Wind power blade main beam chordwise positioning tool

Abstract

The utility model relates to the technical field of wind power blade manufacturing, in particular to a wind power blade main beam chordwise positioning tool which comprises a shell, a base, a PLC control system, a laser positioning system and a stepping motor system, one end of the shell is installed on the base, and the other end of the shell is provided with the laser positioning system. The laser positioning system is used for emitting laser rays to irradiate a main beam and then receiving and processing reflected positioning information, the stepping motor system is used for adjusting the angle of the laser rays of the laser positioning system, and the PLC control system is electrically connected with the laser positioning system and the stepping motor system and used for collecting, analyzing and processing data of the laser positioning system. By means of the tool, the automation degree of the blade manufacturing process can be improved, the intelligent blade manufacturing process can be explored easily, the number of operators of the main beam positioning tool is reduced, and the laying time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade manufacturing, in particular to a chord-wise positioning tool for a main beam of a wind turbine blade. Background Art

[0002] Wind turbine blades are composed of upper and lower shells, main beams, webs and other components. The main beam is the most important load-bearing component, which must resist the tensile and compressive stresses of the swinging moment. The main beam needs to be laid in the specified position according to the design requirements. The deviation of the main beam position will lead to a decrease in blade stiffness and stability, and even cause the entire blade structure to fail. In view of the impact of main beam positioning on blade quality, all manufacturers use positioning tools to position the main beam during the blade manufacturing process.

[0003] The main beam positioning tool in the prior art, such as the adjustable wind turbine blade main beam laying position positioning tool with publication number CN204487411U, and the adjustable wind turbine blade main beam positioning tool and positioning method with publication number CN106272151B, during the blade shell laying process, workers need to place the main beam chord-wise positioning tool on the shell in advance when laying the main beam. Improper operation of the iron tool will damage and contaminate the fabric layer; if the tool locking buckle is loose, the positioning function of the tool will fail, resulting in the main beam chord-wise laying position being out of tolerance, affecting the overall performance and quality of the blade; in addition, placing the tool takes a certain amount of time, which will extend the shell process laying time. Utility Model Content

[0004] In order to solve the above-mentioned technical problems of reducing the main beam laying time, improving the shell laying efficiency, and reducing the cumulative error of tooling calibration, the utility model provides a main beam chord-wise positioning tooling equipment with a very high degree of automation, so as to simplify the positioning work when laying the main beam, improve the main beam positioning quality, shell laying efficiency and reduce errors.

[0005] This is achieved through the following technical solutions:

[0006] A wind turbine blade main beam chord-wise positioning tool comprises a shell, a base, a PLC control system, a laser positioning system and a stepper motor system. One end of the shell is mounted on the base, and the laser positioning system is mounted on the other end of the shell. The laser positioning system is used to emit laser light to illuminate the main beam and receive and process the positioning information reflected back. The stepper motor system is used to adjust the laser light angle of the laser positioning system. The PLC control system is electrically connected to the laser positioning system and the stepper motor system respectively, and is used to collect, analyze and process data of the laser positioning system, and control the stepper motor system to adjust the laser light angle of the laser positioning system.

[0007] Further preferably, the shell includes a vertical shell 1, a transverse shell and a vertical shell 2 which are vertically connected in sequence, the vertical shell 1 is vertically installed on the base, the transverse shell is horizontally installed on the top of the vertical shell 1, and the vertical shell 2 is vertically installed upward at the other end of the transverse shell.

[0008] Further preferably, the laser positioning system includes a laser locator and a positioning sensor, which are installed on the second vertical shell. The laser locator emits a laser optical fiber which shines on the main beam and is then reflected to the positioning sensor to receive the positioning information, and the processed information is converted and transmitted to the PLC control system.

[0009] Further preferably, the stepper motor system includes a stepper motor and a chain drive wheel, the chain drive wheel includes a driving sprocket, a driven sprocket, and a chain wound around the driving sprocket and the driven sprocket, the output end of the stepper motor is connected to the driving sprocket, and the laser positioning system is installed at the other end of the rotating shaft of the driven sprocket.

[0010] Further preferably, the stepper motor and the chain drive wheel of the stepper motor system are both installed in the housing, and the stepper motor is electrically connected to the PLC control system.

[0011] Further preferably, the tooling also includes a leveling system, which is disposed at the bottom of the base, and includes a plurality of leveling angle spirals and vertical angle spirals.

[0012] Further preferably, a cross centering eyepiece is provided on the transverse shell of the outer shell, which cooperates with the cross lines engraved on the mold boss to adjust the overall flatness of the tooling.

[0013] Beneficial effects of the utility model:

[0014] 1) The utility model improves the automation level of the blade manufacturing process by using a PLC control system, a micro-stepping motor system and a laser positioning system in combination, which helps to explore the intelligent manufacturing process of the blade.

[0015] 2) The tooling of the utility model can reduce the number of operators of the main beam positioning tooling and improve the laying time; it can solve the problems of tooling wear caused by long-term use of the positioning tooling, accumulated errors and human defects caused by untimely tooling verification.

[0016] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1The utility model is a structural schematic diagram of a wind turbine blade main beam chord-wise positioning tool.

[0019] 1-base, 2-shell, 21-vertical shell one, 22-horizontal shell, 23-vertical shell two, 3-PLC control system, 4-stepping motor system, 41-stepping motor, 42-chain transmission wheel, 5-laser positioning system, 51-laser light, 6-leveling system, 7-mold, 8-main beam, 9-mold boss, 10-cross centering eyepiece. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] A wind turbine blade main beam chord-wise positioning tool comprises a shell 2, a base 1, a PLC control system 3, a laser positioning system 5 and a stepper motor system 4. One end of the shell 2 is mounted on the base 1, and the other end of the shell 2 is mounted with the laser positioning system 5. The laser positioning system 5 comprises a laser positioning instrument and a positioning sensor. The laser positioning instrument emits a laser light 51 which is irradiated on the main beam 8 and then reflected to the positioning sensor to receive positioning information. The stepper motor system 4 is used to adjust the angle of the laser light 51 of the laser positioning instrument in the laser positioning system 5, so as to accurately position the main beam 8 on the lower mold 7. The PLC control system 3 is electrically connected to the laser positioning system 5 and the stepper motor system 4 respectively, and is used to collect, analyze and process the data of the laser positioning system 5, and control the stepper motor system 4 to adjust the angle of the laser light 51 of the laser positioning system 5.

[0022] The outer shell 2 preferably has three sections, which are vertical shell 1 21, transverse shell 22 and vertical shell 23, in sequence. The vertical shell 1 21 is vertically installed on the base 1, and the transverse shell 22 is horizontally installed on the top of the vertical shell 1 21. The vertical shell 1 21 and the transverse shell 22 are installed around the side and top of the mold 7. The vertical shell 23 is vertically installed upward at the other end of the transverse shell 22. The other end of the vertical shell 23 is provided with a laser locator and a positioning sensor. The laser locator and the positioning sensor are existing technologies and have a signal conversion module, a control panel and accessories, etc. Preferably, the PLC control system 3 is installed on the vertical shell 1 21, and the stepper motor system 4 is installed in the outer shell 2.

[0023] The laser locator emits a high-energy, high-brightness, high-monochromatic laser beam through a laser transmitter, and projects the laser beam onto the surface of one end of the main beam 8 of the object to be measured. The laser light 51 is reflected by the surface of the main beam 8, and the reflected light signal is received by the positioning sensor. After the positioning sensor receives the light signal, it converts it into an electrical signal through a signal conversion module and transmits it to the signal processor. The signal processor converts the electrical signal into a digital signal and transmits it to the PLC control system 3 for analysis and processing. The position of the target part of the main beam 8 is determined by the laser locator, and then the PLC control system 3 feeds back to the laser positioning system 5 for subsequent positioning measurement to achieve the purpose of precise positioning. The laser locator can use laser technology to achieve a high-precision and non-contact positioning method.

[0024] The stepper motor system 4 is preferably a micro-stepper motor system 4, including a stepper motor 41, a motor circuit and an information transmission circuit connecting the stepper motor 41 and the PLC control system 3, a chain drive wheel 42 and a motor system housing, etc. The stepper motor 41 and the chain drive wheel 42 are both prior art and will not be described here. The output end of the stepper motor 41 is connected to the chain drive wheel 42, and the chain drive of the chain drive wheel 42 is composed of a driving sprocket, a driven sprocket and a chain wound around the sprocket mounted on parallel shafts. According to actual conditions, an intermediate transmission sprocket can be added between the driving sprocket and the driven sprocket. When working, the driven wheel is driven to rotate and transmit motion and power by the meshing of the chain links and the sprocket teeth. A laser locator is installed at the other end of the rotating shaft where the driven sprocket is installed, so that the stepper motor 41 adjusts the laser emission angle of the rotating laser locator through the chain drive wheel 42 to position and calibrate the main beam 8 below.

[0025] The PLC control system 3 is preferably a small integrated PLC control system 3, including a power supply, a microprocessor CPU, a memory component, and input and output components, etc. The microprocessor CPU is the core component of the PLC. The CPU varies from manufacturer to manufacturer. Some use standard chips sold on the market, while others use programmable controller-specific chips. There are two types of memory components: ROM and RAM. The input and output components are interfaces for exchanging data between the PLC and the industrial production site. Unlike ordinary computers, the working environment of the PLC is relatively poor and requires strong anti-interference capabilities. The input and output components are designed for this purpose.

[0026] The internal working mode of PLC generally adopts the cyclic scanning working mode. When the user completes the debugging of the user program, the program is written into the PLC memory through the programmer. At the same time, the input signal of the laser positioning system 5 and the stepper motor system 4 are correspondingly connected to the input end of the input module and the output end of the output module. Then the PLC working mode is selected as the running working mode, and the subsequent work is completed by the PLC according to the user program.

[0027] The tooling can also include a leveling system 6, which is arranged at the bottom of the base 1. The leveling system 6 includes a plurality of leveling angle spirals and vertical angle spirals, etc. The base 1 is adjusted to be horizontal through the leveling system 6. Preferably, a cross centering eyepiece 10 is provided on the transverse shell 22 of the outer shell 2, which cooperates with the cross lines engraved on the mold boss 9 of the mold 7 to adjust the overall flatness of the tooling.

[0028] The utility model tooling equipment is mainly composed of four parts: a small integrated PLC control system 3, a micro stepping motor system 4 (including a chain drive wheel 42), a laser positioning system 5 and a leveling system 6. The specific operations of each part of the tooling are as follows:

[0029] Leveling system 6: After the tooling is installed on the base 1, the fine-tuning knobs such as the leveling screw and the angle screw can be used to initially level the entire device, replacing the level ruler and plumb bob used for manual positioning. In addition, combined with the cross-centering eyepiece 10, align the crosshairs engraved on the mold boss 9 to ensure the overall leveling of the device;

[0030] Laser positioning system 5: When the main beam 8 is manually positioned by the laser positioning instrument combined with the positioning sensor, the positioning data is measured multiple times, and these data are stored and compared with the chord-wise design positioning data of the main beam 8 to simulate the subsequent automatic positioning data, reduce the cumulative error, and eliminate the manual calibration process;

[0031] Micro stepper motor system 4: according to the signal feedback of PLC control system 3, control the stepper motor 41 to drive the laser positioning system 5 to rotate the laser system lens;

[0032] Small integrated PLC control system 3: measures and collects data from the laser positioning device, analyzes the data, and feeds it back to the laser positioning system 5 for subsequent positioning measurement.

[0033] The utility model provides a main beam chord-wise positioning tool, which can reduce extensive manual operations during layer laying, improve the layer laying efficiency of the shell process, and enhance the degree of automation in blade manufacturing.

[0034] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A wind turbine blade main beam chord-wise positioning tool, characterized in that: The invention comprises a housing (2), a base (1), a PLC control system (3), a laser positioning system (5) and a stepping motor system (4), wherein one end of the housing (2) is mounted on the base (1), and the laser positioning system (5) is mounted on the other end of the housing (2), the laser positioning system (5) is used to emit laser light to illuminate the main beam, and receive and process the reflected positioning information, the stepping motor system (4) is used to adjust the laser light angle of the laser positioning system (5), and the PLC control system (3) is electrically connected to the laser positioning system (5) and the stepping motor system (4) respectively, and is used to collect, analyze and process the data of the laser positioning system (5), and control the stepping motor system (4) to adjust the laser light angle of the laser positioning system (5).

2. The wind turbine blade main beam chord-wise positioning tool according to claim 1, characterized in that: The housing (2) comprises a vertical housing (21), a horizontal housing (22) and a vertical housing (23) which are connected vertically in sequence, wherein the vertical housing (21) is vertically mounted on the base (1), the horizontal housing (22) is horizontally mounted on the top of the vertical housing (21), and the vertical housing (23) is vertically mounted upward at the other end of the horizontal housing (22).

3. A wind turbine blade main beam chord-wise positioning tool according to claim 2, characterized in that: The laser positioning system (5) comprises a laser positioning device and a positioning sensor, which are mounted on the second vertical shell (23). The laser positioning device emits laser light which is then reflected on the main beam and received by the positioning sensor. The information is then processed and converted and transmitted to the PLC control system (3).

4. The wind turbine blade main beam chord-wise positioning tool according to claim 1, characterized in that: The stepper motor system (4) comprises a stepper motor (41) and a chain transmission wheel (42), wherein the chain transmission wheel (42) comprises a driving sprocket, a driven sprocket, and a chain wound around the driving sprocket and the driven sprocket, the output end of the stepper motor (41) is connected to the driving sprocket, and the laser positioning system (5) is installed at the other end of the rotating shaft of the driven sprocket.

5. The wind turbine blade main beam chord-wise positioning tool according to claim 4, characterized in that: The stepper motor (41) and the chain drive wheel (42) of the stepper motor system (4) are both installed in the housing (2), and the stepper motor (41) is electrically connected to the PLC control system (3).

6. The wind turbine blade main beam chord-wise positioning tool according to claim 1, characterized in that: The tooling also includes a leveling system (6), which is arranged at the bottom of the base (1), and the leveling system (6) includes a plurality of leveling angle spirals and vertical angle spirals.

7. The wind turbine blade main beam chord-wise positioning tool according to claim 2, characterized in that: A cross-centering eyepiece (10) is provided on the transverse shell (22) of the outer shell (2) and cooperates with the cross lines engraved on the mold boss to adjust the overall flatness of the tooling.

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