Roller structure

Abstract

This utility model discloses a winding structure, which includes a winding shaft with radially penetrating mounting holes at both axial ends. The portion of the winding shaft between the two mounting holes is used for winding material. Two mounting bushings are fitted onto the axial ends of the winding shaft, one for each. Two baffles are disposed on the outer periphery of the mounting bushings, one for each, between the two mounting holes. The two baffles are used to block and limit the axial ends of the wound material. Two locking members are corresponding to the two mounting bushings. The locking members are detachably connected to the mounting bushings and can pass through the mounting holes to connect the winding shaft and the mounting bushings, or exit from the mounting holes to disconnect the winding shaft and the mounting bushings. Through the cooperation of the winding shaft, the mounting bushings, and the locking members, the winding shaft can be easily disassembled and assembled. Furthermore, the locking members can penetrate the winding shaft and lock the winding shaft and the mounting bushings circumferentially, solving the problem of easy loosening between the winding shaft and the mounting bushings.

Description

Technical Field

[0001] This application relates to the field of reels, and particularly to a reel structure. Background Technology

[0002] After the rubber coating of rotating parts such as pipes and shafts is completed, a layer of nylon waterproof cloth is tightly wrapped around them before vulcanization to ensure adhesion and surface effect during vulcanization. The nylon waterproof cloth is non-stick. The nylon waterproof cloth removed after the rotating parts are vulcanized needs to be reused. Appropriate rollers are needed for the winding, unwinding and rewinding process, and it is also necessary to make it easy to disassemble.

[0003] Currently, the nylon roll reels provided by equipment manufacturers include a roll for mounting nylon fabric rolls and two mounting shafts fixed on both sides of the roll to limit the position of the nylon fabric rolls. Existing nylon roll reels have the following disadvantages:

[0004] 1. The external mounting shaft and the internal winding shaft in the nylon winding reel are fixed together by shaft screws and set screws, which makes the space narrow and replacement time-consuming and laborious.

[0005] Second, under the action of winding torque, the roller and mounting shaft fixed by the set screw are prone to loosening during operation, requiring the operator to repeatedly stop the machine to fix them, which affects the production progress and may even cause the roller to fall off, posing a safety hazard. Utility Model Content

[0006] To address the aforementioned problems, this application provides a reel structure.

[0007] According to one aspect of the embodiments of this application, a winding structure is disclosed, comprising a winding shaft with radially penetrating mounting holes at both axial ends, the portion of the winding shaft between the two mounting holes being used for winding material; two mounting bushings, corresponding to each of the axial ends of the winding shaft; two baffles, corresponding to each of the outer circumferences of the mounting bushings, the two baffles being located between the two mounting holes, the two baffles being used to block and limit the axial ends of the wound material; and two locking members, corresponding to each of the two mounting bushings; the locking members are detachably connected to the mounting bushings, and can pass through the mounting holes to connect the winding shaft and the mounting bushings, or exit from the mounting holes to release the connection between the winding shaft and the mounting bushings.

[0008] In one exemplary embodiment, the mounting bushing is provided with a locking through hole extending radially; the locking member includes a pin and two limiting ends respectively located at both axial ends of the pin, the pin passing through the locking through hole and the mounting through hole, the limiting ends being engaged with the outer wall of the mounting bushing, and at least one of the limiting ends being detachably connected to the pin or swinging relative to the pin to release the engagement of the mounting bushing.

[0009] In one exemplary embodiment, the pin has a notch at one axial end, and a retaining shaft is connected between the two opposite side walls of the notch. A limiting end is inserted into the notch, and the limiting end has an axially extending slot. The retaining shaft is inserted into the slot, and the retaining shaft can rotate relative to the slot and move axially along the slot. Wherein, when the limiting end rotates relative to the pin to be aligned with the axial direction of the pin, the limiting end releases its locking of the mounting sleeve and can disengage from the locking through hole and the mounting through hole along with the pin.

[0010] In one exemplary embodiment, the sidewall of the reel has a through positioning opening located between the two mounting through holes, the positioning opening extending along the axial direction of the reel, and the positioning opening being used to pass material through.

[0011] In one exemplary embodiment, the positioning opening is offset from the two mounting through holes in the circumferential direction of the spool.

[0012] In one exemplary embodiment, the positioning opening has a circumferential width of 1.5mm to 2.5mm along the spool; and / or the positioning opening extends radially through the spool.

[0013] In one exemplary embodiment, the outer diameter of the spool is smaller than the inner diameter of the mounting bushing; the spool has an axially continuous interior.

[0014] In one exemplary embodiment, a first mounting hole and a second mounting hole are sequentially provided inside the mounting bushing along the axial direction away from the other mounting bushing. The first mounting hole is used to fit the spool, and the second mounting hole is used to connect the drive member. A keyway is provided on the side wall of the second mounting hole. The keyway extends along the axial direction away from the spool to one axial end of the mounting bushing. The second mounting hole and the keyway are used for interference connection with the drive shaft of the drive member.

[0015] In one exemplary embodiment, the distance between the baffle and the locking through hole is not less than 20 mm.

[0016] In one exemplary embodiment, both baffles extend radially; the baffles are annular; the inner annular wall of the baffle is welded to the outer peripheral wall of one axial end of the mounting sleeve, and the baffle is flush with the axial end face of the mounting sleeve near the other mounting sleeve.

[0017] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:

[0018] In the reel structure disclosed in this application, radially penetrating mounting holes are provided at both axial ends of the reel. Two mounting sleeves are respectively fitted onto the portions of the reel at the corresponding axial ends with mounting holes. Locking members are detachably connected to the mounting sleeves. By inserting the locking members into the mounting holes, the reel and the mounting sleeves are fixed circumferentially. The mounting sleeves are equipped with baffles. After the two mounting sleeves are connected to the reel, the two baffles are located between the two mounting holes, allowing material to be wound onto the reel. The two baffles can block and limit the axial ends of the material, preventing the material roll from falling off or tilting. When it is necessary to replace the material roll, the locking members are removed from the mounting sleeves, allowing the mounting sleeves and the reel to be removed together for replacement.

[0019] The combination of the spool, mounting sleeve, and locking mechanism facilitates the assembly and disassembly of the spool. The locking mechanism penetrates the spool and locks the spool and mounting sleeve circumferentially, solving the problem of easy loosening between the spool and mounting sleeve.

[0020] Meanwhile, because the locking mechanism on the mounting bushing needs to be connected to the corresponding position of the mounting through hole, the axial distance between the two mounting bushings remains consistent each time they are installed on the reel, eliminating the need to repeatedly position the mounting bushings and the reel, thus further improving installation efficiency.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the specification, serve to explain the principles of this application.

[0023] Figure 1 This is a schematic diagram of the composition of a reel structure provided in an embodiment of this application.

[0024] Figure 2 This is a cross-sectional view of a scroll provided in one embodiment of this application.

[0025] Figure 3 This is a top view of a scroll provided in one embodiment of this application.

[0026] Figure 4 This is a side perspective view of a scroll provided in an embodiment of this application.

[0027] Figure 5 This is a schematic diagram of a mounting bushing provided in an embodiment of this application.

[0028] Figure 6 This is a side view of the mounting bushing provided in an embodiment of this application.

[0029] The reference numerals in the attached drawings are explained as follows: 1-Spindle; 11-Mounting through hole; 12-Positioning opening; 2-Mounting bushing; 21-Locking through hole; 22-First mounting hole; 23-Second mounting hole; 24-Keyway; 31-Drive component; 32-Flat key; 4-Locking component; 41-Pin; 42-Limiting end; 421-Strip groove; 5-Baffle. Detailed Implementation

[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this application will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art.

[0031] In the description of this utility model, all the connection relationships mentioned do not refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0035] Figure 1 A schematic diagram of the reel structure is shown. Figure 2 A cross-sectional view of scroll 1 is shown.

[0036] Reference Figure 1 The reel structure includes a reel 1, two mounting bushings 2, two baffles 5, and two locking components 4.

[0037] The axial ends of the roll 1 are respectively provided with radially penetrating mounting holes 11, and the part of the roll 1 between the two mounting holes 11 is used for winding materials.

[0038] Two mounting bushings 2 are fitted one-to-one onto the axial ends of the reel 1.

[0039] Two baffles 5 are respectively set on the outer periphery of the mounting bushing 2. The two baffles 5 are located between the two mounting through holes 11. The two baffles 5 are used to block and limit the axial ends of the wound material respectively.

[0040] Two locking pieces 4 correspond one-to-one with two mounting bushings 2. The locking pieces 4 are detachably connected to the mounting bushings 2, and can pass through the mounting through holes 11 to connect the scroll 1 and the mounting bushings 2, or exit from the mounting through holes 11 to disconnect the scroll 1 and the mounting bushings 2.

[0041] The cooperation of the reel 1, mounting sleeve 2, and locking member 4 facilitates the assembly and disassembly of the reel 1. The locking member 4 penetrates the reel 1, locking the reel 1 and mounting sleeve 2 circumferentially, thus resolving the issue of easy loosening between them. Furthermore, because the locking member 4 on the mounting sleeve 2 corresponds to the mounting through hole 11, the axial distance between the two mounting sleeves 2 remains consistent after each installation on the reel 1, eliminating the need for repeated positioning of the mounting sleeves 2 and the reel 1, further improving installation efficiency.

[0042] Reference Figure 1 The outer diameter of the spool 1 is smaller than the inner diameter of the mounting sleeve 2. The difference between the outer diameter of the spool 1 and the inner diameter of the mounting sleeve 2 facilitates the mounting sleeve 2 being fitted onto or removed from the spool 1.

[0043] Figure 3 A top view of scroll 1 is shown. Figure 4 A side perspective view of scroll 1 is shown.

[0044] Reference Figures 2 to 4 The scroll 1 has mounting through holes 11 on its side walls near both ends of its axial direction. The mounting through holes 11 extend radially through the scroll 1, that is, the extension direction of the mounting through holes 11 passes through the central axis of the scroll 1.

[0045] The distance between the two mounting through holes 11 needs to be greater than the axial width of the material roll to avoid affecting the winding of the material roll and to avoid affecting the replacement of the roll 1 by obstructing the installation of the locking piece 4 through the mounting through holes 11.

[0046] In this embodiment, the two mounting through holes 11 are located on the same circumferential position of the scroll 1, which facilitates the installation of the lock 4 by the operator. In some other embodiments, the two mounting through holes 11 may also be spaced apart along the circumference of the scroll 1.

[0047] The material used in this application can be nylon tape, and the reel structure of this application can be used to wind nylon tape rolls.

[0048] In actual use, because the nylon tape was soaked in anti-adhesive, it could not be glued to the roll 1 with adhesive tape, and could not provide the winding torque and tension of the nylon tape when winding.

[0049] Furthermore, in order to provide tension to the material roll, the roll 1 of this application is also provided with a positioning opening 12 on its side wall.

[0050] Specifically, a positioning opening 12 is provided through the side wall of the roll 1, located between two mounting through holes 11. The positioning opening 12 extends along the axial direction of the roll 1 and is used to pass material through. Before winding material onto the roll 1, one end of the material is first passed through the positioning opening 12, and a portion of the material protrudes from the side wall of the roll 1. Then, the material is wound onto the roll 1, so that the portion of material protruding from the positioning opening 12 can be pressed tightly by the wound material, thereby completing the fixation of the material on the roll 1, reducing the loosening of the wound material, and providing tension for the subsequent winding and unwinding processes.

[0051] The axial extension length of the positioning opening 12 matches the width of the material along the axial direction of the roll 1. In this embodiment, the positioning opening 12 is located between the two mounting through holes 11. In other embodiments, the axial extension length of the positioning opening 12 may also extend outward beyond the location of the mounting through hole 11, as long as the axial width of the material is less than the length of the positioning opening 12, to avoid the material passing through the positioning opening 12 blocking the position of the mounting through hole 11 and affecting the installation of the lock 4.

[0052] Furthermore, the positioning opening 12 is offset from the two mounting through holes 11 in the circumferential direction of the scroll 1.

[0053] The position of the positioning opening 12 is offset from the position of the two mounting through holes 11 along the circumference of the scroll 1, thereby improving the structural strength of the scroll 1 and reducing deformation of the scroll 1 at the positioning opening 12 and the mounting through holes 11. In this embodiment, the positions of the positioning opening 12 and the mounting through holes 11 are offset by 90° along the circumference of the scroll 1. In another embodiment, the positions of the positioning opening 12 and the mounting through holes 11 may be offset by 0° to 90° along the circumference of the scroll 1.

[0054] Furthermore, the circumferential width of the positioning opening 12 along the roll 1 is 1.5mm to 2.5mm. The width of the positioning opening 12 matches the thickness of the material, reducing the possibility of the material being too loose or difficult to pass through when it enters the positioning opening 12.

[0055] Furthermore, the positioning opening 12 extends radially along the spool 1. The positioning opening 12 extends in a straight line and passes through the central axis of the spool 1, facilitating the insertion of material into the positioning opening 12. In other embodiments, the direction of the positioning opening 12 may be a straight line or a curve; alternatively, the direction of the positioning opening 12 may be offset from the central axis of the spool 1.

[0056] In this embodiment, the inside of the scroll 1 is axially continuous. The scroll 1 has a cylindrical structure with a central through-hole, which facilitates the opening of the through hole 11 and the positioning opening 12, and reduces the weight of the scroll 1. The scroll 1 can be made of steel pipe, and the thickness of the scroll 1 is not less than 3mm to ensure the structural strength of the scroll 1. In another embodiment, the scroll 1 can also be a solid structure.

[0057] There are two mounting sleeves 2, each fitted onto one of the axial ends of the reel 1. Each mounting sleeve 2 is detachably connected to a locking member 4, which can pass through the mounting through hole 11 to connect the reel 1 and the mounting sleeve 2, or exit from the mounting through hole 11 to disengage the reel 1 and the mounting sleeve 2. It should be noted that the mounting sleeve 2 has internal holes for fitting the reel 1; the outer diameter of the reel 1 is smaller than the inner diameter of the holes in the mounting sleeve 2, ensuring that the mounting sleeve 2 can be easily fitted onto the reel 1. Each mounting sleeve 2 is equipped with a baffle 5, which can block and limit the axial movement of the wound material at both ends.

[0058] Furthermore, the mounting sleeve 2 is provided with a locking through hole 21 that extends radially. The locking member 4 includes a pin 41 and two limiting ends 42 located at the two axial ends of the pin 41. The pin 41 passes through the locking through hole 21 and the mounting through hole 11. The limiting ends 42 are engaged with the outer wall of the mounting sleeve 2. At least one limiting end 42 is detachably connected to the pin 41 or can swing relative to the pin 41 to release the engagement of the mounting sleeve 2.

[0059] Specifically, after the mounting sleeve 2 is fitted onto the reel 1, the locking through hole 21 is aligned with the mounting through hole 11. Then, the locking through hole 21 and the mounting through hole 11 are simultaneously inserted through the pin 41, thus fixing the mounting sleeve 2 and the reel 1 circumferentially. Finally, the position of the limiting end 42 relative to the pin 41 is adjusted so that the limiting end 42 can be locked onto the outer wall of the mounting sleeve 2 without falling off the locking through hole 21. When it is necessary to remove the mounting sleeve 2, the limiting end 42 is removed from the pin 41, or the limiting end 42 is swung to release the limiting end 42 from the mounting sleeve 2. Then, the pin 41 can be disengaged from the mounting through hole 11 and the locking through hole 21, making it convenient for workers to install or remove the mounting sleeve 2 from the reel 1.

[0060] Furthermore, the pin 41 has a notch at one axial end, and a retaining shaft is connected between the two side walls opposite to the notch. A limiting end 42 passes through the notch, and the limiting end 42 has a strip groove 421 extending axially. The retaining shaft passes through the strip groove 421, and the retaining shaft can rotate relative to the strip groove 421 and move axially along the strip groove 421.

[0061] Specifically, a limiting end 42 is rotatably connected to the pin 41 through a slot 421 and a retaining shaft. When the pin 41 is inserted into or removed from the mounting through hole 11, the limiting end 42 is rotated relative to the pin 41 to a position aligned with the axial direction of the pin 41, thus releasing the limiting end 42 from the mounting sleeve 2 and allowing it to disengage from the locking through hole 21 and the mounting through hole 11 along with the pin 41. When it is necessary to fix the pin 41 to the reel 1 and the mounting sleeve 2, after the limiting end 42 is inserted beyond the locking through hole 21, it is swung relative to the pin 41, and then the retaining shaft is slid along the slot 421, allowing the limiting end 42 to lock and fix the mounting sleeve 2. In practice, a rubber pad can be provided at the relative swing position of the limiting end 42 and the pin 41 to increase the friction between them during relative rotation and sliding, thereby improving the stability of the limiting end 42 locked on the mounting sleeve 2. Alternatively, the limiting end 42 can be glued to the outer wall of the mounting sleeve 2 after being engaged with the mounting sleeve 2, thereby fixing the position of the limiting end 42. In this embodiment, the limiting end 42 engages or disengages the mounting sleeve 2 by swinging and sliding relative to the pin 41, allowing for manual replacement without the need for tools, which is convenient and quick.

[0062] In this embodiment, another limiting end 42 is fixedly disposed on the pin 41, and the width of the limiting end 42 is greater than the width of the locking through hole 21, so that after the pin 41 passes through the locking through hole 21 and the mounting through hole 11, the limiting end 42 is naturally locked on the outside of the locking through hole 21 and locked on the outer wall of the mounting bushing 2, thereby improving the ease of installation.

[0063] In another embodiment, the limiting end 42 may be fixed to the pin 41 by a detachable connection such as a threaded connection.

[0064] Figure 5 A schematic diagram of a mounting bushing 2 is shown.

[0065] Reference Figure 5Furthermore, the interior of one mounting sleeve 2 is provided with a first mounting hole 22 and a second mounting hole 23 sequentially along the axial direction away from the other mounting sleeve 2. The first mounting hole 22 is used to fit the reel 1, and the second mounting hole 23 is used to connect the drive component 31. Specifically, the interior of the mounting sleeve 2 is axially continuous, and includes a first mounting hole 22 and a second mounting hole 23 connected in sequence. One axial end of the first mounting hole 22 forms an axial opening of the mounting sleeve 2, and the other axial end of the first mounting hole 22 is connected to one axial end of the second mounting hole 23. The other axial end of the second mounting hole 23 forms an axial opening of the mounting sleeve 2. The first mounting hole 22 is used to pass through the reel 1, and the second mounting hole 23 is used to connect with the drive component 31. The drive component 31 can drive the mounting sleeve 2 to rotate, and then, under the connection and fixing action of the locking component 4, drive the reel 1 and the other mounting sleeve 2 to rotate synchronously, realizing automatic winding. The interior of the other mounting sleeve 2 can be partially fitted onto the scroll 1, or it can be completely fitted onto the scroll 1.

[0066] Furthermore, a keyway 24 is provided on the side wall of the second mounting hole 23. The keyway 24 extends axially away from the spool 1 to one axial end of the mounting sleeve 2. The second mounting hole 23 and the keyway 24 are used for interference connection with the drive shaft of the drive member 31.

[0067] The drive shaft of the drive component 31 is provided with a flat key 32. When the drive shaft passes through the second mounting hole 23, the flat key 32 is engaged in the keyway 24. The drive component 31 and the second mounting hole 23 are synchronously connected by a key connection and fixed to each other by an interference fit. The reasonable interference fit ensures convenient installation and stable transmission between the drive shaft and the mounting bushing 2, so that the drive shaft and the mounting bushing 2 are circumferentially fixed and transmit torque, preventing loosening.

[0068] The driving component 31 in this application can be a motor, and the corresponding driving shaft is a motor shaft.

[0069] In this application, baffles 5 are correspondingly disposed on the outer periphery of the mounting sleeve 2. The two baffles 5 are located between the two mounting through holes 11. The two baffles 5 are used to block and limit the axial ends of the wound material respectively. The baffles 5 are located between the two mounting through holes 11 of the roll 1. The material is positioned between the two baffles 5 to avoid affecting the locking piece 4 passing through the mounting through hole 11, which is convenient for the operator.

[0070] Specifically, after the mounting sleeve 2 is installed on the reel 1, the two baffles 5 are spaced apart between the locking through holes 21 of the two mounting sleeves 2.

[0071] Furthermore, the distance between the baffle 5 and the locking through hole 21 is not less than 20mm. This provides operating space for the staff, making it convenient for them to insert the lock 4 into the locking through hole 21.

[0072] Figure 6 A side view of the mounting bushing 2 is shown.

[0073] Reference Figure 5 and Figure 6 Furthermore, both baffles 5 extend radially. They can block the material roll on both sides of the axial direction and further reduce the skewing of the material roll during continuous winding, thus playing a limiting role.

[0074] Specifically, the baffle 5 is annular and is fitted onto the mounting sleeve 2. The shape of the baffle 5 fits the side shape of the material roll and makes the force on the mounting sleeve 2 more even in the circumferential direction.

[0075] In this embodiment, the inner ring wall of the baffle 5 is welded to the outer peripheral wall of one axial end of the mounting sleeve 2, and the baffle 5 is flush with the axial end face of the mounting sleeve 2 near the other mounting sleeve 2. The flush end faces of the baffle 5 and the mounting sleeve 2 reduce the gap between the baffle 5 and the material roll, ensuring that the material roll can be blocked and limited by the baffle 5, further reducing the skewing of the material roll during the continuous winding process and improving the neatness of the material roll winding.

[0076] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

Claims

1. A reel structure, characterized in that, include: A reel has radially penetrating mounting holes at both axial ends, and the portion of the reel between the two mounting holes is used for winding material. Two mounting bushings are fitted one-to-one onto the axial ends of the reel; Two baffles are respectively disposed on the outer periphery of the mounting bushing, and the two baffles are located between the two mounting through holes. The two baffles are used to block and limit the axial ends of the wound material respectively. Two locking components correspond one-to-one with the two mounting bushings; the locking components are detachably connected to the mounting bushings, can pass through the mounting through holes to connect the spool and the mounting bushings, or can exit from the mounting through holes to disconnect the spool and the mounting bushings.

2. The reel structure according to claim 1, characterized in that, The mounting bushing is provided with a locking through hole that extends radially. The locking component includes a pin and two limiting ends located at the axial ends of the pin. The pin passes through the locking through hole and the mounting through hole. The limiting ends are engaged with the outer wall of the mounting sleeve. At least one of the limiting ends is detachably connected to the pin or can swing relative to the pin to release the engagement of the mounting sleeve.

3. The reel structure according to claim 2, characterized in that, The pin has a notch at one axial end, and a retaining shaft is connected between the two opposite side walls of the notch. A limiting end is inserted into the notch, and the limiting end has a strip groove extending axially. The retaining shaft is inserted into the strip groove, and the retaining shaft can rotate relative to the strip groove and move axially along the strip groove. Wherein: when the limiting end rotates relative to the pin to be in the same axial direction as the pin, the limiting end releases its locking of the mounting bushing and can disengage from the locking through hole and the mounting through hole along with the pin.

4. The reel structure according to claim 1, characterized in that, The side wall of the reel has a through positioning opening, which is located between the two mounting holes and extends along the axial direction of the reel. The positioning opening is used to pass materials through.

5. The reel structure according to claim 4, characterized in that, The positioning openings are respectively offset from the two mounting through holes in the circumferential direction of the reel.

6. The reel structure according to claim 4, characterized in that, The positioning opening has a circumferential width of 1.5mm to 2.5mm along the spool; and / or The positioning opening extends radially through the spool.

7. The reel structure according to claim 1, characterized in that, The outer diameter of the reel is smaller than the inner diameter of the mounting sleeve; The inside of the scroll is axially continuous.

8. The reel structure according to claim 1, characterized in that, The mounting bushing has a first mounting hole and a second mounting hole arranged sequentially along the axial direction away from the other mounting bushing. The first mounting hole is used to fit the scroll, and the second mounting hole is used to connect the drive component. The second mounting hole has a keyway on its sidewall. The keyway extends axially away from the spool to one axial end of the mounting bushing. The second mounting hole and the keyway are used for interference fit with the drive shaft of the drive component.

9. The reel structure according to claim 2, characterized in that, The distance between the baffle and the locking through hole is not less than 20mm.

10. The reel structure according to claim 1, characterized in that, Both baffles extend radially; The baffle is annular; the inner ring wall of the baffle is welded to the outer peripheral wall of one axial end of the mounting bushing, and the baffle is flush with the axial end face of the mounting bushing close to the other mounting bushing.

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