Magnetic scraper and cutting fluid circulating filtering device thereof

Abstract

The utility model discloses a magnetic scraper and a cutting fluid circulating filtering device thereof, and aims to overcome the defect that scrap iron is difficult to scrape due to the magnetism of an existing magnetic wheel to the scrap iron. The magnetic scraper comprises a magnetic scraping roller and a chip scraping plate, the plate edge of the chip scraping plate is attached to the side wall face of the magnetic scraping roller, the magnetic scraping roller is provided with a plurality of electromagnets, the electromagnets are arranged in the magnetic scraping roller around the axis of the magnetic scraping roller at equal intervals, electric brushes are arranged on the two end faces of the magnetic scraping roller around the axis at equal intervals, and the electric brushes are electrically connected with the electromagnets at the corresponding positions. Conductors are arranged at the two ends of the magnetic scraping roller respectively, fixedly-arranged contact rings are arranged at the ends of the wires, the contact rings make sliding contact with the electric brushes so that the electromagnets and the wires can form a path, and the contact rings are provided with notches which are formed in the positions corresponding to the scrap scraping plates. The electric brush and the contact ring are used for achieving disconnection of a specific position and connection of the other part, so that the adsorption force of the magnetic scraping roller to scrap iron is adjusted at different positions, and the scrap iron is easily released on the scrap scraping plate on the premise that the scrap iron is efficiently adsorbed from cutting fluid.

Description

Technical Field

[0001] The utility model relates to the field of cutting fluid circulation, and more specifically, to a magnetic scraper and a cutting fluid circulation filtering device thereof. Background Art

[0002] Cutting fluid plays a role of cooling and lubrication in the field of machining. For environmental protection and economic considerations, cutting fluid should be recycled.

[0003] During the circulation process of the circulating fluid, the metal debris in it needs to be filtered to prevent the metal debris from entering the pump body and pipeline and causing damage to the pump body and pipeline.

[0004] One of the more efficient ways is to absorb the iron chips through a magnetic wheel, and then collect the iron chips on the magnetic wheel through a scraper plate, thus circulating the separation of cutting fluid and iron chips.

[0005] However, when the magnetic wheel passes through the scraper plate, the iron chips are difficult to fall off the magnetic wheel due to the magnetic force of the magnetic wheel, and are limited by the scraper plate to move, damaging the magnetic wheel and the scraper plate, causing the iron chips to accumulate on the scraper plate and be difficult to be discharged along the preset channel due to gravity.

[0006] The present application aims to realize a magnetic scraper and a cutting fluid circulation and filtering device thereof to improve the above-mentioned deficiencies. Summary of the invention

[0007] The utility model overcomes the shortcoming that iron chips are difficult to separate from a magnetic wheel, and provides a magnetic scraper and a cutting fluid circulation filtering device thereof, which can realize the local magnetism of the magnetic wheel, thereby making it easy to separate the magnetic wheel from the iron chips.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A magnetic scraper comprises a magnetic scraper roller and a scraper plate, wherein the edge of the scraper plate is in contact with the side wall of the magnetic scraper roller, the magnetic scraper roller has a plurality of electromagnets, and the electromagnets are arranged at equal intervals around the axis of the magnetic scraper roller inside the magnetic scraper roller, and the two end surfaces of the magnetic scraper roller have brushes arranged at equal intervals around the axis, and the brushes are electrically connected to the electromagnets at corresponding positions, conductors are respectively arranged at the two ends of the magnetic scraper roller, and a fixed contact ring is arranged at the end of the wire, and the contact ring and the brush are in sliding contact so that the electromagnet and the wire form a passage, and the contact ring has a notch, and the notch is arranged at the corresponding scraper plate position.

[0010] The idea adopted by the present application to solve the problem is to adjust the magnetism of the magnetic scraper roller corresponding to the position of the scraper plate, reduce the adsorption capacity of the magnetic scraper roller to iron filings, so that the iron filings can be easily separated from the magnetic scraper roller without being accumulated.

[0011] The magnetism of the magnetic scraper roller of the present application comes from the electromagnet. The generation of the magnetism of the electromagnet depends on the electric current. As long as the electric current is cut off, the magnetism of the electromagnet will be greatly attenuated or even disappear. Therefore, the present application sets a notch in the contact ring at the corresponding position of the scraper plate. In this way, the electromagnet at this position can be cut off from the power supply, so that the magnetism disappears. When the magnetic scraper roller continues to rotate, the brush corresponding to the electromagnet at this position contacts the contact ring to generate magnetism, which can absorb iron chips in the cutting fluid, and the electromagnet at the upstream position in the rotation direction enters the circuit-breaking state, and the magnetism disappears.

[0012] Through the structure, the magnetism of the magnetic scraper roller always disappears at the position corresponding to the scraper plate, while the magnetism is maintained at other positions. It can effectively absorb iron chips and release them when corresponding to the scraper plate. The scraper plate only needs to overcome the surface tension brought by the iron chips and the liquid on the surface of the magnetic scraper roller to smoothly scrape off the iron chips, thereby reducing the sliding of the iron chips on the magnetic scraper roller, reducing the wear of the magnetic scraper roller and the scraper plate, and making it easy to discharge the iron chips.

[0013] Preferably, a magnetic blocking block is also included, and the magnetic blocking block is arranged between adjacent electromagnets. The advantage of doing so is that the magnetic influence of the energized electromagnet on the position of the non-energized electromagnet can be reduced, and the magnetism of the position of the non-energized electromagnet can be further eliminated.

[0014] Preferably, two ends of the axis of the magnetic scraper roller are fixedly connected with connecting flanges, and the magnetic scraper roller is fixedly connected to the driving shaft through the connecting flanges. The magnetic scraper roller is driven by the motor through the connecting flanges to rotate along the axis.

[0015] Preferably, the number of the electromagnets is 6.

[0016] Preferably, the magnetic scraper roller has a plurality of groups of electromagnets along the length direction, and the electromagnets in one group are connected in series and connected to corresponding brushes at both ends.

[0017] Preferably, the scraper plate is inclined relative to the normal of the contact surface of the magnetic scraper roller, so that the inclined surface can be formed more smoothly and the scraped iron chips can fall along the scraper plate by gravity. At the same time, the scraper plate and the surface of the magnetic scraper roller form an acute angle, which can convert the moving speed of the iron chips into the force moving along the scraper plate as much as possible, thereby improving the scraping efficiency.

[0018] A cutting fluid circulation filtering device comprises the magnetic scraper as described above.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] Brushes and contact rings are used to achieve sliding intermittent connection, realizing partial circuit breaking and passage in another part, maintaining partial zero and low magnetism and another part of high magnetism, thereby adjusting the adsorption of iron chips by the magnetic scraper roller at different positions, and then easily releasing the iron chips on the scraper plate under the premise of efficiently adsorbing iron chips from the cutting fluid, reducing the relative displacement of the iron chips relative to the magnetic scraper roller, and reducing the wear of the magnetic scraper roller and the scraper plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the axial side of the utility model;

[0023] In the figure:

[0024] Magnetic scraper roller 1, scraper plate 2, electromagnet 3, brush 4, contact ring 5, notch 6. DETAILED DESCRIPTION

[0025] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.

[0029] A magnetic scraper, as shown in parameters 1 and 2, comprises a magnetic scraper roller 1 and a scraper plate 2, wherein the plate edge of the scraper plate 2 is in contact with the side wall surface of the magnetic scraper roller 1. The scraper plate 2 is inclined relative to the normal of the contact surface of the magnetic scraper roller 1. In this way, the inclined surface can be formed more smoothly, and the scraped iron filings can be made to fall along the scraper plate 2 by utilizing gravity. At the same time, the angle between the scraper plate 2 and the surface of the magnetic scraper roller 1 is an acute angle, which can convert the moving speed of the iron filings as much as possible into the force moving along the scraper plate 2, thereby improving the scraping efficiency. Specifically, the end in contact with the side wall surface is the high end of the scraper plate 2, and the other end is the low end.

[0030] The lower part of the magnetic scraper roller 1 is immersed in the cutting fluid, and the plate edge contacts the magnetic scraper roller 1 above the liquid surface of the cutting fluid.

[0031] It is assumed that the axis of the magnetic scraper roller 1 is the origin of the polar coordinate system, and the line from the plate edge to the axis is the polar axis.

[0032] The magnetic scraper roller 1 has a plurality of electromagnets 3 inside. The electromagnets 3 are arranged at equal intervals around the axis of the magnetic scraper roller 1. In some embodiments, the electromagnets 3 are distributed in the same cross section. In other embodiments, there are a plurality of groups of electromagnets 3 in the length direction, each group of electromagnets 3 corresponds to a plurality of electromagnets 3 under this plane, and the projections of the groups of electromagnets 3 overlap on a plane perpendicular to the axial direction.

[0033] The pole diameters of the electromagnets 3 are the same, and the differences in pole angles between adjacent electromagnets 3 are the same.

[0034] In some embodiments, the number of electromagnets 3 in the same cross section is 6. The polar angles of the electromagnets 3 are 60°, 120°, etc. The magnetic scraper roller 1 is arranged along the length direction, and the electromagnets 3 in one group are connected in series and connected to the corresponding brushes 4 at both ends.

[0035] The two end surfaces of the magnetic scraper roller 1 are provided with brushes 4 arranged at equal intervals around the axis, and the brushes 4 are electrically connected to the electromagnets 3 at corresponding positions.

[0036] Taking the embodiment of six electromagnets 3 as an example, the brushes 4 in this embodiment are also arranged in a manner of polar angles of 60°, 120°, . . . .

[0037] It also includes a magnetic blocking block, which is arranged between adjacent electromagnets 3. The advantage of this is that it can reduce the magnetic influence of the energized electromagnet 3 on the position of the non-energized electromagnet 3, and further eliminate the magnetism of the position of the non-energized electromagnet 3.

[0038] The two ends of the axis of the magnetic scraper roller 1 are fixedly connected with connecting flanges, and the magnetic scraper roller 1 is fixedly connected to the driving shaft through the connecting flanges. The magnetic scraper roller 1 is driven by the motor through the connecting flanges to rotate along the axis. The brush 4 is arranged on the outside of the connecting flange.

[0039] Conductors are provided at both ends of the magnetic scraper roller 1, and a fixed contact ring 5 is provided at the end of the wire. The contact ring 5 and the brush 4 are in sliding contact so that the electromagnet 3 and the wire form a passage. The contact ring 5 has a notch 6, and the notch 6 is provided at a position corresponding to the scraper plate 2. In this embodiment, the angle of the notch 6 is 60 degrees, and 0° is located at the center of the notch 6.

[0040] A cutting fluid circulation filtering device comprises the magnetic scraper as described above.

[0041] The idea adopted by the present application to solve the problem is to adjust the magnetism of the magnetic scraper roller 1 corresponding to the position of the scraper plate 2, reduce the adsorption capacity of the magnetic scraper roller 1 to iron filings, so that the iron filings can be easily separated from the magnetic scraper roller 1 without being accumulated.

[0042] The magnetism of the magnetic scraper roller 1 of the present application comes from the electromagnet 3. The generation of the magnetism of the electromagnet 3 depends on the electric current. As long as the electric current is cut off, the magnetism of the electromagnet 3 will be greatly attenuated or even disappear. Therefore, the present application sets a notch 6 in the contact ring 5 at the corresponding position of the scraper plate 2. In this way, the electromagnet 3 at this position can be cut off from the power supply, so that the magnetism disappears. When the magnetic scraper roller 1 continues to rotate, the brush 4 corresponding to the electromagnet 3 contacts the contact ring 5 to generate magnetism, which can absorb iron filings in the cutting fluid, and the electromagnet 3 at the upstream position in the rotation direction enters the circuit-breaking state, and the magnetism disappears.

[0043] Taking the scraper plate as the reference system, the magnetism at the position corresponding to the scraper plate 2 will always disappear, and the magnetism of the electromagnet will be restored after moving away from the scraper plate 2; recording the magnetic changes of a certain electromagnet, it is always accompanied by rotation and obeys the periodic changes of presence-absence-presence-absence. Taking the magnetic scraper roller 1 as the reference system, the electromagnets lose and regain magnetism one by one, and the speed of this phenomenon is the same as the rotation speed of the magnetic scraper roller.

[0044] Through the structure, the magnetism of the magnetic scraper roller 1 always disappears at the position corresponding to the scraper plate 2, while the magnetism is maintained at other positions. It can effectively absorb iron filings and release them when corresponding to the scraper plate 2. The scraper plate 2 only needs to overcome the surface tension brought by the iron filings and the liquid on the surface of the magnetic scraper roller 1 to smoothly scrape off the iron filings, thereby reducing the sliding of the iron filings on the magnetic scraper roller 1, reducing the wear of the magnetic scraper roller 1 and the scraper plate 2, and making it easy to discharge the iron filings.

[0045] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A magnetic scraper, characterized in that: It includes a magnetic scraper roller and a scraper plate. The edge of the scraper plate is in contact with the side wall of the magnetic scraper roller. The magnetic scraper roller has a plurality of electromagnets. The electromagnets are arranged inside the magnetic scraper roller at equal intervals around the axis of the magnetic scraper roller. The two end surfaces of the magnetic scraper roller have brushes arranged at equal intervals around the axis. The brushes are electrically connected to the electromagnets at corresponding positions. Conductors are respectively provided at the two ends of the magnetic scraper roller. A fixed contact ring is provided at the end of the wire. The contact ring and the brush are in sliding contact so that the electromagnet and the wire form a passage. The contact ring has a notch, and the notch is arranged at the corresponding scraper plate position.

2. A magnetic scraper according to claim 1, characterized in that: The device also includes a magnetic blocking block, which is arranged between adjacent electromagnets.

3. A magnetic scraper according to claim 1, characterized in that: Two ends of the axis of the magnetic scraper roller are fixedly connected with connecting flanges, and the magnetic scraper roller is fixedly connected to the driving shaft through the connecting flanges.

4. A magnetic scraper according to claim 3, characterized in that: The number of electromagnets is 6.

5. A magnetic scraper according to claim 3, characterized in that: The magnetic scraper roller has a plurality of groups of electromagnets along the length direction, and the electromagnets in one group are connected in series and connected to corresponding brushes at both ends.

6. A magnetic scraper according to claim 1, characterized in that: The scraper plate is inclined relative to the normal line of the contact surface of the magnetic scraper roller.

7. A cutting fluid circulation filter device, characterized in that: Comprising the magnetic scraper as described in any one of claims 1 to 6.

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