External precision machinery circulating lubricating oil filtering device

Abstract

The utility model belongs to the technical field of lubricating oil filtering devices, and particularly relates to an external precise mechanical circulating lubricating oil filtering device which comprises a filtering box and an oil inlet valve pipe installed at one end of the filtering box, the outer side wall of the oil inlet valve pipe is connected with a bypass valve pipe, and the bottom end of the side, close to the oil inlet valve pipe, of the filtering box is connected with an oil outlet valve pipe. The oil inlet valve pipe and the oil outlet valve pipe are in butt joint with a mechanical equipment main body lubricating system, then a filter element is installed on the inner wall of the filter box, then a second installation plate is installed at an opening in the surface of the filter box, meanwhile, a movable plate on one side of a positioning plate is pulled, and then a limiting plate is driven to stretch out and draw back at the opening in one side of the positioning plate; the assembly plate is matched with the positioning plate, then the movable plate is loosened, and the limiting plate is limited and fixed on the surface of the assembly plate, so that the filter element is conveniently and quickly disassembled and assembled, the filter element is conveniently cleaned and replaced, and the filtering effect of the circulating lubricating oil filtering device for the precision machinery is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of lubricating oil filtration devices, specifically relating to an external precision mechanical circulating lubricating oil filtration device. Background Technology

[0002] An external precision machinery circulating lubricating oil filtration device is a device that operates independently of the main lubrication system of mechanical equipment, connected externally to it. Its core function is to perform high-precision filtration of the circulating lubricating oil, ensuring its cleanliness, extending its service life, and simultaneously guaranteeing the normal operation of all moving parts of the precision machinery, reducing wear and malfunctions.

[0003] In precision machine tools such as CNC machining centers and grinding machines, external precision mechanical circulating lubricating oil filtration devices can effectively filter impurities in the lubricating oil, ensuring the high-precision operation of various moving parts of the machine tool. In industrial automated production lines such as automobile manufacturing and electronic equipment production, a large number of precision machinery and automated equipment require reliable lubrication.

[0004] Specifically, during long-term use of lubricating oil filtration devices, the built-in filter element gradually accumulates a large amount of particulate impurities due to continuous filtration operations. These impurities not only adhere to the surface of the filter element but also gradually penetrate into its interior, significantly reducing its filtration efficiency and performance. At the same time, many lubricating oil filtration devices on the market have rather cumbersome and complex filter element replacement processes. These processes not only require professional operation but may also involve complex disassembly steps and tedious installation procedures. These factors not only increase maintenance costs but also significantly reduce the ease of use and overall operational efficiency of the equipment. Utility Model Content

[0005] The purpose of this invention is to provide an external precision mechanical circulating lubricating oil filtration device. This device addresses the problem that during long-term use of lubricating oil filters, the built-in filter element gradually accumulates a large amount of particulate impurities due to continuous filtration. These impurities not only adhere to the filter element surface but also gradually penetrate into the filter element's interior, significantly reducing its filtration efficiency and performance. Furthermore, many lubricating oil filtration devices on the market have rather cumbersome and complex filter element replacement processes. These processes require professional personnel and may involve complex disassembly steps and tedious installation procedures. These factors not only increase maintenance costs but also significantly reduce the ease of use and overall operational efficiency of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an external precision mechanical circulating lubricating oil filtration device, comprising a filter box and an oil inlet valve pipe installed at one end of the filter box, a bypass valve pipe connected to the outer side wall of the oil inlet valve pipe, an oil outlet valve pipe connected to the bottom end of the filter box near the oil inlet valve pipe, an observation window installed on one side of the filter box, a fixing plate connected to the inner wall of the filter box, a first mounting plate installed on the surface of the fixing plate, and a filter element connected to the surface of the first mounting plate;

[0007] The top surface of the filter box is connected to a second mounting plate, the surface of the second mounting plate is connected to a handle, and the two ends of the surface of the second mounting plate are connected to assembly plates. The surface of the filter box near the assembly plates is connected to a positioning plate, one side of the positioning plate is connected to a movable plate, the other end of the movable plate is connected to a linkage plate, one side of the linkage plate is connected to a linkage spring, and the other side of the linkage plate is connected to a limit plate.

[0008] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, an oil inlet solenoid valve is installed on the surface of the oil inlet valve pipe, a bypass solenoid valve is installed on the surface of the bypass valve pipe, and an oil passage hole is opened on the surface of the fixing plate.

[0009] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, a rubber sealing strip is installed on the outer side wall of the second mounting plate, the surface size of the second mounting plate is adapted to the top opening size of the filter box, and the shaft diameter of the filter element is adapted to the shaft diameter of the inner wall of the filter box.

[0010] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, one end of the linkage spring relative to the linkage plate is connected to the inner wall of the positioning plate, and the linkage spring and the linkage plate form an elastic telescopic structure.

[0011] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, the limiting plate is made of stainless steel, and the bottom surface of the limiting plate is in contact with the surface of the assembly plate.

[0012] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, a sealing ring is installed on the mating surface of the oil inlet valve pipe and the oil outlet valve pipe, and the sealing ring is made of silicone.

[0013] As an external precision mechanical circulating lubricating oil filtration device of this utility model, preferably, one side of the sealing ring is connected to an installation strip, and the oil inlet valve pipe and the oil outlet valve pipe are both provided with installation grooves on the side near the installation strip, and the sealing ring is interference-fitted with the installation groove through the installation strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention connects the inlet and outlet valve pipes to the main lubrication system of the mechanical equipment. The filter element is then installed on the inner wall of the filter box. Next, a second mounting plate is installed at the opening on the surface of the filter box. Simultaneously, the movable plate on one side of the positioning plate is pulled, causing the limiting plate to extend and retract at the opening on one side of the positioning plate, allowing the assembly plate to engage with the positioning plate. The movable plate is then released, fixing the limiting plate on the surface of the assembly plate. This facilitates quick assembly and disassembly of the filter element, making cleaning and replacement easier and improving the filtration effect of the precision mechanical circulating lubricating oil filtration device. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall assembly structure provided for an embodiment of this application.

[0018] Figure 2 This is a rear view schematic diagram of the lubricating oil filtration device provided in the embodiments of this application.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the lubricating oil filtration device provided in the embodiments of this application.

[0020] Figure 4 This is a schematic diagram of the filter element installation structure provided in an embodiment of this application.

[0021] Figure 5 This is an exploded view of the positioning plate installation structure provided in an embodiment of this application.

[0022] Figure 6 This is an exploded view of the sealing ring installation structure provided in an embodiment of this application.

[0023] In the diagram: 1. Filter box; 2. Inlet valve pipe; 3. Bypass valve pipe; 4. Outlet valve pipe; 5. Inlet solenoid valve; 6. Bypass solenoid valve; 7. Observation window; 8. Fixing plate; 81. Oil passage hole; 9. First mounting plate; 10. Filter element; 11. Second mounting plate; 12. Handle; 13. Assembly plate; 14. Positioning plate; 15. Movable plate; 16. Linkage plate; 17. Linkage spring; 18. Limiting plate; 19. Sealing ring; 20. Mounting strip; 21. Mounting groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 The present invention provides the following technical solution: an external precision mechanical circulating lubricating oil filtration device, including a filter box 1 and an oil inlet valve pipe 2 installed at one end of the filter box 1, a bypass valve pipe 3 connected to the outer side wall of the oil inlet valve pipe 2, an oil outlet valve pipe 4 connected to the bottom end of the filter box 1 near the oil inlet valve pipe 2, an observation window 7 installed on one side of the filter box 1, a fixing plate 8 connected to the inner wall of the filter box 1, a first mounting plate 9 installed on the surface of the fixing plate 8, and a filter element 10 connected to the surface of the first mounting plate 9.

[0026] A second mounting plate 11 is connected to the top surface of the filter box 1. A handle 12 is connected to the surface of the second mounting plate 11. Assembly plates 13 are connected to both ends of the surface of the second mounting plate 11. A positioning plate 14 is connected to the surface of the filter box 1 near the assembly plate 13. A movable plate 15 is connected to one side of the positioning plate 14. A linkage plate 16 is connected to the other end of the movable plate 15. A linkage spring 17 is connected to one side of the linkage plate 16. A limit plate 18 is connected to the other side of the linkage plate 16.

[0027] Preferably, an inlet solenoid valve 5 is installed on the surface of the inlet valve pipe 2, a bypass solenoid valve 6 is installed on the surface of the bypass valve pipe 3, and an oil passage hole 81 is opened on the surface of the fixing plate 8. In specific use, the precision mechanical circulating lubricating oil filter device is externally connected to the surface of the main lubrication system of the mechanical equipment. Then, the lubricating oil enters the interior of the filter box 1 through the inlet valve pipe 2 and is filtered by the filter element 10. Then, due to the pressure of the equipment pump body, the filtered lubricating oil flows through the oil passage hole 81 on the surface of the fixing plate 8 to the outlet valve pipe 4, realizing the effect of lubricating oil circulation filtration. In addition, when the filter element 10 is blocked due to the accumulation of impurities, causing the inlet and outlet pressure difference to reach the set value, the bypass valve pipe 3 automatically opens. At this time, the lubricating oil bypasses 10 and directly enters the outlet from the bypass valve pipe 3 channel, thereby ensuring that the lubrication system of the mechanical equipment will not be cut off due to the blockage of the filter element 10, and avoiding damage to the equipment due to poor lubrication.

[0028] Preferably, a rubber sealing strip is installed on the outer wall of the second mounting plate 11, the surface dimensions of the second mounting plate 11 are adapted to the top opening size of the filter box 1, and the shaft diameter of the filter element 10 is adapted to the shaft diameter of the inner wall of the filter box 1. In actual use, by installing a rubber sealing strip on the side of the second mounting plate 11, a sealing line at the connection is ensured.

[0029] Preferably, one end of the linkage spring 17 relative to the linkage plate 16 is connected to the inner wall of the positioning plate 14, and the linkage spring 17 and the linkage plate 16 form an elastic telescopic structure. In actual use, by pulling the movable plate 15, the linkage plate 16 is easily driven to squeeze the linkage spring 17, which in turn facilitates the adjustment of the limiting plate 18.

[0030] Preferably, the limiting plate 18 is made of stainless steel, and its bottom surface is in contact with the surface of the assembly plate 13. In actual use, by limiting and fixing the limiting plate 18 on the surface of the assembly plate 13, it is convenient to install the second mounting plate 11 stably.

[0031] Preferably, a sealing ring 19 is installed on the mating surface of the oil inlet valve pipe 2 and the oil outlet valve pipe 4. The sealing ring 19 is made of silicone. In actual use, the use of the sealing ring 19 facilitates the sealing connection between the precision mechanical circulating lubricating oil filter device and the main lubrication system of the mechanical equipment.

[0032] Preferably, a mounting strip 20 is connected to one side of the sealing ring 19. Mounting grooves 21 are provided on the side of the oil inlet valve pipe 2 and the oil outlet valve pipe 4 near the mounting strip 20. The sealing ring 19 is press-fitted into the mounting grooves 21 via the mounting strip 20. In practical use, the mounting strip 20 is installed in the mounting grooves 21 on the side of the oil inlet valve pipe 2 and the oil outlet valve pipe 4 to facilitate stable installation of the sealing ring 19.

[0033] The working principle of this utility model is as follows: By connecting the oil inlet valve pipe 2 and the oil outlet valve pipe 4 to the main lubrication system of the mechanical equipment, the filter element 10 is installed on the inner wall of the filter box 1. Then, the second mounting plate 11 is installed at the opening on the surface of the filter box 1. At the same time, the movable plate 15 on one side of the positioning plate 14 is pulled, thereby driving the limiting plate 18 to extend and retract at the opening on one side of the positioning plate 14, so that the assembly plate 13 cooperates with the positioning plate 14. Then, the movable plate 15 is released, so that the limiting plate 18 is fixed on the surface of the assembly plate 13, which facilitates the quick disassembly and assembly of the filter element 10, and facilitates the cleaning and replacement of the filter element 10, thereby improving the filtration effect of the precision mechanical circulating lubricating oil filtration device. In addition, by installing the mounting strip 20 on one side of the sealing ring 19 with the mounting groove 21 on one side of the oil inlet valve pipe 2 and the oil outlet valve pipe 4, the sealing ring 19 is then stably installed at the joint end of the oil inlet valve pipe 2 and the oil outlet valve pipe 4, which improves the sealing performance at the joint of the precision mechanical circulating lubricating oil filtration device and ensures the stability of the lubricating oil filtration.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An external precision mechanical circulating lubricating oil filtration device, comprising a filter box (1) and an oil inlet valve pipe (2) installed at one end of the filter box (1), characterized in that: A bypass valve pipe (3) is connected to the outer wall of the oil inlet valve pipe (2). An oil outlet valve pipe (4) is connected to the bottom end of the filter box (1) near the oil inlet valve pipe (2). An observation window (7) is installed on one side of the filter box (1). A fixing plate (8) is connected to the inner wall of the filter box (1). A first mounting plate (9) is installed on the surface of the fixing plate (8). A filter element (10) is connected to the surface of the first mounting plate (9). The top surface of the filter box (1) is connected to a second mounting plate (11), the surface of the second mounting plate (11) is connected to a handle (12), the two ends of the surface of the second mounting plate (11) are connected to assembly plates (13), the surface of the filter box (1) near the assembly plate (13) is connected to a positioning plate (14), one side of the positioning plate (14) is connected to a movable plate (15), the other end of the movable plate (15) is connected to a linkage plate (16), one side of the linkage plate (16) is connected to a linkage spring (17), and the other side of the linkage plate (16) is connected to a limit plate (18).

2. The external precision mechanical circulating lubricating oil filtration device according to claim 1, characterized in that: An oil inlet solenoid valve (5) is installed on the surface of the oil inlet valve pipe (2), a bypass solenoid valve (6) is installed on the surface of the bypass valve pipe (3), and an oil passage hole (81) is opened on the surface of the fixing plate (8).

3. The external precision mechanical circulating lubricating oil filtration device according to claim 1, characterized in that: A rubber sealing strip is installed on the outer side wall of the second mounting plate (11). The surface size of the second mounting plate (11) is adapted to the top opening size of the filter box (1). The shaft diameter of the filter element (10) is adapted to the shaft diameter of the inner wall of the filter box (1).

4. The external precision mechanical circulating lubricating oil filtration device according to claim 1, characterized in that: The linkage spring (17) is connected to the inner wall of the positioning plate (14) at one end relative to the linkage plate (16), and the linkage spring (17) and the linkage plate (16) form an elastic telescopic structure.

5. The external precision mechanical circulating lubricating oil filtration device according to claim 1, characterized in that: The limiting plate (18) is made of stainless steel, and the bottom surface of the limiting plate (18) is in contact with the surface of the assembly plate (13).

6. The external precision mechanical circulating lubricating oil filtration device according to claim 1, characterized in that: A sealing ring (19) is installed on the mating surface of the oil inlet valve pipe (2) and the oil outlet valve pipe (4), and the sealing ring (19) is made of silicone.

7. An external precision mechanical circulating lubricating oil filtration device according to claim 6, characterized in that: The sealing ring (19) is connected to an installation strip (20) on one side. The oil inlet valve pipe (2) and the oil outlet valve pipe (4) are both provided with installation grooves (21) on the side near the installation strip (20). The sealing ring (19) is press-fitted with the installation groove (21) through the installation strip (20).

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