Hydraulic oil filter

Abstract

The utility model relates to the technical field of hydraulic oil filtration, in particular to a hydraulic oil filter which comprises a box body, a partition plate vertically arranged in the box body, a filter cartridge fixed at the top end of the partition plate, a liquid inlet pipe with the bottom end extending into the box body and communicated with the filter cartridge, and an impurity cleaning structure arranged in the filter cartridge, the interior of the box body is divided into an impurity cavity and an oil purifying cavity from left to right by the partition plate and the filter cartridge, an impurity discharging opening communicated with the impurity cavity is formed in the filter cartridge in the radial direction, and a plurality of liquid discharging holes communicated with the oil purifying cavity are formed in the filter cartridge; during use, hydraulic oil to be filtered enters the filter cartridge from the liquid inlet pipe and enters the oil purification cavity through the liquid discharge hole in the filter cartridge, and filtered impurities are pushed to the impurity cavity through the impurity cleaning structure; the oil filter not only can guarantee the filtering speed of oil, but also does not need to be frequently detached and cleaned, and is better in filtering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil filtration, in particular to a hydraulic oil filter. Background Art

[0002] A hydraulic oil filter is a component installed in a hydraulic station. To add hydraulic oil, the hydraulic oil is poured into the hydraulic oil filter. After being filtered by the hydraulic oil filter, the hydraulic oil enters the hydraulic station's oil tank. For example, a Chinese patent with authorization publication number CN220081844U discloses a hydraulic oil filter comprising an oil filter housing, an oil filter body, a connecting cover, and a sealing cover. The oil filter body is located within the oil filter housing, the connecting cover is fixed to the upper end of the oil filter housing, and the sealing cover is located on the connecting cover. The upper end of the oil filter body can abut against the sealing cover. When hydraulic oil is added, the sealing cover is rotated. Due to the spring's compressed state, the spring's elastic force causes the oil filter body to eject, exposing a portion of the upper end of the oil filter body. When adding hydraulic oil, the hydraulic oil is poured into the oil filter body from the upper end, making it easier to add the hydraulic oil to the oil filter body and generally preventing it from flowing out of the oil filter body. The added hydraulic oil can then flow out from the lower end of the oil filter body and be filtered through the oil filter housing.

[0003] However, in actual applications, the above-mentioned hydraulic oil filter still has the following deficiencies: the above-mentioned filter is a vertical structure. When the hydraulic oil flows downward in the oil filter body, it is filtered through the oil filter holes perpendicular to the flow direction, which will cause the loss of gravitational potential energy of the oil, thereby reducing the filtration speed of the oil. In addition, the filtered impurities are easily accumulated in the oil filter body and clog the oil filter holes. The filter needs to be disassembled and cleaned frequently, resulting in less than ideal filtering effect of the filter. Utility Model Content

[0004] The purpose of the present invention is to provide a hydraulic oil filter for the above-mentioned shortcomings, which can not only ensure the filtering speed of the oil, but also do not need to be frequently disassembled and cleaned, and has a better filtering effect.

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

[0006] A hydraulic oil filter comprises a box body, a partition vertically arranged in the box body, a filter cartridge fixed on the top of the partition, an inlet pipe at the bottom end extending into the box body and connected to the filter cartridge, and an impurity cleaning structure arranged in the filter cartridge. The partition and the filter cartridge divide the interior of the box body from left to right into an impurity chamber and a clean oil chamber. A discharge port connected to the impurity chamber is radially opened on the filter cartridge, and a plurality of drainage holes connected to the clean oil chamber are provided on the filter cartridge.

[0007] Furthermore, it also includes a reducer fixed on the rear side of the box body, which is used to drive the motor used by the reducer; the impurity cleaning structure includes a filter shaft rotatably connected to the filter barrel, and four filter blades arranged on the filter shaft. During the rotation of the filter shaft, the end of the filter blade away from the filter shaft scrapes along the inner wall of the filter barrel.

[0008] Furthermore, with the axis of the filter cartridge as the center, an angle a is formed between the bottom end of the impurity discharge port and the bottom end of the filter cartridge, and the angle range of a is 40 to 50 degrees.

[0009] Furthermore, with the axis of the filter cartridge as the center, an angle b is formed between the bottom end and the top end of the impurity discharge port, and the angle range of b is 50 to 60 degrees.

[0010] Furthermore, the top end of the partition is arranged close to the bottom end of the impurity discharge port.

[0011] Furthermore, both ends of the box body are respectively provided with a waste pipe and a liquid discharge pipe communicating with the impurity chamber and the clean oil chamber, and a valve body is respectively provided on the waste pipe and the liquid discharge pipe.

[0012] The beneficial effects of the utility model are:

[0013] In actual application, when in use, the hydraulic oil to be filtered enters the filter cartridge from the liquid inlet pipe, enters the clean oil chamber through the drainage hole on the filter cartridge, and the filtered impurities are pushed into the impurity chamber through the impurity cleaning structure; the utility model can not only ensure the filtering speed of the oil, but also does not need to be frequently disassembled for cleaning, and the filtering effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0017] Reference numerals: housing 1; impurity chamber 11; clean oil chamber 12; partition 2; filter cartridge 3; impurity discharge port 31; liquid drain hole 32; liquid inlet pipe 4; reducer 5; motor 6; filter shaft 71; filter blade 72; impurity discharge pipe 81; liquid drain pipe 82. DETAILED DESCRIPTION

[0018] like Figure 1 、 Figure 2 and Figure 3As shown, a hydraulic oil filter includes a box body 1, a partition 2 vertically arranged in the box body 1, a filter cartridge 3 fixed on the top of the partition 2, a liquid inlet pipe 4 extending into the box body 1 and connected to the filter cartridge 3 at the bottom end, and an impurity cleaning structure arranged in the filter cartridge 3. The partition 2 and the filter cartridge 3 divide the interior of the box body 1 from left to right into an impurity chamber 11 and a clean oil chamber 12. A discharge port 31 connected to the impurity chamber 11 is radially opened on the filter cartridge 3, and a plurality of drainage holes 32 connected to the clean oil chamber 12 are provided on the filter cartridge 3.

[0019] like Figure 1 、 Figure 2 and Figure 3 As shown, it also includes a reducer 5 fixed on the rear side of the box body 1, which is used to drive the motor 6 used by the reducer 5; the impurity cleaning structure includes a filter shaft 71 rotatably connected to the filter barrel 3, and four filter blades 72 are arranged on the filter shaft 71. During the rotation of the filter shaft 71, the filter blades 72 scrape along the inner wall of the filter barrel 3 at one end away from the filter shaft 71; in this embodiment, when the motor 6 drives the filter shaft 71 to rotate forward through the reducer 5, the hydraulic oil passes through the drainage hole 32 into the clean oil chamber 12, and the filtered impurities are scraped toward the discharge port 31 by the filter blades 72.

[0020] like Figure 1 、 Figure 2 and Figure 3 As shown, with the axis of the filter cartridge 3 as the center, an angle a is formed between the bottom end of the discharge port 31 and the bottom end of the filter cartridge 3, and the angle range of a is 40 to 50°. In this embodiment, when the angle range between the bottom end of the discharge port 31 and the bottom end of the filter cartridge 3 is 40 to 50°, the hydraulic oil can more easily pass through the drainage hole 32 under the action of gravity and enter the clean oil chamber 12.

[0021] like Figure 1 、 Figure 2 and Figure 3 As shown, with the axis of the filter cartridge 3 as the center, an angle b is formed between the bottom end of the impurity discharge port 31 and the top end of the impurity discharge port 31, and the angle range of b is 50 to 60°; in this embodiment, when the angle range of the angle formed between the bottom end of the impurity discharge port 31 and the top end of the impurity discharge port 31 is 50 to 60°, impurities are more easily discharged from the impurity discharge port 31.

[0022] like Figure 1 、 Figure 2 and Figure 3 As shown, the top of the partition 2 is arranged close to the bottom of the impurity discharge port 31; in this embodiment, when the top of the partition 2 is arranged close to the bottom of the impurity discharge port 31, the filtered hydraulic oil can enter the impurity discharge port 31 more easily.

[0023] like Figure 1 、 Figure 2 and Figure 3 As shown, a drainage pipe 81 and a drain pipe 82 are respectively provided at both ends of the box body 1, which are connected to the impurity chamber 11 and the clean oil chamber 12. A valve body is respectively provided on the drainage pipe 81 and the drain pipe 82. In this embodiment, the filtered impurities and hydraulic oil can be discharged through the drainage pipe 81 and the drain pipe 82.

[0024] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them with similar methods, without departing from the scope defined by the spirit of the present invention.

Claims

1. A hydraulic oil filter, characterized by: The invention comprises a box body (1), a partition (2) vertically arranged in the box body (1), a filter cartridge (3) fixed at the top end of the partition (2), a liquid inlet pipe (4) whose bottom end extends into the box body (1) and is connected to the filter cartridge (3), and an impurity cleaning structure arranged in the filter cartridge (3); the partition (2) and the filter cartridge (3) divide the interior of the box body (1) from left to right into an impurity chamber (11) and a clean oil chamber (12); a radial impurity discharge port (31) connected to the impurity chamber (11) is provided on the filter cartridge (3); and a plurality of liquid discharge holes (32) connected to the clean oil chamber (12) are provided on the filter cartridge (3).

2. A hydraulic oil filter according to claim 1, characterized in that: It also includes a reducer (5) fixed to the rear side of the housing (1) for driving a motor (6) used by the reducer (5); the impurity cleaning structure includes a filter shaft (71) rotatably connected to the filter barrel (3), and four filter blades (72) arranged on the filter shaft (71); during the rotation of the filter shaft (71), the end of the filter blade (72) away from the filter shaft (71) scrapes along the inner wall of the filter barrel (3).

3. The hydraulic oil filter according to claim 1, characterized in that: With the axis of the filter cartridge (3) as the center, an angle a is formed between the bottom end of the impurity discharge port (31) and the bottom end of the filter cartridge (3), and the angle range of a is 40 to 50 degrees.

4. The hydraulic oil filter according to claim 1, characterized in that: With the axis of the filter cartridge (3) as the center, an angle b is formed between the bottom end of the impurity discharge port (31) and the top end of the impurity discharge port (31), and the angle range of b is 50-60°.

5. The hydraulic oil filter according to claim 1, characterized in that: The top end of the partition (2) is arranged close to the bottom end of the impurity discharge port (31).

6. The hydraulic oil filter according to claim 1, characterized in that: Both ends of the box body (1) are respectively provided with a waste pipe (81) and a liquid discharge pipe (82) communicating with the impurity chamber (11) and the clean oil chamber (12), and a valve body is respectively provided on the waste pipe (81) and the liquid discharge pipe (82).

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