Polishing device

Abstract

The utility model belongs to the technical field of wind power blade machining devices, and discloses a polishing device which comprises a rack assembly and a polishing assembly. A bonding angle bearing face parallel to the first direction and a polishing assembly bearing face forming an angle with the first direction are formed on the rack assembly, and the height of the polishing assembly bearing face is gradually reduced in the direction close to the bonding angle bearing face. The polishing assembly is arranged on the polishing assembly bearing face, a polishing wheel of the polishing assembly extends to the bonding angle bearing face, the polishing wheel and the bonding angle bearing face are arranged in a spaced mode to form a polishing space, the bonding angle structure can be polished in the polishing space, and a staggered layer part is formed at the end of the bonding angle structure. The polishing device can polish the end of the bonding angle structure of the web in the wind power blade, the thickness of the end is reduced, and stress concentration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine blade processing devices, in particular to a grinding device. Background Art

[0002] like Figure 1 and Figure 2 As shown, in the prior art, the web 1 inside the wind turbine blade is connected to the inner surface of the blade by bonding, and the two ends of the web 1 are respectively connected to the inner side of the windward surface 2 and the inner side of the leeward surface 3 of the wind turbine blade.

[0003] In order to improve the installation stability of the web 1, a bonding angle structure 41 is often provided at the end of the web 1 to increase the contact area and bonding strength between the web 1 and the inner surface of the blade. The bonding angle structure 41 is integrally formed with the web 1 and is a multi-layer composite structure. The end of the web 1 has a thicker non-staggered portion 411, such as Figure 2 As shown, during the use of wind turbine blades, stress concentration problems are very likely to occur here.

[0004] Therefore, a grinding device is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a grinding device, which can grind the end of the bonding angle structure of the web in the wind turbine blade, reduce the thickness of the end, and avoid stress concentration.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] Grinding device, comprising:

[0008] a frame assembly, the frame assembly forming a bonding angle bearing surface parallel to the first direction and a grinding assembly bearing surface arranged at an angle to the first direction, the grinding assembly bearing surface gradually decreasing in height in a direction approaching the bonding angle bearing surface;

[0009] A grinding assembly is arranged on the grinding assembly bearing surface, and the grinding wheel of the grinding assembly extends to the bonding angle bearing surface and is spaced apart from the bonding angle bearing surface to form a grinding space. The bonding angle structure can be ground in the grinding space, and a staggered portion is formed at the end of the bonding angle structure.

[0010] As a preferred solution of the grinding device provided by the present invention, the frame assembly includes a support frame and a first bearing plate, the first bearing plate is arranged parallel to the first direction and connected to the support frame, and the bonding angle bearing surface is formed on the upper end surface of the first bearing plate.

[0011] As a preferred solution of the grinding device provided by the present invention, the frame assembly further includes a positioning mechanism, which is arranged on the first supporting plate and can abut against an end portion of the bonding angle structure.

[0012] As a preferred solution of the grinding device provided by the present invention, the positioning mechanism includes two positioning blocks arranged at intervals, the two positioning blocks are fixedly connected to the first bearing plate and can respectively abut against the bonding angle structures at both ends of the web.

[0013] As a preferred embodiment of the grinding device provided by the present invention, the frame assembly includes a support frame and a second bearing plate, the second bearing plate is arranged on the support frame and is arranged at an angle to the first direction, and the grinding assembly bearing surface is formed on the upper end surface of the second bearing plate;

[0014] The grinding assembly further includes a grinding drive mechanism, a driving portion of the grinding drive mechanism is mounted on the second supporting plate, an output portion of the grinding drive mechanism extends to the grinding assembly supporting surface, and the grinding wheel is connected to the output portion of the grinding drive mechanism.

[0015] As a preferred solution of the grinding device provided by the present invention, the grinding assembly also includes a mounting frame, the mounting frame includes a first mounting portion and a second mounting portion fixedly connected to each other in an L-shape, the output portion of the grinding drive mechanism is fixedly connected to the first mounting portion and is spaced apart from the second mounting portion, the output portion of the grinding drive mechanism passes through the first mounting portion, and the second mounting portion is installed on the second supporting plate.

[0016] As a preferred solution of the grinding device provided by the present invention, the grinding device also includes an adjustment component, the second mounting portion is connected to the second supporting plate through the adjustment component, and the distance between the second mounting portion and the second supporting plate can be adjusted by the adjustment component.

[0017] As a preferred solution of the grinding device provided by the present invention, the grinding assembly further includes a speed regulator, which is connected to the driving part of the grinding drive mechanism and can adjust the rotational speed of the output part of the grinding drive mechanism.

[0018] As a preferred solution of the grinding device provided by the present invention, the frame assembly further includes a handle, which is connected to the support frame and can be held by an operator to move the support frame along the extension direction of the bonding angle structure.

[0019] As a preferred solution of the grinding device provided by the present invention, the grinding wheel is a cone structure, a frustum structure or a cylinder structure.

[0020] Beneficial effects of the utility model:

[0021] The grinding device provided by the present invention includes a frame assembly and a grinding assembly. The frame assembly is formed with a bonding angle bearing surface parallel to the first direction and a grinding assembly bearing surface arranged at an angle to the first direction, and the height of the grinding assembly bearing surface gradually decreases along the direction close to the bonding angle bearing surface. The bonding angle bearing surface can be used to support the bonding angle structure, and the grinding assembly bearing surface can provide an installation position for the grinding assembly. The grinding assembly is arranged on the grinding assembly bearing surface, and the grinding wheel of the grinding assembly extends to the bonding angle bearing surface and is spaced apart from the bonding angle bearing surface to form a grinding space. The bonding angle structure can be ground in the grinding space, and a staggered portion is formed at the end of the bonding angle structure. By grinding the end of the bonding angle structure with the above-mentioned grinding wheel, the thickness of the end can be reduced to avoid stress concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the interior of a wind turbine blade in the prior art;

[0024] Figure 2 It is a schematic diagram of the web and bonding angle structure in the prior art;

[0025] Figure 3 This is a schematic diagram of the interior of a wind turbine blade provided by the present invention;

[0026] Figure 4 It is a schematic diagram of the web and bonding angle structure provided by the present invention;

[0027] Figure 5 This is a schematic diagram of the grinding device provided by the present invention grinding a bonding angle structure;

[0028] Figure 6 It is a side view of the grinding device provided by the utility model;

[0029] Figure 7 This is a front view of the grinding device provided by the utility model;

[0030] Figure 8 yes Figure 7 A partial enlarged view of the structure marked as A;

[0031] Figure 9 yes Figure 7 A partial enlarged view of the structure marked B.

[0032] In the picture:

[0033] 1. Web; 2. Windward side; 3. Leeward side; 41. Bonded corner structure; 411. Non-staggered part; 412. Staggered part;

[0034] 100, frame assembly; 110, support frame; 120, first bearing plate; 121, bonding angle bearing surface; 130, positioning mechanism; 131, positioning block; 140, second bearing plate; 141, polishing assembly bearing surface; 150, handle;

[0035] 200, grinding assembly; 210, grinding wheel; 220, grinding drive mechanism; 230, mounting frame; 231, first mounting portion; 232, second mounting portion;

[0036] 300. Adjustment component. DETAILED DESCRIPTION

[0037] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0044] In this embodiment, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this utility model generally indicates that the related objects are in an "or" relationship.

[0045] The following describes embodiments of the present invention in detail. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] Figure 3Shows the internal schematic diagram of the wind turbine blade provided by the present invention; Figure 4 A schematic diagram showing the web and bonding angle structure provided by the present invention; Figure 5 The schematic diagram of the grinding device provided by the present invention grinding the bonding angle structure is shown. Figure 3-Figure 5 This embodiment provides a grinding device that can grind the end of the bonding angle structure 41 to form an inclined staggered portion 412, thereby reducing the thickness of the end of the bonding angle structure 41 and avoiding stress concentration problems there.

[0047] Specifically, the grinding device includes a frame assembly 100 and a grinding assembly 200. The frame assembly 100 is formed with a bonding angle bearing surface 121 parallel to a first direction and a grinding assembly bearing surface 141 arranged at an angle to the first direction. The height of the grinding assembly bearing surface 141 gradually decreases as it approaches the bonding angle bearing surface 121.

[0048] The grinding assembly 200 is mounted on the grinding assembly support surface 141. The grinding wheel 210 of the grinding assembly 200 extends to the bonding angle support surface 121 and is spaced apart from the bonding angle support surface 121 to form a grinding space. The bonding angle structure 41 can be polished in this grinding space. A staggered portion 412 is formed at the end of the bonding angle structure 41. The bonding angle support surface 121 can be used to stably support the bonding angle structure 41. The grinding assembly support surface 141 can provide a secure installation location for the grinding assembly 200.

[0049] Figure 6 Shows a side view of the grinding device provided by the utility model; Figure 7 The front view of the grinding device provided by the present invention is shown. Figure 5-Figure 7 The frame assembly 100 includes a support frame 110 and a first supporting plate 120 . The first supporting plate 120 is arranged parallel to the first direction and connected to the support frame 110 . The bonding angle supporting surface 121 is formed on the upper end surface of the first supporting plate 120 .

[0050] Specifically, the frame assembly 100 further includes a second supporting plate 140. The second supporting plate 140 is disposed on the support frame 110 and is arranged at an angle relative to the first direction. The polishing assembly supporting surface 141 is formed on the upper end surface of the second supporting plate 140. The polishing assembly 200 further includes a polishing drive mechanism 220. The driving portion of the polishing drive mechanism 220 is mounted on the second supporting plate 140. The output portion of the polishing drive mechanism 220 extends to the polishing assembly supporting surface 141. The polishing wheel 210 is connected to the output portion of the polishing drive mechanism 220. In this embodiment, the polishing drive mechanism 220 can specifically be a motor.

[0051] More specifically, the grinding assembly 200 further includes a speed regulator (not shown), which is electrically connected to the drive unit of the grinding drive mechanism 220 and is capable of adjusting the rotational speed of the output unit of the grinding drive mechanism 220. By providing this speed regulator, the grinding speed of the grinding wheel 210 can be adjusted according to the actual grinding conditions to achieve the best grinding effect.

[0052] Figure 8 Show Figure 7 A partial enlarged view of the structure marked as A; Figure 9 Show Figure 7 A partial enlarged view of the structure marked as B. Figure 7 and Figure 8 In this embodiment, the grinding wheel 210 has a conical, frustoconical, or cylindrical structure. It should be noted that the grinding wheel 210 needs to be tilted relative to the bonding angle bearing surface 121. As it approaches the grinding drive mechanism 220, the distance between the grinding wheel 210 and the bonding angle bearing surface 121 gradually decreases, thereby forming a grinding space with a gradually varying height. This is suitable for grinding the end of the bonding angle structure 41 to form an inclined staggered portion 412. As it moves away from the web 1, the thickness of the staggered portion 412 gradually decreases.

[0053] It should be noted that the distance between the bottom of the grinding wheel 210 distal to the grinding drive mechanism 220 and the bonding angle bearing surface 121 is defined as H1, and the distance between the bottom of the grinding wheel 210 proximal to the grinding drive mechanism 220 and the bonding angle bearing surface 121 is defined as H2. H1 is greater than H2, and in this embodiment, H2 must satisfy the following relationship: H2 = n × 0.6, where n is an integer such as 1, 2, 3, etc.

[0054] Continue to refer to Figure 5-Figure 7 The frame assembly 100 further includes a positioning mechanism 130. The positioning mechanism 130 is disposed on the first supporting plate 120 and is located at the junction of the first supporting plate 120 and the second supporting plate 140. The positioning mechanism 130 can abut against the end of the bonding angle structure 41 to achieve reliable positioning of the bonding angle structure 41.

[0055] Specifically, in this embodiment, in order to avoid interference between the positioning mechanism 130 and the grinding wheel 210, the positioning mechanism 130 includes two positioning blocks 131 arranged at intervals. The two positioning blocks 131 are fixedly connected to the first supporting plate 120 and can respectively abut against the bonding angle structure 41 at both ends of the web 1. The grinding wheel 210 can extend from the space between the two positioning blocks 131 to the bonding angle supporting surface 121.

[0056] Continue to refer to Figure 5 and Figure 7The polishing assembly 200 also includes a mounting bracket 230. The mounting bracket 230 includes a first mounting portion 231 and a second mounting portion 232 that are fixedly connected to each other in an L-shape. The output portion of the polishing drive mechanism 220 is fixedly connected to the first mounting portion 231 and spaced apart from the second mounting portion 232. The output portion of the polishing drive mechanism 220 passes through the first mounting portion 231, and the second mounting portion 232 is mounted on the second supporting plate 140. The mounting bracket 230 ensures the stability of the polishing drive mechanism 220 when mounted on the second supporting plate 140.

[0057] Specifically, the polishing device also includes an adjustment assembly 300, through which the second mounting portion 232 is connected to the second supporting plate 140. The adjustment assembly 300 allows the spacing between the second mounting portion 232 and the second supporting plate 140 to be adjusted. The adjustment assembly 300 allows the height of the polishing space to be adjusted based on the desired thickness of the staggered portion 412, thereby expanding the applicability of the polishing device. The height of the polishing space can be adjusted based on the staggered design within the bonding angle structure 41.

[0058] To be more specific, the adjustment assembly 300 specifically includes a plurality of bolts arranged in an array, which pass through the second mounting portion 232 from the side of the second mounting portion 232 away from the second supporting plate 140 and are screwed into the second supporting plate 140. The head of the bolt can be pressed against the side of the second mounting portion 232 away from the second supporting plate 140, and a gasket is arranged between the second mounting portion 232 and the second supporting plate 140. By adjusting the number of gaskets, the distance between the second mounting portion 232 and the second supporting plate 140 can be adjusted.

[0059] The angle ɑ between the bottom of the grinding wheel 210 and the bonding angle bearing surface 121 can also be adjusted using the adjustment assembly 300. By increasing the number of shims corresponding to the bolts close to the grinding wheel 210 and decreasing the number of shims corresponding to the bolts far from the grinding wheel 210, the angle ɑ can be increased; by decreasing the number of shims corresponding to the bolts close to the grinding wheel 210 and increasing the number of shims corresponding to the bolts far from the grinding wheel 210, the angle ɑ can be decreased.

[0060] More specifically, refer to Figure 5-Figure 7 The frame assembly 100 further includes a handle 150 , which is connected to the support frame 110 and can be held by an operator to move the support frame 110 along the extension direction of the bonding angle structure 41 to achieve grinding.

[0061] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A grinding device, characterized in that: include: A frame assembly (100), wherein the frame assembly (100) is formed with a bonding angle bearing surface (121) parallel to a first direction and a grinding assembly bearing surface (141) arranged at an angle to the first direction, and the height of the grinding assembly bearing surface (141) gradually decreases in a direction approaching the bonding angle bearing surface (121); A grinding assembly (200) is provided on the grinding assembly bearing surface (141); a grinding wheel (210) of the grinding assembly (200) extends to the bonding angle bearing surface (121) and is spaced apart from the bonding angle bearing surface (121) to form a grinding space; the bonding angle structure (41) can be ground in the grinding space, and a staggered portion (412) is formed at the end of the bonding angle structure (41).

2. The grinding device according to claim 1, characterized in that: The frame assembly (100) comprises a support frame (110) and a first bearing plate (120), wherein the first bearing plate (120) is arranged parallel to a first direction and connected to the support frame (110), and the bonding angle bearing surface (121) is formed on the upper end surface of the first bearing plate (120).

3. The grinding device according to claim 2, characterized in that: The frame assembly (100) further comprises a positioning mechanism (130), wherein the positioning mechanism (130) is arranged on the first supporting plate (120), and the positioning mechanism (130) is capable of abutting against an end portion of the bonding angle structure (41).

4. The grinding device according to claim 3, characterized in that: The positioning mechanism (130) comprises two positioning blocks (131) spaced apart from each other. The two positioning blocks (131) are fixedly connected to the first bearing plate (120) and can respectively abut against the bonding angle structures (41) at both ends of the web (1).

5. The grinding device according to claim 1, characterized in that: The frame assembly (100) comprises a support frame (110) and a second bearing plate (140), wherein the second bearing plate (140) is arranged on the support frame (110) and is arranged at an angle to the first direction, and the polishing assembly bearing surface (141) is formed on the upper end surface of the second bearing plate (140); The grinding assembly (200) further comprises a grinding drive mechanism (220), wherein a driving portion of the grinding drive mechanism (220) is mounted on the second bearing plate (140), an output portion of the grinding drive mechanism (220) extends to the grinding assembly bearing surface (141), and the grinding wheel (210) is connected to the output portion of the grinding drive mechanism (220).

6. The grinding device according to claim 5, characterized in that: The grinding assembly (200) further comprises a mounting frame (230), wherein the mounting frame (230) comprises a first mounting portion (231) and a second mounting portion (232) which are fixedly connected to each other in an L-shape, the output portion of the grinding drive mechanism (220) being fixedly connected to the first mounting portion (231) and spaced apart from the second mounting portion (232), the output portion of the grinding drive mechanism (220) passing through the first mounting portion (231), and the second mounting portion (232) being mounted on the second bearing plate (140).

7. The grinding device according to claim 6, characterized in that: The polishing device further comprises an adjusting assembly (300), wherein the second mounting portion (232) is connected to the second supporting plate (140) via the adjusting assembly (300), and the distance between the second mounting portion (232) and the second supporting plate (140) can be adjusted via the adjusting assembly (300).

8. The grinding device according to claim 5, characterized in that: The polishing assembly (200) further comprises a speed regulator, which is connected to the driving portion of the polishing drive mechanism (220) and is capable of adjusting the rotational speed of the output portion of the polishing drive mechanism (220).

9. The grinding device according to claim 2, characterized in that: The frame assembly (100) further includes a handle (150), which is connected to the support frame (110) and can be held by an operator to move the support frame (110) along the extension direction of the bonding angle structure (41).

10. The grinding device according to any one of claims 1 to 9, characterized in that: The grinding wheel (210) is a cone structure, a frustum structure or a cylinder structure.

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