CN-116553336-B - Multifunctional lifting platform system of wind power tower and application method thereof

CN116553336BCN 116553336 BCN116553336 BCN 116553336BCN-116553336-B

Abstract

The invention discloses a multifunctional lifting platform system of a wind power tower and a use method thereof, wherein the multifunctional lifting platform system comprises a multifunctional lifting platform, a lifting device, a distance measuring device and a control system, the multifunctional lifting platform is arranged in the tower, the lifting device is arranged in a cabin at the top of the tower, the multifunctional lifting platform is driven by the lifting device to move up and down in the tower, the multifunctional lifting platform can radially stretch and retract along the tower under the control of the control system so as to adapt to the inner diameters of the tower at different heights, the distance measuring device is arranged on the multifunctional lifting platform and is in communication connection with the control system, the inner diameters of the tower at the current height position are obtained by measuring the distance measuring device and the inner diameters of the tower by the control system, and the stretching amount of the multifunctional lifting platform is calculated according to the inner diameters of the tower so as to adapt to the inner diameters of the tower at different heights. The invention can effectively solve the problems of difficult maintenance of the tower, high cost, high maintenance failure risk by adopting the traditional lifter, and the like.

Inventors

MENG HUILIANG
WANG LINAN
LIU XIAOFENG
XU XIANGDONG

Assignees

华能扎兰屯新能源有限公司
明阳智慧能源集团股份公司

Dates

Publication Date: 20260508
Application Date: 20230531

Claims (9)

1. The multifunctional lifting platform system of the wind power tower is characterized by comprising a multifunctional lifting platform, a lifting device, a distance measuring device and a control system; the multifunctional lifting platform is arranged inside the tower, the multifunctional lifting platform comprises a center frame, a fixed panel, a telescopic frame, telescopic power sources, mounting brackets, telescopic panels, movable panels and guardrails, wherein the fixed panel is arranged on the center frame, the telescopic frames are four and are respectively arranged around the center frame, each telescopic frame is respectively connected with a plurality of telescopic power sources, each telescopic power source is supported on the center frame through the mounting brackets, the telescopic frames are driven by the telescopic power sources to radially extend along the tower, one telescopic panel is arranged on each telescopic frame, each telescopic panel can synchronously extend along with the corresponding telescopic frame, the size of each telescopic panel is determined by the arrangement of the inner diameter of the tower and the telescopic frames, a circle of guardrails are arranged on the outer side of each telescopic panel, the guardrails are connected with the telescopic frames and can move along with the telescopic frames, a plurality of hanging points are arranged on the guardrails and are used for fixing safety ropes, a plurality of hanging areas are formed between the telescopic panels and the inner wall of the tower, the hanging areas continuously change along with the rising and falling of the multifunctional lifting platform, the two shielding areas are respectively large and the hanging areas are reserved for the size of the hanging areas of the cable, and the hanging areas are large in the size of the hanging areas are reserved for workers; the lifting device is arranged in the engine room at the top of the tower, the bottom of the lifting device is connected with the multifunctional lifting platform, the multifunctional lifting platform is driven by the lifting device to move up and down in the tower, the distance measuring device is arranged on the multifunctional lifting platform and is in communication connection with the control system, the distance between the distance measuring device and the inner wall of the tower is measured, the inner diameter of the tower at the current height position is obtained by the control system according to the measured distance, and the expansion and contraction amount of the multifunctional lifting platform is calculated according to the inner diameter of the tower, so that the multifunctional lifting platform is suitable for the inner diameters of the towers at different heights.
2. A multifunctional lifting platform system for a wind power tower according to claim 1, wherein the telescopic frame comprises a plurality of telescopic girders and a plurality of secondary girders, the telescopic girders are respectively connected with the central frame, each telescopic girder comprises an outer telescopic girder and an inner telescopic girder, the inner telescopic girders are embedded in the outer telescopic girders, the outer telescopic girders are connected with the central frame, the inner telescopic girders are connected with a telescopic power source, the inner telescopic girders are driven by the telescopic power source to move in the outer telescopic girders in a telescopic manner, the secondary girders are vertically connected with the telescopic girders and can move along with the telescopic girders, and a plurality of sink bolt holes are respectively processed on the outer telescopic girders, the inner telescopic girders and the secondary girders and are used for being connected with a telescopic panel.
3. The multifunctional lifting platform system of the wind power tower according to claim 1, wherein the central frame is a main stressed supporting component of the mobile platform and comprises a plurality of steel plates and a plurality of steel beams, the steel plates are connected to form a rectangular box-shaped structure with an open top, the steel beams arranged in a criss-cross mode are connected to the open top of the rectangular box-shaped structure, a vertical ladder which is convenient for personnel to enter the central frame is arranged inside the rectangular box-shaped structure, the top of the vertical ladder is welded or bolted with the steel beams, and the bottom of the vertical ladder is welded and connected with the steel plates.
4. The multifunctional lifting platform system for the wind power tower according to claim 3, wherein the top of the central frame is connected with a platform guide rod, and the platform guide rod is connected with a ladder rail on the inner wall of the tower and used for guiding the multifunctional lifting platform to move up and down.
5. A multifunctional lifting platform system for a wind power tower according to claim 3, wherein the central frame is provided with a plurality of lifting points for being connected with a lifting device, and the number of the lifting points is set according to load conditions.
6. The multifunctional lifting platform system of the wind power tower according to claim 1, wherein the fixed panel is provided with a flip plate for entering the center frame, and the flip plate is arranged above the vertical ladder in the center frame.
7. The multifunctional lifting platform system for the wind power tower according to claim 1, wherein the telescopic panel comprises an inner telescopic panel and an outer telescopic panel, the inner telescopic panel is embedded in the outer telescopic panel, and a plurality of through holes are respectively formed in the inner telescopic panel and the outer telescopic panel and are used for being connected with the telescopic frame.
8. A method of using a wind power tower multifunctional lifting platform system according to any of claims 1 to 7, comprising lifting control and lowering control; the specific steps of the ascending control are as follows: S1.1, ensuring that personnel and objects are positioned on a fixed panel area of the multifunctional lifting platform, enabling the multifunctional lifting platform to shrink and restore to a minimum state by a control system, checking the safety condition of the multifunctional lifting platform, and controlling a lifting device to drive the multifunctional lifting platform to ascend by the control system after confirming the safety; S1.2, when the crane rises to a preset height, measuring the distance between the crane and the inner wall of the tower by using a distance measuring device, obtaining the inner diameter of the tower at the current height position according to the measured distance by using a control system, and calculating the expansion and contraction amount of the multifunctional lifting platform according to the inner diameter of the tower; s1.3, controlling the stretching deformation of the multifunctional lifting platform by a control device according to the stretching amount so as to adapt to the inner diameters of towers at different heights; The specific steps of the descent control are as follows: s2.1, ensuring that personnel and objects are positioned on a fixed panel area of the multifunctional lifting platform, enabling the multifunctional lifting platform to shrink and restore to a minimum state by a control system, checking the safety condition of the multifunctional lifting platform, and controlling a lifting device to drive the multifunctional lifting platform to descend by the control system after confirming the safety; s2.2, when the tower falls to a preset height, measuring the distance between the tower and the inner wall of the tower by adopting a distance measuring device, obtaining the inner diameter of the tower at the current height position according to the measured distance by a control system, and calculating the expansion and contraction amount of the multifunctional lifting platform according to the inner diameter of the tower; S2.3, controlling the stretching deformation of the multifunctional lifting platform by the control device according to the stretching amount so as to adapt to the inner diameters of towers at different heights.
9. The method for using the multifunctional lifting platform system of the wind power tower according to claim 8, wherein after the multifunctional lifting platform is stretched and deformed, a person goes to a telescopic panel area of the multifunctional lifting platform to perform operation; When personnel need to operate nearby the suspended area of the multifunctional lifting platform, the suspended area is covered by the movable cover plate of the multifunctional lifting platform, and after the operation is finished, the movable cover plate is moved away so as not to influence the extension and retraction of the multifunctional lifting platform.

Description

Multifunctional lifting platform system of wind power tower and application method thereof Technical Field The invention relates to the technical field of wind power towers, in particular to a multifunctional lifting platform system of a wind power tower and a use method thereof. Background In recent years, the wind power industry develops rapidly, large units and high towers become the development direction of the wind power industry in the recognized future, and steel-concrete towers become the most important solution for solving the high towers and the ultrahigh towers in the wind power industry, have been accepted by the market and have developed rapidly. The concrete tower in the steel-concrete tower is divided into a plurality of tower sections, the diameter of the bottom concrete tower is large, the diameter of the top concrete tower is small, and the whole concrete tower is in a truncated cone shape. The horizontal gaps between the concrete tower sections are filled with seat slurry, the tower sections are composed of a plurality of duct pieces, vertical gaps between the duct pieces are connected through the seat slurry or bolts, and the whole concrete tower is connected through external prestress steel strands. When the unit is overhauled, personnel can reach the fan cabin through a ladder stand, a lifter or a climbing-free device, a concrete tower section is not provided with overhauling platforms, and a plurality of overhauling platforms are arranged on a steel tower section and are used for overhauling flange connecting bolts and the like. At present, the following problems mainly exist during overhaul: 1) Because the concrete tower section is not provided with an overhaul platform, the vertical seams, the horizontal seams, the steel strands and the concrete cylinder wall between the ring sections cannot be overhauled; 2) With the increase of the tower height, the traditional elevator scheme can increase vibration when the steel wire rope of the elevator is lifted, so that the winding probability of the steel wire rope and other components is increased; 3) And each flange position of the steel tower section is provided with an overhaul platform, so that the cost is high. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a multifunctional lifting platform system for a wind power tower, which can effectively solve the problems of difficult maintenance of the tower, high cost, high maintenance failure risk by adopting a traditional lifter and the like. The invention further aims to provide a using method of the multifunctional lifting platform system of the wind power tower. The aim of the invention is achieved by the following technical scheme: The multifunctional lifting platform system for the wind power tower is characterized by comprising a multifunctional lifting platform, a lifting device, a distance measuring device and a control system, wherein the multifunctional lifting platform is arranged inside the tower, the lifting device is arranged in a cabin at the top of the tower, the bottom of the multifunctional lifting platform is connected with the multifunctional lifting platform, the multifunctional lifting platform is driven by the lifting device to move up and down in the tower, the multifunctional lifting platform can radially stretch out and draw back along the tower under the control of the control system so as to adapt to the inner diameters of the towers at different heights, the distance measuring device is arranged on the multifunctional lifting platform and is in communication connection with the control system, the inner diameters of the towers at the current height positions are obtained by the control system according to the measured distance, and the stretching quantity of the multifunctional lifting platform is calculated according to the inner diameters of the towers, so that the multifunctional lifting platform is suitable for the inner diameters of the towers at different heights. Further, multi-functional lift platform includes central frame, fixed panel, telescopic frame, flexible power supply, installing support, telescopic panel, activity panel and guardrail, fixed panel installs on central frame, telescopic frame has four, install respectively around central frame, every telescopic frame is connected with a plurality of flexible power supply respectively, every telescopic power supply supports on central frame through the installing support, radially flexible along the pylon by telescopic power supply drive telescopic frame, install a telescopic panel on every telescopic frame, every telescopic panel can follow the synchronous flexible of corresponding telescopic frame, telescopic panel size is determined by the arrangement of pylon internal diameter and telescopic frame, the outside of every telescopic panel sets up round guardrail, guardrail and telescopic frame connect, can stretch out and draw back along with teles