Threaded plug-in mounting type magnetic filter

Abstract

The invention belongs to the technical field of activated carbon processing, and particularly relates to a threaded plug-in mounting type magnetic filter which comprises a shell, a first boss, a second boss and a third boss are sequentially formed on the outer side wall of the shell, an annular groove is formed in the outer side wall of the first boss, a plurality of through holes are formed in the annular groove, threads are formed in the outer side wall of the second boss, and a plurality of through holes are formed in the third boss. A first limiting groove is formed between the second boss and the third boss, a mounting base is mounted at the end, close to the third boss, of the shell, and a dismounting clamping hole is formed in the end, away from the shell, of the mounting base; according to the magnetic filter disclosed by the utility model, the magnetic core is combined with the filter screen, so that ferromagnetic metal pollutants in fluid flowing through the filter can be well removed regardless of the particle size; the hydraulic oil way is used for improving an existing hydraulic oil way and is convenient and fast to mount and dismount, easy to machine and manufacture, low in cost and convenient to produce and manufacture; the structure is convenient to mount and dismount, facilitates follow-up maintenance and replacement, and is easy to operate and convenient to use.

Description

Technical Field

[0001] The invention belongs to the technical field of activated carbon processing, and in particular relates to a threaded plug-in type magnetic filter. Background Art

[0002] Metal particles have always been the most harmful solid particle contaminant in hydraulic systems. They can cause hydraulic components to get stuck, clogged, and aggravate the wear of hydraulic components. Filters are usually installed in some key locations to reduce the impact of metal particles on hydraulic components. However, in some special occasions, it is impossible to install large precision filters, such as the pilot control oil circuit of variable hydraulic pumps / motors. These special locations often use small filter meshes to replace precision filters. In order to avoid large pressure loss on the filter meshes that affects the function of the hydraulic system, the meshes of these filter meshes are large and can only filter out large millimeter-level pollutants. A large number of micron-level metal particles will still enter various hydraulic components.

[0003] In order to solve the above problems, the present application proposes a threaded plug-in magnetic filter. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a threaded plug-in magnetic filter, which has the characteristics of being easy to regularly inspect and replace.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a threaded plug-in magnetic filter, comprising a shell, an outer side wall of the shell having a first boss, a second boss and a third boss formed thereon in sequence, an annular groove is provided on the outer side wall at the first boss, a plurality of through holes are provided in the annular groove, a thread is provided on the outer side wall at the second boss, a first limiting groove is provided between the second boss and the third boss, a mounting seat is installed at one end of the shell close to the third boss, a disassembly card hole is provided at one end of the mounting seat away from the shell, a first thread is provided on the outer side wall of the mounting seat, and the mounting seat is provided with a first thread. An installation slot is provided at one end of the mounting seat extending into the interior of the shell, a magnetic core is engaged in the installation slot, a core body is installed inside the end of the shell close to the first boss, the core body is a three-step structure with successively increasing diameters, the middle step of the core body matches the inner wall of the shell, the through hole of the shell corresponds to the thinnest step of the core body, the first boss of the shell matches the thickest step of the core body, the core body and the magnetic core are concentrically arranged, a second limiting groove is provided on the outer side wall of the exposed end of the core body, a second sealing ring is installed in the second limiting groove, and there is a gap between the mounting seat and the core body.

[0006] As a preferred embodiment of a threaded plug-in magnetic filter of the present invention, the housing is threadedly connected in the hydraulic pipeline via the second boss.

[0007] As a preferred threaded plug-in magnetic filter of the present invention, the outer wall of one end of the mounting seat extending to the shell is provided with a first thread, the mounting seat is threadedly connected to the shell through the first thread, and a gasket is installed between the mounting seat and the shell.

[0008] As a preferred embodiment of the threaded plug-in magnetic filter of the present invention, the outer wall of the core body close to the edge of the shell is provided with a second thread, and the core body is threadably connected in the second thread through the second thread.

[0009] As a preferred embodiment of the threaded plug-in magnetic filter of the present invention, the mounting seat and the core are made of non-magnetic conductive material.

[0010] As a preferred embodiment of the threaded plug-in magnetic filter of the present invention, the outer side of the third boss is a nut structure.

[0011] As a preferred threaded plug-in magnetic filter of the present invention, the outer side wall of the first boss is covered with a filter screen.

[0012] As a preferred embodiment of a threaded plug-in magnetic filter of the present invention, one side of the filter screen abuts against the end surface at the second boss, and the other side abuts against the side surface of the core body.

[0013] As a preferred embodiment of the threaded plug-in magnetic filter of the present invention, a first sealing ring is installed at the first limiting groove.

[0014] As a preferred embodiment of the threaded plug-in magnetic filter of the present invention, a slot is provided on the side surface of the shell at a position corresponding to the gasket.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This patent invents a magnetic filter that combines a magnetic core with a filter screen, which has a good removal effect on ferromagnetic metal pollutants in the fluid flowing through the filter regardless of particle size; The present invention is used to improve the existing hydraulic oil circuit, and is convenient and quick to install and disassemble, and is simple to manufacture and process, low in cost, and easy to manufacture; The structure of the present invention is easy to install and disassemble, is beneficial to subsequent maintenance and replacement, is simple to operate, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2It is a structural schematic diagram of the housing in the present invention; Figure 3 It is a schematic diagram of the hydraulic oil flow of the present invention; Figure 4 It is the installation schematic diagram of the present invention; In the figure: 1, shell; 2, mounting seat; 3, core; 4, magnetic core; 5, filter; 6, gasket; 7, first sealing ring; 8, second sealing ring; 11, first boss; 12, annular groove; 13, through hole; 14, second boss; 15, first limiting groove; 16, third boss; 21, disassembly hole; 22, first thread; 23, installation slot; 31, second thread; 32, second limiting groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1 like Figures 1 to 4 As shown; A threaded plug-in magnetic filter, comprising a housing 1, an outer wall of the housing 1 having a first boss 11, a second boss 14 and a third boss 16 formed thereon in sequence, an outer wall of the first boss 11 having an annular groove 12, a plurality of through holes 13 being formed in the annular groove 12, an outer wall of the second boss 14 having a thread, a first limiting groove 15 being formed between the second boss 14 and the third boss 16, a mounting seat 2 being mounted on one end of the housing 1 close to the third boss 16, a disassembly hole 21 being formed on the end of the mounting seat 2 away from the housing 1, a first thread 22 being formed on the outer wall of the mounting seat 2, and a first thread 22 being formed on the outer wall of the mounting seat 2 extending from the housing 1. An installation slot 23 is provided at one end extending into the interior of the shell 1, and a magnetic core 4 is engaged in the installation slot 23. A core body 3 is installed inside the end of the shell 1 close to the first boss 11. The core body 3 is a three-step structure with successively increasing diameters. The middle step of the core body 3 matches the inner wall of the shell 1, and the through hole 13 of the shell 1 corresponds to the thinnest step of the core body 3. The first boss 11 of the shell 1 matches the thickest step of the core body 3. The core body 3 and the magnetic core 4 are concentrically arranged. A second limiting groove 32 is provided on the outer side wall of the exposed end of the core body 3, and a second sealing ring 8 is installed in the second limiting groove 32. There is a gap between the mounting seat 2 and the core body 3.

[0019] In the present embodiment: there are tiny ferromagnetic metal debris particles free in the hydraulic oil circuit, these tiny metal particles are easy to cause the hydraulic components to get stuck and wear, thus affecting the life and safety of the hydraulic system. In order to remove ferromagnetic metal contaminants, when the present invention is working, the shell 1 and the core 3 are installed in the hydraulic oil pipeline, the hydraulic oil enters the cavity between the shell 1 and the core 3 from the through hole 13, passes through the gap formed by the mounting seat 2 and the core 3, and enters between the core 3 and the magnetic core 4. The magnetic core 4 adsorbs the hydraulic oil, and the magnetic force of the magnetic core 4 adsorbs the ferromagnetic metal particles on the surface of the magnetic core 4. The hydraulic oil after adsorption flows out through the exposed end of the core 3 and enters the hydraulic system, thereby filtering and adsorbing the magnetic metal particles in the hydraulic oil, reducing the wear degree of the hydraulic system, and facilitating maintenance. and replacement of filters. The housing 1 of the present invention is a three-section type as a whole. During installation, the installer uses a wrench to twist the third boss 16 to rotate the housing 1 as a whole, and cooperates with the thread at the second boss 14 to install the housing 1 at the corner of the hydraulic pipeline. The second sealing ring 8 and the hydraulic oil pipe conflict to prevent the hydraulic oil from bypassing the present invention and directly entering the oil pipe, ensuring that the hydraulic oil flows according to the correct oil circuit. When regularly inspecting and removing magnetic metal particles, the hydraulic oil circuit is closed, and then an inner hexagonal wrench is inserted into the disassembly card hole 21, and the wrench is turned to rotate and remove the mounting seat 2, and the mounting seat 2 and the magnetic core 4 are withdrawn from the housing 1. The maintenance personnel can remove the magnetic core 4 from the mounting seat 2 and replace it, remove the metal particles on the surface of the magnetic core 4, insert the new magnetic core 4 into the installation card slot 23, and then install the mounting seat 2 and the magnetic core 4 together into the housing 1.

[0020] It should be noted that the present invention can be installed at the turning point of an L-shaped hydraulic oil pipeline or at the intersection of a T-shaped hydraulic oil pipeline. Figure 4 shown.

[0021] More specifically: In an optional embodiment, the housing 1 is threadedly connected to the hydraulic pipeline via the second boss 14 .

[0022] In this embodiment: through this design, by turning the third boss 16 with the help of a wrench, the shell 1 rotates as a whole, and since the second boss 14 and the hydraulic pipeline are threadedly connected, this method can quickly install and remove the entire invention, which is convenient for installing the invention into the hydraulic pipeline and convenient for modifying the existing hydraulic oil circuit.

[0023] Going further: In an optional embodiment, the outer wall of one end of the mounting base 2 extending to the shell 1 is provided with a first thread 22, the mounting base 2 is threadedly connected to the shell 1 through the first thread 22, and a gasket 6 is installed between the mounting base 2 and the shell 1; a slot is provided on the side of the shell 1 at the position corresponding to the gasket 6.

[0024] In the present embodiment: through this design, by inserting the hexagonal wrench into the disassembly hole 21, when the wrench is turned, the mounting base 2 rotates as a whole, and the disassembly hole 21 and the shell 1 are threadedly connected, thereby realizing the installation and disassembly of the mounting base 2 from the shell 1, which is convenient for the present invention to complete the maintenance and replacement of the magnetic core 4, and the gasket 6 seals the connection between the shell 1 and the mounting base 2 to prevent the hydraulic oil from leaking from the connection of the present invention.

[0025] It should be noted that the spiral directions of the first thread 22 and the thread on the second boss 14 are opposite.

[0026] Going further: In an optional embodiment, the outer wall of the core body 3 close to the edge of the shell 1 is provided with a second thread 31 , and the core body 3 is threadedly connected in the second thread 31 through the second thread 31 .

[0027] In this embodiment: through this design, the shell 1 and the core 3 of the present invention are detachable. By rotating the core 3, the second thread 31 of the core 3 is threadedly connected to the shell 1, thereby disassembling the shell 1 and the core 3. On the one hand, this structure reduces the difficulty of manufacturing and molding of the present invention, and facilitates processing and manufacturing. On the other hand, when the present invention needs to be replaced after long-term use, partial replacement can be performed according to the degree of wear, thereby reducing subsequent maintenance costs.

[0028] Going further: In an optional embodiment, the mounting base 2 and the core 3 are made of non-magnetic conductive materials.

[0029] In this embodiment, the mounting seat 2 and the core 3 are made of non-magnetic materials to prevent magnetic metal debris from being adsorbed on the mounting seat 2 and the core 3 during the flow of hydraulic oil, and to prevent residual magnetic metal debris in the housing 1 when the magnetic core 4 is removed.

[0030] Going further: In an optional embodiment, the outer side of the third boss 16 is a nut structure.

[0031] In this embodiment: this design makes it easy for operators to apply force to the third boss 16, which facilitates the installation and disassembly of the present invention.

[0032] Going further: In an optional embodiment, the outer side wall of the first boss 11 is covered with a filter screen 5 , one side of the filter screen 5 abuts against the end surface of the second boss 14 , and the other side abuts against the side surface of the core 3 .

[0033] In this embodiment: through this design, the filter 5 preliminarily filters the hydraulic oil to prevent larger particles from entering the shell 1, and to prevent larger particles from staying in the oil path formed by the shell 1, the core 3 and the magnetic core 4 to cause blockage. When installing the filter 5, the core 3 is first rotated and removed, and then it is sleeved on the first boss 11, and finally the core 3 is rotated and installed on the first boss 11, so that the filter 5 is clamped by the second boss 14 and the core 3, so that its installation is fixed and stable. When the filter 5 needs to be replaced after long-term use, the third boss 16 is rotated to remove the present invention, and the filter 5 can be removed after the core 3 is rotated. This design facilitates the replacement of the filter 5.

[0034] Going further: In an optional embodiment, a first sealing ring 7 is installed at the first limiting groove 15 .

[0035] In this embodiment: through this design, when the present invention is installed in the hydraulic oil pipe, the first sealing ring 7 seals the connection between the housing 1 and the hydraulic oil pipe to prevent the hydraulic oil from leaking from the second boss 14, thereby improving the reliability of the present invention.

[0036] The working principle and use process of the present invention: when the present invention is working, the shell 1 and the core 3 are installed in the pipeline of the hydraulic oil, the hydraulic oil enters the cavity between the shell 1 and the core 3 from the through hole 13, passes through the gap formed by the mounting seat 2 and the core 3, and enters between the core 3 and the magnetic core 4. The magnetic core 4 adsorbs the hydraulic oil, and the magnetic force of the magnetic core 4 makes the ferromagnetic metal particles adsorbed on the surface of the magnetic core 4. The hydraulic oil after adsorption flows out through the exposed end of the core 3 and enters the hydraulic system, thereby filtering and adsorbing the magnetic metal particles in the hydraulic oil, reducing the wear of the hydraulic system, and facilitating maintenance. The housing 1 of the present invention is a three-stage type. During installation, the installer twists the third boss 16 with a wrench to rotate the housing 1 as a whole, and cooperates with the thread at the second boss 14 to install the housing 1 at the corner of the hydraulic pipeline. The second sealing ring 8 and the hydraulic oil pipe are in conflict, so that the hydraulic oil is prevented from bypassing the present invention and directly entering the oil pipe, ensuring that the hydraulic oil flows according to the correct oil circuit. When the magnetic metal particles are regularly inspected and removed, the hydraulic oil circuit is closed, and then the hexagonal wrench is inserted into the disassembly card hole 21. When the wrench is turned, the mounting seat 2 rotates as a whole, and the disassembly card hole 21 and the housing 1 are threadedly connected. , thereby realizing the installation and removal of the mounting seat 2 from the housing 1, the gasket 6 seals the connection between the housing 1 and the mounting seat 2 to prevent the hydraulic oil from leaking from the connection of the present invention, the mounting seat 2 and the magnetic core 4 are withdrawn from the housing 1, and the maintenance personnel can remove the magnetic core 4 from the mounting seat 2 and replace it, remove the metal particles on the surface of the magnetic core 4, insert the new magnetic core 4 into the installation slot 23, and then install the mounting seat 2 and the magnetic core 4 together into the housing 1 to complete the maintenance and replacement of the magnetic core 4; the filter 5 preliminarily filters the hydraulic oil to prevent larger particles from entering the housing 1, and avoids larger particles from staying in the housing 1, the core 3 and the magnetic core 4 causes blockage in the oil circuit formed by the casing 1 and the core 3 of the present invention. The casing 1 and the core 3 of the present invention are detachable. By rotating the core 3, the second thread 31 of the core 3 is threadedly connected with the casing 1, thereby disassembling the casing 1 and the core 3. When installing the filter 5, the core 3 is first rotated and removed, and then sleeved on the first boss 11, and finally the core 3 is rotated and installed on the first boss 11, so that the filter 5 is clamped by the second boss 14 and the core 3, so that the installation is fixed and stable. When the filter 5 needs to be replaced after long-term use, the third boss 16 is rotated to remove the present invention, and the filter 5 can be removed after rotating the core 3. This design facilitates the replacement of the filter 5.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A threaded plug-in magnetic filter, characterized in that: The invention comprises a shell (1), an outer wall of the shell (1) being formed with a first boss (11), a second boss (14) and a third boss (16) in sequence, an outer wall of the first boss (11) being provided with an annular groove (12), a plurality of through holes (13) being provided in the annular groove (12), an outer wall of the second boss (14) being provided with a thread, a first limiting groove (15) being provided between the second boss (14) and the third boss (16), a mounting seat (2) being installed at one end of the shell (1) close to the third boss (16), a disassembly clamping hole (21) being provided at one end of the mounting seat (2) away from the shell (1), and a mounting clamping groove (23) being provided at one end of the mounting seat (2) extending into the interior of the shell (1). A magnetic core (4) is engaged in the mounting slot (23); a core body (3) is installed inside one end of the shell (1) close to the first boss (11); the core body (3) is a three-step structure with increasing diameters; the middle step of the core body (3) matches the inner wall of the shell (1); the through hole (13) of the shell (1) corresponds to the thinnest step of the core body (3); the first boss (11) of the shell (1) matches the thickest step of the core body (3); the core body (3) and the magnetic core (4) are concentrically arranged; a second limiting groove (32) is provided on the outer side wall of the exposed end of the core body (3); a second sealing ring (8) is installed in the second limiting groove (32); and a gap is provided between the mounting seat (2) and the core body (3).

2. The threaded plug-in magnetic filter according to claim 1, characterized in that: The outer side wall of the first boss (11) is covered with a filter screen (5).

3. The threaded plug-in magnetic filter according to claim 2, characterized in that: One side of the filter screen (5) abuts against the end surface at the second boss (14), and the other side abuts against the side surface of the core body (3).

4. The threaded plug-in magnetic filter according to claim 2, characterized in that: The housing (1) is threadedly connected in the hydraulic pipeline via a second boss (14).

5. The threaded plug-in magnetic filter according to claim 3, characterized in that: The outer wall of one end of the mounting seat (2) extending to the shell (1) is provided with a first thread (22); the mounting seat (2) is threadably connected to the shell (1) via the first thread (22); and a gasket (6) is installed between the mounting seat (2) and the shell (1).

6. The threaded plug-in magnetic filter according to claim 3, characterized in that: The outer wall of the core body (3) close to the edge of the shell (1) is provided with a second thread (31), and the core body (3) is threadably connected in the second thread (31) via the second thread (31).

7. The threaded plug-in magnetic filter according to claim 3, characterized in that: The mounting seat (2) and the core (3) are made of non-magnetic conductive material.

8. The threaded plug-in magnetic filter according to claim 1, characterized in that: The outer side of the third boss (16) is a nut structure.

9. The threaded plug-in magnetic filter according to claim 1, characterized in that: A first sealing ring (7) is installed at the first limiting groove (15).

10. The threaded plug-in magnetic filter according to claim 5, characterized in that: A slot is provided on the side surface of the housing (1) at a position corresponding to the gasket (6).

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