Magnetic oil absorption filter

Abstract

The utility model belongs to the field of filters, and relates to a magnetic oil absorption filter, which comprises a filter body, a filter core and a magnetic oil absorption device, one end of the filter cavity is connected with an oil inlet top cover, and the other end of the filter cavity is connected with a bottom cover; an oil inlet channel is formed in the oil inlet top cover, an oil outlet is formed in the side edge, close to the bottom cover, of the filter body, and the oil outlet is communicated with the filter cavity; the filter element is arranged in the filter cavity; and the magnetic unit is arranged in the filtering cavity. After the structure is adopted, the oil filter has the beneficial effects that the magnetic steel is arranged, so that when oil enters the filter through the oil inlet channel, a part of metal impurities such as scrap iron and iron powder are captured by a magnetic field generated by the magnetic steel and are adsorbed on the magnetic steel, and the other part of metal impurities are adsorbed by the filter layer of the filter element; clean oil enters the system through the filter element, so that the filtering efficiency is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, in particular to a magnetic oil absorption filter. Background Art

[0002] With the rapid development of industrialization, the demand for the use of hydraulic systems in various industries is constantly increasing. However, when it comes to hydraulic systems, it is inevitable to be inseparable from the filtration system. The use of hydraulic systems has driven the rapid development of filters and filter elements. The oil suction filter is a coarse filter, which is generally installed at the oil suction port of the hydraulic pump to protect the hydraulic oil pump and other hydraulic components to avoid the inhalation of larger particulate pollutants; the oil suction filter has a simple structure, large oil flow capacity and low resistance; its working process is simple and clear, and can be widely used in many fields.

[0003] The impurities in the oil are mainly metal powders such as iron filings and copper filings. In normal filtration, metal powders will be adsorbed on the filter medium. When the filter medium is saturated with adsorption, it will gather at the filter element. When the pressure difference reaches the bypass valve opening pressure difference, the bypass valve opens and impurities will enter the hydraulic system, thereby increasing the wear of the hydraulic system and reducing its service life. Therefore, it is necessary to make improvements. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a magnetic oil absorption filter, which can effectively absorb metal powder in the oil, reduce the clogging of the filter element, and improve the filtering quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] As one aspect of the utility model, a magnetic oil absorption filter is provided, which comprises: a filter body, the filter body having a filter cavity connected at both ends; one end of the filter cavity is connected to an oil inlet top cover, and the other end of the filter cavity is connected to a bottom cover; an oil inlet channel is provided on the oil inlet top cover, and an oil outlet is provided on the side of the filter body close to the bottom cover, and the oil outlet is connected to the filter cavity;

[0007] A filter element is disposed in the filter cavity; the oil inlet end of the filter element is detachably connected to the oil inlet top cover, and the other end of the filter element is detachably connected to the bottom cover;

[0008] The magnetic unit is arranged in the filter cavity.

[0009] Optionally, the magnetic unit includes a bracket connected to the bottom cover, and the bracket is located in the filter cavity; and one or more magnetic suction parts are connected to the bracket.

[0010] Optionally, the magnetic attraction member is connected to the bracket via a screw and a nut.

[0011] Optionally, a bypass valve is further included, wherein the bypass valve is connected to the bottom cover and is located in the filter chamber.

[0012] Optionally, the bypass valve includes a bypass valve body, a bypass valve through hole is provided on the bypass valve body, and the bypass valve through hole is connected to the filter chamber; a valve stem is movably inserted through the bypass valve through hole, and an elastic member is sleeved on the valve stem; under normal conditions, the valve stem is acted upon by the elastic member, and the valve cap of the valve stem blocks the bypass valve through hole.

[0013] Optionally, an oil drain channel is provided on the bottom cover, and an oil drain plug is provided on the oil drain channel.

[0014] Optionally, a filter element sealing ring is provided between the oil inlet end of the filter element and the connection between the oil inlet top cover.

[0015] Optionally, a first sealing ring is provided between the connection between the oil inlet top cover and the filter body.

[0016] Optionally, a second sealing ring is provided between the connection between the bottom cover and the filter body.

[0017] Optionally, a connecting piece is connected to the filter body, and a mounting hole is provided on the connecting piece.

[0018] The beneficial effects of the magnetic oil absorption filter of the utility model are specifically embodied in that: when the oil enters the filter from the oil inlet channel through the magnetic steel provided with the magnetic attraction part, since the oil carries a lot of metal impurities such as iron filings and iron powder, part of them will be captured by the magnetic field generated by the magnetic steel, and thus adsorbed on the magnetic steel, and the other part of the metal impurities will be adsorbed by the filter layer of the filter element, while the clean oil enters the system through the filter element, thereby improving the filtering efficiency and service life; effectively solving the problem of excessive metal impurities in the hydraulic system, reducing damage and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a structural schematic diagram of the magnetic oil absorption filter of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] A magnetic oil absorption filter according to an embodiment of the present application, such as Figure 1 As shown, it comprises: a filter body 1, the filter body 1 having a filter cavity 11 connected at both ends; one end of the filter cavity 11 is connected to an oil inlet top cover 2, and the other end of the filter cavity 11 is connected to a bottom cover 3; an oil inlet channel 21 is provided on the oil inlet top cover 2, and an oil outlet 12 is provided on the side of the filter body 1 close to the bottom cover 3, and the oil outlet 12 is connected to the filter cavity 11; the oil inlet top cover 2 and the bottom cover 3 seal the filter cavity 11 into a cavity;

[0023] The filter element 5 is arranged in the filter cavity 11, and the filter element 5 filters the oil. The filter material of the filter element 5 is glass fiber or metal mesh, which has the advantages of high filtering accuracy, large oil passing capacity, small original pressure loss, large dirt holding capacity, etc., and meets ISO standards; it should be noted that the filter element 5 has an oil inlet end and a plurality of oil outlet holes, which is a prior art and will not be repeated here;

[0024] The magnetic unit 6 is arranged in the filter chamber 11, and effectively absorbs the iron powder and iron filings in the oil, thereby reducing the clogging of the filter element and improving the filtering quality.

[0025] As a further illustration, in this embodiment, Figure 1 As shown, the oil inlet end of the filter element 5 is detachably connected to the oil inlet top cover 2. When the filter element 5 needs to be replaced, it is only necessary to remove the oil inlet top cover 2 to remove the filter element 5 from the filter body 1, so as to facilitate the replacement and maintenance of the filter element 5; the oil inlet channel 21 is connected to the oil inlet end of the filter element 5, and the oil enters the filter element 5 from the oil inlet channel 21 and flows out from the oil outlet 12 after being filtered by the filter element 5; the other end of the filter element 5 is detachably connected to the bottom cover 3, and the filter element 5 is located in the filter cavity 11 through the oil inlet top cover 2 and the bottom cover 3 to filter the oil.

[0026] In one embodiment, if Figure 1 As shown, a filter element sealing ring 7 is provided between the oil inlet end of the filter element 5 and the connection between the oil inlet top cover 2 to enhance the sealing between the oil inlet end of the filter element 5 and the oil inlet top cover 2 .

[0027] In one embodiment, if Figure 1As shown, a first sealing ring 8 is provided between the connection between the oil inlet cover 2 and the filter body 1 to enhance the sealing between the oil inlet cover 2 and the filter body 1 .

[0028] In one embodiment, if Figure 1 As shown, a second sealing ring 9 is provided between the connection between the bottom cover 3 and the filter body 1 to enhance the sealing between the bottom cover 3 and the filter body 1 .

[0029] As a further illustration, in this embodiment, Figure 1 As shown, an oil drain channel 31 is provided on the bottom cover 3 , and an oil drain plug 4 is provided on the oil drain channel 31 for regularly draining oil and preventing the filter element 5 from being blocked.

[0030] In one embodiment, if Figure 1 As shown, it also includes a bypass valve 10, which is connected to the bottom cover 3 and is located in the filter chamber 11. In order to facilitate the connection, the other end of the filter element 5 is detachably connected to the bypass valve 10. At this time, the other end of the filter element 5 is not connected to the bottom cover 3, and the integrity is good.

[0031] In one embodiment, if Figure 1 As shown, the bypass valve 10 includes a bypass valve body 101, on which a bypass valve through hole 102 is opened, and the bypass valve through hole 102 is communicated with the filter chamber 11 and the oil discharge channel 31; a valve stem 103 is movably penetrated through the bypass valve through hole 102, and an elastic member 104 is sleeved on the valve stem 103, and the elastic member 104 is a spring; under normal conditions, the valve stem 103 is blocked by the valve cap of the valve stem 103 under the action of the elastic member 104, when the cold oil is started, or when the pressure difference between the filter element before and after the filter is too large due to the low system oil temperature and other factors that make the filter element unable to work normally, and when the filter element is blocked by contaminants, the elastic member 104 is compressed, so that the valve cap of the valve stem 103 will automatically open to ensure the normal operation of the filter element and the system.

[0032] As a further illustration, in this embodiment, Figure 1 As shown, the magnetic unit 6 includes a bracket 61 connected to the bottom cover 3 or the bypass valve body 101, and the bracket 61 is located in the filter chamber 11; the bracket 61 is connected to one or more magnetic components 64 through a screw 62 and a nut 63, and the magnetic components 64 are magnets or magnetic steel; the magnetic components 64 are close to the oil outlet 12, and the iron powder and iron filings in the oil are effectively adsorbed, thereby reducing the clogging of the filter element and improving the filtration quality; as an example, the magnetic component 64 is located in the middle of the filter element 5, and the filter element 5 is provided with a giving way portion for the magnetic component 64 to give way.

[0033] In one embodiment, if Figure 1As shown, the filter body 1 is connected with a connecting piece 13, and the connecting piece 13 is provided with a mounting hole 14 for convenient installation or hoisting, so that the filter can be easily installed or hoisted.

[0034] In this embodiment, the oil directly enters the oil inlet chamber of the filter element 5 from the oil inlet channel 21. The oil does not need to be converted in other directions, thereby reducing the flow resistance. There is no need to add corresponding conversion and connecting components between the oil inlet channel 21 and the oil outlet 12. The oil is directly filtered through the filter element 5, which simplifies the overall structure of the filter; thereby simplifying the system piping, reducing the difficulty of installation, and thus reducing the cost of components and installation costs.

[0035] In this embodiment, a magnet is provided. When the oil enters the filter from the oil inlet channel, a part of the metal impurities such as iron filings and iron powder carried in the oil will be captured by the magnetic field generated by the magnet and adsorbed on the magnet, while another part of the metal impurities will be adsorbed by the filter layer of the filter element, while the clean oil enters the system through the filter element, thereby improving the filtration efficiency and service life. This design effectively solves the problem of excessive metal impurities in the hydraulic system, reduces damage and saves costs.

[0036] 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.

[0037] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0038] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0039] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0040] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A magnetic oil absorption filter, characterized in that: It includes: A filter body, wherein the filter body has a filter cavity connected at both ends; one end of the filter cavity is connected to an oil inlet top cover, and the other end of the filter cavity is connected to a bottom cover; an oil inlet channel is provided on the oil inlet top cover, and an oil outlet is provided on the side of the filter body close to the bottom cover, and the oil outlet is connected to the filter cavity; A filter element is disposed in the filter cavity; the oil inlet end of the filter element is detachably connected to the oil inlet top cover, and the other end of the filter element is detachably connected to the bottom cover; The magnetic unit is arranged in the filter cavity.

2. The magnetic oil absorption filter according to claim 1, characterized in that: The magnetic unit comprises a bracket connected to the bottom cover, and the bracket is located in the filter cavity; and one or more magnetic suction parts are connected to the bracket.

3. The magnetic oil absorption filter according to claim 2, characterized in that: The magnetic attraction piece is connected to the bracket via a screw rod and a nut.

4. The magnetic oil absorption filter according to claim 1, characterized in that: It also includes a bypass valve, which is connected to the bottom cover and is located in the filter chamber.

5. The magnetic oil absorption filter according to claim 4, characterized in that: The bypass valve comprises a bypass valve body, a bypass valve through hole is provided on the bypass valve body, and the bypass valve through hole is communicated with the filter chamber; a valve stem is movably provided through the bypass valve through hole, and an elastic member is sleeved on the valve stem; under normal conditions, the valve stem is acted upon by the elastic member, and the valve cap of the valve stem blocks the bypass valve through hole.

6. The magnetic oil absorption filter according to claim 5, characterized in that: An oil drain passage is provided on the bottom cover, and an oil drain plug is provided on the oil drain passage.

7. The magnetic oil absorption filter according to claim 1, characterized in that: A filter element sealing ring is arranged between the oil inlet end of the filter element and the connection between the oil inlet top cover.

8. The magnetic oil absorption filter according to claim 1, characterized in that: A first sealing ring is provided between the connection between the oil inlet top cover and the filter body.

9. The magnetic oil absorption filter according to claim 1, characterized in that: A second sealing ring is provided between the connection between the bottom cover and the filter body.

10. The magnetic oil absorption filter according to claim 1, characterized in that: The filter body is connected with a connecting piece, and the connecting piece is provided with a mounting hole.

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