CN214533370U - A supplementary interfacing apparatus of independently over-and-under type for fan blade installation - Google Patents

Abstract

The utility model provides an autonomous lifting type auxiliary docking device for installing fan blades, which comprises a hoop mechanism, a tower cylinder holding mechanism, a blade centering mechanism and a controller, wherein the hoop mechanism comprises a first embracing ring and a second embracing ring which are connected in sequence, and the first embracing ring and the second embracing ring are respectively used for installing the tower cylinder and the blades in an openable and closable manner; the tower drum enclasping mechanism is arranged along the inner side of the circumferential direction of the first enclasping ring, so that the hoop mechanism can move along the length direction of the tower drum and can be fixed on the tower drum; the blade centering mechanism is arranged along the circumferential inner side of the second holding ring; the motion of mechanism, blade centering mechanism is embraced to controller control tower section of thick bamboo, the utility model discloses an adopt staple bolt mechanism, solved the difficult problem of hoist and mount butt joint in the perpendicular installation of fan blade, the installation of device itself is convenient with the dismantlement, and repeatedly usable has improved fan blade's installation effectiveness, and the commonality is strong.

Description

A supplementary interfacing apparatus of independently over-and-under type for fan blade installation

Technical Field

The utility model relates to a wind-powered electricity generation technical field specifically relates to an independently supplementary interfacing apparatus of over-and-under type for fan blade installation.

Background

In recent years, offshore wind power is rapidly developed, and the capacity of new machines in the world is frequently innovative. With the arrival of the wind power fair era in China, the wind power cost has the requirement of further reduction. The installation cost of the fan accounts for about 20% of the total project cost, and the installation method for reducing the installation cost of the fan by adopting a convenient and efficient installation mode has very important significance. At present, most offshore wind turbines adopt fixed foundations, and most wind power plants are distributed in shallow sea areas with the water depth less than 40 m. For the installation of the fixed offshore wind turbine, the method mainly comprises two stages of the installation of a fixed foundation and the hoisting of a wind turbine body, wherein the hoisting of the wind turbine can be divided into an integral hoisting mode and a split hoisting mode. With the trend of large-scale offshore wind turbines, the requirement on a crane for integral hoisting is too high, and a split hoisting mode becomes the mainstream. The split hoisting of the offshore wind turbine is to split the wind turbine into parts such as a tower, a cabin, a hub and blades, or pre-assemblies of the parts combined with each other, then the parts are transported to a wind turbine installation sea area, and the parts are successively hoisted, closed and installed on a wind turbine foundation by a crane on an installation ship. In this period, the component hoisting is greatly influenced by the sea conditions (wind, wave, flow and the like) of the sea area where the component is installed, so the installation requirement sea conditions are severe, the hoisting needs to be stopped when the component is slightly stormy waves, and the installation cost of the fan is high.

In the split hoisting process of most of the fans, single-blade hoisting is needed, the single-blade hoisting generally adopts a rigid arm structure hoisting tool to fix the blades, and horizontal hoisting, oblique hoisting or vertical hoisting can be adopted. The crane lifts the blades to the high altitude through the lifting appliance, then the positions and postures of the blades are continuously adjusted through modes of moving the crane, manually pulling a mooring rope and the like until the connecting bolts at the root parts of the blades are inserted into the corresponding bolt holes of the fan hub and locked, and single-blade lifting is completed. In the hoisting process, the blades are influenced by wind load, the whole tower barrel cabin is influenced by wind and wave load, the blades and the tower barrel cabin are shaken, air butt joint and folding are difficult to complete, and even the condition that a blade root connecting bolt fails in butt joint is damaged is caused.

Aiming at the difficult problem of single blade butt joint, besides the mode of using inefficient and dangerous manpower to pull cables in practice, the prior art has a method for actively controlling the blades and the lifting appliance, such as using a winch to actively control the cables to stabilize and control the blades to move, or using a rope and pulley structure connected between a crane and the lifting appliance to realize the attitude control of the blades. In addition, in the prior art, an auxiliary butt joint device is additionally arranged on a hub or a blade, so that the allowable offset of butt joint of the blade is increased, and the auxiliary butt joint device generally has the problem of difficult assembly and disassembly.

For example, patent document CN107387329A discloses a hub docking device suitable for installing a single blade of an offshore wind turbine, which includes a circular snap ring, a spring damper, a force applicator, a buffer plate, a controller and an electric motor, the device uses a spring and buffer plate structure, and the blade and the hub are gradually folded when being docked, so as to achieve the effect of guiding the blade root to be aligned with the hub, but the docking process of the design still needs manpower to assist in stabilizing the motion of the blade; for another example, patent document CN109837901A discloses an offshore wind turbine single pile foundation pile gripper, which adopts a double-layer hoop structure and a hydraulic clamping mechanism, and sets two mutually perpendicular slide rails to realize the bidirectional translation of the pile gripper, thereby effectively controlling the movement of the single pile foundation to be installed and ensuring the stable recovery of the pile gripper. However, the two movable arms inside the pile gripper in the design have limited efficacy, redundant movable functions and large device volume and weight, and the adopted slide rail structure occupies a large deck area, and as disclosed in patent document US7207777B2, an installation method for fan blades and a corresponding hanger system are provided. For example, patent document CN 206278171U discloses a modular multifunctional tower drum automatic climbing device, which adopts a plurality of same climbing units connected end to end through a connecting belt to encircle a tower drum, and a steering wheel and a driving motor on each climbing unit can realize vertical, horizontal and spiral movement of the whole annular device on a fan tower drum. The device mainly used tower section of thick bamboo overhauls and maintains, and the modular design makes it dismantle convenient and applicable different model fans, nevertheless climbs and adopts the connecting band to connect between the module, and the clamp force is limited, and the load capacity is limited and the security is not enough, and annular connector yielding slope when this design load is unbalanced simultaneously leads to each unit load inhomogeneous, probably arouses the installation danger.

Therefore, aiming at the difficult problems of hoisting, butting and folding of the blades of the offshore wind turbine, a convenient and efficient auxiliary installation device and method are urgently needed, the relative movement between the hoisted blades and the hub is eliminated, and high-precision butting is realized.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an auxiliary interfacing apparatus of independently over-and-under type for fan blade installation.

According to the utility model provides a pair of supplementary interfacing apparatus of autonomic over-and-under type for fan blade installation, include:

the hoop mechanism comprises a first hoop and a second hoop which are sequentially connected, and the first hoop and the second hoop can be used for mounting a tower barrel and blades in an openable and closable manner respectively;

the tower cylinder holding mechanism is arranged along the inner side of the circumferential direction of the first holding ring, can enable the hoop mechanism to move along the length direction of the tower cylinder and can fix the hoop mechanism on the tower cylinder;

the blade centering mechanism is arranged along the inner side of the circumferential direction of the second hoop, so that the blades can be limited in the second hoop and cannot swing in the radial direction, and the axis position of the blades can be adjusted;

and the controller is in signal connection with the tower cylinder holding mechanism and the blade centering mechanism respectively.

Preferably, the first hoop is provided with a right tower hoop movable arm and a left tower hoop movable arm, and the right tower hoop movable arm and the left tower hoop movable arm can be selected between an open state and a closed state, wherein in the fully open state, the opening of the first hoop allows the tower to be installed inside the first hoop, and in the closed state, the first hoop allows the tower clasping mechanism to be adjusted between clamping the tower and releasing the tower.

Preferably, the right movable arm and the left movable arm of the tower drum hoop are switched between an open state and a closed state in a mechanical driving mode, and when the tower drum hoop is in the closed state, the opposite ends of the right movable arm and the left movable arm of the tower drum hoop are connected and locked or unlocked in the mechanical driving mode.

Preferably, the second clasping ring is selectable between an open state and a closed state through the blade hoop movable arm, wherein in the fully open state, the opening of the second clasping ring allows the blade to be installed inside the second clasping ring, and in the closed state, the second clasping ring allows the blade centering mechanism to be adjusted between clamping and releasing the blade.

Preferably, the movable arm of the blade hoop is switched between an open state and a closed state in a mechanical driving mode, and when the movable arm of the blade hoop is in the closed state, the movable arm of the blade hoop is locked or unlocked in the mechanical driving mode.

Preferably, a counterweight is arranged at one end of the first embracing ring, which is back to the second embracing ring, so as to adjust the center of gravity of the hoop mechanism.

Preferably, the tower cylinder clasping mechanism adjusts the clamping force between the tower cylinder by driving a plurality of clamping units which are uniformly arranged along the circumferential inner side of the first clasping ring to move towards or back to the axis direction of the first clasping ring, and drives the tower cylinder clamping wheels of the clamping units to rotate so as to realize the movement along the length direction of the tower cylinder.

Preferably, the blade centering mechanism drives a plurality of positioning units which are uniformly arranged along the circumferential inner side of the second holding ring to move towards or away from the axis direction of the second holding ring, so that the adjustment of the axis position of the blade and the adjustment of the clamping force of the blade are realized.

Preferably, the tower cylinder clasping mechanism is driven by a motor and/or an oil cylinder;

the blade centering mechanism is driven by a motor and/or an oil cylinder;

the opening and closing actions of the first embracing ring and the second embracing ring are driven by a motor and/or an oil cylinder.

Preferably, the hoop mechanism outputs height information through the height sensor;

the tower cylinder clasping mechanism outputs clamping force information between the tower cylinder clasping mechanism and the tower cylinder through the force sensor;

the controller is in signal connection with the ground control station through wireless communication equipment.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses an adopt staple bolt mechanism, solved the difficult problem of hoist and mount butt joint in the perpendicular installation of fan blade, the device can scramble to the assigned position, can descend to the recovery position after accomplishing the hoist and mount to installation itself is convenient with the dismantlement, and repeatedly usable has improved fan blade's installation effectiveness, and factor of safety is high.

2. The utility model discloses in along a plurality of tower section of thick bamboo clamping wheel that first armful circumference inboard was arranged can be through the installation space between adjusting and then can adapt to not unidimensional fan tower section of thick bamboo, simultaneously, along a plurality of blade root locating wheels that second armful circumference inboard was arranged can be through adjusting installation space between and then can adapt to not unidimensional fan blade, the commonality is strong.

3. The utility model discloses a staple bolt mechanism and hydro-cylinder driven gyro wheel blade are to heart mechanism to the messenger waits to install blade and a tower section of thick bamboo relatively static, and can adjust blade root center and make it align with wheel hub mounting hole center, make the butt joint fold accurate, steady completion.

4. The utility model discloses a set up the counter weight frame and concentrate counterweight plate and other equipment and place, both realized the function of counter weight, be favorable to the miniaturization of equipment again.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of an auxiliary docking device of the present invention;

fig. 2 is a schematic top view of the auxiliary docking device of the present invention;

fig. 3 is a schematic front structural view of the auxiliary docking device of the present invention;

FIG. 4 is a schematic sectional view of the hydraulic clamping unit of a tower of the present invention;

FIG. 5 is a schematic view of the sectional structure of the vane hydraulic positioning unit of the present invention when connected to the vane;

FIG. 6 is a schematic structural view of the crane auxiliary docking device during hoisting, wherein the first hoop is in a fully opened state and faces the tower;

FIG. 7 is a schematic structural diagram illustrating the first clasping ring after clasping the tower, and moving the tower clamping wheel from the bottom of the tower to the installation position at the top of the tower along the height direction of the tower, and adjusting the orientation of the nacelle and the hub to a fully opened state;

FIG. 8 is a schematic structural diagram of the process that the crane lifts the blade and puts the root of the blade into the second embracing ring;

FIG. 9 is a schematic structural view of the blade root with a second hoop placed therein and adjusted to a closed state, and then the blade root center position and the X-Z plane inclination angle are adjusted;

fig. 10 is a block diagram of the auxiliary docking device according to the present invention.

The figures show that:

1-Tower 505-drive Box

2-blade 600-blade root positioning wheel

3-nacelle 601-positioning axle

4-hub 602-loose axle

5-vertical hoisting special lifting appliance 603-positioning hydraulic rod

6-auxiliary cable 604-positioning cylinder

7-positioning pin 700-tower cylinder movable arm oil cylinder

100-tower drum hoop right fixed arm 701-tower drum movable arm hydraulic rod

101-left fixed arm 702 of blade hoop-hydraulic rod base of movable arm of tower drum

102-hoop connecting structure 703-tower cylinder base with movable arm

103-tower drum hoop left fixed arm 800-blade movable arm oil cylinder

104-blade hoop right fixed arm 801-blade movable arm hydraulic rod

105-lifting ring 802-blade movable arm hydraulic rod base

200-tower drum hoop right movable arm 803-blade movable arm oil cylinder base

300-tower drum hoop left movable arm 900-tower drum hoop pin mounting device

400-blade hoop movable arm 901-tower cylinder hoop pin shaft oil cylinder

500-tower drum clamping wheel 1000-blade hoop pin mounting device

501-connecting plate 1001-blade hoop pin shaft oil cylinder

502-clamping axle 1100-weight holder

503-clamping hydraulic rod 1101-equipment box

504-clamping cylinder 1102-counterweight plate

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

Example 1:

the utility model provides an autonomous lifting type auxiliary docking device for fan blade installation, comprising a hoop mechanism, a tower cylinder holding mechanism, a blade centering mechanism and a controller, wherein the hoop mechanism comprises a first holding ring and a second holding ring which are connected in sequence, the first holding ring and the second holding ring can be respectively used for installing a tower cylinder 1 and a blade 2 in an openable and closable manner, the hoop mechanism can output height information, and the hoop mechanism preferably outputs the height information through a height sensor; the tower cylinder clasping mechanism is arranged along the inner side of the circumferential direction of the first clasping ring, can move along the length direction of the tower cylinder 1 and can fix the hoop mechanism on the tower cylinder 1, and can output clamping force information between the tower cylinder clasping mechanism and the tower cylinder 1, and the tower cylinder clasping mechanism preferably outputs clamping force information between the tower cylinder clasping mechanism and the tower cylinder 1 through a force sensor; the blade centering mechanism is arranged along the inner side of the circumferential direction of the second hoop, so that the blades 2 are limited in the second hoop and do not swing radially, and the axis positions of the blades 2 can be adjusted; the controller is in signal connection with the tower cylinder enclasping mechanism and the blade centering mechanism respectively, receives the clamping force information and the height information and controls the movement of the tower cylinder enclasping mechanism and the blade centering mechanism, is in signal connection with the ground control station through wireless communication equipment, and can transmit the real-time condition of the auxiliary device to the ground control station and receive and execute the control signal of the ground control station.

The utility model discloses in signal connection both can adopt the cable to realize wired connection, can adopt wireless mode to realize signal transmission again, specifically should rationally select according to the application scene of reality to satisfy the demand of actual product.

Further, the first hoop can be selected between an open state and a closed state through the tower hoop right movable arm 200 and the tower hoop left movable arm 300, wherein in the fully open state, the opening of the first hoop allows the tower 1 to be installed inside the first hoop, and in the closed state, the first hoop allows the tower hugging mechanism to be adjusted between clamping the tower 1 and releasing the tower 1; the second clasping ring is selectable between an open state and a closed state by having a blade hoop movable arm 400, wherein in the fully open state the opening of the second clasping ring allows the blade 2 to be mounted inside the second clasping ring, and in the closed state the second clasping ring allows the blade centering mechanism to be adjusted between clamping the blade 2 and releasing the blade 2.

Specifically, the right movable arm 200 and the left movable arm 300 of the tower hoop are switched between an open state and a closed state in a mechanical driving manner, and when the right movable arm 200 and the left movable arm 300 of the tower hoop are in the closed state, opposite ends of the right movable arm 200 and the left movable arm 300 of the tower hoop are connected and locked or unlocked in the mechanical driving manner; the opening and closing actions of the first embracing ring and the second embracing ring adopt a driving mode of motor driving, oil cylinder driving or mutual matching of the motor and the oil cylinder.

The blade hoop movable arm 400 is mechanically driven to switch between an open state and a closed state, and when the blade hoop movable arm 400 is in the closed state, the blade hoop movable arm 400 is mechanically driven to lock or unlock. The blade centering mechanism adopts a motor drive mode, an oil cylinder drive mode or a drive mode of mutually matching the motor and the oil cylinder.

Further, the tower cylinder clasping mechanism adjusts the clamping force between the tower cylinder 1 by driving a plurality of clamping units which are uniformly arranged along the circumferential inner side of the first clasping ring to move towards or back to the axis direction of the first clasping ring, and drives the tower cylinder clamping wheels 500 of the clamping units to rotate so as to realize the movement along the length direction of the tower cylinder 1. The tower clamping wheel 500 is driven by a drive, preferably an electric motor. The tower cylinder clasping mechanism is driven by a motor and/or an oil cylinder.

The blade centering mechanism moves towards or back to the axis direction of the second holding ring by driving a plurality of positioning units which are uniformly arranged on the inner side of the circumference of the second holding ring to realize the adjustment of the axis position of the blade 2 and the adjustment of the clamping force of the blade 2 and the driving.

Specifically, for the auxiliary device to be stably hoisted, a balance weight is arranged at one end of the first embracing ring, which is back to the second embracing ring, and the number and the installation position of the balance weight can be adjusted to the center of gravity of the hoop mechanism.

Example 2:

this embodiment is a preferred embodiment of embodiment 1.

The embodiment provides an autonomous lifting type auxiliary docking device for installing a fan blade, wherein the auxiliary device for vertically installing the fan blade comprises a hoop mechanism, a tower cylinder holding mechanism, a blade centering mechanism and a controller, and is shown in fig. 1 to 9.

The hoop mechanism comprises a first hoop and a second hoop which are sequentially connected, the first hoop and the second hoop are connected to form a hoop main body, the hoop main body comprises four fixed arms which are respectively a tower drum hoop right fixed arm 100, a blade hoop left fixed arm 101, a tower drum hoop left fixed arm 103 and a blade hoop right fixed arm 104, and the left fixed arm and the right fixed arm are connected by a hoop connecting structure 102; four hanging rings 105 are arranged on the four fixed arms, the hoisting equipment in the embodiment adopts a crane and is used for fixing a crane sling when the device is hoisted, and the hanging rings on the tower drum hoop fixed arm and the hanging rings on the blade hoop fixed arm are preferably arranged on two sides of the gravity center of the whole device so as to ensure that the device can be kept horizontal in the hoisting process.

The first hoop is provided with two movable arms, the second hoop is provided with a movable arm, and the movable arms comprise a tower hoop right movable arm 200, a tower hoop left movable arm 300 and a blade hoop movable arm 400. Wherein, tower section of thick bamboo staple bolt right side digging arm 200 and tower section of thick bamboo staple bolt left side digging arm 300 are articulated with tower section of thick bamboo staple bolt right side fixed arm 100, tower section of thick bamboo staple bolt left side fixed arm 103 respectively, and blade staple bolt digging arm 400 is articulated with blade staple bolt left side fixed arm 101. The left and right arm structures of the tower drum hoop are symmetrical relative to the connecting line of the double-hoop center, and the left fixing arm 101 of the blade hoop is relatively shorter than the right fixing arm 104 of the blade hoop; the right movable arm 200 and the left movable arm 300 of the tower drum hoop are hinged through a pin shaft, the cylinder 901 of the pin shaft of the tower drum hoop is used for pushing out a bolt from the pin assembling device 900 of the tower drum hoop, and the bolt is inserted into a bolt hole to realize the double-arm hinge. The blade hoop movable arm 400 and the blade hoop right fixed arm 104 can be hinged through a pin shaft, and the blade hoop pin shaft oil cylinder 1001 can push a pin into a pin hole from the blade hoop pin installing device 1000 to realize the hinge.

Furthermore, the rotation of the movable arm is driven by a hoop movable arm hydraulic device, a hydraulic cylinder is preferably adopted by the hoop movable arm hydraulic device, a tower drum movable arm hydraulic rod base 702 and a tower drum movable arm oil cylinder base 703 are respectively fixed on the tower drum hoop fixed arm and the movable arm, and the tower drum movable arm oil cylinder 700 and the tower drum movable arm hydraulic rod 701 are respectively hinged on the bases at two ends. The tower cylinder movable arm cylinder 700 can push or retract the tower cylinder movable arm hydraulic rod 701, so that the right movable arm 200 and the left movable arm 300 of the tower cylinder hoop are closed or unfolded. The rotation of the blade hoop movable arm 400 depends on a similar hydraulic cylinder system, and the blade hoop movable arm comprises a blade movable arm oil cylinder 800, a blade movable arm hydraulic rod 801, a blade movable arm hydraulic rod base 802 and a blade movable arm oil cylinder base 803, and the closing or the unfolding of the movable arm can be realized in the same way.

The tower clamping mechanism comprises four hydraulic clamping units which are symmetrically arranged, and each hydraulic clamping unit comprises a tower clamping wheel 500, a connecting plate 501, a clamping wheel shaft 502, a clamping hydraulic rod 503, a clamping oil cylinder 504 and a driving box 505. The clamping wheel 500 of the tower drum is fixed on a clamping wheel shaft 502, rubber or other anti-skidding materials are arranged on the clamping wheel for buffering and wall surface protection when the tower drum 1 is clamped, and the two clamping wheel shafts 502 are hinged with connecting plates 501 on two sides; the connecting plate 501 is fixed on a clamping hydraulic rod 503; the clamping oil cylinder 504 can push out or contract structures such as a clamping hydraulic rod 503 and a clamping wheel, so that the whole auxiliary device is clamped and fixed on the tower barrel 1, and the clamping force can be adjusted to adapt to the diameter of the tower barrel which changes; the driving box 505 is fixed on the connecting plate 501 corresponding to the upper clamping wheel shaft, the upper clamping wheel shaft penetrates through the driving box 505 and is connected with the internal driving mechanism, when the driving mechanism is started, the tower clamping wheel 500 can be driven to roll, and then the whole auxiliary device is driven to climb or descend on the tower 1, and the type of the driving mechanism can be oil pressure driving, motor driving and the like.

The blade centering mechanism comprises four hydraulic positioning units which are symmetrically arranged in a cross manner in the X, Y direction, and each hydraulic positioning unit comprises two blade root positioning wheels 600 capable of rolling along the Z direction, a positioning wheel shaft 601, a movable shaft 602, a positioning hydraulic rod 603 and a positioning oil cylinder 604. The positioning wheel shaft 601 penetrates through the blade root positioning wheel 600, the blade root positioning wheel 600 can rotate around the positioning wheel shaft 601, and rubber or other anti-skid materials are arranged on the blade root positioning wheel 600; the positioning wheel shaft 601 penetrates through the movable shaft 602, so that the blade root positioning wheel 600 and the positioning wheel shaft 601 can integrally rotate around the movable shaft, and the circular section of the blade and the possible eccentric arrangement condition of the blade root are adapted; the movable shaft 602 is fixed on the positioning hydraulic rod 603, and the movable shaft 602 and the positioning hydraulic rod 603 are pushed out or retracted by the positioning oil cylinder 604, so that the root of the blade can be pushed to translate in the X-Y plane. Meanwhile, the blade root positioning wheel 600 enables the blade 2 to move up and down along the Z axis; when the lifting appliance is controlled by a crane to slightly move along the X direction, the blade 2 slightly rotates by taking the blade root positioning wheel 600 as a lever fulcrum, so that the purpose of finely adjusting the internal rotation angle of the X-Z plane of the blade 2 is achieved (because three flange disc surfaces butted with the blade 2 are slightly distributed on the hub 4 in a conical manner, when the hub 4 rotates to enable one of the flange disc surfaces to face downwards, the flange disc surfaces are not completely parallel to the sea level, but have a smaller included angle), and therefore the device can be ensured to completely adjust the bolt disc surfaces of the root part of the blade to be parallel to the flange disc surfaces butted with the hub and align the centers of the disc surfaces.

The controller and counterweight are placed on the weight rack 1100. The two weight racks 1100 are symmetrical relative to the central connecting line of the first embracing ring and the second embracing ring and are respectively fixed on the right movable arm 200 of the tower drum hoop and the left movable arm 300 of the tower drum hoop, and the equipment box 1101 and the weight plates 1102 are arranged on the weight racks 1100. Among them, the equipment box 1101 has a power generating equipment, a hydraulic pump and a control box. The power generation equipment can provide power for various equipment on the device; the hydraulic pump is connected with each hydraulic oil cylinder on the device and provides hydraulic oil with corresponding pressure for each hydraulic oil cylinder; the control box contains height sensor, controller and wireless communication equipment. The height sensor is used for monitoring the real-time height of the auxiliary device, the type of the height sensor is preferably GPS, and the real-time height information obtained by the height sensor can be output to the control box and the ground control station so as to regulate and control the climbing height of the device. The controller can automatically adjust the oil pressure in the clamping oil cylinder 504 according to the clamping force information of the device on the tower drum 1, which is obtained by the force sensor arranged in the tower drum clasping mechanism, so that the clamping hydraulic rod 503 is stretched and contracted, the clamping force is controlled at a first preset target pressure, and the function that the device automatically adapts to the diameter of the tower drum in the climbing process is realized. In addition, the controller can receive manual control signals of operators through the wireless communication equipment, start or pause the driving device, and adjust each hydraulic device on the device so as to realize the operations of hoop unfolding and closing, pin shaft pushing and recovering, blade root center position adjustment and the like; the equipment box 1101 and the weight plate 1102 together function as a counterweight, and the number of the weight plates 1102 can be adjusted to keep the center of gravity of the device at the center of the auxiliary device as much as possible, so as to reduce the moment applied to the whole device.

The utility model discloses a further improve, still help realizing a fan blade's mounting method, specifically, after tower section of thick bamboo 1, cabin 3 and wheel hub 4 hoist and mount finish, prepare to carry out single blade vertical hoisting, wherein, the installation carries out blade vertical installation based on the supplementary interfacing apparatus of autonomous lifting formula that is used for fan blade installation, including lifting by crane the stage in the installation, climbing stage, holding tightly the stage, butt joint stage and recovery stage, as shown in fig. 6 ~ 9, concrete operating procedure is as follows:

in the hoisting stage, 101, four slings are passed through four rings 105 on the device, as shown in fig. 6, the slings are hooked by a crane hook and the auxiliary device is hoisted, and the crane boom is moved to make the auxiliary device close to the tower 1.

102, withdrawing the pin shaft into a tower drum hoop pin assembling device 900 by a tower drum hoop pin shaft oil cylinder 901, withdrawing a tower drum movable arm hydraulic rod 701 by a tower drum movable arm oil cylinder 700, opening a tower drum enclasping mechanism, and expanding left and right movable arms of the tower drum hoop to a certain angle, so that the tower drum 1 can enter a first enclasping center from an opening.

And 103, pushing out the tower drum movable arm hydraulic rod 701 by the tower drum movable arm oil cylinder 700, and closing the tower drum enclasping mechanism. The cylinder 901 for the pin roll of the tower hoop pushes the pin roll out of the pin mounting device 900 of the tower hoop, so that the movable arm is hinged in a closed manner. The tower clamping mechanism is started, the clamping hydraulic rod 503 is pushed out by the clamping cylinder 504, the tower clamping wheel 500 compresses the tower 1 until the pressing force reaches a first preset target pressure, the target value of the pressing force is input by an operator in advance, and the target value of the pressing force is required to ensure that the auxiliary device does not slide on the tower 1.

Step 201, in a climbing stage, a driving device in a driving box 505 is started, a tower drum clamping wheel 500 slowly rolls on the surface of a tower drum 1 to drive the auxiliary device to integrally climb upwards, and in the climbing process, a control box adjusts the extension length of a clamping hydraulic rod 503 according to pressing force data obtained by a force sensor, so that the pressing force is controlled at a target value, and the diameter of the tower drum is automatically adapted to change. When the height sensor detects that the device climbs to the installation height, an operator manually or the controller automatically pauses and locks the driving device, and the hoop mechanism is fixed at the installation height.

Step 202, adjusting a Yaw angle (Yaw) of the nacelle through a Yaw system of the nacelle 3, so that the orientation of the hub 4 on the nacelle 3 is the same as the central connecting line of the first embracing ring and the second embracing ring on the hoop mechanism, the hub 4 should be located right above the second embracing ring after the adjustment is finished, and the adjustment error of the hub cannot exceed the adjustment range of the blade centering mechanism.

Step 203, rotating the hub 4 to enable the flange plate surface of the blade to be butted to rotate to the lowest point of the hub 4, and locking the rotor by the brake device to enable the rotation angle of the hub 4 to be fixed.

Step 301, in the holding stage, the blade hoop pin shaft oil cylinder 1001 retracts the pin shaft into the blade hoop pin installing device 1000, the blade movable arm oil cylinder 800 retracts the blade movable arm hydraulic rod 801, and the blade centering mechanism is opened. The blade hoop movable arm 400 is unfolded to a certain angle so that the root of the blade to be installed can enter the second hoop center from the opening.

Step 302, the blade hoisting preparation work is the same as the hoisting process of a common single blade, and the blade 2 is clamped and hoisted by using the vertical hoisting special-purpose hoist 5. And (3) adjusting the posture of the blade 2 to be vertical, and enabling the blade root bolt disk surface to be upward and to be parallel to the flange disk surface to be butted with the hub 4 as much as possible. The blade 2 is lifted to the installation height, namely the height of a blade root bolt is slightly lower than the height of the flange disc surface of the hub of the fan, and the crane boom is moved to enable the blade 2 to be close to the tower barrel 1 and the auxiliary device.

And 303, moving the crane jib, and slowly putting the root of the blade into the blade centering mechanism. Meanwhile, the blade movable arm oil cylinder 800 slowly pushes out the blade movable arm hydraulic rod 801, the blade hoop movable arm 400 is closed, and the blade hoop pin shaft oil cylinder 1001 pushes out the pin shaft from the blade hoop pin installing device 1000, so that the movable arm and the fixed arm are hinged in a closed mode. At this point it is noted that the slings that hoist the blade cannot enter the blade centering mechanism.

In step 304, the operator operates the four hydraulic positioning units of the blade centering mechanism, and the positioning hydraulic rods 603 are pushed out, so that the four pairs of blade root positioning wheels 600 compress the root of the blade, and at this time, the center of the blade should be at the center of the blade centering mechanism, and the four pairs of positioning wheels are limited by X, Y directions and kept relatively still with the auxiliary device. The force sensor arranged in the blade centering mechanism can measure the pressing force of the blade root positioning wheel on the blade 2, and an operator can ensure that the pressing force is not too large to cause the damage of the blade 2.

Step 401, in a butt joint stage, an operator adjusts the extension and contraction of positioning hydraulic rods of four hydraulic positioning units of a blade centering mechanism, so as to adjust the position of the center of the root of a blade; the crane boom is moved in a small range or a cable on the special vertical hoisting sling is pulled to enable the sling to move in a small distance in the X direction, or the counterweight of the sling is adjusted, so that the inner corner of the X-Z plane of the blade is adjusted (the root of the blade faces the positive direction of the Z axis in the original vertical state). And after adjustment, the blade inclines at a small angle in an X-Z plane, the bolt plane at the root part of the blade is parallel to the plane of the flange disc surface of the blade to be butted with the hub, and the center of the disc surface is aligned.

It should be noted that the adjustment blade has a generally small (about 5 °) internal rotation angle in the X-Z plane, and the deformable rubber or other anti-slip material on the blade positioning wheel 600 allows the blade to be tilted at a small angle without adjusting the positioning hydraulic rod (or slightly adjusting if the clamping force is too large); in addition, the alignment mode of the blade center and the center of the surface of the butt flange can take various forms, can be adjusted continuously by hand completely, and can also set an optical positioning point at the blade root or adopt laser ranging to automatically align according to optical positioning information.

Step 402, after the flange disc surface and the blade root bolt plane are aligned in parallel, adjusting a variable pitch device of the hub to align a positioning pin hole on the flange disc with a positioning pin 7 at the root of the blade so as to accurately butt joint the blade after the blade is lifted.

And 403, the crane shrinks the sling to lift the blade upwards, and the bolt at the root of the blade is inserted into the bolt hole in the flange plate and locked.

Step 404, after the blade is locked, the blade hoop pin shaft oil cylinder 1001 retracts the pin shaft into the blade hoop pin installing device 1000, the blade movable arm oil cylinder 800 retracts the blade movable arm hydraulic rod 801 slowly, and the blade hoop movable arm 400 is opened to the maximum angle. The drive means in the drive box 505 is activated and the entire assembly is gradually lowered along the tower 1 to a position out of interference with the installed blades so as to rotate the hub 4 to remove the installed blades, and when the next blade is to be hoisted, steps 201 to 404 are repeated until all the blades are hoisted.

In the recycling stage, after all the blades 2 are installed and locked, the driving device in the driving box 505 is started, and the whole device gradually descends to a recyclable position along the tower 1.

At step 502, when the device is recovered, the four slings are re-secured to the four rings 105, hooked with the crane hook and tightened. The cylinder 901 of the tower hoop pin shaft retracts the pin shaft into the blade hoop pin mounting device 900, and the cylinder 700 of the tower movable arm slowly retracts the hydraulic rod 701 of the tower movable arm, so that the left movable arm and the right movable arm of the tower hoop are opened. And moving the crane boom, lifting the device away from the tower barrel 1 and recovering the device for lifting the next fan blade.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. An auxiliary interfacing apparatus of autonomous lifting type for installation of fan blades, comprising:

the hoop mechanism comprises a first hoop and a second hoop which are sequentially connected, and the first hoop and the second hoop can be used for mounting a tower barrel and blades in an openable and closable manner respectively;

the tower cylinder holding mechanism is arranged along the inner side of the circumferential direction of the first holding ring, can enable the hoop mechanism to move along the length direction of the tower cylinder and can fix the hoop mechanism on the tower cylinder;

the blade centering mechanism is arranged along the inner side of the circumferential direction of the second hoop, so that the blades can be limited in the second hoop and cannot swing in the radial direction, and the axis position of the blades can be adjusted;

and the controller is in signal connection with the tower cylinder holding mechanism and the blade centering mechanism respectively.

2. The autonomous lifting auxiliary docking apparatus for wind turbine blade installation of claim 1, wherein the first hoop has a tower hoop right movable arm (200) and a tower hoop left movable arm (300) that can be selectively opened and closed, wherein the opening of the first hoop allows the tower to be installed inside the first hoop when in a fully opened state, and the first hoop allows the tower clasping mechanism to be adjusted between clamping the tower and releasing the tower when in a closed state.

3. The autonomous lifting auxiliary docking device for fan blade installation according to claim 2, wherein the tower hoop right movable arm (200) and the tower hoop left movable arm (300) are mechanically driven to switch between an open state and a closed state, and when in the closed state, the opposite ends of the tower hoop right movable arm (200) and the tower hoop left movable arm (300) are connected and mechanically driven to lock or unlock.

4. The autonomous lift assist docking apparatus for fan blade installation of claim 1, wherein the second bail is selectable between an open state and a closed state by having a blade hoop activating arm (400), wherein in the fully open state the opening of the second bail allows the blade to be installed inside the second bail, and in the closed state the second bail allows the blade centering mechanism to be adjusted between clamping and unclamping the blade.

5. The autonomous lifting auxiliary docking device for fan blade installation according to claim 4, characterized in that the blade hoop movable arm (400) is mechanically actuated to switch between an open state and a closed state, when in the closed state, the blade hoop movable arm (400) is mechanically actuated to lock or unlock.

6. The autonomous lifting auxiliary docking device for fan blade installation of claim 1, wherein a counterweight is disposed on an end of the first hoop facing away from the second hoop to adjust a center of gravity of the hoop mechanism.

7. The autonomous lifting auxiliary docking device for fan blade installation according to claim 1, wherein the tower clamping mechanism adjusts the clamping force with the tower by driving a plurality of clamping units arranged uniformly along the circumferential inner side of the first hoop to move towards or away from the axial center direction of the first hoop, and drives a tower clamping wheel (500) of the clamping unit to rotate so as to move along the length direction of the tower.

8. The autonomous lifting auxiliary docking device for fan blade installation of claim 1, wherein the blade centering mechanism is configured to adjust the position of the axial center of the blade and the clamping force applied to the blade by driving a plurality of positioning units, which are uniformly arranged along the circumferential inner side of the second hoop, of the blade centering mechanism to move towards or away from the axial center of the second hoop.

9. The autonomous lifting auxiliary docking device for wind turbine blade installation of claim 1, wherein the tower hugging mechanism is driven by a motor and/or an oil cylinder;

the blade centering mechanism is driven by a motor and/or an oil cylinder;

the opening and closing actions of the first embracing ring and the second embracing ring are driven by a motor and/or an oil cylinder.

10. The autonomous lift-type docking assist apparatus for fan blade installation of claim 1, wherein the hoop mechanism outputs height information via the height sensor provided;

the tower cylinder clasping mechanism outputs clamping force information between the tower cylinder clasping mechanism and the tower cylinder through the force sensor;

the controller is in signal connection with the ground control station through wireless communication equipment.

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