Copper-plated spiral winding structure for high-temperature superconducting strip

Abstract

The invention relates to a copper-plated spiral winding structure for a high-temperature superconducting strip, which comprises a bottom plate, a rolling shaft, a guide wheel and an end cover, and is characterized in that one end of the rolling shaft is rotationally arranged on the bottom plate; the guide wheels are arranged on the outer side of the rolling shaft in series and operate independently, and an end cover is arranged at the other end of the rolling shaft and used for limiting the guide wheels installed on the rolling shaft. The guide wheel can independently and freely rotate on the rolling shaft, the rolling shaft also rotates, friction and resistance between the strip and the guide wheel are reduced, the strip is allowed to move more freely in the winding process, it is ensured that tension of the strip is kept consistent in the winding process, deformation or breakage of the superconducting strip caused by too large tension is avoided, and the superconducting strip winding efficiency is improved. The risk of product damage is reduced, the manufacturing quality and reliability of the superconducting tape are improved, the production cost is reduced, and the efficiency of the copper plating process is improved.

Description

Technical Field

[0001] The invention relates to the field of manufacturing high-temperature superconducting tape materials, in particular to a high-temperature superconducting tape copper-plated spiral winding structure. Background Art

[0002] In the manufacturing process of high-temperature superconducting tape materials, the copper plating process is a key step, which can not only enhance the mechanical properties of the tape, but also protect the superconducting film from damage by the external environment. However, the existing copper plating technology has some technical challenges and limitations, which mainly focus on the tension control of the superconducting tape during the copper plating process.

[0003] The traditional superconducting tape copper plating process uses an integrated guide wheel structure, which is fixed on the shaft through conductive bearings to form a spiral winding tape mode. The original intention of this design was to replace a single long copper plating slot in a limited space to achieve a compact process layout. Specifically, this process mode involves the use of 10 or more slots to achieve spiral winding of the tape through 4 sets of guide wheels. However, this design of fixed shaft and integrated guide wheels has significant problems in practical applications, as follows: Inconsistent tension: Due to the inconsistent thickness of the superconducting tape between each pass or the precision error of the processing diameter of each slot, the tension between each superconducting tape is different. This inconsistency in tension will cause the superconducting tape to deform or break during the winding process, thereby destroying the original superconducting film and causing the superconducting performance to fail.

[0004] Product damage: Due to the large finishing traction force, the superconducting tape is easily broken, causing serious product damage, which not only increases production costs, but also affects product reliability and consistency.

[0005] Low efficiency: The traditional fixed shaft and integrated guide wheel design restricts the free movement of the strip during the winding process, resulting in low copper plating efficiency and unable to meet the modern manufacturing requirements for high efficiency and high quality. Summary of the invention

[0006] To this end, the technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a high-temperature superconducting tape copper-plated spiral winding structure that can solve the problems of inconsistent tension and product damage in traditional designs, improve the stability and efficiency of the copper plating process, and thus produce superconducting tape products with better performance and greater reliability.

[0007] In order to solve the above technical problems, the present invention provides a high-temperature superconducting tape copper-plated spiral winding structure, comprising: a base plate, a roller, a guide wheel and an end cover, one end of the roller is rotatably set on the base plate; the guide wheel includes a plurality of guide wheels, which are arranged in series on the outside of the roller and operate independently, and an end cover is set at the other end of the roller for limiting the guide wheel installed on the roller.

[0008] In one embodiment of the present invention, the guide wheel includes a first guide wheel and a second guide wheel, and the first guide wheel is nested on the outside of the second guide wheel to form axial and radial contact therebetween; the axial contact allows the first guide wheel and the second guide wheel to rotate freely in the axial direction to adapt to changes in the thickness of the superconducting tape or errors in the outer diameter of the guide wheel contact; the radial contact forms a contact surface of 1-2 mm between the first guide wheel and the second guide wheel.

[0009] In one embodiment of the present invention, the edges of the first guide wheel and the second guide wheel are both provided with convex edges, and the convex edges are protruding along the circumferential direction of the first guide wheel and the second guide wheel.

[0010] In one embodiment of the present invention, the second guide wheel includes at least two wheel rims with different diameters, and the wheel rims are arranged along the axial direction to form a stepped structure.

[0011] In one embodiment of the present invention, the first guide wheel sleeve is arranged on the outer side of the wheel rim with a smaller diameter on the second guide wheel.

[0012] In one embodiment of the present invention, the first guide wheel and the second guide wheel have the same belt running diameter and width.

[0013] In one embodiment of the present invention, a first bearing is arranged between the second guide wheel and the roller, and a gasket is arranged between adjacent first bearings.

[0014] In one embodiment of the present invention, a second bearing is provided in the base plate, and a bearing seat is provided on the lower side of the base plate for fixing the second bearing on the base plate, and the other end of the roller is connected to the second bearing.

[0015] In one embodiment of the present invention, both ends of the roller are provided with threads, one end of the roller passes through the end cover and is threadedly connected to the locking member; the other end of the roller passes through the second bearing and is threadedly connected to the locking member.

[0016] In one embodiment of the present invention, both ends of the roller are provided with threads, one end of the roller is threadedly connected to the end cover; the other end of the roller passes through the second bearing and is threadedly connected to the locking member.

[0017] The above technical solution of the present invention has the following beneficial effects compared with the prior art: The invention discloses a high-temperature superconducting tape copper-plated spiral winding structure, in which the guide wheel can rotate independently and freely on the roller, and the roller itself also rotates, thereby reducing the friction and resistance between the tape and the guide wheel, allowing the tape to move more freely during the winding process, ensuring that the tension of the tape remains consistent during the winding process, avoiding deformation or breakage of the superconducting tape due to excessive tension, reducing the risk of product damage, improving the manufacturing quality and reliability of the superconducting tape, reducing production costs, and improving the efficiency of the copper plating process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein Figure 1 It is a schematic structural diagram of a superconducting tape copper-plated spirally wound guide wheel structure in a preferred embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of a guide wheel of a superconducting tape copper-plated spirally wound guide wheel structure shown; Figure 3 for Figure 2 Schematic diagram of the exploded structure of the guide wheel shown; Figure 4 for Figure 1 The schematic diagram of the structure of the roller, the first bearing and the second bearing of the superconducting tape copper-plated spirally wound guide wheel structure is shown.

[0019] Explanation of the reference numerals in the accompanying drawings in the specification: 1. base plate; 2. roller; 21. limit ring; 3. guide wheel; 31. first guide wheel; 32. second guide wheel; 4. end cover; 5. first bearing; 6. gasket; 7. bearing seat; 8. second bearing; 9. locking piece. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0021] Reference Figure 1 and 2 As shown, the present invention discloses a high-temperature superconducting tape copper-plated spiral winding structure, comprising: a base plate 1, a roller 2, a guide wheel 3 and an end cover 4, one end of the roller 2 is rotatably arranged on the base plate 1; the guide wheel 3 includes a plurality of guide wheels, which are arranged in series on the outside of the roller 2 and operate independently, and the other end of the roller 2 is provided with an end cover 4 for limiting the guide wheel 3 installed on the roller 2.

[0022] Based on the above structure, the guide wheel 3 can rotate independently and freely on the roller 2, and the roller 2 itself also rotates, reducing the friction and resistance between the strip and the guide wheel 3, allowing the strip to move more freely during the winding process, ensuring that the tension of the strip during the winding process remains consistent, avoiding deformation or breakage of the superconducting tape due to excessive tension, reducing the risk of product damage, and improving the manufacturing quality and reliability of the superconducting tape. The guide wheel 3 includes a first guide wheel 31 and a second guide wheel 32, wherein the first guide wheel 31 is nested on the outside of the second guide wheel 32, and an axial and radial contact is formed between the two. The axial contact allows the first guide wheel 31 and the second guide wheel 32 to rotate freely in the axial direction to adapt to the change in the thickness of the superconducting tape or the error in the contact outer diameter of the guide wheel. The radial contact forms a contact surface of 1-2 mm between the first guide wheel 31 and the second guide wheel 32. When the superconducting tape travels on the guide wheel 3, since the first guide wheel 31 and the second guide wheel 32 can operate independently, even if the thickness of the superconducting tape is different or there is an error in the contact outer diameter of the guide wheel 3, each superconducting tape can self-regulate its speed, so that the tension between each superconducting tape will not be greatly different, and the effect of slippage or different tightness of the tape is corrected, so as to minimize the problem of unstable tension slippage of the superconducting tape during contact and spiral winding, or the problem of excessive tension that cannot be freely decomposed and digested, thereby ensuring that the tension of the superconducting tape always remains stable and achieves the best effect.

[0023] Specifically, the edges of the first guide wheel 31 and the second guide wheel 32 are both provided with a convex edge 33, and the convex edge 33 is protruded along the circumferential direction of the first guide wheel 31 and the second guide wheel 32. The convex edge 33 is designed to protrude along the circumferential direction of the guide wheel 3, providing a limiting effect on the superconducting tape to prevent the superconducting tape from deviating during operation.

[0024] like Figure 3 As shown, the second guide wheel 32 includes at least two rims of different diameters, which are arranged axially to form a stepped structure. This design helps to combine the first guide wheel 31 with the second guide wheel 32 to adapt to superconducting tapes of different thicknesses, thereby improving the adaptability and flexibility of the guide wheel 3 to the tape.

[0025] The first guide wheel 31 is sleeved on the outer side of the wheel rim with a smaller diameter on the second guide wheel 32 .

[0026] The first guide wheel 31 and the second guide wheel 32 have the same belt running diameter and width, which ensures the smooth transition and continuity of the belt between different guide wheels 3 and reduces the change of belt tension caused by the size difference of the guide wheels 3.

[0027] A first bearing 5 is arranged between the second guide wheel 32 and the roller 2, and a gasket 6 is arranged between adjacent first bearings 5. The function of the first bearing 5 is to provide stable support and precise positioning for the second guide wheel 32, to ensure that the guide wheel 3 maintains an accurate position when running at high speed or bearing a large load, and to reduce vibration and wear caused by inaccurate positioning; the first bearing 5 can significantly reduce the direct contact friction between the guide wheel and the roller 2, thereby reducing energy consumption and extending the service life of the guide wheel 3 and the roller 2; the second guide wheel 32 can rotate freely along the roller 2, which is crucial to maintaining the consistency of the tension of the superconducting tape during the winding process, because the guide wheel 3 needs to be able to adapt to changes in the thickness of the tape and any outer diameter errors.

[0028] In this embodiment, a second bearing 8 is provided in the bottom plate 1 , and a bearing seat 7 is provided on the lower side of the bottom plate 1 for fixing the second bearing 8 on the bottom plate 1 . The other end of the roller 2 is connected to the second bearing 8 .

[0029] In addition, both ends of the roller 2 are provided with threads, one end of the roller 2 is threadedly connected to the end cover 4, and the other end of the roller 2 passes through the second bearing 8 and is threadedly connected to the locking member 9. This design provides a reliable fixing and adjustment method, facilitates the installation and maintenance of the roller 2, and at the same time enhances the fixing stability of the roller 2 and reduces the roller deviation caused by vibration or impact.

[0030] A limit ring 21 is provided on the roller 2 near the bottom plate 1 to prevent the first bearing 5 from moving or falling off in the axial direction. The design of the limit ring 21 improves the positioning accuracy and stability of the first bearing 5, reduces the risk of failure caused by displacement of the first bearing 5, and ensures the stable operation of the entire system.

[0031] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A high-temperature superconducting tape copper-plated spiral winding structure, characterized in that: include: A base plate, a roller, a guide wheel and an end cover, wherein one end of the roller is rotatably arranged on the base plate; the guide wheel comprises a plurality of guide wheels which are arranged in series on the outside of the roller and operate independently, and an end cover is arranged at the other end of the roller for limiting the guide wheel installed on the roller.

2. The high temperature superconducting tape copper-plated spiral winding structure according to claim 1, characterized in that: The guide wheel includes a first guide wheel and a second guide wheel, the first guide wheel is nested on the outside of the second guide wheel, and axial and radial contacts are formed therebetween; the axial contact allows the first guide wheel and the second guide wheel to rotate freely along the axial direction to adapt to changes in the thickness of the superconducting tape or errors in the outer diameters of the guide wheel contacts; the radial contact forms a contact surface of 1-2 mm between the first guide wheel and the second guide wheel.

3. The high temperature superconducting tape copper-plated spiral winding structure according to claim 2, characterized in that: The edges of the first guide wheel and the second guide wheel are both provided with convex edges, and the convex edges are protruding along the circumferential direction of the first guide wheel and the second guide wheel.

4. The high temperature superconducting tape copper-plated spiral winding structure according to claim 3, characterized in that: The second guide wheel includes at least two wheel rims with different diameters, and the wheel rims are arranged along the axial direction to form a stepped structure.

5. The high temperature superconducting tape copper-plated spiral winding structure according to claim 4, characterized in that: The first guide wheel sleeve is arranged on the outer side of the wheel rim with a smaller diameter on the second guide wheel.

6. The high temperature superconducting tape copper-plated spiral winding structure according to claim 5, characterized in that: The first guide wheel and the second guide wheel have the same belt running diameter and width.

7. The high temperature superconducting tape copper-plated spiral winding structure according to claim 1, characterized in that: A first bearing is arranged between the second guide wheel and the roller, and a gasket is arranged between adjacent first bearings.

8. The high temperature superconducting tape copper-plated spiral winding structure according to claim 1, characterized in that: A second bearing is arranged in the bottom plate, and a bearing seat is arranged on the lower side of the bottom plate for fixing the second bearing on the bottom plate, and the other end of the roller is connected to the second bearing.

9. The high temperature superconducting tape copper-plated spiral winding structure according to claim 1, characterized in that: Both ends of the roller are provided with threads, one end of the roller is threadedly connected with the end cover; the other end of the roller passes through the second bearing and is threadedly connected with the locking member.

10. The high temperature superconducting tape copper-plated spirally wound structure according to claim 9, characterized in that: A limit ring is provided on the roller along a position close to the bottom plate to prevent the first bearing from moving or falling off in the axial direction.

Images