Rapid core-pulling device after winding of frameless coil

Abstract

The utility model relates to a quick core-pulling device after winding of a frameless coil, which belongs to the technical field of coil windings and comprises a first rotating shaft, a second rotating shaft is placed on the bottom surface of the first rotating shaft, and a clamping hole is formed in the top surface of the second rotating shaft. The top surface of the first rotating shaft is fixedly connected with a connecting rod, one end of the connecting rod penetrates through the first rotating shaft and extends into the clamping hole, the peripheral walls of the first rotating shaft and the second rotating shaft are fixedly sleeved with winding discs, and a positioning hole is formed in the second rotating shaft. According to the rapid core-pulling device after winding of the frameless coil, under the action of the first rotating shaft and the second rotating shaft, the winding shaft is divided into two sections, after the coil is wound, a worker can conveniently pull out the rotating shafts, through clearance fit between a positioning rod and a positioning hole, the first rotating shaft and the second rotating shaft are conveniently connected, and meanwhile the core-pulling efficiency is improved. And through cooperation of a fixing rod, a fixing hole, a receding hole and a connecting hole, the first rotating shaft and the second rotating shaft are fixed, and the stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of coil winding technology, specifically a rapid core-pulling device for frameless coils after winding. Background Technology

[0002] A transformer coil is a type of coil. A transformer needs coils to operate. Coils are generally divided into two types: layered and disc-shaped. A coil in which the turns of wire are arranged in layers along the axial direction and wound continuously is called a layered coil. Each layer is cylindrical. This is because the coil has good mechanical strength, is not easily deformed, and is easy to wind. A coil composed of two layers is called a double-layered cylindrical coil, and a coil composed of multiple layers is called a multi-layered cylindrical coil.

[0003] Existing coils are generally wound using a cylindrical winding shaft. When the coil is tightly wound, the coil and the winding shaft are in close contact, making it difficult to remove the winding shaft from the inside of the coil, which reduces the effectiveness of use. Therefore, a frameless coil winding quick core removal device is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick core-pulling device after winding a frameless coil, which has the advantage of convenient disassembly. It solves the problem that when winding existing coils, a cylindrical winding shaft is generally used. After the coil is tightly wound, the coil and the winding shaft are in close contact, making it difficult to remove the winding shaft from the inside of the coil, thus reducing the effectiveness of use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a frameless coil winding quick core-pulling device, including a first rotating shaft, a second rotating shaft placed on the bottom surface of the first rotating shaft, a locking hole opened on the top surface of the second rotating shaft, a connecting rod fixedly connected to the top surface of the first rotating shaft with one end penetrating through the first rotating shaft and extending into the locking hole, and a winding disc fixedly fitted on the outer peripheral walls of both the first rotating shaft and the second rotating shaft.

[0006] The second rotating shaft has a positioning hole inside, and the connecting rod extends into the positioning hole. The right side of the second rotating shaft has a connecting hole, and the inside of the second rotating shaft has a fixing hole. The left side of the positioning rod has a clearance hole. A fixing rod with one end passing through the connecting hole and the clearance hole and extending into the fixing hole is placed inside the connecting hole.

[0007] The second rotating shaft is equipped with a fixing component for fixing the fixing rod.

[0008] The second rotating shaft is equipped with a drive component for driving the fixed component.

[0009] Furthermore, the connecting rod and the locking hole are fitted with a clearance fit, the positioning rod and the positioning hole are fitted with a clearance fit, and the contact surfaces of the first rotating shaft and the second rotating shaft are inclined surfaces.

[0010] Furthermore, the connecting hole, the clearance hole, and the fixing hole are all clearance-fitted with the fixing rod, and the fixing hole and the connecting hole are located on the left and right sides of the clearance hole, respectively.

[0011] Furthermore, the fixing assembly includes two limiting rods, which are respectively placed inside the fixing hole and the connecting hole. The bottom surface of each fixing rod has two limiting holes, and the two limiting rods extend into the two limiting holes. The second rotating shaft has two placement slots, and the two limiting rods extend into the two placement slots. The second rotating shaft also has an installation slot. Each installation slot is rotatably connected by a bearing to two drive rods, each with one end penetrating the installation slot and extending into the two placement slots. Each placement slot has a retaining plate fixedly connected to it, and the two drive rods pass through the two retaining plates. The bottom surface of each limiting rod is fixedly connected to a moving plate, and the bottom surface of each moving plate is fixedly connected to a screw with one end extending into the drive rod. The top surface of each retaining plate has two support holes, and the bottom surface of each moving plate is fixedly connected to two support rods, each with one end penetrating the support hole.

[0012] Furthermore, the two limiting rods are respectively fitted with the two limiting holes with clearance, and the two driving rods are respectively rotatably connected to the two clamping plates through bearings.

[0013] Furthermore, the top surface of the drive rod is provided with a threaded hole, the screw extends into the interior of the threaded hole and is threadedly connected thereto, and the support rod and the support hole are clearance-fitted.

[0014] Furthermore, the drive assembly includes a rotating rod, one end of which is rotatably connected to the right side of the second rotating shaft via a bearing, and the other end of which passes through the second rotating shaft and extends into the interior of the mounting groove. Two driving bevel gears are fixedly installed on the outer peripheral wall of the rotating rod, and driven bevel gears that mesh with the two driving bevel gears are fixedly installed on the outer peripheral walls of the two drive rods respectively. A slot is formed on the outer peripheral wall of the rotating rod, and a locking rod with one end extending into the slot is fixedly connected to the right side of the second rotating shaft.

[0015] Furthermore, the rotating rod is rotatably connected to the mounting groove via a bearing, both of the driving bevel gears are located inside the mounting groove, the slot is an annular groove, the locking rod is an L-shaped elastic rod, and the locking rod and the slot are in contact.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. This frameless coil winding quick core-pulling device, through the action of the first and second rotating shafts, divides the winding shaft into two sections. After the coil is wound, it is convenient for the operator to pull out the rotating shaft. The first and second rotating shafts are conveniently connected through the gap fit between the positioning rod and the positioning hole. At the same time, the first and second rotating shafts are fixed through the fit between the fixing rod, the fixing hole, the clearance hole and the connecting hole, thereby improving stability.

[0018] 2. This frameless coil winding quick core pulling device uses the clearance fit between the limiting rod and the limiting hole to fix the fixing rod, improving the stability of the fixing rod. The threaded connection between the drive rod and the screw drives the limiting rod to move, making it convenient for operators to operate. At the same time, the meshing between the active bevel gear and the driven bevel gear conveniently drives the drive rod to rotate, making it more convenient and practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an enlarged schematic diagram of the internal structure of the second rotating shaft in this utility model.

[0021] Figure 3 for Figure 2 Enlarged structural diagram of A in the middle;

[0022] Figure 4 for Figure 3 Enlarged structural diagram of B in the middle;

[0023] Figure 5 for Figure 3 Enlarged schematic diagram of the structure of C;

[0024] Figure 6 This is a top view of the movable plate in the structure of this utility model.

[0025] In the diagram: 1 First rotating shaft, 2 Winding disc, 3 Second rotating shaft, 4 Connecting rod, 5 Locking hole, 6 Positioning rod, 7 Positioning hole, 8 Clearance hole, 9 Fixing hole, 10 Limiting hole, 11 Limiting rod, 12 Moving plate, 13 Drive rod, 14 Driven bevel gear, 15 Mounting slot, 16 Driven bevel gear, 17 Placement slot, 18 Rotating rod, 19 Screw, 20 Fixing rod, 21 Connecting hole, 22 Supporting hole, 23 Supporting rod, 24 Locking plate, 25 Locking slot, 26 Locking rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please refer to Figures 1 to 6 The frameless coil winding and quick core-pulling device in this embodiment includes a first rotating shaft 1, a second rotating shaft 3 placed on the bottom surface of the first rotating shaft 1, a locking hole 5 opened on the top surface of the second rotating shaft 3, a connecting rod 4 with one end passing through the first rotating shaft 1 and extending into the locking hole 5 fixedly connected to the top surface of the first rotating shaft 1, and a winding disc 2 fixedly fitted on the outer peripheral walls of the first rotating shaft 1 and the second rotating shaft 3.

[0028] The second rotating shaft 3 has a positioning hole 7 inside, and the connecting rod 4 extends into the positioning hole 7 to form a positioning rod 6. The right side of the second rotating shaft 3 has a connecting hole 21, and the inside of the second rotating shaft 3 has a fixing hole 9. The left side of the positioning rod 6 has a clearance hole 8. A fixing rod 20 is placed inside the connecting hole 21, with one end passing through the connecting hole 21 and the clearance hole 8 and extending into the fixing hole 9.

[0029] Among them, the connecting rod 4 and the locking hole 5 are in clearance fit, the positioning rod 6 and the positioning hole 7 are in clearance fit, the contact surfaces of the first rotating shaft 1 and the second rotating shaft 3 are inclined surfaces, the connecting hole 21, the clearance hole 8 and the fixing hole 9 are all in clearance fit with the fixing rod 20, and the fixing hole 9 and the connecting hole 21 are located on the left and right sides of the clearance hole 8 respectively.

[0030] Specifically, the first rotating shaft 1 is pushed, and the first rotating shaft 1 and the second rotating shaft 3 are brought into contact. The connecting rod 4 is inserted into the inside of the locking hole 5, and the positioning rod 6 is inserted into the positioning hole 7. Through the gap fit between the connecting rod 4 and the locking hole 5, and the gap fit between the positioning rod 6 and the positioning hole 7, the first rotating shaft 1 is restricted to the second rotating shaft 3. The clearance hole 8, the fixing hole 9, and the connecting hole 21 are located on the same center line. The fixing rod 20 is pushed, and the fixing rod 20 passes through the connecting hole 21 and the clearance hole 8 in sequence, and then enters the inside of the fixing hole 9. Through the gap fit between the fixing rod 20 and the fixing hole 9, the first rotating shaft 1 is fixed. Then, under the action of the first rotating shaft 1, the second rotating shaft 3, and the winding disk 2, the coil is wound. After the coil is wound, the fixing rod 20 is removed from the fixing hole 9 and located outside the second rotating shaft 3. The first rotating shaft 1 and the second rotating shaft 3 are pulled to remove them from the coil.

[0031] Example 2: Please refer to Figures 1 to 6In this embodiment, based on Embodiment 1, a fixing assembly is provided on the second rotating shaft 3. The fixing assembly includes two limiting rods 11, which are respectively placed inside the fixing hole 9 and the connecting hole 21. Two limiting holes 10 are opened on the bottom surface of the fixing rod 20, and the two limiting rods 11 extend into the two limiting holes 10 respectively. Two placement grooves 17 are opened inside the second rotating shaft 3, and the two limiting rods 11 extend into the two placement grooves 17 respectively. An installation groove 15 is opened inside the second rotating shaft 3, and the interior of the installation groove 15 is connected by bearings. Two drive rods 13 are rotatably connected, each with one end penetrating the mounting groove 15 and extending into the two placement grooves 17 respectively. Each of the two placement grooves 17 has a locking plate 24 fixedly connected inside. The two drive rods 13 pass through the two locking plates 24 respectively. Each of the two limit rods 11 has a movable plate 12 fixedly connected to its bottom surface. Each of the two movable plates 12 has a screw 19 fixedly connected to its bottom surface, with one end extending into the drive rod 13. Each of the two locking plates 24 has two support holes 22 on its top surface. Each of the two movable plates 12 has two support rods 23 fixedly connected to its bottom surface, each with one end penetrating the support hole 22.

[0032] Among them, the two limiting rods 11 are respectively clearance-fitted with the two limiting holes 10, the two driving rods 13 are respectively rotatably connected to the two clamping plates 24 through bearings, the top surface of the driving rod 13 is provided with a threaded hole, the screw 19 extends into the interior of the threaded hole and is threadedly connected to it, and the support rod 23 and the support hole 22 are clearance-fitted.

[0033] Specifically, the limiting rod 11 and the limiting hole 10 are located on the same center line. The driving rod 13 rotates, and through the threaded connection between the driving rod 13 and the screw 19 and the clearance fit between the support rod 23 and the support hole 22, the screw 19 moves upward. The screw 19 drives the moving plate 12 to move upward, so that the limiting rod 11 is inserted into the interior of the limiting hole 10. Through the clearance fit between the limiting rod 11 and the limiting hole 10, the fixing rod 20 is fixed.

[0034] Example 3: Please refer to Figures 1 to 6 In this embodiment, based on Embodiment 1 and Embodiment 2, a drive assembly is provided on the second rotating shaft 3. The drive assembly includes a rotating rod 18. One end of the rotating rod 18 is rotatably connected to the right side of the second rotating shaft 3 via a bearing, and the other end passes through the second rotating shaft 3 and extends into the interior of the mounting groove 15. Two driving bevel gears 16 are fixedly installed on the outer peripheral wall of the rotating rod 18. Driven bevel gears 14 that mesh with the two driving bevel gears 16 are fixedly installed on the outer peripheral walls of the two drive rods 13 respectively. A slot 25 is opened on the outer peripheral wall of the rotating rod 18. A locking rod 26 with one end extending into the slot 25 is fixedly connected to the right side of the second rotating shaft 3.

[0035] The rotating rod 18 is rotatably connected to the mounting groove 15 via a bearing. Both active bevel gears 16 are located inside the mounting groove 15. The slot 25 is an annular groove, and the locking rod 26 is an L-shaped elastic rod. The locking rod 26 and the slot 25 are in contact.

[0036] Specifically, pull the lever 26 to disengage it from the slot 25, rotate the rotating rod 18, and the rotating rod 18 will drive the driving bevel gear 16 to rotate. Through the meshing between the driving bevel gear 16 and the driven bevel gear 14, the driving rod 13 will be driven to rotate. After the fixing rod 20 is fixed, push the lever 26 to reset it. The lever 26 will be inserted into the slot 25. Through the contact between the lever 26 and the slot 25, the rotating rod 18 will be fixed.

[0037] The working principle of the above embodiments is as follows:

[0038] Pushing the first rotating shaft 1, the first rotating shaft 1 and the second rotating shaft 3 come into contact. The connecting rod 4 is inserted into the inside of the locking hole 5, and the positioning rod 6 is inserted into the positioning hole 7. Through the clearance fit between the connecting rod 4 and the locking hole 5, and the clearance fit between the positioning rod 6 and the positioning hole 7, the first rotating shaft 1 is restricted to the second rotating shaft 3. The clearance hole 8, the fixing hole 9, and the connecting hole 21 are located on the same center line. Pushing the fixing rod 20, the fixing rod 20 passes through the connecting hole 21 and the clearance hole 8 in sequence, and then enters the inside of the fixing hole 9. Through the clearance fit between the fixing rod 20 and the fixing hole 9, the first rotating shaft 1 is fixed. At this time, the limiting rod 11 and the limiting hole 10 are located on the same center line. Pulling the locking rod 26, the locking rod 26 is disengaged from the locking groove 25. Rotating the rotating rod 18, the rotating rod 18 drives the driving bevel gear 16 to rotate. Through the driving bevel gear 16 and the driven bevel gear The meshing between 14 drives the drive rod 13 to rotate. Through the threaded connection between the drive rod 13 and the screw 19 and the clearance fit between the support rod 23 and the support hole 22, the screw 19 moves upward. The screw 19 drives the moving plate 12 to move upward, so that the limiting rod 11 is inserted into the limiting hole 10. Through the clearance fit between the limiting rod 11 and the limiting hole 10, the fixing rod 20 is fixed, pushing the locking rod 26 to reset. The locking rod 26 is inserted into the locking groove 25. Through the contact between the locking rod 26 and the locking groove 25, the rotating rod 18 is fixed. Then, under the action of the first rotating shaft 1, the second rotating shaft 3 and the winding disk 2, the coil is wound. After the coil is wound, the limiting rod 11 is disengaged from the limiting hole 10, and the fixing rod 20 is located outside the second rotating shaft 3. Pulling the first rotating shaft 1 and the second rotating shaft 3, it is disengaged from the coil.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid core-pulling device after winding of a skeleton-free coil, comprising a first rotating shaft (1), characterized in that: The bottom surface of the first rotating shaft (1) is provided with a second rotating shaft (3), the top surface of the second rotating shaft (3) is provided with a clamping hole (5), and the top surface of the first rotating shaft (1) is fixedly connected with a connecting rod (4) penetrating through the first rotating shaft (1) and extending into the clamping hole (5); the outer circumferential wall of the first rotating shaft (1) and the second rotating shaft (3) is fixedly sleeved with a winding disc (2). The inside of the second rotating shaft (3) is provided with a positioning hole (7), the connecting rod (4) extends into the positioning hole (6) in the inside of the positioning hole (7), the right side surface of the second rotating shaft (3) is provided with a connecting hole (21), the inside of the second rotating shaft (3) is provided with a fixed hole (9), the left side surface of the positioning rod (6) is provided with a let-hole (8), and the inside of the connecting hole (21) is provided with a fixed rod (20) penetrating through the connecting hole (21) and the let-hole (8) and extending into the inside of the fixed hole (9) in sequence. The second rotating shaft (3) is provided with a fixing assembly for fixing the fixed rod (20), and the second rotating shaft (3) is provided with a driving assembly for driving the fixing assembly.

2. The quick core pulling device for skeletonless coil wire winding according to claim 1, characterized in that: The connecting rod (4) and the clamping hole (5) are in clearance fit, the positioning rod (6) and the positioning hole (7) are in clearance fit, and the abutting surfaces of the first rotating shaft (1) and the second rotating shaft (3) are inclined surfaces.

3. The quick core pulling device for skeletonless coil wire winding according to claim 2, characterized in that: The connecting hole (21), the let-hole (8) and the fixed hole (9) are in clearance fit with the fixed rod (20), and the fixed hole (9) and the connecting hole (21) are respectively located on the left and right sides of the let-hole (8).

4. The quick core pulling device for skeletonless coil wire winding according to claim 1, characterized in that: The fixing assembly comprises two limiting rods (11), the two limiting rods (11) are respectively arranged in the inside of the fixed hole (9) and the connecting hole (21), the bottom surface of the fixed rod (20) is provided with two limiting holes (10), the two limiting rods (11) extend into the two limiting holes (10) respectively, the inside of the second rotating shaft (3) is provided with two placing grooves (17), the two limiting rods (11) extend into the two placing grooves (17) respectively, the inside of the second rotating shaft (3) is provided with a mounting groove (15), the inside of the mounting groove (15) is rotatably connected with two driving rods (13) through bearings, one end of the two driving rods (13) penetrates through the mounting groove (15) and extends into the two placing grooves (17) respectively, the two placing grooves (17) are fixedly connected with two clamping plates (24) respectively, the two driving rods (13) penetrate through the two clamping plates (24) respectively, the bottom surface of the two limiting rods (11) is fixedly connected with two moving plates (12), the bottom surface of the two moving plates (12) is fixedly connected with a screw rod (19) extending into the driving rod (13), the top surface of the two clamping plates (24) is provided with two supporting holes (22), and the bottom surface of the two moving plates (12) is fixedly connected with two supporting rods (23) penetrating through the supporting holes (22) respectively.

5. The quick core pulling device for skeletonless coil wire winding according to claim 4, characterized in that: Two position limiting rods (11) are respectively matched with two position limiting holes (10), and two drive rods (13) are respectively rotatably connected with two clamping plates (24) through bearings.

6. The quick core pulling device for skeletonless coil wire winding according to claim 5, characterized in that: A threaded hole is formed in the top surface of the drive rod (13), the screw rod (19) extends into the threaded hole and is screwed with the threaded hole, and the support rod (23) is matched with the support hole (22) in a clearance fit.

7. The quick core pulling device for skeletonless coil wire winding according to claim 4, characterized in that: The drive assembly comprises a rotating rod (18), one end of the rotating rod (18) is rotatably connected to the right side surface of the second rotating shaft (3) through a bearing, the other end of the rotating rod (18) penetrates through the second rotating shaft (3) and extends into the installation groove (15), the outer peripheral wall of the rotating rod (18) is fixedly installed with two driving bevel gears (16), the outer peripheral walls of the two drive rods (13) are each fixedly installed with a driven bevel gear (14) which is engaged with the two driving bevel gears (16) respectively, the outer peripheral wall of the rotating rod (18) is provided with a clamping groove (25), and the right side surface of the second rotating shaft (3) is fixedly connected with a clamping rod (26) which has one end extending into the clamping groove (25).

8. The quick core pulling device for skeletonless coil wire winding according to claim 7, characterized in that: The rotating rod (18) is rotatably connected through the bearing and the installation groove (15), the two driving bevel gears (16) are located in the installation groove (15), the clamping groove (25) is an annular groove, the clamping rod (26) is an L-shaped elastic rod, and the clamping rod (26) is attached to the clamping groove (25).

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