KR101059268B1 - Magnetic coupling for conveyor - Google Patents

Abstract

The present invention relates to a magnet coupling for a conveyor, and more particularly to a magnet coupling for a conveyor that can improve the rotational force of the conveyor shaft and can freely adjust the outer diameter of the magnet gear.

In the magnet coupling for conveyor according to the present invention, a fan-shaped split electrodes having a trapezoidal cross section or an outer arc and an inner arc are alternately magnetized to the N pole and the S pole. A magnet to form a cylindrical shape; One side is fixed to the magnet, the other side and the holder is connected to the shaft used for the conveyor; A magnet gear including a housing covering the magnet and having an outer surface that is in contact with the holder may be formed in pairs in a non-contact facing manner.

Split electrodes, couplings, magnet gears, conveyors, shafts

Description

Magnetic coupling for conveyor

The present invention relates to a magnet coupling for a conveyor, and more particularly to a magnet coupling for a conveyor that can improve the rotational force of the conveyor shaft and can freely adjust the outer diameter of the magnet gear.

In general, gear transmission systems known in the art have adopted a gear transmission method involving mechanical contact.

However, such a mechanical gear has a noise generated by meshing between gears, dust generated by meshing between gears, and thus deteriorates durability performance, and has a problem in that lubrication should be performed regularly.

Recently, a magnet gear that transmits power in a non-contact manner by using magnetic attraction force and repulsive force has been developed and used as a technology to replace the mechanical gear.

Such a magnet gear is a device that transmits power in a non-contact manner using magnets to LCD manufacturing equipment, semiconductor manufacturing equipment, pharmaceutical equipment, and food manufacturing equipment that require high cleanliness in preparation for contamination caused by dust, metal particles, and noise. It is used.

Conventional circular cylinder magnet gear is used by mounting the shaft in the hole in the aluminum or plastic holder while the aluminum or plastic injection holder is fitted to the magnet gear.

That is, the cylindrical magnet is formed in one piece, the outer diameter varies depending on the equipment in which the cylindrical magnet is used, and the cylindrical magnet gears of different sizes are manufactured by separately manufacturing a mold according to the outer diameter size to manufacture the magnet gear. I have a problem going up.

In addition, when the magnet gear is used in combination as a coupling, the rotational force transmitted to the shaft by the magnet gear becomes a problem, and efforts are being made to improve these parts.

In addition, the magnet coupling can be completely separated from the driving part and the rotating part as compared with the mechanical coupling, so that the moving part can be moved. Will continue steadily.

SUMMARY OF THE INVENTION An object of the present invention for solving the above-mentioned problems is to produce cylindrical magnets of various outer diameters using a divided magnet to manufacture a magnet coupling using the same.

It is also intended to disclose a structure of a magnet coupling that can be applied to a variety of conveyor devices and to facilitate industrial access of the product accordingly.

Conveying magnet coupling according to the present invention for solving the above problems, the cross-section is a trapezoidal shape or the fan-shaped split electrodes having an outer arc and the inner arc is alternately N A magnet which is magnetized to the pole and the S pole to form a cylindrical shape; One side is fixed to the magnet, the other side and the holder is connected to the shaft used for the conveyor; A magnet gear including a housing covering the magnet and having an outer surface that is in contact with the holder may be formed in pairs in a non-contact facing manner.

Here, it is preferable that a circumferential groove is formed on one surface of the holder in the circumferential direction so that the magnet can be fitted thereto.

Here, the magnet gear may be a combination of split electrodes of 6 poles, 8 poles, 10 poles, 12 poles 14 poles, 16 poles.

In addition, the conveyor magnet coupling according to the present invention, the first holder is connected to the first shaft and the other is connected to the first magnet and the first housing, the first housing is assembled to the first holder and An outer ring magnet gear including a first magnet cross-assembled with split electrodes having N and S poles toward an inner diameter of the first housing; One end of the second shaft is connected to the second shaft is connected to the second magnet and the second housing, the second housing assembled to the second holder, the inner diameter of the first housing and the second holder And an inner ring magnet gear including a second magnet cross-assembled split electrodes having N and S poles between outer diameters, wherein the inner ring magnet gear is non-contactedly inserted into the outer ring magnet gear. Is done.

Here, the front end of the inner ring magnet gear is preferably covered with a housing cap to maximize the magnetic properties.

Here, each of the split electrodes of the outer ring and inner ring magnet gears may have a trapezoidal shape having a cross section or a fan shape having an outer arc and an inner arc.

Here, each of the outer ring and inner ring magnet gear may be a combination of split electrodes of 6 poles, 8 poles, 10 poles, 12 poles 14 poles, 16 poles.

Here, the N, S pole magnetization method of the split electrode of the outer ring or inner ring magnet gear is when the outer layer of any one of the split electrodes to the N pole, the inner layer is the S pole, the outer layer of the left and right split electrodes is the S pole, the inner layer is It is desirable to implement alternating magnetization to the north pole.

Here, the first housing is made of a ferromagnetic material, the second housing is preferably made of a non-magnetic material to effectively exhibit the magnetic properties.

According to the configuration of the present invention described above, it is possible to produce a cylindrical magnet of a variety of outer diameters using a divided magnet to manufacture a magnet coupling using the same, and also apply a structure of a magnet coupling that can be applied to various conveyor devices It is possible to increase the industrial availability.

Hereinafter, with reference to the accompanying drawings will be described the structure and effect of the magnet coupling for a conveyor according to the present invention.

1 shows the structure of a magnet coupling for a conveyor according to a first embodiment of the present invention, Figure 3 shows a cross-sectional view of the first and second embodiments of the present invention.

As shown in Figure 1, the conveyor magnet coupling 100 according to the present invention is a pair of left and right are opposed to each other positioned.

The opposing pair of couplings 100 rotates the shaft by transmitting power to both sides in a non-contact manner by using magnetic attraction and repulsion forces by a magnet inside. That is, when the driving force of the drive motor installed in the conveyor or the like is transmitted to one magnet gear 101, the magnet 101 and the shaft 103 connected thereto rotates, and the magnetic attraction force and repulsion force are transmitted to the other magnet gear 102. Thus, the other magnet gear 102 and the shaft 104 connected thereto rotate.

The magnet gear 101 covers the housing 110 to allow the magnet 130 to be inserted and fixed therein, the magnet 130 to which the plurality of split electrodes 131 are coupled, and the magnet 130 to cover one side. It comprises a holder 120 is formed with a fastener 121 that can be connected to the shaft.

The magnet 130 is composed of a combination of a plurality of split electrodes 131, and the N pole and the S pole are alternately arranged. The plurality of split electrodes 131 may be preferably selected from any one of 6, 8, 10, 12, 14, and 16 poles.

The shape of the split electrode 131 may be implemented in a sector shape having a sector, a trapezoid, a circle or a quadrangle, a polygon, or a section having an outer arc and an inner arc.

Preferably, the cross section can have a long rod shape in the axial direction as a fan shape having an outer arc and an inner arc. Since the split electrodes 131 are manufactured to have the same size, the number of the split electrodes 131 can be adjusted to adjust the outer diameter of the entire magnet. The magnet shown is 12 poles, and when the outer diameter at this time is D, two split electrodes are subtracted to make 10 poles, and a magnet having an outer diameter of D1 smaller than the outer diameter D can be formed. When the pole is made, it is possible to form a magnet having an outer diameter of D2 larger than the outer diameter D.

Referring to Figure 3, Figure 3 shows a cross-sectional view of the magnet coupling, the magnet 300 is a housing 310, the magnet 330 and the holder 320 is coupled to the left and right facing non-contact, respectively, both sides Has a structure in which the shaft 340 is mounted.

The housing 310 is formed to completely surround one side of the magnet 330, and serves to secure and secure the magnet 330. As the material, nonmagnetic materials such as aluminum, SUS, and PVC may be used.

The holder 320 is a part (circumferential groove, 321) on which the magnet is seated, and serves to fix the shaft 340. The material is made of a magnetic material, which is a magnet, to prevent magnetic leakage to the rear and increase the characteristics of the product. It is desirable to give. Of course, the shaft 340 may be changed to a D-cutting method, a set skew method, or a powder lack method.

As the material of the magnet used as the split electrode, commercially available ferromagnetic materials such as NdFeB sintered magnets, SmCo sintered magnets, and NdFeB bonded magnets may be used.

Figure 2 shows the structure of a magnet coupling for a conveyor according to a second embodiment of the present invention. The second embodiment shown in FIG. 2 has the same structure as the first embodiment shown in FIG. 1 except that only the shape of the fastener 221 to which the shaft is mounted has a different structure.

Figure 4 shows the structure of a magnet coupling for a conveyor according to a third embodiment of the present invention, Figure 5 shows a cross-sectional view of a third embodiment of the present invention, Figure 6 is a third embodiment of the present invention The magnet structure of the split electrodes applied to the magnetic coupling for the conveyor is shown.

4, the conveyor magnet coupling 400 according to the third embodiment of the present invention consists of a non-contact coupling of the outer ring magnet gear 410 and the inner ring magnet gear 420.

The outer ring magnet gear 410 consists of a first holder 412, a first magnet 413, and a first housing 424, and the inner ring magnet gear 420 includes a second holder 422 and a second magnet 423. ), A second housing 424, and a housing cap 425.

Looking at the assembly structure of the outer ring magnet gear 410 with reference to Figures 4 and 5, one surface of the first holder 412 abuts the first magnet 413 and the first connector 414 is covered The first magnet 413 and the first housing 414 are coupled to each other by 412b, and the other surface is mounted with the first shaft 411 and the first shaft 411 with a mood bolt from the first fixture 412a. Fix it.

Looking at the assembly structure of the inner ring magnet gear 420 with reference to Figures 4 and 5, one surface of the second holder 422 is formed with a second connector 422b on which the second magnet 423 is mounted. The second magnet 423 and the second connector 422b are covered and fixed by the housing 424, and the second surface of the second shaft 421 is mounted and the second shaft is formed by a mood bolt on the second fixing body 422a. Fix 421.

Here, the first housing 414 serves to fix the first magnet 413, and furthermore, the first housing 414 may be implemented with a ferromagnetic material so as not to escape the magnetic force acting between the magnets, and the second housing ( 424 serves to fix the second magnet 423 and to use a nonmagnetic material so that the magnetic force between the first magnet 413 and the second magnet 423 of the outer ring magnet gear 410 is not affected. desirable.

In addition, the first magnet 413 and the second magnet 423 is a combination of a plurality of divided electrodes of the N, S poles, the split electrodes (413a, 423a) can be all made of a polygonal cross-section, Preferably, the trapezoid or the cross section can be implemented in a fan shape having an outer arc and a inner arc.

Referring to FIG. 5, in the cross-sectional structure in which the outer ring and the inner ring magnets 410 and 420 are combined, the N and S pole magnetization methods of the split electrodes of the outer ring or the inner ring magnet gear are made to the N pole of the split electrode. In this case, the inner layer is S pole, the outer layer of the left and right split electrodes is S pole, the inner layer is alternately magnetized to the N pole.

In this coupling, the inner ring magnet 420 is fixed to the shaft, and then the outer ring magnet 410 is approached to automatically position itself in the center of the magnet inside the coupling 400. After the positioning, the inner ring magnet Force acts toward the rotational torque direction between the 420 and the outer ring magnet 410, the attraction force between the shaft of the inner ring magnet 420 and the outer ring magnet 410 does not act to transmit the rotational force in the desired direction You have a structure.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the above-described technical configuration of the present invention may be embodied by those skilled in the art to which the present invention pertains without changing its technical spirit or essential features of the present invention. It will be appreciated that the present invention may be practiced as. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

1 shows a structure of a magnet coupling for a conveyor according to a first embodiment of the present invention.

Figure 2 shows the structure of a magnet coupling for a conveyor according to a second embodiment of the present invention.

3 shows a cross-sectional view of the first and second embodiments of the invention.

Figure 4 shows the structure of a magnetic coupling for a conveyor according to a third embodiment of the present invention.

5 shows a cross-sectional view of a third embodiment of the present invention.

6 shows a magnetization structure of a split electrode applied to a magnetic coupling for a conveyor according to a third embodiment of the present invention.

Claims (9)

delete delete delete One side of the first shaft is connected, the other side of the first holder is connected to the first magnet and the first housing, the first housing assembled to the first holder, and the N, S pole toward the inner diameter of the first housing An outer ring magnet gear including a first magnet cross-assembled with the split electrodes; One end of the second shaft is connected to the second shaft is connected to the second magnet and the second housing, the second housing assembled to the second holder, the inner diameter of the first housing and the second holder An inner ring magnet gear including a second magnet cross-assembled split electrodes having N and S poles between outer diameters; The inner ring magnet gear is a non-contact insertion of the outer ring magnet gear is formed, the magnet coupling for the conveyor. 5. The method of claim 4, A magnet coupling for a conveyor, wherein a housing cap is capped at the tip of the inner ring magnet gear. 5. The method of claim 4, The split electrodes of the outer ring and inner ring magnet gears each have a trapezoidal cross section or a fan shape having an outer arc and an inner arc. The method of claim 6, The outer ring and inner ring magnet gear each is a combination of 6 poles, 8 poles, 10 poles, 12 poles 14 poles, 16 poles split electrodes, the magnet coupling for the conveyor. 5. The method of claim 4, The N and S pole magnetization method of the split electrode of the outer ring or the inner ring magnet gear is when the outer layer of any one split electrode is the N pole, the inner layer is the S pole, the outer layer of the left and right split electrodes is the S pole, and the inner layer is the N pole. Magnet coupling for the conveyor, alternatingly magnetized. 5. The method of claim 4, The first housing is made of a ferromagnetic material, the second housing is made of a nonmagnetic material, a magnet coupling for a conveyor.

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