Winding tool for end ring forming

By designing a winding tooling for end ring forming, the problem of difficult end ring demolding was solved, enabling efficient and low-cost end ring production and improving production efficiency and yield.

CN223520267UActive Publication Date: 2025-11-07ZHEJIANG BOFAY ELECTRIC CO LTD
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Patent Information

Application Number
CN202423040271.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-10
Publication Date
2025-11-07
Estimated Expiration
2034-12-10

AI Technical Summary

Technical Problem

In existing technologies, it is difficult to demold the end ring after fiber winding molding, especially the end ring after high-tension curing is difficult to remove from the metal core mold, and the production cost of multiple core molds is high and the efficiency is low.

Method used

Design a winding fixture including a shaft and a winding support. The winding support is provided with several winding grooves and is connected to the shaft by a fastening structure. It can drive the winding support to rotate, and together with the connecting rod and friction layer, it can achieve efficient winding and curing of fibers. The release agent reduces the demolding difficulty.

Benefits of technology

This technology enables the simultaneous winding and curing of multiple end rings, improving production efficiency, reducing demolding difficulty and cost, and ensuring the dimensional accuracy and yield of the end rings.

✦ Generated by Eureka AI based on patent content.

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Abstract

A winding tool for end ring forming comprises a shaft body and a winding support, the winding support is connected to the shaft body, and the shaft body can drive the winding support to rotate; the shaft body is connected with a fastening structure, and the winding support is connected to the shaft body through the fastening structure. A plurality of winding grooves are formed in the winding bracket in the length direction of the shaft body and are used for winding and curing to form end rings; by means of the winding support provided with the multiple winding grooves, winding and curing of the multiple end rings can be carried out, winding and curing of the multiple end rings can be completed through single-time winding work, the overall production efficiency can be improved through batch work, and the production requirements for low cost and high efficiency in the end ring production process are met.
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Description

TECHNICAL FIELD

[0001] The application relates to the field of fiber composite material design and manufacturing, in particular to a winding tool for end ring forming. BACKGROUND

[0002] In the operation process of a double-fed wind power generator, a huge centrifugal force is generated by the high-speed rotation of the rotor end, and in order to balance the centrifugal force and prevent the copper bar from flying, a glass fiber or carbon fiber reinforced composite end fixing ring (hereinafter referred to as an end ring) is needed for protection and fixing.

[0003] The end ring is small in length but large in use, and the end ring is usually formed and solidified on a metal core mold by a fiber winding forming process; the process is generally to wind the fiber on the core mold to form, and the core mold is removed after solidification and forming to become a winding product, and the demolding of the solidified winding product is very difficult, especially the product solidified and formed by increasing the winding tension to improve the density and strength of the product, and the core mold is more difficult to remove; and when the end ring product is large, multiple metal core molds are needed for single production, which is high in cost and low in efficiency. SUMMARY

[0004] The application aims to provide a winding tool for end ring forming.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme:

[0006] A winding tool for end ring forming, comprising a shaft body and a winding support, the winding support is connected to the shaft body, and the shaft body can drive the winding support to rotate; a fastening structure is connected to the shaft body, and the winding support is connected to the shaft body through the fastening structure; a plurality of winding grooves are arranged on the winding support along the length direction of the shaft body, and the winding grooves are used for winding and solidifying fibers to form end rings.

[0007] Preferably, the winding support comprises a plurality of disc bodies, and each disc body comprises at least part of the winding grooves.

[0008] Preferably, part of the side surface of the disc body is a convex part, and the other part is a concave part; the concave part is at least part of the winding groove, and the convex parts on any two adjacent disc bodies are the winding grooves.

[0009] Preferably, the winding support further comprises a connecting rod, and the connecting rod can penetrate all the disc bodies.

[0010] Preferably, the fastening structure comprises a fixed ring fixedly connected to the shaft body and a movable ring adjustably connected to the shaft body; the fixed ring and the movable ring are arranged at two ends of the winding support, respectively.

[0011] Preferably, the moving ring and the shaft body are connected through threads.

[0012] Preferably, the moving ring comprises an adjusting part and an abutting part, the abutting part is adjustably connected on the adjusting part, and the adjusting part is used for connecting with the shaft body.

[0013] Preferably, the moving ring and the fixed ring are provided with friction layers capable of increasing friction on the abutting surfaces of the winding support.

[0014] Preferably, the shaft body is provided with lifting holes at two ends.

[0015] Preferably, the shaft body is provided with a transmission part at one end, and a center of an end surface of the other end of the shaft body is provided with a thimble hole.

[0016] Compared with the prior art, the winding tool for end ring forming has the following beneficial effects:

[0017] The application discloses a winding tool for end ring forming. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0019] Figure 1 is a structural schematic view of the present application;

[0020] Figure 2 is a structural schematic view of another angle of the present application;

[0021] Figure 3 is a sectional structural schematic view of the present application;

[0022] Figure 4 is Figure 3 is a local structural schematic view of A in the figure;

[0023] Figure 5 is a structural schematic view of another embodiment of the present application;

[0024] Figure 6 is a sectional structural schematic view of another embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the utility model is further illustrated below in combination with the drawings and through specific implementation manners.

[0026] In the description of the utility model, unless another explicit stipulation and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication of two elements or the interaction relationship of two elements.For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0027] In the utility model, unless another explicit stipulation and limitation, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them.Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] In the description of the utility model, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in description, and do not have special meaning.

[0029] As shown in Figures 1 to 4 The application discloses a winding tool for end ring forming, which comprises a shaft body 1 and a winding support 2, the winding support 2 is connected to the shaft body 1, and the shaft body 1 can drive the winding support 2 to rotate;The shaft body 1 is connected with a fastening structure, and the winding support 2 is connected to the shaft body 1 through the fastening structure;A plurality of winding grooves are arranged on the winding support 2 along the length direction of the shaft body 1, and the winding grooves are used for fiber winding and solidification to form an end ring.

[0030] The present application can perform winding and curing of multiple end rings through the winding support provided with a plurality of winding grooves, and the winding and curing of multiple end rings can be completed through single winding work, so that batch work can improve overall production efficiency and meet the production demand of low cost and high efficiency in the end ring production process.

[0031] The winding support 2 comprises a plurality of disc bodies 21, and each disc body 21 comprises at least part of the winding groove.

[0032] The winding support 2 is formed by stacking a plurality of disc bodies 21, and each disc body 21 can correspond to a winding groove. After the winding and curing of the end ring is completed, the plurality of disc bodies 21 on the winding support 2 are separated, and then the end ring is separated from the disc body 21, which reduces the difficulty of demolding the end ring, improves the demolding speed, and further improves the overall production efficiency.

[0033] Further, before the winding work starts, a demolding agent is applied in the winding groove to better reduce the demolding difficulty of the formed end ring and better improve the demolding speed.

[0034] Part of the side surface of the disc body 21 is a convex portion 211, and the other part is a concave portion 212. The concave portion 212 is at least part of the winding groove, and the convex portions 211 on any two adjacent disc bodies 21 are the winding groove.

[0035] After the fibers are impregnated with resin, a certain tension is applied to wind them in the concave portion 212. The fibers on the outermost side are flush with the convex portion 211, and the winding is completed. Through the above method, the size of the end ring is limited in the winding groove formed by the convex portion 211 and the concave portion 212, so that the size of the end ring can be more accurately controlled, and the yield of the end ring after winding and curing can be ensured to be higher.

[0036] Further, as shown in Figure 5 and 6 In another embodiment, the winding support 2 further comprises a connecting rod 22, and the connecting rod 22 can penetrate all the disc bodies 21.

[0037] By connecting all the disc bodies 21 through the connecting rod 22, it can be ensured that all the disc bodies 21 rotate together, avoiding the mutual rotation between the disc bodies 21 affecting the winding process of the fibers, and better ensuring the smooth progress of the winding work.

[0038] The two ends of the connecting rod 22 can also be provided with a limiting structure 221 to fasten the disc bodies 21, so that the plurality of disc bodies 21 can be connected as a whole. The limiting structure 221 can adopt one or more of the limiting methods such as threaded limiting, buckle limiting, and bolt limiting.

[0039] The fastening structure comprises a fixed ring 31 fixedly connected to the shaft body 1 and a movable ring 32 adjustably connected to the shaft body 1; the fixed ring 31 and the movable ring 32 are arranged at two ends of the winding support 2 respectively.

[0040] The winding support 2 is fastened from two ends of the winding support 2 by the fixed ring 31 and the movable ring 32, so that the winding support 2 can rotate together with the shaft body 1, and better winding effect is ensured.

[0041] In the embodiment, the movable ring 32 and the shaft body 1 are connected through threads, so that the winding support 2 of different sizes can be better adapted, and better applicability is ensured; in other embodiments, the movable ring 32 and the shaft body 1 can also be fastened through a latch, a buckle or the like.

[0042] Further, the movable ring 32 comprises an adjusting part 321 and an abutting part 322, the abutting part 322 is adjustably connected to the adjusting part 321, and the adjusting part 321 is used for being connected to the shaft body 1.

[0043] Through adjustment between the adjusting part 321 and the abutting part 322, the function of secondary adjustment is realized, the adjustment range is increased, and better adjustment effect is ensured; and in the embodiment, the adjusting part 321 and the abutting part 322 are also connected through threads, so that the function of anti-loosening is realized through setting of the thread direction, and better fastening effect of the fastening structure on the winding support 2 is ensured.

[0044] Further, one of the adjusting part 321 and the abutting part 322 is provided with a transmission block, and a transmission groove corresponding to the transmission block is arranged on the winding support 2; when the transmission block is engaged into the transmission groove, the part without the transmission block among the adjusting part 321 and the abutting part 322 can be rotated to fasten the winding support 2, so that better fastening effect is realized, and transmission is also realized, so that the winding support 2 can rotate together with the shaft body 1, and better winding effect is ensured.

[0045] Further, the abutting surfaces of the movable ring 32 and the fixed ring 31 and the winding support 2 are all provided with a friction layer capable of increasing friction.

[0046] Through the friction layer, the friction force on the abutting surfaces of the movable ring 32 and the winding support 2 and the abutting surfaces of the fixed ring 31 and the winding support 2 is increased, transmission of the shaft body 1 to the winding support 2 is realized through friction, the winding support 2 can rotate together with the shaft body 1, and better winding effect is ensured.

[0047] The two ends of the shaft body 1 are provided with lifting holes 11.

[0048] The one end of the shaft body 1 is connected with a transmission part 12, and the center of the end face of the other end of the shaft body 1 is provided with a thimble hole 13.

[0049] In the present embodiment, the cross section of the transmission member 12 is hexagonal, but in other embodiments, the cross section of the transmission member 12 can be any one or more of quadrangular, triangular, elliptical, etc. non-circular shapes.

[0050] Note that in the description of the present specification, the description referring to the terms "one embodiment", "in other embodiments", and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be appropriately combined in any one or more embodiments or examples.

[0051] The above merely describes the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A winding tool for end ring forming, characterized by: The application relates to a winding device for winding a fiber to form an end ring, which comprises a shaft body (1) and a winding support (2) connected to the shaft body (1) and capable of rotating with the shaft body (1); the shaft body (1) is provided with a fastening structure for connecting the winding support (2) to the shaft body (1); the winding support (2) is provided with a plurality of winding grooves along the length direction of the shaft body (1) and used for winding and solidifying the fiber to form an end ring.

2. A winding tool for forming an end ring according to claim 1, wherein: The winding support (2) comprises a plurality of disc bodies (21), and each disc body (21) is provided with at least part of the winding grooves.

3. A winding tool for forming an end ring according to claim 2, wherein: Part of the side surface of the disc body (21) is a convex part (211), and the other part is a concave part (212); the concave part (212) is at least part of the winding grooves, and the convex parts (211) on any two adjacent disc bodies (21) are the winding grooves.

4. The winding tool for end ring forming according to claim 2, wherein: The winding support (2) further comprises a connecting rod (22) capable of penetrating all the disc bodies (21).

5. The winding tool for end ring forming according to claim 1, wherein: The fastening structure comprises a fixed ring (31) fixedly connected to the shaft body (1) and a movable ring (32) adjustably connected to the shaft body (1); the fixed ring (31) and the movable ring (32) are arranged at two ends of the winding support (2) respectively.

6. A winding tool for forming an end ring according to claim 5, wherein: The movable ring (32) and the shaft body (1) are connected through threads.

7. A winding tool for forming an end ring as claimed in claim 5, wherein: The movable ring (32) comprises an adjusting part (321) and an abutting part (322), the abutting part (322) is adjustably connected to the adjusting part (321), and the adjusting part (321) is used for connecting the shaft body (1).

8. A winding tool for forming an end ring according to claim 5, wherein: The abutting surfaces of the movable ring (32), the fixed ring (31) and the winding support (2) are all provided with a friction layer capable of increasing friction.

9. The winding tool for end ring forming according to claim 1, wherein: Both ends of the shaft body (1) are provided with lifting holes (11).

10. The winding tool for end ring forming according to claim 1, wherein: One end of the shaft body (1) is connected with a transmission part (12), and the center of the end surface of the other end of the shaft body (1) is provided with a thimble hole (13).