Low-tension universal magnetic slip shaft

Abstract

The invention relates to the field of slip shafts. A low-tension universal magnetic slip shaft comprises a shaft core and further comprises a conductor ring, N gaskets and N + 1 slip rings. The conductor ring and the shaft core can simultaneously rotate in the same direction at the same angular speed; the slip ring comprises a magnetic ring and a magnetic ring mounting seat; the magnet ring is arranged on the inner layer of the magnet ring mounting seat close to the conductor ring; the slip ring and the conductor ring can generate electromagnetic torque and rotate freely; and the gaskets sleeve the outer layers of the conductor rings and are arranged between every two adjacent slip rings. The device has the advantages of being simple in structure, low in cost, high in universality and high in production efficiency.

Description

Technical Field

[0001] This invention relates to the field of differential shafts, and more particularly to a low-tension universal magnetic differential shaft. Background Technology

[0002] Existing dual-air-path low-tension differential shafts are limited by their structure and cannot simultaneously wind materials of multiple widths. They have limited specifications, require different differential rings to be paired with corresponding air-expanding shaft cores, have complex structures, high costs, poor versatility, and low production efficiency.

[0003] Therefore, it is necessary to provide a low-tension universal magnetic slip shaft to solve the above-mentioned technical problems. Summary of the Invention

[0004] To overcome the problems of existing dual-air-path low-tension differential shafts, which are limited by their structure, cannot simultaneously wind materials of multiple widths, have limited specifications, require different differential rings to be paired with corresponding air-expanding mandrels, have complex structures, high costs, poor versatility, and low production efficiency, this invention provides a low-tension universal magnetic differential shaft.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A low-tension universal magnetic differential shaft includes a shaft core, a conductor ring, N gaskets, and N+1 differential rings. The conductor ring is sleeved on the outer layer of the shaft core, and both can rotate simultaneously in the same direction at a constant angular velocity. Each differential ring includes a magnetic ring and a magnetic ring mounting base. The magnetic ring is mounted on the inner layer of the magnetic ring mounting base near the conductor ring. The differential ring is sleeved on the outer layer of the conductor ring, and both can rotate freely by generating electromagnetic torque. The gaskets are sleeved on the outer layer of the conductor ring and are disposed between each adjacent differential ring.

[0006] As a further aspect of the present invention: the slip ring further includes an outer slip ring, which is disposed at one axial end away from the magnetic ring mounting base and on the outer layer.

[0007] As a further aspect of the present invention: the slip ring further includes a planar thrust bearing, which is mounted on one axial end of the outer ring of the slip ring away from the magnetic ring mounting base.

[0008] As a further aspect of the present invention: the differential ring further includes several sets of tensioning springs and tensioning pins; the tensioning springs and tensioning pins are circumferentially embedded in the outer ring of the differential ring for tensioning the inner diameter surface of the core of the wound film material.

[0009] As a further aspect of the present invention: the magnetic ring mounting base is provided with a gasket mounting cavity at one axial end to accommodate the gasket, and the gasket mounting cavity can reduce the width of the component composed of several slip rings.

[0010] The beneficial effects of the low-tension universal magnetic slip shaft involved in this invention are as follows: This invention features a structure where a conductor ring is fitted over the outer layer of the shaft core, allowing both to rotate simultaneously in the same direction at the same speed; simultaneously, a slip ring is fitted over the outer layer of the conductor ring, allowing both to rotate freely due to electromagnetic torque; furthermore, multiple slip rings are fitted over the outer layer of the conductor ring, with spacers between them. This achieves a single shaft with multiple slip rings, solving the problems of existing dual-air-path low-tension slip shafts, which are limited by their structure, unable to simultaneously wind materials of multiple widths, and suffer from limited specifications and complex structures. It offers advantages such as simple structure, low cost, high versatility, and high production efficiency. Attached Figure Description

[0011] Figure 1 This is a front view of the low-tension universal magnetic slip shaft of the present invention; Figure 2 This is the present invention. Figure 1 Sectional view along the AA direction; Figure 3 This is the present invention. Figure 1 Sectional view along the BB direction; Figure 4 This is the present invention. Figure 2 Enlarged view of section C; Figure 5 This is a three-dimensional structural view of the low-tension universal magnetic slip shaft of the present invention; Figure 6 This is an assembly drawing of the low-tension universal magnetic slip shaft of the present invention.

[0012] In the diagram: 100-shaft core, 200-conductor ring, 300-slip ring, 310-magnetic ring, 320-magnetic ring mounting base, 32a-shield mounting cavity, 330-tension spring, 340-tension pin, 350-slip ring outer ring, 360-flat thrust bearing, 400-shield, 500-tube core. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0014] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0016] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, a low-tension universal magnetic differential shaft includes a shaft core 100, a conductor ring 200, N gaskets 400, and N+1 differential rings 300. The conductor ring 200 is sleeved on the outer layer of the shaft core 100, and both can rotate simultaneously in the same direction at a constant angular velocity. The differential ring 300 includes a magnetic ring 310, a magnetic ring mounting base 320, a differential ring outer ring 350, a planar thrust bearing 360, several sets of tension springs 330, and tension pins 340. The magnetic ring 310 is mounted on the inner layer of the magnetic ring mounting base 320 near the conductor ring 200. The differential rings 300 are sleeved on the outer layer of the conductor ring 200, and both can rotate freely by generating electromagnetic torque. The gaskets 400 are sleeved on the outer layer of the conductor ring 200 and are disposed between each adjacent differential ring 300.

[0017] In use, the shaft core 100 is connected to the motor (not shown in the figure), and the conductor ring 200 is fixed to the shaft core 100, thereby ensuring that both can rotate simultaneously in the same direction at the same angular velocity. Preferably, the conductor ring 200 and the shaft core 100 are of the same length and are aligned.

[0018] Because the conductor ring 200 is fitted onto the outer layer of the shaft core 100, both can rotate simultaneously in the same direction at a constant angular velocity; simultaneously, the slip ring 300 is fitted onto the outer layer of the conductor ring 200, allowing both to generate electromagnetic torque and rotate freely; furthermore, multiple slip rings 300 are fitted onto the outer layer of the conductor ring 200, with spacers 400 positioned between them. This achieves a single shaft with multiple slip rings 300, staggered in arrangement, allowing each slip ring 300 to simultaneously wind materials of different widths. This solves the problems of existing dual-air-path low-tension slip shafts, which, due to structural limitations, cannot simultaneously wind materials of multiple widths, have limited specifications, and are structurally complex. It possesses the advantages of simple structure, low cost, high versatility, and high production efficiency. Combined with the core-passing mold 500 and unloading device, the core 500 can be quickly passed through and unloaded, enabling automated core-passing and unloading. Electromagnetic force is more stable than traditional pneumatic contact slip. The conductor ring 200 and the magnetic ring 310 have a gap contact that requires no maintenance. It has the advantages of simple disassembly and the ability to use both the conductor ring 200 and the shaft core 100 by replacing the gasket 400.

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, specifically, the outer ring 350 of the differential ring is disposed away from the axial end and outer layer of the magnetic ring mounting base 320. The outer ring 350 of the differential ring facilitates better material winding.

[0020] like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, specifically, the planar thrust bearing 360 is mounted on one axial end of the outer ring 350 of the slip ring, away from the magnetic ring mounting base 320.

[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, specifically, the tensioning spring 330 and the tensioning pin 340 are circumferentially embedded in the outer ring 350 of the differential ring to tension the inner diameter surface of the core 500 of the wound film material.

[0022] Preferably, five sets of tension springs 330 and tension pins 340 are arranged circumferentially, with two tension springs 330 under each tension pin 340. In use, the core 500 at the center of the wound material is fitted over the tension pin 340, which then tightens the inner diameter surface of the core 500. This design offers advantages such as simple structure, no need for pneumatic expansion of the core 500, no need for pneumatic slip, and low cost of electromagnetic slip.

[0023] like Figure 2 , Figure 4 As shown, the magnetic ring mounting base 320 has a gasket mounting cavity 32a at one axial end to accommodate the gasket 400. The gasket mounting cavity 32a reduces the width of the assembly composed of several slip rings 300, which is beneficial for winding narrower materials.

[0024] When winding wider materials, spacers 400 of varying thicknesses can be placed. The spacer mounting cavity 32a facilitates winding narrower materials. Low-tension winding of materials up to 8mm wide is possible. The shaft core 100 is universal, enabling simultaneous winding of multiple materials of different widths. Made of wear-resistant material, precision is controllable. It boasts advantages such as high stability, simple sliding disassembly, high-precision fit, and a maintenance-free screwless locking structure.

[0025] Working principle: The shaft core 100 and conductor ring 200 are rotated by a motor (not shown in the figure), causing the conductor ring 200 and shaft core 100 to generate electromagnetic drive on the magnetic ring 310. The magnetic ring mounting base 320 and the outer ring 350 of the slip ring make contact with the conductor ring 200 to achieve slip. The material on the tube core 500 pulls the slip ring 300 with low tension, realizing low-tension magnetic slip of each ring. The expansion spring 330 presses against the expansion pin 340 to tighten the tube core 500, realizing high-precision positioning of the tube core 500 on the slip ring 300 and avoiding misalignment of small-sized tubes. Risks include: the conductor ring 200 is a through-shaft structure, and the magnetic ring 310 can generate electromagnetic torque with the conductor ring 200 at any position; by controlling the rotational speed of the conductor ring 200, the magnetic ring 310 can generate a corresponding electromagnetic force, which acts on the slip ring 300 and contacts the conductor ring 200 through the inner ring ends; each adjacent slip ring 300 is separated by the planar thrust bearing 360 and is not affected; by replacing the shims 400 of different specifications, the slip shaft can be misaligned to receive materials, and the shaft core 100 can be used to receive low-tension materials with a width ≥8mm.

[0026] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention. The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A low-tension universal magnetic slip shaft, comprising a shaft core (100), characterized in that: It also includes a conductor ring (200), N gaskets (400) and N+1 slip rings (300); the conductor ring (200) is sleeved on the outer layer of the shaft core (100), and the two can rotate simultaneously in the same direction at the same angular velocity; the slip ring (300) includes a magnetic ring (310) and a magnetic ring mounting base (320); the magnetic ring (310) is mounted on the magnetic ring mounting base (320) near the inner layer of the conductor ring (200); the slip ring (300) is sleeved on the outer layer of the conductor ring (200), and the two can generate electromagnetic torque to rotate freely; the gaskets (400) are sleeved on the outer layer of the conductor ring (200) and are disposed between each adjacent slip ring (300).

2. The low-tension universal magnetic slip shaft according to claim 1, characterized in that: The slip ring (300) also includes a slip ring outer ring (350), which is disposed at one axial end and the outer layer away from the magnetic ring mounting base (320).

3. The low-tension universal magnetic slip shaft according to claim 2, characterized in that: The differential ring (300) also includes a planar thrust bearing (360), which is mounted on one axial end of the outer ring (350) of the differential ring away from the magnetic ring mounting base (320).

4. The low-tension universal magnetic slip shaft according to claim 3, characterized in that: The differential ring (300) also includes several sets of tension springs (330) and tension pins (340); the tension springs (330) and tension pins (340) are circumferentially embedded in the outer ring (350) of the differential ring to tension the inner diameter surface of the core (500) of the wound film material.

5. The low-tension universal magnetic slip shaft according to any one of claims 1 to 4, characterized in that: The magnetic ring mounting base (320) has a gasket mounting cavity (32a) at one axial end to accommodate the gasket (400). The gasket mounting cavity (32a) can reduce the width of the component composed of several slip rings (300).

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