Lubricating oil filter element with multiple filtering structures

Abstract

The lubricating oil filter element with the multiple filtering structures comprises an inner element body, an outer element body and an end cover, a first connecting pipe is arranged at the upper end of the end cover, an oil inlet hole is formed in the end cover in a penetrating mode, the upper end of the inner element body penetrates through the end cover and is fixed to the end cover, and a second connecting pipe is arranged at the lower end of the inner element body. The outer core is arranged outside the inner core, and the upper end of the outer core is fixed with the lower end of the end cover; compared with the prior art, the lubricating oil filter element with the multiple filtering structures has the advantages that the lubricating oil filter element with the multiple filtering structures comprises the inner element, the outer element and the end cover, the flow guide inclined holes are formed in the outer element, rotational flow can be generated in the outer element, and large-particle dirt can be gathered in the dirt collecting mechanism on the side face of the inner element. The filter holes are formed in the side surface of the inner core, so that small-particle dirt is secondarily filtered, and the filtering effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil filter elements, in particular to a lubricating oil filter element with a multiple filtering structure. Background Art

[0002] Hydraulic oil is a liquid lubricant used to reduce mechanical friction, wear and corrosion. It has good fluidity and stability, and can effectively lubricate various metal and non-metal parts. In the hydraulic system, the oil needs to be continuously filtered during the circulation process to prevent impurities from entering the system and causing failures. However, the existing hydraulic oil filter element has a single layer, and the dirt filtered out during use is easily covered on the surface of the filter hole and causes blockage.

[0003] For example, the Chinese utility model patent with application number 202222836719.1 discloses an impact-resistant multi-filter large-flow hydraulic lubricating oil filter. When working, the filtered liquid enters the oil inlet chamber from the oil inlet, then enters the housing through the through hole, and enters the oil outlet chamber from the oil outlet of the filter element after being filtered by multiple filter elements, and then is discharged from the equipment through the oil outlet; another example is a hydraulic oil filtering mechanism of the Chinese utility model patent with application number 201922024136.7, in which the engine oil enters the first valve block from the oil inlet, enters the oil inlet hole of the engine oil filter element along the second oil inlet pipeline and the first oil inlet pipeline for filtration, and is discharged from the oil outlet hole after filtration, and is discharged from the oil outlet along the first oil outlet pipeline and the second oil outlet pipeline to complete the filtration.

[0004] The above patents all have the problem of single filtering level mentioned above, and the surface of the filter element is easily covered with dirt. Therefore, the purpose of this application is to propose a lubricating oil filter element with a multiple filtering structure to solve the above problem. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a lubricating oil filter element with a multiple filtering structure to solve the above problem.

[0006] To achieve the above-mentioned purpose, the utility model provides a lubricating oil filter element with a multiple filtering structure, comprising an inner core, an outer core and an end cover, wherein the upper end of the end cover is provided with a first connecting pipe, and the end cover is penetrated with an oil inlet hole, the upper end of the inner core penetrates the end cover and is fixed to the end cover, and the outer core is arranged outside the inner core and the upper end is fixed to the lower end of the end cover;

[0007] The side of the outer core is provided with a diversion inclined hole along the tangential direction, the side of the inner core is penetrated with a filter hole, and the side of the inner core is installed with a dirt collection mechanism, which includes a recessed portion embedded in the surface of the inner core and an adsorption structure arranged in the recessed portion.

[0008] Preferably, the adsorption structure includes a mounting plate detachably fixed in the recessed portion and an adsorption material arranged in the mounting plate.

[0009] Preferably, the mounting plate is a U-shaped structure, and the mouth of the U-shaped structure is retracted, the recess is consistent with the shape of the mounting plate, the mounting plate is slid into the recess from the lower end, and the lower end of the mounting plate is in close contact with the bottom of the outer core.

[0010] Preferably, the mounting plate is provided with an opening, and the adsorption material is fixed on both sides of the inner wall of the mounting plate.

[0011] Preferably, the two sides of the mounting plate are connected via a baffle, the baffle is penetrated by a through hole, and the adsorption material is limited inside the mounting plate.

[0012] Preferably, a second connecting tube is integrally formed at the lower end of the end cover, and the outer core is threadedly connected between the inner wall of the upper end of the outer core and the second connecting tube.

[0013] Compared with the prior art, the utility model has the following advantages: the utility model is a lubricating oil filter element with multiple filtering structures, including an inner core, an outer core and an end cover, and the outer core is provided with a flow guide inclined hole, which can generate a vortex inside the outer core, so that large particles of dirt are gathered in the dirt collection mechanism on the side of the inner core. The side of the inner core is provided with a filter hole, which performs secondary filtering on small particles of dirt, further improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Figure 4 It is a schematic diagram of the connection structure between the inner core and the end cover of the utility model.

[0019] Figure 5 This is a schematic diagram of the inner core structure of the utility model.

[0020] Figure 6 The figure is a schematic structural diagram of an embodiment of the adsorption structure of the utility model.

[0021] Figure 7 This is a schematic structural diagram of another embodiment of the adsorption structure of the utility model.

[0022] Figure 8 This is a schematic diagram of the state structure of the utility model after the installation structure.

[0023] In the figure: 10, inner core; 11, filter hole; 20, outer core; 21, diversion inclined hole; 30, end cover; 31, first connecting pipe; 32, oil inlet hole; 33, second connecting pipe; 40, dirt collecting mechanism; 41, recessed portion; 42, adsorption structure; 421, mounting plate; 422, adsorption material; 423, baffle; 424, through hole; 50, oil inlet pipeline; 60, oil outlet pipeline; 70, filtering equipment. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-8 The specific implementation modes of the present utility model are further described in detail. Example

[0025] A lubricating oil filter element with a multiple filtering structure includes an inner core 10, an outer core 20 and an end cover 30. The inner core 10 and the outer core 20 can be installed in a filtering device 70 through the end cover 30, and are used to filter the hydraulic oil in the hydraulic system. The upper end of the end cover 30 is provided with a first connecting pipe 31 for connecting to the hydraulic system, and the end cover 30 is penetrated by an oil inlet hole 32. After the hydraulic oil enters the first connecting pipe 31 through the oil inlet pipeline 50, it reaches the interior of the filtering device 70 through the oil inlet hole 32. , after passing through the outer core 20 and the inner core 10 in sequence, it is discharged from the upper end of the inner core 10 and returned to the hydraulic system through the oil outlet pipeline 60. Specifically, the upper end of the inner core 10 passes through the end cover 30 and is fixed to the end cover 30, and the outer core 20 is arranged outside the inner core 10 and the upper end is fixed to the lower end of the end cover 30. Specifically, the lower end of the end cover 30 is integrally formed with a second connecting pipe 33, and the inner wall of the upper end of the outer core 20 is threadedly connected to the second connecting pipe 33.

[0026] The side of the outer core 20 is provided with a guide inclined hole 21 along the tangential direction. After the hydraulic oil enters the interior of the outer core 20 through the guide inclined hole 21, a vortex is generated inside the outer core 20. This vortex will cause the hydraulic oil and the dirt contained in it to move around the inner core 10. The side of the inner core 10 is penetrated by a filter hole 11, and a dirt collecting mechanism 40 is installed on the side of the inner core 10. The dirt collecting mechanism 40 is used to filter large dirt in the hydraulic oil to prevent the large dirt from covering the surface of the inner core 10 and blocking the filter hole 11. The filter hole 11 is used to filter small dirt in the hydraulic oil. Through this multiple filtering method, the filtering accuracy is guaranteed.

[0027] The dirt collecting mechanism 40 includes a recessed portion 41 embedded in the surface of the inner core 10 and an adsorption structure 42 arranged in the recessed portion 41. It can be understood that the hydraulic oil will gradually approach the surface of the inner core 10 when moving around the side of the inner core 10. In this way, the hydraulic oil can smoothly pass through the filter hole 11 into the interior of the inner core 10, and then return to the hydraulic system through the oil outlet pipeline 60, while the dirt will move circumferentially along the surface of the inner core 10. When the dirt moves to the recessed portion 41, it will automatically enter the recessed portion 41 and then be adsorbed by the adsorption structure 42. In this way, the dirt can be concentrated at a certain position of the inner core 10 and will not cover the entire surface of the inner core 10.

[0028] Specifically, the adsorption structure 42 includes a mounting plate 421 detachably fixed in the recessed portion 41 and an adsorption material 422 disposed in the mounting plate 421 .

[0029] The mounting plate 421 is a U-shaped structure, and the mouth of the U-shaped structure is retracted. The recessed portion 41 is consistent in shape with the mounting plate 421. The mounting plate 421 is slidably inserted into the recessed portion 41 from the lower end, and the lower end of the mounting plate 421 is in close contact with the bottom of the outer core 20. During installation, the mounting plate 421 is inserted into the recessed portion 41 from the lower end, and then the outer core 20 is installed on the end cover 30. The mounting plate 421 can be limited by the lower end of the outer core 20.

[0030] It is worth mentioning that, since the mounting plate 421 is a U-shaped structure with an inwardly contracted opening, it is more difficult for dirt to come out after entering the recessed portion 41 .

[0031] In this embodiment, please refer to Figure 7 The mounting plate 421 is opened, and the adsorption material 422 is fixed on both sides of the inner wall of the mounting plate 421. The adsorption material 422 can be a bristle structure or a steel ball structure. Example

[0032] A lubricating oil filter element with a multiple filtering structure is substantially the same as that of the first embodiment, except that:

[0033] The two sides of the mounting plate 421 are connected by a baffle 423, and the baffle 423 is penetrated by a through hole 424. The adsorption material 422 is limited inside the mounting plate 421. In this embodiment, the adsorption material 422 can be a steel wool structure, which is limited inside the mounting plate 421, and dirt can reach the mounting plate 421 through the through hole 424, and thus be entangled by the steel wool structure.

[0034] The utility model discloses a lubricating oil filter element with a multiple filtering structure, which is composed of an inner core 10, an outer core 20 and an end cover 30, and is used to filter the hydraulic oil in the hydraulic system. The inner core 10 and the outer core 20 are assembled through the end cover 30 to form a whole. A first connecting pipe 31 is provided at the upper end of the end cover 30 to connect with the hydraulic system. At the same time, an oil inlet hole 32 is provided through the end cover 30, so that the hydraulic oil can enter the inside of the filtering device 70 through the oil inlet pipeline 50. The upper end of the outer core 20 is designed with a diversion inclined hole 21, which can generate a vortex inside the outer core 20. The vortex can better collect large dirt into the dirt collection mechanism 40 on the side of the inner core 10, and the dirt in the hydraulic oil can be secondary filtered through the filter hole 11 on the side of the inner core 10 to improve the filtering efficiency.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above 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 utility model shall be included in the protection scope of the utility model.

Claims

1. A lubricating oil filter element with a multiple filtering structure, characterized in that: The invention comprises an inner core (10), an outer core (20) and an end cover (30), wherein the upper end of the end cover (30) is provided with a first connecting pipe (31), and the end cover (30) is penetrated by an oil inlet hole (32), the upper end of the inner core (10) penetrates the end cover (30) and is fixed to the end cover (30), and the outer core (20) is arranged outside the inner core (10) and the upper end is fixed to the lower end of the end cover (30); The side surface of the outer core (20) is provided with a flow guide inclined hole (21) along a tangential direction, the side surface of the inner core (10) is provided with a filter hole (11) penetrating therethrough, and a dirt collection mechanism (40) is installed on the side surface of the inner core (10), the dirt collection mechanism (40) comprising a recessed portion (41) embedded in the surface of the inner core (10) and an adsorption structure (42) arranged in the recessed portion (41).

2. The lubricating oil filter element with a multiple filtering structure according to claim 1, characterized in that: The adsorption structure (42) comprises a mounting plate (421) detachably fixed in the recessed portion (41) and an adsorption material (422) arranged in the mounting plate (421).

3. The lubricating oil filter element with a multiple filtering structure according to claim 2, characterized in that: The mounting plate (421) is a U-shaped structure, and the mouth of the U-shaped structure is retracted, the recessed portion (41) is consistent in shape with the mounting plate (421), the mounting plate (421) is slidably inserted into the recessed portion (41) from the lower end, and the lower end of the mounting plate (421) is in close contact with the bottom of the outer core (20).

4. The lubricating oil filter element with a multiple filtering structure according to claim 3, characterized in that: The mounting plate (421) is provided with an opening, and the adsorption material (422) is fixed on both sides of the inner wall of the mounting plate (421).

5. The lubricating oil filter element with a multiple filtering structure according to claim 3, characterized in that: The two sides of the mounting plate (421) are connected via a baffle (423), and a through hole (424) is provided through the baffle (423). The adsorption material (422) is limited inside the mounting plate (421).

6. The lubricating oil filter element with a multiple filtering structure according to claim 1, characterized in that: A second connecting tube (33) is integrally formed at the lower end of the end cover (30), and the outer core (20) is threadedly connected between the inner wall of the upper end of the outer core (20) and the second connecting tube (33).

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