Oil mist separation filter structure for a vacuum pump

Abstract

The utility model discloses a kind of oil mist separation filter core structures of vacuum pump, relate to oil mist separation technical field. Including outer support frame;Filter core main body is attached to the inner wall of outer support frame;Flow guide pipe is set in filter core main body;Filtering oil suction subassembly is set in filter core main body and is away from the end of the bottom surface of outer support frame spoiler assembly horizontal through setting in flow guide pipe and is away from the end of the bottom surface of outer support frame.The utility model has improved the quality of separated oil and the like advantages.

Description

Technical Field

[0001] This utility model relates to the field of oil mist separation technology, specifically to an oil mist separation filter element structure for a vacuum pump. Background Technology

[0002] During the operation of a vacuum pump, magnetic metal shavings are generated due to mechanical wear and friction between metal parts. These shavings mix into the vacuum pump oil, affecting its cleanliness, reducing lubrication, and potentially causing equipment malfunction. Some existing oil mist separator filters simply separate the oil, leaving magnetic metal shavings in the separated oil. Furthermore, the flow of oil mist generates annoying noise. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide an oil mist separation filter element structure for a vacuum pump, which has advantages such as improving the quality of the separated oil.

[0004] To solve the above technical problems, this utility model adopts the following technical solution: This utility model provides an oil mist separation filter element structure for a vacuum pump, comprising:

[0005] External support frame;

[0006] The filter element body is fitted and mounted on the inner wall of the outer support frame;

[0007] The guide tube is installed inside the filter element body;

[0008] The filter oil suction assembly is located inside the filter element body at one end away from the bottom surface of the outer support frame.

[0009] The spoiler assembly is horizontally installed at the end of the guide tube away from the bottom surface of the outer support frame.

[0010] Preferably, the oil-absorbing filter assembly includes:

[0011] The frustum frame is located inside the filter element body at one end away from the bottom surface of the outer support frame. The circular bottom surface of the frustum frame has a ring-shaped structure, and the curved surface of the frustum frame has a sieve-like structure.

[0012] The oil-absorbing layer has the same shape as the curved surface of the frustum frame, and is fitted over the outside of the curved surface of the frustum frame.

[0013] The squeeze cap is movably positioned above the oil-absorbing layer. The oil-absorbing layer can adsorb oil mist and buffer the flow of oil mist, reducing the resonance noise generated by oil mist in the filter element body.

[0014] Preferably, the shape of the extrusion cap is the same as the shape of the oil-absorbing layer curved surface. A pressure rod is movably and through the top surface of the outer support frame. The extrusion cap is connected to the pressure rod. A spring is sleeved on the outside of the pressure rod. The two ends of the spring contact the top surface of the outer support frame and the top surface of the extrusion cap, respectively. The oil-absorbing layer can be squeezed by the extrusion cap, so that the oil adsorbed on the oil-absorbing layer drips off, thereby improving the oil mist recovery effect.

[0015] Preferably, the spoiler assembly includes:

[0016] The central shaft horizontally penetrates one end of the guide tube away from the bottom surface of the outer support frame, and both ends of the central shaft along its length are rotatably mounted on the inner wall of the filter element body.

[0017] The fan-shaped plates are arranged in multiples and are evenly distributed along the outer peripheral wall of the central axis. The fan-shaped plates move through the end of the guide tube away from the bottom surface of the outer support frame, which helps to buffer the flow of oil mist and thus reduce the resonance sound generated by the oil mist in the filter element body.

[0018] Preferably, the guide pipe has two coaxial through holes on the side wall away from the bottom surface of the outer support frame. The two ends of the fan-shaped plate in the length direction respectively move through the two through holes, which facilitates the rotation of the fan-shaped plate under the impact of the oil mist flow, thereby buffering the flow of oil mist.

[0019] Preferably, the guide pipe has multiple auxiliary through holes arranged circumferentially on the side wall of the end away from the bottom surface of the outer support frame, and the auxiliary through holes are located above the through holes, which can reduce the accumulation of impurities in the oil mist at the end of the guide pipe away from the bottom surface of the outer support frame; at the same time, it can also play a certain role in silencing the flow of oil mist.

[0020] Preferably, the top surface of the outer support frame is open, and a matching cover is threaded into the opening of the outer support frame. The pressure rod moves through the cover, and the two ends of the spring contact the top surfaces of the cover and the extrusion cover, respectively, so that the pressure rod can be rotated to extrude the oil-absorbing layer through the extrusion cover, causing the oil adsorbed on the oil-absorbing layer to drip off, thereby improving the oil mist recovery effect.

[0021] Preferably, an oil drain pipe is provided through the bottom surface of the outer support frame to facilitate the discharge of oil through the oil drain pipe.

[0022] Preferably, multiple filter plates are arranged parallel to each other at intervals at the bottom of the filter element body. The outer peripheral wall of the filter plate abuts against the inner peripheral wall of the filter element body, which can filter the oil and thus improve the quality of oil recovery.

[0023] Preferably, the frustum frame is made of magnetic material, which facilitates the adsorption of magnetic metal shavings present in the oil mist, thereby improving the quality of oil recovery.

[0024] The beneficial effects of this utility model are as follows: 1. The frustum frame in the oil-absorbing filter assembly is made of magnetic material, which facilitates the adsorption of magnetic metal shavings mixed in the oil mist, thereby improving the quality of the oil.

[0025] 2. The baffle assembly allows the oil mist to rotate as it flows, which helps to reduce the flow speed of the oil mist and reduce the resonance noise generated by the oil mist in the filter element body. At the same time, auxiliary through holes are provided circumferentially on the side wall of the guide pipe away from the bottom surface of the outer support frame, which can play a certain role in noise reduction of the flow of oil mist. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an oil mist separation filter element for a vacuum pump, provided as an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram showing the position of the baffle assembly in an oil mist separation filter structure for a vacuum pump, provided in an embodiment of the present invention.

[0029] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0030] Figure 4 This is a schematic diagram of a baffle assembly structure for an oil mist separation filter element structure of a vacuum pump, provided in an embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the frustum frame and oil absorption layer position of an oil mist separation filter element structure for a vacuum pump, provided for an embodiment of this utility model.

[0032] Figure 6 This is a schematic diagram showing the through-hole position of an oil mist separation filter element structure for a vacuum pump, provided as an embodiment of the present invention.

[0033] Explanation of reference numerals in the attached drawings: 1. Outer support frame; 11. Pressure rod; 12. Spring; 13. Cover; 2. Filter element body; 3. Guide pipe; 31. Through hole; 32. Auxiliary through hole; 4. Filter oil suction assembly; 41. Frustum frame; 42. Oil suction layer; 43. Squeeze cover; 5. Baffle assembly; 51. Central shaft; 52. Fan-shaped plate; 6. Oil drain pipe; 7. Filter disc. Detailed Implementation

[0034] 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.

[0035] Example 1

[0036] like Figure 1 As shown, this utility model provides an oil mist separation filter element structure for a vacuum pump, including an outer support frame 1; a filter element body 2 is attached to the inner wall of the outer support frame 1; a guide pipe 3 is disposed inside the filter element body 2; a filter oil suction assembly 4 is disposed inside the filter element body 2 at one end away from the bottom surface of the outer support frame 1; a baffle assembly 5 is horizontally disposed through the guide pipe 3 at one end away from the bottom surface of the outer support frame 1; and an oil drain pipe 6 is disposed through the bottom surface of the outer support frame 1 to facilitate the discharge of oil through the oil drain pipe 6.

[0037] Oil mist enters the filter body 2 through the guide pipe 3 (when the oil mist flows through the baffle assembly 5, it can play a buffering role). The filter body 2 filters the oil mist particles, so that the filtered clean air is discharged. The oil falls onto the bottom surface inside the outer support frame 1 under the action of gravity and is discharged through the oil drain pipe 6.

[0038] The oil mist flowing to the top of the filter element body 2 can be adsorbed by the oil suction component 4, and the magnetic metal debris in the oil mist can be adsorbed and discharged through the oil drain pipe 6.

[0039] Example 2

[0040] Based on Example 1, such as Figure 1 and Figure 5As shown, the filter oil absorption assembly 4 includes a frustum frame 41, which is located inside the filter element body 2 at one end away from the bottom surface of the outer support frame 1. The circular bottom surface of the frustum frame 41 has an annular structure, and the curved surface of the frustum frame 41 has a screen-like structure. The shape of the oil absorption layer 42 is the same as the shape of the curved surface of the frustum frame 41, and the oil absorption layer 42 is fitted outside the curved surface of the frustum frame 41. The squeeze cap 43 is movably disposed above the oil absorption layer 42. The shape of the squeeze cap 43 is the same as the shape of the curved surface of the oil absorption layer 42. A pressure rod 11 is movably installed through the top surface of the outer support frame 1. The extrusion cover 43 is connected to the pressure rod 11. A spring 12 is sleeved on the outside of the pressure rod 11. The two ends of the spring 12 are in contact with the top surface of the outer support frame 1 and the top surface of the extrusion cover 43, respectively. The top surface of the outer support frame 1 is open, and a matching cover 13 is threaded into the opening of the outer support frame 1. The pressure rod 11 movably passes through the cover 13, and the two ends of the spring 12 are in contact with the top surface of the cover 13 and the extrusion cover 43, respectively.

[0041] Oil mist entering the filter element body 2 through the guide pipe 3 (oil mist flowing to the top of the filter element body 2) can pass through the circular bottom surface of the frustum frame 41 and be adsorbed by the oil absorption layer 42. The curved surface of the frustum frame 41 has a sieve-like structure, which facilitates the oil mist to pass through and be adsorbed by the oil absorption layer 42 (at the same time, since the frustum frame 41 is made of magnetic material, it can adsorb magnetic metal shavings mixed in the oil mist, thereby improving the quality of oil recovery). The pressure rod 11 can be moved on the cover 13 to move the squeeze cover 43 closer to the oil absorption layer 42 (while squeezing the spring 12, the spring 12 helps to prevent the squeeze cover 43 from loosening). This allows the squeeze cover 43 to be fitted onto the outside of the oil absorption layer 42. As the squeeze cover 43 continues to move, it can squeeze the oil absorption layer 42, thereby compressing the oil adsorbed in the oil absorption layer 42 and flowing towards the bottom surface of the outer support frame 1, so that the oil can be discharged through the oil drain pipe 6.

[0042] The cover 13 can be opened (the outer peripheral wall of the cover 13 can be provided with external threads, and the inner peripheral wall of the opening of the outer support frame 1 is provided with internal threads, so that the cover 13 is threadedly connected to the opening of the outer support frame 1, which is convenient for disassembly and installation), and the squeeze cover 43 and the pressure rod 11 can be taken out, so as to observe and judge whether the filter element body 2 and the oil absorption layer 42 need to be replaced or cleaned.

[0043] Example 3

[0044] Based on Example 1, such as Figures 1 to 3 , Figure 6As shown, the baffle assembly 5 includes a central shaft 51, which horizontally penetrates one end of the guide tube 3 away from the bottom surface of the outer support frame 1, and both ends of the central shaft 51 in the length direction are rotatably mounted on the inner wall of the filter body 2; multiple fan-shaped plates 52 are provided, and the multiple fan-shaped plates 52 are evenly distributed along the outer peripheral wall of the central shaft 51, and the fan-shaped plates 52 movably penetrate one end of the guide tube 3 away from the bottom surface of the outer support frame 1; two coaxial through holes 31 are provided on the side wall of the end of the guide tube 3 away from the bottom surface of the outer support frame 1, and both ends of the fan-shaped plates 52 in the length direction respectively movably penetrate the two through holes 31.

[0045] The oil mist entering the filter element body 2 through the guide pipe 3 can blow the fan-shaped plate 52 to rotate around the central axis 51, thereby buffering the flow of oil mist and reducing the resonance sound generated by the oil mist in the filter element body 2; the through hole 31 is set so that the fan-shaped plate 52 will not interfere with the outer wall of the guide pipe 3 when it rotates around the central axis 51.

[0046] Multiple auxiliary through holes 32 are provided circumferentially on the side wall of the end of the guide pipe 3 away from the bottom surface of the outer support frame 1, and the auxiliary through holes 32 are located above the through holes 31; this can reduce the accumulation of impurities in the oil mist at the end of the guide pipe 3 away from the bottom surface of the outer support frame 1; at the same time, it can also play a certain role in silencing the flow of oil mist.

[0047] Example 4

[0048] Based on Example 1, such as Figure 1 As shown, multiple filter plates 7 are arranged parallel to each other at the bottom of the filter element body 2. The outer peripheral wall of the filter plate 7 abuts against the inner peripheral wall of the filter element body 2. This facilitates the filter plate 7 to filter the oil layer by layer, and finally discharge it through the oil drain pipe 6, thereby improving the quality of oil recovery.

[0049] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An oil mist separation filter element structure for a vacuum pump, characterized in that, include: External support frame (1); The filter element body (2) is attached to the inner wall of the outer support frame (1); The guide pipe (3) is installed inside the filter element body (2); The filter oil suction assembly (4) is located inside the filter element body (2) at one end away from the bottom surface of the outer support frame (1); The spoiler assembly (5) is horizontally disposed at one end of the guide pipe (3) away from the bottom surface of the outer support frame (1).

2. The oil mist separation filter element structure for a vacuum pump as described in claim 1, characterized in that, The oil filtration and suction assembly (4) includes: The frustum frame (41) is located at one end of the filter element body (2) away from the bottom surface of the outer support frame (1). The circular bottom surface of the frustum frame (41) is a ring structure, and the curved surface of the frustum frame (41) is a screen structure. Oil-absorbing layer (42) has the same shape as the curved surface of the frustum frame (41), and the oil-absorbing layer (42) is fitted outside the curved surface of the frustum frame (41). A squeeze cap (43) is movably disposed above the oil-absorbing layer (42).

3. The oil mist separation filter element structure for a vacuum pump as described in claim 2, characterized in that, The shape of the extrusion cap (43) is the same as the shape of the oil absorption layer (42). A pressure rod (11) is movably installed on the top surface of the outer support frame (1). The extrusion cap (43) is connected to the pressure rod (11). A spring (12) is sleeved on the outside of the pressure rod (11). The two ends of the spring (12) are in contact with the top surface of the outer support frame (1) and the top surface of the extrusion cap (43), respectively.

4. The oil mist separation filter element structure for a vacuum pump as described in claim 1, characterized in that, The spoiler assembly (5) includes: The central shaft (51) is horizontally inserted through one end of the guide tube (3) away from the bottom surface of the outer support frame (1), and both ends of the central shaft (51) in the length direction are rotatably set on the inner wall of the filter body (2); A fan-shaped plate (52) is provided, and multiple fan-shaped plates (52) are evenly distributed along the outer peripheral wall of the central axis (51). The fan-shaped plate (52) moves through the end of the guide pipe (3) away from the bottom surface of the outer support frame (1).

5. The oil mist separation filter element structure for a vacuum pump as described in claim 4, characterized in that, Two coaxial through holes (31) are provided on the side wall of the guide tube (3) away from the bottom surface of the outer support frame (1), and the two ends of the fan-shaped plate (52) in the length direction respectively move through the two through holes (31).

6. The oil mist separation filter element structure for a vacuum pump as described in claim 5, characterized in that, Multiple auxiliary through holes (32) are provided circumferentially on the side wall of the end of the guide pipe (3) away from the bottom surface of the outer support frame (1), and the auxiliary through holes (32) are located above the through holes (31).

7. The oil mist separation filter element structure for a vacuum pump as described in claim 3, characterized in that, The top surface of the outer support frame (1) is open, and the opening of the outer support frame (1) is threaded with a matching cover (13). The pressure rod (11) moves through the cover (13), and the two ends of the spring (12) are in contact with the top surfaces of the cover (13) and the compression cover (43), respectively.

8. The oil mist separation filter element structure for a vacuum pump as described in claim 1, characterized in that, An oil drain pipe (6) is installed through the bottom surface of the outer support frame (1).

9. The oil mist separation filter element structure for a vacuum pump as described in claim 1, characterized in that, Multiple filter discs (7) are arranged parallel to each other at the bottom of the filter element body (2), and the outer peripheral wall of the filter discs (7) abuts against the inner peripheral wall of the filter element body (2).

10. The oil mist separation filter element structure for a vacuum pump as described in claim 2, characterized in that, The frustum frame (41) is made of magnetic material.

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