Filter paper, filter element and filter

Abstract

The filter paper is made of a material with the thickness of 0.005-0.025 mm, a plurality of through oil inlet holes and a plurality of through oil outlet holes are formed in the filter paper, and a plurality of through rod penetrating holes are formed in the edge or the middle of the filter paper or the edge and the middle of the filter paper. The filter paper is made of waterproof and / or oil-proof materials. The oil filter has the beneficial effects that various different filter paper structures are designed, so that the arrangement of the oil inlet holes and the oil outlet holes can adapt to different oil products; a plurality of different filter paper materials are adopted, so that the filter paper can adapt to different application scenes; the utility model further provides related application of the device.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to filter paper, a filter element and a filter. Background Art

[0002] In the field of mechanical processing, a large number of processing equipment such as milling machines, drilling machines and grinders require the use of coolant during processing, either oily or water-based coolant, to cool the cutter heads, grinding heads, etc. to ensure their hardness. The recovered coolant is hot and mixed with a large amount of metal debris. How to filter and reuse the recovered coolant is a technical problem that the utility model applicant has been studying. In the prior application 2020226086955, the applicant provided an oil filter that uses porous filter paper and staggered oil inlet and outlet holes to achieve the purpose of improving filtration efficiency under the same volume. In this regard, the applicant further improved it, hoping to adapt it to the purpose of oil cooling or water cooling, and further improved the structure of the filter paper, making it easy to process and diverse, suitable for different oil products. As is common knowledge in the industry, different coolants have different viscosities. When processing different products, the coolant will also carry metal debris of different particle sizes. How to design a corresponding filter paper structure according to actual needs is a technical problem that needs to be solved urgently. Utility Model Content

[0003] The purpose of the utility model is to provide a coolant filter that solves the above problems.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A filter paper is made of a material with a thickness of 0.005 to 0.025 mm. The filter paper is provided with a plurality of through oil inlet holes and a plurality of through oil outlet holes. The filter paper is provided with a plurality of through rod holes at the edge or the middle or at the edge and the middle. The filter paper is made of a waterproof and / or oil-proof material.

[0006] Preferably, the filter paper is made of wood pulp, or the filter paper is made of non-woven fabric made of chemical fiber, or the filter paper is made of plastic, or the filter paper is made of stainless steel sheet.

[0007] Preferably, the oil inlet and the oil outlet are both square structures of the same or different sizes, and the four corners of the oil inlet and the oil outlet have R angles.

[0008] Preferably, the oil inlet holes and the oil outlet holes form an M×N rectangular array and are arranged on the filter paper in an intermittent manner.

[0009] Preferably, the oil inlet holes and the oil outlet holes are arranged in multiple rows, the oil inlet holes and the oil outlet holes in each row are arranged alternately, and the oil inlet holes and the oil outlet holes in the upper and lower rows are arranged in a herringbone structure.

[0010] Preferably, the oil inlet holes are all circular holes; the oil outlet holes are all circular holes; the diameters of the oil inlet holes and the oil outlet holes are equal or unequal; the oil inlet holes and the oil outlet holes are arranged in multiple rows on the filter paper, and the oil inlet holes and the oil outlet holes in each row are staggered.

[0011] Preferably, the oil inlet holes and the oil outlet holes are arranged in multiple rows, with the upper and lower rows being staggered, and the oil inlet holes and the oil outlet holes in each row are staggered.

[0012] The utility model also provides a filter element, which includes a plurality of the filter papers described above, all of which are aligned and stacked on each other, one or more connecting rods pass through all the rod holes, and both ends are exposed outside the filter paper; a cover plate is provided at each end of all the filter papers; at least one of the cover plates is provided with a through hole corresponding to the connecting rod, one end of the connecting rod passes through the through hole, and the two cover plates are squeezed and fixed on the filter paper by a nut connected by thread; a through oil delivery hole is provided on one of the cover plates corresponding to the oil inlet hole, and a through oil collecting hole is provided on the other cover plate corresponding to the oil outlet hole.

[0013] The utility model also provides a filter, which includes the filter element, which includes a cylindrical shell, the filter element is arranged in the shell, and the shell includes a total oil outlet hole connected to the oil collecting hole, and a total oil inlet hole connected to the oil delivery hole.

[0014] Preferably, a spring is provided in the housing to press one of the cover plates onto the filter paper.

[0015] The beneficial effects of the present invention are: a variety of filter paper structures are designed so that the arrangement of the oil inlet and outlet holes can adapt to different oil products; a variety of filter paper materials are used to adapt to different application scenarios; the present invention also provides its related applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the principle of the filter of the utility model;

[0017] Figure 2 It is a schematic diagram of the decomposition structure of the filter;

[0018] Figure 3 Schematic diagram of filter paper according to Example 1 of the present utility model;

[0019] Figure 4 This is a schematic diagram of filter paper according to Example 2 of the present utility model;

[0020] Figure 5 This is a schematic diagram of filter paper according to the third embodiment of the present invention;

[0021] Figure 6 is a schematic diagram of the cover;

[0022] Figure 7 This is a schematic diagram of the oil inlet hole with R angle. DETAILED DESCRIPTION

[0023] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "inside", "outside", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] like Figures 1 to 7 As shown, the present invention provides a filter paper 10, which is generally circular and made of a material with a thickness of 0.005 to 0.025 mm. The specific material can be referenced: the filter paper 10 is made of oil-resistant wood pulp, or the filter paper 10 is made of non-woven fabric made of chemical fiber, or the filter paper 10 is made of thin plastic, or the filter paper 10 is made of stainless steel sheet. The above different materials can be used in different scenarios: filtering oil, filtering water, filtering corrosive liquids, etc.

[0026] The filter paper 10 is provided with a plurality of oil inlet holes 12 and a plurality of oil outlet holes 14 extending therethrough. Several rod holes 16 are provided along the edge, the center, or both of the edges and the center of the filter paper 10. The filter paper 10 is made of a waterproof and / or oil-resistant material. Rod holes 16 are typically provided at the edge of the filter paper 10. For larger filter papers 10, a rod hole 16 may also be provided at the center to strengthen the center of the filter paper 10.

[0027] In one embodiment, the oil inlet hole 12 and the oil outlet hole 14 are both square structures of the same or different sizes, and the four corners of the oil inlet hole 12 and the oil outlet hole 14 all have R corners 18 .

[0028] The oil inlet holes 12 and the oil outlet holes 14 form an M×N rectangular array and are arranged on the filter paper 10 in an interval arrangement.

[0029] Alternatively, the oil inlet holes 12 and the oil outlet holes 14 are arranged in multiple rows, the oil inlet holes 12 and the oil outlet holes 14 in each row are arranged alternately, and the oil inlet holes 12 and the oil outlet holes 14 in the upper and lower rows are arranged in a herringbone structure.

[0030] In this structure, the square oil inlet hole 12 and the oil outlet hole 14 have larger areas and are more suitable for viscous coolant. The R angle 18 can reduce the stress on the edge and prevent the filter element 28 from tearing.

[0031] In another embodiment, the oil inlet hole 12 is a circular hole; the oil outlet hole 14 is also a circular hole; the diameters of the oil inlet hole 12 and the oil outlet hole 14 are equal or unequal; in one embodiment (such as Figure 5 ), the oil inlet holes 12 and the oil outlet holes 14 are arranged in multiple rows, the oil inlet holes 12 and the oil outlet holes 14 are arranged in multiple rows, the upper and lower rows are staggered, and the oil inlet holes 12 and the oil outlet holes 14 in each row are staggered.

[0032] In this structure, the oil inlet hole 12 and the oil outlet hole 14 are smaller in area, closer in distance, and have parallel sides, so the oil flow distance is short, which is more suitable for coolants that are not too viscous. Through the above arrangement, under the same area, the oil inlet and outlet area is large and the filtration efficiency is high.

[0033] The present invention also provides a filter element 28, which includes multiple sheets of filter paper 10, all of which are aligned and stacked on top of each other, with one or more connecting rods 20 passing through all of the rod holes 16, with both ends exposed outside the filter paper 10; each end of the filter paper 10 is provided with a cover plate 22; at least one cover plate 22 is provided with a through hole 24 corresponding to the connecting rod 20, one end of the connecting rod 20 passes through the through hole 24, and the two cover plates 22 are squeezed and fixed on the filter paper 10 by a nut 26 connected by thread; one of the cover plates 22 is provided with an oil delivery hole 38 corresponding to the oil inlet hole 12, and the other cover plate 22 is provided with an oil collection hole (not shown) corresponding to the oil outlet hole 14. The connecting rod 20 can be limited by nuts 26 at both ends to limit the cover plate 22, or one can be used for limiting the position and the other can be fixed to the connecting rod 20 by welding or other means; it is necessary to ensure that one cover plate 22 is movable to squeeze the filter paper 10.

[0034] The present invention also provides a filter, which includes a filter element 28, which includes a cylindrical shell 30. The filter element 28 is arranged in the shell 30. The shell 30 includes a total oil outlet 32 ​​connected to the oil collecting hole, and a total oil inlet 34 connected to the oil delivery hole 38.

[0035] A spring 36 is disposed within the housing 30 to press one of the cover plates 22 against the filter paper 10 .

[0036] The filtration principle of this utility model is that the oil inlet holes 12 of the stacked filter papers 10 form a dirty oil chamber, and the oil outlet holes 14 form a clean oil chamber. Dirty oil enters the dirty oil chamber through the oil delivery hole 38. There, the dirty oil is subjected to pressure from the oil delivery pump. Dirty oil passes through the gap between two adjacent filter papers 10 and enters the clean oil chamber, while debris is blocked and retained in the oil inlet hole 12, thus achieving filtration. The filtered oil is then discharged through the oil collection hole and the main oil outlet hole 32. A spring 36 compresses the stacked filter papers 10, minimizing the gap between adjacent filter papers 10 and ensuring effective filtration. The more detailed principle is not explained here, as it has been fully described in the applicant's prior application and constitutes prior art.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0038] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A filter paper made of a material having a thickness of 0.005 to 0.025 mm, characterized in that: The filter paper is provided with a plurality of through oil inlet holes and a plurality of through oil outlet holes, and a plurality of through rod holes are provided on the edge or middle part or on the edge and middle part of the filter paper. The filter paper is made of waterproof and / or oil-proof material.

2. The filter paper according to claim 1, wherein: The filter paper is made of wood pulp, or is made of non-woven fabric made of chemical fiber, or is made of plastic, or is made of stainless steel sheet.

3. The filter paper according to claim 1, wherein: The oil inlet and outlet holes are both square structures of the same or different sizes, and the four corners of the oil inlet and outlet holes have R angles.

4. The filter paper according to claim 3, characterized in that: The oil inlet holes and the oil outlet holes form an M×N rectangular array and are arranged on the filter paper in an interval arrangement.

5. The filter paper according to claim 3, characterized in that: The oil inlet holes and the oil outlet holes are arranged in multiple rows, the oil inlet holes and the oil outlet holes in each row are arranged in a staggered manner, and the oil inlet holes and the oil outlet holes in the upper and lower rows are arranged in a herringbone structure.

6. The filter paper according to claim 1, wherein: The oil inlet holes are all circular holes; the oil outlet holes are all circular holes; the diameters of the oil inlet holes and the oil outlet holes are equal or unequal; the oil inlet holes and the oil outlet holes are arranged in multiple rows on the filter paper, and the oil inlet holes and the oil outlet holes in each row are staggered.

7. The filter paper according to claim 6, characterized in that: The oil inlet holes and the oil outlet holes are arranged in multiple rows, with the upper and lower rows staggered, and the oil inlet holes and the oil outlet holes in each row are staggered.

8. A filter element comprising a plurality of filter papers according to any one of claims 1 to 7, characterized in that: All the filter papers are aligned and stacked on each other, and one or more connecting rods pass through all the rod holes, with both ends exposed outside the filter paper; a cover plate is provided at each end of all the filter papers; at least one of the cover plates is provided with a through hole corresponding to the connecting rod, one end of the connecting rod passes through the through hole, and the two cover plates are squeezed and fixed on the filter paper by a threaded nut; one of the cover plates is provided with a through oil delivery hole corresponding to the oil inlet hole, and the other cover plate is provided with a through oil collecting hole corresponding to the oil outlet hole.

9. A filter comprising the filter element according to claim 8, characterized in that: It comprises a cylindrical shell, the filter element is arranged in the shell, and the shell comprises a total oil outlet hole connected to the oil collecting hole, and a total oil inlet hole connected to the oil delivery hole.

10. The filter according to claim 9, characterized in that: A spring is provided in the housing to press one of the cover plates onto the filter paper.

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