Heating tool for lengthening wind power blade

Abstract

The utility model provides a heating tool for wind power blade extension, and relates to the technical field of fan blade extension processing, the heating tool comprises a lower support table and an upper support table, the upper support table is located above the lower support table, the lower surface of the lower support table and the upper surface of the upper support table are respectively and fixedly connected with a heating fan through bolts, and the heating fans are arranged on the lower surface of the lower support table and the upper surface of the upper support table. The sealing structures are arranged on the front portion, the rear portion and the two side faces of the positioning tool, when the fan blade extension area is heated through the heating fan, loss of heat on the side faces of the tool is effectively avoided, heated air is made to circulate in the tool, electric energy loss is reduced, the heat utilization rate is increased, and the service life of the fan blade extension area is prolonged. The problems that when a hot-air blower is used for directly baking and heating the extended butt joint position of the fan blade, due to the fact that an enclosure structure matched with the blade in radian, thickness and size is lacked, heat is rapidly lost, and heating and curing of connecting materials such as epoxy resin are not uniform enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of extended processing of fan blades, in particular to a heating tooling for extending wind power blades. Background Art

[0002] In order to further improve the power generation efficiency and performance of wind turbines, when the installation environment permits, the fan blades can be extended. In the specific method of extending wind power blades, the tip extension technology is a common and effective method. The tip extension technology increases the swept area of the blade and improves the total amount of wind energy captured by adding an extended bushing to the tip part of the original blade. The tip extension technology has the advantages of low cost, easy implementation and remarkable effect, so it has been widely used in the wind power industry. In the tip extension work, epoxy resin is used to bond the bushing to the tip, and the butt joint area is heated to promote the heating and curing of the epoxy resin, improving the firmness and processing efficiency of the tip extension of the wind power blade.

[0003] In the heating and curing work of the butt joint area of the tip extension of the existing wind power blade, a hot air blower is often used to bake and heat the local part of the blade to promote the curing of connection materials such as epoxy resin. When directly baking and heating the extended butt joint position of the fan blade with a hot air blower, due to the lack of an enclosure structure matching the blade curvature, thickness and size, the heat will be quickly lost, it is not easy to penetrate into the blade interior to heat the connection materials, and the heating angle is not easy to control, resulting in uneven heating and curing of connection materials such as epoxy resin. Summary of the Utility Model

[0004] The embodiments of the present disclosure relate to a heating tooling for extending wind power blades, which solves the problems that when directly baking and heating the extended butt joint position of the fan blade with a hot air blower, due to the lack of an enclosure structure matching the blade curvature, thickness and size, the heat will be quickly lost, it is not easy to penetrate into the blade interior to heat the connection materials, and the heating angle is not easy to control, resulting in uneven heating and curing of connection materials such as epoxy resin.

[0005] In the first aspect of the present disclosure, there is provided a heating tooling for extending wind power blades, specifically including: a lower support platform and an upper support platform. The upper support platform is located above the lower support platform. A heating blower is respectively fixedly connected to the lower surface of the lower support platform and the upper surface of the upper support platform by bolts. A lifting push rod is respectively fixedly connected to the front surface and the rear surface of the lower support platform by screws. The push rod of the lifting push rod is perpendicular to the lower surface of the lower support platform, and the outer end of the push rod of the lifting push rod faces upward. Seven positioning windshields are respectively slidably connected inside the lower support platform and the upper support platform. Side edge baffles are fixedly connected to the outer ends of the positioning windshields at the left end and the right end. The side edge baffles are perpendicular to the lower surface of the lower support platform.

[0006] In at least some embodiments, seven lower support platform guiding grooves are respectively formed on the inner front wall and the inner rear wall of the lower support platform. The lower support platform guiding grooves are perpendicular to the inner bottom surface of the lower support platform, and are slidably connected to the edge of the positioning wind shield. A lower support platform hot air outlet is formed through the middle of the lower support platform, and the lower support platform hot air outlet is connected to the air outlet of the lower heating fan below.

[0007] In at least some embodiments, two longitudinal guide rods are connected to the front surface of the lower support platform by welding, and two longitudinal guide rods are connected to the rear surface of the lower support platform by welding. The longitudinal guide rods are perpendicular to the lower surface of the lower support platform, and two lower support feet are connected to the lower surface of the lower support platform by welding.

[0008] In at least some embodiments, seven upper support platform guiding grooves are respectively formed on the inner front wall and the inner rear wall of the upper support platform. The upper support platform guiding grooves are perpendicular to the inner top surface of the upper support platform, and are slidably connected to the edge of the positioning wind shield. A gull upper support platform hot air outlet is formed through the middle of the upper support platform, and the upper support platform hot air outlet is connected to the air outlet of the heating fan above.

[0009] In at least some embodiments, two guiding sliders are respectively fixedly connected to the front surface and the rear surface of the upper support platform. The guiding sliders are slidably connected to the longitudinal guide rods. One longitudinal top block is respectively fixedly connected to the front surface and the rear surface of the upper support platform, and the lower surface of the longitudinal top block is in fit with the upper end of the push rod of the lifting push rod.

[0010] In at least some embodiments, an arc-shaped support groove with an arc-shaped structure is formed at the center of the inner edge of the positioning wind shield. An outer end push plate is fixedly connected to the outer edge of the positioning wind shield. Two limiting top springs are fixedly connected to the outer surface of the outer end push plate. Side edge baffles are fixedly connected to the outer edges of the limiting top springs of the positioning wind shields at the left end and the right end. The lower ends of the limiting top springs located inside the lower support platform are fixedly connected to the inner bottom surface of the lower support platform, and the upper ends of the limiting top springs located inside the upper support platform are fixedly connected to the inner top surface of the upper support platform.

[0011] The present utility model provides a heating tooling for extending a wind turbine blade, which has the following beneficial effects:

[0012] The present utility model improves and designs a positioning tooling dedicated to the butt joint area of the tip extension of a wind turbine blade. Through the arrangement of a plurality of evenly distributed positioning wind shields, the positioning wind shields are limited between the lower support platform and the upper support platform by limiting top springs, and the positioning wind shields are pushed against the outer surface of the wind turbine blade, so that the outer edge of the positioning wind shield is closely attached to the outer surface of the wind turbine blade, thereby uniformly positioning the outer surface of the wind turbine blade. Through the arrangement of the arc-shaped support groove with an arc-shaped structure, the arc-shaped support groove is attached to the arc surface structure of the wind turbine blade, improving the positioning firmness of the positioning tooling for the wind turbine blade and adapting to the clamping and fixing of different thickness areas of the blade, and reducing stress concentration.

[0013] In the present utility model, sealing structures are provided on the front, rear, and both side surfaces of the positioning tooling. The side sealing structure ensures the sealing of the tooling side while maintaining contact with the blade surface. When heating the extended area of the fan blade with a heating blower, the side of the tooling is sealed by the action of the side edge baffle, effectively preventing heat loss from the tooling side, allowing the heated air to circulate inside the tooling, reducing power consumption, and improving heat utilization efficiency, enabling more stable and rapid heating and curing of connection materials such as epoxy resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0015] The drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0016] In the drawings:

[0017] Figure 1 A schematic diagram showing the overall structure of the present application is shown;

[0018] Figure 2 A schematic diagram showing the structure of the tooling of the present application after combination is shown;

[0019] Figure 3 A schematic diagram showing the structure of the tooling of the present application in a disassembled state is shown;

[0020] Figure 4 A schematic diagram showing the structure of the present application when the lower support platform and the positioning wind baffle are separated is shown;

[0021] Figure 5 A schematic diagram showing the present application Figure 4 of the bottom is shown;

[0022] Figure 6 A schematic diagram showing the structure of the present application when the upper support platform and the positioning wind baffle are separated is shown;

[0023] Figure 7 A schematic diagram showing the structure of the positioning wind baffle of the present application is shown.

[0024] LIST OF REFERENCE NUMERALS

[0025] 1. Lower support platform; 101. Lower support platform guide groove; 102. Lower support platform hot air outlet; 103. Longitudinal guide rod; 104. Lower support leg; 2. Upper support platform; 201. Upper support platform guide groove; 202. Upper support platform hot air outlet; 203. Guide slider; 204. Longitudinal top block; 3. Lifting push rod; 4. Heating blower; 5. Positioning wind baffle; 501. Arc-shaped support groove; 502. Outer end push plate; 503. Limit top spring; 6. Side edge baffle. Detailed implementation manners

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1: Please refer to Figures 1 to 7 :[[]]END]]

[0028] The present utility model provides a heating tooling for extending a wind turbine blade, including: a lower support table 1 and an upper support table 2. The upper support table 2 is located above the lower support table 1. A heating blower 4 is respectively fixedly connected to the lower surface of the lower support table 1 and the upper surface of the upper support table 2 by bolts. A lifting push rod 3 is respectively fixedly connected to the front surface and the rear surface of the lower support table 1 by screws. The push rod of the lifting push rod 3 is perpendicular to the lower surface of the lower support table 1, and the outer end of the push rod of the lifting push rod 3 faces upward. Seven positioning windshields 5 are respectively slidably connected inside the lower support table 1 and the upper support table 2. Side edge baffles 6 are fixedly connected to the outer ends of the positioning windshields 5 at the left end and the right end. The side edge baffles 6 are perpendicular to the lower surface of the lower support table 1.

[0029] In the embodiments of the present disclosure, when positioning the wind turbine blade, the lower support table 1 and the upper support table 2 are butted, and the side edge baffles 6 on their sides are attached to the outer surface of the wind turbine blade to seal the side of the tooling. The heating blower 4 is a circulation blower, which draws the air inside the tooling into the heating blower 4 and heats it, and then transports it into the tooling, so that the heated air flows inside the tooling and passes through the outer surface of the wind turbine blade, making the wind turbine blade evenly heated and improving the uniformity of the heating and curing of the epoxy resin.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, seven lower support platform guiding grooves 101 are respectively formed on the inner front wall and the inner rear wall of the lower support platform 1. The lower support platform guiding grooves 101 are perpendicular to the inner bottom surface of the lower support platform 1, and the lower support platform guiding grooves 101 are slidably connected to the edge of the positioning wind shield 5. A lower support platform hot air outlet 102 is formed through the middle of the lower support platform 1, and the lower support platform hot air outlet 102 is connected to the air outlet of the lower heating fan 4 below; two longitudinal guide rods 103 are connected to the front surface of the lower support platform 1 by welding, and two longitudinal guide rods 103 are connected to the rear surface of the lower support platform 1 by welding. The longitudinal guide rods 103 are perpendicular to the lower surface of the lower support platform 1, and two lower support feet 104 are connected to the lower surface of the lower support platform 1 by welding; seven upper support platform guiding grooves 201 are respectively formed on the inner front wall and the inner rear wall of the upper support platform 2. The upper support platform guiding grooves 201 are perpendicular to the inner top surface of the upper support platform 2, and the upper support platform guiding grooves 201 are slidably connected to the edge of the positioning wind shield 5. An upper support platform hot air outlet 202 is formed through the middle of the upper support platform 2, and the upper support platform hot air outlet 202 is connected to the air outlet of the heating fan 4 above; two guiding sliders 203 are respectively fixedly connected to the front surface and the rear surface of the upper support platform 2. The guiding sliders 203 are slidably connected to the longitudinal guide rods 103. One longitudinal top block 204 is respectively fixedly connected to the front surface and the rear surface of the upper support platform 2. The lower surface of the longitudinal top block 204 is in fit with the upper end of the push rod of the lifting push rod 3; under normal conditions, a lifting push rod 3 is arranged between the lower support platform 1 and the upper support platform 2. The lifting and lowering of the upper support platform 2 are controlled by the telescopic movement of the lifting push rod 3, and the opening and closing of the tooling are controlled. The guiding function is achieved through the sliding connection between the longitudinal guide rods 103 and the guiding sliders 203, and the upper support platform 2 is kept lifting vertically and linearly.

[0032] Embodiment Three:

[0033] On the basis of Embodiment 2, an arc-shaped support groove 501 with an arc-shaped structure is provided at the center of the inner edge of the positioning wind deflector 5. The outer edge of the positioning wind deflector 5 is fixedly connected with an outer end push plate 502. Two limiting top springs 503 are fixedly connected to the outer surface of the outer end push plate 502. The outer edges of the limiting top springs 503 of the positioning wind deflectors 5 at the left end and the right end are fixedly connected with side edge baffles 6. The lower ends of the limiting top springs 503 inside the lower support platform 1 are fixedly connected to the inner bottom surface of the lower support platform 1, and the upper ends of the limiting top springs 503 inside the upper support platform 2 are fixedly connected to the inner top surface of the upper support platform 2. The positioning wind deflector 5 is slidably connected inside the lower support platform 1 and the upper support platform 2 and is limited by the limiting top springs 503. When using the tooling to fix the fan blade, the lower support platform 1 and the upper support platform 2 are butted. The positioning wind deflector 5 contacts the outer arc surface of the fan blade, and under the thrust of the limiting top springs 503, the arc-shaped support groove 501 with an arc-shaped structure is closely attached to the outer arc surface of the fan blade. The side edge baffles 6 on the outside are attached to the side end faces of the lower support platform 1 and the upper support platform 2, so that the lower support platform 1, the upper support platform 2, the positioning wind deflector 5 and the side edge baffles 6 form a surrounding structure for the fan blade, which can effectively reduce the heat loss and promote the flowing contact between the hot air and the fan blade.

[0034] In this article, the following points need to be noted:

[0035] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0036] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0037] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. Heating tooling for extending wind power blades, characterized in that, Comprising: A lower support platform (1) and an upper support platform (2), the upper support platform (2) being located above the lower support platform (1). A heating blower (4) is respectively fixedly connected to the lower surface of the lower support platform (1) and the upper surface of the upper support platform (2) by bolts. A lifting push rod (3) is respectively fixedly connected to the front surface and the rear surface of the lower support platform (1) by screws. The push rod of the lifting push rod (3) is perpendicular to the lower surface of the lower support platform (1), and the outer end of the push rod of the lifting push rod (3) faces upward. Positioning windshields (5) are respectively slidably connected inside the lower support platform (1) and the upper support platform (2). Side edge baffles (6) are fixedly connected to the outer ends of the positioning windshields (5) at the left and right ends. The side edge baffles (6) are perpendicular to the lower surface of the lower support platform (1).

2. The heating tooling for extending a wind power blade according to claim 1, wherein Lower support platform guide grooves (101) are respectively formed on the front inner wall and the rear inner wall of the lower support platform (1). The lower support platform guide grooves (101) are perpendicular to the inner bottom surface of the lower support platform (1), and are slidably connected to the edges of the positioning windshields (5). A lower support platform hot air outlet (102) is formed through the middle of the lower support platform (1), and the lower support platform hot air outlet (102) is connected to the air outlet of the lower heating blower (4).

3. The heating tooling for extending a wind power blade according to claim 2, wherein Two longitudinal guide rods (103) are connected to the front surface of the lower support platform (1) by welding, and two longitudinal guide rods (103) are connected to the rear surface of the lower support platform (1) by welding. The longitudinal guide rods (103) are perpendicular to the lower surface of the lower support platform (1). Two lower support feet (104) are connected to the lower surface of the lower support platform (1) by welding.

4. The heating tooling for extending a wind power blade according to claim 1, wherein Upper support platform guide grooves (201) are respectively formed on the front inner wall and the rear inner wall of the upper support platform (2). The upper support platform guide grooves (201) are perpendicular to the inner top surface of the upper support platform (2), and are slidably connected to the edges of the positioning windshields (5). An upper support platform hot air outlet (202) is formed through the middle of the upper support platform (2), and the upper support platform hot air outlet (202) is connected to the air outlet of the upper heating blower (4).

5. The heating tooling for extending a wind power blade according to claim 3, wherein Two guide sliders (203) are respectively fixedly connected to the front surface and the rear surface of the upper support platform (2). The guide sliders (203) are slidably connected to the longitudinal guide rods (103). One longitudinal top block (204) is respectively fixedly connected to the front surface and the rear surface of the upper support platform (2). The lower surface of the longitudinal top block (204) is in contact with the upper end of the push rod of the lifting push rod (3).

6. The heating tooling for extending a wind power blade according to claim 1, wherein An arc-shaped support groove (501) with an arc-shaped structure is provided at the center of the inner edge of the positioning wind deflector (5). An outer end push plate (502) is fixedly connected to the outer edge of the positioning wind deflector (5). Two limiting top springs (503) are fixedly connected to the outer surface of the outer end push plate (502). Side edge baffles (6) are fixedly connected to the outer edges of the limiting top springs (503) of the positioning wind deflectors (5) at the left and right ends. The lower ends of the limiting top springs (503) located inside the lower support platform (1) are fixedly connected to the inner bottom surface of the lower support platform (1), and the upper ends of the limiting top springs (503) located inside the upper support platform (2) are fixedly connected to the inner top surface of the upper support platform (2).

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