Defoaming oil filter of hydraulic oil tank

Abstract

The utility model belongs to the technical field of defoaming oil filters, and particularly relates to a defoaming oil filter of a hydraulic oil tank, which comprises a machine body, an oil inlet is arranged on the upper surface of the machine body, an external thread section is arranged on the circumferential side wall of the bottom of the machine body, a first sealing cover is sleeved at the bottom of the machine body, and an internal thread section is arranged on the inner wall of the first sealing cover. The external thread section is in threaded connection with the internal thread section, an oil outlet is formed in the bottom face of the first sealing cover, and second sealing covers are arranged outside the oil inlet and the oil outlet. According to the utility model, the power assembly is arranged to provide power for the subsequent filtering and defoaming assembly, the filtering efficiency of the upstream filter plate is improved through the arranged filtering and defoaming assembly, the filtered hydraulic oil can be efficiently defoamed, and the filter element can be conveniently disassembled and assembled through the arrangement of the mounting mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of defoaming oil filters, in particular to a defoaming oil filter for a hydraulic oil tank. Background Art

[0002] The hydraulic oil tank is an important component in the hydraulic system. It is mainly used to store hydraulic oil. Hydraulic oil plays multiple functions in the hydraulic system, such as transmitting power, lubrication and cooling. Its specific functions include storing hydraulic oil, dissipating heat, and separating air and impurities. The defoaming oil filter of the hydraulic oil tank is a device specially used to remove bubbles in the hydraulic oil. During the operation of the hydraulic system, due to the oil suction effect of the oil pump, the high-speed flow of the oil and the pressure changes in the pipeline, it is easy for air to mix into the hydraulic oil to form bubbles. These bubbles will have many adverse effects on the hydraulic system. The role of the defoaming oil filter is to remove these bubbles as much as possible before the hydraulic oil enters the key components of the hydraulic system to ensure the stable operation of the hydraulic system.

[0003] Existing defoaming oil filters often have multiple levels of filtration measures when in use. The upstream filtration measures initially filter the hydraulic oil to remove impurity particles, etc. These impurities easily accumulate on the filter plates, causing blockage, which in turn affects the filter efficiency and increases the labor intensity of workers. Relevant treatment measures are needed. At the same time, when defoaming, additional power is often required to achieve it, which has a high cost. The hydraulic oil that has been defoamed in the defoaming oil filter needs to pass through the filter element for final filtration before flowing into the hydraulic oil tank. During this process, the convenience of filter element replacement needs to be considered. Utility Model Content

[0004] The purpose of this utility model is to address the problems of low filtration efficiency of the upstream filter plate, additional power output required for defoaming, and inconvenient replacement of the filter element. It is to provide a defoaming oil filter for a hydraulic oil tank that can improve the filtration efficiency of the upstream filter plate, reduce the use cost of the equipment, and realize convenient replacement of the filter element.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a defoaming oil filter for a hydraulic oil tank, comprising a body, an oil inlet is provided on the upper surface of the body, an external threaded section is provided on the circumferential side wall of the bottom of the body, a No. 1 sealing cover is sleeved on the bottom of the body, an internal threaded section is provided on the inner wall of the No. 1 sealing cover, the external threaded section is threadedly connected to the internal threaded section, an oil outlet is provided on the bottom surface of the No. 1 sealing cover, a No. 2 sealing cover is provided outside the oil inlet and the oil outlet, an upstream porous filter plate is fixedly connected between the inner walls of the body, a filtering and defoaming mechanism and a mounting mechanism are provided in the body, the filtering and defoaming mechanism includes a power component and a filtering and defoaming component, and the mounting mechanism includes multiple mounting components.

[0006] Preferably, the power assembly includes a motor fixedly connected to the side wall of the machine body through a bracket, the output end of the motor is fixedly connected to a No. 1 rotating shaft, the No. 1 rotating shaft is rotatably connected to the inner wall of the machine body through a bearing, the upper surface of the upstream porous filter plate is provided with a No. 1 through groove, a sleeve is fixedly connected in the No. 1 through groove, a No. 2 rotating shaft is provided in the sleeve, the top and bottom ends of the No. 2 rotating shaft are both rotatably connected to the upper surface and bottom surface of the sleeve through bearings, the No. 1 rotating shaft is rotatably connected to the inner wall of the sleeve through a bearing at one end away from the motor, the No. 1 rotating shaft is fixedly connected to a No. 1 bevel gear at one end away from the motor, the No. 2 rotating shaft is circumferentially fixedly connected to the No. 2 bevel gear, and the No. 1 bevel gear is meshed with the No. 2 bevel gear.

[0007] Preferably, the filtering and defoaming assembly includes a No. 1 annular plate fixedly connected to the bottom surface of the upstream porous filter plate, a plurality of fixed rods are fixedly connected to the top of the No. 2 rotating shaft at equal intervals in the circumference, the bottom surfaces of the plurality of fixed rods are fixedly connected to connecting rods, the lower ends of the plurality of connecting rods are fixedly connected to cleaning rods, the bottom end of the No. 2 rotating shaft is fixedly connected to a stirring blade, and the No. 1 annular plate is outer-coated with a filter element.

[0008] Preferably, the mounting assembly includes a fixed block fixedly connected to the side wall of the No. 1 annular plate, the upper surface of the fixed block is provided with a No. 2 through groove, the inner wall of the No. 2 through groove is provided with a locking groove, the side wall of the filter element is fixedly connected to a mounting rod, the top of the mounting rod is provided with a groove near the side wall of the locking groove, an oblique clamping block is slidably connected in the groove, a spring is fixedly connected between the side wall of the oblique clamping block and the inner wall of the groove, an arc-shaped through groove is provided in the mounting rod, the arc-shaped through groove is communicated with the groove, a connecting rope is provided in the arc-shaped through groove, the side end of the connecting rope is fixedly connected to the side wall of the oblique clamping block, the other end of the connecting rope passes through the bottom end of the arc-shaped through groove, and the bottom end of the connecting rope is fixedly connected to the moving block.

[0009] Preferably, the upper surfaces and bottom surfaces of the plurality of oblique clamping blocks are respectively fitted with the inner top surfaces and inner bottom surfaces of the plurality of grooves, and a second annular plate is fixedly connected between the side walls of the plurality of movable blocks facing away.

[0010] Preferably, the first bevel gear and the second bevel gear are both located in the sleeve, and the bottom surfaces of the plurality of cleaning rods are in contact with the upper surface of the upstream porous filter plate.

[0011] Preferably, the upstream porous filter plate is concentrically arranged with the sleeve, the sleeve is concentrically arranged with the filter core, and the stirring blade is located inside the filter core.

[0012] Preferably, the first annular plate is concentrically arranged with the filter element, and the circumferential side wall of the top of the filter element is in contact with the inner wall of the first annular plate.

[0013] Compared with the existing technology, the advantages of this hydraulic oil tank defoaming oil filter are:

[0014] 1. The utility model is provided with a power component to provide power for the subsequent filtering and defoaming components, thereby improving the filtration efficiency of the upstream filter plate while reducing the use cost of the equipment. It only uses one power source to achieve multiple functions, which is more in line with actual usage scenarios and is conducive to improving the practicality of the equipment.

[0015] 2. The utility model uses the power of the power component to clean the surface of the upstream filter plate through the filter defoaming component, which can effectively avoid the problem of impurities accumulating on the surface of the filter plate, thereby improving the working efficiency of the filter plate and the equipment. At the same time, the power component drives the filter defoaming component and can also efficiently defoam the hydraulic oil that has been filtered, which is beneficial to improving the working efficiency of the equipment.

[0016] 3. The utility model can realize convenient disassembly and assembly of the filter element by setting up the installation mechanism, improve the maintenance and repair efficiency of the equipment by improving the disassembly and assembly efficiency of the filter element, reduce the labor intensity of the staff, and also help to improve the working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a defoaming oil filter for a hydraulic oil tank provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure analysis from another perspective of a defoaming oil filter for a hydraulic oil tank provided by the utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure analysis of a defoaming oil filter for a hydraulic oil tank provided by the utility model from another perspective;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of a defoaming oil filter for a hydraulic oil tank provided by the utility model;

[0021] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0022] In the figure, 1 is the body; 2 is the oil inlet; 3 is the external thread section; 4 is the first sealing cover; 5 is the internal thread section; 6 is the oil outlet; 7 is the second sealing cover; 8 is the upstream porous filter plate; 9 is the motor; 10 is the first rotating shaft; 11 is the first through groove; 12 is the sleeve; 13 is the second rotating shaft; 14 is the first bevel gear; 15 is the second bevel gear; 16 is the first annular plate; 17 is the cleaning rod; 18 is the stirring blade; 19 is the filter element; 20 is the fixed block; 21 is the second through groove; 22 is the engaging groove; 23 is the mounting rod; 24 is the groove; 25 is the oblique clamping block; 26 is the spring; 27 is the arcuate through groove; 28 is the connecting rope; 29 is the moving block; 30 is the second annular plate. DETAILED DESCRIPTION

[0023] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0024] like Figure 1-Figure 5As shown, a defoaming oil filter for a hydraulic oil tank includes a body 1, an oil inlet 2 is provided on the upper surface of the body 1, an external thread section 3 is provided on the circumferential side wall of the bottom of the body 1, a No. 1 sealing cover 4 is sleeved on the bottom of the body 1, an internal thread section 5 is provided on the inner wall of the No. 1 sealing cover 4, the external thread section 3 is threadedly connected to the internal thread section 5, an oil outlet 6 is provided on the bottom surface of the No. 1 sealing cover 4, and a No. 2 sealing cover 7 is provided outside the oil inlet 2 and the oil outlet 6. An upstream porous filter plate 8 is fixedly connected between the inner walls of the body 1, and a filtering and defoaming mechanism and a mounting mechanism are provided in the body 1. The filtering and defoaming mechanism includes a power component and And filtering and defoaming components, the mounting mechanism includes multiple mounting components, the power component includes a motor 9 fixedly connected to the side wall of the body 1 through a bracket, the output end of the motor 9 is fixedly connected to the No. 1 rotating shaft 10, the No. 1 rotating shaft 10 is rotatably connected to the inner wall of the body 1 through a bearing, the upper surface of the upstream porous filter plate 8 is provided with a No. 1 through groove 11, the No. 1 through groove 11 is fixedly connected to a sleeve 12, the sleeve 12 is provided with a No. 2 rotating shaft 13, the top and bottom ends of the No. 2 rotating shaft 13 are both rotatably connected to the upper surface and bottom surface of the sleeve 12 through bearings, and the No. 1 rotating shaft 10 is away from the motor 9. The bearing passes through and is rotatably connected to the inner wall of the sleeve 12. The end of the No. 1 rotating shaft 10 away from the motor 9 is fixedly connected to the No. 1 bevel gear 14. The circumferential direction of the No. 2 rotating shaft 13 is fixedly connected to the No. 2 bevel gear 15. The No. 1 bevel gear 14 is meshed with the No. 2 bevel gear 15. The filtering and defoaming component includes a No. 1 annular plate 16 fixedly connected to the bottom surface of the upstream porous filter plate 8. The top of the No. 2 rotating shaft 13 is circumferentially equidistantly fixedly connected to a plurality of fixed rods. The bottom surfaces of the plurality of fixed rods are fixedly connected to connecting rods. The lower ends of the plurality of connecting rods are fixedly connected to cleaning rods 17. The bottom end of the No. 2 rotating shaft 13 is fixedly connected to a stirring rod. The mixing blade 18 and the No. 1 annular plate 16 are provided with a filter element 19 on the outer cover. The No. 1 bevel gear 14 and the No. 2 bevel gear 15 are both located in the sleeve 12 to ensure that the power assembly can operate stably for a long time. The bottom surfaces of the multiple cleaning rods 17 are all in contact with the upper surface of the upstream porous filter plate 8, so that the multiple cleaning rods 17 can work efficiently. The upstream porous filter plate 8 is concentrically arranged with the sleeve 12, and the sleeve 12 is concentrically arranged with the filter element 19. The mixing blade 18 is located in the filter element 19, the No. 1 annular plate 16 is concentrically arranged with the filter element 19, and the circumferential side wall of the top of the filter element 19 is in contact with the inner wall of the No. 1 annular plate 16.

[0025] The mounting assembly includes a fixing block 20 fixedly connected to the side wall of the No. 1 annular plate 16, a No. 2 through groove 21 is provided on the upper surface of the fixing block 20, a No. 2 through groove 21 is provided on the inner wall of the No. 2 through groove 22, a mounting rod 23 is fixedly connected to the side wall of the filter element 19, a groove 24 is provided on the top of the mounting rod 23 near the side wall of the engaging groove 22, an oblique clamping block 25 is slidably connected in the groove 24, a spring 26 is fixedly connected between the side wall of the oblique clamping block 25 and the inner wall of the groove 24, an arcuate through groove 27 is provided in the mounting rod 23, and the arcuate through groove 2 7 is communicated with the groove 24, and a connecting rope 28 is provided in the arc-shaped through groove 27. The side end of the connecting rope 28 is fixedly connected to the side wall of the oblique clamping block 25, and the other end of the connecting rope 28 passes through the bottom end of the arc-shaped through groove 27. The bottom end of the connecting rope 28 is fixedly connected to a moving block 29. The upper surfaces and bottom surfaces of the multiple oblique clamping blocks 25 are respectively fitted with the inner top surfaces and inner bottom surfaces of the multiple grooves 24. A second annular plate 30 is fixedly connected between the side walls away from the multiple moving blocks 29 to facilitate operation by the staff.

[0026] The working principle of this utility model is as follows:

[0027] When it is necessary to use a defoaming oil filter to filter and defoam the hydraulic oil in the hydraulic system, connect the oil inlet 2 of the defoaming oil filter so that the hydraulic oil to be treated can enter the machine body 1 through the oil inlet 2, and then connect the hydraulic oil tank through the oil outlet 6 to allow the treated hydraulic oil to return. During the treatment, the hydraulic oil enters the machine body 1 through the oil inlet 2, and then the motor 9 is started. The hydraulic oil entering will directly pass through the upstream porous filter plate 8 for preliminary filtration, and then flow into the filter element 19 through the No. 1 annular plate 16 for filtration. During this filtration, impurities and particulate matter in the hydraulic oil will be filtered out by the upstream porous filter plate 8, and impurity particles and the like will also accumulate on the surface of the upstream porous filter plate 8, thereby affecting its filtration efficiency. At this time, the start of the motor 9 will drive the No. 1 rotating shaft 10 to rotate, and the rotation of the No. 1 rotating shaft 10 will drive the No. 1 bevel gear 14 to rotate, and then drive the No. 2 bevel gear 15 and the No. 2 rotating shaft 13 to rotate through meshing transmission, and the rotation of the No. 2 rotating shaft 13 drives multiple fixed rods to revolve, and the multiple fixed rods drive multiple cleaning rods 17 to revolve through the connecting rod. The hydraulic oil flows through the filter element 19 and the hydraulic oil flows through the filter element 19. The hydraulic oil flows through the filter element 19 and the hydraulic oil flows through the filter element 19. The hydraulic oil flows through the filter element 19 and the hydraulic oil flows through the filter element 19. The foam will produce different movement trajectories. Since the density of the foam is relatively low, the centrifugal force it is subjected to is small, while the density of the hydraulic oil is large and the centrifugal force it is subjected to is large. This causes the hydraulic oil to be thrown toward the periphery of the filter element 19, while the foam tends to gather in the central area or near the second shaft 13, thereby achieving the initial separation of the hydraulic oil and the foam. As the hydraulic oil is continuously thrown out, the foam layer is gradually concentrated and separated, and the purpose of defoaming is finally achieved. After that, the hydraulic oil will also be filtered out through the filter element 19 and flow back into the hydraulic oil tank through the oil outlet 6;

[0028] The filter element 19 needs to be cleaned or replaced after a period of working. At this time, the No. 1 sealing cover 4 is rotated so that the internal thread section 5 and the external thread section 3 are disengaged and separated. At this time, the filter element 19 is exposed, and by pulling the No. 2 annular plate 30 downwards, the No. 2 annular plate 30 will drive the oblique clamping block 25 to move through multiple movable blocks 29 and connecting ropes 28, thereby retracting it into the groove 24 and disengaging it from the locking groove 22. After the above is completed, the filter element 19 can be directly removed and replaced. When it is needed to be installed later, multiple installation rods 23 are respectively aligned with multiple No. 2 through grooves 21 and moved towards them. After multiple oblique clamping blocks 25 contact the edges of the fixed block 20, they will retract into the groove 24 under pressure until they move to the locking groove 22. At this time, the oblique clamping block 25 loses its restriction and will pop out under the action of the spring 26, and lock with the locking groove 22, thereby completing the installation of the filter element 19, which is efficient, convenient and more practical.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A defoaming oil filter for a hydraulic oil tank, comprising a body (1), characterized in that: The upper surface of the body (1) is provided with an oil inlet (2), the circumferential side wall of the bottom of the body (1) is provided with an external thread section (3), the bottom of the body (1) is sleeved with a No. 1 sealing cover (4), the inner wall of the No. 1 sealing cover (4) is provided with an internal thread section (5), the external thread section (3) and the internal thread section (5) are threadedly connected, the bottom surface of the No. 1 sealing cover (4) is provided with an oil outlet (6), the oil inlet (2) and the oil outlet (6) are both provided with a No. 2 sealing cover (7), an upstream porous filter plate (8) is fixedly connected between the inner walls of the body (1), a filtering and defoaming mechanism and an installation mechanism are provided in the body (1), the filtering and defoaming mechanism includes a power component and a filtering and defoaming component, and the installation mechanism includes a plurality of installation components.

2. The defoaming oil filter for a hydraulic oil tank according to claim 1, characterized in that: The power assembly comprises a motor (9) fixedly connected to the side wall of the machine body (1) through a bracket, the output end of the motor (9) is fixedly connected to a first rotating shaft (10), the first rotating shaft (10) is rotatably connected to the inner wall of the machine body (1) through a bearing, the upper surface of the upstream porous filter plate (8) is provided with a first through groove (11), a sleeve (12) is fixedly connected in the first through groove (11), a second rotating shaft (13) is provided in the sleeve (12), and the second rotating shaft (13) is connected to the inner wall of the machine body (1). The top and bottom ends of the shaft (3) are both rotatably connected to the upper surface and the bottom surface of the sleeve (12) through bearings, the end of the No. 1 rotating shaft (10) away from the motor (9) is rotatably connected to the inner wall of the sleeve (12) through bearings, the end of the No. 1 rotating shaft (10) away from the motor (9) is fixedly connected to the No. 1 bevel gear (14), the circumferential direction of the No. 2 rotating shaft (13) is fixedly connected to the No. 2 bevel gear (15), and the No. 1 bevel gear (14) is meshed with the No. 2 bevel gear (15).

3. The defoaming oil filter for a hydraulic oil tank according to claim 2, characterized in that: The filtering and defoaming component includes a No. 1 annular plate (16) fixedly connected to the bottom surface of the upstream porous filter plate (8), a plurality of fixed rods are fixedly connected to the top of the No. 2 rotating shaft (13) at equal intervals in the circumferential direction, the bottom surfaces of the plurality of fixed rods are fixedly connected to connecting rods, the lower ends of the plurality of connecting rods are fixedly connected to cleaning rods (17), the bottom end of the No. 2 rotating shaft (13) is fixedly connected to a stirring blade (18), and the outer shell of the No. 1 annular plate (16) is provided with a filter element (19).

4. The defoaming oil filter for a hydraulic oil tank according to claim 3, characterized in that: The mounting assembly comprises a fixing block (20) fixedly connected to the side wall of the first annular plate (16), the upper surface of the fixing block (20) is provided with a second through groove (21), the inner wall of the second through groove (21) is provided with a snap-fit ​​groove (22), the side wall of the filter element (19) is fixedly connected with a mounting rod (23), the top of the mounting rod (23) is provided with a groove (24) near the side wall of the snap-fit ​​groove (22), an oblique clamping block (25) is slidably connected in the groove (24), and the side of the oblique clamping block (25) is provided with a groove (24) near the top of the mounting rod (23). A spring (26) is fixedly connected between the wall and the inner wall of the groove (24); an arcuate through groove (27) is provided in the mounting rod (23); the arcuate through groove (27) is communicated with the groove (24); a connecting rope (28) is provided in the arcuate through groove (27); the side end of the connecting rope (28) is fixedly connected to the side wall of the oblique block (25); the other end of the connecting rope (28) passes through the bottom end of the arcuate through groove (27); and the bottom end of the connecting rope (28) is fixedly connected to a moving block (29).

5. The defoaming oil filter for a hydraulic oil tank according to claim 4, characterized in that: The upper surfaces and bottom surfaces of the plurality of oblique clamping blocks (25) are respectively fitted with the inner top surfaces and inner bottom surfaces of the plurality of grooves (24), and a second annular plate (30) is fixedly connected between the side walls of the plurality of movable blocks (29) facing away.

6. The defoaming oil filter for a hydraulic oil tank according to claim 3, characterized in that: The first bevel gear (14) and the second bevel gear (15) are both located in the sleeve (12), and the bottom surfaces of the plurality of cleaning rods (17) are all in contact with the upper surface of the upstream porous filter plate (8).

7. The defoaming oil filter for a hydraulic oil tank according to claim 3, characterized in that: The upstream porous filter plate (8) is concentrically arranged with the sleeve (12), the sleeve (12) is concentrically arranged with the filter core (19), and the stirring blade (18) is located inside the filter core (19).

8. The defoaming oil filter for a hydraulic oil tank according to claim 3, characterized in that: The first annular plate (16) is concentrically arranged with the filter element (19), and the circumferential side wall of the top of the filter element (19) is in contact with the inner wall of the first annular plate (16).

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