Wind power concrete tower hoisting device, hoisting construction platform and hoisting method thereof

Abstract

The application discloses a wind power concrete tower hoisting device, a hoisting construction platform and a hoisting method thereof, and belongs to the technical field of wind power tower hoisting. The wind power concrete tower hoisting device comprises a hoisting unit, the hoisting unit comprises a vehicle body and a hoisting module, the vehicle body is used for conveying the hoisting module, a steel wire rope end portion on the hoisting module is provided with a connecting unit, and the connecting unit is used for connecting the concrete tower and a hoisting platform component. The fixing portion can be used for mounting the hoisting platform component on the top of the concrete tower, and the mounting is convenient, fast and stable. Then, the position of the concrete tower in hoisting can be guided through the guiding unit, so that the quick butt joint work of two concrete towers can be realized, and the labor intensity of workers is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of wind turbine tower hoisting technology, specifically to wind turbine concrete tower hoisting device, hoisting construction platform and hoisting method. Background Technology

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. A wind turbine consists of a rotor and a generator; the rotor comprises blades, a hub, and reinforcing components; it generates electricity through the rotation of the blades under wind power and the rotation of the generator head. A wind power source consists of the wind turbine, the tower supporting the generator, a battery charging controller, an inverter, a load unloader, a grid connection controller, and a battery bank. The tower primarily serves a supporting role in the wind turbine and also absorbs vibrations. Precast concrete wind turbine towers are typically frustum-shaped cylindrical structures with equal taper; the angle between the tower wall and the central axis is approximately 2.5°. The concrete tower is composed of several sections, with an overall height reaching approximately 160m, and radial variations at the top and bottom exceeding 4m.

[0003] To facilitate the installation of precast concrete towers and subsequent maintenance of generator sets, a platform is typically installed on top of the precast concrete tower for workers to rest and work. During installation, workers need to stand on the platform and use tools to move the hoisted precast concrete tower so that the upper tower is inserted into the studs pre-installed on the lower tower. Due to the large size and weight of the precast concrete tower, moving the upper tower requires significant manpower and resources, resulting in low construction efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a wind turbine concrete tower hoisting device, a hoisting construction platform, and a hoisting method thereof to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wind turbine concrete tower hoisting device includes a hoisting unit, which comprises a vehicle body and a hoisting module. The vehicle body is used to transport the hoisting module. A connecting unit is provided at the end of the wire rope on the hoisting module, and the connecting unit is used to connect the concrete tower and a hoisting platform component. The hoisting platform component includes a worktable. Multiple bearing portions are provided on the lower surface of the worktable. A fixing portion is provided on the lower part of the worktable. A guiding unit is provided on the upper part of the worktable for guiding the position of the hoisted concrete tower. The fixing portion includes multiple bearing plates, each with a plug-in seat on its lower surface. The plug-in seat corresponds to a lifting ring on the concrete tower. A driving component is provided on the worktable for simultaneously driving the bearing plates and the plug-in seats to move.

[0007] Preferably, the driving component includes an annular driving disk, the lower surface of which is provided with a spiral rack, and each of the bearing plates is provided with a movable seat. The lower surface of the worktable is provided with multiple through grooves corresponding to the movable seats, and the top of the movable seats is provided with tooth grooves corresponding to the spiral rack. A motor is provided on one side of the worktable, the output shaft of which extends into the interior of the worktable and is provided with a bevel gear. A bevel gear is meshed with one side of the bevel gear and is connected to the annular driving disk.

[0008] Preferably, the support portion includes a base, the upper surface of which is provided with two guide posts, and a support seat is sleeved on the two guide posts. The support seat is connected to the worktable, and an elastic element is provided between the base and the support seat.

[0009] Preferably, the guiding unit includes an installation ring and an execution unit for driving the installation ring to rotate. The upper surface of the installation ring is provided with multiple guiding units, which are used to position and fix the hoisted concrete tower.

[0010] Preferably, the guiding unit includes a fixing block, on which a guiding arm is rotatably connected via a rotating shaft. A ball head is provided at the top of one side of the guiding arm, and a connecting seat is sleeved on the ball head. A clamping plate is provided on one side of the connecting seat, and a cylinder is provided on the other side of the guiding arm. The ends of the cylinders are each connected to a connecting block via a rotating shaft. The two connecting blocks are rotatably connected to the guiding arm and the mounting ring, respectively.

[0011] Preferably, the connecting unit includes a lifting plate with multiple through slots. The inner walls of each through slot are rotatably connected to a lifting arm via a pivot. Each lifting arm has a C-shaped hook at its end for connecting to a lifting ring on the concrete tower. One end of each C-shaped hook is rotatably connected to an L-shaped stop via a pivot, and the other end of each C-shaped hook has a limiting protrusion for restricting the rotation of the L-shaped stop.

[0012] Preferably, the outer circumferential surface of the hoisting platform is rotatably connected to a guide wheel via a rotating shaft. A cable is provided on the guide wheel, one end of the cable is connected to the hoisting platform component, and the other end of the cable is provided with a winding machine, which is mounted on the hoisting platform component.

[0013] A wind turbine concrete tower hoisting construction platform includes a wind turbine concrete tower hoisting device.

[0014] A hoisting method for a wind turbine concrete tower hoisting construction platform, comprising the following specific steps:

[0015] The lifting module is transported to the designated location by the vehicle body, and then the connecting unit is connected to the lifting ring on the concrete tower to be lifted;

[0016] The hoisting module is activated to lift the concrete tower and hoisting platform components. Under the action of the hoisting module, the height and position of the hoisting platform components are adjusted so that the hoisting platform components are fixed to the top of the concrete tower below.

[0017] The guide unit on the hoisting platform guides and rotates the concrete tower during hoisting, aligning the upper and lower concrete towers. The hoisting module releases the upper concrete tower until the two concrete towers are connected, and the workers then connect the two concrete towers.

[0018] Release the hoisting platform components from the concrete tower, and then, under the action of the connecting unit, move the concrete tower upward until the hoisting platform components are fixed to the top of the upper concrete tower. Then, proceed with the installation of the next concrete tower.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] When hoisting concrete towers, this invention allows for the convenient, quick, and stable installation of the hoisting platform on top of the tower via a fixing unit. The guiding unit then guides the position of the tower during hoisting, enabling rapid docking of two towers and effectively reducing the workload of workers. Furthermore, the driving mechanism simultaneously moves multiple bearing plates and connectors, allowing the connectors to be moved to suitable positions as needed. This allows the hoisting platform to be fixed onto concrete towers of different sizes, making it widely applicable. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the hoisting platform component of the present invention;

[0022] Figure 2 This is an exploded view of the structure of the fixing part of the hoisting platform component of the present invention;

[0023] Figure 3 for Figure 2 Structural bottom view;

[0024] Figure 4 This is a schematic diagram of the structure of the hoisting platform component guide unit of the present invention;

[0025] Figure 5 for Figure 4 Structural bottom view;

[0026] Figure 6 This is a schematic diagram of the hoisting device of the present invention;

[0027] Figure 7 This is a partial structural schematic diagram of the hoisting device of the present invention;

[0028] Figure 8 for Figure 7 Enlarged view of the structure at point A in the middle;

[0029] Figure 9 This is a schematic diagram of the structure of the hoisting device connection unit of the present invention.

[0030] In the picture:

[0031] 100. Bearing component; 101. Base; 102. Guide column; 103. Bearing seat; 104. Elastic element;

[0032] 200. Workbench;

[0033] 300. Fixed part; 301. Bearing plate; 302. Insertion socket; 303. Moving seat; 304. Through groove; 305. Annular drive disc; 306. Vortex rack; 307. Tooth groove; 308. Motor 1; 309. Bevel gear 1; 310. Bevel gear 2;

[0034] 400. Guide unit; 401. Mounting ring; 402. Motor II; 403. Gear; 404. Gear ring; 405. Fixing block; 406. Guide arm; 407. Ball head; 408. Connecting seat; 409. Clamping plate; 410. Cylinder; 411. Connecting block;

[0035] 500. Lifting unit; 501. Vehicle body; 502. Lifting module; 503. Wire rope; 504. Connecting unit; 505. Concrete tower; 5041. Lifting plate; 5042. Through slot; 5043. Lifting arm; 5044. C-shaped hook; 5045. L-shaped stop; 5046. Restriction protrusion; 5047. Lifting ring; 5048. Guide wheel; 5049. Cable; 50410. Winding machine. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figure 1 - Figure 9 The present invention provides the following technical solution:

[0038] like Figure 1 and Figure 6As shown, the wind turbine concrete tower hoisting device includes a hoisting unit 500. The hoisting unit 500 can select either a truck-mounted tower crane or a tower crane depending on the environment and the size of the concrete tower 505. In this embodiment, the hoisting unit 500 selects a truck-mounted tower crane, including a vehicle body 501 and a hoisting module 502. The vehicle body 501 is used to transport the hoisting module 502. The hoisting module 502 includes hoisting, luffing, slewing, and traveling mechanisms, as well as a tower body, boom, base, and anchor rods. The tower body is the main structure of the crane. The boom is installed on the upper part of the tower body. The base is used to fix the crane. The anchor rods are used to increase the stability of the crane. The hoisting mechanism is used to lift and lower heavy objects. The luffing mechanism is used to change the angle of the boom. The slewing mechanism allows the crane to rotate 360 ​​degrees. The traveling mechanism allows the crane to... Moving horizontally, the wire rope 503 on the hoisting module 502 is equipped with a connecting unit 504 at its end. The connecting unit 504 is used to connect the concrete tower 505 and the hoisting platform component. The hoisting platform component includes a work platform 200 with a through hole in the middle. During hoisting, the concrete tower 505 is inserted into the through hole on the work platform 200. The lower surface of the work platform 200 is provided with multiple bearing parts 100. The bearing parts 100 are used to buffer and absorb energy when the hoisting platform component is landed and retrieved. The lower part of the work platform 200 is provided with a fixing part 300. The hoisting platform component is fixedly connected to the concrete tower 505 after the hoisting work has been completed through the fixing part 300. The upper part of the work platform 200 is provided with a guiding unit 400 for guiding the position of the hoisted concrete tower 505.

[0039] like Figure 2 and Figure 3 As shown, the fixing part 300 includes multiple bearing plates 301, and each bearing plate 301 has a plug-in seat 302 on its lower surface. The plug-in seat 302 corresponds to the lifting ring 5047 on the concrete tower 505. The workbench 200 is equipped with a driving component for simultaneously driving the bearing plates 301 and the plug-in seats 302 to move. The driving component simultaneously drives multiple bearing plates 301 and plug-in seats 302 to move, and can move the plug-in seat 302 to a suitable position as needed. This allows the lifting platform component to be fixed on concrete towers 505 of different sizes, making it widely applicable.

[0040] Furthermore, the driving component includes an annular drive disk 305, the lower surface of which is provided with a spiral rack 306. Movable seats 303 are provided on each of the support plates 301. Multiple through grooves 304 corresponding to the movable seats 303 are formed on the lower surface of the worktable 200. The top of the movable seats 303 is provided with toothed grooves 307 corresponding to the spiral rack 306. A motor 308 is provided on one side of the worktable 200. The output shaft of the motor 308 extends into the worktable 200 and is provided with a bevel gear 309. A bevel gear 310 meshes with one side of the bevel gear 309. Gear 2 310 is connected to the annular drive disk 305. When the position of the plug-in seat 302 needs to be adjusted, the motor 1 308 is controlled to work. Under the transmission of bevel gear 1 309 and bevel gear 2 310, the annular drive disk 305 drives the volute rack 306 to start rotating. With the cooperation of the tooth groove 307 on the top of the moving seat 303, the moving seat 303 drives the bearing plate 301 and the plug-in seat 302 to move until the plug-in seat 302 is moved to the position corresponding to the lifting ring 5047 on the concrete tower 505. Then, by controlling the lifting platform component to move down, the plug-in seat 302 is inserted into the lifting ring 5047.

[0041] like Figure 3 As shown, the support part 100 includes a base 101. Two guide posts 102 are provided on the upper surface of the base 101. A support seat 103 is sleeved on the two guide posts 102. The support seat 103 is connected to the worktable 200. An elastic element 104 is provided between the base 101 and the support seat 103. In this embodiment, the elastic element 104 is a spring.

[0042] like Figure 4 and Figure 5As shown, the guiding unit 400 includes a mounting ring 401 and an execution unit that drives the mounting ring 401 to rotate. Multiple guiding units are provided on the upper surface of the mounting ring 401. These guiding units are used to position and fix the hoisted concrete tower 505. Specifically, when guiding the hoisted concrete tower 505, as it slowly descends, the inclined surfaces of the guiding units cause the position of the concrete tower 505 to shift until the central axis of the hoisted concrete tower 505 coincides with the central axis of the hoisted concrete tower 505. Then, the hoisting... The concrete tower 505 continues to descend until the two concrete towers 505 are connected. Workers use bolts and other connectors to install and fix the two concrete towers 505. During this process, workers can choose to stand on the hoisting platform or the platform at the top inside the concrete tower 505 as needed. Workers on the platform at the top inside the concrete tower 505 can climb to the platform of the next concrete tower 505 through the ladder reserved inside. Workers on the hoisting platform can rise together with the hoisting platform in the subsequent process.

[0043] The execution unit includes a second motor 402, which is located inside the workbench 200. The output shaft of the second motor 402 is equipped with a gear 403, and a gear ring 404 is meshed with one side of the gear 403. The gear ring 404 is connected to the mounting ring 401. By controlling the operation of the execution unit, the mounting ring 401 can drive multiple guide units to start rotating, thereby rotating the concrete tower 505 during hoisting and enabling the accurate docking of the two concrete towers 505.

[0044] Furthermore, the guiding unit includes a fixing block 405, on which a guide arm 406 is rotatably connected via a pivot. A ball head 407 is located at the top of one side of the guide arm 406, and a connecting seat 408 is fitted onto the ball head 407. A clamping plate 409 is located on one side of the connecting seat 408. A cylinder 410 is located on the other side of the guide arm 406, and each end of the cylinder 410 is connected to a connecting block 411 via a pivot. The two connecting blocks 411 are rotatably connected to the guide arm 406 and the mounting ring 401, respectively, during hoisting. During the guiding process of the concrete tower 505, the cylinder 410 opens multiple guide arms 406. Then, according to the size of the concrete tower 505, the guide arms 406 are controlled to start rotating until the clamping plate 409 is in contact with the surface of the concrete tower 505. With the cooperation of the ball head 407 and the connecting seat 408, the clamping plate 409 can be in contact with the outer circumference of the concrete tower 505 as much as possible. As the cylinder 410 continues to work, the central axes of the upper and lower concrete towers 505 gradually coincide.

[0045] like Figure 7 and Figure 8As shown, the connecting unit 504 includes a lifting plate 5041. The lifting plate 5041 has multiple through slots 5042. The inner walls of each through slot 5042 are rotatably connected to a lifting arm 5043 via a pivot. Each end of the lifting arm 5043 is equipped with a C-shaped hook 5044, which is used to connect to a lifting ring 5047 on the concrete tower 505. One end of the C-shaped hook 5044 is rotatably connected to an L-shaped stop 5045 via a pivot, and the other end of the C-shaped hook 5044 is provided with a limiting protrusion 5046 to restrict the rotation of the L-shaped stop 5045. When connecting to the concrete tower 505 to be lifted... The C-shaped hook 5044 is hung on the lifting ring 5047 on the concrete tower 505. Then, the wire rope 503 is wound up and the lifting mechanism is controlled to make the concrete tower 505 start to move upward. During this process, it can be used in conjunction with a small truck tower crane to lift the other end of the concrete tower 505, avoiding damage caused by friction between the concrete tower 505 and the ground. The L-shaped stop 5045 makes it easy for workers to disassemble the C-shaped hook 5044 on the lifted concrete tower 505, which is convenient and quick. The lifting arm 5043 is made of wire rope to avoid breakage during the lifting process.

[0046] like Figure 9 As shown, a guide wheel 5048 is rotatably connected to the outer circumference of the lifting platform 5041 via a rotating shaft. A cable 5049 is mounted on the guide wheel 5048. One end of the cable 5049 is connected to the lifting platform component, and the other end of the cable 5049 is equipped with a winding machine 50410. The winding machine 50410 is mounted on the lifting platform component. During the lifting process, the lifting platform component is moved up and down by controlling the operation of the winding machine 50410, thereby achieving the lifting platform component and the lifting completed. The fixing of the concrete tower 505 is carried out as follows: after hoisting is completed, the winding machine 50410 is controlled to move the hoisting platform component upward. After the connection between the hoisting platform component and the concrete tower 505 above is completed, the winding machine 50410 is controlled to move the hoisting plate 5041 and the hoisting arm 5043 downward to hoist the next concrete tower 505. The hoisting platform component can also be moved down to the ground together with the hoisting plate 5041 to hoist the concrete tower 505 as needed.

[0047] A wind turbine concrete tower hoisting construction platform includes a wind turbine concrete tower hoisting device.

[0048] A hoisting method for a wind turbine concrete tower hoisting construction platform, comprising the following specific steps:

[0049] The lifting module 502 is transported to the designated position via the vehicle body 501, and then the connecting unit 504 is connected to the lifting ring 5047 on the concrete tower 505 to be lifted.

[0050] The hoisting module 502 is activated to lift the concrete tower 505 and the hoisting platform component. Under the action of the hoisting module 502, the height and position of the hoisting platform component are adjusted so that the hoisting platform component is fixed to the top of the concrete tower 505 below.

[0051] The guide unit 400 on the hoisting platform guides and rotates the concrete tower 505 during hoisting, aligning the upper and lower concrete towers 505. The hoisting module 502 releases the upper concrete tower 505 until the two concrete towers 505 are connected. The workers then connect the two concrete towers 505.

[0052] Release the hoisting platform component from the concrete tower 505, and then move the concrete tower 505 upward under the action of the connecting unit 504 until the hoisting platform component is fixed to the top of the upper concrete tower 505, and then carry out the installation work of the next concrete tower 505.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hoisting device for a wind turbine concrete tower, comprising a hoisting unit, characterized in that, The hoisting unit includes a vehicle body and a hoisting module. The vehicle body is used to transport the hoisting module. The wire rope on the hoisting module is provided with a connecting unit at its end. The connecting unit is used to connect the concrete tower and the hoisting platform component. The hoisting platform component includes a workbench, the lower surface of which is provided with multiple bearing parts, the lower part of which is provided with a fixing part, and the upper part of which is provided with a guiding unit for guiding the position of the hoisted concrete tower. The fixing part includes multiple bearing plates, and each bearing plate has a plug-in seat on its lower surface. The plug-in seat corresponds to the lifting ring on the concrete tower. The workbench is equipped with a driving component for simultaneously driving the bearing plates and plug-in seats to move. The driving component includes an annular driving disk, the lower surface of which is provided with a spiral rack, and each of the bearing plates is provided with a movable seat. The lower surface of the worktable is provided with multiple through grooves corresponding to the movable seats, and the top of the movable seats is provided with tooth grooves corresponding to the spiral rack. A motor is provided on one side of the worktable, the output shaft of which extends into the interior of the worktable and is provided with a bevel gear. A bevel gear is meshed with one side of the bevel gear and is connected to the annular driving disk. The guiding unit includes an installation ring and an execution unit that drives the installation ring to rotate. The upper surface of the installation ring is provided with multiple guiding units, which are used to position and fix the hoisted concrete tower. The guiding unit includes a fixed block, on which a guiding arm is rotatably connected via a rotating shaft. A ball head is provided on the top of one side of the guiding arm, and a connecting seat is fitted onto the ball head. A clamping plate is provided on one side of the connecting seat, and a cylinder is provided on the other side of the guiding arm. The ends of the cylinders are each connected to a connecting block via a rotating shaft. The two connecting blocks are rotatably connected to the guiding arm and the mounting ring, respectively.

2. The wind turbine concrete tower hoisting device according to claim 1, characterized in that, The supporting part includes a base, and two guide columns are provided on the upper surface of the base. A supporting seat is sleeved on the two guide columns. The supporting seat is connected to the worktable. An elastic element is provided between the base and the supporting seat.

3. The wind turbine concrete tower hoisting device according to claim 1, characterized in that, The connecting unit includes a lifting plate with multiple through slots. The inner walls of each through slot are rotatably connected to a lifting arm via a pivot. Each end of the lifting arm is provided with a C-shaped hook for connecting to a lifting ring on the concrete tower. One end of the C-shaped hook is rotatably connected to an L-shaped stop via a pivot, and the other end of the C-shaped hook is provided with a limiting protrusion for restricting the rotation of the L-shaped stop.

4. The wind turbine concrete tower hoisting device according to claim 3, characterized in that, The outer circumference of the hoisting platform is rotatably connected to a guide wheel via a rotating shaft. A cable is mounted on the guide wheel. One end of the cable is connected to the hoisting platform component, and the other end of the cable is equipped with a winding machine, which is mounted on the hoisting platform component.

5. A construction platform for hoisting a wind turbine concrete tower, characterized in that, Includes the wind power concrete tower hoisting device as described in any one of claims 1-4.

6. A hoisting method based on the wind power concrete tower hoisting construction platform described in claim 5, characterized in that, The specific steps include: The lifting module is transported to the designated location by the vehicle body, and then the connecting unit is connected to the lifting ring on the concrete tower to be lifted; The hoisting module is activated to lift the concrete tower and hoisting platform components. Under the action of the hoisting module, the height and position of the hoisting platform components are adjusted so that the hoisting platform components are fixed to the top of the concrete tower below. The guide unit on the hoisting platform guides and rotates the concrete tower during hoisting, aligning the upper and lower concrete towers. The hoisting module releases the upper concrete tower until the two concrete towers are connected, and the workers then connect the two concrete towers. Release the hoisting platform components from the concrete tower, and then, under the action of the connecting unit, move the concrete tower upward until the hoisting platform components are fixed to the top of the upper concrete tower. Then, proceed with the installation of the next concrete tower.

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