Resist magnetic wheel

Abstract

The application relates to an anti-corrosion magnetic wheel, which comprises a shaft base, a magnet ring, an anti-corrosion film, two sealing rings and a side cover ring. The shaft base comprises a base and a shaft rod extending from the base. The magnet ring is sleeved on the shaft rod and has an outer ring surface and two opposite side planes. The outer ring surface is connected between the side planes. The anti-corrosion film is coated on the outer ring surface and covers part of the side planes. The two sealing rings are sleeved on the shaft rod and are located at the two sides of the magnet ring respectively. Each sealing ring abuts against the anti-corrosion film on the side plane. The side cover ring is locked on the shaft rod and longitudinally forces the two sealing rings and the magnet ring towards the base. Therefore, the magnet ring can be effectively prevented from being corroded by corrosive chemicals in the working environment.

Description

Technical Field

[0001] This invention relates to a magnetic wheel, and more particularly to a corrosion-resistant magnetic wheel that can protect a magnetic ring from corrosive chemicals. Background Technology

[0002] Gears are common transmission components in various manufacturing industries. However, they still wear down under prolonged contact, generating particles that severely impact yield in processes such as circuit board and wafer fabrication. Therefore, magnetic gears were developed to replace traditional gears. Magnetic gears do not have the teeth of traditional gears; instead, they utilize the attraction and repulsion of magnetic coupling to achieve transmission.

[0003] Typical magnetic wheels usually consist of a magnetic ring mounted on a metal shaft. However, in wet processes involving acidic or alkaline liquids, acidic or alkaline mists, or chemical vapors, the metal is prone to corrosion. In production lines for circuit boards and wafers undergoing pickling or chemical cleaning processes, the magnetic rings, which are exposed to the working environment for extended periods, are susceptible to corrosion from acidic or alkaline substances or corrosive chemicals, leading to malfunction and the need for replacement. Therefore, finding a way to effectively prevent corrosion and ensure permanent operation of magnetic wheels without the need for replacement is a pressing issue that needs to be addressed.

[0004] In view of this, the inventor has devoted himself to research and applied theoretical principles to address the shortcomings of the prior art, and has made every effort to solve the above-mentioned problems, which is the target of the inventor's improvement. Summary of the Invention

[0005] The main objective of this invention is to effectively prevent the magnetic ring from being corroded by corrosive chemicals in the working environment.

[0006] To achieve the above objectives, the present invention provides an anti-corrosion magnetic wheel, comprising a shaft seat, a magnet ring, an anti-corrosion film, two sealing rings, and a side cover ring. The shaft seat includes a base and a shaft extending from the base. The magnet ring is sleeved on the shaft and has an outer ring surface and two opposing side planes. The outer ring surface connects between the side planes. The anti-corrosion film covers the outer ring surface and shields at least a portion of each side plane. Each sealing ring is sleeved on the shaft and located on both sides of the magnet ring. Each sealing ring abuts against the anti-corrosion film on each side plane. The side cover ring locks the shaft and longitudinally presses the sealing rings and magnet rings toward the base.

[0007] In another embodiment of the present invention, the base and the side cover ring are respectively provided with an annular groove, and each of the sealing rings is respectively accommodated in the annular groove of the base and the side cover ring.

[0008] In another embodiment of the invention, each of the sealing rings has a diameter, and the annular grooves of the base and the side cover ring both have a width greater than the diameter.

[0009] In another embodiment of the invention, the magnet ring has a thickness, and the anti-corrosion film has a shielding length that shields each of the side planes, the sum of the shielding length and half of the width being greater than the thickness.

[0010] In another embodiment of the invention, each of the sealing rings has a diameter, and the annular grooves of the base and the side cover ring both have a depth, the diameter being greater than the depth.

[0011] In another embodiment of the present invention, the side cover ring is provided with an internal thread, and the shaft is provided with an external thread. The internal thread is screwed into the external thread to lock the side cover ring to the shaft.

[0012] In another embodiment of the present invention, both the internal thread and the external thread are coated with a thread sealant.

[0013] As another embodiment of the present invention, the outer edges of the base and the side cover ring are respectively provided with two opposing clamping planes.

[0014] In another embodiment of the invention, the bearing has a shaft hole that extends longitudinally through the base and the shaft.

[0015] In another embodiment of the present invention, the base is provided with a positioning hole that extends from the outer edge of the base to the shaft hole.

[0016] This invention also has the following advantages: A positioning hole penetrating the base to the shaft hole allows a positioning element to be inserted to press the rotating shaft and fix it to the shaft seat. Thread sealant is applied to the surfaces of the internal and external threads, ensuring a complete seal after screwing to prevent corrosive chemicals from seeping in through the threads. Clamping planes on the outer edges of the base and side cover rings allow for easy clamping with tools. Each sealing ring is housed within an annular groove, preventing it from being directly exposed to corrosive chemicals. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is an exploded perspective view of the present invention.

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Explanation of symbols in the attached diagram: 10: Shaft seat; 11: Base; 12: Shaft; 13: Shaft hole; 14: Positioning holes; 15: External thread; 16, 52: Clamping plane; 17, 53: Annular groove; 20: Magnetic ring; 21: Outer ring surface; 22: Side plane; 30: Anti-corrosion film; 40: Sealing ring; 50: Side cover ring; 51: Internal thread; A: Thread sealant; d: depth; D: Diameter; l: Shielding length; t: thickness; w: width. Detailed Implementation

[0021] The detailed description and technical content of the present invention will be explained in conjunction with the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the present invention.

[0022] This invention provides an anti-corrosion magnetic wheel; please refer to [reference needed]. Figures 1 to 3 As shown, it mainly includes a shaft seat 10, a magnet ring 20, an anti-corrosion film 30, two sealing rings 40 and a side cover ring 50.

[0023] In this embodiment, the bearing seat 10 is made of plastic, but the invention is not limited thereto. For example, the bearing seat 10 can also be made of corrosion-resistant metal or other corrosion-resistant materials. The bearing seat 10 includes a base 11 and a shaft 12, the shaft 12 extending longitudinally from one side of the base 11. Specifically, both the base 11 and the shaft 12 are cylindrical and have the same axis, and the diameter of the shaft 12 is smaller than the diameter of the base 11. The bearing seat 10 has a shaft hole 13, which extends longitudinally through the base 11 and the shaft 12, allowing the bearing seat 10 to be fitted onto a rotating shaft (not shown). The base 11 also has a positioning hole 14, which extends from the outer edge of the base 11 to the shaft hole 13, and is used to insert a positioning element (not shown) to press the rotating shaft and fix it onto the bearing seat 10. In this embodiment, the positioning hole 14 is a screw hole and the positioning element is a bolt, but the present invention is not limited thereto; for example, the positioning element can also be a pin. In addition, the shaft hole 13 can also be a non-circular hole, so that the shaft seat 10 can form a tight fit with the rotating shaft without slippage without the need for a positioning element and the positioning hole 14.

[0024] The magnet ring 20 is a ring-shaped magnet, and the present invention does not limit the magnetism of the magnet; the designer can make adjustments according to different needs. The magnet ring 20 is sleeved on the shaft 12. The magnet ring 20 has an outer ring surface 21 and two opposing side planes 22, and the outer ring surface 21 is connected between the two side planes 22.

[0025] The anti-corrosion film 30 is applied to at least a portion of the outer annular surface 21 and shields each side plane 22. In this embodiment, the anti-corrosion film 30 can be a protective layer formed by organic coating, inorganic coating, metallic coating, surface hardening treatment, cathodic treatment, or anodic treatment, etc., but the present invention is not limited to this, as long as it can effectively prevent the erosion of corrosive chemicals. Designers can also adjust the composition and thickness of the anti-corrosion film 30 according to the needs of different working environments.

[0026] Each sealing ring 40 is sleeved on the shaft 12 and located on the left and right sides of the magnet ring 20, and each sealing ring 40 abuts against the anti-corrosion film 30 on its respective side plane 22. In this embodiment, the sealing ring 40 is an O-ring, but the present invention is not limited thereto.

[0027] The side cover ring 50 is locked onto the shaft 12 and longitudinally presses against each sealing ring 40 and magnetic ring 20 towards the base 11, so that each sealing ring 40 is tightly clamped onto the anti-corrosion film 30 on each side plane 22. In this embodiment, the side cover ring 50 is a plastic part, but the present invention is not limited thereto. For example, the side cover ring 50 can also be made of a corrosion-resistant metal or other corrosion-resistant materials, and the side cover ring 50 and the shaft seat 10 are preferably made of the same material to facilitate manufacturing and assembly. The inner edge of the side cover ring 50 is provided with an internal thread 51, and the end of the shaft 12 is provided with an external thread 15. The internal thread 51 is screwed onto the external thread 15 to lock the side cover ring 50 onto the shaft 12. Preferably, a thread sealant A is coated on the surfaces of both the internal thread 51 and the external thread 15, so that the internal thread 51 and the external thread 15 are completely sealed by the cured thread sealant A after screwing, thereby preventing corrosive chemicals from seeping in from the threads. The base 11 and the outer edge of the side cover ring 50 are respectively provided with two opposing clamping planes 16 and 52, so that when the side cover ring 50 is locked to the shaft 12, it can be clamped on each clamping plane 16 and 52 by means of tools (such as pliers) to facilitate force to lock it.

[0028] To further explain, the base 11 has an annular groove 17 recessed on the side extending from the shaft 12, and the side cover ring 50 has another annular groove 53 recessed on the side facing the base 11. Each sealing ring 40 is respectively housed in the annular grooves 17 and 53, so that each sealing ring 40 is not directly exposed to the outside and subject to corrosion by corrosive chemicals.

[0029] It is worth noting that the magnetic ring 20 has a thickness t, each sealing ring 40 has a diameter D, and each annular groove 17, 53 has a width w and a depth d. In this embodiment, the width w is greater than the diameter D, and the diameter D is greater than the depth d, thereby causing each sealing ring 40 to protrude outside each annular groove 17, 53, so that when the side cover ring 50 is locked, the magnetic ring 20 can contact each sealing ring 40 to longitudinally compress it, thereby causing each sealing ring 40 to elastically deform. The anti-corrosion film 30 has a shielding length l that shields the side plane 22. The sum of the shielding length l and half the width w is greater than the thickness t, thereby ensuring that each sealing ring 40 abuts against the anti-corrosion film 30 to achieve a sealing effect, thereby preventing corrosive chemicals from seeping between the anti-corrosion film 30 and the sealing ring 40 and corroding the magnetic ring 20. In this embodiment, the shielding length l is equal to the thickness t of the magnetic ring 20, but the present invention is not limited thereto.

[0030] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can devise various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the protection scope of the patent application of the present invention.

Claims

1. A corrosion-resistant magnetic wheel, characterized in that, include: A bearing seat includes a base and a shaft extending from the base; A magnetic ring is fitted onto the shaft. The magnetic ring has an outer ring surface and two opposing side planes, with the outer ring surface connecting the two side planes. A corrosion-resistant film is applied to the outer annular surface and shields at least a portion of each of the side planes; Two sealing rings are fitted onto the shaft and located on both sides of the magnet ring, with each sealing ring abutting against the anti-corrosion film on its respective side plane; and A side cover ring is used to lock the shaft and longitudinally press each sealing ring and the magnet ring toward the base. The side cover ring is provided with an internal thread, and the shaft is provided with an external thread. The internal thread is screwed into the external thread to lock the side cover ring to the shaft. The surfaces of the internal thread and the external thread are coated with a thread sealant. The base and the side cover ring are respectively recessed with an annular groove. Each sealing ring is respectively accommodated in the annular groove of the base and the side cover ring. Each sealing ring has a diameter. The annular groove of the base and the side cover ring has a width and a depth. The width is greater than the diameter and the diameter is greater than the depth. The magnet ring has a thickness. The anti-corrosion film has a shielding length that shields each side plane. The sum of the shielding length and half of the width is greater than the thickness.

2. The anti-corrosion magnetic wheel according to claim 1, characterized in that, The base and the outer edge of the side cover ring are respectively provided with two opposing clamping planes.

3. The anti-corrosion magnetic wheel according to claim 1, characterized in that, The bearing has a shaft hole that extends longitudinally through the base and the shaft.

4. The anti-corrosion magnetic wheel according to claim 3, characterized in that, The base is provided with a positioning hole that extends from the outer edge of the base to the shaft hole.

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