A sun roller winding framework and a method of applying the same

Abstract

The application relates to the field of battery diaphragm production, and relates to a sun gear winding framework and an application method thereof.The sun gear winding framework comprises an inner ring body and an outer ring body, the inner ring body is used for sleeving the outer periphery of a gas expansion shaft, the inner ring body is provided with an inner separation slot, the inner separation slot penetrates the inner ring body, the outer ring body is coaxially sleeved on the outer periphery of the inner ring body, the inner ring body and the outer ring body are in interference fit, the outer periphery of the outer ring body is used for abutting against the inner wall of a winding drum, the outer ring body is provided with an outer separation slot, the outer separation slot penetrates the outer ring body, and the outer separation slot is flush with the side wall along the circumferential two sides of the inner ring body. The inner separation slot and the outer separation slot are arranged, the inner ring body and the outer ring body have certain ductility, the sun gear framework is convenient to abut against the inner wall of the winding drum under the action of the gas expansion shaft, circumferential fixing of the winding drum and the gas expansion shaft is realized, the application range of the gas expansion shaft is improved, the replacement process of the winding drum is simplified, the sun gear framework is composed of the inner ring body and the outer ring body, the separate replacement of the inner ring body or the outer ring body is facilitated, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of battery separator production, and in particular to a solar wheel winding frame and its application method. Background Technology

[0002] In the new energy industry, a separator is a product used in batteries. On the one hand, it isolates the positive and negative electrodes of the battery to reduce the risk of short circuits. On the other hand, it allows ions in the electrolyte to pass through.

[0003] In industrial production, separators are often manufactured using a winding process. A winding drum is placed on the air shaft of a winding machine, and the air shaft is opened to secure the drum. The separator is then fixed to the drum, and the winding motor is started to wind the separator onto the drum. Because different lithium battery winding machines exist, the dimensions of the winding drums are not entirely the same. When changing to a winding drum of a different diameter, if the diameter exceeds the maximum diameter of the air shaft, a new air shaft must be installed before processing can continue.

[0004] However, air shafts are relatively large and heavy, have high operating costs, and are cumbersome to replace. Summary of the Invention

[0005] In order to improve the applicability of air shafts and reduce production costs, this application provides a sun gear winding frame and its application method.

[0006] In the first aspect, this application provides a sun gear winding frame, which adopts the following technical solution: A sun gear winding frame includes an inner ring body and an outer ring body. The inner ring body is fitted around the outer periphery of an air shaft and has an inner partition slit that extends through the inner ring body along its axial direction. The outer ring body is coaxially fitted around the outer periphery of the inner ring body. The inner and outer ring bodies are interference-fitted. The outer periphery of the outer ring body is used to press against the inner wall of the winding drum. The outer ring body has an outer partition slit that extends through the outer ring body along the length of the inner partition slit. The sidewalls of the outer partition slit along both sides of the outer ring body are flush with the sidewalls of the inner partition slit along both sides of the inner ring body.

[0007] By adopting the above technical solution, and setting inner and outer partition seams, the inner and outer rings have a certain degree of extensibility, which facilitates the sun gear frame to press against the inner wall of the winding drum under the action of the air shaft, thereby achieving circumferential fixation of the winding drum and the air shaft, improving the applicability of the air shaft, and simplifying the replacement process of the winding drum. The sun gear frame is composed of an inner ring and an outer ring, which facilitates the individual replacement of the inner or outer ring and reduces production costs.

[0008] Preferably, the outer ring body includes an abutting part, a connecting part, and a connecting component. The abutting part and the connecting part are both sleeved on the outer periphery of the inner ring body. One end of the connecting part along the axial direction of the inner ring body abuts against one end of the abutting part. The connecting component is connected between the abutting part and the connecting part to fix the abutting part and the connecting part.

[0009] By adopting the above technical solution, the outer ring body is composed of an abutment part and a connecting part, and the abutment part and the connecting part are connected by a connecting component, which helps to produce the abutment part or the connecting part separately and improves the production efficiency of the outer ring body; and the abutment part or the connecting part can be replaced separately, reducing production costs.

[0010] Preferably, it also includes a pin, the abutting part is provided with a first connecting hole, the connecting part is provided with a second connecting hole, the inner ring body is provided with a fixing hole on the side near the outer ring body, and the pin is inserted into the fixing hole after passing through the first connecting hole or the second connecting hole.

[0011] By adopting the above technical solution, the pin passes through the first connecting hole or the second connecting hole and is threadedly connected to the fixing hole, thereby fixing the abutting part or connecting part to the inner ring body; it helps to align the outer partition seam with the inner partition seam, so that when the outer ring body and the inner ring body extend outward, the outer ring body and the inner ring body work in the same way, thereby improving the structural stability of the sun gear frame.

[0012] Preferably, a plurality of support ribs are connected to the outer wall of the outer ring body. The length direction of the support ribs is parallel to the axial direction of the outer ring body. The plurality of support ribs are distributed at intervals along the circumference of the outer ring body. The side surface of the support rib away from the inner ring body is used to press against the inner wall of the winding drum. The support rib includes a first support section and a second support section. The first support section is connected to the outer periphery of the abutment part, and the second support section is connected to the outer periphery of the connecting part.

[0013] By adopting the above technical solution, the first support section improves the structural strength of the contact part, the second support section improves the structural strength of the connection part, and the service life of the sun gear frame is improved; by the first support section and the second support section pressing against the inner wall of the take-up drum, the friction between the outer ring body and the take-up drum is improved, and the stability of the connection between the outer ring body and the take-up drum is improved.

[0014] Preferably, the second support section has a first chamfer at one end along its length away from the first support section, and the first chamfer is used for contact with the inner wall of the winding drum.

[0015] By adopting the above technical solution, the first chamfer is used to abut against the inner wall of the receiving drum, which plays a guiding role in the installation of the taking-up drum, making it easier to install the taking-up drum and improving production efficiency.

[0016] Preferably, a plurality of positioning blocks are connected to the outer wall of the abutting part on the side away from the connecting part. The plurality of positioning blocks are distributed at intervals along the circumference of the outer ring body. The positioning blocks are used to abut one end of the receiving drum along the axial direction of the inner ring body.

[0017] By adopting the above technical solution, the positioning block is used to abut the end of the receiving drum, thereby achieving precise positioning of the taking-up drum, simplifying the installation process of the taking-up drum, and improving work efficiency.

[0018] Preferably, an abutting block is connected to the inner wall of the abutting part on the side away from the connecting part, and the abutting block is used for one end of the inner ring body to abut along the axial direction.

[0019] By adopting the above technical solution, the abutment part and the inner ring body are relatively fixed along the axial direction, which helps to make the first connecting hole and the fixing hole face each other, and facilitates the pin to be inserted into the first connecting hole and the fixing hole to achieve relative fixation of the inner ring body and the abutment part.

[0020] Preferably, a first limiting strip is connected to the inner wall of the abutting part, the length direction of the first limiting strip is parallel to the axis of the inner ring body, a second limiting strip is connected to the inner wall of the connecting part, the length direction of the second limiting strip coincides with the length direction of the first limiting strip, and a limiting groove is provided on the outer wall of the inner ring body for the first and second limiting strips to be embedded.

[0021] By adopting the above technical solution, the first limiting strip and the second limiting strip are slidably embedded in the limiting groove, which plays a guiding role in the installation of the abutting part and the connecting part, helps to make the outer partition seam and the inner partition seam aligned, and achieves relative fixation of the abutting part and the connecting part with the inner ring body in the circumferential direction, thereby improving the stability of the connection between the outer ring body and the inner ring body.

[0022] Preferably, the connecting assembly includes a fixing block and a resetting member. An insert is connected to one end of the connecting portion near the abutment portion. The length direction of the insert is parallel to the axis of the inner ring body. A fixing groove is provided on the side wall of the insert perpendicular to the length direction of the insert. The fixing block is slidably connected to the abutment portion. The sliding direction of the fixing block is parallel to the length direction of the fixing groove. The resetting member is connected between the fixing block and the abutment portion. The resetting member makes the fixing block tend to embed into the fixing groove.

[0023] By adopting the above technical solution, the fixing block is embedded in the fixing groove under the action of the resetting member, thereby achieving relative fixation between the abutment part and the connecting part, initially fixing the connecting part, and facilitating the fixation between the connecting part and the inner ring body.

[0024] Secondly, this application provides a method for applying a sun gear winding frame, which adopts the following technical solution: A method for applying a sun gear winding frame includes the following application steps. S1: Based on the diameters of the winding drum and the air shaft, select appropriate sizes for the inner ring body, the abutment part, and the connecting part. Sleeve the abutment part onto the outer circumference of the inner ring body along its axial direction. When the first connecting hole and the fixing hole are aligned, insert the pin into the first connecting hole and the fixing hole to achieve relative fixation between the abutment part and the inner ring body. Sleeve the connecting part onto the outer circumference of the inner ring body. When the second connecting hole and the fixing hole are aligned, insert the pin into the second connecting hole and the fixing hole to achieve relative fixation between the connecting part and the inner ring body, thus completing the assembly of the sun gear frame. S2: The sun gear frame is fitted onto the outer circumference of the air shaft along the inner ring axis, and the winding drum is fitted onto the outer circumference of the outer ring along the inner ring axis, with one end of the winding drum abutting against the positioning block. S3: The air shaft expands by air, causing it to abut against the inner wall of the inner ring, which in turn causes the inner ring to extend outward, leading to the outer ring to extend outward as well. This causes the side of the support rib away from the outer ring to press against the inner wall of the winding drum, thus achieving relative fixation of the winding drum and the air shaft in the circumferential direction.

[0025] By adopting the above technical solution, the sun gear frame is fitted onto the outer circumference of the air shaft, allowing more sizes of take-up drums to be fixed after the same air shaft expands, thus improving the applicability of the air shaft. There is no need to replace the air shaft; by replacing different models of sun gear frames, different sizes of take-up drums can be fixed, improving work efficiency and reducing production costs.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The design incorporates inner and outer partitions, giving the inner and outer rings a degree of flexibility. This allows the sun gear frame to be pressed tightly against the inner wall of the winding drum under the action of the air shaft, achieving circumferential fixation of the winding drum and the air shaft. This expands the applicability of the air shaft and simplifies the winding drum replacement process. The sun gear frame, composed of an inner and outer ring, facilitates the individual replacement of either the inner or outer ring, reducing production costs. 2. The first support section improves the structural strength of the contact part, and the second support section improves the structural strength of the connection part, thereby increasing the service life of the sun gear frame; by having the first support section and the second support section press against the inner wall of the take-up drum, the friction between the outer ring body and the take-up drum is increased, thereby improving the stability of the connection between the outer ring body and the take-up drum; 3. The positioning block is used to abut the end of the receiving drum to achieve precise positioning of the take-up drum, simplify the installation process of the take-up drum, and improve work efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the sun gear winding frame of Example 1.

[0028] Figure 2 This is a cross-sectional view of the sun gear winding frame of Example 1.

[0029] Figure 3 This is an exploded structural diagram of the sun gear winding frame of Example 1.

[0030] Figure 4 This is a partial cross-sectional view of the sun gear winding frame of Example 1.

[0031] Figure 5 This is a partial cross-sectional view of the sun gear winding frame of Example 1.

[0032] Figure 6 This is a partial cross-sectional view of the sun gear winding frame of Example 2.

[0033] Figure 7 This is a partial cross-sectional view of the sun gear winding frame of Example 2.

[0034] Figure 8 This is a schematic diagram of the connection component in Embodiment 2.

[0035] Figure 9 This is a partial cross-sectional view of the sun gear winding frame of Example 2.

[0036] Explanation of reference numerals in the attached figures: 1. Inner ring; 11. Inner partition joint; 12. Fixing hole; 13. Limiting groove; 14. Abutment groove; 2. Outer ring body; 21. Outer partition joint; 22. Abutting part; 221. First connecting hole; 222. Positioning block; 223. Abutting block; 224. First limiting strip; 2241. First rounded corner; 225. Insert groove; 226. Sliding groove; 227. Adjusting groove; 228. Connecting groove; 229. Rotating groove; 23. Connecting part; 231. Second connecting hole; 232. Second limiting strip; 2321. Second rounded corner; 233. Insert; 2331. Fixing groove; 24. Connecting assembly; 241. Fixing block; 2411. Second chamfer; 242. Reset part; 243. Adjusting block; 244. Connecting block; 245. Rotating ring; 25. Support rib; 251. First support section; 252. Second support section; 2521. First chamfer; 3. Pin. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] This application discloses a sun gear winding frame.

[0039] Example 1 Reference Figure 1A sun gear winding frame includes an inner ring body 1. The inner ring body 1 is used to fit around the outer periphery of the air shaft, and the inner ring body 1 is made of high-toughness plastic. In this embodiment, the inner ring body 1 is made of polyurethane plastic. The inner ring body 1 is provided with an inner partition 11, which penetrates the inner ring body 1 along the axial direction.

[0040] A sun gear winding frame also includes an outer ring body 2. The outer ring body 2 is coaxially sleeved on the outer periphery of the inner ring body 1, and the inner ring body 1 and the outer ring body 2 are press-fitted together. The outer periphery of the outer ring body 2 is used to press against the inner wall of the winding drum. The outer ring body 2 is made of high-hardness plastic material. In this embodiment, the outer ring body 2 is made of polyimide or polycarbonate material. The outer ring body 2 is provided with an outer dividing slit 21, which extends through the outer ring body 2 along the length direction of the inner dividing slit 11. The sidewalls of the outer dividing slit 21 along the circumference of the outer ring body 2 are flush with the sidewalls of the inner dividing slit 11 along the circumference of the inner ring body 1.

[0041] Reference Figure 1 and Figure 2 The outer ring body 2 includes an abutment portion 22, which is sleeved on the outer periphery of the inner ring body 1. An abutment groove 14 is provided on the outer periphery of one end of the inner ring body 1 along the axial direction. An abutment block 223 is fixedly connected to the inner wall of the abutment portion 22 along the axial direction of the inner ring body 1, and the abutment block 223 is embedded in the abutment groove 14. In this embodiment, the abutment block 223 is arc-shaped, its axis coincides with the axis of the abutment portion 22, and its sidewall is in contact with the wall of the abutment groove 14.

[0042] Reference Figure 2 and Figure 3 A fixing hole 12 is provided on the outer wall of the inner ring body 1. The fixing hole 12 is equidistant from the side walls on both sides of the inner partition joint 11 along the circumference of the inner ring body 1. In this embodiment, there are two fixing holes 12, which are spaced apart along the axial direction of the inner ring body 1. A limiting groove 13 is provided on the outer circumference of the inner ring body 1, which penetrates the inner ring body 1 along the axial direction of the inner ring body 1. In this embodiment, there are two limiting grooves 13, which are located on both sides of the inner fixing hole 12 along the circumference of the inner ring body 1. A first limiting strip 224 is fixedly connected to the inner wall of the abutment part 22. The length direction of the first limiting strip 224 is parallel to the length direction of the limiting groove 13. The number of first limiting strips 224 is the same as the number of limiting grooves 13 and they correspond one-to-one. The first limiting strip 224 is slidably embedded in the limiting groove 13, and the sliding direction of the first limiting strip 224 is parallel to the length direction of the limiting groove 13. The first limit bar 224 has a first rounded corner 2241 at one end away from the abutting block 223 along the length direction of the first limit bar 224. The first rounded corner 2241 is located on the side of the first limit bar 224 away from the abutting part 22, and the first rounded corner 2241 is used for the groove wall of the limit groove 13 to abut.

[0043] A sun gear winding frame also includes a pin 3. The outer ring 2 also includes a connecting part 23, which is sleeved on the outer periphery of the inner ring 1. One end of the connecting part 23 along the axial direction of the inner ring 1 abuts against the end of the abutting part 22 away from the abutting block 223. The abutting part 22 is provided with a first connecting hole 221, the axis of which coincides with the axis of the fixing hole 12 near the abutting groove 14. The pin 3 passes through the first connecting hole 221 and is threadedly connected to the fixing hole 12. The connecting part 23 is provided with a second connecting hole 231, the axis of which coincides with the axis of another fixing hole 12. The pin 3 passes through the second connecting hole 231 and is threadedly connected to the fixing hole 12. A second limiting strip 232 is fixedly connected to the inner wall of the connecting part 23. The length direction of the second limiting strip 232 is parallel to the length direction of the limiting groove 13. The number of second limiting strips 232 is the same as the number of limiting grooves 13 and they correspond one-to-one. The second limiting strip 232 is slidably embedded in the limiting groove 13, and the sliding direction of the second limiting strip 232 is parallel to the length direction of the limiting groove 13. The second limiting strip 232 has a second rounded corner 2321 at one end along the length direction of the second limiting strip 232 near the first limiting strip 224. The second rounded corner 2321 is located on the side away from the connecting part 23, and the second rounded corner 2321 is used for the groove wall of the limiting groove 13 to abut.

[0044] Reference Figure 3 and Figure 4 The outer ring 2 also includes a connecting component 24, which connects the abutment portion 22 and the connecting portion 23 to fix the abutment portion 22 and the connecting portion 23. A plurality of inserts 233 are fixedly connected to one end of the connecting portion 23 near the abutment portion 22. The inserts 233 are evenly distributed circumferentially around the axis of the inner ring 1, and the length direction of the inserts 233 is parallel to the axis direction of the inner ring 1. In this embodiment, four inserts 233 are provided. A groove 225 is provided at one end of the abutment portion 22 near the connecting portion 23. The number of grooves 225 is the same as the number of inserts 233 and they correspond one-to-one. The grooves 225 are used for inserts 233 to be inserted. A sliding groove 226 is provided on the wall of the groove 225, and the sliding groove 226 extends along a direction perpendicular to the length of the groove 225. The connecting assembly 24 includes a fixing block 241 and a resetting member 242. The number of fixing blocks 241 and resetting members 242 is the same as the number of inserts 233 and they correspond one-to-one. The fixing block 241 is slidably embedded in the slide groove 226 along its length. The end of the fixing block 241 near the insert 226 is provided with a second chamfer 2411. The second chamfer 2411 is located on the side of the fixing block 241 near the connecting part 23 and is used for the end of the insert 233 away from the connecting part 23 to abut. The insert 233 is provided with a fixing groove 2331, which extends along the sliding direction of the fixing block 241 and is used for the fixing block 241 to be embedded.

[0045] Reference Figure 4 and Figure 5An adjusting groove 227 is provided on the side wall of the sliding groove 226 away from the inner ring 1. The adjusting groove 227 is connected to the outside. An adjusting block 243 is fixedly connected to the side wall of the fixing block 241. The adjusting block 243 is slidably embedded in the adjusting groove 227, and the sliding direction of the adjusting block 243 is parallel to the sliding direction of the fixing block 241. A reset member 242 is connected between the abutment part 22 and the adjusting block 243. The reset member 242 makes the fixing block 241 tend to embed into the fixing groove 2331. In this embodiment, the reset member 242 is a spring. One end of the reset member 242 is connected to the side surface of the adjusting block 243 near the insert 233, and the other end of the reset member 242 is connected to the side wall of the adjusting groove 227 near the insert 233.

[0046] Reference Figure 3 The outer ring body 2 also includes a support rib 25, which includes a first support segment 251 and a second support segment 252. The surfaces of the first support segment 251 and the second support segment 252 away from the inner ring body 1 are both used to abut against the inner wall of the winding drum. The first support segment 251 is fixedly connected to the outer periphery of the abutment portion 22, and the length direction of the first support segment 251 is parallel to the axial direction of the inner ring body 1. There are several first support segments 251, which are distributed at intervals along the circumference of the abutment portion 22. In this embodiment, there are sixteen first support segments 251, which are evenly distributed along the circumference of the abutment portion 22. A positioning block 222 is fixedly connected to the outer periphery of the abutment portion 22 on the side away from the connecting portion 23. The distance from the surface of the positioning block 222 away from the inner ring body 1 to the outer wall of the abutment portion 22 is greater than the distance from the surface of the first support section 251 away from the outer ring body 2 to the outer wall of the abutment portion 22. The surface of the positioning block 222 near the first support section 251 is used for the end of the winding drum along the axial direction of the inner ring body 1 to abut. In this embodiment, the number of positioning blocks 222 is the same as the number of first support sections 251 and they correspond one-to-one. The second support section 252 is fixedly connected to the outer periphery of the connecting section. The length direction of the second support section 252 is parallel to the length direction of the first support section 251, and the number of second support sections 252 is the same as the number of first support sections 251 and they correspond one-to-one. The second support section 252 is provided with a first chamfer 2521 at the end away from the first support section 251. The first chamfer 2521 is located on the side of the second support section 252 away from the inner ring body 1. The first chamfer 2521 is used for the inner wall of the winding drum to abut.

[0047] The implementation principle of Example 1 is as follows: the first rounded corner 2241 abuts against the side wall of the limiting groove 13 near the abutting groove 14, the first limiting strip 224 slides into the limiting groove 13 until the groove wall of the abutting block 223 fits against the groove wall of the abutting groove 14, the pin 3 passes through the first connecting hole 221 and is threadedly connected to the fixing hole 12 to achieve relative fixation between the abutting part 22 and the inner ring body 1.

[0048] The second rounded corner 2321 abuts against the side wall of the limiting groove 13 away from the abutting groove 14, and the second limiting strip 232 slides into the limiting groove 13. The insert 233 slides into the insert groove 225, and the end of the insert 233 away from the connecting part 23 abuts against the second chamfer 2411. The second chamfer 2411 overcomes the reset member 242 and disengages from the insert into the sliding groove 226 until the fixing groove 2331 is aligned with the sliding groove 226. Under the elastic force of the reset member 242, the fixing block 241 is inserted into the fixing groove 2331, realizing the relative fixation of the abutting part 22 and the connecting part 23. After the pin 3 passes through the second connecting hole 231, it is threaded into the fixing hole 12 to realize the relative fixation of the connecting part 23 and the inner ring 1.

[0049] When the connecting part 23 needs to be replaced, loosen the pin 3 so that the pin 3 disengages from the inner fixing hole 12 and the second connecting hole 231, push the adjusting block 243 to overcome the elastic force of the reset member 242 and slide away from the insert 233, thereby driving the fixing block 241 to disengage from the fixing groove 2331, thereby releasing the lock between the abutment part 22 and the connecting part 23, making it easier to remove the connecting part 23.

[0050] In use, the inner ring 1 is fitted onto the outer circumference of the air shaft, and the take-up drum is fitted onto the outer circumference of the outer ring 2. One end of the take-up drum abuts against the positioning block 222, and air is introduced into the air shaft, causing the air shaft to expand and abut against the inner wall of the inner ring 1, causing the inner ring 1 to extend outward, which in turn causes the outer ring 2 to extend outward, so that the first support section 251 and the second support section 252 press against the inner wall of the take-up drum, thereby achieving relative fixation of the air shaft and the take-up drum in the circumferential direction and improving the applicability of the air shaft.

[0051] Example 2 Reference Figure 6 and Figure 7 The difference between this embodiment and Embodiment 1 is that the slide groove 226 is arc-shaped, and the fixing block 241 is rotatably embedded in the slide groove 226, with the rotation axis of the fixing block 241 coinciding with the axis of the inner ring 1. A connecting groove 228 is provided on the side wall of the slide groove 226 away from the connecting part 23, and a rotating groove 229 is provided on the side of the connecting groove 228 away from the slide groove 226.

[0052] Reference Figure 7 and Figure 8 The connecting assembly 24 also includes a connecting block 244 and a rotating ring 245. One end of the connecting block 244 is fixedly connected to the end of the fixing block 241 away from the insert 233, and the length direction of the connecting block 244 is parallel to the length direction of the insert 233. The other end of the connecting block 244 passes through the connecting groove 228 and extends into the rotating groove 229. The rotating ring 245 is rotatably embedded in the rotating groove 229, and the rotation axis of the rotating groove 229 coincides with the rotation axis of the fixing block 241. The end of the connecting block 244 extending into the rotating groove 229 is fixedly connected to the side surface of the rotating ring 245 near the connecting portion 23.

[0053] Reference Figure 8 and Figure 9 An adjustment groove 227 is provided on the side wall of the rotating groove 229 away from the inner ring body 1. The adjustment groove 227 is connected to the outside. An adjustment block 243 is fixedly connected to the side surface of the rotating ring 245 away from the inner ring body 1. The adjustment block 243 is rotatably embedded in the adjustment groove 227. The rotation axis of the adjustment block 243 coincides with the rotation axis of the rotating ring 245.

[0054] The implementation principle of Example 2 is as follows: When replacing the connecting part 23, the adjusting block 243 is pushed to overcome the elastic force of the reset member 242 and rotate away from the insert 233, which drives the rotating ring 245 to rotate, drives the connecting block 244 to rotate, and drives the fixing block 241 to disengage from the fixing groove 2331, thereby releasing the lock between the abutment part 22 and the connecting part 23, making it easier to remove the connecting part 23.

[0055] This application also discloses an application method for a sun gear winding skeleton, including steps S1-S3.

[0056] S1: Based on the diameters of the winding drum and the air shaft, select an appropriate size for the inner ring 1, the abutment part 22, and the connecting part 23. Sleeve the abutment part 22 axially around the outer circumference of the inner ring 1. When the first connecting hole 221 is aligned with the fixing hole 12, insert the pin 3 into the first connecting hole 221 and the fixing hole 12 to achieve relative fixation between the abutment part 22 and the inner ring 1. Sleeve the connecting part 23 around the outer circumference of the inner ring 1. When the second connecting hole 231 is aligned with the fixing hole 12, insert the pin 3 into the second connecting hole 231 and the fixing hole 12 to achieve relative fixation between the connecting part 23 and the inner ring 1, thus completing the assembly of the sun gear frame. S2: The sun gear frame is fitted onto the outer circumference of the air shaft along the axial direction of the inner ring 1, and the winding drum is fitted onto the outer circumference of the outer ring 2 along the axial direction of the inner ring 1, with one end of the winding drum abutting against the positioning block 222. S3: The air shaft expands by air, causing it to abut against the inner wall of the inner ring 1, which in turn causes the inner ring 1 to extend outward, driving the outer ring 2 to extend outward. This causes the surface of the support rib 25 away from the outer ring 2 to press against the inner wall of the winding drum, thus achieving relative fixation of the winding drum and the air shaft in the circumferential direction.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sun gear winding frame, characterized in that: The device includes an inner ring (1) and an outer ring (2); the inner ring (1) is fitted around the outer circumference of the air shaft; the inner ring (1) has an inner partition (11); the inner partition (11) passes through the inner ring (1) along the axial direction of the inner ring (1); the outer ring (2) is coaxially fitted around the outer circumference of the inner ring (1); the inner ring (1) and the outer ring (2) are interference-fitted; the outer circumference of the outer ring (2) is used to press against the inner wall of the winding drum; the outer ring (2) has an outer partition (21); the outer partition (21) passes through the outer ring (2) along the length direction of the inner partition (11); the outer partition (21) is flush with the sidewalls of the outer ring (2) along the circumference of the inner ring (1) on both sides; The outer ring (2) includes an abutment part (22), a connecting part (23), and a connecting component (24); the abutment part (22) and the connecting part (23) are both sleeved on the outer periphery of the inner ring (1); one end of the connecting part (23) along the axial direction of the inner ring (1) abuts against one end of the abutment part (22); the connecting component (24) is connected between the abutment part (22) and the connecting part (23) to fix the abutment part (22) and the connecting part (23). It also includes a pin (3); the abutment part (22) is provided with a first connecting hole (221); the connecting part (23) is provided with a second connecting hole (231); the inner ring body (1) is provided with a fixing hole (12) on the side near the outer ring body (2); the pin (3) passes through the first connecting hole (221) or the second connecting hole (231) and is then embedded in the fixing hole (12); The connecting assembly (24) includes a fixing block (241) and a resetting member (242); the connecting part (23) is connected to an insert (233) at one end near the abutment part (22); the length direction of the insert (233) is parallel to the axis of the inner ring (1); a fixing groove (2331) is provided on the side wall of the insert (233) perpendicular to the length direction of the insert (233); the fixing block (241) is slidably connected to the abutment part (22); the sliding direction of the fixing block (241) is parallel to the length direction of the fixing groove (2331); the resetting member (242) is connected between the fixing block (241) and the abutment part (22); the resetting member (242) makes the fixing block (241) tend to be embedded in the fixing groove (2331).

2. The sun gear winding frame according to claim 1, characterized in that: The outer ring (2) is connected to a plurality of support ribs (25); the length direction of the support ribs (25) is parallel to the axial direction of the outer ring (2); the plurality of support ribs (25) are distributed at intervals along the circumference of the outer ring (2); the side surface of the support ribs (25) away from the inner ring (1) is used to abut against the inner wall of the winding drum; the support ribs (25) include a first support section (251) and a second support section (252); the first support section (251) is connected to the outer periphery of the abutment part (22); the second support section (252) is connected to the outer periphery of the connecting part (23).

3. The sun gear winding frame according to claim 2, characterized in that: The second support section (252) has a first chamfer (2521) at one end along its length away from the first support section (251); the first chamfer (2521) is used for contact with the inner wall of the winding drum.

4. The sun gear winding frame according to claim 1, characterized in that: A plurality of positioning blocks (222) are connected to the outer wall of the abutting part (22) away from the connecting part (23); the plurality of positioning blocks (222) are distributed circumferentially along the outer ring body (2); the positioning blocks (222) are used to abut one end of the receiving drum along the axis of the inner ring body (1).

5. The sun gear winding frame according to claim 1, characterized in that: The abutting part (22) is connected to an abutting block (223) on the inner wall of the side away from the connecting part (23); the abutting block (223) is used for the inner ring body (1) to abut one end along the axial direction.

6. The sun gear winding frame according to claim 1, characterized in that: A first limiting strip (224) is connected to the inner wall of the abutment part (22); the length direction of the first limiting strip (224) is parallel to the axis direction of the inner ring body (1); a second limiting strip (232) is connected to the inner wall of the connecting part (23); the length direction of the second limiting strip (232) coincides with the length direction of the first limiting strip (224); a limiting groove (13) is provided on the outer wall of the inner ring body (1); the limiting groove (13) is used for the first limiting strip (224) and the second limiting strip (232) to be embedded.

7. A method for applying a sun gear winding frame, comprising a sun gear winding frame as described in any one of claims 1-6, characterized in that: The application steps include the following: S1: Select appropriate sizes for the inner ring (1), abutment (22), and connecting part (23) according to the diameter of the winding drum and the air shaft. Sleeve the abutment (22) around the outer circumference of the inner ring (1) along the axial direction of the inner ring (1). When the first connecting hole (221) is aligned with the fixing hole (12), insert the pin (3) into the first connecting hole (221) and the fixing hole (12) to achieve relative fixation between the abutment (22) and the inner ring (1). Sleeve the connecting part (23) around the outer circumference of the inner ring (1). When the second connecting hole (231) is aligned with the fixing hole (12), insert the pin (3) into the second connecting hole (231) and the fixing hole (12) to achieve relative fixation between the connecting part (23) and the inner ring (1) to complete the assembly of the sun gear frame. S2: The sun gear frame is fitted onto the outer circumference of the air shaft along the inner ring body (1) axial direction, and the winding drum is fitted onto the outer circumference of the outer ring body (2) along the inner ring body (1) axial direction, with one end of the winding drum abutting against the positioning block (222). S3: The air shaft expands through the air, causing it to abut against the inner wall of the inner ring (1), which causes the inner ring (1) to extend outward, driving the outer ring (2) to extend outward. This causes the surface of the support rib (25) away from the outer ring (2) to press against the inner wall of the winding drum, thus achieving relative fixation of the winding drum and the air shaft in the circumferential direction.

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