CN217029505U - Magnetic filter for hydraulic system - Google Patents

Abstract

The utility model discloses a magnetic filter for a hydraulic system, which comprises a filter base, a cylinder body, an upper cover, a magnetic filter element, a visual pressure difference alarm and a pressure gauge, wherein the cylinder body is arranged on the filter base; the upper cover is provided with a liquid passing channel for communicating a liquid inlet cavity of the magnetic filter element with a first port of the visual pressure difference alarm, a second port of the visual pressure difference alarm is communicated with a liquid outlet cavity, and a working end of the pressure gauge is positioned in the liquid inlet cavity; a magnetic filter element is arranged in the cavity of the cylinder body. When the magnetic filter is disassembled by replacing the magnetic filter element, the magnetic filter element can automatically scrape off collected iron impurities and other impurities, the cleaning work of personnel is reduced, and the work efficiency and the use quality of the filter are improved.

Description

Magnetic filter for hydraulic system

Technical Field

The utility model relates to the technical field of filters, in particular to a magnetic filter for a hydraulic system.

Background

The filter is an indispensable device on a medium conveying pipeline and is usually arranged at the inlet end of a pressure reducing valve, a pressure relief valve, a constant water level valve and other equipment of a squaring filter. After the filter has a filter cylinder with certain filtering precision, impurities are blocked, when the filter needs to be cleaned, the detachable filter cylinder is taken out and is installed again after treatment, and therefore the filter is very convenient to use and maintain.

In some media transport technologies, especially hydraulic applications, the liquid media is contaminated with a large amount of impurities (including iron impurities that wear out of the equipment), and the filter is required to filter and remove the impurities from the liquid media. However, in the filtering operation, a magnet is basically clamped in the filter paper of the filtering layer of a general filter to remove iron from the liquid passing through the filtering layer, but this cannot effectively remove iron impurities, when the iron impurities are accumulated on the filtering layer too much, the iron impurities farthest away from the magnet lose the constraint and are separated from the filtering layer, and the smaller iron impurities pass through the filtering layer and return to the liquid medium again, which affects the normal use of the hydraulic system and shortens the service life of the hydraulic system.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a magnetic filter for a hydraulic system, which aims to solve the problems that the common filter cannot effectively remove iron impurities in a liquid medium, the iron impurities can pass through a filter layer and return to the liquid medium again, the normal use of the hydraulic system is influenced, and the service life of the hydraulic system is shortened.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a magnetic filter for a hydraulic system comprises a filter base, a cylinder body, an upper cover, a magnetic filter element, a visual pressure difference alarm and a pressure gauge, wherein the cylinder body is arranged on the filter base; wherein, the first and the second end of the pipe are connected with each other,

the upper cover is provided with a liquid passing channel for communicating the liquid inlet cavity of the magnetic filter element with the first port of the visual pressure difference alarm, the second port of the visual pressure difference alarm is communicated with the liquid outlet cavity, and the working end of the pressure gauge is positioned in the dirty liquid cavity;

and a magnetic filter assembly is arranged in the dirty liquid cavity.

The further technical scheme is as follows: the magnetic filter element comprises an end cover, an inner framework, a middle framework, an outer framework, an inner filter layer and an outer filter layer, wherein the inner framework is coaxially arranged with the outer framework, the two ends of the outer framework are sealed through the end cover, the outer filter layer is filled between the outer framework and the middle framework, and the inner filter layer is filled between the middle framework and the inner framework.

The further technical scheme is as follows: interior filtering layer is wavy setting along the annular, installs the magnetic stripe of a plurality of equipartitions between the wave, the magnetic stripe both sides interior filtering layer passes through the strip chucking of joint.

The further technical scheme is as follows: the magnetic filter assembly comprises a plurality of supporting rods, scraping plates and a magnetic filter cylinder, the supporting rods are uniformly and annularly arranged, one end of each supporting rod is installed on the inner side face of the upper cover, one end of the magnetic filter cylinder is installed on the inner side face of the filter base, the scraping plates are installed at the head of the supporting rods, and the outer ends of the scraping plates abut against the inner peripheral face of the magnetic filter cylinder.

The further technical scheme is as follows: the magnetic filter cylinder comprises an inner cylinder, magnetic blocks and an outer cylinder, wherein the magnetic blocks are distributed in a layered mode and are located between the inner cylinder and the outer cylinder.

The further technical scheme is as follows: the inner cylinder and the outer cylinder are both of net cylinder structures.

Compared with the prior art, the utility model can at least achieve one of the following beneficial effects:

the utility model provides a magnetic filter for a hydraulic system, wherein a pressure difference loop is arranged on the filter, a visual pressure difference alarm is arranged on the pressure difference loop, the filter element can be timely cleaned or replaced when the filtering pressure is increased to a certain value, so that the filtering effect is ensured, and a magnetic filter assembly is further arranged on the basis, so that a liquid medium can be deironing and filtered before the magnetic filter element, and the collected iron impurities and peculiar impurities can be automatically scraped when the magnetic filter element is replaced and the filter is disassembled, so that the personnel cleaning work is reduced, and the working efficiency and the use quality of the filter are improved.

Drawings

Fig. 1 is a schematic structural diagram of a magnetic filter for a hydraulic system according to the present invention.

Fig. 2 is a schematic structural view of the magnetic filter element of fig. 1 according to the present invention.

FIG. 3 is a schematic structural diagram of the inner filter layer shown in FIG. 2 according to the present invention.

FIG. 4 is a schematic view of the magnetic filter assembly of FIG. 1 according to the present invention.

Reference numerals: 1. a filter base; 2. a cylinder body; 3. an upper cover; 4. a magnetic filter element; 5. a visual pressure difference alarm; 6. a pressure gauge; 7. a dirty liquid channel; 8. a waste liquid chamber; 9. a clear liquid channel; 10. a clean fluid chamber; 11. a liquid passing channel; 12. a magnetic strip; 13. seaming strips; 14. a magnetic filter assembly; 141. a strut; 142. a squeegee; 143. a magnetic filter cartridge; 1431. an inner barrel; 1432. a magnetic block; 1433. an outer cylinder.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, which are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment is as follows:

in the embodiment, as shown in fig. 1, a magnetic filter for a hydraulic system has the following structure: the visual pressure difference alarm device comprises a filter base 1, a cylinder body 2, an upper cover 3, a magnetic filter element 4, a visual pressure difference alarm 5 and a pressure gauge 6, wherein the cylinder body 2 is hermetically arranged on the filter base 1 through a thread structure or a bolt, the magnetic filter element 4 is arranged in the cylinder body 2 through the upper cover 3, referring to the structure of fig. 1, a sewage passage 7 of the filter base 1 is communicated with a sewage cavity 8 of the magnetic filter element 4, a liquid purifying passage 9 of the filter base 1 is communicated with a liquid purifying cavity 10 between the magnetic filter element 4 and the cylinder body 2, and the visual pressure difference alarm 5 and the pressure gauge 6 are both arranged on the upper cover 3; the upper cover 3 is provided with a liquid passing channel 11 for communicating the sewage cavity of the magnetic filter element 4 with a first port of a visual differential pressure alarm 5, a second port of the visual differential pressure alarm 5 is communicated with a liquid purifying cavity 10, and a working end of a pressure gauge 6 is positioned in the sewage cavity 8; a magnetic filter assembly 14 is arranged in the sewage cavity 8.

The working process of the utility model is as follows: when dirty hydraulic oil enters a dirty liquid cavity 8 of the magnetic filter element 4 through a dirty liquid channel 7 on the filter base 1, continuous hydraulic pressure can generate pressure difference, the hydraulic oil is further squeezed into a clean liquid cavity 10 between the magnetic filter element 4 and the cylinder body 2 from the dirty liquid cavity 8 of the magnetic filter element 4, pure hydraulic oil is further formed and is discharged from a clean liquid channel 9 of the filter base 1, and iron impurities in the hydraulic oil can be collected by a magnetic filter assembly 14 and the magnetic filter element 4 in the dirty liquid cavity 8; in addition, when the pressure difference is too big inside and outside magnetic filter element 4, that is to say when the filter capacity reduces, refer to the hydraulic circuit in fig. 1, can promote visual pressure difference alarm 5, in time observe to wash or change magnetic filter element 4, guarantee the filter effect, and on this basis, and when disassembling filter change magnetic filter element 4, this magnetism is strained subassembly 14 and can be scraped the iron impurity and other impurity of collecting automatically, reduces personnel's cleaning work, improves the quality of use of work efficiency and filter.

The second embodiment:

in the present embodiment, as shown in fig. 2 and 3, the magnetic filter element 4 includes an end cap 41, an inner frame 42, a middle frame 43, an outer frame 44, an inner filter layer 45, and an outer filter layer 46, the inner frame 42, the middle frame 43, and the outer frame 44 are coaxially disposed, and both ends are sealed by the end cap 41, the outer filter layer 46 is filled between the outer frame 44 and the middle frame 43, and the inner filter layer 45 is filled between the middle frame 43 and the inner frame 42. Interior filter 45 is wavy setting along the annular, installs the magnetic stripe 12 of a plurality of equipartitions between the wave, and the interior filter 45 of magnetic stripe 12 both sides passes through the strip 13 chucking of joint.

The multi-layer filtering structure and the magnetic strips 12 in the inner filtering layer 45 can improve the filtering effect of the magnetic filter.

Example three:

in this embodiment, as shown in fig. 4, the magnetic filter assembly 14 includes a plurality of struts 141, scrapers 142 and a magnetic filter cylinder 143, the plurality of struts 141 are uniformly and annularly arranged for a circle, and the same end of all the struts 141 is installed on the inner side surface of the upper cover 3, one end of the magnetic filter cylinder 143 is installed on the inner side surface of the filter base 1, the scrapers 142 are installed on the head of the struts 141, and the outer end of the scrapers 142 abuts against the inner peripheral surface of the magnetic filter cylinder 143 for scraping off impurities attached to the inner wall of the magnetic filter cylinder 143.

The magnetic filter cartridge 143 includes an inner cylinder 1431, magnetic blocks 1432 and an outer cylinder 1433, the magnetic blocks 1432 are arranged in a layer and located between the inner cylinder 1431 and the outer cylinder 1433, and the magnetic blocks 1432 may be embedded or glued.

The inner cylinder 1431 and the outer cylinder 1433 are both net cylinder structures, and can also effectively play a role in filtering.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims (6)

1. A magnetic filter for a hydraulic system, comprising: the device comprises a filter base (1), a cylinder body (2), an upper cover (3), a magnetic filter element (4), a visual pressure difference alarm (5) and a pressure gauge (6), wherein the cylinder body (2) is installed on the filter base (1), the magnetic filter element (4) is installed in the cylinder body (2) through the upper cover (3), a sewage passage (7) of the filter base (1) is communicated with a sewage cavity (8) of the magnetic filter element (4), a liquid purification passage (9) of the filter base (1) is communicated with a liquid purification cavity (10) between the magnetic filter element (4) and the cylinder body (2), and the visual pressure difference alarm (5) and the pressure gauge (6) are both installed on the upper cover (3); wherein, the first and the second end of the pipe are connected with each other,

the upper cover (3) is provided with a liquid passing channel (11) for communicating the magnetic filter element (4) sewage cavity with the first port of the visual differential pressure alarm (5), the second port of the visual differential pressure alarm (5) is communicated with the liquid purifying cavity (10), and the working end of the pressure gauge (6) is positioned in the sewage cavity (8);

and a magnetic filter assembly (14) is arranged in the sewage cavity (8).

2. A magnetic filter for hydraulic systems, as claimed in claim 1, wherein: magnetic filter element (4) include end cover (41), inner frame (42), well skeleton (43), outer skeleton (44), interior filtering layer (45) and outer filtering layer (46), inner frame (42) well skeleton (43) with outer skeleton (44) coaxial arrangement and both ends pass through end cover (41) are sealed, outer filtering layer (46) are filled outer skeleton (44) with between well skeleton (43), fill in inner filtering layer (45) well skeleton (43) with between inner frame (42).

3. A magnetic filter for hydraulic systems, as claimed in claim 2, wherein: interior filter layer (45) are wavy setting along the annular, install magnetic stripe (12) of a plurality of equipartitions between the wave, magnetic stripe (12) both sides interior filter layer (45) are through joint strip (13) chucking.

4. A magnetic filter for hydraulic systems, as claimed in claim 1, wherein: the magnetic filter assembly (14) comprises support rods (141), scraping plates (142) and a magnetic filter cylinder (143), the support rods (141) are uniformly and annularly arranged, one end of each support rod is installed on the inner side face of the upper cover (3), one end of the magnetic filter cylinder (143) is installed on the inner side face of the filter base (1), the scraping plates (142) are installed at the head of the support rods (141), and the outer ends of the scraping plates (142) abut against the inner peripheral face of the magnetic filter cylinder (143).

5. A magnetic filter for hydraulic systems, according to claim 4, characterized in that: the magnetic filter cartridge (143) comprises an inner cylinder (1431), magnetic blocks (1432) and an outer cylinder (1433), wherein the magnetic blocks (1432) are arranged in a layer and are positioned between the inner cylinder (1431) and the outer cylinder (1433).

6. A magnetic filter for hydraulic systems, according to claim 5, characterized in that: the inner cylinder (1431) and the outer cylinder (1433) are both of a mesh cylinder structure.

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