Tower construction hoisting system and method

Abstract

The invention belongs to the field of transfer hoisting, and particularly discloses a tower construction hoisting system and method.The tower construction hoisting system comprises a transfer platform, a first hoisting mechanism and a second hoisting mechanism; the transfer platform comprises a track built on the ground, a mounting plate movably mounted on the track and a driving part used for driving the mounting plate to move, a plurality of telescopic plates are fixed to the mounting plate in the circumferential direction of the mounting plate, and the telescopic plates stretch out and draw back in the horizontal plane in the direction close to or away from the mounting plate. The telescopic plate is provided with a limiting piece used for being connected with a component or limiting the component and a positioning piece used for being positioned with the first hoisting mechanism or the second hoisting mechanism. By the adoption of the scheme, the problem that the component cannot be directly hoisted into the hoisting range of the tower crane due to the limitation of a construction site can be solved.

Description

Technical Field

[0001] The present invention belongs to the field of transportation and hoisting, and particularly 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 fixation of arch ribs and suspended box girders. Usually, an ultra-high tower is required to provide a necessary buckling and hoisting platform. As Figure 8 shown, the ultra-high tower 22 is usually built on the shore and behind the foundation of the arch bridge. When constructing the foundation of the arch bridge, a large foundation pit 20 will be dug, resulting in a narrow space in front of the ultra-high tower 22. Affected by the shape of the foundation pit 20, the space on the side of the ultra-high tower 22 will also be affected.

[0003] During the erection process of the ultra-high tower 22, the turnover and transportation of column members are often required, and then the members are hoisted to the appropriate height and position for erection by the tower crane 23. Since the space in front of and on the side of the ultra-high tower 22 is limited, and the component assembly area (assembled with materials such as steel pipes and columns) requires a large space and may need to use a crane or gantry crane 21 for assembly, the component assembly area is generally far from the hoisting range of the tower crane 23.

[0004] In addition, due to the heavy weight, long section length, and large size of the components, when constructing safely, the components need to be as close as possible to the tower crane 23 in order to be safely hoisted by the tower crane 23. During actual construction, generally, the components are transported to within a range of no more than 25 m from the tower crane 23 to complete the safe hoisting. However, due to the space limitations in front of and on the side of the ultra-high tower 22, conventional gantry cranes 21 and cranes cannot transport the components to the appropriate position. As Figure 8 shown is the limit transportation position of the gantry crane 21, and for the tower crane 23 on the left as Figure 8 shown, if it is to be transported to the hoisting range of this tower crane 23, it will inevitably pass through the narrow space in front of the ultra-high tower 22. Therefore, how to improve the hoisting and transportation efficiency has become an issue to be considered in construction. Moreover, the component size is large, especially the height of the component reaches 12 m, and it is extremely easy to overturn during the transportation process, with a high safety risk. Then, the safety of transportation is also an issue to be considered. Summary of the Invention

[0005] Aiming at 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 the embodiments of the present invention, the following technical solutions are adopted: Tower construction hoisting system, including a transfer platform, a first hoisting mechanism and a second hoisting mechanism. The first hoisting mechanism is used to hoist components onto the transfer platform. The transfer platform is used to transfer the components to the second hoisting mechanism. 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 installed on the track, and a driving member for driving the movement of the mounting plate. Along the circumferential direction of the mounting plate, a number of telescopic plates are fixed. The telescopic plates can telescopically move in the horizontal plane in a direction close to or away from the mounting plate. On the telescopic plates, there are installed limit members for connecting or limiting the components and positioning members for positioning with the first hoisting mechanism or the second hoisting mechanism.

[0007] Compared with the prior art, the present invention has the following beneficial effects: In this solution, the components can be placed at a position at a suitable distance from the installation area of the ultra-high tower. Then, through the transfer on the ground by setting up the transfer platform, the components are transferred to the second hoisting mechanism, reducing the risk of high-altitude operation during long-distance transportation.

[0008] Through the design of the telescopic plates, they can be telescoped according to the size of the components, so that the limit members can be applicable to components of different sizes. Through the setting of the positioning members, the positioning members can be positioned with the first hoisting mechanism or the second hoisting mechanism to achieve positioning during the hoisting process, facilitating the alignment of the components with the first hoisting mechanism and the second hoisting mechanism before and after transfer to improve the hoisting and transfer efficiency. Moreover, the positioning members are also installed on the telescopic plates, and the positions of the positioning members can be adjusted to avoid hindering the positioning of the positioning members after the components are placed on the mounting plate.

[0009] Furthermore, it also includes lifting ropes for tying on the components and lifting rings installed on the lifting ropes. There are multiple groups of lifting ropes and they correspond one by one to the limit members.

[0010] Furthermore, the first hoisting mechanism includes a first hanging plate and a first hook installed on the first hanging plate. The second hoisting mechanism includes a second hanging plate and a second hook installed on the second hanging plate. The first hook and the second hook are both used for hoisting the lifting rings.

[0011] Furthermore, the limit member includes a limit rod fixed on the telescopic plate. The limit rod is a telescopic rod that can telescopically move vertically. At the top of the limit rod, there is installed a clamping claw for clamping the lifting ring.

[0012] Furthermore, the clamping claw includes a mounting seat rotatably connected to the top of the limit rod and a clamping member installed on the mounting seat.

[0013] Furthermore, the clamping claw includes a mounting seat slidably connected to the top of the limit rod and a clamping member installed on the mounting seat.

[0014] Furthermore, the positioning member includes a distance sensor installed on the clamping member.

[0015] Furthermore, a groove is formed in the mounting plate, a vision detector is installed in the groove, and a transparent plate for covering the vision detector is detachably connected to the groove.

[0016] Furthermore, the driving member includes a winch installed near the second hoisting mechanism on the track, a steering pulley rotatably connected near the first hoisting mechanism on the track, and a steel wire. The middle of the steel wire is wound around the winch. One end of the steel wire is fixed to the mounting plate, and the other end of the steel wire passes through the steering pulley and is also fixed to the mounting plate.

[0017] According to an embodiment of the present invention, the following technical solution is also adopted: A tower crane construction hoisting method, using a tower crane construction hoisting system, includes the following steps: S1. Hoist a component through the first hoisting mechanism, hoist the component above the mounting plate, and lower the component onto the mounting plate; S2. Position the connection between the first hoisting mechanism and the component through the positioning member, limit and connect the component through the limiting member, and release the connection between the component and the first hoisting mechanism; S3. Drive the mounting plate to slide through the driving member, and the mounting plate drives the component to move near the second hoisting mechanism; S4. The second hoisting mechanism locates the position of the component through the positioning member, connects the component to the second hoisting mechanism, and hoists the component to a specified height through the second hoisting mechanism. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the state where the first hoisting mechanism lowers the component onto the mounting plate in the embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the state where the positioning member completes positioning with the first hoisting mechanism in the embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the state where the limiting member limits the component in the embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the state where the component is transported to the second hoisting mechanism and the positioning member completes positioning with the second hoisting mechanism in the embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the state where the second hoisting mechanism hoists the component from the mounting plate in the embodiment of the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the driving member in the embodiment of the present invention.

[0024] Figure 7 is Figure 1Enlarged view of part A

[0025] Figure 8 This is a top view of the erection of an ultra-high tower in the background art of the present invention

[0026] In the figure: 1, mounting plate; 2, member; 3, telescopic plate; 4, limiting rod; 5, mounting seat; 6, clamping member; 7, drive shaft; 8, distance sensor; 9, first hanging plate; 10, first hook; 11, lifting rope; 12, sling; 13, track; 14, second hanging plate; 15, second hook; 16, turning pulley; 17, steel strand; 18, transparent plate; 19, groove; 20, foundation pit; 21, gantry crane; 22, tower; 23, tower crane; 24, transfer area Specific embodiments

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings of the specification, and specific embodiments are given As Figure 1 shown, the tower construction hoisting system includes a transfer platform, a first hoisting mechanism, a second hoisting mechanism, and a lifting rope 11 for tying to the member 2. During the actual construction process, referring to Figure 8 , the tower construction hoisting system of this solution 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 erected on land, and the transfer platform is erected within the transfer area 24

[0028] The first hoisting mechanism is used to hoist the member 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. During the actual design process, the first hoisting mechanism can select devices such as a gantry crane 21 or a crane in the prior art 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 prior art (such as bolt connection), and the first hanging plate 9 is lifted by the lifting of the gantry crane 21. Of course, the first hanging plate 9 can also be lifted by other means. Referring to Figure 8 , the gantry crane 21 is installed on the ground with a certain installation space on the side of the tower 22 by a conventional method in the prior art. The member 2 is hoisted from the assembly area to the transfer platform by the gantry crane 21, and the member 2 can be placed on the transfer platform

[0029] The second hoisting mechanism is used to hoist the component 2 to the designated position. The second hoisting mechanism includes a second lifting plate 14 and a second hook 15 installed on the second lifting plate 14. In the actual design process, a tower crane 23 device in the prior art can be selected to realize the lifting of the second lifting plate 14. For example, the second lifting plate 14 can be connected to the hoisting mechanism of the tower crane 23 in a conventional manner in the prior art (such as bolt connection), and the second lifting plate 14 is driven to lift by the hoisting of the tower crane 23. Of course, the second lifting plate 14 can also be lifted by other means. Refer to Figure 8 , the tower crane 23 is arranged on the ground on both sides of the erection area of the tower 22 and is used to hoist the component 2 to erect the tower 22.

[0030] A lifting ring 12 is installed on the lifting rope 11. Both the first hook 10 and the second hook 15 are used to hoist the lifting ring 12. During actual assembly, by binding the lifting rope 11 to the component 2 and then connecting it to the first hoisting mechanism or the second hoisting mechanism through the lifting ring 12, the hoisting of the component 2 can be realized.

[0031] 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 installed on the track 13, and a driving member for driving the movement of the mounting plate 1. Specifically, a trench is dug on the ground between the first hoisting mechanism and the second hoisting mechanism, and fixed steel channels are buried in the trench. The steel channels are used as the track 13. According to the size of the mounting plate 1, multiple tracks 13 made of steel channels can be set. A slider is fixed on the mounting plate 1. The slider can be selected as an I-beam, and the slider is slidably connected in the track 13. In order to facilitate the sliding of the slider relative to the track 13, a tetrafluoroethylene plate can be attached to the inner wall of the steel channel to reduce the movement friction.

[0032] Combined with Figure 6 As shown, the driving member includes a winch installed near the second hoisting mechanism on the track 13, a steering pulley 16 rotatably connected near the first hoisting mechanism on the track 13, and a steel wire rope 17. The middle of the steel wire rope 17 is wound on the winch. Specifically, the steel wire rope 17 is wound on the driving shaft 7 of the winch. When the driving shaft 7 of the winch rotates, one end of the steel wire rope 17 is wound up and the other end is released. One end of the steel wire rope 17 is fixed on the mounting plate 1, and the other end of the steel wire rope 17 is also fixed on the mounting plate 1 after passing through the steering pulley 16. By changing the rotation direction of the driving shaft 7 of the winch, the mounting plate 1 can be pulled by the steel wire rope 17 to move towards the first hoisting mechanism or the second hoisting mechanism. And by connecting the steel wire rope 17 at both ends of the mounting plate 1, the sliding stability of the mounting plate 1 can also be improved. Of course, in the actual design process, any other driving device in the prior art that can drive the mounting plate 1 to slide on the track 13 can also be selected as the driving member, and even the mounting plate 1 can be manually pulled to slide, not limited to the above embodiments.

[0033] A plurality of telescopic plates 3 are fixedly arranged on the installation plate 1 along its circumferential direction. The telescopic plates 3 can telescopically move in the horizontal plane in a direction close to or away from the installation plate 1. The telescopic plates 3 are selected as electric telescopic plates or telescopic plates that can achieve the telescopic function in other existing technologies. During actual use, the component 2 is mainly supported by the installation plate 1. The upper surface of the telescopic plate 3 can be slightly lower than the upper surface of the installation plate 1, so as to reduce the load-bearing of the telescopic plate 3 and improve the service life of the telescopic plate 3. A limiting member for connecting with the component 2 or limiting the component 2 and a positioning member for positioning with the first hoisting mechanism or the second hoisting mechanism are installed on the telescopic plate 3.

[0034] The limiting member includes a limiting rod 4 fixed on the telescopic plate 3. The limiting rod 4 is a telescopic rod that can telescopically move in the vertical direction. The telescopic rod is selected as an electric telescopic rod or a rod body that can achieve the telescopic function in other existing technologies. Through the movement of the telescopic plate 3, components 2 of different sizes can be placed on the installation plate 1. Through the arrangement of the limiting rod 4, the circumferential direction of the component 2 is limited by the limiting rod 4, so as to prevent the component 2 from falling off the installation plate 1 during the movement along with the installation plate 1.

[0035] There are multiple groups of suspension ropes 11 and they correspond to the limiting members one by one. Then there are also multiple suspension rings 12. Then the number of the first hooks 10 and the second hooks 15 can correspond to the suspension rings 12 one by one, or all the suspension rings 12 can be hung on one first hook 10 or the second hook 15, which can be designed according to actual requirements. In this embodiment, Figure 1 Only two groups of limiting members and suspension ropes 11 located on the left and right sides of the component 2 are shown. During actual design, limiting members and suspension ropes 11 can also be designed on the front and rear sides of the component 2 according to actual requirements. A clamping jaw for clamping the suspension ring 12 is installed at the top of the limiting rod 4. Through the vertical telescopic movement of the limiting rod 4, the limiting rod 4 can adapt to components 2 of different heights, so that the clamping jaw can clamp the suspension ring 12. In this embodiment, two design methods of the clamping jaw are given and can be selected according to actual requirements. Specifically as follows: A. As shown by the mounting seat 5 on the left side in Figure 1 , the clamping jaw includes a mounting seat 5 rotatably connected to the top of the limiting rod 4 and a clamping member 6 installed 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 in a state above the installation plate 1 (as shown in Figure 2 ) and a state of rotating away from above the installation plate 1 (as shown in Figure 1 ) ). When the clamping member 6 deviates from above the installation plate 1, it will not hinder the vertical movement of the component 2. Therefore, the component 2 can be hoisted onto the installation plate 1 by the first hoisting mechanism or the component 2 can be lifted off the installation plate 1 by the second hoisting mechanism. In this solution, the mounting seat 5 can be rotated by a motor, or the mounting seat 5 can be rotated by a rotation driving device in other existing technologies.

[0036] B. As shown by the mounting base 5 on the right side in Figure 1 , the clamping jaw includes a mounting base 5 slidably connected to the top of the limiting rod 4 and a clamping member 6 mounted on the mounting base 5. The mounting base 5 slides in the left-right direction. By sliding the mounting base 5, the clamping member 6 can be in a state above the mounting plate 1 (see Figure 2 shown) and a state of sliding away from above the mounting plate 1 (see Figure 1 shown). The difference from the design method A is only the different movement mode of the mounting base 5. In this solution, the mounting base 5 can be driven to slide by a cylinder, or can be driven to slide by a linear driving device in other existing technologies.

[0037] The clamping member 6 can select conventional structures such as clamping jaws and mechanical claws in the prior art, as long as it can clamp the sling ring 12. In the actual design process, a pressure sensor can be installed on the clamping surface of the clamping member 6, which can detect the pressure of clamping the sling ring 12 and detect whether the sling 11 is tightened through the sling ring 12, so as to avoid excessive clamping force on the sling ring 12 or excessive tension of the sling 11.

[0038] The positioning member includes a distance sensor 8 mounted on the clamping member 6. The distance sensor 8 can select a laser rangefinder or other ranging instruments based on other principles in the prior art. After the first hoisting mechanism hoists the component 2 onto the mounting plate 1 and the first hook 10 has not yet disengaged from the sling ring 12, as in the state shown in Figure 1 . At this time, extend the limiting rod 4 so that the position height of the mounting base 5 is higher than the height of the top of the component 2, and then move the mounting base 5 so that the clamping member 6 is located below the first hanging plate 9. Detect the distance between the clamping member 6 and the first hanging plate 9 through the distance sensor 8. If the clamping member 6 fails to be located below the first hanging plate 9, the distance sensor 8 cannot detect data or the detected data is significantly incorrect. At this time, the mounting base 5 needs to be moved continuously. In addition, by detecting the distance between the clamping member 6 and the first hanging plate 9, the height of the limiting rod 4 can be adjusted continuously so that the position of the clamping member 6 is closer to the first hook 10 to facilitate clamping the sling ring 12, as shown in the state shown in Figure 2 . During the actual use process, at this time, the sling ring 12 can be manually removed from the first hook 10 and placed at the clamping member 6. At this time, neither the gantry crane 21 nor the tower crane 23 is in the hoisting process, and the component 2 is also stably placed on the mounting plate 1, greatly reducing the safety risk of manual intervention. Of course, the position of the first hook 10 can also be detected by devices such as vision sensors in the prior art and the position of the clamping member 6 can be adjusted step by step according to the detection signal, thereby realizing semi-automation or full automation.

[0039] After the clamping members 6 clamp the corresponding lifting rings 12, move the mounting base 5 to make the clamping members 6 deviate from above the member 2, and then retract the limiting rod 4 to gradually tighten the lifting rope 11, thus forming a state where the lifting rope 11 is connected between the member 2 and the limiting rod 4, similar to tying the member 2 to the mounting plate 1, reducing the sway of the member 2 during transportation, and also avoiding the sway risk of the lifting rope 11 during transportation. During actual use, by adjusting the position of the telescopic plate 3, it is sufficient that the limiting rod 4 is located circumferentially around the member 2 to play a certain limiting role, rather than necessarily being stuck on the side wall of the member 2. See Figure 3 the state shown.

[0040] Correspondingly, when it is necessary to transfer the member 2 from the mounting plate 1 to the second hoisting mechanism, first extend the limiting rod 4 and move the mounting base 5 to make the clamping member 6 clamp the lifting ring 12 above the member 2, and then detect the distance between it and the second lifting plate 14 through the distance sensor 8, so that the second lifting plate 14 can be located above the clamping member 6. See Figure 4 the state shown. At this time, the lifting ring 12 can be transferred to the second hook 15, which can be manually transferred or, as described above, the position of the second hook 15 can be detected by devices such as visual sensors in the prior art, and the position of the clamping member 6 can be gradually adjusted according to the detection signal, thus realizing semi-automation or full automation.

[0041] Through the design of this solution, when the member 2 is transferred from the first hoisting mechanism to the mounting plate 1 or from the mounting plate 1 to the second hoisting mechanism, only the position of the lifting ring 12 needs to be moved. Even for manual operation, the transfer and hoisting efficiency is greatly improved, and since the transfer platform is set on the ground, the risk of working at height is also reduced. And by pulling the lifting rope 11 with the limiting rod 4 to limit the member 2, no complex assembly is required and the operation is convenient. Of course, during actual use, to ensure the stability of the transfer, a certain number of bolts can also be connected between the member 2 and the mounting plate 1.

[0042] Furthermore, as shown in Figure 7 In order to prevent the member 2 from colliding with the limiting rod 4 or interfering when being hoisted from the first hoisting mechanism to the mounting plate 1, a groove 19 is provided on the mounting plate 1, and a visual detector is installed in the groove 19. For example, the visual detector can select optical elements (such as cameras) in the prior art. By photographing above the mounting plate 1, when the member 2 is hoisted above the mounting plate 1, the position of the member 2 and the positions of multiple limiting rods 4 and clamping members 6 can be detected by photographing with the visual detector, and then adjusted by the telescopic movement of the telescopic plate 3 and the mounting base 5. To prevent the member 2 from squeezing the visual detector, a transparent plate 18 for covering the visual detector is detachably connected to the groove 19. Specifically, the transparent plate 18 is adhesively or bolted to the mounting plate 1, and the transparent plate 18 plays a certain protective role for the visual detector.

[0043] The tower crane construction hoisting method, using the tower crane construction hoisting system in the above embodiment, includes the following steps: S1. Hoist the component 2 through the first hoisting mechanism, hoist the component 2 above the mounting plate 1. First, use the vision detector to photograph and detect the position of the component 2 and the positions of multiple limit rods 4 and clamping members 6, and then extend the telescopic plate 3 to adjust the position of the mounting seat 5 so that neither the limit rod 4 nor the clamping member 6 is located below the component 2. Lower the component 2 to the mounting plate 1 through the first hoisting mechanism, as shown in Figure 1 the shown state.

[0044] S2. Position the connection between the first hoisting mechanism and the component 2 through the positioning member, limit and connect the component 2 through the limiting member, and release the connection between the first hoisting mechanism and the lifting ring 12. Specifically, extend the limit rod 4 so that the height of the mounting seat 5 is higher than the top of the component 2, and then move the mounting seat 5 so that the clamping member 6 is located below the first lifting plate 9. Use the distance sensor 8 to detect whether the clamping member 6 is located below the first lifting plate 9 and detect the distance between the clamping member 6 and the first lifting plate 9, so that the position of the clamping member 6 is closer to the first hook 10, as shown in Figure 2 the shown state. Then remove the lifting ring 12 from the first hook 10 and place it at the clamping member 6.

[0045] When the clamping members 6 all clamp the corresponding lifting rings 12, move the mounting seat 5 so that the clamping members 6 deviate from above the component 2, and then contract the limit rod 4 to gradually tighten the lifting rope 11, then a state of connecting the lifting rope 11 between the component 2 and the limit rod 4 is formed, as shown in Figure 3 the shown state.

[0046] S3. Drive the mounting plate 1 to slide through the driving member, and the mounting plate 1 drives the component 2 to move near the second hoisting mechanism. Specifically, through the rotation of the winch, the steel strand 17 pulls the mounting plate 1 to slide on the track 13, and pulls the mounting plate 1 near the second hoisting mechanism.

[0047] 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 use the distance sensor 8 to detect the distance between it and the second lifting plate 14 so that the second lifting plate 14 can be located above the clamping member 6, as shown in Figure 4 the shown state. At this time, the lifting ring 12 can be transferred to the second hook 15. Then move the mounting seat 5 so that the clamping member 6 no longer hinders the vertical hoisting of the component 2, as shown in Figure 5 the shown state, and then the component 2 can be hoisted through the second hoisting mechanism.

[0048] It should be noted that in this text, relational terms such as first and second are only used 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 "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. Tower crane construction hoisting system, characterized in that: It includes a transfer platform, a first hoisting mechanism, and a second hoisting mechanism. The first hoisting mechanism is used to hoist components onto the transfer platform. The transfer platform is used to transfer the components to the second hoisting mechanism. The second hoisting mechanism is used to hoist the components to a designated position; The transfer platform includes a track built on the ground, a mounting plate movably installed on the track, and a driving member for driving the movement of the mounting plate. A number of telescopic plates are fixed along the circumference of the mounting plate. The telescopic plates can expand and contract in the horizontal plane in a direction close to or away from the mounting plate. A limiting member for connecting or limiting the components and a positioning member for positioning with the first hoisting mechanism or the second hoisting mechanism are installed on the telescopic plates.

2. The tower crane erection and hoisting system according to claim 1, characterized in that: It also includes a lifting rope for tying to the components and a lifting ring installed on the lifting rope. There are multiple groups of lifting ropes and they correspond one by one to the limiting members.

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

4. The tower crane construction hoisting system according to claim 2, wherein: The limiting member includes a limiting rod fixed on the telescopic plate. The limiting rod is a telescopic rod that can expand and contract vertically. A clamping claw for clamping the lifting ring is installed at the top of the limiting rod.

5. The tower crane erection and hoisting system according to claim 4, wherein: 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.

6. The tower crane erection and hoisting system according to claim 4, characterized in that: 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.

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

8. The tower crane erection and hoisting system according to claim 1, wherein: A groove is opened on the mounting plate. A vision detector is installed in the groove. A transparent plate for covering the vision detector is detachably connected to the groove.

9. The tower crane erection and hoisting system according to claim 1, wherein: The driving member includes a winch installed near the second hoisting mechanism on the track, a steering pulley rotatably connected near the first hoisting mechanism on the track, and a steel wire strand. The middle of the steel wire strand is wound on the winch. One end of the steel wire strand is fixed on the mounting plate, and the other end of the steel wire strand is also fixed on the mounting plate after passing through the steering pulley.

10. Tower construction hoisting method, characterized in that: Using the tower construction hoisting system according to any one of claims 1-9, it includes the following steps: S1. Hoist the components through the first hoisting mechanism, hoist the components above the mounting plate, and lower the components onto the mounting plate; S2. Position the connection between the first hoisting mechanism and the components through the positioning member, limit and connect the components through the limiting member, and release the connection between the components and the first hoisting mechanism; S3. Drive the mounting plate to slide through the driving member, and the mounting plate drives the components to move near the second hoisting mechanism; S4. The second hoisting mechanism locates the position of the components through the positioning member, connects the components to the second hoisting mechanism, and hoists the components to a designated height through the second hoisting mechanism.

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