Filtering device

Abstract

The utility model provides a filter device which comprises a filter cartridge, a filter element, a filter element, a filter element and a filter element, the filter cartridge is provided with an opening end and a blocking end which are oppositely arranged, the opening end is provided with an opening, the filter cartridge is provided with a filter cavity communicated with the opening and comprises a filter screen section, and oil is discharged out of the filter cavity through the filter screen section; the framework is arranged in the filtering cavity in a penetrating manner; and the magnetic attraction part is located in the filtering cavity and arranged on the framework. According to the scheme, the problems that in the prior art, a filter cartridge is limited in interception effect, tiny scrap iron suspended in oil liquid possibly and easily passes through the filter cartridge and continues to circulate in an oil liquid system, element abrasion is intensified, the service life of elements is shortened, and the maintenance cost of equipment is increased can be solved.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and more specifically, to a filtration device. Background Technology

[0002] Hydraulic systems are a critical component of engineering machinery, and their stability and efficiency directly impact the overall performance, safety, and operating costs of the equipment. Hydraulic systems use pumps to deliver hydraulic fluid to various actuators and control valves, enabling the driving and precise control of mechanical movements. However, during prolonged operation, wear and tear can accumulate in the pumps, valves, pipelines, and other metal components within the hydraulic system, producing metal impurities such as iron filings and oxides. These impurities not only reduce the cleanliness of the hydraulic fluid but also accelerate the wear of components within the system, potentially leading to a decline in the overall performance of the hydraulic system.

[0003] To ensure the normal operation of the hydraulic system and maintain the cleanliness of the hydraulic fluid, a filter cartridge is usually installed in the hydraulic system. The filter cartridge purifies the hydraulic fluid by intercepting solid particles in the fluid.

[0004] However, existing filter cartridges have limited interception effectiveness. Tiny iron filings suspended in the oil can easily pass through the filter cartridge and continue to circulate in the system, exacerbating component wear, reducing component lifespan, and increasing equipment maintenance costs. Utility Model Content

[0005] This invention provides a filtration device to address the problem that existing filter cartridges have limited interception effects, allowing extremely small iron filings suspended in the oil to easily pass through and continue circulating in the oil system, thus aggravating component wear, reducing component lifespan, and increasing equipment maintenance costs.

[0006] This utility model provides a filtration device, which includes: a filter cylinder having an open end and a sealed end arranged opposite to each other, the open end having an opening, the filter cylinder having a filter cavity communicating with the opening, the filter cylinder including a filter screen segment, through which oil is discharged from the filter cavity; a frame passing through the filter cavity; and a magnetic suction part located in the filter cavity and disposed on the frame.

[0007] Furthermore, the frame extends along the length of the filter cartridge, and multiple magnetic suction parts are provided, which are spaced apart along the length of the frame.

[0008] Furthermore, the filtration device also includes: a plugging part, which is provided at the opening to block the opening, and a first oil inlet is provided on the plugging part, which is connected to the filtration chamber.

[0009] Further, the skeleton is arranged on the blocking part, the skeleton is arranged with oil liquid channels and oil liquid outlets which are communicated with each other, the oil liquid channels extend along the length direction of the skeleton, the oil liquid outlets are communicated with the side of the oil liquid channels, the first oil liquid inlet, the oil liquid channels and the oil liquid outlets are communicated in sequence, the oil liquid outlets are arranged with a plurality of, the magnetic attraction part and the oil liquid outlets are alternately distributed along the length direction of the skeleton.

[0010] The oil liquid channels extend along the length direction of the skeleton, which provides a continuous path for the oil liquid from the first oil liquid inlet to the filtering cavity.

[0011] Further, the blocking part is arranged with a second oil liquid inlet, the second oil liquid inlet is communicated with the filtering cavity, and the flow area of the second oil liquid inlet is smaller than that of the first oil liquid inlet.

[0012] Further, the blocking part is arranged integrally with the skeleton.

[0013] Further, the blocking part is arranged with a second oil liquid inlet, the second oil liquid inlet is communicated with the filtering cavity, and the flow area of the second oil liquid inlet is smaller than that of the first oil liquid inlet.

[0014] Further, the filtering cylinder further comprises a mounting section, the mounting section is coaxial with the filtering mesh section and sequentially communicated, the mounting section is arranged with an opening, the blocking part is arranged in the opening and is magnetically attracted with the mounting section.

[0015] Further, the magnetic attraction part is detachably connected with the skeleton.

[0016] Further, the magnetic attraction part is arranged on the skeleton, the skeleton is arranged with a locking structure, the locking structure has an unlocking state and a locking state, when the locking structure is in the locking state, the locking structure fixes the magnetic attraction part, and when the locking structure is in the unlocking state, the locking structure releases the fixation of the magnetic attraction part.

[0017] According to the technical scheme of the utility model, the combination of the magnetic attraction part and the filtering mesh section can make the impurities including iron filings be intercepted in the filtering cylinder, the purified oil liquid continues to circulate in the hydraulic system, and the abrasion of the impurities to the elements in the hydraulic system is reduced. The filtering cylinder is designed with a relatively arranged opening end and blocking end, the opening end is arranged with an opening to allow the oil liquid to enter the filtering cylinder. When the oil liquid in the hydraulic system enters the filtering cavity through the opening of the filtering cylinder, the iron filings in the oil liquid are adsorbed by the magnetic attraction part. The oil liquid with the adsorbed iron filings continues to pass through the filtering mesh section, at this time, the filtering mesh section can further filter other non-iron impurities in the oil liquid, so as to ensure that the content of the iron filings and the solid particles in the oil liquid are reduced after the oil liquid is discharged from the filtering cylinder. The purified oil liquid enters the hydraulic system again for circulation, and the intercepted impurities are left in the filtering cylinder.

[0018] The filtering device of the scheme is applied in a hydraulic system, can reduce the possibility of iron filings and other impurities entering into the circulating hydraulic system, reduce the wear of the impurities on the hydraulic components, and prolong the service life of the hydraulic system. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application, serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A cross-sectional structure schematic view of a first perspective of the filtering device provided by the present application is shown;

[0021] Figure 2 A structure schematic view of a second perspective of the filtering device provided by the present application is shown.

[0022] Among them, the above-mentioned drawings include the following reference signs:

[0023] 10, filter cartridge;

[0024] 101, open end; 1011, opening; 102, plugging end; 103, filtering cavity;

[0025] 11, filter screen section;

[0026] 12, mounting section;

[0027] 20, skeleton;

[0028] 201, oil passage; 202, oil outlet;

[0029] 30, magnetic attraction part;

[0030] 40, plugging part;

[0031] 401, first oil inlet; 402, second oil inlet;

[0032] 50, locking structure;

[0033] 51, first locking piece;

[0034] 52, second locking piece. DETAILED DESCRIPTION

[0035] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative, and is by no means intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0036] As shown in Figure 1 and Figure 2 The present application provides a filter device, which comprises a filter cartridge 10, a framework 20 and a magnetic attraction part 30. The filter cartridge 10 has an open end 101 and a blocking end 102 arranged oppositely, the open end 101 has an opening 1011, the filter cartridge 10 has a filter cavity 103 communicating with the opening 1011, the filter cartridge 10 comprises a filter mesh segment 11, and oil is discharged from the filter cavity 103 through the filter mesh segment 11; the framework 20 is arranged in the filter cavity 103; the magnetic attraction part 30 is located in the filter cavity 103, and the magnetic attraction part 30 is arranged on the framework 20.

[0037] According to the technical scheme of the present application, the combination of the magnetic attraction part 30 and the filter mesh segment 11 can trap impurities including iron filings in the filter cartridge 10, and the purified oil continues to circulate in the hydraulic system, reducing the wear of the elements in the hydraulic system caused by impurities. The filter cartridge 10 is designed with an open end 101 and a blocking end 102 arranged oppositely, wherein the open end 101 has an opening 1011 to allow oil to enter the filter cartridge 10. When the oil in the hydraulic system enters the filter cavity 103 through the opening 1011 of the filter cartridge 10, the iron filings in the oil are attracted by the magnetic attraction part 30. The oil with iron filings continues to pass through the filter mesh segment 11, and the filter mesh segment 11 can further filter out other non-ferrous impurities in the oil, ensuring that the content of iron filings and solid particles in the oil is reduced after the oil is discharged from the filter cartridge 10. The purified oil reenters the hydraulic system for circulation, and the trapped impurities remain in the filter cartridge 10.

[0038] The filter device of the present application is applied in the hydraulic system, which can reduce the possibility of iron filings and other impurities entering the hydraulic system for circulation, reduce the wear of the hydraulic elements caused by impurities, and prolong the service life of the hydraulic system.

[0039] In the embodiment of the present application, the filter cartridge 10 is a cylindrical structure with an open structure at one end, and the filter mesh segment 11 is a cylindrical structure surrounded by a filter mesh, that is, the side of the filter cartridge 10 is a cylindrical filter mesh segment 11, and the oil is discharged from the filter cartridge 10 through the filter mesh segment 11.

[0040] In the embodiment of the present scheme, the skeleton 20 extends along the length direction of the filter cartridge 10, and the plurality of magnetic attraction parts 30 are arranged along the length direction of the skeleton 20. The arrangement of the plurality of magnetic attraction parts 30 increases the contact opportunities of the iron filings in the oil with the magnetic attraction parts 30, and can further improve the adsorption amount of the iron filings in the oil in the filter cartridge 10 and improve the adsorption effect of the iron filings.

[0041] Further, the filter device further comprises a blocking part 40 arranged at the opening 1011 to block the opening 1011, and the first oil inlet 401 is arranged on the blocking part 40 and communicates with the filter cavity 103.

[0042] In the embodiment of the present scheme, the oil enters the filter cartridge 10 through the opening 1011, and the blocking part 40 with the first oil inlet 401 having a suitable pore size can be selected according to the flow of the oil to optimize the inflow speed and flow of the oil.

[0043] In the embodiment of the present scheme, the skeleton 20 is arranged on the blocking part 40, and the oil passage 201 and the oil outlet 202 are arranged on the skeleton 20 and communicate with each other, the oil passage 201 extends along the length direction of the skeleton 20, the oil outlet 202 communicates with the side of the oil passage 201, the first oil inlet 401, the oil passage 201 and the oil outlet 202 communicate in sequence, and the plurality of oil outlets 202 are arranged along the length direction of the skeleton 20. The oil passage 201 extends along the length direction of the skeleton 20 to provide a continuous path for the oil from the first oil inlet 401 to the filter cavity 103. This design ensures that the oil can smoothly and uniformly enter the filter cavity, avoids the local accumulation or turbulent flow phenomenon caused by the unsmooth oil path, and is beneficial to improve the overall filtering efficiency and stability of the filter device.

[0044] Further, the magnetic attraction parts 30 and the oil outlets 202 are alternately arranged along the length direction of the skeleton 20. In this way, when the oil in the oil passage 201 flows into the filter cartridge 10 through the oil outlet 202, the oil passes through a magnetic attraction part 30 at each oil outlet 202, and the magnetic attraction part 30 adsorbs the oil at the corresponding position, thereby improving the adsorption rate of the iron filings in the oil and improving the filtering effect of the device.

[0045] Further, the second oil inlet 402 is arranged on the blocking part 40 and communicates with the filter cavity 103, and the flow area of the second oil inlet 402 is smaller than that of the first oil inlet 401.

[0046] In the large flow system, the pressure and flow rate of the oil liquid are usually high. By setting the second oil liquid inlet 402 with a small flow area, the second oil liquid inlet 402 can be used as a backup or auxiliary inlet to adjust the oil liquid flow when the oil liquid flow exceeds the processing capacity of the first oil liquid inlet 401, so as to ensure that the filtering device can stably process the oil liquid flow exceeding the expectation, and avoid the decline of the filtering effect caused by the excessive flow.

[0047] The specific number of the second oil liquid inlet 402 is not limited in the scheme.

[0048] In the embodiment of the scheme, the second oil liquid inlet 402 is provided with a plurality of second oil liquid inlets 402, and the plurality of second oil liquid inlets 402 are distributed along the circumference of the first oil liquid inlet 401. The setting of the plurality of second oil liquid inlets 402 can more evenly distribute the oil liquid flow, reduce or avoid the problem that the oil liquid flow rate at a single inlet is too fast, the internal partial pressure difference of the filter cartridge 10 is increased, and the oil liquid distribution is uneven, and the uniform distribution of the oil liquid in the filter cartridge 10 is beneficial to the more uniform adsorption of the magnetic attraction part 30 to the iron filings impurities, thereby improving the filtering effect.

[0049] The specific connection mode of the framework 20 and the plugging part 40 is not limited in the scheme.

[0050] In some embodiments of the scheme, the framework 20 and the plugging part 40 are provided separately. The framework 20 and the plugging part 40 can be connected by a fastener, connected by a clamping, or connected by welding.

[0051] In the embodiment of the scheme, the plugging part 40 and the framework 20 are integrally formed. In this way, the convenience of processing the plugging part 40 and the framework 20 can be improved.

[0052] In the scheme, the plugging part 40 and the filter cartridge 10 are detachably connected. In this way, the cleaning of the magnetic attraction part 30 can be facilitated.

[0053] The specific connection mode of the plugging part 40 and the filter cartridge 10 is not limited in the scheme.

[0054] In some embodiments of the scheme, the plugging part 40 and the filter cartridge 10 are detachably connected by a fastener.

[0055] In some embodiments of the scheme, the plugging part 40 and the filter cartridge 10 are threadedly connected.

[0056] In some embodiments of the scheme, the plugging part 40 and the filter cartridge 10 are clamped.

[0057] In the embodiment of the scheme, the plugging part 40 and the filter cartridge 10 are magnetically attracted and matched.

[0058] Further, the filter cartridge 10 further comprises a mounting section 12 coaxial with the filter screen section 11 and sequentially communicated, the mounting section 12 is provided with an opening 1011, the blocking part 40 is arranged in the opening 1011 and is magnetically attracted to the mounting section 12. The mounting section 12 is arranged, which enhances the stability of the connection between the blocking part 40 and the filter cartridge 10.

[0059] In the embodiment of the present scheme, a stepped structure is arranged in the mounting section 12, and the blocking part 40 is a circular plate structure, and the end face of one end of the blocking part 40 connected with the framework 20 is in abutting cooperation with the stepped structure.

[0060] Further, the magnetic attraction part 30 is detachably connected with the framework 20. In this way, the cleaning and replacement of the magnetic attraction part 30 can be facilitated.

[0061] The specific shape of the magnetic attraction part 30 is not limited in the present scheme.

[0062] In the embodiment of the present scheme, the framework 20 is coaxially arranged with the filter cartridge 10, and the magnetic attraction part 30 is a circular ring structure. In this way, the uniformity of the magnetic attraction of the magnetic attraction part 30 to the iron filings can be increased, and the filtering effect of the device can be improved.

[0063] Specifically, the magnetic attraction part 30 is sleeved on the framework 20, the framework 20 is provided with a locking structure 50, the locking structure 50 has an unlocking state and a locking state, when the locking structure 50 is in the locking state, the locking structure 50 fixes the magnetic attraction part 30; when the locking structure 50 is in the unlocking state, the locking structure 50 releases the fixation of the magnetic attraction part 30. In this way, the dismounting operation of the magnetic attraction part 30 and the framework 20 can be facilitated.

[0064] Further, the locking structure 50 comprises a first locking piece 51 and a second locking piece 52, the first locking piece 51 and the second locking piece 52 are arranged on the framework 20, and the first locking piece 51 and the second locking piece 52 are spaced apart along the axial direction of the framework 20.

[0065] The first locking piece 51 and the second locking piece 52 can be folded towards the direction of approaching or moving away from the magnetic attraction part 30 relative to the framework 20. When the locking structure 50 is in the locking state, the first locking piece 51 and the second locking piece 52 are perpendicular to the axial direction of the magnetic attraction part 30, and the first locking piece 51 and the second locking piece 52 are respectively in abutting cooperation with the two end faces of the axial direction of the magnetic attraction part 30. When the locking structure 50 is in the unlocking state, the first locking piece 51 and the second locking piece 52 are folded towards the direction of moving away from the magnetic attraction part 30, and the first locking piece 51 and the second locking piece 52 are separated from the magnetic attraction part 30. The above arrangement has the advantages of simple structure and facilitating the limitation of the position of the magnetic attraction part 30 in the axial direction of the framework 20.

[0066] In the embodiments of the present scheme, the first locking piece 51 is provided in plurality, and the plurality of first locking pieces 51 are distributed on the framework 20 along the circumference of the corresponding magnetic attraction part 30 at intervals; the second locking piece 52 is provided in plurality, and the plurality of second locking pieces 52 are distributed on the framework 20 along the circumference of the corresponding magnetic attraction part 30 at intervals. In this way, the limiting effect of the first locking piece 51 and the second locking piece 52 on the magnetic attraction part 30 can be improved.

[0067] It is to 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, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise, and it should be further understood that the terms "comprise" and / or "include" as used herein specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0068] Unless specifically stated otherwise, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments are not meant to limit the scope of the present application. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion. The techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0069] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0070] For purposes of the description hereinafter, spatial relative terms, such as "above", "below", "upper", "lower", and the like, can be used to describe the relative position of one element or feature to another as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. Well, the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "up" other elements or features would then be oriented "below" or "down" the other elements or features. Thus, the exemplary term "above" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0071] In addition, it needs to be explained that the use of "first", "second" and the like words to limit the parts, only for the convenience of the corresponding parts for the distinction, such as no other declaration, the above words have no special meaning, therefore can not be understood as the restriction of the scope of protection of the utility model.

[0072] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter device, characterized in that The filter device comprises: a filter cartridge (10) having an open end (101) and a closed end (102) arranged oppositely, the open end (101) having an opening (1011), the filter cartridge (10) having a filter cavity (103) in communication with the opening (1011), the filter cartridge (10) comprising a filter mesh segment (11) through which oil liquid is discharged from the filter cavity (103); a skeleton (20) arranged in the filter cavity (103); a magnetic attraction part (30) arranged in the filter cavity (103), the magnetic attraction part (30) being arranged on the skeleton (20).

2. The filter device of claim 1, wherein, The skeleton (20) extends along the length direction of the filter cartridge (10), and the magnetic attraction part (30) is arranged in plurality, and the plurality of magnetic attraction parts (30) are distributed along the length direction of the skeleton (20).

3. The filter device of claim 2, wherein, The filter device further comprises: a closing part (40) arranged at the opening (1011) to close the opening (1011), the closing part (40) being provided with a first oil liquid inlet (401) in communication with the filter cavity (103).

4. The filter device of claim 3, wherein, The skeleton (20) is arranged on the closing part (40), and the skeleton (20) is provided with an oil liquid channel (201) and an oil liquid outlet (202) in communication with each other, the oil liquid channel (201) extending along the length direction of the skeleton (20), the oil liquid outlet (202) being in communication with the side of the oil liquid channel (201), the first oil liquid inlet (401), the oil liquid channel (201) and the oil liquid outlet (202) being in communication in sequence, the oil liquid outlet (202) being arranged in plurality, and the magnetic attraction part (30) and the oil liquid outlet (202) being alternately distributed along the length direction of the skeleton (20).

5. The filter device of claim 4, wherein, The closing part (40) is further provided with a second oil liquid inlet (402) in communication with the filter cavity (103), and the flow area of the second oil liquid inlet (402) is smaller than that of the first oil liquid inlet (401).

6. The filter device of claim 4, wherein, The closing part (40) is integrally formed with the skeleton (20).

7. The filter device of claim 4, wherein, The closing part (40) is magnetically attracted to the filter cartridge (10).

8. The filter device of claim 7, wherein, The filter cartridge (10) further comprises a mounting segment (12) coaxial with and sequentially communicating with the filter mesh segment (11), the mounting segment (12) being provided with the opening (1011), the closing part (40) being arranged in the opening (1011) and magnetically attracted to the mounting segment (12).

9. The filter device of claim 1, wherein, The magnetic attraction part (30) is detachably connected to the skeleton (20).

10. The filter device of claim 9, wherein, The magnetic attraction part (30) is sleeved on the framework (20), the framework (20) is provided with a locking structure (50), the locking structure (50) has an unlocking state and a locking state, when the locking structure (50) is in the locking state, the locking structure (50) fixes the magnetic attraction part (30), when the locking structure (50) is in the unlocking state, the locking structure (50) releases the fixing of the magnetic attraction part (30).

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