JP3236819U - Anti-corrosion magnetic gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anticorrosion magnetic gear. The present invention relates to an anticorrosion magnetic gear provided with a shaft seat, a magnet ring, an anticorrosion membrane, two seal rings, and a side lid ring. The shaft seat is provided with a base and a shaft rod extending from the base, and the magnet ring is provided with an outer peripheral surface and two opposing side planes by fitting the shaft rod, and the outer peripheral surface is connected between the side planes. The anticorrosion membrane covers the outer peripheral surface, shields at least a part of each side plane, each seal ring fits the shaft rod, and is located on both sides of the magnet ring, and hits the anticorrosion membrane on each side plane. In contact, the side lid ring is tightened and joined to the shaft rod, and each seal ring and magnet ring are urged in the vertical direction of the base. This can effectively prevent the magnet ring from being corroded by corrosive chemicals in the working environment. [Selection diagram] Fig. 2

Description

The present invention relates to magnetic gears, in particular anticorrosion magnetic gears capable of protecting magnet rings from corrosion by corrosive chemicals.

Gears are the most common power transmission component in various manufacturing industries, but wear problems occur during long-term contact action, particles are generated, and yield is reduced in the manufacturing process of circuit boards or wafers. Significant impact. For this reason, a magnetic gear that replaces the operation of the gear is derived, and since the magnetic gear does not have the teeth of the conventional gear, power transmission is realized by utilizing the attraction and repulsion of the magnetic coupling force. is doing.

Common magnetic gears are usually attached to a magnetic ring on a metal shaft seat. However, in wet processes with acidic / alkaline liquids, acidic / alkaline mists, or chemical vapors, metal corrosion is likely to occur, or in the production line of circuit boards and wafers in pickling or chemical cleaning processes, the working environment. Magnet rings that are exposed for a long period of time are easily corroded by acidic / alkaline substances and corrosive chemical substances, so they do not operate normally and need to be replaced. The issue to be improved is whether or not it can be operated permanently.

In view of this, the present inventor has made efforts to solve the above-mentioned problems by repeating diligent research and combining the operation of the theory for the above-mentioned defects of the prior art, and as a result, the present inventor has become the goal of improvement. rice field.

A main object of the present invention is to provide an anticorrosion magnetic gear capable of effectively preventing a magnet ring from being corroded by corrosive chemicals in a working environment.

In order to achieve the above object, the present invention provides an anticorrosion magnetic gear provided with a shaft seat, a magnet ring, an anticorrosion membrane, two seal rings, and a side lid ring. The shaft seat is provided with a base and a shaft rod extending from the base, and the magnet ring is provided with an outer peripheral surface and two opposing side planes by fitting the shaft rod, and the outer peripheral surface is connected between the side planes. The anticorrosion membrane covers the outer peripheral surface, shields at least a part of each side plane, each seal ring fits the shaft rod, and is located on both sides of the magnet ring, and hits the anticorrosion membrane on each side plane. In contact, the side lid ring is fastened and joined to the shaft rod, and each seal ring and magnet ring are urged in the vertical direction of the base.

The present invention also has the following effects. That is, by inserting the positioning tool into the positioning hole penetrating the shaft hole from the base, the rotating shaft can be urged and fixed to the shaft seat. By applying a thread sealant to the surface of the female and male threads, it can be completely sealed after screwing, which prevents corrosive chemicals from entering through the threaded portion. By holding the holding plane on the outer edge of the base and the side lid ring with a tool, it is easy to apply force to tighten. By accommodating each seal ring in each annular groove, each seal ring is not directly exposed to the outside and corroded by corrosive chemical substances.

It is a three-dimensional appearance view of this invention. It is a three-dimensional exploded view of this invention. It is sectional drawing of this invention.

Hereinafter, the detailed description and technical contents of the present invention will be described with reference to the drawings, but the attached drawings are for illustration purposes only and are not intended to limit the present invention.

Referring to FIGS. 1 to 3, the present invention mainly provides an anticorrosion magnetic gear including a shaft seat 10, a magnet ring 20, an anticorrosion membrane 30, two seal rings 40, and a side lid ring 50. do.

In the present embodiment, the shaft seat 10 is a plastic part, but the present invention is not limited thereto, and for example, the shaft seat 10 may be manufactured of a corrosion-resistant metal part or other corrosion-resistant material. The shaft seat 10 includes a base 11 and a shaft rod 12, and the shaft rod 12 extends in the vertical direction from one side surface of the base 11. Specifically, the base 11 and the shaft rod 12 both have a columnar shape and have the same axis, and the diameter of the shaft rod 12 is smaller than the diameter of the base 11. The shaft seat 10 has a shaft hole 13, penetrates the base 11 and the shaft rod 12 in the vertical direction, and is used for fitting the shaft seat 10 to a rotating shaft (not shown). Further, the base 11 is also provided with a positioning hole 14, and the positioning hole 14 penetrates the shaft hole 13 from the outer edge of the base 11, and a positioning tool (not shown) is inserted to urge the rotating shaft. It is fixed on the shaft seat 10. In the present embodiment, the positioning hole 14 is a screw hole and the positioning tool is a bolt, but the present invention is not limited to this, and the positioning tool may be a pin, for example. Since the shaft hole 13 may also be a non-circular hole, the shaft seat 10 does not slip because it is brought into close contact with the rotating shaft without going through the positioning tool and the positioning hole 14.

The magnet ring 20 is a ring-shaped magnet, and the present invention does not limit the magnetism of the magnet, and the designer can adjust himself / herself according to different needs. The magnet ring 20 fits the shaft rod 12. The magnet ring 20 includes an outer peripheral surface 21 and opposite side planes 22, and the outer peripheral surface 21 is connected between the both side planes 22.

The anticorrosion membrane 30 covers the outer peripheral surface 21 and shields at least a part of each side plane 22. In the present embodiment, the anticorrosion membrane 30 may be a protective layer formed by an organic coating film, an inorganic coating film, a metal coating film, a surface hardening treatment, a cathode treatment, an anodizing treatment, or the like, but the present invention limits this. Not only can the corrosion caused by the corrosive chemicals be effectively prevented, but the designer can also adjust the composition and thickness of the anticorrosive membrane 30 according to the needs of different working environments.

Each seal ring 40 is fitted with a shaft rod 12 and is located on both the left and right sides of the magnet ring 20, and each seal ring 40 also abuts on the anticorrosion membrane 30 on each side plane 22. In this embodiment, the seal ring 40 is an O-ring, but the present invention is not limited thereto.

The side lid ring 50 is fastened and joined to the shaft rod 12, and each seal ring 40 and the magnet ring 20 are urged toward the vertical direction of the base 11, and each seal ring 40 is placed on the anticorrosion membrane 30 of each side flat surface 22. It is sandwiched so that it is in close contact with. In the present embodiment, the side lid ring 50 is a plastic part, but the present invention is not limited thereto, and for example, the side lid ring 50 may be manufactured of a corrosion-resistant metal part or other corrosion-resistant material. Moreover, in order to facilitate manufacturing and assembly arrangement, it is preferable that the side lid ring 50 is manufactured of the same material as the shaft seat 10. A female screw 51 is provided on the inner edge of the side lid ring 50, a male screw 15 is provided at the end of the shaft rod 12, and the female screw 51 is screwed into the male screw 15 to fasten the side lid ring 50 to the shaft rod 12. Preferably, the thread sealant A is applied to the surfaces of the female thread 51 and the male thread 15, and after the female thread 51 and the male thread 15 are screwed together, the thread sealant A can be completely sealed by the solidified thread sealant A, so that the corrosive chemical substance is screwed. Prevent intrusion from the part. Further, two holding planes 16 and 52 facing the outer edges of the base 11 and the side lid ring 50 are provided, respectively, and when the side lid ring 50 is tightened to the shaft rod 12, the holding planes 16 and 52 are used as tools ( For example, by holding it with a pliers), it is easy to apply force and tighten it.

Specifically, in the base 11, an annular groove 17 is recessed on the side surface on which the shaft rod 12 extends, and another annular groove 53 facing the side surface of the side lid ring 50 facing the base 11 is recessed. .. Each seal ring 40 is housed in each of the annular grooves 17 and 53, respectively, so that each seal ring 40 is directly exposed to the outside and is not corroded by corrosive chemical substances.

Note that the magnet ring 20 has a thickness t, each seal ring 40 has a diameter D, and each annular grooves 17 and 53 have a width w and a depth d. In this embodiment, since the width w is larger than the diameter D and the diameter D is larger than the depth d, each seal ring 40 protrudes from each of the annular grooves 17 and 53, and the magnet ring when the side lid ring 50 is tightened. Since 20 comes into contact with each seal ring 40 and is urged in the vertical direction, elastic deformation is caused in each seal ring 40. Further, the anticorrosion membrane 30 has a shielding length l that shields the side plane 22. Since the sum of the shielding length l and the 1/2 width w is larger than the thickness t, the corrosive chemical substances can be produced by the sealing effect of each sealing ring 40 coming into contact with the anticorrosive membrane 30. It is possible to prevent the magnet ring 20 from being corroded by entering between the anticorrosion membrane 30 and the seal ring 40. In the present embodiment, the shielding length l is the same as the thickness t of the magnet ring 20, but the present invention is not limited to this.

It goes without saying that a person skilled in the art may make various improvements and changes to the present invention as long as the present invention may have various other embodiments and does not deviate from the spirit and the essence of the present invention. However, such improvements and modifications are included in the scope of protection of the present invention.

10 Shaft Seat 11 Base 12 Shaft Rod 13 Shaft Hole 14 Positioning Hole 15 Male Thread 16, 52 Holding Plane 17, 53 Circular Groove 20 Magnet Ring 21 Peripheral Surface 22 Side Plane 30 Anticorrosion Membrane 40 Sealant 50 Side Cover Ring 51 Female Thread A Thread Sealant d Depth D Diameter l Shielding length t Thickness

w width

Claims (10)

A shaft seat having a base and a shaft rod extending from the base, and
A magnet ring into which the shaft rod is fitted, has an outer peripheral surface and two opposing side planes, and the outer peripheral surface is connected between the respective side planes.
An anticorrosion membrane that covers the outer peripheral surface and shields at least a part of each of the side planes.
Two seal rings into which the shaft rod is fitted, located on both sides of the magnet ring, and in contact with the anticorrosion membrane on each side plane,
An anticorrosion magnetic gear provided with a seal ring and a side lid ring for urging each of the seal rings and magnet rings in the vertical direction of the base, which are fastened and joined to the shaft rod. The anticorrosion magnetic gear according to claim 1, wherein the base and the side lid ring each have an annular groove recessed so as to face each other, and each of the seal rings is housed in each of the annular grooves. The anticorrosion magnetic gear according to claim 2, wherein each of the seal rings has a diameter, each of the annular grooves has a width, and the width is larger than the diameter. 3. The magnet ring has a thickness, the anticorrosion membrane has a shielding length for shielding each side plane, and the sum of the shielding length and the width of 1/2 is larger than the thickness. Anticorrosion magnetic gear described in. The anticorrosion magnetic gear according to claim 2, wherein each of the seal rings has a diameter, each of the annular grooves has a depth, and the diameter is larger than the depth. The anticorrosion magnetic gear according to claim 1, wherein the side lid ring is provided with a female screw, the shaft rod is provided with a male screw, and the female screw is screwed into the male screw to fasten the side lid ring to the shaft rod. .. The anticorrosion magnetic gear according to claim 6, wherein a thread sealant is applied to the surfaces of the female screw and the male screw. The anticorrosion magnetic gear according to claim 6, wherein two sandwiching planes facing each other are provided on the outer edges of the base and the side lid ring. The anticorrosion magnetic gear according to claim 1, wherein the shaft seat has a shaft hole, and the shaft hole penetrates the base and the shaft rod in the vertical direction. The anticorrosion magnetic gear according to claim 9, wherein a positioning hole is provided in the base, and the positioning hole penetrates from the outer edge of the base to the shaft hole.

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