Wind power blade transfer workstation based on self-adaptive attachment of truss structure and air bag

Abstract

The utility model provides a wind power blade transfer work station based on self-adaptive attachment of a truss structure and an air bag. The wind power blade transfer work station comprises a supporting frame, a double-trolley mechanism, a lifting appliance body and a control center. The supporting frame comprises two parallel bidirectional sliding rails, and a supporting beam frame is installed on the two parallel bidirectional sliding rails in a sliding mode. The double-trolley mechanisms are oppositely arranged on the supporting beam frame and used for adjusting the distance between the double-trolley mechanisms so as to adapt to different blade widths. The lower ends of two trolleys in the double-trolley mechanism are respectively provided with a component of the lifting appliance main body for clamping a blade; the lifting appliance body comprises a plurality of C-shaped hooks which are linearly arranged and internally provided with air bags, the air bags in the C-shaped hooks can independently control inflation and deflation, and the air bags are used for adjusting the inflation degree of the air bags according to the outline of the blade lifting position so that the air bags can be attached to the curved surface characteristics of the blade. The control center is used for controlling the working states of the double-trolley mechanism and the lifting appliance main body. The work station has the advantages that the blades are not prone to being damaged, the hoisting efficiency is higher, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting of wind power generation equipment, in particular to a wind power blade transfer workstation based on adaptive fitting of a truss structure and an airbag. Background Art

[0002] As the country's demand for green energy increases, wind power generation has become increasingly popular, and large-scale wind power equipment has been put into use in various places.

[0003] Among them, the lifting of fan blades is the biggest transportation difficulty in the transportation of wind power equipment.

[0004] Currently, wind turbine blades are mainly hoisted using rigid locks. The existing technical defects include:

[0005] 1. Rigid clamps damage blades: Traditional lifting fixtures use metal clamps / locks, which can easily cause indentations or scratches on the blade surface (especially for carbon fiber reinforced composite materials);

[0006] 2. Uneven pressure distribution: The fixed position of the suspension point cannot adapt to the changes in the weight distribution of the blade, and the risk of local stress exceeding the limit is high;

[0007] 3. Low work efficiency: It requires multiple workers to coordinate the work, which is inefficient and takes several hours. It is also difficult to achieve automated lifting.

[0008] In order to solve the above problems, it is necessary to improve the lifting equipment so that it is less likely to damage the blades, the adjustment is more flexible, and the lifting operation efficiency can be improved to a certain extent. Utility Model Content

[0009] The purpose of this utility model is to address the deficiencies of the existing technology and thus provide a wind turbine blade transfer workstation based on a truss structure and adaptive fitting of airbags, which is not easy to damage the blades, has higher lifting efficiency, flexible adjustment methods and high safety.

[0010] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a wind turbine blade transfer workstation based on a truss structure and an airbag adaptive fit, comprising a support frame, a double trolley mechanism, a sling body and a control center;

[0011] The support frame includes two parallel bidirectional slide rails, and a support beam is slidably mounted on the bidirectional slide rails;

[0012] The double trolley mechanisms are relatively arranged on the support beam frame, and are used to adjust the distance between the double trolley mechanisms to adapt to different blade widths;

[0013] The lower ends of the two trolleys in the double trolley mechanism are respectively equipped with components of the sling body for clamping blades;

[0014] The main body of the sling comprises a plurality of C-shaped hooks arranged in a straight line and equipped with airbags. The airbags in each C-shaped hook can be independently controlled to be inflated and deflated, and are used to adjust the inflation level of each airbag according to the contour of the blade hoisting position so as to conform to the curved surface characteristics of the blade.

[0015] The control center is used to control the working status of the double trolley mechanism and the spreader body.

[0016] Preferably, the contact surface of the airbag is a multi-layer composite structure, including an outer layer, a middle layer and an inner layer, the outer layer is a wear-resistant layer, the middle layer is a buffer layer, and the inner layer is a sealing layer.

[0017] Preferably, the outer layer is made of a wear-resistant layer woven from polyurethane aramid fibers.

[0018] Preferably, the middle layer is made of a honeycomb silicone buffer layer.

[0019] Preferably, the inner layer is a butyl rubber airtight layer.

[0020] Preferably, the surface of the outer layer is provided with anti-slip rubber bumps arranged in a matrix.

[0021] Preferably, each airbag is equipped with an independent air valve and a pressure sensor, and a proportional valve for controlling the output ratio and a pressure relief passage for ensuring safety are provided in the air circuit for providing air pressure.

[0022] Preferably, an industrial barcode scanner is installed on the main beam of the spreader to read the electronic code image on the blade to obtain the parameter information of the blade; the control center outputs corresponding control parameters based on the parameter information of the blade to adjust the position of the spreader body and the inflation degree of the airbag.

[0023] Preferably, the components of the sling body also include a sling main beam, a driving mechanism, an active beam and an independent driven module. The sling main beam is installed at the lower end of the trolley and serves as the installation base of the driving mechanism and the active beam; the driving mechanism drives the active beam to make fine adjustments based on the sling main beam through a chain and a screw assembly; the independent driven module is installed on the active beam and is used to fine-tune the height, inclination and horizontal position of the C-shaped hook.

[0024] Preferably, the independent driven module includes a driven beam, a vertical motion module, a horizontal guide rail and a suspension beam assembly. The horizontal guide rail is divided into two sections and is arranged at both ends of the driven beam for horizontal fine-tuning of the suspension position. A set of vertical motion modules is installed on each horizontal guide rail. The bottom end of each vertical motion module is connected to a set of suspension beam assemblies. The two sets of suspension beam assemblies are respectively connected to the front and rear of the C-shaped hook. The two sets of vertical motion modules work together to adjust the height and inclination of the C-shaped hook.

[0025] Compared with the existing technology, the present invention has substantial characteristics and progress. Specifically, the present invention designs a hanger for suspending blades to include two rows of C-shaped hooks with adjustable spacing, and arranges air bags on the inner surface of the C-shaped hooks. By controlling the different degrees of inflation and deflation of different air bags, the shape can be adjusted to adapt to the outer contour surface of the blade, thereby forming a better fitting and more flexible support structure for the blade. On the one hand, it protects the blade from being scratched, and on the other hand, it supports the blade with better force balance, avoiding the risks brought by stress concentration.

[0026] Furthermore, a barcode scanner is set up, and a corresponding electronic code image is set on the blade accordingly, the content of which records the parameter information of the blade. The control center can adjust a series of information such as the position of the sling, lifting height, airbag status, inclination angle, etc. according to the parameter information of the blade to adapt to the contour changes of the blade, and the adjustment flexibility is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of a wind turbine blade transfer workstation based on the adaptive fitting of a truss structure and an airbag in the present invention.

[0028] Figure 2 It is a structural diagram of the sling main body in the utility model.

[0029] Figure 3 It is a schematic diagram of the main structure of the sling in the utility model without the main beam of the sling.

[0030] Figure 4 It is a structural diagram of the driving mechanism in the utility model.

[0031] Figure 5 It is a structural diagram of the active beam in the utility model.

[0032] Figure 6 It is a structural diagram of the independent slave module in the utility model.

[0033] Figure 7 It is a structural diagram of the C-shaped hook in the utility model.

[0034] Figure 8 It is a structural diagram of the airbag in the utility model.

[0035] In the figure: 1. Support frame; 2. Double trolley mechanism; 3. Spreader body;

[0036] 1.1 Two-way slide rail; 1.2 Support beam;

[0037] 3.1 Spreader main beam; 3.2 C-shaped hook; 3.3 Airbag; 3.4 Driving mechanism; 3.5 Active beam; 3.6 Driven beam; 3.7 Vertical motion module; 3.8 Horizontal guide rail; 3.9 Spreader beam assembly. DETAILED DESCRIPTION

[0038] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0039] like Figures 1-8 As shown, a wind turbine blade transfer workstation based on a truss structure and adaptive fitting of airbags includes a support frame 1, a double trolley mechanism 2, a hoist body 3 and a control center (not shown in the figure).

[0040] The support frame 1 comprises two parallel bidirectional slide rails 1.1, on which a support beam 1.2 is slidably mounted. The support frame 1 is mainly used for adjusting the position of the spreader as a whole.

[0041] The double trolley mechanism 2 is relatively arranged on the support beam 1.2 and is used to adjust the distance between the double trolley mechanisms 2 to adapt to different blade widths. It includes two trolleys moving along the support beam 1.2.

[0042] The lower ends of the two trolleys in the double-trolley mechanism are respectively installed with the components of the sling body 3 for clamping the blades. Specifically, the bottom end of the double-trolley mechanism is installed with a suspension mechanism for suspending the sling main beam 3.1. The sling main beam 3.1 is the main force-bearing member of the sling body and is a common beam-box structure. A high-precision industrial barcode scanner (reading distance 0.5-5m, response time <0.1s) is installed on the sling main beam 3.1. It supports QR code and RFID dual-mode recognition and is associated with the blade database. After the control center obtains the data, it calls the blade center of gravity coordinates according to the blade model, calculates the optimal clamping point position of the sling body, and forms an execution instruction to drive each moving part to work and move the sling body to the corresponding coordinates.

[0043] The components of the sling body include several C-shaped hooks 3.2 arranged in a straight line and equipped with air bags 3.3. The air bags 3.3 in each C-shaped hook 3.2 can be independently controlled to be inflated and deflated, and are used to adjust the inflation degree of each air bag according to the contour of the blade lifting position so as to fit the curved surface characteristics of the blade.

[0044] Specifically, the core of this structure is the structure of the C-type hook 3.2 as the frame, which provides sufficient rigid support for the airbag 3.3. The blades are clamped and released by inflating and deflating the airbag. Due to the compressibility of the gas, the contact surface between the hoist and the wind turbine blade is flexible, achieving adaptive fit to the curved surface characteristics of the wind turbine blade. During the hoisting process, it can adapt to blades of various models without manual adjustment, realizing the function of automatically adapting to the blade surface parameters.

[0045] To ensure the airbag's strength and protect it from damage caused by excessive pressure, the airbag's contact module utilizes a multi-layer composite structure. The outer layer is a wear-resistant woven polyurethane aramid fiber layer, the middle layer is a honeycomb silicone cushioning layer, and the inner layer is a butyl rubber airtight layer. Furthermore, a rubberized anti-slip matrix tape is added to the outermost wear-resistant layer to provide sufficient friction.

[0046] The main body of the spreader is divided into several independent C-shaped hooks and air chamber units along the length of the blade, and each unit is equipped with an independent air valve and pressure sensor. The entire pneumatic system adopts a gradient charging strategy, and the initial charging pressure is 0.3MPa → gradually increased to the working pressure after loading to avoid instantaneous overload. The pneumatic control system is to install a piezoresistive flexible sensor array on the airbag to detect the pressure of the airbag area in real time, and use the PID algorithm to adjust the pressure of each air chamber in real time to achieve dynamic pressure regulation, ensuring the uniformity deviation of the target pressure of a single air chamber. In addition, it is equipped with an emergency pressure relief mechanism. When the pressure exceeds 1.2 times the threshold, the solenoid valve opens for emergency pressure relief. The expansion of the airbag at the end of the gripper is precisely controlled by a proportional valve.

[0047] The components of the spreader body 3 also include a driving mechanism 3.4, an active beam 3.5 and an independent driven module. The spreader main beam 3.1 is installed at the lower end of the trolley and serves as the installation base of the driving mechanism 3.4 and the active beam 3.5.

[0048] The drive mechanism is composed of a reduction motor, a driving wheel, a chain, a driven wheel, a ball screw, a screw nut, a coupling, a driven shaft, a driven wheel and other structures. The screw nut is installed on the main beam of the spreader, and other structures are installed on the active beam 3.5. This enables the ability to fine-tune the active beam 3.5 based on the spreader main beam 3.1. The independent driven module is installed on the active beam 3.5 and is adjusted together with the active beam 3.5.

[0049] The independent driven module includes a driven beam 3.6, a vertical motion module 3.7, a horizontal guide rail 3.8 and a suspension beam assembly 3.9. The horizontal guide rail 3.8 is divided into two sections and is arranged at both ends of the driven beam 3.6 for horizontal fine-tuning of the suspension position. Its movement is driven by an independent transmission plate.

[0050] A set of vertical motion modules 3.7 is installed on each horizontal guide rail 3.8. The vertical motion modules 3.7 are hydraulic cylinders. The bottom end of each vertical motion module 3.7 is connected to a set of hanging beam assemblies 3.9. The two sets of hanging beam assemblies 3.9 are respectively connected to the front and rear of the C-shaped hook. The two sets of vertical motion modules work together to adjust the height and inclination angle of the C-shaped hook.

[0051] Its working principle is that the vertical drive hydraulic cylinder can achieve precise control of the vertical height and inclination angle of the individual C-hook below in the main beam structure, while the horizontal guide rail is driven by the transmission plate to achieve precise control of the displacement of the vertical motion module in the direction of the main beam. The flexible rope structure below is used to connect the C-hook. A single C-hook has four lifting points, which are controlled by two independent vertical motion modules. The vertical displacement of the C-hook is achieved by controlling the synchronous movement of the two independent vertical motion modules, and the inclination angle of the C-hook is controlled by controlling the asynchronous movement of the two vertical motion modules.

[0052] The control center is used for the specific control of each of the above-mentioned action processes.

[0053] The workstation can adjust the contact pressure according to the blade surface, flexibly adjust the lifting parameters according to the blade model, use the airbag structure to reduce blade damage, provide an emergency pressure relief mechanism, and ensure lifting safety. Compared with traditional lifting equipment, it has better application prospects.

[0054] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A wind turbine blade transfer workstation based on a truss structure and airbag adaptive bonding, characterized by: It includes support frame, double trolley mechanism, spreader body and control center; The support frame includes two parallel bidirectional slide rails, and a support beam is slidably mounted on the bidirectional slide rails; The double trolley mechanisms are relatively arranged on the support beam frame, and are used to adjust the distance between the double trolley mechanisms to adapt to different blade widths; The lower ends of the two trolleys in the double trolley mechanism are respectively installed with components of the sling body for clamping blades; The main body of the sling comprises a plurality of C-shaped hooks arranged in a straight line and equipped with airbags. The airbags in each C-shaped hook can be independently controlled to be inflated and deflated, and are used to adjust the inflation level of each airbag according to the contour of the blade hoisting position so as to conform to the curved surface characteristics of the blade. The control center is used to control the working status of the double trolley mechanism and the spreader body.

2. The wind turbine blade transfer workstation based on the adaptive bonding of the truss structure and the airbag according to claim 1 is characterized by: The contact surface of the airbag is a multi-layer composite structure, including an outer layer, a middle layer and an inner layer. The outer layer is a wear-resistant layer, the middle layer is a buffer layer, and the inner layer is a sealing layer.

3. The wind turbine blade transfer workstation based on the adaptive bonding of the truss structure and the airbag according to claim 2 is characterized by: The outer layer is made of a polyurethane aramid fiber braided wear-resistant layer.

4. The wind turbine blade transfer workstation based on the adaptive bonding of the truss structure and the airbag according to claim 2 is characterized by: The middle layer is made of a honeycomb silicone buffer layer.

5. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 2 is characterized by: The inner layer is a butyl rubber airtight layer.

6. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 2 is characterized by: The surface of the outer layer is provided with anti-skid rubber bumps arranged in a matrix.

7. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 1 is characterized by: Each airbag is equipped with an independent air valve and pressure sensor. A proportional valve for controlling the output ratio and a pressure relief path for ensuring safety are set in the air circuit for providing air pressure.

8. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 1 is characterized by: An industrial barcode scanner is installed on the sling body to read the electronic code image on the blade to obtain the parameter information of the blade; the control center outputs corresponding control parameters based on the parameter information of the blade to adjust the position of the sling body and the inflation degree of the airbag.

9. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 1 is characterized by: The components of the sling body also include a sling main beam, a driving mechanism, an active beam and an independent driven module. The sling main beam is installed at the lower end of the trolley and serves as the installation base of the driving mechanism and the active beam; the driving mechanism drives the active beam to make fine adjustments based on the sling main beam through a chain and a screw assembly; the independent driven module is installed on the active beam and is used to fine-tune the height, inclination and horizontal position of the C-shaped hook.

10. The wind turbine blade transfer workstation based on adaptive bonding of truss structure and airbag according to claim 9 is characterized in that: The independent driven module includes a driven beam, a vertical motion module, a horizontal guide rail and a hanging beam assembly. The horizontal guide rail is divided into two sections and is arranged at both ends of the driven beam for horizontal fine-tuning of the suspension position. A set of vertical motion modules is installed on each horizontal guide rail. The bottom end of each vertical motion module is connected to a set of hanging beam assemblies. The two sets of hanging beam assemblies are respectively connected to the front and rear of the C-shaped hook. The two sets of vertical motion modules work together to adjust the height and inclination of the C-shaped hook.

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