Assembly Equipment for Sectional Blades of a Wind Turbine

Abstract

An embodiment of the present application provides an assembly device for a segmented blade of a fan. The assembly device includes a first tooling, a docking tooling, a fourth tooling, and a positioning device. The first tooling is used to support the rear end of the root section and provide adjustment for the root section to rotate around the axial direction of the blade. The docking tooling is used for the docking and assembly of the front end of the root section and the rear end of the tip section. The docking tooling includes an assembly platform and a second tooling and a third tooling arranged on the assembly platform. The second tooling is used to flexibly support the front end of the root section and provide fine adjustment for the root section to rotate around the axial direction of the blade and overturn around the chord direction of the blade. The third tooling is used to support the rear end of the tip section, and the third tooling has multiple degrees of freedom on the assembly platform to provide multiple degrees of freedom adjustment for the tip section. The fourth tooling is used to flexibly support the front end of the tip section. The positioning device is arranged on the docking tooling and is used for precise positioning during the docking process of the root section and the tip section.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of fans, and in particular, to an assembly device for segmented blades of a fan. Background Art

[0002] With the gradual depletion of energy sources such as coal and oil, humans have increasingly paid attention to the utilization of renewable energy. As a clean renewable energy, wind energy has been increasingly emphasized by countries around the world. Along with the continuous development of wind power technology, the application of fans in the power system has been increasing.

[0003] The blade is an important component in a fan. In recent years, along with the continuous improvement of the power generation capacity of fans, the required length of the blades has become longer and longer. Ultra-long blades pose great challenges to production and manufacturing plants, production and manufacturing costs, transportation environments, and transportation costs. To reduce the requirements for production and transportation environments and reduce production and transportation costs, segmented blades of fans have emerged. However, due to the uncertainty of wind farm conditions, the ground is usually uneven, and it is difficult to find a flat ground for the docking and assembly of large segmented blades of fans. Moreover, since the outer surface of the fan blade is usually an irregular curved surface, precise positioning during the docking and assembly of segmented blades of fans is another major challenge faced. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an assembly device for segmented blades of a fan, which can achieve precise docking and assembly of segmented blades of a fan.

[0005] One aspect of the embodiments of the present application provides an assembly device for segmented blades of a fan. The blade includes a root section and a tip section. The root section includes a front end close to the tip section and a rear end far from the tip section, and the tip section includes a front end far from the root section and a rear end close to the root section. The assembly device for segmented blades of the fan includes a first tooling, a docking tooling, a fourth tooling, and a positioning device. The first tooling is used to support the rear end of the root section and provide adjustment for the root section to rotate around the axial direction of the blade. The docking tooling is used for the docking and assembly of the front end of the root section and the rear end of the tip section. The docking tooling includes an assembly platform and a second tooling and a third tooling arranged on the assembly platform. The second tooling is used to flexibly support the front end of the root section and provide fine adjustment for the root section to rotate around the axial direction of the blade and overturn around the chordal direction of the blade. The third tooling is used to support the rear end of the tip section, and the third tooling has multiple degrees of freedom on the assembly platform to provide multiple degrees of freedom adjustment for the tip section. The fourth tooling is used to flexibly support the front end of the tip section. The positioning device is arranged on the docking tooling and is used for precise positioning during the docking process of the root section and the tip section.

[0006] The assembly device for the segmented blades of a wind turbine according to the embodiments of the present application is applicable to the butt joint assembly of the segmented blades of a wind turbine in a wind farm environment, and can give play to the transportation cost advantage of the segmented blades; the assembly device for the segmented blades of a wind turbine according to the embodiments of the present application has complete functions and a simple structure, can achieve the precise butt joint of the segmented blades, has good butt joint efficiency and environmental adaptability, and has good versatility and popularization, and can effectively guarantee and promote the commercialization and mass production of the manufacturing and assembly of the segmented blades. Description of the Drawings

[0007] Figure 1 It is a three-dimensional schematic diagram of a segmented blade of a wind turbine;

[0008] Figure 2 It is a general schematic diagram of the assembly device for the segmented blades of a wind turbine according to an embodiment of the present application;

[0009] Figure 3 It is a three-dimensional schematic diagram of the first tooling according to an embodiment of the present application;

[0010] Figure 4 It is a three-dimensional schematic diagram of the butt joint tooling according to an embodiment of the present application;

[0011] Figure 5 It is a three-dimensional schematic diagram of the second tooling according to an embodiment of the present application;

[0012] Figure 6 It is Figure 5 The three-dimensional schematic diagram of the second tooling in after removing the first support seat;

[0013] Figure 7 It is a three-dimensional schematic diagram of the third tooling according to an embodiment of the present application;

[0014] Figure 8 It is a partial three-dimensional schematic diagram of the assembly platform according to an embodiment of the present application;

[0015] Figure 9 It is a three-dimensional schematic diagram of the fourth tooling according to an embodiment of the present application. Detailed Embodiments

[0016] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0017] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those of ordinary skill in the field to which the present application pertains. The terms "first", "second" and similar words used in the specification and claims of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Plural" or "several" means two or more. Unless otherwise indicated, words such as "front", "rear", "lower" and / or "upper" are for convenience of description only and are not limited to one position or a spatial orientation. Words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of the present application are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0018] The embodiment of the present application provides an assembly device for a segmented blade of a fan. Figure 1 Disclosed is a three-dimensional schematic diagram of a segmented blade of a fan. As Figure 1 shown, the segmented blade of the fan at least includes a first blade segment and a second blade segment. In one embodiment, the fan blade is divided into two segments. The first blade segment includes a root segment 6, and the second blade segment includes a tip segment 7. The so-called root segment 6 refers to the segment where the root for connecting the fan hub is located, and the so-called tip segment 7 refers to the segment where the tip farthest from the root is located. After the root segment 6 and the tip segment 7 are butt-assembled, a complete fan blade can be formed. Hereinafter, the assembly device for the segmented blade of the fan in the embodiment of the present application will be described in detail by taking the segmented blade of the fan including the root segment 6 and the tip segment 7 as an example.

[0019] In Figure 1 it, the axial direction of the blade is defined as the X-axis direction, the chord direction of the blade is defined as the Y-axis direction, and the direction perpendicular to the plane formed by the axial direction of the blade and the chord direction of the blade is defined as the Z-axis direction.

[0020] Figure 2 Disclosed is a general schematic diagram of the assembly device for the segmented blade of the fan in an embodiment of the present application. AsFigure 2 As shown in the figure, the assembly equipment for the segmented blades of a fan according to an embodiment of the present application includes a first tooling 1, a docking tooling, and a fourth tooling 4. The first tooling 1 is located at the rear end of the root section 6 of the blade, and can be used to support the rear end of the root section 6 and provide adjustment for the root section 6 to rotate around the axial direction of the blade (i.e., the X-axis direction). The docking tooling is used for the docking and assembly of the front end of the root section 6 and the rear end of the tip section 7. The docking tooling includes an assembly platform 5 and a second tooling 2 and a third tooling 3 arranged on the assembly platform 5. The second tooling 2, the third tooling 3, and the assembly platform 5 are actually assembled into one body. The second tooling 2 is located at the front end of the root section 6, and can be used to flexibly support the front end of the root section 6 and provide fine adjustment for the root section 6 to rotate around the axial direction of the blade (i.e., the X-axis direction) and overturning rotation around the chord direction of the blade (i.e., the Y-axis direction). The first tooling 1 and the second tooling 2 are aligned in the axial direction (X-axis direction) of the blade. The third tooling 3 is located at the rear end of the tip section 7, and can be used to support the rear end of the tip section 7. Moreover, the third tooling 3 has multiple degrees of freedom on the assembly platform 5 to provide multiple degrees of freedom adjustment for the tip section 7. The fourth tooling 4 is located at the front end of the tip section 7, and can be used to flexibly support the front end of the tip section 7.

[0021] The first tooling 1, the second tooling 2, the third tooling 3, and the fourth tooling 4 should be simultaneously in the axial direction of the blade when assembling the blade.

[0022] The assembly equipment for the segmented blades of a fan according to an embodiment of the present application further includes a positioning device. The positioning device is arranged on the docking tooling and can be used for precise positioning during the docking process of the root section 6 and the tip section 7.

[0023] The assembly equipment for the segmented blades of a fan according to an embodiment of the present application is applicable to the docking and assembly of the segmented blades of a fan in a wind farm environment, and can give play to the transportation cost advantage of the segmented blades; the assembly equipment for the segmented blades of a fan according to an embodiment of the present application has complete functions and a simple structure, can realize the precise docking of the segmented blades, has good docking efficiency and environmental adaptability, and has good versatility and popularization, and can effectively guarantee and promote the commercialization and mass production of the manufacturing and assembly of the segmented blades.

[0024] The first tooling 1 is separately located on the ground. Figure 3 The three-dimensional schematic diagram of the first tooling 1 according to an embodiment of the present application is revealed. As Figure 3As shown, in one embodiment, the first tooling 1 may adopt a root roller flipping device. The first tooling 1 may include a support base 106, a pair of roller frames 102, and a pair of rollers 101 provided on each roller frame 102. The pair of roller frames 102 are provided at opposite ends of the support base 106 along the chord direction of the blade. Each roller frame 102 is rotatably mounted on the support base 106 through a shaft 103, and the pair of roller frames 102 can rotate around the axial direction of the blade. The pair of rollers 101 on each roller frame 102 are respectively located on opposite sides of the shaft 103, and the two rollers 101 on each roller frame 102 are respectively used to contact the root section 6.

[0025] In one embodiment, a pair of first motors 104 are provided on the support base 106. The pair of first motors 104 can be respectively used to drive the pair of roller frames 102 to rotate synchronously. The first tooling 1 drives the roller frames 102 through the first motors 104 to drive the rollers 101 to rotate synchronously, providing the power for the root section 6 to rotate around the axial direction (X-axis direction) of the blade, so as to drive the overall rotation of the root section 6.

[0026] A plurality of rotating wheels 107 for support are provided at the bottom of the support base 106, so that the position of the first tooling 1 can be adjusted according to the actual situation. The rotating wheels 107 may include universal wheels.

[0027] Figure 4 A three-dimensional schematic diagram of the docking tooling according to an embodiment of the present application is disclosed. As Figure 4 shown, in some embodiments, the assembly platform 5 may include a first platform 510 and a second platform 520, and a lifting device is connected between the first platform 510 and the second platform 520. In one embodiment, a plurality of hydraulic lifting devices 53 may be connected between the first platform 510 and the second platform 520. The hydraulic lifting device 53 may include, for example, a rodless cavity 531 provided on the first platform 510 and a rod cavity 530 provided on the second platform 520. The rod cavity 530 can perform telescopic movement along the Z-axis direction in the rodless cavity 531. The second platform 520 is located on the tip side of the first platform 510. The second tooling 2 is provided on the root side of the first platform 510, and the third tooling 3 is provided on the second platform 520.

[0028] At the bottom of the first platform 510, there are first driving wheels. There are four first driving wheels, namely, a pair of driving front wheels 512 and a pair of driving rear wheels 511. The first driving wheels can be selected as Mecanum wheels (omni-wheels) for example, so as to provide the assembly platform 5 with the ability to move in multiple directions within a plane. In addition, since the wind farm site is usually uneven, in order to ensure that the four first driving wheels are in contact with the ground at the same time, a certain suspension floating ability is required. Therefore, a pair of driving front wheels 512 are fixedly connected to the frame of the first platform 510, and a pair of driving rear wheels 511 are floatingly installed on the frame of the first platform 510, thus forming a three-point support form. The first platform 510 is also provided with a parking support leg (not shown) for fixing. After the first platform 510 is adjusted, the parking support leg can be used to assist in fixing the positioning of the first platform 510.

[0029] Figure 5 A perspective view of the second tooling 2 according to an embodiment of the present application is disclosed. Figure 6 Disclosed Figure 5 A perspective view of the second tooling 2 in [reference] after removing the first support seat 205. With reference to Figure 5 and Figure 6 As shown, in some embodiments, the second tooling 2 can adopt a clamp-type tooling with a flipping function. The second tooling 2 includes a first clamping mechanism for clamping the blade root section 6, and the first clamping mechanism has a joint surface matching the outer contour of the blade root section 6.

[0030] In some embodiments, the first clamping mechanism of the second tooling 2 may include a first lower clamp 202 and a first upper clamp 201. The first lower clamp 202 and the first upper clamp 201 are cooperatively installed to clamp and fix the blade root section 6. Among them, the first lower clamp 202 has a shape matching the outer contour of the lower surface of the blade root section 6, and the first upper clamp 201 has a shape matching the outer contour of the upper surface of the blade root section 6. First connecting ears 213 are respectively provided around the first lower clamp 202 and the first upper clamp 201, and the first connecting ears 213 around the first lower clamp 202 and the first upper clamp 201 are connected and clamped through bolt structures, so as to ensure the positioning of the first upper clamp 201 relative to the blade root section 6.

[0031] The second tooling 2 further includes a first positioning baffle 200 for axial positioning. A first positioning groove 208 is formed in the first lower clamp 202, and the first positioning baffle 200 is detachably installed in the first positioning groove 208.

[0032] The second tooling fixture 2 further includes a base 204. A first support rod 209 is provided on the base 204. A first fixture support 203 is provided at the bottom of the first lower-side fixture 202. The first fixture support 203 is mounted on the first support rod 209. Moreover, the first fixture support 203 can rotate around the first support rod 209 to drive the first lower-side fixture 202 to overturn and rotate around the chord direction (Y-axis direction) of the blade. Thus, the installation flexibility of the first lower-side fixture 202 of the second tooling fixture 2 can be improved to meet the inclination change requirements of the blade root section 6 around the Y-axis direction.

[0033] The second tooling fixture 2 further includes a first support base 205. In one embodiment, the base 204 is, for example, an arc-shaped base 204, and the arc-shaped base 204 can rotate around the axial direction (X-axis direction) of the blade on the first support base 205. Therefore, when the rear end of the blade root section 6 is driven to rotate, the front end of the blade root section 6 can follow the rear end of the blade root section 6 to rotate around the axial direction (X-axis direction) of the blade, and corresponding support and protection are provided by the second tooling fixture 2.

[0034] In some embodiments, a second motor 212 and a main gear 215 are provided on the first support base 205, and a semi-circular gear disk 211 meshing with the main gear 215 is provided on the arc-shaped base 204. The second motor 212 can be used to drive the main gear 215 to rotate to drive the semi-circular gear disk 211 and the arc-shaped base 204 to rotate around the axial direction (X-axis direction) of the blade. Thus, the blade root section 6 can be rotated synchronously with the first tooling fixture 1 by controlling the second motor 212.

[0035] A pair of support gears 214 meshing with the semi-circular gear disk 211 are also provided on the first support base 205. The pair of support gears 214 are respectively located on the opposite sides of the main gear 215 and are used to assist in supporting and fixing the arc-shaped base 204.

[0036] A pair of limit blocks 210 are further provided on the arc-shaped base 204. The limit blocks 210 are located at the opposite ends of the semi-circular gear disk 211. During the rotation of the arc-shaped base 204, the limit blocks 210 can be limited and blocked by the first support base 205, so that the rotation of the arc-shaped base 204 can be limited.

[0037] Figure 7 The three-dimensional schematic diagram of the third tooling fixture 3 according to an embodiment of the present application is disclosed. As Figure 4 shown, in some embodiments, the third tooling fixture 3 can adopt a multi-degree-of-freedom adjustable fixture-type tooling fixture. The third tooling fixture 3 includes a second clamping mechanism for clamping the blade tip section 7, and the second clamping mechanism has a joint surface matching the outer contour of the blade tip section 7.

[0038] In some embodiments, the second clamping mechanism of the third tooling fixture 3 may include a second lower-side fixture 302 and a second upper-side fixture 301. The second lower-side fixture 302 and the second upper-side fixture 301 are cooperatively installed to clamp and fix the blade tip segment 7. Among them, the second lower-side fixture 302 has a shape matching the outer contour of the lower surface of the blade tip segment 7, and the second upper-side fixture 301 has a shape matching the outer contour of the upper surface of the blade tip segment 7. Second connecting lugs 319 are respectively provided around the second lower-side fixture 302 and the second upper-side fixture 301. The second connecting lugs 319 around the second lower-side fixture 302 and the second upper-side fixture 301 are all connected and clamped through bolt structures, so as to ensure the positioning of the second upper-side fixture 301 relative to the blade tip segment 7.

[0039] The third tooling fixture 3 further includes a second positioning baffle 300 for axial positioning (as Figure 4 shown). A second positioning groove 318 is formed in the second lower-side fixture 302, and the second positioning baffle 300 is detachably installed in the second positioning groove 318.

[0040] The third tooling fixture 3 further includes a second support base 316. A second support rod 303 is provided on the second support base 316. A second fixture support 317 is provided at the bottom of the second lower-side fixture 302. The second fixture support 317 is installed on the second support rod 303, and the second fixture support 317 can rotate around the second support rod 303 to drive the second lower-side fixture 302 to overturn and rotate around the chord direction (Y-axis direction) of the blade.

[0041] The third tooling fixture 3 further includes a third support base 313. A third motor 304 and a first lead screw 315 are provided on the third support base 313. A first threaded slider 314 with an internal thread cooperating with the first lead screw 315 is provided on the second support base 316. The third motor 304 can drive the first lead screw 315 to rotate to drive the first threaded slider 314 to move along the chord direction (Y-axis direction) of the blade.

[0042] Optionally, an I-shaped guide rail 305 is further provided on the third support base 313, and the first threaded slider 314 can linearly move along the I-shaped guide rail 305. The I-shaped guide rail 305 can play a role in guiding and positioning the movement of the first threaded slider 314.

[0043] The third tooling 3 further includes a fourth support base 323. At the top of the fourth support base 323, there is a fourth motor 312 and a worm 307. At the bottom of the third support base 313, there is a worm gear 322 that cooperates with the worm 307. The third motor 304 can drive the worm 307 to rotate, providing driving force to the worm gear 322 to drive the worm gear 322 to rotate in a plane formed by the axial direction (X-axis direction) and the chordal direction (Y-axis direction) of the blade (i.e., around the Z-axis direction). An integral support circular tray 321 is provided on the third support base 313, and the worm gear 322 is installed on the third support base 313 through the support circular tray 321.

[0044] Optionally, a pair of concentric arc-shaped guide rails 308 with limit blocks are further provided at the top of the fourth support base 323, and two sets of arc-shaped sliders 306 are further provided at the bottom of the third support base 313. Each set of arc-shaped sliders 306 includes two. The four arc-shaped sliders 306 are located on opposite sides of the support circular tray 321. The two sets of arc-shaped sliders 306 can respectively perform planar rotational motion along a pair of arc-shaped guide rails 308.

[0045] Figure 8 A partial perspective view of the assembly platform 5 according to an embodiment of the present application is disclosed. With reference to Figure 7 and Figure 8 As shown, a fifth motor 525 and a second lead screw 526 are provided on the second platform 520. At the bottom of the fourth support base 323, there is a second threaded slider 310 with an internal thread that cooperates with the second lead screw 526. The fifth motor 525 can drive the second lead screw 526 to rotate, providing driving force to the second threaded slider 310 to drive the second threaded slider 310 to move along the axial direction (X-axis direction) of the blade. A limit stop block 523 is provided at the end of the second lead screw 526 to limit the sliding of the second threaded slider 310 and prevent the second threaded slider 310 from slipping out of the second lead screw 526.

[0046] Optionally, a pair of linear guide rails 521 are further provided on the second platform 520. The pair of linear guide rails 521 are respectively located on opposite sides of the second lead screw 526. At the bottom of the fourth support base 323, there is a pair of linear sliders 309. The pair of linear sliders 309 can respectively slide on the pair of linear guide rails 521. A limit stop block 522 is provided at the end of the linear guide rail 521 to limit the sliding of the linear slider 309 and prevent the linear slider 309 from slipping out of the linear guide rail 521.

[0047] Optionally, a pair of groove tracks 524 are further provided on the second platform 520. The pair of groove tracks 524 are respectively located on opposite sides of the second lead screw 526. At the bottom of the fourth support base 323, there are two sets of directional wheels 31. The two sets of directional wheels 31 can respectively slide in the pair of groove tracks 524.

[0048] The third tooling 3 of the embodiment of the present application has multiple degrees of freedom, so as to provide adjustment of multiple degrees of freedom for the rear end of the blade tip section 7.

[0049] The fourth tooling 4 is located separately on the ground. Figure 9 A three-dimensional schematic diagram of the fourth tooling 4 of an embodiment of the present application is disclosed. As Figure 9 shown, in some embodiments, the fourth tooling 4 can adopt a gantry lifting tooling, which includes a pair of support legs 402, a gantry 401 and a lifting tooling for lifting the blade tip section 7. The gantry 401 is telescopically arranged in a pair of support legs 402 for adjusting the height of the fourth tooling 4, and the lifting tooling is arranged on the gantry 401.

[0050] The lifting tooling includes a boom 407 and a sling 406 that cooperates with the boom 407 for bundling the blade tip section 7. The height of the boom 407 is adjustable, and the sling 406 passes through the blade tip section 7 and is connected to the boom 407.

[0051] The fourth tooling 4 mainly functions as a flexible support, improves the reliability of the fine adjustment of the third tooling 3, and reduces the influence of the attitude change of the blade tip section 7 caused by the rigid adjustment of the third tooling 3. At the same time, the fourth tooling 4 has a lifting function, so as to adapt to the height difference generated by different pre-bending of different models of blades.

[0052] The lifting tooling further includes a traveling crane 409 arranged on the gantry 401. The boom 407 is connected to the traveling crane 409 through a hook 408, and the traveling crane 409 can move along the chord direction (Y-axis direction) of the blade on the gantry 401.

[0053] The support legs 402 are provided with a sixth motor 403 and a second driving wheel 404. The sixth motor 403 is used to drive the second driving wheel 404 to rotate to drive the fourth tooling 4 to move along the axial direction (X-axis direction) of the blade.

[0054] As Figure 5 and Figure 7 shown, in some embodiments, the positioning device of the embodiment of the present application may include a laser positioning device, and the adjustment data of all the above toolings of the embodiment of the present application can be all based on the feedback of the laser positioning device arranged on the tooling at the docking location. The laser positioning device may include a laser emission and detection device 320 arranged on the second clamping mechanism of the third tooling 3 and laser reflection devices 206, 207 arranged on the first clamping mechanism of the second tooling 2. The laser emission and detection device 320 can be used to emit laser and detect the reflected laser. The laser reflection devices 206, 207 can be used to reflect the laser.

[0055] The laser emission detection device 320 includes one, and the laser reflection devices 206 and 207 include three. The installation position of the laser positioning device is based on the center point of the root circle. In the overall projection view of the blade from the root to the tip, a positioning point of the laser emission detection device 320 is determined, and based on this, the positioning points of the three laser reflection devices 206 and 207 are determined according to the triangular distribution form. The laser emission detection device 320 and the laser reflection devices 206 and 207 are installed opposite to each other. For example, the laser emission detection device 320 can be arranged on the end face of the second upper fixture 301 of the third tooling 3 near the root, and the laser reflection devices 206 and 207 can be arranged on the end face of the first upper fixture 201 of the second tooling 2 near the tip.

[0056] In one embodiment, the protruding length of the middle laser reflection device 206 among the three laser reflection devices 206 and 207 in the axial direction of the blade is greater than that of the other two laser reflection devices 207, and the protruding lengths of the other two laser reflection devices 207 are the same.

[0057] The working principle of the laser positioning device is as follows: The emitter of the laser emission detection device 320 emits a conical range of laser beams in the direction of the root along the X-axis. Since multiple right-angle reflectors are distributed in each of the laser reflection devices 206 and 207, when the laser arrives and undergoes three reflections, it will be reflected back along the original direction. Therefore, the reflected light intensity at the three laser reflection devices 206 and 207 will be very strong. Based on the position information of the point with the strongest laser reflected light intensity, the distance information deduced from the time difference of laser reflection, and the position information of the laser reflection devices 206 and 207 with different axial lengths, the three-dimensional coordinate system of the positioning of the first upper fixture 201 of the second tooling 2 can be accurately calculated. After comparing with the positioning coordinates of the emitter of the laser emission detection device 320, the attitude can be adjusted, and the motors of each tooling can be controlled according to the comparison data for parametric drive to achieve fine adjustment of the position of the segmented blade and complete the precise positioning of the fan segmented blade.

[0058] The following will introduce in detail how to use the assembly equipment for the fan segmented blade of the embodiment of the present application to achieve the docking and assembly of the fan segmented blade.

[0059] When the assembly equipment for the fan segmented blade of the embodiment of the present application passes the acceptance and is put into use, all toolings can be transported to the site in advance by a transport vehicle and initially positioned on site. The selection of the placement site of the assembly equipment for the fan segmented blade should be based on the actual situation, preferably in an area close to the fan unit and with a flat terrain. Debris on the site needs to be cleared before placing the assembly equipment for the fan segmented blade.

[0060] Place the assembly platform 5 preferentially. Assemble the first platform 510 and the second platform 520 of the assembly platform 5, the second tooling 2 and the third tooling 3 into an integrated docking tooling. After assembly, measure the perpendicularity and relative positioning of the second tooling 2 and the third tooling 3 respectively. Leave enough distance on both axial sides of the assembly platform 5 to place other toolings. After adjustment, use the parking support feet at the bottom of the first platform 510 to assist in positioning and fixing the assembly platform 5.

[0061] Use a crane or forklift to place the first tooling 1. The first tooling 1 needs to be adjusted to align with the second tooling 2 in the axial direction (X-axis direction) of the blade. A laser positioning device can be used to assist in positioning. The axial distance between the first tooling 1 and the second tooling 2 can be determined according to the design values of the segmented positions and transportation positions of the blades of each airfoil. The fourth tooling 4 is moved to be located in the axial direction (X-axis direction) of the blade with the third tooling 3. A laser positioning device can be used to assist in positioning. According to the previous simulation, first adjust the positions and heights of each tooling to the design theoretical values, aiming to make all subsequent adjustments as fine-tuning. After preparation, wait for docking.

[0062] For all fixture-type toolings in the assembly equipment of the segmented blades of the fan in the embodiment of the present application, the upper fixture part can be reserved during tooling positioning and needs to be removed before blade hoisting.

[0063] After the segmented blades of the fan are transported to the site respectively, hoist the root section 6 and the tip section 7 together with the transportation tooling and place them on the ground for storage, waiting for assembly. Before the start of assembly, remove and save the first upper fixture 201 of the second tooling 2 and the second upper fixture 301 of the third tooling 3.

[0064] Before the hoisting of the root section 6 starts, install the first positioning baffle 200 in the first positioning groove 208 of the first lower fixture 202 of the second tooling 2, and use bolts to lock and check for complete fixation; remove the transportation tooling of the root section 6, hoist the root section 6 by a crane. First, lower the front end of the root section 6 above the second tooling 2, and axially move it so that the end face 601 of the docking part of the root section 6 is in close contact with the first positioning baffle 200, and lower the front end of the root section 6 onto the first lower fixture 202 of the second tooling 2; then slowly lower the rear end of the root section 6 and hover it above the first tooling 1, adjust the position of the first tooling 1 according to the actual situation, and after positioning, lower the rear end of the root section 6 and remove the hoisting equipment; use a crane to assist in installing the first upper fixture 201 of the second tooling 2. The first upper fixture 201 is completely attached to the surface of the root section 6. The first upper fixture 201 and the first lower fixture 202 are both connected and clamped by bolt structures at the surrounding connecting ears 213 to ensure the positioning of the upper fixture 201 relative to the blade; after the installation of the first upper fixture 201 is completed, remove and store the first positioning baffle 200.

[0065] Before the hoisting of the tip section 7 starts, install the second positioning baffle 300 in the second positioning groove 318 of the second lower-side fixture 302 of the third tooling 3, and check and fix it completely with the locking bolts; remove the transportation tooling of the tip section 7, lift the tip section 7 by a crane. First, let the rear end of the tip section 7 drop to above the third tooling 3, and axially move it so that the end face 701 of the butt joint of the root section 6 is in close contact with the second positioning baffle 300, and then drop the rear end of the tip section 7 onto the second lower-side fixture 302 of the third tooling 3; then slowly lower the front end of the tip section 7 until the height of the front end can pass through the fourth tooling 4. At the same time, the gantry 401 of the fourth tooling 4 can be adjusted in height on the basis of the support legs 402. The fourth tooling 4 moves across the tip section 7 to the hoisting point position and stops. Use a sling 406 to pass through the lower side of the tip section 7 and connect both ends to the suspension rod 407, and lift the hook 408 to hoist the tip section 7; remove the hoisting equipment; use a crane to assist in installing the second upper-side fixture 301 of the third tooling 3. The second upper-side fixture 301 is in complete contact with the surface of the tip section 7. The second upper-side fixture 301 and the second lower-side fixture 302 are both connected and clamped by bolt structures at the surrounding connecting ears 319 to ensure the positioning of the second upper-side fixture 301 relative to the blade; after the installation of the second upper-side fixture 301 is completed, remove the second positioning baffle 300 and store it.

[0066] When installing the root section 6, the first fixture support 203 on the second tooling 2 can rotate around the first support rod 209 to improve the installation flexibility of the first lower-side fixture 202 of the second tooling 2 to meet the inclination change requirements of the root section 6 in the Y-axis direction; the roller rack 102 of the first tooling 1 can rotate around the shaft 103 to improve the applicability to blade profiles with different pitch circle diameters; the first tooling 1 drives the four rollers 101 to rotate synchronously through the first motor 104. At the same time, the second motor 212 of the second tooling 2 drives the main gear 215 to rotate, which drives the semi-circular gear disk 211 and the arc-shaped base 204 to provide the power for the root section 6 to rotate around the axial direction (X-axis direction). The support gear 214 is used for auxiliary support and fixation; the first tooling 1 and the second tooling 2 cooperate to rotate synchronously through program control to finely adjust the rotation angle of the root section 6 around the X-axis direction; after the relative positioning of the end face 701 of the butt joint with the tip section 7 is completed, lock the rollers 101 of the first tooling 1 and the main gear 215 of the second tooling 2 to fix the posture of the root section 6.

[0067] The second platform 520 drives the synchronous lifting of four hydraulic lifting devices 53 through the built-in motor of the first platform 510 to adjust the height, thereby adjusting the height of the third tooling 3; when the height of the suspension rod 407 of the fourth tooling 4 is adjusted synchronously with the height of the third tooling 3, the height of the blade tip section 7 can be adjusted to correspond to the blade root section 6; when the height of the suspension rod 407 of the fourth tooling 4 remains unchanged and the height of the third tooling 3 is adjusted, since the second fixture support 317 of the third tooling 3 can rotate around the second support rod 303, by finely adjusting the height of the third tooling 3, the inclination angle of the blade tip section 7 in the Y-axis direction can be adjusted to correspond to the end face 601 of the docking part with the blade root section 6; the two methods are combined to adjust the height (in the Z-axis direction) and the rotation in the Y-axis direction of the blade tip section 7.

[0068] The third tooling 3 drives the rotation of the first lead screw 315 through the third motor 304 to provide power for the movement of the first thread slider 314 of the second support seat 316, so that the first thread slider 314 moves linearly along the I-shaped guide rail 305, driving the movement and adjustment of the blade tip section 7 in the chord direction (Y-axis direction). At the same time, due to the flexible pulling force provided by the sling 406 of the fourth tooling 4, the fourth tooling 4 can remain stationary or move slightly in the chord direction (Y-axis direction) when necessary.

[0069] The third tooling 3 drives the rotation of the worm 307 through the fourth motor 312, and the worm gear 322 cooperating with the worm 307 rotates, driving the support circular tray 321 and the third support seat 313 integrated with it to rotate together. The four arc-shaped sliders 306 on both sides of the support circular tray 321 perform planar rotational motion along the arc-shaped guide rail 308 with limit blocks at both ends, driving the upper third tooling 3 to rotate horizontally around the Z-axis direction. At the same time, due to the flexible pulling force provided by the sling 406 of the fourth tooling 4, the fourth tooling 4 can remain stationary or move slightly in the chord direction (Y-axis direction) when necessary.

[0070] The second platform 520 drives the rotation of the second lead screw 526 through the fifth motor 525 to provide power for the movement of the second thread slider 310 of the fourth support seat 323 of the third tooling 3, thereby driving the linear slider 309 to move axially (X-axis direction) along the linear guide rail 521. At the same time, the directional wheel 311 rolls axially (X-axis direction) along the groove track 524 of the second platform 520, driving the upper third tooling 3 to move axially (X-axis direction); at the same time, the fourth tooling 4 synchronously drives the second driving wheel 404 to rotate, realizing the synchronous approach of the blade tip section 7, the third tooling 3, and the fourth tooling 4 to the second tooling 2 axially (X-axis direction) for docking; before the docking contact, the fifth motor 525 and the second driving wheel 404 need to decelerate synchronously in advance to prevent damage caused by rigid collision during blade docking.

[0071] The adjustment data of all the above-mentioned toolings are all based on the feedback of the laser positioning devices provided on the clamping mechanisms of the second tooling 2 and the third tooling 3.

[0072] After docking is completed, all the tooling driving devices are locked and fixed. After the relative positions of the blade and the tooling are fixed, the segmented blade docking joints are processed. This article does not cover the forms and connection methods of the blade docking joints, and theoretically, it can be applicable to various types of segmented blade docking structures.

[0073] After the blades are combined into one body, the first upper clamp 201 of the second tooling 2 and the second upper clamp 301 of the third tooling 3 are removed and stored. The whole blade is hoisted and transferred to the storage tooling on-site by a crane for on-site storage, waiting for the on-site blade installation and hoisting operation.

[0074] The assembly equipment for the segmented blades of the fan in the embodiment of the present application breaks through the limitation of the factory building space for the production of large blades. Segmented production can effectively utilize the existing factories for blades, avoiding the need to build new factories for manufacturing large blades, and greatly reducing the manufacturing cost of the production workshop.

[0075] The assembly equipment for the segmented blades of the fan in the embodiment of the present application breaks through the limitation of the molds for the production of large blades. Segmented production can effectively utilize the existing molds, while reducing the manufacturing cost of new molds, and can also transform and utilize old molds, reducing the mold sharing cost for blade production, and playing a promoting role in the future low-cost and modular production of blades.

[0076] The assembly equipment for the segmented blades of the fan in the embodiment of the present application breaks through the limitation of the transportation conditions for large blades, greatly reducing the difficulty and cost of blade transportation.

[0077] The assembly equipment for the segmented blades of the fan in the embodiment of the present application has excellent manufacturability, and moreover, has a simple structure, and has good transportability and manufacturability.

[0078] The assembly equipment for the segmented blades of the fan in the embodiment of the present application has complete functions and has good docking efficiency and environmental adaptability;

[0079] The assembly equipment for the segmented blades of the fan in the embodiment of the present application has detachability, can be applicable to multiple blade types, has good versatility and popularization, and can effectively guarantee and promote the commercialization and mass production of segmented blade manufacturing and assembly.

[0080] The above has introduced in detail the assembly equipment for the segmented blades of the fan provided in the embodiments of the present application. Specific examples are used in this article to elaborate on the assembly equipment for the segmented blades of the fan in the embodiments of the present application. The description of the above embodiments is only used to help understand the core idea of the present application and is not intended to limit the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the spirit and principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications should also fall within the protection scope of the appended claims of the present application.

Claims

1. An assembly device for a segmented blade of a fan, the blade comprising a root section and a tip section, the root section including a front end close to the tip section and a rear end away from the tip section, the tip section including a front end away from the root section and a rear end close to the root section, characterized in that: It includes: The first tooling, which is used to support the rear end of the blade root section and provide adjustment for the blade root section to rotate around the axial direction of the blade; The docking tooling, which is used for the docking and assembly of the front end of the blade root section and the rear end of the blade tip section. The docking tooling includes an assembly platform, and a second tooling and a third tooling arranged on the assembly platform. The second tooling is used to flexibly support the front end of the blade root section and provide fine adjustment for the blade root section to rotate around the axial direction of the blade and tipping rotation around the chord direction of the blade. The third tooling is used to support the rear end of the blade tip section, and the third tooling has multiple degrees of freedom on the assembly platform to provide multiple degrees of freedom adjustment for the blade tip section. The third tooling includes a second clamping mechanism for clamping the blade tip section. The second clamping mechanism includes a second lower clamp and a second upper clamp. The second lower clamp and the second upper clamp are cooperatively installed to clamp and fix the blade tip section. The third tooling also includes a second support base. A second support rod is arranged on the second support base. A second clamp support is arranged at the bottom of the second lower clamp. The second clamp support is installed on the second support rod, and the second clamp support can rotate around the second support rod to drive the second lower clamp to tip and rotate around the chord direction of the blade; The fourth tooling, which is used to flexibly support the front end of the blade tip section; And The positioning device, which is arranged on the docking tooling and is used for precise positioning during the docking process of the blade root section and the blade tip section.

2. The assembly device according to claim 1, wherein: The first tooling includes a support base, a pair of roller frames, and a pair of rollers arranged on each of the roller frames. The pair of roller frames are arranged at opposite ends of the support base along the chord direction of the blade, and the pair of roller frames can rotate around the axial direction of the blade.

3. The assembly device according to claim 2, characterized in that: A pair of first motors are arranged on the support base, and the pair of first motors are respectively used to drive the pair of roller frames to rotate synchronously.

4. The assembly device according to claim 2, characterized in that: A plurality of rotating wheels for support are arranged at the bottom of the support base.

5. The assembly device according to claim 1, characterized in that: The assembly platform includes a first platform and a second platform. A lifting device is connected between the first platform and the second platform. The second platform is located on the side closer to the blade tip of the first platform. The second tooling is arranged on the side closer to the blade root of the first platform, and the third tooling is arranged on the second platform.

6. The assembly device according to claim 5, characterized in that: The second tooling includes a first clamping mechanism for clamping the blade root section. The first clamping mechanism has a joint surface matching the outer contour of the blade root section, and the second clamping mechanism has a joint surface matching the outer contour of the blade tip section.

7. The assembly device according to claim 6, wherein: The first clamping mechanism includes a first lower clamp and a first upper clamp. The first lower clamp and the first upper clamp are cooperatively installed to clamp and fix the blade root section.

8. The assembly device according to claim 7, characterized in that: The second tooling also includes a first positioning baffle for axial positioning. A first positioning groove is formed in the first lower clamp, and the first positioning baffle is detachably installed in the first positioning groove.

9. The assembly device according to claim 7, characterized in that: The second tooling further includes a base. A first support rod is provided on the base. A first clamp support is provided at the bottom of the first lower clamp. The first clamp support is mounted on the first support rod. Moreover, the first clamp support can rotate around the first support rod to drive the first lower clamp to overturn and rotate around the chord direction of the blade.

10. The assembly device according to claim 9, characterized in that: The second tooling further includes a first support base. The base is an arc-shaped base, and the arc-shaped base can rotate around the axial direction of the blade on the first support base.

11. The assembly device according to claim 10, characterized in that: A second motor and a main gear are provided on the first support base. A semi-circular gear disc meshing with the main gear is provided on the arc-shaped base. The second motor is used to drive the main gear to rotate so as to drive the semi-circular gear disc and the arc-shaped base to rotate around the axial direction of the blade.

12. The assembly device according to claim 11, wherein: A pair of support gears meshing with the semi-circular gear disc are further provided on the first support base. The pair of support gears are respectively located on opposite sides of the main gear and are used to assist in supporting and fixing the arc-shaped base.

13. The assembly device according to claim 11, characterized in that: A pair of limit blocks are further provided on the arc-shaped base. The limit blocks are located at opposite ends of the semi-circular gear disc, and the limit blocks can be limited and blocked by the first support base to limit the rotation of the arc-shaped base.

14. The assembly device according to claim 6, wherein: The third tooling further includes a second positioning baffle for axial positioning. A second positioning groove is formed in the second lower clamp, and the second positioning baffle is detachably mounted in the second positioning groove.

15. The assembly device according to claim 6, characterized in that: The third tooling further includes a third support base. A third motor and a first lead screw are provided on the third support base. A first threaded slider with an internal thread cooperating with the first lead screw is provided on the second support base. The third motor is used to drive the first lead screw to rotate so as to drive the first threaded slider to move along the chord direction of the blade.

16. The assembly device according to claim 15, wherein: An I-shaped guide rail is further provided on the third support base, and the first threaded slider can linearly move along the I-shaped guide rail.

17. The assembly device according to claim 15, characterized in that: The third tooling further includes a fourth support base. A fourth motor and a worm are provided at the top of the fourth support base. A worm gear cooperating with the worm is provided at the bottom of the third support base. The third motor is used to drive the worm to rotate so as to drive the worm gear to rotate in the plane formed by the axial direction of the blade and the chord direction of the blade.

18. The assembly device according to claim 17, wherein: A pair of concentric arc-shaped guide rails are further provided at the top of the fourth support base. Two groups of concentric arc-shaped sliders are further provided at the bottom of the third support base. The two groups of arc-shaped sliders can respectively perform planar rotational motion along the pair of arc-shaped guide rails.

19. The assembly device according to claim 17, characterized in that: A fifth motor and a second lead screw are provided on the second platform. A second threaded slider with an internal thread cooperating with the second lead screw is provided at the bottom of the fourth support base. The fifth motor is used to drive the second lead screw to rotate so as to drive the second threaded slider to move along the axial direction of the blade.

20. The assembly device according to claim 19, wherein: A pair of linear guide rails are further provided on the second platform. The pair of linear guide rails are respectively located on opposite sides of the second lead screw. A pair of linear sliders are further provided at the bottom of the fourth support base. The pair of linear sliders can respectively slide on the pair of linear guide rails.

21. The assembly device according to claim 19, characterized in that: A pair of groove tracks are further provided on the second platform, and the pair of groove tracks are respectively located on opposite sides of the second lead screw. Two sets of directional wheels are further provided at the bottom of the fourth support base, and the two sets of directional wheels can slide in the pair of groove tracks respectively.

22. The assembly device according to claim 5, wherein: A first driving wheel is provided at the bottom of the first platform.

23. The assembly device according to claim 22, characterized in that: The first driving wheel includes a pair of driving front wheels and a pair of driving rear wheels. The pair of driving front wheels are fixedly connected to the frame of the first platform, and the pair of driving rear wheels are floatingly mounted on the frame of the first platform.

24. The assembly device according to claim 22, characterized in that: The first platform is further provided with a parking support leg for fixing.

25. The assembly device according to claim 1, characterized in that: The fourth tooling adopts a gantry lifting tooling, which includes a pair of support legs, a gantry and a lifting tooling for lifting the blade tip section. The gantry is telescopically arranged in the pair of support legs to adjust the height of the fourth tooling, and the lifting tooling is arranged on the gantry.

26. The assembly device according to claim 25, wherein: The lifting tooling includes a suspension rod and a sling that cooperates with the suspension rod for binding the blade tip section.

27. The assembly device according to claim 26, wherein: The lifting tooling further includes a traveling crane arranged on the gantry. The suspension rod is connected to the traveling crane through a hook, and the traveling crane can move along the chordal direction of the blade on the gantry.

28. The assembly device according to claim 25, characterized in that: A sixth motor and a second driving wheel are provided on the support leg. The sixth motor is used to drive the second driving wheel to rotate to drive the fourth tooling to move along the axial direction of the blade.

29. The assembly device according to claim 6, characterized in that: The positioning device includes a laser emission detection device and a laser reflection device. The laser emission detection device is arranged on the second clamping mechanism of the third tooling for emitting laser and detecting the reflected laser; the laser reflection device is arranged on the first clamping mechanism of the second tooling for reflecting laser, and the laser emission detection device and the laser reflection device are arranged opposite to each other.

30. The assembly device according to claim 29, characterized in that: There is one laser emission detection device, and there are three laser reflection devices. The positioning point of one laser emission detection device is determined based on the center point of the root circle, and the positioning points of the three laser reflection devices are determined according to the triangular distribution form.

31. The assembly device according to claim 30, characterized in that: The protruding length of the middle laser reflection device among the three laser reflection devices in the axial direction of the blade is greater than that of the other two laser reflection devices, and the protruding lengths of the other two laser reflection devices are the same.

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