then placed on the clamp 6. At this time, the gantry crane 21 and the tower crane 23 are not in the lifting process, and the component 2 is also stably placed on the mounting plate 1, greatly reducing the safety risks of manual intervention. Of course, it is also possible to use existing equipment such as visual sensors to detect the position of the first hook 10 and gradually adjust the position of the clamp 6 based on the detection signal, thereby achieving semi-automatic or fully automated operation.

[0048] After the clamping parts 6 are clamped to the corresponding lifting rings 12, the mounting base 5 is moved so that the clamping parts 6 are deviated from the upper part of the component 2, and then the limiting rod 4 is retracted and the lifting rope 11 is gradually tightened, so that the lifting rope 11 is connected between the component 2 and the limiting rod 4, which is similar to tying the component 2 to the mounting plate 1, reducing the shaking of the component 2 during transportation and avoiding the risk of the lifting rope 11 shaking during transportation. In actual use, by adjusting the position of the telescopic plate 3, the limiting rod 4 can play a certain limiting role in the circumference of the component 2, and does not have to be stuck at the side wall of the component 2. Figure 3 Status shown.

[0049] Correspondingly, when it is necessary to transfer the component 2 from the mounting plate 1 to the second lifting mechanism, the limiting rod 4 is first extended and the mounting seat 5 is moved so that the clamping member 6 clamps the lifting ring 12 to the top of the component 2, and then the distance sensor 8 detects the distance between it and the second hanging plate 14 so that the second hanging plate 14 can be located above the clamping member 6. Figure 4 At this time, the lifting ring 12 can be transferred to the second hook 15, which can be done manually or by detecting the position of the second hook 15 by a device such as a visual sensor in the prior art as mentioned above and gradually adjusting the position of the clamping member 6 according to the detection signal, thereby achieving semi-automatic or fully automated operation.

[0050] Through the design of this solution, the transfer of component 2 from the first lifting mechanism to the mounting plate 1, or from the mounting plate 1 to the second lifting mechanism, only requires the position of the lifting ring 12 to be moved. Even if it is manually operated, the efficiency of transfer and lifting is greatly improved. Moreover, the transfer platform is set on the ground, which also reduces the risk of high-altitude operations. The limit rod 4 is used to pull the lifting rope 11 to limit the position of component 2, and no complicated assembly is required, which is convenient for operation. Of course, in actual use, in order to ensure the stability of transfer, a certain number of bolts can also be connected between component 2 and mounting plate 1.

[0051] Further, combined Figure 7As shown, in order to prevent the component 2 from colliding with the limit rod 4 or interfering with it when it is hoisted from the first hoisting mechanism to the mounting plate 1, a groove 19 is provided on the mounting plate 1, and a visual inspection instrument is installed in the groove 19. For example, the visual inspection instrument can use optical elements (camera, etc.) in the prior art to shoot the top of the mounting plate 1. After the component 2 is hoisted above the mounting plate 1, the position of the component 2 and the positions of the multiple limit rods 4 and the clamping parts 6 can be photographed and inspected by the visual inspection instrument, and then adjusted by telescopic movement of the telescopic plate 3 and the mounting seat 5. In order to prevent the component 2 from squeezing the visual inspection instrument, a transparent plate 18 for covering the visual inspection instrument is detachably connected to the groove 19. Specifically, the transparent plate 18 is bonded or bolted to the mounting plate 1, and the transparent plate 18 has a certain protective effect on the visual inspection instrument.

[0052] The tower construction hoisting method adopts the tower construction hoisting system of the above embodiment, and includes the following steps:

[0053] S1. Hoist the component 2 by the first hoisting mechanism and hoist the component 2 above the mounting plate 1. First, use the visual inspection instrument to take pictures of the position of the component 2 and the positions of the multiple limit rods 4 and clamps 6. Then extend the telescopic plate 3 and adjust the position of the mounting seat 5 so that the limit rods 4 and clamps 6 are not located below the component 2. Lower the component 2 to the mounting plate 1 by the first hoisting mechanism. Figure 1 Status shown.

[0054] S2. Position the connection between the first hoisting mechanism and the component 2 by using the positioning member, limit the connection of the component 2 by using the limiting member, and release the connection between the first hoisting mechanism and the lifting ring 12. Specifically, extend the limiting rod 4 so that the height of the mounting seat 5 is higher than the height of the top of the component 2, and then move the mounting seat 5 so that the clamping member 6 is located below the first hanging plate 9. Use the distance sensor 8 to detect whether the clamping member 6 is located below the first hanging plate 9 and detect the distance between the clamping member 6 and the first hanging plate 9, so that the position of the clamping member 6 is closer to the first hook 10. Figure 2 Then the lifting ring 12 is removed from the first hook 10 and placed on the clamping member 6.

[0055] When the clamping members 6 are all clamped to the corresponding lifting rings 12, the mounting base 5 is moved so that the clamping members 6 deviate from the upper part of the component 2, and then the limiting rod 4 is retracted and the lifting rope 11 is gradually tightened, so that the lifting rope 11 is connected between the component 2 and the limiting rod 4. Figure 3 Status shown.

[0056] S3. The driving member drives the mounting plate 1 to slide, and the mounting plate 1 drives the component 2 to move to the vicinity of the second hoisting mechanism. Specifically, the winch rotates, so that the steel strand 17 pulls the mounting plate 1 to slide on the track 13, pulling the mounting plate 1 to the vicinity of the second hoisting mechanism.

[0057] S4. The second hoisting mechanism locates the position of the component 2 through the positioning member, connects the component 2 to the second hoisting mechanism, and hoists the component 2 to the specified height through the second hoisting mechanism. Specifically, first extend the limit rod 4 and move the mounting seat 5 so that the clamping member 6 clamps the lifting ring 12 above the component 2, and then uses the distance sensor 8 to detect the distance between it and the second hanging plate 14 so that the second hanging plate 14 can be located above the clamping member 6. Figure 4 The state shown, at this time, the lifting ring 12 can be transferred to the second hook 15. Then move the mounting base 5 so that the clamping member 6 no longer hinders the vertical lifting of the component 2. Figure 5 In the state shown, the component 2 can be hoisted by the second hoisting mechanism.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. Tower construction hoisting system, characterized by: It includes a transfer platform, a first hoisting mechanism and a second hoisting mechanism. The first hoisting mechanism is used to hoist the component onto the transfer platform. The transfer platform is used to transfer the component to the second hoisting mechanism. The second hoisting mechanism is used to hoist the component to a designated location. The transfer platform includes a track built on the ground, a mounting plate movably installed on the track, and a driving part for driving the mounting plate to move. Several telescopic plates are fixed on the mounting plate along its circumference. The telescopic plates are telescopic in the horizontal plane in the direction of approaching or moving away from the mounting plate. The telescopic plates are installed with limiting parts for connecting with components or limiting the position of components, as well as positioning parts for positioning with the first lifting mechanism or the second lifting mechanism.

2. The tower construction hoisting system according to claim 1, characterized in that: It also includes a lifting rope for tying to the component and a lifting ring installed on the lifting rope. The lifting rope is provided in multiple groups and corresponds to the limiting parts one by one.

3. The tower construction hoisting system according to claim 2, characterized in that: The first hoisting mechanism includes a first hoisting plate and a first hook installed on the first hoisting plate; the second hoisting mechanism includes a second hoisting plate and a second hook installed on the second hoisting plate; the first hook and the second hook are both used for hoisting the lifting ring.

4. The tower construction hoisting system according to claim 2, characterized in that: The limiting member comprises a limiting rod fixed on the telescopic plate, the limiting rod is a telescopic rod that is telescopic in the vertical direction, and a clamping claw for clamping the lifting ring is installed on the top of the limiting rod.

5. The tower construction hoisting system according to claim 4, characterized in that: The clamping claw comprises a mounting seat rotatably connected to the top of the limiting rod and a clamping piece mounted on the mounting seat.

6. The tower construction hoisting system according to claim 4, characterized in that: The clamping claw comprises a mounting seat slidably connected to the top of the limiting rod and a clamping piece mounted on the mounting seat.

7. The tower construction hoisting system according to claim 5 or 6, characterized in that: The positioning member includes a distance sensor mounted on the clamping member.

8. The tower construction hoisting system according to claim 1, characterized in that: The installation plate is provided with a groove, in which a visual inspection instrument is installed, and a transparent plate for covering the visual inspection instrument is detachably connected to the groove.

9. The tower construction hoisting system according to claim 1, characterized in that: The driving component includes a winch installed on the track near the second lifting mechanism, a steering pulley rotatably connected to the track near the first lifting mechanism, and a steel strand. The middle part of the steel strand is wound on the winch, one end of the steel strand is fixed on the mounting plate, and the other end of the steel strand is also fixed on the mounting plate after passing through the steering pulley.

10. Tower construction hoisting method, characterized by: The tower construction hoisting system according to any one of claims 1 to 9 is used, comprising the following steps: S1. Hoist the component above the mounting plate using the first hoisting mechanism, and lower the component onto the mounting plate; S2. Positioning the connection between the first hoisting mechanism and the component by means of a positioning member, limiting the connection of the component by means of a limiting member, and releasing the connection between the component and the first hoisting mechanism; S3, the mounting plate is driven to slide by the driving member, and the mounting plate drives the component to move to the vicinity of the second lifting mechanism; S4. The second hoisting mechanism locates the component by using the positioning piece, connects the component to the second hoisting mechanism, and hoists the component to a specified height by using the second hoisting mechanism.

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