Anti-blocking multi-loop oil suction and return filter

Abstract

The utility model discloses an anti-blocking type multi-loop oil suction and return filter which comprises a pipe body, two oil inlet pipes are welded to the circumferential outer wall of the pipe body, a slag discharging box is fixed to the bottom of the pipe body through bolts, a protective shell is welded to the bottom of the slag discharging box, and a conical block is fixed to one end of a rotating shaft through bolts. A filter cartridge is fixed at the top of the conical block through a bolt. According to the utility model, when residues are blocked outside and fall into the residue discharge box, the baffle plate pushes the residues into the discharge port, and the residues are pushed out of the residue discharge pipe through the spiral conveying rod, so that the pipeline is dredged, the filtering efficiency of the filter is improved, and when the residues on the filter cylinder are too much, the residues can be discharged out of the discharge pipe through the spiral conveying rod. Residues are hung down through the brush scraping plates around the filter cartridge, blockage of the surface of the filter cartridge is reduced, the stability of the filter is improved, impurities are not prone to being accumulated at the top, and the influence of the impurities on the performance of the filter is reduced.

Description

Technical Field

[0001] This utility model relates to the field of suction oil filter technology, and in particular to an anti-clogging multi-loop suction oil filter. Background Technology

[0002] An oil suction filter is installed at the suction inlet of the oil pump. Its main function is to protect the oil pump and other hydraulic components by preventing the intake of contaminants and impurities, thereby effectively controlling contamination of the hydraulic system and improving its cleanliness. The flow rate of the oil suction filter is selected based on the maximum flow rate.

[0003] A search revealed that the announcement, CN217593983U, describes an oil suction and return filter. This filter uses a rotating block to drive a connecting shaft, which in turn rotates a wiping ring on the surface of a filter housing. The wiping pad then wipes the surface of the filter housing, and the residue falls into a discharge trough. The residue is then discharged by opening a valve. However, in this device, the residue falls into the discharge trough and is then discharged through a discharge pipe. Due to the small size of the bottom opening, residue easily accumulates at the bottom of the device during discharge, causing blockage in the discharge pipe and reducing filtration efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging multi-loop suction oil filter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A clog-resistant multi-loop suction oil filter includes a pipe body with two inlet pipes welded to its outer circumference. A slag discharge box is bolted to the bottom of the pipe body, and a protective shell is welded to the bottom of the slag discharge box. A motor is bolted to the inner bottom wall of the protective shell. One end of the motor output shaft is connected to a rotating shaft via a coupling. A cone block is bolted to one end of the rotating shaft, and a filter cartridge is bolted to the top of the cone block. A cylinder is rotatably connected to the top of the filter cartridge. Two oil outlet pipes are welded to the outer circumference of the cylinder and pass through the pipe body. A discharge port is provided at the bottom of the slag discharge box. A first bevel gear is keyed to the outer circumference of the rotating shaft. A slag discharge pipe is welded to the outer circumference of the protective shell and connected to the discharge port. A spiral conveying rod is rotatably connected inside the slag discharge pipe. A second bevel gear is keyed to one end of the spiral conveying rod, and the second bevel gear meshes with the first bevel gear.

[0007] As a further embodiment of this utility model, the inner circumference of the tube body is fixed with multiple brush scrapers by bolts, and the brush scrapers are in contact with the outer wall of the filter cartridge.

[0008] As a further embodiment of this utility model, an arc-shaped top is welded and fixed to the top of the tube body, and the upper surface of the arc-shaped top is coated with a waterproof coating.

[0009] As a further embodiment of this utility model, the bottom of the cone block is welded with multiple baffles, and the bottom of the baffles is in contact with the bottom inner wall of the slag discharge box.

[0010] As a further improvement of this utility model, the outer circumferential wall of the protective shell is provided with multiple ventilation openings.

[0011] As a further improvement of this utility model, a flange is welded to one end of each of the two oil inlet pipes and oil outlet pipes.

[0012] As a further embodiment of this utility model, a switch valve is fixed to the outer circumference of the slag discharge pipe by bolts.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model is equipped with a spiral conveying rod. When the filter cartridge blocks the residue from falling into the slag discharge box, the baffle will push the residue into the discharge port, and then the spiral conveying rod will push the residue out of the slag discharge pipe, thereby satisfying the need for pipe dredging and increasing the filtration efficiency of the filter.

[0015] 2. This utility model is equipped with a brush scraper. When there is too much residue on the filter cartridge, the residue is scraped off by the brush scraper around the filter cartridge, reducing the clogging on the surface of the filter cartridge and increasing the stability of the filter.

[0016] 3. This utility model has an arc-shaped top. The surface shape of the arc-shaped top makes it difficult for impurities to accumulate on the top, reducing the impact of impurities on the filter performance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an anti-clogging multi-loop suction oil filter proposed in this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of an anti-clogging multi-loop suction oil filter proposed in this utility model;

[0019] Figure 3 This is a bottom cross-sectional view of the anti-clogging multi-loop suction oil filter proposed in this utility model.

[0020] In the diagram: 1. Pipe body; 2. Oil inlet pipe; 3. Oil outlet pipe; 4. Slag discharge box; 5. Slag discharge pipe; 6. Protective shell; 7. Arc-shaped top; 8. Cylinder; 9. Brush scraper; 10. Filter cartridge; 11. Conical block; 12. Rotating shaft; 13. First bevel gear; 14. Motor; 15. Baffle; 16. Ventilation port; 17. Second bevel gear; 18. Screw conveyor rod; 19. Discharge port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-3 A clog-resistant multi-loop suction oil filter includes a pipe body 1, with two oil inlet pipes 2 welded to the outer circumference of the pipe body 1. A slag discharge box 4 is fixed to the bottom of the pipe body 1 by bolts. A protective shell 6 is welded to the bottom of the slag discharge box 4. A motor 14 is fixed to the inner bottom wall of the protective shell 6 by bolts. One end of the output shaft of the motor 14 is connected to a rotating shaft 12 via a coupling. One end of the rotating shaft 12 is fixed to a cone block 11 by bolts. A filter cartridge 10 is fixed to the top of the cone block 11 by bolts. A cylinder 8 is rotatably connected to the top of the filter cartridge 10 via a bearing turntable. Two oil outlet pipes 3 are welded to the outer circumference of the cylinder 8, and the oil outlet pipes 3 pass through the pipe body 1.

[0023] The bottom of the slag discharge box 4 has a discharge port 19. A first bevel gear 13 is keyed to the outer circumference of the rotating shaft 12. A slag discharge pipe 5 is welded to the outer circumference of the protective shell 6, and the slag discharge pipe 5 is connected to the discharge port 19. A screw conveyor rod 18 is rotatably connected to the slag discharge pipe 5 through a bearing. A second bevel gear 17 is keyed to one end of the screw conveyor rod 18, and the second bevel gear 17 meshes with the first bevel gear 13. In use, the motor 14 is started, and the motor 14 drives the rotating shaft 12 to rotate. Since the first bevel gear 13 is keyed to the rotating shaft 12, and the first bevel gear... Wheel 13 meshes with the second bevel gear 17. The rotating shaft 12 drives the first bevel gear 13 and the second bevel gear 17 to rotate. The second bevel gear 17 drives the screw conveyor 18 to rotate inside the slag discharge pipe 5. Since the unfiltered oil needs to pass through the filter cartridge 10 to enter the oil outlet pipe 3, the residue will be blocked outside by the filter cartridge 10. The residue falls into the slag discharge box 4 and enters the slag discharge pipe 5 through the discharge port 19. The screw conveyor 18 pushes the residue outside the slag discharge pipe 5, thereby satisfying the unblocking of the pipeline and increasing the filtration efficiency of the filter.

[0024] In this utility model, multiple brush scrapers 9 are fixed to the inner circumference of the tube body 1 by bolts, and the brush scrapers 9 are in contact with the outer wall of the filter cylinder 10. When there is too much residue on the filter cylinder 10, the residue is hung off by the brush scrapers 9 around the filter cylinder 10, reducing the clogging of the filter holes on the surface of the filter cylinder 10 and increasing the stability of the filter.

[0025] The top of the tube body 1 is welded and fixed with an arc-shaped top 7, and the upper surface of the arc-shaped top 7 is coated with a waterproof coating, which makes it difficult for impurities to accumulate at the top and reduces the impact of impurities on the filter performance. Multiple baffles 15 are welded to the bottom of the cone block 11, and the bottom of the baffles 15 is in contact with the bottom inner wall of the slag discharge box 4. When the residue accumulates in the slag discharge box 4, the baffles 15 can push the residue into the discharge port 19, which increases the slag discharge efficiency of the filter.

[0026] The outer circumferential wall of the protective shell 6 has multiple ventilation openings 16 to facilitate heat dissipation from the interior of the protective shell 6. Flanges are welded to one end of the two oil inlet pipes 2 and the oil outlet pipe 3, which facilitates connecting the output end to the oil inlet pipe 2 through the flange and connecting the collection end to the oil outlet pipe 3 through the flange. The outer circumferential wall of the slag discharge pipe 5 is fixed with a switch valve by bolts, which can discharge the residue for cleaning by opening the switch valve, which can quickly clean the internal residue and improve the convenience of the device.

[0027] Working principle: When oil filtration is required, two inlet pipes 2 are connected to the oil tank via flanges, and two outlet pipes 3 are connected to the oil storage tank. The oil to be filtered enters the pipe body 1. A filter cartridge 10 is located at the center of the pipe body 1, and the bottom of the filter cartridge 10 is closed. A cylinder 8 is connected to the upper end of the filter cartridge 10, and the cylinder 8 is connected to the outlet pipe 3. When unfiltered oil needs to enter the outlet pipe 3, it must pass through the filter cartridge 10 before entering the suction pipe, thus filtering the oil. When it is necessary to remove residue from the oil, the motor 14 is started, driving the rotating shaft 12 to rotate, causing the cone block 11 and the filter cartridge 10 to rotate inside the pipe body 1. Since the brush scraper 9 inside the tube body 1 is fixed, when the filter cartridge 10 rotates, it will hang the residue blocked on the outside through the brush scraper 9 into the slag discharge box 4. Since the cone block 11 is fixed with a baffle 15, the rotation of the cone block 11 will drive the baffle 15 to rotate in the slag discharge box 4, pushing the residue in the slag discharge box 4 into the discharge port 19 through the baffle 15. The rotating shaft 12 drives the first bevel gear 13 to rotate and at the same time drives the second bevel gear 17 to rotate, so that the screw conveyor 18 rotates in the slag discharge pipe 5. Since the discharge port 19 is connected to the slag discharge pipe 5, it pushes the residue to move in the slag discharge pipe 5, thereby satisfying the dredging of the pipe and increasing the filtration efficiency of the filter.

[0028] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clog-resistant multi-loop suction oil filter, comprising a pipe body (1), characterized in that, Two oil inlet pipes (2) are fixedly connected to the outer circumference of the pipe body (1). A slag discharge box (4) is fixedly connected to the bottom of the pipe body (1). A protective shell (6) is fixedly connected to the bottom of the slag discharge box (4). A motor (14) is fixedly connected to the inner bottom wall of the protective shell (6). One end of the output shaft of the motor (14) is connected to a rotating shaft (12) through a coupling. A cone block (11) is fixedly connected to one end of the rotating shaft (12). A filter cylinder (10) is fixedly connected to the top of the cone block (11). A cylinder (8) is rotatably connected to the top of the filter cylinder (10). The outer circumference of the cylinder (8) is fixedly connected to the outer wall of the cylinder (8). Two oil outlet pipes (3) are connected, and the oil outlet pipes (3) pass through the pipe body (1). The bottom of the slag discharge box (4) is provided with a discharge port (19). The outer circumference of the rotating shaft (12) is keyed to a first bevel gear (13). The outer circumference of the protective shell (6) is fixedly connected to a slag discharge pipe (5), and the slag discharge pipe (5) is connected to the discharge port (19). A spiral conveying rod (18) is rotatably connected inside the slag discharge pipe (5). One end of the spiral conveying rod (18) is keyed to a second bevel gear (17), and the second bevel gear (17) meshes with the first bevel gear (13).

2. The anti-clogging multi-loop suction oil filter according to claim 1, characterized in that, Multiple brush scrapers (9) are fixedly connected to the inner circumference of the tube body (1), and the brush scrapers (9) are in contact with the outer wall of the filter cylinder (10).

3. The anti-clogging multi-loop suction oil filter according to claim 2, characterized in that, The top of the tube (1) is fixedly connected to an arc-shaped top (7), and the upper surface of the arc-shaped top (7) is coated with a waterproof coating.

4. The anti-clogging multi-loop suction oil filter according to claim 1, characterized in that, The bottom of the cone block (11) is fixedly connected with multiple baffles (15), and the bottom of the baffles (15) is in contact with the bottom inner wall of the slag discharge box (4).

5. The anti-clogging multi-loop suction oil filter according to claim 1, characterized in that, The outer circumferential wall of the protective shell (6) is provided with multiple ventilation openings (16).

6. The anti-clogging multi-loop suction oil filter according to claim 1, characterized in that, A flange is fixedly connected to one end of each of the two oil inlet pipes (2) and oil outlet pipes (3).

7. The anti-clogging multi-loop suction oil filter according to claim 1, characterized in that, A switch valve is fixedly connected to the outer circumference of the slag discharge pipe (5).

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