Rubber wheel for winding machine of annular transformer

Abstract

A rubber wheel for an annular transformer winding machine comprises a middle cylinder, end discs are arranged at the upper end and the lower end of the middle cylinder respectively, an annular groove is formed in the circumferential side of the middle cylinder, a rubber ring is arranged in the annular groove, and the annular groove plays a role in limiting the position of the rubber ring. A plurality of vertical grooves are formed in the circumferential side of the middle cylinder, inner grooves with the number equal to that of the vertical grooves are formed in the inner circumference of the rubber ring, inserting blocks with the number equal to that of the vertical grooves are welded to the inner side of the end disc, and the inserting blocks are arranged in the vertical grooves and the inner grooves in a penetrating mode. The connecting effect between the rubber ring and the middle cylinder is improved, and the problem that the rubber ring slips is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to annular transformer processing technical field especially relates to a rubber wheel for annular transformer winding machine. BACKGROUND

[0002] The annular transformer is often assisted by the winding machine when winding the coil, the device limits the annular core through the three rubber wheels arranged on it, and the annular core rotates through the rotation of one of the rubber wheels, the winding ring on the annular core rotates in the process, and the coil is wound on the annular core in the process. In order to make the annular core rotate synchronously, the rubber wheel with rubber outside is often used to realize the synchronous rotation of the annular core, the rubber presents a ring structure, and the rubber ring is fixed on the rubber wheel by being tightly stretched, the setting of the rubber can improve the friction between the rubber wheel and the annular core, so as to ensure the stability and synchronism of the annular core rotation. However, due to the aging and hardening of the rubber ring in long-term service, the friction force that can be improved after aging or hardening is reduced, so the rubber ring often slips on the rubber wheel, and the problem of the annular core not rotating synchronously often occurs, so how to improve the friction of the rubber ring and facilitate the replacement of the rubber ring becomes a problem to be solved. SUMMARY

[0003] The utility model provides a rubber wheel for annular transformer winding machine to solve the above prior art's insufficient, the rubber ring is inconvenient to replace, and the problem of the rubber ring slipping is avoided by the mode of mechanical connection, and it has strong practicability.

[0004] In order to realize the utility model's purpose, the following technology is adopted:

[0005] A rubber wheel for annular transformer winding machine, including middle cylinder, the upper and lower ends of middle cylinder are respectively equipped with end disc, the circumference of middle cylinder is equipped with ring groove, and the ring groove is equipped with rubber ring, and the ring groove limits the position of rubber ring. The circumference of middle cylinder is equipped with a plurality of vertical grooves, the inner circumference of rubber ring is equipped with the inner groove equal in number with the vertical groove, and the inner side of end disc is welded with the plug equal in number with the vertical groove, the plug is arranged in the vertical groove and the inner groove, through the setting of vertical groove, inner groove and plug, the rubber ring can be positioned, so as to improve the connection effect between rubber ring and middle cylinder, so as to avoid the problem of rubber ring slipping.

[0006] The middle hole is formed through the middle cylinder, a middle shaft is arranged in the middle hole, an upper screw rod is arranged at the upper end of the middle shaft, a connecting shaft is arranged at the lower end of the middle shaft, and nuts are threadedly connected to the upper screw rod and the upper end of the connecting shaft respectively.

[0007] Further, in order to improve the friction between the rubber ring and the annular core, a plurality of protrusions are arranged on the outer periphery of the rubber ring.

[0008] Further, in order to improve the friction, the protrusions are arranged in a spiral structure.

[0009] Further, in order to position the end disc, a plurality of limiting grooves are formed on the inner periphery of the middle hole at the upper and lower ends, an inner extending column is formed on the inner wall of the end disc, the inner extending column is arranged in the middle hole, and a plurality of clamping strips are arranged on the outer periphery of the inner extending column and inserted into the limiting grooves.

[0010] Further, in order to improve the fixing effect of the end disc, an inner hole is formed at the inner end of the inner extending column, an outer hole is communicated with the inner hole, the diameter of the inner hole is smaller than that of the outer hole, the connecting shaft or the upper screw rod is arranged in the inner hole, and the nut is arranged in the outer hole.

[0011] Further, in order to improve the fixing effect of the end disc, a plurality of through holes are formed in the middle cylinder and the end disc, a fixing screw rod is arranged in the through hole, and fixing nuts are threadedly connected to the two ends of the fixing screw rod respectively, and the inner end of the fixing nut acts on the outer wall of the end disc.

[0012] Further, in order to facilitate the sleeving operation of the rubber ring, a tapered surface is formed on the outer periphery of one end of the middle cylinder.

[0013] The above technical scheme has the following advantages:

[0014] The utility model discloses a rubber ring and middle cylinder between the connection effect can be improved, and can avoid the problem of rubber ring slip. ACCURATE DRAWINGS

[0015] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model will be described in further detail below.

[0016] Figure 1 A perspective view of one embodiment is shown.

[0017] Figure 2 A cross-sectional view of one embodiment is shown.

[0018] Figure 3 A three-dimensional structural diagram of the central cylinder is shown.

[0019] Figure 4 A three-dimensional structural diagram of the end plate is shown.

[0020] Figure 5 A three-dimensional structural diagram of the central axis is shown. Detailed Implementation

[0021] like Figures 1-5 As shown, a rubber wheel for a toroidal transformer winding machine includes a central cylinder 1, which is an injection-molded part. This method reduces costs, facilitates molding and processing, and reduces the overall weight of the rubber wheel. One end of the central cylinder 1 has a tapered surface formed on its outer circumference. The upper and lower ends of the central cylinder 1 are respectively provided with end plates 3. An annular groove 14 is formed on the circumference of the central cylinder 1, and a rubber ring 2 is provided in the annular groove 14. The outer circumference of the rubber ring 2 is provided with multiple protrusions 20, which have a spiral structure.

[0022] The circumference of the central cylinder 1 is provided with multiple vertical grooves 16, the inner circumference of the rubber ring 2 is provided with an inner groove equal in number to the vertical grooves 16, and the inner side of the end plate 3 is welded with an insert block 31 equal in number to the vertical grooves 16. The insert block 31 passes through the vertical grooves 16 and the inner groove.

[0023] A central cylinder 1 has a central hole 12 extending through it from top to bottom. A central shaft 4 passes through the central hole 12. The upper end of the central shaft 4 is provided with an upper screw 40, and the lower end of the central shaft 4 is provided with a connecting shaft 41. The upper ends of the upper screw 40 and the connecting shaft 41 are respectively connected to nuts 42 by threads. The lower end of the nut 42 located at the upper end acts on the end plate 3 located at the upper end, and the upper end of the nut 42 located at the lower end acts on the end plate 3 located at the lower end.

[0024] Multiple limiting grooves 13 are respectively opened at the upper and lower ends of the inner circumference of the central hole 12. The inner wall of the end plate 3 is formed with an inner extension post 32, which passes through the central hole 12. The outer circumference of the inner extension post 32 is provided with a number of retaining strips 33 equal to the number of limiting grooves 13, and the retaining strips 33 are inserted into the limiting grooves 13. An inner hole 34 is opened at the inner end of the inner extension post 32, and an outer hole 35 is connected to the inner hole 34. The diameter of the inner hole 34 is smaller than the diameter of the outer hole 35, and the connecting shaft 41 or the upper screw 40 passes through the inner hole 34. The nut 42 is located in the outer hole 35.

[0025] In addition, multiple through holes 10 can be provided on the central cylinder 1 and the end plate 3. A fixing screw 5 is inserted into the through hole 10. The two ends of the fixing screw 5 are respectively connected to fixing nuts 50 by threads. The inner end of the fixing nut 50 acts on the outer wall of the end plate 3.

[0026] In this embodiment, when installing and fixing the rubber ring 2, the nut 42 is first unscrewed from the connecting shaft 41 and the upper screw 40. Then, the end plate 3 is removed from the central cylinder 1. The operator then places the rubber ring 2 onto the central cylinder 1 from the end with the conical surface until the rubber ring 2 is located at the annular groove 14. During the installation process, the operator needs to ensure that the inner groove and the vertical groove 16 correspond. Then, the operator fixes the two end plates 3 to the central cylinder 1 using the nuts 42. Alternatively, the end plates 3 can be fixed using the fixing nut 50 and the fixing screw 5. During fixing, the insert block 31 is inserted into the vertical groove 16 and the inner groove to fix the rubber ring 2. This method significantly improves the connection between the rubber ring 2 and the central cylinder 1. Furthermore, the insert block 31 also acts as a pressure-resistant skeleton, thereby increasing the strength of the central cylinder 1. The limiting groove 13 and the retaining strip 33 further enhance the connection between the end plate 3 and the central cylinder 1.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rubber wheel for a toroidal transformer winding machine, characterized in that, It includes a central cylinder (1), with end plates (3) at the upper and lower ends of the central cylinder (1), and an annular groove (14) on the circumference of the central cylinder (1), with a rubber ring (2) inside the annular groove (14). The circumference of the central cylinder (1) is provided with multiple vertical grooves (16), and the inner circumference of the rubber ring (2) is provided with an inner groove of the same number as the vertical grooves (16); The inner side of the end plate (3) is welded with the same number of inserts (31) as the vertical groove (16), and the inserts (31) pass through the vertical groove (16) and the inner groove; A central cylinder (1) has a central hole (12) extending through it from top to bottom. A central shaft (4) is inserted through the central hole (12). An upper screw (40) is provided at the upper end of the central shaft (4), and a connecting shaft (41) is provided at the lower end of the central shaft (4). Nuts (42) are threadedly connected to the upper ends of the upper screw (40) and the connecting shaft (41). The lower end of the nut (42) at the upper end acts on the end plate (3) at the upper end, and the upper end of the nut (42) at the lower end acts on the end plate (3) at the lower end.

2. The rubber wheel for a toroidal transformer winding machine according to claim 1, characterized in that, The outer periphery of the rubber ring (2) is provided with multiple protrusions (20).

3. The rubber wheel for a toroidal transformer winding machine according to claim 2, characterized in that, The convex strip (20) has a spiral structure.

4. The rubber wheel for a toroidal transformer winding machine according to claim 1, characterized in that, Multiple limiting grooves (13) are respectively opened at the upper and lower ends of the inner circumference of the central hole (12). The inner wall of the end plate (3) is formed with an inner extension column (32). The inner extension column (32) passes through the central hole (12), and the outer circumference of the inner extension column (32) is provided with a number of locking strips (33) equal to the number of limiting grooves (13). The locking strips (33) are inserted into the limiting grooves (13).

5. The rubber wheel for a toroidal transformer winding machine according to claim 4, characterized in that, The inner end of the inner extension column (32) is provided with an inner hole (34), and an outer hole (35) is connected to the inner hole (34). The diameter of the inner hole (34) is smaller than the diameter of the outer hole (35), and the connecting shaft (41) or the upper screw (40) passes through the inner hole (34), and the nut (42) is located in the outer hole (35).

6. The rubber wheel for a toroidal transformer winding machine according to claim 1, characterized in that, Multiple through holes (10) are provided on the central cylinder (1) and the end plate (3). A fixing screw (5) is inserted in the through hole (10). The two ends of the fixing screw (5) are respectively connected to fixing nuts (50) by threads. The inner end of the fixing nut (50) acts on the outer wall of the end plate (3).

7. The rubber wheel for a toroidal transformer winding machine according to claim 1, characterized in that, One end of the central cylinder (1) has a conical surface formed on its outer periphery.

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