1987results about "Wind motor assembly" patented technology

The invention discloses an old wind power plant fan foundation small-to-large capacity increasing structure and a transformation construction method. The old wind power plant fan foundation small-to-large capacity increasing structure comprises an original fan foundation, a newly-poured reinforced concrete foundation, a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The connecting structure of the bottom section of the new fan tower drum and the new fan foundation comprises a vertical anchor bolt cage connecting system and a radial anchor bolt connecting system. The vertical anchor bolt cage connecting system is fixed in the original fan foundation, and the radial anchor bolt connecting system is fixed in the newly-poured reinforced concrete foundation. According to the new fan foundation, the diameter of the middle pier is expanded so as to arrange a new tower tube, the height of the middle pier is not changed, the height of the middle pier of the newly-poured foundation almost does not need to be increased, and the using amount of concrete is greatly reduced. Meanwhile, according to the structure, an original vertical anchor bolt cage connecting system is reserved, a radial anchor bolt connecting system is adopted for enhancing connection between the bottom section of the fresh air fan tower barrel and the fan foundation, the transformation cost and the connection reliability are effectively controlled, and the maximization of reutilization of the original fan foundation and the controllability of the cost of the fresh air fan foundation are achieved.

It is described a vibration damping device (110) for damping, in particular edgewise, vibrations of a wind turbine blade (101) during idling, stand-still, transport or servicing comprising: a removable spoiler (120) removably connectable to the rotor blade (101), in particular rotor blade surface (104), providing aerodynamic resistance, in particular adding drag, in a direction (102) substantially parallel to the average chordwise direction (103) of the rotor blade.

The invention relates to the technical field of wind power generation, and particularly discloses a duct double-turbine supercharged windmill which comprises a duct and a blade type rotating structure arranged in the duct. The duct sequentially comprises a first contraction section, a first straight section, a second contraction section and a second straight section in the air flow direction, and the diameter of the first straight section is larger than that of the second straight section. The blade type rotating structure comprises a rotating shaft, a first-stage turbine and a second-stage turbine, the first-stage turbine and the second-stage turbine are arranged on the rotating shaft, the first-stage turbine and the second-stage turbine are correspondingly arranged on the first straight section and the second straight section respectively, and the rotating shaft is connected with the generator through a transmission structure. Structural improvement is carried out through the blade type rotating structure and the duct, the turbofan located at the front end drives the turbofan located at the rear end to rotate, and therefore the wind energy utilization rate is increased.

The invention relates to the technical field of path planning, and discloses a mountain wind power equipment transportation path planning and hoisting control method and system. The method comprises the following steps: scanning a mountain road through a laser ranging array to obtain a road cross section database, and modeling to obtain blade scanning envelope data; performing dynamic path planning by adopting a terrain adaptability predictive control algorithm, and obtaining a safe transportation path according to stress constraint verification; the sensor array monitors the blade state in real time and corrects the track; a temperature sensor collects tower drum temperature data, and the size change is predicted through a thermal deformation compensation mechanism; and the positioning system obtains hoisting reference coordinates and controls the hoisting posture in combination with the compensation parameters. The technical problems that dynamic sweeping modeling, stress constraint verification and real-time track correction are lacked in wind power equipment transportation path planning in the mountain environment, and thermal deformation compensation and multi-system collaborative optimization are lacked in hoisting control are solved. And the transportation safety and the hoisting control precision of the mountain wind power equipment are improved.

The invention relates to a motion compensation type pile gripper perpendicularity adjustment control method which comprises the following steps: 1, mounting a tilt angle sensor and a displacement sensor on a pile gripper for detecting the tilt angle theta of a pile body and the position of a supporting arm in real time; step 2, acquiring a current inclination angle value theta c and a target value theta t through a control system, calculating a real-time perpendicularity deviation delta theta = theta c-theta t, and driving a servo mechanism to adjust the position of a supporting arm according to the perpendicularity deviation delta theta so as to perform motion compensation; and step 3, dynamically correcting the compensation process by using a closed-loop control algorithm until the condition that verticality adjustment is completed is met, namely delta theta is less than or equal to epsilon, and epsilon is an allowable error threshold. A high-precision inclination angle sensor and a displacement sensor are installed on the pile gripper, the inclination angle of a pile body and the position deviation of a supporting arm are detected in real time, and a control signal is dynamically generated through a closed-loop control algorithm to drive a servo mechanism to conduct adjustment. A dynamic parameter compensation mechanism is designed, control parameters are corrected in real time according to the inclination angle of the foundation and external force interference, the adjusting precision and stability under the conditions of complex terrains and dynamic external force are remarkably improved, a servo mechanism achieves precise action through a hydraulic driving system and a proportional control valve, the response time of the servo mechanism meets the engineering requirement, and the engineering cost is reduced. And the perpendicularity error of the pile body can be controlled within a preset range, the construction efficiency and the long-term stability are improved, and the problem that a traditional manual adjustment and mechanical auxiliary system is insufficient in precision is solved.

The invention discloses a fan blade transportation and installation system and method and a flight device, and belongs to the technical field of intelligent transportation of fan blades. The system comprises a flight transportation module, an intelligent navigation control module, an installation auxiliary module and a scheduling module; the flight transportation module is used for suspending and loading the fan blades, and suspending, flying and transporting the fan blades according to a preset flight route; the intelligent navigation control module is used for monitoring a flight path, collecting flight data and environment data in a flight process, predicting potential obstacles according to the flight data and the environment data, and optimizing a flight strategy; the mounting auxiliary module is used for aligning and fastening the blades and the fan hub; the scheduling module is used for determining a flight plan according to the meteorological data, the performance of the flight transportation module and the priority of the transportation installation task. By combining a plurality of transportation, installation and dispatching modules, efficient and safe transportation and installation of the fan blades are achieved, and the transportation and installation difficulty and cost are reduced.

In an installation of a wind turbine on a floating foundation in floating condition and subject to sea-state induced motions, e.g. at the site of an offshore windfarm, use is made of a vessel with a crane arranged on the hull and provided with a hoisting system adapted to support the weight of the wind turbine and suspend the wind turbine from the crane. A heave compensation device compensates for sea-state induced heave motion of the wind turbine mast relative to the mast mounting structure of the floating foundation. Use is made of a mast alignment system configured to engage on the suspended wind turbine, e.g. on the mast of the suspended wind turbine, and to bring and maintain the mast of the wind turbine in alignment with the mounting axis of the floating foundation in order to compensate for sea-state induced motions, at least including tilt motions in one or more vertical planes, of the wind turbine mast relative to the mounting axis of the floating foundation.

An installation method for an offshore wind turbine, comprising: providing a docking device (100), and movably fixing the docking device to a floating foundation (200), the docking device comprising an annular body (10) and a docking cavity penetrating therethrough; connecting a compensation device (300) to a hoisting appliance (400), the hoisting appliance being connected to a hoisted object by means of the compensation device; using the hoisting appliance to hoist a support tower (500), and inserting the support tower into the docking cavity and connecting same to the floating foundation (200); moving the docking device to the end of the support tower away from the floating foundation in the axial direction of the support tower and movably fixing same to the outer wall of the support tower; and using the compensation device to hoist a power generation assembly, the power generation assembly comprising a rotor, a nacelle (700) and a connection tower (800) connected to the nacelle, and inserting the connection tower into the docking cavity and connecting same to the support tower. The method improves the capability of installing offshore wind turbines and reduces installation costs.

The utility model relates to the technical field of wind power test field installation, and discloses a wind power test field-based tower drum installation switching device, which comprises a switching mechanism, the switching mechanism comprises a switching drum body, a first connecting flange is fixedly welded at an opening at the upper end of the switching drum body, and a second connecting flange is fixedly welded at an opening at the lower end of the switching drum body. According to the tower drum installation switching device, the switching drum body of the tower drum installation switching device is designed to be of an integrated structure and comprises the whole drum body, the interior and the exterior of the whole switching drum body are kept flat, the sealing performance is good, meanwhile, the inner reinforcing mechanism attached to the inner wall of the switching drum body is arranged on the inner side of the switching drum body, and the structure reinforcing effect of the switching drum body is achieved; the structure of the adapter barrel is reliable, long-time reliable use of the adapter barrel is further guaranteed, regular repair welding or additional welding maintenance is not needed, and the adapter barrel is convenient to use.

The invention discloses a modular splicing type wind power tower drum, and relates to the technical field of wind power engines, the modular splicing type wind power tower drum comprises a first tower drum and an automatic splicing assembly, a first flange is arranged on the outer wall of the top of the first tower drum, the automatic splicing assembly is fixed on the outer wall of a second tower drum, and a rotating sleeve is fixed at the end part of a blade. According to the modular splicing type wind power tower drum, oil flows in the annular channel to push the gear ring to be meshed with the nut gear to rotate, so that the nut body is in threaded connection along the surface of the fastening bolt in the descending process, and after the fastening bolt completely descends, the oil stops flowing to form resistance on the two sides of the blades; the nut body cannot rotate at will through the bearing, it is guaranteed that the first tower drum and the second tower drum are firmly spliced through the fastening bolts, fastening of all the fastening bolts can be achieved at a time, workers do not need to work high above the ground, assembly time is greatly shortened, and therefore the assembly efficiency of the tower drums is improved.

A method for constructing a wind turbine concrete floater including a central connector from which radial arms extend, the central connector carrying a central stability tower, and each arm carrying an outer stability tower. The method includes prefabricating the arms, central connector and at least parts of the stability towers, pre-assembling the central connector with one arm to form a primary pre-assembly, mounting temporary flotation devices onto the arms to provide additional buoyancy to them, floating the primary preassembly and floating the other arms of the floater, and assembling offshore said primary preassembly with said other arms.

The invention discloses a connector of a wind power concrete tower drum, a tower drum section and a tower drum construction method, the connector comprises a tower drum inner bottom flange and a lower turnup pipe drum, the lower turnup pipe drum is coaxially welded and fixed on the inner wall of the tower drum inner bottom flange to obtain a ring groove, and the ring groove is filled with ultra-high performance concrete. According to the tower tube sections, the connectors are arranged at the upper end and the lower end of a common concrete pipe, and prestressed tendons penetrate through ultra-high performance concrete of the connectors and the common concrete pipe and are locked through prestressed anchorage devices. The construction method comprises the following steps: 1, prefabricating the inner bottom flange and the lower flanging pipe barrel of the tower barrel in a factory; 2, coaxially welding the inner bottom flange of the tower barrel and the lower flanging pipe barrel; 3, a connector is manufactured, and a common concrete pipe is manufactured; 4, hoisting in place in sequence on site; and 5, the prestressed steel bars penetrate through the tower drum sections and are locked through the prestressed anchorage devices. The method has the technical effects that the bearing capacity of concrete tower drum connection is enhanced, the anti-fatigue performance of the concrete tower drum joint and the overall stability of the tower drum are improved, and the construction cost is low.

The present application relates to the field of wind power generation technology, and discloses a ducted double turbocharged windmill, which comprises a duct and a blade type rotating structure arranged in the duct. The duct comprises a first contraction section, a first straight section, a second contraction section and a second straight section in sequence along the wind direction, and the diameter of the first straight section is greater than that of the second straight section. The blade type rotating structure comprises a rotating shaft, a primary turbine and a secondary turbine arranged on the rotating shaft, the primary turbine and the secondary turbine are arranged in the first straight section and the second straight section respectively, and the rotating shaft is connected with a generator through a transmission structure. The present application improves the structure of the blade type rotating structure and the duct, and realizes that the turbine fan at the front end drives the turbine fan at the rear end to rotate, so as to improve the wind energy utilization rate.

The invention relates to the technical field of wind power mixed tower construction, in particular to a wind power mixed tower drum prefabricated duct piece on-site assembling and hoisting construction method which comprises the following steps: S1, preparation work: working face transfer, operation personnel, construction machinery, materials, tools and instruments, site leveling and foundation treatment; s2, assembling the mixed tower: assembling an assembling platform, mounting joint bars, assembling ring pieces, grouting a grouting seam, maintaining the grouting seam and mounting inner accessories; s3, hoisting the mixed tower: mounting a hoisting tool, working before hoisting a first section, trial hoisting of the first section, grouting a foundation, measuring a reference center, hoisting pipe joints of M02 and above, trial falling of pipe pieces, seating of the pipe pieces, scraping and seam beautifying, grounding connection, mounting a crawling ladder system, lifting a temporary platform, passing through a ball, mounting a steel conversion section, centering a tower drum, mounting a permanent platform, and performing special acceptance inspection and transfer; and tensioning and grouting the pre-stressed anchor cable. By the adoption of the method, the duct pieces can be conveniently transported and rapidly assembled, and the manufacturing cost and the use and maintenance cost are low.

The utility model discloses a blade for wind power generation, and belongs to the technical field of wind power. The blade comprises a first blade section and a second blade section which are independent of each other, a first section is arranged at the tail end of the first blade section, a second section is arranged at the head end of the second blade section, and the first section and the second section are connected in an assembled mode through a mechanical connecting assembly and an inclined glue joint layer. The mechanical connecting assembly comprises a plurality of single connecting structures which are distributed on the upper side, the lower side and the front edge area of the blade section. An included angle of 30 degrees is formed between the fracture surface and the axis of the blade; the distance between the setting position of the section and the root of the blade is 30-35% of the length of the whole blade; local reinforcing skins are laid on the transition area of the blade root and the easily-damaged area at the position 1 / 3 away from the blade tip. According to the utility model, a mixed connection mode can be adopted, the advantages of the two connection modes can be integrated, and the connection strength is ensured while the weight of the segmented blades is reduced.

The utility model discloses an assembly type transition section and a wind power generation tower, the wind power generation tower comprises the assembly type transition section, and the assembly type transition section comprises a main cylinder body, lattice type corner columns and connecting components. The main cylinder body is a cylindrical steel cylinder. The multiple lattice type corner columns are evenly arranged around the central axis of the main cylinder body in the circumferential direction at intervals. The height of the connecting components is smaller than that of the main cylinder body, and each lattice type corner column is connected with the side wall of the main cylinder body through one connecting component. The height of the cross section of the connecting component is gradually reduced from the main cylinder body to the lattice type corner column, and the gradually-reduced structure is convenient to connect with the lattice type corner column. The device has the characteristics of reasonable structural design, high stability, prefabricated construction and simplicity and convenience in installation and operation.

The invention relates to the technical field of wind power generation, and particularly discloses a train-mounted ducted airflow coupling wind energy recovery power generation system and method. The train-mounted ducted airflow coupling wind energy recovery power generation system comprises N ducted windmills which are sequentially connected through connecting assemblies; the supporting assemblies are in one-to-one correspondence with the ducted windmills; the supporting assembly is used for supporting the ducted windmill and can achieve rotation and turning of the ducted windmill. The energy storage devices are in one-to-one correspondence with the ducted windmills, and the energy storage devices are connected with generators in the ducted windmills through cables; the connecting assembly comprises a first fixing part, a connecting section and a second fixing part; the first fixing part is connected with the outlet end of the ducted windmill, the second fixing part is connected with the inlet end of the ducted windmill, and the two ends of the connecting section are detachably connected with the first fixing part and the second fixing part respectively. The multiple ducted windmills are connected in series and installed on the train, the ducted windmills can rapidly turn around based on different driving directions, and the ducted windmills can be used for train power generation.

A windmill construction (10), comprising a rotor-nacelle assembly (12) with blades (14), a tower (16), a substructure (20) and a foundation (22). The substructure (20) comprises a first guide collar (24) and a second guide collar (26) for support of the tower (16), said first guide collar (24) being located in a lower part of the substructure (20) and said second guide collar (26) being located in an upper part of the substructure (20). The substructure (20) comprises a jack-up assembly (30) for receipt of modular tower segments (18), said tower segments (18) are arranged to be assembled in the substructure (20) and erectable by the jack-up assembly (30) to produce an assembled tower (16). The invention is also directed to a method for assembly of a windmill construction.

The utility model discloses a wind power tower hoisting auxiliary positioning device, which belongs to the technical field of wind power towers and comprises a wind power tower body, an auxiliary positioning component is arranged at one end of the wind power tower body, and a plurality of fixing rings are welded on the inner wall of the other end of the wind power tower body in an annular array manner. The auxiliary positioning assembly comprises a fixed clamping lantern ring cover clamped to the peripheral side of one end of the wind power tower barrel body. The upper end fastening component is arranged on the peripheral side of the fixed clamping lantern ring cover, the lower end fastening assembly is arranged in the fixed clamping lantern ring cover, extends to the other end of the wind power tower drum body along an inner cavity of the wind power tower drum body and is in fastening connection with the fixed ring, and a lifting hook retracting and releasing assembly is arranged in the fixed clamping lantern ring cover. A clamping and clamping cavity used for clamping and containing the top end of the wind power tower barrel body is formed in the fixed clamping lantern ring cover. According to the utility model, the safety of the hoisting operation is improved by improving the aspects of multi-point fixing, synchronous supporting and accurate positioning in the hoisting process of the wind power tower drum.

A wind turbine arrangement, that includes: a wind turbine blade; an inflatable platform positioned in the wind turbine blade; and an inflatable outer pressure ring surrounding the platform, wherein the outer pressure ring, when inflated with a gaseous fluid, fixes the platform in the wind turbine blade by generating a normal friction force between the platform and the wind turbine blade. In a first wind turbine arrangement, after the platform has been inflated with a gaseous fluid, the inflated platform includes a material that contains the gaseous fluid and is continuously distributed throughout the area defined by a circular or oval shape of the platform. In a second wind turbine arrangement, the platform comprises a fibrous material disposed in the platform. In a third wind turbine arrangement, a tarpaulin edge is positioned above the platform and positioned interior to the outer pressure ring.

The utility model provides an interlayer type corrugated plate floating body power generation device which comprises a fan and a floating body, the floating body is a cylinder, the interior of the floating body is hollow, the inner wall and the outer wall of the floating body are made of corrugated plates, filling materials are poured between the inner wall and the outer wall, and sealing plates are arranged at the two ends of the floating body. The top end of the floating body is connected with the fan; wherein the number of the floating bodies is three or more, and the floating bodies are fixedly connected through connecting pieces; and the floating body is connected with the fan through the connecting piece. Three or more floating bodies are adopted to form a buoyancy structure, sea wave impact can be better reduced, and stability is improved. In addition, the draught fan is connected to the top end of the floating body and is higher than the water surface, and seawater corrosion can be reduced.

Systems and methods are provided for assembling and installing multiple wind turbines from a single vessel. In general, different embodiments use wind turbine components on the vessel including blades, a nacelle assembly with a rotating hub, and a tower. A Turbine Installation Gantry System (TIGS) embodiment uses a gantry system with a truss substructure and at least one bridge crane on an elevated vessel for assembling the wind turbine blades on the vessel to a nacelle hub supported on the seabed. A Skidding Turbine Installation Crane (STIC) embodiment has a rotatable crane mounted on a skidding pedestal or cantilever structure, providing full access to the vessel deck and blades, and for bringing the assembled nacelle assembly outboard to assemble each blade. A Turbine Assembly Positioning System (TAPS) embodiment includes both a handling system and a crane mounted on a skidding cantilever structure for securing the blades to the assembled tower section and nacelle hub that are cantilevered outboard of the vessel by the handling system. The combination embodiment uses selected components and systems from the TIGS, STIC and TAPS embodiments to provide component and system redundancy and concurrent operation.

The invention relates to a system (2, 102) for assembling a generator (3, 103), preferably a permanently excited generator (3, 103) of a wind turbine, comprising a rotor (16, 116) and a stator (10, 110). According to the invention a vertical assembly device (4, 104) being connectable to the rotor (16, 116) and the stator (10, 110) is proposed, for guiding the rotor (16, 116) in parallel and coaxially aligned to the stator (10, 110) during assembly, the vertical assembly device (4, 104) comprising a first assembly element (26, 126) being connectable to the rotor (16, 116), a second assembly element (6, 106) being connectable to the stator (10, 110), and guiding means (28, 128) for guiding the first assembly element (26, 126) coaxially aligned to the second assembly element (6, 106).

The invention relates to the technical field of fan hoisting, and discloses a vision-enhanced low-visibility fan auxiliary hoisting system and method, and the system comprises an environment acquisition module, an intelligent processing and decision module and a hoisting installation module. The method comprises the following steps: acquiring image data of a working site, and transmitting the image data to the intelligent processing and decision module through wireless communication; constructing a hoisting equipment fault prediction model, carrying out early warning on abnormal conditions of the image data, and identifying sudden weather changes affecting hoisting operation through meteorological data analysis; according to a prediction result of the hoisting equipment fault prediction model, a hoisting scheme is adjusted, and an emergency plan is formulated; and carrying out real-time monitoring by using an unmanned aerial vehicle, comparing real-time monitored image data with a prediction result, and adjusting the hoisting equipment fault prediction model based on a comparison result. Through a data comparison and feedback mechanism, the hoisting equipment fault prediction model is continuously optimized, and the prediction precision and reliability are improved.

A fusing type disengaging device of a wind power blade turbulent flow element is characterized in that a half rope ring, close to one side of a hub, of a rope is arranged in a rope winding ring groove in the outer wall of an end cover of a sleeve in a sleeving mode, a fusing assembly in the end cover is provided with a power supply device and a plurality of conducting strips, and conduction can be avoided through the elastic force of a torsional spring in a locking state; the pawl disc can rotate relative to the ratchet wheel disc to the separation position where the pawl and the ratchet are mutually blocked, at the moment, due to the fact that the conducting strips stay to the mutual contact position after rotating, the conducting parts at the two ends of the power supply device can be mutually conducted to form a heating loop, and heat of the heating loop can be transmitted to the rope winding ring groove to burn out the positioning rope. Therefore, the positioning rope can be separated from the end cover, the turbulent flow element can be reliably and efficiently separated from the wind power blade, an operator only needs to pull the traction rope at will, and the workload in the wind power blade installation process is greatly reduced.

The invention discloses a sleeve-shaped tuned mass damper mounting method based on parameter design calculation. The sleeve-shaped tuned mass damper mounting method comprises the following steps that S1, parameters of a single-column wind turbine platform and a whole machine structure are calculated; s2, calculating parameters of the sleeve-shaped tuned mass damper according to the structural parameters of the wind turbine; s3, the sleeve-shaped tuned mass damper is installed on the single-column type wind turbine platform; in the step S2, a kinetic equation is established through a kinetic analysis model, the optimal damping coefficient cd and the distance d of the translational and rotational freedom degrees are solved, and the step S2 comprises the substeps that S21, the single-column wind turbine platform and the sleeve-shaped tuned mass damper are simplified into equivalent four-freedom-degree models; s22, assuming that external excitation is a simple harmonic load, and deducing translation response and rotation response of the sleeve-shaped mass body and the single-column type wind turbine platform; s23, determining a damping tuning parameter and a frequency tuning parameter; s24, solving an optimal damping coefficient copt by a simultaneous equation in combination with a branch resonance point condition; and S25, calculating the distance d according to the rotation radius ratio rho.

The utility model provides a lifting device for a tower crane. The lifting device comprises a mounting seat, a bracket, a hanging bracket and a steel wire rope, the mounting seat is fixed to the top of a cabin, the support is mounted on the mounting seat, and the hanging bracket is arranged at the top of the support and provided with the hoisting pulley block. A lifting pulley block is arranged at the rear end of the on-tower crane, and when the on-tower crane is vertically arranged, the lifting pulley block and the hoisting pulley block are oppositely arranged; the hoisting pulley block comprises at least one hoisting pulley which is coaxially arranged, and the lifting pulley block comprises at least one lifting pulley which is coaxially arranged; a guide pulley block is arranged on a suspension arm of the on-tower crane; when the on-tower crane is lifted, one end of the steel wire rope is fixed on the on-tower crane or the hanging bracket, and the other end of the steel wire rope penetrates through the lifting pulley block, the hoisting pulley block and the guide pulley block and then is connected to a power unit arranged below the fan tower; the power unit tightens the steel wire rope to lift the on-tower crane.

The utility model discloses a vertical shaft light-weight blade universal breeze power generation device which comprises a tower drum, a stand column, a net rack, blades, a generator set, a mounting base and a bearing mechanism. The net frame is arranged on the stand column, the blades are fixed to the net frame, the tower barrel is hollow, a step ladder for climbing is arranged in the tower barrel, the generator set is fixedly arranged in the tower barrel through the mounting frame, the bottom end of the stand column is connected with the mounting base, the mounting base is arranged on the bearing mechanism and rotationally connected with the bearing mechanism, and the bearing mechanism is arranged at the top end of the tower barrel. One end of the mounting seat is connected with a generator set; blades are blown by breeze to drive the net rack, the stand column and the mounting base to rotate, and then the generator set is driven to rotate for power generation. According to the utility model, the blades are vertically and densely arranged, so that the wind direction limitation is avoided, and acting force can be generated in various wind directions to drive a generator set to operate and generate electricity.

The invention relates to the technical field of wind power generation facilities, in particular to a construction platform for installing a wind power concrete tower drum, which comprises a support assembly, an expansion assembly and a butt joint assembly, the support assembly comprises an upper support plate and a lower support plate which are arranged at an interval up and down, and the expansion assembly comprises a plurality of expansion pieces arranged along the circumferential direction; the lower ends of the expansion pieces are slidably connected with the upper surface of the lower supporting plate, filling pieces are arranged at the splicing positions of every two adjacent expansion pieces, and the lower ends of the filling pieces are slidably connected with the lower surface of the upper supporting plate. A positioning hydraulic cylinder is arranged at the upper end of the expansion piece, and a jacking block is movably arranged at the end of a piston rod of the positioning hydraulic cylinder and abuts against the inner wall of the shell ring. According to the device, the butt joint assembly is matched with the positioning hydraulic cylinder to adjust the position of the shell ring, manual adjustment of workers is not needed, and time and labor are saved.

To suitably mount a blade without using a ground crane.SOLUTION: A lift up device 20 comprises: an elevation frame part 30 supported by a guide tower 21 provided around a tower 11 to transport a blade 15a to an apex of the tower 11 of a wind power generator, and configure elevatably; and a second trestle 50 configured to suspend the blade 15a, and configured to move in a horizontal direction on the elevation frame part 30 to mount the blade 15a to a blade fitting port 14a of a hub 14 provided at the apex of the tower 11.SELECTED DRAWING: Figure 18